CN201136938Y - Flexible rapier weft insertion device for loom with core - Google Patents

Abstract

The utility model belongs to the field of textile machinery and relates to a flexible rapier weft insertion device for a loom with a core. Composed of yarn hook, sword belt storehouse and positioning adjustment sleeve, the lower part of the rack bar is provided with a rectangular slot, the rotor hole, the sword belt wheel is provided with gear teeth, and the sword belt is provided with a plurality of rectangular slots that move and cooperate with the sword belt wheel. There are through holes on the end face of the hole and the equal-diameter cam, the positioning adjustment sleeve is provided with an open groove, the platform, the platform hole, and the equal-diameter cam is installed on the main shaft of the loom. The rotor on the rack bar drives the rack bar up and down along the guide groove seat. Moving, the gear shaft on the rack bar drives the sword pulley to stop the reverse rotation, and the sword pulley drives the sword belt and the sword head to reciprocate and move horizontally. The sword pulley is installed on the loom wallboard through the pulley bracket. The belt warehouse is fixed on the pulley bracket and the loom wallboard. The utility model has the advantages of simple structure, convenient installation and debugging, saves equipment investment and improves production efficiency.

Description

Flexible rapier weft insertion device for loom with core

technical field

The utility model belongs to textile machinery, in particular to a flexible rapier weft insertion device for a loom with a core.

Background technique

At present, most of the shuttleless core looms use rigid rapier looms, and the weft insertion device uses rigid rapiers. At present, there are mainly the following types of mechanisms: one is the eccentric link type. Drive the eccentric connecting rod and oblique connecting rod through the transmission gear of the central shaft of the loom, and then drive the sword throwing plate to swing left and right through the angular swing arm. , complete the weft insertion. There is a slider at the lower part of the sword-throwing board that slides up and down in the slide seat. This kind of mechanism is relatively complicated and must move together with the sley, and the movement of the rapier has a relatively large idle stroke, and there is no pause time when locking the edge, and the lateral dimension of the loom is relatively large.

The other is the conjugate cam type. A pair of conjugate cams are installed on the main shaft of the loom, and the rigid rapier reciprocates along the direction of the reed through the two swing rods and the rocker connected together, and then through the straight connecting rod and the linear motion mechanism. Although this kind of mechanism can reduce the lost motion of the rapier and design a reasonable rapier motion law, it is often due to insufficient machining accuracy and wear of the conjugate cam mechanism, loose gaps between parts, and large inertial resistance of the rotating part. And other reasons, the stability of the rapier movement can not meet the ideal requirements.

Also have a kind of is cam, sector wheel type. Drive the swing arm through the cam and then make the sector wheel swing forward and reverse through the connecting rod. The shape of the sector wheel is that the upper part has teeth, and the lower part has a rotating central axis. One end of the connecting rod is hinged with the swing arm, and the other end is connected with the middle of the sector wheel. Splice. The teeth of the sector wheel mesh with the input gear of the sword transmission box, and finally the rigid rapier is reciprocated by the transmission sword wheel. At this time, the direction of rotation of the sector wheel was perpendicular to the direction of rotation of the sword-passing wheel. This kind of mechanism is complex, has many transmission parts, consumes a lot of energy, and needs to occupy a large space.

In order to overcome the shortcomings of the above rigid rapier weft insertion device and the deficiencies in the prior art, it is the purpose of the invention of the utility model.

Contents of the invention

In order to solve the above technical problems in the known technology, the utility model provides a flexible rapier weft insertion device for a loom with a core. The sley 15 and the reed 13 are composed of a pulley bracket 3, an equal diameter cam 10, a rack bar 1, a gear shaft 7, a sword pulley 2, a sword belt 4, a sword head 5, a yarn guide hook 14, and a sword belt storehouse 12 , a positioning adjustment sleeve 16, which is characterized in that the lower part of the rack bar 1 is provided with a rectangular groove 1a, a rotor hole 1b, the sword pulley 2 is provided with gear teeth 2a, and the sword belt 4 is equipped with A plurality of rectangular holes 4a, equal diameter cam 10 end faces are provided with through holes 10a, positioning adjustment sleeve 16 is provided with open groove 16a, platform 16b, platform hole 16c, threaded hole 16d, side threaded hole 16e, loom main shaft 9 Equivalent cam 10 is installed on the top, and the rotor 11 on the rack bar 1 drives the rack bar 1 to move up and down along the guide groove seat 8, and the tooth transmission gear shaft 7 on the rack bar 1 drives the sword pulley 2 to rotate forward and reverse. The sword belt wheel 2 drives the sword belt 4 and the sword head 5 to reciprocate and move horizontally, the sword belt wheel 2 is installed on the loom wallboard 6 through the belt wheel bracket 3, and the sword belt storehouse 12 is fixed on the belt wheel bracket 3 and the loom wallboard 6 on.

The utility model also adopts the following technical measures: an equal-diameter cam 10 containing a circular arc motion rule is set, and the bolt is adjusted and fixed with the positioning adjustment sleeve 16; the sword belt 4 is made of flexible material, and one end is connected and fixed with the sword head 5 The rapier belt 4 is installed on the loom box seat 15 and moves in the middle of a plurality of guide hooks 14 that are staggered and arranged parallel to the reed 13 of the loom.

The utility model has advantages and positive effects

The utility model has simple structure, convenient installation and debugging, saves equipment investment and improves production efficiency.

Description of drawings

Figure 1: Schematic rear view of the structure of the flexible rapier weft insertion device of the cored loom

Figure 2: Schematic right view of the structure of the flexible rapier weft insertion device of the cored loom

reference sign

6. Loom wall panel 9. Loom main shaft 13. Loom reed 15. Loom sley

1. Rack bar 2. Sword pulley 3. Pulley bracket 4. Sword belt 5. Sword head

7. Gear shaft 8. Guide groove seat 10. Equal diameter cam 10a, end face through hole

11. Rotor 12. Sword belt magazine 14. Yarn guide hook 16. Positioning adjustment sleeve

16a, open slot 16b, platform 16c, platform hole 16d, threaded hole,

16e, side threaded hole

Detailed ways

In order to further understand the content, characteristics and effects of the present utility model, and cooperate with accompanying drawing 1 to describe in detail as follows:

First of all, the corresponding parts should be made according to the drawings and technical requirements, and then the corresponding assembly and debugging should be carried out. Its emphasis is explained in detail: because the beating-up mechanism included in the belt-core loom is separated, and it is also one-way weft insertion, the weft insertion mechanism used does not swing together with the sley, so the pulley bracket 3 is fixed on the wallboard 6 . Gear shaft 7 is contained on the pulley support 3 by double-row bearing and bearing seat, and at this moment gear shaft 7 can rotate relative to pulley support 3. One end of the gear shaft 7 has a tooth shape, and the other end has a ladder. Using the positioning on the side of the ladder and the screw holes on the side, through the cooperation between the sword pulley 2 and the gear shaft and using a flange outside the sword pulley, use four screws to connect Sword pulley 2 and gear shaft 7 are fixed together. The rotation of the gear shaft is driven by the rack bar 1. The upper part of the rack bar 1 has teeth, and the lower part is equipped with two rotors matching the equal diameter cams with constant center distance. The rack bar 1 in the middle of the two rotors has a long slot 1a through which the main shaft of the loom passes. . When the main shaft 9 rotates, the rack bar 1 is driven by the equal-diameter cam 10 to move along the vertical direction specified by the guide groove seat 8, and the transmission gear shaft 7 finally drives the sword pulley 2 to rotate.

The location of equal-diameter cam 10 utilizes a positioning adjustment sleeve 16, which has an open groove 16a along the circular hole direction, one side of the groove has a screw hole, and the other side establishes a platform and a through hole, through the effect of the screw, so that Open slot 16a slit becomes smaller, and the positioning sleeve hugs the main shaft for positioning, and the equal-diameter cam is connected together with the positioning adjustment sleeve by screws, which can be adjusted easily.

When the sword belt wheel 2 rotates to drive the sword belt 4 to move, it is guided by the yarn guide hooks 14 installed on the sley 15 arranged in a staggered manner, so as to ensure reliable weft insertion. Sword belt 4 storage is installed among the sword belt warehouse 12 on the belt wheel support 3 and wallboard 6 after the sword head 5 retreats.

Claims (4)

1, a kind of Flexible Rapier in Inserting Weft device of belt carcass loom, comprise loom main shaft (9), wallboard (6), slay (15) and reed (13), by belt wheel support (3), constant diameter cam (10), rack bar (1), gear shaft (7), sword belt wheel (2), sword belt (4), sword head (5), twizzle (14), sword belt storehouse (12), the location is adjusted cover (16) and is formed, it is characterized in that rack bar (1) bottom is provided with rectangular groove (1a), rotor hole (1b), sword belt wheel (2) is provided with the gear teeth (2a), sword belt (4) is provided with a plurality of oblong aperture (4a) that cooperate with sword belt wheel (2) phase shift, constant diameter cam (10) end face is provided with through hole (10a), the location is adjusted cover (16) and is provided with open trough (16a), platform (16b), deck hole (16c), screwed hole (16d), side screwed hole (16e), constant diameter cam (10) is housed on the loom main shaft (9), driving rack bar (1) by the rotor (11) on the rack bar (1) moves up and down along gathering sill seat (8), tooth driving gearshaft (7) on the rack bar (1) drives (2) the forward and reverse rotation of sword belt wheel, sword belt wheel (2) drives sword belt (4) again and sword head (5) back and forth moves horizontally, sword belt wheel (2) is installed on the loom side (6) by belt wheel support (3), and sword belt storehouse (12) are fixed on belt wheel support (3) and the loom side (6).

2, the Flexible Rapier in Inserting Weft device of belt carcass loom according to claim 1 is characterized in that being provided with the constant diameter cam (10) that contains the circular curve characteristics of motion, adjusts cover (16) with bolt and location and cooperates adjustment fixing.

3, the Flexible Rapier in Inserting Weft device of belt carcass loom according to claim 1 is characterized in that sword belt (4) is a flexible material, and an end and sword head (5) are connected to a fixed.

4, the Flexible Rapier in Inserting Weft device of belt carcass loom according to claim 3 is characterized in that sword belt (4) and is installed on the loom slay (15), a plurality of staggered in opposite directions and be parallel to Loom reed (13) and move in the middle of the guide hook (14) arranged.