CN113215692B

CN113215692B - Air spinning machine

Info

Publication number: CN113215692B
Application number: CN202110028698.8A
Authority: CN
Inventors: 泽田晴稔; 重山昌澄
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 2020-01-21
Filing date: 2021-01-11
Publication date: 2024-03-05
Anticipated expiration: 2041-01-11
Also published as: JP2021113378A; CN113215692A

Abstract

An air spinning machine is provided with a plurality of spinning units, a delivery pipe (108), an inlet pipe (104), a plurality of branching pipes (106), and a plurality of mist eliminators (air cleaning filters) (132). The plurality of spinning units produce yarn using the twist air stream. In the delivery pipe (108), compressed air supplied from one end side flows from the other end side toward the plurality of spinning units. The inlet pipe (104) is connected to an air pressure feeding device for supplying compressed air to the plurality of spinning units, and compressed air is supplied from one end side by the air pressure feeding device. The plurality of branch pipes (106) are branched from the other end side of the inlet pipe (104) and then connected to one end side of the delivery pipe (108). The plurality of demisters (132) are respectively arranged on the plurality of branch pipes (106).

Description

Air spinning machine

Technical Field

The present invention relates to an air spinning machine.

Background

Conventionally, a spinning machine (air spinning machine) is known in which a twisted air stream is formed by compressed air and a yarn is produced by using the twisted air stream. Such a spinning machine is disclosed in Japanese patent application laid-open No. 2018-076607.

The spinning machine of japanese patent application laid-open publication No. 2018-076607 includes: spinning unit having an air spinning device, and air piping. The air pipe guides air sent from the air sending device through the air supply pipe to the air spinning device.

In a spinning machine such as in japanese patent application laid-open No. 2018-076607, mist in air is usually removed before the air is supplied to an air flow spinning device. Specifically, an air purifying filter such as a demister is provided for the air supply pipe. However, the pressure loss in the air cleaning filter is large in the air pressure feed. In addition, it is considered that this can be improved by enlarging the air cleaner, but there is a limit in the enlargement of the air cleaner.

Disclosure of Invention

The invention aims to provide an air spinning machine which can reduce pressure loss caused by an air purifying filter without enlarging an air purifying filter monomer.

The air spinning machine of the present invention comprises a plurality of spinning units, a 1 st pipe, a 2 nd pipe, a plurality of 3 rd pipes, and a plurality of compressed air purifying filters. A plurality of the spinning units generates yarn by using the twist air flow. The 1 st pipe flows the compressed air supplied from one end side toward the plurality of spinning units from the other end side. The 2 nd pipe is connected to a compressed air supply source for supplying compressed air to the plurality of spinning units, and the compressed air is supplied from one end side by the compressed air supply source. The 3 rd piping is branched from the other end of the 2 nd piping and then connected to one end of the 1 st piping. The plurality of compressed air purifying filters are provided in the plurality of 3 rd pipes, respectively.

Accordingly, when compressed air is supplied to the plurality of spinning units, the pressure loss due to the air cleaning filter can be reduced without increasing the size of the air cleaning filter unit. Further, the progress of the decrease in the capacity (mesh clogging) of each of the plurality of air cleaning filters can be delayed, and the replacement cycle of each air cleaning filter can be prolonged.

In the above air spinning machine, it is preferable that the capacity of each of the plurality of compressed air purifying filters is 2 times or less the total supply flow rate of the compressed air supplied from the compressed air supply source.

Thus, each air cleaning filter can be used appropriately.

In the above air spinning machine, it is preferable that the capacity of each of the plurality of compressed air purifying filters is 1000L/min to 20000L/min.

This enables each air cleaning filter to function well.

The above-mentioned air spinning machine is preferably provided with a 1 st pressure sensor and a 2 nd pressure sensor. The 1 st pressure sensor detects the pressure in the 1 st pipe. The 2 nd pressure sensor detects the pressure in the 2 nd pipe.

Accordingly, the amount of deposited removed material with respect to the air cleaning filter can be estimated based on the detection values of the 1 st pressure sensor and the 2 nd pressure sensor. Thus, the overall performance (degree of clogging) of the air cleaning filter at the present time can be managed.

In the above air spinning machine, it is preferable that the compressed air purifying filters are demisters.

This can efficiently remove mist in the air.

In the above air spinning machine, it is preferable that the plurality of compressed air purifying filters include a 1 st compressed air purifying filter and a 2 nd compressed air purifying filter which are disposed adjacent to each other. The 1 st compressed air purification filter and the 2 nd compressed air purification filter are arranged along an imaginary horizontal plane. The 1 st compressed air purifying filter is disposed at a position in the middle of a straight line portion parallel to the virtual horizontal plane, the straight line portion being provided in the 3 rd pipe. The 1 st compressed air purification filter is disposed so as to overlap with the 2 nd compressed air purification filter when viewed along the straight line portion.

Thus, space saving can be achieved with respect to the installation of the plurality of compressed air purification filters.

The above-mentioned air spinning machine preferably includes a drive source and a housing portion. The driving source drives the driving member of the spinning unit. The storage unit stores the driving source. The compressed air purifying filters are accommodated in the accommodating portion.

This enables efficient arrangement of a plurality of compressed air purification filters.

In the above air spinning machine, it is preferable that the plurality of compressed air purifying filters are members of the same type as each other.

This can make maintenance work common, and thus can improve workability.

In the above air spinning machine, the number of the spinning units is preferably 48 or more.

This makes it possible to supply the compressed air to the plurality of spinning units satisfactorily via the compressed air purifying filter.

In the above air spinning machine, the number of the plurality of compressed air purifying filters is preferably 2 to 4.

This makes it possible to apply the compressed air purifying filter to the rotor spinning machine efficiently.

The above-mentioned air spinning machine preferably includes a plurality of opening and closing members. The opening/closing member changes an opening/closing state of a portion of each of the 3 rd pipes upstream of the compressed air purification filter.

Accordingly, even when the upstream side of the compressed air purifying filter is changed to the closed state in at least 1 of the 3 rd pipes among the plurality of 3 rd pipes and maintenance of the compressed air purifying filter is performed, the upstream side of the compressed air purifying filter in the remaining 3 rd pipes can be opened, and compressed air can be supplied to the spinning unit, and spinning by the spinning unit can be performed. Thus, the operation efficiency of the spinning unit can be improved.

In the above-described air spinning machine, the spinning unit preferably includes an air spinning device. The air spinning device includes a fiber guiding portion, a nozzle body, and a hollow guiding shaft body. The fiber guide portion guides the fiber bundle. The nozzle body forms a spinning chamber into which the fiber bundle guided by the fiber guiding part is introduced, and forms a nozzle through which the compressed air injected to generate a twist air flow in the spinning chamber passes. The hollow guide shaft guides the fiber bundle passing through the spinning chamber to the outside.

In this way, the spun yarn is produced by twisting the fiber bundle in the spinning chamber by the air flow of the twist air generated by the compressed air passing through the plurality of compressed air purifying filters, and the quality of the produced spun yarn can be improved.

Drawings

Fig. 1 is a front view showing the overall structure of an air-jet spinning machine according to embodiment 1 of the present invention.

Fig. 2 is a side view of the spinning unit and the piecing trolley.

Fig. 3 is a side sectional view showing the structure of the air spinning device and its periphery.

Fig. 4 is a diagram showing the structure of the compressed air supply unit.

FIG. 5 is a perspective view of a plurality of mist eliminators.

FIG. 6 is a side view of a plurality of mist eliminators.

Fig. 7 is a perspective view showing a state in which a plurality of mist eliminators are disposed.

Fig. 8 is a diagram showing a partial structure of a compressed air supply unit according to embodiment 2 of the present invention.

Fig. 9 is a diagram showing a partial structure of a compressed air supply unit in embodiment 3 of the present invention.

Detailed Description

Next, an air-jet spinning machine 1 according to embodiment 1 of the present invention will be described with reference to fig. 1 and 2.

As shown in fig. 1, the air-jet spinning machine 1 includes an air box 3, a power box 5, a plurality of spinning units 7, and a piecing carriage (work carriage) 9. The plurality of spinning units 7 are arranged in a predetermined direction.

A blower 11 functioning as a negative pressure source, etc. are disposed in the blower box 3.

A drive source, a central control device 13, a display unit 15, and an operation unit 17, which are not shown, are disposed in the power box 5.

The central control device 13 centrally manages and controls each part of the air-jet spinning machine 1. As shown in fig. 2, the central control device 13 is connected to a unit control unit 19 provided in each spinning unit 7 via a signal line, not shown. In the present embodiment, each spinning unit 7 includes the unit control unit 19, but a predetermined number (for example, 2 or 4) of spinning units 7 may share one unit control unit 19.

The display unit 15 can display information and the like related to the setting content for the spinning units 7 and/or the state of each spinning unit 7. The operator can set the spinning unit 7 by operating the operation unit 17.

As shown in fig. 2, each spinning unit 7 mainly includes a draft device 21, an air-jet spinning device 23, a yarn accumulating device 25, and a winding device 27, which are disposed in this order from upstream to downstream. Here, "upstream" and "downstream" mean upstream and downstream in the traveling direction of the sliver 32, the fiber bundle 34, and the spun yarn 30 when the spun yarn (yarn) 30 is wound.

The draft device 21 is provided near the upper end of the frame 36 provided in the rotor spinning machine 1. The draft device 21 includes 4 draft roller pairs. The 4 draft roller pairs are a rear roller pair 41, a third roller pair 43, an intermediate roller pair 45, and a front roller pair 47, which are arranged in this order from the upstream side toward the downstream side. A belt 49 is provided for each roller of the intermediate roller pair 45.

The draft device 21 stretches (drafts) the sliver 32 supplied from a sliver can, not shown, to a predetermined fiber amount (or thickness) by sandwiching the sliver between rollers of each draft roller pair and transporting the sliver, thereby producing a fiber bundle 34. The fiber bundle 34 generated by the draft device 21 is supplied to the air spinning device 23.

The air-jet spinning device 23 generates spun yarn 30 by twisting the fiber bundle 34 drawn by the drawing device 21 with a twist air flow. Specifically, as shown in fig. 3, the air-jet spinning device 23 includes a 1 st holder 51 and a 2 nd holder 52. The 1 st holder 51 has a fiber guide 53 and a nozzle body 54. The 2 nd bracket 52 has a hollow guide shaft body 55.

The fiber guide 53 guides the fiber bundle 34 drawn by the drawing device 21 into the air-jet spinning device 23. The fiber guide 53 is provided with a fiber inlet 56 and a yarn guide 57. The fiber bundle 34 drawn by the drawing device 21 is guided into the fiber guiding section 53 from the fiber inlet 56, wound around the yarn guide needle 57, and guided into the spinning chamber 59.

A plurality of nozzles 58 are formed in the nozzle body 54. The nozzle body 54 forms a spinning chamber 59 together with the fiber guide 53 and the hollow guide shaft body 55. The air-jet spinning device 23 ejects compressed air (air) supplied from a unit pipe 114 described later into the spinning chamber 59 from the nozzle 58, and applies a whirling air flow to the fiber bundle 34 in the spinning chamber 59. The yarn guide 57 may be omitted, and the downstream end of the fiber guide 53 may be provided with the function of the yarn guide 57.

A yarn passage 60 is formed in the axial center of the hollow guide shaft body 55. By the compressed air injected from the nozzle 58, one end of the fiber bundle 34 is waved around the front end of the hollow guide shaft body 55. The fiber bundle 34 is then guided as the spun yarn 30 to the outside of the air-jet spinning device 23 from a yarn outlet, not shown, on the downstream side through the yarn passage 60.

The yarn accumulating device 25 pulls out the spun yarn 30 generated by the rotor spinning device 23. The yarn accumulating device 25 includes a yarn accumulating roller 62 and a motor 63.

The yarn accumulating roller 62 is rotationally driven by a motor 63. The yarn accumulating roller 62 temporarily accumulates the spun yarn 30 around its outer peripheral surface. The yarn accumulating roller 62 rotates at a predetermined rotational speed in a state where the spun yarn 30 is wound around the outer peripheral surface, and thereby pulls out the spun yarn 30 from the air-jet spinning device 23 at a predetermined speed.

In this way, the yarn accumulating device 25 can temporarily accumulate the spun yarn 30 on the outer peripheral surface of the yarn accumulating roller 62, and thus functions as a buffer for the spun yarn 30. This can eliminate defects (e.g., slackening of the spun yarn 30) caused by the fact that the spinning speed and the winding speed (the traveling speed of the spun yarn 30 wound around the package 73 described later) in the air-jet spinning device 23 are not uniform for some reasons.

A yarn monitoring device 65 is provided between the air-jet spinning device 23 and the yarn accumulating device 25. The spun yarn 30 produced by the air-jet spinning device 23 passes through the yarn monitoring device 65 before being accumulated by the yarn accumulating device 25.

The yarn monitoring device 65 monitors the quality (thickness, etc.) of the traveling spun yarn 30 by a light-transmitting sensor, and detects yarn defects (portions where the thickness of the spun yarn 30 is abnormal, foreign matters, etc.) included in the spun yarn 30. When detecting a yarn defect of the spun yarn 30, the yarn monitoring device 65 transmits a yarn defect detection signal to the unit control section 19. The yarn monitoring device 65 is not limited to a light-transmitting type sensor, and for example, a light-reflecting type sensor or a capacitance type sensor may be used to monitor the quality of the spun yarn 30.

Upon receiving the yarn defect detection signal from the yarn monitoring device 65, the unit control section 19 stops driving of the air-jet spinning device 23 and/or the draft device 21, thereby cutting the spun yarn 30. That is, the air-jet spinning device 23 has a function as a cutting section for cutting the spun yarn 30 when the yarn monitoring device 65 detects a yarn defect. The spun yarn 30 may be cut by a cutter.

The winding device 27 includes a rocker arm 67, a winding drum 68, and a traverse guide 69. The rocker arm 67 is supported swingably about the support shaft 70, and rotatably supports a bobbin 71 (i.e., a package 73) for winding the spun yarn 30. The winding drum 68 rotates in contact with the outer peripheral surface of the bobbin 71 or the package 73, thereby rotationally driving the package 73 in the winding direction. The winding device 27 reciprocates the traverse guide 69 by a drive motor (drive source) 166 described later, and drives the winding drum 68 by an electric motor (not shown). Thereby, the winding device 27 winds the spun yarn 30 around the package 73 while traversing the spun yarn 30.

As shown in fig. 1, a rail 81 is arranged along the direction in which the plurality of spinning units 7 are arranged in the frame 36 of the air-jet spinning machine 1. The joint carriage 9 is configured to be capable of traveling on a rail 81. Thereby, the yarn joining trolley 9 can move with respect to the plurality of spinning units 7. The yarn joining carriage 9 travels to the spinning unit 7 where yarn breakage occurs, and performs yarn joining work for the spinning unit 7.

The joint carriage 9 includes traveling wheels 83. As also shown in fig. 2, the yarn joining carriage 9 further includes a yarn joining device 85, a yarn catching portion (a suction pipe 87 and a suction nozzle 89), and a carriage control portion 91.

The suction pipe 87 can suck and catch the spun yarn 30 sent out from the air-jet spinning device 23 by generating a suction air flow at the tip end thereof. The suction nozzle 89 generates a suction air flow at the tip end thereof, thereby sucking and capturing the spun yarn 30 from the package 73 supported by the winding device 27. The suction pipe 87 and the suction nozzle 89 rotate in a state of capturing the spun yarn 30, and thereby guide the spun yarn 30 to a position where the spun yarn can be introduced into the yarn splicing device 85.

The yarn joining device 85 joins the spun yarn 30 from the air-jet spinning device 23 guided by the suction pipe 87 and the spun yarn 30 from the package 73 guided by the suction nozzle 89. In the present embodiment, the yarn joining device 85 is a splicer device for twisting yarn ends to each other by twisting air flow. The connector device 85 is not limited to the above-described splicer device, and for example, a mechanical knotter or the like may be used. The yarn splicing carriage 9 may be configured to splice the spun yarn 30 without the yarn splicing device 85. That is, the yarn 30 from the package 73 may be pulled out and reversely fed to the air-jet spinning device 23, and then the drafting operation of the drafting device 21 and the spinning operation of the air-jet spinning device 23 may be started, whereby the spun yarn 30 may be put into a continuous state again.

The carriage control unit 91 is configured to have a known computer such as CPU, ROM, RAM, which is not shown. The carriage control unit 91 controls the operation of the joint carriage 9 by controlling the operations of the respective units included in the joint carriage 9.

Next, a structure for supplying compressed air to each spinning unit 7 in the air-jet spinning machine 1 will be described with reference to fig. 4.

As shown in fig. 4, the air-jet spinning machine 1 includes a compressed air supply unit 100. The compressed air supply unit 100 includes an inlet pipe (2 nd pipe) 104, a plurality of branch pipes (3 rd pipe) 106, a delivery pipe (1 st pipe) 108, a spinning pipe 112, and a unit pipe 114.

The inlet pipe 104 is connected to an air pressure feed device (compressed air supply source) 118 at one end side. The inlet pipe 104 is configured to circulate the compressed air sent from the air pressure sending device 118, and the compressed air flows from the other end side toward the plurality of branch pipes 106.

The air pressure feeding device 118 is provided at a predetermined place (factory or the like) where the air-jet spinning machine 1 is installed. The air pressure-feed device 118 is, for example, an electric compressor that is driven by an electric motor to pressurize air and feed the air.

The plurality of branch pipes 106 are connected to the other end side of the inlet pipe 104 at one end side thereof. A plurality of branch pipes 106 branch from the other end side of the inlet pipe 104. The plurality of branch pipes 106 are arranged in parallel with each other. The plurality of branch pipes 106 are respectively supplied with a part of the compressed air from the inlet pipe 104, and the compressed air flows from the other end side to the delivery pipe 108.

The delivery pipe 108 is connected to the other end side of each of the plurality of branch pipes 106 at one end side as described above. The delivery pipe 108 merges the other end sides of the plurality of branch pipes 106. The delivery pipe 108 is configured to collect and circulate the compressed air from the plurality of branch pipes 106. The compressed air flows from the other end side of the delivery pipe 108 toward the spinning pipe 112.

The spinning pipe 112 is connected to the other end side of the delivery pipe 108. Compressed air from the delivery pipe 108 flows through the spinning pipe 112. The spinning pipe 112 extends in the direction in which the spinning units 7 are arranged.

The unit pipe 114 is connected to the spinning pipe 112. The compressed air from the spinning pipe 112 flows toward the spinning unit 7 through each unit pipe 114. The unit piping 114 is provided in the same number as the spinning units 7, and 1 unit pipe is provided for each spinning unit 7. The unit piping 114 corresponding to each spinning unit 7 is connected to the spinning piping 112 at one end side and to the air-jet spinning device 23 of the spinning unit 7 at the other end side.

A carriage supply pipe 120 is connected to the delivery pipe 108. The carriage supply pipe 120 branches from the delivery pipe 108. The carriage supply pipe 120 is configured to be connectable to the joint carriage 9. Thus, a part of the compressed air sent from the air pressure sending device 118 flows toward the joint carriage 9 through the sending pipe 108 and the carriage supply pipe 120. The compressed air supplied from the carriage supply pipe 120 to the joint carriage 9 is used for the joint in the joint device 85, for example.

The compressed air supply unit 100 includes a regulator 124. The regulator 124 is provided in the delivery pipe 108 downstream of the connection point of the carriage supply pipe 120. The regulator 124 can regulate the pressure (spinning pressure) of the compressed air supplied from the delivery pipe 108 to each spinning unit 7. The compressed air whose pressure has been adjusted by the regulator 124 is supplied from the delivery pipe 108 to the spinning unit 7 via the spinning pipe 112 and the unit pipe 114.

The compressed air supply unit 100 includes a filter unit 130. The filter unit 130 is provided in the plurality of branch pipes 106. The filter unit 130 includes a plurality of mist eliminators (compressed air purifying filters) 132. The demisters 132 are provided 1 for each branch pipe 106. The mist eliminator 132 separates particulate matter in the passing compressed air from the compressed air. This allows clean compressed air from which particulate matter has been removed to be supplied to the regulator 124 and further to the spinning unit 7.

A supply valve 142 is provided on the upstream side of the filter portion 130 in the direction in which the compressed air flows. The supply valve 142 changes the open/closed state of the inlet pipe 104. The supply valve 142 is opened and closed by an operator. The operator opens the supply valve 142 during the operation of the rotor spinning machine 1. The opening and closing of the supply valve 142 may be controlled by the central control device 13.

Next, the filter unit 130 will be described with reference to fig. 4, 5, 6, and 7.

The filter unit 130 is applied to the plurality of branch pipes 106, and has a plurality of demisters 132. The plurality of mist eliminators 132 are provided in the same number as the plurality of branch pipes 106. As described above, 1 demister 132 is provided for each branch pipe 106. In the present embodiment, the number of the plurality of branch pipes 106 is 2. In response, the number of the plurality of demisters 132 is also 2.

Specifically, as shown in fig. 4, 2 branch pipes 106 each including a 1 st branch pipe 106A and a 2 nd branch pipe 106B are provided as the plurality of branch pipes 106. Therefore, the plurality of mist eliminators 132 are 2 of the 1 st mist eliminator (1 st compressed air purification filter) 132A and the 2 nd mist eliminator (2 nd compressed air purification filter) 132B.

The cross-sectional area of the air flow path formed in the branching pipe 106 is substantially the same or the same in all of the branching pipes 106. The distance between the air flow paths from the connection point with the inlet pipe 104 to the connection point with the delivery pipe 108 in the branching pipe 106 is also substantially the same or the same in all of the branching pipes 106. The number of the plurality of branch pipes 106 and the number of the plurality of demisters 132 can be arbitrarily selected.

The 1 st mist eliminator 132A is provided in the 1 st branch pipe 106A. Specifically, the 1 st branch pipe 106A has 2 curved portions, and a straight portion of an appropriate length is formed between the 2 curved portions. The 1 st demister 132A is disposed at one position in the middle of the straight portion. The 1 st mist eliminator 132A removes particulate matter from compressed air flowing through the air flow path formed in the 1 st branch pipe 106A. The 2 nd demister 132B is provided in the 2 nd branch pipe 106B. Specifically, the 2 nd branch pipe 106B has a bent portion, and a straight portion having an appropriate length is formed between the bent portion and a portion of the 2 nd branch pipe 106B connected to the 1 st branch pipe 106A. The 2 nd demister 132B is disposed at one position midway of the straight portion. The 2 nd demister 132B removes particulate matter from compressed air flowing through the air flow path formed in the 2 nd branch pipe 106B. The straight line portion of the 1 st branch pipe 106A in which the 1 st mist eliminator 132A is disposed and the straight line portion of the 2 nd branch pipe 106B in which the 2 nd mist eliminator 132B is disposed are parallel to each other.

The capacity of each of the 1 st demister 132A and the 2 nd demister 132B is 2 times or less the total supply flow rate of the compressed air supplied from the air pressure feed device 118. In the present embodiment, the capacity of each of the 1 st demister 132A and the 2 nd demister 132B is 1000L/min to 20000L/min. This capacity can be selected to be an arbitrary value according to the total supply flow rate of the compressed air. In the present embodiment, the 1 st demister 132A and the 2 nd demister 132B have the same capacity, but may have different capacities.

In the present embodiment, the 1 st mist eliminator 132A and the 2 nd mist eliminator 132B are both micro mist separators. In the present embodiment, the 1 st mist eliminator 132A and the 2 nd mist eliminator 132B are members of the same type as each other, considering that the micro mist separators are of the same type as each other, the oil mist separators are of the same type as each other, and the micro mist separators are of different types from the oil mist separators. In general, the maintenance work required for the mist separator is different from that required for the oil mist separator, but according to the present embodiment, the same maintenance work can be performed for the 2 mist separators 132.

As shown in fig. 5, the 1 st demister 132A and the 2 nd demister 132B are each provided to extend in one direction (up-down direction) and have a predetermined width in a direction perpendicular to the up-down direction. The 1 st demister 132A and the 2 nd demister 132B are arranged at predetermined intervals on an imaginary horizontal plane extending substantially perpendicularly to the vertical direction.

The 1 st demister 132A and the 2 nd demister 132B adjacent thereto are arranged on substantially the same virtual horizontal plane. When viewed in the direction of the straight portion of the 1 st branch pipe 106A in which the 1 st mist eliminator 132A is disposed (the direction of the arrow 152 in fig. 5), the 1 st mist eliminator 132A is disposed so as to overlap with the 2 nd mist eliminator 132B as shown in fig. 6. That is, the 1 st demister 132A and the 2 nd demister 132B are arranged in a staggered manner.

The 1 st mist eliminator 132A and the 2 nd mist eliminator 132B are stored in the storage section 160 of the air-jet spinning machine 1 in such an arrangement. Specifically, the air-jet spinning machine 1 includes a housing 160 as shown in fig. 7. The housing 160 is formed in a hollow box shape by appropriately combining and fixing a plurality of elongated frame members. The housing portion 160 includes a plate-like member attached to the frame member, and the display portion 15 and the operation portion 17 are provided to the plate-like member.

In the internal space 162 of the housing 160, a drive motor (drive source) 166 for driving the traverse guide 69 (drive member of the spinning unit 7) of the winding device 27 is housed in addition to the 1 st mist eliminator 132A and the 2 nd mist eliminator 132B. The 1 st demister 132A and the 2 nd demister 132B are disposed below the internal space 162 of the storage portion 160. The driving motor 166 is also disposed below the internal space 162 of the housing 160. In the present embodiment, the drive motor 166 is disposed on the lower side and the front side of the internal space 162, and the demister 132 is disposed on the lower side and the rear side of the internal space 162. Other members may be disposed below the inner space 162. The driving sources of the front roller pair 47 and the intermediate roller pair 45 and the central control device 13 are accommodated in the upper side of the internal space 162, for example.

In the present embodiment, the 1 st branch pipe 106A and the 2 nd branch pipe 106B, in which the 1 st demister 132A and the 2 nd demister 132B are provided, are housed in the internal space 162 of the housing portion 160. The 1 st mist eliminator 132A, the 2 nd mist eliminator 132B, the 1 st branch pipe 106A, and/or the 2 nd branch pipe 106B are appropriately supported by the frame member of the housing portion 160.

With this configuration, when compressed air is supplied from the air pressure feeder 118 to the inlet pipe 104, the compressed air branches from the inlet pipe 104 to the plurality of branch pipes 106, that is, the 1 st branch pipe 106A and the 2 nd branch pipe 106B. A part of the compressed air flowing through the 1 st branch pipe 106A passes through the 1 st mist eliminator 132A and flows through the delivery pipe 108. A part of the compressed air flowing through the 2 nd branch pipe 106B passes through the 2 nd demister 132B and flows through the delivery pipe 108.

During the flow of the compressed air through the 1 st branch pipe 106A and the 2 nd branch pipe 106B, the 1 st mist eliminator 132A and the 2 nd mist eliminator 132B remove the particulate matters in the compressed air, respectively, and at least a part of the compressed air is purified. When the compressed air flowing through each branch pipe 106 reaches the delivery pipe 108, the compressed air merges at one end side of the delivery pipe 108. The compressed air flows from the delivery pipe 108 to the spinning pipe 112.

As described above, the air-jet spinning machine 1 of the present embodiment includes the plurality of spinning units 7, the delivery pipe 108, the inlet pipe 104, the plurality of branching pipes 106, and the plurality of mist eliminators 132 (1 st mist eliminators 132A and 2 nd mist eliminators 132B). The plurality of spinning units 7 generates yarn using the twist air flow. The delivery pipe 108 is configured to flow the compressed air supplied from one end side from the other end side toward the plurality of spinning units 7. The inlet pipe 104 is connected to an air pressure feeder 118 for supplying compressed air to the plurality of spinning units 7, and the compressed air is supplied from one end side by the air pressure feeder 118. The plurality of branch pipes 106 branch from the other end side of the inlet pipe 104 and are connected to one end side of the delivery pipe 108. The plurality of demisters 132 are provided in the plurality of branch pipes 106, respectively.

Accordingly, when compressed air is supplied to the plurality of spinning units 7, the pressure loss due to the mist eliminators 132 can be reduced without increasing the size of the mist eliminators 132 alone. In other words, energy saving of the air spinning machine 1 can be achieved. Further, the progress of the decrease in the capacity (mesh clogging) of each of the plurality of mist eliminators 132 can be delayed, and the replacement cycle of each of the mist eliminators 132 can be prolonged.

In the air-jet spinning machine 1 of the present embodiment, the capacity of each of the plurality of mist eliminators 132 is 2 times or less the total supply flow rate of the compressed air supplied from the air pressure-feed device 118.

Thus, each demister 132 can be used appropriately.

In the rotor spinning machine 1 of the present embodiment, the capacity of each of the plurality of mist eliminators 132 is 1000L/min to 20000L/min.

This enables each demister 132 to function satisfactorily.

In the air-jet spinning machine 1 of the present embodiment, the plurality of mist eliminators 132 include a 1 st mist eliminator 132A and a 2 nd mist eliminator 132B arranged adjacent to each other. The 1 st mist eliminator 132A and the 2 nd mist eliminator 132B are arranged along an imaginary horizontal plane. The 1 st mist eliminator 132A is disposed at a position midway along a straight portion (specifically, a straight portion of the 1 st branching pipe 106A) of the branching pipe 106 that is parallel to the virtual horizontal plane. The 1 st mist eliminator 132A is arranged to overlap the 2 nd mist eliminator 132B when viewed along the above straight line portion.

Thus, the plurality of demisters 132 can be provided to save space.

The air-jet spinning machine 1 of the present embodiment includes a drive motor 166 and a housing 160. The drive motor 166 drives the traverse guide 69 of the winding device 27 in the spinning unit 7. The housing 160 houses the drive motor 166. The plurality of mist eliminators 132 are accommodated in the accommodating portion 160.

This enables the plurality of demisters 132 to be efficiently arranged.

In the air-jet spinning machine 1 of the present embodiment, the plurality of mist eliminators 132 are the same type of members.

This can make maintenance work common, and thus can improve workability.

In the rotor spinning machine 1 of the present embodiment, the spinning unit 7 includes a rotor spinning device 23. The air spinning device 23 includes a fiber guide 53, a nozzle body 54, and a hollow guide shaft 55. The fiber guide 53 guides the fiber bundle 34. The nozzle body 54 is formed with a spinning chamber 59 into which the fiber bundle 34 guided from the fiber guide 53 is introduced, and a nozzle 58 through which compressed air injected to generate a whirling air flow in the spinning chamber 59 passes. The hollow guide shaft 55 guides the fiber bundle 34 passing through the spinning chamber 59 to the outside.

Accordingly, in the spinning chamber 59, the spun yarn 30 is produced by twisting the fiber bundle 34 with the air flow of the twist air generated by the compressed air passing through the plurality of mist eliminators 132, and the quality of the produced spun yarn 30 can be improved.

Next, embodiment 2 will be described. In the description of the present embodiment, the same or similar components as those of the previous embodiment are denoted by the same reference numerals in the drawings, and the description thereof may be omitted.

In the present embodiment, as shown in fig. 8, a pressure sensor is provided for the filter unit 130. Specifically, the pressure sensor includes a 1 st pressure sensor 172 and a 2 nd pressure sensor 174. The 1 st pressure sensor 172 is provided on the downstream side of the filter portion 130. The 2 nd pressure sensor 174 is disposed on the upstream side of the filter portion 130.

The 1 st pressure sensor 172 is located downstream of the plurality of branch pipes 106. The 1 st pressure sensor 172 is provided in the delivery pipe 108. The 1 st pressure sensor 172 detects the pressure in the delivery pipe 108. The 1 st pressure sensor 172 is connected to the central control device 13. The 1 st pressure sensor 172 detects the pressure in the delivery pipe 108 at an appropriate timing, and outputs the detected value to the central control device 13.

The 2 nd pressure sensor 174 is located upstream of the plurality of branch pipes 106. The 2 nd pressure sensor 174 is provided in the inlet pipe 104. The 2 nd pressure sensor 174 detects the pressure in the inlet pipe 104. The 2 nd pressure sensor 174 is connected to the central control device 13. The 2 nd pressure sensor 174 detects the pressure in the inlet pipe 104 at an appropriate timing, and outputs the detected value to the central control device 13.

With this configuration, the central control device 13 estimates the amount of accumulation for the plurality of mist eliminators 132 (1 st mist eliminator 132A and 2 nd mist eliminator 132B) in relation to the particulate matter (removed matter) removed by the filter unit 130, based on the difference between the detection value of the 1 st pressure sensor 172 and the detection value of the 2 nd pressure sensor 174.

When the amount of accumulated removed substances exceeds a predetermined value, the central control device 13 displays a notification of this, or when the plurality of demisters 132 are clogged with an unacceptable mesh, on the display unit 15. The accumulation amount of the removed substance estimated by the central control device 13 can be displayed on the display unit 15 when the operator performs an appropriate operation of the operation unit 17.

As described above, the air-jet spinning machine 1 of the present embodiment includes the 1 st pressure sensor 172 and the 2 nd pressure sensor 174. The 1 st pressure sensor 172 detects the pressure in the delivery pipe 108. The 2 nd pressure sensor 174 detects the pressure in the inlet pipe 104.

Accordingly, the amount of deposited removed material for the plurality of mist eliminators 132 in the filter unit 130 can be estimated based on the detection values of the 1 st pressure sensor 172 and the 2 nd pressure sensor 174. Thus, the overall performance (degree of mesh clogging) of the plurality of mist eliminators 132 at the present time, that is, the performance of the filter unit 130 can be managed.

Next, embodiment 3 will be described. In the description of the present embodiment, the same or similar components as those of the previous embodiment are denoted by the same reference numerals in the drawings, and the description thereof may be omitted.

In the present embodiment, as shown in fig. 9, a plurality of plugs (opening/closing members) 182 are provided for each of the plurality of branch pipes 106. The 1 plug 182 is disposed upstream of the demister 132 provided in each branch pipe 106. Specifically, as the pins 182, 1 st pin 182A and 2 nd pin 182B are provided.

The 1 st plug 182A is provided in the 1 st branch pipe 106A. The 1 st plug 182A is disposed upstream of the 1 st demister 132A in the 1 st branch pipe 106A. By operating the 1 st plug 182A, the open/close state of the 1 st branch pipe 106A on the upstream side of the 1 st mist eliminator 132A can be changed.

The 2 nd plug 182B is provided in the 2 nd branch pipe 106B. The 2 nd plug 182B is disposed upstream of the 2 nd demister 132B in the 2 nd branch pipe 106B. By operating the 2 nd plug 182B, the open/close state of the 2 nd branch pipe 106B upstream of the 2 nd demister 132B can be changed.

In the present embodiment, the operation of the 1 st pin 182A is performed by an operator. The operation of the 2 nd bolt 182B is also performed by the operator. The central control device 13 may control the operations of the 1 st pin 182A and the 2 nd pin 182B.

With this configuration, when the 1 st plug 182A is used to close the portion of the 1 st branch pipe 106A upstream of the 1 st mist eliminator 132A, the flow of the compressed air from the 1 st branch pipe 106A to the delivery pipe 108 via the 1 st mist eliminator 132A can be shut off by the 1 st plug 182A. On the other hand, when the 1 st plug 182A is used to open the portion of the 1 st branch pipe 106A upstream of the 1 st demister 132A, the flow of compressed air from the 1 st branch pipe 106A to the delivery pipe 108 through the 1 st demister 132A can be permitted. The 2 nd pin 182B functions in the same manner in the 2 nd branch pipe 106B. At least 1 of the plurality of branch pipes 106 is set to be in an open state during operation of the rotor spinning machine 1.

As described above, the rotor spinning machine 1 of the present embodiment includes the plurality of pins 182. The plugs 182 change the open/close state of the portion of each branch pipe 106 upstream of the demister 132. Specifically, the air-jet spinning machine 1 includes a 1 st pin 182A and a 2 nd pin 182B. The 1 st plug 182A changes the open/close state of a portion of the 1 st branch pipe 106A upstream of the 1 st mist eliminator 132A. The 2 nd plug 182B changes the open/close state of the portion of the 2 nd branch pipe 106B upstream of the 2 nd demister 132B.

Accordingly, even when the upstream side of the defogger 132 is changed to the closed state in at least 1 of the plurality of branch pipes 106 and maintenance of the defogger 132 is performed, the compressed air can be supplied to the spinning unit 7 while the upstream side of the remaining branch pipes 106 is opened, and spinning by the spinning unit 7 can be performed. Thus, the operation efficiency of the spinning unit 7 can be improved.

While the preferred embodiments of the present invention have been described above, the above configuration can be modified as follows. The following modifications and the above embodiments can be appropriately combined.

The number of the plurality of mist eliminators 132 may be arbitrarily selected, but is preferably 2 to 4. In this case, a plurality of mist eliminators 132 can be efficiently applied to the rotor spinning machine 1.

The plurality of mist eliminators 132 (the 1 st mist eliminators 132A and the 2 nd mist eliminators 132B) may be members of different types from each other. For example, the capacities of the 1 st mist eliminator 132A and the 2 nd mist eliminator 132B may be different. The plurality of mist eliminators 132 are preferably of the same type from the viewpoints of management and maintenance.

The plurality of demisters 132 may be installed in a state that can be stored in the storage portion 160. For example, in the case where the plurality of demisters 132 includes the 1 st demister 132A and the 2 nd demister 132B as in the above-described embodiment, the 1 st demister 132A and the 2 nd demister 132B may be arranged in a vertically aligned state or may be arranged in a vertically aligned and staggered state depending on the internal space 162 of the housing portion 160.

The 1 st pressure sensor 172 may be provided in plural and disposed upstream of the demister 132 provided in each of the branch pipes 106. In this case, the 2 nd pressure sensor 174 is also provided in plural numbers and disposed downstream of the demister 132 provided in each of the branch pipes 106. This allows the accumulation amount of the removed substances to be estimated independently for the plurality of mist eliminators 132. Thus, the performance (degree of mesh clogging) at the present time with respect to each of the mist eliminators 132 can be managed.

The number of the plurality of spinning units 7 is not particularly limited, but is preferably 96 to 600. The number of the plurality of spinning units 7 is more preferably 96 to 200. Even when a plurality of spinning units 7 are arranged in this manner, the compressed air can be satisfactorily supplied to each spinning unit 7 via the mist eliminator 132.

The 1 st pressure sensor 172 and the 2 nd pressure sensor 174 may be provided in the compressed air supply unit 100, and a plurality of plugs 182 (1 st plug 182A and 2 nd plug 182B) may be provided at the same time.

The air-jet spinning device 23 may be provided with a pair of air-jet nozzles for twisting the fiber bundle in opposite directions instead of the above-described configuration.

In place of the display unit 15, the notification may be performed by turning on a lamp provided in the power box 5 in a predetermined color, and the notification method is not particularly limited, as to the notification of the case where the amount of the deposited removed substances exceeds a predetermined value, or the case where the plurality of demisters 132 cause an unacceptable mesh blockage, or the like.

In the above embodiment, each device is arranged to take up the spun yarn 30 supplied from the upper side to the lower side in the height direction of the air-jet spinning machine 1. However, each device may be configured to wind the spun yarn supplied from the lower side on the upper side.

In the spinning unit 7, the yarn accumulating device 25 has a function of drawing out the spun yarn 30 from the open-end spinning device 23, but the spun yarn 30 may be drawn out from the open-end spinning device 23 by a feed-out roller and a grip roller. In the case where the spun yarn 30 is pulled out from the air-jet spinning device 23 by the feed roller and the grip roller, a relaxation eliminating tube or a mechanical tension adjusting roller that attracts air flow may be provided instead of the yarn accumulating device 25.

In the air-jet spinning machine 1, at least one of the lower rollers of the draft device 21 and the traverse guide 69 are driven by power from each driving source of the power box 5 (i.e., commonly used by the plurality of spinning units 7). However, each part of the spinning units 7 (for example, the draft device 21, the air-jet spinning device 23, the winding device 27, and the like) may be independently driven for each spinning unit 7.

In the air-jet spinning machine 1, the plurality of spinning units 7 are arranged along one surface of the machine body, but the plurality of spinning units 7 may be arranged along the surface on the opposite side.

In view of the above teachings, it will be apparent that many variations and modifications of the present invention are possible. It is therefore intended that the present invention be limited to the particular embodiments disclosed, but that the invention will be practiced otherwise than as specifically described herein.

Claims

1. An air spinning machine, which is characterized in that,

the device is provided with:

a plurality of spinning units for producing yarn by using the air flow after twisting;

a 1 st pipe for flowing the compressed air supplied from one end side from the other end side toward the plurality of spinning units;

a second piping connected to a compressed air supply source for supplying compressed air to the plurality of spinning units, the compressed air supply source supplying compressed air from one end side;

a plurality of 3 rd pipes branched from the other end of the 2 nd pipe and connected to one end of the 1 st pipe;

a plurality of compressed air purifying filters provided in the 3 rd pipes, respectively;

a 1 st pressure sensor for detecting the pressure in the 1 st piping; and

a 2 nd pressure sensor for detecting the pressure in the 2 nd pipe,

Based on the difference between the detection value of the 1 st pressure sensor and the detection value of the 2 nd pressure sensor, the accumulation amount of the removed substance removed by the plurality of compressed air purification filters is estimated.

2. An air spinning machine according to claim 1, wherein,

the capacity of each of the plurality of compressed air purification filters is 2 times or less the total supply flow rate of the compressed air supplied from the compressed air supply source.

3. An air spinning machine according to claim 1, wherein,

the capacity of each of the plurality of compressed air purification filters is 1000L/min to 20000L/min.

4. An air spinning machine according to claim 2, wherein,

5. An air spinning machine according to claim 1, wherein,

the compressed air purifying filters are demisters.

6. An air spinning machine according to claim 2, wherein,

the compressed air purifying filters are demisters.

7. An air spinning machine according to claim 3, wherein,

The compressed air purifying filters are demisters.

8. The rotor as recited in claim 4, wherein,

the compressed air purifying filters are demisters.

9. An air spinning machine according to claim 1, wherein,

the plurality of compressed air purifying filters include a 1 st compressed air purifying filter and a 2 nd compressed air purifying filter which are disposed adjacent to each other,

the 1 st compressed air purifying filter and the 2 nd compressed air purifying filter are arranged along an imaginary horizontal plane,

the 1 st compressed air purifying filter is disposed at a position in the middle of a straight line portion parallel to the virtual horizontal plane, the straight line portion being provided in the 3 rd pipe,

the 1 st compressed air purification filter is disposed so as to overlap with the 2 nd compressed air purification filter when viewed along the straight line portion.

10. An air spinning machine according to claim 2, wherein,

11. An air spinning machine according to claim 3, wherein,

12. The rotor as recited in claim 4, wherein,

13. An air spinning machine according to claim 5, wherein,

14. An air spinning machine according to claim 6, wherein,

15. An air spinning machine according to claim 7, wherein,

16. An air spinning machine according to claim 8, wherein,

17. The air spinning machine according to claim 1, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

the compressed air purifying filters are accommodated in the accommodating portion.

18. The air spinning machine according to claim 2, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

19. An air spinning machine according to claim 3, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

20. The rotor as claimed in claim 4, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

21. The rotor as claimed in claim 5, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

22. The rotor as claimed in claim 6, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

23. The rotor as claimed in claim 7, comprising:

A driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

24. The air-jet spinning machine according to claim 8, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

25. The air spinning machine according to claim 9, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

26. The rotor as claimed in claim 10, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

27. The rotor as claimed in claim 11, comprising:

a driving source for driving the driving member of the spinning unit; and

A storage unit for storing the driving source,

28. The rotor as claimed in claim 12, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

29. The rotor as claimed in claim 13, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

30. The rotor as claimed in claim 14, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

31. The rotor as claimed in claim 15, comprising:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

32. An air spinning machine according to claim 16, wherein,

the device is provided with:

a driving source for driving the driving member of the spinning unit; and

a storage unit for storing the driving source,

33. An air spinning machine according to any one of claims 1 to 32, wherein a plurality of said compressed air purifying filters are members of the same type as each other.

34. An air spinning machine according to any one of claims 1 to 32, wherein the number of spinning units is 48 or more.

35. The rotor as recited in claim 33, wherein,

the number of the spinning units is 48 or more.

36. An air spinning machine according to any one of claims 1 to 32, wherein the number of the plurality of compressed air purifying filters is 2 to 4.

37. The rotor as recited in claim 33, wherein,

the number of the compressed air purifying filters is 2 to 4.

38. An air spinning machine as claimed in claim 34, wherein,

the number of the compressed air purifying filters is 2 to 4.

39. The rotor as recited in claim 35, wherein,

the number of the compressed air purifying filters is 2 to 4.

40. The air-jet spinning machine according to any one of claims 1 to 32, comprising a plurality of opening/closing members that change an open/close state of a portion of each of the 3 rd pipes upstream of the compressed air purifying filter.

41. The rotor as recited in claim 33, wherein,

the air conditioner includes a plurality of opening/closing members that change the open/close state of the upstream side of the compressed air purification filter in each of the 3 rd pipes.

42. An air spinning machine as claimed in claim 34, wherein,

43. The rotor as recited in claim 35, wherein,

44. An air spinning machine as claimed in claim 36, wherein,

45. An air spinning machine as claimed in claim 37, wherein,

46. An air spinning machine as claimed in claim 38, wherein,

47. An air spinning machine as claimed in claim 39, wherein,

48. An air spinning machine as claimed in any one of claims 1 to 32, wherein,

the spinning unit is provided with an air spinning device,

The air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

a nozzle body that forms a spinning chamber into which the fiber bundle guided by the fiber guiding section is introduced and a nozzle through which compressed air injected to generate a whirling air flow in the spinning chamber passes; and

and a hollow guide shaft body for guiding the fiber bundle passing through the spinning chamber to the outside.

49. The rotor as recited in claim 33, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

50. An air spinning machine as claimed in claim 34, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

51. The rotor as recited in claim 35, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

52. An air spinning machine as claimed in claim 36, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

53. An air spinning machine as claimed in claim 37, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

54. An air spinning machine as claimed in claim 38, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

55. An air spinning machine as claimed in claim 39, wherein,

the spinning unit is provided with an air spinning device,

The air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

56. The rotor as recited in claim 40, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

57. An air spinning machine as claimed in claim 41, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

58. An air spinning machine as claimed in claim 42, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

59. The rotor as recited in claim 43, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

60. The rotor as recited in claim 44, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

61. The rotor as recited in claim 45, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

62. The rotor as recited in claim 46, wherein,

the spinning unit is provided with an air spinning device,

The air spinning device comprises:

a fiber guide section for guiding the fiber bundle;

63. An air spinning machine as claimed in claim 47, wherein,

the spinning unit is provided with an air spinning device,

the air spinning device comprises:

a fiber guide section for guiding the fiber bundle;