Spinning machine

Abstract

A spinning machine that can reduce the pressure of compressed air supplied from a compressed air supply source is provided. An air spinning machine (1) includes: a spinning unit (2) that generates a yarn (Y) and winds the yarn around a package (P); an introduction pipe (101) through which compressed air supplied from a compressed air supply source (20) flows; a spinning pipe (102) through which spinning air supplied to the spinning unit flows; a first regulator (120) that is connected to the introduction pipe and the spinning pipe and reduces the pressure of the compressed air supplied from the introduction pipe and discharges it to the spinning pipe; an introduction branch pipe (103) through which compressed air supplied from the compressed air supply source flows; a boosting device (130) that is connected to the introduction branch pipe and boosts the compressed air supplied from the introduction branch pipe; and a pilot pipe (104) through which the compressed air boosted by the boosting device flows into a pilot port (123) of the first regulator.

Description

Technical Field

[0001] The present invention relates to a spinning machine. Background Art

[0002] As a technology related to a conventional spinning machine, for example, a ring spinning frame described in Japanese Patent Laid-Open No. 2013-067882 (Patent Document 1) is well known. The ring spinning frame described in Patent Document 1 includes: a machine body having a plurality of spinning units and a drive end box disposed at an end of the machine body. Compressed air is supplied from a compressed air supply source to the drive end box. An air supply unit that appropriately adjusts the compressed air and supplies it to each part of the ring spinning frame is disposed in the drive end box. The air supply unit has a regulator for adjusting the pressure of the compressed air. The compressed air adjusted to an appropriate air pressure by the air supply unit is supplied to each part of the ring spinning frame via a pipe or a tube.

[0003] In the above technology, under the requirement of energy saving, for example, in order to reduce power consumption, it is desired to reduce the pressure of the compressed air supplied from the compressed air supply source. Summary of the Invention

[0004] An object of one aspect of the present invention is to provide a spinning machine capable of reducing the pressure of the compressed air supplied from a compressed air supply source.

[0005] The spinning machine according to one aspect of the present invention includes: a spinning unit that generates a yarn and winds the yarn into a package; a first pipe that allows the compressed air supplied from a compressed air supply source to flow; a second pipe that allows the spinning air supplied to the spinning unit to flow; a first regulator that is connected to the first pipe and the second pipe, reduces the pressure of the compressed air supplied from the first pipe, and discharges it to the second pipe; a third pipe that allows the compressed air supplied from the compressed air supply source to flow; a booster device that is connected to the third pipe and boosts the compressed air supplied from the third pipe; and a fourth pipe that allows the compressed air boosted by the booster device to flow into a pilot port of the first regulator.

[0006] As the pressure of the compressed air flowing into the pilot port (hereinafter, also referred to as "pilot supply pressure"), a pressure equal to or higher than a constant value corresponding to the pressure of the spinning air is required. In this regard, in the spinning machine according to one aspect of the present invention, the compressed air from the compressed air supply source does not directly flow into the pilot port of the first regulator as it is, but flows into the pilot port after being boosted by the booster device. Therefore, the pilot supply pressure equal to or higher than the constant value can be obtained from the compressed air boosted by the booster device, and the pilot supply pressure is less likely to depend on the pressure of the compressed air supplied from the compressed air supply source. As a result, the pressure of the compressed air supplied from the compressed air supply source can be reduced.

[0007] In the spinning machine according to one aspect of the present invention, the first regulator is an externally piloted regulator and has: a pilot chamber that communicates with a pilot port; a partition plate that forms a wall portion of the pilot chamber; and a pressure regulating spring that applies a force to the partition plate. In this case, a structure that achieves the above-described effects can be specifically realized.

[0008] Alternatively, the spinning machine according to one aspect of the present invention may include a demister provided in the fourth pipe, and the demister removes particulate matter in the compressed air flowing through the fourth pipe. Thereby, the compressed air pressurized by the pressurizing device can be supplied to the first regulator after removing foreign substances.

[0009] Alternatively, the spinning machine according to one aspect of the present invention may include a pressure gauge that measures the pressure of the compressed air flowing into the pilot port, that is, the pilot supply pressure. In this case, it is possible to more easily confirm whether the pressurizing device is functioning normally through the pressure gauge.

[0010] Alternatively, the spinning machine according to one aspect of the present invention may include a reporting unit that reports when the pilot supply pressure measured by the pressure gauge is less than a specified pressure. In this case, it is possible to easily identify an abnormality of the pressurizing device through the reporting unit.

[0011] Alternatively, the spinning machine according to one aspect of the present invention may include: a second regulator provided in the fourth pipe, compressed air supplied from a compressed air supply source flows through the third pipe, the compressed air is pressurized by a pressurizing device, the pressurized compressed air flows through the fourth pipe, and is decompressed by the second regulator. In this case, the pilot supply pressure can be adjusted to a more appropriate pressure by the second regulator.

[0012] Alternatively, in the spinning machine according to one aspect of the present invention, regarding the inner diameter of the fourth pipe, the downstream side is relatively smaller than the upstream side of the second regulator, or the upstream side and the downstream side of the second regulator are the same. Thereby, it is possible to reduce the pressure loss when the compressed air flows through the fourth pipe.

[0013] Alternatively, in the spinning machine according to one aspect of the present invention, only the fourth pipe is connected to the outlet side of the pressurizing device. In this case, the pressurizing device can be made a dedicated device for obtaining the pilot supply pressure, and it is possible to easily adjust the pressure of the compressed air to an optimal pressure as the pilot supply pressure by the pressurizing device.

[0014] Alternatively, in the spinning machine according to one aspect of the present invention, a fourth pipe and a fifth pipe for supplying the pressurized compressed air to other devices are connected to the outlet side of the pressurizing device. In this case, the pressurizing device can not only be used as a device for obtaining the pilot supply pressure, but also be used as a device for supplying compressed air to other devices, which can simplify the overall structure of the spinning machine. Since the number of pressurizing devices in the spinning machine does not increase, an increase in the cost of the spinning machine itself can also be avoided.

[0015] Alternatively, in the spinning machine according to one aspect of the present invention, the other device is a work cart. Thus, the compressed air pressurized by the pressurizing device can be supplied to the work cart.

[0016] Alternatively, in the spinning machine according to one aspect of the present invention, the work cart has a yarn splicing device and a suction nozzle. In this case, in the work cart, the yarn splicing operation can be performed using the compressed air pressurized by the pressurizing device.

[0017] Alternatively, in the spinning machine according to one aspect of the present invention, the work cart has a doffing device. In this case, in the work cart, the doffing operation can be performed using the compressed air pressurized by the pressurizing device.

[0018] Alternatively, in the spinning machine according to one aspect of the present invention, the pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve, and the fourth pipe and the fifth pipe are connected to the tank. In this case, the pressurizing device can stably supply the pressurized compressed air.

[0019] Alternatively, in the spinning machine according to one aspect of the present invention, the pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve. In this case, the pressurizing device can stably supply the pressurized compressed air.

[0020] Alternatively, the spinning machine according to one aspect of the present invention includes: a pressure display unit that displays the pressure value of the spinning air. In this case, it is possible to more easily confirm whether the pressure of the spinning air is normal through the pressure display unit.

[0021] Alternatively, in the spinning machine according to one aspect of the present invention, the spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body, and the second pipe is connected to the nozzle. Thus, the spinning air can be stably supplied to the nozzle of the spinning device.

[0022] Alternatively, in the spinning machine according to one aspect of the present invention, the upstream side of the third pipe is connected to the middle of the first pipe. In this case, compared with the case where the upstream side of the third pipe is directly connected to the compressed air supply source, for example, the length of the third pipe can be shortened, and the overall structure of the spinning machine can be compactly configured.

[0023] Alternatively, in the spinning machine according to one aspect of the present invention, the pressurizing device is arranged within the frame of the spinning machine. Thus, the pressurizing device can be protected by the frame.

[0024] Alternatively, in the spinning machine according to one aspect of the present invention, the pressurizing device is arranged outside the frame of the spinning machine. Thus, for example, an operator can easily access the pressurizing device.

[0025] According to one aspect of the present invention, a spinning machine capable of reducing the pressure of the compressed air supplied from a compressed air supply source can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a front view showing a spinning machine according to an embodiment.

[0027] Figure 2 is showing Figure 1 the side view of the spinning machine.

[0028] Figure 3 is showing Figure 1 the side cross-sectional view of the air spinning device and its peripheral structure.

[0029] Figure 4 is showing Figure 1 the structure diagram of the air supply part of the spinning machine.

[0030] Figure 5 is showing Figure 4 the cross-sectional view of the first regulator.

[0031] Figure 6 is showing Figure 4 the perspective view of the first regulator and its peripheral structure.

[0032] Figure 7 is to Figure 6 enlarge and show the perspective view of the first regulator and its peripheral structure.

[0033] Figure 8 is a diagram showing the structure of the air supply part of the spinning machine according to a modified example. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Hereinafter, with reference to the drawings, the embodiments will be described in detail. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and repeated descriptions are omitted.

[0035] As Figure 1As shown, an air spinning machine (spinning machine) 1 includes a plurality of spinning units 2, a yarn splicing carriage 3, a doffing carriage (not shown), a first end frame 4, and a second end frame (frame) 5. The plurality of spinning units 2 are arranged in a row. Each spinning unit 2 generates a yarn Y and winds it into a package P. When the yarn Y is cut in a certain spinning unit 2, or when the yarn Y breaks for some reason, the yarn splicing carriage 3 performs a yarn splicing operation at that spinning unit 2. When the package P becomes full in a certain spinning unit 2, the doffing carriage doffs the package P and supplies a new bobbin B to that spinning unit 2.

[0036] The first end frame 4 houses a recovery device for recovering fiber debris, yarn debris, etc. generated by the spinning unit 2.

[0037] The second end frame 5 houses an air supply unit 100 that adjusts the air pressure of the compressed air supplied to the air spinning machine 1 and supplies air to various parts of the air spinning machine 1, and a drive motor for supplying power to various parts of the spinning unit 2. An machine control device 5a, a display screen 5b, input keys 5c, and a pressure display unit 5d are provided on the second end frame 5. The machine control device 5a centrally manages and controls various parts of the air spinning machine 1. The display screen 5b can display information related to the setting content and / or status of the spinning unit 2. The operator can perform the setting operation of the spinning unit 2 by performing appropriate operations using the input keys 5c. The pressure display unit 5d at least displays the pressure value of the spinning air (compressed air) (described later). The pressure display unit 5d is not particularly limited, and various known display units can be used as long as they can display the pressure value of the spinning air. The pressure display unit 5d may also be included in the display screen 5b.

[0038] For each spinning unit 2, in the traveling direction of the yarn Y, a drafting device 6, an air spinning device (spinning device) 7, a yarn monitoring device 8, a tension sensor 9, a yarn storage device 11, a waxing device 12, and a winding device 13 are provided in sequence from the upstream side. The unit controller 10 is provided for each specified number of spinning units 2 and controls the operation of the spinning unit 2. The unit controller 10 is composed of, for example, one or more computer devices. The unit controller 10 includes a CPU (Central Processing Unit) as a processor, a RAM (Random Access Memory) or a ROM (Read Only Memory) as a storage medium, etc. The unit controller 10 executes various controls by causing the CPU and hardware such as the RAM to read in programs.

[0039] The drafting device 6 drafts the sliver (fiber bundle) S. The air spinning device 7 twists the fiber bundle F drafted by the drafting device 6 by means of a swirling air flow to generate the yarn Y. The yarn monitoring device 8 monitors the yarn Y traveling between the air spinning device 7 and the yarn storage device 11, and detects whether there are any yarn defects. The detected yarn defects include excessive fuzzing. Also, it may include at least any one of, for example, knots, thick knots, colored yarn defects, abnormal count, weak twist yarns, and changes in yarn physical properties, etc. as yarn defects. When the yarn monitoring device 8 detects a yarn defect, it sends a yarn defect detection signal to the unit controller 10.

[0040] The tension sensor 9 measures the tension of the yarn Y traveling between the air spinning device 7 and the yarn storage device 11, and sends a tension measurement signal to the unit controller 10. When it is determined that there is an abnormality in the unit controller 10 based on the detection results of the yarn monitoring device 8 and / or the tension sensor 9, in the spinning unit 2, the yarn Y is cut off.

[0041] The yarn storage device 11 absorbs the slack of the yarn Y between the air spinning device 7 and the winding device 13. The waxing device 12 waxes the yarn Y between the yarn storage device 11 and the winding device 13. The winding device 13 winds the yarn Y onto the bobbin B to form a package P. The winding device 13 has a cradle arm 14, a winding drum 15, and a traverse mechanism 16. The cradle arm 14 supports the bobbin B so that it can rotate.

[0042] The yarn splicing trolley 3 is a work trolley that travels to the spinning unit 2 where the yarn Y is cut or split and performs a yarn splicing operation in the spinning unit 2. As Figure 2 shown, the yarn splicing trolley 3 has a yarn splicing device 3a, a suction nozzle 3b, and a suction port 3c. The yarn splicing device 3a is a splicing device that twists the yarn ends together by means of a swirling air flow. The yarn splicing device 3a is not limited to a splicing device, and for example, a mechanical knotter, etc. can also be used.

[0043] The suction nozzle 3b can suck in and capture the yarn Y sent out from the air spinning device 7 by generating a suction air flow at its end. The suction port 3c can suck in and capture the yarn Y from the package P supported by the winding device 13 by generating a suction air flow at its end. The suction nozzle 3b and the suction port 3c respectively rotate in a state where they have captured the yarn Y, so as to guide the yarn Y to a position where it can be introduced into the yarn splicing device 3a. In such a yarn splicing trolley 3, the yarn Y from the air spinning device 7 guided by the suction nozzle 3b and the yarn Y from the package P guided by the suction port 3c are spliced by the yarn splicing device 3a. The yarn splicing trolley 3 can be operated using compressed air supplied from a later-described yarn splicing pipe 105. The structure of the yarn splicing trolley 3 is not particularly limited as long as it can perform a yarn splicing operation.

[0044] As Figure 3 shown, the air spinning device 7 includes a first support 51 and a second support 52. The first support 51 has a fiber guiding portion 53 and a nozzle block 54. The second support 52 has a hollow guiding shaft body 55. Figure 3 In the figure, for example, the fiber guiding portion 53 and the nozzle block 54 are shown as independent components, but the fiber guiding portion 53 and the nozzle block 54 may also be formed of one component (integrally formed).

[0045] The fiber guiding portion 53 guides the yarn sliver S drafted by the drafting device 6 toward the inside of the air spinning device 7. A fiber inlet 56 and guide needles 57 are provided in the fiber guiding portion 53. The yarn sliver S drafted by the drafting device 6 is introduced into the fiber guiding portion 53 from the fiber inlet 56, wound around the guide needles 57, and guided into the spinning chamber 59.

[0046] A plurality of nozzles 58 are formed in the nozzle block 54. The nozzle block 54, together with the fiber guiding portion 53 and the hollow guiding shaft body 55, forms a spinning chamber 59. The air spinning device 7 ejects spinning air (compressed air) supplied by a spinning pipe 102 described later from the nozzles 58 into the spinning chamber 59, and causes a swirling air flow to act on the yarn sliver S in the spinning chamber 59. In addition, the guide needles 57 may be omitted, and the downstream side of the fiber guiding portion 53 may have the function of the guide needles 57.

[0047] A yarn passage 60 is formed at the axial center of the hollow guiding shaft body 55. By the spinning air ejected from the nozzles 58, one end of the fibers of the yarn sliver S swings around the end of the hollow guiding shaft body 55. Thereafter, the yarn sliver S passes through the yarn passage 60 in the form of a yarn Y and is guided to the outside of the air spinning device 7 from a yarn outlet (not shown) on the downstream side.

[0048] As Figure 4 shown, the air supply unit 100 includes an introduction pipe (first pipe) 101, a spinning pipe (second pipe) 102, a demister 110, an introduction branch pipe (third pipe) 103, a first regulator 120, a booster device 130, a pilot pipe (fourth pipe) 104, a yarn connecting pipe (fifth pipe) 105, and a second regulator 140. The air supply unit 100 is disposed in the second end frame 5 of the air spinning machine 1.

[0049] The introduction pipe 101 is a pipe through which the compressed air supplied from the compressed air supply source 20 flows. Compressed air from the compressed air supply source 20 is introduced into the introduction pipe 101. As the introduction pipe 101, its specifications, shape, length, material, etc. are not particularly limited. For example, it may be a high-rigidity pipe or a flexible pipe (the same applies to the following other pipes).

[0050] The compressed air supply source 20 is installed at a specified location (such as a factory) where the air spinning machine 1 is installed. In the present embodiment, the compressed air supply source 20 is installed outside the air spinning machine 1 independently of the air spinning machine 1. The compressed air supply source 20 includes an air compressor 21 and an air tank 22. The air compressor 21 compresses air. The air compressor 21 is, for example, an electric compressor that pressurizes and discharges air by driving an electric motor. The air tank 22 temporarily stores the compressed air compressed by the air compressor 21. An inlet pipe 101 is connected to the air tank 22. Thus, the compressed air in the air tank 22 is supplied to the air spinning machine 1 via the inlet pipe 101. In addition, not only the inlet pipe 101 of the air spinning machine 1 is connected to the air tank 22, but also the inlet pipes of other air spinning machines are connected, and the compressed air is supplied to other air spinning machines via this inlet pipe. Alternatively, an inlet pipe of other fiber machines may be connected to the air tank 22.

[0051] The spinning pipe 102 is a pipe through which the compressed air, i.e., the spinning air, supplied to the spinning unit 2 flows. The spinning pipe 102 includes a straight pipe 102x extending along the arrangement direction of each spinning unit 2. A plurality of unit pipes 114 are connected to the straight pipe 102x. The spinning air in the spinning pipe 102 flows into each spinning unit 2 via the straight pipe 102x and each unit pipe 114. The unit pipes 114 are provided in the same number as the number of spinning units 2, and one unit pipe 114 is provided for each spinning unit 2. The unit pipe 114 corresponding to each spinning unit 2 is connected to the straight pipe 102x on the upstream side and to the nozzle 58 of the air spinning device 7 of this spinning unit 2 (refer to Figure 3 ) for connection.

[0052] The demister 110 is provided in the middle of the inlet pipe 101. The demister 110 separates and removes particulate matter in the compressed air flowing through the inlet pipe 101 from the compressed air. There is no particular limitation on the demister 110, and various known demisters can be used.

[0053] The inlet branch pipe 103 is a pipe branched from the inlet pipe 101 and is a pipe through which the compressed air supplied from the compressed air supply source 20 flows. The upstream side of the inlet branch pipe 103 is connected to the middle of the inlet pipe 101 (in the illustrated example, on the downstream side of the demister 110).

[0054] As Figure 5 shown, the first regulator 120 is connected to the downstream side of the inlet pipe 101 and the upstream side of the spinning pipe 102. The first regulator 120 reduces the pressure of the compressed air in the inlet pipe 101 and causes the compressed air to flow out as spinning air into the spinning pipe 102. The first regulator 120 is arranged inside the second end frame 5 (refer to Figure 6)。The first regulator 120 is an externally piloted regulator and has an inlet port 121, an outlet port 122, a pilot port 123, a pilot chamber 124, a pilot-side partition (partition) DX, a pilot valve 125, a pressure regulating spring 126, a pressure regulating handle 127, a main valve 128, a partition chamber 129, and a main-valve-side partition DY.

[0055] The downstream side of the introduction pipe 101 is fixed to the inlet port 121. The upstream side of the spinning pipe 102 is fixed to the outlet port 122. The downstream side of the pilot pipe 104 is fixed to the pilot port 123. The pilot chamber 124 is a space communicating with the pilot port 123. The pilot-side partition DX is a film-like member constituting the wall portion of the pilot chamber 124. The pilot valve 125 is a valve provided between the pilot port 123 and the pilot chamber 124.

[0056] The pressure regulating spring 126 is a spring that applies a force to the pilot-side partition DX. The pressure regulating handle 127 is a handle that can rotate about a rotation axis G. By rotating the pressure regulating handle 127, the acting force of the pressure regulating spring 126 is adjusted, and the first regulator 120 adjusts the pressure of the spinning air flowing out. The main valve 128 is a valve provided on the flow path PA communicating from the inlet port 121 to the outlet port 122. The partition chamber 129 is a space communicating with the outlet port 122 side of the flow path PA via a feedback hole FH. The main-valve-side partition DY is a film-like member constituting the wall portion of the partition chamber 129.

[0057] In such a first regulator 120, the pressure (pilot supply pressure) from the pilot port 123 side is introduced into the pilot chamber 124, and the pressure in the pilot chamber 124 opposes the acting force of the pressure regulating spring 126 and reaches a balanced state. Moreover, by the pressure in the pilot chamber 124, the main valve 128 is pressed open via the main-valve-side partition DY, and the pressure is guided toward the outlet port 122 side. At the same time, the pressure is introduced into the partition chamber 129 via the feedback hole FH, and the pressure of the spinning air flowing out from the outlet port 122 is set.

[0058] As Figure 4 shown, the pressurizing device 130 is connected to the introduction branch pipe 103. The pressurizing device 130 is a device that pressurizes the compressed air from the introduction branch pipe 103. The pressurizing device 130 includes a pressurizing valve 131 and an air tank (tank) 132 connected to the outlet side of the pressurizing valve 131. The pressurizing valve 131 pressurizes the compressed air. The air tank 132 temporarily stores the compressed air pressurized by the pressurizing valve 131. There is no particular limitation on the pressurizing valve 131 and the air tank 132, and various known pressurizing valves and air tanks can be used. The air tank 132 can also be omitted. The upstream side of the pilot pipe 104 and the upstream side of the yarn connecting pipe 105 are connected to the air tank 132 (in other words, the outlet side of the pressurizing device 130). AsFigure 6 As shown, the pressurizing device 130 is disposed inside the second end frame 5.

[0059] The pilot pipe 104 is a pipe that allows the compressed air pressurized by the pressurizing device 130 to flow into the pilot port 123. The yarn connecting pipe 105 supplies the compressed air pressurized by the pressurizing device 130 to the yarn connecting carriage 3.

[0060] As Figure 6 and Figure 7 As shown, the second regulator 140 is provided in the pilot pipe 104. The second regulator 140 is a regulator that reduces the pressure of the compressed air flowing through the pilot pipe 104. The second regulator 140 is a direct-acting regulator. The second regulator 140 is held on one side of the first regulator 120 by the support plate 142 in the horizontal direction (i.e., the specified direction) orthogonal (crossing) to the rotation axis G of the pressure adjustment handle 127 of the first regulator 120.

[0061] The support plate 142 has a curved plate shape. The support plate 142 has a horizontal portion 142a and a vertical portion 142b that bends downward from the horizontal portion 142a and is continuous with the horizontal portion 142a. In the illustrated example, the support plate 142 is fixed to the introduction pipe 101. When viewed from one side in the specified direction, the support plate 142 shields at least a part of the second regulator 140. That is, the second regulator 140 is disposed at the corner formed by the horizontal portion 142a and the vertical portion 142b, and a part of the second regulator 140 is covered by the support plate 142.

[0062] The second regulator 140 has a pressure adjustment knob 144 for adjusting the pressure of the decompressed compressed air. The pressure adjustment knob 144 is provided to penetrate outward from the support plate 142. Regarding the inner diameter of the pilot pipe 104 provided with such a second regulator 140, the downstream side is relatively smaller than the upstream side of the second regulator 140. In other words, the portion of the pilot pipe 104 connected to the outlet side of the second regulator 140 is smaller than the portion of the pilot pipe 104 connected to the inlet side of the second regulator 140.

[0063] As described above, in the air spinning machine 1, as the pilot supply pressure of the first regulator 120, a pressure equal to or higher than a constant value corresponding to the pressure of the spinning air is required. For example, when the pressure of the spinning air is 0.5 MPa, a pilot supply pressure of 0.6 MPa (differential pressure of 0.1 MPa) or higher is required. In this regard, in the air spinning machine 1, the compressed air from the compressed air supply source 20 does not flow directly into the pilot port 123 of the first regulator 120 as it is, but flows into the pilot port 123 after being pressurized by the pressurizing device 130. Therefore, a pilot supply pressure equal to or higher than this constant value compared to the compressed air pressurized by the pressurizing device 130 can be obtained. The pilot supply pressure is less likely to depend on the pressure of the compressed air supplied by the compressed air supply source 20. As a result, compared with the case where the compressed air from the compressed air supply source 20 flows directly into the pilot port 123 as it is, the pressure of the compressed air supplied by the compressed air supply source 20 can be reduced.

[0064] In addition, in the air spinning machine 1, the first regulator 120 is a regulator with a large capacity, but the consumption flow rate of the compressed air flowing into its pilot port 123 can be very small. In the air spinning machine 1, even if the pressure of the compressed air from the compressed air supply source 20 changes, the pilot side partition DX can be stably operated, and the change in the pressure of the spinning air can be reduced.

[0065] In the air spinning machine 1, the first regulator 120 is an externally piloted regulator and has a pilot chamber 124 communicating with the pilot port 123, a pilot side partition DX forming the wall portion of the pilot chamber 124, and a pressure regulating spring 126 that applies a force to the pilot side partition DX. In this case, a structure that can achieve the above effects can be specifically realized.

[0066] The air spinning machine 1 is provided with a second regulator 140. The second regulator 140 is provided in the pilot pipe 104 and reduces the pressure of the compressed air flowing in the pilot pipe 104. The compressed air supplied from the compressed air supply source 20 flows in the introduction branch pipe 103, is pressurized by the pressurizing device 130, and the pressurized compressed air flows in the pilot pipe 104 and is reduced in pressure by the second regulator 140. In this case, the pilot supply pressure can be adjusted to a more appropriate pressure by the second regulator 140. Moreover, in this case, the second regulator 140 can prevent the pilot supply pressure from becoming too high, and can prevent the change in the pressure of the spinning air from becoming large due to the too high pilot supply pressure.

[0067] In the air spinning machine 1, the first regulator 120 has a pressure regulating handle 127 that can rotate about the rotation axis G as a base axis. The second regulator 140 is held on one side of the first regulator 120 by a support plate 142 in a specified direction orthogonal to the rotation axis G. When viewed from one side in this specified direction, the support plate 142 blocks at least a part of the second regulator 140. Thereby, the first regulator 120 can be arranged such that it is not easy for the user to touch the pressure regulating handle 127 of the first regulator 120, and the second regulator 140 can be arranged such that the second regulator 140 is blocked by the support plate 142 on the side of the first regulator 120. That is, the second regulator 140 can be arranged so that it is not easy for the user to touch it.

[0068] In the air spinning machine 1, regarding the inner diameter of the pilot pipe 104, the downstream side is relatively smaller than the upstream side of the second regulator 140. Thereby, the pressure loss when compressed air flows through the pilot pipe 104 can be reduced. In addition, for example, when the inner diameter of the pilot pipe 104 is of a sufficient size, etc., the inner diameter of the pilot pipe 104 can also be the same on the upstream side and the downstream side of the second regulator 140.

[0069] In the air spinning machine 1, the pilot pipe 104 and the yarn connecting pipe 105 are connected to the outlet side of the pressurizing device 130. In this case, the compressed air pressurized by the pressurizing device 130 can be supplied to the yarn connecting trolley 3. The pressurizing device 130 can not only be used as a device for obtaining the pilot supply pressure, but also be used as a device for supplying compressed air to various devices of the yarn connecting trolley 3, and the overall structure of the air spinning machine 1 can be simplified. Since the number of pressurizing devices 130 in the air spinning machine 1 does not increase, an increase in the cost of the air spinning machine 1 itself can also be avoided. In the yarn connecting trolley 3, the yarn connecting operation can be performed using the compressed air pressurized by the pressurizing device 130.

[0070] In the air spinning machine 1, the pressurizing device 130 includes a pressurizing valve 131 and an air tank 132. The pilot pipe 104 and the yarn connecting pipe 105 are connected to the air tank 132. In this case, the pressurizing device 130 can stably supply the pressurized compressed air.

[0071] The air spinning machine 1 is provided with a pressure display unit 5d that displays the pressure value of the spinning air. In this case, it is possible to easily confirm whether the pressure of the spinning air is normal through the pressure display unit 5d.

[0072] In the air spinning machine 1, the spinning unit 2 includes an air spinning device 7 having a fiber guiding portion 53, a nozzle 58, and a hollow guiding shaft body 55. The spinning pipe 102 is connected to the nozzle 58. Thereby, spinning air can be stably supplied to the nozzle 58 of the air spinning device 7.

[0073] In the air spinning machine 1, the upstream side of the introduction branch pipe 103 is connected to the middle of the introduction pipe 101. In this case, compared with the case where the upstream side of the introduction branch pipe 103 is directly connected to the compressed air supply source 20, for example, the length of the introduction branch pipe 103 can be shortened, and the overall structure of the air spinning machine 1 can be compactly formed.

[0074] Figure 8 FIG. is a diagram showing the structure of the air supply unit 100 of the spinning machine according to the modified example. As Figure 8 shown, a demister 150 and a pressure gauge 160 may also be provided in the pilot pipe 104. The demister 150 removes particulate matter in the compressed air flowing through the pilot pipe 104. The demister 150 is not particularly limited, and various known demisters can be used. By the demister 150, the compressed air pressurized by the pressurizing device 130 can be supplied to the first regulator 120 after removing foreign matters. In the illustrated example, the demister 150 is provided upstream of the second regulator 140.

[0075] The pressure gauge 160 is a device for measuring the pilot supply pressure. In the illustrated example, the pressure gauge 160 is provided in the pilot pipe 104 downstream of the second regulator 140. The pressure gauge 160 is not particularly limited, and various known pressure gauges can be used. By the pressure gauge 160, it is possible to easily confirm whether the pressurizing device 130 is functioning properly.

[0076] It may also be that when the air spinning machine 1 is equipped with the pressure gauge 160, a report is made via the display screen 5b when the pilot supply pressure measured by the pressure gauge 160 is less than the specified pressure. In other words, it may be that the air spinning machine 1 is equipped with the display screen 5b as a reporting unit. The reporting unit is not limited to the display screen 5b, and may be, for example, a lamp (not shown) provided on the air spinning machine 1. It may also be that in this case, when the pilot supply pressure measured by the pressure gauge 160 is less than the specified pressure, a report is made by lighting or flashing the lamp. The specified pressure is determined in advance based on, for example, the pressure required for the spinning air. In this case, the user can easily identify the abnormality of the pressurizing device 130 through the display screen 5b and / or the lamp. In addition, it may be that when the air spinning machine 1 is equipped with the pressure gauge 160, the pilot supply pressure is monitored, and the optimal pilot supply pressure is automatically presented (displayed) via the display screen 5b, for example.

[0077] In addition, in the present embodiment, the compressed air pressurized by the pressurizing device 130 is not only used for obtaining the pilot supply pressure but also serves as the driving source for the yarn splicing carriage 3. Therefore, the pressurizing device 130 is not set only for obtaining the pilot supply pressure. Thus, the effect of being able to adjust the pilot supply pressure by the second regulator 140 is effective. Incidentally, a valve may be provided in at least any one of the introduction pipe 101, the spinning pipe 102, the introduction branch pipe 103, the pilot pipe 104, and the yarn splicing pipe 105. This valve can be appropriately controlled to open and close by the machine control device 5a, for example.

[0078] As described above, the embodiments and the modified examples have been described, but one aspect of the present invention is not limited to the above-described embodiments and modified examples.

[0079] In the above-described embodiments and modified examples, the first regulator 120 is provided at the Figure 6 and Figure 7 shown positions, but the position where the first regulator 120 is provided is not limited to the illustrated positions. The first regulator 120 may be provided near the pressure display unit 5d, for example.

[0080] In the above-described embodiments and modified examples, the inner diameter of the spinning pipe 102 on the side of the first regulator 120 may be smaller than the inner diameter of the introduction pipe 101 on the side of the first regulator 120. Thereby, the pressure loss when the compressed air flows through the spinning pipe 102 from the introduction pipe 101 via the first regulator 120 can be reduced. However, for example, when the inner diameters of the introduction pipe 101 and the spinning pipe 102 are large enough, the inner diameter of the spinning pipe 102 may be the same as the inner diameter of the introduction pipe 101.

[0081] In the above-described embodiments and modified examples, only the pilot pipe 104 may be connected to the outlet side (air tank 132) of the pressurizing device 130. In this case, the pressurizing device 130 can be made into a dedicated device for obtaining the pilot supply pressure, and it is possible to easily adjust the pressure of the compressed air to the optimum pressure as the pilot supply pressure by the pressurizing device 130. Moreover, in this case, the air spinning machine 1 may not include the second regulator 140.

[0082] In the above-described embodiments and modifications, the introduction branch pipe 103 branched from the introduction pipe 101 is provided as the third pipe. However, alternatively, the air spinning machine 1 may include another pipe that is connected to the air tank 22 of the compressed air supply source 20 and through which compressed air flows as the third pipe. For example, it may be that, independently of the introduction pipe 101, a third pipe with a relatively small flow rate is led out from the compressed air supply source 20, and a boosting device 130 and a pilot pipe 104 (fourth pipe) are connected to the third pipe. That is, a high-pressure pipeline of another system may be led out from the compressed air supply source 20 to the first regulator 120.

[0083] Alternatively, in the above-described embodiments and modifications, on the outlet side (air tank 132) of the boosting device 130, a pipe (fifth pipe) for supplying the compressed air boosted by the boosting device 130 to other devices is connected in place of the yarn splicing pipe 105, or a pipe (fifth pipe) for supplying the compressed air boosted by the boosting device 130 to other devices is connected in addition to the yarn splicing pipe 105.

[0084] The above-described other device that supplies the compressed air boosted by the boosting device 130 may be a doffing carriage. The doffing carriage is a work carriage having a doffing device. In this case, the compressed air boosted by the boosting device 130 can be supplied to the doffing carriage. Moreover, in this case, the boosting device 130 can not only be used as a device for obtaining the pilot supply pressure but also be used as a device for supplying compressed air to various devices of the doffing carriage. In the doffing carriage, the doffing operation can be performed using the compressed air boosted by the boosting device 130.

[0085] For example, the doffing carriage has a cradle opener, a bobbin holding device, and a yarn catching and guiding device (suction nozzle) as devices that use compressed air. The cradle opener is a device that operates the cradle of the winding device 13 when mounting the bobbin B on the winding device 13 or when removing the bobbin B (package P) from the winding device 13. The bobbin holding device is a device that holds and supplies a new bobbin B to the cradle of the winding device 13. The yarn catching and guiding device is a device that catches the yarn Y sent out from the air spinning device 7 and guides it to a new bobbin B.

[0086] The doffing carriage may also be equipped with at least one of a package plate and an operating rod as a device using compressed air. The package plate stops the inertial rotation of the package P before removing the package P from the winding device 13. In the operation of discharging the removed package P to the conveyor, the package plate supports the package P rolling on an inclined surface (not shown) of the air spinning machine 1 and guides the package P to the conveyor. The operating rod is a device for operating the doffing rod provided when the yarn storage device 11 is provided in the air spinning machine 1. The doffing rod moves to remove the yarn Y from the yarn hanging member of the yarn storage device 11 when temporarily discarding the yarn Y wound around the yarn storage roller of the yarn storage device 11 at the start of spinning. The structure of the doffing carriage is not particularly limited as long as it can perform the doffing operation.

[0087] In the above-described embodiments and modifications, each spinning unit 2 may also be provided with a yarn splicing device that twists the yarn ends together by a swirling air flow. In this case, the above-described other device that supplies compressed air pressurized by the pressurizing device 130 may also be this yarn splicing device. The above-described other device that supplies compressed air pressurized by the pressurizing device 130 is not particularly limited and may also be various other devices that utilize compressed air.

[0088] In the above-described embodiments and modifications, the first regulator 120 may also be an electric pneumatic regulator. In this case, the pressure of the spinning air can be automatically adjusted.

[0089] In the above-described embodiments and modifications, the second regulator 140 may also be an electric pneumatic regulator. In this case, the pilot supply pressure can be automatically adjusted.

[0090] In the above-described embodiments and modifications, the yarn storage device 11 of the spinning unit 2 has the function of drawing out the yarn Y from the air spinning device 7, but the yarn Y may also be drawn out from the air spinning device 7 by a conveying roller and a clamping roller. It may also be that, in the case where the yarn Y is drawn out from the air spinning device 7 by a conveying roller and a clamping roller, a loose tube that absorbs the slack of the yarn Y by an aspirating air flow or a mechanical tension adjusting roller or the like is provided instead of the yarn storage device 11.

[0091] In the above-described embodiments and modifications, the devices are arranged such that the yarn Y supplied from above in the height direction is wound below. However, the devices may also be arranged such that the yarn supplied from below is wound above.

[0092] In the above-described embodiments and modifications, at least one of the lower rollers of the drafting device 6 and the traversing mechanism 16 are driven by the power from the second end frame 5 (i.e., shared by the plurality of spinning units 2). However, it is also possible that each part of the spinning unit 2 (e.g., drafting device, air spinning device, winding device, etc.) is independently driven for each spinning unit 2.

[0093] In the above-described embodiments and modifications, it is also possible that, in the traveling direction of the yarn Y, the tension sensor 9 is disposed upstream of the yarn monitoring device 8. It is also possible that the unit controller 10 is provided for each spinning unit 2. It is also possible that, in the spinning unit 2, the waxing device 12 and the tension sensor 9 are omitted.

[0094] In the above-described embodiments and modifications, Figure 1 in, the rotor spinning machine 1 is illustrated in the form of a package P in the shape of a cheese, but the rotor spinning machine 1 can also wind a conical package. In the case of a conical package, slack of the yarn Y is generated due to the traversing of the yarn Y, but this slack can be absorbed by the yarn storage device 11. The materials and shapes of the respective structures are not limited to the above materials and shapes, and various materials and shapes can also be adopted.

[0095] In the spinning unit 2 of the above-described embodiments and modifications, two yarn ends are connected by the yarn splicing device 3a. However, instead of this, by inserting the yarn Y from the package P into the air spinning device 7 and starting the drafting operation of the drafting device 6 and the spinning operation of the air spinning device 7, the yarn Y from the air spinning device 7 is connected to the yarn Y of the package P (splicing is performed).

[0096] In the above-described embodiments and modifications, the air spinning device 7 may be provided with a pair of jet nozzles that twist the fiber bundle in opposite directions instead of the above structure.

[0097] In the above-described embodiments and modifications, the first regulator 120, the pressurizing device 130, and the second regulator 140 are disposed inside the second end frame 5 of the rotor spinning machine 1, but at least any one of them may be disposed outside the second end frame 5, or may be disposed on the outer surface of the second end frame 5.

[0098] The respective structures of the above-described embodiments and modifications are not limited to the above materials and shapes, and various materials and shapes can be applied. The respective structures of the above-described embodiments or modifications can be arbitrarily applied to the respective structures of other embodiments or modifications. A part of the respective structures of the above-described embodiments or modifications can be appropriately omitted without departing from the gist of one aspect of the present invention.

Claims

1. A spinning machine, characterized in that, Comprising: A spinning unit that generates yarn and winds the yarn into a package; A first pipe that allows compressed air supplied from a compressed air supply source to flow through; A second pipe that allows spinning air supplied to the spinning unit to flow through; A first regulator that is connected to the first pipe and the second pipe, reduces the pressure of the compressed air supplied from the first pipe, and discharges it to the second pipe; A third pipe that branches off from the first pipe and allows the compressed air supplied from the compressed air supply source to flow through; A boosting device that is connected to the third pipe and boosts the compressed air supplied from the third pipe; And A fourth pipe that allows the compressed air boosted by the boosting device to flow into the pilot port of the first regulator, The upstream side of the third pipe is connected to the middle of the first pipe.

2. The spinning machine according to claim 1, wherein The first regulator is an externally piloted regulator and has: A pilot chamber that communicates with the pilot port; A partition that forms the wall of the pilot chamber; and A pressure regulating spring that applies a force to the partition.

3. The spinning machine according to claim 1, wherein An air defogger is provided, and the air defogger is provided in the fourth pipe and removes particulate matter in the compressed air flowing through the fourth pipe.

4. The spinning machine according to claim 2, wherein An air defogger is provided, and the air defogger is provided in the fourth pipe and removes particulate matter in the compressed air flowing through the fourth pipe.

5. The spinning machine according to any one of claims 1 to 4, wherein A pressure gauge is provided, and the pressure gauge measures the pressure of the compressed air flowing into the pilot port, that is, the pilot supply pressure.

6. The spinning machine according to claim 5, wherein A reporting unit is provided, and the reporting unit reports when the pilot supply pressure measured by the pressure gauge is less than a specified pressure.

7. The spinning machine according to any one of claims 1 to 4, 6, wherein A second regulator provided in the fourth pipe is provided, The compressed air supplied from the compressed air supply source flows through the third pipe, the compressed air is boosted by the boosting device, the boosted compressed air flows through the fourth pipe, and is reduced in pressure by the second regulator.

8. The spinning machine according to claim 5, wherein A second regulator provided in the fourth pipe is provided, The compressed air supplied from the compressed air supply source flows through the third pipe, the compressed air is boosted by the boosting device, the boosted compressed air flows through the fourth pipe, and is reduced in pressure by the second regulator.

9. The spinning machine according to claim 7, wherein Regarding the inner diameter of the fourth pipe, the downstream side is relatively smaller than the upstream side of the second regulator, or the upstream side and the downstream side of the second regulator are the same.

10. The spinning machine according to claim 8, wherein Regarding the inner diameter of the fourth pipe, the downstream side is relatively smaller than the upstream side of the second regulator, or the upstream side and the downstream side of the second regulator are the same.

11. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, characterized in that Only the fourth pipe is connected to the outlet side of the pressurizing device.

12. The spinning machine according to claim 5, characterized in that Only the fourth pipe is connected to the outlet side of the pressurizing device.

13. The spinning machine according to claim 7, characterized in that Only the fourth pipe is connected to the outlet side of the pressurizing device.

14. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, characterized in that The fourth pipe and a fifth pipe for supplying the pressurized compressed air to other devices are connected to the outlet side of the pressurizing device.

15. The spinning machine according to claim 5, characterized in that The fourth pipe and a fifth pipe for supplying the pressurized compressed air to other devices are connected to the outlet side of the pressurizing device.

16. The spinning machine according to claim 7, characterized in that The fourth pipe and a fifth pipe for supplying the pressurized compressed air to other devices are connected to the outlet side of the pressurizing device.

17. The spinning machine according to claim 14, characterized in that The other device is a work cart.

18. The spinning machine according to claim 15, characterized in that The other device is a work cart.

19. The spinning machine according to claim 16, characterized in that The other device is a work cart.

20. The spinning machine according to any one of claims 17 to 19, characterized in that The work cart has a yarn splicing device and a nozzle.

21. The spinning machine according to any one of claims 17 to 19, characterized in that The work cart has a doffing device.

22. The spinning machine according to claim 20, characterized in that The work cart has a doffing device.

23. The spinning machine according to any one of claims 15 to 19, 22, characterized in that The pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve, The fourth pipe and the fifth pipe are connected to the tank.

24. The spinning machine according to claim 14, characterized in that The pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve, The fourth pipe and the fifth pipe are connected to the tank.

25. The spinning machine according to claim 20, characterized in that The pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve, The fourth pipe and the fifth pipe are connected to the tank.

26. The spinning machine according to claim 21, characterized in that The pressurizing device includes a pressure increasing valve and a tank connected to the outlet side of the pressure increasing valve, The fourth pipe and the fifth pipe are connected to the tank.

27. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, 12 to 13, 15 to 19, 22, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

28. The spinning machine according to claim 5, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

29. The spinning machine according to claim 7, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

30. The spinning machine according to claim 11, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

31. The spinning machine according to claim 14, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

32. The spinning machine according to claim 20, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

33. The spinning machine according to claim 21, wherein the pressurizing device includes a pressure - increasing valve and a tank connected to the outlet side of the pressure - increasing valve.

34. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, 12 to 13, 15 to 19, 22, 24 to 26, 28 to 33, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

35. The spinning machine according to claim 5, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

36. The spinning machine according to claim 7, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

37. The spinning machine according to claim 11, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

38. The spinning machine according to claim 14, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

39. The spinning machine according to claim 20, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

40. The spinning machine according to claim 21, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

41. The spinning machine according to claim 23, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

42. The spinning machine according to claim 27, wherein it is provided with a pressure display unit for displaying the pressure value of the spinning air.

43. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, 12 to 13, 15 to 19, 22, 24 to 26, 28 to 33, 35 to 42, wherein the spinning unit is provided with a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body, the second pipe is connected to the nozzle.

44. The spinning machine according to claim 5, wherein The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

45. The spinning machine according to claim 7, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

46. The spinning machine according to claim 11, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

47. The spinning machine according to claim 14, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

48. The spinning machine according to claim 20, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

49. The spinning machine according to claim 21, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

50. The spinning machine according to claim 23, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

51. The spinning machine according to claim 27, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

52. The spinning machine according to claim 34, characterized in that The spinning unit includes: a spinning device having a fiber guiding portion, a nozzle, and a hollow guiding shaft body. The second pipe is connected to the nozzle.

53. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, 12 to 13, 15 to 19, 22, 24 to 26, 28 to 33, 35 to 42, 44 to 52, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

54. The spinning machine according to claim 5, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

55. The spinning machine according to claim 7, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

56. The spinning machine according to claim 11, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

57. The spinning machine according to claim 14, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

58. The spinning machine according to claim 20, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

59. The spinning machine according to claim 21, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

60. The spinning machine according to claim 23, characterized in that The pressurizing device is arranged within the frame of the spinning machine.

61. The spinning machine according to claim 27, wherein the pressurizing device is arranged within the frame of the spinning machine.

62. The spinning machine according to claim 34, wherein the pressurizing device is arranged within the frame of the spinning machine.

63. The spinning machine according to claim 43, wherein the pressurizing device is arranged within the frame of the spinning machine.

64. The spinning machine according to any one of claims 1 to 4, 6, 8 to 10, 12 to 13, 15 to 19, 22, 24 to 26, 28 to 33, 35 to 42, 44 to 52, wherein the pressurizing device is arranged outside the frame of the spinning machine.

65. The spinning machine according to claim 5, wherein the pressurizing device is arranged outside the frame of the spinning machine.

66. The spinning machine according to claim 7, wherein the pressurizing device is arranged outside the frame of the spinning machine.

67. The spinning machine according to claim 11, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

68. The spinning machine according to claim 14, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

69. The spinning machine according to claim 20, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

70. The spinning machine according to claim 21, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

71. The spinning machine according to claim 23, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

72. The spinning machine according to claim 27, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

73. The spinning machine according to claim 34, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

74. The spinning machine according to claim 43, characterized in that, The pressurizing device is arranged outside the frame of the spinning machine.

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