JPH03180568A - Apparatus for leading out fabric - Google Patents

Abstract

PURPOSE:To always stably feed a fabric to the center of a mangle without causing creases in the fabric by sensing offset of the fabric, taken out of a continuous treating bath and guided to a horizontal screw roller and controlling the flow rate of a pair of left and right liquid flow guiders based on the sensed signal. CONSTITUTION:A fabric 5 taken out of a continuous treating bath is guided through a rotatable horizontal screw roller 4 provided with each half of left-handed screw and right-handed screw left and right to a mangle. In the process, the offset of the fabric 5 is sensed with sensors 6 and 6' provided on both sides of the fabric 5 between the aforementioned screw roller 4 and the mangle. On the other hand, a pair of horizontal liquid flow guiders 8 and 8' constructed so that mutual planes including axial lines of nozzle groups 7 and 7' at the front and back symmetric positions relatively to the fabric 5 introduced into the above-mentioned screw roller 4 may mutually cross on the fabric 5 and jet flows from one 7 of the nozzle groups may press the fabric part on the left side of the central vertical cross section (0-0) and the jet flow of the other nozzle group 7' may press the fabric part on the right side are arranged to control the flow rate of the guiders 8 and 8' based on the aforementioned offset signal. Thereby, the fabric 5 is retracted to the center of the roller 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an apparatus for removing cloth from a continuous treatment tank for cleaning cloth, embedding, relaxing, etc. of highly twisted yarn fabrics.

[Conventional technology]

Conventional processing equipment, in which a continuous processing tank in which the cloth is conveyed bent into a wave shape, is equipped with a device that gives sufficient kneading and cleaning effects to the cloth during conveyance, is disclosed in Japanese Patent Publication No. 59-5701 and Japanese Patent Publication No. Sho 62. It is known from Publication No. 170573, etc., that the cloth drawn out from such a continuous treatment tank is not completely unfolded, but usually has some "wrinkles". On the other hand, since the liquid contained in the drawn-out cloth must be squeezed out between two rubber rollers called a mangle that are pressed against each other, the cloth introduced into the mangle remains wrinkled until the end, making it unusable.

In order to prevent this wrinkle, a screw roller is installed between the cloth outlet side of the continuous processing tank and the mangle disposed above it, with a left-hand thread and a right-hand thread through which the cloth passes. It is also known to drive and rotate in the spreading direction of the cloth.

[Problem to be solved by the invention]

In the above-mentioned conventional processing equipment, the wavy bent fabric floated and conveyed in the continuous processing tank tends to be biased toward the center vertical section of the fabric delivery device, so the fabric introduced into the screw roller is shifted closer to the center longitudinal section. While it is normal for it to shift to the left or right,
The screw row 2 has the disadvantage that if the cloth is introduced even slightly to the left or right, the cloth will be further shifted in that direction, so the cloth introduced into the mangle may be largely biased to either the left or right. Wrinkle removal using a screw roller [This device cannot be applied.

The present invention addresses this problem and aims to continuously supply cloth spread by a screw roller to a substantially central position of a mangle, regardless of the width of the cloth.

Means for Solving the Problem] In order to achieve this object, the present invention includes detectors on both sides of the cloth between the screw row 2 and the mangle that emit a signal when the cloth is shifted from the center position to the side. A pair of horizontal liquid flow guiders each having a nozzle group arranged front and rear symmetrically with respect to the cloth to be introduced into the screw roller are arranged so that the planes including the nozzle axes of the liquid flow guiders intersect on the cloth. The liquid ejected from the nozzle of one liquid flow guider is directed to the left side of the fabric portion across the center longitudinal section of the cloth guider, and the liquid ejected from the nozzle of the other liquid flow guider is directed from the center longitudinal section of the cloth delivery device. Set the nozzle attachment angle to each liquid flow guider so as to press the cloth part on the right side of the chest to the right, respectively. The pressurized liquid is supplied almost evenly at a flow rate that allows the cloth to be spread, and when a detector on either the left or right side of the cloth emits a signal, it is sent to the liquid flow guider that spouts the liquid to the opposite side. A flow rate control device is provided to increase the pressurized liquid supply flow rate to enable the cloth to be pulled back to the center of the screw roller.

[For production]

Since the present invention has the above-mentioned configuration, when the mangle takes out the cloth from the continuous processing tank, the cloth can be spread out if the cloth that has passed through the screw roller is at approximately the center position and neither of the detectors on both sides emit a signal. A pair of liquid flow guiders that are supplied with pressurized liquid at a substantially equal flow rate have their planes including the nozzle axes intersecting each other by clicking on the cloth through which the liquid flow guiders pass, so that the liquid ejected from the nozzles does not overlap with each other. Since the interference of -
The liquid ejected from the nozzle of one liquid flow guider presses the fabric part on the left side of the center longitudinal section of the cloth guider to the left, and the liquid ejected from the nozzle of the other liquid flow guider presses the fabric part on the right side of the center longitudinal section of the fabric guider to the left. The force pushing the cloth to the right acts along the same horizontal line on the cloth and is approximately balanced.

Therefore, the liquid ejected from the nozzles of both liquid flow guiders prevents the cloth passing through it from moving back and forth, guides the cloth to the introduction part of the screw roller, and spreads the cloth introduced to the screw roller left and right. Since the wrinkles are substantially removed, the cloth that comes into contact with the left and right threads of the screw roller is completely spread out at the initial stage due to the frictional force with the threads.

Also, if the sensor on either the left or right side, for example on the right side, emits a signal due to the cloth being hung on the left or right side while being conveyed in the continuous processing tank, or due to the cloth being placed on the left or right side due to the screw roller, etc. The flow rate of pressurized liquid supplied to the liquid flow guider that spouts liquid to the left side increases, and the liquid ejected from the liquid flow guider blows the cloth part on the left side of the central longitudinal section of the cloth delivery device to the left. The force pressing the cloth part on the right side of the center longitudinal section increases significantly due to the liquid ejected from the other liquid flow guider, so this increased pressing force acts on the approximately left half of the fabric. An inclined tension acts in cooperation with the cloth's own weight between the fabric part of The approximately right half of the fabric is pulled back against the frictional force with the screw roller, and at the same time the left half thread of the screw roller sends the approximately left half of the fabric to the left, so the fabric does not wrinkle. The screw roller is pulled back to approximately the center position of the screw roller without any occurrence.

When the cloth returns to the vicinity of the center position, the right end of the cloth separates from the right detector and the detector stops transmitting, so that the liquid flow guider returns to its initial state.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. The continuous processing tank 1 shown in FIG. The wave-shaped bent cloth 5a that has passed through is constantly propelled in the direction F in the vicinity of the liquid surface H, and drives and rotates the upper and lower pressing rubber rollers 2 and 3 of the mangle attached to the support on the processing tank 1 in the direction of the arrow in the figure. By doing so, the wavy bent fabric is pulled up from the continuous processing tank via the screw rollers 4 supported at both ends by the support 10. The rotational speed of the rubber rollers 2 and 3 can be changed depending on the type and thickness of the cloth.

The screw roller 4 has a left-handed thread 4 with a significantly large pitch.
b and a right-handed thread 4a (Fig. 2) are provided symmetrically with respect to the central longitudinal section 0-0 of the cloth guide device, and the screw roller is connected to the rubber roller 2 of the mangle via an appropriate transmission. It is driven in the direction of the arrow in FIG. 1 at a circumferential speed equal to or higher than the cloth drawing speed shown in No. 6, and the rotational speed can be adjusted depending on the type and thickness of the cloth.

Detectors 6' and 6 respectively disposed on the left and right sides of the cloth 5 between the screw roller 4 and the mangle are switches with a left-right symmetrical configuration, and the upper ends of the detectors are attached to insulating plates 11'11, respectively, so that they can swing left and right. conductive detection rods 12', 12 pivotally attached to the insulating plate, and an angled electric contact 13 fixed to the insulating plate so as to be adjustable up and down.
', 13, and the detection rod is normally held in the vertical position shown in the figure by gravity to open the switch, but as the cloth 5 is shifted to the left and right, the detection rod rotates and comes into contact with the electrical contact. Then, it emits a signal.

The movable platforms 14 and 14' on which the detectors 6 and 6' are respectively attached are as follows:
A chino 1 is slidably supported on an angled horizontal rail 15 attached to a support 10, and connects between the two movable platforms to chain wheels 16 and 17 attached to both ends of the horizontal rail.
8.19 is placed in a loop, and by rotating one chain wheel, the two detectors are displaced symmetrically to accommodate changes in cloth width.

A pair of liquid flow guiders 8 provided below the screw roller 4
, 8' are simply the same configurations facing each other and changing the mounting angle phase, so below we will mainly explain the liquid flow guider 8, but parts with a dash in the part number are the same as those of the liquid flow guider 8'. It is a compatible part. Liquid flow guider 8 is 85
As shown in the figure and FIG. 6, a large number of nozzles 7 are connected to a U-shaped tube 21 having a pressurized liquid inlet 20 connected to the center of the base end through elbows 22 in a symmetrical arrangement, and each opposing nozzle 7
．． The axes of 7 intersect on the center line C-C of the pressurized liquid tube 20, and the U-shaped tube 21 is made to have a length that protrudes to the right side from the center longitudinal section O-0 of the cloth delivery device by an amount L. ,
The nozzle mounting pitch in the D range for spraying the nozzle ejected liquid on the left cloth portion near the central longitudinal section is made smaller than the nozzle mounting pitch for spraying the ejected liquid on the other left cloth portion.

The liquid flow guiders 8, 8' facing each other are arranged so that a plane A including the axes of all the nozzles 7 and a plane B including the axes of all the nozzles 7' intersect with a button on the cloth 5 introduced into the screw roller. In addition, the overlapping parts of both U-shaped tubes 2121' are connected with a tie plate 26 (FIG. 6), etc., and the pressurized liquid inlets 20, 20' at both ends are connected to the cover 10 on both sides, which are integral with the support 10. The nozzle of the liquid flow guider 8' presses the cloth part on the left side to the left as shown in the center longitudinal section 0-0 of the cloth guider, and the liquid ejected from the nozzle of the liquid flow guider 8' Press the fabric part on the right side to the right. The nozzles 7, 7' are of a conventionally known type that ejects liquid in advance.

The pressurized liquid inlets 20, 20' of both liquid flow guiders are equipped with rotary valves 24, 24 whose opening degree can be adjusted, such as ball pulp or butterfly valves, respectively, as shown in FIG.
' is connected in parallel to the hydraulic pressure source 25 via '. The liquid pressure source 25 may be a centrifugal pump that circulates the liquid within the continuous processing tank 1.

26 and 26' indicate control cylinders that adjust the opening of each rotary valve, and the piston rod 2 of each control cylinder
Between 7 and 27' and the rotating shafts 28 and 28' of the corresponding rotary valves 24 and 24', there are engagement mechanisms of a roller and a Scotch choke that convert linear motion of the piston rond into rotational motion of the rotating shaft, respectively. 29, 29' are provided,
By extending both control cylinders as shown,
When the tips of the piston rods are in contact with the corresponding adjustment screws 30 and 30' on the valve housing side, the rotary valve 2
When the valve openings of 4 and 24' become smaller and the flow rates supplied to the corresponding liquid flow guiders become smaller, and when the right control cylinder 26 contracts and the valve opening of the corresponding rotary valve 24 becomes larger, When the flow rate supplied to the left liquid flow guider 8 increases significantly, and conversely, the left control cylinder 26' contracts to increase the valve opening of the corresponding rotary valve, the flow rate to the right liquid flow guider 8' increases.
The supply flow rate to is significantly increased.

Electromagnetic directional control valves 31 and 31' for telescopically controlling both control cylinders 26 and 26' are connected in parallel to the compressed air source 32, and when one of the detectors 6 and 6' issues a signal, the corresponding directional control valves 31 and 31' are connected in parallel to the compressed air source 32. Valve 6F or 31' is switched from the normal position shown to the retracted position of the control cylinder. Note that E and E' are exhaust boats for each directional switching valve, and 66 is a power source for signal generation.

Therefore, the right directional valve 61. The control cylinder 26, the rotary valve 24 forms a flow control device 9 for the left-hand liquid flow guide 8, and the left-hand directional valve 61, the control cylinder 2
6', rotary valve 24' forms a flow control device 9' for the right-hand liquid flow guider 8'.

Therefore, when one of the detectors 6, for example, closes as shown by the dashed line in FIG. The feed flow rate is significantly increased to achieve the aforementioned effect. That is, the second
In the figure, the width of the cloth ejecting device is reduced to the vertical dimension for convenience of separate drawings, but the pressing force exerted on the cloth 5 by the liquid ejected from the screw roller 4 and the nozzle of the liquid flow guider 8.8' The relationship between the vertical distance from the line of action S and the minimum cloth width W is determined by the third
Since the flow rate is as shown in the figure, the liquid flow guider 8 has an increased flow rate.
The pressing force Qa is caused by the resultant force of the force Qa with which the ejected liquid presses the cloth part on the left side of the central longitudinal section 〇-〇 of the cloth delivery device to the left and the weight Qb of the cloth below it. An inclined tension T is created between the left half cloth portion and the cloth portion passing through the screw roller 4 on the right side of the central longitudinal section 0-0.
This creates a region M in which the cloth is distributed, and a tensile force to the left acts on approximately the right half of the cloth passing through the screw roller, causing it to slide to the left. Note that when the cloth width is narrow, the inclination angle θ of the region M with respect to the line of pressing force action S increases compared to when the cloth width is large, as shown by the chain line U in the same figure. It is preferable to increase the pressing force Qa or the inclined tension T by decreasing the nozzle mounting pitch.

In the present invention, by changing the mounting angle positions of a pair of liquid flow guiders facing each other, an overlapping portion is provided in the center between the two liquid flow guiders as shown in FIG. When the pair of U-shaped liquid flow guiders 34 and 34' are fixed together so that their nozzle axes are located on the same plane, the center part of the cloth 5 that passes through them is a part where no pressing force is applied by the liquid ejected from the nozzles. This is because when the fabric width is narrow, the fabric on the screw roller cannot be returned to the vicinity of the center position, and even when the fabric width is wide, the fabric on the screw roller is wrinkled.

〔Effect of the invention〕

In the present invention, since the planes including the nozzle axes of the pair of left and right liquid flow guiders intersect on the cloth, when the cloth passing through the liquid flow guiders is near the center position, the liquid ejected from the nozzles is applied to the cloth. By applying equal pressure to the left and right over almost the entire width, it is possible to not only prevent the cloth from shifting to one side, but also to spread the cloth substantially from side to side, so that the threads of the cloth can be tightened at the beginning of contact with the screw roller. In addition, when the cloth that has passed through the screw roller is biased to one side, the amount of liquid ejected from the nozzle to the opposite side is increased to spread the cloth on the screw roller. Since the fabric is configured to be pulled back near the center position, it is possible to stably supply the corrugated fabric to the vicinity of the center of the mantle without worrying about wrinkles in the fabric, regardless of how wide or narrow the fabric is.

[Brief explanation of drawings]

Fig. 1 is a longitudinal side view of one embodiment of the present invention, Fig. 2 is a sectional view taken along line XX in Fig. 1, Fig. 3 is an explanatory diagram of the inclined tension generated in the cloth, and Fig. 4 is the circuit of the flow rate control device. 5 is a plan view of the left liquid flow guider, FIG. 6 is an enlarged view of the first fixed portion, and FIG. 7 is an explanatory view. 1... Continuous processing tank, 2, 6... Rubber roller, 4...
・Screw roller, 5... Cloth, 6, 6'... Detector, 7° 7'... Nozzle, 8, 8'... Liquid flow guider, 9, 9'... Flow rate control device . The first flash ■ The first glue? Must

Claims (1)

[Claims] 1 Continuous processing tank where the fabric is bent into a wave shape and transported sequentially (
The cloth outlet side of 1) and the mangle (2,
and 3), a horizontal screw roller (4) provided with left and right threads for the left and right halves through which the cloth passes, is driven and rotated in the direction in which the cloth is spread. , detectors (6, 6') are provided on both sides of the cloth (5) between the screw roller and the mangle, and each of the detectors (6, 6') generates a signal when the cloth is shifted to the side from the center position. A group of nozzles arranged symmetrically in the front and back regarding the cloth introduced into
a pair of horizontal liquid flow guiders (8, 7') respectively;
8') to a plane (A) containing the nozzle axis of each liquid flow guider.
, B) They are arranged so that they intersect on the cloth, so that the liquid ejected from the nozzle of one liquid flow guider blows the cloth part on the left side of the central longitudinal section (0-0) of the cloth guider to the left, and the other side. The mounting angle of the nozzle on each liquid flow guider is set so that the liquid ejected from the nozzle of the liquid flow guider presses the fabric portion on the right side of the center longitudinal section to the right, and the detectors on both sides of the fabric both receive a signal. When the sensor does not emit a signal, the pressurized liquid is supplied almost evenly to the pair of liquid flow guiders at a flow rate that is sufficient to spread the cloth, and when the detector on either the left or right side of the cloth emits a signal, the detector on the opposite side A flow rate control device (9
, 9').