Pole piece coating material erasing device

Abstract

The utility model provides a pole piece coating material wiping device. The pole piece coating material wiping device comprises a bottom plate, a workbench, a scraping plate assembly and two side plates, the workbench is fixed on the bottom plate and is used for bearing a pole piece to be wiped; the two side plates are arranged on the bottom plate in a sliding mode, located on the two sides of the workbench correspondingly and used for clamping the pole piece to be wiped. The scraping plate assembly comprises a scraping shaft and a scraping plate, the two ends of the scraping shaft are slidably connected to the two side plates respectively, and the scraping plate is installed on the scraping shaft and used for abutting against the surface of the pole piece to be wiped. When the side plate slides to abut against the side face of the workbench, the side plate clamps the to-be-wiped pole piece to fix and position the to-be-wiped pole piece, the scraping plate abuts against the surface of the to-be-wiped pole piece, in the process that the scraping shaft slides along the side plate, a coating material on the surface of the to-be-wiped pole piece is wiped, the wiping effect is good, and the wiping efficiency is high; and the prepared button cell pole piece has good consistency, and the influence on the electrical performance data of the button cell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pole piece manufacturing, in particular to an erasing device for pole piece coating material. Background Technique

[0002] During the production process of the battery cell, due to some uncertain factors, the process or electrical performance data usually deviate from the design values and fail to meet the design standards. The common solution is to take the pole piece after rolling in the rolling section to make a button cell for testing, obtain relevant electrical performance data, and predict whether the full electrical data of the battery cell meets the standards. An important step in making a button cell from the rolled pole piece is to erase the coating material on the pole piece. Since the button cell pole piece is a single-sided coated pole piece, it is necessary to erase the coating material on one side of the rolled pole piece.

[0003] At present, for the erasure of the coating material, generally, a worker holds a rag sprayed with alcohol for wiping. There is no clear erasure standard, and the erasure standard varies from person to person. Problems such as unsatisfactory erasure effect, low erasure efficiency, and poor consistency of the obtained button cell pole pieces will occur, which have a great impact on the electrical performance data of the button cell, and further affect the accuracy of product electrical performance prediction. It will also affect the analysis results in the failure analysis of the battery cell. Content of the Utility Model

[0004] In view of this, the utility model provides an erasing device for pole piece coating material to solve the technical problems of unsatisfactory erasure effect, low erasure efficiency, poor consistency of the obtained button cell pole pieces, and great impact on the electrical performance data of the button cell as mentioned in the above background technique.

[0005] The technical solution of the utility model is realized as follows:

[0006] The utility model provides an erasing device for pole piece coating material, which includes a bottom plate, a workbench, a scraping plate assembly and two side plates. Among them:

[0007] The workbench is fixed on the bottom plate and is used for carrying the pole piece to be wiped;

[0008] The two side plates are slidably arranged on the bottom plate and are respectively located on both sides of the workbench, and are used for clamping the pole piece to be wiped;

[0009] The scraping plate assembly includes a scraping shaft and a scraping plate. The two ends of the scraping shaft are respectively slidably connected to the two side plates, and the scraping plate is installed on the scraping shaft and is used for abutting against the surface of the pole piece to be wiped.

[0010] On the basis of the above technical solutions, preferably, the side plate includes a side pushing part and a top pressing part. The side pushing part abuts against the side surface of the workbench, the top pressing part is located above the side pushing part, and the width of the top pressing part is greater than the width of the side pushing part. The bottom surface of the top pressing part is used for pressing down on the pole piece to be wiped.

[0011] On the basis of the above technical solutions, preferably, a chute parallel to the length direction of the workbench is provided on the top surface of the pressing part, and the scraping plate assembly further includes two rolling bearings, and the two rolling bearings are respectively installed at both ends of the scraping shaft and are rollingly installed in the chute.

[0012] On the basis of the above technical solutions, preferably, the scraping plate includes a scraping plate body and an outer coating layer. The scraping plate body is connected to the scraping shaft, and the outer coating layer is sleeved outside the scraping plate body.

[0013] On the basis of the above technical solutions, preferably, an installation hole is provided in the center of the scraping plate body. The installation hole is a square hole, and an installation part is provided on the scraping shaft, and the installation part is connected to the installation hole.

[0014] On the basis of the above technical solutions, preferably, the outer coating layer is made of silica gel material, and the cross section of the outer coating layer is oval.

[0015] On the basis of the above technical solutions, preferably, a pushing member is further included. The pushing member is connected to the side pushing part and is used to push the side plate towards the workbench.

[0016] On the basis of the above technical solutions, preferably, the pushing member includes a connecting bolt and an abutting nut. A through hole is provided on the side pushing part, and connecting screw holes are provided on both sides of the workbench. The connecting bolt passes through the through hole and is connected to the connecting screw hole. The abutting nut is connected to the connecting bolt and abuts against the side of the side pushing part away from the workbench.

[0017] On the basis of the above technical solutions, preferably, the width of the workbench is smaller than the width of the polar plate to be wiped.

[0018] On the basis of the above technical solutions, preferably, the scraping plate assembly further includes a bracket and a handle. Both ends of the bracket are connected to both ends of the scraping shaft, and the handle is connected to the middle of the bracket.

[0019] The polar plate coating material erasing device of the present utility model has the following beneficial effects compared with the prior art:

[0020] (1) The two side plates are slidably arranged on the bottom plate and are respectively located on both sides of the workbench. When the side plates slide to abut against the side surface of the workbench, the side plates clamp the polar plate to be wiped to fix and position it; both ends of the scraping shaft are slidably connected to the two side plates respectively, and the scraping plate is installed on the scraping shaft and abuts against the surface of the polar plate to be wiped. During the process of the scraping shaft sliding along the side plate, the coating material on the surface of the polar plate to be wiped is erased. The erasing effect is good, the erasing efficiency is high, and the consistency of the button battery polar plate prepared is better, reducing the influence on the electrical performance data of the button battery and improving the accuracy of product electrical performance prediction, and will not affect the analysis results in the analysis of cell failure;

[0021] (2) By the side pushing part abutting against the side surface of the workbench, the side surface of the polar plate to be wiped is aligned and positioned. The pressing part is located above the side pushing part and the width of the pressing part is greater than the width of the side pushing part. The bottom surface of the pressing part is used to press down on the polar plate to be wiped to press the top surface of the polar plate to be wiped. Through the fixation of the side surface and the top surface, the fixation of the polar plate to be wiped is more firm, improving the reliability and stability of the device;

[0022] (3) By a chute parallel to the length direction of the workbench is arranged on the top surface of the pressing part, and two rolling bearings are respectively installed at both ends of the scraping shaft. When the two side plates abut against the side surface of the workbench, the two rolling bearings are rollingly installed in the chute to realize the sliding of the scraping shaft along the chute. During the rolling process of the rolling bearings, the scraping plate can always keep in contact with the top surface of the polar plate to be wiped, improving the erasing effect and erasing efficiency;

[0023] (4) By an installation hole is arranged at the center of the scraping plate body, and an installation part is arranged on the scraping shaft. The installation part is connected to the installation hole. Since the installation hole is a square hole, after the installation part is connected to the installation hole, the scraping plate body will not rotate relative to the scraping shaft, improving the stability of the connection and the reliability of the device;

[0024] (5) By the pushing member includes a connecting bolt and an abutting nut. A through hole is arranged on the side pushing part, and connecting screw holes are arranged on both side surfaces of the workbench. The connecting bolt passes through the through hole and is connected to the connecting screw hole. The abutting nut is connected to the connecting bolt and abuts against the side of the side pushing part away from the workbench. By screwing the connecting bolt into the connecting screw hole, the connecting nut pushes the side pushing part to move towards the side surface of the workbench until it abuts against the side surface of the workbench, realizing the connection and fixation of the side plate and the workbench. One structure realizes two functions of side pushing and connection fixation, reducing the number of parts and making the structure more compact and small. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is an exploded view of the pole piece coating material erasing device of the present invention;

[0027] Figure 2 It is a three-dimensional view of the assembled pole piece coating material erasing device (without the pushing member) of the present invention;

[0028] Figure 3 It is the front view of the scraping plate assembly of the present invention;

[0029] Figure 4 It is an exploded view of the scraping plate assembly (without the bracket and handle) of the present invention;

[0030] Figure 5 It is the side view of the scraping shaft and the scraping plate of the present invention.

[0031] Explanation of reference numerals: 1 - bottom plate, 2 - workbench, 3 - scraping plate assembly, 4 - side plate, 5 - pushing member;

[0032] 21 - connecting screw hole;

[0033] 31 - scraping shaft, 311 - installation part, 32 - scraping plate, 321 - scraping plate body, 3211 - installation hole, 322 - outer coating, 33 - rolling bearing, 34 - bracket, 35 - handle;

[0034] 41 - side pushing part, 411 - through hole, 42 - top pressing part, 421 - sliding groove;

[0035] 51 - connecting bolt, 52 - abutting nut. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0037] Refer to Figures 1 - 5As shown in the figure, an embodiment of the present utility model provides a device for erasing coating material on a pole piece, which includes a bottom plate 1, a workbench 2, a scraping plate assembly 3 and two side plates 4, where:

[0038] The workbench 2 is fixed on the bottom plate 1 and is used for carrying the pole piece to be wiped.

[0039] The two side plates 4 are slidably arranged on the bottom plate 1 and are respectively located on both sides of the workbench 2, and are used for clamping the pole piece to be wiped.

[0040] The scraping plate assembly 3 includes a scraping shaft 31 and a scraping plate 32. The two ends of the scraping shaft 31 are respectively slidably connected to the two side plates 4, and the scraping plate 32 is installed on the scraping shaft 31 and is used for abutting against the surface of the pole piece to be wiped.

[0041] In the device for erasing coating material on a pole piece provided by this embodiment, the two side plates 4 are slidably arranged on the bottom plate 1 and are respectively located on both sides of the workbench 2. When the side plates 4 slide to abut against the side surface of the workbench 2, the side plates 4 clamp the pole piece to be wiped to fix and position it; the two ends of the scraping shaft 31 are respectively slidably connected to the two side plates 4, and the scraping plate 32 is installed on the scraping shaft 31 and abuts against the surface of the pole piece to be wiped. During the process of the scraping shaft 31 sliding along the side plates 4, the coating material on the surface of the pole piece to be wiped is erased. The erasing effect is good, the erasing efficiency is high, and the consistency of the button cell pole piece produced is better, reducing the influence on the electrical performance data of the button cell and improving the accuracy of product electrical performance prediction, and will not affect the analysis results in the analysis of cell failure.

[0042] In some embodiments, the side plate 4 includes a side pushing portion 41 and a top pressing portion 42. The side pushing portion 41 abuts against the side surface of the workbench 2, the top pressing portion 42 is located above the side pushing portion 41 and the width of the top pressing portion 42 is greater than the width of the side pushing portion 41, and the bottom surface of the top pressing portion 42 is used for pressing down on the pole piece to be wiped. By the side pushing portion 41 abutting against the side surface of the workbench 2, the side surface of the pole piece to be wiped is aligned and positioned. The top pressing portion 42 is located above the side pushing portion 41 and the width of the top pressing portion 42 is greater than the width of the side pushing portion 41, and the bottom surface of the top pressing portion 42 is used for pressing down on the pole piece to be wiped to press the top surface of the pole piece to be wiped. Through the fixation of the side surface and the top surface, the fixation of the pole piece to be wiped is more firm, improving the reliability and stability of the device.

[0043] In some embodiments, a chute 421 parallel to the length direction of the workbench 2 is provided on the top surface of the pressing part 42. The scraping plate assembly 3 further includes two rolling bearings 33. The two rolling bearings 33 are respectively installed at both ends of the scraping shaft 31 and are rollingly installed in the chute 421. By providing the chute 421 parallel to the length direction of the workbench 2 on the top surface of the pressing part 42 and respectively installing the two rolling bearings 33 at both ends of the scraping shaft 31, when the two side plates 4 abut against the side surface of the workbench 2, the two rolling bearings 33 are rollingly installed in the chute 421, so as to realize the sliding of the scraping shaft 31 along the chute 421. During the rolling process of the rolling bearings 33, the scraping plate can always keep in contact with the top surface of the polar plate to be wiped, improving the wiping effect and wiping efficiency.

[0044] In some embodiments, the scraping plate 32 includes a scraping plate body 321 and an outer coating layer 322. The scraping plate body 321 is connected to the scraping shaft 31, and the outer coating layer 322 is sleeved outside the scraping plate body 321. By connecting the scraping plate body 321 to the scraping shaft 31 and sleeving the outer coating layer 322 outside the scraping plate body 321, and the outer coating layer 322 is in contact with the top surface of the polar plate to be wiped, during the sliding of the scraping shaft 31 along the chute 421, the outer coating layer 322 wipes the coating material on the top surface of the polar plate to be wiped.

[0045] In some embodiments, a mounting hole 3211 is provided at the center of the scraping plate body 321. The mounting hole 3211 is a square hole. An installation part 311 is provided on the scraping shaft 31, and the installation part 311 is connected to the mounting hole 3211. By providing the mounting hole 3211 at the center of the scraping plate body 321, providing the installation part 311 on the scraping shaft 31, and connecting the installation part 311 to the mounting hole 3211, and the mounting hole 3211 is a square hole, after the installation part 311 is connected to the mounting hole 3211, the scraping plate body 321 will not rotate relative to the scraping shaft 31, improving the connection stability and the reliability of the device.

[0046] In some embodiments, the outer coating layer 322 is made of silica gel, and the cross section of the outer coating layer 322 is oval. By using silica gel as the material of the outer coating layer 322, due to the relatively soft property of silica gel, the polar plate will not be damaged during the wiping process, improving the reliability and stability; by making the cross section of the outer coating layer 322 oval, the long axis end of the oval contacts the polar plate to be wiped, and the oval structure can reduce the volume of the outer coating layer 322, making the structure more compact.

[0047] In some embodiments, the damage tab coating erasing device further includes a pushing member 5, which is connected to the side pushing portion 41 and is used to push the side plate 4 towards the workbench 2. By connecting the pushing member 5 to the side pushing portion 41, the pushing member 5 pushes the side plate 4 towards the workbench 2 until the side plate 4 abuts against the side surface of the workbench 2.

[0048] In some embodiments, the pushing member 5 includes a connecting bolt 51 and an abutting nut 52. A through hole 411 is provided on the side pushing portion 41, and connecting screw holes 21 are provided on both side surfaces of the workbench 2. The connecting bolt 51 passes through the through hole 411 and is connected to the connecting screw hole 21. The abutting nut 52 is connected to the connecting bolt 51 and abuts against the side of the side pushing portion 41 away from the workbench 2. By the pushing member 5 including the connecting bolt 51 and the abutting nut 52, a through hole 411 is provided on the side pushing portion 41, connecting screw holes 21 are provided on both side surfaces of the workbench 2, the connecting bolt 51 passes through the through hole 411 and is connected to the connecting screw hole 21, the abutting nut 52 is connected to the connecting bolt 51 and abuts against the side of the side pushing portion 41 away from the workbench 2. By screwing the connecting bolt 51 into the connecting screw hole 21, the connecting nut pushes the side pushing portion 41 to move towards the side surface of the workbench 2 close to it until it abuts against the side surface of the workbench 2. The pushing is in place and the connection and fixation between the side plate 4 and the workbench 2 are realized. One structure realizes two functions of side pushing and connection fixation, reduces the number of parts, and makes the structure more compact and small.

[0049] In some embodiments, the width of the workbench 2 is smaller than the width of the tab to be wiped. By making the width of the tab to be wiped slightly smaller than the width of the workbench 2, it is ensured that both sides in the width direction of the tab to be wiped can be positioned and fixed by the abutment of the side plate 4, avoiding the situation that the tab to be wiped is too narrow to position both sides in the width direction of the tab to be wiped, resulting in poor consistency due to inconsistent wiping positions, and improving reliability and stability.

[0050] In some embodiments, the scraper 32 assembly further includes a bracket 34 and a handle 35. Both ends of the bracket 34 are connected to both ends of the scraping shaft 31, and the handle 35 is connected to the middle of the bracket 34. By connecting both ends of the bracket 34 to both ends of the scraping shaft 31 and connecting the handle 35 to the middle of the bracket 34, an operator can hold the handle 35 and push the rolling bearing 33 to roll in the chute 421, thereby realizing the movement of the scraping shaft 31 along the chute 421 and improving the convenience of the device.

[0051] The working principle of the polar plate coating erasing device is as follows: Place the polar plate to be wiped on the workbench 2, and then screw the connecting bolt 51 into the connecting screw hole 21. The connecting nut pushes the side pushing part 41 to move towards the side of the workbench 2 until it abuts against the side of the workbench 2, achieving the connection and fixation of the side plate 4 and the workbench 2. The side pushing part 41 abuts against the side of the workbench 2, and the bottom surface of the pressing part 42 presses down on the polar plate to be wiped, pressing the side and top surfaces of the polar plate to be wiped; The operator holds the handle 35 and pushes the rolling bearing 33 to roll in the sliding groove 421, thereby realizing the movement of the scraping shaft 31 along the sliding groove 421. During the sliding process of the scraping shaft 31 along the sliding groove 421, the coating on the surface of the polar plate to be wiped is erased. The erasing effect is good, the erasing efficiency is high, and the produced button cell polar plates have better consistency, reducing the impact on the electrical performance data of the button cell and improving the accuracy of product electrical performance prediction, without affecting the analysis results in the analysis of cell failure.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pole piece coating material erasing device, characterized in that, It includes a bottom plate, a workbench, a scraping plate assembly and two side plates, where: The workbench is fixed on the bottom plate and is used to carry the polar plate to be wiped; The two side plates are slidably arranged on the bottom plate and are respectively located on both sides of the workbench, and are used to clamp the polar plate to be wiped; The scraping plate assembly includes a scraping shaft and a scraping plate. The two ends of the scraping shaft are respectively slidably connected to the two side plates, and the scraping plate is installed on the scraping shaft and is used to abut against the surface of the polar plate to be wiped.

2. The pole piece coating material erasing device according to claim 1, characterized in that, The side plate includes a side pushing part and a pressing part. The side pushing part abuts against the side surface of the workbench. The pressing part is located above the side pushing part and the width of the pressing part is greater than the width of the side pushing part. The bottom surface of the pressing part is used to press down on the polar plate to be wiped.

3. The pole piece coating material erasing device according to claim 2, characterized in that A chute parallel to the length direction of the workbench is arranged on the top surface of the pressing part. The scraping plate assembly further includes two rolling bearings. The two rolling bearings are respectively installed at the two ends of the scraping shaft and are rollingly installed in the chute.

4. The pole piece coating material erasing device according to claim 3, characterized in that The scraping plate includes a scraping plate body and an outer coating. The scraping plate body is connected to the scraping shaft, and the outer coating is sleeved outside the scraping plate body.

5. The pole piece coating material erasing device according to claim 4, characterized in that, An installation hole is arranged at the center of the scraping plate body. The installation hole is a square hole. An installation part is arranged on the scraping shaft, and the installation part is connected to the installation hole.

6. The pole piece coating erasing device according to claim 5, characterized in that, The outer coating is made of silica gel, and the cross section of the outer coating is oval.

7. The pole piece coating material erasing device according to claim 6, characterized in that, It further includes a top pushing member. The top pushing member is connected to the side pushing part and is used to push the side plate to move towards the workbench.

8. The pole piece coating material erasing device according to claim 7, characterized in that, The top pushing member includes a connecting bolt and an abutting nut. A through hole is arranged on the side pushing part. Connecting screw holes are arranged on both side surfaces of the workbench. The connecting bolt passes through the through hole and is connected to the connecting screw hole. The abutting nut is connected to the connecting bolt and abuts against the side of the side pushing part away from the workbench.

9. The pole piece coating erasing device according to claim 8, characterized in that, The width of the workbench is smaller than the width of the polar plate to be wiped.

10. The pole piece coating material erasing device according to any one of claims 1-9, characterized in that, The scraping plate assembly further includes a bracket and a handle. The two ends of the bracket are connected to the two ends of the scraping shaft, and the handle is connected to the middle of the bracket.

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