JP2001089029A - Winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding device provided with a cradle to simplify a connection structure of a movable arm to a fixed arm, and easily take out a full package of a long bobbin in the cradle used for holding both long and short bobbins. SOLUTION: The winding device is provided with the fixed arm 3 and the movable arm 4 having hooks 3a and 4a to be engaged with end parts of the fixed arm 3 and the movable arm 4 at an engagement part 5 are provided. The movable arm 4 is provided between the engagement part 5 and the fitting position of a bobbin holder A so as to realize the angle θ of inclination by an inward projected bent part. A gap δ is given to the engagement part 5 of the movable arm 4 with the fixed arm 3, the opening angle is expanded accordingly for the gap δ when the movable arm 4 is opened to easily take out a full package P of a long bobbin f.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp having a movable arm which can be opened and closed with respect to a fixed arm by means of bobbin holders attached to both arms, and which holds both ends of the bobbin so as to be clamped. The present invention relates to a winding device having a dollar.

[0002]

2. Description of the Related Art In a textile machine, a yarn is packaged in a predetermined shape.
For example, a double twisting machine that twists a yarn twice with one rotation of a spindle is known as a winding device that winds the yarn. In such a winding device, the package is wound, for example, while being held in a cradle while rotating in contact with a winding drum, for example. As the cradle, there is a cradle having a movable arm that can swing with respect to a fixed arm, and having a long and short combined bobbin holder capable of holding both a long bobbin and a short bobbin. In this case, when the short bobbin is removed, the opening angle of the movable arm may be small, but when the long bobbin is removed, the opening angle of the movable arm needs to be large.

When the full package is removed from the cradle, the movable arm is opened in the direction (opening direction) opposite to the direction of the urging force applied to clamp the bobbin, and the bobbin holder on the movable arm side is opened. Release one end of the bobbin from the
After detaching the other end of the bobbin from the bobbin holder on the system side and removing the full package, a new empty bobbin is set.

[0004]

However, when the fixed arm and the movable arm are connected by pins with the cradle, and the long bobbin and the short bobbin are used for both purposes, both are used. It is difficult to remove the full package from the cradle irrespective of the length or the short length of the bobbin holder because of the structure of the bobbin holder. Therefore, there is a problem that the shapes of the connecting portions and the members are complicated, and at the same time, the peripheral structure of the connecting portions is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and for example, in a cradle for holding a long bobbin and a short bobbin for a double twisting machine, the connection structure between a movable arm and a fixed arm is simplified. Another object of the present invention is to provide a winding device provided with a cradle that can easily take out a full package of a long bobbin.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a groove for engagement is formed in each of a movable arm and a fixed arm, and the both arms are formed. The engagement grooves are fitted to each other. According to the present invention, the engagement groove is formed in each of the movable arm and the fixed arm, and the engagement grooves of the two arms are fitted to each other, so that the pins and other parts conventionally required for connection are formed. No peripheral member is required, the structure of the connecting portion is simplified, and the projections of both arms caused by the formation of the groove can prevent the two arms from separating.

According to a second aspect of the present invention, one of the movable arm and the fixed arm is provided at an engaging portion between the two arms when the package is clamped. The arm forms an acute angle inward with respect to the arm, and has a bent portion that is convex inward between the engagement portion of both arms and the bobbin holder mounting position. According to the present invention, when the arm is held in the package,
The package is formed by forming an acute angle inward with the other arm and having a bent portion that is inwardly convex between the engagement portion of both arms and the bobbin holder mounting position. At the time of holding, the side wall of the movable arm and the corner of the groove of the fixed arm come into contact with each other to prevent the movable arm from swaying and to hold the package at a proper position. . Furthermore,
When the package is attached or detached, the movable arm can swing freely in the opening direction around the engaging portion where both arms engage until the movable arm forms a right angle with the fixed arm. Since the opening angle of the movable arm can be expanded as compared with the case where the arm does not have the bent portion, the full bobbin can be taken out from the cradle of the long bobbin and the empty bobbin can be mounted. Can be easily performed. When the above-mentioned bent portion is provided in the fixed arm, the above-described effects can be obtained. However, in this case, there is a possibility of contact with surrounding members. It is better to provide. In addition, in the case of a movable arm having no bent portion, the opening angle of the movable arm can be expanded by providing a large gap between the two arms in the engagement portion. At the time of clamping, the movable arm fluctuates due to the gap.

According to a third aspect of the present invention, a leaf spring for urging the movable arm inward is provided at the engagement portion between the two arms. According to the present invention, by providing a leaf spring for biasing the movable arm inward, the leaf spring biases the movable arm inward to maintain a state in which the cradle clamps the bobbin. The wobble of the movable arm due to the gap of the joint is suppressed, and the bobbin is fixed at a predetermined position.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

An embodiment of the present invention will be described below with reference to the drawings, but the present invention is not limited to the embodiment unless it exceeds the gist of the present invention.

In general, a multiple twisting machine including a double twisting machine is
A large number of units 1 as shown in FIG. 2 are arranged in parallel, and the winding drum 17 and the traverse guide 16 are driven by a common drive motor (not shown).

In FIG. 2, a unit 1 of the multiple twisting machine is shown.
Is a spindle 1 penetrating the center of the yarn supply package 9.
The rotary disk 11 is provided below the spindle 10, and the drive motor 12 is provided below the rotary disk 11. A balloon guide 13 is provided above the yarn supply package 9, and a guide row is provided downstream of the balloon guide 13.
Feeder 1 on the downstream side of the guide roller 14 and the guide roller 14.
5, a traverse guide 16 and a winding package 17 are provided downstream of the traverse guide 16 so that the winding drum 17 and the winding package P are in contact with each other. Further, the winding package P is configured so that the cradle 2 rotatably holds the winding package P.

In FIG. 1, a cradle 1 has an L-shaped fixed arm 3 and a movable arm 4, and the two arms 3, 4 are located at the ends of each arm. It has an engaging portion 5 in which the portions are engaged. The ends of the arms 3 and 4 are fixed.
As shown in FIG. 3, the engagement hook 3a, which is a projection,
The engaging groove 3b and the leaf spring mounting groove 3c are provided, and the movable arm 4 is provided with an engaging hook 4a and an engaging groove 4b which are convex portions as shown in FIG.

In FIG. 1, a movable arm 4 and a fixed arm
The movable bobbin holder A has a long (large diameter) bobbin support 6a and a short (small diameter) bobbin support 7a, and the fixed bobbin holder A has a movable bobbin holder A and a fixed bobbin holder B. B has a long (large diameter) bobbin support 6b and a short (small diameter) bobbin support 7b.
The movable bobbin holder A is attached to the movable arm 4 using bolts 18 and the fixed bobbin holder B is attached to the fixed arm 3 using bolts 19 so as to be rotatable about a bobbin rotation axis. . A leaf spring 8 bent in a "<" shape as an urging member for clamping the bobbins f and f '
Are provided in the engaging portion 5 along the bending of the fixed arm 3 and the movable arm 4 through the leaf spring mounting groove 3c of the fixed arm 3 shown in FIG. In the middle of the movable arm 4, the engaging portion 5 and the bobbin holder mounting position (bolt 18)
Has a bent portion that is convex inward. The leaf spring 8 is attached to the movable arm 4 and the fixed arm 3 by fixing means such as screws so that the leaf spring 8 does not come off from both arms.

Each of the fixed arm 3 and the movable arm 4 of the cradle 1 is formed by sheet metal processing, thereby facilitating formation of a bent portion and change in shape.

In FIG. 2, when the yarn Y unwound from the yarn supply package 9 enters the inside of the spindle 10, tension is applied to the yarn Y, and the yarn Y is below the spindle 10 so that the yarn Y is twisted for the first time. Of the rotating disk 11 is rotated by the driving force of the driving motor 12. Further, a balloon guide 1 is used so that the yarn Y is ballooned and twisted for the second time.
3 are provided. A guide roller 14 located above the balloon guide 13 bends the yarn path to adjust the winding angle of the yarn Y around the feed roller 15. The feed roller 15 is driven by a drive motor (not shown). The traverse guide 16 above the feeder 15 reciprocates to traverse the yarn Y wound on the winding package P. The take-up drum 17 in contact with the take-up package P is for rotating the take-up package P. As a result, the yarn Y is wound on the rotating winding package P.

In the cradle 2 shown in FIG. 1, the movable-side bobbin holder A and the fixed-side bobbin holder B provided on the movable arm 4 and the fixed arm 3 are irrespective of the length of the bobbin such as long and short. One unit 1 can also be used for winding, and bobbins f and f ′ are sandwiched so as to be fitted. Bobbin support portions 6a, 6b (7a, 7
When the bobbin f (f ') is clamped in b), the leaf spring 8 is for biasing the opposing bobbin holders A and B in a direction (inward) to approach.

The ends of the fixed arm 3 and the movable arm 4 are as shown in FIGS. 3 and 4, and are provided so that the movable arm 4 becomes movable with respect to the fixed arm 3. Engagement part 5
In this case, the engaging hook 4a and the engaging groove 4b at the end of the movable arm 4 engage with the end of the fixed arm 3 and the engaging groove 3b, respectively. The engagement hook 3a is engaged with the end of the movable arm 4 to prevent the two arms from being detached. FIG. 5 shows a state in which the two arms 3 and 4 are engaged with each other at the engaging portion 5.

When installing and removing the bobbin, the bobbin f
In order to open the movable arm 4 until the distance between the bobbin holder A and the bobbin holder B becomes longer than the length (f '), as shown in FIG.
The side wall 3d of the engaging groove 3b of the fixed arm 3 and the outer wall 4c of the movable arm 4 are formed by an inwardly bent portion provided between the movable arm 4 and the mounting position of the bobbin holder A. Means that an angle .theta. Is formed at the engaging portion 5 so that a gap .delta. Is formed so that the movable arm 4 can move around the engaging portion 5 with the side wall 3d of the engaging groove 3b and the movable arm. 4 is swingable in the opening direction until the outer wall 4c contacts the outer wall 4c. FIG. 6 is an enlarged view of the periphery of the engaging portion 5.

The leaf spring 8 as an urging member is opened by urging the movable arm 4 inward so that the cradle 2 clamps both ends of the bobbin f while the bobbin f is being clamped. Prevents wobbling in the direction. Further, the outer side wall 4c of the movable arm 4 and the corner of the outer side wall 3d of the engaging groove of the fixed arm 3 abut linearly by the inward bias of the leaf spring 8, and the movable arm The inner side wall portion 4d of the arm 4 and the corner portion of the inner side wall portion 3e of the engaging groove of the fixed arm 3 have a slight gap, whereby the cradle 2 with respect to the bobbin f Clamping force works. The bobbin f is removed from the contact between the outer side wall 4c of the movable arm 4 and the corner of the outer side wall 3d of the engagement groove of the fixed arm 3 due to the inward bias of the leaf spring 8. It becomes a stopper to the inside when it is hit. This prevents fluctuation in the closing direction,
The bobbin f is held at a regular position.

When the yarn P is wound up and the package P becomes full, the movable arm 4 is mounted on the short bobbin f ', and the bobbin mounted on the movable arm 4 side. The movable arm 4 is opened in the opening direction against the urging force of the leaf spring 8 until one end of f 'is disengaged from the short bobbin support 7a on the movable arm 4 side. Then, while holding the position of the movable arm 4 open, one end of the bobbin f 'on the fixed arm 3 side is detached from the bobbin support portion 7b on the fixed arm 3 side, so that the full package -Remove the jig P.

If the full package is a package P of a long bobbin f, the movable arm 4 is connected to one end of the bobbin f mounted on the movable arm 4 side by a long bobbin supporting portion 6a. Let go. The short bobbin support portion 7a on the movable arm 4 side, which has entered the inside of the cylinder of the long bobbin f, is completely discharged to the outside, and one end of the bobbin f on the fixed arm 3 side is fixed to the fixed arm 3. From the long bobbin supporting portion 6b on the side of the side. The movable arm 4 is opened in the opening direction against the urging force of the leaf spring 8 until the short bobbin support portion 7b of the fixed arm 3 which has entered the inside of the cylinder of the long bobbin f is completely discharged to the outside. The full package P is removed by opening. In this case, the movable arm until the distance between the short bobbin support portion 7a on the movable arm 4 side and the short bobbin support portion 7b on the fixed arm 3 becomes longer than the length of the long bobbin f. 4 will be opened.

Therefore, when the bobbin f is being held,
The movable arm 4 is preliminarily bent at an angle θ from the right angle to the fixed arm 3 and between the outer wall surface 4c of the movable arm 4 and the side wall 3d of the groove 3b of the fixed arm 3. Have a gap δ. When the movable arm 4 is opened, the opening angle can be secured outside by the gap δ provided by the bending angle θ, so that the movable arm 4 is moved longer than the length of the long bobbin f. It can be opened until the distance between the short bobbin support 7a on the arm 4 side and the short bobbin support 7b on the fixed arm 3 becomes long. Thereby, the short bobbin support portion 7 on the movable arm 4 side from inside the cylinder of the long bobbin f.
a can be completely detached, and the end of the long bobbin f can be easily attached and detached without being caught on the short bobbin support portion 7b even on the fixed arm 3 side.

Since the movable arm 4 can be widely opened by an amount corresponding to the angle .theta.
When a new empty bobbin f (f ') is mounted on the cradle 2 after the full package is removed, contrary to the above, even if the empty bobbin is a long bobbin f, the full package is removed. As in the case of removing the P, both ends of the bobbin f can be easily attached to the long bobbin support portions 6a and 6b without hooking the long bobbin f on the short bobbin support portions 7a and 7b.

[0025]

The present invention is configured as described above.
The following effects are obtained.

According to the first aspect of the present invention, the movable arm and the fixed arm are each provided with a groove for engagement, and the two arms are formed.
By fitting the grooves for engaging the arms, the pins and other peripheral members required for the conventional connection are not required, and the structure of the connection portion is simplified, so that easy and inexpensive manufacturing is possible. At the same time, the projections of the two arms caused by the formation of the grooves can prevent the two arms from separating.

According to the second aspect of the present invention, one of the movable arm and the fixed arm is provided at the engaging portion of the two arms when the package is clamped. The other arc
The package has a sharp angled inward engagement with the arm, and has an inwardly convex bent portion between the engagement portions of both arms and the bobbin holder mounting position, thereby clamping the package. In doing so, the side wall of the movable arm and the corner of the engaging groove of the fixed arm come into contact with each other to prevent the movable arm from wobbling and to clamp the package at a regular position. it can. Furthermore,
When the package is attached or detached, the movable arm can swing freely in the opening direction around the engaging portion where both arms engage until the movable arm forms a right angle with the fixed arm. Since the opening angle of the movable arm can be expanded as compared with the case where the arm does not have the bent portion, the full bobbin can be taken out from the cradle of the long bobbin and the empty bobbin can be mounted. Can be easily performed.

According to the third aspect of the present invention, the cradle holds the bobbin by providing a leaf spring for urging the movable arm inward at the engaging portion of the two arms. At this time, the cradle holds the urging force of the bobbin, suppresses the wobble of the movable arm due to the gap of the engaging portion, and can hold the bobbin in a proper position. It is possible to reduce the capacity of the member.

[Brief description of the drawings]

FIG. 1 is a front view showing a cradle according to the present embodiment.

FIG. 2 is a front view showing a double twisting machine having the cradle shown in FIG. 1;

FIG. 3 is a perspective view showing an end of the cradle on a fixed arm side.

FIG. 4 is a perspective view showing a movable arm side end of the cradle.

FIG. 5 is a perspective view showing an engagement portion between a movable arm and a swing arm in the cradle.

FIG. 6 is an enlarged view showing an engagement portion between a movable arm and a swing arm in the cradle.

[Explanation of symbols]

 2 Cradle 3 Fixed arm 3b Engagement groove 3c Leaf spring mounting groove 4 Movable arm 4b Engagement groove 5 Engagement part 6a, 6b Long bobbin support part 7a, 7b Short bobbin support part 8 Plate spring 9 Yarn feed package 12 Drive motor A Movable bobbin holder B Fixed bobbin holder P Package Y Yarn f Long bobbin f 'Short bobbin δ Distance of gap θ Angle

Claims (3)

[Claims] A take-up device having a movable arm that can be opened and closed with respect to a fixed arm, and a cradle that holds both ends of the bobbin so as to hold both ends of the bobbin with bobbin holders attached to both arms. A winding device, wherein a groove for engagement is formed in each of the movable arm and the fixed arm, and the grooves for engagement of the both arms are fitted to each other. 2. One of the movable arm and the fixed arm, when the package is clamped, has an inner side with respect to the other arm at an engaging portion of the two arms. The winding device according to claim 1, wherein the winding device has an acute angle engagement with the armature, and has a bent portion that is convex inward between the engagement portion of both arms and the bobbin holder mounting position. 3. The winding device according to claim 1, further comprising a leaf spring for urging the movable arm inward at an engagement portion between the two arms.