Frame waste punching die and punching machine

Abstract

The utility model relates to the technical field of molds, and in particular to a frame waste punching mold and a punching machine. The frame waste punching mold comprises an upper mold and a lower mold; the upper mold comprises an upper mold base, an upper pad, an upper clamping plate, a stop plate, and an upper stripping plate arranged in sequence from top to bottom; a positioning groove and a plurality of first cutters are arranged on the upper stripping plate; a blanking frame is arranged on the inner side of the positioning groove; a receiving groove is arranged inside the blanking frame; the lower mold comprises a lower mold base, a lower clamping plate, and a positioning frame arranged in sequence from bottom to top; a plurality of second cutters are arranged on the outer side of the positioning frame, and a blanking port is arranged inside the positioning frame; the positioning groove can press the product on the positioning frame. The first cutter and the second cutter can close and cut off the first waste material (edge ​​material) on the outer side of the product, and the blanking frame can press off the second waste material (flow channel waste and nozzle material) on the inner side of the product, and the second waste material falls into the blanking port. Therefore, this frame waste punching mold can complete the cutting of edge material and nozzle material in a single time, and the work efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a frame waste punching mold and a punching machine. Background Art

[0002] There are some cabinets on the market that are assembled from plastic parts. Such cabinets usually include frames, crossbars, vertical poles, etc. The frames are injection molded, and then the various accessories are assembled together. After the frame is injection molded, there are still a lot of waste materials connected around the frame and inside the frame. These waste materials are usually cut off by punching in production. However, some molds can only cut off the sprue material / edge material at a time, and cannot cut off the sprue material and edge material at the same time, which has low work efficiency.

[0003] For example: Chinese patent application number: CN202320433271.0 A quick cutting structure for the glue feed head of an injection mold, and Chinese patent application number: CN202222436887.1 A nozzle cutting device for an injection molded part can only cut off the nozzle material, but cannot cut off the side material at the same time, resulting in low work efficiency.

[0004] Another example is China's patent application number: CN201920052301.7, which is a cutting device for automatically cutting off the edge material outside the mold. It can only cut off the edge material but not the sprue material, and the working efficiency is low. Utility Model Content

[0005] In view of this, the utility model aims at the deficiencies of the prior art, and its main purpose is to provide a frame waste punching die, which can cut off the nozzle material and the edge material at the same time with high working efficiency, thereby overcoming the shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The present application provides a frame waste punching die, comprising an upper die and a lower die; the upper die comprises an upper die seat, an upper pad, an upper clamping plate, a stop plate, and an upper stripping plate arranged in sequence from top to bottom; the upper stripping plate is provided with a positioning groove and a plurality of first cutting knives, and the first cutting knives are arranged on the outer side of the positioning groove; a blanking frame is arranged on the inner side of the positioning groove; the blanking frame protrudes from the upper stripping plate, and a receiving groove is arranged inside the blanking frame;

[0008] The lower die includes a lower die base, a lower clamping plate, and a positioning frame which are arranged in sequence from bottom to top; a plurality of second cutters are arranged on the outer side of the positioning frame, and a blanking opening is arranged inside the positioning frame; the positioning groove can press the product on the positioning frame, the first cutter and the second cutter can close and cut off the first waste material on the outer side of the product, and the blanking frame can press off the second waste material on the inner side of the product, and the second waste material falls into the blanking opening.

[0009] Preferably, the first cutting knife and the second cutting knife form a frame shape.

[0010] Preferably, a flexible pad is adhered inside the positioning groove.

[0011] Preferably, the frames of the blanking frame are connected together through dovetail grooves and dovetail blocks.

[0012] Preferably, the blanking frame is provided with a third cutting knife.

[0013] Preferably, the blanking frame is provided with a first mounting hole, a spring is provided in the first mounting hole, and the handle of the third cutter is inserted into the first mounting hole and can compress the spring.

[0014] Preferably, the lower die base is provided with two support plates, a waste basket is provided between the support plates, and the second waste falls into the waste basket.

[0015] Preferably, positioning posts are provided at corners of the upper release plate, and positioning holes are provided on the lower clamping plate, and the positioning posts can be inserted into the positioning holes.

[0016] Preferably, the positioning frame is provided with a plurality of pressure sensors, which can be triggered by the product.

[0017] A punching machine comprises the frame waste punching die, the frame waste punching die is arranged on a machine platform, and a safety grating and an operation button are arranged on the front of the machine platform.

[0018] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the frame waste punching die includes an upper die and a lower die. A positioning groove and a plurality of first cutters are arranged on the upper stripping plate of the upper die, and the first cutters are arranged on the outer side of the positioning groove. A blanking frame is arranged on the inner side of the positioning groove, and the blanking frame protrudes from the upper stripping plate. A receiving groove is arranged inside the blanking frame to reserve a space for the nozzle material. A plurality of second cutters are arranged on the outer side of the positioning frame, and a blanking port is arranged inside the positioning frame. When the upper die and the lower die are closed, the first cutter and the second cutter can be closed to cut off the first waste material (edge ​​material) on the outer side of the product, and the blanking frame can press off the second waste material (flow channel waste and nozzle material) on the inner side of the product, and the second waste material falls into the blanking port. Therefore, the frame waste punching die can complete the cutting of the edge material and nozzle material in a single time, and the work efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the mold closing state of an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the mold opening state of an embodiment of the utility model.

[0021] Figure 3 It is a partial structural decomposition schematic diagram of an embodiment of the utility model.

[0022] Figure 4 It is a partial structural decomposition schematic diagram of an embodiment of the utility model.

[0023] Figure 5 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0024] Description of the accompanying drawings:

[0025] 10. Upper die; 11. Upper die seat; 12. Upper pad; 13. Upper clamping plate; 14. Stop plate; 15. Upper stripping plate; 16. Positioning groove; 17. First cutter; 18. Positioning column; 110. Blanking frame; 111. Third cutter; 112. Spring; 113. First waste material; 20. Lower die; 21. Lower die seat; 22. Lower clamping plate; 23. Positioning frame; 24. Blanking port; 25. Second cutter; 26. Second waste material; 27. Support plate; 28. Positioning hole; 29. ​​Pressure sensor; 30. Product. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0027] Please refer to Figures 1 to 5 As shown, it shows the specific structure of the preferred embodiment of the utility model, which is a frame waste punching die.

[0028] The first cutter 17 and the second cutter 25 are closed to cut off the first waste material 113 (edge ​​material) on the outside of the product 30, and the blanking frame 110 presses off the second waste material 26 (flow channel waste and sprue material) on the inside of the product 30, and the second waste material 26 falls into the blanking port 24, which improves the working efficiency.

[0029] The present application provides a frame waste punching die, including an upper die 10 and a lower die 20; the upper die 10 includes an upper die base 11, an upper pad 12, an upper clamping plate 13, a stop plate 14, and an upper stripping plate 15 arranged in sequence from top to bottom; the upper stripping plate 15 is provided with a positioning groove 16 and a plurality of first cutters 17, and the first cutters 17 are arranged on the outer side of the positioning groove 16; a blanking frame 110 is arranged on the inner side of the positioning groove 16; the blanking frame 110 protrudes from the upper stripping plate 15, and a receiving groove is arranged inside the blanking frame 110. The upper die 10 and the lower die 20 are arranged on a machine platform, and a safety grating and an operating button are arranged on the front of the machine platform. The upper die base 11, the upper pad 12, the upper clamping plate 13, the stop plate 14, and the upper stripping plate 15 are preferably fixed together by screws. The positioning groove 16 is contoured to fit the outer wall of the product 30. The receiving groove inside the blanking frame 110 reserves a receiving space for the nozzle material, so that the product 30 can be completely placed in the mold for subsequent cutting. The blanking frame 110 protrudes from the upper stripping plate 15, so that the blanking frame 110 presses on the second waste material 26, so that the second waste material 26 and the product 30 are separated.

[0030] The lower die 20 includes a lower die base 21, a lower clamping plate 22, and a positioning frame 23 which are arranged in sequence from bottom to top; a plurality of second cutters 25 are arranged on the outer side of the positioning frame 23, and a blanking opening 24 is arranged inside the positioning frame 23; the positioning groove 16 can press the product 30 on the positioning frame 23, the first cutter 17 and the second cutter 25 can be closed to cut off the first waste material 113 on the outer side of the product 30, and the blanking frame 110 can break the second waste material 26 on the inner side of the product 30, and the second waste material 26 falls into the blanking opening 24. The lower die base 21, the lower clamping plate 22, and the positioning frame 23 are preferably fixed together by screws. The positioning frame 23 is contoured, and its structure is adapted to the inner wall of the product 30. Working principle of frame waste punching die: 1. Workers / manipulators embed the product 30 in the positioning frame 23. 2. The upper die 10 and the lower die 20 are closed, and the positioning groove 16 presses the product 30 on the positioning frame 23. The first cutter 17 and the second cutter 25 are closed to cut off the first waste 113 outside the product 30. The blanking frame 110 presses against the second waste 26, so that the product 30 and the second waste 26 are separated, and the second waste 26 falls into the waste basket from the blanking port 24. This type of die has higher working efficiency. 3. The mold is opened, and the worker / manipulator takes away the product 30.

[0031] Preferably, the first cutter 17 and the second cutter 25 are surrounded to form a frame shape. There are multiple first cutters 17 and second cutters 25, and each set of first cutters 17 and second cutters 25 corresponds to a piece of first waste material 113. The handles of the first cutter 17, the second cutter 25, and the third cutter 111 in this embodiment can be T-shaped for easy installation. Of course, the first cutter 17, the second cutter 25, and the third cutter 111 can also be installed using pins or screws.

[0032] Preferably, a flexible pad is attached to the interior of the positioning groove 16. The flexible pad is preferably a rubber pad or an elastic plastic pad. The flexible pad in this embodiment is arranged on the bottom wall of the positioning groove 16, so that the top of the product 30 is just pressed on the flexible pad, which can effectively prevent the product 30 from being scratched.

[0033] Preferably, the frames of the blanking frame 110 are connected together by dovetail grooves and dovetail blocks. The blanking frame 110 and the positioning frame 23 of this embodiment are assembled from multiple frames. The blanking frame 110 is assembled from four frames, and the dovetail grooves and dovetail blocks are used to lock the frames together, so the structure is very strong and more convenient for processing.

[0034] Preferably, the blanking frame 110 is provided with a third cutter 111. The third cutter 111 may be multiple or a whole piece. The third cutter 111 can separate the product 30 from the second waste material 26. When working, the third cutter 111 cuts off the connection between the product 30 and the runner waste, and the edge material is also closed and cut by the first and second cutters 25.

[0035] Preferably, the blanking frame 110 is provided with a first mounting hole, a spring 112 is provided in the first mounting hole, and the handle of the third cutter 111 is inserted into the first mounting hole and can compress the spring 112. When the mold is closed, the handle of the third cutter 111 will compress the spring 112, and when the spring 112 is compressed to a certain amount, the third cutter 111 cuts off the second waste material 26. The spring 112 provides a certain buffer for the third cutter 111 to avoid reducing noise, and is also more conducive to ensuring the cutting quality.

[0036] Preferably, the lower die base 21 is provided with two support plates 27, and a waste basket is provided between the support plates 27, into which the second waste material 26 falls. The support plates 27 can suspend the die, and the second waste material 26 will fall into the waste basket from the drop opening 24 after being cut.

[0037] Preferably, the corners of the upper stripping plate 15 are provided with positioning posts 18, and the lower clamping plate 22 is provided with positioning holes 28, into which the positioning posts 18 can be inserted. When closed, the positioning posts 18 are inserted into the positioning holes 28 to ensure the mold clamping accuracy of the mold.

[0038] Preferably, the positioning frame 23 is provided with a plurality of pressure sensors 29, which can be triggered by the product 30. The positioning frame 23 is provided with a second mounting hole, and the pressure sensor 29 is arranged in the second mounting hole. When the product 30 is placed on the positioning frame 23, the product 30 will press on the pressure sensor 29. The pressure sensor 29 can determine whether the product 30 is accurately in place.

[0039] A punching machine comprises the frame waste punching die, the frame waste punching die is arranged on a machine platform, and a safety grating and an operation button are arranged on the front of the machine platform.

[0040] In summary, the design focus of the utility model is that when the mold is closed, the first cutter 17 and the second cutter 25 can close and cut off the first waste material 113 (edge ​​material) outside the product 30, and the blanking frame 110 can press the second waste material 26 (flow channel waste material and nozzle material) inside the product 30, and then the second waste material 26 falls into the waste basket from the blanking port 24. Therefore, this frame waste punching mold can complete the cutting of edge material and nozzle material in a single time, and the work efficiency is higher.

[0041] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A frame waste punching die, characterized in that: It comprises an upper die and a lower die; the upper die comprises an upper die seat, an upper pad, an upper clamping plate, a stop plate, and an upper stripping plate which are arranged in sequence from top to bottom; the upper stripping plate is provided with a positioning groove and a plurality of first cutting knives, and the first cutting knives are arranged on the outer side of the positioning groove; a blanking frame is arranged on the inner side of the positioning groove; the blanking frame protrudes from the upper stripping plate, and a receiving groove is arranged inside the blanking frame; The lower die includes a lower die base, a lower clamping plate, and a positioning frame which are arranged in sequence from bottom to top; a plurality of second cutters are arranged on the outer side of the positioning frame, and a blanking opening is arranged inside the positioning frame; the positioning groove can press the product on the positioning frame, the first cutter and the second cutter can close and cut off the first waste material on the outer side of the product, and the blanking frame can press off the second waste material on the inner side of the product, and the second waste material falls into the blanking opening.

2. A frame waste punching die according to claim 1, characterized in that: The first cutting knife and the second cutting knife form a frame shape.

3. A frame waste punching die according to claim 1, characterized in that: A flexible pad is pasted inside the positioning groove.

4. A frame waste punching die according to claim 1, characterized in that: The frames of the blanking frame are connected together through dovetail grooves and dovetail blocks.

5. A frame waste punching die according to claim 1 or 4, characterized in that: The blanking frame is provided with a third cutting knife.

6. A frame waste punching die according to claim 5, characterized in that: The blanking frame is provided with a first mounting hole, a spring is arranged in the first mounting hole, and the handle of the third cutter is inserted into the first mounting hole and can compress the spring.

7. A frame waste punching die according to claim 1, characterized in that: The lower die base is provided with two support plates, a waste basket is provided between the support plates, and the second waste falls into the waste basket.

8. A frame waste punching die according to claim 1, characterized in that: Positioning posts are arranged at the corners of the upper stripping plate, and positioning holes are arranged at the lower clamping plate, into which the positioning posts can be inserted.

9. A frame waste punching die according to claim 1, characterized in that: The positioning frame is provided with a plurality of pressure sensors, which can be triggered by the product.

10. A punching machine, characterized in that: The invention comprises the frame waste punching die according to any one of claims 1 to 9, wherein the frame waste punching die is arranged on a machine platform, and a safety grating and an operation button are arranged on the front of the machine platform.

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