A pre-treatment structure for adhesive label production material

Abstract

This utility model discloses a pretreatment structure for self-adhesive label production materials, belonging to the field of self-adhesive label production technology. Its key technical features include a base, with a leveling mechanism and a cleaning mechanism on the top of the base. The leveling mechanism includes a support frame. This solves the problem that existing self-adhesive label substrate leveling pretreatment structures are often inconvenient for precisely adjusting the leveling pressure for substrates of different thicknesses. They typically use manual screw adjustment, which cannot quantify the leveling pressure and relies solely on operator experience. This can easily lead to insufficient pressure causing wrinkles or excessive pressure causing substrate stretching and deformation, making them inconvenient to use. Furthermore, existing leveling pretreatment structures often lack a cleaning mechanism, preventing the removal of dust, lint, and other impurities adsorbed by the substrate during leveling. These impurities enter subsequent processes with the substrate, easily leading to defects such as printing omissions and composite bubbles.

Description

Technical Field

[0001] This utility model relates to the field of self-adhesive label production technology, and in particular to a pretreatment structure for self-adhesive label production materials. Background Technology

[0002] Self-adhesive labels, also known as pressure-sensitive labels, are composite materials made of paper, film, or special materials as the face stock, coated with adhesive on the back, and with silicone-coated release paper as the backing paper. After processing such as printing and die-cutting, they become finished labels. In the production process of self-adhesive labels, the leveling and pre-treatment of the substrate (face stock) is a crucial step, as the leveling and pre-treatment effect directly affects the subsequent printing quality, adhesion, and forming stability of the labels.

[0003] Existing self-adhesive label substrate leveling and pre-treatment structures are often inconvenient to precisely adjust the leveling pressure for substrates of different thicknesses. They typically use manual screw adjustment, which cannot quantify the leveling pressure and relies solely on the operator's experience. This can easily lead to insufficient pressure resulting in wrinkles or excessive pressure causing substrate stretching and deformation. This makes them inconvenient to use. Furthermore, existing leveling and pre-treatment structures usually lack cleaning mechanisms, so dust, lint, and other impurities adsorbed by the substrate during the leveling process cannot be removed. These impurities enter subsequent processes with the substrate, easily leading to defects such as printing omissions and composite bubbles.

[0004] To address this, a pretreatment structure for self-adhesive label production materials is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pretreatment structure for self-adhesive label production materials. This structure solves the problem that existing self-adhesive label substrate leveling pretreatment structures are often inconvenient to precisely adjust the leveling pressure for substrates of different thicknesses. They typically use manual screw adjustment, which cannot quantify the leveling pressure and relies solely on the operator's experience. This can easily lead to insufficient pressure causing wrinkles or excessive pressure causing substrate stretching and deformation, making them inconvenient to use. Furthermore, existing leveling pretreatment structures often lack a cleaning mechanism, and dust, lint, and other impurities adsorbed by the substrate during the leveling process cannot be removed. These impurities enter subsequent processes with the substrate, easily leading to defects such as printing omissions and composite bubbles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pretreatment structure for self-adhesive label production materials, including a base, wherein a leveling mechanism and a cleaning mechanism are provided on the top of the base;

[0007] The leveling mechanism includes a support frame. Multiple lower leveling rollers are rotatably connected to the inner side of the support frame via bearing seats. A hydraulic cylinder is fixedly connected to the top of the support frame. The output rod of the hydraulic cylinder passes through the inner side of the support frame and is fixedly connected to an H-shaped plate. Pressure sensors are fixedly connected to the front and rear sides of the bottom of the H-shaped plate. A fixing plate is fixedly connected to the bottom of the four pressure sensors. Multiple upper leveling rollers that cooperate with the lower leveling rollers are rotatably connected to the bottom of the fixing plate via bearing seats.

[0008] Preferably, the cleaning mechanism includes a vacuum cleaner, the vacuum cleaner's suction port is connected to a suction pipe, the other end of the suction pipe is connected to a diverter pipe, both ends of the diverter pipe are connected to connecting pipes, the other ends of the two connecting pipes are connected to suction nozzles, and the two suction nozzles are respectively located at the top and bottom of the rear side of the support frame.

[0009] Preferably, a support plate is fixedly connected to the bottom of the vacuum cleaner, and the left side of the support plate is fixedly connected to the bottom of the right side of the support frame.

[0010] Preferably, both sides of the suction nozzle are fixedly connected to a fixing strip, and the fixing strip is fixedly connected to the support frame on the side closest to the support frame.

[0011] Preferably, the top of the support frame has a through hole for use with a hydraulic cylinder, and the surface of the output rod of the hydraulic cylinder is slidably connected to the inner wall of the through hole.

[0012] Preferably, limiting rods are fixedly connected to both sides of the top of the H-shaped plate, and the tops of the two limiting rods extend through to the top of the support frame. Sliding holes are opened on both sides of the top of the support frame to cooperate with the two limiting rods respectively, and the surface of the limiting rod is slidably connected to the inner wall of the sliding hole.

[0013] Preferably, an unwinding device is fixedly connected to the front side of the top of the base, and a winding device is fixedly connected to the rear side of the top of the base.

[0014] Preferably, a main controller is fixedly connected to the top right side of the support frame, and a display screen is provided on the top right side of the main controller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application, through the setting of a leveling mechanism, can perform leveling pretreatment on the substrate of self-adhesive labels, and can conveniently and precisely adjust the leveling pressure for substrates of different thicknesses, thereby bringing convenience to the leveling pretreatment work and ensuring the leveling quality.

[0017] 2. By setting up a cleaning mechanism, this application can remove dust, lint and other impurities adsorbed by the substrate during the leveling process, and can prevent impurities from entering subsequent processes and causing defects such as printing omissions and composite bubbles. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the pretreatment structure for self-adhesive label production materials of this utility model.

[0019] Figure 2 In this utility model Figure 1 A structural diagram from another perspective;

[0020] Figure 3 This is a structural diagram of the leveling mechanism in this utility model;

[0021] Figure 4 This is a structural diagram of the cleaning mechanism in this utility model from another perspective;

[0022] Figure 5 This is a structural diagram of the support frame in this utility model.

[0023] In the diagram: 1. Base; 2. Leveling mechanism; 21. Support frame; 22. Lower leveling roller; 23. Hydraulic cylinder; 24. H-shaped plate; 25. Pressure sensor; 26. Fixing plate; 27. Upper leveling roller; 3. Cleaning mechanism; 31. Vacuum cleaner; 32. Vacuum pipe; 33. Diverter pipe; 34. Connecting pipe; 35. Vacuum nozzle; 36. Support plate; 37. Fixing strip; 4. Through hole; 5. Limiting rod; 6. Sliding hole; 7. Unwinding device; 8. Rewinding device; 9. Main controller; 10. Display screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] A pretreatment structure for self-adhesive label production materials includes a base 1, with a leveling mechanism 2 and a cleaning mechanism 3 disposed on the top of the base 1;

[0027] The leveling mechanism 2 includes a support frame 21. Multiple lower leveling rollers 22 are rotatably connected to the inner side of the support frame 21 via bearing seats. A hydraulic cylinder 23 is fixedly connected to the top of the support frame 21. The output rod of the hydraulic cylinder 23 passes through the inner side of the support frame 21 and is fixedly connected to an H-shaped plate 24. Pressure sensors 25 are fixedly connected to the front and rear sides of the bottom of the H-shaped plate 24. A fixing plate 26 is fixedly connected to the bottom of the four pressure sensors 25. Multiple upper leveling rollers 27 that cooperate with the lower leveling rollers 22 are rotatably connected to the bottom of the fixing plate 26 via bearing seats.

[0028] In this embodiment: by setting up a base 1, a leveling mechanism 2, and a cleaning mechanism 3, the base 1 provides a supporting foundation for the entire device during use. The leveling mechanism 2 can perform leveling pretreatment on the substrate of the self-adhesive label, and can easily and precisely adjust the leveling pressure for substrates of different thicknesses, thus bringing convenience to the leveling pretreatment and ensuring leveling quality. The cleaning mechanism 3 can remove dust, lint, and other impurities adsorbed by the substrate during the leveling process, which can prevent impurities from entering subsequent processes and causing defects such as printing omissions and composite bubbles.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, the cleaning mechanism 3 includes a vacuum cleaner 31, the vacuum cleaner 31 has a vacuum tube 32 connected to its suction port, the other end of the vacuum tube 32 is connected to a diversion tube 33, the upper and lower ends of the diversion tube 33 are connected to connecting tubes 34, the other ends of the two connecting tubes 34 are connected to suction nozzles 35, and the two suction nozzles 35 are located at the top and bottom of the rear side of the support frame 21, respectively.

[0030] Specifically, such as Figure 1 , Figure 2 , Figure 4 As shown, a support plate 36 is fixedly connected to the bottom of the vacuum cleaner 31, and the left side of the support plate 36 is fixedly connected to the bottom of the right side of the support frame 21.

[0031] Specifically, such as Figure 2 , Figure 4 As shown, both sides of the vacuum nozzle 35 are fixedly connected with fixing strips 37, and the side of the fixing strip 37 closest to the support frame 21 is fixedly connected to the support frame 21.

[0032] In this embodiment: by setting up a vacuum cleaner 31, a vacuum pipe 32, a diverter pipe 33, a connecting pipe 34, a vacuum nozzle 35, a support plate 36, and a fixing strip 37, when in use, by starting the vacuum cleaner 31, the vacuum cleaner 31 generates negative pressure, which is transmitted through the vacuum pipe 32 to the diverter pipe 33. The diverter pipe 33 evenly distributes the negative pressure to the upper and lower connecting pipes 34, and finally transmits it to the two vacuum nozzles 35 on the rear side of the support frame 21. Then, the two vacuum nozzles 35 perform negative pressure adsorption on both sides of the leveled substrate, which can remove residual dust, lint, and other impurities on the surface of the substrate. The adsorbed impurities are then carried by the airflow into the detachable dust collection chamber of the vacuum cleaner 31, realizing simultaneous cleaning of the front and back sides of the substrate. This can prevent impurities from entering subsequent processes and causing defects such as printing omissions and composite bubbles. The support plate 36 can support and fix the vacuum cleaner 31, and the fixing strip 37 can support and fix the vacuum nozzles 35.

[0033] Specifically, such as Figure 5 As shown, the top of the support frame 21 has a through hole 4 for use with the hydraulic cylinder 23, and the surface of the output rod of the hydraulic cylinder 23 is slidably connected to the inner wall of the through hole 4.

[0034] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, limit rods 5 are fixedly connected to both sides of the top of the H-shaped plate 24. The tops of the two limit rods 5 extend through to the top of the support frame 21. Sliding holes 6 are provided on both sides of the top of the support frame 21, which are used to cooperate with the two limit rods 5 respectively. The surface of the limit rod 5 is slidably connected to the inner wall of the sliding hole 6.

[0035] In this embodiment: by providing a through hole 4, the output rod of the hydraulic cylinder 23 can pass through the support frame 21 for telescopic output; by providing a limiting rod 5, the H-shaped plate 24 can be guided and limited to prevent the H-shaped plate 24 from shaking; by providing a sliding hole 6, the limiting rod 5 can pass through the support frame 21 for up and down sliding.

[0036] Specifically, such as Figure 1 , Figure 2 As shown, an unwinding device 7 is fixedly connected to the front side of the top of the base 1, and a winding device 8 is fixedly connected to the rear side of the top of the base 1.

[0037] Specifically, such as Figure 1 , Figure 2 , Figure 3 As shown, a main controller 9 is fixedly connected to the top right side of the support frame 21, and a display screen 10 is installed on the top right side of the main controller 9.

[0038] In this embodiment: by setting up the unwinding device 7, the substrate of the self-adhesive label can be unwound during the leveling process; by setting up the rewinding device 8, the substrate after leveling can be rewound; by setting up the main controller 9, the entire device can be controlled to work together; and by setting up the display screen 10, parameters such as the operation of the device and the leveling pressure can be displayed.

[0039] Working Principle: In use, the self-adhesive label substrate roll to be processed is first installed onto the unwinding device 7 on the front top of the base 1. Then, the free end of the substrate is pulled through the gap between the lower leveling roller 22 and the upper leveling roller 27 in the leveling mechanism 2 and the area between the upper and lower suction nozzles 35 in the cleaning mechanism 3, finally fixed onto the rewinding device 8 on the rear top of the base 1. Then, the unwinding device 7 and the rewinding device 8 are started by the main controller 9, causing them to operate synchronously under the linkage control of the main controller 9. This ensures stable delivery of the substrate at a set speed, preventing stretching or accumulation during delivery. Simultaneously, the main controller 9 sends commands to the hydraulic cylinder 23 of the leveling mechanism 2, causing the hydraulic cylinder 23 to... The lever pushes the H-shaped plate 24 downwards. The limiting rods 5 on both sides of the top of the H-shaped plate 24 slide synchronously along the sliding holes 6 on the top of the support frame 21, ensuring that the H-shaped plate 24 does not deviate during lifting and lowering, and ensuring that the upper leveling roller 27 and the lower leveling roller 22 are always vertically aligned. As the H-shaped plate 24 descends, the upper leveling roller 27 at the bottom of the fixed plate 26 gradually approaches the lower leveling roller 22 and comes into contact with the substrate. At this time, the pressure sensors 25 at the four corners of the bottom of the H-shaped plate 24 detect the rolling pressure of the upper leveling roller 27 on the substrate in real time and feed the pressure signal back to the main controller 9. The pressure value can be displayed on the display screen 10 of the main controller 9. When the pressure reaches the set target value, the hydraulic cylinder 23 is immediately controlled to stop moving, thus completing the precise adjustment of the leveling pressure. At this time, the lower leveling roller 22 provides stable support for the substrate, and the upper leveling roller 27 works in conjunction with the lower leveling roller 22 to continuously roll and level the substrate during transport. Then, when the substrate is leveled and enters the cleaning process, the vacuum cleaner 31 is started by the main controller 9, which generates negative pressure that is transmitted through the suction pipe 32 to the diversion pipe 33. The diversion pipe 33 evenly distributes the negative pressure to the upper and lower connecting pipes 34, and finally to the two suction nozzles 35 on the rear side of the support frame 21. Then, the two suction nozzles 35 perform negative pressure adsorption on both sides of the leveled substrate, which removes residual dust, lint and other impurities from the surface of the substrate. The adsorbed impurities are then carried by the airflow into the detachable dust collection chamber of the vacuum cleaner 31, achieving cleaning of both sides of the substrate. Synchronous cleaning prevents impurities from entering subsequent processes and causing defects such as printing omissions and composite bubbles. After leveling and cleaning, the substrate is conveyed to the winding equipment 8. The winding equipment 8 winds the pre-treated clean and leveled substrate into a roll at a speed matched with the unwinding equipment 7, forming a qualified pre-treated substrate roll, ready for subsequent printing, gluing, and lamination processes. Throughout the pre-treatment process, the display screen 10 continuously displays key parameters such as leveling pressure, conveying speed, and the working status of the vacuum cleaner 31. If local fluctuations in the substrate thickness cause the pressure sensor 25 to detect pressure deviation, the output of the hydraulic cylinder 23 can be finely adjusted in real time by the main controller 9 to ensure that the leveling pressure is stable within the set range and to ensure the consistency of pre-treatment quality.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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. A structure for pre-treating self-adhesive label production material, comprising a base (1), characterised in that: The base (1) is provided with a leveling mechanism (2) and a cleaning mechanism (3) on its top; The leveling mechanism (2) includes a support frame (21). Multiple lower leveling rollers (22) are rotatably connected to the inner side of the support frame (21) via bearing seats. A hydraulic cylinder (23) is fixedly connected to the top of the support frame (21). The output rod of the hydraulic cylinder (23) passes through the inner side of the support frame (21) and is fixedly connected to an H-shaped plate (24). Pressure sensors (25) are fixedly connected to the front and rear sides of the bottom sides of the H-shaped plate (24). A fixing plate (26) is fixedly connected to the bottom of the four pressure sensors (25). Multiple upper leveling rollers (27) that cooperate with the lower leveling rollers (22) are rotatably connected to the bottom of the fixing plate (26) via bearing seats.

2. A pre-treatment structure for a material for the production of self-adhesive labels according to claim 1, characterized in that: The cleaning mechanism (3) includes a vacuum cleaner (31), the vacuum cleaner (31) has a suction port connected to a suction pipe (32), the other end of the suction pipe (32) is connected to a diversion pipe (33), the upper and lower ends of the diversion pipe (33) are connected to connecting pipes (34), the other ends of the two connecting pipes (34) are connected to suction nozzles (35), and the two suction nozzles (35) are located at the top and bottom of the rear side of the support frame (21), respectively.

3. A pre-treatment structure for a material for the production of self-adhesive labels according to claim 2, characterized in that: The bottom of the vacuum cleaner (31) is fixedly connected to a support plate (36), and the left side of the support plate (36) is fixedly connected to the bottom right side of the support frame (21).

4. The pre-treatment structure for a material for producing a self-adhesive label according to claim 2, characterized in that: Both sides of the suction nozzle (35) are fixedly connected with fixing strips (37), and the side of the fixing strip (37) closest to the support frame (21) is fixedly connected to the support frame (21).

5. The pre-treatment structure for a material for producing a self-adhesive label according to claim 1, characterized in that: The top of the support frame (21) is provided with a through hole (4) for use with the hydraulic cylinder (23), and the surface of the output rod of the hydraulic cylinder (23) is slidably connected to the inner wall of the through hole (4).

6. The pre-treatment structure for a material for producing a self-adhesive label according to claim 1, characterized in that: Limiting rods (5) are fixedly connected to both sides of the top of the H-shaped plate (24). The top of the two limiting rods (5) extends through to the top of the support frame (21). Sliding holes (6) are opened on both sides of the top of the support frame (21) respectively to cooperate with the two limiting rods (5). The surface of the limiting rod (5) is slidably connected to the inner wall of the sliding hole (6).

7. The pre-treatment structure for a material for producing a self-adhesive label according to claim 1, characterized in that: The base (1) is fixedly connected to the front side of the top with an unwinding device (7), and the base (1) is fixedly connected to the rear side of the top with a winding device (8).

8. The pre-treatment structure for a material for producing a self-adhesive label according to claim 1, characterized in that: A main controller (9) is fixedly connected to the top right side of the support frame (21), and a display screen (10) is provided on the top right side of the main controller (9).

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