A high-efficiency flexible circuit board trimming die

Abstract

The utility model discloses a high-efficiency flexible circuit board trimming die, comprising an upper die and a lower die, a trimming knife is arranged on the bottom end of the upper die, a spring is arranged at each corner of the bottom end of the upper die, a same pressing plate is connected to the bottom ends of a plurality of springs, a first notch is arranged on the pressing plate, the first notch corresponds to the trimming knife, a second notch is arranged on the lower die, the second notch corresponds to the first notch and the trimming knife, a first sliding groove is arranged on the top end of the upper die, a bidirectional screw is rotatably installed in the first sliding groove, in the utility model, the upper die is pressed down and connected with the spring so that the pressing plate presses down the flexible circuit board between the two first positioning rods and the second positioning rods, the upper die that is continuously pressed down drives the trimming knife to press down and cut the corners of the flexible circuit board, compared with the prior art, the flexible circuit board is trimmed by pressing down, the structure is simple, the operation is convenient, and the trimming efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of edge trimming of flexible circuit boards, in particular to a high-efficiency edge trimming die for flexible circuit boards. Background Art

[0002] The invention with publication number CN108687865A relates to the technical field of flexible circuit board accessory devices, and in particular to a flexible circuit board trimming device, which can enable the flexible circuit board to be well transported and transmitted on the trimming roller, prevent the two sides from curling up, can be well pressed and attached, improve the trimming effect, and improve the reliability of use; and can simultaneously cut both sides of the flexible circuit board, can adjust the cutting position, and reduce the limitations of use; including a top plate, an electric cylinder, a reinforcement block, a left side plate, a right side plate, a bottom plate, a trimming roller, a trimming motor, a left support block, a right support block, a left support plate and a right support plate; including a left rotating shaft, a right rotating shaft, a left guide roller, a right guide roller, a left locking screw and a right locking screw; also including two groups of left locking nuts, two groups of right locking nuts, a left circular knife, a right circular knife, a left adjusting threaded rod, a right adjusting threaded rod, a mounting block, a left motor and a right motor, and the top of the mounting block is connected to the bottom output end of the electric cylinder.

[0003] The prior art has a complex structure and is inconvenient to operate, resulting in a low efficiency in trimming the flexible circuit board. Therefore, a high-efficiency flexible circuit board trimming die is needed to meet people's needs. Utility Model Content

[0004] The utility model aims to provide a high-efficiency flexible circuit board trimming die to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency flexible circuit board trimming die, comprising an upper die and a lower die, a trimming knife is arranged on the bottom end of the upper die, a spring is arranged at each corner of the bottom end of the upper die, a plurality of springs are connected to the same pressing plate at the bottom ends, a first notch is arranged on the pressing plate, the first notch corresponds to the trimming knife, a second notch is arranged on the lower die, the second notch corresponds to the first notch and the trimming knife, a first slide groove is arranged on the top end of the upper die, a bidirectional screw is rotatably installed in the first slide groove A first handwheel is connected to one end of the bidirectional screw, and a first slider and a second slider are respectively threadedly connected to the bidirectional screw, and a first positioning rod is connected to the first slider and the second slider, and the two first positioning rods are distributed parallel to each other. A second sliding groove is opened on the top of the lower mold, and a one-way screw is rotatably installed in the second sliding groove. A second handwheel is connected to one end of the one-way screw, and a third slider is threadedly connected to the one-way screw. The third slider is connected to the second positioning rod, and the second positioning rod is located between the two first positioning rods and is distributed perpendicular to the first positioning rod.

[0006] Preferably, a guide rod is provided on each corner of the top end of the lower die, and the pressure plate and the upper die are slidably mounted on a plurality of guide rods.

[0007] Preferably, the bottom end height of the pressing plate is lower than the bottom end height of the trimming knife.

[0008] Preferably, a rubber plate is provided on the bottom end of the pressing plate, and the rubber plate is located directly above the first positioning rod and the second positioning rod.

[0009] Preferably, a waste groove is provided on one side of the lower mold, the waste groove is inclined from the outer side to the inner side of the lower mold and from bottom to top, and is communicated with the second notch.

[0010] Preferably, the cross-sections of the first sliding groove and the second sliding groove are both convex, and the first sliding block, the second sliding block and the third sliding block are all correspondingly convex.

[0011] Preferably, a plurality of rollers are rotatably mounted on the sides of the two first positioning rods that are close to each other.

[0012] The beneficial effects of the utility model are:

[0013] In the utility model, the upper mold is pressed down, and the pressure plate is pressed down to press the flexible circuit board between the two first positioning rods and the second positioning rods through the connection of the spring. The upper mold that is continuously pressed down drives the trimming knife to press down to cut the corners of the flexible circuit board. Compared with the prior art, the flexible circuit board is trimmed by pressing down, the structure is simple, the operation is convenient, and the trimming efficiency is greatly improved.

[0014] In the utility model, the first slider and the second slider are moved synchronously relative to each other through the rotation of the bidirectional screw, so that the two first positioning rods can laterally position the flexible circuit boards of different specifications to ensure the neatness of the side after cutting. The third slider is moved through the rotation of the unidirectional screw, thereby realizing the adjustment of the cutting length of the flexible circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a high-efficiency flexible circuit board trimming die proposed by the utility model;

[0016] Figure 2 This is a front cross-sectional structural schematic diagram of a high-efficiency flexible circuit board trimming die proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the first slideway of a high-efficiency flexible circuit board trimming die proposed by the utility model;

[0018] Figure 4The utility model provides a schematic diagram of the front cross-sectional structure of a guide rod of a high-efficiency flexible circuit board trimming die.

[0019] In the figure: 1. upper die; 2. lower die; 3. trimming knife; 4. spring; 5. pressure plate; 6. first notch; 7. second notch; 8. first slide groove; 9. bidirectional screw; 10. first hand wheel; 11. first slider; 12. second slider; 13. first positioning rod; 14. second slide groove; 15. unidirectional screw; 16. second hand wheel; 17. third slider; 18. second positioning rod; 19. guide rod; 20. rubber sheet; 21. waste trough; 22. roller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4 A high-efficiency flexible circuit board trimming die comprises an upper die 1 and a lower die 2. A trimming knife 3 is arranged on the bottom end of the upper die 1. A spring 4 is arranged at each corner of the bottom end of the upper die 1. The bottom ends of several springs 4 are connected to the same pressing plate 5. A first notch 6 is provided on the pressing plate 5. The first notch 6 corresponds to the trimming knife 3. A second notch 7 is provided on the lower die 2. The second notch 7 corresponds to the first notch 6 and the trimming knife 3. A first slide groove 8 is provided on the top of the upper die 1. A bidirectional screw 9 is rotatably installed in the first slide groove 8. One end of the bidirectional screw 9 is connected to a first hand wheel 10. The bidirectional The screw rod 9 is respectively threadedly connected with a first slider 11 and a second slider 12, and the first slider 11 and the second slider 12 are both connected with a first positioning rod 13, and the two first positioning rods 13 are distributed parallel to each other. A second slide groove 14 is opened on the top of the lower mold 2, and a one-way screw rod 15 is rotatably installed in the second slide groove 14, and a second hand wheel 16 is connected to one end of the one-way screw rod 15. A third slider 17 is threadedly connected to the one-way screw 15, and the third slider 17 is connected with a second positioning rod 18. The second positioning rod 18 is located between the two first positioning rods 13 and is distributed perpendicular to the first positioning rod 13.

[0022] The flexible circuit board is placed on the lower mold 2, and the first hand wheel 10 is rotated to make the first slider 11 and the second slider 12 move relatively. The two first positioning rods 13 are respectively in contact with the two sides of the flexible circuit board, thereby realizing lateral positioning. The second hand wheel 16 is rotated to make the third slider 17 drive the second positioning rod 18 to move and contact with the other vertical side of the flexible circuit board. During the rotation process, the part of the flexible circuit board extending from the second notch 7 is the side to be cut. The upper mold 1 is fixed on the hydraulic device, and the hydraulic device is driven to press the upper mold 1 downward. The pressing plate 5 first contacts with the flexible circuit board. The upper mold 1 is continuously pressed downward to compress the spring 4. The trimming knife 3 passes through the first notch 6 and cuts off the side after contacting the flexible circuit board, thereby completing the trimming operation of the flexible circuit board. When the flexible circuit board of the same specification needs to be trimmed, the flexible circuit board is inserted between the two first positioning rods 13 until the vertical side contacts with the second positioning rod 18, that is, the specifications of the flexible circuit board after trimming are unified.

[0023] Specifically, in this embodiment, a guide rod 19 is provided on each corner of the top of the lower mold 2, and the pressure plate 5 and the upper mold 1 are slidably mounted on a plurality of guide rods 19 to provide accurate positioning for the trimming knife 3, the first notch 6 and the second notch 7.

[0024] Specifically, in this embodiment, the bottom end height of the pressing plate 5 is lower than the bottom end height of the trimming knife 3 , and when the flexible circuit board is replaced in the house, the trimming knife 3 may be accidentally touched to cause personal injury.

[0025] Specifically, in this embodiment, a rubber plate 20 is provided on the bottom end of the pressing plate 5, and the rubber plate 20 is located directly above the first positioning rod 13 and the second positioning rod 18. The elasticity of the rubber plate 20 can press the flexible circuit board that is lower than the height of the first positioning rod 13 and the second positioning rod 18.

[0026] Specifically, in this embodiment, a waste groove 21 is opened on one side of the lower mold 2. The waste groove 21 is inclined from the outside to the inside of the lower mold 2 and from bottom to top, and is connected to the second notch 7. The waste groove 21 can discharge the cut scraps from the second notch 7.

[0027] Specifically, in this embodiment, the cross-sections of the first slide groove 8 and the second slide groove 14 are convex, and the first slider 11, the second slider 12 and the third slider 17 are correspondingly convex, providing a stable sliding space for the first slider 11, the second slider 12 and the third slider 17, and reducing the gap on the lower mold 2 to prevent the flexible circuit board from collapsing in the gap and causing errors in the cutting edge size.

[0028] Specifically, in this embodiment, a plurality of rollers 22 are rotatably mounted on the sides of the two first positioning rods 13 that are close to each other, so as to facilitate the insertion and removal of the flexible circuit board between the two first positioning rods 13 at the second notches 7 .

[0029] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A high-efficiency flexible circuit board trimming die, comprising an upper die (1) and a lower die (2), characterized in that: A trimming knife (3) is arranged at the bottom end of the upper mold (1), a spring (4) is arranged at each corner of the bottom end of the upper mold (1), a plurality of springs (4) are connected to the same pressing plate (5) at their bottom ends, a first notch (6) is provided on the pressing plate (5), the first notch (6) and the trimming knife (3) correspond to each other, a second notch (7) is provided on the lower mold (2), the second notch (7) corresponds to the first notch (6) and the trimming knife (3), a first slide groove (8) is provided on the top end of the upper mold (1), a bidirectional screw rod (9) is rotatably installed in the first slide groove (8), one end of the bidirectional screw rod (9) is connected to a first hand wheel (10), and the bidirectional screw rod (9) is threaded respectively. A first slider (11) and a second slider (12) are connected, and the first slider (11) and the second slider (12) are both connected to a first positioning rod (13), and the two first positioning rods (13) are arranged parallel to each other. A second slide groove (14) is provided on the top of the lower mold (2), and a one-way screw rod (15) is rotatably installed in the second slide groove (14), and a second hand wheel (16) is connected to one end of the one-way screw rod (15), and a third slider (17) is threadedly connected to the one-way screw rod (15), and the third slider (17) is connected to a second positioning rod (18), and the second positioning rod (18) is located between the two first positioning rods (13) and is arranged perpendicular to the first positioning rod (13).

2. A high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: A guide rod (19) is provided at each corner of the top end of the lower die (2), and the pressing plate (5) and the upper die (1) are both slidably mounted on a plurality of guide rods (19).

3. A high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: The bottom end height of the pressing plate (5) is lower than the bottom end height of the trimming knife (3).

4. A high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: A rubber plate (20) is provided on the bottom end of the pressing plate (5), and the rubber plate (20) is located directly above the first positioning rod (13) and the second positioning rod (18).

5. The high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: A waste groove (21) is provided on one side of the lower mold (2). The waste groove (21) is inclined from the outer side to the inner side of the lower mold (2) and from bottom to top, and is communicated with the second notch (7).

6. A high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: The cross sections of the first slide groove (8) and the second slide groove (14) are both convex, and the first slider (11), the second slider (12) and the third slider (17) are all correspondingly convex.

7. A high-efficiency flexible circuit board trimming die according to claim 1, characterized in that: A plurality of rollers (22) are rotatably mounted on the sides of the two first positioning rods (13) that are close to each other.

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