Printing production equipment for PS plate reverse image UV label

Abstract

The invention relates to the technical field of label printing equipment, in particular to PS plate reverse image UV label printing production equipment which comprises an outer frame and label paper, a roll outlet frame is fixedly installed on the front side of the outer frame, a roll winding frame is fixedly installed on the rear side of the outer frame, and multiple sets of conveying rollers are rotationally installed in the outer frame; a group of discharging rollers are rotationally mounted at an outlet below the rear side wall of the outer frame; a corona machine is fixedly installed on the upper portion of the front side in the outer frame, a first coating machine and a first coating plate are fixedly installed on the upper portion of the rear side in the outer frame, a curing frame is fixedly installed on the lower portion of the rear side in the outer frame, and an upper curing assembly and a lower curing assembly are arranged in the curing frame. And a second coating machine and a second coating plate are fixedly mounted below the front side in the outer frame. On one hand, the coating precision of the pattern can be effectively improved, on the other hand, the curing effect between the pattern and the label can be fully improved, meanwhile, the internal space of the device is fully utilized, and the overall size of the device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of label printing equipment, in particular to a printing production equipment for PS plate reverse image UV labels. Background Art

[0002] Labels are a type of printed matter that plays an important role in various fields. Functionally, they are mainly used to identify the target audience of products, classify products, or clearly present the content information of products, which greatly facilitates users and manufacturers to find and locate target products. In today's business environment, the role of labels is crucial. For users, labels can quickly understand the key information of products and help users quickly filter out products that meet their needs from a large number of products; for manufacturers, labels are an important tool for product management and marketing. With the help of labels, manufacturers can accurately classify and manage products and improve inventory management efficiency.

[0003] During the printing production process of the label, its surface needs to be coated and cured. However, the coating and curing methods in the prior art are often relatively simple, which not only results in poor printing quality and accuracy of the image, but also poor curing effect between the pattern and the label. The pattern is difficult to stably adhere to the label surface, which causes the subsequent pattern to be easily erased during use. In addition, the existing devices are often large in size and have low space utilization. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned shortcomings in the prior art and to propose a printing production device for PS plate reverse image UV labels.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A printing and production device for a PS plate reverse image UV label, comprising an outer frame and label paper, wherein a discharging frame is fixedly installed on the front side of the outer frame, a winding frame is fixedly installed on the rear side, a plurality of groups of conveying rollers are rotatably installed inside the outer frame, and a group of discharging rollers are rotatably installed at the outlet below the rear side wall of the outer frame; A corona machine is fixedly installed on the upper front side of the outer frame, a first coater and a first coating plate are fixedly installed on the upper rear side of the outer frame, a curing frame is fixedly installed on the lower rear side of the outer frame, two sets of upper and lower curing components are arranged inside the curing frame, and a second coater and a second coating plate are fixedly installed on the lower front side of the outer frame.

[0006] Preferably, unprocessed label paper is rolled up inside the unrolling frame, and processed label paper is rolled up inside the winding frame.

[0007] Preferably, the conveying roller and the discharging roller are in rolling contact with the surface of the label paper, so that the label paper passes in an S shape inside the outer frame.

[0008] Preferably, a refrigeration device is fixedly installed below the corona machine, and the refrigeration device includes a refrigeration plate and a heating plate, and the refrigeration plate is in contact with the lower end surface of the corona machine.

[0009] Preferably, the label paper first passes through the upper part of the curing frame and then passes through the lower part of the curing frame, and the inner wall of the curing frame is made of reflective material.

[0010] Preferably, the curing assembly includes a turntable rotatably mounted on the inner walls on both sides of the curing frame, a curing tube is fixedly mounted at the center position between the two turntables, an ultraviolet lamp is installed inside the curing tube, and a plurality of rotating blades are arranged at equal angles on the outside of the curing tube, and the rotating blades are fixedly mounted between the two turntables.

[0011] Preferably, a heating frame is fixedly mounted on the lower end of the refrigeration device, the label paper passes through the lower inside of the heating frame, the heating plate is located in the heating frame, and a heat dissipation fin is fixedly mounted on the lower end of the heating plate.

[0012] Preferably, an air inlet pipe connected to the interior is fixedly installed on one side of the heating frame, and the air inlet pipe is used to transport the inert gas stored in the external equipment to the heating frame. An air guide pipe connected to the interior is fixedly installed on the other side of the heating frame, and the end of the air guide pipe away from the heating frame is connected to the interior of the curing frame. An air outlet pipe connected to the interior of the curing frame is fixedly installed on the lower side of the curing frame.

[0013] Preferably, a gas overflow pipe communicating with the interior of the heating frame is fixedly mounted on the upper end of the heating frame, and one end of the gas overflow pipe away from the heating frame is communicated with the interior of the corona machine.

[0014] Preferably, an ultrasonic device is fixedly installed at the lower part of the curing frame.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The S-shaped layout in this application utilizes the coordination of the conveying roller and the winding device to form a dynamic tension balance system to prevent paper deformation and breakage; at the same time, by superimposing the upper and lower paths, the two curing areas are nested in the same curing frame, so that a single set of curing tubes can cover the needs of two curings, greatly compressing the equipment space. The coordinated design of the reflective material and the rotating inert airflow in the curing frame further improves the utilization rate of ultraviolet rays, and the planar stability of the S-shaped path reduces printing errors and ensures coating accuracy. This structural innovation realizes the integration of multiple processes in a limited space, taking into account both production efficiency and equipment compactness.

[0016] 2. In this application, a cooling plate is configured at the bottom of the corona machine to actively cool down and offset the local heat generated by high-energy particle bombardment, thereby maintaining the flatness of the material and the uniformity of processing. During the curing stage, a rotating airflow of heated inert gas is introduced to eliminate coating bubbles through gas flushing and improve the curing consistency through uniform heat distribution. At the same time, the inert environment reduces ozone generation and oxygen inhibition effects. The thermal energy circulation design of the heating frame and the curing frame reuses the waste heat of the inert gas to the corona area to form a closed-loop thermal management, and the ultrasonic device strengthens the penetration and curing of the coating through molecular vibration. This deep coupling of the process chain accurately meets the differentiated needs of the two coatings (primer and art coating).

[0017] 3. In this application, the hot and cold separation module of the cooling plate and the heating plate is used in combination with the heat dissipation fins and gas diversion to avoid thermal interference and improve the heat exchange efficiency; the inert gas is recycled in the heating frame, curing frame, and corona zone to reduce gas consumption and emissions; the synergistic effect of ultraviolet curing and rotating airflow shortens the use time of the lamp tube and reduces energy consumption. At the same time, the secondary curing mechanism (curing frame + heating frame) and ultrasonic defoaming technology form a double quality insurance to ensure that the primer is completely cured, and the artistic coating can meet the precision requirements through a single curing. This design not only guarantees the product yield, but also reduces unit energy consumption through resource reuse.

[0018] In summary, the present application can effectively improve the coating accuracy of the pattern on the one hand, and can also fully improve the curing effect between the pattern and the label on the other hand, while making full use of the internal space of the device and reducing the overall volume of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall axonometric structure of a printing production device for a PS plate reverse image UV label proposed by the present invention.

[0020] Figure 2 This is a schematic structural diagram of a first coater and a second coater of a printing production device for a PS plate reverse image UV label proposed by the present invention.

[0021] Figure 3 This is a schematic diagram of the heat dissipation fins and label paper structure of a printing production device for a PS plate reverse image UV label proposed by the present invention.

[0022] Figure 4 This is a schematic diagram of the cooling plate and heating plate structures of a printing production device for a PS plate reverse image UV label proposed by the present invention.

[0023] Figure 5 The present invention provides a schematic diagram of the structure of an air inlet pipe and an air guide pipe of a printing production device for a PS plate reverse image UV label.

[0024] Figure 6The present invention provides a schematic diagram of the structure of a turntable and a curing tube of a printing production device for a PS plate reverse image UV label.

[0025] Figure 7 The present invention provides a schematic diagram of a half-section structure of an outer frame of a printing and production device for a PS plate reverse image UV label.

[0026] In the figure: 1 outer frame, 2 unwinding frame, 3 winding frame, 4 label paper, 5 conveying roller, 6 discharging roller, 7 corona machine, 8 first coating machine, 9 second coating machine, 10 first coating plate, 11 second coating plate, 12 heating frame, 13 cooling plate, 14 heating plate, 15 cooling fin, 16 gas overflow pipe, 17 air guide pipe, 18 air inlet pipe, 19 curing frame, 20 air outlet pipe, 21 turntable, 22 curing pipe, 23 rotating blade, 24 ultrasonic device. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1 to 7 A printing and production equipment for PS plate reverse image UV labels includes an outer frame 1, a discharging frame 2 is fixedly installed on the front side of the outer frame 1, and a winding frame 3 is fixedly installed on the rear side. Unprocessed label paper 4 is wound inside the discharging frame 2, and processed label paper 4 is wound inside the winding frame 3. Multiple groups of conveying rollers 5 are rotatably installed inside the outer frame 1, and the multiple groups of conveying rollers 5 are in rolling contact with the surface of the label paper 4, so that the label paper 4 passes in an S shape inside the outer frame 1. A group of discharging rollers 6 are rotatably installed at the outlet below the rear side wall of the outer frame 1, and the discharging rollers 6 are in rolling contact with the surface of the label paper 4.

[0029] A corona machine 7 is fixedly installed on the upper front side of the inner part of the outer frame 1. The corona machine 7 is a prior art, and its specific structural design will not be repeated here. It is used to perform corona treatment on the surface of the label paper 4, so as to improve the adhesion effect of the ink subsequently coated on the label paper 4. A refrigeration device is fixedly installed below the corona machine 7. The refrigeration device includes a refrigeration plate 13 and a heating plate 14. The refrigeration plate 13 contacts the lower end surface of the corona machine 7, thereby reducing the temperature of the bottom of the label paper 4 and avoiding deformation or warping of the label material caused by excessive temperature on the back side.

[0030] A first coating machine 8 and a first coating plate 10 are fixedly installed on the upper rear side of the inner part of the outer frame 1. After being treated by the corona machine 7, the label paper 4 passes between the first coating machine 8 and the first coating plate 10. The first coating machine 8 and the first coating plate 10 are used to apply ink to the surface of the label paper 4.

[0031] A curing frame 19 is fixedly installed at the lower rear side of the inner part of the outer frame 1. The label paper 4 first passes through the upper part of the inner part of the curing frame 19 and then passes through the lower part of the inner part of the curing frame 19. The inner wall of the curing frame 19 is made of reflective material, which can reflect ultraviolet rays to improve the light utilization rate of the curing tube 22. Two sets of upper and lower curing components are arranged inside the curing frame 19. The curing components include a turntable 21 rotatably installed on the inner walls of both sides of the curing frame 19. A curing tube 22 is fixedly installed at the center position between the two turntables 21. An ultraviolet lamp is installed inside the curing tube 22. The ultraviolet lamp emits ultraviolet rays for curing the UV varnish on the label paper 4. A plurality of rotating leaves 23 are arranged at equal angles on the outer side of the curing tube 22, and the rotating leaves 23 are fixedly installed between the two turntables 21.

[0032] A heating frame 12 is fixedly installed at the lower end of the refrigeration device, and the label paper 4 passes through the bottom of the heating frame 12. The heating plate 14 is located in the heating frame 12, and a heat dissipation fin 15 is fixedly installed at the lower end of the heating plate 14. The heat dissipation fin 15 is used to conduct the temperature of the heating plate 14 away to prevent the temperature of the heating plate 14 from being too high, which will cause the refrigeration effect of the refrigeration plate 13 to decrease. An air intake pipe 18 connected to the interior of the heating frame 12 is fixedly installed on one side of the heating frame 12. The air intake pipe 18 is used to transport the inert gas stored in the external equipment to the heating frame 12, and the air intake pipe 18 itself is heated under the action of the heat dissipation fin 15. An air guide pipe 17 connected to the interior of the heating frame 12 is fixedly installed on the other side of the heating frame 12. The end of the air guide pipe 17 away from the heating frame 12 is connected to the interior of the curing frame 19, and is used to transport the heated inert gas to the curing frame 19. A gas overflow pipe 16 connected to the interior of the heating frame 12 is fixedly installed on the upper end of the heating frame 12, and the end of the gas overflow pipe 16 away from the heating frame 12 is connected to the interior of the corona machine 7.

[0033] A second coating machine 9 and a second coating plate 11 are fixedly installed at the lower front side of the inner part of the outer frame 1. The label paper 4 passes between the second coating machine 9 and the second coating plate 11. The second coating machine 9 and the second coating plate 11 are used to perform a second coating on the label paper 4 to improve the artistic effect of the label paper 4.

[0034] An ultrasonic device 24 is fixedly installed at the lower part of the curing frame 19. The ultrasonic device 24 emits ultrasonic waves upward to increase the movement of molecules inside the coating, which helps UV light to better penetrate the coating and improve the curing efficiency. At the same time, it can help eliminate bubbles or tiny defects in the coating, making the coating more uniform, thereby improving the curing quality. An air outlet pipe 20 connected to the interior of the curing frame 19 is fixedly installed on one side below the curing frame 19.

[0035] When the present invention is working, the label paper 4 is first pulled out from the discharging frame 2, and with the assistance of the conveying roller 5 in the outer frame 1, it is pulled to the discharging roller 6 in an S shape, and finally enters the reeling frame 3 for reeling.

[0036] Specifically, the label paper 4 is first subjected to corona treatment by the corona machine 7 to improve the adhesion effect of the ink subsequently applied to the label paper 4. The bottom of the corona machine 7 is in contact with the cooling plate 13 to reduce the temperature of the bottom of the label paper 4 through heat transfer. When the label paper 4 is subjected to corona treatment, the surface will be bombarded by high-energy particles, which may generate local heat. If the temperature of the back side is too high, the label material may be deformed or warped; reducing the temperature of the back side of the label paper 4 helps maintain the stability of the surface temperature, thereby improving the uniformity of the corona treatment; it can prevent the material from being damaged due to overheating and ensure that its physical and chemical properties are not affected.

[0037] The label paper 4 after the corona treatment enters between the first coating machine 8 and the first coating plate 10 , and ink coating treatment is performed on the surface of the label paper 4 .

[0038] Since the label paper 4 is in an S-shaped route, when entering the curing frame 19, the coated side faces downward, facing the curing tube 22. The curing tube 22 emits ultraviolet rays to cure the UV varnish on the label paper 4. The inner wall of the curing frame 19 is a reflective material, which can reflect ultraviolet rays and improve the light utilization rate of the curing tube 22; since the side air guide tube 17 blows heated inert gas with a certain initial velocity into the middle of the two groups of curing tubes 22, the rotating blades 23 cooperate with aerodynamics to make the curing tube 22 rotate under the action of the turntable 21, forming a rotating and high-temperature inert gas flow in the curing frame 19.

[0039] The cured label paper 4 will enter the heating frame 12. The upper part of the heating frame 12 is a heating plate 14. The lower part of the heating plate 14 is provided with a heat dissipation fin 15. Firstly, the existence of the heat dissipation fin 15 can quickly conduct away the temperature of the heating plate 14 to avoid the temperature of the heating plate 14 being too high, which will cause the cooling effect of the cooling plate 13 to decrease. Secondly, the air inlet pipe 18 introduces an inert gas (such as helium, neon and argon, etc.) into the heating frame 12. The inert gas blows through the heat dissipation fin 15 to take away the temperature of the heating plate 14. At the same time, the inert gas is heated and can enter the curing frame 19 through the air guide pipe 17 to assist the curing process. Then, the temperature inside the heating frame 12 rises, and the label paper 4 below is dried again to ensure that the first layer of UV varnish applied on the label paper 4 is completely cured, in preparation for the next coating. Finally, part of the inert gas overflows from the gas overflow pipe 16 into the working area of ​​the corona machine 7, providing an inert gas environment for the corona treatment, which can improve the effect of the corona treatment.

[0040] Since the requirements for the first coating and the second coating are different, the first coating requires a large area of ​​primer and a higher demand for drying and curing, so after coming out of the first coating machine 8, it enters the curing frame 19 and the heating frame 12 for curing and secondary curing to ensure the product effect of the label paper 4. The second coating machine 9 generally performs artistic design or matte filling on the basis of primer, and the amount of UV varnish used is small, so it only needs to be cured in the curing frame 19; in order to ensure the curing effect, an ultrasonic device 24 is set at the bottom of the curing frame 19, which emits ultrasonic waves upward to increase the movement of molecules inside the coating, which helps UV light to better penetrate the coating and improve the curing efficiency; at the same time, it can help eliminate bubbles or tiny defects in the coating, making the coating more uniform, thereby improving the curing quality.

[0041] The label paper 4 coming out of the heating frame 12 faces upward again in the S-shaped movement, and is coated for the second time when passing through the second coating machine 9 and the second coating plate 11 to improve the artistic effect of the label paper 4; then it enters the curing frame 19 again for curing (the process is the same as the first curing), and finally the finished label paper 4 is rolled up by the winding frame 3.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A printing and production device for a PS plate reverse image UV label, comprising an outer frame (1) and label paper (4), wherein a roll-out frame (2) is fixedly mounted on the front side of the outer frame (1), and a roll-up frame (3) is fixedly mounted on the rear side, characterized in that: A plurality of groups of conveying rollers (5) are rotatably mounted inside the outer frame (1), and a group of discharging rollers (6) are rotatably mounted at the outlet below the rear side wall of the outer frame (1); A corona machine (7) is fixedly installed on the upper front side of the inner part of the outer frame (1); a first coating machine (8) and a first coating plate (10) are fixedly installed on the upper rear side of the inner part of the outer frame (1); a curing frame (19) is fixedly installed on the lower rear side of the inner part of the outer frame (1); two sets of upper and lower curing components are arranged inside the curing frame (19); and a second coating machine (9) and a second coating plate (11) are fixedly installed on the lower front side of the inner part of the outer frame (1).

2. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: The unrolling frame (2) has unprocessed label paper (4) rolled up inside, and the reeling frame (3) has processed label paper (4) rolled up inside.

3. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: The conveying roller (5) and the discharging roller (6) are both in rolling contact with the surface of the label paper (4), so that the label paper (4) passes in an S shape inside the outer frame (1).

4. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: A refrigeration device is fixedly installed below the corona machine (7), the refrigeration device comprising a refrigeration plate (13) and a heating plate (14), the refrigeration plate (13) being in contact with the lower end surface of the corona machine (7).

5. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: The label paper (4) first passes through the upper part of the curing frame (19) and then passes through the lower part of the curing frame (19); the inner wall of the curing frame (19) is made of a reflective material.

6. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: The curing assembly comprises a turntable (21) rotatably mounted on the inner walls of both sides of a curing frame (19); a curing tube (22) is fixedly mounted at the center position between the two turntables (21); an ultraviolet lamp is mounted inside the curing tube (22); a plurality of rotating blades (23) are arranged at equal angles on the outside of the curing tube (22); and the rotating blades (23) are fixedly mounted between the two turntables (21).

7. The printing production equipment for PS plate reverse image UV label according to claim 4, characterized in that: A heating frame (12) is fixedly mounted at the lower end of the refrigeration device, the label paper (4) passes through the lower part of the heating frame (12), the heating plate (14) is located in the heating frame (12), and a heat dissipation fin (15) is fixedly mounted at the lower end of the heating plate (14).

8. The printing production equipment for PS plate reverse image UV label according to claim 7, characterized in that: An air inlet pipe (18) connected to the interior of the heating frame (12) is fixedly mounted on one side of the heating frame (12). The air inlet pipe (18) is used to transport inert gas stored in external equipment to the heating frame (12). An air guide pipe (17) connected to the interior of the heating frame (12) is fixedly mounted on the other side of the heating frame (12). An end of the air guide pipe (17) away from the heating frame (12) is connected to the interior of the curing frame (19). An air outlet pipe (20) connected to the interior of the curing frame (19) is fixedly mounted on one side below the curing frame (19).

9. The printing production equipment for PS plate reverse image UV label according to claim 7, characterized in that: A gas overflow pipe (16) communicating with the interior of the heating frame (12) is fixedly mounted on the upper end of the heating frame (12); an end of the gas overflow pipe (16) away from the heating frame (12) is communicated with the interior of the corona machine (7).

10. The printing production equipment for PS plate reverse image UV label according to claim 1, characterized in that: An ultrasonic device (24) is fixedly installed at the lower part of the interior of the curing frame (19).

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