JPS60244760A - Punch winding device of yarn winder - Google Patents

Abstract

PURPOSE:To keep a yarn and a yarn collecting guide from rubbing against each other and to prevent the yarn from generating fluff by transversely running the yarn not to engage with the yarn collecting guide, that is, not to locate the yarn collecting guide within the traverse range. CONSTITUTION:While a yarn Y1 is once regulated by a push lever 8 in such a manner that the yarn Y1 and a traverse guide 10a do not engage with each other, the yarn is guided to a bunch winding position by a yarn collecting guide of a yarn collecting portion 6, and wound in a bunch. After that, the yarn is guided along yarn guides 7, 9 to a position not to engage the yarn collecting guide, and started to run transversely. Accordingly, after the start of transverse running, the yarn can be wound without hindrance to running of the yarn to keep the yarn to be wound from generating fluff, and furthermore prevent poor release of a package caused by the generation of fluff.

Description

[Detailed description of the invention] do.

In a yarn winding machine, when starting to wind yarn onto a bobbin supported by a bobbin holder, punch winding is usually performed.

The above-mentioned punch winding is usually performed using a thread shifting device. That is, before the yarn and the traverse guide engage with each other and start traversing, the yarn is guided out of the traverse range by a yarn guide located upstream of the yarn from the traverse device,
This involves punch winding the bobbin.

Conventionally, some of the above-mentioned thread shifting devices move linearly in the longitudinal direction of the bobbin holder while the thread shifting guide remains in a protruding state. According to this device, if the thread guide is present within the traverse range, it will come into contact with the thread and rub against it, so the guide is moved from outside the traverse range where punch winding is performed to outside the other traverse range. However, since the moving speed of the traverse guide is much faster than the moving speed of the above-mentioned guide, the yarn is traversed while rubbing against the guide until the guide finishes moving out of the traverse range. This may cause fluff to form on the yarn being used, or the threads may be unraveled poorly in areas where they rubbed against each other when packaged.

The present invention has been made to solve the above-mentioned problems, and the present invention will be explained below based on the drawings.

FIG. 1 schematically shows the front of a yarn winding machine to which the present invention is applied. Yarn that is continuously supplied from above (
Y) is between two slide boxes (1) (2) (3
) and are each wound onto a plurality of bobbins (B) inserted into the bobbin holder (4). The slide boxes (1) and (2) are supported by a support (not shown) and are movable up and down.

A friction roller (5) is supported by the slide box (1) on the left side of FIG. 1, and the friction roller (5) is always in contact with the surface of the yarn layer of the bobbin (B).
The bobbin (B) is driven to rotate.

Further, the slide box (1) is provided with a thread shifting section (6) which will be described later.

The slide box (2) on the right side of Figure 1 has the first
Thread guide (7), push lever (8), second thread guide (
9) and the traverse family @ (10) are provided.

The pushing lever (8) is swingable in the direction of the arrow (11) by a cylinder (not shown) or manually about the fulcrum (8a). Further, the push rod (8b) of the push lever (8) extends over the entire area of the plurality of bobbins (B). The two-dot chain line shows the state when the yarn is pushed in.

In the traverse device (10), the yarn (Y) is traversed by a traverse guide (10a) that runs within the traverse range.

(12) indicates a thread hooking device. When threading the empty bobbin (B), the multiple thread hanging arms (13) are moved to one side, and each arm (13) is
), thread the thread through the guide (15), return each arm (13) to a position corresponding to the slit position of each empty bobbin, and tilt each arm (13) (as shown by the two-dot chain line). Hook the thread onto the empty bobbin (B).

Next, the structure of the thread pulling section (6) will be explained based on FIGS. 2 to 4.

Attach the guide holders (17a) to (1) to the guide bar (16).
7cl) are screwed on, and the holders (17a) to (1
7d), thread guides (18a) to (18d) are respectively inserted. The thread guide (18a) to (1
The guide holder is screwed (19) onto the guide bar (16) so that the intervals 8d) are equal.

One end of the connecting lever (20) is rotatably supported at one end of the guide bar (16) on the right side in the figure (21).
The other end of the lever (20) is rotatably supported by a bracket (22) (23). The bracket (
22) is screwed (25) onto the slider (24). The slider (24) is hollow, and a slide shaft (26) is inserted into the hollow, and the slider (24) is slidably supported by a slide bearing (27). Both ends of the slide shaft (26) are screwed onto the support brackets (28) (29,).
30) It has been done. The other end of the guide bar (16) on the left in the figure also has a connecting lever (31), a bracket (32), a slider (33), a slide shaft (34) and a support bracket ( 35) (36) is provided. An L-shaped stop lever (37), which is a tab member, is screwed (38) onto the slider (33). Further, the tip of a piston rod (40) of a cylinder (39) is rotatably supported (41) at one end of the connecting lever (31). The cylinder (3
9) is rotatably supported at one end by a shaft (42). The slider (33) and the slider (24) have two
The side bar (43) that connects the two sliders is screwed (4
4) (45) has been done. The side bar (43) is urged in the direction of arrow (47) by a spring (46).

(48) (4g) is a sheet, and the guide bar (1
6) slides on the sheet (48) (4'g).

(9a) to (9d) indicate the second yarn guide, and the end surface (50) of the guide coincides with the extreme end position of the traverse range (T). Moreover, (S) has shown the slit provided in each bobbin (13). Note that in FIG. 2, the position of the bobbin (B) is originally a little higher in the figure than the illustrated position, but for convenience it is shown in the lower part of the figure.

Next, the operation of the present invention will be explained in order based on the drawings.

As shown in FIG. 1, threading is performed with the pushing lever (8) shown by the two-dot chain line protruding.

The running of the threaded thread is indicated by (Yl), and the thread (Y
l) is pushed into a position where it does not engage with the traverse guide (10a).

Next, use the air sucker (14) to guide each thread hook (15)
The yarn is passed through the arms (13), and each arm (13) returns to a position corresponding to each empty bobbin (B). Thread guide (18a)
- (18d) are located at the two-dot chain line position in Fig. 2, that is, at a position where they do not come into contact with the pushed yarn (Yl), and even if the yarn (Yl) moves due to the movement of each arm (13), The guides (18a) to (18d) do not come into contact with the yarn (Yl).

Next, the thread guides (18a) to (18d)
The yarn is moved from the two-dot chain line position to the solid line position in the figure to guide the yarn out of the traverse range (T). In other words, the yarn moves from (Yl) to (Y2).

Next, the push-in lever (8) moves back and reaches the solid line position in Figure 1, and the yarn tries to pass through the shortest distance, so it moves along the left end surface of each of the yarn guides (18a) to (18d) in Figure 2. Moving. In other words, the thread is (Y3) rather than (Y2).
Move to. Place the bobbin (B) on the left end face extension of the above guide.
) is located at the slit (S).

Next, as shown in FIG.
The thread is captured. Since the empty bobbin (B) is rotationally driven by the friction roller (5), winding of the yarn starts at the same time as the yarn is caught in the slit (S).

Next, the thread guides (18a) to (18d)
The thread moves to the position indicated by the two-dot chain line in the figure, and since the thread tries to pass through the shortest distance, it moves along the second thread guide (9) and the first thread guide (7), not shown.

In other words, the movement of the thread is from (Y3) to (Y4) and (Y
A punch winding of the yarn is formed in the range from 3) to (Y4). Note that the first thread guide (7) is the second thread guide (9) located in front of the second thread guide (9) in FIG.
) is isomorphic. When reaching the end face (50) of the thread guides (7) (9), the thread moves along the end face (50). In other words, the yarn moves from (Y4) to (Y5). The yarn then engages the traverse guide (10a) and the traverse begins.

Next, regarding the operation of the thread pulling section (6), see Figures 5 to 7.
This will be explained based on the diagram.

Figure 5 Niha, thread guide (18a) ~ (18cl)
shows the state before guiding the yarn. When guiding the yarn outside the traverse range by the yarn shifting guides (18a) to (18d), air is supplied to the cylinder (39) by an air supply source (not shown), and the cylinder (39)
)'s piston rod (40) advances from inside the cylinder (39). The advancing of the piston rod (40) causes the connecting lever (31) to rotate in the direction of the arrow (52) about the shaft (51). Along with the rotation, the guide bar (16) also moves, and due to the movement of the guide bar (16), the connecting lever (20) on the right side of the figure also moves in the direction of the arrow (53).
) direction.

As shown in FIG. 6, when the contact piece (54) fixed to the end face of the guide bar (16) contacts the threaded lever (37), the two connecting levers (20) ('
31) stops rotating.

Next, as the piston rod (40) advances further, the guide bar (16) moves the stop lever (37
) to slide the slider (33) to which the stop lever (37) is fixed along the slide shaft (34) in the direction of the arrow (55).

Since the slider (33) and the slider (24) on the right side of the figure are connected by a sidebar (43), the slider on the right side (33) synchronizes with the sliding movement of the slider on the left side (33).
24) also slides along the slide shaft (26).

The two sliders (24) and (33) slide against the force of a spring (46). The slider (24
) (33), the thread guide (18a) ~(
18d) moves in parallel in the direction of arrow (56), and all movement stops when the stop lever (37) comes into contact with the stop piece (57). (Illustrated in Figure 7) Through the above operations, the thread guides (18a) to (
], 8d) first protrude in the direction of the push-in lever (8), then move in the direction of the arrow (56) to move the respective thread guides (
The yarns corresponding to 18a) to (18d) are guided outside the traverse range (T), that is, to the punch winding position.

After guiding the yarn to the punch winding position, the piston rod (40) retreats into the cylinder (39) by lowering the air pressure in the cylinder (39), and as the rod (40) retreats, the yarn Shifting guide (18a) ~ (1
8d) returns to the position shown in FIG. 5, following the same trajectory as the one that guided the thread to the punch winding by the force of the spring (46).

FIG. 8 shows another embodiment of the thread shifting section. Slide shirt l-(
59) is inserted, and the slider (58) is supported by a slide bearing (not shown) so as to be slidable in the left-right direction in FIG.

Both ends of the slide shaft (59) are screwed onto support brackets (60) and (61).

The slider (58) has elongated holes (62) (63), and pins (65) (66) embedded in the guide bar (64) are provided in the elongated holes (62) (63). ) are inserted respectively.

The guide bar (64) has thread guides (67a) (6
7b) are fixed at equal intervals (two in the figure). Further, the tip of the piston rod (69) of the cylinder (68) is rotatably supported (70) at an arbitrary location on the upper surface of the guide bar (64). The cylinder (68) is rotatably supported at one end.

With the above configuration, when the screw (69) advances, the pins (65) (66) installed in the guide bar (64) move along the inside of the long holes (62) (63). The guide bar (64) moves in the direction of the arrow (72) so that the guide bar (64) moves in the direction of the arrow (72). When the pins (65) (66) reach the ends (73) (74) of the elongated holes (62) (63), the movement of the guide bar (64) in the direction of the arrow (72) is stopped and the guide bar (64) stops moving in the direction of the arrow (72). (64) is a slider (58)
and moves in the direction of arrow (75). The movement ends when the slider (58) abuts the support bracket (60).

As explained above, according to the present invention, the thread is first regulated to a position where the thread does not engage with the traverse guide using the push lever, and then the thread is guided to the punch winding position by the thread shifting guide and punched. After forming the winding, the yarn is guided along the yarn guide to a position where it does not engage with the yarn shifting guide, and traverse running is started. Therefore, the yarn can be wound without interfering with the yarn running after the traverse has started, and the yarn to be wound will not have fuzz, and the package will not unravel due to the fuzz. Eliminate all defects. Furthermore, the thread shifting guide that guided the yarn to the punch winding position moves back in the direction away from the traverse guide, so the thread catching is in contact with the yarn that moves as the guide moves. do not. Therefore, even when the thread is threaded, there is no occurrence of fuzz or thread breakage. Furthermore, since the thread shifting guide can be set to have a sufficiently long movement distance in the axial direction of the bobbin, the thread shifting guide can reliably engage the thread, thereby eliminating thread shifting errors.

[Brief explanation of drawings]

FIG. 1 is a schematic front view of a yarn winding machine to which the punch winding device of the present invention is applied, FIG. 2 is a plan view of the punch winding device of the present invention, and FIG. 3 is a line A-A in FIG. 2. Cross section, 4th
The figure is a cross-sectional view taken along the line B-B, FIGS.
The figure is a plan view showing another embodiment of the thread shifting section. (6) - Thread guide (7) (9) Thread guide (8) Push lever (10a)
Traverse guide (18a) ~ (18d) (67a)
(67b) -=- Thread guide ([I)...
Bobbin (T)... Traverse range (Y)...
・Yarn

Claims (1)

[Claims] A pushing lever that is swingable in a direction to remove the yarn from the traverse guide, and a pushing lever that is provided upstream of the thread from the pushing lever and that protrudes in the direction toward the pushing lever and moves in parallel in the axial direction of the bobbin. The present invention is characterized by being provided with a thread shifting section equipped with a thread shifting guide for moving the thread pushed by the lever out of the range of the drum pulse, and a thread guide for positioning the thread moved by the thread shifting section and the pushing lever. A punch winding device for a yarn winding machine.