JPH08382Y2 - Yarn storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Prior Art] In recent years, the spinning speed has been increased in order to increase the productivity of the spinning machine, and the amount of yarn stored during the yarn splicing operation increases.
Therefore, a yarn storage device as described in JP-A-53-134943 has been proposed.

[Problems to be solved by the device]

In the above yarn storage device, since the yarn suction tube is folded in multiple layers, the air resistance at the 180 ° bent portion becomes large and a high suction static pressure is required. In addition, since the pressure changes at the bent portion, the yarn tension changes stepwise. Further, there are problems that the bending of the pipe is very difficult and the operation of removing the thread block in the pipe is difficult.

〔Purpose〕

A first object of the present invention is to detect the degree of accumulation of waste thread in the joint member and to observe the running state of the thread in the suction tube.

The second purpose is to facilitate the work of removing the thread waste accumulated in the joint member.

In order to achieve the above-mentioned first object, the yarn accumulating device of the present invention has one end connected to a negative pressure duct through a joint member, and sucks the yarn from the opened other end to guide the yarn into the pipe. The suction pipe that stores the threads has a cross-sectional shape that has a yarn running path at least in the lower part and is formed into a substantially rectangular shape in the vertical direction, and the suction tube is horizontally moved with a predetermined radius of curvature. In the U-shaped storage device, the joint member is formed in a substantially box body, and the wall surface facing the intake port of the connected suction pipe is formed of a transparent plate.

In order to achieve the second purpose, the transparent plate is detachable.

〔Example〕

The configuration of one embodiment of the yarn storage device of the present invention will be described with reference to the drawings.

The yarn storage device 1 is formed by a suction pipe 2, a joint member 3, a connecting pipe 4, and the like.

In the suction pipe 2 described above, the suction port 2b at one end of the passage 2-1 is fitted to the joint member 3 and the other end is open to the atmosphere.
2a is formed. The cross-sectional shape of the passage 2-1 is substantially rectangular in the vertical direction as shown in FIG. 4, and the supply-side yarn passage 2-2 and the withdraw-side yarn passage 2 are substantially circular.
-3, the two yarn passages 2-2 and 2-3 are narrower in width than the yarn passage, and are connected by a slit 2-4 through which the yarn can pass sufficiently. Has become. Further, as shown in FIG. 3, the tube 2 has a width dimension of about 3 times or more, preferably 5 times the width dimension of the drawing-side yarn passage 2-3.
It is bent in a U shape in the horizontal direction with a radius of curvature (R) more than twice.

When the above-mentioned radius of curvature (R) is set to 3 times or less, the resistance of the bent portion, the pressure fluctuation, etc. are almost the same as those of the conventional one, and the bending work of the pipe is difficult. If the radius of curvature (R) is tripled or more, the resistance of the bent portion, pressure fluctuation, etc. can be reduced. When the radius of curvature is 5 times or more, the bending process becomes very easy, and the resistance of the bent portion, the pressure fluctuation, etc. can be almost eliminated.

The above-mentioned joint member 3 is made of synthetic resin, synthetic rubber or the like, and as shown in FIG. 5, a hole 3-1 for inserting the suction tube 2 and a connecting tube 4 are inserted. Hole 3-2 for opening and opening 3 for forming a viewing window
3 is drilled. Further, in the opening 3-3, glass,
Alternatively, the groove 3 for fitting the transparent plate 6 of synthetic resin or the like
-4 is formed. The hole and the opening are in close contact with a pipe or the like to maintain airtightness, and the shape and
Hardness is required, and in particular, the fitting groove portion of the transparent plate 6 needs to be flexible so that the transparent plate 6 can be easily attached and detached.

One end of the connecting pipe 4 is fitted into the joint member 3 and the other end thereof is fitted into the negative pressure duct.

The yarn storage device 1 described above is installed in a spinning machine as shown in FIG.

That is, the yarn accumulating device 1 is installed below a drawing roller 10 that delivers a yarn spun from a yarn forming device (not shown) at a predetermined speed, and a yarn breakage occurs below the yarn accumulating device 1. Yarn from the draw-out roller 10 and the winding device 12
The knotter 11 for splicing the yarn from is installed. Then, the yarn sent from the pull-out roller 10 is sucked at the suction port 2a of the suction tube 2 and becomes a U-shape, and the supply-side yarn passage 2
-2, slit 2-4, passage 2 of the drawing side yarn passage 2-3
It is stored in -1.

That is, the yarn runs along the suction air flow in the supply-side yarn passage 2-2 located above the suction port 2a of the suction tube 2. Then, the folded portion has a substantially U-shape, and the slit 2
-4, and then is drawn out in the drawing-side yarn passage 2-3 against the suction air flow and wound up by the winding device 12.

Since the bending radius of the bent portion of the suction pipe 2 is large, the air resistance can be made almost the same as that of the straight pipe portion, and the yarn tension can be made uniform without lowering the suction force. , The yarn moves smoothly in the passage. Further, since tension does not change in the bent portion, snare does not occur even when the yarn reciprocates in the bent portion.

In addition, the joint member 3 can be directly inserted through the sight window with the transparent plate 6 fitted therein.
The inside can be seen, and the transparent plate 6 can be removed from the groove 3-4 by deforming the fitting portion of the transparent plate 6 of the joint member 3. Further, when illuminated with a flashlight from the viewing window, the inside of the passage 2-1 is illuminated and the running state of the yarn inside the suction port 2a can be seen.

[Effect of device]

The yarn storage device of the present invention has one end connected to a negative pressure duct through a joint member as in claim 1, and sucks the yarn from the opened other end to store the yarn in the pipe. Tube
A storage device having a cross section of a yarn running path at least in the lower part, formed in a substantially rectangular shape in the vertical direction, and a suction tube bent in a U shape in the horizontal direction with a predetermined radius of curvature. In the above, since the joint member is formed in a substantially box body and the wall surface facing the intake port of the connected suction tube is formed of a transparent plate, it is possible to easily confirm the accumulation degree of the thread waste in the joint member. can do. Even when the suction tube is opaque, the running state of the yarn can be observed by looking into the suction port side with the light directed toward the transparent plate.

Further, since the transparent plate is detachable as in the second aspect, the thread waste removing operation can be easily performed only by removing the transparent plate.

[Brief description of drawings]

FIG. 1 is a schematic front view showing one embodiment of the yarn storage device of the present invention. FIG. 2 is a schematic side view, and FIG. 3 is a schematic plan view. FIG. 4 is a schematic perspective view showing details of the passage of the suction pipe in FIG. FIG. 5 is a schematic view showing a cross section of the joint member in FIG. FIG. 6 is a schematic view showing one embodiment of a spinning machine equipped with the yarn storage device of the present invention. 1: yarn storage device, 2: suction pipe, 3: joint member, 4: connecting pipe, 5: negative pressure duct, 6: transparent plate,

Claims (2)

[Scope of utility model registration request] 1. A suction pipe, one end of which is connected to a negative pressure duct through a joint member, and which sucks a yarn from the opened other end and stores the yarn in the pipe, has a sectional shape of at least a lower portion. In the storage device, which has a yarn running path and is formed in a substantially rectangular shape in the vertical direction, and the suction tube is bent in a U shape in the horizontal direction with a predetermined radius of curvature, A yarn accumulating device which is formed in a substantially box-like shape and has a wall surface facing a suction port of a suction pipe connected to the transparent plate. 2. The yarn storage device according to claim 1, wherein the transparent plate is detachably attached.