CN102153011B - Manufacturing process of sealing adhesive tape for elevator door - Google Patents
Manufacturing process of sealing adhesive tape for elevator door Download PDFInfo
- Publication number
- CN102153011B CN102153011B CN2011100765103A CN201110076510A CN102153011B CN 102153011 B CN102153011 B CN 102153011B CN 2011100765103 A CN2011100765103 A CN 2011100765103A CN 201110076510 A CN201110076510 A CN 201110076510A CN 102153011 B CN102153011 B CN 102153011B
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- Prior art keywords
- elevator door
- plastic
- pressure injection
- forming cavity
- rigid plastic
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000012945 sealing adhesive Substances 0.000 title abstract 11
- 239000004033 plastic Substances 0.000 claims abstract description 141
- 238000007789 sealing Methods 0.000 claims abstract description 138
- 238000009434 installation Methods 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000035939 shock Effects 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims description 72
- 239000007924 injection Substances 0.000 claims description 72
- 238000000465 moulding Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 13
- 239000003507 refrigerant Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 12
- 238000010137 moulding (plastic) Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/30—Constructional features of doors or gates
Abstract
The invention discloses a sealing adhesive tape for an elevator door and a manufacturing process of the sealing adhesive tape, and relates to the field of sealing adhesive tapes for the elevator door. The sealing adhesive tape for the elevator door comprises an installation sheet made of hard plastic, and a sealing head connected with one end of the installation sheet; the sealing head has a sealing face; and a shock absorption hole of which the axial line is parallel to the sealing face is formed on the sealing head. The manufacturing process comprises the following steps of: extruding a sealing adhesive sheet for the elevator door by using a die; and cutting the sealing adhesive sheet for the elevator door into the sealing adhesive tapes for the elevator door. By the process, the process for manufacturing a formed sealing adhesive tape is simplified, the manufacturing cost is reduced, and the forming quality of the sealing adhesive tape is improved; and the sealing adhesive tape has high shock-absorption capability and large resilience force.
Description
Technical field
The present invention relates to the manufacturing process of elevator door with sealing band and elevator door sealing band.
Background technology
Elevator door sealing rubber strip can play the effect of buffering, crashproof, sealing, shading, decoration.Now, the structure of sealing joint strip is varied, has also produced different forming processs according to different sealing joint strip structures.As the patent No., be to be that 2005.9.16 discloses a kind of Lift Car Door Hall Door Sealing Strip And Shaping Process in the patent documentation of 2007.11.28 the ZL200510060790.3 applying date.Sealing band comprises that being arranged on elevator two fans the hard soft modified PVC layer that is embedded with skeleton matched on the doors of the car gate Room, described skeleton is stainless steel substrates or the cold rolling steel disc of flow forming, be positioned at described hard modified PVC layer one end that match and be embedded with soft modified PVC layer, and described two soft modified PVC layers that match have the contact surface matched.Although the sealing band of this structure can be realized the basic function of elevator sealing band, but, skeleton to be embedded in hard modified PVC layer, in extrusion molding, it is good to carry skeleton, the hard modified PVC of injection and inject will the work good quality of guarantee product of soft modified PVC three, therefore, having relatively high expectations to moulding; In addition, when soft modified PVC layer deforms, be that change has occurred the interior tissue of material, in deformation process, between material structure, there is mutual restriction, therefore, deflection can only reach the ultimate deformation amount of material itself, as surpassed the ultimate deformation amount, become plastic deformation, therefore, screen resilience reduces, have again, limited due to deflection, the shake-proof ability of sealing band is poor.
Summary of the invention
The purpose of this invention is to provide a kind of elevator door sealing rubber strip, technical matters to be solved is to simplify the forming process of sealing joint strip, improves the shock resistance of sealing joint strip, improves the screen resilience of sealing joint strip.
Another object of the present invention is to provide a kind of elevator door sealing rubber strip manufacturing process, and technical matters to be solved is to simplify the manufacturing process of moulding sealing joint strip, reduces manufacturing cost, improves the Forming Quality of sealing joint strip.
For achieving the above object, elevator door sealing rubber strip, comprise that described sealing head has a sealing surface, on sealing head, has the axis shock relieve vent parallel with sealing surface by the installation sheet of rigid plastic moulding and the sealing head be connected with installation sheet one end.
Sealing joint strip of the present invention, due to installation sheet only by the rigid plastic moulding, when the forming seal adhesive tape, by rigid plastic and nonrigid plastic simultaneously pressure injection in mould and extrusion molding get final product, with respect to prior art, do not need rigid plastic to be embedded in skeleton, therefore, simplify the technique of moulding, reduced the cost of moulding; In addition, owing to being provided with shock relieve vent, like this, sealing head distortion trailing portion material has been filled in shock relieve vent, therefore, the deflection of sealing head can be very large, good damping effect, and, after squeese pressure was cancelled, the screen resilience of sealing head was also large, for extruding antidetonation has next time been established basis preferably.
As improvement, on sealing head, be positioned at the side contacted with elevator door and be formed with protrusion.When being installed to sealing joint strip on elevator door, protrusion deforms, between sealing joint strip and elevator door, produce squeese pressure and can not produce gap, the steadiness that sealing joint strip is fixed on elevator door is good, in addition, when the fastener be used to sealing joint strip is installed occurs to become flexible, because protrusion has rebound action, also can guarantee sealing joint strip and elevator door close contact.
As improvement, on installation sheet, be positioned at installation sheet and the sealing head junction is provided with dovetail furrow, sealing head is provided with holding to the jut in dovetail furrow.Like this, being connected firmly of sealing head and installation sheet, be not easy to separate the service life of having improved sealing joint strip.
As specializing, the material that installation sheet is used is rigid PVC, and the material that sealing head is used is flexible PVC.
As improvement, installation sheet is provided with mounting hole.Mounting hole is set and is convenient to install sealing joint strip.
For reaching another above-mentioned purpose, the elevator door sealing rubber strip manufacturing process comprises forming mould and utilizes the manufacturing process of described forming mould molding elevator door sealing rubber strips; Described forming mould comprises front mould and rear mold; In front mould, have rigid plastic and hold pond, front mould is provided with rigid plastic and holds the rigid plastic pressure injection passage that pond is communicated with; In rear mold, be provided with the installation sheet forming cavity, the front end of installation sheet forming cavity holds pond with rigid plastic and is communicated with, the rear end of installation sheet forming cavity is provided with the outlet of elevator door sealing rubber strip, the outside that is positioned at the installation sheet forming cavity in rear mold is provided with the sealing head forming cavity communicated with the installation sheet forming cavity, in the sealing head forming cavity, be provided with the core rod for the forming damping hole, rear mold is provided with the nonrigid plastic be communicated with the sealing head forming cavity and holds pond, and rear mold is provided with nonrigid plastic holds the nonrigid plastic pressure injection passage that pond is communicated with.Utilize the manufacturing technology steps of above-mentioned forming mould molding elevator door sealing rubber strips as follows: by rigid plastic pressure injection passage continuous to rigid plastic, hold pressure injection rigid plastic in pond, simultaneously by nonrigid plastic pressure injection passage continuous to nonrigid plastic, hold pressure injection nonrigid plastic in pond, in continuous pressure injection rigid plastic and nonrigid plastic process, rigid plastic is extruded in the installation sheet forming cavity, nonrigid plastic is extruded in the sealing head forming cavity simultaneously, at the junction rigid plastic of installation sheet forming cavity and sealing head forming cavity, with nonrigid plastic, be connected and form the elevator door sealed film and be extruded from outlet, then, customized cut-off forms elevator door sealing rubber strip, wherein, shock relieve vent is by the core rod self-assembling formation.
Above-mentioned forming mould simple in structure, permissible accuracy is not high, and therefore, the cost that manufactures mould is low; Above-mentioned forming process, by rigid plastic and nonrigid plastic simultaneously pressure injection in mould and extrusion molding get final product, with respect to prior art, do not need rigid plastic to be embedded in skeleton, therefore, simplify the manufacturing process of moulding sealing joint strip, reduce manufacturing cost, improve the Forming Quality of sealing joint strip.
As improvement, described rear mold comprises rear mould body and is located at the back shield of rear mould body rear end; Described outlet is located on back shield.Described back shield, for stopping up the refrigerant fluid of cooling chamber, prevents the refrigerant fluid leakage, also is convenient to the processing to cooling chamber.
As improvement, the back segment of rear mould body is positioned at the outer cooling chamber that is arranged with of installation sheet forming cavity and sealing head forming cavity, and cooling chamber has water inlet and the water outlet be in communication with the outside.Described cooling chamber is for the splendid attire refrigerant fluid, cooling to realize the seal strip that is about to be extruded moulding is carried out, and improves the Forming Quality of seal strip.
As improvement, at the leading section of rear mould body, be provided with the core rod adapter plate, an end of core rod is fixed on the core rod adapter plate, and the other end of core rod is across the sealing head forming cavity; Described nonrigid plastic holds pond and is formed by rear mould body and core rod adapter plate.The core rod adapter plate is set, and one conveniently is convenient to the Assembly &Disassembly core rod, is convenient on the other hand process nonrigid plastic and holds pond.
As improvement, described rigid plastic pressure injection passage comprises rigid plastic pressure injection mouth interface and rigid plastic runner, and the rigid plastic runner holds between pond at rigid plastic pressure injection mouth interface and rigid plastic; Described nonrigid plastic pressure injection passage comprises nonrigid plastic pressure injection mouth interface and nonrigid plastic runner, and the nonrigid plastic runner holds between pond at nonrigid plastic pressure injection mouth interface and nonrigid plastic.Rigid plastic pressure injection mouth interface is set and nonrigid plastic pressure injection mouth interface is convenient to make mould to dock with external device, guarantees carrying out smoothly of pressure injection rigid plastic and nonrigid plastic.
The accompanying drawing explanation
Fig. 1 is the die structure dwg of moulding the first embodiment elevator door sealing rubber strip.
Fig. 2 is the constructional drawing of the elevator door sealing rubber strip of the first embodiment.
Fig. 3 is the die structure dwg of moulding the second embodiment elevator door sealing rubber strip.
Fig. 4 is the constructional drawing of the elevator door sealing rubber strip of the second embodiment.
Fig. 5 is mold insert structure figure in the second embodiment forming mould.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.
The first embodiment.
The elevator door sealing rubber strip of the forming mould moulding that utilizes present embodiment as shown in Figure 2, comprise by the installation sheet 1 of rigid plastic moulding and the sealing head 2 be connected with installation sheet 1 one ends.Installation sheet 1 is comprised of installation portion 11 and connecting portion 12, and wherein the cross section of installation portion 11 is less than the cross section of connecting portion 11, and installation portion 11 and connecting portion 12 are L-shaped, on installation portion 11, are processed with mounting hole 3, is convenient to elevator door sealing rubber strip is installed on elevator door, described sealing head 2 has a sealing surface 21, on sealing head 2, have the axis shock relieve vent parallel with sealing surface 4, on sealing head 2, be positioned at the side contacted with elevator door and be formed with protrusion 22, when being installed to sealing joint strip on elevator door, protrusion 22 deforms, between sealing joint strip and elevator door, produce squeese pressure and can not produce gap, the steadiness that sealing joint strip is fixed on elevator door is good, in addition, when the fastener be used to sealing joint strip is installed occurs to become flexible, because protrusion 22 has rebound action, also can guarantee sealing joint strip and elevator door close contact.In the present embodiment, the material that installation sheet 1 is used is rigid PVC, and the material that sealing head 2 is used is flexible PVC.
As shown in Figure 1, forming mould comprises front mould 5 and rear mold 6.In front mould 5, be provided with rigid plastic and hold pond 511, front mould 5 is provided with rigid plastic and holds the rigid plastic pressure injection passage 512 that pond 511 is communicated with, rigid plastic pressure injection passage 512 comprises rigid plastic pressure injection mouth interface 5121 and rigid plastic runner 5122, rigid plastic runner 5122 holds between pond 511 at rigid plastic pressure injection mouth interface 5121 and rigid plastic, rigid plastic pressure injection mouth interface 5121 is hickey, be convenient to be connected with external device, guarantee that the pressure injection rigid plastic carries out smoothly, rear mold 52 comprises rear mould body 521 and by fastener, is fixed on the back shield 522 of rear mould body 521 rear ends, in rear mould body 521, be provided with installation sheet forming cavity 5211, installation sheet forming cavity 5211 front and back connect, the front end of installation sheet forming cavity 5211 holds pond 511 with rigid plastic and is communicated with, the rear end that is positioned at installation sheet forming cavity 5211 on back shield 522 is provided with the outlet 53 of elevator door sealing rubber strip, the upside that is positioned at installation sheet forming cavity 5211 in rear mould body 521 is provided with the sealing head forming cavity 5212 communicated with the installation sheet forming cavity, leading section at rear mould body 521 is fixed with core rod adapter plate 54, on core rod adapter plate 54, be fixed with core rod 55, one end of core rod 55 is across sealing head forming cavity 5212, core rod adapter plate 54 and rear mould body are formed with the nonrigid plastic be communicated with the sealing head forming cavity and hold pond 5213, rear mould body 521 is provided with nonrigid plastic and holds the nonrigid plastic pressure injection passage 5214 that pond is communicated with, nonrigid plastic pressure injection passage 5214 comprises nonrigid plastic pressure injection mouth interface 52141 and nonrigid plastic runner 52142, nonrigid plastic runner 52142 holds between pond 5213 at nonrigid plastic pressure injection mouth interface 52141 and nonrigid plastic, described nonrigid plastic pressure injection mouth interface 52141 is hickey, be convenient to be connected with external device, guarantee that the pressure injection nonrigid plastic carries out smoothly.As shown in Figure 1, the back segment of rear mould body 521 is positioned at the outer cooling chamber 56 that is arranged with of installation sheet forming cavity and sealing head forming cavity, cooling chamber has water inlet 561 and the water outlet 562 be in communication with the outside, described water inlet 561 is opened on back shield, water outlet 562 is opened on rear mould body, back shield, owing to stopping up cooling chamber 56, guarantees that refrigerant fluid only flows out from water outlet, prevents the leakage of refrigerant fluid.
Utilize the manufacturing technology steps of above-mentioned forming mould molding elevator door sealing rubber strips as follows: will with rigid plastic pressure injection mouth interface 5121, be connected for the external device of pressure injection rigid PVC, to with nonrigid plastic pressure injection mouth interface 52141, be connected for the external device of pressure injection flexible PVC simultaneously, by external device through the rigid plastic runner continuous to rigid plastic, hold pressure injection rigid PVC in pond, simultaneously by external device through the nonrigid plastic runner continuous to nonrigid plastic, hold pressure injection flexible PVC in pond, in continuous pressure injection rigid PVC and flexible PVC process, rigid PVC is extruded in installation sheet forming cavity 5211, flexible PVC is extruded in sealing head forming cavity 5212 simultaneously, at the junction rigid PVC of installation sheet forming cavity 5211 and sealing head forming cavity 5212, with flexible PVC, be connected and form the elevator door sealed film and be extruded from exporting 53, wherein, shock relieve vent is by core rod 55 self-assembling formations, then, customized cut-off forms elevator door sealing rubber strip.The elevator door sealed film, in forming process, passes into refrigerant fluid to water inlet 561, and the refrigerant fluid passed into carries out cooling to the elevator door sealed film after entering in cooling chamber, and to improve the quality of moulding, the refrigerant fluid entered in cooling chamber flows out finally by water outlet.
The sealing joint strip of present embodiment, due to installation sheet 1 only by the rigid plastic moulding, when the forming seal adhesive tape, by rigid plastic and nonrigid plastic simultaneously pressure injection in mould and extrusion molding get final product, with respect to prior art, do not need rigid plastic to be embedded in skeleton, therefore, simplify the technique of moulding, reduced the cost of moulding; In addition, owing to being provided with shock relieve vent 4, like this, sealing head distortion trailing portion material has been filled in shock relieve vent, therefore, the deflection of sealing head can be very large, good damping effect, and, after squeese pressure was cancelled, the screen resilience of sealing head was also large, for extruding antidetonation has next time been established basis preferably.
The second embodiment.
The elevator door sealing rubber strip of the forming mould moulding that utilizes present embodiment as shown in Figure 4, comprise by the installation sheet 1 of rigid plastic moulding and the sealing head 2 be connected with installation sheet 1 one ends.Installation sheet 1 is comprised of installation portion 11 and connecting portion 12, and wherein the cross section of installation portion 11 is less than the cross section of connecting portion 11, and installation portion 11 and connecting portion 12 are L-shaped, on installation portion 11, are processed with mounting hole 3, is convenient to elevator door sealing rubber strip is installed on elevator door, described sealing head 2 has a sealing surface 21, on sealing head 2, have the axis shock relieve vent parallel with sealing surface 4, on sealing head 2, be positioned at the side contacted with elevator door and be formed with protrusion 22, when being installed to sealing joint strip on elevator door, protrusion 22 deforms, between sealing joint strip and elevator door, produce squeese pressure and can not produce gap, the steadiness that sealing joint strip is fixed on elevator door is good, in addition, when the fastener be used to sealing joint strip is installed occurs to become flexible, because protrusion 22 has rebound action, also can guarantee sealing joint strip and elevator door close contact, on connecting portion 12, be provided with dovetail furrow 121 with the sealing head junction, on sealing head, be provided with holding to the jut 23 in dovetail furrow, like this, being connected firmly of installation sheet and sealing head, improved the service life of elevator door sealing rubber strip.In the present embodiment, the material that installation sheet 1 is used is rigid PVC, and the material that sealing head 2 is used is flexible PVC.
As shown in Figure 3, forming mould comprises front mould 5 and rear mold 6.In front mould 5, be provided with rigid plastic and hold pond 511, front mould 5 is provided with rigid plastic and holds the rigid plastic pressure injection passage 512 that pond 511 is communicated with, rigid plastic pressure injection passage 512 comprises rigid plastic pressure injection mouth interface 5121 and rigid plastic runner 5122, rigid plastic runner 5122 holds between pond 511 at rigid plastic pressure injection mouth interface 5121 and rigid plastic, rigid plastic pressure injection mouth interface 5121 is hickey, be convenient to be connected with external device, guarantee that the pressure injection rigid plastic carries out smoothly, rear mold 52 comprises rear mould body 521 and by fastener, is fixed on the back shield 522 of rear mould body 521 rear ends, in rear mould body 521, be provided with installation sheet forming cavity 5211, installation sheet forming cavity 5211 front and back connect, the front end of installation sheet forming cavity 5211 holds pond 511 with rigid plastic and is communicated with, the rear end that is positioned at installation sheet forming cavity 5211 on back shield 522 is provided with the outlet 53 of elevator door sealing rubber strip, the upside that is positioned at installation sheet forming cavity 5211 in rear mould body 521 is provided with the sealing head forming cavity 5212 communicated with the installation sheet forming cavity, leading section at rear mould body 521 is fixed with core rod adapter plate 54, on core rod adapter plate 54, be fixed with core rod 55, one end of core rod 55 is across sealing head forming cavity 5212, core rod adapter plate 54 and rear mould body are formed with the nonrigid plastic be communicated with the sealing head forming cavity and hold pond 5213, as shown in Figure 5, on the bottom surface of core rod adapter plate, be provided with the projection 541 of moulding dovetail furrow, rear mould body 521 is provided with nonrigid plastic and holds the nonrigid plastic pressure injection passage 5214 that pond is communicated with, nonrigid plastic pressure injection passage 5214 comprises nonrigid plastic pressure injection mouth interface 52141 and nonrigid plastic runner 52142, nonrigid plastic runner 52142 holds between pond 5213 at nonrigid plastic pressure injection mouth interface 52141 and nonrigid plastic, described nonrigid plastic pressure injection mouth interface 52141 is hickey, be convenient to be connected with external device, guarantee that the pressure injection nonrigid plastic carries out smoothly.As shown in Figure 1, the back segment of rear mould body 521 is positioned at the outer cooling chamber 56 that is arranged with of installation sheet forming cavity and sealing head forming cavity, cooling chamber has water inlet 561 and the water outlet 562 be in communication with the outside, described water inlet 561 is opened on back shield, water outlet 562 is opened on rear mould body, back shield, owing to stopping up cooling chamber 56, guarantees that refrigerant fluid only flows out from water outlet, prevents the leakage of refrigerant fluid.
Utilize the manufacturing technology steps of above-mentioned forming mould molding elevator door sealing rubber strips as follows: will with rigid plastic pressure injection mouth interface 5121, be connected for the external device of pressure injection rigid PVC, to with nonrigid plastic pressure injection mouth interface 52141, be connected for the external device of pressure injection flexible PVC simultaneously, by external device through the rigid plastic runner continuous to rigid plastic, hold pressure injection rigid PVC in pond, simultaneously by external device through the nonrigid plastic runner continuous to nonrigid plastic, hold pressure injection flexible PVC in pond, in continuous pressure injection rigid PVC and flexible PVC process, rigid PVC is extruded in installation sheet forming cavity 5211, flexible PVC is extruded in sealing head forming cavity 5212 simultaneously, at the junction rigid PVC of installation sheet forming cavity 5211 and sealing head forming cavity 5212, with flexible PVC, be connected and form the elevator door sealed film and be extruded from exporting 53, wherein, shock relieve vent is by core rod 55 self-assembling formations, then, customized cut-off forms elevator door sealing rubber strip.The elevator door sealed film, in forming process, passes into refrigerant fluid to water inlet 561, and the refrigerant fluid passed into carries out cooling to the elevator door sealed film after entering in cooling chamber, and to improve the quality of moulding, the refrigerant fluid entered in cooling chamber flows out finally by water outlet.
The sealing joint strip of present embodiment, due to installation sheet 1 only by the rigid plastic moulding, when the forming seal adhesive tape, by rigid plastic and nonrigid plastic simultaneously pressure injection in mould and extrusion molding get final product, with respect to prior art, do not need rigid plastic to be embedded in skeleton, therefore, simplify the technique of moulding, reduced the cost of moulding; In addition, owing to being provided with shock relieve vent 4, like this, sealing head distortion trailing portion material has been filled in shock relieve vent, therefore, the deflection of sealing head can be very large, good damping effect, and, after squeese pressure was cancelled, the screen resilience of sealing head was also large, for extruding antidetonation has next time been established basis preferably.
In addition, the front end occurred in the present invention refers to the left end of Fig. 1 and Fig. 3, and rear end refers to the right-hand member of Fig. 1 and Fig. 3.
Claims (5)
1. elevator door sealing rubber strip manufacturing process is characterized in that: comprise forming mould and utilize the manufacturing process of described forming mould molding elevator door sealing rubber strips;
Described forming mould comprises front mould and rear mold; In front mould, have rigid plastic and hold pond, front mould is provided with rigid plastic and holds the rigid plastic pressure injection passage that pond is communicated with; In rear mold, be provided with the installation sheet forming cavity, the front end of installation sheet forming cavity holds pond with rigid plastic and is communicated with, the rear end of installation sheet forming cavity is provided with the outlet of elevator door sealing rubber strip, the outside that is positioned at the installation sheet forming cavity in rear mold is provided with the sealing head forming cavity communicated with the installation sheet forming cavity, in the sealing head forming cavity, be provided with the core rod for the forming damping hole, rear mold is provided with the nonrigid plastic be communicated with the sealing head forming cavity and holds pond, and rear mold is provided with nonrigid plastic holds the nonrigid plastic pressure injection passage that pond is communicated with;
Utilize the manufacturing technology steps of above-mentioned forming mould molding elevator door sealing rubber strips as follows: by rigid plastic pressure injection passage continuous to rigid plastic, hold pressure injection rigid plastic in pond, simultaneously by nonrigid plastic pressure injection passage continuous to nonrigid plastic, hold pressure injection nonrigid plastic in pond, in continuous pressure injection rigid plastic and nonrigid plastic process, rigid plastic is extruded in the installation sheet forming cavity, nonrigid plastic is extruded in the sealing head forming cavity simultaneously, at the junction rigid plastic of installation sheet forming cavity and sealing head forming cavity, with nonrigid plastic, be connected and form the elevator door sealed film and be extruded from outlet, then, customized cut-off forms elevator door sealing rubber strip, wherein, shock relieve vent is by the core rod self-assembling formation.
2. elevator door sealing rubber strip manufacturing process according to claim 1 is characterized in that: described rear mold comprises rear mould body and is located at the back shield of rear mould body rear end; Described outlet is located on back shield.
3. elevator door sealing rubber strip manufacturing process according to claim 2, it is characterized in that: the back segment of rear mould body is positioned at the outer cooling chamber that is arranged with of installation sheet forming cavity and sealing head forming cavity, and cooling chamber has water inlet and the water outlet be in communication with the outside.
4. elevator door sealing rubber strip manufacturing process according to claim 2, it is characterized in that: the leading section at rear mould body is provided with the core rod adapter plate, and an end of core rod is fixed on the core rod adapter plate, and the other end of core rod is across the sealing head forming cavity; Described nonrigid plastic holds pond and is formed by rear mould body and core rod adapter plate.
5. elevator door sealing rubber strip manufacturing process according to claim 1, it is characterized in that: described rigid plastic pressure injection passage comprises rigid plastic pressure injection mouth interface and rigid plastic runner, and the rigid plastic runner holds between pond at rigid plastic pressure injection mouth interface and rigid plastic; Described nonrigid plastic pressure injection passage comprises nonrigid plastic pressure injection mouth interface and nonrigid plastic runner, and the nonrigid plastic runner holds between pond at nonrigid plastic pressure injection mouth interface and nonrigid plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100765103A CN102153011B (en) | 2011-03-29 | 2011-03-29 | Manufacturing process of sealing adhesive tape for elevator door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100765103A CN102153011B (en) | 2011-03-29 | 2011-03-29 | Manufacturing process of sealing adhesive tape for elevator door |
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| CN102153011A CN102153011A (en) | 2011-08-17 |
| CN102153011B true CN102153011B (en) | 2013-11-27 |
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| CN2011100765103A Expired - Fee Related CN102153011B (en) | 2011-03-29 | 2011-03-29 | Manufacturing process of sealing adhesive tape for elevator door |
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| IT983788B (en) * | 1972-05-17 | 1974-11-11 | Braun Gmbh P | ORNAMENTAL STRIP AND BUMPER |
| JP2693622B2 (en) * | 1990-05-07 | 1997-12-24 | 株式会社東芝 | Elevator door equipment |
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| JP2006021517A (en) * | 2004-06-09 | 2006-01-26 | Mitsuboshi Belting Ltd | Manufacturing method of two-layered rubber molded body |
| JP5036185B2 (en) * | 2006-01-17 | 2012-09-26 | 東芝エレベータ株式会社 | Elevator landing door equipment |
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2011
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| US4531326A (en) * | 1983-01-06 | 1985-07-30 | S.A.I.A.G. S.P.A. | Extruded weather strip for motor vehicle bodies and an extrusion head for forming the weather strip |
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| CN200967268Y (en) * | 2006-11-14 | 2007-10-31 | 上海杰瑞挤出系统工程有限公司 | Plastic section bar surface coextruding mould |
| CN202007072U (en) * | 2011-03-29 | 2011-10-12 | 广州花都通用集团有限公司 | Sealing rubber strip for elevator door |
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Also Published As
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|---|---|
| CN102153011A (en) | 2011-08-17 |
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