Lithium battery nail removal equipment

Abstract

The present invention discloses a lithium battery nail removal device, comprising a frame, a battery conveying mechanism disposed on the frame, and batteries placed on the battery conveying mechanism; a horizontal drive mechanism disposed on the frame, a nail removal mechanism disposed at the movable end of the horizontal drive mechanism, and the nail removal mechanism capable of removing a plurality of nails at a time; and a lithium battery post-nail removal detection mechanism disposed on the battery conveying mechanism, the lithium battery post-nail removal detection mechanism being located downstream of the nail removal mechanism and capable of detecting whether the nails on the battery have been removed. The advantages of the present invention are that the nail removal device has a high overall nail removal efficiency and can detect whether the nails have been removed, thereby preventing the battery from flowing into the next workstation and becoming scrapped.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery production, and in particular to a lithium battery nail pulling device. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloys as the negative electrode material and a non-aqueous electrolyte solution. After filling and before formation, the batteries need to be kept in a high-temperature static state. During this process, temporary nails are inserted into the filling port. The main reasons are: 1. Since the battery filling port remains open during this process, foreign matter and metal dust must be prevented from entering the battery during transportation, potentially causing short circuits and other problems. 2. Due to the high temperature of the static state, electrolyte volatilization must be prevented. 3. Due to the high temperature of the static state, the volatilization of the electrolyte can pollute the workshop environment, requiring ventilation in the static state room. Due to the high temperature of the entire workshop, exhaust ventilation affects the workshop temperature and dew point, disrupting continuous production. Based on these three factors, temporary nails are typically inserted into the battery filling port after filling and removed before formation. In highly automated factories, for example, the high-temperature static state and formation workshops are largely unmanned. Due to the high temperatures, personnel cannot remain in these workshops for long periods of time. Therefore, automated nail removal devices are essential to replace manual operations.

[0003] In the prior art, for example, the Chinese utility model patent with publication number CN209635388U discloses a fully automatic nail removal machine, which is suitable for removing lithium battery sealing nails, including a frame, a battery grabbing manipulator fixed on the frame, and a battery conveyor line located below the battery grabbing manipulator. It also includes a nail removal mechanism provided on the battery grabbing manipulator, and the nail removal mechanism includes a lifting cylinder fixed on the battery grabbing manipulator, a closing cylinder fixed to the driving end of the lifting cylinder, and a group of nail pulling claws fixed to the driving end of the closing cylinder, and nail pulling grooves are relatively arranged on the inner sides of the group of nail pulling claws. The production efficiency of the nail pulling equipment commonly used in the prior art is generally low and cannot meet actual production needs. Contents of the invention

[0004] The technical problems to be solved by the present invention are:

[0005] The technical problem of low nail removal efficiency of lithium batteries in the existing technology.

[0006] The present invention solves the above technical problems through the following technical means:

[0007] A lithium battery nail removal device comprises a frame, a battery conveying mechanism is provided on the frame, and the battery is placed on the battery conveying mechanism;

[0008] A horizontal driving mechanism is provided on the frame, and a nail pulling mechanism is provided at the movable end of the horizontal driving mechanism, which can pull out a number of plastic nails at a time;

[0009] The battery conveying mechanism is provided with a lithium battery post-nail removal detection mechanism, which is located downstream of the nail removal mechanism and can detect whether the glue nails on the battery are removed.

[0010] When the lithium battery nail pulling device of the present invention is actually used, the battery moves with the battery conveying mechanism to realize the conveying and movement of the battery. The battery stops when it moves to the nail pulling station, and the horizontal driving mechanism drives the nail pulling mechanism to move above the battery at the nail pulling station. The nail pulling mechanism works to pull out the glue nails on the battery, and the nail pulling mechanism can pull out several glue nails at a time. Subsequently, the battery after nail pulling continues to move with the battery conveying mechanism until it moves to the inspection station. After the lithium battery is nailed out at the inspection station, the inspection mechanism detects whether the glue nails on the battery are pulled out, so as to avoid the battery flowing into the next station due to incomplete removal of the glue nails, which may cause the battery to be scrapped. Compared with the existing technology, the nail pulling device has a higher overall nail pulling efficiency, and can also detect whether the glue nails are pulled out, so as to avoid the battery flowing into the next station, which may cause the battery to be scrapped.

[0011] Optimally, the nail pulling mechanism includes an upper connecting frame, on which a lower connecting frame is vertically slidably mounted, and the upper connecting frame is further provided with a connecting frame driving mechanism capable of driving the lower connecting frame to rise and fall;

[0012] A plurality of plastic nail clamping parts are arranged on the lower connecting frame.

[0013] During actual operation, the connecting frame driving mechanism drives the lower connecting frame to descend, and the plastic nail clamping parts open to clamp the corresponding plastic nails. After clamping is completed, the lower connecting frame rises to pull out the plastic nails. The operation is simple and reliable.

[0014] Optimally, the frame is further provided with a drop hopper, and a scraper is provided in the drop hopper;

[0015] The horizontal driving mechanism can drive the nail pulling mechanism to move above the drop hopper, and the scraper can remove the plastic nails on the nail pulling mechanism.

[0016] When the nail pulling mechanism carries the pulled out plastic nails to the drop hopper, the plastic nails can be pulled out under the action of the scraper. When the nail pulling mechanism returns from the drop hopper, it can be moved a second time to ensure that the plastic nails can be completely separated from the nail pulling mechanism and the plastic nails can be collected.

[0017] Optimally, a tray is placed on the battery conveying mechanism, the batteries are placed in the tray, and positioning holes are provided on the tray;

[0018] The battery conveying mechanism is provided with two sets of blocking and positioning mechanisms, which are respectively located below the nail pulling mechanism when pulling out nails and below the lithium battery detection mechanism after nail pulling out;

[0019] It also includes a control unit, wherein the blocking and positioning mechanism includes a lifting baffle, a telescopic positioning pin, a sensor, and a tray detection member arranged on the battery conveying mechanism;

[0020] The pallet detection part can detect the passing of the pallet, the control unit can control the lifting baffle to rise to block the pallet, the sensor can sense that the pallet moves under the nail pulling mechanism or under the detection mechanism after the lithium battery nail is pulled out, and the control unit can control the telescopic positioning pin to extend and insert into the positioning hole of the pallet to position it.

[0021] When the pallet detection part detects that the pallet is about to enter the nail pulling station or the inspection station, the control unit can control the lifting baffle to rise and stand by to prevent it from flowing downstream. Then, when the sensor senses that the pallet has moved to the bottom of the nail pulling mechanism or the bottom of the lithium battery nail pulling inspection mechanism, it means that the pallet has moved into place. At this time, the control unit controls the telescopic positioning pin to extend and insert into the positioning hole of the pallet to position it for nail pulling or inspection, with high positioning accuracy.

[0022] Optimally, an anti-collision strip is provided on the side of the lifting baffle facing the pallet.

[0023] Optimally, at least two telescopic positioning pins are provided in each group of blocking positioning mechanisms, the positioning hole of the tray is located at the bottom of the tray, and the telescopic positioning pins can be inserted into the positioning hole of the tray from the bottom of the tray.

[0024] The optimized device further includes a control unit, wherein the lithium battery post-nail removal detection mechanism includes a bracket and an alarm unit, the bracket is provided with a lifting drive member, and the movable end of the lifting drive member is connected to a lifting plate;

[0025] A lifting trigger is provided on the lifting plate for vertical sliding, and a trigger detection member is also provided on the lifting plate;

[0026] When the lifting trigger member is lifted relative to the lifting plate, the trigger detection member can detect the lifting trigger member and transmit a signal to the control unit, and the control unit can control the alarm unit to sound an alarm.

[0027] After the nail removal process, the lifting drive component drives the lifting plate to descend. If there are any unremoved or tilted nails on the battery, as the lifting plate descends, the nails will block the descent of the lifting trigger component. That is, the lifting trigger component rises relative to the lifting plate. The trigger detection component detects the lifting trigger component and transmits a signal to the control unit. The control unit controls the alarm unit to sound an alarm, indicating that the nails have not been removed. The operator can then further process the unremoved nails to prevent the battery from flowing into the next process and causing product scrapping. The overall structure is simple, sensitive and reliable, and can realize automatic nail detection.

[0028] Optimally, the lifting trigger comprises a lifting column vertically slidably mounted on the lifting plate, with a top block provided on the top of the lifting column;

[0029] An elastic body is provided between the lifting column and the lifting plate, and the elastic body can exert a downward force on the lifting column.

[0030] The setting of the elastic body can ensure that the lifting column can be smoothly reset after leaving the plastic nail after being lifted, preparing for the next test, and the action is reliable.

[0031] Optimally, a connecting block is provided at the lower end of the lifting column, the elastic body is sleeved on the lifting column, and the upper and lower ends of the elastic body are respectively pressed against the bottom of the lifting plate and the top of the connecting block;

[0032] A contact block is provided at the bottom of the connecting block, and the bottom surface of the contact block is larger than the rubber nail to be detected.

[0033] The bottom surface of the contact block is set to be larger than the plastic nail to be detected, which expands the detection range of the contact block and makes it easier to press on the plastic nail that has not been pulled out. When a deviation occurs and causes the contact block to deviate from the center of the plastic nail, the larger contact block can also detect the plastic nail, thereby improving the reliability of detection.

[0034] Optimally, the trigger detection member adopts a laser signal device, and when the lifting trigger member is lifted relative to the lifting plate, it can block the light beam emitted by the laser signal device.

[0035] The advantages of the present invention are:

[0036] 1. When the lithium battery nail pulling device of the present invention is actually used, the battery moves with the battery conveying mechanism to realize the conveying and movement of the battery. The battery stops when it moves to the nail pulling station. The horizontal driving mechanism drives the nail pulling mechanism to move above the battery at the nail pulling station. The nail pulling mechanism works to pull out the glue nails on the battery, and the nail pulling mechanism can pull out several glue nails at a time. Subsequently, the battery after nail pulling continues to move with the battery conveying mechanism until it moves to the inspection station. After the lithium battery at the inspection station is nailed out, the inspection mechanism detects whether the glue nails on the battery are pulled out, so as to avoid the battery flowing into the next station due to incomplete removal of the glue nails, which may cause the battery to be scrapped. Compared with the existing technology, the nail pulling device has a higher overall nail pulling efficiency and can also detect whether the glue nails are pulled out, so as to avoid the battery flowing into the next station, which may cause the battery to be scrapped.

[0037] 2. During the actual operation, the connecting frame driving mechanism drives the lower connecting frame to descend, and the plastic nail clamping parts open to clamp the corresponding plastic nails. After clamping is completed, the lower connecting frame rises to pull out the plastic nails. The operation is simple and reliable.

[0038] 3. When the nail pulling mechanism carries the pulled out plastic nails to the drop hopper, the plastic nails can be pulled out under the action of the scraper. When the nail pulling mechanism returns from the drop hopper, it can be moved a second time to ensure that the plastic nails can be completely separated from the nail pulling mechanism and the plastic nails can be collected.

[0039] 4. When the pallet detection part detects that the pallet is about to enter the nail pulling station or the inspection station, the control unit can control the lifting baffle to rise and stand by to prevent it from flowing downstream. Then, when the sensor senses that the pallet has moved to the bottom of the nail pulling mechanism or the bottom of the lithium battery nail pulling inspection mechanism, it means that the pallet has moved into place. At this time, the control unit controls the telescopic positioning pin to extend and insert into the positioning hole of the pallet to position it for nail pulling or inspection, with high positioning accuracy.

[0040] 5. After the nail removal process, the lifting drive component drives the lifting plate to descend. If there are any unremoved or tilted nails on the battery, as the lifting plate descends, the nails will block the descent of the lifting trigger component. That is, the lifting trigger component rises relative to the lifting plate. The trigger detection component detects the lifting trigger component and transmits a signal to the control unit. The control unit controls the alarm unit to sound an alarm, indicating that the nails have not been removed. The operator can then further process the unremoved nails to prevent the battery from flowing into the next process and causing product scrapping. The overall structure is simple, sensitive and reliable, and can achieve automatic nail detection.

[0041] 6. The setting of the elastic body can ensure that the lifting column can be smoothly reset after leaving the plastic nail after being lifted, preparing for the next test, and the action is reliable.

[0042] 7. The bottom surface of the contact block is set to be larger than the plastic nail to be detected, which expands the detection range of the contact block and makes it easier to press on the plastic nail that has not been pulled out. When deviation occurs and causes the contact block to deviate from the center of the plastic nail, the larger contact block can also detect the plastic nail, thereby improving the reliability of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A three-dimensional diagram of a lithium battery nail removal device according to an embodiment of the present invention;

[0044] Figure 2-5 A three-dimensional diagram of a lithium battery nail removal device according to an embodiment of the present invention (some components are hidden);

[0045] Figure 6 Schematic diagram of a lithium battery post-nail removal detection mechanism according to an embodiment of the present invention;

[0046] Figure 7 for Figure 6 A partial enlarged view of middle A;

[0047] Figure 8 is a cross-sectional view of a lifting trigger member in an embodiment of the present invention;

[0048] Figure 9 A three-dimensional diagram of a nail pulling mechanism according to an embodiment of the present invention;

[0049] Figure 10A three-dimensional diagram of a blocking and positioning mechanism in an embodiment of the present invention;

[0050] Figure 11 、 12 Schematic diagram of the movement of the nail pulling mechanism in an embodiment of the present invention;

[0051] Figure 13 This is a schematic diagram of the installation of the telescopic positioning pin and the sensor in an embodiment of the present invention;

[0052] in,

[0053] Lithium battery post-nail removal detection mechanism 1; bracket 11; leg 111; fixed plate 112; lifting drive member 12; lifting plate 13; lifting column guide sleeve 131; lifting trigger member 14; lifting column 141; top block 142; elastic body 143; connecting block 144; contact block 145; trigger detection member 15; light beam 151; connecting seat 152; lifting guide pair 16; fixed plate guide sleeve 161; guide column 162;

[0054] Batteries - 2; Plastic nails - 21;

[0055] Rack-3; Side door-31;

[0056] Battery transport mechanism-4;

[0057] Horizontal drive mechanism-5;

[0058] Nail extraction mechanism 6; upper connecting frame 61; lower connecting frame 62; connecting frame drive mechanism 63; nail clamp 64; horizontal plate 611; vertical plate 612; rib plate 613; guide rail 614; lower vertical plate 621; slider 622; flat plate 623; connecting plate 624; lower flat plate 625; lower rib plate 626; vertical plate 627; enclosure plate 628;

[0059] Hopper-7; Scraper-71; Connector-72; Notch-73; Recovery Tray-74;

[0060] Blocking and positioning mechanism-8; positioning pin drive mechanism-80; lifting baffle-81; telescopic positioning pin-82; sensor-83; anti-collision strip-84; tray detection member-85; connecting frame-86; lifting guide sleeve-87; lifting guide column-88; lifting baffle drive mechanism-89; sensor connecting plate-831;

[0061] Tray-9. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0063] like Figure 1 、 2 As shown, a lithium battery nail pulling device includes a lithium battery post-nail pulling detection mechanism 1, a frame 3, a battery conveying mechanism 4, a horizontal driving mechanism 5, a nail pulling mechanism 6, a drop hopper 7, a blocking and positioning mechanism 8, and a control unit.

[0064] The main function of the frame 3 is to provide a mounting position for the remaining components. The frame 3 is not limited to a specific shape, as long as it can meet the requirements of the components to be installed and matched and achieve the corresponding functions. Figure 1 、 2 As shown, in this embodiment, the rack 3 includes a profile frame and a skin installed on the frame. A battery conveying mechanism 4 is provided on the left side of the middle of the rack 3. Side doors 31 are provided on the left and right sides of the rack 3, and supporting feet are provided at the four corners of the bottom.

[0065] The function of the battery conveying mechanism 4 is to convey the battery 2. Figure 1 As shown, the battery conveying mechanism 4 is provided with trays 9, and batteries 2 are placed in the trays 9. Each tray 9 is provided with two rows and eight columns of 16 batteries 2. In this embodiment, the battery conveying mechanism 4 is capable of conveying the batteries 2 forward. The battery conveying mechanism 4 can use a conveying method such as a conveyor belt or a conveyor chain. In this embodiment, the battery conveying mechanism 4 uses a roller conveyor, which conveys the batteries 2 forward and is controlled by a control unit.

[0066] like Figure 3 、 4 As shown, a horizontal driving mechanism 5 is provided on the frame 3. Specifically, in this embodiment, the horizontal driving mechanism 5 adopts a linear slide, such as a synchronous belt type or a ball screw type. The linear slide is installed in the middle position of the top of the frame 3, and its movement direction is along the left and right directions. The movable end of the horizontal driving mechanism 5 is provided with a nail pulling mechanism 6, that is, the nail pulling mechanism 6 is installed on the slide of the linear slide.

[0067] The nail pulling mechanism 6 can pull out a number of plastic nails 21 at a time. Specifically, Figure 9 As shown, the nail pulling mechanism 6 includes an upper connecting frame 61 , which includes a horizontal plate 611 connected to the slide, and a vertical plate 612 installed below the horizontal plate 611 , and a pair of ribs 613 are provided between the horizontal plate 611 and the vertical plate 612 .

[0068] like Figure 9 As shown, a lower connecting frame 62 is vertically slidably mounted on the upper connecting frame 61 . Specifically, a pair of vertical guide rails 614 are provided on the front side of the longitudinal plate 612 .

[0069] like Figure 9 As shown, the lower connecting frame 62 includes a lower longitudinal plate 621. Four sliders 622 are provided on the rear side of the lower longitudinal plate 621, which slide in engagement with the two guide rails 614. A flat plate 623 is provided below the lower longitudinal plate 621. A pair of longitudinally arranged connecting plates 624 connect the flat plate 623 to a lower flat plate 625 below the flat plate 623. A lower rib 626 is provided between the connecting plates 624 and the lower flat plate 625. A vertical plate 627 is provided on each of the front and rear sides of the lower flat plate 625. Several rubber nail clamps 64 are mounted on the vertical plates 627.

[0070] In this embodiment, Figure 9 As shown, the nail clamping member 64 is a pneumatic clamping jaw with anti-slip grooves on the inner side of the clamping jaw. The opening and closing direction of the pneumatic clamping jaw is perpendicular to the conveying direction of the battery conveying mechanism 4. Each vertical plate 627 is equipped with four pneumatic clamping jaws, a total of eight, that is, eight nails can be removed at a time.

[0071] like Figure 9 As shown, the upper connecting frame 61 is also provided with a connecting frame driving mechanism 63 that can drive the lower connecting frame 62 to rise and fall. Specifically, the connecting frame driving mechanism 63 adopts a cylinder or an electric push rod. In this embodiment, a cylinder is used, and the cylinder is installed at the bottom front side of the horizontal plate 611. Its piston rod is connected downward to the flat plate 623 to achieve driving and lifting.

[0072] Further, such as Figure 5 As shown, a surrounding plate 628 is provided around the lower flat plate 625 , and the nail clamping member 64 is located on the inner side of the surrounding plate 628 .

[0073] like Figure 5 As shown, the frame 3 is also provided with a hopper 7, which is located to the right of the battery conveying mechanism 4 and below the right end of the horizontal drive mechanism 5. The hopper 7 is larger at the top and smaller at the bottom. The front and rear sides of the hopper 7 are each connected to the frame 3 via a connecting piece 72. The connecting piece 72 is provided with a long hole with a length along the vertical direction. Screws pass through the long hole to connect to the frame 3 to adjust the height position of the hopper 7 to meet actual needs. The front and rear walls of the hopper 7 are both provided with a long hole with a length along the left and right direction. Screws pass through the long hole to connect to the connecting piece 72 to adjust the left and right position of the hopper 7.

[0074] like Figure 5As shown, a scraper 71 is provided in the drop hopper 7. The scraper 71 is in the shape of a [ with both ends bent. Long holes with their length along the vertical direction are provided at both ends of the scraper 71. Long holes with their length along the left and right directions are provided on the front and rear walls of the drop hopper 7. Bolts and nuts are used to connect the long holes between the scraper 71 and the drop hopper 7, thereby realizing the adjustment of the up, down, left and right positions of the scraper 71. The length direction of the scraper 71 is along the front and back direction, and its side faces are located in the vertical plane. Notches 73 are provided on the tops of the left and right side walls of the drop hopper 7. The top of the scraper 71 is lower than the top edge of the drop hopper 7 and higher than the notches 73. Furthermore, the number of the scrapers 71 is not less than the number of columns of the glue nail clamps 64, and the glue nail clamps 64 are in two rows and four columns. In this embodiment, four scrapers 71 are provided, and the spacing between two adjacent scrapers 71 is equal to the spacing between two adjacent columns of glue nail clamps 64.

[0075] like Figure 11 、 12 As shown, the horizontal driving mechanism 5 can drive the nail pulling mechanism 6 to move above the drop hopper 7, and the scraper 71 can remove the glue nails 21 on the nail pulling mechanism 6. Specifically, when the nail pulling mechanism 6 moves to the right, it passes above the notch 73 and enters the drop hopper 7. The nail pulling mechanism 6 releases the glue nails, and the scraper 71 moves the glue nails, and moves them again when returning.

[0076] Further, such as Figure 5 As shown, a recovery tray 74 is provided at the discharge port below the drop hopper 7 for holding the pulled-out plastic nails.

[0077] Positioning holes are set on the tray 9 containing the battery 2; Figure 4 As shown, the battery conveying mechanism 4 is provided with two sets of blocking and positioning mechanisms 8, which are respectively located below the nail pulling mechanism 6 during nail pulling and below the lithium battery post-nail pulling inspection mechanism 1. The area below the nail pulling mechanism 6 during nail pulling is the nail pulling station, and the area below the lithium battery post-nail pulling inspection mechanism 1 is the inspection station.

[0078] Comprehensive Reference Figure 4 、 10 The blocking and positioning mechanism 8 includes a lifting baffle 81 , a telescopic positioning pin 82 , a sensor 83 , and a tray detection member 85 , which are arranged on the battery conveying mechanism 4 .

[0079] The tray detection member 85 can detect the passage of the tray 9, and the control unit can control the lifting baffle 81 to rise and block the tray 9. In this embodiment, the sensor 83 can be a proximity sensor or other existing technology for detection. The sensor 83 can sense that the tray 9 moves below the nail extraction mechanism 6 or below the lithium battery nail extraction detection mechanism 1, and the control unit can control the retractable positioning pin 82 to extend and insert into the positioning hole of the tray 9 to position it.

[0080] Specifically, the tray detection member 85 can be detected by using existing technologies such as proximity sensors, such as Figure 5 As shown, in this embodiment, the tray detection member 85 adopts a through-beam photoelectric switch, which is installed on both sides of the battery conveying mechanism 4 to detect the passing tray 9. A tray detection member 85 is set at the place where the tray 9 enters the nail pulling station, and a tray detection member 85 is set at the place where the tray 9 enters the detection station. When the tray 9 passes by, it can transmit a signal to the control unit.

[0081] like Figure 10 As shown, the blocking and positioning mechanism 8 includes a connecting frame 86 arranged at the bottom of the battery conveying mechanism 4, and long holes are provided at both ends of the connecting frame 86 along the front-to-back direction. The connecting frame 86 is installed at the bottom of the battery conveying mechanism 4 through the long holes. The connecting frame 86 is provided with a pair of lifting guide sleeves 87, and lifting guide columns 88 are slidably installed in the lifting guide sleeves 87. The lifting baffle 81 is installed at the top of the two lifting guide columns 88. A lifting baffle driving mechanism 89 is vertically provided on the connecting frame 86. The lifting baffle driving mechanism 89 adopts a cylinder or a push rod motor, and its movable end passes through the connecting frame 86 upward and is connected to the bottom of the lifting baffle 81 to drive the lifting baffle 81 to rise and fall.

[0082] like Figure 10 As shown, the lifting baffle 81 includes three sections, which are a horizontal section, an inclined section, and a vertical section from bottom to top. It can be formed by bending, and the inclined section is inclined toward the upper rear side. The lifting baffle 81 is located between the two rollers for lifting.

[0083] like Figure 10 As shown, the lifting baffle 81 is provided with an anti-collision strip 84 on one side facing the tray 9. The anti-collision strip 84 is provided on the rear side of the vertical section and is made of a rubber strip or a rubber sheet and can be installed with the vertical section by screw connection or bonding.

[0084] like Figure 4 As shown, at least two telescopic positioning pins 82 are provided in each group of blocking positioning mechanisms 8. In this embodiment, two are provided. The positioning hole of the tray 9 is located at the bottom of the tray 9. The tray 9 is a rectangular opening shape. A positioning hole is provided at the diagonal bottom of each tray 9. The telescopic positioning pin 82 can be inserted into the positioning hole of the tray 9 from the bottom of the tray 9.

[0085] Specifically, in this embodiment, a positioning pin driving mechanism 80 is provided at the bottom of the battery conveying mechanism 4. Figure 10 As shown, the positioning pin driving mechanism 80 can be installed on the connecting frame 86, or a connecting frame can be provided separately and only used for installing the positioning pin driving mechanism 80.

[0086] like Figure 13As shown, the positioning pin drive mechanism 80 adopts a guide cylinder or a push rod motor, and the telescopic positioning pin 82 is vertically installed at the movable end of the positioning pin drive mechanism 80, which can drive the telescopic positioning pin 82 to extend and retract longitudinally to insert into the positioning hole at the bottom of the tray 9, thereby positioning the tray 9 and accurately removing nails or detecting. The top of the telescopic positioning pin 82 is conical.

[0087] Further, such as Figure 13 As shown, the movable end of the positioning pin driving mechanism 80 is provided with a sensor connecting plate 831 . The sensor connecting plate 831 can be formed by stamping and bending. The sensor 83 is mounted on the sensor connecting plate 831 .

[0088] In this embodiment, Figure 11 As shown, the nail pulling mechanism 6 first moves to the upper left half of the tray 9 to pull out the eight nails 21 on the left side. After pulling out the nails, it moves to the upper part of the blanking hopper 7 to drop the materials, and then moves to the upper right half of the tray 9, as shown in FIG. Figure 12 In the state shown, the eight glue nails 21 on the right are pulled out, and after the nails are pulled out, they are moved to the top of the blanking hopper 7 for blanking. After the nail pulling is completed, the battery conveying mechanism 4 drives the tray 9 to run to the lithium battery post-nail pulling detection mechanism 1. After running to the right position, the lithium battery post-nail pulling detection mechanism 1 detects the battery 2 after the nails are pulled out. If all the glue nails 21 are pulled out, the battery conveying mechanism 4 drives the tray 9 to continue to the next process; if there are glue nails 21 that have not been pulled out, they need to be manually removed or the battery conveying mechanism 4 drives the tray 9 back to the nail pulling station to re-perform the nail pulling operation to ensure that all the glue nails are pulled out before entering the next process.

[0089] like Figure 1 As shown, the battery conveying mechanism 4 is provided with a lithium battery post-nail removal detection mechanism 1, which is located downstream of the nail removal mechanism 6. The lithium battery post-nail removal detection mechanism 1 can detect whether the glue nails 21 on the battery 2 are removed.

[0090] Specifically, such as Figure 6 As shown, the lithium battery post-nail removal detection mechanism 1 includes a bracket 11, a lifting drive member 12, a lifting plate 13, a lifting trigger member 14, a trigger detection member 15, a lifting guide pair 16, and an alarm unit 17.

[0091] like Figure 6 As shown, a lifting drive member 12 is provided on the bracket 11, and the movable end of the lifting drive member 12 is connected to a lifting plate 13; a lifting trigger member 14 is vertically slidably provided on the lifting plate 13, and a trigger detection member 15 is also provided on the lifting plate 13; when the lifting trigger member 14 is raised relative to the lifting plate 13, the trigger detection member 15 can detect the lifting trigger member 14 and transmit the signal to the control unit, and the control unit can control the alarm unit to alarm.

[0092] In this embodiment, the control unit adopts PLC, which is an existing technology. The lifting drive 12 and the alarm unit 17 are both controlled by the control unit. The alarm unit 17 can display alarm information through sound, image, text, etc., for example, using an alarm, alarm light, buzzer or displaying the alarm information through a display screen.

[0093] Specifically, such as Figure 6 As shown, the bracket 11 includes two vertically arranged legs 111 and a fixing plate 112 mounted between the legs 111. The legs 111 have a right-angled U-shaped cross-section, and the fixing plate 112 is a rectangular plate-like structure. The legs 111 are fixed to both sides of the battery conveyor mechanism 4 to detect the conveyed batteries 2.

[0094] like Figure 6 As shown, the lifting drive member 12 is arranged on the fixed plate 112. The lifting drive member 12 adopts a cylinder or a push rod motor, and the lifting drive member 12 is vertically installed above the middle of the fixed plate 112, and its movable end passes through the fixed plate 112 downward.

[0095] like Figure 6 As shown, a lifting guide pair 16 is provided between the lifting plate 13 and the bracket 11. The lifting guide pair 16 employs a guide post and guide sleeve mechanism, a guide rail and slider mechanism, or a guide groove and slider mechanism. Specifically, when a guide post and guide sleeve mechanism is employed, four fixed plate guide sleeves 161 are arranged in a rectangular pattern on the fixed plate 112, and four guide posts 162 are vertically provided on the lifting plate 13. These guide posts 162 slidably engage with corresponding fixed plate guide sleeves 161.

[0096] When the guide rail slider guiding mechanism is adopted, two guide rails can be vertically set on the bracket 11, and a slider is set on the lifting plate 13. The slider and the guide rails are slidably matched to achieve the guiding purpose.

[0097] When the guide groove slider guide mechanism is adopted, a guide groove along the vertical direction, such as a dovetail groove, can be opened on the bracket 11, and a slider is provided on the lifting plate 13, and the slider is slidably installed in the guide groove.

[0098] like Figure 6 As shown, the lifting trigger members 14 are provided in a plurality and are distributed in an array on the lifting plate 13. The specific number of the lifting trigger members 14 is determined by the number of batteries 2 to be tested and the number of adhesive pins 21. In this embodiment, two rows and eight columns of 16 lifting trigger members 14 are provided.

[0099] Specifically, such as Figure 7 、 8As shown, a lifting column guide sleeve 131 is provided on the lifting plate 13, and the lifting trigger 14 includes a lifting column 141 vertically slidably installed on the lifting plate 13. The lifting column 141 is cylindrical and slides with the corresponding lifting column guide sleeve 131. A circular top block 142 is installed on the top of the lifting column 141 by screws, and the top block 142 is located above the lifting column guide sleeve 131.

[0100] like Figure 7 、 8 As shown, an elastic body 143 is provided between the lifting column 141 and the lifting plate 13 . The elastic body 143 can be a spring, a rubber sleeve, etc. The elastic body 143 can apply a downward force to the lifting column 141 .

[0101] Specifically, such as Figure 7 、 8 As shown, a circular connecting block 144 is mounted on the lower end of the lifting column 141 by screws, and the elastic body 143 is sleeved on the lifting column 141. The upper and lower ends of the elastic body 143 are respectively pressed against the bottom of the lifting column guide sleeve 131 of the lifting plate 13 and the top of the connecting block 144. The elastic body 143 has initial tension.

[0102] like Figure 7 、 8 As shown, a circular contact block 145 is mounted on the bottom of the connecting block 144 by screws, and the bottom surface of the contact block 145 is larger than the rubber nail 21 to be detected.

[0103] like Figure 6 As shown, the trigger detection element 15 utilizes a laser annunciator. The lifting plate 13 is provided with a connecting base 152, an L-shaped plate-like structure. A pair of slots are defined on the vertically extending edge of the connecting base 152, with the slots extending in the vertical direction. The connecting base 152 is mounted to the lifting plate 13 via screws passing through the slots. The laser annunciator is mounted on the top surface of the connecting base 152, and the slots allow for adjustment of the laser annunciator's height to accommodate detection requirements at varying heights. The center of the laser annunciator and the light beam 151 it transmits and receives are significantly higher than the plastic nails and are both located above the lifting plate 13. The plastic nails 21 are located below the lifting plate 13, significantly reducing the impact of slurry spraying on them.

[0104] like Figure 6 As shown, the laser signal device can transmit and receive light beams. When the lift trigger 14 is raised relative to the lift plate 13, it can block the light beam 151 emitted by the laser signal device. The number of laser signal devices is set according to actual needs. The light beam 151 can pass above several top blocks 142. In this embodiment, a laser signal device is installed on both sides of the four top blocks 142 at both ends of each row, and the light beam 151 can pass above the center of all four top blocks 142.

[0105] Further, such as Figure 6 、 7 As shown, in this embodiment, the diameter of the top block 142 is larger than the diameter of the glue nail 21, preferably larger than 1.5 times the diameter of the glue nail 21, so that the probability of the light beam 151 detecting the top block 142 is much greater than the probability of detecting the glue nail, and the detection is more reliable.

[0106] Working principle:

[0107] When the lithium battery nail pulling equipment of the present invention is actually used, the battery 2 moves with the battery conveying mechanism 4 to realize the conveying and movement of the battery. The battery 2 stops when it moves to the nail pulling station, and the horizontal driving mechanism 5 drives the nail pulling mechanism 6 to move to above the battery 2 at the nail pulling station. The nail pulling mechanism 6 works to pull out the glue nails on the battery 2, and the nail pulling mechanism 6 can pull out several glue nails 21 at a time. Subsequently, the battery 2 after nail pulling continues to move with the battery conveying mechanism 4 until it moves to the inspection station. After the lithium battery is nailed out at the inspection station, the inspection mechanism 1 detects whether the glue nails 21 on the battery 2 are pulled out, so as to avoid the battery flowing into the next station due to incomplete removal of the glue nails, which may cause the battery to be scrapped. Compared with the existing technology, the nail pulling equipment has a higher overall nail pulling efficiency, and can also detect whether the glue nails are pulled out, so as to avoid the battery flowing into the next station, which may cause the battery to be scrapped.

[0108] In actual operation, the connecting frame driving mechanism 63 drives the lower connecting frame 62 to descend, and the nail clamping member 64 opens to clamp the corresponding nail. After clamping, the lower connecting frame 62 rises to pull out the nail. The operation is simple and reliable.

[0109] When the nail pulling mechanism 6 carries the pulled out plastic nails and moves to the drop hopper 7, the plastic nails can be pulled out under the action of the scraper 71. When the nail pulling mechanism 6 returns from the drop hopper 7, it can be pulled out a second time to ensure that the plastic nails can be completely separated from the nail pulling mechanism 6, so that the plastic nails can be collected.

[0110] When the tray detection part 85 detects that the tray 9 is about to enter the nail pulling station or the inspection station, the control unit can control the lifting baffle 81 to rise and stand by to prevent it from flowing downstream. Subsequently, when the sensor 83 senses that the tray 9 has moved to the bottom of the nail pulling mechanism 6 or the bottom of the lithium battery nail pulling detection mechanism 1, it means that the tray 9 has moved into place. At this time, the control unit controls the telescopic positioning pin 82 to extend and insert into the positioning hole of the tray 9 to position it for nail pulling or inspection, and the positioning accuracy is high.

[0111] After the nail removal process, the lifting drive 12 drives the lifting plate 13 downward. If there are any unremoved or tilted nails 21 on the battery 2, as the lifting plate 13 descends, the nails 21 will block the descent of the lifting trigger 14. That is, the lifting trigger 14 rises relative to the lifting plate 13. The trigger detection member 15 detects the lifting trigger 14 and transmits a signal to the control unit. The control unit controls the alarm unit 17 to sound an alarm, indicating that the nails 21 are not removed. The operator can then further process the unremoved nails 21 to prevent the battery 2 from flowing into the next process and causing product scrapping. The overall structure is simple, sensitive and reliable, and can achieve automatic nail detection.

[0112] The arrangement of the elastic body 143 can ensure that the lifting column 141 can be smoothly reset after leaving the plastic nail 21 after being lifted up, so as to prepare for the next detection, and the action is reliable.

[0113] The bottom surface of the contact block 145 is set to be larger than the glue nail 21 to be detected, which expands the detection range of the contact block 145 and makes it easier to press on the glue nail 21 that has not been pulled out. When a deviation occurs and causes the contact block 145 to deviate from the center of the glue nail 21, the larger contact block 145 can also detect the glue nail 21, thereby improving the reliability of the detection.

[0114] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A lithium battery nail removal device, comprising a frame (3), a battery conveying mechanism (4) provided on the frame (3), and a battery (2) placed on the battery conveying mechanism (4); characterized in that: The battery conveying mechanism is used to convey batteries. A tray is placed on the battery conveying mechanism, and the batteries are placed in the tray. The tray is provided with positioning holes. The battery conveying mechanism is defined with a nail removal station and a detection station; The battery conveying mechanism is equipped with two sets of blocking and positioning mechanisms, one at the nail pulling station and the other at the inspection station. Each blocking and positioning mechanism includes a lifting baffle, a telescopic positioning pin, a sensor, and a tray detection component. When a tray is about to enter the nail pulling station / inspection station, it can be detected by the tray detection component, and then the lifting baffle rises to prevent the tray from flowing downstream. After the sensor senses that the tray has moved to the nail pulling station / inspection station, the telescopic positioning pin can be inserted into the positioning hole of the tray for positioning, so as to facilitate nail pulling / inspection. A horizontal driving mechanism (5) is provided on the frame (3), and a nail pulling mechanism (6) is provided at the movable end of the horizontal driving mechanism (5). The nail pulling mechanism can slide on the horizontal driving mechanism to above the nail pulling station, and the nail pulling mechanism (6) can pull out a plurality of plastic nails (21) at a time. The battery conveying mechanism (4) is provided with a lithium battery post-nail removal detection mechanism (1), which is located above the detection station and downstream of the nail removal mechanism (6). The lithium battery post-nail removal detection mechanism (1) can detect whether the plastic nails (21) on the battery (2) are removed. When the lithium battery post-nail removal detection mechanism detects that there are plastic nails that have not been removed, the battery conveying mechanism can drive the tray back to perform the nail removal operation again. The device further comprises a control unit. The lithium battery post-nail removal detection mechanism (1) comprises a bracket (11) and an alarm unit (17). A lifting drive member (12) is provided on the bracket (11). The movable end of the lifting drive member (12) is connected to a lifting plate (13). A lifting trigger member (14) is vertically slidably provided on the lifting plate (13), and a trigger detection member (15) is also provided on the lifting plate (13); When the lifting trigger member (14) is lifted relative to the lifting plate (13), the trigger detection member (15) can detect the lifting trigger member (14) and transmit a signal to the control unit, and the control unit can control the alarm unit (17) to sound an alarm.

2. The lithium battery nail removal device according to claim 1, characterized in that: The nail pulling mechanism (6) comprises an upper connecting frame (61), a lower connecting frame (62) is vertically slidably mounted on the upper connecting frame (61), and a connecting frame driving mechanism (63) capable of driving the lower connecting frame (62) to rise and fall is further provided on the upper connecting frame (61); A plurality of plastic nail clamping members (64) are provided on the lower connecting frame (62).

3. The lithium battery nail removal device according to claim 1, characterized in that: The frame (3) is further provided with a drop hopper (7), and a scraper (71) is provided in the drop hopper (7); The horizontal driving mechanism (5) can drive the nail pulling mechanism (6) to move above the drop hopper (7), and the scraper (71) can remove the glue nails (21) on the nail pulling mechanism (6).

4. The lithium battery nail removal device according to claim 1, characterized in that: Also included is a control unit; The tray detection member (85) can detect the passage of the tray (9), the control unit can control the lifting baffle (81) to rise and block the tray (9), the sensor (83) can sense that the tray (9) moves to the bottom of the nail pulling mechanism (6) or the bottom of the lithium battery nail pulling detection mechanism (1), and the control unit can control the telescopic positioning pin (82) to extend and insert into the positioning hole of the tray (9) to position it.

5. The lithium battery nail removal device according to claim 4, characterized in that: An anti-collision strip (84) is provided on the side of the lifting baffle (81) facing the tray (9).

6. The lithium battery nail removal device according to claim 4, characterized in that: At least two telescopic positioning pins (82) are provided in each group of blocking positioning mechanisms (8), the positioning hole of the tray (9) is located at the bottom of the tray (9), and the telescopic positioning pins (82) can be inserted into the positioning hole of the tray (9) from the bottom of the tray (9).

7. The lithium battery nail removal device according to claim 1, characterized in that: The lifting trigger (14) comprises a lifting column (141) vertically slidably mounted on the lifting plate (13), and a top block (142) is provided at the top of the lifting column (141); An elastic body (143) is provided between the lifting column (141) and the lifting plate (13), and the elastic body (143) is capable of applying a downward force to the lifting column (141).

8. The lithium battery nail removal device according to claim 7, characterized in that: The lower end of the lifting column (141) is provided with a connecting block (144), the elastic body (143) is sleeved on the lifting column (141), and the upper and lower ends of the elastic body (143) are respectively pressed against the bottom of the lifting plate (13) and the top of the connecting block (144); A contact block (145) is provided at the bottom of the connecting block (144), and the bottom surface of the contact block (145) is larger than the rubber nail (21) to be detected.

9. The lithium battery nail removal device according to claim 1, characterized in that: The trigger detection member (15) adopts a laser signal device, and when the lifting trigger member (14) is lifted relative to the lifting plate (13), it can block the light beam (151) emitted by the laser signal device.

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