Roller heating structure of cold ironing compound machine

Abstract

The utility model relates to the field of cold wave compound equipment, in particular to a roller heating structure of a cold wave compound machine. According to the technical scheme, the roller heating structure of the cold ironing compound machine comprises a pressing roller and a heating device, the heating device is arranged on the lateral upper portion of the pressing roller, the pressing roller comprises a rotating roller body and a silica gel layer wrapped outside the rotating roller body, a plurality of radiation heating parts are arranged on the heating device, and the radiation heating parts are arranged on the pressing roller body. And the radiation heating part faces the silica gel layer of the pressing roller. The device has the beneficial effects that the radiation heating part is used for heating the outer surface of the pressing roller, and the whole silica gel layer of the pressing roller does not need to be heated from inside to outside, so that the preheating speed of the pressing roller can be greatly improved, the temperature of the outer surface of the pressing roller can be conveniently controlled, and the cold wave compounding quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of cold-ironing composite equipment, in particular to a roller heating structure of a cold-ironing composite machine. Background Art

[0002] The cold foil laminating machine is a device that uses a relatively low temperature to transfer the pattern on the transfer film to the substrate. It heats the pressing roller, heats the transfer film with the pressing roller, and presses the transfer film on the substrate, so that the pattern on the transfer film is transferred to the substrate. The heating of the pressing roller currently adopts the method of setting an electric heating device inside the pressing roller, and wrapping a silicone layer with a certain elasticity outside the electric heating device as the roller body, and using the electric heating device to heat the silicone layer to increase the surface temperature of the roller body for cold foil laminating; in order to achieve a good cold foil laminating effect, there is a certain requirement for the thickness of the silicone layer, which generally needs to reach several centimeters or even close to ten centimeters. The pressing roller with this structure requires a long preheating time so that the heat energy emitted by the electric heating device is transferred to the outer surface of the silicone layer, thereby affecting the processing efficiency. In addition, due to the slow heat conduction speed and large delay, it is also difficult to accurately control the surface temperature of the pressing roller, thereby affecting the effect of cold foil laminating. At the same time, since the electric heating device needs to be arranged in the silicone layer, when the electric heating device fails and needs to be repaired, the repair process is relatively complicated and tedious. Summary of the invention

[0003] The utility model aims to provide a roller heating structure for a cold foil laminating machine, and in particular to provide a roller heating structure for a cold foil laminating machine which is convenient for controlling the roller surface temperature and has high heating efficiency.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a roller heating structure of a cold stamping laminating machine, comprising a pressing roller and a heating device, wherein the heating device is arranged on the upper side of the pressing roller, the pressing roller comprises a rotating roller body and a silicone layer wrapped around the rotating roller body, and a plurality of radiation heating components are arranged on the heating device, and the radiation heating components face the silicone layer of the pressing roller.

[0005] Specifically, the pressing roller is driven and connected by a pressing drive mechanism and a rotating drive mechanism. The pressing roller is rotationally connected to a mounting seat. The rotating drive mechanism is disposed on the mounting seat and is drivingly connected to the pressing roller. The pressing drive mechanism is drivingly connected to the pressing roller via the mounting seat.

[0006] Specifically, the heating device is arranged above one side of the pressing roller, and a temperature sensor is arranged above the other side of the pressing roller.

[0007] Specifically, the radiation heating component is an electric heating plate.

[0008] Specifically, a pressure sensor is provided between the pressing drive mechanism and the mounting seat, and the pressure sensor is connected to a controller of the pressing drive mechanism.

[0009] The beneficial effect of the utility model is that the outer surface of the pressing roller is heated by using a radiation heating component. Since there is no need to heat the entire silicone layer of the pressing roller from the inside to the outside, the preheating speed of the pressing roller can be greatly improved. At the same time, it is convenient to control the temperature of the outer surface of the pressing roller and improve the quality of cold ironing. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attached Figure 1 Schematic diagram of the overall structure of the roller heating structure of the cold foil laminating machine in the embodiment. DETAILED DESCRIPTION

[0011] Example 1, reference Figure 1 A roller heating structure of a cold stamping laminating machine includes a pressing roller 1 and a heating device 2. The heating device 2 is arranged on the upper side of the pressing roller 1. The pressing roller 1 includes a rotating roller body 11 and a silicone layer 12 wrapped around the rotating roller body 11. The heating device 2 is provided with a plurality of radiation heating components 21. The radiation heating components 21 face the silicone layer 12 of the pressing roller 1.

[0012] In this embodiment, the cold foil laminating machine is provided with a pressure roller 3 below the pressing roller 1, between which the substrate and the transfer film can pass, and the pressing roller 1 can transfer the pattern on the transfer film to the substrate by applying pressure and heating the transfer film and the substrate, and a mounting frame is provided above the pressing roller 1 for mounting and connecting the pressing roller 1. Therefore, in order to heat the outer surface of the pressing roller 1, the heating device 2 is arranged on the upper side of the pressing roller 1, that is, the heating device 2 can be arranged on the upper left side or the upper right side of the pressing roller 1; before performing the cold foil laminating, it is necessary to start the heating device 2 first, and drive the pressing roller 1 to rotate so that the silicone layer 12 on the outer side of the pressing roller 1 is evenly heated, and after the heating reaches the temperature for the cold foil laminating, that is The substrate and the transfer film can be conveyed between the pressing roller 1 and the pressure roller 3 by the substrate conveying device and the transfer film unwinding device for cold stamping. The temperature of cold stamping is generally 80°C. Specifically, since the pressing roller 1 needs to keep rotating during the heating process, the heating device 2 needs to be separated from the pressing roller 1. In order to achieve the heating of the pressing roller 1, the heating device 2 is provided with a plurality of radiation heating components 21, which are arranged along the axis direction of the pressing roller. The pressing roller 1 is heated by the radiation heating components 21 emitting heat radiation. Specifically, the radiation heating components 21 can be an electric heating plate. Preferably, the electric heating plate can be a heating plate with a certain curvature, so as to further improve the heating efficiency of the curved surface of the pressing roller 1. In this embodiment, since the outer surface of the pressing roller 1 is directly heated without considering the internal temperature, not only the preheating time is short, but also the temperature of the surface of the pressing roller 1 is convenient to control, thereby improving the quality of cold stamping. In order to facilitate the control of the surface temperature of the pressing roller 1, the temperature of the surface of the pressing roller 1 can be measured by setting a temperature sensor 4, and the controller of the heating device 2 can adjust the heating power of the heating device 2 according to the surface temperature of the pressing roller 1 detected by the temperature sensor 4, so as to achieve accurate control of the surface temperature of the pressing roller 1. Specifically, the heating device 2 is arranged above one side of the pressing roller 1, and the temperature sensor 4 is arranged above the other side of the pressing roller 1. The temperature sensor 4 is preferably an infrared temperature measuring probe.

[0013] Specifically, in the present embodiment, since the pressing roller 1 needs to press and laminate the substrate and the transfer film, the pressing roller 1 not only needs to rotate but also needs to move up and down. Therefore, the pressing roller 1 is drive-connected by a pressing drive mechanism 51 and a rotating drive mechanism 52. The pressing roller 1 is rotationally connected to the mounting seat 53. The rotating drive mechanism 52 is disposed on the mounting seat 53 and is drive-connected to the pressing roller 1. The pressing drive mechanism 51 is drive-connected to the pressing roller 1 via the mounting seat 53. The pressing drive mechanism 51 drives the pressing roller 1 in the vertical direction through the mounting seat 53. When cold stamping and lamination are not required, the pressing drive mechanism 51 can drive the pressing roller 1 to move upward and can be preheated by the heating device 2. When the preheating temperature reaches the set value, the substrate and the transfer film are transported to the top of the pressure roller, and the pressing drive mechanism 51 drives the pressing roller 1 to move downward to press the transfer film and the substrate, and rotates as the transfer film and the substrate are transported forward. The rotation of the pressing roller 1 is driven by the rotation drive mechanism 52 set on the mounting seat, and the rotation drive mechanism 52 can use a servo motor connected to a reducer. Among them, the pressing drive mechanism 51 can preferably be driven by a driving cylinder, and the pressure applied by the pressing roller 1 on the transfer film and the substrate can be adjusted by adjusting the air supply pressure of the driving cylinder. In addition, a pressure sensor 54 can be provided between the pressing drive mechanism 51 and the mounting seat 53. The pressure sensor 54 is connected to the controller of the pressing drive mechanism 51. The pressure sensor 54 can be used to detect the pressure applied by the pressing roller 1 on the transfer film and the substrate, so that the controller of the pressing drive mechanism can adjust the pressure of the pressing roller 1 driven by the pressing drive mechanism 51.

[0014] Of course, the above are only preferred implementations of the present utility model, and are not intended to limit the scope of use of the present utility model. Therefore, any equivalent changes made to the principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A roller heating structure of a cold foil laminating machine, characterized in that: It includes a pressing roller and a heating device, wherein the heating device is arranged on the upper side of the pressing roller, the pressing roller includes a rotating roller body and a silicone layer wrapped outside the rotating roller body, and the heating device is provided with a plurality of radiation heating components, and the radiation heating components face the silicone layer of the pressing roller.

2. The roller heating structure of the cold foil laminating machine according to claim 1, characterized in that: The pressing roller is connected by a pressing drive mechanism and a rotating drive mechanism. The pressing roller is rotatably connected to a mounting seat. The rotating drive mechanism is disposed on the mounting seat and is connected to the pressing roller. The pressing drive mechanism is connected to the pressing roller via the mounting seat.

3. The roller heating structure of the cold foil laminating machine according to claim 1, characterized in that: The heating device is arranged above one side of the pressing roller, and a temperature sensor is arranged above the other side of the pressing roller.

4. The roller heating structure of a cold foil laminating machine according to claim 1, characterized in that: The radiation heating component adopts an electric heating plate.

5. The roller heating structure of the cold foil laminating machine according to claim 2, characterized in that: A pressure sensor is arranged between the pressing drive mechanism and the mounting seat, and the pressure sensor is connected to a controller of the pressing drive mechanism.

Images