Precise foil strip slitting device

Abstract

The utility model relates to the technical field of slitting devices, in particular to a precise foil tape slitting device which comprises a machine frame and further comprises a slitting portion, a cutting portion, a cutting portion, a cutting portion, a cutting portion, a cutting portion and a cutting portion, and the cutting portion is arranged in the middle of the machine frame and used for storing and rolling foil tapes. When the tension of the foil tape of the stripping part is too small, the height of the adjusting part is increased, and when the tension of the foil tape of the stripping part is too large, the height of the adjusting part is reduced; when the tension of the foil tape is too small, the pressure of the foil tape on the adjusting roller is reduced, the clockwork spring rebounds, the adjusting roller is driven to rotate anticlockwise around the supporting roller, the height of the adjusting roller is increased, the distance of the foil tape from the driving roller to the guide roller is prolonged, the tension of the foil tape is increased, it is guaranteed that the foil tape is accurately cut by the blade, and the slitting precision of the foil tape is improved; when the tension of the foil belt is too large, the pressure of the foil belt on the adjusting roller is increased, so that the adjusting roller rotates clockwise around the supporting roller, the height of the adjusting roller is reduced, and the distance of the foil belt from the driving roller to the guide roller is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slitting devices, in particular to a precise slitting device for foil strips such as copper foil or aluminum foil. Background Art

[0002] Copper foil is a cathodic electrolytic material, a thin, continuous layer of metal deposited on the substrate of a circuit board. Copper foil is a key material in the manufacture of copper-clad laminates (CCLs), printed circuit boards (PCBs), and lithium-ion batteries. In today's rapidly developing electronic information industry, electrolytic copper foil has been called the "neural network" for signal and power transmission and communication in electronic products. Copper foil is primarily divided into electronic circuit copper foil (used in CCLs and PCBs) and lithium battery copper foil (primarily used in power lithium batteries, consumer lithium batteries, and energy storage lithium batteries) based on downstream demand. The growth in demand for lithium battery copper foil is primarily driven by power lithium batteries. The accelerated development of new infrastructure such as 5G and IDC will also drive demand for copper foil. Aluminum foil is soft, ductile, and has a silvery-white luster. It is moisture-resistant, airtight, light-blocking, abrasion-resistant, and non-toxic and odorless. It is widely used in industries such as food, beverages, cigarettes, pharmaceuticals, photographic plates, household goods, construction, and vehicles. Before use, copper and aluminum foil must be cut into appropriate sizes using a slitting device.

[0003] The commonly used foil strip slitting device cannot adjust the tension of copper foil and aluminum foil. When the tension is too small, the surface of copper foil and aluminum foil becomes loose, which affects the slitting accuracy. When the tension is too large, the copper foil and aluminum foil are easily broken. Utility Model Content

[0004] The main purpose of the utility model is to provide a precise foil strip slitting device to solve the problem that the commonly used copper foil and aluminum foil slitting device proposed in the relevant technology cannot adjust the tension of the copper foil and the aluminum foil. When the tension is too small, the surface of the copper foil and the aluminum foil becomes loose, affecting the slitting accuracy. When the tension is too large, the copper foil and the aluminum foil are easily broken.

[0005] To achieve the above-mentioned object, according to one aspect of the present invention, a foil strip precision slitting device is provided, comprising a frame, and further comprising: a slitting portion, the slitting portion being arranged in the middle of the frame and being used for storing and winding the foil strip;

[0006] A cutter, fixedly provided in the middle of the frame, for stripping the foil strip of the stripping portion;

[0007] The adjustment part is arranged in the middle of the frame. When the tension of the foil in the striping part is too small, the height of the adjustment part is increased to extend the distance the foil passes through the striping part. When the tension of the foil in the striping part is too large, the height of the adjustment part is lowered to reduce the distance the foil passes through the striping part.

[0008] Further, the strip dividing part includes an unwinding roller, a driving roller, a driven roller, a guiding roller, a first winding roller and a second winding roller. The unwinding roller is rotatably arranged in the middle of the frame and is used for storing the foil strip. One end of the unwinding roller is fixedly provided with a power source, and the power source is fixedly arranged inside one side of the frame and is used for driving the unwinding roller to rotate.

[0009] Further, the driving roller is rotatably arranged in the middle of the frame. One end of the driving roller is fixedly provided with a power source, and the power source is fixedly arranged inside one side of the frame and is used for driving the driving roller to rotate. One end of the driving roller is fixedly provided with a gear, and the gear is arranged inside one side of the frame.

[0010] Further, the driven roller is rotatably arranged in the middle of the frame and is located above the driving roller. One end of the driven roller is fixedly provided with a gear, and the gear is arranged inside one side of the frame. The gear meshes with the gear at one end of the driving roller, and the driven roller and the driving roller are located behind the unwinding roller.

[0011] Further, the guiding roller is rotatably arranged in the middle of the frame. One end of the guiding roller is fixedly provided with a power source, and the power source is fixedly arranged inside one side of the frame and is used for driving the guiding roller to rotate. The guiding roller is located behind the driven roller and the driving roller.

[0012] Further, both the first winding roller and the second winding roller are rotatably arranged in the middle of the frame and are used for winding and storing the divided foil strip. One ends of both the first winding roller and the second winding roller are fixedly provided with power sources, and the power sources are fixedly arranged inside one side of the frame and are used for driving the first winding roller and the second winding roller to rotate. Both the first winding roller and the second winding roller are located above the guiding roller, and the second winding roller is located obliquely below the first winding roller.

[0013] Further, the cutting knife includes a knife rest, a guide rail and a plurality of blades. The knife rest is fixedly arranged in the middle of the frame and is located between the adjusting part and the driven roller. The guide rail is fixedly arranged on the knife rest, and the blades are all arranged on the guide rail.

[0014] Further, the adjusting part includes an adjusting roller, a supporting roller, two brackets, a protective cover, a spring, a pull rope, a fixing piece, a plurality of fixing holes and a spiral spring. The supporting roller is rotatably arranged in the middle of the frame. The bottoms of the brackets are respectively fixedly arranged at both ends of the supporting roller. The adjusting roller is fixedly arranged between the tops of the two brackets, and threads are fixedly arranged on the surface of the adjusting roller.

[0015] Further, the protective cover is fixedly arranged at the bottom of the bracket. The supporting roller passes through the protective cover and can rotate along the protective cover. The spiral spring is arranged inside the protective cover. One end of the spiral spring is fixedly connected with the supporting roller, and the other end is fixedly connected with the protective cover.

[0016] Further, one end of the spring is fixedly connected to one end of the bracket, and the other end is fixedly connected to the pulling rope. The other end of the pulling rope is fixedly connected to the fixing piece. The fixing holes are all arranged through the fixing piece, and the fixing piece is movably connected to the machine frame through the fixing holes.

[0017] Compared with the prior art, the utility model has the following beneficial effects: The driving roller drives the driven roller to rotate, and the foil strip between the two is flattened. When the foil strip passes through the cutting knife, it is cut into small strips by the blade, and then is guided by the guiding roller and evenly wound on the first winding roller and the second winding roller; When the tension of the foil strip is too small, the pressure on the adjusting roller decreases, and the clockwork spring rebounds, driving the adjusting roller to rotate counterclockwise around the supporting roller, and the height of the adjusting roller increases, extending the distance of the foil strip from the driving roller to the guiding roller, increasing the tension of the foil strip, ensuring that the blade accurately cuts it, and improving the precision of the foil strip slitting; When the tension of the foil strip is too large, the pressure on the adjusting roller increases, causing the adjusting roller to rotate clockwise around the supporting roller, and the height of the adjusting roller decreases, reducing the distance of the foil strip from the driving roller to the guiding roller, reducing the tension of the foil strip, and avoiding the foil strip from being pulled off. Description of the Drawings

[0018] Figure 1 is the overall schematic diagram of the utility model;

[0019] Figure 2 is the schematic diagram of the structure of the slitting part of the utility model;

[0020] Figure 3 is the schematic diagram of the structure of the cutting knife of the utility model;

[0021] Figure 4 is the schematic diagram of the structure of the adjusting part of the utility model;

[0022] Figure 5 is the schematic diagram of the position of the clockwork spring of the utility model.

[0023] Illustration:

[0024] 1. Machine frame;

[0025] 2. Slitting part; 21. Unwinding roller; 22. Driving roller; 23. Driven roller; 24. Guiding roller; 25. First winding roller; 26. Second winding roller;

[0026] 3. Cutting knife; 31. Knife rest; 32. Guide rail; 33. Blade;

[0027] 4. Adjusting part; 41. Adjusting roller; 42. Supporting roller; 43. Bracket; 44. Protective cover; 45. Spring; 46. Pulling rope; 47. Fixing piece; 48. Fixing hole; 49. Clockwork spring. Detailed Embodiment

[0028] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following will, in conjunction with the accompanying drawings and preferred embodiments, detail the specific implementation manners, structures, features, and their effects of the present utility model as follows.

[0029] Please refer to Figures 1 to 5 , this embodiment provides a precision slitting device for foil strips, including a frame 1, and further including: a slitting part 2, which is arranged in the middle of the frame 1 and is used for storing and winding the foil strips;

[0030] A cutting knife 3, which is fixedly arranged in the middle of the frame 1 and slits the foil strips of the slitting part 2;

[0031] An adjusting part 4, which is arranged in the middle of the frame 1. When the tension of the foil strips of the slitting part 2 is too small, the height of the adjusting part 4 rises, extending the distance that the foil strips pass through the slitting part 2, expanding the tension of the foil strips. When the tension of the foil strips of the slitting part 2 is too large, the height of the adjusting part 4 drops, reducing the distance that the foil strips pass through the slitting part 2, reducing the tension of the foil strips, and maintaining the tension of the foil strips within a certain range.

[0032] The slitting part 2 includes an unwinding roller 21, a driving roller 22, a driven roller 23, a guiding roller 24, a first winding roller 25, and a second winding roller 26. The unwinding roller 21 is rotatably arranged in the middle of the frame 1 and is used for storing the foil strips. One end of the unwinding roller 21 is fixedly provided with a power source, which is preferably a motor in this embodiment. The power source is fixedly arranged inside one side of the frame 1 and is used to drive the unwinding roller 21 to rotate.

[0033] The driving roller 22 is rotatably arranged in the middle of the frame 1. One end of the driving roller 22 is fixedly provided with a power source, which is preferably a motor in this embodiment. The power source is fixedly arranged inside one side of the frame 1 and is used to drive the driving roller 22 to rotate. One end of the driving roller 22 is fixedly provided with a gear, and the gear is arranged inside one side of the frame 1.

[0034] The driven roller 23 is rotatably arranged in the middle of the frame 1 and is located above the driving roller 22. One end of the driven roller 23 is fixedly provided with a gear, and the gear is arranged inside one side of the frame 1. This gear meshes with the gear at one end of the driving roller 22. The rotation of the driving roller 22 can drive the rotation of the driven roller 23. The driven roller 23 and the driving roller 22 are located behind the unwinding roller 21.

[0035] The guiding roller 24 is rotatably arranged in the middle of the frame 1. One end of the guiding roller 24 is fixedly provided with a power source, which is preferably a motor in this embodiment. The power source is fixedly arranged inside one side of the frame 1 and is used to drive the guiding roller 24 to rotate. The guiding roller 24 guides and conveys the foil strips, increasing their flatness. The guiding roller 24 is located behind the driven roller 23 and the driving roller 22.

[0036] The first winding roller 25 and the second winding roller 26 are both rotatably arranged in the middle of the frame 1 to wind and store the slit foil strip. A power source is fixedly arranged at one end of each of the first winding roller 25 and the second winding roller 26. In this embodiment, it is preferably a motor. The power source is fixedly arranged inside one side of the frame 1 and is used to drive the first winding roller 25 and the second winding roller 26 to rotate. Both the first winding roller 25 and the second winding roller 26 are located above the guiding roller 24. The second winding roller 26 is located obliquely below the first winding roller 25. The first winding roller 25 and the second winding roller 26 alternately wind the slit foil strip to prevent the slit foil strips from interfering with each other.

[0037] The cutting knife 3 includes a tool holder 31, a guide rail 32 and a plurality of blades 33. The tool holder 31 is fixedly arranged in the middle of the frame 1 and is located between the adjusting part 4 and the driven roller 23. The guide rail 32 is fixedly arranged on the tool holder 31, and the blades 33 are all arranged on the guide rail 32 to slit the foil strip.

[0038] The adjusting part 4 includes an adjusting roller 41, a supporting roller 42, two brackets 43, a protective cover 44, a spring 45, a pull rope 46, a fixing piece 47, a plurality of fixing holes 48 and a clockwork spring 49. The supporting roller 42 is rotatably arranged in the middle of the frame 1. The bottoms of the brackets 43 are respectively fixedly arranged at both ends of the supporting roller 42. The adjusting roller 41 is fixedly arranged between the tops of the two brackets 43. Threads are fixedly arranged on the surface of the adjusting roller 41 to increase the friction between the foil strip and the adjusting roller 41 and avoid sliding between the two.

[0039] The protective cover 44 is fixedly arranged at the bottom of the bracket 43. The supporting roller 42 passes through the protective cover 44 and can rotate along the protective cover 44. The clockwork spring 49 is arranged inside the protective cover 44. One end of the clockwork spring 49 is fixedly connected to the supporting roller 42, and the other end is fixedly connected to the protective cover 44. When the clockwork spring 49 rebounds, the adjusting roller 41 rises. When the clockwork spring 49 is tightened, the adjusting roller 41 drops.

[0040] One end of the spring 45 is fixedly connected to one end of the bracket 43, and the other end is fixedly connected to the pull rope 46. The other end of the pull rope 46 is fixedly connected to the fixing piece 47. The fixing holes 48 are all penetrated through the fixing piece 47. The fixing piece 47 is movably connected to the frame 1 through the fixing holes 48. By pulling the fixing piece 47 to adjust the original height of the adjusting roller 41, the spring 45 elongates, the adjusting roller 41 drops, and when the spring 45 rebounds, the adjusting roller 41 rises. The spring 45 and the clockwork spring 49 cooperate with each other to adjust the height of the adjusting roller 41.

[0041] Extract the foil tape on the unwind roller 21, pass it through between the driving roller 22 and the driven roller 23, lift it upward over the cutter 3, pull it downward after winding around the adjusting roller 41, and then pass it out from below the guiding roller 24, and wind it around the first winding roller 25 or the second winding roller 26. Start the motors of the unwind roller 21, the driving roller 22, and the guiding roller 24 respectively. The motors drive the unwind roller 21, the driving roller 22, and the guiding roller 24 to rotate, extract the foil tape on the unwind roller 21, the driving roller 22 drives the driven roller 23 to rotate, and flatten the foil tape between them. When the foil tape passes through the cutter 3, it is cut into small strips by the blade 33, and after being guided by the guiding roller 24, it is evenly wound around the first winding roller 25 or the second winding roller 26. When the cut foil tape reaches the first winding roller 25 or the second winding roller 26, turn off the motors of the unwind roller 21, the driving roller 22, and the guiding roller 24, and the foil tape stops being extracted. Cut and remove the foil tape on the first winding roller 25 or the second winding roller 26, wind the cut foil tape around the first winding roller 25 and the second winding roller 26 in sequence, and start the motors of the unwind roller 21, the driving roller 22, and the guiding roller 24 again. The foil tape continues to be extracted and divided. When the tension of the foil tape is too small, its pressure on the adjusting roller 41 decreases, the clockwork spring 49 rebounds, drives the adjusting roller 41 to rotate counterclockwise around the supporting roller 42, the height of the adjusting roller 41 increases, extends the distance of the foil tape from the driving roller 22 to the guiding roller 24, increases the tension of the foil tape, and ensures that the blade 33 accurately cuts it, improving the precision of the foil tape slitting; when the tension of the foil tape is too large, its pressure on the adjusting roller 41 increases, makes the adjusting roller 41 rotate clockwise around the supporting roller 42, the height of the adjusting roller 41 decreases, reduces the distance of the foil tape from the driving roller 22 to the guiding roller 24, reduces the tension of the foil tape, and avoids the foil tape from being pulled off.

[0042] The above is only the preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A precision slitting device for foil strips, comprising a frame (1), characterized in that, It also includes: A slitting section (2) which is arranged in the middle of the frame (1) and is used for storing and winding the foil tape; A cutting knife (3) which is fixedly arranged in the middle of the frame (1) and slits the foil tape of the slitting section (2); An adjusting section (4) which is arranged in the middle of the frame (1). When the tension of the foil tape in the slitting section (2) is too small, the height of the adjusting section (4) rises to extend the distance that the foil tape passes through the slitting section (2). When the tension of the foil tape in the slitting section (2) is too large, the height of the adjusting section (4) drops to reduce the distance that the foil tape passes through the slitting section (2).

2. The precision slitting device for foil strips according to claim 1, characterized in that, The slitting section (2) includes an unwinding roller (21), a driving roller (22), a driven roller (23), a guiding roller (24), a first winding roller (25) and a second winding roller (26). The unwinding roller (21) is rotatably arranged in the middle of the frame (1) for storing the foil tape. One end of the unwinding roller (21) is fixedly provided with a power source which is fixedly arranged inside one side of the frame (1) and is used for driving the unwinding roller (21) to rotate.

3. The precision slitting device for foil strips according to claim 2, characterized in that, The driving roller (22) is rotatably arranged in the middle of the frame (1). One end of the driving roller (22) is fixedly provided with a power source which is fixedly arranged inside one side of the frame (1) and is used for driving the driving roller (22) to rotate. One end of the driving roller (22) is fixedly provided with a gear which is arranged inside one side of the frame (1).

4. The precision slitting device for foil strips according to claim 2, characterized in that, The driven roller (23) is rotatably arranged in the middle of the frame (1) and is located above the driving roller (22). One end of the driven roller (23) is fixedly provided with a gear which is arranged inside one side of the frame (1). The gear meshes with the gear at one end of the driving roller (22). The driven roller (23) and the driving roller (22) are located behind the unwinding roller (21).

5. The precision slitting device for foil strips according to claim 2, characterized in that, The guiding roller (24) is rotatably arranged in the middle of the frame (1). One end of the guiding roller (24) is fixedly provided with a power source which is fixedly arranged inside one side of the frame (1) and is used for driving the guiding roller (24) to rotate. The guiding roller (24) is located behind the driven roller (23) and the driving roller (22).

6. The precision slitting device for foil strips according to claim 2, wherein Both the first winding roller (25) and the second winding roller (26) are rotatably arranged in the middle of the frame (1) and are used for winding and storing the slit foil tape. One end of both the first winding roller (25) and the second winding roller (26) is fixedly provided with a power source which is fixedly arranged inside one side of the frame (1) and is used for driving the first winding roller (25) and the second winding roller (26) to rotate. Both the first winding roller (25) and the second winding roller (26) are located above the guiding roller (24), and the second winding roller (26) is located obliquely below the first winding roller (25).

7. The precision slitting device for foil strips according to claim 1, characterized in that, The cutting knife (3) includes a tool holder (31), a guide rail (32) and a plurality of blades (33). The tool holder (31) is fixedly arranged in the middle of the frame (1) and is located between the adjusting section (4) and the driven roller (23). The guide rail (32) is fixedly arranged on the tool holder (31), and the blades (33) are all arranged on the guide rail (32).

8. The precision slitting device for foil strips according to claim 1, wherein The adjusting part (4) includes an adjusting roller (41), a supporting roller (42), two brackets (43), a protective cover (44), a spring (45), a pulling rope (46), a fixing piece (47), a number of fixing holes (48) and a clockwork spring (49). The supporting roller (42) is rotatably arranged in the middle of the frame (1). The bottoms of the brackets (43) are respectively fixedly arranged at both ends of the supporting roller (42). The adjusting roller (41) is fixedly arranged between the tops of the two brackets (43). Threads are fixedly arranged on the surface of the adjusting roller (41).

9. The precision slitting device for foil strips according to claim 8, wherein The protective cover (44) is fixedly arranged at the bottom of the bracket (43). The supporting roller (42) passes through the protective cover (44) and can rotate along the protective cover (44). The clockwork spring (49) is arranged in the protective cover (44). One end of the clockwork spring (49) is fixedly connected to the supporting roller (42), and the other end is fixedly connected to the protective cover (44).

10. The precision slitting device for foil strips according to claim 8, characterized in that, One end of the spring (45) is fixedly connected to one end of the bracket (43), and the other end is fixedly connected to the pulling rope (46). The other end of the pulling rope (46) is fixedly connected to the fixing piece (47). The fixing holes (48) are all penetrated through the fixing piece (47). The fixing piece (47) is movably connected to the frame (1) through the fixing holes (48).

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