Clamping device and coating equipment

Abstract

The utility model provides a clamping device and coating equipment. The clamping device is used for clamping an electrode plate. The clamping device comprises a base, a clamping structure and a height adjusting structure. The clamping structure is arranged on the base, the clamping structure comprises a first clamping roller and a second clamping roller, and the first clamping roller and the second clamping roller are used for clamping a non-coating area of the electrode pole piece. The height adjusting structure is installed on the rack and connected with the base, and the height adjusting structure is used for driving the base and the clamping structure to move relative to the rack. The height adjusting structure is used for driving the clamping structure to move, so that the clamping structure drives the electrode pole piece to move relative to the rack, the distance between the electrode pole piece and the coating device is adjusted, different coating requirements of the electrode pole piece are met, and the clamping structure is used for clamping the part, located between the coating device and the drying device, of the electrode pole piece; therefore, the fluctuation of the electrode pole piece caused by the influence of the drying device is eliminated, and the part of the electrode pole piece, which is positioned at the coating device, is kept stable.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a clamping device and coating equipment. Background Art

[0002] There is a distance between the coating device and the drying device, and the part of the electrode sheet between the coating device and the drying device is in a suspended state. When the drying device dries the electrode sheet, affected by the drying device, the part of the electrode sheet between the coating device and the drying device is prone to jitter, and the jitter of the electrode sheet will be transmitted to the coating device, making the distance between the electrode sheet and the coating device unstable, resulting in uneven coating thickness of the electrode sheet. Summary of the Utility Model

[0003] The utility model provides a solution to the problem that the part of the electrode sheet between the coating device and the drying device is prone to jitter.

[0004] In a first aspect, the utility model provides a clamping device, which is installed on a frame. The clamping device is used to clamp an electrode sheet. The electrode sheet includes a coating area and a non - coating area, both the coating area and the non - coating area extend along the conveying direction of the electrode sheet, and the coating area and the non - coating area are adjacent to each other along a direction perpendicular to the conveying direction of the electrode sheet. The clamping device includes a base, a clamping structure and a height - adjusting structure. The clamping structure is arranged on the base, and the clamping structure includes a first clamping roller and a second clamping roller, and the first clamping roller and the second clamping roller are used to clamp the non - coating area. The height - adjusting structure is installed on the frame and is connected to the base, and the height - adjusting structure is used to drive the base together with the clamping structure to move relative to the frame.

[0005] In some embodiments, the height - adjusting structure includes a driving member and a mounting member. The mounting member is installed on the frame, the base is installed on the mounting member, and the driving member is used to drive the mounting member to move relative to the frame.

[0006] In some embodiments, the first clamping roller is a driving roller, the first clamping roller is configured as a rigid roller, the second clamping roller is a driven roller, and the second clamping roller is configured as an elastic roller.

[0007] In some embodiments, the first clamping roller is located on the side of the second clamping roller closer to the ground.

[0008] In some embodiments, the clamping device also includes a first adjustment structure, the base includes a first substrate and a second substrate, the first clamping roller is arranged on the first substrate, the second clamping roller is arranged on the second substrate, and the first adjustment structure is used to adjust the distance between the first substrate and the second substrate.

[0009] In some embodiments, the clamping structure further includes a second adjustment structure, and the second adjustment structure is used to adjust the distance between the first clamping roller and the second clamping roller.

[0010] In some embodiments, the second adjustment structure includes a fixing member, an abutment member and a stop member, the stop member is fixed relative to the first clamping roller or the second clamping roller, the fixing member is fixed relative to the base, a through hole is provided on the fixing member, the abutment member passes through the through hole and is threadedly engaged with the fixing member, one end of the abutment member away from the fixing member is abutted against the stop member, and the abutment member is used to adjust the distance between the stop member and the fixing member.

[0011] In some embodiments, the clamping device includes a plurality of the clamping structures, the plurality of the clamping structures are arranged at intervals along the conveying direction of the electrode sheet, and all the first clamping rollers of the plurality of the clamping structures rotate synchronously.

[0012] In some embodiments, the first clamping rollers in the plurality of clamping structures are connected together by a connecting member.

[0013] In a second aspect, the utility model provides a coating device, which includes a frame, a coating device, a drying device and a clamping device as described above, wherein the coating device, the drying device and the clamping device are respectively installed on the frame, and the clamping device is located between the coating device and the drying device.

[0014] In the clamping device and coating equipment provided by the utility model, a clamping device is arranged between the coating device and the drying device, and the clamping device includes a clamping structure for clamping the non-coating area of the electrode plate and a height-adjusting structure for adjusting the movement of the clamping structure relative to the frame. The height-adjusting structure is used to drive the clamping structure to move, so that the clamping structure drives the electrode plate to move relative to the frame, thereby adjusting the distance between the electrode plate and the coating device, facilitating the debugging of the coating device to adapt to different coating requirements of the electrode plate. The clamping structure can clamp the portion of the electrode plate located between the coating device and the drying device, thereby absorbing and eliminating fluctuations in the electrode plate caused by the influence of the drying device, so that the portion of the electrode plate located at the coating device remains stable, thereby improving the uniformity of the coating thickness of the electrode plate and improving the coating quality of the coating equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 is a schematic structural diagram of the coating device provided by the embodiment of the present utility model.

[0017] Figure 2 is a schematic structural diagram of the electrode plate provided by the embodiment of the present utility model.

[0018] Figure 3 is a schematic structural diagram of the clamping structure provided by the embodiment of the present utility model.

[0019] Main reference numerals: coating device 100; frame 101; clamping device 10; base 11; first substrate 111; second substrate 112; clamping structure 12; first clamping roller 121; second clamping roller 122; height adjustment structure 13; driving member 131; mounting member 132; first adjustment structure 141; second adjustment structure 142; fixing member 1421; abutting member 1422; stopping member 1423; connecting member 15; coating device 161; drying device 162; electrode plate 200; coating area 210; non-coating area 220.

[0020] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned accompanying drawings. Specific Embodiments

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0022] Reference to "embodiment" or "embodiment" in this context means that a particular feature, structure, or characteristic described in connection with the embodiment or embodiment may be included in at least one embodiment of the present utility model. The phrase does not necessarily refer to the same embodiment at every occurrence in the specification, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0023] It should be noted that the terms in the description, claims and above-mentioned drawings of the present utility model are only for describing specific embodiments and do not intend to limit the present utility model. The terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish different objects rather than to describe a specific order. The term "and / or" used in the description and appended claims of the present utility model refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0024] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the coating device 100 provided by an embodiment of the present utility model; Figure 2 is a schematic structural diagram of the electrode plate 200 provided by an embodiment of the present utility model. The coating device 100 includes a frame 101, a coating device 161, a drying device 162 and a clamping device 10. The coating device 161, the drying device 162 and the clamping device 10 are respectively installed on the frame 101. The clamping device 10 is located between the coating device 161 and the drying device 162.

[0025] The coating device 161 is used to coat the electrode plate 200 so that the slurry adheres to the surface of the electrode plate 200. Among them, the electrode plate 200 includes a coating area 210 and a non-coating area 220. The coating area 210 and the non-coating area 220 extend along the conveying direction of the electrode plate 200. The coating area 210 and the non-coating area 220 are adjacent to each other along a direction perpendicular to the conveying direction of the electrode plate 200. Among them, the non-coating area 220 can be set to two, the coating area 210 can be set to one, and the coating area 210 is arranged between the two non-coating areas 220. In some embodiments, the coating area 210 and the non-coating area 220 can be respectively set to multiple, and the multiple coating areas 210 and the multiple non-coating areas 220 are alternately arranged.

[0026] The coating device 161 is used to coat the coating area 210. The drying device 162 is used to dry the coated electrode plate 200. The clamping device 10 is used to clamp the non-coating area 220 of the electrode plate 200 to support the electrode plate 200 and reduce the fluctuation of the electrode plate 200.

[0027] The clamping device 10 includes a base 11, a clamping structure 12 and a height adjustment structure 13. The clamping structure 12 is arranged on the base 11. The clamping structure 12 includes a first clamping roller 121 and a second clamping roller 122. The first clamping roller 121 and the second clamping roller 122 are used to clamp the non-coating area 220. The height adjustment structure 13 is installed on the frame 101 and is connected to the base 11. The height adjustment structure 13 is used to drive the base 11 together with the clamping structure 12 on the base 11 to move relative to the frame 101.

[0028] Among them, in the existing coating equipment, since there is a distance between the coating device 161 and the drying device 162, the portion of the electrode plate 200 between the coating device 161 and the drying device 162 will be in a suspended state. When the drying device 162 dries the electrode plate 200, it is affected by the drying device 162, and the portion of the electrode plate 200 between the coating device 161 and the drying device 162 is prone to shake. When the shaking of the electrode plate 200 is transmitted to the position of the coating device 161, the distance between the electrode plate 200 and the coating device 161 becomes unstable, resulting in uneven coating thickness of the electrode plate 200. In this embodiment, a clamping device 10 is provided between the coating device 161 and the drying device 162. The clamping device 10 includes a clamping structure 12 for clamping the non-coating area 220 of the electrode plate 200 and a height adjustment structure 13 for adjusting the movement of the clamping structure 12 relative to the frame 101. The height adjustment structure 13 is used to drive the clamping structure 12 to move, so that the clamping structure 12 drives the electrode plate 200 to move relative to the frame 101, thereby adjusting the distance between the electrode plate 200 and the coating device 161. To facilitate the debugging of the coating equipment 100 to adapt to different coating requirements of the electrode plate 200, the clamping structure 12 is used to clamp the portion of the electrode plate 200 located between the coating device 161 and the drying device 162, thereby absorbing and eliminating the fluctuation of the electrode plate 200 caused by the influence of the drying device 162, so that the portion of the electrode plate 200 located at the coating device 161 remains stable, thereby improving the uniformity of the coating thickness of the electrode plate 200 and improving the coating quality of the coating equipment 100.

[0029] In this embodiment, the first clamping roller 121 is configured as an active roller, and the second clamping roller 122 is configured as a passive roller. The clamping device 10 also includes a driver, which is connected to the first clamping roller 121 in a transmission manner and is used to drive the first clamping roller 121 to rotate. The first clamping roller 121 and the second clamping roller 122 have opposite rotation directions and the same rotation linear speed, and the rotation linear speed is consistent with the conveying speed of the electrode plate 200, that is, the linear speed of the contact point between the first clamping roller 121 and the second clamping roller 122 and the electrode plate 200 is the same as the conveying speed of the electrode plate 200, so as to avoid wrinkling the electrode plate 200 while tensioning the electrode plate 200. The first clamping roller 121 and the second clamping roller 122 can be connected together by a gear structure. In some embodiments, the first clamping roller 121 and the second clamping roller 122 can also be connected by other transmission structures, such as magnetic transmission. In some embodiments, the first clamping roller 121 and the second clamping roller 122 can also be configured as active rollers respectively. For example, two drivers may be provided, and the two drivers respectively drive the first clamping roller 121 and the second clamping roller 122 to rotate.

[0030] Exemplarily, the electrode sheet 200 can be conveyed horizontally between the coating device 161 and the drying device 162, that is, in a direction parallel to the ground. The first clamping roller 121 is located on the side of the second clamping roller 122 closer to the ground. Among them, the first clamping roller 121 being located on the side closer to the ground can cause the second clamping roller 122 to approach the first clamping roller 121 under the action of gravity, thereby reducing or eliminating the installation error between the second clamping roller 122 and the first clamping roller 121, improving the installation accuracy between the first clamping roller 121 and the second clamping roller 122, and improving the synchronization when the first clamping roller 121 and the second clamping roller 122 rotate. In addition, affected by the action of gravity, the first clamping roller 121 being located on the side of the electrode sheet 200 closer to the ground can make the contact between the electrode sheet 200 and the first clamping roller 121 closer, so that the first clamping roller 121 can better drive the electrode sheet 200 to move.

[0031] The first clamping roller 121 can be configured as a rigid roller, and the second clamping roller 122 can be configured as an elastic roller. Exemplarily, the second clamping roller 122 can be configured as a rubber-coated roller, that is, a rubber sleeve is sleeved on the outer shaft surface of the second clamping roller 122. The first clamping roller 121 can be configured as a metal roller. The second clamping roller 122 being configured as an elastic roller can cause the position where the second clamping roller 122 abuts against the electrode sheet 200 to deform, so that while not breaking or damaging the electrode sheet 200, a greater clamping force can be set between the first clamping roller 121 and the second clamping roller 122, and thus the electrode sheet 200 can be clamped more firmly. The first clamping roller 121 being configured as a rigid roller can more accurately determine the height of the electrode sheet 200 relative to the frame 101, so as to facilitate the height adjustment structure 13 to adjust the distance between the electrode sheet 200 and the coating device 161. Specifically, when the first clamping roller 121 and the second clamping roller 122 clamp the electrode sheet 200, the position where the second clamping roller 122 abuts against the electrode sheet 200 will deform, and the position where the first clamping roller 121 abuts against the electrode sheet 200 will not deform, so that the position of the electrode sheet 200 can be determined by the position of the first clamping roller 121. In some embodiments, the first clamping roller 121 can also be configured as an elastic roller, and the second clamping roller 122 can be configured as a rigid roller. In some embodiments, both the first clamping roller 121 and the second clamping roller 122 can be configured as rigid rollers.

[0032] The height adjustment structure 13 includes a driving member 131 and a mounting member 132. The mounting member 132 is mounted on the frame 101. The mounting member 132 is movably arranged relative to the frame 101. The base 11 is mounted on the mounting member 132. The driving member 131 is used to drive the mounting member 132 to move relative to the frame 101, so that the mounting member 132 drives the base 11 and the clamping structure 12 to move integrally relative to the frame 101. Among them, the height adjustment structure 13 can be configured as a lead screw slider structure, the driving member 131 is configured as a lead screw, the mounting member 132 is configured as a slider, and the driving member 131 is in threaded cooperation with the mounting member 132. When the driving member 131 rotates, the mounting member 132 can be made to move along the axial direction of the driving member 131. In some embodiments, the height adjustment structure 13 can also be configured as other structures, which are not specifically limited in the present invention. For example, the height adjustment structure 13 can also be configured as a gear rack structure, the driving member 131 can be configured as a gear, and the mounting member 132 can be configured as a rack that slides in cooperation with the frame 101. Another example is that the height adjustment structure 13 can also be configured as a cylinder structure, the driving member 131 is configured as a cylinder body, and the mounting member 132 is configured as a cylinder piston rod that cooperates with the cylinder body.

[0033] The clamping device 10 further includes a first adjustment structure 141. The base 11 includes a first substrate 111 and a second substrate 112. The first clamping roller 121 is arranged on the first substrate 111. The second clamping roller 122 is arranged on the second substrate 112. The first adjustment structure 141 is used to adjust the distance between the first substrate 111 and the second substrate 112, so as to adjust the distance between the first clamping roller 121 and the second clamping roller 122. Among them, the first adjustment structure 141 can be connected to the first substrate 111 to drive the first substrate 111 to move relative to the second substrate 112. In some embodiments, the first adjustment structure 141 can also be connected to the second substrate 112 to drive the second substrate 112 to move relative to the first substrate 111. In some embodiments, the first adjustment structure 141 can also be connected to the first substrate 111 and the second substrate 112 respectively to drive the first substrate 111 and the second substrate 112 to move towards or away from each other.

[0034] In some embodiments, the clamping device 10 further includes a second adjustment structure 142. The second adjustment structure 142 is used to adjust the distance between the first clamping roller 121 and the second clamping roller 122. The adjustment accuracy of the second adjustment structure 142 is greater than the adjustment accuracy of the first adjustment structure 141, and the second adjustment structure 142 can make a more precise adjustment to the distance between the first clamping roller 121 and the second clamping roller 122. The first adjustment structure 141 is used to roughly adjust the distance between the first clamping roller 121 and the second clamping roller 122 to improve the efficiency of the adjustment, and the second adjustment structure 142 is used to finely adjust the distance between the first clamping roller 121 and the second clamping roller 122 so that the first clamping roller 121 and the second clamping roller 122 have a suitable clamping force on the electrode plate 200.

[0035] See also Figure 3 Exemplarily, the second adjustment structure 142 can be connected to the first clamping roller 121 to drive the first clamping roller 121 to move relative to the second clamping roller 122. The second adjustment structure 142 includes a fixing member 1421, an abutment member 1422 and a stop member 1423. The stop member 1423 is fixedly arranged relative to the first clamping roller 121. The fixing member 1421 is fixedly arranged relative to the base 11. A through hole is provided on the fixing member 1421. The abutment member 1422 is inserted into the through hole and is threadedly engaged with the fixing member 1421. One end of the abutment member 1422 away from the fixing member 1421 is abutted against the stop member 1423. The abutment member 1422 is used to adjust the distance between the stop member 1423 and the fixing member 1421.

[0036] Specifically, the fixing member 1421 is fixedly arranged relative to the first substrate 111. The stopper 1423 is slidably connected to the fixing member 1421. The first clamping roller 121 is mounted on the stopper 1423 and is rotatably connected to the stopper 1423. An internal thread structure may be arranged in the through hole of the fixing member 1421, and the abutting member 1422 is configured as a rod. An external thread structure matching the internal thread structure is arranged on the outer wall of the abutting member 1422. When the abutting member 1422 is rotated, the abutting member 1422 may move along the axial direction of the through hole to push against the stopper 1423, so that the stopper 1423 drives the first clamping roller 121 to move. In some embodiments, the second adjustment structure 142 further includes a reset member (not shown), which is used to push the stopper 1423 toward the abutting member 1422 so that the stopper 1423 and the abutting member 1422 remain in abutment.

[0037] In some embodiments, the second adjustment structure 142 may also be connected to the second clamping roller 122 to drive the second clamping roller 122 to move relative to the first clamping roller 121. The fixing member 1421 may be fixedly disposed relative to the second substrate 112. The stopper 1423 is fixedly disposed relative to the second clamping roller 122.

[0038] In some embodiments, the second adjustment structure 142 can also be connected to the first clamping roller 121 and the second clamping roller 122 respectively to drive the first clamping roller 121 and the second clamping roller 122 to move toward or away from each other. For example, the fixing member 1421 is fixedly disposed relative to the first substrate 111, and the stopper 1423 is fixedly disposed relative to the second clamping roller 122.

[0039] See also Figure 1 The clamping device 10 includes a plurality of clamping structures 12. The plurality of clamping structures 12 are arranged at intervals along the conveying direction of the electrode sheet 200. Among them, all the first clamping rollers 121 in the plurality of clamping structures 12 rotate synchronously to stably convey the electrode sheet 200 and avoid wrinkles or ruptures of the electrode sheet 200. All the first clamping rollers 121 in the plurality of clamping structures 12 can be connected together by a connecting member 15. Exemplarily, each first clamping roller 121 is provided with a synchronous pulley, which is used to drive the first clamping roller 121 to rotate. The connecting member 15 is configured as a synchronous belt that cooperates with the synchronous pulley, and the synchronous belt is used to drive and connect the synchronous pulleys on all the first clamping rollers 121 together to achieve synchronous rotation between the first clamping rollers 121 used. In some embodiments, the connecting member 15 can also be configured as a chain, and each first clamping roller 121 is provided with a sprocket that cooperates with the chain, and the chain is used to drive and connect the sprockets on all the first clamping rollers 121 together.

[0040] In the multiple clamping structures 12, all the first clamping rollers 121 are arranged on the first substrate 111, and all the second clamping rollers 122 are arranged on the second substrate 112. The first adjustment structure 141 can drive all the first clamping rollers 121 to move as a whole through the first substrate 111 and / or drive all the second clamping rollers 122 to move as a whole through the second substrate 112, thereby simplifying the structure of the clamping device 10 and reducing production costs. The multiple clamping structures 12 can be arranged at equal intervals to improve the clamping stability of the electrode plate 200 of the clamping device 10. In some embodiments, the multiple clamping structures 12 can be arranged at unequal intervals.

[0041] Exemplarily, in the plurality of clamping structures 12, the contact points of all the first clamping rollers 121 and the electrode sheet 200 are on the same straight line, so that the electrode sheet 200 is arranged to extend in a straight line on the clamping device 10. The portion of the electrode sheet 200 between the coating device 161 and the drying device 162 is arranged to extend in a straight line, so as to avoid bending the electrode sheet 200 after coating, thereby avoiding the problem of cracking and falling off of the slurry, and improving the coating quality of the electrode sheet 200.

[0042] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A clamping device, which is installed on a frame and is used for clamping an electrode tab. The electrode tab includes a coating area and a non - coating area. Both the coating area and the non - coating area extend along the conveying direction of the electrode tab, and the coating area and the non - coating area are adjacent to each other along a direction perpendicular to the conveying direction of the electrode tab. It is characterized in that, The clamping device comprises: Pedestal; A clamping structure, disposed on the base, the clamping structure comprising a first clamping roller and a second clamping roller, the first clamping roller and the second clamping roller being used to clamp the non-coating area; The height-adjusting structure is installed on the frame and connected to the base. The height-adjusting structure is used to drive the base and the clamping structure to move relative to the frame.

2. The clamping device according to claim 1, characterized in that The height adjustment structure comprises a driving member and a mounting member, wherein the mounting member is mounted on the frame, the base is mounted on the mounting member, and the driving member is used for driving the mounting member to move relative to the frame.

3. The clamping device according to claim 1, characterized in that, The first clamping roller is an active roller, and the first clamping roller is configured as a rigid roller. The second clamping roller is a passive roller, and the second clamping roller is configured as an elastic roller.

4. The clamping device according to claim 3, characterized in that, The first clamping roller is located on a side of the second clamping roller close to the ground.

5. The clamping device according to claim 1, characterized in that, The clamping device also includes a first adjustment structure, the base includes a first substrate and a second substrate, the first clamping roller is arranged on the first substrate, the second clamping roller is arranged on the second substrate, and the first adjustment structure is used to adjust the distance between the first substrate and the second substrate.

6. The clamping device according to claim 1, wherein The clamping structure further includes a second adjusting structure, and the second adjusting structure is used to adjust the distance between the first clamping roller and the second clamping roller.

7. The clamping device according to claim 6, wherein The second adjustment structure includes a fixing part, a contact part and a stop part. The stop part is fixedly arranged relative to the first clamping roller or the second clamping roller. The fixing part is fixedly arranged relative to the base. A through hole is opened on the fixing part. The contact part passes through the through hole and is threadedly engaged with the fixing part. One end of the contact part away from the fixing part is contacted with the stop part. The contact part is used to adjust the distance between the stop part and the fixing part.

8. The clamping device according to claim 1, characterized in that, The clamping device comprises a plurality of the clamping structures, the plurality of the clamping structures are arranged at intervals along the conveying direction of the electrode sheet, and all the first clamping rollers of the plurality of the clamping structures rotate synchronously.

9. The clamping device according to claim 8, wherein The first clamping rollers in the plurality of clamping structures are connected together by transmission via a connecting member.

10. A coating device, characterized in that, It comprises a frame, a coating device, a drying device and a clamping device as described in any one of claims 1 to 9, wherein the coating device, the drying device and the clamping device are respectively installed on the frame, and the clamping device is located between the coating device and the drying device.

Images