JPH0634394Y2 - Gluing device for warp gluing machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a gluing device of a warp gluing machine, and more specifically, a glue liquid level in a size box for gluing a large number of aligned yarns arranged in a plane. By carefully changing and adjusting the speed when the warp sizing machine is operating at high speed and when the operation speed is low such as when stopped or operating at low speed. It suppresses the decrease in tension and strength of the wet yarn that is glued when the warp is lowered, and it can prevent the yarn path disorder and yarn breakage that occur when the warp glue gluing machine is restarted, when operating at low speed, or when dividing the sheet before the drying process. The present invention relates to a sizing device for a warp sizing machine that can prevent an excessive amount of sizing from adhering to the aligned yarns when the warp sizing machine is stopped or operates at low speed.

[Conventional technology and technical problem to be solved]

As is well known, in the sizing device of the warp sizing machine, a large number of aligned yarns arranged in a plane are immersed in the sizing liquid of the size box by the immersion roller, and the hydrated yarn is sized with the immersion roller. By squeezing with a roller, the air inside the yarn is replaced with a sizing liquid, and then the yarn is squeezed again by a sizing roller and a squeezing roller so that a wet adhesive yarn having a predetermined amount of glue is obtained.

However, in the conventional sizing device, the sizing liquid in the size box is always maintained at a constant level above the lowermost part of the immersion roller. When the warp sizing machine is switched from the normal high-speed operation state to the stop or low-speed operation state, the immersion time of the aligned yarn in the sizing liquid becomes extremely longer than that during high-speed operation, and the yarn is wetted by the tension applied to the yarn. The yarn stretches greatly, and the tension and strength of the yarn tend to decrease extremely at that portion.

Therefore, in such a sizing device, when the warp sizing machine is restarted or the low speed operation is performed, the yarn paths of the wet yarns are disturbed and the yarns are bonded to each other, or the warp sizing machine is operated. However, there is a problem that the wet yarn is broken at the portion where the strength is reduced at the time of restarting or when the sheet is divided before the drying treatment.
In particular, when the tension decreases, the yarn path of the front aligned yarn that comes into contact with the outer peripheral surface of the immersion roller is likely to be disturbed, and the yarn may enter the immersion roller in such a state at restart or low speed operation. Become. Further, when the warp sizing machine is stopped or is operated at a low speed and the immersion time of the aligned yarn into the sizing liquid becomes long, the sizing liquid penetrates deeply into the inside of the yarn, so that the sizing liquid is sufficiently absorbed by the immersion roller and the sizing roller. There was also a problem that the yarn could not be squeezed out and the amount of glue adhered at that portion decreased, resulting in a decrease in yarn strength.

The present invention has been made in view of the above problems in the conventional sizing device, and the size of the sizing liquid in the size box for sizing a large number of aligned yarns arranged in a plane can be controlled by the high speed of the warp sizing machine. Skillfully change and adjust during operation and when the operating speed decreases, such as when stopping or operating at low speed, to suppress the tension decrease and strength reduction of the wet yarn glued when the warp sizing machine is stopped or operating at low speed, It can prevent yarn path disorder and yarn breakage that occur when the warp glue gluing machine is restarted, at low speed operation, or when the sheet is divided before drying processing, and also prevents excessive glue adhesion when the warp gluing machine is stopped or at low speed operation. It is a technical object to provide a sizing device of a warp sizing machine that can be used.

[Means adopted for solving the problem]

Means adopted by the present invention to solve the above technical problems will be described below with reference to the accompanying drawings.

That is, the present invention is based on a technical premise of a warp sizing machine that dips a large number of aligned yarns W arranged in a plane in a sizing liquid in a size box S by an immersion roller I to sizing them. By constructing at least one side wall 1 of S by a movable weir wall 12 whose wall height can be changed and adjusted by the operation of the driving means 2, by raising the wall height of the movable weir wall 12 during high speed operation of the warp sizing machine. The height of the movable weir wall 12 can be adjusted so that the liquid level is maintained at a level higher than that of the lowermost part of the roller I, and when the operating speed is lowered, the liquid level is lowered to a height matching the speed. The above technical problems have been solved by adopting the above means.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings.

In FIG. 1 and FIG. 2, a large number of aligned yarns W arranged in a sheet shape are immersed in a size liquid of a size box S by an immersion roller I via a tension roller T and a guide roller G, and the immersion After squeezing at the nip portion N ₁ between the roller I and the sizing roller S ₁ to replace the air inside the yarn with the sizing liquid, it is squeezed again at the nip portion N ₂ between the sanding roller S ₁ and the squeezing roller S _2. . The size box S is supplied with the glue liquid in the cavity box C in an overflow state by driving a pump P of a glue liquid supply unit A, which will be described later, and the overflowed glue liquid is passed through the ring channel B to the box C. Return to.

The size liquid supply path A has a size liquid to the outer peripheral surface of the squeezing roller S ₂ the size liquid in the size box S on the downstream side of the pump P in the first supply path A ₁ and immersion roller I side supply Note It has the 2nd supply path A ₂ which comes out. Then, at the time of high-speed operation of the warp sizing machine, the valve V of the second supply path A ₂ is closed to close the supply path A ₂ and supply the size liquid to the size box S via the first supply path A _1. To do. Further, when the warp sizing machine is stopped or operated at a low speed, the sizing liquid is supplied to the size box S through the first supply path A _{1 and} the valve V of the second supply path A ₂ is provided to prevent the wet thread from drying. nip portion with the opening operation the supply passage each roller via an _{a 2 I · S 1 · S} 2 N 1 and N ₂
Pour the sizing liquid onto the wet threads in between.

The front wall 1 constituting one side wall of the size box S is fixed by a fixed weir wall 11 formed at a height lower than the lowermost part of the immersion roller I, and is pivotally attached to the upper part of the fixed weir wall 11 by a support shaft 13. It is made of a movable weir wall 12 which is rotatable outwardly. When the piston rod 21 of the fluid pressure cylinder 2 provided below the size box S extends, the movable weir wall 12 swings clockwise in the clockwise direction of the connecting rod L fixed to the lower end of the weir wall 12. The movable weir wall 12 stands up with the support shaft 13 as a fulcrum to adjust the wall height level above the lowermost part of the immersion roller I. When the rod 21 of the cylinder 2 is shortened, the connecting rod L is rotated in the counterclockwise direction. Movable weir wall by rocking to
12 tilts around the support shaft 13 as a fulcrum to adjust the wall height level below the lowermost part of the immersion roller I.

Then, the gluing to the alignment system W by the apparatus of this embodiment is
During high-speed operation of the warp gluing machine, the piston rod 21 of the fluid pressure cylinder 2 is extended to erect the movable weir wall 12 so that the level of the sizing liquid surface is higher than the lowermost portion of the immersion roller I, generally. Is a higher amount than the point where the immersion roller I and the aligned yarn W start to contact each other so that the glue liquid adheres to the aligned yarn without being full, and an appropriate amount of the glue liquid is applied to the yarn immersed in the glue liquid. Are attached (see FIG. 1). On the other hand, when the warp sizing machine is stopped or operating at a low speed, the movable rod wall 12 is tilted by shortening the piston rod 21 of the fluid pressure cylinder 2 so that the level of the sizing liquid surface is fixed by the fixed weir wall 11 to the maximum of the immersion roller I. It is maintained below the bottom. From this, the appropriate amount of the glue liquid is attached to the lowermost yarn of the immersion roller I only on the peripheral surface of the sizing roller S ₁ whose lowermost portion is immersed in the glue liquid (see FIG. 2). The wet yarn glued by the sizing roller S ₁ is always in contact with the peripheral surface of the sizing roller S ₁ , and the nip portion N _{1 between the} immersion roller I and the squeezing roller S ₂ with respect to the roller S _{1 is} Since it is clamped at two points of N ₂ , there is little disturbance in the yarn path. In addition, the alignment yarn W of this portion
There is no problem because the amount of expansion of the immersion roller I is sufficiently small compared to the input portion. In this embodiment, the aligned yarn W
Does not come into contact with the glue liquid until it reaches the nip portion N ₁ of the sizing roller S ₁ from the input portion of the immersion roller I to the lower portion of the roller I, so that the tension and the strength are not reduced. . When the warp sizing machine is stopped or operating at a low speed, the sizing solution is poured into the sizing thread between the nip portions N ₁ and N ₂ via the second supply path A ₂ described above. Although so as to prevent drying of the yarn, since this size liquid is circulating in the size box S flows down from the axial direction end sides of the rollers I · S ₁ · S _2, alignment of the bottom of the immersion roller I It does not adhere to the thread W.

The device of this embodiment is constructed as described above,
The present invention is by no means limited to the above-mentioned embodiment, and various modifications can be made within the scope of the "claim for utility model registration". For example, as shown in FIG.
When the sizing box S ₁ is arranged such that the lowermost part of the sizing roller S ₁ is located above the lowermost part of the immersion roller I, the size of the sizing roller is adjusted only when the warp sizing machine is stopped or at a low speed. The second supply path A ₂ of the glue solution supply path A is maintained at a position lower than the lowermost portion of the roller I
Alternatively, an appropriate amount of the sizing liquid may be glued to the aligned yarn W only by the mere use. Further, in the present embodiment, the level of the glue liquid surface is suddenly changed to be lower than the lowermost portion of the immersion roller I at the time of stop or low speed operation, that is, the amount of glue adhered to the alignment yarn W on the immersion roller I is set to 0. ing. However, the level of the sizing liquid surface may be set to be equal to or slightly higher than the lowermost part of the immersion roller I depending on the type of the aligned yarn. Further, the level of the glue liquid surface may be gradually decreased in accordance with the decrease in speed. An example thereof is shown in FIG. Reference numeral 30 is a drive means for rotating the movable weir wall 12. The driving means 30 is composed of a pulse motor 31, a control device 32 and an A / D converter 33. A control device 32 is connected to the pulse motor 31. An A / D converter 33 for inputting a speed command signal to a drive motor of a warp sizing machine (not shown) and converting it into a digital signal is input to the control device 32.
The output part of is connected. The operation of this embodiment will be described. During high-speed operation, the movable weir wall 12 is adjusted by the control device 32 via the pulse motor 31 to a wall height corresponding to the speed,
The glue surface is maintained at a predetermined height. Then, when the speed is switched to the low speed operation and the speed decreases, a speed signal proportional to the operation speed is output to the A / D converter 33, and as a result, the control device 32 moves in proportion to the output value of the signal. The level of the glue liquid surface is lowered by tilting the weir wall 12. When the operation is stopped, the movable weir wall 12 is tilted most, and the level of the glue surface is set to a position equal to or lower than the lowermost part of the immersion roller I.

In any of the above-described embodiments, the movable weir wall 12 is rotatably supported by the fixed weir wall 11 so that the wall height of the movable weir wall 12 is fixed.
Although the height is adjusted to exceed the lower end of the immersion roller I from the upper surface of 11, the movable weir wall 12 is slidably attached to the fixed weir wall 11 in the vertical direction, or the movable weir wall 12 is
May be attached to the upper part of the fixed weir wall 11 so as to reciprocate in the width direction of the size box S, and the wall height of the movable weir wall 12 may be adjusted as described above by the expansion and contraction operation of the fluid pressure cylinder 2. Also,
The movable weir wall 12 is rotatably supported by the fixed weir wall 11,
Although the wall height is changed and adjusted by rotating 12, the movable weir wall 12 is not limited to such a configuration, for example, the movable weir wall 12 is formed in a bellows shape, and the movable weir wall 12 is vertically moved by an appropriate driving means. Drive,
The fixed weir wall 11 can be omitted by changing the wall height.
Further, in the above embodiment, the movable weir wall 12 is formed only on _{one side} of the sizing box S ₁ , but the movable weir wall 12 and the return path B are also formed on the other side of the sizing box S _1. Adjusting the liquid level and the like naturally belong to the technical scope of the present invention.

[Effect of device]

As described above with reference to the embodiments, according to the present invention, at least one side wall of the size box is constituted by a movable weir wall provided so that the wall height can be changed and adjusted, and the warp sizing machine is stopped or operated at low speed. When the speed decreases, the movable weir wall is lowered and the size of the sizing liquid is maintained at a level lower than that of the sizing liquid during high-speed operation. The decrease in tension and strength can be suppressed to prevent the yarn path disorder and yarn breakage that occur when the warp sizing machine is restarted or operated at low speed or when the sheet is divided before the drying process. It is also possible to prevent an excessive amount of glue from being attached to the aligned yarn during operation.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an operating state of the present embodiment device when the warp sizing machine is operating at high speed, and FIG. 2 is an explanatory view showing an operating state of the present embodiment device when the warp sizing machine is stopped or operating at a low speed. FIGS. 3, 3 and 4 are explanatory views showing another embodiment of the apparatus. S ... size box. W ... Aligned yarn. I ... Immersion roller. 1 ... Front wall, 11 ... Fixed weir wall, 12 ... Movable weir wall. 2 ... Fluid pressure cylinder.

Claims (1)

[Scope of utility model registration request] 1. A warp sizing machine for dipping and sizing a large number of aligned yarns W arranged in a plane in a sizing liquid in a size box S by an immersion roller I, and at least one side wall of the size box S. 1 is composed of a movable dam wall 12 whose wall height can be changed and adjusted by the operation of the driving means 2, and when the warp sizing machine is operating at high speed, the operation of the driving means 2 increases the wall height of the movable dam wall 12. As a result, the level of the glue liquid is maintained at a level higher than that of the lowermost portion of the roller I, and when the operating speed decreases, the wall height of the movable weir wall 12 is adjusted so as to lower the glue liquid surface to a height corresponding to the speed. A gluing device characterized by being adjustable.