CN210561052U

CN210561052U - Stitch driving device

Info

Publication number: CN210561052U
Application number: CN201920966544.1U
Authority: CN
Inventors: 金永良; 兰先川; 钱新华; 邱屹; 徐备松
Original assignee: Jiangsu Jinlong Technology Co Ltd
Current assignee: Jiangsu Jinlong Technology Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-19
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to a stitch device for a computer flat knitting machine, in particular to a stitch driving device, which comprises a slide block; the sliding seat is arranged on the sliding block; the first fixed shaft is arranged on one side of the sliding seat; the inner rotating piece is arranged on the first fixed shaft and is positioned inside the driving ring on the cam; the swing rod is rotatably arranged on the sliding seat and is positioned on one side of the first fixed shaft; the second fixed shaft is arranged at one end of the swing rod and is positioned on the same side of the sliding seat as the first fixed shaft; the outer rotating part is arranged on the second fixed shaft and is positioned outside the driving ring; one end of the spring is arranged at one end of the sliding seat, the other end of the spring is arranged at the other end of the swing rod, and the spring is used for pressing the driving ring on the inner rotating part. The device has simple structure and good buffering performance, can effectively aim at the driving device and the knitting needle when in firing pin, has the bearing difficult damage and has long service life.

Description

Stitch driving device

Technical Field

The utility model relates to a degree mesh device, especially degree mesh drive arrangement that computer flat knitting machine was used.

Background

Stitch devices are important components in flat knitting machines for controlling fabric density. The existing stitch clip is driven by matching two bearings with a cam, the cam is provided with a driving ring, the cam is connected with a motor, the two bearings are respectively positioned at two sides of the driving ring, the driving ring drives the bearings, the bearings drive a sliding block to reciprocate in a sliding groove of a triangular mother plate, the sliding block drives a needle pushing block to move, the bearings are limited in space, the diameter of each bearing is smaller than 10mm, the strength of each bearing is poor, the bearing at the inner side of the driving ring is smaller, the two bearings are fixed on the sliding block, the inner bearing and the outer bearing are uneven in stress along with the rotation of the driving ring, the bearing inside the driving ring is easy to damage, and the service life.

The existing stitch device is easy to damage a knitting needle or the stitch device when a needle is struck.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a degree mesh drive arrangement who has the buffering when can reducing bearing damage, bearing long service life, firing pin, concrete technical scheme is:

the stitch driving device comprises a slide block; the sliding seat is arranged on the sliding block; the first fixing shaft is arranged on one side of the sliding seat; an inner rotating member mounted on the first fixed shaft, the inner rotating member being located inside the driving ring on the cam; the swing rod is rotatably arranged on the sliding seat and is positioned on one side of the first fixed shaft; the second fixed shaft is arranged at one end of the swing rod and is positioned on the same side of the sliding seat as the first fixed shaft; the outer rotating part is arranged on the second fixed shaft and is positioned outside the driving ring; and one end of the spring is arranged at one end of the sliding seat, the other end of the spring is arranged at the other end of the swing rod, and the spring is used for pressing the driving ring on the inner rotating piece.

By adopting the technical scheme, when the needle is stricken, the stitch of the knitting needle collides with the bottom of the needle pushing block, so that the bottom of the needle pushing block is subjected to the acting force of the stitch, the acting force is directly transmitted to the bearing arranged on the swing rod, the swing rod is changed into elastic connection, the impact force of instant impact can be effectively relieved, and the whole stitch driving device has the advantages of buffering and difficult damage.

Preferably, the inner rotating member and the outer rotating member are both bearings or bushings.

Through adopting above-mentioned technical scheme, the axle sleeve does not have inner circle, outer lane and ball, therefore the intensity of axle sleeve is better, and is not fragile.

Preferably, the bearing or the shaft sleeve adopted by the inner rotating part is consistent with the bearing or the shaft sleeve adopted by the outer rotating part in specification.

By adopting the technical scheme, the bearings with the same rule have consistent strength, and the condition that the small bearings are damaged firstly due to uneven stress can be avoided.

Preferably, the swing rod further comprises a washer, and the washers are respectively positioned between the inner rotating piece and the sliding seat and between the outer rotating piece and the swing rod.

By adopting the technical scheme, when the bearing is adopted, the gasket avoids the friction between the outer ring of the bearing and the sliding seat or the swing rod.

Preferably, one end of the sliding seat is provided with a first fixing column, and the first fixing column is used for fixing one end of the spring; and a second fixing column is arranged at the other end of the oscillating bar and used for fixing the other end of the spring.

Through adopting above-mentioned technical scheme, first fixed column and second fixed column limit spring's position prevents that the spring from droing.

Preferably, the sliding seat is provided with a first pin hole and a second pin hole; a fourth pin hole, a fifth pin hole and a sixth pin hole are formed in the sliding block; a seventh pin hole and an eighth pin hole are formed in the push pin block; the first pin shaft is inserted into the first pin hole of the sliding seat and the fourth pin hole of the sliding block respectively; the second pin shaft is respectively inserted into a fifth pin hole of the sliding block and a seventh pin hole on the push pin block; and the third pin shaft is respectively inserted into the second pin hole of the sliding seat, the sixth pin hole of the sliding block and the eighth pin hole of the push pin block.

Through adopting above-mentioned technical scheme, sliding seat and slider are through two round pin axle location, and slider and push pin piece also are through two round pin axle location, assurance positioning accuracy that can be accurate.

The third pin shaft is respectively connected with the sliding seat, the sliding block and the push pin block, so that the structure is simplified, and the positioning precision is improved.

Preferably, still include the axis of rotation, the axis of rotation is the step shaft, the axis of rotation is including setting gradually and diameter reduce in proper order the primary shaft, secondary shaft and third axle, the top of primary shaft is equipped with interior hexagonal hole, the primary shaft is used for restricting the axial position of pendulum rod, the secondary shaft is used for rotating with the pendulum rod and is connected, be equipped with the screw thread on the third axle, the third axle is used for fixing on the sliding seat.

Through adopting above-mentioned technical scheme, axis of rotation simple to operate.

Compared with the prior art the utility model discloses following beneficial effect has:

the utility model provides a degree mesh drive arrangement simple structure, shock-absorbing capacity are good, can effectively degree mesh drive arrangement and knitting needle, bearing not fragile, long service life when the firing pin.

Drawings

FIG. 1 is a schematic view of the construction of a stitch drive;

FIG. 2 is an exploded view of the stitch drive;

FIG. 3 is a schematic view of the arrangement of the connection of the stitch drive to the motor and cam;

fig. 4 is a schematic structural diagram of the stitch drive connected with the motor, the cam and the triangular mother plate.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 4, the stitch drive device includes a slider 2; the sliding seat 1 is arranged on the sliding block 2; a first fixing shaft 62, the first fixing shaft 62 being installed at one side of the sliding seat 1; an inner rotating member 61, the inner rotating member 61 being mounted on the first fixed shaft 62, the inner rotating member 61 being located inside the driving ring 931 on the cam 93; the swing rod 3 is rotatably arranged on the sliding seat 1 and is positioned on one side of the first fixed shaft 62; the second fixed shaft 52 is installed at one end of the swing rod 3, and is positioned at the same side of the sliding seat 1 as the first fixed shaft 62; an outer rotating member 51, the outer rotating member 51 being mounted on the second fixed shaft 52, the outer rotating member 51 being located outside the driving ring 931; and a spring 4, one end of the spring 4 is installed at one end of the sliding seat 1, the other end of the spring 4 is installed at the other end of the swinging rod 3, and the spring 4 is used for pressing the driving ring 931 onto the inner rotating member 61.

Specifically, the sliding block 2 is slidably mounted in a sliding groove 941 on the triangular motherboard 94, and the sliding block 2 is connected with the push pin block 91; the cam 93 is provided with a driving ring 931, the cam 93 is connected with a motor 92, the inner rotating member 61 and the outer rotating member 51 are respectively located at two sides of the driving ring 931, the driving ring 931 drives the inner rotating member 61 and the outer rotating member 51, the inner rotating member 61 and the outer rotating member 51 drive the slider 2 to reciprocate in a sliding groove 941 of the triangular mother plate 94, and the slider 2 drives the push pin block 91 to reciprocate.

When the needle is hit, the stitch of the knitting needle collides with the bottom of the needle pushing block 91, so that the bottom of the needle pushing block 91 is subjected to the acting force of the stitch, and the acting force is directly transmitted to the bearing arranged on the swing rod 3, the swing rod 3 is changed into elastic connection, the impact force of instant impact can be effectively relieved, and the whole stitch driving device has the advantages of buffering and difficult damage.

Both the inner rotor 61 and the outer rotor 51 are bearings or bushings.

The shaft sleeve is not provided with an inner ring, an outer ring and balls, so that the shaft sleeve is high in strength and not easy to damage.

The inner rotor 61 uses bearings or bushings of the same size as those used for the outer rotor 51. The bearings with the same rule have consistent strength, and the condition that the small bearings are damaged firstly due to uneven stress can be avoided.

And the device also comprises a gasket 53, and the gasket 53 is respectively positioned between the inner rotating piece 61 and the sliding seat 1 and between the outer rotating piece 51 and the swing rod 3. When the bearing is adopted, the washer 53 prevents the outer ring of the bearing from rubbing against the sliding seat 1 or the swing rod 3.

One end of the sliding seat 1 is provided with a first fixing column 13, and the first fixing column 13 is used for fixing one end of the spring 4; the other end of the swing rod 3 is provided with a second fixing column 31, and the second fixing column 31 is used for fixing the other end of the spring 4. The first fixing column 13 and the second fixing column 31 limit the position of the spring 4 and prevent the spring 4 from falling off.

A first pin hole 11 and a second pin hole 12 are arranged on the sliding seat 1; a fourth pin hole 21, a fifth pin hole 22 and a sixth pin hole are formed in the sliding block 2; a seventh pin hole 911 and an eighth pin hole 912 are arranged on the push pin block 91; the sliding seat further comprises a first pin shaft 81, and the first pin shaft 81 is respectively inserted into the first pin hole 11 of the sliding seat 1 and the fourth pin hole 21 of the sliding block 2; the second pin shaft 82 and the second pin shaft 82 are respectively inserted into the fifth pin hole 22 of the sliding block 2 and the seventh pin hole 911 of the push pin block 91; the third pin shaft 83 and the third pin shaft 83 are respectively inserted into the second pin hole 12 of the sliding seat 1, the sixth pin hole of the sliding block 2 and the eighth pin hole 912 of the push pin block 91.

The sliding seat 1 and the sliding block 2 are positioned through two pin shafts, and the sliding block 2 and the push pin block 91 are also positioned through two pin shafts, so that the positioning precision can be accurately ensured.

The third pin shaft 83 is respectively connected with the sliding seat 1, the sliding block 2 and the push pin block 91, so that the structure is simplified, and the positioning precision is improved.

The sliding block 2 is connected with the sliding seat 1 through a screw 84.

Still include axis of rotation 54, axis of rotation 54 is the step shaft, and axis of rotation 54 is including setting gradually and diameter reduce in proper order the primary shaft, secondary shaft and third axle, and the top of primary shaft is equipped with interior hexagonal hole, and the primary shaft is used for restricting the axial position of pendulum rod 3, and the secondary shaft is used for rotating with pendulum rod 3 and is connected, is equipped with the screw thread on the third axle, and the third axle is used for fixing on sliding seat 1. The rotating shaft 54 facilitates installation.

Claims

1. The stitch driving device comprises a slide block; it is characterized by also comprising

The sliding seat is arranged on the sliding block;

the first fixing shaft is arranged on one side of the sliding seat;

an inner rotating member mounted on the first fixed shaft, the inner rotating member being located inside the driving ring on the cam;

the swing rod is rotatably arranged on the sliding seat and is positioned on one side of the first fixed shaft;

the second fixed shaft is arranged at one end of the swing rod and is positioned on the same side of the sliding seat as the first fixed shaft;

the outer rotating part is arranged on the second fixed shaft and is positioned outside the driving ring; and

and one end of the spring is arranged at one end of the sliding seat, the other end of the spring is arranged at the other end of the swinging rod, and the spring is used for pressing the driving ring on the inner rotating piece.

2. The stitch drive of claim 1, wherein the inner and outer rotatable members are bearings or bushings.

3. The stitch drive of claim 2, wherein said inner rotatable member is formed with bearings or bushings of a size consistent with the bearings or bushings of said outer rotatable member.

4. The stitch drive of claim 3, further comprising washers positioned between the inner rotatable member and the sliding seat and between the outer rotatable member and the swing link, respectively.

5. The stitch driving device according to claim 1, wherein one end of the sliding seat is provided with a first fixing post for fixing one end of a spring;

and a second fixing column is arranged at the other end of the oscillating bar and used for fixing the other end of the spring.

6. The stitch drive according to claim 1, wherein the sliding block defines a first pin hole and a second pin hole;

a fourth pin hole, a fifth pin hole and a sixth pin hole are formed in the sliding block;

also comprises

The push pin block is provided with a seventh pin hole and an eighth pin hole;

the first pin shaft is inserted into the first pin hole of the sliding seat and the fourth pin hole of the sliding block respectively;

the second pin shaft is respectively inserted into a fifth pin hole of the sliding block and a seventh pin hole on the push pin block; and

and the third pin shaft is respectively inserted into the second pin hole of the sliding seat, the sixth pin hole of the sliding block and the eighth pin hole of the push pin block.

7. The stitch driving device according to claim 1, further comprising a rotating shaft, wherein the rotating shaft is a stepped shaft, the rotating shaft comprises a first shaft, a second shaft and a third shaft, the first shaft, the second shaft and the third shaft are sequentially arranged, the diameters of the first shaft and the third shaft are sequentially reduced, a hexagonal socket is arranged at the top of the first shaft, the first shaft is used for limiting the axial position of the swing rod, the second shaft is used for being rotatably connected with the swing rod, a thread is arranged on the third shaft, and the third shaft is used for being fixed on the sliding seat.