Air exhaust mold

Abstract

The utility model relates to the technical field of dies, and discloses an air exhaust die which comprises a working table, a lower die is fixedly connected to the top end of the working table, electric telescopic rods are fixedly connected to the four corners of the top end of the working table, and a top plate is fixedly connected to the output ends of the four electric telescopic rods. An upper mold is fixedly connected to the bottom end of the top plate, a vacuum pump is fixedly connected to the interior of the workbench, a connecting pipe is fixedly connected to the output end of the vacuum pump, fixing blocks are fixedly connected to the left side and the right side of the interior of the workbench, and mounting blocks are fixedly connected to the ends, close to each other, of the two fixing blocks. According to the utility model, the structures such as the vacuum pump and the air exhaust head are matched for use, so that air can be exhausted out of the mold cavity according to a negative pressure principle, the generation of bubbles is reduced, the forming quality of products is improved, and the service life of the air exhaust system can be prolonged by arranging the filter plate.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an air extraction mold. Background Art

[0002] A mold is a tool or device used to manufacture or process a product. It can shape or process raw materials in a specific shape and size to make it the desired final product. When producing plastic products, injection molds are usually used for injection molding. It consists of an upper mold and a lower mold. The molten plastic material is injected into the mold cavity and the desired product shape is obtained after cooling and solidification.

[0003] In the prior art, when thermosetting plastics are used to make plastic products, due to the poor fluidity and high viscosity of thermosetting plastics, it is difficult to completely fill the mold cavity during the filling process, especially for molds with complex structures. In addition, the control of plastic molding parameters (such as temperature, pressure, speed, etc.) becomes more complicated, and it is difficult to achieve stable production under different molds and process conditions. It cannot be re-melted and reprocessed during the molding process, and once defects occur, they cannot be repaired, which increases the scrap rate and cost. In view of the above problems, technicians in this field have proposed a vacuum mold to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an exhaust mold, which aims to improve the problem in the prior art that it is difficult to completely fill the mold cavity when thermosetting plastics are used to make plastic products.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A vacuum mold comprises a workbench, the top of the workbench is fixedly connected to a lower mold, the four corners of the top of the workbench are fixedly connected to electric telescopic rods, the output ends of the four electric telescopic rods are fixedly connected to a top plate, the bottom end of the top plate is fixedly connected to an upper mold, the interior of the workbench is fixedly connected to a vacuum pump, the output end of the vacuum pump is fixedly connected to a connecting pipe, the left and right sides of the interior of the workbench are fixedly connected to fixed blocks, the adjacent ends of the two fixed blocks are fixedly connected to mounting blocks, the interior of the mounting block is slidably connected to a filter plate, the top of the filter plate is fixedly connected to an exhaust pipe, the outside of the exhaust pipe is fixedly connected to an exhaust head, a reset component is provided inside the mounting block, and a pulling component is provided inside the mounting block.

[0007] Through the above technical solution, it is possible to extract air from the mold cavity through the negative pressure principle and clean and replace the internal filter plate.

[0008] Furthermore, the reset assembly includes two limit grooves, which are respectively opened on the left and right sides of the interior of the mounting block, and the inner walls of the limit grooves are fixedly connected with springs, and the adjacent ends of the two springs are fixedly connected with limit blocks, and the adjacent ends of the two limit blocks are fixedly connected with clamping blocks, and clamping grooves are opened on the left and right sides of the interior of the filter plate.

[0009] Through the above technical solution, the limiting groove and the limiting block can fix the spring, and the limiting block can drive the clamping block to move.

[0010] Furthermore, the pulling assembly includes two pull ropes, the two pull ropes are respectively fixedly connected to the separated ends of the two limit blocks, and the adjacent ends of the two pull ropes are fixedly connected to the rotating rod.

[0011] Through the above technical solution, the effect is achieved that the rotating rod can drive the pull rope to move, and the pull rope can drive the limit block to move.

[0012] Furthermore, the outside of the exhaust pipe is fixedly connected to the inside of the workbench, and the four exhaust pipes are arranged in a cross shape.

[0013] Through the above technical solution, the workbench can fix the exhaust pipe, and the cross-shaped arrangement can be used to discharge the gas more evenly.

[0014] Furthermore, the outside of the vacuum head is fixedly connected to the inside of the lower mold, and the top end of the connecting pipe is connected to the bottom end of the filter plate.

[0015] Through the above technical solution, the lower mold can fix the vacuum head and the connecting pipe can communicate with the filter plate.

[0016] Furthermore, the interior of the limiting groove is slidably connected to the exterior of the limiting block, and the interior of the limiting groove is slidably connected to the exterior of the clamping block.

[0017] Through the above technical solution, the limiting groove can limit the limiting block and the clamping block.

[0018] Furthermore, the outside of the card block is engaged with the inside of the card slot.

[0019] Through the above technical solution, the position of the filter plate can be fixed by the engagement of the clamping block with the clamping slot.

[0020] Furthermore, the interior of the mounting block is slidably connected to the exterior of the pull rope, and the interior of the mounting block is rotatably connected to the exterior of the rotating rod.

[0021] Through the above technical solution, the installation block can limit the pull rope and the rotating rod.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by using the vacuum pump, connecting pipe, filter plate, exhaust pipe, exhaust head and other structures in coordination with each other, the air can be extracted from the mold cavity through the negative pressure principle, thereby reducing the generation of bubbles and improving the molding quality of the product. In addition, by setting the filter plate, impurities in the mold can be prevented from entering the exhaust system, thereby extending the service life of the exhaust system.

[0024] 2. In the utility model, by the coordinated use of structures such as limit grooves, springs, limit blocks, clamping blocks, clamping grooves, pull ropes, and rotating rods, the clogged filter plates can be conveniently cleaned and replaced, thereby shortening the maintenance time and improving the maintenance efficiency. It can also reduce the downtime of the production line, improve production efficiency, and ensure the continuity of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a vacuum mold proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of an exhaust pipe of an exhaust mold proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the spring structure of a vacuum mold proposed by the utility model;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Workbench; 2. Lower mold; 3. Electric telescopic rod; 4. Top plate; 5. Upper mold; 6. Vacuum pump; 7. Connecting pipe; 8. Fixing block; 9. Mounting block; 10. Filter plate; 11. Exhaust pipe; 12. Exhaust head; 13. Reset assembly; 1301. Limiting groove; 1302. Spring; 1303. Limiting block; 1304. Clamping block; 1305. Clamping groove; 14. Pulling assembly; 1401. Pull rope; 1402. Rotating rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 The utility model provides an embodiment: a vacuum mold, including a workbench 1, the top of the workbench 1 is fixedly connected to a lower mold 2, the four corners of the top of the workbench 1 are fixedly connected to electric telescopic rods 3, the output ends of the four electric telescopic rods 3 are fixedly connected to a top plate 4, and the bottom end of the top plate 4 is fixedly connected to an upper mold 5.

[0033] Specifically, the workbench 1 fixes the lower mold 2 so that the position of the lower mold 2 is fixed, and the workbench 1 limits the electric telescopic rod 3 so that the electric telescopic rod 3 is stable during operation. By starting the electric telescopic rod 3, the top plate 4 is driven to move downward, and then the upper mold 5 is abutted against the lower mold 2. Sealing rings are provided at the connections between the lower mold 2 and the upper mold 5 to prevent gas from entering.

[0034] Reference Figure 1 and Figure 2 A vacuum pump 6 is fixedly connected to the inside of the workbench 1, and a connecting pipe 7 is fixedly connected to the output end of the vacuum pump 6. Fixed blocks 8 are fixedly connected to the left and right sides of the inside of the workbench 1. The adjacent ends of the two fixed blocks 8 are fixedly connected to mounting blocks 9. A filter plate 10 is slidably connected to the inside of the mounting block 9. The top of the connecting pipe 7 is connected to the bottom end of the filter plate 10. The top of the filter plate 10 is fixedly connected to an exhaust pipe 11. The outside of the exhaust pipe 11 is fixedly connected to the inside of the workbench 1. The four exhaust pipes 11 are arranged in a cross shape. An exhaust head 12 is fixedly connected to the outside of the exhaust pipe 11, and the outside of the exhaust head 12 is fixedly connected to the inside of the lower mold 2.

[0035] Specifically, the workbench 1 plays a fixing role on the vacuum pump 6, so that the vacuum pump 6 can operate stably, the fixing block 8 plays a fixing role on the mounting block 9, so that the position of the mounting block 9 can be fixed, the mounting block 9 plays a limiting role on the filter plate 10, so that the filter plate 10 will not deviate when moving, and the connection between the mounting block 9 and the filter plate 10 is provided with a sealing ring, so as to stably ensure the gas discharge, and the filter plate 10 can filter the gas, the workbench 1 plays a fixing role on the exhaust pipe 11, so that the exhaust pipe 11 can be stably exhausted, and the lower mold 2 plays a fixing role on the exhaust head 12, so that the exhaust head 12 can stably exhaust the air inside the mold, and by starting the vacuum pump 6 to operate, the air in the mold is evenly extracted through the four exhaust heads 12, and then the air is sent to the mounting block 9 through the exhaust pipe 11 for filtration, so that the air is transported to the vacuum pump 6 through the connecting pipe 7 and then discharged, and then the air inside the lower mold 2 and the upper mold 5 can be discharged, so as to reduce the generation of bubbles and improve product quality.

[0036] Reference Figure 2 and Figure 3 A reset component 13 is provided inside the mounting block 9, and the reset component 13 includes two limit grooves 1301, and the two limit grooves 1301 are respectively opened on the left and right sides of the inside of the mounting block 9, and the inner wall of the limit groove 1301 is fixedly connected with a spring 1302, and the adjacent ends of the two springs 1302 are fixedly connected with the limit block 1303, and the inside of the limit groove 1301 is slidably connected to the outside of the limit block 1303, and the adjacent ends of the two limit blocks 1303 are fixedly connected with a clamping block 1304, and the inside of the limit groove 1301 and the outer side of the clamping block 1304 are slidably connected. Dynamic connection, the left and right sides of the interior of the filter plate 10 are provided with card slots 1305, the outside of the card block 1304 is engaged with the inside of the card slot 1305, and the interior of the mounting block 9 is provided with a pulling component 14, the pulling component 14 includes two pull ropes 1401, the two pull ropes 1401 are respectively fixedly connected to the separated ends of the two limit blocks 1303, the interior of the mounting block 9 is slidably connected to the outside of the pull ropes 1401, the proximal ends of the two pull ropes 1401 are fixedly connected with a rotating rod 1402, and the interior of the mounting block 9 is rotatably connected to the outside of the rotating rod 1402.

[0037] Specifically, the limiting groove 1301 and the limiting block 1303 fix the spring 1302, so that the spring 1302 can stably perform elastic deformation, the limiting groove 1301 limits the limiting block 1303 and the clamping block 1304, so that the limiting block 1303 and the clamping block 1304 will not deviate when they move, and the mounting block 9 limits the pull rope 1401 and the rotating rod 1402, so that the pull rope 1401 is stable when it moves and the rotating rod 1402 is rotated, and the rotating rod 1402 is rotated, thereby driving the two pull ropes 1401 to move toward the end close to each other, and then driving the two limiting blocks 1303 to move toward the end away from each other, thereby squeezing the spring 13 02 is elastically deformed, thereby driving the two blocking blocks 1304 to move toward the separated end, so that the blocking block 1304 is disengaged from the card slot 1305, and the filter plate 10 can be conveniently taken out for cleaning and replacement, so that the clean filter plate 10 is placed in the mounting block 9, and then the spring 1302 is reset, thereby driving the two limit blocks 1303 to move toward the close end, and then driving the blocking block 1304 to move with it, so that the blocking block 1304 is engaged with the card slot 1305, so that the position of the filter plate 10 is fixed, so that the filter plate 10 can be conveniently cleaned and replaced, thereby ensuring the service life of the exhaust system.

[0038] Working principle: When it is necessary to extract the air inside the lower mold 2 and the upper mold 5, the vacuum pump 6 is started to operate, so that the air inside the mold is evenly extracted through the four vacuum heads 12, and then the air is sent to the mounting block 9 through the vacuum pipe 11 for filtration, and then the air is transported to the vacuum pump 6 through the connecting pipe 7 and then discharged, so that the air inside the lower mold 2 and the upper mold 5 can be discharged;

[0039] When the clogged filter plate 10 needs to be cleaned and replaced, the rotating rod 1402 is rotated to drive the two pull ropes 1401 to move toward the adjacent end, thereby driving the two limit blocks 1303 to move toward the separated end, thereby squeezing the spring 1302 to make elastic deformation, thereby driving the two clamping blocks 1304 to move toward the separated end, so that the clamping blocks 1304 are disengaged from the clamping slots 1305, and then the filter plate 10 can be conveniently taken out for cleaning and replacement, thereby placing the clean filter plate 10 in the mounting block 9, and then the spring 1302 is reset to move, thereby driving the two limit blocks 1303 to move toward the adjacent end, thereby driving the clamping blocks 1304 to move with them, so that the clamping blocks 1304 are engaged with the clamping slots 1305, and then the position of the filter plate 10 is fixed, thereby completing the cleaning and replacement of the clogged filter plate 10.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum mold, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a lower mold (2); the four corners of the top of the workbench (1) are fixedly connected to electric telescopic rods (3); the output ends of the four electric telescopic rods (3) are fixedly connected to a top plate (4); the bottom end of the top plate (4) is fixedly connected to an upper mold (5); the inside of the workbench (1) is fixedly connected to a vacuum pump (6); the output end of the vacuum pump (6) is fixedly connected to a connecting pipe (7); the left and right sides of the inside of the workbench (1) are fixedly connected to fixed blocks (8); the adjacent ends of the two fixed blocks (8) are fixedly connected to mounting blocks (9); the inside of the mounting blocks (9) is slidably connected to a filter plate (10); the top of the filter plate (10) is fixedly connected to an exhaust pipe (11); the outside of the exhaust pipe (11) is fixedly connected to an exhaust head (12); a reset component (13) is provided inside the mounting block (9); and a pulling component (14) is provided inside the mounting block (9).

2. The vacuum mold according to claim 1, characterized in that: The reset assembly (13) comprises two limit grooves (1301), the two limit grooves (1301) are respectively arranged on the left and right sides of the interior of the mounting block (9), the inner wall of the limit groove (1301) is fixedly connected with a spring (1302), the adjacent ends of the two springs (1302) are fixedly connected with a limit block (1303), the adjacent ends of the two limit blocks (1303) are fixedly connected with a clamping block (1304), and the inner left and right sides of the filter plate (10) are both provided with clamping grooves (1305).

3. The vacuum mold according to claim 2, characterized in that: The pulling assembly (14) comprises two pull ropes (1401), the two pull ropes (1401) are respectively fixedly connected to the separated ends of the two limit blocks (1303), and the adjacent ends of the two pull ropes (1401) are fixedly connected to the rotating rod (1402).

4. The vacuum mold according to claim 1, characterized in that: The outside of the air extraction pipe (11) is fixedly connected to the inside of the workbench (1), and the four air extraction pipes (11) are arranged in a cross shape.

5. The vacuum mold according to claim 1, characterized in that: The outside of the vacuum head (12) is fixedly connected to the inside of the lower mold (2), and the top end of the connecting pipe (7) is connected to the bottom end of the filter plate (10).

6. The vacuum mold according to claim 2, characterized in that: The interior of the limiting groove (1301) is slidably connected to the exterior of the limiting block (1303), and the interior of the limiting groove (1301) is slidably connected to the exterior of the clamping block (1304).

7. The vacuum mold according to claim 2, characterized in that: The outside of the card block (1304) is engaged with the inside of the card slot (1305).

8. The vacuum mold according to claim 3, characterized in that: The interior of the mounting block (9) is slidably connected to the exterior of the pull rope (1401), and the interior of the mounting block (9) is rotatably connected to the exterior of the rotating rod (1402).

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