CN216550934U - Loom weft end clamping device - Google Patents

Abstract

A loom weft end clamping device belongs to the technical field of textile equipment; the driving shaft is connected with the weaving machine to rotate by arranging the power mechanism, the cam disc is driven, and the driving swing arm is driven, so that the connecting rod group is driven to push the swing plate to swing, and the weft is clamped; by arranging the reset mechanism, the compression spring in the reset mechanism is utilized, and after the driving swing arm is driven by the cam disc to be pressed downwards, the compression spring realizes quick reset of the driving swing arm, so that the clamping of the swing clamping plate at the next time is prevented from being influenced; the structure has simple and concise transmission path, fewer related parts and convenient adjustment of the swing angle of the swing plate.

Description

Loom weft end clamping device

Technical Field

The utility model belongs to the technical field of textile equipment, and particularly relates to a weft tail end clamping device of a weaving machine.

Background

The stretch yarn is mainly elastic and belongs to one of the textured yarns, and is characterized in that the stretch yarn can quickly rebound after being stretched. When the loom weaves the stretch yarn weft yarn, the weft shrinkage phenomenon easily occurs at the right selvedge because the elasticity of the stretch yarn is larger. Therefore, in order to avoid weft yarn rebounding at the end of weft insertion, a drawing force is required to straighten the weft yarn, and when the drawing force does not reach the force required by the elastic yarn, a weft shrinkage phenomenon is easy to occur. The existing solution is that a drafting nozzle is installed at the position where the loom finishes weft insertion, the drafting nozzle provides an air source by an independent air bag, and a drafting force is applied to flying weft yarn by using larger air pressure to ensure that the weft yarn can be straightened smoothly and prevent the weft shrinkage.

Disclosure of Invention

The utility model mainly solves the technical problems in the prior art and provides a weft end clamping device of a weaving machine.

The technical problem of the utility model is mainly solved by the following technical scheme: the utility model provides a loom weft end clamping device, includes power unit and fixture, fixture and power unit locate on same vertical plane, power unit includes a drive shaft and a mounting plate, be equipped with a cam disc in the drive shaft, cam disc and drive shaft fixed connection, be equipped with two first mounting brackets about on the first mounting plate side by side, two sets of erect a first pivot between the first mounting bracket, the both ends are rotated and are connected on two first mounting brackets about the first pivot, two be equipped with a initiative swing arm and a driven swing arm on the first pivot between the first mounting bracket, the initiative swing arm sets up towards the back, driven swing arm sets up forward, initiative swing arm and driven swing arm all with first pivot fixed connection, the outer end of initiative swing arm is equipped with a gyro wheel, the roller is rotationally connected with the driving swing arm, and the cam disc is attached to the outer ring surface of the roller.

Preferably, it is two sets of be equipped with a set of canceling release mechanical system on the first mounting plate of first mounting bracket front side, canceling release mechanical system includes the riser of being connected with first mounting plate, it is connected with a sleeve to rotate on the riser, sliding connection has a guide bar in the sleeve, the rear end of guide bar is equipped with an articulated frame, articulated frame is articulated to be connected in driven swing arm's outer end, the cover is equipped with compression spring on the guide bar between articulated frame and the sleeve.

As preferred, fixture includes the second mounting plate, be equipped with a board of wearing latitude on the second mounting plate, be equipped with a hole of wearing latitude in the board of wearing latitude, be equipped with a solid fixed splint on the second mounting plate on the hole right side of wearing latitude, the rear end of second mounting plate is equipped with two second mounting brackets, two be connected with a second pivot between the second mounting bracket, the both ends of second pivot are all rotated and are connected on two second mounting brackets, two be equipped with a swing board in the second pivot between the second mounting bracket, swing board and second pivot fixed connection, swing board's front end fixedly connected with swing splint.

Preferably, the right end of the first rotating shaft and the right end of the second rotating shaft are both provided with a connecting swing arm, the two connecting swing arms are fixedly connected with the corresponding first rotating shaft and the corresponding second rotating shaft, and a connecting rod group is connected between the two connecting swing arms.

Preferably, the connecting rod group comprises two connectors and an adjusting connecting rod, the connectors are connected to the two connecting swing arms in a rotating mode, and the two ends of the adjusting connecting rod are connected to the two connectors in a threaded mode.

Preferably, two surfaces of the fixed clamping plate and the swinging clamping plate, which are mutually attached, are provided with grooves which are matched with each other.

The utility model has the following beneficial effects: the driving shaft is connected with the weaving machine to rotate by arranging the power mechanism, the cam disc is driven, and the driving swing arm is driven, so that the connecting rod group is driven to push the swing plate to swing, and the weft is clamped; by arranging the reset mechanism and utilizing the compression spring in the reset mechanism, after the driving swing arm is driven by the cam disc to be pressed downwards, the compression spring realizes quick reset of the driving swing arm, so that the clamping of the next swing clamping plate is prevented from being influenced; through setting up connecting rod group, utilize connecting rod group directly to transmit the swing among the power unit to fixture, this structure transmission path is simple and succinct, and relevant part is less, and the swing angle of swing board is convenient to be adjusted.

Drawings

FIG. 1 is a front perspective view of the present invention;

fig. 2 is a schematic rear perspective view of the present invention.

In the figure: 1. a drive shaft; 2. a first mounting baseplate; 3. a first mounting bracket; 4. a first rotating shaft; 5. driving swing arms; 6. a driven swing arm; 7. a vertical plate; 8. a sleeve; 9. a guide bar; 10. a hinged frame; 11. a compression spring; 12. a second mounting baseplate; 13. a weft insertion plate; 14. a weft insertion hole; 15. fixing the clamping plate; 16. a second mounting bracket; 17. a second rotating shaft; 18. a swing plate; 19. swinging the clamping plate; 20. connecting the swing arm; 21. a connector; 22. adjusting the connecting rod; 23. a groove; 24. a cam plate.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

Example (b): the utility model provides a loom weft end clamping device, as shown in figure 1-figure 2, including power unit and fixture, fixture and power unit locate on same vertical plane, power unit includes a drive shaft 1 and a mounting plate 2, be equipped with a cam disc 24 on the drive shaft 1, cam disc 24 and drive shaft 1 fixed connection, it is equipped with two first mounting brackets 3 about on the first mounting plate 2 side by side, two sets of erect a first pivot 4 between the first mounting bracket 3, both ends are rotated and are connected on two first mounting brackets 3 about first pivot 4, two be equipped with a initiative swing arm 5 and a driven swing arm 6 on the first pivot 4 between the first mounting bracket 3, initiative swing arm 5 sets up towards the back, driven swing arm 6 sets up towards the front, initiative swing arm 5 and driven swing arm 6 all with first pivot 4 fixed connection, the outer end of the driving swing arm 5 is provided with a roller, the roller is rotationally connected with the driving swing arm 5, and the outer ring surfaces of the cam disc 24 and the roller are mutually attached; two sets of be equipped with a set of canceling release mechanical system on the first mounting plate 2 of 3 front sides of first mounting bracket, canceling release mechanical system includes a riser 7 of being connected with first mounting plate 2, it is connected with a sleeve 8 to rotate on the riser 7, sliding connection has a guide bar 9 in the sleeve 8, the rear end of guide bar 9 is equipped with an articulated frame 10, articulated frame 10 is articulated to be connected in the outer end of driven swing arm 6, the cover is equipped with compression spring 11 on the guide bar 9 between articulated frame 10 and the sleeve 8.

The clamping mechanism comprises a second mounting base plate 12, a weft insertion plate 13 is arranged on the second mounting base plate 12, a weft insertion hole 14 is formed in the weft insertion plate 13, a fixed clamping plate 15 is arranged on the second mounting base plate 12 on the right side of the weft insertion hole 14, two second mounting frames 16 are arranged at the rear end of the second mounting base plate 12, a second rotating shaft 17 is connected between the two second mounting frames 16, two ends of the second rotating shaft 17 are rotatably connected to the two second mounting frames 16, a swinging plate 18 is arranged on the second rotating shaft 17 between the two second mounting frames 16, the swinging plate 18 is fixedly connected with the second rotating shaft 17, and a swinging clamping plate 19 is fixedly connected to the front end of the swinging plate 18; the right end of the first rotating shaft 4 and the right end of the second rotating shaft 17 are both provided with a connecting swing arm 20, the two connecting swing arms 20 are both fixedly connected with the corresponding first rotating shaft 4 and the second rotating shaft 17, and a connecting rod group is connected between the two connecting swing arms 20; the connecting rod group comprises two connectors 21 and an adjusting connecting rod 22, the two connectors 21 are rotatably connected to the two connecting swing arms 20, and two ends of the adjusting connecting rod 22 are in threaded connection with the two connectors 21; and grooves 23 which are matched with each other are arranged on two surfaces, which are attached to each other, of the fixed clamping plate 15 and the swinging clamping plate 19.

The principle of the utility model is as follows: firstly, a driving shaft 1 is connected with a weaving machine, the driving shaft 1 is driven to rotate by the operation of the weaving machine, a cam disc 24 is driven to rotate by the rotation of the driving shaft 1, a driving swing arm 5 is driven to press downwards by the rotation of the cam disc 24, a first rotating shaft 4 is driven to rotate by the pressing downwards of the driving swing arm 5, a driven swing arm 6 and a connecting swing arm 20 in a power mechanism are driven to tilt upwards by the pressing downwards of the driving swing arm 5, a compression spring 11 is compressed and released after the driving swing arm 5 is driven to press downwards by the cam disc 24, the quick reset of the driving swing arm is realized, the connecting swing arm 20 in the power mechanism swings by a connecting rod group to drive a connecting swing arm 20 in a clamping mechanism to swing, so as to drive a second rotating shaft 17 to rotate, thereby driving a swing clamp plate 19 to swing, and the clamping of a weft is carried out by matching with a fixed clamp plate 15, and the position between the power mechanism and the clamping mechanism can be randomly adjusted in the same plane due to the connection between the power mechanism and the clamping mechanism through the connecting rod group, meanwhile, the adjusting connecting rod 22 is rotated, and both ends of the adjusting connecting rod are in threaded connection with the connecting head 21, so that the whole length of the connecting rod group can be changed through rotation, the angle between the two connecting swing arms 20 is changed, and the clamping force between the swing clamping plate 19 and the fixed clamping plate 15 is adjusted.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the utility model is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims (6)

1. The utility model provides a loom weft end clamping device, includes power unit and fixture, its characterized in that: the utility model discloses a clamping mechanism, including clamping mechanism and power unit, power unit includes a drive shaft (1) and first mounting panel (2), be equipped with a cam disc (24) on drive shaft (1), cam disc (24) and drive shaft (1) fixed connection, be equipped with two first mounting bracket (3) about on first mounting panel (2) side by side, two sets of erect a first pivot (4) between first mounting bracket (3), both ends are rotated and are connected on two first mounting bracket (3) about first pivot (4), two be equipped with a initiative swing arm (5) and a driven swing arm (6) on first pivot (4) between first mounting bracket (3), initiative swing arm (5) set up towards the back, driven swing arm (6) set up towards the front, initiative swing arm (5) and driven swing arm (6) all with first pivot (4) fixed connection, the outer end of the driving swing arm (5) is provided with a roller, the roller is rotationally connected with the driving swing arm (5), and the outer ring surfaces of the cam disc (24) and the roller are mutually attached.

2. A weft end holding device for a weaving machine according to claim 1, characterized in that: two sets of be equipped with a set of canceling release mechanical system on first mounting bracket (3) front side's first mounting plate (2), canceling release mechanical system includes riser (7) of being connected with first mounting plate (2), it is connected with one sleeve (8) to rotate on riser (7), sliding connection has a guide bar (9) in sleeve (8), the rear end of guide bar (9) is equipped with one and articulates frame (10), it connects in the outer end of driven swing arm (6) to articulate frame (10), the cover is equipped with compression spring (11) on guide bar (9) between articulated frame (10) and sleeve (8).

3. A weft end holding device for a weaving machine according to claim 1, characterized in that: the clamping mechanism comprises a second mounting base plate (12), a weft insertion plate (13) is arranged on the second mounting base plate (12), a weft insertion hole (14) is arranged in the weft insertion plate (13), a fixed clamping plate (15) is arranged on the second mounting base plate (12) on the right side of the weft insertion hole (14), two second mounting frames (16) are arranged at the rear ends of the second mounting bottom plates (12), a second rotating shaft (17) is connected between the two second mounting frames (16), both ends of the second rotating shaft (17) are rotatably connected to the two second mounting frames (16), a swinging plate (18) is arranged on the second rotating shaft (17) between the two second mounting frames (16), the swing plate (18) is fixedly connected with the second rotating shaft (17), and the front end of the swing plate (18) is fixedly connected with a swing clamping plate (19).

4. A weft end holding device for a weaving machine according to claim 3, characterized in that: the right-hand member of first pivot (4) and the right-hand member of second pivot (17) all are equipped with one and connect swing arm (20), two connect swing arm (20) all with first pivot (4) and second pivot (17) fixed connection that correspond, two be connected with connecting rod group between connecting swing arm (20).

5. A weft end holding device for a weaving machine according to claim 4, characterized in that: the connecting rod group comprises two connectors (21) and an adjusting connecting rod (22), the connectors (21) are connected to two connecting swing arms (20) in a rotating mode, and the two ends of the adjusting connecting rod (22) are connected to the two connectors (21) in a threaded mode.

6. A weft end holding device for a weaving machine according to claim 3, characterized in that: and grooves (23) which are matched with each other are arranged on two surfaces, which are attached to each other, of the fixed splint (15) and the swinging splint (19).

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