CN110562789A - Feeding deviation correcting device - Google Patents

Abstract

The invention discloses a rectifying device for feeding material, which comprises a clipping mechanism, a rectifying drive mechanism, a feeding driving mechanism and a rectifying detector. The clipping mechanism is used for clamping or loosening a pole piece passing through the inside thereof, and the rectifying driving mechanism The driving end of the drive mechanism is linked with the clip mechanism, the deviation correction drive mechanism drives the clip mechanism to reciprocate in the direction of deviation correction, the drive end of the film feed drive mechanism is linked with the clip mechanism, and the film feed drive mechanism drives the clip mechanism in the pole piece conveying direction. Reciprocating movement, the deviation correction detector is used to detect the offset of the pole piece. The feeding deviation correction device realizes the combination of the functions of pole piece feeding and deviation correction. The pole piece can be rectified by driving the clip mechanism to reciprocate in the deviation correction direction through the deviation correction drive mechanism; The reciprocating movement in the sheet conveying direction can realize the conveying of the pole pieces. The rectification drive mechanism moves forward together with the pole piece, making the rectification position close to the winding station to the greatest extent, and the rectification effect is remarkable.

Description

A feed correction device

technical field

The invention relates to the technical field of cylindrical lithium ion battery production, in particular to a material feeding deviation correction device.

Background technique

The feeding rectification device is installed before the pole piece is wound. After the pole piece is rectified by the feeding rectification device, the pole piece is transported to the winding station by the feeding mechanism.

The existing material feeding rectification device and the sheet feeding mechanism are two separate mechanisms. The pole piece rectification action occurs before the sheet feeding, and the traditional rectification mechanism can only move in the rectification direction, but cannot move in the direction of the pole piece movement. As the pole piece is continuously conveyed forward, the winding point of the deviation correction point is getting farther and farther, which leads to the worsening effect of the deviation correction.

Therefore, the existing feeding deviation rectification device cannot guarantee a good deviation rectification effect.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a feeding deviation correction device to solve the problems raised in the above-mentioned background art.

The technical solution adopted to solve the above technical problems: a material feeding correction device, including a clip mechanism, a correction drive mechanism, a film feed drive mechanism and a correction detector, and the clip mechanism is used for clamping or loosening through the For the pole piece inside, the drive end of the rectification drive mechanism is linked with the clip mechanism, the rectification drive mechanism drives the clip mechanism to reciprocate in the rectification direction, and the drive end of the feed drive mechanism is connected to the clip mechanism. The clipping mechanism is linked, the driving mechanism for feeding the clipping mechanism drives the clipping mechanism to move back and forth in the pole piece conveying direction, and the deviation correction detector is used to detect the offset of the pole piece.

As an improvement to the above solution, the clip mechanism includes an upper clip, a lower clip, and a clip drive mechanism, and the clip drive mechanism drives the upper clip or the lower clip on the upper and lower surfaces of the pole piece vertically Move in the direction so that the two clips move relative or back to each other.

As an improvement of the above solution, a first pressing wheel is rotatably arranged on the upper clip, and a second pressing wheel is rotatably arranged on the lower clip, and the first pressing wheel and the second pressing wheel are arranged vertically facing each other.

As an improvement of the above solution, the second pressure roller rotates in one direction, and the direction of rotation is consistent with the conveying direction of the pole pieces.

As an improvement of the above solution, the first pressing wheel and the second pressing wheel are respectively arranged on the front ends of the upper clip and the lower clip.

As an improvement of the above solution, the detection position of the deviation correction detector is arranged close to the first pressure roller and the second pressure roller, and is located behind the first pressure roller and the second pressure roller.

As an improvement of the above solution, the front end of the upper clip is provided with an upper pressure block pointing to the conveying direction of the pole piece, and the front end of the lower clip is provided with a lower pressure block pointing in the conveying direction of the pole piece, the upper pressure block and A gap for the electrode piece to pass through is formed before the lower pressing block.

As an improvement of the above solution, the deviation correction drive mechanism includes a first motor, a belt transmission mechanism and a first lead screw assembly, and the first lead screw assembly includes a first lead screw and a first bearing sleeved on the first lead screw The first motor drives the first lead screw to rotate forward and reverse, the first bearing seat reciprocates along the direction of deviation correction, and the clip mechanism is connected to the first bearing through the first rigid connection The seat is fixedly connected to achieve synchronous movement.

As an improvement of the above solution, the sheet feeding drive mechanism is installed on the frame, the sheet feeding driving mechanism includes a second motor and a second lead screw assembly, the second lead screw assembly includes a second lead screw and is sleeved on The second bearing seat on the second lead screw, the second motor drives the second lead screw to rotate forward and reverse, the second bearing seat reciprocates along the pole piece conveying direction, and the deviation correction driving mechanism passes through The second rigid connecting member is fixedly connected with the second bearing seat to realize synchronous movement.

As an improvement of the above solution, the second rigid connecting member is provided with a limit baffle plate that follows the second rigid connecting member to reciprocate in the pole piece conveying direction, and the frame is provided with a set of limiting baffles along the pole piece conveying direction. A limit switch is provided, and the two limit switches are respectively located at the front and the rear of the limit baffle plate to limit the movement stroke of the second rigid connecting piece.

Beneficial effects: The feeding rectification device realizes the combination of pole piece feeding and rectification functions, and the pole piece rectification can be realized by driving the clip mechanism to reciprocate in the rectification direction through the rectification drive mechanism; at the same time, driven by the piece feeding drive mechanism The reciprocating movement of the clamping mechanism in the conveying direction of the pole piece can realize the conveying of the pole piece. The rectification drive mechanism moves forward together with the pole piece, making the rectification position close to the winding station to the greatest extent, and the rectification effect is remarkable.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:

Fig. 1 is the overall structure schematic diagram of the feeding deviation correction device according to the embodiment of the present invention;

Fig. 2 is the top view of Fig. 1;

3 is a schematic structural diagram of a first pressing wheel and a second pressing wheel clamping the pole piece;

FIG. 4 is a schematic structural diagram of a deviation correction drive mechanism;

Fig. 5 is the assembly schematic diagram of the clip mechanism;

Fig. 6 is the state schematic diagram that the clamping mechanism clamps the pole piece and conveys it forward;

FIG. 7 is a schematic diagram of the state in which the clip mechanism releases the pole piece and retracts.

Detailed ways

Referring to FIGS. 1 to 7 , an embodiment of the present invention is a feeding correction device, which is mainly composed of a clamping mechanism 10 , a correction driving mechanism 30 , a feeding driving mechanism 20 and a correction detector. The pole pieces pass through the jaw mechanism 10 and extend to the winding mechanism.

The driving end of the rectification drive mechanism 30 is linked with the clip mechanism 10, and the rectification drive mechanism 30 is activated to drive the clip mechanism 10 to reciprocate in the rectification direction; the drive end of the film feed drive mechanism 20 is linked with the clip mechanism 10 to activate The sheet feeding driving mechanism 20 can drive the clamping mechanism 10 to move back and forth in the pole piece conveying direction.

The above-mentioned linkage is the connection of power. The deviation correction drive mechanism 30 can provide a power source pointing in the deviation correction direction, and the film feeding driving mechanism 20 can provide a power source pointing in the film feeding direction. The clip mechanism 10 is used to clamp or loosen the pole pieces passing through its interior. The clip mechanism 10 can realize the pole piece deviation correction function and the pole piece feeding function through the power of the deviation correction driving mechanism 30 and the film feeding driving mechanism 20 . The deviation correction detector is used to detect the deviation of the pole piece. The magnitude of the offset is equal to the magnitude of the displacement of the rectifying drive mechanism 30 driving the clip mechanism 10 in the rectifying direction.

The feeding deviation rectification device realizes the combination of the functions of pole piece feeding and deviation rectification. The pole piece can be rectified by driving the clip mechanism 10 to reciprocate in the deviation rectification direction through the deviation rectification drive mechanism 30; The reciprocating movement of the clamping mechanism 10 in the conveying direction of the pole pieces can realize the conveying of the pole pieces. The deviation rectification drive mechanism 30 moves forward together with the pole piece, so that the deviation rectification position is close to the winding station to the greatest extent, and the deviation rectification effect is remarkable.

Specifically, the clip mechanism 10 includes an upper clip 101, a lower clip 102 and a clip driving mechanism, and the clip driving mechanism can drive the upper clip 101 or the lower clip 102 to move in the vertical direction of the upper and lower surfaces of the pole pieces, so that The two clips do relative or back-to-back movement. In this embodiment, the clamping plate is driven as a driving cylinder 103. The cylinder rod of the driving cylinder 103 is fixedly installed with the lower clamping piece 102, and the cylinder body of the driving cylinder 103 is fixedly installed with the upper clamping piece 101. The clamping piece 101 and the lower clamping piece 102 are approached and separated in order to complete the clamping and loosening of the pole pieces. At the same time, the installation methods of the driving cylinder 103, the upper clip 101 and the lower clip 102 can be reversed, and the principle is the same. The driving cylinder 103 can also be installed on the frame, the cylinder rod is fixedly connected with one of the clips, and the driving cylinder 103 drives the clip to move up and down.

Preferably, a first pressing wheel 1011 is rotatably arranged on the upper clip 101 , and a second pressing wheel 1021 is rotatably arranged on the lower clip 102 . The first pressing wheel 1011 and the second pressing wheel 1021 move relatively to press against the upper and lower surfaces of the pole pieces respectively, and the pole pieces located between the first pressing wheel 1011 and the second pressing wheel 1021 are clamped to ensure that the pole pieces can be Stable delivery to the winding station.

At the same time, in order to prevent the pole piece from retreating during the conveying of the pole piece, the second pressing wheel 1021 is set to rotate in one direction, and the rotation direction of the second pressing wheel 1021 is consistent with the conveying direction of the pole piece. During the winding process, the pole piece is slightly deformed due to a certain degree of tension, so that the pole piece itself has a tendency to recover the deformation. When the pole piece is cut, the retraction of the pole piece itself may cause the reverse rotation of the first pressing wheel 1011 and the second pressing wheel 1021, which in turn drives the pole piece in reverse, so that the end of the pole piece is separated from the first pressing wheel 1011 The gap between the second pressing wheel 1021 and the second pressing wheel 1021 makes the device unable to perform subsequent actions. Once the second pressing wheel 1021 is set to rotate in one direction, the situation of turning can be avoided, and the stability of the whole device can be ensured.

Preferably, the first pressing wheel 1011 and the second pressing wheel 1021 are respectively disposed on the front ends of the upper clip 101 and the lower clip 102 . The detection position of the deviation correction detector is disposed close to the first pressing roller 1011 and the second pressing roller 1021 , and is located behind the first pressing roller 1011 and the second pressing roller 1021 . The deflection correction detector may be a deflection correction optical fiber installed on the rack. During the film feeding process, the deviation correction fiber detects the offset of the pole piece. The offset can be fed back to the deviation correction drive mechanism 30, and the clip mechanism 10 is driven to move in the deviation correction direction by the deviation correction drive mechanism 30, thereby ensuring that the pole pieces are correctly clamped at the lower edges of the first pressing wheel 1011 and the second pressing wheel 1021. The direction is conveyed to the winding station.

At the same time, the front end of the upper clip 101 is installed with an upper pressure block 1012 pointing to the conveying direction of the pole piece, and the front end of the lower clip 102 is installed with a lower pressure block 1022 pointing to the pole piece conveying direction, before the upper pressure block 1012 and the lower pressure block 1022 A slit for the pole piece to pass through is formed. The pole piece passes between the first pressing wheel 1011 and the second pressing wheel 1021 and then goes out through the gap. The gap forms a rigid clip channel, which can prevent the pole piece from passing between the first pressing wheel 1011 and the second pressing wheel 1021, compared to the fact that the pole piece passes directly through between the first pressing wheel 1011 and the second pressing wheel 1021. A large amount of shaking occurs at the clamping place, which ensures the stability of the clamping.

Specifically, the deviation correction drive mechanism 30 in the device is composed of a first motor 31 , a belt transmission mechanism 32 and a first lead screw assembly. The first lead screw assembly includes a first lead screw 33 and a first bearing seat 34 sleeved on the first lead screw 33. The first motor 31 drives the first lead screw 33 to rotate forward and reversely. The first bearing seat 34 runs along the The clip mechanism 10 is fixedly connected to the first bearing seat 34 through the first rigid connecting member 50 to reciprocate in the direction of correcting deviation to realize synchronous movement. The film feeding drive mechanism 20 is installed on the frame, and the film feeding driving mechanism 20 includes a second motor 21 and a second lead screw assembly. The second lead screw assembly includes a second lead screw 22 and a first lead screw sleeved on the second lead screw 22. Two bearing seats 23, the second motor 21 drives the second lead screw 22 to rotate forward and reverse, the second bearing seat 23 reciprocates along the pole piece conveying direction, and the deviation correction drive mechanism 30 is connected to the second bearing through the second rigid connecting piece 40 The seat 23 is fixedly connected to achieve synchronous movement.

The second lead screw 22 is synchronously installed on the output shaft driven by the second motor 21 through a coupling, and at the same time the second lead screw 22 is rotatably installed on the frame through a bearing. A pair of linear slide rails are installed on the frame, and the second rigid connecting member 40 is plate-shaped, which can be a steel plate. The linear slide rail provides support and guidance, so that the second rigid connecting member 40 can smoothly follow the second bearing seat 23 to reciprocate.

The deflection-correcting drive mechanism 30 is fixedly mounted on the second rigid connecting piece 40 , and the whole can follow the second rigid connecting piece 40 to move back and forth. Specifically, the first motor 31 is fixedly mounted on the second rigid connecting member 40 , and the first lead screw 33 is rotatably mounted on the second rigid connecting member 40 through a bearing. When the first motor 31 is started, the first lead screw 33 can be driven to rotate through the belt transmission mechanism 32, thereby driving the first bearing seat 34 to reciprocate in the direction of deviation correction. The first rigid connecting member 50 is plate-shaped, and can also be a steel plate. The bottom surface of the steel plate is fixedly installed with the first bearing seat 34 , and the first rigid connecting member 50 reciprocates following the first bearing seat 34 . Specifically, a guide shaft may be provided on the first rigid connecting member 50, the guide shaft penetrates the lower clip 102 in the clip mechanism 10, and the entire clip mechanism 10 can reciprocate along the guide shaft.

Preferably, the second rigid connecting member 40 is provided with a limit baffle plate 41 that follows the second rigid connecting member 40 to reciprocate in the pole piece conveying direction, and the frame is provided with a set of limit switches 60 along the pole piece conveying direction, The two limit switches 60 are respectively located in front of and behind the limit baffle 41 to limit the movement stroke of the second rigid connecting member 40 . The limit switch 60 may be a limit switch. When the limit baffle 41 is in contact with the limit switch, the limit switch sends an electrical signal to the second motor 21 and the second motor 21 stops rotating.

The following are the various stages of the feeding correction device and its working principle:

1. In the initial state, the upper clip 101 and the lower clip 102 are in a separated state, and the second rigid connecting member 40 is driven by the second bearing seat 23 and is located at the initial position as a whole.

2. Clamping the pole piece, under the driving of the driving cylinder 103, the upper clamping piece 101 and the lower clamping piece 102 move relatively to the clamping pole piece.

3. In the sheet feeding action, under the driving of the second motor 21, the second bearing seat 23 drives the second rigid connecting piece 40 to move forward, thereby making the clamping mechanism 10 move forward to realize the pole piece conveying.

4. Loosen the pole piece, drive the cylinder 103 to reset, the upper clip 101 and the lower clip 102 move back to separate from each other, and the pole piece is released.

5. Back to the initial position. Driven by the second motor 21, the second bearing seat 23 drives the second rigid connecting piece 40 to move backward, and the clip mechanism 10 and the deviation correction mechanism move backward until they return to the initial position.

In the above film feeding action, the deviation correction mechanism is in the working state, the first motor 31 performs the corresponding deviation correction action according to the information fed back by the deviation correction detector, and the deviation correction action is performed synchronously with the film feeding action.

At the same time, the mechanism in the device is simple and integrated and installed, with high stability and convenient debugging.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and can also be made within the scope of knowledge possessed by those of ordinary skill in the technical field without departing from the purpose of the present invention. Various changes.

Claims (10)

1. The utility model provides a pan feeding deviation correcting device which characterized in that: the device comprises a clamping piece mechanism, a deviation rectifying driving mechanism, a piece conveying driving mechanism and a deviation rectifying detector, wherein the clamping piece mechanism is used for clamping or loosening a pole piece passing through the clamping piece mechanism, the driving end of the deviation rectifying driving mechanism is linked with the clamping piece mechanism, the deviation rectifying driving mechanism drives the clamping piece mechanism to reciprocate in the deviation rectifying direction, the driving end of the piece conveying driving mechanism is linked with the clamping piece mechanism, the piece conveying driving mechanism drives the clamping piece mechanism to reciprocate in the pole piece conveying direction, and the deviation rectifying detector is used for detecting the offset of the pole piece.

2. A feed deviation rectifying device as claimed in claim 1, wherein: the clamping piece mechanism comprises an upper clamping piece, a lower clamping piece and a clamping piece driving mechanism, wherein the clamping piece driving mechanism drives the upper clamping piece or the lower clamping piece to move in the vertical direction of the upper surface and the lower surface of the pole piece, so that the two clamping pieces move oppositely or back to back.

3. A feed deviation rectifying device as claimed in claim 2, wherein: the upper clamping piece is provided with a first pressing wheel in a rotating mode, the lower clamping piece is provided with a second pressing wheel in a rotating mode, and the first pressing wheel and the second pressing wheel are arranged in an up-down opposite mode.

4. A feed deviation rectifying device as claimed in claim 3, wherein: the second pinch roller rotates in a single direction, and the rotating direction of the second pinch roller is consistent with the conveying direction of the pole piece.

5. A feed deviation rectifying device as claimed in claim 3, wherein: the first pinch roller and the second pinch roller are respectively arranged at the front end parts of the upper clamping piece and the lower clamping piece.

6. A feeding deviation correcting device as defined in claim 5, wherein: the detection position of the deviation rectifying detector is arranged close to the first pinch roller and the second pinch roller and behind the first pinch roller and the second pinch roller.

7. A feeding deviation correcting device as defined in claim 5, wherein: the front end of the upper clamping piece is provided with an upper pressing block pointing to the pole piece conveying direction, the front end of the lower clamping piece is provided with a lower pressing block pointing to the pole piece conveying direction, and a gap for the pole piece to penetrate is formed between the upper pressing block and the lower pressing block.

8. a feed deviation rectifying device as claimed in claim 1, wherein: the deviation correcting driving mechanism comprises a first motor, a belt transmission mechanism and a first lead screw assembly, the first lead screw assembly comprises a first lead screw and a first bearing seat sleeved on the first lead screw, the first motor drives the first lead screw to rotate positively and negatively, the first bearing seat reciprocates along the deviation correcting direction, and the clamping piece mechanism is fixedly connected with the first bearing seat through a first rigid connecting piece to realize synchronous movement.

9. A feed deviation rectifying device as claimed in claim 1, wherein: the sheet feeding driving mechanism is mounted on the rack and comprises a second motor and a second lead screw assembly, the second lead screw assembly comprises a second lead screw and a second bearing seat sleeved on the second lead screw, the second motor drives the second lead screw to rotate positively and negatively, the second bearing seat reciprocates along the pole piece conveying direction, and the deviation rectifying driving mechanism is fixedly connected with the second bearing seat through a second rigid connecting piece so as to realize synchronous movement.

10. A feed deviation rectifying device as claimed in claim 9, wherein: the frame is provided with a group of limit switches along the pole piece conveying direction, and the two limit switches are respectively positioned in front of and behind the limit baffle so as to limit the moving stroke of the second rigid connecting piece.