Automatic winding device for self-adhesive tape

Abstract

The application discloses a kind of automatic winding equipment of self-adhesive tape, comprising: feeding device;Buffer device, including first buffer roller and second buffer roller, second buffer roller can be raised relative to first buffer roller;Feeding device is used to transport self-adhesive tape to first buffer roller, and self-adhesive tape is sequentially wound in first buffer roller and second buffer roller;Film laminating device, including first extrusion roller, second extrusion roller and supply roller, and self-adhesive tape is transported to between first extrusion roller and second extrusion roller after buffer device;Winding device, including rotary table and winding rod installed on rotary table, winding rod has winding position and roll replacement position, winding rod in winding position carries out self-adhesive tape winding, and two winding rods are alternately wound.According to the automatic winding equipment of self-adhesive tape of the embodiment of the application, the automation operation of self-adhesive tape from feeding to winding can be realized, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of adhesive tape production equipment technology, and in particular to an automatic self-adhesive tape winding device. Background Technology

[0002] Self-adhesive tapes applicable to the cable industry include semiconductor self-adhesive tapes and insulating self-adhesive tapes. The final product of self-adhesive tapes requires steps such as feeding, film bonding, and winding. However, the current production process of self-adhesive tapes still suffers from several disconnected steps and low automation, which greatly reduces production efficiency and increases production costs. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an automatic self-adhesive tape winding device, which can realize the automated operation of self-adhesive tape from feeding to winding, reducing manual intervention, thereby greatly improving production efficiency and reducing production costs.

[0004] An automatic self-adhesive tape winding device according to an embodiment of the present invention includes:

[0005] feeding device;

[0006] The buffer device includes a first buffer roller and a second buffer roller, the second buffer roller being able to move up and down relative to the first buffer roller; the feeding device is used to feed self-adhesive tape to the first buffer roller, the self-adhesive tape being wound around the first buffer roller and the second buffer roller in sequence, the movement of the second buffer roller can drive part of the self-adhesive tape to move up and down.

[0007] A film laminating device includes a first extrusion roller, a second extrusion roller, and a feed roller. The first and second extrusion rollers are arranged in parallel. The first extrusion roller is connected to a first driving device that drives it to press against the second extrusion roller. A self-adhesive tape, after passing through a buffer device, is conveyed between the first and second extrusion rollers. The feed roller supplies film between the first and second extrusion rollers, and the self-adhesive tape and the film are laminated between the first and second extrusion rollers.

[0008] The winding device includes a turntable and winding rods mounted on the turntable. The winding rods are used to wind up the self-adhesive tape after passing through the film bonding device. There are two winding rods. The rotation of the turntable can drive the two winding rods to exchange positions. The winding rods have a winding position and a winding position. The winding rod in the winding position winds up the self-adhesive tape, and the two winding rods alternately wind up the tape.

[0009] The self-adhesive tape automatic winding device according to embodiments of the present invention has at least the following beneficial effects:

[0010] By integrating the buffer device, film bonding device, and winding device into a single structure, the continuous operation of the self-adhesive tape from feeding to winding is ensured. This avoids the time loss caused by transferring the self-adhesive tape between multiple production steps in the prior art, greatly reduces manual intervention, thereby improving production efficiency, reducing production costs, and improving production quality.

[0011] According to some embodiments of the present invention, the buffer device includes a first base frame, a rotating shaft, and a connecting structure. The first buffer roller and the second buffer roller are both mounted on the first base frame. The rotating shaft is rotatably mounted on the first base frame about its own axis. The connecting structure is partially wound around the rotating shaft.

[0012] The driving structure is connected to the rotating shaft and is used to drive the rotating shaft to rotate; the connecting structure is connected to the second buffer roller and the rotation of the rotating shaft can drive the connecting structure to move, thereby driving the second buffer roller to rise and fall.

[0013] According to some embodiments of the present invention, the buffer device further includes a support structure, which is hinged to the first base frame and disposed between the feeding device and the first buffer roller, with a self-adhesive tape portion wrapped around the support structure; the operation of the support structure can send an action signal to the driving structure.

[0014] According to some embodiments of the present invention, the bearing structure includes a support arm and a third buffer roller, the first end of the support arm is hinged to the first base frame, and the third buffer roller is installed at the second end of the support arm; an elastic element is connected between the second end of the support arm and the first base frame.

[0015] According to some embodiments of the present invention, two feed rollers are provided. The two feed rollers alternately supply film between the first extrusion roller and the second extrusion roller.

[0016] According to some embodiments of the present invention, the film bonding device includes a second base frame and a limiting member. The second base frame is provided with a slot, and the feed roller is movably mounted in the slot. The limiting member is mounted on the second base frame and extends partially into the slot. The limiting member is used to fix the position of the feed roller.

[0017] According to some embodiments of the present invention, the winding device further includes a cutting structure, a first clamping assembly, and a second clamping assembly. The cutting structure is used to cut the self-adhesive tape between the two winding bars after the two winding bars have exchanged positions. The first clamping assembly is used to press the first end of the cut self-adhesive tape against the winding bar located at the winding position. The second clamping assembly is used to press the second end of the cut self-adhesive tape against the winding bar located at the rewinding position.

[0018] According to some embodiments of the present invention, the winding device includes a third base frame, and the turntable is mounted on the third base frame; the first clamping assembly includes a first driving member, a first clamping rod, and a first swing arm, a first end of the first swing arm is hinged to the third base frame, and the first clamping rod is mounted on the second end of the first swing arm; the first driving member is used to drive the first swing arm to rotate about the hinge point with the third base frame, so as to drive the first clamping rod to move toward the winding rod;

[0019] The cutting structure is movably mounted on the first swing arm.

[0020] According to some embodiments of the present invention, the first swing arm is mounted with a first slide rail, the length extension direction of the first slide rail being parallel to the length extension direction of the winding rod; the cutting structure is slidably mounted on the first slide rail;

[0021] The first clamping assembly further includes a second clamping rod, which is installed at the second end of the first swing arm and is spaced apart from the first clamping rod.

[0022] The cutting structure includes a cutting blade that extends between the first clamping rod and the second clamping rod.

[0023] According to some embodiments of the present invention, the turntable is provided with a mounting rod, and the mounting rod is fitted with a gear set; the two winding rods are respectively a first winding rod and a second winding rod, the first winding rod is connected to a fourth driving member, the second winding rod is connected to a fifth driving member, the fourth driving member is drivenly connected to the winding rod through the gear set, and the fifth driving member is drivenly connected to the second winding rod through the gear set.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram showing the position of the second buffer roller during normal winding of the buffer device according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram showing the position of the second buffer roller in the buffer device of this invention when the drum is replaced.

[0029] Figure 4 This is a cross-sectional view of the film bonding apparatus according to an embodiment of the present invention;

[0030] Figure 5 This is an assembly diagram of the winding device according to an embodiment of the present invention;

[0031] Figure 6 A cross-sectional view of the winding rod of the winding device according to an embodiment of the present invention during winding;

[0032] Figure 7 This is a cross-sectional view of the winding device according to an embodiment of the present invention after the winding rods have been swapped.

[0033] Figure 8 This is an assembly diagram of the first clamping component and the cutting structure of the winding device according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the gear assembly of the winding device according to an embodiment of the present invention;

[0035] Figure 10 for Figure 1 Enlarged view of point A in the middle;

[0036] Figure 11 for Figure 1 Enlarged view of point B in the middle;

[0037] Figure 12 for Figure 1 Enlarged view of point C in the middle.

[0038] Icon labels:

[0039] Feeding device 1000;

[0040] The buffer device 2000, the first base frame 2100, the first buffer roller 2110, the drive structure 2120, the rotating shaft 2130, the fixed gear 2131, the connecting structure 2140, the counterweight 2150, the first guide rod 2160, the first limiting structure 2161, the second guide rod 2170, the second limiting structure 2171, the triggering structure 2180, the second buffer roller 2200, the movable frame 2210, the bearing structure 2300, the support arm 2310, the third roller 2320, and the elastic element 2330;

[0041] Film laminating device 3000, second base frame 3100, first extrusion roller 3110, connector 3111, second extrusion roller 3120, roller slide rail 3130, slot 3140, limiting hole 3141, third gear 3150, intermediate shaft 3160, feeding roller 3200, retaining ring 3210, embedding section 3211, second gear 3220, first drive device 3300, second drive device 3400, first gear 3410;

[0042] The components include: winding device 4000, third base frame 4100, second slide rail 4110, mounting rod 4120, gear set 4130, first gear set 4140, first large gear 4141, first small gear 4142, connecting pipe 4143, second gear set 4150, second large gear 4151, second small gear 4152, drive gear 4160, third drive device 4161, fourth drive component 4170, ejector pin 4171, mounting bracket 4180, turntable 4200, first winding rod 4210, first drive device 4211, first transmission gear 4212, second winding rod 4220, and second drive... The device comprises: a second transmission gear 4222, an external gear 4230, a cutting structure 4300, a cutting blade 4310, a first clamping assembly 4400, a first driving component 4410, a first swing arm 4420, a mounting hole 4421, a first clamping rod 4430, a first slide rail 4440, a second clamping rod 4450, a first rotating shaft 4460, a telescopic structure 4470, a second clamping assembly 4500, a second driving component 4510, a second swing arm 4520, a third clamping rod 4530, a second rotating shaft 4540, a third clamping assembly 4600, a third driving component 4610, and a fourth clamping rod 4620. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0046] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0047] Reference Figures 1 to 12 An automatic self-adhesive tape winding device according to an embodiment of the present invention includes a feeding device 1000, a buffer device 2000, a film laminating device 3000, and a winding device 4000. The feeding device 1000 feeds self-adhesive tape to the buffer device 2000. After passing through the buffer device 2000, the self-adhesive tape enters the film laminating device 3000 and is laminated with a film to form a finished self-adhesive tape. The finished self-adhesive tape then enters the winding device 4000 for winding. The automatic winding device of this embodiment can realize fully automated operation of self-adhesive tape from feeding to winding, greatly improving production efficiency and reducing labor costs.

[0048] The buffer device 2000 of this embodiment includes a first base frame 2100, on which a first buffer roller 2110 and a second buffer roller 2200 are mounted. The second buffer roller 2200 is movably and vertically mounted on the first base frame 2100. A feeding device 1000 is used to feed self-adhesive tape to the first buffer roller 2110. The self-adhesive tape is sequentially wound around the first buffer roller 2110 and the second buffer roller 2200. The lifting and lowering of the second buffer roller 2200 can drive a portion of the self-adhesive tape to lift and lower. The film laminating device 3000 includes a first extrusion roller 3110, a second extrusion roller 3120, and a feed roller 3200. The first extrusion roller 3110 and the second extrusion roller 3120 are arranged in parallel. The first extrusion roller 3110 is connected to a first driving device 3300 that drives it to press against the second extrusion roller 3120. The self-adhesive tape is conveyed between the first extrusion roller 3110 and the second extrusion roller 3120 through the buffer device 2000. The feed roller 3200 is used to supply film between the first extrusion roller 3110 and the second extrusion roller 3120, and the self-adhesive tape and the film are laminated between the first extrusion roller 3110 and the second extrusion roller 3120. The winding device 4000 includes a turntable 4200 and winding rods mounted on the turntable 4200. The winding rods are used to wind up the self-adhesive tape after passing through the film laminating device 3000. There are two winding rods. The rotation of the turntable 4200 can drive the two winding rods to exchange positions. The winding rods have a winding position and a winding position. The winding rod in the winding position winds up the self-adhesive tape. The two winding rods take turns winding.

[0049] In this embodiment, a roll is fitted onto the take-up arm for winding the self-adhesive tape. Only one take-up arm is used for winding the self-adhesive tape at a time. After the self-adhesive tape is wound around the roll of one take-up arm for a certain length, the take-up arm needs to be replaced for winding. Since the feeding device 1000 is still continuously feeding the self-adhesive tape while the new take-up arm has not yet started winding, the self-adhesive tape between the feeding device 1000 and the first buffer roller 2110 will sag due to its own weight. If the take-up arm replacement time is too long, this part of the self-adhesive tape may even fall to the position of contact with the ground. During the take-up arm replacement process, the self-adhesive tape is lifted by the rise of the second buffer roller 2200, which can effectively tighten the self-adhesive tape and thus prevent the self-adhesive tape from falling to the position of contact with the ground.

[0050] Reference Figures 1 to 3 As shown, the first buffer roller 2110 is rotatably mounted on the first base frame 2100 around its own axis. Multiple first buffer rollers 2110 are provided, and they are evenly spaced along the horizontal direction. The second buffer roller 2200 is connected to a drive structure 2120 that drives its lifting and lowering.

[0051] In this embodiment, a movable frame 2210 is also included, and the second buffer roller 2200 is mounted on the movable frame 2210. Multiple second buffer rollers 2200 are also provided, and the multiple second buffer rollers 2200 are respectively disposed within the intervals between the multiple first buffer rollers 2110. (Refer to...) Figure 2 , Figure 3 As shown, the self-adhesive tape is first wound around the first buffer roller 2110 near the feeding device 1000, then wound around the second buffer roller 2200, the first buffer roller 2110, the second buffer roller 2200, and so on. The drive structure 2120 is connected to the movable frame 2210 and is used to drive the movable frame 2210 to move up and down in the vertical direction.

[0052] In this embodiment, a rotating shaft 2130 and a connecting structure 2140 are also included. The rotating shaft 2130 is rotatably mounted on the first base frame 2100 about its own axis, and the connecting structure 2140 is partially wound around the rotating shaft 2130. A driving structure 2120 is connected to the rotating shaft 2130 and is used to drive the rotating shaft 2130 to rotate. The connecting structure 2140 is connected to the second buffer roller 2200. The rotation of the rotating shaft 2130 can drive the connecting structure 2140 to move, thereby driving the second buffer roller 2200 to rise and fall. (Refer to...) Figure 1As shown, the drive structure 2120 is a motor, and the rotating shaft 2130 is connected to the drive structure 2120 via chain drive. A gear is installed at the output end of the drive structure 2120, and a gear is also installed at the end of the rotating shaft 2130 via a key or other means. The gear at the output end of the drive structure 2120 and the gear at the end of the rotating shaft 2130 are connected via chain drive.

[0053] It is conceivable that the drive structure 2120 and the rotating shaft 2130 can be connected by belt drive or directly by gear meshing; however, the chain drive method is more convenient for the position arrangement of the drive structure 2120, and the chain drive is more stable and reliable than the belt drive, and is less prone to slippage and other problems.

[0054] Reference Figures 1 to 3 As shown, in this embodiment, the connecting structure 2140 is a chain. The first end of the connecting structure 2140 is connected to the second buffer roller 2200, and the second end of the connecting structure 2140 is connected to a counterweight 2150. A fixed gear 2131 is sleeved on the rotating shaft 2130, and the middle part of the connecting structure 2140 is wound around the fixed gear 2131. Specifically, the fixed gear 2131 is connected to the rotating shaft 2130 by means of keys, welding, etc. The driving structure 2120 drives the rotating shaft 2130 to rotate, which can drive the fixed gear 2131 to rotate synchronously. Since the connecting structure 2140 is a chain, the rotation of the fixed gear 2131 can drive the chain to rise and fall, thereby driving the movable frame 2210 to rise and fall, and finally driving the second buffer roller 2200 to rise and fall. Furthermore, two fixed gears 2131 are provided, spaced apart along the length of the rotation shaft 2130; similarly, two connecting structures 2140 are also provided, each wound around one of the two fixed gears 2131. Connecting the movable frame 2210 via the two connecting structures 2140 makes the lifting and lowering of the movable frame 2210 more stable and reliable.

[0055] In this embodiment, two rotating shafts 2130 are provided, respectively positioned above the movable frame 2210 and the counterweight 2150, and connected by a chain drive. The placement of two rotating shafts 2130 above the movable frame 2210 and the counterweight 2150 ensures that the connecting structure 2140 remains vertical during the lifting and lowering of the movable frame 2210 and the counterweight 2150, preventing radial forces on the connecting structure 2140 and effectively extending its service life. The counterweight 2150 effectively reduces the load on the drive structure 2120.

[0056] In this embodiment, refer to Figure 1 , Figure 10As shown, the first base frame 2100 is provided with a first guide rod 2160 and a second guide rod 2170. The movable frame 2210 is slidably mounted on the first guide rod 2160, and the counterweight 2150 is slidably mounted on the second guide rod 2170. The purpose of setting the first guide rod 2160 is to ensure the vertical lifting and lowering of the movable frame 2210. Similarly, the purpose of setting the second guide rod 2170 is to ensure the vertical lifting and lowering of the counterweight 2150.

[0057] In this embodiment, the first guide rod 2160 is provided with a first limiting structure 2161, which is used to limit the lowering stroke end point of the movable frame 2210; the second guide rod 2170 is provided with a second limiting structure 2171, which is used to limit the lowering stroke end point of the counterweight 2150. Specifically, refer to... Figure 10 As shown, when the movable frame 2210 descends to abut against the first limiting structure 2161, it can no longer descend, thus ensuring that the second buffer roller 2200 is always above the first buffer roller 2110, effectively tensioning the self-adhesive tape. When the counterweight 2150 descends to abut against the second limiting structure 2171, it can no longer descend, thus preventing the movable frame 2210 from rising further. The second limiting structure 2171 prevents the movable frame 2210 from rising excessively, avoiding excessive waste of self-adhesive tape between the first buffer roller 2110 and the second buffer roller 2200.

[0058] In another embodiment of the invention, the connecting structure 2140 is a cable; the first end of the connecting structure 2140 is connected to the second buffer roller 2200, and the second end of the connecting structure 2140 is wound around the rotating shaft 2130. Specifically, if the connecting structure 2140 is a cable, there is no need to set the counterweight 2150 and the rotating shaft 2130; the rotating shaft 2130 only needs to be set above the movable frame 2210. When the driving structure 2120 drives the rotating shaft 2130 to rotate forward, it can drive the connecting structure 2140 to wind or unwind. However, the cable requires more power from the driving structure 2120, and the cable has lower stability and a higher failure rate compared to the chain.

[0059] In this embodiment, a support structure 2300 is also included. The support structure 2300 is hinged to the first base frame 2100 and disposed between the feeding device 1000 and the first buffer roller 2110. A self-adhesive tape portion is wound around the support structure 2300. The operation of the support structure 2300 can send an action signal to the drive structure 2120. Specifically, the support structure 2300 includes a support arm 2310 and a third roller 2320. The first end of the support arm 2310 is hinged to the first base frame 2100, and the third roller 2320 is mounted on the second end of the support arm 2310. The self-adhesive tape is wound around the third roller 2320. When the support arm 2310 rotates about the hinge point with the first base frame 2100, it can send a clockwise or counterclockwise rotation action signal to the drive structure 2120.

[0060] It is important to understand that when the self-adhesive tape is being wound normally, such as... Figure 2 As shown, the conveying of the self-adhesive tape lifts the third roller 2320, keeping the support arm 2310 in a horizontal position. When changing the take-up bar, the third roller 2320 will fall because the self-adhesive tape is not tensioned, causing the support arm 2310 to rotate about the hinge point with the first base frame 2100. To prevent the self-adhesive tape from bearing the entire weight of the third roller 2320, an elastic element 2330 is connected between the second end of the support arm 2310 and the first base frame 2100; the elastic element 2330 can be a spring or an elastic cord, etc. The elastic element 2330 is not enough to keep the support arm 2310 in a horizontal position, but it can prevent the support arm 2310 from rotating too quickly about the hinge point with the first base frame 2100.

[0061] In this embodiment, the supporting structure 2300 is connected to a trigger structure 2180. The first end of the trigger structure 2180 is movably mounted on the first base frame 2100, and the second end of the trigger structure 2180 is connected to the supporting structure 2300. Rotation of the supporting structure 2300 around its hinge with the first base frame 2100 can drive the trigger structure 2180 to move. The driving structure 2120 is electrically connected to the trigger structure 2180. Specifically, the second end of the trigger structure 2180 is hinged to the support arm 2310. The first end of the trigger structure 2180 is slidably mounted on the first base frame 2100. The first base frame 2100 is provided with a sliding groove. The first end of the trigger structure 2180 is slidably mounted on the sliding groove. The two ends of the sliding groove are respectively provided with a first switch and a second switch. When the support arm 2310 rotates around the hinge with the first base frame 2100, the first end of the trigger structure 2180 contacts the first switch, and the trigger drive structure 2120 rotates clockwise / counterclockwise, thereby driving the movable frame 2210 to rise or fall. When the second end of the trigger structure 2180 retracts, the trigger drive structure 2120 rotates counterclockwise / clockwise, thereby driving the movable frame 2210 to fall or rise.

[0062] It is conceivable that the presence of the trigger structure 2180 limits the rotation range of the support arm 2310. The first and second switches can be touch switches or photoelectric switches.

[0063] It is important to understand that a time delay relay must be installed at the first and second switches. That is, after the drive structure 2120 is activated, it can always activate for the same set time, thereby ensuring that the position is consistent each time it is raised or lowered, and thus ensuring that the movable frame 2210 can automatically reset to the same position each time.

[0064] In this embodiment, the trigger structure 2180 can also be telescopic, such as a cylinder without air supply. The fixed end of the cylinder is connected to the first base frame 2100, and the movable end of the cylinder is hinged to the support arm 2310. When the movable end of the trigger structure 2180 extends, the trigger drive structure 2120 rotates clockwise / counterclockwise. When the movable end of the trigger structure 2180 retracts, the trigger drive structure 2120 rotates counterclockwise / clockwise.

[0065] It is conceivable that the trigger structure 2180 could be omitted, and instead the detection element could be set to detect the movement of the support arm 2310. When the detection element detects that the support arm 2310 has rotated to the set position, the drive structure 2120 could be activated to rotate forward or in reverse.

[0066] According to an embodiment of the present invention, the buffer device 2000 is provided with a second buffer roller 2200 that can be vertically raised and lowered. The raising and lowering of the second buffer roller 2200 can drive a portion of the self-adhesive tape to rise and fall, thereby achieving tension of the self-adhesive tape and effectively preventing the self-adhesive tape from contacting the ground when changing the roll, thus avoiding contamination of the self-adhesive tape.

[0067] The film laminating apparatus 3000 of this embodiment includes a second base frame 3100 and a feed roller 3200. Self-adhesive tape is supplied to the second base frame 3100 via a buffer device 2000. The feed roller 3200 is used to mount the film roll. The second base frame 3100 is equipped with a first extrusion roller 3110 and a second extrusion roller 3120. The self-adhesive tape and the film simultaneously pass between the first extrusion roller 3110 and the second extrusion roller 3120. The first extrusion roller 3110 is connected to a first driving device 3300 that drives it to press against the second extrusion roller 3120. Therefore, the self-adhesive tape and the film can be laminated under the pressure of the first extrusion roller 3110 and the second extrusion roller 3120. (Refer to...) Figure 4 As shown, the self-adhesive tape is positioned above the film.

[0068] In this embodiment, at least two feed rollers 3200 are provided, and multiple feed rollers 3200 alternately supply film between the first extrusion roller 3110 and the second extrusion roller 3120. Generally, two feed rollers 3200 are sufficient. After the film roll on one feed roller 3200 is used up, it can be switched to the film roll on the other feed roller 3200. The switching of the feed rollers 3200 can be done manually or automatically.

[0069] Reference Figure 4 As shown, in this embodiment, the two feed rollers 3200 are arranged vertically at intervals. It is conceivable that the two feed rollers 3200 could also be arranged horizontally at intervals, or at an angle; that is, it is sufficient to have two or more feed rollers 3200 supplying the film roll. The position of the feed rollers 3200 can be determined according to the actual design. For example, to reduce the space occupied by the feed rollers 3200, arranging two feed rollers 3200 vertically at intervals is a common practice. To facilitate the replacement of the film roll on the feed rollers 3200, the two feed rollers 3200 can also be arranged horizontally at intervals. This arrangement allows the two feed rollers 3200 to be at the same height, thus facilitating assembly and disassembly.

[0070] Reference Figure 1 , Figure 2 As shown, in this embodiment, the first extrusion roller 3110 and the second extrusion roller 3120 are also arranged vertically at intervals. It is conceivable that arranging the first extrusion roller 3110 and the second extrusion roller 3120 vertically at intervals can effectively reduce space occupation. Furthermore, since both the self-adhesive tape and the film must pass between the first extrusion roller 3110 and the second extrusion roller 3120, arranging the first extrusion roller 3110 and the second extrusion roller 3120 vertically at intervals ensures that when the tension of the self-adhesive tape and / or film decreases, they can still be wound around the second extrusion roller 3120 and will not detach from it. However, if the first extrusion roller 3110 and the second extrusion roller 3120 are arranged horizontally at intervals, the self-adhesive tape and / or film will easily detach from the second extrusion roller 3120 when the tension of the self-adhesive tape and / or film decreases.

[0071] In some specific embodiments of the present invention, the first driving device 3300, in which the first extrusion roller 3110 presses against the second extrusion roller 3120, can be a hydraulic cylinder, a hydraulic pneumatic cylinder, or a servo motor. First, the first extrusion roller 3110 and the second extrusion roller 3120 should be moved apart to create a gap between them, facilitating the placement of the self-adhesive tape and film. After both the self-adhesive tape and film have passed between the first extrusion roller 3110 and the second extrusion roller 3120, the first extrusion roller 3110 is driven to press against the second extrusion roller 3120.

[0072] In this embodiment, the second base frame 3100 is provided with a roller slide rail 3130 arranged vertically. The first extrusion roller 3110 is slidably mounted on the roller slide rail 3130, and the first driving device 3300 is used to drive the first extrusion roller 3110 to move up and down along the roller slide rail 3130. Specifically, as can be seen from the above, the first extrusion roller 3110 and the second extrusion roller 3120 are arranged at intervals in the vertical direction, therefore the length extension direction of the roller slide rail 3130 is vertical. (Refer to...) Figure 1 , Figure 11 As shown, a connector 3111 is sleeved at the end of the first extrusion roller 3110. The connector 3111 is partially embedded in the roller slide rail 3130 and can slide along the roller slide rail 3130. The first drive device 3300 is connected to the connector 3111.

[0073] In some specific embodiments of the present invention, two roller rails 3130 are provided and respectively disposed at both ends of the length direction of the first extrusion roller 3110. Connectors 3111 are provided at both ends of the length direction of the first extrusion roller 3110. Therefore, two first driving devices 3300 are also provided, and both first driving devices 3300 are mounted on the second base frame 3100. By driving both ends of the first extrusion roller 3110 to move simultaneously through the two first driving devices 3300, the first extrusion roller 3110 and the second extrusion roller 3120 can be better fitted together, thereby ensuring that no air bubbles exist between the self-adhesive tape and the film.

[0074] It is conceivable that the first extrusion roller 3110 and the second extrusion roller 3120 must be arranged in parallel, that is, the central axis of the first extrusion roller 3110 and the central axis of the second extrusion roller 3120 must be parallel in order to make the self-adhesive tape and the film adhere better.

[0075] It is important to understand that neither the first extrusion roller 3110 nor the second extrusion roller 3120 is connected to a power device that drives its rotation. This is because the finished self-adhesive tape, after being bonded to the film, is wound up by a take-up rod, which is connected to a power device that drives its rotation. Therefore, the finished self-adhesive tape is moved by the take-up rod, and as the finished self-adhesive tape moves, the self-adhesive tape and the film are also pulled along. Hence, neither the first extrusion roller 3110 nor the second extrusion roller 3120 is connected to a power device that drives its rotation.

[0076] In this embodiment, the feeding roller 3200 is detachably mounted on the second base frame 3100. Specifically, as mentioned above, there are multiple feeding rollers 3200, generally two. A film roll is sleeved on the feeding roller 3200, and the film rolls of the two feeding rollers 3200 alternately feed material between the first extrusion roller 3110 and the second extrusion roller 3120. The switching of the feeding rollers 3200 can be manual or automatic. In this embodiment, the feeding rollers 3200 are switched manually, therefore, the feeding rollers 3200 need to be detachably mounted on the second base frame 3100 to facilitate the switching of the feeding rollers 3200.

[0077] In this embodiment, the second base frame 3100 is provided with a slot 3140, and the feeding roller 3200 is movably installed in the slot 3140; it also includes a limiting member, which is installed in the second base frame 3100 and partially extends into the slot 3140. The limiting member is used to fix the position of the feeding roller 3200. Specifically, refer to... Figure 1 , Figure 12 As shown, the slot 3140 has an opening on one side. When the end of the feed roller 3200 is inserted into the slot 3140, the limiting member effectively prevents the feed roller 3200 from disengaging from the slot 3140, thereby fixing the position of the feed roller 3200. The second base frame 3100 is provided with two slots 3140, and both ends of the feed roller 3200 are respectively inserted into the two slots 3140; therefore, two limiting members are also provided, which are used to fix the positions of both ends of the feed roller 3200.

[0078] In this embodiment, a limiting hole 3141 is provided on one side of the slot 3140, and a limiting member passes through the limiting hole 3141. Specifically, refer to... Figure 4 As shown, the limiting component is a pin, which is inserted into the limiting hole 3141 to prevent the feed roller 3200 from disengaging from the slot 3140.

[0079] It is conceivable that the position of the feed roller 3200 can be fixed by means of a pin. Different methods can be set according to the position of the limiting hole 3141. For example, if the position of the limiting hole 3141 is set relatively close to the opening side of the slot 3140, the limiting member only serves to limit the position of the feed roller 3200, and the feed roller 3200 can still rotate around its own axis. If the position of the limiting hole 3141 coincides with the center position of the feed roller 3200 installed in the slot 3140, and the limiting member is replaced by a bolt and the limiting hole 3141 is set as a threaded hole, then the limiting member is pressed against the surface of the feed roller 3200, thereby restricting the rotation of the feed roller 3200 around its own axis.

[0080] It is important to understand that, since the feed roller 3200 needs to be fitted with a film roll, and the film roll needs to be unwound, at least one of the feed roller 3200 and the film roll must be able to rotate around its own axis. For example, if the film roll is fitted with the feed roller 3200 but is connected to the feed roller 3200 by means of a key or other transmission, then the feed roller 3200 must be rotatably mounted on the second base frame 3100 around its own axis. If the film roll is fitted with the feed roller 3200 but can rotate relative to the feed roller 3200, then the feed roller 3200 can be mounted on the second base frame 3100 without rotating around its own axis.

[0081] It is conceivable that the feed roller 3200 should be equipped with a limiting structure to limit the film roll, and the limiting structure should be able to restrict the film roll from sliding along the length direction of the feed roller 3200 during the unwinding process.

[0082] In this embodiment, the limiting component is not limited to using pins or bolts, but can also be a structure such as an elastic stop on the frame. That is, the specific limiting component can be flexibly set.

[0083] In this embodiment, the end of the feed roller 3200 is provided with two radially protruding retaining rings 3210. The two retaining rings 3210 are spaced apart along the length direction of the feed roller 3200, and an embedding section 3211 is formed between the two retaining rings 3210; the embedding section 3211 is installed in the slot 3140. Specifically, refer to... Figure 12 As shown, the length of the embedding section 3211 should be equivalent to the thickness of the slot 3140 so that when the embedding block is inserted into the slot 3140, the feeding roller 3200 can no longer slide relative to the second base frame 3100 along the length direction of the feeding roller 3200.

[0084] When it is necessary to remove the feed roller 3200, the feed roller 3200 can be taken out from the opening side of the slot 3140 by simply removing the limiting part. The disassembly and assembly method is simple and efficient, and the manufacturing cost is low.

[0085] In this embodiment, refer to Figure 12 As shown, it also includes a second drive device 3400, which is mounted on the second base frame 3100. The output end of the second drive device 3400 is connected to the feed roller 3200 for transmission. Specifically, in this embodiment, each feed roller 3200 is connected to a second drive device 3400, which is generally a motor. The second drive device 3400 is used to drive the feed roller 3200 to rotate around its own axis. In this embodiment, a film roll is sleeved on the feed roller 3200 but is connected to the feed roller 3200 for transmission via a key or other means. The feed roller 3200 must be mounted on the second base frame 3100 for rotation around its own axis. The purpose of providing the second drive device 3400 is to adjust the rotation speed of the feed roller 3200. After the self-adhesive tape and film are bonded together to form the finished self-adhesive tape, they need to be wound up. During the winding process, the winding rod needs to be replaced after a certain length is wound up. Since the finished self-adhesive tape is not wound up during the winding rod replacement process, the self-adhesive tape and film may fall off. At this time, it is necessary to appropriately reduce the rotation speed of the feed roller 3200 to prevent the film from being supplied too much and causing the film to come into contact with the ground. Therefore, a second drive device 3400 is provided to adjust the rotation speed of the feed roller 3200 around its own axis.

[0086] In this embodiment, the output end of the second drive device 3400 is provided with a first gear 3410, and the end of the feed roller 3200 is provided with a second gear 3220; it also includes a third gear 3150, which is mounted on the second base frame 3100, and the first gear 3410 and the second gear 3220 are connected by the third gear 3150. Specifically, refer to... Figure 12 As shown, the third gear 3150 is used as an intermediate gear to connect the first gear 3410 and the second gear 3220. The third gear 3150 can act as a differential. That is, if the first gear 3410 is smaller and the third gear 3150 is larger, the setting of the third gear 3150 can effectively reduce the rotational speed of the second gear 3220. In addition, since the feed roller 3200 is detachably installed on the second base frame 3100, if the second gear 3220 directly meshes with the first gear 3410, it is easy to cause wear of the second gear 3220 or the first gear 3410 during frequent disassembly and assembly. The third gear 3150 can effectively alleviate this situation.

[0087] In this embodiment, the second base frame 3100 is also equipped with a plurality of intermediate shafts 3160. The intermediate shafts 3160 are disposed between the second extrusion roller 3120 and the feed roller 3200, and the film portion supplied by the feed roller 3200 is wound around the intermediate shafts 3160. Specifically, refer to Figure 4As shown, multiple intermediate shafts 3160 are provided, and the multiple intermediate shafts 3160 are arranged at different heights. The purpose of providing multiple intermediate shafts 3160 is to tension the film and also to better change the film's conveying direction, that is, to change the angle at which the film enters the first extrusion roller 3110 and the second extrusion roller 3120.

[0088] According to the embodiment of the present invention, the film laminating apparatus 3000 is provided with at least two feeding rollers 3200, and the film is supplied alternately by the two feeding rollers 3200. Therefore, it can ensure continuous lamination of self-adhesive tape and film, thereby greatly improving the lamination production efficiency. The feeding and lamination of self-adhesive tape and film can be automated without human intervention, thus reducing labor costs.

[0089] The winding device 4000 of this embodiment includes a third base frame 4100 and a turntable 4200 mounted on the third base frame 4100. The turntable 4200 is rotatably mounted on the third base frame 4100 about its own axis. The third base frame 4100 has a through hole, and multiple bearings are mounted on the wall of the through hole, with the bearings evenly spaced around the circumference. The turntable 4200 is installed inside the through hole, and its outer peripheral wall contacts the multiple bearings, so that the turntable 4200 is mounted on the third base frame 4100 and can rotate about its own central axis. (Refer to...) Figure 5 As shown, one end of the turntable 4200 is equipped with an external gear 4230, which meshes with a drive gear 4160. The drive gear 4160 is connected to a third drive device 4161, which is typically a motor, to drive its rotation. The diameter of the drive gear 4160 is much larger than that of the turntable 4200. Therefore, the third drive device 4161 drives the drive gear 4160 to rotate rapidly, which in turn drives the turntable 4200 to rotate slowly. To obtain a suitable rotation speed for the turntable 4200, the rotational speed of the third drive device 4161 or the gear ratio between the external gear 4230 and the drive gear 4160 can be adjusted.

[0090] In this embodiment, refer to Figures 5 to 7 As shown, two take-up rods are installed on the turntable 4200, respectively, on opposite sides of the turntable 4200. A drum is typically fitted onto each take-up rod for winding the self-adhesive tape. The turntable 4200 rotates 180 degrees each time, thereby swapping the positions of the two take-up rods.

[0091] It's conceivable that three or four winding rods could be installed, but more winding rods are not necessarily better. Generally, two winding rods are sufficient. However, if three or four winding rods are installed, the angle of each 4200-degree rotation of the turntable will need to be adjusted.

[0092] It's important to understand that only one take-up bar is used to take up the self-adhesive tape at a time. For ease of understanding, this is described using a first take-up bar 4210 and a second take-up bar 4220. If the first take-up bar 4210 is taking up the self-adhesive tape, the second take-up bar 4220 is in standby mode. Once the first take-up bar 4210 has taken up a sufficient length of self-adhesive tape, the positions of the first and second take-up bars 4220 are switched. The second take-up bar 4220 then takes up the self-adhesive tape, simultaneously removing the roll of self-adhesive tape already wound on the first take-up bar 4210, and a new roll is then attached to the first take-up bar 4210. Roll replacement can be done manually or by a robotic arm, depending on the specific circumstances.

[0093] As can be seen from the above, the take-up bar has a take-up position and a roll-changing position. The take-up bar in the take-up position takes up the self-adhesive tape, while the take-up bar in the roll-changing position changes the roll. The two take-up bars take up the tape alternately.

[0094] In this embodiment, a cutting structure 4300, a first pressing component 4400, and a second pressing component 4500 are also included. The cutting structure 4300 is used to cut the self-adhesive tape between the two take-up bars after they have exchanged positions. The first pressing component 4400 is used to press the first end of the cut self-adhesive tape against the take-up bar located at the take-up position. The second pressing component 4500 is used to press the second end of the cut self-adhesive tape against the take-up bar located at the rewind position. When the self-adhesive tape between the two take-up bars is cut, the two take-up bars have already exchanged positions. At this time, the sleeve on the take-up bar located at the take-up position has not yet wound the self-adhesive tape. The first pressing component 4400 presses the end of the self-adhesive tape against the take-up bar at the take-up position, which facilitates the continuous winding of the take-up bar at the subsequent take-up position. Correspondingly, when the self-adhesive tape between the two take-up bars is cut, the sleeve on the take-up bar at the change-up position has already taken up enough self-adhesive tape. The second clamping component 4500 presses the end of the self-adhesive tape against the take-up bar at the change-up position, ensuring that the self-adhesive tape is not easily detached from the roll after it has been taken up.

[0095] Current self-adhesive tape winding systems typically use only one winding rod. The winding length is manually judged to cut the rod and change the roll. This requires slowing down the tape's conveying speed, and the manually judged winding length can be inaccurate. However, the winding device 4000 in this embodiment uses two automatically switching winding rods, eliminating the need to reduce the tape's conveying speed during roll changes. A cutting structure 4300 automatically cuts the self-adhesive tape, and the winding rod automatically switches after winding at the current position, reducing manual intervention and significantly improving production efficiency and lowering labor costs. A first pressing component 4400 and a second pressing component 4500 respectively press the ends of the self-adhesive tape on the two winding rods, ensuring winding quality.

[0096] In this embodiment, the first clamping assembly 4400 includes a first clamping rod 4430, a first driving member 4410, and a first swing arm 4420. The first end of the first swing arm 4420 is hinged to the third base frame 4100, and the first clamping rod 4430 is mounted on the second end of the first swing arm 4420. The first driving member 4410 drives the first swing arm 4420 to rotate about the hinge point with the third base frame 4100, thereby causing the first clamping rod 4430 to move towards the winding rod. Specifically, refer to... Figures 6 to 8 As shown, the first clamping assembly 4400 also includes a first rotating shaft 4460, which is rotatably mounted on the third base frame 4100 around its own axis. The first end of the first swing arm 4420 is connected to the first rotating shaft 4460. Two first swing arms 4420 are provided, and the two first swing arms 4420 are spaced apart along the length direction of the first rotating shaft 4460. The two ends of the first clamping rod 4430 are respectively connected to the two first swing arms 4420. The function of the first clamping rod 4430 is to tension the self-adhesive tape. When the two take-up rods exchange positions, the first clamping assembly 4400 moves toward the take-up rod located at the take-up position, thereby tensioning the self-adhesive tape, which facilitates the cutting structure 4300 to cut the self-adhesive tape.

[0097] In some specific embodiments of the present invention, the first driving member 4410 is a telescopic cylinder. The fixed end of the first driving member 4410 is hinged to the third base frame 4100, and the movable end of the first driving member 4410 is hinged to the middle of the first swing arm 4420. Two first driving members 4410 are provided, and the two first driving members 4410 are respectively connected to the two first swing arms 4420. The movable end of the first driving member 4410 extends or retracts, which can drive the first swing arm 4420 to move, thereby driving the first rotating shaft 4460 to rotate.

[0098] It is worth noting that the first swing arm 4420 and the first rotating shaft 4460 can be omitted, and the first pressing rod 4430 can be driven directly towards the take-up rod by the first driving component 4410. However, in order to better adapt to the arrangement of the take-up rod and the turntable 4200, the first pressing rod 4430 is driven to approach the take-up rod by the first swing arm 4420, which can achieve a better tensioning effect on the self-adhesive tape.

[0099] It should be noted that when the movable end of the first drive member 4410 retracts, the first clamping assembly 4400 should be completely below the turntable 4200, so as to avoid obstructing the exchange of positions of the two take-up bars.

[0100] In this embodiment, the cutting structure 4300 is mounted on the first clamping assembly 4400. Specifically, refer to... Figure 8 As shown, the first swing arm 4420 is equipped with a first slide rail 4440, the length extension direction of the first slide rail 4440 being parallel to the length extension direction of the winding rod; the cutting structure 4300 is slidably mounted on the first slide rail 4440. Since the first slide rail 4440 is connected to the first swing arm 4420, when the first swing arm 4420 rotates, the first slide rail 4440 and the cutting structure 4300 will move synchronously.

[0101] In this embodiment, the first clamping assembly 4400 further includes a second clamping rod 4450, which is mounted on the second end of the first swing arm 4420, and is spaced apart from the first clamping rod 4430; the cutting structure 4300 includes a cutting blade 4310, which extends between the first clamping rod 4430 and the second clamping rod 4450. Specifically, refer to... Figures 6 to 8 As shown, when the first clamping assembly 4400 moves to the position of contacting the take-up bar located at the take-up position, the second clamping bar 4450 is located above the first clamping bar 4430. Both the first clamping bar 4430 and the second clamping bar 4450 are in contact with the take-up bar through the self-adhesive tape. Therefore, the self-adhesive tape between the first clamping bar 4430 and the second clamping bar 4450 must be taut. Therefore, by setting the cutting blade 4310 to extend between the first clamping bar 4430 and the second clamping bar 4450, the taut self-adhesive tape can be cut very smoothly.

[0102] In some specific embodiments of the present invention, the second end of the first swing arm 4420 is provided with a mounting hole 4421, and both ends of the second clamping rod 4450 are respectively installed in the mounting holes 4421 of the two first swing arms 4420; the end of the second clamping rod 4450 can slide along the mounting hole 4421; the first swing arm 4420 is also provided with a telescopic mechanism, which is used to drive the second clamping rod 4450 to slide along the mounting hole 4421. Specifically, refer to Figure 8As shown, the mounting hole 4421 is a strip-shaped hole, and the telescopic mechanism is used to drive the second clamping rod 4450 to slide along the strip-shaped hole. The purpose of setting the mounting hole 4421 as a strip-shaped hole and setting the telescopic mechanism is to make the end of the self-adhesive tape adhere tightly to the drum of the take-up rod. When the cutting structure 4300 cuts the self-adhesive tape located between the first clamping rod 4430 and the second clamping rod 4450, the telescopic mechanism extends and drives the second clamping rod 4450 to slide along the strip-shaped hole, so that the second clamping rod 4450 can slide a short distance along the surface of the take-up rod. At this time, since the self-adhesive tape between the first clamping rod 4430 and the second clamping rod 4450 is cut off, this short distance that the second clamping rod 4450 slides along the surface of the take-up rod is equivalent to rolling the end of the self-adhesive tape once, so that the end of the self-adhesive tape adheres tightly to the drum sleeved on the take-up rod.

[0103] In this embodiment, the second clamping assembly 4500 includes a second rotating shaft 4540, a second driving member 4510, a second swing arm 4520, and a third clamping rod 4530. The second rotating shaft 4540 is rotatably mounted on the third base frame 4100 around its own axis. The second rotating shaft 4540 passes through the middle of the second swing arm 4520. The second driving member 4510 is connected to the first end of the second swing arm 4520, and the third clamping rod 4530 is mounted on the second end of the second swing arm 4520. The second driving member 4510 is used to drive the second swing arm 4520 to rotate around the second rotating shaft 4540, so as to drive the third clamping rod 4530 to contact the take-up bar located at the winding position. Specifically, refer to... Figures 5 to 7 As shown, the second clamping assembly 4500 is located above the first clamping assembly 4400 and also above the turntable 4200. After the third clamping rod 4530 contacts the take-up rod located at the change-up position, it can press the end of the self-adhesive tape wound on the take-up rod at the change-up position tightly against the take-up rod. Two second swing arms 4520 are provided, and the two second swing arms 4520 are spaced apart along the length direction of the second rotating shaft 4540. The two ends of the third clamping rod 4530 are respectively connected to the two second swing arms 4520. The second driving member 4510 is also a telescopic cylinder or similar structure. The fixed end of the second driving member 4510 is hinged to the third base frame 4100, and the telescopic end of the second driving member 4510 is hinged to the second swing arm 4520. There are also two second driving members 4510, and the two second driving members 4510 are respectively connected to the two second swing arms 4520.

[0104] It is conceivable that the second clamping assembly 4500 may also omit the second swing arm 4520 and the second rotating shaft 4540, and directly drive the third clamping rod 4530 to move to the contact position with the winding rod through the second driving member 4510.

[0105] In this embodiment, a third clamping assembly 4600 is also included. The third clamping assembly 4600 cooperates with the first clamping assembly 4400 to tension the self-adhesive tape on the surface of the take-up bar located at the take-up position, thereby facilitating the cutting structure 4300 to cut the self-adhesive tape. Specifically, refer to... Figure 6 , Figure 7 As shown, the third clamping assembly 4600 includes a third driving member 4610 and a fourth clamping rod 4620. The third base frame 4100 is provided with a second slide rail 4110. The fourth clamping rod 4620 is slidably mounted on the second slide rail 4110. The third driving member 4610 is used to drive the fourth clamping rod 4620 to slide along the second slide rail 4110. When the fourth clamping rod 4620 slides to the end position of its stroke, it can contact the take-up rod located at the take-up position. The purpose of providing the third clamping assembly 4600 is to facilitate the take-up of the self-adhesive tape on a new roll. Figure 7 For example, the diameter of the third clamping rod 4530 is significantly larger than that of the first clamping rod 4430 and the second clamping rod 4450, and the third clamping rod 4530 and the second clamping rod 4450 can be considered as pressing against the opposite sides of the winding rod respectively. After the two winding rods exchange positions, the third clamping assembly 4600 acts first, followed by the first clamping assembly 4400.

[0106] It is conceivable that if the third clamping component 4600 is not provided, and only the first clamping component 4400 and the second clamping component 4500 are provided, then after the two take-up bars have exchanged positions, only the first clamping component 4400 will be in contact with the take-up bar at the take-up position. Figure 7 As can be seen, the self-adhesive tape is wound upwards from the bottom of the take-up bar, that is, from... Figure 7 For example, the self-adhesive tape is wound counterclockwise. After the second clamping rod 4450 pushes the end of the self-adhesive tape to adhere to the drum, the take-up rod at the take-up position begins to take up the tape. However, the self-adhesive tape itself does not have strong adhesiveness. Without the third clamping component 4600, the weight of the self-adhesive tape itself can easily cause the end of the self-adhesive tape to detach from the take-up rod. Therefore, the third clamping component 4600 is provided to enable the take-up rod to take up the self-adhesive tape more stably.

[0107] In this embodiment, the turntable 4200 is provided with a mounting rod 4120, and a gear set 4130 is sleeved on the mounting rod 4120; the two take-up rods are a first take-up rod 4210 and a second take-up rod 4220, respectively; the third base frame 4100 is equipped with a first drive device 4211 and a second drive device 4221, the first drive device 4211 is connected to the first take-up rod 4210 through the gear set 4130, and the second drive device 4221 is connected to the second take-up rod 4221 through the gear set 4130. Specifically, refer to... Figure 5As shown, the mounting rod 4120 is positioned at the center of the turntable 4200, and the gear set 4130 is sleeved on the mounting rod 4120 and can rotate around the mounting rod 4120. A first transmission gear 4212 is mounted on the end of the first winding rod 4210, and a second transmission gear 4222 is mounted on the end of the second winding rod 4220. Both the first transmission gear ring and the second transmission gear 4222 mesh with the gear set 4130. The rotation of the first transmission gear 4212 can drive the first winding rod 4210 to rotate, and the rotation of the second transmission gear 4222 can drive the second winding rod 4220 to rotate. The first drive device 4211 and the second drive device 4221 are also meshed with the gear set 4130. The first drive device 4211 drives the first transmission gear 4212 to rotate through the gear set 4130, thereby driving the first take-up rod 4210 to rotate. The second drive device 4221 drives the second transmission gear 4222 to rotate through the gear set 4130, thereby driving the second take-up rod 4220 to rotate.

[0108] It is important to understand that the first take-up bar 4210 can be in either the take-up or change-up position, and the second take-up bar 4220 can also be in either position. The switching between the take-up and change-up positions of the first take-up bar 4210 is achieved by the third drive device 4161 driving the turntable 4200 to rotate. The first drive device 4211 is only used to drive the first take-up bar 4210 to rotate around its own axis. Similarly, the switching between the take-up and change-up positions of the second take-up bar 4220 is also achieved by the third drive device 4161 driving the turntable 4200 to rotate. The second drive device 4221 is only used to drive the second take-up bar 4220 to rotate around its own axis.

[0109] In this embodiment, the gear set 4130 includes a first gear set 4140 and a second gear set 4150. A first drive device 4211 is connected to a first take-up rod 4210 via the first gear set 4140, and a second drive device 4221 is connected to a second take-up rod 4220 via the second gear set 4150. The second gear set 4150 is mounted on the first gear set 4140, and the first gear set 4140 can rotate relative to the second gear set 4150. Specifically, refer to... Figure 9 As shown, the first gear set 4140 includes a first large gear 4141, a first small gear 4142, and a connecting tube 4143. The connecting tube 4143 is sleeved on the mounting rod 4120, and the first large gear 4141 and the first small gear 4142 are respectively connected to the two ends of the connecting tube 4143. The second gear set 4150 is sleeved on the connecting tube 4143 and is located between the first large gear 4141 and the first small gear 4142.

[0110] In some specific embodiments of the present invention, the first large gear 4141 is fixedly connected to the first end of the connecting pipe 4143, for example, by welding or by bolting; the first small gear 4142 is fixedly connected to the second end of the connecting pipe 4143, for example, by welding or by bolting. In this embodiment, the first large gear 4141 is welded to the first end of the connecting pipe 4143, and the first small gear 4142 is bolted to the second end of the connecting pipe 4143. That is, when the first large gear 4141 rotates, it can drive the first small gear 4142 to rotate synchronously. The output end of the first driving device 4211 meshes with the first large gear 4141, and the first transmission gear 4212 meshes with the first small gear 4142.

[0111] Furthermore, the second gear set 4150 includes a second large gear 4151 and a second small gear 4152, which are fixedly connected, for example, by welding. Rotation of the second large gear 4151 drives the second small gear 4152 to rotate synchronously. The second large gear 4151 meshes with the output end of the second drive device 4221, and the second small gear 4152 meshes with the second transmission gear 4222. Both the second large gear 4151 and the second small gear 4152 have through holes at their centers for the connecting pipe 4143 to pass through, allowing the second gear set 4150 to rotate around the connecting pipe 4143.

[0112] It is conceivable that designing the first pinion 4142 to be bolted to the connecting pipe 4143 is to facilitate the installation of the second gear set 4150. By combining the first gear set 4140 and the second gear set 4150 into a gear set 4130, space can be effectively saved, making the equipment more compact. The length of each winding can be controlled by setting the operating time or number of rotations of the first drive device 4211 and / or the second drive device 4221.

[0113] In this embodiment, refer to Figure 5 As shown, the third base frame 4100 is provided with a mounting frame 4180, on which the first drive device 4211 and the second drive device 4221 are both mounted. The end of the mounting rod 4120 is also connected to the mounting frame 4180. Since the mounting rod 4120 is located on the turntable 4200, and the mounting rod 4120 is connected to the mounting frame 4180, the turntable 4200 can be supported by the mounting frame 4180, thereby achieving the positioning of the turntable 4200 and ensuring the stability of the rotation of the turntable 4200.

[0114] In this embodiment, the third base frame 4100 is also equipped with a fourth drive member 4170 and a push pin 4171. The fourth drive member 4170 is a telescopic cylinder, and the push pin 4171 is connected to the movable end of the fourth drive member 4170. The fixed end of the fourth drive member 4170 is mounted on the third base frame 4100. The push pin 4171 can hold the end of the winding rod located at the winding position, thereby reducing the shaking of the winding rod during the winding process. (Refer to...) Figure 1 , Figure 5 As shown, when the take-up bar is in the take-up position, the ejector pin 4171 is aligned with the take-up bar in the take-up position. After the turntable 4200 stops rotating, the fourth drive member 4170 drives the ejector pin 4171 to press against the take-up bar in the take-up position. The pressing of the ejector pin 4171 makes the rotation of the take-up bar more stable, thereby effectively improving the take-up quality.

[0115] Reference Figure 6 , Figure 7 As shown, the automatic switching process of the two winding rods in this embodiment is as follows (using...). Figure 6 For example, the take-up bar located at the take-up position is defined as the first take-up bar 4210, and the take-up bar located at the change-up position is defined as the second take-up bar 4220:

[0116] S1. The first driving device 4211 drives the first winding rod 4210 to continuously wind up, while the second winding rod 4220 remains stationary.

[0117] S2. After the first drive device 4211 drives the first take-up bar 4210 to rotate a set number of revolutions or operate for a set time, the first drive device 4211 reduces its rotation speed, and the third drive device 4161 drives the turntable 4200 to rotate. When the turntable 4200 rotates 180 degrees, the first take-up bar 4210 stops rotating. At this time, the first take-up bar 4210 rotates to the roll-changing position, and the second take-up bar 4220 rotates to the take-up position, that is... Figure 7 Location;

[0118] S3, the third clamping assembly 4600 is activated, causing the fourth clamping rod 4620 to slide along the second slide rail 4110 to the end position of the travel, so that the fourth clamping rod 4620 abuts against the second winding rod 4220;

[0119] S4. The first clamping assembly 4400 actuates, causing the first clamping rod 4430 and the second clamping rod 4450 to abut against the second take-up rod 4220; the second clamping assembly 4500 actuates, causing the third clamping rod 4530 to abut against the first take-up rod 4210; the final position is as follows. Figure 7 As shown;

[0120] S5. The cutting structure 4300 slides along the first slide rail 4440 to cut the self-adhesive tape;

[0121] S6. The telescopic mechanism is activated, driving the second clamping rod 4450 to slide along the mounting hole 4421 so that one end of the self-adhesive tape at the cut position is attached to the second winding rod 4220.

[0122] S7. The first driving device 4211 is activated, driving the first winding rod 4210 to rotate; the second driving device 4221 is activated, driving the second winding rod 4220 to rotate.

[0123] S8. The first clamping assembly 4400 and the third clamping assembly 4600 are reset in sequence, and the second winding rod 4220 continues to rotate.

[0124] S9. The second clamping assembly 4500 is reset, and the first winding rod 4210 stops rotating.

[0125] S10. The drum on the first take-up bar 4210 is removed manually or by means of a robotic arm, and a new drum is put on, thus returning to the starting position. Figure 6 The state shown.

[0126] It is important to understand that in S8 and S9, the second pressing assembly 4500 is the last to reset. This is because the cutting structure 4300 cuts the self-adhesive tape at the position of the second take-up bar 4220. Therefore, when the first take-up bar 4210 starts to rotate in S7, it needs to rotate many times to completely wrap the self-adhesive tape at the cut position onto the first take-up bar 4210. Hence, the second pressing assembly 4500 is the last to reset.

[0127] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automatic self-adhesive tape rewinding device, characterized in that, It includes a feeding device, a buffer device, a film laminating device, and a winding device connected in sequence; The buffer device includes a first buffer roller, a second buffer roller, a first base frame, a rotating shaft, and a connecting structure. Both the first and second buffer rollers are mounted on the first base frame. The rotating shaft is rotatably mounted on the first base frame around its own axis. A portion of the connecting structure is wound around the rotating shaft. The rotating shaft is connected to a driving structure, which drives the rotating shaft to rotate. The connecting structure is connected to the second buffer roller. Rotation of the rotating shaft drives the connecting structure to move, thereby causing the second buffer roller to rise and fall. The feeding device feeds self-adhesive tape to the first buffer roller. The self-adhesive tape is wound sequentially around the first and second buffer rollers. The rising and falling of the second buffer roller causes a portion of the self-adhesive tape to rise and fall. The buffer device also includes a supporting structure, which is hinged to the first base frame and disposed between the feeding device and the first buffer roller. A portion of the self-adhesive tape is wound around the supporting structure. The film laminating device includes a first extrusion roller, a second extrusion roller, and a feeding roller. The first extrusion roller and the second extrusion roller are arranged in parallel. The first extrusion roller is connected to a first driving device that drives it to press against the second extrusion roller. The self-adhesive tape, after passing through the buffer device, is conveyed between the first extrusion roller and the second extrusion roller. There are two feeding rollers, which alternately supply film between the first extrusion roller and the second extrusion roller, and the self-adhesive tape and the film are laminated between the first extrusion roller and the second extrusion roller. The winding device includes a third base frame, a turntable, a winding rod, a cutting structure, a first clamping assembly, and a second clamping assembly. The turntable is rotatably mounted on the third base frame, and the winding rod is mounted on the turntable. The winding rod is used to wind up the self-adhesive tape after passing through the film bonding device. There are two winding rods, and the rotation of the turntable can drive the two winding rods to exchange positions. The winding rod has a winding position and a rewinding position. The winding rod in the winding position winds up the self-adhesive tape, and the two winding rods alternately wind up the tape. The cutting structure is used to cut the self-adhesive tape between the two winding rods after they exchange positions. The first clamping assembly is used to press the first end of the cut self-adhesive tape against the winding rod in the winding position, and the second clamping assembly is used to press the second end of the cut self-adhesive tape against the winding rod in the rewinding position. The supporting structure can send an action signal to the driving structure when the winding device performs a roll change action and the self-adhesive tape becomes loose, so as to drive the second buffer roller to lift and tighten the self-adhesive tape, thereby realizing continuous production without stopping the machine during the roll change process.

2. The automatic self-adhesive tape winding device according to claim 1, characterized in that: The load-bearing structure includes a support arm and a third buffer roller. The first end of the support arm is hinged to the first base frame, and the third buffer roller is installed at the second end of the support arm. An elastic element is connected between the second end of the support arm and the first base frame.

3. The automatic self-adhesive tape winding device according to claim 1, characterized in that: The film laminating device includes a second base frame and a limiting member. The second base frame is provided with a slot, and the feeding roller is movably installed in the slot. The limiting member is installed on the second base frame and extends partially into the slot. The limiting member is used to fix the position of the feeding roller.

4. The automatic self-adhesive tape winding device according to claim 1, characterized in that: The first clamping assembly includes a first driving member, a first clamping rod, and a first swing arm. The first end of the first swing arm is hinged to the third base frame, and the first clamping rod is mounted on the second end of the first swing arm. The first driving member is used to drive the first swing arm to rotate about the hinge point with the third base frame, so as to drive the first clamping rod to move toward the winding rod. The cutting structure is movably mounted on the first swing arm.

5. The automatic self-adhesive tape winding device according to claim 4, characterized in that: The first swing arm is equipped with a first slide rail, the length extension direction of the first slide rail is parallel to the length extension direction of the winding rod; the cutting structure is slidably mounted on the first slide rail; The first clamping assembly further includes a second clamping rod, which is installed at the second end of the first swing arm and is spaced apart from the first clamping rod. The cutting structure includes a cutting blade that extends between the first clamping rod and the second clamping rod.

6. The automatic self-adhesive tape winding device according to claim 1, characterized in that: The turntable is provided with a mounting rod, and a gear set is sleeved on the mounting rod; the two winding rods are a first winding rod and a second winding rod, the first winding rod is connected to a first driving device, and the second winding rod is connected to a second driving device. The first driving device is connected to the first winding rod through the gear set, and the second driving device is connected to the second winding rod through the gear set.

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