Velvet cutting mechanism of rapier loom

Abstract

The utility model discloses a velvet cutting mechanism of a rapier loom, which comprises a rack, a transverse beam extending left and right is fixed in the middle of the rack, a front support frame is fixed at the front part of the transverse beam, a dovetail groove slide rail extending left and right is fixed on the top surface of the front support frame, and a cutting knife slide block is inserted in the dovetail groove slide rail in a sleeving manner and is matched with the dovetail groove slide rail. A cutting knife is fixed to the front portion of the cutting knife sliding block and faces the middle of lint conveyed between the upper guide beam and the lower guide beam in the front. A left supporting beam and a cutter grinding device are fixed to the left side wall of the upper portion of a left side plate of the rack, a gear transmission box is fixed to the left side wall of the lower portion of the left side plate of the rack, and a main driving motor is installed on the gear transmission box. Automatic grinding can be achieved after cutting of the cutting knife, normal cutting can be guaranteed every time, the cutting knife, the upper grinding blade and the lower grinding blade are driven by the same main driving motor to operate, manufacturing cost is saved, synchronism is achieved, and energy consumption is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of textile equipment, and more specifically to a pile cutting mechanism of a rapier loom. Background technology:

[0002] The rapier loom is the most widely used shuttleless loom at present. In addition to the characteristics of high speed, high degree of automation and high-efficiency production of shuttleless looms, its active weft insertion method has strong variety adaptability and can adapt to the weft insertion of various types of yarns. In addition, the rapier loom also has obvious advantages in multi-color weft weaving and can produce color-dyed products with up to 16 colors of weft yarns.

[0003] The existing rapier loom, such as the multi-shuttle double-weft insertion rapier loom, will make double-layer velvet when weaving velvet, and then the double-layer velvet needs to be separated into upper and lower layers and wound separately. The existing method is to install a cutting knife on the frame to separate them. However, after being used for a certain period of time, the cutting knife needs to be polished to ensure normal cutting every time. However, there is no polishing mechanism on the existing frame, and the cutting knife can only be replaced after being used for a certain period of time, which has poor effect and low efficiency. Utility model content:

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a rapier loom tuft cutting mechanism, which can automatically grind after the cutting knife cuts to ensure normal cutting every time, and the cutting knife and the upper grinding blade and the lower grinding blade are all driven by the same main drive motor, thereby saving manufacturing costs, achieving synchronization and reducing energy consumption.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A velvet cutting mechanism of a rapier loom comprises a frame, a horizontal beam extending left and right is fixed in the middle of the frame, a front support frame is fixed in front of the horizontal beam, a dovetail groove slide rail extending left and right is fixed on the top surface of the front support frame, a cutting knife slider is inserted in the dovetail groove slide rail and matched with the dovetail groove slide rail, a cutting knife is fixed in front of the cutting knife slider, and the cutting knife faces the middle of the velvet cloth conveyed between the upper and lower guide beams in front;

[0007] A left supporting beam and a knife sharpening device are fixed on the upper left side wall of the left side plate of the frame, a gear transmission box is fixed on the lower left side wall of the left side plate of the frame, a main driving motor is installed on the gear transmission box, one end of the first output shaft of the gear transmission box extends out of a side wall of the gear transmission box and is fixed with a cutting knife traction wheel, the main driving motor drives the cutting knife traction wheel to rotate, a right supporting beam is fixed on the upper right side wall of the right side plate of the frame, a right supporting frame is fixed on the lower right side wall of the right side plate of the frame, the end portion of the left supporting beam is movably provided with a first guide wheel through a hinge shaft, the end portion of the right supporting beam is movably connected with a second guide wheel through a hinge shaft, and the end portion of the right supporting frame is movably connected with a third guide wheel, the cutting knife traction rope is tensioned on the first guide wheel, the second guide wheel, the third guide wheel and the cutting knife traction wheel, and the upper part of the cutting knife traction rope is fixed on the cutting knife sliding block.

[0008] A motor seat is fixed on the left side wall of the gear transmission box, the main drive motor is fixed on the motor seat, the drive wheel is fixed on the output shaft of the main drive motor, an input shaft is movably connected to the front wall plate of the gear transmission box through a bearing, the front end of the input shaft extends out of the front wall surface of the gear transmission box and is fixed with an input wheel, the synchronous belt is tensioned on the input wheel and the drive wheel, the inner end of the input shaft extends into the gear transmission box, a first gear part is provided on the outer side wall thereof, a camshaft is provided in the gear transmission box, the front and rear ends of the camshaft are movably connected in the gear transmission box through bearings, a second gear and an eccentric cam are fixed on the camshaft, an eccentric wheel connecting rod is movably connected to the outer side wall of the eccentric cam through a bearing, a stroke adjusting bolt is fixed to the lower part of the eccentric wheel connecting rod, and a rod body part of the stroke adjusting bolt is inserted into the sleeve In the waist-shaped through groove in the middle part of the fan-shaped tooth arm, a first connecting shaft is fixed to the left end of the fan-shaped tooth arm, and the front and rear ends of the first connecting shaft are movably connected to the front and rear wall plates of the gear transmission box through bearings, and the first output shaft is movably connected to the front and rear wall plates of the gear transmission box through bearings, and the fifth gear is fixed to the first output shaft, and a rocker arm is fixed to the first connecting shaft, and the end of the rocker arm is movably connected to a long connecting rod through a hinge shaft, and the top of the long connecting rod extends out of the top surface of the top plate of the gear transmission box. A second connecting shaft is provided in the middle part of the interior of the gear transmission box, and the two ends of the second connecting shaft are movably connected to the front and rear wall plates of the gear transmission box through bearings, and the third gear and the fourth gear are fixed to the second connecting shaft, and the rear end of the first output shaft extends out of the rear wall plate of the gear transmission box and is fixed with a cutter traction wheel;

[0009] The first gear portion is meshed with the second gear, the sector-shaped tooth portion of the sector-shaped tooth arm is meshed with the fourth gear, and the third gear is meshed with the fifth gear.

[0010] A vertical connecting beam is fixed on the top surface of the top plate of the gear transmission box, the top of the vertical connecting beam is fixed on the left supporting beam, the middle part of the vertical connecting beam is movably connected with a rotating shaft through a bearing, a first angular swing arm and a second angular swing arm are fixed on the rotating shaft, the top of the long connecting rod is movably connected to the end of the first angular swing arm, the end of the second angular swing arm is movably connected to the left end of the short connecting rod on the right side thereof, and the right end of the short connecting rod is movably connected to the lower part of the ratchet swing arm on the right side thereof;

[0011] The middle part of the ratchet swing arm is movably connected to the main input shaft of the knife sharpening device through a bearing.

[0012] The knife sharpening device comprises a knife sharpening gear housing, which is fixed on the upper left wall of the left side plate of the frame;

[0013] The main input shaft is movably connected to the front and rear wall plates of the grinding gear housing through bearings, the rear part of the main input shaft extends out of the rear wall plate of the grinding gear housing and is movably connected to a ratchet swing arm through bearings, a ratchet is fixed on the top of the ratchet swing arm, a ratchet is fixed on the rear end of the main input shaft, and the ratchet matches with the outer teeth of the ratchet;

[0014] A driving bevel gear is fixed in the middle of the main input shaft, and the top plate of the grinding gear housing is movably connected to two vertical rotating shafts through bearings. The tops of the two vertical rotating shafts extend out of the top surface of the top plate of the grinding gear housing and are respectively installed with an upper grinding blade and a lower grinding blade, and the cutting knife corresponds to the bottom surface of the edge of the upper grinding blade and the top surface of the edge of the lower grinding blade;

[0015] The bottoms of the two vertical rotating shafts extend into the sharpening gear housing and are respectively fixed with a first transmission gear and a second transmission gear, wherein a transmission bevel gear is fixed at the bottom end of one of the vertical rotating shafts, the driving bevel gear is meshed with the transmission bevel gear, and the first transmission gear is meshed with the second transmission gear.

[0016] The bottom surface of the edge of the upper grinding blade is formed with an annular groove, a grinding ring is nested in the annular groove, the top surface of the grinding ring is fixed on the top surface of the annular groove, and the bottom surface of the grinding ring is a conical wall surface;

[0017] An upper annular groove is formed on the top surface of the edge of the lower grinding blade, and a grinding ring is also nested in the upper annular groove. The bottom surface of the grinding ring is fixed on the bottom surface of the upper annular groove, and the top surface of the grinding ring of the lower grinding blade is a conical wall surface.

[0018] The outstanding effects of the utility model are:

[0019] Compared with the existing technology, it can automatically grind the cutter after cutting to ensure normal cutting every time, and its cutter and upper grinding blade and lower grinding blade are all driven by the same main drive motor, saving manufacturing costs, achieving synchronization and reducing energy consumption. Description of the drawings:

[0020] Figure 1 It is a partial structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the partial structure of the utility model in the side view direction;

[0022] Figure 3 yes Figure 1 AA partial cross-sectional view;

[0023] Figure 4 It is a partial structural schematic diagram of the knife sharpening gear housing of the utility model;

[0024] Figure 5 yes Figure 4 Schematic diagram of the local structure of changing angle. Specific implementation method:

[0025] For example, see Figures 1 to 5 As shown, a velvet cutting mechanism of a rapier loom comprises a frame 10, a horizontal beam 11 extending left and right is fixed in the middle of the frame 10, a front support frame 12 is fixed in the front of the horizontal beam 11, a dovetail groove slide rail 13 extending left and right is fixed on the top surface of the front support frame 12, a cutting knife slider 14 is inserted in the dovetail groove slide rail 13 and matched with the dovetail groove slide rail 13, a cutting knife 15 is fixed in the front of the cutting knife slider 14, and the cutting knife 15 faces the middle part of the velvet cloth 100 conveyed between the upper and lower guide beams 111 in front, the lower guide beam 111 is fixed at the front of the left and right side plates of the frame 10, and the upper guide beam 111 is installed on the guide frame at the front of the frame 10, which is a conventional structure and will not be described in detail here;

[0026] A left support beam 20 and a sharpening device 30 are fixed on the upper left wall of the left side plate of the frame 10, a gear transmission box 40 is fixed on the lower left wall of the left side plate of the frame 10, a main drive motor 41 is installed on the gear transmission box 40, one end of the first output shaft 42 of the gear transmission box 40 extends out of a side wall of the gear transmission box 40 and is fixed with a cutter traction wheel 43, the main drive motor 41 drives the cutter traction wheel 43 to rotate, a right support beam 16 is fixed on the upper right wall of the right side plate of the frame 10, a right support frame 17 is fixed on the lower right wall of the right side plate of the frame 10, the end of the left support beam 20 is movably connected with the first guide wheel 1 through a hinge shaft, the end of the right support beam 16 is movably connected with the second guide wheel 2 through a hinge shaft, and the end of the right support frame 17 is arranged A tensioning adjustment mechanism is provided, which is an axis body movably connected to the center of the third guide wheel 3 through a bearing and inserted into the transverse elongated through groove of the plate body of the right support frame 17. A transverse screw is fixed on one side wall, and the transverse screw is inserted into the right side plate of the right support frame 17. Two adjusting nuts are screwed on the transverse screw, and the right side plate is clamped between the two adjusting nuts. By loosening the two adjusting nuts and moving the transverse screw to the right or left, the position of the third guide wheel 3 can be adjusted. Then, by loosening the two adjusting nuts, the position of the third guide wheel 3 can be changed, and the cutter traction rope 4 is tensioned on the first guide wheel 1, the second guide wheel 2, the third guide wheel 3 and the cutter traction wheel 43, thereby changing the tension of the cutter traction rope 4, and the upper part of the cutter traction rope 4 is fixed on the cutter slider 14.

[0027] Further, a motor seat 44 is fixed on the left side wall of the gear transmission box 40, a main drive motor 41 is fixed on the motor seat 44, a drive wheel 411 is fixed on the output shaft of the main drive motor 41, an input shaft 45 is movably connected to the front wall plate of the gear transmission box 40 through a bearing, the front end of the input shaft 45 extends out of the front wall surface of the gear transmission box 40 and is fixed with an input wheel 451, the synchronous belt 5 is tensioned on the input wheel 451 and the drive wheel 411, the inner end of the input shaft 45 extends into the gear transmission box 40, a first gear part 452 is formed or fixed on the outer side wall thereof, a camshaft 46 is provided in the gear transmission box 40, the front and rear ends of the camshaft 46 are movably connected to the gear transmission box 40 through bearings, a second gear 461 and an eccentric cam 462 are fixed on the camshaft 46, an eccentric wheel connecting rod 463 is movably connected to the outer side wall of the eccentric wheel connecting rod 463 through a bearing, a stroke adjustment bolt is fixed to the lower part of the eccentric wheel connecting rod 463, and the stroke adjustment bolt The rod body is inserted into the waist-shaped through groove in the middle of the fan-shaped tooth arm 47, and the left end of the fan-shaped tooth arm 47 is fixed with a first connecting shaft 471, and the front and rear ends of the first connecting shaft 471 are movably connected to the front and rear wall plates of the gear transmission box 40 through bearings, and the first output shaft 42 is movably connected to the front and rear wall plates of the gear transmission box 40 through bearings. The fifth gear 421 is fixed on the first output shaft 42, and a rocker arm 472 is fixed on the first connecting shaft 471. The end of the rocker arm 472 is movably connected to a long connecting rod 473 through a hinge shaft, and the top of the long connecting rod 473 extends out of the top surface of the top plate of the gear transmission box 40. A second connecting shaft 48 is provided in the middle of the interior of the gear transmission box 40, and the two ends of the second connecting shaft 48 are movably connected to the front and rear wall plates of the gear transmission box 40 through bearings, and a third gear 481 and a fourth gear 482 are fixed on the second connecting shaft 48, and the rear end of the first output shaft 42 extends out of the rear wall plate of the gear transmission box 40 and is fixed with a cutter traction wheel 43;

[0028] The first gear portion 452 is meshed with the second gear 461 , the sector-shaped tooth portion of the sector-shaped tooth arm 47 is meshed with the fourth gear 482 , and the third gear 481 is meshed with the fifth gear 421 .

[0029] Further, a vertical connecting beam 50 is fixed to the top surface of the top plate of the gear transmission box 40, the top of the vertical connecting beam 50 is fixed to the left support beam 20, the middle part of the vertical connecting beam 50 is movably connected to a rotating shaft 51 through a bearing, a first angular swing arm 52 and a second angular swing arm 53 are fixed to the rotating shaft 51, the top of the long connecting rod 473 is movably connected to the end of the first angular swing arm 52, the end of the second angular swing arm 53 is movably connected to the left end of the short connecting rod 54 on the right side thereof, and the right end of the short connecting rod 54 is movably connected to the lower part of the ratchet swing arm 55 on the right side thereof;

[0030] The middle portion of the ratchet swing arm 55 is movably connected to the main input shaft 31 of the sharpening device 30 via a bearing.

[0031] Further, the knife sharpening device 30 includes a knife sharpening gear housing 32, and the knife sharpening gear housing 32 is fixed to the upper left wall of the left side plate of the frame 10;

[0032] The main input shaft 31 is movably connected to the front and rear wall plates of the sharpening gear housing 32 through bearings. The rear part of the main input shaft 31 extends out of the rear wall plate of the sharpening gear housing 32 and is movably connected to a ratchet swing arm 55 through bearings. A ratchet 56 is fixed to the top of the ratchet swing arm 55. The rear end of the main input shaft 31 is fixed to a ratchet wheel 33, and the ratchet wheel 33 is matched with the outer teeth of the ratchet wheel 33.

[0033] A driving bevel gear 34 is fixed to the middle of the main input shaft 31. The top plate of the grinding gear housing 32 is movably connected to two vertical rotating shafts 35 through bearings. The tops of the two vertical rotating shafts 35 extend out of the top surface of the top plate of the grinding gear housing 32 and are respectively installed with an upper grinding blade 36 and a lower grinding blade 37. The cutting knife 15 corresponds to the bottom surface of the edge of the upper grinding blade 36 and the top surface of the edge of the lower grinding blade 37.

[0034] The bottoms of the two vertical rotating shafts 35 extend into the sharpening gear housing 32 and are respectively fixed with a first transmission gear 351 and a second transmission gear 352. A transmission bevel gear 353 is fixed to the bottom end of one of the vertical rotating shafts 35. The driving bevel gear 34 meshes with the transmission bevel gear 353, and the first transmission gear 351 and the second transmission gear 352 mesh with each other.

[0035] Furthermore, the bottom surface of the edge of the upper grinding blade 36 is formed with an annular groove, a grinding ring is nested in the annular groove, the top surface of the grinding ring is fixed on the top surface of the annular groove, and the bottom surface of the grinding ring is a conical wall surface;

[0036] An upper annular groove is formed on the top surface of the edge of the lower grinding blade 37, and a grinding ring is also nested in the upper annular groove. The bottom surface of the grinding ring is fixed on the bottom surface of the upper annular groove, and the top surface of the grinding ring of the lower grinding blade 37 is a conical wall surface.

[0037] This embodiment is generally installed when in use, and it is operated by the main driving motor 41, so that the driving wheel 411 rotates, and the input wheel 451 is driven to rotate through the synchronous belt 5, so that the input shaft 45 rotates, and the first gear part 452 rotates to drive the second gear 461 to rotate, so that the camshaft 46 rotates, so that the eccentric wheel connecting rod 463 swings, and drives the sector tooth arm 47 to rotate;

[0038] When the fan-shaped tooth arm 47 rotates, one side of it drives the fourth gear 482 to rotate, so that the second connecting shaft 48 rotates, so that the third gear 481 rotates, and the third gear 481 drives the fifth gear 421 to rotate, so that the first output shaft 42 rotates, so that the cutter traction wheel 43 rotates, drives the cutter traction rope 4 to run, so that the cutter slider 14 slides along the dovetail groove slide rail 13, and the cutter 15 cuts the wool layer in the middle of the velvet cloth 100 transported between the two guide beams 111. After cutting, it continues to move to the left to between the upper grinding blade 36 and the lower grinding blade 37. When the fan-shaped tooth arm 47 rotates, the other side of it drives the long connecting rod 473 to rise or fall, which drives the first angular swing arm 52 rotates, causing the rotating shaft 51 to rotate, causing the second angular swing arm 53 to rotate, causing the short connecting rod 54 to move laterally, causing the pawl swing arm 55 to swing, and the pawl 56 drives the ratchet 33 to rotate, causing the main input shaft 31 to rotate, causing the driving bevel gear 34 to drive the transmission bevel gear 353 to rotate, causing the first transmission gear 351 or the second transmission gear 352 to rotate, and driving the second transmission gear 352 or the first transmission gear 351 to rotate, causing the two vertical rotating shafts 35 to rotate, causing the upper grinding blade 36 and the lower grinding blade 37 to rotate, and at this time, the cutting knife 15 moves between the upper grinding blade 36 and the lower grinding blade 37, and its top and bottom surfaces are in contact with the corresponding grinding rings to achieve grinding, and the effect is good.

[0039] The polished cutting knife 15 moves to the left to the front of the sensing end of the proximity switch fixed on the bracket at the rear left part of the left supporting beam 20 on the left side. The proximity switch senses that the cutting knife 15 has moved into place. At this time, it can transmit the sensing signal to the control host, and the control host can control the main drive motor 41 to run in reverse to pull the cutting knife 15 back. A proximity switch is also fixed at the rear of the right end of the transverse beam 11, which can sense that the cutting knife 15 has moved to the right into place. At this time, it can transmit the sensing signal to the control host, and the control host can control the main drive motor 41 to run in reverse, so that the cutting knife 15 moves to the left, realizing back and forth movement and cutting.

[0040] The cut flannel is transported backward along the winding guide rollers installed at the upper and lower parts of the sea frame 10, and is wound by the reel device at the rear.

[0041] Among them, a limit sleeve is fixed on the top of a vertical rotating shaft 35, a radially extending edge is formed on the bottom outer wall of the limit sleeve, an elastic buffer sleeve and a lower grinding blade 37 are inserted into the upper part of the limit sleeve, an upper cover body is fixed on the top of the limit sleeve, and the lower grinding blade 37 is clamped between the bottom surface of the upper cover body and the elastic buffer sleeve;

[0042] A vertical limit sleeve is fixed to the top of another vertical rotating shaft 35, and a radially extending edge is formed on the top outer wall of the vertical limit sleeve. An elastic buffer sleeve, an upper grinding blade 36 and a lower cover body are inserted into the vertical limit sleeve. A limiting ring body is fixed to the bottom of the vertical limit sleeve, and the bottom surface of the lower cover body is pressed against the top surface of the limit ring body, and the top surface of the lower cover body is pressed against the bottom surface of the upper grinding blade 36. The top surface of the upper grinding blade 36 is pressed against the bottom surface of the elastic buffer sleeve, and the top surface of the elastic buffer sleeve is pressed against the bottom surface of the radially extending edge. This structure allows the upper grinding blade 36 and the lower grinding blade 37 to be fine-tuned up and down, so that when the cutting knife 15 moves along the upper grinding blade 36 and the lower grinding blade 37, it will not collide and get stuck with the upper grinding blade 36 and the lower grinding blade 37, thereby ensuring normal grinding.

[0043] Finally, the above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A pile cutting mechanism of a rapier loom, comprising a frame (10), characterized in that: A horizontal beam (11) extending left and right is fixed to the middle of the frame (10), a front support frame (12) is fixed to the front of the horizontal beam (11), a dovetail groove slide rail (13) extending left and right is fixed to the top surface of the front support frame (12), a cutting knife slider (14) is inserted into the dovetail groove slide rail (13), a cutting knife (15) is fixed to the front of the cutting knife slider (14), and the cutting knife (15) faces the middle of the flannel (100) in front; A left support beam (20) and a knife sharpening device (30) are fixed on the upper left wall of the left side plate of the frame (10); a gear transmission box (40) is fixed on the lower left wall of the left side plate of the frame (10); a main drive motor (41) is installed on the gear transmission box (40); one end of a first output shaft (42) of the gear transmission box (40) extends out of a side wall of the gear transmission box (40) and is fixed with a cutter traction wheel (43); the main drive motor (41) drives the cutter traction wheel (43) to rotate; a right support beam (20) is fixed on the upper right wall of the right side plate of the frame (10); A right support frame (17) is fixed on the right side wall of the lower part of the right side plate of the frame (10); the end of the left support beam (20) is movably connected to a first guide wheel (1) through a hinge shaft; the end of the right support beam (16) is movably connected to a second guide wheel (2) through a hinge shaft; the end of the right support frame (17) is movably connected to a third guide wheel (3); a cutting knife traction rope (4) is tensioned on the first guide wheel (1), the second guide wheel (2), the third guide wheel (3) and the cutting knife traction wheel (43); and the upper part of the cutting knife traction rope (4) is fixed on the cutting knife slider (14).

2. The pile cutting mechanism of a rapier loom according to claim 1, characterized in that: A motor seat (44) is fixed on the left side wall of the gear transmission box (40), a main drive motor (41) is fixed on the motor seat (44), a drive wheel (411) is fixed on the output shaft of the main drive motor (41), an input shaft (45) is movably connected to the front wall plate of the gear transmission box (40) through a bearing, a front end of the input shaft (45) extends out of the front wall surface of the gear transmission box (40) and is fixed with an input wheel (451), a synchronous belt (5) is tensioned on the input wheel (451) and the drive wheel (411), and an inner portion of the input shaft (45) is provided. The end of the camshaft (46) extends into the gear transmission box (40), and a first gear portion (452) is provided on the outer wall of the camshaft (46). The gear transmission box (40) is provided with a camshaft (46). The front and rear ends of the camshaft (46) are movably connected to the gear transmission box (40) through bearings. A second gear (461) and an eccentric cam (462) are fixed to the camshaft (46). An eccentric wheel connecting rod (463) is movably connected to the outer wall of the eccentric wheel connecting rod (462) through a bearing. A stroke adjustment bolt is fixed to the lower part of the eccentric wheel connecting rod (463). The rod body of the stroke adjustment bolt The first connecting shaft (471) is fixed to the left end of the sector-shaped tooth arm (47), and the front and rear ends of the first connecting shaft (471) are movably connected to the front and rear wall plates of the gear transmission box (40) through bearings. The first output shaft (42) is movably connected to the front and rear wall plates of the gear transmission box (40) through bearings. The fifth gear (421) is fixed to the first output shaft (42), and a rocker arm (472) is fixed to the first connecting shaft (471). The end of the rocker arm (472) is connected to the front and rear wall plates of the gear transmission box (40) through a hinge shaft. A long connecting rod (473) is movably connected, the top of the long connecting rod (473) protrudes from the top surface of the top plate of the gear transmission box (40), a second connecting shaft (48) is provided in the middle of the interior of the gear transmission box (40), both ends of the second connecting shaft (48) are movably connected to the front and rear wall plates of the gear transmission box (40) through bearings, a third gear (481) and a fourth gear (482) are fixed on the second connecting shaft (48), and the rear end of the first output shaft (42) protrudes from the rear wall plate of the gear transmission box (40) and is fixed with a cutter traction wheel (43); The first gear portion (452) meshes with the second gear (461), the sector tooth portion of the sector tooth arm (47) meshes with the fourth gear (482), and the third gear (481) meshes with the fifth gear (421).

3. The pile cutting mechanism of a rapier loom according to claim 2, characterized in that: A vertical connecting beam (50) is fixed on the top surface of the top plate of the gear transmission box (40), the top of the vertical connecting beam (50) is fixed on the left support beam (20), the middle part of the vertical connecting beam (50) is movably connected to a rotating shaft (51) through a bearing, a first angular swing arm (52) and a second angular swing arm (53) are fixed on the rotating shaft (51), the top of the long connecting rod (473) is movably connected to the end of the first angular swing arm (52), the end of the second angular swing arm (53) is movably connected to the left end of the short connecting rod (54) on the right side thereof, and the right end of the short connecting rod (54) is movably connected to the lower part of the ratchet swing arm (55) on the right side thereof; The middle part of the ratchet swing arm (55) is movably connected to the main input shaft (31) of the knife sharpening device (30) through a bearing.

4. The pile cutting mechanism of a rapier loom according to claim 1, characterized in that: The knife sharpening device (30) comprises a knife sharpening gear housing (32), and the knife sharpening gear housing (32) is fixed on the upper left wall of the left side plate of the frame (10); The main input shaft (31) is movably connected to the front and rear wall plates of the sharpening gear housing (32) through bearings, the rear part of the main input shaft (31) extends out of the rear wall plate of the sharpening gear housing (32) and is movably connected to a ratchet swing arm (55) through bearings, a ratchet (56) is fixed to the top of the ratchet swing arm (55), a ratchet wheel (33) is fixed to the rear end of the main input shaft (31), and the ratchet wheel (56) is matched with the outer teeth of the ratchet wheel (33); A driving bevel gear (34) is fixed to the middle of the main input shaft (31); the top plate of the grinding gear housing (32) is movably connected to two vertical rotating shafts (35) through bearings; the tops of the two vertical rotating shafts (35) extend out of the top surface of the top plate of the grinding gear housing (32) and are respectively provided with an upper grinding blade (36) and a lower grinding blade (37); the cutting knife (15) corresponds to the bottom surface of the edge of the upper grinding blade (36) and the top surface of the edge of the lower grinding blade (37); The bottoms of the two vertical rotating shafts (35) extend into the sharpening gear housing (32) and are respectively fixed with a first transmission gear (351) and a second transmission gear (352), a transmission bevel gear (353) is fixed at the bottom end of one of the vertical rotating shafts (35), the driving bevel gear (34) is meshed with the transmission bevel gear (353), and the first transmission gear (351) is meshed with the second transmission gear (352).

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