CN210820652U - Multi-channel injection mold - Google Patents
Multi-channel injection mold Download PDFInfo
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- CN210820652U CN210820652U CN201921686318.4U CN201921686318U CN210820652U CN 210820652 U CN210820652 U CN 210820652U CN 201921686318 U CN201921686318 U CN 201921686318U CN 210820652 U CN210820652 U CN 210820652U
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- 238000002347 injection Methods 0.000 title claims abstract description 57
- 239000007924 injection Substances 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 97
- 238000001746 injection moulding Methods 0.000 claims abstract description 85
- 239000003292 glue Substances 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims description 34
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 abstract description 29
- 239000004033 plastic Substances 0.000 abstract description 29
- 238000000465 moulding Methods 0.000 abstract description 13
- 229920001875 Ebonite Polymers 0.000 abstract description 6
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract description 4
- 239000011247 coating layer Substances 0.000 abstract description 3
- 238000010073 coating (rubber) Methods 0.000 abstract description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 104
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 104
- 239000004417 polycarbonate Substances 0.000 description 67
- 239000000110 cooling liquid Substances 0.000 description 9
- 238000009826 distribution Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a multichannel injection mold, this multichannel injection mold includes: front mould mechanism and back mould mechanism, front mould mechanism is connected with back mould mechanism, back mould mechanism has seted up a plurality of model grooves, front mould mechanism constitutes a plurality of chambeies of moulding plastics with a plurality of model grooves, front mould mechanism has TPU feedstock channel and a plurality of PC feedstock channel, each PC feedstock channel communicates with a chamber of moulding plastics respectively, PC feedstock channel is used for letting in PC ebonite in order to form the product inlayer to the chamber of moulding plastics, TPU feedstock channel has a plurality of TPU branch feedstock channel, communicate each other between a plurality of TPU branch feedstock channel, each TPU branch feedstock channel communicates with a chamber of moulding plastics respectively, TPU feedstock channel is used for letting in the TPU flexible glue in order to form the outside rubber coating layer in the product inlayer to the chamber of moulding plastics. Above-mentioned multichannel injection mold through double-colored injection moulding, improves the quality of earplug, through PC feedstock channel and TPU feedstock channel, realizes the one shot forming of ebonite and flexible glue, has reduced the machine-shaping cycle of earplug, has improved production efficiency.
Description
Technical Field
The utility model relates to the technical field of mold, especially, relate to a multichannel injection mold.
Background
The injection molding of the mold is to inject the plastic raw material which is melted by heating into the mold cavity of the plastic mold by the screw of the injection molding machine under high pressure, and the plastic molding product is obtained after cooling and solidification. The mold injection molding comprises single-color injection molding and double-color injection molding, wherein the single-color injection molding is an operation method of plasticizing one color of plastic by a charging barrel and then performing injection molding by a nozzle, and the double-color injection molding is an operation method of plasticizing the same two colors of plastic by two charging barrels and then performing injection molding by the same nozzle.
However, most of the traditional single-color injection molding and double-color injection molding only have a single injection molding channel, the single injection molding channel causes low processing efficiency of products, the double-color injection molding needs to perform a secondary molding process, the injection molding processing technology is complex, the production cost is high, in the processing industry of earplugs, the traditional earplug processing method mainly uses single-color molding ebonite which is mainly embedded in secondary injection molding soft rubber, the forming cycle of the two processing processes is long, the labor cost is high, the production efficiency is low, meanwhile, the surface hardness of the earplugs is high, and the quality of the products is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide a multi-channel injection mold for solving the technical problems of low production efficiency and low product quality.
The utility model provides a multichannel injection mold, this multichannel injection mold includes front mould mechanism and back mould mechanism, front mould mechanism is connected with back mould mechanism, back mould mechanism has seted up a plurality of mould types groove, front mould mechanism constitutes a plurality of injection molding chambeies with a plurality of model grooves, a plurality of injection molding chambeies are used for accepting hydrothermal solution and to hydrothermal fluid shaping, front mould mechanism has TPU feedstock channel and a plurality of PC feedstock channel, each PC feedstock channel communicates with an injection molding chamber respectively, PC feedstock channel is used for letting in PC ebonite in order to form the product inlayer to the injection molding chamber, TPU feedstock channel has a plurality of TPU branch feedstock channel, communicate each other between a plurality of TPU branch feedstock channel, each TPU branch feedstock channel communicates with an injection molding chamber respectively, TPU feedstock channel is used for letting in the TPU flexible glue in order to form the outside rubber coating layer of product inlayer to the injection molding chamber.
In one embodiment, the multi-channel injection mold comprises a connecting mechanism, one end of the connecting mechanism is connected with the front mold mechanism, and the other end of the connecting mechanism is connected with the rear mold mechanism.
In one embodiment, the multi-channel injection mold further comprises a plurality of positioning rods, and the positioning rods are vertically inserted into the front mold mechanism and the rear mold mechanism.
In one embodiment, the front mold mechanism comprises a first front mold block, a second front mold block and a front mold core, the first front mold block, the second front mold block and the front mold core are sequentially connected in a stacking manner, the rear mold mechanism comprises a rear mold core, a first rear mold block and a second rear mold block, the rear mold core, the first rear mold block and the second rear mold block are sequentially connected in a stacking manner, and the front mold core is connected with the rear mold core.
In one embodiment, the plurality of PC feeding channels all penetrate the first front module, the second front module and the front mold core, the TPU feeding channel penetrates the first front module and the second front module, and the plurality of TPU branch feeding channels penetrate the front mold core.
In one embodiment, the plurality of molding grooves are formed in the rear mold core, and the front mold core and the plurality of molding grooves form a plurality of injection molding cavities.
In one embodiment, the second front module is provided with a plurality of PC feed columns and a plurality of support blocks, each PC feed column being disposed on a support.
In one embodiment, the second front module is provided with a TPU liquid injection pipe, the front mold core is provided with a first TPU liquid separation groove, and a pipe orifice of the TPU liquid injection pipe faces the first TPU liquid separation groove.
In one embodiment, the PC feeding column is provided with a PC feeding hole, and the TPU liquid injection pipe is provided with a TPU feeding hole.
In one embodiment, the multi-channel injection mold further comprises a plurality of cooling liquid channels, and each cooling liquid channel penetrates through the front mold core and the rear mold core.
Above-mentioned multichannel injection mold carries out earplug processing through double-colored injection moulding's mode, the quality of earplug has been improved, simultaneously through seting up PC feedstock channel and TPU feedstock channel, make PC material and TPU material successively feed, realize the one shot forming of ebonite and flexible glue, the machine-shaping cycle and the processing cost of earplug have been reduced, set up a plurality of PC feedstock channels and a plurality of TPU branch feedstock channel simultaneously, realize the simultaneous processing of a plurality of products, in order to improve production efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a multi-channel injection mold in one embodiment;
FIG. 2 is another schematic structural view of a multi-channel injection mold according to an embodiment;
FIG. 3 is a schematic diagram of a partial enlarged structure of the multi-channel injection mold in the embodiment of FIG. 2;
FIG. 4 is a schematic view of still another structure of the multi-channel injection mold in one embodiment;
FIG. 5 is a schematic diagram of a front mold insert according to an embodiment;
FIG. 6 is a schematic diagram of the construction of the post injection mold piece in one embodiment;
FIG. 7 is a cross-sectional structural view of a front injection block in one embodiment;
FIG. 8 is a partial schematic view of a coupling mechanism according to one embodiment.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Referring to fig. 1, 2, 3 and 7, the present invention provides a multi-channel injection mold 10, which includes a front mold mechanism 100 and a rear mold mechanism 200, the front mold mechanism 100 is connected to the rear mold mechanism 200, the rear mold mechanism 200 is provided with a plurality of mold grooves 210, the front mold mechanism 100 and the mold grooves 210 form a plurality of injection molding cavities 300, the injection molding cavities 300 are used for receiving hot liquid and forming the hot liquid, the front mold mechanism 100 has a TPU (Thermoplastic polyurethane elastomer rubber) feed channel 400 and a plurality of PC (Polycarbonate) feed channels 500, each PC feed channel 500 is respectively communicated with one injection molding cavity 300, the PC feed channel 500 is used for introducing PC hard glue into the injection molding cavity 300 to form a product inner layer, the TPU feed channel 400 has a plurality of TPU branch feed channels 410, the plurality of TPU branch feed channels 410 are communicated with each other, each TPU branch feed channel 410 is respectively communicated with one injection molding cavity 300, the TPU feed channel 400 is used for introducing TPU soft rubber into the injection molding cavity 300 to form an encapsulating layer outside the inner layer of the product.
Above-mentioned multichannel injection mold 10, carry out earplug processing through double-colored injection moulding's mode, the quality of earplug has been improved, simultaneously through seting up PC feedstock channel 500 and TPU feedstock channel 400, make PC material and TPU material earlier afterwards to give the moulding in the chamber 300 of moulding plastics, realize the one shot forming of ebonite and flexible glue, the machine-shaping cycle and the processing cost of earplug have been reduced, set up a plurality of PC feedstock channel 500 and a plurality of TPU branch feedstock channel 410 simultaneously, realize the simultaneous processing of a plurality of products, in order to improve production efficiency.
The working principle of the multi-channel injection mold is as follows: when the earplug is injected, molten PC plastic glue is introduced into the plurality of PC feeding channels 500 of the front mold mechanism 100, the PC plastic glue flows through the PC feeding channels 500 of the front mold mechanism 100 and finally flows into the injection molding cavity 300 to be gradually hardened into an inner layer of the product, the molten TPU plastic glue is introduced into the TPU feeding channel 400 of the front mold mechanism 100, the TPU plastic glue flows through the TPU feeding channels 400 of the front mold mechanism 100 and the plurality of TPU branch feeding channels 410 and finally flows into the injection molding cavity 300 to be gradually hardened to form an encapsulating layer outside the inner layer of the product.
The front mold mechanism 100 is a die structure of a multi-channel injection mold and is arranged on a movable template of an injection molding machine, the rear mold mechanism 200 is a fixed mold structure of the multi-channel injection mold and is arranged on a fixed template of the injection molding machine, after the front mold mechanism 100 and the rear mold mechanism 200 are combined, the front mold mechanism 100 is used for forming earplug products through injection molding, a PC feeding channel 500 and a TPU feeding channel 400 are arranged in the front mold mechanism 100, compared with the traditional single-channel injection molding mode, the multi-channel injection molding improves the injection molding efficiency, the defect that the rotation of the front mold mechanism 100 is converted into the mold for secondary injection molding after injection molding is avoided, one-time injection molding is realized, PC plastic glue solution flows through the whole front mold mechanism 100 through the PC feeding channel 500, TPU plastic glue solution flows through the whole front mold mechanism 100 through the TPU feeding channel 400 and a plurality of TPU branch feeding channels 410, namely the front mold mechanism 100 is, the PC feeding channel 500 and the TPU branch feeding channel 410 are plural, and can be divided into plural feeding zones for injection molding according to the number of injection molded products, for example, the front mold mechanism 100 is provided with a first PC feeding zone, a second PC feeding zone and a TPU feeding zone, the TPU feeding zone is arranged between the first PC feeding zone and the second PC feeding zone, the first PC feeding zone comprises plural first PC feeding channels, the second PC feeding zone comprises plural second PC feeding channels, the TPU feeding zone comprises plural first TPU feeding channels and plural second TPU feeding channels, so as to improve the injection molding efficiency of the products, the TPU feeding zone is divided into a first TPU feeding channel and a second TPU feeding channel after being fed by the TPU, the first TPU feeding channel and the first PC feeding zone form an integral first injection molding zone, the second TPU feeding channel and the second PC feeding zone form another integral second injection molding zone, so as to facilitate the injection molding of plural molds at the same time, it is worth mentioning that the stamping dies of the first injection molding area and the second injection molding area are in central symmetry, so that the circulation molding of plastic glue solution is facilitated. The rear mold mechanism 200 is provided with a mold groove 210, and the plastic glue solution is shaped in the mold groove 210 to form a product, namely the rear mold mechanism 200 is a fixed mold product of each plastic glue solution in the injection molding process.
Referring to fig. 1, in an embodiment, the front mold mechanism 100 includes a first front mold block 110, a second front mold block 120 and a front mold core 130, the first front mold block 110, the second front mold block 120 and the front mold core 130 are sequentially stacked and connected, the rear mold mechanism 200 includes a rear mold core 220, a first rear mold block 230 and a second rear mold block 240, the rear mold core 220, the first rear mold block 230 and the second rear mold block 240 are sequentially stacked and connected, and the front mold core 130 is connected to the rear mold core 220. That is, the first front module 110, the second front module 120, the front mold core 130, the rear mold core 220, the first rear module 230 and the second rear module 240 are sequentially stacked and connected to form a complete injection mold, the first front module 110 is connected to an injection molding machine, the first front module 110 is provided with a plurality of feed ports, such as a PC feed port and a TPU feed port, the injection molding machine injects corresponding plastic glue through the PC feed port and the TPU feed port of the first front module 110, so that the PC plastic glue flows through the PC feed channel 500 for forming, the TPU plastic glue 400 flows through the TPU feed channel for forming, the plurality of PC feed channels 500 all penetrate through the first front module 110, the second front module 120 and the front mold core 130, i.e. the PC glue flows through the first front module 110, the second front module 120 and the front mold core 130 through the plurality of PC feed channels 500 and then flows into the plurality of injection molding cavities 300 to form a hard glue inner layer of the earplug product, the TPU feeding channel 400 penetrates through the first front mold block 110 and the second front mold block 120, the plurality of TPU branch feeding channels 410 penetrate through the front mold core 130, i.e. TPU glue flows through the first front mold block 110 and the second front mold block 120 through the TPU feeding channel 400 and then flows into the plurality of TPU branch feeding channels 410, the TPU glue flows through the front mold core 130 through the plurality of TPU branch feeding channels 410 and then flows into the plurality of injection molding cavities 300 to form a soft glue coating layer outside a hard glue inner layer of an earplug product, thereby completing the injection molding of the whole earplug product, the injection molding cavities 300 formed by the front mold core 130 and the rear mold core 220 are important producers for molding the plastic glue into the product, specifically, the mold type grooves on the rear mold mechanism 200 and the front mold core form the injection molding cavities 300, the plurality of mold type grooves 210 are arranged on the rear mold core 220, i.e. the front mold core 130 and the plurality of mold type grooves 210 form the plurality of injection molding cavities 300, and the second front mold block 120 plays a role in, the first rear module 230 and the second rear module 240 are provided with a thimble mechanism 250, and the thimble mechanism 250 ejects the injection-molded earplug product.
Referring to fig. 2-4, in one embodiment, the second front module 120 is provided with a plurality of PC feed columns 121 and a plurality of support blocks 122, each PC feed column 121 being disposed on a support block 122. The PC feeding column 121 and the supporting block 122 are both provided with PC feeding holes, one end of the PC feeding column 121 is connected with the first front module 110, the other end is connected with the supporting block 122, the PC feeding hole 123 of the PC feeding column 121 is aligned with the PC feeding hole (not shown) of the supporting block 122, the PC feeding hole 123 of the PC feeding column 121 is aligned with the PC feeding through hole of the first front module 110, the PC feeding hole 123 of the PC feeding column 121 and the PC feeding hole of the supporting block 122 form a PC feeding channel 500, the PC feeding channel 500 is communicated with the injection molding cavity 300, so that the PC plastic glue solution can enter the multi-channel injection molding mold 10 conveniently, that is, the PC plastic glue solution enters the injection molding cavity 300 through the first front module 110, the PC feeding column 121 and the supporting block 122, the supporting block 122 facilitates the PC glue solution to flow to the mold 210 in a turning manner, it is worth mentioning that the feeding through, the second front mold 120 is formed with a through hole, a sidewall of the supporting block 122 is connected to a sidewall of the through hole of the second front mold 120, a bottom of the supporting block 122 is connected to one surface of the front mold core 130, one end of the PC feeding column 121 is connected to a sidewall portion of the feeding through hole of the first front mold 110, and the other end of the PC feeding column 121 is connected to a sidewall portion of the through hole of the second front mold 120.
Referring to fig. 4 to 7, in an embodiment, the second front mold 120 is provided with a TPU injection pipe 124, the front mold core 130 is provided with a first TPU liquid separating groove 131, and a pipe orifice of the TPU injection pipe 124 faces the first TPU liquid separating groove 131. One end of the TPU liquid injection pipe 124 is provided with a TPU feed inlet 125, the other end is inserted into the first TPU liquid distribution groove 131, the TPU feed inlet 125 facilitates feeding TPU plastic liquid into the multi-channel injection mold 10, the first TPU liquid distribution groove 131 facilitates equally distributing the TPU plastic liquid in the first injection region and the second injection region, the front mold core 130 is provided with two TPU channels 133, the two TPU channels 133 on the front mold core 130 are arranged at two ends of the first TPU liquid distribution groove 131 and are communicated with the first TPU liquid distribution groove 131, it is worth mentioning that the TPU feed inlet 125 and the first TPU liquid distribution groove 131 form a TPU feed channel 400, the TPU feed channel 400 is divided into two TPU channels 133 by the first TPU liquid distribution groove, the rear injection molding block 221 is provided with second TPU liquid distribution grooves 222 and injection molding through holes 223, the number of the second TPU liquid distribution grooves 222 is two and are respectively arranged at two sides of the injection through holes 223, the two TPU channels 133 respectively correspond to the two second TPU liquid distribution grooves 222, namely, a TPU channel 133 is communicated with a second TPU liquid separating groove 222, the second TPU liquid separating groove 222 has a plurality of branches, namely, the plurality of branches of the second TPU liquid separating groove 222 are a plurality of TPU branch feeding channels 410, the plurality of TPU branch feeding channels 410 are communicated with the second TPU liquid separating groove 222, the plurality of TPU branch feeding channels 410 are communicated with a plurality of injection molding cavities 300, a TPU liquid injection pipe 124 introduces plastic glue into a first TPU liquid separating groove 131, the first TPU liquid separating groove 131 equally divides the glue into two TPU channels 133 on a front mold core 130, the two TPU channels 133 on the front mold core 130 are communicated with the second TPU liquid separating groove 222, the glue flows into the second TPU liquid separating groove 222 through the two TPU channels 133 on the second front mold core 130, then flows into the plurality of TPU branch feeding channels 410, and further flows into the injection molding cavities 300, it is worth mentioning that every two TPU branch feeding channels 410 flow into the mold grooves 210 in the same injection molding cavity 300, the mold groove 210 is connected with the rear injection molding block 221, the second upright rod 254 penetrates through the injection molding through hole 223, and the injection molding through hole 223 is convenient for the second upright rod 254 to eject a product.
Referring to fig. 4, in an embodiment, the multi-channel injection mold 10 further includes a plurality of positioning rods 140, and the positioning rods 140 are vertically inserted into the front mold mechanism 100 and the rear mold mechanism 200. The number of the positioning rods 140 is four, and the positioning rods are respectively arranged at four corners of the multi-channel injection mold 10, that is, the through holes are formed in the same axial direction of the four corners of the front mold mechanism 100 and the rear mold mechanism 200, one end of each positioning rod 140 penetrates through the whole front mold mechanism 100 and the rear mold core 220, and the other end of each positioning rod is connected with the first rear module 230, so that after the rear mold mechanism 200 ejects a product, the front mold mechanism 100 can be accurately and rapidly connected with the rear mold mechanism 200 to perform the next injection molding process.
Referring to fig. 4, in order to form the product quickly during injection molding, in one embodiment, the multi-channel injection mold 10 includes a plurality of cooling fluid channels 150, each of which penetrates through the front mold core 130 and the rear mold core 220. The plurality of cooling liquid channels 150 are arranged around the injection molding cavity 300, one end of each cooling liquid channel 150 is provided with a cooling liquid inlet 151, the other end of each cooling liquid channel 150 is provided with a cooling liquid outlet 152, and the plurality of cooling liquid inlets 151 and the plurality of cooling liquid outlets 152 are respectively arranged around the front mold core 130 and the rear mold core 220, so that the plurality of injection molding areas are rapidly cooled and molded.
Referring to fig. 2 again, in order to facilitate the removal of the injection molded product, in an embodiment, the first rear module 230 is provided with an ejector pin mechanism 250, the ejector pin mechanism 250 includes an ejector pin plate 251, a first upright rod 252, a spring 253, and a second upright rod 254, the ejector pin plate 251 is disposed on the second rear module 240, the ejector pin plate 251 is provided with a first positioning through hole and a second positioning through hole, one end of the first upright rod 252 is disposed in the first positioning through hole, one end of the second upright rod 254 is disposed in the second positioning through hole, and the spring 253 is sleeved outside the first upright rod 252. The first rear module 230 has a cavity therein, the ejector mechanisms 250 are disposed in the cavity of the first rear module 230, the ejector plate 251 is mounted on the second rear module 240, and the side edges of the ejector plate 251 are respectively connected with the first rear module 230, the number of the first upright posts 252 is four, and the first upright posts are respectively disposed at four corners of the first rear module 230, one end of each first upright post 252 is connected with the second rear module 240, the other end is connected with the rear mold core 220, each first upright post 252 is inserted into the spring 253, the spring 253 is respectively connected with the second rear module 240 and the rear mold core 220, the number of the second upright posts 254 is multiple, one end of each second upright post 254 is connected with the second rear module 240, the other end is connected with the rear injection molding block 221, and is inserted into the injection molding through hole 223 to abut against the product, when the product injection molding is completed, the rear mold core 220 and the first rear module 230 move toward the second rear module 240, the spring 253 is compressed, the second upright rod 254 jacks up the product, after the product is separated from the mold, the reaction force of the spring 253 enables the rear mold core 220 and the first rear mold block 230 to move in the direction away from the second rear mold block 240, the spring 253 is in an extended state, and one end of the second upright rod 254 is flush with the plane where the injection through hole 223 is located.
Referring to fig. 8, in an embodiment, the multi-channel injection mold 10 includes a connecting mechanism, one end of the connecting mechanism is connected to the front mold mechanism 100, and the other end of the connecting mechanism is connected to the rear mold mechanism 200. The connecting mechanism has the function of connecting the front mold mechanism 100 and the rear mold mechanism 200, the front mold mechanism 100 and the rear mold mechanism 200 are closed through the connecting mechanism to form a pouring system and an injection molding cavity 300 during injection molding, the front mold mechanism 100 and the rear mold mechanism 200 are separated through the connecting mechanism during mold opening so as to take out a plastic product, the connecting mechanism comprises a first connecting piece 610, a first sliding block 611 and a first limiting block 612, one end of the first connecting piece 610 is connected with the first front mold block 110, the other end of the first connecting piece 610 is movably abutted to the first rear mold block 230, the first sliding block 611 is slidably arranged on the first connecting piece 610, one end of the first sliding block 611 is connected with the front mold core 130, the other end of the first sliding block is connected with the rear mold core 220, the first limiting block 612 is arranged on the front mold core 130, and the first sliding block 611. The first connecting member 610 has a first limiting groove 613, the first limiting block 612 is disposed in the first limiting groove 613, the first limiting groove 613 limits the moving range of the first limiting block 612, and when the front module is separated from the rear module, the first sliding member drives the second front module 120 to move, so that the second front module 120 is far away from the first front module 110.
In one embodiment, the connecting mechanism includes a second connecting member 620, a second sliding block 621 and a second limiting block 622, one end of the second connecting member 620 is connected to the first front module 110, the other end is connected to the rear module core 220, the second sliding block 621 is slidably disposed on the second connecting rod, the second sliding block 621 is connected to the front module core 130, the second limiting block 622 is disposed on the front module core 130, and the second sliding block 621 movably abuts against the second limiting block 622. The second connecting member 620 has a second limiting groove 623, the second limiting block 622 is disposed in the second limiting groove 623, the second limiting groove 623 limits the moving range of the second limiting block 622, and when the front module and the rear module are separated, the second sliding member drives the second front module 120 to move, so that the second front module 120 is far away from the first front module 110.
In one embodiment, the moving mechanism includes a third connecting member 630 and a fourth connecting member 631, the third connecting member 630 is disposed on the front mold core 130, the fourth connecting member 631 is disposed on the rear mold core 220, and the third connecting member 630 and the fourth connecting member 631 movably abut against each other. The third connecting part 630 has a protrusion, the fourth connecting part 631 has a groove, and the protrusion of the third connecting part 630 is matched with the groove of the fourth connecting part 631, so that the front mold core 130 and the rear mold core 220 can be separated and overlapped conveniently.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A multi-channel injection mold is characterized by comprising a front mold mechanism and a rear mold mechanism, wherein the front mold mechanism is connected with the rear mold mechanism, the rear mould mechanism is provided with a plurality of mould grooves, the front mould mechanism and the mould grooves form a plurality of injection moulding cavities, the front mould mechanism is provided with a TPU feeding channel and a plurality of PC feeding channels, each PC feeding channel is respectively communicated with one injection moulding cavity, the PC feeding channel is used for introducing PC hard glue into the injection molding cavity to form an inner layer of a product, the TPU feeding channel is provided with a plurality of TPU branch feeding channels, the plurality of TPU branch feeding channels are communicated with each other, each TPU branch feeding channel is respectively communicated with one injection molding cavity, the TPU feeding channel is used for introducing TPU soft rubber into the injection molding cavity to form an encapsulating layer outside the inner layer of the product.
2. A multi-channel injection mold according to claim 1, characterized in that the multi-channel injection mold comprises a connection mechanism, one end of the connection mechanism is connected with the front mold mechanism, and the other end of the connection mechanism is connected with the rear mold mechanism.
3. The multi-channel injection mold of claim 1, further comprising a plurality of positioning rods vertically inserted in the front mold mechanism and the rear mold mechanism.
4. The multi-channel injection mold of claim 1, wherein the front mold mechanism comprises a first front mold block, a second front mold block and a front mold core, the first front mold block, the second front mold block and the front mold core are sequentially connected in a stacked manner, the rear mold mechanism comprises a rear mold core, a first rear mold block and a second rear mold block, the rear mold core, the first rear mold block and the second rear mold block are sequentially connected in a stacked manner, and the front mold core is connected with the rear mold core.
5. The multi-channel injection mold of claim 4, wherein the PC feed channels extend through the first front mold block, the second front mold block, and the front mold core, the TPU feed channels extend through the first front mold block and the second front mold block, and the TPU branch feed channels extend through the front mold core.
6. The multi-channel injection mold of claim 4, wherein the plurality of mold grooves are disposed on the back mold core, and the front mold core and the plurality of mold grooves form a plurality of injection molding cavities.
7. The multi-channel injection mold of claim 4, wherein the second front mold block is provided with a plurality of PC feed posts and a plurality of support blocks, each PC feed post being disposed on one of the support blocks.
8. The multi-channel injection mold of claim 7, wherein the second front mold block is provided with a TPU liquid injection pipe, the front mold core is provided with a first TPU liquid separation groove, and a pipe orifice of the TPU liquid injection pipe faces the first TPU liquid separation groove.
9. The multi-channel injection mold of claim 8, wherein the PC feed column is opened with a PC feed port, and the TPU injection pipe is opened with a TPU feed port.
10. The multi-channel injection mold of claim 4, further comprising a plurality of cooling fluid channels, each cooling fluid channel passing through the front mold core and the back mold core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921686318.4U CN210820652U (en) | 2019-10-10 | 2019-10-10 | Multi-channel injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114979874A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Headphones, headphone assemblies, and related methods |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114979874A (en) * | 2021-02-27 | 2022-08-30 | 华为技术有限公司 | Headphones, headphone assemblies, and related methods |
| WO2022179633A1 (en) * | 2021-02-27 | 2022-09-01 | 华为技术有限公司 | Earphone, earphone assembly and related method |
| CN114979874B (en) * | 2021-02-27 | 2023-11-10 | 华为技术有限公司 | Headphones, headphone components and related methods |
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