CN211017293U

CN211017293U - Square power electric core winding machine

Info

Publication number: CN211017293U
Application number: CN201922485683.5U
Authority: CN
Inventors: 曹海霞; 黎红宁; 罗俊辉; 林裕伟; 赵文俊
Original assignee: Zhuhai Higrand Technology Co Ltd
Current assignee: Zhuhai Higrand Technology Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-07-14
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a square power electricity core winder, which comprises a frame and a winding device, wherein the winding device is provided with a winding station, a rubberizing station and a blanking station, the winding device comprises a winding head which is rotatably arranged on the frame, three first winding needles are arranged on the winding head, the square power electricity core winder also comprises a guiding device, the guiding device comprises a press roller and an XY axis driving unit, the press roller is parallel to the first winding needles, the press roller is provided with a first position and a second position, the first position is arranged at the upstream end of the winding station along the feeding direction of the first winding needles, the second position is arranged between the rubberizing station and the winding station, the XY axis driving unit can drive the press roller to move between the first position and the second position along the X axis and the Y axis, a limiting part is arranged on the first winding needles, the winding device also comprises a first limiting unit, the first limiting unit is used in the reversing process of the winding head, the winding needle on the winding head axially moves along the winding needle, and the square power electric core winding machine has the advantage of high production efficiency.

Description

Square power electric core winding machine

Technical Field

The utility model belongs to the technical field of battery production facility technique and specifically relates to a square power electricity core winder is related to.

Background

The existing lithium battery core rolling is mainly finished by a core winder, and the core winder forms the lithium battery core by stacking, winding and gluing a positive pole piece, a negative pole piece and a diaphragm according to a certain sequence. In order to improve the production speed of the electric core winder, the existing electric core winder generally adopts a three-station winding device, namely the winding device is provided with a winding station, a rubberizing station and a blanking station, the winding device comprises a winding head, three winding needles, a reversing unit, a pushing-closing needle unit, an opening-pulling needle unit and a driving unit, and the reversing unit is used for driving the winding head to reverse so that the three winding needles on the winding head synchronously switch positions among the winding station, the rubberizing station and the blanking station; the pushing and closing needle unit is arranged at the winding station and used for pushing the winding needle at the winding station out of the winding head and closing the winding needle to clamp the pole piece and the diaphragm; the needle opening and drawing unit is arranged at the blanking station, so that a winding needle at the blanking station is opened to loosen the clamping of the pole piece and the diaphragm, and the winding needle is recovered into the winding head; the driving unit is used for driving each winding needle to rotate.

However, when the winding needle is switched from the winding station to the rubberizing station, the diaphragm is not cut, the diaphragm moves to the rubberizing station along with the winding needle, and the position of the diaphragm is easy to deviate in the process that the diaphragm moves along with the winding needle, so that the electric core winding machine is provided with the guide mechanism to guide and correct the position of the diaphragm. However, since the guide operation of the conventional guide mechanism partially interferes with the operation of the winding needle switching station spatially, the operation time of the guide mechanism needs to be shifted from the operation time of the winding needle switching station, and this causes the other devices of the core winder to have to suspend the operation to wait for the winding needle to switch the stations, which results in a limitation in the production speed of the core winder and a difficulty in further improvement in the production efficiency,

in addition, each winding needle needs to be switched among the winding station, the rubberizing station and the blanking station, and the winding needle in the position switching process needs to keep the current state to move, so that when the winding needle moves to the winding station, the pushing and closing needle unit can accurately push and close the winding needle; or when the winding needle moves to the blanking station, the needle opening and drawing unit can accurately perform needle opening and drawing operations on the winding needle. However, because the existing winding device is not provided with a mechanism for limiting the winding needle in the position switching process, and the push-close needle unit and the open-draw needle unit do not rotate along with the winding head, the winding needle is easy to move along the self axial direction due to vibration in the process of rotating along with the winding head, so that after the winding head is completely switched, the execution end of the push-close needle unit is difficult to accurately control the winding needle switched to the winding station, and the execution end of the open-draw needle unit is difficult to accurately control the winding needle switched to the blanking station. In addition, because the winding needle does not need to be opened or closed, drawn or pushed at the rubberizing station, the existing winding device is not provided with a corresponding operating mechanism at the rubberizing station to operate and limit the winding needle, so that the winding needle at the rubberizing station is easy to move along the axial direction of the winding needle in the rubberizing process. Moreover, in the process of switching the position of the winding needle, the winding needle is easy to collide with the pushing-closing needle unit or the opening-drawing needle unit due to the deviation of the position of the winding needle, so that potential safety hazards exist.

Disclosure of Invention

In order to solve the problem, the main object of the present invention is to provide a square power core winder which has high production efficiency and can prevent the reversing process of the winding head and the axial movement of the winding needle on the winding head.

In order to realize the main purpose of the utility model, the utility model provides a square power electric core winder, which comprises a frame and a winding device, wherein the winding device is provided with a winding station, a rubberizing station and a discharging station, the winding device comprises a winding head which is rotatably arranged on the frame, three first winding needles are arranged on the winding head, the first winding needles slide relative to the winding head along the self axial direction, the winding head can drive the three first winding needles to move between the winding station, the rubberizing station and the discharging station, wherein, the square power electric core winder also comprises a guiding device, the guiding device comprises a press roller and an XY axis driving unit, the press roller is parallel to the first winding needles, the press roller is provided with a first position and a second position, the first position is arranged at the upstream end of the winding station along the feeding direction of the first winding needles, the second position is arranged between the rubberizing station and the winding station, the XY axis driving unit can drive the press roller to move between the first position and the second position along the X axis and the Y axis, the winding device comprises a first winding needle, a first limiting unit and a second limiting unit, wherein the first limiting unit comprises a first rail, the first rail is installed at the front end of the frame, which is close to a winding head, and extends from the winding station to the blanking station along the rotation direction of the winding head, the first rail is provided with a first limiting surface facing the front end of the winding head, the projection of the first end of the first rail is staggered with the projection of the limiting part at the winding station along the axial direction of the winding head, and the projection of the second end of the first rail is staggered with the projection of the limiting part at the blanking station.

It is from top to bottom seen, when the first book needle of coiling head drive carries out the station and switches, guider can drive the compression roller and remove to first position department earlier, remove to second position department again, make the compression roller can lead to the diaphragm that moves to the first book needle of rubberizing station department from coiling station department, rotate the diaphragm after the assurance is led from unloading station department to the first book needle of coiling station department can be accurate, reliable presss from both sides tightly, and simultaneously, above-mentioned structural design still makes guider and take-up device can simultaneous working, square power core winder's production efficiency has been improved. In addition, through the cooperation between the locating part on first track and the first volume needle, make first volume needle follow the coiling head from the coiling station switch to the in-process of unloading station, the locating part can get into first orbital first spacing face and with first spacing face contact to carry on spacingly to first volume needle, prevent that first volume needle from carrying out the switching position in-process and taking place the drunkenness along self axial, thereby guarantee that the volume needle can take out the needle unit with opening of unloading station department and accurately be connected. Moreover, the cooperation of first track and locating part can also carry on spacingly to the first book needle that is in rubberizing station department, avoids the first book needle of rubberizing station department to carry out electric core rubberizing in-process along self axial float, has guaranteed the rubberizing quality of electric core.

Preferably, the XY-axis driving unit includes an X-axis driving mechanism that drives the platen roller to move along an X-axis and a Y-axis driving mechanism that drives the X-axis driving mechanism to move along a Y-axis, the X-axis being perpendicular to the Y-axis, and the Y-axis being parallel to a radial direction of the winding head passing through the winding station, and a line is formed between the first position and the second position, the line being parallel to the Y-axis, and the winding station being located on the line.

Therefore, the structural design enables the installation position of the guide device and the structural layout of the square power electric core winding machine to be optimized, and meanwhile, the X-axis driving mechanism and the Y-axis driving mechanism can drive the press roller to move between the first position and the second position more conveniently, accurately and reliably.

Another preferred scheme is that the first limiting unit further comprises a first stop block and a first driving mechanism, the first stop block is hinged at the first end of the first rail, the first stop block is provided with a first limiting portion, the first limiting portion is provided with a second limiting surface which is flush with the first limiting surface, and the first driving mechanism can drive the first stop block to rotate so that the second limiting surface moves to the first end of the first rail and abuts against the limiting member at the winding station.

It can be seen from above that, first dog is used for better guiding the locating part to first track, and first actuating mechanism is used for driving first dog and dodges first volume needle, avoids first dog and first volume needle to bump.

The winding device further comprises a second limiting unit, the second limiting unit comprises a second rail, a second stop block and a second driving mechanism, the second rail is mounted at the tail end, close to the winding head, of the rack, the second rail extends from the blanking station to the winding station along the rotation direction of the winding head, a third limiting surface is formed on one surface, facing the tail end of the winding head, of the second rail, the projection of the first end of the second rail is staggered with the projection of the limiting piece at the blanking station along the axial direction, and the projection of the second end part of the second track is staggered with the projection of the limiting part at the winding station, the second stop block is hinged at the first end part of the second track, the second stop block is provided with a second limiting part, the second limiting part is provided with a fourth limiting surface which is flush with the third limiting surface, and the second driving mechanism can drive the second stop block to rotate so that the fourth limiting surface moves to the first end part of the second track and is adjacent to the limiting part at the blanking station.

It is from top to bottom seen that the spacing unit of second is used for carrying on spacingly to following the first book needle that the coiling head switched to the unloading station from the coiling station to prevent that first book needle from carrying out the switching position in-process and taking place the drunkenness along self axial, thereby guarantee to roll up the needle and can take out needle unit accurate connection with opening of unloading station department.

According to another preferred scheme, the square power electric core winding machine further comprises a cutting device, wherein the cutting device comprises a cutter unit, and the cutter unit is located at the upstream end of the first winding needle at the winding station along the feeding direction; the cutter unit comprises a first mounting seat, a cutter seat, a third driving mechanism and a first pressing mechanism, a first guide pillar and a first cutter are arranged on the first mounting seat, the cutter seat is slidably mounted on the first guide pillar, a second cutter is arranged on the cutter seat, the third driving mechanism can drive the cutter seat to move towards the first cutter along the first guide pillar, the first pressing mechanism comprises a second guide pillar, a limiting plate, a pressing plate and a spring, the second guide pillar is parallel to the first guide pillar, the second guide pillar is slidably connected with the first mounting seat along the axial direction of the second guide pillar, the limiting plate and the pressing plate are respectively fixed at two ends of the second guide pillar, the cutter seat is located between the limiting plate and the pressing plate, the pressing plate is located between the cutter seat and the first cutter, the spring drives the pressing plate to move towards the first cutter along the second guide pillar, and the limiting plate can move towards the cutter seat along the second.

It can be seen from above that hold-down mechanism is used for the cutter unit to compress tightly the pole piece in the process of cutting the pole piece to prevent that the pole piece from taking place to remove in the process of cutting, and avoid cutting out too much and too big the border burr of pole piece. And through the linkage design between hold-down mechanism and the cutter seat for can be compressed tightly before cutting at the antipole piece, can also avoid the pole piece because by excessive extrusion and damage.

Another preferred scheme is that, square power electricity core winder still includes deviation correcting device, along the direction of feed, deviation correcting device is located the upper reaches end of coiling station, deviation correcting device includes first fixing base, the mounting bracket, first sliding seat, first drive unit and floating roll, be provided with first guide rail on the first fixing base, mounting bracket fixed mounting is on first fixing base, first sliding seat slidable mounting is on first guide rail, first drive unit drives first sliding seat and slides along first guide rail, the first end and the mounting bracket ball pivot of floating roll are connected, the second end and the first sliding seat ball pivot of floating roll are connected.

Therefore, the deviation correcting device is used for correcting the position of the pole piece, and the alignment degree of the battery cell wound by the winding device is ensured.

Another preferred scheme is that the square power electric core winder further comprises a pole piece cutting and rubberizing device, the pole piece cutting and rubberizing device is located at the upstream end of the winding station along the feeding direction, the pole piece cutting and rubberizing device comprises a first clamping unit, a second clamping unit, a moving unit, a cutting unit and a first rubberizing unit, the first clamping unit is installed on the rack and comprises a clamping piece mechanism and a fourth driving mechanism, the fourth driving mechanism drives the pole piece mechanism to move along the first direction, the second clamping unit is installed on the rack and is distributed along the first direction, the moving unit is installed on the rack and comprises a fifth driving mechanism, the cutting unit and the first rubberizing unit are distributed along the first direction, the cutting unit and the first rubberizing unit are connected with the output end of the fifth driving mechanism, and the fifth driving mechanism can drive the cutting unit and the first rubberizing unit to clamp the first clamping unit and the second rubberizing unit along the first direction The elements are moved between.

Therefore, the cutting unit and the rubberizing unit can keep moving simultaneously due to the design, so that the time for the rubberizing unit to wait for the cutting unit to avoid is eliminated, the rubberizing unit can move simultaneously with the avoidance of the cutting unit, and the production efficiency is improved; the cutting unit and the rubberizing unit are arranged in a staggered mode in the normal direction of the pole piece, so that the rubberizing unit does not need to reserve an overlarge space to avoid the cutting unit, the overall structure of the pole piece cutting and rubberizing device is more compact, and the layout is more reasonable.

Another preferred scheme is that the square power electric core winder further comprises a pole piece single-roll rubberizing device, the pole piece single-roll rubberizing device comprises a second mounting seat, a winding unit, a second driving unit and a second rubberizing unit, a second guide rail parallel to the first roll needle is arranged on the second mounting seat, the winding unit comprises a second sliding seat, a second roll needle, a sixth driving mechanism, a second pressing mechanism and a seventh driving mechanism, the second sliding seat is slidably mounted on the second guide rail, the second roll needle is rotatably mounted on the second sliding seat and parallel to the first roll needle, the sixth driving mechanism drives the second roll needle to rotate, the second roll needle is located at the upstream end of the first roll needle along the feeding direction and is provided with two needle bodies which are oppositely arranged, a pole piece channel is formed between the two needle bodies, the second pressing mechanism comprises a rotating shaft and a pressing wheel, the rotating shaft is rotatably mounted on the second sliding seat, the pinch roller is rotationally installed in the pivot and is close to one of needle body and serve, and the axis of pinch roller sets up with the axis of pivot stagger, and pinch roller and pivot all are on a parallel with the second and roll up the needle, and seventh actuating mechanism drive pivot rotates, and second drive unit drive second sliding seat slides along the second guide rail, and the execution end of second rubberizing unit can move to second book needle department.

Therefore, the winding space of the second winding needle is better released by the structural design of the winding unit, the second winding needle can wind the defective pole pieces with large length, the defective pole pieces with large length are prevented from being removed and needing to be wound in multiple times, and the production efficiency is improved. Secondly, the structural design of the winding unit also makes the entering of the defective pole piece easier. Moreover, the structural design of the second pressing mechanism enables the defective pole pieces in the winding process and the wound defective pole pieces to be more reliably pressed, and the second winding needle is assisted to terminate the defective pole pieces, so that the wound defective pole pieces are prevented from being scattered.

Another preferred scheme is that the square power electric core winder further comprises a tension control device, the tension control device is located at the upstream end of the winding station along the feeding direction, the tension control device comprises a third mounting seat, a tension detector, a linear motor, a third sliding seat, a second transmission roller and a third transmission roller, a third guide rail is arranged on the third mounting seat, the tension detector is located at one end of the third guide rail, a first transmission roller is arranged at the detection end of the tension detector, the linear motor comprises a stator and a rotor, the stator is mounted on the third mounting seat and extends along the third guide rail, the rotor is slidably arranged on the stator along the extending direction of the stator, the third sliding seat is fixedly connected with the rotor, the third sliding seat is slidably connected with the third guide rail, the second transmission roller is mounted on the third sliding seat, the second transmission roller is parallel to the first transmission roller, the third transmission roller is mounted on the third sliding seat, the third driving roller is parallel to the first driving roller.

Therefore, the tension control device is used for adjusting the tension of the pole piece, and the problem of tension fluctuation in the tension adjusting process is avoided, so that the diameter of the wound battery cell can meet the production requirement, and the roundness of the wound battery cell is prevented from exceeding the standard.

The square power electric core winding machine further comprises a dust removal system, the dust removal system comprises a dust cover, a dust collection unit, a pipeline unit, a dust collection unit and a fan filter unit, the dust cover covers the installation panel of the frame, a dust removal space is formed between the dust cover and the installation panel, the dust collection unit is arranged in the dust removal space, the dust collection unit is provided with a suction end, the pipeline unit is communicated with the dust collection unit and the dust collection unit, the fan filter unit is installed at the top of the dust cover, an air inlet end of the fan filter unit is communicated with the dust removal space, and an air outlet end of the fan filter unit is located outside the dust removal space.

Therefore, the dust removal system can avoid external dust from polluting the pole piece and the diaphragm, and can remove particles such as scraps, dust and the like generated in the production process of the battery cell, so that the quality of the battery cell at a production position is ensured.

Drawings

Fig. 1 is a partial structural block diagram of a square power electric core winder according to an embodiment of the present invention, with parts omitted.

Fig. 2 is a structural diagram of a winding device according to an embodiment of the square power electric core winding machine of the present invention.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a structural diagram of a first limiting unit of the square power electric core winder of the present invention.

Fig. 5 is a relative position relationship diagram of the first limiting unit and the first winding pin of the square power electric core winding machine of the present invention.

Fig. 6 is a relative position relationship diagram of the first rail, the second rail and the limiting member of the square power electric core winding machine according to the embodiment of the present invention.

Fig. 7 is a first state reference diagram of a guide device of an embodiment of the square power core winder of the present invention.

Fig. 8 is a structural view of a guide device of an embodiment of the square power electric core winder of the present invention.

Fig. 9 is a second state reference diagram of a guide device of an embodiment of the square power core winder of the present invention.

Fig. 10 is a third state reference diagram of the guiding device of the square power electric core winder embodiment of the present invention.

Fig. 11 is a structural diagram of a cutting device of an embodiment of the square power electric core winder of the present invention.

Fig. 12 is a structural view of the cutting device of the embodiment of the square power electric core winder of the present invention, with some components omitted.

Fig. 13 is a structural diagram of a deviation rectifying device of an embodiment of the square power electric core winding machine of the present invention.

Fig. 14 is a first structural diagram of a pole piece cutting and rubberizing device according to an embodiment of the square power core winder of the present invention.

Fig. 15 is a second structural view of a pole piece cutting and rubberizing device of an embodiment of the square power electric core winder of the present invention.

Figure 16 is a block diagram of a cutting unit of an embodiment of the square power core winder of the present invention.

Fig. 17 is a structural view of a first rubberizing unit of an embodiment of the square power electric core winder of the present invention.

Fig. 18 is a structural diagram of a pole piece single roll rubberizing device of the square power electric core winder of the present invention.

Fig. 19 is a structural diagram of the pole piece single roll rubberizing device of the square power electric core winder of the present invention, with some components omitted.

Fig. 20 is a partial view of a pole piece single roll rubberizing device of an embodiment of the square power core winder of the present invention.

Fig. 21 is an enlarged view at B in fig. 19.

Fig. 22 is a structural view of a tension control device according to an embodiment of the square power core winder of the present invention.

Fig. 23 is a structural diagram of a dust removing system of an embodiment of the square power electric core winder of the present invention.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1, a square power electric core winder 100 comprises a frame 10, a winding device 1, a guide device 2, a cutting device 3, a deviation correcting device 4, a pole piece cutting and rubberizing device 5, a pole piece single-roll rubberizing device 6, a tension control device 7 and a dust removing system 8. Along the tape moving direction of the pole piece, namely the feeding direction of the first winding needle 12, the pole piece sequentially passes through the pole piece cutting and rubberizing device 5, the deviation correcting device 4, the tension control device 7, the cutting device 3, the pole piece single-roll rubberizing device 6, the guide device 2 and the winding device 1.

With reference to fig. 2, the winding device 1 comprises a winding head 11, a first winding needle 12, a first stop unit 13, a second stop unit 14, a reversing unit 15, a fourth drive unit 16, a push-close needle unit 17 and a withdrawal needle unit 18. The winding device 1 has a winding station 101, a gluing station 102 and a blanking station 103, and the positions of the winding station 101, the gluing station 102 and the blanking station 103 are fixed relative to the frame 10. The winding device 1 is used for winding the battery core at a winding station 101 in cooperation with an insertion device and a cutting device 3 of the square power battery core winder 100, is also used for gluing the pole piece at a gluing station 102 in cooperation with a glue-stopping device of the square power battery core winder 100, and is also used for detaching the wound and glued battery core from the first winding needle 12 at a discharging station 103 in cooperation with a discharging device of the square power battery core winder 100.

The winding head 11 is rotatably mounted on the frame 10 around its own axis, the number of the first winding needles 12 is three, the three first winding needles 12 are mounted on the winding head 11, and the first winding needles 12 can slide relative to the winding head 11 along its own axial direction and can also rotate relative to the winding head 11 around its own axial direction. The first winding needle 12 is provided with a limiting member, the first winding needle 12 is connected with the winding head 11 through a drawing and inserting needle rod on the first winding needle 12, the fourth driving unit 16 is used for driving each first winding needle 12 to rotate independently, the reversing unit 15 is used for driving the winding head 11 to rotate relative to the frame 10, so that the winding head 11 drives the three first winding needles 12 on the winding head to rotate along the rotation direction R, and each first winding needle 12 moves among the winding station 101, the rubberizing station 102 and the blanking station 103, so that the position switching of the first winding needle 12 is realized, and the driving unit is used for driving each first winding needle 12 to rotate. Wherein the winding head 11 rotates by an angle of 120 ° at each commutation.

Referring to fig. 3 to 5, the first stopper unit 13 includes a first rail 131, a first stopper 132, and a first driving mechanism 133. The first rail 131 is installed on the frame 10 and located at the front end of the winding head 11, the first rail 131 extends from the winding station 101 to the blanking station 103 along the rotation direction R of the winding head 11, a first limiting surface 1311 is formed on one surface of the first rail 131 facing the front end of the winding head 11, and the first limiting surface 1311 is used for being matched with a limiting member of the first winding needle 12 to limit the first winding needle 12, so that the first winding needle 12 cannot move along the axial direction of the first winding needle 12 in the process of switching from the winding station 101 to the blanking station 103. As shown in fig. 6, along the axial direction of the winding head 11, the projection of the first end of the first rail 131 is staggered from the projection of the limiting member of the first winding needle 12 located at the winding station 101, and the projection of the second end of the first rail 131 is staggered from the projection of the limiting member of the first winding needle 12 located at the blanking station 103, so that the first rail 131 does not interfere with the needle withdrawing of the first winding needle 12 at the winding station 101, the first winding needle 12 at the winding station 101 is prevented from colliding with the first rail 131, the first rail 131 is prevented from interfering with the needle withdrawing of the first winding needle 12 at the blanking station 103, and the first winding needle 12 at the blanking station 103 is prevented from colliding with the first rail 131.

The first block 132 is hinged to the first rail 131 and located at the first end of the first rail 131, the first block 132 has a first limiting portion 1321, the first limiting portion 1321 has a second limiting surface 1322, and the second limiting surface 1322 is flush with the first limiting surface 1311. The first driving mechanism 133 is configured to drive the first block 132 to rotate, so that the first limiting portion 1321 rotates to the first end portion of the first rail 131 around the hinge shaft of the first block 132 and faces the limiting member of the first winding pin 12 at the winding station 101, so that the limiting member is adjacent to the second limiting surface 1322. The first driving mechanism 133 is a first cylinder, a cylinder body of the first cylinder is hinged to the first rail 131, and a rod body of the first cylinder is hinged to the first stopper 132.

The first rail 131 is matched with the limiting member on the first winding needle 12, so that the limiting member can enter the first limiting surface 1311 of the first rail 131 and abut against the first limiting surface 1311 in the process that the first winding needle 12 is switched from the winding station 101 to the blanking station 103 along with the winding head 11, the first limiting surface 1311 limits the first winding needle 12 through the limiting member, and therefore the first winding needle 12 is prevented from shifting along the axial direction during the position switching process, and the first winding needle 12 can be smoothly connected with the needle opening and drawing unit 18 at the blanking station 103. In addition, the cooperation of first track 131 and locating part can also be spacing this first book needle 12 when this first book needle 12 is in rubberizing station 102 department, avoids electric core to carry out the rubberizing processing in-process in rubberizing station 102 department, and first book needle 12 is along self axial float, has guaranteed the rubberizing quality of electric core. Furthermore, the first stopper 132 can guide the limiting member, so that the limiting member can smoothly enter the first limiting surface 1311 of the first rail 131 without colliding with the first rail 131, and the first driving mechanism 133 can avoid the first winding needle 12 by driving the first stopper 132 to rotate, so as to avoid the first winding needle 12 at the winding station 101 colliding with the first stopper 132 when the first winding needle is discharged.

The second stopper unit 14 includes a second rail 141, a second stopper 142, and a second driving mechanism 143. The second rail 141 is mounted on the frame 10 and located at the end of the winding head 11, the second rail 141 extends from the blanking station 103 to the winding station 101 along the rotation direction R of the winding head 11, a third limiting surface 1411 is formed on a surface of the second rail 141 facing the end of the winding head 11, and the third limiting surface 1411 is used for cooperating with a limiting member of the first winding needle 12 to limit the first winding needle 12, so that the first winding needle 12 does not move along the axial direction thereof in the process of switching from the blanking station 103 to the winding station 101. As shown in fig. 6, along the axial direction of the winding head 11, the projection of the first end of the second rail 141 is staggered from the projection of the limiting member of the first winding needle 12 located at the blanking station 103, and the projection of the second end of the second rail 141 is staggered from the projection of the limiting member of the first winding needle 12 located at the winding station 101, so that the second rail 141 does not interfere with the needle withdrawing of the first winding needle 12 at the blanking station 103, the first winding needle 12 and the second rail 141 at the blanking station 103 are prevented from colliding with each other, the second rail 141 does not interfere with the needle withdrawing of the first winding needle 12 at the winding station 101, and the first winding needle 12 and the second rail 141 at the winding station 101 are prevented from colliding with each other.

The second stopper 142 is hinged to the second rail 141 and located at a first end of the second rail 141. The second stopper 142 has a second position-limiting portion, the second position-limiting portion has a fourth position-limiting surface 1422, and the fourth position-limiting surface 1422 is flush with the third position-limiting surface 1411. The second driving mechanism 143 is configured to drive the second stopper 142 to rotate, so that the second limiting portion rotates to the first end portion of the second rail 141 around the hinge shaft of the second stopper 142, and faces the limiting member of the first winding needle 12 at the blanking station 103, and the limiting member is adjacent to the fourth limiting surface 1422. The second driving mechanism 143 is a second cylinder, a cylinder body of the second cylinder is hinged to the second rail 141, and a rod body of the second cylinder is hinged to the second stopper 142.

The second rail 141 is matched with the limiting part on the first winding needle 12, so that the limiting part can enter the third limiting surface 1411 of the second rail 141 and abut against the third limiting surface 1411 in the process that the first winding needle 12 is switched from the blanking station 103 to the winding station 101 along with the winding head 11, the third limiting surface 1411 limits the first winding needle 12 through the limiting part, and therefore the first winding needle 12 is prevented from shifting along the axial direction of the first winding needle 12 in the position switching process, and the first winding needle 12 can be smoothly connected with the push-close needle unit 17 at the winding station 101. In addition, the second stopper 142 can guide the limiting member, so that the limiting member can smoothly enter the third limiting surface 1411 of the second rail 141 without colliding with the second rail 141, and the second driving mechanism 143 can avoid the first winding needle 12 by driving the second stopper 142 to rotate, so as to avoid the first winding needle 12 at the blanking station 103 from colliding with the second stopper 142 during needle withdrawing.

The push-close needle unit 17 is provided at the winding station 101, and the push-close needle unit 17 is located at the end of the winding head 11. The pushing-closing needle unit 17 is used for pushing the first winding needle 12 located at the winding station 101 out to the front end of the winding head 11, and controlling two needle bodies of the first winding needle 12 to be closed to clamp the pole piece and the diaphragm after the pole piece and the diaphragm pass through the first winding needle 12.

The open draw pin unit 18 is provided at the blanking station 103, and the open draw pin unit 18 is located at the end of the winding head 11. The needle opening and drawing unit 18 is configured to control two needle bodies of the first winding needle 12 at the blanking station 103 to open to release clamping of the pole piece and the diaphragm, and draw back the first winding needle 12 from the front end of the winding head 11 after the first winding needle 12 releases clamping of the pole piece and the diaphragm, so as to cooperate with a blanking device to strip the battery cell on the first winding needle 12 from the first winding needle 12, and complete blanking processing of the battery cell on the first winding needle 12.

Referring to fig. 7 to 10, the guide 2 includes a pressing roller 21 and an XY-axis driving unit. The pressing roller 21 is arranged parallel to the first winding needle 12, and the pressing roller 21 is used for guiding the membrane on the first winding needle 12 in the process of switching the first winding needle 12 from the winding station 101 to the rubberizing station 102, so that the first winding needle 12 switched from the blanking station 103 to the winding station 101 can reliably clamp the membrane at the winding station 101. Wherein the pressure roller 21 has a first position and a second position, the first position being located at the upstream end of the winding station 101 in the feeding direction of the first winding needle 12, i.e. in the transport direction of the membrane, pole pieces, of the first winding needle 12 at the winding station 101. Furthermore, the second position is located between the taping station 102 and the winding station 101 in the feeding direction of the first winding needle 12.

The XY-axis driving unit comprises an X-axis driving mechanism 22 and a Y-axis driving mechanism 23, the press roller 21 is connected with the output end of the X-axis driving mechanism 22, the X-axis driving mechanism 22 is used for driving the press roller 21 to move along the X axis, the X-axis driving mechanism 22 is connected with the output end of the Y-axis driving mechanism 23, the Y-axis driving mechanism 23 is used for driving the X-axis driving mechanism 22 and the press roller 21 to move along the Y axis, the X axis is perpendicular to the Y axis, and the linkage between the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 can drive the press roller 21 to perform position switching between a first position and a second position. Through the structural design of the guide device 2, when the winding head 11 of the winding device 1 drives the first winding needle 12 to switch the stations, the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 of the guide device 2 can be linked simultaneously to drive the pressing roller 21 to move to the first position and then to the second position, so that the pressing roller 21 can guide the diaphragm on the first winding needle 12 moved to the rubberizing station 102 from the winding station 101, and the first winding needle 12 moved to the winding station 101 from the blanking station 103 can accurately and reliably clamp the guided diaphragm. In addition, the guide device 2 and the winding device 1 can work simultaneously through the structural design of the guide device 2, the total time of winding processing of a single battery cell is reduced, meanwhile, the waiting time of other devices of the battery cell winding machine when the winding device 1 is reversed is reduced, the winding efficiency of the winding device 1 is improved, and the production efficiency of the battery cell winding machine provided with the guide device 2 can be improved.

Specifically, the Y-axis drive mechanism 23 includes a first motor 231 and a first ball screw 232. The first motor 231 is fixedly mounted on the frame 10, and a motor shaft of the first motor 231 is parallel to the Y-axis. The screw shaft of the first ball screw 232 and the motor shaft of the first motor 231 are coaxially arranged, and the nut of the first ball screw 232 is connected with the X-axis driving mechanism 22, so that the first motor 231 can drive the X-axis driving mechanism 22 to precisely move along the Y-axis direction through the first ball screw 232.

The X-axis driving mechanism 22 includes a third cylinder 221 and a connecting seat 222, the connecting seat 222 is fixedly connected to a rod of the third cylinder 221, and the rod of the third cylinder 221 is parallel to the X-axis. The press roller 21 is rotatably mounted on the coupling base 222 about its own axis so that the third air cylinder 221 can drive the press roller 21 to move along the X-axis through the coupling base 222. Wherein the X axis is vertical to the Y axis,

preferably, the first position and the second position form a first connection line L1 (see fig. 10), the first connection line L1 is parallel to the Y axis, and the winding station 101 is located on the first connection line L1, and by designing the relative positions of the first position, the second position and the winding station 101, the first winding needle 12 rotating from the blanking station 103 to the winding station 101 can further clamp the guided membrane accurately and reliably at the winding station 101, so that the structural layout of the guide device 2 and the cell winding machine provided with the guide device 2 can be more reasonable and compact.

Because winding head 11 drives first winding needle 12 and carries out the station switching in-process, compression roller 21 need move earlier to the primary importance and contact with the diaphragm in order to play the guide effect to the diaphragm after, just can move to the secondary importance, consequently, compression roller 21 at this moment need move to the diaphragm with faster speed, and adopt third cylinder 221 as the driving source of X axle actuating mechanism 22 can make compression roller 21 move to primary importance department more fast, reliably and contact with the diaphragm, in order to lead the diaphragm, the winding efficiency of coiling device 1 has been improved.

When the press roller 21 moves to the first position, the press roller 21 is already in contact with the diaphragm and plays a role in guiding the diaphragm, and then the Y-axis driving mechanism 23 drives the press roller 21 at the first position to move to the second position in coordination with the rotation of the winding head 11, so that the Y-axis driving mechanism 23 has a long action time, and when the press roller 21 moves from the first position to the second position, the influence on the diaphragm needs to be avoided as much as possible and the position precision of the diaphragm needs to be ensured, therefore, a combined mechanism of the first motor 231 and the first ball screw 232 is adopted to drive the press roller 21 to move from the first position to the second position, so that the stability of the press roller 21 in the moving process can be ensured, and the influence on the winding precision of the winding device 1 caused by severe shaking of the press roller 21 can be avoided; the compression roller 21 can have higher moving precision, and the position of the diaphragm is prevented from being deviated in the moving process of the compression roller 21; and also ensures that the position of the guided separator after the pressure roller 21 has moved to the second position can meet the clamping requirements of the first winding needle 12 at the winding station 101.

The guide device 2 works as follows:

firstly, as shown in fig. 7, the separator and the pole piece are sent to a winding station 101, a first winding needle 12 at the winding station 101 is made to extend out along the axial direction of the first winding needle and clamp the separator and the pole piece, and then the first winding needle 12 starts to wind the battery core.

Next, as shown in fig. 9, after the first winding needle 12 at the winding station 101 finishes winding the separator and the pole piece of the battery core, the winding head 11 rotates by one station along its own rotation direction R, so that the first winding needle 12 at the winding station 101 moves to the rubberizing station 102, the first winding needle 12 at the rubberizing station 102 moves to the blanking station 103, and the first winding needle 12 at the blanking station 103 moves to the winding station 101.

Next, as shown in fig. 10, during the rotation of the winding head 11, the X-axis drive mechanism 22 of the guide device 2 drives the pressure roller 21 to move along the X-axis, so that the pressure roller 21 moves to the first position and abuts the diaphragm. After the press roller 21 moves to the first position, the Y-axis driving mechanism 23 drives the X-axis driving mechanism 22 and the press roller 21 to move to the rubberizing station 102 along with the rotation of the winding head 11, and before or when the winding head 11 rotates to the proper position, the press roller 21 is located at the second position, so that the guiding of the diaphragm is completed.

Then, after the winding head 11 rotates in place, the first winding pin 12 in the winding station 101 is moved to the gluing station 102 to prepare for gluing the battery cell rolled on the first winding pin 12; the first winding needle 12, which is originally located at the blanking station 103, is then moved to the winding station 101, and then the first winding needle 12 extends out of the winding head 11 along its own axis to clamp the membrane and the pole piece located at the winding station 101.

Next, the cutting end of the electrical core winder for cutting the separator cuts the separator between the winding station 101 and the second position.

Then, the first winding needle 12 at the rubberizing station 102 performs ending and rubberizing on the diaphragm and the pole piece, and the first winding needle 12 at the winding station 101 performs winding of a new cell, the X-axis driving mechanism 22 of the guide device 2 drives the pressing roller 21 to move in the reverse direction along the X axis to perform resetting, and after the X-axis driving mechanism 22 drives the pressing roller 21 to complete resetting, the Y-axis driving mechanism 23 drives the X-axis driving mechanism 22 and the pressing roller 21 to move in the reverse direction along the Y axis to perform resetting until the pressing roller 21, the X-axis driving mechanism 22 and the Y-axis driving mechanism 23 return to the initial positions, and resetting of the guide device 2 is completed.

With reference to fig. 11 and 12, the cutting device 3 includes a cutter unit 31 and a third driving unit, the third driving unit is configured to drive the cutter unit 31 to move along with the pole piece to cut off the pole piece, so that the first winding needle 12 at the winding station 101 can terminate the pole piece.

The cutter unit 31 includes a mounting seat 311, a cutter seat 312, a third drive mechanism 313, and a first pressing mechanism 314. The mounting base 311 is fixedly installed on an output end of the third driving unit, and the mounting base 311 is provided with a first guide post 3111 and a first cutter 3121. The cutter holder 312 is slidably connected to the first guide post 3111 along the extending direction of the first guide post 3111, the cutter holder 312 is provided with a second cutter 3121, and the blade portion of the first cutter 3121 and the blade portion of the second cutter 3121 are disposed opposite to each other. Third actuating mechanism 313 adopts the fourth cylinder, and the body of rod and the connecting block 3122 fixed connection of cutter seat 312 of fourth cylinder, and the fourth cylinder is used for driving cutter seat 312 and removes to second cutter 3121 along first guide pillar 3111 for second cutter 3121 cooperates first cutter 3121 to cut the pole piece. The first pressing mechanism 314 includes a second guide post 3131, a limit plate 3142, a pressing plate 3143 and a spring 3144, the second guide post 3131 is parallel to the first guide post 3111, the second guide post 3131 is slidably connected to the mounting seat 311 along its axial direction, wherein the limit plate 3142 and the pressing plate 3143 are respectively fixed at two ends of the second guide post 3131, the cutter seat 312 is located between the limit plate 3142 and the pressing plate 3143, and the pressing plate 3143 is located between the cutter seat 312 and the first cutter 3121. The spring 3144 drives the pressing plate 3143 to move along the second guide post 3131 toward the first cutting blade 3121, and the stopper plate 3142 is elastically urged by the spring 3144 to abut against the cutter holder 312 along the second guide post 3131 and the connecting block 3122 of the cutter holder 312. Wherein, the moving distance of the pressing plate 3143 moving to the first cutting knife 3121 is less than the moving distance of the cutting edge of the second cutting knife 3121 moving to the cutting edge of the first cutting knife 3121.

When the cutter unit 31 is in the non-cutting state (initial state), the rod body of the fourth cylinder is in the retracted state, and at this time, the cutter holder 312 is in the lifted state, and the second cutter 3121 is away from the first cutter 3121. Meanwhile, the limit plate 3142 abuts against the connection block 3122 of the cutter holder 312, so that the connection block 3122 drives the pressure plate 3143 to be lifted together by the limit plate 3142 and the second guide pillar 3131, the pressure plate 3143 is away from the first cutter 3121, and the spring 3144 is compressed, and the pole piece passes through the cutter unit 31 between the first cutter 3121 and the second cutter 3121.

When the pole piece needs to be cut, the rod body of the fourth cylinder extends out and drives the cutter seat 312 to move downwards, so that the second cutter 3121 on the cutter seat 312 moves towards the first cutter 3121, and the pole piece is cut. While the second cutting blade 3121 moves toward the first cutting blade 3121, the pressing plate 3143 moves toward the first cutting blade 3121 by the elastic force of the spring 3144 as the cutter holder 312 moves downward. Since the moving distance of the pressing plate 3143 to the first cutting knife 3121 is less than the moving distance of the cutting edge of the second cutting knife 3121 to the cutting edge of the first cutting knife 3121, the pressing plate 3143 moves to press the pole piece first under the elastic force of the spring 3144. At this time, the cutting edge of the second cutting knife 3121 does not reach the cutting edge of the first cutting knife 3121, and therefore, the fourth air cylinder continues to drive the cutting knife holder 312 to move downward until the cutting edge of the second cutting knife 3121 is matched with the cutting edge of the first cutting knife 3121 to cut the pole piece.

When the pole piece is cut off, the fourth cylinder retracts and resets, and drives the cutter holder 312 to lift, so that the second cutter 3121 on the cutter holder 312 moves back to the first cutter 3121. While the second cutting knife 3121 moves away from the first cutting knife 3121, the cutting edge of the second cutting knife 3121 is disengaged from the cutting edge of the first cutting knife 3121, and at this time, the pole piece is still pressed by the pressing plate 3143. As the cutter holder 312 continues to be lifted, the connecting block 3122 of the cutter holder 312 contacts the limiting plate 3142 to lift the pressing plate 3143 by the second guide post 3131, so that the pressing plate 3143 is away from the first cutter 3121, thereby releasing the compression on the pole piece and compressing the spring 3144. When the fourth cylinder is completely reset, the cutter unit 31 is in an initial state. Through the structure design, the pressing unit and the cutter seat 312 can be linked and move independently, so that the pole piece is effectively prevented from being excessively extruded in the pole piece pressing process, the pole piece is prevented from being damaged, and the quality of a wound battery cell is ensured.

With reference to fig. 13, the deviation correcting device performs position deviation correction on the pole piece to ensure that the alignment degree of the electric core wound by the winding device can meet the production requirement.

Specifically, the deviation correcting device 4 includes a first fixed seat 41, a mounting frame 42, a first sliding seat 43, a floating roller 44, a fixed roller 45, and a first driving unit 46. Wherein, the first fixing seat 41 is provided with a first guide rail 411, the first guide rail 411 is a linear slide rail, and the first sliding seat 43 is slidably mounted on the first guide rail 411 along the extending direction of the first guide rail 411.

The mounting frame 42 is fixedly mounted on the first fixed seat 41, and the mounting frame 42 is used for cooperating with the first sliding seat 43 to support the floating roller 44. Specifically, a first end of the floating roller 44 is connected with the mounting frame 42 in a spherical hinge manner, and a second end of the floating roller 44 is connected with the first sliding seat 43 in a spherical hinge manner, so that the floating roller 44 can swing relative to the mounting frame 42 and the first sliding seat 43 respectively, and the floating roller 44 can rotate relative to the mounting frame 42 and the first sliding seat 43, that is, the floating roller 44 has the capability of swinging and rotating around the axis of the floating roller 44.

In addition, the floating roller 44 is further provided with a scribed line, and the scribed line is used for positioning the pole piece for the first time, namely when the pole piece is wound on the deviation correcting device 4 for the first time, the edge of one side of the pole piece is aligned with the scribed line on the floating roller 44, so that when the pole piece is wound on the deviation correcting device 4 for the first time, the position of the pole piece is accurate and has no deviation, and the situation that the pole piece needs to be subjected to position deviation correction when the deviation correcting device 4 is just started for use is avoided.

In this embodiment, the fixed roller 45 is stationary relative to the first fixed seat 41, and when the deviation rectifying device 4 is in the initial state, the axis of the floating roller 44 is perpendicular to the mounting surface of the first fixed seat 41, and the axis of the fixed roller 45 is parallel to the axis of the floating roller 44. Further, the fixed roller 45 and the floating roller 44 are distributed along the extending direction of the first guide rail 411, or the fixed roller 45 and the floating roller 44 are distributed along the direction parallel to the extending direction of the first guide rail 411. The deviation correcting device 4 has a pole piece channel, and the pole piece channel passes through the fixed roller 45 and the floating roller 44, that is, a channel for conveying the pole piece is formed between the fixed roller 45 and the floating roller 44.

Preferably, the number of the fixed rollers 45 is one more than that of the floating rollers 44, and the fixed rollers 45 and the floating rollers 44 are arranged at intervals along the pole piece channel, that is, when the pole piece is threaded, the pole piece is threaded through the fixed rollers 45 at the head end of the pole piece channel and threaded through the fixed rollers 45 at the tail end of the pole piece channel, and the number of the fixed rollers 45 is one more than that of the floating rollers 44, so that the two fixed rollers 45 at the head end and the tail end of the pole piece channel can guide the pole piece passing through the deviation correcting device 4. In addition, deviation correcting device 4 is through configuring fixed roll 45 by oneself, cooperation dancer 44 that fixed roll 45 can be better is practical, when making the pole piece remove between fixed roll 45 and dancer 44, the frictional coefficient between pole piece and the fixed roll 45, the frictional coefficient between pole piece and the dancer 44 can keep unanimous, can not take place to be dragged or the phenomenon that the pine takes off when guaranteeing the pole piece around fixed roll 45 and dancer 44, thereby improved deviation correcting device 4 and carried out the reliability of position rectifying to the pole piece, and play the guard action to the pole piece. Of course, the utility model provides a deviation correcting device 4 can cooperate external fixed roll 45 to use under the condition that does not dispose fixed roll 45 by oneself.

Similarly, the fixed roller 45 is also provided with a positioning groove for positioning the pole piece for the first time, when the pole piece is wound on the deviation correction device 4 for the first time, the edge of one side of the pole piece is aligned with the groove on the floating roller 44, and when the pole piece is wound on the fixed roller 45 for the first time, the position of the pole piece can be accurately and non-deviated, so that the situation that the pole piece needs to be subjected to position deviation correction when the deviation correction device 4 is just started for use is avoided.

The first driving unit 46 is used for driving the first sliding seat 43 to slide along the extending direction of the first guide rail 411, and in this embodiment, the first driving unit 46 includes a second ball screw 462 and a second motor 461. The second ball screw 462 includes a screw rod and a nut, the screw rod is rotatably mounted on the first fixing base 41 around the axial direction thereof, and the screw rod is parallel to the first guide rail 411. The screw is in threaded connection with the nut, and the nut is fixedly connected with the first sliding seat 43. The second motor 461 is used for driving the screw to rotate, so that the screw drives the nut to move along the axial direction of the screw, and the nut drives the first sliding seat 43 to slide along the first guide rail 411, so as to drive the floating roller 44 to swing around the first end of the screw, so that the pole piece moves along the axial direction of the floating roller 44, the position of the pole piece is adjusted, and the purpose of correcting the position of the pole piece is achieved. The second ball screw 462 has high transmission precision and stable transmission, and the first driving unit 46 drives the first sliding seat 43 to slide by adopting the mode that the second ball screw 462 is matched with the second motor 461, so that the movement precision of the first sliding seat 43 can be better controlled, the vibration generated when the first sliding seat 43 moves is reduced, and the deviation rectification precision of the deviation rectification device 4 is effectively improved. The second motor 461 and the lead screw of the second ball screw 462 are linked through a timing belt and a timing pulley, so that the second motor 461 drives the lead screw of the second ball screw 462 to rotate.

The following describes the operation of the deviation correcting device 4:

when the pole piece threading is required to be performed on the deviation correcting device 4, the pole piece is threaded according to a pole piece threading mode shown in fig. 13, so that the pole piece is wound on the floating roller 44 and the fixed roller 45. Then, the edge of one side of the pole piece is respectively aligned with the scribed line on the floating roller 44 and the scribed line on the fixed roller 45, and the axis of the floating roller 44 is ensured to be vertical to the mounting surface of the first fixed seat 41, even if the axis of the floating roller 44 is arranged in a horizontal state.

When the deviation correcting device 4 starts to work, the pole piece flows through the deviation correcting device 4 under the traction of the external traction mechanism, a position sensor used for detecting the position of the pole piece monitors the edge of the pole piece in real time, detection data obtained by monitoring are sent to a background controller, and the background controller judges whether the position of the pole piece deviates or not according to the detection data. When the position of the pole piece deviates, the background controller sends a control signal to the first driving unit 46, so that the first driving unit 46 controls the first sliding seat 43 to slide along the first guide rail 411 according to the control signal, and the floating roller 44 swings around the first end of the floating roller 44, so that the pole piece moves along the axis of the floating roller 44, and the position of the pole piece is corrected.

Referring to fig. 14 and 15, the pole piece cutting and rubberizing device includes a first clamping unit 51, a second clamping unit 52, a moving unit 53, a cutting unit 54, and a first rubberizing unit 555.

The first clamping unit 51 and the second clamping unit 52 are both mounted on the frame and distributed along a first direction, the first direction is also a pole piece feeding direction of a pole piece cutting and rubberizing device, and the first clamping unit 51 and the second clamping unit 52 cooperate to clamp the pole piece. The first clamping unit 51 includes a clamping piece mechanism 511 and a fourth driving mechanism 512, the fourth driving mechanism 512 is a fifth cylinder, and the fifth cylinder drives the pole piece mechanism to move toward or away from the second clamping unit 52. The clamping piece mechanism 511 comprises a sixth cylinder and two oppositely arranged clamping plates, and the sixth cylinder drives the two clamping plates to move oppositely or back to back so as to clamp or loosen the pole piece. The second clamping unit 52 is fixedly mounted on the frame, the second clamping unit 52 includes a seventh cylinder and two oppositely disposed clamping bars, and the seventh cylinder drives the two clamping bars to move in opposite directions or in opposite directions, so as to clamp or release the pole piece.

The moving unit 53 is configured to drive the cutting unit 54 and the first rubberizing unit 55 to move, so that after the cutting unit 54 cuts the pole piece, the cutting unit 54 is controlled to avoid the first rubberizing unit 55, and at the same time, the pole piece cut by the first rubberizing unit 55 is driven to rubberize.

Specifically, as shown in fig. 15, the moving unit 53 includes a fourth guide rail 531, a fourth sliding seat 532, a fifth driving mechanism 533, and an eighth driving mechanism 534, wherein the fourth guide rail 531 is mounted on the chassis 10, and the fourth guide rail 531 extends in the first direction X1. The fourth sliding seat 532 is slidably connected to the fourth guide rail 531 along an extending direction of the fourth guide rail 531, a fifth guide rail 5321 is disposed on the fourth sliding seat 532, the fifth guide rail 5321 extends along a second direction X2, and the second direction X2 is perpendicular to the first direction X1 and the mounting surface of the rack 10, respectively.

The fifth driving mechanism 533 includes a third motor 5331 and a third ball screw 5332, the third motor 5331 is fixedly mounted on the frame 10, the third ball screw 5332 is parallel to the first direction X1, an end of a screw of the third ball screw 5332 is connected to a motor shaft of the third motor 5331, so that the third motor 5331 can drive the screw of the third ball screw 5332 to rotate, and a nut of the third ball screw 5332 is fixedly connected to the fourth sliding block 532, so that the third motor 5331 can drive the fourth sliding block 532 to slide along the fourth guide rail 531 via the third ball screw 5332.

The eighth driving mechanism 534 includes a second fixed base 5341, a fifth sliding base 5342, a fourth motor 5343, and a fourth ball screw 5344. The second fixed seat 5341 is fixedly mounted on the fourth sliding seat 532, and the fifth sliding seat 5342 is slidably connected to the fifth guide rail 5321 along the extending direction of the fifth guide rail 5321. The fourth motor 5343 is fixedly mounted on the second fixed seat 5341, a lead screw of the fourth ball screw 5344 is parallel to the second direction X2, an end of the lead screw of the fourth ball screw 5344 is connected with a motor shaft of the fourth motor 5343, so that the fourth motor 5343 can drive the lead screw of the fourth ball screw 5344 to rotate, and a nut of the third ball screw 5332 is fixedly connected with the fifth sliding seat 5342, so that the fourth motor 5343 can drive the fifth sliding seat 5342 to slide along the fifth guide rail 5321 through the fourth ball screw 5344.

The cutting unit 54 is arranged on the fourth sliding seat 532, the first rubberizing unit 55 is fixedly arranged on the fifth sliding seat 5342, and the cutting unit 54 is located at the upstream end of the first rubberizing unit 55 along the sheet feeding direction of the pole piece cutting and rubberizing device 5, so that the overall structural layout of the pole piece cutting and rubberizing device 5 is optimized, the reliability of clamping a pole piece is guaranteed, and the size of the pole piece cutting and rubberizing device 5 is reduced as much as possible.

Referring to fig. 16, the cutting unit 54 includes a cutter mechanism 541 and a ninth driving mechanism 542, the ninth driving mechanism 542 is an eighth cylinder, and the ninth driving mechanism 542 is configured to drive the cutter mechanism to move along the first direction X1, so that when the first gluing unit 55 is performing the glue preparation process, the ninth driving mechanism 542 can drive the cutter mechanism 541 to be away from the first gluing unit 55 properly, thereby ensuring safe glue preparation of the first gluing unit 55; when the first rubberizing unit 55 finishes the glue preparation process, the ninth driving mechanism 542 drives the cutter to reset, and the distance between the cutter mechanism 541 and the first rubberizing unit 55 is reduced, so that the first rubberizing unit 55 can reach the cut-off position of the pole piece more quickly. The structure of the cutter mechanism 541 is the same as that of the cutter unit 31.

Referring to fig. 17, the first gluing unit 55 is mounted on the fifth sliding seat 5342, the first gluing unit 55 includes two opposite gluing mechanisms 550, the two gluing mechanisms 550 are respectively located on two opposite sides of a connection line of the first clamping unit 51 and the second clamping unit 52, and the first gluing unit 55 has a pole piece passage through which the connection line passes. The taping mechanism 550 includes a tape preparation assembly 551, a tape pressing assembly 552, a tape feeding assembly 553, a cutting assembly 554, a first drive assembly, a second drive assembly, and a position detection sensor 558. The glue preparation assembly 551 is located between the glue feeding unit and the glue pressing unit, the first driving assembly is used for driving the glue feeding assembly 553 and the cutting assembly 554 to move towards the glue pressing unit, and the second driving assembly is used for driving the glue pressing assembly 552 to move towards the glue feeding assembly 553. The glue pressing assembly 552 is used for pressing the free end of the adhesive tape delivered by the glue feeding assembly 553 on the first executing end of the glue preparing assembly 551, and the cutting assembly 554 is used for cutting the adhesive tape so that the adhesive tape is absorbed on the first executing end, thereby enabling the first executing end to move towards the pole piece channel along the third direction X3 to paste the adhesive tape on the pole piece, wherein the third direction X3 is perpendicular to the pole piece.

The position detection sensor 558 is arranged at the position of the pole piece channel, and the position detection sensor 558 is used for detecting the position of the pole piece so as to match the eighth driving mechanism 534 to adjust the position of the standby rubber plate 512, so that the standby rubber plate 512 can paste the pole piece according to the position of the pole piece, and the pasting precision of the first pasting unit 55 is improved.

It can be seen that, the structural design of the above-mentioned moving unit 53 and the connection structure and relative position arrangement of the moving unit 53 and the cutting unit 54 and the first rubberizing unit 55 enable the fifth driving mechanism 533 to drive the cutting unit 54 and the first rubberizing unit 55 to move simultaneously, and enable the cutting unit 54 and the first rubberizing unit 55 to be staggered in the normal direction of the pole piece, because the cutting unit 54 needs to avoid the first rubberizing unit 55 after cutting the pole piece, so that the first rubberizing unit 55 can perform rubberizing treatment on the cut part, therefore, the above-mentioned design brings advantages that: the first rubberizing unit 55 can move simultaneously with the cutting unit 54 to eliminate the time for the first rubberizing unit 55 to wait for the cutting unit 54 to avoid, so that the movement of the first rubberizing unit 55 can be performed simultaneously with the avoiding of the cutting unit 54, thereby improving the production efficiency.

In addition, the cutting unit 54 and the first rubberizing unit 55 are arranged in a staggered mode in the normal direction of the pole piece, so that the first rubberizing unit 55 does not need to reserve an overlarge space to avoid the cutting unit 54, the overall structure of the pole piece cutting and rubberizing device 5 is more compact, and the layout is more reasonable. Furthermore, the eighth driving mechanism 534 can cooperate with the position detection sensor 558 on the first rubberizing unit 55 to adjust the rubberizing position of the first rubberizing unit 55, so that the pole piece cutting and rubberizing device 5 can adaptively adjust the rubberizing position of the first rubberizing unit 55 according to the position of the pole piece, and the rubberizing precision of the first rubberizing unit 55 is ensured.

The pole piece single-roll rubberizing device is mainly applied to independent winding and rubberizing of defective pole pieces existing in a pole piece material roll, so that the defective pole pieces in the pole piece material roll are eliminated, the defective pole pieces are prevented from participating in winding of good product battery cores, waste of qualified pole pieces and good product diaphragms is avoided, production cost is saved, and production efficiency is improved.

Referring to fig. 18, the pole piece single roll rubberizing device includes a second mounting seat 61, a winding unit 62, a second driving unit 63, a second rubberizing unit 64, a material blocking unit 65, and a recovery unit 66. The second mounting base 61 is mounted on the rack and located inside the rack, and the second mounting base 61 is provided with a second guide rail 611, where the second guide rail 611 is arranged along the second direction X2.

The winding unit 62 includes a second sliding seat 621, a second winding needle 622, a sixth driving mechanism 623, a second pressing mechanism 624, and a seventh driving mechanism 625. The second sliding seat 621 is slidably connected to the second guide rail 611, and an output end of the second driving unit 63 is fixedly connected to the second sliding seat 621 and drives the second sliding seat 621 to slide along the second guide rail 611.

The second winding needle 622 is rotatably mounted on the second sliding seat 621 around the axis of the second winding needle, so that the second driving unit 63 can drive the second winding needle 622 to move to the outside of the mounting surface (i.e. the panel) of the rack through the second sliding seat 621 to wind the defective pole piece, and can drive the second winding needle 622 to move the wound defective pole piece to the inside of the panel through the second sliding seat 621 for gluing and recycling. The second winding needle 622 is parallel to the second guide rail 611, the second winding needle 622 has two oppositely disposed needle bodies, a pole piece channel is formed between the two needle bodies, the pole piece channel is used for accommodating and properly clamping the defective pole piece, so that when the second winding needle 622 is driven, the second winding needle 622 can wind the defective pole piece onto itself through the structure between the pole piece channel and the needle bodies. In this embodiment, the number of the second winding needles 622 is two, two second winding needles 622 are arranged in parallel on the second sliding seat 621, and the two second winding needles 622 are respectively used for winding the positive defective pole piece and the negative defective pole piece.

Referring to fig. 19, a sixth driving mechanism 623 is configured to drive the second winding needle 622 to rotate, so that the second winding needle 622 can wind the defective pole piece.

Referring to fig. 20, the number of the second pressing mechanisms 624 is two, one second pressing mechanism 624 is disposed corresponding to one second winding needle 622, and the second pressing mechanism 624 is configured to press the defective pole piece on the second winding needle 622 to prevent the defective pole piece from loosening during winding and before rubberizing. The second pressing mechanism 624 includes a rotating shaft 6241 and a pressing wheel 6242, the rotating shaft 6241 is rotatably mounted on the second sliding seat 621 around its own axis, and the rotating shaft 6241 is parallel to the second winding needle 622. One end of the rotating shaft 6241 close to the needle body of the second winding needle 622 is provided with a support arm, the support arm extends towards the rotating shaft 6241 along the radial direction of the rotating shaft 6241, the pressure wheel 6242 is rotatably mounted on the support arm around the axis of the pressure wheel 6242, and the axis of the pressure wheel 6242 is parallel to the axis of the second winding needle 622, so that the axis of the pressure wheel 6242 and the axis of the rotating shaft 6241 are arranged in a staggered manner to be in an eccentric structure, and therefore, when the rotating shaft 6241 rotates, the pressure wheel 6242 can move towards or back to the needle body of the second winding needle 622 around the axis of the rotating shaft 6241 to compress or loosen a defective pole piece on the second winding needle 622.

Referring to fig. 21, the seventh driving mechanism 625 includes a ninth cylinder 6251 and a linkage assembly 6252, the linkage assembly 6252 being coupled between an output end of the ninth cylinder 6251 and the rotating shaft 6241 such that the second driving assembly can drive the rotating shaft 6241 to rotate via the linkage assembly 6252. The number of the link assemblies 6252 is two, the two link assemblies 6252 are connected to the ninth cylinder 6251, and the one link assembly 6252 is provided corresponding to one rotating shaft 6241. Specifically, the rod body of the ninth cylinder 6251 is arranged perpendicular to the mounting plane of the second guide rail 611, the connecting rod assembly 6252 includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is fixedly connected with the rotating shaft 6241, two ends of the second connecting rod are respectively hinged to the second end of the first connecting rod and the rod body of the ninth cylinder 6251, and a non-zero included angle is formed between the first connecting rod and the second connecting rod.

The second gluing unit 64 and the winding unit 62 are located on the same side of the panel, and the second gluing unit 64 is used for gluing the defective battery cell wound by the second winding needle 622 to prevent the defective pole pieces of the defective battery cell from being scattered. The number of the second rubberizing units 64 is two, and one second rubberizing unit 64 is provided corresponding to one second winding pin 622.

The material blocking unit 65 and the second rubberizing unit 64 are separately arranged, and the material blocking unit 65 is located below the second winding needle 622. The material blocking unit 65 is used for detaching the defective battery cells wound by the winding unit 62 from the second winding needle 622, and the recovery unit 66 is used for recovering the detached defective battery cells.

Referring to fig. 22, the tension control device 71 includes a third mounting base 71, a tension detector 72, a linear motor 73, a third sliding base 74, a first driving roller 75, a second driving roller 76, and a third driving roller 77.

The third mount 71 is provided with a third rail 711, and the third slide mount 74 is slidably connected to the third rail 711 along the extending direction of the third rail 711. The third guide rail 711 preferably adopts a cross roller guide rail, and the cross roller guide rail has the advantage of high linearity, so that the third sliding seat 74 can have high moving precision when moving relative to the third guide rail 711, thereby ensuring the detection precision of the tension detector 72, reducing the vibration generated when the third sliding seat 74 slides on the third guide rail 711, reducing the tension fluctuation generated in the process of tension adjustment of materials (pole pieces or diaphragms), and ensuring the stability of the tension of the pole pieces and diaphragms in the process of winding the battery cell. Moreover, the crossed roller guide rail can also effectively reduce the friction force applied to the third sliding seat 74 in the sliding process and reduce the static friction force applied to the third sliding seat 74 in the sliding starting process.

The tension detector 72 is disposed at one end of the third guide rail 711, the detection end of the tension detector 72 is provided with a first driving roller 75, the first driving roller 75 is used for contacting with a pole piece or a diaphragm passing through the tension control device 71, so that the tension detector 72 detects the tension of the pole piece or the diaphragm through the cooperation among the first driving roller 75, the second driving roller 76 and the third driving roller 77, and meanwhile, the tension of the pole piece or the diaphragm is adjusted by combining the linear motor 73 and the third sliding seat 74.

Specifically, the linear motor 73 includes a stator 731 and a mover 732. The stator 731 is mounted on the third mount 71, and the stator 731 extends and is distributed along the extending direction of the third rail 711. The third sliding seat 74 is fixedly connected to the mover 732, the mover 732 is disposed on the stator 731, and the mover 732 slides in the extending direction of the stator 731 by the engagement between the stator 731 and the mover 732, that is, the mover 732 slides in the extending direction of the third guide rail 711, so that the third sliding seat 74 on the mover 732 slides in the extending direction of the third guide rail 711.

The second driving roller 76 is installed on the third sliding seat 74, and the second driving roller 76 is parallel to the first driving roller 75. The third driving roller 77 is installed on the third sliding seat 74, and the third driving roller 77 is parallel to the first driving roller 75.

Furthermore, as shown in fig. 22, in the projection on the cross section of the first driving roller 75, there is a first shortest internal common tangent line segment L2 between the projection of the first driving roller 75 and the projection of the second driving roller 76, and there is a second shortest internal common tangent line segment L3 between the projection of the first driving roller 75 and the projection of the third driving roller 77, wherein the length of the first shortest internal common tangent line segment L2 is preferably equal to the length of the second shortest internal common tangent line segment L3, so that the length of the pole piece or diaphragm passing between the first driving roller 75 and the second driving roller 76 is equal to the length of the pole piece or diaphragm passing between the first driving roller 75 and the third driving roller 77, so as to ensure that the force of the pole piece or diaphragm between the first driving roller 75 and the second driving roller 76 is equal to the force of the pole piece or diaphragm passing between the first driving roller 75 and the third driving roller 77, and that the force of the pole piece or diaphragm passing through the first driving roller 75, the second driving roller 76 and the third driving roller 77 can be stably driven, reduce the tension of the tension detector itself, and also ensure the detection precision of the pole piece 72.

Further, the first shortest inner common tangent line segment L2 is parallel to the second shortest inner common tangent line segment L3, and the first shortest inner common tangent line segment L2 and the second shortest inner common tangent line segment L3 are both parallel to the third guide rail 711, and by this design, the entrance end and the exit end of the pole piece or the diaphragm can be kept parallel when passing through the first driving roller 75, that is, the included angle formed between the pole pieces in the movement process is fixed (parallel), so that the tension output by the linear motor and the detected tension are in a simple multiple relationship, specifically, the tension value of the pole piece or the diaphragm measured by the tension detector 72 is closer to twice the actual tension value, that is, the tension assumed by the pole piece is 1 newton, the force borne by the linear motor is 2 newtons, so as to amplify the adjustment precision of the motor, and thereby make the accuracy of the tension value measured by the tension detector 72.

Referring to fig. 23, the dust removing system 8 includes a dust cover 81, a dust suction unit 82, a dust collection unit 83, a fan filter unit 84, and a duct unit, the dust cover 81 covers the mounting panel of the rack 10, a dust removal space 80 is formed between the dust cover 81 and the mounting panel, the dust suction unit 82 is disposed in the dust removal space 80, the dust suction unit 82 has a suction end, the duct unit communicates with the dust suction unit 82 and the dust collection unit 83, the fan filter unit 84 is mounted on the top of the dust cover 81, an air inlet end of the fan filter unit 84 communicates with the dust removal space 80, and an air outlet end of the fan filter unit 84 is located outside the dust removal space 80. Dust pelletizing system 8 can enough avoid outside dust to pollute pole piece, diaphragm, can cross and clear away the granule such as piece, dust that produce in the electric core production process to guarantee the quality of the electric core of production department.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims

1. A square power electric core winder comprises

A frame;

the winding device comprises a winding head which is rotatably arranged on the rack, three first winding needles are arranged on the winding head and slide relative to the winding head along the axial direction of the first winding needles, and the winding head can drive the three first winding needles to move among the winding station, the rubberizing station and the blanking station;

the method is characterized in that:

the square power electric core winder further comprises a guide device, the guide device comprises a press roller and an XY-axis driving unit, the press roller is parallel to the first winding needle, the press roller is provided with a first position and a second position, the first position is located at the upstream end of the winding station along the feeding direction of the first winding needle, the second position is located between the rubberizing station and the winding station, and the XY-axis driving unit can drive the press roller to move between the first position and the second position along the X axis and the Y axis;

the winding device is characterized in that a limiting part is arranged on the first winding needle, the winding device further comprises a first limiting unit, the first limiting unit comprises a first rail, the first rail is mounted at the position, close to the front end of the winding head, of the rack, the first rail extends to the blanking station from the winding station, the first rail has a direction towards a first limiting surface of the front end of the winding head, and is in alignment with the axial direction of the winding head, the projection of the first end of the first rail is staggered with the projection of the limiting part at the winding station, and the projection of the second end of the first rail is staggered with the projection of the limiting part at the blanking station.

2. The square power electric core winder of claim 1, wherein:

the XY axis driving unit comprises an X axis driving mechanism and a Y axis driving mechanism, the X axis driving mechanism drives the compression roller to move along the X axis, and the Y axis driving mechanism drives the X axis driving mechanism to move along the Y axis;

the X axis is perpendicular to the Y axis, and the Y axis is parallel to the radial direction of the winding head passing through the winding station;

a connecting line is formed between the first position and the second position, the connecting line is parallel to the Y axis, and the winding station is located on the connecting line.

3. The square power electric core winder of claim 1, wherein:

the first limiting unit further comprises:

the first stop block is hinged to the first end of the first rail and provided with a first limiting part, and the first limiting part is provided with a second limiting surface which is flush with the first limiting surface;

the first driving mechanism can drive the first stop block to rotate, so that the second limiting surface moves to the first end part of the first rail and is adjacent to the limiting piece at the winding station.

4. The square power electric core winder of claim 3, wherein:

the winding device further comprises a second limiting unit, and the second limiting unit comprises:

the second rail is installed at the tail end, close to the winding head, of the rack, extends from the blanking station to the winding station along the rotation direction of the winding head, a third limiting surface is formed on one surface, facing the tail end of the winding head, of the second rail, and along the axial direction, the projection of the first end of the second rail is staggered with the projection of the limiting piece at the blanking station, and the projection of the second end of the second rail is staggered with the projection of the limiting piece at the winding station;

the second stop block is hinged to the first end of the second track and provided with a second limiting part, and the second limiting part is provided with a fourth limiting surface which is flush with the third limiting surface;

the second driving mechanism can drive the second stopper to rotate, so that the fourth limiting surface moves to the first end part of the second track and is adjacent to the limiting piece at the blanking station.

5. The square power electric core winder of claim 1, wherein:

the square power electric core winding machine further comprises a cutting device, the cutting device comprises a cutter unit, the cutter unit is located at the upstream end of the first winding needle at the winding station along the feeding direction, and the cutter unit comprises:

the cutting device comprises a first mounting seat, a second mounting seat and a cutter, wherein a first guide pillar and a first cutter are arranged on the first mounting seat;

the cutter seat is slidably arranged on the first guide pillar and is provided with a second cutter;

a third driving mechanism, wherein the third driving mechanism can drive the cutter seat to move towards the first cutter along the first guide pillar;

the first pressing mechanism comprises a second guide pillar, a limiting plate, a pressing plate and a spring, the second guide pillar is parallel to the first guide pillar, the second guide pillar is connected with the first mounting seat in a sliding mode along the axial direction of the second guide pillar, the limiting plate and the pressing plate are fixed to two ends of the second guide pillar respectively, the cutter seat is located between the limiting plate and the pressing plate, the pressing plate is located between the cutter seat and the first cutter, the spring drives the pressing plate to move towards the first cutter along the second guide pillar, and the limiting plate can move along the second guide pillar to be adjacent to the cutter seat.

6. The square power electric core winder of claim 1, wherein:

the square power electric core winding machine further comprises a deviation correcting device, the deviation correcting device is located at the upstream end of the winding station along the feeding direction, and the deviation correcting device comprises:

the first fixed seat is provided with a first guide rail;

the mounting rack is fixedly mounted on the first fixing seat;

a first sliding seat slidably mounted on the first guide rail;

the first driving unit drives the first sliding seat to slide along the first guide rail;

the first end of the floating roller is connected with the mounting frame through a spherical hinge, and the second end of the floating roller is connected with the first sliding seat through a spherical hinge.

7. The square power electric core winder of claim 1, wherein:

square power electricity core winder still includes the pole piece cuts off rubberizing device, follows the direction of feed, the pole piece cuts off rubberizing device and is located the upstream end of coiling station, the pole piece cuts off the rubberizing device and includes:

the first clamping unit is installed on the rack and comprises a clamping piece mechanism and a fourth driving mechanism, and the fourth driving mechanism drives the clamping piece mechanism to move along a first direction;

the second clamping unit is mounted on the rack, and the first clamping unit and the second clamping unit are distributed along the first direction;

the moving unit is arranged on the rack, and the moving unit is provided with a fifth driving mechanism;

the cutting unit and the first rubberizing unit are distributed along the first direction, the cutting unit and the first rubberizing unit are connected with the output end of a fifth driving mechanism, and the fifth driving mechanism can drive the cutting unit and the first rubberizing unit to move along the first direction between the first clamping unit and the second clamping unit.

8. The square power electric core winder of claim 1, wherein:

square power electricity core winder still includes pole piece list book rubberizing device, pole piece list book rubberizing device includes:

the second mounting seat is provided with a second guide rail parallel to the first winding needle;

the winding unit comprises a second sliding seat, a second winding needle, a sixth driving mechanism, a second pressing mechanism and a seventh driving mechanism, the second sliding seat is slidably mounted on the second guide rail, the second winding needle is rotatably mounted on the second sliding seat and is parallel to the first winding needle, the sixth driving mechanism drives the second winding needle to rotate, the second winding needle is positioned at the upstream end of the first winding needle along the feeding direction, the second winding needle is provided with two needle bodies which are oppositely arranged, a pole piece channel is formed between the two needle bodies, the second pressing mechanism comprises a rotating shaft and a pressing wheel, the rotating shaft is rotatably mounted on the second sliding seat, the pressing wheel is rotatably mounted at one end of the rotating shaft close to the needle bodies, and the axis of the pressing wheel is staggered with the axis of the rotating shaft, the pinch roller and the rotating shaft are both parallel to the second winding needle, and the seventh driving mechanism drives the rotating shaft to rotate;

the second driving unit drives the second sliding seat to slide along the second guide rail;

and the execution end of the second gluing unit can move to the second winding needle.

9. The square power electric core winder of claim 1, wherein:

the square power electric core winder further comprises a tension control device, the tension control device is located at the upstream end of the winding station along the feeding direction, and the tension control device comprises:

the third mounting seat is provided with a third guide rail;

the tension detector is positioned at one end of the third guide rail, and a first transmission roller is arranged at the detection end of the tension detector;

the linear motor comprises a stator and a rotor, the stator is mounted on the third mounting seat and extends along the third guide rail, and the rotor is slidably arranged on the stator along the extending direction of the stator;

the third sliding seat is fixedly connected with the rotor and is slidably connected with the third guide rail;

the second driving roller is installed on the third sliding seat and is parallel to the first driving roller;

and the third driving roller is arranged on the third sliding seat and is parallel to the first driving roller.

10. The square power core winder according to any of claims 1 to 9, characterized in that:

the square power electric core winding machine further comprises a dust removal system, and the dust removal system comprises:

the dust cover is covered on the installation panel of the rack, and a dust removal space is formed between the dust cover and the installation panel;

a dust collection unit disposed in the dust removal space, the dust collection unit having a suction end;

the pipeline unit is communicated with the dust suction unit and the dust collection unit;

and the fan filter unit is arranged at the top of the dust cover, the air inlet end of the fan filter unit is communicated with the dust removing space, and the air outlet end of the fan filter unit is positioned outside the dust removing space.