A drying device for self-adhesive printed labels

Abstract

This application discloses a drying device for self-adhesive printed labels, relating to the field of self-adhesive label printing technology. It includes a frame, with a conveyor belt for transporting printed label paper at one end of the frame. The frame is equipped with a drive unit for rotating the conveyor belt. A drying chamber is positioned above the frame near the conveyor belt. A connecting groove is provided on the side wall of the drying chamber for the printed label paper to pass through. A heating plate is slidably disposed inside the drying chamber along its vertical direction. The printed label paper enters the drying chamber through the connecting groove on the side wall, where it is heated. Most of the heat generated by the heating plate is located within the drying chamber, which increases the drying speed of subsequent printed label paper entering the chamber. Simultaneously, the height of the heating plate in the drying chamber can be adjusted to avoid uneven ink drying caused by the heating plate being too close or too far from the printed label paper, thereby improving the production efficiency of the printed label paper.

Description

Technical Field

[0001] This application relates to the field of self-adhesive label printing technology, and in particular to a drying device for self-adhesive printed labels. Background Technology

[0002] Self-adhesive labels offer advantages over traditional labels, such as eliminating the need for glue, paste, and water, resulting in no pollution and saving labeling time. They have a wide range of applications and are convenient and quick to use. Self-adhesive labels are a type of material, also called self-adhesive label material. They are composite materials made of paper, film, or other 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.

[0003] When printing self-adhesive labels, drying equipment is needed to dry the ink on the printing paper. After the label surface is dried by using the drying component, it is rolled up and put into normal use.

[0004] Regarding the aforementioned technologies, the inventors believe that the current method involves exposing the printed label paper to the outside for drying. The drying components require a long drying time for the printed label paper, and the drying distance cannot be adjusted according to actual needs. This easily leads to uneven drying of the self-adhesive printed label paper, requiring repeated drying and reducing production efficiency. Utility Model Content

[0005] The purpose of this application is to provide a drying device for self-adhesive printed labels, in order to improve the problem that when drying printed label paper is exposed to the outside, the drying components need to dry the printed label paper for a long time, and the drying distance cannot be adjusted according to actual needs, which easily leads to uneven drying of self-adhesive printed label paper, requiring repeated drying and reducing production efficiency.

[0006] This application provides a drying device for self-adhesive printed labels, which adopts the following technical solution: A drying device for self-adhesive printed labels includes a frame, a conveyor belt for conveying printed label paper is provided at one end of the frame, a drive component for driving the conveyor belt to rotate is provided on the frame, a drying chamber is provided above the frame near the conveyor belt, a connecting groove for the printed label paper to pass through is provided on the side wall of the drying chamber, a heating plate is slidably arranged inside the drying chamber along the vertical direction of the drying chamber, and a roller for winding the dried printed label paper is rotatably arranged at the end of the frame away from the conveyor belt, and a drive component for driving the roller to rotate is provided at one end of the roller.

[0007] By adopting the above technical solution, a drying box is set at one end of the conveyor belt, allowing the printed label paper on the conveyor belt to enter the drying box through the connecting groove on the side wall of the drying box. A heating plate is slidably installed inside the drying box along the vertical direction to heat the printed label paper located inside the drying box. After the heat generated by the heating plate dries the printed label paper, most of it remains in the drying box, which can increase the drying speed of the printed label paper that subsequently enters the drying box. At the same time, the height of the heating plate in the drying box can be adjusted to avoid the heating plate being too close or too far from the printed label paper, which would cause uneven drying of the ink on the printed label paper and improve the production efficiency of the printed label paper. The second drive unit drives the winding roller to rotate and rewind the dried printed label paper.

[0008] Optionally, a fan is provided on the outside of the drying chamber, and the fan is connected to the drying chamber by a flexible air supply hose corresponding to the heating plate. A connecting chamber connected to the flexible air supply hose is provided on the side of the heating plate away from the printed label paper.

[0009] By adopting the above technical solution, a fan located outside the drying chamber delivers airflow into the drying chamber through a flexible air supply hose. The airflow enters the connecting chamber through the flexible air supply hose and is heated by a heating plate connected to the connecting chamber. Then, it is blown onto the printed label paper located in the drying chamber to quickly dry the ink on the printed label paper, thereby improving the drying efficiency of the ink on the printed label paper.

[0010] Optionally, the inner wall of the drying oven is provided with mounting brackets on both sides of the heating plate. The mounting brackets are provided with a sliding groove on the side near the heating plate. The two sides of the connecting chamber are slidably connected to the inner wall of the sliding groove. A screw is rotatably provided on the inner wall of the sliding groove along the length of the sliding groove. The screw is threadedly connected to the part of the connecting chamber located in the sliding groove. A driving component three for driving the screw to rotate is provided on the outside of the drying oven.

[0011] By adopting the above technical solution, the screws located in the slide groove on the mounting frame are driven synchronously by the three driving components on the outside of the drying chamber, so that the connecting chamber moves along the length of the slide groove, thereby adjusting the position of the heating plate connected to the connecting chamber, so as to avoid the heating plate being too close or too far from the printed label paper, which would affect the drying efficiency of the printed label paper.

[0012] Optionally, the heating plate is provided with a plurality of heating coils corresponding to the connecting chamber.

[0013] By adopting the above technical solution, a heating coil is installed in the heating plate, and the heating coil rapidly heats the airflow blown out through the connecting chamber, so that the airflow temperature in the drying chamber rises rapidly, which facilitates the drying of the ink on the printed label paper located inside the drying chamber.

[0014] Optionally, a ventilation plate is provided on the side of the heating plate near the printed label paper, and the ventilation plate is provided with several ventilation slots.

[0015] By adopting the above technical solution, a ventilation plate is installed on the side of the heating plate close to the printing label paper. Several ventilation slots on the ventilation plate guide the hot airflow heated by the heating plate, so that the hot airflow directly blows the printing label paper and dries the ink on the printing label paper.

[0016] Optionally, the inner wall of the drying chamber is provided with several rotating rollers located below the printed label paper, and the rotating rollers are in contact with one side of the printed label paper.

[0017] By adopting the above technical solution, several rotating rollers located below the printed label paper and rotating on the inner wall of the drying chamber support the printed label paper, minimizing the possibility that the printed label paper may fall downwards from the drying chamber and break when the hot air blows it.

[0018] Optionally, an air outlet pipe is provided through the inner wall of the drying chamber below the heating plate, and a drying chamber is connected to the side of the air outlet pipe away from the drying chamber. A ventilation pipe is provided between the drying chamber and the fan.

[0019] By adopting the above technical solution, the air in the drying chamber flows to the drying chamber through the air outlet pipe. The drying chamber dries and filters the steam generated by drying the printed label paper in the air. Then, the air is sent back into the drying chamber by the fan through the ventilation pipe to keep the air inside the drying chamber dry.

[0020] Optionally, a connecting frame is provided on the side of the frame near the roller, and a rotating rod is rotatably provided on the upper and lower sides of the dried printed label paper on the connecting frame, with the circumferential sidewall of the rotating rod in contact with the printed label paper.

[0021] By adopting the above technical solution, after the printed label paper is dried in the drying oven, it is held by two rotating rods on the connecting frame. When the second drive unit drives the winding roller to rewind the dried printed label paper, the rotating rods rotate with the movement of the printed label paper to flatten it and reduce the possibility of wrinkles appearing when the printed label paper is rewinding.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. A heating plate is slidably installed inside the drying oven along the vertical direction to heat the printed label paper inside the drying oven. After the heat generated by the heating plate dries the printed label paper, most of it remains in the drying oven, which can increase the drying speed of the printed label paper that subsequently enters the drying oven. At the same time, the height of the heating plate in the drying oven can be adjusted to avoid the heating plate being too close or too far from the printed label paper, which would cause uneven drying of the ink on the printed label paper and improve the production efficiency of printed label paper. 2. Install heating coils in the heating plate to rapidly heat the airflow, causing the airflow temperature inside the drying chamber to rise rapidly. Install a ventilation plate on the side of the heating plate close to the printed label paper. Several ventilation slots on the ventilation plate guide the hot airflow heated by the heating plate, allowing the hot airflow to directly blow on the printed label paper, which facilitates the drying of the ink on the printed label paper inside the drying chamber. 3. After the printed label paper is dried in the drying oven, it is held by two rotating rods on the connecting frame. When the drive unit drives the roller to rewind the dried printed label paper, the rotating rods rotate with the movement of the printed label paper to flatten it and reduce the possibility of wrinkles during rewinding. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of a drying device for self-adhesive printed labels; Figure 2 This is a partial cross-sectional view of the drying equipment used for self-adhesive label printing in the embodiment.

[0024] In the diagram, 1. Frame; 11. Conveyor belt; 12. Drive component one; 13. Printed label paper; 14. Connecting frame; 141. Rotating rod; 2. Drying oven; 21. Connecting groove; 22. Fan; 221. Air supply hose; 23. Connecting chamber; 24. Mounting frame; 241. Slide groove; 242. Screw; 243. Drive component three; 25. Rotating roller; 26. Air outlet pipe; 3. Heating plate; 31. Heating coil; 32. Ventilation plate; 321. Ventilation groove; 4. Roller; 41. Drive component two; 5. Drying oven; 51. Ventilation pipe. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0026] A drying device for self-adhesive printed labels, as described in the reference. Figure 1The system includes a frame 1, which is assembled with a conveyor belt 11 at one end. The printed label paper 13 is laid flat on the conveyor belt 11 with the ink side facing up. The conveyor belt 11 includes a rotating shaft that is rotatably connected to the frame 1 by bearings and a conveyor belt mounted on the rotating shaft. A drive unit 12 is fixed to the frame 1 by bolts. The drive end of the servo motor, which is electrically connected to the power supply and serves as the drive unit 12, drives the conveyor belt 11 to move by gear meshing. A drying chamber 2 is fixed to the end of the frame 1 near the conveyor belt 11 by bolts. A connecting groove 21 is provided on the side wall of the drying chamber 2 to allow the printed label paper 13 to pass through, so that the printed label paper 13 passes through the drying chamber 2 for drying.

[0027] Reference Figure 2 The mounting bracket 24 is bolted to both sides of the inner wall of the drying oven 2, so that the mounting bracket 24 is installed along the vertical direction of the drying oven 2. A sliding groove 241 is opened in the length direction of the mounting bracket 24, and the two ends of the connecting chamber 23 are slidably connected to the sliding groove 241. The inner wall of the sliding groove 241 is rotatably connected to the screw 242 through the bearing, and the part of the connecting chamber 23 located in the sliding groove 241 is threadedly connected to the screw 242. A driving component 243 is bolted to the outside of the drying oven 2. The driving component 243 is electrically connected to the power supply. The drive motor is connected to the drive end of the drive component 243 and the screw 242 passing through the side wall of the drying chamber 2 is connected and fixed by a coupling. The drive components 243 at both ends of the drying chamber 2 synchronously drive the screw 242 to rotate, causing the connecting chamber 23 to move up and down in the slide groove 241. This adjusts the distance between the heating plate 3, which is fixed to the bottom of the connecting chamber 23 and connected to the power supply, and the printed label paper 13, so as to avoid the heating plate 3 being too close or too far from the printed label paper 13, which would affect the drying efficiency of the printed label paper 13.

[0028] Reference Figure 2 The air supply hose 221 is fixedly connected to the upper part of the connecting chamber 23 by rubber gaskets and bolts. The air supply hose 221 is a retractable high-temperature resistant air duct. It is fixed to the fan 22 with bolts on the outside of the dryer. The air supply hose 221 is connected to the fan 22. The fan 22, which is electrically connected to the power supply, delivers air through the air supply hose 221 into the drying chamber 2. The heating plate 3 heats the flowing air, so that the hot airflow blows onto the printed label paper 13 located in the drying chamber 2 to quickly dry the ink on the printed label paper 13.

[0029] Reference Figure 2A heating plate 3 is connected to several heating coils 31, which are electrically connected to a power source. The heating coils 31 rapidly heat the airflow blown out through the connecting chamber 23, causing the airflow temperature inside the drying chamber 2 to rise rapidly. A ventilation plate 32 is bolted to the side of the heating plate 3 near the printed label paper 13. Several ventilation slots 321 on the ventilation plate 32 guide the hot airflow heated by the heating plate 3, allowing the hot airflow to directly blow on the printed label paper 13 and dry the ink on the printed label paper 13. The inner wall of the drying chamber 2 is rotatably connected to the rotating roller 25 via bearings below the printed label paper 13. Several rotating rollers 25 are installed along the moving direction of the printed label paper 13, supporting the printed label paper 13 and minimizing the possibility of the printed label paper 13 falling downwards and breaking when the hot airflow blows on the printed label paper 13.

[0030] Reference Figure 2 The drying chamber 5 is fixed to the side wall of the drying chamber 2 with bolts. An air outlet pipe 26 is installed between the drying chamber 2 and the drying chamber 5, so that the air outlet pipe 26 connects to the inner side wall of the drying chamber 2. A ventilation pipe 51 is installed between the drying chamber 5 and the fan 22. The air in the drying chamber 2 is guided to the drying chamber 5 through the air outlet pipe 26 by the fan 22. The drying chamber 5 dries and filters the steam generated by drying the printed label paper 13 in the air. Then the air is sent back into the drying chamber 2 through the ventilation pipe 51 by the fan 22 to keep the air inside the drying chamber 2 dry.

[0031] Reference Figure 1 and Figure 2 At the end of the frame 1 furthest from the conveyor belt 11, the roller 4 is rotatably connected to the frame 1 via a bearing. The second drive component 41 is fixed to the frame 1 with bolts. The second drive component 41 is a drive motor electrically connected to the power supply. The drive end of the second drive component 41 drives the roller 4 to rotate through gear meshing, thereby winding up the dried printed label paper 13. A connecting frame 14 is fixed to the side of the frame 1 closest to the roller 4 with bolts. The connecting frame 14 is located on the upper and lower sides of the dried printed label paper 13 and is rotatably connected to the rotating rod 141 via bearings. When the second drive component 41 drives the roller 4 to wind up the dried printed label paper 13, the rotating rod 141 rotates with the movement of the printed label paper 13, flattening the printed label paper 13 and reducing the possibility of wrinkles appearing during winding.

[0032] The implementation principle of this application embodiment is as follows: In actual operation, the printed label paper 13 is laid flat on the conveyor belt 11 with the ink side facing up. The first drive unit 12 drives the conveyor belt 11 to send the printed label paper 13 into the drying chamber 2. The third drive unit 243 drives the screw 242 to rotate, causing the connecting chamber 23 to move up and down with the heating plate 3 to adjust the position of the heating plate 3. Then, the fan 22 delivers airflow into the drying chamber 2, and the heating coil 31 on the heating plate 3 heats the airflow, so that the hot airflow blows the printed label paper 13. The drying chamber 5 dries and filters the steam generated by drying in the air discharged from the air outlet duct 26. Then, the air is sent back into the drying chamber 2 by the fan 22 through the ventilation duct 51 to keep the air inside the drying chamber 2 dry. After the printed label paper 13 is dried, it is driven by the second drive unit 41 to rewind the roller 4 through the rotating rods 141 on the upper and lower sides. The heat flow generated by the heating plate 3 dries the printed label paper 13, and most of it remains in the drying chamber 2. This can increase the drying speed of the printed label paper 13 that subsequently enters the drying chamber 2. At the same time, the height of the heating plate 3 in the drying chamber 2 can be adjusted to avoid the heating plate 3 being too close or too far from the printed label paper 13, which would cause uneven drying of the ink on the printed label paper 13 and improve the production efficiency of the printed label paper 13.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drying device for self-adhesive printed labels, comprising a frame (1), characterized in that: One end of the frame (1) is provided with a conveyor belt (11) for conveying printed label paper (13). The frame (1) is provided with a drive component (12) for driving the conveyor belt (11) to rotate. A drying box (2) is provided above the frame (1) near the conveyor belt (11). A connecting groove (21) is provided on the side wall of the drying box (2) for the printed label paper (13) to pass through. A heating plate (3) is slidably provided inside the drying box (2) along the vertical direction of the drying box (2). A winding roller (4) for winding the dried printed label paper (13) is rotatably provided at the end of the frame (1) away from the conveyor belt (11). A drive component (41) for driving the winding roller (4) to rotate is provided at one end of the rotating roller (25).

2. The drying equipment for self-adhesive printed labels according to claim 1, characterized in that: A fan (22) is provided on the outside of the drying box (2). The fan (22) passes through the drying box (2) and is provided with an air supply hose (221) corresponding to the heating plate (3). A connecting chamber (23) connected to the air supply hose (221) is provided on the side of the heating plate (3) away from the printed label paper (13).

3. A drying device for self-adhesive printed labels according to claim 2, characterized in that: The drying chamber (2) has mounting brackets (24) on both sides of the heating plate (3) on its inner wall. The mounting brackets (24) have a sliding groove (241) on the side of the heating plate (3) near the heating plate (3). The connecting chamber (23) is slidably connected to the inner wall of the sliding groove (241) on both sides. The inner wall of the sliding groove (241) is provided with a screw (242) rotatably along the length of the sliding groove (241). The screw (242) is threadedly connected to the part of the connecting chamber (23) located in the sliding groove (241). The drying chamber (2) has a driving component (243) on its outer side to drive the screw (242) to rotate.

4. A drying device for self-adhesive printed labels according to claim 3, characterized in that: The heating plate (3) is provided with several heating coils (31) corresponding to the connecting chamber (23).

5. A drying device for self-adhesive printed labels according to claim 4, characterized in that: The heating plate (3) is provided with a ventilation plate (32) on the side near the printed label paper (13), and the ventilation plate (32) is provided with a plurality of ventilation slots (321).

6. A drying device for self-adhesive printed labels according to claim 3, characterized in that: The inner wall of the drying oven (2) is provided with a number of rotating rollers (25) located below the printed label paper (13), and the rotating rollers (25) are in contact with one side of the printed label paper (13).

7. A drying device for self-adhesive printed labels according to claim 6, characterized in that: An air outlet pipe (26) is provided through the inner wall of the drying box (2) below the heating plate (3). A drying box (5) is connected to the side of the air outlet pipe (26) away from the drying box (2). A ventilation pipe (51) is provided between the drying box (5) and the fan (22).

8. A drying device for self-adhesive printed labels according to claim 2, characterized in that: A connecting frame (14) is provided on the side of the frame (1) near the roller (4). The connecting frame (14) is rotatably provided on the upper and lower sides of the dried printed label paper (13). The circumferential sidewall of the rotating rod (141) is in contact with the printed label paper (13).

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