A roller heating device for roller printing machine

Abstract

The utility model relates to the technical field of transfer machines, in particular to a roller heating device for a roller printing machine, comprising a heat-conducting roller and a supporting roller body rotatably connected to the heat-conducting roller, wherein the supporting roller body comprises a supporting roller located inside the heat-conducting roller, wherein a first fluid heat-conducting pipeline and a second fluid heat-conducting pipeline are wound around the supporting roller, wherein the first fluid heat-conducting pipeline and the second fluid heat-conducting pipeline can exchange heat, wherein the first fluid heat-conducting pipeline is connected to a cold fluid circulation component, and the second fluid heat-conducting pipeline is connected to a hot fluid circulation component. The device is provided with two fluid heat-conducting pipelines of different temperatures, which can actively and quickly cool down the temperature to avoid overheating of the machine.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer printing machines, in particular to a roller heating device for a roller printing machine. Background Art

[0002] Transfer printing is a new type of textile transfer printing method, which can realize transfer printing on natural fabrics. This type of printing equipment needs to use a heating roller to heat the pattern on one object and transfer it to another object. Please refer to the printing machine with oil heating roller disclosed in Publication (Announcement) No.: CN102431283A. The device heats the heating roller by spraying heating oil on the heating roller. The hot stamping machine oil-heated hot stamping roller disclosed in Related Technology Publication (Announcement) No.: CN203543331U and the heating roller for printing and packaging equipment disclosed in Publication (Announcement) No.: CN105882114A also disclose similar heating methods for heating rollers.

[0003] In the prior art, it is difficult to control the temperature of the heating roller. When the temperature is too high, the temperature can only be lowered by reducing the oil injection temperature or the oil injection amount, but the cooling effect is poor. Utility Model Content

[0004] The utility model aims to solve the problem that the temperature control of the heating roller in the prior art is difficult and when the temperature is too high, the temperature can only be reduced by reducing the oil injection temperature or the oil injection amount, but the cooling effect is poor. A roller heating device for a roller printing machine is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller heating device for a roller printing machine comprises a heat-conducting roller and a supporting roller body rotatably connected to the heat-conducting roller, wherein the supporting roller body comprises a supporting roller located inside the heat-conducting roller, a first fluid heat-conducting pipeline and a second fluid heat-conducting pipeline are wound around the supporting roller, the first fluid heat-conducting pipeline and the second fluid heat-conducting pipeline can exchange heat, the first fluid heat-conducting pipeline is connected to a cold fluid circulation component, and the second fluid heat-conducting pipeline is connected to a hot fluid circulation component.

[0007] The first fluid heat conduction pipeline has a second fluid inlet end at one end and a second fluid outlet end at the other end, the second fluid inlet end and the second fluid outlet end both pass through the heat conduction roller, and the second fluid inlet end and the second fluid outlet end are connected to a cold fluid circulation component;

[0008] And / or the second fluid heat conduction pipeline has a first fluid inlet end at one end and a first fluid outlet end at the other end, the first fluid inlet end and the first fluid outlet end both pass through the heat conduction roller, and the first fluid inlet end and the first fluid outlet end are connected to the heat fluid circulation component.

[0009] The first fluid heat conducting pipeline and the second fluid heat conducting pipeline are both spirally wound on the supporting roller.

[0010] The first fluid heat conduction pipeline and the second fluid heat conduction pipeline are staggeredly distributed along the axial direction of the support roller.

[0011] The cross-sections of the first fluid heat conduction pipeline and the second fluid heat conduction pipeline are both triangular, the tip of the first fluid heat conduction pipeline is close to the inner wall of the heat conduction roller, and the surface of the second fluid heat conduction pipeline is close to the inner wall of the heat conduction roller.

[0012] The cross-sections of the first fluid heat conduction pipeline and the second fluid heat conduction pipeline are both triangular, the surface of the first fluid heat conduction pipeline is close to the inner wall of the heat conduction roller, and the tip of the second fluid heat conduction pipeline is close to the inner wall of the heat conduction roller.

[0013] The cross-sections of the first fluid heat conducting pipeline and the second fluid heat conducting pipeline are both rectangular.

[0014] The cross-sections of the first fluid heat conduction pipeline and the second fluid heat conduction pipeline are both rectangular, and the first fluid heat conduction pipeline is located in the inner circle of the second fluid heat conduction pipeline; or the first fluid heat conduction pipeline is located in the outer circle of the second fluid heat conduction pipeline.

[0015] The heat-conducting roller includes a heat-conducting tube and end covers respectively located at both ends of the heat-conducting tube, the end covers are fixed to the heat-conducting tube by bolts, and the support roller body includes support shafts fixedly connected or integrally formed with both ends of the support roller, the two support shafts respectively pass through the two end covers, and bearings are installed between the support shafts and the end covers.

[0016] The support shaft is provided with slots for the first fluid inlet end, the second fluid outlet end, the first fluid outlet end, and the second fluid inlet end to pass through.

[0017] The utility model provides a roller heating device for a roller printing machine, which has the beneficial effect that: the device is provided with two fluid heat conduction pipelines with different temperatures, which can actively and quickly reduce the temperature and avoid the problem of overheating of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a second implementation mode of the fluid heat transfer pipeline of the utility model;

[0021] Figure 4 It is a schematic structural diagram of a third embodiment of the fluid heat conduction pipeline of the present utility model.

[0022] In the figure: first fluid inlet end 1, second fluid outlet end 2, support roller 3, heat-conducting tube 4, heat-conducting roller 5, first fluid heat-conducting pipeline 6, second fluid heat-conducting pipeline 7, end cover 8, bolt 9, bearing 10, second fluid inlet end 11, support shaft 12, first fluid outlet end 13, support roller body 14. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 A roller heating device for a roller printing machine includes a heat-conducting roller 5 and a supporting roller body 14 rotatably connected to the heat-conducting roller 5. The supporting roller body 14 includes a supporting roller 3 located inside the heat-conducting roller 5. A first fluid heat-conducting pipeline 6 and a second fluid heat-conducting pipeline 7 are wound around the supporting roller 3. The first fluid heat-conducting pipeline 6 and the second fluid heat-conducting pipeline 7 can exchange heat. The first fluid heat-conducting pipeline 6 is connected to a cold fluid circulation component, and the second fluid heat-conducting pipeline 7 is connected to a hot fluid circulation component.

[0025] When the device is working, the hot fluid is circulated in the second fluid heat transfer pipeline 7 through the hot fluid circulation component, and the heat is transferred to the heat transfer roller 5 through the circulating hot fluid. When the roller printing machine is working normally, the cold fluid circulation component does not work or moves at a low speed. If the heat transfer roller overheats or needs to be cooled, the cold fluid circulation component allows the cold fluid to flow rapidly in the first fluid heat transfer pipeline 6, and the heat inside the heat transfer roller 5 is quickly carried away by the flowing cold fluid, thereby achieving a rapid cooling effect. The device is provided with two fluid heat transfer pipelines with different temperatures, which can actively and quickly cool down the machine to avoid overheating.

[0026] The first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 of the device can be made of copper tubes or aluminum tubes. The hot fluid circulation component can adopt the following scheme, which is to set up an oil storage tank with heating function, and connect the second fluid heat conduction pipeline 7, the oil storage tank, and the first oil pump as a circulation pipeline through pipelines; the cold fluid circulation component can adopt the following scheme, which is to set up a second oil storage tank, which is a normal temperature oil storage tank or a box with refrigeration function, and connect the first fluid heat conduction pipeline 6, the oil storage tank, and the second oil pump as a circulation pipeline through pipelines. The above fluid circulation components are relatively common technologies in related technologies and will not be described in detail in this article. The fluid in this device can be thermal oil.

[0027] In order to facilitate the inflow and outflow of fluid, the first fluid heat conduction pipeline 6 has a second fluid inlet end 11 at one end and a second fluid outlet end 2 at the other end. The second fluid inlet end 11 and the second fluid outlet end 2 both penetrate the heat conduction roller 5, and the second fluid inlet end 11 and the second fluid outlet end 2 are connected to the cold fluid circulation component;

[0028] And / or the second fluid heat conduction pipeline 7 has a first fluid inlet end 1 at one end and a first fluid outlet end 13 at the other end, the first fluid inlet end 1 and the first fluid outlet end 13 both pass through the heat conduction roller 5, and the first fluid inlet end 1 and the first fluid outlet end 13 are connected to the heat fluid circulation component.

[0029] Hot fluid enters through the first fluid inlet port 1 and is discharged through the first fluid outlet port 13 , and cold fluid enters through the second fluid inlet port 11 and is discharged through the second fluid outlet port 2 .

[0030] As an implementation method of the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7, refer to Figure 1-Figure 3 The first fluid heat conducting pipeline 6 and the second fluid heat conducting pipeline 7 are both spirally wound on the supporting roller 3 .

[0031] Specifically, the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 are staggeredly distributed along the axial direction of the support roller 3. The staggered distribution can achieve a faster heat exchange effect between the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7.

[0032] As an implementation method of staggered distribution, refer to Figure 1 , Figure 2 The cross-sections of the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 are both triangular. The tip of the first fluid heat conduction pipeline 6 is close to the inner wall of the heat conduction roller 5, and the surface of the second fluid heat conduction pipeline 7 is close to the inner wall of the heat conduction roller 5. In this way, the heat of the second fluid heat conduction pipeline 7 can be better radiated to the heat conduction roller 5. When cooling, the first fluid heat conduction pipeline 6 quickly absorbs the heat of the second fluid heat conduction pipeline 7 to achieve cooling.

[0033] As an implementation method of staggered distribution, not shown in the figure, the cross-sections of the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 are both triangular, the surface of the first fluid heat conduction pipeline 6 is close to the inner wall of the heat conduction roller 5, and the tip of the second fluid heat conduction pipeline 7 is close to the inner wall of the heat conduction roller 5. In this way, the second fluid heat conduction pipeline 7 transfers heat to the first fluid heat conduction pipeline 6 through heat conduction, and the first fluid heat conduction pipeline 6 realizes the heating effect on the heat conduction roller 5. Since the first fluid heat conduction pipeline 6 is used as an intermediate component for heating conduction, when this method is used, when cooling is not required, the fluid in the first fluid heat conduction pipeline 6 is generally in a static state. When cooling is required, the fluid in the first fluid heat conduction pipeline 6 flows, and the cooling effect can be quickly achieved.

[0034] refer to Figure 3 As an implementation method of staggered distribution, the cross-sections of the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 are both rectangular.

[0035] refer to Figure 4 As an implementation method of staggered distribution, the cross-sections of the first fluid heat conduction pipeline 6 and the second fluid heat conduction pipeline 7 are both rectangular, and the first fluid heat conduction pipeline 6 is located in the inner circle of the second fluid heat conduction pipeline 7; or the first fluid heat conduction pipeline 6 is located in the outer circle of the second fluid heat conduction pipeline 7. The second fluid heat conduction pipeline 7 is distributed in the outer circle, and the heating effect is obvious. The second fluid heat conduction pipeline 7 is distributed in the inner circle, and the cooling effect is obvious. The specific setting method is distributed according to actual needs.

[0036] In order to facilitate the molding and assembly of this device, refer to Figure 1 The heat-conducting roller 5 includes a heat-conducting tube 4 and end covers 8 respectively located at both ends of the heat-conducting tube 4. The end covers 8 are fixed to the heat-conducting tube 4 by bolts 9. The support roller body 14 includes support shafts 12 fixedly connected or integrally formed with the two ends of the support roller 3. The two support shafts 12 respectively pass through the two end covers 8. A bearing 10 is installed between the support shaft 12 and the end covers 8 to facilitate the assembly of the support roller body 14 into the interior of the heat-conducting roller 5.

[0037] The support shaft 12 is provided with slots for the first fluid inlet end 1, the second fluid outlet end 2, the first fluid outlet end 13, and the second fluid inlet end 11 to pass through, so as to facilitate the first fluid inlet end 1, the second fluid outlet end 2, the first fluid outlet end 13, and the second fluid inlet end 11 to be led out from the inside of the heat-conducting roller 5.

[0038] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technical solution, concept, and design obtained by equivalent replacement or change based on the technical solution and utility model concept of the utility model by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model.

Claims

1. A roller heating device for a roller printing machine, characterized in that: The invention comprises a heat-conducting roller (5) and a supporting roller body (14) rotatably connected to the heat-conducting roller (5); the supporting roller body (14) comprises a supporting roller (3) located inside the heat-conducting roller (5); a first fluid heat-conducting pipeline (6) and a second fluid heat-conducting pipeline (7) are wound around the supporting roller (3); the first fluid heat-conducting pipeline (6) and the second fluid heat-conducting pipeline (7) are capable of exchanging heat; the first fluid heat-conducting pipeline (6) is connected to a cold fluid circulation component, and the second fluid heat-conducting pipeline (7) is connected to a hot fluid circulation component.

2. A roller heating device for a roller printing machine according to claim 1, characterized in that: The first fluid heat conduction pipeline (6) has a second fluid inlet end (11) at one end and a second fluid outlet end (2) at the other end, the second fluid inlet end (11) and the second fluid outlet end (2) both pass through the heat conduction roller (5), and a cold fluid circulation component is connected between the second fluid inlet end (11) and the second fluid outlet end (2); And / or the second fluid heat transfer pipeline (7) has a first fluid inlet end (1) at one end and a first fluid outlet end (13) at the other end, the first fluid inlet end (1) and the first fluid outlet end (13) both pass through the heat transfer roller (5), and the first fluid inlet end (1) and the first fluid outlet end (13) are connected to a thermal fluid circulation component.

3. A roller heating device for a roller printing machine according to claim 2, characterized in that: The first fluid heat conduction pipeline (6) and the second fluid heat conduction pipeline (7) are both spirally wound on the support roller (3).

4. A roller heating device for a roller printing machine according to claim 3, characterized in that: The first fluid heat conduction pipeline (6) and the second fluid heat conduction pipeline (7) are staggeredly distributed along the axial direction of the support roller (3).

5. A roller heating device for a roller printing machine according to claim 4, characterized in that: The cross-sections of the first fluid heat-conducting pipeline (6) and the second fluid heat-conducting pipeline (7) are both triangular; the tip of the first fluid heat-conducting pipeline (6) is close to the inner wall of the heat-conducting roller (5), and the surface of the second fluid heat-conducting pipeline (7) is close to the inner wall of the heat-conducting roller (5).

6. A roller heating device for a roller printing machine according to claim 4, characterized in that: The cross-sections of the first fluid heat-conducting pipeline (6) and the second fluid heat-conducting pipeline (7) are both triangular; the surface of the first fluid heat-conducting pipeline (6) is close to the inner wall of the heat-conducting roller (5), and the tip of the second fluid heat-conducting pipeline (7) is close to the inner wall of the heat-conducting roller (5).

7. The roller heating device of a roller printing machine according to claim 4, characterized in that: The first fluid heat conducting pipeline (6) and the second fluid heat conducting pipeline (7) both have rectangular cross-sections.

8. The roller heating device of a roller printing machine according to claim 3, characterized in that: The cross-sections of the first fluid heat conducting pipeline (6) and the second fluid heat conducting pipeline (7) are both rectangular, and the first fluid heat conducting pipeline (6) is located in the inner circle of the second fluid heat conducting pipeline (7); or the first fluid heat conducting pipeline (6) is located in the outer circle of the second fluid heat conducting pipeline (7).

9. A roller heating device for a roller printing machine according to any one of claims 2 to 8, characterized in that: The heat-conducting roller (5) comprises a heat-conducting tube (4) and end covers (8) respectively located at both ends of the heat-conducting tube (4); the end covers (8) are fixed to the heat-conducting tube (4) by bolts (9); the support roller body (14) comprises support shafts (12) fixedly connected or integrally formed with the two ends of the support roller (3); the two support shafts (12) respectively pass through the two end covers (8); and bearings (10) are installed between the support shafts (12) and the end covers (8).

10. A roller heating device for a roller printing machine according to claim 9, characterized in that: The support shaft (12) is provided with slots for the first fluid inlet end (1), the second fluid outlet end (2), the first fluid outlet end (13), and the second fluid inlet end (11) to pass through.

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