JPH0431259Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention twists the selvage yarn to form a selvage structure, and is used in a selvage weaving device of a loom that holds the weft yarn between both selvage yarns. This invention relates to a device that maintains the reliability of attaching a selvage bobbin to a bobbin holder when replacing the bobbin.

(Prior art) In the selvage weaving device of a loom, in order to hold the weft threads by the selvage threads, the selvage threads are wound around a pair of bobbins in addition to the ground warp beam, and the bobbins are diametrically opposed with a phase of 180°. It is mounted on a rotating drum. As the rotating drum rotates, the selvage threads are twisted, and the ends of the weft threads inserted between the selvage threads are held.

This selvage weaving device is equipped with an abnormality detection device to detect abnormal conditions such as cutting of the selvage yarn or decrease in tension (for example, Utility Model Application No. 56-107886), and stops operation if an abnormality is detected. I try to do that.

In such a device, when attaching a selvage bobbin to a bobbin holder attached to a gear on a rotating drum, after inserting the selvage bobbin into the bobbin holder, a pin is passed through the bobbin holder and the shaft of the selvage bobbin. , and the head of the pin is pressed by a spring to prevent the pin from slipping out of the bobbin holder.

(Problem that the invention aims to solve) Even if the head of the pin is pressed down with a spring in this way, due to an installation error during work, the pin may come off while the machine is running, the selvage thread bobbin may come off, and the selvage may twist. There were cases where the equipment was damaged.

(Means for solving the problem) Therefore, in the present invention, no matter how the selvage bobbin is set, if there is an abnormality in the attachment of the pin stopper that presses the pin for attaching the bobbin, this will be immediately detected. I made sure to stop the machine. That is, a slide guide with an entry/exit path is provided on the side surface of the bobbin holder in the diametrical direction facing the rotating drum, and a pin stopper having a bending spring part in the middle that can enter and exit the slide guide is fitted into the slide guide. One end of this pin stopper has a feeler contact end that also serves as a contact element that contacts the operating feeler that activates the electric contact in the event of an abnormality, and a pusher that pushes the pin stopper toward the bobbin axis when the bobbin is inserted normally. A pin pressing portion for pressing the head of the bobbin mounting pin is formed at the end.

(Function) Since the present invention has the above-mentioned configuration, when installing the selvage thread bobbin on the bobbin holder of the selvage weaving device, place the selvage thread bobbin at the mounting position of the bobbin holder, and insert the pin through its axis. do. At this time, to prevent the pin from coming off, press the head of the pin with the pin pressing part of the pin stopper fitted with the slide guide to prevent the pin from coming out.

At this time, the bending spring part of the pin stopper moves toward the bobbin axis along the slide guide, and its position is fixed by the rigidity of the bending spring part, and one end of it presses the head of the pin, which is the bobbin axis. .

If for some reason the pin stopper is not fully attached to the selvedge bobbin, that is, if the pin is not held down sufficiently, the pin stopper will rotate and move outward along the slide guide, causing the pin to stop before the pin comes out. Then, its end comes into contact with the operating feeler for stopping the loom, immediately stopping the loom and preventing damage to the selvedge weaving device.

(Example) The present invention will be explained based on FIGS. 1 to 4 in which the present invention was implemented. In the figure, 1 is a selvedge weaving device, which is disposed on the loom table to face the left and right sides of the warp, and 2 is a rotating drum with meshing teeth formed on its circumferential surface. It is driven by a drive gear 6 fixed to a rotating shaft 5 of a pulley 4 that rotates in synchronization with the rotation of the loom.

The rotating drum 2 has a fixed support shaft (not shown) in the center thereof, and a sun gear 7 is fixed to this fixed support shaft by well-known means. meshing planetary intermediate gear 8;
A planetary gear 9 is provided, and this rotating drum 2
A pair of bobbin holders 10, which are provided with a phase of 180°, that is, facing each other in the diametrical direction, are connected to the planetary gear 9.
It is made to rotate as one. This sun gear 7
The ratio of the number of teeth between the planetary gear 9 and the planetary gear 9 is 2:1.
Therefore, every time the sun gear 7 rotates once, the bobbin holder 10 also rotates once. This bobbin holder 10 has a selvage thread bobbin 11.
is rotatably supported by a pin 12, and a pin stopper 13 is provided to prevent the pin 12 from protruding to the side.
I try to hold it down.

That is, on the outer surface of the bobbin holder 10, on the rotating drum 2, a slide guide 14 having an entry/exit path in the diametrical direction facing the selvage bobbin 11 is fixed, and the slide guide 14 has a bending spring part 13a in the middle, and A pin pressing part 13b serving as a shaft presser for the bobbin mounting pin 12 at one end, and a feeler contacting part 13 at the other end.
A pin stopper 13 equipped with c is fitted into the slide guide 14 so that it can enter and exit.

The outer contact end 13c of this pin stopper 13 pushes the pin 12 of the bobbin shaft into the pin pressing portion 1.
3b is not pressed correctly, it serves as a contact to notify the operating feeler 15 of the abnormality, and also as a pusher to push the pin stopper 13 itself toward the pin 12 side when normally attaching the selvage bobbin 11. An actuation feeler 15 operated by an electrical contact 16 is fixed to the case of the selvage device 1 with a bolt 17 so as to be adjustable in the vertical direction.

Since the present invention has the above-mentioned structure, the bending spring part 13a of the pin stopper 13 is fitted into the slide guide 14 which has an entrance/exit path, and the pin 12 of the bobbin shaft is properly pressed by the pressing part 13b which is the end of the bending spring part 13a. is pressed, the feeler contact end 13c which is the other end of the pin stopper 13
does not come out from the bobbin holder 10, does not come into contact with the operating feeler 15 during operation, and continues to rotate normally.

However, for some reason, the pressing part 13a of the pin stopper 13 is now stuck on the pin 1 of the bobbin shaft.
2 is not pressed, at the same time, the feeler contact end 13c on the other end side protrudes outward from the bobbin holder 10 by the amount of positional deviation from the pin 12, and this part contacts the operating feeler 15 and generates electricity. The machine is stopped by actuating the target contact 16.

(Effect of the invention) As described above, according to the present invention, in the unlikely event that a mistake is made when attaching the selvedge thread bobbin to the bobbin holder, the feeler contacting end of one end of the pin stopper will always be placed on the outside of the bobbin holder. It protrudes to the outside of the selvedge weaving device, contacts the feeler connected to the electrical contact fixed outside the loom, and stops the loom.
Phenomena such as pins falling out or bobbin displacement do not occur,
Damage to the selvedge weaving device can be prevented in advance.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the selvage bobbin mounting device according to the present invention, Fig. 2 is a schematic front view thereof, and Fig. 3 is a pin of a bobbin shaft inserted into a slide guide and mounted on a bobbin holder by a pin stopper. A schematic side sectional view showing the state, FIG. 4 is - in FIG. 3.
It is a diagram showing a cross section. 2...Rotating drum, 7...Sun gear, 9...Planetary gear, 10...Bobbin holder, 11...Earth thread bobbin, 12...Pin, 13...Pin stopper, 13a...Bending spring portion, 13b... ...Pin pressing part, 13c...Feeler contact end, 14...Slide guide, 15...Operation feeler.

Claims (1)

[Scope of utility model registration request] A rotating drum that rotates in synchronization with the loom has a pair of selvedge yarn bobbins provided diametrically opposed to each other, and the rotation of the rotating drum twists the selvedge yarn from the double selvedge yarn bobbin to insert the weft. In a selvage weaving device that holds a weft yarn between both selvedge yarns, a slide guide having an entrance/exit path in the diametrical direction facing the selvage yarn bobbin is provided on the side of a bobbin holder that holds each selvage yarn bobbin, and this slide guide A selvage thread bobbin attachment in a selvage weaving device of a loom, characterized in that a pin stopper is provided, which has a bending spring portion in the middle that moves in and out of the loom, and has a pin pressing portion and a feeler contact end formed at both ends thereof. Device.