JPH0336528Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is for changing the direction of the doffing cart from the winding device side on one side to the winding device side on the other side at the end of the yarn false twisting machine. This invention relates to a device for changing the direction of a doffing truck in a yarn false twisting machine.

[Prior Art] As shown in FIG. 5, a yarn false twisting machine passes a filament yarn Y fed out from a yarn feeding package P1 of a creel stand a to a first heater b, a yarn cooling plate c, a false twisting device d, and a second heater e. The fibers are sequentially subjected to false twisting and wound onto a winding package P2 in a winding device f. A plurality of pegs g supporting empty bobbins B are located at positions facing the winding device f.
A peg stand h is arranged. Conventionally, the doffing work of doffing the fully wound package P2 in the winding device f and replacing it with an empty bobbin B in the peg stand h was done manually, which was a pain. Therefore, in order to automate the doffing work, the present applicant previously filed an application for a device that automatically exchanges the full package P2 with the empty bobbin B using the doffing cart i (patent application filed in 1983). −227476).
This device runs a doffing truck i along a running surface j formed in the longitudinal direction on the floor between winding devices f arranged adjacent to each other and a peg stand h facing them. , the full package P2 and the empty bobbin B are exchanged.

By the way, in order to save space, yarn false-twisting machines generally have winding devices f placed back to back, so one yarn false-twisting machine has two running paths j and k that are close to each other. ing. In this case, if the direction of the doffing cart i can be changed from one running path j to the other running path k at the end of the yarn false twisting machine, 1
It is economical because doffing work can be done on both sides using a single doffing cart.

[Problems to be Solved by the Invention] However, when the doffing truck i is made to run on its own and change direction, there is a problem in that a large space for turning is required. Another possibility is a device that turns the entire doffing truck along with the rail on which it is placed to change direction, but in this case there is a problem in that the structure of the device is complicated.

Therefore, the present invention was made to solve the above problems, and its purpose is to provide a device for changing the direction of a doffing cart in a yarn false twisting machine, which has a simple structure and requires a small space for turning. It is in.

[Means for Solving the Problems] In order to achieve the above object, the present invention dows the package of each winding device at the end of a yarn false twisting machine having a plurality of back-to-back winding devices adjacent to each other. In a device for changing the direction of a doffing truck running along a winding device from one side to the other, a guide rail is provided along the winding device on each side, and the doffing truck is mounted on one side of the doffing truck. A driven wheel that rolls on the guide rail and a tire that rolls on the running road surface by a driving force is installed on the other side, and a tire on one side is installed at the end of the yarn false twisting machine. This system is provided with a swivel base having a support rail on which a driven wheel is mounted from a guide rail, and which is rotated by the drive of the tires and connected to the guide rail on the other side.

[Function] The doffing truck has its driven wheels mounted on guide rails, and is driven by tires that roll on the running road until it reaches one end of the yarn false twister, and then waits at that end. The driven wheel transfers from the guide rail to the support rail of the swivel base. Then, the doffing truck rotates together with the swivel platform by driving the tires with the driven wheels placed on the support rail of the swivel platform, and the support rail is connected to the guide rail on the other side, so that the driven wheels move away from the support rail. Transfer to the guide rail on the other side. In this way, since one side of the doffing truck is placed on the turning base and the direction is changed, the direction of the doffing truck can be changed with a small turning radius.

[Example] An example of the present invention will be described below in detail based on the accompanying drawings.

As shown in FIG. 2, a long first heater 2 is provided upright on one side of the working space 1, and a plurality of winding devices 3 are provided on the other side. Further, a creel 4 supporting a large number of yarn supply packages P1 is located at the back of the first heater 2, and a second heater 5 is installed at the back of the winding device 3. A yarn cooling plate 6 and a false twisting device 8 are arranged in this order above the work space 1, and feed rollers 9, 10, 11 are arranged below the first heater 2 and above and below the second heater 5, respectively. Yarn Y pulled out from yarn supply package P ₁
The yarn passes through the first feed roller 9, passes through the first heater 2 from bottom to top, travels obliquely downward along the yarn cooling plate 6, and is introduced into the false twisting device 8. The yarn Y leaving the false twisting device 8 is bent downward by the guide pin 14, passes through the second feed roller 10, descends inside the second heater 5, passes through the third feed roller 11, is wound up by the winding device 3, and is wound. It is formed as a take-up package _P2 . A total of 12 winding devices 3 are installed in 3 stages above and below and 4 rows in the longitudinal direction of the page.
It is composed of a cradle arm 16 that supports P ₂ , a friction roller 17 that rolls and drives the package P ₂ , and other members.

A flat peg stand 20 is arranged in front of the first heater 2 in the work space 1 . The stand 20 has rollers 21 provided on its lower surface that are connected to the rails 2.
By sliding on the winding device 2, the winding device 3 can run in the front and rear directions in the plane of the drawing, and is normally fixed at a position facing the winding device 3 by a stopper (not shown). Also, the winding device 3 of the stand 20
A total of 12 pegs 23 are installed horizontally in three rows vertically and in four rows in the longitudinal direction of the paper, with equal spacing between the top and bottom and the front and back, and each peg 23 has an empty bobbin B attached to it. are inserted in each.

A plurality of the winding devices 3 and the peg stands 20 are arranged side by side and adjacent to each other, and a plurality of rows of these are provided. In particular, as shown in FIG. 1, the winding devices 3 are arranged back to back.

Then, on each floor between the winding device 3 and the peg stand 20, a fully wound package _P2 supported by the winding device 3 is doffed and an empty bobbin supported by the peg stand 20 is placed. Traveling paths 24 and 34 are formed on which a doffing truck 25 having a band mechanism (not shown) that replaces the doffing truck 25 travels.
In addition, guide rails 2 are placed close to the winding device 3 and along the winding device 3 on each running path 24, 34.
7 and 42 are installed, respectively.

The doffing truck 25 has four auxiliary wheels 2 for running on the floor.
6, and a pair of front and rear driven wheels 28 that roll on the guide rails 27, 42 to make the doffing truck 25 float above the running paths 24, 34 and travel. On the other side of the lifting truck 25, there are provided tires (jerker tires) 29 that roll on the running paths 24, 34 by driving force. This jack tire 29 is equipped with a drive section and a jack mechanism 30 for raising and lowering the truck.

At the end of the false twister 31, a driven wheel 28 is connected from the guide rail 27 on one side as shown by the solid line in the first figure.
A swivel base 35 is provided which has a support rail 41 on which is placed a supporting rail 41 which is rotated by the drive of a jack tire 29 as shown in the imaginary line and is connected to a guide rail 42 on the other side. This swivel base 35 has a substantially T-shape in plan, and a support rail 41 having a length on which the front and rear driven wheels 28 of the doffing truck 25 are mounted is fixed to a long part thereof, and a base end perpendicular to the long part is fixed. 36 is attached to the end of the false twister 31 via a hinge 37 so as to be horizontally rotatable. In addition, in order to facilitate the turning of the turning table 35, running paths 24 and 3 are provided at both ends of the lower part of the long portion.
Wheels 3 rolling on four surfaces and on the same plane floor surface 38 where these communicate at the end of the yarn false twister 31
9, the extension line of each wheel 40 is the swivel base 35
It is installed so that it passes through the center of rotation.
When the driven wheel 28 of the doffing truck 25 is transferred from the guide rail 27 onto the support rail 41 with one end of the support rail 41 in contact with the end of the guide rail 27 on one side, Driven by the jack tires 29, the doffing truck 25 and the doffing truck 25 are rotated about the hinge 37 as a fulcrum to change the direction of the doffing truck 25, so that the other end of the support rail 41 comes into contact with the end of the guide rail 42 on the other side. Become.

Note that the jack tire 29 has a single wheel specification in which two wheels are mounted close together in order to efficiently rotate without slipping when turning, and the axis line passing through the middle position of the axles 29a and 29b passes through the center of turning. is set to . Also doffing cart 25
In order to fix the doffing truck 25 on the swivel base 35, as shown in FIG. , 45 is provided with a U-shaped engagement piece 46 that can be freely extended and retracted by a jack 47.

In FIGS. 2 and 3, 48 is a power feed line installed along the running direction of the doffing truck 25, and 49 is a power receiving rod extending from the doffing truck 25 to make sliding contact with the power feed line 48. It is.

In the above configuration, the swivel base 35 is in a standby position swiveled toward one of the travel paths 24, 34. The doffing truck 25 places the driven wheels 28 on the guide rail 27, and the jacked tires 29 are placed on the running path 2.
4 and reaches the row end of the false twister 31, the driven wheels 28 are transferred from the guide rail 27 onto the support rail 41 on the turning table 35, and one side of the doffing cart 25 turns. It is supported on a stand 35.
At this time, the engaging piece 46 is extended to lock the fixing block 43.
, and the doffing truck 25 is fixed on the swivel base 35. Next, as the doffing truck 25 is driven by the jack tires 29, it turns around the turning center of the turning table 35 as a fulcrum, so it can turn with the minimum radius and change direction, and after turning, the engaging piece 46 can be moved away from the fixed block 43. Remove the driven wheel 28 from the support rail 41
It can be moved from above onto the guide rail 42 on the other side and run on the other running path 34 side. The doffing truck 25 that has returned after doffing along the other running route 34 uses the turning platform 35 waiting on the other running route 34 side to return to the other running route 34.
The vehicle then moves to one of the travel routes 24. Since the turning table 35 turns using the power of the doffing cart 25 in this way, there is no need for a separate power source, and unlike a device that turns with the entire doffing cart 25 mounted, the structure is simple and low cost. It can be implemented at low cost.

Note that the jack tire 29 may be a single wheel. Further, the shape of the swivel base 35 is not limited to the above embodiment.

[Effects of the invention] In summary, the present invention provides the following excellent effects.

(1) One wheel of the doffing truck is placed on a turning platform, and the other wheel turns the doffing truck together with the turning platform, so the doffing truck can be rotated within a small radius around the turning center of the turning platform. can change direction.

(2) Since the turning platform is rotated using the power of the doffing truck, a separate power source is not required, and the structure is simplified, unlike a device that turns with the entire doffing truck on it. I can do it.

[Brief explanation of the drawing]

Fig. 1 is an enlarged plan view of a swivel table to show an embodiment of the present invention, Fig. 2 is a front view of a yarn false twisting machine, and Fig. 3 is a front view of a yarn false twisting machine.
The drawings are an enlarged sectional view taken along the line A--A in FIG. 2, FIG. 4 is a plan view showing a positioning device, and FIG. 5 is a diagram showing a conventional yarn false twisting machine. In the figure, 3 is a winding device, 20 is a peg stand, 2
4 and 34 are running paths, 25 is a doffing truck, 27 is a guide rail, 35 is a turning base, 37 is a hinge, and 41 is a support rail.

Claims (1)

[Scope of utility model registration request] At the end of a yarn false twisting machine having a plurality of back-to-back winding devices adjacent to each other, a doffing cart running along the winding devices is doffed from one side to the other while doffing the package of each winding device. In a device that changes direction,
A guide rail is provided along the winding device on each side, and a driven wheel that rolls on the guide rail is installed on one side of the doffing truck to raise the truck above the running road surface and run on the running road surface on the other side. A tire that rolls due to driving force is provided, and a driven wheel is placed on the end of the yarn false twister from the guide rail on one side, and the yarn is rotated by the drive of the tire and connected to the guide rail on the other side. A device for changing the direction of a doffing cart in a yarn false twisting machine, characterized in that it is provided with a turning table having a support rail.