Gluing device and battery production line

Abstract

The present application relates to a gluing device and a battery production line, wherein the gluing device comprises: a conveying mechanism for carrying a plurality of pole pieces with pole ears and conveying the plurality of pole pieces one by one to a gluing station, wherein the connection portion between the pole piece and the pole ear has a first surface and a second surface relative to each other in the thickness direction; a first gluing mechanism, comprising a first adsorbing member for adsorbing a first tape, wherein the first adsorbing member can move toward the direction close to the gluing station to adhere the first tape to the first surface; a second gluing mechanism, comprising a second supporting member and a second adsorbing member for adsorbing a second tape, wherein the second adsorbing member can move toward the direction close to the gluing station to adhere the second tape to the second surface. The gluing device of the present application solves the problem that the pole piece with the tape is offset relative to the tape running direction during the winding and unwinding process, thereby causing the quality of the pole piece stacking to decrease, thereby effectively improving the quality of the pole piece stacking and improving the quality of battery production.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a glue sticking device and a battery production line. Background Art

[0002] During the battery production process, when the battery pole sheets are stacked and formed, the roots of the ears of adjacent positive pole sheets are prone to overlap with the ends of the negative pole sheets, causing a short circuit between the positive and negative pole sheets. It is necessary to apply glue to the roots of the ears of the pole sheets to reduce the probability of a short circuit between adjacent positive and negative pole sheets.

[0003] In the related art, there are limitations in the method of gluing the root of the pole ear of the pole piece. After the pole ear root is glued, it will affect the molding quality of the subsequent pole sheet stacking and reduce the battery production quality. Summary of the invention

[0004] The present application aims to solve the problem that the existing gluing method of gluing a continuous tape at the root of each pole lug at the edge of the pole sheet material strip causes the subsequent pole sheet stacking molding quality to decrease, thereby reducing the battery production quality. To this end, the present application provides a gluing device and a battery production line.

[0005] In a first aspect, the present application provides a glue sticking device, comprising:

[0006] A conveying mechanism, used for carrying a plurality of pole pieces with pole ears and conveying the plurality of pole pieces one by one to a glue sticking station, wherein a connection portion between the pole piece and the pole ear has a first surface and a second surface opposite to each other in a thickness direction thereof;

[0007] A first glue sticking mechanism includes a first adsorbing member for adsorbing the first adhesive tape, wherein the first adsorbing member can move toward the direction close to the glue sticking station to stick the first adhesive tape to the first surface;

[0008] The second gluing mechanism includes a second supporting member and a second adsorbing member for adsorbing the second tape, the second adsorbing member can move toward the direction close to the gluing station to adhere the second tape to the second surface, the second supporting member and the second adsorbing member can alternately correspond to the second surface in the thickness direction, and the second supporting member can move toward the direction close to the gluing station to support the second surface when the first adsorbing member adheres the first tape to the first surface.

[0009] The adhesive laminating device according to the first aspect of the present application has at least the following beneficial effects:

[0010] The gluing device of the present application is arranged by the cooperation of a conveying mechanism, a first gluing mechanism and a second gluing mechanism. By gluing multiple pole pieces with pole ears one by one, each pole piece with tape can be directly conveyed by the conveying mechanism to the stacking station in the shape of a stack for stacking. Compared with the existing gluing method of sticking continuous tape on the roots of each pole ear at the edge of the pole piece material strip, the action of winding and unwinding the pole piece with tape is omitted, thereby solving the problem of reduced quality of pole piece stacking caused by the deviation of the pole piece with tape relative to the tape running direction during the winding and unwinding process of the pole piece with tape, effectively improving the quality of pole piece stacking and improving the quality of battery production.

[0011] Moreover, the glue sticking device of the embodiment of the present application sets a second support member, and enables the second support member and the second adsorbent member to alternately correspond to the second surface in the thickness direction, so that the second support member can support the second surface when the first adsorbent member adheres the first tape to the first surface, and the first adsorbent member can support the first surface when the second adsorbent member adheres the second tape to the second surface, thereby reducing the probability of sagging, warping and bending deformation of the electrode piece during the glue sticking process, reducing the risk of cracking and tearing of the first tape and the second tape after being adhered to the corresponding surfaces on the electrode piece, and improving the pasting quality of the first tape and the second tape.

[0012] In some embodiments, the first adhesive tape attaching mechanism further comprises a first buffer structure connected to the first adsorbent, and the first buffer structure is used to apply a first elastic force to the first adsorbent when the first adsorbent attaches the first adhesive tape to the first surface;

[0013] The second adhesive tape mechanism further includes a second buffer structure connected to the second adsorbent, and the second buffer structure is used to apply a second elastic force to the second adsorbent when the second adsorbent adheres the second adhesive tape to the second surface.

[0014] With such a configuration, the pressure on the first surface of the pole piece increases gradually and slowly instead of suddenly and rapidly, which reduces the probability of the first surface of the pole piece being pulled or torn due to overpressure, reduces the risk of damage to the pole piece structure, and improves the pasting quality of the first adhesive tape. The pressure on the second surface of the pole piece increases gradually and slowly instead of suddenly and rapidly, which reduces the probability of the second surface of the pole piece being pulled or torn due to overpressure, reduces the risk of damage to the pole piece structure, and improves the pasting quality of the second adhesive tape.

[0015] In some embodiments, the first adsorbent is capable of supporting the first surface when the second adsorbent adheres the second tape to the second surface, and when the first adsorbent supports the first surface, the first elastic force is greater than the second elastic force.

[0016] With such a configuration, the first adsorbent can effectively maintain the supporting state of the first surface on the electrode piece, so that the first adsorbent and the second adsorbent can respectively maintain the pressing state of the first surface and the second surface on the electrode piece, so that the forces acting on the first surface and the second surface on the electrode piece are relatively uniform, thereby reducing the probability of the first adsorbent being displaced and separated from the support for the first surface, thereby reducing the risk of the second surface on the electrode piece being torn and improving the adhesion quality of the second tape.

[0017] In some embodiments, the first adhesive mechanism further includes a first connecting member, the first buffer structure includes a first spring, the first adsorption member is slidably connected to the first connecting member, and the first spring is sandwiched between the first connecting member and the first adsorption member;

[0018] The second glue-applying mechanism also includes a second connecting member, the second buffer structure includes a second spring, the second adsorption member is slidably connected to the second connecting member, the second spring is clamped between the second connecting member and the second adsorption member, and the wire diameter of the first spring is greater than the wire diameter of the second spring.

[0019] Such a configuration enables the first adsorbent to effectively maintain the state of supporting the first surface on the pole piece, so that the forces acting on the first surface and the second surface of the pole piece are relatively uniform, reducing the probability of the first adsorbent being displaced and separated from the support for the first surface, thereby reducing the risk of the second surface on the pole piece being torn and improving the adhesion quality of the second tape.

[0020] In some embodiments, the first gluing mechanism also includes a first supporting member, and the first supporting member and the first adsorbing member can alternately correspond to the first surface in the thickness direction, and the first supporting member can move toward the direction close to the gluing station to support the first surface when the second adsorbing member adheres the second tape to the second surface.

[0021] In this way, the first support member supports the first surface when the second adsorbent sticks the second tape to the second surface, thereby reducing the probability of the pole piece warping or bending when the second adsorbent sticks the second tape to the second surface of the pole piece. At the same time, the first surface and the second surface of the pole piece are subjected to relatively uniform force when the second adsorbent sticks the second tape to the second surface of the pole piece, thereby reducing the risk of cracking or tearing of the second tape after it is stuck to the second surface, thereby improving the sticking quality of the second tape.

[0022] In some embodiments, the first gluing mechanism also includes a first driving member, and an output end of the first driving member is connected to the first supporting member and the first adsorbing member to drive the first supporting member and the first adsorbing member to rotate around a first axis so that the first supporting member and the first adsorbing member alternately correspond to the first surface in the thickness direction.

[0023] With such arrangement, the first support member and the first adsorption member can alternately abut against the first surface of the pole piece in a short time, thereby improving the pasting quality of the first tape and the second tape and also improving the pasting efficiency of the first tape and the second tape.

[0024] In some embodiments, the second gluing mechanism also includes a second driving member, and the output end of the second driving member is connected to the second supporting member and the second adsorbing member to drive the second supporting member and the second adsorbing member to rotate around a second axis so that the second supporting member and the second adsorbing member alternately correspond to the second surface in the thickness direction.

[0025] Such an arrangement enables the second support member and the second adsorption member to alternately abut against the second surface of the pole piece in a short time, thereby improving the pasting quality of the first tape and the second tape and also improving the pasting efficiency of the first tape and the second tape.

[0026] In some embodiments, the adhesive application device further comprises:

[0027] A first detection mechanism is used to obtain spatial position information of the electrode at the glue sticking station;

[0028] The first deviation-correcting mechanism is drivingly connected to the first adsorbent and is used for adjusting the spatial position of the first adsorbent according to the position information obtained by the first detection mechanism so that the first tape on the first adsorbent is opposite to the first surface.

[0029] With such arrangement, the first adsorption member moves linearly to accurately adhere the first adhesive tape to the first surface of the electrode piece, thereby improving the adhesion quality of the first adhesive tape.

[0030] In some embodiments, the adhesive application device further comprises:

[0031] A second detection mechanism is used to obtain spatial position information of the electrode at the glue sticking station;

[0032] The second deviation-correcting mechanism is drivingly connected to the second adsorbent and is used for adjusting the spatial position of the second adsorbent according to the position information obtained by the second detection mechanism so that the second tape on the second adsorbent is opposite to the second surface.

[0033] With such arrangement, the second adsorption member can move linearly to accurately adhere the second tape to the second surface of the electrode piece, thereby improving the adhesion quality of the second tape.

[0034] In some embodiments, the adhesive application device further comprises:

[0035] The pole piece feeding mechanism is used for unwinding and pulling the pole piece material strip to move along a first preset direction, and the conveying mechanism is docked with the end of the pole piece feeding mechanism;

[0036] The die-cutting mechanism is arranged between the electrode sheet feeding mechanism and the conveying mechanism, and is used for cutting the electrode sheet material strip into a plurality of electrode sheets with electrode ears.

[0037] Such an arrangement eliminates the need for the action of winding and unwinding the electrode sheets with tape, thereby solving the problem of reduced quality of electrode stacking caused by the electrode sheets with tape being offset relative to the tape running direction during the winding and unwinding process, effectively improving the quality of electrode stacking and improving battery production quality.

[0038] In some embodiments, the adhesive application device further comprises:

[0039] A first glue supply mechanism, used for supplying a first glue material;

[0040] A first adhesive dispensing mechanism, comprising a first clamping member and a first cutting member, wherein the first clamping member is used to clamp and drive the head of the first adhesive material to move along a second preset direction to pull the first adhesive material out to a first preset length, and the first cutting member is used to cut the first adhesive material pulled out to the first preset length to obtain the first adhesive tape;

[0041] Wherein, the first adsorption component can adsorb the first adhesive tape when the first cutting component cuts the first adhesive material.

[0042] With such arrangement, the first adsorption member continuously adheres the first adhesive tape to the corresponding positions of the pole pieces at the gluing station one by one, thereby improving the gluing efficiency of batch pole pieces.

[0043] In some embodiments, the first clamping member includes a first clamping portion and a second clamping portion that can be relatively far away from or close to each other, the first clamping portion is used to contact the back adhesive surface of the first adhesive material, the second clamping portion is used to contact the adhesive surface of the first adhesive material, and the portion where the second clamping portion contacts the first adhesive material is constructed as a tooth-like structure.

[0044] Such an arrangement can reduce the contact area between the second clamping portion and the adhesive surface of the first adhesive material, reduce the risk of the second clamping portion and the first adhesive material sticking together, and improve the smoothness of the first adhesive tape feeding.

[0045] In some embodiments, the first clamping portion is used to form a line contact with the adhesive backing surface of the first adhesive material.

[0046] Such a configuration enables the first clamping portion to contact multiple locations of the adhesive back surface of the first adhesive material while enabling the first clamping portion to apply a greater pressing force to the adhesive back surface of the first adhesive material, so that the first clamping portion and the second clamping portion cooperate to stably clamp the first adhesive material, thereby reducing the probability of slipping between the first adhesive material and the first clamping portion, and also reducing the risk of the adhesive back surface of the first adhesive material being damaged due to excessive force.

[0047] In some embodiments, the first glue supply mechanism further includes a second clamping member, which is disposed between the first glue supply mechanism and the first cutting member, and is used to clamp a portion of the first glue material close to a position cut by the first cutting member.

[0048] In this way, the two ends of the portion of the first adhesive material that is pulled out of the first preset length are kept in a tensioned state under the synchronous clamping action of the first clamping member and the second clamping member, so that the first cutting member can smoothly cut off the portion of the first adhesive material that is pulled out of the first preset length, thereby reducing the risk that the portion of the first adhesive material that is pulled out of the first preset length is in a loose state and difficult to be accurately cut off by the first cutting member.

[0049] In some embodiments, the second clamping member includes a third clamping portion and a fourth clamping portion that can be relatively moved away or closer, the third clamping portion is used to contact the back adhesive surface of the first adhesive material, the fourth clamping portion is used to contact the adhesive surface of the first adhesive material, and the portion where the fourth clamping portion contacts the first adhesive material is constructed as a tooth-like structure.

[0050] Such a configuration can reduce the contact area between the fourth clamping portion and the bonding surface of the first adhesive material, reduce the risk of the fourth clamping portion and the first adhesive material sticking together, and improve the smoothness of the first adhesive material moving along the second preset direction and the first tape feeding.

[0051] In some embodiments, the third clamping portion is used to form a surface contact with the adhesive backing surface of the first adhesive material.

[0052] Such arrangement increases the contact area between the third clamping portion and the adhesive backing surface of the first adhesive material, and can also reduce the probability of slippage between the first adhesive material and the third clamping portion, so that the two ends of the portion of the first adhesive material pulled out of the first preset length are kept in a tensioned state under the synchronous clamping action of the first clamping member and the second clamping member, so that the first cutting member can smoothly cut off the portion of the first adhesive material pulled out of the first preset length, reducing the risk that the portion of the first adhesive material pulled out of the first preset length is in a loose state and difficult to be accurately cut off by the first cutting member.

[0053] In some embodiments, the adhesive application device further comprises:

[0054] A second glue supply mechanism, used for supplying a second glue material;

[0055] A second adhesive dispensing mechanism, comprising a third clamping member and a second cutting member, wherein the third clamping member is used to clamp and drive the head of the second adhesive material to move along a third preset direction to pull the second adhesive material out to a second preset length, and the second cutting member is used to cut the second adhesive material pulled out to the second preset length to obtain the second adhesive tape;

[0056] The second adsorbing member can adsorb the second adhesive tape when the second cutting member cuts the second adhesive material.

[0057] With such arrangement, the second adhesive tape can be continuously supplied to the second adsorbent, so that the second adsorbent continuously adheres the second adhesive tape to the corresponding positions of the pole pieces at the gluing station one by one, thereby improving the gluing efficiency of batch pole pieces.

[0058] In some embodiments, the glue sticking device further comprises a frame, and the first glue supply mechanism and the second glue supply mechanism are symmetrically distributed on the frame;

[0059] The first glue dispensing mechanism and the second glue dispensing mechanism are symmetrically distributed on the frame.

[0060] With such an arrangement, the first adhesive tape and the second adhesive tape can be supplied to the first adsorption member and the second adsorption member at the same time, thereby improving the gluing efficiency of the electrode sheets.

[0061] In a second aspect, the present application provides a battery production line, including the glue sticking device described above.

[0062] The battery production line according to the second aspect of the present application has at least the following beneficial effects:

[0063] The battery production line of the present application, since it is equipped with the above-mentioned gluing device, also has the same technical effect brought by the above-mentioned gluing device, that is, through the cooperative arrangement of the conveying mechanism, the first gluing mechanism and the second gluing mechanism, by gluing multiple pole sheets with pole ears one by one, each pole sheet with tape can be directly conveyed by the conveying mechanism to the stacking station for stacking in the shape of a stack for stacking. Compared with the existing gluing method of sticking continuous tape on the roots of each pole ear at the edge of the pole sheet material strip, the action of winding and unwinding the pole sheet with tape is omitted, thereby solving the problem of reduced quality of pole sheet stacking caused by the deviation of the pole sheet with tape relative to the tape running direction during the winding and unwinding process, effectively improving the quality of pole sheet stacking and improving the quality of battery production.

[0064] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0066] Figure 1 Schematic diagram of the matching structure of the pole piece, the first tape and the second tape in the embodiment of the present application Figure 1 .

[0067] Figure 2 Schematic diagram of the matching structure of the pole piece, the first tape and the second tape in the embodiment of the present application Figure 2 .

[0068] Figure 3 The structure of the adhesive bonding device of the embodiment of the present application is shown in FIG. Figure 1 .

[0069] Figure 4 It is a schematic diagram of the coordination structure between the first gluing mechanism and the pole piece of the embodiment of the present application.

[0070] Figure 5 The structure of the adhesive bonding device of the embodiment of the present application is shown in FIG. Figure 2 .

[0071] Figure 6 It is a schematic diagram of the coordination structure of the first gluing mechanism, the second gluing mechanism and the pole piece according to an embodiment of the present application.

[0072] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0073] Figure 8 It is a schematic diagram of another matching structure of the first gluing mechanism, the second gluing mechanism and the pole piece in an embodiment of the present application.

[0074] Fig. 9 This is a schematic structural diagram of the first adhesive bonding mechanism of an embodiment of the present application.

[0075] Fig.10 This is a schematic structural diagram of the second gluing mechanism of an embodiment of the present application.

[0076] Fig.11This is a schematic diagram of the coordination structure between the first glue supply mechanism and the first glue dispensing mechanism according to an embodiment of the present application.

[0077] Fig.12 for Fig.11 A partial enlarged view of point B in the middle.

[0078] Fig.13 for Fig.11 A partial enlarged view of point C in the middle.

[0079] Fig.14 It is a schematic diagram of the coordination structure of the first glue supply mechanism, the first glue lowering mechanism, the second glue supply mechanism and the second glue lowering mechanism of the embodiment of the present application.

[0080] Fig.15 for Fig.14 A partial enlarged view of point D in the middle.

[0081] Fig.16 This is a partial structural schematic diagram of the glue application device according to an embodiment of the present application.

[0082] Explanation of reference numerals: conveying mechanism 100; conveyor belt 110; first gluing mechanism 200; first adsorption member 210; first support member 220; first buffer structure 230; first spring 231; first connecting member 240; first driving member 250; third driving member 260; second gluing mechanism 300; second adsorption member 310; second support member 320; second buffer structure 330; second spring 331; second connecting member 340; second driving member 350; fourth driving member 360; first detection mechanism 400; second detection mechanism 500; frame 600; second deviation correction mechanism 700; first deviation correction mechanism 800; pole piece 900; pole ear 910; first surface 911; second surface 912; pole piece feeding mechanism 10; mold Cutting mechanism 20; first glue supply mechanism 30; first glue lowering mechanism 40; first clamping member 41; first clamping portion 41a; second clamping portion 41b; first cutting member 42; second clamping member 43; third clamping portion 43a; fourth clamping portion 43b; fifth driving member 44; sixth driving member 45; seventh driving member 46; eighth driving member 47; second glue supply mechanism 50; second glue lowering mechanism 60; third clamping member 61; second cutting member 62; first adhesive tape 101; second adhesive tape 102; first adhesive material 103; second adhesive material 104; pole piece tape 105; glue sticking station R1; thickness direction Z; first axis X1; second axis X2; first preset direction Y1; second preset direction Y2; third preset direction Y3; fourth preset direction Y4. DETAILED DESCRIPTION

[0083] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0084] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0085] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0086] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0087] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0088] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0089] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0090] The battery is composed of one or more battery cells. For each battery, the battery cells that make up the battery can be connected in series, in parallel, or in mixed connection. Mixed connection means that the battery cells are connected in series and in parallel.

[0091] A battery cell is the smallest unit that makes up a battery. In the structure of a battery cell of a solid-state laminated battery, it includes a shell and an electrode assembly. The electrode assembly is the component where the electrochemical reaction occurs in the battery cell. The electrode assembly includes a positive electrode sheet and a negative electrode sheet. The shell may include one or more electrode assemblies, and the electrode assembly is mainly formed by stacking positive and negative electrode sheets.

[0092] During the production process of laminated batteries, when the battery pole sheets are laminated and formed, the roots of the ears of adjacent positive pole sheets are prone to overlap with the ends of the negative pole sheets, causing a short circuit between the positive and negative pole sheets. It is necessary to apply glue to the roots of the ears of the pole sheets to reduce the probability of a short circuit between adjacent positive and negative pole sheets.

[0093] In the related art, the tabs on the strips are usually glued during the process of die-cutting the tabs, that is, a continuous tape is affixed to the roots of the tabs at the edge of the strips, and then the strips with the continuous tape are rolled up. Due to the thickness difference between the tabs and the tabs after glue affixing, irregular areas such as cones appear in the rolled strips after the strips are rolled up.

[0094] When the pole piece material strip with continuous tape is unwound, the pole piece material strip is subjected to uneven force during unwinding due to the presence of irregular areas such as cones in the coiled material, causing the pole piece material strip to deviate from the tape running direction, affecting the cutting accuracy of the die-cutting device in cutting the pole piece material strip in the tape running into individual pole pieces, resulting in a decrease in the quality of pole piece stacking and lower battery production quality.

[0095] Based on this, in order to address the problem that the current gluing method of sticking continuous tape at the roots of each pole ear at the edge of the pole sheet material strip causes the subsequent pole sheet stacking molding quality to decline, thereby reducing the battery production quality, one or more embodiments of the present application provide a gluing device, which is arranged through the cooperation of a conveying mechanism, a first gluing mechanism and a second gluing mechanism. By gluing multiple pole sheets with pole ears one by one, each pole sheet with tape can be directly conveyed by the conveying mechanism to the stacking station in the shape of a stack for stacking molding. Compared with the existing gluing method of sticking continuous tape at the roots of each pole ear at the edge of the pole sheet material strip, the action of winding and unwinding the pole sheet with tape is omitted, thereby solving the problem that the pole sheet with tape is offset relative to the tape running direction during the winding and unwinding process, causing the pole sheet stacking molding quality to decline, effectively improving the pole sheet stacking molding quality and improving the battery production quality.

[0096] See also Figure 1 , Figure 2 and Figure 3 , an embodiment of the present application provides a gluing device, which includes a conveying mechanism 100 , a first gluing mechanism 200 and a second gluing mechanism 300 .

[0097] The conveying mechanism 100 is used to carry multiple pole pieces 900 with pole tabs 910 and convey the multiple pole pieces 900 one by one to the glue laminating station R1. The connection part between the pole piece 900 and the pole tab 910 has a first surface 911 and a second surface 912 opposite to each other in the thickness direction Z thereof.

[0098] See also Figure 4 The first gluing mechanism 200 includes a first adsorption member 210 for adsorbing the first adhesive tape 101 . The first adsorption member 210 can move toward the direction close to the gluing station R1 to adhere the first adhesive tape 101 to the first surface 911 .

[0099] See also Figure 5 , Figure 6 and Figure 7 The second gluing mechanism 300 includes a second adsorption member 310 for adsorbing the second adhesive tape 102 . The second adsorption member 310 can move toward the direction close to the gluing station R1 to adhere the second adhesive tape 102 to the second surface 912 .

[0100] In this application, see Figure 1 and Figure 2 After the pole piece 900 is die-cut to form the pole ear 910 at the edge, the connecting part between the pole piece 900 and the pole ear 910 is the root of the pole ear 910, and the relative first surface 911 and second surface 912 of the connecting part between the pole piece 900 and the pole ear 910 in the thickness direction Z are the front and back sides of the area jointly defined by the end of the pole piece 900 and the root of the pole ear 910. After the first adsorbent 210 sticks the first tape 101 to the first surface 911, the first tape 101 covers the front side of the end of the pole piece 900 and the root of the pole ear 910; after the second adsorbent 310 sticks the second tape 102 to the second surface 912, the second tape 102 covers the back side of the end of the pole piece 900 and the root of the pole ear 910.

[0101] In this way, when the electrode sheets 900 are laminated, the isolation effect of the first tape 101 and the second tape 102 can effectively reduce the probability of short circuit between the roots of the ears of the adjacent positive electrode sheets and the ends of the negative electrode sheets.

[0102] It should also be noted that in the present application, the first tape 101 and the second tape 102 are both sheets, such as films, release tapes, and the first tape 101 and the second tape 102 are both insulating structures. Exemplarily, the first tape 101 and the second tape 102 are both release tapes, that is, the surface of the first tape 101 and the pole piece 900 is a bonding surface, which has adhesive properties, and the surface of the first tape 101 away from the pole piece 900 is a back adhesive surface, which can also be understood as a release paper surface, and the back adhesive surface does not have adhesive properties. The structure of the second tape 102 is consistent with that of the first tape 101, and will not be repeated.

[0103] It should be noted that see Figure 3 In the present application, the conveying mechanism 100 may be, but is not limited to, a conveyor belt, a conveyor roller, a linear module, or other power conveying mechanism with load-bearing and conveying functions. The starting end and the end of the conveying mechanism 100 may be connected to the electrode unloading station and the lamination station, respectively. A gluing station R1 is set on the conveying path of the electrode 900. The gluing station R1 is located between the electrode unloading station and the lamination station. The first gluing mechanism 200 and the second gluing mechanism 300 are set at the gluing station R1.

[0104] A pole piece feeding mechanism 10 and a die-cutting mechanism 20 can be set at the pole piece unloading station docked at the starting end of the conveying mechanism 100. The pole piece feeding mechanism 10 is used to unwind and pull the pole piece strip 105 to move along the first preset direction Y1. The die-cutting mechanism 20 is arranged between the pole piece feeding mechanism 10 and the conveying mechanism 100. The die-cutting mechanism 20 is used to cut the pole piece strip 105 into a plurality of pole pieces 900 with pole ears 910.

[0105] In this way, the conveying mechanism 100 receives the electrode sheets 900 with the electrode ears 910 one by one and conveys the plurality of electrode sheets 900 with the electrode ears 910 to the gluing station R1 one by one, so that the first adsorption component 210 and the second adsorption component 310 perform glue-bonding processing on the single electrode sheet 900 at the gluing station R1, so that the glue-bonded electrode sheets 900 can be directly conveyed by the conveying mechanism 100 to the stacking station for stacking and forming.

[0106] In addition, it should be noted that in the present application, when the electrode piece 900 with the electrode ear 910 is carried on the surface of the conveying mechanism 100, the electrode ear 910 and the end of the electrode piece 900 protrude from the edge of the surface of the conveying mechanism 100, that is, when the electrode piece 900 with the electrode ear 910 moves along the conveying direction, the electrode ear 910 and the end of the electrode piece 900 are in a suspended state, thereby providing an escape space for the first adsorbent 210 and the second adsorbent 310 to move to the gluing station R1, so that the first adsorbent 210 and the second adsorbent 310 can smoothly stick the first tape 101 and the second tape 102 to the first surface 911 and the second surface 912 respectively.

[0107] It should be noted that the gluing actions of the first adsorption member 210 and the second adsorption member 310 can be performed simultaneously or one after another.

[0108] Exemplarily, the first adsorbent 210 adheres the first tape 101 to the first surface 911 of the pole piece 900 and the second adsorbent 310 adheres the second tape 102 to the second surface 912 of the pole piece 900 are performed sequentially, which can reduce the risk of tearing between the first surface 911 and the second surface 912 of the pole piece 900.

[0109] It should also be noted that, in the present application, the number of the gluing stations R1, the first gluing mechanism 200 and the second gluing mechanism 300 is not limited. For example, there can be multiple gluing stations R1, and each gluing station R1 is distributed with a pair of first gluing mechanisms 200 and second gluing mechanisms 300. After the conveying mechanism 100 synchronously conveys multiple pole pieces 900 with pole ears 910 to the corresponding gluing stations R1, the first gluing mechanism 200 and the second gluing mechanism 300 glue the pole pieces 900 on the corresponding gluing stations R1.

[0110] In this way, the gluing process of multiple pole pieces 900 is completed at one time, which improves the efficiency of gluing multiple pole pieces 900, and then improves the efficiency of pole piece stacking, thereby improving the battery production efficiency.

[0111] It is easy to understand that, see Figure 3 The gluing process of the gluing device of the present application on the electrode 900 is as follows:

[0112] After the conveying mechanism 100 conveys the plurality of pole pieces 900 with pole ears 910 to the gluing station R1 one by one, the conveying mechanism 100 stops working, and the first adsorbing member 210 adsorbing the first tape 101 moves toward the direction close to the gluing station R1, so that the first tape 101 is attached to the first surface 911 of the pole piece 900. The second adsorbing member 310 moves toward the direction close to the gluing station R1, so that the second tape 102 is attached to the second surface 912 of the pole piece 900. Then, the conveying mechanism 100 continues to work, so that each pole piece 900 attached with tape is directly conveyed to the lamination station in the shape of a stack for lamination molding.

[0113] In this way, by cooperating with the conveying mechanism 100, the first gluing mechanism 200 and the second gluing mechanism 300, by gluing multiple pole sheets 900 with pole ears 910 one by one, each pole sheet 900 with tape can be directly conveyed by the conveying mechanism 100 to the stacking station for stacking in the shape of a stack for stacking. Compared with the existing gluing method of sticking a continuous tape on the roots of each pole ear at the edge of the pole sheet material strip, the action of winding and unwinding the pole sheet 900 with tape is omitted, thereby solving the problem of reduced quality of pole sheet stacking caused by the deviation of the pole sheet 900 with tape relative to the tape running direction during the winding and unwinding process, effectively improving the quality of pole sheet stacking and improving battery production quality.

[0114] In some embodiments of the present application, see Figure 5 , Figure 6 , Figure 7 and Figure 8 The second gluing mechanism 300 also includes a second support member 320. The second support member 320 and the second adsorption member 310 can alternately correspond to the second surface 912 in the thickness direction Z, and the second support member 320 can move in the direction close to the gluing station R1 to support the second surface 912 when the first adsorption member 210 adheres the first tape 101 to the first surface 911.

[0115] It should be noted that the conveying mechanism 100 includes a conveyor belt 110 for carrying and conveying the electrode sheet 900. When the electrode sheet 900 having the electrode ear 910 is conveyed to the glue laminating station R1 by the conveyor belt 110, the electrode ear 910 and the end of the electrode sheet 900 protrude from the surface edge of the conveyor belt 110, providing an escape space for the first adsorption member 210 and the second adsorption member 310 to move to the glue laminating station R1.

[0116] Specifically, see Figure 6 , Figure 7 The second gluing mechanism 300 also includes a second connecting member 340 and a second driving member 350. The second supporting member 320 and the second adsorbing member 310 are both arranged on the second connecting member 340. The output end of the second driving member 350 is connected to the second connecting member 340 to drive the second supporting member 320 and the second adsorbing member 310 to rotate around the second axis X2 through the second connecting member 340, so that the second supporting member 320 and the second adsorbing member 310 alternately correspond to the second surface 912 in the thickness direction Z.

[0117] The second driving member 350 may be a rotating driving member such as an electric motor, and the second axis X2 corresponds to the rotation axis of the second driving member 350 .

[0118] See also Figure 6 and Figure 7 The second gluing mechanism 300 also includes a fourth driving member 360, the output end of the fourth driving member 360 is connected to the second driving member 350 to drive the second driving member 350 to rise and fall in the thickness direction Z, so that the second driving member 350, the second connecting member 340 connected to the output end of the second driving member 350, and the second supporting member 320 and the second adsorption member 310 arranged on the second connecting member 340 move synchronously toward or away from the gluing station R1.

[0119] The fourth driving member 360 may be a cylinder, a hydraulic cylinder, an electric push rod, etc., or a driving structure in which a motor and a transmission assembly cooperate, and the transmission assembly may be a bidirectional lead screw, a gear rack, etc. Exemplarily, the fourth driving member 360 is a driving structure in which a servo motor and a bidirectional lead screw cooperate to improve the accuracy and stability of the lifting motion of the second supporting member 320 and the second adsorbing member 310.

[0120] It should be noted that see Figure 7 and Figure 8 When the conveying mechanism 100 conveys the electrode sheet 900 with the electrode ear 910 thereon to the glue laminating station R1, the electrode ear 910 and the end of the electrode sheet 900 protrude from the edge of the conveying mechanism 100, that is, at the glue laminating station R1, the opposite first surface 911 and the second surface 912 on the electrode sheet 900 have no corresponding structural support.

[0121] At this time, the second driving member 350 drives the second connecting member 340 to rotate around the second axis X2, so that the second supporting member 320 on the second connecting member 340 is opposite to the second surface 912 on the pole piece 900, and the second adsorption member 310 on the second connecting member 340 and the second surface 912 on the pole piece 900 are staggered in the up and down directions.

[0122] Then, the fourth driving member 360 drives the second driving member 350 to move toward the gluing station R1, thereby driving the second connecting member 340 and the second supporting member 320 thereon to move to the gluing station R1, so that the second supporting member 320 abuts against the second surface 912 on the pole piece 900, so as to support the second surface 912 on the pole piece 900 through the second supporting member 320.

[0123] During the process of the second support member 320 moving toward the gluing station R1, the first adsorption member 210 also moves toward the gluing station R1, and after the second support member 320 supports the second surface 912 on the electrode piece 900, it is pressed against the first surface 911 on the electrode piece 900. The first adsorption member 210 continues to move downward to stick the first tape 101 on it to the first surface 911.

[0124] It can be understood that the second support member 320 serves to support the second surface 912 when the first adsorbent 210 adheres the first tape 101 to the first surface 911, thereby reducing the probability of the electrode 900 sagging or bending and deforming when the first adsorbent 210 adheres the first tape 101 to the first surface 911 on the electrode 900. At the same time, the first surface 911 and the second surface 912 on the electrode 900 are subjected to relatively uniform force when the first adsorbent 210 adheres the first tape 101 to the first surface 911 on the electrode 900, thereby reducing the risk of cracking or tearing of the first tape 101 after being adhered to the first surface 911, and improving the adhesion quality of the first tape 101.

[0125] It should also be noted that after the first adsorbent 210 stably adheres the first tape 101 to the first surface 911 , the first adsorbent 210 breaks the vacuum, releases the adsorption of the first tape 101 , and maintains a state of contact with the first surface 911 .

[0126] Then, the fourth driving member 360 drives the second driving member 350 to move in a direction away from the gluing station R1, so that the second supporting member 320 is separated from the second surface 912 on the pole piece 900. When the fourth driving member 360 drives the second supporting member 320 to move to a certain distance between the second supporting member 320 and the second surface 912 on the pole piece 900, the second driving member 350 drives the second connecting member 340 to rotate around the second axis X2, so that the second adsorption member 310 on the second connecting member 340 is directly opposite to the second surface 912 on the pole piece 900, and the second supporting member 320 on the second connecting member 340 and the second surface 912 on the pole piece 900 are staggered in the up and down directions.

[0127] Then, the fourth driving member 360 again drives the second driving member 350 to move toward the gluing station R1, thereby driving the second connecting member 340 and the second adsorption member 310 thereon to move to the gluing station R1, so that the second adsorption member 310 sticks the second tape 102 thereon to the second surface 912 on the pole piece 900.

[0128] It can be understood that since the first adsorbent 210 maintains a state of abutting the first surface 911 after stably sticking the first tape 101 to the first surface 911, the first adsorbent 210 plays a role of supporting the first surface 911 when the second adsorbent 310 sticks the second tape 102 to the second surface 912, thereby reducing the probability of the electrode 900 being warped or bent when the second adsorbent 310 sticks the second tape 102 to the second surface 912 on the electrode 900. At the same time, the first surface 911 and the second surface 912 on the electrode 900 are subjected to relatively uniform force when the second adsorbent 310 sticks the second tape 102 to the second surface 912 on the electrode 900, thereby reducing the risk of cracking or tearing of the second tape 102 after being stuck to the second surface 912, thereby improving the sticking quality of the second tape 102.

[0129] It is not difficult to understand that the gluing device of the embodiment of the present application is provided with a second support member 320, and enables the second support member 320 and the second adsorption member 310 to alternately correspond to the second surface 912 in the thickness direction Z, so that the second support member 320 can support the second surface 912 when the first adsorption member 210 adheres the first tape 101 to the first surface 911, and enables the first adsorption member 210 to support the first surface 911 when the second adsorption member 310 adheres the second tape 102 to the second surface 912, thereby reducing the probability of sagging, warping and bending deformation of the electrode 900 during the gluing process, reducing the risk of cracking and tearing of the first tape 101 and the second tape 102 after being adhered to the corresponding surfaces on the electrode 900, and improving the gluing quality of the first tape 101 and the second tape 102.

[0130] Moreover, in the embodiment of the present application, by arranging both the second support member 320 and the second adsorption member 310 on the second connecting member 340, and making the second driving member 350 drive the second support member 320 and the second adsorption member 310 to rotate around the second axis X2 through the second connecting member 340, so that the second support member 320 and the second adsorption member 310 alternately correspond to the second surface 912 in the thickness direction Z, the second support member 320 and the second adsorption member 310 can be alternately abutted against the second surface 912 on the pole piece 900 in a short time, thereby improving the pasting quality of the first tape 101 and the second tape 102, and also improving the pasting efficiency of the first tape 101 and the second tape 102.

[0131] It should be noted that in the gluing device of the embodiment of the present application, when the first adsorbent 210 moves toward the gluing station R1 to make the first tape 101 on the first adsorbent 210 adhere to the first surface 911 on the pole piece 900, since the sheet-shaped structure of the pole piece 900 is relatively fragile, and the first adsorbent 210 directly presses the first tape 101 to and adheres it to the first surface 911 on the pole piece 900 under the driving force of the linear driving source, the first surface 911 on the pole piece 900 is easily pulled and torn due to sudden large external pressure, causing damage to the structure of the pole piece 900 and reducing the pasting quality of the first tape 101.

[0132] Similarly, the second surface 912 on the pole piece 900 is also easily pulled and torn due to sudden large external pressure, causing damage to the structure of the pole piece 900 and also reducing the adhesion quality of the second tape 102.

[0133] Based on the above situation, in some embodiments of the present application, see Figure 4 , Figure 6 , Figure 7 and Fig. 9 The first adhesive laminating mechanism 200 further includes a first buffer structure 230 connected to the first adsorbent 210 , and the first buffer structure 230 is used to apply a first elastic force to the first adsorbent 210 when the first adsorbent 210 adheres the first adhesive tape 101 to the first surface 911 .

[0134] It is not difficult to understand that when the first adsorbent 210 is driven by a linear drive source to stick the first tape 101 on it to the first surface 911 on the pole piece 900, the first adsorbent 210 is subjected to the first elastic force applied by the first buffer structure 230, so that the first adsorbent 210 can slowly press the first tape 101 on it toward and stick it to the first surface 911 on the pole piece 900.

[0135] In this way, the pressure on the first surface 911 of the pole piece 900 increases gradually instead of suddenly changing rapidly, thereby reducing the probability of the first surface 911 of the pole piece 900 being pulled or torn due to overpressure, reducing the risk of damage to the structure of the pole piece 900, and improving the bonding quality of the first tape 101.

[0136] Similarly, see Figure 6 , Figure 7 and Fig.10 The second adhesive laminating mechanism 300 further includes a second buffer structure 330 connected to the second adsorbent 310 , and the second buffer structure 330 is used to apply a second elastic force to the second adsorbent 310 when the second adsorbent 310 adheres the second adhesive tape 102 to the second surface 912 .

[0137] When the second adsorbent 310 is driven by a linear drive source to adhere the second adhesive tape 102 thereon to the second surface 912 on the pole piece 900, the second adsorbent 310 is subjected to the first elastic force applied by the second buffer structure 330, so that the second adsorbent 310 can slowly press the second adhesive tape 102 thereon toward and adhere it to the second surface 912 on the pole piece 900.

[0138] In this way, the pressure on the second surface 912 of the pole piece 900 increases gradually instead of suddenly changing rapidly, thereby reducing the probability of the second surface 912 of the pole piece 900 being pulled or torn due to overpressure, reducing the risk of damage to the structure of the pole piece 900, and improving the bonding quality of the second tape 102.

[0139] It should be noted that, based on the above description, when the second adsorbent 310 adheres the second tape 102 to the second surface 912 of the pole piece 900, the first adsorbent 210 will support the first surface 911 of the pole piece 900. At this time, the first adsorbent 210 and the second adsorbent 310 will be respectively subjected to the first elastic force and the second elastic force applied by the first buffer structure 230 and the second buffer structure 330, and the first elastic force applied by the first buffer structure 230 to the first adsorbent 210 and the second elastic force applied by the second buffer structure 330 to the second adsorbent 310 are difficult to maintain equal, which makes it easy for the first adsorbent 210 to displace and break away from the support for the first surface 911. As a result, when the second adsorbent 310 adheres the second tape 102 to the second surface 912 of the pole piece 900, the pole piece 900 is warped or bent due to lack of stable support, causing the second surface 912 on the pole piece 900 to be torn, thereby reducing the pasting quality of the second tape 102.

[0140] Based on this, see further Figure 6 , Figure 7 and Figure 8The first adsorbent 210 can support the first surface 911 when the second adsorbent 310 adheres the second adhesive tape 102 to the second surface 912, and when the first adsorbent 210 supports the first surface 911, the first elastic force is greater than the second elastic force.

[0141] It is not difficult to understand that when the first adsorbent 210 stably adheres the first tape 101 to the first surface 911 and maintains a state of abutting the first surface 911 on the pole piece 900, the first adsorbent 210 is subjected to the first elastic force applied by the first buffer structure 230 and maintains a supporting state for the first surface 911 on the pole piece 900. At this time, the second adsorbent 310 moves toward the direction of the first adsorbent 210 under the drive of the linear drive source, thereby adhering the second tape 102 thereon to the second surface 912 on the pole piece 900.

[0142] During the process of the second adsorbent 310 adhering the second tape 102 thereon to the second surface 912 of the pole piece 900, since the first elastic force applied by the first buffer structure 230 to the first adsorbent 210 is greater than the second elastic force applied by the second buffer structure 330 to the second adsorbent 310, the first adsorbent 210 can effectively maintain the support state of the first surface 911 on the pole piece 900, so that the first adsorbent 210 and the second adsorbent 310 can respectively maintain the pressure holding state on the first surface 911 and the second surface 912 of the pole piece 900, so that the forces acting on the first surface 911 and the second surface 912 of the pole piece 900 are relatively uniform, reducing the probability of the first adsorbent 210 being displaced and separated from the support of the first surface 911, thereby reducing the risk of the second surface 912 on the pole piece 900 being torn and improving the adhesion quality of the second tape 102.

[0143] Further, see Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The first adhesive mechanism 200 further includes a first connecting member 240 , the first buffer structure 230 includes a first spring 231 , the first adsorption member 210 is slidably connected to the first connecting member 240 , and the first spring 231 is sandwiched between the first connecting member 240 and the first adsorption member 210 .

[0144] Specifically, see Fig. 9 The first buffer structure 230 also includes a first guide column (not shown in the figure), which is arranged on the first connecting member 240 along the thickness direction Z. The first spring 231 is sleeved on the first guide column and the two ends of the first spring 231 are respectively against the first connecting member 240 and the first adsorption member 210.

[0145] It is easy to understand that the first guide column can guide the compression or extension of the first spring 231, so that the first spring 231 can expand and contract along its own axis.

[0146] It is not difficult to understand that when the first adsorbent 210 is driven by a linear drive source to stick the first tape 101 on it to the first surface 911 on the pole piece 900, the first spring 231 is compressed to apply a first elastic force to the first adsorbent 210, giving the first adsorbent 210 an elastic buffer, so that the first adsorbent 210 slowly presses the first tape 101 on it toward and sticks it to the first surface 911 on the pole piece 900, reducing the probability of the first surface 911 on the pole piece 900 being pulled or torn due to overpressure, reducing the risk of damage to the structure of the pole piece 900, and improving the sticking quality of the first tape 101.

[0147] Similarly, see Figure 6 , Figure 7 , Figure 8 and Fig.10 The second adhesive mechanism 300 also includes a second connecting member 340, the second buffer structure 330 includes a second spring 331, the second adsorption member 310 is slidably connected to the second connecting member 340, the second spring 331 is clamped between the second connecting member 340 and the second adsorption member 310, and the wire diameter of the first spring 231 is greater than the wire diameter of the second spring 331.

[0148] Specifically, see Fig.10 The second buffer structure 330 also includes a second guide column (not shown in the figure), which is arranged on the second connecting member 340 along the thickness direction Z. The second spring 331 is sleeved on the second guide column and the two ends of the second spring 331 are respectively against the second connecting member 340 and the second adsorption member 310.

[0149] The second guide post can guide the compression or extension of the second spring 331 , so that the second spring 331 can be extended or retracted along its own axial direction.

[0150] When the second adsorbent 310 is driven by a linear drive source to stick the second tape 102 on it to the second surface 912 on the pole piece 900, the second spring 331 is compressed to apply a second elastic force to the second adsorbent 310, giving the second adsorbent 310 an elastic buffer, so that the second adsorbent 310 slowly presses the second tape 102 on it toward and sticks it to the second surface 912 on the pole piece 900, reducing the probability of the second surface 912 on the pole piece 900 being pulled or torn due to overpressure, reducing the risk of damage to the structure of the pole piece 900, and improving the sticking quality of the second tape 102.

[0151] It should also be noted that the wire diameter of the first spring 231 can be understood as the diameter of the steel wire used to manufacture the first spring 231 , and the wire diameter of the second spring 331 can also be understood as the diameter of the steel wire used to manufacture the second spring 331 .

[0152] When the first adsorbent 210 stably adheres the first tape 101 to the first surface 911, it will maintain a state of abutting against the first surface 911 on the pole piece 900. At this time, the second adsorbent 310 adheres the second tape 102 on it to the second surface 912 on the pole piece 900. During this process, the second adsorbent 310 moves under the driving force of the linear drive source, and is also subjected to the second elastic force applied by the second spring 331 toward the first adsorbent 210.

[0153] Since the wire diameter of the first spring 231 is set to be larger than the wire diameter of the second spring 331, the first elastic force applied by the first spring 231 to the first adsorbent 210 toward the second adsorbent 310 during the process of the second adsorbent 310 squeezing the first adsorbent 210 through the pole piece 900 will be greater than the second elastic force applied by the second spring 331 toward the first adsorbent 210. In this way, the first adsorbent 210 can effectively maintain the state of supporting the first surface 911 on the pole piece 900, so that the forces acting on the first surface 911 and the second surface 912 on the pole piece 900 are relatively uniform, thereby reducing the probability of the first adsorbent 210 being displaced and separated from the support of the first surface 911, thereby reducing the risk of the second surface 912 on the pole piece 900 being torn and improving the bonding quality of the second tape 102.

[0154] In some embodiments of the present application, see Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 The first gluing mechanism 200 also includes a first support member 220. The first support member 220 and the first adsorption member 210 can alternately correspond to the first surface 911 in the thickness direction Z, and the first support member 220 can move in the direction close to the gluing station R1 to support the first surface 911 when the second adsorption member 310 adheres the second tape 102 to the second surface 912.

[0155] Specifically, see Figure 4 , Figure 7 , Figure 8 and Fig. 9The first gluing mechanism 200 also includes a first connecting member 240 and a first driving member 250. The first supporting member 220 and the first adsorbing member 210 are both arranged on the first connecting member 240. The output end of the first driving member 250 is connected to the first connecting member 240 to drive the first supporting member 220 and the first adsorbing member 210 to rotate around the first axis X1 through the first connecting member 240, so that the first supporting member 220 and the first adsorbing member 210 alternately correspond to the first surface 911 in the thickness direction Z.

[0156] The first driving member 250 may be a rotating driving member such as an electric motor, and the first axis X1 corresponds to the rotation axis of the first driving member 250 .

[0157] The first gluing mechanism 200 also includes a third driving member 260, the output end of the third driving member 260 is connected to the first driving member 250 to drive the first driving member 250 to rise and fall in the thickness direction Z, so that the first driving member 250, the first connecting member 240 connected to the output end of the first driving member 250, and the first supporting member 220 and the first adsorption member 210 arranged on the first connecting member 240 move synchronously in the direction close to or away from the gluing station R1.

[0158] The third driving member 260 may be a cylinder, a hydraulic cylinder, an electric push rod, etc., or a driving structure in which a motor and a transmission assembly cooperate. The transmission assembly may be a bidirectional lead screw, a gear rack, etc. Exemplarily, the third driving member 260 is a driving structure in which a servo motor and a bidirectional lead screw cooperate to improve the accuracy and stability of the lifting and lowering motions of the first supporting member 220 and the first adsorbing member 210.

[0159] At this time, the first driving member 250 drives the first connecting member 240 to rotate around the first axis X1, so that the first supporting member 220 on the first connecting member 240 is opposite to the first surface 911 on the pole piece 900, and the first adsorption member 210 on the first connecting member 240 and the first surface 911 on the pole piece 900 are staggered in the up and down directions.

[0160] Then, the third driving member 260 drives the first driving member 250 to move toward the glue laminating station R1, thereby driving the first connecting member 240 and the first supporting member 220 thereon to move to the glue laminating station R1, so that the first supporting member 220 abuts against the first surface 911 on the pole piece 900, so as to support the first surface 911 on the pole piece 900 through the first supporting member 220.

[0161] During the process of the first support member 220 moving toward the gluing station R1, the second adsorption member 310 also moves toward the gluing station R1, and after the first support member 220 supports the first surface 911 on the electrode 900, it abuts against the second surface 912 on the electrode 900. The second adsorption member 310 continues to move upward to stick the second tape 102 on it to the second surface 912.

[0162] It can be understood that the first support member 220 serves to support the first surface 911 when the second adsorbent 310 adheres the second tape 102 to the second surface 912, thereby reducing the probability of the electrode 900 being warped or bent when the second adsorbent 310 adheres the second tape 102 to the second surface 912 on the electrode 900. At the same time, the first surface 911 and the second surface 912 on the electrode 900 are subjected to relatively uniform force when the second adsorbent 310 adheres the second tape 102 to the second surface 912 on the electrode 900, thereby reducing the risk of cracking or tearing of the second tape 102 after being adhered to the second surface 912, thereby improving the pasting quality of the second tape 102.

[0163] Moreover, the first support member 220 supports the first surface 911 when the second adsorbent member 310 adheres the second tape 102 to the second surface 912. Since the first support member 220 is not subject to the elastic constraints of the relevant buffer structure, the probability of the first support member 220 being displaced and separated from the support for the first surface 911 when the second adsorbent member 310 adheres the second tape 102 to the second surface 912 can be directly reduced, so that the first surface 911 and the second surface 912 on the electrode piece 900 are subjected to relatively uniform force when the second adsorbent member 310 adheres the second tape 102 to the second surface 912 on the electrode piece 900, so that the electrode piece 900 remains flat during the gluing process, thereby improving the gluing quality of the second tape 102.

[0164] In addition, in the embodiment of the present application, by arranging the first support member 220 and the first adsorption member 210 on the first connecting member 240, and making the first driving member 250 drive the first support member 220 and the first adsorption member 210 to rotate around the first axis X1 through the first connecting member 240, so that the first support member 220 and the first adsorption member 210 alternately correspond to the first surface 911 in the thickness direction Z, the first support member 220 and the first adsorption member 210 can alternately abut against the first surface 911 on the pole piece 900 in a short time, thereby improving the pasting quality of the first tape 101 and the second tape 102, and also improving the pasting efficiency of the first tape 101 and the second tape 102.

[0165] It is not difficult to understand that in the gluing device of the embodiment of the present application, by respectively providing the first support member 220 and the second support member 320, and enabling the first support member 220 and the first adsorption member 210 to alternately correspond to the first surface 911 on the pole piece 900 in the thickness direction Z, enabling the second support member 320 and the second adsorption member 310 to alternately correspond to the second surface 912 on the pole piece 900 in the thickness direction Z, enabling the first support member 220 to support the first surface 911 when the second adsorption member 310 adheres the second tape 102 to the second surface 912, and enabling the second support member 320 to support the second surface 912 when the first adsorption member 210 adheres the first tape 101 to the first surface 911, thereby reducing the probability of sagging, warping and bending deformation of the pole piece 900 during the gluing process, reducing the risk of cracking and tearing of the first tape 101 and the second tape 102 after being adhered to the corresponding surfaces on the pole piece 900, and improving the pasting quality of the first tape 101 and the second tape 102.

[0166] In addition, it should be noted that, in some embodiments of the present application, when the gluing device of the present application adopts the method of supporting the first surface 911 on the pole piece 900 when the second adsorbent 310 adheres the second tape 102 to the second surface 912 of the pole piece 900 with the first support member 220, since the first adsorbent 210 will not contact the first surface 911 on the pole piece 900 during this process, it is not necessary to make the first elastic force applied by the first buffer structure 230 to the first adsorbent 210 greater than the second elastic force applied by the second buffer structure 330 to the second adsorbent 310, that is, it is not necessary to set the wire diameter of the first spring 231 on the first buffer structure 230 greater than the wire diameter of the second spring 331 on the second buffer structure 330, and the first spring 231 on the first buffer structure 230 and the second spring 331 on the second buffer structure 330 can be of the same specifications, thereby reducing the overall assembly difficulty of the gluing device.

[0167] It should be noted that when the conveying mechanism 100 conveys the electrode piece 900 with the electrode ear 910 to the gluing station R1, the electrode piece 900 is prone to slip and shift relative to the bearing surface of the conveying mechanism 100, resulting in the first surface 911 and the second surface 912 on the electrode piece 900 being difficult to be in the preset position for gluing.

[0168] Based on this, in some embodiments of the present application, see Figure 3 , Figure 4 and Fig. 9 The gluing device also includes a first detection mechanism 400 and a first deviation correcting mechanism 800.

[0169] The first detection mechanism 400 is used to obtain the spatial position information of the pole piece 900 at the gluing station R1. The first deviation correction mechanism 800 is drivingly connected to the first adsorption member 210, and is used to adjust the spatial position of the first adsorption member 210 according to the position information obtained by the first detection mechanism 400, so that the first adhesive tape 101 on the first adsorption member 210 is directly opposite to the first surface 911.

[0170] Specifically, the first detection mechanism 400 can be connected to the first correction mechanism 800 for communication, and the first detection mechanism 400 can be arranged above the gluing station R1. The first detection mechanism 400 can be, but is not limited to, a visual sensor, such as a CCD camera. The first correction mechanism 800 can be, but is not limited to, a rotation driver such as a motor, which can drive the first adsorption member 210 to rotate around the first axis X1 to adjust the position of the first adsorption member 210 in space.

[0171] After the electrode piece 900 is conveyed to the gluing station R1, the first detection mechanism 400 photographs the electrode piece 900 on the gluing station R1 to obtain the position information of the electrode piece 900 at the gluing station R1, and the background controller obtains the detection signal of the first detection mechanism 400, thereby comparing and analyzing the position information of the electrode piece 900 corresponding to the detection signal with the preset position to determine whether the position of the electrode piece 900 on the gluing station R1 meets the position accuracy requirement of the gluing of the first adsorption component 210.

[0172] The background controller controls the first deflection correction mechanism 800 to operate according to the image comparison and analysis results, so that the first deflection correction mechanism 800 drives the first adsorbent 210 to rotate around the first axis X1, so that the first tape 101 on the first adsorbent 210 is directly opposite to the first surface 911 on the pole piece 900. In this way, the first adsorbent 210 moves downward in a straight line to accurately adhere the first tape 101 to the first surface 911 on the pole piece 900, thereby improving the pasting quality of the first tape 101.

[0173] Similarly, in order to improve the adhesion quality of the second adhesive tape 102 on the second surface 912 of the pole piece 900, see Figure 3 , Figure 8 and Fig.10 The gluing device further includes a second detecting mechanism 500 and a second deviation correcting mechanism 700.

[0174] The second detection mechanism 500 is used to obtain the spatial position information of the electrode 900 at the gluing station R1. The second deviation correction mechanism 700 is drivingly connected to the second adsorption member 310, and is used to adjust the spatial position of the second adsorption member 310 according to the position information obtained by the second detection mechanism 500, so that the second adhesive tape 102 on the second adsorption member 310 is directly opposite to the second surface 912.

[0175] Specifically, the second detection mechanism 500 can be connected to the second correction mechanism 700 for communication, and the second detection mechanism 500 can be arranged below the gluing station R1. The second detection mechanism 500 can be, but is not limited to, a visual sensor, such as a CCD camera. The second correction mechanism 700 can be, but is not limited to, a rotation driver such as a motor, which can drive the second adsorption member 310 to rotate around the second axis X2 to adjust the position of the second adsorption member 310 in space.

[0176] After the electrode piece 900 is conveyed to the glue laminating station R1, the second detection mechanism 500 photographs the electrode piece 900 on the glue laminating station R1 to obtain the position information of the electrode piece 900 at the glue laminating station R1, and the background controller obtains the detection signal of the second detection mechanism 500, thereby comparing and analyzing the position information of the electrode piece 900 corresponding to the detection signal with the preset position to determine whether the position of the electrode piece 900 on the glue laminating station R1 meets the position accuracy requirement of the glue laminating of the second adsorption component 310.

[0177] The background controller controls the second deflection correction mechanism 700 to move according to the image comparison and analysis results, so that the second deflection correction mechanism 700 drives the second adsorbent 310 to rotate around the second axis X2, so that the second tape 102 on the second adsorbent 310 is directly opposite to the second surface 912 on the pole piece 900. In this way, the second adsorbent 310 moves upward in a straight line to accurately adhere the second tape 102 to the second surface 912 on the pole piece 900, thereby improving the pasting quality of the second tape 102.

[0178] In some embodiments of the present application, see Figure 3 The gluing device also includes a pole piece feeding mechanism 10 and a die-cutting mechanism 20.

[0179] The electrode sheet feeding mechanism 10 is used to unwind and pull the electrode sheet material strip 105 to move along the first preset direction Y1, and the conveying mechanism 100 is connected to the end of the electrode sheet feeding mechanism 10. The die-cutting mechanism 20 is arranged between the electrode sheet feeding mechanism 10 and the conveying mechanism 100, and is used to cut the electrode sheet material strip 105 into a plurality of electrode sheets 900 with electrode ears 910.

[0180] Specifically, the electrode material feeding mechanism 10 may include a electrode material strip unwinding assembly and a lead tape assembly. The electrode material strip unwinding assembly is used to unwind the electrode material strip 105 of the coil to the lead tape assembly. The lead tape assembly pulls the electrode material strip 105 to the die-cutting mechanism 20. The bearing surface of the conveying mechanism 100 is connected to the die-cutting mechanism 20.

[0181] The electrode strip unwinding assembly may be a single unwinding roller or a combination of a single unwinding roller and a plurality of tensioning rollers. The lead assembly may be a driving roller and a driven roller structure arranged up and down. The die-cutting mechanism 20 may be a conventional device capable of performing die-cutting and slitting on the battery electrode.

[0182] It is not difficult to understand that the gluing device of the embodiment of the present application can cut the pole piece material strip 105 into multiple pole pieces 900 with pole ears 910 during the moving and conveying process of the pole piece material strip 105 through the coordinated arrangement of the pole piece feeding mechanism 10 and the die-cutting mechanism 20, so that the pole pieces 900 with pole ears 910 are conveyed one by one by the conveying mechanism 100 to the gluing station R1 for gluing treatment, so that each pole piece 900 with tape can be directly conveyed by the conveying mechanism 100 to the stacking station in the shape of a stack for stacking molding. Compared with the existing gluing method of sticking continuous tape on the roots of each pole ear at the edge of the pole piece material strip, the action of winding and unwinding the pole piece 900 with tape is omitted, thereby solving the problem of reduced quality of pole piece stacking caused by the deviation of the pole piece 900 with tape relative to the tape running direction during the winding and unwinding process of the pole piece 900 with tape, effectively improving the quality of pole piece stacking molding and improving the quality of battery production.

[0183] In some embodiments of the present application, see Fig.11 , Fig.12 and Fig.13 The gluing device further includes a first gluing supply mechanism 30 and a first gluing dispensing mechanism 40 .

[0184] The first glue supply mechanism 30 is used to supply the first glue material 103. The first glue dispensing mechanism 40 includes a first clamping member 41 and a first cutting member 42. The first clamping member 41 is used to clamp and drive the head of the first glue material 103 to move along the second preset direction Y2 to pull the first glue material 103 out of a first preset length. The first cutting member 42 is used to cut the first glue material 103 pulled out of the first preset length to obtain the first adhesive tape 101.

[0185] The first adsorption component 210 can adsorb the first adhesive tape 101 when the first cutting component 42 cuts the first adhesive material 103 .

[0186] Specifically, the first glue supply mechanism 30 may be a single unwinding roller or a combination of a single unwinding roller and a plurality of tensioning rollers, and is used to discharge the first glue material 103 of the coil in the form of a sheet.

[0187] The first clamping member 41 may be a clamping cylinder. The first clamping member 41 may be driven by the fifth driving member 44 to move along the second preset direction Y2, thereby clamping and driving the head of the first adhesive material 103 to move along the second preset direction Y2, so as to pull the first adhesive material 103 out of a first preset length, and the first preset length corresponds to the length of a single piece of the first adhesive tape 101, which is not specifically limited.

[0188] The fifth driving member 44 can be a cylinder, a hydraulic cylinder, an electric push rod, etc., or can be a motor and a transmission assembly. Exemplarily, the fifth driving member 44 is a driving structure in which a motor and a gear rack cooperate. The fifth driving member 44 can be installed on the frame 600 of the glue sticking device.

[0189] The first cutting member 42 may be a cutter, and the first cutting member 42 may be driven by the sixth driving member 45 to move along the fourth preset direction Y4 intersecting the second preset direction Y2, so as to cut the first adhesive material 103 pulled out to the first preset length, so as to obtain the first adhesive tape 101. The sixth driving member 45 may be mounted on the frame 600 of the adhesive laminating device. The second preset direction Y2 and the fourth preset direction Y4 are intersecting straight line directions.

[0190] The sixth driving member 45 may be a cylinder, a hydraulic cylinder, an electric push rod, etc., or may be in the form of a combination of a motor and a transmission assembly.

[0191] The first gluing mechanism 200 can be disposed as a whole on the output end of the seventh driving member 46, so as to be driven by the seventh driving member 46 to move in space, thereby driving the first adsorption member 210 to move in space. The seventh driving member 46 can be a three-axis mobile platform or a multi-axis manipulator, so that the first gluing mechanism 200 and the first adsorption member 210 thereon have multiple degrees of freedom of movement in multiple directions. The seventh driving member 46 can be installed on the frame 600 of the gluing device.

[0192] It is easy to understand that the first glue supply mechanism 30 continuously supplies the first glue material 103, the first clamping member 41 clamps the head of the first glue material 103 and drives the head of the first glue material 103 to move along the second preset direction Y2, and when the first clamping member 41 pulls the first glue material 103 out of the first preset length, the first adsorbing member 210 moves to the back of the first glue material 103 pulled out of the first preset length and adsorbs it. At this time, the first cutting member 42 moves in the direction of the first glue material 103 pulled out of the first preset length, thereby cutting the first glue material 103 pulled out of the first preset length to obtain the first adhesive tape 101 of the first preset length, and the first adsorbing member 210 stably adsorbs the first adhesive tape 101 of the first preset length to achieve the material collection of the first adhesive tape 101.

[0193] When the first suction component 210 needs to take materials again, the first clamping component 41 and the first cutting component 42 repeat the above-mentioned actions.

[0194] In this way, through the coordinated arrangement of the first glue supply mechanism 30 and the first glue lowering mechanism 40, the first adhesive tape 101 can be continuously supplied to the first adsorbent 210, so that the first adsorbent 210 can continuously stick the first adhesive tape 101 one by one to the corresponding positions of the electrode 900 at the gluing station R1, thereby improving the gluing efficiency of batch electrode 900.

[0195] Further, see Fig.11 and Fig.12 The first clamping member 41 includes a first clamping portion 41a and a second clamping portion 41b that can be relatively far away from or close to each other. The first clamping portion 41a is used to contact the back adhesive surface of the first adhesive material 103, and the second clamping portion 41b is used to contact the adhesive surface of the first adhesive material 103, and the portion where the second clamping portion 41b contacts the first adhesive material 103 is constructed as a tooth-like structure.

[0196] Specifically, the first clamping portion 41a and the second clamping portion 41b can be respectively disposed on two clamping jaws of the clamping jaw cylinder, so that the two clamping jaws of the clamping jaw cylinder drive them to move away from or approach each other.

[0197] The portion where the second clamping portion 41 b contacts the first adhesive material 103 may include a plurality of planar teeth distributed at intervals to form a tooth-like structure.

[0198] It should be understood that when the first clamping member 41 needs to clamp the head of the first adhesive material 103 output by the first adhesive supply mechanism 30, the first clamping portion 41a and the second clamping portion 41b move toward each other, so that the first clamping portion 41a abuts against the back adhesive surface of the head of the first adhesive material 103, and the second clamping portion 41b abuts against the adhesive surface of the head of the first adhesive material 103, thereby achieving clamping of the head of the first adhesive material 103.

[0199] After the first cutting piece 42 cuts the first adhesive material 103 pulled out to the first preset length to obtain the first adhesive tape 101 of the first preset length, the first clamping portion 41a and the second clamping portion 41b move away from each other to disengage from the clamping of the first adhesive tape 101, so that the first adsorption piece 210 can drive the first adhesive tape 101 to the gluing station R1 for gluing.

[0200] It is not difficult to understand that by constructing the contact area between the second clamping portion 41b and the first adhesive material 103 into a tooth-like structure, the contact area between the second clamping portion 41b and the adhesive surface of the first adhesive material 103 can be reduced, reducing the risk of the second clamping portion 41b and the first adhesive material 103 sticking together, and improving the smoothness of the first adhesive tape 101.

[0201] Further, see Fig.12 The first clamping portion 41 a is used to form a line contact with the back adhesive surface of the first adhesive material 103 .

[0202] Specifically, the portion of the first clamping portion 41 a that is in contact with the first adhesive material 103 is configured to be cylindrical, so that the first clamping portion 41 a forms a line contact with the adhesive back surface of the first adhesive material 103 .

[0203] It should be understood that by making the first clamping portion 41a form a line contact with the back adhesive surface of the first adhesive material 103, the first clamping portion 41a can contact multiple parts of the back adhesive surface of the first adhesive material 103, and at the same time, the first clamping portion 41a can apply a larger pressing force to the back adhesive surface of the first adhesive material 103, so that the first clamping portion 41a and the second clamping portion 41b cooperate to stably clamp the first adhesive material 103, reduce the probability of slipping between the first adhesive material 103 and the first clamping portion 41a, and also reduce the risk of the back adhesive surface of the first adhesive material 103 being damaged due to excessive force.

[0204] Further, see Fig.11 and Fig.13 The first glue feeding mechanism 40 further includes a second clamping member 43 , which is disposed between the first glue supply mechanism 30 and the first cutting member 42 , and is used to clamp a portion of the first glue material 103 close to the position cut by the first cutting member 42 .

[0205] Specifically, the second clamping member 43 can also be a clamping claw cylinder. The second clamping member 43 and the first cutting member 42 are arranged adjacent to each other, and the first cutting member 42 is relatively close to the first clamping member 41 , and the second clamping member 43 is relatively far away from the first clamping member 41 .

[0206] It should be understood that after the first clamping member 41 pulls the first adhesive material 103 out of the first preset length and the first adsorption member 210 moves to the back adhesive surface of the first adhesive material 103 pulled out of the first preset length, the second clamping member 43 clamps the portion of the first adhesive material 103 close to the position cut by the first cutting member 42.

[0207] In this way, the two ends of the portion of the first adhesive material 103 pulled out of the first preset length are kept in a tensioned state under the synchronous clamping action of the first clamping member 41 and the second clamping member 43, so that the first cutting member 42 can smoothly cut off the portion of the first adhesive material 103 pulled out of the first preset length, reducing the risk that the portion of the first adhesive material 103 pulled out of the first preset length is in a loose state and difficult to be accurately cut by the first cutting member 42. In addition, the first adsorbent 210 adsorbs the first adhesive material 103 in a tensioned state, reducing the probability of wrinkles on the surface of the first adhesive material 103, and improving the smoothness of the first adsorbent 210 taking the first adhesive tape 101.

[0208] Moreover, it is not difficult to understand that after the first cutting piece 42 cuts the first adhesive material 103 pulled out to the first preset length to obtain the first adhesive tape 101 of the first preset length, a section of the first adhesive material 103 is still retained between the second clamping piece 43 and the position where the first adhesive material 103 is cut by the first cutting piece 42. In this way, the section of the first adhesive material 103 can be clamped and pulled by the first clamping piece 41 next time, so that the first clamping piece 41 can pull the first adhesive material 103 out of the first preset length again, which is convenient for the first adsorption piece 210 to take the first adhesive tape 101 again.

[0209] Further, see Fig.13 The second clamping member 43 includes a third clamping portion 43a and a fourth clamping portion 43b that can be relatively far away or close, the third clamping portion 43a is used to contact the back adhesive surface of the first adhesive material 103, and the fourth clamping portion 43b is used to contact the adhesive surface of the first adhesive material 103, and the portion where the fourth clamping portion 43b contacts the first adhesive material 103 is constructed as a tooth-like structure.

[0210] Specifically, the first glue dispensing mechanism 40 further includes an eighth driving member 47 disposed on the frame 600 of the glue sticking device, the third clamping portion 43a and the fourth clamping portion 43b are both positioning blocks disposed on the frame 600, and the third clamping portion 43a and the fourth clamping portion 43b are opposite and spaced apart in a direction perpendicular to the first preset direction Y1, forming a gap for the first glue material 103 to pass through. The fourth clamping portion 43b is fixedly mounted on the frame 600, and the third clamping portion 43a is connected to the output end of the eighth driving member 47, so as to be moved by the eighth driving member 47 toward or away from the fourth clamping portion 43b.

[0211] Of course, in other embodiments, the third clamping portion 43a and the fourth clamping portion 43b may be directly disposed on the two clamping jaws of the clamping jaw cylinder, respectively, so that the two clamping jaws of the clamping jaw cylinder drive them to move away from or closer to each other.

[0212] The portion of the fourth clamping portion 43 b that contacts the first adhesive material 103 may include a plurality of planar teeth that are spaced apart to form a tooth-like structure.

[0213] It should be understood that after the first clamping member 41 pulls the first adhesive material 103 out of the first preset length, the third clamping portion 43a moves toward the direction close to the fourth clamping portion 43b, so that the portion of the first adhesive material 103 close to the position where it is cut by the first cutting member 42 is stably clamped by the third clamping portion 43a toward the fourth clamping portion 43b, so that the portion of the first adhesive material 103 that is pulled out of the first preset length remains in a tensioned state and is cut.

[0214] After the first cutting member 42 cuts the first adhesive material 103 pulled out to the first preset length to obtain the first adhesive tape 101 of the first preset length, the third clamping portion 43a moves in a direction away from the fourth clamping portion 43b to disengage the clamping of the first adhesive material 103, so that the first clamping member 41 can freely pull the first adhesive material 103 again.

[0215] It is not difficult to understand that by constructing the portion where the fourth clamping portion 43b contacts the first adhesive material 103 as a tooth-like structure, the contact area between the adhesive surface of the fourth clamping portion 43b and the first adhesive material 103 can be reduced, thereby reducing the risk of the fourth clamping portion 43b and the first adhesive material 103 sticking together, and improving the smoothness of the first adhesive material 103 moving along the second preset direction Y2 and the unloading of the first adhesive tape 101.

[0216] Further, see Fig.13 The third clamping portion 43 a is used to form a surface contact with the back adhesive surface of the first adhesive material 103 .

[0217] Specifically, the third clamping portion 43 a is configured as a flat plate structure, so that the third clamping portion 43 a is in surface contact with the adhesive back surface of the first adhesive material 103 .

[0218] In this way, the contact area between the third clamping portion 43a and the back adhesive surface of the first adhesive material 103 is increased, and the probability of slippage between the first adhesive material 103 and the third clamping portion 43a can also be reduced, so that the two ends of the portion of the first adhesive material 103 pulled out of the first preset length are kept in a tensioned state under the synchronous clamping action of the first clamping member 41 and the second clamping member 43, so that the first cutting member 42 can smoothly cut off the portion of the first adhesive material 103 pulled out of the first preset length, thereby reducing the risk that the portion of the first adhesive material 103 pulled out of the first preset length is in a loose state and difficult to be accurately cut by the first cutting member 42.

[0219] In some embodiments of the present application, see Fig.14 and Fig.15 The gluing device further includes a second gluing supply mechanism 50 and a second gluing dispensing mechanism 60 .

[0220] The second glue supply mechanism 50 is used to supply the second glue material 104. The second glue dispensing mechanism 60 includes a third clamping member 61 and a second cutting member 62. The third clamping member 61 is used to clamp and drive the head of the second glue material 104 to move along the third preset direction Y3 to pull the second glue material 104 to a second preset length. The second cutting member 62 is used to cut the second glue material 104 pulled to the second preset length to obtain the second adhesive tape 102.

[0221] The second adsorption component 310 can adsorb the second adhesive tape 102 when the second cutting component 62 cuts the second adhesive material 104 .

[0222] The second glue supply mechanism 50 can have the same structure as the first glue supply mechanism 30, which will not be described in detail here. Similarly, the second glue dispensing mechanism 60 can have the same structure as the first glue dispensing mechanism 40, which will not be described in detail here.

[0223] Similarly, the second gluing mechanism 300 can be disposed as a whole on the output end of the seventh driving member 46, so as to be driven by the seventh driving member 46 to move in space, thereby driving the second adsorption member 310 to move in space. The seventh driving member 46 can be a three-axis mobile platform or a multi-axis manipulator, so that the second gluing mechanism 300 and the second adsorption member 310 thereon have multiple degrees of freedom of movement in multiple directions. The seventh driving member 46 can be installed on the frame 600 of the gluing device.

[0224] It can be understood that, through the coordinated arrangement of the second glue supply mechanism 50 and the second glue lowering mechanism 60, the second adhesive tape 102 can be continuously supplied to the second adsorbent 310, so that the second adsorbent 310 continuously adheres the second adhesive tape 102 to the corresponding positions of the electrode 900 at the gluing station R1 one by one, thereby improving the gluing efficiency of batch electrode 900.

[0225] In some embodiments of the present application, see Fig.14 , Fig.15 , Fig.16 The glue sticking device further includes a frame 600, a first glue supply mechanism 30 and a second glue supply mechanism 50 are symmetrically distributed on the frame 600, and a first glue lowering mechanism 40 and a second glue lowering mechanism 60 are symmetrically distributed on the frame 600.

[0226] Specifically, see Fig.15 and Fig.16 , the second preset direction Y2 and the third preset direction Y3 are the same straight line direction. The first clamping member 41 on the first glue lowering mechanism 40 and the third clamping member 61 on the second glue lowering mechanism 60 are synchronously driven by the fifth driving member 44 to move in the same direction, so as to simultaneously pull the first glue material 103 and the second glue material 104 to the corresponding preset length, so that the first cutting member 42 and the second cutting member 62 can simultaneously cut out the first adhesive tape 101 and the second adhesive tape 102, so as to improve the gluing efficiency of the electrode sheet 900.

[0227] It is not difficult to understand that by symmetrically distributing the first glue supply mechanism 30 and the second glue supply mechanism 50 on the frame 600, and symmetrically distributing the first glue lower mechanism 40 and the second glue lower mechanism 60 on the frame 600, the first adhesive tape 101 and the second adhesive tape 102 can be supplied to the first adsorption member 210 and the second adsorption member 310 at the same time, thereby improving the gluing efficiency of the electrode 900.

[0228] In addition, an embodiment of the present application further provides a battery production line, which includes the gluing device of any of the above embodiments.

[0229] The battery production line of the present application, since it is equipped with the above-mentioned gluing device, also has the same technical effect brought by the above-mentioned gluing device, that is, through the cooperative arrangement of the conveying mechanism, the first gluing mechanism and the second gluing mechanism, by gluing multiple pole sheets with pole ears one by one, each pole sheet with tape can be directly conveyed by the conveying mechanism to the stacking station for stacking in the shape of a stack for stacking. Compared with the existing gluing method of sticking continuous tape on the roots of each pole ear at the edge of the pole sheet material strip, the action of winding and unwinding the pole sheet with tape is omitted, thereby solving the problem of reduced quality of pole sheet stacking caused by the deviation of the pole sheet with tape relative to the tape running direction during the winding and unwinding process, effectively improving the quality of pole sheet stacking and improving the quality of battery production.

[0230] See also Figures 1 to 16 , the embodiments of the present application provide a gluing device and a battery production line.

[0231] The gluing device includes: a conveying mechanism 100, used to carry a plurality of electrode sheets 900 with electrode ears 910 and convey the plurality of electrode sheets 900 one by one to the gluing station R1, wherein the connection parts between the electrode sheets 900 and the electrode ears 910 have a first surface 911 and a second surface 912 relative to each other in the thickness direction Z thereof; a first gluing mechanism 200, including a first adsorption member 210 for adsorbing the first adhesive tape 101, the first adsorption member 210 can move in a direction close to the gluing station R1 to adhere the first adhesive tape 101 to the first surface 911; a second gluing mechanism 300, including a second adsorption member 310 for adsorbing the second adhesive tape 102, the second adsorption member 310 can move in a direction close to the gluing station R1 to adhere the second adhesive tape 102 to the second surface 912.

[0232] The gluing device and battery production line of the embodiment of the present application are arranged in cooperation with a conveying mechanism, a first gluing mechanism and a second gluing mechanism. By gluing multiple pole sheets with pole ears one by one, each pole sheet with tape can be directly conveyed by the conveying mechanism to the stacking station in the shape of a stack for stacking. Compared with the existing gluing method of sticking continuous tape on the roots of each pole ear at the edge of the pole sheet material strip, the action of winding and unwinding the pole sheet with tape is omitted, thereby solving the problem of reduced quality of pole sheet stacking caused by the deviation of the pole sheet with tape relative to the tape running direction during the winding and unwinding process, effectively improving the quality of pole sheet stacking and improving the quality of battery production.

[0233] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0234] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A glue sticking device, characterized in that: include: A conveying mechanism, used for carrying a plurality of pole pieces with pole ears and conveying the plurality of pole pieces one by one to a glue sticking station, wherein a connection portion between the pole piece and the pole ear has a first surface and a second surface opposite to each other in a thickness direction thereof; A first glue sticking mechanism, comprising a first support member and a first adsorbing member for adsorbing a first adhesive tape, wherein the first adsorbing member can move toward a direction close to the glue sticking station to stick the first adhesive tape to the first surface, the first support member and the first adsorbing member can correspond to the first surface in the thickness direction alternately, and the first support member can move toward a direction close to the glue sticking station to support the first surface when the second adsorbing member sticks the second adhesive tape to the second surface; A second glue sticking mechanism, comprising a second support member and a second adsorbing member for adsorbing the second adhesive tape, wherein the second adsorbing member can move toward a direction close to the glue sticking station to stick the second adhesive tape on the second surface, the second support member and the second adsorbing member can correspond to the second surface in the thickness direction alternately, and the second support member can move toward a direction close to the glue sticking station to support the second surface when the first adsorbing member sticks the first adhesive tape on the first surface; The first adhesive laminating mechanism further includes a first driving member, an output end of which is connected to the first supporting member and the first adsorbing member to drive the first supporting member and the first adsorbing member to rotate around a first axis, so that the first supporting member and the first adsorbing member alternately correspond to the first surface in the thickness direction; The second glue-applying mechanism further includes a second driving member, an output end of which is connected to the second supporting member and the second adsorbing member to drive the second supporting member and the second adsorbing member to rotate around a second axis, so that the second supporting member and the second adsorbing member alternately correspond to the second surface in the thickness direction; There are a plurality of the gluing stations, and each of the gluing stations is provided with a pair of the first gluing mechanism and the second gluing mechanism.

2. The glue sticking device according to claim 1, characterized in that: The first adhesive tape attaching mechanism further includes a first buffer structure connected to the first adsorbent, and the first buffer structure is used to apply a first elastic force to the first adsorbent when the first adsorbent attaches the first adhesive tape to the first surface; The second adhesive tape mechanism further includes a second buffer structure connected to the second adsorbent, and the second buffer structure is used to apply a second elastic force to the second adsorbent when the second adsorbent adheres the second adhesive tape to the second surface.

3. The glue sticking device according to claim 2, characterized in that: The first adsorbent is capable of supporting the first surface when the second adsorbent adheres the second tape to the second surface, and when the first adsorbent supports the first surface, the first elastic force is greater than the second elastic force.

4. The glue sticking device according to claim 2 or 3, characterized in that: The first adhesive mechanism further includes a first connecting member, the first buffer structure includes a first spring, the first adsorption member is slidably connected to the first connecting member, and the first spring is sandwiched between the first connecting member and the first adsorption member; The second glue-applying mechanism also includes a second connecting member, the second buffer structure includes a second spring, the second adsorption member is slidably connected to the second connecting member, the second spring is clamped between the second connecting member and the second adsorption member, and the wire diameter of the first spring is greater than the wire diameter of the second spring.

5. The glue sticking device according to claim 1, characterized in that: The glue sticking device also includes: A first detection mechanism is used to obtain spatial position information of the electrode at the glue sticking station; The first deviation-correcting mechanism is drivingly connected to the first adsorbent and is used for adjusting the spatial position of the first adsorbent according to the position information obtained by the first detection mechanism so that the first tape on the first adsorbent is opposite to the first surface.

6. The glue sticking device according to claim 1, characterized in that: The glue sticking device also includes: A second detection mechanism is used to obtain spatial position information of the electrode at the glue sticking station; The second deviation-correcting mechanism is drivingly connected to the second adsorbent and is used for adjusting the spatial position of the second adsorbent according to the position information obtained by the second detection mechanism so that the second tape on the second adsorbent is opposite to the second surface.

7. The glue sticking device according to claim 1, characterized in that: The glue sticking device also includes: The pole piece feeding mechanism is used for unwinding and pulling the pole piece material strip to move along a first preset direction, and the conveying mechanism is docked with the end of the pole piece feeding mechanism; The die-cutting mechanism is arranged between the electrode sheet feeding mechanism and the conveying mechanism, and is used for cutting the electrode sheet material strip into a plurality of electrode sheets with electrode ears.

8. The adhesive laminating device according to claim 1, characterized in that: The glue sticking device also includes: A first glue supply mechanism, used for supplying a first glue material; A first adhesive dispensing mechanism, comprising a first clamping member and a first cutting member, wherein the first clamping member is used to clamp and drive the head of the first adhesive material to move along a second preset direction to pull the first adhesive material out to a first preset length, and the first cutting member is used to cut the first adhesive material pulled out to the first preset length to obtain the first adhesive tape; Wherein, the first adsorption component can adsorb the first adhesive tape when the first cutting component cuts the first adhesive material.

9. The glue sticking device according to claim 8, characterized in that: The first clamping member includes a first clamping portion and a second clamping portion that can be relatively far away from or close to each other, the first clamping portion is used to contact the back adhesive surface of the first adhesive material, the second clamping portion is used to contact the adhesive surface of the first adhesive material, and the portion where the second clamping portion contacts the first adhesive material is constructed as a tooth-like structure.

10. The glue sticking device according to claim 9, characterized in that: The first clamping portion is used to form a line contact with the adhesive backing surface of the first adhesive material.

11. The adhesive laminating device according to claim 10, characterized in that: The first glue feeding mechanism further includes a second clamping member, which is disposed between the first glue feeding mechanism and the first cutting member, and is used to clamp a portion of the first glue material close to a position cut by the first cutting member.

12. The adhesive laminating device according to claim 11, characterized in that: The second clamping member includes a third clamping portion and a fourth clamping portion that can be relatively moved away from or closer to each other, the third clamping portion is used to contact the back adhesive surface of the first adhesive material, the fourth clamping portion is used to contact the adhesive surface of the first adhesive material, and the portion where the fourth clamping portion contacts the first adhesive material is constructed as a tooth-like structure.

13. The adhesive laminating device according to claim 12, characterized in that: The third clamping portion is used to form a surface contact with the adhesive backing surface of the first adhesive material.

14. The adhesive laminating device according to claim 8, characterized in that: The glue sticking device also includes: A second glue supply mechanism, used for supplying a second glue material; A second adhesive dispensing mechanism, comprising a third clamping member and a second cutting member, wherein the third clamping member is used to clamp and drive the head of the second adhesive material to move along a third preset direction to pull the second adhesive material out to a second preset length, and the second cutting member is used to cut the second adhesive material pulled out to the second preset length to obtain the second adhesive tape; The second adsorbing member can adsorb the second adhesive tape when the second cutting member cuts the second adhesive material.

15. The adhesive laminating device according to claim 14, characterized in that: The glue sticking device further comprises a frame, and the first glue supply mechanism and the second glue supply mechanism are symmetrically distributed on the frame; The first glue dispensing mechanism and the second glue dispensing mechanism are symmetrically distributed on the frame.

16. A battery production line, characterized in that: It comprises the glue applying device as described in any one of claims 1 to 15.

Images