CN111118708B - Unilateral yarn shearing device for double-rapier loom and application method thereof - Google Patents
Unilateral yarn shearing device for double-rapier loom and application method thereof Download PDFInfo
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- CN111118708B CN111118708B CN202010158707.0A CN202010158707A CN111118708B CN 111118708 B CN111118708 B CN 111118708B CN 202010158707 A CN202010158707 A CN 202010158707A CN 111118708 B CN111118708 B CN 111118708B
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- seat
- adjusting rod
- guide
- scissor
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/70—Devices for cutting weft threads
Abstract
The invention relates to a unilateral yarn shearing device for a double-sword-pole loom and an application method thereof.A first adjusting rod and a second adjusting rod are both arranged on an adjusting rod mounting seat, wherein the first adjusting rod is horizontally arranged and is used for being connected with a cross beam of the double-sword-pole loom, and the second adjusting rod is vertically arranged; the guide seat is connected with the lower end of the second adjusting rod, the scissor seat and the guide seat are installed together, the scissor blade can be driven by power to move up and down and is positioned between the scissor seat and the guide seat and moves down, the scissor blade is exposed from the bottom of the scissor seat to cut weft yarns and moves up, and the scissor blade extends into the scissor seat; the weft yarn guide hook is connected with the guide seat, is positioned on one side of the guide seat, works with the dent of the double-sword-rod loom in a matching way, and is used for guiding the weft yarn to the position below the scissor seat. The single-side yarn shearing device is reasonable and simple in structural design, low in failure rate, and capable of reducing the waste weft edge at one end of the cloth and saving raw materials by being installed on one side of the double-rapier loom.
Description
Technical Field
The invention relates to the field of rapier looms, in particular to a single-side yarn shearing device for a double-rapier loom and an application method thereof.
Background
The rapier loom is widely applied to the textile and silk weaving industries, is a current universal machine, slightly different and subdivided in machine types, sizes and the like according to the difference of industry types, the difference of processing sizes, the difference of processing raw materials and the like, but the working principles are consistent, and the final cloth or silk fabric is woven by longitudinal warp yarns and transverse weft yarns according to the working sequence of the yarns.
Rapier looms are classified into single-rapier looms and double-rapier looms according to the number of the rapier. The single rapier guides weft yarns from one side of a shed to the other side, belongs to a modified narrow loom, and the accessories of the single rapier loom have simple structure, but cannot meet the requirement of wide use and are rarely applied at present; the double rapier is completed by the rapier at two sides of the shed, so that the width of the rapier loom is greatly improved, and the double rapier is widely adopted at present.
The weft yarn scissors of the double-rapier loom are arranged in a way of being consistent with double-rapier bars, namely weft yarn inlets on two sides of a rapier are respectively provided with a scissors device, weft yarns are cut off by a yarn cutter of the scissors devices after weaving of a single weft yarn, and in the method, the yarn cutter and reed teeth of the rapier loom are at a certain distance (generally 4-5 cm), so that weft yarn waste with certain size and length can be generated at two ends of cloth and silk fabrics, the cost of common yarns can be ignored, but for real silk, each silk thread is saved by 4-5cm, which means that the annual total yield of a single machine is increased by 2.5% (the width of the double-rapier loom is generally about 1.5-2 m), and the yield is increased and the saving is larger. In addition, the existing weft scissors are complex in structure and easy to break down, for example, the patent with the publication number of CN201660743U discloses a weft shearing device of a rapier loom, which comprises an upper scissors assembly and a lower scissors assembly, and is complex in structure and troublesome in installation and debugging.
Therefore, there is a need for a single-side yarn shearing device for a double-rapier loom and an application method thereof, which can reduce the waste edge of weft at one end of cloth and save raw materials.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a single-side yarn shearing device for a double-rapier loom, which has a reasonable structural design and can save raw materials, and an application method thereof.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a unilateral yarn device of cutting for two rapier weaving machines which characterized in that: the weft yarn guide device comprises a first adjusting rod, a second adjusting rod, an adjusting rod mounting seat, a shear blade, a shear seat, a weft yarn guide hook and a guide seat; the first adjusting rod and the second adjusting rod are both arranged on the adjusting rod mounting seat, the first adjusting rod is horizontally arranged and used for being connected with a cross beam of the double-sword-rod weaving machine, and the second adjusting rod is vertically arranged; the guide seat is connected with the lower end of the second adjusting rod, the scissor seat and the guide seat are installed together, the scissor blade can be driven by power to move up and down and is positioned between the scissor seat and the guide seat and moves down, the scissor blade is exposed from the bottom of the scissor seat to cut weft yarns and moves up, and the scissor blade extends into the scissor seat; the weft yarn guide hook is connected with the guide seat, is positioned on one side of the guide seat, works in cooperation with the dent of the double-sword-rod weaving machine and is used for guiding weft yarns to the position below the scissor seat.
Preferably, the first adjusting rod and the second adjusting rod are cylindrical rod pieces, a horizontal opening hole and a vertical opening hole which are used for installing the first adjusting rod and the second adjusting rod respectively are formed in the adjusting rod installing seat, and locking bolts are arranged at the horizontal opening hole and the vertical opening hole.
Preferably, the scissor seat is rectangular and is mounted with the guide seat through two first bolts, and a vertical blade sliding groove for accommodating a scissor blade is formed in the back of the scissor seat; the upper end of the shear blade is connected with a blade grabbing rod used for being connected with a shear blade driving mechanism, the blade grabbing rod is horizontally arranged, and the upper portion of the shear seat is provided with a U-shaped notch used for guiding the blade grabbing rod to move up and down.
Preferably, the shear blade comprises a handle portion, a cutter bar and a cutting edge, the width of the handle portion is matched with the width of the blade sliding groove, the cutter bar is connected with the handle portion, and the cutting edge is transversely arranged and connected with the cutter bar.
Preferably, the bottom of guide holder installs one and is the woof guide piece of L type, the long limit portion that should be the woof guide piece of L type passes through the screw installation with the guide holder together, the minor face part that is the woof guide piece of L type is located the below of guide holder, the width of long limit portion is greater than the width of minor face part, the transition of two parts width change departments adopts the circular arc transition, the width of minor face part is unanimous with the thickness of guide holder, and this minor face part goes up the bearing and installs the cushion that is used for with scissors piece complex, scissors piece moves down the in-process and rubs with the side of cushion mutually.
Preferably, the scissors seat is made of copper materials.
The invention also provides an application method of the single-side yarn shearing device for the double-rapier loom, which comprises the following steps: the unilateral yarn shearing device is arranged above one side of a cloth pressing and guiding roller of a double-rapier loom, the back surface of a guide seat is infinitely close to the end part of the cloth pressing and guiding roller under the condition of no motion interference with a reed dent, a weft yarn guide hook is close to a rapier, the rapier works to send weft yarns to warps, then the reed dent pushes the weft yarns to move towards the cloth pressing and guiding roller, the weft yarns are compressed on woven and formed cloth, the weft yarns move in the moving process, due to the guiding effect of the weft yarn guide hook and a weft yarn guide sheet, the end parts of the weft yarns are guided to the lower part of the guide seat, the weft yarns are attached to a cushion block, and a shear blade moves downwards to cut and break the weft yarns.
Compared with the prior art, the invention has the following advantages and effects: the single-side yarn shearing device is reasonable and simple in structural design and low in failure rate, is arranged on one side of the double-rapier loom, reduces weft waste edges at one end of cloth, saves raw materials, and plays a role in stretching the cloth to one side by adopting the original shearing device on the other side of the double-rapier loom; the single-side yarn shearing device adopts a mode of cutting weft yarns to replace the existing weft yarns, so that the working efficiency is high; the first adjusting rod and the second adjusting rod are designed to enable the mounting position of the single-side yarn shearing device to be convenient to finely adjust.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a front view structure schematic diagram of a single-side yarn cutting device in an embodiment of the invention.
Fig. 2 is a rear view structural schematic diagram of a single-side yarn cutting device in the embodiment of the invention.
Fig. 3 is a schematic top view of the adjustment lever mount of fig. 1.
Fig. 4 is a left side view schematically illustrating the mounting seat of the adjustment lever of fig. 1.
Fig. 5 is a schematic view showing that a weft guiding piece is arranged at the lower end of the guide seat and the weft is guided to the lower part of the scissor piece under the pushing of the dent in the embodiment of the invention.
Fig. 6 is a diagram showing a positional relationship between the weft yarn guide blade and the scissor blade in a left side view in fig. 5.
Fig. 7 is a schematic front view of the scissor base according to the embodiment of the invention.
Fig. 8 is a bottom view of the scissor base according to the embodiment of the invention.
Fig. 9 is a perspective view of a scissor blade in an embodiment of the invention.
Fig. 10 is another perspective view of a scissor blade in an embodiment of the invention.
Fig. 11 is a schematic view of a single-side yarn cutting device applied to a double-rapier loom according to an embodiment of the present invention.
Description of reference numerals: the adjustable weft yarn cutting device comprises a first adjusting rod 1, a second adjusting rod 2, an adjusting rod mounting seat 3, a scissor blade 4, a scissor seat 5, a weft yarn guide hook 6, a guide seat 7, a first bolt 8, a blade grabbing rod 9, a weft yarn guide blade 10, a screw 11, a cushion block 12, a horizontal opening hole 31, a vertical opening hole 32, a locking bolt 33, a knife handle part 41, a knife rod 42, a knife edge 43, a blade sliding groove 51 and a U-shaped notch 52.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
See fig. 1-11.
The embodiment discloses a unilateral yarn cutting device for a double-rapier loom, which comprises a first adjusting rod 1, a second adjusting rod 2, an adjusting rod mounting seat 3, a scissor blade 4, a scissor seat 5, a weft yarn guide hook 6 and a guide seat 7.
In this embodiment, regulation pole 1 and regulation pole 2 No. one are all installed on adjusting pole mount pad 3, and wherein regulation pole 1 level sets up for be connected with the crossbeam of two sword pole looms, 2 vertical settings are adjusted to No. two. Specifically, the first adjusting rod 1 and the second adjusting rod 2 are both cylindrical rod members, the adjusting rod mounting base 3 is provided with a horizontal opening hole 31 and a vertical opening hole 32 for mounting the first adjusting rod 1 and the second adjusting rod 2 respectively, and the horizontal opening hole 31 and the vertical opening hole 32 are both provided with locking bolts 33. The installation position of the unilateral yarn cutting device is convenient to finely adjust through the first adjusting rod 1 and the second adjusting rod 2.
In this embodiment, guide holder 7 is connected with the lower extreme of second regulation pole 2, and scissors seat 5 is in the same place with guide holder 7 installation to scissors blade 4 can be located scissors seat 5 and guide holder 7 under power drive up-and-down motion, and the down movement, scissors blade 4 expose out from scissors seat 5 bottom and cut the woof, upward move, scissors blade 4 stretches into in scissors seat 5.
In this embodiment, the weft guide hook 6 is connected to the guide holder 7, is located on one side of the guide holder 7, and cooperates with the dents of the double-rapier loom to guide the weft to a position below the scissor holder 5.
In the embodiment, the scissor seat 5 is rectangular and made of copper material, and is mounted with the guide seat 7 through two first bolts 8, and a vertical blade sliding groove 51 for accommodating the scissor blade 4 is formed in the back of the scissor seat 5; the upper end of the shear blade 4 is connected with a blade grabbing rod 9 used for being connected with a shear blade driving mechanism, the shear blade driving mechanism adopts the prior art, the blade grabbing rod 9 is horizontally arranged, and the upper part of the shear seat 5 is provided with a U-shaped notch 52 used for guiding the vertical lifting movement of the blade grabbing rod 9. The scissor blade 4 comprises a handle portion 41, a knife bar 42 and a cutting edge 43, the knife catch bar 9 being connected to the handle portion 41, the width of the handle portion 41 matching the width of the blade runner 51, the knife bar 42 being connected to the handle portion 41, the cutting edge 43 being arranged transversely and being connected to the knife bar 42.
In this embodiment, an L-shaped weft yarn guiding piece 10 is installed at the bottom of the guide seat 7, the long side portion of the L-shaped weft yarn guiding piece 10 is installed together with the guide seat 7 through a screw 11, the short side portion of the L-shaped weft yarn guiding piece 10 is located below the guide seat 7, the width of the long side portion is larger than that of the short side portion, the transition of the width change position of the two portions adopts circular arc transition, the width of the short side portion is consistent with the thickness of the guide seat 7, a cushion block 12 used for being matched with the scissor piece 4 is installed on the short side portion in a supporting mode, and the scissor piece 4 is rubbed with the side face of the cushion block 12 in the downward moving process.
In this embodiment, an application method of the single-side yarn shearing device for the double-rapier loom is as follows: a first adjusting rod 1 in the unilateral yarn shearing device is arranged on a beam of the double-rapier loom above one side of a cloth pressing guide roller of the double-rapier loom, so that the back of a guide seat 7 is infinitely close to the end part of the cloth pressing guide roller under the condition of no motion interference with a reed dent, a weft yarn guide hook 6 is close to the rapier, the position of the cloth pressing guide roller is a woven forming area, the position pointed by the rapier is a weft yarn passing position, the rapier works to send weft yarns to warp yarns, then the reed dent pushes the weft yarns to move towards the cloth pressing guide roller, the weft yarns are tightly pressed on woven forming cloth, and in the moving process of the weft yarns, due to the guiding effect of the weft yarn guide hook 6 and a weft yarn guide sheet 10, the end parts of the weft yarns are guided to the lower part of the guide seat 7, the weft yarns are attached to a cushion block 12, and a shear blade 4 moves downwards to cut and break the weft yarns.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a unilateral yarn device of cutting for two rapier weaving machines which characterized in that: comprises a first adjusting rod (1), a second adjusting rod (2), an adjusting rod mounting seat (3), a scissor blade (4), a scissor seat (5), a weft yarn guide hook (6) and a guide seat (7); the first adjusting rod (1) and the second adjusting rod (2) are both arranged on the adjusting rod mounting base (3), wherein the first adjusting rod (1) is horizontally arranged and used for being connected with a cross beam of a double-sword-beam loom, and the second adjusting rod (2) is vertically arranged; the guide seat (7) is connected with the lower end of the second adjusting rod (2), the scissor seat (5) is installed with the guide seat (7), the scissor blade (4) can be driven by power to move up and down and is located between the scissor seat (5) and the guide seat (7) to move down, the scissor blade (4) is exposed from the bottom of the scissor seat (5) to cut weft yarns and moves up, and the scissor blade (4) extends into the scissor seat (5); the weft yarn guide hook (6) is connected with the guide seat (7), is positioned on one side of the guide seat (7), works together with the dent of the double-sword-bar loom and is used for guiding weft yarn to the position below the scissor seat (5); the first adjusting rod (1) and the second adjusting rod (2) are both cylindrical rod pieces, a horizontal opening hole (31) and a vertical opening hole (32) which are used for installing the first adjusting rod (1) and the second adjusting rod (2) respectively are formed in the adjusting rod installing seat (3), and locking bolts (33) are arranged at the horizontal opening hole (31) and the vertical opening hole (32); the bottom of guide holder (7) is installed one and is woof guide piece (10) of L type, the long limit part that should be woof guide piece (10) of L type is in the same place through screw (11) installation with guide holder (7), the minor face part that is woof guide piece (10) of L type is located the below of guide holder (7), the width of long limit part is greater than the width of minor face part, the transition of two parts width change departments adopts the circular arc transition, the width of minor face part is unanimous with the thickness of guide holder (7), and the bearing is installed on this minor face part and is used for with scissors piece (4) complex cushion (12), scissors piece (4) move down the in-process and rub mutually with the side of cushion (12).
2. The single-sided yarn cutting device for a double rapier loom according to claim 1, characterized in that: the scissors seat (5) is rectangular and is installed with the guide seat (7) through two first bolts (8), and a vertical blade sliding groove (51) for accommodating the scissors blade (4) is formed in the back of the scissors seat (5); the upper end of the scissors blade (4) is connected with a blade grabbing rod (9) used for being connected with a scissors blade driving mechanism, the blade grabbing rod (9) is horizontally arranged, and the upper portion of the scissors seat (5) is provided with a U-shaped notch (52) used for guiding the blade grabbing rod (9) to move up and down.
3. The single-sided yarn cutting device for a double rapier loom according to claim 2, characterized in that: the shear blade (4) comprises a handle portion (41), a cutter bar (42) and a cutting edge (43), the width of the handle portion (41) is matched with the width of the blade sliding groove (51), the cutter bar (42) is connected with the handle portion (41), and the cutting edge (43) is transversely arranged and connected with the cutter bar (42).
4. The single-sided yarn cutting device for a double rapier loom according to claim 1, characterized in that: the scissors seat (5) is made of copper materials.
5. A method of using the single-edge yarn cutting device for a double rapier loom as claimed in any one of claims 1 to 4, characterized in that: the unilateral yarn shearing device is arranged above one side of a cloth pressing and guiding roller of a double-rapier loom, the back surface of a guide seat (7) is infinitely close to the end part of the cloth pressing and guiding roller under the condition of no motion interference with reed dent, a weft yarn guide hook (6) is close to a rapier, weft yarn is sent to warp yarn by the rapier work, then the reed dent pushes the weft yarn to move towards the cloth pressing and guiding roller, the weft yarn is pressed on woven and formed cloth, the weft yarn moves, the end part of the weft yarn is guided to the lower part of the guide seat (7) due to the guiding action of the weft yarn guide hook (6) and a weft yarn guide sheet (10), the weft yarn is attached to a cushion block (12), and a shear sheet (4) moves downwards to cut the weft yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158707.0A CN111118708B (en) | 2020-03-09 | 2020-03-09 | Unilateral yarn shearing device for double-rapier loom and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010158707.0A CN111118708B (en) | 2020-03-09 | 2020-03-09 | Unilateral yarn shearing device for double-rapier loom and application method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN111118708A CN111118708A (en) | 2020-05-08 |
| CN111118708B true CN111118708B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010158707.0A Active CN111118708B (en) | 2020-03-09 | 2020-03-09 | Unilateral yarn shearing device for double-rapier loom and application method thereof |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3812960A1 (en) * | 1987-10-06 | 1989-04-20 | Textilma Ag | GRIPPER WEAVING MACHINE |
| CN201406521Y (en) * | 2009-05-07 | 2010-02-17 | 施小平 | Weaving machine weft shearing device without waste selvage yarn |
| CN202107858U (en) * | 2011-05-27 | 2012-01-11 | 安徽东至华源纺织有限责任公司 | Filling yarn knife for weaving machine |
| CN204162864U (en) * | 2014-11-05 | 2015-02-18 | 上海中剑纺织机械有限公司 | A kind of novel air injection tuck-in selvage scissors foot device |
| CN109385734A (en) * | 2017-08-10 | 2019-02-26 | 山东新力环保材料有限公司 | A kind of rapier loom filling cutter |
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2020
- 2020-03-09 CN CN202010158707.0A patent/CN111118708B/en active Active
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