Battery piece edge covering equipment with automatic gluing function

Abstract

The utility model discloses an automatic gluing battery piece edge covering device which comprises a scraper mechanism which is used for circularly scraping edge covering glue above an edge covering groove, and the scraper mechanism comprises a scraper assembly and a driving mechanism. The scraper assembly comprises a positioning plate, a first scraper and a second scraper, the first scraper and the second scraper are arranged on the two sides of the outer wall of the positioning plate respectively, the first scraper and the second scraper are both arranged above the edge covering groove, and the lower surface of the first scraper and the lower surface of the second scraper are both smooth arc-shaped surfaces and make contact with the upper surface of the check block. When the first scraper moves, edge covering glue added to the surface of the edge covering groove by the flow guide pipe can be smoothed, it is guaranteed that the edge of the battery piece makes uniform contact with the edge covering glue on the upper surface of the edge covering groove, and the edge covering effect is improved; it can be guaranteed that glue removing, glue adding and glue scraping can be conducted on the surface of the edge covering groove every time the rotor moves, and the battery piece edge covering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cell edge wrapping, in particular to a cell edge wrapping device with automatic glue application. Background Technique

[0002] The edge wrapping process of photovoltaics is the development trend in the future and a new process in the current industry. Traditional edge wrapping mechanisms can be divided into dot glue edge wrapping, roller edge wrapping, and immersion edge wrapping. The current industry has high requirements for the accuracy of edge wrapping. Among them, dot glue edge wrapping has a slow speed, low accuracy, and low production capacity, which is not suitable for the photovoltaic industry; roller edge wrapping will cause the diluent in the edge wrapping glue to volatilize rapidly, resulting in an increase in the viscosity of the edge wrapping glue. Moreover, after a long time, the glue on the roller will solidify, and the cell will be crushed when edge wrapping again, which requires timely replacement of the roller and the wiper blade. The immersion edge wrapping device directly immerses the cell in a square glue box. However, when the edge wrapping glue in the glue box is in a static storage state for a long time, the surface diluent volatilizes, resulting in an increase in the viscosity of the edge wrapping glue and the existence of surface tension.

[0003] In order to eliminate the surface tension of the edge wrapping glue in the glue box, the existing immersion edge wrapping mechanism usually uses a peristaltic pump to pump out the edge wrapping glue inside the glue box and then add it back to the glue box to keep the edge wrapping glue inside the glue box in a circulating flow state, which can achieve the effect of destroying the surface tension of the edge wrapping glue; however, when directly adding edge wrapping glue inside the glue box, it is easy to cause the liquid level to fluctuate. Therefore, it cannot ensure that the edge wrapping glue immersion liquid level is kept horizontal quickly every time the cell is edge wrapped, thus affecting the subsequent cell edge wrapping effect and edge wrapping efficiency. Summary of the Utility Model

[0004] To solve the problems raised in the background technique, the utility model provides the following technical solutions:

[0005] A cell edge wrapping device with automatic glue application, including an installation table, and further including: a glue box arranged on the upper side of the installation table and having an open top structure, a baffle vertically arranged at the middle position inside the glue box, a wrapping groove opened on the upper surface of the baffle, and a diversion hole penetrating the inner cavity of the glue box opened at the middle position of the bottom of the glue box; it further includes a scraper mechanism for circulatingly scraping and leveling the edge wrapping glue above the wrapping groove. The scraper mechanism includes a scraper assembly and a driving mechanism. The scraper assembly includes a positioning plate, and two first scrapers and second scrapers respectively arranged on both outer sides of the outer wall of the positioning plate. The first scraper and the second scraper are both arranged above the wrapping groove, and the lower surfaces of the first scraper and the second scraper are both smooth arc surfaces and are in contact with the upper surface of the baffle.

[0006] As a further solution of the present utility model: The driving mechanism includes: two positioning blocks respectively arranged at the top of the mounting table and located at both ends of the glue box, a stator column fixedly connected between the two positioning blocks and arranged in parallel with the stop block, a rotor slidably connected to the outer wall of the stator column, a connecting platform fixedly connected to the top of the rotor, a second slide rail fixedly connected to the top of the mounting table and arranged in parallel with the stator column, and a second slide seat fixedly connected to the bottom of the connecting platform. The second slide seat is clamped on the outer wall of the second slide rail and slidably connected to the second slide rail. The positioning plate is fixedly connected to the outer wall of the connecting platform.

[0007] As a further solution of the present utility model: It further includes a liquid level sensor arranged above the glue box for monitoring the height of the edge-sealing glue liquid level inside the glue box. A communication groove penetrating the outer wall of the stop block is opened at the middle position of the bottom of the stop block. The inner bottom surface of the glue box is a V-shaped inclined surface, and the lower surface of the stop block fits with the bottom surface of the glue box.

[0008] As a further solution of the present utility model: The scraping knife mechanism includes a scraping knife assembly and a driving mechanism, and further includes a glue application mechanism for pumping out the edge-sealing glue inside the glue box and adding it above the edge-sealing groove. The glue application mechanism includes: a peristaltic pump, a pump head, and a rubber tube. The rubber tube passes through the inside of the pump head. The pump head is installed on the outer wall of the peristaltic pump. The pump head includes a pump housing, a roller rotatably connected to the middle position of the inner wall of the pump housing, and a card clamped inside the pump housing and forming an extrusion channel with the roller. The rubber tube passes through the extrusion channel.

[0009] As a further solution of the present utility model: The driving mechanism includes: the driving shaft of the peristaltic pump is inserted into the roller and drives the roller to rotate. One end of the rubber tube is communicated with the inside of the diversion hole. The other end of the rubber tube is fixedly connected with a diversion tube of an L-shaped structure. The end of the diversion tube away from the rubber tube is arranged above the edge-sealing groove. The diversion tube is fixed above the positioning plate through a cover plate.

[0010] As a further solution of the present utility model: The end of the diversion tube close to the edge-sealing groove is arranged between the first scraping knife and the second scraping knife. The first scraping knife and the second scraping knife are symmetrically arranged left and right with the diversion tube as the axis. The distance between the bottoms of the first scraping knife and the second scraping knife is greater than the distance between the tops.

[0011] As a further solution of the present utility model: Electric limit blocks for restricting the moving stroke of the connecting platform are arranged at both ends of the second slide rail on the top of the mounting table.

[0012] As a further solution of the utility model: First sliding seats are arranged on both sides of the bottom of the mounting table. The first sliding seats are vertically arranged with the stator columns. The inner walls of the first sliding seats are inserted with first sliding rails. Two groups of handles and first sliding seats are respectively fixedly connected to the two ends of the front outer wall of the mounting table. Adsorption plates corresponding to the positions of the adsorption blocks are arranged at the ends, away from the glue box, of the two first sliding rails. The adsorption blocks are made of metal, and magnets for adsorbing the adsorption blocks are arranged on the surface of the adsorption plates close to the adsorption blocks.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. The peristaltic pump drives the pump head to continuously squeeze the rubber tube, thereby continuously extracting the edge-sealing glue inside the glue box and adding it above the edge-sealing groove through the diversion tube, which can prevent the phenomenon of tension on the surface of the edge-sealing glue due to long-term static storage.

[0014] 2. During the process of adding the edge-sealing glue through the diversion tube, the first scraper and the second scraper move along with the positioning plate at the same time. When the second scraper moves, it can smooth the residual edge-sealing glue on the upper surface of the edge-sealing groove, improving the flatness of the base surface when adding the edge-sealing glue through the diversion tube. When the first scraper moves, it can smooth the edge-sealing glue added on the surface of the edge-sealing groove by the diversion tube, ensuring uniform contact between the edge of the battery cell and the edge-sealing glue on the upper surface of the edge-sealing groove, improving the edge-sealing effect. Moreover, by setting the first scraper and the second scraper, it can ensure that each movement stroke of the mover can perform operations such as removing glue, adding glue, and scraping the glue on the surface of the edge-sealing groove, improving the edge-sealing efficiency of the battery cell.

[0015] 3. By setting a liquid level sensor to monitor the liquid level of the edge-sealing glue inside the glue box, when the liquid level of the edge-sealing glue inside the glue box drops to the set limit value, the liquid level sensor transmits the liquid level signal to an external alarm to notify the staff to add the edge-sealing glue. The way to add the edge-sealing glue is manual addition by the staff or addition through an automatic glue adding device, so as to achieve the function of timely replenishing glue. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a battery cell edge-sealing device with automatic glue application.

[0017] Figure 2 It is a schematic diagram of the internal structure of the glue box in a battery cell edge-sealing device with automatic glue application.

[0018] Figure 3 It is a schematic diagram of the back structure of a battery cell edge-sealing device with automatic glue application.

[0019] Figure 4 It is a schematic diagram of the exploded structure of the pump head of a battery cell edge-sealing device with automatic glue application.

[0020] Figure 5 It is a schematic diagram of the enlarged structure of part A in a battery cell edge-sealing device with automatic glue application.

[0021] Figure 6 It is a schematic structural diagram of the enlarged structure of part B in an automatic gluing cell edge-wrapping device.

[0022] Figure 7 It is a schematic structural diagram of the adsorption plate and magnet structure in an automatic gluing cell edge-wrapping device.

[0023] In the figure: 1, peristaltic pump; 2, pump head; 3, rubber tube; 4, mounting table; 5, first sliding seat; 6, first slide rail; 7, handle; 8, adsorption block; 9, adsorption plate; 10, glue box; 11, stop block; 12, edge-wrapping groove; 13, diversion hole; 14, communication groove; 15, positioning block; 16, stator column; 17, rotor; 18, connecting table; 19, positioning plate; 20, diversion pipe; 21, cover plate; 22, first scraper; 23, second scraper; 24, magnet; 25, electrical limit block; 26, liquid level sensor; 27, pump housing; 28, roller; 29, card; 30, second slide rail; 31, second sliding seat. Detailed implementation manners

[0024] The following further elaborates on the present utility model in conjunction with the accompanying drawings and specific embodiments.

[0025] Referring to Figure 1 and Figure 2 As shown, an automatic gluing cell edge-wrapping device includes a mounting table 4, and further includes: a glue box 10 disposed above the mounting table 4 and having an open top structure, a stop block 11 vertically disposed at the middle position inside the glue box 10, an edge-wrapping groove 12 opened on the upper surface of the stop block 11, a liquid level sensor 26 disposed above the glue box 10 for monitoring the height of the edge-wrapping glue liquid level inside the glue box 10. A diversion hole 13 penetrating the inner cavity of the glue box 10 is opened at the middle position of the bottom of the glue box 10, and a communication groove 14 penetrating the outer wall of the stop block 11 is opened at the middle position of the bottom of the stop block 11; since the edge-wrapping glue inside the glue box 10 is continuously consumed when edge-wrapping the cell, by setting the liquid level sensor 26 to monitor the edge-wrapping glue liquid level inside the glue box 10, when the edge-wrapping glue liquid level inside the glue box 10 drops to the set limit value, the liquid level sensor 26 can transmit the liquid level signal to an external alarm to notify the staff to add edge-wrapping glue. The method of adding edge-wrapping glue is manual addition or addition through an automatic glue adding device to achieve the function of timely glue replenishment.

[0026] The inner bottom surface of the glue box 10 is a V-shaped inclined surface, and the lower surface of the stop block 11 is attached to the bottom surface of the glue box 10, facilitating the self-flow of the edge-wrapping glue inside the glue box 10 to the bottom.

[0027] And, a gluing mechanism for pumping out the edge-wrapping glue inside the glue box 10 and adding it above the edge-wrapping groove 12;

[0028] Referring to Figure 1and Figure 4 As shown in Figure 4 , the gluing mechanism includes a peristaltic pump 1, a pump head 2, and a rubber tube 3. The rubber tube 3 passes through the inside of the pump head 2, and the pump head 2 is installed on the outer wall of the peristaltic pump 1. The pump head 2 includes a pump housing 27, a roller 28 rotatably connected to the middle position of the inner wall of the pump housing 27, and a card 29 clamped inside the pump housing 27 and forming an extrusion channel with the roller 28. The rubber tube 3 passes through the extrusion channel. The drive shaft of the peristaltic pump 1 is inserted into the inside of the roller 28 and drives the roller 28 to rotate. One end of the rubber tube 3 is communicated with the inside of the diversion hole 13, and the other end of the rubber tube 3 is fixedly connected with a diversion tube 20 of an L-shaped structure. The end of the diversion tube 20 away from the rubber tube 3 is arranged above the edge wrapping groove 12.

[0029] Before edge-wrapping the battery cell, a certain amount of edge-wrapping glue is added to the glue box 10. The peristaltic pump 1 is started, and the drive shaft of the peristaltic pump 1 drives the roller 28 to rotate, thereby continuously squeezing the rubber tube 3 located in the extrusion channel, and then driving the edge-wrapping glue inside the rubber tube 3 to move towards the diversion tube 20. It should be understood that the prior art has already disclosed the basic structure and working principle of the peristaltic pump 1 and the pump head 2, and only a simple introduction is made here.

[0030] By driving the peristaltic pump 1 to drive the pump head 2 to continuously squeeze the rubber tube 3, the edge-wrapping glue inside the glue box 10 is continuously drawn out and added above the edge wrapping groove 12 through the diversion tube 20, which can prevent the phenomenon of tension on the surface of the edge-wrapping glue due to long-term static storage.

[0031] Referring to Figure 5 and Figure 6 As shown in Figure 5 and Figure 6 , the doctor blade mechanism is used to circularly scrape and level the edge-wrapping glue added above the edge wrapping groove 12.

[0032] The doctor blade mechanism includes a doctor blade assembly and a drive mechanism. The doctor blade assembly includes a positioning plate 19, a first doctor blade 22 and a second doctor blade 23 respectively arranged on both sides of the outer wall of the positioning plate 19. The first doctor blade 22 and the second doctor blade 23 are both arranged above the edge wrapping groove 12. The lower surfaces of the first doctor blade 22 and the second doctor blade 23 are both smooth arc surfaces and contact the upper surface of the stop block 11. The end of the diversion tube 20 close to the edge wrapping groove 12 is arranged between the first doctor blade 22 and the second doctor blade 23. The first doctor blade 22 and the second doctor blade 23 are symmetrically arranged left and right with the diversion tube 20 as the axis. The distance between the bottoms of the first doctor blade 22 and the second doctor blade 23 is greater than the distance between the tops.

[0033] The driving mechanism includes: two positioning blocks 15 respectively arranged on the top of the mounting table 4 and located at both ends of the glue box 10, a stator column 16 fixedly connected between the two positioning blocks 15 and arranged in parallel with the stopper 11, a rotor 17 slidably connected to the outer wall of the stator column 16, a connecting table 18 fixedly connected to the top of the rotor 17, a second slide rail 30 fixedly connected to the top of the mounting table 4 and arranged in parallel with the stator column 16, and a second slide block 31 fixedly connected to the bottom of the connecting table 18. The second slide block 31 is clamped on the outer wall of the second slide rail 30 and slidably connected to the second slide rail 30.

[0034] The positioning plate 19 is fixedly connected to the outer wall of the connecting table 18, and the diversion tube 20 is fixed above the positioning plate 19 through the cover plate 21.

[0035] When it is necessary to add edge-sealing glue to the surface of the edge-sealing groove 12, it is necessary to control the diversion tube 20 to move along the direction of the edge-sealing groove 12. Among them, the rotor 17 and the stator column 16 belong to a columnar linear motor. Due to the Lorentz force acting on the conductive coil of the rotor 17, the rotor 17 can move linearly along the outer wall of the stator column 16.

[0036] When the rotor 17 moves on the outer wall of the stator column 16, it will drive the connecting table 18 to move synchronously, and then drive the second slide block 31 to slide on the outer wall of the second slide rail 30. At the same time, it drives the positioning plate 19 and the diversion tube 20 to move along the edge-sealing groove 12. During the movement of the diversion tube 20, the peristaltic pump 1 is continuously started, and then the edge-sealing glue inside the glue box 10 is continuously supplied into the diversion tube 20, and then added above the edge-sealing groove 12. During the process of the diversion tube 20 adding the edge-sealing glue, the first scraper 22 and the second scraper 23 move along with the positioning plate 19 at the same time. Taking the positioning plate 19 moving from the first scraper 22 to the second scraper 23 direction in the initial state as an example, during the process of the diversion tube 20 adding the edge-sealing glue, when the second scraper 23 moves, it can smooth the residual edge-sealing glue on the upper surface of the edge-sealing groove 12, improving the flatness of the base surface when the diversion tube 20 adds the edge-sealing glue. And when the first scraper 22 moves, it can smooth the edge-sealing glue added by the diversion tube 20 on the surface of the edge-sealing groove 12, ensuring that the edge of the battery cell is in uniform contact with the edge-sealing glue on the upper surface of the edge-sealing groove 12 and improving the edge-sealing effect.

[0037] When the first scraper 22 and the second scraper 23 scrape the edge-sealing glue on the surfaces of the stopper 11 and the edge-sealing groove 12, they will scrape the residual edge-sealing glue into the glue box 10. By setting the communication groove 14, the edge-sealing glue on both sides of the stopper 11 inside the glue box 10 can be communicated, so that the liquid level of the edge-sealing glue inside the glue box 10 remains consistent.

[0038] After completing the edge wrapping of one side of the battery cell, the battery cell is turned and waits for the next edge wrapping process. At this time, the mover 17 is controlled to move in the reverse direction. Similarly, the connecting table 18 and the positioning plate 19 are driven to move to the initial position. The diversion tube 20 continues to add edge wrapping glue to the upper surface of the edge wrapping groove 12. At this time, when the first scraper 22 moves, it can smooth the residual edge wrapping glue on the upper surface of the edge wrapping groove 12, improving the flatness of the base surface when the diversion tube 20 adds the edge wrapping glue. And when the second scraper 23 moves, it can smooth the edge wrapping glue added by the diversion tube 20 on the surface of the edge wrapping groove 12, thereby improving the edge wrapping efficiency.

[0039] Refer to Figure 1 and Figure 7 As shown, at both ends of the second slide rail 30 at the top of the installation table 4, there are electrical limit blocks 25 that limit the moving stroke of the connecting table 18, improving the accuracy of adding edge wrapping glue above the edge wrapping groove 12 by the diversion tube 20.

[0040] On both sides of the bottom of the installation table 4, there are first sliding seats 5. The first sliding seats 5 are perpendicular to the stator column 16. The inner wall of the first sliding seat 5 is inserted with a first slide rail 6. At both ends of the front outer wall of the installation table 4, there are respectively fixed two groups of handles 7 and the first sliding seats 5. At the ends of the two first slide rails 6 far from the glue box 10, there are adsorption plates 9 corresponding to the positions of the adsorption blocks 8. The adsorption blocks 8 are made of metal, and on the side of the adsorption plate 9 close to the adsorption block 8, there is a magnet 24 for adsorbing the adsorption block 8.

[0041] When it is necessary to repair the scraper mechanism, the staff pulls the handle 7 forward, thereby driving the installation table 4 to move forward, and at the same time driving the adsorption block 8 to slide forward on the outer wall of the first slide rail 6 until the adsorption block 8 is adsorbed by the magnet 24 on the outer wall of the adsorption plate 9, liberating the hands of the staff and facilitating the staff to repair and maintain the scraper mechanism.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automatic gluing device for battery cell edge wrapping, including an installation table, characterized in that, Further included are: a glue box disposed above the mounting table and having an open top structure, a stopper vertically disposed at the middle position inside the glue box, and a hemming groove formed on the upper surface of the stopper. A diversion hole penetrating the inner cavity of the glue box is formed at the middle position of the bottom of the glue box; Further included is a scraper mechanism for cyclically scraping and leveling the hemming glue above the hemming groove. The scraper mechanism includes a scraper assembly and a driving mechanism. The scraper assembly includes a positioning plate, and a first scraper and a second scraper respectively disposed on both sides of the outer wall of the positioning plate. The first scraper and the second scraper are both disposed above the hemming groove, and the lower surfaces of the first scraper and the second scraper are both smooth arc surfaces and are in contact with the upper surface of the stopper.

2. The automatic glue application battery cell edge wrapping device according to claim 1, characterized in that, The driving mechanism includes: two positioning blocks respectively disposed at the top of the mounting table and located at both ends of the glue box, a stator column fixedly connected between the two positioning blocks and disposed parallel to the stopper, a rotor slidably connected to the outer wall of the stator column, a connecting platform fixedly connected to the top of the rotor, a second slide rail fixedly connected to the top of the mounting table and disposed parallel to the stator column, and a second slide block fixedly connected to the bottom of the connecting platform. The second slide block is clamped on the outer wall of the second slide rail and is slidably connected to the second slide rail. The positioning plate is fixedly connected to the outer wall of the connecting platform.

3. An edge-wrapping device for battery chips with automatic glue application according to claim 1, characterized in that Further included is a liquid level sensor disposed above the glue box for monitoring the liquid level height of the hemming glue inside the glue box. A communication groove penetrating the outer wall of the stopper is formed at the middle position of the bottom of the stopper. The inner bottom surface of the glue box is a V-shaped inclined surface, and the lower surface of the stopper fits with the bottom surface of the glue box.

4. An edge-wrapping device for battery chips with automatic glue application according to claim 1, characterized in that, Further included is a gluing mechanism for pumping out the hemming glue inside the glue box and adding it above the hemming groove. The gluing mechanism includes: a peristaltic pump, a pump head, and a rubber tube. The rubber tube passes through the inside of the pump head. The pump head is installed on the outer wall of the peristaltic pump. The pump head includes a pump housing, a roller rotatably connected to the middle position of the inner wall of the pump housing, and a card clamped inside the pump housing and forming a squeezing channel with the roller. The rubber tube passes through the squeezing channel.

5. An edge-wrapping device for battery cells with automatic gluing according to claim 4, characterized in that, The drive shaft of the peristaltic pump is inserted into the roller and drives the roller to rotate. One end of the rubber tube is communicated with the inside of the diversion hole, and the other end of the rubber tube is fixedly connected with a diversion pipe of an L-shaped structure. The end of the diversion pipe away from the rubber tube is disposed above the hemming groove. The diversion pipe is fixed above the positioning plate through a cover plate.

6. An edge wrapping device for battery wafers with automatic gluing according to claim 5, characterized in that, The end of the diversion pipe close to the hemming groove is disposed between the first scraper and the second scraper. The first scraper and the second scraper are symmetrically disposed left and right with the diversion pipe as the axis. The distance between the bottoms of the first scraper and the second scraper is greater than the distance between the tops.

7. An edge wrapping device for battery chips with automatic gluing according to claim 2, characterized in that, Electrical limit blocks for restricting the moving stroke of the connecting platform are disposed at both ends of the second slide rail on the top of the mounting table.

8. An edge-wrapping device for battery chips with automatic gluing according to claim 2, characterized in that, On both sides of the bottom of the installation table, first sliding seats are provided. The first sliding seats are vertically arranged with respect to the stator columns. The inner walls of the first sliding seats are inserted with first sliding rails. At both ends of the front outer wall of the installation table, two groups of handles and first sliding seats are respectively fixedly connected. At the ends of both first sliding rails away from the glue box, adsorption plates corresponding to the positions of the adsorption blocks are provided. The adsorption blocks are made of metal, and magnets for adsorbing the adsorption blocks are arranged on the surface of the adsorption plate close to the adsorption blocks.

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