JPH08246330A - Sealing device of high pressure steamer for treating fibrous fiber product - Google Patents

Abstract

PURPOSE: To provide a sealing device capable of preventing the fibrous fiber product from being set in a tense state in the sealing device disposed on the feeding port side of a high pressure steamer, when the fibrous fiber product is subjected to a wet-heat treatment with the high pressure steamer. CONSTITUTION: This sealing device is provided with a feeding roll 32 driven at the peripheral speed same as or larger than that of fibrous fiber product- pulling rolls disposed in a high pressure steamer, and further with cooling passageways 35, 40 used for controlling the rise of temperature in a fiber product passageway formed between the feeding roll and a fibrous fiber product- introducing port 22 to <=100 deg.C, and disposed around of the fiber product passageway. Since the temperature of air in the sealing device can be controlled to <=100 deg.C, the thermal setting of the fibrous fiber product passing through the sealing device can be avoided. Thereby, a high quality shrinkage set can be performed in the steamer can.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-pressure steamer sealing device used for continuously shrinking a filamentous fiber product such as a long thread or string inside a high-pressure steamer.

The inventors of the present invention scoured, bleached, or crimped long threads, such as polyester or nylon, which are industrially produced and processed, for example, for carpets, and thread-like fiber products such as strings, in a short time. As an apparatus for carrying out the processing, for example, a patent application was filed in Japanese Patent Application No. 4-120439 and is disclosed in Japanese Patent Application Laid-Open No. 5-321129.

This known apparatus, for example, as shown in FIG. 1, has a high-pressure steamer can body 4 provided with sealing mechanisms 2 and 3 which retain high-pressure and high-temperature wet heat and allow passage of the filamentous fiber product 1.
Inside, a plurality of pairs of arms 7 are arranged in the radial direction around a support cylinder 6 supported by a bearing 5 fixed inside the high-pressure steamer can body 4, and are pivotally supported at the tips of these arms. A plurality of sets of endless ropes that span the rope pulleys 8 and that are formed of a flexible material to form a take-up frame for the filamentous fiber product, and the endless ropes 9 that support the shaft of the support cylinder 6. Drive means 10 for gently moving in the direction, a guide rod 11 for winding the filamentous fiber product supplied into the steamer can body 4 around the winding frame, and a guide rod 11 for winding around the winding frame. Guide rod 1 that unwinds the wound filamentous fiber product and guides it out of the steamer can body
A high-pressure steamer can body 4 is provided with a winding and unwinding mechanism 14 of a filamentous fiber product having a precise and complicated structure, which comprises 2 and a drive means 13 for rotating the guide rod 11 and the guide rod 12. Filamentous fiber product 1 continuously supplied to
Is passed through the winding and unwinding mechanism 14 to ensure a long stay time of the filamentous fiber product in the high-pressure steamer can body 4, and the filamentous fiber product 1 supplied into the steamer can body, The filamentous fiber product 1 is expected to shrink in a steamer can body by being wound around a winding frame composed of a flexible endless rope 9.

By operating the winding frame while rotating the guide rod 11, the filamentous fiber products 1 outside the steamer can body 4 are successively fed into the steamer can body 4 through the sealing mechanism 2. The filamentous fiber product 1 which has been subjected to the predetermined wet heat treatment in the steamer can body 4 is drawn out of the steamer can body 4 via the sealing mechanism 3.

However, in the filamentous fiber product 1 introduced into the steamer can body 4 through the sealing mechanism 2, the guide rod 1 is used.
The filamentous fiber product immediately after being introduced into the steamer can body by passing through the sealing mechanism 2 by the winding operation to the winding frame by the turning force of 1 and further the exhaust pressure action of the sealing mechanism 2 from the pressure inside the steamer can. Tension (tensile force) is added to 1,
Moreover, the filamentous fiber product 1 introduced into the steamer can body 4 after passing through the sealing mechanism 2 receives the high-humidity heat in the steamer can body 4 immediately so that the filamentous fiber product 1 is in a tension state immediately after passing through the sealing mechanism 2. There was a problem that the filamentous fiber product 1 could not be shrink-processed within the steamer can body because it was set.

The present invention has been made by paying attention to the above conventional problems, and the thread-like fiber product of the tension roll in the high-pressure steamer is provided at the thread-like fiber product inlet of the high-pressure steamer for wet heat treatment of the thread-like fiber product. A feeding roll driven at a peripheral speed equal to or higher than the pulling peripheral speed of the above is provided, and the temperature in the passage formed between the feeding roll and the pulling roll in the steamer can body is increased. It is an object of the present invention to provide a sealing device provided with a cooling means for suppressing.

Since the filamentous fiber product passing through the sealing device is not heated to, for example, 100 ° C. or higher, heat setting in the sealing device can be avoided.

If the peripheral speed of the feeding roll installed in the sealing device is set higher than the peripheral speed of the pulling roll provided in the steamer can body, the filamentous fiber product is passed through the sealing device and supplied into the high-pressure steamer. The tensile force does not act on, and effective contraction processing can be expected.

Since the temperature distribution difference in the sealing device is low especially on the feed roll side in the sealing device, the filamentous fiber product fed into the sealing device is discharged into the sealing device due to the high-pressure drainage action inside the steamer can. Even if a pulling force is applied, the thread-like fiber product is not heat-set in a tensioned state, and a shrink-set textured yarn of good quality can be obtained.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments shown in the drawings.

Reference numeral 21 is a high-pressure steamer can body corresponding to the conventional high-pressure steamer can body 4, and 22 is an inlet for continuously introducing the filamentous fiber product 23.
In the vicinity of the steamer can body 4, the pulling roll 24 of the filamentous fiber product 23 is installed.

Reference numeral 25 denotes a sealing device connected to the outside of the introduction port 22. The sealing device 25 is the outer cylinder 2
6, an intermediate cylinder 27 located concentrically with the outer cylinder 26 in the outer cylinder 26, and an inner cylinder 28 located concentrically with the intermediate cylinder 27 inside the intermediate cylinder 27. ing.

At one end of the inner cylinder 28, the filamentous fiber product 2
3, an introduction hole 29 is formed at the other end, and a plurality of cold air intake holes 31 are formed on the peripheral wall surface in the vicinity of the introduction hole 30. A roll accommodating chamber 33 for accommodating a pair of feed rolls 32 is formed between the cold air intake hole 31 and the introduction hole 29.

Inside the intermediate cylinder 27, a cold air chamber 35 is formed which is independently partitioned by a partition 34 orthogonal to the axial direction. The cold air chamber 35 is provided with a cold air supply port 36. The other of the partitions 34 is formed in a steam / cool air mixing chamber 37, and an opening 38 of the mixing chamber 37 communicates with the inside of the inlet 22. Further, an exhaust pipe 39 is connected to the mixing chamber 37.

Both ends of the outer cylinder 26 are hermetically sealed, and the inside of the outer cylinder is formed by a cold water supply pipe 41 and a cold water outlet pipe 42 into a cooling chamber 40 for passing cold water.

The structure of the sealing device of this embodiment has been described above. Next, the operation thereof will be described. For example, the filamentous fiber product 23 such as polyester, nylon or the like to be heat-moisture treated includes the introduction hole 29, the feeding roll 32, and the delivery. The high-pressure steamer can body 21 is introduced into the high-pressure steamer can body 21 through the hole 30 and the opening 38 in order, and then the high-pressure steamer can body has a predetermined high temperature and high humidity (for example, a steam atmosphere of 155 ° C.).
Then, the filamentous fiber product in the high-pressure steamer can body 21 is prepared for wet heat treatment.

The cold air supply port 3 in the sealing device 25
6, the cold air of about 0 ° C. is sent into the cold air chamber 35, and the cold water of about 5 ° C. is introduced into the cooling chamber 40 from the supply pipe 41 and sequentially discharged from the cold water outlet pipe, and the inside of the mixing chamber 37 is supplied. And, the temperature rise inside the cool air chamber 35 is suppressed.

Then, when the pulling roll 24 in the steamer can 21 is driven and the feed roll 32 is driven at a peripheral velocity equal to or faster than the peripheral velocity of the pull roll 24, the feed roll 32 is driven. Three
The filamentous fiber product 23 fed into the sealing device 25 at 2
Heating is blocked by the cold air in the inner cylinder 28, and even if, for example, heat conduction, heat convection, etc. are expected, the temperature rises only up to about 50 ° C. Filiform fiber product 23 that has passed through the inner cylinder 28
Then passes through the mixing chamber 37.
Inside, the cool air leaked from the outlet hole 30 of the inner cylinder 28,
The steam in the high-pressure steamer can body 21 is mixed, and further, by the water cooling means in the cooling chamber 40, about 70 ° C to 100 ° C.
Since it is a mixed gas up to about, the temperature of the filamentous fiber product 23 passing through the mixing chamber 37 is, for example, 100 ° C.
The above heating is suppressed. Then, after passing through the introduction port 22 of the high-pressure steamer can body and being introduced into the high-pressure steamer can body, the temperature inside the high-pressure steamer can body is about 155 ° C.
The predetermined process is started by receiving the high temperature and humidity heat.

As described above, the filamentous fiber product passing through the sealing device 25 of this embodiment is not heated in the sealing device 25, for example, at 100 ° C. or higher, and thus is introduced through the sealing device. Even if a tension force is applied to the thread-like fiber product due to the steam exhausting pressure inside the sealing device, it will not be set in the tensioned state, and therefore, the high pressure after passing through the sealing device. In the steamer, effective crimping of filamentous fibers can be expected.

Further, by setting the peripheral speed of the feeding roll 32 provided in the sealing device to be faster than the peripheral speed of the pulling roll 24 provided in the high-pressure steamer, the filamentous fiber product transferred in the high-pressure steamer is in a tension-free state. In this way, heat setting of the filamentous fiber until it is supplied into the high-pressure steamer can body is suppressed, and it is possible to expect good quality shrink-set processing in the steamer can body.

[Brief description of drawings]

FIG. 1 is a structural explanatory view of a conventional high-pressure steamer for processing filamentous fiber products.

FIG. 2 is a structural explanatory view of a sealing device according to an embodiment of the present invention.

[Explanation of symbols]

21 ... High-pressure steamer can 22 ... Introducing port 23 ... Filamentous fiber product 24 ... Pulling roll 25 ... Sealing device 26 ... Outer cylinder 27 ... Intermediate cylinder 28 ... Inner cylinder 29 ... Introducing hole 30 ... Outflow hole 31 ... Cold air intake hole 32 ... Feeding roll 33 ... Roll accommodating chamber 34 ... Partition 35 ... Cold air chamber 36 ... Cold air supply port 37 ... Mixing chamber 38 ... Opening 39 ... Exhaust pipe 40 ... Cooling chamber 41 ... Supply pipe 42 ... Cold water outlet pipe

Claims (1)

[Claims] 1. A sealing device installed in a thread-like fiber product inlet of a high-pressure steamer for wet heat treatment of the thread-like fiber product, wherein the sealing device is provided with a thread-like fiber product tensioner provided inside the high-pressure steamer. Is equal to the peripheral speed of the roll,
Alternatively, it is provided with a feed roll driven at a peripheral speed higher than that, and a cooling passage for suppressing an increase in temperature in the fiber product passage formed between the feed roll and the thread-like fiber product introduction port to 100 ° C. or less. Is provided around the above-mentioned fiber product passage, and a sealing device for a high-pressure steamer for treating a fiber product.