Curing device for printing machine

Abstract

The utility model discloses a curing device for a printing machine, which relates to the field of curing devices and comprises a case, a rack is fixedly mounted on the upper surface of the case, a belt conveyor is arranged on the rack, a curing box is fixedly mounted on the upper surface of the rack, and a curing component is arranged in the curing box. The horizontal curing lamps and the inclined curing lamps are arranged, printed packaging color boxes are conveyed by the belt conveyor and irradiated by the at least two sets of horizontal curing lamps and inclined curing lamps respectively, the horizontal curing lamps and the inclined curing lamps are LED lamps, printing ink is cured, the LED lamps are low in power, emitted light is cold light, and the light emitting efficiency is greatly improved. In addition, due to the fact that the packaging color box is provided with the folded edges and the uneven structure, the problem that partial areas of the packaging color box cannot be irradiated can be solved through cooperation of the horizontal curing lamp and the inclined curing lamp, and it is guaranteed that printing ink is evenly cured.

Description

TECHNICAL FIELD

[0001] The utility model relates to curing device technical field especially relates to a curing device for printing machine. BACKGROUND

[0002] In the field of color box packaging production, ink curing after printing is an important link to ensure product quality. Traditional curing process has developed for many years, and has formed various technical routes, and plays a role in different application scenarios. With the continuous improvement of the requirements of the packaging industry on printing quality and production efficiency, the curing device as an important part of the printing production line directly affects the visual effect and durability of the final product.

[0003] After searching, the utility model patent with the authorization announcement number CN221137250U is a packaging box reverse printing curing device, which comprises a base, the base is provided with a mounting plate, the mounting plate is provided with a hot air nozzle, the hot air nozzle is vertically fixed and communicated with an air inlet pipe, one end of the air inlet pipe is fixedly provided with a rectangular block, the rectangular block is internally provided with a cavity, and the mounting plate is fixedly provided with a hot air fan. The device can adjust and control the amount of hot air sprayed from the hot air nozzle through the cooperation of the rectangular block, air inlet pipe, baffle and transmission assembly, meet the packaging boxes of different volumes, effectively cure the UV varnish on the surface of the packaging boxes, and effectively improve the production qualified rate of the packaging boxes.

[0004] However, the device uses hot air curing, and the paper printing material may be locally dehydrated and shrunk under the action of continuous hot air, causing edge curling and warping. When the hot air nozzle is too close to the printing material or the air volume is uneven, the printing material may be locally overheated, and the curing effect is difficult to guarantee. In view of this, the present application further proposes a curing device for printing machine in view of the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a curing device for printing machine.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A curing device for printing machine, comprising a machine case, a rack is fixedly installed on the upper surface of the machine case, a belt conveyor is arranged on the rack, a curing box is fixedly installed on the upper surface of the rack, and a curing assembly is arranged in the curing box.

[0008] The curing assembly comprises at least two groups of horizontal curing lamps and inclined curing lamps, the horizontal curing lamps and the inclined curing lamps are LED lamps, and the horizontal curing lamps and the inclined curing lamps are alternately arranged along the conveying direction of the belt conveyor.

[0009] Two symmetrical horizontal plates are fixedly installed between the inner walls of the curing box, first fixing assemblies for fixing horizontal curing lamps are arranged on the horizontal plates, a square frame is fixedly installed between the horizontal plates, and second fixing assemblies for fixing inclined curing lamps are arranged on the square frame.

[0010] A box door is rotatably installed on one side of the curing box through a hinge, air inlet holes are arranged on the box door, and air outlet holes are arranged on the other side of the curing box.

[0011] Further, the first fixing assemblies and the second fixing assemblies each include a vertical plate, a plurality of lapping grooves are arranged on the vertical plate in the vertical direction of the vertical plate, lampshades are fixedly installed on the horizontal curing lamps and the inclined curing lamps, supports are fixedly installed on the left and right sides of the lampshades, U-shaped plates are fixedly installed on the upper surfaces of the supports, threaded connecting heads matched with the lapping grooves are fixedly installed on the left and right sides of the U-shaped plates, and nuts are arranged between the threaded connecting heads and the vertical plate.

[0012] Further, a connecting frame is fixedly installed at the top end of the vertical plate on the second fixing assembly, the connecting frame is sleeved outside the square frame, connecting holes are through-arranged on the upper and lower sides of the square frame, fixing bolts are arranged in the connecting holes, and the connecting frame is fixedly connected with the square frame through the fixing bolts.

[0013] Further, the lapping grooves are arranged in an inclined upward manner.

[0014] Further, an exhaust fan is fixedly installed inside the air outlet holes, an outer shell is fixedly installed outside the air outlet holes, and an activated carbon plate is fixedly installed inside the outer shell.

[0015] Further, an aluminum film is fixedly installed on the inner wall of the curing box.

[0016] Further, protective shells are fixedly installed on the left and right ends of the curing box.

[0017] Further, threaded foot screws are fixedly installed on the lower surface of the casing, and rollers are arranged on the lower surface of the casing.

[0018] The casing is rotatably installed on the bottom plate through the threaded foot screws, and the rollers are arranged on the lower surface of the casing.

[0019] 1.The utility model discloses a curing device for printing machine, which comprises a curing box, a horizontal curing lamp and an inclined curing lamp, and the horizontal curing lamp and the inclined curing lamp are arranged in the curing box.

[0020] 2.The utility model discloses a curing device for printing machine, which comprises a curing box, a horizontal curing lamp and an inclined curing lamp, and the horizontal curing lamp and the inclined curing lamp are arranged in the curing box.

[0021] 3.The utility model discloses a curing device for printing machine, which comprises a curing box, a horizontal curing lamp and an inclined curing lamp, and the horizontal curing lamp and the inclined curing lamp are arranged in the curing box. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the curing device for printing machine according to the utility model.

[0023] Figure 2 FIG. 2 is a schematic diagram of the inside of the curing box of the curing device for printing machine according to the utility model.

[0024] Figure 3 FIG. 3 is a schematic diagram of the first fixing assembly of the curing device for printing machine according to the utility model.

[0025] Figure 4 FIG. 4 is a schematic diagram of the horizontal curing lamp of the curing device for printing machine according to the utility model.

[0026] Figure 5 FIG. 5 is a schematic diagram of the inclined curing lamp of the curing device for printing machine according to the utility model. Figure 4

[0027] FIG. 6 is a partial enlarged schematic diagram of A in FIG. 5.Figure 6 The utility model provides a kind of installation schematic view of screw joint of curing device for printing machine on U plate;

[0028] Figure 7 The utility model provides a kind of installation schematic view of square frame of curing device for printing machine on cross plate;

[0029] Figure 8 The utility model provides a kind of separation schematic view of connecting frame and square frame of curing device for printing machine;

[0030] Figure 9 The utility model provides a kind of top view schematic view of curing device for printing machine.

[0031] In the drawing: 1, case;2, rack;3, belt conveyor;4, curing box;5, curing assembly;6, horizontal curing lamp;7, inclined curing lamp;8, cross plate;9, first fixed component;10, square frame;11, second fixed component;12, door;13, air inlet hole;14, vertical plate;15, lap joint groove;16, lampshade;17, support;18, U plate;19, screw joint;20, nut;21, connecting frame;22, connecting hole;23, fixed bolt;24, exhaust fan;25, shell;26, protective shell;27, threaded foot;28, roller. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0033] Refer to Figures 1-3 、 Figures 6-7 A curing device for printing machine, comprising a case 1, a rack 2 is fixedly installed on the upper surface of the case 1, a belt conveyor 3 is arranged on the rack 2, a curing box 4 is fixedly installed on the upper surface of the rack 2, and a curing assembly 5 is arranged in the curing box 4.

[0034] The curing assembly 5 comprises at least two groups of horizontal curing lamps 6 and inclined curing lamps 7, the horizontal curing lamps 6 and the inclined curing lamps 7 are all LED lamps, and the horizontal curing lamps 6 and the inclined curing lamps 7 are alternately arranged along the conveying direction of the belt conveyor 3.

[0035] Two symmetrical cross plates 8 are fixedly installed between the inner walls of the curing box 4, a first fixed component 9 for fixing the horizontal curing lamp 6 is arranged on the cross plate 8, a square frame 10 is fixedly installed between the cross plates 8, and a second fixed component 11 for fixing the inclined curing lamp 7 is arranged on the square frame 10.

[0036] The curing box 4 is provided with a box door 12 on one side through a hinge, and the box door 12 is provided with an air inlet hole 13, and the other side of the curing box 4 is provided with an air outlet hole;

[0037] The printed packaging box is conveyed by the belt conveyor 3, and is irradiated by at least two groups of horizontal curing lamps 6 and inclined curing lamps 7. Since the horizontal curing lamps 6 and the inclined curing lamps 7 are LED lamps, the specific wavelength ultraviolet light emitted by the LED lamps reacts with the photoinitiator in the photosensitive material, thereby triggering rapid polymerization / crosslinking, thereby curing the printing ink. Since the LED lamp has low power and emits cold light, the paper printing object will not be curled or warped. In addition, since the packaging box has a folded edge and uneven structure, the cooperation of the horizontal curing lamps 6 and the inclined curing lamps 7 can avoid the problem that some areas of the packaging box cannot be irradiated, and ensure uniform curing of the ink.

[0038] With reference to Figures 4-6 Specifically, the first fixing assembly 9 and the second fixing assembly 11 each include a vertical plate 14, the vertical plate 14 is provided with a plurality of overlapping grooves 15 along the vertical direction thereof, the horizontal curing lamps 6 and the inclined curing lamps 7 are each fixedly installed with a lampshade 16, the lampshade 16 is fixedly installed with a bracket 17 on the left and right sides thereof, the bracket 17 is fixedly installed with a U-shaped plate 18 on the upper surface thereof, the U-shaped plate 18 is fixedly installed with a threaded connector 19 matched with the overlapping groove 15 on the left and right sides thereof, and the threaded connector 19 and the vertical plate 14 are provided with a nut 20 therebetween;

[0039] According to the inverse proportion between ultraviolet intensity and square of distance, the installation height of the horizontal curing lamps 6 and the inclined curing lamps 7 on the respective vertical plates 14 can be adjusted. Specifically, the threaded connector 19 on the U-shaped plate 18 is inserted into the overlapping groove 15, and the installation height is changed by being placed in different overlapping grooves 15, thereby adjusting the illumination intensity. After the height is adjusted, the nut 20 is tightened.

[0040] With reference to Figures 7-8 Specifically, the vertical plate 14 on the second fixing assembly 11 is fixedly installed with a connecting frame 21 at the top end thereof, the connecting frame 21 is sleeved outside the square frame 10, the square frame 10 is provided with a connecting hole 22 penetrating through the upper and lower sides thereof, the connecting hole 22 is provided with a fixing bolt 23, and the connecting frame 21 is fixedly connected with the square frame 10 through the fixing bolt 23;

[0041] And the angle of the inclined curing lamp 7 can be adjusted in advance when it is installed on the vertical plate 14, and then fixed by the nut 20, so that the light can irradiate every corner of the packaging color box, especially the areas that are difficult to directly irradiate. The inclined curing lamp 7 can be installed at different positions of the square frame 10 through the connecting frame 21, and then fixed by the fixing bolt 23, which further ensures that the inclined curing lamp 7 can directly irradiate the folding edge and the concave-convex part of the packaging color box, and reduces the irradiation blind area.

[0042] With reference to Figures 4-5 , Specifically: the lap joint groove 15 is arranged in an inclined upward shape, and the horizontal curing lamp 6 and the inclined curing lamp 7 will not fall due to gravity.

[0043] With reference to Figures 1-2 , Figure 9 , Specifically: the air outlet hole is fixedly installed with an exhaust fan 24, the air outlet hole is fixedly installed with an outer shell 25, and the inner part of the outer shell 25 is fixedly installed with an activated carbon plate. During the curing process, the exhaust fan 24 is started, the volatile gas generated is discharged by the ventilation system composed of the air inlet hole 13 and the exhaust fan 24, and is discharged after being filtered by the activated carbon plate.

[0044] Specifically: the inner wall of the curing box 4 is fixedly installed with an aluminum film, and the horizontal curing lamp 6 and the inclined curing lamp 7 cooperate with the aluminum film reflection layer of the inner wall of the curing box 4 to form a uniform light field, which significantly reduces the influence of heat radiation on the moisture content of paper while ensuring the curing efficiency.

[0045] With reference to Figure 1 , Specifically: the curing box 4 is fixedly installed with a protective shell 26 at both ends.

[0046] With reference to Figure 1 , Specifically: the lower surface of the case 1 is fixedly installed with a threaded foot 27, and the lower surface of the case 1 is provided with a roller 28.

[0047] Working principle: the packaging color box after printing is conveyed by the belt conveyor 3, and irradiated by at least two groups of horizontal curing lamps 6 and inclined curing lamps 7 respectively. Since the horizontal curing lamp 6 and the inclined curing lamp 7 are both LED lamps, the specific wavelength ultraviolet light emitted by the LED lamp reacts with the photoinitiator in the photosensitive material, thereby triggering rapid polymerization / crosslinking, thereby curing the printing ink. The LED lamp has low power and emits cold light, so it will not cause the paper printing material to curl and warp. In addition, due to the folding edge and uneven structure of the packaging color box, the cooperation of the horizontal curing lamp 6 and the inclined curing lamp 7 can avoid the problem that some areas of the packaging color box cannot be irradiated, and ensure uniform curing of the ink.

[0048] The exhaust fan 24 is started during the curing process, and the volatile gas generated is discharged by the ventilation system formed by the air inlet hole 13 and the exhaust fan 24, and is discharged after being filtered by the activated carbon plate;

[0049] According to the inverse proportion between the intensity of ultraviolet rays and the square of the distance, the installation height of the horizontal curing lamp 6 and the inclined curing lamp 7 on the respective vertical plates 14 can be adjusted, and the specific operation is that the threaded connection head 19 on the U-shaped plate 18 is inserted into the lap joint groove 15, the installation height is changed by being placed in different lap joint grooves 15, the illumination intensity is adjusted, and after the height is adjusted, the nut 20 is tightened.

[0050] When the inclined curing lamp 7 is installed on the vertical plate 14, the angle can be adjusted in advance, and then fixed with the nut 20, so that the light can irradiate every corner of the packaging color box, especially those areas that are difficult to directly irradiate, and the inclined curing lamp 7 can be installed at different positions on the square frame 10 through the connecting frame 21, and then fixed with the fixing bolt 23, further ensuring that the inclined curing lamp 7 can directly irradiate the folding edges and concave-convex parts of the packaging color box, reducing the irradiation blind area.

[0051] The horizontal curing lamp 6 and the inclined curing lamp 7 cooperate with the aluminum film reflecting layer of the inner wall of the curing box 4 to form a uniform light field, which significantly reduces the influence of heat radiation on the moisture content of paper while ensuring the curing efficiency.

[0052] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0053] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

Claims

1. A curing device for a printing press, characterized in that: It comprises a chassis (1), a frame (2) is fixedly mounted on the upper surface of the chassis (1), a belt conveyor (3) is provided on the frame (2), a curing box (4) is fixedly mounted on the upper surface of the frame (2), and a curing assembly (5) is provided in the curing box (4); The curing assembly (5) includes at least two groups of horizontal curing lamps (6) and tilted curing lamps (7), both of which are LED lamps, and the horizontal curing lamps (6) and tilted curing lamps (7) are alternately arranged along the conveying direction of the belt conveyor (3); Two symmetrical transverse plates (8) are fixedly mounted between the inner walls of the curing box (4), and a first fixing assembly (9) for fixing a horizontal curing lamp (6) is provided on the transverse plates (8). A square frame (10) is fixedly mounted between the transverse plates (8), and a second fixing assembly (11) for fixing an inclined curing lamp (7) is provided on the frame (10); A box door (12) is rotatably mounted on one side of the curing box (4) via a hinge, an air inlet (13) is provided on the box door (12), and an air outlet is provided on the other side of the curing box (4).

2. A curing device for a printing press according to claim 1, characterized in that: The first fixing assembly (9) and the second fixing assembly (11) both comprise a vertical plate (14), the vertical plate (14) being provided with a plurality of overlapping grooves (15) along its vertical direction, the horizontal curing lamp (6) and the tilted curing lamp (7) being fixedly mounted with a lampshade (16), the left and right sides of the lampshade (16) being fixedly mounted with brackets (17), the upper surface of the bracket (17) being fixedly mounted with a U-shaped plate (18), the left and right sides of the U-shaped plate (18) being fixedly mounted with threaded connectors (19) matching the overlapping grooves (15), and a nut (20) being provided between the threaded connector (19) and the vertical plate (14).

3. A curing device for a printing press according to claim 2, characterized in that: A connecting frame (21) is fixedly mounted on the top of the vertical plate (14) located on the second fixing assembly (11). The connecting frame (21) is sleeved on the outside of the square frame (10). Connecting holes (22) are provided on the upper and lower sides of the square frame (10). Fixing bolts (23) are provided in the connecting holes (22). The connecting frame (21) is fixedly connected to the square frame (10) via the fixing bolts (23).

4. A curing device for a printing press according to claim 2, characterized in that: The overlapping groove (15) is arranged to be inclined upward.

5. The curing device for a printing press according to claim 1, characterized in that: An exhaust fan (24) is fixedly mounted on the inside of the air outlet, a housing (25) is fixedly mounted on the outside of the air outlet, and an activated carbon plate is fixedly mounted inside the housing (25).

6. The curing device for a printing press according to claim 1, characterized in that: An aluminum film is fixedly mounted on the inner wall of the curing box (4).

7. The curing device for a printing press according to claim 1, characterized in that: Protective shells (26) are fixedly mounted on both left and right ends of the curing box (4).

8. The curing device for a printing press according to claim 1, characterized in that: A threaded foot (27) is fixedly mounted on the lower surface of the chassis (1), and a roller (28) is provided on the lower surface of the chassis (1).

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