Real-time deviation rectifying and positioning mechanism in winding process

Abstract

The utility model discloses a real-time deviation rectifying and positioning mechanism in the winding process in the field of deviation rectifying and positioning mechanisms, which comprises a base and two movable blocks capable of moving forwards, a guide plate used for conveying pole pieces is arranged above the base, a piece conveying table capable of moving towards the guide plate is arranged between the two movable blocks, and when the movable blocks move towards the base, the piece conveying table can move towards the guide plate. The piece feeding table moves synchronously with the guide plate, the movable blocks are provided with deviation rectifying inductors used for detecting the position of a pole piece on the piece feeding table, a cross rod penetrating through the interior of the piece feeding table is connected between the two movable blocks, one end of the base is provided with a deviation rectifying assembly used for controlling the guide plate to move left and right, and the piece feeding table is provided with a rotatable pole piece passing roller. And a pressing assembly capable of moving up and down is also arranged above the sheet feeding table. When the pole piece is wound, the pole piece is further pressed through the downward pressing assembly, the pole piece is prevented from moving along with the pole piece, the deviation distance of the pole piece is detected through the deviation correcting sensor, then the deviation correcting assembly controls left-right movement for deviation correcting, and the pole piece winding effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deviation rectifying and positioning mechanisms, in particular to a real-time deviation rectifying and positioning mechanism during the winding process. Background Technique

[0002] Battery electrode sheets are important components of batteries. They directly participate in the electrochemical reaction process of the battery and are key components for the battery to store and release electrical energy. In modern battery systems such as lithium-ion batteries, the electrode sheets usually include a positive electrode sheet and a negative electrode sheet.

[0003] During the processing, the position of the electrode sheet is prone to deviation when being wound. However, currently, the position of the electrode sheet cannot be adjusted to correct the deviation distance during winding, which affects the winding effect of the electrode sheet. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art solutions, the utility model provides a real-time deviation rectifying and positioning mechanism during the winding process, which can effectively solve the technical problem that the position of the electrode sheet cannot be adjusted during winding currently.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] The real-time deviation rectifying and positioning mechanism during the winding process includes a base and two movable blocks that can move forward. A guide plate for conveying the electrode sheet is arranged above the base. A sheet feeding table that can move towards the guide plate is installed between the two movable blocks. When the movable blocks move towards the base, the sheet feeding table moves towards the guide plate synchronously.

[0007] The movable block is equipped with a deviation rectifying inductor for detecting the position of the electrode sheet on the sheet feeding table. A cross bar passing through the inside of the sheet feeding table is connected between the two movable blocks, enabling the sheet feeding table to move left and right along the cross bar. One end of the base is installed with a deviation rectifying component for controlling the left and right movement of the guide plate. When the guide plate moves left and right, the sheet feeding table moves in the same direction as the guide plate.

[0008] The sheet feeding table is installed with a rotatable electrode sheet passing roller. A downward pressing component that can move up and down is also arranged above the sheet feeding table. The downward pressing component includes a downward pressing positioning piece and a mounting seat. The downward pressing positioning piece is connected to one end of the mounting seat through a fourth linear guide rail. The mounting seat is installed with a lower deviation rectifying roller that can press down on the electrode sheet passing roller. When the lower deviation rectifying roller is connected to the electrode sheet passing roller through the electrode sheet, the lower deviation rectifying roller can move left and right along with the electrode sheet passing roller through the fourth linear guide rail.

[0009] Further, one end of the base is connected to the movable block through a first linear guide rail, enabling the movable block to move towards the base along the first linear guide rail.

[0010] Further, the base and the guide plate are connected by a second linear guide rail, enabling the guide plate to move left and right along the second linear guide rail.

[0011] Further, one end of the guide plate and the film feeding table are connected by a third linear guide rail, enabling the film feeding table to move towards the guide plate along the third linear guide rail. A first telescopic cylinder is also connected between the guide plate and the film feeding table, and the first telescopic cylinder is used to control the movement of the film feeding table on the third linear guide rail.

[0012] Further, the deviation rectifying assembly is composed of a deviation rectifying motor, a deviation rectifying lead screw, and a deviation rectifying connecting block. The deviation rectifying connecting block is connected to the bottom of the guide plate. One end of the deviation rectifying lead screw is connected to the deviation rectifying motor, and the other end passes through the deviation rectifying connecting block and is fixed. The deviation rectifying lead screw drives the deviation rectifying connecting block to move left and right through the deviation rectifying motor to achieve the left and right deviation rectifying movement of the guide plate.

[0013] Further, both the guide plate and the film feeding table are provided with air holes for adsorbing the pole piece, and joints communicating with the corresponding air holes are provided at one end of both the guide plate and the film feeding table.

[0014] Further, a second telescopic cylinder is installed on the top of the downward pressing and positioning member, and the second telescopic cylinder is used to control the downward pressing assembly to move towards the film feeding table.

[0015] Further, two reset springs for resetting the lower deviation rectifying roller are connected between the downward pressing and positioning member and the mounting seat. The two reset springs are symmetrically distributed. When the lower deviation rectifying roller moves away from the pole piece during overfeeding, the reset springs reset the lower deviation rectifying roller to the center.

[0016] Further, a positioning pin for inserting and positioning the film feeding table is connected to one end of the mounting seat, and the film feeding table is configured with a corresponding positioning hole for inserting the positioning pin.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] When the pole piece is wound in the present utility model, the downward pressing assembly further compresses the pole piece to prevent the pole piece from moving along. At the same time, the deviation rectifying inductor detects the deviation distance of the pole piece, and then the deviation rectifying assembly controls the left and right movement for deviation rectification, improving the effect of pole piece winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic front - end structure diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 is a schematic rear - end structure diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 3 is a schematic diagram of the structure with a guide plate installed on the base of an embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the removal of the guide plate structure on the base of the embodiment of the present utility model;

[0023] Figure 5 For the embodiment of the present utility model Figure 4 Enlarged schematic diagram of the structure of part A in the figure;

[0024] Figure 6 Schematic diagram of the structure of the pressing-down assembly of the embodiment of the present utility model;

[0025] Reference numerals in the figure:

[0026] 1 - Base, 2 - Movable block, 3 - Guide plate, 4 - Film feeding table, 5 - Deviation rectifying inductor, 6 - Cross bar, 7 - Deviation rectifying assembly, 8 - Pole piece over roller, 9 - Pressing-down assembly, 10 - First linear guide rail, 11 - Second linear guide rail, 12 - Third linear guide rail, 13 - First telescopic cylinder, 14 - Air hole, 15 - Connector, 16 - Second telescopic cylinder, 17 - Positioning jack, 18 - Positioning plate;

[0027] 701 - Deviation rectifying motor, 702 - Deviation rectifying lead screw, 703 - Deviation rectifying connection block;

[0028] 901 - Pressing-down positioning member, 902 - Mounting seat, 903 - Fourth linear guide rail, 904 - Lower deviation rectifying roller, 905 - Return spring, 906 - Positioning pin. Specific implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0030] As Figures 1-6 shown, the present utility model provides a real-time deviation rectifying and positioning mechanism for the winding process, mainly used for detecting and correcting the position of the pole piece during pole piece winding. The pole piece is put in from one end of the guide plate 3 of the mechanism, and the pole piece is transferred as the film feeding table 5 moves forward. At this time, the position of the pole piece is detected by the deviation rectifying inductor 5. After the deviation rectifying inductor 5 feeds back the detected result, the deviation rectifying assembly 7 synchronously adjusts the positions of the guide plate 3 and the film feeding table 4 to the left or right according to the result fed back by the deviation rectifying inductor 5, realizing the deviation rectification of the position of the pole piece. In order to better detect the position of the pole piece, the deviation rectifying inductor 5 adopts an infrared deviation rectifying inductor, and realizes the monitoring and control of the position of the object by using the characteristics of infrared rays.

[0031] The structure of this mechanism mainly includes a base 1 and two movable blocks 2 that can move towards one end of the base 1. Above the base 1, there is a guide plate 3 for conveying the electrode sheet. A sheet feeding table 4 that can move towards one end of the guide plate 3 is installed between the two movable blocks 2. When the movable blocks 2 move towards the base 1, the sheet feeding table 4 synchronously moves towards one end of the guide plate 3. When placing the electrode sheet, the electrode sheet is placed from one end of the guide plate 3. When the sheet feeding table 4 moves towards one end of the guide plate 3, after the electrode sheet is transferred, it is conveyed to one end of the sheet feeding table 4. It should be added that when placing the electrode sheet on the guide plate 3, a positioning plate 18 with protrusions is additionally provided on the guide plate 3 to facilitate positioning the direction of the electrode sheet. The electrode sheet is placed against one side of the positioning plate 18 to ensure that the angle and direction of the electrode sheet do not change during conveyance.

[0032] For the convenience of movement, one end of the base 1 is connected to the movable block 2 through a first linear guide rail 10, enabling the movable block 2 to move towards the base 1 along the first linear guide rail 10. Additionally, the base 1 is connected to the guide plate 3 through a second linear guide rail 11, enabling the guide plate 3 to move left and right through the second linear guide rail 11. One end of the guide plate 3 is connected to the sheet feeding table 4 through a third linear guide rail 12, enabling the sheet feeding table 4 to move towards the guide plate 3 along the third linear guide rail 12. A first telescopic cylinder 13 is also connected between the guide plate 3 and the sheet feeding table 4. The first telescopic cylinder 13 is used to control the movement of the sheet feeding table 4 on the third linear guide rail 12. Synchronously, the movable block 2 can also move towards one end of the base 1 through the first linear guide rail 10.

[0033] A cross bar 6 passing through the interior of the sheet feeding table 4 is connected between the two movable blocks 2, enabling the sheet feeding table 4 to move left and right along the cross bar 6. A deviation correction inductor 5 for detecting the position of the electrode sheet on the sheet feeding table 4 is installed on one of the movable blocks 2. A deviation correction assembly 7 for controlling the left and right movement of the guide plate 3 is installed at one end of the base 1. The deviation correction inductor 5 is mainly used to detect the position of the electrode sheet on the sheet feeding table 4. The deviation correction inductor 5 needs to be used in cooperation with a deviation correction sensor. Then, the deviation correction assembly 7 receives the command fed back by the deviation correction sensor and performs deviation correction processing. During deviation correction movement, the guide plate 3 moves left and right, and the sheet feeding table 4 moves in the same direction as the guide plate 3.

[0034] For example: If the reference position of the pre-set electrode sheet detected by the deviation correction inductor 5 is 0, when the value detected by the deviation correction inductor 5 is 0, the position of the electrode sheet does not need to be adjusted; if the value detected by the deviation correction inductor 5 after detecting the position of the electrode sheet is negative, then the deviation correction assembly 7 needs to control the guide plate 3 and the sheet feeding table 4 to move to the right by the corresponding distance; if the value detected by the deviation correction inductor 5 after detecting the position of the electrode sheet is positive, then the deviation correction assembly 7 needs to control the guide plate 3 and the sheet feeding table 4 to move to the left by the corresponding distance. In this way, the left and right deviation correction of the position of the electrode sheet is performed.

[0035] Among them, the structure of the rectification component 7 is mainly composed of a rectification motor 701, a rectification lead screw 702, and a rectification connection block 703. The rectification connection block 703 is connected to the bottom of the guide plate 3. One end of the rectification lead screw 702 is connected to the rectification motor 701, and the other end passes through the rectification connection block 703 and is fixed. The rectification lead screw 702 drives the rectification connection block 703 to move left and right through the rectification motor 701 to realize the left and right rectification movement of the guide plate 3.

[0036] During the process of conveying the pole piece, air holes 14 for adsorbing the pole piece are provided on the surfaces of both the guide plate 3 and the sheet feeding table 4. Connectors 15 communicated with the corresponding air holes 14 are provided at one ends of the guide plate 3 and the sheet feeding table 4. A certain adsorption effect on the pole piece is generated through the air holes 14, so that the pole piece can be better adsorbed. At the same time, the user can access an external device providing an air suction effect through the corresponding connector 15.

[0037] In order to further strengthen the non-movement of the position of the pole piece before winding, a rotatable pole piece roller 8 is installed on the surface of the sheet feeding table 4. Above the sheet feeding table 4, there is also a pressing component 9 that can move up and down after being controlled by a second telescopic cylinder 16. The pole piece roller 8 and the pressing component 9 are used in cooperation to press and combine the pole piece and the film. Among them, the pressing component 9 includes a pressing positioning part 901 and a mounting seat 902. One end of the pressing positioning part 901 is connected to the mounting seat 902 through a fourth linear guide rail 903. The mounting seat 902 is provided with a lower rectification roller 904 that can press down on the pole piece roller 8. When the pressing component 9 is combined and positioned with the sheet feeding table 4, a positioning pin 906 for inserting into the sheet feeding table 4 for positioning is connected to one end of the mounting seat 902. Correspondingly, the sheet feeding table 4 is provided with a positioning socket 17 for inserting the positioning pin 906.

[0038] When the lower rectification roller 904 is pressed against the pole piece roller 8 through the pole piece, the lower rectification roller 904 can move left and right along with the pole piece roller 8 through the fourth linear guide rail 903. Before the pole piece realizes left and right rectification, the lower rectification roller 904 of the pressing component 9 presses down and contacts the pole piece roller 8, and presses the pole piece. When the pole piece is in the left and right rectification position, since the lower rectification roller 904 has already contacted the pole piece roller 8, the lower rectification roller 904 will move along with the movement of the sheet feeding table 4, and slide through the fourth linear guide rail 903 during the movement.

[0039] After the pole piece winding is completed, the lower deviation rectifying roller 904 rises and resets at this time. There are two symmetrically distributed reset springs 905 connected between the lower pressing positioning member 901 and the mounting seat 902. During reset, the reset springs 905 on both sides are symmetrically distributed, and then the mounting seat 902 with the lower deviation rectifying roller 904 is pulled back to the middle position of the fourth linear guide rail 903 by their own potential energy, and then the next round of pole piece fixing and deviation rectification is carried out. It should be added that when the feeding table 4 moves towards one end of the guide plate 3, the position of the lower pressing assembly 9 does not move back and forth with the feeding table 4. When the feeding table 4 moves backward to the lower part of the lower pressing assembly 9, the lower pressing assembly 9 moves downward to be positioned and combined with the feeding table 4.

[0040] Compared with the traditional technology, in the technical solution of the present invention, when winding the pole piece, the pole piece is further pressed by the lower pressing assembly 7 to prevent the pole piece from moving along. At the same time, the deviation distance of the pole piece is detected by the deviation rectifying inductor 5, and then the left and right movement is controlled by the deviation rectifying assembly 7 for deviation rectification, so as to improve the effect of pole piece winding.

[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. Real-time deviation correction and positioning mechanism for winding process, including a base and two movable blocks that can move forward. A guide plate for conveying the pole piece is provided above the base. A sheet feeding table that can move towards the guide plate is installed between the two movable blocks. When the movable blocks move towards the base, the sheet feeding table synchronously moves towards the guide plate. It is characterized in that: The movable block is equipped with a deviation correction inductor for detecting the position of the pole piece on the sheet feeding table. A cross bar passing through the inside of the sheet feeding table is connected between the two movable blocks, enabling the sheet feeding table to move left and right along the cross bar. One end of the base is installed with a deviation correction component for controlling the left and right movement of the guide plate. When the guide plate moves left and right, the sheet feeding table moves in the same direction along with the guide plate; The sheet feeding table is installed with a rotatable pole piece passing roller. Above the sheet feeding table, there is also a downward pressing component that can move up and down. The downward pressing component includes a downward pressing positioning piece and a mounting seat. One end of the downward pressing positioning piece is connected to the mounting seat through a fourth linear guide rail. The mounting seat is installed with a lower deviation correction roller that can press down on the pole piece passing roller. When the lower deviation correction roller and the pole piece passing roller are connected by the pole piece, the lower deviation correction roller can move left and right along with the pole piece passing roller through the fourth linear guide rail.

2. The real-time deviation rectifying and positioning mechanism for the winding process according to claim 1, characterized in that: One end of the base and the movable block are connected by a first linear guide rail, enabling the movable block to move towards the base along the first linear guide rail.

3. The real-time deviation rectifying and positioning mechanism for the winding process according to claim 1, characterized in that: The base and the guide plate are connected by a second linear guide rail, enabling the guide plate to move left and right through the second linear guide rail.

4. The real-time deviation rectification and positioning mechanism for the winding process according to claim 1, characterized in that: One end of the guide plate and the sheet feeding table are connected by a third linear guide rail, enabling the sheet feeding table to move towards the guide plate along the third linear guide rail. A first telescopic cylinder is also connected between the guide plate and the sheet feeding table. The first telescopic cylinder is used to control the movement of the sheet feeding table on the third linear guide rail.

5. The real-time deviation rectifying and positioning mechanism for the winding process according to claim 1, characterized in that: The deviation correction component is composed of a deviation correction motor, a deviation correction screw rod, and a deviation correction connection block. The deviation correction connection block is connected to the bottom of the guide plate. One end of the deviation correction screw rod is connected to the deviation correction motor, and the other end passes through the deviation correction connection block and is fixed. The deviation correction screw rod drives the deviation correction connection block to move left and right through the deviation correction motor to achieve the left and right deviation correction movement of the guide plate.

6. The real-time deviation rectification and positioning mechanism for the winding process according to claim 1, characterized in that: Both the guide plate and the sheet feeding table are provided with air holes for adsorbing the pole piece. One end of both the guide plate and the sheet feeding table is provided with a joint that is communicated with the corresponding air hole.

7. The real-time deviation rectifying and positioning mechanism for the winding process according to claim 1, wherein: A second telescopic cylinder is installed at the top of the downward pressing positioning piece. The second telescopic cylinder is used to control the downward pressing component to move towards the sheet feeding table.

8. The real-time deviation rectifying and positioning mechanism for the winding process according to claim 1, wherein: Two reset springs for resetting the lower deviation correction roller are connected between the downward pressing positioning piece and the mounting seat. The two reset springs are symmetrically distributed. When the lower deviation correction roller is away from the pole piece passing roller, the reset springs reset the lower deviation correction roller to the center.

9. The real-time deviation rectifying and positioning mechanism for the winding process according to any one of claims 1-8, characterized in that: One end of the mounting seat is connected with a positioning pin for inserting into the sheet feeding table for positioning. The sheet feeding table is configured with a corresponding positioning jack for inserting the positioning pin.

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