JPS5859166A - Winder device - Google Patents

Abstract

PURPOSE:To have a winder with simplified construction by opposing the tension of a wire to No.1 and No.3 spring forces and by controlling the processes from pinching of the bobbin to its release only with tension control of wire. CONSTITUTION:A center shaft 16 which puts a slider 8 held by a rotary shaft 12 having a firction disc 11 facing a drive disc 3 in engagement with the drive disc 3 while retaining the bobbin 18 at the rotary shaft 12 slidably being pressed by No.1 spring 27 is installed slidably pressed by No.2 spring 28, and a thread guide 24 and a cutting part 26 are furnished at the retainer 22 coupled with the wire, where the retainer 22 is pressed by No.3 spring 29 to be fitted slidably on the slider 8, and the springs 28, 29 are set weaker than the one 27 to provide an opposing wire tension between 27 and 29. Thereby pinch and centering alignment of bobbin and cutting of thread can be made by slackening the wire while retraction of the friction disc at the early stage of thread winding and retraction of the slider after completion performed by tensing the wire.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a thread winding device for winding thread onto a bobbin, and the invention relates to a thread winding device for winding thread onto a bobbin.
The purpose of this invention is to provide a thread winding device that improves the winding appearance and eliminates troubles caused by the end of the thread popping out from the bobbin at the beginning of winding.

In this invention, a rotating shaft having a friction disk at the tip is rotatably fitted into a slider which is biased toward a drive disk by a first spring and is held slidably. The shaft is prevented from rotating and is slidably fitted while being biased toward the drive disk by a second spring weaker than the first spring, and further holds a thread guide and a cutting section for cutting the thread. The holder is urged toward the drive disk by a third spring weaker than the first spring, and is slidably fitted into the slider, thereby reducing the tension of the wire connecting the wire supply section and the holder. By countering the forces of the first and third springs and, therefore, letting out the wire, the slider, the holder, the rotating shaft, and the center shaft are advanced by the force of the first spring, and the center shaft is moved to the center of the bobbin. At the same time, the center shaft is engaged with the center of the drive disk to center the bobbin, and the wire is fed out to advance the slider. At this time, the center shaft moves forward, but due to interference with the drive disk, the center shaft compresses the second spring and retreats relative to the rotating shaft. By setting the force to be weaker than the force of the third spring, the backward movement of the slider is restricted, and then the wire is let out and the holder is advanced by the force of the third spring, cutting the thread from the cutting point and winding it around the thread. The starting end is formed and the thread guide is positioned on the outer periphery of the bobbin, so that the bobbin is held between the drive disk driven by the motor and the friction disk of the rotating shaft and rotates together with the center shaft and the rotating shaft. During the rotation at the beginning of winding, the wire is pulled to maintain the center shaft in the extended state, while maintaining the state in which the rotational force of the drive disk is transmitted to the bobbin via the center shaft. Slightly move the slider and rotating shaft back, separate the friction disk from the bobbin and the cutting end at the beginning of winding the thread,
Therefore, the cut end of the thread is wound into the bobbin, and at the end of winding, the wire is further pulled to move the slider, holder, rotating shaft, and center shaft back to release the bobbin.This operation is performed continuously, but the thread is Since the cut end at the beginning of winding is reliably rolled into the bobbin, the winding can be finished beautifully.It also eliminates troubles caused by the cut end of the thread popping out of the bobbin, making it easier to unwind the wire. It is constructed so that it can be obtained by an extremely easy structure that only controls the operation.

An embodiment of the present invention will be described based on the drawings.

Opposing frames (1) and (2) are provided.

One frame (1) K supports a drive disk (3) and a pulley (4) that connects the drive disk (3) to a motor.

The driving disk (3) K is attached with a sheet (5) made of an elastic material. Further, a centering hole (6) serving as a centering portion is formed in the center of the drive disk (3).

Next, a cylindrical holder (7) is attached to the other frame (2).
The holder (7)K has a cylindrical shaft-shaped slider (8) which is held in a slidable manner while being prevented from rotating. That is, a groove αq is formed along the axis on the outer periphery of the slider (8) to engage with a pin (9) driven from the Holter 7). The slider (8) has a rotating shaft (C) having a friction disk C1υ facing the drive disk (3) at its tip, which is prevented from moving in the axial direction while bearing α
4 and is rotatably held. A sheet (lla) made of an elastic material is attached to the friction disk aη.

Furthermore, a center shaft 00 having a groove (to) that fits into a bottle Q4 driven from the outer periphery of the rotary shaft o4 is fitted to the tip of the rotary shaft (2) so as to be able to slide freely in the axial direction while being prevented from rotating. are combined. This center axis QQ has a protruding end αη which is a centering portion that aligns with the centering hole (6) K of the drive disk (3).
and a shaft portion which is fitted into the hole H of the bobbin o8 with a predetermined frictional force.

Furthermore, a groove Q1 extending in the axial direction is formed at the tip of the slider (8). Then, insert the pin 4 driven into the groove from the outer periphery of the ring-shaped holder (a) fitted to the tip of the slider (8). Holding body (2) by engaging with η
is held slidably while being prevented from rotating relative to the slider (8). This holder (C) has a thread guide (goods) made by bending the wire while forming a vertically long ring, and a cutting part (heat wire (c)) which has a large electrical resistance and becomes red hot when energized and cuts the thread (c). is maintained.

The slider (8) is connected to the first spring (a).
The center shaft OQ is urged by a second spring (c), and the holding body (a) is urged by a third spring fiK. The direction of bias is toward the driving disk (3)K. The force of the first spring (B) is set larger than the force of the second spring (C) and the third spring (4).

A wire supply (1) is then provided. As shown in FIG. 2, this wire supply section (1) is comprised of a cam 0 which rotates in one direction and a swing lever which rotates around a pin 0 pier. One end of the swing lever is joined to the outer periphery of the cam θ, and one end of a wire (c) inserted through the outer cable (b) is fixed to the other end.

The path of this wire (c) is determined by a roller (to), and the tip end thereof is inserted through the frame (2) and fixed to the holder 4. That is, the tension of the wire (c) acts against the forces of the first, second, and third springs.

Next, as shown in FIG. 1, an upper chute 0 for supplying the bobbin α barrel is provided in front of the drive disk (3). Near the upper chute Of), a pair of levers) (A) are connected to the shaft (11) and rotated integrally, and one lever (To) is connected to a spring (6).
It is pulled to rest in a fixed position by a wire (6) against the force of A rod (2) extending toward is rotatably held. These rods are slidably inserted to the side of the upper shoot.

Furthermore, the bobbin α supplied from the upper chute (b)
A bobbin holder that supports the camphor is rotatably provided around the bin. This bobbin receiver is a spring @7)K
Although it is biased more towards one side, it is pulled by the wire and the rest position is determined by the stopper.

Further, a lower chute (K, lower chute) is arranged below the bobbin receiver so as to be inclined downward in the conveyance direction.

The upper opening of the lower chute (2) is widened upward, and a V-shaped recess 6υ is formed at the edge of the opening to position the thread (E) at the center of the lower chute (2).

In such a configuration, each time the wire 9'4 is loosened and then pulled again, the lever (to) (b) rotates back and forth.

In Fig. 1, the clockwise movement causes the rod ■ to advance, support the bobbin, and the rod (to) retreat to drop the bottom bobbin 0 →, and the counterclockwise movement causes the rod ■
Lower the bobbin DI supported by the rod and support it by the rod below. The bobbin DI, which has been dropped from the upper chute Of), is supported by the bobbin supporter).

Then, as the clockwise rotation of the cam 0 force progresses and the rocking cam G rotates clockwise, the wire (to) becomes loose, and the third spring 4 is weaker than the first spring Therefore, even if the slider (8) slides to the right, the third spring blade remains compressed and the holder (2) does not move relative to the slider (8). In this state, as shown in FIG. 5, the tip αη of the center axis ofj is aligned with the centering hole (6) K of the drive disk (3). As a result, the bobbin Q frame is centered.

Then, the wire (c) becomes loose and the slider (8) advances.

As shown in Fig. 6, the friction disk (3) of the rotating shaft Q held by the slider (8) clamps the bobbin Q11 together with the drive disk (3), and the thread (c) is held on the left side of the bobbin Q8. It is clamped and fixed between. At this time, since the advancing position of the center shaft QQ is limited in the process shown in FIG. 5, the slider (8) and the rotating shaft (
Slide to the left relative to 11. That is,
The second spring wire is weaker than the first spring (2) and maintains a state in which the friction disk αυ is elastically connected to the bobbin QeK.

Furthermore, the wire (to) is loosened, and the holding plate (e) is advanced to the right by the force of the third spring. As a result, as shown in Figure 7, the hot wire (c) cuts the thread wound around the bobbin H on the lower thread, and the thread guide is held on the center shaft. Guide the thread (E) around the outer circumference of the bobbin. In this state, the rotation of the motor is transmitted from the drive disk (3) to the bobbin DI via the center axis a0, thereby winding the fourth material onto the bobbin Ql.

Then, immediately after starting to wind up the fourth in this way,
Shear wire 0→ by operation of cam 0ρ and swing lever (to)
, the holding body (2) is retracted to the left as shown in FIG. 8, and the slider (8) is retracted to the left together with the rotating shaft (6). The amount of operation at this time is within the range in which the friction disk Ql) separates from the bobbin (g) without retracting the center axis α. Even in this state, the bobbin a pass receives the rotational force from the driving disk (3) via the center axis OQ and winds the thread (e), so that the winding end (25a) of the thread (c) is
is gradually drawn in as the fourth winding operation progresses and is completely wound up between the winding layers of the bobbin H.

With this pressure, when the thread winding work is completed, the motor stops, and on the other hand, the wire (c) is pulled by the rotation of the cam G, and the slider (8) is moved to the rotating shaft α2 and the holder (c) in the state shown in FIG. A) and slide to the left with center axis Q.
Q comes out of bobbin Q groan. At this time, as shown in FIG. 9, the bobbin Q can be easily removed from the center axis α0 by attaching a holding piece υ that holds the bobbin tilting flange ffl to the frame (1) or the like. When the wire is loosened in this state, the bobbin holder rotates counterclockwise around the pin (in Figure 1) as a fulcrum, and the bobbin (Is falls into the lower chute) in one direction. However, since the direction of downward inclination is the same as the direction in which the thread (E) is wound, the thread (C) wound on the bobbin 0EHC fits into the recess 6η and becomes tense, and the tension causes the bobbin 0EHC to wind. to remain stopped. In other words, the thread (c) wound on bobbin 01m
will not be loosened by feeding. In this way, the tensioned thread (E) is cut by the hot wire (C) by the next advancing motion of the slider (8), and at this time, the bobbin Q [lG] rolls on the lower chute ■ in a predetermined direction. . Even during this transfer, the bobbin CIl rotates in the direction of winding the thread (C).

In this way, when centering the bobbin DI, clamping the bobbin (g), cutting the thread (e), and starting winding the thread (e). Advancement of the thread guide (goods), retreat of the friction disk (11) to wind in the cut end (25a) at the beginning of winding of the thread (c), release of the bobbin (11) after winding is completed, etc. These series of operations are wired (
C) The structure can be simplified and the operation can be performed reliably by controlling the tension only. In addition, since the cut end (25a) of the thread (2) is completely wound around the bobbin 4, it will not be caught in the middle when the bobbin (A) rolls on the lower chute (2). This is not K, shoot below.
It is possible to prevent the thread (E) from becoming unraveled when the bobbin is transferred by setting the width of the thread to a size that does not create a gap between the bobbin DI and the bobbin DI.

As described above, this invention includes a slider holding a rotating shaft having a friction disk facing a driving disk, which is biased toward one side by a first spring so as to be slidable, and a bobbin is held on the rotating shaft. A center shaft that engages the drive disk while being biased by a second spring is provided so as to be able to slide freely, a holder connected to the wire is provided with a thread guide and a cutting part, and this holder is connected to a third spring. The second and third springs are set to be weaker than the first spring, and the tension of the wire is opposed to the first and third Nosfrings. By loosening the wire, the center shaft can center the bobbin, clamp the bobbin, and advance the holder to guide the thread and cut the thread. Also, by tensioning the wire, the bobbin can be centered, the bobbin can be clamped, and the thread can be cut by tensioning the wire. The friction disk can be retracted from the bobbin at the initial stage, and the slider can be retracted to the starting position after winding is completed. In this way, the process from clamping to releasing the bobbin can be achieved simply by controlling the tension of the wire. The structure can be simplified by controlling
This has the advantage of being able to eliminate troubles caused by the incisal end popping out from the bobbin.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view, FIG. 2 is a side view, and FIG. 3 is an exploded view showing the fitting relationship between the slider, rotating shaft, center shaft, and holder. Perspective view, 4th
Figures 8 through 8 are longitudinal sectional side views showing the process of thread winding operation;
FIG. 9 is a partial plan view. 3... Drive disk, 6... Centering hole (centering part), 8...
・Slider, 11... Friction disk, 12... Rotating shaft,
16... Center axis, 17... Tip (centering part), 18
...Bobbin, 20...Shaft portion, 22...Holding body, 2
4... Thread guide, 25... Thread, 25a... Cut end,
26... Hot wire (cutting part), 27... First spring, 28... Second spring, 29... Third spring, 30... Wire supply part, 35... Wire Applicant: Sabun Kogyo Co., Ltd.

Claims (1)

[Claims] A drive disk having a centering portion formed in the center is connected to a motor so as to be freely rotatable, a rotating shaft having a friction disk facing the drive disk with a bobbin in between is provided, and this rotating shaft rotates. A slider held at any position is provided so as to be slidable while being biased toward the drive disk by a first spring, and a centering part that engages with the centering part and a shaft part that holds the bobbin are formed. A center shaft is provided, and this center shaft is fitted to the tip of the rotating shaft so as to be slidable while being prevented from rotating and biased toward the drive disk by a second spring that is weaker than the first spring. A third spring weaker than the first spring causes the drive disc to rotate while preventing the slider from rotating a holder that holds a thread guide that guides the thread around the outer circumference of the bobbin and a cutting section that cuts the thread. One end of the wire is connected to the wire supply part and the other end of the wire is fixed to the holder, and the force of the first and third springs is applied to the wire. A thread winding device characterized by opposing tensions.