CN116387597A

CN116387597A - Cap finishing device and cylindrical battery liquid injection equipment

Info

Publication number: CN116387597A
Application number: CN202310440249.3A
Authority: CN
Inventors: 袁海霞; 何仁雄; 张彪; 罗跃荣; 谌荥荣
Original assignee: SHENZHEN HENGRUIXING AUTOMATION EQUIPMENT CO Ltd
Current assignee: SHENZHEN HENGRUIXING AUTOMATION EQUIPMENT CO Ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-07-04

Abstract

The invention relates to the technical field of cylindrical battery processing equipment, and particularly discloses a cap arranging device and cylindrical battery liquid injection equipment. The cap arranging device comprises a first driving mechanism and a plurality of first magnets arranged in rows, each first magnet corresponds to one non-liquid-injected cylindrical battery, the first driving mechanism is used for driving all the first magnets to approach the non-liquid-injected cylindrical battery, which is inclined towards the same side of the first magnets, of the cap so as to attract the cap and lift the non-liquid-injected cylindrical battery, the relative positions of the cap and the battery case of the non-liquid-injected cylindrical battery are adjusted, all the caps are adjusted to have the same space orientation, and the same magnetic poles of all the first magnets face the front end, which is close to the non-liquid-injected cylindrical battery, of the first magnets. This block finishing device can arrange the block of not annotating liquid cylindrical battery in batches fast, and the block after the arrangement has neat space orientation to supplementary improvement annotates liquid efficiency.

Description

Cap finishing device and cylindrical battery liquid injection equipment

Technical Field

The invention relates to the technical field of cylindrical battery processing equipment, in particular to a cap arranging device and cylindrical battery liquid injection equipment.

Background

When cylindrical battery is produced, the liquid injection process is involved. In general, the electrolyte injection step is to inject an electrolyte into a cylindrical battery without injection. Specifically, as shown in fig. 1 and 2, the structure of the cylindrical battery without liquid injection includes a battery case 101, a winding core (not labeled in the drawings), a cap 102 and a tab 103, wherein the winding core is accommodated in the battery case 101, the tab 103 is connected with the winding core and extends outwards from the inside of the battery case 101 and is connected with the cap 102, an annular groove 1010 (i.e. a girdle) is formed on an outer wall body of the battery case 101 far away from the bottom, a notch of the annular groove 1010 faces away from a central axis of the battery case 101, and a groove bottom wall is protruded towards the central axis direction of the battery case 101, so that the winding core is fixed in the battery case 101.

In the process of filling, since the cap 102 has a certain weight above the battery case 101 and the tab 103 is made of a metal material with a certain flexibility, the spatial orientation of the cap 102 is different, which affects the filling effect. To eliminate the interference of the cap 102 with the injection, the prior art uses a manual or mechanical device to sort the cap 102 on the cylindrical battery 100 without the injection, so that the cap 102 is deviated from the center axis of the battery case 101. However, in the prior art, the trimming effect of the cap 102 is not ideal, and the effect is mainly shown after trimming the non-injected cylindrical batteries 100 in the same batch, it is still difficult to make the cap 102 have a regular and uniform space orientation, and during the injection, the electrolyte is easy to fall on the cap 102 or the cap 102 still interferes with the injection process, and meanwhile, the trimming efficiency of the cap 102 is low, so that the injection efficiency of the cylindrical batteries is low.

Disclosure of Invention

The embodiment of the invention aims to provide a cap sorting device and cylindrical battery liquid injection equipment, and aims to at least solve the problems of poor cap sorting effect and low sorting efficiency in the existing cylindrical battery production.

In order to achieve the above purpose, the technical scheme adopted by the embodiment of the invention is as follows:

the cap sorting device is used for sorting caps of cylindrical batteries without liquid injection;

the cap sorting device comprises a first driving mechanism and a plurality of first magnets arranged in rows, each first magnet corresponds to a cap of one cylindrical battery without liquid injection, and the same magnetic poles of all the first magnets face to the front end of the first magnet, which is close to the cylindrical battery without liquid injection;

when all caps of the non-injected cylindrical batteries are inclined to the same side of the first magnet, the first driving mechanism drives all the first magnets to approach the non-injected cylindrical batteries to the non-injected cylindrical batteries, and holds the caps and lifts the non-injected cylindrical batteries, so that the relative positions of the caps and the battery cases of each non-injected cylindrical battery are adjusted, and all the caps are adjusted to have the same spatial orientation.

In one possible embodiment, the cap grooming device further comprises:

a base, wherein the cap is provided with a first surface welded with the tab, and the first surface faces the base;

at least one set of cap sorting assembly, each set of cap sorting assembly comprises a first driving mechanism and a sorting mechanism, the first driving mechanism is installed on the base, the sorting mechanism comprises a first magnet, and the first driving mechanism drives the sorting mechanism to move along a first track and suck the caps so as to lift the cylindrical battery without liquid injection.

In one possible implementation manner, the arrangement mechanism further comprises a first fixing seat, and the first magnet is fixed in the first fixing seat so as to attract one of the caps correspondingly.

In one possible implementation manner, the cap arranging device is used for arranging caps of the non-injected cylindrical batteries in a state that a plane is formed by the central axes of the non-injected cylindrical batteries arranged in a row, the first surface faces the base and an included angle formed by the first surface and the plane is 0-80 degrees.

In one possible embodiment, the cap grooming device further comprises:

The positioning assembly comprises a second driving mechanism and a positioning leaning seat, the second driving mechanism is arranged on the base, the positioning leaning seat is provided with an avoidance hollowed-out part and a limiting groove, the avoidance hollowed-out part penetrates through the side wall of the positioning leaning seat to the limiting groove, the central shaft of the limiting groove is parallel to the first track, and the second driving mechanism is used for driving the positioning leaning seat to move along the second track so as to position the non-injected cylindrical battery;

at least one group of suction components, each group of suction components comprises a third driving mechanism and a suction mechanism, the third driving mechanism is installed on the base, and the third driving mechanism is used for driving the suction mechanism to move along a track parallel to the second track and to be inserted into the limit groove by the avoidance hollow part so as to suck the cylindrical battery without liquid injection.

In one possible implementation manner, the suction mechanism comprises a second fixing seat and at least one group of clamping components, one end of each group of clamping components is connected with the second fixing seat, the other end of each group of clamping components is used for clamping and fixing one cylindrical battery without liquid injection, and each group of clamping components corresponds to one first magnet.

In one possible implementation manner, the clamping assembly comprises a magnet clamping plate, a second magnet and a clamping groove plate, wherein one ends of the magnet clamping plate and the clamping groove plate are respectively arranged on the second fixing seat, and the second magnet is arranged at the other end of the magnet clamping plate so as to magnetically attract the non-injected cylindrical battery; the other end part of the clamping groove plate is provided with an annular positioning protrusion, and the annular positioning protrusion is used for being clamped and inserted into the beam waist of the cylindrical battery without liquid injection.

In one possible implementation manner, the base comprises a bottom plate, a fixed plate and a connecting plate, wherein the bottom plate is perpendicular to the first track and parallel to the second track, the connecting plate is connected with the bottom plate and the fixed plate, the first driving mechanism is installed on the fixed plate, and the second driving mechanism and the third driving mechanism are installed on the upper surface and the lower surface of the bottom plate respectively.

In one possible implementation manner, the cap sorting device further comprises a lifting component, wherein the lifting component is connected with the base to drive the base to carry the cap sorting component, the positioning component and the suction component to move along a track parallel to the first track.

In one possible embodiment, the cap collating device further comprises a guide rail seat, wherein the part of the lifting assembly penetrates through the guide rail seat and is connected with the base, and the guide rail seat is used for connecting the cap collating device with a track of the cylindrical battery liquid injection device so as to enable the cap collating device to move on the track.

In one possible embodiment, the cap arranging device further comprises a sensing assembly for sensing a lifting process of the lifting assembly, and the sensing assembly is connected with the guide rail seat.

Compared with the prior art, the cap sorting device provided by the embodiment of the invention has the advantages that the first driving mechanism and the plurality of first magnets arranged in rows are arranged, the same magnetic poles of all the first magnets face the front ends of the first magnets close to the non-injected cylindrical batteries, each first magnet corresponds to the cap of one non-injected cylindrical battery, the first driving mechanism drives the first magnets to magnetically attract the plurality of non-injected cylindrical batteries, which incline towards the same side of the first magnet, of the cap so as to lift the non-injected cylindrical batteries, after each non-injected cylindrical battery is lifted, the relative positions of the cap and the battery case are adjusted, so that the caps of one batch of non-injected cylindrical batteries have the neat space orientation.

A second aspect of the embodiment of the present invention provides a cylindrical battery liquid injection apparatus, which adopts the following technical scheme:

a cylindrical battery fluid injection apparatus comprising:

the device comprises a device body, a control system and a control system, wherein the device body is provided with a track;

the cap sorting device comprises a guide rail seat;

the guide rail seat is arranged on the track;

the control system is electrically connected with the first driving mechanism, so that the first driving mechanism is controlled to drive the first magnet to move along a first track and adsorb the cap to lift the cylindrical battery without liquid injection, the relative positions of the cap and the battery case of the cylindrical battery without liquid injection are adjusted, and all the caps are adjusted to have the same space orientation.

In one possible embodiment, the cap grooming device further comprises:

the positioning assembly comprises a second driving mechanism and a positioning leaning seat, the second driving mechanism is electrically connected with the control system, the second driving mechanism drives the positioning leaning seat to move along a second track so as to position the non-liquid-injected cylindrical battery, the positioning leaning seat is provided with an avoidance hollowed-out part and a limiting groove, the avoidance hollowed-out part penetrates from the side wall of the positioning leaning seat to the limiting groove, and the central shaft of the limiting groove is parallel to the first track;

The suction assembly comprises a third driving mechanism and a suction mechanism, the third driving mechanism is electrically connected with the control system, the suction mechanism is driven by the third driving mechanism to move along a track parallel to the second track, and the suction mechanism is inserted into the limit groove by the avoidance hollow part so as to clamp and suck the non-injected cylindrical battery;

the lifting assembly is electrically connected with the control system, and the lifting assembly drives the cap arranging assembly, the positioning assembly and the suction assembly to move along a track parallel to the first track.

Compared with the prior art, the cylindrical battery liquid injection equipment provided by the embodiment of the invention has the advantages that the cap arrangement device is included, so that the caps of the batch of non-liquid injection cylindrical batteries can be arranged rapidly, the caps of one batch of non-liquid injection cylindrical batteries have regular space orientation, and the cap arrangement efficiency is high, and the space orientation of the caps of the same batch of non-liquid injection cylindrical batteries is regular, so that the liquid injection process of the cylindrical batteries can be effectively improved, and finally the processing efficiency of the cylindrical batteries is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a cylindrical battery without liquid injection according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the non-flooded cylindrical battery of FIG. 1 from another perspective;

fig. 3 is a schematic perspective view of a cap sorting device according to an embodiment of the present invention;

fig. 4 is an exploded view of the cap collating device according to the embodiment of the present invention;

fig. 5 is a schematic perspective view of a base according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a cap trimming assembly according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a positioning assembly according to an embodiment of the present invention;

fig. 8 is a schematic perspective view of an engaging assembly according to an embodiment of the present invention;

FIG. 9 is an enlarged partial schematic view at M in FIG. 8;

Fig. 10 is a schematic perspective view illustrating an assembled state of a lifting assembly, a guide rail seat and an induction assembly according to an embodiment of the present invention;

FIG. 11 is a schematic side view of a cap grooming device provided in an embodiment of the invention with the housing assembly removed;

fig. 12 is a partial schematic view of a cylindrical battery liquid injection device according to an embodiment of the present invention;

FIG. 13 is a schematic diagram showing steps a-c of cap finishing performed by the cylindrical battery liquid injection device shown in FIG. 12;

FIG. 14 is a schematic diagram showing steps d-f of cap finishing performed by the cylindrical battery liquid injection device shown in FIG. 12;

FIG. 15 is a schematic diagram showing steps g-h of cap finishing performed by the cylindrical battery liquid injection device shown in FIG. 12;

FIG. 16 is a schematic top view of an array of non-flooded cylindrical batteries in accordance with an embodiment of the invention, prior to cap trimming;

fig. 17 is a schematic top view of the cylindrical battery filling apparatus according to the embodiment of the present invention shown in fig. 16 after cap trimming.

Reference numerals:

100. a cylindrical battery without liquid injection; 101. a battery case; 1010. an annular groove; 102. capping; 1021. a first surface; 103. a tab; 200. a tray;

10. a cap collating device;

11. a base; 111. a bottom plate; 112. a fixing plate; 113. a connecting plate;

12. A cap collating assembly; 121. a first driving mechanism; 122. a finishing mechanism; 1221. a first magnet; 1222. a first fixing seat; 123. a first connector;

13. a positioning assembly; 131. a second driving mechanism; 132. positioning the leaning seat; 1321. avoidance hollowed-out parts; 1322. a limit groove; 133. a second connector;

14. a suction assembly; 141. a third driving mechanism; 142. a suction mechanism; 1421. the second fixing seat; 1422. a clamping component; 14221. a magnet clamping plate; 14222. a second magnet; 14223. a slot plate; 143. a third connecting member;

15. a lifting assembly; 151. a fourth driving mechanism; 152. a transmission mechanism; 153. a mounting base; 154. a guide shaft; 16. a guide rail seat; 17. an induction assembly; 171. an adjusting shaft; 172. a sensor;

18. a housing assembly; 181. a first cover; 182. a second cover;

20. a cylindrical battery liquid injection device; 21. an apparatus main body; 211. a track; 22. and (5) a station.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The details of the cap grooming device 10 and its various components according to an embodiment of the present invention are shown in fig. 1-11.

Referring to fig. 1, 2 and 3, the cap sorting device 10 provided by the embodiment of the invention is suitable for batch sorting of non-injected cylindrical batteries 100, so that caps 102 above the battery case 101 deviate from the central axis of the battery case 101 and have a neat space orientation, which is beneficial for automatic injection in the following.

Specifically, the non-injected cylindrical battery 100 according to the present invention refers to a semi-finished product including a winding core (not shown), tabs 103, caps 102, and a battery case 101 having a receiving cavity. The winding core is accommodated in the accommodating cavity of the battery case 101, the tab 103 is connected with the winding core and extends from the accommodating cavity to the outside of the battery case 101 to be connected with the cap 102, the cap 102 is provided with a first surface 1021, the first surface 1021 is used for being welded with the tab 103, so that the tab 103 is connected with the cap 102, an annular groove 1010 is formed in an outer wall body, far away from the bottom, of the battery case 101, a notch of the annular groove 1010 faces away from the central axis of the battery case 101, and the groove bottom wall protrudes towards the central axis direction of the battery case 101, so that the winding core is fixed in the battery case 101.

Referring to fig. 2, 3, 4 and 11, the cap sorting device 10 provided by the embodiment of the invention includes a first driving mechanism 121 and a plurality of first magnets 1221 arranged in rows, wherein the same magnetic poles of all the first magnets 1221 face the front end of the first magnet 1221 close to the non-injected cylindrical battery 100, and each first magnet 1221 corresponds to the cap 102 of one non-injected cylindrical battery 100; when the caps 102 of all the non-injected cylindrical batteries 100 are tilted to the same side as the first magnets 1221, the first driving mechanism 121 drives all the first magnets 1221 toward the non-injected cylindrical batteries 100 to suck the caps 102 and lift the non-injected cylindrical batteries 100 so that the relative positions of the caps 102 and the battery cases 101 of each non-injected cylindrical battery 100 are adjusted and all the caps 102 are adjusted to have the same spatial orientation.

Referring to fig. 2, 4, 5, 6, and 11, in some embodiments, the cap collating device 10 includes a base 11 and at least one set of cap collating assemblies 12, the caps 102 of the non-liquid filled cylindrical batteries 100 have a first surface 1021 welded to the tabs 103, and the cap collating device 10 is adapted to collate the first surface 1021 toward the caps 102 of the non-liquid filled cylindrical batteries 100 of the base 11; each set of cap collating assemblies 12 includes a first drive mechanism 121 and a collating mechanism 122, the first drive mechanism 121 is mounted to the base 11, the collating mechanism 122 includes a first magnet 1221, and the collating mechanism 122 is driven by the first drive mechanism 121 to move along a first trajectory (PQ) and to suck the caps 102 to lift the non-filled cylindrical batteries 100.

In some embodiments, the cap arranging device 10 is suitable for arranging caps 102 of a batch of non-injected cylindrical batteries 100 with an included angle (α) between the first surface 1021 and a plane (i.e., a plane OO') where the central axes of all the battery cases 101 are located when the battery cases 101 of the non-injected cylindrical batteries 100 are in a normal position, and if the included angle between the first surface 1021 and the plane is too large, such as in a plurality of non-injected cylindrical batteries 100 arranged in a row, a part of the first surfaces 1021 of the caps 102 face away from the base 11, and a part of the first surfaces 1021 of the caps 102 face toward the base 11, the cap arranging device 10 cannot implement the arrangement of the caps 102, which affects the treatment of the non-injected cylindrical batteries 100 in subsequent processes, such as the injection of the non-injected cylindrical batteries 100 after the injection nozzle cannot travel in the same direction, and so on. All caps 102 have the same spatial orientation, as adjusted. In this embodiment, the same spatial orientation refers to any angle between the planes (OO') of all the first surfaces 1021 and the central axes of all the cells of the row of non-injected cylindrical cells 100 in the caps 102 of the row of non-injected cylindrical cells 100 that are adjusted, and the optimal same spatial orientation achieves the coplanar effect towards all the first surfaces 1021. It should be noted that, the plane (OO ') may be a reference plane (OO'), that is, when several cylindrical batteries 100 without liquid injection are placed in a row, each battery case 101 has a central axis, and the central axes of all battery cases 101 in the same row are coplanar, which is the plane (OO ') in the optimal state, and if several cylindrical batteries 100 without liquid injection are placed with unavoidable engineering errors or are difficult to be completely consistent, the central axes of some battery cases 101 may not be completely in the same plane as the central axes of other battery cases 101, but have small errors, and then, the plane where the central axes are shared when all the battery cases 101 with no liquid injection are accurately placed in the same row may be taken as the reference plane (OO').

Referring to fig. 2, 4, 5, 6, and 11, in some embodiments, the base 11 includes a bottom plate 111, a fixing plate 112, and a connecting plate 113. Wherein the connecting plate 113 connects the bottom plate 111 and the fixed plate 112, and the first driving mechanism 121 is mounted on the fixed plate 112. In some embodiments, the base 11 may be obtained by assembling the base 111, the connecting plate 113, and the fixing plate 112, which are components separately provided. In some alternative embodiments, the bottom plate 111, the connecting plate 113 and the fixing plate 112 are integrally formed, which may be that the bottom plate 111 and the connecting plate 113 are integrally formed, or that the connecting plate 113 and the fixing plate 112 are integrally formed. In some embodiments, the bottom plate 111 constituting the base 11 is horizontally disposed, i.e., perpendicular to the first track (the movement track of the first magnet 1221, PQ), and the fixing plate 112 is vertically disposed so as to be parallel to the first track. In some embodiments, the orthographic projection of the fixing plate 112 on the plane of the upper surface of the bottom plate 111 falls outside the area surrounded by the bottom plate 111, so that the bottom plate 111 does not interfere with the sorting process of the cap 102 when the first driving mechanism 121 drives the first magnet 1221 to move along the first track (PQ) to suck the non-injected cylindrical battery 100. Further, the side of the first surface 1021 facing the bottom plate 111, or the cap arranging device 10, is suitable for arranging the non-injected cylindrical batteries 100 with the first surface 1021 facing the main body of the base 11.

Referring to fig. 2 and 6, in some embodiments, each set of cap arranging assemblies 12 further includes a first connecting member 123, where the first connecting member 123 is used to connect the first fixing base 1222 and the first driving mechanism 121, and the connection between the first driving mechanism 121 and the first fixing base 1222 is achieved through the first connecting member 123, so that the reliability of installing the cap arranging assemblies 12 can be improved. In some embodiments, the first connector 123 and the first mount 1222 are two components that are provided separately, while in some embodiments, the first connector 123 and the first mount 1222 are integrally formed. In some embodiments, a single cap collating device 10 may include two sets of cap collating assemblies 12, with the two sets of cap collating assemblies 12 being spaced apart in rows to increase the number of caps 102 collated for a single non-filled cylindrical battery 100 and to increase the cap 102 collating efficiency. Of course, the number of cap collating assemblies 12 may be increased or decreased according to the actual situation, and is not limited to one or two groups, but may be more.

Referring to fig. 2, 6 and 11, in some embodiments, the first driving mechanism 121 is selected from a cylinder and other power devices that can drive the first magnet 1221 to move along a first trajectory (PQ). The use of a cylinder to drive the first magnet 1221 along a first trajectory to attract the cap 102 and thereby lift the non-filled cylindrical battery 100 can achieve a reliable and consistent stroke when the cap 102 is attracted. In some embodiments, the collating mechanism 122 further includes a first holder 1222, the first holder 1222 is connected to the first drive mechanism 121, and all of the first magnets 1221 are fixed in the first holder 1222 in rows and intervals such that each of the first magnets 1221 magnetically attracts one of the caps 102. In some embodiments, the N poles of all the first magnets 1221 fixed in the first holder 1222 are oriented toward the front end of the first magnets 1221 toward the non-filled cylindrical battery 100, or the S poles of all the first magnets 1221 are oriented toward the front end of the first magnets 1221 toward the non-filled cylindrical battery 100, to achieve effective magnetic attraction and arrangement of the cap 102. In some embodiments, the first magnet 1221 is partially embedded in the first holder 1222 and partially exposed at an end of the first holder 1222. When the first magnets 1221 magnetically attract the non-injected cylindrical batteries 100, the arrangement direction of all the first magnets 1221 is parallel to the arrangement direction of all the non-injected cylindrical batteries 100, and each first magnet 1221 corresponds to one non-injected cylindrical battery 100, so that each first magnet 1221 attracts the cap 102 of one non-injected cylindrical battery 100, and batch arrangement of the non-injected cylindrical batteries 100 is realized, thereby effectively improving arrangement efficiency of the cap 102. In some embodiments, the first magnet 1221 is selected from a permanent magnet. In some alternative embodiments, the first magnet 1221 is selected from an electromagnet, and when the electromagnet is the first magnet 1221, the first magnet 1221 is energized, the first magnet 1221 has a magnetic attraction effect on the cap 102, and after the power supply is stopped, the first magnet 1221 no longer has a magnetic attraction effect on the cap 102.

Referring to fig. 2, 3, 7, 8 and 11, in some embodiments, the cap collating device 10 further includes at least one set of positioning assemblies 13 and at least one set of engaging assemblies 14, the number of positioning assemblies 13 is the same as the number of cap collating assemblies 12, and the number of engaging assemblies 14 is the same as the number of cap collating assemblies 12, so as to effectively collate caps 102 of the non-injected cylindrical battery 100. In some embodiments, each set of positioning components 13 includes a second driving mechanism 131 and a positioning seat 132, the second driving mechanism 131 is mounted on the base 11, the positioning seat 132 is provided with an avoidance hollow portion 1321 and a limiting groove 1322, the avoidance hollow portion 1321 penetrates through the limiting groove 1322 from the side wall of the positioning seat 132, the central axis of the limiting groove 1322 is parallel to the first track (PQ), and the second driving mechanism 131 is used for driving the positioning seat 132 to move along the second track (RS) to position the non-injected cylindrical battery 100. Each set of engaging components 14 includes a third driving mechanism 141 and an engaging mechanism 142, the third driving mechanism 141 is mounted on the base 11, and the third driving mechanism 141 is used for driving the engaging mechanism 142 to move along a track parallel to the second track (RS) and to be inserted into the limiting groove 1322 by the avoiding hollow portion 1321 so as to suck the non-injected cylindrical battery 100. By arranging the positioning assembly 13 and the suction assembly 14, the non-injected cylindrical batteries 100 finished by the caps 102 can be fixed in the limit grooves 1322, so that batch and orderly transfer of the non-injected cylindrical batteries 100 finished by the caps 102 can be realized.

Referring to fig. 2, 7 and 8, in some embodiments, the second driving mechanism 131 is selected from a cylinder and other power devices that can drive the positioning seat 132 to move along the second track. In some embodiments, the diameter of the limiting groove 1322 of the positioning seat 132 is not smaller than the diameter of the battery case 101, so that each limiting groove 1322 can correspondingly accommodate one non-injected cylindrical battery 100, and the side wall of the avoidance hollowed-out portion 1321 self-positioning seat 132 penetrates through the positioning seat 132 and is communicated with the limiting groove 1322, so as to facilitate local penetration of the engaging mechanism 142. In some embodiments, each set of positioning assemblies 13 further includes a second connecting member 133, where the second connecting member 133 is used to connect the positioning seat 132 and the second driving mechanism 131, and by implementing connection between the second driving mechanism 131 and the positioning seat 132 through the second connecting member 133, reliability of installation of the positioning assemblies 13 may be improved.

Referring to fig. 2, 8, 9, and 11, in some embodiments, the third driving mechanism 141 may be selected from a cylinder and other power devices capable of driving the engaging mechanism 142 to move along a track parallel to the second track (RS), and it should be noted that the engaging mechanism 142 may move along a track parallel to the second track (RS), and may refer to that the movement tracks of the two tracks are mutually overlapped, or may refer to that the movement tracks of the two tracks are parallel and have a distance. In some embodiments, the actuation mechanism 142 includes a second fixing seat 1421 and at least one set of clamping components 1422, one end of each set of clamping components 1422 is connected to the second fixing seat 1421, the other end is used for clamping and fixing one non-injected cylindrical battery 100, and each set of clamping components 1422 corresponds to one first magnet 1221, so as to realize clamping and fixing one non-injected cylindrical battery 100 correspondingly. In some embodiments, each set of the actuating assemblies 14 further includes a third connecting member 143, the third connecting member 143 is used to connect the second fixing base 1421 and the third driving mechanism 141, and the third connecting member 143 is used to connect the third driving mechanism 141 and the second fixing base 1421, so that the reliability of installation of the actuating assemblies 14 can be improved.

Referring to fig. 2, 8, 9, and 11, in some embodiments, the snap assembly 1422 includes a magnet clamping plate 14221, a second magnet 14222, and a clamping plate 14223. One end of the magnet clamping plate 14221 is mounted on the second fixing seat 1421, and the other end is used for fixing the second magnet 14222, so as to realize magnetic attraction fixation of the non-injected cylindrical battery 100, specifically, magnetic attraction fixation of the battery case 101; one end of the clamping groove plate 14223 is mounted on the second fixing seat 1421, and an annular positioning protrusion (not labeled in the figure) is arranged at the other end of the clamping groove plate, and is used for being clamped and inserted into the beam waist of the non-liquid-filled cylindrical battery 100, so that clamping of the non-liquid-filled cylindrical battery 100 is realized. In some embodiments, a portion of the second magnet 14222 is embedded in the second fixing base 1421, and is partially exposed at an end of the second fixing base 1421. In some embodiments, the magnet clamping plate 14221 and the clamping groove plate 14223 are two components that are separately arranged, and the same set of the magnet clamping plate 14221 and the clamping groove plate 14223 are arranged at intervals along the extending direction of the first track (PQ), at this time, each avoidance hollowed-out portion 1321 of the positioning seat 132 includes a first through hole (not labeled in the figure) and a second through hole (not labeled in the figure), and the first through hole and the second through hole are respectively used for the magnet clamping plate 14221 and the clamping groove plate 14223 of the same set to pass through. In some embodiments, the magnet clamping plate 14221 and the clamping groove plate 14223 are integrally formed, the annular positioning protrusion and the second magnet 14222 are disposed at the same end of the integrally formed magnet clamping plate 14221 and the clamping groove plate 14223, and a space is provided between the two, and each avoidance hollow portion 1321 of the positioning seat 132 is a through hole for the integrally formed magnet clamping plate 14221 and the clamping groove plate 14223 to pass through. In some embodiments, the second magnet 14222 is selected from permanent magnets, and when the second magnet 14222 is used as the second magnet 14222, if the second magnet 14222 is not required to magnetically attract the battery case 101, the third driving mechanism 141 is required to drive the clamping assembly 1422 to move in a direction away from the non-injected cylindrical battery 100. In some alternative embodiments, the second magnet 14222 is selected from an electromagnet, and when the electromagnet is the second magnet 14222, the second magnet 14222 has a magnetic attraction effect on the battery case 101 when the second magnet 14222 is energized, and the second magnet 14222 does not have a magnetic attraction effect on the battery case 101 when the power supply is stopped.

Referring to fig. 4, 5, 7, 8 and 11, in some embodiments, the second driving mechanism 131 and the third driving mechanism 141 are respectively mounted on the upper and lower surfaces of the base 111, so as to effectively avoid interference between the second driving mechanism 131 and the third driving mechanism 141 when driving the respective components to move along the second track (RS). In some alternative embodiments, the second driving mechanism 131 is disposed on the lower surface of the base plate 111, and the third driving mechanism 141 is disposed on the upper surface of the mounting plate, which may be adjusted according to practical needs.

Referring to fig. 2, 4, 10 and 11, in some embodiments, the cap arranging device 10 further includes a lifting assembly 15, by which the base 11, the cap arranging assembly 12, the positioning assembly 13 and the actuating assembly 14 can be carried along a track parallel to the first track (PQ), so that the relative positions of the cap 102 and the battery case 101 of the non-injected cylindrical battery 100 sucked by the first magnet 1221 can be adjusted by itself, so that the caps 102 of the non-injected cylindrical battery 100 sucked up simultaneously have the same spatial orientation. In some embodiments, the lifting assembly 15 is connected to the base 11, and the lifting assembly 15 drives the base 11 to carry the cap arranging assembly 12, the positioning assembly 13 and the engaging assembly 14 along a track parallel to the first track (PQ) during the lifting movement.

Referring to fig. 4, 10 and 11, in some embodiments, the lifting assembly 15 includes a fourth driving mechanism 151 and a transmission mechanism 152, one end of the transmission mechanism 152 is connected to the base 11, and the fourth driving mechanism 151 is used for driving the transmission mechanism 152 to rotate so as to drive the base 11 to move along a track parallel to the first track (PQ), and further drive the cap sorting assembly 12, the positioning assembly 13 and the suction assembly 14 to move along a track parallel to the first track (PQ). In some embodiments, the fourth driving mechanism 151 may be selected from a motor, such as a servo motor, and a power device that may drive the transmission mechanism 152 to perform transmission. In some embodiments, the transmission mechanism 152 is selected from a screw assembly, and the screw assembly is driven by the fourth driving mechanism 151, so that the lifting mechanism drives the base 11, the cap arranging assembly 12, the positioning assembly 13 and the suction assembly 14 to perform lifting motion along a linear track. In some embodiments, the lifting assembly 15 further includes a mounting base 153 and a guide shaft 154, wherein the mounting base 153 is used for mounting the fourth driving mechanism 151, and the guide shaft 154 is disposed in parallel with the transmission mechanism 152 at a spacing, and one end is connected to the mounting base 153 and the other end is connected to the base 11. In some embodiments, the number of the guide shafts 154 is two, and the guide shafts 154 are separately arranged on two opposite sides of the transmission mechanism 152, so that the stability and reliability of the lifting motion of the lifting assembly 15 are improved by adding the guide shafts 154.

Referring to fig. 4, 10, 11, and 12, in some embodiments, the cap collating device 10 further includes a guide rail seat 16, the guide rail seat 16 being connected with the base 11 for connecting the cap collating device 10 with the rail 211 of the cylindrical battery filling apparatus 20 for the cap collating device 10 to move on the rail 211 to transfer the non-filled cylindrical battery 100 having completed the collation of the caps 102. In some embodiments, the lifting assembly 15 partially extends through the guide rail mount 16 and is coupled to the base 11, with indirect coupling of the guide rail mount 16 to the base 11 being achieved by the lifting assembly 15. By arranging the guide rail seat 16, batch transfer of the non-injected cylindrical batteries 100 finished with the caps 102 is realized, and transfer efficiency of the non-injected cylindrical batteries 100 is effectively improved. In some embodiments, the drive mechanism 152 and the guide shaft 154 extend through the guide rail mount 16, respectively.

Referring to fig. 4, 10 and 11, in some embodiments, the cap sorting device 10 further includes a sensing component 17, where the sensing component 17 is used to sense the lifting process of the lifting component 15, so as to improve the accuracy of the lifting movement of the lifting component 15. In some embodiments, the sensing assembly 17 is coupled to the guide rail mount 16. In some embodiments, the sensing assembly 17 includes an adjusting shaft 171, one end of the adjusting shaft 171 is mounted to the rail housing 16, the other end extends away from the base 11, and the adjusting shaft 171 is disposed in parallel with the transmission mechanism 152 at a distance, and at least one sensor 172 is mounted to the adjusting shaft 171 to effectively sense the lifting process of the lifting assembly 15.

Referring to fig. 3 and 4, in some embodiments, the cap organizing device 10 further includes a cover assembly 18, wherein the cover assembly 18 is connected to the base 11 to cover the base 11, the cap organizing assembly 12, the positioning assembly 13, and the engaging assembly 14. In some embodiments, the housing assembly 18 includes a first cover 181 and a second cover 182, wherein the first cover 181 is coupled to the base 11 to cover portions of the base 11, the cap organizer assembly 12, portions of the positioning assembly 13, and portions of the actuation assembly 14, and the second cover 182 is also coupled to the base 11 to cover the remainder of the base 11, the remainder of the positioning assembly 13, and the remainder of the actuation assembly 14. By providing the housing assembly 18, the cap collating device 10 is prevented from being affected by foreign matters falling into the cap 102 during operation, the aesthetic property of the cap collating device 10 is improved, and the effect of concealing the internal structure of the cap collating device 10 is achieved.

Referring to fig. 12 and fig. 1 to 11, based on the cap sorting device 10, an embodiment of the invention further provides a cylindrical battery filling apparatus 20.

Specifically, the cylindrical battery liquid injection apparatus 20 includes an apparatus main body 21 and the cap finisher 10. The apparatus main body 21 is provided with a track 211 and a control system (not labeled in the drawing), the cap sorting device 10 includes a guide rail seat 16, the guide rail seat 16 is mounted on the track 211, and the control system is electrically connected with the first driving mechanism 121 to control the first driving mechanism 121 to drive the first magnet 1221 to move along a first track (PQ) and adsorb the cap 102 to lift the non-injected cylindrical battery 100, so that the relative positions of the cap 102 and the battery case 101 of the non-injected cylindrical battery 100 are adjusted.

Referring to fig. 12, 4, and 5-11, in some embodiments, the cap collating device 10 of the cylindrical battery filling apparatus 20 further includes at least one set of positioning assemblies 13, at least one set of engaging assemblies 14, and a lifting assembly 15. Each set of positioning components 13 includes a second driving mechanism 131 and a positioning leaning seat 132, the second driving mechanism 131 is electrically connected with the control system, the second driving mechanism 131 drives the positioning leaning seat 132 to move along a second track (RS) to position the non-injected cylindrical battery 100, the positioning leaning seat 132 is provided with an avoidance hollow portion 1321 and a limiting groove 1322, the avoidance hollow portion 1321 penetrates through the limiting groove 1322 from the side wall of the positioning leaning seat 132, and the central axis of the limiting groove 1322 is parallel to the first track (PQ). Each set of engaging components 14 includes a third driving mechanism 141 and an engaging mechanism 142, the third driving mechanism 141 is electrically connected to the control system, and the engaging mechanism 142 is driven by the third driving mechanism 141 to move along a track parallel to the second track (RS) and is inserted into the limiting groove 1322 by the avoiding hollow portion 1321 so as to clamp the non-injected cylindrical battery 100. The lifting assembly 15 is electrically connected with the control system, and the lifting assembly 15 drives the cap arranging assembly 12, the positioning assembly 13 and the suction assembly 14 to move along a track parallel to the first track (PQ).

In order to more clearly illustrate the technical solution of the cap trimming device 10 provided in the embodiment of the present invention, the following explanation is made on the basic working process of the cylindrical battery liquid injection device 20 provided in the embodiment of the present invention in trimming the caps 102 of the non-injected cylindrical battery 100 by referring to fig. 11, 12 and 13 to 17:

(1) The non-filled cylindrical batteries 100 are placed in rows at the respective stations 22 of the cylindrical battery filling apparatus 20.

In step (1), referring to fig. 11, 12, 13 and 16, all the non-injected cylindrical batteries 100 are placed in the tray 200, the tray 200 is provided with a plurality of rows of receiving grooves (not labeled in the drawing), each receiving groove is placed with one non-injected cylindrical battery 100, so that the non-injected cylindrical batteries 100 in each row are placed at intervals in rows, each row of non-injected cylindrical batteries 100 corresponds to the first magnet 1221 of the cap arranging device 10, in all the non-injected cylindrical batteries 100 in the same row, the cap 102 has a first surface 1021 welded with the tab 103, the first surface 1021 of all the caps 102 faces one side of the base 11, when all the non-injected cylindrical batteries 100 in the same row are being placed on the tray 200, each battery case 101 has a central axis, and the central axes of all the battery cases 101 in the same row are coplanar or approximately coplanar, for example, because of unavoidable engineering errors or placement is difficult to be completely consistent, the central axes of some battery cases 101 can be in a plane with the central axes of other battery cases, and in other battery cases have small errors, when the central axes of all the battery cases 101 in the same row of the battery cases are placed at an angle of the same plane, namely, when the cylindrical surface of all the battery cases 101 in the same row of non-injected cylindrical cases can be arranged at an angle of 0 ° with respect to the reference plane (i.e. the cylindrical surface of the non-injected cylindrical case 101) of the cylindrical case is placed at an angle of 0 degree) when the cylindrical surface of the non-injected cylindrical battery case 100 is placed at an angle of 0 degree.

(2) The control system controls the first driving mechanism 121 to drive the first magnets 1221 arranged in rows to move towards the non-injected cylindrical batteries 100 arranged in rows, the first magnets 1221 attract the caps 102 to lift the non-injected cylindrical batteries 100, and meanwhile, the lifting assembly 15 is started to perform lifting motion, so that the base 11, the cap arranging assembly 12, the positioning assembly 13, the attracting assembly 14 and the non-injected cylindrical batteries 100 attracted by the first magnets 1221 are driven to perform lifting motion.

In step (2), referring to the process from a to c of fig. 13, each first magnet 1221 holds a cap 102 correspondingly to lift the non-filled cylindrical battery 100, the distance between the rail 211 and the station 22 is kept at H, the distance between the station 22 and the cap arranging device 10 is H1, each non-filled cylindrical battery 100 is in a state of not being lifted or slightly lifted and the battery case 101 is not separated from the accommodating groove, after the first magnet 1221 holds the cap 102, the lifting assembly 15 drives the base 11, the cap arranging assembly 12, the positioning assembly 13 and the engaging assembly 14 to perform lifting movement, the distance between the station 22 and the cap arranging device 10 becomes H2, and H2 > H1, the battery case 101 still does not leave the accommodating groove, the relative positions of the cap 102 and the battery case 101 are adjusted, and the caps 102 are all adjusted to have the same spatial orientation in the same row of non-filled cylindrical batteries 100, as shown in fig. 17.

(3) The control system controls the second driving mechanism 131 to drive the positioning leaning seat 132 to move towards the direction where the lifted non-injected cylindrical batteries 100 are located, so that each non-injected cylindrical battery 100 correspondingly enters into one limiting groove 1322, the lifting assembly 15 drives the base 11, the cap arranging assembly 12, the positioning assembly 13, the suction assembly 14 and the lifted non-injected cylindrical batteries 100 to do descending movement, the distance between the station 22 and the cap arranging device 10 becomes h1, the non-injected cylindrical batteries 100 fall back to the tray 200, and all caps 102 have the spatial orientation shown in fig. 17.

In step (3), referring to fig. 13, 14, 2 and 7, the distance between the station 22 and the cap arranging device 10 is kept at h2, the positioning seat 132 is abutted against the surface of the battery case 101, so that each battery case 101 enters the limiting groove 1322, then the lifting assembly 15 drives the base 11, the cap arranging assembly 12, the positioning assembly 13, the engaging assembly 14 and the lifted cylindrical battery 100 to move downward, the distance between the station 22 and the cap arranging device 10 becomes h1, the cylindrical battery 100 falls back to the tray 200, the cylindrical battery 100 is supported by the tray 200, and the positioning assembly 13 positions the cylindrical battery 100.

(4) The control system controls the third driving mechanism 141 to drive the suction mechanism 142 to insert into the avoidance hollow 1321 and to clamp the cylindrical battery 100 without liquid injection in the limiting groove 1322.

In step (4), referring to fig. 14, the clamping component 1422 of the actuating mechanism 142 clamps the cylindrical battery 100 without liquid injection, specifically, the second magnet 14222 clamps the battery case 101, and the annular positioning protrusion of the clamping groove plate 14223 is clamped to the beam waist of the cylindrical battery 100 without liquid injection, so as to realize clamping fixation of the cylindrical battery 100 without liquid injection.

(5) The control system controls the first drive mechanism 121 to drive the first magnet 1221 to move away from the non-flooded cylindrical battery 100 to disengage from the cap 102.

In step (5), referring to fig. 15, since the clamping assembly 1422 has clamped the non-injected cylindrical battery 100, the non-injected cylindrical battery 100 is fixed, and the non-injected cylindrical battery 100 is not lifted out of the tray 200 when the first magnet 1221 is separated from the cap 102.

(6) The control system controls the lifting assembly 15 to drive the base 11, the cap arranging assembly 12, the positioning assembly 13 and the suction assembly 14 to do lifting motion so as to enable the cylindrical battery 100 without liquid injection to leave the tray 200; the control system controls the cap collating device 10 to move on the rail 211 to transfer the row of non-filled cylindrical batteries 100 completed with the cap 102 collation to the next process of the cylindrical battery filling apparatus 20.

In step (6), please continue to refer to fig. 15 and 13, the distance between the station 22 and the cap sorting device 10 becomes h3, and h3 > h2, so that the bottom of the non-injected cylindrical battery 100 after cap sorting leaves the accommodating groove of the tray 200, and the cap sorting device 10 is transported to the next process along the track 211 according to the forward-put state under the suction of the suction component 1422.

The above steps (1) to (6) are only one working procedure of the cylindrical battery filling apparatus 20 of the present invention in the cap trimming stage, but are not limited to the process of trimming the caps 102 exactly according to the steps (1) to (6). If the first magnet 1221 is an electromagnet, the following method is only needed to adjust the step (2) after the step (1) is finished:

the control system controls the first driving mechanism 121 to drive the first magnets 1221 arranged in rows to move towards the non-injected cylindrical batteries 100 arranged in rows, and energizes the first magnets 1221, so that the first magnets 1221 attract the caps 102 to lift the non-injected cylindrical batteries 100, and simultaneously starts the lifting assembly 15 to perform lifting motion, so that the base 11 and the cap arranging assembly 12 are driven to perform lifting motion, the relative positions of the caps 102 and the battery case 101 are adjusted, and in the non-injected cylindrical batteries 100 in the same row, the caps 102 are adjusted to be at the same angle with the reference plane (OO') where the central axis of the battery case 101 is located when the battery case 101 is lifted, then the lifting assembly 15 is started to perform descending motion, the base 11 and the cap arranging assembly 12 are driven to perform descending motion, so that the non-injected cylindrical batteries 100 fall back to the tray 200, the energizing of the first magnets 1221 is stopped, and the tray 200 is transferred, and the non-injected cylindrical batteries 100 carried by the tray 200 through the cap 102 are transferred to the next process. Thus, steps (3) to (6) are not required. Of course, this adjustment is only one way, and the adjustment from step (1) to step (6) can also be performed in combination with the structure of the cap arranging device 10, which is all the idea of the present invention.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any equivalent modifications or substitutions will be apparent to those skilled in the art within the scope of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. The cap sorting device is characterized by being used for sorting caps of cylindrical batteries without liquid injection;

when the caps of all the non-injected cylindrical batteries are inclined to the same side as the first magnets, the first driving mechanism drives all the first magnets to approach the non-injected cylindrical batteries to attract the caps and lift the non-injected cylindrical batteries, so that the relative positions of the caps and the battery cases of each of the non-injected cylindrical batteries are adjusted, and all the caps are adjusted to have the same spatial orientation.

2. The cap collating device of claim 1, wherein the cap collating device further comprises:

3. The cap organizing device of claim 2, wherein the organizing mechanism further comprises a first holder, the first magnet being fixed in the first holder to magnetically attract one of the caps.

4. The cap collating device according to claim 2, wherein the cap collating device is configured to collate caps of the non-filled cylindrical batteries in a state in which the respective central axes of the plurality of non-filled cylindrical batteries arranged in a row form a plane together, the first surface faces the base, and an angle formed between the first surface and the plane is 0 ° to 80 °.

5. The cap collating device of claim 2, wherein the cap collating device further includes:

6. The cap collating device according to claim 5, wherein the engaging mechanism includes a second fixing base and at least one set of the card-sucking members, one end of each set of the card-sucking members is connected to the second fixing base, the other end is used for card-sucking and fixing one of the non-liquid-injected cylindrical batteries, and each set of the card-sucking members corresponds to one of the first magnets.

7. The cap arranging device according to claim 6, wherein the clamping assembly comprises a magnet clamping plate, a second magnet and a clamping groove plate, wherein one ends of the magnet clamping plate and the clamping groove plate are respectively arranged on the second fixing seat, and the second magnet is arranged at the other end of the magnet clamping plate so as to magnetically attract the cylindrical battery without filling liquid; the other end part of the clamping groove plate is provided with an annular positioning protrusion, and the annular positioning protrusion is used for being clamped and inserted into the beam waist of the cylindrical battery without liquid injection.

8. The cap grooming device of claim 5, wherein the base comprises a bottom plate, a fixed plate, and a connecting plate, the bottom plate is perpendicular to the first track and parallel to the second track, the connecting plate connects the bottom plate and the fixed plate, the first driving mechanism is mounted on the fixed plate, and the second driving mechanism and the third driving mechanism are mounted on the upper and lower surfaces of the bottom plate, respectively.

9. The cap collating device of claim 5, further comprising a lifting assembly connected to the base for driving the base to carry the cap collating assembly, the positioning assembly and the engaging assembly along a trajectory parallel to the first trajectory.

10. The cap collating device of claim 9, wherein the cap collating device further includes a rail seat, the portion of the lifting assembly extending through the rail seat and being connected to the base, the rail seat being adapted to connect the cap collating device with a rail of a cylindrical battery liquid injection apparatus for movement of the cap collating device on the rail.

11. The cap grooming device of claim 10, further comprising a sensing assembly for sensing a lifting process of the lifting assembly, the sensing assembly being coupled to the rail mount.

12. A cylindrical battery fluid injection apparatus, comprising:

the cap collating device according to any one of claims 1-11, comprising a guide rail seat;

the guide rail seat is arranged on the track;

13. The cylindrical battery filler apparatus of claim 12, wherein the cap collating device further comprises: