Pole piece cutting and powder scraping mechanism of symmetrical battery assembly equipment

Abstract

The utility model discloses a pole piece cutting and powder scraping mechanism of symmetrical battery assembling equipment, which can realize automatic cutting and powder scraping of pole pieces, is suitable for semi-automatic or full-automatic assembling equipment of symmetrical batteries, and can reduce the manual participation degree and improve the battery assembling efficiency to be consistent with finished products in the same batch. The pole piece cutting and powder scraping mechanism of the symmetrical battery assembly equipment comprises a conveying device and a pole piece processing device, the conveying device is used for conveying the charging tray with the pole piece to the pole piece processing device positioned at the processing station; the processing device comprises a pole piece processing support located at a processing station and a laser which is installed on the pole piece processing support and used for outputting high-power laser to achieve cutting and regional powder scraping on the pole piece.

Description

TECHNICAL FIELD

[0001] The utility model belongs to symmetrical battery technical field, especially point to symmetrical battery assembly equipment's pole piece cutting powder scraping mechanism. BACKGROUND

[0002] Symmetrical battery is composed of two same working electrodes, is a simplified electrochemical system, is especially applicable to carrying out electrochemical analysis and attenuation diagnosis, has superior advantage in the evaluation of some key electrode performance, such as reversibility and ion / electron transport kinetics. This battery configuration is essential for obtaining the electrochemical characteristics of the electrode, which helps to verify the potential of the electrode in the actual battery and provides useful feedback for further modification. How to correctly obtain accurate information about electrode characteristics and electrode degradation from symmetrical battery is crucial for accelerating the progress of battery revolution.

[0003] At present, symmetrical battery is difficult to make, time-consuming, especially manual powder scraping requires strict operation method, and the labor intensity is large. And, the assembly of symmetrical battery can only be carried out manually in the glove box, the battery assembly efficiency is low, and the consistency of finished products cannot be guaranteed, which has a great influence on data research. Specifically, in the prior art, the pole piece is placed on the corresponding tool for fixation by manual operation, and then cutting and powder scraping are carried out using corresponding tools. The processing quality depends on the experience and skill of workers, resulting in large fluctuations and instability of processing quality, and continuous production cannot be realized. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of pole piece cutting powder scraping mechanism of symmetrical battery assembly equipment, solve the problems existing in prior art, can realize the automatic cutting and powder scraping of pole piece, suitable for semi-automatic or full-automatic assembly equipment of symmetrical battery, can reduce the degree of manual participation, improve battery assembly efficiency and the consistency of same batch finished products.

[0005] In order to achieve the above purpose, the solution of the utility model is as follows:

[0006] A kind of pole piece cutting powder scraping mechanism of symmetrical battery assembly equipment, including conveying device and pole piece processing device;The conveying device conveys the tray with pole piece to the pole piece processing device located in processing station;The processing device includes pole piece processing support located in processing station, and laser for outputting high-power laser to realize cutting and regional powder scraping of pole piece is installed on the pole piece processing support.

[0007] The pole piece processing support is a Z-axis module, the pole piece processing device comprises a laser mounting rack mounted at the output end of the pole piece processing support, a pole piece pressing plate located below the laser mounting rack, and a plurality of pressing plate buffer springs, the laser mounting rack is provided with a buffer plate, the pole piece pressing plate is provided with a plurality of movable pressing plate guide columns penetrating through the buffer plate, the pressing plate buffer springs are sleeved on the pressing plate guide columns and abut against the buffer plate and the pole piece pressing plate at two ends respectively, and the laser is mounted on the laser mounting rack and penetrates through the buffer plate and the pole piece pressing plate downwards.

[0008] Preferably, the conveying device is provided with a dust collecting box at the machining station, the dust collecting box is located below the laser, three edges of the dust collecting box are provided with baffle plates, and one edge without the baffle plate is provided for the feeding tray to enter and exit; and a hopper is arranged below the dust collecting box.

[0009] Preferably, the pole piece processing device comprises a detection support located beside the laser mounting rack, a photoelectric sensor is mounted on the detection support, and a movable baffle plate is mounted on the side wall of the laser mounting rack and penetrates through the photoelectric sensor.

[0010] The conveying device comprises a conveying X-axis module for outputting X-axis power, and a tray feeding seat driven by the conveying X-axis module to move in the X-axis direction, the tray feeding seat is provided with a tray feeding groove matched with the width of the tray.

[0011] Preferably, the Y-axis two ends of the tray feeding groove are open, and the Y-axis two sides of the tray feeding groove are provided with tray feeding pressing plates.

[0012] Preferably, the pole piece cutting and powder scraping mechanism of the symmetrical battery assembling equipment comprises an ejection device, the ejection device comprises a discharging ejection block moving in the Y-axis direction, the conveying device comprises a tray discharging seat fixed to one side of the conveying X-axis module, the tray discharging seat is located at the discharging station and is provided with a tray discharging groove matched with the width of the tray.

[0013] Preferably, the Y-axis two ends of the tray discharging groove are open, and the Y-axis two sides of the tray discharging groove are provided with tray discharging pressing plates.

[0014] Preferably, the ejection device comprises an ejection Y-axis cylinder for driving the discharging ejection block, an ejection support for fixing the ejection Y-axis cylinder, and an ejection Y-axis guide rail arranged on the ejection support and used for guiding the discharging ejection block.

[0015] After the above technical scheme is adopted, the pole piece processing support has the following technical effects:

[0016] The utility model discloses a conveying device is used to the polar piece processing device, and the polar piece processing device is used laser technology, and the high power laser is used to the polar piece cutting, area scraping powder, realizes automation, can reduce the artificial participation degree and the dependence, through the parameter setting of laser, can guarantee the same batch polar piece to have the same processing effect, keeps the consistency of processing quality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the perspective view of the embodiment of the utility model;

[0018] Figure 2 It is the top view of the embodiment of the utility model;

[0019] Figure 3 It is the polar piece conveying part perspective view of the embodiment of the utility model;

[0020] Figure 4 It is the polar piece conveying part top view of the embodiment of the utility model;

[0021] Figure 5 It is the storage device perspective view of the embodiment of the utility model;

[0022] Figure 6 It is the storage device part perspective view of the embodiment of the utility model;

[0023] Figure 7 It is the conveying device perspective view of the embodiment of the utility model;

[0024] Figure 8 It is the transfer device perspective of the embodiment of the utility model Figure 1 ;

[0025] Figure 9 It is the transfer device perspective of the embodiment of the utility model Figure 2 ;

[0026] Figure 10 It is the polar piece processing device perspective of the embodiment of the utility model Figure 1 ;

[0027] Figure 11 It is the polar piece processing device perspective of the embodiment of the utility model Figure 2 ;

[0028] Figure 12 It is the ejection device perspective of the embodiment of the utility model;

[0029] Figure 13 It is the heat-sealing liquid injection device perspective of the embodiment of the utility model;

[0030] Figure 14 The heat-sealing liquid injection device of the embodiment of the present application is shown in the front view;

[0031] Figure 15 The heat-sealing liquid injection device of the embodiment of the present application is shown in the top view;

[0032] BRIEF DESCRIPTION OF THE DRAWINGS

[0033] 1 - storage device; 11 - tray rack; 111 - tray groove; 1111 - guide slope; 12 - discharge top block; 13 - storage base; 14 - storage movable support; 15 - storage fixed support; 16 - storage Y-axis guide rail; 17 - storage Y-axis module; 18 - storage Y-axis cylinder; 19 - storage Z-axis guide rod; 110 - storage Z-axis module;

[0034] 2 - conveying device; 21 - conveying X-axis module; 22 - tray feeding seat; 221 - tray feeding groove; 222 - tray feeding pressing plate; 23 - tray discharging seat; 231 - tray discharging groove; 232 - tray discharging pressing plate; 24 - dust collection box; 25 - baffle; 26 - hopper;

[0035] 3 - pole piece processing device; 31 - pole piece processing support; 32 - laser; 33 - laser mounting bracket; 331 - buffer plate; 34 - pole piece pressing plate; 341 - pressing plate guide column; 35 - pressing plate buffer spring; 36 - detection support; 37 - photoelectric sensor; 38 - baffle;

[0036] 4 - heat-sealing liquid injection device; 41 - lifting seat; 411 - clamp; 42 - opening and closing support; 421 - accommodation groove; 43 - bottom seal head; 44 - side seal head; 45 - negative pressure suction head; 46 - liquid injection head; 47 - heat-sealing liquid injection support; 48 - heat-sealing Z-axis module; 49 - heat-sealing X-axis module; 410 - liquid injection X-axis module; 420 - waste liquid tank; 4201 - jack; 430 - code spraying gun; 440 - electrolyte container;

[0037] 5 - transfer device; 51 - transfer support; 52 - pole piece suction cup; 521 - suction cup guide column; 522 - air guide column; 53 - transfer Y-axis module; 54 - transfer Z-axis module; 55 - suction cup fixing frame; 551 - suction cup mounting plate; 56 - suction cup buffer spring;

[0038] 6 - CCD camera;

[0039] 7 - ejection device; 71 - discharging top block; 72 - ejection Y-axis cylinder; 73 - ejection support; 74 - ejection Y-axis guide rail;

[0040] 8 - code scanning gun;

[0041] a - tray; b - touch screen. DETAILED DESCRIPTION

[0042] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0043] Reference Figures 1-15 As shown in the utility model discloses a kind of symmetrical battery semi-automatic assembly equipment, the assembly equipment mainly includes pole piece conveying part and battery assembly part, the former can execute pole piece in batch storage, output pole piece and carry out CCD detection (conveniently traceable) and (adopt laser) to pole piece Cut powder and the like action, the latter can execute the semi-finished product of symmetrical battery Heat sealing, liquid injection and the like action, in addition, pole piece is stored into pole piece conveying part, after pole piece completes cutting powder, it is inserted into the Pock bag (including aluminum plastic film, limited diaphragm and the aluminum foil with tab etc.) of symmetrical battery and the like action is executed by artificial, so the equipment is a kind of semi-automatic battery assembly equipment;Specifically, the assembly equipment includes storage device 1, conveying device 2, traceable mechanism, pole piece processing device 3 and heat sealing liquid injection device 4;

[0044] Tray a with (unprocessed) pole piece is inserted into the array of storage device 1 by artificial to realize batch storage, i.e.

[0045] When working, storage device 1 transfers tray a to conveying device 2 one by one, and conveying device 2 transfers tray a output by storage device 1 to detection station, processing station and discharging station;

[0046] Traceable mechanism is located on detection station, and it includes transfer device 5 and CCD camera 6, and transfer device 5 transfers pole piece on tray a at detection station to CCD camera 6, and CCD camera 6 performs real-time surface quality detection and code scanning traceability on pole piece;

[0047] Pole piece processing device 3 is located on processing station, and laser technology is used to cut (generally, original pole piece sheet is divided into two) and area powder scraping on pole piece;

[0048] After cutting and powder scraping, conveying device 2 moves tray a to detection station for detection, and then moves to discharging station, and tray a is taken by artificial and pole piece on it is inserted into the Pock bag of symmetrical battery to assemble into semi-finished product of symmetrical battery, and then the semi-finished product is placed into heat sealing liquid injection device 4;

[0049] Heat sealing liquid injection device 4 performs battery edge heat sealing and electrolyte injection on semi-finished product to assemble into finished product of symmetrical battery, and finished product is taken from heat sealing liquid injection device 4 by artificial.

[0050] Through the above scheme, the utility model discloses can complete the assembly of symmetrical battery through the semi -automatic mode, only by manual execution pole piece feeding, pole piece unloading, semi -finished product assembly, finished product unloading etc. Action, the operation precision requirement of this kind of action is lower, will not influence the quality and consistency of finished product, reduces the manual participation degree to a certain extent, is favorable to improve battery assembly efficiency and the consistency of same batch finished product, secondly, the utility model discloses through the semi -automatic mode, reserve certain manual participation degree, can rely on the experience, operation and traceability mechanism cooperation to realize the control of part process in the battery assembly process, especially if the quality is unqualified after pole piece unloading can timely remove waste product to avoid flowing into the subsequent process, avoid waste product output and resource waste, furthermore, the utility model discloses at least twice detection of pole piece in the battery assembly process through CCD camera 6, so that pole piece can be traced before and after treatment, and the quality of pole piece before battery assembly is guaranteed.

[0051] The following shows the specific embodiments of the utility model.

[0052] In the embodiment, the pole piece conveying part is composed of the storage device 1, the conveying device 2, the traceability mechanism and the pole piece processing device 3, and the battery assembly part is composed of the hot sealing liquid injection device 4. In other embodiments, the devices in the utility model can be combined according to the connection order of processes to form mechanisms that have part of the functions of the assembly equipment of the utility model, for example, the storage device 1 and the conveying device 2 can be combined to form a pole piece feeding mechanism for performing pole piece storage and conveying and other storage and feeding actions of other battery assembly equipment, and the conveying device 2 and the pole piece processing device 3 can be combined to form a pole piece cutting and powder scraping mechanism for performing pole piece cutting and powder scraping actions of other battery assembly equipment.

[0053] Referring to Figure 1 , the vertical direction is defined as the Z axis, the horizontal conveying direction of the conveying device 2 is defined as the X axis, and the horizontal direction perpendicular to the X axis is defined as the Y axis. In the embodiment, the processing station and the unloading station are located at the two ends of the conveying device 2, the detection station is located between the processing station and the unloading station, the storage device 1 is located between the unloading station and the detection station, and the hot sealing liquid injection device 4 is located beside the end of the conveying device 2 close to the unloading station. In this way, the material disc a is driven by the conveying device 2 to move back and forth in the conveying direction, so that the devices of the assembly equipment of the utility model are designed more compactly to reduce the equipment volume and floor area, and the unloading station is closer to the hot sealing liquid injection device 4, which facilitates manual execution of corresponding actions without moving the body and improves convenience. In the embodiment, the touch screen b for numerical control of the assembly equipment is installed on the conveying device 2 or a support thereof, which can be close to the seat of the worker for easy operation.

[0054] Referring to Figures 5-6 , the storage device 1 of the utility model is as follows:

[0055] The above-mentioned storage device 1 comprises a tray rack 11 capable of moving along the Y-axis and the Z-axis, and a discharge top block 12 capable of moving along the Y-axis; the tray rack 11 is provided with at least one row of a plurality of tray slots 111 along the Z-axis direction, the gap between the upper and lower walls of the tray slot 11 matches the thickness of the tray a so that each tray slot 11 can accommodate one tray a; the discharge top block 12 is opposite to one tray slot 111 of the tray rack 11 along the Z-axis movement, and the corresponding tray a is ejected by the Y-axis movement of the discharge top block 12 to move to the conveying device 2, that is, the discharge top block 12 is at the same height as the conveying surface of the conveying device 2.

[0056] In some embodiments of the storage device 1, the upper and lower walls of the above-mentioned tray slot 111 are provided with guide inclined surfaces 1111, so that the outer opening of the tray slot 111 presents an outwardly expanding trumpet mouth, thereby realizing the guidance when manually inserting the tray a, and facilitating the manual rapid insertion of the tray a.

[0057] In some embodiments of the storage device 1, the above-mentioned storage device 1 comprises a storage base 13, a storage movable support 14 and a storage fixed support 15; the storage base 13 is a fixed part and is relatively fixed with the rack part of the assembly equipment; the storage movable support 14 is slidably fitted on the storage base 13 along the Y-axis; the storage fixed support 15 is relatively fixed with the storage base 13 and movably penetrates the storage movable support 14, avoiding interfering with the Y-axis movement of the storage movable support 14; the tray rack 11 is slidably fitted on the storage movable support 14 along the Z-axis, thereby realizing the Y-axis and Z-axis movement relative to the storage base 13; the discharge top block 12 is slidably fitted on the storage fixed support 15 along the Y-axis, thereby realizing the height fixation relative to the storage base 13 along the Z-axis and the Y-axis movement relative to the storage base 13.

[0058] Preferably, the above-mentioned storage base 13 is provided with a storage Y-axis guide rail 16 for guiding the storage movable support 14, and a storage Y-axis module 17 for driving the storage movable support 14. In this embodiment, the two sides of the storage base 13 are provided with the storage Y-axis guide rail 16, that is, the storage Y-axis guide rails 16 are arranged in pairs, and the storage Y-axis module 17 is located between the pair of storage Y-axis guide rails 16, so that the Y-axis movement of the storage movable support 14 is more stable and less likely to shake; the storage Y-axis module 17 is a machine that outputs power through a lead screw.

[0059] Preferably, the above-mentioned storage fixed support 15 is provided with a storage Y-axis pneumatic cylinder 18, and the discharge top block 12 is installed at the output end of the storage Y-axis pneumatic cylinder 18 to realize the Y-axis movement. Of course, the storage Y-axis pneumatic cylinder 18 can be a hydraulic cylinder or other mechanical device capable of outputting linear reciprocating motion.

[0060] Preferably, the above-mentioned storage movable support 14 is provided with a storage Z-axis guide rod 19 guiding the tray rack 11, and a storage Z-axis module 110 for driving the tray rack 11. In the embodiment, the storage movable support 14 is provided with the storage Z-axis guide rod 19 on both sides, i.e. the storage Z-axis guide rods 19 are arranged in pairs, and the storage Z-axis module 110 is located between the pair of storage Z-axis guide rods 19, so that the Z-axis movement of the tray rack 11 is more stable and not easy to shake; the storage Z-axis module 110 is a machine driven by a screw rod, and the screw rod is rotated by cooperation of the fittings such as electrode, driving wheel, belt and driven wheel.

[0061] Preferably, the above-mentioned storage base 13 and the storage movable support 15 can be provided with an organ case (not shown in the figure) for dust prevention, so as to keep the cleanliness and functional stability of each guide and driving part.

[0062] In some embodiments of the storage device 1, the above-mentioned tray rack 11 is provided with two rows of thirty tray grooves 111, which can store thirty pole pieces, greatly increasing the pole piece storage capacity of the storage device 1, and further increasing the single operation time of the equipment to ensure the continuity of production.

[0063] Referring to Figure 7 , the conveying device 2 of the utility model comprises:

[0064] The above-mentioned conveying device 2 comprises a conveying X-axis module 21 for outputting X-axis power, and a tray feeding seat 22 driven by the conveying X-axis module 21 to move along the X-axis, the tray feeding seat 22 is provided with a tray feeding groove 221 matching the width of the tray a, the Y-axis both ends of the tray feeding groove 221 are open to facilitate the tray a to enter and exit the tray feeding groove 221 along the Y-axis direction, and the Y-axis both sides of the tray feeding groove 221 are provided with a tray feeding pressing plate 222 to avoid the tray a to shake up and down in the tray feeding groove 221. In the embodiment, the conveying X-axis module 21 is a linear motor or other machine capable of outputting linear reciprocating motion and facilitating driving the tray feeding seat 22.

[0065] Further, the utility model comprises Figure 12The shown ejection device 7 includes a blanking ejector block 71 capable of Y-axis movement; the conveying device 2 includes a tray blanking seat 23 fixed to the conveying X-axis module 21 on the side opposite to the storage device 1; the tray blanking seat 23 is located at a blanking station and is provided with a tray blanking groove 231 matching the width of the tray a, the Y-axis both ends of the tray blanking groove 231 are open to allow the tray a to enter and exit the tray blanking groove 231 along the Y-axis direction, and the Y-axis both sides of the tray blanking groove 231 are provided with a tray blanking pressing plate 232 to avoid the tray a shaking up and down in the tray blanking groove 231. When the tray blanking groove 231 is opposite to the tray feeding groove 221 of the conveying device 2 (i.e. the tray a moves to the blanking station), the tray a in the tray feeding groove 221 can be ejected into the tray blanking groove 231 by the blanking ejector block 71 of the ejection device 7, so that the tray a is manually taken out and the inner (already cut and powder scraped) pole piece is taken away.

[0066] Secondly, the above-mentioned ejection device 7 includes an ejection Y-axis cylinder 72 for driving the blanking ejector block 71, an ejection support 73 for fixing the ejection Y-axis cylinder 72, and an ejection Y-axis guide rail 74 provided on the ejection support 73 for guiding the blanking ejector block 71.

[0067] Referring to Figures 8-9 The transfer device 5 of the utility model:

[0068] The above-mentioned transfer device 5 includes a transfer support 51 provided at a detection station, and a pole piece suction cup 52 capable of Y-axis and Z-axis movement relative to the transfer support 51, and the CCD camera 6 is located beside the transfer support 51. Through the Y-axis and Z-axis movement of the pole piece suction cup 52, the pole piece on the tray a can be sucked away and moved to the area of the CCD camera 6 for detection, code scanning and traceability, and then the pole piece is put back to the tray a for subsequent processes. In the embodiment, the CCD camera 6 is located in the lower area of the pole piece suction cup 52, which is mainly used for detecting the lower surface of the pole piece (suitable for part types of products).

[0069] Further, the above-mentioned transfer device 5 includes a transfer Y-axis module 53 fixed to the transfer support 51, a transfer Z-axis module 54 driven by the transfer Y-axis module 53, and a suction cup fixing frame 55 driven by the transfer Z-axis module 54, and the pole piece suction cup 52 is installed below the suction cup fixing frame 55. Through the power output of the transfer Y-axis module 53 and the transfer Z-axis module 54, the combined movement of the pole piece suction cup 52 in the Y-axis and the Z-axis can be realized to perform corresponding actions.

[0070] Secondly, the above-mentioned suction disc fixing frame 55 is provided with a suction disc mounting plate 551, the pole piece suction disc 52 is provided with a plurality of suction disc guide columns 521 movably penetrating the suction disc mounting plate 551, and the suction disc guide columns 521 are sleeved with the suction disc buffer springs 56 abutting against the suction disc mounting plate 551 and the pole piece suction disc 52 at two ends respectively to realize the buffering when the pole piece suction disc 52 is pressed down. In the embodiment, the air guide column 522 of the pole piece suction disc 52 movably penetrates the suction disc mounting plate 551 to be connected with the negative pressure equipment, that is, the air pipe is led out from the top of the suction disc mounting plate 551 to be connected with the negative pressure equipment, so as to avoid interfering with the action of the transfer device 5; a group of suction disc guide columns 521 and suction disc buffer springs 56 are arranged at the four corner positions of the pole piece suction disc 52.

[0071] The utility model discloses a code scanning gun 8 operated by manual, which is used for completing the whole traceability work with the traceability mechanism (see the following text).

[0072] Referring to Figures 10-11 The pole piece processing device 3 of the utility model comprises:

[0073] The pole piece processing device 3 comprises a pole piece processing support 31 at a processing station, and a laser 32 installed on the pole piece processing support 31 and used for outputting high-power laser to realize cutting and area powder scraping on the pole piece.

[0074] In some embodiments of the pole piece processing device 3, the pole piece processing support 31 is a Z-axis module, the pole piece processing device 3 comprises a laser mounting bracket 33 installed at the output end of the pole piece processing support 31, a pole piece pressing plate 34 below the laser mounting bracket 33, and a plurality of pressing plate buffer springs 35; the laser mounting bracket 33 is provided with a buffer plate 331; the pole piece pressing plate 34 is provided with a plurality of pressing plate guide columns 341 movably penetrating the buffer plate 331; the pressing plate buffer springs 35 are sleeved on the pressing plate guide columns 341 and abut against the buffer plate 331 and the pole piece pressing plate 34 at two ends respectively to realize the buffering when the pole piece pressing plate 34 is pressed down; the laser 32 is installed on the laser mounting bracket 33 and penetrates the buffer plate 331 and the pole piece pressing plate 34 downwards. Through the pole piece pressing plate 34 of the pole piece processing device 3, the pole piece can be pressed and fixed on the tray a between laser cutting and powder scraping, so that the pole piece remains flat, and the precision and processing quality of laser processing are improved. In the embodiment, a group of pressing plate guide columns 341 and pressing plate buffer springs 35 are arranged at the four corner positions of the pole piece pressing plate 34.

[0075] Secondly, the conveying device 2 is provided with a dust collecting box 24 below the laser 32, and three edges of the dust collecting box 24 are provided with baffles 25, and the edge without the baffle provides an opening for the tray a to enter and exit the dust collecting box 24; at the same time, a hopper 26 is arranged below the dust collecting box 24 for leading out dust. By arranging the dust collecting box 24 cooperating with the pole piece pressing plate 34, a relatively closed space can be formed during cutting and powder scraping, so as to avoid dust leakage and flying to affect the normal operation of other devices.

[0076] Furthermore, the pole piece processing device 3 includes a detection support 36 beside the laser mounting frame 33, the detection support 36 is provided with a photoelectric sensor 37, and the side wall of the laser mounting frame 33 is provided with a movable baffle 38 which is arranged to pass through the photoelectric sensor 37. Through the cooperation of the photoelectric sensor 37 and the baffle 38, whether the laser 32 is lifted to the position can be accurately detected, so as to realize giving a certain control signal according to the program setting, and achieve the purposes of automation, safety prevention and control, etc. For example, only when the laser 32 is lowered to press the tray a tightly, the laser 32 is allowed to be started, and the purpose of safety prevention is achieved. In the embodiment, the detection support 36 is a Z-axis module; preferably, the pole piece processing support 31 is a hand-operated Z-axis module, that is, the height of the laser 32 is manually controlled by a person; the detection support 36 is an electric Z-axis module, and the height of the photoelectric sensor 37 is controlled by the system.

[0077] Referring to Figures 13-15 The heat sealing liquid injection device 4 of the utility model:

[0078] The hot sealing and liquid injection device 4 comprises a lifting seat 41 capable of moving along the Z axis, a pair of openable and closable supports 42 arranged on both sides above the lifting seat 41, a bottom sealing head 43, a side sealing head 44 and a negative pressure suction head 45 sequentially mounted on the openable and closable supports 42 from bottom to top, and a liquid injection head 46 for injecting electrolyte. The lifting seat 41 is provided with a clamp 411 capable of being automatically opened and closed, for clamping the semi-finished product and exposing the edges thereof for hot sealing, that is, the width (Y axis direction width in this embodiment) of the clamp 411 is smaller than the width of the semi-finished product so as to expose the two sides of the semi-finished product. The bottom sealing head 43 and the side sealing head 44 are arranged in pairs and are respectively used for hot sealing the upper and lower bottom edges and the left and right side edges of the semi-finished product. The lower bottom edge is hot sealed before liquid injection and the upper bottom edge is hot sealed after liquid injection. Therefore, only one pair of bottom sealing heads 43 is needed, and in order to avoid the lifting seat 41 from moving along the Y axis, the side sealing head 44 is designed as two pairs of side sealing heads in this embodiment. The negative pressure suction head 45 is used for providing negative pressure to suck the left and right side walls of the Pock bag to open the upper opening thereof for facilitating liquid injection. Through the bottom sealing head 43, the side sealing head 44 and the negative pressure suction head 45 mounted on the openable and closable supports 42 capable of being opened and closed, the semi-finished product can be automatically subjected to the actions of battery edge hot sealing and electrolyte injection after the lifting seat 41 enters between the openable and closable supports 42, which is high in efficiency and good in product consistency. Moreover, the semi-finished product does not need to be turned over during the process of hot sealing and liquid injection, which can effectively avoid liquid leakage and the action is simple and efficient.

[0079] In some embodiments of the hot sealing and liquid injection device 4, the hot sealing and liquid injection device 4 comprises a hot sealing and liquid injection support 47 which is relatively fixed with the rack of the assembly equipment, and a hot sealing Z axis module 48, a hot sealing X axis module 49 and a liquid injection X axis module 410 mounted on the hot sealing and liquid injection support 47. The hot sealing Z axis module 48 is used for driving the lifting seat 41 to move along the Z axis to enter or exit the openable and closable supports 42. The hot sealing X axis module 49 is used for driving the openable and closable supports 42 to move along the X axis to realize the opening and closing actions. The liquid injection head 46 is located at the side of the openable and closable supports 42 and moves in and out of the position above the lifting seat 41 under the driving of the liquid injection X axis module 410. In this embodiment, the hot sealing Z axis module 48 is a linear motor along the Z axis. The hot sealing X axis module 49 is a combined mechanism of guide rail, sliding block, motor and transmission assembly. The liquid injection X axis module 410 is a combined mechanism of guide rail, mounting frame and air cylinder, and the liquid injection head 46 is mounted on the mounting frame.

[0080] In some embodiments of the hot sealing and liquid injection device 4, the top surface of the openable and closable supports 42 is provided with a giving slot 421 for the liquid injection head 46 to pass through, so that the liquid injection head 46 can move in and out of the openable and closable supports 42 without performing lifting action. The lifting seat 41 also does not need to continue to be lifted in the process of liquid injection. The overall action is smoother and more concise, and the efficiency is high.

[0081] In some embodiments of the heat-sealing liquid injection device 4, the heat-sealing liquid injection device 4 comprises a waste liquid tank 420 arranged below the moving track of the liquid injection head 46, for containing waste liquid when the liquid injection head 46 is cleaned. In this embodiment, the upper surface of the waste liquid tank 420 is a concave curved surface (or a conical surface), and a socket 4201 is arranged at the center position of the curved surface. The liquid injection head 46 is guided into the socket 4201 by the curved surface to achieve a sealing effect, thereby avoiding leakage of waste liquid.

[0082] In some embodiments of the heat-sealing liquid injection device 4, the heat-sealing liquid injection device 4 comprises a code spraying gun 430 for spraying a two-dimensional code on the finished product, which generally includes information such as battery batch number, sequence, electrode piece weight, foil weight, gram capacity, and active material proportion.

[0083] Further, the code spraying gun 430 is located at the lower end of the Z-axis track of the lifting seat 41, i.e., at the initial position of the lifting seat 41. After the semi-finished product becomes a finished product after the heat-sealing (left and right side edges and lower bottom edge) - liquid injection - heat-sealing (upper bottom edge), it is lowered to the position of the code spraying gun 430 for code spraying. After code spraying, the finished product can be directly taken away by manual operation.

[0084] In some embodiments of the heat-sealing liquid injection device 4, the heat-sealing liquid injection device 4 comprises an electrolyte container 440 connected to the liquid injection head 46 through a hose (not shown in the figure) for providing electrolyte.

[0085] In the present utility model, when the position of a part / component needs to be moved and has a precise numerical requirement, a sensor can be used for detection and positioning, or a driving element with higher precision (such as a lead screw or a stepper motor) can be used.

[0086] The use process of the present utility model is as follows:

[0087] Step 1: A batch of electrode pieces in a self-sealing bag are transferred from a transition bin to a glove box by manual operation. A code scanning gun 8 is used to scan the two-dimensional code of the self-sealing bag and the two-dimensional code of the corresponding tray a. Then the electrode pieces are placed in the tray a, and the tray a is placed in the storage device 1. This process is repeated until all the electrode pieces in the self-sealing bag are processed.

[0088] Step 2: The storage device 1 transfers the trays a one by one to the conveying device 2, and the conveying device 2 transfers the trays a output by the storage device 1 to the detection station, the processing station, and the discharging station in sequence.

[0089] Step 3: At the detection station, the electrode pieces are transferred to a CCD camera 6 by a transfer device 5, and real-time surface quality detection and code scanning and tracing operations are performed on the electrode pieces. Then the electrode pieces are placed back on the tray a by the transfer device 5.

[0090] Step 4, in the processing station, the pole piece processing device 3 performs the actions of cutting and area powder scraping on the pole piece by laser technology;

[0091] Step 5, the conveying device 2 returns the tray a to the detection station and performs the action of detecting the quality of the pole piece processing (i.e. cutting and powder scraping);

[0092] Step 6, in the discharging station, the tray a and the pole piece are taken away by hand, the pole piece is loaded into the pre-loaded Pock bag to assemble into the semi-finished product of the symmetrical battery, and the semi-finished product is put into the hot sealing liquid injection device 4;

[0093] Step 7, the hot sealing liquid injection device 4 performs the actions of battery edge hot sealing and electrolyte injection on the semi-finished product to assemble into the finished product of the symmetrical battery, and finally the finished product is taken out from the hot sealing liquid injection device 4 by hand.

[0094] The above embodiments and drawings are not limited to the product form and style of the utility model, and any appropriate changes or modifications made by any ordinary skilled person in the art shall be considered as not departing from the patent category of the utility model.

Claims

1.A polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device, characterized in that: it comprises a conveying device and a polar plate processing device; the conveying device conveys a tray with polar plates to the polar plate processing device at a processing station; the processing device comprises a polar plate processing support at the processing station, and a laser installed on the polar plate processing support for outputting laser to perform cutting and area powder scraping on the polar plate. 2.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 1, characterized in that: the polar plate processing support is a Z-axis module, the polar plate processing device comprises a laser mounting rack installed at the output end of the polar plate processing support, a polar plate pressing plate below the laser mounting rack, and a plurality of pressing plate buffer springs; the laser mounting rack is provided with a buffer plate; the polar plate pressing plate is provided with a plurality of polar plate pressing plate guide columns movably penetrating through the buffer plate; the pressing plate buffer springs are sleeved on the polar plate pressing plate guide columns and abut against the buffer plate and the polar plate pressing plate at both ends respectively; the laser is installed on the laser mounting rack and penetrates through the buffer plate and the polar plate pressing plate downward. 3.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 2, characterized in that: the conveying device is provided with a dust collection box at the processing station, the dust collection box is below the laser, and three edges of the dust collection box are provided with baffles, and one edge without baffle is provided for the tray to enter and exit; a hopper is arranged below the dust collection box. 4.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 3, characterized in that: the polar plate processing device comprises a detection support beside the laser mounting rack, a photoelectric sensor is installed on the detection support, and a movable baffle is installed on the side wall of the laser mounting rack and penetrates through the photoelectric sensor. 5.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 1, characterized in that: the conveying device comprises a conveying X-axis module for outputting X-axis power, and a tray feeding seat driven by the conveying X-axis module to move in X-axis, the tray feeding seat is provided with a tray feeding groove matching the width of the tray. 6.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 5, characterized in that: both ends of the Y-axis of the tray feeding groove are open, and tray feeding pressing plates are arranged on both sides of the Y-axis of the tray feeding groove. 7.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 5, characterized in that: it comprises an ejection device, the ejection device comprises a discharging ejection block moving in Y-axis; the conveying device comprises a tray discharging seat fixed to one side of the conveying X-axis module; the tray discharging seat is located at a discharging station and is provided with a tray discharging groove matching the width of the tray. 8.The polar plate cutting and powder scraping mechanism of a symmetrical battery assembly device according to claim 7, characterized in that: both ends of the Y-axis of the tray discharging groove are open, and tray discharging pressing plates are arranged on both sides of the Y-axis of the tray discharging groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 9. The symmetrical battery assembling device's pole piece cutting and powder scraping mechanism according to claim 7, characterized in that: The ejection device comprises an ejection Y-axis cylinder for driving the blanking ejection block, an ejection support for fixing the ejection Y-axis cylinder, and an ejection Y-axis guide rail arranged on the ejection support for guiding the blanking ejection block.

Images