JPH03120162A - Rewinding machine - Google Patents

Abstract

PURPOSE:To guide a thread streak to a tail forming position by constituting a deflection supporting point guide so as to be moved to the upper of the tail forming position in a tube end part, when a tail is formed, while arranging a guide for guiding the thread streak to the tail forming position in the vicinity of a tube in a rewinding position. CONSTITUTION:Since a deflection supporting point guide 11 is placed in the upper (a) of a tail forming position lmm outer from a position of a guide part 16b in a guide plate 16, a thread streak, placed in a condition that it is positioned by the guide part 16b of the guide plate 16, is guided by and rewound to an empty tube 50 with a tail formed. Here the thread streak is slip-dropped by the taper, formed in a tube coating part of a chuck 4 dislocated from the tail forming position A, with the tail surely formed in a preset position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a winding machine for forming a thin thread-wound tube to be supplied to a winding device of a spinning machine.

[Prior art]

Generally, when winding yarn in spinning machines such as open-end spinning machines and binding spinning machines BfR, in order to make the overall structure of the spinning machine compact, no thread hooking device is installed, and a splicing device is used to wind the yarn. Kake is performing the operation. Therefore, instead of supplying an empty tube to the winding device, a thin thread-wound tube with thread wound thereon is supplied so that even after pulling out the thread for splicing, a sufficient amount of thread remains. There is a need.

As a winder for forming the above-mentioned thin thread-wound tube, for example, the one described in Japanese Patent Application Laid-Open No. 1-38380 is used.

The winding machine is installed at approximately the same horizontal position as the winding device installed on the frame of the spinning machine, and has a cradle rotatably attached to a bracket attached to the frame, and a It consists of a driving roller that rotates the empty tube held by the chuck and traverses the yarn, and the driving roller is rotated by an electric motor.

A swing fulcrum guide is installed above the driving roller, and is moved by a drive device to a position above the tail forming position and to a swing fulcrum position. Further, a yarn winding arm is rotatably installed between the swing fulcrum guide and the cradle, and a yarn clamp holder having a cutter is attached to the end of the arm. Then, the yarn winding is carried out by rotating the arm, which grips the end of the yarn pulled out from the package, transports it to the chuck position of the cradle with the position determined by the swing fulcrum guide, and winds the tail. It is supposed to form.

[Problem to be solved by the invention]

In the method described above, in which the yarn is wound around the tube with the swing fulcrum guide moved to a position above the tail forming position, the distance from the swing fulcrum guide to the tube is long, making the yarn path unstable, and the yarn winding Since the yarn is swung around by the arm, the position of the tail formed on the tube will vary, and if the yarn shifts inward and a tail is formed in the traverse area, the tail will be covered by the winding yarn. ,
On the other hand, if it deviates outward, there is a problem in that a tail is formed on the chuck portion that grips the tube.

Furthermore, there is a problem in that the presence or absence of tail formation cannot be confirmed until the end of the yarn winding operation or the inspection of a full package.

〔the purpose〕

The purpose of the invention is to ensure that the tail is formed in a predetermined position.

[Means to solve the problem]

In order to achieve the above-mentioned object, the winding machine of the present invention is a winding machine that forms a thin thread-wound tube to be supplied to a winding device of a spinning machine. A guide configured to move to a position above the forming position, and a guide for guiding the yarn to the tail forming position near the tube at the winding position, and a guide for checking whether the yarn has been wound to the tail forming position. This is a configuration with a detector installed.

Further, the swing fulcrum guide is configured to move outward from the tail forming position at the tube end when forming the tail,
Fit the tube gripping chuck on the tail forming side of the cradle so as to cover the outer periphery of the tube, so that the tip of the covering part is at the tail forming position, and by making the covering part tapered, the tail can be securely held. can be formed.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of one embodiment of a thin thread-wound tube forming mechanism having a winder of the present invention will be described based on the drawings.

The thin thread-wound tube forming mechanism is installed at the off-end section, the gear end section, or both of the spinning machine, and its details are as shown in FIGS. is approximately the same as the winding device (not shown) of a spinning machine.
This is a winding machine of a thin thread-wound tube forming mechanism installed at a horizontal position, and includes a cradle 3 rotatably attached to a bracket 2 attached to a machine stand 35, and the cradle 3.
It consists of a driving roller 6 that rotates an empty tube 50 held by a chuck 4.5 and traverses the yarn, and the driving roller 6 is rotated by an electric motor t17 attached to a bracket 8. .

The above-mentioned chuck 4 has a tube 5 as shown in FIG.
A cutter 4a is bored to cover the outer periphery of the tube 50, and the tip of the cover part 4b of the tube 50 is at the tail forming position, and the cover part 4b is attached to the other chuck side. It is formed into a tapered surface that is slanted in the opposite direction. Also,
The chuck 5 has a fitting part 5 that supports the inner circumference of the tube 50.
a is formed, and the chuck 4.5 of the cradle 3 is installed so as to be on the movement trajectory of the gripper 30 of the doffing device 25, which has the function of supplying the thin thread-wound tube to the winding device of the spinning machine. It is.

A holder 9 is attached to the machine stand 35 and holds the yarn package 52 for forming a thin thread-wound tube. 10 is a guide installed on the axis of the package 52;
The yarn pulled out from the package 52 is guided.

Reference numeral 11 denotes a swing fulcrum guide installed at a predetermined position above the driving roller 6, and forms a part of the winder 1, the details of which are shown in FIGS. 3 and 4. It is moved by the drive device 12 attached to the bracket 8 to the position (a) above the tail forming position (A) or to the swing fulcrum position (b). Reference numeral 13 designates a yarn winding arm rotatably attached to the bracket 8, to which a yarn clamp holder 14 having a cutter at the end is attached.

Then, when winding the yarn, the arm 13 is rotated by the rotary actuator 15, grips the end of the yarn pulled out from the package 52, and conveys it to the chuck 4 position of the cradle 3. Reference numeral 16 denotes a guide plate attached to the bracket 8 so as to be located above and close to the driving roller 6, the details of which are shown in FIGS. 3 and 4.
An inclined guide portion 16a that guides the yarn to the tail forming guide portion 16b, a guide portion 16c that guides the yarn to the traverse region, and a yarn passage gap portion 16d are formed. 1
A detector 7 is attached to the guide plate 16 so that the detector is located at the yarn traveling position of the tail forming guide section 16b, and detects whether the yarn is traveling toward the tail forming guide section 16b. is detected, and if no thread is detected, an abnormality warning light, warning buzzer, etc. are activated. The detector 17
A contact type detector such as a limit switch with a contact piece, or a non-contact type detector such as a capacitance or phototube can be used, and is installed to detect the tail formed on the tube. You can also.

The above-described positional relationship between the upper position (a) of the tail forming position of the swing fulcrum guide 11 and the tail forming guide portion 16b of the guide plate 16 is such that when the yarn is wound around the empty tube 50 by the arm 13, , the thread is inclined in the guide part 16
The position of the swing fulcrum guide 11 is set at O~(J!)m+ with respect to the tail forming guide part 16b so that the tail forming position (A) or the covering part 4b of the chuck 4 can be conveyed by a. It needs to be adjusted so that it is located on the outside of the wall.

A sprocket wheel 18 is rotatably attached to the machine base 35, and a chino 19 having a veg 20 for holding an empty tube is stretched thereon. And that Cheno 19 is a reciprocating motive! ! 421, the empty tube 50 held by the beg 20 is moved by one pitch of the beg 2° and is transported to the transshipment position.

Reference numeral 22 denotes a tube extrusion mechanism in which a pressing piece is attached to the piston rod of the cylinder, and the tube extrusion mechanism 22 pushes out the empty tube 50 held in the vag 20 to the tube transshipment arm 23. The tube transshipment arm 23 is attached to the bracket 8. The empty tube 50 pushed out from the veg 20 is conveyed to the chuck 4.5 position of the cradle 3.

The doffing device 25 described above runs along a rail installed on the machine base 35 and stops at a predetermined doffing operation position and at a tube receiving position for winding #R1 of the winder for forming thin thread-wound tubes. The carriage 26 is rotatably attached to the carriage 26 and presses the winding device (not shown) of the spinning machine and the cradle 3 of the winding machine for forming a thin thread-wound tube to remove the winding from the driving roller 6. A cradle operating arm 27 that detaches and rotates one side of the cradle 3 in the longitudinal direction of the tube; a movable arm 28 that is rotatably attached to the trolley 26 and has a receiver 29 that holds the fully wound tube; The movable arm 28
The receiver is installed near the tool 29, and receives the thin thread-wound tube formed by the cradle 3 and transfers it to the winding bag of the spinning machine! and a gripper 30 for gripping the thin thread-wound tube.

Each drive device such as the electric motor and low reactor described above operates based on a program input to a control device (not shown) such as a microcomputer, and automatically forms a thin thread-wound tube to be used by the doffing device. It is taken out and fed to the winding device of the spinning machine, or alternatively, by switching to manual control, a thin thread-wound tube is formed and fed to each winding device by an operator.

The operation of forming a thin thread-wound tube in the above-mentioned thin thread-wound tube forming apparatus will be described.

First, an operation sequence is programmed and input into a control device (not shown). Further, a yarn package 52 for forming thin thread-wound tubes is supplied to the holder 9, and empty tubes 50 are attached to all the pegs 20. Then, the yarn pulled out from the yarn para gauge 52 is passed through the guide 10 and the swing fulcrum guide 11, and is held by the yarn clamping tool 14. When these preparations are completed, the doffing device 25, which manually performs the operation of forming the thin thread-wound tube, is placed on standby.6 Next,
The doffing device 25 moves to the tube receiving position of all winding tubes of the thin thread-wound tube forming device, and the cradle operating arm 2
When the gripper 7 rotates and pushes the cradle 3 down to the tube receiving position, the gripper 30 grips the thinly wound tube. Then, the cradle 3 is opened and the tube extrusion mechanism 22 is activated to extrude the empty tube 50 onto the tube transfer arm 23. When the extrusion operation of the empty tube is completed, the tube extrusion mechanism 22 returns to the standby position, and The reciprocating mechanism 21 operates to move the check 719 and transport the adjacent peg 20 holding the empty tube to the empty tube transfer position.

Then, the tube transfer arm 23 rotates to transport the empty tube 50 between the chucks 4 and 5 of the cradle 3.Next, the yarn winding arm 13 rotates to transfer the yarn between the chuck 4 and the tube. 50. At this time, if the swinging fulcrum guide 11 is located outside the tail forming position (A), the yarn is attached to the inclined guide portion 16a of the guide plate 16.
and moves to the tail forming guide section 16b. When the yarn is located between the chuck 4 and the tube 50, the cradle operating arm 27 is actuated to rotate one side of the cradle 3 in the longitudinal direction of the tube 50, so that the shutter 4a of the chuck 4 and the chuck 5 are fitted together. The tube 50 is gripped from both sides by the portions 5a and brought into contact with the driving roller 6. After completing the above-described operations, the doffing device 225 moves to supply the thin thread-wound tube 51 to the winding device of the spinning machine. On the other hand, in the thin thread-wound tube winder, the empty tube 50 rotates and the yarn is wound around the tube 50.

At this time, since the swing fulcrum guide 11 is located above the position (2) of the tail formation position on the outer side of the guide plate 16 (2), the yarn is positioned by the guide portion 16b of the guide plate 16. empty tube 50
is guided and wound around the tube 50 to form a tail. At this time, even if the yarn is wound around the tube cover part 4b of the chuck 4 which is out of the tail forming position (A), the yarn will slide down to the preset position due to the taper formed on the cover part 4b. Make sure to form a tail. and,
When a predetermined amount of tail is formed, the swing fulcrum guide 11 rotates and moves to the swing fulcrum position (b). Then, the yarn moves on the guide portion 16c, passes through the gap 16d, and engages with the a-swing of the driving roller 6, so that the yarn is wound onto the tube. When a preset amount of yarn is wound, the yarn winding arm 13 returns to the standby position. Then,
The yarn gripper 14 operates to grip and cut the yarn located between the swing fulcrum guide 11 and the driving roller 6.

Immediately, the driving roller 6 stops.Then, the swinging fulcrum guide 11 moves to the upper position (a) of the tail forming position, and the tube transshipment arm 23 returns to the standby position. Then, when the doffing device 25 comes to pick up the thin thread-wound tube 51 again, the same operation as described above is repeated to form the thin thread-wound tube 51.

On the other hand, the doffing device 25 that has received the thinly wound tube 51 moves to a predetermined winding device (not shown) position and performs a feeding operation of the thinly wound tube 51.

〔Effect of the invention〕

The winding machine of the present invention is a winding machine that forms a thin thread-wound tube to be supplied to a winding device of a spinning machine, and the swinging fulcrum guide is moved to a position above the tail forming position at the end of the tube when forming the tail. In addition, a guide for guiding the yarn to the tail forming position and a detector for checking whether the yarn has been wound to the tail forming position are installed near the tube at the winding position. Therefore, the yarn can be guided to form a tail, and the tail can be reliably formed. In addition, when forming a tail, it is possible to detect whether the yarn is traveling toward the tail forming position or whether a tail has been formed.
Even if tail formation fails, it can be dealt with immediately.

Further, the swing fulcrum guide is configured to move outward from the tail forming position at the tube end when forming the tail,
A tube gripping chuck on the tail forming side of the cradle is fitted so as to cover the outer periphery of the tube, the tip of the covering part is at the tail forming position, and the covering part is tapered. Then, the yarn can be reliably guided to the tail forming position and the tail can be reliably formed.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of a thin thread-wound tube forming mechanism equipped with a winder of the present invention. FIG. 2 is a schematic side view of FIG. 1. FIG. 3 is a schematic enlarged view showing the winding machine in FIG. 1. FIG. 4 is a schematic side view of FIG. 3. FIG. 5 is a view taken along the Z-2 arrow in FIG. 4. 1: Winder, 2.8 = bracket, 3: cradle, 4.5: chuck, 6: drive roller,
11: Swing fulcrum guide, 13: Arm with thread wrapping, 1
6: Guide plate, 17: Detector,

Claims (1)

[Claims] 1) In a winding machine that forms a thin thread-wound tube to be supplied to a winding device of a spinning machine, a swing fulcrum guide is moved to a position above the tail forming position at the end of the tube when forming a tail. In addition, a guide for guiding the yarn to the tail forming position and a detector for checking whether the yarn has been wound to the tail forming position are installed near the tube at the winding position. A winding machine featuring: 2) The winder according to claim 1, wherein the swing fulcrum guide is configured to move outward from the tail forming position at the end of the tube when forming the tail. 3) A tube gripping chuck on the tail forming side of the cradle was fitted so as to cover the outer periphery of the tube so that the tip of the covering part was at the tail forming position and the covering part was tapered. A winding machine according to claim 1, characterized in that: