JPH0411065A - Method for extending fabric and mechanism for extending fabric in device for turning over tubular knit or woven fabric of continuous length - Google Patents

Abstract

PURPOSE:To enable continuation of turning over and fabric extending steps for a tubular knit or woven fabric of continuous length by extending the fabric through a fabric extending hood provided in the top of a double pipe while turning over the tubular knit or woven fabric covering the periphery of the aforementioned double pipe utilizing compressed air. CONSTITUTION:Compressed air from a blower 13 is passed through an air supply pipe 30 and fed to an air supply passage 41 of a double pipe 40 composed of an outer pipe 42 and an inner pipe 43 and the outer peripheral surface of the outer pipe 42 is successively covered with a tubular knit or woven fabric 70 of continuous length utilizing a wind force flowing through an umbrella-like member 44 and a wind direction reversing flow passage 45 passing from the back end of the outer periphery of the aforementioned outer pipe 42 to the front and filled. The back end of the above-mentioned knit or woven fabric 70 is then tied up and inserted into the inner pipe 43 and the compressed air of the aforementioned blower 13 is subsequently fed through an air ventilation pipe 29. The aforementioned knit or woven fabric 70 is then conveyed in the inner pipe 43 while being turned over, subsequently extended through a fabric extending hood 60, having the cross section tapered to the downstream side and provided at the tip thereof and then taken out with a pair of rollers 48 and 49.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spreading method and a spreading mechanism in a turning device for long tubular knitted fabrics.

[Prior Art] Generally, when bleaching, dyeing, or raising this kind of material, it is usually done on the back side of the fabric. Therefore,
For example, the outer circumference is 0.5 to 2.5 m.

It is necessary to quickly turn over the stockinette fabric, which is knitted into a long cylindrical shape and has a length of up to 100 TrL.

Until now, the present applicant has proposed a turning device for turning long cylindrical knitted fabrics, and this has been published (Utility Model Publication No. 51-30480).

In this structure, a long tubular knitted fabric that has been turned inside out is pulled out! 11 pairs of rollers and the long cylindrical shape 1Gii on the rollers.
ii.Equipped with a generally horizontally arranged double pipe that sends out items and a pressurized air supply mechanism that supplies pressurized air to the double pipe,
The above-mentioned double pipe has an outer pipe that forms the outer circumference, an inner pipe that defines an air passage between the inner circumferential surface of the outer pipe, and a base end of the outer pipe that is fixed to the base end of the inner pipe. an annular umbrella-shaped member that defines a flow path for reversing the wind direction that communicates with the air blowing path between the outer circumferential surface of the outer pipe; and a supply source that selectively supplies pressurized air to the pressurized air outlet and the air blowing path.

[Problems to be Solved by the Invention] However, with this structure, the fabric pulled out from the roller comes out in the form of a rope, so when performing the next process, such as a jet dyeing process, it is necessary to The fabric had to be stretched by hand and wrinkles removed.

However, stretching more than 100 meters of fabric by hand required a great deal of effort, and was a time-consuming and labor-intensive process.

The present invention aims to solve the above problems.

Means for Solving 1 Problem] In order to solve the above problem, a first aspect of the present invention includes a pair of rollers that pull out a long tubular IEA fabric that has been turned inside out, and a pair of rollers that pull out the long tubular IEA fabric that has been turned inside out. The double pipe is provided with a generally horizontally arranged double pipe that sends out shaped knitted fabrics, and a pressurized air supply mechanism that supplies pressurized air to the double pipe. , an inner pipe that defines an air passage between the inner circumferential surface of the outer pipe, and an inner pipe that is fixed to the base end of the inner pipe and communicates with the air passage between the outer pipe base end and the outer circumferential surface of the outer pipe. The pressurized air supply mechanism includes an annular umbrella-shaped member that partitions a flow path for reversing the wind direction, and a pressurized air outlet that supplies pressurized air for turning over to the proximal opening of the umbrella-shaped member; In the turning device for long tubular knitted fabrics, which is equipped with a pressurized air outlet and a supply source that selectively supplies pressurized air to the air supply path, the air passes through the air supply path and the air direction reversal flow path. A first step of covering the outer periphery of the outer pipe with a long tubular knitted fabric using pressurized air, and then covering the long tubular knitted fabric with pressurized air supplied from the pressurized air outlet into the inner pipe. a second step of feeding the shaped knitted fabric into the inner pipe while turning it inside out;
Next, a third step of pulling out the tip of the long cylindrical knitted fabric sent out from the discharge port of the inner pipe with a pair of rollers, and in the third step, the long cylindrical knitted fabric By pulling out the tip of the cloth through a tapered cloth spreading hood which becomes wider toward the roller side when viewed from above and tapers when viewed from the cross section, the pressurized air for turning over in the second step is used to -F The long short knitted fabric is characterized in that the inner part of the expandable hood is expanded.

Furthermore, in the second aspect of the present invention, the inverted long cylindrical shape f
(i) 11 pairs of rollers for pulling out the woven fabrics, a double pipe arranged generally horizontally for feeding the long tubular knitted fabric to the rollers, and a pressurizer for supplying pressurized air to the double pipe. an air supply mechanism; the double pipe has an outer pipe forming an outer circumferential portion; and an inner pipe defining an air passage between an inner circumferential surface of the outer pipe;
an annular umbrella-shaped member fixed to the base end of the inner pipe and partitioning and covering a flow path for reversing the wind direction communicating with the air blowing path between the base end of the outer pipe and the outer circumferential surface of the outer pipe; The air supply mechanism has a pressurized air outlet that supplies pressurized air for turning over to the base end opening of the umbrella-shaped member, and selectively supplies pressurized air to the pressurized air outlet and the air blowing path. In the turning device for long tubular knitted fabrics, which is equipped with a supply source, the tip of the double tube is provided with a tapered shape whose width increases toward the roller side when viewed in plan and tapers when viewed in cross section. It is characterized by the provision of an expanding hood.

[Function] By employing the spreader hood, the long tubular knitted fabric is stretched out from the roller in a state where it is spread in the width direction.

[Example 1 Figure 1 is a partially cutaway side view of the present invention, Figure 2 is a view in the direction of the ■ arrow in Figure 1, and Figure 3 is a view in the direction of the ■ arrow in Figure 1. The right side and the direction corresponding to each figure are tentatively set as the front.

1-3, a turning device 10 according to the invention
A pressurized air supply mechanism 12 is housed in the U-frame 11 . The pressurized air supply mechanism 12 includes a blower 13 (supply source). The blower 13 is connected to a blower motor 15 by a V-belt 14.

The intake port 13a (FIG. 2) of the blower 13 can be opened and closed by a shutter mechanism 16. The shutter mechanism 16 includes a pair of grooved guide plates 1 facing left and right and extending vertically.
7.18. In the cavity of each guide plate 17, 18, there is a 1 that opens and closes the intake port 13a (FIG. 2) of the blower 13.
Both ends of the 7il closing plate 19 are slidably fitted together. A crankshaft 20 is connected to the opening/closing plate 19, and this crank ll1120 is driven up and down by the opening/closing plate control motor 21, so that the opening/closing plate 19 is connected to the intake port 1.
Open and close 3a. The motor 21 is controlled by a switch 23 fixed to the rotary bent pipe 22.

A first 1-port pipe 25 curved at a generally right angle is connected to the discharge port 24 (FIG. 1) of the blower 13, and a hose 26 is connected to the first elbow pipe 25. The hose 26 has a second elbow bent in the same direction as the first elbow pipe 25.
It is connected to a switching valve mechanism 28 (FIG. 1) via an elbow pipe 27.

The switching valve mechanism 28 connects the second 1-port pipe 27 to a first blow pipe 29 that extends rearward and a second blow pipe 3 that extends upward.
This is for selectively connecting to the second elbow pipe 2.
7 is connected to the switching plate 31, a crankshaft 32 that drives the switching plate 31, and a support shaft 33 that supports the crankshaft 32. Support @33 is a pair of throat low block bearings 3
4 (only one is shown in FIG. 1), and by rotating this support shaft 33, the crankshaft 32 slides back and forth to switch the elbow pipe 27. There is.

λ (A pair of square pipes 36 extend rearward from the angle 35 forming the lower part of the frame 11. A wire 37 whose both ends are fixed to the lower end of the support shaft 33 is inserted between the square pipes 36. extends, and its intermediate portion is connected via a pulley 38 to the rotating bent pipe 22, which is rotatably supported by the rear end of the first blower pipe 29. While the discharge port 39 (FIG. 1) of the curved pipe 22 faces the rear end of the double pipe 4o, which will be described later, the wire 37 is connected to the rotating curved pipe 22.
The discharge port 24 of the blower 13 is connected to the first blower pipe 29 via the first elbow pipe 25, the hose 26, and the second one-port pipe 27.

On the other hand, the rotating bent pipe 22 rotates in the direction of arrow A in FIG.
When the crankshaft 32 is moved to the position indicated by the dotted chain line 22a, the wire 37 is linked to the rotational movement and the support shaft 33 is also rotated, and as a result, the crankshaft 32 is pulled forward from the state shown in FIG. The pipe 27 is connected to the second blow pipe 30. The second blow pipe 30 is connected to a blow passage 41 of a double pipe 40, which will be described next.

The double pipe 40 is a cylindrical member that extends rearward from the base frame 11, and includes an outer pipe 42 and an outer pipe 42 constituting the outer periphery of the double pipe 40.
The inner pipe 43 is arranged concentrically on the inner periphery of the inner pipe 43. An air passage 41 communicating with the second air pipe 30 mentioned above is defined between both pipes 42,43.

An annular umbrella-shaped member 44 is fixed to the 13 end of the inner pipe 43 by, for example, welding. As shown in FIG. 1, the umbrella-shaped member 44 bends forward while covering the base end and outer circumferential surface of the outer pipe 42, thereby creating a ventilation path between the base end and the outer circumferential surface of the outer pipe 42. A flow path 45 for reversing the wind direction, which communicates with the air flow path 41, is defined. And the above-mentioned rotary bent pipe discharge port 3
9 faces the inner peripheral portion of this umbrella-shaped member 44. A plurality of fixing plates 46 connecting the outer pipe 42 and the inner pipe 43 are radially attached to the outer part of the outer pipe 42 at the folded exit end of the umbrella-shaped member 44 . The fixing plate 46 is fixed to the outer circumference of the outer pipe 42 by welding, and is used to fix the outer pipe 42 and the inner pipe 43 while making the distance between the fixing plate 46 and the inner pipe 43 equal.

When the above-mentioned switching mechanism 28 connects the second elbow pipe 27 with the first feed lit pipe 29, the pressurized air of the blower 13 flows from the rotary bent pipe 22 to the inner circumference of the umbrella-shaped member 44. When the switching v1 side 28 communicates the second elbow pipe 27 with the second blow pipe 30, the air is supplied to the umbrella-shaped part 044 via the blow passage 41. The water is supplied to a flow path 45 for reverse rotation in one direction, which is divided into two sections. As shown in the enlarged view in FIG. 1, in the vicinity of the front end of the double pipe 40,
A vertical wall 47 is provided to close and cover the space between the outer pipe 42 and the inner pipe 43 to prevent air in the air passage 41 from leaking to the outside.

A pair of vertically opposed rows 548, 49 are arranged on the front extension of the double pipe 40. The rollers 48, 49 are set to have a wide width (FIG. 3), and a folding plate 50 for the knitted fabric 70 is arranged in front of the rollers 48, 49. As shown in FIG. 1, a support shaft 51 of a roller 49 disposed on the lower side is connected to a roller drive motor 5 via a pulley 52 and a V-belt 53.
4, and by rotating the roller 49 with this motor 54, the elongated tubular knitted fabric 70 is pulled out. There is a completely different pulley 5 on the support N151.
5 is fixed, and the pulley 55 is connected to a wheel 57 having a larger diameter than the pulley 55 via a V-belt 56. A crankshaft 58 for rotationally driving the folding plate 50 is connected to the wheel 57. Therefore, when the motor 54 rotates and the roller 49 rotates, the rotational force is transferred to the wheel 57,
It is also transmitted to the folding plate 50 via the crankshaft 58, and the roller 49 and the folding plate 50 are configured to rotate up and down in conjunction with each other.

In the above configuration, the tip portion 59 of the inner pipe 43
A cloth spreading hood 60 is fixed to the (discharge port). The longitudinal section of the spreader hood 60 is shown in FIG.
It is formed in a tapered shape that becomes thinner as it goes toward the 8.49 side. At the same time, the planar shape of the cloth spreading hood 60 is set such that the width increases toward the rollers 48 and 49, as shown in FIG. Therefore, as will be explained next, when the long tubular knitted fabric 70 passes through the inside of the inner pipe 43 and is discharged from the tip of the double pipe 40, the pressurized air of the rotary bent pipe 22 causes the knitted fabric to be knitted into a tubular shape. The fabric 70 is unrolled within the spreader hood 60.

Next, I will explain Mobo. In the above-mentioned configuration, first, in order to cover the outer circumference of the outer pipe 42 with the knitted fabric 70 as shown in FIG. It is moved to the position indicated by the chain line 22a. As a result, the switching valve t[28 is operated via the wire 737, and the second elbow pipe 27 is connected to the second ventilation pipe 30. Next, with the tip of the knitted fabric 70 covered with the outer pipe 42 in advance, the switch 23 is controlled to drive the opening/closing plate controller 21 on the side 16 of the door blower to open the air inlet 13a of the blower 13. (
2), air is supplied to the blower 13, pressurized inside the blower 13, and discharged from the discharge port 24. This pressurized air is then supplied to the air passage 41 of the double pipe 40 via the first elbow pipe 25, the hose 26, the second 1-port pipe 27, and the second air pipe 30, and is further supplied to the air passage 41 of the double pipe 40. The air is discharged forward from the outer circumferential rear end of the outer pipe 42 through a wind direction reversal flow path 45 defined by. The wind force causes the knitted fabric 70 to move forward, and the double pipe 40
The outer pipe 42 is sequentially and continuously covered with the outer circumferential surface of the outer pipe 42.

Next, when the knitted fabrics 70 are completely covered, the rear ends of the knitted fabrics 70 are bundled and inserted into the inner pipe 43 of the double pipe 40.After the knitted fabrics 70 are completely covered, the rear ends of the knitted fabrics 70 are bundled and inserted into the inner pipe 43 of the double pipe 40. 4
3, the switch 23 may be turned off once to close the shutter mechanism 16, or the air may be kept blowing. Back to. As a result, the switching valve mechanism 28 is interlocked in the opposite direction to the above via the wire 37, and the second elbow pipe 27
is connected to the first ventilation pipe 29. As a result, blower 13
The pressurized air is supplied from the first ffl pipe 29 to the rotary bent pipe 22, and further supplied from the discharge port 39 into the inner pipe 43. Therefore, the end portion of the 512i product m70 moves forward within the inner pipe 43 due to the wind force. As a result, the knitted fabric 70μ is fed into the inner pipe 43 while being turned over through the outer surface of the umbrella-shaped member 44 fixed to the rear end of the inner pipe 43, and its tip is the tip of the double pipe 40. It is pulled out by a pair of upper and lower rollers 48 and 49 that rotate at the section.

Here, in the present invention, at the tip of the second fn tube 40,
Since the cloth spreading hood 60 is provided with a tapered shape that becomes wider toward the rollers 48 and 49 when seen in plan and tapers in cross section, when the end of the knitted fabric 70 reaches the inside of the cloth spreading hood 60, The end portions are expanded in the width direction by the pressurized air supplied into the inner pipe 43, and are pulled out into a spread shape. The expanded knitted fabric 70 is then folded up by a feed plate that interlocks with the rollers 48 and 49, and is placed in v4 layers on the floor. Note that in embodying the above structure, for example, a well-known inverter is connected to an operation switch (not shown) of the motor 15 to change the rotation speed of the motor 15 to a desired value, and the knitted fabric 70 is changed to a roller 48, 49. If the wind pressure 11 of the pressurized air that is supplied after being bitten can be changed by an operation switch, it is possible to prevent the spread FAi objects 70 from clogging at [Coke 48.49]. As a result, regardless of whether the fabric of the knitted fabric 70 is thick, wide, and heavy, or thin and light, the balloon/air pressure of the pressurized air from the blower 13 can be adjusted to the optimum value using the above operation switch. By making this change, the knitted fabric 70 can be fed at a speed corresponding to the speed at which the bow is stretched by the rollers 48, 49. If a light fabric is fed in as well as a thick fabric, the fabric may overlap and wrinkle as it is pulled out by the rollers 48,49.

[Effects of the Invention] As explained above, according to the present invention, a tapered spreading hood is used at the tip of the double tube, the width of which increases as it approaches the roller side when viewed in plan, and tapers when viewed in cross section. Therefore, the long tubular knitted fabrics are folded in the unfolded state after being turned over. Therefore, simply by employing a cloth spreading hood, the cloth spreading process and the turning process can be performed continuously in the same device, so that the cloth spreading process can be omitted and handling becomes easier. Moreover, since the present invention only requires the use of a cloth-spreading hood, it can be carried out by making slight improvements to the conventional apparatus, which is advantageous in terms of production of the apparatus.

[Brief explanation of drawings]

1 is a partially cutaway side view of the present invention, FIG. 2 is a view taken in the direction of the m arrow in FIG. 1, and FIG. 3 is a view taken in the direction of the m arrow in FIG. 10...
・Flip device, 12... Pressurized air supply source structure, 13...
・Blower (pressurized air supply source), 40...double pipe, 41
...Flow path for reversing wind direction, 42...Outer pipe, 43...
- Inner pipe, 44... Umbrella-shaped member, 60... Spreading hood, 70... Long tubular knitted fabrics

Claims (2)

[Claims] (1) A pair of rollers that pull out the long tubular knitted fabric that has been turned inside out, a double tube arranged approximately horizontally that feeds the long tubular knitted fabric to the rollers, and a double tube that is attached to the double tube. A pressurized air supply mechanism that supplies pressurized air, and the double pipe has an outer pipe that forms an outer circumference, an inner pipe that defines an air passage between the inner circumferential surface of the outer pipe, and an inner pipe. and an annular umbrella-shaped member fixed to the base end of the outer pipe to define a flow path for reversing the wind direction communicating with the air blowing path between the base end of the outer pipe and the outer circumferential surface of the outer pipe, the pressurized air supply The mechanism includes a pressurized air outlet that supplies pressurized air for turning over to the base end opening of the umbrella-shaped member;
In the turning device for long tubular knitted fabrics, which is equipped with a pressurized air outlet and a supply source that selectively supplies pressurized air to the air passage, the air passes through the air passage and the flow passage for reversing the wind direction. A first step of covering the outer periphery of the outer pipe with the elongated tubular knitted fabric using pressurized air, and then covering the elongated tubular fabric with pressurized air supplied into the inner pipe from the pressurized air outlet. a second step of feeding the shaped knitted fabric into the inner pipe while turning it inside out, and a second step of pulling out the tip of the long tubular knitted fabric sent out from the outlet of the inner pipe with a pair of rollers. In the third step, the tip of the long cylindrical knitted fabric is formed into a tapered expanding hood whose width increases as it approaches the roller side when viewed in plan and tapers when viewed in cross section. The elongated cylindrical fabric is characterized in that the inside part of the elongated cylindrical hood of the elongated cylindrical knitted fabric is expanded by the pressurized air for turning in the second step by pulling it out through the fabric. A method for spreading cloth in a turning device for knitted fabrics. (2) A pair of rollers that pull out the long tubular knitted fabric that has been turned inside out, a double tube arranged approximately horizontally that feeds the long tubular knitted fabric to the rollers, and a double tube that is attached to the double tube. A pressurized air supply mechanism that supplies pressurized air, and the double pipe includes an outer pipe that constitutes an outer peripheral portion, an inner pipe that partitions an air passage between the inner peripheral surface of the outer pipe, and an inner pipe. and an annular umbrella-shaped member fixed to the base end of the outer pipe to define a flow path for reversing the wind direction communicating with the air blowing path between the base end of the outer pipe and the outer circumferential surface of the outer pipe, the pressurized air supply The mechanism includes a pressurized air outlet that supplies pressurized air for turning over to the base end opening of the umbrella-shaped member;
In the turning device for long tubular knitted fabrics, which is equipped with a pressurized air outlet and a supply source that selectively supplies pressurized air to the air passage, a A cloth spreading mechanism characterized by being provided with a tapered cloth spreading hood whose width increases toward the roller side and tapers in cross section.