A label printing laminating device

Abstract

This utility model discloses a laminating device for label printing, relating to the field of label laminating technology. It includes a frame, on which a winding mechanism, a tensioning unit, a cooling air unit, a hot pressing unit, a guide roller, a label feeding mechanism, and a film feeding mechanism are sequentially fixed. The beneficial effects lie in the fact that the elastic roller sleeve is supported in sections by a first hydraulic telescopic mechanism, a first pressure sensing mechanism, and an arc-shaped top plate. This allows for localized adjustment of the force applied to the protective film and label strip at different positions of the elastic roller sleeve during operation, achieving self-balancing of the zoned pressure during the laminating process. This effectively improves the uniformity of pressure applied by the elastic roller sleeve to the label strip and protective film, effectively eliminating bubbles and wrinkles at the laminating edges, and improving the quality of the lamination. Simultaneously, the zoned pressure adjustment improves the uniformity of wear during the pressing process of the elastic roller sleeve, avoiding excessive localized wear, extending service life, and reducing cost waste.

Description

Technical Field

[0001] This utility model relates to the field of label coating technology, and in particular to a coating device for label printing. Background Technology

[0002] Label lamination refers to the process of applying a transparent plastic film to paper products. It involves using a lamination device to cover the surface of printed materials with this film, creating a paper-plastic composite product. The purpose is to better protect the printed colors and patterns on the label, resulting in a smooth and flat label surface. Label lamination requires the use of a lamination device to ensure efficiency.

[0003] A search revealed that Chinese patent application CN222372516U discloses a hot stamping lamination device for label printing. It mainly uses a structure of heated curing plate and electric heating roller to accelerate the curing of adhesive and improve the efficiency and effect of lamination.

[0004] Compared with existing technologies in related fields, it can be seen that most existing hot press rollers used in the lamination process are integral hot press rollers. Due to wear and tear and temperature effects after long-term use, the hot press rollers are prone to uneven lateral pressure distribution, resulting in defects such as edge bubbles and wrinkles in the laminated products, which affects the quality of lamination. Utility Model Content

[0005] The purpose of this invention is to provide a label printing laminating device to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A label printing laminating device includes a frame, on which a winding mechanism, a tensioning unit, a cooling air unit, a hot pressing unit, a guide roller, a label feeding mechanism, and a film feeding mechanism are sequentially fixed. The winding mechanism, the label feeding mechanism, and the film feeding mechanism are located on opposite sides of the frame, with the label feeding mechanism located below the film feeding mechanism.

[0008] The hot pressing unit includes a mounting frame and a first flow guide seat. The mounting frame is fixedly mounted on the machine frame. An adjustment component is fixedly mounted on the mounting frame. Two drive mechanisms are fixedly mounted on the adjustment component. An upper roller and a lower roller are fixedly mounted on the output shafts of the two drive mechanisms, respectively. An elastic roller sleeve is fixedly mounted on both the upper roller and the lower roller. A first hydraulic telescopic mechanism is arranged on the upper roller. A first pressure sensing mechanism is fixedly mounted on the telescopic end of the first hydraulic telescopic mechanism. An arc-shaped top plate is fixedly mounted on the first pressure sensing mechanism. The arc-shaped top plate is fixedly connected to the elastic roller sleeve. A heat-conducting component is fixedly mounted inside the elastic roller sleeve. The first flow guide seat is fixedly mounted on the housing of the drive mechanism and is connected to the first hydraulic telescopic mechanism.

[0009] Furthermore, the heat-conducting component includes a second flow guide seat and a flow guide hole. The second flow guide seat is fixedly installed on the housing of the drive mechanism. The second flow guide seat is rotatably connected to the upper roller and the lower roller. The second flow guide seat communicates with the flow guide hole, which is located inside the elastic roller sleeve and communicates with the second flow guide seat.

[0010] Furthermore, the adjustment component includes a bidirectional lifting mechanism, which is fixedly mounted on the mounting frame. Slides are fixedly mounted at both ends of the bidirectional lifting mechanism, and the slides are fixedly connected to the drive mechanism.

[0011] Furthermore, the tensioning unit includes a bracket and a roller mechanism. The bracket is fixedly installed on the frame, which is located near the winding mechanism, the label feeding mechanism, and the film feeding mechanism. A second hydraulic telescopic mechanism is fixedly installed on the bracket. A movable plate is fixedly installed on the telescopic end of the second hydraulic telescopic mechanism. An elastic component and a detection component are fixedly installed on the movable plate. The roller mechanism is fixedly installed on the elastic component.

[0012] Furthermore, the elastic component includes a telescopic rod, which is fixedly mounted on the movable plate. The telescopic end of the telescopic rod is fixedly connected to a roller mechanism, and a spring is sleeved on the telescopic rod.

[0013] Furthermore, the detection component includes a second pressure sensing mechanism and an elastic block. The second pressure sensing mechanism is fixedly mounted on the movable plate, and the elastic block is fixedly mounted on the roller mechanism. The elastic block is connected to the second pressure sensing mechanism.

[0014] Furthermore, the cold air unit includes two cold air guide seats, which are fixedly installed on the frame. The cold air guide seats are located between the winding mechanism and the hot pressing unit, and air outlets are arranged on the opposite sides of the two cold air guide seats.

[0015] The advantages compared to existing technologies are as follows:

[0016] 1. By arranging the first hydraulic telescopic mechanism, the first pressure sensing mechanism, and the arc-shaped top plate to provide zoned support for the elastic roller sleeve, the force applied to the protective film and label strip at different positions of the elastic roller sleeve during operation can be locally adjusted. This achieves zoned pressure self-balancing during the lamination process, effectively improving the uniformity of pressure applied by the elastic roller sleeve to the label strip and protective film, effectively eliminating bubbles and wrinkles at the lamination edges, and improving the quality of lamination. At the same time, through zoned pressure adjustment, the uniformity of wear during the pressing process of the elastic roller sleeve is improved, avoiding excessive local wear, extending service life, and reducing cost waste.

[0017] 2. The laminated labels are cooled in stages through the cold air guide seat and the arranged air outlets to ensure the cooling effect of the labels. At the same time, the gradual cooling effectively reduces the accumulation of thermal stress in the lamination and ensures the lamination effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first isometric structural schematic diagram of a label printing laminating device according to the present invention;

[0020] Figure 2 This utility model describes a laminating device for label printing. Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic cross-sectional view of the mounting frame and elastic roller sleeve of the label printing laminating device described in this utility model;

[0022] Figure 4 This utility model describes a laminating device for label printing. Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 This is a schematic cross-sectional view of the upper roller, lower roller, and elastic roller sleeve of the label printing laminating device described in this utility model;

[0024] Figure 6 This utility model describes a laminating device for label printing. Figure 5 Enlarged structural diagram at point C;

[0025] Figure 7 This utility model describes a laminating device for label printing. Figure 5 Enlarged structural diagram at point D;

[0026] Figure 8 This is a second isometric structural schematic diagram of a label printing laminating device according to the present invention.

[0027] The annotations in the attached figures are explained as follows:

[0028] 1. Frame; 2. Winding mechanism; 301. Mounting frame; 302. Bidirectional lifting mechanism; 303. Slide; 304. Drive mechanism; 305. Upper roller; 306. Guide hole; 307. Lower roller; 308. Elastic roller sleeve; 309. First hydraulic telescopic mechanism; 310. First pressure sensing mechanism; 311. Arc-shaped top plate; 312. First guide seat; 313. Second guide seat; 401. Bracket; 402. Second hydraulic telescopic mechanism; 403. Movable plate; 404. Telescopic rod; 405. Spring; 406. Second pressure sensing mechanism; 407. Elastic block; 408. Roller mechanism; 501. Cold air guide seat; 502. Air outlet; 6. Label feeding mechanism; 7. Film feeding mechanism; 8. Guide roller. Detailed Implementation

[0029] like Figures 1-8 As shown, a label printing laminating device includes a frame 1. A winding mechanism 2, a tensioning unit, a cooling air unit, a hot pressing unit, a guide roller 8, a label feeding mechanism 6, and a film feeding mechanism 7 are sequentially fixedly mounted on the frame 1. The winding mechanism 2, label feeding mechanism 6, and film feeding mechanism 7 are located on opposite sides of the frame 1. The label feeding mechanism 6 is located below the film feeding mechanism 7. The winding mechanism 2, tensioning unit, cooling air unit, hot pressing unit, guide roller 8, label feeding mechanism 6, and film feeding mechanism 7 operate using existing technology, with label feeding via roller... Mechanism 6 feeds the label tape, guides the label tape through guide roller 8, and feeds the protective film through film feeding mechanism 7. The label tape and protective film come into contact at the hot pressing unit, and are hot-pressed by the hot pressing unit so that the protective film covers the label tape. The bonded label tape and protective film are cooled by the cold air unit. The coated label tape is wound up by the winding mechanism 2. During the coating process, the label tape and protective film are tensioned by the tensioning unit to ensure the coating effect.

[0030] like Figures 3-7As shown, the hot pressing unit includes a mounting frame 301 and a first guide seat 312. The mounting frame 301 is fixedly mounted on the frame 1. An adjustment assembly is fixedly mounted on the mounting frame 301. Two drive mechanisms 304 are fixedly mounted on the adjustment assembly. An upper roller 305 and a lower roller 307 are fixedly mounted on the output shafts of the two drive mechanisms 304, respectively. An elastic roller sleeve 308 is fixedly mounted on both the upper roller 305 and the lower roller 307. A first hydraulic telescopic mechanism 309 is arranged on the upper roller 305. A first pressure sensing mechanism 310 is fixedly mounted on the telescopic end of the first hydraulic telescopic mechanism 309. An arc-shaped top plate 311 is fixedly mounted on the first pressure sensing mechanism 310. The arc-shaped top plate 311 is fixedly connected to the elastic roller sleeve 308. An elastic roller sleeve 308 is fixedly installed inside the elastic roller sleeve 308. The device includes a heat-conducting component. A first flow guide seat 312 is fixedly mounted on the housing of the drive mechanism 304. The first flow guide seat 312 is connected to a first hydraulic telescopic mechanism 309. The drive mechanism 304, the first hydraulic telescopic mechanism 309, and the first pressure sensing mechanism 310 operate using existing technology. The first flow guide seat 312 is connected to an external hydraulic control device, which controls the first hydraulic telescopic mechanism 309 through the first flow guide seat 312. During the label tape lamination process, based on the thickness of the label tape and the protective film, the two drive mechanisms 304 are moved via an adjusting component, thereby adjusting the distance between the upper roller 305 and the lower roller 307. This allows the elastic roller sleeves 308 on the upper roller 305 and the lower roller 307 to better adhere to the label tape and the protective film. During the lamination process, two drive mechanisms 304 drive the upper roller 305 and lower roller 307 to rotate, which in turn drive the elastic roller sleeve 308 to rotate. The lower roller 307 supports the label tape and protective film through the elastic roller sleeve 308, while the upper roller 305 presses down on the label tape and protective film through the elastic roller sleeve 308. The elastic roller sleeve 308 is heated by a heat-conducting component, which thermally activates the label tape and protective film, resulting in better adhesion. During operation, the upper roller 305 supports the elastic roller sleeve 308 through a first hydraulic telescopic mechanism 309, a first pressure sensing mechanism 310, and an arc-shaped top plate 311. The sensing mechanism 310 monitors the pressure applied by the elastic roller sleeve 308 to the contact point with the protective film in real time. During the lamination process, the first hydraulic telescopic mechanism 309 adjusts the arc-shaped top plate 311 through the first pressure sensing mechanism 310, adjusting the supporting force applied by the arc-shaped top plate 311 to the elastic roller sleeve 308. This adjusts the force applied by the elastic roller sleeve 308 to the protective film and label tape at different positions, achieving zoned pressure self-balancing during the lamination process. This effectively improves the uniformity of pressure applied by the elastic roller sleeve 308 to the label tape and protective film, effectively eliminating bubbles and wrinkles at the lamination edges, and improving the lamination quality. At the same time, through zoned pressure adjustment, the wear of the elastic roller sleeve 308 during the pressing process is made uniform, avoiding excessive local wear and extending its service life.Reduce cost waste.

[0031] like Figure 4 , Figure 6 , Figure 7 As shown, the heat-conducting component includes a second flow guide seat 313 and a flow guide hole 306. The second flow guide seat 313 is fixedly installed on the housing of the drive mechanism 304. The second flow guide seat 313 is rotatably connected to the upper roller 305 and the lower roller 307. The second flow guide seat 313 is connected to the flow guide hole 306, which is located inside the elastic roller sleeve 308. The flow guide hole 306 is connected to the second flow guide seat 313, and the second flow guide seat 313 is connected to an external heat flow conveying device. During the lamination process, the external heat flow conveying device delivers heat to the flow guide hole 306 through the second flow guide seat 313, thereby heating the elastic roller sleeve 308. The label tape and protective film are heated and pressed together by the elastic roller sleeve 308 on the upper roller 305 and the lower roller 307. At the same time as lamination and pressing, the label tape and protective film are thermally activated, so that the adhesive diffuses evenly in the pressure field, reducing the generation of edge bubbles. The label tape and protective film can be better bonded together, ensuring the quality of lamination.

[0032] like Figure 3 , Figure 5 As shown, the adjustment assembly includes a bidirectional lifting mechanism 302, which is fixedly mounted on the mounting frame 301. Slides 303 are fixedly mounted at both ends of the bidirectional lifting mechanism 302, and the slides 303 are fixedly connected to the drive mechanism 304. The bidirectional lifting mechanism 302 operates using existing technology. The bidirectional lifting mechanism 302 drives the slides 303 to move, thereby facilitating the adjustment of the distance between the upper roller 305 and the lower roller 307 according to the thickness of the label tape and the protective film, ensuring effective pressing of the label tape and the protective film, and ensuring the quality of the coating.

[0033] like Figure 1 , Figure 2 , Figure 8As shown, the tensioning unit includes a bracket 401 and a roller mechanism 408. The bracket 401 is fixedly mounted on the frame 1, which is located near the winding mechanism 2, the label feeding mechanism 6, and the film feeding mechanism 7. A second hydraulic telescopic mechanism 402 is fixedly mounted on the bracket 401. A movable plate 403 is fixedly mounted on the telescopic end of the second hydraulic telescopic mechanism 402. An elastic component and a detection component are fixedly mounted on the movable plate 403. The roller mechanism 408 is fixedly mounted on the elastic component. The roller mechanism 408 and the second hydraulic telescopic mechanism 402 operate using existing technology, and the elastic component enables... The roller mechanism 408 is attached to the label tape and protective film, thereby continuously tensioning the label tape and protective film. The force applied during tensioning is detected by the detection component, which facilitates the control of the force applied during tensioning. Based on the detection results, the second hydraulic telescopic mechanism 402 drives the movable plate 403 to move. The movable plate 403 drives the roller mechanism 408 to move through the elastic component, adjusting the position of the roller mechanism 408 so that the roller mechanism 408 can effectively tension and support the label tape and protective film, preventing the label tape and protective film from loosening and affecting the lamination effect.

[0034] like Figure 2 As shown, the elastic component includes a telescopic rod 404, which is fixedly installed on the movable plate 403. The telescopic end of the telescopic rod 404 is fixedly connected to the roller mechanism 408. A spring 405 is sleeved on the telescopic rod 404. The telescopic rod 404 and the spring 405 provide elastic support for the roller mechanism 408, so that the roller mechanism 408 continuously adheres to the label tape and the protective film, effectively supporting and tensioning the label tape and the protective film, and ensuring the support and tension effect.

[0035] like Figure 2 As shown, the detection assembly includes a second pressure sensing mechanism 406 and an elastic block 407. The second pressure sensing mechanism 406 is fixedly mounted on the movable plate 403, and the elastic block 407 is fixedly mounted on the roller mechanism 408. The elastic block 407 is connected to the second pressure sensing mechanism 406. The second pressure sensing mechanism 406 operates using existing technology. When the roller mechanism 408 tensions the label tape and protective film, the roller mechanism 408 applies a force to the second pressure sensing mechanism 406 through the elastic block 407. The tensioning force of the roller mechanism 408 is detected by the second pressure sensing mechanism 406, which facilitates the control of the tensioning force and ensures effective tensioning and coating effect.

[0036] like Figure 1 , Figure 8As shown, the cold air unit includes two cold air guide seats 501, which are fixedly installed on the frame 1. The cold air guide seats 501 are located between the winding mechanism 2 and the hot pressing unit. Air outlets 502 are arranged on the opposite sides of the two cold air guide seats 501. The cold air guide seats 501 are connected to an external cold air device. The external cold air device delivers cold air into the cold air guide seats 501 and sprays it out through the air outlets 502. The cold air sprayed from the air outlets 502 cools and lowers the temperature of the laminated label. At the same time, the temperature of the air in the air outlets 502 is controlled so that the cold air sprayed from the arranged air outlets 502 is different, thereby providing a step-by-step cooling and lowering of the laminated label to ensure the cooling effect of the label. At the same time, by gradually lowering the temperature, the thermal stress accumulation of the lamination is effectively reduced, ensuring the lamination effect.

[0037] Working principle: such as Figures 1-8 As shown, the label material is fed by the roller label feeding mechanism 6, the label material is guided by the guide roller 8, and the protective film is fed by the film feeding mechanism 7. The label material and the protective film pass between the elastic roller sleeve 308 on the upper roller 305 and the lower roller 307.

[0038] like Figures 3-7 As shown, the slide 303 is moved by the bidirectional lifting mechanism 302, and the slide 303 drives the two drive mechanisms 304 to move, adjusting the distance between the upper roller 305 and the lower roller 307. The upper roller 305 and the lower roller 307 heat and press the label material tape and protective film through the elastic roller sleeve 308.

[0039] like Figures 3-7 As shown, during the working process, the upper roller 305 supports the elastic roller sleeve 308 through the first hydraulic telescopic mechanism 309, the first pressure sensing mechanism 310, and the arc-shaped top plate 311. The first pressure sensing mechanism 310 detects the pressure applied by the elastic roller sleeve 308 to the contact point of the protective film in real time. During the film covering process, the first hydraulic telescopic mechanism 309 adjusts and moves the arc-shaped top plate 311 through the first pressure sensing mechanism 310, adjusting the supporting force applied by the arc-shaped top plate 311 to the elastic roller sleeve 308, thereby achieving self-balancing of zoned pressure during the film covering process.

[0040] like Figure 1 , Figure 8 As shown, the laminated label tape moves between two cold air guides 501. The external cold air device delivers cold air into the cold air guides 501 and sprays it out through the air outlet 502. The cold air sprayed out through the air outlet 502 cools and lowers the temperature of the laminated label. The winding mechanism 2 winds up the laminated label tape.

[0041] At the same time, such as Figure 1 , Figure 2 , Figure 8As shown, during the lamination process, the second hydraulic telescopic mechanism 402 drives the roller mechanism 408 to support the label tape and protective film via the movable plate 403 and the telescopic rod 404. The telescopic rod 404 and the spring 405 ensure that the roller mechanism 408 is continuously attached to the label tape and protective film. The roller mechanism 408 applies a force to the second pressure sensing mechanism 406 via the elastic block 407. The second pressure sensing mechanism 406 detects the tension force of the roller mechanism 408. When the second pressure sensing mechanism 406 detects an abnormal tension force, it drives the movable plate 403 to move via the second hydraulic telescopic mechanism 402. The movable plate 403 drives the roller mechanism 408 to move via the telescopic rod 404, adjusting the position of the roller mechanism 408 so that the roller mechanism 408 can effectively tension and support the label tape and protective film.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A laminating apparatus for label printing, characterized in that, The machine includes a frame (1), on which a winding mechanism (2), a tensioning unit, a cold air unit, a hot pressing unit, a guide roller (8), a label feeding mechanism (6), and a film feeding mechanism (7) are fixedly installed in sequence. The winding mechanism (2), the label feeding mechanism (6), and the film feeding mechanism (7) are located on both sides of the frame (1), and the label feeding mechanism (6) is located below the film feeding mechanism (7). The hot pressing unit includes a mounting frame (301) and a first guide seat (312). The mounting frame (301) is fixedly mounted on the frame (1). An adjustment component is fixedly mounted on the mounting frame (301). Two drive mechanisms (304) are fixedly mounted on the adjustment component. An upper roller (305) and a lower roller (307) are fixedly mounted on the output shafts of the two drive mechanisms (304), respectively. An elastic roller sleeve (308) is fixedly mounted on both the upper roller (305) and the lower roller (307). A first liquid is arranged on the upper roller (305). The first hydraulic telescopic mechanism (309) is equipped with a first pressure sensing mechanism (310) fixedly installed on the telescopic end of the first hydraulic telescopic mechanism (309). An arc-shaped top plate (311) is fixedly installed on the first pressure sensing mechanism (310). The arc-shaped top plate (311) is fixedly connected to the elastic roller sleeve (308). A heat-conducting component is fixedly installed inside the elastic roller sleeve (308). The first flow guide seat (312) is fixedly installed on the housing of the drive mechanism (304). The first flow guide seat (312) is connected to the first hydraulic telescopic mechanism (309).

2. The label printing laminating device according to claim 1, characterized in that: The heat-conducting component includes a second flow guide seat (313) and a flow guide hole (306). The second flow guide seat (313) is fixedly installed on the housing of the drive mechanism (304). The second flow guide seat (313) is rotatably connected to the upper roller (305) and the lower roller (307). The second flow guide seat (313) communicates with the flow guide hole (306). The flow guide hole (306) is disposed in the elastic roller sleeve (308) and communicates with the second flow guide seat (313).

3. The label printing laminating device according to claim 1, characterized in that: The adjustment assembly includes a bidirectional lifting mechanism (302), which is fixedly installed on the mounting frame (301). Slides (303) are fixedly installed at both ends of the bidirectional lifting mechanism (302), and the slides (303) are fixedly connected to the drive mechanism (304).

4. The label printing laminating device according to claim 1, characterized in that: The tensioning unit includes a bracket (401) and a roller mechanism (408). The bracket (401) is fixedly installed on the frame (1). The frame (1) is located near the winding mechanism (2), the label feeding mechanism (6), and the film feeding mechanism (7). A second hydraulic telescopic mechanism (402) is fixedly installed on the bracket (401). A movable plate (403) is fixedly installed on the telescopic end of the second hydraulic telescopic mechanism (402). An elastic component and a detection component are fixedly installed on the movable plate (403). The roller mechanism (408) is fixedly installed on the elastic component.

5. The label printing laminating apparatus according to claim 4, characterized in that: The elastic component includes a telescopic rod (404), which is fixedly installed on the movable plate (403). The telescopic end of the telescopic rod (404) is fixedly connected to the roller mechanism (408), and a spring (405) is sleeved on the telescopic rod (404).

6. The label printing laminating apparatus according to claim 4, characterized in that: The detection component includes a second pressure sensing mechanism (406) and an elastic block (407). The second pressure sensing mechanism (406) is fixedly mounted on the movable plate (403), and the elastic block (407) is fixedly mounted on the roller mechanism (408). The elastic block (407) is connected to the second pressure sensing mechanism (406).

7. The label printing laminating apparatus according to claim 1, characterized in that: The cold air unit includes two cold air guide seats (501), which are fixedly installed on the frame (1). The cold air guide seats (501) are located between the winding mechanism (2) and the hot pressing unit. Air outlets (502) are arranged on the opposite sides of the two cold air guide seats (501).

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