Pole piece deviation rectifying assembly and pole piece coating machine

Abstract

The utility model discloses a pole piece deviation rectifying component and pole piece coater, pole piece deviation rectifying component includes U-shaped deviation rectifying sensor and its support that fixes, U-shaped deviation rectifying sensor has two parallel detection arm, the support includes the two parallel guide rod that is parallel to the detection arm, and the guide rod is parallel to the detection arm. The two guide rods are located on the two sides of the U-shaped deviation correction sensor respectively, an angle is formed between the plane where the axes of the two guide rods are located and the plane where the two detection arms are located, and gaps are formed between the projections of the guide rods on the plane where the two detection arms are located and at least one detection arm. At least one plane is parallel to the plane where the axes of the two guide rods are located, intersects with the guide rods and penetrates through the space between the two supporting arms. When the pole piece coating machine passes through the tape, the current collector and the pole piece pass through the gap between the guide rod and the detection arms, and are supported by the guide rod and cannot be separated from the two detection arms when no tension is established, so that the current collector and the pole piece are prevented from being blocked by the detection arms to break the tape when the tension is established.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating equipment, and more specifically, relates to a pole piece deviation correction assembly and a pole piece coater. Background Art

[0002] Since the pole piece coating has high precision requirements, current pole piece coating equipment is equipped with devices for correcting the deviation of the current collector and the pole piece, including U-shaped deviation correction sensors for detecting on the current collector and the conveying path.

[0003] However, it is found in actual use that the U-shaped deviation correction sensors arranged on the horizontal conveying paths of the current collector and the pole piece may interfere with the current collector and the pole piece during the process of establishing tension, resulting in damage to the current collector, the pole piece and tape breakage. This is because there is no tension established during the threading process, and the current collector and the pole piece are in a relaxed state, and are easily separated from the detection area of the detection arm located below, and then are blocked by the detection arm during the process of returning to the detection area after being tensioned, which will greatly increase the probability of tape breakage and significantly affect the production efficiency of the pole piece. To avoid this problem, currently, operators usually need to fully check the state of the pole piece before establishing tension, but manual inspection often has oversights, and the threading path is usually relatively complex, and a complete inspection of the state of the pole piece still consumes a lot of time.

[0004] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is to solve one of the above-mentioned problems in the prior art, and provide a pole piece deviation correction assembly. By providing guide rods for supporting and guiding the sliding of the U-shaped deviation correction sensor, while installing the U-shaped deviation correction sensor, it is possible to support the current collector and the pole piece passing through the U-shaped deviation correction sensor, and avoid the current collector and the pole piece from separating from the detection area of the U-shaped deviation correction sensor due to relaxation during the threading and debugging processes, and then colliding with the U-shaped deviation correction sensor during tensioning, resulting in tape breakage.

[0006] The present utility model also provides a pole piece coater with a pole piece deviation correction assembly.

[0007] To achieve the above object, in a first aspect of the present utility model, a pole piece deviation correction assembly is provided, which includes a deviation correction sensor and a bracket for supporting the deviation correction sensor. The bracket includes two guide rods arranged in parallel, and the deviation correction sensor is arranged between the two guide rods;

[0008] The deviation rectifying sensor is generally U-shaped and has two detection arms arranged parallel to the guide rods. There is an angle between the plane where the axes of the two guide rods are located and the plane where the two detection arms are located, and a gap is formed between the projection of the guide rods on the plane where the two detection arms are located and at least one detection arm, so that there is at least one plane that simultaneously satisfies being parallel to the plane where the axes of the two guide rods are located, intersecting with the guide rods and passing through between the two support arms.

[0009] In the above solution, by defining the relative position between the detection arm and the guide rod, the guide rod can support the current collector and the pole piece passing through between the detection arms, effectively avoiding the current collector and the pole piece from leaving the detection area between the two detection arms, and preventing the belt from breaking due to collision with the detection arm when establishing or adjusting the tension.

[0010] Furthermore, the bracket further includes a connecting member which is slidably connected to the two guide rods respectively, and the sensor is fixed on the connecting member.

[0011] Furthermore, the connecting member includes a sliding part and a mounting part. Both ends of the sliding part are respectively provided with sliding holes for cooperating with the guide rods. The mounting part is located between the two sliding holes and protrudes outward from one side of the sliding part in the direction perpendicular to the plane where the axes of the two guide rods are located. The sensor is fixed on the mounting part.

[0012] In the above solution, the flexible adjustment of the installation position of the U-shaped deviation rectifying sensor is realized through the connecting member, which can meet the production requirements of different specifications of pole pieces.

[0013] Furthermore, the bracket further includes fixing members which are arranged in pairs at intervals. Both ends of the fixing members are respectively connected to the two guide rods to form a rectangular support frame, and the deviation rectifying sensor is arranged inside the rectangular support frame.

[0014] By setting the fixing members, on the one hand, the stability of the bracket is improved, and at the same time, the adjustment range of the U-shaped deviation rectifying sensor is limited to avoid the U-shaped deviation rectifying sensor from being over-adjusted and colliding with other devices.

[0015] Furthermore, the bracket further includes a support member which is connected to the guide rods on both sides of the U-shaped deviation rectifying sensor and is arranged on the side of the guide rods facing the gap. The opening of the U-shaped deviation rectifying sensor faces the direction where the support member is located.

[0016] Furthermore, the support member includes a support part and a positioning part. The support part covers the side of the guide rod facing the gap. The positioning part is connected to the support part and is arranged on the side of the support part facing the guide rod. The positioning part is detachably connected to the guide rods on both sides of the U-shaped deviation rectifying sensor.

[0017] Furthermore, part of the support part is located in the gap between the guide rod and the detection arm, and the surface has an avoidance groove for avoiding the detection arm. The avoidance groove is located on the connection line between the two detection arms of the U-shaped sensor.

[0018] In the above solution, the support member can better support the current collector and the electrode, and due to the existence of the avoidance groove, it will not affect the normal operation of the correction sensor.

[0019] Furthermore, at least one of the two guiding rods is a magnetic bar.

[0020] The second aspect of the utility model provides a pole piece coating machine, comprising a plurality of rollers, the plurality of rollers forming a conveying path, a pole piece correction assembly being fixedly connected to the pole piece coating machine via a bracket, and being arranged in a horizontal conveying section of the conveying path, the horizontal conveying section passing through the gap between the two detection arms of the correction sensor from above the guide rod.

[0021] Furthermore, the pole piece coating machine also includes a frame, the pole piece correction assembly fixing part is connected to the end of the guide rod, the fixing part is also provided with a fixing rod, the fixing rod is arranged on the other side of the fixing part opposite to the guide rod, and the fixing rod is hinged to the frame.

[0022] In the above scheme, the fixing rod and the frame are hinged, so that the pole piece correction assembly can be adjusted in angle according to actual conditions, thereby improving the flexibility of the pole piece correction assembly.

[0023] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0024] 1. The pole piece correction component can prevent the current collector and pole piece from escaping from the detection area of the U-shaped correction sensor when the coating machine is threading the belt. When establishing tension, the current collector and pole piece will not be blocked by the detection arm of the U-shaped sensor. Originally, the establishment of coating tension may cause 2-3 belt breaks every day. After the improvement, the belt breaks caused by the interference of the detection arm have not occurred again, and the frequency of belt breaks has been greatly reduced.

[0025] 2. The U-shaped correction sensor is fixed on the connecting piece. Since the connecting piece can slide on the guide rod, the U-shaped correction sensor can adjust its position according to the actual detection needs. Compared with the traditional single-arm supported sensor, the probability of displacement due to collision is reduced and the stability is higher.

[0026] 3. The connector has a protruding mounting portion, through which the U-shaped deviation correction sensor is connected to the connector. While maintaining the support of the guide rod on the current collector and the pole piece, the U-shaped deviation correction sensor is staggered, thus reserving a larger area for the passage of the current collector and the pole piece.

[0027] 4. One of the guide rods is set as a magnetic bar, which not only supports the current collector and the pole piece, but also provides a demagnetization function for the pole piece correction assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a schematic structural diagram of the pole piece deviation rectifying component according to the first embodiment of the present utility model;

[0029] Figure 2 is Figure 1 a cross-sectional view taken along line A-A of the pole piece deviation rectifying component shown;

[0030] Figure 3 It is a schematic structural diagram of the pole piece deviation rectifying component according to the second embodiment of the present utility model;

[0031] Figure 4 It is a schematic structural diagram of the pole piece deviation rectifying component with a support member in the second embodiment of the present utility model;

[0032] Figure 5 is Figure 4 a cross-sectional view taken along line B-B of the pole piece deviation rectifying component shown;

[0033] Figure 6 is Figure 4 a first schematic structural diagram of the support member in the pole piece deviation rectifying component shown;

[0034] Figure 7 is Figure 4 a second schematic structural diagram of the support member in the pole piece deviation rectifying component shown;

[0035] Figure 8 is Figure 4 a third schematic structural diagram of the support member in the pole piece deviation rectifying component shown;

[0036] Figure 9 is Figure 8 a side view of the pole piece deviation rectifying component along the direction of the guiding rod;

[0037] Figure 10 It is a schematic structural diagram of the pole piece deviation rectifying component according to the fifth embodiment of the present utility model.

[0038] In the figure: 1. U-shaped deviation rectifying sensor; 2. Guiding rod; 3. Connecting piece; 31. Mounting part; 32. Sliding part; 4. Fixing piece; 41. Fixing rod; 5. Support member; 51. Support part; 52. Positioning part; 521. First positioning unit; 522. Second positioning unit. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The utility model provides a pole piece deviation correction component, such as Figures 1 to 10 As shown, it includes a correction sensor and a bracket for supporting the correction sensor, characterized in that the bracket includes two guide rods 2 arranged parallel to the detection arm, and the correction sensor is arranged between the two guide rods 2;

[0043] The correction sensor is U-shaped as a whole, and has two detection arms arranged parallel to the guide rod 2. There is an angle between the plane where the axes of the two guide rods 2 are located and the plane where the two detection arms are located, and a gap is formed between the projection of the guide rod 2 on the plane where the two detection arms are located and at least one detection arm, so that at least one plane is parallel to the plane where the axes of the two guide rods 2 are located, intersects with the guide rod 2 and passes between the two support arms.

[0044] In the above scheme, while supporting the U-shaped deflection correction sensor 1, the bracket can also support and hold the current collector and the electrode passing through the detection area of the U-shaped deflection correction sensor 1. When no tension is established, the current collector and the electrode are supported by the bracket and will not leave the detection area. When tension is established, they will not be interfered by the detection arm, which effectively avoids damage to the current collector and the electrode and the occurrence of belt breakage.

[0045] The pole piece correction assembly is fixed by a bracket. When normally used, in order to provide more space for the current collector and the pole piece, the plane where the axis of the guide rod 2 is located is usually set to be perpendicular to the plane where the detection arm is located; in other special cases, the angle between the two can also be set according to the actual support needs and the passage path of the current collector and the pole piece. In the following embodiments, for the sake of ease of description, it is assumed that the two are perpendicular to each other unless otherwise specified.

[0046] In addition, it is easy for those skilled in the art to understand that the number of U-shaped deviation rectifying sensors 1 can be adjusted according to actual usage requirements. Multiple U-shaped deviation rectifying sensors 1 can be arranged on the same bracket or on different brackets respectively; in the following embodiments, the U-shaped deviation rectifying sensors 1 are default to be arranged in pairs, located on the same bracket and on both sides of the current collector or the pole piece respectively. Since the two U-shaped deviation rectifying sensors 1 have the same setting method but only different directions, only the setting method of one of them will be described in the embodiments, which does not mean that only one U-shaped deviation rectifying sensor 1 is set in the following embodiments.

[0047] Next, in combination with the drawings, the technical solutions of the present utility model will be further described with specific embodiments.

[0048] Embodiment 1

[0049] As an embodiment of the present utility model, this embodiment provides a pole piece deviation rectifying assembly, and the projection of the guiding rod 2 on the plane where the two detection arms are located coincides with one of the detection arms.

[0050] In this embodiment, as Figure 1 shown, the bracket includes two guiding rods 2, the two guiding rods 2 are respectively located on both sides of the U-shaped deviation rectifying sensor 1, the U-shaped deviation rectifying sensor 1 has two detection arms arranged parallel to the guiding rods 2, and a detection area is formed between the two detection arms; the U-shaped deviation rectifying sensor 1 is connected to the two guiding rods 2 and is located between the two guiding rods 2 when installed in place, and the projection of the guiding rod 2 on the plane where the detection arm is located partially covers the detection area, so as to support the current collector and the pole piece passing through the detection area when the tension is insufficient or the tension is not established, and avoid the current collector and the pole piece colliding with the detection arm and being damaged or the belt breaking after leaving the detection area under the action of tension.

[0051] Specifically, connecting pieces 3 are further arranged on the two guiding rods 2, the connecting pieces 3 are arranged perpendicular to the two guiding rods 2 and are respectively connected to the two guiding rods 2, and the U-shaped deviation rectifying sensor 1 is fixed on the connecting piece 3; define the opposite side of the two detection arms as the detection surface, as Figure 2 shown, the guiding rod 2 protrudes from the detection surface of the lower detection arm 11, and a gap for the current collector and the pole piece to pass through is formed between the protruding side and the detection surface of the other detection arm 11.

[0052] In order to better support the current collector and the pole piece and at the same time reduce the damage to the current collector and the pole piece, in this embodiment, the radial cross-section of the guiding rod 2 is circular, that is, the guiding rod 2 is a cylindrical rod; in other embodiments, the radial cross-section of the guiding rod 2 can also be elliptical or a polygon with rounded chamfers; in the polygon with rounded chamfers, the included angle between adjacent sides is preferably a right angle or an obtuse angle.

[0053] Furthermore, as Figure 2As shown in the figure, the connecting member 3 is integrally T-shaped and has a mounting portion 31 protruding in a direction perpendicular to the plane where the axis of the guide rod 2 is located. The U-shaped deviation correction sensor 1 is fixed on the mounting portion 31. For any style of U-shaped deviation correction sensor 1, offset setting can be achieved, ensuring a larger gap between the projection of the guide rod 2 and the detection surface, and avoiding rubbing and collision between the current collector and the pole piece and the guide rod 2 or the detection arm during normal transportation.

[0054] Furthermore, the connecting member 3 also has a mounting groove provided in a direction perpendicular to the plane where the axes of the two guide rods 2 are located. The U-shaped deviation correction sensor 1 is installed in the mounting groove, and the position of the U-shaped deviation correction sensor 1 in the direction perpendicular to the plane where the axes of the two guide rods 2 are located can be adjusted through the mounting groove, further improving the adaptability of the connecting member 3 to sensors of different shapes and specifications.

[0055] During actual use, when producing pole pieces of different sizes and specifications, the position of the deviation correction sensor needs to be adjusted accordingly. Therefore, as a specific embodiment of the present invention, the connecting member 3 further includes a sliding portion 32. The sliding portion 32 has a sliding hole for two guide rods 2 to pass through, and is slidably arranged along the guide rod 2 through the sliding hole. The mounting portion 31 is connected to the sliding portion 32 and protrudes outward from the side of the sliding portion 32. The sliding portion 32 and the mounting portion 31 together form a T-shaped structure; in order to improve the sliding smoothness, a sliding bearing cooperating with the guide rod 2 can also be provided in the sliding hole.

[0056] Furthermore, the bracket further includes a fixing member 4, as Figure 3 shown, the fixing member 4 is connected to the end of the guide rod 2, so that the guide rod 2 and the fixing member 4 together form a rectangular support frame, and the connecting member 3 slides between the two fixing members 4.

[0057] Specifically, the fixing members 4 are arranged in pairs at intervals and are respectively connected to the two guide rods 2 at both ends to form a rectangular support frame; the connecting member 3 slides between the two fixing members 4. On the one hand, the sliding range of the connecting member 3 is limited, and on the other hand, the structural stability of the bracket is improved; the guide rod 2 can be set to be rotatable relative to the fixing member 4 according to actual situations, or remain relatively stationary with the fixing member 4. In this embodiment, the guide rod 2 and the fixing member 4 are fixedly connected and remain relatively stationary, further improving the stability and firmness of the bracket; for this reason, the fixing member 4 can lock the guide rod 2 by setting a locking unit. In other embodiments, the radial cross-sectional shape of the guide rod 2 can also be directly adjusted as long as the radial cross-sectional shape of the guide rod 2 has a finite number of symmetry axes.

[0058] Embodiment 2

[0059] As another embodiment of the present invention, this embodiment provides a pole piece deviation correction assembly, and the following further improvements are made on the basis of Embodiment 1.

[0060] In this embodiment, the bracket further includes a support member 5 detachably connected to the guide rod 2. As a specific implementation manner of this embodiment, the support member 5 is made of a transparent material, such as Figure 4 and Figure 5 shown, when the support member 5 is installed in place, the end portion is located at the gap between the guide rod 2 and the detection arm, and a gap for the current collector and the pole piece to pass through is also formed between the support member 5 and the detection arm.

[0061] In this embodiment, the support member 5 includes a support portion 51 and a positioning portion 52. The support portion 51 is an integral support plate. As Figures 6 to 8 shown, the support plate can be set as a flat plate, or a bent plate that is concave or convex inward or outward according to actual use needs. The positioning portion 52 is connected to the support portion 51 and protrudes toward the side close to the guide rod 2, and is connected to the guide rod 2 through the positioning portion 52. Specifically, in this embodiment, the positioning portion 52 includes a first positioning unit 521. The two sides of the support portion 51 are bent toward the direction close to the guide rod 2 to form the first positioning unit 521. When the support member 5 is installed in place, the first positioning unit 521 fits against the surfaces of the two guide rods 2 facing away from each other to realize the fixation of the support member 5. In order to further improve the positioning effect, as Figure 9 shown, the positioning portion 52 further includes a second positioning unit 522. When the support member 5 is installed in place, both the second positioning unit 522 and the first positioning unit 521 are in contact with the guide rod 2.

[0062] Furthermore, considering that the working principles of different types of sensors are different, an avoidance groove is also provided in the middle of the support portion 51. When the support member 5 is installed in place, the avoidance groove is directly opposite to the two support arms.

[0063] Embodiment III

[0064] As another embodiment of the present invention, this embodiment provides a pole piece deviation correction assembly, which is further improved on the basis of Embodiment I as follows.

[0065] In this embodiment, the connecting member 3 is made of non-ferromagnetic materials such as aluminum, copper, zinc and their alloys, and one of the two guide rods 2 is set as a magnetic rod, which on the one hand ensures the normal operation of the pole piece deviation correction assembly, and on the other hand adds a demagnetization function to the pole piece deviation correction assembly, which can better ensure the quality of the pole piece.

[0066] Specifically, considering that after the magnetic rod is used for a long time, the magnetic impurities adsorbed on the surface may damage the current collector and the pole piece. In order to facilitate the collection and cleaning of magnetic substances, in this embodiment, one of the guide rods 2 is set as an electromagnet rod. When the electromagnet rod needs to be cleaned, the electromagnet rod is powered off, and the operator can directly wipe the surface of the electromagnet rod to achieve rapid cleaning.

[0067] In addition, this embodiment can also be combined with embodiment 2. In this case, the adsorbed magnetic material is attached to the surface of the support 5. When cleaning, the support 5 can be directly removed for cleaning. Since the magnetic material is like a magnetic rod after the support 5 is removed, it is easier to clean after losing the adsorption effect, which reduces the cleaning difficulty for the operator.

[0068] The second aspect of the utility model provides a pole piece coating machine having the pole piece deviation correction assembly described in the above embodiment, which is specifically as follows.

[0069] Embodiment 4

[0070] As another embodiment of the present utility model, this embodiment provides a pole piece coating machine having a pole piece correction assembly as described in the first embodiment.

[0071] In this embodiment, the electrode coating machine includes a frame and a roller group for conveying the current collector and the electrode, the roller group forms a conveying path passing through each roller group in sequence, and the bracket of the electrode correction assembly is connected to the frame so that the electrode correction sensor is located in the horizontal conveying section of the conveying path, and the horizontal conveying section passes through the gap between the guide rod 2 and the detection arm.

[0072] Specifically, the ends of the two guide rods 2 are connected to the frame, and the pole piece correction assembly is provided with two U-shaped correction sensors 1 arranged relatively to each other. The plane where the detection arms of the two U-shaped correction sensors 1 are located is vertical, and the plane where the axes of the two guide rods 2 making the two U-shaped correction sensors 1 are located is horizontal. Therefore, when threading the belt, the current collector and the pole piece passing through the gap between the guide rod 2 and the support arm will be supported by the guide rod 2, and will not directly leave the detection area between the detection arms located below under the action of gravity, and will not collide with the detection arm when establishing tension, thereby avoiding damage to the current collector and the pole piece and the occurrence of belt breakage.

[0073] In addition, the present embodiment can also be combined with the pole piece correction assembly described in Embodiment 2 and Embodiment 3. When combined with Embodiment 4, since the bracket is provided with a fixing member 4, the guide rod 2 is doubly fixed by the fixing member 4 and the frame, which further reduces the probability of movement and deformation of the guide rod 2 and improves the stability of the bracket. In order to achieve this purpose, preferably, there is a certain distance between the fixing member 4 and the frame.

[0074] Embodiment 5

[0075] As another embodiment of the utility model, this embodiment provides a pole piece coating machine of a pole piece correction assembly, which is specifically described as follows.

[0076] This embodiment makes further improvements on the basis of the fourth embodiment; specifically, Figure 10As shown, in the pole piece deviation rectifying assembly, the fixing member 4 is connected to the end of the guiding rod 2. A fixing rod 41 is provided on the fixing member 4. The fixing rod 41 is located on the other side of the fixing member 4 opposite to the guiding rod 2 and is hinged to the frame of the pole piece coater.

[0077] In the above solution, the adjustment of the setting angle of the pole piece deviation rectifying assembly is realized, which can make adaptive adjustments according to the change of the conveying path, can better perform deviation rectifying detection, and will not hinder the normal conveying of the current collector and the pole piece while supporting the current collector and the pole piece.

[0078] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent can make some changes or modifications to equivalent embodiments by using the technical content prompted above within the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. A pole piece deviation rectifying component, comprising a deviation rectifying sensor and a bracket, characterized in that, The bracket includes two guide rods (2) arranged in parallel, and the deviation rectifying sensor is disposed between the two guide rods (2). The deviation rectifying sensor is integrally U-shaped and has two detection arms arranged parallel to the guide rods (2). There is an angle between the plane where the axes of the two guide rods (2) are located and the plane where the two detection arms are located, and a gap is formed between the projection of the guide rods (2) on the plane where the two detection arms are located and at least one detection arm, so that there is at least one plane that simultaneously satisfies being parallel to the plane where the axes of the two guide rods (2) are located, intersecting the guide rods (2), and passing through between the two support arms.

2. The pole piece deviation rectifying component according to claim 1, characterized in that, The bracket further includes a connecting member (3). The connecting member (3) is slidably connected to the two guide rods (2) respectively, and the sensor is arranged on the connecting member (3).

3. The pole piece deviation rectifying component according to claim 2, characterized in that, The connecting member (3) includes a sliding portion (32) and a mounting portion (31). Both ends of the sliding portion (32) are respectively provided with sliding holes that cooperate with the guide rods (2). The mounting portion (31) is located between the two sliding holes and protrudes outward from one side of the sliding portion (32) in a direction perpendicular to the plane where the axes of the two guide rods (2) are located. The sensor is fixed on the mounting portion (31).

4. The pole piece deviation correction assembly according to claim 1, characterized in that, The bracket further includes fixing members (4). The fixing members (4) are arranged in pairs at intervals. Both ends are respectively connected to the two guide rods (2) to form a rectangular support frame, and the deviation rectifying sensor is arranged inside the rectangular support frame.

5. The pole piece deviation rectifying component according to any one of claims 1-4, characterized in that, The bracket further includes a support member (5). The support member (5) is connected to the guide rods (2) on both sides of the U-shaped deviation rectifying sensor (1) and is arranged on the side of the guide rods (2) facing the gap. The opening of the U-shaped deviation rectifying sensor (1) is arranged facing the direction where the support member (5) is located.

6. The pole piece deviation rectifying component according to claim 5, wherein The support member (5) includes a support portion (51) and a positioning portion (52). The support portion (51) covers the side of the guide rod (2) facing the gap. The positioning portion (52) is connected to the support portion (51) and is arranged on the side of the support portion (51) facing the guide rod (2). The positioning portion (52) is detachably connected to the guide rods (2) on both sides of the U-shaped deviation rectifying sensor (1).

7. The pole piece deviation rectifying component according to claim 6, wherein Part of the support portion (51) is located in the gap between the guide rod (2) and the detection arm, and the surface has an avoidance groove for avoiding the detection arm. The avoidance groove is located on the connection line between the two detection arms of the U-shaped deviation rectifying sensor (1).

8. The pole piece deviation rectifying component according to claim 1, wherein At least one of the two guide rods (2) is a magnetic rod.

9. A pole piece coater, comprising a plurality of rollers, and the plurality of rollers form a pole piece conveying path, characterized in that, There is a pole piece deviation rectifying assembly as described in any one of claims 1-8. The pole piece deviation rectifying assembly is fixedly connected to the pole piece coater through a bracket and is arranged on the horizontal conveying section of the pole piece conveying path. The horizontal conveying section passes through the gap between the two detection arms of the deviation rectifying sensor from above the guide rods (2).

10. The pole piece coater according to claim 9, characterized in that, It further includes a frame. The fixing member (4) of the pole piece deviation rectifying assembly is connected to the end of the guide rod (2). A fixing rod (41) is further provided on the fixing member (4). The fixing rod (41) is arranged on the other side of the fixing member (4) opposite to the guide rod (2), and the fixing rod (41) is hinged to the frame.

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