JPH08127957A - Control roll for centering cloth guider - Google Patents

Abstract

PURPOSE: To provide a control roll of a centering cloth guider, capable of preventing fuzzing of fabric and excellent in durability and guiding force without wrapping yarn wastes and fuzz around the roll. CONSTITUTION: This control roll for a centering cloth guider is obtained by alternately externally fitting dough-nut shaped soft rubber sheets 5, made of a silicone rubber and having a larger outside diameter than that of a roll shaft member 3a and several mm thickness and spacer rings 4, made of vinyl chloride and having a smaller diameter than that of the rubber sheets 5 in a parallel form along surfaces intersecting the center, line of the shaft member 3a between a flange part (a) formed at one end of the roll shaft member 3a comprising a cylindrical shaft member formed of a resin such as bakelite or nylon or a stainless steel material and a screw part (b) formed at the other end, screwing a nut 6 with the screw part (b) and tightening the whole in the control roll of a centering cloth guider.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control roll for a centering cross guider.

[0002]

2. Description of the Related Art There is a centering cross guider provided in the middle of a belt-shaped cloth material transfer path. One of them is the one shown in FIG.
No.) has already been devised and implemented.

In FIG. 1, reference numeral 1 denotes a cylindrical screw roll which is driven to rotate in the direction of arrow f1. The right and left halves of the outer circumference are provided with spiral strips 1a and 1b whose winding directions are opposite to each other. Reference numeral 2 denotes a belt-shaped cloth, which is changed in direction from above to below via a screw roll 1 and is pulled in a horizontal direction. Numerals 3 and 3 denote control rolls which can be abutted obliquely on the peripheral surface of the screw roll 1 with the cloth material 2 interposed therebetween. Brush hairs 3b such as nylon are planted on the peripheral surface of the shaft member 3a. It is rotatable around the central axis 4. At this time, the screw roll 1 is rotated at a peripheral speed greater than the feed speed of the cloth material 2, and the helical strips 1 a and 1 b apply a spreading force to the cloth material 2.

In this guider, when the width center point of the cloth material 2 is shifted to the right during the transfer of the cloth material 2, for example, the control roll 3 is supported by the tips of the spiral strips 1a and 1b of the screw roll 1 in connection with this. The fabric 2 is brought into contact with the left side portion of the fabric 2, whereby the spreading force of the left spiral streak 1 b is increased and the fabric 2 is moved to the left, while the width center point of the fabric 2 is shifted to the left. Then, the control roll 3 on the right side is brought into contact with the right portion of the cloth 2 supported on the screw roll 1, whereby the spreading force of the right spiral strip 1a is increased and the cloth 2 is The cloth material 2 is always moved to the right side, so that the width center point of the cloth material 2 is always kept at a fixed position during the transfer. Assuming that the width of the cloth 2 changes during this operation, the left and right control rolls 3 and 3 move symmetrically following the movement, stop at the optimum position, and operate again in the same manner. .

[0005]

In the control roll 3 of the above guider, the brush hair 3b is attached to the shaft member 3a.
Are liable to be fluffed on the surface of the cloth material 2, lint and fluff are easily attached to the brush hairs 3b and wrapped around, and inferior in durability.

[0006] It is an object of the present invention to provide a control roll of a centering cross guider which can solve such a problem rationally.

[0007]

In order to achieve the above-mentioned object, the present invention provides a roll shaft member having a diameter of several mm in the direction of the center line.
At each interval, a donut-shaped soft rubber plate having an outer diameter larger than that of the same member and formed of silicon or the like and having a thickness of several mm is arranged in parallel along a plane orthogonal to the center line.

Specifically, the roll shaft member has a cylindrical shaft member provided with a flange at one end and a screw portion at the other end, and a number of donut-shaped rubber plates are provided with flanges on the outer periphery of the roll shaft member. It is fitted between the part and the screw part, and the respective gaps are held by a spacer ring having a smaller diameter than that of the rubber plate, and fastened by a nut screwed to the screw part.

[0009]

In the state where the product of the present invention is in contact with the cloth material on the peripheral surface of the screw roll, the peripheral edges of the plurality of donut-shaped soft rubber plates are pressed against the cloth material in a state where the peripheral edge is supported by the tip of the spiral strip. The cloth material of the pressed portion is pressed against the spiral strip of the screw roll, and at the time of pressing, the cloth material of the present invention is rotated by transmitting the transfer force of the cloth material by contact between the cloth material 2 and the rubber plate. , Whereby the spreading force by the spiral strip is increased, and the cloth material is moved in the direction in which the spreading force acts. Since the rubber plate is made of rubber and its periphery is in surface or line contact with the cloth, it is harder to damage the cloth and slips compared to the conventional brush hairs, and it is difficult to slip with the rotating shaft of the screw roll. Since the cloth is rotated around the axis in the specific direction, the cloth acts to guide the cloth in this specific direction, thereby assisting the movement of the cloth by the spreading force of the screw roll. Also, the tip of the rubber plate is slightly indented from the tip of the spiral strip due to the flexibility of the cloth material, and the spiral strip at the point where the peripheral edge of the rubber plate and the tip of the spiral strip overlap. During the rotation, the position of the tip changes momentarily in the axial direction of the screw roll, so that the tip of the spiral strip presses the side surface of the peripheral edge of the rubber plate. Are elastically bent in the lateral direction, so that the movement of the tip end of the spiral strip is allowed without difficulty.

[0010]

1 to 3 relate to an embodiment of the product of the present invention.
FIG. 2 shows a spacer ring, (a) is a front view, (b) is a side view, FIG. 3 shows a rubber plate, (a) is a front view, (b) is a side view, FIG. 4 is an operation explanatory view showing the relation between the rubber plate and the spiral strip of the screw roll.

As shown in the figure, the roll shaft member 3a comprises a cylindrical shaft member having a flange portion a at one end and a screw portion b at the other end. Specifically, the entire roll shaft member 3a is made of bakelite, nylon or the like. Made of a resin material or stainless steel, and has a total length of about 250 mm, and a through hole 1c with a diameter of about 25 mm for inserting a support shaft (not shown) in the central portion.
Is provided.

Reference numeral 4 denotes a spacer ring which is externally fitted between the flange portion a and the screw portion b on the outer periphery of the roll shaft member 3a, is formed of a vinyl chloride material or the like, has a thickness of about 3 to 10 mm, and an outer diameter of about 3 to 10 mm. Is about 60 to 70 mm.

Similar to the spacer ring 4, a donut-shaped rubber plate 5 is fitted on the outer periphery of the roll shaft member 3a between the collar portion a and the screw portion b, and is made of soft rubber such as silicone (an equivalent product is used). It is formed between the spacer rings 4 and has a thickness of about 1.5 to 3 mm in the case of a silicon material, and the outer diameter is at least larger than that of the spacer ring 4. However, it is preferable that the end surface of the peripheral edge portion is not sharpened but has a rounded shape as much as possible. At this time, if the thickness is smaller than 1.5 mm, the guiding force and the durability become insufficient. On the other hand, if the thickness is larger than 3 mm, the bending force due to the force from the side becomes excessive and the cloth 2
Will be damaged. In FIG. 4, the height h from the outer peripheral surface of the spacer ring 4 and the width l of the spacer ring 4 are shown.
Is preferably about 1/2 to 8/3.

Numeral 6 is a nut screwed to the screw portion, which presses the spacer ring 4 and the rubber plate 5 against the flange portion a to fasten the same to the roll shaft member 3a. The nut 6 is preferably provided with a key groove d in the threaded portion b to appropriately prevent the loosening.

The product of the present invention is used in the same manner as the conventional one, and a plurality of rubber plates 5 are pressed against the cloth material supported by the spiral strip on the peripheral surface of the screw roll 1.
The peripheral surface of (1) presses the cloth material, and the contact between the peripheral surface and the cloth material causes the product of the present invention to rotate around a spindle (not shown) inserted in the through hole (c).

As a result, the cloth material is pressed against a portion pressed by the peripheral surface of the rubber plate 5 with a stronger force than the other portion to the tip of the spiral strip of the screw roll, and one of the spiral strips 1a or 1b ( 4) is stronger than that of the other spiral streak 1b or 1a, and the difference in the spreading force is the main force for moving the cloth to the required side. At the same time, the cloth material is guided directly by the peripheral surface of the rubber plate 5 in the circumferential direction of the plate 5, and this guiding force assists the movement of the cloth material due to the difference in the spreading force, and Will be smoothly moved to the required side.

At this time, the peripheral edge of the rubber plate 5 is slightly intruded into the inside f2 from the tip end of the spiral strip 1a as shown in FIG. The position of the tip of the spiral strip 1a at the point where the peripheral edge of the spiral strip 1a overlaps the tip of the spiral strip 1a is displaced momentarily in the axial direction of the screw roll 1 by the rotation of the screw roll 1; The distal end portion repeatedly presses the side of the peripheral edge of the rubber plate 5 as shown by the symbol m. In this case, the elasticity of the rubber plate 5 causes the rubber plate 5 to bend smoothly in the lateral direction, thereby causing the distal end of the spiral strip 1a to be bent. The passage of the part is allowed without difficulty, the cloth 2 is not damaged, and its function is not impaired. The peripheral edge of the rubber plate 5 has a ring shape and is appropriately elastically deformed not only in the lateral direction but also in the radial direction. , And exerts its guiding force effectively, without damaging the surface of the cloth material 2 and without attaching lint.

Depending on the cloth material, it is necessary to change the working degree of the product of the present invention. In such a case, by removing the nut 6, the rubber plate 5 and the spacer ring 4 are removed.
Is replaced with one having a different thickness and outer diameter.

When the rubber plate 5 is worn or damaged, it may be replaced in the same manner.

[0020]

According to the present invention constructed as described above, the rubber plate comes into surface or line contact with the cloth material, thereby preventing fluffing of the cloth material, and since the plate is formed integrally, winding of lint or fluff. In addition, the plate is used to directly and effectively guide the cloth material in the circumferential direction to assist the cloth spreading force by the spiral strip of the screw roll, and is made of brush hair. It is more durable than conventional products.

According to the second aspect of the present invention, the rubber plate and the spacer ring can be easily replaced, so that the guiding performance according to the type of the cloth can be easily obtained and the maintenance can be easily performed.

[Brief description of drawings]

FIG. 1 is a partially omitted longitudinal sectional view showing an embodiment of the present invention.

FIGS. 2A and 2B show a spacer ring according to the embodiment, wherein FIG. 2A is a front view and FIG. 2B is a side view.

3A and 3B show a rubber plate according to the embodiment, wherein FIG. 3A is a front view and FIG. 3B is a side view.

FIG. 4 is an operation explanatory view showing a relationship between the rubber plate according to the embodiment and a spiral strip of a screw roll.

FIG. 5 shows a main part of a conventional centering cross guider. (A) is a front view and (b) is a side view.

[Explanation of symbols] 3a Roll shaft member 4 Spacer ring 5 Rubber plate 6 Nut a Collar part b Screw part

Claims (2)

[Claims] 1. A donut-shaped soft rubber plate made of silicon or the like having an outer diameter larger than that of the roll shaft member at intervals of several mm in the center line direction.
A control roll for a centering cross guider, which is arranged in parallel along a plane orthogonal to the same center line. 2. The roll shaft member has a cylindrical member provided with a flange at one end and a screw portion at the other end, and a number of donut-shaped rubber plates are provided with a flange and a screw portion on the outer periphery of the roll shaft member. 2. The centering cloth according to claim 1, wherein the centering cloth is fitted with a spacer ring having a smaller diameter than that of the rubber plate, and is fastened with a nut screwed to the screw portion. Guider control roll.