CN215713713U - Weft yarn scissors device - Google Patents
Weft yarn scissors device Download PDFInfo
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- CN215713713U CN215713713U CN202121605659.1U CN202121605659U CN215713713U CN 215713713 U CN215713713 U CN 215713713U CN 202121605659 U CN202121605659 U CN 202121605659U CN 215713713 U CN215713713 U CN 215713713U
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- scissors
- shear
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- weft yarn
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Abstract
The utility model discloses a weft yarn scissor device which structurally comprises a driving cam, a pressing wheel, a driving support arm, a support seat, a connecting rod, a scissor seat assembly and a blade assembly. The weft yarn scissor device adopts the driving cam mechanism as driving, saves the installation space, and is simple to install and convenient to maintain; the pressing wheel pressed on the cam surface moves along the profile of the driving cam along with the rotation of the main shaft and the driving cam, the pressing wheel is arranged on the driving support arm, the driving support arm is driven to do vertical reciprocating motion, the locking pull rod is driven to do vertical reciprocating motion through the transmission of the connecting rod, and the movable shear shaft is driven to do reciprocating motion, so that the shearing action of closing and opening the movable shear is realized, and the shearing efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of textile machinery, in particular to a weft yarn scissor device.
Background
When the shuttleless loom weaves, the next weft can be woven by cutting off the weft after each weft is delivered. The exact cutting action of the scissors is the most important basis for the correct operation of the loom. In the prior art, a scissor device drives an eccentric wheel to rotate through a chain, and then the scissor can continuously open and close to cut off weft yarns; the structure finds the problems of complex structure, high price, easy damage, difficult and frequent maintenance and the like in the using process; the structure is flexible and quick, but is greatly influenced by the space of the loom, the volume and the quality of a motor, and the electronic scissors can not be used in many cases;
therefore, how to provide a weft yarn scissors device to achieve simple structure, convenient operation and adjustment and reliable operation is a technical problem to be solved urgently by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a weft yarn scissor device which is simple and reliable in structure, stable in operation and low in cost, and improves the operation and shearing quality of a weaving machine.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a green steelframe for building convenient to detach, its structure include with loom main shaft complex drive cam, pinch roller, drive support arm, supporting seat, connecting rod, scissors seat subassembly and blade subassembly, the drive support arm rotates with the supporting seat through the pivot to be connected, the pinch roller compresses tightly with the outer periphery of drive cam, drive support arm one end is connected with the pinch roller, and the other end is connected with the connecting rod lower extreme, the upper end of connecting rod is connected with scissors seat subassembly's movable scissors piece axle cooperation, blade subassembly is located scissors seat subassembly one end, and the movable scissors piece that moves in blade axle and the blade subassembly is cut in the up-and-down motion control of connecting rod opens and shuts.
Furthermore, the pinch roller rotates for a circle along the outer contour of the driving cam, and the scissors are controlled by the connecting rod and the movable scissors blade shaft to realize one-time shearing action.
Furthermore, a scissors moving support capable of adjusting the installation position of the scissors is arranged on one side of the scissors seat assembly.
Further, the scissors support assembly comprises a locking connecting rod, a scissors support and a movable scissors blade shaft, the movable scissors blade shaft is rotatably connected with the scissors support, one end of the locking connecting rod is connected with the middle of the movable scissors blade shaft, and the other end of the locking connecting rod is connected with the connecting rod.
Further, the blade assembly comprises a static shear blade assembly and a movable shear blade, the movable shear blade is connected with a movable shear blade shaft in the shear support assembly, and the static shear blade assembly is connected with one side of a shear support in the shear support assembly.
Further, quiet scissor blade subassembly includes quiet scissor blade and quiet scissor blade extension board, quiet scissor blade extension board is L shape elastic plate, and installs in scissors support one side, quiet scissor blade is installed with one side of quiet scissor blade extension board, the quiet scissor blade extension board one side top of installing quiet scissor blade is equipped with the cockscomb structure.
Furthermore, a compression spring which enables the pinch roller to cling to the driving cam surface constantly is arranged between the bottom surface of one end of the driving support arm and the support seat.
The utility model has the beneficial effects that:
1. the weft yarn scissor device adopts the driving cam mechanism as the driving, saves the installation space, and has simple installation and convenient maintenance; the pressing wheel pressed on the cam surface runs along the profile of the driving cam along with the rotation of the main shaft and the driving cam, the pressing wheel is arranged on the driving support arm to enable the driving support arm to do vertical reciprocating motion, the locking pull rod is driven to do vertical reciprocating motion through the transmission of the connecting rod, the shaft of the movable scissors is driven to do reciprocating motion, the cutting action of closing and opening the movable scissors is realized, the rotating speed of the driving cam is determined by the rotating speed of the main shaft, the cutting speed of the scissors is enabled to be consistent with the rotating speed of the main shaft, and the cutting efficiency is improved.
2. The adjustable scissors moving support is arranged, the shearing positions of the scissors can be adjusted forwards and backwards through different positions of the sliding scissors moving support, shearing of different looms or fabrics can be achieved, and the applicability is high.
Drawings
FIG. 1 is a view showing the structure of a weft cutter device according to the present invention
FIG. 2 is a schematic view showing the installation of the scissors driving device according to the present invention
FIG. 3 is a schematic view of the installation of the shear blade of the present invention
In the figure:
1. the scissors comprise a driving cam, 2 driving support arms, 3 supporting seats, 4 pressing wheels, 5 springs, 6 pressing wheel shafts, 7 rotating shafts, 8 connecting rods, 9 locking pull rods, 10 scissors supporting seats, 11 movable scissors blade shafts, 12 static scissors blade assemblies, 12.1 static scissors blades, 12.2 static scissors blade supporting plates, 13 movable scissors blades and 14 scissors moving supporting seats.
Detailed Description
The weft yarn scissors device of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and techniques are omitted so as to not unnecessarily limit the utility model.
As shown in fig. 1 to 3, the weft yarn scissor device of the utility model comprises a driving cam 1, a pinch roller 4, a driving support arm 2, a support seat 3, a connecting rod 8, a scissor seat assembly and a blade assembly, wherein the driving cam 1 is matched with a main shaft of a weaving machine, the middle part of the driving support arm 2 is rotatably connected with the support seat 3 through a rotating shaft 7, the pinch roller 4 is tightly pressed with the outer circumferential surface of the driving cam 1, the pinch roller 4 rotates along the outer circumferential surface of the driving cam when the driving cam 1 rotates, so that the driving support arm 2 reciprocates up and down, one end of the driving support arm 2 is connected with the pinch roller 4, the pinch roller 4 is rotatably connected with the end part of the driving support arm 2 through a pinch roller shaft 6, and the pinch roller shaft 6 sequentially penetrates through a pinch roller center hole and a through hole at the end part of the driving support arm and then is fastened; the other end of the driving support arm 2 is connected with the lower end of the connecting rod 8, and the connecting end of the driving support arm 2 and the connecting rod 8 penetrates through the mounting hole through a bolt and then is fastened through a nut. The upper end of the connecting rod is connected with a movable shear blade shaft of the shear seat assembly in a matching way, and the up-and-down movement of the connecting rod 8 controls the rotation of the movable shear blade shaft 11. The blade component is arranged at one end of the scissor seat component, and the vertical movement of the connecting rod 8 controls the opening and closing of the scissor blade shaft and the movable scissor blade in the blade component. The pinch roller 4 rotates a circle along the outer contour of the driving cam 1 to drive the supporting arm 2 to reciprocate up and down once, and the supporting arm 2 is driven to move up and down to drive the connecting rod 8 and the movable shear blade shaft to control the shear to realize a shearing action once.
In order to enable the pinch roller 4 to be pressed on the outer contour surface of the driving cam 1 constantly, a compression spring 5 which enables the pinch roller to be tightly attached to the driving cam surface constantly is arranged between the bottom surface of one end of the driving support arm 2 and the support seat 3, one end of the spring 5 is connected with the bottom of the groove in the support seat 3, the other end of the spring is connected with the bottom surface of the end part of the driving support arm 2, and the pinch roller is tightly pressed on the driving cam surface through the stretching force of the spring 5.
A scissors moving support 14 capable of adjusting the installation position of the scissors is arranged on one side of the scissors seat component. One side of the scissors moving support 14 is connected with the scissors support 10, the other side of the scissors moving support is provided with a sliding groove which can enable the scissors to be adjusted to the cutting position forwards and backwards, and the sliding scissors moving support 14 can adjust different mounting positions of the scissors.
The scissors support assembly comprises a locking pull rod 9, a scissors support 10 and a movable scissors blade shaft 11, the movable scissors blade shaft 11 is rotatably connected with the scissors support 10, one end of the locking pull rod 9 is connected with the middle of the movable scissors blade shaft 11, the other end of the locking pull rod 9 is connected with a connecting rod 8 through a bolt, the bolt penetrates through a mounting hole in the end part of the connecting rod and a mounting hole in the end part of the locking pull rod and is fastened through a nut, and the locking pull rod can be used for adjusting proper scissors opening and closing angle, so that the shearing requirements of different weaving machines or fabrics are met.
The blade assembly comprises a static scissor blade assembly 12 and a movable scissor blade 13, wherein the movable scissor blade 13 is made of wear-resistant materials, is arranged on the movable scissor shaft 11 and rotates along with the scissor shaft; the movable shear blade 13 is connected with a movable shear blade shaft 11 in the shear support assembly, and the movable shear blade shaft 11 rotates for a certain angle to drive the movable shear blade to realize opening and closing actions; the static shear blade component 12 is connected with one side of a shear support 10 in the shear support component, wherein the static shear blade component 12 comprises a static shear blade 12.1 and a static shear blade support plate 12.2, the static shear blade support plate is an L-shaped elastic plate and is installed on one side of the shear support, the static shear blade is installed on one side of the static shear blade support plate, a saw-toothed structure is arranged above one side of the static shear blade support plate, the saw-toothed structure blocks yarns when the yarns are sheared, and the yarns are prevented from sliding and shearing constantly. The movable shear blade and the static shear blade are required to be tightly attached together when being installed, and a gap is not required, so that weft yarns can be easily cut; the movable shear blade and the static shear blade are tightly attached by a certain pressing force by adjusting the position of the movable shear shaft.
The opening and closing of the scissors are controlled by matching the driving cam 1 and the pressing wheel 4, the power output of a motor can be saved, the main shaft of the weaving machine is directly used for rotating to output power to drive the cam,
the driving cam rotates for a circle, the scissors are opened and closed for a circle, the transmission rule of weft yarns is matched, the main shaft rotates for a circle, one weft yarn is transmitted from the left side to the right side, the weft yarn is pressed to the cloth surface by the reed, and the weft yarn is cut off when the scissors are closed when the reed completes beating-up. The utility model adopts the driving cam mechanism as the drive, saves the installation space, has simple installation and convenient maintenance, improves the working efficiency, has one production period of one rotation of the driving cam mechanism, and has the rotation speed of the driving cam determined by the rotation speed of the main shaft, so that the shearing speed of the scissors is consistent with the rotation speed of the main shaft, and the shearing efficiency is improved.
While the foregoing is directed to the principles of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Other technical features than those described in the specification are known to those skilled in the art.
Claims (7)
1. The utility model provides a woof scissors device, characterized by includes and drives cam, pinch roller, drive support arm, supporting seat, connecting rod, scissors seat subassembly and blade subassembly with loom main shaft complex, the drive support arm rotates through pivot and supporting seat to be connected, the pinch roller compresses tightly with the outer periphery of drive cam, drive support arm one end is connected with the pinch roller, and the other end is connected with the connecting rod lower extreme, the upper end of connecting rod is connected with scissors seat subassembly's movable scissors axle cooperation, blade subassembly is located scissors seat subassembly one end, and the movable scissors piece that moves among the up-and-down motion control scissors axle of connecting rod and the blade subassembly is opened and shut.
2. A weft yarn shearing device according to claim 1, wherein the pressure wheel rotates one circle along the outer contour of the driving cam to control the shear to realize one shearing action through the connecting rod and the movable shear blade shaft.
3. The weft yarn shearing device as claimed in claim 1, wherein a shear moving support capable of adjusting the mounting position of the shears is provided on one side of the shear seat assembly.
4. A weft yarn shearing device according to claim 1 or 3, wherein the shear base assembly comprises a locking link, a shear support and a movable shear blade shaft, the movable shear blade shaft is rotatably connected with the shear support, one end of the locking link is connected with the middle part of the movable shear blade shaft, and the other end of the locking link is connected with the link.
5. A weft yarn shearing device according to claim 1, wherein said blade assembly comprises a stationary blade assembly and a movable blade, said movable blade being pivotally connected to a movable blade shaft of the scissors carriage assembly, said stationary blade assembly being connected to one side of the scissors carriage assembly.
6. A weft yarn shearing device according to claim 5, wherein the static shearing blade assembly comprises a static shearing blade and a static shearing blade support plate, the static shearing blade support plate is an L-shaped elastic plate and is mounted on one side of the shear support, the static shearing blade is mounted on one side of the static shearing blade support plate, and a saw-toothed structure is arranged above one side of the static shearing blade support plate on which the static shearing blade is mounted.
7. A weft yarn shearing device as claimed in claim 1, wherein a compression spring is provided between the bottom face of one end of said driving arm and the support base for urging the pressing roller against the driving cam surface at all times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121605659.1U CN215713713U (en) | 2021-07-14 | 2021-07-14 | Weft yarn scissors device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121605659.1U CN215713713U (en) | 2021-07-14 | 2021-07-14 | Weft yarn scissors device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215713713U true CN215713713U (en) | 2022-02-01 |
Family
ID=79987181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121605659.1U Active CN215713713U (en) | 2021-07-14 | 2021-07-14 | Weft yarn scissors device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215713713U (en) |
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2021
- 2021-07-14 CN CN202121605659.1U patent/CN215713713U/en active Active
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