CN110994005A

CN110994005A - Nail pulling system and nail pulling method

Info

Publication number: CN110994005A
Application number: CN201911353503.6A
Authority: CN
Inventors: 邱立国; 钱志祥; 陈忠旭
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-04-10

Abstract

The invention discloses a nail pulling system, comprising: the nail pulling device comprises a clamping jaw for clamping the rubber nail, a second driving device and a sealing part, the second driving device is in driving connection with the clamping jaw and is used for driving the clamping jaw to clamp the rubber nail, the sealing part is provided with an inner cavity, the clamping jaw is positioned in the inner cavity, the inner cavity is connected with an air extracting device, an opening communicated with the inner cavity is formed in the sealing part, and the sealing part can be abutted against the battery body to enable the opening to surround a liquid injection port of the battery body; the nail pulling rack is connected with the second driving device; the nail pulling system can effectively reduce the splashing of electrolyte during nail pulling; the invention also discloses a nail pulling method.

Description

Nail pulling system and nail pulling method

Technical Field

The invention relates to the field of battery production, in particular to a nail pulling system and a nail pulling method.

Background

In a production line at the rear end of the hard-shell power battery, the battery needs to be subjected to a chemical composition and capacity grading process to carry out charge and discharge activation and sorting on the battery; before and after the formation process, the battery needs to undergo the processes of nail pulling, temperature reduction, negative pressure pumping and the like.

In current lithium cell nail pulling process, because the battery temperature is higher, the molecule of interior electrolyte is in very active state, directly pulls out the nail at this moment and can lead to the direct blowout of electrolyte, pollutes the battery and annotates the liquid mouth, and spun electrolyte waste gas can volatilize in the air, causes air pollution, harm health and environment.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a nail pulling system and a nail pulling method, which can effectively reduce splashing of electrolyte during nail pulling.

The nail pulling system of one aspect of the invention comprises: the nail pulling device comprises a clamping jaw for clamping the glue nail, a second driving device and a sealing part, the second driving device is in driving connection with the clamping jaw and is used for driving the clamping jaw to clamp, the sealing part is provided with an inner cavity, the clamping jaw is positioned in the inner cavity, the inner cavity is connected with an air extracting device, an opening communicated with the inner cavity is formed in the sealing part, and the sealing part can be abutted against the battery body to enable the opening to surround a liquid injection port of the battery body; and the nail pulling rack is connected with the second driving device.

The nail pulling method in another aspect of the invention comprises the following steps: plugging, controlling the transportation device and/or the nail pulling system to enable the sealing part to be abutted against the battery body and the opening on the sealing part to surround the liquid injection port of the battery body; a nail clamping step of controlling a second driving device to enable the clamping jaw to clamp the glue nail; and a nail pulling step of controlling the clamping jaw to ascend relative to the battery body so that the glue nail clamped by the clamping jaw is pulled out.

When the nail pulling system is applied, the opening can be abutted against the battery body firstly when the nail is pulled, so that the liquid injection port filled with the glue nail is sealed, then the second driving device is controlled, the driving clamping jaw clamps the glue nail on the liquid injection port, then the nail is pulled, when the glue nail is pulled out, electrolyte sprayed from the liquid injection port is blocked by the inner cavity, and the part splashed towards the periphery is greatly reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an isometric view of a battery production apparatus according to an embodiment of the present invention;

FIG. 2 is an isometric view of a battery production apparatus according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 4 is an isometric view of a nail extraction system in accordance with an embodiment of the present invention;

FIG. 5 is a side view of a nail pulling system according to an embodiment of the present invention;

FIG. 6 is a schematic view of a nail pulling apparatus according to an embodiment of the present invention;

FIG. 7 is a front view of a nail pulling device according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;

FIG. 9 is a side view of a detection system in an embodiment of the present invention;

FIG. 10 is an isometric view of a detection system in an embodiment of the invention;

FIG. 11 is a side view of a staple receiving device in an embodiment of the present invention;

FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;

FIG. 13 is an isometric view of a transporter in an embodiment of the invention;

fig. 14 is a top view of a transport device in an embodiment of the invention.

The figures contain the following reference numerals:

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present embodiment, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present embodiment, a plurality of means is one or more, a plurality of means is two or more, and greater than, less than, more than, etc. are understood as excluding the present number, and greater than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present embodiment, unless otherwise explicitly limited, terms such as setting, installing, connecting and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solutions.

Referring to fig. 1-3, the present embodiment provides a battery production apparatus, which includes a nail pulling system 130, a battery cooling system 200, and a detection device 320.

As shown in fig. 2 and 3, the height in the present embodiment refers to the distance in the up-down direction in fig. 2 or 3, and the horizontal plane in the present embodiment refers to the plane in the front-back direction and the left-right direction in fig. 2 and 3.

In order to transport the battery body 420 in each process, a transport device 410 may be further provided in the battery production apparatus.

As shown in fig. 13 and 14, the transportation device 410 is provided with an accommodating portion 411 for accommodating the battery body 420, and in the battery production process, the battery body 420 can be placed into the accommodating portion 411, so that the liquid injection port 421 of the battery body 420 faces upward, and in the production processes of battery nail pulling, temperature reduction, detection and the like, the accommodating portion 411 can be moved integrally, thereby realizing the switching of the battery body 420 in different processes.

Among them, in order to simultaneously process a plurality of battery bodies 420 in a single process, a plurality of receiving grooves may be provided in the transport device 410, for example, a plurality of rows of receiving grooves may be provided in the transport device 410 as shown in fig. 14.

As shown in fig. 4 and 5, the nail pulling system 130 is provided with a nail pulling device 132.

The nail pulling device 132 according to an aspect of the present embodiment, as shown in fig. 6-8, comprises: a clamping jaw 1322 for clamping the glue nail 422; the second driving device 1327 is in driving connection with the clamping jaw 1322 and is used for driving the clamping jaw 1322 to clamp; a sealing portion 1323 having an interior cavity with jaws 1322 positioned therein; the sealing portion 1323 is provided with an opening communicating with the internal cavity, and the opening can abut against the battery body 420 so that the opening surrounds the liquid inlet 421 of the battery body 420.

By applying the nail pulling device 132 of the embodiment, when pulling nails, the opening can be abutted on the battery body 420, so that the injection port 421 filled with the glue nail 422 is sealed, then the second driving device 1327 is controlled, the driving clamping jaw 1322 clamps the glue nail 422 on the injection port 421, and then nail pulling is performed, when the glue nail 422 is pulled out, the electrolyte sprayed from the injection port 421 is blocked by the inner cavity, and the part splashed around is greatly reduced.

Wherein, the opening can be abutted against the battery body 420 in various ways, for example, the movement of the nail pulling device 132 is controlled so that the opening moves towards the battery body 420 and finally abuts against the battery body 420; the battery body 420 may also be controlled to move such that the battery body 420 abuts against the opening; of course, the relative movement of the nail pulling device 132 and the battery body 420 can also be controlled simultaneously, so that the opening and the battery body 420 abut against each other.

It is understood that the manner of controlling the movement of the nail pulling device 132 includes manually operating the nail pulling device 132 to manually abut the opening onto the battery body 420; also included is manipulating the nail pulling device 132 by a driving apparatus such that the opening abuts the battery body 420, for example as shown in fig. 3, 4, with the nail pulling device 132 being controlled in movement by the nail pulling housing 131.

Preferably, in the manner of controlling the movement of the battery, the battery can be placed in the receiving slot of the transportation device 410, and then the transportation device 410 is controlled to move towards the nail pulling device 132, wherein the transportation device 410 can move towards the nail pulling device 132 manually, or the transportation device 410 can be driven to ascend by a driving component such as an air cylinder, a linear motor and the like so that the battery body 420 abuts against the opening.

In order to control the operation of the whole battery production equipment conveniently and reduce the types of power parts in the equipment, the second driving device 1327 is an air cylinder, and the clamping jaw 1322 and the second driving device 1327 form a pneumatic clamping jaw; electric clamping jaws or hydraulic clamping jaws can also be adopted according to actual needs.

As shown in fig. 7 and 8, the sealing portion 1323 includes a first sealing section 13231 and a second sealing section 13232, the first sealing section 13231 is provided with an opening, the second sealing section 13232 connects the first sealing section 13231 and a cylinder on the second driving device 1327, the first sealing section 13231 and the second sealing section 13232 together define an inner cavity, and the first sealing section 13231 is connected with an air suction device; the sealing section is divided into two sections, so that the sealing section can be conveniently installed; meanwhile, the air extractor can timely extract the electrolyte and electrolyte volatile matters sprayed from the injection port 421 after the nail pulling process, thereby further reducing the environmental pollution.

As shown in fig. 8, the nail pulling device 132 further comprises a first cylinder 1321, a cylinder of the first cylinder 1321 is fixedly connected with the first sealing section 13231, a piston of the first cylinder 1321 is connected with a cylinder of the second driving device 1327, and the second sealing section 13232 is made of a flexible material; when the opening abuts against the battery body 420, the first cylinder 1321 drives the second driving device 1327 to press down together with the clamping jaw 1322, and the second sealing section 13232 is made of a flexible material, so that the sealing performance of the inner cavity can be still maintained after deformation; then the second driving device 1327 drives the clamping jaw 1322 to clamp the glue nail 422, and then the first cylinder 1321 drives the clamping jaw 1322 to ascend, so that the glue nail 422 is pulled out, the opening still abuts against the battery body 420 at the moment, the electrolyte and the volatile gas sprayed from the liquid injection port 421 are limited in the inner cavity, and are timely pumped away through the air exhaust device, and the leakage of the electrolyte and the volatile gas is reduced to the maximum extent.

In order to prevent the glue nail 422 from slipping after being clamped by the clamping jaws 1322 and remaining on the liquid injection port 421 to affect the subsequent production, a detector 1325 may be provided on the first sealing section 13231; when the first cylinder 1321 drives the clamping jaw 1322 clamping the rubber nail 422 to ascend, the detector 1325 detects whether the clamping jaw 1322 clamps the rubber nail 422, and if it is detected that the nail pulling operation is unsuccessful, the nail pulling device 132 can be controlled to perform a nail pulling operation again.

Wherein the detector 1325 can be configured as a correlation fiber for detecting the glue nail 422 by an optical signal; the glue nails 422 may also be detected by providing mechanical contacts or the like.

Preferably, detector 1325 may be positioned at the same height as the highest position of jaw 1322 relative to first seal segment 13231; wherein the highest position of clamping jaw 1322 relative to first seal segment 13231 is the height of clamping jaw 1322 when piston of first cylinder 1321 is retracted to the maximum position; when the clamping jaw 1322 is driven by the first cylinder to rise, if the glue nail 422 is not detected by the detector 1325, it can be determined that the nail pulling is successful.

In order to fix the second sealing section 13232 conveniently, the second driving device 1327 and the first sealing section 13231 are both provided with a pressing portion 1324 for fixing the second sealing section 13232, and two ends of the second sealing section 13232 are respectively fixed on the cylinder body and the first driving portion of the second driving device 1327 serving as an air cylinder by the pressing portion 1324, wherein the second driving device 1327 may be made of a plastic material or a soft material such as rubber.

In order to enhance the friction between the clamping jaw 1322 and the rubber nail 422 and increase the nail pulling success rate, the clamping jaw 1322 is provided with a protrusion for abutting against the rubber nail 422.

In order to minimize the impact when the nail pulling device 132 abuts against the battery body 420 when the third frame 1313 drives the nail pulling device 132 to descend, the second driving device 1327 is connected with a support, a buffer device 1326 is arranged on the support, and the buffer device 1326 is connected with the third frame 1313; the buffer 1326 may be implemented by an elastic member, a start piston, or an oil cylinder.

As shown in fig. 5, the nail pulling system 130 is further provided with a nail receiving device 133 for collecting the pulled out glue nails 422.

As shown in fig. 11 and 12, the staple attaching apparatus 133 according to the second aspect of the present embodiment includes: a nail receiving box 1333 having an inner space for collecting the glue nails 422, an opening communicating with the inner space being provided above the nail receiving box 1333; and a nail scraping plate 1331 disposed at one side of the opening for blocking the movement of the glue nails 422 so that the glue nails 422 can fall into the nail receiving box 1333.

By applying the nail receiving device 133 of the present embodiment, when pulling the nail, the nail pulling device 132 can be controlled to transport the pulled out glue nail 422 to the upper side of the nail receiving box 1333, and then the nail pulling device 132 is controlled to move towards the reverse direction of the scraping plate, so that the scraping plate abuts against the glue nail 422, and due to the abutting action of the scraping plate, the glue nail 422 adhered to the clamping jaw 1322 can fall off from the clamping jaw 1322 and fall into the nail receiving box 1333.

The nail scraping plate 1331 may be disposed around the opening, and when the clamping jaw 1322 clamps the rubber nail 422 and moves to the position above the nail receiving device 133, the clamping jaw may move in any direction in the horizontal plane, and the rubber nail 422 can be scraped off through the top scraping plate.

As shown in fig. 5, a receiving plate 1332 is covered above the nail receiving box 1333, an opening is provided on the receiving plate 1332, and the nail scraping plate 1331 is provided on the receiving plate 1332.

In the nail pulling system 130, after the nail pulling step of the nail pulling device 132, the rubber nails 422 can be thrown into the nail receiving device 133 for collection, wherein the rubber nails 422 can be thrown into the nail receiving device 133 by holding the nail pulling device 132 by hand, or the nail pulling device 132 can be driven by the nail pulling rack 131 to throw the rubber nails 422 into the nail receiving device 133; when the glue nail 422 is thrown into the nail receiving device 133 by a manual method, the nail pulling frame 131 may not be provided.

As shown in fig. 11 and 12, a receiving plate 1332 covers the staple receiving box 1333, and the receiving plate 1332 is connected to the first base 134 through a pillar, so as to effectively prevent the staple receiving box 1333 from shifting after being impacted by the staple pulling device 132.

Further, in order to enhance the supporting effect, a plurality of pillars are provided around the receiving plate 1332.

As shown in fig. 11 and 12, in order to reduce the space occupied by the nail receiving device 133 in the nail pulling system 130, the nail receiving box 1333 is located above the first base 134, and the storage box 1334 is located below the first base 134, as shown in fig. 1 to 3, when the storage box 1334 is located below the first base 134, the storage box 1334 can be disposed in the space where the battery cooling system 200 is located, and the space of the entire battery production facility can be effectively utilized.

The nail pulling system 130 according to the third aspect of the present embodiment includes: the nail pulling device 132 comprises a clamping jaw 1322 for clamping the rubber nail 422, a second driving device 1327 and a sealing part 1323, the second driving device 1327 is in driving connection with the clamping jaw 1322 and is used for driving the clamping jaw 1322 to clamp, the sealing part 1323 is provided with an inner cavity, the clamping jaw 1322 is positioned in the inner cavity, the inner cavity is connected with an air extracting device, an opening communicated with the inner cavity is arranged on the sealing part 1323, and the sealing part 1323 can be abutted against the battery body 420 so that the opening surrounds the liquid injection port 421 of the battery body 420; the nail pulling frame 131 is connected with the second driving device 1327.

By applying the nail pulling system 130 of the embodiment, when pulling nails, the opening may be abutted to the battery body 420 first, so that the injection port 421 with the glue nail 422 is sealed, then the second driving device 1327 is controlled, the driving clamping jaw 1322 clamps the glue nail 422 on the injection port 421, and then nail pulling is performed, when the glue nail 422 is pulled out, the electrolyte sprayed from the injection port 421 is blocked by the inner cavity, and the part splashed towards the periphery is greatly reduced; further, to pull out nail device 132 setting on pulling out nail frame 131, no matter be through manual manipulation pull out nail device 132 slide on pulling out nail frame 131, still through setting up the drive arrangement drive on pulling out nail frame 131, straightness that hangs down when can guarantee opening butt battery body 420 reduces the straightness that hangs down that brings when manually holding and pulling out nail device 132 and is difficult to guarantee, the insufficient problem of butt.

Specifically, as shown in fig. 4 and 5, the nail pulling frame 131 includes: a first frame 1311; a second frame 1312 slidably coupled to the first frame 1311; a third frame 1313 slidably coupled to the second frame 1312; the nail pulling device 132 is connected with the third frame 1313 in a sliding mode; the arrangement of the first support, the second support and the third support can ensure that the nail pulling device 132 can have 3 moving directions in the space.

In order to achieve an automatic control of the position of the nail pulling device 132, a driving system may be provided on the nail pulling frame 131, by which the movement of the nail pulling device 132 in three directions is controlled.

As shown in fig. 4, the driving device may include a motor, an air cylinder or a hydraulic cylinder, etc. disposed on the first frame 1311 for driving the second frame 1312 to move, or may include a motor, an air cylinder or a hydraulic cylinder, etc. disposed on the second frame 1312 for driving the third frame 1313 to move.

For controlling the ascending and descending of the driving device, the driving device may further include a lifting cylinder disposed on the third frame 1313 for driving the nail pulling device 132 to ascend and descend, and a piston of the lifting cylinder is connected to the nail pulling device 132 for driving the nail pulling device 132 to ascend or descend.

In order to reduce the impact of the nail pulling device 132 when it is driven by the lifting cylinder to abut against the battery body 420, the piston of the lifting cylinder and the cylinder of the first cylinder 1321 of the nail pulling device 132 may be connected by a buffer 1326.

Specifically, the nail pulling frame 131 is arranged on the first base 134, and the nail receiving device 133 is arranged through the first base 134; wherein, connect the nail box 1333 to set up above first base 134, the receiver 1334 sets up below first base 134, as shown in fig. 2, set up receiver 1334 below first base 134, also set up receiver 1334 in the region of battery cooling system 200, effectively reduced the occupation space of connecing nail device 133 in nail pulling system 130.

According to the nail pulling method of the fourth aspect of the present embodiment, the above nail pulling system 130 is used to pull out the rubber nails 422 at the liquid injection port 421, which includes the following steps:

a sealing step of controlling the transportation device 410 and/or the nail pulling system 130 so that the sealing portion 1323 abuts against the battery body 420 and the opening of the sealing portion 1323 surrounds the liquid injection port 421 of the battery body 420;

a nail clamping step of controlling the second driving device 1327 to enable the clamping jaws 1322 to clamp the rubber nails 422;

the nail pulling step controls the clamping jaws 1322 to ascend relative to the battery body 420, so that the adhesive nails 422 clamped by the clamping jaws 1322 are pulled out.

The abutting of the sealing portion 1323 with the battery body 420 can be achieved in various ways, and the sealing portion 1323 can be abutted with the battery body 420 by controlling the nail pulling system 130; the battery body 420 can also be brought into abutment with the sealing portion 1323 by lifting the transportation device 410 such that the battery body 420 moves toward the nail pulling device 132; the relative movement of the nail pulling device 132 and the transporter 410 can also be controlled simultaneously.

Here, the nail pulling system 130 may be controlled so that the sealing portion 1323 abuts on the battery body 420 by manually adjusting the position of the nail pulling device 132 on the nail pulling frame 131, or the nail pulling device 132 may be driven to move by controlling the driving system on the nail pulling frame 131.

Specifically, the nail pulling step comprises: controlling the first cylinder 1321 to lift the second driving device 1327 and the clamping jaw 1322 together to pull out the glue nail 422; here, in order to increase the friction between the jaws 1322 and the glue pins 422, protrusions may be added to the jaws 1322.

In order to reduce nail pulling failure, the battery body 420 with the residual rubber nails 422 still flows into the next process, which affects subsequent production, and after the rubber nails 422 are pulled out, the nail pulling method further comprises a nail pulling detection step, and the nail pulling detection step comprises: after the rubber nail 422 is removed, the detection device 320 is controlled to detect a part of the inner cavity defined by the first sealing section 13231, and when the rubber nail 422 is detected, the nail clamping step and the nail removing step are repeated.

The detection device 320 may employ a correlation fiber, or may employ a contact switch or the like to detect whether the clamping jaw 1322 clamped and lifted is successfully clamped to the glue nail 422.

Because electrolyte still remains on the rubber nail 422 pulled out from the liquid injection port 421 and needs to be properly collected, the nail pulling method further comprises a step of collecting the rubber nail 422, and the step of collecting the rubber nail 422 comprises the following steps: after the plastic nail 422 is removed, the driving system is controlled to move the nail removing device 132 to the position above the nail receiving device 133, and the second driving portion is controlled to separate the clamping jaws 1322, so that the removed plastic nail 422 falls into the nail receiving device 133.

Wherein, in order to prevent the glue nail 422 from sticking to the clamping jaw 1322 and being difficult to fall off by itself, the step of collecting the glue nail 422 may further include: after the second driving part is controlled to separate the clamping jaw 1322, the nail receiving device 133 is controlled to translate towards the nail scraping plate 1331, so that the glue nails 422 adhered to the clamping jaw 1322 abut against the nail scraping plate 1331, and the glue nails 422 can fall off from the clamping head and fall into the nail receiving box 1333 under the extrusion of the nail scraping plate 1331.

In order to timely collect the electrolyte and electrolyte volatile gas splashed in the nail pulling process, the nail pulling method further comprises a vacuumizing step, and the vacuumizing step comprises the following steps: after the sealing portion 1323 abuts on the battery body 420, the gas-extracting device is controlled to extract the gas and the liquid in the cavity.

In the nail pulling method of this embodiment, the time for performing the vacuum step may be reasonably arranged according to the field production requirement, and may be performed simultaneously with the nail clamping step or the nail pulling step, or may be performed before the nail clamping step, and the vacuum step may be performed only after the sealing portion 1323 abuts against the battery body 420.

As shown in fig. 9 and 10, the detecting device 320 according to the fifth aspect of the present embodiment includes: a plurality of negative pressure cups 322, each negative pressure cup 322 is provided with a suction nozzle which is used for abutting against the liquid injection port 421 of the battery body 420; the air extracting device is connected with the negative pressure cup 322 and is used for extracting air in the negative pressure cup 322; and a vacuum detecting device 320 connected to each negative pressure cup 322 for detecting the air pressure inside each negative pressure cup 322.

By using the detection device 320 of this embodiment, during detection, the plurality of negative pressure cups 322 are first controlled to respectively abut against the plurality of battery bodies 420, then the air extractor is controlled to extract air from the negative pressure cups 322, then the vacuum detection device 320 is controlled to detect the vacuum degree in the negative pressure cups 322, and when the vacuum degree in a certain negative pressure cup 322 is detected to be higher than a preset value, the battery body 420 corresponding to the negative pressure cup 322 can be determined to be unqualified, and the time for selecting unqualified batteries in the later period is effectively saved in the whole process.

The vacuum detecting device 320 may be a multi-channel vacuum detecting device, and may be connected to a plurality of negative pressure cups 322 simultaneously, or may be provided with a plurality of vacuum meters, and each negative pressure cup 322 is connected to one vacuum meter.

Wherein, the plurality of negative pressure cups 322 can be respectively abutted against the plurality of battery bodies 420 in various ways, for example, the plurality of negative pressure cups 322 are abutted against the battery bodies 420 at one time in a manual way; or a plurality of negative pressure cups 322 are fixed on the bracket, and the bracket is controlled to move towards the battery body 420; the plurality of negative pressure cups 322 may be fixedly disposed, the plurality of batteries may be mounted on the transporter 410, and the transporter 410 may be lifted up so that the plurality of battery bodies 420 are respectively abutted against each negative pressure cup 322.

As shown in fig. 10, in order to facilitate mounting of the plurality of negative pressure cups 322, the plurality of negative pressure cups 322 may be provided on the detection holder 321.

Further, in order to adjust the position of the negative pressure cup 322 conveniently, the detecting bracket 321 includes a translation bracket 3212, and the plurality of negative pressure cups 322 are all disposed on the translation bracket 3212; when the horizontal position of the negative pressure cup 322 needs to be adjusted to adapt to the liquid injection ports 421 at different positions on the battery body 420, the position of the translation bracket 3212 only needs to be adjusted.

As shown in fig. 10, in order to enable the plurality of negative pressure cups 322 to move in the horizontal direction and the up-down direction, the detection device 320 includes a second base 323, the detection bracket 321 includes a lifting bracket 3211 and a translation bracket 3212, the lifting bracket 3211 is slidably connected to the second base 323, and the translation bracket 3212 is slidably connected to the lifting bracket 3211.

In order to realize the automatic control of the position of the negative pressure cup 322, the detection device 320 further includes a driving system, and the driving system is used for driving the lifting bracket 3211 to lift relative to the second base 323 and/or driving the translation bracket 3212 to translate relative to the lifting bracket 3211.

The driving device may include an air cylinder, a linear motor, or a hydraulic cylinder, etc. for driving the lifting bracket 3211 to lift, or may include an air cylinder, a linear motor, or a hydraulic cylinder, etc. for driving the translating bracket 3212 to translate relative to the lifting bracket 3211.

As shown in fig. 10, the detection carriage 321 includes a plurality of translation carriages 3212; each translation bracket 3212 is provided with a plurality of negative pressure cups 322; wherein, a plurality of translation supports 3212 can be provided, a single negative pressure cup 322 can be provided on each translation support 3212, the number of translation supports 3212 can also be reduced, and a plurality of negative pressure cups 322 are provided on a single translation support 3212.

According to the sixth aspect of the present embodiment, a method for detecting whether the battery body 420 is qualified by using the detecting device 320 includes the following steps: a step of extracting gas, in which the plurality of negative pressure cups 322 are controlled so that suction nozzles on the plurality of negative pressure cups 322 abut against the liquid injection port 421 of the battery body 420, and then the gas extracting device is controlled to extract gas in the plurality of negative pressure cups 322; detecting the vacuum degree, controlling the vacuum detection device 320, and detecting the vacuum degree in each negative pressure cup 322; and judging whether the battery body is qualified, comparing the vacuum degree of each negative pressure cup 322 with a preset value, and judging that the battery body 420 corresponding to the negative pressure cup 322 is unqualified when the vacuum degree in a certain negative pressure cup 322 is higher than the preset value.

By applying the detection method of the embodiment, unqualified batteries can be directly selected after the negative pressure cup 322 vacuumizes the battery body 420, and the time for selecting unqualified batteries in the later period is effectively saved.

When the step of extracting gas is executed, the translation bracket 3212 and/or the lifting bracket 3211 may be controlled so that the suction nozzle abuts against the liquid injection port 421 of the battery body 420; the transportation device 410 may be controlled so that the pouring port 421 of the battery body 420 in the transportation device 410 abuts the suction nozzle.

The translation bracket 3212 and/or the lifting bracket 3211 are controlled, so that the position of the translation bracket 3212 and/or the lifting bracket 3211 can be manually adjusted, the suction nozzle on the negative pressure cup 322 abuts against the battery body 420, and the translation bracket 3212 and/or the lifting bracket 3211 can move by controlling the driving device, so that the suction nozzle on the negative pressure cup 322 abuts against the battery body 420.

Similarly, the transportation device 410 is controlled to make the suction nozzle abut against the battery body 420, and the transportation device 410 can be lifted to drive the battery body 420 to abut against the suction nozzle either by manually adjusting the position of the transportation device 410 or by operating the equipment for lifting and lowering the transportation device 410.

According to a seventh aspect of the present embodiment, the battery cooling system 200 includes: a second case 210 having a cavity therein for dissipating heat from the battery; a transportation device 410 disposed in the cavity for accommodating the battery body 420; a vent 220 provided on the second housing 210, communicating with the cavity; a first fan is provided at the ventilation opening 220 for supplying air to the cavity or exhausting air inside the cavity.

Use battery cooling system 200 of this embodiment, in battery production process, can prevent high temperature battery in battery cooling system 200 earlier, then the first fan of control rotates for air flow in battery cooling system 200, with hot-air exhaust vent 220 or send into the cavity with external cold air through vent 220, send into the nail puller with the battery after cooling down with the battery heat dissipation and pull out the nail again, the condition that electrolyte splashes easily when effectively having reduced high temperature battery and pulling out the nail.

The fan may be installed at a position corresponding to the vent 220 outside the second housing 210 for replacement as required, or may be installed at a position corresponding to the vent 220 inside the second housing 210.

As shown in fig. 1, in order to increase the ventilation amount in the inner cavity and enhance the cooling effect, a plurality of ventilation openings 220 may be provided on the second housing 210, and a first fan may be provided at each ventilation opening 220.

As shown in fig. 1 and 2, a cooling rack is arranged in the cavity, the transportation device 410 is arranged on the cooling rack, a travel switch 250 is arranged on the rack, and the travel switch 250 is electrically connected with the fan.

Wherein, can set up conveyer 410 as and can dismantle with the cooling frame and be connected, after the polylith battery heat dissipation in conveyer 410 finishes, only need pull down whole conveyer 410, then the conveyer 410 of renewal can carry out next battery cooling process.

Here, when the transportation device 410 is installed in the cooling rack, the travel switch 250 is triggered by the cooling rack, so that the fan is powered on to operate, and after the battery body 420 is cooled, the transportation device 410 is detached, the travel switch 250 is turned off, and the fan automatically stops rotating.

Specifically, the transportation device 410 can move up and down along the cooling rack under the driving of the driving mechanism, when the transportation device 410 moves to the installation position of the travel switch 250, the travel switch 250 is closed, and the fan is powered on; when the transporter 410 is transported to another location, the travel switch 250 is opened and the fan is de-energized.

As shown in fig. 2, a plurality of travel switches 250 may be disposed on the cooling rack along the vertical direction; a plurality of transport devices 410 can be loaded on the rack to cool the batteries, and the number of the battery bodies 420 which are cooled at a time is increased.

As shown in fig. 3, the battery cooling system 200 further includes a vent 220, a first end of the vent 220 is communicated with the cavity, and a second end of the vent 220 is communicated with the outside air; at this time, the air vent 220 and the fan can increase the air flow in the cavity, so that the heat of the battery body 420 is taken away as soon as possible, and the cooling efficiency is increased.

As shown in fig. 2 and 3, a grill 240 may be provided between the transporter 410 and the vent 220.

In order to further increase the convection efficiency, the first end and the ventilation opening 220 are oppositely arranged, and the relative arrangement here means that the first end and the ventilation opening 220 are arranged along the left and right direction ends or along the front and rear direction ends, and the bending in the air circulation path is less, and the air circulation efficiency is higher.

As shown in fig. 3, in order to further enhance the heat dissipation efficiency, the first end is connected to a ventilation box 230, and a second fan is disposed in the ventilation box 230.

The second fan may also be electrically connected to the travel switch 250, so that the second fan can maintain the same operation state as the first fan 3.

When the ventilation box 230 is attached to the first end, the grille 240 is positioned between the ventilation box 230 and the transportation device 410.

As shown in fig. 1 to 3, according to an eighth aspect of the present embodiment, a battery production apparatus includes: the nail pulling system 130 comprises a nail pulling rack 131 and a nail pulling device 132 arranged on the nail pulling rack 131, wherein the nail pulling device 132 is used for pulling out a rubber nail 422 on the battery body 420; the battery cooling system 200 is used for cooling the battery body 420; a detecting device 320 for detecting whether the battery body 420 after formation is qualified; the nail pulling system 130, the battery cooling system 200 and the detection device 320 are arranged in a stacked mode.

Use the battery production facility of this embodiment, when carrying out battery production, send into battery cooling system 200 with high temperature battery earlier and cool down, then send into the battery after the cooling top or the nail pulling system 130 of below and carry out the nail pulling operation, send into the battery after the nail pulling top or the detection device 320 of below and carry out the evacuation and detect, whole process only need with the battery transport from top to bottom can, effectively reduced the handling process of battery.

The nail pulling system 130, the battery cooling system 200 and the detection system 300 in the above embodiments may be selected as the nail pulling system 130, the battery cooling system 200 and the detection system 300, or the existing nail pulling system 130, the existing battery cooling system 200 or the existing detection system 300 in the prior art may be flexibly selected as required.

As shown in FIG. 1, the nail pulling system 130, the battery cooling system 200 and the detection device 320 are arranged in sequence from top to bottom.

The battery production equipment further comprises a conveying device 410, the nail pulling system 130, the battery cooling system 200 and the detection device 320 are all provided with channels for avoiding the conveying device 410, and the conveying device 410 can slide up and down in the channels; the sequence of the three processes of nail pulling, cooling and detection can be reasonably arranged according to the actual requirements of a production field, and the nail pulling method and/or the battery detection method are/is reasonably utilized; when one process is finished and the next process is required to be switched, the up-down position of the conveying device 410 is adjusted in the equipment, so that the conveying device 410 enters different positions, and the automation degree of the equipment is effectively improved;

in order to further improve the automation degree of the battery production equipment, a battery production equipment driver for driving the transportation device 410 to slide up and down in the channel; under the driving of the driver, the transportation device 410 not only can drive the battery transportation device 410 to switch between different processes, but also can enable the transportation device 410 to participate in the production of each process, for example, when the battery body 420 is subjected to a nail pulling process, the driver can drive the transportation device 410 to ascend, so that the battery body 420 on the transportation device 410 is abutted against the nail pulling device 132; when the battery body 420 is subjected to a detection process, the translation bracket 3212 can be controlled to move away from the avoiding transportation device 410, so that the transportation device 410 transports the battery body 420 to the position below the negative pressure cup 322, and then the detection bracket 321 and/or the driver are controlled, so that the battery body 420 on the transportation device 410 abuts against the negative pressure cup 322, and the detection process is completed; when the cooling process is performed, the transportation device 410 may be controlled to move to the position of the travel switch 250, so that the travel switch 250 is triggered, and the first fan and/or the second fan is powered on.

As shown in fig. 13, the driver may include a lifting device 412 disposed on the second base 323.

In order to simplify the control of the entire battery production apparatus, the driver for driving the transport device 410 to ascend and descend may be a cylinder; in the whole battery production equipment, a pneumatic system can be selected to drive each part to operate, and the control is effectively simplified.

As shown in fig. 1 and 4, the nail pulling system 130 includes a nail receiving device 133, and the nail receiving device 133 partially extends into the battery cooling system 200.

As shown in fig. 3, the battery cooling system 200 includes a vent 220, the vent 220 passing through the nail pulling system 130 and extending to the outside air.

In order to reduce the pollution of the external environment by the electrolyte splashed during the battery nail pulling process, the battery production equipment comprises a first shell 110, and the first shell 110 surrounds a nail pulling system 130.

As shown in fig. 1, in order to discharge the volatile gas generated by nail pulling in time and avoid environmental pollution, a first ventilation device 120 is disposed outside the first casing 110.

As shown in fig. 1-3, the battery production apparatus further includes a second housing 210 surrounding the battery cooling system 200 and a third housing 310 surrounding the detection device 320, wherein the first housing 110, the second housing 210 and the third housing 310 are integrally disposed to form a support for each apparatus inside the battery production apparatus.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A nail pulling system, comprising:

the nail pulling device (132) comprises a clamping jaw (1322) for clamping a rubber nail (422), a second driving device (1327) and a sealing part (1323), the second driving device (1327) is in driving connection with the clamping jaw (1322) and is used for driving the clamping jaw (1322) to clamp, the sealing part (1323) is provided with an inner cavity, the clamping jaw (1322) is located in the inner cavity, the inner cavity is connected with an air suction device, an opening communicated with the inner cavity is formed in the sealing part (1323), and the sealing part (1323) can abut against a battery body (420) to enable the opening to surround a liquid injection port (421) of the battery body (420);

and the nail pulling frame (131) is connected with the second driving device (1327).

2. The nail pulling system according to claim 1, wherein the nail pulling frame (131) comprises:

a first gantry (1311);

a second frame (1312) slidably coupled with the first frame (1311);

a third frame (1313) slidably coupled to the second frame (1312);

a nail pulling device (132) which is connected with the third frame (1313) in a sliding way.

3. The nail pulling system according to claim 1, further comprising a drive system provided on the nail pulling frame (131) for driving the nail pulling device (132) in motion.

4. The nail pulling system according to claim 1, further comprising a nail receiving device (133), wherein the nail receiving device (133) is connected with the nail pulling rack (131), and the nail receiving device (133) is used for collecting the nails (422) pulled out by the nail pulling device (132).

5. A nail pulling method is characterized by comprising the following steps:

a sealing step of controlling the transportation device (410) and/or the nail pulling system (130) so that a sealing part (1323) is abutted with the battery body (420) and an opening on the sealing part (1323) surrounds a liquid injection port (421) of the battery body (420);

a nail clamping step of controlling a second driving device (1327) to enable the clamping jaw (1322) to clamp the glue nail (422);

and a nail pulling step of controlling the clamping jaw (1322) to ascend relative to the battery body (420) so that the glue nail (422) clamped by the clamping jaw (1322) is pulled out.

6. The nail pulling method according to claim 5, wherein the nail pulling step comprises: controlling the first air cylinder (1321) to enable the second driving device (1327) and the clamping jaw (1322) to ascend together to pull out the glue nail (422).

7. The nail pulling method according to claim 6, further comprising the steps of:

and (3) nail pulling detection, after the rubber nail (422) is pulled out, controlling a detection device (320) to detect a partial inner cavity defined by the first sealing section (13231), and repeating the nail clamping step and the nail pulling step when the rubber nail (422) is detected.

8. The nail pulling method according to claim 5, wherein the blocking step comprises: controlling a driving system to enable the nail pulling device (132) to move above the battery body (420) to enable the opening to surround the liquid injection opening (421).

9. The nail pulling method according to claim 8, further comprising the steps of:

collecting the adhesive nails (422), after removing the adhesive nails (422), controlling a driving system to move the nail pulling device (132) above the nail receiving device (133), and controlling a second driving part to separate the clamping jaws (1322) so that the pulled adhesive nails (422) fall into the nail receiving device (133).

10. The nail pulling method according to claim 5, further comprising the steps of:

and after the sealing part (1323) is in contact with the battery body (420), vacuumizing, and controlling an air exhaust device to exhaust gas and liquid in the inner cavity.