CN117885271A - Foaming plastic forming self-skinning forming die and forming process - Google Patents
Foaming plastic forming self-skinning forming die and forming process Download PDFInfo
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- CN117885271A CN117885271A CN202410246990.0A CN202410246990A CN117885271A CN 117885271 A CN117885271 A CN 117885271A CN 202410246990 A CN202410246990 A CN 202410246990A CN 117885271 A CN117885271 A CN 117885271A
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- skinning
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- 239000004033 plastic Substances 0.000 title claims abstract description 55
- 229920003023 plastic Polymers 0.000 title claims abstract description 55
- 238000005187 foaming Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000000465 moulding Methods 0.000 claims abstract description 32
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 10
- 238000010137 moulding (plastic) Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000010097 foam moulding Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004794 expanded polystyrene Substances 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000005022 packaging material Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a foaming plastic forming self-skinning forming die and a forming process, wherein the foaming plastic forming self-skinning forming die comprises a support frame, a fixed die plate, a movable die plate, a guide assembly and a parameter control mechanism, wherein the fixed die plate is fixedly arranged at one end of the top of the support frame, and a material pipe connected with a material cylinder is arranged on the fixed die plate; the fixed template is provided with a sealing assembly; the movable template is arranged corresponding to the fixed template, a push-pull assembly is arranged on one side of the movable template, which is far away from the fixed template, and the movable template slides on the top of the support frame; the guide assembly is fixedly arranged on one side of the fixed template, which is close to the movable template; and the side, away from the fixed die plate and the movable die plate, of the fixed die plate is provided with a parameter control mechanism, and the parameter control mechanism is used for controlling the molding parameters of the foamed plastic and the expansion and contraction of the push-pull assembly. According to the invention, through the arrangement of the sealing assembly, the sealing assembly can be used for sealing the material pipe, so that the foaming plastic is prevented from entering the material pipe in the forming process, the quality of the foaming plastic is ensured, the foaming plastic is convenient to demould, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of foamed plastic, in particular to a self-skinning forming die and a forming process for forming the foamed plastic.
Background
The foaming polystyrene is prepared by foaming polystyrene with a foaming agent, and the polystyrene is a plastic material widely used. Since expanded polystyrene is white, light in weight and excellent in water resistance, heat insulation, sound insulation, shock absorption, etc., it is generally used as a cup or bowl, dish, clam-shaped container, meat packaging material, egg packaging material, packaging material for electronic or other fragile products, granular building material, decorative furniture, boxes for agricultural and marine products, and the like.
When the prior equipment for producing the expanded polystyrene is used, a material pipe for feeding on a die is always in a communicating state in the forming process, so that the expanded polystyrene is easy to enter the material pipe in the forming process, the expanded polystyrene finished product needs secondary processing in the later period, and the demolding of the expanded polystyrene finished product can be influenced on the other hand, thereby influencing the production efficiency.
Therefore, it is needed to provide a self-skinning molding die and molding process for molding foamed plastic to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a foaming plastic forming self-skinning forming die and a forming process, which are used for solving the problems in the prior art.
In order to achieve the above object, the present invention provides a foaming plastic molding self-skinning molding die, comprising:
a support frame;
the fixed die plate is fixedly arranged at one end of the top of the supporting frame, and a material pipe connected with the material cylinder is arranged on the fixed die plate; the fixed die plate is provided with a sealing assembly which is used for sealing one end of the material pipe far away from the material cylinder;
the movable template is arranged corresponding to the fixed template, a push-pull assembly is arranged on one side, away from the fixed template, of the movable template, and the push-pull assembly is used for pushing the movable template to slide on the top of the support frame;
the guide assembly is fixedly arranged on one side, close to the movable template, of the fixed template, and is arranged in parallel with the push-pull assembly, and the movable template slides along the guide assembly;
and the parameter control mechanism is arranged on one side, away from the fixed die plate and the movable die plate, of the fixed die plate, and is used for controlling the molding parameters of the foaming plastic and the expansion and contraction of the push-pull assembly.
Preferably, the closure assembly includes:
the equipment box is fixedly arranged at the top end of the fixed template, and a telescopic cylinder I is arranged in the equipment box;
the sealing plate is arranged in the storage groove and is matched with the material pipe; a second telescopic cylinder is fixedly connected to one side, away from the movable template, of the sealing plate, and the fixed end of the second telescopic cylinder is fixedly connected with the piston end of the first telescopic cylinder;
the first telescopic cylinder and the second telescopic cylinder are electrically connected with the parameter control mechanism.
Preferably, the bottom of sealing plate fixedly connected with arc, the arc with flexible jar two is located sealing plate's same side, the arc is used for sealing the holding tank.
Preferably, a lengthening rod is fixedly connected to the piston end of the first telescopic cylinder, and the bottom end of the lengthening rod is fixedly connected with the second telescopic cylinder.
Preferably, the method further comprises:
the demolding assembly is arranged on the fixed mold plate and is used for demolding molded foamed plastic.
Preferably, the demolding assembly comprises a telescopic cylinder III fixedly mounted on the fixed template, the telescopic cylinder III is located on one side, away from the movable template, of the fixed template, a top plate is fixedly connected to a piston end of the telescopic cylinder III, a groove is formed in a mold cavity wall of the fixed template, the top plate is arranged in the groove, and the end face, away from the telescopic cylinder III, of the top plate is flush with the mold cavity wall of the fixed template.
Preferably, the parameter control mechanism includes:
the fixed die plate and the movable die plate are respectively provided with a plurality of inlets and outlets, the connecting pipes are arranged in one-to-one correspondence with the inlets and the outlets, and the connecting pipes are arranged on the outer side of the die cavity;
the collecting pipes are used for connecting a plurality of connecting pipes, four-way reversing electromagnetic valves are arranged on the collecting pipes, and the three remaining interfaces of the four-way reversing electromagnetic valves are respectively connected with a steam heating device, a cooling device and a vacuumizing device;
and the four-way reversing electromagnetic valve, the steam heating device, the cooling device, the vacuumizing device and the push-pull assembly are electrically connected with the controller.
Preferably, a rectangular through hole is formed in the top of the supporting frame, and the foamed plastic after demolding falls to the lower side of the supporting frame through the rectangular through hole.
The invention also provides a foaming plastic forming self-skinning forming process, which specifically comprises the following steps:
s1, feeding;
adding the materials in the charging barrel into a die cavity of a die through a material pipe for multiple times, and recycling redundant materials in the material pipe;
s2, heating;
preheating a die cavity of a die, and discharging air in the die cavity; then heating the fixed template and the movable template respectively to fuse and crust materials in the die cavity;
s3, cooling;
carrying out surface casting cooling on a die cavity of a die to shrink the surface of a material;
s4, vacuum cooling;
and vacuumizing the die cavity of the die to finish shaping.
Compared with the prior art, the invention has the following advantages and technical effects:
according to the self-skinning molding die for molding the foamed plastic, provided by the invention, the sealing assembly is arranged to seal the material pipe, so that the foamed plastic is prevented from entering the material pipe in the molding process, the quality of the foamed plastic is ensured, the foamed plastic is conveniently demoulded, and the production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a self-skinning molding die for molding foamed plastic according to the present invention;
FIG. 2 is a state diagram of the seal assembly of the present invention in the feed;
FIG. 3 is a state diagram of the seal assembly of the present invention during molding;
in the figure: 1. a support frame; 2. a stationary mold plate; 3. a material pipe; 4. a movable template; 5. a push-pull assembly; 6. a guide assembly; 7. an equipment box; 8. a telescopic cylinder I; 9. sealing plate; 10. a storage tank; 11. a telescopic cylinder II; 12. an arc-shaped plate; 13. an extension bar; 14. a telescopic cylinder III; 15. a top plate; 16. a connecting pipe; 17. a manifold; 18. a four-way reversing electromagnetic valve.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art without the inventive effort, are intended to be within the scope of the present invention. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The invention provides a foaming plastic forming self-skinning forming die, which comprises:
a support frame 1;
the fixed template 2 is fixedly arranged at one end of the top of the support frame 1, and a material pipe 3 connected with a material cylinder is arranged on the fixed template 2; the fixed template 2 is provided with a sealing assembly which is used for sealing one end of the material pipe 3 far away from the material cylinder;
the movable template 4 is arranged corresponding to the fixed template 2, a push-pull assembly 5 is arranged on one side, away from the fixed template 2, of the movable template 4, and the push-pull assembly 5 is used for pushing the movable template 4 to slide on the top of the support frame 1;
the guide assembly 6 is fixedly arranged on one side, close to the movable template 4, of the fixed template 2, the guide assembly 6 is arranged in parallel with the push-pull assembly 5, and the movable template 4 slides along the guide assembly 6;
and the parameter control mechanism is arranged on one side, away from the fixed template 2 and the movable template 4, of the parameter control mechanism, and is used for controlling the molding parameters of the foamed plastic and the expansion and contraction of the push-pull assembly 5.
Further, the closure assembly includes:
the equipment box 7 is fixedly arranged at the top end of the fixed template 2, and a telescopic cylinder I8 is arranged in the equipment box 7;
a storage groove 10 is formed in the fixed template 2, the storage groove 10 is communicated with the material pipe 3, the sealing plate 9 is arranged in the storage groove 10, and the sealing plate 9 is matched with the material pipe 3; a second telescopic cylinder 11 is fixedly connected to one side, far away from the movable template 4, of the sealing plate 9, and the fixed end of the second telescopic cylinder 11 is fixedly connected with the piston end of the first telescopic cylinder 8;
the first telescopic cylinder 8 and the second telescopic cylinder 11 are electrically connected with the parameter control mechanism.
Further, an arc plate 12 is fixedly connected to the bottom of the sealing plate 9, the arc plate 12 and the telescopic cylinder II 11 are located on the same side of the sealing plate 9, and the arc plate 12 is used for sealing the storage tank 10.
Further, a lengthening rod 13 is fixedly connected to the piston end of the first telescopic cylinder 8, and the bottom end of the lengthening rod 13 is fixedly connected with the second telescopic cylinder 11.
Further, the method further comprises the following steps:
and the demolding assembly is arranged on the fixed template 2 and is used for demolding the molded foamed plastic.
Further, the demoulding assembly comprises a telescopic cylinder III 14 fixedly mounted on the fixed template 2, the telescopic cylinder III 14 is located on one side, far away from the movable template 4, of the fixed template 2, a top plate 15 is fixedly connected to a piston end of the telescopic cylinder III 14, a groove is formed in a die cavity wall of the fixed template 2, the top plate 15 is arranged in the groove, and the end face, far away from the telescopic cylinder III 14, of the top plate 15 is flush with the die cavity wall of the fixed template 2.
Further, the parameter control mechanism includes:
the fixed template 2 and the movable template 4 are provided with a plurality of inlets and outlets, the connecting pipes 16 are arranged in one-to-one correspondence with the inlets and outlets, and the connecting pipes 16 are arranged at the outer side of the die cavity;
the collecting pipe 17 is used for connecting a plurality of connecting pipes 16, a four-way reversing electromagnetic valve 18 is arranged on the collecting pipe 17, and the three remaining interfaces of the four-way reversing electromagnetic valve 18 are respectively connected with a steam heating device, a cooling device and a vacuumizing device;
the controller, the four-way reversing solenoid valve 18, the steam heating device, the cooling device, the vacuumizing device and the push-pull assembly 5 are all electrically connected with the controller.
Further, the top of support frame 1 is provided with the rectangle through-hole, and the foaming plastics after the drawing of patterns drops to the below of support frame 1 through the rectangle through-hole.
The invention provides a foaming plastic forming self-skinning forming die, the die cavity wall of which needs polishing treatment, and the working principle is as follows:
the push-pull assembly 5 is used for controlling the movement of the movable template 4 so as to realize the die assembly and the die opening of the die, the push-pull assembly 5 can adopt one of an air cylinder, a hydraulic cylinder or an electric cylinder, after the movable template 4 and the fixed template 2 are assembled, the raw material of foaming plastics can be conveyed into a die cavity of the die through a material pipe 3 on the fixed template 2, after the raw material is fed to a specified duration, the raw material in the material pipe 3 is retracted into a material cylinder, then the telescopic cylinder I8 is controlled to extend, the telescopic cylinder I8 pushes a sealing plate 9 and a telescopic cylinder II 11 into the material pipe 3, and then the telescopic cylinder II 11 is controlled to extend a specified distance so as to enable the sealing plate 9 to move towards the pipe opening direction of the material pipe 3, and one end of the sealing plate 9, which is far away from the telescopic cylinder II 11, is flush with the wall of the die cavity, so that the sealing of the material pipe 3 is realized; then the controller controls the steam heating device and the four-way reversing electromagnetic valve 18, the high-temperature steam generated by the steam heating device is utilized to heat and fuse the raw materials in the die cavity, the molding of the foamed plastic is realized, after a certain time, the controller controls the four-way reversing electromagnetic valve 18 to be connected with the cooling device, the cooling device is used for introducing cooling water into the die cavity through the collecting pipe 17 and the connecting pipe 16, so that the foamed plastic is cooled and contracted, then the controller controls the four-way reversing electromagnetic valve 18 to be connected with the vacuumizing device, the vacuumizing device is used for vacuumizing the die cavity through the collecting pipe 17 and the connecting pipe 16, so that the hot steam outside and inside the foamed plastic is completely pumped, the swelling of the foamed plastic is prevented, and the molding is completed.
After the foaming plastic is shaped, the movable template 4 is separated from the fixed template 2 through the push-pull assembly 5, then the foaming plastic is pushed out of the fixed template 2 through the demolding assembly and falls below the support frame 1 through the rectangular through holes in the support frame 1, and then the mold closing and the molding of the foaming plastic can be performed again.
Example 1
The molding process for molding the self-skinning molding die by using the foaming plastic provided by the invention comprises the following steps:
1. feeding materials;
the piston of the gun is opened by 1kg/cm 2 The EPS raw materials in the charging barrel are conveyed into a die cavity of a die through a material pipe 3, the first feeding time is 5 seconds, the charging is carried out again after the first feeding is finished, the duration is 2 seconds, and after the first feeding is finished, more materials in the material pipe 3 are returned into the charging barrel, and the charging process is finished;
2. heating;
firstly, conveying steam into a die through a pipeline, and discharging and preheating air in a die cavity for 2 seconds; then adding the die cavity of the dieHeating the fixed template for 16 seconds, heating the movable mould for 16 seconds, and controlling the steam pressure to be 0.9kg/cm 2 Realizing the fusion of the raw material particles in the die cavity, and then fixing the die plate by using steam with the pressure of 1.0kg/cm 2 Steam pressure for moving die plate 1.3kg/cm 2 Simultaneously heating the surface of the foaming plastic for 25 seconds until the inner surface is fused and skinned, wherein the total heating time is 57 seconds;
3. cooling;
at a temperature of 40-60 ℃ and a pressure of 4.0kg/cm 2 -6.0kg/cm 2 The surface of a die cavity in the die is poured and cooled for 20 seconds through a pipeline, so that the foaming plastic is contracted;
4. vacuum cooling;
with air under negative pressure 4.0kg/cm 2 -6.0kg/cm 2 And (3) exhausting air from the mold for 180 seconds, and exhausting hot air from the outer part and the inner part of the foamed plastic, so that the foamed plastic is not swelled any more and the shaping is completed.
Example two
The molding process for molding the self-skinning molding die by using the foaming plastic provided by the invention comprises the following steps:
1. feeding materials;
the piston of the gun is opened by 0.9kg/cm 2 The EPS raw materials in the charging barrel are conveyed into a die cavity of a die through the material pipe 3, the first feeding time is 5 seconds, the charging is carried out again after the end, the duration is 2 seconds, and after the end, more materials in the material pipe 3 are returned into the charging barrel, and the charging process is ended;
2. heating;
firstly, conveying steam into a die through a pipeline, and discharging air in a die cavity for 2 seconds; then the die cavity of the die is heated, the fixed die plate 2 is heated for 16 seconds, the movable die plate 4 is heated for 16 seconds, and the steam pressure is 0.9kg/cm 2 Realizing the fusion of the raw material particles in the die cavity, and then simultaneously using the steam pressure of 1.3kg/cm for the fixed die plate 2 and the movable die plate 4 2 Heating the surface of the foamed plastic for 25 seconds to perform surface fusion, wherein the total heating time is 57 seconds;
3. cooling;
at a temperature of 40-60 ℃ and a pressure of 4.0kg/cm 2 -6.0kg/cm 2 The surface of a die cavity in the die is poured and cooled for 22 seconds through a pipeline, so that the foaming plastic is contracted;
4. vacuum cooling;
with air under negative pressure 4.0kg/cm 2 -6.0kg/cm 2 And (3) pumping air in the mold for 190 seconds, and pumping hot air outside and inside the foamed plastic, so that the foamed plastic is not swelled any more and the shaping is completed.
The foaming plastic molding self-skinning molding die provided by the invention is used for molding foaming plastic, the assembly time is controlled to be 265-275 seconds, and the molding process of EPS foaming plastic self-skinning is completed by secondary trial production. 1000 g of water is filled in the EPS foam plastic self-skinning box, the water is weighed after standing for 1 hour, the weight of the water is unchanged, and the water is proved not to permeate into the box, so that the process meets the use target requirement.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A foamed plastic molding self-skinning molding die, comprising:
a support (1);
the fixed template (2), the fixed template (2) is fixedly arranged at one end of the top of the supporting frame (1), and a material pipe (3) connected with a material cylinder is arranged on the fixed template (2); the fixed template (2) is provided with a sealing assembly which is used for sealing one end of the material pipe (3) far away from the material cylinder;
the movable template (4) is arranged corresponding to the fixed template (2), a push-pull assembly (5) is arranged on one side, far away from the fixed template (2), of the movable template (4), and the push-pull assembly (5) is used for pushing the movable template (4) to slide on the top of the support frame (1);
the guide assembly (6) is fixedly arranged on one side, close to the movable template (4), of the fixed template (2), the guide assembly (6) is arranged in parallel with the push-pull assembly (5), and the movable template (4) slides along the guide assembly (6);
and the parameter control mechanism is arranged on one side, away from the fixed template (2) and the movable template (4), of the fixed template, and is used for controlling the molding parameters of the foaming plastic and controlling the expansion and contraction of the push-pull assembly (5).
2. The foamed plastic forming self-skinning mold of claim 1, wherein the closure assembly comprises:
the equipment box (7), the equipment box (7) is fixedly arranged at the top end of the fixed template (2), and a telescopic cylinder I (8) is arranged in the equipment box (7);
the sealing plate (9), a storage groove (10) is formed in the fixed die plate (2), the storage groove (10) is communicated with the material pipe (3), the sealing plate (9) is arranged in the storage groove (10), and the sealing plate (9) is matched with the material pipe (3); a second telescopic cylinder (11) is fixedly connected to one side, far away from the movable template (4), of the sealing plate (9), and the fixed end of the second telescopic cylinder (11) is fixedly connected with the piston end of the first telescopic cylinder (8);
the first telescopic cylinder (8) and the second telescopic cylinder (11) are electrically connected with the parameter control mechanism.
3. The foaming plastic forming self-skinning forming die according to claim 2, wherein an arc plate (12) is fixedly connected to the bottom of the sealing plate (9), the arc plate (12) and the telescopic cylinder two (11) are located on the same side of the sealing plate (9), and the arc plate (12) is used for sealing the storage groove (10).
4. The foaming plastic molding self-skinning molding die according to claim 2, wherein a lengthening rod (13) is fixedly connected to a piston end of the telescopic cylinder I (8), and the bottom end of the lengthening rod (13) is fixedly connected with the telescopic cylinder II (11).
5. The foam molding self-skinning molding die of claim 1, further comprising:
the demolding assembly is arranged on the fixed template (2) and is used for demolding molded foamed plastic.
6. The foam plastic molding self-skinning molding die according to claim 5, wherein the demolding assembly comprises a telescopic cylinder III (14) fixedly mounted on the fixed die plate (2), the telescopic cylinder III (14) is located on one side, away from the movable die plate (4), of the fixed die plate (2), a top plate (15) is fixedly connected to a piston end of the telescopic cylinder III (14), a groove is formed in a die cavity wall of the fixed die plate (2), the top plate (15) is arranged in the groove, and an end face, away from the telescopic cylinder III (14), of the top plate (15) is flush with the die cavity wall of the fixed die plate (2).
7. The foam molding self-skinning molding die according to claim 1, wherein the parameter control mechanism comprises:
the fixed die plate (2) and the movable die plate (4) are provided with a plurality of inlets and outlets, the connecting pipes (16) are arranged in one-to-one correspondence with the inlets and outlets, and the connecting pipes (16) are arranged on the outer side of the die cavity;
the collecting pipes (17) are used for connecting a plurality of connecting pipes (16), four-way reversing electromagnetic valves (18) are arranged on the collecting pipes (17), and the three remaining interfaces of the four-way reversing electromagnetic valves (18) are respectively connected with a steam heating device, a cooling device and a vacuumizing device;
and the four-way reversing electromagnetic valve (18), the steam heating device, the cooling device, the vacuumizing device and the push-pull assembly (5) are electrically connected with the controller.
8. The foaming plastic molding self-skinning molding die according to claim 1, wherein a rectangular through hole is formed in the top of the support frame (1), and the foamed plastic after demolding falls to the lower side of the support frame (1) through the rectangular through hole.
9. A process for forming self-skinning by foaming plastic, which is characterized by using the foaming plastic forming self-skinning forming die as claimed in any one of claims 1 to 8, and specifically comprising the following steps:
s1, feeding;
adding the materials in the charging barrel into a die cavity of a die through a material pipe (3) for multiple times, and recycling the redundant materials in the material pipe (3);
s2, heating;
preheating a die cavity of a die, and discharging air in the die cavity; then respectively heating the fixed template (2) and the movable template (4) to enable materials in the die cavity to be fused and skinned;
s3, cooling;
carrying out surface casting cooling on a die cavity of a die to shrink the surface of a material;
s4, vacuum cooling;
and vacuumizing the die cavity of the die to finish shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410246990.0A CN117885271A (en) | 2024-03-05 | 2024-03-05 | Foaming plastic forming self-skinning forming die and forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410246990.0A CN117885271A (en) | 2024-03-05 | 2024-03-05 | Foaming plastic forming self-skinning forming die and forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117885271A true CN117885271A (en) | 2024-04-16 |
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ID=90649380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410246990.0A Pending CN117885271A (en) | 2024-03-05 | 2024-03-05 | Foaming plastic forming self-skinning forming die and forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117885271A (en) |
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2024
- 2024-03-05 CN CN202410246990.0A patent/CN117885271A/en active Pending
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