阅读说明：本技术 一种放卷机构的第三次纠偏装置 (Third deviation correcting device of unwinding mechanism ) 是由 徐世晶 刘嘉兵 于 2020-05-25 设计创作，主要内容包括：本发明公开了一种放卷机构的第三次纠偏装置,属于一种模切机的放卷机构,其包括大板、通过框架导轨与大板滑移连接的放卷框架、设置于大板且用于驱动放卷框架沿框架导轨方向移动的驱动组件、与放卷框架连接的牵引装置,以及传感器；牵引装置用于夹持住极片并将极片送至带有模切底板的模切机构,模切底板设有与框架导轨平行的牵引导轨,牵引装置与牵引导轨滑移连接；传感器安装于模切底板,且位于极片的一侧；解决了由于过辊或缓存辊存在零件加工误差和装配误差,极片在进入模具前,极片的位置不能十分精准,导致成品极片在外观尺寸上存在偏差大,增加电池爆炸等风险的问题。(The invention discloses a third deviation rectifying device of an unwinding mechanism, belonging to an unwinding mechanism of a die-cutting machine, comprising a large plate, an unwinding frame connected with the large plate in a sliding manner through a frame guide rail, a driving assembly arranged on the large plate and used for driving the unwinding frame to move along the direction of the frame guide rail, a traction device connected with the unwinding frame and a sensor; the traction device is used for clamping the pole piece and conveying the pole piece to a die cutting mechanism with a die cutting bottom plate, the die cutting bottom plate is provided with a traction guide rail parallel to the frame guide rail, and the traction device is connected with the traction guide rail in a sliding manner; the sensor is arranged on the die cutting bottom plate and is positioned on one side of the pole piece; the problem of because cross the roller or buffer memory roller have part machining error and assembly error, the pole piece is before getting into the mould, and the position of pole piece can not very accurate, leads to finished product pole piece to have the deviation on appearance size big, increases risks such as battery explosion.)

1. A third deviation rectifying device of an unwinding mechanism is characterized by comprising a large plate (1), an unwinding frame (2) connected with the large plate (1) in a sliding mode through a frame guide rail (101), a driving assembly (3) arranged on the large plate (1) and used for driving the unwinding frame (2) to move along the direction of the frame guide rail (101), a traction device (4) connected with the unwinding frame (2), and a sensor (6);

the drawing device (4) is used for clamping the pole piece (5) and sending the pole piece (5) to a die cutting mechanism (7) with a die cutting bottom plate (701), the die cutting bottom plate (701) is provided with a drawing guide rail (702) parallel to the frame guide rail (101), and the drawing device (4) is connected with the drawing guide rail (702) in a sliding mode.

2. The third deviation rectifying device of the unwinding mechanism as claimed in claim 1, wherein the driving assembly (3) comprises a driving motor (301), a lead screw (303) connected to the driving motor (301) through a coupling (302), and a connecting member (304) screwed to the lead screw (303) and fixedly connected to the unwinding frame (2);

one end of the screw rod (303) far away from the driving motor (301) is rotatably connected to a movable end seat (305).

3. The third deviation rectifying device of the unwinding mechanism according to claim 1, wherein the pulling device (4) comprises a pulling mounting frame (401), a pulling roller (402) rotatably connected to the pulling mounting frame (401), a rubber roller (403) arranged above the pulling roller (402), and a pulling motor (404) for driving the pulling roller (402);

the traction device (4) is fixedly connected with the unreeling frame (2) through an L-shaped connecting block (405);

the pole piece (5) is clamped by the rubber roller (403) and the traction roller (402) together, and the pole piece (5) is conveyed to the die cutting mechanism (7).

4. The third deviation rectifying device of the unwinding mechanism as claimed in claim 3, wherein the traction mounting frame (401) is provided with a first synchronizing wheel (406) and a second synchronizing wheel (407), the output shaft of the traction motor (404) is connected with the first synchronizing wheel (406) through a speed reducer set (408), the end of the traction roller (402) is connected with the second synchronizing wheel (407), and the first synchronizing wheel (406) and the second synchronizing wheel (407) rotate synchronously through a traction belt (409).

5. The third deviation rectifying device of unwinding mechanism as claimed in claim 3, wherein the pulling mounting frame (401) is provided with a pulling cylinder (410), a mounting plate (411) and a longitudinal rail (412), the mounting plate (411) is slidably connected to the longitudinal rail (412), both ends of the rubber roller (403) are rotatably connected to the mounting plate (411), the pulling cylinder (410) drives the mounting plate (411) to move along the longitudinal rail (412) to drive the rubber roller (403) to approach or leave the pulling roller (402).

6. The third deviation rectifying device of unwinding mechanism according to claim 3, wherein the pulling mounting frame (401) is provided with a transition plate (413), the transition plate (413) is located at one side of the pulling roll (402) close to the die cutting mechanism (7), and the upper surface of the transition plate (413) is tangent to the highest position of the pulling roll (402) or is 1-3cm lower than the highest position of the pulling roll (402).

7. The third deviation rectifying device of unwinding mechanism of claim 1, wherein the sensor (6) has a U-shaped detection opening (601), the detection opening (601) is provided with a strip-shaped sensing bit (602), and when one side of the pole piece (5) completely covers the sensing bit (602) or completely separates from the sensing bit (602), the sensor (6) transmits the forward electrical signal and the backward electrical signal to the driving assembly (3), respectively.

8. The third deviation rectifying device of the unwinding mechanism as claimed in claim 1, wherein the die cutting bottom plate (701) is provided with an adjusting track (703) formed by three sliding bars, the adjusting track (703) is slidably connected with an adjusting block (704), and the sensor (6) is installed on the adjusting block (704).

9. The third deviation rectifying device of the unwinding mechanism according to claim 1, wherein the unwinding frame (2) is provided with a CCD light source (201), the CCD light source (201) is located in front of the traction device (4), and the CCD light source (201) is used for eliminating the pole pieces (5) with defects.

10. The third deviation rectifying device of the unwinding mechanism according to claim 1, wherein there are four frame guide rails (101), two frame guide rails are respectively disposed on two sides of the driving assembly (3), each frame guide rail (101) is connected with two sliding blocks (102) in a sliding manner, the sliding blocks (102) are fixedly connected to the unwinding frame (2), a plurality of L-shaped supporting blocks (103) are further disposed at the bottom of the unwinding frame (2), and lower ends of the supporting blocks (103) abut against the upper surface of the large plate (1).

Technical Field

The invention relates to an unwinding mechanism of a die cutting machine, in particular to a third deviation correcting device of the unwinding mechanism.

Background

At present, a pole piece die cutting machine generally comprises an unwinding mechanism and a die cutting mechanism, wherein the unwinding mechanism sends a pole piece to the die cutting mechanism at a certain speed to perform die cutting.

The unwinding mechanism comprises a plurality of necessary devices such as a tension adjusting device and a buffering device, and the pole piece passes through the devices and then enters the die cutting mechanism to be radially deviated along the direction of the unwinding roller, so that a deviation correcting device is required to be added in the unwinding mechanism to correct the deviation of the pole piece.

Traditional cross cutting machine adopts the second grade mechanism of rectifying, carry out the first deviation to the pole piece after the inflatable shaft unreels promptly, and meso position department adopts to advance to rectify and rectifies and carry out the second time, the pole piece is not directly got into the mould and is carried out the cross cutting after rectifying for the second time, but through a series of roller or cache roller reentrant cross the cross cutting machine, because cross roller or cache roller and have part machining error and assembly error, the pole piece is before getting into the mould, the position of pole piece can not be very accurate, it is big to lead to finished product pole piece to have the deviation on appearance size, increase risks such as battery explosion, consequently, remain to improve.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a third deviation rectifying device of an unwinding mechanism, which is used for solving the technical problem.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a third deviation correcting device of an unwinding mechanism comprises a large plate, an unwinding frame connected with the large plate in a sliding mode through a frame guide rail, a driving assembly arranged on the large plate and used for driving the unwinding frame to move along the direction of the frame guide rail, a traction device connected with the unwinding frame and a sensor;

the traction device is used for clamping the pole piece and conveying the pole piece to a die cutting mechanism with a die cutting bottom plate, the die cutting bottom plate is provided with a traction guide rail parallel to the frame guide rail, and the traction device is connected with the traction guide rail in a sliding mode.

By adopting the technical scheme, the positions of the large plate and the die cutting mechanism are kept still, when the edge position of the pole piece completely enters the sensor, the sensor sends a signal to the driving assembly, or sends a signal to the driving assembly through the PLC, the driving assembly drives the screw rod to rotate, so that the unreeling frame moves towards the direction far away from the sensor along the direction of the frame guide rail, and the unreeling frame drives the traction device to move together, so that the traction device simultaneously moves towards the direction far away from the sensor, and similarly, when the edge position of the pole piece cannot be sensed by the sensor, the unreeling frame and the traction device integrally move towards the direction close to the sensor, so that the pole piece can be adjusted to the standard position no matter which direction the pole piece deviates;

according to the invention, a signal is given by using a sensor, the driving assembly controls the unreeling frame and the traction device to integrally move, compared with the traditional deviation correcting device, on one hand, the pulling of the pole piece is not caused, and the influence of the deviation correcting device on the quality of the pole piece is avoided, on the other hand, after the deviation is corrected by the third deviation correcting device, the pole piece is immediately conveyed to a die cutting mechanism for die cutting, and the secondary deviation of the pole piece after passing through other devices is avoided;

in addition, the traditional deviation correcting device has delay, namely the deviation of the pole piece entering the die cutting mechanism is found, the traditional deviation correcting device corrects the deviation, but the deviation correcting device and the die cutting mechanism have a pole piece which cannot be corrected in time.

Preferably, the driving assembly comprises a driving motor, a screw rod connected with the driving motor through a coupler, and a connecting piece which is in threaded connection with the screw rod and is fixedly connected with the unreeling frame;

and one end of the screw rod, which is far away from the driving motor, is rotatably connected to a movable end seat.

By adopting the technical scheme, after the sensor gives an electric signal to the driving motor according to the position of the pole piece, the driving motor drives the unreeling frame to move along the frame guide rail, so that the unreeling frame and the traction device integrally drive the pole piece to move.

Preferably, the traction device comprises a traction mounting frame, a traction roller rotationally connected to the traction mounting frame, a rubber roller arranged above the traction roller, and a traction motor for driving the traction roller;

the traction device is fixedly connected with the unreeling frame through an L-shaped connecting block;

the rubber roller and the traction roller clamp the pole piece together and convey the pole piece to the die cutting mechanism.

By adopting the technical scheme, the traction device has the effect that the pole piece is clamped by the rubber roller and the traction roller together, when the unreeling frame moves, the traction device can drive the pole piece to move together, and if the clamping force of the traction device is not available, the pole piece of the unreeling frame is probably separated from the roller shaft on the unreeling frame in the moving process of the unreeling frame.

Preferably, the traction mounting frame is provided with a first synchronizing wheel and a second synchronizing wheel, an output shaft of the traction motor is connected with the first synchronizing wheel through a speed reducer unit, the end part of the traction roller is connected with the second synchronizing wheel, and the first synchronizing wheel and the second synchronizing wheel synchronously rotate through a traction belt.

By adopting the technical scheme, the output direction of the traction motor can be changed by adopting the first synchronizing wheel and the second synchronizing wheel, so that the installation position of the traction motor is positioned in the traction installation frame, the installation space required by elements is further reduced, in addition, under the condition that the output power of the traction motor is not changed, the external traction motor is a servo motor, the rotating speed and the direction can be controlled through the Plc, and the traction rotating speed is adjusted, namely the speed of the pole piece entering the die cutting mechanism is adjusted.

Preferably, the traction mounting frame is provided with a traction cylinder, a mounting plate and a longitudinal guide rail, the mounting plate is connected with the longitudinal guide rail in a sliding mode, the two ends of the rubber roller are connected to the mounting plate in a rotating mode, the traction cylinder drives the mounting plate to move along the direction of the longitudinal guide rail, and the rubber roller is driven to be close to or far away from the traction roller.

Through adopting above-mentioned technical scheme, the cylinder that draws can drive mounting panel and rubber roll and move in the direction of longitudinal rail, and then changes the distance between rubber roll and the carry over pinch rolls, through adjusting the stroke of drawing the cylinder, makes the rubber roll just support and press in the carry over pinch rolls, when the pole piece passes through between rubber roll and the carry over pinch rolls, just can give a clamping-force to the pole piece.

Preferably, the traction mounting frame is provided with a transition plate, the transition plate is positioned on one side of the traction roller close to the die cutting mechanism, and the upper surface of the transition plate is tangent to the highest position of the traction roller or is 1-3cm lower than the highest position of the traction roller.

By adopting the technical scheme, the pole piece can lose the clamping force after passing through the traction device, and the transition plate ensures that the pole piece is conveyed into the die-cutting mechanism to be straight, namely, the pole piece accurately enters the die-cutting position; the upper surface of the transition plate is tangent to the highest position of the traction roller to seamlessly receive the pole piece, and the upper surface of the transition plate is 1-3cm lower than the highest position of the traction roller to avoid pole piece bending caused by the fact that the transition plate is slightly higher than the traction roller due to errors during installation.

Preferably, the sensor is provided with a U-shaped detection opening, a strip type induction position is arranged in the detection opening, and when one side of the pole piece completely covers the induction position or completely breaks away from the induction position, the sensor respectively transmits a forward electric signal and a reverse electric signal to the driving assembly.

By adopting the technical scheme, the sensor is arranged on one side, close to the unreeling frame, of the pole piece, when the pole piece deflects towards the sensor, one side of the pole piece can completely enter the detection opening of the sensor and completely shield the sensing position, the sensor gives a positive electric signal to the driving assembly at the moment, the driving assembly drives the unreeling frame and the traction device to move together, the pole piece is located at a position where the sensing position is partially shielded, and the position is the standard position.

Preferably, the die cutting bottom plate is provided with an adjusting track consisting of three sliding rods, the adjusting track is connected with an adjusting block in a sliding mode, and the sensor is installed on the adjusting block.

By adopting the technical scheme, the position of the sensor can be correspondingly adjusted by a worker according to the position of the die-cutting mechanism which is actually installed by utilizing the adjusting block and the adjusting track.

Preferably, the unreeling frame is provided with a CCD light source, the CCD light source is located at the front position of the traction device, and the CCD light source is used for eliminating pole pieces with defects.

By adopting the technical scheme, the pole pieces need to pass through a tension adjusting device, a buffering device and the like on the unreeling frame, the existing defective pole pieces are inevitable, and the CCD light source can remove the defective pole pieces before the pole pieces enter the traction device.

Preferably, the frame guide rails are four in number and two in number on two sides of the driving assembly, each frame guide rail is connected with two sliding blocks in a sliding mode, the sliding blocks are fixedly connected with the unreeling frame, a plurality of supporting blocks in an L-shaped arrangement are further arranged at the bottom of the unreeling frame, and the lower ends of the supporting blocks are abutted to the upper surface of the large plate.

By adopting the technical scheme, the load of the unreeling frame can be shared by adopting four frame guide rails, and the connection relation between the unreeling frame and the frame guide rails is strengthened by adopting eight sliding blocks in total; in the transportation process, two edges of the supporting block are respectively fixed with the large plate and the unreeling frame so as to share the gravity borne by the frame guide rail.

The invention has the beneficial effects that:

1. the driving assembly controls the unreeling frame and the traction device to integrally move, compared with a traditional deviation correcting device, on one hand, the pole piece cannot be dragged, and the influence of the deviation correcting device on the quality of the pole piece is avoided, on the other hand, after the deviation is corrected by the third deviation correcting device, the pole piece is immediately conveyed to a die cutting mechanism to be subjected to die cutting work, and the secondary deviation of the pole piece after passing through other devices is avoided;

2. the traditional deviation correcting device has delay, namely the deviation of the pole piece entering the die cutting mechanism is found, the traditional deviation correcting device corrects the deviation, but the deviation correcting device and the die cutting mechanism have a pole piece section which can not be corrected in time;

3. the traction device has the advantages that the pole piece is clamped by the rubber roll and the traction roll together, the pole piece can be driven by the traction device to move together with the unwinding frame when the unwinding frame moves, and if the clamping force of the traction device is not available, the pole piece of the unwinding frame is probably separated from the roller shaft on the unwinding frame in the moving process of the unwinding frame.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

fig. 3 is a schematic perspective view of a part of the unreeling frame and a part of the unreeling frame hidden on the basis of fig. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the structure of FIG. 3 from another perspective;

FIG. 6 is a schematic structural diagram of a driving assembly according to the present invention;

FIG. 7 is a schematic view of the construction of the traction device of the present invention;

fig. 8 is a schematic structural view of fig. 7 from another view angle.

The reference numerals in the figures are explained below:

1. a large plate; 101. a frame rail; 102. a slider; 103. a support block;

2. unwinding the frame; 201. a CCD light source;

3. a drive assembly; 301. a drive motor; 302. a coupling; 303. a screw rod; 304. a connecting member; 305. moving the end seat;

4. a traction device; 401. a traction mounting rack; 402. a traction roller; 403. a rubber roller; 404. a traction motor; 405. connecting blocks; 406. a first synchronizing wheel; 407. a second synchronizing wheel; 408. a speed reduction unit; 409. a traction belt; 410. a traction cylinder; 411. mounting a plate; 412. a longitudinal guide rail; 413. a transition plate;

5. pole pieces;

6. a sensor; 601. detecting the opening; 602. sensing a bit;

7. a die-cutting mechanism; 701. die cutting the bottom plate; 702. a traction guide rail; 703. adjusting the track; 704. and a regulating block.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

As shown in fig. 1 to 5, the third deviation rectifying device of the unwinding mechanism comprises a large plate 1 which is horizontal and fixed in position, an unwinding frame 2 which is connected with the large plate 1 through a frame guide rail 101 in a sliding manner, a driving assembly 3 which is arranged on the large plate 1 and used for driving the unwinding frame 2 to move along the direction of the frame guide rail 101, a traction device 4 connected with the unwinding frame 2, and a sensor 6; the traction device 4 is used for clamping the pole piece 5 and sending the pole piece 5 to a die cutting mechanism 7 with a die cutting bottom plate 701, the die cutting bottom plate 701 is provided with a traction guide rail 702 parallel to the frame guide rail 101, and the traction device 4 is connected with the traction guide rail 702 in a sliding manner; the sensor 6 is mounted on the die-cutting base plate 701 and is located on one side of the pole piece 5.

The die cutting mechanism 7 itself does not fall within the scope of the third time deviation correcting device, but the traction guide rail 702 and the sensor 6 of the third time deviation correcting device need to be installed on the die cutting base plate 701 of the die cutting mechanism 7.

The specific working principle is as follows: the positions of the large plate 1, the die cutting mechanism 7 and the die cutting base plate 701 are kept immovable, when the edge position of the pole piece 5 completely enters the sensor 6, the sensor 6 sends a signal to the driving assembly 3, or sends a signal to the driving assembly 3 through the PLC, the driving assembly 3 drives the lead screw 303 to rotate, the unreeling frame 2 moves towards the direction far away from the sensor 6 along the direction of the frame guide rail 101, the unreeling frame 2 drives the traction device 4 to move together, the traction device 4 simultaneously moves towards the direction far away from the sensor 6, and similarly, when the edge position of the pole piece 5 cannot be sensed by the sensor 6, the unreeling frame 2 and the traction device 4 integrally move towards the direction close to the sensor 6, so that the standard position can be adjusted no matter which direction the pole piece 5 deviates towards.

After unreeling such as tension adjusting device, buffer etc. on the frame 2, can hardly be out and have defective pole piece 5 now, for solving this problem, unreel the frame 2 and be equipped with CCD light source 201, CCD light source 201 is located draw gear 4's preceding position, and CCD light source 201 is used for rejecting the pole piece 5 that has the defect.

The pole pieces 5 need to pass through a tension adjusting device, a buffering device and the like on the unreeling frame 2, so that the existing defective pole pieces 5 are inevitable, and the CCD light source 201 can remove the defective pole pieces 5 before the pole pieces 5 enter the traction device 4.

In order to enhance the supporting strength of the unwinding frame 2 on the large board 1 and the smoothness of the sliding of the unwinding frame 2, the present invention is further configured as follows.

Since the unwinding frame 2 normally blocks the lower frame rail 101, a portion of the unwinding frame 2 is hidden in fig. 3 and 5 to reveal the lower frame rail 101, and it can be inferred that the frame rail 101 is engaged with the hidden portion of the unwinding frame 2.

Frame guide 101 is equipped with four, and is located drive assembly 3 both sides and respectively sets up two, and every frame guide 101 all slides and is connected with two sliders 102, slider 102 with unreel frame 2 fixed connection, unreel frame 2 bottom and still be equipped with a plurality of supporting shoes 103 that are the setting of L type, the lower extreme of supporting shoe 103 supports in the upper surface of big board 1.

The four frame guide rails 101 can share the load of the unreeling frame 2, and the connection relationship between the unreeling frame 2 and the frame guide rails 101 is strengthened by eight sliding blocks 102 in total; in the transportation process, two edges of the supporting block 103 are respectively fixed with the large plate 1 and the unreeling frame 2 so as to share the gravity borne by the frame guide rail 101.

As shown in fig. 4 and 5, the sensor 6 further has a U-shaped detection opening 601, a strip-shaped sensing bit 602 is disposed in the detection opening 601, and when one side of the pole piece 5 completely blocks the sensing bit 602 or completely separates from the sensing bit 602, the sensor 6 respectively transmits a forward electric signal and a reverse electric signal to the driving assembly 3.

The sensor 6 is arranged on one side of the pole piece 5 close to the unreeling frame 2, when the pole piece 5 deflects towards the sensor 6, one side of the pole piece 5 can completely enter the detection opening 601 of the sensor 6 and completely shield the sensing position 602, at the moment, the sensor 6 gives a positive electric signal to the driving assembly 3, the driving assembly 3 drives the unreeling frame 2 and the traction device 4 to move together, so that the pole piece 5 is located at a position partially shielding the sensing position 602, and the position is a standard position.

In order to enable the position of the sensor 6 to move along with the position of the die-cutting mechanism 7, the die-cutting bottom plate 701 is provided with an adjusting track 703 formed by three sliding rods, the adjusting track 703 is connected with an adjusting block 704 in a sliding mode, and the sensor 6 is installed on the adjusting block 704. With the adjustment block 704 and the adjustment track 703, the worker can adjust the position of the sensor 6 accordingly according to the position of the die cutting mechanism 7 actually installed.

In order to provide a more specific structure of the driving assembly 3, so that the driving assembly 3 can drive the unwinding frame, the present invention further provides the following.

As shown in fig. 6, the driving assembly 3 includes a driving motor 301, a lead screw 303 connected to the driving motor 301 through a coupling 302, and a connecting member 304 screwed to the lead screw 303 and fixedly connected to the unwinding frame 2; the end of the screw 303 remote from the driving motor 301 is rotatably connected to a movable end block 305.

After the sensor 6 gives an electric signal to the driving motor 301 according to the position of the pole piece 5, the driving motor 301 drives the unreeling frame 2 to move along the frame guide rail 101, so that the unreeling frame 2 and the traction device 4 integrally carry the pole piece 5 to move.

In order to provide the traction device 4 with the function of clamping the pole piece 5, the invention is further configured as follows.

As shown in fig. 7 and 8, the traction device 4 includes a traction mounting frame 401, a traction roller 402 rotatably connected to the traction mounting frame 401, a rubber roller 403 arranged above the traction roller 402, and a traction motor 404 for driving the traction roller 402; the traction device 4 is fixedly connected with the unreeling frame 2 through an L-shaped connecting block 405; the glue roller 403 and the traction roller 402 together grip the pole piece 5 and feed the pole piece 5 to the die-cutting mechanism 7.

The traction device 4 is used for clamping the pole piece 5 by using the rubber roller 403 and the traction roller 402 together, when the pole piece 5 moves along with the unreeling frame 2, the traction device 4 can drive the pole piece 5 to move together, and if the clamping force of the traction device 4 is not provided, the pole piece 5 of the unreeling frame 2 is probably separated from the roller shaft on the unreeling frame 2 in the moving process of the unreeling frame 2.

In addition, in order to enable the pole piece 5 between the traction device 4 and the die cutting mechanism 7 to be relatively gently adjusted in position, the connecting block 405 may be replaced with an elastic buffer.

In order to reduce the installation space required for the pulling device 4 and in order to be able to adjust the rotational speed of the pulling roll 402, the invention is further configured as follows.

The traction mounting frame 401 is provided with a first synchronizing wheel 406 and a second synchronizing wheel 407, an output shaft of the traction motor 404 is connected with the first synchronizing wheel 406 through a speed reducer unit 408, the end part of the traction roller 402 is connected with the second synchronizing wheel 407, and the first synchronizing wheel 406 and the second synchronizing wheel 407 synchronously rotate through a traction belt 409.

The output direction of the traction motor 404 can be changed by adopting the first synchronous wheel 406 and the second synchronous wheel 407, so that the installation position of the traction motor 404 is positioned in the traction installation frame 401, the installation space required by elements is further reduced, in addition, under the condition that the output power of the traction motor 404 is not changed, the external traction motor 404 is a servo motor, the rotating speed and the direction can be controlled through Plc, and the traction rotating speed is adjusted, namely the speed of the pole piece entering the die cutting mechanism is adjusted.

The traction mounting frame 401 is provided with a traction cylinder 410, a mounting plate 411 and a longitudinal guide rail 412, the mounting plate 411 is connected with the longitudinal guide rail 412 in a sliding mode, two ends of the rubber roller 403 are connected to the mounting plate 411 in a rotating mode, the traction cylinder 410 drives the mounting plate 411 to move along the direction of the longitudinal guide rail 412, and the rubber roller 403 is driven to be close to or far away from the traction roller 402.

The traction cylinder 410 can drive the mounting plate 411 and the rubber roller 403 to move in the direction of the longitudinal guide rail 412, so that the distance between the rubber roller 403 and the traction roller 402 is changed, the rubber roller 403 is just pressed against the traction roller 402 by adjusting the stroke of the traction cylinder 410, and when the pole piece 5 passes through the space between the rubber roller 403 and the traction roller 402, a clamping force is applied to the pole piece 5.

The drawing mounting frame 401 is provided with a transition plate 413, the transition plate 413 is positioned on one side of the drawing roller 402 close to the die cutting mechanism 7, and the upper surface of the transition plate 413 is tangent to the highest position of the drawing roller 402 or is 1-3cm lower than the highest position of the drawing roller 402.

The pole piece 5 loses the clamping force after passing through the traction device 4, and the transition plate 413 ensures that the pole piece 5 is conveyed into the die-cutting mechanism 7 to be straight, namely accurately enters the die-cutting position; the upper surface of the transition plate 413 is tangent to the highest position of the drawing roller 402 to seamlessly receive the pole piece 5, and the upper surface of the transition plate 413 is 1-3cm lower than the highest position of the drawing roller 402 to avoid the pole piece 5 from being bent due to the fact that the transition plate 413 is slightly higher than the drawing roller 402 due to errors in installation.

In summary, in the invention, the sensor 6 is used for giving a signal, the driving assembly 3 controls the unreeling frame 2 and the traction device 4 to integrally move, compared with the traditional deviation correcting device, on one hand, the pole piece 5 cannot be dragged, and the influence of the deviation correcting device on the quality of the pole piece 5 is avoided, on the other hand, after the deviation is corrected by the third deviation correcting device, the pole piece 5 is immediately sent to the die cutting mechanism for die cutting, and the secondary deviation of the pole piece 5 after passing through other devices is avoided.

In addition, the traditional deviation correcting device has a delay property, namely, the deviation of the pole piece 5 entering the die cutting mechanism 7 is found, the traditional deviation correcting device corrects the deviation, but the deviation correcting device and the die cutting mechanism 7 have a section of the pole piece 5 which cannot be corrected in time.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.