JPS63175162A - Continuous heat setter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is a continuous method in which the spun yarn wound onto a bobbin with a spinning machine, winding machine, etc. is twisted set or humidified by a series of heat treatment operations using steam or the like. It concerns a heat setter.

[Prior art]

Traditionally, slivers made of raw cotton, wool, synthetic fibers, or a mixture of these are twisted and spun using a spinning machine, and then wound onto a bobbin.
After winding up and before going to the next process, it is necessary to heat the yarn using steam or the like to stop the twisting.

If the twist of the thread is not stopped, for example, if the thread breaks during winding with a winding machine, or when joining the next thread at the end of the thread, the twist will return and the thread will remain as it is. If you connect the threads in this state, you will end up with partially untwisted threads.

In recent years, when automatic winding machines are used, the ends of the threads are loosened by airflow and then grabbed and connected by a machine, so if the twisting is not stopped, the ends of the threads may become twisted. , connection becomes impossible.

In addition, before the spun yarn wound into cheese or corn is put on the knitting machine, it is necessary to humidify it by heat setting with steam in order to smooth out the fluff on the surface of the yarn or increase its strength. be.

However, in the past, whether it was spinning bobbins, corn, or cheese, the rolled-up items were placed in a metal case and transported as a unit to a steaming pot located in a separate room. It was common to place it in a pot and heat set it using steam.

However, since the steaming kettles are usually located in the periphery of the large buildings of textile mills because they use large amounts of steam and water, it is necessary to heat set using steam. In order to do this, it is necessary to transport the items in a metal case to a separate room where the steaming pot is located.
This requires equipment and manpower to secure passageways and transport, and furthermore, the process for producing yarn becomes complicated, which poses a serious obstacle to streamlining production.

[Purpose of the invention]

The present invention has been made in order to solve the above-mentioned conventional problems, and eliminates the need for transporting the spun yarn to a steaming pot installed in a separate room or manually heat-setting it with steam, as in the past. The yarn transported from the spinning machine or winding machine by a conveyor, etc. is continuously transferred to the heat setter, and the yarn is twisted in a specified manner and returned to the original line such as the conveyor. It aims to improve productivity by preventing twisting or humidifying during the production process.Furthermore, by using a small heat treatment chamber instead of a large kettle, vacuum, The purpose is to shorten the time required for each unit operation of heat treatment such as steam injection and vacuum breaking, and to save energy by reducing the heat radiation area.

[Structure of the invention]

In order to achieve the above object, the continuous heat setter of the present invention sequentially receives spun yarn conveyed from a spinning machine or a winding machine by a conveyor or the like during its JH transport, and It consists of a heat treatment chamber that continuously sets the twist of spun yarn through a series of heat treatment operations such as vacuum, steam injection, and vacuum breaking. A plurality of heat treatment units are arranged rotatably on the circumference, and the above-mentioned series of heat treatment operations are performed according to the rotation angle of the rotating shaft, so that the spun yarn transported 11η times by a conveyor etc. is continuously processed. It is transferred and stored in a heat treatment chamber, and at each station determined according to the heat setting time cycle, it undergoes a series of heat treatments such as vacuum, steam injection, and vacuum breaking, and then drains the condensate and returns to the conveyor. Unit operations such as transfer are performed continuously.

〔Example〕

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a continuous heat setter in one embodiment, and FIG. 2 is a plan view of FIG. 1.

First, in FIG. 1, a plurality of heat treatment chambers 1 and lids 2 provided thereon so as to be openable and closable via support arms 3 are supported on a vertical rotating shaft 7 by arms 6.

Next, the rotating shaft 7 is mounted on a stand 9 by means of bearings 8 and 8'.
It is rotatably attached to and rotates according to a predetermined program by a rotation mechanism consisting of a motor 11, gears 10, and the like.

In addition, as accessory equipment for heat setting, a vacuum pump 21 for first evacuating the heat treatment chamber 1, a vacuum connection fitting 22 with the heat treatment chamber 1, a connection cylinder 22', and steam heated by an electric heater 24 are also provided. A generator 23, a rotary joint 25 for sending the steam generated from the steam to the vertical rotating shaft 7, a drain tank 30 for removing drain from the heat treatment chamber 1, a connecting tank 31, a connecting cylinder 31', and a connecting tank. A vacuum pump 32 and the like for evacuating 31 are provided.

Next, we will explain the operation of the continuous heat setter of the present invention, which consists of the above-mentioned necessary parts.
The spun yarns 50 that are sequentially conveyed one by one by
The automatic hand 52 transfers it from position A on the conveyor 51 to the heat treatment chamber 1 at position B, closes the lid 2, and stores it.

Next, when the heat treatment chamber 1 advances to position C by the rotation of the vertical rotating shaft 7 on which the plurality of heat treatment chambers 1 are rotatably disposed on the circumference thereof, the heat treatment chamber 1 is moved there. The disposed vacuum connection fitting 22 is pushed up by the connection cylinder 22' and connected, and the bottom valve 4 is opened and evacuated by the vacuum pump 21.

When the heat treatment chamber 1 advances to the position, the steam valve 26
is opened, and steam flows from the steam generator 23 through the rotary joint 25 into the heat treatment chamber 1.

Since the spun yarn 50 in the heat treatment chamber 1 has already been evacuated, steam enters the inside of the yarn, and the moisture and temperature set the twist.

Furthermore, the positions of the heat treatment chamber 1 are E, F, and E in FIG.
While proceeding to step G, the temperature inside the heat treatment chamber 1 is detected by the temperature controller 27, and is controlled to a preset temperature by opening and closing the steam valve 26.

During this time, in the heat treatment chamber 1, drainage is concentrated due to heating of the spun yarn 50, heat dissipation from the surroundings, etc., so it is necessary to provide drainage drainage locations at one or two points on the circumference.

Therefore, the connection tank 31 for drain is connected to the connection cylinder 31.
', connect it to the heat treatment chamber 1, evacuate the inside with the vacuum pump 32, and then open the bottom valve 4 of the heat treatment chamber 1.
At the same time, the pressure inside the heat treatment chamber 1 becomes somewhat reduced, and the temperature of the spun yarn 50 also drops a little.

When the bottom valve 4 is closed, temperature control is performed again, and the spun yarn 50 is maintained at a predetermined temperature.

During the heat setting at a constant temperature, the temperature inside the heat treatment chamber 1 drops in this way, and the fact that steam is newly supplied is useful for increasing the moisture content of the spun yarn 50.

As the vertical rotating shaft 7 continues to rotate and reaches position P, the steam valve 26 is closed to break the vacuum. The vacuum breaker valve 5 is installed on the top of the lid 2 of the heat treatment chamber 1, Although the vacuum is maintained, the connection cylinder 31' is inserted from above.
This is a check valve that allows air to flow into the interior when pressed.

Next, the lid 2 is opened at position Q, and the spun yarn 50 inside is taken out by the automatic hand 53, transferred to the stand of the conveyor 51 at position R, and further conveyed.

As described above, the heat treatment chamber 1 for the spun yarn 50
Heat setting is completed by a series of heat treatment operations such as vacuuming, steam injection, and vacuum breaking within the chamber, but the number of heat treatment chambers 1 arranged around the circumference depends on the heat setting time. With a continuous heat setter arranged as in the embodiment shown in Fig. 2, 40
0 weight, winding time 6 hours (as #40), doffing conveyor pitch 150 mm, spinning bobbin weight 100
gr,/piece, conveyor speed 50 seconds/l pitch 150mm
An example of a program for this case is that there are 16 heat treatment chambers, 1 vacuum time section, 12 steam setting sections, vacuum break 1 section, and 5 spun yarns.
According to this, the steam setting time will be about 10 minutes, and this will be enough to set most spun yarns of 50. However, if you want to increase the setting time beyond this, you can use the heat treatment Either the number of chambers 1 is increased accordingly, or a plurality of spun yarns 50 are placed in one heat treatment chamber 1.

Also, when heat setting cheese, corn, etc.
Since the weight of each bobbin increases from 1 kg to 2 kg, the number of yarns to be processed is reduced, making it easier to process than spinning bobbins.

〔Effect of the invention〕

As explained above, conventionally heat setting using steam was thought to be carried out in batches in a separate room located at the periphery of the factory, but according to the present invention By installing the continuous heat setter of the present invention in the middle of a conveyor from a spinning machine or a winding machine,
Everything from slivers to cheese and corn can be produced in the same place, and the conveyance work between them is automated, so the labor-saving effect is significant and work time can be shortened.

In addition, the continuous heat setter of the present invention can be installed without interfering with the layout for improving factory productivity, and there is no need to draw long steam pipes, and there is no need to turn on the boiler even during 24-hour operation. It is very effective from an energy saving perspective.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a continuous heat setter according to an embodiment of the present invention, and FIG. 2 is a plan view of FIG. 1. l...Heat treatment chamber, 5...Vacuum break valve, 7
... Rotating shaft, 21 ... Vacuum pump, 22 ... Vacuum connection fittings, 23 ... Steam generator, 26 ... Steam valve,
50... Spun yarn, 51... Conveyor, 52... Power supply line.

Claims (1)

[Scope of Claims] 1. The spun yarns conveyed from the spinning machine or the winding machine are sequentially stored during their transportation, and the spun yarns being stored are subjected to a series of vacuum, steam injection, vacuum breaking, etc. A continuous heat setter consisting of a heat treatment chamber that continuously sets the twist or humidifies the twist through heat treatment operations. 2. A plurality of heat treatment chambers that sequentially accommodate the spun yarns are rotatably arranged on the circumference around the rotation axis, and the spun yarns are subjected to vacuum, steam injection, vacuum breaking, etc. A continuous heat setter that performs a series of heat treatment operations according to the rotation angle of the rotating shaft.