Paper-tearing device, battery production line and paper tearing method

Abstract

A paper-tearing device, comprising a conveying mechanism (1) and a paper-tearing mechanism (2), wherein the conveying mechanism (1) has a conveying path, the conveying path has a paper tearing position, the conveying mechanism (1) is configured to convey along the conveying path a workpiece (200) to which a sheet (100) is bonded, a first bonding surface is provided on the side of the sheet (100) facing away from the workpiece (200), and the first bonding surface is covered with release paper; and the paper-tearing mechanism (2) comprises a paper-tearing chuck (21) and a chuck driving device (22) connected to the paper-tearing chuck (21), the chuck driving device (22) can drive the paper-tearing chuck (21) to move in a reciprocating manner between a paper clamping position and a clearance position that avoids the conveying path, the paper-tearing chuck (21), when located at the paper clamping position, can clamp the release paper on the workpiece (200) that reaches the paper tearing position, and in the process of the conveying mechanism (1) continuously conveying the workpiece (200) and the paper-tearing chuck (21) moving from the paper clamping position to the clearance position, the release paper is torn away from the first bonding surface. The paper-tearing device has high working efficiency and a simple structure. A battery production line and a paper tearing method are further comprised.

Description

Paper tearing device, battery production line and paper tearing method

[0001] Cross-reference to related applications

[0002] The present disclosure is based on and claims priority to Chinese Patent Application No. 202410726416.5, filed on June 5, 2024, entitled “Paper tearing device, battery production line and paper tearing method”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of battery manufacturing, and in particular to a paper tearing device, a battery production line and a paper tearing method. BACKGROUND

[0004] New energy batteries are increasingly widely used in life and industry. For example, new energy vehicles equipped with batteries have been widely used, and batteries are also increasingly used in the energy storage field and the like. In new energy vehicles equipped with batteries, the batteries can be used to provide all or part of the power. In the energy storage field, the batteries can be installed in an energy storage box or directly installed at a user side.

[0005] With the continuous development of battery technology, how to improve the manufacturing efficiency of batteries and how to simplify the structure of battery manufacturing devices are one of the topics that the industry needs to study.

[0006] SUMMARY

[0007] To solve the above technical problems, the present disclosure provides a paper tearing device, a battery production line and a paper tearing method with high work efficiency and simple structure.

[0008] The present disclosure is implemented by the following technical solutions.

[0009] A first aspect of the present disclosure provides a paper tearing device, comprising: a conveying mechanism having a conveying path, the conveying path having a paper tearing position, the conveying mechanism being configured to convey a workpiece with a sheet adhered thereto along the conveying path, the sheet having a first adhering surface on a side facing away from the workpiece, and the first adhering surface being covered with a release paper; a paper tearing mechanism comprising a paper tearing chuck and a chuck driving device connected to the paper tearing chuck, the chuck driving device being capable of driving the paper tearing chuck to reciprocate between a paper tearing position and an avoiding position away from the conveying path, the paper tearing chuck being capable of clamping the release paper on the workpiece reaching the paper tearing position when located at the paper tearing position, and the release paper being torn away from the first adhering surface during continuous conveying of the workpiece by the conveying mechanism and movement of the paper tearing chuck from the paper tearing position to the avoiding position.

[0010] When the release paper is torn off by using the paper tearing device provided by the embodiments of the present disclosure, the conveying mechanism continuously conveys the workpiece, when the workpiece is conveyed to the paper tearing position, the paper tearing chuck clamps the tab of the release paper of the sheet pasted on the workpiece, then the paper tearing chuck moves from the clamping position to the avoiding position under the action of the chuck driving device, at the same time, the workpiece continuously moves under the action of the conveying mechanism, so that the release paper is gradually torn off from the first bonding surface, thus, the tearing of the release paper is realized. And the workpiece continuously moves in the whole process, without stopping, so that the efficiency of the paper tearing process can be improved; and the workpiece is directly conveyed by the conveying mechanism, so that the tray is saved, and the mechanism for positioning and jacking the tray is saved, thus, the structure of the paper tearing device is simplified.

[0011] In some embodiments, the conveying path extends along a first direction, the chuck driving device is capable of driving the paper tearing chuck to reciprocate along a second direction intersecting the first direction between the clamping position and the avoiding position, and the sheet is pasted on a surface of the workpiece along one side of the workpiece in the second direction.

[0012] The moving direction of the paper tearing chuck and the extending direction of the conveying path intersect, which is beneficial to strip the release paper from the first bonding surface, thereby improving the tearing effect, and is also beneficial to avoid the paper tearing chuck from the conveying path, so that the workpiece can continuously move along the conveying path, thereby facilitating the smooth progress of the paper tearing operation.

[0013] In some embodiments, the conveying mechanism carries the workpiece from one side of a third direction intersecting the first direction and the second direction, and the intersection includes perpendicular intersection.

[0014] In this way, the sheet is pasted on the side of the workpiece conveyed on the conveying mechanism, and in the process of continuously conveying the workpiece, the paper tearing chuck clamps the sheet pasted on the side of the workpiece, and moves away from the workpiece along the transverse direction of the workpiece, so that the release paper can be stripped relatively quickly, and the tearing efficiency is improved.

[0015] In some embodiments, the paper tearing device further comprises a position detection device configured to detect whether the workpiece reaches the paper tearing position, and in the case that the workpiece reaches the paper tearing position, the paper tearing chuck clamps the release paper on the workpiece.

[0016] The position detection device is provided, which realizes automatic detection of the moving position of the workpiece, improves the accuracy of detection, so as to facilitate the paper tearing chuck to clamp the release paper in time, and improves the smooth degree of the paper tearing operation.

[0017] In some embodiments, the paper tearing device further comprises a waste box, the opening of the waste box faces upward and is located below the avoiding position, and can receive the release paper released by the paper tearing chuck located in the avoiding position.

[0018] The waste box is provided, which realizes the collection of the torn release paper, so as to facilitate the subsequent processing of the release paper.

[0019] In some embodiments, the paper tearing device further comprises a paper tearing detection mechanism, the conveying path has a detection position located downstream of the paper tearing position, and the paper tearing detection mechanism is configured to detect whether the release paper is completely torn off from the workpiece passing through the detection position.

[0020] In this way, the paper tearing detection mechanism is used to detect whether the release paper is completely torn off, which helps to reduce the probability of a group defect caused by incomplete tearing of the release paper.

[0021] In some embodiments, the paper tearing detection mechanism comprises a line-scan camera, and the line-scan camera is located on one side of the conveying path along a direction perpendicular to the extension direction of the conveying path.

[0022] The line-scan camera is suitable for shooting moving objects, so that the line-scan camera can shoot the continuously moving workpiece, and the release paper on the workpiece can be accurately detected. In addition, the distribution position of the line-scan camera enables the line-scan camera to capture the image of the sheet on the workpiece for a long time, thereby improving the clarity of the shooting and the accuracy of the detection effect.

[0023] In some embodiments, the paper tearing detection mechanism further comprises a camera driving assembly, and an output end of the camera driving assembly is connected to the line-scan camera, so that the line-scan camera can be driven to approach or move away from the detection position, and the distance between the line-scan camera and the workpiece passing through the detection position is within a set distance range.

[0024] In order to improve the clarity of the shooting of the line-scan camera, the distance between the line-scan camera and the sheet on the workpiece needs to be kept within a set distance range. However, for workpieces with different sizes in the second direction, if the line-scan camera does not move, the distance between the line-scan camera and the workpiece passing through the detection position will be different, which will affect the clarity of the shooting. Therefore, by adjusting the position of the line-scan camera through the camera driving assembly, the distance between the line-scan camera and the workpiece passing through the detection position can be kept within a set distance range, so that the paper tearing device can be applied to workpieces of different specifications, and the compatibility is improved.

[0025] In some embodiments, the camera driving assembly comprises a lead screw and a threaded sleeve, the extension direction of the lead screw intersects the extension direction of the conveying path, the threaded sleeve is threadedly connected to the lead screw, and the line-scan camera is connected to the threaded sleeve.

[0026] In this way, the camera driving assembly can drive the line-scan camera to approach or move away from the detection position, and the structure of the camera driving assembly is simple and the position adjustment accuracy is high.

[0027] In some embodiments, the camera driving assembly further comprises a holding portion and a locking assembly, the holding portion is connected to the lead screw, and the lead screw can be driven to rotate around the central axis of the lead screw by rotating the holding portion, and the locking assembly is configured to lock the lead screw.

[0028] By rotating the handle, the lead screw can be rotated around the central axis of the lead screw, so that the threaded sleeve moves along the lead screw, thereby adjusting the distance between the line-scan camera and the detection position, and after adjustment, the lead screw is locked by the locking assembly, that is, the locking assembly makes the lead screw not easy to rotate, thereby fixing the position of the threaded sleeve, and then the position of the line-scan camera is maintained. Moreover, the camera driving assembly has a simple structure, low cost, and convenient adjustment.

[0029] In some embodiments, the paper tearing device further comprises a table, and the conveying mechanism, the paper tearing mechanism and the camera driving assembly are all arranged on the table top of the table.

[0030] In this way, the paper tearing device becomes a whole, has high structural strength, and is convenient for overall moving.

[0031] In some embodiments, the paper tearing chuck comprises: a base body, which is installed at the output end of the chuck driving device; and a first clamping part and a second clamping part, which are both arranged on the base body and are configured to be able to approach or move away from each other.

[0032] In this way, the paper tearing chuck can clamp the release paper of the sheet, and the structure of the paper tearing chuck is simple.

[0033] In some embodiments, the first clamping part is fixedly connected to the base body, and the paper tearing chuck further comprises a clamping driving device, which is installed on the base body, and the second clamping part is connected to the output end of the clamping driving device and can approach or move away from the first clamping part under the driving of the clamping driving device.

[0034] In this way, the paper tearing chuck can clamp the release paper of the sheet. Moreover, only the second clamping part is connected to the clamping driving device, the number of driving devices is saved, the cost is saved, and the structure is simplified.

[0035] In some embodiments, the conveying mechanism and the paper tearing mechanism are both provided with two, the conveying paths of the two conveying mechanisms are parallel and arranged side by side along a direction perpendicular to the conveying paths, and each of the two conveying mechanisms is provided with one paper tearing mechanism on a side opposite to the other.

[0036] In this way, the conveying paths of the two conveying mechanisms are close to each other, which facilitates the transfer of workpieces to the two conveying paths and simplifies the operation difficulty. Moreover, the two conveying mechanisms have a relatively long size in the first direction, and the close arrangement of the two conveying mechanisms leaves a larger space on both sides of the two conveying mechanisms in the second direction, so as to facilitate the arrangement of other components.

[0037] The second aspect of the present disclosure provides a battery production line, comprising: a pasting device configured to paste a heat insulation pad as a sheet to an outer surface of a battery cell as a workpiece through a second bonding surface; and the paper tearing device.

[0038] Since the battery production line comprises the paper tearing device provided by the first aspect, the battery production line has all the beneficial effects of the paper tearing device, and thus, the production efficiency of the battery production line is high, and the structure is simple.

[0039] The third aspect of the present disclosure provides a paper tearing method using a paper tearing device, the paper tearing device comprising a conveying mechanism and a paper tearing mechanism, the conveying mechanism having a conveying path, the conveying path having a paper tearing position, the conveying mechanism being configured to convey a workpiece with a sheet adhered thereto along the conveying path, the sheet having a first adhering surface on a side facing away from the workpiece, and the first adhering surface being covered with a release paper; the paper tearing mechanism comprising a paper tearing chuck and a chuck driving device connected to the paper tearing chuck, the chuck driving device being capable of driving the paper tearing chuck to reciprocate between the paper tearing position and an avoiding position away from the conveying path.

[0040] The paper tearing method comprises:

[0041] a conveying step, in which the conveying mechanism conveys the workpiece;

[0042] a clamping step, in which the paper tearing chuck clamps the release paper on the workpiece reaching the paper tearing position at the paper tearing position;

[0043] a tearing step, in which the conveying mechanism continuously conveys the workpiece and the chuck driving device drives the paper tearing chuck to move from the paper tearing position to the avoiding position, so that the release paper is torn away from the first adhering surface.

[0044] In the above entire process, the workpiece is continuously moved without pausing, and thus, the efficiency of the paper tearing process can be improved; moreover, the workpiece is directly conveyed by the conveying mechanism, and thus, the tray is saved, and the mechanism for positioning and jacking the tray is saved, and thus, the structure of the paper tearing device is simplified.

[0045] In some embodiments, the paper tearing device further comprises a position detection device configured to detect whether the workpiece reaches the paper tearing position;

[0046] The paper tearing method further comprises, between the conveying step and the clamping step:

[0047] a chuck position detection step, in which the chuck driving device drives the paper tearing chuck to move to the paper tearing position and stop at the paper tearing position;

[0048] a position detection step, in which when the position detection device detects that the workpiece reaches the paper tearing position, the clamping step is entered.

[0049] The provision of the position detection device realizes automatic detection of the moving position of the workpiece, improves the accuracy of detection, so as to facilitate the paper tearing chuck to clamp the release paper in time, and improves the smoothness of the paper tearing operation.

[0050] In some embodiments, the paper tearing device further comprises a waste box, the opening of the waste box facing upward and being located below the avoiding position;

[0051] The paper tearing method further comprises, after the tearing step:

[0052] a waste collecting step, after the paper tearing chuck moves to the avoiding position, the release of the release paper, the release paper falls into the waste box.

[0053] The setting of the waste box realizes the collection of the torn release paper, so as to facilitate the subsequent processing of the release paper.

[0054] In some embodiments, the paper tearing device further comprises a paper tearing detection mechanism, and the conveying path has a detection position located downstream of the paper tearing position.

[0055] The paper tearing method further comprises, after the tearing step:

[0056] a paper tearing detection step, the paper tearing detection mechanism detects whether the release paper of the workpiece passing through the detection position is completely torn.

[0057] In this way, the paper tearing detection mechanism is used to detect whether the release paper is completely torn, which helps to reduce the probability of battery defects caused by incomplete tearing of the release paper.

[0058] Inventive effects

[0059] Through the present disclosure, a paper tearing device, a battery production line and a paper tearing method with high work efficiency and simple structure can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0060] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for purposes of illustration only and are not considered a limitation of the present disclosure. Moreover, like reference numerals are used to designate identical parts throughout the entire specification. In the drawings:

[0061] FIG. 1 is a perspective structural schematic view of a paper tearing device provided by some embodiments of the present disclosure;

[0062] FIG. 2 is an enlarged view of A in FIG. 1;

[0063] FIG. 3 is a top view of a paper tearing device provided by some embodiments of the present disclosure;

[0064] FIG. 4 is a perspective structural schematic view of a paper tearing mechanism provided by some embodiments of the present disclosure;

[0065] FIG. 5 is a perspective structural schematic view of a paper tearing chuck provided by some embodiments of the present disclosure;

[0066] FIG. 6 is a perspective structural schematic view of a paper tearing detection mechanism of a paper tearing device provided by some embodiments of the present disclosure;

[0067] Fig. 7 is a perspective exploded view of a paper tearing detection mechanism of the paper tearing device according to some embodiments of the present disclosure;

[0068] Fig. 8 is a perspective view of a locking block according to some embodiments of the present disclosure;

[0069] Fig. 9 is a schematic view of a partial structure of a battery production line according to some embodiments of the present disclosure;

[0070] Fig. 10 is a first flowchart of a paper tearing method according to some embodiments of the present disclosure;

[0071] Fig. 11 is a second flowchart of a paper tearing method according to some embodiments of the present disclosure;

[0072] Fig. 12 is a third flowchart of a paper tearing method according to some embodiments of the present disclosure;

[0073] Fig. 13 is a fourth flowchart of a paper tearing method according to some embodiments of the present disclosure.

[0074] BRIEF DESCRIPTION OF DRAWINGS 1000: a sticking device; 100: a sheet; 101: a lug; 200: a workpiece; 1: a conveying mechanism; 2: a paper tearing mechanism; 21: a paper tearing chuck; 211: a base; 212: a first clamping portion; 213: a second clamping portion; 214: a clamping driving device; 22: a chuck driving device; 23: a chuck mounting frame; 31: a sensor; 4: a waste box; 5: a paper tearing detection mechanism; 51: a line-scan camera; 52: a camera driving assembly; 521: a lead screw; 522: a threaded sleeve; 523: a holding portion; 5231: a rotating wheel; 5232: an adjusting handle; 524: a locking assembly; 5241: a locking piece; 5242: a locking block; 5243: a main body portion; 5244: a first clamping portion; 5245: a second clamping portion; 5246: a clamping groove; 525: a lead screw mounting block; 53: a camera mounting frame; 6: a stage; 7: a detection position sensor; 81: a slide rail; 82: a slide block. DETAILED DESCRIPTION

[0075] The embodiments of the technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present disclosure, and therefore only serve as examples, and cannot limit the protection scope of the present disclosure.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure; the terms "include" and "have" and any variations thereof in the specification and the above drawings description of the present disclosure are intended to cover non-exclusive inclusion.

[0077] In the description of the embodiments of the disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0078] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The occurrence of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0079] In the description of the embodiments of the disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0080] In the description of the embodiments of the disclosure, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the disclosure and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation, be operated or used, and therefore cannot be understood as a limitation on the embodiments of the disclosure.

[0081] In the description of the embodiments of the disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the disclosure can be understood according to the specific circumstances.

[0082] In the description of the embodiments of the disclosure, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, which can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0083] Hereinafter, the present disclosure will be described in detail.

[0084] At present, new energy batteries are more and more widely used in life and industry. New energy batteries are not only applied to energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also increasing.

[0085] Some battery modules have a process of pasting a heat insulation pad between two adjacent battery monomers in the grouping process. The heat insulation pad needs to be adhered to one battery monomer first, and then the release paper on the other side of the heat insulation pad is torn off. The exposed adhesive surface is adhered to another battery monomer. The efficiency of tearing off the release paper on the other side is related to the production efficiency of the battery module. Therefore, by improving the tearing efficiency of the release paper on the other side of the heat insulation pad which has been pasted on one battery monomer, the production efficiency of the battery module can be improved. Moreover, by simplifying the structure of the device for tearing off the release paper on the other side, the production line structure of the entire battery module can be simplified.

[0086] The inventors of the present disclosure found that the existing paper tearing process usually supplies battery monomers to the paper tearing device through a tray. The paper tearing device has a mechanism for positioning and jacking the tray, which makes the structure of the paper tearing device complex, the equipment cost high and the space occupied large. Moreover, after the tray with the battery moves to the set position, the tray needs to be positioned, that is, the battery monomer is in a stopped state for the paper tearing operation of the heat insulation pad pasted on the battery monomer, which leads to a long cycle of the paper tearing operation and a low paper tearing efficiency.

[0087] The inventors of the present disclosure found that by continuously conveying the battery monomer with the adhered sheet through the conveying mechanism, and tearing off the release paper on the other side of the sheet by the paper tearing mechanism during the continuous conveying of the battery monomer by the conveying mechanism, in the first aspect, since the battery monomer continuously moves during the entire process of tearing off the release paper, it does not stop, thereby reducing the occupation of the production cycle by the stop of the battery monomer, and improving the efficiency of the paper tearing process. In the second aspect, by directly conveying the battery monomer through the conveying mechanism, the tray is saved, and the mechanism for positioning and jacking the tray is saved, thereby simplifying the structure of the paper tearing device.

[0088] Based on such design concept, the inventor of the present disclosure designs a paper tearing device, which comprises a conveying mechanism and a paper tearing mechanism. The conveying mechanism has a conveying path, and the conveying path has a paper tearing position. The conveying mechanism is configured to convey a workpiece with a sheet attached thereto along the conveying path. The sheet has a first adhesive surface on a side facing away from the workpiece, and the first adhesive surface is covered with a release paper. The paper tearing mechanism comprises a paper tearing chuck and a chuck driving device connected to the paper tearing chuck. The chuck driving device is capable of driving the paper tearing chuck to reciprocate between a paper tearing position and an avoiding position away from the conveying path. The paper tearing chuck is capable of clamping the release paper on the sheet reaching the paper tearing position when located at the paper tearing position. During the continuous conveying of the workpiece by the conveying mechanism and the movement of the paper tearing chuck from the paper tearing position to the avoiding position, the release paper is torn away from the first adhesive surface.

[0089] When the paper tearing device is used to tear the release paper, the conveying mechanism continuously conveys the workpiece. When the workpiece is conveyed to the paper tearing position, the paper tearing chuck clamps the release paper of the sheet attached to the workpiece. Then, the paper tearing chuck moves from the paper tearing position to the avoiding position under the action of the chuck driving device. At the same time, the workpiece continuously moves under the action of the conveying mechanism, so that the release paper is gradually torn away from the first adhesive surface. In this way, the tearing of the release paper is realized. Moreover, the workpiece continuously moves without pausing during the above-mentioned entire process, so that the efficiency of the paper tearing process can be improved. Furthermore, the workpiece is directly conveyed by the conveying mechanism, so that the tray is saved, and the mechanism for positioning and jacking up the tray is saved. Therefore, the structure of the paper tearing device is simplified.

[0090] The paper tearing device provided by the embodiments of the present disclosure can be used in the assembly process of any product comprising a sheet and the sheet being attached between two workpieces, such as but not limited to the assembly process of a battery module. Since the paper tearing device provided by the embodiments of the present disclosure can improve the tearing efficiency and simplify the structure, the paper tearing device provided by the embodiments of the present disclosure can improve the tearing efficiency of the thermal insulation pad and simplify the structure of the paper tearing device of the thermal insulation pad.

[0091] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to FIGS. 1 to 13.

[0092] FIG. 1 is a perspective structural schematic view of a paper tearing device provided by some embodiments of the present disclosure; FIG. 2 is an enlarged view of A in FIG. 1; FIG. 3 is a top view of the paper tearing device provided by some embodiments of the present disclosure; FIG. 4 is a perspective structural schematic view of a paper tearing mechanism provided by some embodiments of the present disclosure; FIG. 5 is a perspective structural schematic view of a paper tearing chuck provided by some embodiments of the present disclosure; FIG. 6 is a perspective structural schematic view of a paper tearing detection mechanism of the paper tearing device provided by some embodiments of the present disclosure; FIG. 7 is a perspective exploded view of the paper tearing detection mechanism of the paper tearing device provided by some embodiments of the present disclosure; and FIG. 8 is a perspective structural schematic view of a locking block provided by some embodiments of the present disclosure.

[0093] In some embodiments of the present disclosure, a first direction, a second direction and a third direction are set for the purpose of illustration, and the first direction, the second direction and the third direction are directions intersecting with each other, where the intersecting with each other includes the perpendicular intersection with each other. For the purpose of understanding the embodiments of the present disclosure, in the embodiments shown in FIGS. 1-9, the first direction, the second direction and the third direction are taken as an example in which the three directions are perpendicular to each other, but those skilled in the art should understand that the embodiments of the present disclosure are not limited to the case where the three directions are perpendicular to each other. For the purpose of illustration, as shown by the arrows in FIGS. 1, 3, 4, 6-9, the direction in which the arrow X is located is taken as the first direction, the direction in which the arrow Y is located is taken as the second direction, and the direction in which the arrow Z is located is taken as the third direction. Sometimes, the direction in which the arrow Z points along the third direction is also referred to as "upward", and the opposite direction is referred to as "downward".

[0094] The first aspect of the embodiments of the present disclosure provides a paper tearing device, as shown in FIGS. 1-4, which includes a conveying mechanism 1 and a paper tearing mechanism 2. The conveying mechanism 1 has a conveying path, and the conveying path has a paper tearing position. The conveying mechanism 1 is configured to convey a workpiece 200 having a sheet 100 adhered thereto along the conveying path. The side of the sheet 100 opposite to the workpiece 200 has a first adhesive surface, and the first adhesive surface is covered with a release paper. The paper tearing mechanism 2 includes a paper tearing chuck 21 and a chuck driving device 22 connected to the paper tearing chuck 21. The chuck driving device 22 is capable of driving the paper tearing chuck 21 to reciprocate between a chucking position and a avoiding position away from the conveying path. The paper tearing chuck 21 is capable of clamping the release paper on the sheet 100 reaching the paper tearing position when located at the chucking position. During the continuous conveying of the workpiece 200 by the conveying mechanism 1 and the movement of the paper tearing chuck 21 from the chucking position to the avoiding position, the release paper is torn away from the first adhesive surface.

[0095] The sheet 100 is a sheet-shaped object having adhesive surfaces on both sides, and the adhesive surface on one side has been pasted to the workpiece 200, and the adhesive surface on the other side is covered with a release paper. The embodiments of the present disclosure are used to tear off the release paper on the other side to expose the adhesive surface on the other side, so that the sheet can be adhered to another workpiece 200 through the exposed adhesive surface on the other side. The sheet 100 can be a glue material used only for adhesion between two workpieces 200, or a glue material having adhesion function and other functions, such as but not limited to a heat insulation pad having heat insulation function, a heat conduction pad having heat conduction function, an insulation pad having insulation function, etc.

[0096] The workpiece 200 can be, but is not limited to, a battery cell. The battery cell refers to a basic unit capable of realizing mutual conversion between chemical energy and electrical energy, and can be used to make a battery module or a battery pack, thereby being used to supply power to an electrical device. The battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after the battery cell is discharged and continues to be used. The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the present disclosure is not limited thereto.

[0097] The conveying mechanism 1 includes, but is not limited to, at least one of a belt conveying mechanism, a chain conveying mechanism, a roller conveying mechanism, a speed-up chain conveying mechanism, and a roller conveying mechanism.

[0098] The "tear-off paper clamp 21 can clamp the tab 101 of the release paper covering the sheet 100 on the workpiece 200 in the tear-off paper clamp position when the leading end of the workpiece 200 moves to the tear-off paper clamp position" means that when the leading end of the workpiece 200 moves to the tear-off paper clamp position along the conveying direction, the tear-off paper clamp 21 in the tear-off paper clamp position can clamp the tab 101 of the release paper covering the sheet 100 on the workpiece 200. The tab 101 of the release paper is a part of the release paper that protrudes beyond the edge of the first adhesive surface of the sheet 100, and the tab 101 is used for clamping by the tear-off paper clamp 21 to facilitate the tearing of the release paper. When the tear-off paper clamp 21 is in the tear-off paper clamp position, at least a part of the tear-off paper clamp 21 extends into the conveying path, and the part extending into the conveying path can clamp the tab 101 of the release paper on the sheet 100 on the workpiece 200, and then the tear-off paper clamp 21 moves to the avoidance position with the tab 101 of the release paper clamped, so as to avoid the conveying path, so that the sheet 100 can move continuously along the conveying path.

[0099] The avoidance position avoids the conveying path, which means that the avoidance position is not on the conveying path, so that the tear-off paper clamp 21 can be moved away from the conveying path when it is in the avoidance position, and will not block the continuous movement of the workpiece 200, so that the workpiece 200 can continuously move along the conveying path under the conveying of the conveying mechanism 1, that is, the workpiece 200 does not stop during the process of passing through the tear-off paper clamp position and keeps moving. Moreover, the distance between the tear-off paper clamp 21 and the workpiece 200 will increase during the movement of the tear-off paper clamp 21 towards the avoidance position, thereby increasing the speed of tearing the release paper on the sheet 100 pasted on the workpiece 200.

[0100] It can be understood that the workpiece 200 reaching the tear-off paper clamp position means that the leading end of the workpiece 200 moves to the tear-off paper clamp position along the conveying direction. The workpiece 200 passing through the tear-off paper clamp position means the entire process from the leading end of the workpiece 200 moving to the tear-off paper clamp position to the tail end of the workpiece 200 leaving the tear-off paper clamp position.

[0101] The "release paper on the workpiece 200" refers to the release paper attached to the workpiece 200, i.e., the release paper covered by the first adhesive surface of the sheet 100 pasted to the workpiece 200. The release paper can be at any orientation relative to the workpiece 200, on the upper side or lower side of the workpiece 200 along the vertical direction, or on the front side or rear side of the workpiece 200 along the conveying direction, or on the left side or right side of the workpiece 200 along the transverse direction intersecting the vertical direction and the conveying direction, and the like.

[0102] When the release paper is torn off using the paper tearing device provided by the embodiments of the present disclosure, the conveying mechanism 1 continuously conveys the workpiece 200. When the workpiece 200 is conveyed to the paper tearing position, the paper tearing chuck 21 clamps the tab 101 of the release paper of the sheet 100 pasted to the workpiece 200. Then, the paper tearing chuck 21 moves from the clamping position to the avoiding position under the action of the chuck driving device 22, and at the same time, the workpiece 200 continuously moves under the action of the conveying mechanism 1, so that the release paper is gradually torn off the first adhesive surface. In this way, the tearing of the release paper is realized. Moreover, the workpiece 200 continuously moves without pausing during the above-mentioned entire process, and therefore, the efficiency of the paper tearing process can be improved. Moreover, the workpiece 200 is directly conveyed by the conveying mechanism 1, and the tray is omitted, and the mechanism for positioning and jacking the tray is omitted, and therefore, the structure of the paper tearing device is simplified.

[0103] In some embodiments of the present disclosure, the conveying path extends along a first direction X, and the chuck driving device 22 is capable of driving the paper tearing chuck 21 to reciprocate along a second direction Y intersecting the first direction X between the clamping position and the avoiding position, and the sheet 100 is pasted to the surface of one side of the workpiece 200 along the second direction Y.

[0104] The chuck driving device 22 can include but is not limited to a linear motor or a linear cylinder.

[0105] The moving direction of the paper tearing chuck 21 and the extending direction of the conveying path intersect, which is beneficial to peel the release paper from the first adhesive surface, thereby improving the tearing effect, and is also beneficial to avoid the paper tearing chuck 21 from the conveying path, so that the workpiece 200 can continuously move along the conveying path, thereby facilitating the smooth progress of the paper tearing operation.

[0106] In some embodiments of the present disclosure, as shown in FIG. 4, the paper tearing chuck 21 is installed on the output end of the chuck driving device 22 through the chuck mounting frame 23.

[0107] In some embodiments of the present disclosure, as shown in FIG. 1, the conveying mechanism 1 carries the workpiece 200 from one side of a third direction Z intersecting the first direction X and the second direction Y, and the intersection includes perpendicular intersection.

[0108] The surface of the workpiece 200 in contact with the conveying mechanism 1 is a bottom surface, the surface opposite to the bottom surface along the third direction Z is a top surface, the surface in front of the two surfaces opposite along the first direction X is a front surface, the surface behind is a rear surface, and the two surfaces opposite along the second direction Y are both side surfaces, that is, the sheet 100 is pasted on one side surface of the workpiece 200.

[0109] In this way, the sheet 100 is pasted on the side surface of the workpiece 200 conveyed on the conveying mechanism 1, and during the continuous conveying of the workpiece 200, the paper tearing clamp head 21 clamps the sheet 100 pasted on the side surface of the workpiece 200 and moves away from the workpiece 200 along the transverse direction (the second direction Y) of the workpiece 200, so that the release paper can be peeled off quickly, and the paper tearing efficiency is improved.

[0110] In some embodiments of the present disclosure, the paper tearing device further comprises a position detection device configured to detect whether the workpiece 200 reaches the paper tearing position, and in the case that the workpiece 200 reaches the paper tearing position, the paper tearing clamp head 21 clamps the release paper on the workpiece 200.

[0111] The provision of the position detection device realizes automatic detection of the moving position of the workpiece 200, improves the accuracy of detection, so that the paper tearing clamp head 21 can clamp the release paper in time, and the smoothness of the paper tearing operation is improved.

[0112] In some embodiments of the present disclosure, the position detection device comprises a sensor 31 and / or an encoder.

[0113] Exemplarily, the position detection device comprises an encoder (not shown in the figure), and the encoder and the driving system provided with power in the conveying mechanism 1 are used in combination, so that accurate control and positioning of the conveying position of the workpiece 200 by the conveying mechanism 1 can be realized.

[0114] Exemplarily, the position detection device comprises a sensor 31, which detects whether the workpiece 200 reaches the paper tearing position by inductive detection. The sensor 31 includes but is not limited to a reflection sensor, a proximity sensor or a distance measuring sensor, and the specific detection principle can refer to the prior art, which will not be described here.

[0115] Exemplarily, the position detection device comprises an encoder and a sensor 31. When the detection results of the encoder and the sensor 31 are the same, it indicates that the detection result is accurate, and the subsequent action of clamping the release paper can be performed. When one of the encoder and the sensor 31 detects the workpiece 200 and the other does not, it indicates that one of them is malfunctioning, and the detection result is not accurate, so an alarm signal is sent to prompt the maintenance personnel to perform maintenance, and the subsequent pressing or clamping action is not performed.

[0116] As for the selection of the encoder and the sensor 31, the present disclosure is not particularly limited as long as it is suitable for the paper tearing device, and it can be self-made or purchased from the market.

[0117] In this way, automatic detection of the workpiece 200 in place is achieved, the accuracy of detection is improved, the release paper is clamped in time by the paper tearing chuck 21, and the smoothness of the paper tearing operation is improved.

[0118] In some embodiments of the present disclosure, the paper tearing device further comprises a waste box 4, the opening of the waste box 4 faces upward and is located below the avoidance position, and can receive the release paper released by the paper tearing chuck 21 located in the avoidance position.

[0119] The waste box 4 is provided, which realizes the collection of the torn release paper, so as to facilitate the subsequent processing of the release paper.

[0120] In some embodiments of the present disclosure, the paper tearing device further comprises a paper tearing detection mechanism 5, the conveying path has a detection position located downstream of the paper tearing position, and the paper tearing detection mechanism 5 is configured to detect whether the release paper of the workpiece 200 passing through the detection position is completely torn off.

[0121] Through the detection of the workpiece 200 after the paper tearing action by the paper tearing detection mechanism 5, it is known whether the release paper covering the first bonding surface of the sheet 100 bonded by the workpiece 200 is completely torn off, and for the completely torn off, the next operation is immediately performed, and for the not completely torn off, it cannot flow into the next process, and the workpiece 200 not completely torn off needs to be collected, thereby reducing the probability of group failure caused by incomplete tearing of the release paper.

[0122] In this way, the paper tearing detection mechanism 5 is used to detect whether the release paper is completely torn off, which is beneficial to reduce the probability of group failure caused by incomplete tearing of the release paper.

[0123] In some embodiments of the present disclosure, as shown in FIG. 3, the conveying mechanism 1 is provided with a detection position sensor 7, which is used to detect whether the workpiece 200 reaches the detection position.

[0124] The detection position sensor 7 includes but is not limited to a reflection sensor, a proximity sensor or a distance measuring sensor, and the specific detection principle can refer to the prior art, which will not be described here.

[0125] In some embodiments of the present disclosure, as shown in FIG. 3 and FIG. 6, the paper tearing detection mechanism 5 comprises a line-scan camera 51, which is located on one side of the conveying path along a direction perpendicular to the extension direction of the conveying path.

[0126] For example, the line-scan camera 51 is located on one side of the conveying path along the second direction Y, and the lens of the line-scan camera 51 faces the conveying path along the second direction Y.

[0127] The line scan camera 51 is suitable for photographing moving objects. Therefore, by using the line scan camera 51, the continuously moving workpiece 200 can be photographed, and the removal of the release liner on the workpiece 200 can be detected more accurately. Furthermore, the distribution of the line scan camera 51 allows it to capture images of the sheet 100 on the workpiece 200 for a longer period, improving the clarity of the image and thus enhancing the accuracy of the inspection.

[0128] In some embodiments of this disclosure, the paper tearing detection mechanism 5 further includes a camera driving component 52, the output end of which is connected to the line scan camera 51, and can drive the line scan camera 51 to move closer to or away from the detection position, so that the distance between the line scan camera 51 and the workpiece 200 passing the detection position is within a set distance range.

[0129] To improve the clarity of the images captured by the line scan camera 51, the distance between the line scan camera 51 and the sheet 100 on the workpiece 200 needs to be maintained within a set distance range. However, for workpieces 200 with different dimensions along the second direction Y, if the line scan camera 51 does not move, the distance between it and the workpiece 200 at the detection position will be different, which will affect the clarity of the images. Therefore, by adjusting the position of the line scan camera 51 through the camera drive component 52, the distance between the line scan camera 51 and the workpiece 200 at the detection position can be kept within the set distance range, thereby enabling the paper tearing device to be applicable to workpieces 200 of different specifications and improving compatibility.

[0130] In some embodiments of this disclosure, the line scan camera 51 is connected to the output of the camera drive assembly 52 via a camera mounting bracket 53.

[0131] In some embodiments of this disclosure, the camera drive assembly 52 includes a lead screw 521 and a threaded sleeve 522. The extension direction of the lead screw 521 intersects the extension direction of the conveying path. The threaded sleeve 522 is threadedly connected to the lead screw 521, and the line scan camera 51 is connected to the threaded sleeve 522.

[0132] For example, the lead screw 521 extends along the second direction Y. The rotation of the lead screw 521 drives the threaded sleeve 522 to move along the second direction Y, thereby driving the line scan camera 51 to move closer to or away from the detection position along the second direction Y.

[0133] In this way, the camera driver component 52 can drive the line scan camera 51 to move closer to or further away from the detection position. Moreover, the camera driver component 52 has a simple structure and high position adjustment accuracy.

[0134] In some embodiments of the present disclosure, as shown in FIGS. 6 and 7, the camera driving assembly 52 further comprises a handle 523 and a locking assembly 524. The handle 523 is connected to the screw rod 521. The handle 523 can drive the screw rod 521 to rotate around the central axis of the screw rod 521. The locking assembly 524 is configured to lock the screw rod 521.

[0135] The handle 523 can drive the screw rod 521 to rotate around the central axis of the screw rod 521, so that the threaded sleeve 522 moves along the screw rod 521, thereby adjusting the distance between the line-scan camera 51 and the detection position. After adjustment, the screw rod 521 is locked by the locking assembly 524, i.e., the locking assembly 524 makes the screw rod 521 not easy to rotate, thereby fixing the position of the threaded sleeve 522, and then keeping the position of the line-scan camera 51. Moreover, the camera driving assembly 52 has simple structure, low cost, and convenient adjustment.

[0136] For example, the screw rod 521 is connected to a screw rod mounting block 525 around the central axis of the screw rod 521. The locking assembly 524 is connected to the screw rod mounting block 525.

[0137] In some embodiments of the present disclosure, as shown in FIG. 7, the handle 523 comprises a rotating wheel 5231 and an adjusting handle 5232. The rotating wheel 5231 is coaxially connected to one end of the screw rod 521. The adjusting handle 5232 is eccentrically connected to the rotating wheel 5231. By holding the adjusting handle 5232 to rotate the rotating wheel 5231, the screw rod 521 can be driven to rotate, thereby adjusting the position of the line-scan camera 51.

[0138] In some embodiments of the present disclosure, the outer periphery of the rotating wheel 5231 is provided with a plurality of protrusions. The protrusions can increase the friction, and the rotating wheel 5231 can be rotated by holding the outer periphery of the rotating wheel 5231.

[0139] In some embodiments of the present disclosure, as shown in FIG. 7, the locking assembly 524 comprises a locking block 5242 and a locking piece 5241. The screw rod 521 passes through the locking block 5242. Part of the locking piece 5241 extends into the locking block 5242. By rotating the locking piece 5241 in one direction of a clock, the locking block 5242 can tightly hold the screw rod 521. By rotating the locking piece 5241 in the other direction of the clock, the locking block 5242 can release the screw rod 521, thereby achieving locking or unlocking of the screw rod 521.

[0140] In some embodiments of the present disclosure, as shown in FIG. 8, the locking block 5242 comprises a main body portion 5243, a first clamping portion 5244 and a second clamping portion 5245, both of which are connected to the main body portion 5243, the main body portion 5243 is connected to the screw rod mounting block 525, a clamping groove 5246 through the screw rod 521 is formed between the first clamping portion 5244 and the second clamping portion 5245, the locking member 5241 is threadedly connected to the first clamping portion 5244 and the second clamping portion 5245, and by rotating the locking member 5241, the first clamping portion 5244 and the second clamping portion 5245 are brought closer to or farther away from each other, so as to clamp or release the screw rod 521.

[0141] In some embodiments of the present disclosure, as shown in FIG. 8, the main body portion 5243, the first clamping portion 5244 and the second clamping portion 5245 are integrally formed.

[0142] In some embodiments of the present disclosure, as shown in FIGS. 1 and 3, the paper tearing device further comprises a table 6, and the conveying mechanism 1, the paper tearing mechanism 2 and the camera driving assembly 52 are all mounted on the table top of the table 6.

[0143] In this way, the paper tearing device becomes a whole, has high structural strength, and is convenient to move as a whole.

[0144] In some embodiments of the present disclosure, as shown in FIGS. 1 and 6, at least one sliding rail 81 is arranged on the table top of the table 6, and the bottom of the camera mounting bracket 53 is connected to at least one sliding block 82, each sliding rail 81 extends along the second direction Y, and the sliding rail 81 and the sliding block 82 are in one-to-one sliding connection.

[0145] For example, the chuck driving device 22 of the paper tearing mechanism 2 is mounted on the table top of the table 6. The waste box 4 is mounted on the table 6, and part of the waste box 4 is arranged below the table top of the table 6.

[0146] In some embodiments of the present disclosure, as shown in FIG. 5, the paper tearing chuck 21 comprises a base body 211, a first clamping portion 212 and a second clamping portion 213, the base body 211 is mounted on the output end of the chuck driving device 22; the first clamping portion 212 and the second clamping portion 213 are both arranged on the base body 211 and are configured to be capable of approaching or moving away from each other.

[0147] The first clamping portion 212 and the second clamping portion 213 approach each other to clamp the release paper covering the sheet 100, and move away from each other after the release paper is torn off, so as to release the release paper, so that the paper tearing chuck 21 can tear the release paper of the next sheet 100 conveyed. The first clamping portion 212 and the second clamping portion 213 both have clamping surfaces facing each other, and the clamping surface of at least one of the first clamping portion 212 and the second clamping portion 213 is provided with a protrusion structure, so as to improve the clamping degree of the release paper.

[0148] Exemplarily, the first clamping part 212 and the second clamping part 213 can be driven to move close to or away from each other by the driving of the driving device connected thereto respectively, or one of the two can be connected with the driving device, and the driving of the driving device can drive one of the first clamping part 212 and the second clamping part 213 to move towards or away from the other, so as to realize the function of moving close to or away from each other of the first clamping part 212 and the second clamping part 213.

[0149] In this way, the function of the paper tearing chuck 21 being capable of clamping the release paper of the sheet 100 is realized, and the structure of the paper tearing chuck 21 is simple.

[0150] In some embodiments of the present disclosure, the first clamping part 212 is fixedly connected to the base body 211, and the paper tearing chuck 21 further comprises a clamping driving device 214, the clamping driving device 214 is installed on the base body 211, and the second clamping part 213 is connected to the output end of the clamping driving device 214 and can move close to or away from the first clamping part 212 under the driving of the clamping driving device 214.

[0151] The clamping driving device 214 includes but is not limited to a linear cylinder or a linear motor.

[0152] In this way, the function of the paper tearing chuck 21 being capable of clamping the release paper of the sheet 100 is realized. Moreover, only the second clamping part 213 is connected to the clamping driving device 214, the number of driving devices is saved, the cost is saved, and the structure is simplified.

[0153] In some embodiments of the present disclosure, as shown in FIG. 5, the first clamping part 212 and the base body 211 are integrally formed. The structural strength is improved, and the manufacturing efficiency of the paper tearing chuck 21 is improved.

[0154] In some embodiments of the present disclosure, as shown in FIGS. 1 and 3, two conveying mechanisms 1 and two paper tearing mechanisms 2 are provided, the conveying paths of the two conveying mechanisms 1 are parallel and arranged side by side along a direction perpendicular to the conveying paths, and one of the two conveying mechanisms 1 is provided with one of the two paper tearing mechanisms 2 on each side thereof.

[0155] Exemplarily, the conveying paths of the two conveying mechanisms 1 extend along the first direction X and are arranged side by side along the second direction Y.

[0156] In this way, the conveying paths of the two conveying mechanisms 1 are close to each other, the workpiece 200 can be transferred to the two conveying paths, the operation difficulty is simplified, and the two conveying mechanisms 1 have a relatively long size in the first direction X, so that when the two conveying mechanisms 1 are arranged close to each other, a larger space is left on both sides of the two conveying mechanisms 1 along the second direction Y, so as to facilitate the arrangement of other components.

[0157] In some embodiments of the present disclosure, the workpiece 200 is a battery cell, the sheet 100 is a thermal insulation pad, a surface of the battery cell at one end along the third direction Z is a bottom surface, the bottom surface contacts the conveying mechanism 1, a surface of the battery cell opposite to the bottom surface along the third direction Z is a top surface, the top surface is provided with a pole, a surface of the battery cell at the front along the conveying direction among two surfaces opposite along the first direction X is a front surface, a surface of the battery cell at the back along the conveying direction among the two surfaces opposite along the first direction X is a back surface, both of the two surfaces opposite along the second direction Y are side surfaces, the side surfaces are the largest surfaces of the battery cell, and the thermal insulation pad is attached to one side surface of the battery cell.

[0158] In this way, the conveying mechanism 1 conveys the vertical battery cell, and the paper tearing mechanism 2 tears off the release paper of the thermal insulation pad attached to the side surface of the battery cell.

[0159] FIG. 9 is a schematic diagram of a partial structure of a battery production line according to some embodiments of the present disclosure.

[0160] The second aspect of the embodiments of the present disclosure provides a battery production line, as shown in FIG. 9, the battery production line comprises the attaching device 1000 and the paper tearing device according to the first aspect, and the attaching device 1000 is configured to attach the thermal insulation pad as the sheet 100 to the outer surface of the battery cell as the workpiece 200 through the second adhesive surface.

[0161] Since the battery production line comprises the paper tearing device according to the first aspect, the battery production line has all the beneficial effects of the paper tearing device, and thus the battery production line has high production efficiency and simple structure.

[0162] FIG. 10 is a first flowchart of a paper tearing method according to some embodiments of the present disclosure; FIG. 11 is a second flowchart of a paper tearing method according to some embodiments of the present disclosure; FIG. 12 is a third flowchart of a paper tearing method according to some embodiments of the present disclosure; and FIG. 13 is a fourth flowchart of a paper tearing method according to some embodiments of the present disclosure.

[0163] The third aspect of the embodiments of the present disclosure provides a paper tearing method using a paper tearing device, the paper tearing device comprising a conveying mechanism 1 and a paper tearing mechanism 2, the conveying mechanism 1 having a conveying path, the conveying path having a paper tearing position, the conveying mechanism 1 being configured to convey a workpiece 200 with a sheet 100 attached thereto along the conveying path, one side of the sheet 100 opposite to the workpiece 200 having a first adhesive surface, and the first adhesive surface being covered with a release paper; the paper tearing mechanism 2 comprising a paper tearing chuck 21 and a chuck driving device 22 connected to the paper tearing chuck 21, the chuck driving device 22 being capable of driving the paper tearing chuck 21 to reciprocate between the paper tearing position and an avoiding position away from the conveying path.

[0164] As shown in FIG. 10, the paper tearing method comprises:

[0165] S100, conveying step: the conveying mechanism conveys the workpiece;

[0166] S400, clamping step: the paper tearing clamp head clamps the release paper on the workpiece reaching the paper tearing position at the paper clamping position;

[0167] S500, tearing step: the conveying mechanism continuously conveys the workpiece and the clamp head driving device drives the paper tearing clamp head to move from the paper clamping position to the avoiding position, so that the release paper is torn off the first adhesive surface.

[0168] The paper tearing clamp head 21 can reach the paper clamping position before the workpiece 200 reaches the paper tearing position, and then the paper tearing clamp head 21 clamps the lug 101 of the release paper pasted on the workpiece 200 at the moment when the workpiece 200 reaches the paper tearing position; the paper tearing clamp head 21 can also move to the paper clamping position at the moment when the workpiece 200 reaches the paper tearing position, and clamp the release paper on the workpiece 200 at the moment of simultaneous arrival. The paper tearing clamp head 21 moves towards the avoiding position at the moment when the lug 101 of the release paper is clamped at the paper clamping position, avoiding the conveying path and avoiding the obstruction of the workpiece 200 by the paper tearing clamp head 21, so that the sheet 100 can continuously move along the conveying path, and with the movement of the paper tearing clamp head 21 and the continuous movement of the workpiece 200, the lug 101 is quickly away from the workpiece 200, so that the release paper is quickly torn off.

[0169] In the above entire process, the workpiece 200 continuously moves without pausing, so the efficiency of the paper tearing process can be improved; and the workpiece 200 is directly conveyed by the conveying mechanism 1, so the tray is saved, and the mechanism for positioning and lifting the tray is saved, thus simplifying the structure of the paper tearing device,

[0170] In some embodiments of the present disclosure, the paper tearing device further comprises a position detection device configured to detect whether a workpiece reaches the paper tearing position;

[0171] As shown in FIG. 11, the paper tearing method further comprises, between the conveying step and the clamping step:

[0172] S200, clamp head position detection step: the clamp head driving device drives the paper tearing clamp head to move to the paper clamping position and stop at the paper clamping position;

[0173] S300, position detection step: when the position detection device detects that a workpiece reaches the paper tearing position, proceed to the clamping step.

[0174] The arrangement of the in-position detection device realizes automatic detection of the moving position of the workpiece 200, improves the detection accuracy, so that the paper tearing clamp 21 can timely clamp the release paper, and the smoothness of the paper tearing operation is improved. Moreover, the paper tearing clamp 21 reaches the paper clamping position before the workpiece 200 reaches the paper tearing position, and the paper tearing clamp 21 and the workpiece 200 reach in sequence, which is beneficial to reducing the probability of interference between the two, thereby improving the smoothness of the paper tearing operation.

[0175] In some embodiments of the present disclosure, the paper tearing device further comprises a waste box 4, and the opening of the waste box 4 faces upward and is located below the avoiding position;

[0176] As shown in FIG. 12, the paper tearing method further comprises, after the tearing step:

[0177] S600, a waste collecting step, the paper tearing clamp releases the release paper after moving to the avoiding position, and the release paper falls into the waste box.

[0178] The arrangement of the waste box 4 realizes collection of the torn release paper, so that subsequent processing of the release paper is facilitated.

[0179] In some embodiments of the present disclosure, the paper tearing device further comprises a paper tearing detection mechanism 5, and the conveying path has a detection position located downstream of the paper tearing position;

[0180] As shown in FIG. 13, the paper tearing method further comprises, after the tearing step:

[0181] S700, a paper tearing detection step: the paper tearing detection mechanism detects whether the release paper of the workpiece passing through the detection position is completely torn.

[0182] In this way, the paper tearing detection mechanism is used to detect whether the release paper is completely torn, which is beneficial to reducing the probability of battery defects caused by incomplete tearing of the release paper.

[0183] In the following, specific examples of some embodiments of the present disclosure are described in conjunction with the accompanying drawings.

[0184] As a specific example, the paper tearing device comprises a release paper clamp jaw (paper tearing clamp 21), an in-position sensor (sensor 31), a waste bin (waste box 4), a clamp jaw servo shaft (clamp head driving device 22), a camera adjusting lead screw (camera driving assembly 52), a line-scan camera (line-scan camera 51), a conveying belt (conveying mechanism 1). The arrival of the battery cell (battery monomer) at the paper tearing position triggers the sensor 31, the release paper clamp jaw closes to clamp the release paper, the battery cell continues to move forward, the clamp jaw servo shaft drives the release paper clamp jaw to move backward, and the release paper is gradually torn off. The release paper clamp jaw drops the waste into the waste bin, when the battery cell moves to the camera detection position (detection position), the line-scan camera is turned on, the battery cell continues to move, the line-scan camera scans the entire surface of the battery cell, and whether the release paper is completely torn is judged.

[0185] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than limit them; even though the present disclosure has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features thereof can be replaced equivalently; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present disclosure, and they should be included in the scope of the specification of the present disclosure. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way.

Claims

1. A paper tearing device, comprising: a conveying mechanism having a conveying path with a paper tearing position, the conveying mechanism configured to convey a workpiece with a sheet adhered thereto along the conveying path, the sheet having a first adhesive surface on a side opposite to the workpiece, and the first adhesive surface being covered with a release paper; a paper tearing mechanism including a paper tearing chuck and a chuck driving device connected to the paper tearing chuck, the chuck driving device capable of driving the paper tearing chuck to reciprocate between a paper clamping position and an avoiding position away from the conveying path, the paper tearing chuck being capable of clamping the release paper on the sheet of the workpiece reaching the paper tearing position when located at the paper clamping position, the release paper being torn off the first adhesive surface during the continuous conveying of the workpiece by the conveying mechanism and the movement of the paper tearing chuck from the paper clamping position to the avoiding position.

2. The paper tearing device of claim 1, wherein, the conveying path extending along a first direction, the chuck driving device capable of driving the paper tearing chuck to reciprocate between the paper clamping position and the avoiding position along a second direction intersecting the first direction, the sheet being adhered to a surface of a side of the workpiece along the second direction.

3. The paper tearing device of claim 2, wherein, the conveying mechanism carrying the workpiece from a side of a third direction intersecting both the first direction and the second direction, the intersection including a perpendicular intersection.

4. The paper tearing device according to any one of claims 1 to 3, wherein, the paper tearing device further comprising a position detection device configured to detect whether a workpiece reaches the paper tearing position, the paper tearing chuck clamping the release paper on the workpiece when a workpiece reaches the paper tearing position.

5. The paper tearing device according to any one of claims 1 to 4, wherein, the paper tearing device further comprising a waste box having an opening upwardly facing and located below the avoiding position, capable of receiving the release paper released by the paper tearing chuck located at the avoiding position.

6. The paper tearing device according to any one of claims 1 to 5, wherein, the paper tearing device further comprising a paper tearing detection mechanism, the conveying path having a detection position located downstream of the paper tearing position, the paper tearing detection mechanism configured to detect whether the release paper of a workpiece passing through the detection position is completely torn off.

7. The paper tearing device of claim 6, wherein, the paper tearing detection mechanism including a line-scan camera located at a side of the conveying path along a direction perpendicular to the extending direction of the conveying path.

8. The paper tearing device of claim 7, wherein, the paper tearing detection mechanism further comprising a camera driving assembly having an output connected to the line-scan camera, capable of driving the line-scan camera to approach or move away from the detection position, so that the distance between the line-scan camera and the workpiece passing through the detection position is within a set distance range.

9. The paper tearing device of claim 8, wherein, the camera driving assembly including a lead screw and a threaded sleeve, the extending direction of the lead screw intersecting the extending direction of the conveying path, the threaded sleeve being threadedly connected to the lead screw, and the line-scan camera being connected to the threaded sleeve.

10. The paper tearing device of claim 9, wherein, the camera driving assembly further comprising a holding portion connected to the lead screw and a locking assembly configured to lock the lead screw, the holding portion being capable of driving the lead screw to rotate around the central axis of the lead screw by rotating the holding portion.

11. The paper tearing device of any one of claims 8 to 10, wherein, the paper tearing device further comprising a stage, the conveying mechanism, the paper tearing mechanism and the camera driving assembly all being mounted on a stage surface of the stage.

12. The paper tearing device of any one of claims 1 to 11, wherein, The paper tearing chuck comprises: a base body mounted to an output end of the chuck driving device; a first clamping part and a second clamping part, both provided on the base body and configured to approach or move away from each other.

13. The paper tearing device of claim 12, wherein, The first clamping part is fixedly connected to the base body, The paper tearing chuck further comprises a clamping driving device mounted to the base body, and the second clamping part is connected to an output end of the clamping driving device and can approach or move away from the first clamping part under the driving of the clamping driving device.

14. The paper tearing device of claim 12 or 13, wherein, The first clamping part and the base body are integrally formed.

15. The paper tearing device according to any one of claims 1 to 14, wherein, The conveying mechanism and the paper tearing mechanism are both provided in two, the conveying paths of the two conveying mechanisms are parallel and arranged side by side along a direction perpendicular to the conveying paths, and each side of the two conveying mechanisms opposite to each other is provided with one paper tearing mechanism.

16. A battery production line comprising: a sticking device configured to stick a thermal insulation pad as a sheet to an outer surface of a battery cell as a workpiece through a second adhesive surface; The paper tearing device according to any one of claims 1 to 15.

17. A paper tearing method using a paper tearing device, the paper tearing device comprising a conveying mechanism having a conveying path with a paper tearing position thereon, the conveying mechanism being configured to convey a workpiece with a sheet adhered thereto along the conveying path, the sheet having a first adhesive surface on a side facing away from the workpiece and being covered with a release paper; and a paper tearing mechanism comprising a paper tearing chuck and a chuck driving device connected to the paper tearing chuck, the chuck driving device being capable of driving the paper tearing chuck to reciprocate between a paper clamping position and an avoiding position away from the conveying path; The paper tearing method comprises: a conveying step in which the conveying mechanism conveys the workpiece; a clamping step in which the paper tearing chuck clamps the release paper on the workpiece reaching the paper tearing position at the paper clamping position; a tearing step in which the conveying mechanism continuously conveys the workpiece and the chuck driving device drives the paper tearing chuck to move from the paper clamping position to the avoiding position, so that the release paper is torn away from the first adhesive surface.

18. The paper tearing method of claim 17, wherein, The paper tearing device further comprises a position detection device configured to detect whether a workpiece reaches the paper tearing position; The paper tearing method further comprises, between the conveying step and the clamping step: a chuck position detection step in which the chuck driving device drives the paper tearing chuck to move to the paper clamping position and stop at the paper clamping position; a position detection step in which, when the position detection device detects that a workpiece reaches the paper tearing position, the process proceeds to the clamping step.

19. The paper tearing method according to claim 17, wherein, The paper tearing device further comprises a waste box, the opening of the waste box faces upward and is located below the avoiding position; The paper tearing method further comprises, after the tearing step: a waste collection step in which, after the paper tearing chuck moves to the avoiding position, the release paper is released and falls into the waste box.

20. The paper tearing method of claim 17, wherein, The paper tearing device further comprises a paper tearing detection mechanism, and the conveying path has a detection position located downstream of the paper tearing position; The paper tearing method further comprises, after the tearing step: A paper tearing detection step in which a paper tearing detection mechanism detects whether the release paper of the workpiece passing through the detection position is completely torn off.

Images