JPS59185653A - Method for driving transfer roller - Google Patents

Abstract

PURPOSE:To reduce temp. irregularity in the longitudinal direction of a roller, by a method wherein a transfer roller is formed of a heating medium sealing type electric heating roller/and rotated by the belt of a nip mechanism when subjected to transfer operation while only the transfer roller is rotated by a drive apparatus when said roller is heated without performing transfer operation. CONSTITUTION:When feed rollers 7-12 and a heating medium sealing type heating roller 2 are rotated to send guide cloth and a fabric article B connected to said cloth is withdrawn from a supply part to be sent to a predetermined position, transfer paper A is withdrawn from a supply part 34 and passed between the guide cloth and the heating medium sealing type heating roller 2 to be wound around a wind-up part 35 while the fabric article B and the transfer paper A are continuously sent between the heating medium sealing type heating roller 2 and a belt 33 to perform transfer. The transferred fabric article B' is wound up by the wind-up part while the transfer paper A' losing a picture pattern is wound up by a wind-up part 35. When a separate picture pattern is succeedingly transferred, the transfer paper A and the fabric article B are respectively exchanged with new ones in such a state that only the heating medium sealing type heating roller 2 is rotated and a new fabric article is connected to the guide cloth and transfer operation is repeated to perform the transfer of a picture pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for driving a transfer roller in a transfer device.

Generally, when transferring a design onto a wide or wafer-width fabric object, the transfer paper and the fabric object are sent by rollers, etc., and then they are overlaid and fed to a heated transfer roller, which is then pressed by a nip mechanism and transferred. A device is used to transfer paper designs onto fabric objects.

However, the transfer roller is provided with a jacket for circulating a heat medium, and a circulating heating method is adopted in which a heat medium heated by a heat medium heating device provided separately from the roller is supplied to the jacket. For this reason, the temperature of the heating medium decreases while it moves within the jacket, causing temperature variations in the longitudinal direction of the roller, resulting in a disadvantage that the pattern cannot be transferred uniformly.

The present invention was obtained as a result of studies aimed at reducing the temperature variation of the transfer roller, which is the drawback described above.

That is, the present invention is a device that is composed of a transfer paper supply winding section, a fabric material feed roller, a transfer roller, and a nip mechanism that presses the transfer paper and the fabric material against the transfer roller using a belt. When carrying out this process, the transfer roller is entirely formed by an electrically heated roller filled with a heat medium, and when the transfer operation is performed, the transfer roller is rotated by the belt of the nip mechanism, and the transfer roller is completely heated without performing the transfer operation. The present invention provides a method for driving a transfer roller in which the transfer roller is rotated by a drive device when the transfer roller is kept in the state.

An outline of one embodiment of the transfer device used in the present invention is shown in the drawings, and its configuration will be explained.

A heating medium-filled induction heating roller 2 for transfer is rotatably attached to the machine frame 1. A sprocket 5 with a one-way operating latch is attached to one end of this roller. A sprocket 4 is attached to the protruding shaft of the first drive device 3, and a chino 6 is stretched between the sprocket 4 and the sprocket 5. The fabric feed roller 7 is rotatably attached to the machine frame 1, and a two-line drive sprocket l-'15 is attached to one end of the roller.
is installed. The fabric feed rollers 8 to 12 are in the machine frame 1.
The sprockets 16 to 2o are attached to one end of the sprockets so as to be rotatable, respectively. A two-row drive sprocket 14 is mounted on the output shaft of the second drive device 13.

Cheno 23 has sprocket 14 and sprocket 15,
The Cheno 26 has a sprocket 14 and a sprocket holder, respectively. Cheno 24 is stretched over sprockets 15-20 and sprockets 21 and 22. The belt driving roller 27 is rotatably attached to the machine frame 1, and a sprocket 25 is mounted on one end of the belt driving roller 27. The belt guide rollers 28 to 31 are rotatably attached to the machine frame 1. The belt tensioning roller 32 is attached to the machine frame 1 via a movable bracket (not shown), and is moved together with the movable bracket (not shown) by a cylinder (not shown) to transfer the belt 33 to a heat medium-filled guide roller. 2 with a predetermined pressing force and then released. A feeder 34 and a winder 35 for the transfer paper A are provided above the heating medium-filled induction heating roller 2.

The transfer operation performed by the transfer device having the above configuration will now be described.

First, move the belt tensioning roller 32 in the retracting direction! l! I
] Then, loosen the belt 33 and separate it from the heating medium-filled induction heating roller 2, and send the guiding cloth connected to the fabric B to the rollers 7 to 12, the heating medium-filled induction heating roller 2, and the belt 33.
while rotating the predetermined -ra 2,
Electric power is supplied to the induction heating section of the roller to heat the heating medium sealed in the roller via the jacket to raise the temperature of the roller surface to a predetermined temperature. When the temperature reaches a predetermined temperature, the second drive device 13
The feed rollers 7 to 12 and the belt drive roller 2 are activated.
At the same time, the belts 33 are rotated through the rollers 7, and the belt tensioning rollers 32 are moved in the n direction so that the belts 33 are brought into contact with the heating medium-filled induction heating rollers 2. At this time, the heating medium-filled induction heating roller 2 is being rotated by the first drive device 3, but the speed is slower than the speed of the belt 33, so the heating medium-filled induction heating roller 2 is rotated by the belt 33. A one-way operating clutch operates between the first drive device 3 and the first drive device 3, and the engagement is in a round-rotation state. When the heating medium-filled induction heating roller is rotated by the belt 33, the first drive device 3 is stopped.

The feeding rollers 7 to 12 and the heat medium-filled heating roller 2 rotate to feed the guiding cloth, and when the connected cloth 4H material B is pulled out from a supply center (not shown) and sent to a predetermined position, transfer is performed. The paper Ai is pulled out from the supply 34 and passed between the guide cloth and the heating medium-filled induction heating roller 2 and wound around the winding capital 35, and the fabric B and the transfer paper A are continuously passed between the heating medium-filled induction heating roller 2 and the fabric B and the transfer paper A. The image is transferred between the belts 33 and transferred. The transferred fabric B' is wound up on a winding capital (not shown), and the transfer paper A', which has no pattern, is wound on a winding capital 35, respectively.

A guiding cloth is connected to the end of the cloth #lJ4 object B, and when the transfer of the design to the cloth object B is completed, the guiding cloth is sent to the rollers 7 to 12.
It is passed between the heating medium-filled induction heating roller 2 and the belt 33. Next, the first drive device FIF 32 is activated, the belt tensioning roller 32 is moved in the "A" direction, the belt 33 is loosened and separated from the heating medium-filled induction heating roller 2, and the second drive device 13 is stopped.

When subsequently transferring another design, replace the transfer paper A and the fabric B' (r) with new ones, with only the heating medium-filled induction heating roller 2 rotated, and place the new fabric on the guide cloth. Connect the ends and repeat the above transfer process to transfer the pattern.When finishing the transfer process, all power supply to the induction heating roller is stopped and cooled while the heating medium-filled induction heating roller 2 is still rotating. When the temperature reaches a predetermined temperature, the first drive device 3 is stopped and the heating medium-filled induction heating roller 2 is stopped.

Although the present invention can be practiced as described above, it is not limited to the examples.

Although the two fabric supply and winding units may be installed at separate positions from the machine frame 1, it is also possible to provide the fabric supply and seven winding units in the machine frame 1.

0 If a tension applying device (such as a three-point nip roller) is installed between the fabric supply section and the transfer roller and between the transfer roller and the take-up section, the pressure applied to the transfer roller by the nip mechanism and the It is possible to obtain a complete transfer with no pattern deviation. When the tension applying device is provided, the roller for feeding the fabric is preferably driven by a sprocket with a slip clutch interposed therebetween.

When a fabric material and a transfer paper are supplied to the transfer roller, if a craft paper or the like is interposed between the fabric material and the belt of the nip mechanism, staining of the belt due to the transfer dye can be prevented.

○Although a sprocket with a one-way operating clutch is attached to the transfer roller, a one-way sprocket with a J clutch may be attached to the drive unit.

0 heating medium-filled electric heating roller has an induction coil consisting of a coil and a core provided inside the roller, and a jacket of the roller located concentrically with the coil as a single turn of electromagnetic induction wire, -1: Based on the principle of low-frequency induction heating, the jacket part itself generates Zeal heat, and the roller surface is heated to a predetermined temperature via a heating medium. A heating medium-filled induction heating roller that generates heat due to heat loss, hysteresis loss, etc., and heats the roller surface to a predetermined temperature by fully shutting off the heat medium, or a resistance heating element is installed inside the roller to heat the heat medium and the heat medium. It is also possible to use a resistance heating roller filled with a heating medium, which heats the roller surface to a predetermined temperature through the heating medium.

In the present invention, as described above, the transfer roller is formed entirely of a heating medium-filled electrically heated roller, and when performing a transfer operation, the transfer roller is rotated by a belt of a nip mechanism, and the roller is heated without performing a transfer operation. By rotating only the transfer roller with the drive device when the transfer roller is kept in the same position, the following effects can be achieved.

b) Since the transfer roller uses an electrically heated roller filled with a heating medium, the temperature variation in the longitudinal direction of the roller is extremely small, and a uniform pattern can be transferred.

Since the transfer roller is always fully rotated in the heated state, there is no local heating caused by the heating medium and the roller does not become deformed.

C) The transfer roller is rotated by the nip mechanism during the transfer operation, and independently rotated by the drive device when the transfer operation is silent and heated, so the drive device can be made smaller and power consumption can be reduced. I can do it.

[Brief explanation of the drawing]

The drawings are schematic diagrams showing one embodiment of the transfer device of the present invention. 1: Machine frame, 2: Heat medium-filled induction heating roller, 3° first drive device, 4.16 to 22.25: Sprocket.

Claims (1)

[Claims] 1) Transfer paper supply 2 winding unit, fabric material feed roller,
When performing the transfer using a device consisting of a transfer roller, a transfer paper, and a nip mechanism that presses the fabric material against the transfer roller with a belt, the transfer roller is formed of an electric heating roller filled with a heat medium, and When performing a transfer operation, the transfer roller is rotated by the belt of the nip mechanism, and when the roller is kept in a heated state without performing a transfer operation, it is rotated by a drive device'f! : Drive method of the transfer roller as a percentage.