JPH0453792B2 - - Google Patents

Description

Detailed Description of the Invention (Technical Field) The present invention relates to a doffing device for a full cage in a surface friction drive type winding device, and more specifically to an open-end spinning machine, a drawing false twisting machine, and a double twisting machine. A full package cage is formed by a winding device using a surface friction drive system that winds the yarn into a cheese shape by bringing the winding tube held at both ends of the cradle arm into contact with the winding roller in a textile machine such as a rewinding machine. Then, when doffing a full cage, a doffing device for a full cage in a winding device is provided with a guide body that covers the surface of a rotating take-up roller and automatically guides the full cage to a doffing storage location. It is related to.

(Prior art and its problems) As a doffing device in a conventional surface friction drive type winding device, a doffing device for a package is installed at a position opposite to the winding roller around the cradle's spindle when viewed from the employee's location. It has been proposed that the cradle that holds the cage is rotated to temporarily store the fully loaded cage. (For example, Japanese Patent Publication No. 48-38902, Utility Model Publication No. 49-26493) However, in recent years, there has been a trend toward larger packages being rolled up, and in this case, the temporary storage area for full package cages has become more difficult than before from the point of view of the worker. If it is located at the rear of the section, the drive parts such as the traverse guide and take-up roller will become a hindrance when workers transfer the full package cage from the temporary storage area to the next process, making handling the full package cage extremely dangerous. A new one has emerged.

(Purpose) The present invention aims to solve this problem, and its purpose is to temporarily store large, full cages when doffing is performed continuously without stopping the machine. The location is located in front of the winding section, which is easy to handle from the perspective of the worker, and the worker's hands and fingers do not come into contact with the traverse guide undergoing traversing motion or the rotating winding roller. Therefore, it is an object of the present invention to provide a doffing device which enables safe doffing operation.

(Solution Means) The present invention takes the following means to achieve the above object. That is, the traverse guide drive unit, take-up roller, and cradle are arranged in this order in the horizontal direction when viewed from the operator, and the doffed full package cage is placed on top of the traverse box containing the traverse guide drive unit for temporary storage. Install a storage plate. At the lower part of the cradle, a guide body is arranged between the support shaft of the cradle arm and the take-up roller to catch the full package falling and roll on it to guide it to the storage plate.
This guide is attached to a moving device that moves in the horizontal direction, and after forming a full package cage, during doffing, it is moved from the bottom of the cradle arm, which had been waiting during package formation, to cover the surface of the take-up roller and move the full package cage. so that it leads to the storage plate,
Next, after the empty tube is supplied to the cradle, the guide plate is again moved to the original standby position.

(Example) Next, an example of a device for carrying out the present invention will be specifically described with reference to the drawings. In FIGS. 1 and 2, 1 is a winding drum fixed to a drive shaft 2, 3 is a support shaft 4, The cradle is rotatably mounted, and a tube holder 6 for holding the take-up tube 5 is attached to the tip of the arm of the cradle, and guide plates 9 are attached to both ends of the support shaft of the cradle.
A cam lever 7 that serves as a driving source (described later) is attached. 8 is a cradle stand that supports the cradle 3; 9 is a guide plate that catches the fully loaded cage as it naturally falls and guides it to the storage location by rolling on it; 3 and the winding roller 1
The block 10 is disposed between the support shaft 4 of the cradle 3, and two links 11 and 11' are rotatably mounted on one side and supported from both sides. Said links 11, 11'
The upper end is the pin 1 provided on the lower surface of the guide plate 9.
2 and 12', respectively, while the lower end has pins 13 and 1 attached to blocks 10 and 10'.
It is arranged so as to be rotatable about 3' as a fulcrum. Reference numerals 14 and 14' designate tension springs so that the guide plate 9 is positioned at a standby location below the cradle 3, one end of which is attached to the link 11, and the other end of which is attached to a holder attached to the machine frame. 15, and constantly applies a rotational force in the counterclockwise direction using the pin 13 at the lower end of the link 11 as a fulcrum. 16 is a stopper that locks the guide plate 9 as it is pulled by the tension spring 14; 17 is a traverse box with a built-in traverse drive unit; 18 is a traverse guide; and 19 is for temporarily storing a full cage. A storage plate is fixed so as to be positioned above the traverse box 17. Reference numeral 20 denotes a bracket that controls the positioning of the guide plate 9 when it moves toward the storage plate, and this bracket has a protrusion 20a formed on its upper surface, and its lower surface is fixed to the upper surface of the traverse box 17. ing.

An example of the apparatus for carrying out the present invention is constructed as described above, and its operation will now be described. During yarn winding, the guide plate 9 is moved by the tensile force of the tension spring 14 as shown in FIG. It is located at the lower part of the cradle 3, and the winding tube 5 is in contact with the winding drum 1 and stands by while the package is being formed without any hindrance. Now, as the package continues to be formed from the state shown in FIG. 1 at the beginning of winding, the state shown in FIG. 3 will be reached when the package is full. In this state, the cradle 3 rotates counterclockwise using the support shaft 4 as a fulcrum, and in conjunction with this, the cam lever 7 also rotates counterclockwise using the support shaft 4 as a fulcrum. This is the position where it engages with the roller 11a attached to the link 11. When the cradle 3 is lifted to doff the full cage, the cam lever 7 presses the roller 11a, as shown in FIG. 4, and the link 11 rotates clockwise about the pin 13 as a fulcrum. Therefore, the guide plate 9 attached to the upper end of the link 11 moves in the horizontal direction and reaches a position that is exactly between the full package and the take-up roller 1 and covers the surface of the take-up roller 1, and the guide plate 9 is moved in the horizontal direction. The right end of the plate 9 rests on the upper surface of the bracket 20 so as to face the position where it engages with one end of the storage plate 19. When the cradle 3 is opened, the fully loaded cage will naturally fall, but the guide plate 9 will be waiting at the bottom. One end of this guide plate 9 is supported by a bracket 20 on the traverse box 17, while the other end is supported by links 11, 11' which are tensioned by a tension spring 14 and are biased with counterclockwise rotational force. Therefore, the full package is received by the guide plate 9 and rolled onto the storage plate 19. Next, when the cradle 3 is pushed down after holding a new take-up tube 5, the cam lever 7 rotates clockwise about the support shaft 4, and the guide plate 9 also rotates in conjunction with the rotation of the tension spring 14. It returns to the standby position shown in FIG.

FIG. 5 shows another example of carrying out the present invention, in which the guide plate 9 is supported by a rack 21 and pinion 22 mechanism instead of the above-mentioned link mechanism, and the guide plate 9 is supported by a rack 21 and a pinion 22 mechanism, so that the guide plate 9 is supported by a standby mechanism at the bottom of the cradle during package winding. This is an example of a device that is moved from the place where the full cage was stored and is used to catch the natural fall of the full cage and guide it to the storage location during doffing after the full cage is formed.
In this example, the guide plate 9 is supported by a support stand 25 and a guide roller 24 in the waiting area, and is linked to the rotational movement of the cradle to form a full package.
The pinion 22 is activated by a drive command signal to the drive shaft 23.
When the guide plate 9 rotates clockwise, the rack 21 that engages with the pinion 22 moves to the right, and as a result, the guide plate 9 covers the surface of the take-up roller 1 and one end thereof is locked to the bracket 20. become.

After doffing is completed, the pinion 22 is rotated in the opposite direction to return the guide plate 9 to its original standby position.

FIG. 6 shows another example of carrying out the present invention, in which the guide plate 9 is supported by a pair of left and right endless chain mechanisms 26; One end of the guide plate 9 is formed from a wide thin plate 9a, while the other end is formed from a number of narrow plates 9b.

The endless chain mechanism 26 is composed of a sprocket 28 attached to a drive shaft 27 and a chain 29 suspended from guide sprockets 28a, 28b, and 28c.

In this example, after the full package is formed, first, when an operation command signal is sent to the drive shaft 27, the sprocket 2
8 rotates clockwise, so that the guide plate 9 moves to the right and covers the surface of the take-up roller 1.
Bracket 2 provided on traverse box 17
One end of it is locked to 0. Next, after doffing is completed, the guide plate 9 is returned to its original standby position by rotating the sprocket 28 in the opposite direction to that described above. It goes without saying that a drive mechanism using an endless belt may be used instead of the endless chain mechanism 26 described above.

(Effects) As described above, the present invention provides a guide plate which is located at the lower waiting area of the cradle during package winding, and which covers the surface of the take-up roller and traverse guide during doffing and guides full package cages to a temporary storage location. Compared to conventional equipment, the drive section of the take-up device is hidden behind this guide plate when workers are handling a full package, allowing them to safely handle a full package. This has the effect of allowing the package to be operated.

[Brief explanation of the drawing]

FIG. 1 is a side view of essential parts showing an example of a winding device equipped with a device for carrying out the present invention, and FIG. 2 is a plan view taken along arrow A-A' in FIG. 1, and FIGS. 5 and 6 are explanatory diagrams showing the operating state of the device of the present invention.
The figure shows a side view of the main parts of a winding device equipped with a device showing another example of the device implementing the present invention. 1... Take-up roller, 3... Cradle, 4... Support shaft,
5... Winding tube, 7... Cam lever, 9... Guide plate, 11, 11'... Link, 17... Traverse box, 19... Storage plate, 21... Rack, 22... Pinion, 26... Endless chain mechanism.

Claims (1)

[Claims] 1. A traverse guide drive unit, a take-up roller, and a cradle are arranged in this order in the horizontal direction, and a take-up tube held at both ends of the cradle arm is brought into contact with the take-up roller to unwind the yarn. In a doffing device of a surface friction drive type winding device for winding up, a guide body located at the bottom of the cradle that catches the falling of the full package cage held at both ends of the cradle arm and allows it to roll on it. a moving means for moving the guide from a waiting position during package formation at the bottom of the cradle to a position covering the surface of the take-up roller during doffing; and when the guide is moved by the moving means. A doffing device for a winding device of a surface friction drive type, characterized in that it comprises a storage plate for temporarily storing the full package cage rolling on the guide body. 2. The moving means includes a cam lever that is attached to the support shaft of the cradle and rotates in conjunction with the rotational movement of the cradle, and a position where the guide body is always on standby during yarn winding by engaging with the cam lever and using a spring. 2. A doffing device in a surface friction drive type winding device according to claim 1, characterized in that the doffing device comprises a rotatably provided link that is biased with a rotational force for causing the doffing device to rotate. 3. A doffing device in a surface friction drive type winding device according to claim 1, wherein the moving means is constituted by a rack and pinion mechanism. 4. A doffing device in a surface friction drive type winding device according to claim 1, wherein the moving means is constituted by a pair of endless body drive mechanisms. 5. A doffing device in a surface friction drive type winding device according to claim 1, wherein the storage plate is fixed on a traverse box having a built-in traverse guide drive section.