JP3826558B2 - Air supply system for spinning machines - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air supply system in a spinning machine for supplying suction air or compressed air required for yarn splicing work or doffing work.
[0002]
[Prior art]
Conventionally, a yarn splicing member, a doffing member, and a yarn splicing member disposed in each spinning unit of a spinning machine that runs along a spinning machine during a yarn splicing work or a doffing work, etc. In addition, as an air supply system in a spinning machine that supplies necessary suction air or compressed air (hereinafter simply referred to as “air”), an air supply device is provided in both the work carriage and the spinning machine. Are known.
[0003]
[Problems to be solved by the invention]
The conventional air supply system in a spinning machine is provided with an air supply device for supplying air necessary for yarn splicing work, doffing work, etc., in each work carriage and each spinning unit. There is a problem that the supply system is complicated and expensive.
[0004]
An object of the present invention is to provide an air supply system in a spinning machine that solves the problems of the conventional air supply system described above and has improved work efficiency and work accuracy such as yarn splicing work and doffing work. .
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention firstly operates in a spinning machine having a large number of spinning units and a work carriage that travels along the spinning units in relation to the work of the work carriage. Air is supplied to the working member installed on the spinning unit side from the working carriage. Second, the working member transfers the yarn wound around the package to the spinning unit using the yarn wound around the package as the parent yarn. Thirdly, the actuating member is a reverse injection nozzle for transferring the yarn wound around the package to the spinning unit as a parent yarn, and fourthly, The above-mentioned work cart performs the yarn splicing work and the doffing work.
[0006]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.
[0007]
First, an example of a spinning machine to which the air supply system in the spinning machine of the present invention is applied will be outlined with reference to FIG.
[0008]
Reference numeral 1 denotes a gear end box, and reference numeral 2 denotes an out-end box. A large number of spinning units 3 are arranged between the gear end box 1 and the out-end box 2. Reference numeral 4 denotes a work cart that performs a yarn splicing operation and a doffing operation while traveling while being guided by an appropriate rail 5 installed along the spinning unit 3, and 6 is for supplying air to the work cart 4. The air supply line has one end connected to the work carriage 4 and the other end connected to an air supply device disposed in the out-end box 2 or the like. The work carriage 4 is configured to travel along the spinning unit 3 and perform a yarn splicing operation or a doffing operation on the necessary spinning unit 3.
[0009]
In the present invention, the air supply line 6 including pipes from the air supply device is connected to the work carriage 4 and supplies air to the yarn splicing member and the doffing member disposed on the work carriage 4. As will be described later, air is supplied to the yarn splicing member and the doffing member disposed in the spinning unit 3 through the work carriage 4.
[0010]
Hereinafter, air supply means from the work carriage 4 to the spinning unit 3 will be described with reference to FIGS.
[0011]
Reference numeral 4a denotes an appropriate frame such as a ceiling of the work carriage 4, and an inverted U-shaped attachment frame 7 is attached to the frame 4a. A horizontal shaft 9 is attached to the vertical portions 7a and 7b of the mounting frame 7 arranged at a predetermined interval, and the horizontal shaft 9 has a bowl-like connection having an opening 8a in the central region. One end of the frame 8 is pivotally supported. Further, one end of a connecting lever 11 such as a turnbuckle is pivotally supported via a pin 10 below the horizontal shaft 9 of the longer vertical portion 7b. In FIG. 3, the frame 4a and the mounting frame 7 are omitted.
[0012]
Reference numeral 12 denotes an inverted U-shaped support frame. A horizontal shaft 13 is attached to the vertical portions 12a and 12b of the support frame 12 arranged at a predetermined interval. The other end of the connecting frame 8 described above is pivotally supported. Further, the other end of the connecting lever 11 described above is pivotally supported via a pin 14 below the horizontal shaft 13 of the longer vertical portion 12b. Further, an upper end portion of a drive lever 15 that can move up and down is pivotally supported on the pin 14 by a drive device (not shown). Therefore, the support frame 12 pivotally supported by one end of the connection frame 8 and the connection lever 11 is moved up and down by operating a drive device (not shown) appropriately and moving the drive lever 15 up and down. It is configured to be able to.
[0013]
A pair of column members 16 are erected on the horizontal portion 12c of the support frame 12 at a predetermined interval, and upper bearing holes 16a are respectively provided on the opposing surfaces of the column members 16 in the vertical direction. And the lower bearing hole 16b is formed. An upper horizontal shaft 17 is fitted in the upper bearing hole 16a of each column member 16, and the upper horizontal shaft 17 is between the outer peripheral surface of the upper horizontal shaft 17 and the inner peripheral surface of the upper bearing hole 16a. No substantial play is formed so as not to move in a direction perpendicular to the axis of the upper horizontal shaft 17. A lower horizontal shaft 18 is inserted into the lower bearing hole 16b of each column member 16, and a predetermined gap is formed between the outer peripheral surface of the lower horizontal shaft 18 and the inner peripheral surface of the lower bearing hole 16b. The lower horizontal shaft 18 is configured to be movable in a direction orthogonal to the axis of the lower horizontal shaft 18. The lower horizontal shaft 18 can be configured to move in the axial direction of the lower horizontal shaft 18.
[0014]
Reference numeral 19 denotes a housing member having horizontal holes 19a and 19b into which the above-described upper horizontal shaft 17 and lower horizontal shaft 18 are inserted. The housing member 19 has an appropriate number of vertical holes 19c. In this embodiment, an example in which four vertical holes 19c are formed is shown.
[0015]
Reference numeral 20 denotes a connecting pipe inserted into a vertical hole 19c formed in the housing member 19. A flange 20a is formed on the outer periphery of the upper portion of the connecting pipe 20, and the flange 20a of the connecting pipe 20 is connected to the vertical hole 19c. The connecting pipe 20 that is in contact with the projecting portion 19d of the housing member 19 formed so as to protrude inward and inserted into the vertical hole 19c of the housing member 19 is configured not to come out from above the vertical hole 19c. Has been. After the connection pipe 20 is inserted into the vertical hole 19c of the housing member 19, a stop plate 21 having a hole 21a into which the lower part of the connection pipe 20 can be inserted is attached to the lower surface of the housing member 19. Yes. A compressed coil spring 22 is mounted between the flange 20a of the connection pipe 20 and the stop plate 21 so as to surround the connection pipe 20, so that the connection pipe 20 is always urged upward. It is configured. The connecting pipe 20 protruding downward from the stop plate 21 is connected to the air supply line 6 from the air supply device described above or an air supply pipe branched from the air supply line 6. An opening 12d into which the connecting pipe 20 is inserted is formed in the central region of the horizontal portion 12c of the support frame 12.
[0016]
Reference numeral 23 denotes a compressed coil spring that is mounted between the pair of pillar members 16 and the casing member 19 so as to surround the upper horizontal shaft 17, and 24 similarly surrounds the lower horizontal shaft 18. In addition, a coil spring in a compressed state mounted between the pair of pillar members 16 and the housing member 19, and the housing member 19 is always attached to the upper horizontal shaft by the balance of the urging forces of the coil springs 23 and 24. 17 and the lower horizontal shaft 18 are configured to be maintained at a substantially central portion. The housing member 19 and the connecting pipe 20 disposed on the housing member 19 are configured to be movable along the axis lines of the upper horizontal shaft 17 and the lower horizontal shaft 18, and the upper horizontal shaft 17 and the lower horizontal shaft 18. The casing member 19 that has moved to one of the two axes along the axis is configured so that it can be returned to substantially the center of the upper horizontal shaft 17 and the lower horizontal shaft 18 by the urging force of the coil springs 23 and 24. Has been. Further, as described above, the lower horizontal shaft 18 inserted into the lower bearing hole 16b of each column member 16 is configured to be movable in a direction orthogonal to the axis of the lower horizontal shaft 18, The casing member 19 and the connecting pipe 20 disposed on the casing member 19 are configured to be rotatable about the upper horizontal shaft 17.
[0017]
A tapered chevron 20b is formed at the upper end of the connecting pipe 20, and a ring-shaped packing 25 made of rubber or soft synthetic resin is formed in the circumferential recess 20c formed in the chevron 20b. It is installed.
[0018]
26 is a connecting member attached to the spinning unit 3 of the spinning machine. The connecting member 26 has a trapezoidal fitting hole 26a having a trapezoidal vertical cross-sectional shape into which the mountain-shaped portion 20b of the connecting pipe 20 can be inserted. An air hole 26b continuous with the fitting hole 26a is formed. Further, an air supply pipe 28 is connected to the upper end portion of the connecting member 26 by an appropriate fastening tool 27. Further, the packing 25 attached to the mountain-shaped portion 20b of the connecting pipe 20 is positioned above the middle part of the inclined surface 26c that forms the trapezoidal fitting hole 26a in the vertical cross-sectional shape of the connecting member 26. ing. Further, the connecting member 26 has a function as a guide member when the connecting pipe 20 is inserted into the connecting member 26, and therefore the inner diameter of the lower end of the fitting hole 26 a of the connecting member 26 is the same as that of the connecting pipe 20. It is formed sufficiently larger than the outer diameter.
[0019]
The operation of the air supply system in the spinning machine having the above-described configuration will be described below.
[0020]
After the work carriage 4 that performs the yarn splicing work and the doffing work is stopped at a predetermined position of the spinning unit 3 of the spinning machine that requires such work, a driving device (not shown) is appropriately operated, By moving the drive lever 15 at the lower standby position upward, the connection frame 8 and the support frame 12 pivotally supported at one end of the connection lever 11 are moved upward, and the connection pipe disposed on the work carriage 4 is moved. 20 is inserted into the fitting hole 26a of the connecting member 26 attached to the spinning unit 3 of the spinning machine, and the angled surface 26c of the connecting member 26 is attached to the chevron 20b of the connecting pipe 20. The packing 25 is pressed. At this time, after the packing 25 of the connecting pipe 20 disposed on the work carriage 4 and the inclined surface 26c of the connecting member 26 attached to the spinning unit 3, the drive lever 15 is slightly moved upward. The coil spring 22 is attached so that the coupling pipe 20 descends against the urging force of the compressed coil spring 22 mounted between the flange 20a of the coupling pipe 20 and the stopper plate 21. From the air supply line 6 connected to an air supply device (not shown) by bringing the packing 25 attached to the mountain-shaped portion 20b of the connection pipe 20 into pressure contact with the inclined surface 26c of the connection member 26 using force. When supplying the supplied air to the air supply pipe 28 on the spinning unit 3 side via the connection pipe 20 and the connection member 26, the inclined surface 26 c of the connection member 26 and the path of the connection pipe 20 are provided. From the contact portion with the Kin 25, it is possible to prevent such air leakage.
[0021]
A coil spring 22 in a compressed state is attached between the flange 20a of the connection pipe 20 and the stop plate 21 so as to surround the connection pipe 20, and the connection pipe 20 resists the urging force of the coil spring 22. Since the connecting member 26 attached to the spinning unit 3 and the connecting pipe 20 disposed on the work carriage 4 are connected, the upper side of the drive lever 15 is arranged. The movement process does not need to be strictly controlled.
[0022]
Further, as described above, the connecting pipe 20 disposed in the housing member 19 is movable along the axis of the upper horizontal shaft 17 and the lower horizontal shaft 18 and is rotated around the upper horizontal shaft 17. Since the inner diameter of the lower end of the fitting hole 26a of the connecting member 26 is formed to be sufficiently larger than the outer diameter of the connecting pipe 20, the working carriage for the spinning unit 3 of the spinning machine is configured. Even if the stop position of 4 is slightly deviated, the connecting member 26 attached to the spinning unit 3 of the spinning machine and the connecting pipe 20 provided on the work carriage 4 can be reliably connected. Further, when the connection between the connecting member 26 attached to the spinning unit 3 of the spinning machine and the connecting pipe 20 disposed on the work carriage 4 is released, the casing member 19 has coil springs 23 and 24. By the urging force, the upper horizontal shaft 17 and the lower horizontal shaft 18 are returned to the substantially central portion.
[0023]
Further, as described above, the packing 25 attached to the mountain-shaped portion 20b of the connecting pipe 20 is positioned above the middle part of the inclined surface 26c that forms the fitting hole 26a of the connecting member 26. Since the horizontal area of the space portion 29 surrounded by the packing 25 between the upper end of the air hole 20d of the connecting pipe 20 and the lower end of the air hole 26b of the connecting member 26 is reduced, the connecting pipe 20 and the connecting member 26 are interposed. Thus, the air pressure applied to the connecting pipe 20 by the air supplied to the air supply pipe 28 on the spinning unit 3 side can be reduced, and therefore the urging force of the coil spring 22 that presses the connecting pipe 20 against the connecting member 26 needs to be increased. There is no.
[0024]
Below, the example which applied the air supply system in the spinning machine mentioned above to the yarn splicing operation | work is demonstrated using FIG.
[0025]
During the yarn splicing operation, a yarn wound in a package (not shown) is pulled out as a parent yarn y, introduced into the spinning unit 3a of each spinning unit 3, and sliver drafted and sent out by the drafting device 3b. Yarn splicing is performed by starting spinning so as to join 3c.
[0026]
In order to perform the above-described yarn splicing operation, the spinning unit 3a is provided with a reverse injection nozzle 3e that forms an air flow from the yarn discharge side 3d ′ of the spindle member 3d toward the tip 3d ″. Further, a suction member 3f is disposed below the front roller 3b ′ of the draft device 3b and the spinning unit 3a, and above the front roller 3b ′ of the draft device 3b and the spinning unit 3a. Is provided with an air injection member 3g for generating an air shower.
[0027]
In order to allow the parent yarn y to be inserted into the spindle member 3d constituting the spinning unit 3a, the reverse injection nozzle 3e is actuated to generate an air flow from the yarn discharge side 3d ′ of the spindle member 3d toward the tip 3d ″. The parent yarn y is introduced into the spinning unit 3a from the yarn discharge side 3d ′ of the spindle member 3d by the air flow, and the parent introduced into the spinning unit 3a and drawn out before the nozzle member 3h of the spinning unit 3a. The yarn y is guided in the direction of the suction member 3f by the air shower from the air injection member 3g, and is sucked by the suction member 3f, while the draft device 3b is driven again to move the sliver 3c in the direction of the spinning unit 3a. In this case, the reverse injection nozzle 3e is operated to prevent the introduction of the sliver 3c into the spinning unit 3a, and the sliver 3c from which the introduction of the sliver 3c into the spinning unit 3a is blocked It is sucked by the suction member 3f.
[0028]
Thereafter, the injection of air from the reverse injection nozzle 3e is stopped, the nip roller is brought into contact with a delivery roller (not shown), the master yarn y is transferred toward the winding device, and the spinning unit 3a is driven. When resuming, the sliver 3c delivered from the front roller 3b ′ is introduced into the spinning unit 3a, and the splicing is performed while the fibers constituting the sliver 3c are entangled with the parent yarn y drawn from the suction member 3f. Become.
[0029]
In the above-described yarn splicing operation, the operation timing of the reverse injection nozzle 3e and the air injection member 3g as the operation members needs to be synchronized with the feed timing of the main yarn y of the work carriage 4, and the yarn splicing is successful. It is an important one that greatly affects the rate. In the present invention, the operation timing of the reverse injection nozzle 3e and the air injection member 3g as the operation members can be performed by the control device of the work carriage 4, so that the yarn splicing can be performed stably. became. In addition, the air supply system according to the present invention can also be applied to a tension applying member that applies tension to the parent yarn y drawn out before the nozzle member 3h.
[0030]
In the above-described embodiment, the example in which the air supply device is disposed in the out-end box 2 of the spinning machine has been described. However, the air supply device may be incorporated in the work carriage 4.
[0031]
As described above, the air supplied to the work carriage 4 is supplied to the spinning machine via the connection pipe 20 provided on the work carriage 4 or the connection member 26 provided on the spinning machine. As a result, it is not necessary to provide a plurality of air supply sources, ie, an air supply source on the work carriage 4 side and an air supply source on the spinning machine side, so that the structure of the air supply system in the spinning machine can be simplified and the cost can be reduced. Can be reduced.
[0032]
Thread splicing members and doffing members disposed in the work carriage 4 and air necessary for splicing and doffing operations to the splicing members and doffing members disposed in the spinning unit 3 of the spinning machine. Since the supply is configured to be supplied from a common air supply source, control of the supply timing, supply time, air pressure, etc. of the air supplied at the time of yarn splicing work, doffing work, etc. is performed centrally. Therefore, accurate air supply to the yarn splicing member and the doffing member can be performed, and the air supply control means can be simplified.
[0033]
Since the work carriage 4 is configured to perform both the yarn splicing work and the doffing work, the work carriage 4 can be efficiently used.
[0034]
【The invention's effect】
Since the present invention has the above-described configuration, the following effects can be achieved.
[0035]
Since it is not necessary to provide each spinning unit with an air supply source that is required during operation, the structure of the air supply system in the spinning machine can be simplified and the cost can be reduced.
[0036]
Since the supply of air to the operation member that operates during yarn splicing or doffing is supplied from the work carriage side, the operation timing of the work carriage and each operation member can be reliably and accurately taken.
[0037]
Since the work carriage is configured to perform both the yarn splicing work and the doffing work, the work carriage can be efficiently used.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a spinning machine as an example to which an air supply system in a spinning machine of the present invention is applied.
FIG. 2 is a side view including a partial cross section of an air connection means between a working carriage and a spinning machine of an air supply system in a spinning machine according to the present invention.
FIG. 3 is a perspective view of air connection means between a working carriage and a spinning machine of an air supply system in a spinning machine according to the present invention.
FIG. 4 is a vertical cross-sectional view of the air connection means between the working carriage and the spinning machine of the air supply system in the spinning machine of the present invention.
FIG. 5 is a partial vertical cross-sectional view of the air connection means between the working carriage and the spinning machine of the air supply system in the spinning machine of the present invention.
FIG. 6 is a side view including a partial cross section of a spinning unit for explaining a yarn splicing operation to which an air supply system in a spinning machine of the present invention is applied.
[Explanation of symbols]
3 ... Spinning unit 4 ... Work cart 20 ... Connection pipe 26 ... Connection member

Claims (4)

In a spinning machine having a large number of spinning units and a work carriage that travels along the spinning unit, air is supplied from the work carriage to an operating member installed on the spinning unit that operates in association with the work of the work carriage. An air supply system in a spinning machine characterized by performing. The air supply system in a spinning machine according to claim 1, wherein the operating member is an operating member that operates when the yarn wound around the package is transferred to the spinning unit as a parent yarn. The air supply system in a spinning machine according to claim 1 or 2, wherein the operating member is a reverse injection nozzle that transfers a yarn wound around a package to a spinning unit as a parent yarn. The air supply system for a spinning machine according to claim 1 or 2, wherein the work performed by the work carriage is a yarn splicing work and a doffing work.

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