UV oiling device for digital printing

Abstract

The utility model belongs to the technical field of digital printing, and particularly relates to a UV (ultraviolet) oil applying device for digital printing, which comprises an oil supply component capable of storing ink and conveying the ink as required, and an oil applying component capable of uniformly coating the ink on the surface of a printed matter is arranged above the oil supply component. And a feeding assembly capable of enabling the device to operate as required and conveying the printed matters is arranged above the oiling assembly. According to the ink coating device, the ink in the ink coating device can be coated on the surface of the oil coating piece only after entering the middle frame and being absorbed by the oil coating sponge in a manner that the oil coating piece capable of coating oil on a printed matter and the oil coating sponge capable of absorbing the ink are jointly mounted in the middle frame and the oil coating piece is positioned above the oil coating sponge, so that the ink can be uniformly coated on the surface of the oil coating piece; therefore, the difference of the thickness of an oil film caused by the fact that the ink directly drips on the oil coating piece is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of digital printing, in particular to a UV oiling device for digital printing. Background Art

[0002] UV printing is a printing process that uses ultraviolet light to dry and cure ink. It requires combining ink containing a photosensitizer with a UV curing lamp. This allows the ink, applied (or sprayed or printed) on the surface of the printed matter, to solidify after exposure, forming a thin, even, transparent, glossy layer. This enhances the surface smoothness of the substrate and protects the printed image. Applying (or spraying or printing) the ink on the surface of the printed matter requires the use of an oiling device.

[0003] A Chinese patent document with authorization publication number CN220973688U discloses a UV oiling device for digital printing. A cam that rotates with the printing roller drives a pressure plate to swing, allowing the ink in the ink cartridge to flow into the oil inlet pipe through the long nozzle pumps when the pressure plate intermittently presses the oil outlet ends of multiple long nozzle pumps upward, and then automatically oils the printing roller through an oiling sponge.

[0004] However, in the existing technology, although the oiling device can automatically apply oil after the printing roller rotates, the ink cannot be evenly dispersed in the oiling sponge due to the intermittent flow from top to bottom and the vibration from the pressure plate, which leads to differences in the thickness of the oil film at different locations on the surface of the printing roller. Therefore, a UV oiling device for digital printing is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a UV oiling device for digital printing.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A UV oiling device for digital printing includes an oil supply assembly capable of storing ink and delivering it when needed, an oiling assembly disposed above the oil supply assembly capable of evenly coating the ink on the surface of a printed matter, and a feeding assembly disposed above the oiling assembly capable of operating the device as needed and delivering the printed matter;

[0008] The oiling assembly includes an oil storage part that can hold a certain amount of ink supplied by the oil supply assembly, an oiling part that can apply the adhered ink to the printed matter, and an oiling part that can enable the oiling part to continuously form an oil film of uniform thickness at all locations where the oiling part contacts the printed matter.

[0009] The oil storage component includes an intermediate frame fixedly connected to the oil supply assembly, and sealing frames are fixedly connected to both sides of the intermediate frame;

[0010] The oil brushing part comprises a first roller seat fixedly connected to the sealing frame, a transmission roller is movably connected between the first roller seats, and an oiling sponge is fixedly connected to the outer side of the transmission roller.

[0011] Preferably, the oiling member comprises a second roller seat fixedly connected to the sealing frame, and a brush roller is movably connected between the second roller seats.

[0012] Preferably, the oil brushing member further comprises a first gear fixedly connected to one end of the transmission roller, and one end of the brush roller is fixedly connected to a second gear.

[0013] Preferably, the first roller seat is rotatably connected to the transmission roller, and the second roller seat is rotatably connected to the brush roller.

[0014] Preferably, the first gear is meshingly connected with the second gear.

[0015] Preferably, the oil inlet end of the intermediate frame is arranged at the bottom and the oil outlet end is arranged at the rear, the center line of the oil inlet end of the intermediate frame is vertical and perpendicular to the axis of the transmission roller, and the center line of the oil outlet end of the intermediate frame is horizontal and perpendicular to the axis of the transmission roller.

[0016] The beneficial effects of the present invention are as follows: by installing the oiling part that can apply oil to printed materials and the oiling sponge that can absorb ink together in the intermediate frame, and positioning the oiling part above the oiling sponge, the ink in the device can be applied to the surface of the oiling part only after entering the intermediate frame and being absorbed by the oiling sponge, thereby avoiding the difference in oil film thickness caused by the ink directly dripping on the oiling part; the oiling sponge can be immersed in the ink of the oil storage part to a constant depth through the oil supply component, and the oiling sponge can be driven to rotate continuously by the transmission roller, thereby ensuring that the amount of ink absorbed by each part of the oiling sponge is consistent, so as to further ensure the subsequent oiling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural diagram of a UV oiling device for digital printing described in the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of a UV oiling device for digital printing described in the utility model;

[0020] Figure 3 yes Figure 1 Schematic diagram of the structure of some parts;

[0021] Figure 4 yes Figure 3Schematic diagram of the structure of some parts;

[0022] Figure 5 yes Figure 4 A schematic diagram of an isometric enlarged cross-sectional structure;

[0023] Figure 6 yes Figure 4 Exploded diagram of some parts.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Oil supply assembly; 101. Base frame; 102. Storage tank; 103. Pump; 104. Oil supply pipe; 105. Return pipe; 2. Oiling assembly; 201. Intermediate frame; 202. Sealing frame; 203. First roller seat; 204. Drive roller; 205. Oiling sponge; 206. Second roller seat; 207. Brush roller; 208. First gear; 209. Second gear; 3. Feeding assembly; 301. Top frame; 302. Third roller seat; 303. Rotating roller; 304. Motor; 305. First pulley; 306. Second pulley; 307. Belt. DETAILED DESCRIPTION

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] The present invention will be further described below through embodiments in conjunction with the accompanying drawings.

[0029] like Figures 1-6 As shown, a UV oiling device for digital printing includes an oil supply component 1 that can store ink and transport it when needed, an oiling component 2 that can evenly apply ink on the surface of the printed matter is arranged above the oil supply component 1, and a feeding component 3 that can enable the device to operate on demand and transport the printed matter is arranged above the oiling component 2.

[0030] In this embodiment, the oil supply assembly 1 includes a base frame 101, a storage tank 102 is fixedly installed in the base frame 101, a pump 103 is fixedly installed above the storage tank 102, an oil supply pipe 104 is provided between the pump 103 and the oil inlet end of the intermediate frame 201, and a return pipe 105 is provided between the storage tank 102 and the oil outlet end of the intermediate frame 201;

[0031] The base frame 101 provides an installation position for the storage tank 102 and the intermediate frame 201. The ink in the storage tank 102 is extracted by the pump 103 and injected into the intermediate frame 201 along the oil supply pipe 104. The excess ink in the intermediate frame 201 is guided back to the storage tank 102 through the return pipe 105.

[0032] In this embodiment: the oiling component 2 includes an oil storage part that can accommodate a certain amount of ink supplied by the oil supply component 1, an oiling part that can apply the adhered ink to the printed matter, and an oiling brush part that can enable the oiling part to contact all positions of the printed matter to continuously form an oil film of uniform thickness. The oil storage part includes an intermediate frame 201 fixedly connected to the oil supply component 1, and sealing frames 202 are fixedly connected on both sides of the intermediate frame 201. The oiling brush part includes a first roller seat 203 fixedly connected to the sealing frame 202, a transmission roller 204 is movably connected between the first roller seats 203, and an oiling sponge 205 is fixedly connected to the outer side of the transmission roller 204. The oiling part includes a second roller seat 206 fixedly connected to the sealing frame 202, a brush roller 207 is movably connected between the second roller seats 206, and the oiling brush part also includes a first gear 208 fixedly connected to one end of the transmission roller 204, and a second gear 209 is fixedly connected to one end of the brush roller 207;

[0033] The first roller seat 203 is rotatably connected to the transmission roller 204, the second roller seat 206 is rotatably connected to the brush roller 207, the first gear 208 is meshed with the second gear 209, the oil inlet end of the intermediate frame 201 is arranged at the bottom, and the oil outlet end is arranged at the rear, the center line of the oil inlet end of the intermediate frame 201 is vertical and perpendicular to the axis of the transmission roller 204, and the center line of the oil outlet end of the intermediate frame 201 is horizontal and perpendicular to the axis of the transmission roller 204;

[0034] The openings on both sides of the intermediate frame 201 are sealed by the sealing frame 202 to prevent ink entering the intermediate frame 201 from leaking, so that the ink in the intermediate frame 201 can only enter the return pipe 105 and return to the storage tank 102 when it reaches the height of the oil outlet end of the intermediate frame 201. The transmission roller 204 is installed in the intermediate frame 201 through the first roller seat 203, so that the transmission roller 204 can drive the oil sponge 205 to rotate in the intermediate frame 201, and the oil sponge 205 continuously absorbs the ink in the intermediate frame 201. The brush roller 207 is installed in the intermediate frame 201 at a certain height above the oil sponge 205 through the second roller seat 206, so that the brush roller 207 can apply appropriate pressure to the oil sponge 205, so that the oil sponge 205 can apply the absorbed ink to the brush roller 207 that can contact the printed matter. The rotation of the transmission roller 204 is transmitted to the brush roller 207 through the first gear 208 and the second gear 209, and the brush roller 207 rotates in the opposite direction to the rotating roller 303.

[0035] In this embodiment: the feeding assembly 3 includes a top frame 301 fixedly connected to the middle frame 201, third roller seats 302 fixedly connected to both sides of the top frame 301, a roller 303 movably connected between the third roller seats 302, one end of the roller 303 is fixedly connected to a motor 304, the other end of the roller 303 is fixedly connected to a first pulley 305, one end of the transmission roller 204 is fixedly connected to a second pulley 306, and a belt 307 is provided between the first pulley 305 and the second pulley 306;

[0036] The third roller seat 302 is rotatably connected to the rotating roller 303; the top frame 301 provides an installation position for the third roller seat 302 and the motor 304, and the motor 304 drives the rotating roller 303 to rotate relative to the third roller seat 302. The rotating roller 303 drives the printed matter located between the brush roller 207 and the rotating roller 303 to move longitudinally in the device, and the rotation of the rotating roller 303 is transmitted to the transmission roller 204 through the first pulley 305, the belt 307, and the second pulley 306.

[0037] Working Principle: When this device is used for UV oiling in digital printing, the first pulley 305, the second pulley 306, the first gear 208, and the second gear 209 with appropriate transmission ratios are selected to ensure that the brush roller 207 and the rotating roller 303 have the same rotation speed but opposite directions, and there is a certain speed difference between the oiling sponge 205 and the transmission roller 204.

[0038] After selection and installation, the motor 304 drives the roller 303, the brush roller 207, and the transmission roller 204 to operate together, and the pump 103 works to realize the flow of ink between the storage tank 102 and the intermediate frame 201;

[0039] When the printed matter passes between the brush roller 207 and the rotating roller 303, since the brush roller 207 and the oil sponge 205 are in contact with each other and there is a certain rotation speed difference, the oil sponge 205, which is continuously immersed in the ink in the middle frame 201 to a certain depth, can continuously evenly apply a layer of oil film on the surface of the brush roller 207 with the absorbed ink, so that the brush roller 207 can evenly apply oil to the printed matter.

[0040] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A UV oiling device for digital printing, characterized by: The invention comprises an oil supply assembly (1) capable of storing ink and delivering it when needed, an oiling assembly (2) capable of evenly coating the ink on the surface of a printed matter being arranged above the oil supply assembly (1), and a feeding assembly (3) capable of enabling the device to operate as needed and delivering the printed matter being arranged above the oiling assembly (2); The oiling assembly (2) includes an oil storage part capable of accommodating a certain amount of ink supplied by the oil supply assembly (1), an oiling part capable of applying the adhered ink to the printed matter, and an oiling part capable of enabling the oiling part to continuously form an oil film of uniform thickness at all positions where the oiling part contacts the printed matter; The oil storage member comprises an intermediate frame (201) fixedly connected to the oil supply assembly (1), and sealing frames (202) are fixedly connected to both sides of the intermediate frame (201); The oil brushing member comprises a first roller seat (203) fixedly connected to the sealing frame (202), a transmission roller (204) is movably connected between the first roller seat (203), and an oiling sponge (205) is fixedly connected to the outer side of the transmission roller (204).

2. A UV oiling device for digital printing according to claim 1, characterized in that: The oiling member comprises a second roller seat (206) fixedly connected to the sealing frame (202), and a brush roller (207) is movably connected between the second roller seat (206).

3. The UV oiling device for digital printing according to claim 2, characterized in that: The oil brushing member further comprises a first gear (208) fixedly connected to one end of the transmission roller (204), and one end of the brush roller (207) is fixedly connected to a second gear (209).

4. The UV oiling device for digital printing according to claim 2, characterized in that: The first roller seat (203) is rotationally connected to the transmission roller (204), and the second roller seat (206) is rotationally connected to the brush roller (207).

5. The UV oiling device for digital printing according to claim 3, characterized in that: The first gear (208) is meshedly connected with the second gear (209).

6. The UV oiling device for digital printing according to claim 1, characterized in that: The oil inlet end of the intermediate frame (201) is arranged at the bottom, and the oil outlet end is arranged at the rear. The center line of the oil inlet end of the intermediate frame (201) is in a vertical state and perpendicular to the axis of the transmission roller (204), and the center line of the oil outlet end of the intermediate frame (201) is in a horizontal state and perpendicular to the axis of the transmission roller (204).

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