CN218769692U - Winding machine - Google Patents

Abstract

The utility model belongs to lithium battery manufacturing equipment field specifically provides a winder. The utility model discloses aim at solving the problem that current winder is difficult for detecting whether the pole piece skids. Therefore, the winding machine of the utility model comprises a control device, a feeding device, an induction device, a mechanical operation device and an alarm device, wherein the feeding device, the induction device, the mechanical operation device and the alarm device are in communication connection with the control device; the feeding device is arranged at the upstream of the mechanical operation device and is used for conveying the pole pieces and feeding back the actual running distance to the control device; a plurality of appearance marks which are uniformly distributed along the length direction of the pole piece are arranged on the pole piece; the sensing device is arranged to sense the appearance mark; the control device is set to be capable of judging whether the feeding device slips or not when receiving the signal sent by the sensing device. The control device judges whether the slipping condition occurs or not through the signal sent by the sensing device, and then controls the alarm device to give an alarm, so that the problem that the pole piece slipping of the existing winding machine is not easy to detect is solved.

Description

Winding machine

Technical Field

The utility model belongs to lithium battery manufacturing equipment field specifically provides a winder.

Background

In the existing lithium battery preparation, a winding machine is widely used due to high winding speed, high production efficiency and stable products. After the feeding pinch roller of the winding machine repeatedly transmits pole pieces for a long time, the surface of the roller is abraded to generate gaps or is polluted by graphite/silicon powder of the pole pieces, so that the friction force is reduced, the phenomenon of slipping between the pole pieces and the feeding pinch roller is easy to occur, the pole pieces slip can cause the deviation of the welding position of a pole lug, the deviation of the sticking position of a protective tape or the change of the cutting length of the pole pieces, and the safety performance of a battery is reduced.

The common treatment is to increase the friction of the surface structure of the roller. However, after long-time use, wear of the roller is still unavoidable, and whether the pole piece slips or not is not easily detected by the existing winding machine when the pole piece is conveyed, and the phenomenon that the pole piece slips is easily found after more unqualified products appear, so that the rejection rate of the product is increased and the production cost is increased.

Accordingly, there is a need in the art for a winder that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving above-mentioned technical problem, be the technical problem who determines current pole piece in transportation process difficult detection whether skids promptly. The utility model provides a winding machine, which comprises a control device, a feeding device, an induction device, a mechanical operation device and an alarm device, wherein the feeding device, the induction device, the mechanical operation device and the alarm device are in communication connection with the control device; the feeding device is arranged at the upstream of the mechanical operation device, and the feeding device is arranged to convey pole pieces to the mechanical operation device for processing operation and feed back actual operation distance to the control device; a plurality of appearance marks which are uniformly distributed along the length direction of the pole piece are arranged on the pole piece; the sensing device is arranged at the upstream of the mechanical working device, and the sensing device is arranged to sense the appearance mark and send a signal to the control device when the appearance mark is sensed; the control device is set to be capable of judging whether the feeding device slips or not when receiving the signal sent by the sensing device; the alarm device is set to send out alarm prompt under the condition that the feeding device slips.

Through the arrangement, the feeding device feeds back the actual running distance to the control device when conveying the pole pieces, the sensing device which is in communication connection with the control device is additionally arranged at the upstream of the mechanical operation device and is used for sensing the pole pieces and sending signals to the control device when sensing the appearance marks of the pole pieces, so that the control device can judge whether the feeding device slips or not by comparing the actual running distance of the feeding device with the theoretical running distance when receiving the signals sent by the sensing device, and controls the alarm device to give an alarm when the slipping occurs, so that a worker can check and maintain the feeding device in time, and a large number of defective products are prevented; thereby improving the qualification rate of the product and reducing the production cost.

In a preferred technical scheme of the winding machine, the feeding device comprises a feeding wheel set, a servo motor and an encoder, and the servo motor and the encoder are both in communication connection with the control device; servo motor with pay-off wheelset drive connection and can drive pay-off wheelset rotates in order to pass through pay-off wheelset will the pole piece is carried mechanical operation device, the encoder sets up servo motor is last and can detect servo motor's actual working distance and can with actual working distance converts digital signal into and transmits for controlling means.

Through such setting, drive the feeding wheel group through servo motor and detect servo motor's actual working distance and convert this actual working distance into digital signal transmission for controlling means through the encoder promptly, simple structure, with low costs, control are accurate.

In a preferred technical scheme of the winding machine, the feeding wheel set comprises a driving wheel and a driven wheel, a gap is formed between the driving wheel and the driven wheel, and the servo motor is in driving connection with the driving wheel and can drive the driving wheel to rotate so as to convey the pole piece located in the gap to the mechanical operation device.

In a preferred technical solution of the above winding machine, the sensing device is a photoelectric sensor, the appearance mark is a bright and dark mark, and the photoelectric sensor can recognize the bright and dark mark.

In the preferable technical scheme of above-mentioned winder, induction system is including the relative laser generator and the laser receiver that set up, laser generator with laser receiver is located respectively the both sides of pole piece, the outward appearance sign is the Mark hole, laser receiver can receive laser generator sends and pass the laser signal in Mark hole.

In a preferred embodiment of the winding machine, the mechanical operation device is a tab welding device, a protective tape sticking device, or a pole piece cutting device.

In the preferable technical scheme of the winding machine, the alarm device is a light alarm device, a sound alarm device or a sound and light alarm device.

In a preferred technical solution of the above winding machine, the winding machine further includes a roller passing device disposed between the feeding device and the mechanical working device, and the roller passing device is configured to change a moving direction of the pole piece conveyed from the feeding device so that the pole piece smoothly moves toward the mechanical working device.

In a preferred technical solution of the above winding machine, the winding machine further includes a deviation correcting device disposed between the feeding device and the mechanical working device.

In a preferred embodiment of the above winder, the winder further includes a tension control device disposed between the feeding device and the mechanical working device.

Drawings

The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present invention. Wherein:

fig. 1 is a schematic view of the overall structure of the winding machine of the present invention.

Fig. 2 is a schematic structural view of the winding machine of the present invention when the mechanical operation device is a pole piece cutting device.

Fig. 3 is a schematic diagram of the principle of the control device in the winding machine of the present invention when determining whether the pole piece slips.

Reference numerals are as follows:

1. a feeding wheel set; 11. a driving wheel; 12. a driven wheel; 13. performing crack filling;

2. an induction device; 21. a laser generator; 22 a laser receiver;

3. a mechanical working device; 31. a pole piece cutting device;

4. pole pieces; 4A, appearance identification; 41. a first periodic pole piece; 42. pole pieces in a second period; 43. a third periodic pole piece;

5. a needle winding control device;

6. and (4) a roller passing device.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

It is to be noted that in the description of the present invention, the terms "upstream", "downstream", and the like, which indicate a direction or positional relationship, are based on the direction or positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the related devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In addition, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, the winding machine of the present invention includes a control device (not shown in the figure), and a feeding device, a sensing device 2, a mechanical operation device 3 and an alarm device (not shown in the figure) which are in communication connection with the control device.

Wherein the feeding device is arranged at the upstream of the mechanical operation device 3, and the feeding device is arranged to convey the pole piece 4 to the mechanical operation device 3 for processing operation and feed back the actual running distance to the control device.

A plurality of appearance marks 4A which are uniformly distributed along the length direction of the pole piece 4 are arranged on the pole piece 4; the sensing means 2 are arranged upstream of the mechanical working device 3, the sensing means 2 being arranged to sense the appearance indication 4A and to send a signal to the control means when the appearance indication 4A is sensed.

The control device is set to judge whether the feeding device slips or not when receiving the signal sent by the sensing device 2; the alarm device is set to send out an alarm prompt under the condition that the feeding device slips.

The utility model discloses a controlling means of winder can control material feeding unit and machining device move to carry pole piece 4 to the 3 departments of mechanical operation device and carry out the operation processing, simultaneously material feeding unit can feed back its actual distance of operation at the in-process of operation to controlling means.

The utility model discloses a winder still add in machining device 3's upper reaches with controlling means communication connection's induction system 2, induction system 2 when sensing outward appearance sign 4A on the pole piece to controlling means signals.

When the control device of the winding machine receives the signal sent by the sensing device 2, the situation that whether the feeding device slips or not can be judged by comparing the actual running distance of the conveying equipment with the theoretical running distance; and when the slipping condition (the actual running distance is greater than the theoretical running distance) occurs, the alarm device is controlled to give an alarm to remind a worker to check and maintain the feeding device in time.

The utility model discloses a winder controlling means judges the process that the pole piece skidded specifically as follows:

1. the principle of pole piece slippage is as follows:

when the winding machine is in operation, the pole pieces 4 move periodically in the transmission process and are finally wound into the battery cells, the length of the pole piece 4 of each battery cell is fixed, as shown in fig. 3, it is assumed that the travel distance of the pole piece 4 to be detected is the travel distance of the second period pole piece 42, and the left side and the right side of the second period pole piece 42 are respectively the third period pole piece 43 and the first period pole piece 41.

While the second periodic pole piece 42 is moving, the following analysis is performed with the appearance mark 4A of the second periodic pole piece 42 as a reference: the appearance mark 4A of the second period pole piece 42 is firstly moved from the starting position to the induction device 2, and the stage is the first stage; after the sensing device 2 senses the appearance mark 4A of the second period pole piece 42, the control device controls the feeding device to feed a specific distance so as to feed the position to be processed (i.e. the position where the appearance mark 4A is located) on the second period pole piece 42 to the mechanical working device 3, and this stage is the second stage.

As shown in fig. 3, assuming that the length of the pole piece 4 in each operation cycle is L (i.e. the distance between two adjacent appearance marks), when the pole piece 4 starts to start, the machining device 3 is just at the connection position of the first cycle pole piece 41 and the second cycle pole piece 42, the distance between the appearance mark 4A of the second cycle pole piece 42 and the sensing device 2 is set to be L1, and the distance L1 here is the distance that the second cycle pole piece 42 needs to move in the first stage; the distance between the induction device 2 and the machining device 3 is set as L2, and the distance L2 here is the distance that the second period pole piece 42 needs to move in the second stage; then L = L1+ L2.

When the second periodic pole piece 42 is moving in this period, the second periodic pole piece 42 sequentially goes through the first stage and the second stage; in the operation period, assuming that the total actual operation distance of the feeding device is D, when the pole piece 42 in the second period moves along the L1 segment in the first stage, corresponding to the first actual operation distance of the feeding device, assuming that the first actual operation distance of the feeding device is D1; when the pole piece 42 in the second period travels the L2 segment in the second stage, it is assumed that the second actual running distance of the feeding device is D2, corresponding to the second actual running distance of the feeding device; then D = D1+ D2.

When no slippage occurs between the pole piece 4 and the feeding device, the moving distance of the pole piece 42 in the second period is equal to the actual running distance of the feeding device, i.e. L = D, L1= D1; l2= D2.

2. The specific process for judging the slippage of the pole piece is as follows:

firstly, the position between the feeding device, the sensing device 2 and the mechanical working device 3 is fixed, so that the distance between the feeding device and the sensing device 2 and the distance between the sensing device and the mechanical working device 3 are known; further, the distance L1 between the visual indicator 4A of the second periodic pole piece 42 and the sensing device 2 is also known, while the distance L2 by which the visual indicator 4A of the second periodic pole piece 42 moves to the mechanical working device 3 again after being sensed by the sensing device 2 is also known.

When the second period pole piece 42 starts to move, the second period pole piece 42 firstly moves in the first stage, the feeding device conveys the second period pole piece 42 until the appearance mark 4A of the second period pole piece 42 is sensed by the sensing device 2, and sends a signal to the control device, and the control device obtains a first actual running distance D1, fed back by the feeding device, of the first stage for conveying the second period pole piece 42.

Next, the second-period pole piece 42 performs the second-period movement, the feeding device runs for a specific distance to convey the position to be processed on the second-period pole piece 42 to the mechanical working device 3, and the specific distance here is a second actual running distance D2 of the feeding device; in the process, the feeding device finishes the conveying of the pole pieces 42 in the second period, and when the feeding device conveys the pole pieces 4 in the next period again, the pole pieces 4 in the third period are conveyed.

The control device compares the D1 and the L1 in each operation period to judge whether the slipping condition occurs, if the D1 is larger than the L1 (equal to the theoretical operation distance of the feeding device in the first stage), the slipping condition occurs between the pole piece 4 and the feeding device in the conveying process, and the control device can control the alarm device to give an alarm so that a worker can conveniently check the feeding device.

Actually, when judging the sizes of D1 and L1:

when the second period pole piece 42 travels the L1 section in the first stage, if the second period pole piece 42 and the feeding device slip at a certain time, at this time, the second period pole piece 42 remains in a stationary state, because the feeding device is still conveying the pole piece 4, after a short slip, the second period pole piece 42 moves again until the appearance mark 4A of the second period pole piece 42 is sensed by the sensing device 2 to finish the movement of the first stage, because the sensing time under the slip condition is increased relative to that under the non-slip condition, the first actual running distance D1 of the feeding device is greater than the transmission distance of the second period pole piece 42 in the first stage, that is, D1 > L1.

When the pole piece 42 in the second period travels the L2 path in the second stage, no matter whether the slippage occurs in the stage, the feeding device runs for a specific distance D2; if there is no slippage between the second periodic pole piece 42 and the feeding device in the first stage, and there is slippage between the second periodic pole piece 42 and the feeding device at a certain time in the second stage, the third periodic pole piece 43 is caused to move in the first stage, so that the first actual running distance D1 of the feeding device is greater than the transmission distance of the third periodic pole piece 43 in the first stage, that is, D1 > L1.

A monitoring program is set in a control device of the winding machine, and a theoretical running distance L1, a first actual running distance D1, a tolerance value X and an alarm threshold value Y are set; the monitoring program judges whether the equipment normally operates or not by comparing the difference value between the first actual operating distance D1 and the theoretical operating distance L1 with the tolerance value X; when D1-L1 is less than X, the equipment normally operates; when D1-L1 is larger than or equal to X and Y times continuously occur, the equipment is abnormal in operation, and the control device controls the alarm device to give an alarm to remind a worker to conduct investigation.

Specifically, the theoretical running distance L1 is a distance between the appearance mark 4A of the pole piece 4 and the induction device 2 in each period, and the theoretical running distance L1 is a known value; the first actual running distance D1 is an actual running distance of the feeding device when the pole piece 4 is conveyed in the first stage, and the first actual running distance D1 is a numerical value fed back by the feeding device when the pole piece 4 is conveyed; the tolerance value X is the tolerance which can be accommodated when the pole piece 4 is processed, and the tolerance value X is freely set by a person skilled in the art according to the length of the pole piece 4; the alarm threshold value Y is a specific value and is set by a person skilled in the art according to actual needs, so that the control device controls the alarm device to alarm.

It should be noted that, the utility model discloses it is not right material feeding unit's concrete position that sets up makes any restriction, as long as material feeding unit can realize the transport effect to pole piece 4 can, and the technical staff in the field can set for by oneself according to actual need. For example, the feeding device is arranged upstream of the sensing device 2 or between the sensing device 2 and the mechanical working device 3. These changes of the specific setting position do not deviate from the basic principle of the present invention, and belong to the protection scope of the present invention.

It should also be noted that the utility model discloses it is not right material feeding unit's concrete structure does any restriction, as long as material feeding unit can carry pole piece 4 and can feed back actual operating distance to controlling means can, the technical staff in the field can set for by oneself according to actual need material feeding unit's concrete structure.

Preferably, as shown in fig. 1, the feeding device includes a feeding wheel set 1, a servo motor (not shown in the figure) and an encoder (not shown in the figure), and both the servo motor and the encoder are in communication connection with the control device; servo motor is connected with pay-off wheelset 1 drive to can drive pay-off wheelset 1 and rotate to carry mechanical operation device 3 with pole piece 4 through pay-off wheelset 1, the encoder sets up servo motor is last, and can detect servo motor's actual working distance, and can with actual working distance converts digital signal transmission into for controlling means.

It should be noted that, the present invention does not limit the specific structure of the feeding wheel set 1, and those skilled in the art can set the structure according to actual needs.

Preferably, as shown in fig. 1, the feeding wheel set 1 comprises a driving wheel 11 and a driven wheel 12, a nip 13 is formed between the driving wheel 11 and the driven wheel 12, and the servo motor is in driving connection with the driving wheel 11 and can drive the driving wheel 11 to rotate so as to convey the pole piece 4 positioned in the nip 13 to the mechanical working device 3. The servo motor is used for driving the driving wheel 11 to rotate, and the pole piece 4 positioned in the gap 13 is conveyed through friction while the driving wheel 11 rotates.

Although in the embodiment of fig. 1 the feeding wheel set 1 is arranged to cooperate with the driving wheel 11 and the driven wheel 12 to transport the pole pieces 4, this should not limit the scope of the present invention, as long as the pole pieces 4 can be transported, the feeding wheel set 1 may also be arranged in other configurations. For example, pay-off wheelset 1 can include two action wheels, has the crack between two action wheels, and a servo motor is connected respectively to every action wheel, sets two action wheels to rotate along opposite direction simultaneously, thereby servo motor drive action wheel rotates and will be located the mechanical working device 3 departments of 4 transport of pole pieces of crack, and these changes are all skew the utility model discloses a principle, consequently all will fall into within the protection scope. Of course, the above-described "driving wheel + driven wheel" wheel set structure is preferably adopted.

It should be further explained that, the utility model discloses also not the concrete structure of induction system 2 the concrete structure of appearance identification and induction system 2's response mode do any restriction, as long as induction system 2 can sense appearance identification 4A and sensing appearance identification 4A time to controlling means send signal can, technical personnel in the field can set for by oneself according to actual production needs.

In a preferred embodiment, the sensing device 2 is a photosensor, and the appearance mark 4A on the pole piece 4 is a light and dark mark, and the photosensor can recognize the light and dark mark.

In another preferred embodiment, as shown in fig. 1, the sensing device 2 comprises a laser generator 21 and a laser receiver 22 which are oppositely arranged, the laser generator 21 and the laser receiver 22 are respectively positioned at the upper side and the lower side of the pole piece 4, meanwhile, the appearance Mark 4A on the pole piece 4 is a Mark hole, and the laser receiver 22 can receive a laser signal which is emitted by the laser generator 21 and passes through the Mark hole.

It should be noted that the present invention does not limit the specific structure and operation manner of the mechanical working device 3, and those skilled in the art can set the operation according to actual production needs. For example, the machine operation device may be a tab welding device, a protective tape attaching device, or a pole piece cutting device 31, or may be another machine operation device used in the winding process of the lithium battery.

In addition, it should be noted that the present invention does not limit the specific structure and the alarm mode of the alarm device, and those skilled in the art can set the alarm device according to the actual production needs. For example, the alarm device is provided as a light alarm device, an audible alarm device, or an audible and visual alarm device.

Preferably, as shown in fig. 1, the winding machine of the present invention further includes a roller passing device 6 disposed between the feeding device and the mechanical working device 3, wherein the roller passing device 6 is used to change the moving direction of the pole piece 4 conveyed from the feeding device, so that the pole piece 4 moves smoothly toward the mechanical working device 3.

It should be noted that the present invention does not limit the specific structure, the installation position, and the specific number of the roller-passing devices 6, and those skilled in the art can set the installation position by themselves according to actual production needs. For example, with continued reference to fig. 1, the roller device 6 is disposed between the feeding device and the sensing device 2, so that the pole piece 4 is changed from vertical conveying through the roller device 6 to horizontal conveying to smoothly convey the pole piece 4 to the mechanical working device 3. Referring to fig. 2, the roll passing devices 6 are provided with two roll passing devices 6, which are both arranged between the feeding device and the sensing device 2, so that the pole piece 4 is changed into a vertical conveying direction from a transverse conveying direction when passing through the first roll passing device 6, and then the vertical conveying direction is changed into an oblique lower conveying direction through the second roll passing device 6, so that the pole piece 4 is smoothly conveyed to the pole piece cutting device 31 for cutting, and the cut pole piece 4 is wound by the winding needle control device 5 to form an electrode winding core. These changes that relate to concrete structure, set up the position and set up quantity do not all deviate from the basic principle of the utility model, all belong to the scope of protection of the utility model.

Preferably, the winding machine further comprises a deviation correcting device arranged between the feeding device and the mechanical working device.

It should be noted that, the present invention does not limit the specific structure, the setting position and the specific number of the deviation rectifying device, and those skilled in the art can set the deviation rectifying device according to actual needs.

Exemplarily, deviation correcting device includes the fixing base, the terminal surface is provided with motor mount pad, up end is provided with sliding assembly under the fixing base, be provided with the motor on the motor mount pad, motor drive is connected with the eccentric wheel in order to drive the eccentric wheel rotates, the eccentric wheel passes through the connecting rod and connects sliding assembly so that the eccentric wheel is when rotating, through the connecting rod drives sliding assembly is in rotatory slip on the fixing base, the last roller subassembly that is provided with of sliding assembly, roller subassembly sets up to the pole piece of process work of rectifying so that the pole piece is convoluteed and is accomplished back finished product both ends face and level orderly, set up screw rod coupling assembling between sliding assembly and the fixing base and be used for the restriction sliding assembly's slip region, sliding assembly one side is provided with contrast photoelectricity, contrast photoelectricity is used for the pole piece of response process and gives controlling means with signal transmission when sensing the pole piece in order to control the motor operation, it is connected with adjusting part to contrast photoelectricity, adjusting part is used for adjusting the position so that contrast photoelectricity clock can the pole piece of process.

Preferably, the winding machine further comprises a tension control device arranged between the feeding device and the mechanical working device.

It should be noted that, the present invention does not limit the specific structure, the setting position, and the specific number of the tension control devices, and those skilled in the art can set the tension control devices according to actual needs.

Exemplarily, the tension control device comprises a swing arm, a tension roller assembly, a servo motor, a position detection mechanism and a coupling; the tension roller assembly is installed on the swing arm, the servo motor is connected with the tension roller set to drive the tension roller set to tension the pole piece, and the position detection mechanism is connected with the servo motor through the coupler to identify the state of the swing arm and the size of control tension.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. A winding machine is characterized by comprising a control device, a feeding device, an induction device, a mechanical operation device and an alarm device, wherein the feeding device, the induction device, the mechanical operation device and the alarm device are in communication connection with the control device;

the feeding device is arranged at the upstream of the mechanical operation device, and the feeding device is arranged to convey pole pieces to the mechanical operation device for processing operation and feed back an actual operation distance to the control device;

a plurality of appearance marks which are uniformly distributed along the length direction of the pole piece are arranged on the pole piece;

the sensing device is arranged at the upstream of the mechanical working device and is arranged to sense the appearance mark and send a signal to the control device when the appearance mark is sensed;

the control device is set to be capable of judging whether the feeding device slips or not when receiving the signal sent by the sensing device;

the alarm device is set to send out an alarm prompt under the condition that the feeding device slips.

2. The winding machine according to claim 1, wherein the feeding device comprises a feeding wheel set, a servo motor and an encoder, both of which are in communication connection with the control device;

servo motor with pay-off wheelset drive connection and can drive pay-off wheelset rotates in order to pass through pay-off wheelset will the pole piece is carried mechanical operation device, the encoder sets up servo motor is last and can detect servo motor's actual working distance and can with actual working distance converts digital signal into and transmits for controlling means.

3. The winding machine according to claim 2, wherein the feeding wheel set comprises a driving wheel and a driven wheel, a gap is formed between the driving wheel and the driven wheel, and the servo motor is in driving connection with the driving wheel and can drive the driving wheel to rotate so as to convey the pole piece located in the gap to the mechanical working device.

4. Spooling machine as defined in claim 1, wherein the sensing device is a photosensor and the visual indication is a light and dark indication, the photosensor being capable of recognizing the light and dark indication.

5. The winding machine of claim 1, wherein the sensing device comprises a laser generator and a laser receiver arranged oppositely, the laser generator and the laser receiver are respectively arranged on two sides of the pole piece, the appearance Mark is a Mark hole, and the laser receiver can receive a laser signal which is emitted by the laser generator and passes through the Mark hole.

6. The winding machine of claim 1, wherein the mechanical working device is a tab welding device, a protective tape applying device, or a pole piece cutting device.

7. Spooling machine as defined in claim 1, wherein the alarm device is a light alarm device, an audible alarm device or an audible and visual alarm device.

8. Winding machine according to any of claims 1 to 7, further comprising a roller passing device arranged between the feeding device and the mechanical working device for changing the direction of movement of the pole pieces delivered from the feeding device to move the pole pieces smoothly towards the mechanical working device.

9. Spooling machine as claimed in any of claims 1 to 7, further comprising a deviation correction device arranged between the feeding device and the mechanical working device.

10. Spooling machine as claimed in any of claims 1 to 7, further comprising a tension control device arranged between the feeding device and the mechanical working device.

Images