CN213425028U

CN213425028U - Automatic flat head is rubbed to machinery that gathers dust and flat device is rubbed to electric core thereof

Info

Publication number: CN213425028U
Application number: CN202022203586.5U
Authority: CN
Inventors: 吴轩; 冉昌林; 王树; 曹卫斌; 熊五岳; 程从贵
Original assignee: Wuhan Yifi Laser Equipment Co ltd
Current assignee: Wuhan Yifi Laser Corp Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-06-11
Anticipated expiration: 2030-09-30

Abstract

The embodiment of the utility model provides an automatic dust-collecting mechanical flat-kneading head and an electric core flat-kneading device thereof, wherein the automatic dust-collecting mechanical flat-kneading head comprises a rotating disk, and the rotating disk is provided with an air vent; the kneading flat wheel is arranged on the first disc surface of the rotating disc and is provided with a contact surface for contacting the end part of the battery cell; the negative pressure suction nozzle and the kneading flat wheel are positioned on the same side of the rotating disc, the negative pressure suction nozzle is arranged at one end of the vent hole, and the other end of the vent hole is communicated with the negative pressure device; the utility model discloses it rubs the flat wheel rotation in order to rub the flat in-process to the tip of electric core to drive at the rotary disk, and the negative pressure device of still being convenient for carries out normal dust absorption through negative pressure suction nozzle to the dust of rubbing the various granularities of flat production simultaneously and handles, has not only prevented that the dust from adsorbing under the effect of static and on all kinds of workpiece equipment, has still ensured the clean pollution-free of station environment.

Description

Automatic flat head is rubbed to machinery that gathers dust and flat device is rubbed to electric core thereof

Technical Field

The utility model relates to a battery processing technology field especially relates to an automatic flat head is rubbed to machinery that gathers dust and flat device is rubbed to electric core thereof.

Background

The battery core is the most important component of the battery, and the battery core can be assembled to form the battery after being sequentially processed by the processes of mechanical/ultrasonic kneading, encapsulation, shell entering, current collecting disc welding and the like. Therefore, the performance of the battery core has direct influence on the performance of the battery, and the preparation process of the battery core before the battery is assembled is very important.

The cell structure of the battery has various structures, wherein one of the structures is a cylindrical cell formed by alternately wrapping a plurality of diaphragms and aluminum films. When the battery cell is not flattened, the end part of the battery cell is uneven, a flanging and more burrs may occur, and the battery cell body still has a certain degree of outward deviation in concentricity. In order to facilitate the subsequent welding of the current collecting plate at the end of the battery core and ensure the welding quality, the end of the battery core needs to be subjected to rubbing treatment. Meanwhile, because the outer side wall of the battery core and the inner side wall of the battery shell are of very precise assembly sizes, the battery shell is scratched when the battery core which is not subjected to the flattening treatment is directly placed into the shell, and the flattening treatment of the end part of the battery core is particularly necessary.

At present, the end of the battery cell is usually mechanically flattened by a mechanical flattening head, the mechanical flattening head comprises a rotating disk and a plurality of flattening wheels, the plurality of flattening wheels are installed on the disk surface on one side of the rotating disk, and when the rotating disk rotates, the end of the battery cell is flattened by the flattening wheels. Since crushed dust and other impurities can occur during the mechanical smoothing, a dust hopper is currently provided on the underside of the mechanical smoothing head to ensure a clean and contamination-free working environment. However, in practical use, it is found that the dust with larger particle size is automatically collected to the dust hopper under the action of self gravity, and the dust with smaller particle size is easily subjected to electrostatic action, most of the dust is adhered to the electric core, the mechanical flat head and other workpieces and is difficult to clean. Meanwhile, under the influence of high temperature generated by mechanical kneading, dust with small particle size is easy to generate strong thermal motion, so that the dust is difficult to effectively collect, the quality of the surrounding environment is easy to influence, and the physical health of workers is threatened, so that in the mechanical kneading process, the dust with different particle sizes is effectively collected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an automatic flat head is rubbed to machinery that gathers dust and flat device is rubbed to electric core thereof for solve present and rub flat in-process at the machinery to electric core, be difficult to carry out the problem of collecting effectively to the dust of different granularities simultaneously.

The embodiment of the utility model provides an automatic flat head is rubbed to machinery that gathers dust, include: the rotary disc is provided with a vent hole; the kneading and flattening wheel is installed on the first disc surface of the rotating disc and comprises a pressing part and a kneading and flattening part, the pressing part is provided with a pressing surface which is used for being attached to the edge of the end part of the battery cell, the kneading and flattening part is conical, the large head end of the kneading and flattening part is connected with the pressing surface of the pressing part, the small head end of the kneading and flattening part extends to the disc center of the rotating disc, an annular external corner structure is formed between the side surface of the kneading and flattening part and the pressing surface, and the side surface of the kneading and flattening part is used for contacting the end part of the battery cell; the negative pressure suction nozzle and the kneading flat wheel are positioned on the same side of the rotating disc, the negative pressure suction nozzle is installed at one end of the vent hole, and the other end of the vent hole is used for being communicated with a negative pressure device.

According to the utility model discloses an automatic mechanical flat head of gathering dust still includes: the transmission shaft is of a hollow structure, one end of the transmission shaft is connected to the second disc surface of the rotating disc and communicated with the vent hole, the middle of the transmission shaft is used for being connected with a rotary driving mechanism, and the other end of the transmission shaft is used for being communicated with the negative pressure device.

According to the utility model discloses an automatic machinery that gathers dust rubs crew cut, negative pressure suction nozzle includes a plurality ofly, negative pressure suction nozzle's both ends are a big one little setting, negative pressure suction nozzle's major part end is used for the orientation electricity core.

According to the utility model discloses an automatic machinery of gathering dust rubs crew cut of embodiment, negative pressure suction nozzle's port shape includes any kind in the middle of flat, circular, the regular polygon.

According to the utility model discloses an automatic machinery that gathers dust rubs crew cut of embodiment, the one end of thimble is still connected to the heart of a plate of rotary disk, the other end of thimble is used for the axle center of butt electricity core.

According to the utility model discloses an automatic machinery that gathers dust rubs flat head, it includes a plurality ofly to rub the flat wheel, and for the center of a plate of rotary disk is the circumference equipartition.

According to the utility model discloses an automatic mechanical flat head that gathers dust of embodiment, the flat wheel of rubbing is installed on bearing support rotatoryly, bearing support radially adjustable installs on the first quotation of rotary disk; and/or the kneading flat wheels and the negative pressure suction nozzles are arranged in a one-to-one opposite mode.

The embodiment of the utility model provides a flat device is rubbed to electric core still is provided, include as above the machinery of automatic dust collection rub the crew cut.

According to the utility model discloses an electric core is rubbed flatly and is put, including two machinery and is rubbed flatly the mechanism, two machinery are rubbed flatly the mechanism and are used for setting up along the length direction of electric core relatively; the mechanical flat kneading mechanism comprises a linear module, a rotary driving mechanism and a mechanical flat kneading head capable of automatically collecting dust, wherein the rotary driving mechanism is installed on a sliding table of the linear module, and an output end of the rotary driving mechanism is connected with the mechanical flat kneading head capable of automatically collecting dust.

The embodiment of the utility model provides a pair of flat head is rubbed to machinery of automatic gathering dust and flat device is rubbed to its electric core, rub flat wheel and negative pressure suction nozzle through setting up simultaneously on the first quotation of rotary disk, and pass through air vent intercommunication negative pressure equipment on the rotary disk with negative pressure suction nozzle, then rub the flat wheel rotation in order to rub the flat in-process to the tip of electric core at the rotary disk drive, the negative pressure equipment of still being convenient for carries out normal dust absorption through negative pressure suction nozzle to the dust of rubbing the various granularities of flat production simultaneously and handles, not only prevented that the dust from adsorbing under the effect of static on all kinds of work piece equipment, the clean pollution-free of station environment has still been ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first structural schematic diagram of a kneading flat wheel provided by an embodiment of the present invention;

fig. 2 is a schematic structural view illustrating the end of the battery cell is flattened by the flattening wheel in fig. 1 according to the embodiment of the present invention;

fig. 3 is a second structural schematic view of a kneading flat wheel provided by the embodiment of the present invention;

fig. 4 is a schematic structural diagram illustrating the flattening wheel in fig. 3 flattening the end of the battery cell according to the embodiment of the present invention;

fig. 5 is a schematic top view of a mechanical kneading block provided by an embodiment of the present invention;

fig. 6 is a schematic cross-sectional structural view of the mechanical flattening head in fig. 5 flattening the end of the electrical core according to the embodiment of the present invention;

fig. 7 is a schematic view of a front view structure of a cell flattening device provided in an embodiment of the present invention;

fig. 8 is a schematic structural view of a mechanical kneading mechanism according to an embodiment of the present invention.

In the figure, 1, mechanical flat head kneading; 11. kneading a flat wheel; 110. a pressing section; 111. kneading the flat part; 112. a reentrant corner structure; 113. a connecting shaft; 114. an external corner structure; 115. a transition surface; 12. rotating the disc; 13. a negative pressure suction nozzle; 14. a bearing support; 15. a thimble; 16. a drive shaft; 2. an electric core; 3. a linear module; 4. a rotation driving mechanism; 41. a reduction motor; 42. a belt drive mechanism; 43. a gear transmission mechanism; 5. a fixed seat; 6. and fixing the bearing seat.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a first structural schematic diagram of a kneading and leveling wheel provided by the embodiment; fig. 2 is a schematic structural diagram of the flattening wheel shown in fig. 1 flattening the end of the battery core.

Referring to fig. 1 and 2, the kneading wheel 11 shown in this embodiment includes: the extrusion part 110, the extrusion part 110 has an extrusion surface for attaching the edge of the end of the electric core 2; the flat part 111 is conical, the large end of the flat part 111 is connected to the pressing surface of the pressing part 110, and the side surface of the flat part 111 is used for contacting the end of the cell 2.

Specifically, the taper angle α of the flattening portion 111 shown in this embodiment is 30 ° to 90 °; the pressing portion 110 shown in this embodiment may have a cylindrical shape, and the pressing portion 110 is arranged coaxially with the kneading flat portion 111; the kneading and flattening wheel 11 shown in this embodiment can be a ceramic kneading and flattening wheel, and is processed by a hard ceramic material, so that the hardness of extrusion and flattening can be ensured, and the kneading and flattening wheel has insulation property and improves safety.

In the embodiment, the pressing portion 110 and the flattening portion 111 are designed on the flattening wheel 11, so that the flattening wheel 11 rotates along with the mechanical flattening to flatten the end of the battery cell 2, the pressing surface on the pressing portion 110 can be attached to the edge of the end of the battery cell 2 toward the side surface of the battery cell 2 to limit and press the edge of the end of the battery cell 2, and the side surface of the flattening portion 111 contacts the end surface of the battery cell 2 to flatten the end surface of the battery cell 2, so that the material at the end of the battery cell 2 close to the edge can be gradually tightened towards the axis of the battery cell 2, thereby ensuring the flatness and compactness of the end of the battery cell 2 and preventing the problem of material eversion at the edge of the end of the battery cell 2 to a certain extent.

As shown in fig. 1, in one preferred embodiment, an annular female corner structure 112 is formed between the side surface of the flattening portion 111 and the end surface of the pressing portion 110, and the cross-sectional profile of the female corner structure 112 along the axial direction thereof is any one of an arc shape and a straight shape, or a combination of at least one of the arc shape and the straight shape.

In the present embodiment, based on the design of the reentrant corner structure 112, when the end of the battery cell 2 is mechanically kneaded and flattened, a corner structure having an arc-shaped or linear transition may be formed between the end surface and the side surface of the battery cell 2, and the corner structure may have a combination shape of a plurality of arc-shaped portions, a plurality of linear portions, or a combination shape of a plurality of arc-shaped portions and linear portions. Thus, the corner structure can be formed on the edge of the end part of the battery cell 2 by mechanical kneading, so that the problem of material eversion at the edge part of the end part of the battery cell 2 is effectively prevented.

FIG. 3 is a second structural view of a kneading wheel according to this embodiment; fig. 4 is a schematic structural diagram of the flattening wheel shown in fig. 3 flattening the end of the battery core.

Referring to fig. 3 and fig. 4, based on the improvement of the above embodiment, the kneading flat wheel 11 shown in the present embodiment forms an annular male corner structure 114 between the side surface of the kneading flat part 111 and the pressing surface, so that when the end of the battery cell 2 is mechanically kneaded, under the pressing of the male corner structure 114, the material of the end of the battery cell 2 near its edge gradually tightens toward the axial center of the battery cell 2 to a greater extent until the female corner structure corresponding to the male corner structure 114 is formed at the edge of the battery cell 2. Therefore, the problem of material eversion at the edge part of the end part of the battery cell 2 is effectively prevented while the smoothness and the compactness of the end part of the battery cell 2 are ensured.

As shown in fig. 3, the external corner structure 114 shown in this embodiment is a truncated cone, and the truncated cone and the flattening portion 111 are coaxially arranged, so that uniformity of stress applied to each portion around the end of the battery cell 2 during flattening of the battery cell 2 can be ensured, the beauty of the internal corner structure formed by flattening the end of the battery cell 2 can be ensured, and a good flattening effect can be ensured.

As shown in fig. 3, the truncated cone of the present embodiment has the same taper angle as the flattening portion 111, so that a step-like structure as shown in fig. 4 can be formed at the end of the cell 2 during the flattening process, thereby effectively preventing the side material of the formed upper step structure from turning outwards while ensuring the flatness and compactness of the upper step surface corresponding to the end of the cell 2. At the same time, even if there is a situation that part of the material turns outwards, the material that turns outwards can be prevented from protruding to the side wall area of the battery core 2 along the radial direction.

As shown in fig. 3, in order to further prevent the material from turning out at the corner position of the upper step structure formed by flattening the end of the battery cell 2, the flattening wheel 11 shown in the present embodiment further forms an annular transition surface 115 between the mesa of the truncated cone and the side surface of the flattening portion 111, and the cross-sectional profile of the transition surface 115 along the axial direction thereof is any one of an arc shape and a straight shape, or a combination of at least one of the arc shape and the straight shape.

As shown in fig. 1 and fig. 3, in order to facilitate the installation and use of the kneading flat wheel 11, the kneading flat wheel 11 shown in this embodiment further includes a connecting shaft 113, and one end of the connecting shaft 113 is connected to one end of the pressing part 110 away from the kneading flat part 111, wherein the connecting shaft 113, the pressing part 110, and the kneading flat part 111 are coaxially arranged.

FIG. 5 is a schematic top view of a mechanical kneading block provided in this embodiment; fig. 6 is a schematic cross-sectional view of the mechanical flattening head of fig. 5 flattening the end of the battery cell shown in this embodiment.

Referring to fig. 5, the embodiment further provides a mechanical kneading flat head 1, which comprises a rotating disc 12, a negative pressure suction nozzle 13 and the kneading flat wheel 11, wherein the rotating disc 12 is provided with a vent hole; the kneading flat wheel 11 is arranged on the first plate surface of the rotating plate 12, and the small head end of the kneading flat part 111 corresponding to the kneading flat wheel 11 extends to the plate center of the rotating plate 12; the negative pressure suction nozzle 13 and the kneading and flattening wheel 11 are positioned on the same side of the rotating disk 12, the negative pressure suction nozzle 13 is arranged at one end of a vent hole, and the other end of the vent hole is used for communicating a negative pressure device.

Specifically, the kneading and flattening wheel 11 shown in the present embodiment includes a plurality of wheels, and is circumferentially and uniformly distributed with respect to the center of the rotating disc 12; the contact surfaces of the kneading and flattening wheels 11 for contacting the corresponding ends of the battery cells 2 are positioned on the same plane and perpendicular to the central axis of the rotating disc 12. Therefore, in the process that each kneading flat wheel 11 rotates along with the rotating disc 12, the extrusion surface of the corresponding extrusion part 110 of each kneading flat wheel 11 is attached to the edge of the end part of the electric core 2, meanwhile, the side surface of the corresponding kneading flat part 111 of each kneading flat wheel 11 is in contact with the end surface of the electric core 2, and the end part of the electric core 2 is kneaded flat simultaneously along the circumferential direction based on the plurality of kneading flat wheels 11, so that the force uniformity of the end part of the electric core 2 is ensured, the kneading flat efficiency is greatly improved, and a better mechanical kneading flat effect is achieved.

Meanwhile, in the flattening process, by starting the negative pressure device, the dust with different particle sizes generated by flattening can be effectively collected by the negative pressure suction nozzle 13, the dust with smaller particle size is prevented from being attached to the mechanical flattening head 1 and related equipment due to electrostatic action, and the dust can be prevented from escaping into the station environment, so that the cleanness and no pollution of the station environment are ensured.

As shown in fig. 5, in order to achieve a better dust collecting effect, the negative pressure suction nozzles 13 shown in this embodiment include a plurality of negative pressure suction nozzles 13, which are uniformly distributed in a circle with respect to the center of the rotating disk 12, two ends of the negative pressure suction nozzles 13 are arranged in a large and small manner, and a large end of the negative pressure suction nozzles 13 is used for facing the electric core 2, wherein the kneading wheels 11 and the negative pressure suction nozzles 13 may be arranged in a one-to-one opposite manner, so as to greatly improve the dust collecting efficiency.

Meanwhile, the port shape of the negative pressure suction nozzle 13 shown in the present embodiment includes any one of a flat shape, a circular shape, and a regular polygon shape. As shown in fig. 5, in order to reduce the space occupied by the negative pressure suction nozzle 13 as much as possible, the port shape of the negative pressure suction nozzle 13 shown in the present embodiment is preferably flat.

As shown in fig. 5, the kneading wheel 11 shown in the present embodiment is rotatably mounted on a bearing holder 14, and the bearing holder 14 is adjustably mounted on the first plate surface of the rotating plate 12 in the radial direction. In this way, when flattening the end of the cell 2, the mounting position of the flattening wheel 11 on the rotating disc 12 can be adaptively adjusted in the radial direction based on the diameter of the cell 2, so as to meet the actual flattening requirement. Meanwhile, in the kneading and flattening process, the kneading and flattening wheel 11 is rotatably arranged on the bearing support 14, so that the kneading and flattening wheel 11 is contacted with the end part of the battery cell 2 in a rolling manner, the damage to the end part of the battery cell 2 caused by direct rigid contact in kneading and flattening is effectively prevented, and the kneading and flattening wheel 11 can be effectively protected.

In one embodiment, a plurality of sliding grooves are disposed on the disk surface of the rotating disk 12, each sliding groove is distributed along the radial direction of the rotating disk 12, the sliding grooves correspond to the bearing supports 14 one by one, and the bearing supports 14 are provided with sliding blocks matched with the sliding grooves. After the installation position of the kneading wheel 11 on the rotating disc 12 is adjusted, the bearing support 14 and the rotating disc 12 can be fastened into a whole through a bolt assembly.

As shown in fig. 5, the center of the rotating disc 12 in this embodiment is further connected to one end of the ejector pin 15, and the other end of the ejector pin 15 is used for abutting against the axis of the electric core 2. From this, can carry out better axial positioning and fixed to electric core 2 based on thimble 15, ensure electric core 2 and rub the axiality of flat in-process to reach better and rub flat effect.

As shown in fig. 6, based on the improvement of the above embodiment, the present embodiment is further provided with a transmission shaft 16, the transmission shaft 16 is of a hollow structure, one end of the transmission shaft 16 is connected to the second disc surface of the rotating disc 12 and is communicated with the ventilation hole, the middle part of the transmission shaft 16 is used for connecting the rotary driving mechanism 4, and the other end of the transmission shaft 16 is used for communicating the negative pressure device.

Specifically, in the embodiment, a flange is disposed at one end of the transmission shaft 16 close to the rotating disc 12, so that the transmission shaft 16 can be connected to the second disc surface of the rotating disc 12 through the flange. A through axial through hole is formed in the transmission shaft 16, and the axial through hole is in a gradually expanding structure at one end close to the rotating disc 12 and corresponds to each vent hole in the rotating disc 12.

As shown in fig. 6, the transmission shaft 16 shown in this embodiment is rotatably installed in the fixed bearing seat 6, and since the middle part of the transmission shaft 16 is connected with the rotary driving mechanism 4, and one end of the transmission shaft 16 far away from the rotating disc 12 is also communicated with the negative pressure device, the transmission shaft 16 shown in this embodiment not only has a mechanical transmission function to drive the rotating disc 12 to rotate, but also serves as an air transmission channel, so that dust generated by kneading and flattening can be subjected to dust collection by each negative pressure suction nozzle 13 when the negative pressure device sucks air.

Fig. 7 is a schematic view of a front view structure of a cell flattening device provided in this embodiment; fig. 8 is a schematic structural view of the mechanical kneading mechanism of the present embodiment.

As shown in fig. 7, based on the improvement of the foregoing embodiment, the cell flattening device shown in this embodiment includes the above-mentioned mechanical flattening head 1, wherein the cell flattening device includes two oppositely-arranged mechanical flattening mechanisms, each mechanical flattening mechanism includes a linear module 3, a rotation driving mechanism 4 and the mechanical flattening head 1, the rotation driving mechanism 4 is installed on a sliding table of the linear module 3, and an output end of the rotation driving mechanism 4 is connected to the mechanical flattening head 1. Therefore, when the battery core 2 is flattened, the two mechanical flattening mechanisms slide relatively and approach each other, so that the two mechanical flattening heads 1 are respectively contacted with the two end faces of the battery core 2; after contact, the mechanical flat kneading head 1 kneads two ends of the electric core 2 flatly through rotary extrusion; after the kneading and flattening is finished, the two mechanical kneading and flattening mechanisms slide back to the two ends of the battery cell 2 so as to reset, so that other battery cells to be kneaded and flattened can be replaced conveniently.

Specifically, the linear modules 3 shown in this embodiment may be linear motor modules known in the art, and the moving directions of the linear modules 3 corresponding to the two mechanical kneading and flattening mechanisms are the same linear direction, that is, the sliding tables of the two linear modules 3 can move in opposite directions or away from each other. The rotation drive mechanism 4 shown in this embodiment includes a reduction motor 41, and the reduction motor 41 is composed of a servo motor and a planetary reducer.

As shown in fig. 7, a fixed seat 5 is provided on the sliding table of the linear module 3, a speed reducing motor 41 is installed on the fixed seat 5, and an output end of the speed reducing motor 41 is connected with the transmission shaft 16 on the mechanical kneading head 1 through a belt transmission mechanism 42.

As shown in fig. 8, in order to further ensure the stability of the rotation of the mechanical smoothing head 1, the output end of the speed reduction motor 41 shown in this embodiment is connected to the transmission shaft 16 on the mechanical smoothing head 1 through the gear transmission mechanism 43.

Preferably, this embodiment further provides a flattening method based on the above battery cell flattening device, including: the installation position of the kneading flat wheel 11 on the rotating disc 12 is adjusted along the radial direction according to the diameter of the battery core 2, and the axial distance between the two mechanical kneading flat heads 1 is adjusted according to the length of the battery core 2, so that the battery core 2 is clamped between the two mechanical kneading flat heads 1; and starting the rotary driving mechanism 4, and mechanically kneading and flattening the two ends of the battery cell 2.

Specifically, when the battery cell 2 is flattened, the mounting position of the bearing support 14 on the first disc surface of the rotating disc 12 is adjusted in the radial direction according to the diameter of the battery cell 2, so that the mounting position of the flattening wheel 11 on the rotating disc 12 is adjusted correspondingly; starting the linear modules 3 corresponding to the two mechanical flat kneading mechanisms according to the length of the battery cell 2, so that the mechanical flat kneading heads 1 on the two mechanical flat kneading mechanisms move in the opposite direction or in the opposite direction until the battery cell 2 is clamped between the two mechanical flat kneading heads 1, and the thimbles 15 on the two mechanical flat kneading heads 1 are correspondingly abutted to the axes of the two ends of the battery cell 2; and finally, starting the speed reducing motors 41 on the two mechanical flattening mechanisms to drive the mechanical flattening heads 1 to rotate, so that mechanical flattening of two ends of the battery cores with different diameters and lengths is realized, and a better flattening effect can be achieved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical kneading head capable of automatically collecting dust is characterized by comprising:

the rotary disc is provided with a vent hole;

the kneading and flattening wheel is installed on the first disc surface of the rotating disc and comprises a pressing part and a kneading and flattening part, the pressing part is provided with a pressing surface which is used for being attached to the edge of the end part of the battery cell, the kneading and flattening part is conical, the large head end of the kneading and flattening part is connected with the pressing surface of the pressing part, the small head end of the kneading and flattening part extends to the disc center of the rotating disc, an annular external corner structure is formed between the side surface of the kneading and flattening part and the pressing surface, and the side surface of the kneading and flattening part is used for contacting the end part of the battery cell;

the negative pressure suction nozzle and the kneading flat wheel are positioned on the same side of the rotating disc, the negative pressure suction nozzle is installed at one end of the vent hole, and the other end of the vent hole is used for being communicated with a negative pressure device.

2. The mechanical kneading block for automatic dust collection according to claim 1, further comprising: the transmission shaft is of a hollow structure, one end of the transmission shaft is connected to the second disc surface of the rotating disc and communicated with the vent hole, the middle of the transmission shaft is used for being connected with a rotary driving mechanism, and the other end of the transmission shaft is used for being communicated with the negative pressure device.

3. The mechanical kneading block for automatic dust collection according to claim 1, wherein the negative pressure suction nozzle comprises a plurality of negative pressure suction nozzles, two ends of each negative pressure suction nozzle are arranged in a large-small mode, and the large-end of each negative pressure suction nozzle is used for facing the battery cell.

4. The mechanical kneading block for automatic dust collection according to claim 3, wherein the port shape of the negative pressure suction nozzle includes any one of a flat shape, a circular shape, and a regular polygon shape.

5. The mechanical flat head for automatically collecting dust according to any one of claims 1 to 4, wherein the disk center of the rotating disk is further connected with one end of an ejector pin, and the other end of the ejector pin is used for abutting against the axis of a battery cell.

6. The mechanical kneading block for automatic dust collection according to any one of claims 1 to 4, wherein the kneading wheel comprises a plurality of kneading blocks and is circumferentially and uniformly distributed with respect to the center of the rotating disk.

7. The mechanical kneading head for automatic dust collection according to claim 6, wherein the kneading wheel is rotatably mounted on a bearing support which is radially adjustably mounted on the first plate surface of the rotating plate; and/or the kneading flat wheels and the negative pressure suction nozzles are arranged in a one-to-one opposite mode.

8. A cell flattening device, characterized by comprising the automatic dust collecting mechanical flattening head of any one of claims 1 to 7.

9. The cell flattening device of claim 8, comprising two mechanical flattening mechanisms, wherein the two mechanical flattening mechanisms are arranged oppositely along the length direction of the cell; the mechanical flat kneading mechanism comprises a linear module, a rotary driving mechanism and a mechanical flat kneading head capable of automatically collecting dust, wherein the rotary driving mechanism is installed on a sliding table of the linear module, and an output end of the rotary driving mechanism is connected with the mechanical flat kneading head capable of automatically collecting dust.