Printing roller of UV printing machine

Abstract

The utility model discloses a UV printing machine printing roller which comprises a printing roller body, the interior of the printing roller body is designed to be of a hollow structure, a heat dissipation center pipe is arranged in the center of the interior of the printing roller body, and a plurality of first-level heat conduction fins are fixedly connected to the outer wall of the heat dissipation center pipe. The multiple first-stage heat conduction fins are circumferentially distributed at equal intervals through the center circle point of the heat dissipation center pipe, the outer surface of the top end of each first-stage heat conduction fin is fixedly connected with a heat dissipation branch pipe, the outer wall of each heat dissipation branch pipe is fixedly connected with a second-stage heat conduction fin, and the top ends of the second-stage heat conduction fins are fixedly connected with the inner wall of the printing roller body. The printing roller can complete heat exchange treatment on heat, so that the printing roller body can be helped to be subjected to secondary cooling and heat dissipation treatment, the comprehensive heat conduction, heat exchange and heat dissipation quality of the roller body is improved, the good cooling and heat dissipation use effect is achieved, adverse effects caused by heating of the printing roller can be effectively avoided, and the overall printing quality of the printing roller is improved; the printing effect of the printer is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to UV printing machine structure technical field, concretely is a kind of UV printing machine printing roller. BACKGROUND

[0002] UV printing machine is a kind of special printing equipment using ultraviolet (UV) irradiation makes the photosensitive material that is smeared on printing material fast curing. It is mainly used for printing on the surface of various materials color photo level, with the characteristics of high efficiency, high quality;

[0003] UV printing machine needs to use printing roller when printing, printing roller will rub with paper frequently in use, to cause printing roller to heat, printing roller heats after producing adverse effect to contact paper and ink and other contact objects, reduce printing effect, for this purpose, the utility model provides a kind of UV printing machine printing roller that can carry out water cooling heat dissipation. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of UV printing machine printing roller to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of UV printing machine printing roller, including printing roller body, the inside of the printing roller body is hollow structure design, the inside center position of the printing roller body is provided with heat dissipation center pipe, the outer wall of the heat dissipation center pipe is fixedly connected with a plurality of first heat conduction fins, a plurality of the first heat conduction fins are distributed by the center dot equidistant circumferential distribution of heat dissipation center pipe, the top outer surface of each first heat conduction fin is fixedly connected with heat dissipation branch pipe, the outer wall of each heat dissipation branch pipe is fixedly connected with second heat conduction fin, and the top of the second heat conduction fin is fixedly connected with the inner wall of printing roller body.

[0006] Preferably, a plurality of heat dissipation branch pipes are distributed by the center dot equidistant circumferential distribution of heat dissipation center pipe, and the diameter of the heat dissipation branch pipe is less than the diameter of the heat dissipation center pipe.

[0007] Preferably, the second heat conduction fin adopts fan-shaped structure design.

[0008] Preferably, the outer wall of one end of the heat dissipation center pipe and the heat dissipation branch pipe is provided with liquid injection port, and the liquid injection port is plugged with sealing plug.

[0009] Preferably, the outer wall of both ends of the printing roller body is detachably installed with outer sealing cover by bolt, and the outer surface center position of the outer sealing cover is fixedly installed with roller body shaft.

[0010] Preferably, the outer wall of the roller body shaft is fixedly provided with transmission gear.

[0011] Compared with the prior art, the printing roller body has the advantages that:

[0012] When the outer surface of the printing roller body generates heat due to friction, the heat can be transferred to the heat dissipation branch pipes through the secondary heat conduction fins, so that the heat exchange treatment can be performed on the heat through the refrigerant liquid in the heat dissipation branch pipes, thereby helping to preliminarily cool the printing roller body, and achieving the use purpose of heat exchange cooling and heat dissipation.

[0013] When the refrigerant liquid in the heat dissipation branch pipes is heated, the heat generated after heating can be transferred to the heat dissipation center pipe through the primary heat conduction fins, and since the heat dissipation center pipe is filled with a large amount of refrigerant liquid, the heat generated on the outer surface of the printing roller body during operation can be introduced into the heat dissipation center pipe through the two groups of heat conduction fins, so that the heat exchange treatment can be performed on the heat through the refrigerant liquid in the heat dissipation center pipe, thereby helping to perform secondary cooling and heat dissipation treatment on the printing roller body, improving the comprehensive heat conduction, heat exchange and heat dissipation quality of the roller body, and effectively avoiding the adverse effects of heat generation of the printing roller, improving the overall printing quality of the printing roller, and ensuring the printing effect of the printing machine.

[0014] Meanwhile, the two ends of the printing roller are provided with outer sealing covers installed through bolts, so that the interior of the roller body can be quickly opened and maintained, the structure is more flexible and convenient to use, and the practicality is higher, and the printing roller is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a schematic view of the overall structure of the printing roller body of the utility model embodiment;

[0016] Fig. 2 It is a schematic view of the internal structure of the printing roller body port of the utility model embodiment;

[0017] Fig. 3 It is a schematic view of the internal plane structure of the printing roller body of the utility model embodiment.

[0018] In the drawing: 1, printing roller body; 2, heat dissipation center pipe; 3, primary heat conduction fin; 4, heat dissipation branch pipe; 5, secondary heat conduction fin; 6, liquid injection port; 7, outer sealing cover; 8, roller body shaft; 9, transmission gear. DETAILED DESCRIPTION

[0019] The technical scheme in the utility model embodiments will be clearly and completely described below with reference to the drawings in the utility model embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external", "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the orientation or position relation is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element must have a particular orientation, a particular orientation and operation, therefore it cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "installation", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, or detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be directly connected, or indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Please refer to Figs. 1-3 The utility model provides an embodiment: a kind of UV printing machine printing roller, the inside of printing roller body 1 is hollow structure design, the inside center position of printing roller body 1 is provided with heat dissipation center tube 2, a plurality of primary heat conduction fins 3 are fixedly connected on the outer wall of heat dissipation center tube 2, a plurality of primary heat conduction fins 3 are distributed by the center dot equidistant circumferential distribution of heat dissipation center tube 2, the top end outer surface of each primary heat conduction fin 3 is fixedly connected with heat dissipation branch pipe 4, the outer wall of each heat dissipation branch pipe 4 is fixedly connected with secondary heat conduction fin 5, and the top end of secondary heat conduction fin 5 is fixedly connected with the inner wall of printing roller body 1;

[0023] Among them, in order to improve the contact heat conduction area between secondary heat conduction fin 5 and printing roller body 1, referring to the description of the drawings Fig. 2 And Fig. 3 As shown in the figure, secondary heat conduction fin 5 adopts fan-shaped structure design;

[0024] According to the above structure, when the utility model printing roller is used, heat dissipation center tube 2 and a plurality of heat dissipation branch pipes 4 are injected with refrigerant for heat exchange and heat dissipation, when the outer surface of printing roller body 1 appears heating phenomenon due to friction, the heat of heating can be transmitted to heat dissipation branch pipe 4 through a plurality of secondary heat conduction fins 5, so that the heat exchange treatment can be carried out with the heat introduced through the refrigerant in the heat dissipation branch pipe 4, which can help printing roller body 1 to carry out preliminary cooling treatment, so as to achieve the use purpose of heat exchange cooling and heat dissipation;

[0025] When the refrigerant liquid inside the heat dissipation branch pipe 4 is heated, the heat after heating can be transmitted to the inside of the heat dissipation center pipe 2 through the first heat conduction fin 3. Since the heat dissipation center pipe 2 is filled with a large amount of refrigerant liquid, the heat generated on the outer surface of the printing roller body 1 during operation can be introduced into the heat dissipation center pipe 2 through the two groups of heat conduction fins, so that the heat exchange treatment of the heat is completed through the refrigerant liquid inside the heat dissipation center pipe 2, thereby helping the printing roller body 1 to perform secondary cooling and heat dissipation treatment, improving the comprehensive heat conduction, heat exchange and heat dissipation quality of the roller body, and having good cooling and temperature reduction effect, which can effectively avoid the adverse effects of heating of the printing roller, improve the overall printing quality of the printing roller, and ensure the printing effect of the printing machine.

[0026] Furthermore, the circumferential heat conduction fins can effectively increase the contact area with the printing roller body 1, thereby effectively improving the heat conduction effect and having good practicality.

[0027] In actual use, the heat dissipation center pipe 2, the first heat conduction fin 3, the heat dissipation branch pipe 4 and the second heat conduction fin 5 can be made of high-heat-conducting metal materials.

[0028] In this embodiment, the plurality of heat dissipation branch pipes 4 are distributed at equal intervals around the center point of the heat dissipation center pipe 2, and the diameter of the heat dissipation branch pipe 4 is smaller than the diameter of the heat dissipation center pipe 2.

[0029] In this embodiment, in order to facilitate the injection of refrigerant liquid into the heat dissipation center pipe 2 and the heat dissipation branch pipe 4, a liquid injection port 6 is formed on the outer wall of one end of the heat dissipation center pipe 2 and the heat dissipation branch pipe 4, so that the liquid injection port 6 can be used to inject the refrigerant liquid for heat dissipation.

[0030] In order to seal the liquid injection port 6, a sealing plug is inserted into the liquid injection port 6.

[0031] In this embodiment, in order to ensure the normal use effect of the printing roller of the utility model, the outer sealing cover 7 is detachably installed on the outer wall of both ends of the printing roller body 1 through bolts, the inner part of the printing roller body 1 can be sealed by the outer sealing cover 7, the bolt installation mode can also facilitate opening and maintenance, the structure is more flexible and convenient to use, the outer surface of the outer sealing cover 7 is fixedly installed with a roller shaft 8 at the center position, the roller shaft 8 can be installed on the printing machine to ensure normal use.

[0032] Further, in order to drive the roller shaft 8 to rotate, a transmission gear 9 is fixedly sleeved on the outer wall of the roller shaft 8. The transmission gear 9 can be driven to rotate after being meshed and connected with the driving motor and the driving gear 9, so as to ensure the normal rotation of the roller body.

[0033] Working principle: the printing roller of the utility model can respectively inject refrigerant liquid to the heat dissipation center pipe 2 and the heat dissipation branch pipe 4 through the plurality of liquid injection ports 6;

[0034] The liquid injection port 6 can be sealed by the sealing plug after the injection is completed;

[0035] In specific use, the inside of the printing roller body 1 can be sealed by the outer sealing cover 7, and the bolt mounting mode can also facilitate opening and maintenance, so that the structure is more flexible and convenient to use; the roller body shaft 8 is fixedly installed at the center position of the outer surface of the outer sealing cover 7, and the printing machine can be installed by the roller body shaft 8, so that normal use is ensured;

[0036] Further, in order to drive the rotation of the roller body shaft 8, the transmission gear 9 is fixedly sleeved on the outer wall of the roller body shaft 8; the transmission gear 9 can be driven to rotate by the external driving motor and the driving gear 9 after the printing roller is installed, so that the normal rotation printing work of the roller body is ensured;

[0037] When the outer surface of the printing roller body 1 generates heat due to friction, the heat can be transferred to the heat dissipation branch pipe 4 through the plurality of secondary heat conduction fins 5, so that the heat exchange treatment can be performed on the heat conduction fins 5 by the refrigerant liquid in the heat dissipation branch pipe 4, so as to help the printing roller body 1 to be preliminarily cooled, so as to achieve the heat exchange cooling and heat dissipation purpose;

[0038] When the refrigerant liquid in the heat dissipation branch pipe 4 is heated, the heat can be transferred to the heat dissipation center pipe 2 through the primary heat conduction fin 3, so that the heat generated by the printing roller body 1 during work can be introduced into the heat dissipation center pipe 2 through the two groups of heat conduction fins, so that the heat exchange treatment can be completed on the heat dissipation center pipe 2 by the refrigerant liquid in the heat dissipation center pipe 2, so as to help the printing roller body 1 to be secondarily cooled and heat dissipated, improve the comprehensive heat conduction, heat exchange and heat dissipation quality of the roller body, and effectively avoid the adverse effects of the heating of the printing roller, improve the overall printing quality of the printing roller, and ensure the printing effect of the printing machine;

[0039] And the plurality of circumferential heat conduction fins can effectively increase the contact area between the printing roller body 1 and the printing roller body 1, so as to effectively improve the heat conduction effect, and have good practicability.

[0040] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A printing roller for a UV printing machine, comprising a printing roller body (1), characterized in that, The printing roller body (1) has a hollow structure. A heat dissipation center tube (2) is provided at the center of the printing roller body (1). Several primary heat-conducting fins (3) are fixedly connected to the outer wall of the heat dissipation center tube (2). The several primary heat-conducting fins (3) are circumferentially distributed at equal intervals through the center point of the heat dissipation center tube (2). A heat dissipation branch tube (4) is fixedly connected to the outer surface of the top of each primary heat-conducting fin (3). A secondary heat-conducting fin (5) is fixedly connected to the outer wall of each heat dissipation branch tube (4). The top of the secondary heat-conducting fin (5) is fixedly connected to the inner wall of the printing roller body (1).

2. The printing roller for a UV printing machine according to claim 1, characterized in that: Several heat dissipation branch pipes (4) are distributed circumferentially at equal intervals through the central point of the heat dissipation central pipe (2), and the diameter of the heat dissipation branch pipes (4) is smaller than the diameter of the heat dissipation central pipe (2).

3. A UV printing roller according to claim 1, characterized in that: The secondary heat-conducting fins (5) adopt a fan-shaped structure design.

4. A UV printing roller according to claim 1, characterized in that: Both the heat dissipation center pipe (2) and the heat dissipation branch pipe (4) have a liquid injection port (6) on one end of their outer wall, and the liquid injection port (6) is filled with a sealing plug.

5. A UV printing roller according to claim 1, characterized in that: Both ends of the printing roller (1) are detachably fitted with outer sealing caps (7) by bolts, and the roller shaft (8) is fixedly installed at the center of the outer surface of the outer sealing cap (7).

6. A printing roller for a UV printing machine according to claim 5, characterized in that: A transmission gear (9) is fixedly sleeved on the outer wall of the roller shaft (8).

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