SU895866A1 - Device for gripping and transporting filament by air flow - Google Patents

Description

(54) DEVICE FOR CAPTURE AND TRANSPORT OF THREADS BY AIR FLOW

The invention relates to the production of chemical fibers, namely, devices for the capture and transportation of filaments, which are installed on machines for forming rope-like synthetic fibers and used in the process of refilling the receiving devices.

In order to grip the yarns and bundles, a device is used in which the thread introduced into the device through the side groove is carried into the outlet channel by the air flow from the compressed air source through the nozzle 1.

However, the presence of an open groove in the device does not exclude the possibility of ejection from the air jet of the entire filament or filaments. In addition, such devices do not provide for cutting filament yarns. .

It is also known a device for capturing and transporting a yarn by air flow, comprising a housing — with channels for filling and exiting the yarn; a spring-loaded piston mounted in the housing perpendicular to the channel for introducing the yarn with the possibility of blocking this channel;

and cutting elements, one of which is located on the body, and the second - on the piston 2.

This device can reliably work only with relatively high numbers of threads, since the channel for insertion of the thread is cylindrical, and the operation of the device is based on injection. This device cannot be used to work with harnesses.

The aim of the invention is to expand

10 technological capabilities of the device.

For this purpose, the nozzle is made in the piston and placed on its axis, the channel for the exit of the thread is located coaxially to the piston, while the wall of the body has a groove forming

A channel 15 for threading, consisting of two adjacent sections, one of which is located perpendicular to the channel for the exit of the thread, and the other along it.

FIG. 1 shows the proposed device; in fig. 2 - the same, side view.

Claims (2)

The device comprises a cylindrical body 1, in which a nozzle unit 2 is movably placed, ultimately in the form of a piston 3 3 with a rod 4. In the lower part of the body f, a tube 6 with a channel for the exit of the thread is inserted through the adapter sleeve 5. In the middle part of this housing, a groove 7 is formed between the piston 3 and the bushing 5, forming a channel for insertion of the thread 8, consisting of two adjacent portions, one of which — slot 7a — is located perpendicular to the channel for outputting the thread, and the other — slot 76 - along it. In port 3, a tapering axial hole 9 is made, which is a nozzle, which communicates axial channel 10 with radial holes 11 in rod 4. The working cavity 12 of the housing is connected by pipe 13 with compressed air through a valve (not shown in the figures). The rod 4 is equipped with a spring return spring 14). The device has cutting elements, one of which 15 is located 1 {on the porishe 3 and the other 16 - on the bottom}) to the edge of the longitudinal slot 76 of the body 1 The device works as follows. For the captured drink, 8 is introduced into the device through the transverse slot 7a and placed in the slot 76. At that, the compressed air supply valve is opened (not shown in the figures), which enters the cavity 12 through the nozzle 13. FloA by the action of compressed air with the rod 3 4 moves to the sleeve 5. After the gap 3 closes the introductory section of the slit 7a for insertion of the thread, the holes 11 of the rod 4 will appear in the cavity 12 Compressed air through these holes and the channel 10 will flow to the nozzle 9. In the latter, the compressed air acquires high speed and when leaving it turned out After the cutting of the last rejuvenation elements 15 and 16, its free end is blown by the air flow into the sleeve 5 and further transported through tube 6 to the collection of the peak of fiber waste (not shown in the figures). After the thread FROM the device to the receiving unit of the machine, the compressed air supply valve closes and the spring 14 returns i to the starting position, freeing the slot 7a for inserting the thread. For fixing the block 2 in the initial position, a spring clamp can be used (not shown in the figures). Thus, the proposed device allows the thread to be injected directly into the air flow and to prevent the captured thread from escaping from under the stream of air. This ensures reliable operation of the device when capturing both single and harness filaments. The invention The device for capturing and transporting the yarn by air flow, comprising a housing with channels for filling and exiting the yarn, a spring-loaded piston mounted in the housing perpendicular to the channel for filling the yarn with the possibility of blocking this channel, an air nozzle and cutting elements, one of which is located on the body, and the second is on the pores, characterized in that, in order to expand the technological capabilities, the nozzle is made in the piston and placed on its axis, the channel for the exit of the thread is located coaxially nu rec this housing wall has a slot forming channel for threading, consisting of two mating portions, one of which is disposed perpendicular to the exit channel for the yarn, and the other therealong. Sources of information taken into account in the examination 1. For the Germany, No. 2419298, cl. B 65 N 51/16, 1977. 2. USSR author's certificate number 685602, cl. B 65 N 51/16, 1977 (nrototsht).