Tab rubberizing mechanism and tab rubberizing equipment

Abstract

The utility model discloses a tab rubberizing mechanism and tab rubberizing equipment, and the tab rubberizing mechanism comprises a supporting assembly which comprises a lower supporting plate abutting against the first side of a tab in the first direction; the glue suction assembly and the supporting assembly are oppositely arranged in the first direction, the glue suction assembly comprises an upper supporting plate capable of moving in the first direction and a plurality of suction pieces movably connected to the upper supporting plate, and the multiple suction pieces can independently move relative to the lower supporting plate in the first direction so as to abut against the second side of the tab; the multiple adsorption parts are sequentially and adjacently arranged in the second direction perpendicular to the first direction. According to the tab rubberizing mechanism disclosed by the embodiment of the invention, the lower supporting plate used for supporting the first side of the tab and the plurality of adsorption pieces which can move relative to the lower supporting plate in the first direction so as to abut against the tab from the second side are arranged, so that the tab rubberizing mechanism can be tightly attached to each surface of the target workpiece during rubberizing to adapt to the height difference of the surface of the workpiece; and the application effect on the surface of the tab with the height difference is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to the technical field of mechanical assembly. More particularly, the present disclosure relates to a tab pasting mechanism and a tab pasting device. BACKGROUND

[0002] In the production process for tab pasting and other processes involving film attachment, it is often necessary to move and attach a flexible protective film for protecting the surface of a workpiece to the surface of the tab. The tab generally includes a foil tab and an outer tab stacked one above the other, and in an ideal state, the upper protective film and the lower protective film should be completely attached to the upper and lower surfaces of the stacked foil tab and outer tab. However, in the prior art, the foil tab and the outer tab are not completely overlapped, i.e., there is a height difference between different parts of the upper surface of the tab. This makes it impossible for the upper protective film to be attached to the part of the upper surface of the foil tab that extends beyond the outer tab in the width direction when using the existing film pasting device. In other words, the edge part between the foil tab and the outer tab cannot be covered by the existing technology. As a result, after the upper and lower protective films are attached to the tab, the height difference may cause the upper and lower protective films to not fit well with the tab, reducing the adhesion strength of the protective film to the tab and increasing the risk of detachment.

[0003] Therefore, there is an urgent need to provide a tab pasting mechanism and a tab pasting device to adapt to the height difference of the tab surface and improve the attachment effect of the protective film. SUMMARY

[0004] To at least solve one or more of the above-mentioned technical problems, the present disclosure proposes a tab pasting mechanism and a tab pasting device in various aspects.

[0005] In a first aspect, the present disclosure provides a tab pasting mechanism, comprising: a support assembly comprising a lower support plate abutting a first side of a tab in a first direction; a suction assembly disposed opposite the support assembly in the first direction, the suction assembly comprising an upper support plate movable in the first direction, and a plurality of suction accessories movably connected to the upper support plate, the plurality of suction accessories being capable of moving independently of each other relative to the lower support plate in the first direction to abut a second side of the tab opposite the first side, the plurality of suction accessories being arranged adjacent to each other in a second direction perpendicular to the first direction.

[0006] In some embodiments, the suction accessory comprises a support column and a suction plate disposed opposite the upper support plate in the first direction, the support column extending in the first direction and being connected between the upper support plate and the suction plate.

[0007] In some embodiments, the glue suction assembly further comprises a plurality of supporting telescopic members, the supporting telescopic members are telescopic along the first direction, and one end of the supporting telescopic members abuts against the suction plate, and the other end of the supporting telescopic members abuts against the upper supporting plate.

[0008] In some embodiments, the supporting telescopic members comprise supporting springs, the plurality of supporting springs are sleeved on the outer periphery of the supporting column, and one end of the supporting springs abuts against the suction plate, and the other end of the supporting springs abuts against the upper supporting plate.

[0009] In some embodiments, the plurality of glue suction members are arranged at intervals along the second direction, and the lengths of the adjacent plurality of supporting columns in the first direction are sequentially increased at both ends along the second direction, respectively.

[0010] In some embodiments, the glue suction assembly comprises a first glue suction member, and two second glue suction members arranged on both sides of the first glue suction member along the second direction, and two third glue suction members arranged on both sides of the two second glue suction members along the second direction; and / or, the suction plate of the second glue suction member is further provided with a stop portion protruding towards the lower supporting plate along the first direction.

[0011] In some embodiments, the supporting assembly further comprises a lower driving member, the lower driving member is drivingly connected with the lower supporting plate along the first direction, the lower supporting plate is further provided with a lower suction hole, the glue suction assembly comprises an upper driving member, the upper driving member is drivingly connected with the upper supporting plate along the first direction, the suction plate is provided with a vacuum suction hole, and the vacuum suction hole and the lower suction hole provide negative pressure on both sides of the tab, respectively.

[0012] In some embodiments, the upper supporting plate is provided with an adjusting portion extending along the second direction, and the plurality of supporting columns are adjustably connected to the adjusting portion.

[0013] In some embodiments, the glue suction member comprises a fixing assembly, the adjusting portion is a long hole penetrating through the upper supporting plate and extending along the second direction, one end of the supporting column is threadedly connected with the suction plate through the long hole, and the other end of the supporting column is detachably connected with the fixing assembly to limit the position relative to the upper supporting plate.

[0014] In a second aspect, the present disclosure provides a tab gluing device, comprising a glue supply mechanism and a tab gluing mechanism according to the first aspect and the plurality of embodiments, wherein the glue supply mechanism is used to provide glue for the tab gluing mechanism.

[0015] Through the tab gluing mechanism provided above, by arranging the lower supporting plate for supporting the first side of the tab, and the plurality of glue suction members capable of moving relative to the lower supporting plate along the first direction to abut against the tab from the second side opposite to the first side, the close adhesion to each surface of the target workpiece during gluing can be maintained, the height difference of the workpiece surface can be adapted, and the gluing effect on the tab surface with height difference can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and other objects, features and advantages of the disclosed example embodiments will become more apparent from the following detailed description read in conjunction with the accompanying drawings, in which like reference numerals refer to like elements throughout. Several embodiments of the present disclosure are illustrated in the drawings and described herein, and while the same are susceptible to various modifications and alternative forms, the drawings were shown by way of example and are not intended to limit the disclosure in any manner. It should be understood that the drawings are not necessarily drawn to scale. In the drawings:

[0017] Figure 1 Exemplary structural schematic diagrams of some existing battery cells are shown;

[0018] Figure 2a Exemplary perspective views of tab taping mechanisms of some embodiments of the present disclosure are shown;

[0019] Figure 2b Exemplary partial enlarged schematic views of portion A in Figure 2a

[0020] Exemplary sectional views of tab taping mechanisms of some embodiments of the present disclosure are shown; Figure 3

[0021] Exemplary perspective views of tab taping mechanisms of some embodiments of the present disclosure are shown; Figure 4

[0022] Exemplary sectional views of tab taping mechanisms of some embodiments of the present disclosure are shown; Figure 5

[0023] Exemplary perspective views of tab taping mechanisms of some embodiments of the present disclosure are shown; Figure 6

[0024] Exemplary sectional views of tab taping mechanisms of some embodiments of the present disclosure are shown; Figure 7a

[0025] Exemplary partial enlarged schematic views of portion B in Figure 7b Figure 7a Exemplary sectional views of tab taping mechanisms of some embodiments of the present disclosure are shown;

[0026] Figure 8 Exemplary perspective views of tab taping mechanisms of some embodiments of the present disclosure are shown;

[0027] Figure 9 Exemplary sectional views of the illustrated embodiments in a variation state are shown; Figure 8

[0028] Exemplary side views of tab taping apparatuses of some embodiments of the present disclosure are shown. Figure 10 BRIEF DESCRIPTION OF DRAWINGS

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] ​10-glue suction assembly; 100-tab glue sticking mechanism; 11-upper driving member; 12-upper support plate; 123-adjusting part; 125-fixed guide groove; 131-first suction accessory; 1311-first suction plate; 1311a-first vacuum suction hole; 1311b-first upper connecting hole; 1312-first support column; 1313-first limiting block; 1314-first support spring; 1316-first support bolt; 132-second suction accessory; 1321-second suction plate; 1321a-second vacuum suction hole; 1321b-second upper connecting hole; 1321c-stop portion; 1321d-stop surface; 1322-second support column; 1323-second limiting block; 1324-second support spring; 1326-second support bolt; 133-third suction accessory; 1331-third suction plate; 1331a-third vacuum suction hole; 1331b-third upper connecting hole; 1332-third support column; 1333-third limiting block; 1334-third support spring; 1335-fixed assembly; 1335a-bolt connecting plate; 1335b-fixed bolt; 1335c-fixed nut; 1335e-positioning hole; 1336-third support bolt; 20-support assembly; 200-tab glue sticking equipment; 21-lower driving member; 22-lower support plate; 222-lower communication hole; 223-lower suction hole; 60-fixed rack; 70-cell conveying device; 80-protection film supply mechanism; 90-cell; 91-cell body; 92-cell tab; 921-foil tab; 922-outer tab; 923-upper protection film; 924-lower protection film; 930-welding area. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0032] It should be understood that the terms “include” and “contain” used in the specification and claims of the present disclosure indicate the presence of the described features, whole, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0033] It should also be understood that the terms used herein are for the purpose of describing particular embodiments and are not intended to limit the present disclosure. As used in this specification and claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items. The foregoing detailed description has shown, by way of example, various features and / or processes

[0034] As used in this specification and claims, the terms "if' can be construed to mean "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [a described condition or event] is detected" can be construed to mean "upon determining" or "in response to determining" or "upon detecting [the described condition or event]" or "in response to detecting [the described condition or event]," depending on the context.

[0035] In the production process of the tab gluing and other film attaching related production processes in the process of the battery cell manufacturing, it is often necessary to transfer and attach the flexible protective film for protecting the surface of the workpiece to the surface of the workpiece such as the tab of the battery cell. For example, see Figure 1 , Figure 1 Some exemplary structural schematic diagrams of existing battery cells are shown. The battery cell 90 to be processed includes a battery cell body 91 and two battery cell tabs 92 arranged on one side of the battery cell body 91. The battery cell tab 92 includes two foil tabs 921 extending from one side of the battery cell body 91, and an outer tab 922 welded on the second side opposite to the first side of the foil tab 921. The foil tab 921 is formed by stacking multiple layers of metal foil, and the outer tab 922 is a metal plate, which is welded and connected with the foil tab 921 by ultrasonic welding or the like. After welding is completed, the welding area 930 on the upper surface of the outer tab 922 and the lower surface of the foil tab 921 will leave welding marks. Due to the deformation caused by welding and the concave-convex surface shape that the welding head itself may have, the welding area 930 can have a concave-convex surface structure with sharp edges. Such a concave-convex surface structure can touch and damage other components of the battery in subsequent production processes, such as piercing the aluminum plastic film wrapped on the outside of the battery cell.

[0036] To this end, the existing solution is to attach a protective film 923 to the upper welding area on the second side of the outer tab 922, and to attach a lower protective film 924 to the lower welding area on the first side of the foil tab 921. The upper protective film 923 and the lower protective film 924 are flexible tapes. By attaching the upper protective film 923 and the lower protective film 924 to the corresponding welding areas 930, respectively, the contact between the concave-convex surface of the welding area 930 and other components of the battery can be prevented, thereby reducing the probability of damage to other components by the concave-convex structure of the surface.

[0037] In an ideal state, the upper protective film 923 and the lower protective film 924 should be completely attached to the upper and lower surfaces of the stacked foil tab 921 and the outer tab 922, and the adhesive part of the upper protective film 923 and the lower protective film 924 should be reserved beyond the width of the battery tab 92 at the transverse edges of the upper protective film 923 and the lower protective film 924, so that the transverse edge parts of the upper and lower protective films can be adhered to each other. However, in the prior art, the foil tab 921 and the outer tab 922 do not completely overlap in the thickness direction, i.e., the width of the foil tab 921 is not consistent with the width of the outer tab 922. The width of the foil tab 921 can be greater than the width of the outer tab 922. This makes it impossible for the upper protective film 923 to be attached only to the upper surface of the outer tab 922 on the second side when the upper protective film 923 is attached, and the part of the upper surface of the foil tab 921 beyond the outer tab 922 in the width direction cannot be attached. In other words, the edge part between the foil tab 921 and the outer tab 922 with a height difference cannot be covered by the existing technology. As a result, after the upper and lower protective films are attached to the battery tab 92, the upper and lower protective films may not be able to adhere to each other due to the height difference, which reduces the adhesion strength of the protective film to the battery tab 92 and increases the risk of falling off.

[0038] Therefore, the disclosure embodiments provide a tab gluing mechanism, which can maintain close attachment of the protective film to the surface of each part of the target tab during gluing, adapt to the height difference of the tab surface, and improve the gluing effect on the tab surface with a height difference by providing a lower support plate for supporting the first side of the tab, and a plurality of suction members capable of moving independently of the lower support plate in a first direction and abutting against the tab from the second side.

[0039] The specific embodiments of the disclosure will be described in detail below with reference to the accompanying drawings. In the embodiments, for the sake of description, Figure 1The direction perpendicular to the surface of the tab 92 of the battery cell is defined as the first direction, the direction in which the two tabs of the battery cell are arranged in intervals is defined as the second direction, and the direction in which the tab 92 of the battery cell protrudes from the side of the main body 91 of the battery cell is defined as the third direction. The positions and directions of other related mechanisms and components in the present disclosure are described based on this as the reference, and the side of the tab 92 facing the glue suction assembly 10 in the first direction is defined as the second side (or the upper side) of the tab, and the side of the tab 92 opposite to the first side and facing the support assembly 20 is defined as the first side (or the lower side) of the tab. The above orientation description is only an exemplary description and does not constitute a limitation on the actual setting position and orientation of each component in the present disclosure.

[0040] Figure 2a An exemplary perspective view of the tab gluing mechanism of some embodiments of the present disclosure is shown, in which the battery cell part is shown in a dashed line. In this embodiment, the tab gluing mechanism 100 includes a support assembly 20 and a glue suction assembly 10. The support assembly 20 is arranged on the first side of the tab 92 of the battery cell in the first direction and includes a lower driving member 21 and a lower support plate 22 driven by the lower driving member 21 to move in the first direction. The glue suction assembly 10 is arranged on the second side of the tab 92 of the battery cell in the first direction and includes an upper driving member 11 and an upper support plate 12 driven by the upper driving member 11 to move in the first direction, and a first suction member 131, a second suction member 132 and a third suction member 133 movably connected to the upper support plate 12, and the first suction member 131, the second suction member 132 and the third suction member 133 can move relative to the upper support plate 12 in the first direction, and the plurality of suction members are arranged in sequence in the second direction perpendicular to the first direction.

[0041] Specifically, referring to Figure 2a , Figure 2b and Figure 3 , Figure 2b An enlarged schematic view of part A in Figure 2a is shown, Figure 3An exemplary sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown. In this embodiment, the lower driving member 21 is a cylinder, which includes a cylinder body for fixing the support assembly 20 to a fixed component such as a device rack (not shown), and a cylinder rod movable relative to the cylinder body in a first direction. The lower support plate 22 is fixedly arranged at the output end of the cylinder rod, and the lower support plate 22 is provided with a plurality of lower suction holes 223 arranged in the first direction, and at least one lower communication hole 222. One end of the lower communication hole 222 is in communication with the plurality of lower suction holes 223, and the other end penetrates through one side surface of the lower support plate 22 to be exposed outside for connection with an external negative pressure generating device. Thus, the plurality of lower suction holes 223 stably fix the lower protective film 924 on the upper surface of the lower support plate 22 by the negative pressure generated by the negative pressure generating device, and apply the lower protective film 924 to the first side of the tab 92 of the battery cell.

[0042] Similarly, the upper driving member 11 is also a cylinder, and the cylinder body of the upper driving member 11 is also used for fixing to a fixed component such as a device rack, and the upper support plate 12 is fixedly arranged at the output end of the downwardly extending cylinder rod of the upper driving member 11. In this embodiment, the tab taping mechanism 100 includes a plurality of suction members arranged in sequence in a second direction. Specifically, the plurality of suction members are respectively a first suction member 131 located in the middle, two second suction members 132 located on both sides of the first suction member 131, and two third suction members 133 respectively located on the outer sides of the two second suction members 132.

[0043] Referring to Figure 2b, the first suction accessory 131, the second suction accessory 132 and the third suction accessory 133 each include a support column arranged along the first direction and a suction plate arranged opposite to the upper support plate 12 along the first direction, the support column extending along the first direction and being connected between the upper support plate 12 and the suction plate. The first suction accessory 131 includes a first support column 1312 and a first suction plate 1311, the second suction accessory 132 includes a second support column 1322 and a second suction plate 1321, and the third suction accessory 133 includes a third support column 1332 and a third suction plate 1331. A plurality of guide through holes are arranged on the upper support plate 12 and penetrating the upper support plate 12 along the first direction, the lower ends of the support columns of the first suction accessory 131, the second suction accessory 132 and the third suction accessory 133 penetrating the guide through holes and being fixedly connected with the suction plates located on the lower side of the upper support plate 12. The upper sides of the first suction accessory 131, the second suction accessory 132 and the third suction accessory 133 are respectively provided with corresponding first limiting blocks 1313, second limiting blocks 1323 and third limiting blocks 1333, each of the limiting blocks having a radial dimension greater than the diameter of the guide through hole and being clamped on the upper side of the upper support plate 12. Thus, the first suction accessory 131, the second suction accessory 132 and the third suction accessory 133 are respectively connected to the upper support plate 12 in a manner that they can move along the first direction, and each of the suction accessories is limited relative to the upper support plate 12 along the first direction.

[0044] Referring to Figure 3 , each of the suction plates is provided with a vacuum suction hole penetrating the suction plate along the first direction towards the lower side, which specifically includes a first vacuum suction hole 1311a on the first suction plate 1311, a second vacuum suction hole 1321a on the second suction plate 1321 and a third vacuum suction hole 1331a on the third suction plate 1331. Referring to Figure 2b , and each of the suction plates is further provided with an upper connecting hole penetrating one side surface of the suction plate, including a first upper connecting hole 1311b on the first suction plate 1311, a second upper connecting hole 1321b on the second suction plate 1321 and a third upper connecting hole 1331b on the third suction plate 1331, each of the upper connecting holes being used for connection with a negative pressure generating device. Thus, the plurality of suction accessories suction the upper protective film 923 and can respectively paste the surfaces of the upper protective film 923 with the upper surface portions of the plurality of cell tabs 92 having height differences along the first direction.

[0045] Referring to Figure 2a - Figure 2bIn this embodiment, the glue suction assembly 10 further comprises a plurality of supporting telescopic members, which are telescopic along the first direction and abut against the upper side of the suction plate on one end and the lower side of the upper supporting plate 12 on the other end, thereby providing a continuous deformation force to the corresponding suction plate. Specifically, in this embodiment, the supporting telescopic members can be supporting springs, which provide a continuous spring force to the corresponding suction plate. The second suction member 132 and the third suction member 133 each comprise two supporting columns arranged along the third direction, while the first suction member 131 comprises four first supporting columns 1312 arranged at the four corners of the plate surface of the first suction plate 1311. The outer periphery of each supporting column of each suction member is sleeved with a supporting spring, the outer side of the first supporting column 1312 is sleeved with a first supporting spring 1314, the outer side of the second supporting column 1322 is sleeved with a second supporting spring 1324, and the outer side of the third supporting column 1332 is sleeved with a third supporting spring 1334. The lower end of each supporting spring abuts against the upper end of the corresponding suction plate, while the upper end of each supporting spring abuts against the lower end of the upper supporting plate 12. Thus, each supporting spring can provide a continuous downward spring force to the corresponding suction plate through elastic deformation, so as to make the upper protective film 923 adhere more closely to the electrode tab 92 of the battery cell when the upper protective film 923 is applied to the electrode tab 92.

[0046] Those skilled in the art can understand that, although the above describes a scheme of using supporting springs as supporting telescopic members, the supporting telescopic members can also be air cylinders, pneumatic springs or other devices capable of telescoping and providing supporting force.

[0047] In addition, the axial lengths of the corresponding supporting columns of the first suction member 131, the second suction member 132 and the third suction member 133 are different from each other, the length of the first supporting column 1312 of the first suction member 131 located in the middle along the second direction is the shortest, the lengths of the second supporting columns 1322 of the two second suction members 132 located on both sides thereof are relatively longer, and the lengths of the third supporting columns 1332 of the two third suction members 133 located on the outermost sides are the longest. That is, the plurality of suction members are arranged along the second direction at intervals, and the lengths of the adjacent plurality of supporting columns along the first direction increase in turn along the two ends of the second direction. This makes the suction plates of the first suction member 131, the second suction member 132 and the third suction member 133 form a stepped height difference in the first direction, with the middle being higher and the two sides being lower. By setting the height difference between the supporting columns to be adapted to the height difference of each part of the upper surface of the electrode tab 92, the upper protective film 923 suctioned to the glue suction assembly 10 is adapted to the shape of the upper surface of the electrode tab 92.

[0048] Specifically, the height difference between the third suction member 133 and the second suction member 132 is set to be adapted to the thickness of the foil tab 921, so that when the edge portion of the upper protective film 923 suctioned by the third suction member 133 is attached to the edge portion of the lower protective film 924 suctioned by the lower support plate 22, the middle portion of the upper protective film 923 suctioned by the second suction member 132 can be just attached to the portion of the upper surface of the foil tab 921 that is not covered by the outer tab 922. At the same time, the side surface of the third suction member 133 towards the side of the first suction member 131 can also limit the lateral side surface of the foil tab 921, and make the portion of the upper protective film 923 vertically arranged on the side surface towards the side of the first suction member 131 attached to the side surface of the foil tab 921; similarly, the stepped surface between the first suction member 131 and the second suction member 132 also has a similar effect, which will not be described here. Thus, when the upper protective film 923 is attached to the cell tab 92, the bonding area thereof with the cell tab 92 is larger, and the cavity or bubble caused by the mismatch between the upper protective film 923 and the surface shape of the cell tab 92 is reduced.

[0049] Those skilled in the art can understand that, although the above shows a scheme in which the suction assembly 10 is set to include the first suction member 131, the second suction member 132 and the third suction member 133 having different protruding distances relative to the upper support plate 12 along the first direction, and two second suction members 132 and two third suction members 133 are respectively arranged on the lateral sides of the first suction member 131, the present disclosure does not limit the specific number, shape and arrangement of each suction member in the suction assembly 10.

[0050] For example, referring to Figure 4 and Figure 5 , Figure 4 shows an exemplary perspective view of a tab gluing mechanism according to some embodiments of the present disclosure, Figure 5An exemplary sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown. In this embodiment, the suction assembly 10 only includes one first suction accessory 131 and two second suction accessories 132 arranged on both sides of the first suction accessory 131 along the second direction. The general structure of the first suction accessory 131 and the second suction accessory 132 is similar to the previous embodiments, and each includes a support column passing through the guide through hole of the upper support plate 12, a positioning block arranged at the upper end of the support column, and a suction plate fixedly arranged at the lower end of the support column. Different from the previous embodiments, the bottom side of the second suction plate 1321 is further provided with a stop portion 1321c protruding downward along the first direction, and the stop portion 1321c has a stop surface 1321d arranged along the direction of the first suction accessory 131. The stop surface 1321d has the same function as the side surface of the third suction plate 1331 in the previous embodiment, which is to limit the side surface of the foil tab 921 during taping to prevent the battery tab 92 from being skewed during taping. At the same time, the stop surface 1321d also makes the part of the upper protective film 923 vertically arranged on the side of the stop surface 1321d facing the first suction accessory 131 adhere to the side surface of the foil tab 921, so as to enhance the adhesion effect of the upper protective film 923 to the surface of the battery tab 92. Therefore, by arranging only three suction accessories, the structure of the tab taping mechanism 100 is simplified, and the corresponding production and maintenance costs are reduced.

[0051] In some other embodiments, as shown in Figure 6 、 Figure 7a and Figure 7b , Figure 6 An exemplary perspective view of the tab taping mechanism of some embodiments of the present disclosure is shown, Figure 7a An exemplary sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown, Figure 7b An exemplary sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown, Figure 7a An enlarged partial schematic view of part B in FIG. 13B is shown. The upper support plate 12 is provided with an adjusting portion 123 extending along the second direction and a fixed guide slot 125. In this embodiment, the adjusting portion 123 and the fixed guide slot 125 are both long strip holes passing through the upper support plate 12 along the first direction. The first suction accessory 131, the second suction accessory 132, and the third suction accessory 133 each include a corresponding first support screw 1316, a second support screw 1326, a third support screw 1336, and a fixed assembly 1335. The screw rod of each support screw is the support column of the suction accessory, and the screw rod of the support screw is threadedly connected to the corresponding suction plate by passing through the long strip hole of the adjusting portion 123 and being limited relative to the upper support plate 12 by means of the fixed assembly 1335.

[0052] Referring to Figure 6 and Figure 7bFor example, the third suction accessory 133, the fixed assembly 1335 corresponding to each third suction accessory 133 includes a bolted plate 1335a, and a fixed bolt 1335b and a fixed nut 1335c connected to the bolted plate 1335a. The bolted plate 1335a is substantially in the shape of a long strip plate, and three positioning holes 1335e are provided at both ends and the center of the length direction of the bolted plate 1335a. The length direction of the bolted plate 1335a is parallel to the third direction, and the bolted plate 1335a is arranged on the upper side of the upper support plate 12. The screw rod of the fixed bolt 1335b passes through the positioning hole 1335e at the center in the first direction downward, and further passes through the fixed guide groove 125 and is connected and locked with the fixed nut 1335c below. The two third support columns 1332 (i.e. the screw rod of the third support bolt 1336) corresponding to the third suction accessory 133 pass through the positioning holes 1335e at both ends of the bolted plate 1335a and the long hole of the adjusting part 123 in sequence from top to bottom, and are threadedly connected with the third suction plate 1331 below.

[0053] Therefore, the bolted plate 1335a limits the two support columns in the horizontal direction, and the fixed bolt 1335b is adjustably connected to the fixed guide groove 125, so that the position of the corresponding third suction accessory 133 can be adjusted in the second direction. Similarly, the first suction accessory 131 and the second suction accessory 132 are also adjustably connected to the upper support plate 12. This makes the transverse spacing of the first suction accessory 131, the second suction accessory 132 and the third suction accessory 133 adjustable, so that the tab gluing mechanism can be used for gluing processing of various specifications of the battery tab 92, and the compatibility of the tab gluing mechanism is enhanced.

[0054] Those skilled in the art can understand that the above three embodiments respectively describe different technical solutions conceived according to the number of suction accessories of the suction assembly 10 and whether they are adjustable, but the features described in the above three embodiments are not independent of each other, but are also used in combination with each other. For example, in some embodiments not shown, the suction assembly 10 only includes one first suction accessory 131 and two second suction accessories 132 arranged on both sides of the first suction accessory 131 in the second direction of the first suction accessory 131, and the upper support plate 12 on which the suction assembly 10 is arranged includes the fixed guide groove 125, and the first suction accessory 131 and the second suction accessory 132 both include the fixed assembly 1335 for adjusting the spacing therebetween in the second direction. Or in some other embodiments not shown, more position-adjustable suction accessories are arranged to further adapt to different workpiece surface shapes.

[0055] Referring to Figure 8 and Figure 9 , Figure 8An exemplary cross-sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown, in which the suction assembly and the support assembly are relatively separated along the first direction, Figure 9 An exemplary cross-sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown, in which the suction assembly and the support assembly are relatively separated along the first direction, Figure 8 An exemplary cross-sectional view of the tab taping mechanism of some embodiments of the present disclosure is shown, in which the suction assembly and the support assembly are relatively separated along the first direction,

[0056] Referring to Figure 9 When the upper protective film 923 is applied to the upper surface of the tab 92, the suction members respectively suction the corresponding portions of the protective film and sequentially contact the high and low portions of the tab 92. After being pushed by the portions of the tab 92, the suction members are sequentially moved upward relative to the upper support plate 12 according to the contact sequence of the portions of the tab 92. Thus, the suction assembly 10 sequentially applies the portions of the upper protective film 923 to the corresponding surface portions of the tab 92. Since the suction members maintain suction on the upper protective film 923, the protective film is continuously tensioned, thereby reducing the probability of wrinkles when the protective film is deformed and applied to the corresponding surface of the tab 92.

[0057] According to the tab taping mechanism of the embodiments of the present disclosure, the lower support plate for supporting the first side of the tab and the plurality of suction members capable of moving relative to the lower support plate along the first direction and abutting against the tab from the upper side can maintain close contact between the upper protective film and the surface portions of the target tab surface having different heights during taping. Thus, the taping mechanism can adapt to the height difference of the tab surface and improve the application effect on the tab surface having a height difference.

[0058] In addition, referring to Figure 10 , Figure 10An exemplary side view of a tab taping apparatus of some embodiments of the present disclosure is shown. The tab taping apparatus 200 comprises the glue supply mechanism for providing glue to the tab taping mechanism, further comprises a fixed frame 60 and the tab taping mechanism 100 according to the above embodiments disposed on the fixed frame 60. The fixed frame 60 further comprises a protective film supply mechanism 80 and a battery carrying device 70. The tab taping mechanism 100 can obtain the cut protective film from the protective film supply mechanism 80. The battery carrying device 70 is used to send the un-taped battery 90 to the tab taping mechanism 100 and move the taped battery 90 out.

[0059] While the present disclosure has been illustrated and described in detail in the drawings and foregoing description, such illustration and description is to be considered illustrative or exemplary and not restrictive; the present disclosure is not limited to the disclosed embodiments. Various modifications and changes can be made thereto without departing from the spirit and scope of the present disclosure. It is therefore desired that what is covered by the appended claims be protected.

Claims

1. A tab taping mechanism, characterized by, The application relates to a battery tab suction device. The battery tab suction device comprises a support assembly (20) and a suction assembly (10). The support assembly (20) comprises a lower support plate (22) abutting against a first side of the battery tab in a first direction.

2. The tab taping mechanism of claim 1, wherein, The suction assembly (10) is arranged opposite to the support assembly (20) in the first direction.

3. The tab taping mechanism of claim 2, wherein, The suction assembly (10) comprises an upper support plate (12) movable in the first direction.

4. The tab taping mechanism of claim 3, wherein, The suction assembly (10) comprises a plurality of suction accessories movably connected to the upper support plate (12).

5. The tab taping mechanism of claim 2, wherein, The plurality of suction accessories (131, 132, 133) are capable of moving independently of each other relative to the lower support plate (22) in the first direction to abut against a second side of the battery tab opposite to the first side.

6. The tab taping mechanism of claim 3, wherein, The plurality of suction accessories (131, 132, 133) are arranged in sequence along a second direction perpendicular to the first direction. The suction accessory (131, 132, 133) comprises a support column and a suction plate arranged opposite to the upper support plate (12) in the first direction. The support column extends in the first direction and is connected between the upper support plate (12) and the suction plate.

7. The tab taping mechanism of any one of claims 2 to 6, wherein, The suction assembly (10) further comprises a plurality of support telescopic members.

8. The tab taping mechanism of claim 7, wherein, The support telescopic members are telescopic in the first direction. One end of the support telescopic members abuts against the suction plate, and the other end abuts against the upper support plate (12). The support telescopic members comprise support springs. The plurality of support springs are sleeved on the outer periphery of the support column. One end of the support springs abuts against the suction plate, and the other end abuts against the upper support plate (12). The plurality of suction accessories are arranged at intervals along the second direction. The lengths of the adjacent plurality of support columns in the first direction increase in sequence along the two ends of the second direction. The suction assembly (10) comprises a first suction accessory (131) and two second suction accessories (132) arranged on the two sides of the first suction accessory (131) in the second direction. Two third suction accessories (133) are arranged on the two sides of the two second suction accessories (132) in the second direction. The suction plate of the second suction accessory (132) is further provided with a stop portion (1321c) protruding towards the lower support plate (22) in the first direction. The support assembly (20) further comprises a lower driving member (21) drivingly connected with the lower support plate (22) in the first direction. The lower support plate (22) is further provided with a lower suction hole (223). The suction assembly (10) comprises an upper driving member (11) drivingly connected with the upper support plate (12) in the first direction. The suction plate is provided with a vacuum suction hole. The vacuum suction hole and the lower suction hole (223) provide negative pressure on the two sides of the battery tab, respectively. The upper support plate (12) is provided with an adjusting portion (123) extending in the second direction. The plurality of support columns are adjustably connected to the adjusting portion (123).

9. The tab taping mechanism of claim 8, wherein, The adsorption accessory (131, 132, 133) comprises a fixing assembly (1335), the adjusting part (123) is a long hole penetrating the upper support plate (12) and extending along the second direction, one end of the support column is threadedly connected with the adsorption plate through the long hole, and the other end is detachably connected with the fixing assembly (1335) to limit the position relative to the upper support plate (12).

10. A tab-applying device, characterized in that, The application further discloses a glue supply mechanism for providing glue for the tab gluing mechanism.

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