CN215342662U - Lithium battery pelleter - Google Patents

Abstract

The utility model discloses a lithium battery pelleter which comprises a rack, and a pole piece unreeling mechanism, a pole piece reeling mechanism, a pole piece conveying line, a pole piece gluing line, a pole lug processing line, a pole lug welding mechanism and a residual material cutting and recycling mechanism which are assembled on the rack. The pole lug processing line corresponds to the pole lug welding mechanism, the pole lug processing line conveys the pole lug joint to the pole lug welding mechanism, the pole lug welding mechanism welds the pole lug joint and a pole piece together, the pole piece rubberizing line rubberizes the pole piece welded with the pole lug joint, the pole piece conveyed by the pole piece conveying line sequentially passes through the pole lug welding mechanism and the pole piece rubberizing line, the excess material cutting and recovering mechanism is positioned between the pole piece winding mechanism and the pole piece rubberizing line along the conveying direction of the pole piece, the excess material cutting and recovering mechanism cuts the excess material of the pole lug joint welded on the pole piece and recovers the excess material, and the pole piece winding mechanism winds the pole lug joint and the pole piece together after the excess material is cut; the problem of the mixed and disorderly emission of the excess material that the utmost point ear section was amputated is solved.

Description

Lithium battery pelleter

Technical Field

The utility model relates to the field of lithium batteries, in particular to a lithium battery pelleter.

Background

With the continuous development of economy and the continuous progress of society, various material consumer products are provided for the production and the life of people, and a lithium ion battery is one of the material consumer products.

As is well known, lithium ion batteries are widely used in electronic products, electric vehicles or new energy vehicles, and are increasingly favored by people.

In the existing manufacturing machine of the lithium electronic battery, because the design is unreasonable, after the tab section is cut out by the tab processing line, the excess material of the tab section is cut off, and the tab section is welded on the pole piece by the tab welding mechanism after the excess material is cut off. This causes the cut-off remnants to be randomly discharged to various positions of the manufacturing machine, and thus there is a problem in that the remnants are randomly discharged.

Therefore, a lithium battery pelleter solving the problem of disordered discharge of the residual materials after the tab joints are cut off is needed to overcome the defects.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lithium battery pelleter which solves the problem that residual materials of pole lug joints are cut off and are randomly discharged.

In order to achieve the purpose, the lithium battery pelleter comprises a rack, and a pole piece unreeling mechanism, a pole piece reeling mechanism, a pole piece conveying line, a pole piece gluing line, a pole lug processing line, a pole lug welding mechanism and a residual material cutting and recycling mechanism which are assembled on the rack. The pole piece unreeling mechanism, the pole lug welding mechanism, the pole piece adhesive tape sticking line and the pole piece reeling mechanism are sequentially arranged at intervals along the conveying direction of the pole piece, the pole lug processing line corresponds to the pole lug welding mechanism, the pole lug processing line conveys the pole lug joint to the pole lug welding mechanism, and the pole lug welding mechanism welds the pole lug joint and the pole piece together; the pole piece rubberizing line is used for rubberizing a pole piece welded with a pole lug joint, the pole piece conveying line is positioned between the pole piece unreeling mechanism and the pole piece reeling mechanism, and the pole piece conveyed by the pole piece conveying line sequentially penetrates through the pole lug welding mechanism and the pole piece rubberizing line; excess material excision is retrieved the mechanism and is located along the direction of delivery of pole piece between pole piece winding mechanism and the pole piece rubberizing line, excess material excision is retrieved the mechanism and will weld in the excess material excision of the utmost point ear festival on the pole piece and retrieve this excess material, pole piece winding mechanism is to the utmost point ear festival and the pole piece rolling together after the excess material excision.

Preferably, the excess material cutting and recycling mechanism comprises a lower cutter, an upper cutter, an excess material recycling box and a cutting driver for driving the upper cutter and the lower cutter to be opened and closed to be matched with each other so as to cut excess material of the tab section, and the excess material recycling box is mounted on the rack and located right below the lower cutter.

Preferably, the upper cutter and the lower cutter are aligned obliquely in the up-down direction of the frame.

Preferably, the excess material cutting and recycling mechanism further comprises a sliding driver and a sliding frame, the sliding driver is assembled on the rack, the sliding frame is assembled and connected with an output end of the sliding driver, the lower cutter is fixed on the sliding frame, the cutting driver is located right above the upper cutter and fixed on the sliding frame, and an output end of the cutting driver is assembled and connected with the upper cutter.

Preferably, the excess material cutting and recycling mechanism further comprises an upper roll shaft, a lower roll shaft, a rotating motor and an opening and closing driver used for enabling the upper roll shaft and the lower roll shaft to be in opening and closing matching, the upper roll shaft is located behind the upper cutter along the conveying direction of the pole pieces, the lower roll shaft is located behind the lower cutter along the conveying direction of the pole pieces, the lower roll shaft is arranged in parallel with the upper roll shaft, the rotating motor is installed on the rack, the output end of the rotating motor is connected with the lower roll shaft in an assembling mode, the opening and closing driver is located above the upper roll shaft, the opening and closing driver is installed on the rack and located behind the cutting driver along the conveying direction of the pole pieces, and the output end of the opening and closing driver is connected with the upper roll shaft in an assembling mode.

Preferably, utmost point ear welding mechanism contain the support body, assemble in the die block of support body, be used for bearing the roller of pole piece from the below, be located directly over the die block and with the die block is welding complex top mould, assemble in the suction box of support body and assemble in the support body is followed the axial of roller is located the other head of blowing of side of die block, the head of blowing upwards protrusion roller and die block, the dust absorption mouth of suction box arranges up and is located under the roller.

Preferably, the roller contains to follow the direction of delivery of pole piece separates the first roller and the second roller of alignment each other, the die block respectively follows with the head of blowing the direction of delivery of pole piece is located between first roller and the second roller, the suction box is two, one the suction box is located under the first roller, another the suction box is located under the second roller, the mouth orientation of blowing of head first roller or second roller, the mouth of blowing of head is right from the top by the pole piece of the common bearing of first roller and second roller blows dirt.

Preferably, the tab processing line comprises a tab unwinding mechanism, a deviation-preventing tab feeding mechanism and a tab cutting mechanism, the tab cutting mechanism is adjacent to the tab welding mechanism, and the deviation-preventing tab feeding mechanism and the tab unwinding mechanism face the rear direction of the rack is sequentially away from the tab cutting mechanism.

Preferably, the anti-skew tab feeding mechanism comprises a mechanism frame body, a sliding frame body arranged on the mechanism frame body in a sliding manner along the front-back direction of the frame, a sliding driver assembled on the mechanism frame body, and a first pressing driver and a second pressing driver which are arranged along the front-back direction of the frame in a spaced manner, wherein the first pressing driver is positioned at the rear end of the sliding frame body, the second pressing driver is positioned at the opposite front end of the sliding frame body, and the sliding driver drives the sliding frame body together with the first pressing driver and the second pressing driver to slide and switch between a feeding position and a resetting position.

Preferably, prevent that crooked utmost point ear mechanism of sending still contains and is used for ordering about the mechanism support body is followed the fore-and-aft direction of frame carries out the driving motor who slides, the mechanism support body cunning is located the frame, driving motor removes through the cooperation of lead screw and orders about the mechanism support body slides.

Compared with the prior art, the lithium battery pelleter also comprises a residual material cutting and recovering mechanism assembled on the frame, the residual material cutting and recovering mechanism is positioned between the pole piece winding mechanism and the pole piece adhesive tape line along the conveying direction of the pole piece, the residual material cutting and recovering mechanism cuts residual materials of pole lug sections welded on the pole piece and recovers the residual materials, and the pole piece winding mechanism winds the pole lug sections and the pole piece together after cutting the residual materials; the cutting off of the excess material of the tab joint is arranged after the pole piece is glued and before the pole piece is rolled, and the cut excess material is collected and stored, so that the problem of disordered discharge of the excess material of the tab joint is effectively solved.

Drawings

Fig. 1 is a schematic perspective view of a lithium battery pellet mill according to the present invention.

Fig. 2 is a schematic plan view of the lithium battery pellet mill shown in fig. 1, viewed in the direction indicated by arrow a.

Fig. 3 is a schematic three-dimensional structure diagram of the anti-skew pole lug feeding mechanism installed on the frame in the lithium battery pelleter of the present invention.

Fig. 4 is a schematic perspective exploded view of fig. 3.

Fig. 5 is a schematic plan view of fig. 3 after projection in the direction opposite to the arrow B.

Fig. 6 is a schematic perspective view of a sliding frame body assembled with a first pressing driver, a second pressing driver and a guide roller set in the anti-skew tab feeding mechanism shown in fig. 3.

Fig. 7 is a schematic state diagram of the anti-skew tab feeding mechanism shown in fig. 3 when the first pressing driver and the second pressing driver press the tab strip together and the sliding frame body is in the reset position.

Fig. 8 is a schematic view of the anti-skew tab feeding mechanism shown in fig. 3 in a state where the first pressing driver and the second pressing driver press the tab bars together and the sliding frame body is in a feeding position.

Fig. 9 is a schematic perspective view of a tab welding mechanism in a lithium battery pelleter according to the present invention, when a top mold and a bottom mold are closed and welded.

Fig. 10 is a schematic perspective view of the tab welding mechanism shown in fig. 9 with the top mold removed from the bottom mold.

Fig. 11 is a schematic plan view of the tab welding mechanism in the state shown in fig. 9, when the top mold is hidden and viewed from the rear to the front.

Fig. 12 is a schematic perspective view of a remainder cutting and recovering mechanism in a lithium battery pelleter according to the present invention.

Fig. 13 is a schematic plan view of the discard cutting and recovering mechanism shown in fig. 12.

Detailed Description

The preferred embodiments of the present invention will now be described with reference to the accompanying drawings, which are given by way of illustration.

Referring to fig. 1 and fig. 2, a lithium battery pelleter 100 of the present invention includes a frame 10, and a pole piece unwinding mechanism 20, a pole piece winding mechanism 30, a pole piece conveying line 40, a pole piece gluing line 50, a pole tab processing line 60, a pole tab welding mechanism 70, and a remainder cutting and recovering mechanism 80 assembled on the frame 10. The pole piece unwinding mechanism 20, the tab welding mechanism 70, the pole piece adhesive tape line 50, and the pole piece winding mechanism 20 are sequentially arranged at intervals along the conveying direction of the pole piece 210 (see fig. 11), for example, in fig. 1, the pole piece 210 is conveyed along the counterclockwise direction, that is, the pole piece 210 is conveyed upwards, then conveyed along the left-to-right direction of the rack 10, and finally conveyed downwards, but not limited thereto; the tab processing line 60 corresponds to the tab welding mechanism 70, and preferably, the tab processing line 60 is located behind the tab welding mechanism 70 along the front-back direction of the frame 10, but not limited thereto; the tab processing line 60 conveys the tab segments (i.e., the tab strips 220 shown in fig. 8) to the tab welding mechanism 70, and the tab welding mechanism 70 welds the tab segments and the pole pieces 210 together. The pole piece rubberizing line 50 rubberizes the pole piece 210 welded with the tab section. The pole piece conveying line 40 is located between the pole piece unwinding mechanism 20 and the pole piece winding mechanism 30, and the pole piece 210 conveyed by the pole piece conveying line 40 sequentially passes through the tab welding mechanism 70 and the pole piece rubberizing line 50, so that conveying power is provided for the part, located between the pole piece unwinding mechanism 20 and the pole piece winding mechanism 30, of the pole piece 210. The excess material cutting and recycling mechanism 80 is located between the pole piece winding mechanism 20 and the pole piece adhesive tape line 50 along the conveying direction of the pole piece 210, and the excess material cutting and recycling mechanism 80 cuts the excess material of the pole lug section welded on the pole piece 210 and recycles the excess material. The pole piece winding mechanism 30 winds the pole lug sections after the excess materials are removed and the pole pieces 210 together. Specifically, in fig. 1 and 2, the pole piece unreeling mechanism 20, the pole piece welding mechanism 70, the pole piece conveying line 40, the pole piece rubberizing line 50, the excess material cutting and recovering mechanism 80, and the pole piece reeling mechanism 30 are respectively located at the front side of the frame 10, the pole piece processing line 60 is located at the rear side of the frame 10, the pole piece processing line 60 is further located right behind the pole piece welding mechanism 70, the pole piece rubberizing line 50, and the excess material cutting and recovering mechanism 80 are sequentially arranged at intervals along the frame 10 from the right to the left direction, and meanwhile, the pole piece welding mechanism 70, the pole piece rubberizing line 50, and the excess material cutting and recovering mechanism 80 are further arranged at the pole piece conveying line 40 in a penetrating manner; the pole piece winding mechanism 30 is positioned below the excess material cutting and recycling mechanism 80, and the pole piece unwinding mechanism 20 is positioned below the tab welding mechanism 70; the lithium battery pelleter is compact in structural arrangement and good in space utilization efficiency due to the design, but the lithium battery pelleter is not limited by the design. More specifically, the following:

referring to fig. 12 and 13, the remainder cutting and recycling mechanism 80 includes a lower cutter 81, an upper cutter 82, a remainder recycling box 83, and a cutting driver 84 for driving the upper cutter 82 and the lower cutter 81 to open and close to each other to cut the remainder of the tab section. The excess material recycling box 83 is installed on the frame 10 and located right below the lower cutter 81, so that the excess material of the cut tab joint automatically falls into the excess material recycling box 83 under the action of self weight, and the structure of the excess material cutting and recycling mechanism 80 is simplified. Specifically, in fig. 13, the upper cutter 82 and the lower cutter 81 are aligned obliquely in the up-down direction of the frame 10, and this design makes the discard more easily fall down to the discard collecting box 83, effectively preventing the discard from being accumulated at the lower cutter 81. More specifically, in fig. 12 and 13, the excess material cutting and recovering mechanism 80 further includes a slide driver 85 and a slide frame 86; the sliding driver 85 is assembled on the frame 10, and the frame 10 provides a supporting function and an assembling place for the sliding driver 85; the sliding frame 86 is assembled and connected with the output end of the sliding driver 85; the lower cutter 81 is fixed on the sliding frame 86, the cutting driver 84 is positioned right above the upper cutter 82 and fixed on the sliding frame 86, the output end of the cutting driver 84 is connected with the upper cutter 82 in an assembling manner, so that the cutting driver 84, the upper cutter 82 and the lower cutter 81 can be driven to slide and adjust along the front-back direction of the frame 10 by means of the sliding driver 85 and the sliding frame 86, and accordingly the residual materials of the tab sections can be cut more accurately and the residual materials of the tab sections with different sizes can be cut. For example, the cutting actuator 84 is a pneumatic cylinder, and certainly, a hydraulic cylinder according to actual needs, and thus, is not limited to this; in addition, the sliding driver 85 is a motor, and the motor drives the sliding frame 86 to slide along the front and back direction of the frame 10 through the matching of the screw rod 851 and the nut 852, but not limited thereto; in fig. 13, the upper blade 82 is inclined upward to the left with respect to the lower blade 81, but the present invention is not limited thereto.

In fig. 12 and 13, in order to effectively ensure the reliability of cutting off the surplus material of the tab section, the surplus material cutting and recovering mechanism 80 further includes an upper roller 871, a lower roller 872, a rotating motor 88, and a closing and opening driver 89 for closing and opening the upper roller 871 and the lower roller 872. The upper roller shaft 871 is positioned behind the upper cutting knife 82 in the conveying direction of the pole piece 210, the lower roller shaft 872 is positioned behind the lower cutting knife 81 in the conveying direction of the pole piece 210, and the lower roller shaft 872 and the upper roller shaft 871 are arranged in parallel, so that the lower roller shaft 872 and the upper roller shaft 871 are respectively arranged in the front-back direction of the rack 10; the rotating motor 88 is installed on the machine frame 10, the machine frame 10 provides a supporting function and an assembling place for the rotating motor 88, and the output end of the rotating motor 88 is assembled and connected with the lower roller shaft 872 so as to meet the requirement that the rotating motor 88 drives the lower roller shaft 872 to rotate; the opening and closing driver 89 is located above the upper roller shaft 871, the opening and closing driver 89 is installed on the frame 10 and located behind the cutting driver 84 along the conveying direction of the pole piece 210, the output end of the opening and closing driver 89 is assembled and connected with the upper roller shaft 871, the opening and closing driver 89 drives the upper roller shaft 871 to approach relative to the lower roller shaft 872 so as to press the pole piece 210 by the lower roller shaft 872 and the upper roller shaft 871 together, and then the rotating motor 88 drives the lower roller shaft 872 to rotate so as to realize the conveying effect of the lower roller shaft 872 on the pole piece 210. For example, the opening/closing actuator 89 is selected to be a pneumatic cylinder or a hydraulic cylinder, but not limited thereto.

As shown in fig. 9 to 11, the tab welding mechanism 70 includes a frame body 71, a bottom mold 72 assembled to the frame body 71, a roller 73 for supporting the pole piece 210 from below, a top mold 74 located directly above the bottom mold 72 and in welding engagement with the bottom mold 72, a dust suction box 75 assembled to the frame body 71, and a blowing head 76 assembled to the frame body 76 and located beside the bottom mold 72 along the axial direction of the roller 73. The blowhead 76 projects the roller shaft 73 and the bottom die 72 upward, and the dust suction port 751 of the dust suction box 75 is disposed upward and directly below the roller shaft 73; the pole piece 210 supported by the roller shaft 73 is blown with dust by the blowing head 76 from above, and the pole piece 210 supported by the roller shaft 73 is extracted with the dust box 75 from below, so that the problem of dust generated in the welding process is solved, and the reliability of welding the tab section 220 on the pole piece 210 and the cleanness of the working environment are ensured. Specifically, in fig. 9, 10 and 11, the roller 73 includes a first roller 731 and a second roller 732 aligned with a space therebetween along the conveying direction of the pole piece 210, and the die 72 and the blowing head 76 are each located between the first roller 731 and the second roller 732 along the conveying direction of the pole piece 210; two dust boxes 75 are provided, one dust box 75 is positioned right below the first roller 731, and the other dust box 75 is positioned right below the second roller 732, so that the first roller 731 and the second roller 732 are respectively provided with one dust box 75, which can effectively improve the dust collection effect; the blowing port 761 of the blowing head 76 faces the second roller 732 to match the conveying direction of the pole piece 210, which is because the conveying direction of the pole piece 210 is from the first roller 731 to the second roller 732, so that better dust removal effect is obtained; of course, the blowing port 761 of the blowing head 76 may be directed toward the first roller 731 as needed, and thus, the present invention is not limited thereto; the air blowing port 761 of the air blowing head 76 blows dust from above to the pole piece 210 supported by both the first roller 731 and the second roller 732. More specifically, in fig. 9, 10 and 11, the bottom of the dust box 75 is provided with a dust connection pipe 77, and the dust connection pipe 77 is inserted downward into the frame body 71, so that the dust box 75 is communicated with an external suction device (such as a pump), and the communication operation is more convenient; meanwhile, in fig. 11, the roller shaft 73 is higher than the bottom die 72, so that the roller shaft 73 is higher than the bottom die 72, thereby effectively reducing the frictional resistance of the bottom die 72 to the pole piece 210 during conveying, and being more beneficial to conveying the pole piece 210; of course, the roller 73 may be disposed at the same height as the bottom mold 72 according to actual needs, but not limited thereto; the axial direction of the roller shaft 732 is arranged in the front-rear direction of the frame 10, but not in this case.

As shown in fig. 1, the tab processing line 60 includes a tab unwinding mechanism 60a, an anti-skew tab feeding mechanism 60b, and a tab cutting mechanism 60 c; the tab cutting mechanism 60c is adjacent to the tab welding mechanism 70, and the anti-skew tab feeding mechanism 60b and the tab unwinding mechanism 60a are sequentially away from the tab cutting mechanism 60c toward the rear direction of the frame 10. Specifically, as shown in fig. 3 to 6, the anti-skew tab feeding mechanism 60b includes a mechanism frame body 61, a sliding frame body 62 slidably disposed on the mechanism frame body 61 along the front-rear direction of the frame 10, a sliding driver 63 assembled on the mechanism frame body 61, and a first pressing driver 64 and a second pressing driver 65 spaced apart along the front-rear direction of the frame 10; the first pressing driver 64 is located at the rear end of the sliding frame body 62, the second pressing driver 65 is located at the opposite front end of the sliding frame body 62, the sliding driver 63 drives the sliding frame body 62 together with the first pressing driver 64 and the second pressing driver 65 to slidably switch between a feeding position shown in fig. 8 and a resetting position shown in fig. 7, so that the tab strips 220 are pressed from the front and rear ends of the sliding frame body 62 by means of the cooperation of the first pressing driver 64 and the second pressing driver 65, the free end in front of the tab strips 220 is prevented from being too long, the tab cutting strips 220 conveyed to the tab cutting mechanism 60c are prevented from being skewed, and the speed and efficiency of the tab strips 220 are improved. Specifically, in fig. 3 and 4, the anti-skew tab feeding mechanism 60b further includes a driving motor 66 for driving the mechanism frame body 61 to slide along the front-back direction of the rack 10, the mechanism frame body 61 is slidably disposed on the rack 10, and the rack 10 provides a sliding support for the mechanism frame body 61; the driving motor 66 drives the mechanism frame body 61 to slide through the matching of the screw rod 661 and the screw nut 662 so as to adjust the conveying pitch of the tab strips 220, thereby achieving the function of correcting the deviation and ensuring the consistency of the conveying pitch of the tab strips 220. More specifically, the following:

in fig. 3, 4 and 6, the sliding frame body 62 is provided with a guide channel 68 for guiding the tab strip 220 in conveying at a position between the first pressing driver 64 and the second pressing driver 65, and the width of the guide channel 68 adjacent to the rear end of the first pressing driver 64 is increased toward the direction close to the first pressing driver 64, so that the tab strip 220 enters the guide channel 68. Specifically, as shown in fig. 6, the guide channel 68 is in the shape of a "figure eight" (see reference numeral 681) adjacent to the rear end of the first compression driver 64, so that the tab strip 220 more easily enters the guide channel 68 to be guided by the guide channel 68, but not limited thereto.

As shown in fig. 3 to 8, each of the first and second pressing drivers 64 and 65 is located obliquely above the guide passage 68 such that each of the first and second pressing drivers 64 and 65 is offset from the guide passage 68, thereby allowing the first and second pressing drivers 64 and 65 to press both front and rear ends of the material extending out of the guide passage 68. Specifically, in fig. 3 to 8, the front end of the sliding frame body 62 is provided with a guide roller set 69, and the guide roller set 69 is located at a side (i.e., a front side) of the second pressing driver 65 opposite to the first pressing driver 64, so that the position of the tab strip 220 protruding out of the second pressing driver 65 is guided and restrained by the guide roller set 69, and the tab strip 220 conveyed to the tab cutting mechanism 60c is more effectively prevented from being skewed. For example, in fig. 3 to 8, the first pressing driver 64 and the second pressing driver 65 are air cylinders, and output ends of the air cylinders are respectively provided with a pressing block 67 to improve the pressing reliability. For example, as shown in fig. 3 to 5 and fig. 7 to 8, the sliding driver 63 is a motor, and the motor drives the sliding frame 62 to slide through the cooperation of the screw 631 and the nut 632, so as to improve the sliding accuracy and reliability of the sliding frame 62. It will be appreciated that the motor may also drive the sliding frame 62 to slide through belt drive, chain drive or gear drive, as required. For belt transmission, two belt pulleys and a belt sleeved on the two belt pulleys and fixedly connected with the sliding frame body 62 are usually adopted; for chain transmission, two chain wheels and a chain sleeved on the two chain wheels and fixedly connected with the sliding frame body 62 are commonly adopted; for the gear transmission, a gear fixedly sleeved on the output shaft of the motor and a linear rack fixed with the sliding frame 62 and engaged with the gear are usually adopted.

When the tab strip 220 unwound by the tab unwinding mechanism 60a sequentially passes through the first pressing driver 64, the guide channel 68, the second pressing driver 65 and the guide roller set 69 and is in the state shown in fig. 7, at this time, the sliding driver 63 drives the sliding frame body 62 together with the first pressing driver 64 and the second pressing driver 65 to slide to the feeding position shown in fig. 8 through the cooperation of the lead screw 631 and the nut 632, so that the purpose of feeding the tab strip 220 to the tab cutting mechanism 60c is achieved, and then the tab cutting mechanism 60c cuts a tab section in the tab strip 220; the tab cutting mechanism 60c may cut in synchronization with the tab welding mechanism 70, or may cut in tandem.

Compared with the prior art, the lithium battery pelleter 100 of the utility model also comprises a residual material cutting and recovering mechanism 80 assembled on the frame 10, the residual material cutting and recovering mechanism 80 is positioned between the pole piece winding mechanism 30 and the pole piece rubberizing line 50 along the conveying direction of the pole piece 210, the residual material cutting and recovering mechanism 80 cuts off residual materials of pole lug sections welded on the pole piece 210 and recovers the residual materials, and the pole piece winding mechanism 30 winds the pole lug sections and the pole piece 210 together after the residual materials are cut off; the cutting of the excess material of the tab joint is arranged after the pole piece 210 is glued and before the pole piece 210 is rolled, and the cut excess material is collected and stored, so that the problem of disordered discharge of the excess material of the tab joint is effectively solved.

Note that, the direction indicated by the arrow a in the drawing is a front-to-rear direction of the rack 10, and the direction indicated by the arrow B in the drawing is a left-to-right direction of the rack 10. In addition, the specific structures of the pole piece unwinding mechanism 20, the pole piece winding mechanism 30, the pole piece conveying line 40, the pole piece gluing line 50, the tab unwinding mechanism 60a and the tab cutting mechanism 60c are well known in the art, and thus, the detailed description thereof is omitted.

The above disclosure is only a preferred embodiment of the present invention, which is convenient for those skilled in the art to understand and implement, and certainly not to limit the scope of the present invention, therefore, the present invention is not limited by the claims and their equivalents.

Claims (10)

1. A lithium battery pelleter comprises a frame, a pole piece unreeling mechanism, a pole piece reeling mechanism, a pole piece conveying line, a pole piece rubberizing line, a pole lug processing line and a pole lug welding mechanism, wherein the pole piece unreeling mechanism, the pole piece welding mechanism, the pole piece rubberizing line and the pole piece reeling mechanism are assembled on the frame and are sequentially arranged along the conveying direction of pole pieces in a spaced mode, the pole lug processing line corresponds to the pole lug welding mechanism, the pole lug processing line conveys a pole lug section to the pole lug welding mechanism, the pole lug welding mechanism welds the pole lug section and the pole piece together, the pole piece rubberizing line rubberizes the pole piece welded with the pole lug section, the pole piece conveying line is positioned between the pole piece unreeling mechanism and the pole piece reeling mechanism, and the pole piece conveyed by the pole piece conveying line sequentially passes through the pole lug welding mechanism and the pole piece rubberizing line, lithium cell pelleter still including assemble in the clout excision recovery mechanism of frame, clout excision recovery mechanism is located along the direction of delivery of pole piece between pole piece winding mechanism and the pole piece rubberizing line, clout excision recovery mechanism will weld in the clout excision of the utmost point ear festival on the pole piece and retrieve this clout, pole piece winding mechanism rolls together with the pole piece to the utmost point ear festival after the clout is amputated.

2. The lithium battery pelleter of claim 1, wherein the excess material cutting and recycling mechanism comprises a lower cutter, an upper cutter, an excess material recycling box and a cutting driver for driving the upper cutter and the lower cutter to open and close to be matched so as to cut excess material of the tab section, and the excess material recycling box is mounted on the frame and located right below the lower cutter.

3. The lithium battery pellet mill as recited in claim 2, wherein the upper cutter and the lower cutter are aligned obliquely in an up-down direction of the frame.

4. The lithium battery pelleter of claim 2, wherein the excess material cutting and recycling mechanism further comprises a sliding driver and a sliding frame, the sliding driver is assembled on the rack, the sliding frame is assembled and connected with an output end of the sliding driver, the lower cutter is fixed on the sliding frame, the cutting driver is positioned right above the upper cutter and fixed on the sliding frame, and an output end of the cutting driver is assembled and connected with the upper cutter.

5. The lithium battery pelleter of claim 4, wherein the excess material cutting and recycling mechanism further comprises an upper roller shaft, a lower roller shaft, a rotating motor and a stretching and closing driver for stretching and closing the upper roller shaft and the lower roller shaft, the upper roll shaft is positioned behind the upper cutter along the conveying direction of the pole piece, the lower roll shaft is positioned behind the lower cutter along the conveying direction of the pole piece, the lower roll shaft and the upper roll shaft are arranged in parallel, the rotating motor is arranged on the rack, the output end of the rotating motor is connected with the lower roll shaft in an assembling way, the opening and closing driver is positioned above the upper roll shaft, the opening and closing driver is installed on the rack and positioned behind the cutting driver along the conveying direction of the pole pieces, and the output end of the opening and closing driver is connected with the upper roll shaft in an assembling mode.

6. The lithium battery pelleter of claim 1, characterized in that, utmost point ear welding mechanism contain the support body, assemble in the die block of support body, be used for bearing the roller of pole piece from the below, be located directly over the die block and with the die block is welding complex top mould, assembly in the suction box of support body and assembly in the support body and edge the axial of roller is located the other head of blowing of side of die block, the upward protrusion of head of blowing roller and die block, the dust absorption mouth of suction box arranges up and is located under the roller.

7. The lithium battery pelleter of claim 6, wherein the roller comprises a first roller and a second roller which are aligned at intervals along the conveying direction of the pole pieces, the bottom die and the blowing head are respectively located between the first roller and the second roller along the conveying direction of the pole pieces, the number of the dust suction boxes is two, one dust suction box is located under the first roller, the other dust suction box is located under the second roller, the blowing port of the blowing head faces the first roller or the second roller, and the blowing port of the blowing head blows dust to the pole pieces which are commonly supported by the first roller and the second roller from the top.

8. The lithium battery pelleter of claim 1, wherein the tab processing line comprises a tab unreeling mechanism, a skew-preventing tab feeding mechanism and a tab cutting mechanism, the tab cutting mechanism is adjacent to the tab welding mechanism, and the skew-preventing tab feeding mechanism and the tab unreeling mechanism are sequentially away from the tab cutting mechanism in the rear direction of the rack.

9. The lithium battery pelleter of claim 8, wherein the anti-skew tab feeding mechanism comprises a mechanism frame body, a sliding frame body slidably disposed on the mechanism frame body along the front-rear direction of the rack, a sliding driver assembled on the mechanism frame body, and a first pressing driver and a second pressing driver spaced apart along the front-rear direction of the rack, the first pressing driver is located at the rear end of the sliding frame body, the second pressing driver is located at the opposite front end of the sliding frame body, and the sliding driver drives the sliding frame body together with the first pressing driver and the second pressing driver to perform sliding switching between a feeding position and a resetting position.

10. The lithium battery pelleter of claim 9, wherein the anti-skew tab feeding mechanism further comprises a driving motor for driving the mechanism frame body to slide along the front-back direction of the frame, the mechanism frame body is slidably arranged on the frame, and the driving motor drives the mechanism frame body to slide through the cooperation of a lead screw and a nut.

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