CN211394802U - Double-rod common-weft cam harness box - Google Patents
Double-rod common-weft cam harness box Download PDFInfo
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- CN211394802U CN211394802U CN201921947364.5U CN201921947364U CN211394802U CN 211394802 U CN211394802 U CN 211394802U CN 201921947364 U CN201921947364 U CN 201921947364U CN 211394802 U CN211394802 U CN 211394802U
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- transmission
- weft
- connecting rod
- swinging block
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Abstract
The utility model relates to the technical field of textile machinery, in particular to a double-rod weft-sharing cam harness lifting box, which comprises a box body, a transmission gear set and two cam transmission mechanisms, wherein the box body is rotatably connected with an input shaft, an output shaft and two harness lifting driving shafts, and the harness lifting driving shafts are provided with connecting rod seats; the cam transmission mechanism comprises a first connecting rod, a second connecting rod, a first weft sharing cam, a second weft sharing cam, a first swinging block and a second swinging block, wherein the first weft sharing cam and the second weft sharing cam are fixed on an output shaft; the advantages are that: the chain transmission is replaced by the cam transmission, and a proper transmission ratio is obtained through the gear, so that the transmission speed can be greatly improved; simultaneously, the harness box of this application can put the installation from bottom to top, has reduced the joint gap greatly, has improved the stability of braider, is convenient for install and maintain.
Description
Technical Field
The utility model relates to the technical field of textile machinery, especially, relate to a two poles are latitude cam lifting box altogether.
Background
Shedding heald frames are an important part of knitting machines, and the prior art drafting drive mechanism generally adopts chain transmission and utilizes spring return, for example, the prior application 201410500978.4 of the applicant adopts the scheme, and the scheme has the following defects: chain drive makes rise to combine actuating mechanism's rotational speed can not be in further improvement to current rise to combine actuating mechanism for overhead installation, the joint gap is great, leads to stability relatively poor, also does not benefit to assembly and the later maintenance of earlier stage simultaneously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two poles are latitude cam lifting box altogether for improve lifting actuating mechanism's rotational speed and stability, and improve the convenience of assembly, maintenance.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a double-rod common-weft cam shedding box comprises a box body, a transmission gear set and two cam transmission mechanisms, wherein an input shaft, an output shaft and two shedding driving shafts are rotatably connected to the box body, a connecting rod seat is arranged on the shedding driving shafts, and two ends of the transmission gear set are respectively connected with the input shaft and the output shaft; the cam transmission mechanism comprises a first connecting rod, a second connecting rod, a first weft sharing cam, a second weft sharing cam, a first swinging block and a second swinging block, wherein the first weft sharing cam and the second weft sharing cam are fixed on an output shaft, the first swinging block and the second swinging block are rotatably connected with the box body, two ends of the first connecting rod are respectively hinged with the first swinging block and the second swinging block, two ends of the second connecting rod are respectively hinged with the first swinging block and the connecting rod seat, one side of the first swinging block is provided with a first transmission block matched with the first weft sharing cam, and one side of the second swinging block is provided with a second transmission.
Furthermore, the transmission gear set comprises an input gear fixed on the input shaft, a transmission shaft rotationally connected with the box body and an output gear fixed on the output shaft, and a first transmission gear meshed with the input gear and a second transmission gear meshed with the output gear are fixed on the transmission shaft.
Further, the transmission ratio between the input shaft and the output shaft is 1: 3.
Furthermore, the diameter ratio of the input gear, the first transmission gear, the second transmission gear and the output gear is 1:2: 1:1.5 in sequence.
Furthermore, the first connecting rod and the second connecting rod both comprise connecting blocks, two through holes are formed in the connecting blocks, screw rods penetrate through the through holes, nuts are connected to two sides of each screw rod, which are located in the through holes, in a threaded manner, one end, far away from the connecting blocks, of one screw rod is hinged to the first swinging block, and one end, far away from the connecting blocks, of the other screw rod is hinged to the connecting rod seat.
Furthermore, mounting grooves are formed in the first transmission block and the second transmission block, and rollers are arranged in the mounting grooves.
The utility model has the advantages that: the chain transmission is replaced by the cam transmission, and a proper transmission ratio is obtained through the gear, so that the transmission speed can be greatly improved; simultaneously, the harness box of this application can put the installation from bottom to top, has reduced the joint gap greatly, has improved the stability of braider, is convenient for install and maintain.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic view of the carton of FIG. 1 with the side wall panels removed;
FIG. 4 is a schematic view showing the construction of the cam gear;
FIG. 5 is a schematic view of a first link or a second link according to an embodiment of the present invention;
fig. 6 is a schematic view of the position of an embodiment of the invention in a weaving machine;
description of the reference symbols
The heald opening device comprises a box body 1, an input shaft 2, an output shaft 3, a heald opening driving shaft 4, a connecting rod seat 5, a connecting rod I6, a connecting rod II 7, a weft sharing cam I8, a weft sharing cam II 9, a swinging block I10, a swinging block II 11, a driving block I12, a driving block II 13, an input gear 14, an output gear 15, a transmission shaft 16, a transmission gear I17, a transmission gear II 18, a connecting block 19, a screw rod 20, a nut 21, a roller 22, a rotating shaft 23, an opening heald frame 24, a heald opening arm 25, a double-rod weft sharing cam heald opening box 26 and an opening left-right moving.
Detailed Description
The present invention will be described in further detail with reference to examples.
The embodiment provides a double-rod common-weft cam shedding box, which comprises a box body 1, a transmission gear set and two cam transmission mechanisms, wherein the box body 1 is rotatably connected with an input shaft 2, an output shaft 3 and two shedding driving shafts 4, the shedding driving shafts 4 are provided with connecting rod seats 5, and two ends of the transmission gear set are respectively connected with the input shaft 2 and the output shaft 3; the cam transmission mechanism comprises a first connecting rod 6, a second connecting rod 7, a first weft-sharing cam 8 and a second weft-sharing cam 9 which are fixed on an output shaft 3, a first swinging block 10 and a second swinging block 11 which are rotatably connected with the box body 1 (as shown in figure 3, the first swinging block 10 and the second swinging block 11 are rotatably connected with the box body 1 through a rotating shaft 23), one end of the first connecting rod 6 is hinged with the lower part of the first swinging block 10, the other end of the first connecting rod 6 is hinged with the upper part of the second swinging block 11, one end of the second connecting rod 7 is hinged with the upper part of the first swinging block 10, the other end of the second connecting rod is hinged with a connecting rod seat 5, one side of the first swinging block 10 is provided with a first transmission block 12 matched with the first weft-sharing cam 8, one side of the second swinging block 11 is provided with a second transmission block 13 matched with the second weft-sharing cam 9, the first transmission block 12, by arranging the roller 22, the contact between the weft sharing cam and the transmission block is rolling friction, so that the friction force between the weft sharing cam and the transmission block is reduced, and the smoothness of the operation of the cam transmission mechanism is improved.
The transmission gear set comprises an input gear 14 fixed on the input shaft 2, a transmission shaft 16 in rotary connection with the box body 1 and an output gear 15 fixed on the output shaft 3, wherein a first transmission gear 17 meshed with the input gear 14 and a second transmission gear 18 meshed with the output gear 15 are fixed on the transmission shaft 16, in the embodiment, the transmission ratio between the input shaft 2 and the output shaft 3 is 1:3, and preferably, the diameter ratio among the input gear 14, the first transmission gear 17, the second transmission gear 18 and the output gear is 1:2: 1:1.5 in sequence.
The first connecting rod 6 and the second connecting rod 7 in the embodiment both comprise a connecting block 19, two through holes are formed in the connecting block 19, screw rods 20 penetrate through the through holes, nuts 21 are in threaded connection on two sides of each screw rod 20, the end, far away from the connecting block 19, of one screw rod 20 is hinged to the first oscillating block 10, and the end, far away from the connecting block 19, of the other screw rod 20 is hinged to the connecting rod seat 5. By turning the nut 21, the length of the first connecting rod 6 or the second connecting rod 7 can be adjusted, so that the turning angle of the drafting drive shaft 4 is changed, and finally the amplitude of the up-and-down movement of the shedding heald frame 24 is changed.
The power transmission route of the embodiment is as follows: external power is transmitted to an input gear 14 through an input shaft 2, the input gear 14 transmits the power to an output shaft 3 through a transmission gear I17, a transmission gear II 18 and an output gear 15 in sequence, the output shaft 3 drives a weft sharing cam I8 and a weft sharing cam II 9 to rotate, a swinging block I10 and a swinging block II 11 are driven to swing back and forth under the action of a connecting rod I6 through the rotation of the weft sharing cam I8 and the weft sharing cam II 9, the swinging of the swinging block I11 drives a heald starting driving shaft 4 to rotate back and forth under the action of a connecting rod II 7, and as shown in figure 6, the back and forth rotation of the heald starting driving shaft 4 drives an opening 24 to move up and down through a heald starting arm 25. The embodiment can also adjust the amplitude and the frequency of the up-and-down motion of the shedding heald frame 24 by changing the shapes or the relative angles of the four weft sharing cams, replace chain transmission by cam transmission and obtain a proper transmission ratio by a gear so that the transmission speed can be greatly improved. In addition, because two sets of cam transmission mechanisms and two heald lifting driving shafts 4 are arranged, the two heald frames can be driven to move up and down respectively, and a user can adjust the up-and-down movement amplitude and frequency of the two heald frames respectively according to actual requirements.
The above embodiments are only used for explaining the concept of the invention, and not for limiting the protection of the invention, and any insubstantial modifications of the invention using this concept shall fall within the scope of the invention.
Claims (6)
1. The utility model provides a two poles are latitude cam drafting header altogether which characterized in that: the device comprises a box body, a transmission gear set and two cam transmission mechanisms, wherein an input shaft, an output shaft and two heald lifting driving shafts are rotatably connected to the box body, connecting rod seats are arranged on the heald lifting driving shafts, and two ends of the transmission gear set are respectively connected with the input shaft and the output shaft; the cam transmission mechanism comprises a first connecting rod, a second connecting rod, a first weft sharing cam, a second weft sharing cam, a first swinging block and a second swinging block, wherein the first weft sharing cam and the second weft sharing cam are fixed on an output shaft, the first swinging block and the second swinging block are rotatably connected with the box body, two ends of the first connecting rod are respectively hinged with the first swinging block and the second swinging block, two ends of the second connecting rod are respectively hinged with the first swinging block and the connecting rod seat, one side of the first swinging block is provided with a first transmission block matched with the first weft sharing cam, and one side of the second swinging block is provided with a second transmission.
2. A double bar co-weft cam draw-box according to claim 1, characterized in that: the transmission gear set comprises an input gear fixed on the input shaft, a transmission shaft rotationally connected with the box body and an output gear fixed on the output shaft, and a first transmission gear meshed with the input gear and a second transmission gear meshed with the output gear are fixed on the transmission shaft.
3. A double bar co-weft cam draw-box according to claim 1, characterized in that: the transmission ratio between the input shaft and the output shaft is 1: 3.
4. A double bar co-weft cam draw-box according to claim 2, characterized in that: the diameter ratio of the input gear, the first transmission gear, the second transmission gear and the output gear is 1:2: 1:1.5 in sequence.
5. A double bar co-weft cam draw-box according to claim 1, characterized in that: the first connecting rod and the second connecting rod both comprise connecting blocks, two through holes are formed in the connecting blocks, screw rods penetrate through the through holes, nuts are connected to two sides of each screw rod, which are located in the through holes, in a threaded manner, one end, far away from the connecting blocks, of one screw rod is hinged to the first swinging block, and one end, far away from the connecting blocks, of the other screw rod is hinged to the connecting rod seat.
6. A double bar co-weft cam draw-box according to claim 1, characterized in that: mounting grooves are formed in the first transmission block and the second transmission block, and idler wheels are arranged in the mounting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947364.5U CN211394802U (en) | 2019-11-12 | 2019-11-12 | Double-rod common-weft cam harness box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921947364.5U CN211394802U (en) | 2019-11-12 | 2019-11-12 | Double-rod common-weft cam harness box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211394802U true CN211394802U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921947364.5U Active CN211394802U (en) | 2019-11-12 | 2019-11-12 | Double-rod common-weft cam harness box |
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| CN (1) | CN211394802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529232A (en) * | 2021-08-10 | 2021-10-22 | 绍兴通用提花机械有限公司 | Improved generation plays heald case |
-
2019
- 2019-11-12 CN CN201921947364.5U patent/CN211394802U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529232A (en) * | 2021-08-10 | 2021-10-22 | 绍兴通用提花机械有限公司 | Improved generation plays heald case |
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