Pole piece tape splicing device

Abstract

The utility model provides a pole piece splicing device, which relates to the technical field of battery splicing, and comprises a pole piece splicing piece for connecting one end of a pole piece to be spliced to the end part of a pole piece to be replaced, the pole piece splicing piece comprises a cutting and rubberizing device, and the cutting and rubberizing device comprises a bracket moving along the vertical direction and a cutting piece arranged on the bracket; a to-be-replaced pole piece and / or a to-be-connected pole piece are flatly placed on the top end surface of the tape connecting platform device; wherein the cutting piece and the tape splicing platform device are both provided with vacuum cavities, and the opposite sides of the cutting piece and the tape splicing platform device are both provided with pole piece adsorption openings communicated with the corresponding vacuum cavities; the pole piece outlet of the pole piece adsorption port adsorbs and fixes the piece tail of the pole piece to be replaced through negative pressure, and the piece inlet of the pole piece adsorption port adsorbs and fixes the end part of the pole piece to be connected, so that the pole piece to be replaced and the end part of the pole piece to be connected are fixed after being aligned, the whole pole piece cannot deviate during fitting and fixing, the pole piece connecting accuracy is improved, and the pole piece connecting efficiency is improved. The production quality of the battery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of battery connecting pieces, and particularly relates to a pole piece connecting belt device. Background Art

[0002] In the production process of power lithium batteries, the pole pieces are usually wound on a unwind roller. During use, the unwind roller is rotated to unwind the pole pieces. In the process of pole piece processing, to improve the continuity of the production process, after the pole pieces on one unwind roller are conveyed to the end, the end needs to be adhesively connected to the head of the pole pieces on the next new unwind roller.

[0003] Currently, lithium battery connecting pieces usually use sensors to detect the position of the pole pieces. For example, the automatic material changing and connecting belt device and lithium battery winding equipment proposed in Chinese Patent Publication No. CN211687565U set a detection component between the waste collecting mechanism and the unwind mechanism. The detection component can detect the position of the pole pieces between the waste collecting mechanism and the unwind mechanism. When the pole pieces between the waste collecting mechanism and the unwind mechanism are not in the preset position or the position of the pole pieces is not aligned with the position of the previous pole piece, the first driving mechanism can drive the waste collecting mechanism to move along the width direction of the pole pieces according to the position information of the pole pieces detected by the detection group, so that the pole pieces arranged on the waste collecting mechanism at this time move along the width direction of the pole pieces, so that the width direction of the pole pieces between the unwind mechanism and the waste collecting mechanism is aligned with the width direction of the previous pole piece, and the connecting belt mechanism gradually presses the two pole pieces to realize the connecting piece operation, but there are still the following problems;

[0004] After the pole pieces are rectified, when the two pole pieces are connected, the two pole pieces need to approach each other to realize the connecting piece operation, resulting in the two pole pieces not being in a tight state during guiding. When the connecting belt mechanism approaches the pole pieces, it is very easy to cause a deviation between the two pole pieces, so that the previously rectified pole pieces deviate due to the extrusion of the connecting belt mechanism during the connecting piece operation, thereby reducing the accuracy of the pole piece connecting piece and affecting the performance of the battery. Content of the Utility Model

[0005] To solve the above technical problems, the utility model adsorbs and fixes the pole pieces to be replaced and the pole pieces to be connected by using pole piece adsorption ports, and improves the stability of pole piece cutting and connecting belt. The specific technical solutions are as follows:

[0006] A pole piece tape connection device comprises a pole piece tape connection piece for connecting one end of a pole piece to be connected to the end of a pole piece to be replaced, the pole piece tape connection piece comprises a cutting and gluing device, which comprises a bracket moving in the vertical direction, a cutting piece arranged on the bracket; and a tape connection platform device, the top end surface of which is flat on the pole piece to be replaced and / or the pole piece to be connected; wherein the cutting piece and the tape connection platform device are both provided with a vacuum cavity, and the opposite sides are both provided with a pole piece suction port connected to the corresponding vacuum cavity, the cutting piece cuts off the end of the pole piece to be replaced, and connects the aligned ends of the pole piece to be connected and the pole piece to be replaced through a tape connection element.

[0007] In the above scheme, the cutting piece is adsorbed and fixed to the electrode to be replaced through the electrode adsorption port, and the electrode to be replaced is cut off to achieve a smooth cutting of the electrode. It uses negative pressure to fix the electrode, which can effectively avoid wrinkling on the electrode to be replaced and the electrode to be connected. It can also use negative pressure adsorption again after the electrode is corrected, which can greatly reduce the wrinkling effect of the electrode to be replaced and the electrode to be connected. At the same time, when the cutting piece cuts off the tail of the electrode to be replaced, due to the negative pressure adsorption and fixation of the electrode adsorption port, the electrode to be replaced will not be offset due to cutting, thereby ensuring the accuracy of the connection between the electrode to be replaced and the electrode to be connected, thereby improving battery performance.

[0008] Preferably, the cutting piece includes a cutting shell rotatably connected to the bracket, a cutting adsorption plate fixedly mounted at the bottom of the cutting shell, a cutting knife and a glue adsorption plate, the glue adsorption plate is provided with a pole piece adsorption port with a vacuum cavity, and the glue adsorption plate is mounted on the side of the cutting adsorption plate, so that the cutting shell and the bracket rotate relative to each other to realize the switching back and forth of the cutting adsorption plate and the glue adsorption plate. Among them, the pole piece adsorption port of the cutting adsorption plate can be adsorbed and fixed to the top surface of the pole piece to be replaced, and at the same time, the cutting knife moves downward with the cutting shell, and the cutting knife cuts off the tail of the pole piece to be replaced, ensuring that the tail of the pole piece to be replaced is flush, which is convenient for connecting the pieces, and the cutting adsorption plate and the glue adsorption plate can be switched back and forth, saving the cutting and gluing speed.

[0009] Preferably, the cutting adsorption plate is elastically connected to the cutting shell, and the cutting knife is installed in the empty area in the middle of the cutting adsorption plate, so that the cutting knife leaks out after the cutting adsorption plate is pressed. The cutting adsorption plate surface is squeezed and retracted, and the cutting knife is extended to cut the pole piece to be replaced, which can effectively hide the cutting knife and improve safety.

[0010] Preferably, a suction port for accommodating the cutting knife is provided at the top of the tape splicing platform device, and the suction port is connected to the vacuum chamber of the tape splicing platform device, wherein the suction port facilitates the cutting knife to press down and cut off the electrode piece.

[0011] Preferably, the cutting and pasting device further includes a support plate and a cylinder three rotatably connected to one end of the support plate. The bracket is slidably connected to the support plate, and the telescopic end of the cylinder three is rotatably connected to the cutting shell through a swivel joint. Among them, the telescopic end of the cylinder three extends out and drives the cutting adsorption plate and the pasting adsorption pressing plate to switch back and forth in a crank-rocker rotation mode through the swivel joint and the cutting shell. A fish-eye joint is axially hinged to the cutting shell through a rotary hinge two. When switching the panel, the cylinder two extends out, driving the front and rear rotary hinges to move axially at the same time, forming a crank-rocker rotation mode to complete the panel ° switching, and its switching speed is faster and more stable than the traditional rotation structure.

[0012] Preferably, driving rollers are rotatably connected to both the pole piece inlet end and the outlet end of the tape connecting platform device, and at least one driving motor for providing power to the driving rollers is installed on the tape connecting platform device. Among them, the driving motor drives the main driving roller for incoming sheets and the driven roller to move jointly, and can send out the connected pole pieces to complete the tape connecting action. The addition of the main and driven driving structure inside the tape connecting platform shortens the positions of the pole piece tape connecting and driving, reducing the risk of long-distance driving and tape running after the tape connecting is completed.

[0013] Preferably, the tape connecting platform device further includes a cylinder four installed at its pole piece inlet end and outlet end, and a pressure roller is installed at the telescopic end of the cylinder four above the tape connecting platform device. Among them, the cylinder four drives the pressure roller to move downward, and the pressure roller and the corresponding side driving roller jointly press the pole piece. The cylinder four drives the pressure roller to move downward, and the pressure roller and the corresponding side driving roller jointly press the pole piece, ensuring that the pole piece material line does not shift during the tape connecting process. The pole piece adsorption port adsorbs and fixes the pole piece to be replaced and the pole piece to be connected, ensuring the stability of the docking ends of the pole piece to be replaced and the pole piece to be connected, and contributing to the stability of cutting and sheet connecting.

[0014] Preferably, an adsorption cavity is further installed at the bottom end of the tape connecting platform device, and the adsorption cavity provides negative pressure for the adsorption port. Among them, the adsorption cavity provides negative pressure for the adsorption port, reducing the pole piece dust concentration during the cutting process.

[0015] Preferably, the cutting and pasting device includes a cylinder one arranged above the support plate, and the telescopic end of the cylinder one faces the top end of the support plate. Among them, by pressing down the support plate with the cylinder one, the support plate can be driven to approach the tape connecting platform device, realizing the cutting and sheet connecting operations.

[0016] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects:

[0017] The utility model is provided with a tape connecting platform device with a pole piece adsorption port. The pole piece to be replaced is placed at the pole piece adsorption port. The pole piece adsorption port adsorbs and fixes the end of the pole piece to be replaced through negative pressure. The cutting part cuts the end of the pole piece to be replaced through a cutting knife. At the same time, the cutting adsorption plate also adsorbs and fixes the top of the pole piece to be replaced through negative pressure, further ensuring that the pole piece to be replaced remains stable during cutting. The feeding port of the pole piece adsorption port adsorbs and fixes the end of the pole piece to be connected, ensuring that the ends of the pole piece to be replaced and the pole piece to be connected are aligned and fixed, so that the entire pole piece will not shift during bonding and fixing, improving the accuracy of pole piece connection and ensuring the production quality of the battery.

[0018] The cutting knife is located in the middle of the cutting adsorption plate. After the cutting adsorption plate presses the pole piece, the cutting knife leaks out and cuts the pole piece, avoiding the leakage of the cutting knife. At the same time, an adsorption port is arranged on the tape connecting platform device, which can accommodate part of the cutting knife, and the negative pressure of the adsorption port can effectively adsorb the pole piece dust after cutting. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a schematic cooperation structural diagram of the pole piece connecting device and the pole piece of the utility model;

[0021] Figure 3 is a schematic first perspective structural diagram of the pole piece connecting device of the utility model;

[0022] Figure 4 is a schematic second perspective structural diagram of the pole piece connecting device of the utility model;

[0023] Figure 5 is a schematic structural diagram of the cutting and pasting device of the utility model.

[0024] In the figure: 10, pole piece connecting part; 101, cutting and pasting device; 1011, cylinder one; 1012, slide rail; 1013, support plate; 1014, cylinder two; 1015, bracket; 1016, cutting part; 10161, cutting shell; 10162, cutting adsorption plate; 10163, cutting knife; 10164, pasting adsorption pressing plate; 1017, cylinder three; 1018, adapter; 102, tape connecting platform device; 1021, pole piece adsorption port; 1022, cylinder four; 1023, adsorption cavity; 1024, adsorption port; 1025, pressure roller; 1026, driving motor; 1027, driving roller; 20, guiding roller; 30, pole piece to be replaced; 40, pole piece to be connected. Detailed Embodiment

[0025] The present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Before elaborating on the technical solutions of the various embodiments of the present utility model, the nouns and terms involved will be explained. In this specification, components with the same name or the same reference numeral represent similar or identical structures, and are for illustrative purposes only.

[0026] As Figure 1 , Figure 3 and Figure 4 shown, a pole piece connecting tape device includes a pole piece connecting tape member 10 that connects one end of a to-be-connected pole piece 40 to the end of a to-be-replaced pole piece 30. The pole piece connecting tape member 10 includes a cutting and pasting device 101, which includes a bracket 1015 that moves in the vertical direction and a cutting member 1016 provided on the bracket 1015; and a connecting tape platform device 102, the top surface of which lies flat on the to-be-replaced pole piece 30 and / or the to-be-connected pole piece 40. Among them, both the cutting member 1016 and the connecting tape platform device 102 are provided with vacuum cavities, and on the opposite side, there are pole piece adsorption ports 1021 communicating with the corresponding vacuum cavities. The cutting member 1016 cuts off the end of the to-be-replaced pole piece 30 and connects the aligned ends of the to-be-connected pole piece 40 and the to-be-replaced pole piece 30 through a connecting tape element. A vacuum pump provides a vacuum environment in the vacuum cavities of the cutting member 1016 and the connecting tape platform device to ensure that a negative pressure is generated at the pole piece adsorption ports 1021 to adsorb and fix the to-be-replaced pole piece 30 and the to-be-connected pole piece 40. The to-be-replaced pole piece 30 and the to-be-connected pole piece 40 are guided to the pole piece connecting tape member 10 through guide rollers 20.

[0027] The pole piece adsorption ports 1021 of the connecting tape platform device 102 are divided into an inlet port and an outlet port, and respectively fix the head and tail of the to-be-replaced pole piece 30 and the to-be-connected pole piece 40 through negative pressure, ensuring that the pole pieces will not wrinkle during the connecting tape process. The bracket 1015 moves vertically downward towards the connecting tape platform device 102. The bracket 1015 drives the cutting member 1016 to approach the pole piece. The cutting member 1016 adsorbs and fixes the to-be-replaced pole piece 30 through the pole piece adsorption port 1021 and cuts off the to-be-replaced pole piece 30. The cutting method can be that a motor drives a cutter to cut from one side of the to-be-replaced pole piece 30 to the other side to achieve a flat cutting of the pole piece. By using negative pressure to fix the pole piece, it can effectively avoid wrinkling on the to-be-replaced pole piece 30 and the to-be-connected pole piece 40. If the to-be-replaced pole piece 30 and the to-be-connected pole piece 40 are offset, manual rectification or mechanical rectification can be used. After rectification, negative pressure adsorption can greatly reduce the wrinkling effect of the to-be-replaced pole piece 30 and the to-be-connected pole piece 40. At the same time, when the cutting member 1016 cuts off the tail of the to-be-replaced pole piece 30, due to negative pressure adsorption and fixation, the to-be-replaced pole piece 30 will not shift due to cutting, ensuring the accuracy of connecting the to-be-replaced pole piece 30 and the to-be-connected pole piece 40 and improving the battery performance.

[0028] As Figure 2 , Figure 3 and Figure 5As shown in the figure, the cutting part 1016 includes a cutting shell 10161 rotatably connected to the bracket 1015, a cutting and adsorbing plate 10162 fixedly installed at the bottom end of the cutting shell 10161, a cutting knife 10163, and a tape - sticking and adsorbing pressure plate 10164. The tape - sticking and adsorbing pressure plate 10164 is provided with a pole - piece adsorption port 1021 with a vacuum cavity. The tape - sticking and adsorbing pressure plate 10164 is installed on the side of the cutting and adsorbing plate 10162, so that the relative rotation of the cutting shell 10161 and the bracket 1015 can realize the back - and - forth switching between the cutting and adsorbing plate 10162 and the tape - sticking and adsorbing pressure plate 10164. When the bracket 1015 moves downward, it drives the cutting shell 10161 to move downward, and the cutting shell 10161 drives the cutting and adsorbing plate 10162 to move downward. The pole - piece adsorption port 1021 of the cutting and adsorbing plate 10162 can adsorb and fix the top surface of the pole piece to be replaced 30. At the same time, the cutting knife 10163 moves downward with the cutting shell 10161, and the cutting knife 10163 cuts off the tail of the pole piece to be replaced 30, ensuring that the tail of the pole piece to be replaced 30 is flush, which is convenient for connecting the pieces.

[0029] After the above operations, manually pull the manual pull rod to extract the tape - sticking and adsorbing pressure plate 10164 before connecting the tape. Adsorb the tape - connecting element required for connecting the tape on the plate surface and plug it back to its original position. Among them, the tape - connecting element can be an adhesive strip, conductive adhesive, or flexible connecting tape. By adsorbing the adhesive strip, conductive adhesive, or flexible connecting tape on one side of the pole - piece adsorption port 1021 of the tape - sticking and adsorbing pressure plate 10164, after the cutting knife 10163 cuts off the tail of the pole piece to be replaced 30, the cutting and adsorbing plate 10162 and the tape - sticking and adsorbing pressure plate 10164 can be switched to ensure that the tape - sticking and adsorbing pressure plate 10164 can connect the tail of the pole piece to be replaced 30 and the head of the pole piece to be connected 40 through the tape - connecting element.

[0030] As Figures 2 - 5 shown in the figure, the cutting and adsorbing plate 10162 is elastically connected to the cutting shell 10161. The cutting knife 10163 is installed in the middle vacant area of the cutting and adsorbing plate 10162, so that the cutting knife 10163 is exposed after the cutting and adsorbing plate 10162 is pressed. Among them, the cutting knife 10163 is arranged inside the middle gap between two cutting and adsorbing plates 10162. When the operation runs to the point where the cutting and adsorbing plate 10162 is in contact with the surface of the pole piece to be replaced 30, the plate surface of the cutting and adsorbing plate 10162 is squeezed and retracted, and the cutting knife 10163 extends out to cut off the pole piece to be replaced 30. Between the cutting and adsorbing plate 10162 and the cutting shell 10161, eight buffer spring rods can be used for support and telescopic buffering, and at the same time, eight air springs and spring pieces can also be used to realize telescopic and buffering.

[0031] As Figures 3 - 5As shown, an adsorption port 1024 for accommodating the cutting knife 10163 is provided at the top of the tape connecting platform device 102. The adsorption port 1024 is communicated with the vacuum cavity of the tape connecting platform device 102. Among them, the adsorption port 1024 at the center position of the surface of the tape connecting platform device 102 is convenient for the cutting knife 10163 to press down and cut the pole piece on the one hand, and is convenient for adsorbing the pole piece dust generated during the cutting process on the other hand. The inner cavity of the tape connecting platform 102 is connected to the negative pressure adsorption cavity 1023 through a pipeline. The adsorption cavity 1023 can be a negative pressure pipeline, which provides negative pressure for the adsorption port 1024 through a negative pressure pump to reduce the concentration of pole piece dust during the cutting process.

[0032] As Figure 3 and Figure 5 shown, the cutting and pasting device 101 further includes a support plate 1013 and a cylinder three 1017 rotatably connected to one end of the support plate 1013. The bracket 1015 is slidably connected to the support plate 1013. The telescopic end of the cylinder three 1017 is rotatably connected to the cutting shell 10161 through a swivel joint 1018. Among them, the telescopic end of the cylinder three 1017 extends out, and drives the cutting adsorption plate 10162 and the pasting adsorption pressing plate 10164 to switch back and forth in a crank-rocker rotation mode through the swivel joint 1018 and the cutting shell 10161. A cylinder two 1014 is also installed on the support plate 1013. The telescopic end of the cylinder two 1014 is fixed to the bracket 1015. By driving the telescopic end of the cylinder two 1014 to drive the bracket 1015 to move downward, and at the same time cooperating with the downward pressure of the guide bushing between the bracket 1015 and the support plate 1013, the cutting adsorption plate 10162, the cutting knife 10163 and the pasting adsorption pressing plate 10164 can be driven to move downward, and the cutting adsorption plate 10162 is pressed on the pole piece 30 to be replaced.

[0033] When switching between the cutting adsorption plate 10162 and the pasting adsorption pressing plate 10164, the two side panels are switched by a rotary hinge one installed at the rear end of the cylinder three 1017, and the swivel joint 1018 can be a fish-eye joint. At the same time, the other end of the fish-eye joint is axially hinged to the cutting shell 10161 through a rotary hinge two. When switching the panel, the cylinder two 1014 extends out, driving the front and rear rotary hinges to move axially at the same time, forming a crank-rocker rotation mode to complete a 90° panel switch, and its switching speed is faster and more stable than the traditional rotation structure.

[0034] As Figures 2 - 4As shown, the pole piece inlet and outlet ends of the tape splicing platform device 102 are both rotatably connected with drive rollers 1027, and the tape splicing platform device 102 is equipped with at least one drive motor 1026 that provides power to the drive roller 1027, wherein the drive roller 1027 can be divided into a main drive roller for feeding the pole piece and a slave drive roller, and the tape splicing platform device 102 is driven by the drive motor 1026 to jointly move the main drive roller for feeding the pole piece and the slave drive roller, and can deliver the spliced ​​pole piece to complete the tape splicing action. The master-slave drive structure added inside the tape splicing platform shortens the position of the pole piece splicing and driving, and reduces the risk of long-spacing drive tape walking after the splicing is completed.

[0035] like Figures 2 - 4 As shown, the tape splicing platform device 102 also includes a cylinder body 1022 installed at the inlet and outlet ends of the pole pieces thereof, and the telescopic end of the cylinder body 1022 is installed with a pressure roller 1025 above the tape splicing platform device 102; wherein, the cylinder body 1022 drives the pressure roller 1025 to move downward, and the pressure roller 1025 and the driving roller 1027 on the opposite side jointly press the pole piece to ensure that the pole piece material line will not be offset during the tape splicing process, and the pole piece adsorption port 1021 adsorbs and fixes the pole piece 30 to be replaced and the pole piece 40 to be connected, ensuring the stability of the docking ends of the pole piece 30 to be replaced and the pole piece 40 to be connected, which is helpful for the stability of cutting and splicing.

[0036] like Figure 3 As shown, the cutting and gluing device 101 includes a cylinder body 1011 arranged above a support plate 1013, the telescopic end of the cylinder body 1011 faces the top of the support plate 1013, the cylinder body 1011 is fixed to the external body by an angle steel, and the external body can also be installed with a slide rail 1012, the support plate 1013 slides along the sequential direction with the external body through the slide rail 1012, so as to improve the stability of the sliding process, the telescopic end of the cylinder body 1011 is connected to the support plate 1013, and the support plate 1013 is driven to move along the slide rail 1012 through the cylinder body 1011.

[0037] When the utility model is in use, the pole piece is unrolled from the air shaft and passes through the roller, and then passes through the splicing platform surface; when the pole piece 40 to be spliced meets the requirement of roll change, first, the vacuum on the surface of the splicing platform device 102 is turned on to adsorb the pole piece 40 to be spliced. At the same time, the pressure rollers 1025 at both ends of the splicing platform device 102 are pressed down to press the pole piece 40 to be spliced on both the inlet and outlet sides of the platform; then, the cylinder body 1011 in the cutting and pasting device 101 lowers the cutting and adsorbing plate 10162 to be attached to and adsorb the upper surface of the pole piece 40 to be spliced. At this time, the cylinder body 1014 is pressed down, the plate surface of the cutting and adsorbing plate 10162 is squeezed and retracted, the cutting knife 10163 extends out, and the pole piece is cut; then, the vacuum of the cutting and adsorbing plate 10162 is turned off and the cylinder body 1014 is retracted. The two side panels of the cutting part 1016 rotate 90° for switching, and the pasting surface of the pasting and adsorbing pressing plate 10164 faces down; then, the vacuum at the sheet inlet on the upper surface of the splicing platform device 102 is turned off, and the pressure roller 1025 at the pole piece inlet is opened. After the waste roll of the air shaft of the pole piece 30 to be replaced is recovered, that is, after the pole piece of the pole piece 30 to be replaced is used up, when replacing the pole piece 40 to be spliced, the operator unrolls the head of the pole piece 40 to be spliced to the sheet inlet of the splicing platform device 102, flush with the sheet inlet, and then turns on the vacuum at the sheet inlet again. The pressure roller 1025 at the pole piece inlet is pressed down again, and then the cylinder body 1014 is lowered again. The rubber strip on the vacuum panel of the pasting and adsorbing pressing plate 10164 is attached to the tail of the pole piece 30 to be replaced and the head of the pole piece 40 to be spliced. At the same time, the vacuum of the pasting and adsorbing pressing plate 10164 is turned off, and the cylinder body 1014 and the cylinder body 1011 are retracted; then, the front and rear pressure rollers 1025 of the splicing platform are retracted, the pole piece adsorption port 1021 on the surface of the splicing platform device 102 is closed, and finally, the two driving rollers 1027 move jointly to send out the spliced pole piece, completing the splicing operation.

[0038] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A pole piece connecting device, comprising a pole piece connecting member (10) for connecting one end of a pole piece (40) to be connected to the end of a pole piece (30) to be replaced, characterized in that: The pole piece connecting piece (10) comprises: A cutting and gluing device (101), comprising a bracket (1015) movable in a vertical direction, and a cutting piece (1016) arranged on the bracket (1015); and A tape connection platform device (102), the top surface of which is flatly placed with the pole piece to be replaced (30) and / or the pole piece to be connected (40); The cutting piece (1016) and the tape-joining platform device (102) are both provided with a vacuum cavity, and the opposite sides are both provided with a pole piece suction port (1021) connected to the corresponding vacuum cavity. The cutting piece (1016) cuts off the end of the pole piece (30) to be replaced, and connects the aligned ends of the pole piece (40) to be connected and the pole piece (30) to be replaced through a tape-joining element.

2. The pole piece connection device according to claim 1, characterized in that: The cutting piece (1016) comprises a cutting shell (10161) rotatably connected to the bracket (1015), a cutting adsorption plate (10162) fixedly mounted at the bottom of the cutting shell (10161), a cutting knife (10163) and a glue adsorption plate (10164); the glue adsorption plate (10164) is provided with a pole piece adsorption port (1021) with a vacuum cavity; the glue adsorption plate (10164) is mounted on the side of the cutting adsorption plate (10162), so that the cutting shell (10161) and the bracket (1015) can rotate relative to each other to realize the switching of the cutting adsorption plate (10162) and the glue adsorption plate (10164).

3. The pole piece connection device according to claim 2, characterized in that: The cutting adsorption plate (10162) is elastically connected to the cutting shell (10161), and the cutting knife (10163) is installed in the empty area in the middle of the cutting adsorption plate (10162), so that the cutting knife (10163) leaks out after the cutting adsorption plate (10162) is compressed.

4. The pole piece connection device according to claim 2, characterized in that: The top end of the tape splicing platform device (102) is provided with a suction port (1024) for accommodating the cutting knife (10163), and the suction port (1024) is connected to the vacuum cavity of the tape splicing platform device (102).

5. The pole piece connection device according to claim 2, characterized in that: The cutting and gluing device (101) further comprises a support plate (1013), a cylinder body (1017) rotatably connected to one end of the support plate (1013), the bracket (1015) is slidably connected to the support plate (1013), and the telescopic end of the cylinder body (1017) is rotatably connected to the cutting shell (10161) via an adapter (1018); Among them, the telescopic end of the cylinder body three (1017) is extended, and through the adapter (1018) and the cutting shell (10161), the cutting adsorption plate (10162) and the glue adsorption pressure plate (10164) are driven to switch back and forth in the manner of rotating a crank rocker.

6. The pole piece connection device according to claim 1, characterized in that: The belt connection platform device (102) The pole piece inlet and outlet ends are both rotatably connected to drive rollers (1027), and the belt connection platform device (102) is equipped with at least one drive motor (1026) for providing power to the drive rollers (1027).

7. The pole piece connection device according to claim 6, characterized in that: The tape splicing platform device (102) further comprises a cylinder body four (1022) installed at the pole piece inlet and outlet ends thereof, and a pressure roller (1025) above the tape splicing platform device (102) is installed at the telescopic end of the cylinder body four (1022); The cylinder body four (1022) drives the pressure roller (1025) to move downward, and the pressure roller (1025) and the driving roller (1027) on the corresponding side jointly press the pole piece.

8. The pole piece connection device according to claim 4, characterized in that: An adsorption chamber (1023) is also installed at the bottom end of the belt connection platform device (102), and the adsorption chamber (1023) provides negative pressure for the adsorption port (1024).

9. The pole piece connection device according to claim 5, characterized in that: The cutting and gluing device (101) comprises a cylinder body (1011) arranged above the support plate (1013), and the telescopic end of the cylinder body (1011) faces the top of the support plate (1013).

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