JPH0258194B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is intended for use in a yarn conveying line using peg trays during the spinning process, to open the yarn necessary for doubling or twisting in the next process. The invention relates to a device for

FIG. 15 to FIG. 19 show an example of a conventional automatic spinning tube yarn feeder. 1 in the figure is a pezgu tray, and this pezgu tray 1 has the 18th
As shown in the figure, an air hole 1a is formed that penetrates from the bottom surface toward the top end. 2 is a bobbin that can be fitted into the peg tray 1 and connected integrally;
A is its hole. 3 is a tube yarn that has undergone a spinning process, and in the case of FIG. 17, it is shown wound around a bobbin 2. 4 (see Fig. 15) is a rail for conveying the peg tray 1, and the peg tray 1 is guided by the rail 4 by a conveyor belt (not shown) provided in the rail 4 as shown by arrow A in Fig. 15. sent to. Reference numeral 5 denotes a turret for moving the tray provided overlapping with the rail 4. When the tray 1 sent along the rail 4 fits into the recessed notch 5a provided in the lower disk of the turret 5, the turret 5 It rotates one step at a time in the direction of arrow B by intermittent feeding at regular intervals.

That is, the pipe bobbin b integrated with the tray 1 is the 15th
When the position shown in the figure is reached, a rotary cutter device 6 as shown in FIG. 16 is provided at this position. 6a is a ring-shaped cutter body made by cutting a cylinder to an appropriate width;
A large number of intake holes 6b are formed in a. The cutter body 6a is rotated at high speed by a motor 6c (see FIG. 15) via a belt 6d. 6e is a clamper provided so as to be in sliding contact with the outer periphery of the cutter body 6a, and 6f is a fixed cutter that prevents the lead thread 3 from being wound around the cutter body 6a. Further, 6g is an intake port communicating with the inside of the cutter body 6a, and is connected to a suction hose 6h shown in FIG. 15.

Further, the yarn bobbin b, which has come to the position shown in FIG. 15, is moved to the position shown in FIG.
Rotate as shown by arrow C in the figure. That is, 7a in FIG. 17 is a driving roller that comes into pressure contact with the outer periphery of the tray 1, and 7b and 7c are driven rollers.

Therefore, while the thread bobbin b rotates in the direction of arrow C at the position of
Since it faces the rotary cutter device 6 which rotates in the direction of , the tail yarn of the tube bobbin b is unwound and cut at an appropriate position, and the cut waste yarn is sucked into the suction hose 6h. Ru.

Then, after a predetermined period of time has elapsed, the turret 5
is again rotated by one step in the direction of arrow B, so that the thread bobbin b is rotated from the position to the position shown in FIG. . This is the direction in which the lead thread 3 is wound around the bobbin 2.

Then, when the predetermined time has elapsed again, the turret 5 rotates by one step in the direction of arrow B.
The yarn bobbin b is rotated from the position to the position. At this position, as shown in FIG. 15, an intake pipe 8 having a slit 8a capable of sucking the tail thread of the pipe thread 3 is provided connected to a suction hose 8b, and the pipe thread bobbin b which has come to the other position is connected to the suction hose 8b. is the 17th
It rotates in the direction of arrow C via a rotary drive device 7 as shown in the figure. This rotation is in the direction in which the tail thread of the tube thread 3 is unraveled, so that the tail thread described above is in the slit 8.
The air is sucked into the intake pipe 8 through a.

Then, after a predetermined period of time has elapsed, the turret 5 again rotates one step in the direction of the arrow B, and the yarn bobbin b moves from the position to the position shown in FIG.

Therefore, the thread 3 sucked into the intake pipe 8 through the slit 8a engages with the thread detection sensor 9 built into the cutter, and the cutter 9
cut by a. Also, at this position,
Since the peg tray 1 is superimposed on the suction port 10 as shown in FIG. 18, the cut thread 3 is attached to the top hole of the bobbin 2 as shown in FIG.
It is sucked in from a and the mouthing is completed.

After a predetermined period of time has elapsed, when the turret 5 rotates one more step, the tray 1 of the yarn bobbin b is again mounted on the belt conveyor of the rail 4 and conveyed in the direction of arrow A.

(Problems to be Solved by the Invention) As mentioned above, in the conventional pipe thread pulling device, the pipe threads are sent one after another at regular intervals, regardless of whether the threads are pulled out successfully or unsuccessfully, so the cycle time is statistically Unless a sufficient margin of time is taken into account, it is difficult to maintain the rate of misleads at a desirable level, and there is also a problem in that there is a lot of waste of thread waste, electric power, jetted air, etc. Furthermore, since the rotary cutter and suction mouth are separated into two stations, the structure is not only complicated, but also the conveyance direction is horizontal, so floor space is required for storage of yarn and recirculation of missed yarn. In addition, maintenance work is difficult because parts that are close to the floor must be repaired in a very cramped position, unlike the tray conveyor of conventional equipment. There was a problem.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a conveyor belt for conveying a tube bobbin fitted in a peg tray having air holes, and a A portal type suction cylinder through which the provided pipe bobbin can pass, a rotary cutter provided at one base of the suction pipe for unwinding and cutting the tail thread of the pipe thread, and a rotary cutter located at a position opposite to the rotary cutter. A stopper for stopping the incoming pipe bobbin, a rotation drive device for the pipe bobbin, an intake device connected to the other base of the gate-shaped intake cylinder, a slit provided on the inner surface of the intake cylinder, and a sensor having a cutter that detects a pipe thread drawn into the suction cylinder and cuts the thread;
The bobbin is equipped with a feeding auxiliary device provided on one side of the bobbin at the feeding position, a timer for activating the feeding auxiliary device within a set time, and an intake port provided on the rail of the peg tray adjacent to the feeding position; When the sensor detects that the thread has been successfully threaded, the stopper is immediately released based on the signal, the thread bobbin is moved to the suction port, and the thread is sucked from the top hole of the bobbin. After the timer operates the pick-up auxiliary device for a certain period of time, the stopper is released and the pipe bobbin is moved one by one, thereby configuring the automatic spinning pipe thread pick-up device.

(Function) As described above, the device of the present invention is provided with a sensor having a cutter that detects when the lead thread drawn into the intake cylinder is pulled toward the intake side and cuts the lead thread. The stopper is released in response to the lead-out detection signal, and the yarn bobbin is moved above the suction port. Therefore, as soon as the lead-out of the yarn is detected, the yarn bobbin can be moved immediately, even if a certain period of time has not elapsed as in the conventional method. can be sent out. Therefore, according to the present invention, the efficiency of the threading operation is significantly improved, the amount of thread waste is reduced, and
It also reduces power and blast air usage.

Furthermore, since the device of the present invention has a rotary cutter and a suction mouth in one place, it has a simple structure and is easy to manufacture, and the entire device has a vertical structure that utilizes twisting conveyance. This reduces installation space and facilitates maintenance and inspection work.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In the figure, the same reference numerals as those mentioned above indicate equivalent parts.

FIG. 1 shows the overall structure of the device of the present invention.
In the figure, 11 is a vertical frame installed on the floor, 1
2 is a control box provided at the lower front of the frame 11;
3 is a T-shaped frame plate protruding above the frame 11; 14 is this frame plate 13;
A rail for conveying peg trays is arranged horizontally along the upper side of the peg tray, and 15 is a main conveyor belt provided within this rail 14. That is, this rail 14 is stretched between, for example, a spinning machine (not shown) and a yarn doubling machine (not shown), and the pipe bobbin b, which has completed the spinning process in the spinning machine, is transported along with the peg tray 1 as shown by arrow F. The pipe bobbin b, which has been conveyed to the center of the present invention and spouted by a spouting device of the present invention to be described later, is again placed on the rail 14, conveyed in the direction of arrow G, and fed into a doubling machine.

Then, in order to introduce the pipe bobbin b from this rail 14 into the pick-up device of the present invention and to place the picked-out pipe bobbin b on the rail 14 again, a pipe bobbin b is placed on the upper front surface of the frame plate 13 and the frame 11. A torsion conveying device H is provided.

This torsion conveying device H utilizes the tube bobbin conveying device disclosed in Japanese Patent Application No. 61-22089 (Japanese Unexamined Patent Publication No. 62-180882) previously filed by the present applicant. The transmission system using the belt is as shown in Figure 2, where 16 is a conveyor drive pulley driven by motor _M1 (see Figure 1), 17 is four driven pulleys, and 18 is two driven pulleys. The guide roller 19 is a flat conveyor belt. That is, by rotating the conveyor drive pulley 16 in the direction of arrow I, the conveyor belt 19 moves in the direction of arrow J.

FIG. 3 is a diagram showing the principle of torsional conveyance. Reference numeral 20 denotes an elastic guide that holds the protrusion 1a of the peg tray 1 and presses the bottom surface of the peg tray 1 against the conveyor belt 19.
9, the peg tray 1 and bobbin 2 are twisted and conveyed as shown in FIGS. 4a, b, c and 5.

In this embodiment, as shown in FIG. 1, a portal-shaped suction cylinder 21 is provided on the front surface of the frame 11, through which the yarn bobbin b with the peg tray 1 conveyed by the conveyor belt 19 passes. This gate type intake cylinder 2
1 is a hollow rectangular cylinder formed into a substantially gate shape, and a substantially cylindrical rotary cutter housing 22 is provided at one base of the housing 2.
A rotary cutter 23 for unwinding and cutting the tail thread of the pipe thread 3 is provided inside the pipe thread 2.

As shown in FIGS. 7 and 8, 23a is a rotary cutter body, and this rotary cutter body 23a is formed into a hollow truncated cone shape, and has a large number of holes 23b distributed on its outer circumferential surface. It has been set up. Also, 23c is the rotary cutter body 23
24 is the shaft of the rotary cutter main body 23a, 25 is the shaft 24
A pulley 26 fixed to the belt is used to rotate the rotary cutter main body 23a at high speed by the motor _M2 shown in FIG.

Further, a stopper 27 (see FIGS. 6c, 9, and 10) is provided at a position facing the rotary cutter 23 to stop the peg tray 1 of the bobbin b conveyed by the conveyor belt 19. . 27a is a shaft that penetrates the frame 11 and is rotatably supported; 27b is an arm fixed to this shaft 27a; 27c is a roller that is pivoted to the free end of this arm 27b; By colliding with the peg tray 1, the peg tray is stopped at that position, and when the arm 27b rotates and the roller 27c is separated from the peg tray 1, the tray 1 is released from stopping. 28 is a rotary solenoid provided on the frame 11 to drive the stopper 27; 28a;
is its shaft, 29 is an arm fixed to the shaft 28a, 3
0 is an arm fixed to the shaft 27a, and 31 is a rod connecting the free ends of the arms 29 and 30.

Further, a rotation drive device 32 is provided for rotating the yarn bobbin b which is stopped by the stopper 27. 32a (see FIG. 8) is a shaft provided rotatably through the frame 11, and 32b is this shaft 32.
This is a drive roller fixed to a, and this roller 32
A urethane ring provided on the outer periphery of the bobbin b is in pressure contact with the lower end 2b of the bobbin 2 of the tube bobbin b. 32c is a pulley fixed to a shaft 32a protruding from the back surface of the frame 11, and 32d is a belt of this pulley 32c, which is driven by a thread bobbin rotation drive motor _M3 shown in FIG.

Further, the other base portion 21a of the gate-shaped intake cylinder 21 is connected to an intake device (not shown) such as a vacuum pump via a suction hose 33 (see FIG. 1).
As shown in FIG. 6b and FIG. 9, a slit 34 is provided on the inner surface of the gate-shaped intake cylinder 21, which continues from the vicinity of the rotary cutter 23 to the vicinity of the other base 21a. A sensor 35 (first
and FIG. 6c) is provided inside the gate-type intake cylinder 21, and the rotary solenoid 28 is actuated by the opening detection signal of this sensor 35, so that the stopper 27 causes the peg tray 1 to be closed.
is released from the stop and the tube and yarn bobbin is moved downward together with the tray 1 by the action of the conveyor belt 19.

As shown in FIGS. 9 and 10, at a position shifted approximately one peg tray downward from the stop position of the peg tray 1 by the stopper 27,
A ring-shaped intake port 36 is provided. This intake port 36 is connected to an intake device (not shown).

Therefore, as shown in FIG. 6d and FIG. 11, when the peg tray 1 is superposed on the suction port 36, since the peg tray 1 has the air hole 1b, 6(e) and FIG. 12), the outside air is more strongly sucked in, so that the lead string 3 cut by the sensor 35 is sucked into the top hole 2a.

In addition, 37 shown in Fig. 6 b, c, d and Fig. 9
is a guide bar that guides the lead thread 3 near the top hole 2a, and as shown in FIG.
It is fixed inside 1.

In addition, if the above-mentioned lead-out is not successful within a certain period of time, after operating the lead-out auxiliary device for a certain period of time, the stopper 27 is released and the thread bobbin b is moved once.
It is moved by a fixed conveyor belt 19.

Reference numeral 38 shown in FIG. 6b and FIG. 9 is a jet injection nozzle as an auxiliary device for ejecting air.If the ejecting is not successful within a certain period of time, air is injected from the nozzle 38 into the heel portion of the pipe thread 3 for a certain period of time. This product is sprayed on the fibers to promote the unraveling of the tail threads.

Further, FIGS. 13 and 14 show a vibration brush 39 as another extraction auxiliary device, and in the case of FIG. 13, the cam 4 is
1 is rotated to vibrate the brush 39 in the direction of arrow K via the cam floor 42 to promote unwinding of the pipe yarn 3. Note that 43 is a return spring.

In the case of FIG. 14, an eccentric pin 47 is rotated by a motor 40 via a pulley 44, a belt 45, and a pulley 46, and a lever 48 integrated with a brush 39 that engages with the eccentric pin 47 is moved around a fixed pin 49 as a fulcrum. and its tip along with the brush 39 as shown by the arrow L.
The unwinding of the thread 3 is promoted by rotating the thread 3 as shown in FIG. Note that 50 is a bearing housing that supports the shaft of the pulley 46.

The related operations between the mechanisms in the device of the present invention described above are performed via electrical circuits,
Since this circuit is well known, its explanation will be omitted.

Next, the operation of the apparatus of the present invention constructed as described above will be explained.

In FIG. 1, the yarn bobbin b, which has been conveyed by the rail 14 in the direction of the arrow F, is transferred to the conveyor belt 19 by the guide 14a, and by the above-mentioned torsional conveyance device using the conveyor belt 19, the yarn bobbin b is conveyed as shown by the arrow F in FIG. Frame plate 1 like M
Drop vertically along 3. When the peg tray 1 comes close to the gate-type intake cylinder 21 as shown in FIG. 6c, the stopper 27 temporarily stops the peg tray 1 and the yarn bobbin b at that position. Therefore, the subsequent tube bobbin b is placed on standby above it. In other words, N in Figure 1
The part becomes the storage part for the tube bobbin b.

The yarn bobbin b shown in FIG. 6a as described above is
reaches the position shown in Fig. 6 b, c and the stopper 27
When the descent is stopped by the rotary drive device 32
The thread bobbin b is rotated in the direction of arrow 0 by the driving roller 32b (see FIG. 8). In this case, the rotary cutter main body 23a (see FIG. 8), which faces the tail thread portion of the bobbin b, rotates at high speed in the direction of arrow P, and a portal-shaped intake cylinder 2
Since negative pressure is acting through the tube bobbin b
As the tail thread is unwound, the tail thread is sucked into the hole 23b of the rotary cutter main body 23a.
Since the suctioned tail yarn is cut between the clamper 23c and the cut end of the pipe yarn 3 and the separated waste yarn are sucked into the portal suction cylinder 21. The pipe thread 3 sucked into the suction cylinder 21 is pulled in the directions of arrows Q and R in FIGS. 6b and 6c, so that the end of the pipe thread 3 passes the sensor 35 After that, the pipe thread 3 that was inside the suction pipe 21 comes out from the slit 34 and enters the sixth
Guide bar 37 and sensor 35 as shown in figure c
It is passed between. When the sensor 35 detects the pick-up yarn 3, the stopper 27 is once rotated upward in response to the detection signal, so that the peg tray 1 and the yarn bobbin b are sent downward by the action of the conveyor belt 19.

In the above-mentioned picking operation, if picking is not successful even after a certain period of time has elapsed, a picking assisting device provided on one side of the bobbin 2 at the picking position is activated by the action of a timer (not shown).
That is, in the cases of FIGS. 6b and 9, air is injected from the jet injection nozzle 38, and in the cases of FIGS. 13 and 14, the vibration brush 39 vibrates to promote unwinding of the tail yarn. Since the operation time of this lead-out auxiliary device is also set to a fixed time by a timer, if the lead-out does not succeed even after the operation of this lead-out auxiliary device, the bobbin is rejected as a failed lead-out bobbin.

The peg tray 1 sent downward as described above is superimposed on the air intake port 36 as shown in FIGS. Air is sucked through the top hole 2a, and the lead thread 3 is cut by a cutter built into the sensor 35. Therefore, a certain length of lead thread 3 is
As shown in FIG. 2, it is sucked into the bobbin 2 through the top hole 2a. In this case, the guide bar 37 functions to guide the lead thread 3 close to the top hole 2a. Then, the yarn bobbin b with the peg tray is pushed by the upper peg tray 1 and moved downward, and is again moved by the conveyor belt 19 as shown by arrows S and T in FIG. It is conveyed in the direction of arrow G by belt 15.

(Effects of the Invention) As described above, the device of the present invention has a sensor that detects when the lead thread 3 sucked into the gate-shaped intake cylinder 21 is pulled toward the intake side and has a cutter that cuts the lead thread. 35 is provided, and the stopper 27 is released by the lead-out detection signal of this sensor 35, and the pipe bobbin b is moved above the suction port 36. Therefore, even if a certain period of time does not elapse as in the conventional case, the pipe thread 3 If the feeding of the yarn is detected, the yarn bobbin b can be immediately fed out. Therefore, according to the present invention, it is possible to obtain the excellent effects of significantly improving the efficiency of the picking operation, reducing the amount of thread waste, and reducing the amount of electric power and jet air used.

That is, as a result of a comparative test between the conventional apparatus and the apparatus of the present invention, the maximum number of pipes processed per minute was 30 for the conventional type and 40 for the apparatus of the present invention.

Furthermore, when calculating the average amount of waste yarn saved per one pipe yarn, the device of the present invention reduced the amount of waste yarn by 50% compared to the conventional type.

Furthermore, when we measured the amount of compressed air consumed and the amount of electricity used, we found that the device of the present invention was 30 times more efficient than the conventional type.
% decrease.

Furthermore, in the device of the present invention, the rotary cutter 23 and the suction mouth of the gate-type intake cylinder 21 are provided in one place, so the structure is simple and manufacturing is easy, and the entire device can be twisted and transported. Since it can be made into a vertical structure, the installation space is reduced and maintenance and inspection work becomes easier.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the overall structure of the device of the present invention;
Fig. 2 is an elevational view showing the transmission system of the torsional conveyor belt, Fig. 3 is a diagram explaining the principle of the torsional conveying device, Fig. 4 a, b, c is an explanatory diagram of its operation, and Fig. 5 is a torsional A perspective view showing the operating state of the peg tray and bobbin during conveyance, FIGS. 6a to 6e are partial perspective views for explaining the operation of the device of the present invention, FIG. 7 is a perspective view of the rotary cutter, and FIG. 8 is a perspective view of the rotary cutter. Figure 9 is a cross-sectional view showing the cutter and rotational drive unit;
Figure 0 is a cross-sectional view of the intake port and stopper shaft.
Fig. 11 is a partial sectional view for explaining the function of the suction port, Fig. 12 is a perspective view of the tip of the thread bobbin, Fig. 13a
14 is a perspective view of a vibration brush, FIG. 14B is a partial plan view thereof, FIG. 14A is a perspective view of another vibration brush, FIG. 14B is a partial plan view thereof, and FIG. 16 is a perspective view of the rotary cutter, FIG. 17 is a perspective view of the peg tray rotation drive section, FIG. 18 is a partial cross-sectional view of the suction port, and FIG. 19 is a perspective view of the tip of the yarn bobbin. FIG. 1... Peg tray, 1b... Air hole, 2... Bobbin, 2a... Top hole, 3... Tube thread (lead thread), b... Tube thread bobbin, 11... Frame, 13... Frame plate, 14... Rail, 15... Main conveyor Belt, H...Torsional conveyance device, 19...Conveyor belt,
20... Elastic guide, 21... Portal intake cylinder, 22... Rotary cutter housing, 23... Rotary cutter, 27... Stopper, 28... Rotary solenoid, 32... Rotation drive device, 33... Suction hose, 34... Slit, 35...Cutter built-in sensor, 36...Intake port, 38...Jet injection nozzle (feeding auxiliary device), 39...Vibration brush (feeding auxiliary device).

Claims (1)

[Scope of Claims] 1. A conveyor belt for conveying a yarn bobbin fitted in a peg tray having air holes, a gate-shaped suction cylinder through which the yarn bobbin is provided while being conveyed by the conveyor belt, and A rotary cutter installed at the base of one side of the suction pipe for unwinding and cutting the tail thread of the pipe thread, a stopper for stopping the pipe bobbin that has come to a position opposite to the rotary cutter, and a stopper for stopping the pipe thread bobbin at a position opposite to the rotary cutter. A rotary drive device, an intake device connected to the other base of the gate-shaped intake cylinder, a slit provided on the inner surface of the intake cylinder, and a slit for detecting and pulling out the yarn sucked into the intake cylinder. a sensor having a cutter that cuts the thread;
The bobbin is equipped with a feeding auxiliary device provided on one side of the bobbin at the feeding position, a timer for activating the feeding auxiliary device within a set time, and an intake port provided on the rail of the peg tray adjacent to the feeding position, When the sensor detects that the thread has been successfully threaded, the stopper is immediately released based on the signal, the thread bobbin is moved to the suction port, and the thread is sucked from the top hole of the bobbin. . An automatic spinning yarn bobbin device, characterized in that the spinning yarn bobbin is moved one by one by releasing the stopper after the leading device is operated for a certain period of time by the timer. 2. The automatic spinning tube yarn pulling device according to claim 1, wherein the rotary cutter main body is formed into a truncated conical shape. 3. The automatic spun yarn feeding device according to claim 1, wherein a portal suction cylinder is provided in the vertical conveyance section of the yarn bobbin fitted in the peg tray by the conveyor belt.