Copper foil coiling device capable of automatically adjusting material pressing arm and control method

Abstract

The invention relates to the technical field of copper foil coiling devices, in particular to a copper foil coiling device with an automatically adjusted material pressing arm, which comprises a copper foil coiling machine used for continuously coiling slit to-be-coiled copper foil to form one or more copper foil coils; the positioning and winding mechanism is used for positioning the copper foil to be wound and the copper foil roll, and the rotating central axis of the positioning and winding mechanism is parallel to the central axis of the winding shaft; the distance measuring mechanism is used for measuring the radius variation of the copper foil roll; the driving mechanism is detachably connected with the positioning and winding mechanism; and the control system is used for controlling the driving mechanism to intermittently drive the positioning and roll-dividing mechanism to rotate according to the radius variable quantity of the copper foil roll measured by the distance measuring mechanism. According to the copper foil coiling machine, to-be-coiled copper foils with different thicknesses are coiled in a contact mode or a non-contact mode, one machine has two purposes, meanwhile, the problems of deformation, lateral displacement and the like of the to-be-coiled copper foils are effectively avoided, and the coiling yield of the copper foils is increased. The invention also correspondingly discloses a control method.

Description

Technical Field

[0001] The present invention relates to the technical field of copper foil winding devices, and in particular to a copper foil winding device and method with automatic adjustment of a pressing arm. Background Art

[0002] With the continuous development of the chip industry and green energy industry, the demand for soft connectors is increasing day by day. The thickness of the soft connector is 0.03-0.1mm copper foil material, which is increasing at a geometric rate. The final slitting and coiling process of this type of material production is particularly important. If there are burrs, hooks, ruffles, indentations, creases, and pulling deformation on the edges, the soft connector will be unusable. Therefore, how to ensure the shearing quality is particularly important.

[0003] There are two ways to take up the copper foil after slitting: 1. Pulling and shearing (pulling the copper foil through the slitting shears through the reel). After the copper foil is slit by the pulling and shearing, it is taken up by pulling and rolling. A resin plate is placed between each roll to block the copper foil and ensure that there is no displacement when the copper foil is slitting. Due to the release of the tension and plate shape variables after the copper foil is slid, the copper foil at the ends of the coiling position will have insufficient tension after the diameter exceeds 300mm. The problems of looseness, tower-shaped deformation, and collapse will occur frequently. At this time, the resin plate and the end surface of the copper foil will also frequently scratch each other. The copper foil can only be taken up in small rolls, which seriously affects the production capacity and product yield. 2. The copper foil is sheared by the shearing friction of the slitting shear. There is no external pulling force on the copper foil. After the tension is established on the tension table, the mechanical pressure arm presses down. Due to the heavy weight of the mechanical pressing arm, the copper foil is completely in contact with the shaft on which the iron separator is installed. The existing slitting shearing and pressing arm is lifted up, relying entirely on the pulling strength generated by the increase in the diameter of the copper foil collection roll. The pressing arm is forcibly lifted. At this time, the copper foil is completely in contact with the pressing arm shaft, and the copper foil will inevitably be deformed, scratched, ruffled, curled, lateral shifted, etc., resulting in an increase in the scrap rate of the copper foil roll and the direct scrapping of the copper foil. Summary of the invention

[0004] In order to solve at least one of the above technical problems, the present invention proposes

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] A first aspect of the present invention provides a copper foil winding device with automatic adjustment of a pressing arm, comprising:

[0007] A copper foil coiler, wherein the copper foil coiler is provided with a coiling shaft for continuously winding the slit copper foil to be coiled to form one or more copper foil coils;

[0008] A positioning and reeling mechanism, used for positioning the copper foil and the copper foil roll to be wound, wherein the positioning and reeling mechanism is rotatably arranged on the upper part of the copper foil roll, and the rotation center axis of the positioning and reeling mechanism is parallel to the center axis of the reeling shaft;

[0009] Distance measuring mechanism, used to measure the radius change of the copper foil roll;

[0010] A driving mechanism, wherein the driving mechanism is detachably connected to the positioning and rolling mechanism;

[0011] A control system, used for controlling the driving mechanism to intermittently drive the positioning and reeling mechanism to rotate according to the radius change of the copper foil roll measured by the distance measuring mechanism;

[0012] When the thickness of the copper foil to be rolled is 0.03-0.1 mm, the driving mechanism is connected to the positioning and rolling mechanism, and controls the first distance between the positioning and rolling mechanism and the copper foil to be rolled, and when the radius variation reaches a set value, the driving mechanism drives the positioning and rolling mechanism to rotate, so that the positioning and rolling mechanism is rotated and lifted by a second distance relative to the surface of the copper foil to be rolled, and the first distance is greater than the second distance;

[0013] When the thickness of the copper foil to be rolled is greater than 0.1 mm, the driving mechanism is separated from the positioning and rolling mechanism, the positioning and rolling mechanism contacts the copper foil to be rolled, and the pressure applied by the positioning and rolling mechanism to the copper foil to be rolled is adjusted according to the thickness of the copper foil to be rolled.

[0014] Preferably, the positioning and rolling mechanism comprises:

[0015] A first rotating shaft, detachably connected to the driving mechanism, wherein the central axis of the first rotating shaft is parallel to the central axis of the winding shaft;

[0016] A material pressing arm is symmetrically fixedly arranged on the first rotating shaft, and the material pressing arm and the first rotating shaft form a first frame body and a second frame body connected to each other;

[0017] A pressing shaft, arranged between the first frame and the first rotating shaft, wherein the central axis of the pressing shaft is parallel to the central axis of the first rotating shaft and / or the winding shaft;

[0018] The coiling components are arranged at intervals along the central axis of the pressing shaft and are used for coiling and positioning the copper foil to be coiled and the copper foil roll;

[0019] The counterweight assembly is arranged on the second frame body and is located on both sides of the first rotating shaft together with the pressing shaft.

[0020] Preferably, the volume separation component comprises:

[0021] Separators are arranged at intervals along the central axis direction of the pressing shaft, the distance between adjacent separators is slightly larger than the width of the copper foil to be wound, the lower part of the separator is lower than the surface of the copper foil to be wound and / or the copper foil roll to form an effective working surface, and the radial width of the effective working surface along the separator is not less than the second distance;

[0022] A splitting sleeve is a rotating sleeve disposed outside the pressing shaft, and the splitting sleeve is located between adjacent separators and / or between the separators and the two ends of the pressing shaft, and is used to position and fix the separators according to the width of the copper foil to be rolled.

[0023] Preferably, the counterweight assembly comprises:

[0024] A counterweight bin having a plurality of counterweight slots, the counterweight bin being arranged between the second frame;

[0025] A counterweight block is movably inserted in the counterweight slot, and the weight ratio on both sides of the first rotating shaft is adjusted by increasing or decreasing the number of the counterweight blocks.

[0026] Preferably, the radius variation range is 4-5 mm, and the first distance and the second distance range are 4-5 mm.

[0027] Preferably, the rotating end of the pressing shaft is rotatably connected to the proximal end of the first frame body close to the copper foil coiler, and the free end of the pressing shaft is detachably connected to the distal end of the first frame body away from the copper foil coiler;

[0028] When disassembling or installing the splitting assembly, the free end of the pressing shaft rotates away from or toward the distal end of the first frame body with the rotating end of the pressing shaft as the rotation center;

[0029] A first mounting groove with an opening is provided at the distal end of the first frame, and the free end of the pressing shaft is rotatably disposed in the first mounting groove;

[0030] A second mounting groove having an opening in the same direction as the opening of the first frame is provided at the proximal end of the first frame, and the rotating end of the pressing shaft is detachably disposed in the second mounting groove;

[0031] The first mounting groove and the second mounting groove are both provided with detachable fixing parts for fixing the two ends of the pressing shaft.

[0032] Preferably, the driving mechanism comprises:

[0033] a second rotation axis, coaxial with the first rotation axis;

[0034] A driven gear, sleeved and fixed on the second rotating shaft;

[0035] A spline sleeve, disposed between the second rotating shaft and the first rotating shaft, and used for connecting and separating the first rotating shaft and the second rotating shaft;

[0036] A driving motor is connected to the control system, and an output shaft sleeve of the driving motor is fixed with a driving gear meshing with the outside of the driven gear.

[0037] The distance measuring mechanism comprises a laser distance meter and a bracket for fixing the laser distance meter. The laser distance meter is arranged in the radial direction of the copper foil roll, and the laser distance meter is connected to the control system.

[0038] A second aspect of the present invention provides a control method for the copper foil winding device with automatic adjustment of the pressing arm as described in the first aspect, comprising the following steps:

[0039] S1, setting the number and spacing of separators according to the number and width of the copper foil to be rolled;

[0040] S2, when the thickness of the copper foil to be rolled is 0.03-0.1 mm, rotating the first rotating shaft to adjust the distance between the pressing shaft and the surface of the copper foil to be rolled to a first distance, and connecting the driving mechanism to the first rotating shaft;

[0041] S3, adjusting the number of counterweights so that the ratio of the mass of the counterweights on one side of the first rotating shaft to the mass of the pressing shaft and the winding assembly on the other side is 0.9:1;

[0042] S4, setting a preset radius for pre-winding the copper foil roll in the control system, and setting a response value of the driving mechanism to the radius change; starting the copper foil coiler, and obtaining the radius change of the copper foil roll through the distance measuring mechanism;

[0043] S5, the control system obtains the radius change, and when the radius change reaches a preset value, the control system controls the driving mechanism to drive the first rotating shaft to rotate, and drives the pressing shaft to rotate and lift a second distance;

[0044] S6, repeating the above step S5 until the sum of the radius changes measured by the distance measuring mechanism is equal to the preset radius, and the control system turns off the copper foil coiler and other supporting equipment;

[0045] S7, separating the first rotating shaft from the driving mechanism, rotating the positioning and reeling mechanism until the effective working surface of the separator is separated from the copper foil roll, and removing the copper foil roll from the take-up shaft.

[0046] Preferably, the method comprises the following steps:

[0047] S1', setting the number and spacing of separators according to the number and width of the copper foil to be rolled;

[0048] S2', when the thickness of the copper foil to be rolled up is greater than 0.1 mm, separating the driving mechanism from the first rotating shaft;

[0049] S3', adjusting the number of counterweight blocks so that the ratio of the mass of the counterweight assembly on one side of the first rotating shaft to the mass of the pressing shaft and the winding assembly on the other side gradually decreases from 0.9:1 to 0:1 as the thickness of the copper foil roll to be wound increases;

[0050] S4', setting a preset radius for pre-coiling the copper foil roll in the control system, starting the copper foil coiler, and obtaining a radius change of the copper foil roll through the distance measuring mechanism;

[0051] S5', the control system obtains the radius change amount until the sum of the radius change amounts measured by the distance measuring mechanism is equal to the preset radius, and the control system shuts down the copper foil coiler and other supporting equipment;

[0052] S6', rotating the positioning and reeling mechanism until the effective working surface of the separator is separated from the copper foil roll, and removing the copper foil roll from the take-up shaft.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] The present invention provides a detachably connected driving mechanism and a positioning and reeling mechanism, and for copper foils of different thicknesses to be reeled, the positioning and reeling mechanism and the copper foil to be reeled are reeled in two different ways: contact or non-contact, which can effectively avoid deformation, scratches, ruffles, curling, lateral shift and other problems of the copper foil to be reeled, and significantly improve the yield rate of copper foil reeling. At the same time, the positioning and reeling mechanism positions the copper foil, so that the reeled copper foil has a relatively uniform outer diameter. In addition, the present invention realizes dual-purposes of one machine, and improves the flexibility of using the copper foil reeling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a structural schematic diagram of a copper foil winding device with automatic adjustment of the pressing arm;

[0056] Figure 2 It is a structural schematic diagram of a copper foil winding device with automatic adjustment of the pressing arm;

[0057] Figure 3 A top view of a copper foil winding device with automatic adjustment of the pressing arm;

[0058] Figure 4 It is a side view of a copper foil winding device with automatic adjustment of the pressing arm;

[0059] Figure 5 It is a front view of the separator in the present invention;

[0060] Figure 6 is a side view of the separator in the present invention;

[0061] Figure 7 It is a structural schematic diagram of the counterweight bin in the present invention;

[0062] Figure 8 It is a structural schematic diagram of the counterweight block in the present invention;

[0063] Fig. 9 This is a flow chart of a control method for a copper foil winding device when the thickness of the copper foil to be wound is 0.03-0.1 mm in the present invention;

[0064] Fig.10 It is a flow chart of a control method of a copper foil winding device when the thickness of the copper foil to be wound is greater than 0.1 mm in the present invention;

[0065] In the figure: 10, copper foil coiling machine; 101, coiling shaft;

[0066] 20. Positioning and rolling mechanism; 201. First rotating shaft; 202. Pressing arm; 2021. First frame; 20211. First mounting slot; 2022. Second frame; 20212. Second mounting slot; 2023. Fixing member; 203. Pressing shaft; 204. Rolling assembly; 2041. Separating sheet; 2042. Splitting sleeve; 205. Counterweight assembly; 2051. Counterweight bin; 20511. Counterweight slot; 2052. Counterweight block; 30. Distance measuring mechanism; 301. Laser rangefinder; 302. Bracket; 40. Driving mechanism; 401. Second rotating shaft; 402. Driven gear; 403. Spline sleeve; 404. Driving motor; 405. Driving gear; 50. Control system; 60. Display screen. DETAILED DESCRIPTION

[0067] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention.

[0068] Embodiment 1

[0069] Please refer to Figure 1-7 As shown, a copper foil winding device with automatic adjustment of a pressing arm 202 comprises:

[0070] A copper foil coiler 10 is provided with a coiling shaft 101 for continuously winding the slit copper foil to be wound up to form one or more copper foil rolls;

[0071] The positioning and reeling mechanism 20 is used to position the copper foil to be reeled and the copper foil roll. The positioning and reeling mechanism 20 is rotatably arranged on the upper part of the copper foil roll. The rotation center axis of the positioning and reeling mechanism 20 is parallel to the center axis of the reeling shaft 101.

[0072] The distance measuring mechanism 30 is used to measure the radius change of the copper foil roll;

[0073] A driving mechanism 40, which is detachably connected to the positioning and rolling mechanism 20;

[0074] The control system 50 is used to control the driving mechanism 40 to intermittently drive the positioning and reeling mechanism 20 to rotate according to the radius change of the copper foil roll measured by the distance measuring mechanism 30.

[0075] It should be noted that the copper foil winding device of this embodiment is different from the prior art in that different methods can be used to wind copper foils of different thicknesses to achieve a uniform outer diameter of the wound copper foil roll and a high yield of the copper foil winding.

[0076] Specifically, when the thickness of the copper foil to be rolled up is 0.03-0.1 mm, the driving mechanism 40 is connected to the positioning and rolling mechanism 20, and controls the positioning and rolling mechanism 20 to have a first distance from the copper foil to be rolled up, and when the radius change reaches a set value, the driving mechanism 40 drives the positioning and rolling mechanism 20 to rotate, so that the positioning and rolling mechanism 20 rotates and lifts a second distance relative to the surface of the copper foil to be rolled up, and the first distance is greater than the second distance.

[0077] When the thickness of the copper foil to be rolled is greater than 0.1 mm, the driving mechanism 40 is separated from the positioning and rolling mechanism 20, and the positioning and rolling mechanism 20 contacts the copper foil to be rolled, and the pressure applied by the positioning and rolling mechanism 20 to the copper foil to be rolled is adjusted according to the thickness of the copper foil to be rolled.

[0078] This embodiment provides a detachably connected driving mechanism 40 and a positioning and reeling mechanism 20, and for copper foils of different thicknesses to be reeled, the positioning and reeling mechanism 20 and the copper foil to be reeled are reeled in two different ways: contact or non-contact, which can effectively avoid deformation, scratches, ruffles, curling, side shifting and other problems of the copper foil to be reeled, and significantly improve the yield rate of copper foil reeling. At the same time, through the positioning effect of the positioning and reeling mechanism 20 on the copper foil, the reeled copper foil has a relatively uniform outer diameter.

[0079] Please refer to Figure 1 and Figure 2 As shown, the positioning and rolling mechanism 20 includes:

[0080] A first rotating shaft 201 is detachably connected to the driving mechanism 40, and the central axis of the first rotating shaft 201 is parallel to the central axis of the winding shaft 101;

[0081] The pressing arm 202 is symmetrically fixed on the first rotating shaft 201, and the pressing arm 202 and the first rotating shaft 201 form a first frame 2021 and a second frame 2022 that are connected to each other;

[0082] The pressing shaft 203 is disposed between the first frame 2021 and away from the first rotating shaft 201, and the central axis of the pressing shaft 203 is parallel to the central axis of the first rotating shaft 201 and / or the winding shaft 101;

[0083] The reeling components 204 are arranged at intervals along the central axis direction of the pressing shaft 203 and are used to reel and position the copper foil to be wound and the copper foil rolls.

[0084] For details, please refer to Figure 3-Figure 6 As shown, the volume splitting component 204 in this embodiment includes: the volume splitting component 204 includes:

[0085] The separators 2041 are arranged at intervals along the central axis direction of the pressing shaft 203, the distance between adjacent separators 2041 is slightly larger than the width of the copper foil to be wound, the lower part of the separator 2041 is lower than the surface of the copper foil to be wound and / or the copper foil roll to form an effective working surface, and the radial width of the effective working surface along the separator 2041 is not less than the second distance;

[0086] The dividing sleeve 2042 is rotatably mounted outside the pressing shaft 203 and is located between adjacent separators 2041 and / or between the separators 2041 and both ends of the pressing shaft 203 to position and fix the separators 2041 according to the width of the copper foil to be rolled.

[0087] It should be noted that, in the present embodiment, the separator 2041 is disc-shaped, wherein the middle part of the separator 2041 has a mounting hole with the same radius as or slightly larger than the radius of the pressing shaft 203. In this way, when the separator 2041 is sleeved on the outer periphery of the pressing shaft 203, it can fit with the pressing shaft 203 to avoid shaking during the working process and contacting the copper foil or copper foil roll to be wound, causing damage to it and affecting the yield of the copper foil roll.

[0088] In this embodiment, the radial width of the effective working surface of the separator 2041 is designed to be 15 mm. To ensure that the effective working surface is at least partially located on the lower surface of the copper foil to be rolled. In this embodiment, the radius variation of the copper foil roll is in the range of 4-5 mm, the first distance is in the range of 4-5 mm, and the second distance of the pressing shaft 203 is in the range of 4-5 mm.

[0089] The first distance being greater than the second distance should be understood to mean that within a limited range, the value of the first distance is greater than the second distance. For example, the first distance is 4.8 mm and the second distance is 4.2 mm.

[0090] Of course, the radial width of the effective working surface can be selected and changed according to actual needs to achieve effective positioning of the copper foil and the copper foil roll.

[0091] In addition, the thickness of the separator 2041 in this embodiment gradually decreases from the outside of the effective working surface (the position where the radius of the effective surface is larger) to the outermost edge of the separator 2041 (the position where the radius of the separator 2041 is the largest). That is, the cross-section of the outer edge of the separator forms an isosceles trapezoidal shape. As a result, the distance between the non-effective working surface of the separator 2041 and the copper foil roll and the copper foil is relatively large. Under the premise of not affecting the winding effect and positioning effect, it can effectively avoid the copper foil roll and the copper foil to be wound up from contacting the separator 2041 to cause necessary damage, further improving the yield rate of the copper foil roll.

[0092] The above-mentioned split sleeve 2042 is a hollow cylinder, and the inner diameter of the cylinder is equal to or slightly larger than the outer diameter of the pressing shaft 203. Considering that the width of the copper foil to be rolled may be different, the split sleeve 2042 in this embodiment also has a variety of lengths. Of course, a plurality of split sleeves 2042 of different lengths can also be used in combination so that the distance between adjacent separators 2041 is slightly larger than the width of the copper foil to be rolled. Slightly larger here can be understood as less than 0.5mm, so that the copper foil to be rolled can be prevented from always rubbing against the separator 2041, and the shaking of the copper foil along the axial direction of the pressing shaft 203 can be controlled within the allowed range, that is, the uniformity of the outer diameter of the copper foil roll is not affected.

[0093] Considering the durability of the equipment, in this embodiment, the separator 2041 is made of stainless steel and the dividing sleeve 2042 is made of nylon.

[0094] The counterweight assembly 205 is disposed on the second frame 2022 , and is located on both sides of the first rotating shaft 201 together with the pressing shaft 203 .

[0095] For details, please refer to Figure 7 and Figure 8 As shown, in this embodiment, the above-mentioned counterweight assembly 205 includes:

[0096] The counterweight bin 2051 has a plurality of counterweight slots 20511, and the counterweight bin 2051 is disposed between the second frame 2022;

[0097] The counterweight block 2052 is movably inserted into the counterweight slot 20511 , and the weight ratio on both sides of the first rotating shaft 201 can be adjusted by increasing or decreasing the number of the counterweight blocks 2052 .

[0098] It should be noted that partition blocks are correspondingly arranged on both sides of the inner wall of the above-mentioned counterweight bin 2051, so as to divide the counterweight bin 2051 into a plurality of independent counterweight slots 20511.

[0099] Please refer to Figure 8 As shown, in order to facilitate the placement and removal of the counterweight 2052, a through hole is provided on the upper portion of the counterweight 2052 in this embodiment, so that the operator can grasp it with his hands. The through hole may be in a square shape or in a plurality of round holes for fingers to be inserted into. The counterweight 2052 in this embodiment is made of metal, such as stainless steel. The quality of the counterweight 2052 may be selected according to actual needs, and this application does not limit this.

[0100] Please refer to Figure 1 and Figure 4 As shown, in order to facilitate the disassembly and assembly of the pressing shaft 203 and also facilitate the installation of the separator 2041 and the dividing sleeve 2042, the rotating end of the pressing shaft 203 in this embodiment is rotatably connected to the proximal end of the first frame 2021 close to the copper foil coiler 10, and the free end of the pressing shaft 203 is detachably connected to the distal end of the first frame 2021 away from the copper foil coiler 10;

[0101] When the splitting assembly is disassembled or installed, the free end of the pressing shaft 203 rotates away from or toward the distal end of the first frame body 2021 with the rotating end of the pressing shaft 203 as the rotation center.

[0102] Specifically, a first mounting groove 20211 having an opening is provided at the distal end of the first frame body 2021, and the free end of the pressing shaft 203 is rotatably set in the first mounting groove 20211; a second mounting groove 20212 having an opening in the same direction as the opening of the first frame body 2021 is provided at the proximal end of the first frame body 2021, and the rotating end of the pressing shaft 203 is detachably set in the second mounting groove 20212; the first mounting groove 20211 and the second mounting groove 20212 are both provided with detachable fixing parts 2023 for fixing the two ends of the pressing shaft 203.

[0103] It should be noted that the pressing shaft 203 in this embodiment includes a fixed shaft and a shaft sleeve rotatably sleeved on the outside of the fixed shaft, wherein the separator 2041 and the dividing sleeve 2042 are both sleeved on the outer circumference of the fixed shaft.

[0104] In order to realize the rotation of the pressing shaft 203 around the rotating end, the rotating end of the fixed shaft in this embodiment is provided with a rotating hole, and cooperates with the pin shaft to realize the rotation of the free end of the fixed shaft around the pin shaft. Obviously, the pin shaft should be perpendicular to the opening direction of the first installation groove 20211.

[0105] The fixing member 2023 includes a fixing block, which is fixed to the first frame 2021 and the second frame 2022 by bolts, thereby forming a closed space with the first mounting groove 20211 and the second mounting groove 20212 to prevent the pressing shaft 203 from escaping from the first mounting groove 20211 and the second mounting groove 20212.

[0106] The opening direction of the first mounting groove 20211 and the second mounting groove 20212 can be horizontal or vertical upward or at any upward angle between horizontal and vertical. Considering that the free end of the pressing shaft 203 needs to be taken out from the second mounting groove 20212 during installation and removal, in order to facilitate taking and placing, the opening direction of the first mounting groove 20211 and the second mounting groove 20212 in this embodiment is horizontal (perpendicular to the central axis of the pressing shaft 203).

[0107] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, the driving mechanism 40 includes:

[0108] The second rotation axis 401 is coaxial with the first rotation axis 201;

[0109] The driven gear 402 is sleeved and fixed on the second rotating shaft 401;

[0110] A spline sleeve 403 is disposed between the second rotating shaft 401 and the first rotating shaft 201 and is used for connecting and separating the first rotating shaft 201 and the second rotating shaft 401;

[0111] The driving motor 404 is connected to the control system 50. The output shaft of the driving motor 404 is sleeved with a driving gear 405 that meshes with the outside of the driven gear. The driving mechanism 40 uses a stepping motor.

[0112] Specifically, when the thickness of the copper foil to be wound is greater than 0.1 mm, the first rotating shaft 201 is separated from the second rotating shaft 401 by the slidingly connected spline sleeve 403. At this time, the pressing shaft 203 is in contact with the copper foil, and the copper foil supports the pressing shaft 203 through the pulled tension. At the same time, as the thickness of the copper foil roll increases, the pulled copper foil roll to be wound gradually lifts the pressing shaft 203. The separator 2041 on the pressing shaft 203 can also play a role in positioning and winding the copper foil. It should be noted that the above-mentioned counterweight block 2052 needs to be gradually reduced according to the increase in the thickness of the copper foil roll. Thereby, appropriate pressure is applied to the copper foil of different thicknesses, which can significantly reduce the problems of copper foil deformation, scratches and curling compared to the same pressure applied to the copper foil by the pressing shaft 203 of different thicknesses.

[0113] When the thickness of the copper foil to be rolled is between 0.03-0.1 mm, the first rotating shaft 201 is connected to the second rotating shaft 401 through the sliding spline sleeve 403. At this time, the pressing arm 202 is driven to rotate by the driving motor 404, and the pressing shaft 203 is driven to rotate, so that the pressing shaft 203 does not contact the upper surface of the copper foil to be rolled, and does not apply pressure to the copper foil with a smaller thickness. At the same time, the copper foil is positioned and rolled through the separator 2041, so that the outer diameter of the copper foil roll is relatively uniform.

[0114] In this embodiment, the meshing speed ratio between the driving gear 405 and the driven gear 402 of the stepper motor is 1:1, and the output speed ratio of the reduction gearbox of the stepper motor is set to 40:1, and the reduction gearbox is connected to the stepper motor and the stepper motor controller.

[0115] Please refer to Figure 1 and Figure 2 As shown, in this embodiment, the distance measuring mechanism 30 includes a laser distance meter 301 and a bracket 302 for fixing the laser distance meter. The laser distance meter 301 is arranged in the radial direction of the copper foil roll, and the laser distance meter 301 is connected to the control system 50.

[0116] Specifically, considering the accuracy of the laser rangefinder measurement, the laser rangefinder 301 in this embodiment is placed in the horizontal plane where the central axis of the take-up shaft 101 is located. At the same time, the laser rangefinder 301 is perpendicular to the central axis of the take-up shaft 101, that is, the laser beam of the laser rangefinder 301 is perpendicular to the central axis of the take-up shaft 101.

[0117] In addition, the distance between the laser rangefinder 301 and the axial surface of the winding shaft 101 (the side closer to the laser rangefinder) should be greater than the preset radius of the copper foil pre-winding. For example, if the preset radius of the copper foil pre-winding is 300 mm, the distance between the laser rangefinder and the axial surface of the winding shaft 101 can be set to 350-400 mm.

[0118] In order to facilitate visual operation for operators, the copper foil winding device in this embodiment is provided with a display screen 60 , which is connected to the control system 50 .

[0119] Embodiment 2

[0120] The copper foil winding device of this embodiment adopts different winding control methods according to the different thicknesses of the copper foil to be wound, which are as follows:

[0121] Please refer to Fig. 9 As shown, a control method for a copper foil winding device with automatic adjustment of the pressing arm 202 as in the first embodiment, when the thickness of the copper foil to be wound is 0.03-0.1 mm, comprises the following steps:

[0122] S1, set the number and spacing of separators 2041 according to the number and width of the copper foil to be rolled up.

[0123] It should be noted that when the total width of the copper foil to be rolled up is smaller than the effective length of the pressing shaft 203 , the portion of the pressing shaft 203 where the separator 2041 is not installed can be covered with a split sleeve 2042 to fix the separator 2041 .

[0124] S2, rotating the first rotating shaft 201 to adjust the distance between the pressing shaft 203 and the surface of the copper foil to be rolled up to a first distance, and connecting the driving mechanism 40 to the first rotating shaft 201.

[0125] S3, adjust the number of counterweight blocks 2052 so that the ratio of the mass of the counterweight blocks 2052 on one side of the first rotating shaft 201 to the sum of the mass of the pressing shaft 203 and the winding assembly 204 on the other side is 0.9:1.

[0126] Specifically, the purpose of adjusting the ratio of the mass and weight on both sides to 0.9:1 is to reduce the moment on both sides of the press arm 202, thereby reducing the output torque of the stepper motor.

[0127] S4, setting a preset radius for pre-winding the copper foil roll in the control system 50, and setting a response value of the driving mechanism 40 to the radius change; starting the copper foil winder 10, and obtaining the radius change of the copper foil roll through the distance measuring mechanism 30.

[0128] S5, the control system 50 obtains the radius change. When the radius change reaches a preset value, the control system 50 controls the driving mechanism 40 to drive the first rotating shaft 201 to rotate, and drives the pressing shaft 203 to rotate and lift a second distance.

[0129] Specifically, in this embodiment, the radius variation range is 4-5mm, and the second distance of the press shaft 203 is 4-5mm. Therefore, in this embodiment, it is necessary to make the press shaft 203 and the copper foil roll have a distance equal to the radius variation before winding. In this way, each time the driving mechanism 40 (stepping motor) drives the press shaft 203 to lift the same second distance, it can be ensured that when the copper foil roll has the same radius variation, the press shaft 203 and the copper foil to be wound will not contact each other, and it can also be ensured that the separator 2041 with an effective working surface of 15mm is at least partially located on the lower surface of the copper foil, so as to effectively position the copper foil to be wound.

[0130] S6, repeat the above step S5 until the sum of the radius changes measured by the distance measuring mechanism 30 is equal to the preset radius, and the control system 50 turns off the copper foil coiler 10 and other supporting equipment.

[0131] Specifically, when the total radius variation of the distance measuring mechanism 30 (a laser distance meter is used in this embodiment) is equal to the preset radius, the control system 50 can remind the staff through sound and light alarms. The above-mentioned other supporting equipment includes slitting motors, unwinding motor frequency converters, etc.

[0132] In this embodiment, the control system 50 adopts a PLC control system 50. The connection method and control principle between the PLC control system 50 and the stepper motor and laser rangefinder belong to the existing technology and will not be repeated in this application.

[0133] S7, separating the first rotating shaft 201 from the driving mechanism 40, rotating and positioning the reel-splitting mechanism 20 until the effective working surface of the separator 2041 is separated from the copper foil roll, and removing the copper foil roll from the winding shaft 101.

[0134] It should be noted that the above control method is for copper foil with a thickness of 0.03-0.1mm, although the pressing shaft 203 itself does not contact the copper foil to be coiled and does not apply pressure to the copper foil. However, due to the small thickness of the copper foil itself, its own flexibility is good, and the width of the copper foil after slitting is also small. Therefore, in the coiling process, only relying on the pulling force of the coiling shaft 101 itself, the copper foil can be coiled very neatly and tightly, without problems such as looseness, tower-shaped deformation, and collapse. At the same time, there will be no problem that when the wide-width copper foil is coiled, the air is easily drawn into its interior, and as the coil diameter increases, it is easy to string the coils. At the same time, when the copper foil rotates slightly and swings left and right, at this time, the copper foil will contact a separator on one side and drive the separator to rotate, thereby correcting the curling position of the copper foil, thereby ensuring that the edge of the copper foil is not affected by the outside, and improving the quality of the copper foil strip.

[0135] Please refer to Fig.10 As shown, when the thickness of the copper foil to be rolled is greater than 0.1 mm, the control method of the copper foil winding device in which the pressing arm 202 is automatically adjusted comprises the following steps:

[0136] S1', setting the number and spacing of the separators 2041 according to the number and width of the copper foil to be rolled up;

[0137] Specifically, when the total width of the copper foil to be rolled up is smaller than the effective length of the pressing shaft 203 , the portion of the pressing shaft 203 where the separator 2041 is not installed can be covered with a split sleeve 2042 to fix the separator 2041 .

[0138] S2 ′, separating the driving mechanism 40 from the first rotating shaft 201 .

[0139] Specifically, the first rotating shaft 201 is separated from the second rotating shaft 401 of the driving motor 404 by sliding the spline sleeve 403 .

[0140] S3', adjust the number of counterweight blocks 2052 so that the ratio of the mass of the counterweight assembly 205 on one side of the first rotating shaft 201 to the pressing shaft 203 and the winding assembly 204 on the other side gradually decreases from 0.9:1 to 0:1 as the thickness of the copper foil roll to be wound increases.

[0141] S4', setting a preset radius for pre-winding the copper foil roll in the control system 50, starting the copper foil winder 10, and obtaining a radius change of the copper foil roll through the distance measuring mechanism 30;

[0142] S5', the control system 50 obtains the radius change amount until the sum of the radius change amounts measured by the distance measuring mechanism 30 is equal to the preset radius, and the control system 50 turns off the copper foil coiling machine 10 and other supporting equipment;

[0143] S6′, rotating and positioning the roll-splitting mechanism 20 until the effective working surface of the separator 2041 is separated from the copper foil roll, and the copper foil roll is unloaded from the winding shaft 101.

[0144] It should be noted that the above control method is aimed at copper foil with a thickness greater than 0.1 mm. Since the copper foil itself has low flexibility at this thickness, it is necessary to adjust the pressure value applied by the pressing shaft 203 on the copper foil by appropriately increasing or decreasing the number of counterweight blocks 2052 according to the thickness of the copper foil roll itself, so as to ensure that the copper foil roll after winding can be compact and the outer diameter can be relatively neat and uniform.

[0145] The copper foil winding device control method of the present invention adopts two ways of winding, that is, the pressing shaft 203 contacts or does not contact the copper foil according to the different thickness of the copper foil to be wound, so as to realize dual-purpose of one machine and improve the flexibility of using the copper foil winding device.

[0146] The above is a specific implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of this application.

Claims

1. A copper foil winding device with automatic adjustment of the pressing arm, characterized in that: include: A copper foil coiler (10), wherein the copper foil coiler (10) is provided with a coiling shaft (101) for continuously coiling the slit copper foil to be coiled to form one or more copper foil coils; A positioning and reeling mechanism (20) is used to position the copper foil to be reeled and the copper foil roll, the positioning and reeling mechanism (20) is rotatably arranged on the upper part of the copper foil roll, and the rotation center axis of the positioning and reeling mechanism (20) is parallel to the center axis of the reeling shaft (101); A distance measuring mechanism (30) is used to measure the radius change of the copper foil roll; A driving mechanism (40), wherein the driving mechanism (40) is detachably connected to the positioning and rolling mechanism (20); A control system (50) is used to control the driving mechanism (40) to intermittently drive the positioning and rolling mechanism (20) to rotate according to the radius change of the copper foil roll measured by the distance measuring mechanism (30); When the thickness of the copper foil to be rolled is 0.03-0.1 mm, the driving mechanism (40) is connected to the positioning and rolling mechanism (20), and controls the positioning and rolling mechanism (20) to have a first distance with the copper foil to be rolled, and when the radius variation reaches a set value, the driving mechanism (40) drives the positioning and rolling mechanism (20) to rotate, so that the positioning and rolling mechanism (20) is rotated and raised by a second distance relative to the surface of the copper foil to be rolled, and the first distance is greater than the second distance; When the thickness of the copper foil to be rolled is greater than 0.1 mm, the driving mechanism (40) is separated from the positioning and rolling mechanism (20), the positioning and rolling mechanism (20) is in contact with the copper foil to be rolled, and the pressure applied by the positioning and rolling mechanism (20) to the copper foil to be rolled is adjusted according to the thickness of the copper foil to be rolled.

2. The copper foil winding device with automatic adjustment of the pressing arm according to claim 1 is characterized in that: The positioning and rolling mechanism (20) comprises: A first rotating shaft (201) is detachably connected to the driving mechanism (40), and a central axis of the first rotating shaft (201) is parallel to a central axis of the winding shaft (101); A material pressing arm (202) is symmetrically fixedly arranged on the first rotating shaft (201), and the material pressing arm (202) and the first rotating shaft (201) form a first frame body (2021) and a second frame body (2022) that are connected to each other; A pressing shaft (203) is arranged between the first frame (2021) and away from the first rotating shaft (201), and the central axis of the pressing shaft (203) is parallel to the central axis of the first rotating shaft (201) and / or the winding shaft (101); The reel splitting components (204) are arranged at intervals along the central axis direction of the pressing shaft (203) and are used for reeling and positioning the copper foil to be rolled and the copper foil roll; The counterweight assembly (205) is arranged on the second frame (2022) and is located on both sides of the first rotating shaft (201) together with the pressing shaft (203).

3. The copper foil winding device with automatic adjustment of the pressing arm according to claim 2 is characterized in that: The volume separation component (204) comprises: The separators (2041) are arranged at intervals along the central axis direction of the pressing shaft (203), the distance between adjacent separators (2041) is slightly larger than the width of the copper foil to be wound up, the lower part of the separator (2041) is lower than the surface of the copper foil to be wound up and / or the copper foil roll to form an effective working surface, and the radial width of the effective working surface along the separator (2041) is not less than the second distance; A splitting sleeve (2042) is rotatably mounted on the outside of the pressing shaft (203), and the splitting sleeve (2042) is located between adjacent separators (2041) and / or between the separators (2041) and the two ends of the pressing shaft (203), and is used to position and fix the separators (2041) according to the width of the copper foil to be rolled.

4. The copper foil winding device with automatic adjustment of the pressing arm according to claim 3 is characterized in that: The counterweight assembly (205) comprises: A counterweight bin (2051) having a plurality of counterweight slots (20511), wherein the counterweight bin (2051) is arranged between the second frame (2022); The counterweight block (2052) is movably inserted into the counterweight slot (20511), and the weight ratio on both sides of the first rotating shaft (201) is adjusted by increasing or decreasing the number of the counterweight blocks (2052).

5. The copper foil winding device with automatic adjustment of the pressing arm according to claim 4 is characterized in that: The radius variation range is 4-5 mm, and the first distance and the second distance range are 4-5 mm.

6. The copper foil winding device with automatic adjustment of the pressing arm according to claim 4 is characterized in that: The rotating end of the pressing shaft (203) is rotatably connected to the proximal end of the first frame (2021) close to the copper foil coiler (10), and the free end of the pressing shaft (203) is detachably connected to the distal end of the first frame (2021) away from the copper foil coiler (10); When disassembling or installing the splitting assembly, the free end of the pressing shaft (203) rotates away from or toward the distal end of the first frame (2021) with the rotating end of the pressing shaft (203) as the rotation center; A first mounting groove (20211) having an opening is provided at the distal end of the first frame (2021), and the free end of the pressing shaft (203) is rotatably disposed in the first mounting groove (20211); A second installation groove (20212) having an opening in the same direction as the opening of the first frame (2021) is provided at the proximal end of the first frame (2021), and the rotating end of the pressing shaft (203) is detachably arranged in the second installation groove (20212); The first mounting groove (20211) and the second mounting groove (20212) are both provided with detachable fixing parts (2023) for fixing the two ends of the pressing shaft (203).

7. The copper foil winding device with automatic adjustment of the pressing arm according to any one of claims 4 to 6, characterized in that: The driving mechanism (40) comprises: A second rotation axis (401) coaxial with the first rotation axis (201); A driven gear (402) sleeved and fixed on the second rotating shaft (401); A spline sleeve (403) is arranged between the second rotating shaft (401) and the first rotating shaft (201) and is used for connecting and separating the first rotating shaft (201) and the second rotating shaft (401); The driving motor (404) is connected to the control system (50), and the output shaft sleeve of the driving motor (404) is fixed with a driving gear (405) that meshes with the outside of the driven gear.

8. The copper foil winding device with automatic adjustment of the pressing arm according to any one of claims 4 to 6, characterized in that: The distance measuring mechanism (30) comprises a laser distance meter (301) and a bracket (302) for fixing the laser distance meter, the laser distance meter (301) is arranged in the radial direction of the copper foil roll, and the laser distance meter (301) is connected to the control system (50).

9. A control method for a copper foil winding device with automatic adjustment of a pressing arm according to any one of claims 4 to 8, characterized in that: The steps include: S1, setting the number and spacing of separators (2041) according to the number and width of the copper foil to be rolled; S2, when the thickness of the copper foil to be rolled is 0.03-0.1 mm, rotating the first rotating shaft (201) to adjust the distance between the pressing shaft (203) and the surface of the copper foil to be rolled to a first distance, and connecting the driving mechanism (40) to the first rotating shaft (201); S3, adjusting the number of the counterweight blocks (2052) so that the ratio of the mass of the counterweight blocks (2052) on one side of the first rotating shaft (201) to the mass of the pressing shaft (203) and the winding assembly (204) on the other side is 0.9:1; S4, setting a preset radius for pre-winding the copper foil roll in the control system (50), and setting a response value of the driving mechanism (40) to the radius change; starting the copper foil winder (10), and obtaining the radius change of the copper foil roll through the distance measuring mechanism (30); S5, the control system (50) obtains the radius change amount, and when the radius change amount reaches a preset value, the control system (50) controls the driving mechanism (40) to drive the first rotating shaft (201) to rotate, and drives the pressing shaft (203) to rotate and lift a second distance, wherein the second distance is smaller than the first distance; S6, repeating S5 until the sum of the radius changes measured by the distance measuring mechanism (30) is equal to the preset radius, and the control system (50) shuts down the copper foil coiling machine (10) and other supporting equipment; S7, separating the first rotating shaft (201) from the driving mechanism (40), rotating the positioning and reeling mechanism (20) until the effective working surface of the separator (2041) is separated from the copper foil roll, and removing the copper foil roll from the winding shaft (101).

10. A control method for a copper foil winding device with automatic adjustment of a pressing arm according to any one of claims 4 to 8, characterized in that: The steps include: S1', setting the number and spacing of separators (2041) according to the number and width of the copper foil to be rolled up; S2', when the thickness of the copper foil to be rolled up is greater than 0.1 mm, separating the driving mechanism (40) from the first rotating shaft (201); S3', adjusting the number of counterweight blocks (2052) so that the ratio of the sum of the masses of the counterweight assembly (205) on one side of the first rotating shaft (201) and the material pressing shaft (203) and the winding assembly (204) on the other side gradually decreases from 0.9:1 to 0:1 as the thickness of the copper foil roll to be wound increases; S4', setting a preset radius for pre-coiling the copper foil roll in the control system (50), starting the copper foil coiler (10), and obtaining a radius change of the copper foil roll through the distance measuring mechanism (30); S5', the control system (50) obtains the radius change amount until the sum of the radius change amounts measured by the distance measuring mechanism (30) is equal to the preset radius, and the control system (50) turns off the copper foil coiling machine (10) and other supporting equipment; S6', rotating the positioning and reeling mechanism (20) until the effective working surface of the separator (2041) is separated from the copper foil roll, and removing the copper foil roll from the reeling shaft (101).

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