A high-precision battery foil precision cutting machine rewinding mechanism

Abstract

The present invention relates to the technical field of battery foil processing equipment, and in particular to a winding mechanism of a high-precision battery foil precision cutting machine. A winding mechanism of a high-precision battery foil precision cutting machine includes a winding mechanism, and the winding mechanism includes an auxiliary component and two winding components. The auxiliary component includes a rotating shaft and two auxiliary units, each auxiliary unit includes a support ring and two limit disks, and each winding component includes a winding shaft. The aluminum foil on the winding shaft is in contact with the support ring. As the aluminum foil becomes thicker, the aluminum foil squeezes the support ring, and the support ring is concave. The more the limit disk leaks out, the more the limit disk contacts the aluminum foil, and the better the limiting effect of the limit disk. The present invention provides a winding mechanism of a high-precision battery foil precision cutting machine to solve the problem that the existing aluminum foil often slides and deviates during the traction conduction process, resulting in misalignment and offset during winding, and the air between the aluminum foil cannot be discharged well, affecting the winding quality.

Description

Technical Field

[0001] The invention relates to the technical field of battery foil processing equipment, and in particular to a winding mechanism of a high-precision battery foil precision cutting machine. Background Art

[0002] Aluminum foil reeling machine is a highly efficient metal processing equipment used to longitudinally cut large pieces of aluminum foil into narrow strips for supply to different industrial applications. It mainly includes unwinder: the unwinder is used to place the aluminum foil coil and gradually unwind it as required. It controls the tension through motor drive and is equipped with an automatic centering function to ensure that the aluminum foil maintains proper tension and correct position before entering the slitting process. Slitting machine: the slitting machine is the core component of the reeling machine, which is responsible for cutting wide aluminum foil into strips of required width. The dimensional accuracy and surface condition of the blade, isolation sleeve and gasket of the slitting machine directly affect the shearing quality, including width accuracy, burrs, skirts, etc. Tension device: the tension device is located after the longitudinal shearing. It controls the tension of the aluminum foil to ensure that the aluminum foil remains straight during the slitting process, avoid wrinkles or tears, and ensure the shearing quality. Winding machine: the winder adopts a double-axis staggered method to make the winding end surface neat, reduce the phenomenon of strip drawing, and make the incision smooth. In addition, it also has plate shape adjustment and length recording functions to ensure neat storage of aluminum foil and accurate length measurement.

[0003] Battery foil is a key material used in the positive electrode collector of lithium-ion batteries and is usually made of rolled aluminum foil. The production of battery foil requires high technology and strict quality control. First, the thickness and plate shape of the aluminum foil need to be controlled very accurately to ensure the consistency and performance of the battery.

[0004] For example, a Chinese invention patent with the announcement number CN110589567B provides an aluminum foil precision slitting machine, which can automatically correct the deviation of the coil by setting an automatic correction device including a correction shaft, and the correction shaft is outer-connected with a correction roller. However, the slitting machine has a complex structure and a high cost. In addition, when the aluminum foil is rolled up, the air between the aluminum foils cannot be discharged well, and the rolling is not tight. Summary of the invention

[0005] The invention provides a winding mechanism for a high-precision battery foil precision cutting machine to solve the problem that the existing aluminum foil often slides and deviates during the traction and conduction process, resulting in misalignment during winding, and the air between the aluminum foils cannot be well discharged, affecting the winding quality.

[0006] The invention discloses a high-precision battery foil precision cutting machine winding mechanism, which adopts the following technical scheme: a high-precision battery foil precision cutting machine winding mechanism, which is used for cutting and winding aluminum foil, comprises a support frame, a wire-releasing mechanism, a cutting mechanism and a winding mechanism. The wire-releasing mechanism, the cutting mechanism and the winding mechanism are sequentially arranged on the support frame along a first direction. The aluminum foil is stored on the wire-releasing mechanism, and the cutting mechanism is used for cutting the aluminum foil.

[0007] The winding mechanism includes an auxiliary component and two winding components. The auxiliary component includes a rotating shaft and two auxiliary units. The rotating shaft is arranged along the second direction. The second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction. The rotating shaft can be rotatably arranged on the support frame around its own axis. The two auxiliary units are arranged in sequence along the axis of the rotating shaft. Each auxiliary unit includes a support ring and two limit plates. The support ring is sleeved on the rotating shaft. The support ring and the rotating shaft rotate synchronously, and the support ring can be deformed. The limit plate and the rotating shaft are coaxially arranged, and the two limit plates are respectively located at both ends of the support ring.

[0008] The two winding assemblies are distributed in sequence along the circumference of the rotating shaft. Each winding assembly includes a winding shaft, which is arranged along the second direction and can rotate around its own axis. The winding shaft is used to wind up the cut aluminum foil.

[0009] Furthermore, a plurality of spring sheets are fixedly arranged on the peripheral wall of each limiting plate, and the plurality of spring sheets are distributed along the circumference of the limiting plate, and the spring sheets are deformable and elastic. Along the radial direction of the limiting plate, the two sides of the spring sheet are the first side and the second side, and the side where the spring sheet and the limiting plate are connected is the first side.

[0010] The spring piece has a first state and a second state. The first state of the spring piece is a straight plate, and the spring piece and the limit plate are on the same circumference. The radius of the circle surrounded by the multiple spring pieces is the same as the radius of the support ring. The second state of the spring piece is an arc-shaped plate, whose concave surface faces the support ring, and the spring piece is inclined, and the distance between the first side of the spring piece and the support ring is smaller than the distance between the second side of the spring piece and the support ring.

[0011] Furthermore, the winding mechanism further includes an adjustment component, which includes a support shaft and a plurality of adjustment units. The support shaft is fixedly arranged on the support frame, and the support shaft is arranged along the second direction. A plurality of first connecting rods are fixedly arranged on the support shaft, and the plurality of first connecting rods are sequentially distributed along the axial direction of the support shaft, and the first connecting rods are arranged along the radial direction of the support shaft, and a connecting ring is fixedly arranged at one end of each first connecting rod, and the connecting ring is rotatably sleeved on the rotating shaft.

[0012] A first arc groove is provided on the outer peripheral wall of the connecting ring at both ends of the support shaft. Two first arc grooves are provided on the outer peripheral wall of the connecting ring in the middle of the support shaft. The two first arc grooves on the connecting ring in the middle are sequentially distributed along the circumference of the connecting ring, and the first arc groove and the connecting ring are concentrically arranged.

[0013] Each adjustment unit includes a movable rod and a breaking and pulling block. The movable rod is arranged along the radial direction of the connecting ring, and one end of a movable rod in each adjustment unit is arranged in a first arc groove, and the movable rod can slide along the circumference of the connecting ring. The breaking and pulling block is fixedly arranged at the other end of the movable rod. An installation groove is provided in the breaking and pulling block, and a spring piece is arranged in the installation groove. A limit rod is fixedly arranged on the breaking and pulling block, and the limit rod is arranged along the second direction. The limit rod is in the support ring, and the peripheral wall of the limit rod and the inner peripheral wall of the support ring are against each other.

[0014] Furthermore, the mounting groove includes a second arc groove and two vertical grooves, the second arc groove is located in the middle of the breaking and pulling block, and the concave surface of the second arc groove faces the support ring. The two vertical grooves are located on both sides of the second arc groove along the circumference of the limit plate, and the vertical grooves and the limit plate are on the same circumference. Along the axial direction of the rotating shaft, a curved surface is provided on one side of the breaking and pulling block facing the support ring, and the curved surface is provided in parallel with the spring in the second state.

[0015] Furthermore, each first arc-shaped groove includes a first slide groove and a second slide groove, the first slide groove and the second slide groove are distributed along the circumference of the connecting ring, the first slide groove and the second slide groove are both arc-shaped, and are both coaxially arranged with the connecting ring, the first slide groove and the second slide groove are connected, and the second slide groove passes through the peripheral wall of the connecting ring.

[0016] One end of the movable rod is slidably arranged in the second slide slot, and one end of the movable rod in the second slide slot is fixedly provided with an arc rod, which is slidably arranged in the first slide slot. A first spring is arranged in the second slide slot, and the first spring connects the second slide slot and the movable rod.

[0017] Furthermore, a plurality of hollow rods are fixedly arranged on the inner circumferential wall of the support ring, the plurality of hollow rods are distributed along the circumference of the support ring, and each hollow rod is arranged along the second direction. Each auxiliary component also includes two telescopic units, the two telescopic units are sequentially distributed along the second direction, each telescopic unit includes a plurality of telescopic rods, the telescopic rods are fixedly arranged on the rotating shaft, the plurality of telescopic rods are distributed along the circumference of the rotating shaft, and each telescopic rod is arranged along the radial direction of the rotating shaft. A rotating shaft is arranged at one end of each telescopic rod, and the rotating shaft is rotatably arranged in the hollow rod. The telescopic rod can be telescoped, and a second spring is arranged in each telescopic rod.

[0018] Furthermore, the support frame is vertically arranged, and each winding assembly further comprises a connecting shaft, a first motor and two connecting rods. The connecting shaft is arranged on the support frame, the connecting shaft is arranged along the second direction, the connecting shaft can rotate around its own axis, and the winding shaft and the connecting shaft are sequentially distributed along the direction from top to bottom. One end of the connecting rod is rotatably connected to the winding shaft, and the other end of the connecting rod is rotatably connected to the connecting shaft. The first motor is fixedly arranged on the support frame, and the output shaft of the first motor is fixedly connected to the connecting shaft.

[0019] The support frame is provided with two third arc grooves on both sides along the second direction respectively. The two third arc grooves on the same side are distributed in sequence along the first direction, and the two third arc grooves are respectively arranged on both sides of the support ring.

[0020] Each winding mechanism further comprises a second motor, the second motor is fixedly arranged on the connecting rod, and a first bevel gear is fixedly arranged on the output shaft of the second motor. A second bevel gear is fixedly arranged on each winding shaft, and the second bevel gear is meshed with the first bevel gear.

[0021] Further, a third motor is fixedly arranged on the support frame, and an output shaft of the third motor is connected to the rotating shaft. A fourth motor is fixedly arranged on the support frame. The wire-releasing mechanism comprises a release shaft, which is arranged on the support frame, arranged along the second direction, and can rotate around its own axis. The output shaft of the fourth motor is fixedly connected to the release shaft, and the aluminum foil is arranged on the release shaft.

[0022] Furthermore, it also includes an auxiliary mechanism, which is arranged between the unwinding mechanism and the winding mechanism. The auxiliary mechanism includes multiple auxiliary shafts, and the auxiliary shafts are fixed on the support frame. The multiple auxiliary shafts are distributed in sequence along the first direction, and each auxiliary shaft is arranged along the second direction. The aluminum foil passes around the multiple auxiliary shafts in sequence.

[0023] Furthermore, the cutting mechanism includes an installation shaft, which is fixed on the support frame and arranged along the second direction. Two cutting assemblies are fixed on the installation shaft, and the two cutting assemblies are distributed in sequence along the axial direction of the installation shaft. Each cutting assembly includes two cutting knives, and the two cutting knives are distributed in sequence along the axial direction of the installation shaft.

[0024] The beneficial effects of the present invention are as follows: the winding mechanism of the high-precision battery foil precision cutting machine of the present invention, through the winding shaft and the deformable support ring, when working, cuts a complete aluminum foil into two aluminum foils through the cutting mechanism, and winds the two aluminum foils on the two winding shafts respectively to form an aluminum foil roll. Move the winding shaft so that the aluminum foil roll contacts the support ring. Rotate the winding shaft and the rotating shaft, and the winding shaft winds up the aluminum foil. At the beginning, the radius of the aluminum foil roll on the winding shaft is not large and can only contact the support ring. As the radius of the aluminum foil roll gradually increases, the pressure of the aluminum foil roll on the support ring gradually increases, and causes the support ring to deform, the support ring sinks inward, and wraps the aluminum foil roll.

[0025] When the aluminum foil is rolled up, it will wrap the air inside, making the aluminum foil loosely rolled up. After the aluminum foil roll contacts the support ring, the support ring can compress the aluminum foil and expel the air. As the radius of the aluminum foil roll increases, the contact area between the support ring and the aluminum foil roll increases, which makes the compression and exhaust effect better.

[0026] As the support ring sinks, the limit plate leaks out and the aluminum foil contacts the limit plate. At this time, the limit plate limits the aluminum foil to prevent it from deflecting. As the radius of the aluminum foil roll increases, the more the limit plate leaks out, the larger the contact area between the aluminum foil and the limit plate, and the better the limiting effect on the aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0029] Figure 2 A front view of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0030] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0031] Figure 4 A schematic diagram of a partial structure of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0032] Figure 5 A front view of a portion of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0033] Figure 6 for Figure 5 Sectional view at the middle BB;

[0034] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0035] Figure 8 An exploded view of a part of the structure of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0036] Fig. 9 A schematic diagram of the structure of a limit plate and a breaking and pulling block of a winding mechanism of a high-precision battery foil precision cutting machine provided by an embodiment of the present invention;

[0037] Fig.10 for Fig. 9 The enlarged view of point D in the middle;

[0038] Fig.11A schematic structural diagram of a breaking and pulling block of a winding mechanism of a high-precision battery foil precision cutting machine provided in an embodiment of the present invention.

[0039] In the figure: 100, support frame; 101, release shaft; 102, auxiliary shaft; 103, fourth motor; 104, third arc groove; 105, installation shaft; 201, winding shaft; 202, second motor; 210, support shaft; 211, first connecting rod; 212, movable rod; 213, arc rod; 214, first spring; 215, first arc groove; 216, breaking and pulling block; 2161, limiting rod; 2162, installation groove; 2163, arc surface; 2164, second arc groove; 2165, vertical groove; 217, connecting ring; 220, supporting ring; 221, third motor; 222, rotating shaft; 225, telescopic rod; 226, hollow rod; 227, limiting plate; 228, spring piece; 230, connecting shaft; 231, first motor; 232, connecting rod. DETAILED DESCRIPTION

[0040] 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.

[0041] Reference Figures 1 to 11 As shown, a high-precision battery foil precision cutting machine winding mechanism provided by an embodiment of the present invention includes a support frame 100, a wire-releasing mechanism, a cutting mechanism and a winding mechanism. The wire-releasing mechanism, the cutting mechanism and the winding mechanism are sequentially arranged on the support frame 100 along a first direction. The aluminum foil is stored on the wire-releasing mechanism, and the cutting mechanism is used to cut the aluminum foil.

[0042] The winding mechanism includes an auxiliary component and two winding components. The auxiliary component includes a rotating shaft 222 and two auxiliary units. The rotating shaft 222 is arranged along the second direction. The second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction. The rotating shaft 222 can be rotatably arranged on the support frame 100 around its own axis. The two auxiliary units are arranged in sequence along the axis of the rotating shaft 222. Each auxiliary unit includes a support ring 220 and two limit disks 227. The support ring 220 is sleeved on the rotating shaft 222. The support ring 220 and the rotating shaft 222 rotate synchronously. The support ring 220 can be deformed, and the support ring 220 is elastically deformed. The material of the support ring 220 can be aluminum alloy. The limit disk 227 and the rotating shaft 222 are coaxially arranged, and the two limit disks 227 are respectively located at both ends of the support ring 220.

[0043] The two winding assemblies are sequentially distributed along the circumference of the rotating shaft 222, and each winding assembly includes a winding shaft 201, which is arranged along the second direction and can rotate around its own axis. The winding shaft 201 is used to wind up the cut aluminum foil. The aluminum foil wound on the winding shaft 201 contacts the support ring 220, and as the thickness of the aluminum foil gradually increases, the support ring 220 is deformed.

[0044] When a complete aluminum foil passes through the cutting mechanism, it is cut into two aluminum foils by the cutting mechanism. The two aluminum foils are respectively wound on two reeling shafts 201 to form an aluminum foil roll, and the reeling shaft 201 is moved so that the aluminum foil roll contacts the support ring 220. The reeling shaft 201 and the rotating shaft 222 are rotated, and the reeling shaft 201 reels the aluminum foil. At the beginning, the radius of the aluminum foil roll on the reeling shaft 201 is not large and can only contact the support ring 220. As the radius of the aluminum foil roll gradually increases, the pressure of the aluminum foil roll on the support ring 220 gradually increases, causing the support ring 220 to deform, and the support ring 220 is concave inward and wraps the aluminum foil roll.

[0045] When the aluminum foil is rolled up, air is wrapped in it, so that the aluminum foil is not rolled up tightly. After the aluminum foil roll contacts the support ring 220, the support ring 220 can compress the aluminum foil and discharge the air. As the radius of the aluminum foil roll increases, the contact area between the support ring 220 and the aluminum foil roll increases, thereby achieving better compression and exhaust effects.

[0046] As the support ring 220 is sunken, the limiting plate 227 leaks out, and the aluminum foil contacts the limiting plate 227. At this time, the limiting plate 227 limits the aluminum foil to prevent the aluminum foil from being deflected. As the radius of the aluminum foil roll increases, the more the limiting plate 227 leaks out, and the contact area between the aluminum foil and the limiting plate 227 increases, thereby improving the limiting effect on the aluminum foil.

[0047] In this embodiment, a plurality of spring pieces 228 are fixedly arranged on the peripheral wall of each limiting plate 227. The plurality of spring pieces 228 are distributed along the circumference of the limiting plate 227. The spring pieces 228 are deformable and elastic. Along the radial direction of the limiting plate 227, the spring piece 228 has a first side and a second side, and the side where the spring piece 228 and the limiting plate 227 are connected is the first side.

[0048] The spring piece 228 has a first state and a second state. The first state of the spring piece 228 is a straight plate, and the spring piece 228 and the limiting plate 227 are on the same circumference. The radius of the circle surrounded by the multiple spring pieces 228 is the same as the radius of the support ring 220. The second state of the spring piece 228 is an arc-shaped plate, whose concave surface faces the support ring 220, and the spring piece 228 is inclined. The distance between the first side of the spring piece 228 and the support ring 220 is smaller than the distance between the second side of the spring piece 228 and the support ring 220.

[0049] In this embodiment, the winding mechanism further includes an adjustment component, which includes a support shaft 210 and a plurality of adjustment units. The support shaft 210 is fixedly disposed on the support frame 100, and the support shaft 210 is disposed along the second direction. A plurality of first connecting rods 211 are fixedly disposed on the support shaft 210, and the plurality of first connecting rods 211 are sequentially distributed along the axial direction of the support shaft 210, and the first connecting rods 211 are disposed along the radial direction of the support shaft 210, and a connecting ring 217 is fixedly disposed at one end of each first connecting rod 211, and the connecting ring 217 is rotatably sleeved on the rotating shaft 222.

[0050] A first arc groove 215 is provided on the outer peripheral wall of the connecting ring 217 at both ends of the support shaft 210. Two first arc grooves 215 are provided on the outer peripheral wall of the connecting ring 217 in the middle of the support shaft 210, and the two first arc grooves 215 on the connecting ring 217 in the middle are sequentially distributed along the circumference of the connecting ring 217, and the first arc groove 215 and the connecting ring 217 are concentrically arranged.

[0051] Each adjustment unit includes a movable rod 212 and a pull block 216. The movable rod 212 is arranged along the radial direction of the connecting ring 217, and one end of a movable rod 212 in each adjustment unit is arranged in a first arc groove 215, and the movable rod 212 can slide along the circumference of the connecting ring 217. The pull block 216 is fixedly arranged at the other end of the movable rod 212. A mounting groove 2162 is provided in the pull block 216, and a spring piece 228 is arranged in the mounting groove 2162. The pull block 216 is used to transform the spring piece 228 from a first state to a second state. A limit rod 2161 is fixedly arranged on the pull block 216, and the limit rod 2161 is arranged along the second direction. The limit rod 2161 is in the support ring 220, and the peripheral wall of the limit rod 2161 and the inner peripheral wall of the support ring 220 are against each other.

[0052] As the support ring 220 is sunken, the support ring 220 presses the limit rod 2161, thereby driving the breaking and pulling block 216 and the movable rod 212 to move, and the movable rod 212 slides in the first arc groove 215. The support ring 220 presses the breaking and pulling block 216 to enter the tangent point position, which is the position where the aluminum foil and the support ring 220 just start to contact.

[0053] In this embodiment, the mounting groove 2162 includes a second arc groove 2164 and two vertical grooves 2165. The second arc groove 2164 is located in the middle of the pull block 216, and the concave surface of the second arc groove 2164 faces the support ring 220. The two vertical grooves 2165 are located on both sides of the second arc groove 2164 along the circumference of the limit plate 227, and the vertical grooves 2165 and the limit plate 227 are on the same circumference. Along the axial direction of the rotating shaft 222, a curved surface 2163 is provided on one side of the pull block 216 facing the support ring 220, and the curved surface 2163 is arranged in parallel with the spring piece 228 in the second state.

[0054] The arc surface 2163 of the breaking and pulling block 216 contacts the support ring 220. When the aluminum foil is deflected, after the aluminum foil contacts the arc surface 2163, the aluminum foil can more easily enter the concave part of the support ring 220 under the guidance of the arc surface 2163. Then, the deflected aluminum foil is straightened by the limit plate 227 and the spring 228 to ensure the efficiency and quality of the winding. At the same time, when the aluminum foil is easier to pass through the tangent point position, the wear of the aluminum foil can also be reduced.

[0055] In this embodiment, each first arc-shaped groove 215 includes a first slide groove and a second slide groove. The first slide groove and the second slide groove are distributed along the circumference of the connecting ring 217. The first slide groove and the second slide groove are both arc-shaped and are coaxially arranged with the connecting ring 217. The first slide groove and the second slide groove are connected, and the second slide groove passes through the peripheral wall of the connecting ring 217.

[0056] One end of the movable rod 212 is slidably disposed in the second slide groove, and an arc rod 213 is fixedly disposed at one end of the movable rod 212 in the second slide groove, and the arc rod 213 is slidably disposed in the first slide groove. A first spring 214 is disposed in the second slide groove, and the first spring 214 connects the second slide groove and the movable rod 212.

[0057] In this embodiment, a plurality of hollow rods 226 are fixedly disposed on the inner circumferential wall of the support ring 220. The plurality of hollow rods 226 are distributed along the circumference of the support ring 220, and each hollow rod 226 is disposed along the second direction. The hollow rods 226 are used to support the support ring 220, and the recess of the support ring 220 is located between two adjacent hollow rods 226.

[0058] Each auxiliary component further includes two telescopic units, which are sequentially distributed along the second direction. Each telescopic unit includes a plurality of telescopic rods 225, which are fixedly arranged on the rotating shaft 222. The plurality of telescopic rods 225 are distributed along the circumference of the rotating shaft 222, and each telescopic rod 225 is arranged along the radial direction of the rotating shaft 222. A rotating shaft is arranged at one end of each telescopic rod 225, and the rotating shaft is rotatably arranged in the hollow rod 226. The telescopic rod 225 can be telescopic, and a second spring is arranged in each telescopic rod 225. When the support ring 220 is concave, the telescopic rod 225 shrinks following the deformation of the support ring 220, and the second spring is compressed. When the aluminum foil is no longer in contact with the support ring 220, the support ring 220 is reset under the action of the second spring.

[0059] In this embodiment, the support frame 100 is vertically arranged, and each winding assembly further includes a connecting shaft 230, a first motor 231 and two connecting rods 232. The connecting shaft 230 is arranged on the support frame 100, and the connecting shaft 230 is arranged along the second direction. The connecting shaft 230 can rotate around its own axis, and the winding shaft 201 and the connecting shaft 230 are sequentially distributed along the direction from top to bottom. One end of the connecting rod 232 is rotatably connected to the winding shaft 201, and the other end of the connecting rod 232 is rotatably connected to the connecting shaft 230. The first motor 231 is fixedly arranged on the support frame 100, and the output shaft of the first motor 231 is fixedly connected to the connecting shaft 230.

[0060] The support frame 100 has two third arc grooves 104 on both sides along the second direction, and the two third arc grooves 104 on the same side are sequentially distributed along the first direction, and the two third arc grooves 104 are respectively arranged on both sides of the support ring 220. The third arc groove 104 is an arc with the axis of the connecting shaft 230 as the center and the connecting rod 232 as the radius. The first motor 231 rotates to drive the connecting shaft 230 to rotate, and the connecting shaft 230 drives the reel 201 to slide in the third arc groove 104 through the connecting rod 232.

[0061] Each winding mechanism further includes a second motor 202, which is fixedly mounted on the connecting rod 232, and a first bevel gear is fixedly mounted on the output shaft of the second motor 202. A second bevel gear is fixedly mounted on each winding shaft 201, and the second bevel gear is meshed with the first bevel gear. The rotation of the second motor 202 drives the first bevel gear to rotate, and drives the winding shaft 201 to rotate around its own axis through the second bevel gear.

[0062] In this embodiment, a third motor 221 is fixedly disposed on the support frame 100 , and an output shaft of the third motor 221 is connected to the rotating shaft 222 , so that the third motor 221 drives the rotating shaft 222 to rotate. A fourth motor 103 is fixedly disposed on the support frame 100 .

[0063] The wire release mechanism includes a release shaft 101, which is arranged on the support frame 100, arranged along the second direction, and can rotate around its own axis. The output shaft of the fourth motor 103 is fixedly connected to the release shaft 101, and the aluminum foil is arranged on the release shaft 101. The fourth motor 103 drives the release shaft 101 to rotate.

[0064] In this embodiment, an auxiliary mechanism is also included. The auxiliary mechanism is arranged between the unwinding mechanism and the winding mechanism. The auxiliary mechanism includes a plurality of auxiliary shafts 102. The auxiliary shafts 102 are fixedly arranged on the support frame 100. The plurality of auxiliary shafts 102 are distributed in sequence along the first direction. Each auxiliary shaft 102 is arranged along the second direction. The aluminum foil passes around the plurality of auxiliary shafts 102 in sequence.

[0065] In this embodiment, the cutting mechanism includes an installation shaft 105, which is fixedly arranged on the support frame 100. The installation shaft 105 is arranged along the second direction. Two cutting components are fixedly arranged on the installation shaft 105. The two cutting components are distributed in sequence along the axial direction of the installation shaft 105. Each cutting component includes two cutting knives, and the two cutting knives are distributed in sequence along the axial direction of the installation shaft 105.

[0066] Working process: includes winding stage and rewinding stage.

[0067] Winding stage: put the aluminum foil on the unwinding shaft 101, and pass the aluminum foil through multiple auxiliary shafts 102 and the installation shaft 105 in sequence. When a complete aluminum foil passes through the cutting mechanism, it is cut into two aluminum foils by the cutting knife. The two aluminum foils are respectively wound on two winding shafts 201 to form an aluminum foil roll. Then start the first motor 231, the first motor 231 rotates forward to drive the connecting shaft 230 to rotate forward, and the connecting shaft 230 drives the winding shaft 201 to rotate through the connecting rod 232, so that the aluminum foil on the winding shaft 201 and the support ring 220 are against each other.

[0068] Rewinding stage: Then start the second motor 202, the third motor 221 and the fourth motor 103, the fourth motor 103 drives the unwinding shaft 101 to rotate, and then the aluminum foil is transported outward. The second motor 202 drives the rewinding shaft 201 to rotate through the second bevel gear and the first bevel gear, and the rewinding shaft 201 rotates to start rewinding the cut aluminum foil. The third motor 221 drives the rotating shaft 222 to rotate, the rotating shaft 222 drives the rotating disk to rotate synchronously, and drives the supporting ring 220 to rotate synchronously through the telescopic rod 225.

[0069] At the beginning, the radius of the aluminum foil roll on the reel 201 is not large and can only contact the support ring 220. As the radius of the aluminum foil roll gradually increases, the pressure of the aluminum foil roll on the support ring 220 gradually increases, causing the support ring 220 to deform and sag inward. At this moment, due to the support of the hollow rods 226, the support ring 220 between two adjacent hollow rods 226 is sag inward, and the sag is arc-shaped and wraps the aluminum foil roll. The telescopic rod 225 shrinks following the deformation of the support ring 220, and the second spring is compressed.

[0070] When the aluminum foil is rolled up, air is wrapped in it, so that the aluminum foil is not rolled up tightly. After the aluminum foil roll contacts the support ring 220, the support ring 220 can compress the aluminum foil and discharge the air. As the radius of the aluminum foil roll increases, the contact area between the support ring 220 and the aluminum foil roll increases, thereby achieving better compression and exhaust effects.

[0071] As the support ring 220 is sunken, the limiting plate 227 leaks out, and the aluminum foil contacts the limiting plate 227. At this time, the limiting plate 227 limits the aluminum foil to prevent the aluminum foil from being deflected. As the radius of the aluminum foil roll increases, the more the limiting plate 227 leaks out, and the contact area between the aluminum foil and the limiting plate 227 increases, thereby improving the limiting effect on the aluminum foil.

[0072] When in the winding stage, the aluminum foil and the support ring 220 are tangent. At this time, a spring piece 228 at the tangent position of the aluminum foil and the support ring 220 is in the second arc groove 2164 in the bending and pulling block 216. The bending and pulling block 216 bends the spring piece 228 so that the spring piece 228 is in the second state.

[0073] When in the winding stage, as the support ring 220 is sunken, the support ring 220 presses the limit rod 2161, thereby driving the breaking and pulling block 216 and the movable rod 212 to move, and the movable rod 212 slides in the second slide groove. The support ring 220 presses the breaking and pulling block 216 to the point of entry, which is the position where the aluminum foil and the support ring 220 just start to contact. The spring piece 228 that is separated from the second arc groove 2164 returns to the first state from the second state under the action of its own elastic force.

[0074] The arc surface 2163 of the breaking and pulling block 216 contacts the support ring 220. When the aluminum foil is deflected, after the aluminum foil contacts the arc surface 2163, the aluminum foil can more easily enter the concave part of the support ring 220 under the guidance of the arc surface 2163, and then the deflected aluminum foil is straightened by the limit plate 227 and the spring 228 to ensure the efficiency and quality of the winding. At the same time, when the aluminum foil is easier to pass through the tangent point position, the wear of the aluminum foil can also be reduced.

[0075] When the winding is finished, the first motor 231 is started again, the first motor 231 is reversed, and drives the connecting shaft 230 to rotate in the opposite direction, and the connecting shaft 230 drives the winding shaft 201 to rotate through the connecting rod 232, so that the aluminum foil on the winding shaft 201 is away from the supporting ring 220. Then, under the action of the second spring, the telescopic rod 225 is extended and reset, the supporting ring 220 is reset, and under the action of the first spring 214, the movable rod 212 is reset.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision battery foil precision cutting machine winding mechanism, used for cutting and winding aluminum foil, characterized in that: It includes a support frame, a wire-releasing mechanism, a cutting mechanism and a winding mechanism; the wire-releasing mechanism, the cutting mechanism and the winding mechanism are sequentially arranged on the support frame along a first direction; the aluminum foil is stored on the wire-releasing mechanism, and the cutting mechanism is used to cut the aluminum foil; The winding mechanism includes an auxiliary component and two winding components; the auxiliary component includes a rotating shaft and two auxiliary units, the rotating shaft is arranged along the second direction, the second direction and the first direction are both horizontal directions, and the second direction is perpendicular to the first direction; the rotating shaft can be rotatably arranged on the support frame around its own axis; the two auxiliary units are arranged in sequence along the axis of the rotating shaft, each auxiliary unit includes a supporting ring and two limiting disks, the supporting ring is sleeved on the rotating shaft, the supporting ring and the rotating shaft rotate synchronously, and the supporting ring can be deformed; the limiting disk and the rotating shaft are coaxially arranged, and the two limiting disks are respectively located at both ends of the supporting ring; The two winding assemblies are sequentially distributed along the circumference of the rotating shaft, and each winding assembly comprises a winding shaft, which is arranged along the second direction and can rotate around its own axis, and is used to wind up the cut aluminum foil; A plurality of spring sheets are fixedly arranged on the peripheral wall of each limiting plate, and the plurality of spring sheets are distributed along the circumference of the limiting plate, and the spring sheets are deformable and elastic; along the radial direction of the limiting plate, the two sides of the spring sheet are the first side and the second side, and the side where the spring sheet and the limiting plate are connected is the first side; The spring piece has a first state and a second state. The first state of the spring piece is a straight plate, and the spring piece and the limit plate are on the same circumference; and the radius of the circle surrounded by the multiple spring pieces is the same as the radius of the support ring; the second state of the spring piece is an arc-shaped plate, and its concave surface faces the support ring, and the spring piece is inclined, and the distance between the first side of the spring piece and the support ring is smaller than the distance between the second side of the spring piece and the support ring; The winding mechanism also includes an adjustment component, which includes a support shaft and a plurality of adjustment units; the support shaft is fixedly arranged on the support frame, and the support shaft is arranged along the second direction; a plurality of first connecting rods are fixedly arranged on the support shaft, and the plurality of first connecting rods are sequentially distributed along the axial direction of the support shaft, and the first connecting rods are arranged along the radial direction of the support shaft, and a connecting ring is fixedly arranged at one end of each first connecting rod, and the connecting ring is rotatably sleeved on the rotating shaft; A first arc groove is provided on the outer peripheral wall of the connecting ring at both ends of the support shaft; two first arc grooves are provided on the outer peripheral wall of the connecting ring in the middle of the support shaft, and the two first arc grooves on the connecting ring in the middle are sequentially distributed along the circumference of the connecting ring, and the first arc groove and the connecting ring are concentrically arranged; Each adjustment unit includes a movable rod and a breaking and pulling block; the movable rod is arranged along the radial direction of the connecting ring, one end of a movable rod in each adjustment unit is arranged in a first arc-shaped groove, and the movable rod can slide along the circumferential direction of the connecting ring; the breaking and pulling block is fixedly arranged at the other end of the movable rod; a mounting groove is provided in the breaking and pulling block, and a spring piece is arranged in the mounting groove; a limit rod is fixedly arranged on the breaking and pulling block, the limit rod is arranged along the second direction, the limit rod is in the support ring, and the peripheral wall of the limit rod and the inner peripheral wall of the support ring are against each other; The mounting groove includes a second arc groove and two vertical grooves, the second arc groove is located in the middle of the breaking and pulling block, and the concave surface of the second arc groove faces the support ring; the two vertical grooves are located on both sides of the second arc groove along the circumference of the limit plate, and the vertical grooves and the limit plate are on the same circumference; along the axial direction of the rotating shaft, a curved surface is provided on one side of the breaking and pulling block facing the support ring, and the curved surface is arranged in parallel with the spring piece in the second state; Each first arc-shaped groove includes a first slide groove and a second slide groove, the first slide groove and the second slide groove are distributed along the circumference of the connecting ring, the first slide groove and the second slide groove are both arc-shaped, and are both coaxially arranged with the connecting ring, the first slide groove and the second slide groove are connected, and the second slide groove passes through the peripheral wall of the connecting ring; one end of the movable rod is slidably arranged in the second slide groove, and an arc-shaped rod is fixedly arranged at one end of the movable rod in the second slide groove, and the arc-shaped rod is slidably arranged in the first slide groove; a first spring is arranged in the second slide groove, and the first spring connects the second slide groove and the movable rod; A plurality of hollow rods are fixedly arranged on the inner peripheral wall of the support ring, the plurality of hollow rods are distributed along the circumference of the support ring, and each hollow rod is arranged along the second direction; Each auxiliary assembly further includes two telescopic units, the two telescopic units are sequentially distributed along the second direction, each telescopic unit includes a plurality of telescopic rods, the telescopic rods are fixedly arranged on the rotating shaft, the plurality of telescopic rods are distributed along the circumference of the rotating shaft, and each telescopic rod is arranged along the radial direction of the rotating shaft; a rotating shaft is arranged at one end of each telescopic rod, and the rotating shaft is rotatably arranged in the hollow rod; the telescopic rods can be telescoped, and a second spring is arranged in each telescopic rod; The support frame is arranged vertically, and each winding assembly further comprises a connecting shaft, a first motor and two connecting rods; the connecting shaft is arranged on the support frame, the connecting shaft is arranged along the second direction, the connecting shaft can rotate around its own axis, and the winding shaft and the connecting shaft are sequentially distributed along the direction from top to bottom; one end of the connecting rod is rotatably connected to the winding shaft, and the other end of the connecting rod is rotatably connected to the connecting shaft; the first motor is fixedly arranged on the support frame, and the output shaft of the first motor is fixedly connected to the connecting shaft; The support frame is provided with two third arc grooves on both sides along the second direction, and the two third arc grooves on the same side are distributed in sequence along the first direction, and the two third arc grooves are respectively arranged on both sides of the support ring; each winding mechanism also includes a second motor, the second motor is fixedly arranged on the connecting rod, and the first bevel gear is fixedly arranged on the output shaft of the second motor; a second bevel gear is fixedly arranged on each winding shaft, and the second bevel gear is meshed with the first bevel gear.

2. The high-precision battery foil precision cutting machine winding mechanism according to claim 1 is characterized by: A third motor is fixedly arranged on the support frame, and an output shaft of the third motor is connected to the rotating shaft; a fourth motor is fixedly arranged on the support frame; The wire-releasing mechanism comprises a release shaft, which is arranged on the support frame, arranged along the second direction, and can rotate around its own axis; the output shaft of the fourth motor is fixedly connected to the release shaft, and the aluminum foil is arranged on the release shaft.

3. The high-precision battery foil precision cutting machine winding mechanism according to claim 1 is characterized in that: It also includes an auxiliary mechanism, which is arranged between the unwinding mechanism and the winding mechanism. The auxiliary mechanism includes multiple auxiliary shafts, which are fixed on the support frame. The multiple auxiliary shafts are distributed in sequence along the first direction, and each auxiliary shaft is arranged along the second direction. The aluminum foil passes around the multiple auxiliary shafts in sequence.

4. The high-precision battery foil precision cutting machine winding mechanism according to claim 1 is characterized by: The cutting mechanism includes a mounting shaft, which is fixed on a support frame and arranged along a second direction. Two cutting assemblies are fixed on the mounting shaft, and the two cutting assemblies are distributed in sequence along the axial direction of the mounting shaft. Each cutting assembly includes two cutting knives, and the two cutting knives are distributed in sequence along the axial direction of the mounting shaft.

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