JPS594049Y2 - Suction device with scraper - Google Patents

Description

[Detailed description of the invention] A core yarn is supplied to the fleece discharged from the draft mechanism, and the fleece fibers are distributed around the core yarn, that is, the fleece is untwisted and the core yarn is distributed around the core yarn. Various types of spinning equipment are used, such as covered yarns and loop yarns, which are fixed by twisting them with a ring and a traveler without using a pressure thread, or core yarns which are twisted and fixed using a ring and a traveler without using a pressure thread. Yarn of good quality can be obtained by providing a core yarn supplying device as shown in FIG. 1 in front of the front bottom roller of the draft mechanism A from which the fleece is discharged.

The core yarn feeding device shown in Fig. 1 is a front bottom roller 1.
Along the front side of 1, insert a core thread guide 1 with a hollow crescent-shaped cross section.
2, and a core yarn supply hole 13 is provided on the upper surface of the central portion of the core yarn guide 12, and the core yarn 1 passes through the hollow portion from one end of the guide and is taken out from the supply hole.

Further, the guides are each attached to a traverse bar 14, and the traverse bar 14 is arranged to interlock with a traverse bar installed at a portion that supplies the thread to the draft mechanism A, so that the core yarn 1 is always kept in the front direction of the pair of fronts. The fibers of the fleece 2 can be supplied directly below the fleece 2 discharged from the rollers, and therefore the fibers of the fleece 2 can be easily and evenly distributed around the core yarn 1. It can prevent breakage and greatly reduce flying fibers.

However, even in the above-mentioned spinning device, it is necessary to install a needle nozzle on the front roller to prevent the fibers from wrapping around the roller, and a guide for the core yarn is present in front of the front bottom roller, and the fibers of the fleece are not scattered. Therefore, it is necessary to provide a specially constructed leech suction device.

The suction device of the present invention will be explained with reference to FIGS. 2 and 3 showing an embodiment thereof.

The Japanese leech suction device of the present invention has a long nose 21 which can be manually moved to the upper position shown in FIG. 2 or the lower position shown in FIG. 3.

Generally, a long nose has a suction hole facing forward at its tip, but the long nose of the present invention has a suction hole facing forward at its tip, and an elastic curved piece 22 is provided on the upper surface of the tip. , Suction holes 23 and 24 are respectively provided on the front upper surface and rear upper surface of the elastic body curved piece 22 on the top surface of the tip of the long nose 21, so that when the long nose 21 is raised, the tip of the elastic body curved piece 22 is connected to the front bottom roller 11. It acts as a scraper by touching the slightly rear lower surface of the
With the long nose 21 lowered, the front suction hole 23 is capable of suctioning the fleece discharged from the fleece discharge position in front of the front roller of the draft mechanism A, and is set at an appropriate distance convenient for operation, that is, 3 cm to 6 cm. It has a similar structure.

In the suction device with a scraper of the present invention, even when fleece fibers pass through the lower surface of the core yarn guide 12 and are sent in close contact with the front bottom roller 11 surface, the scraper is used to remove the fibers from the roller surface. The fibers that are suctioned by the front suction hole 23 and passed through the scraper 22 are also pulled off from the roller surface by the scraper, so that they can be effectively suctioned by the rear suction hole 24, and the winding of the fibers on the roller surface is almost completely prevented. It can be prevented.

In addition, since the tip of the long nose 21 does not have a suction hole in the forward direction, the fleece fibers are discharged from the front roller and are not attached to the surroundings of the core yarn at the end.Therefore, the binding force is small and the fleece fibers that are easily suctioned are sucked. Therefore, generation of defective yarns due to excessive suction of fleece fibers can be prevented.

In addition, when starting operation, the long nose 21 is placed in the lower position so that operations such as starting operation can be performed easily.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a state in which a core thread supply device is provided in front of a front bottom roller of a draft mechanism. 2 and 3 both show the suction device with a scraper of the present invention, FIG. 2 is a side sectional view when the long nose is in the upper position, and FIG. 3 is a side sectional view when the long nose is in the lower position. 1 is a core yarn, 2 is a fleece, 11 is a front bottom roller, 12 is a core yarn guide, 13 is a core yarn supply hole, 14 is a traverse bar, 21 is a long nose, 22 is an elastic bending piece-scraper, 23 is a front Suction hole, 24 is a rear suction hole.

Claims (1)

[Scope of utility model registration request] A core yarn guide 12 with a hollow crescent cross section is provided along the front surface of the front bottom rod 11 of the spinning machine, and a core yarn supply hole 13 is provided on the upper surface of the central part of the guide, and the core yarn 1 is inserted into the hollow from one end of the guide. A suction device for a spinning machine having a core yarn supplying device that passes through the inside of the spinning machine and is taken out from the supply hole, and has a long nose 21 that can be manually raised to an upper position or lowered to a lower position, An elastic curved scraper 22 is provided on the upper surface of the slightly distal end of the long nose, the front surface of the long nose is closed, and suction holes 23 are provided on the front upper surface and rear upper surface of the elastic curved scraper 22, respectively, on the upper surface of the long nose distal end. 24, and when the long nose 21 is in the upper position, the elastic curved piece scraper 22 is in contact with the slightly rear lower surface of the front bottom roller 11, and when the long nose 21 is in the lower position, the front suction holes 23 are arranged in a pair. A suction device with a scraper configured to be positioned downwardly from the front bottom roller by a distance that facilitates suction of the fleece 2 discharged from the front roller and facilitates thread splicing operations. .