JPH0226931A - Device for removing remaining yarn on bobbin of spinning machine - Google Patents

Abstract

PURPOSE:To remove remaining yarn in the middle of transportation of bobbin by setting plural fixed outer columns of suction right under in the midst of bobbin transporting rail and rise and fall suction nozzles to expand and contract the outer columns in each fixed outer column of suction. CONSTITUTION:When bobbins 2 from which remaining yarn are to be removed is sent to a removal position of remaining yarn by a transfer rail 1, a suction nozzle 5 of rise and fall type is raised so as to extend fixed outer columns 3 of suction from the interior of the outer columns 3 while sucking air, lifted to approximately to the top of the columns in a shape of swallowing the bobbins 2 and remaining yarn left on the bobbins are sucked and removed in a pulling way.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a residual yarn removing device for a spinning machine bobbin.

[Conventional technology]

In a spinning factory, in order to streamline transportation, a rail is attached to the machine from the roving machine, roving bobbins are attached to the bobbin magazine, and the roving bobbins are conveyed simultaneously to the spinning machine. When an empty bobbin is returned to the roving machine, some roving remains on the bobbin.

This is because the bobbin is automatically fed and transported, and the roving is changed all at once, so approximately 20 to 40 g of roving remains per bobbin. This is called residual thread.

Traditionally, the remaining thread on the bobbin was manually fed into the bobbin case.
The direction was automatically aligned in the case, and the remaining thread was stripped from the end without turning the bobbin, or a person held each bobbin one by one and pulled out the remaining thread using the suction port.

[Problem to be solved by the invention]

In the conventional residual yarn removal method described above, when removing the residual yarn, the parts of the pond come into direct contact with the bobbin, resulting in scratches on the bobbin and residual yarn, which must be completely removed manually. Work such as removing it was necessary. In recent years, spinning machines have become longer and larger, and the number of spindles has increased from the traditional 400 spindles to 480 to 960 spindles. In proportion to this, it is required to process a large amount of remaining yarn in a short period of time.

In addition, with the conventional system, the remaining yarn had to be disposed of near the roving machine, and for this purpose, the empty bobbin had to be transported on a separate trolley to the roving machine, resulting in time loss and transportation. There was a waste of time and effort.

The present invention was proposed in view of the above-mentioned problems of the conventional residual yarn removing device, and its purpose is to remove the bobbin while the bobbin is suspended on the conveyance rail in the middle of the bobbin conveyance line. It is an object of the present invention to provide a device which enables removal of residual yarn from a bobbin without contact, and which can rationally carry out residual yarn removal processing of this type of bobbin in a short period of time.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a plurality of bobbins that are installed at a position directly below the middle of a conveyor rail and whose lower ends communicate with a suction chamber, in order to correspond to a plurality of bobbins that are conveyed in a suspended state on a conveyor rail. It is equipped with a fixed intake outer cylinder and an elevating intake nozzle, which is cylindrical in shape and has an inner diameter larger than the outer diameter of the bobbin, and is installed in each fixed intake outer cylinder so that it can be raised and lowered via an elevating means. be.

[Effect]

When the bobbin from which the remaining threads are to be removed is suspended on the transport rail and reaches the remaining thread removal position, the elevating suction nozzle is raised by the elevating means while sucking air, swallowing the bobbin from its lower end, and lifting the bobbin to its upper end. It rises to the vicinity and sucks up the remaining thread remaining on the bobbin. Next, the elevating suction nozzle descends to complete one cycle of residual yarn removal work. The empty bobbin is sent out on the conveyor rail to the spinning frame, the next bobbin is sent from the spinning machine, the remaining yarn is removed in the same way as above, and the same operation is repeated one after another. .

〔Example〕

FIG. 1 is a front view of the device of the present invention, FIG. 2 is a side view, and FIG. 3 is an enlarged vertical sectional front view of a part of the device in FIG.
In these figures, (1) is the transport rail, (2) is the bobbin, (3) is the fixed intake cylinder, (4) is the suction chamber, (5) is the elevating intake nozzle, and (6) is the elevating means. It shows.

The conveyor rail (1) is installed on the upper part of the machine between the spinning frame and the roving frame, and carries the bobbin (2) to the bobbin magazine (7).
).

The bobbin magazine (7) holds a plurality of bobbins (2) in double rows (the drawing shows two rows of five bobbins each, but the invention is not limited to this) at its upper end. It has a gripping tool (7d) for gripping, and a support rod (
A trolley (7d) is provided via 7c), and this trolley (7d)
is made to travel along a conveyor rail (1).

The fixed intake outer cylinder (3) is positioned directly below the conveyor rail (1) in correspondence with the plurality of bobbins (2) that are conveyed in a suspended state on the conveyor rail (1) via the bobbin magazine (7). The lower end communicates with the suction chamber (4).

Inside each fixed intake external ffi (3), an elevating intake nozzle (5) is installed so as to be movable up and down.

Each elevating intake nozzle (5) has its upper end connected to an elevating body (8).
The elevating body (8) moves up and down along the elevating guide (8a) with respect to the suction chamber (4) and the fixed intake cylinder (3) by elevating means (6) such as an air cylinder. It is possible.

The elevating intake nozzle (5) has a cylindrical shape with a larger diameter than the outer diameter of the bobbin (2), and is longer than the bobbin (2).

A seal backing (3a) is installed around the upper end of the fixed intake outer cylinder (3) to prevent intake air from leaking from the gap with the elevating intake nozzle (5). Also, fixed intake outside 1?
i (3) has an annular thin-blade orifice (3b
) is provided, and its throttling effect generates turbulent flow,
It strengthens the suction effect of remaining threads. For the same purpose, a communicating portion (4a) between the lower end of the fixed intake outer cylinder (3) and the sunburn chamber (4) also forms a communication hole smaller than the inner diameter of the fixed intake outer cylinder (3).

The suction chamber (4) has a suction duct (9) at the bottom.
) to an appropriate gAn machine (not shown), and is fixedly supported by pillars at the four corners.

Above the remaining yarn removal position where the fixed intake outer cylinder (3) and the elevating intake nozzle (5) are installed, there is a magazine conveying device (
10) is installed. This magazine transport device (lO)
As shown in FIGS. 4 to 6, the drive pulley (10a)
Two sets of conveyor belts (10c) stretched between the drive pulley (10b) and the driven pulley (10b) are used to clamp and convey a part of the bobbin magazine (7), and one of the drive pulleys (10a) , the other drive pulley (10a) is connected to a gear with the same number of teeth (10e) (
The conveyor belt (10C) is connected to a tension pulley (
10 f), and the bobbin magazine (7
) are placed opposite each other in order to ensure the clamping and conveyance of the parts. This presser plate (10g) is slidably supported by a support bracket (10i) via a support rod (10h), and is constantly applied with a pressing force by a spring (103).

The operation of the magazine transport device (10) is based on the transport rail (
1), the bobbin magazine (7) is carried in and positioned at a fixed position, and after the remaining thread removal operation is carried out, the magazine sensor (7) is placed on the transport rail (1)
(not shown) and a positioning stopper (11) are installed.

Further, the bobbin magazine (7) is connected by a connecting plate (not shown), and the connection point of this connecting plate is
Connected by a long hole and a bottle, only the length of this long hole,
There is play in the transport direction, and the pin allows the transport rail (
1) It is configured so that it can pass through the curved section.

The device of the present invention has the above configuration, and its operation will be explained next.

The magazine transport device (10) is a bobbin magazine (7)
The bobbin (2) is carried to the remaining yarn removal position using a flixilan while holding a part of the bobbin (2). When the magazine sensor detects that the bobbin magazine (7) has been carried into the fixed position, it is positioned and stopped by the stopper (11), and the elevating means (
6) to raise the elevating intake nozzle (5).

Intake air is applied to the suction chamber (4) at all times (or only when rising), and the elevating intake nozzle (5) rises to swallow each bobbin (2) from below each bobbin (2). The residual yarn remaining on the bobbin (2) is removed by suction so as to be pulled out from the bobbin (2). This operation absorbs the remaining yarn in almost a few seconds. Then, the elevating intake nozzle (5) descends, the stopper 7 (11) is released, the bobbin magazine (7) from which the remaining yarn has been removed is carried out by the magazine transport device (10), and the next bobbin magazine (7) is moved. is brought in and the same operations as above are repeated. All of the above operations can be performed automatically. Also, regarding items with different fibers,
The above-mentioned devices may be installed for each fiber, or lines can be exchanged and shared in one device. In this way, it is possible to install it at any position in the conveyance line, and automatic conveyance is also possible.

〔Effect of the invention〕

According to the present invention, the remaining yarn can be removed while the bobbin is suspended on the transport rail, the bobbin residual yarn can be efficiently removed in a short time, and the process can be carried out without contacting the bobbin. It does not damage the bobbin and can be installed anywhere in the conveyance line, so it has advantages such as being advantageous in terms of space.

[Brief explanation of the drawing]

Fig. 1 is a front view of the device of the present invention, Fig. 2 is a side view, Fig. 3 is an enlarged longitudinal sectional front view of a part of the device in Fig. 1, Fig. 4 is a plan view of the magazine conveying device, and Fig. 5 is a front view of the device of the present invention. The figure and FIG. 6 are sectional views taken along lines VV and -■ in FIG. 4. (1') - Transport rail, (2) - Bobbin, (3
)--Fixed intake cylinder, (4)--Success chamber - Elevating intake nozzle, (6") - Elevating means. Patent applicant Towa Kogyo Co., Ltd. Agent Shogo Ebara Fig. 2 Fig. 1 Figure 3

Claims (1)

[Claims] (1) Corresponding to the plurality of bobbins that are transported in a suspended state on the transport rail, it is installed at a position directly below the transport rail,
It has a plurality of fixed intake outer cylinders whose lower ends communicate with the suction chamber, and has a cylindrical shape with an inner diameter larger than the outer diameter of the bobbin, and is installed in each fixed intake outer cylinder so that it can be raised and lowered via a lifting means. A residual yarn removing device for a spinning machine bobbin, characterized in that it is equipped with an elevating suction nozzle.