CN115467064A - False twisting processing machine - Google Patents

Abstract

The invention provides a false twisting processing machine, which can prevent the damage of production efficiency and homogeneity and ensure good yarn quality even if the coarse yarn is false twisted. The false twisting machine (1) is provided with a false twisting device (15) for twisting the 1 st yarn (Ya) and the 2 nd yarn (Yb), and a cooling device (14) for cooling the 1 st yarn (Ya) and the 2 nd yarn (Yb). The false twisting device (15) comprises a circular plate (41), a 1 st belt unit (42 a) and a 2 nd belt unit (42 b). The disk (41) has a 1 st contact surface (41 a) and a 2 nd contact surface (41 b). The 1 st thread (Ya) is twisted by the 1 st contact surface (41 a) and the 1 st endless belt (46 a) of the 1 st belt unit (42 a). The 2 nd thread (Yb) is twisted by the 2 nd contact surface (41 b) and the 2 nd endless belt (46 b) of the 2 nd belt unit (42 b). The cooling device (14) is provided with a cooling unit (31) in which a 1 st cooling space (Sa) and a 2 nd cooling space (Sb) are formed, and an intake duct (32) for supplying cooling air to the 1 st cooling space (Sa) and the 2 nd cooling space (Sb).

Description

False twist processing machine

Technical Field

The present invention relates to a false twisting machine for false twisting yarns.

Background

Patent document 1 discloses a false twist processing machine for false twisting a plurality of yarns made of synthetic fibers. The false twisting machine includes a false twisting device for twisting a plurality of yarns, a cooling device disposed upstream of the false twisting device in a yarn advancing direction in which the plurality of yarns advance, and a heating device disposed upstream of the cooling device in the yarn advancing direction. The plurality of running yarns are heated by a heating device and heat-set in a state of being twisted by each of the plurality of false twisting devices, and then cooled by a cooling device. Thus, the crimps of the filaments are set to produce a lofty filament.

Patent document 1: japanese patent No. 4462751

In recent years, there has been a demand for providing a false twisting machine capable of performing false twisting with respect to a conventional thick yarn. On the other hand, it is necessary to consider the number of yarns that can be false-twisted simultaneously (hereinafter referred to as production efficiency) and to suppress an increase in yarn quality variation among a plurality of yarns (hereinafter referred to as homogeneity).

Disclosure of Invention

The invention aims to prevent the damage of production efficiency and homogeneity and ensure good yarn quality even when the coarse yarn is false-twisted.

The false twist processing machine of the 1 st invention is configured to be capable of false twisting at least the 1 st and 2 nd running yarns at the same time, and is characterized by comprising: a false twisting device configured to twist the 1 st and 2 nd yarns; and a cooling device disposed upstream of the false twisting device in a yarn running direction in which the 1 st yarn and the 2 nd yarn run, and configured to cool the 1 st yarn and the 2 nd yarn, wherein the false twisting device includes a disk configured to rotate in a predetermined direction as a rotation axis direction, a 1 st band unit disposed on one side of the disk in the predetermined direction, and a 2 nd band unit disposed on the other side of the disk in the predetermined direction, the disk includes a 1 st contact surface disposed on an end portion on the one side in the predetermined direction, and a 2 nd contact surface disposed on an end portion on the other side in the predetermined direction, the 1 st band unit includes a 1 st band member movable while contacting the 1 st yarn, the 1 st yarn is twisted by sandwiching the 1 st yarn between the 1 st contact surface and the 1 st band member, the 2 nd band unit includes a 2 nd band member movable while contacting the 2 nd yarn, and the cooling device includes: a cooling unit in which a 1 st cooling space for cooling the 1 st filament and a 2 nd cooling space arranged in parallel with the 1 st cooling space and for cooling the 2 nd filament are formed; and an air intake duct which is formed with an air intake space connected to the 1 st cooling space and the 2 nd cooling space and supplies cooling air to the 1 st cooling space and the 2 nd cooling space.

In the false twisting device provided in the false twisting machine of the present invention, the 1 st yarn is sandwiched between the 1 st belt member and the 1 st contact surface, and the 2 nd yarn is sandwiched between the 2 nd belt member and the 2 nd contact surface. This allows the 1 st and 2 nd threads to be twisted reliably. Further, since the 1 st contact surface and the 2 nd contact surface are formed on the same circular plate, the interval between the 1 st and 2 nd threads can be reduced in the false twisting device. Thus, more threads can be twisted in a smaller space. In addition, in the false twisting device, the position where the 1 st yarn is false twisted can be made close to the position where the 2 nd yarn is false twisted. Thus, it is possible to suppress a large difference between the yarn passage of the 1 st yarn and the yarn passage of the 2 nd yarn (and a deviation in yarn quality between the 1 st yarn and the 2 nd yarn due to the influence thereof).

In addition, in the cooling device provided in the false twist processing machine of the present invention, the 1 st and 2 nd yarns can be reliably cooled by the cooling air. Furthermore, since the 1 st cooling space and the 2 nd cooling space are formed in the same cooling unit, the interval between the 1 st filament and the 2 nd filament can be reduced in the cooling device. Thus, more wires can be cooled in a smaller space. Further, as described above, since the interval between the 1 st and 2 nd yarns can be reduced, it is possible to suppress a large difference between the yarn passage of the 1 st yarn and the yarn passage of the 2 nd yarn (and the above-described variation in the yarn quality due to the influence thereof).

As described above, even when the coarse yarn is false-twisted, it is possible to ensure good yarn quality while suppressing deterioration of production efficiency and homogeneity.

The false twist texturing machine according to claim 2 is characterized in that, in the above-described invention 1, the 1 st cooling space and the 2 nd cooling space are arranged side by side in the predetermined direction.

In the present invention, when the 1 st and 2 nd yarns are fed from the cooling device to the false twisting device, the 1 st and 2 nd yarns can be maintained in a state of being aligned in a predetermined direction. Thus, for example, the yarn passage of the 1 st yarn and the yarn passage of the 2 nd yarn can be further suppressed from being different from each other, as compared with a case where the 1 st cooling space and the 2 nd cooling space are arranged side by side in a direction different from the predetermined direction. Therefore, the variation in the yarn quality between the 1 st and 2 nd yarns can be effectively reduced.

The false twist texturing machine according to claim 3 is characterized in that, in the 2 nd aspect, WC2 is not more than WC1 when an interval between an upstream end of the 1 st cooling space in the yarn running direction and an upstream end of the 2 nd cooling space in the yarn running direction is WC1 in a predetermined direction, and an interval between a downstream end of the 1 st cooling space in the yarn running direction and a downstream end of the 2 nd cooling space in the yarn running direction is WC2 in the predetermined direction.

In the present invention, since WC2 is small, the 1 st and 2 nd yarns can be prevented from being bent when the 1 st and 2 nd yarns are conveyed from the cooling device to the false twisting device. Therefore, the quality of the yarn can be prevented from being degraded.

The false twist processing machine according to claim 4 is the false twist processing machine according to claim 2 or 3, including: an upstream yarn guide member disposed upstream of the cooling device in the running direction of the yarn; and a downstream wire guide member disposed downstream of the cooling device in the wire traveling direction, wherein the upstream wire guide member is configured such that a distance between the 1 st wire and the 2 nd wire in the predetermined direction is defined as W1, the downstream wire guide member is configured such that a distance between the 1 st wire and the 2 nd wire in the predetermined direction is defined as W2, and when a distance between an upstream end of the 1 st cooling space in the wire traveling direction and an upstream end of the 2 nd cooling space in the wire traveling direction is defined as WC1, and a distance between a downstream end of the 1 st cooling space in the wire traveling direction and a downstream end of the 2 nd cooling space in the wire traveling direction is defined as WC2, W2 is not less than WC1 not less than W1, or W1 is not less than 1 not less than 2 not less than W2.

In the present invention, when the yarn threading operation is performed on the cooling unit, the yarn threading operation can be performed while both the 1 st yarn and the 2 nd yarn are maintained substantially linearly. That is, when the yarn hooking operation is performed to the cooling unit, it is almost unnecessary to bend the 1 st and 2 nd yarns. Therefore, the 1 st and 2 nd yarns can be easily threaded simultaneously into the cooling unit.

The false twist processing machine of claim 5 is characterized in that, in any one of the inventions 2 to 4, the cooling unit includes a partition member for partitioning the 1 st cooling space and the 2 nd cooling space in a predetermined direction.

The 1 st and 2 nd cooling spaces also do not necessarily have to be separated, but in this case the 1 st and 2 nd wires may for some reason be intertwined with each other. In the present invention, since the 1 st cooling space and the 2 nd cooling space are partitioned by the partition member, occurrence of such a problem can be reliably avoided.

The false twist texturing machine according to claim 6 is characterized in that, in the false twist texturing machine according to claim 5, the air suction space extends in the predetermined direction, and the 1 st cooling space and the 2 nd cooling space are connected to the air suction space, respectively.

In the present invention, the 1 st cooling space and the 2 nd cooling space are connected to (i.e., connected in parallel with) the intake space extending in the predetermined direction, respectively. Therefore, the cooling air can be supplied to the 1 st cooling space and the 2 nd cooling space substantially uniformly with a simple structure.

The false twist texturing machine according to claim 7 is characterized in that, in the 5 th or 6 th aspect, the partitioning member includes: a 1 st partition having a 1 st partition surface disposed on the one side in the predetermined direction to form the 1 st cooling space; and a 2 nd partition portion having a 2 nd partition surface disposed on the other side in the predetermined direction to form the 2 nd cooling space, the cooling unit including: a 1 st wall member having a 1 st wall surface arranged on the one side of the 1 st partition surface in the predetermined direction and forming the 1 st cooling space; and a 2 nd wall member having a 2 nd wall surface arranged on the other side of the 2 nd partition surface in the predetermined direction and forming the 2 nd cooling space.

In the present invention, the 1 st cooling space is formed by the 1 st partition surface of the partition member and the 1 st wall surface of the 1 st wall member. Further, a 2 nd cooling space is formed by the 2 nd partition surface of the partition member and the 2 nd wall surface of the 2 nd wall member. Thus, the 1 st cooling space and the 2 nd cooling space can be formed by a simple configuration.

The false twist texturing machine according to claim 8 is characterized in that, in the 7 th aspect, the 1 st partition surface is disposed so as to face the 1 st wall surface in the predetermined direction, and the 2 nd partition surface is disposed so as to face the 2 nd wall surface in the predetermined direction.

For example, when the 1 st yarn is twisted by the false twisting device and comes into contact with a wall surface forming the 1 st cooling space, the 1 st yarn may roll along the wall surface and fall off from the 1 st cooling space. In particular, this possibility increases in the case of a large inlet for the 1 st wire into the 1 st cooling space. The same applies to the 2 nd cooling space. In the present invention, the 1 st partition surface is disposed so as to face the 1 st wall surface in a predetermined direction (that is, the two surfaces are substantially parallel to each other). This can narrow the inlet of the 1 st cooling space. The same applies to the 2 nd cooling space. Thus, the 1 st wire can be inhibited from falling off from the 1 st cooling space, and the 2 nd wire can be inhibited from falling off from the 2 nd cooling space.

The false twist texturing machine according to claim 9 is characterized in that, in the 7 th or 8 th aspect, the cooling unit includes: a 1 st thread guide disposed between the 1 st partition surface and the 1 st wall surface in the predetermined direction, and guiding the 1 st thread to a downstream side in the thread traveling direction; and a 2 nd yarn guide disposed between the 2 nd partition surface and the 2 nd wall surface in the predetermined direction, and guiding the 2 nd yarn to a downstream side in the yarn advancing direction.

The cooling unit may be configured to cool the wire by the cooling wind, and the wall surface and the partition surface cooled by the cooling wind, for example. However, in the configuration in which the yarn is brought into polar contact with the wall surface and the partition surface, the yarn tends to roll along the wall surface or the partition surface when the yarn is twisted by the false twisting device. Therefore, the possibility of the wire falling from the cooling space is increased. In this regard, in the present invention, the 1 st thread is guided to the downstream side in the thread running direction by the 1 st thread guide, and the 2 nd thread is guided to the downstream side in the thread running direction by the 2 nd thread guide. That is, the cooling unit is not configured to make the wire contact the partition surface and the wall area as much as possible. Thus, the above-described problem can be suppressed.

The false twist processing machine according to claim 10 is characterized in that, in any one of the 7 th to 9 th aspects of the invention, the 1 st wall member and the 2 nd wall member are attached to the air suction duct, and at least one of the 1 st wall member and the 2 nd wall member supports the partition member.

The cooling unit may be designed such that the smaller the partition member is in the predetermined direction, the shorter the distance between the 1 st cooling space and the 2 nd cooling space is in the predetermined direction. That is, the interval between the 1 st and 2 nd filaments can be narrowed. However, when the partition member is very small in a predetermined direction, there is a possibility that the partition member cannot be attached to the intake duct (for example, by screwing). In the present invention, the partition member can be supported by at least one of the 1 st wall member and the 2 nd wall member. Therefore, even when the partition member cannot be attached to the intake duct, the partition member can be normally disposed.

The false twist texturing machine according to claim 11 is characterized in that, in the above 10 th invention, both the 1 st wall member and the 2 nd wall member support the partition member.

In the present invention, the partition member is supported at both ends by the 1 st wall member and the 2 nd wall member. Thus, the partition member can be stably supported.

The false twist processing machine according to claim 12 is characterized in that, in any one of the 7 th to 11 th inventions, at least the partition member is configured to be movable relative to the 1 st wall member and the 2 nd wall member.

Generally, a finish for smoothly advancing the yarn is applied to the yarn subjected to false twisting. When such an oil agent adheres to the cooling unit, the cooling unit is contaminated, and therefore, it is necessary to appropriately clean the components constituting the cooling unit. In the present invention, at least the partition member is configured to be relatively movable with respect to the 1 st wall member and the 2 nd wall member. The relative movement includes, for example, the case where the 1 st wall member and the 2 nd wall member are movable relative to the partition member. This can ensure a large space for cleaning these members. Therefore, the efficiency of cleaning and the like can be improved.

A false twist processing machine according to claim 13 is characterized in that, in the 12 th aspect of the invention, a position of one of the 1 st wall member and the 2 nd wall member is fixed with respect to the suction duct, and the other of the 1 st wall member and the 2 nd wall member and the partition member are movable with respect to the one of the 1 st wall member and the 2 nd wall member.

For convenience of explanation, one of the 1 st wall member and the 2 nd wall member is referred to as a fixed wall member. In the present invention, another cooling unit may be provided in the vicinity of the fixed wall member, the other cooling unit being configured to be line-symmetric with respect to the cooling unit with a straight line substantially parallel to the longitudinal direction of the cooling unit as a symmetry axis. Even if such another cooling unit is provided, the two fixed wall members disposed adjacent to each other do not move. Therefore, when the members are moved at the time of cleaning, the members can be prevented from interfering with each other.

The false twist processing machine according to claim 14 is characterized in that, in the 12 th or 13 th aspect, the partition member is configured to be attachable to and detachable from the cooling unit.

In the present invention, since the partition member can be completely separated from the cooling unit, the work efficiency of cleaning and the like can be greatly improved.

A false twist processing machine according to claim 15 is the false twist processing machine according to any one of the 7 th to 14 th aspects, wherein when a direction orthogonal to both the longitudinal direction and the predetermined direction of the cooling unit is defined as a height direction, the partition member includes: a 1 st thread insertion guide portion protruding, at least in the height direction, toward a working space where the cooling device is to be subjected to a threading operation than the 1 st partition portion; and a 2 nd thread insertion guide portion protruding toward the working space side than the 2 nd partition portion at least in the height direction.

In the present invention, during the yarn threading operation, the 1 st yarn can be moved along the 1 st yarn insertion guide portion, and the 2 nd yarn can be moved along the 2 nd yarn insertion guide portion. Therefore, the success rate of the wire hanging operation can be improved.

A false twist processing machine according to 16 th aspect of the invention is the false twist processing machine according to 15 th aspect of the invention, which includes a heating device disposed upstream of the cooling device in the yarn running direction and configured to heat the 1 st yarn and the 2 nd yarn, wherein the false twist device, the cooling device, and the heating device are disposed above the working space, and an upstream end of the heating device in the yarn running direction is disposed so as to be separated from a downstream end of the heating device in the yarn running direction in a vertical direction from the cooling device toward an upper side.

In the present invention, since the upstream end portion of the heating device in the yarn running direction is disposed at a high position in the vertical direction, it is difficult for the operator to catch the yarn on the heating device with his or her hands. In this case, generally, after hooking the yarn to the false twisting device, the yarn is hooked to the cooling device and the heating device at one time by using a device (for example, an air jet device) for moving the yarn upward. In performing such a threading operation, it is particularly effective to improve the success rate of threading by inserting the 1 st and 2 nd threads into the guide portion.

Drawings

Fig. 1 is a side view of a false twist processing machine according to the present embodiment.

FIG. 2 is a schematic view of the unwinding of a false twist texturing machine along the path of a yarn.

Fig. 3 is a view in direction III of fig. 1.

Fig. 4 is a partially enlarged view of fig. 3 showing an end portion of the cooling device on the upstream side in the running direction of the yarn and a portion in the vicinity thereof.

Fig. 5 is a partially enlarged view of fig. 3 showing an end portion on the downstream side in the running direction of the yarn of the cooling device and a portion in the vicinity thereof.

FIG. 6 is a partially enlarged view of FIG. 3 showing the false twisting device.

FIG. 7 is a side view of the false twisting device.

Fig. 8 is a schematic view showing components constituting the cooling unit.

Fig. 9 is a cross-sectional view taken along line IX-IX of fig. 8.

Fig. 10 is an explanatory diagram illustrating a state in which the partition member is detached from the cooling unit.

Fig. 11 is a diagram of a cooling unit further modeled.

Fig. 12 is an explanatory diagram showing a cooling unit according to a modification.

Fig. 13 is an explanatory view showing a cooling unit according to another modification.

Description of the symbols

1: a false twisting processing machine; 13: 1 st heating means (heating means); 14: a cooling device; 15: a false twisting device; 31: a cooling unit; 31A: a cooling unit; 32: an air intake duct; 41: a circular plate; 41a: 1, a first contact surface; 41b: a 2 nd contact surface; 42a: a 1 st belt unit; 42b: a 2 nd belt unit; 46a: a 1 st endless belt (1 st belt member); 46b: a 2 nd endless belt (2 nd belt member); 51: a fixed wall plate (2 nd wall member); 52: a movable wall plate (1 st wall member); 53: a partition member; 64: a wall surface (1 st wall surface); 74: wall surface (2 nd wall surface); 89a: 1, inserting a silk thread into the guide wire part; 89b: 2, inserting a silk thread into the guide wire part; 90a: 1 st separating surface; 90b: the 2 nd separating surface; 96a: 1, a thread guide; 96b: a 2 nd thread guide; sa: 1 st cooling space; sb: a 2 nd cooling space; and Ss: a suction space; w1: spacing; w2: spacing; WC1: spacing; WC2: spacing; and Ya: 1 st wire; yb: and 2 nd wire.

Detailed Description

Next, embodiments of the present invention will be explained. The direction perpendicular to the paper surface in fig. 1 is the machine body longitudinal direction (predetermined direction in the present invention). For convenience of explanation, the front side of the paper of fig. 1 and the left side of the paper of fig. 2 are referred to as one side in the longitudinal direction of the body, and the back side of the paper of fig. 1 and the right side of the paper of fig. 2 are referred to as the other side in the longitudinal direction of the body. The left-right direction of the paper surface in fig. 1 is the machine width direction. A direction orthogonal to both the machine body longitudinal direction and the machine body width direction is set as a vertical direction (vertical direction) in which gravity acts. The direction in which a plurality of yarns Y (described later) run side by side is referred to as a yarn running direction.

(integral constitution of false twist processing machine)

First, the overall configuration of the false twist processing machine 1 according to the present embodiment will be described with reference to fig. 1 and 2. FIG. 1 is a side view of a false twist texturing machine 1. FIG. 2 is a schematic view of the false twist texturing machine 1 being extended along the path of the yarn Y (yarn path).

The false twist processing machine 1 is configured to simultaneously false twist a plurality of yarns Y made of synthetic fibers (for example, polyester). Each of the plurality of threads Y is a multifilament thread formed of a plurality of filaments, for example. Alternatively, each yarn Y may be formed of 1 filament. The false twist processing machine 1 includes a yarn feeding section 2, a processing section 3, and a winding section 4. The yarn feeding unit 2 is configured to be capable of feeding a plurality of yarns Y. The processing section 3 is configured to draw out a plurality of yarns Y from the yarn feeding section 2 and perform false twisting. The winding unit 4 is configured to wind the plurality of yarns Y processed by the processing unit 3 around the winding bobbin Bw. A plurality of components included in the yarn feeding section 2, the processing section 3, and the winding section 4 are arranged in the longitudinal direction of the machine body (see fig. 2). The machine body longitudinal direction is a direction orthogonal to a running surface (paper surface in fig. 1) of the yarn Y formed by the yarn path from the yarn feeding unit 2 to the winding unit 4 through the processing unit 3.

The yarn feeding section 2 has a creel 7 that holds a plurality of yarn feeding packages Ps, and feeds a plurality of yarns Y to the processing section 3. The processing section 3 is configured to draw out a plurality of yarns Y from the yarn feeding section 2 and perform processing. The processing section 3 is configured such that a 1 st feed roller 11, a twist stop yarn guide 12, a 1 st heating device 13 (a heating device of the present invention), a cooling device 14, a false twisting device 15, a 2 nd feed roller 16, a doubling device 17, a 3 rd feed roller 18, a 2 nd heating device 19, and a 4 th feed roller 20 are arranged in this order from the upstream side in the running direction of the yarn. The winding unit 4 includes a plurality of winding devices 21. Each winding device 21 winds the yarn Y false-twisted by the processing unit 3 around one or more winding bobbins Bw to form one or more winding packages Pw.

The false twist texturing machine 1 has a main body 8 and a take-up table 9 arranged at intervals in the machine width direction. The main body 8 and the take-up table 9 are provided to extend substantially the same length in the longitudinal direction of the body. The main body 8 and the winding table 9 are disposed so as to face each other in the machine width direction. A working space Sw (see fig. 1) for an operator to perform a work such as threading is formed between the main body 8 and the winding table 9. The false twist texturing machine 1 has a unit called a span including a main body 8 and a take-up table 9 in a set. In one span, each device is configured to be able to simultaneously perform false twisting on a plurality of yarns Y running side by side in the machine body longitudinal direction. In the false twist texturing machine 1, the spans are arranged symmetrically with respect to the center line C of the main body 8 in the machine width direction as a symmetry axis (the main body 8 is shared by the left and right spans). Further, the plurality of spans are arranged in the body length direction.

(constitution of processing portion)

The structure of the processing section 3 will be described with reference to fig. 1 and 2. The 1 st yarn supplying roller 11 is configured to unwind the yarn Y from the yarn supply package Ps attached to the yarn supplying section 2 and feed the yarn Y to the 1 st heating device 13. As shown in fig. 2, the 1 st yarn feeding roller 11 is configured to be able to feed two yarns Y to the 1 st heating device 13, for example, but is not limited thereto. The twist stopping yarn guide 12 is configured to prevent the twist imparted to the yarn Y by the false twisting device 15 from propagating to the upstream side in the yarn advancing direction of the twist stopping yarn guide 12.

The 1 st heating device 13 is configured to heat the yarn Y fed from the 1 st yarn feeding roller 11. The 1 st heating device 13 is disposed at an inclination such that an upstream end in the running direction of the yarn is located above a downstream end (see fig. 1). In other words, the upstream end portion of the 1 st heating device 13 in the yarn running direction is arranged to be separated from the cooling device 14 in the vertical direction (vertical direction) to the upper side than the downstream end portion of the 1 st heating device 13 in the yarn running direction. As shown in fig. 2, the 1 st heating device 13 is configured to be able to heat 4 yarns Y, for example, but is not limited thereto.

The cooling device 14 is configured to cool the yarn Y heated by the 1 st heating device 13. Details of the cooling device 14 will be described later. The false twisting device 15 is disposed downstream of the cooling device 14 in the yarn running direction, and is configured to twist two yarns Y (the 1 st yarn Ya and the 2 nd yarn Yb). Details of the false twisting device 15 will be described later.

The 2 nd yarn supplying roller 16 is configured to convey the yarn Y treated by the false twisting device 15 to the doubling device 17. The feeding speed of the 2 nd yarn feeding roller 16 to the yarn Y is faster than the feeding speed of the 1 st yarn feeding roller 11 to the yarn Y. Thereby, the yarn Y is stretched between the 1 st yarn feeding roller 11 and the 2 nd yarn feeding roller 16.

The doubling device 17 is configured to be able to form the yarn Yc by doubling the 1 st yarn Ya and the 2 nd yarn Yb. The yarn doubling device 17 has two interlacing nozzles 17a and 17b (see fig. 2). The doubling device 17 forms the yarn Yc by, for example, jetting air to the 1 st yarn Ya and the 2 nd yarn Yb (see the left part of the paper surface in fig. 2) passing through the inside of the interlacing nozzle 17a, and doubling the 1 st yarn Ya and the 2 nd yarn Yb by air interlacing (interlacing) that is caused by air flow. The doubling device 17 can also guide the 1 st yarn Ya and the 2 nd yarn Yb directly to the downstream side in the yarn running direction without doubling them. In this case, the 1 st yarn Ya passes through the interlacing nozzle 17a, and the 2 nd yarn Yb passes through the interlacing nozzle 17b (see the right part of the drawing sheet of fig. 2). Instead of the yarn doubling device 17 having the interlacing nozzles 17a and 17b, for example, a yarn doubling part (not shown) having a yarn guide or a yarn feeding roller (not shown) may be provided. The doubling section may be configured to double the two yarns Y by the yarn guide or the yarn feeding roller, or may be configured to guide the two yarns Y directly to the downstream side in the yarn advancing direction without doubling.

The 3 rd yarn feeding roller 18 is configured to feed the yarn Y running on the downstream side of the doubling device 17 in the running direction of the yarn to the 2 nd heating device 19. As shown in fig. 2, the 3 rd yarn feeding roller 18 is configured to be able to feed two yarns Y to the 2 nd heating device 19, for example, but is not limited thereto. The feed speed of the yarn Y by the 3 rd yarn feed roller 18 is slower than the feed speed of the yarn Y by the 2 nd yarn feed roller 16. Accordingly, the yarn Y is slackened between the 2 nd supply roll 16 and the 3 rd supply roll 18. The 2 nd heating device 19 is configured to heat the yarn Y fed from the 3 rd supply roller 18. The 2 nd heating devices 19 extend in the vertical direction, and are provided one each in one span. The 4 th yarn supplying roll 20 is configured to convey the yarn Y heated by the 2 nd heating device 19 to the winding device 21. As shown in fig. 2, the 4 th yarn feeding roller 20 is configured to feed two yarns Y to the winding device 21, for example, but is not limited thereto. The speed of the yarn Y fed by the 4 th yarn feeding roller 20 is slower than the speed of the yarn Y fed by the 3 rd yarn feeding roller 18. Accordingly, the yarn Y is slackened between the 3 rd supply roll 18 and the 4 th supply roll 20.

In the working section 3 configured as described above, the yarn Y stretched between the 1 st yarn feeding roller 11 and the 2 nd yarn feeding roller 16 is twisted by the false twisting device 15. The twist formed by the false twisting device 15 propagates to the twist stop yarn guide 12, but does not propagate to the upstream side in the yarn advancing direction of the twist stop yarn guide 12. The yarn Y twisted while being stretched is heated and heat-set by the 1 st heating device 13, and then cooled by the cooling device 14. The yarn Y is untwisted on the downstream side of the false twisting device 15 in the yarn advancing direction, but the yarn Y is maintained in a state of being false twisted in a wavy form by the heat setting. The two yarns Y (the 1 st yarn Ya and the 2 nd yarn Yb) subjected to the false twisting are guided to the downstream side in the yarn advancing direction by the yarn doubling device 17 or without being doubled while being loosened between the 2 nd yarn feed roller 16 and the 3 rd yarn feed roller 18. Further, the yarn Y is heat-treated by the 2 nd heating device 19 while being loosened between the 3 rd yarn feeding roller 18 and the 4 th yarn feeding roller 20. Finally, the yarn Y (the yarn Yc, the 1 st yarn Ya, and the 2 nd yarn Yb) fed from the 4 th yarn feeding roller 20 is wound by the winding device 21. Thereby, one or two winding packages Pw are formed in each winding device 21.

(constitution of winding part)

The structure of the winding unit 4 will be described with reference to fig. 2. The winding unit 4 includes a plurality of winding devices 21. Each take-up device 21 is configured to be able to take up the yarn Y on one or two take-up bobbins Bw, for example. The winding device 21 includes a fulcrum guide 22, a traverse device 23, and a cradle 24. The fulcrum guide 22 is a guide that serves as a fulcrum when the yarn Y traverses. For example, 3 fulcrum guide devices 22 are provided for each take-up device 21 (see fig. 2). For example, when the yarn Yc doubled by the doubling device 17 into 1 yarn is guided, the yarn Y is hooked to the fulcrum guide 22 disposed at the center of the 3 fulcrum guides (see the left part of the drawing sheet of fig. 2). When two yarns Y that have not been doubled and are directly fed are guided, the yarns Y are respectively hooked to two fulcrum yarn guides 22 at both ends of the 3 fulcrum yarn guides 22 (see the right part of the drawing sheet of fig. 2). The traverse device 23 is configured to be able to traverse the yarn Y by the traverse guide 25. The number of the traverse guides 25 can be changed according to the number of the yarns Y to be traversed. The cradle 24 is configured to rotatably support one or two winding bobbins Bw. A contact roller 26 is disposed near the cradle 24. The contact roller 26 is in contact with the surface of one or both of the winding packages Pw to apply a contact pressure. In the winding unit 4 configured as described above, the yarn Y fed from the 4 th yarn supplying roll 20 is wound around one or two winding bobbins Bw by the respective winding devices 21 to form one or two winding packages Pw. The configuration of the winding device 21 is not limited to the above configuration. The winding device 21 may be configured to form 3 or more winding packages Pw at the same time, for example. Alternatively, the winding unit 4 may have the same number of winding devices (not shown) as the number of the yarns Y supplied from the yarn supplying unit 2. Each of the winding devices may be configured to wind 1 yarn Y.

Here, in recent years, it has been required to perform false twisting processing on a yarn Y thicker than the conventional yarn Y. On the other hand, it is necessary to consider the number of yarns Y that can be false-twisted simultaneously (hereinafter referred to as production efficiency) and to suppress an increase in yarn quality variation among a plurality of yarns Y (hereinafter referred to as homogeneity). Therefore, in the present embodiment, the processing section 3 has the following configuration so as to ensure good yarn quality while suppressing the deterioration of production efficiency and homogeneity even when false twisting is performed on a thick yarn Y.

(more detailed constitution of processing section)

Next, a more detailed structure of the processing section 3 will be described. First, the layout of the vicinity of the 1 st heating device 13, the cooling device 14, and the false twisting device 15 will be described in more detail with reference to fig. 3 to 5. Fig. 3 is a view in direction III of fig. 1. Fig. 4 is a partially enlarged view of fig. 3 showing an upstream-side end portion of the cooling device 14 in the running direction of the yarn and a portion in the vicinity thereof. Fig. 5 is a partially enlarged view of fig. 3 showing the downstream end of the cooling device 14 in the running direction of the yarn and its vicinity. In the present embodiment, the 1 st heating device 13, the cooling device 14, and the false twisting device 15 are disposed above the working space Sw.

As shown in fig. 3, the plurality of 1 st heating devices 13 are arranged side by side in the machine body longitudinal direction. Each of the plurality of first heating devices 13 is configured to be able to simultaneously heat, for example, 4 threads Y running side by side in the longitudinal direction of the machine body. A yarn guide G1 (see fig. 4, an upstream yarn guide member of the present invention) is provided between the 1 st heating device 13 and the cooling device 14 in the yarn running direction (i.e., on the upstream side of the cooling device 14 in the yarn running direction). The yarn guide G1 is configured to guide the 4 yarns Y to the downstream side in the yarn advancing direction. The pitch (interval w1. See fig. 4) in the longitudinal direction of the machine body of the 4 wires Y guided by the wire guide G1 is defined to be, for example, 14mm. The size of the interval W1 is not limited to this.

The cooling device 14 is a non-contact device that cools the plurality of yarns Y by cooling air (details will be described later). As shown in fig. 3, the cooling device 14 includes a plurality of cooling units 31 and an intake duct 32 connected to the plurality of cooling units 31. The cooling device 14 supplies cooling air to a plurality of cooling spaces S (see fig. 4 and 5) formed in the plurality of cooling units 31, respectively, by a suction device (not shown) that sucks the gas in the intake duct 32. The plurality of yarns Y are cooled by the cooling air.

The plurality of cooling units 31 are arranged side by side in the longitudinal direction of the machine body. The plurality of cooling units 31 are attached to the intake duct 32. Each of the plurality of cooling units 31 extends in a direction intersecting with (substantially orthogonal to) the longitudinal direction of the housing. Each cooling unit 31 may extend substantially linearly, but is not limited thereto (for example, may be bent). Each cooling unit 31 is configured to cool the two yarns Y (the 1 st yarn Ya and the 2 nd yarn Yb). Each cooling unit 31 is provided with a 1 st cooling space Sa for cooling the 1 st filament Ya and a 2 nd cooling space Sb for cooling the 2 nd filament Yb (see fig. 4 and 5). The plurality of cooling units 31 include two cooling units 31A and 31B arranged adjacent to each other in the longitudinal direction of the machine body. Two cooling units 31A, 31B are provided corresponding to one 1 st heating device 13. The interval between the cooling unit 31A and the cooling unit 31B in the machine longitudinal direction is increased toward the downstream side in the yarn running direction, for example. The two cooling units 31A and 31B are line-symmetric with respect to a predetermined straight line L (see fig. 3) as a symmetry axis. More details about the cooling unit 31 will be described later.

The intake duct 32 is a duct configured to supply cooling air to the plurality of cooling units 31. The suction duct 32 extends along the length of the body. An intake space Ss extending in the longitudinal direction of the body is formed in the intake duct 32. The intake space Ss is connected to the cooling space S (see fig. 4 and 5). A plurality of cooling units 31 are attached to the intake duct 32.

As shown in FIG. 3, a plurality of false twisting devices 15 are arranged side by side in the longitudinal direction of the machine body. The false twisting devices 15 are configured to be able to simultaneously heat two yarns Y (the 1 st yarn Ya and the 2 nd yarn Yb) running side by side in the machine body longitudinal direction. A yarn guide G2 (see fig. 5, a downstream yarn guide member of the present invention) is provided between the cooling device 14 and the false twisting device 15 in the yarn running direction (i.e., on the downstream side of the cooling device 14 in the yarn running direction). The yarn guide G2 is configured to guide the two yarns Y to the downstream side in the yarn running direction. The distance W2 (see fig. 5) in the longitudinal direction of the machine body between the two yarns Y guided by the yarn guide G2 is defined to be, for example, 8mm. The size of the interval W2 is not limited to this.

(detailed construction of false twisting device)

Next, the detailed structure of the false twisting device 15 will be described with reference to fig. 6 and 7. FIG. 6 is a partially enlarged view of FIG. 3 showing the false twisting device 15. FIG. 7 is a view of the false twisting device 15 viewed from one side in the longitudinal direction of the body.

The false twisting device 15 is a known false twisting device described in japanese patent application laid-open No. 2018-127731, for example. As shown in fig. 6, the false twisting device 15 includes a circular plate 41 and two belt units 42 (a 1 st belt unit 42a and a 2 nd belt unit 42 b). The false twisting device 15 is configured to twist the 1 st yarn Ya by sandwiching the 1 st yarn Ya between the 1 st contact surface 41a (described later) of the circular plate 41 and the 1 st endless belt 46a (described later) of the 1 st belt unit 42 a. The false twisting device 15 is configured to twist the 2 nd yarn Yb by sandwiching the 2 nd yarn Yb between a 2 nd contact surface 41b (described later) of the circular plate 41 and a 2 nd endless belt 46b (described later) of the 2 nd belt unit 42 b.

The disc 41 is a member configured to rotate with the machine body length direction as the rotation axis direction. The circular plate 41 is fixed to a common rotating shaft 43 extending in the longitudinal direction of the body, for example. The common rotating shaft 43 is configured to connect the plurality of disks 41 provided in the plurality of false twisting devices 15, respectively. The common rotating shaft 43 is rotated and driven by a motor, not shown, for example. Thereby, the disk 41 is rotationally driven. A 1 st contact surface 41a for contacting the 1 st yarn Ya is formed on one end surface of the circular plate 41 in the machine body longitudinal direction. A 2 nd contact surface 41b for contacting the 2 nd wire Yb is formed on the other end surface of the circular plate 41 in the machine body longitudinal direction.

The 1 st band unit 42a is disposed on one side of the disk 41 in the machine length direction. The 1 st belt unit 42a has a 1 st drive pulley 44a, a 1 st driven pulley 45a, and a 1 st endless belt 46a (1 st belt member of the present invention). The 1 st endless belt 46a is wound around the 1 st drive pulley 44a and the 1 st driven pulley 45 a. The 1 st filament Ya is arranged to be sandwiched between the 1 st endless belt 46a and the 1 st contact surface 41a. The rotation shaft of the 1 st drive pulley 44a and the rotation shaft of the 1 st driven pulley 45a extend in a direction substantially orthogonal to the longitudinal direction of the body. The rotation shaft of the 1 st drive pulley 44a and the rotation shaft of the 1 st driven pulley 45a are substantially parallel to each other. The 1 st drive pulley 44a and the 1 st driven pulley 45a are arranged side by side in a direction substantially orthogonal to the common rotation shaft 43.

The 2 nd band unit 42b is disposed on the other side in the machine body longitudinal direction of the circular plate 41. The 2 nd belt unit 42b has a 2 nd drive pulley 44b, a 2 nd driven pulley 45b, and a 2 nd endless belt 46b (2 nd belt member of the present invention). A 2 nd endless belt 46b is wound around the 2 nd drive pulley 44b and the 2 nd driven pulley 45 b. The 2 nd wire Yb is configured to be sandwiched between the 2 nd annular belt 46b and the 2 nd contact surface 41b. The rotation shaft of the 2 nd drive pulley 44b and the rotation shaft of the 2 nd driven pulley 45b extend in a direction substantially parallel to the rotation shaft of the 1 st drive pulley 44a and the rotation shaft of the 1 st driven pulley 45 a. The 2 nd drive pulley 44b and the 2 nd driven pulley 45b are arranged side by side in a direction substantially orthogonal to the common rotation shaft 43.

The 1 st drive pulley 44a and the 2 nd drive pulley 44b are rotationally driven by a drive unit 47 (see fig. 7). The driving unit 47 is configured to rotationally drive the 1 st drive pulley 44a and the 2 nd drive pulley 44b in opposite directions to each other. The driving unit 47 includes a driving source (e.g., a motor), not shown, a 1 st power transmission member, not shown, that transmits power of the driving source to the 1 st driving pulley 44a, and a 2 nd power transmission member, not shown, that transmits power of the driving source to the 2 nd driving pulley 44 b.

The 1 st belt unit 42a and the 2 nd belt unit 42b are disposed so as to substantially overlap each other when viewed from the longitudinal direction of the machine body. Thus, the yarn path of the 1 st yarn Ya and the yarn path of the 2 nd yarn Yb in the false twisting device 15 substantially overlap each other when viewed from the longitudinal direction of the machine body (see fig. 7).

In the false twisting device 15 configured as described above, the 1 st yarn Ya is twisted by the 1 st endless belt 46a and the 1 st contact surface 41a. The 2 nd wire Yb is twisted by the 2 nd annular belt 46b and the 2 nd contact surface 41b. Thus, two threads Y are twisted simultaneously. The 1 st and 2 nd filaments Ya and Yb are twisted in opposite directions to each other. For example, the 1 st wire Ya is Z-twisted and the 2 nd wire Yb is S-twisted.

(detailed construction of Cooling device)

Next, the cooling device 14 will be described in more detail with reference mainly to fig. 8 to 11. Fig. 8 is a view schematically showing components constituting the cooling unit 31 (cooling unit 31A), and is a view of the cooling unit 31A as viewed from the same direction as fig. 3. That is, fig. 8 is a view of the cooling unit 31A as viewed from substantially the lower side. Fig. 9 is a cross-sectional view taken along line IX-IX of fig. 8. Fig. 10 is an explanatory diagram showing a state in which the partition member 53 described later is detached from the cooling unit 31A. Fig. 11 is a diagram in which the cooling unit 31A is further modeled to make the cooling space S easier to see. As described above, the cooling unit 31A and the cooling unit 31B are configured to be line-symmetrical with each other (see fig. 3). Therefore, the cooling unit 31A will be mainly described in detail below, and the cooling unit 31B will be briefly described below.

The direction perpendicular to the paper surface in fig. 8 is the height direction. The height direction is parallel to the vertical direction of the paper of fig. 9 and 10. The height direction is a direction orthogonal to the longitudinal direction of the body. In the present embodiment, the height direction has at least a component in the vertical direction. In the present embodiment, one side in the height direction can also be referred to as substantially the upper side. The other side in the height direction can be referred to as a substantially lower side. It should be noted, however, that the relationship between the height direction and the up-down direction may vary depending on the direction in which the cooling device 14 is arranged. For convenience of explanation, a direction orthogonal to both the longitudinal direction and the height direction of the body is referred to as an orthogonal direction. The cooling unit 31A and the cooling unit 31B extend at least in the orthogonal direction. In the orthogonal direction, the side close to the 1 st heating device 13 is referred to as one side, and the side close to the false twisting device 15 is referred to as the other side. In the present embodiment, the cooling unit 31A and the cooling unit 31B each extend in a direction slightly inclined from the orthogonal direction.

As shown in fig. 8 to 11, the cooling unit 31A includes a fixed wall plate 51 (the 2 nd wall member of the present invention), a movable wall plate 52 (the 1 st wall member of the present invention), and a partition member 53. The fixed wall plate 51 corresponds to "one of the 1 st wall member and the 2 nd wall member" in the present invention. The movable wall plate 52 corresponds to the "other of the 1 st wall member and the 2 nd wall member" of the present invention. The fixed wall plate 51, the movable wall plate 52, and the partition member 53 are long members for forming two cooling spaces S (the 1 st cooling space Sa and the 2 nd cooling space Sb). As shown in fig. 8, the fixed wall plate 51, the movable wall plate 52, and the partition member 53 extend long in a direction orthogonal to the height direction and intersecting the machine body longitudinal direction. In the cooling unit 31A, a movable wall plate 52, a partition member 53, and a fixed wall plate 51 are arranged side by side in this order from one side in the machine body longitudinal direction. That is, the movable wall plate 52 is disposed at the position closest to one side in the machine body longitudinal direction. The partition member 53 is disposed on the other side of the movable wall plate 52 in the machine body longitudinal direction, and is adjacent to the movable wall plate 52. The fixed wall plate 51 is disposed on the other side of the partition member 53 in the machine body longitudinal direction, and is adjacent to the partition member 53. In the cooling unit 31B, these components are arranged in reverse order in the machine body longitudinal direction (see the fixed wall plate 56, the movable wall plate 57, and the partition member 58 in fig. 4).

Next, the fixed wall plate 51 will be described in more detail. As shown in fig. 9 and 10, the fixed wall plate 51 has a substantially C-shaped cross section. That is, in the cross section shown in fig. 9 and 10, the fixed wall plate 51 has a base end portion 61, an intermediate portion 62, and a tip end portion 63.

The base end portion 61 is a portion that is disposed at one end in the height direction of the fixed wall plate 51 and extends along the machine body longitudinal direction. The base end portion 61 is fixed to the intake duct 32 by, for example, a screw not shown. More specifically, a wall 33 extending in the longitudinal direction of the body is formed at the other end of the intake duct 32 in the height direction. Base end portion 61 is screwed to wall portion 33. The intermediate portion 62 is a portion extending from one end portion of the base end portion 61 in the machine body longitudinal direction to the other end portion in the height direction. A wall surface 64 (the 2 nd wall surface of the present invention) extending in the height direction is formed on one side of the intermediate portion 62 in the machine body longitudinal direction. The wall surface 64 is a surface for forming the 2 nd cooling space Sb in the cooling unit 31A. The wall surface 64 is provided with a plurality of contact bodies 65 (see fig. 10 and 11) arranged apart from each other in the yarn running direction. The contact body 65 is configured to positively contact the running wire Y (here, the 2 nd wire Yb) with the contact body 65. This can prevent the 2 nd wire Yb from accidentally coming into contact with the portion of the wall surface 64 where the contact 65 is not provided. A plurality of through holes 66 (see fig. 9 and 10) penetrating in the longitudinal direction of the body are formed in the intermediate portion 62. The through hole 66 is a positioning hole through which a positioning pin 97b described later is inserted. The front end portion 63 extends from the other end portion in the height direction of the intermediate portion 62 to the other side in the longitudinal direction of the body.

Next, the movable wall plate 52 will be described in more detail. As shown in fig. 9 and 10, the movable wall plate 52 is a member having a substantially C-shaped cross section opposite to the fixed wall plate 51. That is, in the cross-sections shown in fig. 9 and 10, the movable wall plate 52 has a base end portion 71, an intermediate portion 72, and a tip end portion 73.

The base end portion 71 is a portion that is disposed at one end portion in the height direction of the movable wall plate 52 and extends along the machine body longitudinal direction. The intermediate portion 72 is a portion extending from the other end portion of the base end portion 71 in the machine body longitudinal direction to the other side in the height direction. A wall surface 74 (the 1 st wall surface in the present invention) extending in the height direction is formed on the other side of the intermediate portion 72 in the machine body longitudinal direction. The wall surface 74 is a surface for forming the 1 st cooling space Sa in the cooling unit 31A. The wall surface 74 is provided with a plurality of contact bodies 75 (see fig. 10 and 11) arranged apart from each other in the yarn running direction. The contact 75 is configured to positively contact the 1 st wire Ya that is traveling with the contact 75. This can prevent the 1 st yarn Ya from accidentally coming into contact with the portion of the wall surface 74 where the contact 75 is not provided. A plurality of through holes 76 (see fig. 9 and 10) penetrating in the longitudinal direction of the body are formed in the intermediate portion 72. The through hole 76 is a positioning hole through which a positioning pin 97a described later is inserted. The distal end portion 73 is a portion extending from the other end portion in the height direction of the intermediate portion 72 to one side in the longitudinal direction of the body.

The movable wall plate 52 is attached to, for example, a plurality of spring units 54 (see fig. 4, 5, 9, and 10). Thereby, the movable wall plate 52 is movable at least in the machine body longitudinal direction with respect to the fixed wall plate 51. The movable wall plate 52 is movable between an operating position (see solid lines in fig. 4 and 5 and fig. 9) and a detached position (two-dot chain lines in fig. 4 and 5 and fig. 10). The operation position is a position of the movable wall plate 52 when the false twist texturing machine 1 is operating. The removal position is a position of the movable wall plate 52 when the partition member 53 is removed from the cooling unit 31A (described in detail later). The spring unit 54 is provided on one side of the movable wall plate 52 in the machine body longitudinal direction in the cooling unit 31A. In the cooling unit 31B, a spring unit 59 (see fig. 4) having the same configuration as the spring unit 54 is provided on the other side in the machine body longitudinal direction of the movable wall plate 57.

The structure of the spring unit 54 will be described in detail with reference to fig. 4, 9, and 10. The spring unit 54 is an urging unit for urging the movable wall plate 52 toward the fixed wall plate 51. As shown in fig. 4, the spring unit 54 has, for example, a torsion spring 81, a fixing member 82, and a restricting pin 83. The torsion spring 81 has a coil portion (not shown), a fixed arm 84 provided at one end of the coil portion, and a movable arm 85 provided at the other end of the coil portion. The spiral portion is fixed to the intake duct 32 by a fixing member 82. The movement of the fixing arm 84 is restricted by a restricting pin 83 fixed to the suction pipe 32. The movable arm 85 is attached to the movable wall plate 52, for example, and supports the movable wall plate 52.

Next, the partition member 53 will be described in more detail with reference to fig. 9 to 11. The partition member 53 is a member for partitioning the 1 st cooling space Sa and the 2 nd cooling space Sb in the machine body longitudinal direction. The partition member 53 is disposed between the fixed wall plate 51 and the movable wall plate 52 in the machine body longitudinal direction. The partition member 53 is configured to be attachable to and detachable from the cooling unit 31A (details will be described later). The partition member 53 includes, for example, a 1 st partition plate 86a, a 2 nd partition plate 86b, and a plurality of coupling members 87. The 1 st partition plate 86a and the 2 nd partition plate 86b are coupled by a plurality of coupling members 87. The 1 st cooling space Sa is formed by the 1 st partition plate 86a and the movable wall plate 52. The 2 nd cooling space Sb is formed by the 2 nd partition plate 86b and the fixed wall plate 51. The 1 st cooling space Sa and the 2 nd cooling space Sb are arranged side by side in the machine longitudinal direction. The 1 st cooling space Sa and the 2 nd cooling space Sb are connected to the intake space Ss, respectively.

The 1 st partition plate 86a is an elongated plate member extending at least in the orthogonal direction (see fig. 11). The 1 st partition plate 86a is disposed at one end of the partition member 53 in the machine body longitudinal direction. The 1 st partition plate 86a is fixed to the coupling member 87 by, for example, a screw not shown. The 1 st partition plate 86a includes a 1 st partition portion 88a for forming the 1 st cooling space Sa, and a 1 st thread insertion guide portion 89a (see fig. 9 and 10) disposed on the other side in the height direction of the 1 st partition portion 88 a.

The 1 st partition portion 88a has a 1 st partition surface 90a. The 1 st partition surface 90a is disposed on the other side of the wall surface 74 in the machine length direction, and faces the wall surface 74 in the machine length direction. The 1 st cooling space Sa is formed by the 1 st partition surface 90a and the wall surface 74. The 1 st cooling space Sa and the suction space Ss are connected via a 1 st suction slit 34a formed in the wall portion 33 of the suction duct 32. The 1 st separating surface 90a is provided with a plurality of contact bodies 91a arranged apart from each other in the wire running direction. The plurality of contact bodies 91a and the plurality of contact bodies 75 are arranged in a zigzag shape when viewed from the height direction (see fig. 11). The contact 91a is configured to positively contact the 1 st wire Ya with the contact 91a. This can prevent the 1 st yarn Ya from accidentally coming into contact with the portion of the 1 st partition surface 90a where the contact 91a is not provided. Further, on one side of the 1 st partition surface 90a in the machine body longitudinal direction, for example, a spacer 92a (see fig. 10) for defining a predetermined interval between the 1 st partition surface 90a and the wall surface 74 is provided. The 1 st partition 88a is provided with a plurality of through holes 93a, 94a (see fig. 9 and 10) that penetrate along the longitudinal direction of the body. The through hole 93a is used for inserting a 1 st wire guide 96a described later. The through hole 94a is for inserting a positioning pin 97a described later.

The 1 st wire insertion guide portion 89a is disposed on the other side in the height direction of the 1 st partition portion 88 a. The 1 st wire insertion guide portion 89a protrudes toward the other side in the height direction (i.e., the side of the working space Sw) and toward the other side in the machine body longitudinal direction (i.e., the side of the 2 nd partition plate 86 b) than the 1 st partition portion 88 a.

The 2 nd partition plate 86b is an elongated plate member extending at least in the orthogonal direction (see fig. 11). The 2 nd partition plate 86b is disposed at the other end of the partition member 53 in the machine body longitudinal direction. The 2 nd partition plate 86b is fixed to the coupling member 87 by, for example, a screw not shown. The 2 nd partition plate 86b includes a 2 nd partition portion 88b for forming the 2 nd cooling space Sb, and a 2 nd wire insertion guide portion 89b disposed on the other side in the height direction of the 2 nd partition portion 88b (see fig. 9 and 10).

The 2 nd partition portion 88b is formed with a 2 nd partition surface 90b. The No. 2 partition surface 90b is disposed on one side of the wall surface 64 in the machine length direction, and faces the wall surface 64 in the machine length direction. The 2 nd cooling space Sb is formed by the 2 nd partition surface 90b and the wall surface 64. The 2 nd cooling space Sb and the intake space Ss are connected via a 2 nd intake slit 34b formed in the wall portion 33 of the intake duct 32. The 2 nd separating surface 90b is provided with a plurality of contact bodies 91b arranged apart from each other in the wire running direction. The plurality of contacts 91b and the plurality of contacts 65 are arranged in a zigzag shape when viewed from the height direction (see fig. 11). The contact 91b is configured to positively contact the 2 nd wire Yb with the contact 91b. Thereby, the 2 nd wire Yb can be prevented from being accidentally brought into contact with the portion of the 2 nd separating surface 90b where the contact 91b is not provided. A spacer 92b (see fig. 10) similar to the spacer 92a is provided on one side of the 2 nd partition surface 90b in the longitudinal direction of the body. The 2 nd partition 88b is provided with a plurality of through holes 93b and 94b (see fig. 9 and 10) that penetrate along the longitudinal direction of the body. The through hole 93b is for inserting a second thread guide 96b described later. The through hole 94b is for insertion of a positioning pin 97b described later.

The 2 nd wire insertion guide portion 89b is disposed on the other side in the height direction of the 2 nd partition portion 88 b. The 2 nd wire insertion guide portion 89b protrudes toward the other side in the height direction (i.e., the side of the working space Sw) and toward one side in the machine body longitudinal direction (i.e., the side of the 1 st partition plate 86 a) than the 2 nd partition portion 88 b.

The plurality of coupling members 87 are configured to couple the 1 st partition plate 86a and the 2 nd partition plate 86 b. The plurality of coupling members 87 are disposed between the 1 st partition plate 86a and the 2 nd partition plate 86b in the machine body longitudinal direction. As shown in fig. 9 to 11, the 1 st wire guide 96a, the 2 nd wire guide 96b, and the positioning pins 97a, 97b are provided to each of the plurality of coupling members 87.

The 1 st yarn guide 96a is configured to guide the 1 st yarn Ya to the downstream side in the yarn running direction. The 1 st wire guide 96a is attached to one side portion of the coupling member 87 in the body longitudinal direction via a spring 98a, for example. The 1 st thread guide 96a is inserted through the through hole 93a of the 1 st partition plate 86a and projects to one side in the longitudinal direction of the living body. The 1 st wire guide 96a is configured to be movable in the longitudinal direction of the machine body by expansion and contraction of a spring 98 a. Specifically, when the 1 st wire guide 96a is pressed by the wall surface 74 of the movable wall plate 52, the spring 98a contracts. When the 1 st wire guide 96a is moved away from the wall surface 74, the spring 98a returns to the initial state.

The 2 nd wire guide 96b is configured to guide the 2 nd wire Yb to the downstream side in the wire running direction. The 2 nd wire guide 96b is attached to the other side portion of the coupling member 87 in the body longitudinal direction via a spring 98b, for example. The 2 nd thread guide 96b is inserted through the through hole 93b of the 2 nd partition plate 86b and projects toward the other side in the machine body longitudinal direction. Like the 1 st wire guide 96a, the 2 nd wire guide 96b is configured to be movable in the longitudinal direction of the machine body by expansion and contraction of the spring 98 b.

The positioning pin 97a is used to position the coupling member 87 and the movable wall plate 52. The positioning pin 97a is fixed to one surface of the coupling member 87 in the longitudinal direction of the body, for example. The positioning pin 97a is inserted through the through hole 94a of the 1 st partition plate 86a and protrudes to one side in the machine body longitudinal direction. The positioning pin 97a is configured to be inserted through the through hole 76 of the movable wall plate 52. The positioning pin 97b is used to align the connecting member 87 and the fixed wall plate 51. The positioning pin 97b is fixed to, for example, the other surface of the coupling member 87 in the longitudinal direction of the body. The positioning pin 97b is inserted through the through hole 94b of the 2 nd partition plate 86b and projects toward the other side in the machine longitudinal direction. The positioning pin 97b is configured to be inserted through the through hole 66 of the fixed wall plate 51.

When the movable wall plate 52 is located at the operating position, the partition member 53 having the above-described structure is supported by the fixed wall plate 51 and the movable wall plate 52. More specifically, when positioning pin 97a is inserted through hole 76 and positioning pin 97b is inserted through hole 66, partition member 53 is supported by both ends of fixed wall plate 51 and movable wall plate 52 (see fig. 9). In other words, the partition member 53 is not fixed to the intake duct 32, unlike the fixed wall plate 51. When the movable wall plate 52 is located at the detached position, the partition member 53 can be detached from the cooling unit 31A (see fig. 10). That is, the partition member 53 is attachable to and detachable from the cooling unit 31A. In other words, the partition member 53 can move relative to the fixed wall plate 51 and the movable wall plate 52.

In the cooling unit 31A having the above configuration, the 1 st cooling space Sa and the 2 nd cooling space Sb in the form of slits arranged side by side in the machine longitudinal direction are formed when the false twisting machine 1 is operated. In the present embodiment, the interval between the 1 st cooling space Sa and the 2 nd cooling space Sb in the machine longitudinal direction (i.e., the interval between the 1 st yarn Ya and the 2 nd yarn Yb in the machine longitudinal direction) is constant. That is, in the present embodiment, the interval does not change depending on the position in the direction in which the cooling unit 31A extends. Further, the interval at the upstream end of the cooling unit 31A in the wire traveling direction is set to WC1 (refer to fig. 4). When more strictly defined, WC1 is a distance in the body length direction between the center in the body length direction of the end on the side (the 1 st heating means 13 side) in the orthogonal direction of the 1 st cooling space Sa and the center in the body length direction of the end on the side in the orthogonal direction of the 2 nd cooling space Sb. In the present embodiment, the position of the end portion on the 1 st cooling space Sa side and the position of the end portion on the 2 nd cooling space Sb side substantially coincide with each other in the orthogonal direction. In this case, WC1 is preferably substantially equal to the distance W1 (see fig. 4) or smaller than the distance W1. That is, WC1. Ltoreq.W 1 is preferred. Further, the interval at the downstream end of the cooling unit 31A in the wire traveling direction is set to WC2 (refer to fig. 5). When more strictly defined, WC2 is a distance in the machine length direction between the center in the machine length direction of the end on the other side (the false twisting device 15 side) in the direction orthogonal to the 1 st cooling space Sa and the center in the machine length direction of the end on the other side in the direction orthogonal to the 2 nd cooling space Sb. In the present embodiment, the position of the other end of the 1 st cooling space Sa and the position of the other end of the 2 nd cooling space Sb substantially coincide with each other in the orthogonal direction. At this time, WC2 is preferably substantially equal to the above-described interval W2 (see fig. 5) or larger than the interval W2. That is, W2. Ltoreq.WC 2 is preferred. Thereby, the bending of the wire passage can be effectively suppressed. In the present embodiment, the following relationship holds.

W2<WC2＝WC1<W1

In this configuration, when the yarn hooking operation (described later) is performed to the cooling unit 31A, the yarn hooking operation can be performed while both the 1 st yarn Ya and the 2 nd yarn Yb are maintained substantially linearly. That is, when the yarn hooking operation is performed on the cooling unit 31A, it is almost unnecessary to bend the 1 st and 2 nd yarns Ya, yb. Therefore, the 1 st filament Ya and the 2 nd filament Yb can be easily threaded simultaneously to the cooling unit 31A.

(Silk hanging work)

In the present embodiment, when the yarn threading operation is performed to the false twist processing machine 1, the yarn Y is hooked to the false twist device 15, and then the yarn Y is hooked to the cooling device 14 and the 1 st heating device 13. When the yarn is threaded into the cooling device 14 and the 1 st heating device 13, for example, an operator moves the yarn Y upward using an air jet device not shown. Alternatively, the yarn Y may be moved upward by an air jet robot that can be automatically operated without human hands. The reason for this is that, in the false twist texturing machine 1 of the present embodiment, the upstream end portion of the 1 st heating device 13 in the yarn running direction is high in the vertical direction, and it is difficult for the hand of the operator to reach the upstream end portion. When the yarn is threaded by the above-described means, the 1 st yarn Ya is guided along the 1 st yarn insertion guide portion 89a, and enters the 1 st cooling space Sa through the 1 st entrance 95 a. Further, the 2 nd wire Yb is guided along the 2 nd wire insertion guide portion 89b, and enters the 2 nd cooling space Sb through the 2 nd inlet 95b. In addition, during the stringing operation, the operator does not need to operate the cooling unit 31A (that is, does not need to move the movable wall plate 52 and the partition member 53).

Further, as described above, W2< WC2= WC1< W1, so that the threading operation can be performed while both the 1 st wire Ya and the 2 nd wire Yb are maintained substantially straight when the threading operation is performed to the cooling unit 31A. That is, when the yarn hooking operation is performed on the cooling unit 31A, it is almost unnecessary to bend the 1 st and 2 nd yarns Ya, yb.

(maintenance)

When performing maintenance such as cleaning of the cooling device 14, the operator performs an operation such as moving the movable wall plate 52 from the operating position to the detaching position and detaching the partition member 53 from the cooling unit 31A. After the cleaning of the partition member 53 is completed, the operator mounts the partition member 53 on the cooling unit 31A. More specifically, the operator inserts the positioning pin 97b of the partition member 53 into the through hole 66 in a state where the movable wall plate 52 is located at the detached position. Thereafter, the operator moves the movable wall plate 52 to the operating position, and inserts the positioning pin 97a into the through hole 76. Thus, the partition member 53 is supported by both ends of the fixed wall plate 51 and the movable wall plate 52.

As described above, in the false twisting device 15 provided in the false twisting machine 1 according to the present embodiment, the 1 st yarn Ya is sandwiched between the 1 st endless belt 46a and the 1 st contact surface 41a, and the 2 nd yarn Yb is sandwiched between the 2 nd endless belt 46b and the 2 nd contact surface 41b. This can reliably twist the 1 st and 2 nd filaments Ya and Yb. Further, since the 1 st contact surface 41a and the 2 nd contact surface 41b are formed on the same circular plate 41, the interval between the 1 st yarn Ya and the 2 nd yarn Yb can be made small in the false twisting device 15. Thus, more threads Y can be twisted in a smaller space. In the false twisting device 15, the position where the 1 st yarn Ya is false twisted and the position where the 2 nd yarn Yb is false twisted can be made close to each other. Therefore, it is possible to suppress a large difference between the yarn passage of the 1 st yarn Ya and the yarn passage of the 2 nd yarn Yb (in addition, a variation in yarn quality between the 1 st yarn Ya and the 2 nd yarn Yb due to the influence thereof).

In addition, in the cooling device 14 provided in the false twist texturing machine 1 according to the present embodiment, the 1 st yarn Ya and the 2 nd yarn Yb can be reliably cooled by the cooling air. Further, since the 1 st cooling space Sa and the 2 nd cooling space Sb are formed in the same cooling unit 31A, the interval between the 1 st filament Ya and the 2 nd filament Yb can be reduced in the cooling device 14. Thus, more filaments Y can be cooled in a smaller space. Further, as described above, since the interval between the 1 st filament Ya and the 2 nd filament Yb can be made small, it is possible to suppress a large difference between the filament passage of the 1 st filament Ya and the filament passage of the 2 nd filament Yb (in addition, the above-described variation in the quality of the filament due to the influence thereof).

As described above, even when the coarse yarn Y is false-twisted, it is possible to ensure good yarn quality while suppressing deterioration of production efficiency and homogeneity.

The 1 st cooling space Sa and the 2 nd cooling space Sb are arranged side by side in the longitudinal direction of the machine body. Therefore, when the 1 st yarn Ya and the 2 nd yarn Yb are fed from the cooling device 14 to the false twisting device 15, the state in which the 1 st yarn Ya and the 2 nd yarn Yb are aligned in the longitudinal direction of the body can be maintained. Thus, for example, compared to the case where the 1 st cooling space Sa and the 2 nd cooling space Sb are arranged side by side in a direction different from the longitudinal direction of the body, the difference between the yarn passage of the 1 st yarn Ya and the yarn passage of the 2 nd yarn Yb can be further suppressed. Therefore, the variation in the yarn quality between the 1 st yarn Ya and the 2 nd yarn Yb can be effectively reduced.

Further, WC2 is equal to WC1 (i.e., WC2 is smaller). Therefore, when the 1 st and 2 nd yarns Ya and Yb are fed from the cooling device 14 to the false twisting device 15, the bending of the 1 st and 2 nd yarns Ya and Yb can be suppressed. Therefore, the quality of the yarn can be prevented from being degraded.

In the present embodiment, W2< WC2= WC1< W1. Therefore, when the yarn hooking operation is performed to the cooling unit 31A, the yarn hooking operation can be performed while maintaining both the 1 st yarn Ya and the 2 nd yarn Yb substantially straight. That is, when the yarn hooking operation is performed on the cooling unit 31A, it is almost unnecessary to bend the 1 st and 2 nd yarns Ya, yb. Therefore, the 1 st wire Ya and the 2 nd wire Yb can be easily threaded simultaneously to the cooling unit 31A.

Further, the 1 st cooling space Sa and the 2 nd cooling space Sb are partitioned by a partition member 53. Thus, compared to a configuration in which the partitioning member 53 is not provided and the 1 st cooling space Sa and the 2 nd cooling space Sb are not partitioned, the 1 st filament Ya and the 2 nd filament Yb can be reliably prevented from being intertwined with each other for some reason.

Further, the 1 st cooling space Sa and the 2 nd cooling space Sb are connected to (i.e., connected in parallel with) the intake space Ss extending in the longitudinal direction of the body, respectively. Therefore, the cooling air can be supplied substantially uniformly to the 1 st cooling space Sa and the 2 nd cooling space Sb by a simple structure.

Further, the 1 st cooling space Sa is formed by the wall surface 74 of the movable wall plate 52 and the 1 st partition surface 90a of the 1 st partition 88a, and the 2 nd cooling space Sb is formed by the wall surface 64 of the fixed wall plate 51 and the 2 nd partition surface 90b of the 2 nd partition 88 b. In this way, the 1 st cooling space Sa and the 2 nd cooling space Sb can be formed by a simple structure.

The 1 st partition surface 90a is disposed so as to face the wall surface 74 in the machine longitudinal direction, and the 2 nd partition surface 90b is disposed so as to face the wall surface 64 in the machine longitudinal direction. This can narrow the 1 st inlet 95a and the 2 nd inlet 95b. Thus, the 1 st filament Ya can be suppressed from falling off from the 1 st cooling space Sa, and the 2 nd filament Yb can be suppressed from falling off from the 2 nd cooling space Sb.

The cooling unit 31A includes the 1 st wire guide 96a and the 2 nd wire guide 96b. Thereby, the 1 st yarn Ya is guided to the downstream side in the yarn running direction by the 1 st yarn guide 96a, and the 2 nd yarn Yb is guided to the downstream side in the yarn running direction by the 2 nd yarn guide 96b. That is, the cooling unit 31A is not configured to make the yarn Y contact the partition surface and the wall surface as much as possible. Therefore, when the yarn Y is twisted by the false twisting device 15, the yarn Y can be suppressed from rolling along the wall surface or the partition surface. Therefore, the yarn Y can be prevented from falling from the cooling space S.

The partition member 53 is supported by the fixed wall plate 51 and the movable wall plate 52. Therefore, even when the partition member 53 cannot be attached to the intake duct 32, the partition member 53 can be normally disposed. Further, more specifically, the partition member 53 is supported by both ends. Thus, the partition member 53 can be stably supported.

The partition member 53 is attachable to and detachable from (i.e., movable relative to) the fixed wall plate 51 and the movable wall plate 52. This ensures a large space for cleaning the fixed wall plate 51, the movable wall plate 52, and the partition member 53. Therefore, the efficiency of cleaning and the like can be improved. Further, since the partition member 53 can be completely separated from the cooling unit 31A, the work efficiency of cleaning and the like can be greatly improved.

The position of the fixed wall plate 51 is fixed with respect to the intake duct 32, and the movable wall plate 52 and the partition member 53 are movable with respect to the fixed wall plate 51. This makes it possible to provide the cooling unit 31B that is line-symmetric with the cooling unit 31A about the straight line L as the axis of symmetry. Even if such a cooling unit 31B is provided, the two members (fixed wall plates 51, 56) disposed adjacent to each other do not move. Therefore, when the members are moved during cleaning, interference between the members can be avoided.

During the yarn threading operation, the 1 st yarn Ya may be moved along the 1 st yarn insertion guide portion 89a, and the 2 nd yarn Yb may be moved along the 2 nd yarn insertion guide portion 89 b. Therefore, the success rate of the yarn hanging can be improved.

Further, as in the present embodiment, when the upstream end portion of the 1 st heating device 13 in the yarn running direction is at a high position in the vertical direction, the yarn Y is hooked to the cooling device 14 and the 1 st heating device 13 using a device (not shown) for moving the yarn Y upward. In performing such a yarn threading operation, it is particularly effective to increase the success rate of yarn threading by the 1 st and 2 nd yarn insertion guide portions 89a and 89 b.

Next, a modification of the above embodiment will be described. Note that the same reference numerals are given to elements having the same configurations as those of the above embodiment, and the description thereof will be omitted as appropriate.

(1) In the above embodiment, the partition member 53 is supported by both ends of the fixed wall plate 51 and the movable wall plate 52. However, the present invention is not limited thereto. The partition member 53 may be supported by one of the fixed wall plate 51 and the movable wall plate 52 in a cantilever manner.

(2) In the embodiments described above, the partition member 53 is supported by at least one of the fixed wall plate 51 and the movable wall plate 52. However, the present invention is not limited thereto. The partition member 53 may be directly attached to the intake duct 32, for example.

(3) In the embodiments described above, the partition member 53 is attachable to and detachable from the cooling unit 31A. However, the present invention is not limited thereto. The partition member 53 may be configured to be movable in the longitudinal direction of the machine body while being supported by at least one of the fixed wall plate 51 and the movable wall plate 52, for example.

(4) In the embodiments described above, the movable wall plate 52 and the partition member 53 are movable relative to the fixed wall plate 51 and the intake duct 32. However, the present invention is not limited thereto. For example, the partition member 53 may be fixed to the intake duct 32. In this case, a wall member (not shown) that is movable with respect to the intake duct 32 and the partition member 53 may be provided instead of the fixed wall plate 51. The false twist processing machine (not shown) configured as described above corresponds to the "false twist processing machine configured such that the partition member is relatively movable with respect to the 1 st wall member and the 2 nd wall member" according to the present invention.

(5) In the embodiments described above, the partition member 53 is configured to be movable relative to the 1 st wall member and the 2 nd wall member of the present invention. However, the present invention is not limited thereto. The position of any of these components may also be fixed relative to the suction duct 32.

(6) In the embodiments described above, the cooling device 14 is a non-contact type device having the 1 st wire guide 96a and the 2 nd wire guide 96b. However, the present invention is not limited thereto. For example, the cooling device 14 may be configured to bring the yarn Y into active contact with a wall surface (not shown) as in the cooling device disclosed in japanese patent application laid-open No. 11-107084. In addition, in such a configuration, some studies for preventing the yarn Y from falling off from the cooling device 14 are preferably performed.

(7) In the embodiments described above, the 1 st partition surface 90a is disposed so as to face the wall surface 74 in the machine longitudinal direction, and the 2 nd partition surface 90b is disposed so as to face the wall surface 64 in the machine longitudinal direction. That is, the 1 st partition surface 90a is substantially parallel to the wall surface 74, and the 2 nd partition surface 90b is substantially parallel to the wall surface 64. However, the present invention is not limited thereto. For example, the 1 st partition surface 90a and the wall surface 74 may be arranged such that the distance in the longitudinal direction of the body becomes longer toward the other side in the height direction. The same applies to the No. 2 separating surface 90b and the wall surface 64.

(8) In the embodiments described above, the cooling unit 31A includes the fixed wall plate 51, the movable wall plate 52, and the partition member 53. However, the present invention is not limited thereto. For example, instead of the fixed wall plate 51, the movable wall plate 52, and the partition member 53, one member having the same function as these members may be attached to the intake duct 32.

(9) In the embodiments described above, the 1 st cooling space Sa and the 2 nd cooling space Sb are partitioned by the partition member 53, but the present invention is not limited thereto. For example, a plurality of pins (not shown) extending in the height direction may be arranged in parallel in the yarn running direction between the 1 st cooling space Sa and the 2 nd cooling space Sb. These pins may also be arranged apart from each other in the running direction of the thread. This also restricts the movement of the 1 st and 2 nd filaments Ya and Yb in the longitudinal direction of the body, thereby preventing the 1 st and 2 nd filaments Ya and Yb from intertwining with each other.

(10) In the above-described embodiments, the 1 st cooling space Sa and the 2 nd cooling space Sb are connected to (i.e., connected in parallel with) the intake space Ss extending in the longitudinal direction of the housing. However, the present invention is not limited thereto. For example, the 1 st cooling space Sa and the 2 nd cooling space Sb may be connected in series in the intake direction in which the cooling air is drawn into the intake space Ss. That is, one of the 1 st cooling space Sa and the 2 nd cooling space Sb may be disposed upstream of the other in the air intake direction.

(11) In the embodiments described above, the interval between the 1 st cooling space Sa and the 2 nd cooling space Sb in the machine longitudinal direction (i.e., the interval between the 1 st yarn Ya and the 2 nd yarn Yb in the machine longitudinal direction) is constant. That is, in the cooling unit 31A, the 1 st filament Ya is substantially parallel to the 2 nd filament Yb (further in other words, WC1= WC 2). However, the present invention is not limited thereto. In the cooling unit 31A, the 1 st wire Ya and the 2 nd wire Yb may not be substantially parallel. For example, the interval at the downstream end of the wire traveling direction of the cooling unit 31A may also be narrower than the interval at the upstream end of the wire traveling direction (WC 2< WC 1). That is, WC2. Ltoreq.WC 1 may be used. Alternatively, WC1< WC2 may be used.

In the orthogonal direction, the position of the 1 st cooling space Sa side end portion may not substantially coincide with the position of the 2 nd cooling space Sb side end portion. The position of the other end of the 1 st cooling space Sa and the position of the other end of the 2 nd cooling space Sb may not substantially coincide with each other in the orthogonal direction. In this case, the strict definitions of WC1 and WC2 are also the same as those described above.

(12) The relationship among W1, W2, WC1, and WC2 may be other than W2< WC2= WC1< W1. For example, as described above, the yarn guides G1 and G2 and the cooling unit 31A may be configured to satisfy any of the following relationships in order to facilitate the simultaneous yarn hooking of the 1 st yarn Ya and the 2 nd yarn Yb to the cooling unit 31A. That is, W2. Ltoreq. WC1. Ltoreq. W1 may be used. Alternatively, W1 is not less than WC1 but not more than WC2 but not more than W2. In this case, unlike the embodiments described above, W2 may be larger than W1.

Alternatively, the relationship among W1, W2, WC1, and WC2 is not limited to the above-described relationship, regardless of whether the 1 st filament Ya and the 2 nd filament Yb are simultaneously threaded to the cooling unit 31A.

(13) In the embodiments described above, the 1 st cooling space Sa and the 2 nd cooling space Sb are arranged side by side in the machine longitudinal direction, but the present invention is not limited to this. For example, as in the cooling device (not shown) disclosed in japanese patent No. 4462751, the 1 st cooling space (not shown) and the 2 nd cooling space (not shown) may be arranged side by side in the height direction.

(14) In the embodiments described above, the plurality of cooling units 31 can cool the two yarns Y, respectively. However, the present invention is not limited thereto. Hereinafter, description will be given with reference to fig. 12. For example, as shown in fig. 12, instead of the cooling unit 31, a cooling unit 31M1 configured to cool 3 yarns Y running side by side in the machine longitudinal direction may be provided. The cooling unit 31M1 includes, for example, the fixed wall plate 51, the partition member 53, a partition member 53A, and the movable wall plate 52. The partition member 53A is disposed on the opposite side of the fixed wall plate 51 in the machine longitudinal direction with the partition member 53 therebetween. In this modification, the movable wall plate 52 is disposed on the opposite side of the fixed wall plate 51 in the machine longitudinal direction with the partition members 53 and 53A interposed therebetween.

The partition member 53A is a member extending at least in the orthogonal direction. The partition member 53A has a substantially U-shaped cross section (see fig. 12) when viewed from the same direction as fig. 9. The partition member 53A has a partition portion 88c, a bottom portion 99, a partition portion 88d, a wire insertion guide portion 89c, and a wire insertion guide portion 89d. The partition 88c is a portion extending in the height direction. The partition portion 88c has a partition surface 90c disposed opposite to the 1 st partition surface 90a in the machine body longitudinal direction. The 1 st cooling space Sa is formed between the 1 st partition surface 90a and the partition surface 90c. The partition 88c is formed with a through hole 94c having substantially the same shape and size as the through holes 94a and 94 b. The bottom 99 is a portion connected to the partition 88c and in contact with the wall 33. The partition 88d is a portion connected to the bottom 99 and extending in the height direction. The partition portion 88d has a partition surface 90d disposed so as to face the wall surface 74 of the movable wall plate 52 in the machine body longitudinal direction. A cooling space Sd for cooling the filament Yd different from the 1 st filament Ya and the 2 nd filament Yb is formed between the wall surface 74 and the partition surface 90d. The partition 88d is formed with a through hole 94d having substantially the same shape and size as the through hole 94c. The wire insertion guide portion 89c is a portion connected to the partition portion 88c and extending in the height direction toward the side opposite to the bottom portion 99. The wire insertion guide portion 89d is a portion connected to the partition portion 88d and extends in the height direction to the side opposite to the bottom portion 99.

In the cooling unit 31M1, for example, an intake slit 34d that connects the intake space Ss and the cooling space Sd is formed in the wall portion 33. A connecting member 87A having the same structure as the connecting member 87 is fixed to the movable wall plate 52. A spacer 92d that defines the distance between the wall surface 74 and the partition surface 90d is provided between the wall surface 74 and the partition surface 90d in the machine longitudinal direction. A wire guide 96d having the same structure as the 2 nd wire guide 96b is attached to the coupling member 87A. A positioning pin 97d having the same structure as the positioning pin 97b is attached to the coupling member 87A.

(15) As still another modification, as shown in fig. 13, a cooling unit 31M2 configured to cool 4 yarns Y running side by side in the machine body longitudinal direction may be provided. Although the detailed description is omitted, in the cooling unit 31M2, for example, two partition members 53 may be provided with a partition member 53A interposed therebetween in the machine body longitudinal direction. Thus, the cooling unit 31M2 can form the cooling space Se for cooling the filament Ye different from the 1 st filament Ya, the 2 nd filament Yb, and the filament Yd. In this modification, an intake slit 34e connecting the intake space Ss and the cooling space Se is formed in the wall portion 33. Further, in the modification and the modification (13), each cooling unit (not shown) may be configured to be capable of simultaneously cooling 5 or more filaments Y.

Claims (16)

1. A false twist processing machine is configured to be capable of false twisting at least a 1 st yarn and a 2 nd yarn which are advancing, and is characterized by comprising:

a false twisting device configured to twist the 1 st and 2 nd yarns; and

a cooling device disposed upstream of the false twisting device in a yarn advancing direction in which the 1 st yarn and the 2 nd yarn advance, and configured to cool the 1 st yarn and the 2 nd yarn,

the false twisting device comprises a disk configured to rotate in a predetermined direction as a rotation axis direction, a 1 st belt unit arranged on one side of the disk in the predetermined direction, and a 2 nd belt unit arranged on the other side of the disk in the predetermined direction,

the disk has a 1 st contact surface disposed at the one end in the predetermined direction and a 2 nd contact surface disposed at the other end in the predetermined direction,

the 1 st band unit is configured to have a 1 st band member movable while contacting the 1 st thread, and to twist the 1 st thread by sandwiching the 1 st thread between the 1 st contact surface and the 1 st band member,

the 2 nd tape unit is configured to have a 2 nd tape member movable while contacting the 2 nd yarn, and to twist the 2 nd yarn by sandwiching the 2 nd yarn between the 2 nd contact surface and the 2 nd tape member,

the cooling device comprises:

a cooling unit in which a 1 st cooling space for cooling the 1 st filament and a 2 nd cooling space arranged in parallel with the 1 st cooling space and for cooling the 2 nd filament are formed; and

and an intake duct that forms an intake space connected to the 1 st cooling space and the 2 nd cooling space and supplies cooling air to the 1 st cooling space and the 2 nd cooling space.

2. The false twist texturing machine of claim 1,

the 1 st cooling space and the 2 nd cooling space are arranged side by side in the predetermined direction.

3. The false twist texturing machine of claim 2,

when the interval between the upstream end of the 1 st cooling space in the wire running direction and the upstream end of the 2 nd cooling space in the wire running direction is WC1 in the predetermined direction, and the interval between the downstream end of the 1 st cooling space in the wire running direction and the downstream end of the 2 nd cooling space in the wire running direction is WC2 in the predetermined direction, WC2 is not more than WC1.

4. A false twist texturing machine according to claim 2 or 3, characterized by comprising:

a heating device disposed upstream of the cooling device in the running direction of the yarn;

an upstream yarn guide member disposed between the heating device and the cooling device in the yarn advancing direction; and

a downstream yarn guide member disposed between the cooling device and the false twisting device in the yarn advancing direction,

the upstream thread guiding member is configured to define a distance W1 between the 1 st thread and the 2 nd thread in the predetermined direction,

the downstream yarn guiding member is configured such that a distance between the 1 st yarn and the 2 nd yarn in the predetermined direction is defined as W2,

when the distance between the upstream end of the 1 st cooling space in the yarn running direction and the upstream end of the 2 nd cooling space in the yarn running direction is WC1, and the distance between the downstream end of the 1 st cooling space in the yarn running direction and the downstream end of the 2 nd cooling space in the yarn running direction is WC2, W2 is not less than WC2 and not more than WC1 and not more than W1, or W1 is not less than WC1 and not more than WC2 and not more than W2.

5. A false twist texturing machine according to any one of claims 2 to 4,

the cooling unit includes a partition member that partitions the 1 st cooling space and the 2 nd cooling space in the predetermined direction.

6. The false twist texturing machine of claim 5,

the air suction space extends along the predetermined direction,

the 1 st cooling space and the 2 nd cooling space are connected to the intake space, respectively.

7. A false twist texturing machine according to claim 5 or 6,

the partition member includes:

a 1 st partition portion having a 1 st partition surface arranged on the one side in the predetermined direction so as to form the 1 st cooling space; and

a 2 nd partition portion having a 2 nd partition surface arranged on the other side in the predetermined direction so as to form the 2 nd cooling space,

the cooling unit includes:

a 1 st wall member having a 1 st wall surface arranged on the one side of the 1 st partition surface in the predetermined direction and forming the 1 st cooling space; and

and a 2 nd wall member having a 2 nd wall surface arranged on the other side of the 2 nd partition surface in the predetermined direction and forming the 2 nd cooling space.

8. The false twist texturing machine of claim 7,

the 1 st partition surface is disposed so as to face the 1 st wall surface in the predetermined direction,

the 2 nd partition surface is disposed so as to face the 2 nd wall surface in the predetermined direction.

9. A false twist texturing machine according to claim 7 or 8,

the cooling unit includes:

a 1 st thread guide disposed between the 1 st partition surface and the 1 st wall surface in the predetermined direction, and guiding the 1 st thread to a downstream side in the thread traveling direction; and

and a 2 nd yarn guide disposed between the 2 nd partition surface and the 2 nd wall surface in the predetermined direction, and guiding the 2 nd yarn to a downstream side in the yarn advancing direction.

10. A false twist texturing machine according to any one of claims 7 to 9,

the 1 st wall member and the 2 nd wall member are attached to the intake duct,

at least one of the 1 st wall member and the 2 nd wall member is configured to support the partition member.

11. The false twist texturing machine of claim 10,

both the 1 st wall member and the 2 nd wall member are configured to support the partition member.

12. A false twist texturing machine according to any one of claims 7 to 11,

at least the partition member is configured to be movable relative to the 1 st wall member and the 2 nd wall member.

13. The false twist texturing machine of claim 12,

one of the 1 st wall member and the 2 nd wall member is fixed in position with respect to the intake duct,

the partition member and the other of the 1 st wall member and the 2 nd wall member are movable with respect to the one of the 1 st wall member and the 2 nd wall member.

14. The false twist texturing machine of claim 12 or 13,

the partition member is configured to be attachable to and detachable from the cooling unit.

15. The false twist texturing machine of any one of claims 7 to 14,

when the direction orthogonal to both the longitudinal direction and the predetermined direction of the cooling unit is defined as the height direction,

the partition member includes:

a 1 st thread insertion guide portion protruding, at least in the height direction, toward a working space where the cooling device is to be subjected to a threading operation than the 1 st partition portion; and

the 2 nd thread insertion guide portion protrudes to the working space side than the 2 nd partition portion at least in the height direction.

16. The false twist texturing machine of claim 15,

a heating device disposed upstream of the cooling device in the running direction of the yarn, configured to heat the 1 st yarn and the 2 nd yarn,

the false twisting device, the cooling device and the heating device are arranged above the working space,

an upstream end portion of the heating device in the yarn running direction is disposed so as to be separated from the cooling device in the vertical direction to an upper side than a downstream end portion of the heating device in the yarn running direction.

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