A nail pulling system and method

Abstract

The application discloses a nail pulling system, which comprises a nail pulling device, a nail pulling frame and a second driving device, wherein the nail pulling device comprises a clamping jaw for clamping a glue nail, the second driving device is in driving connection with the clamping jaw and is used for driving the clamping jaw to clamp the glue nail, and the nail pulling device further comprises a sealing part with an inner cavity, wherein the clamping jaw is located in the inner cavity, the inner cavity is connected with an air extraction device, and the sealing part is provided with an opening in communication with the inner cavity, and the sealing part can abut against a battery body so that the opening surrounds a liquid injection port of the battery body.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing, and in particular to a nail removal system and method. Background Technology

[0002] In the production line of hard-shell power batteries, the batteries need to go through the formation and capacity testing process, and be charged, discharged, activated and sorted. Before and after the formation process, the batteries need to go through processes such as nail removal, cooling and negative pressure extraction.

[0003] In the existing lithium battery pin removal process, due to the high battery temperature, the molecules of the internal electrolyte are in a very active state. At this time, directly removing the pin will cause the electrolyte to spray out directly, contaminating the battery filling port. Furthermore, the sprayed electrolyte waste gas will evaporate into the air, causing air pollution and harming human health and the environment. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a nail removal system and method that can effectively reduce electrolyte splashing during nail removal.

[0005] According to one aspect of the present invention, a nail removal system includes: a nail removal device, which includes a jaw for clamping a nail, a second driving device, and a sealing part. The second driving device is drivenly connected to the jaw and is used to drive the jaw to clamp. The sealing part has an inner cavity, the jaw is located in the inner cavity, the inner cavity is connected to an air extraction device, and the sealing part is provided with an opening communicating with the inner cavity. The sealing part can abut against the battery body such that the opening surrounds the liquid injection port of the battery body; and a nail removal frame connected to the second driving device.

[0006] Another aspect of the present invention provides a nail removal method comprising the following steps: a sealing step, controlling a transport device and / or a nail removal system to bring the sealing part into contact with the battery body and the opening on the sealing part surrounding the liquid injection port of the battery body; a nail clamping step, controlling a second drive device to clamp the adhesive nail; and a nail removal step, controlling the clamp to rise relative to the battery body so that the adhesive nail clamped by the clamp is pulled out.

[0007] When using the nail-removing system of the present invention, the opening can be first placed against the battery body to seal the liquid injection port containing the glue nail. Then, the second driving device is controlled to drive the gripper to clamp the glue nail on the liquid injection port and then remove the nail. When the glue nail is removed, the electrolyte sprayed from the liquid injection port is blocked by the inner cavity, and the amount of it splashing to the surroundings is greatly reduced.

[0008] 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. Attached Figure Description

[0009] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0010] Figure 1 This is an axonometric view of a battery production apparatus according to an embodiment of the present invention;

[0011] Figure 2 This is an axonometric view of a battery production apparatus according to an embodiment of the present invention;

[0012] Figure 3 for Figure 2 A cross-sectional view along the CC direction;

[0013] Figure 4 This is an isometric view of the pin-removing system according to an embodiment of the present invention;

[0014] Figure 5 This is a side view of the nail-removing system according to an embodiment of the present invention;

[0015] Figure 6 This is a schematic diagram of the nail-pulling device according to an embodiment of the present invention;

[0016] Figure 7 This is a front view of the nail-removing device according to an embodiment of the present invention;

[0017] Figure 8 for Figure 7 Sectional view along the middle AA direction;

[0018] Figure 9 This is a side view of the detection system in an embodiment of the present invention;

[0019] Figure 10 This is an isometric view of the detection system in an embodiment of the present invention;

[0020] Figure 11 This is a side view of the pin-attaching device in an embodiment of the present invention;

[0021] Figure 12 for Figure 11 Sectional view along the DD direction;

[0022] Figure 13 This is an axonometric view of the transportation device in an embodiment of the present invention;

[0023] Figure 14 This is a top view of the transportation device in an embodiment of the present invention.

[0024] The above figures include the following reference numerals:

[0025]

[0026] Detailed Implementation

[0027] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this embodiment, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0029] In the description of this embodiment, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this embodiment, unless otherwise explicitly limited, terms such as "setup," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] Reference Figures 1-3 This embodiment provides a battery production equipment, including a nail removal system 130, a battery cooling system 200, and a testing device.

[0032] like Figure 2 , Figure 3 As shown, the height in this embodiment refers to... Figure 2 or Figure 3 The distance along the vertical direction, in this embodiment, refers to the horizontal plane. Figure 2 , Figure 3 The plane containing the front-back and left-right directions.

[0033] In order to facilitate the transportation of the battery body 420 in each process, a transport device 410 may also be installed in the battery production equipment.

[0034] like Figure 13 , Figure 14As shown, the transport device 410 is provided with a receiving part 411 for accommodating the battery body 420. During the battery production process, the battery body 420 can be placed into the receiving part 411 with the liquid injection port 421 of the battery body 420 facing upward. During the production processes such as battery nail removal, cooling and testing, the battery body 420 can be switched at different processes by moving the receiving part 411 as a whole.

[0035] In order to process multiple battery bodies 420 simultaneously in a single process, multiple receiving slots can be provided in the transport device 410, for example, multiple rows of receiving slots can be provided in the transport device 410. Figure 14 As shown.

[0036] like Figure 4 , Figure 5 As shown, the nail removal system 130 is equipped with a nail removal device 132.

[0037] like Figures 6-8 According to one aspect of this embodiment, the nail removal device 132 includes: a gripper 1322 for clamping the adhesive nail 422; a second driving device 1327, which is drivenly connected to the gripper 1322 for driving the gripper 1322 to clamp; a sealing part 1323 having an inner cavity in which the gripper 1322 is located; and an opening communicating with the inner cavity is provided on the sealing part 1323, the opening being able to abut against the battery body 420 such that the opening surrounds the liquid injection port 421 of the battery body 420.

[0038] When using the nail-removing device 132 of this embodiment, the opening can be first placed against the battery body 420 to seal the liquid injection port 421 containing the glue nail 422. Then, the second drive device 1327 is controlled to drive the gripper 1322 to clamp the glue nail 422 on the liquid injection port 421 and then the nail is removed. When the glue nail 422 is pulled out, the electrolyte sprayed from the liquid injection port 421 is blocked by the inner cavity, and the amount that splashes to the surroundings is greatly reduced.

[0039] In this way, the opening can be made to abut against the battery body 420 in a variety of ways. For example, the pin-pulling device 132 can be controlled to move so that the opening moves toward the battery body 420 and finally abuts against the battery body 420; the battery body 420 can also be controlled to move so that the battery body 420 abuts against the opening; of course, the pin-pulling device 132 and the battery body 420 can also be controlled to move relative to each other so that the opening and the battery body 420 abut against each other.

[0040] It is understandable that the methods of controlling the movement of the pin-removing device 132 include both manually operating the pin-removing device 132 to manually bring the opening abut against the battery body 420, and operating the pin-removing device 132 through a drive device to bring the opening abut against the battery body 420, for example... Figure 3 , Figure 4As shown, the movement of the nail-pulling device 132 is controlled by the nail-pulling frame 131.

[0041] Preferably, in the method of controlling the movement of the battery, the battery can be placed in the receiving slot of the transport device 410, and then the transport device 410 is controlled to move toward the nail pulling device 132. The transport device 410 can move toward the nail pulling device 132 manually, or it can be driven by a cylinder, linear motor or other drive components to raise the transport device 410 so that the battery body 420 abuts against the opening.

[0042] In order to facilitate the control of the entire battery production equipment and reduce the types of power components in the equipment, the second drive device 1327 is a cylinder. At this time, the gripper 1322 and the second drive device 1327 constitute a pneumatic gripper. Alternatively, an electric gripper or a hydraulic gripper can be used as needed.

[0043] like Figure 7 , Figure 8 As shown, the sealing part 1323 includes a first sealing section 13231 and a second sealing section 13232. The first sealing section 13231 is provided with an opening, and the second sealing section 13232 connects the first sealing section 13231 and the cylinder on the second driving device 1327. The first sealing section 13231 and the second sealing section 13232 together define the inner cavity. The first sealing section 13231 is connected to an air extraction device. Dividing the sealing section into two sections facilitates the installation of the sealing section. At the same time, the air extraction device can promptly extract the electrolyte and electrolyte volatiles sprayed from the injection port 421 after the nail is removed, further reducing environmental pollution.

[0044] like Figure 8 As shown, the nail-removing device 132 also includes a first cylinder 1321. The cylinder body of the first cylinder 1321 is fixedly connected to the first sealing section 13231, and the piston of the first cylinder 1321 is connected to the cylinder body of the second driving device 1327. The second sealing section 13232 is made of flexible material. When the opening abuts against the battery body 420, the first cylinder 1321 drives the second driving device 1327 and the gripper 1322 to press down together. Because the second sealing section 13232 is made of flexible material... Made of a hygienic material, it can maintain the sealing of the inner cavity even after deformation; then the second driving device 1327 drives the gripper 1322 to clamp the rubber nail 422, and then the first cylinder 1321 drives the gripper 1322 to rise, so that the rubber nail 422 is pulled out. At this time, the opening is still in contact with the battery body 420, and the electrolyte and volatile gas sprayed from the injection port 421 are confined in the inner cavity and are promptly removed by the suction device, minimizing the leakage of electrolyte and volatile gas.

[0045] To prevent the rubber nail 422 from slipping after being clamped by the gripper 1322 and remaining on the injection port 421, thus affecting subsequent production, a detector 1325 can be installed on the first sealing section 13231. When the first cylinder 1321 drives the gripper 1322 that clamps the rubber nail 422 to rise, the detector 1325 detects whether the gripper 1322 is holding the rubber nail 422. If it is detected that the nail removal is unsuccessful, the nail removal device 132 can be controlled to perform another nail removal operation.

[0046] The detector 1325 can be configured as a through-beam optical fiber to detect the glue nail 422 via optical signals; or it can be configured to detect the glue nail 422 by means of mechanical contacts.

[0047] Preferably, the position of the detector 1325 can be set to be at the same height as the highest position of the gripper 1322 relative to the first sealing section 13231; wherein the highest position of the gripper 1322 relative to the first sealing section 13231 is the height of the gripper 1322 when the piston of the first cylinder 1321 is retracted to the maximum position; when the gripper 1322 rises under the drive of the first cylinder, if the detector 1325 does not detect the glue nail 422, it can be determined that the nail removal was successful.

[0048] To facilitate fixing the second sealing section 13232, both the second driving device 1327 and the first sealing section 13231 are provided with a clamping part 1324 for fixing the second sealing section 13232. The clamping part 1324 fixes both ends of the second sealing section 13232 to the cylinder body of the second driving device 1327, which is a cylinder, and the first driving part, respectively. The second driving device 1327 can be made of plastic or soft materials such as rubber.

[0049] To enhance the friction between the gripper 1322 and the adhesive nail 422 and increase the success rate of nail removal, a protrusion is provided on the gripper 1322, which is used to abut against the adhesive nail 422.

[0050] In order to minimize the impact when the third frame 1313 drives the nail pulling device 132 to descend and comes into contact with the battery body 420, the second drive device 1327 is connected to a support, and a buffer device 1326 is provided on the support. The buffer device 1326 is connected to the third frame 1313. The buffer device 1326 can be implemented by various means such as elastic elements, starting pistons or hydraulic cylinders.

[0051] like Figure 5 As shown, the nail removal system 130 is also equipped with a nail receiving device 133 for collecting the removed rubber nails 422.

[0052] like Figure 11 , 12According to the second aspect of this embodiment, the nail receiving device 133 includes: a nail receiving box 1333 having an internal space for collecting adhesive nails 422, and an opening communicating with the internal space is provided on the top of the nail receiving box 1333; a nail scraper 1331 is provided on one side of the opening for blocking the movement of the adhesive nails 422 so that the adhesive nails 422 can fall into the nail receiving box 1333.

[0053] Using the nail-attaching device 133 of this embodiment, when removing a nail, the nail-attaching device 132 can be controlled to transport the removed nail 422 to the top of the nail-attaching box 1333. Then, the nail-attaching device 132 is controlled to move in the opposite direction toward the nail scraper 1331, so that the nail scraper 1331 abuts against the nail 422. Due to the abutting action of the nail scraper 1331, the nail 422 stuck on the gripper 1322 can fall off the gripper 1322 and fall into the nail-attaching box 1333.

[0054] The scraper plate 1331 can be configured to surround the opening. When the gripper 1322 holds the glue nail 422 and moves to the top of the nail receiving device 133, it can move in any direction in the horizontal plane and scrape off the glue nail 422 through the scraper plate 1331.

[0055] like Figure 12 As shown, a receiving plate 1332 covers the top of the nail box 1333, and an opening is provided on the receiving plate 1332. The nail scraper 1331 is provided on the receiving plate 1332.

[0056] In the nail removal system 130, after the nail removal device 132 removes the nail, the glue nail 422 can be collected in the nail receiving device 133. The glue nail 422 can be collected in the nail receiving device 133 by hand using the nail removal device 132, or the nail removal device 132 can be driven by the nail removal frame 131 to collect the glue nail 422 into the nail receiving device 133. When the glue nail 422 is collected in the nail receiving device 133 manually, the nail removal frame 131 is not required.

[0057] like Figure 11 , Figure 12 As shown, a support plate 1332 covers the top of the nail box 1333. The support plate 1332 is connected to the first base 134 through a support column, which can effectively prevent the nail box 1333 from shifting after being hit by the nail pulling device 132.

[0058] Furthermore, to enhance the support effect, multiple support pillars are provided around the support plate 1332.

[0059] like Figure 11 , Figure 12 As shown, to reduce the space occupied by the staple attaching device 133 within the staple removal system 130, the staple attaching box 1333 is located above the first base 134, and the storage box 1334 is located below the first base 134, as follows: Figures 1-3As shown, when the storage box 1334 is located below the first base 134, the storage box 1334 can be placed in the space where the battery cooling system 200 is located, effectively utilizing the space of the entire battery production equipment.

[0060] According to the third aspect of this embodiment, the nail removal system 130 includes: a nail removal device 132, which includes a gripper 1322 for clamping the adhesive nail 422, a second driving device 1327, and a sealing part 1323. The second driving device 1327 is drivenly connected to the gripper 1322 and is used to drive the gripper 1322 to clamp. The sealing part 1323 has an inner cavity, the gripper 1322 is located in the inner cavity, the inner cavity is connected to an air extraction device, and the sealing part 1323 is provided with an opening communicating with the inner cavity. The sealing part 1323 can abut against the battery body 420 so that the opening surrounds the liquid injection port 421 of the battery body 420; and a nail removal frame 131 connected to the second driving device 1327.

[0061] Using the nail-removing system 130 of this embodiment, when removing a nail, the opening can first be placed against the battery body 420 to seal the electrolyte inlet 421 containing the adhesive nail 422. Then, the second drive device 1327 is controlled to drive the gripper 1322 to clamp the adhesive nail 422 on the electrolyte inlet 421, and then the nail is removed. When the adhesive nail 422 is pulled out, the electrolyte sprayed from the electrolyte inlet 421 is blocked by the inner cavity, and the amount of splashing to the surroundings is greatly reduced. Furthermore, by setting the nail-removing device 132 on the nail-removing frame 131, whether the nail-removing device 132 is slid on the nail-removing frame 131 by manual operation or driven by the drive device set on the nail-removing frame 131, the perpendicularity of the opening against the battery body 420 can be guaranteed, reducing the problem of insufficient contact and difficulty in ensuring perpendicularity when manually holding the nail-removing device 132.

[0062] Specifically, such as Figure 4 , Figure 5 As shown, the nail removal frame 131 includes: a first frame 1311; a second frame 1312 slidably connected to the first frame 1311; a third frame 1313 slidably connected to the second frame 1312; and a nail removal device 132 slidably connected to the third frame 1313. The arrangement of the first, second, and third frames ensures that the nail removal device 132 can move in three directions within space.

[0063] In order to achieve automatic control of the position of the nail pulling device 132, a drive system can be installed on the nail pulling frame 131 to control the movement of the nail pulling device 132 in three directions.

[0064] like Figure 4As shown, the driving device may include a motor, cylinder or hydraulic cylinder or other device mounted on the first frame 1311 for driving the second frame 1312 to move, and may also include a motor, cylinder or hydraulic cylinder or other device mounted on the second frame 1312 for driving the third frame 1313 to move.

[0065] To meet the need for controlling the rise and fall of the drive device, the drive device may also include a lifting cylinder mounted on the third frame 1313 for driving the nail pulling device 132 to rise or fall. The piston of the lifting cylinder is connected to the nail pulling device 132 to drive the nail pulling device 132 to rise or fall.

[0066] In order to reduce the impact when the nail-pulling device 132 comes into contact with the battery body 420 under the drive of the lifting cylinder, the piston of the lifting cylinder can be connected to the cylinder body of the first cylinder 1321 in the nail-pulling device 132 by a buffer device 1326.

[0067] Specifically, the nail removal frame 131 is mounted on the first base 134, and the nail receiving device 133 passes through the first base 134; wherein, the nail receiving box 1333 is positioned above the first base 134, and the storage box 1334 is positioned below the first base 134, as shown below. Figure 12 As shown, the storage box 1334 is placed below the first base 134, that is, the storage box 1334 is placed in the area where the battery cooling system 200 is located, which effectively reduces the space occupied by the nail attaching device 133 in the nail removal system 130.

[0068] According to the nail removal method of the fourth aspect of this embodiment, the above-described nail removal system 130 is used to remove the adhesive nail 422 at the injection port 421, including the following steps:

[0069] The sealing step, control transport device 410 and / or nail removal system 130, bring the sealing part 1323 into contact with the battery body 420 and the opening on the sealing part 1323 surrounds the liquid injection port 421 of the battery body 420.

[0070] The clamping step involves controlling the second drive device 1327 so that the gripper 1322 clamps the adhesive nail 422;

[0071] In the nail removal step, the control jaw 1322 rises relative to the battery body 420, so that the glue nail 422 clamped by the jaw 1322 is pulled out.

[0072] The sealing part 1323 abutting against the battery body 420 can be achieved in several ways. It can be achieved by controlling the nail removal system 130 to make the sealing part 1323 abut against the battery body 420; it can also be achieved by lifting the transport device 410 to make the battery body 420 move toward the nail removal device 132 so that the battery body 420 abuts against the sealing part 1323; or it can be achieved by simultaneously controlling the relative movement of the nail removal device 132 and the transport device 410.

[0073] Here, the nail removal system 130 is controlled so that the sealing part 1323 abuts against the battery body 420. The position of the nail removal device 132 on the nail removal frame 131 can be adjusted manually, or the nail removal device 132 can be driven to move by controlling the drive system on the nail removal frame 131.

[0074] Specifically, the nail removal step includes: controlling the first cylinder 1321 so that the second drive device 1327 and the gripper 1322 rise together to remove the rubber nail 422; here, in order to increase the friction between the gripper 1322 and the rubber nail 422, a protrusion can be added to the gripper 1322.

[0075] To reduce the risk of failed nail removal and the battery body 420 remaining with the adhesive nail 422 flowing into the next process and affecting subsequent production, the nail removal method also includes a nail removal detection step after removing the adhesive nail 422. The nail removal detection step includes: after removing the adhesive nail 422, controlling the detection device 320 to detect a portion of the inner cavity defined by the first sealing section 13231. When the adhesive nail 422 is detected, the nail clamping step and the nail removal step are repeated.

[0076] The detection device 320 can use a through-beam optical fiber, or it can use a contact switch or other means to detect whether the clamping jaws 1322 have successfully clamped the rubber nails 422 after they have been clamped and raised.

[0077] Since electrolyte remains on the glue nail 422 pulled out from the injection port 421, it needs to be properly collected. Therefore, the glue nail removal method also includes a step of collecting the glue nail 422. The step of collecting the glue nail 422 includes: after removing the glue nail 422, controlling the drive system to move the glue nail removal device 132 above the glue nail receiving device 133, and controlling the second drive drive unit to separate the gripper 1322 so that the pulled-out glue nail 422 falls into the glue nail receiving device 133.

[0078] In order to prevent the adhesive nails 422 from sticking to the gripper 1322 and being difficult to detach on their own, the step of collecting the adhesive nails 422 may also include: controlling the second drive unit to separate the gripper 1322, and then controlling the nail receiving device 133 to move towards the nail scraper 1331, so that the adhesive nails 422 stuck on the gripper 1322 come into contact with the nail scraper 1331. The adhesive nails 422 can be detached from the gripper by the pressure of the nail scraper 1331 and fall into the nail receiving box 1333.

[0079] In order to collect the electrolyte and electrolyte vapors splashed out during the nail removal process in a timely manner, the nail removal method also includes a vacuuming step. The vacuuming step includes: after the sealing part 1323 abuts against the battery body 420, controlling the air extraction device to extract the gas and liquid in the inner cavity.

[0080] In the nail removal method of this embodiment, the implementation time of the vacuuming step can be reasonably arranged according to the needs of on-site production. It can be carried out simultaneously with the nail clamping step or the nail removal step, or the vacuuming step can be carried out before the nail clamping step. The vacuuming step can be carried out as long as the sealing part 1323 abuts against the battery body 420.

[0081] like Figure 9 , Figure 10 As shown, the detection device 320 according to the fifth aspect of this embodiment includes: a plurality of negative pressure cups 322, each negative pressure cup 322 being provided with a suction nozzle for contacting the liquid injection port 421 of the battery body 420; a vacuum device connected to the negative pressure cups 322 for extracting gas from inside the negative pressure cups 322; and a vacuum detection device 320 connected to each negative pressure cup 322 for detecting the gas pressure inside each negative pressure cup 322.

[0082] Using the detection device 320 of this embodiment, during detection, multiple negative pressure cups 322 are first controlled to abut against multiple battery bodies 420 respectively. Then, the vacuum pumping device is controlled to evacuate the negative pressure cups 322. Then, the vacuum detection device 320 is controlled to detect the vacuum degree inside the negative pressure cups 322. When the vacuum degree inside a certain negative pressure cup 322 is detected to be higher than a preset value, it can be determined that the battery body 420 corresponding to that negative pressure cup 322 is unqualified. The whole process effectively saves time in the later selection of unqualified batteries.

[0083] The aforementioned vacuum detection device 320 can be a multi-channel vacuum detection device that connects to multiple negative pressure cups 322, or it can be equipped with multiple vacuum gauges, with one vacuum gauge connected to each negative pressure cup 322.

[0084] Multiple methods can be used to make the multiple negative pressure cups 322 abut against the multiple battery bodies 420 respectively. For example, the multiple negative pressure cups 322 can be manually abutted against the battery body 420 at one time; or the multiple negative pressure cups 322 can be fixed on the bracket and the bracket can be controlled to move towards the battery body 420; or the multiple negative pressure cups 322 can be fixedly set, the multiple batteries can be installed on the transport device 410, and the transport device 410 can be raised so that the multiple battery bodies 420 abut against each negative pressure cup 322 respectively.

[0085] like Figure 10 As shown, in order to facilitate the installation of multiple negative pressure cups 322, multiple negative pressure cups 322 can be set on the detection bracket 321.

[0086] Furthermore, in order to facilitate the adjustment of the position of the negative pressure cup 322, the detection bracket 321 includes a translation bracket 3212, and multiple negative pressure cups 322 are all set on the translation bracket 3212; when it is necessary to adjust the horizontal position of the negative pressure cup 322 to adapt to the liquid injection port 421 at different positions on the battery body 420, only the position of the translation bracket 3212 needs to be adjusted.

[0087] like Figure 10 As shown, in order to enable multiple negative pressure cups 322 to move in the horizontal and vertical directions, the detection device 320 includes a second base 323, and 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.

[0088] In order to achieve automated control of the position of the negative pressure cup 322, the detection device 320 also includes a drive system, which is used to drive the lifting bracket 3211 to rise and fall relative to the second base 323, and / or drive the translation bracket 3212 to translate relative to the lifting bracket 3211.

[0089] The driving device may include components such as cylinders, linear motors or hydraulic cylinders for driving the lifting bracket 3211 to rise and fall, and may also include components such as cylinders, linear motors or hydraulic cylinders for driving the translation bracket 3212 to translate relative to the lifting bracket 3211.

[0090] like Figure 10 As shown, the detection bracket 321 includes multiple translation brackets 3212; each translation bracket 3212 is provided with multiple negative pressure cups 322; it is possible to set multiple translation brackets 3212 and set a single negative pressure cup 322 on each translation bracket 3212, or to reduce the number of translation brackets 3212 and set multiple negative pressure cups 322 on a single translation bracket 3212.

[0091] According to a sixth aspect of this embodiment, a detection method is provided, which uses the aforementioned detection device 320 to detect whether the battery body 420 is qualified. The detection method includes the following steps: a gas extraction step, controlling multiple negative pressure cups 322 such that the suction nozzles on the multiple negative pressure cups 322 abut against the liquid injection port 421 of the battery body 420, and then controlling the gas extraction device to extract the gas in the multiple negative pressure cups 322; a vacuum detection step, controlling the vacuum detection device 320 to detect the vacuum degree in each negative pressure cup 322; and a battery body qualification determination step, comparing the vacuum degree of each negative pressure cup 322 with a preset value, and determining that the battery body 420 corresponding to a negative pressure cup 322 is unqualified when the vacuum degree in a certain negative pressure cup 322 is higher than the preset value.

[0092] By applying the detection method of this embodiment, unqualified batteries can be directly selected after the negative pressure cup 322 evacuates the battery body 420, effectively saving time in the later selection of unqualified batteries.

[0093] During the gas extraction step, the translation bracket 3212 and / or the lifting bracket 3211 can be controlled to make the suction nozzle abut against the liquid injection port 421 of the battery body 420; or the transport device 410 can be controlled to make the liquid injection port 421 of the battery body 420 in the transport device 410 abut against the suction nozzle.

[0094] By controlling the translation bracket 3212 and / or the lifting bracket 3211, the position of the translation bracket 3212 and / or the lifting bracket 3211 can be manually adjusted so that the suction nozzle on the negative pressure cup 322 abuts against the battery body 420. Alternatively, the translation bracket 3212 and / or the lifting bracket 3211 can be moved by controlling the drive device so that the suction nozzle on the negative pressure cup 322 abuts against the battery body 420.

[0095] Similarly, the control of the transport device 410 causes the nozzle to come into contact with the battery body 420. The position of the transport device 410 can be adjusted manually, or the device for lifting and lowering the transport device 410 can be operated to raise the transport device 410 and bring the battery body 420 into contact with the nozzle.

[0096] According to a seventh aspect of this embodiment, the battery cooling system 200 includes: a second housing 210 having a cavity for dissipating heat from the battery; a transport device 410 disposed in the cavity for accommodating the battery body 420; a vent 220 disposed on the second housing 210 and communicating with the cavity; and a first fan disposed at the vent 220 for supplying air to the cavity or exhausting air from inside the cavity.

[0097] Using the battery cooling system 200 of this embodiment, during the battery production process, the high-temperature battery can be placed in the battery cooling system 200 first, and then the first fan can be controlled to rotate to accelerate the air flow in the battery cooling system 200, so that the hot air is discharged from the vent 220 or the outside cold air is sent into the cavity through the vent 220 to dissipate heat and cool the battery before it is sent into the nail puller for nail removal, which effectively reduces the situation where electrolyte is easily splashed when removing nails from high-temperature batteries.

[0098] The fan can be installed on the outside of the second housing 210, corresponding to the vent 220, for easy replacement, or it can be installed inside the second housing 210, corresponding to the vent 220.

[0099] like Figure 1As shown, in order to increase the ventilation in the inner cavity and enhance the cooling effect, multiple ventilation openings 220 can be provided on the second housing 210, and a first fan can be provided at each ventilation opening 220.

[0100] For example, 1. Figure 2 As shown, a cooling frame is installed in the cavity, and a transport device 410 is installed on the cooling frame. A limit switch 250 is installed on the frame, and the limit switch 250 is electrically connected to the fan.

[0101] The transport device 410 can be detachably connected to the cooling frame. After the multiple batteries in the transport device 410 have finished cooling, the entire transport device 410 can be removed and a new transport device 410 can be replaced to carry out the next battery cooling process.

[0102] Here, when the transport device 410 is installed into the cooling frame, the limit switch 250 is triggered by the cooling frame, thereby energizing the fan. After the battery body 420 has finished cooling, the transport device 410 is removed, the limit switch 250 is disconnected, and the fan automatically stops.

[0103] Specifically, the transport device 410 can move up and down along the cooling frame under the drive of the drive mechanism. When the transport device 410 moves to the installation position of the limit switch 250, the limit switch 250 closes and the fan is powered on. When the transport device 410 is transported to other positions, the limit switch 250 opens and the fan is powered off.

[0104] like Figure 2 As shown, multiple limit switches 250 can also be installed on the cooling frame along the vertical direction; multiple transport devices 410 can be installed on the frame at the same time to cool the battery, increasing the number of battery bodies 420 cooled in a single cooling cycle.

[0105] like Figure 3 As shown, the battery cooling system 200 also includes a vent 220. The first end of the vent 220 is connected to the cavity, and the second end of the vent 220 is connected to the outside air. At this time, the vent 220 and the fan can increase the airflow in the cavity, so that the heat of the battery body 420 can be carried away as soon as possible, thereby increasing the cooling efficiency.

[0106] like Figure 2 , Figure 3 As shown, a grille 240 may be installed between the transport device 410 and the vent 220.

[0107] To further increase convection efficiency, the first end and the vent 220 are positioned opposite each other. This "opposite" setting means that the first end and the vent 220 are positioned at opposite ends in the left-right direction or at opposite ends in the front-back direction. In this case, there are fewer bends in the airflow path, resulting in higher airflow efficiency.

[0108] like Figure 3 As shown, to further enhance heat dissipation efficiency, a ventilation box 230 is connected to the first end, and a second fan is installed inside the ventilation box 230.

[0109] The second fan can also be electrically connected to the limit switch 250, so that the second fan can maintain the same operating state as the first fan 3.

[0110] When the first end is connected to the ventilation box 230, the grille 240 is located between the ventilation box 230 and the transport device 410.

[0111] like Figures 1-3 As shown, according to the eighth aspect of this embodiment, a battery production apparatus includes: a nail removal system 130, including a nail removal frame 131 and a nail removal device 132 disposed on the nail removal frame 131, the nail removal device 132 being used to remove adhesive nails 422 from a battery body 420; a battery cooling system 200 being used to cool the battery body 420; and a detection device 320 being used to detect whether the battery body 420 after formation is qualified; the nail removal system 130, the battery cooling system 200, and the detection device 320 are stacked.

[0112] Using the battery production equipment of this embodiment, during battery production, the high-temperature battery is first sent to the battery cooling system 200 for cooling, and then the cooled battery is sent to the upper or lower pin removal system 130 for pin removal operation. After the pin removal, the battery is sent to the upper or lower detection device 320 for vacuuming and detection. The whole process only requires moving the battery up and down, which effectively reduces the battery handling process.

[0113] The pin removal system 130, battery cooling system 200, and detection system 300 can be selected from the pin removal system 130, battery cooling system 200, and detection system 300 mentioned in the above embodiments, or can be flexibly selected from existing pin removal systems 130, battery cooling systems 200, or detection systems 300 as needed.

[0114] like Figure 1 As shown, the nail removal system 130, the battery cooling system 200, and the detection device 320 are arranged sequentially from top to bottom.

[0115] The battery production equipment also includes a transport device 410. The nail removal system 130, battery cooling system 200, and testing device 320 are all equipped with channels to avoid the transport device 410, which can slide up and down within the channels. The sequence of the nail removal, cooling, and testing processes can be rationally arranged according to the actual needs of the production site, and the aforementioned nail removal methods and / or battery testing methods can be rationally utilized. When a process is completed and the next process needs to be switched, the vertical position of the transport device 410 can be adjusted inside the equipment so that the transport device 410 can enter different parts, effectively improving the automation level of the equipment.

[0116] To further improve the automation level of battery production equipment, a battery production equipment driver is provided. The driver is used to drive the transport device 410 to slide up and down within the channel. Under the drive of the driver, the transport device 410 can not only switch between different processes, but also participate in the production of each process. For example, when the battery body 420 is in the nail removal process, the driver can drive the transport device 410 to rise, so that the battery body 420 on the transport device 410 abuts against the nail removal device 132. That is, when the battery body 420 is in the inspection process, the translation bracket 3212 can be controlled to move aside to avoid the transport device 410, so that the transport device 410 transports the battery body 420 to below the negative pressure cup 322. Then, the inspection bracket 321 and / or the driver can be controlled to make the battery body 420 on the transport device 410 abut against the negative pressure cup 322 to complete the inspection process. When the cooling process is performed, the transport device 410 can be controlled to move to the limit switch 250, so that the limit switch 250 is triggered and the first fan and / or the second fan is powered on.

[0117] like Figure 13 As shown, the driver may include a lifting device 412 disposed on the second base 323.

[0118] To simplify the control of the entire battery production equipment, the driver for lifting the conveyor 410 can be a cylinder; in the entire battery production equipment, a pneumatic system can be selected to drive the operation of each part, effectively simplifying control.

[0119] like Figure 1 , Figure 4 As shown, the pin removal system 130 includes a pin receiving device 133, which extends into the battery cooling system 200.

[0120] like Figure 3 As shown, the battery cooling system 200 includes a vent 220 that passes through the pin removal system 130 and extends to the outside air.

[0121] To reduce the pollution of the external environment by electrolyte splashing during battery pin removal, the battery production equipment includes a first housing 110 that surrounds the pin removal system 130.

[0122] like Figure 1 As shown, in order to promptly discharge the volatile gases generated during nail removal and avoid environmental pollution, a first ventilation device 120 is provided on the outside of the first housing 110.

[0123] like Figures 1-3 As shown, the battery production equipment also includes a second housing 210 surrounding the battery cooling system 200 and a third housing 310 surrounding the detection device 320. The first housing 110, the second housing 210 and the third housing 310 are integrally arranged to form the support for each piece of equipment inside the battery production equipment.

[0124] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A nail pulling system, comprising: a nail pulling device, the nail pulling device comprising a clamping jaw for clamping a nail, a second driving device drivingly connected with the clamping jaw and configured to drive the clamping jaw to clamp, and a sealing part having an inner cavity in which the clamping jaw is located, the inner cavity being connected with a suction device, the sealing part being provided with an opening communicating with the inner cavity, the sealing part being capable of abutting against a battery body so that the opening surrounds a liquid inlet of the battery body; the sealing part comprising a second sealing section made of a flexible material and configured to deform to keep the inner cavity sealed by abutting the opening on the battery body. a nail pulling frame connected with the second driving device. 2.The nail pulling system according to claim 1, wherein the nail pulling frame comprises: a first frame; a second frame slidingly connected with the first frame; a third frame slidingly connected with the second frame; a nail pulling device slidingly connected with the third frame. 3.The nail pulling system according to claim 1, further comprising a driving system provided on the nail pulling frame and configured to drive the nail pulling device to move. 4.The nail pulling system according to claim 1, further comprising a nail receiving device connected with the nail pulling frame and configured to collect nails pulled out by the nail pulling device. A nail pulling method for the nail pulling system according to any one of claims 1 to 4, the nail pulling method comprising the following steps: a blocking step of controlling a conveying device and / or the nail pulling system so that a sealing part abuts against a battery body and an opening on the sealing part surrounds a liquid inlet of the battery body, wherein the conveying device is configured to convey the battery body; a clamping step of controlling a second driving device so that a clamping jaw clamps a nail; 5. A method of pulling a nail, characterized by a pulling step of controlling the clamping jaw to ascend relative to the battery body so that the nail clamped by the clamping jaw is pulled out. 6.The nail pulling method according to claim 5, wherein the pulling step comprises controlling a first cylinder so that a second driving device and the clamping jaw ascend together to pull out the nail. 7.The nail pulling method according to claim 6, further comprising the following steps: a pulling detection step of controlling a detection device to detect a part of the inner cavity defined by a first sealing section after the nail is pulled out, and repeating the clamping step and the pulling step when the nail is detected, wherein the sealing part comprises the first sealing section and the second sealing section, the first sealing section is provided with the opening, and the first sealing section is connected with the second sealing section and defines the inner cavity together. 8.The nail pulling method according to claim 5, wherein the blocking step comprises controlling a driving system so that the nail pulling device moves above the battery body to make the opening surround the liquid inlet. 9.The nail pulling method according to claim 8, further comprising the following steps: ​ ​ ​ ​ ​ Collecting the glue nail: after the glue nail is pulled out, the driving system is controlled to move the nail pulling device above the nail collecting device, and the second driving device is controlled to separate the clamping jaw, so that the pulled-out glue nail falls into the nail collecting device.

10. The nail pulling method according to claim 5, wherein, Further comprising the following steps: Vacuumizing: after the sealing part abuts against the battery body, the air extracting device is controlled to extract the gas and liquid in the inner cavity.

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