Compression roller counterweight structure and unwinding device of pole piece slitting machine
By introducing an adjustable pressure roller counterweight structure into the electrode slitting machine, the pressure roller can be precisely adjusted using the counterweight scale area and scale groove. This solves the problem of inaccurate unwinding pressure adjustment in the existing technology, improves the tension stability of the electrode roll, and avoids the loosening or breakage of the electrode.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-06
AI Technical Summary
The unwinding device of the existing electrode slitting machine is difficult to ensure accuracy and flexibility when adjusting the unwinding pressure, which makes the electrode roll material easy to loosen or break during the unwinding process.
A pressure roller counterweight structure was designed, including a counterweight support and an adjustable counterweight block. The pressure roller can be precisely adjusted through the counterweight scale area and scale groove to ensure that the pressure roller provides appropriate pressure to the outer ring of the electrode coil.
This improves the accuracy and flexibility of production personnel in adjusting the unwinding pressure, avoids the loosening or breakage of the electrode sheet during the unwinding process, and ensures tension stability.
Smart Images
Figure CN223973541U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slitting machine technology, and in particular to a pressure roller counterweight structure and an unwinding device for an electrode sheet slitting machine. Background Technology
[0002] In the production process of lithium-ion battery electrodes, the coated electrodes need to be cut into strips of the required width, and the strips are unwound or wound up by the unwinding or winding device of the electrode slitting machine. Unwinding refers to unfolding the electrode roll through the unwinding device, while winding refers to rewinding the cut electrode strips through the winding device.
[0003] In existing unwinding devices, pressure rollers are used to press down on the outer ring of the electrode coil during the unwinding process. Counterweights are added to a counterweight frame that fixes the pressure rollers, applying appropriate pressure to the electrode coil to ensure tension during unwinding and prevent excessive slack. However, existing unwinding devices typically require production personnel to rely on their experience and adjust the unwinding pressure based on factors such as the required unwinding pressure for different remaining thickness ranges of the electrode coil after unwinding. This manual adjustment method makes it difficult to guarantee the accuracy of the unwinding pressure adjustment and also limits the flexibility of the personnel, thus failing to ensure the tension of the electrode coil during unwinding and easily causing slack or breakage of the electrode. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pressure roller counterweight structure and electrode slitting machine unwinding device that can better ensure the accuracy of production personnel in adjusting the unwinding pressure and improve the flexibility of adjusting the unwinding pressure.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] A pressure roller counterweight structure includes:
[0007] The frame rollers are fixedly connected at both ends to the body of the electrode slitting machine;
[0008] The counterweight assembly includes a counterweight bracket, a counterweight block, and a pressure roller; the first end of the counterweight bracket is rotatably connected to the frame roller, and the pressure roller is rotatably mounted on the second end of the counterweight bracket; the counterweight bracket is inclinedly disposed between the frame roller and the electrode roll, so that the pressure roller abuts against the outer ring of the electrode roll.
[0009] The counterweight support is provided with a counterweight scale area, which extends from the first end of the counterweight support to the second end of the counterweight support. The counterweight block is adjustablely set in the counterweight scale area, so that the position of the counterweight block connected to the counterweight scale area is adjustable.
[0010] In one embodiment, the counterweight is detachably connected to the counterweight support.
[0011] In one embodiment, the counterweight scale area has multiple scale grooves, the counterweight block has an installation slot, and a positioning rib is protruding in the installation slot. The positioning rib is located in the corresponding scale groove, so that the installation slot covers the counterweight bracket.
[0012] In one embodiment, the counterweight is formed with opposing gripping slots; and / or,
[0013] The counterweight is a one-piece molded structure.
[0014] In one embodiment, one end of the counterweight support is formed with an annular rotating part, and the inner ring of the annular rotating part is rotatably sleeved on the outer peripheral wall of the frame roller.
[0015] The counterweight assembly also includes a fastening screw, which is located on the annular rotating part and is used to fix and lock the annular rotating part to the frame roller.
[0016] In one embodiment, the fastening screw is a Torx screw.
[0017] An electrode slitting machine unwinding device includes a rotating unwinding shaft and a pressure roller counterweight structure as described in any of the above embodiments; the two ends of the rotating unwinding shaft are respectively connected to the machine body of the electrode slitting machine, and the electrode roll is sleeved on the outer peripheral wall of the rotating unwinding shaft.
[0018] In one embodiment, the rotating unwinding shaft is an inflatable shaft.
[0019] In one embodiment, the electrode slitting machine unwinding device further includes multiple electrode rollers, each of which is rotatably connected to the machine body at both ends, and the multiple electrode rollers are used to transport and traction electrodes.
[0020] Compared with the prior art, the present invention has at least the following advantages:
[0021] Production personnel can observe the counterweight scale area and add counterweights to it according to the required unwinding pressure. They can also adjust the position of the counterweights in the scale area based on the different unwinding pressures corresponding to different remaining thicknesses of the electrode roll after unwinding. This provides varying pressure on the outer ring of the electrode roll, ensuring tension during unwinding and effectively preventing loosening or breakage of the electrode. The counterweight structure of this invention ensures greater accuracy and flexibility in adjusting the unwinding pressure. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the counterweight structure of the pressure roller in one embodiment;
[0024] Figure 2 for Figure 1 An exploded view of the pressure roller counterweight structure shown.
[0025] Figure 3 for Figure 1 The diagram shows the structural schematic of the pressure roller counterweight structure.
[0026] Reference numerals: 10 for pressure roller counterweight structure; 100 for support roller; 200 for machine body; 300 for counterweight assembly; 310 for counterweight bracket; 3101 for counterweight scale area; 3102 for scale groove; 320 for counterweight block; 3110 for annular rotating part; 3201 for mounting groove; 3210 for positioning rib; 3202 for holding groove; 330 for pressure roller; 340 for fastening screw; 500 for rotating unwinding shaft; 600 for electrode sheet passing roller; 400 for electrode sheet roll. Detailed Implementation
[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] This disclosure provides a pressure roller counterweight structure, including a frame roller and a counterweight assembly. Both ends of the frame roller are connected to the body of an electrode slitting machine. The counterweight assembly includes a counterweight bracket, a counterweight block, and a pressure roller. A first end of the counterweight bracket is rotatably connected to the frame roller, and the pressure roller is rotatably mounted on a second end of the counterweight bracket. The counterweight bracket is inclined between the frame roller and the electrode roll, so that the pressure roller abuts against the outer ring of the electrode roll. The counterweight bracket has a counterweight scale area extending from the first end to the second end of the counterweight bracket. The counterweight block is adjustablely positioned within the counterweight scale area, making its connection to the counterweight scale area adjustable.
[0031] Please see Figures 1 to 3 To better understand the pressure roller counterweight structure 10 of this application, the following further explanation of the pressure roller counterweight structure 10 is provided:
[0032] One embodiment of the pressure roller counterweight structure 10 includes a frame roller 100 and a counterweight assembly 300. The two ends of the roller 100 are fixedly connected to the body 200 of the electrode slitting machine; the counterweight assembly 300 includes a counterweight bracket 310, a counterweight block 320, and a pressure roller 330; the first end of the counterweight bracket 310 is rotatably connected to the roller 100, and the pressure roller 330 is rotatably mounted on the second end of the counterweight bracket 310; the counterweight bracket 310 is inclinedly arranged between the roller 100 and the electrode roll 400, so that the pressure roller 330 abuts against the outer ring of the electrode roll 400; wherein, the counterweight bracket 310 is provided with a counterweight scale area 3101, the counterweight scale area 3101 extends from the first end of the counterweight bracket 310 to the second end of the counterweight bracket 310, and the counterweight block 320 is adjustablely arranged in the counterweight scale area 3101, so that the position of the counterweight block connected to the counterweight scale area 3101 is adjustable.
[0033] In this embodiment, the scale value of the counterweight scale area 3101 is the weight scale value, and the scale value of the counterweight scale area 3101 increases from the first end to the second end. Production personnel can observe the counterweight scale area 3101 and add counterweight blocks 320 to the counterweight scale area 3101 according to the required unwinding pressure. Simultaneously, they can adjust the position of the counterweight blocks 320 in the counterweight scale area 3101 according to the unwinding pressure corresponding to different remaining thickness ranges of the electrode roll 400 after unwinding. This provides different pressures for the pressure roller 330 to press down on the outer ring of the electrode roll 400, thereby ensuring the tension of the electrode roll 400 during the unwinding process and effectively preventing the electrode from loosening or breaking. The pressure roller counterweight structure 10 of this utility model can better ensure the accuracy of production personnel adjusting the unwinding pressure and improve the flexibility of adjusting the unwinding pressure.
[0034] like Figure 1 and Figure 2 As shown, in one embodiment, the counterweight 320 is detachably connected to the counterweight bracket 310. In one embodiment, the counterweight scale area 3101 has multiple scale grooves 3102, the counterweight 320 has an installation slot 3201, and a positioning rib 3210 protrudes from the installation slot 3201. The positioning rib 3210 is disposed in the corresponding scale groove 3102, so that the installation slot 3201 covers the counterweight bracket 310, and the multiple scale grooves 3102 are set one-to-one with the multiple weight scale values.
[0035] It is understood that by setting the positioning ribs 3210 of the counterweight 320 in the corresponding scale grooves 3102, the mounting slots 3201 will cover the outer wall of the counterweight bracket 310, thereby achieving a detachable connection between the counterweight 320 and the counterweight bracket 310. Specifically, in this embodiment, the counterweight 320 is snapped onto the counterweight bracket 310, which facilitates the disassembly and secondary relocation and installation of the counterweight 320. That is, production personnel can observe the weight scale value on the counterweight scale area 3101 according to the unwinding pressure corresponding to the different remaining thickness ranges of the electrode roll 400, so as to move the counterweight 320 to the corresponding scale groove 3102, thereby satisfying the pressure of the pressure roller 330 pressing down on the outer ring of the electrode roll 400, and thus ensuring the tension of the electrode roll 400 during the unwinding process, effectively avoiding the loosening or breakage of the electrode.
[0036] It should be noted that in this embodiment, the multiple weight scale values of the counterweight scale area 3101, such as 10KG, 8KG, 6KG, 4KG and 2KG, are only for illustrative purposes. That is, the weight scale values gradually decrease from the second end of the counterweight bracket 310 to the first end of the counterweight bracket 310. This means that when the counterweight block 320 is engaged at the second end of the counterweight bracket 310 and aligned with the 10KG weight scale value, the pressure of the pressure roller 330 pressing down on the outer ring of the electrode roll 400 is the greatest. Conversely, when the counterweight block 320 is engaged at the first end of the counterweight bracket 310 and aligned with the 2KG weight scale value, the pressure of the pressure roller 330 pressing down on the outer ring of the electrode roll 400 is the least. Therefore, production personnel can adjust the weight block 320 by gradually moving it from the second end of the weight bracket 310 to the first end of the weight bracket 310, based on the unwinding pressure corresponding to the different remaining thickness ranges of the electrode roll 400, while simultaneously observing the weight scale values on the weight scale area 3101. This reduces the pressure of the pressure roller 330 pressing down on the outer ring of the electrode roll 400, preventing the electrode from being subjected to excessive pressure and breaking. In other embodiments, the multiple weight scale values of the weight scale area 3101 are not limited to the weight scale values exemplified above, and those skilled in the art can make other selections as needed.
[0037] like Figure 2 As shown, in one embodiment, the counterweight 320 has opposing gripping slots 3202. In another embodiment, the counterweight 320 is a one-piece molded structure. This facilitates the handling of the counterweight 320 by production personnel.
[0038] like Figure 1 and Figure 3 As shown, in one embodiment, one end of the counterweight bracket 310 is formed with an annular rotating part 3110, the inner ring of the annular rotating part 3110 being rotatably sleeved on the outer peripheral wall of the roller 100; the counterweight assembly 300 also includes a fastening screw 340, the fastening screw 340 being disposed on the annular rotating part 3110, the fastening screw 340 being used to fix and lock the annular rotating part 3110 to the roller 100.
[0039] It is understood that in this embodiment, the tightness of the annular rotating part 3110 on the frame roller 100 can be adjusted by the fastening screw 340 to improve the structural stability of the counterweight support 310 during the unwinding process, so that the pressure roller 330 continuously abuts against the outer ring of the electrode roll 400; specifically, in this embodiment, as the electrode roll 400 is continuously unwound, the pressure roller 330 will continuously roll and abut against the outer ring of the electrode roll 400.
[0040] like Figure 3As shown, in one embodiment, the fastening screw 340 is a Torx screw. This allows production personnel to directly tighten or loosen the Torx screw manually without the need for additional tools such as wrenches, thereby effectively improving the efficiency of adjusting the annular rotating part 3110.
[0041] This application also provides an unwinding device for an electrode slitting machine, including a rotating unwinding shaft 500 and a pressure roller counterweight structure 10 as described in any of the above embodiments. The two ends of the rotating unwinding shaft 500 are respectively rotatably connected to the body 200 of the electrode slitting machine, and the electrode roll 400 is sleeved on the outer peripheral wall of the rotating unwinding shaft 500.
[0042] In this embodiment, production personnel can observe the counterweight scale area 3101 and add counterweight blocks 320 to the counterweight scale area 3101 according to the required unwinding pressure. Simultaneously, based on the unwinding pressure corresponding to different remaining thickness ranges of the electrode roll 400 after unwinding, the position of the counterweight blocks 320 at different weight scale values in the counterweight scale area 3101 can be adjusted. This provides different pressures for the pressure roller 330 to press down on the outer ring of the electrode roll 400, thereby ensuring the tension of the electrode roll 400 during the unwinding process and effectively preventing the electrode from loosening or breaking. The electrode slitting machine unwinding device of this utility model can better ensure the accuracy of production personnel adjusting the unwinding pressure and improve the flexibility of adjusting the unwinding pressure.
[0043] like Figure 3 As shown, in one embodiment, the rotating unwinding shaft 500 is an inflatable shaft. Thus, the fixing and releasing of the electrode roll 400 core can be achieved through inflation and deflation, which is simple, reliable, and has better practicality. Specifically, the expansion of the air bladder on the inflatable shaft, combined with the pressure of the pressure roller 330 pressing down on the outer ring of the electrode roll 400, ensures the tension of the electrode roll 400 during the unwinding process.
[0044] It should be noted that the air shaft is existing technology and will not be described in detail here.
[0045] like Figure 3 As shown, in one embodiment, the electrode slitting machine unwinding device further includes a plurality of electrode rollers 600, each of which is connected at both ends to the machine body 200, and the plurality of electrode rollers 600 are used to transport and traction electrodes.
[0046] It is understandable that during the unwinding process of the electrode roll 400, multiple electrode rollers 600 are needed to transport and traction the electrode to complete the unfolding of the electrode.
[0047] Compared with the prior art, the present invention has at least the following advantages:
[0048] Production personnel can observe the counterweight scale area and add counterweights to it according to the required unwinding pressure. They can also adjust the position of the counterweights in the scale area based on the different unwinding pressures corresponding to different remaining thicknesses of the electrode roll after unwinding. This provides varying pressure on the outer ring of the electrode roll, ensuring tension during unwinding and effectively preventing loosening or breakage of the electrode. The counterweight structure of this invention ensures greater accuracy and flexibility in adjusting the unwinding pressure.
[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A press roll counterweight structure, characterized by, The utility model relates to a kind of polar plate slitting machine roll-off device, including: Frame roller, both ends of the frame roller are fixedly connected to the body of polar plate slitting machine respectively; Counterweight assembly, including counterweight support, counterweight and compression roller;The first end of the counterweight support is rotatably connected to the frame roller, and the compression roller is rotatably installed at the second end of the counterweight support, and the counterweight support is obliquely arranged between the frame roller and the polar plate coiled material, so that the compression roller is abutted on the outer ring of the polar plate coiled material; Wherein, the counterweight support is provided with counterweight scale area, and the counterweight scale area extends from the first end of the counterweight support to the second end of the counterweight support, and the counterweight is adjustably arranged in the counterweight scale area, so that the position of the counterweight connected to the counterweight scale area is adjustable.
2. The press roll weight structure of claim 1, wherein, The counterweight and the counterweight support are detachably connected.
3. The press roll weight structure of claim 1 wherein, The counterweight scale area is provided with a plurality of scale grooves, the counterweight is provided with a mounting notch, a positioning protruding rib is protruded in the mounting notch, and the positioning protruding rib is arranged in the corresponding scale groove, so that the mounting notch is covered in the counterweight support.
4. The press roll weight structure of claim 1 wherein, The counterweight is formed with oppositely arranged holding notches;And / or, The counterweight is an integral structure.
5. The press roll weight structure of claim 1 wherein, One end of the counterweight support is formed with an annular rotating part, and the inner ring of the annular rotating part is rotatably sleeved on the outer peripheral wall of the frame roller. The counterweight assembly further includes a fastening screw, and the fastening screw is arranged in the annular rotating part, and the fastening screw is used to fixedly lock the annular rotating part on the frame roller.
6. The press roll weight structure of claim 5 wherein, The fastening screw is a torx screw.
7. A slitting machine unwinding device for electrode segments, characterized in that, The utility model relates to a kind of polar plate slitting machine roll-off device, including:
8. The pole piece slitting machine unwinding device of claim 7, wherein, Frame roller, both ends of the frame roller are fixedly connected to the body of polar plate slitting machine respectively; 9. The pole piece slitting machine pay-off device of claim 7, wherein, Counterweight assembly, including counterweight support, counterweight and compression roller;The first end of the counterweight support is rotatably connected to the frame roller, and the compression roller is rotatably installed at the second end of the counterweight support, and the counterweight support is obliquely arranged between the frame roller and the polar plate coiled material, so that the compression roller is abutted on the outer ring of the polar plate coiled material; Wherein, the counterweight support is provided with counterweight scale area, and the counterweight scale area extends from the first end of the counterweight support to the second end of the counterweight support, and the counterweight is adjustably arranged in the counterweight scale area, so that the position of the counterweight connected to the counterweight scale area is adjustable. The counterweight and the counterweight support are detachably connected. The counterweight scale area is provided with a plurality of scale grooves, the counterweight is provided with a mounting notch, a positioning protruding rib is protruded in the mounting notch, and the positioning protruding rib is arranged in the corresponding scale groove, so that the mounting notch is covered in the counterweight support. The counterweight is formed with oppositely arranged holding notches;And / or, The counterweight is an integral structure. One end of the counterweight support is formed with an annular rotating part, and the inner ring of the annular rotating part is rotatably sleeved on the outer peripheral wall of the frame roller. The counterweight assembly further includes a fastening screw, and the fastening screw is arranged in the annular rotating part, and the fastening screw is used to fixedly lock the annular rotating part on the frame roller. The fastening screw is a torx screw. The utility model relates to a kind of polar plate slitting machine roll-off device, including: Frame roller, both ends of the frame roller are fixedly connected to the body of polar plate slitting machine respectively; Counterweight assembly, including counterweight support, counterweight and compression roller;The first end of the counterweight support is rotatably connected to the frame roller, and the compression roller is rotatably installed at the second end of the counterweight support, and the counterweight support is obliquely arranged between the frame roller and the polar plate coiled material, so that the compression roller is abutted on the outer ring of the polar plate coiled material; Wherein, the counterweight support is provided with counterweight scale area, and the counterweight scale area extends from the first end of the counterweight support to the second end of the counterweight support, and the counterweight is adjustably arranged in the counterweight scale area, so that the position of the counterweight connected to the counterweight scale area is adjustable. The counterweight and the counterweight support are detachably connected. The counterweight scale area is provided with a plurality of scale grooves, the counterweight is provided with a mounting notch, a positioning protruding rib is protruded in the mounting notch, and the positioning protruding rib is arranged in the corresponding scale groove, so that the mounting notch is covered in the counterweight support. The counterweight is formed with oppositely arranged holding notches;And / or, The counterweight is an integral structure. One end of the counterweight support is formed with an annular rotating part, and the inner ring of the annular rotating part is rotatably sleeved on the outer peripheral wall of the frame roller. The counterweight assembly further includes a fastening screw, and the fastening screw is arranged in the annular rotating part, and the fastening screw is used to fixedly lock the annular rotating part on the frame roller. The fastening screw is a torx screw. The utility model relates to a kind of polar plate slitting machine roll-off device, including: Frame roller, both ends of the frame roller are fixedly connected to the body of polar plate slitting machine respectively; Counterweight assembly, including counterweight support, counterweight and compression roller;The first end of the counterweight support is rotatably connected to the frame roller, and the compression roller is rotatably installed at the second end of the counterweight support, and the counterweight support is obliquely arranged between the frame roller and the polar plate coiled material, so that the compression roller is abutted on the outer ring of the polar plate coiled material; Wherein, the counterweight support is provided with counterweight scale area, and the counterweight scale area extends from the first end of the counterweight support to the second end of the counterweight support, and the counterweight is adjustably arranged in the counterweight scale area, so that the position of the counterweight connected to the counterweight scale area is adjustable. The counterweight and the counterweight support are detachably connected. The counterweight scale area is provided with a plurality of scale grooves, the counterweight is provided with a mounting notch, a positioning protruding rib is protruded in the mounting notch, and the positioning protruding rib is arranged in the corresponding scale groove, so that the mounting notch is covered in the counterweight support. The counterweight is formed with oppositely arranged holding notches;And / or, The counterweight is an integral structure. One end of the counterweight support is formed with an annular rotating part, and the inner ring of the annular rotating part is rotatably sleeved on the outer peripheral wall of the frame roller. The counterweight assembly further includes a fastening screw, and the fastening screw is arranged in the annular rotating part, and the fastening screw is used to fixedly lock the annular rotating part on the frame roller. The fastening screw is a torx screw.