A plastic label film laminating device

Abstract

The present invention relates to the technical field of label laminating, and specifically relates to a plastic label film laminating device, which includes a conveyor belt and a mounting bracket arranged on the conveyor belt. A telescopic cylinder is fixedly connected to the mounting bracket, and further includes: a support frame arranged on the extending end of the telescopic cylinder, and an extrusion roller is arranged on the support frame. Starting the telescopic cylinder drives the support frame to move, so that the extrusion roller extends to fold the label; a guide rod is arranged on the support frame, and the extrusion roller is slidably connected to the guide rod; when starting the telescopic cylinder, during the process of driving the extrusion roller to extend and fold the label, a linkage component is used to drive the extrusion roller to move along with the label, thereby avoiding friction between the two in the moving direction of the conveyor belt, so as to ensure perfect label lamination; at the same time, after the extrusion roller folds and laminates the label, a flipping component is used to drive the extrusion roller to disengage from the label, so as to avoid causing additional friction or damage to the label when the extrusion roller resets.

Description

Technical Field

[0001] The present invention relates to the technical field of label laminating, and specifically to a plastic label film laminating device. Background Art

[0002] Plastic label films are usually made of plastic, which generally have higher water resistance, tear resistance and durability than paper labels. Therefore, plastic label films are used in some packaging seals. Specifically, when laminating labels, it is divided into two steps. First, half of the label is laminated onto one side of the packaging, and then the other half of the label is folded and laminated onto the other side of the packaging. However, when the existing laminating device performs the second step, as shown in the attached Figure 1 When using the pressing roller to fold and laminate the label, since the packaging moves along with the conveyor belt, a friction force in the moving direction of the conveyor belt will be generated between the label and the pressing roller. Therefore, when the conveyor belt moves relatively fast, this friction force may cause wrinkles on the label, affecting the aesthetics of label lamination. For this reason, we propose a plastic label film laminating device. Summary of the Invention

[0003] One technical problem to be solved by the present application is: how to design a solution to the problem of label wrinkles that may be caused by the existing laminating device when packaging moves at high speed.

[0004] To solve the above technical problem, the embodiment of the present application provides a plastic label film laminating device, including a conveyor belt and a mounting bracket arranged on the conveyor belt. A telescopic cylinder is fixedly connected to the mounting bracket, and further includes:

[0005] A support frame is arranged on the extended end of the telescopic cylinder, and a pressing roller is arranged on the support frame. Starting the telescopic cylinder drives the support frame to move, so that the pressing roller extends to fold the label;

[0006] A guide rod is arranged on the support frame, and the pressing roller is slidably connected to the guide rod;

[0007] A linkage assembly is arranged on the support frame, and the pressing roller is connected to the telescopic cylinder through the linkage assembly. The pressing roller follows the extension of the telescopic cylinder, and at the same time, the linkage assembly is used to drive the pressing roller to slide along the guide rod, so that the pressing roller follows the movement of the label.

[0008] In some embodiments, an installation plate is fixedly connected to the extended end of the telescopic cylinder, and the support frame is connected to the installation plate;

[0009] The linkage assembly includes a hollow shaft I sleeved on the guide rod. The extrusion roller is rotatably connected to the hollow shaft I. An installation bracket is arranged on the mounting plate. One end of the support frame is fixedly connected with a rotating cylinder. The installation bracket is connected to the rotating cylinder. A sliding ring is slidably connected to the rotating cylinder. A connecting piece is arranged between the sliding ring and the hollow shaft I. A first return spring is sleeved on the rotating cylinder. Two ends of the first return spring respectively contact and abut against the installation bracket and the sliding ring. Moving the sliding ring drives the extrusion roller to slide along the guide rod. At the same time, the first return spring is stressed and contracted to provide self-return ability for it.

[0010] A transmission part is arranged on the installation bracket. Two ends of the transmission part are respectively connected with the telescopic cylinder and the sliding ring. Starting the telescopic cylinder drives the sliding ring to move by means of the transmission part.

[0011] In some embodiments, the transmission part includes a guide wheel rotatably connected to the installation bracket. A pull rope is arranged on the installation bracket. One end of the pull rope is connected with the sliding ring, and the other end bypasses the guide wheel and is connected with the fixed end of the telescopic cylinder.

[0012] In some embodiments, a hollow shaft II is fixedly connected to the installation bracket. The rotating cylinder passes through the hollow shaft II and is rotatably connected to it. A flipping assembly is arranged on the installation bracket. The flipping assembly is connected with the rotating cylinder. After moving the extrusion roller to fold the label, the rotating cylinder is driven to rotate by means of the flipping assembly to drive the extrusion roller away from the label, so that the extrusion roller does not contact the label during the reset process.

[0013] In some embodiments, the flipping assembly includes a torsion spring sleeved on the rotating cylinder. Two ends of the torsion spring are respectively fixed to the hollow shaft II and the support frame. A round rod is slidably connected in the sliding ring. A guide groove part is arranged on the rotating cylinder. One end of the round rod is located in the guide groove part. A sliding groove III is arranged on the installation bracket. A hollow column is fixedly connected to the sliding ring. One end of the hollow column slidably passes through the sliding groove III. One end of the round rod is located in the hollow column. Retracting the telescopic cylinder, resetting by means of the first return spring, drives the sliding ring to move. The round rod slides in the guide groove part to deflect and reset the rotating cylinder. At the same time, the torsion spring is stressed and twisted to provide self-return ability for it.

[0014] In some embodiments, the guide groove part includes a straight sliding groove I opened on the rotating cylinder. One end of the round rod is located in the straight sliding groove I and can slide along it to move the extrusion roller to keep in contact with the label.

[0015] In some embodiments, a spiral groove is formed in the rotating cylinder. The spiral groove intersects and communicates with the top end of the straight chute one, and the straight chute one is designed with a depth greater than that of the spiral groove. An arc-shaped transition groove is formed in the rotating cylinder. The spiral groove and the other end of the straight chute one are respectively connected to both ends of the arc-shaped transition groove in a communicating manner, and the bottom surfaces of both ends of the arc-shaped transition groove respectively intersect with the spiral groove and the straight chute one.

[0016] One end of the round rod is fixedly connected with a second return spring. One end of the spring two is fixed to the inner wall of the hollow column. When the torsion spring resets, it drives the round rod to slide along the arc-shaped transition groove. At the same time, the support frame deflects. At the same time, the inner wall of the arc-shaped transition groove squeezes the round rod. At the same time, the second return spring is compressed and contracted. Then the sliding ring resets, driving the cylinder to move along the spiral groove, so that the support frame deflects and resets.

[0017] In some embodiments, the connecting piece includes a dial plate fixedly connected to the first hollow shaft. One end of the dial plate is fixedly connected with an arc-shaped plate. An annular groove is formed in the sliding ring. One end of the arc-shaped plate is located in the annular groove. Moving the sliding ring drives the first hollow shaft to move.

[0018] In some embodiments, the mounting plate and the mounting frame are detachably connected, and one end of the pull rope is also detachably connected to the telescopic cylinder.

[0019] In some embodiments, one end of the hollow column passes through the third chute and is rotatably connected with a pulley. One end of the pull rope bypasses the pulley and is fixed to the mounting frame.

[0020] The present invention has at least the following beneficial effects:

[0021] When the telescopic cylinder is started and drives the extrusion roller to extend to fold the label, the linkage component is used to drive the extrusion roller to move along with the label, thereby avoiding the friction between the two in the moving direction of the conveyor belt, and thus ensuring the perfect fitting of the label.

[0022] At the same time, after the extrusion roller folds and fits the label well, the flipping component is used to drive the extrusion roller to disengage from the label, so as to avoid causing additional friction or damage to the label when the extrusion roller resets. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of an existing label film laminating device;

[0024] Figure 2 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0025] Figure 3 For the present invention Figure 2 Partial cross-sectional structural diagram;

[0026] Figure 4 For the present inventionFigure 3 Schematic diagram of the structure in Area A

[0027] Figure 5 This is the present invention Figure 3 Schematic diagram of the structure from another orientation

[0028] Figure 6 This is the present invention Figure 5 Schematic diagram of the sectional structure

[0029] Figure 7 This is the present invention Figure 6 Schematic diagram of the sectional structure

[0030] Figure 8 This is the present invention Figure 7 Schematic diagram of the sectional structure

[0031] Figure 9 This is the present invention Figure 8 Schematic diagram of the structure in Area B

[0032] Figure 10 Schematic diagram of the structure of Embodiment 2 of the present invention

[0033] In the figure: 1, conveyor belt; 11, mounting bracket; 12, telescopic cylinder; 2, support frame; 3, guide rod; 4, linkage assembly; 5, extrusion roller; 41, mounting plate; 42, hollow shaft one; 43, mounting frame; 44, rotating cylinder; 45, sliding ring; 46, connecting piece; 47, return spring one; 48, transmission part; 49, guide wheel; 51, pulling rope; 52, hollow shaft two; 53, flipping assembly; 54, torsion spring; 55, round rod; 56, guide groove part; 57, chute three; 58, hollow column; 59, straight chute one; 61, spiral groove; 62, arc transition groove; 63, return spring two; 64, dial plate; 65, arc plate; 66, annular groove; 67, pulley Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0035] Embodiment 1: Please refer to Figures 1 - 9 , the present invention provides a technical solution: a plastic label film laminating device, including a conveyor belt 1 and a mounting bracket 11 installed on the conveyor belt 1, a telescopic cylinder 12 is fixedly connected to the mounting bracket 11, and further includes:

[0036] The support frame 2 is arranged on the extended end of the telescopic cylinder 12, and an extrusion roller 5 is arranged on the support frame 2. The telescopic cylinder 12 is started to drive the support frame 2 to move, so that the extrusion roller 5 extends out to fold the label.

[0037] The guide rod 3 is arranged on the support frame 2, and the extrusion roller 5 is slidably connected to the guide rod 3.

[0038] The linkage assembly 4 is arranged on the support frame 2, and the extrusion roller 5 is connected to the telescopic cylinder 12 through the linkage assembly 4. The extrusion roller 5 extends out following the telescopic cylinder 12, and at the same time, the linkage assembly 4 is used to drive the extrusion roller 5 to slide along the guide rod 3, so that the extrusion roller 5 follows the label to move.

[0039] During specific operation, when the telescopic cylinder 12 is started and drives the extrusion roller 5 to extend out to fold the label, the linkage assembly 4 is used to drive the extrusion roller 5 to follow the label to move, thereby avoiding the friction between the two in the moving direction of the conveyor belt 1, and thus ensuring perfect label fitting.

[0040] At the same time, after the extrusion roller 5 folds and fits the label well, the flipping assembly 53 is used to drive the extrusion roller 5 to disengage from the label, so that when the extrusion roller 5 resets, additional friction or damage to the label is avoided.

[0041] The extended end of the telescopic cylinder 12 is fixedly connected with a mounting plate 41, and the support frame 2 is connected to the mounting plate 41.

[0042] The linkage assembly 4 includes a hollow shaft one 42 sleeved on the guide rod 3. The hollow shaft is slidably connected to the guide rod 3. The extrusion roller 5 is rotatably connected to the hollow shaft one 42 through a bearing. An installation frame 43 is arranged on the mounting plate 41. One end of the support frame 2 is fixedly connected with a rotating cylinder 44. The installation frame 43 is connected to the rotating cylinder 44. A sliding ring 45 is slidably connected to the rotating cylinder 44. A connecting piece 46 is arranged between the sliding ring 45 and the hollow shaft one 42. A return spring one 47 is sleeved on the rotating cylinder 44. Both ends of the return spring one 47 are in contact and abutted against the installation frame 43 and the sliding ring 45 respectively. Moving the sliding ring 45 drives the extrusion roller 5 to slide along the guide rod 3 by means of the connecting piece 46. At the same time, the return spring one 47 is stressed and contracts to provide its self-restoring ability.

[0043] A transmission part 48 is arranged on the installation frame 43. Both ends of the transmission part 48 are respectively connected to the telescopic cylinder 12 and the sliding ring 45. When the telescopic cylinder 12 is started, the transmission part 48 is used to drive the sliding ring 45 to move.

[0044] The transmission member 48 includes a guide wheel 49 rotatably connected to the mounting bracket 43 through a rotating shaft. A pull rope 51 is provided on the mounting bracket 43. One end of the pull rope 51 is connected to the sliding ring 45, and the other end bypasses the guide wheel 49 and is connected to the fixed end of the telescopic cylinder 12. When the telescopic cylinder 12 is started, it drives the extrusion roller 5 to move, and at the same time, the sliding ring 45 is pulled by the pull rope 51 to slide along the rotating cylinder 44.

[0045] A hollow shaft two 52 is fixedly connected to the mounting bracket 43. The rotating cylinder 44 passes through the hollow shaft two 52 and is rotatably connected thereto. A flipping assembly 53 is provided on the mounting bracket 43. The flipping assembly 53 is connected to the rotating cylinder 44. After the extrusion roller 5 moves to fold the label, the rotating cylinder 44 is driven to rotate by the flipping assembly 53 to drive the extrusion roller 5 away from the label, so that the extrusion roller 5 does not contact the label during the reset process, thereby avoiding additional friction or damage to the label when the extrusion roller 5 is reset.

[0046] The flipping assembly 53 includes a torsion spring 54 sleeved on the rotating cylinder 44. Two ends of the torsion spring 54 are respectively fixedly connected to the hollow shaft two 52 and the support frame 2. A round rod 55 is slidably connected inside the sliding ring 45. A guide groove member 56 is formed on the rotating cylinder 44. One end of the round rod 55 is located inside the guide groove member 56. A chute three 57 is formed on the mounting bracket 43, and a hollow column 58 is fixedly connected to the sliding ring 45. One end of the hollow column 58 slidably passes through the chute three 57. One end of the round rod 55 is located inside the hollow column 58 and is slidably connected to its inner wall. When the telescopic cylinder 12 is retracted to drive the extrusion roller 5 to move back, and at the same time the pull rope 51 is released, at this time, the sliding ring 45 is pushed to move by the reset of the first reset spring 47, and then the round rod 55 slides inside the guide groove member 56, so that the rotating cylinder 44 deflects and resets, and at the same time the torsion spring 54 is stressed and twisted to provide self-recovery ability for it.

[0047] The guide groove member 56 includes a straight chute one 59 formed on the rotating cylinder 44. One end of the round rod 55 is located inside the straight chute one 59 and can slide along it to keep the extrusion roller 5 in contact with the label. Specifically, one end of the round rod 55 is located inside the straight chute one 59 and is slidably connected to its inner wall. At this time, the second reset spring 63 is in the initial state, and at this time the extrusion roller 5 is also in the initial state. When the telescopic cylinder 12 is started to drive the extrusion roller 5 to move and fold the label, at the same time, one end of the round rod 55 slides along the straight chute one 59 to maintain the stable state of the extrusion roller 5.

[0048] The rotating cylinder 44 is provided with a spiral groove 61, and the spiral groove 61 intersects and is conductively connected to the top end of the first straight chute 59. Moreover, the first straight chute 59 is designed with a depth greater than that of the spiral groove 61. At this time, a step is formed at the intersection of the spiral groove 61 and the first straight chute 59. The rotating cylinder 44 is provided with an arc-shaped transition groove 62. The spiral groove 61 and the other end of the first straight chute 59 are respectively conductively connected to both ends of the arc-shaped transition groove 62. And the bottom surfaces of both ends of the arc-shaped transition groove 62 intersect with the spiral groove 61 and the first straight chute 59 respectively. One end of the round rod 55 is fixedly connected with a second return spring 63, and one end of the second spring is fixedly connected to the inner wall of the hollow column 58. When the pressing roller 5 extends out to turn over the label to the bottom, at the same time, the round rod 55 moves into the arc-shaped transition groove 62. At this time, the torsion spring 54 resets, driving the round rod 55 to slide along the arc-shaped transition groove 62. At the same time, the support frame 2 deflects, driving the pressing roller 5 to tilt away from the label. At the same time, the inner wall of the arc-shaped transition groove 62 is used to squeeze the round rod 55, so that the second return spring 63 is compressed and contracted. Then the telescopic cylinder 12 resets, driving the sliding ring 45 to move and reset by using the first return spring 47, and further driving the cylinder to move along the spiral groove 61, thereby driving the rotating cylinder 44 to rotate. At the same time, the torsion spring 54 is twisted and stores energy again. At the same time, when the cylinder crosses the step between the spiral groove 61 and the first straight chute 59, the second return spring 63 is used to reset and drive the round rod 55 to extend out and completely fit the first straight chute 59.

[0049] The connecting member 46 includes a dial plate 64 fixedly connected to the first hollow shaft 42. One end of the dial plate 64 is fixedly connected with an arc-shaped plate 65. The sliding ring 45 is provided with an annular groove 66. One end of the arc-shaped plate 65 is located in the annular groove 66 and is slidably connected to its inner wall. Moving the sliding ring 45 drives the first hollow shaft 42 to move.

[0050] The mounting plate 41 and the mounting frame 43 are detachably connected, and one end of the pull rope 51 is also detachably connected to the telescopic cylinder 12, so that the device main body can be detached from the telescopic cylinder 12, improving its flexibility.

[0051] Embodiment 2: Please refer to Figures 1 - 10 , the present invention provides a technical solution: a plastic label film laminating device, and Embodiment 2 is optimized on the basis of Embodiment 1;

[0052] One end of the hollow column 58 slidably passes through the third chute 57 and is rotatably connected with a pulley 67 through a bearing. One end of the pull rope 51 bypasses the pulley 67 and is fixedly connected to the mounting frame 43. With this design, when the telescopic cylinder 12 works, it can drive the pressing roller 5 to move along with the label at a speed slower than that of the telescopic cylinder 12. Furthermore, the designed speed of the telescopic cylinder 12 can be increased to improve work efficiency.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0054] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic label film laminating device, comprising a conveyor belt (1) and a mounting bracket (11) arranged on the conveyor belt (1), wherein a telescopic cylinder (12) is fixedly connected to the mounting bracket (11), characterized in that: Also included are: A support frame (2) is arranged on the extended end of the telescopic cylinder (12), and a squeezing roller (5) is arranged on the support frame (2). The telescopic cylinder (12) is started to drive the support frame (2) to move, so that the squeezing roller (5) extends out of the folding label; A guide rod (3) is arranged on the support frame (2), and the squeezing roller (5) is slidably connected to the guide rod (3); A linkage assembly (4) is arranged on the support frame (2), and the squeezing roller (5) is connected to the telescopic cylinder (12) through the linkage assembly (4). The squeezing roller (5) extends along with the telescopic cylinder (12), and the linkage assembly (4) drives the squeezing roller (5) to slide along the guide rod (3), so that the squeezing roller (5) moves along with the label; The extended end of the telescopic cylinder (12) is fixedly connected to a mounting plate (41), and the support frame (2) is connected to the mounting plate (41); The linkage assembly (4) comprises a hollow shaft (42) sleeved on the guide rod (3), the squeezing roller (5) is rotatably connected to the hollow shaft (42), and a mounting frame (43) is provided on the mounting plate (41), one end of the support frame (2) is fixedly connected to a rotating cylinder (44), the mounting frame (43) is connected to the rotating cylinder (44), a sliding ring (45) is slidably connected to the rotating cylinder (44), a connecting member (46) is provided between the sliding ring (45) and the hollow shaft (42), and a return spring (47) is sleeved on the rotating cylinder (44), the two ends of the return spring (47) are respectively in contact with the mounting frame (43) and the sliding ring (45) to resist each other, and the sliding ring (45) is moved to drive the squeezing roller (5) to slide along the guide rod (3), and at the same time, the return spring (47) is contracted under force to provide it with self-restoring ability; The mounting frame (43) is provided with a transmission member (48), and two ends of the transmission member (48) are respectively connected to the telescopic cylinder (12) and the sliding ring (45). When the telescopic cylinder (12) is started, the sliding ring (45) is driven to move by the transmission member (48); The transmission member (48) comprises a guide wheel (49) rotatably connected to the mounting frame (43); a pull rope (51) is provided on the mounting frame (43); one end of the pull rope (51) is connected to the sliding ring (45); the other end of the pull rope (51) passes around the guide wheel (49) and is connected to the fixed end of the telescopic cylinder (12).

2. The plastic label film laminating device according to claim 1, characterized in that: The mounting frame (43) is fixedly connected to a second hollow shaft (52); the rotating cylinder (44) passes through the second hollow shaft (52) and is rotatably connected thereto; a flip assembly (53) is provided on the mounting frame (43); the flip assembly (53) is connected to the rotating cylinder (44); after the squeezing roller (5) is moved to fold the label, the flip assembly (53) is used to drive the rotating cylinder (44) to rotate, thereby driving the squeezing roller (5) to separate from the label, so that the squeezing roller (5) does not contact the label during the resetting process.

3. The plastic label film laminating device according to claim 2, characterized in that: The flip assembly (53) comprises a torsion spring (54) sleeved on a rotating cylinder (44), the two ends of the torsion spring (54) being respectively fixed to the second hollow shaft (52) and the support frame (2), a round rod (55) being slidably connected in the sliding ring (45), a guide groove (56) being provided on the rotating cylinder (44), one end of the round rod (55) being located in the guide groove (56), a sliding groove (57) being provided on the mounting frame (43), and the sliding ring (45 ) is fixedly connected to a hollow column (58), one end of the hollow column (58) slides through the slide groove three (57), one end of the round rod (55) is located in the hollow column (58), the telescopic cylinder (12) is retracted, and the return spring one (47) is used to reset, drive the sliding ring (45) to move, and use the round rod (55) to slide in the guide groove member (56) to deflect and reset the rotating cylinder (44), and at the same time, the torsion spring (54) is twisted by force to provide it with self-restoring ability.

4. The plastic label film laminating device according to claim 3, characterized in that: The guide groove member (56) comprises a straight slide groove (59) formed on the rotating cylinder (44); one end of the round rod (55) is located in the straight slide groove (59) and can slide along the straight slide groove to move the squeezing roller (5) to maintain contact with the label.

5. The plastic label film laminating device according to claim 4, characterized in that: The rotating cylinder (44) is provided with a spiral groove (61), the spiral groove (61) intersects and is connected with the top end of the straight slide groove (59), and the straight slide groove (59) is designed to have a depth greater than that of the spiral groove (61). The rotating cylinder (44) is provided with an arc-shaped transition groove (62), the spiral groove (61) and the other end of the straight slide groove (59) are respectively connected with the two ends of the arc-shaped transition groove (62), and the bottom surfaces of the two ends of the arc-shaped transition groove (62) intersect with the spiral groove (61) and the straight slide groove (59) respectively; One end of the round rod (55) is fixedly connected to a second return spring (63), one end of which is fixed to the inner wall of the hollow column (58). The torsion spring (54) is reset, driving the round rod (55) to slide along the arc-shaped transition groove (62), and the support frame (2) is deflected. At the same time, the inner wall of the arc-shaped transition groove (62) is used to squeeze the round rod (55). At the same time, the second return spring (63) is compressed and contracted, and the rear sliding ring (45) is reset, driving the column to move along the spiral groove (61), so that the support frame (2) is deflected and reset.

6. The plastic label film laminating device according to claim 5, characterized in that: The connecting member (46) comprises a shifting plate (64) fixedly connected to the hollow shaft (42); one end of the shifting plate (64) is fixedly connected to an arc plate (65); an annular groove (66) is formed on the sliding ring (45); one end of the arc plate (65) is located in the annular groove (66); moving the sliding ring (45) drives the hollow shaft (42) to move.

7. The plastic label film laminating device according to claim 6, characterized in that: The mounting plate (41) and the mounting frame (43) are detachably connected, and one end of the pull rope (51) is also detachably connected to the telescopic cylinder (12).

8. The plastic label film laminating device according to claim 7, characterized in that: One end of the hollow column (58) passes through the third slide groove (57) and is rotatably connected to a pulley (67), and one end of the pull rope (51) passes around the pulley (67) and is fixed to the mounting frame (43).

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