Environment-friendly label adhesive coating device

By using a circulating pump and scraper design in an environmentally friendly label adhesive coating device, the problems of uneven coating and glue waste are solved, achieving uniform coating and recycling of glue, thus improving label quality and production efficiency.

CN224293738UActive Publication Date: 2026-05-29WUXI QUNHUAN PACKING MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI QUNHUAN PACKING MATERIAL CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-29

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    Figure CN224293738U_ABST
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Abstract

The utility model discloses an environmental protection type label back adhesive coating device relates to label coating device technical field, including the reel, the top fixed mounting of reel has the backflow pool, and the top of backflow pool is equipped with the label roll. A kind of environmental protection type label back adhesive coating device of the utility model, by circulation pump, the adhesive inside glue pool is sprayed from fixed nozzle by spraying pipe, the back of label roll is coated with glue, and glue on the back of label roll is coated by scraper, glue is evenly distributed on the back of label roll, scraper is above glue pool, after glue is scraped flat by scraper, extra glue will flow back and drop to the inside of glue pool by scraper, realize the recovery of glue, reduce the waste of glue, control the distance between scraper and label roll, realize the adjustment of glue thickness on the back of label roll, push down glue on the surface of scraper from the surface of scraper, realize the cleaning of scraper, and then it is convenient for scraper to smear glue evenly.
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Description

Technical Field

[0001] This utility model relates to the technical field of label coating equipment, and more specifically, to an environmentally friendly label adhesive coating equipment. Background Technology

[0002] The label industry began in the 1960s, initially primarily used in libraries and logistics. Today, common labels such as pharmaceutical labels, food labels, wine labels, battery labels, outer carton labels, shampoo labels, barcode labels, and temporary labels for semi-finished products are typically made of paper or film bonded together with self-adhesive adhesive. Self-adhesive labels offer advantages such as no need for glue, paste, or water, no pollution, and time-saving application. They have a wide range of applications and are convenient and quick. Self-adhesive is a composite material consisting of paper, film, or other special materials as the face stock, an adhesive coating on the back, and a silicone-coated release liner.

[0003] Existing equipment has poor coating precision, which can easily lead to problems such as uneven adhesive application and inconsistent coating thickness. In addition, excess self-adhesive cannot be recycled during use, resulting in waste of self-adhesive, increased costs, and affecting label adhesion performance. Utility Model Content

[0004] The main purpose of this invention is to provide an environmentally friendly label adhesive coating device, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An environmentally friendly label adhesive coating device includes a take-up frame, a return tank fixedly installed on the top of the take-up frame, and a label roll sleeved on the top of the return tank.

[0007] The return pool includes an adhesive pool. A guide shaft is rotatably mounted on the upper part of the adhesive pool. A first fixing frame is fixedly mounted on the right side of the top of the adhesive pool. A first guide roller is rotatably mounted on the upper part of the first fixing frame. A cleaning component is fixedly mounted on the left side of the top of the adhesive pool. A fixed nozzle is fixedly mounted inside the first fixing frame. A circulation pump is fixedly mounted on the right side of the adhesive pool. A spray pipe is fixedly mounted on the top of the circulation pump. One end of the spray pipe is fixedly connected to the fixed nozzle.

[0008] Preferably, the winding rack includes a base plate, a limit frame is fixedly installed at the right end of the top of the base plate, a leveling shaft is rotatably installed at the top of the limit frame, a support frame is fixedly installed at the left end of the top of the base plate, a winding motor is fixedly installed on the side of the support frame, a winding shaft is fixedly installed at the output end of the winding motor, the winding shaft is rotatably installed inside the support frame, one end of the label roll is wound and connected to the outer surface of the winding shaft, and the limit frame and the support frame are respectively located on both sides of the return pool.

[0009] Preferably, the cleaning assembly includes a second fixed frame, a second guide roller is rotatably mounted on the top of the second fixed frame, a rotating motor is fixedly mounted on the side of the second fixed frame, a rotating screw is fixedly mounted on the output end of the rotating motor, the rotating screw is rotatably mounted inside the second fixed frame, a guide rod is fixedly mounted on the upper end of the second fixed frame, a movable frame is threaded onto the outer surface of the rotating screw, and the top of the movable frame is movably sleeved on the outer surface of the guide rod.

[0010] Preferably, a limiting rod is fixedly installed at the lower end of the movable frame, a movable rod is movably sleeved on the outer surface of the limiting rod, a sliding groove is provided inside the movable rod, the sliding groove is movably sleeved on the outer surface of the limiting rod, and a silicone sleeve is rotatably installed at the lower end of the movable rod.

[0011] Preferably, a rotating rod is rotatably mounted on the lower end of the second fixing frame, a transmission gear is fixedly sleeved on one end of the rotating rod, a sliding groove is fixedly mounted on the side of the second fixing frame, a movable groove is opened at one end of the sliding groove, a movable rack is slidably mounted inside the sliding groove, a sliding block is fixedly mounted on the top of the movable rack, the sliding block is slidably mounted inside the movable groove, an adjusting screw is rotatably mounted on the top of the sliding groove, a rotating knob is fixedly connected to one end of the adjusting screw, the sliding block is threaded onto the outer surface of the adjusting screw, the outer surface of the transmission gear meshes with the bottom of the movable rack, a scraper is fixedly sleeved on the outer surface of the rotating rod, and a silicone sleeve is slidably mounted on the outer surface of the scraper.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Using a circulating pump, the self-adhesive in the glue tank is sprayed out from the fixed nozzle through the spray pipe, so that the back of the label roll is coated with glue. The glue is then spread evenly on the back of the label roll by a scraper.

[0014] 2. The scraper is positioned above the glue pool. After the scraper smooths the glue, excess glue will flow back through the scraper and drip into the inside of the glue pool, thus recycling the glue and reducing waste.

[0015] 3. By rotating the knob, the adjusting screw is rotated, which in turn controls the movement of the movable rack inside the sliding groove, adjusts the rotation of the transmission gear, and causes the rotating rod to drive the scraper to rotate, thereby controlling the distance between the scraper and the label roll, and thus adjusting the thickness of the adhesive on the back of the label roll.

[0016] 4. The movable frame slides on the outer surface of the rotating screw, and the limit rod pushes the movable rod to make the silicone sleeve slide on the outer surface of the scraper, pushing the glue on the scraper off the surface of the scraper, thus cleaning the scraper and making it easier for the scraper to apply the glue evenly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the winding rack structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the reflux tank structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the scraper structure of this utility model.

[0022] The attached diagram is labeled as follows: 1. Rewind rack; 2. Return tank; 3. Label roll; 11. Base plate; 12. Limiting frame; 13. Leveling shaft; 14. Support frame; 15. Rewind motor; 16. Rewind shaft; 21. Glue tank; 22. Guide shaft; 23. First fixing frame; 24. First guide roller; 25. Circulation pump; 26. Spray pipe; 27. Fixed nozzle; 28. Cleaning assembly; 281. Second fixing frame; 282. Second... 283. Guide roller; 284. Guide rod; 285. Rotating motor; 286. Rotating screw; 287. Moving frame; 288. Limiting rod; 289. Rotating rod; 280. Transmission gear; 2810. Scraper; 2811. Silicone sleeve; 2812. Movable rod; 2813. Sliding groove; 2814. Movable groove; 2815. Movable rack; 2816. Sliding block; 2817. Adjusting screw; 2818. Rotating knob. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] As attached Figure 1 To be continued Figure 5As shown, an embodiment of this utility model provides an environmentally friendly label adhesive coating device, including a take-up frame 1, a return tank 2 fixedly installed on the top of the take-up frame 1, and a label roll 3 sleeved on the top of the return tank 2.

[0025] like Figure 3 As shown, the return tank 2 includes an adhesive tank 21. A guide shaft 22 is rotatably mounted on the upper end of the adhesive tank 21. A first fixing frame 23 is fixedly mounted on the right end of the top of the adhesive tank 21. A first guide roller 24 is rotatably mounted on the upper end of the first fixing frame 23. A cleaning assembly 28 is fixedly mounted on the left end of the top of the adhesive tank 21. A fixed nozzle 27 is fixedly mounted inside the first fixing frame 23. A circulation pump 25 is fixedly mounted on the right side of the adhesive tank 21. A spray pipe 26 is fixedly mounted on the top of the circulation pump 25. One end of the spray pipe 26 is fixedly connected to the fixed nozzle 27.

[0026] Using the circulation pump 25, the self-adhesive inside the glue tank 21 is sprayed out from the fixed nozzle 27 through the spray pipe 26, so that the back of the label roll 3 is coated with glue, and the glue on the back of the label roll 3 is evenly distributed by the scraper 2810.

[0027] The scraper 2810 is located above the glue pool 21. After the scraper 2810 smooths the glue, the excess glue will flow back through the scraper 2810 and drip into the inside of the glue pool 21, thus realizing the recycling of glue and reducing glue waste.

[0028] like Figure 2 As shown, the take-up frame 1 includes a base plate 11. A limit frame 12 is fixedly installed on the right end of the top of the base plate 11. A leveling shaft 13 is rotatably installed on the top of the limit frame 12. A support frame 14 is fixedly installed on the left end of the top of the base plate 11. A take-up motor 15 is fixedly installed on the side of the support frame 14. A take-up shaft 16 is fixedly installed at the output end of the take-up motor 15. The take-up shaft 16 is rotatably installed inside the support frame 14. One end of the label roll 3 is wound and connected to the outer surface of the take-up shaft 16. The limit frame 12 and the support frame 14 are located on both sides of the return pool 2.

[0029] like Figures 4-5 As shown, the cleaning assembly 28 includes a second fixed frame 281, a second guide roller 282 rotatably mounted on the top of the second fixed frame 281, a rotating motor 284 fixedly mounted on the side of the second fixed frame 281, a rotating screw 285 fixedly mounted on the output end of the rotating motor 284, the rotating screw 285 rotatably mounted inside the second fixed frame 281, a guide rod 283 fixedly mounted on the upper end of the second fixed frame 281, a movable frame 286 threadedly mounted on the outer surface of the rotating screw 285, and the top of the movable frame 286 movably sleeved on the outer surface of the guide rod 283.

[0030] like Figure 2As shown, a limiting rod 287 is fixedly installed at the lower end of the movable frame 286. A movable rod 2812 is movably sleeved on the outer surface of the limiting rod 287. A sliding groove 2813 is provided inside the movable rod 2812. The sliding groove 2813 is movably sleeved on the outer surface of the limiting rod 287. A silicone sleeve 2811 is rotatably installed at the lower end of the movable rod 2812.

[0031] The second fixed frame 281 has a rotating rod 288 rotatably mounted on its lower end. A transmission gear 289 is fixedly sleeved on one end of the rotating rod 288. A sliding groove 2813 is fixedly mounted on the side of the second fixed frame 281. A movable groove 2814 is opened at one end of the sliding groove 2813. A movable rack 2815 is slidably mounted inside the sliding groove 2813. A sliding block 2816 is fixedly mounted on the top of the movable rack 2815. The sliding block 2816 is slidably mounted inside the movable groove 2814. An adjusting screw 2817 is rotatably mounted on the top of the sliding groove 2813. A rotating knob 2818 is fixedly connected to one end of the adjusting screw 2817. The sliding block 2816 is threaded onto the outer surface of the adjusting screw 2817. The outer surface of the transmission gear 289 meshes with the bottom of the movable rack 2815. A scraper 2810 is fixedly sleeved on the outer surface of the rotating rod 288. A silicone sleeve 2811 is slidably mounted on the outer surface of the scraper 2810.

[0032] By rotating the rotary knob 2818, the adjusting screw 2817 is rotated, which in turn controls the movable rack 2815 to move inside the sliding groove 2813, adjusts the rotation of the transmission gear 289, and causes the rotating rod 288 to drive the scraper 2810 to rotate, thereby controlling the distance between the scraper 2810 and the label roll 3, and realizing the adjustment of the adhesive thickness on the back of the label roll 3.

[0033] By setting the movable rod 2812 and the sliding groove 2813, when the moving frame 286 moves on the outer surface of the rotating screw 285, the movable rod 2812 is limited by the limiting rod 287. While the moving frame 286 drives the silicone sleeve 2811 to move through the movable rod 2812, the rotation of the scraper 2810 will not be affected.

[0034] The working process of this utility model is as follows:

[0035] In use, the label roll 3 passes through the inside of the flattening shaft 13, the outer surface of the first guide roller 24 and the bottom of the guide shaft 22, and is wound around the outer surface of the take-up shaft 16 by the second guide roller 282. The take-up motor 15 controls the take-up shaft 16 to take up the label roll 3. The circulation pump 25 sprays the self-adhesive inside the glue tank 21 through the spray pipe 26 from the fixed nozzle 27 to apply glue to the back of the label roll 3. The glue on the back of the label roll 3 is then evenly distributed by the scraper 2810. The scraper 2810 is above the glue tank 21. After the scraper 2810 flattens the glue, the excess glue will flow back through the scraper 2810 and drip into the glue tank 21, realizing the recycling of glue and reducing glue waste.

[0036] After the back of the label is coated, the rotating motor 284 controls the rotating screw 285 to rotate. At this time, the moving frame 286 slides on the outer surface of the rotating screw 285. The moving frame 286 drives the limiting rod 287 to move. The limiting rod 287 pushes the movable rod 2812 to drive the silicone sleeve 2811 to slide on the outer surface of the scraper 2810. The sliding groove 2813 slides on the outer surface of the limiting rod 287, pushing the glue on the scraper 2810 off the surface of the scraper 2810, thus cleaning the scraper 2810 and making it easier for the scraper 2810 to apply the glue evenly.

[0037] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly label adhesive coating device, comprising a winding rack (1), characterized in that: A return tank (2) is fixedly installed on the top of the winding rack (1), and a label roll (3) is sleeved on the top of the return tank (2); The return pool (2) includes an adhesive pool (21). A guide shaft (22) is rotatably installed at the upper end of the adhesive pool (21). A first fixing frame (23) is fixedly installed at the right end of the top of the adhesive pool (21). A first guide roller (24) is rotatably installed at the upper end of the first fixing frame (23). A cleaning component (28) is fixedly installed at the left end of the top of the adhesive pool (21). A fixed nozzle (27) is fixedly installed inside the first fixing frame (23). A circulation pump (25) is fixedly installed on the right side of the adhesive pool (21). A spray pipe (26) is fixedly installed on the top of the circulation pump (25). One end of the spray pipe (26) is fixedly connected to the fixed nozzle (27).

2. The environmentally friendly label adhesive coating device according to claim 1, characterized in that: The winding rack (1) includes a base plate (11), a limit frame (12) is fixedly installed on the right end of the top of the base plate (11), a leveling shaft (13) is rotatably installed on the top of the limit frame (12), a support frame (14) is fixedly installed on the left end of the top of the base plate (11), a winding motor (15) is fixedly installed on the side of the support frame (14), a winding shaft (16) is fixedly installed at the output end of the winding motor (15), the winding shaft (16) is rotatably installed inside the support frame (14), one end of the label roll (3) is wound and connected to the outer surface of the winding shaft (16), and the limit frame (12) and the support frame (14) are located on both sides of the return pool (2).

3. The environmentally friendly label adhesive coating device according to claim 1, characterized in that: The cleaning assembly (28) includes a second fixed frame (281), a second guide roller (282) is rotatably mounted on the top of the second fixed frame (281), a rotating motor (284) is fixedly mounted on the side of the second fixed frame (281), a rotating screw (285) is fixedly mounted on the output end of the rotating motor (284), the rotating screw (285) is rotatably mounted inside the second fixed frame (281), a guide rod (283) is fixedly mounted on the upper end of the second fixed frame (281), a movable frame (286) is threaded onto the outer surface of the rotating screw (285), and the top of the movable frame (286) is movably sleeved on the outer surface of the guide rod (283).

4. The environmentally friendly label adhesive coating device according to claim 3, characterized in that: A limiting rod (287) is fixedly installed at the lower end of the movable frame (286). A movable rod (2812) is movably sleeved on the outer surface of the limiting rod (287). A sliding groove (2813) is opened inside the movable rod (2812). The sliding groove (2813) is movably sleeved on the outer surface of the limiting rod (287). A silicone sleeve (2811) is rotatably installed at the lower end of the movable rod (2812).

5. The environmentally friendly label adhesive coating device according to claim 4, characterized in that: A rotating rod (288) is rotatably mounted on the lower end of the second fixed frame (281). A transmission gear (289) is fixedly sleeved on one end of the rotating rod (288). A sliding groove (2813) is fixedly mounted on the side of the second fixed frame (281). A movable groove (2814) is opened at one end of the sliding groove (2813). A movable rack (2815) is slidably mounted inside the sliding groove (2813). A sliding block (2816) is fixedly mounted on the top of the movable rack (2815). The sliding block (2816) is slidably mounted on the movable rack. Inside the groove (2814), an adjusting screw (2817) is rotatably mounted on the top of the sliding groove (2813). One end of the adjusting screw (2817) is fixedly connected to a rotating knob (2818). The sliding block (2816) is threaded onto the outer surface of the adjusting screw (2817). The outer surface of the transmission gear (289) meshes with the bottom of the movable rack (2815). A scraper (2810) is fixedly sleeved on the outer surface of the rotating rod (288). The silicone sleeve (2811) is slidably mounted on the outer surface of the scraper (2810).