Ultraviolet curing device for metal sheet

Abstract

The utility model relates to UV curing device technical field especially relates to a kind of ultraviolet curing device of metal sheet, including conveying component, cover, UV curing lamp and strip-shaped brush.The strip-shaped brush is arranged along the length direction of cover.The utility model is by being provided with cover above conveying mechanism, and UV curing lamp is arranged in cover, to be blocked by cover to prevent ultraviolet leakage, again cooperation strip-shaped brush being respectively arranged in the front and back of cover, ultraviolet can be further blocked from the leakage of the access channel of metal sheet below cover, while not affecting the continuous conveying of metal sheet on conveying mechanism, so that ultraviolet curing device can be suitable for assembly line operation, also can avoid the harm of ultraviolet to staff.

Description

Technical Field

[0001] This utility model relates to the field of UV curing devices, and more particularly to a UV curing device for thin metal sheets. Background Technology

[0002] Tinplate generally refers to cold-rolled low-carbon steel sheets with a thin layer of tin plating on the surface. It possesses good sealing properties, corrosion resistance, and ductility, and is commonly used to manufacture packaging containers such as food cans, beverage cans, and gift boxes. To give packaging containers an attractive appearance and clearly convey product information to consumers, printing is usually required on the tinplate sheets used for packaging. Ultraviolet (UV) irradiation allows the photoinitiators in the ink to react rapidly, enabling the ink to cure into a film in a shorter time, thereby improving the printing efficiency of the tinplate sheets.

[0003] Existing UV curing devices (such as the polygonal UV curing machine disclosed in Chinese patent document CN218835087U) use a motor to move a shield downwards, which can block the ultraviolet rays irradiating the bottom of the irradiation mechanism and prevent the ultraviolet rays from harming the workers' hands. However, in the aforementioned polygonal UV curing machine, the shield needs to be frequently started, stopped, raised, and lowered as the product is conveyed, making it impossible to achieve a continuous production line operation where products are continuously fed in and uninterruptedly delivered after curing. Utility Model Content

[0004] The purpose of this invention is to provide a UV curing device for thin metal sheets, which aims to solve the problem that existing UV curing devices cannot be used in assembly line operations.

[0005] To achieve the above objectives, the solution provided by this utility model is as follows: An ultraviolet curing apparatus for thin metal sheets includes a conveying assembly; the conveying assembly includes two opposing frames and a conveying mechanism disposed between the frames; it also includes a cover, a UV curing lamp, and strip-shaped baffles; wherein, the two ends of the cover are fixedly mounted on the two frames, and the cover is located above the conveying mechanism, and the UV curing lamp is disposed inside the cover; the strip-shaped baffles are respectively fixed on the front and rear sides of the cover, and the strip-shaped baffles are arranged along the length of the cover, with a gap between the lower end of the strip-shaped baffles and the conveying surface of the conveying mechanism for the thin metal sheet to pass through.

[0006] Optionally, the strip brush includes a strip brush body and a first mounting plate for fixing the strip brush body; the first mounting plate is fixed on the cover, and the bottom of the first mounting plate has an inverted U-shaped groove along the length direction of the first mounting plate, and the upper part of the strip brush body is fixed in the groove.

[0007] Optionally, the first mounting plate has a plurality of mounting holes spaced apart along its length, and a first threaded connector that is threaded to the cover is inserted into the mounting holes.

[0008] Optionally, the mounting hole is a vertically extending waist-shaped mounting hole, and a nut is threaded onto the first threaded connector, the nut pressing against the first mounting plate.

[0009] Optionally, the top of the cover has a recessed portion facing downwards; the UV curing lamp is located in the recessed portion, and the bottom of the recessed portion has an opening.

[0010] Optionally, a second mounting plate is horizontally connected to the outer wall of the cover, and a second threaded connector is vertically inserted through the second mounting plate. The lower end of the second threaded connector is threadedly connected to the frame.

[0011] Optionally, the conveying mechanism includes a drive roller and a driven roller rotatably disposed between two frames, a drive wheel fixed on the drive roller and coaxially disposed with respect to the drive roller, a driven wheel fixed on the driven roller and coaxially disposed with respect to the driven roller, and a transmission belt wound around the drive wheel and the driven wheel; The number of driving wheels and driven wheels is not less than two, and both the surface of the driving wheel and the surface of the driven wheel are provided with annular grooves; the transmission belt is wound around the annular grooves.

[0012] Optionally, a belt support plate is fixed between the upper and lower sides of the transmission belt.

[0013] Optionally, a support partition is horizontally fixed between two adjacent frames, and multiple support frames are distributed at intervals along the length of the support partition; each support frame includes two opposing vertical support plates and a horizontal support plate horizontally disposed above the two vertical support plates, and the horizontal support plate is located between the upper and lower sides of the transmission belt; the transmission belt support plate rests on the horizontal support plate.

[0014] Beneficial effects: This utility model provides an ultraviolet curing device for thin metal sheets. By setting a cover above the conveying mechanism and placing the UV curing lamp inside the cover, the ultraviolet light can be blocked from leaking through the cover. In addition, the strip-shaped baffles set on the front and rear sides of the cover can further block the ultraviolet light from leaking through the inlet and outlet channels of the thin metal sheet below the cover, while not affecting the continuous conveying of the thin metal sheet on the conveying mechanism. This makes the ultraviolet curing device suitable for assembly line operations and also avoids the ultraviolet light from harming the workers. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the ultraviolet curing device for thin metal sheets provided by this utility model. Figure 1 .

[0017] Figure 2 yes Figure 1 Enlarged view of section A.

[0018] Figure 3 This is a schematic diagram of the UV curing lamp after assembly. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the UV curing lamp after assembly. Figure 2 .

[0020] Figure 5 This is a structural breakdown diagram of the UV curing lamp and its housing.

[0021] Figure 6 This is a structural breakdown diagram of the strip-shaped brush.

[0022] Figure 7 This is a schematic diagram of the UV curing lamp after assembly. Figure 3 .

[0023] Figure 8 yes Figure 7 Enlarged view of section B.

[0024] Figure 9 This is a schematic diagram of the structure of the conveying assembly.

[0025] Figure 10 yes Figure 9 Enlarged view of section C.

[0026] Explanation of icon numbers: 1-Conveying assembly; 101-Frame; 102-Conveying mechanism; 1021-Drive roller; 1022-Driven roller; 1023-Driven wheel; 1024-Driven wheel; 1025-Drive belt; 1026-Annular groove; 103-Motor; 2-cover body; 201-recess; 2011-opening; 3-UV curing lamp; 4-Strip brush; 401-Strip brush body; 402-First mounting plate; 4021-Groove; 4022-Mounting hole; 5-Metal sheet; 6-First threaded connector; 7-Nut; 8-Second mounting plate; 9-Second threaded connector; 10-Drive belt support plate; 11-Support partition plate; 12-Support frame; 121-Vertical support plate; 122-Horizontal support plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see Figures 1 to 10 This utility model provides an ultraviolet curing device for a thin metal sheet 5, including a conveying component 1, a cover 2, a UV curing lamp 3, and a strip brush 4.

[0032] The conveying assembly 1 can be used to convey a metal sheet 5 (such as tinplate) with a pattern printed on its surface, and can convey the metal sheet 5 after curing to the unloading area at the end of the printing production line. Specifically, the conveying assembly 1 includes two frames 101 arranged opposite each other and a conveying mechanism 102 disposed between the frames 101.

[0033] The cover 2 is fixed at both ends to two frames 101, its length direction is perpendicular to the conveying direction of the conveying assembly 1, and the cover 2 is located above the conveying mechanism 102. The strip-shaped baffles 4 are fixed to the front and rear sides of the cover 2, and are arranged along the length of the cover 2. A gap is left between the lower end of the strip-shaped baffles 4 and the conveying surface of the conveying mechanism 102 for the metal sheet 5 to pass through. The UV curing lamp 3 can be a UVA-LED curing lamp, a high-pressure mercury lamp, etc., and is installed inside the cover 2, with the light-emitting surface of the UV curing lamp 3 facing downwards. When the metal sheet 5 passes under the UV curing lamp 3, it ensures that the ultraviolet rays generated by the UV curing lamp 3 irradiate downwards onto the surface of the metal sheet 5, thereby performing UV (ultraviolet) curing treatment on the pattern layer on the surface of the metal sheet 5.

[0034] As can be seen, by setting a cover 2 above the conveying mechanism 102 and placing the UV curing lamp 3 inside the cover 2, the UV light can be blocked from leaking through the cover 2. In addition, the strip-shaped baffles 4 set on the front and rear sides of the cover 2 can further block the leakage of UV light from the inlet and outlet channels of the metal sheet 5 below the cover 2, while not affecting the continuous conveying of the metal sheet 5 on the conveying mechanism 102. This allows the UV curing device to be used in assembly line operations while also preventing UV light from harming workers.

[0035] like Figure 4 , Figure 6 as well as Figure 7 As shown, in an optional embodiment, the strip brush 4 includes a strip brush body 401 and a first mounting plate 402 for fixing the strip brush body 401; the first mounting plate 402 is fixed on the outer wall of the cover 2 along the length direction of the cover 2, and the bottom of the first mounting plate 402 is provided with an inverted U-shaped groove 4021 along the length direction of the first mounting plate 402, the upper part of the strip brush body 401 is fixed in the groove 4021, and can be bonded with glue.

[0036] like Figure 4 , Figure 6 as well as Figure 7As shown, in an optional embodiment, the first mounting plate 402 has a plurality of mounting holes 4022 spaced apart along its length. A first threaded connector 6, threaded to the cover 2, is inserted into each mounting hole 4022. This allows the strip-shaped brush 4 to be fixed to the cover 2 via the first threaded connector 6. Furthermore, the multiple mounting holes 4022 enable multi-point fixation of the first mounting plate 402 to the cover 2, improving the firmness of the connection between the strip-shaped brush 4 and the cover 2, and ensuring that the normal conveying of the metal sheet 5 below is not affected. The first threaded connector 6 can be a screw, threaded rod, etc. Correspondingly, the cover 2 has threaded holes that mate with the first threaded connector.

[0037] like Figure 6 As shown, in an optional embodiment, the mounting hole 4022 is a vertically extending, waist-shaped mounting hole 4022. A nut 7 is threaded onto the first threaded connector 6, and the nut 7 presses against the first mounting plate 402, thereby ensuring a stable connection between the first mounting plate 402 and the cover 2. In this embodiment, the vertical extension characteristic of the waist-shaped hole allows the first mounting plate 402 to be flexibly adjusted in the vertical direction when connected to the cover 2. This allows for adjustment of the gap between the lower end of the strip-shaped baffle 4 and the conveying surface of the conveying mechanism 102 according to the actual thickness of the metal sheet 5, ensuring that the metal sheet 5 can pass smoothly under the strip-shaped baffle 4 while maximizing the blocking of ultraviolet light leakage from the gap.

[0038] like Figure 3 and Figure 5 As shown, in an optional embodiment, the top of the cover 2 has a downward-facing recess 201; the UV curing lamp 3 is mounted within the recess 201, and the bottom of the recess 201 has an opening 2011 to ensure that the ultraviolet rays generated by the UV curing lamp 3 can irradiate the conveying mechanism 102 downwards. In this embodiment, the recess 201 structure of the cover 2 simplifies the installation structure of the UV curing lamp 3 and reduces the installation difficulty of the UV curing lamp 3. When installing the UV curing lamp 3, the UV curing lamp can be directly mounted within the recess 201, as long as the emitting surface of the UV curing lamp 3 is within the area covered by the opening 2011.

[0039] like Figure 3As shown, in an optional embodiment, a second mounting plate 8 is horizontally connected to the outer wall of the cover 2, and a second threaded connector 9 is vertically inserted through the second mounting plate 8. The lower end of the second threaded connector 9 is threadedly connected to the frame 101. In this embodiment, the cover 2 can be connected to the frame 101 through the second mounting plate 8 and the second threaded connector 9 on its side. According to the curing requirements of the metal sheet 5, multiple covers 2 can be arranged above the conveying mechanism 102 along the conveying direction of the metal sheet 5, and UV curing lamps can be correspondingly mounted inside the covers 2. This enables multiple sets of UV curing lamps to continuously or segmentally cure the metal sheet 5, improving curing efficiency and curing effect, and ensuring the printing quality of the metal sheet 5.

[0040] like Figure 9 and Figure 10 As shown, in an optional embodiment, the conveying mechanism 102 includes a drive roller 1021 and a driven roller 1022 rotatably disposed between two frames 101, a drive wheel 1023 fixed to the drive roller 1021 and coaxially disposed with respect to the drive roller 1021, a driven wheel 1024 fixed to the driven roller 1022 and coaxially disposed with respect to the driven roller 1022, and a transmission belt 1025 wound around the drive wheel 1023 and the driven wheel 1024. The drive roller 1021 can be driven by a motor 103. Furthermore, the number of drive wheels 1023 and driven wheels 1024 is not less than two, so that multiple parallel transmission belts can be simultaneously arranged on the conveying mechanism 102, which can adapt to metal sheets 5 of different widths and enhance the versatility of the conveying mechanism 102.

[0041] like Figure 9 and Figure 10 As shown, both the drive wheel 1023 and the driven wheel 1024 have annular grooves 1026 on their surfaces; the transmission belt 1025 is wound around the annular grooves 1026. The annular grooves 1026 can precisely limit the position of the transmission belt 1025 wound therein, effectively preventing the transmission belt 1025 from shifting along the wheel axis during operation, further improving the stability of the transmission belt 1025, and avoiding deviation in the conveying position of the metal sheet 5 due to the shift of the transmission belt 1025, which would affect the curing effect.

[0042] like Figure 9 and Figure 10As shown, in an optional embodiment, a transmission belt support plate 10 is fixedly provided between the upper and lower sides of the transmission belt 1025. In this embodiment, the transmission belt support plate 10 can provide stable support for the transmission belt 1025, preventing the transmission belt 1025 from sagging or denting due to the weight of the metal sheet 5 or its own running tension when conveying it. This ensures that the transmission belt 1025 always maintains a flat conveying surface, thereby ensuring that the metal sheet 5 remains in a horizontal and stable state during the conveying process. This also ensures that the UV curing lamp irradiates the ink on the surface of the metal sheet 5 evenly, improving the curing effect.

[0043] like Figure 9 and Figure 10 As shown, in an optional embodiment, a support partition 11 is horizontally fixed between two adjacent frames 101, and a plurality of support frames 12 are distributed at intervals along the length direction of the support partition 11; the support frame 12 includes two opposing support vertical plates 121 and a support horizontal plate 122 horizontally disposed above the two support vertical plates 121, and the support horizontal plate 122 is located between the upper and lower sides of the transmission belt 1025; the transmission belt support plate 10 is mounted on the support horizontal plate 122. In this embodiment, the support partition 11 can provide a stable installation base for the support frame 12, ensuring that the support frame 12 can be firmly fixed between the frames 101. The multiple spaced support frames 12, through the cooperation of the support vertical plate 121 and the support horizontal plate 122, can form a uniform and stable support for the long strip-shaped transmission belt tray 10, avoiding the transmission belt tray 10 from sagging or bending in the middle due to its own length or the weight of the metal sheet 5, further ensuring the stability of the transmission belt tray 10 in supporting the transmission belt 1025, and thus ensuring that the transmission belt 1025 always maintains a flat conveying surface.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An ultraviolet curing apparatus for thin metal sheets, comprising a conveying assembly (1); said conveying assembly (1) comprising two opposing frames (101) and a conveying mechanism (102) disposed between the frames (101); characterized in that, It also includes a cover (2), a UV curing lamp (3), and a strip brush (4); wherein, the two ends of the cover (2) are fixed on two frames (101), and the cover (2) is located above the conveying mechanism (102), and the UV curing lamp (3) is located inside the cover (2); the strip brush (4) is fixed on the front and rear sides of the cover (2), and the strip brush (4) is arranged along the length of the cover (2), and a gap is left between the lower end of the strip brush (4) and the conveying surface of the conveying mechanism (102) for the metal sheet (5) to pass through.

2. The ultraviolet curing apparatus for metal sheets according to claim 1, characterized in that, The strip brush (4) includes a strip brush body (401) and a first mounting plate (402) for fixing the strip brush body (401); the first mounting plate (402) is fixed on the cover (2), and the bottom of the first mounting plate (402) is provided with an inverted U-shaped groove (4021) along the length direction of the first mounting plate (402), and the upper part of the strip brush body (401) is fixed in the groove (4021).

3. The ultraviolet curing apparatus for metal sheets according to claim 2, characterized in that, The first mounting plate (402) has a plurality of mounting holes (4022) spaced apart along the length of the first mounting plate (402), and a first threaded connector (6) that is threadedly connected to the cover (2) is inserted into the mounting holes (4022).

4. The ultraviolet curing apparatus for metal sheets according to claim 3, characterized in that, The mounting hole (4022) is a vertically extending waist-shaped mounting hole. A nut (7) is threaded onto the first threaded connector (6), and the nut (7) presses against the first mounting plate (402).

5. The ultraviolet curing apparatus for metal sheets according to claim 1, characterized in that, The top of the cover (2) has a recess (201) facing downwards; the UV curing lamp (3) is located in the recess (201), and the bottom of the recess (201) has an opening (2011).

6. The ultraviolet curing apparatus for metal sheets according to claim 1, characterized in that, The outer wall of the cover (2) is horizontally connected to a second mounting plate (8), and a second threaded connector (9) is vertically inserted on the second mounting plate (8). The lower end of the second threaded connector (9) is threadedly connected to the frame (101).

7. The ultraviolet curing apparatus for metal sheets according to claim 1, characterized in that, The conveying mechanism (102) includes a drive roller (1021) and a driven roller (1022) rotatably disposed between two frames (101), a drive wheel (1023) fixed on the drive roller (1021) and coaxially disposed with the drive roller (1021), a driven wheel (1024) fixed on the driven roller (1022) and coaxially disposed with the driven roller (1022), and a transmission belt (1025) wound around the drive wheel (1023) and the driven wheel (1024); the number of the drive wheel (1023) and the driven wheel (1024) is not less than two, and the wheel surface of the drive wheel (1023) and the wheel surface of the driven wheel (1024) are provided with annular grooves (1026); the transmission belt (1025) is wound in the annular grooves (1026).

8. The ultraviolet curing apparatus for metal sheets according to claim 7, characterized in that, A transmission belt support plate (10) is fixed between the upper and lower sides of the transmission belt (1025).

9. The ultraviolet curing apparatus for metal sheets according to claim 8, characterized in that, A support partition (11) is horizontally fixed between two adjacent frames (101), and multiple support frames (12) are distributed at intervals along the length direction of the support partition (11); the support frame (12) includes two support vertical plates (121) arranged opposite each other and a support horizontal plate (122) arranged horizontally above the two support vertical plates (121), and the support horizontal plate (122) is located between the upper and lower sides of the transmission belt (1025); the transmission belt support plate (10) is placed on the support horizontal plate (122).

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