JP2021113378A - Air spinning machine - Google Patents

Abstract

To provide an air spinning machine capable of reducing a pressure loss caused by an air purifying filter without increasing a size of the single air purifying filter.SOLUTION: An air spinning machine comprises a plurality of spinning units, a feeding-out pipe 108, an inlet pipe 104, a plurality of branch pipes 106, and a plurality of mist separators (air purification filters) 132. The plurality of spinning units generate yarn with a swirling air flow. In the feeding-out 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 pumping device for supplying compressed air to the plurality of spinning units, and compressed air is supplied from one end side by the air pumping device. The plurality of branch pipes 106 are connected to one end side of the feeding-out pipe 108 after branching from the other end side of the inlet pipe 104. The plurality of mist separators 132 are provided in the plurality of branch pipes 106, respectively.SELECTED DRAWING: Figure 5

Description

The present invention relates to an air spinning machine.

Conventionally, a spinning machine (air spinning machine) in which a swirling air flow is formed by compressed air and yarn is generated by this swirling air flow is known. Patent Document 1 discloses this type of spinning machine.

The spinning machine of Patent Document 1 has a spinning unit having an air spinning device and an air pipe. The air pipe guides the air pumped from the air pressure feed device through the air supply pipe to the air spinning device.

Japanese Unexamined Patent Publication No. 2018-076607

In a spinning machine as in Patent Document 1, the mist in the air is usually removed before the air is supplied to the air spinning apparatus. Specifically, an air purification filter such as a mist separator is provided on the air supply pipe. However, regarding the pumping of air, there is a problem that the pressure loss in the air purification filter is large. It is considered that this point can be improved by increasing the size of the air purification filter, but there is a limit to the increase in size of the air purification filter.

An object of the present invention is to provide an air spinning machine capable of reducing the pressure loss caused by the air purifying filter without increasing the size of the air purifying filter alone.

Means and effects to solve problems

From the viewpoint of the present invention, an air spinning machine having the following configuration is provided. That is, this air spinning machine includes a plurality of spinning units, a first pipe, a second pipe, a plurality of third pipes, and a plurality of compressed air purification filters. The plurality of spinning units generate yarn with a swirling air flow. In the first pipe, compressed air supplied from one end side flows from the other end side toward the plurality of spinning units. The second pipe is connected to a compressed air supply source for supplying compressed air to the plurality of spinning units, and compressed air is supplied from one end side by the compressed air supply source. The plurality of the third pipes are branched from the other end side of the second pipe and then connected to one end side of the first pipe. The plurality of compressed air cleaning filters are provided in the plurality of third pipes, respectively.

As a result, when compressed air is supplied to a plurality of spinning units, the pressure loss caused by the air cleaning filter can be reduced without increasing the size of the air cleaning filter alone. Further, it is possible to delay the progress of deterioration (clogging) of the respective capacities of the plurality of air purifying filters and prolong the replacement cycle of each air purifying filter.

In the air spinning machine, the capacity of each of the plurality of compressed air purifying filters is preferably twice or less the total supply flow rate of the compressed air supplied from the compressed air supply source.

As a result, each air purification filter can be preferably used.

In the air spinning machine, the capacity of each of the plurality of compressed air purifying filters is preferably 1000 L / min or more and 20000 L / min or less.

As a result, each air purifying filter can function well.

The above-mentioned air spinning machine preferably has the following configuration. That is, this air spinning machine includes a first pressure sensor and a second pressure sensor. The first pressure sensor detects the pressure in the first pipe. The second pressure sensor detects the pressure in the second pipe.

Thereby, the amount of the removed substance deposited on the air cleaning filter can be estimated based on the detected values of the first pressure sensor and the second pressure sensor. Therefore, it is possible to control the current overall performance (degree of clogging) of the air purification filter.

In the air spinning machine, it is preferable that each of the plurality of compressed air cleaning filters is a mist separator.

As a result, mist in the air can be efficiently removed.

The above-mentioned air spinning machine preferably has the following configuration. That is, the plurality of compressed air cleaning filters include a first compressed air cleaning filter and a second compressed air cleaning filter arranged adjacent to each other. The first compressed air cleaning filter and the second compressed air cleaning filter are arranged along a virtual horizontal plane. The first compressed air cleaning filter is arranged in the middle of a straight portion parallel to the virtual horizontal plane of the third pipe. When viewed along the straight portion, the first compressed air cleaning filter is arranged so as to overlap with the second compressed air cleaning filter.

As a result, it is possible to save space when installing a plurality of compressed air purification filters.

The above-mentioned air spinning machine preferably has the following configuration. That is, this air spinning machine includes a drive source and a storage unit. The drive source drives a drive member of the spinning unit. The storage unit stores the drive source. The plurality of compressed air cleaning filters are stored in the storage unit.

As a result, a plurality of compressed air cleaning filters can be efficiently arranged.

In the air spinning machine, it is preferable that the plurality of compressed air cleaning filters are members of the same type.

As a result, maintenance work can be standardized, and workability can be improved.

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

This makes it possible to satisfactorily supply compressed air to a large number of spinning units via a compressed air cleaning filter.

In the air spinning machine, the number of the plurality of compressed air purifying filters is preferably 2 or more and 4 or less.

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

The above-mentioned air spinning machine preferably has the following configuration. That is, this air spinning machine includes a plurality of opening / closing members. The opening / closing member changes the opening / closing state of each of the third pipes on the upstream side of the compressed air cleaning filter.

As a result, even while the upstream side of the compressed air cleaning filter is changed to the closed state in at least one third pipe among the plurality of third pipes and the compressed air cleaning filter is maintained. With the upstream side of the compressed air cleaning filter in the remaining third pipe open, compressed air can be supplied to the spinning unit to perform spinning by the spinning unit. Therefore, the operating efficiency of the spinning unit can be improved.

The above-mentioned air spinning machine preferably has the following configuration. That is, the spinning unit includes an air spinning device. The air spinning device has a fiber guide, a nozzle block, and a hollow guide shaft. The fiber guide section guides the fiber bundle. The nozzle block forms a spinning chamber into which the fiber bundle guided from the fiber guide portion is introduced, and a nozzle through which the compressed air injected to generate a swirling air flow in the spinning chamber passes. Form. The hollow guide shaft guides the fiber bundle that has passed through the spinning chamber to the outside.

As a result, in the spinning chamber, the fiber bundle is twisted by the swirling air flow generated by the compressed air that has passed through the plurality of compressed air purification filters, and the spun yarn is produced. The quality of the can be improved.

The front view which shows the overall structure of the air spinning machine which concerns on 1st Embodiment of this invention. Side view of the spinning unit and the thread joint bogie. A side sectional view showing the structure of an air spinning apparatus and its surroundings. The figure which shows the structure of the compressed air supply part. Perspective view of a plurality of mist separators. Side view of multiple mist separators. The perspective view which shows the installation state of a plurality of mist separators. The figure which shows the structure of a part of the compressed air supply part in 2nd Embodiment of this invention. The figure which shows the structure of a part of the compressed air supply part in 3rd Embodiment of this invention.

Next, the air spinning machine 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the air spinning machine 1 includes a blower box 3, a prime mover box 5, a plurality of spinning units 7, and a thread joint trolley (working trolley) 9. The plurality of spinning units 7 are arranged side by side in a predetermined direction.

A blower 11 or the like that functions as a negative pressure source is arranged in the blower box 3.

A drive source (not shown), a central control device 13, a display unit 15, and an operation unit 17 are arranged in the prime mover box 5.

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

The display unit 15 can display the setting contents for the spinning unit 7 and / or the information regarding the state of each spinning unit 7. The operator can operate the operation unit 17 to make settings for the spinning unit 7.

As shown in FIG. 2, each spinning unit 7 mainly includes a draft device 21, an air spinning device 23, a yarn storage device 25, and a winding device 27, which are arranged in order from upstream to downstream. Be prepared. 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 at the time of winding the spun yarn (yarn) 30.

The draft device 21 is provided near the upper end of the frame 36 included in the air spinning machine 1. The draft device 21 includes four draft roller pairs. The four draft roller pairs are a back roller pair 41, a third roller pair 43, a middle roller pair 45, and a front roller pair 47, which are arranged in order from upstream to downstream. An apron belt 49 is provided for each roller on the middle roller pair 45.

The draft device 21 stretches the sliver 32 supplied from the sliver case (not shown) until it reaches a predetermined fiber amount (or thickness) by sandwiching and transporting the sliver 32 between the rollers of each draft roller pair. Draft) to produce fiber bundles 34. The fiber bundle 34 generated by the draft device 21 is supplied to the air spinning device 23.

The air spinning device 23 twists the fiber bundle 34 drafted by the drafting device 21 by a swirling air flow to generate a spun yarn 30. Specifically, as shown in FIG. 3, the air spinning apparatus 23 includes a first holder 51 and a second holder 52. The first holder 51 has a fiber guide portion 53 and a nozzle block 54. The second holder 52 has a hollow guide shaft body 55.

The fiber guide portion 53 guides the fiber bundle 34 drafted by the draft device 21 toward the inside of the air spinning device 23. The fiber guide portion 53 is provided with a fiber introduction port 56 and a guide needle 57. The fiber bundle 34 drafted by the draft device 21 is introduced into the fiber guide portion 53 from the fiber introduction port 56, and is guided into the spinning chamber 59 so as to be wound around the guide needle 57.

A plurality of nozzles 58 are formed in the nozzle block 54. The nozzle block 54 forms a spinning chamber 59 together with the fiber guide portion 53 and the hollow guide shaft body 55. The air spinning device 23 ejects compressed air (air) supplied from the unit pipe 114, which will be described later, from the nozzle 58 into the spinning chamber 59, and causes a swirling air flow to act on the fiber bundle 34 in the spinning chamber 59. The guide needle 57 may be omitted, and the downstream end of the fiber guide portion 53 may have the function of the guide needle 57.

A thread passage 60 is formed at the center of the shaft of the hollow guide shaft body 55. The compressed air ejected from the nozzle 58 swings one end of the fiber of the fiber bundle 34 around the tip of the hollow guide shaft 55. After that, the fiber bundle 34 is guided as the spun yarn 30 to the outside of the air spinning device 23 from the yarn outlet (not shown) on the downstream side through the yarn passage 60.

The yarn storage device 25 draws out the spun yarn 30 produced by the air spinning device 23. The thread storage device 25 includes a thread storage roller 62 and a motor 63.

The thread storage roller 62 is rotationally driven by the motor 63. The yarn storage roller 62 winds the spun yarn 30 around its outer peripheral surface and temporarily stores the spun yarn 30. The yarn storage roller 62 draws the spun yarn 30 from the air spinning apparatus 23 at a predetermined speed by rotating the spun yarn 30 around the outer peripheral surface at a predetermined rotation speed.

In this way, the yarn storage device 25 can temporarily store the spun yarn 30 on the outer peripheral surface of the yarn storage roller 62, and thus functions as a kind of buffer for the spun yarn 30. As a result, there is a problem that the spinning speed in the air spinning apparatus 23 and the winding speed (running speed of the spinning yarn 30 wound on the package 73 described later) do not match for some reason (for example, slack in the spinning yarn 30). Etc.) can be eliminated.

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

The yarn monitoring device 65 monitors the quality (thickness, etc.) of the running spun yarn 30 with a light-transmitting sensor, and a yarn defect contained in the spun yarn 30 (a place where the thickness of the spun yarn 30 is abnormal and / / Or foreign matter, etc.) is detected. When the yarn monitoring device 65 detects a yarn defect of the spun yarn 30, it transmits a yarn defect detection signal to the unit control unit 19. The yarn monitoring device 65 is not limited to the light transmission type sensor, and for example, a light reflection 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 unit 19 cuts the spun yarn 30 by stopping the drive of the air spinning device 23 and / or the draft device 21. That is, the air spinning device 23 has a function as a cutting portion for cutting the spun yarn 30 when the yarn monitoring device 65 detects a yarn defect. The spun yarn 30 may be cut using a cutter.

The take-up device 27 includes a cradle arm 67, a take-up drum 68, and a traverse guide 69. The cradle arm 67 is swingably supported around the support shaft 70, and can rotatably support the bobbin 71 (that is, the package 73) for winding the spun yarn 30. The take-up drum 68 rotates in contact with the bobbin 71 or the outer peripheral surface of the package 73 to rotationally drive the package 73 in the take-up direction. The take-up device 27 drives the take-up drum 68 by the electric motor (not shown) while reciprocating the traverse guide 69 by the drive motor (drive source) 166 described later. As a result, the take-up device 27 winds the spun yarn 30 around the package 73 while swinging the spun yarn 30.

As shown in FIG. 1, on the frame 36 of the air spinning machine 1, rails 81 are arranged along the direction in which a plurality of spinning units 7 are arranged. The thread joint carriage 9 is configured to be able to travel on the rail 81. As a result, the thread joint carriage 9 can be moved with respect to the plurality of spinning units 7. The yarn splicing carriage 9 travels to the spinning unit 7 where the yarn breakage has occurred, and performs the yarn splicing work for the spinning unit 7.

The thread joint carriage 9 includes traveling wheels 83. As shown in FIG. 2, the thread splicing bogie 9 further includes a thread splicing device 85, a thread catching unit (suction pipe 87 and a suction mouse 89), and a bogie control unit 91.

The suction pipe 87 can suck and capture the spun yarn 30 sent out from the air spinning device 23 by generating a suction air flow at the tip thereof. The suction mouse 89 can suck and capture the spun yarn 30 from the package 73 supported by the take-up device 27 by generating a suction air flow at the tip thereof. The suction pipe 87 and the suction mouse 89 rotate while capturing the spun yarn 30 to guide the spun yarn 30 to a position where the spun yarn 30 can be introduced into the yarn splicing device 85.

The yarn splicing device 85 splics the spun yarn 30 from the air spinning device 23 guided by the suction pipe 87 and the spun yarn 30 from the package 73 guided by the suction mouse 89. In the present embodiment, the yarn splicing device 85 is a splicer device that twists yarn ends with each other by a swirling air flow. The thread splicing device 85 is not limited to the splicer device, and for example, a mechanical knotter or the like can be adopted. The yarn splicing carriage 9 may not be provided with the yarn splicing device 85, and the spun yarn 30 may be connected by piecing. That is, the yarn joint trolley 9 pulls out the spun yarn 30 from the package 73, sends it back to the air spinning device 23, and then starts the draft operation by the draft device 21 and the spinning operation by the air spinning device 23. The spun yarn 30 may be put into a continuous state again.

The carriage control unit 91 is configured as a known computer having a CPU, ROM, RAM, etc. (not shown). The bogie control unit 91 controls the thread splicing work performed by the thread splicing bogie 9 by controlling the operation of each part included in the thread splicing bogie 9.

Next, a configuration for supplying compressed air to each spinning unit 7 in the air spinning machine 1 will be described with reference to FIG.

As shown in FIG. 4, the air spinning machine 1 includes a compressed air supply unit 100. The compressed air supply unit 100 includes an inlet pipe (second pipe) 104, a plurality of branch pipes (third pipe) 106, a delivery pipe (first pipe) 108, a spinning pipe 112, and a unit pipe 114. Be prepared.

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

The air pumping device 118 is provided at a predetermined place (factory or the like) where the air spinning machine 1 is installed. The air pressure feeding device 118 is, for example, an electric compressor that pressurizes and sends out air by driving an electric motor.

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

As described above, the delivery pipe 108 is connected to the other end side of each of the plurality of branch pipes 106 on one end side. The delivery pipe 108 joins the other ends of the plurality of branch pipes 106. The delivery pipe 108 collects the compressed air from the plurality of branch pipes 106 and then distributes the compressed air. Compressed air flows from the other end side of the delivery pipe 108 to 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 along the direction in which the spinning units 7 are arranged.

The unit pipe 114 is connected to the spinning pipe 112. Compressed air from the spinning pipe 112 flows to the spinning unit 7 via each unit pipe 114. The number of unit pipes 114 is the same as the number of spinning units 7, and one unit pipe 114 is provided for each spinning unit 7. The unit pipe 114 corresponding to each spinning unit 7 is connected to the spinning pipe 112 on one end side and connected to the air spinning device 23 of the spinning unit 7 on the other end side.

A carriage supply pipe 120 is connected to the delivery pipe 108. The carriage supply pipe 120 is branched from the delivery pipe 108. The bogie supply pipe 120 is configured to be connectable to the thread joint bogie 9. As a result, a part of the compressed air sent out from the air pressure feeding device 118 flows to the thread joint bogie 9 via the sending pipe 108 and the bogie supply pipe 120. The compressed air supplied from the bogie supply pipe 120 to the thread splicing bogie 9 is used, for example, for thread splicing in the thread splicing device 85.

The compressed air supply unit 100 includes a regulator 124. The regulator 124 is provided on the upstream side of the delivery pipe 108 with respect to the connection point with the carriage supply pipe 120. The regulator 124 can adjust the pressure (spinning pressure) of the compressed air supplied from the delivery pipe 108 to each spinning unit 7. The compressed air whose pressure is 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 a plurality of branch pipes 106. The filter unit 130 is provided with a plurality of mist separators (compressed air cleaning filters) 132. One mist separator 132 is provided for each branch pipe 106. The mist separator 132 separates particulate matter in the passing compressed air from the compressed air. As a result, clean compressed air from which particulate matter has been removed can be supplied to the regulator 124 and thus to the spinning unit 7.

A supply valve 142 is provided on the upstream side of the filter unit 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 keeps the supply valve 142 open when the air spinning machine 1 is in operation. 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 FIGS. 4, 5, 6 and 7.

The filter unit 130 is applied to a plurality of branch pipes 106 and has a plurality of mist separators 132. The plurality of mist separators 132 are provided in the same number as the plurality of branch pipes 106. As described above, one mist separator 132 is provided for each branch pipe 106. In this embodiment, the number of the plurality of branch pipes 106 is 2. Correspondingly, the number of the plurality of mist separators 132 is also 2.

Specifically, as shown in FIG. 4, two branch pipes 106 including a first branch pipe 106A and a second branch pipe 106B are provided as the plurality of branch pipes 106. Therefore, the plurality of mist separators 132 are two, a first mist separator (first compressed air cleaning filter) 132A and a second mist separator (second compressed air cleaning filter) 132B.

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

The first mist separator 132A is provided in the first branch pipe 106A. Specifically, the first branch pipe 106A has two bent portions, and a straight portion having an appropriate length is formed between the two bent portions. The first mist separator 132A is arranged in the middle of this straight portion. The first mist separator 132A removes particulate matter from the compressed air flowing through the air flow path formed in the first branch pipe 106A. The second mist separator 132B is provided in the second branch pipe 106B. Specifically, the second branch pipe 106B has a bent portion, and a straight portion having an appropriate length is provided between the bent portion and the portion where the second branch pipe 106B is connected to the first branch pipe 106A. Is formed. The second mist separator 132B is arranged in the middle of this straight portion. The second mist separator 132B removes particulate matter from the compressed air flowing through the air flow path formed in the second branch pipe 106B. The straight portion of the first branch pipe 106A in which the first mist separator 132A is arranged and the straight portion of the second branch pipe 106B in which the second mist separator 132B is arranged are parallel to each other.

The respective capacities of the first mist separator 132A and the second mist separator 132B are not more than twice the total supply flow rate of the compressed air supplied from the air pumping device 118. In the present embodiment, the respective capacities of the first mist separator 132A and the second mist separator 132B are 1000 L / min or more and 20000 L / min or less. This capacity can be arbitrarily selected according to the total supply flow rate of the compressed air described above. In the present embodiment, the first mist separator 132A and the second mist separator 132B have the same capacity, but may have different capacities from each other.

In the present embodiment, the first mist separator 132A and the second mist separator 132B are both micro mist separators. Considering that the micro mist separators are the same type, the oil mist separators are the same type, and the micro mist separator and the oil mist separator are different types, in the present embodiment, the first mist separator 132A and the second mist separator 132B are different. They are the same type of members. Normally, the maintenance work required for the micro mist separator and the oil mist separator is different, but according to the present embodiment, the same maintenance work can be performed on the two mist separators 132.

As shown in FIG. 5, each of the first mist separator 132A and the second mist separator 132B is provided so as to extend in one direction (vertical direction), and has a predetermined width in a direction perpendicular to the vertical direction. The first mist separator 132A and the second mist separator 132B are substantially arranged at predetermined intervals on a virtual horizontal plane extending vertically in the vertical direction.

The first mist separator 132A is arranged on substantially the same virtual horizontal plane as the adjacent second mist separator 132B. When viewed in the direction of the straight portion of the first branch pipe 106A in which the first mist separator 132A is arranged (direction of arrow 152 in FIG. 5), the first mist separator 132A has a second mist as shown in FIG. It is arranged so as to overlap with the separator 132B. That is, the first mist separator 132A and the second mist separator 132B are installed in a staggered pattern.

In such an arrangement, the first mist separator 132A and the second mist separator 132B are stored in the storage unit 160 of the air spinning machine 1. Specifically, the air spinning machine 1 includes a storage unit 160 as shown in FIG. 7. The storage portion 160 is formed in a hollow box shape by appropriately combining and fixing a plurality of elongated frame members. The storage unit 160 includes a plate-shaped member attached to the frame member, and the display unit 15 and the operation unit 17 are provided on the plate-shaped member.

In the internal space 162 of the storage unit 160, in addition to the first mist separator 132A and the second mist separator 132B, a drive motor (drive source) for driving the traverse guide 69 (driving member of the spinning unit 7) of the winding device 27. 166 is stored. The first mist separator 132A and the second mist separator 132B are arranged below the internal space 162 of the storage unit 160. The drive motor 166 is also arranged below the internal space 162 of the storage unit 160. In the present embodiment, the drive motor 166 is arranged on the lower side and the front side of the internal space 162, and the mist separator 132 is arranged on the lower side and the rear side of the internal space 162. Other members may be arranged below the internal space 162. On the upper side of the internal space 162, for example, each drive source of the front roller pair 47 and the middle roller pair 45, and the central control device 13 are stored.

In the present embodiment, the entire first branch pipe 106A and the entire second branch pipe 106B provided with the first mist separator 132A and the second mist separator 132B are also stored in the internal space 162 of the storage unit 160. ing. The first mist separator 132A, the second mist separator 132B, the first branch pipe 106A, and / or the second branch pipe 106B are appropriately supported by the frame member of the storage portion 160.

With such a configuration, when compressed air is supplied from the air pressure feeding device 118 to the inlet pipe 104, the compressed air is divided into a plurality of branch pipes 106 from the inlet pipe 104, that is, the first branch pipe 106A and the second branch pipe 106B. Flows. A part of the compressed air that has flowed to the first branch pipe 106A passes through the first mist separator 132A and then flows to the delivery pipe 108. A part of the compressed air that has flowed to the second branch pipe 106B passes through the second mist separator 132B and then flows to the delivery pipe 108.

In the process in which the compressed air flows through the first branch pipe 106A and the second branch pipe 106B, the particulate matter in the compressed air is removed by each of the first mist separator 132A and the second mist separator 132B, and at least one of the compressed air is removed. The part is cleaned. When the compressed air flowing through each branch pipe 106 reaches the delivery pipe 108, the compressed air joins at one end side of the delivery pipe 108. Then, the compressed air flows from the delivery pipe 108 to the spinning pipe 112.

As described above, the air spinning machine 1 of the present embodiment includes a plurality of spinning units 7, a delivery pipe 108, an inlet pipe 104, a plurality of branch pipes 106, and a plurality of mist separators 132 (first mist). A separator 132A and a second mist separator 132B) are provided. The plurality of spinning units 7 generate yarn by a swirling air flow. The delivery pipe 108 is configured so that the compressed air supplied from one end side flows from the other end side toward the plurality of spinning units 7. The inlet pipe 104 is connected to an air pressure feeding device 118 for supplying compressed air to a plurality of spinning units 7, and compressed air is supplied from one end side by the air pressure feeding device 118. The plurality of branch pipes 106 are connected to one end side of the delivery pipe 108 after branching from the other end side of the inlet pipe 104. Each of the plurality of mist separators 132 is provided in the plurality of branch pipes 106.

As a result, when compressed air is supplied to the plurality of spinning units 7, the pressure loss caused by the mist separator 132 can be reduced without increasing the size of the mist separator 132 alone. In other words, energy saving of the air spinning machine 1 can be realized. Further, it is possible to delay the progress of deterioration (clogging) of the respective capacities of the plurality of mist separators 132 and prolong the replacement cycle of each mist separator 132.

In the air spinning machine 1 of the present embodiment, the capacity of each of the plurality of mist separators 132 is not more than twice the total supply flow rate of the compressed air supplied from the air pumping device 118.

Thereby, each mist separator 132 can be preferably used.

In the air spinning machine 1 of the present embodiment, the capacities of the plurality of mist separators 132 are 1000 L / min or more and 20000 L / min or less.

Thereby, each mist separator 132 can be made to function well.

In the air spinning machine 1 of the present embodiment, the plurality of mist separators 132 include a first mist separator 132A and a second mist separator 132B arranged adjacent to each other. The first mist separator 132A and the second mist separator 132B are arranged along a virtual horizontal plane. The first mist separator 132A is arranged in the middle of the straight portion (specifically, the straight portion of the first branch pipe 106A) parallel to the virtual horizontal plane of the branch pipe 106. When viewed along the straight portion, the first mist separator 132A is arranged so as to overlap with the second mist separator 132B.

As a result, it is possible to save space when installing the plurality of mist separators 132.

The air spinning machine 1 of the present embodiment includes a drive motor 166 and a storage unit 160. The drive motor 166 drives the traverse guide 69 of the take-up device 27 in the spinning unit 7. The storage unit 160 stores the drive motor 166. The plurality of mist separators 132 are stored in the storage unit 160.

Thereby, a plurality of mist separators 132 can be efficiently arranged.

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

As a result, maintenance work can be standardized, and workability can be improved.

In the air spinning machine 1 of the present embodiment, the spinning unit 7 includes an air spinning device 23. The air spinning device 23 has a fiber guide portion 53, a nozzle block 54, and a hollow guide shaft body 55. The fiber guide portion 53 guides the fiber bundle 34. The nozzle block 54 is formed with a spinning chamber 59 into which the fiber bundle 34 guided by the fiber guide portion 53 is introduced, and compressed air injected into the spinning chamber 59 to generate a swirling air flow passes through the nozzle block 54. The nozzle 58 is formed. The hollow guide shaft body 55 guides the fiber bundle 34 that has passed through the spinning chamber 59 to the outside.

As a result, in the spinning chamber 59, the fiber bundle 34 is twisted by the swirling air flow generated by the compressed air that has passed through the plurality of mist separators 132, and the spun yarn 30 is generated. The quality of the thread 30 can be improved.

Next, the second embodiment will be described. In the description of the present embodiment, the same or similar members as those in the above-described embodiment may be designated by the same reference numerals in the drawings, and the description 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 first pressure sensor 172 and a second pressure sensor 174. The first pressure sensor 172 is provided on the downstream side of the filter unit 130. A second pressure sensor 174 is provided on the upstream side of the filter unit 130.

The first pressure sensor 172 is located on the downstream side of the plurality of branch pipes 106. The first pressure sensor 172 is provided in the delivery pipe 108. The first pressure sensor 172 detects the pressure in the delivery pipe 108. The first pressure sensor 172 is connected to the central control device 13. The first 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 second pressure sensor 174 is located on the upstream side of the plurality of branch pipes 106. The second pressure sensor 174 is provided in the inlet pipe 104. The second pressure sensor 174 detects the pressure in the inlet pipe 104. The second pressure sensor 174 is connected to the central control device 13. The second 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 such a configuration, the central control device 13 has a particulate matter (removed substance) removed by the filter unit 130 based on the difference between the detected value of the first pressure sensor 172 and the detected value of the second pressure sensor 174. ) Is estimated to be deposited on a plurality of mist separators 132 (first mist separator 132A and second mist separator 132B).

The central control device 13 notifies the display unit 15 that when the accumulated amount of the removed substance exceeds a predetermined value, or that unacceptable clogging has occurred in the plurality of mist separators 132. Display on. The accumulated 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 spinning machine 1 of the present embodiment includes a first pressure sensor 172 and a second pressure sensor 174. The first pressure sensor 172 detects the pressure in the delivery pipe 108. The second pressure sensor 174 detects the pressure in the inlet pipe 104.

Thereby, the amount of the removed substance deposited on the plurality of mist separators 132 in the filter unit 130 can be estimated based on the respective detection values of the first pressure sensor 172 and the second pressure sensor 174. Therefore, it is possible to manage the current overall performance (degree of clogging) of the plurality of mist separators 132, that is, the performance of the filter unit 130.

Next, the third embodiment will be described. In the description of the present embodiment, the same or similar members as those in the above-described embodiment may be designated by the same reference numerals in the drawings, and the description may be omitted.

In the present embodiment, as shown in FIG. 9, a plurality of cocks (opening / closing members) 182 are provided for each of the plurality of branch pipes 106. One cock 182 is arranged on the upstream side of the mist separator 132 provided in each branch pipe 106. Specifically, as the cock 182, a first cock 182A and a second cock 182B are provided.

The first cock 182A is provided in the first branch pipe 106A. The first cock 182A is arranged on the upstream side of the first branch pipe 106A with respect to the first mist separator 132A. By operating the first cock 182A, the open / closed state of the first branch pipe 106A on the upstream side of the first mist separator 132A can be changed.

The second cock 182B is provided in the second branch pipe 106B. The second cock 182B is arranged on the upstream side of the second branch pipe 106B with respect to the second mist separator 132B. By operating the second cock 182B, the open / closed state of the second branch pipe 106B on the upstream side of the second mist separator 132B can be changed.

In the present embodiment, the operation of the first cock 182A is performed by the operator. The operation of the second cock 182B is also performed by the operator. The operation of the first cock 182A and the second cock 182B may be controlled by the central control device 13.

With such a configuration, when the upstream side of the first branch pipe 106A is closed from the first mist separator 132A by using the first cock 182A, the delivery pipe is sent from the first branch pipe 106A via the first mist separator 132A. The flow of compressed air toward 108 can be blocked by the first cock 182A. On the other hand, when the first cock 182A is used to open the upstream side of the first branch pipe 106A from the first mist separator 132A, the first branch pipe 106A passes through the first mist separator 132A and heads for the delivery pipe 108. The flow of compressed air can be tolerated. The second cock 182B functions similarly in the second branch pipe 106B. When the air spinning machine 1 is in operation, at least one of the plurality of branch pipes 106 is opened.

As described above, the air spinning machine 1 of the present embodiment includes a plurality of cocks 182. The cock 182 changes the open / closed state of each branch pipe 106 on the upstream side of the mist separator 132. Specifically, the air spinning machine 1 includes a first cock 182A and a second cock 182B. The first cock 182A changes the open / closed state of the first branch pipe 106A on the upstream side of the first mist separator 132A. The second cock 182B changes the open / closed state of the second branch pipe 106B on the upstream side of the second mist separator 132B.

As a result, at least one of the plurality of branch pipes 106 is changed to the closed state on the upstream side of the mist separator 132, and the remaining branches are maintained even while the mist separator 132 is being maintained. With the upstream side of the pipe 106 open, compressed air can be supplied to the spinning unit 7 to perform spinning by the spinning unit 7. Therefore, the operating efficiency of the spinning unit 7 can be improved.

Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example. The above embodiment and the following modifications can be combined as appropriate.

The number of the plurality of mist separators 132 can be arbitrarily selected, but is preferably 2 or more and 4 or less. In this case, the plurality of mist separators 132 can be efficiently applied to the air spinning machine 1.

The plurality of mist separators 132 (first mist separator 132A and second mist separator 132B) may be members of different types from each other. For example, the capacities of the first mist separator 132A and the second mist separator 132B may be different. From the viewpoint of management and maintenance, the plurality of mist separators 132 are preferably the same type as each other.

The installation state of the plurality of mist separators 132 may be any state as long as they can be stored in the storage unit 160. For example, when a plurality of mist separators 132 have the first mist separator 132A and the second mist separator 132B as in the above embodiment, the first mist separator 132A and the second mist according to the internal space 162 of the storage unit 160. The separators 132B may be installed in a vertically arranged state, or may be arranged in a staggered manner while being arranged in the vertically direction.

A plurality of first pressure sensors 172 may be provided and may be arranged on the upstream side of the mist separator 132 provided in each branch pipe 106. In this case, a plurality of second pressure sensors 174 are also provided and arranged on the downstream side of the mist separator 132 provided in each branch pipe 106. Thereby, the accumulated amount of the removed substance can be estimated individually for the plurality of mist separators 132. Therefore, the current performance (degree of clogging) of each mist separator 132 can be controlled.

The number of the plurality of spinning units 7 is not particularly limited, but is preferably 96 or more and 600 or less. The number of the plurality of spinning units 7 is more preferably 96 or more and 200 or less. Even when a large number of spinning units 7 are arranged in this way, compressed air can be satisfactorily supplied to the individual spinning units 7 via the mist separator 132.

The compressed air supply unit 100 may be provided with a first pressure sensor 172 and a second pressure sensor 174, and at the same time, may be provided with a plurality of cocks 182 (first cock 182A and second cock 182B).

Instead of the above configuration, the air spinning device 23 may include a pair of air jet nozzles that twist the fiber bundles in opposite directions.

If the accumulated amount of the removed substance exceeds a predetermined value, a notification to that effect or that an unacceptable clogging has occurred in the plurality of mist separators 132 is displayed instead of being displayed on the display unit 15. Therefore, the method may be performed by turning on the lamp provided in the prime mover box 5 to a predetermined color, and the notification method is not particularly limited.

In the above embodiment, each device is arranged so that the spun yarn 30 supplied on the upper side is wound on the lower side in the height direction of the air spinning machine 1. However, each device may be arranged so that the spun yarn supplied on the lower side is wound on the upper side.

In the spinning unit 7, the yarn storage device 25 has a function of drawing out the spun yarn 30 from the air spinning device 23, but the spun yarn 30 may be pulled out from the air spinning device 23 by the delivery roller and the nip roller. When the spun yarn 30 is pulled out from the air spinning device 23 by the delivery roller and the nip roller, a slack tube using a suction air flow, a mechanical compensator, or the like may be provided instead of the yarn storage device 25.

In the air spinning machine 1, at least one of the bottom rollers of the draft device 21 and the traverse guide 69 were driven by power from each drive source of the prime mover box 5 (that is, common to the plurality of spinning units 7). However, each part of the spinning unit 7 (for example, the draft device 21, the air spinning device 23, the winding device 27, etc.) may be driven independently for each spinning unit 7.

In the air spinning machine 1, a plurality of spinning units 7 are arranged along one surface of the machine base, but a plurality of spinning units 7 may be similarly arranged along the surface on the opposite surface. ..

Considering the above teachings, it is clear that the present invention can take many modified and modified forms. Therefore, it should be understood that the present invention may be practiced in a manner other than that described herein, within the scope of the appended claims.

1 Pneumatic spinning machine 7 Spinning unit 23 Pneumatic spinning device 34 Fiber bundle 53 Fiber guide 54 Nozzle block 55 Hollow guide shaft 58 Nozzle 59 Spinning chamber 69 Traverse guide (driving member)
104 Inlet pipe (second pipe)
106 Branch piping (third piping)
106A 1st branch pipe 106B 2nd branch pipe 108 Sending pipe (1st pipe)
118 Pneumatic feeder (compressed air supply source)
132 Mist Separator (Compressed Air Purification Filter)
132A 1st mist separator (1st compressed air purification filter)
132B 2nd mist separator (2nd compressed air purification filter)
166 Drive motor (drive source)
160 Storage unit 172 1st pressure sensor 174 2nd pressure sensor 182 Cock (opening / closing member)
182A 1st cock 182B 2nd cock

Claims (12)

Multiple spinning units that generate yarn with swirling airflow,
A first pipe in which compressed air supplied from one end side flows from the other end side toward the plurality of spinning units.
A second pipe connected to a compressed air supply source for supplying compressed air to the plurality of spinning units and to which compressed air is supplied from one end side by the compressed air supply source.
After branching from the other end side of the second pipe, a plurality of third pipes connected to one end side of the first pipe and a plurality of third pipes.
A plurality of compressed air purifying filters provided in each of the plurality of the third pipes,
An air spinning machine characterized by being equipped with. The air spinning machine according to claim 1.
An air spinning machine characterized in that the capacity of each of the plurality of compressed air purifying filters is not more than twice the total supply flow rate of compressed air supplied from the compressed air supply source. The air spinning machine according to claim 1 or 2.
An air spinning machine characterized in that the capacity of each of the plurality of compressed air purifying filters is 1000 L / min or more and 20000 L / min or less. The air spinning machine according to any one of claims 1 to 3.
A first pressure sensor that detects the pressure in the first pipe and
A second pressure sensor that detects the pressure in the second pipe and
An air spinning machine characterized by being equipped with. The air spinning machine according to any one of claims 1 to 4.
An air spinning machine characterized in that each of the plurality of compressed air cleaning filters is a mist separator. The air spinning machine according to any one of claims 1 to 5.
The plurality of compressed air cleaning filters include a first compressed air cleaning filter and a second compressed air cleaning filter arranged adjacent to each other.
The first compressed air cleaning filter and the second compressed air cleaning filter are arranged along a virtual horizontal plane.
The first compressed air cleaning filter is arranged in the middle of a straight portion parallel to the virtual horizontal plane of the third pipe.
An air spinning machine characterized in that the first compressed air purifying filter is arranged so as to overlap with the second compressed air purifying filter when viewed along the straight portion. The air spinning machine according to any one of claims 1 to 6.
A drive source for driving the drive member of the spinning unit and
A storage unit that stores the drive source and
With
An air spinning machine, wherein the plurality of compressed air cleaning filters are housed in the storage unit. The air spinning machine according to any one of claims 1 to 7.
An air spinning machine characterized in that the plurality of compressed air cleaning filters are members of the same type. The air spinning machine according to any one of claims 1 to 8.
An air spinning machine characterized in that the number of the spinning units is 48 or more. The air spinning machine according to any one of claims 1 to 9.
An air spinning machine characterized in that the number of the plurality of compressed air purifying filters is 2 or more and 4 or less. The air spinning machine according to any one of claims 1 to 10.
An air spinning machine comprising a plurality of opening / closing members that change the opening / closing state on the upstream side of each of the third pipes on the upstream side of the compressed air cleaning filter. The air spinning machine according to any one of claims 1 to 11.
The spinning unit
Fiber guide section that guides fiber bundles,
A nozzle block that forms a spinning chamber into which the fiber bundle guided from the fiber guide portion is introduced, and also forms a nozzle through which compressed air injected to generate a swirling air flow is passed through the spinning chamber, and a nozzle block. ,
A hollow guide shaft body that guides the fiber bundle that has passed through the spinning chamber to the outside.
An air spinning machine characterized by comprising an air spinning device having the above.

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