CN219568193U - Pneumatic weft insertion device of loom - Google Patents

Abstract

The utility model discloses a pneumatic weft insertion device of a loom, which comprises a weft accumulator body, a yarn guide ring and a main nozzle, wherein a hollow shaft motor is arranged in the center of the left end of the weft accumulator body, a yarn outlet pipe with an included angle is arranged on an output shaft of the hollow shaft motor, a wire winding part is fixed in the center of the right end of the weft accumulator body through a bracket, the wire winding part is cylindrical, a plurality of wire passing grooves with equal intervals are formed in the right end of the wire winding part in a penetrating manner, grooves are formed in the wire winding part at the intervals of the adjacent wire passing grooves, a telescopic rubber film is sealed and adhered to the notch of the grooves, the outer surface of the telescopic rubber film is of an anti-skid structure, an air port communicated with the grooves is formed in the end part of the wire winding part, a flow equalizing device is fixed at the end part of the wire winding part, an air outlet pipe corresponding to the air port is arranged at the end part of the flow equalizing device, and the flow equalizing device is connected with an air inlet pipe. The beneficial effects are that: when weft insertion is stopped, the speed of weft yarns can be slowed down first, then the whole weft yarns are tightly supported and stopped, the weft yarns are prevented from being damaged by compression, and broken yarns are reduced.

Description

Pneumatic weft insertion device of loom

Technical Field

The utility model belongs to the technical field of textile machinery, and particularly relates to a pneumatic weft insertion device of a loom.

Background

The loom uses air flow to realize weft insertion, and the air flow is sprayed out from the nozzle of the main nozzle, and the auxiliary nozzle sprays air flow to guide weft yarn into the profiled reed groove, so that the weft yarn and warp yarn are interwoven into fabric.

When the weft insertion device at present needs to stop weft insertion, the weft insertion device needs to be pressed down on the weft yarn of the filament winding part by the pressing sheet on the weft storage device to play a stop role, but because the weft yarn is in a high-speed motion state before stopping, and the filament winding part is of a circular structure, when the pressing sheet presses the weft yarn from the upper part to stop, only the top weft yarn can be pressed, the weft yarn is easy to be damaged, and yarn breakage is caused when serious.

Disclosure of Invention

The utility model aims to provide a pneumatic weft insertion device of a loom, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pneumatic weft insertion device of loom, includes weft accumulator body, guide ring and main nozzle, weft accumulator body left end center is equipped with hollow shaft motor, be equipped with rather than the play spool that exists the contained angle on the hollow shaft motor output shaft, weft accumulator body right-hand member center is fixed with the wire winding piece through the support, the wire winding piece is the tube-shape, the wire winding piece right-hand member link up and is equipped with a plurality of equally spaced wire passing grooves, the wire winding piece is equipped with and is located adjacently wire passing groove interval department's recess, the recess notch seals and glues has flexible rubber membrane, flexible rubber membrane surface is anti-skidding structure, wire winding piece tip is equipped with the intercommunication the gas port of recess, wire winding piece tip is fixed with flow straightener, flow straightener tip be equipped with the outlet duct that the gas port corresponds, flow straightener is connected with the intake pipe.

Preferably, the flow equalization device is of a double-layer shell structure, a plurality of rings of check rings for sealing the inner shell and the outer shell are arranged in the flow equalization device, air holes are formed in the check rings, and the air holes of each adjacent check ring are not corresponding.

Preferably, a control valve is arranged on the air inlet pipe.

Preferably, the outer end of the flow equalization device is provided with a plurality of side ears along a circle of intervals, screw holes are formed in the side ears, screw holes corresponding to the side ears are formed in the end portions of the wire winding pieces, and the flow equalization device is fixed to the wire winding pieces through screws.

Preferably, the air outlet pipe has certain elasticity and is connected with the air port in an interference fit manner.

Preferably, the groove opening is provided with a lap joint groove in a circle, the edge of the telescopic rubber film is stuck on the lap joint groove, and the outer surface of the telescopic rubber film is lower than the outer surface of the wire winding piece.

Compared with the prior art, the utility model has the beneficial effects that:

1. when weft insertion is stopped, the speed of weft yarns can be slowed down first, then the whole weft yarns are tightly supported and stopped, the weft yarns are prevented from being damaged by compression, and broken yarns are reduced.

Drawings

FIG. 1 is a schematic diagram of a front view of the present utility model;

FIG. 2 is a schematic side view of a wire wrap, gas port of the present utility model;

FIG. 3 is a schematic diagram of the flow equalizer, the air outlet pipe and the air inlet pipe of the present utility model;

FIG. 4 is a schematic diagram of the sectional structure of the flow equalizer, the air outlet pipe and the air inlet pipe of the present utility model;

fig. 5 is a schematic view of the structure of the wire wrapping member, the groove, and the overlapping groove of the present utility model.

In the figure: 1. a weft accumulator body; 2. a yarn guide ring; 3. a main nozzle; 4. a hollow shaft motor; 5. a yarn outlet tube; 6. a wire winding member; 7. a yarn passing groove; 8. a groove; 9. a flexible rubber membrane; 10. an air port; 11. a flow equalizing device; 12. an air outlet pipe; 13. an air inlet pipe; 14. a retainer ring; 15. a control valve; 16. a lateral ear; 17. and (5) overlapping the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a pneumatic weft insertion device of loom, includes weft accumulator body 1, yarn guide ring 2 and main nozzle 3, weft accumulator body 1 left end center is equipped with hollow shaft motor 4, be equipped with on the output shaft of hollow shaft motor 4 rather than the play spool 5 that has the contained angle, weft accumulator body 1 right-hand member center is fixed with wire winding 6 through the support, wire winding 6 is the tube-shape, wire winding 6 right-hand member link up and be equipped with a plurality of equally spaced wire passing grooves 7, wire winding 6 is equipped with and is located adjacently wire passing groove 7 interval department's recess 8, recess 8 notch seals and glues flexible rubber membrane 9, flexible rubber membrane 9 surface is anti-skidding structure, wire winding 6 tip is equipped with the intercommunication recess 8's gas port 10, wire winding 6 tip is fixed with flow straightener 11, flow straightener 11 tip be equipped with outlet duct 10 corresponds, flow straightener 11 is connected with intake pipe 13. When weft insertion is performed, weft yarn passes through the left end of the yarn winding piece 6 and then enters the right end of the yarn winding piece 6 to be wound through the yarn passing groove 7, and then is guided backwards through the main nozzle 3 after passing through the yarn guide ring 2, the hollow shaft motor 4 drives the yarn winding pipe 5 to rotate, so that the weft yarn can be prevented from falling from the yarn winding piece 6 when the weft is inserted into the right end of the yarn winding piece 6 through the winding of the left end of the yarn winding piece, then an external air source is connected through the yarn passing groove 7 when weft insertion is required to be stopped, high-pressure air flows through the air equalizing device 11 to uniformly enter the air outlet pipe 12 after air inflow, and then enters each groove 8, so that the telescopic rubber film 9 bulges outwards, the friction resistance born by the whole weft yarn at the right end is gradually increased until the whole weft is tightly supported and stopped, the speed of the weft yarn can be slowed down firstly and then the whole weft yarn is tightly supported and stopped when weft insertion is stopped, and broken yarns are avoided.

Specifically, the flow equalization device 11 has a double-layer shell structure, a plurality of rings of check rings 14 for sealing the inner and outer shells are arranged in the flow equalization device 11, air holes are formed in the check rings 14, and the air holes of each adjacent check ring 14 are not corresponding; in this embodiment, the high pressure air is blocked by the retainer ring 14 and dispersed through each air hole, and then uniformly enters the air outlet pipe 12 after being dispersed through the air holes of the plurality of retainer rings 14.

Specifically, the air inlet pipe 13 is provided with a control valve 15; in the present embodiment, the air flow rate of the intake pipe 13 can be controlled by the control valve 15.

Specifically, the outer end of the flow equalization device 11 is provided with a plurality of side lugs 16 along a circle of intervals, screw holes are formed in the side lugs 16, screw holes corresponding to the side lugs 16 are formed in the end parts of the wire winding pieces 6, and the flow equalization device 11 is fixed on the wire winding pieces 6 through screws; in this embodiment, the installation and removal of the flow equalizer 11 at the end of the wire winding member 6 can be achieved by mounting screws on the side ears 16.

Specifically, the air outlet pipe 12 has a certain elasticity and is connected with the air port 10 in an interference fit manner; in this embodiment, the tightness is improved by the interference fit connection of the outlet pipe 12 and the air port 10.

Specifically, a lap joint groove 17 is formed in a circle of the notch of the groove 8, the edge of the telescopic rubber film 9 is stuck on the lap joint groove 17, and the outer surface of the telescopic rubber film 9 is lower than the outer surface of the wire winding piece 6; in this embodiment, the surface of the wire winding 6 is thus not exposed when the telescopic rubber film 9 is not inflated with high pressure air flow, and the weft insertion is not affected.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

Working principle: when weft insertion is performed, weft yarn passes through the left end of the yarn winding piece 6 and then enters the right end of the yarn winding piece 6 to be wound through the yarn passing groove 7, and then is guided backwards through the main nozzle 3 after passing through the yarn guide ring 2, the hollow shaft motor 4 drives the yarn winding pipe 5 to rotate during weft insertion, the weft yarn can be prevented from falling from the yarn winding piece 6 through the yarn passing groove 7 when weft insertion is performed at the right end of the yarn winding piece 6, then an external air source is connected through the air inlet pipe 13 when weft insertion is required to be stopped, after air is introduced, high-pressure air flows through the check ring 14 to be blocked and dispersed through each air hole, and then uniformly enters the air outlet pipe 12 after being dispersed through the air holes of the plurality of check rings 14, and then enters each groove 8, so that the telescopic rubber film 9 bulges outwards, and the friction resistance to which the weft yarn at the whole right end is subjected to is gradually increased until the tightening stop, so that when weft insertion is stopped, the speed of the weft yarn can be slowed down, the tightening stop is performed, the weft yarn is prevented from being broken, and broken.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a pneumatic weft insertion device of loom, its characterized in that, including weft accumulator body (1), guide ring (2) and main nozzle (3), weft accumulator body (1) left end center is equipped with hollow shaft motor (4), be equipped with on the output shaft of hollow shaft motor (4) rather than having spool (5) of contained angle, weft accumulator body (1) right-hand member center is fixed with wire winding piece (6) through the support, wire winding piece (6) are the tube-shape, wire winding piece (6) right-hand member link up and are equipped with a plurality of equally spaced silk grooves (7), wire winding piece (6) are equipped with be located adjacently wire groove (7) interval department recess (8), recess (8) notch seal is glued there is flexible rubber membrane (9), flexible rubber membrane (9) surface is anti-skidding structure, wire winding piece (6) tip is equipped with the intercommunication recess (8) flow equalizing (10), wire winding piece (6) tip is fixed with device (11), device (11) tip is equipped with and corresponds air inlet duct (12) flow equalizing device (13).

2. The pneumatic weft insertion device for the loom according to claim 1, wherein the flow equalizing device (11) is of a double-layer shell structure, a plurality of rings of check rings (14) for sealing the inner shell and the outer shell are arranged in the flow equalizing device (11), air holes are formed in the check rings (14), and the air holes of every two adjacent check rings (14) are not corresponding.

3. A pneumatic weft insertion device for a weaving machine according to claim 1, characterized in that the air inlet pipe (13) is provided with a control valve (15).

4. The pneumatic weft insertion device for the loom according to claim 1, wherein a plurality of side ears (16) are arranged at the outer end of the flow equalization device (11) along a circle of intervals, screw holes are formed in the side ears (16), screw holes corresponding to the side ears (16) are formed in the end portions of the wire winding pieces (6), and the flow equalization device (11) is fixed to the wire winding pieces (6) through screws.

5. A pneumatic weft insertion device for a loom according to claim 1, characterized in that said air outlet duct (12) has a certain elasticity and is connected with said air port (10) by interference fit.

6. A pneumatic weft insertion device for a loom according to claim 1, characterized in that the notch of the groove (8) is provided with a lap joint groove (17), the edge of the telescopic rubber film (9) is stuck on the lap joint groove (17), and the outer surface of the telescopic rubber film (9) is lower than the outer surface of the wire winding piece (6).