JPH11323670A - Top apron cradle for spinning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a top-apron cradle capable of responding to frames different in spindle gate with same combination of cradle and apron guide in a multiple spindle integrated type apron draft device. SOLUTION: This top-apron cradle has detachably attached left and right pair of the apron guides 13R and 13L nipping the supporting part 12a formed on the cradle body 12. On the back of the each supporting part 12a are formed a pair of protruding parts 16 on the linear symmetry position to the center of the cradle body 12. A regulating part 18 which regulates the travelling of the top-apron to the width direction, is protruded on the upper side nipping piece 15b of the apron guides 13R and 13L, and a pair of inserting holes 17 capable of inserting the protruding part 16 are formed on the lower nipping piece. The inserting position 17 of the each apron guide 13R and 13L is set at the position where the center distance of the apron guides 13R and 13L is changed by exchanging the left and right setting position of the apron guides 13R and 13L.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top apron cradle in a spinning machine such as a ring spinning machine, and more particularly, to a top apron cradle of an apron draft rafting device integrated with a plurality of weights attached to a weighting arm.

[0002]

2. Description of the Related Art Generally, in a ring spinning machine, an apron draft device is disposed between a front roller and a back roller so that a roving yarn is gripped and drafted between a top apron and a bottom apron. . The bottom apron is always held at a predetermined position after it has been assembled once, but the top apron is often arranged at a position away from the bottom apron at the time of thread breakage or maintenance work. In addition, in order to facilitate maintenance work and the like, the draft device supports a top roller including a top apron as a pair of two weights on a weight arm, and a draft position (spinning position) where each top roller abuts on a bottom roller. In many cases, the apparatus can be arranged at a standby position separated from the bottom roller.

For example, Japanese Unexamined Patent Publication No. 50-90727 discloses a top apron cradle integrated with two weights as shown in FIG.
Are disclosed. The top apron cradle 50 is provided with a cradle roller (middle top roller) at the center in the width direction of the substantially L-shaped cradle body 51.
A saddle portion 53 serving as an attachment portion to the cradle 52 is provided, and a pair of tensor 54 is fixed at a predetermined position at the tip of the cradle body 51. The tensor 54 is provided with an apron guide 55 for restricting the movement of the apron (not shown) in the width direction. The cradle body 51 also has a guide groove 56 formed at a position facing the fixed position of the tensor 54.

In addition, a top apron cradle does not have a tensor formed separately at the tip of the cradle main body, but has a role of a tensor at the tip of the cradle main body to move the apron between the tip of the cradle main body and the middle top roller. There is also a configuration of winding around. In this configuration,
An apron guide for restricting the width of the apron in the cradle main body is provided so as to protrude integrally therewith.

[0005]

In the ring spinning machine, the standard is not set so that the distance between the adjacent spindles (spindle gauge) is constant in all machines, and the spindle gauges are 70 mm and 75 mm. Are generally used. Therefore, conventionally, it is necessary to prepare a cradle body in which the position of the apron guide or the fixing position of the tensor provided with the apron guide are different according to the spindle gauge of the machine and 70 mm and 75 mm, respectively. As a result, there is a problem that a large number of two types of cradle bodies must be stored as stock products in order to shorten the period from order to shipment.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an apron draft device integrated with a plurality of weights attached to a weighting arm. An object of the present invention is to provide a top apron cradle in a spinning machine that can be handled by a combination of a cradle body and an apron guide.

[0007]

According to the first aspect of the present invention, there is provided a top apron cradle in a spinning machine equipped with an apron draft device integrated with a plurality of weights attached to a weighting arm. A cradle body supported on a support shaft supported by the weighting arm; and an apron formed separately from the cradle body and attached to the cradle body to restrict movement of the top apron in the width direction. And a positioning means for positioning and fixing the apron guide to one of a plurality of predetermined positions corresponding to a spindle gauge with respect to the cradle body.

In the invention according to claim 2, the apron guide is of one type, and the positioning means is a first fitting portion provided on the cradle body side and a second fitting portion provided on the apron guide. A plurality of fitting portions, at least one of the first and second fitting portions is provided at each mounting position of each apron guide.

According to a third aspect of the present invention, in the first aspect of the present invention, two types of the apron guides are provided, and the positioning means includes a first fitting portion provided on the cradle body side; A second fitting portion provided on the apron guide, wherein the first fitting portion is provided at a position symmetrical with respect to a center of the cradle body,
The second fitting portion is provided at a position where the distance from the center of the cradle body can be changed by exchanging the left and right mounting positions of both apron guides.

[0010] According to a fourth aspect of the present invention, in the first aspect of the present invention, the apron guide is formed integrally with the tensor. In the invention according to claim 5, in the invention according to claim 4,
A plurality of the first and second fitting portions are provided at predetermined fixed positions of the apron guides.

According to the invention described in claim 6, in the invention described in any one of claims 1 to 5, the apron guide is formed so as to be able to clamp the cradle body.

[0012] In the inventions according to claims 1 to 6, 1
The top apron cradle is supported on each weighting arm. The top apron cradle is supported on a spindle supported by the weighting arm, and supports the top apron wound between the tensor and the top roller. The top apron is pressed against the bottom apron in a state where the movement in the width direction is restricted by the apron guide, and travels with the travel of the bottom apron. The apron guide is fixed to one of a plurality of predetermined positions corresponding to the spindle gauge with respect to the cradle body. Positioning of the fixed portion is performed by positioning means.

According to the second aspect of the present invention, the positioning means is configured such that the first fitting portion provided on the cradle body side and the second fitting portion provided on the apron guide are fitted. Position the apron guide with respect to the cradle body. The same apron guide is attached to the left and right sides of the cradle body, and by changing the fitting positions of the first and second fitting portions, the center distance (pitch) between the adjacent apron guides is predetermined. Set to spindle gauge.

According to a third aspect of the present invention, in the first aspect of the invention, the same number of apron guides are attached to both sides of the center of the cradle body with two types of the apron guides. The positioning means performs positioning by fitting a first fitting portion provided on the cradle body side with a second fitting portion provided on the apron guide. If the mounting positions of the apron guides disposed on both sides of the center of the cradle body are interchanged, the distance from the center of the cradle body can be changed.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the apron guide is formed integrally with the tensor. Therefore, it is easy to apply to an apron draft device in which a tensor is formed separately from the cradle body.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, each apron guide is positioned at a predetermined fixed position with a plurality of first and second fitting portions fitted. . Therefore, when the fitting portion is formed in a columnar shape, the apron guide is prevented from being displaced even when a biased force is applied from the top apron.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the apron guide is easily attached and detached, and the position of the apron guide is determined by the first and second fitting portions. The work of attaching to the device becomes easy.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is embodied in an apron draft device integrated with two weights will be described below with reference to FIGS. As shown in FIG. 2, the bottom apron 1 is wound around the bottom roller 2, the first bottom ten server 3, and the second bottom ten server 4. Bottom ten server 3,
Reference numeral 4 has a length common to a plurality of weights, and is disposed in parallel with the longitudinal direction of the machine base.

A front top roller 6 is supported at the tip of a known weighting arm 5 for supporting the top roller, and a support arm 7 is fixed behind the front top roller 6. The center of a support shaft 8 is rotatably supported at the tip of the support arm 7, and a middle top roller 9 is rotatably supported at both ends of the support shaft 8. A top apron cradle 10 is supported on the support shaft 8, and a top apron 11 is wound between the middle top roller 9 and the top apron cradle 10.

As shown in FIG. 1, the top apron cradle 10 has a cradle body 12 supported on the support shaft 8 at the base end thereof, and an apron formed separately from the cradle body 12 and attached to the cradle body 12. Guide 13
R, 13L. Apron guide 13R, 1
3L is an apron guide support portion (hereinafter simply referred to as a support portion) 1 formed as a pair of left and right sides on the tip side of the cradle body 12.
2a. As shown in FIG. 3, the cradle body 12 has an arc portion 12 b formed near the base end in contact with the outer peripheral surface of the support shaft 8, and a leaf spring 14 fixed to the central portion of the cradle body 12 has the arc portion 12 b. Support shaft 8 on the other side
It is supported in a state of contact. As shown in FIG. 1, the leaf spring 14 has a first end fixed to the surface of the cradle main body 12 and a second end penetrating a hole 12 c formed near the base end of the cradle main body 12. It is arranged at the position.

The apron guides 13R and 13L are detachably fixed to the distal end of the support portion 12a so as to serve as a tensor, and the distal ends thereof are formed in an arc shape. The apron guides 13R and 13L are made of fiber reinforced resin and are formed in a shape capable of holding the tip of the support portion 12a. As shown in FIG. 5, in this embodiment, the apron guides 13R and 13L include an upper holding piece 15b and a lower holding piece 15c extending in parallel from the bent portion 15a.
The two holding pieces 15b and 15c are flexible, and the interval between them is formed to be slightly smaller than the thickness of the support portion 12a.
In a state where the support portion 12a is arranged between the support members 12b and 15c, the holding pieces 15b and 15c hold the support portion 12a while pressing the support portion 12a. As shown in FIG. 4, the lower holding piece 15c has a notch 15d formed near the center thereof.

The cradle body 12 has a first
The projection 16 as a fitting portion of the apron guide 13R,
A plurality is provided for each mounting position of 13L, and in this embodiment, a pair is provided. Each pair of convex portions 16 is formed at a position symmetrical with respect to the center line of the cradle body 12. The protrusion 16 is formed in a columnar shape.

As shown in FIGS. 3 (b), 4 and 5,
In the apron guides 13R and 13L, a fitting hole 17 as a second fitting portion is formed in the lower holding piece 15c. The fitting hole 17 has a diameter that can be fitted to the projection 16 and is formed at the same pitch as the projection 16. The top apron 1 is provided on both left and right sides of the upper holding piece 15b for guiding the top apron 11.
A restricting portion 18 for restricting the movement of the top apron 11 in the width direction is provided so as to be substantially the same as the width of the top apron 11.

As the apron guide, two types of apron guides 13R and 13L having different positions for forming the fitting holes 17 are provided. The first apron guide 13R is shown in FIG.
(A) is shown attached to the left support portion 12a, and the center positions of the pair of fitting holes 17 are formed to be deviated rightward from the center of the apron guide 13R. The second apron guide 13L is shown attached to the right support portion 12a in FIG. 1A, and the center position of the pair of fitting holes 17 corresponds to the apron guide 13L.
It is formed so as to be deviated leftward from the center of L.

The first and second apron guides 13R, 13L are attached to the cradle body 12 one by one. The left and right attachment positions of the apron guides 13R, 13L are interchanged, so that the respective apron guides 13R, 1L are replaced.
The distance of the center of 3L from the center line of the cradle body 12 can be changed. In this embodiment, the first apron guide 13R is on the left side, and the second apron guide 13R is
In the state where L is attached to the right side, the distance between the centers corresponds to a spindle gauge of 75 mm, the first apron guide 13R is on the right side, and the second apron guide 13 is
L is attached to the left side, and is formed so as to correspond to a spindle gauge having a center-to-center distance of 70 mm.

In this embodiment, a positioning means capable of positioning and fixing the apron guides 13R, 13L at a plurality of predetermined positions corresponding to the spindle gauge with respect to the cradle body 12 is constituted by the respective convex portions 16 and the respective fitting holes 17. Have been.

At the center of the tip of the cradle body 12, the distance (gauge) between the tensor and the first bottom ten server 3 is set to a predetermined value by contacting the upper surface of the first bottom ten server 3. A fitting protrusion 12d for attaching a tensor gauge adjustment piece (not shown) to be set is formed.

Next, the operation of the device configured as described above will be described. In the open state where the pressurization by the weighting arm 5 is released, the top apron cradle 10 is arranged to hold the top apron 11 at a position separated from the bottom apron 1. Waiting arm 5
Is arranged at a setting position (spinning position) for pressing each top roller toward the bottom roller 2, the top apron 11 comes into contact with the bottom apron 1.

The bottom apron 1 is rotated by the rotation of the bottom roller 2. Then, the top apron 11 is rotated in synchronization with the bottom apron 1 by the contact pressure between the top apron 1 and the bottom apron 1, and conveys a fiber bundle (not shown) in cooperation with the bottom apron 1. The top apron 11 travels at a predetermined position, with the upper traveling portion being guided by the regulating portions 18 of the apron guides 13R and 13L to restrict movement in the width direction.

When assembling the top apron cradle 10, the apron guide 1 for the cradle body 12
The fixed positions of 3R and 13L are changed corresponding to the spindle gauge of the machine base. When the spindle gauge is 75 mm, as shown in FIG.
3R is fixed to the left side of the cradle body 12, and the second apron guide 13L is fixed to the right side of the cradle body 12.
The apron guides 13R, 13L are positioned so that the fitting holes 17 are fitted with the projections 16 of the cradle body 12, and the cradle body is held with both holding pieces 15b, 15c holding the support portion 12a of the cradle body 12. 12 fixed. When the spindle gauge is 70 mm, the first apron guide 13R is located on the right side of the cradle body 12,
The second apron guide 13L is fixed to the left side of the cradle main body 12.

When changing the mounting positions of the apron guides 13R, 13L, the apron guides 13R, 13L are changed.
When a force is applied in a direction away from the tip of the cradle body 12, the two holding pieces 15b and 15c bend and the fitting holes 17
Of the apron guide 13 is released.
R and 13L are detached from the cradle body 12. When fixing the apron guides 13R, 13L at predetermined positions, the apron guides 13R, 13L are clamped by the clamping pieces 15b, 15c at the distal end side of the cradle body 12 so that the fitting holes 17 correspond to the projections 16. Then, the apron guides 13R, 13L are pushed into the rear of the cradle body 12 in this state. Then, the apron guides 13 </ b> R and 13 </ b> L are fixed at predetermined positions of the cradle body 12 in a state where the fitting holes 17 are fitted and positioned in the convex portions 16.

This embodiment has the following effects. (1) Apron guide 1 for cradle body 12
3R and 13L are fixed to one of a plurality of predetermined positions corresponding to the spindle gauge by a positioning means. Therefore, unlike the conventional apparatus, one top apron cradle 10 can handle a plurality of spindle gauges. That is, the same cradle body 12 and apron guides 13R and 13L can be used for machines with different spindle gauges. As a result, there is no need to prepare and store a plurality of types of cradle bodies 12 each having an apron guide at intervals corresponding to the spindle gauge of the machine, and the storage space is reduced.

(2) Since the apron guides 13R and 13L are formed so as to hold the cradle body 12,
In combination with the positioning by fitting of the protrusion 16 and the fitting hole 17, it can be easily fixed at a predetermined position with one touch.
In addition, since both holding pieces 15b and 15c have flexibility,
Removal is easy with one touch.

(3) Since the positioning means is composed of a combination of the convex portion 16 and the fitting hole 17 fitted to each other, the configuration of the positioning means is simplified. (4) a first fitting portion (convex portion 16) in which the positioning means is provided at a position symmetrical with respect to the center of the cradle body;
A second fitting portion (fitting hole 17) provided on the apron guides 13R and 13L. Further, the center position of the second fitting portion is shifted rightward from the center of the apron guide 13R in the first apron guide 13R,
The second apron guide 13L is formed so as to be located on the left side. Therefore, the center distance between the two apron guides 13R, 13L can be easily changed by exchanging the left and right mounting positions of the two types of apron guides 13R, 13L. In this embodiment, 70 mm and 75 mm
Can be changed to the interval corresponding to the spindle gauge.

(5) Apron guides 13R, 13L
Are positioned at a predetermined fixed position by a plurality of (two in this embodiment) first and second fitting portions. Therefore, even when the shape of each fitting portion is a columnar shape that is easy to manufacture, displacement of the apron guide when a biased force is applied from the top apron 11 is prevented.

(6) The apron guides 13R and 13L are formed integrally with the tensor. Therefore, it can be easily applied to an existing apron draft device in which a tensor is formed separately from the cradle body 12 with a simple modification.

(7) Notch 1 in lower holding piece 15c
Since 5d is formed, each portion of the lower holding piece 15c located on both sides of the notch 15d is easily bent, and attachment / detachment to / from the cradle body 12 becomes easier.

(8) Since the apron guides 13R and 13L are made of fiber reinforced resin, the manufacturing cost is lower than that of metal. (Second Embodiment) Next, a second embodiment will be described with reference to FIG. In this embodiment, one apron guide is used.
The point that the same apron guide 19 is attached to each of the right and left sides of the cradle body 12 differs greatly from the above-described embodiment. The same parts as those of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The cradle body 12 is provided with a pair of projections 16 as first fitting portions on both left and right sides of the center line, respectively, at symmetrical positions with respect to the center line of the cradle body 12. The apron guide 19 is provided with a pair of fitting holes 17a and 17b as second fitting portions. The arrangement interval between each pair of convex portions 16 and the arrangement interval between each pair of fitting holes 17a and 17b are formed to be the same. The position of the first fitting hole 17a is such that when the pair of apron guides 19 are positioned by the fitting portion 17a and fixed to the cradle body 12, the distance between the apron guides 19 is 75 mm. It is set to correspond to the gauge. The arrangement position of the second fitting portion 17b is determined by a pair of apron guides 19,
The cradle body 1 is positioned by the fitting portion 17b.
2, the distance between the apron guides 19 is set to correspond to a spindle gauge of 70 mm.

Therefore, in this embodiment, the following effects can be obtained in addition to the effects (1) to (3) and (6) to (8) of the above embodiment. (9) A plurality of spindle gauges can be handled simply by changing the mounting position of the same apron guide 19. Therefore,
There is no need to prepare two types of apron guides 19,
According to this embodiment, the manufacturing cost of the apron guide 19 can be reduced.

The embodiment is not limited to the above, but may be embodied as follows, for example. The apron guide does not necessarily have to be formed integrally with the tensor, and may be formed separately from the tensor. In addition, an apron guide may be attached to the top apron cradle 10 in which the tip of the cradle body 12 functions as a tensor. For example, FIGS. 7 and 8
As shown in FIG. 3, the apron guides 20R and 20L having no tensor function are connected to the support portions 12 of the cradle body 12.
a.

A pair of convex portions 16 as first fitting portions are provided on the rear side of each of the support portions 12a on the rear side thereof for each of the mounting positions of the apron guides 20R and 20L. Each pair of convex portions 16 is formed at a position symmetrical with respect to the center line of the cradle body 12. Apron guide 2
Each of 0R and 20L is formed in a clip shape capable of holding the rear portion of the support portion 12a, and the restricting portions 18 are provided on both right and left sides of the upper holding piece 21a to be fitted to the lower holding piece 21b as a second fitting portion. A pair of holes 17 are formed at the same pitch as the projections 16. As in the first embodiment, two types of apron guides 20R and 20L having different fitting holes 17 are attached one by one. First Apron Guide 2
7 is shown attached to the left support portion 12a in FIG. 7, and the center positions of the pair of fitting holes 17 are formed so as to be deviated rightward from the center of the apron guide 20R. The second apron guide 20L is shown attached to the right support portion 12a in FIG. 7, and the center position of the pair of fitting holes 17 is set to the apron guide 20L.
It is formed so as to be deviated leftward from the center of L.

Therefore, in this embodiment, the mounting positions of the apron guides 20R and 20L are changed between right and left, so that both apron guides are positioned at a position corresponding to one of the predetermined 70 mm and 75 mm spindle gauges. Apron guides 20R and 20L are fixed. In this embodiment, (1) to (5) of the first embodiment,
The effects (7) and (8) are obtained.

It is not necessary to provide a plurality of first and second fitting portions at predetermined fixed positions of the apron guides, respectively, and it is necessary to provide one first and second fitting portions at predetermined fixed positions of the apron guides. You may. For example, as shown in FIG. 9, each support portion 12 a has a horizontally long convex portion 2 as a first fitting portion in a state symmetrical with respect to the center line of the cradle body 12.
2 are provided. The apron guides 13R and 13L are provided with a fitting hole 23 as a second fitting portion for fitting with the projection 22. The position of the fitting hole 23 is the first apron guide 13
In R, the center is formed to the right from the center, and in the second apron guide 13L, the center is formed to the left from the center. The distance between the center line of the cradle body 12 and the center of each apron guide 13R, 13L can be changed by exchanging the left and right mounting positions of the apron guides 13R, 13L. In this embodiment, (1) to (4) and (6) to (8) of the first embodiment are used.
The effect of is obtained.

The first fitting portion formed on the cradle body 12 side is a fitting hole, and the apron guides 13R, 13R
The second fitting portions formed on the L, 19, 20R, and 20L sides may be convex portions. Also in this case, the same effects as those of the above-described embodiments can be obtained when the relationship between the concave and convex portions of the two fitting portions is opposite. However, as in the second embodiment, the cradle body 1
In the case of a configuration in which the same two apron guides 19 are fixed to each other, a large number of fitting holes as first fitting portions are provided corresponding to the spindle gauges, and the convex portion as the second fitting portion is half of that. And

A fitting hole may be used instead of the fitting hole as the fitting portion. Further, the shape of the convex portion as the fitting portion is not limited to a columnar shape, but may be another shape such as a hemisphere. The first fitting portion is formed on the front side (upper side) of the cradle body 12, and the apron guides 13R, 13L, 19,
20R, 20L, the second fitting portion formed in the upper holding piece 1
5b and 21a.

○ Apron guides 13R, 13L, 1
9, 20, R and 20L may be made of resin instead of fiber reinforced resin. Further, for example, the apron guide may be formed by bending and forming spring steel. Even in this case, the cradle body 12 can be attached with the apron guide sandwiching the cradle body 12.

The apron guide is the cradle body 12
Instead of the configuration in which the pinch is clamped, a configuration in which the screw is fixed by a screw may be used. For example, FIG.
As shown in (a), a screw hole 24 is formed in the support portion 12a, and a hole 26 is formed in the apron guide 25. Screw hole 2
4 is formed at the same position as the position of the convex portion 16 of the first embodiment, and the hole 26 is formed at the same position as the position of the fitting hole 17. Then, the apron guide 25 is tightened and fixed to the support portion 12a via the screw 27 and the washer 28.

In order to fix the apron guide to the cradle body 12 with screws, the support portion 12a plays the role of a tensor, and the apron guide 29 is made of metal, as shown in FIG. Make it thick. In addition, a screw hole 30 is formed in the apron guide 29, and a hole 31 is formed in the support portion 12a. The hole 31 is formed at the same position as the position of the projection 16 of the first embodiment, and the screw hole 30 is formed at the same position as the position of the fitting hole 17. Then, the apron guide 29 is fixed to the support portion 12a with the screw 27.

○ Screw the apron guides 25 and 29
In the case of a configuration fixed to the cradle body 12 with
A slot is formed as 31 and the apron guides 25 and 29 are positioned while the screw 27 is loosened.
5 and 29 are slid along the long hole, and screw 2
7 may be tightened.

The present invention is not limited to the two-weight integrated type, but may be applied to a configuration in which one weight arm 5 supports four weights of top rollers. For example, when the configuration of the first embodiment is applied, the support portion 1 of the cradle body 12 is used.
2a, the apron guide 13
R and 13L can be fixed two by two.

The technical ideas (inventions) other than those described in the claims, which can be understood from the above embodiments, will be described below together with their effects. (1) In the invention according to any one of claims 1 to 6, the apron guide is made of resin or fiber reinforced resin. In this case, the manufacturing cost is lower than that made of metal.

[0053]

As described in detail above, claims 1 to 6 are provided.
According to the invention described in (1), the same combination of the cradle body and the apron guide can be applied to a machine with a different spindle gauge, and it is not necessary to prepare and store a plurality of types of cradle bodies, unlike the related art.

According to the second aspect of the present invention, a plurality of spindle gauges can be handled only by changing the mounting position of the same apron guide. Therefore, it is not necessary to prepare two types of apron guides, and the manufacturing cost of the apron guide can be reduced.

According to the third aspect of the present invention, the center spacing between the two apron guides can be easily changed to the spacing corresponding to two different types of spindle gauges by exchanging the left and right mounting positions of the two types of apron guides.

According to the fourth aspect of the present invention, the present invention can be applied to an existing apron draft device in which a tensor is formed separately from a cradle body by simple modification. According to the fifth aspect of the invention, even when the shape of each fitting portion is a columnar shape that is easy to manufacture, it is possible to prevent the apron guide from being displaced when a biased force is applied from the top apron.

According to the sixth aspect of the present invention, the attachment and detachment of the apron guide is easy, and the work of attaching the apron guide to the positioning position by the first and second fitting portions becomes easy.

[Brief description of the drawings]

FIG. 1 (a) is a front view of a top apron cradle according to a first embodiment, and FIG. 1 (b) is a front view of a state where a fixed position of an apron guide is changed.

FIG. 2 is a partial side view of an apron draft device.

3A is a side view of a top apron cradle, and FIG. 3B is a cross-sectional view taken along line III-III in FIG. 1A.

FIG. 4 is a bottom view of the apron guide.

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 4;

FIG. 6 is an exploded front view of the top apron cradle according to the second embodiment.

FIG. 7 is a front view of a top apron cradle according to another embodiment.

FIG. 8 is an enlarged sectional view taken along line VIII-VIII of FIG. 7;

FIG. 9 is a front view of a top apron cradle according to another embodiment.

FIG. 10A is a cross-sectional view of a state in which an apron guide according to another embodiment is supported, and FIG. 10B is a cross-sectional view of a state in which an apron guide according to another embodiment is supported.

FIG. 11 is a perspective view of a conventional top apron cradle.

[Explanation of symbols]

5 ... Weighting arm, 8 ... Spindle, 10 ... Top apron cradle, 11 ... Top apron, 12 ... Cradle body, 13R, 13L, 19, 20R, 20L,
25, 29 ... apron guide, 16, 22 ... convex part as the first fitting part constituting the positioning means, 17, 17
a, 17b, 23: fitting holes as second fitting portions forming positioning means; 24, 30: screw holes forming positioning means; 26, 31: holes; 27: screws.

Claims (6)

[Claims] 1. A top apron cradle in a spinning machine equipped with an apron draft device integrated with a plurality of weights attached to a weight arm, the cradle body being supported on a spindle supported by the weight arm; An apron guide formed separately from the cradle body and attached to the cradle body to regulate the movement of the top apron in the width direction; and a predetermined apron guide corresponding to a spindle gauge for the cradle body. A top apron cradle for a spinning machine, comprising: positioning means capable of positioning and fixing at one of a plurality of positions. 2. The apron guide is of one type, and the positioning means comprises a first fitting portion provided on the cradle body side and a second fitting portion provided on the apron guide. 2. The top apron cradle in a spinning machine according to claim 1, wherein a plurality of at least one of the first and second fitting portions are provided for each mounting position of each apron guide. 3. The apron guide is provided in two types,
The positioning means includes a first fitting portion provided on the cradle body side and a second fitting portion provided on the apron guide.
The first fitting portion is provided at a position symmetrical with respect to the center of the cradle main body, and the second fitting portion defines the right and left mounting positions of both apron guides. 2. The top apron cradle according to claim 1, wherein the top apron cradle is provided at a position where the distance from the center of the cradle body can be changed by exchanging. 4. The top apron cradle in a spinning machine according to claim 1, wherein the apron guide is formed integrally with a tensor. 5. The top apron cradle in a spinning machine according to claim 4, wherein a plurality of the first and second fitting portions are provided at predetermined fixed positions of the apron guides. 6. The top apron cradle according to claim 1, wherein the apron guide is formed so as to hold the cradle body.