Roller heating device of roller printing machine

Abstract

The utility model relates to the technical field of printing machines, in particular to a roller heating device of a roller printing machine, which comprises a first heating unit, a second heating unit, a third heating unit and a fourth heating unit, and the third heating unit and the fourth heating unit are positioned between the first heating unit and the second heating unit. The first heating unit, the second heating unit and the supporting barrel shaft are fixedly assembled, the third heating unit and the fourth heating unit are connected with the supporting barrel shaft in a sliding mode, and a power mechanism capable of driving the third heating unit and the fourth heating unit to move in the axial direction of the supporting barrel shaft is arranged on the supporting barrel shaft. According to the device, the third heating unit and the fourth heating unit which can move are arranged between the first heating unit and the second heating unit, and the positions of the third heating unit and the fourth heating unit are moved through the power mechanism, so that the temperature adjusting effect on the temperature gathering position in the middle of the heat conduction cylinder is achieved, and improvement of the temperature consistency of the heat conduction cylinder is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of 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 requires the use of 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 onto 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 the heating roller.

[0003] When the heating roller is working, the two ends of the heating roller are closer to the outside world and the heat will diffuse to the surroundings. The heat dissipation rate in the middle of the heating roller is slower. Therefore, in actual work, the heat in the middle of the heating roller is often greater than the heat at the two ends, resulting in poor heating consistency. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of poor temperature consistency of the heating roller pointed out in the background technology, and to propose a roller heating device for a roller printing machine.

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

[0006] A roller heating device for a roller printing machine includes a supporting cylinder shaft fixed to a frame, a heat-conducting cylinder rotatably connected to the supporting cylinder shaft, a first heating unit, a second heating unit, a third heating unit, and a fourth heating unit on the part of the supporting cylinder shaft located inside the heat-conducting cylinder, the third heating unit and the fourth heating unit are located between the first heating unit and the second heating unit, the first heating unit and the second heating unit are fixedly assembled to the supporting cylinder shaft, the third heating unit and the fourth heating unit are slidably connected to the supporting cylinder shaft, and the supporting cylinder shaft is provided with a power mechanism that can drive the third heating unit and the fourth heating unit to move axially along the supporting cylinder shaft.

[0007] The power mechanism includes a forward and reverse motor fixed to the frame, a rotating shaft coaxially arranged and rotatably connected to the supporting cylinder shaft, the rotating shaft having a first threaded portion and a second threaded portion with opposite thread directions, the first threaded portion being threadedly connected to a first nut, the first nut being connected to the third heating unit, the second threaded portion being threadedly connected to a second nut, the second nut being connected to the fourth heating unit.

[0008] The support cylinder shaft is provided with a guide through hole, the first nut is fixedly connected to a first connecting piece, the first connecting piece passes through the guide through hole and the two are slidably connected, the first connecting piece is fixed to the third heating unit, the second nut is fixedly connected to a second connecting piece, the second connecting piece passes through the guide through hole and the two are slidably connected, and the second connecting piece is fixed to the fourth heating unit.

[0009] The first heating unit includes a first shell, the second heating unit includes a second shell, the third heating unit includes a third shell, and the fourth heating unit includes a fourth shell. The first shell is connected to the oil outlet of the heat transfer oil circulation and transportation device through a first pipeline, the first shell is connected to the third shell through a second pipeline, the third shell is connected to the fourth shell through a third pipeline, the fourth shell is connected to the second shell through a fourth pipeline, and the second shell is connected to the oil inlet of the heat transfer oil circulation and transportation device through a fifth pipeline.

[0010] The first heating unit includes a first shell, the second heating unit includes a second shell, the third heating unit includes a third shell, and the fourth heating unit includes a fourth shell. The first shell is filled with heat-conducting oil and a first electric heating rod is installed therein. The second shell is filled with heat-conducting oil and a second electric heating rod is installed therein. The third shell is filled with heat-conducting oil and a third electric heating rod is installed therein. The fourth shell is filled with heat-conducting oil and a fourth electric heating rod is installed therein. The wires of the first, second, third and fourth electric heating rods are all led out from the inside of the support cylinder shaft.

[0011] Taking the middle radial section of the heat-conducting tube as the symmetry plane, the first heating unit and the second heating unit are symmetrically arranged, and the third heating unit and the fourth heating unit are symmetrically arranged.

[0012] The utility model proposes a roller heating device for a roller printing machine, which has the beneficial effect that: the device is provided with a fixed first heating unit and a second heating unit at both ends of the inside of the heat-conducting tube, and a movable third heating unit and a fourth heating unit are provided between the first heating unit and the second heating unit. The positions of the third heating unit and the fourth heating unit are moved by a power mechanism, thereby achieving a temperature regulation effect on the temperature concentration position in the middle of the heat-conducting tube, which is beneficial to improving the temperature consistency of the heat-conducting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model.

[0014] In the figure: supporting cylinder shaft 1, heat-conducting cylinder 2, first heating unit 3, second heating unit 4, third heating unit 5, fourth heating unit 6, first nut 7, first connecting piece 8, second nut 9, second connecting piece 10, guide through hole 11, forward and reverse motor 12, rotating shaft 13, first threaded portion 14, second threaded portion 15, first pipeline 16, second pipeline 17, third pipeline 18, fourth pipeline 19, fifth pipeline 20, and temperature measuring element 21. DETAILED DESCRIPTION

[0015] 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 the embodiments.

[0016] Reference Figure 1 A roller heating device for a roller printing machine includes a supporting cylinder shaft 1 fixed to a frame, a heat-conducting cylinder 2 is rotatably connected to the supporting cylinder shaft 1, a first heating unit 3, a second heating unit 4, a third heating unit 5, and a fourth heating unit 6 are provided on the part of the supporting cylinder shaft 1 located inside the heat-conducting cylinder 2, the third heating unit 5 and the fourth heating unit 6 are located between the first heating unit 3 and the second heating unit 4, the first heating unit 3 and the second heating unit 4 are fixedly assembled with the supporting cylinder shaft 1, the third heating unit 5 and the fourth heating unit 6 are slidably connected with the supporting cylinder shaft 1, and a power mechanism is provided on the supporting cylinder shaft 1 that can drive the third heating unit 5 and the fourth heating unit 6 to move axially along the supporting cylinder shaft 1.

[0017] The device is provided with a fixed first heating unit 3 and a second heating unit 4 at both ends of the heat-conducting tube 2, and a movable third heating unit 5 and a fourth heating unit 6 are provided between the first heating unit 3 and the second heating unit 4. The positions of the third heating unit 5 and the fourth heating unit 6 are moved by a power mechanism, thereby achieving a temperature regulation effect on the temperature concentration position in the middle of the heat-conducting tube 2, which is beneficial to improving the temperature consistency of the heat-conducting tube.

[0018] As an embodiment, the power mechanism includes a forward and reverse motor 12 fixed to the frame, a rotating shaft 13 coaxially arranged and rotatably connected to the supporting cylinder shaft 1, the rotating shaft 13 having a first threaded portion 14 and a second threaded portion 15 with opposite thread directions, the first threaded portion 14 is threadedly connected to the first nut 7, the first nut 7 is connected to the third heating unit 5, the second threaded portion 15 is threadedly connected to the second nut 9, and the second nut 9 is connected to the fourth heating unit 6.

[0019] refer to Figure 1When the third heating unit 5 and the fourth heating unit 6 need to be adjusted, the forward and reverse motor 12 drives the rotating shaft 13 to rotate. When the rotating shaft 13 rotates, under the action of the first threaded portion 14 and the second threaded portion 15, the first nut 7 and the second nut 9 are moved closer to or away from each other, so that the third heating unit 5 and the fourth heating unit 6 move to the middle position of the heat conducting tube 2 or to the two ends of the heat conducting tube 2, thereby adjusting the temperature of the heat conducting tube 2 and improving the temperature consistency of the heat conducting tube 2.

[0020] Furthermore, the supporting cylinder shaft 1 is provided with a guide through hole 11, the first nut 7 is fixedly connected to the first connecting member 8, the first connecting member 8 passes through the guide through hole 11 and the two are slidably connected, the first connecting member 8 is fixed to the third heating unit 5, the second nut 9 is fixedly connected to the second connecting member 10, the second connecting member 10 passes through the guide through hole 11 and the two are slidably connected, the second connecting member 10 is fixed to the fourth heating unit 6, and the movement of the first connecting member 8 and the second connecting member 10 is guided by the guide through hole 11, so that the movement of the third heating unit 5 and the fourth heating unit 6 is smoother.

[0021] As an embodiment of the heating unit, the first heating unit 3 includes a first shell, the second heating unit 4 includes a second shell, the third heating unit 5 includes a third shell, and the fourth heating unit 6 includes a fourth shell. The first shell is connected to the oil outlet of the heat transfer oil circulation and conveying device through the first pipeline 16, the first shell is connected to the third shell through the second pipeline 17, the third shell is connected to the fourth shell through the third pipeline 18, the fourth shell is connected to the second shell through the fourth pipeline 19, and the second shell is connected to the oil inlet of the heat transfer oil circulation and conveying device through the fifth pipeline 20.

[0022] The heated thermal oil is sequentially transported to the first shell, the second shell, the third shell, and the fourth shell through the thermal oil circulation and transportation device, and finally flows back into the thermal oil circulation and transportation device through the fifth pipeline 20. As an embodiment of the thermal oil circulation and transportation device, the thermal oil circulation and transportation device includes a thermal oil container and a circulation pump. The thermal oil container is filled with thermal oil and an electric heating rod. The liquid inlet of the circulation pump is connected to the thermal oil container, the liquid outlet of the circulation pump is connected to the first pipeline 16, and the fifth pipeline 20 is connected to the thermal oil container. The thermal oil inside the thermal oil container is heated by the electric heating rod, and the thermal oil is circulated between the thermal oil container and the multiple shells through the circulation pump.

[0023] As another embodiment of the heating unit, the first heating unit 3 includes a first shell, the second heating unit 4 includes a second shell, the third heating unit 5 includes a third shell, and the fourth heating unit 6 includes a fourth shell. The first shell is filled with heat-conducting oil and a first electric heating rod is installed therein. The second shell is filled with heat-conducting oil and a second electric heating rod is installed therein. The third shell is filled with heat-conducting oil and a third electric heating rod is installed therein. The fourth shell is filled with heat-conducting oil and a fourth electric heating rod is installed therein. The wires of the first, second, third, and fourth electric heating rods are all led out from the inside of the support cylinder shaft 1. The heat-conducting oil in each shell is directly heated by the electric heating rod.

[0024] As an embodiment, the middle radial section of the heat-conducting tube 2 is a symmetrical plane, the first heating unit 3 and the second heating unit 4 are symmetrically arranged, and the third heating unit 5 and the fourth heating unit 6 are symmetrically arranged. The heating units are symmetrically arranged so that the temperatures at both ends of the heat-conducting tube 2 are symmetrically distributed, which helps to reduce the difficulty of temperature regulation.

[0025] During actual operation, multiple temperature measuring elements 21 can be set inside the heat-conducting tube 2 as needed, and the temperature measuring elements 21 and the forward and reverse motors 12 can be connected to the control processor. For example, when the temperature in the middle of the heat-conducting tube 2 is higher, the forward and reverse motors 12 are controlled to rotate forward, so that the third heating unit 5 and the fourth heating unit 6 move toward the two ends. When the temperatures at both ends are higher, the forward and reverse motors 12 are controlled to reverse, and the third heating unit 5 and the fourth heating unit 6 move toward the middle. The above control logic can select different existing measurement and control technologies according to specific working conditions, so as to achieve temperature measurement and adjustment of the movement state of the forward and reverse motors 12.

[0026] The above is only a preferred specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any technical solution, conception, and design obtained by equivalent replacement or modification of the technical solution and utility model concept of the present invention by any technical personnel familiar with the technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A roller heating device for a roller printing machine, comprising a support shaft (1) fixed to a frame, a heat-conducting cylinder (2) being rotatably connected to the support shaft (1), characterized in that: The portion of the support cylinder shaft (1) located inside the heat-conducting cylinder (2) is provided with a first heating unit (3), a second heating unit (4), a third heating unit (5), and a fourth heating unit (6); the third heating unit (5) and the fourth heating unit (6) are located between the first heating unit (3) and the second heating unit (4); the first heating unit (3) and the second heating unit (4) are fixedly assembled with the support cylinder shaft (1); the third heating unit (5) and the fourth heating unit (6) are slidably connected with the support cylinder shaft (1); and the support cylinder shaft (1) is provided with a power mechanism capable of driving the third heating unit (5) and the fourth heating unit (6) to move axially along the support cylinder shaft (1).

2. The roller heating device of a roller printing machine according to claim 1, characterized in that: The power mechanism comprises a forward and reverse motor (12) fixed to the frame, a rotating shaft (13) coaxially arranged with the supporting cylinder shaft (1) and rotatably connected, the rotating shaft (13) having a first threaded portion (14) and a second threaded portion (15) with opposite thread directions, the first threaded portion (14) being threadedly connected to a first nut (7), the first nut (7) being connected to the third heating unit (5), the second threaded portion (15) being threadedly connected to a second nut (9), the second nut (9) being connected to the fourth heating unit (6).

3. The roller heating device of a roller printing machine according to claim 2, characterized in that: The support shaft (1) is provided with a guide through hole (11), the first nut (7) is fixedly connected to a first connecting member (8), the first connecting member (8) passes through the guide through hole (11) and the two are slidably connected, the first connecting member (8) is fixed to the third heating unit (5), the second nut (9) is fixedly connected to a second connecting member (10), the second connecting member (10) passes through the guide through hole (11) and the two are slidably connected, and the second connecting member (10) is fixed to the fourth heating unit (6).

4. A roller heating device for a roller printing machine according to any one of claims 1 to 3, characterized in that: The first heating unit (3) includes a first shell, the second heating unit (4) includes a second shell, the third heating unit (5) includes a third shell, and the fourth heating unit (6) includes a fourth shell. The first shell is connected to the oil outlet of the heat transfer oil circulation and delivery device through a first pipeline (16), the first shell is connected to the third shell through a second pipeline (17), the third shell is connected to the fourth shell through a third pipeline (18), the fourth shell is connected to the second shell through a fourth pipeline (19), and the second shell is connected to the oil inlet of the heat transfer oil circulation and delivery device through a fifth pipeline (20).

5. A roller heating device for a roller printing machine according to any one of claims 1 to 3, characterized in that: The first heating unit (3) includes a first shell, the second heating unit (4) includes a second shell, the third heating unit (5) includes a third shell, and the fourth heating unit (6) includes a fourth shell. The first shell is filled with heat-conducting oil and a first electric heating rod is installed therein. The second shell is filled with heat-conducting oil and a second electric heating rod is installed therein. The third shell is filled with heat-conducting oil and a third electric heating rod is installed therein. The fourth shell is filled with heat-conducting oil and a fourth electric heating rod is installed therein. The wires of the first electric heating rod, the second electric heating rod, the third electric heating rod and the fourth electric heating rod are all led out from the inside of the support cylinder shaft (1).

6. A roller heating device for a roller printing machine according to any one of claims 1 to 3, characterized in that: Taking the middle radial cross section of the heat-conducting tube (2) as a symmetry plane, the first heating unit (3) and the second heating unit (4) are symmetrically arranged, and the third heating unit (5) and the fourth heating unit (6) are symmetrically arranged.

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