Energy-saving air jet loom for textile production

Abstract

The invention relates to the technical field of air-jet looms, in particular to an energy-saving air-jet loom for textile production, which comprises a support component, an alignment component is fixedly mounted at the front end of the support component, guide rollers are symmetrically and rotatably mounted at the front end of the top of the support component, and the alignment component comprises a guide device and a displacement device. The guiding device is fixedly installed at the top end of the displacement device and comprises an air nozzle, a nylon brush, a rack, a first gear, a transmission toothed belt, a second gear, a first plastic wheel, supporting base frames and a supporting shaft, the supporting base frames are fixedly installed at the two ends of the air nozzle, and the rack is fixedly installed behind the side end, close to the air nozzle, of the supporting base frames. The first gear and the second gear are rotationally mounted at the top and the bottom of the side end, deviating from the air tap, of the supporting base frame, and the transmission toothed belt sleeves outer rings of the first gear and the second gear in an engaged manner. Through the arrangement of the alignment component and the supporting component, the purpose that the air-jet loom conducts cloth double-face residual thread residue removal and cloth cutting integration is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-jet looms, and specifically to an energy-saving air-jet loom for textile production. Background Art

[0002] An air-jet loom is a shuttleless loom that uses a jet of air to draw the weft yarn through the shed. The working principle of an air-jet loom is to use air as the weft insertion medium, and a compressed air jet is ejected to generate a frictional traction force on the weft yarn for traction, bringing the weft yarn across the shed, and achieving the purpose of weft insertion through the jet flow generated by the jet of air.

[0003] An air-jet loom mainly consists of a frame, a drive and braking system, a shedding mechanism, a weft insertion mechanism, a beating-up mechanism, a warp let-off mechanism, a winding mechanism, a hemming mechanism, a scissor mechanism, a selvage device, a centralized oil supply and an automatic control system, etc. Among them, the frame has two forms: a box-type wallboard frame and a plate-type wallboard frame; the drive and braking system usually adopts direct drive and braking of a reluctance motor and can be steplessly speed-regulated; the shedding mechanism has various forms such as crank shedding, cam shedding, dobby shedding and jacquard shedding according to the matching of the fabric structure.

[0004] For example, an air-jet loom with the Chinese patent publication number CN108611742A includes a bearing seat, a gearbox, a first driving motor, a first roller, a second roller, a first cylinder, a second cylinder, a support rod and a pressing device; the bearing seat and the gearbox are respectively fixed on the ground; both ends of the first roller and the second roller are rotatably connected to the bearing seat and the gearbox respectively; the first driving motor meshes with the gearbox, and the first driving motor is installed on one side of the gearbox; the first cylinder and the second cylinder are respectively fixed on the bearing seat and the gearbox; the upper ends of the first cylinder and the second cylinder are respectively fixed to the support rod; the pressing device is used to press the fabric on the second roller.

[0005] Currently, when the air-jet looms on the market are in use, since the high-speed rotating components inside the loom will cut off the residual silk threads during fabric production, the silk threads will adhere to the fabric surface. Because the air-jet loom only has the production function, additional components need to be added when cleaning the fabric surface, resulting in increased energy consumption. Therefore, when the existing air-jet looms are in use, they cannot perform the functions of removing the remaining thread ends on both sides of the fabric and cutting the fabric integrally. Therefore, a device is needed to improve the above problems. Summary of the Invention

[0006] In view of the problems in the prior art, the present invention provides an energy-saving air-jet loom for textile production.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an energy-saving jet loom for textile production, comprising a supporting component, a positioning component is fixedly installed at the front end of the supporting component, a guide roller is symmetrically rotatably installed at the top front end of the supporting component, the positioning component comprises a guiding device and a displacement device, the guiding device is fixedly installed at the top of the displacement device, the guiding device comprises an air nozzle, a nylon brush, a rack, a first gear, a transmission belt, a second gear, a first plastic wheel, a supporting frame and a supporting shaft, the supporting frame is fixedly installed at both ends of the air nozzle, the rack is fixedly installed at the rear of the side end of the supporting frame close to the air nozzle, the first gear and the second gear are rotatably installed at the top and bottom of the side end of the supporting frame away from the air nozzle, the transmission belt is meshed and sleeved on the outer rings of the first gear and the second gear, the first plastic wheel is fixedly installed at the center of the side end of the second gear close to the supporting frame, the supporting shaft is fixedly installed between the two first gears, and the nylon brush is fixedly installed on the outer ring of the supporting shaft.

[0008] Specifically, the displacement device includes a supporting base frame, a displacement frame, a round rod, a supporting vertical rod, a reset spring and an H-shaped sliding key. The reset spring is fixedly installed at the inner rear end of the supporting base frame, the H-shaped sliding key is fixedly installed at the front end of the reset spring, the displacement frame is fixedly installed between the two H-shaped sliding keys, the round rod is rotatably installed at the rear end of the displacement frame, and the supporting vertical rod is fixedly installed at the top two ends of the displacement frame.

[0009] Specifically, the supporting component includes a synchronization device and a positioning device, and the synchronization device is fixedly installed on the top of the positioning device.

[0010] Specifically, the synchronization device includes a cutting knife, a supporting cross bar, an L-shaped air cylinder, a connecting cross frame, a vertical bracket, a first piston rod and a second piston rod. The connecting cross frame is slidably sleeved on the outer ring of the vertical bracket, the first piston rod is fixedly installed at the front end of the connecting cross frame, the supporting cross bar is fixedly installed between the two connecting cross frames, the cutting knife is symmetrically fixedly installed on the outer ring of the supporting cross bar, and the second piston rod is slidably inserted into the front end of the L-shaped air cylinder.

[0011] Specifically, the positioning device includes an air jet loom, a winding shaft, a second gear, a second plastic rubber wheel, a movable groove and a guide groove. The movable groove is symmetrically arranged inside the two ends of the air jet loom, and the guide groove is symmetrically arranged on both sides of the movable groove. The second gear is rotatably installed inside the movable groove, the winding shaft is rotatably installed at the front end bottom of the air jet loom, and the second plastic rubber wheel is fixedly installed on the two ends of the winding shaft.

[0012] Specifically, the air nozzle is fixedly installed on the top of the displacement frame, the top of the rear end of the supporting vertical rod is connected to the front end of the second piston rod, the L-shaped air cylinder is fixedly installed on both ends of the top of the jet loom, the vertical bracket is symmetrically fixedly installed on the top rear end of the jet loom, and the rear end of the supporting base frame is installed at the front end of the jet loom.

[0013] Specifically, the rack is meshed with the second gear, the support base is slidably inserted into the guide groove, the first plastic wheel is aligned with the second plastic wheel, and a slot compatible with the H-shaped sliding key is provided inside the side end of the support base close to the displacement frame. The interior of the L-shaped gas cylinder is set in a hollow state, and a closed cavity is formed between the L-shaped gas cylinder, the first piston rod and the second piston rod.

[0014] Specifically, the transmission ratio of the second plastic rubber wheel to the first plastic rubber wheel is 1:20, the nylon brush is located above the air nozzle, an extension rod is fixedly installed between the support base and the air nozzle, and the rack is fixedly installed behind the extension rod.

[0015] Specifically, a vertical rod is installed at the bottom end of the L-shaped air cylinder, and the vertical rod is installed at the top front end of the air jet loom. The air nozzle, nylon brush, rack, first gear, transmission belt, second gear, first plastic wheel, support base and support shaft are each arranged inside the air jet loom.

[0016] Specifically, the cutting knife further comprises a positioning bolt and an extension back plate, wherein the extension back plate is fixedly mounted on the side end of the cutting knife, and the positioning bolt is threadedly inserted into the top center of the extension back plate.

[0017] Beneficial effects of the present invention:

[0018] First, the present invention drives the round rod to move toward the rear end through the setting of the displacement frame through the reset spring, so that the round rod can tension the transmitted cloth. At the same time, the air nozzle can get close to the cloth when it is displaced, so that the air nozzle can absorb the thread ends on the cloth. Moreover, when the air nozzle is displaced, the first plastic rubber wheel and the second plastic rubber wheel can be driven to fit together, so that when the second plastic rubber wheel is running, it can drive the nylon brush to rotate at the same time, thereby sweeping away the thread ends attached to the cloth, thereby completing the work of cleaning the thread ends on the cloth surface.

[0019] Secondly, when the air nozzle is displaced, the present invention can also drive the supporting vertical rod to displace, so that the second piston rod can be inserted into the interior of the L-shaped air cylinder, causing the first piston rod to drive the supporting horizontal rod to move downward, so that the cutting knife can move downward at the same time, so that the cutting knife can enter the working state, thereby cutting the cloth, and when the air nozzle is reset, the cutting knife can be displaced upward, so that the cutting knife can be separated from the cloth and the integrated cloth cutting work is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a front - view three - dimensional structural schematic diagram of the main body in the present invention;

[0022] Figure 2 It is a front - view three - dimensional structural schematic diagram of the alignment component in the present invention;

[0023] Figure 3 It is a front - view three - dimensional structural schematic diagram of the guiding device in the present invention;

[0024] Figure 4 It is a partial sectional view of the displacement device in the present invention;

[0025] Figure 5 It is a front - view three - dimensional structural schematic diagram of the support component in the present invention;

[0026] Figure 6 It is a front - view three - dimensional structural schematic diagram of the synchronization device in the present invention;

[0027] Figure 7 It is a partial sectional view of the positioning device in the present invention;

[0028] Figure 8 It is a front - view three - dimensional structural schematic diagram of the second embodiment of the cutting knife in the present invention.

[0029] In the figure: 1 - alignment component, 2 - support component, 3 - guide roller, 4 - guiding device, 5 - displacement device, 6 - air nozzle, 7 - nylon brush, 8 - rack, 9 - first gear, 10 - transmission toothed belt, 11 - second gear, 12 - first plastic wheel, 13 - support base frame, 14 - support shaft, 15 - support bottom frame, 16 - displacement frame, 17 - round rod, 18 - support vertical rod, 19 - return spring, 20 - H - shaped sliding key, 21 - synchronization device, 22 - positioning device, 23 - cutting knife, 24 - support cross bar, 25 - L - shaped air cylinder, 26 - connecting cross frame, 27 - vertical support, 28 - first piston rod, 29 - second piston rod, 30 - air - jet loom, 31 - take - up reel, 32 - second gear, 33 - second plastic wheel, 34 - movable groove, 35 - guiding groove, 36 - positioning bolt, 37 - extended back plate. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0031] The present invention is further described below in conjunction with the accompanying drawings.

[0032] Example 1

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, an energy-saving air jet loom for textile production of the present invention comprises a support component 2, a positioning component 1 is fixedly installed at the front end of the support component 2, a guide roller 3 is symmetrically rotated and installed at the top front end of the support component 2, the positioning component 1 comprises a guide device 4 and a displacement device 5, the guide device 4 is fixedly installed at the top of the displacement device 5, the guide device 4 comprises an air nozzle 6, a nylon brush 7, a rack 8, a first gear 9, a transmission toothed belt 10, a second gear 11, a first plastic wheel 12, a support base frame 13 and a support shaft 14, the support base frame 13 is fixedly installed at both ends of the air nozzle 6, the rack 8 is fixedly installed at the rear of the side end of the support base 13 close to the air nozzle 6, the first gear 9 and the second gear 11 are rotatably installed on the top and bottom of the side end of the support base 13 away from the air nozzle 6, the transmission belt 10 is meshed and sleeved on the outer rings of the first gear 9 and the second gear 11, the first plastic wheel 12 is fixedly installed on the side end center of the second gear 11 close to the support base 13, the support shaft 14 is fixedly installed between the two first gears 9, and the nylon brush 7 is fixedly installed on the outer ring of the support shaft 14.

[0034] like Figure 4 The displacement device 5 includes a supporting base frame 15, a displacement frame 16, a round rod 17, a supporting vertical rod 18, a reset spring 19 and an H-shaped sliding key 20. The reset spring 19 is fixedly installed at the inner rear end of the supporting base frame 15, the H-shaped sliding key 20 is fixedly installed at the front end of the reset spring 19, the displacement frame 16 is fixedly installed between two H-shaped sliding keys 20, the round rod 17 is rotatably installed at the rear end of the displacement frame 16, and the supporting vertical rod 18 is fixedly installed at the top two ends of the displacement frame 16. By setting the reset spring 19, the displacement frame 16 can be driven to reset.

[0035] like Figure 5 The supporting component 2 includes a synchronizing device 21 and a positioning device 22. The synchronizing device 21 is fixedly mounted on the top of the positioning device 22 to support the synchronizing device 21 to work.

[0036] like Figure 6, the synchronization device 21 includes a cutting knife 23, a supporting cross bar 24, an L-shaped air cylinder 25, a connecting cross frame 26, a vertical support 27, a first piston rod 28 and a second piston rod 29. The connecting cross frame 26 is slidably sleeved on the outer circle of the vertical support 27. The first piston rod 28 is fixedly installed at the front end of the connecting cross frame 26. The supporting cross bar 24 is fixedly installed between the two connecting cross frames 26. The cutting knife 23 is symmetrically and fixedly installed on the outer circle of the supporting cross bar 24. The second piston rod 29 is slidably inserted into the front end inside of the L-shaped air cylinder 25. By sliding the connecting cross frame 26 on the vertical support 27, it can ensure that the supporting cross bar 24 moves up and down in a straight line.

[0037] As Figure 7 , the positioning device 22 includes an air-jet loom 30, a winding shaft 31, a second gear 32, a second plastic wheel 33, a movable groove 34 and a guiding groove 35. The movable grooves 34 are symmetrically opened inside both ends of the air-jet loom 30. The guiding grooves 35 are symmetrically opened on both inner sides of the movable groove 34. The second gear 32 is rotatably installed inside the movable groove 34. The winding shaft 31 is rotatably installed at the front bottom of the air-jet loom 30. The second plastic wheels 33 are fixedly installed at both ends of the winding shaft 31. By connecting the shaft of the driving motor inside the air-jet loom 30 and the winding shaft 31 with bolts, it is convenient to disassemble the winding shaft 31.

[0038] The air nozzle 6 is fixedly installed at the top end of the displacement frame 16. The top of the rear end of the supporting vertical rod 18 is connected to the front end of the second piston rod 29. The L-shaped air cylinder 25 is fixedly installed at both top ends of the air-jet loom 30. The vertical supports 27 are symmetrically and fixedly installed at the rear top of the air-jet loom 30. The rear end of the supporting bottom frame 15 is installed at the front end of the air-jet loom 30. The rack 8 meshes with the second gear 32. The supporting base frame 13 is slidably inserted into the guiding groove 35. The first plastic wheel 12 is aligned with the second plastic wheel 33. A slot adapted to the H-shaped sliding key 20 is opened inside the side end of the supporting bottom frame 15 close to the displacement frame 16. The inside of the L-shaped air cylinder 25 is provided in a hollow state, and a sealed cavity is formed among the L-shaped air cylinder 25, the first piston rod 28 and the second piston rod 29. The transmission ratio between the second plastic wheel 33 and the first plastic wheel 12 is 1:20. The nylon brush 7 is located above the air nozzle 6. An extension rod is fixedly installed between the supporting base frame 13 and the air nozzle 6, and the rack 8 is fixedly installed behind the extension rod. A vertical rod is installed at the bottom end of the L-shaped air cylinder 25, and the vertical rod is installed at the front top of the air-jet loom 30. One air nozzle 6, one nylon brush 7, one rack 8, one first gear 9, one transmission belt 10, one second gear 11, one first plastic wheel 12, one supporting base frame 13 and one supporting shaft 14 are respectively arranged inside the air-jet loom 30.

[0039] The working principle of Embodiment 1 is as follows: When in use, the displacement frame 16 can be first pulled towards the front end, and then the fabric woven inside the air-jet loom 30 is wound around the take-up reel 31 through the guide roller 3. Since a driving motor is installed inside the air-jet loom 30 and the take-up reel 31 is connected to the driving motor, when the driving motor starts, it can drive the take-up reel 31 and the second plastic wheel 33 to rotate simultaneously. At the same time, the displacement frame 16 can be released. The elasticity of the return spring 19 will drive the H-shaped sliding key 20 to move towards the rear end. At the same time, when the H-shaped sliding key 20 slides in the card slot inside the side end of the support chassis 15, it can ensure that the H-shaped sliding key 20 moves in a straight line. When the H-shaped sliding key 20 moves towards the rear end, it can drive the displacement frame 16 to move towards the rear end simultaneously. When the displacement frame 16 moves towards the rear end, it can drive the round rod 17 to move towards the rear end to squeeze and tension the fabric between the guide roller 3 and the take-up reel 31. At the same time, when the displacement frame 16 moves towards the rear end, it can also drive the support vertical rod 18 and the second piston rod 29 to move towards the rear end simultaneously, so that the second piston rod 29 can enter the inside of the L-shaped air cylinder 25. Thus, the first piston rod 28 can drive the connecting cross frame 26 to move downward. Since the vertical support 27 is fixedly installed on the air-jet loom 30 and the connecting cross frame 26 is slidably sleeved on the vertical support 27, it can ensure that the connecting cross frame 26 moves up and down in a straight line. When the connecting cross frame 26 moves downward, it can drive the support cross bar 24 to move downward simultaneously. When the support cross bar 24 moves downward to the limit position, it can drive the cutting knife 23 to cut the fabric on the guide roller 3. Therefore, when the take-up reel 31 winds the fabric subsequently, the fabric can pass through the cutting knife 23, and the edge of the fabric can be cut, improving the edge quality of the fabric. At the same time, when the displacement frame 16 moves towards the rear end, it can also drive the air nozzle 6 to move towards the rear end simultaneously. When the round rod 17 tensions the fabric, the rear end of the air nozzle 6 and the nylon brush 7 can contact the surface of the fabric. At this time, the air nozzle 6 is connected to an external vacuum cleaner through a trachea. The vacuum cleaner can be turned on, so that the air nozzle 6 can absorb the lint on the fabric surface. At the same time, when the air nozzle 6 moves towards the rear end to the limit position, the first plastic wheel 12 can contact the second plastic wheel 33. At the same time, when the second plastic wheel 33 rotates, it can drive the first plastic wheel 12 and the second gear 11 to rotate simultaneously. When the second gear 11 rotates, it can drive the first gear 9 and the nylon brush 7 to rotate simultaneously through the transmission belt 10, so that the nylon brush 7 can sweep away the lint and residual flocs attached to the fabric surface, improving the cleanliness of the fabric surface. Moreover, when the air nozzle 6 moves towards the rear end, it can drive the rack 8 to displace on the second gear 32. And another air nozzle 6, nylon brush 7, rack 8, first gear 9, transmission belt 10, second gear 11, first plastic wheel 12, support base frame 13 and support shaft 14 are installed inside the air-jet loom 30. When the front air nozzle 6 moves towards the rear end, the front rack 8 can drive the second gear 32 to rotate, so that the rear rack 8 can drive the rear air nozzle 6 to displace towards the front end simultaneously, so that the two air nozzles 6 and the nylon brushes 7 can contact the front and rear ends of the fabric.When the two first plastic wheels 12 are in contact with the front and rear surfaces of the second plastic wheel 33, the two nylon brushes 7 can rotate at the same time to clean the front and rear ends of the cloth, and the extension rod installed between the air nozzle 6 and the supporting base frame 13 slides inside the guide groove 35, so that the air nozzle 6 can be ensured to move in a straight line. At the same time, the racks 8 at the front and rear ends are respectively engaged with the top and bottom ends of the second gear 32, so that the racks 8 can be prevented from interfering with each other when the two air nozzles 6 are displaced. At the same time, when the displacement frame 16 is pulled toward the front end, the round rod 17 can be driven to break contact with the cloth, and the supporting vertical rod 18 drives the second piston rod 29 from the L-shaped air cylinder 2 5 is pulled forward, so that the first piston rod 28 can drive the supporting cross bar 24 to move upward, so that the cutting knife 23 is out of contact with the cloth, and the cutting knife 23 is prevented from continuously cutting the cloth. At the same time, when the displacement frame 16 moves to the front end, it can drive the front rack 8 to move forward on the second gear 32, so that the second gear 32 can drive the rear rack 8 to move backward, so that the two air nozzles 6 and the nylon brush 7 can be separated from the cloth respectively. At the same time, the first plastic wheel 12 can also be out of contact with the second plastic wheel 33, so that the second plastic wheel 33 can prevent the second gear 11 from continuously driving the second plastic wheel 33 to rotate, and the air nozzle 6 and the nylon brush 7 are reset.

[0040] Example 2

[0041] On the basis of Example 1, Figure 8 As shown, the cutting blade 23 further includes a positioning bolt 36 and an extension back plate 37 . The extension back plate 37 is fixedly mounted on the side end of the cutting blade 23 , and the positioning bolt 36 is threadedly inserted into the top center of the extension back plate 37 .

[0042] When implementing this embodiment, a sleeve hole matching the support cross bar 24 is opened inside the cutting knife 23 so that the cutting knife 23 can be sleeved on the support cross bar 24, thereby adjusting the cutting position of the cutting knife 23. At the same time, when the adjustment of the cutting knife 23 is completed, the positioning bolt 36 can be screwed and rotated to be tightened with the support cross bar 24, so that the cutting knife 23 can be restricted on the top of the support cross bar 24, and the adjustment of the cutting knife 23 is completed.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving air-jet loom for textile production, comprising a support member (2), a positioning member (1) is fixedly installed at the front end of the support member (2), and guide rollers (3) are symmetrically and rotatably installed at the front end of the top of the support member (2), characterized in that: The alignment component (1) includes a guiding device (4) and a displacement device (5). The guiding device (4) is fixedly installed at the top end of the displacement device (5). The guiding device (4) includes an air nozzle (6), a nylon brush (7), a rack (8), a first gear (9), a transmission toothed belt (10), a second gear (11), a first plastic wheel (12), a support base frame (13), and a support shaft (14). The support base frame (13) is fixedly installed at both ends of the air nozzle (6). The rack (8) is fixedly installed at the rear of the side end of the support base frame (13) close to the air nozzle (6). The first gear (9) and the second gear (11) are rotatably installed at the top and bottom of the side end of the support base frame (13) facing away from the air nozzle (6). The transmission toothed belt (10) is meshed and sleeved on the outer circles of the first gear (9) and the second gear (11). The first plastic wheel (12) is fixedly installed at the center of the side end of the second gear (11) close to the support base frame (13). The support shaft (14) is fixedly installed between the two first gears (9). The nylon brush (7) is fixedly installed on the outer circle of the support shaft (14).

2. The energy-saving air-jet loom for textile production according to claim 1, wherein: The displacement device (5) includes a support bottom frame (15), a displacement frame (16), a round rod (17), a support vertical rod (18), a return spring (19), and an H-shaped sliding key (20). The return spring (19) is fixedly installed at the rear end inside the support bottom frame (15). The H-shaped sliding key (20) is fixedly installed at the front end of the return spring (19). The displacement frame (16) is fixedly installed between the two H-shaped sliding keys (20). The round rod (17) is rotatably installed at the rear end of the displacement frame (16). The support vertical rod (18) is fixedly installed at both ends of the top of the displacement frame (16).

3. An energy-saving air-jet loom for textile production according to claim 2, characterized in that: The support component (2) includes a synchronization device (21) and a positioning device (22). The synchronization device (21) is fixedly installed at the top end of the positioning device (22).

4. An energy-saving air-jet loom for textile production according to claim 3, characterized in that: The synchronization device (21) includes a cutting knife (23), a support cross bar (24), an L-shaped air cylinder (25), a connecting cross frame (26), a vertical support (27), a first piston rod (28), and a second piston rod (29). The connecting cross frame (26) is slidably sleeved on the outer circle of the vertical support (27). The first piston rod (28) is fixedly installed at the front end of the connecting cross frame (26). The support cross bar (24) is fixedly installed between the two connecting cross frames (26). The cutting knife (23) is symmetrically fixedly installed on the outer circle of the support cross bar (24). The second piston rod (29) is slidably inserted into the front end inside of the L-shaped air cylinder (25).

5. An energy-saving air-jet loom for textile production according to claim 4, characterized in that: The positioning device (22) includes an air-jet loom (30), a winding shaft (31), a second gear (32), a second plastic wheel (33), a movable groove (34), and a guiding groove (35). The movable groove (34) is symmetrically formed inside both ends of the air-jet loom (30). The guiding groove (35) is symmetrically formed on both inner sides of the movable groove (34). The second gear (32) is rotatably installed inside the movable groove (34). The winding shaft (31) is rotatably installed at the front bottom of the air-jet loom (30). The second plastic wheels (33) are fixedly installed at both ends of the winding shaft (31).

6. An energy-saving air-jet loom for textile production according to claim 5, characterized in that: The air nozzle (6) is fixedly installed at the top end of the displacement frame (16). The top of the rear end of the support vertical rod (18) is connected to the front end of the second piston rod (29). The L-shaped air cylinder (25) is fixedly installed at both top ends of the air-jet loom (30). The vertical brackets (27) are symmetrically and fixedly installed at the rear end of the top of the air-jet loom (30). The rear end of the support chassis (15) is installed at the front end of the air-jet loom (30).

7. An energy-saving air-jet loom for textile production according to claim 6, characterized in that: The rack (8) meshes with the second gear (32). The support base frame (13) is slidably inserted inside the guiding groove (35). The first plastic wheel (12) is aligned with the second plastic wheel (33). A card slot adapted to the H-shaped sliding key (20) is formed inside the side end of the support chassis (15) close to the displacement frame (16). The inside of the L-shaped air cylinder (25) is provided in a hollow state, and a sealed cavity is formed among the L-shaped air cylinder (25), the first piston rod (28), and the second piston rod (29).

8. An energy-saving air-jet loom for textile production according to claim 7, characterized in that: The transmission ratio of the second plastic wheel (33) to the first plastic wheel (12) is 1:

20. The nylon brush (7) is located above the air nozzle (6). An extension rod is fixedly installed between the support base frame (13) and the air nozzle (6), and the rack (8) is fixedly installed behind the extension rod.

9. An energy-saving air-jet loom for textile production according to claim 8, characterized in that: A vertical rod is installed at the bottom end of the L-shaped air cylinder (25), and the vertical rod is installed at the front end of the top of the air-jet loom (30). One air nozzle (6), one nylon brush (7), one rack (8), one first gear (9), one transmission toothed belt (10), one second gear (11), one first plastic wheel (12), one support base frame (13), and one support shaft (14) are respectively arranged inside the air-jet loom (30).

10. An energy-saving air-jet loom for textile production according to claim 9, characterized in that: The cutting knife (23) further includes a positioning bolt (36) and an extension back plate (37). The extension back plate (37) is fixedly installed on the side end of the cutting knife (23). The positioning bolt (36) is threadedly inserted into the center of the top end of the extension back plate (37).

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