Multi-material coil pole piece unwinding device

Abstract

The present invention discloses a multi-material roll pole piece unwinding device, comprising a standby roll position, an unwinding position, a pole roll automatic barcode tearing device, a pole roll automatic roll exchange device and a pole roll transport mechanism, wherein the standby roll position and the unwinding position are close to each other, and a suspension shaft for hanging pole rolls extends from the middle of the standby roll position and the unwinding position, and the pole roll automatic barcode tearing device is used to tear off the barcode of the coil head of the new pole roll on the standby roll position, and the pole roll automatic roll exchange device is used to connect the coil head of the new pole roll with the barcode torn off with the coil head of the old pole roll above the unwinding position, and the pole roll transport mechanism is movably arranged between the standby roll position and the unwinding position, and a transmission track for the pole roll transport mechanism to move is arranged below the standby roll position and the unwinding position. The multi-material roll pole piece unwinding device provided by the present invention can greatly reduce the workload of workers, improve processing efficiency, and make the "one person, multiple machines" control mode possible.

Description

Technical Field

[0001] The invention relates to the technical field of pole piece processing, and in particular to a multi-material pole piece unwinding device. Background Art

[0002] In the production process of secondary batteries, the electrode roll is usually supported on a transmission roller, and a certain pulling force is applied to the unrolled end of the electrode roll through the active roller, so that the electrode can continue to move in the direction of the active roller and participate in the subsequent processing process. However, in the process of changing the material after a electrode roll is used up, the staff is often required to manually change the material and then connect the joints of the two rolls together. The whole work process is time-consuming and inefficient, which seriously restricts the development of the "one person, multiple machines" control mode. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a multi-material pole piece unwinding device, which can improve the efficiency of the roll changing work during the pole piece processing process.

[0004] The technical solution of the present invention is as follows:

[0005] A multi-material roll pole piece unwinding device, comprising a standby roll position, an unwinding position, an automatic pole roll barcode tearing device, an automatic pole roll exchange device and a pole roll transporting mechanism, wherein the standby roll position and the unwinding position are close to each other, and a suspension shaft for hanging pole rolls extends from the middle of the standby roll position and the unwinding position, the pole roll automatic barcode tearing device is used to tear off the barcode of the coil head of the new pole roll on the standby roll position, and the pole roll automatic exchange device is used to connect the coil head of the new pole roll with the torn barcode with the coil head of the old pole roll above the unwinding position, and the pole roll transporting mechanism is movably arranged between the standby roll position and the unwinding position, and a transmission track for the pole roll transporting mechanism to move is arranged below the standby roll position and the unwinding position;

[0006] The automatic barcode tearing device for the pole roll comprises a first adhesive paper preparation mechanism, an adhesive paper rolling mechanism and an adhesive paper cutting mechanism, wherein the adhesive paper rolling mechanism is located above the preparation position, and the first adhesive paper preparation mechanism and the adhesive paper cutting mechanism are both close to the adhesive paper rolling mechanism, the first adhesive paper preparation mechanism provides adhesive paper for barcode sticking to the adhesive paper rolling mechanism, the adhesive paper rolling mechanism winds the adhesive paper for barcode sticking more than one circle with the adhesive surface facing outward, sticks the barcode of the coil head of the new pole roll by the adhesive surface of the adhesive paper for barcode sticking, and then cuts off the barcode part of the coil head of the new pole roll by the adhesive paper cutting mechanism;

[0007] The automatic pole roll exchange device includes a second adhesive paper preparation mechanism, an exchange belt assembly and a winding head clamping mechanism for the old pole roll. The winding head clamping mechanism for the old pole roll is located above the unwinding position and is used to clamp the winding head of the old pole roll. The second adhesive paper preparation mechanism is located between the preparation position and the unwinding position and provides the exchange belt assembly with adhesive paper for splicing. The exchange belt assembly is located on the pole roll conveying mechanism, and the winding head of the new pole roll is bonded to the winding head of the old pole roll through the adhesive paper for splicing.

[0008] Furthermore, the adhesive tape rolling mechanism includes a rotating arm, a clamping roll needle, a first servo motor, a second servo motor and a synchronous belt, the first servo motor is fixed on one side of the preparation roll position, one end of the rotating arm is rotatably connected to the rotating shaft of the first servo motor, the other end of the rotating arm is rotatably provided with the clamping roll needle, a tape clamping gap is provided in the middle of the clamping roll needle, pneumatic pistons are movably provided on both sides of the tape clamping gap, the second servo motor is fixed on the rotating arm, and the rotating shaft of the second servo motor is transmission-connected to the clamping roll needle through the synchronous belt.

[0009] Furthermore, the automatic barcode tearing device for rolling rolls also includes a waste adhesive paper collecting mechanism, which is located below the roll adhesive paper mechanism and is used to collect the waste adhesive paper with barcodes attached to it on the roll adhesive paper mechanism.

[0010] Furthermore, the exchange belt assembly includes a first adsorption block and a second adsorption block, a first rotating member and a second rotating member, a first cylinder and a second cylinder, a third cylinder and a fourth cylinder which are symmetrically arranged on the left and right, the first adsorption block and the second adsorption block are respectively fixed on the first rotating member and the second rotating member, the first adsorption block and the second adsorption block are close to each other to form a new and old pole roll winding head tape connection station, the opposite side of the first adsorption block and the second adsorption block is a first adhesive paper adsorption surface, the top surface of the first adsorption block and the second adsorption block is a second adhesive paper adsorption surface, the output shafts of the first cylinder and the second cylinder are respectively connected to the first rotating member and the second rotating member through a gear rack structure, thereby driving the first adsorption block and the second adsorption block to swing, the third cylinder and the fourth cylinder are respectively fixed on the first rotating member and the second rotating member, the output shafts of the third cylinder and the fourth cylinder are respectively connected to the first adsorption block and the second adsorption block through a connecting rod, thereby driving the second adhesive paper adsorption surfaces of the first adsorption block and the second adsorption block to rotate toward the direction of the new and old pole roll winding head tape connection station.

[0011] Furthermore, a screw stepping motor is provided on the pole roll transport mechanism, and the exchange belt assembly is movably connected to the screw of the screw stepping motor.

[0012] Furthermore, the multi-roll pole piece unwinding device also includes an automatic pole roll discharge device, which is arranged below the unwinding position and is used to collect the used pole rolls on the unwinding position.

[0013] Furthermore, the automatic discharge device for the pole roll material barrel includes a material barrel receiving mechanism and a material barrel collecting mechanism connected to each other. A material barrel pushing mechanism is arranged above the material barrel receiving mechanism. The material barrel pushing mechanism is located on the back of the unwinding position. The material barrel pushing mechanism pushes the used pole roll material barrel on the unwinding position from the hanging shaft to the material barrel receiving mechanism, and then rolls it to the material barrel collecting mechanism for material barrel collection.

[0014] Furthermore, the material receiving barrel mechanism includes a first material receiving plate, a second material receiving plate, a first driving device and a second driving device. The first material receiving plate is rotatably connected to one end of the second material receiving plate, the first driving device is fixed to the side of the second material receiving plate, the output shaft of the first driving device is connected to the first material receiving plate to drive the first material receiving plate to swing, the other end of the second material receiving plate is rotatably connected to the material barrel collecting mechanism, the second driving device is fixed to the material barrel collecting mechanism, and the second driving device is connected to the second material receiving plate through a connecting rod to drive the second material receiving plate to swing.

[0015] Furthermore, the barrel collecting mechanism includes a receiving plate and a third driving device, the rear end of the receiving plate is connected to the second receiving plate, and the third driving device is fixed to the rear end of the receiving plate to push the barrel rolled onto the receiving plate toward the front end of the receiving plate.

[0016] Furthermore, the barrel ejection mechanism includes a push plate and a fourth driving device, and the push plate is connected to the output shaft of the fourth driving device.

[0017] Compared with the prior art, the beneficial effect of the present invention is that: the present invention is provided with a standby roll position and an unwinding position, a new pole roll is placed on the standby roll position, and when the pole roll on the unwinding position is used up, the barcode of the coil head of the new pole roll is first torn off by the pole roll automatic barcode tearing device, and then the pole roll automatic exchange roll device is used to complete the coil head connection of the new and old pole rolls, and finally the new pole roll is placed in the unwinding position by the pole roll handling mechanism. Thus, the pole sheet material roll replacement and unwinding work is realized, and the multi-material roll pole sheet unwinding device provided by the present invention can greatly reduce the labor of workers, thereby improving the processing efficiency, and making the "one person, multiple machines" control mode possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A plan view of a multi-roll pole piece unwinding device provided by an embodiment of the present invention;

[0020] Figure 2 It is a planar structural diagram of the automatic barcode tearing device of the pole roll according to the embodiment of the present invention;

[0021] Figure 3 It is a planar structural diagram of the adhesive tape rolling mechanism according to an embodiment of the present invention;

[0022] Figure 4 It is a planar structural diagram of the pole roll automatic exchange roll device according to an embodiment of the present invention;

[0023] Figure 5 It is a side view of the pole coil transport mechanism according to an embodiment of the present invention;

[0024] Figure 6 It is a planar structural diagram of the exchange belt assembly according to an embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the action of the exchange belt assembly according to an embodiment of the present invention;

[0026] Figure 8 It is a planar structural diagram of the automatic discharge device for the coiled material drum according to an embodiment of the present invention;

[0027] Fig. 9 It is a side view of the automatic discharge device of the pole coil drum described in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration. Example

[0030] See also Figure 1The embodiment of the present invention provides a multi-material roll pole piece unwinding device, including a preparation roll position 5, an unwinding position 6, an automatic pole roll barcode tearing device 2, an automatic pole roll exchange roll device 3 and a pole roll conveying mechanism 4, the preparation roll position 5 and the unwinding position 6 are close to each other, and a suspension shaft 7 for hanging the pole roll extends from the middle of the preparation roll position 5 and the unwinding position 6. The automatic pole roll barcode tearing device 2 is used to tear off the barcode of the coil head of the new pole roll on the preparation roll position 5, and the pole roll conveying mechanism 4 is movably arranged between the preparation roll position 5 and the unwinding position 6, and a transmission track 8 for the pole roll conveying mechanism 4 to move is arranged below the preparation roll position 5 and the unwinding position 6, and also includes an automatic pole roll barrel discharge device 9 arranged below the unwinding position 6.

[0031] Working process: manually place multiple new pole rolls on the hanging shaft 7 of the preparation roll position 5 through the loading auxiliary trolley, the pole roll conveying mechanism 4 takes out the new pole roll on the preparation roll position 5 and sends it to the pole roll automatic barcode tearing area, the pole roll automatic barcode tearing device 2 tears off the barcode on the coil head of the new pole roll, and then the pole roll conveying mechanism 4 transports the pole roll with the barcode torn to the unwinding position 6, the pole roll automatic exchange roll device 3 connects the coil head of the new pole roll with the coil head of the old pole roll above the unwinding position 6, and then completes the unwinding operation of the pole roll. After the pole roll is used up, the pole roll barrel automatic discharge device 9 collects the used pole roll barrel on the unwinding position 6.

[0032] Specifically, Figure 2 , Figure 3As shown, the automatic barcode tearing device 2 includes a first adhesive paper preparation mechanism 21, an adhesive paper rolling mechanism 22 and an adhesive paper cutting mechanism 23. The adhesive paper rolling mechanism 23 is located above the preparation position 5. The first adhesive paper preparation mechanism 21 and the adhesive paper cutting mechanism 23 are both close to the adhesive paper rolling mechanism 22. The adhesive paper rolling mechanism 22 includes a rotating arm 221, a clamping needle 222, a first servo motor 223, a second servo motor 224 and a synchronous belt 225. The first servo motor 223 is fixed on one side of the preparation position 5. One end of the rotating arm 221 is rotatably connected to the rotating shaft of the first servo motor 223, and the other end of the rotating arm 221 is rotatably provided with a clamping needle 222. The clamping needle 222 is cylindrical, and a tape clamping gap 226 is provided in the middle of the clamping needle 222. Pneumatic pistons 227 are movably provided on both sides of the tape clamping gap 226. The second servo motor 224 is fixed on the rotating arm 221, and the rotating shaft of the second servo motor 224 is transmission-connected to the clamping needle 222 through a synchronous belt 225. Working principle: The first adhesive paper preparation mechanism 21 provides adhesive paper for barcode sticking to the adhesive paper rolling mechanism 22, and feeds the adhesive paper for barcode sticking into the adhesive paper clamping gap 226 of the clamping needle 222. The pneumatic piston 227 inside the adhesive paper clamping gap 226 presses the adhesive paper. The second servo motor 224 drives the clamping needle 222 to rotate more than one circle through the synchronous belt 225. The adhesive paper is arranged around the clamping needle 222 on the cylindrical surface of the clamping needle 222 to form an adhesive paper roll. At this time, the adhesive paper The sticky side of the paper faces outward, and then the first servo motor 223 drives the clamping needle 222 to swing to the surface of the new pole roll, and the adhesive tape of the clamping needle 222 sticks to the barcode on the head of the new pole roll. The second servo motor 224 drives the clamping needle 222 to rotate again (the rotation angle can be set) until the barcode is completely stuck to the clamping needle 222, and then the clamping needle 222 swings back to the initial position, and the adhesive tape cutting mechanism 23 extends out, and the pneumatic scissors cut the barcode part of the head of the roll.

[0033] Furthermore, the automatic barcode tearing device 2 also includes a waste adhesive paper collecting mechanism 24, which is located below the adhesive paper roll mechanism 22 and is used to collect the waste adhesive paper with barcodes on the adhesive paper roll mechanism 22. After the barcode part of the roll head is cut off, the clamping needle 222 swings to the waste adhesive paper collecting mechanism 24 again, the pneumatic piston 227 inside the adhesive paper clamping gap 226 is released, and the waste adhesive paper collecting mechanism 24 takes down the adhesive paper roll with barcodes through the pneumatic clamping claws at the top, and finally the clamping needle 222 returns to the initial position.

[0034] Specifically, Figure 4 , Figure 5As shown, the pole roll automatic exchange roll device 3 includes a second adhesive paper preparation mechanism 31, an exchange belt assembly 32 and an old pole roll head clamping mechanism 33. The old pole roll head clamping mechanism 33 is located above the unwinding position 6 and is used to clamp the head of the old pole roll. The second adhesive paper preparation mechanism 31 is located between the preparation position 5 and the unwinding position 6 and provides adhesive paper for the exchange belt assembly 32. The exchange belt assembly 32 is located on the pole roll conveying mechanism 4. The pole roll conveying mechanism 4 is provided with a screw stepper motor 41. The exchange belt assembly 32 is movably connected to the screw of the screw stepper motor 41. Figure 6 As shown, the exchange belt assembly 32 includes a first adsorption block 321 and a second adsorption block 322, a first rotating member 323 and a second rotating member 324, a first cylinder 325 and a second cylinder 326, a third cylinder 327 and a fourth cylinder 328 which are symmetrically arranged on the left and right. The first adsorption block 321 and the second adsorption block 322 are respectively fixed on the first rotating member 323 and the second rotating member 324. The first adsorption block 321 and the second adsorption block 322 are close to each other to form a new and old pole roll material head tape connection station. The opposite side of the first adsorption block 321 and the second adsorption block 322 is a first adhesive tape adsorption surface 329, and the top surface of the first adsorption block 321 and the second adsorption block 322 is a first adhesive tape adsorption surface 329. The second adhesive tape adsorption surface 330, the output shafts of the first cylinder 325 and the second cylinder 326 are connected to the first rotating member 323 and the second rotating member 324 through a gear rack structure, thereby driving the first adsorption block 321 and the second adsorption block 322 to swing, the third cylinder 327 and the fourth cylinder 328 are fixed to the first rotating member 323 and the second rotating member 324, respectively, and the output shafts of the third cylinder 327 and the fourth cylinder 328 are connected to the first adsorption block 321 and the second adsorption block 322 through a connecting rod, thereby driving the second adhesive tape adsorption surface 330 of the first adsorption block 321 and the second adsorption block 322 to rotate toward the direction of the new and old pole roll head tape connection station. Working principle: At the standby roll position, the exchange tape assembly 32 is used to Figure 6 The coil head 10 of the new pole roll is adsorbed in a manner. When the pole roll transport mechanism 4 moves from the roll preparation position 5 to the roll unwinding position 6, the second adhesive paper preparation mechanism 31 takes the adhesive paper, and the adhesive paper is adsorbed on the second adhesive paper adsorption surface 330 of the first adsorption block 321 / the second adsorption block 322. Figure 7 The schematic diagram of the action of adsorption on the second adsorption block 322 is as follows: after the pole roll transporting mechanism 4 transports the new pole roll to the unwinding position 6, the fourth cylinder 328 rotates the second adsorption block 322 counterclockwise by 90° through the connecting rod, and the second cylinder 326 swings the second adsorption block 322 by a certain angle through the gear rack structure, away from the first adsorption block 321, and then the screw stepper motor 41 drives the exchange belt assembly 32 through the screw rod to push the new pole roll to the unwinding position 6. At this time, the second cylinder 326 swings the second adsorption block 322 back to the first adsorption block 321, and adheres the coil head 10 of the new pole roll to the coil head 20 of the old pole roll through the adhesive tape, completing the process of automatic pole roll exchange.

[0035] Specifically, Figure 8 , Fig. 9 As shown, the automatic discharge device 9 for the extreme coiled material drum comprises a material receiving drum mechanism 91 and a material collecting mechanism 92 connected to each other, and a material pushing mechanism 93 is arranged above the material receiving drum mechanism 91, and the material pushing mechanism 93 is located at the back of the unwinding position 6. The material receiving drum mechanism 91 comprises a first material receiving plate 911, a second material receiving plate 912, a first driving device 913 and a second driving device 914, the first material receiving plate 911 is rotatably connected to one end of the second material receiving plate 912, the first driving device 913 is fixed to the side of the second material receiving plate 912, the output shaft of the first driving device 913 is connected to the first material receiving plate 911 to drive the first material receiving plate 911 to swing, the other end of the second material receiving plate 912 is rotatably connected to the material collecting mechanism 92, the second driving device 914 is fixed to the material collecting mechanism 92, and the second driving device 914 is connected to the second material receiving plate 912 through a connecting rod to drive the second material receiving plate 912 to swing. The barrel collecting mechanism 92 includes a receiving plate 921 and a third driving device 922. The rear end of the receiving plate 921 is connected to the second receiving plate 912. The third driving device 922 is fixed to the rear end of the receiving plate 921 to push the barrel rolled onto the receiving plate 921 to the front end of the receiving plate 921. The barrel pushing mechanism 93 includes a pushing plate 931 and a fourth driving device 932. The pushing plate 931 is connected to the output shaft of the fourth driving device 932. Working principle: The second driving device 914 drives the second material receiving plate 912 to swing upward to a certain angle through the connecting rod, and then the first driving device 913 drives the first material receiving plate 911 to tilt upward, and the fourth driving device 932 of the barrel pushing mechanism 93 drives the pushing plate 931 to push the used pole winding barrel on the unwinding position 6 from the hanging shaft 7 to the barrel receiving mechanism 91, and then roll it to the barrel collecting mechanism 92 for barrel collection, and the third driving device 922 of the barrel collecting mechanism 92 pushes the barrel to the front end of the receiving plate 921. When the number of barrels reaches a predetermined value, the barrel is taken away manually.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-material coil pole piece unwinding device, characterized in that: It includes a standby roll position, an unwinding position, an automatic pole roll barcode tearing device, an automatic pole roll exchange device and a pole roll transport mechanism, the standby roll position and the unwinding position are close to each other, a suspension shaft for hanging pole rolls extends from the middle of the standby roll position and the unwinding position, the pole roll automatic barcode tearing device is used to tear off the barcode of the coil head of the new pole roll on the standby roll position, the pole roll automatic exchange device is used to connect the coil head of the new pole roll with the barcode torn off with the coil head of the old pole roll above the unwinding position, the pole roll transport mechanism is movably arranged between the standby roll position and the unwinding position, and a transmission track for the pole roll transport mechanism to move is arranged below the standby roll position and the unwinding position; The automatic barcode tearing device for the pole roll comprises a first adhesive paper preparation mechanism, an adhesive paper rolling mechanism and an adhesive paper cutting mechanism, wherein the adhesive paper rolling mechanism is located above the preparation position, and the first adhesive paper preparation mechanism and the adhesive paper cutting mechanism are both close to the adhesive paper rolling mechanism, the first adhesive paper preparation mechanism provides adhesive paper for barcode sticking to the adhesive paper rolling mechanism, the adhesive paper rolling mechanism winds the adhesive paper for barcode sticking more than one circle with the adhesive surface facing outward, sticks the barcode of the coil head of the new pole roll by the adhesive surface of the adhesive paper for barcode sticking, and then cuts off the barcode part of the coil head of the new pole roll by the adhesive paper cutting mechanism; The adhesive tape rolling mechanism comprises a rotating arm, a clamping roll needle, a first servo motor, a second servo motor and a synchronous belt, wherein the first servo motor is fixed on one side of the preparation roll position, one end of the rotating arm is rotatably connected to the rotating shaft of the first servo motor, the other end of the rotating arm is rotatably provided with the clamping roll needle, the middle part of the clamping roll needle is provided with an adhesive tape clamping gap, and pneumatic pistons are movably provided on both sides of the adhesive tape clamping gap, the second servo motor is fixed on the rotating arm, and the rotating shaft of the second servo motor is transmission-connected to the clamping roll needle through the synchronous belt; The pole roll automatic exchange roll device comprises a second adhesive paper preparation mechanism, an exchange belt assembly and a coil head clamping mechanism for the old pole roll, wherein the coil head clamping mechanism for the old pole roll is located above the unwinding position and is used to clamp the coil head of the old pole roll, the second adhesive paper preparation mechanism is located between the preparation position and the unwinding position and provides the exchange belt assembly with adhesive paper for splicing, the exchange belt assembly is located on the pole roll conveying mechanism, and the coil head of the new pole roll is bonded to the coil head of the old pole roll through the adhesive paper for splicing; The belt exchange assembly includes a first adsorption block and a second adsorption block, a first rotating member and a second rotating member, a first cylinder and a second cylinder, a third cylinder and a fourth cylinder which are symmetrically arranged on the left and right, the first adsorption block and the second adsorption block are respectively fixed on the first rotating member and the second rotating member, the first adsorption block and the second adsorption block are close to each other to form a new and old pole roll winding head tape connection station, the first adsorption block and the second adsorption block have a first adhesive tape adsorption surface on the opposite side, the first adsorption block and the second adsorption block have a second adhesive tape adsorption surface on the top side, the output shafts of the first cylinder and the second cylinder are respectively connected to the first rotating member and the second rotating member through a gear rack structure, thereby driving the first adsorption block and the second adsorption block to swing, the third cylinder and the fourth cylinder are respectively fixed on the first rotating member and the second rotating member, the output shafts of the third cylinder and the fourth cylinder are respectively connected to the first adsorption block and the second adsorption block through a connecting rod, thereby driving the second adhesive tape adsorption surfaces of the first adsorption block and the second adsorption block to rotate in the direction of the new and old pole roll winding head tape connection station.

2. The multi-material roll pole piece unwinding device according to claim 1 is characterized in that: The automatic barcode tearing device for rolling rolls also includes a waste adhesive paper collecting mechanism, which is located below the roll adhesive paper mechanism and is used to collect the waste adhesive paper with barcodes attached to it.

3. The multi-material coil pole piece unwinding device according to claim 1, characterized in that: The pole roll conveying mechanism is provided with a screw stepping motor, and the exchange belt assembly is movably connected to the screw of the screw stepping motor.

4. The multi-material coil pole piece unwinding device according to claim 1, characterized in that: The multi-roll pole piece unwinding device also includes a pole roll automatic discharge device, which is arranged below the unwinding position and is used to collect the pole rolls that have been used up on the unwinding position.

5. The multi-material coil pole piece unwinding device according to claim 4, characterized in that: The automatic discharge device for the pole winding barrel includes a barrel receiving mechanism and a barrel collecting mechanism connected to each other. A barrel pushing mechanism is arranged above the barrel receiving mechanism. The barrel pushing mechanism is located at the back of the unwinding position. The barrel pushing mechanism pushes the used pole winding barrel on the unwinding position from the hanging shaft to the barrel receiving mechanism, and then rolls it to the barrel collecting mechanism for barrel collection.

6. The multi-material roll pole piece unwinding device according to claim 5, characterized in that: The material receiving barrel mechanism includes a first material receiving plate, a second material receiving plate, a first driving device and a second driving device. The first material receiving plate is rotatably connected to one end of the second material receiving plate, the first driving device is fixed to the side of the second material receiving plate, the output shaft of the first driving device is connected to the first material receiving plate to drive the first material receiving plate to swing, the other end of the second material receiving plate is rotatably connected to the material barrel collecting mechanism, the second driving device is fixed to the material barrel collecting mechanism, and the second driving device is connected to the second material receiving plate through a connecting rod to drive the second material receiving plate to swing.

7. The multi-material roll pole piece unwinding device according to claim 6, characterized in that: The barrel collecting mechanism includes a receiving plate and a third driving device. The rear end of the receiving plate is connected to the second receiving plate. The third driving device is fixed to the rear end of the receiving plate to push the barrel rolled onto the receiving plate toward the front end of the receiving plate.

8. The multi-material coil pole piece unwinding device according to claim 5, characterized in that: The barrel ejection mechanism comprises a pushing plate and a fourth driving device, and the pushing plate is connected to the output shaft of the fourth driving device.

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