JPH0967720A - Device for holding pad support frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for holding a pad support frame, not requiring works for forming a tapped hole in a slide and for mounting a support bracket by detachably holding both the ends of a pad support frame in the holding grooves of the support bracket incorporatively formed on the side surface of the slide for a draft roller. SOLUTION: A support bracket 11 is incorporatively molded on the side surface of a back slide 4 for a draft roller, and both the ends of a pad support frame 15 are detachably held in the holding grooves 13 of the support bracket 11. A notched window 24 is formed at a part faced to each draft part peripheral surface 8e of a back roller in the joint part 20 of the pad support frame 15, and the pad piece 32 of a clearer pad 30 is projected from the notched window.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for holding a pad support frame which supports both ends of a pad support frame which is provided with a clearer pad whose tip is brought into contact with the outer periphery of a draft roller.

[0002]

2. Description of the Related Art Conventionally, in a spinning machine, a roller stand is arranged at a predetermined pitch in the longitudinal direction of a machine base, and a slide for a draft roller is mounted on the roller stand.
A draft roller is rotatably supported on this slide. Then, since the fiber debris adheres to the fiber passing portion (streak portion) of the draft roller supported in this way by drafting the fiber, in order to remove the debris, the tips of a large number of clear lapats are attached to the outer periphery of the draft roller. It is provided so as to be in contact with (the outer periphery of the streak portion). These Kriyarapats are located between adjacent roller stands (called staff).
In addition, it is attached to a pad support frame that is laid horizontally along the length of the machine base. The longitudinal ends of the pad support frame are detachably fitted into holding grooves of a support bracket integrally fixed by bolts to a draft roller slide mounted on the roller stand, so that the pad support frame is horizontally mounted between the roller stands. It has been carried out (Actual Kaihei No. 4-106375).

[0003]

As described above, in the pad support frame having the clearer pad attached thereto, the support bracket is fixed to the slide with bolts, and the support bracket is detachably fitted into the holding groove of the support bracket. Since it is necessary to process a screw hole for screwing a bolt on the slide, there is a problem that the processing man-hour is required. Further, since the support bracket is a separate body, there is a problem in that the work of assembling the support bracket to the slide is required, and there is a problem that the number of assembling man-hours is increased, resulting in a higher cost. An object of the present application is to provide a structure capable of inexpensively holding a pad support frame between staffs.

[0004]

In order to solve the above-mentioned problems, according to claim 1 of the present application, both ends of a pad support frame formed by attaching a clearer pad for contacting the tip with the outer periphery of the draft roller are attached to a roller stand. In a device for holding a pad support frame that is detachably held in a holding groove of a support bracket that is integral with a slide for a roller, the support bracket is integrally formed on a side surface of the slide. In the second aspect, the support bracket and the slide are integrally formed by die casting.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Slides are attached to respective roller stands arranged at a predetermined pitch along a longitudinal direction of a frame of a spinning machine, and draft rollers are rotatably supported on the slides. The slide, especially the back slide, is integrally formed with a support bracket that has a holding groove for detachably holding the pad support frame on its side surface, and holds the support bracket that faces the longitudinal direction between adjacent roller stands. Both ends of the pad support frame are fitted into the grooves, and the tip of the clearer pad attached to the pad support frame is brought into contact with the outer periphery of the streak portion of the back roller. The slide and the support bracket are integrally molded by die casting, and the cost is lower than that by machining.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a drafting device of a spinning machine, in which 1 is a roller beam and 2 is a roller stand fixed on the roller beam 1 at a predetermined spindle pitch (for example, 6). It is provided for each spindle pitch). Reference numeral 3 is a middle slide, and 4 is a back slide, which are fixed to the roller stand 2 so that their positions can be adjusted,
The back slide 4 will be described. As shown in FIGS. 2 and 3, the engaging projection 4a formed on the lower surface of the back slide 4 is movably fitted into the front-rear direction groove 2a on the upper surface of the roller stand 2 to allow the back slide 4 to move. Nut housing portion 4f (see FIG. 4)
The roller stand 2 is integrally fixed to the roller stand 2 by the nut 51 and the bolt 50 housed in the. 6, 6a are a pair of front rollers, 7, 7a are a pair of middle rollers, 8, 8
Reference numeral a denotes a pair of back rollers, each of which constitutes a draft roller, and the rollers 6, 7, and 8 on the Bottom side are rotatably supported by a roller stand 2, a middle slide 3, and a back slide 4, respectively, as is well known. The top rollers 9a, 7a, 8a are rotatably supported by the top arm 9.

As shown in FIGS. 2 and 3, the back slide 4
Support brackets 11 are integrally formed downward on both sides of the roller stand 2 on the side surface 4b.
In the present embodiment, the support bracket 11 and the back slide 4 are integrally formed by die casting. Of course, both may be cut out by cutting to form the two integrally, but die casting is preferable because the manufacturing cost can be reduced. Each of the support brackets 11 is formed with a holding groove 13 which opens toward the back roller 8. The holding groove 13 is formed so that the upper portion of the front surface is opened, and a pad support frame 15 described later can be inserted into the holding groove 13 at an angle. Further, the front surface of the holding groove 13 is formed in the joint portion 13c so as to support the substantially central portion of the support plate 18 of the pad support frame 15, and the upper rear surface of the holding groove 13 is the upper portion of the support plate 17 of the pad support frame 15. Is formed on the protruding portion 13a protruding forward so as to support the. The protrusion 13a and the joint 1
The distance from 3c is slightly larger than the thickness of the pad support frame 15. In addition, the protrusion 13a and the joint 13
The pad support frame 1 is provided on the bottom surface of the holding groove 13 facing between
An engaging recess 13b with which the lower end of 5 is engaged is formed.
As described above, in the present application, since the support bracket 11 is formed integrally with the back slide 4, the support bracket 1 can be simply attached to the roller stand 2.
Since 1 is also attached at the same time, compared to the case where they are separate as in the conventional case, there is no need for screw hole processing for attachment or assembling work, and the processing man-hours and assembling man-hours can be reduced.

Reference numeral 15 designates a pad support frame which is detachably fitted in holding grooves 13 on opposite sides of the support bracket 11 of the roller stands 2 of which both ends are adjacent to each other, and is a length between the adjacent roller stands 2 and 2. The back roller 8 is formed to have a size and arranged parallel to the back roller 8. This pad support frame 1
Reference numeral 5 denotes a pair of support plates 17 and 18 which are formed by bending a metal plate into two as shown in FIGS. 2 and 3 and facing each other at a predetermined interval so as to sandwich a clearer pad described later, and a pair of these support plates. A connecting portion 20 composed of a bent portion of a metal plate that connects 17 and 18, and a side edge portion of the metal plate is bent so that the tip end portion of the one support plate 17 is substantially moved to the other support plate 18 side. It is composed of a receiving piece 22 protruding at a right angle. In the connecting portion 20 of the pad support frame 15, cutout windows 24 are formed by pressing or cutting at the portions facing the respective draft portion peripheral surfaces 8e of the back roller 8. The width of the cutout window 24 is set to be larger than the width of the draft portion peripheral surface 8e so that a putt piece of a clearer pad, which will be described later, can be projected. A pad inlet / outlet 25 is formed between the tip of the support plate 17 and the tip of the receiving piece 22 so that the clear pad can be taken in and out. The protruding amount of the receiving piece 22 is set so that the tip end thereof is flush with the outer surface of the other support plate 18.

Reference numeral 30 denotes a clearer pad held by the pad support frame 15, which is made of an elastic material such as abrasion-resistant synthetic rubber and is held at a position corresponding to each cutout window 24. The clearer pad 30 includes a holding plate 31 sandwiched between a pair of support plates 17 and 18, and a pad piece 3 protruding from one end of the holding plate 31 to the cutout window 24 so as to be able to penetrate therethrough.
2 and a pair of contact pieces 3 protruding from both side edges of the holding plate 31 so as to be able to contact the connecting portions 20 on both sides of the cutout window 24, respectively.
3, 33, and an engaging piece 34 projecting from the other end of the holding plate 31 so as to be engageable with the receiving piece 22. The distance between the contact portions 33a, 33a of the contact pieces 33, 33 and the engagement portion 34a of the engagement piece 34 is determined by the connecting portion 2 of the pad support frame 15.
The size of the gap between 0 and the receiving piece 22 is substantially matched,
The contact portions 33a, 33a and the engaging portion 34a can be brought into contact with the connecting portion 20 and the receiving piece 22, respectively, with the holding plate 31 and the engaging piece 34 along the supporting plates 17, 18. . The lateral width of the pad piece 32 is substantially equal to the width of the outer peripheral surface 8e of the draft portion (streak portion) of the back roller 8. When the clearer pad 30 is held by the pad support frame 15 as shown in FIG. 32 is the outer peripheral surface 8 of the draft section
It is designed to elastically abut on e. The clearing pad 30 is held at the portion corresponding to each cutout window 24.

When the clearer pad 30 is mounted on the pad support frame 15 having the above structure, the putt support frame 15 is removed from the support bracket 11 when the putter support frame 15 is removed.
The pad piece 32, the holding plate 31, and the abutment pieces 33, 33 of the clearer pad 30 are inserted between the pad entrance 25 and the pair of support plates 17, 18 while curving themselves by elastic deformation, and the pad piece 32 is inserted into the cutout window 24. From the contact piece 33, the contact portions 33a, 33a of the contact pieces 33, 33 are brought into contact with the connecting portion 20, and the engaging piece 34 is completely pushed into the pad inlet / outlet 25 so as to follow the support plate 17, 34a is engaged with the receiving piece 22, and thus the clearer pad 30 is immovably held between the support plates 17 and 18.

Next, a method of attaching and detaching the pad support frame 15 accompanying the periodical cleaning of the draft device and the replacement of the clearer pad 30 will be described. First, the mounting method will be described. An operator uses the holding groove 1 of the support bracket 11.
The pad support frame 15 is obliquely inserted into the holding groove 13 from the opening of 3 (shown in FIG. 3), the lower end of the pad support frame 15 is pulled forward (to the left in the drawing), and the bottom surface of the holding groove 13 is removed. The engagement recess 13b is engaged. Then, the edge of the pad 30 is brought into contact with the front peripheral surface of the draft roller 8 by applying an appropriate contact pressure (shown by the chain double-dashed line in FIG. 4). At this time, the pad support frame 15 tries to rotate counterclockwise in FIG. 4 due to the elasticity of the pad 30, but since the lower end of the support frame 15 is engaged with the engagement concave portion 13b, the support frame 15 is prevented from rotating and the draft. It is held facing the roller 8. After repeating this operation for all one spinning machine, the draft roller 8 is driven, and the rotation of the draft roller 8 causes the edge of the pad 30 to pass through the lower end of the draft roller 8 by the frictional force with the draft roller 8. Of the draft roller 8 is brought into contact with the rear side peripheral surface of the draft roller 8 by applying an appropriate contact pressure. At this time, the pad support frame 1
Reference numeral 5 denotes a front surface 13c of the holding groove, an engaging recess 13b, and a protruding portion 13 due to the repulsive force applied to the edge of the pad 30, which is an elastic body.
supported by a (shown in solid line in FIG. 4).

Next, when removing the pad support frame 15,
From the state of FIG. 4, the lower end of the pad support frame 15 is pushed diagonally rearward (obliquely rightward in the drawing) against the bending repulsive force applied to the edge of the pad 30, and the pad support frame 15 and the engagement recess 1 are pushed out.
By releasing the engagement with 3b, the pad support frame 15 is opened in a state of being inclined with respect to the draft roller 8 as shown in FIG. 3, and the opened pad support frame 15 is taken out from the holding groove 13.

[0013]

As described above, according to the present invention, since the support bracket is integrally formed on the side surface of the slide, the work of assembling the support bracket to the slide and the screw hole therefor are conventionally performed on the slide. Since no processing is required, both the number of processing steps and assembly steps can be reduced, and the cost can be reduced. Further, according to the second aspect, since such an integral structure is molded by die casting, it can be carried out at a lower cost than in the case of machining.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a draft device of a spinning machine.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II of FIG.

FIG. 3 is a diagram for explaining attachment / detachment of a pad support frame.

FIG. 4 is a view showing a mounted state of a pad support frame.

[Explanation of symbols]

4 Back Slide (Slide), 11 Support Bracket, 13 Holding Groove, 15 Pat Support Frame, 30 Cleara Pad

Claims (2)

[Claims] 1. Both ends of a pad support frame formed by mounting a clearer pad for contacting the tip with the outer periphery of the draft roller are detachably attached to holding grooves of a support bracket which is integrated with a slide for the draft roller attached to the roller stand. A device for holding a pad support frame for holding the pad support frame, wherein the support bracket is integrally formed on a side surface of a slide. 2. The support bracket and the slide are integrally molded by die casting.
Holding device for the pad support frame described.