Flexible circuit board die cutting device

Abstract

The utility model relates to the technical field of circuit board die cutting, and discloses a flexible circuit board die cutting device which comprises a base, rotating rollers are fixedly connected to the top of the base, a second support is fixedly connected to the top of the base, a plurality of rotating rollers are fixedly connected to the top of the second support, and a first support is fixedly connected to the top of the base. A supporting assembly is arranged on the top of the base, and an adjusting assembly is arranged in the first support. The adjusting assembly comprises a first spring, and one end of the first spring is fixedly connected to the interior of the first support. According to the utility model, by rotating the handle, the handle drives the first spring to contract, the first spring contracts to slide in the first bracket, and the first sliding block and the circular knife roll are driven to move, so that the problems that when the pressure is fixed or manual adjustment is needed, uneven cutting, burrs, layering or adhesive residues are easily caused by material thickness fluctuation or knife wear are solved; and the stability of the flexible circuit board die cutting device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a circuit board die cutting technical field especially relates to a flexible circuit board die cutting device. BACKGROUND

[0002] Flexible circuit board is widely used in electronic products because of its light, thin and bendable characteristics. In the FPC manufacturing process, die cutting is one of the key processes, which directly affects the precision and quality of the circuit board.

[0003] In the prior art, the flexible circuit board die cutting device mostly adopts a relatively traditional mechanical structure. Commonly, a fixed mechanical transmission system is used to drive the cutter for die cutting operation, and the technical principle is mainly based on simple force transmission. The power generated by the motor and other power sources is transmitted to the cutter through a series of gears, connecting rods and other mechanical components to realize the cutting of the flexible circuit board. In terms of pressure application, a fixed pressure mode is usually preset, and the pressure during the cutting process is maintained by the weight of the mold itself or a specific mechanical structure.

[0004] However, this traditional fixed pressure mode has significant problems. Since the material thickness of the flexible circuit board changes in a certain range due to production batches, process fluctuations and other factors during the production process, and the cutter will also naturally wear out after a long time of use. Under the condition of fixed pressure, it is impossible to automatically adjust the pressure in the face of material thickness fluctuations or cutter wear, which easily leads to uneven cutting. Specifically, obvious burrs are generated at the cutting position, the board material is layered, and even glue is left at the cutting edge, which seriously affects the product quality of the flexible circuit board and greatly reduces the yield. Therefore, a flexible circuit board die cutting device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a flexible circuit board die cutting device, which aims to improve the problem of uneven cutting, burr, layering or glue residue, and yield reduction caused by material thickness fluctuations or cutter wear when the pressure is fixed or manually adjusted in the prior art.

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

[0007] A flexible circuit board die cutting device, comprising a base, a rotating roller is fixedly connected to the top of the base, a second support is fixedly connected to the top of the base, a plurality of rotating rollers are fixedly connected to the top of the second support, a first support is fixedly connected to the top of the base, a supporting assembly is arranged on the top of the base, and an adjusting assembly is arranged in the first support.

[0008] The adjusting assembly comprises a first spring, one end of the first spring is fixedly connected in the first support, the other end of the first spring is fixedly connected with a first sliding block, the top of the first sliding block is fixedly connected with a handle, the side wall of the first sliding block is fixedly connected with a limiting block, the side wall of the limiting block is slidably connected in the first support, a rotating shaft is rotatably connected in the first sliding block, the one end of the rotating shaft is fixedly connected with a limiting plate, and the outer wall of the rotating shaft is fixedly connected with a circular knife roller.

[0009] As a further description of the above technical solution:

[0010] The supporting assembly comprises a third support, and the bottom of the third support is fixedly connected to the top of the base.

[0011] As a further description of the above technical solution:

[0012] The top of the third support is fixedly connected with a motor, and the output end of the motor is fixedly connected with a second threaded rod.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the second threaded rod is threadedly connected with a rotating disc, and the outer wall of the second threaded rod is slidably connected with a thimble.

[0015] As a further description of the above technical solution:

[0016] One end of the thimble is arranged at one end of the rotating disc, and the outer wall of the thimble is fixedly connected with a first connecting plate.

[0017] As a further description of the above technical solution:

[0018] The inner wall of the first connecting plate is rotatably connected with a rotating plate, and the side wall of the rotating plate is rotatably connected with a second connecting plate.

[0019] As a further description of the above technical solution:

[0020] The side wall of the second connecting plate is fixedly connected with a second sliding block, the side wall of the second sliding block is slidably connected with a hollow groove plate, the side wall of the hollow groove plate is fixedly connected to the side wall of the motor, and the side wall of the hollow groove plate is provided with a rebound assembly.

[0021] As a further description of the above technical solution:

[0022] The rebound assembly comprises a second spring, one end of the second spring is fixedly connected to the side wall of the hollow groove plate, and the other end of the second spring is fixedly connected to one end of the thimble.

[0023] The utility model has the advantages of:

[0024] 1. The utility model discloses a first spring is retracted to the inside of the first support through the rotation handle, and the first spring retraction makes it slide, reaches the effect of self -adaptation regulation circular knife roll pressure, solves the problem of the easy cutting unevenness, burr, delamination or residual glue of material thickness fluctuation or tool wear when pressure is fixed or needs manual regulation, improves the stability of flexible circuit board die cutting device.

[0025] 2. The utility model discloses a first connecting plate and rotary plate are driven to rotate through the rotation of the rotary disc and drive the sleeve ring to slide, and the second connecting plate is driven to slide in the inside of the empty groove board by the stress of the rotary plate, reaches the effect of adjusting the winding diameter, solves the problem that cannot adjust the winding diameter, thereby cannot adapt to different production demand, limits the product diversity, improves the practicality of flexible circuit board die cutting device. DRAWINGS

[0026] Figure 1 It is a three -dimensional schematic view of the flexible circuit board die cutting device of the utility model;

[0027] Figure 2 It is the limiting plate section structure schematic view of the flexible circuit board die cutting device of the utility model;

[0028] Figure 3 It is the third support top structure schematic view of the flexible circuit board die cutting device of the utility model.

[0029] Legend:

[0030] 1, base; 2, first support; 3, rotating roller; 4, second support; 5, circular knife roller; 6, handle; 7, first spring; 8, first sliding block; 9, limiting plate; 10, rotating shaft; 11, third support; 12, motor; 13, empty groove board; 14, rotary disc; 15, second threaded rod; 16, sleeve ring; 17, first connecting plate; 18, second connecting plate; 19, rotary plate; 20, second sliding block; 21, second spring; 22, limiting block. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] Reference Figure 1 And Figure 2The utility model provides a kind of embodiment: a flexible circuit board die cutting device, including base 1, base 1 adopts high-strength cast iron material, with good stability and bearing capacity, can withstand the weight of entire device and impact force when working, guarantee the stability of die cutting process, base 1 top is fixedly connected with rotating roller 3, rotating roller 3 adopts stainless steel material, surface is smooth and has higher hardness, can reduce the friction with flexible circuit board, prolong service life, base 1 top is fixedly connected with second support 4, and second support 4 top is fixedly connected with multiple rotating roller 3, base 1 top is fixedly connected with first support 2, base 1 top is provided with support assembly, and first support 2 inside is provided with adjusting assembly;

[0033] Adjusting assembly includes first spring 7, first spring 7 adopts high-quality piano wire material, with good elasticity and fatigue resistance, can provide stable rebound force, ensure the uniformity of die cutting pressure, first spring 7 one end is fixedly connected in first support 2, and first spring 7 other end is fixedly connected with first sliding block 8, first sliding block 8 adopts engineering plastic material, with good wear resistance and self-lubricating, can reduce the friction in first support 2, improve the smoothness of sliding, first sliding block 8 top is fixedly connected with handle 6, first sliding block 8 side wall is fixedly connected with limit block 22, limit block 22 adopts high-strength aluminum alloy material, light weight and high strength, can effectively limit the position of first sliding block 8, prevent excessive sliding, limit block 22 side wall is slidably connected in first support 2, first sliding block 8 inside is rotatably connected with rotating shaft 10, rotating shaft 10 one end is fixedly connected with limit plate 9, limit plate 9 adopts high-strength carbon steel material, can effectively limit the position of rotating shaft 10, ensure its stable rotation, rotating shaft 10 outer wall is fixedly connected with circular knife roller 5.

[0034] Refer to Figure 1 And Figure 3The supporting assembly comprises a third support 11 made of high-strength carbon steel, which has good rigidity and stability and can provide firm support for the motor 12. The third support 11 is fixedly connected to the top of the base 1, and the motor 12 is fixedly connected to the top of the third support 11. The output end of the motor 12 is fixedly connected with a second threaded rod 15 made of stainless steel, which has high strength and corrosion resistance and can withstand a certain torque and tension. The second threaded rod 15 is threadedly connected with a turntable 14 made of aluminum alloy, which is light in weight and high in strength and can smoothly rotate on the second threaded rod 15. The outer wall of the second threaded rod 15 is slidably connected with a sleeve ring 16 made of bronze, which has good wear resistance and self-lubricating properties and can reduce friction with the second threaded rod 15 and improve the smoothness of sliding. One end of the sleeve ring 16 is provided at one end of the turntable 14, and the outer wall of the sleeve ring 16 is fixedly connected with a first connecting plate 17 made of high-strength aluminum alloy, which is light in weight and high in strength and can effectively connect the sleeve ring 16 and a rotating plate 19. The inner wall of the first connecting plate 17 is rotatably connected with the rotating plate 19, and the side wall of the rotating plate 19 is rotatably connected with a second connecting plate 18. The side wall of the second connecting plate 18 is fixedly connected with a second sliding block 20 made of engineering plastic, which has good wear resistance and self-lubricating properties and can reduce friction with the hollow groove plate 13 and improve the smoothness of sliding. The side wall of the second sliding block 20 is slidably connected with the hollow groove plate 13, and the side wall of the hollow groove plate 13 is fixedly connected to the side wall of the motor 12. The side wall of the hollow groove plate 13 is provided with a rebound assembly comprising a second spring 21 made of high-quality piano wire, which has good elasticity and fatigue resistance and can provide stable rebound force to ensure the accuracy of the reset of the sleeve ring 16. One end of the second spring 21 is fixedly connected to the side wall of the hollow groove plate 13, and the other end of the second spring 21 is fixedly connected to one end of the sleeve ring 16.

[0035] Working principle: when using the flexible circuit board die cutting device, and when adjusting the pressure of the circular knife roller 5, first, the handle 6 is rotated, the handle 6 is stressed to drive the first spring 7 on the outer wall to contract, the first spring 7 contracts linearly along the center point of the first support 2, then the first spring 7 drives the first sliding block 8 to move in the first support 2, and the first sliding block 8 moves in the process to drive the limiting block 22 on the side wall to slide in the first support 2, next, the first sliding block 8 is stressed to drive the rotating shaft 10 in the process to move together, and in the process of moving the rotating shaft 10, the circular knife roller 5 on the outer wall is driven to move in the side wall of the first support 2, and the rotating shaft 10 moves in the process to drive the limiting plate 9 at one end to move together, achieving the effect of self-adapting adjustment of the pressure of the circular knife roller 5.

[0036] Then in the process of adjusting the winding diameter, the rotating disc 14 is rotated, the rotating disc 14 is rotated after being stressed on the outer wall of the second threaded rod 15, then the rotating disc 14 is linearly moved along the center point of the second threaded rod 15, then the rotating disc 14 is moved to abut against the side wall of the sleeve 16 and make it slide on the outer wall of the second threaded rod 15, then the sleeve 16 is stressed to rotate the first connecting plate 17 on the outer wall, then the first connecting plate 17 is stressed to rotate the rotating plate 19 on the inner wall, then the rotating plate 19 is stressed to rotate the second connecting plate 18 on the side wall, then the second connecting plate 18 is stressed to slide the second sliding block 20 on the inside of the air slot plate 13, then the side wall of the second connecting plate 18 is attached to the inner wall of the winding drum, so that the winding diameter is adjusted.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A flexible circuit board die cutting apparatus comprising a base (1) characterised in that: The base (1) top fixedly connected with rotating roller (3), the base (1) top fixedly connected with second support (4), the second support (4) top fixedly connected with a plurality of rotating roller (3), the base (1) top fixedly connected with first support (2), the base (1) top is provided with support assembly, the first support (2) is provided with adjusting assembly inside; The adjusting assembly includes a first spring (7), one end of the first spring (7) is fixedly connected in the first support (2), the other end of the first spring (7) is fixedly connected with a first sliding block (8), the first sliding block (8) top is fixedly connected with a handle (6), the first sliding block (8) side wall is fixedly connected with a limiting block (22), the limiting block (22) side wall is slidably connected in the first support (2), the first sliding block (8) is rotatably connected with a rotating shaft (10) inside, one end of the rotating shaft (10) is fixedly connected with a limiting plate (9), the rotating shaft (10) outer wall is fixedly connected with a circular knife roller (5).

2. The flexible circuit board die cutting apparatus of claim 1, wherein: The support assembly includes a third support (11), the third support (11) bottom is fixedly connected on the base (1) top.

3. The flexible circuit board die cutting apparatus of claim 2, wherein: The third support (11) top is fixedly connected with a motor (12), the motor (12) output end is fixedly connected with a second threaded rod (15).

4. The flexible circuit board die cutting apparatus of claim 3, wherein: The second threaded rod (15) outer wall is threadedly connected with a rotating disc (14), the second threaded rod (15) outer wall is slidably connected with a thimble (16).

5. The flexible circuit board die cutting apparatus of claim 4, wherein: One end of the thimble (16) is provided on one end of the rotating disc (14), the thimble (16) outer wall is fixedly connected with a first connecting plate (17).

6. The flexible circuit board die cutting apparatus of claim 5 wherein: The first connecting plate (17) inner wall is rotatably connected with a rotating plate (19), the rotating plate (19) side wall is rotatably connected with a second connecting plate (18).

7. The flexible circuit board die cutting apparatus of claim 6, wherein: The second connecting plate (18) side wall is fixedly connected with a second sliding block (20), the second sliding block (20) side wall is slidably connected with a hollow groove plate (13), the hollow groove plate (13) side wall is fixedly connected on the motor (12) side wall, the hollow groove plate (13) side wall is provided with a rebound assembly.

8. The flexible circuit board die cutting apparatus of claim 7, wherein: The rebound assembly includes a second spring (21), one end of the second spring (21) is fixedly connected on the hollow groove plate (13) side wall, the other end of the second spring (21) is fixedly connected on one end of the thimble (16).

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