Nitrogen filling structure of digital printing curing lamp

By blowing nitrogen into the curing lamp of the digital printing equipment to reduce the oxygen concentration, the problem of poor curing effect was solved, the production quality of roll paper film was improved, and a simple and effective curing effect was achieved.

CN223507973UActive Publication Date: 2025-11-04GUANGZHOU PULISI TECH CO LTD
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Patent Information

Application Number
CN202421861402.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-02
Publication Date
2025-11-04
Estimated Expiration
2034-08-02

AI Technical Summary

Technical Problem

In digital printing equipment, a high oxygen concentration inside the curing lamp leads to poor curing of UV inks, affecting the production quality of roll paper film.

Method used

A nitrogen-filled structure for a digital printing curing lamp is designed. Nitrogen is blown into the curing lamp through an air knife to reduce the oxygen concentration. The angle and gap of the nitrogen blowing in are adjusted by the adjustable angle and position of the air knife to prevent the nitrogen from blowing directly onto the paper roll material film.

Benefits of technology

Without changing the initiator content in the UV ink, the curing effect is improved, the production quality of the roll film is enhanced, nitrogen vibration is prevented, and the operation is convenient.

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Abstract

The utility model discloses a digital printing curing lamp nitrogen filling structure which comprises an air knife, the two ends of the air knife are connected with adjusting plates in a rotatable angle mode, the adjusting plates are fixedly connected with the bottom end of a fixing plate, and the fixing plate is used for being installed on a digital printing machine frame in a positioning mode. Wherein at least two air inlet connectors are arranged on the lower end face of the air knife, a ventilating duct is arranged in the air knife in the length direction of the air knife, the air inlet connectors are communicated with a plurality of air outlets formed in the two sides of the air knife through the ventilating duct, and the air outlets are used for blowing nitrogen into the curing lamp. According to the device, nitrogen is conveniently blown into the curing lamp, so that under the condition that the content of an initiator in uv ink is not changed, the oxygen concentration in the curing lamp can be reduced by blowing the nitrogen into the curing lamp, the problem that the curing effect is poor due to the fact that the oxygen concentration in the curing lamp is high is solved, and the production quality of a roll paper material film is improved.
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Description

Technical Field

[0001] This utility model relates to the field of digital printing equipment technology, specifically to a nitrogen-filled structure for a digital printing curing lamp. Background Technology

[0002] In the existing curing lamp mounting structure of digital printing equipment, such as Figure 1 The schematic diagram of the digital printing curing lamp application state shows that by installing a curing lamp 7 on the digital printing frame 6, the paper roll material film is cured through the curing lamp 7 during the printing process. However, during the curing process, the UV ink attached to the paper roll material film enters the curing lamp 7 for curing. However, when there is oxygen inside the curing lamp 7, it will affect the curing effect of the UV ink inside the curing lamp 7. Tests within the range show that the higher the oxygen concentration, the lower the curing efficiency of the initiator in the UV ink, thus affecting the curing effect of the paper roll material film. Utility Model Content

[0003] The purpose of this invention is to provide a nitrogen-filled structure for a digital printing curing lamp, which solves the problem of poor curing effect of roll paper material film in the prior art.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A nitrogen-filled structure for a digital printing curing lamp includes an air knife, with adjustable plates rotatably connected to both ends of the air knife. The adjustable plates are fixedly connected to the bottom end of a fixed plate, which is used for positioning and mounting on a digital printing machine frame.

[0006] The air knife has at least two air inlet connectors on its lower end face, and a ventilation channel is provided along the length of the air knife and inside it. The air inlet connectors are connected to multiple air outlets opened on both sides of the air knife through the ventilation channel. The air outlets are used to blow nitrogen into the curing lamp.

[0007] As a further embodiment of this utility model: one side of the air knife is provided with an integral docking post, which is rotatably connected to the adjustment strip hole opened on the adjustment plate by screws, and the relative position between the docking post and the adjustment plate is fixed by screws; the other side of the air knife is provided with an integral docking protrusion, which is rotatably connected to the adjustment strip hole opened on the adjustment plate, and the relative position between the docking protrusion and the adjustment plate is fixed by screws.

[0008] As a further scheme of the present application, the butt joint column can also slide along the adjusting strip hole through a screw, and the relative position between the butt joint column and the adjusting plate is fixed through the screw.

[0009] As a further scheme of the present application, an inclined flow guide plate is arranged on one side length side edge of the air knife.

[0010] As a further scheme of the present application, the length specification of the air knife is 400 mm.

[0011] The present application has the following beneficial effects:

[0012] (1) The present application facilitates blowing nitrogen into the curing lamp, so that the oxygen concentration in the curing lamp can be reduced without changing the initiator content in the uv ink, thereby solving the problem of poor curing effect caused by high oxygen concentration in the curing lamp, and helping to improve the production quality of the paper material film.

[0013] (2) In the installation process of the air knife, the rotation angle position and the sliding position of the air knife are both distributed for easy adjustment, so that the angle and gap distance position of the air knife for blowing nitrogen into the curing lamp can be easily adjusted, and the operation is convenient.

[0014] (3) By arranging an inclined flow guide plate on one side length side edge of the air knife, the inclined flow guide plate can block and guide the nitrogen, prevent the nitrogen from being directly blown to the paper material film to cause shaking, and guide the nitrogen into the curing lamp, which is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below with reference to the drawings.

[0016] Figure 1 is a schematic diagram of the application state structure of the digital printing curing lamp in the prior art;

[0017] Figure 2 is a schematic diagram of the one-side structure of the present application;

[0018] Figure 3 is a schematic diagram of the other-side structure of the present application;

[0019] Figure 4 is a schematic diagram of the adjusting strip hole arranged on the adjusting plate of the present application;

[0020] Figure 5 is a schematic diagram of the one-side structure of the air knife of the present application;

[0021] Figure 6 is another side structure schematic view of the utility model;

[0022] Figure 7 is the application state structure schematic view of the utility model.

[0023] In the figure: 1, air knife; 10, butt joint column; 11, butt joint boss; 2, adjusting plate; 20, adjusting strip hole; 3, fixed plate; 4, air inlet joint; 5, air outlet; 6, digital printing frame; 7, curing lamp; 8, drainage plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with 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. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] In the description of the utility model, it is understood that the terms indicating the position or location relationship are based on the position or location relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific position, a specific position structure and operation, therefore, it cannot be understood as the limitation of the utility model; in the description of the utility model, the meaning of "multiple" "several" is at least two, for example, two, three, etc., unless there is a clear specific limitation.

[0026] Please refer to Figures 2 to 7 The utility model discloses a kind of digital printing curing lamp nitrogen filling structures, including air knife 1, the both ends of air knife 1 can rotate angle connection adjusting plate 2, adjusting plate 2 fixedly connected with the bottom end of fixed plate 3, fixed plate 3 is used for positioning installation on digital printing frame 6;Among them, at least two air inlet joints 4 are provided on the lower end surface of air knife 1, ventilation passage is provided along the length direction of air knife 1 and in its interior, air inlet joint 4 is communicated with the multiple air outlets 5 opened on the both sides of air knife 1 by ventilation passage, air outlet 5 is used to blow nitrogen into curing lamp 7.

[0027] In the installation process of the nitrogen-filling structure of the digital printing curing lamp 7 of the present application, the nitrogen-filling structure of the present application is installed as a whole on the digital printing rack 6 through the fixing plate 3, the air inlet joint 4 on the lower end face of the air knife 1 is introduced into the nitrogen gas conveying air path, the introduced nitrogen gas is conveyed from the ventilation channel inside the air knife 1 to the air outlet 5 for discharge, so as to facilitate the blowing of nitrogen gas into the curing lamp 7, so as to reduce the oxygen concentration inside the curing lamp 7 without changing the initiator content in the uv ink, thereby solving the problem of poor curing effect caused by high oxygen concentration in the curing lamp 7, thereby helping to improve the production quality of the material film of the rolled paper.

[0028] In the specific embodiment, as shown in Figures 4 to 6 , one side end of the air knife 1 is provided with an integrated docking column 10, the docking column 10 is rotatably connected in the adjusting strip hole 20 of the adjusting plate 2 through a screw, and the relative position between the docking column 10 and the adjusting plate 2 is fixed through a screw; the other side end of the air knife 1 is provided with an integrated docking block 11, the docking block 11 is rotatably connected in the adjusting strip hole 20 of the adjusting plate 2, and the relative position between the docking block 11 and the adjusting plate 2 is fixed through a screw; in the installation process of the air knife 1 of the present application, the fixing plate 3 and the adjusting plate 2 are fixedly installed, so as to facilitate the angle adjustment of the air knife 1 along the adjusting plate 2, so as to adjust the angle of the nitrogen gas blown into the curing lamp 7 by the air knife 1, the specific operation is to loosen the screw on the docking column 10 at one side end of the air knife 1, the loosened screw on the docking column 10 is rotated along the adjusting strip hole 20, and the docking block 11 at the other side end of the air knife 1 is directly rotated along the adjusting strip hole 20, so as to facilitate the adjustment of the rotation angle of the air knife 1, and after the adjustment is completed, the air knife 1 is locked and fixed at the two side ends through a screw, which is convenient to operate.

[0029] In the specific embodiment, as shown in Figures 4 to 6 , the docking column 10 can also slide along the adjusting strip hole 20 through a screw, and the relative position between the docking column 10 and the adjusting plate 2 is fixed through a screw; the docking block 11 can also slide along the adjusting strip hole 20, and the relative position between the docking block 11 and the adjusting plate 2 is fixed through a screw; in the installation process of the air knife 1 of the present application, the fixing plate 3 and the adjusting plate 2 are fixedly installed, so as to facilitate the sliding adjustment of the air knife 1 along the adjusting plate 2, so as to adjust the distance position of the nitrogen gas blown into the curing lamp 7 by the air knife 1, the specific operation is to loosen the screw on the docking column 10 at one side end of the air knife 1, the loosened screw on the docking column 10 is slid along the adjusting strip hole 20, and the docking block 11 at the other side end of the air knife 1 is directly slid along the adjusting strip hole 20, so as to facilitate the adjustment of the sliding position of the air knife 1, and after the adjustment is completed, the air knife 1 is locked and fixed at the two side ends through a screw, which is convenient to operate.

[0030] In the specific embodiment, as shown in Figure 5 and Figure 6As shown, the inclined flow guide plate 8 is arranged on one side length side of the air knife 1, the arranged inclined flow guide plate 8 can block the nitrogen flow, can prevent the nitrogen from directly blowing to the paper material film and causing the shaking, meanwhile, the arranged flow guide plate 8 can block the nitrogen flow to the curing lamp 7, convenient to operate.

[0031] In the embodiment, the length specification of the air knife 1 is 400mm, so that the air knife 1 can meet the needs of the digital printing curing production of the paper material film.

[0032] The above has carried out the detailed explanation to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equivalent changes and improvements made according to the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. A nitrogen-filled structure for a digital printing curing lamp, characterized by, Including air knife (1), both ends of the air knife (1) can be rotatable angle connection adjusting plate (2), the adjusting plate (2) fixedly connected with the bottom end of the fixed plate (3), the fixed plate (3) is used for positioning installation on the digital printing machine frame (6); Wherein, the lower end surface of the air knife (1) is provided with at least two air inlet joints (4), a ventilation channel is arranged along the length direction of the air knife (1) and inside it, the air inlet joint (4) is communicated with a plurality of air outlets (5) opened on both sides of the air knife (1) through the ventilation channel, and the air outlet (5) is used for blowing nitrogen into the curing lamp (7).

2. A nitrogen filled structure for a digital printing curing lamp according to claim 1, wherein One side end of the air knife (1) is provided with an integrated docking column (10), the docking column (10) is rotatably connected in the adjusting strip hole (20) opened on the adjusting plate (2) through a screw, and the relative position between the docking column (10) and the adjusting plate (2) is fixed by a screw; the other side end of the air knife (1) is provided with an integrated docking block (11), the docking block (11) is rotatably connected in the adjusting strip hole (20) opened on the adjusting plate (2), and the relative position between the docking block (11) and the adjusting plate (2) is fixed by a screw.

3. A nitrogen filled structure for a digital printing curing lamp according to claim 2, wherein The docking column (10) can also slide along the adjusting strip hole (20) through a screw, and the relative position between the docking column (10) and the adjusting plate (2) is fixed by a screw; the docking block (11) can also slide along the adjusting strip hole (20), and the relative position between the docking block (11) and the adjusting plate (2) is fixed by a screw.

4. A nitrogen filled structure for a digital printing curing lamp according to claim 1, wherein The length side of one side of the air knife (1) is provided with a drainage plate (8) obliquely.

5. A nitrogen filled structure for a digital printing curing lamp according to claim 1, wherein The length specification of the air knife (1) is 400mm.