Automatic waste cleaning device for punching and brightening

Abstract

The present application relates to the technical fields of die cutting processing, in particular to a kind of automatic waste cleaning device of punching and brightening, comprising: lower cutting die base;Upper die unit, it includes the guide column being installed on the lower cutting die base, and upper die plate is movably installed on the guide column, the side clamping plate is arranged below the upper die plate;Die cutting part, it includes plug, upper die pressing block and foam, the plug is installed below the upper die plate, and the upper die pressing block is installed in the bottom end of the plug.The waste groove is opened in the upper die pressing block of die cutting part, and blow material site and material receiving site are respectively arranged at both ends of waste groove, and the waste material after punching is directly blown into material guide pipe and collected in net bag using high-pressure gas, the instant automatic cleaning of waste material after each die punching is realized.The structure completely replaces the operation mode that manual cleaning waste material is needed in traditional upward suction waste process, avoids the problem of waste material residue caused by uneven suction.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology, and in particular to an automatic waste removal device for punching, brightening, and cleaning. Background Technology

[0002] In the production of backlight modules, the perforation process of the brightness enhancement film is one of the key steps affecting product yield and production efficiency. With the market's increasing demands for backlight product quality and intensifying price competition, manufacturers are placing higher demands on the refined control of the process. Among these, the issue of waste material removal after perforation is particularly prominent.

[0003] Currently, the most common waste removal method in the industry is the "upward suction" process. This process involves setting up a suction channel inside the mold to suck away the waste material from the punched blind holes using negative pressure. However, this method has revealed the following problems in actual production: First, due to uneven suction distribution and irregular shapes of the waste material, some waste cannot be effectively removed and remains inside the mold. Operators need to stop the machine periodically to manually clean the waste inside the mold, typically once every 100 punching cycles, which seriously affects production continuity.

[0004] Second, due to frequent shutdowns for cleaning, the cutting efficiency of traditional processes is only 3800–4500 times / hour, which cannot meet the efficiency requirements of mass production.

[0005] Third, the scattering of waste materials affects the workshop environment and product quality. During the cleaning process, waste materials are easily scattered, which not only makes 5S management in the workshop difficult, but may also be caught in the material strip, resulting in defects such as missed suction, double cutting, and fuzz in the subsequent die-cutting process, affecting the luminous effect and forming serious quality defects.

[0006] Fourth, there is a risk of missed waste material collection, increasing the inspection burden. Even with the addition of blind hole inspection devices, the problem of waste residue cannot be fundamentally solved, and the machine needs to be stopped again after inspection, further affecting production. Therefore, an automatic waste removal device for drilling and brightening is needed to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to solve the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An automatic waste removal device for drilling and brightening, comprising: Lower cutting die base; The upper mold unit includes a guide column installed on the lower mold cutting machine base, and an upper template movably installed on the guide column, with a side clamping plate provided below the upper template; The die-cutting part includes an insert block, an upper die pressing block, and foam. The insert block is installed below the upper template, the upper die pressing block is installed at the bottom of the insert block, the upper die pressing block has a through waste groove inside, the foam is disposed at the bottom of the upper die pressing block, and one end of the foam has a suction hole adapted to the position of the waste groove. The blowing part includes a threaded pipe A, an air inlet pipe and a docking cap A. The threaded pipe A is fixed to one end of the waste groove on the surface of the upper mold pressing block. The docking cap A is threadedly sleeved on the surface of the threaded pipe A. The air inlet pipe is connected to the docking cap A. The receiving part includes a threaded pipe B, a feed pipe and a mesh bag. The threaded pipe B is fixed to the other end of the waste trough on the surface of the upper mold block. One end of the feed pipe is connected to the threaded pipe B, and the mesh bag is connected to the other end of the feed pipe.

[0009] Preferably, the die-cutting part further includes an inner mold pad, the top of the insert block is slidably embedded under the inner mold pad through the rail groove and fixed by bolts, the inner mold pad is slidably inserted between two opposing side plates, and the side of the side plates is fixed to the inner mold pad by bolts.

[0010] Preferably, the blowing part further includes an air source interface cap, which is rotatably installed on the end of the air inlet pipe away from the docking cap A, for connecting with the air outlet of an external air source device.

[0011] Preferably, the intake pipe consists of a smooth pipe end and a corrugated pipe end.

[0012] Preferably, the receiving part further includes a threaded straight tube and a knob, one end of the threaded straight tube is connected to the feed tube, the other end of the threaded straight tube is threaded onto the surface of the threaded tube opening B, and the knob is disposed on the surface of the threaded straight tube.

[0013] Preferably, the diameter of the feed tube gradually increases from left to right.

[0014] Preferably, the feed tube consists of a corrugated tube end and a flared tube end.

[0015] Preferably, the receiving part further includes a connecting pipe, the end of the feed pipe is fitted with the connecting pipe, and the end of the connecting pipe is connected to the net bag.

[0016] Preferably, the receiving part further includes a clamp, a snap-fit ​​groove is provided on the right side of the feed pipe, and a rubber sleeve structure is provided on the left side of the connecting pipe. The rubber sleeve is wrapped and fastened to the snap-fit ​​groove surface of the feed pipe, and the clamp is fastened to the connecting end of the connecting pipe and the feed pipe.

[0017] This invention has at least the following beneficial effects: 1. This invention achieves real-time automatic cleaning of waste material after each die-cutting process by creating a through-hole waste trough inside the upper die block of the die-cutting section, and setting a blowing part and a receiving part at both ends of the waste trough. High-pressure gas is used to blow the blind hole waste material after punching directly into the feed pipe along the waste trough and collect it in a mesh bag, realizing immediate automatic cleaning of waste material after each die-cutting process. This structure completely replaces the traditional upward suction waste process that requires manual shutdown to clean the waste material, avoiding the problem of waste material residue caused by uneven suction.

[0018] 2. This invention, through the synergistic action of the blowing and receiving parts, ensures that all blind hole waste after each die-cutting is completely removed, preventing waste residue from being rolled into the strip and effectively eliminating serious quality defects such as missed suction, double cutting, and fuzz caused by waste leakage in traditional processes. This structure eliminates the impact of waste on subsequent die-cutting from the source of the process, making it particularly suitable for backlight enhancement products with stringent requirements for luminous effect, significantly reducing customer complaint risks and improving product yield and quality stability.

[0019] 3. This invention achieves modular assembly of the die-cutting section through the sliding embedding and bolt fixing structure between the inner mold pad, insert block, and side clamping plate, facilitating quick replacement of molds of different specifications and enhancing the versatility of the device. Simultaneously, the air inlet pipe adopts a flexible structure combining corrugated and smooth pipes, adapting to the reciprocating movement of the upper mold plate and preventing pipe pulling damage. The material receiving section achieves quick assembly and disassembly through threaded straight pipes and knobs, and the cooperation structure of snap-fit ​​grooves, rubber sleeves, and clamps ensures that the material inlet pipe and the connecting pipe do not detach under the impact of high-pressure airflow, improving the long-term reliability of the equipment.

[0020] 4. This invention employs a gradually expanding structure for the feed pipe, with the diameter increasing from left to right. This allows the waste material, propelled by high-speed airflow, to enter the pipe and then decelerate and move smoothly as the cross-sectional area increases, effectively preventing waste accumulation and blockage in the later stages of the pipe. Furthermore, the feed pipe utilizes a composite structure combining corrugated and flared ends, ensuring flexibility in pipeline layout to adapt to different workshop layouts, while also further improving the smoothness of waste material transport and ensuring a stable and reliable automatic waste removal process. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the external structure of an automatic waste removal device for drilling and brightening proposed in this invention; Figure 2 This is a schematic diagram of the external structure of an automatic waste removal device for punching and brightening proposed in this invention, viewed from below. Figure 3 This is a three-dimensional structural diagram of the die-cutting part in an automatic waste removal device for punching and brightening proposed in this invention; Figure 4 This is a three-dimensional disassembly diagram of the die-cutting part in an automatic waste removal device for punching and brightening proposed in this invention; Figure 5 This is a top view schematic diagram of an automatic waste removal device for drilling and brightening proposed in this invention; Figure 6 This is a schematic diagram of the connection structure between the die-cutting part, the blowing part, and the receiving part in an automatic waste removal device for punching and brightening proposed in this invention. Figure 7 This is a three-dimensional bottom view of the die-cutting part, the blowing part, and the receiving part in an automatic waste removal device for punching and brightening proposed in this invention. Figure 8 This is a three-dimensional disassembly diagram of the receiving part in an automatic waste removal device for punching and brightening proposed in this invention.

[0023] In the picture: 1. Lower cutting die base; 2. Upper mold unit; 21. Upper template; 22. Guide column; 23. Side clamping plate; 3. Die-cutting area; 31. Insert block; 32. Upper die pressing block; 33. Foam; 34. Inner die pad; 4. Material blowing section; 41. Threaded pipe port A; 42. Air inlet pipe; 43. Connecting cap A; 44. Air source interface cap; 5. Material receiving part; 51. Threaded pipe port B; 52. Threaded straight pipe; 53. Knob; 54. Feed pipe; 55. Clamp; 56. Connecting pipe; 57. Mesh bag. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] Description of the comprehensive structural features of the invention; Reference Figure 1-8 An automatic waste removal device for drilling and brightening, comprising: Lower cutting die base 1; The upper mold unit 2 includes a guide column 22 installed on the base of the lower mold cutting machine 1, and an upper template 21 is movably installed on the surface of the guide column 22. A side clamping plate 23 is provided below the upper template 21. The die-cutting part 3 includes an insert block 31, an upper die pressing block 32 is installed at the bottom of the insert block 31, a through waste groove is opened inside the upper die pressing block 32, foam 33 is provided at the bottom of the upper die pressing block 32, and a suction hole adapted to the position of the waste groove is opened on one side of the foam 33. The blowing part 4 includes an air inlet pipe 42 for guiding high-pressure airflow. A docking cap A43 is connected to the right side of the air inlet pipe 42, and the docking cap A43 is threaded onto the surface of the threaded pipe opening A41. The threaded pipe opening A41 is fixed to one end of the waste groove on the surface of the upper die pressing block 32 by bolts. The receiving part 5 includes a material inlet pipe 54 for receiving materials, and a connecting pipe 56 is attached to the end of the material inlet pipe 54, and a mesh bag 57 is connected to the end of the connecting pipe 56.

[0026] The top of the insert block 31 is slidably embedded under the inner mold pad 34 through the rail groove and fixed with bolts. The inner mold pad 34 is slidably inserted between two opposing side clamping plates 23. The side clamping plates 23 are also fixed to the inner mold pad 34 by bolts.

[0027] An air source interface cap 44 is rotatably installed at the end of the air inlet pipe 42 away from the docking cap A43, and the air source interface cap 44 is connected to the air outlet of an external air source device through threads.

[0028] The intake pipe 42 consists of a smooth pipe end and a corrugated pipe end. The corrugated pipe end of the intake pipe 42 is designed to facilitate bending and slight stretching.

[0029] A threaded straight pipe 52 is connected to the left side of the feed pipe 54, and the threaded straight pipe 52 is threaded onto the surface of the threaded pipe opening B51. A knob 53 is provided on the surface of the threaded straight pipe 52. The threaded pipe opening B51 is fixed to the other end of the waste trough of the upper mold pressing block 32 by bolts.

[0030] The diameter of the feed pipe 54 gradually increases from left to right, and surface waste becomes blocked in the later section of the pipe.

[0031] The feed pipe 54 consists of a corrugated pipe end and a flared pipe end.

[0032] The feed pipe 54 has a snap-fit ​​groove on the right side of its surface, and the connecting pipe 56 has a rubber ring structure on the left side. The rubber ring is wrapped and fastened to the snap-fit ​​groove surface of the feed pipe 54. The connecting pipe 56 and the feed pipe 54 are fastened and reinforced by a clamp 55.

[0033] The following provides a detailed description through several embodiments;

[0034] Example 1; like Figures 1 to 8As shown, this embodiment provides an automatic waste removal device for punching and brightening, which includes a lower die-cutting machine base 1, an upper die-cutting unit 2, a die-cutting part 3, a blowing part 4, and a receiving part 5.

[0035] The lower die base 1 serves as the mounting foundation for the entire device, supporting the upper die assembly 2. The upper die assembly 2 includes guide columns 22 mounted on the lower die base 1 and an upper template 21 movably mounted on the guide columns 22. A side clamping plate 23 is provided below the upper template 21. When the punching action is performed, the upper template 21 moves up and down along the guide columns 22 to punch the material below.

[0036] The die-cutting part 3 includes an insert block 31, an upper die pressing block 32, and foam 33. The insert block 31 is installed below the upper template 21, and the upper die pressing block 32 is installed at the bottom of the insert block 31. The upper die pressing block 32 has a through-hole waste groove inside to form a waste discharge channel. The foam 33 is located at the bottom of the upper die pressing block 32, and one end of the foam 33 has a suction hole that matches the position of the waste groove. The foam 33 plays a buffering role during punching to protect the material surface. At the same time, its suction hole is connected to the waste groove to ensure that the blind hole waste after punching can smoothly enter the waste groove.

[0037] The blowing section 4 includes a threaded pipe A41, an air inlet pipe 42, and a mating cap A43. The threaded pipe A41 is fixed to one end of the waste groove on the surface of the upper die pressure block 32. The mating cap A43 is threaded onto the surface of the threaded pipe A41. The air inlet pipe 42 is connected to the mating cap A43. The other end of the air inlet pipe 42 is used to connect to an external high-pressure air source.

[0038] The receiving part 5 includes a threaded pipe B51, a feed pipe 54, and a mesh bag 57. The threaded pipe B51 is fixed to the other end of the waste trough on the surface of the upper mold pressing block 32. One end of the feed pipe 54 is connected to the threaded pipe B51, and the mesh bag 57 is connected to the other end of the feed pipe 54.

[0039] Technical effects: In this embodiment, a blowing section 4 and a receiving section 5 are respectively set at both ends of the waste trough of the upper die pressing block 32. After punching is completed, external high-pressure gas enters the waste trough through the air inlet pipe 42, blowing the blind hole waste in the waste trough along the waste trough to the feed pipe 54, and finally into the net bag 57 for collection. The whole process does not require manual shutdown for cleaning, realizing automatic waste removal. Compared with the traditional upward suction waste process, this device avoids the problem of waste residue caused by uneven suction. Continuous production does not require shutdown for cleaning. The cutting efficiency is increased from 3800-4500 times / hour in the traditional process to 7000-9000 times / hour. At the same time, it eliminates the phenomenon of waste scattering, effectively improves workshop management, and eliminates quality defects such as missed suction, double cutting, and fuzz caused by waste residue.

[0040] Example 2; Based on Embodiment 1, this embodiment further optimizes the connection structure of the die-cutting part 3. The die-cutting part 3 also includes an inner mold pad 34. The top of the insert block 31 is slidably embedded under the inner mold pad 34 through the rail groove and fixed with bolts. The inner mold pad 34 is slidably inserted between two opposing side clamping plates 23, and the sides of the side clamping plates 23 are fixed to the inner mold pad 34 by bolts.

[0041] Through the above structure, the insert block 31 and the inner mold pad 34 form a sliding and lockable modular combination. When it is necessary to change the mold of different specifications, simply loosen the bolts to pull the inner mold pad 34 out from between the side clamping plates 23 and replace the upper mold pressing block 32 with different waste trough structures, without disassembling the entire upper mold unit 2; This structure significantly improves mold changing efficiency and enhances the versatility of the device, making it suitable for different models of brightening and perforating products, especially adaptable to the production needs of various film counts, such as one-out-one or one-out-two.

[0042] Example 3; Based on Example 1, this example adds a design to the blowing part 4. The blowing part 4 also includes an air source interface cap 44, which is rotatably installed on the end of the air inlet pipe 42 away from the docking cap A43, for docking with the air outlet of an external air source device.

[0043] The air source interface cap 44 uses a threaded connection, allowing for quick connection or disconnection with standard air source interfaces in the workshop, facilitating equipment installation and maintenance. Simultaneously, the rotating installation structure prevents the air hose from twisting or tangling during connection, ensuring unobstructed airflow and improving the ease of use and reliability of the equipment.

[0044] Example 4; Based on Embodiment 1 or Embodiment 3, this embodiment optimizes the structure of the intake pipe 42. The intake pipe 42 consists of a smooth pipe end and a corrugated pipe end.

[0045] Among them, the smooth pipe end ensures the stability of airflow delivery and reduces turbulence generation; the corrugated pipe end provides good flexibility and small tensile strength, so that the air inlet pipe 42 can adapt to the position changes when the upper template 21 moves up and down, avoiding the pulling or fatigue fracture caused by rigid pipe connection. This structure effectively extends the service life of the pipeline while ensuring the stable delivery of high-pressure gas under dynamic operating conditions.

[0046] Example 5; Based on Embodiment 1, the connection structure of the receiving part 5 in this embodiment has been refined. The receiving part 5 also includes a threaded straight tube 52 and a knob 53. One end of the threaded straight tube 52 is connected to the feed tube 54, and the other end of the threaded straight tube 52 is threaded onto the surface of the threaded tube opening B51. The knob 53 is disposed on the surface of the threaded straight tube 52.

[0047] With the threaded engagement of the threaded straight pipe 52 and the threaded pipe port B51, the operator can quickly disassemble and assemble the waste tank by turning the knob 53, which facilitates regular cleaning or maintenance of the inside of the waste tank. This connection method has a compact structure and good sealing performance, which can effectively prevent high-pressure gas from leaking from the connection and ensure the efficiency of waste blowing.

[0048] Example 6; Based on Example 5, this example further defines the structure of the feed tube 54. The diameter of the feed tube 54 gradually increases from left to right.

[0049] The gradually expanding diameter design allows waste material to enter the feed pipe 54 under the propulsion of high-speed airflow. As the pipe cross-sectional area gradually increases, the airflow velocity decreases, and the movement of the waste material becomes more stable, effectively preventing blockage caused by excessive flow velocity in the later section of the pipe. At the same time, the gradually expanding structure also reduces the frictional resistance between the waste material and the pipe wall, allowing the waste material to be transported more smoothly into the mesh bag 57, further improving the reliability of automatic waste removal.

[0050] Example 7; Based on Example 6, this example optimizes the material and structure of the feed tube 54, which consists of a corrugated end and a flared end.

[0051] The corrugated pipe end provides bending freedom, allowing the feed pipe 54 to be flexibly turned according to the workshop layout, making it easy to connect to the waste collection container; the flared pipe end realizes the above-mentioned gradual expansion anti-clogging function. The combination of the two ensures both the flexibility of pipeline layout and the smoothness of waste material transportation, making it suitable for die-cutting equipment with various spatial layouts.

[0052] Example 8; Based on Example 1, this example has a supplementary design for the connection structure of the receiving part 5. The receiving part 5 also includes a connecting pipe 56. The end of the feed pipe 54 is fitted with the connecting pipe 56, and the end of the connecting pipe 56 is connected to a net bag 57.

[0053] The connecting pipe 56 enables a transitional connection between the feed pipe 54 and the mesh bag 57. When the mesh bag 57 is full of waste, the connecting pipe 56 can be directly separated from the feed pipe 54, and a new mesh bag 57 can be replaced or the original mesh bag can be emptied and reinstalled without disassembling the entire structure of the feed pipe 54. The operation is simple and quick.

[0054] Example 9; Based on Example 8, this example reinforces the mesh connection structure. The receiving part 5 also includes a clamp 55. A snap-fit ​​groove is provided on the right side of the surface of the feed pipe 54, and a rubber sleeve structure is provided on the left side of the connecting pipe 56. The rubber sleeve is wrapped and fastened to the snap-fit ​​groove surface of the feed pipe 54, and the clamp 55 is fastened to the connecting end of the connecting pipe 56 and the feed pipe 54.

[0055] The engagement of the snap-fit ​​groove and the rubber sleeve achieves initial positioning and sealing between the connecting pipe 56 and the feed pipe 54. Further tightening and reinforcement with the clamp 55 effectively prevents the connecting pipe 56 from accidentally detaching from the feed pipe 54 under high-pressure airflow, ensuring long-term operational reliability. Simultaneously, this structure is easy to assemble and disassemble, facilitating daily maintenance and waste collection.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic waste removal device for drilling, brightening, and cleaning, characterized in that, include: Lower cutting die base (1); The upper mold unit (2) includes a guide column (22) installed on the lower mold cutting machine base (1) and an upper template (21) movably installed on the guide column (22). A side clamping plate (23) is provided below the upper template (21). The die-cutting part (3) includes an insert block (31), an upper die pressing block (32) and foam (33). The insert block (31) is installed below the upper template (21), the upper die pressing block (32) is installed at the bottom of the insert block (31), the upper die pressing block (32) has a through waste groove inside, the foam (33) is set at the bottom of the upper die pressing block (32), and one end of the foam (33) has a suction hole adapted to the position of the waste groove. The blowing part (4) includes a threaded pipe A (41), an air inlet pipe (42) and a docking cap A (43). The threaded pipe A (41) is fixed to one end of the waste groove on the surface of the upper mold pressing block (32). The docking cap A (43) is threaded onto the surface of the threaded pipe A (41). The air inlet pipe (42) is connected to the docking cap A (43). The receiving part (5) includes a threaded pipe B (51), a feed pipe (54) and a mesh bag (57). The threaded pipe B (51) is fixed to the other end of the waste groove on the surface of the upper mold block (32). One end of the feed pipe (54) is connected to the threaded pipe B (51), and the mesh bag (57) is connected to the other end of the feed pipe (54).

2. The automatic waste removal device for drilling and brightening according to claim 1, characterized in that, The die-cutting part (3) also includes an inner mold pad (34). The top of the insert (31) is slidably embedded under the inner mold pad (34) through the rail groove and fixed with bolts. The inner mold pad (34) is slidably inserted between two opposing side plates (23). The side plates (23) are connected and fixed to the inner mold pad (34) by bolts.

3. The automatic waste removal device for drilling and brightening according to claim 1, characterized in that, The blowing part (4) also includes an air source interface cap (44), which is rotatably installed on the end of the air inlet pipe (42) away from the docking cap A (43) for docking with the air outlet of an external air source device.

4. The automatic waste removal device for drilling and brightening according to claim 1, characterized in that, The intake pipe (42) consists of a smooth pipe end and a corrugated pipe end.

5. The automatic waste removal device for drilling and brightening according to claim 1, characterized in that, The receiving part (5) also includes a threaded straight tube (52) and a knob (53). One end of the threaded straight tube (52) is connected to the feed tube (54), and the other end of the threaded straight tube (52) is threaded onto the surface of the threaded tube opening B (51). The knob (53) is located on the surface of the threaded straight tube (52).

6. The automatic waste removal device for drilling and brightening according to claim 5, characterized in that, The diameter of the feed tube (54) gradually increases from left to right.

7. The automatic waste removal device for drilling and brightening according to claim 6, characterized in that, The feed tube (54) consists of a corrugated end and a flared end.

8. The automatic waste removal device for drilling and brightening according to claim 1, characterized in that, The receiving part (5) also includes a connecting pipe (56), the end of the feed pipe (54) is fitted with the connecting pipe (56), and the end of the connecting pipe (56) is connected to the net bag (57).

9. The automatic waste removal device for drilling and brightening according to claim 8, characterized in that, The receiving part (5) also includes a clamp (55). A snap-fit ​​groove is provided on the right side of the surface of the feed pipe (54). The left side of the connecting pipe (56) is provided with a rubber ring structure. The rubber ring is wrapped and fastened to the snap-fit ​​groove surface of the feed pipe (54). The clamp (55) is fastened to the connecting end of the connecting pipe (56) and the feed pipe (54).

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