CN216972821U - Presser foot device in flat knitting machine - Google Patents
Presser foot device in flat knitting machine Download PDFInfo
- Publication number
- CN216972821U CN216972821U CN202220408567.2U CN202220408567U CN216972821U CN 216972821 U CN216972821 U CN 216972821U CN 202220408567 U CN202220408567 U CN 202220408567U CN 216972821 U CN216972821 U CN 216972821U
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- cam
- presser foot
- connecting rod
- motor
- oscillating bar
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Abstract
The utility model discloses a presser foot device in a flat knitting machine, which comprises a base, a motor and a presser foot transmission mechanism, wherein the motor is arranged in the middle of the base, the motor is provided with a motor shaft, one end of the motor shaft is connected with the presser foot transmission mechanism, the presser foot side of the motor is provided with a first mounting plate, and the middle of the first mounting plate is provided with a chute for a cam oscillating bar to slide in; the cam swing rod is provided with an elongated slot, the motor shaft penetrates through the elongated slot to be connected with the first cam, and the inner side of the first cam is a track surface. The utility model designs and changes the shape of the track surface of the first cam, namely, the state of the presser foot can be changed, so that various stations of the presser foot can be conveniently provided.
Description
Technical Field
The utility model belongs to the technical field of knitting machinery, and particularly relates to a presser foot device in a flat knitting machine.
Background
At present, a commonly used computerized flat knitting machine generally adopts a sinker cam to control the motion of a sinker to press a coil in the knitting process, so that the fabric can be ensured to descend smoothly, and the phenomena of floating yarn, needle collision and the like can not occur. However, the sinkers are distributed in the middle of the knitting needle, and positions which cannot be pressed exist in the pressing process, so that the actions of knitting, needle overturning and the like are influenced. Therefore, in the related art, a presser foot is used to press a stitch in order to prevent a floating yarn from striking a needle.
The applicant has filed a patent entitled "presser foot arrangement", application number 2012102710311, and the present application is a further improvement on this application. In the prior art, the presser foot device comprises a base, a motor, a presser foot transmission mechanism and a brush transmission mechanism, wherein the motor is arranged in the middle of the base, the motor is provided with a motor shaft, one end of the motor shaft is connected with the presser foot transmission mechanism, and the other end of the motor shaft is connected with the brush transmission mechanism; the two transmission mechanisms simultaneously control the movement of the presser foot and the brush. The drive mode of the presser foot is that the motor is directly driven by a connecting rod transmission mode, so that the presser foot only has two working positions and two non-working positions.
The applicant finds that the pressing amount required by the presser foot is different according to different fabrics, and shallow pressing and deep pressing can be adopted to avoid that the yarns are crushed due to insufficient pressing or excessive pressing. For this reason, more complex transmission mechanisms are required to provide more diverse working positions.
Disclosure of Invention
The utility model aims to provide a presser foot device in a flat knitting machine, which has more working positions.
Therefore, the technical scheme adopted by the utility model is as follows: the presser foot device in the flat knitting machine comprises a base, a motor and a presser foot transmission mechanism, wherein the motor is arranged in the middle of the base, the motor is provided with a motor shaft, and one end of the motor shaft is connected with the presser foot transmission mechanism, and the flat knitting machine is characterized in that:
a first mounting plate is arranged on the pressure foot side of the motor, and a sliding groove is formed in the middle of the first mounting plate and used for the cam oscillating bar to slide in; the cam oscillating bar is provided with a long groove, the motor shaft penetrates through the long groove to be connected with the first cam, and the inner side of the first cam is a track surface; a roller is fixed on the cam oscillating bar and clamped in the track surface; the motor shaft drives the first cam to rotate, and the cam oscillating bar is enabled to move in the sliding groove in a reciprocating mode through the roller; the presser foot transmission mechanism comprises a connecting rod group, the front end of the connecting rod group is fixedly connected with a presser foot, and the rear end of the connecting rod group is connected with a swing rod pin; one end of the cam oscillating bar is connected with a pressure rod, and an oscillating bar pin extends into a space between the cam oscillating bar and the pressure rod, moves along with the movement of the cam oscillating bar and drives the connecting rod group and the pressure foot to move;
the cam oscillating bar is rotatably connected with the pressure lever through a pivot; between the cam swing rod and the pressure lever, one side of the pivot is a space for accommodating the swing rod pin, and the other side is provided with a spring.
The connecting rod group comprises an F-shaped second connecting rod, the front end of a long rod of the connecting rod group is fixedly connected with a pressure foot, and two short rods are respectively and rotatably connected with the first connecting rod and the third connecting rod; the swing rod pin is connected with the first connecting rod and drives the first connecting rod to act.
When the presser foot pressing mechanism works, the rotation of the motor shaft drives the first cam to rotate, the rotation of the first cam is converted into the translation of the cam oscillating bar, and the oscillating bar pin is further used for pushing the connecting rod group to move, so that the movement of the presser foot is caused. It can be seen that the movement of the presser foot is determined by the shape of the profile of the trajectory of the first cam. It should be noted that the pivotal and spring connection between the cam rocker 27 and the strut 32 provides a resilient force to the cam rocker, which is more gentle on the rocker pin therebetween.
As is apparent from the above analysis, in the present invention, the state of the presser foot can be changed by designing and changing the shape of the trajectory surface of the first cam, and thus, various stations of the presser foot can be provided conveniently.
Drawings
Fig. 1 is an external view of the present invention on the presser foot side.
Fig. 2 is a schematic structural view of the present invention on the presser foot side.
Fig. 3 is a partial detail view of fig. 2.
The drawings are numbered as follows:
1-base, 2-motor, 3-presser foot, 4-brush, 5-motor shaft, 6-first mounting plate, 8 a-roller, 9-chute, 10-first cam, 17-first connecting rod, 18-second connecting rod, 19-third connecting rod, 20-presser foot pin, 21-set screw, 22-nut, 24-magnetic steel seat, 25-magnetic steel, 26-pendulum rod pin sleeve, 27-cam pendulum rod, 271-elongated slot, 28-spring 30-pendulum rod pin 31-pressure spring seat, 32-pressure rod and 33-pivot.
Detailed Description
See fig. 1. The figure shows the appearance of the utility model, comprising a base 1, a motor 2, a presser foot 3 and a brush 4, the motor position is defined as rear, the presser foot and brush position is defined as front, and the left side of the motor is the presser foot transmission mechanism.
See fig. 2, fig. 3. A first mounting plate 6 is arranged on the left side of the motor 2, and a sliding groove 9 is formed in the middle of the first mounting plate and used for the cam oscillating bar 27 to slide in; the cam oscillating bar is provided with a long groove 271, the motor shaft 5 passes through the long groove to be connected with the first cam 10, and the inner side of the first cam is a track surface; a roller 8a is fixed on the cam oscillating bar 27 and clamped in the track surface of the first cam 10; the motor shaft 5 drives the first cam 10 to rotate, and the cam oscillating bar 27 is enabled to reciprocate and translate in the chute 9 through the roller 8 a; one end of the cam oscillating bar 27 is connected with a pressure lever 32, and the cam oscillating bar 27 and the pressure lever 32 are rotatably connected through a pivot 33; between the cam swing link 27 and the pressing rod 32, a containing space is arranged below the pivot 33, and a pressure spring seat 31, a spring 28, a set screw 21 and a nut 22 are arranged above the containing space, so that the cam swing link 27 and the pressing rod 32 have elastic connection.
The presser foot transmission mechanism comprises a connecting rod group which consists of a first connecting rod 17, a second connecting rod 18 and a third connecting rod 19, wherein one end of the third connecting rod 19 is rotatably connected on the base 1, the second connecting rod 18 is F-shaped, the front end of a long rod of the second connecting rod is fixedly connected with the presser foot, and two short rods are respectively and rotatably connected with the first connecting rod 17 and the third connecting rod 19; the first link rod 17 is connected with a swing rod pin 30, and a swing rod pin sleeve 26 is arranged at the rear part of the swing rod pin 30, extends into the accommodating space between the cam swing rod 27 and the pressure rod 32, moves along with the movement of the cam swing rod 27, and drives the link rod group and the pressure foot to move.
The outer side of the first cam is provided with a magnetic steel seat 24 and magnetic steel 25, an encoder (not shown in the figure) is further arranged at the right corresponding position, and the encoder can sense the magnetic steel to determine the position of the presser foot in the rotating process of the motor.
The motion state of the presser foot is controlled by the track surface of the first cam, and the presser foot can have three stations of shallow working, deep working and non-working through the design of the track surface, so that the requirement of the flat knitting machine can be better met.
Claims (2)
1. The presser foot device in the flat knitting machine comprises a base, a motor and a presser foot transmission mechanism, wherein the motor is arranged in the middle of the base, the motor is provided with a motor shaft, one end of the motor shaft is connected with the presser foot transmission mechanism, and the flat knitting machine is characterized in that:
a first mounting plate is arranged on the pressure foot side of the motor, and a sliding groove is formed in the middle of the first mounting plate and used for the cam oscillating bar to slide in; the cam oscillating bar is provided with a long groove, the motor shaft penetrates through the long groove to be connected with the first cam, and the inner side of the first cam is a track surface; a roller is fixed on the cam oscillating bar and clamped in the track surface; the motor shaft drives the first cam to rotate, and the cam oscillating bar is enabled to move in the sliding groove in a reciprocating mode through the roller; the presser foot transmission mechanism comprises a connecting rod group, the front end of the connecting rod group is fixedly connected with a presser foot, and the rear end of the connecting rod group is connected with a swing rod pin; one end of the cam oscillating bar is connected with a pressure rod, and an oscillating bar pin extends into a space between the cam oscillating bar and the pressure rod, moves along with the movement of the cam oscillating bar and drives the connecting rod group and the pressure foot to move;
the cam oscillating bar is rotatably connected with the pressure lever through a pivot; between the cam swing rod and the pressure lever, one side of the pivot of the cam swing rod is a space for accommodating the swing rod pin, and the other side of the pivot is provided with a spring.
2. A presser foot device in a flat knitting machine according to claim 1, characterized in that: the connecting rod group comprises an F-shaped second connecting rod, the front end of a long rod of the connecting rod group is fixedly connected with a pressure foot, and two short rods are respectively and rotatably connected with the first connecting rod and the third connecting rod; the swing rod pin is connected with the first connecting rod and drives the first connecting rod to act.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220408567.2U CN216972821U (en) | 2022-02-28 | 2022-02-28 | Presser foot device in flat knitting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220408567.2U CN216972821U (en) | 2022-02-28 | 2022-02-28 | Presser foot device in flat knitting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216972821U true CN216972821U (en) | 2022-07-15 |
Family
ID=82355397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220408567.2U Active CN216972821U (en) | 2022-02-28 | 2022-02-28 | Presser foot device in flat knitting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216972821U (en) |
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2022
- 2022-02-28 CN CN202220408567.2U patent/CN216972821U/en active Active
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