A laminating mechanism for a laminator

Abstract

The utility model discloses a laminating mechanism for laminating machine relates to laminating machine field, to solve the laminating mechanism of prior art adopts single material roll, needs to stop machine to carry out material roll replacement after film roll use, laminating machine downtime is long, the problem of influence production efficiency. The first side plate is fixedly connected with the second side plate at the upper end surface one side front end of conveying belt mechanism, the first side plate and the second side plate between one side rotatable connection has laminating roll, the first side plate and the second side plate between middle rotatable connection has compression roll, the second side plate front end is away from laminating roll one side upper end rotatable connection has the rotary frame in, both sides rotatable connection has the support shaft in the rotary frame front end, two the support shaft is positionally connected with material roll, adopts double material roll rotary structure design, realizes the quick switching of two material rolls through the rotary frame that can 180 degree rotation, and the equipment downtime is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of laminating machines, specifically a laminating mechanism for a laminating machine. Background Technology

[0002] A laminating machine is a specialized piece of equipment used for surface treatment. It primarily applies plastic film to the surface of printed materials, photographs, posters, documents, packaging boxes, etc., using hot pressing or cold lamination processes to achieve effects such as waterproofing, stain resistance, wear resistance, increased gloss, or improved texture. Based on the process, it is divided into on-site coating laminating machines and pre-coated laminating machines. The former applies adhesive on-site, while the latter uses pre-coated film. Widely used in printing and packaging, advertising production, and photo album binding, it significantly improves the durability and aesthetics of products, making it one of the key pieces of equipment in post-printing processing.

[0003] For example, patent announcement number CN218053991U discloses a high-efficiency laminating mechanism for a laminating machine, including a worktable with a conveyor belt installed inside. Two side plates are fixedly connected to the top of the worktable, and a support base is fixedly connected to the bottom of the worktable. A material roller is rotatably connected between the two side plates, and a guide roller is rotatably connected above the material roller. An arc-shaped groove is formed on the side plate, and a positive plate roller is connected inside the arc-shaped groove. Under the action of a hydraulic cylinder, the position and height of the hot-pressing roller are adjusted by the support base, and the position of the positive plate roller is fixed in the arc-shaped groove. Then, the plastic film is fed out from the roll on the material roller, tightened by the guide roller, and fed into the area below the hot-pressing roller. After being pressed with the cardboard, it enters the area below the positive plate roller and rolls the laminated cardboard again to prevent bending. The height of the positive plate roller can be adjusted in the arc-shaped groove according to the material thickness.

[0004] However, the laminating mechanism in the above technology uses a single material roller, which requires the machine to be stopped to replace the material roller after the film roll is used up. The downtime of the laminating machine is long, which affects the production efficiency. Therefore, the market urgently needs to develop a laminating mechanism for laminating machines to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide a laminating mechanism for a laminating machine, so as to solve the problem mentioned in the background art that the laminating mechanism uses a single material roller, and the machine needs to be stopped to replace the material roller after the film roll is used up, resulting in long downtime of the laminating machine and affecting production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laminating mechanism for a laminating machine, comprising a conveyor belt mechanism, wherein a first side plate is fixedly connected to the front end of one side of the upper end face of the conveyor belt mechanism, and a second side plate is fixedly connected to the rear end of one side of the upper end face of the conveyor belt mechanism; a laminating roller is rotatably connected to one side between the first side plate and the second side plate; a pressing roller is rotatably connected to the middle between the first side plate and the second side plate; a rotating frame is rotatably connected to the upper end of the front end of the second side plate away from the laminating roller; support shafts are rotatably connected to both sides of the front end of the rotating frame; and material rollers are connected to the upper limits of the two support shafts.

[0007] Preferably, the rear ends of the two support shafts are rotatably connected to the rotating frame via damping shafts. Rectangular keyways are provided at both the upper and lower ends of the outer wall of the support shafts. A circular through groove is provided in the middle of the material roller. Rectangular keys are fixedly connected at both the upper and lower ends of the circular through groove of the material roller.

[0008] Preferably, the support shaft is inserted into the circular through groove and the two rectangular keys slide into the two rectangular keyways respectively.

[0009] Preferably, a threaded hole is provided at the middle of the front end of the support shaft, a bolt is provided at the front end of the support shaft, a clamp is fixedly connected to the front end of the outer wall of the bolt, the rear end of the bolt is inserted into the threaded hole and threadedly connected and fixed to the front end of the support shaft, and the rear end of the clamp fits against the front end of the material roller.

[0010] Preferably, a drive device is fixedly connected to the upper end of one side of the rear end face of the second side plate, a drive motor is fixedly installed inside the drive device, and a worm gear is fixedly connected to the upper end of the output shaft of the drive motor.

[0011] Preferably, a rotating shaft is fixedly connected to the middle of the rear end of the rotating frame, and the rear end of the rotating shaft passes through the second side plate and extends into the drive device and is fixedly connected to a worm gear.

[0012] Preferably, the worm gear on the rotating shaft is meshed with the worm teeth on the output shaft of the drive motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, a dual-roller rotary structure design is used, and the two rollers can be quickly switched through a rotating frame that can rotate 180 degrees, which greatly reduces equipment downtime and significantly improves production efficiency.

[0015] (2) In this utility model, a worm gear transmission mechanism is innovatively used to drive the rotating frame to rotate. Its self-locking characteristics ensure that the working position of the material roller is stable and reliable. At the same time, with the damping shaft design, it can provide stable tension control for unwinding the film roll and ensure the consistency of the coating quality.

[0016] (3) In this utility model, the material roller adopts a keyway quick-release structure, which, together with the front clamping plate fixing device, not only ensures the stability and coaxiality of the material roller installation, but also realizes the quick replacement of the film roll. The operation is simple, greatly reducing the labor intensity of workers and improving the safety of operation. Attached Figure Description

[0017] Figure 1 This is a front view of a laminating mechanism for a laminating machine according to the present invention;

[0018] Figure 2 This is a front sectional view of the coating mechanism of this utility model;

[0019] Figure 3 This is a side sectional view of the material roller of this utility model;

[0020] Figure 4 This is a side sectional view of the rotating frame of this utility model;

[0021] Figure 5 This is a front sectional view of the drive device of this utility model.

[0022] In the diagram: 1. Conveyor belt mechanism; 101. First side plate; 102. Second side plate; 103. Coating roller; 104. Pressing roller; 2. Rotating frame; 201. Rotating shaft; 202. Worm gear; 203. Support shaft; 204. Rectangular keyway; 205. Damping shaft; 206. Threaded hole; 207. Bolt; 208. Clamping plate; 3. Material roller; 301. Circular through slot; 302. Rectangular key; 4. Drive device; 401. Drive motor; 402. Worm gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5This utility model provides an embodiment of a laminating mechanism for a laminating machine, comprising a conveyor belt mechanism 1. A first side plate 101 is fixedly connected to the front end of one side of the upper end face of the conveyor belt mechanism 1, and a second side plate 102 is fixedly connected to the rear end of one side of the upper end face of the conveyor belt mechanism 1. A laminating roller 103 is rotatably connected between the first side plate 101 and the second side plate 102 on one side. A pressing roller 104 is rotatably connected between the middle of the first side plate 101 and the second side plate 102. A rotating frame 2 is rotatably connected to the upper end of the front end of the second side plate 102 away from the laminating roller 103. Support shafts 203 are rotatably connected to both sides of the front end of the rotating frame 2. The upper limit of the support shaft 203 is connected to the material roller 3. The rear ends of the two support shafts 203 are rotatably connected to the rotating frame 2 via damping shafts 205. Rectangular keyways 204 are provided at both the upper and lower ends of the outer wall of the support shaft 203. A circular through groove 301 is provided in the middle of the material roller 3. Rectangular keys 302 are fixedly connected at both the upper and lower ends of the circular through groove 301 of the material roller 3. The support shaft 203 is inserted into the circular through groove 301 and the two rectangular keys 302 slide into the two rectangular keyways 204 respectively. When the material roller 3 rotates, it synchronously drives the support shaft 203 to rotate. The damping shafts 205 provide damping for the rotation of the support shaft 203. A threaded hole 206 is provided in the middle of the end. A bolt 207 is provided at the front end of the support shaft 203. A clamp 208 is fixedly connected to the front end of the outer wall of the bolt 207. The rear end of the bolt 207 is inserted into the threaded hole 206 and threadedly connected to the front end of the support shaft 203. The rear end of the clamp 208 is in contact with the front end of the material roller 3. The clamp 208 is used to limit the front end of the material roller 3 and prevent the material roller 3 from sliding longitudinally on the support shaft 203. Before using the laminating machine, two material rollers 3 equipped with film rolls are first installed on the two support shafts 203, so that the film roll on the material roller 3 adjacent to the laminating roller 103 is used first. When the material roller 3 unwinds the film roll, it is passed through... The damping shaft 205 provides damping force to keep the film roll taut during unwinding. After the film roll is used up, the two rollers 3 are swapped by rotating the rotating frame 2 180 degrees. The roller 3 with the film roll is rotated to the side adjacent to the coating roller 103, while the unwound roller 3 is rotated to the side away from the coating roller 103. The operator can then continue to connect the film roll on the roller 3 adjacent to the coating roller 103 for use. When the coating machine continues to work, the operator can remove the bolt 207 at the front end of the unwound roller 3 and pull the unwound roller 3 forward to disengage it from the support shaft 203, and then reinstall the roller 3 to be unwound.

[0025] Please see Figure 4 and Figure 5A drive device 4 is fixedly connected to the upper end of one side of the rear end face of the second side plate 102. A drive motor 401 is fixedly installed inside the drive device 4. A worm gear 402 is fixedly connected to the upper end of the output shaft of the drive motor 401. A rotating shaft 201 is fixedly connected to the middle of the rear end of the rotating frame 2. The rear end of the rotating shaft 201 passes through the second side plate 102 and extends into the drive device 4, where a worm wheel 202 is fixedly connected. The worm wheel 202 on the rotating shaft 201 meshes with the teeth of the worm gear 402 on the output shaft of the drive motor 401. The drive motor 401 drives the rotating shaft 201 to rotate 180 degrees via the worm gear 402 and the worm wheel 202, thereby causing the rotating shaft 2 to rotate 180 degrees, realizing the exchange of positions of the two material rollers 3. Through the self-locking principle of the worm gear 402 and the worm wheel 202, the rotating frame 2 remains stable after rotation.

[0026] Working Principle: In operation, two pre-loaded film rolls 3 are first installed on the support shafts 203 on both sides of the rotating frame 2. The rectangular key 302 and rectangular keyway 204 work together to achieve synchronous rotation of the film rolls 3 and the support shafts. The clamp 208 at the front end of the bolt 207 fixes and limits the film rolls 3 in place. During operation, the film roll 3 closest to the coating roller 103 is unwound. After being guided by the guide roller, the film, along with the material on the conveyor belt, passes synchronously through the coating roller 103 and the pressing roller 104 to complete the coating operation. At this time, the damping force provided by the damping shaft 205 keeps the film taut. When the film roll on this side is exhausted, the drive motor 401 is started, driving the worm gear 202 to rotate 180 degrees via the worm 402, causing the rotating frame 2 to rotate as a whole. This causes the fully loaded film roll 3 to rotate to the working position, while the empty film roll 3 rotates to the replacement position. The replacement film roll 3 can be quickly disassembled and replaced with a new film roll by loosening the bolt 207. This mechanism greatly reduces downtime for film replacement through its dual-station rotary design, and the worm gear self-locking feature ensures stable working position, significantly improving the continuity and production efficiency of film coating operations.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A laminating mechanism for a laminating machine, comprising a conveyor belt mechanism (1), characterized in that: The conveyor belt mechanism (1) has a first side plate (101) fixedly connected to the front end of one side of its upper end face, and a second side plate (102) fixedly connected to the rear end of one side of its upper end face. A film-coating roller (103) is rotatably connected between the first side plate (101) and the second side plate (102). A pressing roller (104) is rotatably connected between the first side plate (101) and the second side plate (102). A rotating frame (2) is rotatably connected to the upper end of the side of the second side plate (102) away from the film-coating roller (103). Support shafts (203) are rotatably connected to both sides of the front end of the rotating frame (2). A material roller (3) is connected to the upper limit of the two support shafts (203).

2. The coating mechanism for a coating machine according to claim 1, characterized in that: The rear ends of the two support shafts (203) are rotatably connected to the rotating frame (2) via damping shafts (205). Rectangular keyways (204) are provided at both the upper and lower ends of the outer wall of the support shafts (203). A circular through groove (301) is provided in the middle of the material roller (3). Rectangular keys (302) are fixedly connected at both the upper and lower ends of the circular through groove (301) of the material roller (3).

3. A laminating mechanism for a laminating machine according to claim 1, characterized in that: The support shaft (203) is inserted into the circular through groove (301) and the two rectangular keys (302) slide into the two rectangular keyways (204) respectively.

4. A laminating mechanism for a laminating machine according to claim 1, characterized in that: The support shaft (203) has a threaded hole (206) at the middle of its front end. The support shaft (203) has a bolt (207) at its front end. A clamp (208) is fixedly connected to the front end of the outer wall of the bolt (207). The rear end of the bolt (207) is inserted into the threaded hole (206) and is threadedly connected to the front end of the support shaft (203). The rear end of the clamp (208) is in contact with the front end of the material roller (3).

5. A laminating mechanism for a laminating machine according to claim 1, characterized in that: A drive device (4) is fixedly connected to the upper end of one side of the rear end face of the second side plate (102). A drive motor (401) is fixedly installed inside the drive device (4). A worm gear (402) is fixedly connected to the upper end of the output shaft of the drive motor (401).

6. A laminating mechanism for a laminating machine according to claim 5, characterized in that: The rotating frame (2) is fixedly connected to the middle of the rear end of the rotating shaft (2). The rear end of the rotating shaft (201) passes through the second side plate (102) and extends into the drive device (4) and is fixedly connected to the worm gear (202).

7. A laminating mechanism for a laminating machine according to claim 6, characterized in that: The worm gear (202) on the rotating shaft (201) is meshed with the teeth of the worm (402) on the output shaft of the drive motor (401).

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