JPS61197375A - Bobbin supporting apparatus for thread taking-up machine - Google Patents

Abstract

PURPOSE:To take out a full package from a supporting lever by holding the full package onto a bobbin supporting lever and lowering a cradle arm in turn and maintaining the engagement state of the bobbin supporting lever with a stop lever. CONSTITUTION:When a bobbin is made full, arms 1a and 1b are attached onto a roller 16 by upwardly raising cradle arms 1a manually, and the pins 13a and 13b of the bobbin supporting levers 4a and 4b are positioned at the stage parts 11a and 11b of the stop levers 7a and 7b. The bendable part 1a'' of the arm 1a is turned a little around a shaft 23 by outwardly opening the bendable part 1a'' manually, and the stop piece 33 installed onto the fixed part 1a' of the arm 1a is projected and attached onto the stage part 34 of the bendable part 1a'', and then the bendable part 1a'' can be held at the opened state. Therefore, the engagement between a bobbin B and the bobbin holders 41 and 41b rotatably supported onto the arms 1a and 1b by the shafts 40a and 40b is released, and the doffing of a package P is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bobbin support device in a yarn winding machine used in a winder, spinning device, false twisting device, etc.

[Conventional technology]

In unwinding devices used in winders, spinning machines, false twisting machines, etc., a package consisting of yarn wound around a bobbin is supported by a pair of cradle arms from both sides, and the package is removed from the cradle arms. When setting an empty bobbin between the cradle arms, one of the cradle arms is bent in the middle to create a space between the two cradle arms, but when removing a wound package, the cradle arm If one hand is used to operate the package, the other hand must be used to support the package being removed.

This is hard work for a false twister package that weighs up to 1ONy, and for example, in the winding section of a false twister, many weights are arranged vertically and horizontally.
Coupled with the fact that the space in the winding section per spindle is extremely narrow, it was thought that this would create a danger when removing the package or installing the bobbin.

Therefore, a winding device has been developed in which a bobbin support member is integrated with the cradle arm to receive the removed package when the package supported by the cradle arm is removed, but the positional relationship between the bobbin support member and the cradle arm is However, when removing the bobbin, I could not say that it was easy to use.

[Problem 1 to be solved by the invention: When removing a heavy full package from a cradle arm, it is necessary to manually open one of the paired cradle arms,
It is possible to support a heavy package with both hands without being hindered by the cradle arm, without having to carry out laborious and dangerous tasks such as supporting and removing a package supported between cradle arms with the other hand. The purpose is to provide a device for safely and easily doffing.

[Means for solving the problem] A pair of cradle arms are supported on a cradle arm support shaft, and a pair of bobbin support levers are supported on the cradle arm shaft so that they can rotate independently of the cradle arm. When the bobbin support lever is raised, the cradle is moved so that the pin as an engaging member that engages the cradle arm and the bobbin support lever comes into contact with the bobbin support lever so that the bobbin support lever can also turn as the cradle arm is raised. provided on the arm, and when the bobbin support lever is in the raised position, provided on the bobbin support lever,
A stop lever having a stepped portion that engages with a fixed pin serving as a second engaging member is provided so as to be swingable and biased so as to always come into contact with a pin provided on the bobbin support lever. The cradle arm is provided with means for pivoting a stop lever in order to disengage the pin serving as the second engagement member from the stepped portion.

[For production]

When the pair of cradle arms that support the package at both ends are raised when the package is fully wound, the pair of bobbin support levers are also swiveled and raised as the cradle arms rotate, and are at the end of the raising position. The bobbin support lever engages with the stepped portion of the stop lever, which is provided so that a pin, which is an engagement member of the bobbin support lever, is always urged to abut the pin.

At this position, one of the pair of cradle arms is bent to open the gap between the cradle arms, and when the one-volume package is released from the cradle arm, the full-volume package falls onto the bobbin support lever and is held by the bobbin support lever. After the full package is held on the bobbin support lever,
The cradle arm is rotated in the opposite direction to the above and lowered, but the bobbin support lever remains engaged with the stop lever, so it remains raised. Then, hold the full package from both sides (at this time, the cradle arm is lowered as described above, so it does not interfere with the package removal operation) and remove it from the bobbin support lever.

〔Example〕

In the apparatus of the present invention, a pair of cradle arms 1a and 1b are used as means for supporting the package P. The cradle arms 1a and 1b are fixedly supported by cradle arm support shafts 3 provided on opposing substrates 2a and 2b. Further, a pair of bobbin support levers 4a and 4b are supported on the shaft 3 so as to be able to freely rotate relative to the same shaft 3. A pin 38 is installed in the cradle arms 1a, 1b, and when the cradle arms 1a, 1b rotate, the pin 38 comes into contact with the lower edges of the bobbin support levers 4a, 4b, and as the cradle arms 1a, 1b rotate, the bobbin The support levers 4a, 4b also pivot.

A pair of guide levers 5a, 6b and a pair of stop levers 7a, 7b are attached to the substrates 2a, 2b by shafts 5, respectively.
support. The guide levers 6a, 6b and the stop levers 7a, 7b have side edges 6°a', 6a'', 5b' in an arc shape centered on the cradle arm support shaft 3.
, 5b'', 7a', 7a''.

7b', 7b". 8 is the stop lever 7a
, 7b, and both stop levers 7a.

A spring 9 is passed between the shaft 7b and the shaft 5, and the stop levers 7a and 7b are always biased to rotate counterclockwise in FIG. 1 (and vice versa in FIG. 2). A fixed bin 10 is provided at the top of the stop lever 7a, and a side edge 7a' at an intermediate position between the stop levers 7a and 7b is provided.
, 7b' are provided with upwardly facing step portions 11a and 11b. Springs 12a, 12b are placed between the tops of the guide levers 6a, 6b and the substrates 2a, 2b, so that the guide levers 6a, 6b pivot in the clockwise direction in Figure 1 (in the opposite direction in Figure 2). to energize. Bobbin support levers 4a, 4
A stop lever 7a is located inside b.

The stop lever 7 comes into contact with the side edges 7a″ and 7b″ of the stop lever 7b.
The fixed bins 138 and 13b that lock onto the step portions 11a and 11b of the bobbin support levers 4b and 7b when sliding are fixed.
A fixing pin 15 located inside a long groove 14 of the cradle arm 1b, which will be described later, is provided inside the cradle arm 1b. Reference numeral 16 denotes a roll placed between the guide levers 6a and 6b.

Concave grooves 20a and 20 are formed in parts of cradle arms Ia and 1b.
a spring 21a with one end fixed in the groove;
The other end of 21b is fixed to one end of dogleg-shaped brake pieces 22a and 22b. The brake pieces 22a, 22b are pivotally fixed to the cradle arms 1a, 1b, and their tips are attached to the side edges 6a'', 6b'' of the guide levers 6a, 6b with springs 21a.
, 21b. The cradle arm 1a is divided into a base portion 1a' at its intermediate portion and a bendable portion 1a'' at the tip, which are connected by a shaft 23 so as to be able to bend each other.The bendable portion 1a of the cradle arm 1a
An operating lever 24 is slidably provided at ``.The operating lever 24 is biased by a spring (not shown) to move leftward in FIG. 1, and has a pressing piece 25 at its base.

The tip of the pressing piece 25 is engaged with the stepped portion 26, and the operating lever 27 is pivoted to the bendable portion 1a'' of the cradle arm 1a.

A block 30 is attached to the fixed portion 1a' of the cradle arm 1a, and has a rectangular sliding piece 31 projecting inward. Also, a stop piece 3 is attached to the block 30 and is biased by a spring 32 in a direction protruding from the block 30.
3 is slidably inserted. The stop piece 33 is in contact with the stepped portion 34 of the bendable portion 1a'' of the cradle arm 1a when the stop piece 33 is at maximum protrusion.A plate member 36 is fixed to the bendable portion 1a'' of the cradle arm 1a (FIG. 8).
A spring 37 in a small hole provided in the base 1a' of the cradle arm 1a comes into contact with the tip of the block 30, and urges the base 18' and the bendable portion 18'' to form a straight line. The sliding piece 31 of the block 30 is also provided on the cradle arm 1b, and the sliding piece 31 of the block 30 is attached to the side edge 6b' of the guide lever 6b.
is in contact with.

Now, assume that the package P is in contact with the friction roller 35 in the state shown in FIGS. 1 and 2, and the winding diameter is increasing as the friction roller 35 rotates.

As the diameter of the package P increases, the cradle arms 1a and 1b move the sliding pieces 31 to the guide levers 5a and 5b.
Spring 12a, 12b is attached to the side edges 5a', 5b' of
The bendable portion at the tip is rotated in the upward direction while being pressed by the elastic force of the guide lever 6a, and at this time the sliding piece 31
, 6b's side edge 6a'.

6b' and the support levers 4a, 4b are connected by the pin 38 to the cradle arm 1a.

It turns along with the turning of 1b.

When the bobbin is fully wound, the operator manually lifts up the cradle arm 1a from the state shown in Figs. 13b is located at the stepped portions 11a and 11b of the stop levers 7a and 7b, and FIG.
The state shown in Figure 4 is reached.

Next, as shown in FIGS. 5, 6, 8, and 9,
By manually opening the bendable portion 1a'' of one cradle arm 1a outward, the bendable portion 1a'' of the cradle arm 1a slightly pivots about the shaft 23. At this time, the stop piece 33 attached to the fixed part 1a' of the cradle arm 1a protrudes by the force of the spring 32 and comes into contact with the stepped part 34 of the bendable part 1a'', so that the bendable part 1a'' is in the open state. Hold. The bent portion 1a'' is biased in the closing direction by a spring 37. This causes the shaft 40a to be attached to the cradle arms la and 1b.

Bobbin holders 41a, 4 rotatably supported by 40b
1b and bobbin B are disengaged, and both ends of bobbin B are supported by bobbin support levers 4a and 4b.

Next, by lowering the cradle arm 1a by hand, the state shown in FIGS. 5 and 6 is achieved. At this time, the bobbin support levers 4a and 4b are connected to their pins 13a.

13b is the stepped portion 11a of the stop levers 7a, 7b.

Since it is supported on 11b, it does not descend. Further, the cradle arms 1a, 1b maintain the illustrated posture by abutting against the upper end of a long groove 14 formed in the cradle 1b on one side.

In this state, the operator grips both ends of the bobbin B with both hands and doffs the package P.

Next, move a new empty bobbin B to the bobbin support levers 4a, 4.
cradle arm 1a.

1b to the position shown in FIGS. 3 and 4, and press the end of the operating lever 24 with your finger. With this, the 8th
As shown in the figure, the pressing piece 25 at the end of the operating lever 24 pushes and turns the operating lever 27, which is pivoted to the cradle arm 1a, from the two-dot chain line position to the solid line position, and the operating lever 27 further pushes the stop piece 33 Push against the elastic force of the spring 32 to the solid line position to remove the stop piece 33 and step part 34.
The bendable portion 1a of the cradle arm 1a
'' returns to its original closed position by the elastic force of the spring 37, and the bobbin holders 41a and 41b clamp and support both ends of the bobbin 8.At the same time, the pressing piece 25 presses the fixing pin 10 of the stop lever 7a, which causes the bobbin to close. support lever 4a,
4b pin 13a.

13b and step portions 11a, 11 of stop levers 7a, 7b
b is disengaged. Then, by manually pushing down the cradle arm 1a as shown in FIG. 7, the empty bobbin B comes into contact with the fliximin roller 35, and winding is restarted.

〔effect〕

When installing the present invention, when removing the 4-volume package from the cradle arm, move the full package to the bobbin support lever with the cradle arm in the raised position, and leave the package in the raised position and remove only the cradle arm. Since the package can be removed after being lowered, the cradle arm does not get in the way of the work to remove the package, and the worker does not have to place one hand on the cradle arm as in the past. Since the bobbin can be held with both hands, the workability is good and the work is safe and easy.

[Brief explanation of the drawing]

Figures 1 and 2 are views of the two cradle arms seen from the inside in the normal winding state, and Figures 3 and 4 are the state in which the cradle arms are lifted up by the worker after vA spring rolling. FIG. 5 is a diagram showing the. Figure 6 is a diagram showing the state when doffing, Figure 7 is a diagram showing the state when an empty bobbin is attached and winding is started, Figure 8 is a diagram showing the opening rji structure of one cradle arm, and Figure 9 is a diagram showing the state when doffing. This figure corresponds to a sectional view taken along the line IX--IX in FIG. 8, and shows the cradle arm in an open state. FIG. 10 is an enlarged view of a part of FIG. 3. P...Package, B...Bobbin, 1a
, 1b...cradle arm, 3...cradle arm support shaft, 4a, 4b...bobbin support lever, 6a. 6b...Guide lever, 7a, 7b...
Stop lever, 11a, 11b... stepped portion,
13...fixing pin, 24...operating lever, 25...pressing piece. 38...Pin Patent Applicant Murata Machinery Co., Ltd. Representative Patent Attorney Katsu Ohno Rei Ohno Figure 8 Figure 10

Claims (1)

[Claims] A pair of cradle arms are supported on the cradle arm support shaft, and a pair of bobbin support levers are supported on the cradle arm shaft so that they can pivot independently of the cradle arm, and when the cradle arm is raised, the bobbin support levers are supported. In order to enable the lever to turn as the cradle arm is raised, a pin as an engaging member for engaging the cradle arm and the bobbin support lever is provided on the cradle arm so as to abut against the bobbin support lever, so that the bobbin support lever At the above position, the bobbin support lever has a
A stop lever having a stepped portion that engages with a fixing pin as a second engaging member is provided so as to be swingable and biased so as to always come into contact with a pin provided on the bobbin support lever; A bobbin support device for a yarn winding machine, in which a cradle arm is provided with means for pivoting a stop lever for disengaging a pin as a second engagement member from a stepped portion.