CN220468318U - Weft yarn cutting device of weft knitting machine - Google Patents

Abstract

The utility model relates to the technical field of cutting devices, and discloses a weft yarn cutting device of a weft knitting machine. The weft yarn cutting device of the weft knitting machine comprises yarn passing blocks, blades and a screw rod, wherein the top of each yarn passing block is fixedly connected with a fixing plate, two fixing plates are provided with two fixing plates, an air cylinder is fixedly connected between the two fixing plates, the blades are arranged below the air cylinders, adjusting blocks are fixedly connected to two sides of each yarn passing block, the screw rod penetrates through the adjusting blocks, a mounting plate is fixed at the position of a weft knitting machine, weft yarns which participate in knitting penetrate through the yarn passing blocks, the rotating blocks rotate, the rotating blocks drive the screw rod to rotate, the adjusting blocks in threaded connection with the screw rod move outside the screw rod, and the distance between the yarn passing blocks and the mounting plate can be changed when the screw rod rotates due to the fact that one end of each adjusting block is fixedly connected with the yarn passing blocks, so that the cutting length of the weft yarns is adjusted according to use requirements, and the application range of the weft yarn cutting device is enlarged.

Description

Weft yarn cutting device of weft knitting machine

Technical Field

The utility model relates to the technical field of cutting devices, in particular to a weft yarn cutting device of a weft knitting machine.

Background

Weft knitting machine, knitting machine for knitting weft knitted fabric by feeding yarn to knitting needles along weft direction.

When weft knitting machine changes the weft, need use cutting device excision with the weft that connects previously, but current cutting device all can use fixed subassembly to fix in the device outside when using, consequently can only cut off weft at fixed length department when cutting, can't change cutting position for the device can't adapt to user's multiple user demand, and application scope is little.

Disclosure of Invention

The present utility model is directed to a weft cutting device for a weft knitting machine, which solves the above-mentioned problems.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a weft yarn cutting device of weft knitting machine, includes yarn piece, blade and lead screw, yarn piece top fixedly connected with fixed plate is crossed, the fixed plate is equipped with two, two fixedly connected with cylinder between the fixed plate, the cylinder below is equipped with the blade, yarn piece both sides fixedly connected with regulating block is crossed, it is equipped with to run through on the regulating block the lead screw, lead screw one end is equipped with the fixed block, the fixed plate is kept away from one side fixedly connected with mounting panel of lead screw, the mounting panel is close to one side fixedly connected with joint plate of fixed block.

Preferably, a telescopic block is movably connected to one side, close to the yarn passing block, of the air cylinder, and the top of the blade is fixedly connected to the bottom of the telescopic block.

Preferably, the yarn passing block is provided with a cutting groove, the top of the cutting groove penetrates through the top of the yarn passing block, and the blade is movably embedded in the cutting groove.

Preferably, the screw rod is in threaded connection with the adjusting block, and one end of the screw rod, which is far away from the fixed block, is fixedly connected with a rotating block.

Preferably, one end of the screw rod, which is close to the fixed block, is fixedly connected with an extension rod, and the outer part of the extension rod is fixedly connected with a rubber ring.

Preferably, a movable groove is formed in one side, close to the extension rod, of the fixed block, and the extension rod and the rubber ring are movably embedded in the movable groove.

Preferably, one end of the connecting plate, which is far away from the mounting plate, is fixedly connected with a positioning plate, and the screw rod penetrates through the positioning plate and is movably connected with the positioning plate.

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

the mounting plate is fixed at the thread feeding position of the weft knitting machine, weft threads participating in knitting pass through the yarn passing block, the rotating block is rotated, the rotating block drives the screw rod to rotate, and the adjusting block in threaded connection with the screw rod moves outside the screw rod.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

fig. 3 is a view showing a structure of a screw rod according to the present utility model.

Fig. 4 is a block diagram of a blade according to the present utility model.

Wherein: 1. yarn passing blocks; 2. a fixing plate; 3. a cylinder; 4. a blade; 5. a telescopic block; 6. cutting a groove; 7. an adjusting block; 8. a fixed block; 9. a mounting plate; 10. a splice plate; 11. a positioning plate; 12. a rotating block; 13. a screw rod; 14. an extension rod; 15. a rubber ring; 16. a movable 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.

Referring to fig. 1-4, a weft yarn cutting device of a weft knitting machine comprises a yarn passing block 1, a blade 4 and a screw rod 13, wherein a fixing plate 2 is fixedly connected to the top of the yarn passing block 1, two fixing plates 2 are arranged, an air cylinder 3 is fixedly connected between the two fixing plates 2, the blade 4 is arranged below the air cylinder 3, two sides of the yarn passing block 1 are fixedly connected with an adjusting block 7, the screw rod 13 penetrates through the adjusting block 7, one end of the screw rod 13 is provided with a fixing block 8, one side of the fixing plate 2, which is far away from the screw rod 13, is fixedly connected with a mounting plate 9, one side of the mounting plate 9, which is close to the fixing block 8, is fixedly connected with a connecting plate 10, the mounting plate 9 is fixed at the position of the weft knitting machine, the weft yarn which is involved in knitting passes through the yarn passing block 1, the rotating block 12 is rotated, and the screw rod 13 is driven to rotate by the rotating block 12, so that the distance between the yarn passing block 1 and the mounting plate 9 can be changed when the screw rod 13 rotates due to the fixed connection of one end of the adjusting block 7, and the weft yarn cutting length is further adjusted according to the use requirement.

Specifically, the cylinder 3 is close to one side swing joint that crosses yarn piece 1 and has flexible piece 5, and blade 4 top fixed connection is in flexible piece 5 bottom.

Through above-mentioned technical scheme, cylinder 3 can drive telescopic block 5 and reciprocate, and then makes blade 4 cut off the woof.

Specifically, the yarn passing block 1 is provided with a cutting groove 6, the top of the cutting groove 6 penetrates through the top of the yarn passing block 1, and the blade 4 is movably embedded in the cutting groove 6.

By the above technical solution, the cutting slot 6 is used to provide a space for the blade 4 to move up and down.

Specifically, the screw rod 13 is in threaded connection with the adjusting block 7, and one end of the screw rod 13, which is far away from the fixed block 8, is fixedly connected with a rotating block 12.

Through the technical scheme, the screw rod 13 can drive the adjusting block 7 in threaded connection with the screw rod to move when rotating.

Specifically, the screw rod 13 is close to the one end fixedly connected with extension rod 14 of fixed block 8, and extension rod 14 outside fixedly connected with rubber circle 15.

Through the above technical scheme, the rubber ring 15 is made of rubber, and friction force between the extension rod 14 and the movable groove 16 can be increased when the extension rod 14 rotates.

Specifically, a movable groove 16 is formed in one side, close to the extension rod 14, of the fixed block 8, and the extension rod 14 and the rubber ring 15 are movably embedded in the movable groove 16.

Through the technical scheme, the movable jogging can not influence the normal rotation of the screw rod 13 and the fixed block 8 at the same time of ensuring the connection.

Specifically, the end of the connecting plate 10 away from the mounting plate 9 is fixedly connected with a positioning plate 11, and a screw rod 13 penetrates through the positioning plate 11 and is movably connected with the positioning plate 11.

Through the technical scheme, the positions of the screw rods 13 can be limited by arranging the connecting plate 10 and the positioning plate 11, so that the screw rods are placed more stably.

When the weft yarn cutting device is used, the mounting plate 9 is fixed at the upper thread position of the weft knitting machine through the fastening piece, the weft yarn which is involved in knitting passes through the yarn passing block 1, the rotating block 12 is rotated, the rotating block 12 drives the screw rod 13 to rotate, the extension rod 14 and the rubber ring 15 rotate in the movable groove 16 when the screw rod 13 rotates, the rubber ring 15 is made of rubber, the friction force between the extension rod 14 and the movable groove 16 can be increased when the rubber ring rotates, the screw rod 13 is further stable when the screw rod rotates, the adjusting block 7 in threaded connection with the screw rod 13 can move outside the screw rod 13 when the screw rod 13 rotates, the distance between the yarn passing block 1 and the mounting plate 9 can be changed when the screw rod 13 rotates due to the fact that one end of the adjusting block 7 is fixedly connected with the yarn passing block 1, the cutting length of the weft yarn can be adjusted, the cylinder 3 is started through the external control terminal, the cylinder 3 can drive the blade 4 to descend through the telescopic block 5, and the weft yarn passing block 1 is cut off.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (7)

1. Weft yarn cutting device of weft knitting machine, including crossing yarn piece (1), blade (4) and lead screw (13), its characterized in that: the utility model discloses a yarn piece, including yarn piece (1), yarn piece (1) top fixedly connected with fixed plate (2), fixed plate (2) are equipped with two, two fixedly connected with cylinder (3) between fixed plate (2), cylinder (3) below is equipped with blade (4), yarn piece (1) both sides fixedly connected with regulating block (7) are crossed to the last lead screw (13) that runs through of regulating block (7), lead screw (13) one end is equipped with fixed block (8), fixed plate (2) are kept away from one side fixedly connected with mounting panel (9) of lead screw (13), mounting panel (9) are close to one side fixedly connected with joint board (10) of fixed block (8).

2. Weft yarn cutting device for a weft knitting machine according to claim 1, characterized in that: one side of the air cylinder (3) close to the yarn passing block (1) is movably connected with a telescopic block (5), and the top of the blade (4) is fixedly connected with the bottom of the telescopic block (5).

3. Weft yarn cutting device for a weft knitting machine according to claim 1, characterized in that: the yarn passing block (1) is provided with a cutting groove (6), the top of the cutting groove (6) penetrates through the top of the yarn passing block (1), and the blade (4) is movably embedded in the cutting groove (6).

4. Weft yarn cutting device for a weft knitting machine according to claim 1, characterized in that: the screw rod (13) is in threaded connection with the adjusting block (7), and one end, away from the fixed block (8), of the screw rod (13) is fixedly connected with a rotating block (12).

5. Weft yarn cutting device for a weft knitting machine according to claim 1, characterized in that: one end of the screw rod (13) close to the fixed block (8) is fixedly connected with an extension rod (14), and the outer part of the extension rod (14) is fixedly connected with a rubber ring (15).

6. Weft yarn cutting apparatus for a weft knitting machine as claimed in claim 5, characterized by: the side of the fixed block (8) close to the extension rod (14) is provided with a movable groove (16), and the extension rod (14) and the rubber ring (15) are movably embedded in the movable groove (16).

7. Weft yarn cutting device for a weft knitting machine according to claim 1, characterized in that: one end of the connecting plate (10) far away from the mounting plate (9) is fixedly connected with a positioning plate (11), and the screw rod (13) penetrates through the positioning plate (11) and is movably connected with the positioning plate (11).