Waste discharge device for film products
By combining the ejector pin and the feeding hole of the waste discharge device with the guiding and limiting structure, the problem of residual waste material from the punching of film products is solved, achieving efficient waste removal and product quality assurance.
Patent Information
- Application Number
- CN202422828321.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-20
AI Technical Summary
In existing technologies, thin film products are prone to leaving residues during the punching process, making it difficult to guarantee production efficiency and yield. In particular, it is difficult to detect whether there are residual wastes at the punching locations for transparent film materials.
The waste removal device includes a waste removal upper mold and a waste removal lower mold. The waste removal ejector pin cooperates with the material discharge hole to eject the waste material in the punching hole to the material discharge groove. Combined with the guide column and the limit groove, it ensures accurate alignment. The material discharge groove is cleaned by the blowing device to achieve fast and accurate waste removal.
It improved production efficiency, avoided waste residue, increased product yield, and reduced testing difficulty and cost.
Smart Images
Figure CN223493406U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a waste discharge device for thin film products, and is applicable to the field of thin film processing technology. Background Technology
[0002] Thin film products are sheet materials with a thickness ranging from a single atom to several millimeters, made from resin, rubber, plastic, or other materials. Depending on the raw materials and manufacturing processes, thin film products have diverse functions and are widely used in industries such as electronic semiconductors and optical coating. During processing, thin film products typically require multi-layer films to be laminated using double-sided adhesive, then punched into the corresponding shape and structure in a die-cutting machine. The die-cutting waste is then removed, and the product is transferred to another film strip and wound up for subsequent use. Current technology removes die-cutting waste by attaching a protective film to the bottom layer of the film and controlling the die-cutting depth to avoid cutting through the protective film. After die-cutting, the waste is removed by pulling down the protective film. However, because the double-sided adhesive re-adhedes too quickly, waste easily remains on the product when the protective film is pulled down, making complete removal difficult and requiring manual inspection, significantly impacting production efficiency. Furthermore, since most diaphragm materials are transparent, it is difficult to quickly identify whether there is residual waste at the punching location, which cannot guarantee the detection effect and can easily affect the product yield. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model proposes a waste discharge device for thin film products.
[0004] The technical solution adopted by this utility model is as follows: a waste removal device for film products, including a worktable, a waste removal lower mold fixedly set on the worktable, a waste removal upper mold movable above the waste removal lower mold, and a driving device for driving the waste removal upper mold to move. The upper surface of the waste removal lower mold has a plurality of discharge holes whose number, position, and shape correspond to the holes and grooves on the film product. The waste removal lower mold also has a discharge groove located below and communicating with the plurality of discharge holes. The bottom of the waste removal upper mold is provided with waste removal ejector pins whose number, position, and shape correspond to the discharge holes. The waste removal device has at least two working states. When it is in the first working state, the waste removal upper mold is away from the waste removal lower mold. When the waste removal device is in the second working state, the waste removal upper mold is close to the waste removal lower mold, and the waste removal ejector pins are inserted into the corresponding discharge holes. After the film strip is punched by the punching equipment, it is conveyed to the worktable by the conveyor rollers. At this time, the waste removal device is in its first working state. The conveyor rollers pass the film products on the strip sequentially above the waste removal lower die, aligning the punched holes on the film products with the blanking holes. Then, the drive device drives the waste removal upper die to descend, putting the waste removal device into its second working state. This allows the waste removal ejector pins to push the waste material in the punched holes of the film products into the blanking trough. By using the waste removal ejector pins in conjunction with the blanking holes and the blanking trough, fast and accurate waste removal is achieved. This avoids the problem of incomplete waste removal caused by double-sided adhesive re-adhesion, which is a problem with traditional pull-type waste removal, thus improving production efficiency. It also avoids the inconvenience of subsequent inspection and the problem of waste residue caused by the transparency of the film material, ensuring the product yield.
[0005] Furthermore, the bottom of the upper waste discharge mold is equipped with at least two guide pillars, and the lower waste discharge mold is equipped with guide grooves whose number, position, and size correspond to the guide pillars. The lower end of the guide pillars is tapered, wider at the top and narrower at the bottom. When the waste discharge device is in the second working state, the guide pillars are inserted into the corresponding guide grooves. Through the guide pillars and guide grooves, the upper and lower waste discharge molds are precisely positioned to ensure accurate and complete waste discharge.
[0006] Furthermore, the length of the guide post is greater than that of the waste discharge ejector pin, ensuring that the guide post contacts the guide groove first when the upper and lower waste discharge molds are closed, and is pre-positioned and limited. This ensures accurate mold closing on the one hand, and prevents the waste discharge ejector pin from being damaged due to mold installation deviation on the other hand.
[0007] Furthermore, the surface of the waste removal die is provided with a limiting groove along the front-to-back direction to restrict the position of the film product strip. The width of the limiting groove is the same as the width of the film product strip, and several discharge holes are located within the limiting groove. When the product strip is conveyed by the conveyor rollers through the waste removal die, its position is restricted by the limiting groove, ensuring that the punching holes on the film product correspond precisely to the discharge holes. This ensures that waste is completely removed and also prevents damage to the product during the waste removal process.
[0008] Furthermore, the material discharge chute is located at the bottom of the waste discharge mold and runs through the left and right directions, making it convenient for production personnel to clean the waste material in the material discharge chute without stopping the machine or disassembling the mold, thus improving production efficiency.
[0009] Furthermore, the waste removal device also includes a blowing device installed on the workbench for removing waste from the material discharge chute. Specifically, the blowing device is an air gun, which allows production personnel to blow the waste from the material discharge chute out through the openings on the left and right sides, thereby improving waste removal efficiency.
[0010] Furthermore, the size of the feeding hole is greater than or equal to the size of the corresponding waste discharge pin, and the difference between the size of the feeding hole and the size of the corresponding waste discharge pin is 0~0.3mm. The size of the feeding hole is slightly larger than the size of the waste discharge pin. On the one hand, this facilitates the thorough removal of waste from the film product and prevents waste from sticking together. On the other hand, it avoids damaging other parts of the film product when the waste discharge pin is ejected, thus ensuring product quality.
[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0012] The waste removal device for thin film products in this utility model has a simple structure and low manufacturing difficulty and cost. By cooperating with the waste removal ejector pin and the feeding hole, the waste on the thin film product is ejected into the feeding trough below. This not only improves the waste removal efficiency and avoids the waste sticking caused by the double-sided tape re-adhesion, but also avoids the inconvenience of inspection and easy residue caused by the transparency of the film, thus improving the product yield. Attached Figure Description
[0013] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:
[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;
[0015] Figure 2 yes Figure 1 An enlarged view of the structure of region a in the illustrated embodiment;
[0016] Figure 3 yes Figure 1 The schematic diagram of the waste discharge lower mold in the embodiment shown;
[0017] Figure 4 yes Figure 1 The schematic diagram of the waste discharge upper mold in the embodiment shown;
[0018] The annotations in the attached figures are explained as follows:
[0019] 1. Workbench; 2. Waste discharge lower mold; 21. Material discharge hole; 22. Material discharge groove; 23. Guide groove; 24. Limiting groove; 3. Waste discharge upper mold; 31. Waste discharge ejector pin; 32. Guide column; 4. Drive device; 5. Blowing device. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "front," "back," "left," and "right" used in directional descriptions are defined according to the conveying direction of the film strip. Specifically, the incoming direction of the film strip is "front," and vice versa; when a person is facing forward, their left side is "left," and vice versa. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0022] Reference Appendix Figure 1-4The waste removal device for film products in this embodiment includes a workbench 1, a waste removal lower mold 2 fixedly mounted on the workbench 1, a waste removal upper mold 3 movably mounted above the waste removal lower mold 2, and a driving device 4 for driving the waste removal upper mold 3 to move. The upper surface of the waste removal lower mold 2 has a plurality of discharge holes 21 whose number, position, and shape correspond to the holes and grooves on the film product. The waste removal lower mold 2 also has a discharge groove 22 located below and communicating with the plurality of discharge holes 21. The bottom of the waste removal upper mold 3 is provided with waste removal ejector pins 31 whose number, position, and shape correspond to the discharge holes 21. The waste removal device has at least two working states. When it is in the first working state, the waste removal upper mold 3 is away from the waste removal lower mold 2. When the waste removal device is in the second working state, the waste removal upper mold 3 is close to the waste removal lower mold 2, and the waste removal ejector pins 31 are inserted into the corresponding discharge holes 21. After the film strip is punched by the punching equipment, it is conveyed to the worktable 1 by the conveyor rollers. At this time, the waste removal device is in the first working state. The conveyor rollers pass the film products on the strip sequentially above the waste removal lower die 2, and make the punching holes on the film products correspond to the material discharge holes 21. Then, the drive device 4 drives the waste removal upper die 3 to descend, so that the waste removal device enters the second working state, so that the waste removal ejector pin 31 can push the waste in the punching holes on the film products into the material discharge groove 22. By cooperating with the material discharge hole 21 and the material discharge groove 22, the waste removal is fast and accurate, avoiding the problem of incomplete waste removal caused by double-sided adhesive re-adhesion in traditional material pulling waste removal, thus improving production efficiency; it also avoids the problem of inconvenient subsequent inspection and easy waste residue caused by the transparency of the film material, thus ensuring the product yield.
[0023] In a more preferred embodiment, the bottom of the upper waste discharge mold 3 is further provided with at least two guide pillars 32, and the lower waste discharge mold 2 is provided with guide grooves 23 whose number, position, and size correspond to the guide pillars 32. The lower end of the guide pillars 32 is tapered, wider at the top and narrower at the bottom. When the waste discharge device is in the second working state, the guide pillars 32 are inserted into the corresponding guide grooves 23. Through the guide pillars 32 and the guide grooves 23, the upper waste discharge mold 3 and the lower waste discharge mold 2 are accurately positioned to ensure precise and complete waste discharge.
[0024] In a more preferred embodiment, the length of the guide post 32 is greater than that of the waste discharge ejector pin 31, ensuring that when the upper waste discharge mold 3 and the lower waste discharge mold 2 are closed, the guide post 32 contacts the guide groove 23 first and is pre-positioned and limited, which on the one hand ensures accurate mold closing, and on the other hand prevents the waste discharge ejector pin from being damaged due to mold installation deviation.
[0025] In a more preferred embodiment, the surface of the waste removal die 2 is provided with a limiting groove 24 along the front-to-back direction to limit the position of the film product strip. The width of the limiting groove 24 is the same as the width of the film product strip, and a plurality of discharge holes 21 are located within the limiting groove 24. When the product strip is conveyed by the conveyor roller through the waste removal die 2, its position is limited by the limiting groove 24, ensuring that the punching holes on the film product correspond precisely to the positions of the discharge holes 21. This ensures that waste is completely removed and also prevents damage to the product during the waste removal process.
[0026] In a more preferred embodiment, the material discharge chute 22 is located at the bottom of the waste discharge lower mold 2 and is arranged through the left and right directions, which makes it convenient for production personnel to clean the waste in the material discharge chute 22 without stopping the machine or disassembling the mold, thereby improving production efficiency.
[0027] In a more preferred embodiment, the waste removal device further includes a blowing device 5 disposed on the workbench 1 and used to remove waste from the material discharge chute 22. Specifically, the blowing device 5 is configured as an air gun, which allows production personnel to blow the waste in the material discharge chute 22 out through the openings on the left and right sides, thereby improving waste removal efficiency.
[0028] In a more preferred embodiment, the size of the feed hole 21 is greater than or equal to the size of the corresponding waste discharge pin 31, and the difference between the size of the feed hole 21 and the size of the corresponding waste discharge pin 31 is 0~0.3mm. The size of the feed hole 21 is slightly larger than the size of the waste discharge pin 31. This facilitates the thorough removal of waste from the film product and prevents waste from sticking together. On the other hand, it avoids damaging other parts of the film product when the waste discharge pin 31 is ejected, thus ensuring product quality.
[0029] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0030] The waste removal device for thin film products in this utility model has a simple structure and low manufacturing difficulty and cost. By cooperating with the waste removal ejector pin and the feeding hole, the waste on the thin film product is ejected into the feeding trough below. This not only improves the waste removal efficiency and avoids the waste sticking caused by the double-sided tape re-adhesion, but also avoids the inconvenience of inspection and easy residue caused by the transparency of the film, thus improving the product yield.
[0031] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.
Claims
1. A waste discharge device for thin film products, characterized in that: The device includes a workbench (1), a waste discharge lower mold (2) fixedly mounted on the workbench (1), a waste discharge upper mold (3) movable above the waste discharge lower mold (2), and a driving device (4) for driving the waste discharge upper mold (3) to move. The upper surface of the waste discharge lower mold (2) has a plurality of discharge holes (21) whose number, position, and shape correspond to the slots on the film product. The waste discharge lower mold (2) also has a plurality of discharge holes (21) located below and adjacent to the plurality of discharge holes (21). 1) A connected material discharge groove (22) is provided at the bottom of the upper waste discharge mold (3), and the number, position and shape of the waste discharge ejector pins (31) are corresponding to the material discharge hole (21). The waste discharge device has at least two working states. When it is in the first working state, the upper waste discharge mold (3) is away from the lower waste discharge mold (2). When the waste discharge device is in the second working state, the upper waste discharge mold (3) is close to the lower waste discharge mold (2), and the waste discharge ejector pins (31) are inserted into the corresponding material discharge hole (21).
2. The waste discharge device for thin film products according to claim 1, characterized in that: The waste discharge upper mold (3) is also provided with at least two guide pillars (32) at the bottom. The waste discharge lower mold (2) is provided with guide grooves (23) whose number, position and size are all corresponding to the guide pillars (32). The lower end of the guide pillars (32) is a cone shape with a larger upper end and a smaller lower end.
3. The waste discharge device for thin film products according to claim 2, characterized in that: The length of the guide post (32) is greater than that of the waste discharge pin (31).
4. The waste discharge device for thin film products according to claim 1, characterized in that: The surface of the waste discharge mold (2) is provided with a limiting groove (24) for limiting the position of the film product strip along the front-back direction. The width of the limiting groove (24) is the same as the width of the film product strip, and several of the discharge holes (21) are located in the limiting groove (24).
5. The waste discharge device for thin film products according to claim 1, characterized in that: The material discharge groove (22) is located at the bottom of the waste discharge lower mold (2) and is arranged through the left and right directions.
6. The waste discharge device for thin film products according to claim 1, characterized in that: The waste discharge device also includes a purging device (5) installed on the workbench (1) and used to remove waste from the material discharge chute (22).
7. The waste discharge device for thin film products according to claim 1, characterized in that: The size of the feed hole (21) is greater than or equal to the size of the corresponding waste discharge pin (31), and the difference between the size of the feed hole (21) and the size of the corresponding waste discharge pin (31) is 0~0.3mm.