Die tearing mechanism and working method thereof

Abstract

The invention discloses a film tearing mechanism and a working method thereof, and belongs to the field of film production, the film tearing mechanism comprises a buckle type winding drum, the buckle type winding drum comprises a winding drum and a clamping strip which can be clamped, the film tearing mechanism further comprises a mounting groove rotationally formed in a film tearing position, a rotatable stripping rod is arranged on the mounting groove in a sliding mode, and a plurality of negative pressure suction cups are arranged on the stripping rod; the device further comprises a placing plate arranged in a sliding mode, the placing plate is used for placing a clamping strip, a clamping plate is arranged at one end of the placing plate in a sliding mode, the clamping plate is used for limiting the placing plate, a moving plate is arranged above the placing plate in a sliding mode, the winding tail end of the protective film is clamped by arranging a buckle type winding drum, and the winding tail end of the protective film is clamped on the winding drum through the clamping strip. And at the moment, the winding drum is pulled out of the winding shaft, and a new winding drum is replaced.

Description

Technical Field

[0001] This invention relates to the field of film production, and in particular to a film tearing mechanism and its working method. Background Technology

[0002] Double-sided laminated film is a type of film material with adhesive or bonding functions on both sides. Its core purpose is for bonding, protection, or functional replication between objects. Its double-sided adhesive design allows simultaneous bonding to two substrate surfaces, resulting in a strong and smooth finish. The substrates are often PET, PP, or PE films, combined with adhesive coatings such as acrylic or silicone, to suit various application needs. It combines protective properties such as scratch and water resistance with functional properties such as thermal conductivity, insulation, and light blocking. Some versions offer customizable thickness and bonding strength.

[0003] During the double-sided lamination film processing, the protective film needs to be removed from the film material. Conventional film tearing mechanisms usually have a paper roll for winding up the waste protective film. When the paper roll is wound up to its maximum capacity, the end of the roll needs to be manually taped to prevent the protective film from becoming loose and scattered after winding. However, the paper roll is usually located inside the equipment, making manual taping inconvenient. Summary of the Invention

[0004] This invention provides a tearing mechanism and its working method, which can solve the problem in the prior art that requires manual tape application to the winding end to avoid the protective film from becoming loose and scattered after winding.

[0005] A die-cutting mechanism includes a snap-on take-up drum, the snap-on take-up drum including an engageable take-up drum and a locking strip; It also includes a mounting groove that is rotatably set at the film tearing point, a rotatable peeling rod that is slidably mounted on the mounting groove, and a number of negative pressure suction cups on the peeling rod; It also includes a sliding placement plate for placing the card strip, a card plate for limiting the placement plate at one end, and a movable plate for sliding above the placement plate.

[0006] Furthermore, the film-tearing mechanism is provided in two places, and the two sets of film-tearing mechanisms have the same structure. The card strip is provided with a card block, and the winding drum is provided with a card groove. The card strip engages with the card groove through the card block. The winding drum is installed on the winding shaft. The first control console is fixedly provided with an installation platform. Several second springs are fixedly provided on the installation platform, and a placement plate is fixedly provided at the top of the several second springs.

[0007] Furthermore, a magnet is provided between the card strip and the placement plate to attract each other.

[0008] Furthermore, the film-tearing mechanism also includes a rotating component, a first telescopic cylinder fixedly mounted on the rotating component, an installation groove fixedly mounted on the rotating component, a connecting plate fixedly mounted on the output end of the first telescopic cylinder, and a third spring fixedly mounted on the connecting plate and the cylinder body of the first telescopic cylinder, the third spring being sleeved on the outside of the first telescopic cylinder.

[0009] Furthermore, a fifth gear is rotatably provided on the connecting plate, a peeling rod is coaxially and fixedly provided on the fifth gear, a plurality of negative pressure suction cups are provided on the peeling rod, and a fifth rack is also provided on one side of the mounting groove.

[0010] Furthermore, a second limiting rod is fixedly provided on the upper part of the housing, and the other end of the placement plate is slidably disposed on the second limiting rod. A movable plate is also fixedly provided at the top end of the second limiting rod, and a third rack is fixedly provided at one end of the movable plate. A fourth spring is fixedly provided between the movable plate and the housing. A cylindrical rod is also rotatably provided on the housing, and a third gear and a fourth gear are coaxially and fixedly provided on the cylindrical rod.

[0011] Furthermore, a sliding groove is provided on the housing below the cylindrical rod, a movable bracket is slidably mounted on the sliding groove, a clamping plate is fixed on the movable bracket, and a fourth rack is fixed at the bottom of the clamping plate, and the fourth rack meshes with the fourth gear for transmission.

[0012] Furthermore, the film-tearing mechanism also includes an ejection mechanism for ejecting the take-up drum. An end cap is provided between the take-up drum and the take-up shaft for fixing the take-up drum to the take-up shaft after installation. A spring plate is slidably provided at the other end of the take-up shaft. An end plate is fixedly provided on the spring plate. A fifth spring is fixedly provided on the end plate. The fifth spring is fixedly provided on the housing. A telescopic rod is also provided between the housing and the end plate.

[0013] Furthermore, a third pulley is coaxially and fixedly mounted on the take-up shaft, and a fourth pulley is rotatably mounted on the housing. The third pulley and the fourth pulley are connected by a second synchronous belt. The fourth pulley is driven by a motor to realize the rotation and winding of the take-up shaft.

[0014] A method for operating a die-tearing mechanism includes the following steps: S1: In the initial state, the clamping plate is located above one end of the placement plate and is in contact with the placement plate. The clamping plate limits the placement plate. As the take-up drum rotates, the protective film is gradually rolled up onto the take-up drum. S2: The thickness of the outer protective film of the take-up drum gradually increases, and the outer protective film of the take-up drum gradually comes into contact with the moving plate. As the thickness increases, it squeezes the moving plate downward. At this time, the fourth spring is gradually compressed. During the downward movement of the moving plate, the third rack gradually approaches the third gear and finally meshes with it to realize the rotation of the cylindrical rod. The fourth gear on the cylindrical rod rotates synchronously. The fourth gear meshes with the fourth rack to realize the lateral movement of the clamping plate. The clamping plate leaves the top of the placement plate. S2: When the placement plate loses the limit of the clamping plate, it moves upward under the action of the second spring, and the clamping strip placed on it moves upward synchronously until it finally engages with the take-up drum, thereby locking the end of the protective film take-up. The clamping strip locks the end of the protective film take-up onto the take-up drum.

[0015] Beneficial effects

[0016] 1. In the initial state, the film-tearing mechanism of the present invention has a clamping plate located above one end of the placement plate, which limits the placement plate. As the take-up drum rotates, the protective film is gradually rolled onto the take-up drum, and the thickness of the protective film on the take-up drum gradually increases. The protective film on the take-up drum gradually contacts the moving plate and, as the thickness increases, it presses the moving plate downward. At this time, the fourth spring is gradually compressed, the cylindrical rod rotates, and the cylindrical rod drives the fourth gear on it to rotate synchronously. The fourth gear meshes with the fourth rack, realizing the lateral movement of the clamping plate. The clamping plate leaves the top of the placement plate, and the placement plate, no longer limited by the clamping plate, moves upward under the action of the second spring. The clamping strip placed on it moves upward synchronously until it finally engages with the take-up drum, thus locking the end of the protective film roll. The clamping strip locks the end of the protective film roll onto the take-up drum, eliminating the need for manual pasting or fixing of the roll end. At this point, the take-up drum can be pulled out from the take-up shaft and replaced with a new take-up drum.

[0017] 2. Since the winding drum is located inside the equipment during use and is far from being manually removed, this invention also includes a pop-out mechanism for ejecting the winding drum. When the winding drum is installed on the winding shaft, the winding drum will compress the spring plate. After winding is completed, the end cover is removed, and the fifth spring ejects the winding drum through the spring plate for easy removal. Attached Figure Description

[0018] Figure 1 This is a front view of the double-sided lamination film production equipment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the double-sided lamination film production equipment of the present invention; Figure 3 This is a schematic diagram of the adhesive coating device of the present invention; Figure 4 This is a front view of the adhesive application device of the present invention; Figure 5 This is a schematic diagram of part of the adhesive application device of the present invention. Figure I ; Figure 6 This is a partial structural diagram of the present invention. Figure II ; Figure 7 This is a partial structural diagram of the present invention. Figure III ; Figure 8 This is a front view of the film-tearing mechanism of the present invention; Figure 9 This is a schematic diagram of the film-tearing mechanism of the present invention. Figure I ; Figure 10 This is an enlarged schematic diagram of part A of the present invention; Figure 11 This is a schematic diagram of the film-tearing mechanism of the present invention. Figure I ; Figure 12 This is an enlarged schematic diagram of part B of the present invention; Figure 13 This is an enlarged schematic diagram of part C of the present invention; Figure 14 This is a side view of the film-tearing mechanism of the present invention; Figure 15 This is an enlarged schematic diagram of part D of the present invention; Figure 16 This is a schematic diagram of the spring plate installation of the present invention; Figure 17 This is a front view of the auxiliary bonding mechanism of the present invention; Figure 18 This is an enlarged schematic diagram of part E of the present invention; Figure 19 This is an enlarged schematic diagram of part F of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100. Processing mechanism; 200. Film peeling mechanism; 300. Glue application device; 400. Auxiliary bonding mechanism; 101. Housing; 102. First feeding mechanism; 103. Second feeding mechanism; 104. Third feeding mechanism; 105. Winding mechanism; 106. First working position; 107. Second control console; 108. First control console; 109. Second working position; 110. Third control console; 111. UV curing area; 112. Guide roller; 113. First bonding roll material; 114. Base film; 115. Second bonding film material; 116. First composite film; 117. Second composite film; 201. Winding shaft; 2 02. Rewind drum; 203. Slot; 204. Second spring; 205. Locking bar; 206. Placement plate; 207. Rotating component; 208. First telescopic cylinder; 209. Mounting slot; 210. Peeling rod; 211. Negative pressure suction cup; 212. Connecting plate; 213. Fifth gear; 214. Fifth rack; 215. Third spring; 216. Output end; 217. Moving plate; 218. Second limit rod; 219. Fourth spring; 220. Third rack; 221. Slide groove; 222. Moving bracket; 223. Fourth rack; 224. Locking plate; 225. Third gear; 226. Cylindrical rod; 227. 228. Fourth gear; 229. Spring plate; 230. End plate; 231. Fifth spring; 232. Fourth pulley; 233. Second synchronous belt; 234. Telescopic rod; 305. Glue tank; 306. Glue application baffle; 307. Glue holding area; 308. Inclined platform; 309. Partition plate; 300. Sliding area; 301. Arc-shaped insert plate; 302. Connecting rod; 303. Arc-shaped rack; 314. First gear; 315. Roller body; 316. Intermediate shaft; 317. Rectangular back plate; 318. First limiting hole; 319. Slide rod; 310. Slide plate; 311. First limiting rod; 312. Second rack; 313. Second... Gear; 320, Second mounting plate; 321, Second limiting hole; 322, Second pulley; 323, First synchronous belt; 324, First pulley; 325, First mounting plate; 326, Pressure plate; 327, Cylindrical shaft; 328, First spring; 329, Insertion hole; 330, Third mounting plate; 331, Insert rod; 401, First bonding roller; 402, Second bonding roller; 403, Mounting component; 404, Bidirectional telescopic cylinder; 405, Extension rod; 406, First pressing roller; 407, Second telescopic cylinder; 408, Connector; 409, Second pressing roller; 410, Third bonding roller; 411, Fourth bonding roller. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown in the figure, the present invention provides a film-tearing mechanism and its working method, including a processing mechanism 100. The processing mechanism 100 is provided with a film-tearing mechanism 200, an adhesive applicator 300 and an auxiliary bonding mechanism 400. The processing mechanism 100 is used for the production of double-sided bonded films. The film-tearing mechanism 200 in the present invention is provided with two sets, which are respectively used to tear the two sets of bonded film materials. The adhesive applicator 300 is provided with two sets, which are used to apply adhesive to the film materials to facilitate the bonding between the two film materials.

[0022] like Figure 2 As shown, the processing mechanism 100 includes a housing 101, three sets of feeding mechanisms, and one set of winding mechanism 105. The feeding mechanism includes a first feeding mechanism 102, a second feeding mechanism 103, and a third feeding mechanism 104, which are rotatably arranged. The first feeding mechanism 102 and the second feeding mechanism 103 are located at the same end of the housing 101, with the first feeding mechanism 102 located above the second feeding mechanism 103. The winding mechanism 105 and the third feeding mechanism 104 are located at the other end of the housing 101, with the third feeding mechanism 104 located above the winding mechanism 105. Three sets of laminating films are wound onto the first feeding mechanism 102, the second feeding mechanism 103, and the third feeding mechanism 104, respectively. The three sets of laminating films are laminated together to form a double-sided laminating film. The winding mechanism 105 is used to wind up the double-sided laminating film. Several guide rollers 112 are rotatably arranged on the housing 101, which realize the movement of the three sets of films and the movement of the double-sided laminating film. The working method of a tear-off mechanism is as follows: Combination Figure 1 and Figure 2As shown, in use, the first unloading mechanism 102 and the second unloading mechanism 103 respectively wind up the first bonding roll 113 and the base film 114, and the third unloading mechanism 104 winds up the second bonding film 115. The first bonding roll 113 and the base film 114 are guided by the corresponding guide rollers 112 and are first bonded at the first glue application device 300 and the auxiliary bonding mechanism 400. Before bonding, the first bonding roll 113 has its protective film removed at the first film tearing mechanism 200. After the protective film is removed, it is guided by the guide rollers 112 to the first glue application device 300 and the auxiliary bonding mechanism 400 for bonding. After bonding, the first composite film 116 is formed. The first composite film 116 is then guided by the guide roller 112 into the second adhesive coating device 300 and the auxiliary bonding mechanism 400. The third feeding mechanism 104 has a second bonding film 115 wound up. The third feeding mechanism 104 is equipped with a second film tearing mechanism 200 for tearing off the protective film on the second bonding film 115. The second bonding film 115 is guided by the guide roller 112 into the auxiliary bonding mechanism 400, realizing the bonding of the first composite film 116 and the second bonding film 115, resulting in a second composite film 117. The second composite film 117 is finally guided by the guide roller 112 to the winding mechanism 105 for final finished product winding.

[0023] The housing 101 is equipped with several control consoles, including a first control console 108, a second control console 107, a third control console 110, and a photocuring area 111. The first control console 108, the second control console 107, and the third control console 110 are equipped with control mechanisms to control the operation of the processing mechanism 100. A first manual position 106 and a second manual position 109 are respectively provided in front of the two bonding positions. The first manual position 106 and the second manual position 109 are used for manual operation to facilitate better film bonding. The photocuring area 111 is used for concentrated photocuring after the double-layer film is bonded.

[0024] In actual operation, a glue applicator 300 is usually used to apply glue to the surface of the film material. The glue applicator 300 is usually equipped with a rotatable glue applicator roller. The glue applicator roller and the glue tank 301 are usually designed as one unit. However, after long-term use, a large amount of residual glue will accumulate on the surface of the glue applicator roller, which is not easy to clean and needs to be removed. The removal process is quite cumbersome. Therefore, this embodiment proposes a glue applicator roller that is easy to disassemble, so as to facilitate the regular replacement or cleaning of the glue applicator roller.

[0025] Specifically, such as Figure 3 and Figure 4As shown, the adhesive application device 300 in this embodiment has two sets, located at the two film bonding points respectively. In use, the adhesive application device 300 first applies adhesive to the film material, and then the auxiliary bonding mechanism 400 assists in bonding the two film materials. The two sets of adhesive application devices 300 have the same structure. This embodiment takes one set of adhesive application devices 300 as an example. The specific adhesive application device 300 includes an adhesive tank 301. The top of the adhesive tank 301 has several adhesive inlets, and the bottom of the adhesive tank 301 is fixedly provided with an adhesive application baffle 302. One side of the adhesive application baffle 302 has an adhesive receiving area 303, and the bottom of the adhesive receiving area 303 has a ramp 304. The adhesive inlets are connected to an adhesive pipe, and the adhesive is injected into the adhesive tank 301 through the adhesive pipe, then into the adhesive receiving area 303, and finally collected at the outlet by the ramp 304. One side of the adhesive receiving area 303 is a partition plate 305. The partition plate 305 is... A side plate of the glue-holding area 303 and a partition plate 305 divide the interior of the glue-applying baffle 302 into two areas: one for storing glue and the other for installing the glue-applying roller. A glue outlet is located below the partition plate 305, and a sliding area 306 is fixedly provided at the bottom of the partition plate 305. An arc-shaped insert plate 307 slides along the sliding area 306, sealing the glue outlet during its sliding motion. When the arc-shaped insert plate 307 slides downwards along the sliding area 306, it seals the glue outlet. When the arc-shaped insert plate 307 slides in the opposite direction, the glue outlet opens, and the glue flows out along the outlet. A glue-applying roller is also rotatably mounted on the glue-applying baffle 302. The plate at the bottom of the glue outlet is in contact with the glue-applying roller. Glue gathers downwards along the inclined platform 304 and contacts the glue-applying roller along the glue outlet, thus applying glue to the roller. With the rotation of the glue-applying roller and the movement of the film material, the film material is glued.

[0026] This embodiment provides a sliding method for the arc-shaped insert 307, such as... Figure 3 and Figure 4 As shown, the other end of the arc-shaped insert 307 is slidably fitted with the glue-applying baffle 302, and the arc-shaped insert 307 is also provided with an arc-shaped rack 309. A connecting rod 308 is rotatably mounted on the glue-applying baffle 302. One end of the connecting rod 308 is coaxially and fixedly equipped with a first gear 310. The first gear 310 meshes with the arc-shaped rack 309 for transmission. When the first gear 310 rotates, it meshes with the arc-shaped rack 309, realizing the sliding of the arc-shaped insert 307, further enabling the opening and sealing of the glue outlet. Figure 5 As shown, the other end of the connecting rod 308 is coaxially and fixedly equipped with a first pulley 324, as... Figure 6As shown, a second gear 319 is fixedly installed on the connecting rod 308 between the first pulley 324 and the first gear 310. The second gear 319 is coaxial with and fixedly connected to the connecting rod 308. Several sliding rods 315 are also fixedly installed on one side of the glue-applying baffle 302. A sliding plate 316 is slidably mounted on the sliding rods 315. Two sets of first limit rods 317 are fixedly mounted on the sliding plate 316. A second rack 318 is also fixedly mounted on the sliding plate 316. The second rack 318 meshes with the second gear 319 for transmission. In use, the glue-applying baffle... A drive source is provided at the rotatable connection between 302 and connecting rod 308. The drive source can realize the rotation of connecting rod 308, which in turn drives the first gear 310, the second gear 319 and the first pulley 324 to rotate synchronously. The first gear 310 meshes with the arc-shaped rack 309 to realize the sliding of the arc-shaped rack 309, thereby realizing the opening and closing of the glue outlet. The second gear 319 meshes with the second rack 318 to realize the up and down movement of the second rack 318. The two sets of first limit rods 317 move up and down to realize locking and pulling out.

[0027] like Figure 5 As shown, a first mounting plate 325 is fixedly mounted on one end of the adhesive application baffle 302. The end of the connecting rod 308 is rotatably engaged with the first mounting plate 325. A second mounting plate 320 is also fixedly mounted on the first mounting plate 325. The second mounting plate 320 is L-shaped and has two second limiting holes 321. The two second limiting holes 321 correspond vertically to the two first limiting rods 317. A second pulley 322 is rotatably mounted on the second mounting plate 320. The first pulley 324 and the second pulley 322 are connected by a first synchronous belt 323. Figure 6 As shown, a cylindrical shaft 327 is slidably mounted on the second mounting plate 320. One end of the cylindrical shaft 327 passes through the second mounting plate 320 and is fixedly connected to a pressure plate 326. A circular hole is provided in the middle of the second pulley 322, and the cylindrical shaft 327 passes through the circular hole in the middle of the second pulley 322, so that there is no interference between the rotation of the second pulley 322 and the sliding of the cylindrical shaft 327. Several insertion holes 329 are distributed circumferentially on the pressure plate 326, such as... Figure 7 As shown, a third mounting plate 330 is provided on the second mounting plate 320 opposite to the pressure plate 326. The third mounting plate 330 is coaxial with and fixedly connected to the second pulley 322. Several insert rods 331 are distributed circumferentially on the third mounting plate 330. A first spring 328 is provided between the pressure plate 326 and the third mounting plate 330. The first spring 328 is sleeved on the outside of the cylindrical shaft 327. Figure 3 , Figure 5 and Figure 6 As shown, the coating roller includes an intermediate shaft 312, and a roller body 311 is coaxially and fixedly mounted on the outside of the intermediate shaft 312. A rectangular back plate 313 is provided on the roller body 311 near the pressure plate 326. The rectangular back plate 313 is rotatably engaged with the intermediate shaft 312, and two first limiting holes 314 are provided on the rectangular back plate 313.

[0028] The method of using an adhesive applicator is as follows: In use, the glue-applying roller is inserted laterally into the glue-applying device 300 until the intermediate shaft 312 at one end of the glue-applying roller contacts the pressure plate 326, and the pressure plate 326 is continuously squeezed. During the squeezing process, the cylindrical shaft 327 moves laterally, the first spring 328 is compressed, and the pressure plate 326 gradually approaches the third mounting plate 330 until several insertion rods 331 are inserted into several insertion holes 329. At this time, the first limiting hole 314 on the rectangular back plate 313 is located directly below the first limiting rod 317. Figure 4 and Figure 5 As shown, rotating the connecting rod 308 causes the first gear 310, the second gear 319, and the first pulley 324 to rotate synchronously. The first gear 310 meshes with the arc-shaped rack 309, enabling the arc-shaped rack 309 to slide and open the dispensing port. The second gear 319 meshes with the second rack 318, causing the second rack 318 to move downwards. The two sets of first limiting rods 317 move downwards accordingly, inserting into the first limiting hole 314. The end of the first limiting rod 317 is located in the second limiting hole 321. An electromagnet attracts the end of the first limiting rod 317 and the second limiting hole 321. When the end of the first limiting rod 317 moves to the second limiting hole... The electromagnet inside hole 321 is activated, further limiting the second limiting hole 321. At this time, the entire coating roller is fixed on the second mounting plate 320. The first pulley 324 drives the second pulley 322 to rotate synchronously. The second pulley 322 is coaxial with and fixedly connected to the third mounting plate 330, that is, the third mounting plate 330 rotates coaxially. The third mounting plate 330 is fixedly connected to the pressure plate 326 through the insertion rod 331. The pressure plate 326 rotates synchronously. Under the action of the first spring 328, the pressure plate 326 is tightly attached to the intermediate shaft 312, that is, the pressure plate 326 can drive the intermediate shaft 312 to rotate, and finally realize the rotation of the roller body 311. During the rotation of the roller body 311, it comes into contact with the glue and achieves coating.

[0029] After coating is completed, the other end of the intermediate shaft 312 is manually removed, and the connecting rod 308 is rotated in the opposite direction. The arc-shaped rack 309 slides in the opposite direction to close the glue outlet. At the same time, the electromagnetic poles reverse, separating the first limiting rod 317 from the second limiting hole 321. As the first limiting rod 317 moves upward, it separates from the rectangular back plate 313. The coating roller loses its limit and can be freely removed. At this time, the pressure plate 326 is reset under the action of the first spring 328, which facilitates the removal and replacement of the coating roller.

[0030] In this embodiment, the bottom of the glue tank 301 is connected to the glue-holding area 303, and the glue-holding area 303 is in a sealed state except for the glue outlet (some of the boards in the figure are not shown).

[0031] The gluing device 300 also includes a gluing platform set on the second control console 107 and the third control console 110. The gluing device 300 is installed above the gluing platform and can be used to apply glue to the roll material. The gluing is pre-dried by the drying mechanism and then the auxiliary bonding mechanism 400 is used for auxiliary bonding to avoid the glue from overflowing from the edge in large quantities when the glue is not dry.

[0032] This embodiment also includes a film-tearing mechanism 200 for tearing off the protective film from the roll. Conventional film-tearing mechanisms 200 typically have a take-up paper tube for winding up waste protective film. When the take-up paper tube is wound to its maximum capacity, it is necessary to manually attach tape to the end of the roll to prevent the protective film from becoming loose and scattered after winding. However, the take-up paper tube is usually located inside the equipment, and manual attachment is inconvenient. Therefore, this embodiment proposes a snap-on take-up tube. When the roll reaches a certain thickness, the snap automatically engages with the take-up tube 202, fixing the wound protective film onto the take-up tube 202 through the snap, thus achieving fixation of the end of the roll without manual attachment.

[0033] like Figure 8 As shown, the film-tearing mechanism 200 in this embodiment has two locations for tearing the film from the two sets of laminated films. The two sets of film-tearing mechanisms 200 have the same structure. Taking one set of film-tearing mechanisms 200 as an example, as follows... Figure 10 As shown, the snap-on take-up drum includes a take-up drum 202 and a locking strip 205. The locking strip 205 is provided with a locking block, and the take-up drum 202 is provided with a locking groove 203. The locking strip 205 engages with the locking block and the locking groove 203 to fix the end of the protective film on the take-up drum 202. The take-up drum 202 is mounted on the take-up shaft 201, as shown. Figure 8 and Figure 9 and Figure 10 As shown, a mounting platform is fixedly provided on the first control console 108, and a plurality of second springs 204 are fixedly provided on the mounting platform. A placement plate 206 is fixedly provided on the top of the plurality of second springs 204. A magnet is provided between the clip 205 and the placement plate 206 to attract each other. The clip 205 is fixed at a designated position on the placement plate 206 by the magnet. In the initial state, the second springs 204 are in a compressed state.

[0034] like Figure 11 As shown, the film-tearing mechanism 200 also includes a rotatable rotating component 207, on which a first telescopic cylinder 208 is fixedly mounted, and on which an mounting groove 209 is fixedly mounted, as shown. Figure 12As shown, a connecting plate 212 is fixedly provided on the output end 216 of the first telescopic cylinder 208. A third spring 215 is fixedly provided on the connecting plate 212 and the cylinder body of the first telescopic cylinder 208. The third spring 215 is sleeved on the outside of the first telescopic cylinder 208. A fifth gear 213 is rotatably provided on the connecting plate 212. A peeling rod 210 is coaxially and fixedly provided on the fifth gear 213. Several negative pressure suction cups 211 are provided on the peeling rod 210. A fifth rack 214 is also provided on one side of the mounting groove 209. Figure 8 As shown, in the initial state, by rotating the rotating component 207, the negative pressure suction cup 211 is adhered to the roll protective film, and the roll protective film is peeled off from the roll by negative pressure suction. After peeling, the rotating component 207 is driven to rotate, and the peeled protective film is rotated to the winding position. Since the position of the negative pressure suction cup 211 on the peeling rod 210 changes when it rotates to the winding drum 202, even if the first telescopic cylinder 208 is controlled to extend or retract, the negative pressure suction cup 211 cannot drive the protective film to adhere to the surface of the winding drum 202. Therefore, this embodiment adds a fifth gear 2. During the retraction of the first telescopic cylinder 208, the fifth gear 213 and the fifth rack 214 will mesh and rotate, thereby adjusting the position of the negative pressure suction cup 211 so that the negative pressure suction cup 211 is facing the take-up drum 202. As the first telescopic cylinder 208 continues to retract, the negative pressure suction cup 211 gradually moves closer to the take-up drum 202, so that the protective film comes into contact with the take-up drum 202. The surface of the take-up drum 202 is provided with adhesive, which can directly adhere the beginning end of the protective film to the take-up drum 202. Then the negative pressure suction cup 211 releases the protective film and returns, and the take-up drum 202 rotates and rewinds.

[0035] Combination Figure 11 and 13 As shown, a second limiting rod 218 is fixedly provided on the upper part of the housing 101, and the other end of the placement plate 206 is slidably disposed on the second limiting rod 218, as shown. Figure 14 and 15 As shown, a movable plate 217 is fixedly provided at the top of the second limiting rod 218. A third rack 220 is fixedly provided at one end of the movable plate 217. A fourth spring 219 is fixedly provided between the movable plate 217 and the housing 101. A cylindrical rod 226 is rotatably provided on the housing 101. A third gear 225 and a fourth gear 227 are coaxially and fixedly provided on the cylindrical rod 226. A sliding groove 221 is provided on the housing 101 below the cylindrical rod 226. A movable bracket 222 is slidably provided on the sliding groove 221. A clamping plate 224 is fixedly provided on the movable bracket 222. A fourth rack 223 is fixedly provided at the bottom of the clamping plate 224. The fourth rack 223 and the fourth gear 227 mesh and transmit power.

[0036] The working method of a die-tearing mechanism is as follows: like Figure 13As shown, in the initial state, the clamping plate 224 is located above one end of the placement plate 206 and is in contact with the placement plate 206. The clamping plate 224 limits the placement plate 206. At this time, the second spring 204 connected to the placement plate 206 is in a compressed state. As the take-up drum 202 rotates, the protective film is gradually wound onto the take-up drum 202, and the thickness of the protective film on the outer side of the take-up drum 202 gradually increases, as... Figure 15 As shown, the outer protective film of the take-up drum 202 gradually comes into contact with the moving plate 217, and as the thickness increases, it presses the moving plate 217 downward. At this time, the fourth spring 219 is gradually compressed, as... Figure 13 As shown, during the downward movement of the moving plate 217, the third rack 220 gradually approaches the third gear 225 and eventually meshes with it, thus rotating the cylindrical rod 226. The fourth gear 227 on the cylindrical rod 226 rotates synchronously, and the fourth gear 227 meshes with the fourth rack 223, thus moving the clamping plate 224 laterally. The clamping plate 224 moves away from the top of the placement plate 206, and the placement plate 206, no longer limited by the clamping plate 224, moves upward under the action of the second spring 204. The clamping strip 205 placed on it moves upward synchronously until it finally engages with the take-up drum 202, thus locking the end of the protective film. The clamping strip 205 locks the end of the protective film onto the take-up drum 202, eliminating the need for manual pasting or fixing of the end. At this point, the take-up drum 202 can be pulled out from the take-up shaft 201 and replaced with a new take-up drum 202.

[0037] like Figure 16 As shown, since the take-up drum 202 is located inside the equipment during use, and the manual removal position is far away, this embodiment also provides a pop-out mechanism for popping out the take-up drum 202. Specifically, an end cap is provided between the take-up drum 202 and the take-up shaft 201 to fix the take-up drum 202 onto the take-up shaft 201 after installation. A spring plate 228 is slidably provided at the other end of the take-up shaft 201. An end plate 229 is fixedly provided on the spring plate 228, and a fifth spring 230 is fixedly provided on the end plate 229. The fifth spring 230 is fixedly provided on the housing 101. The housing 101 and the end plate 229 are connected to the end plate 229. A telescopic rod 233 is also provided between the plates 229. When the take-up drum 202 is installed on the take-up shaft 201, the take-up drum 202 will compress the spring plate 228. After the winding is finished, the end cover is removed, and the fifth spring 230 ejects the take-up drum 202 through the spring plate 228 for easy removal. A third pulley is coaxially and fixedly provided on the take-up shaft 201, and a fourth pulley 231 is rotatably provided on the housing 101. The third pulley and the fourth pulley 231 are connected by a second synchronous belt 232. The fourth pulley 231 is driven by a motor to realize the rotation and winding of the take-up shaft 201.

[0038] like Figure 17 and Figure 18As shown, there are two auxiliary bonding mechanisms 400 in this embodiment, and the two mechanisms have different structures. The specific structure of the auxiliary bonding mechanism 400 at the first bonding of the roll material is as follows: a first bonding roller 401 and a second bonding roller 402 are rotatably mounted on the second control console 107. The first bonding roll material 113 and the bottom film 114 are positioned corresponding to each other through the first bonding roller 401 and the second bonding roller 402. A mounting component 403 is fixedly mounted on the second control console 107. A bidirectional telescopic cylinder 404 is fixedly mounted on the mounting component 403. Extension rods 405 are fixedly connected to the output ends on both sides of the bidirectional telescopic cylinder 404. A first pressing roller 406 is fixedly mounted on the extension rod 405. In use, the distance between the two first pressing rollers 406 is changed by the extension and retraction of the bidirectional telescopic cylinder 404, and finally the bonding of the first bonding roll material 113 and the bottom film 114 is achieved.

[0039] like Figure 17 and Figure 19 As shown, the auxiliary bonding mechanism 400 at the second bonding point of the roll material has the following specific structure: a second telescopic cylinder 407 is fixedly provided on the third control console 110, a connector 408 is fixedly provided at the output end of the second telescopic cylinder 407, a second pressing roller 409 is fixedly provided on the connector 408, a third bonding roller 410 and a fourth bonding roller 411 are also rotatably provided on the third control console 110, the third bonding roller 410 and the fourth bonding roller 411 are respectively used to guide the first composite film 116 and the second bonding film 115. In use, the first composite film 116 and the second bonding film 115 are pressed together by moving the second bonding film 115 laterally to obtain the second composite film 117.

[0040] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A tearing mechanism, characterized in that, Includes a snap-on take-up drum, which includes a snap-on take-up drum (202) and a locking strip (205). It also includes a mounting groove (209) that is rotatably set at the film tearing point, a rotatable peeling rod (210) that is slidably provided on the mounting groove (209), and a number of negative pressure suction cups (211) provided on the peeling rod (210). It also includes a sliding placement plate (206) for placing a card strip (205), a card plate (224) for sliding at one end of the placement plate (206) for limiting the placement plate (206), and a movable plate (217) for sliding above the placement plate (206).

2. The tearing mechanism as described in claim 1, characterized in that, The film-tearing mechanism (200) is provided in two places. The two sets of film-tearing mechanisms (200) have the same structure. The card strip (205) is provided with a card block, and the take-up drum (202) is provided with a card groove (203). The card strip (205) is engaged with the card groove (203) through the card block. The take-up drum (202) is installed on the take-up shaft (201). The first control console (108) is fixedly provided with an installation platform. Several second springs (204) are fixedly provided on the installation platform. The top of the several second springs (204) is fixedly provided with a placement plate (206).

3. A tearing mechanism as described in claim 2, characterized in that, The card strip (205) and the placement plate (206) are provided with magnets that attract each other.

4. A tearing mechanism as described in claim 3, characterized in that, The film-tearing mechanism (200) further includes a rotating component (207) that is rotatably provided. A first telescopic cylinder (208) is fixedly provided on the rotating component (207). An installation groove (209) is fixedly provided on the rotating component (207). A connecting plate (212) is fixedly provided on the output end (216) of the first telescopic cylinder (208). A third spring (215) is fixedly provided on the connecting plate (212) and the cylinder body of the first telescopic cylinder (208). The third spring (215) is sleeved on the outside of the first telescopic cylinder (208).

5. A tearing mechanism as described in claim 4, characterized in that, The connecting plate (212) is rotatably provided with a fifth gear (213), and a peeling rod (210) is coaxially and fixedly provided on the fifth gear (213). The peeling rod (210) is provided with several negative pressure suction cups (211), and a fifth rack (214) is also provided on one side of the mounting groove (209).

6. A tearing mechanism as described in claim 5, characterized in that, The housing (101) is fixedly provided with a second limiting rod (218), and the other end of the placement plate (206) is slidably disposed on the second limiting rod (218). The top end of the second limiting rod (218) is also fixedly provided with a moving plate (217), one end of the moving plate (217) is fixedly provided with a third rack (220), and a fourth spring (219) is fixedly provided between the moving plate (217) and the housing (101). A cylindrical rod (226) is also rotatably provided on the housing (101), and a third gear (225) and a fourth gear (227) are coaxially and fixedly provided on the cylindrical rod (226).

7. A tearing mechanism as described in claim 6, characterized in that, The housing (101) has a sliding groove (221) below the cylindrical rod (226). A movable bracket (222) is slidably mounted on the sliding groove (221). A clamping plate (224) is fixedly mounted on the movable bracket (222). A fourth rack (223) is fixedly mounted at the bottom of the clamping plate (224). The fourth rack (223) meshes with the fourth gear (227) for transmission.

8. A tearing mechanism as described in claim 7, characterized in that, The film-tearing mechanism (200) also includes an ejection mechanism for ejecting the take-up drum (202). An end cap is provided between the take-up drum (202) and the take-up shaft (201) for fixing the take-up drum (202) onto the take-up shaft (201) after installation. A spring plate (228) is slidably provided at the other end of the take-up shaft (201). An end plate (229) is fixedly provided on the spring plate (228). A fifth spring (230) is fixedly provided on the end plate (229). The fifth spring (230) is fixedly provided on the housing (101). A telescopic rod (233) is also provided between the housing (101) and the end plate (229).

9. A tearing mechanism as described in claim 8, characterized in that, The take-up shaft (201) is coaxially and fixedly provided with a third pulley, and the housing (101) is rotatably provided with a fourth pulley (231). The third pulley and the fourth pulley (231) are connected by a second synchronous belt (232). The fourth pulley (231) is driven by a motor to realize the rotation and winding of the take-up shaft (201).

10. A method for operating a die-tearing mechanism, applied to a die-tearing mechanism according to any one of claims 9, characterized in that, Includes the following steps: S1: In the initial state, the clamping plate (224) is located above one end of the placement plate (206) and is attached to the placement plate (206). The clamping plate (224) limits the placement plate (206). As the winding drum (202) rotates, the protective film is gradually wound onto the winding drum (202). S2: The thickness of the outer protective film of the take-up drum (202) gradually increases, and the outer protective film of the take-up drum (202) gradually contacts the moving plate (217). As the thickness increases, it squeezes the moving plate (217) downward. At this time, the fourth spring (219) is gradually compressed. During the downward movement of the moving plate (217), the third rack (220) gradually approaches the third gear (225) and finally meshes with it to achieve the rotation of the cylindrical rod (226). The fourth gear (227) on the cylindrical rod (226) rotates synchronously. The fourth gear (227) meshes with the fourth rack (223) to achieve the lateral movement of the clamping plate (224). The clamping plate (224) leaves the top of the placement plate (206). S3: The placement plate (206) loses the limit of the clamping plate (224) and moves upward under the action of the second spring (204). The clamping strip (205) placed on it moves upward synchronously until it finally engages with the winding drum (202), thereby locking the end of the protective film winding. The clamping strip (205) locks the end of the protective film winding onto the winding drum (202).

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