CN220284330U - Improved link mechanism for jacquard - Google Patents
Improved link mechanism for jacquard Download PDFInfo
- Publication number
- CN220284330U CN220284330U CN202321651972.8U CN202321651972U CN220284330U CN 220284330 U CN220284330 U CN 220284330U CN 202321651972 U CN202321651972 U CN 202321651972U CN 220284330 U CN220284330 U CN 220284330U
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- shaft
- eccentric
- transmission shaft
- swing
- pendulum
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- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses an improved link mechanism for a jacquard, which comprises two eccentric rotary members and a transmission shaft supported on a frame, wherein the frame is also sequentially supported with a first pendulum shaft and a second pendulum shaft, the frame is composed of two cross beams which are arranged in the weft direction, the transmission shaft is at least supported on one of the cross beams in the warp direction, and the first pendulum shaft and the second pendulum shaft are respectively supported on the two cross beams in the warp direction; a first connecting mechanism is arranged between the transmission shaft and the first swing shaft and consists of a first eccentric rotating member fixed on the transmission shaft, a first swing arm fixed on the first swing shaft and a first transverse connecting rod for connecting the first eccentric rotating member and the first swing arm; a second connecting mechanism is arranged between the transmission shaft and the second swing shaft and consists of a second eccentric rotating member coaxially fixed on the transmission shaft with the first eccentric rotating member, a second swing arm fixed on the second swing shaft and a single second transverse connecting rod for connecting the second eccentric rotating member and the second swing arm. The utility model has simple structure and few hinge points.
Description
[ field of technology ]
The utility model relates to an improved link mechanism for a jacquard machine, and belongs to the technical field of jacquard opening link mechanisms.
[ background Art ]
Referring to the low-weight high-stability jacquard machine with a short machine body with the application number of 202210309765.8, the movable crank 62a is movably mounted on the first longitudinal swing shaft 41, the driven crank 62b is fixed on the second longitudinal swing shaft 42, and when the motion of the second eccentric wheel 32 is transferred to the second longitudinal swing shaft 42, the second transverse connecting rod 52a, the movable crank 62a, the third transverse connecting rod 52b and the driven crank 62b need to be configured, and the number of connecting rods is up to 2 and the movable cranks 62a respectively used for hinging the two connecting rods have the defects of complex structure and multiple hinging points.
The frame of the existing jacquard machine is required to be provided with a bottom beam and a side wall plate fixed on the bottom beam, and the longitudinal rotating shaft and the longitudinal swinging shaft are supported on the side wall plate, so that the height of the jacquard machine body is limited, the machine body is difficult to develop towards flattening, and high-position vibration is generated when the longitudinal rotating shaft rotates and the longitudinal swinging shaft swings due to the height of the machine body, and the stability is poor.
[ utility model ]
The utility model aims to provide an improved link mechanism for a jacquard machine, which has the advantages of simple structure, few hinge points, small vibration and good stability.
Therefore, the utility model adopts the following technical scheme:
an improved linkage mechanism for jacquard, comprising two eccentric rotary members and a transmission shaft supported on a frame, a first pendulum shaft and a second pendulum shaft respectively parallel to the transmission shaft are also supported on the frame at intervals, the improvement is that: the frame consists of two cross beams which are parallel to each other and are arranged in the front weft direction and the back weft direction, the transmission shaft is at least supported on one of the cross beams in the warp direction, the first swing shaft and the second swing shaft are respectively supported on the two cross beams in the warp direction, the first swing shaft is close to the transmission shaft in the interval distance, and the second swing shaft is far from the transmission shaft in the interval distance; a first connecting mechanism for enabling the first pendulum shaft to swing is arranged between the transmission shaft and the first pendulum shaft, and is positioned near one of the two cross beams and consists of a first eccentric rotating member fixed on the transmission shaft, a first swing arm fixed on the first pendulum shaft and a first transverse connecting rod for connecting the first eccentric rotating member and the first swing arm; a second connecting mechanism for enabling the second pendulum shaft to swing is arranged between the transmission shaft and the second pendulum shaft, and is positioned near one of the cross beams and consists of a second eccentric rotating member coaxially fixed on the transmission shaft with the first eccentric rotating member, a second swinging arm fixed on the second pendulum shaft and a single second transverse connecting rod for connecting the second eccentric rotating member and the second swinging arm.
In order to increase the wide selectivity of the eccentric rotary members, the first eccentric rotary member and the second eccentric rotary member are eccentric wheels, or are eccentric cranks, or the first eccentric rotary member is an eccentric wheel and the second eccentric rotary member is an eccentric crank, or the first eccentric rotary member is an eccentric crank and the second eccentric rotary member is an eccentric wheel.
The utility model has the following positive advantages and beneficial effects:
in the second connecting mechanism, a single second transverse connecting rod is adopted, and the second eccentric rotating member and the second swing arm are directly connected through the single second transverse connecting rod, so that the structure is simple, and the number of hinge points is small.
The frame is composed of two cross beams which are parallel to each other and are arranged in the front weft direction and the back weft direction, the transmission shaft is at least supported on one cross beam in the warp direction, and the first swing shaft and the second swing shaft are respectively supported on the two cross beams in the warp direction, so that the machine body of the jacquard machine realizes flattening, and the machine body is in low-position vibration operation due to low vibration, and has good stability.
[ description of the drawings ]
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a top view of the present utility model (with the cross beam removed);
FIG. 3 is a perspective view of one direction of the present utility model (with the cross beam removed);
fig. 4 is a perspective view of another aspect of the utility model (with the cross beam removed).
[ detailed description ] of the utility model
Referring to fig. 1 to 4, an improved link mechanism for a jacquard machine, comprising a first eccentric rotary member 21, a second eccentric rotary member 31 and a transmission shaft 1 supported on a frame, on which a first pendulum shaft 4 and a second pendulum shaft 5 respectively parallel to the transmission shaft are also supported at intervals, is improved in that: the frame consists of two cross beams (namely a first cross beam 6 and a second cross beam 6') which are parallel to each other and are arranged in the front-back weft direction, the transmission shaft 1 is supported on one cross beam (shown as the first cross beam 6) at least in the warp direction, the first pendulum shaft 4 and the second pendulum shaft 5 are respectively supported on the two cross beams in the warp direction, the first pendulum shaft 4 is closely spaced from the transmission shaft 1, and the second pendulum shaft 5 is far from the transmission shaft 1; a first connecting mechanism 20 for swinging the first swing shaft is arranged between the transmission shaft 1 and the first swing shaft 4, and is positioned near one of the two cross beams (shown as a first cross beam 6), and consists of a first eccentric rotary member 21 fixed on the transmission shaft 1, a first swing arm 23 fixed on the first swing shaft 4 and a first transverse connecting rod 22 for connecting the first eccentric rotary member 21 and the first swing arm 23; a second connection 30 for swinging the second pivot axis is provided between the drive shaft 1 and the second pivot axis 5, said second connection being located in the vicinity of one of the cross beams (shown as first cross beam 6), and comprising a second eccentric rotary member 31 fixed coaxially to the first eccentric rotary member on the drive shaft 1, a second swing arm 33 fixed to the second pivot axis 5, and a single second transverse link 32 connecting the second eccentric rotary member 31 and the second swing arm 33.
The illustrated drive shaft 1 is of a short shaft construction, which is supported on a first cross member 6 and whose shaft ends extend beyond the first cross member; the first swing arm 23 is connected to the first cross link 22 by a hinge pin 24.
The second swing arm 33 is connected with the second transverse link 32 through a hinge pin 34, so that the advantage of fewer hinge points is achieved.
The arrangement direction of the first cross beam 6 and the second cross beam 6' is consistent with the weft direction of the loom; the axial directions of the transmission shaft 1, the first pendulum shaft 4 and the second pendulum shaft 5 are consistent with the warp direction of the loom; the first 22 and second 32 cross links are aligned with the weft direction of the loom.
The first eccentric rotary member 21 and the second eccentric rotary member 31 have the same eccentric amount, and the installation angles thereof are different by 180 degrees.
The first eccentric rotary member and the second eccentric rotary member are eccentric wheels (shown), or the first eccentric rotary member and the second eccentric rotary member are eccentric cranks, or the first eccentric rotary member is an eccentric wheel and the second eccentric rotary member is an eccentric crank, or the first eccentric rotary member is an eccentric crank and the second eccentric rotary member is an eccentric wheel.
Claims (2)
1. An improved link mechanism for jacquard, comprising two eccentric rotary members and a transmission shaft supported on a frame, a first pendulum shaft and a second pendulum shaft respectively parallel to the transmission shaft are also supported on the frame at intervals, characterized in that: the frame consists of two cross beams which are parallel to each other and are arranged in the front weft direction and the back weft direction, the transmission shaft is at least supported on one of the cross beams in the warp direction, the first swing shaft and the second swing shaft are respectively supported on the two cross beams in the warp direction, the first swing shaft is close to the transmission shaft in the interval distance, and the second swing shaft is far from the transmission shaft in the interval distance; a first connecting mechanism for enabling the first pendulum shaft to swing is arranged between the transmission shaft and the first pendulum shaft, and is positioned near one of the two cross beams and consists of a first eccentric rotating member fixed on the transmission shaft, a first swing arm fixed on the first pendulum shaft and a first transverse connecting rod for connecting the first eccentric rotating member and the first swing arm; a second connecting mechanism for enabling the second pendulum shaft to swing is arranged between the transmission shaft and the second pendulum shaft, and is positioned near one of the cross beams and consists of a second eccentric rotating member coaxially fixed on the transmission shaft with the first eccentric rotating member, a second swinging arm fixed on the second pendulum shaft and a single second transverse connecting rod for connecting the second eccentric rotating member and the second swinging arm.
2. The improved linkage for a jacquard machine according to claim 1, wherein: the first eccentric rotary member and the second eccentric rotary member are eccentric wheels or eccentric cranks, or the first eccentric rotary member is an eccentric wheel and the second eccentric rotary member is an eccentric crank, or the first eccentric rotary member is an eccentric crank and the second eccentric rotary member is an eccentric wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651972.8U CN220284330U (en) | 2023-06-21 | 2023-06-21 | Improved link mechanism for jacquard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651972.8U CN220284330U (en) | 2023-06-21 | 2023-06-21 | Improved link mechanism for jacquard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284330U true CN220284330U (en) | 2024-01-02 |
Family
ID=89325025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321651972.8U Active CN220284330U (en) | 2023-06-21 | 2023-06-21 | Improved link mechanism for jacquard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284330U (en) |
-
2023
- 2023-06-21 CN CN202321651972.8U patent/CN220284330U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |