JPH0220235Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a cloth threading device for a calender machine that passes a cloth between a pair of pressure rolls and applies processes such as polishing and strain relief to the cloth.

[Conventional technology]

When starting a calender machine, it is necessary to perform a threading process in which the starting end of the processing fabric is sandwiched between a pair of pressure rollers. I was doing this threading work.

[Problem that the invention attempts to solve]

When the pressure roller is a heating roller, the temperature is raised while rotating until the predetermined processing temperature is reached in order to equalize the temperature, so there is a problem that threading cannot be performed until the temperature has been raised. .

Further, since the cloth is threaded while rotating the rollers after the temperature has been raised, there is a problem that there is a risk of hands being caught between the pair of pressure rollers.

[Means for solving problems]

In order to solve the above problems, the present invention has the following configuration.

That is, the cloth threading device for a calender machine according to the present invention is a cloth threading device for passing a starting end of a fabric for processing through a space between a pair of pressure rollers of a calender machine, and the threading device is a cloth threading device for passing a starting end of a fabric for processing through a space between a pair of pressure rollers of a calender machine. A pair of left and right cloth threading members are provided that protrude from the lower side to the upper side through spaces formed at both left and right ends, hold both ends in the width direction of the starting end of the fabric, and retreat to the lower side again. It is characterized by

[Effect]

A cloth threading member protrudes from the lower side of the fabric path to the upper side through a cavity formed at both ends of the pair of pressure rollers. The cloth threading is completed by holding both ends of the cloth in the width direction by the holding means provided at the tip of the cloth threading member, and retracting the cloth threading member to the lower side.

〔Example〕

The embodiments shown in the drawings will be described below.

This calender machine 1 includes a steel roll 3 and a cotton roll 4, which are pressure rollers, supported vertically in parallel with each other on left and right support stands 2, 2. In front of the pressure rollers 3, 4 are struts 6, 6 and a strut 7,
7 are erected, and guide rolls 8, . . . and guide bars 9,
...is supported. Further, a guide roll 8 and a guide bar 9 are also provided at the rear portions of the pressure rollers 3 and 4.
... are supported by the support stands 2, 2. These guide rolls 8, ... and guide bars 9, ... lead to the vicinity of the floor from above, advance horizontally, then change course upward, passing through the space between the pair of pressure rollers 3 and 4. A fabric passage 10 is formed upward from the rear position of the pressure rollers 3, 4.

Actuators 12, 12 for raising and lowering the cotton roll are attached to the support shaft 4a of the cotton roll 4. The amount of elevation and descent of about 10 to 20 mm is sufficient. At all times, the flat roll 4 is in the raised position, and the steel roll 3 and the flat roll 4 are brought into contact with each other under constant pressure.

Moreover, since both ends of the steel roll 3 and the cotton roll 4 are reduced in diameter, spaces 15, 15 are formed between them. and,
Spaces 15 and 1 on the left and right behind both pressure rollers 3 and 4
A rod-shaped cloth threading member 17, 17 having pins 16, .
is provided. The cloth threading member 17 is moved back and forth along the axis A-A by a linear motor 19.

Next, the operation of the cloth threading device composed of the actuators 12, 12 and cloth threading members 17, 17 will be explained.

First, the actuators 12, 12 lower the cotton roll 4 by a small amount (10 to 20 mm),
A gap 20 is formed between the steel roll 3 and the cotton roll 4. Next, the left and right cloth threading members 17, 17 move forward, and their tips protrude in front of both pressure rollers 3, 4 (on the upper side of the fabric path 10), so that the starting end of the fabric is held by the holding means. By piercing a certain pin 16,...
7 and 17 to hold it. If the width of the fabric for processing is narrower than the width of the left and right threading members 17, 17, a belt-shaped auxiliary fabric is stretched and held between the tips of the left and right threading members, and the fabric for processing is placed on this auxiliary fabric. Just install it. When the setting of the fabric is completed, the fabric threading members 17, 17 are moved back and returned to their original positions (downward side of the fabric path 10). and,
Raise Kotton Roll 4 and Steel Roll 3
and the cotton roll 4 are brought into pressure contact. The threading operation is now complete, and the starting end is held between the pressure rollers 3 and 4 under a constant pressure to start the operation.

If the pressure roller is a pressure heating roller,
Although it is necessary to raise the temperature in advance while rotating the pressure roller, this cloth threading device can perform cloth threading work regardless of the rotation of the pressure roller.

Note that as a method for holding the starting end of the fabric on the threading member, other methods such as a method of tying it with a string may be employed in addition to the method of the embodiment apparatus.

[Effect of idea]

As is clear from the above explanation, the cloth threading device of the calendar machine according to the present invention automatically supplies the starting end of the cloth to the space between the pressure rollers without any human intervention, so that the cloth threading operation can be carried out safely. Now I can do it.

[Brief explanation of the drawing]

FIG. 1 is a side view of one example of the cloth threading device according to the present invention, FIG. 2 is a plan view thereof, and FIGS. 3 and 4 are explanatory views of the main parts thereof. 1...Calender machine, 3...Steel roll, 4
...Kutton roll, 12...Actuator,
16...pin, 17...cloth threading member.

Claims (1)

[Scope of utility model registration request] A cloth threading device that passes a starting end of a fabric for processing through a space between a pair of pressure rollers of a calender, and passes through a space formed at both left and right ends of the pair of pressure rollers to the lower side. A cloth threading device comprising a pair of left and right cloth threading members that protrude upward from the top of the fabric, hold both ends in the width direction of the starting end of the fabric, and then retreat back to the bottom side.