Cylindrical battery coating equipment and coating method

Abstract

The present invention belongs to the technical field of cylindrical battery coating, specifically to cylindrical battery coating equipment and coating method, including a feeding component, a film sleeve component is provided on one side above the feeding component, a pad placement component is provided on the other side of the film sleeve component, a heat shrink component is provided on the other side of the pad placement component, and a recovery component is provided on the other side of the heat shrink component; the feeding component includes a base, a plurality of fixed seats are movably connected above the base, a top groove is provided at the top axis of the fixed seat, an electric push rod is provided at the inner bottom of the top groove, and a moving rod is provided at the top output end of the electric push rod; the coating equipment has high coating efficiency, good coating effect, simple operation, stable and efficient, and can also realize the feeding, film sleeve, pad placement, heat shrinkage and recovery processes of cylindrical batteries at one time, with good process flow effect, accurate and stable coating, suitable for cylindrical batteries of different sizes and models, wide adaptability, strong integrity and high numerical control precision.

Description

Technical Field

[0001] The present invention belongs to the technical field of cylindrical battery coating, and in particular relates to cylindrical battery coating equipment and a coating method. Background Art

[0002] In the lithium battery manufacturing process, the lithium battery outer film is an indispensable protective element for the external protection of lithium batteries. The lithium battery outer film is a special plastic film, and its main function is to protect lithium batteries from the influence of the external environment and prevent battery performance degradation or safety accidents caused by physical impact, temperature changes, humidity changes, etc. The outer film can maintain the integrity of the electrolyte and electrodes inside the battery, avoid the intrusion of moisture, oxygen and other harmful substances, thereby extending the battery life and ensuring the safety performance of the battery.

[0003] Chinese invention patent CN116344908B discloses a cylindrical battery coating device, including a frame, a film storage rack for storing battery films is arranged on one side of the top of the frame, a battery storage mechanism for storing cylindrical batteries is arranged on the upper side of the frame away from the film storage rack, a material distribution component is arranged at the lower part of the battery storage mechanism, and a pushing component for pushing the cylindrical battery out of the material distribution component is arranged on the material distribution component; the cylindrical battery coating equipment has low coating efficiency and poor coating effect.

[0004] Chinese invention patent CN116749505A provides a high-speed cylindrical battery coating machine, including a machine platform, a film placing device, a feeding device, a film pulling and turning device, a film separating and feeding device, and a film pasting device. The cylindrical battery coating machine is difficult to operate and cannot be used for mass production.

[0005] When actually feeding cylindrical batteries, the above-mentioned coating equipment lacks the function of detecting the quality of cylindrical batteries. If unqualified cylindrical batteries are coated, not only will the coating efficiency be reduced, but also materials will be wasted. At the same time, when the cylindrical battery is positioned on the top of the fixed seat only by its own gravity, the cylindrical battery cannot be guaranteed to be precisely coaxial with the fixed seat, and when the position of the cylindrical battery is subsequently adjusted with the help of a V-shaped clamp, if the cylindrical battery shifts away from the end of the V-shaped clamp, the V-shaped clamp cannot achieve the push calibration of the cylindrical battery, thereby causing the cylindrical battery to shift and reducing the subsequent coating quality.

[0006] When cylindrical batteries are coated, the cut cylindrical PVC film is only coated on the outer surface of the cylindrical battery under the action of gravity. The coating accuracy is low, and the PVC film cannot accurately fall to the appropriate height and fit with the top of the fixed seat. When the PVC film is offset or wrinkled on the outer surface of the cylindrical battery, the quality of subsequent coating will be reduced.

[0007] When the sleeve film is completed and the insulating gasket is placed, if the annular gasket shifts on the top of the cylindrical battery under the action of its own weight, the existing technology lacks the function of adjusting the position of the annular gasket, which will reduce the subsequent calibration and compaction effect of the insulating gasket.

[0008] Finally, when heat shrinking is performed inside the heat shrink box, the cylindrical PVC film on the outer surface of the cylindrical battery is heat shrunk only by multiple heating tubes. If the PVC film is heated unevenly, it will cause poor heat shrinkage and poor bonding flatness, and eventually wrinkles will appear on the outer surface of the cylindrical battery, thereby reducing the quality of the cylindrical battery film. Summary of the invention

[0009] In view of the above problems, the present invention provides cylindrical battery coating equipment and coating method.

[0010] To achieve the above object, the present invention provides the following technical solution: a cylindrical battery film encapsulation device, comprising a feeding assembly, a film encapsulation assembly is provided on one side above the feeding assembly, a cushioning assembly is provided on the other side of the film encapsulation assembly, a heat shrinking assembly is provided on the other side of the cushioning assembly, and a recovery assembly is provided on the other side of the heat shrinking assembly;

[0011] The feeding assembly comprises a base, a plurality of fixed seats are movably connected above the base, a top groove is opened at the top axis of the fixed seat, an electric push rod is arranged at the inner bottom of the top groove, a moving rod is arranged at the top output end of the electric push rod, a plurality of pressure sensors are evenly arranged at the top of the moving rod, a threaded groove is arranged on the inner wall of the top groove, an external thread is arranged on the outer surface of the moving rod, a plurality of cleaning holes are connected to the inner bottom peripheral side surface of the top groove through a connecting hole, and a solenoid valve is arranged inside the cleaning hole;

[0012] The film sleeve assembly comprises a square frame, a central hole is provided inside the square frame, and a directional rod is provided inside the central hole;

[0013] The pad placement assembly comprises a bottom frame, and a pressure ring rod is slidably connected inside the bottom frame;

[0014] The heat shrink assembly includes a heat shrink box, and a plurality of heating tubes are evenly arranged inside the heat shrink box;

[0015] The recycling assembly includes a recycling frame.

[0016] The coating equipment can effectively carry out feeding, coating, padding, heat shrinking and recycling processes for cylindrical batteries. It is simple to operate, has good coating effect, high coating quality and high coating efficiency. It can also obtain the quality and position of the cylindrical battery through the change of pressure values ​​detected by multiple pressure sensors, and adjust the angle of the cylindrical battery accordingly, so as to ensure that the cylindrical battery is coaxial with the moving rod. In the coating process, the moving rod can also be moved up and down and rotated with the help of the moving rod to improve the height and flatness of the PVC film on the outer surface of the cylindrical battery. At the same time, the position of the annular gasket is further detected in the padding process, so as to improve the accuracy of padding. In the heat shrinking process, the moving rod drives the cylindrical battery to move up and down and rotate, so as to improve the heat shrinkage flatness of the PVC film on the outer surface of the cylindrical battery.

[0017] Preferably, a controller is provided on one side of the base, a transmission frame is provided above the base, a driving motor is provided on one side of the transmission frame and at the top of the base, the output end of the driving motor passes through the transmission frame and is provided with driving teeth, the inner wall on the other side of the transmission frame is rotatably connected with a driven tooth through a rotating shaft, the outer surfaces of the driven tooth and the driving tooth are transmission-connected with a transmission chain, a plurality of connecting plates are evenly provided on the outer surface of the transmission chain, the top of the connecting plate is fixedly connected to the bottom of the fixed seat, a plurality of positioning seats are evenly provided on one side of the transmission frame, a docking plate is provided on the other end of the positioning seat, a distance sensor is provided on the other side of the docking plate, a plurality of L-shaped plates are evenly provided on the other side of the transmission frame, a clamping pneumatic push rod is provided on the other side of the L-shaped plate, a cross plate is provided on the output end of the clamping pneumatic push rod, and a V-shaped clamping plate is provided on the side of the cross plate close to the docking plate.

[0018] Preferably, the inner wall of the top groove is sealingly and slidingly connected to the outer surface of the moving rod, the external thread is threadedly connected to the thread groove, the pressure sensor is used to detect the pressure value of the top of the moving rod, the top of the cleaning hole is inclined and directly opposite to the top of the moving rod, the inside of the cleaning hole is provided with a filter, and the inside of the filter is evenly provided with a plurality of filter holes, a loading frame is provided on one side of the top of the base, the inside of the loading frame is connected to a guide wheel through a stepper motor, a feeding track is provided at the bottom output end of the feeding frame, the bottom of the feeding track is fixedly connected to the top of the base, and the output end of the feeding track matches the top of the fixed seat.

[0019] Preferably, one side of the square frame is rotatably connected to a film roller via a transmission motor, the outer surface of the film roller is provided with a PVC film, a guide rod is provided on the side of the film roller close to the square frame, the bottom of the guide rod is fixedly connected to the top of the square frame, a plurality of guide rollers are evenly arranged inside the guide rod, a plurality of guide rollers are evenly arranged on the top of the square frame and on the outer surface of the center hole, one side of the top of the directional rod is fixedly connected to the top of the square frame, a sealing machine is provided on the inner wall of the square frame and on the outer surface of the directional rod, and an inclined baffle is provided on the bottom of the square frame and on the side away from the pad assembly.

[0020] Preferably, a side frame is provided on one side of the square frame, a rotating motor is provided on the inner top of the side frame, a rotating wheel is provided on the bottom output end of the rotating motor, a matching wheel is rotatably connected to the inner wall of the square frame and the outer surface of the directional rod, a conveyor belt is transmission-connected to the outer surfaces of the rotating wheel and the matching wheel, a cutting knife is provided at the bottom of the matching wheel by adjusting a pneumatic push rod, and an annular groove is provided on the outer surface of the directional rod, and the annular groove matches the cutting knife.

[0021] Preferably, a splicing frame is provided on the top of the base, a feeding motor is provided on one side of the splicing frame, the output end of the feeding motor passes through the splicing frame and is provided with a gasket roller, the outer surface of the gasket roller is provided with an insulating gasket, a cutting pneumatic push rod is provided on the top of the bottom frame, the bottom output end of the cutting pneumatic push rod passes through the bottom frame and is provided with a push plate, the bottom of the push plate is fixedly connected to the top of the pressure ring rod, a limiting plate is provided on the inner wall of the bottom frame, a docking hole is opened inside the limiting plate, the inner wall of the docking hole is sealingly and slidably connected to the outer surface of the pressure ring rod, an ejection motor is provided on one side of the bottom frame, the output end of the ejection motor passes through the bottom frame and is provided with an ejection roller.

[0022] Preferably, a vertical plate is provided at the top of the base and located on the side of the bottom frame away from the membrane assembly, a tablet pressing pneumatic push rod is provided at the top of the vertical plate, the bottom output end of the tablet pressing pneumatic push rod passes through the vertical plate and is provided with a support plate, two sleeves are symmetrically provided inside the vertical plate, the inside of the sleeve is slidably connected with a side rod, the bottom of the side rod is fixedly connected to the top of the support plate, an elastic pressing sheet is provided at the bottom of the support plate and close to the bottom frame, and an annular pressing cylinder is provided at the bottom of the support plate and away from the bottom frame.

[0023] Preferably, a transverse hole is penetrated through the interior of the heat shrink box, a plurality of heat collecting covers are arranged inside the heat shrink box, a plurality of heat dissipation holes are evenly arranged on the top of the heat shrink box, a plurality of threaded rods are evenly arranged on the top of the heat shrink box, a heat dissipation cover is threadedly connected to the top of the threaded rods, a round rod is arranged at the bottom of the heat dissipation cover, and the bottom of the round rod passes through the heat dissipation hole and is fixedly connected to the top of the heat collecting cover.

[0024] Preferably, the recycling component also includes a movable frame, which is movably connected to one side of the base, and a recycling frame is movably connected to the top of the movable frame. A recycling track is provided at the output end of the heat shrink box and located at the top of the base, and the other end of the recycling track matches the recycling frame. A mounting seat is provided at the top of the base, and a pneumatic push rod for unloading is provided on the top of the mounting seat, and the output end of the pneumatic push rod for unloading matches the recycling frame.

[0025] The coating method of the cylindrical battery coating equipment as described above comprises the following steps;

[0026] S1. The cylindrical battery falls on the top of the moving rod. When the sum of the pressure values ​​detected by the multiple pressure sensors is less than the preset pressure and value, the electric push rod starts to extend to the maximum value. The electric push rod drives the cylindrical battery to move upward to the maximum distance through the moving rod and unloads the material. When the pressure value detected by the pressure sensor on one side increases, the electric push rod starts to extend and drives the cylindrical battery to move upward through the moving rod. The thread groove cooperates with the external thread and drives the moving rod and the cylindrical battery to rotate a corresponding angle. The side with the increased pressure value detected by the pressure sensor is away from the square frame.

[0027] S2. When the cylindrical battery moves to the bottom of the square frame, the PVC film falls down to the outer surface of the cylindrical battery after being conveyed and cut, the electric push rod is started and the output end is continuously extended and shortened, and the electric push rod drives the cylindrical battery on the top to continuously move up and down and rotate through the moving rod. The cylindrical PVC film on the outer surface of the cylindrical battery continuously vibrates under the action of inertia, and the gas inside the top groove continuously flows along the connecting hole and the cleaning hole. The gas discharged from the cleaning hole exerts a wind cleaning effect on the cylindrical PVC film on the outer surface of the cylindrical battery;

[0028] S3, when the cylindrical battery moves to the bottom of the bottom frame, the electric push rod starts and the output end extends to the maximum distance, the electric push rod drives the cylindrical battery to move upward to the maximum distance through the moving rod, the pressing ring rod moves downward and presses to form an annular gasket, when the pressure values ​​detected by the multiple pressure sensors are different, the electric push rod starts and the output end continues to extend and shorten, the output end of the electric push rod drives the cylindrical battery to move up and down and rotate through the moving rod, the solenoid valves on the side with the larger pressure value detected by the pressure sensor are opened one by one, the cleaning holes at the corresponding positions discharge gas and apply wind force calibration to the annular gasket;

[0029] S4. When the cylindrical battery moves into the heat shrink box, the heating tube starts and shrinks the PVC film on the outer surface of the cylindrical battery, the electric push rod starts and the output end continuously extends and shortens, and the output end of the electric push rod drives the cylindrical battery to move up and down and rotate through the moving rod. The gas inside the top groove is discharged along the connecting hole and the cleaning hole and is heated by the heating tube to form hot air, which acts on the outer surface of the PVC film.

[0030] By further defining the coating method, the coating quality is guaranteed and the coating efficiency is improved.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. This application sets up the mutual cooperation of components such as feeding assembly, film covering assembly, pad placing assembly, heat shrinking assembly and recycling assembly. The coating equipment has high coating efficiency, good coating effect, simple operation, stability and high efficiency. At the same time, it can realize the feeding, film covering, pad placing, heat shrinking and recycling processes of cylindrical batteries at one time. The process flow has good effect, the coating is accurate and stable, and it is suitable for cylindrical batteries of different sizes and models. It has wide adaptability, strong integrity and high CNC precision.

[0033] 2. The present application sets up a moving rod and a pressure sensor and other components to cooperate with each other. The device can pre-detect the quality of the cylindrical batteries during the conveying process and push out unqualified cylindrical batteries, thereby improving the subsequent coating effect of the cylindrical batteries. At the same time, it can also detect the position accuracy of the cylindrical batteries on the top of the moving rod, and cooperate with the V-shaped clamp to calibrate the position of the cylindrical batteries, with higher positioning accuracy and higher positioning efficiency.

[0034] 3. In the present application, by setting up the cooperation of the cleaning holes and the electric push rod and other components, when the equipment performs the film coating process on the outer surface of the cylindrical battery, the cylindrical battery continuously rotates and moves up and down inside the PVC film, and cooperates with the inertia of the PVC film itself and the circulation of the gas inside the cleaning hole, so as to further improve the integrity and cleanliness of the PVC film on the outer surface of the cylindrical battery, and avoid wrinkles or deviations in the PVC film, which reduce the fitting accuracy.

[0035] 4. The present application sets up the mutual cooperation of components such as the solenoid valve and the cleaning hole. When the cylindrical battery is subsequently pressed, it can not only reduce the distance between the annular gasket and the top of the cylindrical battery, thereby ensuring the accuracy of the installation of the annular gasket under its own weight, but also detect the position of the annular gasket and adjust the position of the annular gasket in conjunction with the internal flow discharge of the cleaning hole to ensure that the annular gasket and the cylindrical battery are in a coaxial position.

[0036] 5. The present application sets up a heat shrink box and a heating tube and other components to cooperate with each other. When the PVC film on the outer surface of the cylindrical battery is heat-shrunk by means of the high temperature inside the heat shrink box, the up and down movement and rotation of the cylindrical battery and the circulation of gas inside the cleaning hole are coordinated to further improve the heat shrinkage effect of the PVC film on the outer surface of the cylindrical battery, thereby ensuring the fitting quality and flatness of the PVC film. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention;

[0039] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0040] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0041] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0042] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the present invention from another viewing angle;

[0043] Figure 7 for Figure 6 The enlarged schematic diagram at C in the middle;

[0044] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing seat of the present invention;

[0045] Fig. 9 It is a schematic diagram of the internal three-dimensional structure of the fixing base of the present invention;

[0046] Fig.10 for Fig. 9 Enlarged schematic diagram at point D in the middle.

[0047] In the figure: 1. Feeding assembly; 101. Base; 102. Driving motor; 103. Driving gear; 104. Driven gear; 105. Transmission chain; 106. Transmission frame; 107. Connecting plate; 108. Fixed seat; 109. Top groove; 110. Electric push rod; 111. Thread groove; 112. Moving rod; 113. Pressure sensor; 114. Connecting hole; 115. Cleaning hole; 116. Solenoid valve; 117. Filter screen; 118. Filter hole; 119. External thread; 120 , guide wheel; 121, feeding track; 122, loading frame; 123, positioning seat; 124, docking plate; 125, L-shaped plate; 126, clamping pneumatic push rod; 127, cross plate; 128, V-shaped clamping plate; 2, film sleeve assembly; 201, square frame; 202, film roller; 203, guide rod; 204, center hole; 205, directional rod; 206, guide roller; 207, side frame; 208, rotating motor; 209, rotating wheel; 210, conveyor belt; 211, Matching wheel; 212, pneumatic push rod for adjustment; 213, cutter; 214, ring groove; 215, inclined baffle; 216, sealing machine; 217, traction roller; 3, gasket assembly; 301, splicing frame; 302, feeding motor; 303, gasket roller; 304, bottom frame; 305, pneumatic push rod for cutting; 306, limit plate; 307, docking hole; 308, ring pressing rod; 309, push plate; 310, push motor; 311, push roller; 312, vertical plate; 313, press sheet Pneumatic push rod; 314, sleeve; 315, side rod; 316, support plate; 317, elastic pressing sheet; 318, annular pressing cylinder; 4, heat shrink assembly; 401, heat shrink box; 402, heating tube; 403, heat collecting cover; 404, heat dissipation hole; 405, heat dissipation cover; 406, threaded rod; 407, transverse hole; 408, round rod; 5, recovery assembly; 501, movable frame; 502, recovery track; 503, mounting seat; 504, unloading pneumatic push rod; 505, recovery frame. DETAILED DESCRIPTION

[0048] 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.

[0049] like Figure 1-7As shown, the cylindrical battery coating equipment includes a feeding component 1, which conveys the cylindrical battery. A film covering component 2 is provided on the upper side of the feeding component 1. The film covering component 2 works and covers the PVC film on the outer surface of the cylindrical battery. A padding component 3 is provided on the other side of the film covering component 2. The padding component 3 cuts and installs the insulating gasket on the top of the cylindrical battery. A heat shrink component 4 is provided on the other side of the padding component 3. The heat shrink component 4 bonds the outer surface of the cylindrical battery to the PVC film at high temperature. A recovery component 5 is provided on the other side of the heat shrink component 4. The recovery component 5 recycles the cylindrical batteries after coating.

[0050] The feeding assembly 1 includes a base 101, a controller is provided on one side of the base 101, a plurality of fixed seats 108 are movably connected above the base 101, the fixed seats 108 continuously transmit and drive the cylindrical batteries to be transmitted above the base 101, a transmission frame 106 is provided above the base 101, the transmission frame 106 plays a limiting role in the transmission of the cylindrical batteries, a driving motor 102 is provided on one side of the transmission frame 106 and located at the top of the base 101, the output end of the driving motor 102 passes through the transmission frame 106 and is provided with driving teeth 103, the driving motor 102 is started and drives the driving teeth 103 to rotate, the inner wall on the other side of the transmission frame 106 is rotatably connected with a driven tooth 104 through a rotating shaft, the outer surfaces of the driven tooth 104 and the driving tooth 103 are transmission-connected with a transmission chain 105, the rotation of the driving tooth 103 drives the transmission chain 105 to rotate, and the driven tooth 104 supports and tensions the normal transmission of the transmission chain 105.

[0051] The outer surface of the transmission chain 105 is evenly provided with a plurality of connecting plates 107, the top of the connecting plate 107 is fixedly connected to the bottom of the fixing seat 108, the transmission chain 105 rotates and drives the fixing seat 108 to rotate through the connecting plate 107, the fixing seat 108 drives the cylindrical battery on the top to rotate and perform the subsequent coating process, one side of the transmission frame 106 is evenly provided with a plurality of positioning seats 123, the other end of the positioning seat 123 is provided with a docking plate 124, the position of the docking plate 124 does not change and the cylindrical battery is positioned, and the other side of the docking plate 124 is provided with a distance sensor, with the help of the distance sensor The distance value of the end of the docking plate 124 is detected to determine whether there is a cylindrical battery at this position, so as to realize intermittent coating of the cylindrical battery. An L-shaped plate 125 is provided on the other side of the transmission frame 106, and a clamping pneumatic push rod 126 is provided on the other side of the L-shaped plate 125. A transverse plate 127 is provided on the output end of the clamping pneumatic push rod 126. A V-shaped clamping plate 128 is provided on the side of the transverse plate 127 close to the docking plate 124. The clamping pneumatic push rod 126 is started and drives the V-shaped clamping plate 128 to move through the transverse plate 127. The V-shaped clamping plate 128 cooperates with the docking plate 124 to position and clamp the cylindrical battery.

[0052] A loading frame 122 is provided on one side of the top of the base 101, and a plurality of cylindrical batteries are placed inside the loading frame 122. The interior of the loading frame 122 is connected to a guide wheel 120 which is rotated by a stepper motor. The guide wheel 120 rotates and guides the cylindrical batteries for loading. A feeding track 121 is provided at the bottom output end of the loading frame 122. The bottom of the feeding track 121 is fixedly connected to the top of the base 101, and the output end of the feeding track 121 matches the top of the fixed seat 108. Then, the cylindrical batteries inside the loading frame 122 fall along the feeding track 121 above the fixed seat 108 for transportation.

[0053] The film covering assembly 2 includes a square frame 201, a center hole 204 is opened inside the square frame 201, and a directional rod 205 is arranged inside the center hole 204. The PVC film moves downward along the center hole 204 under the guidance of the directional rod 205, and after bonding and cutting, it is sleeved on the outer surface of the cylindrical battery to complete the film covering process.

[0054] A film roller 202 is rotatably connected to one side of the square frame 201 through a transmission motor, and a PVC film is arranged on the outer surface of the film roller 202. The film roller 202 rotates continuously and realizes the discharge process of the PVC film. A guide rod 203 is arranged on the side of the film roller 202 close to the square frame 201. The bottom of the guide rod 203 is fixedly connected to the top of the square frame 201. A plurality of guide rollers are evenly arranged inside the guide rod 203. The PVC film enters the center hole 204 through the guiding process of the plurality of guide rollers inside the guide rod 203. A plurality of guide rollers 206 are evenly arranged on the top of the square frame 201 and on the outer surface of the center hole 204. The guide rollers 206 rotate continuously and guide and transmit the PVC film, thereby ensuring that the PVC film can be accurately The PVC film is accurately and stably conveyed downward along the center hole 204 and wrapped on the outer surface of the directional rod 205. The top side of the directional rod 205 is fixedly connected to the top of the square frame 201. Therefore, the PVC film is still a sheet structure when entering the center hole 204. The inner wall of the square frame 201 and the outer surface of the directional rod 205 are provided with a sealing machine 216. The sheet PVC film inside the center hole 204 is sealed into a sleeve-like structure with the help of the sealing effect of the sealing machine 216, and is sleeved and slid downward on the outer surface of the directional rod 205. The bottom of the square frame 201 and the side away from the pad assembly 3 are provided with an inclined baffle 215. The inclined baffle 215 selects and blocks the cylindrical batteries above the fixed seat 108, thereby ensuring the accuracy and efficiency of the cylindrical battery film.

[0055] A side frame 207 is provided on one side of the square frame 201, a rotating motor 208 is provided on the inner top of the side frame 207, a rotating wheel 209 is provided on the bottom output end of the rotating motor 208, the rotating motor 208 is started and drives the rotating wheel 209 to rotate, the inner wall of the square frame 201 and the outer surface of the directional rod 205 are rotatably connected with a matching wheel 211, the outer surfaces of the rotating wheel 209 and the matching wheel 211 are transmission-connected with a conveyor belt 210, the rotating wheel 209 rotates and drives the matching wheel 211 to rotate through the conveyor belt 210, and the matching wheel A cutter 213 is provided at the bottom of 211 by adjusting the pneumatic push rod 212. The pneumatic push rod 212 is adjusted to drive the cutter 213 to move horizontally to adjust the cutting depth of the PVC film. The matching wheel 211 rotates and drives the cutter 213 to rotate by adjusting the pneumatic push rod 212. An annular groove 214 is provided on the outer surface of the directional rod 205. The annular groove 214 matches the cutter 213. The cutter 213 cuts the PVC film and forms a sleeve structure to be sleeved on the outer surface of the cylindrical battery, thereby completing the film sleeve process for the cylindrical battery.

[0056] The pad assembly 3 includes a bottom frame 304, and a pressing ring rod 308 is slidably connected inside the bottom frame 304. The pressing ring rod 308 moves up and down to press the insulating sheet, and drops the insulating sheet on the top of the cylindrical battery for pressing and installation.

[0057] A splicing frame 301 is provided on the top of the base 101, and a feeding motor 302 is provided on one side of the splicing frame 301. The output end of the feeding motor 302 passes through the splicing frame 301 and is provided with a gasket roller 303. The outer surface of the gasket roller 303 is provided with an insulating gasket. The feeding motor 302 rotates and drives the gasket roller 303 to rotate. The gasket roller 303 rotates to transmit the insulating gasket. A cutting pneumatic push rod 305 is provided on the top of the bottom frame 304. The cutting pneumatic push rod 305 The bottom output end of 05 passes through the bottom frame 304 and is provided with a push plate 309. The bottom of the push plate 309 is fixedly connected to the top of the pressure ring rod 308. The cutting pneumatic push rod 305 is started and drives the push plate 309 to move up and down. The push plate 309 moves up and down and drives the pressure ring rod 308 to move up and down. The pressure ring rod 308 presses the insulating sheet to form an insulating ring and falls on the top of the cylindrical battery. The inner wall of the bottom frame 304 is provided with a limit plate 306. The limit plate 306 A docking hole 307 is provided inside, and the inner wall of the docking hole 307 is sealed and slidably connected to the outer surface of the pressure ring rod 308. The setting of the docking hole 307 improves the limiting and accuracy of the up and down movement of the pressure ring rod 308, avoids the pressure ring rod 308 from tilting due to long-term use and reduces the pressing effect of the insulating gasket, and at the same time, the up and down movement of the pressure ring rod 308 can also scrape and clean the impurities attached to the outer surface of the pressure ring rod 308, thereby improving the cleaning effect of the pressure ring rod 308. A push-out motor 310 is provided on one side of the bottom frame 304, and the output end of the push-out motor 310 passes through the bottom frame 304 and is provided with a push-out roller 311, and a matching roller is provided above the push-out roller 311, and the matching roller is rotatably connected to the inner wall of the bottom frame 304 through a bearing, and the insulating gasket is located between the push-out roller 311 and the matching roller, and the push-out motor 310 is started and drives the push-out roller 311 to rotate, and the push-out roller 311 drives the insulating gasket above to be continuously transmitted.

[0058] A vertical plate 312 is provided at the top of the base 101 and located on the side of the bottom frame 304 away from the film sleeve assembly 2. A tabletting pneumatic push rod 313 is provided at the top of the vertical plate 312. The bottom output end of the tabletting pneumatic push rod 313 passes through the vertical plate 312 and is provided with a support plate 316. When the tabletting pneumatic push rod 313 is started, it drives the support plate 316 to move up and down. Two sleeves 314 are symmetrically provided inside the vertical plate 312. The inside of the sleeve 314 is slidably connected to a side rod 315. The bottom of the side rod 315 is connected to the support plate 316. The top of the support plate 316 is fixedly connected, and the side rod 315 and the sleeve 314 are sealed and slidably connected, thereby effectively improving the limiting and accuracy of the movement of the support plate 316. An elastic pressing piece 317 is provided at the bottom of the support plate 316 and on the side close to the bottom frame 304. The elastic pressing piece 317 elastically positions the insulating ring on the top of the cylindrical battery. An annular pressing cylinder 318 is provided at the bottom of the support plate 316 and on the side away from the bottom frame 304. The annular pressing cylinder 318 presses and fits the insulating ring on the top of the cylindrical battery.

[0059] The heat shrink assembly 4 includes a heat shrink box 401, and a plurality of heating tubes 402 are evenly arranged inside the heat shrink box 401. The heating tubes 402 inside the heat shrink box 401 are started and the PVC film on the outer surface of the cylindrical battery is bonded at high temperature. The heat shrink box 401 is provided with a transverse hole 407, and the fixing seat 108 drives the cylindrical battery to move inside the heat shrink box 401 through the transverse hole 407 and heat shrink. The heat shrink box 401 is provided with a plurality of heat collecting covers 403. The function of the heat collecting covers 403 further enhances the high temperature bonding effect of the PVC film on the outer surface of the cylindrical battery. The top of the heat shrink box 401 is evenly A plurality of heat dissipation holes 404 are evenly arranged, and the excess heat inside the heat shrink box 401 can be discharged along the heat dissipation holes 404. A plurality of threaded rods 406 are evenly arranged on the top of the heat shrink box 401. A heat dissipation cover 405 is threadedly connected to the top of the threaded rods 406. The heat dissipation cover 405 will directionally discharge the heat discharged along the heat dissipation holes 404. A round rod 408 is arranged at the bottom of the heat dissipation cover 405. The bottom of the round rod 408 passes through the heat dissipation holes 404 and is fixedly connected to the top of the heat collecting cover 403. The round rod 408 connects the heat dissipation cover 405 and the heat collecting cover 403, thereby improving the connection stability of the heat collecting cover 403.

[0060] The recycling assembly 5 includes a recycling frame 505. The cylindrical batteries after the film coating are put into the recycling frame 505 for recycling. The recycling assembly 5 also includes a movable frame 501. The movable frame 501 is movably connected to one side of the base 101. The recycling frame 505 is movably connected to one side of the movable frame 501. Therefore, the position and height of the recycling frame 505 can be adaptively adjusted to improve the recycling accuracy of the cylindrical batteries. The output end of the heat shrink box 401 and the top of the base 101 are provided with a recycling track 502. The other end of the recycling track 502 is connected to the recycling The cylindrical battery after heat shrinkage slides out along the recovery track 502, a mounting seat 503 is provided on the top of the base 101, and a pneumatic push rod 504 is provided on the top of the mounting seat 503. The output end of the pneumatic push rod 504 matches the recovery frame 505. When the cylindrical battery reaches one side of the recovery frame 505, the pneumatic push rod 504 starts and the output end applies thrust to one side of the cylindrical battery, so that the cylindrical battery falls into the recovery frame 505 for recycling, thereby completing the coating process of the cylindrical battery.

[0061] When in use, firstly, a large number of cylindrical batteries need to be placed inside the loading frame 122. The guide wheel 120 rotates and drives the cylindrical batteries to enter the feeding track 121 one by one at a uniform speed, and reach the top of the fixed seat 108 along the feeding track 121. At the same time, the controller controls the driving motor 102 to start and drive the driving teeth 103 to rotate. The driving teeth 103 cooperate with the driven teeth 104 to drive the transmission chain 105 to rotate. The transmission chain 105 drives the fixed seat 108 to rotate through the connecting plate 107, thereby realizing the falling of the cylindrical batteries and standing upright above the fixed seat 108 for transmission.

[0062] When the fixed seat 108 drives the cylindrical battery to the bottom of the film sleeve component 2, the distance value detected by the distance sensor on the side of the docking plate 124 decreases, indicating that the cylindrical battery has reached the appropriate position, and the clamping pneumatic push rod 126 located below the film sleeve component 2 is started and drives the V-shaped clamping plate 128 to move toward the end of the docking plate 124 through the cross plate 127. The V-shaped clamping plate 128 and the docking plate 124 cooperate to position and calibrate the cylindrical battery, so that the cylindrical battery and the fixed seat 108 are coaxial. Then the controller controls the film roller 202 to rotate continuously and drives the PVC film to be continuously transmitted backward. The PVC film enters the center hole 204 through the guide rod 203 and wraps around the outer surface of the directional rod 205. At the same time, the guide roller 206 rotates to continuously guide the PVC film to be transmitted downward. When the PVC film reaches the sealing machine 216, it is sealed and then continues to move downward and is transmitted downward through the traction roller 217.

[0063] At the same time, the controller controls the rotating motor 208 to start and drive the rotating wheel 209 to rotate. The rotating wheel 209 drives the matching wheel 211 to rotate through the conveyor belt 210. The matching wheel 211 drives the cutter 213 to move and rotate. The pneumatic push rod 212 is adjusted to start and drive the cutter 213 to move toward the end close to the directional rod 205. When the cutter 213 contacts the PVC film and cooperates with its own rotation, the PVC film is cut into a circle. After the cutting is completed, the pneumatic push rod 212 is adjusted to drive the cutter 213 to move in the opposite direction and separate from the PVC film. At this time, the cylindrical PVC film sleeve is driven downward under the transmission action of the traction roller 217 and sleeved on the outer surface of the cylindrical battery, thereby completing the film sleeve process.

[0064] After the cylindrical battery is filmed, the transmission chain 105 continues to transmit and reaches the bottom of the pad assembly 3. At this time, the cylindrical battery above the fixed seat 108 is further positioned and calibrated with the help of the V-shaped clamping plate 128 located below the pad assembly 3. Then the controller controls the feeding motor 302 to drive the gasket roller 303 to rotate, and the gasket roller 303 drives the insulating gasket to be transmitted backward and enter the bottom frame 304. At the same time, the push-out motor 310 at the other end drives the push-out roller 311 to rotate continuously, and the insulating gasket is continuously transmitted backward at a uniform speed and intermittently. When the fixed seat 108 drives the cylindrical battery to stop transmitting, the cutting pneumatic push rod 305 is pneumatic and drives the push plate 309 to move downward. The push plate 309 drives the pressing ring rod 308 to move downward along the docking hole 307, and then presses with the insulating gasket to form an annular gasket, and the annular gasket falls down on the top of the cylindrical battery to complete the process of placing the annular gasket.

[0065] The transmission chain 105 continues to rotate and drives the cylindrical battery to the bottom of the support plate 316 through the fixed seat 108, repeats the above process and uses the V-shaped clamp 128 and the docking plate 124 to position and calibrate the cylindrical battery. At the same time, the pressing pneumatic push rod 313 is pneumatic and drives the support plate 316 to move downward, and the support plate 316 drives the elastic pressing plate 317 and the annular pressing cylinder 318 to move downward, and then uses the elastic pressing plate 317 and the annular pressing cylinder 318 to calibrate and compact the annular gasket on the top of the cylindrical battery in turn, thereby effectively improving the accuracy and compaction effect of the annular gasket on the top of the cylindrical battery.

[0066] Afterwards, the transmission chain 105 continues to rotate and drives the cylindrical battery to be transmitted backward through the fixed seat 108. The cylindrical battery enters the heat shrink box 401 after passing through the transverse hole 407. The heating tube 402 is started and heat shrinks the PVC film on the outer surface of the cylindrical battery, so that the PVC film is tightly attached to the outer surface of the cylindrical battery under high temperature conditions. At the same time, excess heat can be discharged along the heat dissipation hole 404 to ensure the stability of the temperature inside the heat shrink box 401. When the cylindrical battery reaches under the heat collecting cover 403, the heat collecting effect of the heat collecting cover 403 is used to further improve the high-temperature bonding effect of the PVC film on the outer surface of the cylindrical battery.

[0067] After the heat shrinkage of the cylindrical battery is completed, the cylindrical battery is driven into the recycling track 502 through the fixed seat 108 under the transmission action of the transmission chain 105. When the cylindrical battery reaches the recycling frame 505, the unloading pneumatic push rod 504 is started and applies thrust to one side of the cylindrical battery, so that the cylindrical battery falls into the recycling frame 505 for recycling, thereby completing the film coating, pad placement and heat shrinkage processes of the cylindrical battery at one time, and the above process can be repeated continuously.

[0068] The coating equipment has high coating efficiency, good coating effect, simple operation, stability and high efficiency. At the same time, it can realize the feeding, coating, padding, heat shrinkage and recycling processes of cylindrical batteries at one time. The process flow has good effect, the coating is accurate and stable, and it is suitable for cylindrical batteries of different sizes and models. It has wide adaptability, strong integrity and high CNC precision. Example

[0069] When feeding cylindrical batteries, the above-mentioned coating equipment lacks the function of detecting the quality of cylindrical batteries. If unqualified cylindrical batteries are coated, not only will the coating efficiency be reduced, but also materials will be wasted. At the same time, when the cylindrical battery falls on the fixing seat 108 by gravity alone, the cylindrical battery cannot be guaranteed to be precisely coaxial with the fixing seat 108, and when the position of the cylindrical battery is subsequently adjusted by means of the V-shaped clamping plate 128, if the cylindrical battery deviates away from the end of the V-shaped clamping plate 128, the V-shaped clamping plate 128 cannot achieve the push calibration of the cylindrical battery. When the cylindrical battery is subsequently coated, the cylindrical PVC film after cutting is only under the gravity. When the PVC film is sleeved on the outer surface of the cylindrical battery under the action, the sleeve accuracy is low, and the PVC film cannot accurately fall to the appropriate height and fit on the top of the fixing seat 108, thereby reducing the quality of subsequent heat shrinkage; when the film is completed and the pad is placed, if the annular gasket falls on the top of the cylindrical battery under its own weight, it will be offset, thereby reducing the subsequent calibration and compaction effects; finally, when heat shrinking is performed inside the heat shrink box 401, when only multiple heating tubes 402 are used to heat shrink the tubular PVC film on the outer surface of the cylindrical battery, if the PVC film is heated unevenly, it will cause its heat shrinkage and fitting effect to be poor, and eventually wrinkles will appear on the outer surface of the cylindrical battery, thereby reducing the film quality of the cylindrical battery.

[0070] like Figure 8-10 As shown, in order to solve the above problems, the cylindrical battery coating equipment also includes: a top groove 109 is opened at the top axis of the fixed seat 108, and an electric push rod 110 is provided at the inner bottom of the top groove 109. The top output end of the electric push rod 110 is rotatably connected to the moving rod 112 through a bearing. The inner wall of the top groove 109 is sealed and slidably connected to the outer surface of the moving rod 112. The cylindrical battery will fall above the moving rod 112 along the feeding track 121, and the electric push rod 110 starts and drives the moving rod 112 to move up and down inside the top groove 109.

[0071] A plurality of pressure sensors 113 are evenly arranged on the top of the moving rod 112. The pressure sensors 113 are used to detect the pressure value on the top of the moving rod 112. The plurality of pressure sensors 113 jointly detect and obtain the weight and position of the cylindrical battery above the moving rod 112. A thread groove 111 is arranged on the inner wall of the top groove 109. An external thread 119 is arranged on the outer surface of the moving rod 112. The external thread 119 is threadedly connected with the thread groove 111. When the moving rod 112 moves up and down inside the top groove 109, the external thread 119 is threadedly matched with the thread groove 111 and drives the moving rod 112 to rotate. The inner bottom peripheral side surface of the top groove 109 is connected with a plurality of cleaning holes 115 through the connecting hole 114. The cleaning holes 115 A solenoid valve 116 is provided inside the cleaning hole 115. When the solenoid valve 116 is opened, when the moving rod 112 moves downward, the gas inside the top groove 109 is squeezed and enters the cleaning hole 115 along the connecting hole 114. The top of the cleaning hole 115 is inclined and directly opposite to the top of the moving rod 112. Then, the gas inside the cleaning hole 115 is ejected and blown obliquely upward to the cylindrical battery above the moving rod 112 and the PVC film on the surface. A filter screen 117 is provided inside the cleaning hole 115. A plurality of filter holes 118 are evenly arranged inside the filter screen 117. The gas flowing inside the cleaning hole 115 is filtered by means of the filter screen 117 and the filter holes 118 inside, thereby improving the cleanliness and stability of the gas discharged from the cleaning hole 115.

[0072] According to the process of the first embodiment, in actual use, the cylindrical battery that slides out along the feeding track 121 reaches the top of the moving rod 112 under its own weight. At this time, multiple pressure sensors 113 all detect pressure values. When the sum of the pressure values ​​detected by the multiple pressure sensors 113 reaches the set preset total pressure value, it means that the quality of the cylindrical battery meets the requirements. When the sum of the pressure values ​​detected by the multiple pressure sensors 113 is less than the set preset total pressure value, it means that there is a problem with the quality of the cylindrical battery at this time. The controller controls the electric push rod 110 to start and extend to the maximum distance. The top output end of the electric push rod 110 drives the moving rod 112 to move upward to the maximum distance inside the top groove 109. The moving rod 112 drives the cylindrical battery at the top to move upward to the maximum distance. At this time, as the transmission chain 105 rotates to reach one side of the inclined baffle 215, the top height of the cylindrical battery is greater than the bottom height of the inclined baffle 215. At this time, the inclined baffle 215 blocks and recycles the cylindrical battery to avoid encapsulating the cylindrical battery of unqualified quality and causing waste of materials.

[0073] When the pressure values ​​detected by multiple pressure sensors 113 are all equal, it means that the cylindrical battery and the moving rod 112 are in a coaxial position at this time, and the subsequent film covering and padding processes of the cylindrical battery are more accurate and have better effects. However, if the pressure values ​​detected by multiple pressure sensors 113 are not equal, it means that the cylindrical battery and the moving rod 112 are not coaxial. At this time, the position of the cylindrical battery on the top of the moving rod 112 needs to be adjusted. When the pressure value detected by the pressure sensor 113 on one side is greater than the set pressure preset value, and the pressure value detected by the pressure sensor 113 on the other side is less than the set pressure preset value, it means that the cylindrical battery is offset to the side with a larger pressure value, and the position of the cylindrical battery needs to be adjusted so that the offset side of the cylindrical battery corresponds to the V-shaped clamp 128.

[0074] The controller controls the electric push rod 110 to start extending and drive the moving rod 112 to move upward. The moving rod 112 cooperates with the thread groove 111 through the external thread 119 and drives the moving rod 112 to rotate. The moving rod 112 rotates and drives the cylindrical battery on the top to rotate, so that the cylindrical battery is offset to one side and rotates to the side of the V-shaped clamping plate 128. At the same time, the electric push rod 110 moves the moving rod 112 upward to adjust the height of the cylindrical battery driven by the moving rod 112 to move upward, ensuring that the center of gravity of the cylindrical battery is in a suitable position, further improving the stability and efficiency of the subsequent V-shaped clamping plate 128 to push the cylindrical battery. When the moving rod 112 moves upward, the internal body of the top groove 109 is As the volume increases and the pressure decreases, the top groove 109 applies a suction force and allows external gas to enter the top groove 109 along the cleaning hole 115 and the connecting hole 114, and the gas is filtered by means of multiple filter holes 118 inside the filter 117. At the same time, in actual use, the electric push rod 110 can drive the moving rod 112 to move up and down continuously inside the top groove 109, and the solenoid valves 116 are all in an open state. Then, the gas inside the top groove 109 continues to circulate, and is finally discharged and sucked along the cleaning hole 115. With the help of the circulation of the gas, the outer surface of the cylindrical battery is blown by wind, thereby further improving the cleaning effect of the outer surface of the cylindrical battery, and avoiding the residual dust and impurities on the outer surface of the cylindrical battery. Impact on the subsequent packaging quality.

[0075] After that, the cylindrical battery moves to the bottom of the film sleeve assembly 2, and the clamping pneumatic push rod 126 is started and drives the V-shaped clamping plate 128 to move and push and correct the position of the cylindrical battery. At this time, the cylindrical battery continues to move and reaches the coaxial position with the moving rod 112. The pressure values ​​detected by the multiple pressure sensors 113 are equal and equal to the set pressure preset value. After the positioning of the cylindrical battery is completed, the above process is repeated to convey and cut the PVC film, so that the cylindrical PVC film falls downward to the outer surface of the cylindrical battery. At this time, the controller controls the electric push rod 110 to continuously extend and shorten, and the top output end of the electric push rod 110 drives the cylindrical battery in the cylindrical PVC film through the moving rod 112. When the moving rod 112 moves up and down and rotates inside the top groove 109, the inertia of the cylindrical PVC film makes it vibrate continuously and finally stably support on the top of the fixing seat 108 and on the outer surface of the cylindrical battery, and the gas inside the cylindrical PVC film can be quickly squeezed out to improve the fitting effect between the cylindrical PVC film and the cylindrical battery. At the same time, when the moving rod 112 moves up and down and rotates inside the top groove 109 continuously, it can also exert force on the gas inside the top groove 109. The gas continuously flows along the connecting hole 114 and the cleaning hole 115, and finally acts on the outer surface of the cylindrical PVC film, further improving the cleanliness and fitting effect of the outer surface of the cylindrical PVC film, and ensuring the subsequent heat shrinkage quality.

[0076] After completing the film covering of the cylindrical battery, the transmission chain 105 continues to drive the cylindrical battery to move to the bottom of the pressure ring rod 308 through the fixed seat 108 and the moving rod 112. At this time, the above process is repeated and the position of the cylindrical battery at the top of the moving rod 112 is calibrated with the help of the V-shaped clamp 128. After the calibration is completed, the controller controls the electric push rod 110 to start and extend to the maximum distance. The output end of the electric push rod 110 drives the cylindrical battery to move upward to the maximum distance through the moving rod 112. At this time, the distance between the top of the cylindrical battery and the bottom of the pressure ring rod 308 is the shortest. After the pressure ring rod 308 moves downward and presses the insulating gasket to form an annular gasket, the distance from the annular gasket to the top of the cylindrical battery is the shortest, thereby ensuring the accuracy and stability of the falling of the annular gasket, avoiding the annular gasket from falling downward and deflecting, and further improving the accuracy of the fitting installation between the annular gasket and the top of the cylindrical battery.

[0077] When the annular gasket falls on the top of the cylindrical battery, if the pressure values ​​detected by the multiple pressure sensors 113 reach the preset pressure values, it means that the placement position of the annular gasket is accurate and coaxial with the cylindrical battery. When the pressure values ​​detected by the multiple pressure sensors 113 are not equal, it means that the placement of the annular gasket is offset and the position of the annular gasket needs to be calibrated. At this time, the controller controls the electric push rod 110 to start and continuously shorten and extend. The electric push rod 110 drives the cylindrical battery to continuously move up and down and rotate through the moving rod 112. At the same time, the controller controls the solenoid valve 110 on the side with the larger pressure value detected by the pressure sensor 113. 16 are opened one by one, while the other solenoid valves 116 are closed, and as the moving rod 112 drives the cylindrical battery to rotate, the opening position of the solenoid valve 116 is continuously adjusted and corresponds to the side with the larger pressure value detected by the pressure sensor 113, then the gas inside the top groove 109 continuously reaches the end of the annular gasket along the connecting hole 114 and the cleaning hole 115, and cooperates with the inertia of the top annular gasket when the cylindrical battery rotates, so that the annular gasket continuously moves and reaches the coaxial position with the cylindrical battery, and the pressure values ​​detected by multiple pressure sensors 113 are continuously restored to be equal, thereby ensuring the coaxiality and accuracy of the annular gasket on the top of the cylindrical battery.

[0078] After the placement of the circular battery on the top of the cylindrical battery is completed, the transmission chain 105 continues to drive the cylindrical battery to the bottom of the elastic pressing plate 317 and the annular pressing cylinder 318 through the fixed seat 108 and the moving rod 112. At this time, the pressing plate pneumatic push rod 313 starts and drives the elastic pressing plate 317 and the annular pressing cylinder 318 to move downward through the support plate 316, and calibrates and presses the annular gasket on the top of the cylindrical battery in turn. When the elastic pressing plate 317 and the annular pressing cylinder 318 are squeezed and contacted with the top of the cylindrical battery, the pressure values ​​detected by the multiple pressure sensors 113 increase and reach the set maximum pressure value. When the pressure values ​​detected by the multiple pressure sensors 113 are greater than the set maximum pressure value, the controller controls the electric push rod 110 to start shortening, and the electric push rod 110 drives the cylindrical battery downward through the moving rod 112, thereby avoiding excessive compression of the cylindrical battery with the elastic pressing plate 317 and the annular pressing cylinder 318 and causing damage to the cylindrical battery, thereby effectively improving the safety and accuracy of the cylindrical battery placement pad.

[0079] After the pad is placed, the transmission chain 105 continues to drive the cylindrical battery along the transverse hole 407 into the heat shrink box 401 through the fixed seat 108 and the moving rod 112, and the heating tube 402 is started to shrink the PVC film on the outer surface of the cylindrical battery. After the PVC film and the cylindrical battery are heat-shrunk and bonded to each other, the controller controls the electric push rod 110 to start and continuously extend and shorten. The electric push rod 110 drives the cylindrical battery to continuously move up and down and rotate through the moving rod 112, so that the cylindrical battery continuously changes the heated position inside the heat shrink box 401, and the moving rod 112 can also exert a force on the gas inside the top groove 109 when moving up and down, so that the gas continuously circulates along the connecting hole 114 and the cleaning hole 115. The gas discharged from the cleaning hole 115 is heated by the heating tube 402 inside the heat shrink box 401 to form hot air and act on the outer surface of the PVC film, further ensuring the heating uniformity and stability of the PVC film on the outer surface of the cylindrical battery, and ensuring the smoothness of the fit between the PVC film and the outer surface of the cylindrical battery.

[0080] Finally, the cylindrical battery after heat shrinkage arrives at one side of the recycling frame 505 along the recycling track 502, and the unloading pneumatic push rod 504 pushes the cylindrical battery into the recycling frame 505 to complete the recycling, and the above process is repeated to encapsulate multiple cylindrical batteries.

[0081] The device can detect the quality of cylindrical batteries in advance during the transmission of cylindrical batteries, and push out unqualified cylindrical batteries, thereby improving the subsequent coating effect of the cylindrical batteries. At the same time, it can also detect the position accuracy of the cylindrical batteries on the top of the moving rod 112, and cooperate with the V-shaped clamping plate 128 to calibrate the position of the cylindrical batteries, with higher positioning accuracy and higher positioning efficiency; at the same time, when the coating process is performed on the outer surface of the cylindrical battery, the cylindrical battery is continuously rotated and moved up and down inside the PVC film, and cooperates with the inertia of the PVC film itself and the circulation of gas inside the cleaning hole 115, so as to further improve the integrity and cleanliness of the PVC film on the outer surface of the cylindrical battery, and avoid wrinkles or offsets of the PVC film. Low fitting accuracy; when the cylindrical battery is subsequently pressed, not only can the distance between the annular gasket and the top of the cylindrical battery be reduced, thereby ensuring the accuracy of the installation of the annular gasket under its own weight, but the position of the annular gasket can also be detected, and the position of the annular gasket can be adjusted in conjunction with the internal flow and discharge volume of the cleaning hole 115 to ensure that the annular gasket and the cylindrical battery are in a coaxial position; finally, when the PVC film on the outer surface of the cylindrical battery is heat-shrunk by means of the high temperature inside the heat shrink box 401, the up and down movement and rotation of the cylindrical battery and the circulation of gas inside the cleaning hole 115 are coordinated to further improve the heat shrinkage effect of the PVC film on the outer surface of the cylindrical battery, thereby ensuring the fitting quality and flatness of the PVC film. Example

[0082] The coating method of the cylindrical battery coating equipment as described above comprises the following steps:

[0083] S1. The cylindrical battery falls on the top of the moving rod 112. When the sum of the pressure values ​​detected by the multiple pressure sensors 113 is less than the preset pressure and value, the electric push rod 110 starts to extend to the maximum value. The electric push rod 110 drives the cylindrical battery to move upward to the maximum distance through the moving rod 112 and unloads the material. When the pressure value detected by the pressure sensor 113 on one side increases, the electric push rod 110 starts to extend and drives the cylindrical battery to move upward through the moving rod 112. The thread groove 111 cooperates with the external thread 119 and drives the moving rod 112 and the cylindrical battery to rotate a corresponding angle. The side with the increased pressure value detected by the pressure sensor 113 is away from the square frame 201.

[0084] S2. When the cylindrical battery moves to the bottom of the square frame 201, the PVC film falls down to the outer surface of the cylindrical battery after being conveyed and cut. The electric push rod 110 starts and the output end continues to extend and shorten. The electric push rod 110 drives the cylindrical battery on the top to move up and down and rotate continuously through the moving rod 112. The cylindrical PVC film on the outer surface of the cylindrical battery continues to vibrate under the action of inertia, and the internal gas of the top groove 109 continues to flow along the connecting hole 114 and the cleaning hole 115. The gas discharged from the cleaning hole 115 exerts a wind cleaning effect on the cylindrical PVC film on the outer surface of the cylindrical battery.

[0085] S3. When the cylindrical battery moves to the bottom of the bottom frame 304, the electric push rod 110 starts and the output end extends to the maximum distance. The electric push rod 110 drives the cylindrical battery to move upward to the maximum distance through the moving rod 112. The pressing ring rod 308 moves downward and presses to form an annular gasket. When the pressure values ​​detected by multiple pressure sensors 113 are different, the electric push rod 110 starts and the output end continues to extend and shorten. The output end of the electric push rod 110 drives the cylindrical battery to move up and down and rotate through the moving rod 112. The solenoid valves 116 on the side with a larger pressure value detected by the pressure sensor 113 are opened one by one, and the cleaning holes 115 at the corresponding position discharge gas and apply wind force calibration to the annular gasket.

[0086] S4. When the cylindrical battery moves into the heat shrink box 401, the heating tube 402 starts and shrinks the PVC film on the outer surface of the cylindrical battery, the electric push rod 110 starts and the output end continuously extends and shortens, and the output end of the electric push rod 110 drives the cylindrical battery to move up and down and rotate through the moving rod 112. The internal gas of the top groove 109 is discharged along the connecting hole 114 and the cleaning hole 115 and is heated by the heating tube 402 to form hot air, which acts on the outer surface of the PVC film.

[0087] The coating method has high coating efficiency and good coating effect and is suitable for mass production and processing.

[0088] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0089] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Cylindrical battery film encapsulation equipment, comprising a feeding assembly (1), a film encapsulation assembly (2) being provided on one side above the feeding assembly (1), a cushioning assembly (3) being provided on the other side of the film encapsulation assembly (2), a heat shrinking assembly (4) being provided on the other side of the cushioning assembly (3), and a recovery assembly (5) being provided on the other side of the heat shrinking assembly (4). It is characterized by: The feeding assembly (1) comprises a base (101), a plurality of fixed seats (108) are movably connected above the base (101), a top groove (109) is provided at the top axis of the fixed seat (108), an electric push rod (110) is provided at the inner bottom of the top groove (109), a moving rod (112) is provided at the top output end of the electric push rod (110), a plurality of pressure sensors (113) are evenly provided at the top of the moving rod (112), a thread groove (111) is provided on the inner wall of the top groove (109), an external thread (119) is provided on the outer surface of the moving rod (112), and a plurality of cleaning holes (115) are connected to the inner bottom peripheral side surface of the top groove (109) through a connecting hole (114), and a solenoid valve (116) is provided inside the cleaning hole (115); The film sleeve assembly (2) comprises a square frame (201), a central hole (204) is provided inside the square frame (201), and a directional rod (205) is provided inside the central hole (204); The cushion placing assembly (3) comprises a bottom frame (304), and a pressure ring rod (308) is slidably connected inside the bottom frame (304); The heat shrink assembly (4) comprises a heat shrink box (401), wherein a plurality of heating tubes (402) are evenly arranged inside the heat shrink box (401); The recycling component (5) comprises a recycling frame (505); A controller is provided on one side of the base (101); a transmission frame (106) is provided above the base (101); a drive motor (102) is provided on one side of the transmission frame (106) and located at the top of the base (101); an output end of the drive motor (102) passes through the transmission frame (106) and is provided with a drive tooth (103); an inner wall on the other side of the transmission frame (106) is rotatably connected to a driven tooth (104) via a rotating shaft; the outer surfaces of the driven tooth (104) and the drive tooth (103) are transmission-connected to a transmission chain (105); a plurality of connection plates (107) are evenly provided on the outer surface of the transmission chain (105); The top of the connecting plate (107) is fixedly connected to the bottom of the fixing seat (108); a plurality of positioning seats (123) are evenly arranged on one side of the transmission frame (106); a docking plate (124) is arranged at the other end of the positioning seat (123); a distance sensor is arranged on the other side of the docking plate (124); a plurality of L-shaped plates (125) are evenly arranged on the other side of the transmission frame (106); a clamping pneumatic push rod (126) is arranged on the other side of the L-shaped plate (125); a transverse plate (127) is arranged at the output end of the clamping pneumatic push rod (126); and a V-shaped clamping plate (128) is arranged on the side of the transverse plate (127) close to the docking plate (124); The inner wall of the top groove (109) is sealingly and slidably connected to the outer surface of the moving rod (112); the external thread (119) is threadedly connected to the thread groove (111); the pressure sensor (113) is used to detect the pressure value of the top of the moving rod (112); the top of the cleaning hole (115) is inclined and directly opposite to the top of the moving rod (112); a filter screen (117) is provided inside the cleaning hole (115); a plurality of filter holes (118) are evenly arranged inside the filter screen (117); a loading frame (122) is provided on one side of the top of the base (101); a guide wheel (120) is rotatably connected to the inside of the loading frame (122) via a stepping motor; a feeding track (121) is provided at the bottom output end of the loading frame (122); the bottom of the feeding track (121) is fixedly connected to the top of the base (101); and the output end of the feeding track (121) matches the top of the fixing seat (108); One side of the square frame (201) is rotatably connected to a film roller (202) via a transmission motor, a PVC film is provided on the outer surface of the film roller (202), a guide rod (203) is provided on the side of the film roller (202) close to the square frame (201), the bottom of the guide rod (203) is fixedly connected to the top of the square frame (201), a plurality of guide rollers are evenly arranged inside the guide rod (203), a plurality of guide rollers (206) are evenly arranged on the top of the square frame (201) and on the outer surface of the center hole (204), one side of the top of the directional rod (205) is fixedly connected to the top of the square frame (201), a sealing machine (216) is provided on the inner wall of the square frame (201) and on the outer surface of the directional rod (205), and an inclined baffle (215) is provided on the bottom of the square frame (201) and on the side away from the pad placement assembly (3).

2. The cylindrical battery encapsulation device according to claim 1, characterized in that; A side frame (207) is provided on one side of the square frame (201); a rotating motor (208) is provided on the inner top of the side frame (207); a rotating wheel (209) is provided at the bottom output end of the rotating motor (208); a matching wheel (211) is rotatably connected to the inner wall of the square frame (201) and located on the outer surface of the directional rod (205); a conveyor belt (210) is transmission-connected between the rotating wheel (209) and the outer surface of the matching wheel (211); a cutter (213) is provided at the bottom of the matching wheel (211) by adjusting a pneumatic push rod (212); an annular groove (214) is provided on the outer surface of the directional rod (205); the annular groove (214) matches the cutter (213).

3. The cylindrical battery encapsulation device according to claim 1, characterized in that; A splicing frame (301) is provided on the top of the base (101), a feeding motor (302) is provided on one side of the splicing frame (301), an output end of the feeding motor (302) passes through the splicing frame (301) and is provided with a gasket roller (303), an outer surface of the gasket roller (303) is provided with an insulating gasket, a cutting pneumatic push rod (305) is provided on the top of the bottom frame (304), and a bottom output end of the cutting pneumatic push rod (305) passes through the bottom frame (304) and is provided with a push plate (309) The bottom of the push plate (309) is fixedly connected to the top of the pressure ring rod (308), the inner wall of the bottom frame (304) is provided with a limit plate (306), the inside of the limit plate (306) is provided with a docking hole (307), the inner wall of the docking hole (307) is sealed and slidably connected to the outer surface of the pressure ring rod (308), and a push-out motor (310) is provided on one side of the bottom frame (304), and the output end of the push-out motor (310) passes through the bottom frame (304) and is provided with a push-out roller (311).

4. The cylindrical battery encapsulation device according to claim 1, characterized in that; A vertical plate (312) is provided at the top of the base (101) and located on the side of the bottom frame (304) away from the film sleeve assembly (2); a tablet pressing pneumatic push rod (313) is provided at the top of the vertical plate (312); the bottom output end of the tablet pressing pneumatic push rod (313) passes through the vertical plate (312) and is provided with a support plate (316); two sleeves (314) are symmetrically provided inside the vertical plate (312); a side rod (315) is slidably connected inside the sleeve (314); the bottom of the side rod (315) is fixedly connected to the top of the support plate (316); an elastic pressing sheet (317) is provided at the bottom of the support plate (316) and on a side close to the bottom frame (304); and an annular pressing cylinder (318) is provided at the bottom of the support plate (316) and on a side away from the bottom frame (304).

5. The cylindrical battery encapsulation device according to claim 1, characterized in that; The interior of the heat shrink box (401) is provided with a transverse hole (407) extending through it, the interior of the heat shrink box (401) is provided with a plurality of heat collecting covers (403), the top of the heat shrink box (401) is provided with a plurality of heat dissipation holes (404) evenly, the top of the heat shrink box (401) is provided with a plurality of threaded rods (406) evenly, the top of the threaded rods (406) is threadedly connected to a heat dissipation cover (405), the bottom of the heat dissipation cover (405) is provided with a round rod (408), the bottom of the round rod (408) passes through the heat dissipation hole (404) and is fixedly connected to the top of the heat collecting cover (403).

6. The cylindrical battery encapsulation device according to claim 1, characterized in that; The recycling assembly (5) further comprises a movable frame (501), wherein the movable frame (501) is movably connected to one side of the base (101), and a recycling frame (505) is movably connected to the top of the movable frame (501). A recycling track (502) is provided at the output end of the heat shrink box (401) and located at the top of the base (101), and the other end of the recycling track (502) matches the recycling frame (505). A mounting seat (503) is provided at the top of the base (101), and a pneumatic push rod (504) for unloading is provided at the top of the mounting seat (503), and the output end of the pneumatic push rod (504) for unloading matches the recycling frame (505).

7. The coating method of cylindrical battery coating equipment according to claim 1 comprises the following steps, characterized in that ； S1. A cylindrical battery falls on the top of the moving rod (112). When the sum of the pressure values ​​detected by the multiple pressure sensors (113) is less than the preset pressure sum value, the electric push rod (110) starts to extend to the maximum value. The electric push rod (110) drives the cylindrical battery to move upward to the maximum distance through the moving rod (112) and unloads the battery. When the pressure value detected by the pressure sensor (113) on one side increases, the electric push rod (110) starts to extend and drives the cylindrical battery to move upward through the moving rod (112). The thread groove (111) is threadedly matched with the external thread (119) and drives the moving rod (112) and the cylindrical battery to rotate at a corresponding angle. The side where the pressure value detected by the pressure sensor (113) increases moves away from the square frame (201). S2. When the cylindrical battery moves to the bottom of the square frame (201), the PVC film falls down onto the outer surface of the cylindrical battery after being conveyed and cut, the electric push rod (110) is started and the output end is continuously extended and shortened, the electric push rod (110) drives the cylindrical battery on the top to continuously move up and down and rotate through the moving rod (112), the cylindrical PVC film on the outer surface of the cylindrical battery continuously vibrates under the action of inertia, and the gas inside the top groove (109) continuously flows along the connecting hole (114) and the cleaning hole (115), and the gas discharged from the cleaning hole (115) exerts a wind cleaning effect on the cylindrical PVC film on the outer surface of the cylindrical battery; S3, when the cylindrical battery moves to below the bottom frame (304), the electric push rod (110) is started and the output end is extended to the maximum distance, the electric push rod (110) drives the cylindrical battery to move upward to the maximum distance through the moving rod (112), the pressing ring rod (308) moves downward and presses to form an annular gasket, when the pressure values ​​detected by the multiple pressure sensors (113) are different, the electric push rod (110) is started and the output end is continuously extended and shortened, the output end of the electric push rod (110) drives the cylindrical battery to move up and down and rotate through the moving rod (112), the solenoid valves (116) on the side with the larger pressure value detected by the pressure sensor (113) are opened one by one, the cleaning holes (115) at the corresponding positions discharge gas and apply wind force calibration to the annular gasket; S4. When the cylindrical battery moves into the heat shrink box (401), the heating tube (402) starts and heat shrinks the PVC film on the outer surface of the cylindrical battery, the electric push rod (110) starts and the output end continuously extends and shortens, and the output end of the electric push rod (110) drives the cylindrical battery to move up and down and rotate through the moving rod (112), and the internal gas of the top groove (109) is discharged along the connecting hole (114) and the cleaning hole (115) and is heated by the heating tube (402) to form hot air, which acts on the outer surface of the PVC film.

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