JPS61275456A - Apparatus for heat treatment of continuous fiber - 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 The present invention is an improvement of a continuous heat treatment apparatus for the purpose of continuously performing heat treatment, condensation, fixation, etc. of one roll of fiber bundles using pressure heat ts, ff such as saturated steam. This invention relates to an invention that facilitates operation when using a medium with a higher pressure than conventional devices.

An earlier invention is Patent No. 697100 entitled "Crimped Fiber Manufacturing Method J by Continuous Moist Heat Fixing Method." In subsequent research on this invention, it was discovered that pressure sealing could be achieved with a mechanism that was more advanced than the pressure sealing mechanism of that patent. That is, the pressure seal part was adjusted by adjusting the ratio between the alt bundle supply amount and the conveying cloth speed.

This can be easily done by changing the degree of 111M sealing in the long hole.In addition, the sealing method using a roller can be used to prevent leakage and to allow the roller to rotate.
! ! It was found that it was quite difficult to achieve both the reduction of friction and pressure sealing was achieved only by using long holes with a constant cross-sectional area.

This heat treatment method has come to be generally carried out in a simplified form as described above, and is used for heat treatment at about 130°C.

In recent years, it has begun to be required that synthetic fibers with high heat resistance be subjected to heat treatment and 9-fold shrinkage fixing, but this requires treatment at temperatures of 150° C. or higher. The present applicants have filed a patent application No. 58-145954 in order to carry out this heat treatment by a dry or semi-dry method.
invented. The present invention performs similar high-temperature heat treatment using saturated steam,
This is an improvement to a continuous fiber heat treatment device that aims to facilitate heat treatment using hot water or the like.

The present invention will be explained in detail below with reference to the drawings.

In FIGS. 1, 2, and 3, the mm bundle 10 advances in the form of a lump by the compression box 2 compression 411, is wrapped in the conveying cloth 3 by the wrapping device 12, and forms a band-shaped body 14,
It enters the high pressure chamber 2 through the inlet pressure seal elongated hole 4. A high pressure heat treatment fluid is present in the pressure chamber z. This fluid flows out along the inlet pressure seal elongated hole 4, but since the elongated hole is filled with &l fibers, the outflow remains only slightly.

The strip passes through the outlet pressure seal 5 and is opened in an unwrapping device 13 to remove the conveying cloth and the treated ml,! It is divided into ill and ill.

The outflow of high-pressure fluid at the outlet seal is also kept small.

In continuous straddling heat treatment, the pressure in the high-pressure chamber is about 3 atm, and even if the WAN filling degree in the long hole is increased to keep the amount of ejection to a small level, the resistance of the strip passing through the long hole is small. was small, and the conveyed cloth was driven only by the main drive roller 6.

If the heat treatment temperature is increased, the pressure within the high pressure chamber must also be increased. Accordingly, increase the length of the elongated hole to increase the pressure sealing ability of the inlet and outlet.

In addition, when the fullness of m, 1 in the long hole is increased, the resistance given to the strip passing through the hole increases, the load on the conveying cloth increases, and the conveying cloth has elastic elongation, making the operation jerky. become. Feature #I of the present invention is the provision of a strip-driving grasping roller 7 within the IE force chamber. The purpose of this roller is to provide a driving force that counteracts some or all of the passage resistance in the entry pressure seal elongated hole 4° and the wrapping device 12. The purpose of the exit gripping roller 17 is to provide a driving force to counter the passage resistance in the exit side seal elongated hole.
It is not necessary as long as the main drive roller 6 has sufficient propulsive force.

FIG. 1 is a diagram illustrating a case in which one gripping roller 7 is provided in a pressure processing chamber.

In conventional continuous 1afi heat treatment equipment, there were no moving parts in the pressure chamber. Driving was therefore extremely easy. However, moving parts can easily cause accidents. Even if a part of m or lt gets wrapped around the roller, stop N-rolling, lower the pressure, and clean it.

There must be.

The apparatus shown in FIG. 2 is a diagram illustrating a case in which an intermediate pressure chamber 8 is provided by partially forming an elongated seal hole on the exit side, and a roller 7 for driving a belt-shaped body is placed in the intermediate pressure chamber 8. There is an intermediate pressure chamber 8 between the intermediate seal elongated hole 5' and the rear seal elongated hole 5'', and the strip drive gripping roller is located inside the intermediate pressure chamber 8.If the roller requires maintenance, , open the lid of the intermediate pressure chamber.In this case, all the pressure inside the high pressure chamber 2 is applied to the intermediate seal elongated hole 5', so there will be more leakage, but only during maintenance, and during operation of the heat treatment equipment. You can also perform maintenance operations.

FIG. 3 is a diagram illustrating a case where a control valve lt keyaki is provided in the intermediate seal elongated hole. When opening the lid of the intermediate pressure chamber 8, the intermediate seal elongated hole is at 5° wa! If the degree of filling is not very high, only the fibers may be pushed out by the pressure of the high pressure chamber. This can often be prevented by the rollers 7, but can occur if the surface friction of the fibers is low. The control valve 814M is a device for preventing this, and by operating it in the closing direction, it is possible to prevent 88 from being pushed out.

Or m in the middle seal long hole! ! It is possible to extend the heat treatment time by designing the degree of filling to be small and opening the control valve 15 during normal operation so that the pressure in the intermediate pressure chamber 8 is equal to that in the high pressure chamber 2. can.

The strip-driving grasping roller is used to grasp the strip.
At least one roller shaft must be movable in a direction perpendicular to the direction of web travel.

The roller may be placed in the pressure section together with the bearing. However, placing the bearing in a high pressure chamber is not preferable from the viewpoint of copper durability and bearing performance. The present application further proposes a structure in which the bearing can be removed externally.

FIG. 4 is a diagram illustrating a structure in which the bearing is placed outside the pressure chamber. The grasping roller is composed of a fixed roller 21° and a movable roller 22. The shaft 23 of the fixed roller is supported by a bearing 25 fixed outside the pressure chamber 20, and the portion where the sleeve penetrates the pressure chamber wall is pressure-sealed by a seal 27. has been done. Here, the pressure chamber 20 is the high pressure chamber 2 in FIG. Or it corresponds to the intermediate pressure chamber 8 in FIGS. 2 and 3. The shaft 24 of the movable roller is supported by a bearing 26 located outside the pressure chamber, and the portion where the shaft passes through the pressure chamber is pressure-sealed by a seal 28. The seal 28 and the bearing 26 are connected by a connecting piece 30 so that they do not move relative to each other in the direction perpendicular to the axis, so that the axis 24 remains parallel to the axis 23 and the distance between them can be changed slightly by force. 2. It is supported by a device not shown. The seal 28 and the pressure chamber wall are connected by a pressure-resistant, flexible tubular material z9, such as a metal bellows.

According to the present invention, from 5 atm to about 10 atm.

Now you can quickly read and process WAN bundles.

In addition, in the conventional low-pressure treatment method, it took some time to find the stable operating conditions necessary for pressure sealing, but by using the present invention, it has become extremely easy to start the equipment.

[Brief explanation of drawings]

FIG. 1 is a side view illustrating the structure of the continuous fiber heat treatment apparatus of the present invention, which shows a case in which a belt-shaped body driving and grasping roller is provided in a high-pressure chamber. FIG. 2 is a side view illustrating the structure of the continuous fiber heat treatment apparatus of the present invention, showing a case in which a belt-shaped body driving gripping roller is provided in the intermediate pressure chamber. FIG. 3 is a side view illustrating a case in which a belt-shaped object passage surface fine adjustment valve of an intermediate pressure seal elongated hole is provided in an intermediate pressure chamber. FIG. 4 is a cross-sectional view illustrating the structure of the belt-like object driving and grasping roller. Explanation of main symbols 1: Pressure box type crimper 2: High pressure chamber 3: Conveying cloth 4.5.5', 5'': Pressure seal long hole 6: Main drive roller 7: Strip drive grasping roller 8: Intermediate pressure chamber 10: Rope M square 11: Processed fiber bundle 12: Wrapping device 13: Wrapping and unwrapping device 14: Band-shaped body 15: Seal long hole adjustment valve 17: Band-shaped body drive grasping Exit roller 20: Pressure chamber 21: Grasping Fixed roller 22: Grasp movable roller 23: Fixed roller shaft 24 Two movable roller shafts 25: Fixed roller bearing 26: Movable roller bearing 27: Fixed roller shaft seal 28: Movable roller shaft seal 29: Pressure-resistant flexible tube 30: Bearing shaft seal combination Single Applicant: C Stock] Polymer Processing Research Institute Kaya 1 Figure 3 Dark Figure 4

Claims (1)

[Claims] 1) The fibers extruded in a lump at the outlet of the compression box type crimper are wrapped in a conveyor cloth to form a belt, and the belt is passed through a long hole to reduce the pressure. 1. A continuous fiber heat treatment device for sealing and passing a fiber through a high pressure chamber, characterized in that the continuous fiber heat treatment device has a grasping roller for actively driving a strip within the high pressure chamber. 2) The continuous fiber heat treatment apparatus according to claim 1, characterized in that the strip-driving grasping roller is provided in the intermediate pressure chamber between the exit-side intermediate pressure seal slot and the post-pressure seal slot. 3) The continuous fiber heat treatment apparatus according to claim 2, characterized in that the outlet-side intermediate pressure seal elongated hole has a mechanism for adjusting the cross-sectional area of the band-shaped body passage section. 4) In claims 1), 2), and 3), the bearing portion of the strip-driving grasping roller is located outside the pressure chamber, and the shaft sealing device of the roller shaft is supported so as to move together with the shaft, and the shaft sealing device and the pressure A continuous fiber heat treatment device characterized in that the chamber is connected by a pressure-resistant flexible pipe.