Automatic cutting machine for circuit board production

By introducing a grinding mechanism into an automatic cutting machine, the circuit board is ground using a motor-driven threaded rod and gear system, which solves the problem of burr removal, improves surface finish and dimensional accuracy, and enhances product reliability.

CN224239066UActive Publication Date: 2026-05-15JIANGXI FUZHI CIRCUIT BOARD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI FUZHI CIRCUIT BOARD CO LTD
Filing Date
2025-06-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing automatic cutting machines used in circuit board production cannot effectively remove burrs after cutting, resulting in reduced surface finish and dimensional accuracy, which affects product reliability.

Method used

An automatic cutting machine with a grinding mechanism was designed. The machine uses a motor to drive a threaded rod, which in turn moves a threaded block and a moving frame, thereby moving a grinding roller. In conjunction with gears and toothed plates, the machine grinds the circuit board and removes burrs.

Benefits of technology

It improves the surface finish of the circuit board, ensures dimensional accuracy, and enhances product reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224239066U_ABST
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Abstract

The utility model discloses an automatic cutting machine for circuit board production, which comprises a base, vertical plates are fixedly mounted on two sides of the top of the base, a fixing frame is fixedly mounted on the front sides of the vertical plates, a motor is fixedly mounted on the right side of the vertical plate on the left side, and a threaded rod is fixedly mounted at the output end of the motor. The outer portion of the threaded rod is in threaded connection with a threaded block, a movable frame is fixedly installed on the front side of the threaded block, a grinding roller is rotationally connected into the movable frame through a bearing, a rotating shaft is fixedly installed on the front side of the grinding roller, and the front end of the rotating shaft penetrates into the fixed frame to be fixedly connected with a gear. And the bottom of the gear is movably engaged with a toothed plate. Through the matching of the structures, the circuit board after cutting is polished, so that burrs on the circuit board can be removed, the surface smoothness of the circuit board can be improved, the size precision can be ensured, and the product reliability can be enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing technology, specifically to an automatic cutting machine for circuit board manufacturing. Background Technology

[0002] Circuit boards are the core components of electronic devices. They consist of an insulating substrate and a conductive copper layer. Specific circuit patterns are formed through etching to connect and support electronic components. Their functions include: providing electrical interconnection channels; mechanically fixing components; heat dissipation; and signal transmission. According to their structure, circuit boards can be divided into single-sided, double-sided, and multilayer boards, and are widely used in communications, computers, consumer electronics, and other fields. They are the key foundation for the miniaturization and integration of modern electronic products. During the production process, circuit boards require cutting to cut large-sized copper-clad laminates into smaller substrates that conform to design dimensions for slotting and drilling. The existing publication CN217789999U discloses a high-efficiency automatic cutting machine for circuit board production. When fixing the circuit board, it is simply placed in a placement slot, and four horizontal and four vertical guide bars gradually converge towards the center point of the slot, fixing the circuit board at the center. Compared to traditional methods, this is not only simpler and more convenient, reducing the labor intensity of workers, but also improves the accuracy of alignment and to some extent improves the quality of slotting and drilling. However, this cutting machine cannot grind the cut circuit board, thus failing to effectively remove burrs, which greatly reduces the surface finish, dimensional accuracy, and product reliability of the circuit board, bringing certain adverse effects to practical use. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic cutting machine for circuit board production, which has a grinding mechanism to grind the circuit board after cutting, thereby removing burrs from the circuit board, improving the surface smoothness of the circuit board, ensuring dimensional accuracy, enhancing product reliability, bringing certain benefits to actual use, and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic cutting machine for circuit board production, comprising a base, a placement plate at the top center of the base, upright plates fixedly installed on both sides of the top of the base, a cutting equipment body fixedly installed on the top of the upright plates, a fixed frame fixedly installed on the front side of the upright plates, a motor fixedly installed on the right side of the left upright plate, a threaded rod fixedly installed at the output end of the motor, the other end of the threaded rod being rotatably connected to the upright plate via a bearing, a threaded block being threadedly connected to the external thread of the threaded rod, a movable frame fixedly installed on the front side of the threaded block, a grinding roller being rotatably connected to the inside of the movable frame via a bearing, a rotating shaft fixedly installed on the front side of the grinding roller, a gear fixedly connected to the front end of the rotating shaft passing through the inside of the fixed frame, a toothed plate being movably meshed at the bottom of the gear, and the toothed plate being fixedly connected to the bottom of the inner wall of the fixed frame.

[0005] Preferably, the base has through slots on both sides of the top, and electric telescopic rods are fixedly installed on both sides of the inner wall of the base. A clamp is fixedly installed at the other end of the electric telescopic rod.

[0006] Preferably, an anti-slip pad is fixedly installed on the inner side of the clamping plate, and the anti-slip pad is made of rubber.

[0007] Preferably, an electric slide rail is fixedly installed on the top of the base, and a slider is slidably connected inside the electric slide rail, the slider being fixedly connected to the bottom of the placement plate.

[0008] Preferably, a support plate is fixedly installed on the rear side of the base, a blower pipe is fixedly installed on the top of the support plate, a mesh is fixedly installed on the front side of the blower pipe, and a fan is fixedly installed inside the blower pipe.

[0009] Preferably, a collection frame is fixedly installed on the front side of the base, and a discharge trough is provided on the front side of the collection frame.

[0010] Preferably, a sliding sleeve is fixedly installed on the top of the threaded block, and a sliding rod is slidably connected inside the sliding sleeve, with both ends of the sliding rod being fixedly connected to the upright plate.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: The motor startup drives the threaded rod to rotate, which in turn drives the threaded block to move. The threaded block then drives the moving frame to move, which in turn drives the grinding roller to move. Simultaneously, the moving frame drives the gear to rotate, which in turn rotates under the meshing action of the gear plate. Therefore, the gear drives the grinding roller to rotate via the rotating shaft, thereby achieving the grinding of the circuit board after cutting, thus removing burrs from the circuit board, improving the surface finish of the circuit board, ensuring dimensional accuracy, and enhancing product reliability. The electric telescopic rod can drive the clamping plate to move, and the clamping plate can clamp and fix the circuit board on the placement plate, thereby improving the stability of the circuit board during the cutting and grinding process. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the base of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the fixed frame of this utility model;

[0015] Figure 4 This is a schematic diagram of the electric slide rail and slider structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the internal structure of the blower tube of this utility model.

[0017] In the diagram: 1. Base; 2. Placement plate; 3. Vertical plate; 4. Cutting equipment body; 5. Fixing frame; 6. Motor; 7. Threaded rod; 8. Threaded block; 9. Moving frame; 10. Grinding roller; 11. Rotating shaft; 12. Gear; 13. Tooth plate; 14. Electric telescopic rod; 15. Clamping plate; 16. Anti-slip mat; 17. Electric slide rail; 18. Slider; 19. Air duct; 20. Partition net; 21. Fan; 22. Collection frame; 23. Sliding sleeve; 24. Sliding rod. Detailed Implementation

[0018] 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.

[0019] Example 1, please refer to Figures 1 to 5This utility model provides a technical solution: an automatic cutting machine for circuit board production, including a base 1, a placement plate 2 at the top center of the base 1, upright plates 3 fixedly installed on both sides of the top of the base 1, a cutting equipment body 4 fixedly installed on the top of the upright plates 3, a fixed frame 5 fixedly installed on the front side of the upright plates 3, a motor 6 fixedly installed on the right side of the left upright plate 3, a threaded rod 7 fixedly installed at the output end of the motor 6, the other end of the threaded rod 7 being rotatably connected to the upright plate 3 through a bearing, a threaded block 8 being threadedly connected to the outside of the threaded rod 7, a movable frame 9 fixedly installed on the front side of the threaded block 8, a grinding roller 10 being rotatably connected inside the movable frame 9 through a bearing, a rotating shaft 11 fixedly installed on the front side of the grinding roller 10, a gear 12 being fixedly connected to the front end of the rotating shaft 11 through the interior of the fixed frame 5, a toothed plate 13 being movably meshed at the bottom of the gear 12, and the toothed plate 13 being fixedly connected to the bottom of the inner wall of the fixed frame 5.

[0020] Furthermore, through slots are provided on both sides of the top of the base 1, and electric telescopic rods 14 are fixedly installed on both sides of the inner wall of the base 1. A clamping plate 15 is fixedly installed on the other end of the electric telescopic rod 14. The clamping plate 15 can clamp and fix the circuit board on the placement plate 2, thereby improving the stability of the circuit board during the cutting and grinding process.

[0021] Furthermore, an anti-slip pad 16 is fixedly installed on the inner side of the clamping plate 15. The anti-slip pad 16 is made of rubber and can increase the friction between the clamping plate 15 and the circuit board.

[0022] Furthermore, an electric slide rail 17 is fixedly installed on the top of the base 1, and a slider 18 is slidably connected inside the electric slide rail 17. The slider 18 is fixedly connected to the bottom of the placement plate 2. With the electric slide rail 17 and the slider 18, the placement plate 2 can move back and forth automatically, which makes it convenient for workers to load and unload circuit boards.

[0023] Example 2, please refer to Figures 1 to 5 The difference between this embodiment and embodiment 1 is that: a support plate is fixedly installed on the rear side of the base 1, a blower pipe 19 is fixedly installed on the top of the support plate, a mesh 20 is fixedly installed on the front side of the blower pipe 19, and a fan 21 is fixedly installed inside the blower pipe 19. When the fan 21 is started, it can blow off the debris generated during the cutting of the circuit board, thereby preventing the debris from accumulating on the top of the base 1. A collection frame 22 is fixedly installed on the front side of the base 1. A discharge trough is opened on the front side of the collection frame 22. The collection frame 22 can collect the blown debris, thereby facilitating the centralized processing of the debris by the staff. A sliding sleeve 23 is fixedly installed on the top of the threaded block 8. A sliding rod 24 is slidably connected inside the sliding sleeve 23. The two ends of the sliding rod 24 are fixedly connected to the upright plate 3. The threaded block 8 can move stably under the sliding action of the sliding sleeve 23 and the sliding rod 24.

[0024] Working Principle: When using this automatic circuit board cutting machine, the operator places the circuit board to be cut on top of the placement plate 2. Simultaneously, the operator activates the electric slide rail 17, which moves the slider 18. The slider 18 moves the circuit board on the placement plate 2 directly below the cutting machine. Then, the operator activates the electric telescopic rod 14, which moves the clamping plate 15 to clamp and fix the circuit board. After the circuit board cutting is completed, the operator activates the motor 6, which drives... The threaded rod 7 rotates, which drives the threaded block 8 to move. The threaded block 8 drives the moving frame 9 to move, which in turn drives the grinding roller 10 to move. Simultaneously, the moving frame 9 drives the gear 12 to rotate. The gear 12 rotates under the meshing action of the gear plate 13. Therefore, the gear 12 drives the grinding roller 10 to rotate through the rotating shaft 11, thereby achieving the grinding of the circuit board after cutting, which can remove burrs from the circuit board, thereby improving the surface finish of the circuit board, ensuring dimensional accuracy, and enhancing product reliability.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic cutting machine for circuit board production, comprising a base (1), characterized in that: The base (1) has a placement plate (2) in the middle of its top. The base (1) has upright plates (3) fixedly installed on both sides of its top. The cutting equipment body (4) is fixedly installed on the top of the upright plates (3). The front side of the upright plates (3) has a fixed frame (5). The right side of the left upright plate (3) has a motor (6) fixedly installed. The output end of the motor (6) has a threaded rod (7) fixedly installed. The other end of the threaded rod (7) is rotatably connected to the upright plate (3) through a bearing. The external threaded connection is a threaded block (8), and a movable frame (9) is fixedly installed on the front side of the threaded block (8). A grinding roller (10) is rotatably connected inside the movable frame (9) through a bearing. A rotating shaft (11) is fixedly installed on the front side of the grinding roller (10). A gear (12) is fixedly connected to the front end of the rotating shaft (11) inside the fixed frame (5). A toothed plate (13) is movably meshed at the bottom of the gear (12). The toothed plate (13) is fixedly connected to the bottom of the inner wall of the fixed frame (5).

2. The automatic cutting machine for circuit board production according to claim 1, characterized in that: The base (1) has through slots on both sides of its top, and electric telescopic rods (14) are fixedly installed on both sides of the inner wall of the base (1). A clamp (15) is fixedly installed on the other end of the electric telescopic rods (14).

3. The automatic cutting machine for circuit board production according to claim 2, characterized in that: An anti-slip pad (16) is fixedly installed on the inner side of the clamp (15), and the anti-slip pad (16) is made of rubber.

4. The automatic cutting machine for circuit board production according to claim 1, characterized in that: An electric slide rail (17) is fixedly installed on the top of the base (1), and a slider (18) is slidably connected inside the electric slide rail (17). The slider (18) is fixedly connected to the bottom of the placement plate (2).

5. The automatic cutting machine for circuit board production according to claim 1, characterized in that: A support plate is fixedly installed on the rear side of the base (1), a blower pipe (19) is fixedly installed on the top of the support plate, a mesh (20) is fixedly installed on the front side of the blower pipe (19), and a fan (21) is fixedly installed inside the blower pipe (19).

6. The automatic cutting machine for circuit board production according to claim 1, characterized in that: A collection frame (22) is fixedly installed on the front side of the base (1), and a discharge trough is provided on the front side of the collection frame (22).

7. The automatic cutting machine for circuit board production according to claim 1, characterized in that: A sliding sleeve (23) is fixedly installed on the top of the threaded block (8), and a sliding rod (24) is slidably connected inside the sliding sleeve (23). The two ends of the sliding rod (24) are fixedly connected to the upright plate (3).