CN216100069U - Liquid silicone rubber die-pressing foaming forming die - Google Patents
Liquid silicone rubber die-pressing foaming forming die Download PDFInfo
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- CN216100069U CN216100069U CN202121763503.6U CN202121763503U CN216100069U CN 216100069 U CN216100069 U CN 216100069U CN 202121763503 U CN202121763503 U CN 202121763503U CN 216100069 U CN216100069 U CN 216100069U
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Abstract
The utility model discloses a liquid silicone rubber mould pressing foaming forming mould which comprises a lower mould cover plate and an upper mould cover plate positioned above the lower mould cover plate, wherein a mould frame with adjustable thickness is arranged between the lower mould cover plate and the upper mould cover plate. The utility model has the advantages of low investment cost of the die, small equipment investment and small occupied area, and can be used for production only by a common plate vulcanizing machine and a combined die. When the mould disclosed by the utility model is used for preparing the foaming sponge, the overall process is simple, the operation is easy, the foaming sponge can be produced only by a common rubber vulcanization mode, the one-time feeding is less, and the process is relatively stable.
Description
Technical Field
The utility model belongs to the technical field of rubber foaming molds, and particularly relates to a liquid silicone rubber mold pressing foaming forming mold.
Background
The liquid silicon rubber foaming sponge is produced by adopting a calender and a hot drying channel, and then is cut into a specified size and shape according to requirements. At present, liquid silicon rubber foaming sponge equipment is expensive in manufacturing cost and has many technical problems. Firstly, as the raw material is liquid silicone rubber, a large number of matched tools are needed to put the liquid rubber into a calender; secondly, the small-batch production of products is difficult, the equipment is large, the material feeding is also large at one time, and once the quality problem exists, the product loss is also large. Third, the complex process requires a highly skilled craftsman to form the product. Fourth, the equipment occupies a large space, and a common production line requires at least 10 square meters of installation space. Fifth, the thickness of the foamed sponge produced is limited, typically not to exceed 15 mm.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the defects and shortcomings in the background technology and provide a liquid silicone rubber mould pressing foaming forming mould.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides a liquid silicon rubber mould pressing foaming forming die, includes the bed die apron and is located the last mould apron of bed die apron top, be equipped with thickness adjustable mould frame between bed die apron and the last mould apron.
Furthermore, the die frame is formed by combining a plurality of sheet die frames which are sequentially arranged from bottom to top.
Furthermore, the outer width, the inner width, the outer length and the inner length of the sheet body die frames are all consistent.
Furthermore, in the die frame, two sheet die frames which are adjacent up and down are connected through a positioning structure.
Further, the positioning structure comprises a positioning pin and a positioning hole; one side of the sheet body die frame is fixedly provided with a plurality of positioning pins, the other sheet body die frame corresponding to each positioning pin is provided with a positioning hole corresponding to the positioning pin, and the positioning pins are matched and connected with the positioning holes.
Furthermore, one side of the sheet body mold frame is fixed with a plurality of positioning pins and provided with a plurality of positioning holes, the other sheet body mold frame corresponding to each positioning hole is fixed with a positioning pin corresponding to the positioning hole, and the positioning hole is connected with the positioning pin in a matching way.
Further, the die frame is of a square frame structure, and a forming cavity is formed between the square frame structure and the lower die cover plate and between the square frame structure and the upper die cover plate; the lower die cover plate and the upper die cover plate are of square structures, the die frame is placed on the lower die cover plate, and the upper die cover plate is covered on the upper end of the die frame.
Furthermore, detachable air guide cloth is arranged on the upper end face of the lower die cover plate and the lower end face of the upper die cover plate.
Further, the upper end face of the lower die cover plate and the lower end face of the upper die cover plate are provided with a plurality of air guide cloth fixing grooves, air guide cloth fixing keys for fixing air guide cloth are connected in the air guide cloth fixing grooves in a matched mode, and the air guide cloth fixing grooves are located on the outer side of the die frame.
Further, air guide cloth fixing grooves which are located on the upper end face of the lower die cover plate and the lower end face of the upper die cover plate are symmetrically arranged and parallel to each other, and two ends of each air guide cloth fixing groove are opened. Compared with the prior art, the utility model has the beneficial effects that:
(1) the utility model has the advantages of adjustable die thickness, simple structure, less investment cost, small equipment investment and small occupied area, and can be used for production only by a common plate vulcanizing machine and a combined die.
(2) When the foaming sponge is prepared by the mold, the whole process is simple, the operation is easy, the foaming sponge can be produced only by a common rubber vulcanization mode, the one-time feeding is less, and the process is relatively stable.
(3) The thickness of the product produced by the die is greatly improved compared with that produced by a calender.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a liquid silicone rubber molding foaming mold;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of a mold frame;
FIG. 4 is a schematic structural view of a sheet mold frame;
FIG. 5 is a schematic view of the assembled lower mold cover plate and air guide cloth;
FIG. 6 is a schematic view of a disassembled structure of the cover plate of the lower mold and the air cloth fixing key;
FIG. 7 is a schematic view of the assembled upper mold cover plate and air guide cloth.
Illustration of the drawings:
1a, a lower die cover plate; 1b, an upper die cover plate; 11. a gas guide cloth fixing groove; 12. a gas guide cloth fixing key; 2. a mold frame; 21. a sheet mold frame; 211. positioning pins; 212. positioning holes; 3. a molding cavity; 4. an air guide cloth.
Detailed Description
In order to facilitate understanding of the utility model, the utility model will be described more fully and in detail with reference to the accompanying drawings and preferred embodiments, but the scope of the utility model is not limited to the specific embodiments below.
Example (b):
as shown in fig. 1-7, a liquid silicone rubber molding foaming mold comprises a lower mold cover plate 1a and an upper mold cover plate 1b located above the lower mold cover plate 1a, and a mold frame 2 with adjustable thickness is arranged between the lower mold cover plate 1a and the upper mold cover plate 1 b.
When the forming die is used for preparing the foaming sponge, the liquid silicon rubber is placed in the die frame 2, and the foaming sponge with the specified size can be prepared from the liquid silicon rubber in a die pressing and vulcanizing manner.
The utility model has simple structure, simple and convenient disassembly and assembly operation, less mold investment cost, small equipment investment and small occupied area, can be used for production only by a common plate vulcanizing machine and a combined mold, and can effectively improve the production efficiency of the liquid silicone rubber. The height of the die frame 2 is adjustable, so that the die frame can be suitable for preparing silicon rubber foaming sponges with different thicknesses, and the thickness of the produced product is greatly improved compared with that of the produced product produced by a calender. And the density and the thickness of the foaming sponge can be effectively controlled by adjusting the height of the die.
In this embodiment, the mold frame 2 is formed by combining a plurality of sheet mold frames 21 arranged in sequence from bottom to top. Therefore, the height of the die frame 2 can be adjusted by increasing or decreasing the number of the sheet die frame 21, the die is simple and convenient, the die heights can be combined at will, and the die manufacturing cost is reduced.
In this embodiment, the outer width, the inner width, the outer length, and the inner length of the plurality of sheet mold frames 21 are all the same, which is beneficial to forming a foam sponge product with the same upper and lower structure, and is convenient for alignment during installation.
In this embodiment, in the mold frame 2, two sheet mold frames 21 adjacent to each other up and down are connected by a positioning structure. After the connection through the positioning structure, when the foaming sponge is prepared, the sheet body mold frames 21 cannot be dislocated.
In this embodiment, the positioning structure includes a positioning pin 211 and a positioning hole 212; a plurality of positioning pins 211 are fixed on one surface of the sheet mold frame 21, a positioning hole 212 corresponding to each positioning pin 211 is formed in the other sheet mold frame 21 corresponding to each positioning pin 211, and the positioning pins 211 are connected with the positioning holes 212 in a matching manner. Through the connection of the positioning pin 211 and the positioning hole 212, the two sheet body mold frames 21 which are adjacent up and down can be connected stably.
In this embodiment, one surface of the sheet mold frame 21 is fixed with a plurality of positioning pins 211 and a plurality of positioning holes 212, and the other sheet mold frame 21 corresponding to each positioning hole 212 is fixed with a positioning pin 211 corresponding to the positioning hole 212, and the positioning holes 212 are connected with the positioning pins 211 in a matching manner. Through set up locating pin 211 and locating hole 212 simultaneously at the one side of same piece body mould frame 21, make two piece body mould frames 21 adjacent about connecting more firm, difficult separation.
In this embodiment, the mold frame 2 is a square frame structure, and a molding cavity 3 is formed between the square frame structure and the lower mold cover plate 1a and the upper mold cover plate 1 b; the lower die cover plate 1a and the upper die cover plate 1b are both of a square structure, the die frame 2 is placed on the lower die cover plate 1a, and the upper die cover plate 1b covers the upper end of the die frame 2. The die frame 2, the lower die cover plate 1a and the upper die cover plate 1b are of square structures, so that stress on each part is uniform, the preparation of the foaming sponge with more uniform structural organization is facilitated, and each structural connection mode is simple and convenient to disassemble and assemble.
In this embodiment, the upper end surface of the lower mold cover plate 1a and the lower end surface of the upper mold cover plate 1b are both provided with detachable air guide cloths 4. The air guide cloth can be directly made of conventional cloth, but the temperature resistance of the air guide cloth is required to be over 160 ℃. Through setting up air guide cloth 4, be convenient for in the vulcanization foaming process, lead out the gas of upper and lower position.
In this embodiment, the upper end surface of the lower mold cover plate 1a and the lower end surface of the upper mold cover plate 1b are both provided with a plurality of air guide cloth fixing grooves 11, the air guide cloth fixing grooves 11 are connected with air guide cloth fixing keys 12 for fixing the air guide cloth 4 in a matching manner, and the air guide cloth fixing grooves 11 are located on the outer side of the mold frame 2. The above-mentioned mode of fixing the air guide cloth 4 is simple, and is easy to fix and dismantle, and generally, the air guide cloth fixing grooves 11 are provided at both ends of the length direction of the lower die cover plate 1a and the upper die cover plate 1b, and the number of the air guide cloth fixing grooves 11 at each end is one.
In this embodiment, the air guide cloth fixing grooves 11 located on the upper end surface of the lower mold cover plate 1a and the lower end surface of the upper mold cover plate 1b are symmetrically arranged and parallel to each other, so that the air guide cloth 4 can be fixed more smoothly. The two ends of the air guide cloth fixing groove 11 are opened, so that the installation and the disassembly of the air guide cloth fixing key 12 are more facilitated, and the air guide cloth 4 is fixed more firmly.
In this embodiment, the liquid silicone rubber molding foaming mold is made of a metal material, and is high temperature resistant, light in weight and stable in mold structure.
A molding method adopting the liquid silicone rubber mold pressing foaming molding mold comprises the following steps:
1) after the air guide cloth 4 is spread and supported on the lower die cover plate 1a, the air guide cloth 4 is fixed in the air guide cloth fixing groove 11 by the air guide cloth fixing key 12;
2) 2 sheet body mould frames 21 with the thickness of 4mm are combined into a mould with the thickness of 8mm and are arranged on a lower mould cover plate 1 a;
3) pouring the metered liquid silicon rubber, leveling, putting 2 sheet body mould frames 21 with the thickness of 4mm into the mould frame 2 with the thickness of 16mm, and covering the upper mould cover plate 1b fixed with the air guide cloth 4;
4) vulcanizing at 120 ℃ for 20 minutes to obtain the product with the thickness of 16mm and the density of 0.5g/cm3The silicone rubber sponge is prepared by foaming liquid silicone rubber.
Another molding method adopting the liquid silicone rubber mold pressing foaming molding mold comprises the following steps:
1) after the air guide cloth 4 is spread and supported on the lower die cover plate 1a, the air guide cloth 4 is fixed in the air guide cloth fixing groove 11 by the air guide cloth fixing key 12;
2) 1 sheet body mold frame 21 with the thickness of 3mm is arranged on the lower mold cover plate 1 a;
3) pouring the metered liquid silicon rubber, leveling, putting 1 sheet body mould frame 21 with the thickness of 2mm into the mould frame 2 with the thickness of 5mm, and covering the upper mould cover plate 1b fixed with the air guide cloth 4;
4) vulcanizing at 120 ℃ for 20 minutes to obtain the product with the thickness of 5mm and the density of 0.6g/cm3The silicone rubber sponge is prepared by foaming liquid silicone rubber.
The liquid silicone rubber mould pressing foaming forming mould is adopted to form the sponge, so that the silicone rubber foaming sponge with various thicknesses can be conveniently prepared, and the production efficiency and the product quality of the liquid silicone rubber can be greatly improved.
Claims (10)
1. The liquid silicone rubber mould pressing foaming forming mould is characterized by comprising a lower mould cover plate (1a) and an upper mould cover plate (1b) positioned above the lower mould cover plate (1a), wherein a mould frame (2) with adjustable thickness is arranged between the lower mould cover plate (1a) and the upper mould cover plate (1 b).
2. The liquid silicone rubber mold-pressing foaming molding mold according to claim 1, wherein the mold frame (2) is formed by combining a plurality of sheet mold frames (21) which are arranged in sequence from bottom to top.
3. The liquid silicone rubber molding foaming mold according to claim 2, wherein the sheet mold frames (21) have the same outer width, inner width, outer length and inner length.
4. The liquid silicone rubber molding foaming mold according to claim 2, wherein two sheet mold frames (21) adjacent to each other up and down in the mold frame (2) are connected by a positioning structure.
5. The liquid silicone rubber molding foaming mold according to claim 4, wherein the positioning structure comprises a positioning pin (211) and a positioning hole (212); one side of the sheet body mold frame (21) is fixed with a plurality of positioning pins (211), each positioning pin (211) corresponds to another sheet body mold frame (21) is provided with a positioning hole (212) corresponding to the positioning pin (211), and the positioning pins (211) are matched and connected with the positioning holes (212).
6. The liquid silicone rubber mold-pressing foaming mold as claimed in claim 5, wherein a plurality of positioning pins (211) and a plurality of positioning holes (212) are fixed on one surface of the sheet mold frame (21), a positioning pin (211) corresponding to each positioning hole (212) is fixed on the other sheet mold frame (21), and the positioning holes (212) are connected with the positioning pins (211) in a matching manner.
7. The liquid silicone rubber mold pressing foaming molding mold as claimed in any one of claims 1 to 6, wherein the mold frame (2) is a square frame structure, and a molding cavity (3) is formed between the square frame structure and the lower mold cover plate (1a) and the upper mold cover plate (1 b); the lower die cover plate (1a) and the upper die cover plate (1b) are of square structures, the die frame (2) is placed on the lower die cover plate (1a), and the upper die cover plate (1b) is arranged at the upper end of the die frame (2).
8. The liquid silicone rubber mold pressing foaming molding mold as claimed in any one of claims 1 to 6, wherein the upper end surface of the lower mold cover plate (1a) and the lower end surface of the upper mold cover plate (1b) are both provided with detachable air guide cloths (4).
9. The liquid silicone rubber mold-pressing foaming mold as claimed in claim 8, wherein a plurality of air guide cloth fixing grooves (11) are formed in the upper end surface of the lower mold cover plate (1a) and the lower end surface of the upper mold cover plate (1b), air guide cloth fixing keys (12) for fixing the air guide cloth (4) are fittingly connected in the air guide cloth fixing grooves (11), and the air guide cloth fixing grooves (11) are located outside the mold frame (2).
10. The liquid silicone rubber mold-pressing foaming molding mold according to claim 9, wherein the air guide cloth fixing grooves (11) on the upper end surface of the lower mold cover plate (1a) and the lower end surface of the upper mold cover plate (1b) are symmetrically arranged and parallel to each other, and both ends of the air guide cloth fixing grooves (11) are open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763503.6U CN216100069U (en) | 2021-07-30 | 2021-07-30 | Liquid silicone rubber die-pressing foaming forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763503.6U CN216100069U (en) | 2021-07-30 | 2021-07-30 | Liquid silicone rubber die-pressing foaming forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216100069U true CN216100069U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121763503.6U Active CN216100069U (en) | 2021-07-30 | 2021-07-30 | Liquid silicone rubber die-pressing foaming forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216100069U (en) |
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2021
- 2021-07-30 CN CN202121763503.6U patent/CN216100069U/en active Active
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