JPH0635256U - Friction drive type turret type automatic winding device - Google Patents

Abstract

(57) [Abstract] [Purpose] A highly reliable friction drive type turret type automatic machine that avoids the complication of equipment and can smoothly perform automatic switching without the risk of deceleration when switching between empty bobbin and take-up bobbin. A winding device is provided. [Structure] Two bobbin holders 7 and 8 are symmetrically provided on a rotatable turret 11, and a winding bobbin holder 7 is provided.
The auxiliary roller 9 is provided in the vicinity of the turret 11 so that the two can rotate and move together with the turret 11 without changing the relative position, and the approach roller 10 is provided in the vicinity of the empty bobbin holder 8 so that both of them can move. The turret 11 and the turret 11 are configured to rotate and move as a pair without changing the relative position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a friction drive type turret type automatic winding device which is suitable for polyurethane fibers, in which the yarns are automatically changed. And an auxiliary driving means for a winding bobbin having a predetermined amount of packages formed therein.

[0002]

[Prior art]

 Conventionally, two bobbin holders are provided on the rotating arm or turret, and when a bobbin mounted on one bobbin holder has a predetermined amount of package formed, the bobbin mounted on the other bobbin holder is automatically threaded. There is a turret-type automatic winding device that can switch the yarn, and in this device, a bobbin with a package with a predetermined winding amount is formed in order to smoothly switch the yarns (increase the success rate of the switching). The empty bobbin is rotated by the running roller for running. As prior arts of this type, there are, for example, JP-A-59-92871 (conventional example 1) and JP-A-61-165975 (conventional example 2).

Conventional example 1 is an example in which, as shown in FIG. 3, two bobbin holders 31 and 32 are provided with an auxiliary drive device (auxiliary roller) 33 and an auxiliary roller 34, respectively. While rotating the rotating arm 35 to the holder 32, the runner roller 34 is brought into contact with the holder 32, and the runner is rotated at the same speed as the surface speed (peripheral speed) of the friction roller 36. The holder 34 is brought into contact with the friction roller 35. At this time, the package 37 comes into contact with the auxiliary driving device 33 and is driven. However, when the distance between the friction roller 36 and this auxiliary driving device 33 is large, both of them are prevented in order to prevent the rotation speed (stall) of the package 37 from decreasing. A second auxiliary drive device 38 is provided between them.

As is clear from the switching process diagrams of FIGS. 4 (a) to 4 (c), the configuration of the conventional example 2 is the drive for driving the empty bobbin and the drive of the bobbin wound with the yarn as in the above-described conventional example 1. Since the apparatus becomes complicated when the above and the above are performed by separate auxiliary driving means, this is performed by the common auxiliary driving apparatus (running roller) 43. In that case, the torque of the drive motor of the run-up roller 43 can be changed to prevent slipping between the empty bobbin holder 42 and the run-up roller 43. As shown in the figure, when the winding bobbin holder 41 is formed with a predetermined amount of packages 44, the run-up roller 43 comes into contact with the empty bobbin holder 42 and imparts rotation (FIG. 4 (a)). The turret 45 rotates right and the package 44 separates from the friction roller 46, and at the same time, the run-up roller 43 contacts the bobbin holder 41 and holds the rotation as it is ((b)). Further, the turret 45 is rotated, the yarn 44a to the package 44 is cut, and the empty bobbin holder 42 which is driven to run comes into contact with the friction roller 46 to start winding the yarn 44a, and automatic switching is performed. It is said (the same (c)).

[0005]

[Problems to be solved by the device]

 In Conventional Example 1, since the distance from the empty bobbin holder 32 to the friction roller 36 is long, the peripheral speed of the empty bobbin holder 32 may decrease. In this respect, the winding bobbin holder 31 is also the same, but in order to prevent this, a second auxiliary driving device 38 is provided between the winding bobbin holder 31 and the first auxiliary driving device 37. I have decided. Therefore, it is unavoidable that the device becomes more complicated.

In Conventional Example 2, as shown in FIGS. 4 (a) to 4 (c) showing the switching process, the running roller and the auxiliary driving device are integrated into one unit, and the common running roller 43 drives the empty bobbin holder 42 to run. The drive roller 43 that is in contact with the empty bobbin holder 42 is moved to the take-up bobbin holder 41 as shown in FIGS. Since it is necessary to make it contact with this, and moreover, the distance to the friction roller 46 after the run-up is given to the empty bobbin holder 42 is inevitably long, there is a great risk of deceleration. Originally, a certain contact time was required to raise the empty bobbin holder 42 to the normal peripheral speed, but in this example, it is necessary to start the run before the completion of the package in order to secure a certain run time. There is a risk of deceleration because it is difficult to set the timing for starting the run, and the distance between the empty bobbin holder 42 and the run roller 43 is long even when the run is started up.

An object of the present invention is to reliably drive an empty bobbin and a take-up bobbin for run-up drive while avoiding complication of the device, and smooth automatic switching without fear of deceleration at the time of switching. , To provide a highly reliable turret type automatic winding device.

[0008]

[Means for Solving the Problems]

 To achieve the above object, the friction drive type turret type automatic winding device of the present invention is provided with two bobbin holders on a rotatable turret, and an auxiliary roller for auxiliary rotating the winding bobbin holder. In a friction drive type turret type automatic winding device in which an empty bobbin holder is provided with an advancing roller for making an advancing rotation, in the friction drive type turret type automatic winding device, the auxiliary roller is provided close to the winding bobbin holder, and the relative position of both It is configured to rotate and move together with the turret without changing the position, and the run-up roller is provided in the vicinity of the empty bobbin holder, and both of them form a pair without changing their relative positions. It is characterized in that it is configured to rotate together with the turret described above.

[0009]

[Action]

 In the above configuration, the empty bobbin holder and the run-up roller, and the take-up bobbin holder and the auxiliary roller make a pair without changing their relative positions and rotate together with the turret. The run-up roller can be brought into contact with the drive roller to drive the empty bobbin, and the empty bobbin can be easily started up to a predetermined peripheral speed, and the fear of lowering the peripheral speed is eliminated. Similarly, the winding bobbin that forms the package forms a pair with the auxiliary roller and rotates together with the turret, so that the automatic bobbin can be automatically switched to an empty bobbin while keeping the peripheral speed of the winding bobbin constant.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a main part of a friction drive type turret type automatic winding device according to the present invention. A traverse box 4 containing a traverse cam 3 protruding horizontally from the elevating frame 2 and a friction roller box 6 containing a friction roller 5 adjacent to the traverse box 4 are juxtaposed on the upper part of the apparatus main body 1. The friction roller 5 is rotationally driven by a dedicated drive motor 5A, and abuts on the outer circumference of the package 12 formed on the bobbin mounted on the bobbin holder 7 on the winding side to give a predetermined rotation speed thereto. The friction roller 5 and the like move up and down via the elevating frame 2 according to the winding amount of the yarn 12a on the winding bobbin.

A disc-shaped turret 11 is rotatably provided below the friction roller 5. That is, the turret rotation shaft 11a is fixed to the rotation center of the turret 11, the driven pulley 11b for driving the turret is attached to the end of the shaft, and this and the drive pulley 11d provided on the turret driving motor 11e. Are connected via a belt 11c. Therefore, by operating the drive motor 11e, the turret 11 is rotated about the rotation shaft 11a in the arrow direction (right).

On the other hand, two bobbin holders 7 and 8 symmetrically project horizontally across the turret rotation shaft 11a. One is a bobbin holder 7 for a bobbin, which is located above the turret rotation shaft 11a and winds the yarn 12a, and is rotatably supported by a shaft 7a fixed to the turret 11. The other is a bobbin holder 8 for an empty bobbin located below the turret rotation shaft 11a, which is also rotatably supported by a shaft 8a fixed to the turret 11.

An auxiliary roller 9 is provided in the vicinity of the bobbin holder 7, its shaft 9a is supported by a turret 11 via a bearing tube 9b, and a driven pulley 9c is mounted on the rear end of the shaft. The driven pulley 9c is connected by a belt 9g to a drive pulley 9f provided in an auxiliary roller drive motor 9e via a pair of intermediate pulleys 9d rotatably supported on a turret rotation shaft 11a. Similarly, an advancing roller 10 is provided in the vicinity of the bobbin holder 8, its shaft 10a is supported by a turret 11 via a bearing tube 10b, and has a driven pulley 10c at the rear end of the shaft. The pulley 10c and the drive pulley 10f of the drive roller driving motor 10e are connected by a belt 10g via a pair of intermediate pulleys 10d rotatably supported by the turret rotation shaft 11a. By interposing the intermediate burrs 9d and 10d on the turret rotation shaft 11a, the pair of bobbin holders 7 and 8 and the auxiliary roller 9 or the run-up roller 10 can be rotated together with the rotation of the turret 11. is there.

The intermediate portions of the bearing cylinders 9b and 10b of the auxiliary roller 9 and the runner roller 10 are supported by the turret rotation shaft 11a via the swing arms 9h and 10h, and the swing arms 9h and 10h are the turret rotation shafts. It is configured to be swingable around 11a. That is, the turret penetrating portions of the bearing cylinders 9b and 10b have a long hole H that allows a slight swing, so that the auxiliary roller 9 and the running roller 10 can be pressed against the respective bobbin holders 7 and 8. A pneumatic cylinder (not shown) is attached. By the extension operation of the pneumatic cylinder, the swing arms 9h and 10h swing and the auxiliary roller 9 or the run-up roller 10 comes into contact with the predetermined bobbin holders 7 and 8 to rotate the bobbin holders 7 and 8 in the run-up. ing.

As is apparent from the above structure, the bobbin holder 7 in the winding position and the auxiliary roller 9 arranged in proximity to the bobbin holder 7 do not change their relative positions and form a pair so that they rotate together as the turret 11 rotates. On the other hand, the bobbin holder 8 for the empty bobbin and the run-up roller 10 arranged in the vicinity of the bobbin holder 8 are paired with each other without changing their relative positions and are rotated together as the turret 11 rotates.

Here, the switching operation in the device of the present invention having the above-mentioned configuration will be described with reference to FIGS. 2 (a) (b) (c). Figure 2 (a): The bobbin holder 7 with the take-up bobbin rotates in contact with the friction roller 5 and winds the yarn 12a guided from above to form the package 12 with a predetermined amount on the take-up bobbin. The friction roller 5 is in contact with the outer circumference of the package 12 to rotate it. Until the package 12 having a predetermined winding amount is formed on the winding bobbin, the auxiliary roller 9 and the run-up roller 10 are in a standby state near the bobbin holders 7 and 8 of the winding bobbin and the empty bobbin, respectively.

FIG. 2 (b): At the stage when the package 12 having a predetermined winding amount is formed on the winding bobbin, the turret 11 rotates clockwise in the direction of the arrow, and immediately after the turret 11 is separated from the friction roller 5, the auxiliary assistance on standby. The roller 9 comes into contact with the take-up bobbin holder 7 by the swing of the swing arm 9h (FIG. 1) caused by the operation of the pressure contact cylinder (not shown), and holds the rotation of the package 12 until then. On the other hand, the run-up roller 10 standing by near the empty bobbin holder 8 comes into contact with the empty bobbin holder 8 by the swing of the swing arm 10h (FIG. 1) to drive it. At that time, the bobbin holder 7 and the auxiliary roller 9, which have been completely wound up, rotate in a pair according to the rotation of the turret 11 without changing their relative positions, and at the same time, the bobbin holder 8 with an empty bobbin and the run-up roller 10 are moved. Also rotate and move in pairs without changing the relative position, and the empty bobbin holder 8 is raised to a predetermined rotation speed (peripheral speed) until it comes into contact with the friction roller 5.

FIG. 2 (c): The running roller 10 contacts the empty bobbin holder 8 until the turret 11 makes a half rotation, and the running roller 10 is rotated according to the rotation of the turret 11 while giving sufficient rotation, and the empty bobbin is moved. Immediately before the holder 8 comes in contact with the descending friction roller 5, the approach roller 10 separates. After that, the yarn 12a on the package 12 is cut, the auxiliary roller 9 is separated from the package 12, and the yarn 12a is newly wound on the empty bobbin of the empty bobbin holder 8 which is driven in contact with the friction roller 5. Is started and the winding of the yarn is switched automatically. The above-mentioned rotation operation of the turret 11, contact of the auxiliary roller 8, the approach roller 10, the friction roller 5 and the like, the timing of the separation operation, the synchronization and the like are performed by a separately provided control device.

[0019]

[Effect of device]

 A pair of auxiliary driving devices (auxiliary roller and running roller) are provided close to the take-up bobbin and the empty bobbin, respectively, and each auxiliary driving device paired with the take-up bobbin or the empty bobbin is relatively Since the turret is rotated and moved together without changing the position, there is no risk of deceleration of the take-up bobbin and the empty bobbin when the yarn is switched, and continuous winding and switching of the yarn is smooth ( It can be used as a highly reliable device because it can perform thread cutting and slackening. In particular, unlike the conventional example, it is not necessary to provide a second auxiliary roller between the winding bobbin and the auxiliary roller, which avoids complication of the apparatus and also allows a long contact time with the run-up roller, which results in an empty space. The bobbin can be reliably started up to a predetermined peripheral speed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a friction drive type turret type automatic winding device of the present invention in a perspective manner.

2 (a), (b) and (c) are main views showing a process of automatic switching by the device of the present invention.

FIG. 3 is a main part view of a conventional turret type automatic winding device.

4 (a), (b) and (c) are principal part diagrams showing a process of automatic switching in another conventional example.

[Explanation of symbols]

 5 ... Friction roller 7 ... (winding) bobbin holder 8 ... (empty) bobbin holder 9 ... Auxiliary roller 10 ... Running roller 11 ... Turret 11a ... Turret rotating shaft 12 ... Package 12a ... Yarn

Claims (1)

[Scope of utility model registration request] 1. A rotatable turret is provided with two bobbin holders, a take-up bobbin holder is provided with auxiliary rollers for auxiliary rotation of the bobbin holder, and an empty bobbin holder is provided with run-up rollers for auxiliary rotation of the bobbin holder. In the provided friction drive type turret type automatic winding device, the auxiliary roller is provided in the vicinity of the winding bobbin holder, and further, both of them make a pair and rotate together with the turret without changing their relative positions. In addition to being configured, the run-up roller is provided in the vicinity of the empty bobbin holder, and the two are configured to rotate and move together with the turret in a pair without changing their relative positions. Friction drive type turret type automatic winding device.