A button battery shell preparation method and punching device

Abstract

The present invention proposes a method for preparing a button-type battery shell and a stamping device thereof. The stamping device for preparing the button-type battery shell includes a stamping forming component, a sandblasting component, an electroplating component, and a material separation group. The present invention introduces the steel strip into the sandblasting component after being stamped and formed by the stamping forming component, and the surface of the formed steel strip is sandblasted by a sandblasting gun. The first motor drives the first screw rod, thereby driving a pair of sandblasting guns to reciprocate under the guidance of the first sliding shaft, thereby comprehensively sandblasting the surface of the battery shell workpiece formed on the steel strip, and by controlling the extension of the telescopic rod of the first hydraulic telescopic rod, the lifting bracket and the steel strip transported by the lifting bracket are lowered until the steel strip is immersed in the electroplating liquid in the electroplating box, thereby realizing the surface electroplating of the battery shell workpiece.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, and in particular to a method for preparing a button-type battery shell and a stamping device thereof. Background Art

[0002] In the processing of button battery shells, it is often necessary to use stamping equipment to stamp and form raw materials such as metal iron to prepare battery shells. External force is applied to plates, strips, pipes and profiles through presses and molds to make them plastically deformed into the shape of battery shells. The traditional stamping equipment for battery shell production is inconvenient to perform surface pretreatment on the workpiece, which affects the quality of the finished product of the battery shell. For example, application number CN202220364829.X discloses a stamping equipment for battery shell production that can perform surface pretreatment. The lower and upper coating rollers can apply stretching oil to the surface of the workpiece to complete the pretreatment of the workpiece. It is used to solve the problems of burring and straining of the workpiece during the stamping process. In addition, the processing process of traditional button battery shells usually only electroplates the raw material steel strip of the battery shell, and the improvement of the surface quality of the battery shell is low. A stamping device and its preparation method that can also improve the surface quality of the battery shell during the stamping process of the button battery shell are needed. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a button-type battery case preparation method and a stamping device thereof to more accurately solve the above problems.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes a stamping device for preparing button-type battery shells, including a stamping and forming component, a sandblasting component, an electroplating component and a material separation component, wherein the stamping and forming component includes a stamping and forming table, a first upper die support is provided on one side of the stamping and forming table, a first upper die drive is provided on the top of the first upper die support, a forming upper die is connected to the bottom of the first upper die drive, a forming lower die is provided on the stamping and forming table and at a position corresponding to the forming upper die, a first pressing sheet is provided at the bottom of the forming upper die, and the first pressing sheet is connected to the forming upper die through a plurality of groups of first pressing sheet springs, and the sandblasting component includes a sandblasting A workbench, a sand and pill collecting chamber is provided at the bottom of the sandblasting workbench, two pairs of sandblasting gun brackets are provided on the sandblasting workbench, a first sliding shaft and a first screw rod are respectively connected between the two pairs of sandblasting gun brackets, and a sandblasting gun is connected to the first sliding shaft and the first screw rod, the electroplating assembly includes an electroplating box, a lifting bracket is provided at the upper port of the electroplating box, and guide wheel groups for guiding the steel strip forward are provided on the inner sides of the two side brackets of the lifting bracket, and second side guide wheel groups for limiting rolling contact on both sides of the steel strip are provided above the two side brackets of the lifting bracket, and the upper cover of the electroplating box is provided with a There is an electroplating box cover, and a plurality of groups of first hydraulic telescopic rods are arranged on the top of the electroplating box cover. The telescopic rods of the first hydraulic telescopic rods extend vertically downward and are connected to the lifting bracket. The cutting separation component includes a cutting machine platform, a second upper mold bracket is arranged on one side of the cutting machine platform, a second upper mold drive is arranged on the top of the second upper mold bracket, and a cutting upper mold is connected to the bottom of the second upper mold drive. A cutting lower mold is arranged on the cutting machine platform and at a position corresponding to the cutting upper mold. A cutting tool for cutting is arranged at the bottom of the cutting upper mold, and a cutting tool for blanking is arranged on the cutting lower mold and at a position corresponding to the cutting tool. A blanking hole is provided, a second pressing plate is provided at the bottom of the upper die of the material cutting, and the second pressing plate is connected to the upper die of the material cutting through several groups of second pressing plate springs. A finished product conveyor belt is provided at the bottom of the material cutting machine, and a material guide inclined plate is provided at the bottom of the material cutting machine and corresponding to the position of the lower die of the material cutting. The material guide inclined plate extends downward at an angle of 45° to the finished product conveyor belt. Feeding belts for guiding steel strips are provided on both sides of the table tops of the stamping and forming table, the sandblasting workbench and the material cutting machine. The first side guide wheel group for limiting rolling contact on both sides of the steel strip is provided on the brackets on both sides of the stamping and forming table, the sandblasting workbench and the material cutting machine.

[0006] Furthermore, a connecting seat is provided on one side of the sandblasting gun, wherein the connecting seat of one sandblasting gun is slidably connected with the first sliding shaft, and the connecting seat of the other sandblasting gun is screwed with the first screw rod, and the two sandblasting guns are connected by a sandblasting gun connecting rod, and a first motor is provided on the outside of the sandblasting gun bracket corresponding to the first screw rod, and the first motor is transmission-connected with one end of the first screw rod, and the two sandblasting guns are obliquely and symmetrically arranged, and the inclination angle of the sandblasting gun is 60-75° downward.

[0007] Furthermore, a pair of cleaning roller brackets are provided on one side of the sandblasting workbench, a cleaning roller is connected between the two cleaning roller brackets, a second motor is provided on the outer side of the cleaning roller bracket, and the output shaft of the second motor is transmission-connected to one end of the cleaning roller.

[0008] Furthermore, a sandblasting chamber outer cover is provided on the top of the sandblasting workbench, and a pair of side sliding doors are provided on one side of the sandblasting chamber outer cover, and an observation window is provided on the side sliding door.

[0009] Furthermore, a plurality of lifting guide rods are provided at the bottom of the inner cavity of the electroplating box, the telescopic guides of the lifting guide rods are in a vertical direction, and the upper ends of the lifting guide rods are connected to the bottom of the lifting bracket.

[0010] Furthermore, a second sliding shaft and a second screw rod arranged in parallel are connected to the inner side wall of the electroplating box cover, and a second hydraulic telescopic rod is connected to the second sliding shaft and the second screw rod. The telescopic rod portion of the second hydraulic telescopic rod extends vertically downward, and an electromagnet is provided at the lower end of the telescopic rod of the second hydraulic telescopic rod. A connecting seat is provided on one side of the second hydraulic telescopic rod, and the connecting seat is slidably connected with the second sliding shaft, and the connecting seat is screwed with the second screw rod. A third motor is provided on one side of the inner wall of the electroplating box cover, and the output shaft of the third motor is transmission-connected to one end of the second screw rod.

[0011] Furthermore, a wind knife is provided on one side of the outer cover of the electroplating box, and the blowing direction of the wind knife is set at an angle of 30-45 degrees downward.

[0012] Furthermore, an air guide channel connected to the top of each cutting tool is opened inside the cutting upper mold, and an air supply device is provided on one side of the cutting machine, and the air supply device is connected to the air guide channel through an air guide pipe.

[0013] A method for preparing a stamping device used in preparing the button battery shell comprises the following steps:

[0014] Step 1: stamping and forming: the steel strip is transported into the work station by the feeding belt provided on the stamping and forming table, and the upper forming die is driven down to cooperate with the lower forming die by controlling the driving work of the first upper die, so as to stamp and form the shape of the button battery shell on the steel strip;

[0015] Step 2: sandblasting the workpiece surface: the steel strip after stamping and forming by the stamping and forming assembly enters the sandblasting workbench under the conveyance of the feeding belt, and the surface of the formed steel strip is sandblasted by the sandblasting gun. The first motor drives the first screw rod, thereby driving a pair of sandblasting guns to reciprocate along the guide of the first sliding shaft, thereby comprehensively sandblasting the surface of the battery shell workpiece formed on the steel strip;

[0016] Step 3: electroplating of the workpiece surface: the steel strip is transported by the feeding belt, and combined with the adsorption of the steel strip by the electromagnet inside the electroplating component, the third motor drives the second screw rod, drives the second hydraulic telescopic rod to move horizontally along the guide of the second sliding shaft, and combined with the lifting of the second hydraulic telescopic rod, the steel strip is pulled onto the lifting bracket, and the lifting bracket and the steel strip transported on the lifting bracket are lowered by controlling the extension of the telescopic rod of the first hydraulic telescopic rod until the steel strip is immersed in the electroplating solution in the electroplating box, thereby realizing the surface electroplating of the battery shell workpiece;

[0017] Step 4: Workpiece cutting and separation: The steel strip is introduced into the workstation of the cutting machine under the transportation of the feeding belt. The upper cutting die is driven to descend and cooperate with the lower cutting die by controlling the driving work of the second upper die. The battery shell molded parts are cut by the cutting tool at the bottom of the upper cutting die. After cutting, the battery shell workpiece falls along the blanking hole on the lower cutting die and is sent to the finished product conveyor belt under the guide of the guide inclined plate. The battery shell workpiece is led out and collected by the finished product conveyor belt, and the gas is supplied by the gas supply equipment so that the gas is introduced into the gas guide channel through the gas guide pipe and sprayed along the blade of the cutting tool to ensure complete material removal.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention introduces the steel strip into the sandblasting assembly after being stamped by the stamping forming assembly, and uses a sandblasting gun to sandblast the surface of the formed steel strip to remove impurities and burrs of the battery shell, enhance the strength and density of the battery shell, make the shell surface cleaner and tidier, and increase the roughness of the battery shell surface, thereby improving the adhesion of the electroplating layer in the next electroplating process. In addition, through the sandblasting process, the thermal conductivity of the battery shell surface can be optimized, which helps the battery to dissipate heat more effectively during operation. The first motor drives the first screw rod, thereby driving a pair of sandblasting guns to reciprocate under the guidance of the first sliding shaft, thereby comprehensively sandblasting the surface of the battery shell workpiece formed on the steel strip. The two sandblasting guns are obliquely and symmetrically arranged, and the inclination angle of the sandblasting guns is 60-75° downward, so that the side surface of the convex part of the battery shell workpiece can be sandblasted to ensure the comprehensiveness of the sandblasting;

[0020] 2. After the stamped steel strip is introduced onto the lifting bracket, the lifting bracket and the steel strip transported on the lifting bracket are lowered by controlling the extension of the telescopic rod of the first hydraulic telescopic rod until the steel strip is immersed in the electroplating liquid in the electroplating box, thereby achieving surface electroplating of the battery shell workpiece, so as to meet the subsequent stamping deformation of the cylindrical power battery shell and the harsh service environment and long life requirements, and at the same time make the appearance more eye-catching;

[0021] 3. The present invention controls the driving work of the second upper mold to drive the upper mold to descend and cooperate with the lower mold. The battery shell molded parts are cut by the cutting tool at the bottom of the upper mold. After cutting, the battery shell workpiece falls along the drop hole on the lower mold and is sent to the finished product conveyor belt under the guide of the guide inclined plate. The battery shell workpiece is guided out and collected by the finished product conveyor belt, and the gas is supplied by the gas supply equipment to make the gas pass through the gas guide pipe into the gas guide channel and sprayed along the blade of the cutting tool to ensure complete material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a partial schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the stamping forming component in the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the sandblasting assembly in the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the electroplating assembly in the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the material separation component of the present invention;

[0028] Figure 7 It is a front cross-sectional view of the structure of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0030] In the figure: 1. stamping and forming assembly; 101. stamping and forming table; 102. first upper die support; 103. first upper die drive; 104. forming upper die; 1041. first pressing plate; 1042. first pressing plate spring; 105. forming lower die; 2. sandblasting assembly; 201. sandblasting workbench; 202. sand pill collecting chamber; 203. sandblasting gun support; 2031. first sliding shaft; 2032. first screw rod; 2033. first motor; 204. sandblasting gun; 2041. sandblasting gun connecting rod; 205. cleaning roller support; 2051. cleaning roller; 2052. second motor; 206. sandblasting chamber cover; 3. electroplating assembly; 301. electroplating box; 302. lifting bracket; 3021. second side guide wheel group; 3022. guide wheel group; 3 03. First hydraulic telescopic rod; 3031. Lifting guide rod; 304. Second sliding shaft; 3041. Second screw rod; 3042. Third motor; 305. Second hydraulic telescopic rod; 306. Electromagnet; 307. Air knife; 308. Electroplating box cover; 4. Cutting separation assembly; 401. Cutting machine; 402. Second upper die bracket; 403. Second upper die drive; 404. Cutting upper die; 4041. Second pressing plate; 4042. Second pressing plate spring; 4043. Cutting tool; 4044. Air guide channel; 405. Cutting lower die; 4051. Blanking hole; 406. Finished product conveyor belt; 4061. Material guide inclined plate; 407. Air supply equipment; 4071. Air guide pipe; 5. Feeding belt; 501. First side guide wheel group. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] A method for preparing a button battery shell and a punching device thereof, comprising a punching and forming component 1, a sandblasting component 2, an electroplating component 3 and a material separation component 4. A steel strip is punched into a battery workpiece and sequentially processed through the punching and forming component 1, the sandblasting component 2, the electroplating component 3 and the material separation component 4. Figure 1 and Figure 3As shown, the stamping and forming assembly 1 includes a stamping and forming table 101, a first upper mold support 102 is provided on one side of the stamping and forming table 101, a first upper mold drive 103 is provided on the top of the first upper mold support 102, a forming upper mold 104 is connected to the bottom of the first upper mold drive 103, and a forming lower mold 105 is provided on the stamping and forming table 101 and at a position corresponding to the forming upper mold 104. When the steel strip passes over the stamping and forming table 101, the first upper mold drive 103 is controlled to work to drive the forming upper mold 104 to descend and cooperate with the forming lower mold 105, so as to stamp out the shape of the button type battery shell on the steel strip.

[0034] It is worth mentioning that Figure 3 As shown, feeding belts 5 for guiding steel strips are provided on both sides of the table surface of the stamping and forming table 101, which are used for guiding the steel strips. The brackets on both sides of the stamping and forming table 101 are provided with first side guide wheel groups 501 for limiting rolling contact on both sides of the steel strips. Lateral limiting is performed during the movement of the steel strips to improve the accuracy of stamping positioning. A first pressing plate 1041 is provided at the bottom of the forming upper mold 104, and the first pressing plate 1041 is connected to the forming upper mold 104 through several groups of first pressing plate springs 1042. During the downward stamping process of the forming upper mold 104, the first pressing plate 1041 is pre-contacted with the steel strip to perform auxiliary positioning during the stamping and forming process to improve the forming accuracy.

[0035] Combination Figure 2 and Figure 4 As shown, the sandblasting assembly 2 includes a sandblasting workbench 201, on which two pairs of sandblasting gun brackets 203 are arranged, and the two pairs of sandblasting gun brackets 203 are respectively connected with a first sliding shaft 2031 and a first screw rod 2032 arranged in parallel, and the first sliding shaft 2031 and the first screw rod 2032 are each connected with a sandblasting gun 204, and the sandblasting gun 204 is used to connect the sand shot supply system, and the sandblasting gun 204 is used to sandblast the surface of the formed steel strip to remove impurities and burrs of the battery shell, enhance the strength and density of the battery shell, make the shell surface cleaner and tidier, and increase the roughness of the battery shell surface, thereby improving the adhesion of the electroplating layer in the next electroplating process. In addition, through sandblasting, the thermal conductivity of the battery shell surface can be optimized, which helps the battery to dissipate heat more effectively during operation. A sand shot collection chamber 202 is provided at the bottom of the sandblasting workbench 201 for collecting sand shots.

[0036] It is worth mentioning that Figure 4As shown, a connecting seat is provided on one side of the sandblasting gun 204, wherein the connecting seat of one sandblasting gun 204 is slidably connected with the first sliding shaft 2031, and the connecting seat of the other sandblasting gun 204 is screwed with the first screw rod 2032, and the two sandblasting guns 204 are connected through a sandblasting gun connecting rod 2041, and a first motor 2033 is provided on the outer side of the sandblasting gun bracket 203 corresponding to the first screw rod 2032, and the first motor 2033 is transmission-connected with one end of the first screw rod 2032, and the first motor 2033 is transmission-connected with one end of the first screw rod 2032, and the first motor 2033 is transmission-connected with the first screw rod 2032. The machine 2033 drives the first screw rod 2032, thereby driving a pair of sandblasting guns 204 to reciprocate along the guidance of the first sliding shaft 2031, so as to comprehensively sandblast the surface of the battery shell workpiece formed on the steel belt. Since the formed battery shell workpiece is convex, the two sandblasting guns 204 are obliquely and symmetrically arranged, and the inclination angle of the sandblasting gun 204 is 60-75° obliquely downward, so that the side surface of the convex part of the battery shell workpiece can be sandblasted to ensure the comprehensiveness of the sandblasting. A pair of cleaning roller brackets 205 are provided on one side of the sandblasting workbench 201, a cleaning roller 2051 is connected between the two cleaning roller brackets 205, a second motor 2052 is provided on the outer side of the cleaning roller bracket 205, and the output shaft of the second motor 2052 is transmission-connected to one end of the cleaning roller 2051. When the second motor 2052 drives the cleaning roller 2051, the cleaning roller 2051 cleans the sand and pills remaining on the steel belt into the sand and pills collecting chamber 202.

[0037] Combination Figure 1 and Figure 4 As shown, a sandblasting chamber cover 206 is provided on the top of the sandblasting workbench 201 to prevent sand shots from splashing out during the sandblasting process, and a pair of side sliding doors are provided on one side of the sandblasting chamber cover 206, and an observation window is provided on the side sliding door to observe the sandblasting process, and feeding belts 5 for guiding steel strips are provided on both sides of the table of the sandblasting workbench 201 for guiding the steel strips, and the first side guide wheel groups 501 for limiting rolling contact on both sides of the steel strips are provided on the brackets on both sides of the sandblasting workbench 201, which are used for lateral limiting during the movement of the steel strips to improve the accuracy of stamping positioning.

[0038] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: in the present invention, after the steel strip is stamped and formed by the stamping and forming component 1, it is introduced into the sandblasting component 2, and the surface of the formed steel strip is sandblasted by the sandblasting gun 204. The first motor 2033 drives the first screw rod 2032, thereby driving a pair of sandblasting guns 204 to reciprocate along the guidance of the first sliding shaft 2031, so as to comprehensively sandblast the surface of the battery shell workpiece formed on the steel strip. The two sandblasting guns 204 are obliquely and symmetrically arranged, and the inclination angle of the sandblasting gun 204 is obliquely downward by 60-75°, so that the side surface of the raised part of the battery shell workpiece can be sandblasted to ensure the comprehensiveness of the sandblasting.

[0039] Example 2

[0040] Combination Figure 1 , Figure 5 and Figure 7 As shown, the electroplating assembly 3 includes an electroplating box 301, a lifting bracket 302 is provided at the upper end of the electroplating box 301, and the inner sides of the two side brackets of the lifting bracket 302 are provided with a guide wheel group 3022 for guiding the steel strip forward, and the upper sides of the two side brackets of the lifting bracket 302 are provided with a second side guide wheel group 3021 for limiting the rolling contact on both sides of the steel strip, and the upper cover of the electroplating box 301 is provided with an electroplating box outer cover 308, and the top of the electroplating box outer cover 308 is provided with a plurality of first hydraulic telescopic rods 303, and the telescopic rods of the first hydraulic telescopic rods 303 extend vertically downward and are connected to the lifting bracket 302. By controlling the first The telescopic rod of a hydraulic telescopic rod 303 is extended, causing the lifting bracket 302 and the steel belt transported on the lifting bracket 302 to descend until the steel belt is immersed in the electroplating liquid in the electroplating box 301, thereby realizing the surface electroplating of the battery shell workpiece to meet the subsequent stamping deformation of the cylindrical power battery shell and the harsh service environment and long life requirements. A plurality of lifting guide rods 3031 are provided at the bottom of the inner cavity of the electroplating box 301. The telescopic guide of the lifting guide rod 3031 is in a vertical direction, and the upper end of the lifting guide rod 3031 is connected to the bottom of the lifting bracket 302, which is used for guiding the lifting bracket 302 when it is lifted or lowered.

[0041] Combination Figure 5 and Figure 7 As shown, the inner side wall of the electroplating box cover 308 is connected with a second sliding shaft 304 and a second screw rod 3041 arranged in parallel, and the second sliding shaft 304 and the second screw rod 3041 are connected with a second hydraulic telescopic rod 305, the telescopic rod portion of the second hydraulic telescopic rod 305 extends vertically downward, and an electromagnet 306 is provided at the lower end of the telescopic rod of the second hydraulic telescopic rod 305, and a connecting seat is provided on one side of the second hydraulic telescopic rod 305, and the connecting seat is slidably connected with the second sliding shaft 304, and the connecting seat is slidably connected with the second screw rod 3041. 041 is screwed, a third motor 3042 is provided on one side of the inner wall of the electroplating box cover 308, and the output shaft of the third motor 3042 is transmission-connected with one end of the second screw rod 3041, and the third motor 3042 drives the second screw rod 3041 to drive the second hydraulic telescopic rod 305 to move laterally along the guide of the second sliding shaft 304, and the lifting and lowering of the second hydraulic telescopic rod 305 makes the electromagnet 306 adsorb on the steel strip, thereby driving the steel strip to move, and realizing the feeding and discharging of the steel strip in the electroplating assembly 3. A wind knife 307 is provided on one side of the electroplating box cover 308, and the blowing direction of the wind knife 307 is set at an angle of 30-45 degrees downward, and the wind knife 307 blows warm air to dry the electroplating layer on the surface of the battery shell forming workpiece on the steel strip.

[0042] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: after the present invention introduces the stamped steel strip onto the lifting bracket 302, the lifting bracket 302 and the steel strip transported on the lifting bracket 302 are lowered by controlling the extension of the telescopic rod of the first hydraulic telescopic rod 303 until the steel strip is immersed in the electroplating liquid in the electroplating box 301, thereby realizing the surface electroplating of the battery shell workpiece, so as to meet the subsequent stamping deformation of the cylindrical power battery shell and the harsh service environment and long life requirements, while making the appearance more eye-catching.

[0043] Example 3

[0044] Combined with the diagram, Figure 7 and Figure 8 As shown, the material cutting and separation component 4 includes a material cutting machine 401, a second upper mold bracket 402 is provided on one side of the material cutting machine 401, a second upper mold drive 403 is provided on the top of the second upper mold bracket 402, and a material cutting upper mold 404 is connected to the bottom of the second upper mold drive 403, a material cutting lower mold 405 is provided on the material cutting machine 401 and corresponding to the position of the material cutting upper mold 404, a material cutting tool 4043 is provided at the bottom of the material cutting upper mold 404, a material cutting hole 4051 for material cutting is provided on the lower mold 405 and corresponding to the position of the material cutting tool 4043, a finished product conveyor belt 406 is provided at the bottom of the material cutting machine 401, and a material guide inclined plate 4061 is provided at the bottom of the material cutting machine 401 and corresponding to the position of the material cutting lower mold 405, and the material guide inclined plate 4061 extends downward at an angle of 45° to the finished product conveyor belt 406. By controlling the second upper die drive 403 to drive the upper die 404 to descend and cooperate with the lower die 405, the cutting tool 4043 at the bottom of the upper die 404 cuts the battery shell molded parts. After cutting, the battery shell workpiece falls along the drop hole 4051 on the lower die 405, and is sent to the finished product conveyor belt 406 under the guide of the guide inclined plate 4061, and the battery shell workpiece is led out and collected by the finished product conveyor belt 406. The bottom of the upper die 404 is provided with a second pressing sheet 4041, and the second pressing sheet 4041 is connected to the upper die 404 through a plurality of groups of second pressing sheet springs 4042. During the downward stamping process of the upper die 404, the second pressing sheet 4041 is pre-contacted with the steel belt, and auxiliary positioning is performed during the cutting process to improve the forming accuracy.

[0045] It is worth mentioning that an air guide channel 4044 connected to the top of each cutting tool 4043 is provided inside the cutting upper die 404, and an air supply device 407 is provided on one side of the cutting machine 401, and the air supply device 407 is connected to the air guide channel 4044 through an air guide pipe 4071. The air supply device 407 is used to supply air, so that the gas is introduced into the air guide channel 4044 through the air guide pipe 4071 and sprayed along the blade of the cutting tool 4043 to ensure complete material removal. Feeding belts 5 for guiding steel strips are provided on both sides of the table of the cutting machine 401 for guiding the steel strips. The first side guide wheel group 501 for limiting the rolling contact on both sides of the steel strip is provided on the brackets on both sides of the cutting machine 401, which performs lateral limiting during the movement of the steel strip to improve the accuracy of stamping positioning.

[0046] The technical scheme in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: the present invention controls the second upper mold drive 403 to drive the cutting upper mold 404 to descend and cooperate with the cutting lower mold 405, and the cutting tool 4043 at the bottom of the cutting upper mold 404 cuts the battery shell molded parts. After cutting, the battery shell workpiece falls along the drop hole 4051 on the cutting lower mold 405, and is sent to the finished product conveyor belt 406 under the guide of the guide inclined plate 4061. The battery shell workpiece is guided out and collected by the finished product conveyor belt 406, and the gas is supplied by the gas supply equipment 407, so that the gas is introduced into the gas guide channel 4044 through the gas guide pipe 4071, and is sprayed along the blade of the cutting tool 4043 to ensure complete material removal.

[0047] A method for preparing a punching device for preparing a button battery shell comprises the following steps:

[0048] Step 1: stamping and forming: the steel strip enters the workstation through the conveying belt 5 provided on the stamping and forming table 101, and the forming upper die 104 is driven down to cooperate with the forming lower die 105 by controlling the first upper die drive 103 to stamp and form the shape of the button battery shell on the steel strip;

[0049] Step 2: Sandblasting the workpiece surface: The steel strip after being stamped and formed by the stamping and forming assembly 1 enters the sandblasting workbench 201 under the transportation of the feeding belt 5, and the sandblasting gun 204 sandblasts the surface of the formed steel strip. The first motor 2033 drives the first screw rod 2032, thereby driving a pair of sandblasting guns 204 to reciprocate under the guidance of the first sliding shaft 2031, so as to comprehensively sandblast the surface of the battery shell workpiece formed on the steel strip;

[0050] Step 3: electroplating of the workpiece surface: the steel strip is transported by the feeding belt 5 and combined with the adsorption of the steel strip by the electromagnet 306 inside the electroplating component 3, the third motor 3042 drives the second screw rod 3041, drives the second hydraulic telescopic rod 305 to move horizontally along the guide of the second sliding shaft 304, and combined with the lifting and lowering of the second hydraulic telescopic rod 305, the steel strip is pulled onto the lifting bracket 302, and the lifting bracket 302 and the steel strip transported on the lifting bracket 302 are lowered by controlling the extension of the telescopic rod of the first hydraulic telescopic rod 303 until the steel strip is immersed in the electroplating solution in the electroplating box 301, so as to achieve surface electroplating of the battery shell workpiece;

[0051] Step 4: Workpiece cutting and separation: The steel strip is introduced into the workstation of the cutting machine 401 under the transportation of the feeding belt 5. The upper cutting die 404 is driven to descend and cooperate with the lower cutting die 405 by controlling the second upper die drive 403. The battery shell molded parts are cut by the cutting tool 4043 at the bottom of the upper cutting die 404. After cutting, the battery shell workpiece falls along the drop hole 4051 on the lower cutting die 405, and is sent to the finished product conveyor belt 406 under the guide of the guide inclined plate 4061. The battery shell workpiece is led out and collected by the finished product conveyor belt 406, and gas is supplied by the gas supply equipment 407, so that the gas is introduced into the gas guide channel 4044 through the gas guide pipe 4071, and is sprayed along the blade of the cutting tool 4043 to ensure complete material removal.

[0052] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A punching device for preparing a button-type battery case, comprising a punching and forming component (1), a sandblasting component (2), an electroplating component (3) and a cutting and separating component (4), characterized in that: The stamping and forming component (1), the sandblasting component (2), the electroplating component (3) and the material separation component (4) are arranged in sequence from left to right. The sandblasting component (2) comprises a sandblasting workbench (201). A sand and pellet collecting chamber (202) is provided at the bottom of the sandblasting workbench (201). Two pairs of sandblasting gun brackets (203) are provided on the sandblasting workbench (201). A first sliding shaft (2031) and a first screw rod (2032) arranged in parallel are respectively connected between the two pairs of sandblasting gun brackets (203). A sandblasting gun (204) is connected to each of the first sliding shaft (2031) and the first screw rod (2032). A connecting seat is provided on one side of the sandblasting gun (204). One of the sandblasting guns (204) is provided with a connecting seat. The connecting seat of one of the sandblasting guns (204) is slidably connected with the first sliding shaft (2031), the connecting seat of the other sandblasting gun (204) is screwed with the first screw rod (2032), the two sandblasting guns (204) are connected via a sandblasting gun connecting rod (2041), a first motor (2033) is provided on the outer side of the sandblasting gun bracket (203) corresponding to the first screw rod (2032), and the first motor (2033) is drivingly connected with one end of the first screw rod (2032), the two sandblasting guns (204) are obliquely and symmetrically arranged, the inclination angle of the sandblasting gun (204) is 60-75° obliquely downward, the electroplating assembly (3) comprises an electroplating box (301), the upper port of the electroplating box (301) A lifting bracket (302) is provided at the bottom, and guide wheel groups (3022) for guiding the steel strip forward are provided on the inner sides of the two side brackets of the lifting bracket (302), and second side guide wheel groups for limiting the rolling contact on both sides of the steel strip are provided above the two side brackets of the lifting bracket (302). The upper cover of the electroplating box (301) is provided with an electroplating box outer cover (308), and the top of the electroplating box outer cover (308) is provided with a plurality of first hydraulic telescopic rods (303), and the telescopic rods of the first hydraulic telescopic rods (303) extend vertically downward and are connected to the lifting bracket (302). The stamping and forming assembly (1) includes a stamping and forming table (101), and a first upper mold bracket (102) is provided on one side of the stamping and forming table (101). 02), a first upper die drive (103) is provided on the top of the first upper die support (102), a forming upper die (104) is connected to the bottom of the first upper die drive (103), a forming lower die (105) is provided on the stamping and forming table (101) and at a position corresponding to the forming upper die (104), a first pressing plate (1041) is provided on the bottom of the forming upper die (104), and the first pressing plate (1041) is connected to the forming upper die (104) through a plurality of groups of first pressing plate springs (1042), feeding belts (5) for guiding steel strips are provided on both sides of the table surface of the stamping and forming table (101), and first side guide wheel groups for limiting rolling contact on both sides of the steel strip are provided on the brackets on both sides of the stamping and forming table (101).

2. A punching device for preparing a button battery shell according to claim 1, characterized in that: The material cutting and separation component (4) comprises a material cutting machine (401), a second upper die support (402) is provided on one side of the material cutting machine (401), a second upper die drive (403) is provided on the top of the second upper die support (402), a material cutting upper die (404) is connected to the bottom of the second upper die drive (403), a material cutting lower die (405) is provided on the material cutting machine (401) and at a position corresponding to the material cutting upper die (404), a material cutting tool (4043) for cutting is provided at the bottom of the material cutting upper die (404), and a material cutting lower die (405) is provided on and at a position corresponding to the material cutting tool (404) 043) is provided with a blanking hole (4051) for blanking, a second pressing plate (4041) is provided at the bottom of the blanking upper die (404), and the second pressing plate (4041) is connected to the blanking upper die (404) via a plurality of groups of second pressing plate springs (4042), a finished product conveyor belt (406) is provided at the bottom of the blanking machine (401), and a material guide inclined plate (4061) is provided at the bottom of the blanking machine (401) and at a position corresponding to the blanking lower die (405), and the material guide inclined plate (4061) extends downward at an angle of 45° to the finished product conveyor belt (406).

3. A punching device for preparing a button-type battery case according to claim 2, characterized in that: A pair of cleaning roller brackets (205) are provided on one side of the sandblasting workbench (201), a cleaning roller (2051) is connected between the two cleaning roller brackets (205), a second motor (2052) is provided on the outside of the cleaning roller bracket (205), and an output shaft of the second motor (2052) is drivingly connected to one end of the cleaning roller (2051).

4. A punching device for preparing a button-type battery case according to claim 3, characterized in that: A sandblasting chamber outer cover (206) is provided on the top of the sandblasting workbench (201), and a pair of side sliding doors are provided on one side of the sandblasting chamber outer cover (206), and observation windows are provided on the side sliding doors.

5. A punching device for preparing a button-type battery case according to claim 4, characterized in that: A plurality of lifting guide rods (3031) are provided at the bottom of the inner cavity of the electroplating box (301). The telescopic guides of the lifting guide rods (3031) are in a vertical direction, and the upper ends of the lifting guide rods (3031) are connected to the bottom of the lifting bracket (302).

6. A punching device for preparing a button battery case according to claim 5, characterized in that: A second sliding shaft (304) and a second screw rod (3041) arranged in parallel are connected to the inner side wall of the electroplating box outer cover (308); a second hydraulic telescopic rod (305) is connected to the second sliding shaft (304) and the second screw rod (3041); the telescopic rod portion of the second hydraulic telescopic rod (305) extends vertically downward, and an electromagnet (306) is provided at the lower end of the telescopic rod of the second hydraulic telescopic rod (305); a connecting seat is provided on one side of the second hydraulic telescopic rod (305); the connecting seat is slidably connected to the second sliding shaft (304); the connecting seat is screwed to the second screw rod (3041); a third motor (3042) is provided on one side of the inner wall of the electroplating box outer cover (308); and an output shaft of the third motor (3042) is drivingly connected to one end of the second screw rod (3041).

7. A punching device for preparing a button-type battery case according to claim 6, characterized in that: A wind knife (307) is provided on one side of the electroplating box outer cover (308), and the blowing direction of the wind knife (307) is set at an angle of 30-45 degrees downward.

8. A punching device for preparing a button-type battery case according to claim 7, characterized in that: An air guide channel (4044) communicating with the top of each cutting tool (4043) is provided inside the cutting upper die (404). An air supply device (407) is provided on one side of the cutting machine (401), and the air supply device (407) is connected to the air guide channel (4044) via an air guide pipe (4071).

9. A method for preparing a punching device using the button battery case of claim 8, characterized in that: The following steps are involved: Step 1: stamping and forming: the steel strip is transported to the work station by a feeding belt (5) provided on the stamping and forming table (101), and the forming upper die (104) is driven to descend and cooperate with the forming lower die (105) by controlling the first upper die drive (103), so as to stamp and form the shape of the button battery shell on the steel strip; Step 2: sandblasting the workpiece surface: the steel strip that has been stamped and formed by the stamping and forming assembly (1) enters the sandblasting workbench (201) under the transportation of the feeding belt (5), and the sandblasting gun (204) sandblasts the surface of the formed steel strip. The first motor (2033) drives the first screw rod (2032), thereby driving a pair of sandblasting guns (204) to reciprocate along the guidance of the first sliding shaft (2031), thereby comprehensively sandblasting the surface of the battery shell workpiece formed on the steel strip; Step 3: electroplating the workpiece surface: the steel strip is transported by the feeding belt (5) and the electromagnet (306) in the electroplating component (3) adsorbs the steel strip. The third motor (3042) drives the second screw rod (3041) to drive the second hydraulic telescopic rod (305) to move horizontally along the guide of the second sliding shaft (304). The second hydraulic telescopic rod (305) is lifted and lowered to pull the steel strip onto the lifting bracket (302). The lifting bracket (302) and the steel strip transported on the lifting bracket (302) are lowered by controlling the extension of the telescopic rod of the first hydraulic telescopic rod (303) until the steel strip is immersed in the electroplating solution in the electroplating box (301), thereby achieving surface electroplating of the battery shell workpiece. Step 4: workpiece cutting and separation: the steel strip is introduced into the workstation of the cutting machine (401) under the transportation of the feeding belt (5), and the upper cutting die (404) is driven to descend and cooperate with the lower cutting die (405) by controlling the second upper die drive (403). The battery shell molded parts are cut by the cutting tool (4043) at the bottom of the upper cutting die (404). After cutting, the battery shell workpiece falls along the drop hole (4051) on the lower cutting die (405), and is sent to the finished product conveyor belt (406) under the guide of the guide inclined plate (4061). The battery shell workpiece is guided out and collected by the finished product conveyor belt (406), and the gas supply device (407) is used to supply gas, so that the gas is introduced into the gas guide channel (4044) through the gas guide pipe (4071) and sprayed along the blade of the cutting tool (4043) to ensure complete material removal.

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