Slitting knife detection device, slitting machine and pole piece production system

Abstract

The utility model provides a slitting knife detection device, a slitting machine and a pole piece production system. A cutting edge of the slitting knife extends into a light curtain of the cross type light curtain detection assembly. Due to the fact that the cross type light curtain detection assembly is installed at the cutting edge of the slitting knife, a state image at the cutting edge can be displayed on a computer in real time, if the cutting edge is not abraded or nick-free, the image forms a linear character on the computer, and if the cutting edge is abraded or nick-free, the image forms regular linear jumping on the computer. Therefore, the state of the upper slitting knife can be checked only by observing computer images.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery pole piece production, and particularly relates to a slitting knife detection device, a slitting machine and a pole piece production system. Background Art

[0002] In the process of lithium battery pole piece production, the slitting process is to slit the positive and negative pole pieces through slitting equipment to obtain the required pole piece width. To ensure product quality and reduce the short circuit of the positive and negative poles caused by burrs exceeding the specification and piercing the pole piece, the burrs on the slitting edge of the pole piece are detected before each shift, batch change, and tool change to ensure that defects such as burrs on the pole piece are within the specified specifications during the production process.

[0003] Since the slitting knife notch caused by large particles, tool edge wear and other factors during the slitting process cannot be monitored during the production process when the pole piece quality exceeds the specification, and it can only be found whether the product quality is qualified through spot checks and routine inspections during shift changes. The detection methods in the related art are all completed by placing the slit pole piece on a static metallurgical microscope, which takes a long time and has low efficiency.

[0004] How to detect the slitting knife in real time during the pole piece slitting process is an urgent problem to be solved at present. Content of the Utility Model

[0005] The purpose of the utility model is to provide a slitting knife detection device, a slitting machine and a pole piece production system.

[0006] To solve the above technical problems, the utility model provides a slitting knife detection device, including;

[0007] A slitting knife and a cross-type light curtain detection component;

[0008] The cutting edge of the slitting knife extends into the light curtain of the cross-type light curtain detection component.

[0009] Further, the cross-type light curtain detection component includes a first-direction light curtain sensor and a second-direction light curtain sensor;

[0010] The horizontal projection of the light curtain of the first-direction light curtain sensor intersects with the horizontal projection of the light curtain of the second-direction light curtain sensor.

[0011] Further, the first-direction light curtain sensor includes: a first transmitting end and a first receiving end;

[0012] The first transmitting end and the first receiving end are oppositely arranged;

[0013] The first transmitting end and the first receiving end are respectively arranged on the left and right sides of the cutting edge of the cutting knife, and the cutting edge of the cutting knife is arranged between the first transmitting end and the first receiving end.

[0014] Further, the second-direction light curtain sensor includes: a second transmitting end and a second receiving end;

[0015] The second transmitting end and the second receiving end are arranged opposite to each other;

[0016] The second transmitting end and the second receiving end are respectively arranged at the front and rear ends of the cutting edge of the cutting knife, and the cutting edge of the cutting knife is arranged between the second transmitting end and the second receiving end.

[0017] Further, the cross-type light curtain detection assembly further includes a controller and a display module;

[0018] The controller is electrically connected to the display module, the first-direction light curtain sensor, and the second-direction light curtain sensor respectively.

[0019] Further, an axial flexible limiting member is arranged on the side wall of the cutting knife.

[0020] The present utility model further provides a slitter, including:

[0021] A tool rest, an upper passing roller, a lower passing roller, and the cutting knife detection device as described above;

[0022] The upper passing roller and the lower passing roller are rotatably arranged on the tool rest, and the upper passing roller abuts against the lower passing roller;

[0023] The cutting knife is fixedly arranged on the upper passing roller, and the cutting edge of the cutting knife extends into the knife groove of the lower passing roller and meshes with the fixed knife in the knife groove.

[0024] Further, the upper passing roller includes an upper knife shaft, an axial flexible limiting member, a first shaft sleeve, and a second shaft sleeve;

[0025] Both the first shaft sleeve and the second shaft sleeve are sleeved on the upper knife shaft;

[0026] The cutting knife is sleeved on the upper knife shaft and is arranged between the first shaft sleeve and the second shaft sleeve;

[0027] The axial flexible limiting member is arranged between the cutting knife and the second shaft sleeve and is adapted to push the cutting knife axially to make the cutting knife closely adhere to the fixed knife.

[0028] Further, the lower passing roller includes a lower knife shaft, a third shaft sleeve, and a fourth shaft sleeve;

[0029] The third sleeve and the fourth sleeve are both sleeved on the lower cutter shaft.

[0030] The fixed knife sleeve is arranged on the lower knife shaft and is arranged between the third shaft sleeve and the fourth shaft sleeve;

[0031] The gap between the knife groove and the fourth sleeve is the knife groove.

[0032] The utility model also provides a pole piece production system, comprising:

[0033] The pole piece to be cut and the slitting machine as described above;

[0034] The electrode piece to be cut is transported between the upper roller and the lower roller of the slitting machine, and is cut by the slitting knife and the fixed knife.

[0035] The beneficial effect of the utility model is that the utility model provides a slitting knife detection device, a slitting machine and a pole piece production system, wherein the slitting knife detection device includes: a slitting knife and a cross-type light curtain detection component, and the blade edge of the slitting knife extends into the light curtain of the cross-type light curtain detection component. Since a cross-type light curtain detection component is installed at the blade edge of the slitting knife, the state image at the blade edge will be displayed on the computer in real time. If the blade edge is not worn or notched, the image on the computer will be linear. If the blade edge is worn or notched, the image on the computer will be a regular linear jump, so the state of the upper slitting knife can be checked by simply observing the computer image. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0037] Figure 1 It is a front view of the slitting knife detection device provided by the embodiment of the utility model.

[0038] Figure 2 It is a side view of the slitting knife detection device provided by the embodiment of the utility model.

[0039] Figure 3 It is a detection principle diagram of the slitting knife detection device provided in the embodiment of the utility model.

[0040] Figure 4 It is a structural schematic diagram of a slitting machine provided by an embodiment of the utility model.

[0041] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0042] In the figure: 100, slitting knife; 110, axial flexible limiter; 210, first direction light curtain sensor; 211, first transmitting end; 212, first receiving end; 220, second direction light curtain sensor; 221, second transmitting end; 222, second receiving end; 300, knife holder; 310, upper roller; 311, first sleeve; 312, second sleeve; 320, lower roller; 321, knife groove; 322, fixed knife; 323, third sleeve; 324, fourth sleeve. DETAILED DESCRIPTION

[0043] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0044] For examples, see Figures 1-5 At least one embodiment provides a slitting knife 100 detection device, including: a slitting knife 100 and a cross-type light curtain detection component. The blade edge of the slitting knife 100 extends into the light curtain of the cross-type light curtain detection component. Since the cross-type light curtain detection component is installed at the blade edge of the slitting knife 100, the state image at the blade edge will be displayed on the computer in real time. If the blade edge is not worn or notched, the image on the computer will be linear. If the blade edge is worn or notched, the image on the computer will be a regular linear jump. Therefore, the state of the upper slitting knife 100 can be checked by simply observing the computer image.

[0045] The cross-type light curtain detection assembly includes a first direction light curtain sensor 210 and a second direction light curtain sensor 220; the horizontal projection of the light curtain of the first direction light curtain sensor 210 and the horizontal projection of the light curtain of the second direction light curtain sensor 220 are arranged crosswise. By detecting the degree of light shielding in different directions of the blade edge, it is comprehensively judged whether the blade edge is worn or notched, and the detection is more accurate.

[0046] It should be noted that the first directional light curtain sensor 210 includes: a first transmitting end 211 and a first receiving end 212; the first transmitting end 211 and the first receiving end 212 are arranged opposite to each other; the first transmitting end 211 and the first receiving end 212 are respectively arranged on the left and right sides of the blade edge of the slitting knife 100, and the blade edge of the slitting knife 100 is arranged between the first transmitting end 211 and the first receiving end 212. The second directional light curtain sensor 220 includes: a second transmitting end 221 and a second receiving end 222; the second transmitting end 221 and the second receiving end 222 are arranged opposite to each other; the second transmitting end 221 and the second receiving end 222 are respectively arranged on the front and rear ends of the blade edge of the slitting knife 100, and the blade edge of the slitting knife 100 is arranged between the second transmitting end 221 and the second receiving end 222.

[0047] In some embodiments, the cross-type light curtain detection assembly further includes a controller and a display module; the controller is electrically connected to the display module, the first direction light curtain sensor 210, and the second direction light curtain sensor 220. The light curtain is displayed through the display module. If the blade edge is not worn or notched, the image on the computer is linear. If the blade edge is worn or notched, the image on the display module is a regular linear jump. Therefore, the state of the upper slitting knife 100 can be checked by simply observing the image on the display module.

[0048] In some embodiments, in order to prevent the slitting knife 100 from shaking, thereby causing inaccurate detection results, the side wall of the slitting knife 100 is provided with an axial flexible stopper 110. The slitting knife 100 is fixed by the axial flexible stopper 110 to prevent the slitting knife 100 from shaking.

[0049] At least one embodiment further provides a slitting machine, comprising: a knife holder 300, an upper roller 310, a lower roller 320, and a slitting knife 100 detection device as described above; the upper roller 310 and the lower roller 320 are rotatably arranged on the knife holder 300, and the upper roller 310 abuts against the lower roller 320; the slitting knife 100 is fixedly arranged on the upper roller 310, and the blade of the slitting knife 100 extends into the knife groove 321 of the lower roller 320 and meshes with the fixed knife 322 in the knife groove 321. Since a cross-type light curtain detection component is installed at the blade edge of the slitting knife 100, the state image at the blade edge will be displayed on the computer in real time. If the blade edge is not worn or notched, the image on the computer will be linear, and if the blade edge is worn or notched, the image on the computer will be regular linear jumps, so that the state of the upper slitting knife 100 can be checked by observing the computer image.

[0050] The upper roller 310 includes an upper knife shaft, an axially flexible stopper 110, a first sleeve 311 and a second sleeve 312; the first sleeve 311 and the second sleeve 312 are both sleeved on the upper knife shaft; the slitting knife 100 is sleeved on the upper knife shaft and arranged between the first sleeve 311 and the second sleeve 312; the axially flexible stopper 110 is arranged between the slitting knife 100 and the second sleeve 312, and is suitable for pushing the slitting knife 100 in the axial direction so that the slitting knife 100 is closely attached to the fixed knife 322. The axially flexible stopper 110 is used to fix the slitting knife 100 to prevent the slitting knife 100 from shaking.

[0051] Specifically, the axially flexible limiting member 110 is an annular spring.

[0052] Among them, the lower roller 320 includes a lower knife shaft, a third sleeve 323 and a fourth sleeve 324; the third sleeve 323 and the fourth sleeve 324 are both sleeved on the lower knife shaft, the fixed knife 322 is sleeved on the lower knife shaft and is arranged between the third sleeve 323 and the fourth sleeve 324; the gap between the knife groove 321 and the fourth sleeve 324 is the knife groove 321.

[0053] At least one embodiment further provides a pole piece production system, comprising: a pole piece to be cut and a slitting machine as described above; the pole piece to be cut is conveyed between an upper roller 310 and a lower roller 320 of the slitting machine, and is cut by the slitting knife 100 and the fixed knife 322. The state of the slitting knife 100 is monitored in real time, thereby improving the yield of the pole piece.

[0054] In summary, the utility model provides a slitting knife 100 detection device, a slitting machine and a pole piece production system, wherein the slitting knife 100 detection device comprises: a slitting knife 100 and a cross-type light curtain detection component, wherein the blade edge of the slitting knife 100 extends into the light curtain of the cross-type light curtain detection component. Since a cross-type light curtain detection component is installed at the blade edge of the slitting knife 100, the state image at the blade edge will be displayed on the computer in real time. If the blade edge is not worn or notched, the image on the computer will be linear. If the blade edge is worn or notched, the image on the computer will be a regular linear jump. Therefore, the state of the upper slitting knife 100 can be checked by simply observing the computer image.

[0055] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0056] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some communication interfaces. The indirect coupling or communication connection of the devices or units can be in electrical, mechanical, or other forms.

[0059] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0060] In addition, in each embodiment of the present utility model, the functional units can be integrated into one processing unit, or each unit exists physically alone, or two or more units are integrated into one unit.

[0061] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A slitting knife detection device, characterized in that: include; Slitting knife and cross light curtain detection components; The blade of the slitting knife extends into the light curtain of the cross-type light curtain detection assembly; The cross-type light curtain detection assembly includes a first direction light curtain sensor and a second direction light curtain sensor; The horizontal projection of the light curtain of the first directional light curtain sensor and the horizontal projection of the light curtain of the second directional light curtain sensor are arranged crosswise.

2. The slitting knife detection device according to claim 1, characterized in that: The first direction light curtain sensor comprises: a first transmitting end and a first receiving end; The first transmitting end and the first receiving end are arranged opposite to each other; The first transmitting end and the first receiving end are respectively arranged on the left and right sides of the cutting edge of the slitting knife, and the cutting edge of the slitting knife is arranged between the first transmitting end and the first receiving end.

3. The slitting knife detection device according to claim 1, characterized in that: The second direction light curtain sensor includes: a second transmitting end and a second receiving end; The second transmitting end and the second receiving end are arranged opposite to each other; The second transmitting end and the second receiving end are respectively arranged at the front and rear ends of the cutting edge of the slitting knife, and the cutting edge of the slitting knife is arranged between the second transmitting end and the second receiving end.

4. The slitting knife detection device according to claim 1, characterized in that: The cross-type light curtain detection assembly also includes a controller and a display module; The controller is electrically connected to the display module, the first directional light curtain sensor, and the second directional light curtain sensor respectively.

5. The slitting knife detection device according to claim 1, characterized in that: The side wall of the slitting knife is provided with an axially flexible limiting piece.

6. A slitting machine, characterized in that: include: A knife holder, an upper roller, a lower roller, and a slitting knife detection device as claimed in any one of claims 1 to 5; The upper roller and the lower roller are rotatably arranged on the tool holder, and the upper roller abuts against the lower roller; The slitting knife is fixedly arranged on the upper passing roller, and the blade edge of the slitting knife extends into the knife groove of the lower passing roller and meshes with the fixed knife in the knife groove.

7. The slitting machine according to claim 6, characterized in that: The upper roller comprises an upper cutter shaft, an axial flexible limiter, a first sleeve and a second sleeve; The first shaft sleeve and the second shaft sleeve are both sleeved on the upper cutter shaft; The slitting knife sleeve is arranged on the upper knife shaft and is arranged between the first shaft sleeve and the second shaft sleeve; The axially flexible limiting member is arranged between the slitting knife and the second shaft sleeve, and is suitable for pushing the slitting knife in the axial direction so that the slitting knife is in close contact with the fixed knife.

8. The slitting machine according to claim 7, characterized in that: The lower roller comprises a lower cutter shaft, a third shaft sleeve and a fourth shaft sleeve; The third sleeve and the fourth sleeve are both sleeved on the lower cutter shaft. The fixed knife sleeve is arranged on the lower knife shaft and is arranged between the third shaft sleeve and the fourth shaft sleeve; The gap between the knife groove and the fourth sleeve is the knife groove.

9. A pole piece production system, characterized in that: include: A pole piece to be cut and a slitting machine as claimed in any one of claims 6 to 8; The electrode piece to be cut is transported between the upper roller and the lower roller of the slitting machine, and is cut by the slitting knife and the fixed knife.

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