Electrode plate die cutting mechanism

Abstract

The utility model discloses an electrode slice die cutting mechanism which comprises a cam driving mechanism, a driving rod connected with the cam driving mechanism, a lifting platform driven by the driving rod, a die cutting knife arranged at the bottom of the lifting platform and a product positioning piece located below the die cutting knife, the product positioning piece is in a horizontal cylinder shape, and a horizontal machining face is arranged on the product positioning piece. The product positioning piece is pivoted to the rack and connected with the rotary driving unit, and a discharging container is arranged beside the product positioning piece. A product is positioned on the horizontal machining face, the cam driving mechanism drives the driving rod to descend, the lifting table is driven to descend, and the die-cutting knife cuts the product. And then, the rotary driving unit drives the product positioning piece to rotate towards one side of the discharging container, and the product is poured into the discharging container. Afterwards, the product positioning piece is reset, and die cutting of the next product is carried out. By means of the design, products subjected to die cutting can be conveniently blanked.

Description

Technical Field

[0001] The utility model relates to the field of electrode sheet processing, in particular to a cutting device for electrode sheets. Background Art

[0002] In the process of making electrode sheets, the electrode sheets need to be die-cut to form the required size and shape. The patent document with the authorization announcement number CN 219650091 U discloses a die-cutting mechanism for preventing the electrode sheets from curling, including a support mechanism arranged in an L shape, the support mechanism including a support horizontal plate and a support vertical plate, a die-cutting assembly is installed on the support horizontal plate, and a driving mechanism is used to drive the die-cutting assembly to perform die-cutting operations on the electrode sheets. The die-cutting assembly includes a crank rod that slides through the support horizontal plate, a mounting plate is hinged at the lower end of the crank rod, a knife seat is adjustably connected below the mounting plate, an electrode sheet fixing mechanism is arranged below the knife seat, and an anti-curling mechanism is installed on the side of the knife seat. The use of a stepper motor can realize precise control of the stretching roller, thereby ensuring the accuracy and stability of the stretching amount and stretching speed of the electrode sheet. However, the above patent document does not involve blanking the electrode sheet after die-cutting. Utility Model Content

[0003] The technical problem solved by the utility model is how to conveniently cut the electrode sheets after die cutting.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an electrode sheet die-cutting mechanism, including a cam driving mechanism, a driving rod connected to the cam driving mechanism, a lifting platform driven by the driving rod, a die-cutting knife arranged at the bottom of the lifting platform, and a product positioning member located below the die-cutting knife, the product positioning member is in a horizontal cylindrical shape, a horizontal processing surface is provided on the product positioning member, the product positioning member is pivotally connected to the frame, the product positioning member is connected to the rotary driving unit, and a material discharge container is provided on the side of the product positioning member.

[0005] According to the above technical solution, the product is positioned on the horizontal processing surface, the cam drive mechanism drives the drive rod to descend, drives the lifting platform to descend, and the die-cutting knife cuts the product. After that, the rotary drive unit drives the product positioning member to rotate toward the side of the feeding container, and pours the product into the feeding container. After that, the product positioning member is reset, and the die-cutting of the next product is carried out.

[0006] The utility model can conveniently unload the die-cut products.

[0007] The cam driving mechanism includes a main shaft pivoted on the frame, a transmission belt mechanism connecting the main shaft and the motor, and a cam installed on the main shaft. The frame and the motor are installed on the workbench, and the top of the driving rod is against the cam. The main shaft rotates, and the cam rotates synchronously, driving the driving rod to drive the lifting platform to descend, and the die cutting knife descends to die-cut the product on the product positioning piece.

[0008] A balance wheel is installed on the main shaft, and the convex part of the balance wheel is in the opposite direction to the convex part of the cam. Since the center of gravity of the cam is offset from the center of the main shaft, during the rotation of the main shaft and the cam, the cam has a tendency to be centrifugal, which may cause the main shaft to bend. The centrifugal direction of the balance wheel is opposite to that of the cam, which can prevent the main shaft from bending.

[0009] The frame is provided with a guide plate, the guide plate is provided with a first guide hole, the first guide hole is matched with a first guide rod, the first guide rod is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the bottom end of the driving rod. The guide plate is provided with a guide hole for guiding the driving rod. The first guide rod is provided with a reset spring, which can reset the driving rod upward and enable the top end of the driving rod to abut against the cam.

[0010] The frame is provided with a guide ear, the guide ear is provided with a second guide hole, the second guide hole is matched with a second guide rod, the second guide rod is fixedly connected to the lifting platform, the top of the second guide rod is provided with a limit edge, the second guide rod is sleeved with a first spring, and the first spring is located between the limit edge and the guide ear. The bottom of the driving rod acts on the lifting platform, the lifting platform descends, and the first spring is compressed. The driving rod is reset, and the lifting platform is reset under the action of the first spring.

[0011] The side wall of the lifting platform is provided with an extension plate, the extension plate is provided with a third guide hole, the third guide hole is matched with a third guide rod, the third guide rod is fixedly connected to the pressing plate, the top of the third guide rod is provided with a limiting structure, the third guide rod is sleeved with a second spring, the second spring is located between the pressing plate and the extension plate, and the pressing plate is provided with an arc surface opposite to the product positioning member. When the lifting platform descends, the arc surface of the pressing plate first presses the product on the product positioning member, and the lifting platform continues to descend, and the die-cutting knife cuts the product.

[0012] A pair of conveying rollers are provided on the left side of the product positioning member, a guide roller is provided on the right side of the product positioning member, and a waste collection box is provided below the guide roller. Driven by the conveying rollers and guided by a number of guide rollers, the electrode sheet blank moves forward. The electrode sheet blank is at the lower left side of the product positioning member, and is wound upward around the product positioning member. After passing through the horizontal processing surface, it is guided to the waste collection box by the guide wheel. When the electrode sheet blank passes through the horizontal processing surface, the die cutter descends to cut it, and the finished electrode sheet is separated from the electrode sheet blank, and the electrode sheet blank becomes waste and is recycled into the waste collection box. The finished electrode sheet remaining on the horizontal processing surface falls into the unloading container along with the rotating product positioning member. Since the product positioning member is cylindrical, its rotation unloading and rotation reset will not affect the conveying of the electrode sheet blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the electrode sheet die-cutting mechanism;

[0015] Figure 2 for Figure 1 Left view of

[0016] Figure 3 for Figure 1 Middle AA section view;

[0017] Figure 4 for Figure 3 Schematic diagram of the product positioning member 40 rotating and tilting the electrode sheet 90.

[0018] Explanation of symbols in the figure:

[0019] 10. driving rod; 11. guide plate; 12. first guide rod; 13. connecting plate; 14. return spring;

[0020] 20. Lifting platform; 21. Die cutter; 22. Guide ear; 23. Second guide rod; 231. Limiting edge; 24. First spring; 25. Extension plate; 26. Third guide rod; 27. Pressing plate; 271. Arc surface; 28. Second spring;

[0021] 30. Product positioning part; 31. Horizontal processing surface; 32. Rotary drive unit; 33. Unloading container; 34. Conveying roller; 35. Guide roller; 36. Waste collection box;

[0022] 40. Frame; 41. Workbench;

[0023] 50. spindle; 51. motor; 52. transmission belt mechanism; 53. cam; 54. balance wheel;

[0024] 90. Electrode sheet. DETAILED DESCRIPTION

[0025] like Figure 1 The electrode sheet die-cutting mechanism includes a cam driving mechanism, a driving rod 10 connected to the cam driving mechanism, a lifting platform 20 driven by the driving rod, a die-cutting knife 21 arranged at the bottom of the lifting platform, and a product positioning member 30 located below the die-cutting knife. The product positioning member is in a horizontal cylindrical shape, and a horizontal processing surface 31 is provided on the product positioning member. The product positioning member is pivotally connected to a frame 40, and the product positioning member is connected to a rotating driving unit 32. A material discharge container 33 is provided on the side of the product positioning member.

[0026] The product is positioned on the horizontal processing surface 31, and the cam drive mechanism drives the drive rod 10 to descend, drives the lifting platform 20 to descend, and the die cutter 21 cuts the product. After that, the rotary drive unit 32 drives the product positioning member 30 to rotate toward the side of the feed container 33, and pours the product into the feed container. After that, the product positioning member 30 is reset, and the die cutting of the next product is carried out. The rotary drive unit 32 adopts a rotary cylinder or a motor.

[0027] The cam driving mechanism includes a main shaft 50 pivotally connected to the frame 40, a transmission belt mechanism 52 connecting the main shaft and the motor 51, and a cam 53 installed on the main shaft. The frame and the motor are installed on the workbench 41, and the top of the driving rod 10 is against the cam. The main shaft 50 rotates, and the cam 53 rotates synchronously, driving the driving rod 10 to drive the lifting platform 20 to descend, and the die cutting knife 21 to descend, cutting the product on the product positioning member 30.

[0028] A balancing wheel 54 is mounted on the main shaft 50, and the convex part of the balancing wheel is in the opposite direction to the convex part of the cam 53. The eccentric direction of the balancing wheel 54 is opposite to that of the cam 53, which can prevent the main shaft 50 from bending.

[0029] The frame 40 is provided with a guide plate 11, which has a first guide hole, in which a first guide rod 12 is fitted, the first guide rod is fixedly connected to a connecting plate 13, and the connecting plate is fixedly connected to the bottom end of the driving rod 10. The guide plate 11 is provided with a guide hole for guiding the driving rod 10. The first guide rod 12 is provided with a reset spring 14, which can reset the driving rod 10 upward and enable the top end of the driving rod to abut against the cam 53.

[0030] The frame 40 is provided with a guide ear 22, the guide ear is provided with a second guide hole, the second guide hole is matched with a second guide rod 23, the second guide rod is fixedly connected to the lifting platform 20, the top of the second guide rod is provided with a limit edge 231, the second guide rod is sleeved with a first spring 24, and the first spring is located between the limit edge and the guide ear 22. The bottom of the driving rod 10 acts on the lifting platform 20, the lifting platform descends, and the first spring 24 is compressed. The driving rod 10 is reset, and the lifting platform 20 is reset under the action of the first spring 24.

[0031] The side wall of the lifting platform 20 is provided with an extension plate 25, and a third guide hole is provided on the extension plate. A third guide rod 26 is matched in the third guide hole. The third guide rod is fixedly connected to the pressing plate 27. A limiting structure is provided on the top of the third guide rod. A second spring 28 is sleeved on the third guide rod. The second spring is located between the pressing plate and the extension plate 25. The pressing plate is provided with an arc surface 271 opposite to the product positioning member. When the lifting platform 20 descends, the arc surface of the pressing plate 27 first presses the product on the product positioning member 30. The lifting platform 20 continues to descend, and the die cutter 21 cuts the product. Cutting the product while the pressing plate 27 presses it can improve the accuracy of cutting the product.

[0032] like Figure 3A pair of conveying rollers 34 are provided on the left side of the product positioning member 30, which are driven by a motor. A guide roller 35 is provided on the right side of the product positioning member, and a waste collection box 36 is provided below the guide roller. The conveying roller 34 and the guide roller 35 are installed on the vertical plate. The electrode sheet blank is at the lower left side of the product positioning member 30, and is wound upward on the product positioning member 30. After passing through the horizontal processing surface 31, it is guided to the waste collection box 36 by the guide wheel. When the electrode sheet blank passes through the horizontal processing surface 31, the die cutter 21 descends to cut it, and the finished electrode sheet is separated from the electrode sheet blank, and the electrode sheet blank becomes waste and is recycled into the waste collection box 36. The finished electrode sheet remaining on the horizontal processing surface 31 falls into the unloading container 33 along with the rotating product positioning member 30. Since the product positioning member is cylindrical, its rotation unloading and rotation reset will not affect the conveying of the electrode sheet blank.

[0033] The above contents are only preferred implementation modes of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation mode and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An electrode sheet die-cutting mechanism, comprising a cam drive mechanism, a drive rod (10) connected to the cam drive mechanism, a lifting platform (20) driven by the drive rod, a die-cutting knife (21) arranged at the bottom of the lifting platform, and a product positioning member (30) located below the die-cutting knife, characterized in that: The product positioning member is in a horizontal cylindrical shape and is provided with a horizontal processing surface (31). The product positioning member is pivotally connected to the frame (40). The product positioning member is connected to the rotary drive unit (32). A material discharge container (33) is provided beside the product positioning member.

2. The electrode sheet die-cutting mechanism according to claim 1, characterized in that: The cam driving mechanism comprises a main shaft (50) pivotally connected to a frame (40), a transmission belt mechanism (52) connecting the main shaft and a motor (51), and a cam (53) mounted on the main shaft. The frame and the motor are mounted on a workbench (41), and the top of the driving rod (10) abuts against the cam.

3. The electrode sheet die-cutting mechanism according to claim 2, characterized in that: A balance wheel (54) is mounted on the main shaft (50), and the convex portion of the balance wheel is in the opposite direction to the convex portion of the cam (53).

4. The electrode sheet die-cutting mechanism according to claim 1, characterized in that: A guide plate (11) is provided on the frame (40), the guide plate is provided with a first guide hole, a first guide rod (12) is fitted in the first guide hole, the first guide rod is fixedly connected to a connecting plate (13), and the connecting plate is fixedly connected to the bottom end of the driving rod (10).

5. The electrode sheet die-cutting mechanism according to claim 1, characterized in that: A guide ear (22) is provided on the frame (40), a second guide hole is provided in the guide ear, a second guide rod (23) is matched in the second guide hole, the second guide rod is fixedly connected to the lifting platform (20), a limiting edge (231) is provided on the top of the second guide rod, a first spring (24) is sleeved on the second guide rod, and the first spring is located between the limiting edge and the guide ear (22).

6. The electrode sheet die-cutting mechanism according to claim 1, characterized in that: The side wall of the lifting platform (20) is provided with an extension plate (25), the extension plate is provided with a third guide hole, the third guide hole is matched with a third guide rod (26), the third guide rod is fixedly connected to the pressure plate (27), the top of the third guide rod is provided with a limiting structure, the third guide rod is sleeved with a second spring (28), the second spring is located between the pressure plate and the extension plate (25), and the pressure plate is provided with an arc surface (271) opposite to the product positioning member.

7. The electrode sheet die-cutting mechanism according to claim 1, characterized in that: A pair of conveying rollers (34) are arranged on the left side of the product positioning member (30), a guide roller (35) is arranged on the right side of the product positioning member, and a waste collection box (36) is arranged below the guide roller.

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