CN220113895U - Forming die capable of processing light-transmitting plastic part - Google Patents
Forming die capable of processing light-transmitting plastic part Download PDFInfo
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- CN220113895U CN220113895U CN202321440633.5U CN202321440633U CN220113895U CN 220113895 U CN220113895 U CN 220113895U CN 202321440633 U CN202321440633 U CN 202321440633U CN 220113895 U CN220113895 U CN 220113895U
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- mold core
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- demolding
- product cavity
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- 229920003023 plastic Polymers 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 26
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 abstract description 24
- 238000004513 sizing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000554 physical therapy Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a forming die capable of processing a light-transmitting plastic part, which comprises a front die and a rear die, wherein the front die and the rear die are connected in an openable manner, a front die core is arranged on the front die, a rear die core is arranged at a position corresponding to the front die core on the rear die, a product cavity is arranged at the joint of the front die core and the rear die core, heating pipes are respectively arranged in the front die core and the rear die core and are used for heating the front die core and the rear die core by an external heat source, a plurality of bulges are arranged in the product cavity on the rear die core, and a gas dispersing insert is arranged in each bulge. The utility model can mold the transparent plastic part product by one-time injection molding without placing a film in the product cavity in advance, thereby improving the processing efficiency, reducing the processing cost and improving the processing yield.
Description
Technical Field
The utility model relates to the technical field of injection molds, in particular to a forming mold capable of processing a light-transmitting plastic part.
Background
At present, plastic products with display screens or touch keys are widely used in life of people, for example: automotive interior display panels, display panels of various small household appliances, display panels of medical devices, and the like. Fig. 1 and 2 show a front panel of a physiotherapy machine, the main body of the product is molded by a plastic part, wherein a plurality of light-transmitting parts 101 are arranged on a plastic part product 100, lamp beads are arranged at positions corresponding to the light-transmitting parts 101 on the physiotherapy machine, light emitted by the lamp beads can pass through the light-transmitting parts 101, and a user can know relevant working states of the physiotherapy machine through external observation.
The existing injection molding Mold cannot directly Mold the plastic part, and the most common method adopted In the prior art is to use an IMD (In-Mold separation) process or an IML (In-moldbbel) process when molding the plastic part as shown In fig. 1 and 2; however, no matter the IMD or IML technology is used, the corresponding film needs to be cut in advance, the film is subjected to corresponding technological treatment, then the film is placed into a product cavity of a die for injection molding, and the whole processing process has more and complicated steps, so that the processing efficiency is low, and the production cost is high; in addition, the film is placed in the die cavity for injection molding, so that defective products are produced due to the fact that the film is not placed in place, and loss is caused.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a forming die capable of processing a light-transmitting plastic part, which comprises a front die and a rear die, wherein the front die and the rear die are connected in an openable manner, a front die core is arranged on the front die, a rear die core is arranged at a position corresponding to the front die core on the rear die, a product cavity is arranged at the joint of the front die core and the rear die core, heating pipes are respectively arranged in the front die core and the rear die core and used for heating the front die core and the rear die core by an external heat source, a plurality of bulges are arranged in the product cavity on the rear die core, and a gas dispersing insert is arranged in each bulge.
As a further improvement of the utility model, one end of the air dispersing insert extends into the product cavity, and the other end extends out of the rear mold core.
As a further improvement of the utility model, the air dispersing insert is made of an air-discharging steel material.
As a further improvement of the utility model, the heating pipes are respectively distributed on the peripheral side walls of the front mold core and the rear mold core.
As a further improvement of the utility model, the rear die is provided with a material injection port, a plurality of material injection ports are arranged in the product cavity, and the material injection ports are respectively communicated with the material injection ports.
As a further improvement of the utility model, the rear mold core is provided with a plurality of positioning grooves, positioning blocks are respectively arranged at the corresponding positions of the front mold core and the positioning grooves, and the positioning blocks can be inserted into the corresponding positioning grooves.
As a further improvement of the utility model, a plurality of guide holes are arranged on the rear die, guide posts are respectively arranged at the corresponding positions of the front die and the guide holes, and the guide posts are inserted into the corresponding guide holes to be connected in a sliding way.
As a further improvement of the utility model, the rear die is provided with a demoulding mechanism which is used for ejecting the processed product out of the product cavity.
As a further improvement of the utility model, the demolding mechanism comprises a demolding oil cylinder, an ejector plate and a demolding ejector pin, wherein one end of the demolding ejector pin can extend into the product cavity, the other end of the demolding ejector pin is connected with the ejector plate, the demolding oil cylinder is connected with the ejector plate, the output end of the demolding oil cylinder is connected with the rear mold, and the demolding oil cylinder can drive the ejector plate to move so as to drive the demolding ejector pin to extend into or extend out of the product cavity.
Compared with the prior art, the utility model has the beneficial effects that:
the bulge is arranged in the product cavity of the rear die and the region needing light transmission on the product, so that the light transmission region on the molded product is thinner, and the requirement of light transmission can be met; the heating pipes are respectively arranged in the front mold core and the rear mold core, so that the heating pipes can heat the mold during injection molding, the fluidity of liquid sizing material in a product cavity during injection molding is improved, the sizing material can flow into the protruding part, and the trapped air of the protruding part can be discharged through the air dispersing insert arranged in the protruding part, so that the processing quality is improved. The utility model can mold the transparent plastic part product by one-time injection molding without placing a film in the product cavity in advance, thereby improving the processing efficiency, reducing the processing cost and improving the processing yield.
Drawings
In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a product manufactured by an embodiment of the present utility model;
FIG. 2 is a schematic view of the back structure of a product processed according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a rear mold core structure in an embodiment of the present utility model;
FIG. 4 is a schematic view of a rear mold structure according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a front mold structure according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram showing a mold closing state according to an embodiment of the present utility model.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the utility model may be combined with other embodiments.
In order to enable those skilled in the art to better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 3-6, a forming die capable of processing a light-transmitting plastic part comprises a front die 1 and a rear die 2, wherein the front die 1 and the rear die 2 are connected in an openable manner, a front die core 3 is arranged on the front die 1, a rear die core 4 is arranged at a position corresponding to the front die core 3 on the rear die 2, a product cavity 5 is arranged at a joint of the front die core 3 and the rear die core 4, the product cavities 5 are respectively distributed on the front die core 3 and the rear die core 4, heating pipes 6 are respectively arranged in the front die core 3 and the rear die core 4, the heating pipes 6 are used for externally connecting a heat source to heat the front die core 3 and the rear die core 4, a plurality of bulges 7 are arranged in the product cavity 5 on the rear die core 4, and a gas dispersing insert 8 is arranged in each bulge 7.
The forming die can be used for forming the light-transmitting plastic part product 100 through one-time injection molding, a film does not need to be placed in the product cavity 5 in advance, the processing efficiency is improved, the processing cost is reduced, and the processing yield is also improved.
It should be noted that, as shown in fig. 1 and 2, the plastic product 100 capable of transmitting light is provided with a plurality of light transmitting portions 101, where the light transmitting portions 101 are thinner than other places, and the thickness of the light transmitting portions 101 cannot exceed 0.5mm, so that the requirement of transmitting light can be met. When the plastic product 100 is to be injection molded, the thickness of the light-transmitting portion 101 corresponding to the product cavity 5 needs to be reduced in the mold; if the thickness of the light-transmitting part 101 in the product cavity 5 is reduced to a size capable of meeting the light-transmitting requirement, the existing mold is difficult to ensure that the light-transmitting part 101 can be fully paved with glue in the injection molding process, so that the glue is easy to be unsaturated, and poor in processing is caused; on the other hand, when the thickness of the light-transmitting portion 101 in the product cavity 5 is reduced, air trapping is likely to occur in the region corresponding to the light-transmitting portion 101 in the product cavity 5, and the air trapping is likely to occur in the light-transmitting portion 101 to burn out the product with the injection of the sizing material, resulting in defective processing.
In order to overcome the problems, in the forming die provided by the utility model, the protrusions 7 are respectively arranged in the product cavity 5 on the rear die core 4 and at the positions corresponding to the light-transmitting parts 101, so that after the front die core 3 and the rear die core 4 are matched, the size of the positions corresponding to the light-transmitting parts 101 in the product cavity 5 is thinner, the thickness is lower than 0.5mm, and the requirements of light transmission can be completely met.
The heating pipes 6 are respectively arranged on the front mold core 3 and the rear mold core 4, and when injection molding is performed, the heating pipes 6 are externally connected with a heat source on injection molding equipment to heat the front mold core 3 and the rear mold core 4, so that the mold temperature in the injection molding process can be improved. In the prior art, the temperature of an injection molding die of the die is 40-80 ℃, and the die temperature can reach 150-160 ℃ through a heating pipe 6. By increasing the molding temperature of the mold, the fluidity of the sizing material in the product cavity 5 can be increased, so that the problem that the sizing material is unsaturated because the sizing material cannot fill the light-transmitting part 101 is avoided.
In order to solve the problem of trapped air of the light-transmitting parts 101, each protrusion 7 is internally provided with an air-dispersing insert 8, namely, each light-transmitting part 101 is provided with the air-dispersing insert 8, one end of the air-dispersing insert 8 extends into the product cavity 5, the other end of the air-dispersing insert extends out of the rear mold core 4, and the air-dispersing insert 8 is made of exhaust steel materials. The die steel with micropores inside has the advantages of small specific gravity, good energy absorption, good vibration damping effect, large specific surface area and the like. Through the micro holes in the air dispersing insert 8, redundant air in the light transmitting part 101 can be discharged out of the rear mold core 4, the possibility of air trapping in the light transmitting part 101 is reduced, and the processing quality is improved.
In the embodiment, the heating pipes 6 are arranged on the side walls around the front mold core 3 and the rear mold core 4, so that the heating efficiency of the mold is improved, and the processing yield is improved.
As shown in fig. 3, 4 and 6, a material injection port 21 is arranged on one side, far away from the product cavity 5, of the rear mold 2, a plurality of material injection ports 51 are arranged in the product cavity 5, and the material injection ports 21 are respectively communicated with all the material injection ports 51. During injection molding, the rear mold 2 and the rear mold 2 are respectively installed on injection molding equipment, the material injection port 21 is connected with a feeding mechanism of the injection molding equipment, liquid sizing material flows into the material injection port 21 through the feeding mechanism of the injection molding equipment, flows into the material inlet 51 through the material injection port 21, and finally flows into the product cavity 5 for injection molding.
As shown in fig. 3-5, in order to enable the rear mold core 4 and the front mold core 3 to be accurately positioned during mold closing, three positioning grooves 41 are formed in the rear mold core 4, the three positioning grooves 41 are respectively distributed on three side edges of the rear mold core 4, positioning blocks 31 are respectively arranged at corresponding positions of the front mold core 3 and the positioning grooves 41, and after the front mold core 3 and the rear mold core 4 are mold closed, the positioning blocks 31 can be respectively inserted into the corresponding positioning grooves 41, so that the front mold core 3 and the rear mold core 4 are mold closed and sealed, and the stability of the structure is improved.
Four guide holes 22 are formed in the rear die 2, the four guide holes 22 are respectively arranged at four corners of the rear die 2, guide posts 9 are respectively arranged at corresponding positions of the front die 1 and the guide holes 22, and the guide posts 9 are inserted into the corresponding guide holes 22 to be connected in a sliding mode. During injection molding, the front mold 1 and the rear mold 2 are respectively arranged on injection molding equipment, and in the process of mold opening or mold closing, the injection molding equipment can drive the front mold 1 and the rear mold 2 to perform relative movement, so as to drive the guide post 9 to slide in the guide hole 22. Through the cooperation of guide post 9 and guiding hole 22, can advance the location to front mould 1 and back mould 2 to ensure can accurate compound die.
The rear mould 2 is provided with a demoulding mechanism which is used for ejecting the processed product out of the product cavity 5. Specifically, the demolding mechanism comprises a demolding cylinder 10, ejector plates 11 and demolding ejector pins 12, wherein the number of the demolding ejector pins 12 is multiple, one end of each demolding ejector pin 12 can extend into a product cavity 5 and can protrude out of the product cavity 5, the other end of each demolding ejector pin 12 is fixedly connected with the ejector plate 11, the demolding cylinder 10 is fixedly arranged on the ejector plate 11, and the output end of each demolding cylinder 10 is in limit connection with the rear mold 2; during injection molding, the demolding cylinder 10 is connected with a control mechanism of injection molding equipment, and the ejector plate 11 can be driven to move by controlling the operation of the demolding cylinder 10, so that the demolding ejector pin 12 is driven to extend into or extend out of the product cavity 5.
After the product in the product cavity 5 is cooled and molded, the demolding thimble 12 is connected with the molded product in the product cavity 5, the control mechanism of the injection molding equipment controls the demolding cylinder 10 to work, and the output end of the demolding cylinder 10 is connected with the rear mold 2, so that the demolding cylinder 10 is pushed to drive the thimble plate 11 to move under the pushing of the reaction force of the rear mold 2, the thimble plate 11 pushes the demolding thimble 12 to extend out of the product cavity 5, and the molded product is further pushed to be separated from the product cavity 5, so that the demolding work of the product is completed; after demolding is completed, the demolding cylinder 10 resets to drive the ejector plate 11 and the demolding ejector pin 12 to reset to the initial positions, so that the demolding ejector pin 12 stretches into the product cavity.
The foregoing embodiments are preferred embodiments of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the following claims.
Claims (9)
1. A forming die capable of processing a light-transmitting plastic part is characterized in that: the mold comprises a front mold and a rear mold, wherein the front mold and the rear mold can be connected in an opening and closing manner, a front mold core is arranged on the front mold, a rear mold core is arranged on the rear mold and at the corresponding position of the front mold core, a product cavity is arranged at the joint of the front mold core and the rear mold core, heating pipes are respectively arranged in the front mold core and the rear mold core and used for heating the front mold core and the rear mold core by external heat sources, a plurality of bulges are arranged in the product cavity on the rear mold core, and a gas dispersing insert is arranged in each bulge.
2. The molding die capable of processing a light-transmitting plastic part according to claim 1, wherein: one end of the air dispersing insert extends into the product cavity, and the other end extends out of the rear mold core.
3. The molding die capable of processing a light-transmitting plastic part according to claim 1, wherein: the air dispersing insert is made of exhaust steel materials.
4. The molding die capable of processing a light-transmitting plastic part according to claim 1, wherein: the heating pipes are respectively distributed on the side walls of the periphery of the front mold core and the rear mold core.
5. The molding die capable of processing a light-transmitting plastic part according to any one of claims 1 to 4, wherein: the back mold is provided with a material injection port, a plurality of material inlet ports are arranged in the product cavity, and the material injection ports are respectively communicated with the material inlet ports.
6. The molding die capable of processing light-transmitting plastic parts according to claim 5, wherein: the rear mold core is provided with a plurality of positioning grooves, positioning blocks are respectively arranged at the corresponding positions of the front mold core and the positioning grooves, and the positioning blocks can be inserted into the corresponding positioning grooves.
7. The molding die capable of processing light-transmitting plastic parts according to claim 5, wherein: the rear die is provided with a plurality of guide holes, guide posts are respectively arranged at the corresponding positions of the front die and the guide holes, and the guide posts are inserted into the corresponding guide holes to be connected in a sliding mode.
8. The molding die capable of processing light-transmitting plastic parts according to claim 5, wherein: and the rear die is provided with a demoulding mechanism which is used for ejecting the processed product out of the product cavity.
9. The molding die capable of processing a light-transmitting plastic part according to claim 8, wherein: the demolding mechanism comprises a demolding oil cylinder, a thimble plate and a demolding thimble, one end of the demolding thimble can extend into the product cavity, the other end of the demolding thimble is connected with the thimble plate, the demolding oil cylinder is connected with the thimble plate, the output end of the demolding oil cylinder is connected with the rear mold, the demolding oil cylinder can drive the thimble plate to move, and then the demolding thimble is driven to extend into or extend out of the product cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440633.5U CN220113895U (en) | 2023-06-07 | 2023-06-07 | Forming die capable of processing light-transmitting plastic part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440633.5U CN220113895U (en) | 2023-06-07 | 2023-06-07 | Forming die capable of processing light-transmitting plastic part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220113895U true CN220113895U (en) | 2023-12-01 |
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ID=88890456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321440633.5U Active CN220113895U (en) | 2023-06-07 | 2023-06-07 | Forming die capable of processing light-transmitting plastic part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220113895U (en) |
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2023
- 2023-06-07 CN CN202321440633.5U patent/CN220113895U/en active Active
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