Copper sheet glue coating reverse folding punching machine

By designing a copper sheet adhesive-coating reverse folding and punching machine, the automated and precise bonding of copper sheets and adhesive tape and double-sided adhesive coating were achieved, solving the problems of low efficiency and high labor costs in the existing copper sheet adhesive coating technology, and improving production efficiency and product quality.

CN223941651UActive Publication Date: 2026-02-24DONGGUAN HENGJIA AUTOMATION EQUIPMENT CO LTD
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Patent Information

Application Number
CN202422792716.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2026-02-24
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing copper sheet coating equipment suffers from problems such as large adhesion error between copper sheet and tape, uneven overlap of upper and lower tapes, large tape edge error, low production efficiency, need for manual assistance, and high labor costs.

Method used

Design a copper sheet adhesive coating and reverse folding punching machine, including a film roll placement rack, a material suction and conveying mechanism, a cutting mechanism, a reverse folding mechanism and a conveying mechanism. Through automated control, the copper sheet and the tape are accurately bonded, cut and reverse folded, and double-sided adhesive coating is completed automatically.

Benefits of technology

It improves the precision and efficiency of copper sheet coating, reduces labor costs, ensures complete adhesion between the copper sheet and the tape and the sealing of the coating, and enhances product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a copper sheet glue coating reverse folding punching machine, and particularly relates to the technical field of copper sheet glue coating, which comprises a case, a glue roll placing frame is arranged on one side of the top end of the case, a glue tape tension buffering mechanism is arranged on the glue roll placing frame, an arch frame is arranged on the top of the case on one side of the glue roll placing frame, and a supporting plate is arranged at the bottom of the arch frame. A material suction conveying mechanism is installed on the arch frame, a feeding frame is installed in the portion, on one side of the arch frame, of the machine box, a cutting mechanism is arranged at one end of the supporting plate, a reverse folding mechanism is arranged on one side of the cutting mechanism, and a first conveying mechanism is arranged on one side of the reverse folding mechanism. A pressing assembly matched with the first conveying mechanism is installed at one end of the punching table, a second conveying mechanism is arranged on one side of the punching table, and a punching frame is installed on the side face of the other end of the punching table. The utility model solves the problems of low efficiency and low product quality of manual and semi-manual operation, and has the advantages of automatic operation, labor saving and effective improvement of productivity and product quality.
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Description

Technical Field

[0001] This utility model relates to the field of copper sheet coating technology, and more specifically, to a copper sheet coating reverse folding punching machine. Background Technology

[0002] In DC-DC low-voltage high-current products, copper sheets are used as windings on both the primary and secondary sides to meet product performance requirements. To match the shape of the magnetic core, the copper sheets are generally designed to be toroidal (circular) both inside and out.

[0003] Currently, the coating of copper sheets is typically done manually, resulting in low production efficiency. Therefore, automated coating equipment has been developed. While this improves efficiency to some extent, the following drawbacks still exist in the coating process:

[0004] First, there is a certain error in the bonding between the copper sheet and the tape, and the upper and lower tapes do not overlap. After the tape is broken, there is a difference between the edge of the copper sheet and the edge of the tape, resulting in lower product quality.

[0005] Secondly, it cannot be automated for double-sided adhesive application, requiring manual assistance, which results in low productivity and high labor costs.

[0006] Therefore, a copper sheet coated with adhesive and reverse folding punching machine is proposed. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, this utility model provides a copper sheet adhesive-coated reverse folding punching machine to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: A copper sheet coating reverse folding punching machine includes a machine housing, a film roll placement rack installed on one side of the top of the machine housing, a tape tension buffer mechanism installed on the film roll placement rack, an arch frame installed on the top of the machine housing on one side of the film roll placement rack, a support plate installed at the bottom of the arch frame, a material suction and conveying mechanism installed on the arch frame, a feeding rack installed inside the machine housing on one side of the arch frame, a cutting mechanism provided at one end of the support plate, a reverse folding mechanism provided on one side of the cutting mechanism, and a first conveying mechanism provided on one side of the reverse folding mechanism;

[0009] A punching table is provided on the top of one end of the chassis. A pressing assembly that cooperates with the first conveying mechanism is installed on one end of the punching table. A second conveying mechanism is provided on one side of the punching table. A punching frame is installed on the other side of the punching table. A punching cylinder is installed on the punching frame. A knife for cutting excess tape on the copper sheet is installed at the bottom of the punching cylinder.

[0010] A first motor is installed on the film roll placement rack. The output end of the first motor is connected to a tape roller. An adjustment groove is provided at the bottom of one side of the tape roller. The adjustment groove is slidably engaged with the tape tension buffer mechanism. Multiple guide rollers are installed on the film roll placement rack.

[0011] Preferably, the top of the chassis has a through groove, the bottom of the through groove has a base frame, a slide rail is installed on one side of the base frame, and a transverse slider connected to the loading rack is slidably installed on each slide rail. A drag rod is welded to one side of the loading rack, a slide groove is opened on the base frame, a first cylinder is installed on one side of the slide groove, the drag rod is connected to the telescopic end of the first cylinder through the slide groove, proximity sensors that cooperate with the drag rod are provided on both sides of the slide groove, and two placement openings are opened on the loading rack, each placement opening has a material discharge cylinder installed in it.

[0012] Preferably, the tape tension buffer mechanism includes a vertical rail, a lifting slide, a locking button, and a tension adjusting roller. The vertical rail is installed on one side of the adjusting groove, and the lifting slide is slidably installed on the vertical rail. A screw hole is opened in the middle of the lifting slide, and a locking button that abuts against the vertical rail is installed in the screw hole. A tension adjusting roller that slides with the adjusting groove is installed on one side of the lifting slide.

[0013] Preferably, the material conveying mechanism includes a movable module frame, a movable base, a fixed frame, an electric push rod, a lifting slider, a vacuum generator, and a vacuum nozzle. The movable module frame is mounted on an arch frame, and a servo module is installed inside the movable module frame. The servo module is connected and cooperates with the movable base. A fixed frame is installed on one side of the movable base, and an electric push rod is installed at the top of the fixed frame. A lifting slider connected to the telescopic end of the electric push rod is installed on one side of the fixed frame. A vacuum generator is installed on the lifting slider, and a vacuum nozzle is installed at the bottom of the vacuum generator.

[0014] Preferably, the cutting mechanism includes a second cylinder and a cutter. The second cylinder is vertically mounted on the machine housing, and the cutter is vertically mounted on the telescopic end of the second cylinder. The end of the cutter is located at the center directly above the tape.

[0015] Preferably, the reverse folding mechanism includes a second motor, a reverse folding arm, and a reverse folding block. The output of the second motor is connected to the reverse folding arm, and a reverse folding block is installed at the end of the reverse folding arm. A support block flush with the reverse folding block is provided on one side of the reverse folding block.

[0016] Preferably, the first conveying mechanism includes a third motor, a main drive roller, and a driven roller. The output end of the third motor is connected to the main drive roller, and the driven roller is arranged parallel to the top of the main drive roller.

[0017] Preferably, the second conveying mechanism includes a fourth motor, a lead screw, a conveying slider, a conveying frame, a fixed rod, and a pusher. The output end of the fourth motor is connected to the lead screw, the conveying slider is sleeved on the lead screw, the top of the conveying slider is mounted on the conveying frame, the fixed rod is mounted on the conveying frame, the end of the fixed rod is mounted on the connecting block, the pusher is rotatably mounted on the connecting block, and a first torsion spring is connected between the pusher and the connecting block.

[0018] Preferably, the pressing assembly includes a pressing frame, a bottom guide roller, a shaft frame, and a pressure roller. The pressing frame is installed at one end of the punching table, and a bottom guide roller is installed at the bottom end of one side of the pressing frame. A shaft frame is rotatably installed on the pressing frame, and a second torsion spring is connected between the shaft frame and the pressing frame. A pressure roller is installed at the bottom end of the shaft frame.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. By placing copper sheets into each feeding cylinder, after the copper sheets in one feeding cylinder are used up, the first cylinder operates, dragging the drag bar to move, thereby moving the feeding rack along the slide rail. When the sensor limits the movement of the feeding rack, the position of the feeding cylinder can be adjusted, realizing automatic material changing. This facilitates continuous material supply and makes it easy to refill the feeding cylinder with copper sheets after use. This avoids wasting time when placing copper sheets, thereby improving the automation process and increasing processing efficiency.

[0021] 2. By loosening the locking knob, the lifting slide can move up and down along the vertical rail, allowing the tension adjusting roller to move up and down within the adjusting groove. By adjusting the height of the tension adjusting roller, the pressure of the tension adjusting roller on the conveyor belt can be changed, thereby adjusting the tension of the conveyor belt. This prevents the conveyor belt from being too loose or too tight, which would affect the flatness of the conveyor belt during the conveying process. This ensures that the copper sheet can be completely adhered to the conveyor belt, avoids the formation of air bubbles, improves the sealing performance of the adhesive coating, and ensures that the coated copper sheet has good insulation when assembling the transformer.

[0022] 3. The servo module enables the moving seat to move back and forth, and its movement is controlled by the servo module, improving the accuracy of the moving distance. By moving the vacuum nozzle directly above the loading rack, the electric actuator moves the lifting slider, causing it to rise and fall. During descent, in conjunction with the vacuum generator, the vacuum nozzle adsorbs the copper sheet inside the loading rack. After adsorption, the copper sheet moves above the support plate and is pressed down onto the tape laid on the support plate, with the copper sheet occupying half the width of the tape. This allows the other half to be cut by the cutting mechanism, and the folding mechanism folds the other end back onto the copper sheet, completely wrapping it. This achieves automatic and precise feeding, enabling continuous automated feeding and improving feeding efficiency and accuracy.

[0023] 4. The second cylinder operates, enabling the cutter to rise and fall rapidly. When the cutter descends rapidly, it cuts the tape, ensuring the cut is in the middle of the tape. This allows the cut tape to be folded back and wrapped around the copper sheet, improving the accuracy and convenience of the adhesive application.

[0024] 5. The tape cut by the cutting mechanism is located on the top surface of the folding block. The second motor runs, causing the folding arm to rotate, which in turn causes the folding block to flip over, folding the cut tape back onto the support block. This covers the top surface of the copper sheet on the support block with tape, thus completing the coating of both sides of the copper sheet. This achieves automatic coating without the need for manual operation, improving coating accuracy, reducing labor costs, and increasing coating efficiency.

[0025] 6. The coated copper sheets are clamped by the main drive roller and the driven roller. When the third motor is running, the main drive roller rotates to transport the coated copper sheets, thereby preventing the coated copper sheets from piling up. At the same time, it can also work with the first motor to straighten the tape, so that the copper sheets can be automatically transported while the tape is being transported.

[0026] 7. The operation of the fourth motor causes the lead screw to rotate, which in turn causes the conveyor slider to move back and forth. This allows the pusher to move back and forth on the punching table. Under the connection of the first torsion spring, the pusher always generates a force against the punching table in the direction it moves towards the punching table. This ensures that the pusher can automatically push the copper sheet when it moves towards the punching table, thereby realizing automatic feeding. This also makes it easier for the cutter to remove excess tape from the copper sheet, improving the automation performance of the entire machine.

[0027] 8. The bottom guide roller guides the coated copper sheet, ensuring a smooth fit between the copper sheet's conveying path and the edge of the punching table. This prevents friction between the copper sheet and the punching table edge during transport, thus avoiding tape damage and ensuring insulation performance. The pressure roller, under the action of the second torsion spring, remains pressed against the punching table, ensuring the copper sheet adheres to the table during transport. This facilitates transport by the second conveying mechanism and prevents the copper sheet from arching, which could result in irregular cuts when the cutter removes excess tape. This improves cutting accuracy and ultimately enhances product quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a rear-view three-dimensional structural diagram of the top of the chassis of this utility model.

[0030] Figure 3This is a rear-view three-dimensional structural diagram of the film storage rack of this utility model.

[0031] Figure 4 This is a frontal perspective three-dimensional structural diagram of the film storage rack of this utility model.

[0032] Figure 5 This is a schematic diagram of the connection structure between the feeding rack and the base frame of this utility model.

[0033] Figure 6 This is a schematic diagram of the feeding rack of this utility model.

[0034] Figure 7 This is a schematic diagram of the material suction and conveying mechanism of this utility model.

[0035] Figure 8 This is a schematic diagram of the combined structure of the cutting mechanism, the folding mechanism and the first conveying mechanism of this utility model.

[0036] Figure 9 This is a schematic diagram of the combined structure of the second conveying mechanism and the pressing assembly of this utility model.

[0037] The attached diagram is labeled as follows: 1. Chassis; 2. Film roll holder; 21. First motor; 22. Belt roller; 23. Adjustment groove; 24. Guide roller; 3. Belt tension buffer mechanism; 301. Vertical rail; 302. Lifting slide; 303. Locking button; 304. Tension adjusting roller; 4. Arch frame; 5. Material suction and transmission mechanism; 501. Moving module frame; 502. Moving seat; 503. Fixed frame; 504. Electric actuator; 505. Lifting slider; 506. Vacuum generator; 507. Vacuum nozzle; 6. Loading rack; 7. Support plate; 8. Cutting mechanism; 801. Second cylinder; 802. Cutting blade; 9. Reverse folding mechanism; 901. Second electric... 902. Reverse folding arm; 903. Reverse folding block; 10. First conveying mechanism; 1001. Third motor; 1002. Main drive roller; 1003. Driven roller; 11. Pressing assembly; 1101. Pressing frame; 1102. Bottom guide roller; 1103. Shaft frame; 1104. Pressure roller; 12. Second conveying mechanism; 1201. Fourth motor; 1202. Lead screw; 1203. Conveying slider; 1204. Conveying frame; 1205. Fixed rod; 1206. Push frame; 13. Punching frame; 14. Base frame; 15. Proximity sensor; 16. First cylinder; 17. Trailing rod; 18. Lateral slider; 19. Slide rail; 20. Placement port. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] As attached Figures 1-9 The copper sheet coating reverse folding punching machine shown includes a machine housing 1. A film roll placement rack 2 is installed on one side of the top of the machine housing 1. A tape tension buffer mechanism 3 is installed on the film roll placement rack 2. An arch frame 4 is installed on the top of the machine housing 1 on one side of the film roll placement rack 2. A support plate 7 is installed at the bottom of the arch frame 4. A material suction and conveying mechanism 5 is installed on the arch frame 4. A feeding rack 6 is installed inside the machine housing 1 on one side of the arch frame 4. A cutting mechanism 8 is provided at one end of the support plate 7. A reverse folding mechanism 9 is provided on one side of the cutting mechanism 8. A first conveying mechanism 10 is provided on one side of the reverse folding mechanism 9.

[0040] A punching table is provided on the top of one end of the chassis 1. A pressing assembly 11 that cooperates with the first conveying mechanism 10 is installed on one end of the punching table. A second conveying mechanism 12 is provided on one side of the punching table. A punching frame 13 is installed on the other side of the punching table. A punching cylinder is installed on the punching frame 13. A knife for cutting excess tape on the copper sheet is installed at the bottom of the punching cylinder.

[0041] A first motor 21 is installed on the film roll placement rack 2. The output end of the first motor 21 is connected to a tape roller 22. An adjustment groove 23 is provided at the bottom of one side of the tape roller 22. The adjustment groove 23 is slidably engaged with the tape tension buffer mechanism 3. Multiple guide rollers 24 are installed on the film roll placement rack 2.

[0042] In practice, the tape is pulled from the tape roller 22, and the side without adhesive is bypassed by the guide roller 24 and connected to the tape tension buffer mechanism 3 to adjust the tape tension. Then, it is laid on the support plate 7. During operation, the suction and conveying mechanism 5 absorbs copper sheets from the loading rack 6 and positions them on the tape laid on the support plate 7, ensuring the bottom surface of the copper sheets adheres to the tape. As the first conveying mechanism 10 pulls, the tape with the adhered copper sheets moves to the folding mechanism 9, and the cutting mechanism 8 operates, cutting the tape at half its length. The reverse folding mechanism 9 folds the cut tape back onto the copper sheet, applying adhesive to the top surface of the copper sheet so that the copper sheet is completely wrapped by the tape, completing the adhesive application. The second conveying mechanism 12 then operates to convey the coated copper sheet. During the conveying process, the pressing component 11 presses down on the copper sheet to prevent it from warping. After the copper sheet moves to the bottom of the punching frame 13, the punching cylinder operates, causing the cutter to automatically cut off the excess tape on the copper sheet, thus completing the adhesive application of the copper sheet and the removal of excess tape after adhesive application, completing the entire adhesive application process for the copper sheet.

[0043] The top of the chassis 1 has a through groove, and a base frame 14 is installed at the bottom of the through groove. A slide rail 19 is installed on one side of the base frame 14. A transverse slider 18 connected to the loading rack 6 is slidably installed on each slide rail 19. A drag rod 17 is welded to one side of the loading rack 6. A slide groove is opened on the base frame 14. A first cylinder 16 is installed on one side of the slide groove. The drag rod 17 is connected to the telescopic end of the first cylinder 16 through the slide groove. Proximity sensors 15 that cooperate with the drag rod 17 are set on both sides of the slide groove. Two placement openings 20 are opened on the loading rack 6. A feeding cylinder is installed in each placement opening 20.

[0044] In practice, copper sheets are placed in each feeding cylinder. After the copper sheets in one feeding cylinder are used up, the first cylinder 16 is activated, dragging the drag bar 17 to move, thereby causing the feeding rack 6 to move along the slide rail 19. The proximity sensor 15 limits the movement of the feeding rack 6, thereby adjusting the position of the feeding cylinder and realizing automatic material changing. This facilitates continuous material supply and makes it easy to refill the feeding cylinder with copper sheets after use. This avoids wasting time when placing copper sheets, thereby improving the automation process and increasing processing efficiency.

[0045] The tape tension buffer mechanism 3 includes a vertical rail 301, a lifting slide 302, a locking button 303, and a tension adjusting roller 304. The vertical rail 301 is installed on one side of the adjusting groove 23. The lifting slide 302 is slidably installed on the vertical rail 301. A screw hole is opened in the middle of the lifting slide 302. The locking button 303, which abuts against the vertical rail 301, is installed in the screw hole. The tension adjusting roller 304, which slides in cooperation with the adjusting groove 23, is installed on one side of the lifting slide 302.

[0046] In practice, by loosening the locking knob 303, the lifting slide 302 can move up and down along the vertical rail 301, allowing the tension adjusting roller 304 to be adjusted in the adjusting groove 23. By adjusting the height of the tension adjusting roller 304, the pressure of the tension adjusting roller 304 on the conveyor belt can be changed, thereby adjusting the tension of the conveyor belt. This prevents the conveyor belt from being too loose or too tight, which would affect the flatness of the conveyor belt during the conveying process. This ensures that the copper sheet can be completely bonded to the conveyor belt, avoids the formation of air bubbles, improves the sealing performance of the adhesive coating, and ensures that the coated copper sheet has good insulation when assembling the transformer.

[0047] The material conveying mechanism 5 includes a movable module frame 501, a movable base 502, a fixed frame 503, an electric push rod 504, a lifting slider 505, a vacuum generator 506, and a vacuum nozzle 507. The movable module frame 501 is mounted on the arch frame 4. A servo module is installed inside the movable module frame 501. The servo module is connected and cooperates with the movable base 502. A fixed frame 503 is installed on one side of the movable base 502. An electric push rod 504 is installed at the top of the fixed frame 503. A lifting slider 505 connected to the telescopic end of the electric push rod 504 is installed on one side of the fixed frame 503. A vacuum generator 506 is installed on the lifting slider 505. A vacuum nozzle 507 is installed at the bottom of the vacuum generator 506.

[0048] In practical implementation, the servo module enables the moving seat 502 to move back and forth. By controlling the movement of the moving seat 502 through the servo module, the accuracy of the moving distance of the moving seat 502 can be improved. By moving the vacuum nozzle 507 directly above the loading rack 6, the electric push rod 504 is activated, which allows the lifting slider 505 to rise and fall. During descent, in conjunction with the operation of the vacuum generator 506, the vacuum nozzle 507 adsorbs the copper sheet in the loading rack 6. After adsorbing the copper sheet, it moves above the support plate 7 and presses the copper sheet down onto the tape laid on the support plate 7. The copper sheet occupies half the width of the tape so that the other half can be cut by the cutting mechanism 8. The folding mechanism 9 then folds the other end back onto the copper sheet, completely wrapping the copper sheet. This achieves automatic and precise feeding, enabling continuous automated feeding and improving feeding efficiency and accuracy.

[0049] The cutting mechanism 8 includes a second cylinder 801 and a cutter 802. The second cylinder 801 is vertically mounted on the housing 1. The cutter 802 is vertically mounted on the telescopic end of the second cylinder 801. The end of the cutter 802 is located at the center directly above the tape.

[0050] In practice, the second cylinder 801 is operated to enable the cutter 802 to move up and down rapidly. When the cutter 802 descends rapidly, it can cut the tape, and the cut point is in the middle of the tape. This makes it easier for the cut tape to be folded back and wrapped around the copper sheet, improving the accuracy and convenience of the adhesive application.

[0051] The anti-folding mechanism 9 includes a second motor 901, an anti-folding arm 902, and an anti-folding block 903. The output of the second motor 901 is connected to the anti-folding arm 902. The anti-folding block 903 is installed at the end of the anti-folding arm 902. A support block flush with the anti-folding block 903 is provided on one side of the anti-folding block 903.

[0052] In practice, the tape cut by the cutting mechanism 8 is located on the top surface of the folding block 903. The second motor 901 operates, causing the folding arm 902 to rotate, which in turn causes the folding block 903 to flip over, folding the cut tape back onto the support block. This allows the top surface of the copper sheet on the support block to be covered by the tape, thus completing the coating of both sides of the copper sheet. This achieves automatic coating without the need for manual operation, improving coating accuracy, reducing labor costs, and increasing coating efficiency.

[0053] The first conveying mechanism 10 includes a third motor 1001, a main drive roller 1002 and a driven roller 1003. The output end of the third motor 1001 is connected to the main drive roller 1002, and the driven roller 1003 is arranged parallel to the top end of the main drive roller 1002.

[0054] In practice, the copper sheets coated with adhesive are clamped by the main drive roller 1002 and the driven roller 1003. When the third motor 1001 is running, the main drive roller 1002 rotates to transport the coated copper sheets, thereby preventing the copper sheets from accumulating. At the same time, it can also work with the first motor 21 to straighten the tape, so that the copper sheets can be automatically transported while the tape is being transported.

[0055] The second conveying mechanism 12 includes a fourth motor 1201, a lead screw 1202, a conveying slider 1203, a conveying frame 1204, a fixed rod 1205, and a pusher 1206. The output end of the fourth motor 1201 is connected to the lead screw 1202. The conveying slider 1203 is sleeved on the lead screw 1202. The conveying frame 1204 is installed at the top of the conveying slider 1203. The fixed rod 1205 is installed on the conveying frame 1204. A connecting block is installed at the end of the fixed rod 1205. The pusher 1206 is rotatably installed on the connecting block. A first torsion spring connects the pusher 1206 and the connecting block.

[0056] In practice, the operation of the fourth motor 1201 causes the lead screw 1202 to rotate, which in turn causes the conveying slider 1203 to move back and forth. This allows the pusher 1206 to move back and forth on the punching table. Under the connection of the first torsion spring, the pusher 1206 always generates a force against the punching table in the direction it moves toward the punching frame 13. This ensures that when the pusher 1206 moves toward the punching frame 13, it can automatically push the copper sheet, thereby realizing automatic feeding. This facilitates the cutting tool to remove excess tape from the copper sheet and improves the automation performance of the entire machine.

[0057] The pressing assembly 11 includes a pressing frame 1101, a bottom guide roller 1102, a shaft frame 1103, and a pressure roller 1104. The pressing frame 1101 is installed at one end of the punching table. The bottom guide roller 1102 is installed at the bottom end of one side of the pressing frame 1101. The shaft frame 1103 is rotatably installed on the pressing frame 1101. A second torsion spring is connected between the shaft frame 1103 and the pressing frame 1101. The pressure roller 1104 is installed at the bottom end of the shaft frame 1103.

[0058] In practice, the bottom guide roller 1102 guides the coated copper sheet, ensuring smooth alignment between the copper sheet's conveying path and the edge of the punching table. This prevents friction between the copper sheet and the punching table edge during transport, thus avoiding tape damage and ensuring insulation performance. Meanwhile, the pressure roller 1104, under the action of the second torsion spring, remains pressed against the punching table, ensuring the copper sheet adheres to the punching table during transport. This facilitates transport by the second conveying mechanism 12 and prevents the copper sheet from arching, which could result in irregular cutting when the cutter removes excess tape. This improves cutting accuracy and ultimately enhances product quality.

[0059] Finally, the following points should be noted: First, in the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly, and can be mechanical connection or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0060] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0061] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A copper sheet coating reverse folding punching machine, comprising a machine housing (1), characterized in that: A film rack (2) is installed on one side of the top of the machine housing (1). A tape tension buffer mechanism (3) is installed on the film rack (2). An arch frame (4) is installed on the top of the machine housing (1) on one side of the film rack (2). A support plate (7) is installed at the bottom of the arch frame (4). A material suction and conveying mechanism (5) is installed on the arch frame (4). A feeding rack (6) is installed inside the machine housing (1) on one side of the arch frame (4). A cutting mechanism (8) is provided at one end of the support plate (7). A folding mechanism (9) is provided on one side of the cutting mechanism (8). A first conveying mechanism (10) is provided on one side of the folding mechanism (9). The top of one end of the chassis (1) is provided with a punching table, and a pressing assembly (11) that cooperates with the first conveying mechanism (10) is installed at one end of the punching table. A second conveying mechanism (12) is provided on one side of the punching table. A punching frame (13) is installed on the other side of the punching table. A punching cylinder is installed on the punching frame (13). A knife for cutting excess tape on the copper sheet is installed at the bottom of the punching cylinder. The film placement rack (2) is equipped with a first motor (21), the output end of the first motor (21) is connected to a tape roller (22), an adjustment groove (23) is provided at the bottom of one side of the tape roller (22), the adjustment groove (23) is slidably engaged with the tape tension buffer mechanism (3), and multiple guide rollers (24) are installed on the film placement rack (2).

2. The copper sheet coating and reverse folding punching machine according to claim 1, characterized in that: The top of the chassis (1) is provided with a through groove, and a base frame (14) is installed at the bottom of the through groove. A slide rail (19) is installed on one side of the base frame (14). A transverse slider (18) connected to the loading rack (6) is slidably installed on each slide rail (19). A drag rod (17) is welded on one side of the loading rack (6). A slide groove is provided on the base frame (14). A first cylinder (16) is installed on one side of the slide groove. The drag rod (17) is connected to the telescopic end of the first cylinder (16) through the slide groove. A proximity sensor (15) that cooperates with the drag rod (17) is provided on both sides of the slide groove. Two placement ports (20) are provided on the loading rack (6). A feeding cylinder is installed in each placement port (20).

3. A copper sheet adhesive-coated reverse folding punching machine according to claim 2, characterized in that: The tape tension buffer mechanism (3) includes a vertical rail (301), a lifting slide (302), a locking button (303), and a tension adjusting roller (304). The vertical rail (301) is installed on one side of the adjusting groove (23). The lifting slide (302) is slidably installed on the vertical rail (301). A screw hole is opened in the middle of the lifting slide (302). A locking button (303) is installed in the screw hole and abuts against the vertical rail (301). A tension adjusting roller (304) that slides with the adjusting groove (23) is installed on one side of the lifting slide (302).

4. A copper sheet adhesive-coated reverse folding punching machine according to claim 3, characterized in that: The material conveying mechanism (5) includes a movable module frame (501), a movable seat (502), a fixed frame (503), an electric push rod (504), a lifting slider (505), a vacuum generator (506), and a vacuum nozzle (507). The movable module frame (501) is mounted on the arch frame (4). A servo module is installed inside the movable module frame (501). The servo module is connected and cooperates with the movable seat (502). A fixed frame (503) is installed on one side of the movable seat (502). An electric push rod (504) is installed at the top of the fixed frame (503). A lifting slider (505) connected to the telescopic end of the electric push rod (504) is installed on one side of the fixed frame (503). A vacuum generator (506) is installed on the lifting slider (505). A vacuum nozzle (507) is installed at the bottom of the vacuum generator (506).

5. A copper sheet adhesive-coated reverse folding and punching machine according to claim 4, characterized in that: The cutting mechanism (8) includes a second cylinder (801) and a cutter (802). The second cylinder (801) is vertically mounted on the housing (1). The cutter (802) is vertically mounted on the telescopic end of the second cylinder (801). The end of the cutter (802) is located at the center directly above the tape.

6. A copper sheet adhesive-coated reverse folding punching machine according to claim 5, characterized in that: The reverse bending mechanism (9) includes a second motor (901), a reverse bending arm (902), and a reverse bending block (903). The output end of the second motor (901) is connected to the reverse bending arm (902), and the reverse bending block (903) is installed at the end of the reverse bending arm (902). A support block flush with the reverse bending block (903) is provided on one side of the reverse bending block (903).

7. A copper sheet coating and reverse folding punching machine according to claim 6, characterized in that: The first conveying mechanism (10) includes a third motor (1001), a main drive roller (1002) and a driven roller (1003). The output end of the third motor (1001) is connected to the main drive roller (1002), and the driven roller (1003) is arranged parallel to the top of the main drive roller (1002).

8. A copper sheet adhesive-coated reverse folding and punching machine according to claim 7, characterized in that: The second conveying mechanism (12) includes a fourth motor (1201), a lead screw (1202), a conveying slider (1203), a conveying frame (1204), a fixed rod (1205), and a pusher (1206). The output end of the fourth motor (1201) is connected to the lead screw (1202). The conveying slider (1203) is sleeved on the lead screw (1202). The top of the conveying slider (1203) is equipped with the conveying frame (1204). The fixed rod (1205) is installed on the conveying frame (1204). The end of the fixed rod (1205) is equipped with a connecting block. The pusher (1206) is rotatably installed on the connecting block. A first torsion spring is connected between the pusher (1206) and the connecting block.

9. A copper sheet coating and reverse folding punching machine according to claim 8, characterized in that: The pressing assembly (11) includes a pressing frame (1101), a bottom guide roller (1102), a shaft frame (1103), and a pressure roller (1104). The pressing frame (1101) is installed at one end of the punching table. The bottom guide roller (1102) is installed at the bottom end of one side of the pressing frame (1101). The shaft frame (1103) is rotatably installed on the pressing frame (1101). A second torsion spring is connected between the shaft frame (1103) and the pressing frame (1101). The pressure roller (1104) is installed at the bottom end of the shaft frame (1103).