An electrode tab coating spacer

Abstract

The application discloses a kind of pole piece coating gaskets, including gasket main body, first movable baffle and second movable baffle;Gasket main body includes first arm and second arm, and opening is formed between first arm and second arm;First movable baffle is movably installed in the end of first arm by first guide rail, and first power mechanism is connected with first movable baffle;Second movable baffle is movably installed in the end of second arm by second guide rail, and second power mechanism is connected with second movable baffle;First guide rail and second guide rail are arranged in parallel, and perpendicular to the opening direction of gasket main body;The thickness of movable baffle is equal to the thickness of gasket main body.So by using this kind of structure form, not only can effectively improve work efficiency, but also can effectively save the cost of gasket.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pole piece coating pad, and particularly relates to a pole piece coating pad. BACKGROUND

[0002] The statements herein are provided only to enhance understanding of the present application and are not necessarily intended to constitute the prior art.

[0003] In the production process of battery pole piece, electrode paste needs to be coated on aluminum foil or copper foil to prepare pole piece. Generally, fixed extrusion coating pad is used to realize slit coating, and the coating width is determined by the opening size of the pad.

[0004] Different models of batteries correspond to different sizes of pole pieces, that is, different widths of coating are required, and the opening size of the pad is also required to be different. However, the opening of the existing pad is generally fixed, so when the same coating machine is used to coat different size pole pieces, the pad needs to be replaced constantly. During the replacement of the pad, the left and right ends of the pad are prone to displacement, which causes the pad to be uneven in the die, and the coating cannot be carried out. Moreover, the die needs to be cleaned again, which causes complicated process and low work efficiency. In addition, different sizes of pole pieces correspond to different pads, which increases the cost of the pad.

[0005] Although some pads are provided with slots at the opening, the movable baffle plate can be detachably inserted into the slot through the insert piece to coat different size pole pieces. However, when different size pole pieces are switched, the die and the movable baffle plate still need to be cleaned, and then the insertion position of the movable baffle plate and the pad body is manually changed to adjust the opening size of the pad. Moreover, the opening adjustment precision of the pad with this structure is poor, and it is difficult to adjust the opening of the pad in time when the opening size of the pad does not match the size of the pole piece. Therefore, when the pad is used for coating, the operation is still complicated and the work efficiency is low. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the present application is to provide a pole piece coating pad.

[0007] In order to achieve the above purpose, the present application is realized by the following technical scheme:

[0008] A pole piece coating pad, comprising a pad body, a first movable baffle plate and a second movable baffle plate.

[0009] The pad body comprises a first arm and a second arm, and the first arm and the second arm form an opening therebetween.

[0010] The first movable baffle plate is movably installed at the end of the first arm through a first guide rail, and a first power mechanism is connected with the first movable baffle plate.

[0011] The second movable baffle is movably installed at the end of the second arm through the second guide rail, and the second power mechanism is connected with the second movable baffle.

[0012] The first guide rail and the second guide rail are arranged in parallel and are perpendicular to the opening direction of the gasket body.

[0013] The thickness of the movable baffle is equal to the thickness of the gasket body.

[0014] The movable baffle is movably installed at the end of the arm of the gasket body through the guide rail and can move reciprocatingly along the guide rail. According to the size of the pole piece to be coated, the distance between the two movable baffles is adjusted, and then the opening size of the gasket is adjusted. When the size of the pole piece is changed, the gasket and the die head do not need to be cleaned, and only the two movable baffles need to be continuously adjusted through the first power mechanism and the second power mechanism, so that the opening size of the gasket can be continuously and accurately adjusted to adapt to the coating size of the pole piece.

[0015] Therefore, by adopting the structure, the working efficiency can be effectively improved, and the cost of the gasket can be effectively saved.

[0016] The first movable baffle and the second movable baffle and the gasket body form a slurry containing cavity, and a slurry slit outlet is formed between the first movable baffle and the second movable baffle. The thickness of the movable baffle is equal to the thickness of the gasket body, so as to ensure the sealing effect of the slurry and avoid leakage.

[0017] In some embodiments, the middle part of the first movable baffle is provided with a through groove, the through groove is arranged through the thickness direction, the through groove is parallel to the first guide rail, and the side of the through groove parallel to the first guide rail is uniformly distributed with a tooth groove.

[0018] The first power mechanism comprises a first gear and a first gear adjusting mechanism, the first gear is arranged in the through groove and matched with the tooth groove, and the first gear adjusting mechanism is connected with the first gear to provide power for the first gear.

[0019] During installation, the first gear is positioned and installed on the die head through the first gear adjusting mechanism, so that the first gear only has rotational motion and does not have translational motion of position. In this case, the first gear adjusting mechanism drives the first gear to rotate, and the first gear drives the first movable baffle to move translationally through the tooth groove.

[0020] Preferably, the middle part of the second movable baffle is provided with a through groove, the through groove is arranged through the thickness direction, the through groove is parallel to the second guide rail, and the side of the through groove parallel to the second guide rail is uniformly distributed with a tooth groove.

[0021] The second power mechanism comprises a second gear and a second gear adjusting mechanism, the second gear is arranged in the through groove and matched with the tooth groove, and the second gear adjusting mechanism is connected with the second gear to provide power for the second gear.

[0022] In the installation, the second gear is positioned and installed on the die head through the second gear adjusting mechanism, so that the second gear only has rotational movement and does not have translational movement of position. In this case, the second gear adjusting mechanism drives the first gear to rotate, and the second gear drives the second movable baffle to have translational movement through the gear slot.

[0023] Further preferably, the first gear adjusting mechanism is a first transmission shaft, and the second gear adjusting mechanism is a second transmission shaft.

[0024] The first transmission shaft is vertically and fixedly connected with the middle part of the first gear.

[0025] The second transmission shaft is vertically and fixedly connected with the middle part of the second gear.

[0026] In the installation, a brake device can be arranged, when it is needed to adjust the positions of the first movable baffle and the second movable baffle, the brake device (such as an additional clamping device) is loosened, so that the first transmission shaft and / or the second transmission shaft can rotate. When the distance between the two movable baffles is adjusted and the movable baffles can work normally, the brake device is used to fix the first transmission shaft and the second transmission shaft, so as to prevent the movable baffles from being displaced inappropriately during the work.

[0027] Further preferably, the first transmission shaft and the second transmission shaft are both prismatic structures.

[0028] A through hole is arranged at the corresponding position of the die head, so that the first transmission shaft and the second transmission shaft pass through the through hole, a sealing brake layer is arranged between the transmission shaft and the die head, and the transmission shaft and the sealing brake layer are in interference fit, so as to provide sufficient friction force for the first transmission shaft and ensure the normal operation of the coating work. If it is needed to adjust the positions of the movable baffles, a large enough external force is used to twist the transmission shaft and drive the gear to rotate.

[0029] In some embodiments, a through hole assembly is arranged on the gasket body. The gasket body is firmly installed on the die head through the bolt assembly.

[0030] In some embodiments, the first guide rail includes a first groove arranged on the gasket body and a first protruding strip arranged on the first movable baffle, and the outer side of the first protruding strip is an enlarged structure.

[0031] The first protruding strip is arranged in cooperation with the first groove.

[0032] Preferably, the first liquid scraping element is arranged at one end of the first guide rail inside the gasket body, is fixed at one end of the gasket body, and extends to the first protruding strip and is arranged in adhesion to the surface of the first protruding strip at the other end.

[0033] Further preferably, the first liquid scraping element is an elastic sheet, and an acting force exists between the first liquid scraping element and the first convex strip surface.

[0034] Since the inner side of the gasket body is the slurry accommodating cavity, the slurry part can avoid contacting the first convex strip of the first guide rail and easily adhere to the first convex strip in the process of adapting to different sizes of the pole piece. In the process of the first movable baffle plate translation, especially in the process of moving outward to increase the opening of the gasket, the first liquid scraping element arranged in time can scrape off the slurry adhered to the first convex strip, prevent the slurry from being brought into the first groove, and thus the jamming of the first guide rail can be avoided.

[0035] Preferably, the second guide rail comprises a second groove arranged on the gasket body and a second convex strip arranged on the second movable baffle plate, and the outer side of the second convex strip is an expanded structure.

[0036] The second convex strip is arranged in cooperation with the second groove.

[0037] Further preferably, the second liquid scraping element is arranged at one end of the second guide rail on the inner side of the gasket body, is fixed on the gasket body at one end, and is arranged in abutment with the surface of the second convex strip at the other end.

[0038] Further preferably, the second liquid scraping element is an elastic sheet, and an acting force exists between the second liquid scraping element and the second convex strip surface.

[0039] The beneficial effects achieved by one or more embodiments of the above-mentioned application are as follows:

[0040] The movable baffle plates are movably installed at the end of the arm of the gasket body through the guide rails, can move reciprocally along the guide rails, the distance between the two movable baffle plates is adjusted according to the size of the pole piece to be coated, and then the opening size of the gasket is adjusted. When the size of the pole piece is changed, the gasket and the die head do not need to be cleaned, and only the two movable baffle plates need to be continuously adjusted through the first power mechanism and the second power mechanism, so that the opening size of the gasket can be continuously and accurately adjusted to adapt to the coating size of the pole piece. Therefore, by adopting this structure form, the work efficiency can be effectively improved, and the cost of the gasket can be effectively saved. BRIEF DESCRIPTION OF DRAWINGS

[0041] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, make an explanation of the application, and do not constitute an improper limitation of the application.

[0042] Figure 1 is a structural schematic view of a pole piece coating gasket according to an embodiment of the application;

[0043] Figure 2is a structural schematic diagram of the movable baffle of the embodiment of the present application;

[0044] Figure 3 is a working principle diagram of the movable baffle of the embodiment of the present application;

[0045] Figure 4 is a working schematic diagram of the pole piece coating gasket of the embodiment of the present application;

[0046] Figure 5 is an assembly structure schematic diagram between the gasket main body and the movable baffle in the pole piece coating gasket of the embodiment of the present application.

[0047] Among them, 1 is the first movable baffle; 2 is the gasket main body; 3 is the first gear; 4 is the first gear track; 5 is the first gear adjusting mechanism; 6 is the die upper plate; 7 is the die lower plate; 8 is the first guide rail. DETAILED DESCRIPTION

[0048] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0049] The present application will be further described below in conjunction with the drawings and embodiments.

[0050] As shown in the drawings, Figure 1 A pole piece coating gasket includes a gasket main body 2, a first movable baffle 1 and a second movable baffle.

[0051] The gasket main body 1 includes a first arm and a second arm, and an opening is formed between the first arm and the second arm;

[0052] The first movable baffle 1 is movably mounted at the end of the first arm through the first guide rail, and the first power mechanism is connected with the first movable baffle 1;

[0053] The middle part of the first movable baffle 1 is provided with a through slot, the through slot forms a first gear track 4, the through slot is provided through the thickness direction, the through slot is parallel to the first guide rail 8, and the side of the through slot parallel to the first guide rail 8 is uniformly distributed with a gear slot;

[0054] As shown in the drawings, Figure 2 The first power mechanism includes a first gear 3 and a first gear adjusting mechanism 5, the first gear 3 is arranged in the through slot and cooperates with the gear slot; the first gear adjusting mechanism 5 is connected with the first gear and provides power for the first gear 3, the first gear adjusting mechanism 5 is a first transmission shaft, and the first transmission shaft is fixedly connected with the middle part of the first gear 3 perpendicularly.

[0055] The second movable baffle is movably installed at the end of the second arm through the second guide rail, and the second power mechanism is connected with the second movable baffle.

[0056] The first guide rail and the second guide rail are arranged in parallel and are perpendicular to the opening direction of the gasket body.

[0057] The thickness of the movable baffle is equal to the thickness of the gasket body.

[0058] The first transmission shaft and the second transmission shaft are both prismatic structures.

[0059] The middle part of the second movable baffle is provided with a through slot, which is arranged through the thickness direction of the second movable baffle, is parallel to the second guide rail, and is uniformly provided with a gear slot on the side parallel to the second guide rail.

[0060] The second power mechanism comprises a second gear and a second gear adjusting mechanism. The second gear is arranged in the through slot and is matched with the gear slot. The second gear adjusting mechanism is connected with the second gear and provides power for the second gear. The second gear adjusting mechanism is a second transmission shaft, which is fixedly connected with the middle part of the second gear perpendicularly.

[0061] As shown in Figure 4 , the gasket is installed and fixed between the upper die plate 6 and the lower die plate 7. The first movable baffle 1, the second movable baffle, the gasket body, the upper die plate and the lower die plate form a slurry containing cavity, and the first movable baffle 1 and the second movable baffle form a slurry slit outlet. The thickness of the movable baffle is equal to the thickness of the gasket body, so as to ensure the sealing effect of the slurry and avoid leakage.

[0062] As shown in Figure 3 and Figure 5 , the movable baffle is movably installed at the end of the arm of the gasket body through the guide rail and can move reciprocally along the guide rail. According to the size of the pole piece to be coated, the distance between the two movable baffles is adjusted, and then the opening size of the gasket is adjusted. When the size of the pole piece is changed, the gasket and the die are not needed to be cleaned, and only the two movable baffles are continuously adjusted through the first power mechanism and the second power mechanism, so that the opening size of the gasket can be continuously and accurately adjusted to adapt to the coating size of the pole piece. Therefore, by adopting this structure, the work efficiency can be effectively improved, and the cost of the gasket can be effectively saved.

[0063] During installation, the first gear 3 is positioned on the mold head via a first gear adjustment mechanism, ensuring that the first gear only rotates and does not translate. In this configuration, the first gear adjustment mechanism drives the first gear to rotate, and the first gear, through its tooth grooves, drives the first movable baffle to translate. The second gear is positioned on the mold head via a second gear adjustment mechanism, ensuring that the second gear only rotates and does not translate. In this configuration, the second gear adjustment mechanism drives the first gear to rotate, and the second gear, through its tooth grooves, drives the second movable baffle to translate.

[0064] A through hole is made at the corresponding position on the die head, through which the first and second drive shafts pass. A sealing and braking layer is installed between the drive shafts and the die head, with an interference fit between the drive shafts and the sealing and braking layer to provide sufficient friction for the first drive shaft, ensuring the normal operation of the coating process. If it is necessary to adjust the position of the movable baffle, a sufficiently large external force is used to twist the drive shaft, driving the gear to rotate.

[0065] A braking device can also be provided. When it is necessary to adjust the position of the first movable baffle 1 and the second movable baffle, the braking device (such as an additional clamping device) can be released to allow the first drive shaft and / or the second drive shaft to rotate. When the distance between the two movable baffles is adjusted and normal operation is possible, the braking device is used to fix the first drive shaft and the second drive shaft to prevent unsuitable displacement of the movable baffles during operation.

[0066] The gasket body 2 is provided with a through-hole assembly. This assembly is used to securely mount the gasket body 2 to the die head using a bolt assembly.

[0067] like Figure 5 As shown, the first guide rail 8 includes a first groove disposed on the gasket body and a first protrusion disposed on the first movable baffle. The outer side of the first protrusion has an enlarged structure; the first protrusion is fitted into the first groove. It also includes a first scraping element, which is disposed at one end of the first guide rail located inside the gasket body. One end of the first scraping element is fixed to the gasket body, and the other end extends towards the first protrusion and conforms to the surface of the first protrusion. The first scraping element is an elastic sheet, and there is an interaction force between the first scraping element and the surface of the first protrusion.

[0068] The second guide rail includes a second groove disposed in the gasket body and a second protrusion disposed in the second movable baffle. The outer side of the second protrusion has an enlarged structure. The second protrusion is configured to cooperate with the second groove. A second wiper element is disposed at one end of the second guide rail located inside the gasket body. One end of the wiper element is fixed to the gasket body, and the other end extends toward the second protrusion and is disposed in contact with the surface of the second protrusion. The second wiper element is an elastic sheet, and there is an interaction force between the second wiper element and the surface of the second protrusion.

[0069] Since the inner side of the gasket body is the slurry accommodating cavity, the slurry part can avoid contacting the convex strip of the guide rail and is easy to adhere to the convex strip in the process of adapting to different sizes of pole pieces. In the process of translating the movable baffle, especially in the process of moving outward to increase the gasket opening, the liquid scraping element arranged can timely scrape off the slurry adhered to the convex strip, prevent the slurry from being brought into the groove, and thus the jamming of the guide rail can be avoided.

[0070] The end portions of the first convex strip of the first guide rail and the second convex strip of the second guide rail are bulged, and the first groove and the second groove are adaptively arranged, so that the convex strip can be effectively and firmly clamped and fixed in the groove, and the movable baffle can be prevented from slipping off the gasket body.

[0071] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrode coating pad, characterized in that: Includes a gasket body, a first movable baffle, and a second movable baffle; The gasket body includes a first arm and a second arm, with an opening formed between the first arm and the second arm; The first movable baffle is movably mounted on the end of the first arm via the first guide rail, and the first power mechanism is connected to the first movable baffle. The second movable baffle is movably mounted on the end of the second arm via the second guide rail, and the second power mechanism is connected to the second movable baffle; The first and second guide rails are arranged in parallel and perpendicular to the opening direction of the gasket body; The thickness of the movable baffle is equal to the thickness of the gasket body; The first guide rail includes a first groove disposed in the gasket body and a first protrusion disposed in the first movable baffle, wherein the outer side of the first protrusion is an enlarged structure; The first protrusion is configured to mate with the first groove; It also includes a first scraping element, which is disposed at one end of the first guide rail located inside the gasket body. One end of the first scraping element is fixed to the gasket body, and the other end extends toward the first protrusion and is disposed in contact with the surface of the first protrusion. The first scraping element is an elastic sheet, and there is an interaction force between the first scraping element and the surface of the first convex strip.

2. The electrode coating pad according to claim 1, characterized in that: The first movable baffle is provided with a through groove in the middle, the through groove is provided through its thickness direction, the through groove is parallel to the first guide rail, and the through groove is evenly distributed with tooth grooves on the side of the through groove that is parallel to the first guide rail. The first power mechanism includes a first gear and a first gear adjustment mechanism. The first gear is disposed in the through groove and engages with the tooth groove. The first gear adjustment mechanism is connected to the first gear and provides power to the first gear.

3. The electrode coating pad according to claim 2, characterized in that: The second movable baffle is provided with a through groove in the middle, which extends through its thickness direction. The through groove is parallel to the second guide rail, and the side of the through groove parallel to the second guide rail is evenly distributed with toothed grooves. The second power mechanism includes a second gear and a second gear adjustment mechanism. The second gear is disposed in the through groove and engages with the tooth groove. The second gear adjustment mechanism is connected to the second gear and provides power to the second gear.

4. The electrode coating pad according to claim 3, characterized in that: The first gear adjusting mechanism is a first drive shaft; the second gear adjusting mechanism is a second drive shaft; The first drive shaft is vertically and fixedly connected to the middle of the first gear; The second drive shaft is vertically and fixedly connected to the middle of the second gear.

5. The electrode coating pad according to claim 4, characterized in that: Both the first and second drive shafts are prismatic structures.

6. The electrode coating pad according to claim 1, characterized in that: The gasket body is provided with a through hole assembly.

7. The electrode coating pad according to claim 3, characterized in that: The second guide rail includes a second groove disposed in the gasket body and a second protrusion disposed in the second movable baffle, the outer side of the second protrusion having an enlarged structure; The second protrusion is configured to mate with the second groove.

8. The electrode coating pad according to claim 7, characterized in that: It also includes a second wiper element, which is disposed at one end of the second guide rail located inside the gasket body. One end of the second wiper element is fixed to the gasket body, and the other end extends toward the second protrusion and is disposed in contact with the surface of the second protrusion.

9. The electrode coating pad according to claim 8, characterized in that: The second scraping element is an elastic sheet, and there is an interaction force between the second scraping element and the surface of the second convex strip.

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