JPH08218268A - Squeezer - Google Patents

Abstract

PURPOSE: To provide a squeezer capable of sufficiently dehydrating a textile product to its both ends during continuous operation. CONSTITUTION: This squeezer is designed to dehydrate a textile product put through in between two revolving rollers 1 facing against each other and also being in contact with each other under a specified pressure. In this squeezer, air nozzles 3 to feed compressed air to the vicinity of both ends of a textile product 4 situated so as to be sandwichedly pressed by the rollers 1 are set up on the lower side of the upper roller 1 in the moving direction of the textile product 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a sliver (fiber bundle).
The present invention relates to a squeezing device that dehydrates textiles such as syrup to a predetermined water content.

[0002]

2. Description of the Related Art Conventionally, dehydration of a sliver after washing with water has been performed by passing it between two upper and lower rotating rollers which face each other and abut each other at a constant pressure. Here, as for the material of the surface of the rotating roller, the lower roller is made of iron, and the upper roller is made by winding hard urethane around an iron core. The former material was rubber, but a harder current material is adopted to enhance the dehydration effect.

[0003]

However, the above-mentioned conventional device has the following problems. That is, when passing the fiber product between the rotating rollers to dehydrate the fiber product such as the sliver, when the material of the rotating roller is rubber, the surface is soft, so that the sliver is wrapped and both ends of the sliver are wrapped. Although no void was formed on the outside of the portion, the surface is hard in the case of hard urethane, so that the two rotating rollers are not completely in contact with each other, and voids are formed on the outside of both ends of the sliver. Then, the squeezed water falls to the upper side along the roller in the portion where the sliver exists, but at the both ends of the sliver, the squeezed water flows out to the outside, and as the roller rotates, It flows along the surface of the roller through the gap in the traveling direction of the sliver, and is absorbed again by both ends of the sliver on the lower side of the throttle position and gets wet. The water absorbed on the lower side of the squeezing position is not dehydrated, so that a sliver with wet ends can be obtained as a product.

When both ends of the sliver get wet in this way, the water content in the width direction of the sliver becomes non-uniform, and the sliver cannot be dried sufficiently, so that the quality of the product deteriorates. In addition, there has been a problem that the operation rate of the machine is lowered due to winding around the rotating part in the subsequent process.

An object of the present invention is to solve the above problems of the conventional apparatus and to provide a squeezing roller capable of sufficiently dehydrating both ends of a product sliver.

[0006]

DISCLOSURE OF THE INVENTION The present invention for solving the above-mentioned problems is provided with two rotary rollers opposed to each other and abutted against each other at a constant pressure, and a fiber product is provided between the rotary rollers. A device for dehydrating the fiber product by way of the above, wherein an air nozzle for sending compressed air to the vicinity of both ends of the fiber product at a position where it is pinched by the rotating roller is used in the moving direction of the fiber product. It is characterized in that it is provided on the lower side of the rotating roller.

Here, the form of the fiber product is not limited to a sliver, but includes fiber bundles such as wraps and webs, woven fabrics, knitted fabrics, yarns, non-woven fabrics, etc. , Natural fibers such as cotton, silk, hemp, and synthetic fibers such as polyester, nylon, acrylic, rayon and the like, and a porous material such as a sponge.

[0008]

According to the present invention having the above-mentioned structure, the air compressed by the air nozzles is supplied near both ends of the fiber product at the throttle position. Thereby, when dewatering the fiber product with the rotary roller, even if the squeezed water tries to flow forward, the compressed air blows the water backward (toward the upper side). It is possible to solve the problem that water flows and is reabsorbed by both ends of the dehydrated fiber product.

[0009]

Embodiments of the present invention will now be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an apparatus according to an embodiment of the present invention. As shown in the figure, the diaphragm device of the embodiment has two upper and lower rotating rollers (1) and a pressure device (2).
And an air nozzle (3).

The rotating roller (1) is an upper roller (1
a) and the lower roller (1b), the lower roller (1b) is fixed, and the upper roller (1a) is vertically movable. In addition, the lower roller (1
b) is made of iron, and the upper roller (1a) has an iron core wound with hard urethane.

The pressing device (2) is a device for applying pressure to the upper and lower movable upper roller (1a), and can be constituted by, for example, an air linder. The applied pressure is
Determined according to the characteristics of textiles and dehydration conditions.

The air nozzle (3) is provided on the lower side in the direction of the arrow A toward the vicinity of the position where the upper roller (1a) and the lower roller (1b) are in contact with each other, and the ejection hole ( 3a), and the ejection holes (3a) are provided so as to face the both ends of the fiber product at the throttle position. The air nozzle (3) is connected to an air compressor (not shown) that emits air having a predetermined pressure.

For example, when the squeezing device having such a structure dehydrates the wool sliver after washing with water, it dehydrates as follows.

Sliver (4) in the apparatus of this embodiment
The dehydrated state of is shown in FIGS. 2 and 3. In FIG. 3, a hatched portion of the sliver (4) is a sliver portion (4a) having a high water content before dehydration, and a non-hatched portion is a sliver portion (4b) having a low water content after dehydration. ) And the double-hatched portion is the squeezed water (5). Further, the diaphragm position is indicated by a chain line, and the position of the rotating roller (1) is indicated by a broken line.

As shown in FIGS. 2 and 3, according to this embodiment, the water (5) squeezed out when the sliver (4) is passed through the rotating rollers (1) for dewatering, In the portion where the sliver (4) is present, it flows upward along the lower roller (1b) as shown in FIG. 2, but at both ends of the sliver (4) it flows outward as shown in FIG. Here, in the case of the conventional device without the air nozzle (3), the water (5) flowing out to the outside also flows out to the lower side as the rotating roller (1) rotates and is reabsorbed by both ends of the sliver. Will be done. On the other hand, in the apparatus of the present embodiment, the compressed air is ejected from the air nozzle (3) toward the vicinity of both ends of the sliver (4) at the throttle position, so that the both ends of the sliver (4) are ejected. Even if the squeezed water (5) is about to flow to the lower side, it can be blown back (to the upper side).

As a result, water (5) squeezed out during dehydration
Will not be reabsorbed by both ends of the sliver (4). Therefore, as shown in FIG. 3, both ends of the sliver (4) on the lower side of the squeezing position are kept dehydrated, and the water content is uniformly lowered in the entire width direction.

The air pressure supplied to the air nozzle is 2.
When the flow rate is 5 kg / cm ² and the flow rate is 40 l / min, 24 wool slivers are continuously dehydrated at a speed of 6 m / min by both the apparatus of this example and the conventional apparatus, and the results are shown in Table 1. .

[0018]

[Table 1]

As shown in Table 1, the water content of the sliver after dewatering with the squeezing roller is 94.5% in the conventional apparatus.
It was found that in the apparatus of the example, it decreased to 37.0%.

As described above, according to the apparatus of this embodiment, since the dehydrated water is not reabsorbed by the both ends of the sliver, a stable dehydrating effect can be obtained continuously for a long time.

[0021]

EFFECTS OF THE INVENTION According to the present invention, in the dehydration of a textile product after washing with water, it is possible to prevent re-absorption of the squeezed water, so that the water content in the width direction is constant, and sufficient dehydration can be achieved.
High quality fiber products can be supplied, and the drying efficiency is improved, which saves energy and significantly reduces troubles in the post process.

[Brief description of drawings]

FIG. 1 is a perspective view showing an apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB in FIG.

FIG. 3 is a diagram showing a dehydrated state of a fiber product by the apparatus of the embodiment.

[Explanation of symbols]

 1 Rotating Roller 1a Upper Roller 1b Lower Roller 2 Pressurizing Device 3 Air Nozzle 3a Jet Hole 4 Sliver 4a Sliver with High Water Content 4b Sliver with Low Water Content 5 Squeezed Water

Claims (1)

[Claims] 1. An apparatus for dehydrating a fiber product, comprising two rotating rollers which are opposed to each other and are brought into contact with each other at a constant pressure, wherein the fiber product is passed between the rotating rollers. A diaphragm device provided with air nozzles for sending compressed air near both ends of the fiber product at a position where it is nipped by the rotary roller, on the lower side of the rotary roller in the moving direction of the fiber product. .