A circular knitting machine

Abstract

The application discloses a kind of circular knitting machines, including big round machine body and be located yarn frame in the two sides of the big round machine body, the big round machine body is sequentially provided with yarn feeding part, knitting part and winding mechanism from top to bottom, the winding mechanism includes the driving winding roller laterally arranged in the big round machine body and the compression roller matched with the driving winding roller, the winding mechanism also includes cloth inspection system, the application can improve the degree of automation of big round machine, can inspect cloth while winding cloth, promptly find out the defect point of cloth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of knitting equipment, in particular to the technical field of a circular knitting machine. BACKGROUND

[0002] The circular knitting machine is also called circular weft knitting machine. The circular knitting machine has many advantages, such as high speed, high output, fast pattern change, good fabric quality, less process and strong product adaptability. However, the yarn frame of the circular knitting machine is inconvenient to change yarn. After one roll of yarn is used up, the next roll of yarn needs to be manually changed, which is inconvenient to use and brings inconvenience to the operator, and increases the labor cost and production cost. The existing circular knitting machine does not have a cloth inspection system. The cloth needs to be wound by a winding roller first, and then inspected by a separate cloth inspection machine to find the defects of the cloth, which is very troublesome. SUMMARY

[0003] The purpose of the present application is to solve the problems in the prior art and provide a circular knitting machine which can improve the automation degree of the circular knitting machine, inspect the cloth while winding the cloth, and find the defects of the cloth in time.

[0004] To achieve the above purpose, the present application provides a circular knitting machine, which comprises a circular knitting machine body and a yarn frame arranged on both sides of the circular knitting machine body. The circular knitting machine body is sequentially provided with a yarn feeding part, a knitting part and a winding mechanism from top to bottom. The winding mechanism comprises a driving winding roller horizontally arranged on the circular knitting machine body and a compression roller matched with the driving winding roller. The winding mechanism further comprises a cloth inspection system. The yarn frame comprises a horizontal feeding part horizontally arranged at the lower end of the yarn frame and a horizontal yarn drum discharging part horizontally arranged at the top of the yarn frame. A vertical frame part is arranged vertically between the horizontal feeding part and the horizontal yarn drum discharging part. The yarn drum rod is movably arranged on the yarn frame. A yarn drum driving mechanism is arranged in the yarn frame for driving the yarn drum rod to reciprocate between the horizontal feeding part, the vertical frame part and the horizontal yarn drum discharging part. The yarn feeding part comprises an annular track arranged at the top of the circular knitting machine body. A plurality of yarn nozzle cars are slidably connected to the annular track. A yarn passing nozzle is arranged on the yarn nozzle car.

[0005] As preferred, the yarn drum driving mechanism comprises a driving chain and a plurality of gears connected head to tail, the driving chain sequentially passes through the horizontal feeding part, the vertical frame part and the horizontal yarn drum discharging part, gears meshing with the driving chain are arranged in the horizontal feeding part, the vertical frame part and the horizontal yarn drum discharging part, a driving motor for driving rotation of any of the gears is arranged on the gear, the upper side of the horizontal feeding part, the lower side of the horizontal yarn drum discharging part and the side of the vertical frame part close to the horizontal feeding part and the horizontal yarn drum discharging part are provided with an open slot matched with the yarn drum rod, the yarn drum rod is fixedly connected with the side of the driving chain after penetrating the open slot, the open slot is arranged in the same direction as the driving chain, a slide rail arranged in parallel with the driving chain is further arranged in the yarn frame body, the slide rail is arranged on the outer ring of the driving chain, a plurality of slide blocks are arranged on the slide rail, and the middle part of the yarn drum rod is rotatably connected with the slide blocks.

[0006] As preferred, the vertical frame part of the yarn frame body is provided with a plurality of automatic air twisting devices, the automatic air twisting devices are arranged beside the open slots and are used for cooperating with two adjacent yarn drum rods in the same open slot, the automatic air twisting device comprises a first twisting arm and a second twisting arm arranged on the upper side and the lower side of the automatic air twisting device respectively and used for cooperating with the yarn drum rods on the upper side and the lower side, the yarn drum rod comprises a front rod and a rear rod, the rear rod is fixedly connected with the driving chain, the front rod is used for placing a yarn drum, a weighing sensor is arranged between the front rod and the rear rod, and the weighing sensor is in control connection with the automatic air twisting device.

[0007] As preferred, the top of the annular track is provided with a plurality of first tooth bodies, the yarn nozzle vehicle comprises a vehicle body transverse plate, a first vertical plate and a second vertical plate vertically arranged on the lower side of the vehicle body transverse plate, the over yarn nozzle is fixedly arranged on the vehicle body transverse plate, a groove body matched with the annular track is arranged between the first vertical plate and the second vertical plate, a driving gear meshing with the first tooth body and a plurality of transmission gears in transmission cooperation with the driving gear are arranged in the groove body, a yarn nozzle motor in transmission cooperation with the transmission gear is arranged on any of the first vertical plate and the second vertical plate, a driver in electrical connection with the yarn nozzle motor is further arranged on the first vertical plate or the second vertical plate, a battery and a control mainboard are arranged in the driver, and a wireless communication module is arranged on the control mainboard.

[0008] As preferred, the outer ring of the annular track is provided with a plurality of yarn nozzle libraries matched with the outer ring and used for accommodating the yarn nozzle car, the yarn nozzle library comprises a sub-track provided on the outer ring of the annular track, the top of the sub-track is provided with a second gear matched with the first gear, and the top of the sub-track is flush with the top of the annular track, the lower side of the sub-track is provided with a horizontally arranged track fixing plate, the track fixing plate is fixedly connected with the side wall of the annular track, a vertical shaft is vertically arranged on the track fixing plate, one end of the sub-track is fixedly connected with the vertical shaft, the lower end of the track fixing plate is provided with a track motor used for driving the vertical shaft to rotate, so that one end of the annular track can be attached to or separated from the outer wall of the annular track, and the top of the annular track is provided with a track opening groove matched with the sub-track.

[0009] As preferred, the cloth inspecting mechanism comprises a photoelectric emitting device and a photoelectric receiving device matched with the photoelectric emitting device, and a gap for passing the fabric is arranged between the photoelectric emitting device and the photoelectric receiving device.

[0010] As preferred, the light emitting width of the photoelectric emitting device is greater than the width of the cloth.

[0011] The knitting circular knitting machine has the advantages that the yarn frame is arranged, the horizontal feeding part, the vertical frame part and the horizontal yarn cylinder discharging part are arranged on the yarn frame, the yarn cylinder rod is arranged on the yarn frame and used for placing the yarn cylinder, the yarn cylinder rod is in an inclined state when the yarn cylinder rod is located in the vertical frame part, the yarn cylinder rod can normally unwind the yarn, the yarn cylinder rod is in a vertical downward state when the yarn cylinder rod is moved to the horizontal yarn cylinder discharging part by the yarn cylinder driving mechanism, the yarn paper cylinder placed on the yarn cylinder rod can automatically fall off under the action of gravity, the yarn cylinder rod is in a vertical upward state when the yarn cylinder rod is moved to the horizontal feeding part by the yarn cylinder driving mechanism, the yarn cylinder rod can conveniently place the new yarn cylinder on the yarn cylinder rod, the yarn winding feeding and discharging are more convenient, the cloth inspecting system is arranged on the winding mechanism, the cloth is inspected while being wound, the machine can be stopped for inspection in time when a defect is found, the cloth inspecting and winding integration of the circular knitting machine is realized, and the operation is very convenient.

[0012] The features and advantages of the present application will be described in detail with reference to the embodiments and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view structural schematic diagram of the knitting circular knitting machine.

[0014] Figure 2 is a front view structural schematic diagram of the yarn frame of the knitting circular knitting machine.

[0015] Figure 3 is a schematic diagram of the front view of the creel of a circular knitting machine according to the present application.

[0016] Figure 4 is a schematic diagram of the side view of the creel of a circular knitting machine according to the present application.

[0017] Figure 5 is a schematic diagram of the top view of the yarn feeding section of a circular knitting machine according to the present application.

[0018] Figure 6 is a schematic diagram of the front view of the yarn feeding section of a circular knitting machine according to the present application.

[0019] Figure 7 is a schematic diagram of the side view of the yarn nozzle carriage of a circular knitting machine according to the present application.

[0020] Figure 8 is a schematic diagram of the cross-sectional view of the cloth inspection system of a circular knitting machine according to the present application.

DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the present application clearer, further detailed description will be given below with the aid of the accompanying drawings and examples. However, it should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.

[0022] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used when the product of the present application is used, and is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited. The meaning of "several" is one or more, unless otherwise explicitly and specifically limited.

[0023] Example 1:

[0024] Reference is made to Figures 1-8The application discloses a circular knitting machine, which comprises a machine body 2 and a creel 1 arranged on both sides of the machine body 2. The machine body 2 is sequentially provided with a yarn feeding part 3, a knitting part 5 and a winding mechanism 4 from top to bottom. The winding mechanism 4 comprises a driving winding roller 41 horizontally arranged on the machine body 2 and a compression roller 42 matched with the driving winding roller 41. The winding mechanism 4 further comprises a cloth inspection system. The creel 1 comprises a horizontal yarn loading part 11 horizontally arranged at the lower end of the creel 1 and a horizontal yarn bobbin discharging part 12 horizontally arranged at the top of the creel 1. A vertical creel part 13 is arranged between the horizontal yarn loading part 11 and the horizontal yarn bobbin discharging part 12. The yarn bobbin rod 15 is movably arranged on the creel 1. A yarn bobbin driving mechanism is arranged in the creel 1 and used for driving the yarn bobbin rod 15 to reciprocally translate between the horizontal yarn loading part 11, the vertical creel part 13 and the horizontal yarn bobbin discharging part 12. The yarn feeding part 3 comprises a ring track 31 arranged at the top of the machine body 2. A plurality of yarn nozzle cars 32 are slidably connected to the ring track 31. A yarn passing nozzle 33 is arranged on the yarn nozzle car 32 and used for allowing the yarn to pass. In the embodiment, the creel 1 is arranged. The horizontal yarn loading part, the vertical creel part and the horizontal yarn bobbin discharging part are arranged on the creel 1. The yarn bobbin driving mechanism is arranged and used for driving the yarn bobbin rod to switch between the horizontal yarn loading part, the vertical creel part and the horizontal yarn bobbin discharging part. The yarn bobbin rod is used for placing the yarn bobbin. When the yarn bobbin rod is located at the vertical creel part, the yarn bobbin rod is in an inclined state and can normally unwind the yarn. When the yarn bobbin rod is driven by the yarn bobbin driving mechanism to move to the horizontal yarn bobbin discharging part, the yarn bobbin rod is in a vertical downward state. The yarn bobbin placed on the yarn bobbin rod can automatically fall off under the action of gravity. When the yarn bobbin rod is driven by the yarn bobbin driving mechanism to move to the horizontal yarn loading part, the yarn bobbin rod is in a vertical upward state. The yarn bobbin rod can conveniently place the new yarn bobbin on the yarn bobbin rod. The yarn bobbin loading and discharging is more convenient. The cloth inspection system is arranged at the winding mechanism 4. The cloth is inspected while being wound. The machine can be stopped for inspection in time when the defect is found. The cloth inspection and winding integration of the circular knitting machine is realized, which is very convenient.

[0025] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4, the yarn cylinder driving mechanism comprises a driving chain 16 and a plurality of gears 19 connected head to tail, the driving chain 16 sequentially passes through the horizontal feeding part 11, the vertical frame part 13 and the horizontal yarn cylinder discharging part 12, the horizontal feeding part 11, the vertical frame part 13 and the horizontal yarn cylinder discharging part 12 are all provided with gears 19 engaged with the driving chain 16, any of the gears 19 is provided with a driving motor for driving the rotation thereof, the upper side of the horizontal feeding part 11, the lower side of the horizontal yarn cylinder discharging part 12 and the side of the vertical frame part 13 close to the horizontal feeding part 11 and the horizontal yarn cylinder discharging part 12 are all provided with an open slot 14 matched with the yarn cylinder rod 15, the yarn cylinder rod 15 is fixedly connected with the side edge of the driving chain 16 after penetrating through the open slot 14, the open slot 14 is arranged in the same direction as the driving chain 16, the yarn rack body 1 is further provided with a slide rail 17 arranged in parallel with the driving chain 16, the slide rail 17 is arranged at the outer ring of the driving chain 16, the slide rail 17 is provided with a plurality of sliding blocks, and the middle part of the yarn cylinder rod 15 is rotatably connected with the sliding blocks.

[0026] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , the vertical frame part 13 of the yarn rack body 1 is provided with a plurality of automatic air twisting devices 18, the automatic air twisting devices 18 are arranged beside the open slot 14 and are used for cooperating with two adjacent yarn cylinder rods 15 in the same open slot 14, the automatic air twisting device 18 comprises a first twisting arm 181 and a second twisting arm 182 arranged at the upper side and the lower side of the automatic air twisting device 18 respectively and used for cooperating with the yarn cylinder rods 15 on the upper side and the lower side, the yarn cylinder rod 15 comprises a front rod 151 and a rear rod 152, the rear rod 152 is fixedly connected with the driving chain 16, the front rod 151 is used for placing a yarn cylinder, a weighing sensor 153 is arranged between the front rod 151 and the rear rod 152, and the weighing sensor 153 is in control connection with the automatic air twisting device 18. The automatic air twisting device 18 can realize automatic twisting, when the yarn on the yarn cylinder rod 15 is about to be used up, the yarn winding head on the yarn cylinder rod 15 and the yarn winding head on the next yarn cylinder rod 15 are twisted together by the automatic air twisting device 18, so that automatic twisting and automatic replenishment of yarn are realized. The automatic air twisting device 18 is prior art, and the air twisting device in the SAVIO automatic winder can be used as the twisting device in the application. The first twisting arm 61 and the second twisting arm 62 are respectively used for grabbing the yarn winding heads on the upper and lower yarn cylinder rods 2 and then twisting them together. The twisting is more convenient.

[0027] Referring to Figure 1 , Figure 5 , Figure 6 and Figure 7The top of the annular track 31 is provided with a plurality of first tooth bodies, the yarn nozzle vehicle 32 comprises a vehicle body transverse plate 321 and a first vertical plate 322 and a second vertical plate 323 vertically arranged on the lower side of the vehicle body transverse plate 321, the yarn passing nozzle 33 is fixedly arranged on the vehicle body transverse plate 321, a groove 324 matched with the annular track 31 is arranged between the first vertical plate 322 and the second vertical plate 323, a driving gear 325 engaged with the first tooth bodies and a plurality of transmission gears 326 transmissionally matched with the driving gear 325 are arranged in the groove 324, a yarn nozzle motor 327 transmissionally matched with the transmission gears 326 is arranged on any one of the first vertical plate 322 and the second vertical plate 323, a driver 328 electrically connected with the yarn nozzle motor 327 is further arranged on the first vertical plate 322 or the second vertical plate 323, a storage battery and a control mainboard are arranged in the driver 328, and a wireless communication module is arranged on the control mainboard. The yarn nozzle motor 327 drives the driving gear 325 to rotate, so as to drive the yarn nozzle vehicle 32 to slide along the top of the annular track 31, the yarn passing nozzle 33 is moved by the yarn nozzle vehicle 32, and various weaving requirements are met. The wireless communication module is arranged, so that the yarn nozzle vehicle 32 can be remotely controlled.

[0028] Referring to Figure 1 、 Figure 5 、 Figure 6 and Figure 7, the outer ring of the annular track 31 is provided with a plurality of yarn nozzle libraries matched with the annular track 31 and used for accommodating the yarn nozzle cars 32, the yarn nozzle library comprises a sub-track 34 provided on the outer ring of the annular track 31, the top of the sub-track 34 is provided with a second gear matched with the first gear, and the top of the sub-track 34 is flush with the top of the annular track 31, the lower side of the sub-track 34 is provided with a horizontally arranged track fixing plate 35, the track fixing plate 35 is fixedly connected with the side wall of the annular track 31, a vertical shaft 36 is vertically arranged on the track fixing plate 35, one end of the sub-track 34 is fixedly connected with the vertical shaft 36, the lower end of the track fixing plate 35 is provided with a track motor 37 used for driving the vertical shaft 36 to rotate so that one end of the annular track 31 can be attached to or separated from the outer wall of the annular track 31, and the top of the annular track 31 is provided with a track opening slot 311 matched with the sub-track 34; when one end of the sub-track 34 is attached to the outer wall of the annular track 31, the first vertical plate 322 or the second vertical plate 323 can pass through the track opening slot 311. The sub-track 34 is arranged to match with the annular track 31, to accommodate and store the yarn nozzle cars 32 and the passing yarn nozzle 33 which are not needed to be used, when the passing yarn nozzle 33 needs to be used, the track motor 37 of the yarn nozzle library is controlled to rotate, so that the end of the sub-track 34 is attached to the annular track 31, the yarn nozzle car 32 moves along the sub-track 34 until it moves onto the annular track 31, one side of the yarn nozzle car 32 passes through the track opening slot 311, then the track motor 37 is reversed, the sub-track 34 is separated from the annular track 31, and the yarn nozzle car 32 can normally move along the annular track 31, the track opening slot 311 does not affect the normal movement of the yarn nozzle car 32 when the yarn nozzle car 32 moves along the annular track 31, when the passing yarn nozzle 33 needs to be separated from the annular track 31, the track motor 37 of the yarn nozzle library is controlled to rotate again, so that the end of the sub-track 34 is attached to the annular track 31, the yarn nozzle car 32 moves along the annular track 31 to the position where the sub-track 34 is attached to the annular track 31, and can move onto the sub-track 34, then the track motor 37 is reversed, the sub-track 34 is separated from the annular track 31, and the yarn nozzle car 32 can be accommodated in the sub-track 34 and does not participate in knitting.

[0029] Referring to Figure 1 、 Figure 8The cloth inspecting mechanism comprises photoelectric emitting device 43 and photoelectric receiving device 44 matched with the photoelectric emitting device 43, and a gap for the fabric to pass through is arranged between the photoelectric emitting device 43 and the photoelectric receiving device 44. The photoelectric emitting device emits light rays towards the direction of the fabric, part of the light rays successfully penetrate the fabric and are received by the photoelectric receiving device, the photoelectric receiving device outputs the number of received light rays to the controller, and the controller compares the number with a normal value, if there is a hole on the fabric, the number of light rays received by the photoelectric receiving device will be greater than the value, the controller controls the circular knitting machine to stop and check; if there is a stain on the fabric, the number of light rays received by the photoelectric receiving device will be less than the value, the controller controls the circular knitting machine to stop and check.

[0030] Preferably, the light emitting width of the photoelectric emitting device 4 is greater than the width of the fabric.

[0031] The working process of the present application is as follows:

[0032] In the working process of the present application, the creel 1 is used for placing the yarn roll, the yarn passes through the yarn feeding part 3 and the knitting part 5 in sequence, the knitting is carried out through the knitting part 5, the finished fabric is wound through the driving winding roller 41 of the winding mechanism 4, and the cloth inspecting mechanism detects the fabric, if there is a stain on the fabric, the controller can control the circular knitting machine to stop and check.

[0033] The above embodiments are illustrative of the present application, but not limiting of the present application, and any simple transformation of the present application also belongs to the protection scope of the present application.

Claims

1. A circular knitting machine, comprising a machine body (2) and creels (1) arranged on both sides of the machine body (2), the machine body (2) being sequentially provided with a yarn feeding part (3), a knitting part (5) and a winding mechanism (4) from top to bottom, characterized in that: The winding mechanism (4) comprises a driving winding roller (41) transversely arranged on the main body (2) and a pressure roller (42) matched with the driving winding roller (41), and further comprises a cloth inspection system, a plurality of yarn drum rods (15) on the creel (1), the creel (1) comprises a horizontal feeding part (11) transversely arranged at the lower end of the creel (1) and a horizontal yarn drum discharging part (12) transversely arranged at the top of the creel (1), a vertical creel part (13) is arranged vertically between the horizontal feeding part (11) and the horizontal yarn drum discharging part (12), the yarn drum rod (15) is movably arranged on the creel (1), and a yarn drum driving mechanism is arranged in the creel (1) for driving the yarn drum rod (15) to reciprocate between the horizontal feeding part (11), the vertical creel part (13) and the horizontal yarn drum discharging part (12), the yarn feeding part (3) comprises a ring track (31) arranged at the top of the main body (2), a plurality of yarn nozzle cars (32) are slidably connected to the ring track (31), and a yarn passing nozzle (33) is arranged on the yarn nozzle car (32); the yarn drum driving mechanism comprises a driving chain (16) connected at the head and tail and a plurality of gears (19), the driving chain (16) sequentially passes through the inside of the horizontal feeding part (11), the vertical creel part (13) and the horizontal yarn drum discharging part (12), gears (19) are arranged in the horizontal feeding part (11), the vertical creel part (13) and the horizontal yarn drum discharging part (12) and engaged with the driving chain (16), a driving motor is arranged on any gear (19) for driving the rotation thereof, the upper side of the horizontal feeding part (11), the lower side of the horizontal yarn drum discharging part (12) and one side of the vertical creel part (13) close to the horizontal feeding part (11) and the horizontal yarn drum discharging part (12) are provided with an open slot (14) matched with the yarn drum rod (15), the yarn drum rod (15) is fixedly connected to the side edge of the driving chain (16) after penetrating through the open slot (14), the open slot (14) and the driving chain (16) are arranged in the same direction, the creel (1) further comprises a slide rail (17) arranged in parallel with the driving chain (16), the slide rail (17) is arranged on the outer ring of the driving chain (16), a plurality of sliding blocks are arranged on the slide rail (17), and the middle part of the yarn drum rod (15) is rotatably connected with the sliding blocks.The annular track (31) is provided with a plurality of first tooth bodies at the top, the yarn nozzle vehicle (32) comprises a vehicle body transverse plate (321), a first vertical plate (322) and a second vertical plate (323) vertically arranged at the lower side of the vehicle body transverse plate (321), the yarn passing nozzle (33) is fixedly arranged on the vehicle body transverse plate (321), a groove (324) matched with the annular track (31) is arranged between the first vertical plate (322) and the second vertical plate (323), a driving gear (325) engaged with the first tooth body and a plurality of transmission gears (326) transmissionally matched with the driving gear (325) are arranged in the groove (324), a yarn nozzle motor (327) transmissionally matched with the transmission gear (326) is arranged on any one of the first vertical plate (322) and the second vertical plate (323), a driver (328) electrically connected with the yarn nozzle motor (327) is further arranged on the first vertical plate (322) or the second vertical plate (323), a storage battery and a control mainboard are arranged in the driver (328), and a wireless communication module is arranged on the control mainboard; the cloth inspection system comprises a photoelectric emission device (43) and a photoelectric receiving device (44) matched with the photoelectric emission device (43), and a gap for the fabric to pass through is arranged between the photoelectric emission device (43) and the photoelectric receiving device (44).

2. A machine as claimed in claim 1, characterized in that: The vertical frame part (13) of the creel (1) is provided with a plurality of automatic air twist connectors (18), which are arranged beside the opening groove (14) and used in cooperation with two adjacent yarn drum rods (15) in the same opening groove (14). The automatic air twist connector (18) comprises a first twist arm (181) and a second twist arm (182) arranged on the upper and lower sides of the automatic air twist connector (18) respectively and used in cooperation with the yarn drum rods (15) on the upper and lower sides. The yarn drum rod (15) comprises a front rod (151) and a rear rod (152). The rear rod (152) is fixedly connected with the driving chain (16). The front rod (151) is used for placing a yarn drum. A weighing sensor (153) is arranged between the front rod (151) and the rear rod (152). The weighing sensor (153) is in control connection with the automatic air twist connector (18).

3. A machine according to claim 1, characterized in that: The outer ring of the annular track (31) is provided with a plurality of yarn nozzle libraries matched with the annular track (31) and used for accommodating the yarn nozzle car (32). The yarn nozzle library comprises a sub-track (34) arranged on the outer ring of the annular track (31). The top of the sub-track (34) is provided with a second gear body matched with the first gear body. The top of the sub-track (34) is flush with the top of the annular track (31). The lower side of the sub-track (34) is provided with a horizontally arranged track fixing plate (35). The track fixing plate (35) is fixedly connected with the side wall of the annular track (31). A vertical shaft (36) is vertically arranged on the track fixing plate (35). One end of the sub-track (34) is fixedly connected with the vertical shaft (36). The lower end of the track fixing plate (35) is provided with a track motor (37) used for driving the vertical shaft (36) to rotate, so that one end of the annular track (31) can be attached to or separated from the outer wall of the annular track (31). The top of the annular track (31) is provided with a track opening groove (311) matched with the sub-track (34) near the sub-track (34). When one end of the sub-track (34) is attached to the outer wall of the annular track (31), the first vertical plate (322) or the second vertical plate (323) can pass through the track opening groove (311).

4. A machine according to claim 1, characterized in that: The light-emitting width of the photoelectric emission device is greater than the width of the cloth.

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