Automatic roll changing, cutting and film splicing device and method thereof

Abstract

The application belongs to the technical field of membrane electrode production equipment, and particularly relates to an automatic roll changing, cutting and film connecting device and a method thereof. The device comprises at least two winding core pipes, which rotate around their core shafts and are used for winding the film material; a plurality of transition rollers, which are arranged between the two winding core pipes and are used for transmitting the film material; a film cutting mechanism, which is arranged between the two winding core pipes and moves between the two winding core pipes. The film cutting mechanism comprises a roller and a cutting knife. The roller is used for transferring the winding film material from one winding core pipe to another winding core pipe, and the winding film material is cut by the cutting knife to make one winding core pipe complete the winding of the film material while the other winding core pipe starts to wind the film material, so as to realize the automatic roll changing of the film material. A rubber sticking mechanism is arranged between the two winding core pipes and is used for sticking rubber to the empty winding core pipe and / or for sticking rubber to the winding film material on the winding core pipe.

Description

Technical Field

[0001] This invention belongs to the technical field of membrane electrode production equipment, specifically relating to an automatic roll changing, cutting, and splicing device and method. Background Technology

[0002] The production process of lithium batteries involves welding tabs, which requires ultrasonic welding of substrate tabs to form outer tabs. After welding, the electrode film needs to be rewound onto the core tube for subsequent lithium battery packaging.

[0003] Electrode film winding utilizes two fixed winding cores for continuous, alternating winding. After one winding is complete, the electrode needs to be transferred to another winding core for further winding. Currently, the manual winding method requires manually stopping the machine to cut and guide the film, and then splicing it with tape. This is cumbersome, labor-intensive, and has low efficiency. Therefore, it is necessary to improve upon the shortcomings of existing technology to overcome its deficiencies in practical applications. Summary of the Invention

[0004] Based on the aforementioned shortcomings and deficiencies in the prior art, one of the objectives of this invention is to at least solve one or more of the aforementioned problems in the prior art. In other words, one of the objectives of this invention is to provide an automatic roll-changing, cutting, and splicing device and method that meets one or more of the aforementioned requirements.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] This invention provides an automatic roll-changing, cutting, and splicing device, comprising:

[0007] At least two take-up core tubes, each rotating about its own core axis, are used to take up the film material;

[0008] Several transition rollers are located between two take-up core tubes and are used to transfer the film material;

[0009] A film cutting mechanism is disposed between two take-up core tubes and moves between them. The cutting mechanism includes a roller and a cutter. The roller transfers the film material being wound from one take-up core tube to the other, and the cutter cuts the film material being wound, so that one take-up core tube completes winding the film material while the other take-up core tube begins winding the film material, thereby achieving automatic film material changing.

[0010] An adhesive applicator is located between two take-up core tubes and is used to apply adhesive to empty take-up core tubes and / or to apply adhesive to the film material that has been wound up on the take-up core tubes.

[0011] As a preferred embodiment, the film cutting mechanism further includes a film cutting motion unit and a drive unit. The drive unit is disposed on the film cutting motion unit and is connected to the roller in a transmission manner. The film cutting motion unit is configured to drive the roller to move between two take-up core tubes, and the drive unit is configured to drive the roller to abut against the take-up core tube or drive the roller to rotate.

[0012] As a preferred embodiment, the film cutting motion unit includes a first module, a second module, a movable seat, and a rotating arm. The first module and the second module are slidably engaged, the movable seat is slidably engaged with the second module, the rotating arm is rotatably connected to the movable seat, and the roller is connected to the rotating arm through a fixed seat.

[0013] As a preferred embodiment, the drive unit includes a first motor and a second motor. The first motor is located on the movable seat and rotatably connected to the rotating arm, and is used to drive the roller to swing. The second motor is located on the fixed seat and is drivenly connected to the roller, and is used to drive the roller to rotate.

[0014] As a preferred embodiment, the cutter is installed inside the roller and telescopically engages with the roller so that the cutter protrudes from the roller. The roller is used to convey the film material, and the cutter is used to cut the film material.

[0015] As a preferred embodiment, the adhesive applicator is located below the film cutting mechanism. The adhesive applicator includes an adhesive applicator motion unit, a base, and an adhesive applicator roller. The adhesive applicator motion unit is connected to the base for transmission. The adhesive applicator roller is disposed on the base. Double-sided adhesive is installed on the base. The adhesive applicator motion unit drives the adhesive applicator roller to move and applies the double-sided adhesive to the empty take-up core tube or the wound film material.

[0016] As a preferred embodiment, the adhesive application motion unit includes a third module, a fourth module, a rotating disk, and a wedge block. The rotating disk is slidably engaged with the third module, the wedge block is disposed on the rotating disk, the fourth module is disposed on the wedge block, and the base is slidably engaged with the fourth module.

[0017] As a preferred embodiment, the base is provided with a third motor, an unwinding roller, and a winding roller. The unwinding roller and the winding roller are respectively connected to the third motor for transmission. The unwinding roller is used to convey double-sided adhesive, and the winding roller is used to wind up the release paper of the double-sided adhesive.

[0018] The present invention also provides an automatic roll-changing, cutting, and splicing method, using the apparatus described in any of the above embodiments, comprising the following steps:

[0019] S10. Double-sided tape is applied to the take-up core tube by the adhesive applicator, and the film material is attached to the double-sided tape on one of the take-up core tubes for winding the film material.

[0020] S20. The film material being wound is transferred from one winding core tube to another by the rollers of the film cutting mechanism, and the film material being wound is cut by the cutter, so that one winding core tube completes the winding of the film material, while the other winding core tube begins to wind the film material, so as to realize the automatic roll changing of the film material.

[0021] As a preferred embodiment, a moving adhesive applicator or a film cutting mechanism moves between two take-up core tubes to apply adhesive or cut film to different take-up core tubes.

[0022] Compared with the prior art, the beneficial effects of this invention are:

[0023] The present invention provides an automatic roll-changing, cutting, and splicing device that automatically switches the electrode film material between two fixed take-up core tubes and automatically cuts the electrode film material. The cut film material joint is bonded to the surface of the rotating core tube by double-sided adhesive and then rolled up. The adhesive application mechanism can apply double-sided adhesive to the surface of the take-up core tube before roll changing and apply double-sided adhesive to the finished roll material after roll changing to complete the end film application. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an automatic roll changing, cutting and splicing device according to an embodiment of the present invention.

[0025] Figure 2 This is a schematic diagram of the film cutting mechanism according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the film cutting mechanism in an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the film cutting mechanism from another perspective according to an embodiment of the present invention;

[0028] Figure 5 This is a schematic diagram of the adhesive application mechanism according to an embodiment of the present invention;

[0029] Figure 6 This is a side view of the adhesive application mechanism according to an embodiment of the present invention;

[0030] Figure 7 This is a rear view of the base of the adhesive applicator according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the double-sided adhesive portion of an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the wound film material state according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the membrane material changing state according to an embodiment of the present invention;

[0034] In the diagram: 0. Film material, 1. Take-up core tube, 2. Transition roller, 3. Film cutting mechanism, 31. Film cutting motion unit, 311. First module, 312. Second module, 313. Moving seat, 314. Rotating arm, 315. Fixed seat, 32. Drive unit, 321. First motor, 322. Second motor, 323. Coupling, 324. Rotating shaft, 33. Roller, 331. Cylinder, 332. Drive arm, 333. Swing arm, 334. Connecting rod, 34. Cutting knife, 3 5 First detection switch, 36 Second detection switch, 4 Adhesive application mechanism, 41 Adhesive application motion unit, 411 Third module, 412 Fourth module, 413 Rotating disk, 414 Wedge block, 42 ​​Base, 421 Unwinding roller, 422 First winding wheel, 423 Second winding wheel, 43 Adhesive application roller, 44 Third motor, 45 Drive roller, 46 Driven roller, 5 Double-sided adhesive, 51 Double-sided adhesive strip, 52 Upper release paper, 53 Lower release paper. Detailed Implementation

[0035] To more clearly illustrate the embodiments of the present invention, specific implementation methods will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0036] In the description of the following embodiments, the technical terms "first," "second," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0037] In the description of the following embodiments, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the following embodiments based on the specific circumstances.

[0038] like Figure 1As shown, according to some embodiments of this application, an automatic roll-changing, cutting, and splicing device is provided, including at least two take-up core tubes 1, several transition rollers 2, a film cutting mechanism 3, and an adhesive application mechanism 4. The lithium battery electrode film 0, processed in the previous step, needs to be guided by the transition rollers 2 and wound around the take-up core tube 1 for subsequent lithium battery encapsulation. When the film 0 on the take-up core tube 1 is fully wound, it needs to be cut by the film cutting mechanism 3 and transferred to another take-up core tube for further winding. The wound film needs to be adhesively applied by the adhesive application mechanism 4 to form a film roll. The entire operation can be performed without stopping the machine, achieving automated roll changing and improving winding efficiency.

[0039] Specifically, in this embodiment, there are two take-up core tubes 1 arranged side by side and rotating around their core shafts to gradually roll up the film material into shape; the transition roller 2 is located between the two take-up core tubes 1 and is used to guide and transport the film material to make the surface of the film material neat and to avoid wrinkles or other phenomena during winding.

[0040] Furthermore, the film cutting mechanism 3 is disposed between the two winding core tubes 1 and moves between the two winding core tubes 1 to contact and cooperate with the winding core tubes 1. The film cutting mechanism 3 is used to transfer the film material being wound from one winding core tube to the other winding core tube and cut the film material being wound, so that one winding core tube completes the winding of the film material, while the other winding core tube begins to wind the film material, so as to realize the automatic roll changing of the film material.

[0041] In some embodiments, such as Figures 2 to 4 As shown, the film cutting mechanism 3 includes a film cutting motion unit 31, a drive unit 32, a roller 33, and a cutter 34. The film cutting motion unit 31 is configured to drive the roller 33 to move between two take-up core tubes 1. The drive unit 32 is configured to drive the roller 33 to abut against the take-up core tube 1 or to drive the roller 33 to rotate, so that the cutter 34 cuts the film material.

[0042] Specifically, the film cutting motion unit 31 includes a first module 311, a second module 312, a movable seat 313, a rotating arm 314, and a fixed seat 315. The first module 311 and the second module 312 are slidably engaged, the movable seat 313 and the second module 312 are slidably engaged, the rotating arm 314 is rotatably connected to the movable seat 313, and the roller 33 is connected to the rotating arm 314 through the fixed seat 315.

[0043] Furthermore, the first module 311 and the second module 312 are arranged vertically. The first module 311 is equipped with a slide rail, and the second module 312 is equipped with a slider, which slides in conjunction with the slide rail. The first module 311 and the second module 312 have the same structure and are readily available products on the market. Both include a module motor, a slide rail, and a lead screw. The moving base 313 is slidably connected to the slide rail of the second module 312, and the moving base 313 is drivenly connected to the lead screw of the second module 312.

[0044] Through the structural design of the first module 311, the second module 312 and the movable seat 313, it is possible to ensure that the roller 33 can move at any position in the horizontal plane, so that the position of the roller 33 can be switched between the two winding core tubes 1, and the film material being wound can be transferred on the two winding core tubes 1.

[0045] Furthermore, the drive unit 32 is mounted on the film cutting motion unit 31. The drive unit 32 includes a first motor 321 and a second motor 322. The output end of the second motor 322 is sequentially connected to a coupling 323, a rotating shaft 324, and a roller 33. The coupling 323 is installed in the fixed base 315. The rotating shaft 324 passes through the roller 44 and is connected to the roller 33 for transmission. The rotation of the second motor 322 causes the rotating shaft 324 to rotate, thereby driving the roller 33 to rotate simultaneously. The fixed base 315 is used to install and limit the overall structure of the second motor 322, coupling 323, rotating shaft 324, and roller 33. Since the rotating arm 314 needs to bear the overall weight, the rotating arm 314 needs to have stronger structural rigidity, and a metal material can be selected.

[0046] The first motor 321 is mounted on the movable seat 313 and is rotatably connected to the rotating arm 314. The rotation of the first motor 321 drives the rotating arm 314 to rotate, thereby causing the roller 33 to swing around the rotating arm 314 so that the roller 33 contacts and engages with the take-up core tube 1.

[0047] The roller 33 is equipped with a drive arm 332, a swing arm 333, a connecting rod 334 and a cutter 34. A cylinder 331 is installed on the side wall of the roller 33. The output end of the cylinder 331 is rotatably connected to the drive arm 332. The two ends of the drive arm 332 are rotatably connected to the rotating shaft 324 and the connecting rod 334, respectively. The swing arm 333 is rotatably connected to the rotating shaft 324. The two ends of the swing arm 333 are connected to the connecting rod 334 and the cutter 34, respectively. The connecting rod 334 and the cutter 34 are located on both sides of the rotating shaft 324.

[0048] A cutting edge is provided on the surface of the roller 33 along the axial direction. The cylinder 331 drives the drive arm 332 to move. The drive arm 332 is linked to the connecting rod 334 to swing. The connecting rod 334 is linked to the cutting blade 34 to swing in the opposite direction in sync through the swing arm 333, thereby realizing the extension and retraction cooperation between the cutting blade 34 and the cutting edge. When the cutting blade 34 protrudes outside the cutting edge of the roller 33, the cutting blade 34 is used to cut the film material. When the cutting blade 34 retracts and is hidden inside the cutting edge of the roller 33, it is used to transfer the film material through the roller 33.

[0049] The cutting surface of the cutter 34 has serrations, which are used to cut the film material. When the cutter 34 is retracted into the roller 33, the serrations are hidden inside the cutter opening of the roller 33 to prevent the cutter 34 exposed outside the roller 33 from accidentally cutting the film material during the transfer of the film material. This does not affect the transfer of the film material by the roller and can also play a certain protective role for the film material.

[0050] When the first motor 321 drives the rotating arm 314 to rotate, it can adjust the rotation angle of the roller 33 so that the roller 33 can swing within a certain angle range so that the cutter 34 can be aligned with the film material to cut it.

[0051] Furthermore, the swing arm 333 has an arched structure, with connecting rod 334 and cutter 34 connected to its two ends respectively. The connecting rod 334 and cutter 34 are arranged parallel to each other and are respectively located on both sides of the rotating shaft 324. When the drive arm 332 moves in conjunction with the connecting rod 334, the connecting rod 334 drives the swing arm 333 to rotate relative to the rotating shaft 324. At the same time, the swing arm 333 will swing in conjunction with the cutter 34. On the one hand, this allows the connecting rod 334 and cutter 34 to move relative to each other along a certain arc direction, maintaining the balance of the cutter 34. On the other hand, it allows the cutter 34 to extend or retract along the cutting edge of the roller 33.

[0052] Furthermore, a first detection switch 35 is installed on the fixed base 315. The first detection switch 35 is positioned directly opposite the rotating shaft 324. The first detection switch 35 is used to detect the rotation angle of the rotating shaft 324 and can control the rotation angle of the roller 33 and the cutter 34 to adjust the position of the cutter 34 when cutting the film material. The first detection switch can be a slotted photoelectric switch.

[0053] A second detection switch 36 is installed on the movable base 313, facing the rotating arm 314 and arranged vertically on the movable base 313. The second detection switch 36 is used to detect the rotation angle of the rotating arm 314 and can adjust the angle of the roller 33 swinging around the output end of the second motor 322 so that when the roller 33 abuts against the take-up core tube 1, it can be adapted to film materials of different thicknesses. The second detection switch can be a slotted photoelectric switch.

[0054] Because the membrane material is conveyed from top to bottom, it is fed by the transition roller 2 and then wound onto the take-up core tube 1. Before winding the membrane material, adhesive needs to be applied to the empty take-up core tube 1 to facilitate the adhesion and fixation of the membrane material. When the wound membrane material reaches the required thickness or one take-up core tube 1 is fully wound, the membrane material needs to be cut by the cutter 34. At this time, the tail film of the membrane material on the take-up core tube 1 needs to be glued with double-sided adhesive to complete the winding and forming of the membrane material, so as to avoid the phenomenon of loose membrane material inside the roll or uneven membrane material sides.

[0055] In some embodiments, such as Figures 5 to 7 As shown, the adhesive application mechanism 4 is disposed between the two take-up core tubes 1, and is used to apply adhesive to the empty take-up core tube 1 and / or to apply adhesive to the film material that has been wound up on the take-up core tube 1.

[0056] Specifically, the adhesive applicator 4 is located below the film cutting mechanism 3. The adhesive applicator 4 includes an adhesive applicator motion unit 41, a base 42, and an adhesive applicator roller 43. The adhesive applicator motion unit 41 is connected to the base 42 in a transmission manner. The adhesive applicator roller 43 is located on the base 42. Double-sided adhesive is installed on the base 42. The adhesive applicator motion unit 41 drives the adhesive applicator roller 43 to move, and the adhesive applicator roller 43 applies the double-sided adhesive to the empty take-up core tube 1 or the film material that has been wound up.

[0057] Furthermore, the adhesive application motion unit 41 includes a third module 411, a fourth module 412, a rotating disk 413, and a wedge block 414. The rotating disk 413 is slidably engaged with the third module 411, the wedge block 414 is disposed on the rotating disk 413, the fourth module 412 is disposed on the wedge block 414, and the base 42 is slidably engaged with the fourth module 412.

[0058] A slider is provided between the rotating disk 413 and the third module 411. The slider is slidably connected to the third module 411 and rotatably connected to the rotating disk 413. The slider slides along the third module 411, causing the base 42 to move horizontally. Then, the rotating disk 413 rotates relative to the slider, causing the rotating disk 413 to rotate around its circumference, thus rotating the base 42 together. This is used to adjust different adhesive application positions, thereby rotating the adhesive roller 43 to different adhesive application positions. In this embodiment, the rotation of the rotating disk 413 can be driven by a servo motor to ensure operational stability and accuracy.

[0059] During the adhesive application process, the slider moves slightly along the third module 411, causing the base 42 and the adhesive roller 43 to roll along the width of the wound film, so that the double-sided adhesive, which passes between the adhesive roller 43 and the film, is adhered to the surface of the film. Since the double-sided adhesive strips are arranged at intervals, the double-sided adhesive is also spaced apart across the width of the film.

[0060] It should be noted that, as Figure 8 As shown, the double-sided adhesive in this embodiment has a three-layer structure: the upper and lower layers are release paper, and the middle layer is a double-sided adhesive strip, which is arranged sequentially at intervals. During use, the upper and lower release papers need to be peeled off from the double-sided adhesive strip, and the double-sided adhesive strip is then adhered to the surface of the film material to complete the film winding.

[0061] Furthermore, the wedge block 414 has a right-angled triangular cross-section, and its mounting surface forms a certain angle with the horizontal plane. Mounting the fourth module 412 on the wedge block 414 allows the base 42 to maintain a certain tilt angle. After the winding core tube 1 finishes winding the film, the fourth module 412 drives the base 42 to move, and the adhesive roller 43 abuts against the film surface. The set tilt angle ensures that the roller surface of the adhesive roller 43 remains tangent to the film surface, allowing the double-sided adhesive to adhere fully to the film, avoiding uneven adhesion or air bubbles between the double-sided adhesive and the film.

[0062] In some embodiments, the wedge block 414 can also be replaced by an elastic member to adjust the tilt angle of the fourth module 412, thereby adjusting the position of the adhesive roller 43 when it rolls the take-up core tube 1, so as to adjust the adhesive application position of the film material.

[0063] The base 42 is provided with an unwinding roller 421, a first winding reel 422, a second winding reel 423 and a third motor 44. The unwinding roller 421, the first winding reel 422 and the second winding reel 423 are respectively connected to the third motor 44 for transmission. The unwinding roller 421 is used to convey double-sided adhesive, the first winding reel 422 is used to wind up the upper release paper of the double-sided adhesive, and the second winding reel 423 is used to wind up the lower release paper of the double-sided adhesive.

[0064] A drive roller 45 and a driven roller 46 are also installed on the base 42. A third motor 44 is driven by the drive roller 45, and double-sided adhesive passes between the drive roller 45 and the driven roller 46. The drive roller 45 and the driven roller 46 pass through the base 42 and are rotatably connected to the base 42. The portion of the drive roller 45 and the driven roller 46 above the base 42 is used to convey the double-sided adhesive, and the portion below the base 42 is used to connect to the third motor 44. The third motor 44 is connected to the drive roller 45 and the driven roller 46 through a conveyor belt. The third motor 44 drives the drive roller 46 to rotate, thereby providing a power source for the double-sided adhesive.

[0065] According to some embodiments of this application, the electrode film material is automatically switched between two fixed take-up core tubes, and the electrode film material can be automatically cut. The cut film material joint is bonded with double-sided adhesive through the rotating take-up core tube and then wound up. The adhesive application mechanism can apply double-sided adhesive to the surface of the take-up core tube before changing the roll for later use, and apply double-sided adhesive to the finished roll material after changing the roll to complete the application of the end film.

[0066] Accordingly, this embodiment also provides an automatic roll-changing, cutting, and splicing method, such as... Figures 9 to 10 As shown, the application of the apparatus described above includes the following steps:

[0067] S10. Double-sided tape is applied to the take-up core tube by the adhesive applicator, and the film material is then attached to the double-sided tape on one of the take-up core tubes for winding the film material.

[0068] Specifically, S10 includes the following steps:

[0069] S101. The adhesive applicator is located between two take-up core tubes. The double-sided adhesive is installed in the unwinding roller. First, the upper release paper of the double-sided adhesive is manually wound onto the first reel. The double-sided adhesive strip and the lower release paper pass around the adhesive applicator roller and through the drive roller and driven roller to be wound onto the second reel, thus completing the preparation process for the installation of the double-sided adhesive.

[0070] S102. By adjusting the movement of the third module, the film application mechanism is brought close to one of the empty take-up rollers. The rotating disk is rotated so that the application roller is aligned with the take-up core tube. At this time, a certain distance is maintained between the application roller and the take-up core tube. The fourth module needs to be adjusted so that the application roller abuts against the take-up roller to complete the preparation process for the application position.

[0071] S103. Start the third motor to rotate. The third motor drives the drive roller, the first winding roller, and the second winding roller to rotate. The rotation of the first winding roller is used to wind up the upper release paper. The rotation of the drive roller causes the double-sided adhesive strip and the lower release paper to move around the adhesive application roller and drives the movement of the lower release paper. The rotation of the second winding roller is used to wind up the lower release paper. By adjusting the movement of the third module, the adhesive application roller is moved along the width direction of the winding core tube to complete the application of adhesive to the empty winding core tube.

[0072] S104. After the membrane material is guided by the transition roller, the end of the membrane material is pasted onto the double-sided adhesive of the take-up core tube. The membrane material is wound up by rotating the take-up core tube until the required membrane material thickness is reached or the take-up core tube is fully wound with membrane material.

[0073] S20. The film material being wound is transferred from one winding core tube to another by the rollers of the film cutting mechanism, and the film material being wound is cut by the cutter, so that one winding core tube completes the winding of the film material, while the other winding core tube begins to wind the film material, so as to realize the automatic roll changing of the film material.

[0074] Once one of the take-up core tubes is full, the film material needs to be transferred and the roll changed using the film cutting mechanism. Before changing the roll, double-sided tape needs to be applied to the other empty take-up core tube using the adhesive application mechanism. The specific adhesive application method can be found in step S10 and will not be described in detail here.

[0075] Specifically, S20 includes the following steps:

[0076] S201. The film cutting mechanism is located between two take-up core tubes and above the adhesive application mechanism. By adjusting the movement of the first module and the second module, the film material being wound is transferred from one take-up core tube to another through the roller. By adjusting the rotation of the first motor, the roller applies the film material to the double-sided adhesive of the empty take-up core tube.

[0077] S202. By adjusting the cylinder, the cutter extends and retracts along the roller, cutting the film material. Since the film material is wound from top to bottom onto the take-up core tube, the cutter needs to cut the film material between the two take-up core tubes when cutting the film material. The cut end of the film material continues to be wound onto the first take-up core tube. The film material is then attached to the second empty take-up core tube with double-sided tape, at which point the empty take-up core tube begins to wind the film material.

[0078] S203. The first fully wound core tube of the membrane material is coated with adhesive by the adhesive applicator to form a membrane roll. The specific adhesive applicator method can be referred to step S10, and will not be repeated here.

[0079] To achieve automatic roll changing and non-stop adhesive application, the above steps are repeated sequentially. Different take-up core tubes can be used to take up film materials and achieve automatic roll changing and film splicing without the need for manual roll changing and adhesive application, which helps to save labor costs and realize automated production.

[0080] The above description is merely a detailed explanation of preferred embodiments and principles of the present invention. For those skilled in the art, there may be changes in specific implementation methods based on the ideas provided by the present invention, and these changes should also be considered within the scope of protection of the present invention.

Claims

1. An automatic roll-changing, cutting, and splicing device, characterized in that, include: At least two take-up core tubes, each rotating about its own core axis, are used to take up the film material; Several transition rollers are located between two take-up core tubes and are used to transfer the film material; A film cutting mechanism is disposed between two take-up core tubes and moves between the two take-up core tubes. The film cutting mechanism includes a roller and a cutter. The roller is used to transfer the film material being wound from one take-up core tube to the other take-up core tube, and the cutter cuts the film material being wound, so that one take-up core tube completes the winding of the film material, while the other take-up core tube begins to wind the film material, so as to realize automatic film material changing. as well as The adhesive application mechanism is located between two take-up core tubes and is used to apply adhesive to the empty take-up core tube and to apply adhesive to the film material that has been wound up on the take-up core tube. The film cutting mechanism further includes a film cutting motion unit and a drive unit. The drive unit is disposed on the film cutting motion unit and is connected to the roller in a transmission manner. The film cutting motion unit is configured to drive the roller to move between two take-up core tubes. The film cutting motion unit includes a first module, a second module, a movable seat, and a rotating arm. The first module and the second module are arranged perpendicularly. The movable seat is slidably engaged with the second module. The rotating arm is rotatably connected to the movable seat. The roller is connected to the rotating arm through a fixed seat. Through the structural design of the first module, the second module, and the movable seat, the roller can move at any position in the horizontal plane, so that the position of the roller can be switched between two winding core tubes, thereby realizing the transfer of the film material being wound on the two winding core tubes. The drive unit includes a first motor and a second motor. The first motor is mounted on the movable base and rotatably connected to the rotating arm, and is used to drive the roller to swing. The second motor is mounted on the fixed base and is driven to the roller, and is used to drive the roller to rotate. The cutter is installed inside the roller and telescopically engages with the roller so that the cutter protrudes from the roller. The roller is used to convey the film material, and the cutter is used to cut the film material. The adhesive applicator is located below the film cutting mechanism. The adhesive applicator includes an adhesive applicator motion unit, a base, and an adhesive applicator roller. The adhesive applicator motion unit is connected to the base for transmission. The adhesive applicator roller is mounted on the base. Double-sided adhesive is installed on the base. The adhesive applicator motion unit drives the adhesive applicator roller to move and applies the double-sided adhesive to the empty take-up core tube or the wound film material.

2. The automatic roll changing, cutting, and splicing device according to claim 1, characterized in that, The adhesive application unit includes a third module, a fourth module, a rotating disk, and a wedge block. The rotating disk is slidably engaged with the third module, the wedge block is disposed on the rotating disk, the fourth module is disposed on the wedge block, and the base is slidably engaged with the fourth module.

3. The automatic roll changing, cutting, and splicing device according to claim 1, characterized in that, The base is equipped with a third motor, an unwinding roller, and a winding roller. The unwinding roller and the winding roller are respectively connected to the third motor for transmission. The unwinding roller is used to convey double-sided adhesive, and the winding roller is used to wind up the release paper of the double-sided adhesive.

4. An automatic roll-changing, cutting, and splicing method, characterized in that, Using the apparatus as described in any one of claims 1 to 3, the method includes the following steps: S10. Double-sided tape is applied to the take-up core tube by the adhesive applicator, and the film material is attached to the double-sided tape on one of the take-up core tubes for winding the film material. S20. The film material being wound is transferred from one winding core tube to another by the rollers of the film cutting mechanism, and the film material being wound is cut by the cutter, so that one winding core tube completes the winding of the film material, while the other winding core tube begins to wind the film material, so as to realize the automatic roll changing of the film material.

5. The automatic roll-changing, cutting, and splicing method according to claim 4, characterized in that, The adhesive application mechanism or film cutting mechanism moves between two take-up core tubes to apply adhesive or cut film to different take-up core tubes.

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