Novel scissors system for water-jet loom

Abstract

The utility model relates to the technical field of textile machinery, and discloses a novel scissors system for a water jet loom, which comprises a fixed cylinder for supporting, a transmission shaft for driving is rotatably connected in the fixed cylinder, two ends of the transmission shaft extend to the outside of the fixed cylinder, and a swing piece is fixedly connected to one side of the outside of the transmission shaft. The upper shear blade is driven to move vertically to form vertical shear force with the lower shear blade, so that the problems of material extrusion deformation and cutting edge lateral abrasion caused by traditional oblique shearing are effectively solved, the shearing efficiency of high-strength materials such as chinlon and single-strand thick filaments and coarse and hard fabrics such as screen windows is remarkably improved, and the shearing efficiency is improved. And meanwhile, the phenomena of tipping and curling are reduced, fiber chippings and dust generated by cutting can be synchronously adsorbed, impurities are prevented from being accumulated to form a grinding medium, the cracking risk caused by abnormal abrasion of a cutting edge and embedding of hard chippings is avoided, and the service life of a scissor system is further prolonged.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically to a novel scissor system for a water jet loom. Background Technology

[0002] As an important piece of equipment in the modern textile industry, the water jet loom uses high-pressure water to guide the weft yarn through the warp yarn to form a fabric. Its shear system is mainly used to cut the end of the yarn after weft insertion. It is a key component to ensure weaving efficiency and fabric quality. During the continuous operation of the water jet loom, the shear system performs the cutting action, and its performance directly affects the running stability of the loom and the neatness of the fabric edge.

[0003] Traditional water-jet loom shear systems generally employ an oblique shearing method. This oblique shearing generates lateral forces on high-strength materials such as nylon and single-ply coarse filaments, leading to material compression deformation and uneven blade wear. Furthermore, hard fibers are prone to blade chipping or curling during oblique shearing, severely affecting the shearing quality of coarse and stiff fabrics such as window screens. Additionally, fiber dust generated during shearing in existing water-jet loom shear systems accumulates at the blade edge, forming an abrasive layer, which exacerbates blade wear and may cause blade jamming. Therefore, those skilled in the art provide a novel shearing system for water-jet looms to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this utility model is to provide a novel scissor system for water jet looms, which solves the problems mentioned in the background art above.

[0005] This utility model provides the following technical solution: a novel scissor system for a water jet loom, comprising a fixed cylinder for support, a drive shaft for driving is rotatably connected inside the fixed cylinder, and both ends of the drive shaft extend to the outside of the fixed cylinder, a swing plate is fixedly connected to one side of the drive shaft, a drive rod for driving the system is rotatably connected to one side of the swing plate, a scissor assembly for cutting short the textile thread is installed on one side of the fixed cylinder, a cleaning component for removing dust is installed on the side of the scissor assembly away from the fixed cylinder, and a locking component for restricting the movement of the scissor assembly is fixedly installed on one side of the outer wall of the fixed cylinder.

[0006] As a preferred embodiment of the above technical solution, the scissor assembly includes a first fixed seat, which is fixedly connected to one side of the outer wall of the fixed cylinder. A lower scissor blade is fixedly connected to the upper part of the side of the first fixed seat away from the fixed cylinder. A second fixed seat is fixedly connected to one side of the outer wall of the transmission shaft. A connecting rod is rotatably connected to the edge of the second fixed seat away from the swing blade.

[0007] As a preferred embodiment of the above technical solution, a fixing rod is fixedly connected to the lower edge of the outer wall of the fixing cylinder, and a lifting port is opened on the upper side of the fixing rod away from the fixing cylinder. A lifting block is slidably connected to the inner wall of the lifting port, and an installation rod is fixedly connected to the side of the lifting block near the fixing cylinder. The end of the connecting rod away from the second fixing seat is rotatably sleeved on the outside of the installation rod, and an upper scissor blade is fixedly connected to the end of the installation rod away from the lifting block.

[0008] As a preferred embodiment of the above technical solution, the cleaning component includes a mounting plate, which is fixedly connected to the lower part of the fixed rod on the side away from the fixed cylinder. The mounting plate includes a vertical rod part and a horizontal rod part. Multiple collection covers are installed on the side of the horizontal rod part of the mounting plate near the fixed rod. A conveying pipe is provided on the side of the mounting plate away from the fixed rod. Multiple input ends of the conveying pipe are respectively connected to the output ends of multiple collection covers.

[0009] As a preferred embodiment of the above technical solution, the locking assembly includes a connecting frame and a swing rod. The connecting frame is fixedly connected to the upper part of one side of the outer wall of the fixed cylinder, and the swing rod is fixedly connected to the lower part of one side of the outer wall of the transmission shaft. A vertical plate is fixedly connected to one side of the connecting frame, and an electric push rod is fixedly installed on the lower part of the side of the vertical plate away from the swing rod. A limit plate is fixedly connected to the output end of the electric push rod, and a wedge-shaped locking block is fixedly connected to the bottom of the inner wall of the limit plate.

[0010] As a preferred embodiment of the above technical solution, the inlet end of the conveying pipe is fixedly connected to a flange, the upper and lower scissor blades are arranged opposite each other, the multiple collection covers are all arranged at an angle, and the multiple collection covers are all directly opposite the upper end of the lower scissor blades.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When the transmission rod swings, it drives the transmission shaft to rotate reciprocally, which in turn causes the second fixed seat to rotate reciprocally. At this time, the connecting rod rotates on the second fixed seat and the mounting rod, which in turn pulls the lifting block to move up and down within the lifting port. This causes the upper scissor blade to descend vertically. Through the vertical cutting of the upper and lower scissor blades, a shearing force perpendicular to the fiber direction can be generated for harder nylon and high-strength materials with single-strand coarse filaments. This avoids the material compression deformation and lateral wear of the blade caused by traditional oblique shearing, thus significantly improving the cutting efficiency and durability of coarse and hard fabrics such as window screens. It also reduces the chipping or rolling of the upper and lower scissor blades due to material hardness, extending the overall service life of the device.

[0013] 2. By generating negative pressure at the input end of the collection hood, fiber debris and dust generated during the shearing process can be adsorbed, preventing these impurities from accumulating on the cutting edges of the upper and lower shear blades to form abrasive media. This avoids abnormal wear of the cutting edges caused by friction from impurities, reduces the risk of cutting edge breakage caused by hard fiber debris embedding in the gap between the upper and lower shear blades, and further improves the overall service life of the device. Attached Figure Description

[0014] Figure 1 A schematic diagram of the main structure of a novel scissor system for a water jet loom;

[0015] Figure 2 An exploded view of the structure of a novel scissor system for a water-jet loom;

[0016] Figure 3 A schematic diagram of the scissor assembly structure of a novel scissor system for a water jet loom;

[0017] Figure 4 A schematic diagram of the cleaning component structure of a novel scissor system for a water jet loom;

[0018] Figure 5 This is a schematic diagram of the locking component structure of a novel scissor system for a water jet loom.

[0019] Legend:

[0020] 1. Fixed cylinder; 2. Drive shaft; 3. Swinging plate; 4. Drive rod; 5. Scissor assembly; 501. First fixed seat; 502. Lower scissor blade; 503. Second fixed seat; 504. Connecting rod; 505. Fixed rod; 506. Lifting port; 507. Lifting block; 508. Mounting rod; 509. Upper scissor blade; 6. Cleaning assembly; 601. Mounting plate; 602. Collection cover; 603. Conveying pipe; 7. Locking assembly; 701. Connecting frame; 702. Swinging rod; 703. Vertical plate; 704. Electric push rod; 705. Limiting plate; 706. Wedge-shaped locking block; 8. Flange. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figures 1-5As shown, this utility model provides a technical solution: a novel scissor system for a water jet loom, including a fixed cylinder 1 for support, a drive shaft 2 for driving rotatably connected inside the fixed cylinder 1, and both ends of the drive shaft 2 extending to the outside of the fixed cylinder 1, a swing plate 3 fixedly connected to one side of the outside of the drive shaft 2, a drive rod 4 for driving the system to work rotatably connected to one side of the swing plate 3, a scissor assembly 5 for cutting short the textile thread installed on one side of the fixed cylinder 1, a cleaning assembly 6 for removing dust installed on the side of the scissor assembly 5 away from the fixed cylinder 1, and a locking assembly 7 for restricting the movement of the scissor assembly 5 fixedly installed on one side of the outer wall of the fixed cylinder 1.

[0023] As one implementation method in this embodiment, please refer to Figures 1-3 As shown, the scissor assembly 5 includes a first fixed seat 501, which is fixedly connected to one side of the outer wall of the fixed cylinder 1. A lower scissor blade 502 is fixedly connected to the upper part of the side of the first fixed seat 501 away from the fixed cylinder 1. A second fixed seat 503 is fixedly connected to one side of the outer wall of the transmission shaft 2. A connecting rod 504 is rotatably connected to the edge of the second fixed seat 503 away from the swing plate 3. A fixed rod 505 is fixedly connected to the lower part of the outer wall edge of the fixed cylinder 1. A lifting port 506 is opened on the upper part of the side of the fixed rod 505 away from the fixed cylinder 1. A lifting block 507 is slidably connected to the inner wall of the lifting port 506. An installation rod 508 is fixedly connected to the side of the lifting block 507 close to the fixed cylinder 1. One end of the connecting rod 504 away from the second fixed seat 503 is rotatably sleeved on the outside of the installation rod 508. An upper scissor blade 509 is fixedly connected to the end of the installation rod 508 away from the lifting block 507.

[0024] Furthermore, the motion logic of the water jet loom scissor system is as follows: by driving the transmission rod 4 to swing, the transmission shaft 2 can be rotated back and forth at a small angle, thus driving the scissor assembly 5 to operate. This is a commonly used motion logic in the prior art. Therefore, the swinging of the transmission rod 4 can drive the transmission shaft 2 to rotate back and forth within the fixed cylinder 1, causing the second fixed seat 503 to rotate back and forth. At this time, the connecting rod 504 rotates on the second fixed seat 503 and the mounting rod 508, converting the rotation of the second fixed seat 503 into the linear motion of the lifting block 507, which can pull the lifting block 507 at the lifting port. The upper scissor blade 509 can be vertically lowered by raising and lowering the blade within 506. Through the vertical cutting of the upper scissor blade 509 and the lower scissor blade 502, a shearing force perpendicular to the fiber direction can be generated on harder nylon and high-strength materials with single-strand coarse filaments. This avoids the material compression deformation and lateral wear of the blade caused by traditional oblique shearing, thereby significantly improving the shearing efficiency and durability of coarse and hard fabrics such as window screens. It also reduces the chipping or rolling of the upper scissor blade 509 and the lower scissor blade 502 due to the hardness of the material, and extends the overall service life of the device.

[0025] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 4 As shown, the cleaning component 6 includes a mounting plate 601, which is fixedly connected to the lower part of the fixed rod 505 away from the fixed cylinder 1. The mounting plate 601 includes a vertical rod part and a horizontal rod part. Multiple collection covers 602 are installed on the side of the horizontal rod part of the mounting plate 601 near the fixed rod 505. A conveying pipe 603 is provided on the side of the mounting plate 601 away from the fixed rod 505. Multiple input ends of the conveying pipe 603 are respectively connected to the output ends of multiple collection covers 602.

[0026] Furthermore, when the scissor assembly 5 is in operation, by setting the collection cover 602 directly opposite the blade edge of the lower scissor blade 502, the user can install a negative pressure dust removal device at the output end of the conveying pipe 603. The negative pressure dust removal device generates negative pressure in the closed cavity through a fan, thereby adsorbing and storing dust. The negative pressure dust removal device can generate negative pressure at the input end of the collection cover 602, which can adsorb fiber debris and dust generated during the shearing process, preventing these impurities from accumulating on the blade edges of the upper scissor blade 509 and the lower scissor blade 502 to form abrasive media. This avoids abnormal wear of the blade edges due to friction from impurities, reduces the risk of blade edge breakage caused by hard fiber debris embedding in the gap between the upper scissor blade 509 and the lower scissor blade 502, and further improves the overall service life of the device.

[0027] As one implementation method in this embodiment, please refer to Figure 1 , Figure 2 and Figure 5 As shown, the locking assembly 7 includes a connecting frame 701 and a swing rod 702. The connecting frame 701 is fixedly connected to the upper part of one side of the outer wall of the fixed cylinder 1, and the swing rod 702 is fixedly connected to the lower part of one side of the outer wall of the transmission shaft 2. A vertical plate 703 is fixedly connected to one side of the connecting frame 701. An electric push rod 704 is fixedly installed on the lower part of the side of the vertical plate 703 away from the swing rod 702. A limit plate 705 is fixedly connected to the output end of the electric push rod 704. A wedge-shaped locking block 706 is fixedly connected to the bottom of the inner wall of the limit plate 705.

[0028] Furthermore, when the electric push rod 704 is not working, the output end of the electric push rod 704 pushes the limiting plate 705 to a greater distance. The limiting plate 705 and the wedge-shaped locking block 706 will not block the swing rod 702 from swinging back and forth. At this time, the upper scissor blade 509 and the lower scissor blade 502 can work normally to cut the yarn. When the last defective weft yarn is found, the electric push rod 704 works, and the output end of the electric push rod 704 drives the limiting plate 705 to move backward, so that the top of the inner wall of the limiting plate 705 and the wedge-shaped locking block 706 lock the swing rod 702. When the action is completed, the upper scissor blade 509 is limited to the highest point to prevent the yarn from being cut. After cleaning up the waste weft yarn, the machine can be started directly, reducing troubleshooting time and increasing the efficiency of the loom.

[0029] As one implementation method in this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 As shown, a flange 8 is fixedly connected to the input end of the conveying pipe 603, the upper scissor blade 509 and the lower scissor blade 502 are arranged opposite each other, and multiple collection covers 602 are all inclined and are directly opposite the upper end of the lower scissor blade 502.

[0030] Furthermore, flange 8 is used to connect the pipe on the negative pressure dust removal device to the output end of conveying pipe 603 to ensure the sealing of the connection between conveying pipe 603 and the pipe. The upper scissor blade 509 and the lower scissor blade 502 are arranged opposite to each other. When the drive shaft 2 rotates, it drives the upper scissor blade 509 to move closer to the lower scissor blade 502 so as to cut the yarn normally. The collection cover 602 is inclined so that the collection cover 602 can better absorb the debris generated by the cutting edges of the upper scissor blade 509 and the lower scissor blade 502 during cutting, and avoid abnormal wear of the cutting edges caused by friction of impurities.

[0031] Working principle: When the transmission rod 4 swings, it drives the transmission shaft 2 to reciprocate within the fixed cylinder 1, causing the second fixed seat 503 to reciprocate. At this time, the connecting rod 504 rotates on the second fixed seat 503 and the mounting rod 508, converting the rotation of the second fixed seat 503 into linear motion of the lifting block 507. This pulls the lifting block 507 up and down within the lifting port 506, causing the upper scissor blade 509 to descend vertically. Through the vertical cutting of the upper scissor blade 509 and the lower scissor blade 502, a shearing force perpendicular to the fiber direction can be generated for harder nylon and high-strength single-strand coarse filament materials. This avoids the material compression deformation and lateral wear of the blade edge caused by traditional oblique shearing, thus significantly improving the cutting performance for coarse and hard materials such as window screens. The improved fabric cutting efficiency and blade durability reduce the risk of chipping or rolling of the upper and lower blades 509 and 502 due to material hardness, thus extending the overall service life of the device. When the scissor assembly 5 is working, by setting the collection cover 602 directly opposite the blade edge of the lower blade 502 and generating negative pressure at the input end of the collection cover 602, fiber debris and dust generated during the cutting process can be adsorbed, preventing these impurities from accumulating on the blade edges of the upper and lower blades 509 and forming abrasive media. This avoids abnormal wear of the blade edges due to friction from impurities and reduces the risk of blade edge chipping caused by hard fiber debris embedding in the gap between the upper and lower blades 509 and 502, thereby further improving the overall service life of the device.

[0032] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A new shear system for water jet loom comprising a fixed cylinder (1) for support, characterized in that: The fixed cylinder (1) is rotatably connected to a drive shaft (2) for driving, and both ends of the drive shaft (2) extend to the outside of the fixed cylinder (1). A swing plate (3) is fixedly connected to one side of the outside of the drive shaft (2). A drive rod (4) for driving the system is rotatably connected to one side of the swing plate (3). A scissor assembly (5) for cutting the textile thread is installed on one side of the fixed cylinder (1). A cleaning assembly (6) for removing dust is installed on the side of the scissor assembly (5) away from the fixed cylinder (1). A locking assembly (7) for restricting the movement of the scissor assembly (5) is fixedly installed on one side of the outer wall of the fixed cylinder (1).

2. A novel shear system for a water jet loom as claimed in claim 1, wherein: The scissor assembly (5) includes a first fixed seat (501), which is fixedly connected to one side of the outer wall of the fixed cylinder (1). A lower scissor blade (502) is fixedly connected to the upper side of the first fixed seat (501) away from the fixed cylinder (1). A second fixed seat (503) is fixedly connected to one side of the outer wall of the transmission shaft (2). A connecting rod (504) is rotatably connected to the edge of the second fixed seat (503) away from the swing plate (3).

3. A novel shear system for a water jet loom as claimed in claim 2, wherein: A fixing rod (505) is fixedly connected to the lower edge of the outer wall of the fixing cylinder (1). A lifting port (506) is opened on the upper side of the fixing rod (505) away from the fixing cylinder (1). A lifting block (507) is slidably connected to the inner wall of the lifting port (506). An installation rod (508) is fixedly connected to the side of the lifting block (507) close to the fixing cylinder (1). The end of the connecting rod (504) away from the second fixing seat (503) is rotatably sleeved on the outside of the installation rod (508). An upper scissor blade (509) is fixedly connected to the end of the installation rod (508) away from the lifting block (507).

4. A novel shear system for a water jet loom as claimed in claim 3, wherein: The cleaning component (6) includes a mounting plate (601), which is fixedly connected to the lower side of the fixing rod (505) away from the fixing cylinder (1). The mounting plate (601) includes a vertical rod part and a horizontal rod part. Multiple collection covers (602) are installed on the side of the horizontal rod part of the mounting plate (601) near the fixing rod (505). A conveying pipe (603) is provided on the side of the mounting plate (601) away from the fixing rod (505). Multiple input ends of the conveying pipe (603) are respectively connected to the output ends of multiple collection covers (602).

5. A novel shear system for a water jet loom as claimed in claim 1, wherein: The locking assembly (7) includes a connecting frame (701) and a swing rod (702). The connecting frame (701) is fixedly connected to the upper side of the outer wall of the fixed cylinder (1). The swing rod (702) is fixedly connected to the lower side of the outer wall of the transmission shaft (2). A vertical plate (703) is fixedly connected to one side of the connecting frame (701). An electric push rod (704) is fixedly installed on the lower side of the vertical plate (703) away from the swing rod (702). A limit plate (705) is fixedly connected to the output end of the electric push rod (704). A wedge-shaped locking block (706) is fixedly connected to the bottom of the inner wall of the limit plate (705).

6. A novel shear system for water jet loom as claimed in claim 4 wherein: The conveying pipe (603) input end fixedly connected with flange (8), the upper scissor blade (509) and lower scissor blade (502) are opposite and set up, multiple collection cover (602) are all inclined and set up, and multiple collection cover (602) are all opposite the upper end of lower scissor blade (502).

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