Pole piece coating gasket

Abstract

The invention discloses a pole piece coating gasket. The pole piece coating gasket comprises a gasket main body, a first movable flow baffle and a second movable flow baffle, the gasket body comprises a first arm and a second arm, and an opening is formed between the first arm and the second arm. The first movable flow baffle is movably installed at the end of the first arm through the first guide rail, and the first power mechanism is connected with the first movable flow baffle. The second movable flow 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 flow baffle. The first guide rail and the second guide rail are arranged in parallel and perpendicular to the opening direction of the gasket body. And the thickness of the movable flow baffle is equal to that of the gasket main body. Due to the adoption of the structural form, not only can the working efficiency be effectively improved, but also the cost of the gasket can be effectively saved.

Description

Technical Field

[0001] The invention relates to the field of pole piece coating gaskets, and in particular to a pole piece coating gasket. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

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

[0004] Different types of batteries have different electrode sizes, which means different coating widths are required, and thus different gasket opening sizes are required. However, the opening of existing gaskets is generally fixed, so when using the same coating machine to coat electrodes of different sizes, it is necessary to constantly replace the gaskets. In the process of replacing the gaskets, not only is it easy to cause the left and right ends of the gasket to shift, resulting in the gasket being uneven in the die and unable to be coated; the die head needs to be cleaned again, resulting in cumbersome procedures and low work efficiency. In addition, different sizes of electrodes correspond to different gaskets, which increases the cost of the gaskets.

[0005] Although some gaskets are provided with slots at the opening, and the movable baffle is removably inserted into the slot through an insert to coat pole pieces of different sizes. However, when switching pole pieces of different sizes, it is still necessary to clean the die head and the movable baffle, and then manually change the insertion position of the movable baffle and the gasket body to adjust the size of the gasket opening. Moreover, the gasket opening adjustment accuracy of this structure is poor. When the gasket opening size does not match the pole piece size, it is difficult to adjust the gasket opening in time. Therefore, when using this type of gasket for coating, there are still problems of cumbersome operation and low work efficiency. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a pole piece coating gasket.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A pole piece coating gasket, comprising a gasket body, a first movable baffle and a second movable baffle;

[0009] The gasket body includes a first arm and a second arm, and an opening is formed between the first arm and the second arm;

[0010] The first movable baffle is movably mounted on the end of the first arm through the first guide rail, and the first power mechanism is connected to the first movable baffle;

[0011] The second movable baffle is movably mounted on the end of the second arm through the second guide rail, and the second power mechanism is connected to the second movable baffle;

[0012] The first guide rail and the second guide rail are arranged in parallel and 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 mounted on the end of the arm of the gasket body through the guide rail, and can be reciprocated along the guide rail. According to the size of the pole piece to be coated, the spacing between the two movable baffles is adjusted, thereby adjusting the opening size of the gasket. When changing the size of the pole piece, there is no need to clean the gasket and the die head. Only the first power mechanism and the second power mechanism need to continuously adjust the two movable baffles to continuously and accurately adjust the opening size of the gasket to adapt to the coating size of the pole piece.

[0015] Therefore, adopting this structural form can not only effectively improve work efficiency, but also effectively save the cost of gaskets.

[0016] The first movable baffle plate, the second movable baffle plate and the gasket body form a slurry receiving chamber, and a slit outlet for the slurry is formed between the first movable baffle plate and the second movable baffle plate. The thickness of the movable baffle plate is equal to that of the gasket body to ensure the sealing effect of the slurry and avoid leakage.

[0017] In some embodiments, a through slot is provided in the middle of the first movable baffle plate, the through slot runs through the thickness direction thereof, the through slot is parallel to the first guide rail, and the tooth slots are evenly distributed on one side of the through slot parallel to the first guide rail;

[0018] The first power mechanism includes a first gear and a first gear adjustment mechanism. The first gear is arranged in the through groove and matched with the tooth groove. The first gear adjustment mechanism is connected to 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 adjustment mechanism, so that the first gear only rotates without translation. In this case, the first gear adjustment mechanism drives the first gear to rotate, and the first gear drives the first movable baffle to translate through the tooth groove.

[0020] Preferably, a through groove is provided in the middle of the second movable baffle plate, the through groove is arranged through the thickness direction thereof, the through groove is parallel to the second guide rail, and the tooth grooves are evenly distributed on one side of the through groove parallel to the second guide rail;

[0021] The second power mechanism includes a second gear and a second gear adjustment mechanism. The second gear is arranged in the through groove and cooperates with the tooth groove. The second gear adjustment mechanism is connected to the second gear to provide power for the second gear.

[0022] During installation, the second gear is positioned and installed on the die head through the second gear adjustment mechanism, so that the second gear only rotates without translation. In this case, the second gear adjustment mechanism drives the first gear to rotate, and the second gear drives the second movable baffle to translate through the tooth groove.

[0023] Further preferably, the first gear adjustment mechanism is a first transmission shaft; the second gear adjustment mechanism is a second transmission shaft;

[0024] The first transmission shaft is vertically fixedly connected to the middle part of the first gear;

[0025] The second transmission shaft is vertically fixedly connected to the middle portion of the second gear.

[0026] During installation, a brake device may be provided. When the positions of the first movable baffle plate and the second movable baffle plate need to be adjusted, the brake device (such as an additional clamping device) is released to allow the first transmission shaft and / or the second transmission shaft to rotate. When the distance between the two movable baffle plates is adjusted and normal operation is possible, the brake device is used to fix the first transmission shaft and the second transmission shaft to prevent the movable baffle plates from being improperly displaced during operation.

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

[0028] A through hole is provided at the corresponding position of the die head, so that the first transmission shaft and the second transmission shaft pass through it, and a sealing brake layer is provided between the transmission shaft and the die head. The transmission shaft and the sealing brake layer have an interference fit, which provides sufficient friction for the first transmission shaft to ensure the normal coating work. If the position of the movable baffle needs to be adjusted, a sufficiently large external force is used to twist the transmission shaft to drive the gear to rotate.

[0029] In some embodiments, the gasket body is provided with a through hole assembly for firmly mounting the gasket body on the die head via a bolt assembly.

[0030] In some embodiments, the first guide rail includes a first groove disposed on the gasket body and a first convex strip disposed on the first movable baffle, and the outer side of the first convex strip is an expanded structure;

[0031] The first convex strip is matched with the first concave groove.

[0032] Preferably, it also includes a first wiper element, which is arranged at one end of the first guide rail located on the inner side of the gasket body, one end of which is fixed to the gasket body, and the other end extends toward the first convex strip and is arranged in contact with the surface of the first convex strip.

[0033] Further preferably, the first wiping element is an elastic sheet, and there is a force between the first wiping element and the surface of the first convex strip.

[0034] Since the inner side of the gasket body is a slurry receiving chamber, the slurry portion can avoid contacting with the first convex strip of the first guide rail and easily adhere to the first convex strip during the process of adapting to pole pieces of different sizes. During the translation of the first movable baffle, especially during the process of moving outward to enlarge the gasket opening, the first wiper element can timely scrape off the slurry adhering to the first convex strip to prevent the slurry from being brought into the first groove, thereby avoiding the jamming of the first guide rail.

[0035] Preferably, the second guide rail includes a second groove provided on the gasket body and a second convex strip provided on the second movable baffle, and the outer side of the second convex strip is an expanded structure;

[0036] The second convex strip is matched with the second concave groove.

[0037] Further preferably, it also includes a second wiper element, which is arranged at one end of the second guide rail located on the inner side of the gasket body, one end of which is fixed on the gasket body, and the other end extends toward the second convex strip and is arranged in contact with the surface of the second convex strip.

[0038] Further preferably, the second wiping element is an elastic sheet, and there is an acting force between the second wiping element and the surface of the second convex strip.

[0039] The beneficial effects achieved by one or more embodiments of the present invention are as follows:

[0040] The movable baffle is movably mounted on the end of the arm of the gasket body through a guide rail, and can be reciprocated along the guide rail. According to the size of the pole piece to be coated, the spacing between the two movable baffles is adjusted, thereby adjusting the opening size of the gasket. When changing the size of the pole piece, there is no need to clean the gasket and the die head. It is only necessary to continuously adjust the two movable baffles through the first power mechanism and the second power mechanism to continuously and accurately adjust the opening size of the gasket to adapt to the coating size of the pole piece. Therefore, the use of this structural form can not only effectively improve work efficiency, but also effectively save the cost of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

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

[0043] Figure 2is a schematic structural diagram of a movable baffle according to an embodiment of the present invention;

[0044] Figure 3 is a working principle diagram of a movable baffle according to an embodiment of the present invention;

[0045] Figure 4 is a schematic diagram of the working of the electrode coating gasket according to an embodiment of the present invention;

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

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

[0048] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

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

[0050] like Figure 1 As shown, a pole piece coating gasket comprises a gasket body 2, a first movable baffle 1 and a second movable baffle;

[0051] The gasket body 1 comprises 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 plate 1 is movably mounted on the end of the first arm through the first guide rail, and the first power mechanism is connected to the first movable baffle plate 1;

[0053] A through groove is provided in the middle of the first movable baffle plate 1, and the through groove forms a first gear track 4. The through groove is arranged in the thickness direction thereof, and the through groove is parallel to the first guide rail 8, and the side of the through groove parallel to the first guide rail 8 is evenly distributed with tooth grooves;

[0054] like Figure 2 As shown, the first power mechanism includes a first gear 3 and a first gear adjustment mechanism 5. The first gear 3 is arranged in the through groove and cooperates with the tooth groove. The first gear adjustment mechanism 5 is connected to the first gear to provide power for the first gear 3. The first gear adjustment mechanism 5 is a first transmission shaft, and the first transmission shaft is vertically fixedly connected to the middle part of the first gear 3.

[0055] The second movable baffle is movably mounted on the end of the second arm through the second guide rail, and the second power mechanism is connected to the second movable baffle;

[0056] The first guide rail and the second guide rail are arranged in parallel and 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] A through groove is provided in the middle of the second movable baffle plate, the through groove runs through the thickness direction thereof, the through groove is parallel to the second guide rail, and the tooth grooves are evenly distributed on one side of the through groove parallel to the second guide rail;

[0060] The second power mechanism includes a second gear and a second gear adjustment mechanism. The second gear is arranged in the through groove and cooperates with the tooth groove. The second gear adjustment mechanism is connected to the second gear to provide power for the second gear. The second gear adjustment mechanism is a second transmission shaft, and the second transmission shaft is vertically fixedly connected to the middle part of the second gear.

[0061] like Figure 4 As shown, the gasket is fixed between the die upper plate 6 and the die lower plate 7, the first movable baffle plate 1, the second movable baffle plate, the gasket body, the die upper plate and the die lower plate form a slurry receiving chamber, and a slit outlet for the slurry is formed between the first movable baffle plate 1 and the second movable baffle plate. The thickness of the movable baffle plate is equal to that of the gasket body to ensure the sealing effect of the slurry and avoid leakage.

[0062] like Figure 3 and Figure 5 As shown, the movable baffle is movably mounted on the end of the arm of the gasket body through a guide rail, and can be reciprocated along the guide rail. According to the size of the pole piece to be coated, the spacing between the two movable baffles is adjusted, thereby adjusting the opening size of the gasket. When changing the size of the pole piece, there is no need to clean the gasket and the die head. It is only necessary to continuously adjust the two movable baffles through the first power mechanism and the second power mechanism to continuously and accurately adjust the opening size of the gasket to adapt to the coating size of the pole piece. Therefore, the use of this structural form can not only effectively improve work efficiency, but also effectively save the cost of the gasket.

[0063] During installation, the first gear 3 is positioned and installed on the die head through the first gear adjustment mechanism, so that the first gear only undergoes rotational motion without positional translation. In this case, the first gear adjustment mechanism drives the first gear to rotate, and the first gear drives the first movable baffle to translate through the tooth groove. The second gear is positioned and installed on the die head through the second gear adjustment mechanism, so that the second gear only undergoes rotational motion without positional translation. In this case, the second gear adjustment mechanism drives the first gear to rotate, and the second gear drives the second movable baffle to translate through the tooth groove.

[0064] A through hole is provided at the corresponding position of the die head, so that the first transmission shaft and the second transmission shaft pass through it, and a sealing brake layer is provided between the transmission shaft and the die head. The transmission shaft and the sealing brake layer have an interference fit, which provides sufficient friction for the first transmission shaft to ensure the normal coating work. If the position of the movable baffle needs to be adjusted, a sufficiently large external force is used to twist the transmission shaft to drive the gear to rotate.

[0065] A braking device may also be provided. When the positions of the first movable baffle plate 1 and the second movable baffle plate need to be adjusted, the braking device (such as an additional clamping device) is released to allow the first transmission shaft and / or the second transmission shaft to rotate. When the distance between the two movable baffle plates is adjusted and normal operation is possible, the braking device is used to fix the first transmission shaft and the second transmission shaft to prevent the movable baffle plates from being improperly displaced during operation.

[0066] The gasket body 2 is provided with a through hole assembly for firmly mounting the gasket body 2 on the die head through a bolt assembly.

[0067] like Figure 5 As shown, the first guide rail 8 includes a first groove provided on the gasket body and a first convex strip provided on the first movable baffle, the outer side of the first convex strip is an expanded structure; the first convex strip is provided in cooperation with the first groove. It also includes a first wiper element, which is provided at one end of the first guide rail located inside the gasket body, one end of which is fixed on the gasket body, and the other end extends toward the first convex strip and is provided in contact with the surface of the first convex strip. The first wiper element is an elastic sheet, and there is a force between the first wiper element and the surface of the first convex strip.

[0068] The second guide rail includes a second groove provided on the gasket body and a second convex strip provided on the second movable baffle, the outer side of the second convex strip is an expanded structure; the second convex strip is provided in cooperation with the second groove. The second wiper element is provided at one end of the second guide rail located inside the gasket body, one end of which is fixed on the gasket body, and the other end extends toward the second convex strip and is provided in contact with the surface of the second convex strip. The second wiper element is an elastic sheet, and there is a force between the second wiper element and the surface of the second convex strip.

[0069] Since the inner side of the gasket body is a slurry receiving chamber, the slurry portion can be avoided from contacting the convex strips of the guide rails and easily adheres to the convex strips during the process of adapting to pole pieces of different sizes. During the translation of the movable baffle, especially during the process of moving outward to enlarge the gasket opening, the provided scraping element can timely scrape off the slurry adhering to the convex strips to prevent the slurry from being brought into the grooves, thereby avoiding the jamming of the guide rails.

[0070] The ends of the first convex strip of the first guide rail and the second convex strip of the second guide rail are both enlarged, and the first groove and the second groove are both adaptively arranged, which can effectively ensure that the convex strip is firmly engaged and fixed in the groove to prevent the movable baffle from slipping off the gasket body.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pole piece coating gasket, characterized in that: It includes a gasket body, a first movable baffle plate and a second movable baffle plate; The gasket body includes a first arm and a second arm, and an opening is formed between the first arm and the second arm; The first movable baffle is movably mounted on the end of the first arm through 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 through the second guide rail, and the second power mechanism is connected to the second movable baffle; The first guide rail and the second guide rail 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.

2. The pole piece coating gasket according to claim 1, characterized in that: A through slot is provided in the middle of the first movable baffle plate, the through slot runs through the thickness direction thereof, the through slot is parallel to the first guide rail, and the side of the through slot parallel to the first guide rail is evenly distributed with tooth slots; The first power mechanism includes a first gear and a first gear adjustment mechanism. The first gear is arranged in the through groove and matched with the tooth groove. The first gear adjustment mechanism is connected to the first gear to provide power for the first gear.

3. The pole piece coating gasket according to claim 2, characterized in that: A through slot is provided in the middle of the second movable baffle plate, the through slot runs through the thickness direction thereof, the through slot is parallel to the second guide rail, and teeth are evenly distributed on one side of the through slot parallel to the second guide rail; The second power mechanism includes a second gear and a second gear adjustment mechanism. The second gear is arranged in the through groove and cooperates with the tooth groove. The second gear adjustment mechanism is connected to the second gear to provide power for the second gear.

4. The pole piece coating gasket according to claim 3, characterized in that: The first gear adjustment mechanism is the first transmission shaft; the second gear adjustment mechanism is the second transmission shaft; The first transmission shaft is vertically fixedly connected to the middle part of the first gear; The second transmission shaft is vertically fixedly connected to the middle part of the second gear; Preferably, the first transmission shaft and the second transmission shaft are both prismatic structures.

5. The pole piece coating gasket according to claim 1, characterized in that: A through hole component is arranged on the gasket body.

6. The pole piece coating gasket according to claim 3, characterized in that: The first guide rail includes a first groove arranged on the gasket body and a first convex strip arranged on the first movable baffle plate, and the outer side of the first convex strip is an expanded structure; The first convex strip is matched with the first concave groove.

7. The pole piece coating gasket according to claim 6, characterized in that: It also includes a first wiper element, which is arranged at one end of the first guide rail located inside the gasket body, one end of which is fixed to the gasket body, and the other end of which extends toward the first convex strip and is arranged in contact with the surface of the first convex strip; Preferably, the first wiping element is an elastic sheet, and there is a force between the first wiping element and the surface of the first convex strip.

8. The pole piece coating gasket according to claim 3, characterized in that: The second guide rail includes 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; The second convex strip is matched with the second concave groove.

9. The pole piece coating gasket according to claim 8, characterized in that: It also includes a second wiper element, which is arranged at one end of the second guide rail located inside the gasket body, one end of which is fixed on the gasket body, and the other end extends toward the second convex strip and is arranged in contact with the surface of the second convex strip.

10. The pole piece coating gasket according to claim 9, characterized in that: The second wiping element is an elastic sheet, and there is an acting force between the second wiping element and the surface of the second convex strip.

Images