Battery cell coating top patch preparation system and coating machine

Abstract

The utility model discloses a battery cell enveloping top patch preparation system and enveloping machine, the preparation system comprises a top patch storage mechanism, and a top patch automatic ejection mechanism, a horizontal self-correction mechanism and a detection mechanism which are arranged on the top patch storage mechanism, the top patch storage mechanism comprises a base and support legs for supporting the base, the horizontal self-correction mechanism is arranged on the top patch storage mechanism, and the detection mechanism is arranged on the top patch storage mechanism. The base is provided with a chip taking groove which is used for accommodating the top chip and is open at the top; the top patch automatic ejection mechanism comprises a rectangular loading plate and a jacking driving device; the loading plate is movably arranged in the sheet taking groove; the jacking driving device is installed at the bottom of the base, and the jacking end of the jacking driving device is connected with the loading plate. The horizontal self-correcting mechanism comprises at least one set of transverse correcting unit and / or longitudinal correcting unit; the detection mechanism is arranged on the base. The device has the beneficial effects that the device has the functions of chip transfer and correction, the mechanical structure is simplified, the equipment space is saved, the equipment manufacturing and maintenance cost and the fault rate are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery core coating, in particular to a battery core coating top patch preparation system and a coating machine. Background Art

[0002] With the rapid economic development and the continuous growth of energy demand, in this context, lithium batteries, as an efficient and environmentally friendly energy storage technology, are receiving more and more attention and application. Top patch is an important component of lithium batteries. It is a layer of insulating material placed on the top of lithium batteries, which effectively improves the quality and appearance of lithium batteries. How to efficiently prepare patches during the production process is a technical problem.

[0003] At present, most of the top patch mechanism processes of breading machines on the market adopt the process of preparing the patch at the bottom of the material trough → transferring to pick up → correcting the top patch → picking up the patch by the robot to realize the patch process of the battery cell. The top patch is placed in the material trough manually, and the bottom of the material trough is supported by a thin iron sheet to prevent the top patch from falling. After the material is discharged, the preparation sheet translation cylinder retracts, and the lifting cylinder extends to suck the top patch by vacuum suction. The preparation sheet lifting cylinder retracts, and the translation cylinder extends to wait for the transfer to pick up the patch. Then the transfer translation cylinder retracts, and the lifting cylinder extends to suck the top patch again by vacuum suction. After the patch is picked up, the transfer lifting cylinder retracts, and the translation cylinder extends to reach the correction position. The transfer lifting cylinder extends to place the top patch at the correction position and then retracts. After the correction cylinder corrects the top patch, the robot picks up the patch for patching. It can be seen that the existing coating machines have the following problems: (1) There are too many mechanical structures, resulting in a large space occupied by the equipment. During the production process of the production line, the equipment failure rate and maintenance costs increase sharply, reducing production efficiency; (2) When the top patch is changed, it is impossible to change the model and debug quickly, which increases the cost of equipment changeover; (3) The top patch is supported by a thin iron sheet at the bottom of the material trough. Adding too many top patches can easily cause the top patch to fall off or the supported part of the top patch to deform; (4) The top patch is supported by a thin iron sheet at the bottom of the material trough. When the spare sheet lifting cylinder is extended, the spare sheet platform will first touch the thin iron sheet, and then suck the top patch through vacuum suction. The thin iron sheet needs to be replaced and the spare sheet platform needs to be maintained regularly; (5) The bottom spare sheet mechanism and the transfer mechanism need to be connected to vacuum negative pressure to absorb the top patch, which consumes the vacuum negative pressure resources of the equipment.

[0004] Therefore, there is an urgent need for a spare film system that can adapt to different types of top patches, can automatically perform horizontal correction on the top patches, simplify the mechanical structure of the equipment, reduce equipment costs, and improve productivity. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide a battery cell coating top patch preparation system and a coating machine, and a patch method, which are used to solve the problems that the existing coating machines cannot adapt to different types of top patches when preparing patches, require too much mechanical equipment to perform horizontal correction on the top patches, have complex mechanical structures, high equipment manufacturing and maintenance costs, and low productivity.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a top patch preparation system for a battery cell film, which is characterized by comprising a top patch storage mechanism and an automatic top patch ejection mechanism, a horizontal self-correction mechanism, a detection mechanism, and a controller arranged on the top patch storage mechanism, wherein the top patch storage mechanism comprises a base and legs providing support for the base, the base has a top-opening retrieval slot for storing top patches; the automatic top patch ejection mechanism comprises a rectangular loading plate and a jacking drive device; the loading plate can be movably arranged in the retrieval slot The jacking drive device is installed at the bottom of the base, and the jacking end of the jacking drive device is connected to the loading plate, which is used to drive the loading plate to always rise and fall in a horizontal posture in the film taking slot; the horizontal self-correction mechanism includes at least one set of lateral correction units and / or longitudinal correction units, which are used to correct the horizontal position of the top patch placed in the film taking slot; the detection mechanism is arranged on the base, which is used to detect whether there is a top patch at the film taking port; the controller is connected to the jacking drive device and the detection mechanism.

[0007] Preferably, the base includes a horizontal rectangular frame and a semi-enclosed enclosure arranged along the circumference of the rectangular frame, and legs are fixed to the bottom of the rectangular frame; the semi-enclosed enclosure includes a vertical baffle and a vertical end plate perpendicular to the rectangular frame; two vertical baffles are arranged at intervals on each long frame side of the rectangular frame along the length direction of the base, and the two vertical baffles arranged opposite to each other in the width direction of the base form a group; the vertical end plate is arranged at the right end of the rectangular frame.

[0008] Preferably, the transverse correction unit is arranged in the film taking slot, and includes a right-angle correction clamp and a transverse correction clamp which can be opened and closed along the width direction of the base, the right-angle correction clamp includes a fixed right-angle clamp body and a movable right-angle clamp body which are relatively arranged in the width direction of the base, the fixed right-angle clamp body is fixed to the inner wall of a vertical baffle plate on the left side of the base, the movable right-angle clamp body is connected to another vertical baffle plate on the left side of the base through a transverse elastic adjustment part, and the movable right-angle clamp body moves along the width direction of the base under the drive of the transverse elastic adjustment part to realize the opening and closing of the right-angle correction clamp; the transverse positioning clamp includes a fixed correction plate and a movable correction plate which are relatively arranged in the width direction of the base, the fixed correction plate is fixed to the inner wall of a vertical baffle plate on the right side of the base, the movable correction plate is connected to another vertical baffle plate on the right side of the base through several sets of transverse elastic adjustment parts, and the movable correction plate moves along the width direction of the base under the action of the transverse elastic adjustment part to realize correction in the width direction of the top patch.

[0009] Preferably, the fixed right-angle clamp body and the movable right-angle clamp body are both L-shaped right-angle strips perpendicular to the loading plate, and the L-shaped right-angle strips are provided with adjacent first positioning surfaces and second positioning surfaces which are arranged perpendicular to each other, and the first positioning surface of the fixed right-angle clamp body and the first positioning surface of the movable right-angle clamp body are arranged relative to each other in the width direction of the base, and the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body are located in the same vertical plane, and the right angle formed by the first positioning surface and the second positioning surface clamps the top angle on the left side of the loading plate.

[0010] More preferably, at least one vertical baffle plate in each group of the vertical baffle plates is provided with at least one set of transverse elastic adjustment parts, and the transverse elastic adjustment parts include coaxially arranged transverse linear rods, transverse linear bearings, and a first spring, and the transverse linear bearings are installed on the vertical baffle plates; the transverse linear rods can be slidably inserted into the transverse linear bearings, and the outer ends of the transverse linear rods are provided with a first limit joint, and the inner ends of each of the transverse linear rods are connected to the movable right-angle clamp body or the movable correction plate through the first spring.

[0011] Preferably, the longitudinal correction unit includes a longitudinal push plate perpendicular to the loading plate, the longitudinal push plate is connected to the vertical end plate through several sets of longitudinal elastic adjustment parts, the longitudinal push plate is arranged opposite to the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body and is abutted against the right end of the loading plate, and the longitudinal push plate moves along the length direction of the base under the action of the longitudinal elastic adjustment part to complete the correction of the top patch in the length direction.

[0012] More preferably, at least one set of longitudinal elastic adjustment parts is provided on the vertical end plate, and the longitudinal elastic adjustment part includes a coaxially arranged longitudinal linear rod, a longitudinal linear bearing, and a second spring, and the longitudinal linear bearing is installed on the vertical end plate; the longitudinal linear rod can be slidably inserted into the longitudinal linear bearing, and the outer end of the longitudinal linear rod is provided with a second limit joint, and the inner end of the longitudinal linear rod is connected to the longitudinal push plate through the second spring.

[0013] Preferably, the lifting drive device includes a cylinder fixing plate and a lifting cylinder arranged on the cylinder fixing plate, the lifting cylinder is vertically installed at the central position of the rectangular frame through the cylinder fixing plate, and the output end of the lifting cylinder is connected to the loading plate.

[0014] Preferably, the detection mechanism comprises a photoelectric sensor and a photoelectric fixing bar, the photoelectric sensor is mounted on the photoelectric fixing bar, and the photoelectric fixing bar is mounted at the top opening of the base.

[0015] Preferably, the cell film top patch preparation system also includes a control system, the signal input end of the control system is connected to the photoelectric sensor, and the signal output end of the control system is connected to the lifting cylinder through a solenoid valve to control the action of the lifting cylinder. The overall automation level of the cell film top patch preparation system is high, which is conducive to improving production efficiency.

[0016] The utility model also provides a coating machine, which is characterized by comprising the battery core coating top patch preparation system.

[0017] The utility model also provides a patch method of a film coating machine, which is characterized by comprising the following steps:

[0018] Stacking a plurality of top patches in the film taking slot of the top patch storage mechanism;

[0019] The photoelectric sensor detects in real time whether there is a top patch at the notch of the film taking slot, and transmits the detection signal to the control system;

[0020] The control system judges the received detection signal. If it is judged that there is no top patch at the notch of the film taking slot, the control system sends an action instruction to the lifting cylinder, and the lifting cylinder drives the loading plate and the top patch to rise in a horizontal posture; during the rising process of the top patch, the lateral correction unit and / or the longitudinal correction unit corrects the horizontal position of the top patch; if it is judged that there is a top patch at the notch of the film taking slot, the control system controls the lifting cylinder to stop working through the electromagnetic valve, at which time the topmost top patch moves to the notch of the film taking slot, and the preparation of the film is completed;

[0021] The control system sends a chip removal instruction to the robot, and the robot moves to the slot of the chip removal slot, removes the top chip on the top layer in the chip removal slot, and then moves it to the battery cell to be attached with the chip.

[0022] The utility model provides a structural device for preparing the top patch of the battery cell package. The operation process is that the cylinder lifts and pushes the top patch to contact the platform so that the top patch moves to the top of the material trough. The top patch is corrected by the spring force during the pushing process, which will not cause the top patch to deviate. When the top patch contacts the top detection photoelectric, the external pressure-maintaining valve of the cylinder cuts off the air and maintains the pressure, so that the top patch stays at the photoelectric detection position, and then the robot arm takes the material.

[0023] The beneficial effects of the utility model are as follows: the film preparation system combines the functions of film preparation mechanism, transfer mechanism and correction mechanism, simplifies the mechanical structure, saves equipment space resources, reduces equipment manufacturing cost, maintenance cost and failure rate, and improves production efficiency; the horizontal self-correction mechanism adopts a spring structure, which is highly compatible with the length and width of the top patch, and can perform horizontal position correction on top patches of different models and sizes, which is quick and convenient; when too many top patches are added, the top patches will not fall off or the supported parts will not be deformed; there is no need to consume the vacuum negative pressure resources of the equipment; the robot can directly take the film without going through the film preparation → transfer → correction process, and the film preparation can be completed in one step, which can significantly improve the production efficiency of the production line and reduce the production cost of the production line; the equipment structure and process are simple, which is convenient for operators to install, disassemble and debug. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Shown is one of the structural diagrams of the utility model.

[0025] Figure 2 Shown is the second structural diagram of the present utility model.

[0026] Figure 3 Shown is the front view of the present utility model.

[0027] Figure 4 Shown is a rear view of the present invention.

[0028] Figure 5 Shown is a top view of the present invention.

[0029] Figure 6 Shown is a bottom view of the present invention.

[0030] Figure 7 Shown is a left side view of the present invention.

[0031] Figure 8 Shown is a right side view of the present invention.

[0032] Fig. 9 Shown is a structural diagram of the top patch storage mechanism of the present utility model.

[0033] Fig.10 Shown is a structural diagram of the longitudinal elastic adjustment portion of the utility model.

[0034] Fig.11 Shown is an exploded view of the longitudinal elastic adjustment portion of the present invention.

[0035] Fig.12 Shown is an exploded view of the present invention.

[0036] Fig.13 It is a schematic diagram showing the top patch being placed in the film taking slot of the utility model.

[0037] Fig.14 It is a schematic diagram showing that the top patch placed in the film taking slot of the present invention is lifted up.

[0038] Fig.15 Displayed is a control flow chart of the utility model.

[0039] In the attached drawings, 1, top patch storage mechanism; 11, base; 111, rectangular frame; 112, vertical baffle; 113, vertical end plate; 12, leg; 121, mounting hole; 2, top patch automatic ejection mechanism; 21, loading plate; 22, jacking drive device; 221, cylinder fixing plate; 222, jacking cylinder; 223, cylinder fixing nut; 3, horizontal self-correction mechanism; 31, lateral correction unit; 311, right-angle correction fixture; 3111, fixed right-angle clamp body; 3112, movable right-angle clamp body; 312, lateral correction fixture; 3121, fixed correction plate; 3 122. Movable correction plate; 313. Transverse elastic adjustment part; 3131. Transverse linear rod; 3132. Transverse linear bearing; 3133. First spring; 3134. First limit joint; 3135. First fixing nut; 32. Longitudinal correction unit; 321. Longitudinal push plate; 322. Longitudinal elastic adjustment part; 3221. Longitudinal linear rod; 3222. Longitudinal linear bearing; 3223. Second spring; 3224. Second limit joint; 3225. Second fixing nut; 4. Detection mechanism; 41. Photoelectric sensor; 42. Photoelectric fixing strip; 5. Top patch. DETAILED DESCRIPTION

[0040] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.

[0041] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0042] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.

[0043] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0044] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0047] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.

[0048] The utility model provides a top patch preparation system for a battery core film, comprising a top patch storage mechanism 1, an automatic top patch ejection mechanism 2, a horizontal self-correction mechanism 3, a detection mechanism 4, and a controller, the top patch storage mechanism 1 comprising a base 11 and legs 12 for supporting the base, the base 11 having a top-opening retrieval slot for storing a top patch 5; the automatic top patch ejection mechanism 2 comprising a rectangular loading plate 21 and a jacking drive device 22; the loading plate 21 can be movably arranged in the retrieval slot for supporting the top patch 5 And drive the top patch to move up and down; the lifting drive device 22 is installed at the bottom of the base 11, and the lifting end of the lifting drive device 22 is connected to the loading plate 21, which is used to drive the loading plate to always move up and down in a horizontal posture in the film taking slot; the horizontal self-correction mechanism 3 includes at least one set of horizontal correction units 31 and / or longitudinal correction units 32, which are used to correct the horizontal position of the top patch placed in the film taking slot; the detection mechanism 4 is arranged on the base 11, and is used to detect whether there is a top patch at the film taking port; the controller is connected to the lifting drive device and the detection mechanism.

[0049] In some embodiments of the utility model, the base 11 includes a horizontal rectangular frame 111 and a semi-enclosed enclosure arranged along the circumference of the rectangular frame, and the bottom of the rectangular frame 111 is fixed with a support leg 12; the semi-enclosed enclosure includes a vertical baffle 112 and a vertical end plate 113 perpendicular to the rectangular frame; two vertical baffles 112 are arranged at intervals on each long frame side of the rectangular frame 111 along the length direction of the base, and the two vertical baffles 112 arranged opposite to each other in the width direction of the base 11 are a group; the vertical end plate 113 is arranged at the right end of the rectangular frame 111.

[0050] In some embodiments of the utility model, the legs 12 are U-shaped, and the two legs are symmetrically mounted at the bottom of the base to provide support for the base. The bottom of the legs 12 is provided with a plurality of mounting holes 121 to facilitate fixing the entire top patch storage mechanism 1 on the film packaging machine.

[0051] In some embodiments of the utility model, the lateral correction unit 31 is arranged in the film taking slot, and includes a right-angle correction clamp 311 and a lateral correction clamp 312 that can be opened and closed along the width direction of the base. The right-angle correction clamp 311 includes a fixed right-angle clamp body 3111 and a movable right-angle clamp body 3112 that are relatively arranged in the width direction of the base. The fixed right-angle clamp body 3111 is fixed to the inner wall of a vertical baffle on the left side of the base 11, and the movable right-angle clamp body 3112 is connected to another vertical baffle on the left side of the base 11 through a lateral elastic adjustment part 313. The movable right-angle clamp body 311 The lateral positioning fixture 312 includes a fixed correction plate 3121 and a movable correction plate 3122 which are arranged opposite to each other in the width direction of the base. The fixed correction plate 3121 is fixed to the inner wall of a vertical baffle on the right side of the base 11. The movable correction plate 3122 is connected to another vertical baffle on the right side of the base through several sets of lateral elastic adjustment parts 313. The movable correction plate 3122 moves along the width direction of the base under the action of the lateral elastic adjustment parts 313 to realize the correction in the width direction of the top patch.

[0052] In some embodiments of the utility model, the vertical baffle is L-shaped, and a side opening is formed between two vertical baffles on the same long frame side, which is convenient for taking and placing the top patch in the film taking slot, and also convenient for the robot to directly grab the top patch.

[0053] In some embodiments of the utility model, the fixed right-angle clamp body 3111 and the movable right-angle clamp body 3112 are both L-shaped right-angle strips perpendicular to the loading plate 21, and the L-shaped right-angle strips are provided with adjacent first positioning surfaces and second positioning surfaces that are arranged perpendicular to each other. The first positioning surface of the fixed right-angle clamp body and the first positioning surface of the movable right-angle clamp body are arranged relative to each other in the width direction of the base, and the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body are located in the same vertical plane, and the right angle formed by the first positioning surface and the second positioning surface clamps the top angle on the left side of the loading plate.

[0054] In some embodiments of the utility model, the fixed right-angle clamp body 3111 and the fixed correction plate 3121 are arranged on two vertical baffles on the same long frame side, and the first positioning surface of the fixed right-angle clamp body 3111 and the inner surface of the fixed correction plate 3121 are kept in the same perpendicular plane; the movable right-angle clamp body 3112 and the movable correction plate 3122 are respectively located on the opposite sides of the fixed right-angle clamp body 3111 and the fixed correction plate 3121, and the top patch placed in the film taking slot is clamped by the right-angle correction clamp 311 and the lateral correction clamp 312 at the same time, so that the top patch is corrected in the width direction.

[0055] In some embodiments of the utility model, several sets of transverse elastic adjustment parts 313 are arranged on one of the vertical baffles in each group of the vertical baffles, and the transverse elastic adjustment part 313 includes a coaxially arranged transverse linear rod 3131, a transverse linear bearing 3132, and a first spring 3133, and the transverse linear bearing 3132 is installed on the vertical baffle; the transverse linear rod 3131 can be slidably inserted into the transverse linear bearing 3132, and the outer end of the transverse linear rod 3131 is configured with a first limit joint 3134, and the inner end of each of the transverse linear rods 3131 is connected to the movable right-angle clamp body or the movable correction plate through the first spring 3133.

[0056] In some embodiments of the utility model, the outer end of the transverse linear rod 3131 is provided with an external thread, and the first limit joint 3134 is sleeved on the outer end of the transverse linear rod 3131 and is threadedly connected through the first fixing nut 3135 to limit the first limit joint 3134 from coming out of the transverse linear rod 3131. Before use, the position of the first limit joint 3134 in the axial direction of the transverse linear rod 3131 can be adjusted according to the size of the top patch to be corrected, so as to adapt to the correction of top patches of different sizes.

[0057] In some embodiments of the utility model, the longitudinal correction unit 32 includes a longitudinal push plate 321 perpendicular to the loading plate, and the longitudinal push plate is connected to the vertical end plate 113 through several sets of longitudinal elastic adjustment parts 322. The longitudinal push plate 321 is arranged opposite to the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body and is abutted against the right end of the loading plate. Under the action of the longitudinal elastic adjustment part 322, the longitudinal push plate 321 moves along the length direction of the base to complete the correction of the top patch 5 in the length direction.

[0058] In some embodiments of the present invention, a clamping channel for clamping the end of the top patch is reserved between the second positioning surface of the fixed right-angle clamp body 3111 and the second positioning surface of the movable right-angle clamp body 3112.

[0059] In some embodiments of the utility model, the vertical end plate 113 is provided with several sets of longitudinal elastic adjustment parts 322, and the longitudinal elastic adjustment parts 322 include coaxially arranged longitudinal linear rods 3221, longitudinal linear bearings 3222, and second springs 3223. The longitudinal linear bearings 3222 are installed on the vertical end plate 113; the longitudinal linear rods 3221 are slidably inserted into the longitudinal linear bearings 3222, and the outer ends of the longitudinal linear rods 3221 are provided with second limit joints 3224, and the inner ends of the longitudinal linear rods 3221 are connected to the longitudinal push plates 3221 through second springs 3223. The opening and closing of the right-angle correction fixture 311 and the transverse correction fixture 312 are controlled by the transverse elastic adjustment parts 313, and the movement of the longitudinal correction unit 32 is controlled by the longitudinal elastic adjustment parts 322. The top patch 5 stacked together is horizontally placed on the loading plate 21 of the film taking slot, and the left end of the top patch 5 is inserted into the clamping channel. At the same time, the fixed right-angle clamp body 3111 and the movable right-angle clamp body 3112 respectively clamp the two top corners of the left end of the top patch, and at the same time, the longitudinal push plate 321 cooperates with the fixed right-angle clamp body 3111 and the movable right-angle clamp body 3112 to clamp at both ends of the length direction of the top patch, thereby realizing the correction of the width and length direction of the top patch. When it is necessary to prepare the top patches of different models, the size of the loading plate can be changed according to the size of the top patch, which is convenient and fast, and realizes the rapid change of correction. The structural device is designed according to the length and width of the top patch. If the top patch is 350mm long and 150mm wide, it can be directly compatible with the top patch with a length range of 350±50mm and a width range of 150±20mm. If the adjustment range is lower than or exceeds this range, the loading plate can be directly replaced when changing the model.

[0060] In some embodiments of the utility model, the outer end of the longitudinal linear rod 3221 is provided with an external thread, and the second limit joint 3224 is sleeved on the outer end of the longitudinal linear rod 3221 and is threadedly connected through the second fixing nut 3225 to limit the second limit joint 3224 from coming out of the transverse linear rod 3131. Before use, the position of the second limit joint 3224 in the axial direction of the longitudinal linear rod 3221 can be adjusted according to the size of the top patch to be corrected, so as to adapt to the correction of top patches of different sizes.

[0061] In some embodiments of the utility model, the lifting drive device 22 includes a cylinder fixing plate 221 and a lifting cylinder 222 arranged on the cylinder fixing plate, and the lifting cylinder 222 is vertically installed at the central position of the rectangular frame 111 through the cylinder fixing plate 221 and the cylinder fixing nut 223, and the output end of the lifting cylinder 222 is connected to the loading plate 21. The lifting cylinder 222 is connected to an external air source, and after inflation, the piston rod of the lifting cylinder 222 moves upward as the output end, driving the loading plate and the top patch to move upward together. During the rising process of the top patch, the lateral correction unit 31 and the longitudinal correction unit 32 can correct the horizontal position of the top patch 5. The lifting drive device described in the present application is not limited to the above structure, and can also be a motor or a combination of a motor and a transmission structure such as a motor plus a screw and other driving methods, which can be set according to actual needs.

[0062] In some embodiments of the present invention, the detection mechanism 4 includes a photoelectric sensor 41 and a photoelectric fixing bar 42 . The photoelectric sensor 41 is mounted on the photoelectric fixing bar 42 . The photoelectric fixing bar 42 is mounted at the top opening of the base 11 .

[0063] In some embodiments of the utility model, the battery cell film top patch preparation system further includes a control system, the signal input end of the control system is connected to the photoelectric sensor 41, and the signal output end of the control system is communicatively connected to the lifting cylinder 222 through a solenoid valve to control the action of the lifting cylinder 222. The control system can be independently set or integrated in the film coating machine, and the overall automation degree of the battery cell film top patch preparation system is high, which is conducive to improving production efficiency.

[0064] The utility model also provides a coating machine, comprising the battery core coating top patch preparation system.

[0065] The utility model also provides a patch method of a film coating machine, comprising the following steps:

[0066] S1 stacks a plurality of top patches in a top patch storage mechanism taking-out slot;

[0067] The S2 photoelectric sensor detects in real time whether there is a top patch at the notch of the film taking slot and transmits the detection signal to the control system;

[0068] The S3 control system judges the received detection signal. If it is judged that there is no top patch at the notch of the film taking slot, the control system sends an action command to the lifting cylinder, and the lifting cylinder drives the loading plate and the top patch to rise in a horizontal posture; during the rising process of the top patch, the lateral correction unit and / or the longitudinal correction unit corrects the horizontal position of the top patch; if it is judged that there is a top patch at the notch of the film taking slot, the control system controls the lifting cylinder to stop working through the electromagnetic valve, at which time the topmost top patch moves to the notch of the film taking slot, and the preparation of the film is completed;

[0069] The S4 control system sends a chip-taking instruction to the robot, and the robot moves to the slot of the chip-taking slot, takes the top chip on the top layer in the chip-taking slot, and moves it to the battery cell to be attached with the chip.

[0070] During the film picking and preparation process, the robot directly picks up the film from above the film picking slot. After picking up the film, the photoelectric sensor 41 re-detects whether there is a top film at the slot of the film picking slot, and repeats step S3 until all the films are picked up.

[0071] The above examples are intended to illustrate the embodiments disclosed in the present utility model and should not be construed as limitations on the present utility model. In addition, the various modifications listed herein and the changes in the methods and compositions in the utility model are obvious to those skilled in the art without departing from the scope and spirit of the present utility model. Although the present utility model has been specifically described in conjunction with a variety of specific preferred embodiments of the present utility model, it should be understood that the present utility model should not be limited to these specific embodiments. In fact, various modifications as described above that are obvious to those skilled in the art to obtain the utility model should be included in the scope of the present utility model.

Claims

1. A battery cell film top patch preparation system, characterized by: It includes a top patch storage mechanism and an automatic top patch ejection mechanism, a horizontal self-correction mechanism, a detection mechanism, and a controller arranged on the top patch storage mechanism. The top patch storage mechanism includes a base and a support leg for providing support for the base, and the base has a film taking slot with an open top for storing top patches; the automatic top patch ejection mechanism includes a rectangular loading plate and a lifting drive device; the loading plate can be movably arranged in the film taking slot to support the top patch and drive the top patch to rise and fall; the lifting drive device is installed at the bottom of the base, and the lifting end of the lifting drive device is connected to the loading plate to drive the loading plate to always rise and fall in a horizontal posture in the film taking slot; the horizontal self-correction mechanism includes at least one set of lateral correction units and / or longitudinal correction units, which are used to correct the horizontal position of the top patch placed in the film taking slot; the detection mechanism is arranged on the base to detect whether there is a top patch at the film taking port; the controller is connected to the lifting drive device and the detection mechanism.

2. A battery cell film top patch preparation system according to claim 1, characterized in that: The base includes a horizontal rectangular frame and a semi-enclosed enclosure arranged along the circumference of the rectangular frame, and legs are fixed to the bottom of the rectangular frame; the semi-enclosed enclosure includes a vertical baffle and a vertical end plate perpendicular to the rectangular frame; two vertical baffles are arranged at intervals on each long frame side of the rectangular frame along the length direction of the base, and the two vertical baffles arranged opposite to each other in the width direction of the base form a group; the vertical end plate is arranged at the right end of the rectangular frame.

3. A battery cell film top patch preparation system according to claim 2, characterized in that: The lateral correction unit is arranged in the film taking slot, and includes a right-angle correction clamp and a lateral correction clamp that can be opened and closed along the width direction of the base, the right-angle correction clamp includes a fixed right-angle clamp body and a movable right-angle clamp body that are relatively arranged in the width direction of the base, the fixed right-angle clamp body is fixed to the inner wall of a vertical baffle plate on the left side of the base, the movable right-angle clamp body is connected to another vertical baffle plate on the left side of the base through a lateral elastic adjustment part, and the movable right-angle clamp body moves along the width direction of the base under the drive of the lateral elastic adjustment part to realize the opening and closing of the right-angle correction clamp; the lateral correction clamp includes a fixed correction plate and a movable correction plate that are relatively arranged in the width direction of the base, the fixed correction plate is fixed to the inner wall of a vertical baffle plate on the right side of the base, the movable correction plate is connected to another vertical baffle plate on the right side of the base through several sets of lateral elastic adjustment parts, and the movable correction plate moves along the width direction of the base under the action of the lateral elastic adjustment part to realize correction in the width direction of the top patch.

4. A battery cell film top patch preparation system according to claim 3, characterized in that: The fixed right-angle clamp body and the movable right-angle clamp body are both L-shaped right-angle strips perpendicular to the loading plate, and the L-shaped right-angle strips are provided with adjacent first positioning surfaces and second positioning surfaces that are perpendicular to each other. The first positioning surface of the fixed right-angle clamp body and the first positioning surface of the movable right-angle clamp body are arranged relative to each other in the width direction of the base, and the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body are located in the same vertical plane, and the right angle formed by the first positioning surface and the second positioning surface clamps the top angle on the left side of the loading plate.

5. The battery cell film top patch preparation system according to claim 3, characterized in that: At least one vertical baffle plate in each group of the vertical baffle plates is provided with a transverse elastic adjustment part, and the transverse elastic adjustment part includes a coaxially arranged transverse linear rod, a transverse linear bearing, and a first spring. Linear bearings are installed on the vertical baffle plates and the vertical end plates; the transverse linear rod can be slidably inserted into the transverse linear bearing, and the outer end of the transverse linear rod is provided with a first limit joint, and the inner end of each of the transverse linear rods is connected to the movable right-angle clamp body or the movable correction plate through a first spring.

6. A battery cell film top patch preparation system according to claim 1, characterized in that: The longitudinal correction unit includes a longitudinal push plate perpendicular to the loading plate, and the longitudinal push plate is connected to the vertical end plate through several sets of longitudinal elastic adjustment parts. The longitudinal push plate is arranged opposite to the second positioning surface of the fixed right-angle clamp body and the second positioning surface of the movable right-angle clamp body and is abutted against the right end of the loading plate. Under the action of the longitudinal elastic adjustment part, the longitudinal push plate moves along the length direction of the base to complete the correction of the top patch in the length direction.

7. A battery cell film top patch preparation system according to claim 2, characterized in that: The lifting drive device includes a cylinder fixing plate and a lifting cylinder arranged on the cylinder fixing plate. The lifting cylinder is vertically installed at the central position of the rectangular frame through the cylinder fixing plate, and the output end of the lifting cylinder is connected to the loading plate.

8. The battery cell film top patch preparation system according to claim 1, characterized in that: The detection mechanism comprises a photoelectric sensor and a photoelectric fixing bar, the photoelectric sensor is mounted on the photoelectric fixing bar, and the photoelectric fixing bar is mounted at the top opening of the base.

9. A film coating machine, characterized in that: It comprises a battery cell film top patch preparation system as described in any one of claims 1 to 8.

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