UV and IR dual-curing integrated system

Abstract

The utility model discloses a UV (ultraviolet) and IR (infrared) dual-curing integrated system and aims to solve the problem that printing ink is not dried thoroughly during high-speed printing. The system comprises a bottom plate, an IR lamp assembly and a UV lamp assembly which are arranged at intervals to form a drying treatment channel. The UV lamp assembly comprises a UV lamp and a turbofan, and irradiates and guides airflow through the bottom opening. The IR lamp assembly adopts a drawable pull box in which an IR lamp is arranged, and hot air of an external drying oven is introduced through an air inlet pipe and is blown to the channel through the pull box. A corresponding air draft mechanism is further arranged at the bottom of the bottom plate, and hot air is exhausted through a fan. The UV curing and IR hot air penetration drying device combines the double advantages of UV instant curing and IR hot air penetration drying, can effectively deal with high-speed printing, ensures that printing ink is thoroughly dried, improves the printing quality, and has the characteristics of reasonable structure, energy conservation, environmental protection and convenience in maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing equipment technical field especially relates to a kind of UV, IR dual-curing integrated system for the quick, efficient drying of printed matter. BACKGROUND

[0002] As is known to all, UV lamp is ultraviolet light source device, for industrial curing, sterilization etc.;IR lamp is infrared light source device, mainly for heating or covert lighting.In the printing field, printing material is dried after printing, the ink on its surface needs to be immediately treated, generally using one of UV lamp or IR lamp.But with the upgrading of printing products, printing machine operating efficiency improves, printing material conveying speed accelerates, leading to the existing drying equipment can not keep up with printing speed, so that the ink on printing material cannot be completely dried, greatly affect the quality of printing.

[0003] In the prior art, there are limitations in single UV or IR curing method: UV curing speed is fast but the penetration of certain special ink or substrate is limited;IR curing is mainly through heat conduction, and the efficiency is relatively low and the energy consumption is high.When facing high-speed printing, single curing source is difficult to provide enough energy to make the ink completely cured in a short time, which becomes the bottleneck of restricting printing quality and production efficiency.Therefore, how to design a device that can adapt to the demand of high-speed printing, effectively integrate the advantages of two curing methods to improve drying efficiency and quality is a technical problem to be solved at present. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the utility model provides a kind of UV, IR dual-curing integrated system, to solve the technical problems that the ink cannot be completely dried due to the increase of printing speed of existing printing drying equipment, and then affect the printing quality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of UV, IR dual-curing integrated system, including bottom plate, IR lamp assembly and at least one group of UV lamp assembly of downward irradiation;The bottom plate is spaced apart between the IR lamp assembly and the UV lamp assembly, and is enclosed to form a drying treatment channel for printing material passing;

[0006] The UV lamp assembly includes a first box body, the UV lamp and the vane are installed in the first box body, the vane is located above the UV lamp, the first box body is provided with a first opening with the width of the drying treatment channel to supply the light of the UV lamp to pass through and irradiate the printing material in the drying treatment channel, while the airflow generated by the vane is guided to the drying treatment channel through the first opening;

[0007] The IR lamp assembly comprises a second box body, the bottom of the second box body is open, a pull-out box is arranged in the interior of the second box body, an IR lamp is arranged in the pull-out box, the bottom of the pull-out box and the bottom of the second box body are respectively provided with a second opening matched with the width of the drying treatment channel, so that the light of the IR lamp passes through the second opening and irradiates the printing material in the drying treatment channel, an air inlet pipe is arranged on the pull-out box body, the air inlet pipe is communicated with an external heat source device, a partition plate is arranged in the inner cavity of the pull-out box, the partition plate is located above the IR lamp and is provided with an air inlet, so that the hot air from the external heat source enters the pull-out box through the air inlet pipe and then blows to the drying treatment channel through the second opening.

[0008] An air exhaust mechanism corresponding to the IR lamp assembly is further arranged at the bottom of the bottom plate, and the bottom plate is provided with an air vent at a position corresponding to the air exhaust mechanism; the air exhaust mechanism comprises an outer shell connected with the bottom plate, the top of the outer shell is provided with an air exhaust opening communicated with the air vent, and at least one air exhaust fan is arranged in the outer shell and used for exhausting the hot air flowing through the drying treatment channel.

[0009] Further, the number of the UV lamp assemblies is two, and the two UV lamp assemblies are symmetrically arranged on the two sides of the IR lamp assembly.

[0010] Further, the external heat source device is an oven, and the air inlet pipe is communicated with the interior of the oven through an air pipe.

[0011] Further, a guide rail is further arranged in the pull-out box, two sliding blocks are arranged on the guide rail and slide along the guide rail, lamp sockets are arranged on the sliding blocks, and the IR lamp is arranged between the two lamp sockets and is powered on, so that the position of the IR lamp can be adjusted and the IR lamp matched with the length of the printing material can be replaced according to the width of the printing material.

[0012] The beneficial effects of the utility model lie in:

[0013] The drying problem under high-speed printing is solved: by combining UV curing (chemical curing) and IR curing (hot air auxiliary drying and penetration heating), a synergistic effect is formed. The UV lamp can instantly initiate the polymerization reaction of the ink to realize surface curing and prevent smearing. The hot air generated by the IR lamp not only directly penetrates the ink to accelerate the solvent evaporation and internal crosslinking reaction, but also complements the UV curing, so that the ink can be completely dried from the surface to the inside even under high-speed transmission, effectively solving the problem of ink not drying caused by the increase of printing speed and significantly improving the printing quality.

[0014] Efficient energy saving and temperature control: the pull-out box design of the IR lamp assembly is pull-out type, facilitating maintenance and replacement of the IR lamp tube. The hot air recycling design (from the oven air, through the IR assembly blowing out, and then by the exhaust mechanism) improves the heat energy utilization rate and reduces the overall energy consumption. The setting of the exhaust mechanism can timely remove high-temperature gas, avoid the accumulation of heat in the channel to cause the deformation of the printing material due to overheating, and also facilitate the maintenance of the stability of the airflow in the drying treatment channel and optimize the drying environment.

[0015] Reasonable structure design, convenient maintenance: the UV lamp assembly and the IR lamp assembly are modularly designed, compactly arranged, and form a stable drying channel through the bottom plate spacing. The pull-out box structure of the IR lamp assembly and the independent vortex fan cooling design of the UV lamp assembly greatly facilitate the daily cleaning, maintenance and part replacement of the equipment, reduce the maintenance cost, and ensure the long-term stable operation of the equipment.

[0016] The utility model will be further described below in combination with the drawings and specific embodiments. DRAWINGS

[0017] Figure 1 is a perspective view of the specific embodiment of the utility model;

[0018] Figure 2 is a first cutaway view of the specific embodiment of the utility model;

[0019] Figure 3 is a second cutaway view of the specific embodiment of the utility model.

[0020] Explanation of reference signs: 1 - bottom plate; 101 - drying treatment channel; 102 - air vent; 2 - IR lamp assembly; 201 - second box body; 202 - pull-out box; 203 - IR lamp; 204 - second opening on the pull-out box; 205 - second opening on the box body; 206 - air inlet pipe; 207 - air inlet; 3 - UV lamp assembly; 301 - first box body; 302 - UV lamp; 303 - vortex fan; 304 - first opening; 4 - exhaust mechanism; 401 - outer shell; 402 - exhaust port; 403 - exhaust fan. EMBODIMENT

[0021] The utility model will be further described below in combination with the drawings and specific embodiments.

[0022] As shown in Figure 1 - Figure 3 The embodiment discloses a UV, IR double-curing integrated system, which is designed to solve the problem of incomplete drying of ink in high-speed printing.

[0023] The whole system mainly comprises a long strip-shaped base plate 1, a downward-illuminating IR lamp assembly 2, two sets of downward-illuminating UV lamp assemblies 3, and an air exhaust mechanism 4. The base plate 1 serves as a basic support, and gaps are left between the base plate 1 and the bottom edges of the IR lamp assembly 2 and the two sets of UV lamp assemblies 3, so as to jointly form a drying treatment channel 101 in a long strip-shaped cross section, which is available for the continuous passing of printing materials (such as paper, film, etc.). The two sets of UV lamp assemblies 3 are symmetrically arranged on the two sides of the IR lamp assembly 2, and this layout enables the printing materials to successively or simultaneously receive UV light curing on both sides and IR hot air curing in the middle when passing through a continuous station.

[0024] Specifically, each set of UV lamp assembly 3 comprises a first box body 301. In the first box body 301, a UV lamp 302 is vertically installed, and a vortex fan 303 is installed right above the UV lamp 302. A first opening 304 is formed in the bottom of the first box body 301, and the width of the first opening 304 is adapted to the width of the drying treatment channel 101. During operation, the ultraviolet light emitted by the UV lamp 302 passes through the first opening 304 and vertically irradiates on the surface of the printing materials in the drying treatment channel 101, so as to trigger the instantaneous photopolymerization reaction of the ink. At the same time, the vortex fan 303 is started to generate downward airflow, which can not only physically cool the UV lamp 302 to prevent it from being damaged due to overheating, but also guide the small amount of volatile gas generated during the UV curing process downward and out of the channel. The airflow finally blows to the surface of the printing materials through the first opening 304, so as to play the role of auxiliary cooling and stable airflow.

[0025] The structure of the IR lamp assembly 2 is more complex to achieve the introduction and circulation of hot air. It contains a second box body 201 with an open bottom. Inside the second box body 201, there is a pull-out box 202 that can be pulled out from the side. The pull-out box 202 is installed with an IR lamp 203 as the core heat source. The lamp holder of the IR lamp is also equipped with a reflector to enhance the light. The bottom of the pull-out box 202 and the bottom of the second box body 201 are respectively provided with second openings (204 and 205 respectively) that are also adapted to the width of the drying treatment channel 101. After the IR lamp 203 is powered on, it emits infrared radiation, and its heat directly radiates to the printing material below through the two second openings. More importantly, the side wall of the pull-out box 202 is connected with an air inlet pipe 206, which is connected with an external oven through a pipe. At the same time, a partition is arranged in the inner cavity of the pull-out box 202 to strengthen the support of the entire pull-out box. The partition is designed with an air inlet 207. In this way, the high-temperature hot air in the oven can enter the pull-out box 202 through the pipe and the air inlet pipe 206, and then enter the pull-out box 202 containing the IR lamp 203, and finally pass through the second openings (the second opening 204 on the pull-out box and the second opening 205 on the box body) at the bottom to form a strong hot air flow, which directly blows to the printing material in the drying treatment channel 101. The combination of the radiant heat of the IR lamp 203 and the forced convection heat of the hot air can quickly raise the temperature of the ink, accelerate the evaporation of the internal solvent and the intermolecular crosslinking reaction, and achieve deep drying. The pull-out design of the pull-out box 202 greatly facilitates the installation, maintenance and replacement of the IR lamp 203.

[0026] The pull-out box 202 is also provided with guide rails, on which two sliding blocks are arranged to slide along the guide rails. The sliding blocks are installed with lamp holders, and the IR lamp 203 is installed between the two lamp holders to be powered on. In this way, the position of the IR lamp 203 can be adjusted according to the width of the printing material, and the IR lamp of the same length can be replaced.

[0027] In order to prevent the accumulation of heat in the drying treatment channel 101 and the deformation of the printing material caused by high temperature, and to ensure the effective circulation of hot air, an air extraction mechanism 4 is fixedly installed on the bottom of the bottom plate 1 opposite the area of the IR lamp assembly 2. A ventilation opening 102 is opened on the bottom plate 1 corresponding to the position of the air extraction mechanism 4. The air extraction mechanism 4 includes an outer shell 401 fixedly connected with the bottom plate 1, and the top of the outer shell 401 is open as an air extraction opening 402 which is precisely connected with the ventilation opening 102 of the bottom plate 1. One or more air extraction fans 403 are installed in the inner cavity of the outer shell 401. After the air extraction fan 403 is started, the exhaust gas and hot air heated by the printing material flowing through the area of the IR lamp assembly 2 can be sucked into the outer shell 401 through the ventilation opening 102 and the air extraction opening 402, and finally discharged from the system. This not only protects the printing material, but also makes the drying process more stable and controllable.

[0028] The workflow of the embodiment is as follows: the printed material enters the drying treatment channel 101, firstly passes through the UV lamp assembly 3 on one side to receive the instantaneous surface curing of UV light; then the material continues to advance while passing through the lower part of the IR lamp assembly 2 to receive the combined action of IR radiation and hot air, complete the internal deep drying and removal of residual solvents; finally, the material passes through the UV lamp assembly 3 on the other side to perform secondary UV curing or light compensation, ensuring that nothing is missed. The whole process is completed in one go, efficient and reliable. The air extraction mechanism 4 continuously works to maintain the stability of the environment in the channel.

[0029] The above merely describes a preferred embodiment of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A UV, IR dual-cure integrated system, characterized in that, The application relates to a drying device for printing materials, which comprises a bottom plate (1), a downward-illuminating IR lamp assembly (2) and at least one set of UV lamp assemblies (3); the bottom plate (1) is arranged in a spaced manner between the IR lamp assembly (2) and the UV lamp assembly (3) to jointly form a drying treatment channel (101) for the printing materials. The IR lamp assembly (2) comprises a second box body (201), the bottom of the second box body (201) is open, a pull-out box (202) is arranged in the second box body (201), an IR lamp (203) is arranged in the pull-out box (202), the bottom of the pull-out box (202) and the bottom of the second box body (201) are respectively provided with second openings (204, 205) matching the width of the drying treatment channel (101), so that the light of the IR lamp (203) can pass through the second openings (204, 205) and irradiate the printing materials in the drying treatment channel (101); an air inlet pipe (206) is arranged on the pull-out box (202), the air inlet pipe (206) is communicated with an external heat source device, a partition plate is arranged in the inner cavity of the pull-out box (202), the partition plate is located above the IR lamp (203) and is provided with an air inlet (207), so that hot air from the external heat source device enters the pull-out box (202) through the air inlet pipe (206) and then blows to the drying treatment channel (101) through the second openings (204, 205). An air extraction mechanism (4) corresponding to the IR lamp assembly (2) is arranged on the bottom of the bottom plate (1), and the bottom plate (1) is provided with a ventilation opening (102) corresponding to the air extraction mechanism (4); the air extraction mechanism (4) comprises an outer shell (401) connected with the bottom plate (1), the outer shell (401) is provided with an air extraction opening (402) communicated with the ventilation opening (102), and at least one air extraction fan (403) is arranged in the outer shell (401).

2. The UV, IR dual-cure integrated system of claim 1, wherein, The number of the UV lamp assemblies (3) is two sets, and the two sets of UV lamp assemblies (3) are symmetrically arranged on the two sides of the IR lamp assembly (2).

3. The UV, IR dual cure integrated system of claim 1, wherein, The UV lamp assembly (3) comprises a first box body (301), the first box body (301) is provided with a UV lamp (302) and a vortex fan (303), the vortex fan (303) is located above the UV lamp (302), the bottom of the first box body (301) is provided with a first opening (304) matching the width of the drying treatment channel (101), so that the light of the UV lamp (302) can pass through the first opening (304) and irradiate the printing materials in the drying treatment channel (101), and the airflow generated by the vortex fan (303) is guided to the drying treatment channel (101) through the first opening (304).

4. The UV, IR dual cure integrated system of claim 1, wherein, The external heat source device is an oven, and the air inlet pipe (206) is communicated with the inside of the oven through an air pipe.

5. The UV, IR dual cure integrated system of claim 1, wherein, The pull box (202) is further provided with a guide rail, two sliding blocks are arranged on the guide rail and slide along the guide rail, lamp holders are installed on the sliding blocks, and the IR lamps (203) are installed between the two lamp holders and are electrified, so that the positions of the IR lamps (203) can be adjusted according to the width of the printing material, and the IR lamps with lengths suitable for the positions can be replaced.

Images