TW202302949A

TW202302949A - Cooler and yarn processor

Info

Publication number: TW202302949A
Application number: TW111123832A
Authority: TW
Inventors: 今中昭仁; 北川重樹; 堀本幸
Original assignee: 日商Ｔｍｔ機械股份有限公司
Priority date: 2021-07-13
Filing date: 2022-06-27
Publication date: 2023-01-16
Also published as: JP2023012097A; CN115613174A; EP4119707A3; EP4119707A2

Abstract

Efficiency in cooling of a yarn is improved in a cooler that is configured to cool the yarn by cooling wind. A cooler 14 includes a cooling unit 31 in which a yarn running space S in which a yarn Y runs is formed and an intake duct 32 in which an intake space Ss connected to the yarn running space S is formed. The intake duct 32 includes a duct wall portion 34 in which one or more intake slit 38 is provided to extend in a unit longitudinal direction between the yarn running space S and the intake space Ss in a flow direction in which cooling wind flows. The cooling unit 31 includes paired unit wall plates 51 that are provided on one side of the duct wall portion 34 in the height direction. The paired unit wall plates 51 includes paired unit wall surfaces 55 which oppose each other in the width direction over the yarn running space S. The height in the height direction of each of the paired unit wall surfaces 55 is 30 mm or less.

Description

冷卻裝置以及絲線加工機Cooling device and wire processing machine

本發明涉及冷卻絲線的冷卻裝置以及具備該冷卻裝置的絲線加工機。The present invention relates to a cooling device for cooling a wire and a wire processing machine provided with the cooling device.

在專利文獻1中公開了設置於對行進中的絲線進行假撚加工的假撚加工機(絲線加工機)的冷卻裝置。更具體而言，冷卻裝置具有用於向絲線供給冷卻風的管道以及設置在管道下側的一對導絲器。在一對導絲器之間形成有供絲線行進的絲線行進空間，絲線行進空間經由形成於管道的下側部分的狹縫而與管道的內部空間(管道內空間)連接。當設置於管道的端部的排氣風扇(負壓生成裝置)旋轉時，在管道內空間中產生負壓。由此，氣體流入與管道內空間連接的絲線行進空間。這樣的氣體作為冷卻風而冷卻絲線。Patent Document 1 discloses a cooling device installed in a false twist processing machine (yarn processing machine) that performs false twist processing on a traveling yarn. More specifically, the cooling device has a duct for supplying cooling air to the yarn, and a pair of yarn guides provided on the lower side of the duct. A thread running space in which the thread runs is formed between the pair of yarn guides, and the thread running space is connected to the inner space of the pipe (pipe inner space) via a slit formed in the lower portion of the pipe. When the exhaust fan (negative pressure generating device) provided at the end of the duct rotates, negative pressure is generated in the duct inner space. As a result, the gas flows into the thread running space connected to the space inside the duct. Such gas cools the wire as cooling air.

專利文獻1：日本特開第2011-047074號公報Patent Document 1: Japanese Patent Application Laid-Open No. 2011-047074

近年來，例如以對比以往粗的絲線進行冷卻等為目的，要求進一步提高絲線的冷卻效率。在上述冷卻裝置中，為了提高絲線的冷卻效率，期望能夠提高冷卻風的速度(風速)。但是，本申請發明人發現了如下問題：即使簡單地增大排氣風扇的轉速(即，負壓生成裝置的輸出)來增大管道內空間的負壓，風速也難以變快。In recent years, for example, for the purpose of cooling thicker wires than conventional ones, it is required to further improve the cooling efficiency of the wires. In the above-mentioned cooling device, in order to improve the cooling efficiency of the wire, it is desired to increase the speed of the cooling air (wind speed). However, the inventors of the present application found a problem that even if the negative pressure in the space inside the duct is increased simply by increasing the rotational speed of the exhaust fan (that is, the output of the negative pressure generating device), the wind speed is difficult to increase.

[發明所欲解決之課題] [Problem to be Solved by the Invention]

本發明的目的在於，在通過冷卻風冷卻絲線的冷卻裝置中提高絲線的冷卻效率。 [用於解決課題的手段] An object of the present invention is to improve the cooling efficiency of a wire in a cooling device that cools the wire with cooling air. [Means used to solve the problem]

第1發明的冷卻裝置構成為，通過冷卻風對行進的絲線進行冷卻，其特徵在於，具備：冷卻單元，其形成為，供上述絲線行進的絲線行進空間沿著規定的長度方向延伸；以及管道，形成有與上述絲線行進空間連接的管道內空間，上述管道具有管道壁部，該管道壁部形成有在上述冷卻風流動的流動方向上配置在上述絲線行進空間與上述管道內空間之間且沿著上述長度方向延伸的1個以上的狹縫，上述冷卻單元具有在與上述長度方向正交的高度方向上配置在上述管道壁部的一側的一對單元壁部，上述一對單元壁部具有在與上述長度方向以及上述高度方向的雙方正交的寬度方向上隔著上述絲線行進空間而配置在相互相反側的一對單元壁面，上述一對單元壁面各自在上述高度方向上的長度為30mm以下。The cooling device according to the first aspect of the invention is configured to cool the running wire with cooling air, and is characterized by comprising: a cooling unit formed such that a wire running space in which the above-mentioned wire runs extends along a predetermined longitudinal direction; and a duct , forming a pipeline inner space connected with the above-mentioned wire running space, the above-mentioned pipeline has a pipeline wall portion, and the pipeline wall portion is formed to be arranged between the above-mentioned wire running space and the above-mentioned pipeline inner space in the flow direction of the cooling air flow and One or more slits extending along the longitudinal direction, the cooling unit has a pair of unit wall portions disposed on one side of the duct wall portion in a height direction perpendicular to the longitudinal direction, and the pair of unit walls The part has a pair of cell wall surfaces disposed on opposite sides of each other across the thread running space in a width direction perpendicular to both the longitudinal direction and the height direction, and the length of each of the pair of cell wall surfaces in the height direction is 30mm or less.

在本發明中，當在管道內空間中產生負壓(或者也可以是正壓)時，冷卻風流入與管道內空間連接的絲線行進空間(形成在一對單元壁面之間的空間)。冷卻風在絲線行進空間內主要沿著高度方向流動。此處，當形成冷卻風的流路的一對單元壁面在高度方向上較長時，冷卻風沿著高度方向流動時的流路阻力(摩擦阻力)較大，因此產生較大的壓力損失，冷卻風的速度(風速)會大幅度降低。關於這一點，在本發明中，一對單元壁面各自的高度方向上的長度(以下，為了便於說明也稱作壁面高度)為30mm以下。由此，冷卻風流動的流路變短。因此，能夠減小流路阻力而降低壓力損失，因此能夠得到較大的風速。因而，在通過冷卻風冷卻絲線的冷卻裝置中，能夠提高絲線的冷卻效率。In the present invention, when negative pressure (or positive pressure) is generated in the duct inner space, the cooling air flows into the thread running space (space formed between a pair of cell walls) connected to the duct inner space. The cooling air mainly flows along the height direction in the thread traveling space. Here, when the pair of cell wall surfaces forming the flow path of the cooling air is long in the height direction, the flow path resistance (frictional resistance) when the cooling air flows in the height direction is large, so a large pressure loss occurs, The speed of the cooling wind (wind speed) will be greatly reduced. In this regard, in the present invention, the length in the height direction of each of the pair of cell wall surfaces (hereinafter also referred to as wall surface height for convenience of description) is 30 mm or less. Accordingly, the flow path through which the cooling air flows is shortened. Therefore, flow path resistance can be reduced to reduce pressure loss, and thus a high wind speed can be obtained. Therefore, in the cooling device that cools the wires with the cooling air, the cooling efficiency of the wires can be improved.

第2發明的冷卻裝置構成為，通過冷卻風冷卻行進的絲線，其特徵在於，具備：冷卻單元，其形成為，供上述絲線行進的絲線行進空間沿著規定的長度方向延伸；以及管道，形成有與上述絲線行進空間連接的管道內空間，上述管道具有管道壁部，該管道壁部形成有在上述冷卻風流動的流動方向上配置在上述絲線行進空間與上述管道內空間之間且沿著上述長度方向延伸的1個以上的狹縫，上述冷卻單元具有在與上述長度方向正交的高度方向上配置在上述管道壁部的一側的一對單元壁部，上述一對單元壁部具有在與上述長度方向以及上述高度方向的雙方正交的寬度方向上隔著上述絲線行進空間而配置在相互相反側的一對單元壁面，在上述長度方向上，在配置有上述一對單元壁面的壁面配置區域內，上述管道壁部中的形成有上述1個以上的狹縫的1個以上的形成區域的長度總和比除了上述1個以上的形成區域以外的區域的長度總和長。The cooling device of the second invention is configured to cool the running wire by cooling air, and is characterized in that it includes: a cooling unit formed so that the wire running space in which the above-mentioned wire runs extends along a predetermined length direction; and a duct formed There is a duct inner space connected to the above-mentioned wire running space, and the above-mentioned duct has a duct wall portion, and the duct wall portion is formed with a pipe that is arranged between the above-mentioned wire running space and the above-mentioned duct inner space along the flow direction of the cooling air flow. The one or more slits extending in the longitudinal direction, the cooling unit having a pair of unit wall portions arranged on one side of the duct wall portion in the height direction perpendicular to the longitudinal direction, the pair of unit wall portions having In the width direction perpendicular to both of the above-mentioned longitudinal direction and the above-mentioned height direction, a pair of cell wall surfaces arranged on opposite sides of the above-mentioned thread running space are arranged, and in the above-mentioned longitudinal direction, on the side where the above-mentioned pair of cell wall surfaces are arranged In the wall arrangement region, the sum of the lengths of one or more formation regions in the duct wall portion where the one or more slits are formed is greater than the sum of lengths of regions other than the one or more formation regions.

在本發明中，在長度方向上，1個以上的形成區域的長度總和比除此之外的區域的長度總和長。由此，能夠增大1個以上的狹縫的剖面積(即，開口面積)的總和。因此，能夠減小流路阻力而降低壓力損失，因此能夠得到較大的風速。因而，能夠提高絲線的冷卻效率。另外，一個狹縫在長度方向上遍及壁面配置區域的整個區域形成的構成也包含在本發明中。In the present invention, in the longitudinal direction, the sum of the lengths of one or more formation regions is longer than the sum of the lengths of the other regions. Thereby, the sum of the cross-sectional areas (ie, opening areas) of one or more slits can be increased. Therefore, flow path resistance can be reduced to reduce pressure loss, and thus a high wind speed can be obtained. Therefore, the cooling efficiency of the wire can be improved. Also, a configuration in which one slit is formed over the entire wall arrangement region in the longitudinal direction is also included in the present invention.

第3發明的冷卻裝置的特徵在於，在上述第1發明中，在上述長度方向上，在配置有上述一對單元壁面的壁面配置區域內，上述管道壁部中的形成有上述1個以上的狹縫的1個以上的形成區域的長度總和比除了上述1個以上的形成區域以外的區域的長度總和長。A cooling device according to a third invention is characterized in that, in the above-mentioned first invention, in the wall arrangement region where the pair of unit wall surfaces are arranged in the longitudinal direction, one or more of the above-mentioned pipe wall portions are formed. The sum of the lengths of the one or more formation regions of the slit is longer than the sum of the lengths of the regions other than the above one or more formation regions.

在本發明中，與第2發明的構成相同，1個以上的形成區域的長度總和較長。由此，能夠進一步減小流路阻力而進一步降低壓力損失。因此，能夠得到更大的風速。因而，能夠進一步提高絲線的冷卻效率。In the present invention, as in the configuration of the second invention, the sum of the lengths of one or more formation regions is relatively long. Thereby, flow path resistance can be further reduced and pressure loss can be further reduced. Therefore, a higher wind speed can be obtained. Therefore, the cooling efficiency of the wire can be further improved.

第4發明的冷卻裝置的特徵在於，在上述第1或者第3發明中，上述一對單元壁面中的在上述寬度方向上相互面對的部分在上述寬度方向上的間隔為1mm以下。A cooling device according to a fourth invention, in the first or third invention, is characterized in that the distance between portions of the pair of cell walls facing each other in the width direction is 1 mm or less in the width direction.

本發明的「一對單元壁面中的在寬度方向上相互面對的部分」，是指一對單元壁面中相互大致平行的部分、且是在寬度方向上在一對單元壁面之間未配置其他部件的部分。一般情況下，如果流體的流量相同，則當流路的剖面積較小時，流體的流速較快。但是，當流路的寬度過窄時，由形成流路的壁面所導致的壓力損失變大，流體的流量變少。在本發明中，能夠通過降低壁面高度來降低由一對單元壁面所導致的壓力損失，因此即使減小一對單元壁面在寬度方向上的間隔，也能夠抑制由此導致的壓力損失的增加。因而，能夠減小絲線行進空間的與高度方向正交的剖面的面積，能夠進一步加快風速。The "parts facing each other in the width direction of a pair of unit wall surfaces" in the present invention refers to the parts of a pair of unit wall surfaces that are approximately parallel to each other, and no other components are arranged between the pair of unit wall surfaces in the width direction. part of the component. Generally, if the flow rate of the fluid is the same, the flow velocity of the fluid is faster when the cross-sectional area of the flow path is smaller. However, when the width of the flow path is too narrow, the pressure loss due to the wall surface forming the flow path increases, and the flow rate of the fluid decreases. In the present invention, the pressure loss caused by the pair of cell wall surfaces can be reduced by reducing the height of the wall surfaces. Therefore, even if the distance between the pair of cell wall surfaces in the width direction is reduced, the resulting increase in pressure loss can be suppressed. Therefore, the area of the cross section perpendicular to the height direction of the thread running space can be reduced, and the wind speed can be further increased.

第5發明的冷卻裝置的特徵在於，在上述第1~第4任一項發明中，上述冷卻單元具有1個以上的導絲器，該1個以上的導絲器配置在上述絲線行進空間中，且構成為限制上述絲線向上述高度方向的另一側移動。A cooling device according to a fifth invention, in any one of the above-mentioned first to fourth inventions, is characterized in that the cooling unit has one or more yarn guides, and the one or more yarn guides are arranged in the yarn running space. , and is configured to restrict the movement of the wire to the other side in the height direction.

在本發明中，能夠通過導絲器來限制絲線向高度方向上的另一側移動，因此能夠抑制絲線進入管道內空間。In the present invention, the movement of the wire to the other side in the height direction can be restricted by the wire guide, so that the wire can be prevented from entering the inner space of the duct.

第6發明的冷卻裝置的特徵在於，在上述第5發明中，在上述高度方向上，上述1個以上的導絲器的上述一側的端部配置在比上述一對單元壁面的中央靠上述一側的位置。A cooling device according to a sixth invention is characterized in that, in the fifth invention, in the height direction, the end portion of the one side of the one or more yarn guides is disposed closer to the center of the pair of unit wall surfaces than the center of the pair of unit walls. position on one side.

在本發明中，導絲器在高度方向上配置在遠離管道的位置，因此能夠使絲線在高度方向上整體遠離管道。因而，能夠可靠地防止絲線進入管道內空間。In the present invention, the yarn guide is arranged at a position away from the pipe in the height direction, so that the entirety of the wire can be kept away from the pipe in the height direction. Therefore, it is possible to reliably prevent the wire from entering the duct inner space.

第7發明的冷卻裝置的特徵在於，在上述第1~第6任一項發明中，上述冷卻單元具有：第1接觸部，設置於上述一對單元壁面中的一方的一部分，用於供上述絲線接觸；以及第2接觸部，設置於上述一對單元壁面中的另一方的一部分，且在上述長度方向上配置在與上述第1接觸部不同的位置，用於供上述絲線接觸。A cooling device according to a seventh invention is characterized in that, in any one of the above-mentioned first to sixth inventions, the cooling unit has: a first contact portion provided on a part of one of the pair of unit wall surfaces for supplying the above-mentioned a wire contact; and a second contact portion provided on a part of the other of the pair of cell wall surfaces and arranged at a position different from the first contact portion in the longitudinal direction for the wire to contact.

在本發明中，能夠使絲線一邊與第1接觸部或者第2接觸部接觸一邊行進。由此，絲線在寬度方向上的移動被限制。此外，通過使絲線與由冷卻風冷卻後的第1接觸部或者第2接觸部接觸，由此能夠更有效地冷卻絲線。In the present invention, the wire can run while being in contact with the first contact portion or the second contact portion. Thereby, movement of the wire in the width direction is restricted. In addition, the wire can be cooled more effectively by bringing the wire into contact with the first contact portion or the second contact portion cooled by the cooling air.

第8發明的冷卻裝置的特徵在於，在上述第1~第7任一項發明中，具備以使上述管道內空間產生負壓的方式構成的負壓生成裝置。A cooling device according to an eighth invention, in any one of the first to seventh inventions, includes a negative pressure generating device configured to generate a negative pressure in the duct inner space.

一般情況下，絲線被施加有用於使絲線順暢地行進的油劑。因此，例如，在從管道內空間朝向絲線行進空間供給冷卻風的構成中，油劑有可能向外部空間飛散。在本發明中，能夠將冷卻風吸入到管道內空間，因此能夠避免油劑飛散的問題。Typically, the wire is applied with an oil for smooth running of the wire. Therefore, for example, in a configuration in which cooling air is supplied from the duct inner space toward the thread running space, the oil agent may scatter to the outer space. In the present invention, the cooling air can be sucked into the duct inner space, so the problem of oil agent scattering can be avoided.

第9發明的冷卻裝置的特徵在於，在上述第8發明中，上述負壓生成裝置具有：葉輪，構成為能夠旋轉；馬達，構成為旋轉驅動上述葉輪；以及轉速變更部，構成為能夠變更上述馬達的旋轉軸的轉速。A cooling device according to a ninth invention is characterized in that in the above eighth invention, the negative pressure generating device includes: an impeller configured to be rotatable; a motor configured to rotationally drive the impeller; The rotational speed of the motor's rotating shaft.

在本發明的冷卻裝置中，即使由負壓生成裝置生成的負壓比以往小，也能夠得到較大的風速。此處，在負壓生成裝置構成為能夠根據馬達的旋轉軸的轉速來變更負壓的情況下，一般已知馬達的消耗電力與相應轉速的三次方成比例。因而，通過使相應轉速比以往減少，由此能夠在得到所希望的風速的同時，大幅度削減負壓生成裝置的消耗電力。In the cooling device of the present invention, even if the negative pressure generated by the negative pressure generating device is smaller than before, a higher wind speed can be obtained. Here, when the negative pressure generating device is configured to be able to change the negative pressure according to the rotational speed of the motor's rotating shaft, it is generally known that the power consumption of the motor is proportional to the cube of the corresponding rotational speed. Therefore, by reducing the corresponding number of rotations compared to conventional ones, it is possible to significantly reduce the power consumption of the negative pressure generating device while obtaining a desired wind speed.

第10發明的絲線加工機的特徵在於，具備：上述第1~第9任一項發明的冷卻裝置；絲線變形施加裝置，構成為對上述絲線施加變形；以及絲線輸送裝置，構成為向上述冷卻裝置以及上述絲線變形施加裝置輸送上述絲線，用於使上述絲線行進，該絲線加工機構成為一邊使上述絲線行進一邊進行加工。A wire processing machine according to a tenth invention is characterized by comprising: the cooling device according to any one of the above-mentioned first to ninth inventions; a wire deformation imparting device configured to apply deformation to the wire; The device and the above-mentioned wire deformation applying device convey the above-mentioned wire for advancing the above-mentioned wire, and the wire processing mechanism is configured to process the above-mentioned wire while advancing.

在本發明中，能夠在有效地冷卻絲線的同時，實現冷卻裝置的小型化以及/或者消耗電力的降低。因而，能夠在確保由絲線加工機加工的絲線的良好品質的同時，實現絲線加工機整體的小型化以及/或者消耗電力的降低。In the present invention, the cooling device can be downsized and/or power consumption can be reduced while effectively cooling the wire. Therefore, it is possible to reduce the size of the entire wire processing machine and/or reduce power consumption while ensuring high quality of the wire processed by the wire processing machine.

接著，對本發明的實施方式進行說明。將圖1的與紙面垂直的方向設為機體長度方向。為了便於說明，將圖1的紙面近前側以及圖2的紙面左側設為機體長度方向上的一側，將圖1的紙面裡側以及圖2的紙面右側設為機體長度方向上的另一側。將圖1的紙面左右方向設為機體寬度方向。將與機體長度方向以及機體寬度方向的雙方正交的方向設為重力所作用的上下方向(鉛垂方向)。將多根絲線Y(後述)並排行進的方向設為絲線行進方向。Next, embodiments of the present invention will be described. Let the direction perpendicular to the paper surface in Fig. 1 be the body length direction. For ease of description, the front side of the paper in FIG. 1 and the left side of the paper in FIG. 2 are set as one side in the longitudinal direction of the body, and the back side of the paper in FIG. 1 and the right side of the paper in FIG. 2 are set as the other side in the longitudinal direction of the body . Let the left-right direction of the paper surface of FIG. 1 be the body width direction. Let the direction perpendicular to both the body length direction and the body width direction be the up-down direction (vertical direction) on which gravity acts. The direction in which a plurality of threads Y (described later) runs side by side is referred to as the thread traveling direction.

(假撚加工機的整體構成) 首先，參考圖1~圖3對本實施方式的假撚加工機1(本發明的絲線加工機)的整體構成進行說明。圖1是假撚加工機1的側視圖。圖2是沿著絲線Y的路徑(絲線通道)將假撚加工機1展開的示意圖。圖3是圖1的III箭頭圖。 (Overall structure of false twist processing machine) First, the overall configuration of a false twist processing machine 1 (yarn processing machine of the present invention) according to the present embodiment will be described with reference to FIGS. 1 to 3 . FIG. 1 is a side view of a false twist processing machine 1 . FIG. 2 is a schematic view of the false twist processing machine 1 unfolded along the path of the yarn Y (yarn path). Fig. 3 is a diagram of arrow III of Fig. 1 .

假撚加工機1構成為能夠對由合成纖維(例如聚酯)形成的絲線Y進行假撚加工。絲線Y例如是由多根長絲形成的複絲絲線。或者，絲線Y也可以由一根長絲構成。假撚加工機1具備供絲部2、加工部3以及卷取部4。供絲部2構成為能夠供給絲線Y。加工部3構成為從供絲部2拉出絲線Y而進行假撚加工。卷取部4構成為將由加工部3加工後的絲線Y卷取於卷取筒管Bw。供絲部2、加工部3以及卷取部4所具有的各構成要素在機體長度方向上排列有多個(參考圖2)。機體長度方向是與由從供絲部2通過加工部3到達卷取部4的絲線通道形成的絲線Y的行進面(圖1的紙面)正交的方向。The false-twisting machine 1 is configured to be able to perform false-twisting processing on a yarn Y made of synthetic fibers (for example, polyester). The thread Y is, for example, a multifilament thread formed of a plurality of filaments. Alternatively, the thread Y can also consist of a single filament. The false twist processing machine 1 includes a yarn supply unit 2 , a processing unit 3 , and a take-up unit 4 . The yarn supply unit 2 is configured to be capable of supplying the yarn Y. The processing unit 3 is configured to pull out the yarn Y from the yarn supply unit 2 and perform false twist processing. The winding unit 4 is configured to wind the yarn Y processed by the processing unit 3 on the winding bobbin Bw. A plurality of constituent elements of the yarn supply unit 2, the processing unit 3, and the take-up unit 4 are arranged in a longitudinal direction of the body (refer to FIG. 2 ). The machine body longitudinal direction is a direction perpendicular to the running surface (the paper surface of FIG. 1 ) of the yarn Y formed by the yarn passage from the yarn supply unit 2 through the processing unit 3 to the take-up unit 4 .

供絲部2具有保持多個供絲卷裝Ps的筒子架7，向加工部3供給多根絲線Y。加工部3構成為，從供絲部2拉出多根絲線Y並進行加工。加工部3構成為，從絲線行進方向的上游側起依次配置有例如第1供絲輥11(本發明的絲線輸送裝置)、止撚導絲器12、第1加熱裝置13、冷卻裝置14、假撚裝置15(本發明的絲線變形施加裝置)、第2供絲輥16、絡交裝置17、第3供絲輥18、第2加熱裝置19、第4供絲輥20。卷取部4具有多個卷取裝置21。各卷取裝置21將由加工部3假撚加工後的絲線Y卷取於卷取筒管Bw而形成卷取卷裝Pw。The yarn supply unit 2 has a creel 7 holding a plurality of yarn supply packages Ps, and supplies a plurality of yarns Y to the processing unit 3 . The processing unit 3 is configured to pull out a plurality of yarns Y from the yarn supply unit 2 and process them. The processing section 3 is configured such that, for example, a first yarn supply roller 11 (yarn delivery device of the present invention), a twist-stop yarn guide 12, a first heating device 13, a cooling device 14, False twist device 15 (yarn deformation applying device of the present invention), second yarn supply roll 16, interlacing device 17, third yarn supply roll 18, second heating device 19, fourth yarn supply roll 20. The winding unit 4 has a plurality of winding devices 21 . Each winding device 21 winds the yarn Y that has been false-twisted by the processing section 3 on a winding bobbin Bw to form a winding package Pw.

假撚加工機1具有在機體寬度方向上隔開間隔地配置的主機體8以及卷取台9。主機體8以及卷取台9被設置成在機體長度方向上以大致相同的長度延伸。主機體8以及卷取台9被配置成在機體寬度方向上相互對置。在主機體8與卷取台9之間形成有用於供作業者進行掛絲等作業的作業空間Sw(參考圖1)。假撚加工機1具有被稱作跨度的單位單元，該單位單元包括1組的主機體8以及卷取台9。在一個跨度中，各裝置被配置成能夠對以在機體長度方向上排列的狀態行進的多根絲線Y同時實施假撚加工。假撚加工機1為，該跨度以主機體8的機體寬度方向的中心線C為對稱軸而在紙面左右對稱地配置(主機體8在左右的跨度中共通)。此外，在機體長度方向上排列有多個跨度。The false twist processing machine 1 has a main body 8 and a winding table 9 arranged at intervals in the machine width direction. The main body 8 and the take-up table 9 are provided so as to extend approximately the same length in the body length direction. The main body 8 and the take-up table 9 are arranged to face each other in the body width direction. A working space Sw (refer to FIG. 1 ) for an operator to perform operations such as threading is formed between the main body 8 and the winding table 9 . The false twisting machine 1 has a unit unit called a span, and this unit unit includes a main body 8 and a winding table 9 in one set. In one span, each device is arranged so that false twisting can be performed simultaneously on a plurality of yarns Y running in a state aligned in the machine length direction. In the false twisting machine 1 , the span is arranged bilaterally symmetrically on the paper with the center line C in the machine width direction of the main body 8 as the axis of symmetry (the main body 8 shares the same span on the left and right). In addition, a plurality of spans are arranged in the length direction of the body.

(加工部的構成) 參考圖1以及圖2對加工部3的構成進行說明。第1供絲輥11構成為，從安裝於供絲部2的供絲卷裝Ps退繞絲線Y而向第1加熱裝置13輸送。例如，如圖2所示，第1供絲輥11構成為，將1根絲線Y向第1加熱裝置13輸送。或者，第1供絲輥11也可以構成為，能夠將相鄰的多根絲線Y分別向絲線行進方向的下游側輸送。止撚導絲器12構成為，使由假撚裝置15對絲線Y施加的撚轉不向比止撚導絲器12靠絲線行進方向上游側傳播。 (Structure of processing department) The configuration of the processing unit 3 will be described with reference to FIGS. 1 and 2 . The first yarn supply roll 11 is configured to unwind the yarn Y from the yarn supply package Ps attached to the yarn supply unit 2 and feed it to the first heating device 13 . For example, as shown in FIG. 2 , the first yarn supply roller 11 is configured to feed one yarn Y to the first heating device 13 . Alternatively, the first yarn supply roller 11 may be configured to be able to feed each of the plurality of adjacent yarns Y to the downstream side in the yarn traveling direction. The anti-twist guide 12 is configured so that the twist applied to the yarn Y by the false twist device 15 does not propagate upstream of the anti-twist guide 12 in the yarn traveling direction.

第1加熱裝置13構成為，對從第1供絲輥11送來的絲線Y進行加熱。例如，如圖2所示，第1加熱裝置13構成為能夠對2根絲線Y進行加熱，但並不限定於此。第1加熱裝置13例如也可以構成為能夠對1根絲線Y進行加熱。或者，第1加熱裝置13也可以構成為能夠對3根以上的絲線Y進行加熱。The first heating device 13 is configured to heat the yarn Y fed from the first yarn supply roll 11 . For example, as shown in FIG. 2 , the first heating device 13 is configured to be capable of heating two yarns Y, but the present invention is not limited thereto. The first heating device 13 may be configured to be capable of heating one yarn Y, for example. Alternatively, the first heating device 13 may be configured to be capable of heating three or more threads Y.

冷卻裝置14是通過冷卻風對多根絲線Y進行冷卻的非接觸式的裝置。如圖3所示，冷卻裝置14具有多個冷卻單元31、安裝有多個冷卻單元31的進氣管道32(本發明的管道)、以及負壓生成裝置33。冷卻裝置14利用負壓生成裝置33使進氣管道32的內部空間(進氣空間Ss。本發明的管道內空間)產生負壓，由此向分別形成於多個冷卻單元31的多個絲線行進空間S供給冷卻風。另外，所謂負壓是指低於大氣壓(更具體而言，在本實施方式中，是指冷卻裝置14外側的空間中的氣壓)的壓力。The cooling device 14 is a non-contact device that cools the plurality of wires Y with cooling air. As shown in FIG. 3 , the cooling device 14 has a plurality of cooling units 31 , an intake duct 32 (a duct of the present invention) in which the plurality of cooling units 31 are installed, and a negative pressure generating device 33 . The cooling device 14 generates a negative pressure in the inner space of the intake duct 32 (intake space Ss; duct inner space in the present invention) by the negative pressure generating device 33, thereby advancing toward the plurality of filaments respectively formed in the plurality of cooling units 31. The space S supplies cooling air. Note that negative pressure refers to a pressure lower than atmospheric pressure (more specifically, in this embodiment, the air pressure in the space outside cooling device 14 ).

如圖3所示，多個冷卻單元31在機體長度方向上排列配置。多個冷卻單元31安裝於進氣管道32。多個冷卻單元31分別沿著與機體長度方向交叉的方向(大致正交的方向)延伸。在本實施方式中，各冷卻單元31呈大致直線狀延伸。但是，並不限定於此(例如，各冷卻單元31也可以彎曲等)。各冷卻單元31具有供1根絲線Y行進的絲線行進空間S。在絲線行進空間S內行進的絲線Y被冷卻風冷卻。多個冷卻單元31包括在機體長度方向上以相鄰的方式配置的兩個冷卻單元31A、31B。冷卻單元31A與冷卻單元31B在機體長度方向上的間隔例如隨著朝向絲線行進方向的下游側而變大。兩個冷卻單元31A、31B以規定的直線L為對稱軸而相互構成為線對稱。As shown in FIG. 3 , a plurality of cooling units 31 are arranged in a line in the longitudinal direction of the machine body. A plurality of cooling units 31 are installed on the intake duct 32 . The plurality of cooling units 31 each extend in a direction intersecting with the machine body longitudinal direction (a direction substantially perpendicular to it). In this embodiment, each cooling unit 31 extends substantially linearly. However, it is not limited thereto (for example, each cooling unit 31 may be bent, etc.). Each cooling unit 31 has a wire running space S in which one wire Y runs. The wire Y running in the wire running space S is cooled by the cooling air. The plurality of cooling units 31 includes two cooling units 31A, 31B arranged adjacent to each other in the body length direction. The distance between the cooling unit 31A and the cooling unit 31B in the longitudinal direction of the body increases, for example, toward the downstream side in the yarn traveling direction. The two cooling units 31A and 31B are configured to be line-symmetrical to each other with a predetermined straight line L as an axis of symmetry.

進氣管道32是構成為向多個冷卻單元31供給冷卻風的管道。如圖3所示，進氣管道32沿著機體長度方向延伸。在進氣管道32內形成有沿著機體長度方向延伸的進氣空間Ss。進氣空間Ss與多個絲線行進空間S連接。在進氣管道32中安裝有多個冷卻單元31。更具體而言，在進氣管道32中形成有沿著機體長度方向延伸的管道壁部34。多個冷卻單元31例如螺紋固定於管道壁部34。在管道壁部34上形成有多個進氣狹縫38(參考圖4的(b)。本發明的狹縫。詳細情況將後述)。The intake duct 32 is a duct configured to supply cooling air to the plurality of cooling units 31 . As shown in FIG. 3 , the air intake duct 32 extends along the length of the machine body. An intake space Ss extending along the body length direction is formed in the intake duct 32 . The air intake space Ss is connected to a plurality of thread running spaces S. As shown in FIG. A plurality of cooling units 31 are installed in the intake duct 32 . More specifically, a duct wall portion 34 extending along the body length direction is formed in the intake duct 32 . The plurality of cooling units 31 are fixed to the duct wall 34 by screws, for example. A plurality of intake slits 38 are formed on the duct wall portion 34 (refer to FIG. 4( b ). Slits of the present invention. Details will be described later).

負壓生成裝置33例如是公知的鼓風機。負壓生成裝置33例如配置在進氣管道32的機體長度方向上的一側或者另一側(作為例子，在圖3中為一側)的端部。負壓生成裝置33例如具有能夠旋轉的葉輪35、旋轉驅動葉輪35的馬達36、以及能夠變更馬達36的旋轉軸(未圖示)的轉速的變頻裝置37(本發明的轉速變更部)。馬達36例如是公知的交流馬達。負壓生成裝置33利用馬達36來旋轉驅動葉輪35，由此使進氣空間Ss產生負壓。關於冷卻裝置14的更詳細情況將後述。The negative pressure generating device 33 is, for example, a known blower. The negative pressure generator 33 is arranged, for example, at one end or the other (one side in FIG. 3 as an example) end of the intake duct 32 in the body length direction. The negative pressure generating device 33 includes, for example, a rotatable impeller 35 , a motor 36 that rotatably drives the impeller 35 , and an inverter 37 (rotational speed changing unit of the present invention) capable of changing the rotational speed of a rotating shaft (not shown) of the motor 36 . The motor 36 is, for example, a known AC motor. The negative pressure generating device 33 generates negative pressure in the intake space Ss by rotationally driving the impeller 35 with the motor 36 . More details about the cooling device 14 will be described later.

假撚裝置15配置在冷卻裝置14的絲線行進方向下游側，構成為對絲線Y進行加撚。假撚裝置15例如是公知的摩擦盤式的假撚裝置或者公知的帶式的假撚裝置，但並不限定於此。第2供絲輥16構成為，將由假撚裝置15處理後的絲線Y向絡交裝置17輸送。第2供絲輥16輸送絲線Y的速度比第1供絲輥11輸送絲線Y的速度快。由此，絲線Y在第1供絲輥11與第2供絲輥16之間被拉伸假撚。The false twisting device 15 is arranged downstream of the cooling device 14 in the yarn traveling direction, and is configured to twist the yarn Y. The false twist device 15 is, for example, a known friction disc type false twist device or a known belt type false twist device, but is not limited thereto. The second yarn supply roll 16 is configured to feed the yarn Y processed by the false twisting device 15 to the entangling device 17 . The speed at which the yarn Y is fed by the second yarn supply roller 16 is faster than the speed at which the yarn Y is fed by the first yarn supply roller 11 . Thus, the yarn Y is stretched and false-twisted between the first yarn supply roll 11 and the second yarn supply roll 16 .

絡交裝置17構成為對絲線Y施加絡交。絡交裝置17例如具有通過氣流對絲線Y施加絡交的公知的交織噴嘴。The entanglement device 17 is configured to apply entanglement to the yarn Y. The interlacing device 17 has, for example, a known interlacing nozzle for imparting interlacing to the yarn Y by airflow.

第3供絲輥18構成為，將在比絡交裝置17靠絲線行進方向的下游側行進的絲線Y向第2加熱裝置19輸送。例如，如圖2所示，第3供絲輥18構成為將1根絲線Y向第2加熱裝置19輸送。或者，第3供絲輥18也可以構成為，能夠將相鄰的多根絲線Y分別向絲線行進方向的下游側輸送。另外，第3供絲輥18輸送絲線Y的速度比第2供絲輥16輸送絲線Y的速度慢。因此，絲線Y在第2供絲輥16與第3供絲輥18之間鬆弛。第2加熱裝置19構成為，對從第3供絲輥18送來的絲線Y進行加熱。第2加熱裝置19沿著鉛垂方向延伸，且在一個跨度中各設置有一個。第4供絲輥20構成為，將由第2加熱裝置19加熱後的絲線Y向卷取裝置21輸送。例如，如圖2所示，第4供絲輥20構成為能夠將1根絲線Y向卷取裝置21輸送。或者，第4供絲輥20也可以構成為，能夠將相鄰的多根絲線Y分別向絲線行進方向的下游側輸送。第4供絲輥20輸送絲線Y的速度比第3供絲輥18輸送絲線Y的速度慢。因此，絲線Y在第3供絲輥18與第4供絲輥20之間鬆弛。The third yarn supply roller 18 is configured to feed the yarn Y traveling downstream of the entangling device 17 in the yarn traveling direction to the second heating device 19 . For example, as shown in FIG. 2 , the third yarn supply roller 18 is configured to feed one yarn Y to the second heating device 19 . Alternatively, the third yarn supply roller 18 may be configured to be able to feed each of the plurality of adjacent yarns Y to the downstream side in the yarn traveling direction. In addition, the speed at which the yarn Y is fed by the third yarn supply roller 18 is slower than the speed at which the yarn Y is fed by the second yarn supply roller 16 . Therefore, the yarn Y is loosened between the second yarn supply roller 16 and the third yarn supply roller 18 . The second heating device 19 is configured to heat the yarn Y sent from the third yarn supply roll 18 . The second heating devices 19 extend in the vertical direction, and are provided one at a time in each span. The fourth yarn supply roll 20 is configured to feed the yarn Y heated by the second heating device 19 to the winding device 21 . For example, as shown in FIG. 2 , the fourth yarn supply roller 20 is configured to be able to feed one yarn Y to the winding device 21 . Alternatively, the fourth yarn supply roller 20 may be configured to be able to feed each of the plurality of adjacent yarns Y to the downstream side in the yarn traveling direction. The speed at which the yarn Y is fed by the fourth yarn supply roller 20 is slower than the speed at which the yarn Y is fed by the third yarn supply roller 18 . Therefore, the yarn Y is loosened between the third yarn supply roller 18 and the fourth yarn supply roller 20 .

在如以上那樣構成的加工部3中，在第1供絲輥11與第2供絲輥16之間被拉伸後的絲線Y由假撚裝置15加撚。由假撚裝置15形成的撚轉傳播至止撚導絲器12為止，不向比止撚導絲器12靠絲線行進方向上游側傳播。被拉伸且被加撚的絲線Y在由第1加熱裝置13加熱而熱定型之後，由冷卻裝置14冷卻。在比假撚裝置15靠絲線行進方向下游側，絲線Y被退撚，但通過上述熱定型來維持絲線Y被假撚為波狀的狀態(即，維持絲線Y的捲曲)。In the processing section 3 configured as described above, the yarn Y stretched between the first yarn supply roll 11 and the second yarn supply roll 16 is twisted by the false twisting device 15 . The twist formed by the false twist device 15 propagates up to the anti-twist guide 12, and does not propagate upstream of the anti-twist guide 12 in the yarn traveling direction. The stretched and twisted yarn Y is heated and heat-set by the first heating device 13 , and then cooled by the cooling device 14 . The yarn Y is untwisted on the downstream side of the yarn traveling direction from the false twisting device 15, but the yarn Y is maintained in a wavy state (that is, the crimp of the yarn Y is maintained) by the above-mentioned heat setting.

被實施了假撚的絲線Y一邊在第2供絲輥16與第3供絲輥18之間鬆弛，一邊由絡交裝置17施加絡交，之後被向絲線行進方向下游側引導。進而，絲線Y一邊在第3供絲輥18與第4供絲輥20之間鬆弛，一邊由第2加熱裝置19進行熱處理。最後，從第4供絲輥20送出的絲線Y由卷取裝置21卷取。The false twisted yarn Y is entangled by the entanglement device 17 while being loosened between the second yarn supply roll 16 and the third yarn supply roll 18, and then guided downstream in the yarn traveling direction. Furthermore, the yarn Y is heat-treated by the second heating device 19 while being relaxed between the third yarn supply roll 18 and the fourth yarn supply roll 20 . Finally, the yarn Y delivered from the fourth yarn supply roll 20 is taken up by the take-up device 21 .

(卷取部的構成) 參考圖2對卷取部4的構成進行說明。卷取部4具有多個卷取裝置21。各卷取裝置21構成為能夠在一個卷取筒管Bw上卷取絲線Y。卷取裝置21具有支點導絲器41、橫動裝置42以及搖架43。支點導絲器41是成為絲線Y往復移動時的支點的導絲器。橫動裝置42構成為，能夠通過橫動導絲器45使絲線Y往復移動。搖架43構成為將卷取筒管Bw支承為旋轉自如。在搖架43附近配置有接觸輥46。接觸輥46與卷取卷裝Pw的表面接觸並施加接觸壓力。在如以上那樣構成的卷取部4中，從上述第4供絲輥20送出的絲線Y由各卷取裝置21卷取於卷取筒管Bw，並形成卷取卷裝Pw。 (Structure of winding section) The configuration of the winding unit 4 will be described with reference to FIG. 2 . The winding unit 4 has a plurality of winding devices 21 . Each winding device 21 is configured to be capable of winding the yarn Y around one winding bobbin Bw. The winding device 21 has a fulcrum guide 41 , a traverse device 42 and a cradle 43 . The fulcrum guide 41 is a yarn guide that serves as a fulcrum when the yarn Y reciprocates. The traverse device 42 is configured to be able to reciprocate the yarn Y by the traverse guide 45 . The cradle 43 is configured to rotatably support the winding bobbin Bw. Touch rollers 46 are arranged near the cradle 43 . The touch roller 46 is in contact with the surface of the wound package Pw and applies a contact pressure. In the winding section 4 configured as above, the yarn Y sent out from the fourth yarn supply roller 20 is wound around the winding bobbin Bw by each winding device 21 to form a winding package Pw.

此處，近年來，例如以對比以往粗的絲線Y進行冷卻等為目的，而要求進一步提高絲線Y的冷卻效率。此處，「提高冷卻效率」可以具有多種含義。例如，「能夠在短時間內急速地冷卻絲線Y」、「以較小的負壓得到較大的風速」以及「削減用於得到所希望的風速的負壓生成裝置33的消耗電力」均相當於提高冷卻效率。其中，為了「能夠在短時間內急速地冷卻絲線Y」，期望能夠提高冷卻風的速度(風速)。但是，本申請發明人發現了如下問題：即使簡單地增大葉輪35的轉速(即，負壓生成裝置33的輸出)而增大進氣管道32內的負壓，風速也難以變快。因此，在本實施方式中，為了提高絲線Y的冷卻效率，冷卻裝置14進一步具有以下的構成。Here, in recent years, further improvement in the cooling efficiency of the wire Y has been demanded, for example, for the purpose of cooling the wire Y which is thicker than conventional ones. Here, "improving cooling efficiency" can have various meanings. For example, "the yarn Y can be cooled rapidly in a short time", "a high wind speed can be obtained with a small negative pressure", and "the power consumption of the negative pressure generating device 33 for obtaining a desired wind speed can be reduced" are all equivalent to improve cooling efficiency. Among them, in order to "quickly cool the yarn Y in a short time", it is desirable to increase the speed (wind speed) of the cooling air. However, the inventors of the present application found a problem that even if the negative pressure in the intake duct 32 is increased simply by increasing the rotational speed of the impeller 35 (that is, the output of the negative pressure generator 33 ), the wind speed is difficult to increase. Therefore, in the present embodiment, in order to improve the cooling efficiency of the yarn Y, the cooling device 14 further has the following configuration.

(冷卻裝置的詳細構成) 參考圖4的(a)~圖7對冷卻裝置14的更詳細情況進行說明。圖4的(a)是圖3的一部分的放大圖。圖4的(b)是在圖3的一部分的放大圖中用虛線表示冷卻單元31A的圖。圖5是圖4的V-V線剖面圖。圖6是為了使絲線行進空間S容易觀察而將冷卻單元31A進一步示意化了的圖。圖7是圖4的(b)的一部分的放大圖。圖6以及圖7的紙面上下方向與後述的單元長度方向平行。 (Detailed configuration of the cooling device) More details of the cooling device 14 will be described with reference to FIG. 4( a ) to FIG. 7 . (a) of FIG. 4 is an enlarged view of a part of FIG. 3 . (b) of FIG. 4 is a diagram showing the cooling unit 31A by dotted lines in an enlarged view of a part of FIG. 3 . Fig. 5 is a cross-sectional view taken along line V-V of Fig. 4 . FIG. 6 is a further schematic diagram of the cooling unit 31A in order to make the yarn traveling space S easier to observe. FIG. 7 is an enlarged view of a part of (b) of FIG. 4 . 6 and 7 are parallel to the unit length direction described later.

如上所述，冷卻單元31A與冷卻單元31B相互構成為線對稱(參考圖3)。因而，以下，關於冷卻單元31，僅對冷卻單元31A進行詳細說明，省略冷卻單元31B的說明。As described above, the cooling unit 31A and the cooling unit 31B are configured in line symmetry with each other (see FIG. 3 ). Therefore, below, regarding the cooling unit 31 , only the cooling unit 31A will be described in detail, and the description of the cooling unit 31B will be omitted.

將圖4的(a)、(b)的與紙面垂直的方向設為高度方向。高度方向與圖5的紙面上下方向平行。高度方向是與機體長度方向正交的方向。此外，在本實施方式中，高度方向至少具有上下方向的分量。在本實施方式中，高度方向的一側能夠換言之為大致下側。此外，高度方向的另一側能夠換言之為大致上側。但是，需要注意，高度方向與上下方向之間的關係能夠根據冷卻裝置14所配置的朝向而改變。Let the direction perpendicular to the paper surface of (a) and (b) of FIG. 4 be a height direction. The height direction is parallel to the up-down direction on the paper of FIG. 5 . The height direction is a direction orthogonal to the body length direction. In addition, in the present embodiment, the height direction has at least a vertical direction component. In this embodiment, one side in the height direction can be said to be substantially lower. In addition, the other side in the height direction can be said to be substantially the upper side. However, it should be noted that the relationship between the height direction and the up-down direction can be changed depending on the orientation in which the cooling device 14 is arranged.

此外，為了便於說明，將與機體長度方向以及高度方向的雙方正交的方向設為正交方向(參考圖4的(a))。冷卻單元31A以及冷卻單元31B至少沿著正交方向延伸。在本實施方式中，冷卻單元31A以及冷卻單元31B分別沿著相對於正交方向稍微傾斜的方向延伸。此外，將冷卻單元31A所延伸的方向稱作單元長度方向(本發明的長度方向)。為了便於說明，將與單元長度方向以及高度方向的雙方正交的方向稱作寬度方向(參考圖5)。圖5的紙面左側是寬度方向的一側。圖5的紙面右側是寬度方向的另一側。In addition, for convenience of description, let the direction orthogonal to both the body length direction and the height direction be an orthogonal direction (refer FIG. 4(a)). The cooling unit 31A and the cooling unit 31B extend at least along the orthogonal direction. In this embodiment, the cooling unit 31A and the cooling unit 31B each extend in a direction slightly inclined with respect to the orthogonal direction. In addition, the direction in which the cooling unit 31A extends is called a unit length direction (the length direction of this invention). For convenience of description, the direction perpendicular to both the cell length direction and the height direction is referred to as a width direction (see FIG. 5 ). The left side of the paper in FIG. 5 is one side in the width direction. The right side of the paper in FIG. 5 is the other side in the width direction.

在本實施方式中，單元長度方向是具有正交方向的分量的規定的一個方向(參考圖4的(a)、(b)))。換言之，在本實施方式中，與冷卻單元31在正交方向上的位置無關，單元長度方向均相同。另外，在從高度方向觀察時冷卻單元31彎曲等的情況下，單元長度方向根據冷卻單元31在正交方向上的位置而變化。In the present embodiment, the cell length direction is a predetermined one direction having a component in an orthogonal direction (see (a) and (b) of FIG. 4 )). In other words, in this embodiment, regardless of the position of the cooling unit 31 in the orthogonal direction, the unit length direction is the same. In addition, in the case where the cooling unit 31 is bent or the like when viewed from the height direction, the unit length direction changes according to the position of the cooling unit 31 in the orthogonal direction.

(冷卻單元的構成) 如圖4的(a)~圖7所示，冷卻單元31A具有一對單元壁板51(本發明的一對單元壁部)。一對單元壁板51配置在進氣管道32的高度方向的一側(更詳細來說，在管道壁部34的高度方向的一側)。一對單元壁板51(單元壁板51a、51b)分別是用於形成絲線行進空間S的長條的部件。在寬度方向上，在設置於一對單元壁板51的一對單元壁面55(後述)之間形成有絲線行進空間S。單元壁板51a、51b沿著單元長度方向較長地延伸。單元壁板51a配置在絲線行進空間S的寬度方向的一側。單元壁板51b配置在絲線行進空間S的寬度方向的另一側。 (Composition of cooling unit) As shown in FIG. 4( a ) to FIG. 7 , the cooling unit 31A has a pair of unit wall plates 51 (a pair of unit wall portions in the present invention). The pair of unit wall plates 51 are arranged on one side in the height direction of the intake duct 32 (more specifically, on one side in the height direction of the duct wall portion 34 ). The pair of unit wall plates 51 (unit wall plates 51a, 51b) are elongated members for forming the thread traveling space S, respectively. In the width direction, a thread running space S is formed between a pair of unit wall surfaces 55 (described later) provided on a pair of unit wall plates 51 . The unit wall plates 51a, 51b extend long along the unit length direction. The unit wall plate 51a is arranged on one side in the width direction of the thread running space S. As shown in FIG. The unit wall plate 51b is arranged on the other side in the width direction of the wire traveling space S. As shown in FIG.

單元壁板51a例如是對金屬製的平板部件進行鈑金加工而形成的、具有大致C字狀剖面的部件(參考圖5)。單元壁板51a例如也可以固定於管道壁部34。或者，單元壁板51a也可以構成為，相對於單元壁板51b至少能夠在寬度方向上移動。在單元壁板51a能夠移動的情況下，例如在進行冷卻單元31A的維護時，後述的導絲器58等的清掃作業變得容易。單元壁板51a具有基端部52a、中間部53a以及前端部54a(參考圖5)。The unit wall plate 51 a is, for example, a member having a substantially C-shaped cross section formed by sheet metal processing of a metal flat member (see FIG. 5 ). The unit wall plate 51a may be fixed to the duct wall part 34, for example. Alternatively, the unit wall plate 51a may be configured to be movable at least in the width direction with respect to the unit wall plate 51b. When the unit wall plate 51a is movable, for example, when performing maintenance of the cooling unit 31A, the cleaning work of the yarn guide 58 etc. which will be mentioned later becomes easy. The unit wall plate 51a has a base end part 52a, a middle part 53a, and a front end part 54a (refer FIG. 5).

基端部52a是配置在單元壁板51a的高度方向的另一側的端部、且沿著寬度方向延伸的部分。中間部53a是從基端部52a的寬度方向的另一側的端部向高度方向的一側延伸的部分。在中間部53a的寬度方向的另一側的端部形成有至少沿著高度方向延伸的單元壁面55a。單元壁面55a是一對單元壁面55中的一方。單元壁面55a是包括在鈑金加工時形成於中間部53a的高度方向的兩端部的彎曲面在內的面(參考圖5的粗線)。單元壁面55a是用於在冷卻單元31A中形成絲線行進空間S的面。在單元壁面55a上例如設置有在單元長度方向上相互分離地配置的多個接觸體56a(本發明的第1接觸部。參考圖5以及圖6)。接觸體56a構成為，使行進中的絲線Y積極地與接觸體56a接觸。由此，能夠防止絲線Y與單元壁面55a中的未設置接觸體56a的部分意外地接觸。接觸體56a的厚度(即，寬度方向上的長度)例如為0.35mm。前端部54a是從中間部53a的高度方向的一側的端部向寬度方向的一側延伸的部分。The base end portion 52a is a portion arranged at the other end portion in the height direction of the unit wall plate 51a and extending in the width direction. The intermediate portion 53a is a portion extending from the end portion on the other side in the width direction of the base end portion 52a to one side in the height direction. A cell wall surface 55a extending at least in the height direction is formed at the other end portion in the width direction of the intermediate portion 53a. The unit wall surface 55 a is one of the pair of unit wall surfaces 55 . The unit wall surface 55a is a surface including curved surfaces formed at both ends in the height direction of the intermediate portion 53a during sheet metal processing (see the thick line in FIG. 5 ). The unit wall surface 55a is a surface for forming the thread traveling space S in the cooling unit 31A. On the cell wall surface 55a, for example, a plurality of contact bodies 56a (the first contact portion of the present invention; refer to FIG. 5 and FIG. 6 ) arranged separately from each other in the cell length direction are provided. The contact body 56a is configured such that the running wire Y is actively brought into contact with the contact body 56a. Thereby, it is possible to prevent the wire Y from accidentally coming into contact with a portion of the cell wall surface 55a where the contact body 56a is not provided. The thickness (that is, the length in the width direction) of the contact body 56 a is, for example, 0.35 mm. The front end portion 54a is a portion extending from one end portion in the height direction of the intermediate portion 53a to one side in the width direction.

單元壁板51b例如是對金屬製的平板部件進行鈑金加工而形成的、具有朝向與單元壁板51a相反的大致C字狀剖面的部件(參考圖5)。單元壁板51b例如通過未圖示的螺釘而固定於管道壁部34。單元壁板51b在圖5所示的剖面中具有基端部52b、中間部53b以及前端部54b。The unit wall plate 51b is formed, for example, by performing sheet metal processing on a metal plate member, and has a substantially C-shaped cross-section facing opposite to the unit wall plate 51a (see FIG. 5 ). The unit wall plate 51b is fixed to the duct wall part 34 with the screw which is not shown in figure, for example. The unit wall plate 51b has the base end part 52b, the intermediate part 53b, and the front-end part 54b in the cross section shown in FIG.

基端部52b是配置在單元壁板51b的高度方向的另一側的端部、且沿著寬度方向延伸的部分。中間部53b是從基端部52b的機體長度方向的一側的端部向高度方向的一側延伸的部分。在中間部53b的寬度方向的一側的端部形成有至少沿著高度方向延伸的單元壁面55b。單元壁面55b是一對單元壁面55中的另一方。單元壁面55b在寬度方向上隔著絲線行進空間S而配置在單元壁面55a的相反側。換言之，一對單元壁面55在寬度方向上隔著絲線行進空間S而配置在相互相反側。與單元壁面55a相同，單元壁面55b包括形成在中間部53b的高度方向的兩端部的彎曲面(參考圖5的粗線)。單元壁面55b是用於與單元壁面55a一起形成絲線行進空間S的面。在單元壁面55b上例如設置有在單元長度方向上相互分離地配置的多個接觸體56b(本發明的第2接觸部。參考圖5以及圖6)。由此，能夠防止絲線Y與單元壁面55b中的未設置接觸體56b的部分意外地接觸。接觸體56b的厚度(即，寬度方向上的長度)例如為0.35mm。接觸體56b在單元長度方向上配置於與接觸體56a不同的位置(參考圖6)。前端部54b是從中間部53b的高度方向的一側的端部向寬度方向的另一側延伸的部分。The base end portion 52b is a portion arranged at the other end portion in the height direction of the unit wall plate 51b and extending in the width direction. The intermediate portion 53b is a portion extending from the end portion on one side in the body length direction of the base end portion 52b to one side in the height direction. A cell wall surface 55b extending at least in the height direction is formed at one end portion in the width direction of the intermediate portion 53b. The unit wall surface 55 b is the other of the pair of unit wall surfaces 55 . The unit wall surface 55b is arranged on the opposite side to the unit wall surface 55a across the wire running space S in the width direction. In other words, the pair of cell wall surfaces 55 are disposed on opposite sides of each other across the thread running space S in the width direction. Like the unit wall surface 55a, the unit wall surface 55b includes curved surfaces formed at both ends in the height direction of the intermediate portion 53b (see the thick line in FIG. 5 ). The unit wall surface 55b is a surface for forming the thread traveling space S together with the unit wall surface 55a. On the cell wall surface 55b, for example, a plurality of contact bodies 56b (second contact portions in the present invention; refer to FIG. 5 and FIG. 6 ) arranged separately from each other in the cell length direction are provided. Thereby, it is possible to prevent the wire Y from accidentally coming into contact with a portion of the cell wall surface 55b where the contact body 56b is not provided. The thickness (that is, the length in the width direction) of the contact body 56 b is, for example, 0.35 mm. The contact body 56b is arrange|positioned in the position different from the contact body 56a in the cell length direction (refer FIG. 6). The front end portion 54b is a portion extending from one end portion in the height direction of the intermediate portion 53b to the other side in the width direction.

在寬度方向上，在單元壁面55a與單元壁面55b之間例如設置有多個板狀的間隔件57(在圖5中僅圖示出一個)。多個間隔件57在單元長度方向上隔開間隔地配置(省略圖示)。多個間隔件57構成為，對單元壁面55a與單元壁面55b在寬度方向上的距離(即，寬度方向上的間隔)進行規定。間隔件57的厚度(即，寬度方向上的長度)例如為1mm以下。由此，一對單元壁面55中的在寬度方向上相互面對的部分在寬度方向上的間隔G(參考圖5)為1mm以下。在本實施方式中，「一對單元壁面55中的在寬度方向上相互面對的部分」，是指一對單元壁面55中的相互大致平行的部分、且是在寬度方向上在一對單元壁面55之間未配置其他部件的部分。換言之，在單元壁面55a與單元壁面55b的雙方沿著高度方向延伸的部分，單元壁面55a與單元壁面55b在寬度方向上的間隔(間隔G)為1mm以下。另外，在本實施方式中，一對單元壁面55中的高度方向的兩端部(彎曲而相互不大致平行的部分)，不包含於「一對單元壁面55中的在寬度方向上相互面對的部分」。此外，例如，單元壁面55a與接觸體56b在寬度方向上的間隔為0.65mm，但該間隔不包含於「一對單元壁面55中的在寬度方向上相互面對的部分在寬度方向上的間隔」。對於單元壁面55b與接觸體56a在寬度方向上的間隔也相同。Between the unit wall surface 55a and the unit wall surface 55b in the width direction, for example, a plurality of plate-shaped spacers 57 (only one is shown in FIG. 5 ) are provided. The plurality of spacers 57 are arranged at intervals in the cell length direction (illustration omitted). The plurality of spacers 57 are configured to define the distance in the width direction between the cell wall surface 55 a and the cell wall surface 55 b (that is, the interval in the width direction). The thickness (that is, the length in the width direction) of the spacer 57 is, for example, 1 mm or less. Thereby, the gap G (see FIG. 5 ) in the width direction of portions facing each other in the width direction among the pair of cell wall surfaces 55 is 1 mm or less. In this embodiment, "parts of the pair of cell wall surfaces 55 facing each other in the width direction" refer to portions of the pair of cell wall surfaces 55 that are substantially parallel to each other, and are located between the pair of cell walls 55 in the width direction. No other parts are arranged between the wall surfaces 55 . In other words, in the portion where both the cell wall surface 55a and the cell wall surface 55b extend in the height direction, the gap (gap G) in the width direction between the cell wall surface 55a and the cell wall surface 55b is 1 mm or less. In addition, in the present embodiment, both end portions in the height direction of the pair of unit wall surfaces 55 (parts that are curved and not substantially parallel to each other) are not included in “the pair of unit wall surfaces 55 that face each other in the width direction. part". In addition, for example, the distance between the cell wall surface 55a and the contact body 56b in the width direction is 0.65mm, but this distance is not included in the "space in the width direction of the parts of the pair of cell walls 55 that face each other in the width direction." ". The same applies to the distance between the cell wall surface 55b and the contact body 56a in the width direction.

在寬度方向上，在單元壁面55a與單元壁面55b之間例如設置有多個導絲器58(參考圖5以及圖6)。或者，也可以僅設置一個導絲器58。1個以上的導絲器58是用於防止絲線Y被吸入進氣空間Ss內的部件。各導絲器58配置在絲線行進空間S中。作為例子，在本實施方式中設置有3個導絲器58。各導絲器58例如在高度方向上配置在比間隔件57靠一側的位置。各導絲器58構成為，使絲線Y與各導絲器58的高度方向的一側的端部接觸。由此，各導絲器58限制絲線Y向高度方向的另一側移動。因而，能夠防止絲線Y被吸入進氣空間Ss內。各導絲器58較佳在高度方向上配置在比一對單元壁面55的中央靠一側的位置。由此，能夠可靠地防止絲線Y被吸入進氣空間Ss內。In the width direction, for example, a plurality of yarn guides 58 are provided between the unit wall surface 55a and the unit wall surface 55b (see FIG. 5 and FIG. 6 ). Alternatively, only one yarn guide 58 may be provided. The one or more yarn guides 58 are for preventing the yarn Y from being sucked into the intake space Ss. Each yarn guide 58 is arranged in the yarn traveling space S. As shown in FIG. As an example, three yarn guides 58 are provided in this embodiment. Each yarn guide 58 is arranged, for example, on one side of the spacer 57 in the height direction. Each of the yarn guides 58 is configured such that the yarn Y is brought into contact with one end portion of each yarn guide 58 in the height direction. Accordingly, each yarn guide 58 restricts the movement of the yarn Y to the other side in the height direction. Therefore, it is possible to prevent the thread Y from being sucked into the intake space Ss. Each of the yarn guides 58 is preferably disposed on one side of the center of the pair of unit wall surfaces 55 in the height direction. Accordingly, it is possible to reliably prevent the thread Y from being sucked into the intake space Ss.

絲線行進空間S經由上述多個進氣狹縫38(參考圖4的(b)以及圖5)而與形成於進氣管道32的進氣空間Ss連接。多個進氣狹縫38例如沿著高度方向貫通管道壁部34(參考圖5)且沿著單元長度方向延伸(參考圖4的(b))。多個進氣狹縫38在冷卻風流動的流動方向上，配置在絲線行進空間S的下游側且是進氣空間Ss的上游側。The thread traveling space S is connected to the intake space Ss formed in the intake duct 32 via the plurality of intake slits 38 (see FIG. 4( b ) and FIG. 5 ). The plurality of intake slits 38 penetrate through the duct wall portion 34 in the height direction (see FIG. 5 ), for example, and extend in the unit length direction (see FIG. 4( b )). The plurality of intake slits 38 are arranged on the downstream side of the yarn running space S and upstream of the intake space Ss in the flow direction of the cooling air flow.

在以上那樣的冷卻裝置14中，當通過負壓生成裝置33使進氣空間Ss產生負壓時，冷卻風在絲線行進空間S內主要從高度方向的一側流向另一側(參考圖5的箭頭)。進而，冷卻風通過進氣狹縫38而被吸入進氣空間Ss。本申請發明人為了提高冷卻裝置14中的絲線Y的冷卻效率，而如以下那樣著眼於減小冷卻風所流動的流路的摩擦阻力(流路阻力)。In the cooling device 14 as above, when the negative pressure generating device 33 generates a negative pressure in the air intake space Ss, the cooling air mainly flows from one side in the height direction to the other side in the thread running space S (refer to FIG. 5 ). arrow). Furthermore, the cooling air is sucked into the intake space Ss through the intake slit 38 . In order to improve the cooling efficiency of the yarn Y in the cooling device 14, the inventors of the present application focused on reducing the frictional resistance (flow path resistance) of the flow path through which the cooling air flows as follows.

(用於提高冷卻效率的構成) 說明對於提高冷卻效率有效的兩個構成。作為第1構成，一對單元壁面55各自在高度方向上的長度(以下，也簡稱為壁面高度)為30mm以下。換言之，在高度方向上，從絲線行進空間S的入口59到進氣狹縫38的一側的端部為止的長度為30mm以下。入口59在高度方向上的位置與一對單元壁面55的高度方向的一側的端部的位置相同(參考圖5)。另外，以往的壁面高度例如為34mm。因而，冷卻裝置14中的壁面高度比以往低。由此，在將絲線行進空間S視為冷卻風的流路時，主要沿著高度方向流動的冷卻風的流路在高度方向上變短。因此，通過減小流路阻力而降低壓力損失，由此即使不提高負壓生成裝置33的輸出，與以往的構成相比也能夠加快冷卻風的風速。另外，如本實施方式那樣，在絲線行進空間S內設置有間隔件57以及導絲器58的情況下，從確保間隔件57以及導絲器58的設置區域的觀點出發，較佳壁面高度為10mm以上。 (Construction for improving cooling efficiency) Two configurations effective for improving cooling efficiency will be described. As a 1st structure, the length of each of a pair of cell wall surfaces 55 in the height direction (it may only be called a wall surface height hereafter) is 30 mm or less. In other words, in the height direction, the length from the entrance 59 of the thread traveling space S to one end of the intake slit 38 is 30 mm or less. The position of the inlet 59 in the height direction is the same as the position of the ends of the pair of cell wall surfaces 55 on one side in the height direction (see FIG. 5 ). In addition, the conventional wall height is, for example, 34 mm. Therefore, the height of the wall surface in the cooling device 14 is lower than before. Accordingly, when the thread running space S is regarded as a cooling air flow path, the cooling air flow path mainly flowing in the height direction becomes shorter in the height direction. Therefore, by reducing the pressure loss by reducing the flow path resistance, the cooling air speed can be increased compared with the conventional configuration without increasing the output of the negative pressure generating device 33 . In addition, when the spacer 57 and the yarn guide 58 are installed in the yarn traveling space S as in the present embodiment, from the viewpoint of ensuring the installation area of the spacer 57 and the yarn guide 58, the preferable wall height is More than 10mm.

接著，說明第2構成。為了便於說明，在單元長度方向上，將配置有一對單元壁面55的區域稱作壁面配置區域R(參考圖4)。為了便於說明，在單元長度方向上，在壁面配置區域R內，將管道壁部34中形成有多個進氣狹縫38的多個區域稱作形成區域R1(參考圖7)。此外，為了便於說明，在單元長度方向上，在壁面配置區域R內，將除了形成區域R1以外的多個區域稱作非形成區域R2(參考圖7)。在單元長度方向上，多個形成區域R1的長度的總和比非形成區域R2的長度的總和長(參考圖4的(b))。換言之，在單元長度方向上，多個形成區域R1的長度的總和比壁面配置區域R的長度的一半長。由此，能夠增大多個進氣狹縫38的剖面積(即，開口面積)的總和。因此，通過減小多個進氣狹縫38中的流路阻力而降低壓力損失，由此能夠加快冷卻風的風速。Next, the second configuration will be described. For convenience of description, in the cell length direction, a region where a pair of cell wall surfaces 55 are arranged is referred to as a wall surface arrangement region R (see FIG. 4 ). For convenience of explanation, in the wall surface arrangement region R in the cell length direction, a plurality of regions in the duct wall portion 34 where the plurality of intake slits 38 are formed is referred to as a formation region R1 (see FIG. 7 ). In addition, for convenience of description, in the cell length direction, within the wall arrangement region R, a plurality of regions other than the formation region R1 are referred to as non-formation regions R2 (see FIG. 7 ). In the cell length direction, the sum of the lengths of the plurality of formed regions R1 is longer than the sum of the lengths of the non-formed regions R2 (see FIG. 4( b )). In other words, the sum of the lengths of the plurality of formation regions R1 is longer than half the length of the wall surface arrangement region R in the cell length direction. Thereby, the sum of the cross-sectional areas (that is, the opening areas) of the plurality of intake slits 38 can be increased. Therefore, by reducing the flow path resistance in the plurality of intake slits 38, the pressure loss can be reduced, whereby the wind speed of the cooling air can be increased.

對第2構成的具體例進行說明。例如，壁面配置區域R在單元長度方向上的長度為550mm。如圖4的(b)所示，與一個冷卻單元31對應地形成有5個進氣狹縫38。即，在一個壁面配置區域R內具有5個形成區域R1。各形成區域R1在單元長度方向上的長度例如為90mm。5個形成區域R1在單元長度方向上的長度的總和為450mm。另外，各形成區域R1的寬度(寬度方向上的長度)例如為3mm。此外，例如，在一個壁面配置區域R內，除了5個形成區域R1以外還存在6個非形成區域R2。各非形成區域R2在單元長度方向上的長度大致相等。6個非形成區域R2在單元長度方向上的長度的總和被設計成100mm。A specific example of the second configuration will be described. For example, the length of the wall arrangement region R in the cell length direction is 550 mm. As shown in FIG. 4( b ), five intake slits 38 are formed corresponding to one cooling unit 31 . That is, there are five formation regions R1 in one wall arrangement region R. The length of each formation region R1 in the cell length direction is, for example, 90 mm. The sum of the lengths of the five formation regions R1 in the cell length direction was 450 mm. In addition, the width (length in the width direction) of each formation region R1 is, for example, 3 mm. In addition, for example, in one wall arrangement region R, there are six non-formation regions R2 in addition to the five formation regions R1. The lengths of the respective non-formation regions R2 in the cell length direction are substantially equal. The sum of the lengths of the six non-formation regions R2 in the cell length direction was designed to be 100 mm.

本申請發明人認為，通過以上那樣的第1構成以及第2構成，能夠降低壓力損失而加快冷卻風的風速。The inventors of the present application considered that the pressure loss can be reduced and the wind speed of the cooling air can be increased by the above-mentioned first structure and second structure.

(與冷卻效率的提高相關的效果確認) 本申請發明人進行了與具有上述第1構成以及/或者第2構成的各種冷卻裝置的冷卻效率的提高相關的以下的評價。參考圖8~圖11對評價內容以及評價結果進行說明。圖8是表示冷卻風的風速以及各種冷卻裝置的消耗電力的評價結果的表。圖9是表示冷卻風的風速與負壓之間的關係的曲線圖。圖10是表示各種冷卻裝置的消耗電力與冷卻風的風速之間的關係的曲線圖。圖11是表示各種冷卻裝置的構成的不同與冷卻風的風速之間的關係的曲線圖。 (Confirmation of the effect related to the improvement of cooling efficiency) The inventors of the present application performed the following evaluations related to the improvement of the cooling efficiency of various cooling devices having the above-mentioned first configuration and/or second configuration. Evaluation contents and evaluation results will be described with reference to FIGS. 8 to 11 . 8 is a table showing the wind speed of cooling air and the evaluation results of power consumption of various cooling devices. Fig. 9 is a graph showing the relationship between the wind speed of cooling air and negative pressure. FIG. 10 is a graph showing the relationship between the power consumption of various cooling devices and the wind speed of cooling air. FIG. 11 is a graph showing the relationship between the difference in configuration of various cooling devices and the wind speed of cooling air.

本申請發明人主要進行了兩個評價。作為第1評價，在與冷卻裝置14同樣具有第1構成以及第2構成的冷卻裝置(圖8~圖10中的「實施例」)與不具有第1構成以及第2構成的冷卻裝置(圖8~圖10中的「比較例」)之間，進行了各種物理性質值的比較。作為第2評價，在僅具有第1構成以及第2構成中的一方的冷卻裝置(未圖示)中，也對冷卻效果是否提高進行了確認(參考圖11)。The inventors of the present application mainly made two evaluations. As the first evaluation, the cooling device having the first structure and the second structure ("Example" in Fig. 8 to Fig. 10 ) and the cooling device not having the first structure and the second structure (Fig. 8 to "Comparative Example" in Fig. 10), various physical property values were compared. As a second evaluation, it was checked whether or not the cooling effect was improved in a cooling device (not shown) having only one of the first configuration and the second configuration (see FIG. 11 ).

對第1評價的內容以及結果進行說明。本申請發明人準備了實施例的冷卻裝置(未圖示)以及比較例的冷卻裝置(未圖示)。實施例的冷卻裝置的構成如以下所述。關於第1構成，壁面高度(一對單元壁面55在高度方向上的長度)為27mm。關於第2構成，與上述具體例同樣地設置有5個形成區域R1。多個形成區域R1在單元長度方向上的長度的總和為450mm。多個非形成區域R2在單元長度方向上的長度的總和為100mm。The contents and results of the first evaluation will be described. The inventors of the present application prepared a cooling device (not shown) of an example and a cooling device (not shown) of a comparative example. The configuration of the cooling device of the embodiment is as follows. Regarding the first configuration, the wall height (the length of the pair of unit wall surfaces 55 in the height direction) is 27 mm. About the 2nd structure, five formation regions R1 are provided similarly to the said specific example. The sum of the lengths of the plurality of formation regions R1 in the cell length direction was 450 mm. The sum of the lengths of the plurality of non-formation regions R2 in the cell length direction was 100 mm.

另一方面，比較例的冷卻裝置的構成如以下所述。關於第1構成，一對單元壁面(未圖示)的高度為34mm。關於上述第2構成，設置有9個形成區域(未圖示)。各形成區域在單元長度方向上的長度為30mm。多個形成區域在單元長度方向上的長度的總和為270mm。此外，設置有10個非形成區域(未圖示)。多個非形成區域在單元長度方向上的長度的總和為280mm。即，在比較例中，多個形成區域在單元長度方向上的長度的總和與多個非形成區域在單元長度方向上的長度的總和相等或比其短。On the other hand, the configuration of the cooling device of the comparative example is as follows. Regarding the first configuration, the height of a pair of cell wall surfaces (not shown) is 34 mm. In the above-mentioned second configuration, nine formation regions (not shown) are provided. The length of each formation region in the cell length direction was 30 mm. The sum of the lengths of the plurality of formation regions in the cell length direction was 270 mm. In addition, 10 non-formation regions (not shown) are provided. The sum of the lengths of the plurality of non-formed regions in the cell length direction was 280 mm. That is, in the comparative example, the sum of the lengths of the plurality of formed regions in the cell length direction is equal to or shorter than the sum of the lengths of the plurality of non-formed regions in the cell length direction.

本申請發明人在實施例的冷卻裝置以及比較例的冷卻裝置中，使公知的鼓風機(負壓生成裝置33)工作，並進行了在進氣空間Ss內生成的負壓(靜壓)的條件設定。更具體而言，本申請發明人為了得到規定的負壓，使用變頻器(變頻裝置37)來切換向馬達(馬達36)發送的訊號的頻率。訊號的頻率與馬達的旋轉軸的轉速成比例。本申請發明人在各條件下取得了絲線行進空間S的入口59附近的風速的時間平均值(平均風速)以及鼓風機的消耗電力值(參考圖8)。使用日本加野麥克斯(Kanomax)有限公司製的風速計即Anemo Master(該公司的注冊商標)來計測冷卻風的風速。更具體而言，風速計的探針的前端部配置在絲線行進空間S的單元長度方向的中央部附近。使用上述變頻器取得鼓風機的消耗電力的資訊。使用公知的壓力計來計測進氣空間Ss的負壓的大小。在圖8中，對於實施例以及比較例示出了上述負壓的絕對值(單位為kPa)、上述頻率(單位為Hz)、上述平均風速(單位為m/s)以及上述消耗電力(單位為kW)。以下，負壓的值用絕對值表示。該絕對值越大，則鼓風機的吸引力越強。The inventors of the present application operated a known blower (negative pressure generating device 33) in the cooling device of the example and the cooling device of the comparative example, and performed the conditions of the negative pressure (static pressure) generated in the intake space Ss. set up. More specifically, the inventors of the present application switched the frequency of the signal sent to the motor (motor 36 ) using an inverter (inverter 37 ) in order to obtain a predetermined negative pressure. The frequency of the signal is proportional to the rotational speed of the motor's rotating shaft. The inventors of the present application obtained the time average value (average wind speed) of the wind speed near the entrance 59 of the yarn running space S and the power consumption value of the blower under various conditions (see FIG. 8 ). The wind speed of the cooling wind was measured using Anemo Master (registered trademark of the company) which is an anemometer manufactured by Kanomax Co., Ltd., Japan. More specifically, the tip of the probe of the anemometer is arranged near the central portion of the wire running space S in the cell longitudinal direction. Use the above-mentioned inverter to obtain information on the power consumption of the blower. The magnitude of the negative pressure in the intake space Ss is measured using a known pressure gauge. In Fig. 8, the absolute value of the above-mentioned negative pressure (unit is kPa), the above-mentioned frequency (unit is Hz), the above-mentioned average wind speed (unit is m/s), and the above-mentioned power consumption (unit is m/s) are shown for the embodiment and the comparative example. kW). Hereinafter, the value of the negative pressure is represented by an absolute value. The larger the absolute value, the stronger the suction of the blower.

在實施例以及比較例的雙方中，負壓的設定值在0.3kPa、0.6kPa以及1.0kPa這3個條件之間切換。負壓的設定值越大，則上述頻率越大(即，馬達的旋轉軸的轉速越大)。另外，當負壓變大時，在實施例與比較例之間，該頻率之差逐漸變大。具體而言，在負壓的設定值為0.3kPa時，實施例中的頻率以及比較例中的頻率均為22Hz。另一方面，在負壓的設定值為1.0kPa時，實施例中的頻率為42Hz，比較例中的頻率為46Hz。即，得到如下結果：在實施例中，與比較例相比，即使馬達的旋轉軸的轉速較小，也能夠生成相同大小的負壓。根據該結果推定出：在實施例的冷卻裝置中，由於通過上述第1構成以及第2構成降低了壓力損失的原因，對馬達的負載減少。In both the example and the comparative example, the set value of the negative pressure was switched among three conditions of 0.3 kPa, 0.6 kPa, and 1.0 kPa. The greater the set value of the negative pressure, the greater the frequency (that is, the greater the rotational speed of the rotating shaft of the motor). In addition, as the negative pressure increases, the difference in frequency gradually increases between the example and the comparative example. Specifically, when the set value of the negative pressure was 0.3 kPa, both the frequency in the example and the frequency in the comparative example were 22 Hz. On the other hand, when the set value of the negative pressure was 1.0 kPa, the frequency in the example was 42 Hz, and the frequency in the comparative example was 46 Hz. That is, it was found that in the example, the negative pressure of the same magnitude could be generated even when the rotational speed of the rotating shaft of the motor was lower than that of the comparative example. From this result, it is presumed that in the cooling device of the embodiment, the load on the motor is reduced due to the reduction of the pressure loss by the above-mentioned first configuration and the second configuration.

在圖9的曲線圖中，基於圖8的表而表示了實施例以及比較例中的平均風速與負壓之間的關係。橫軸表示負壓，縱軸表示平均風速。在負壓的設定值為0.3kPa時，比較例中的平均風速為0.96m/s，實施例中的平均風速為1.77m/s。在負壓的設定值為0.6kPa時，比較例中的平均風速為1.19m/s，實施例中的平均風速為2.57m/s。在負壓的設定值為1.0kPa時，比較例中的平均風速為1.35m/s，實施例中的平均風速為3.07m/s。在各個負壓的條件下，實施例中的平均風速為比較例中的平均風速的大約2倍。由此可知，在實施例中能夠得到較大的風速(即，冷卻效率提高)。The graph of FIG. 9 shows the relationship between the average wind speed and the negative pressure in Examples and Comparative Examples based on the table in FIG. 8 . The horizontal axis represents the negative pressure, and the vertical axis represents the average wind speed. When the set value of the negative pressure is 0.3kPa, the average wind speed in the comparative example is 0.96m/s, and the average wind speed in the embodiment is 1.77m/s. When the set value of the negative pressure is 0.6kPa, the average wind speed in the comparative example is 1.19m/s, and the average wind speed in the embodiment is 2.57m/s. When the set value of the negative pressure is 1.0 kPa, the average wind speed in the comparative example is 1.35 m/s, and the average wind speed in the embodiment is 3.07 m/s. Under each negative pressure condition, the average wind speed in the examples was about twice that in the comparative example. From this, it can be seen that in the example, a higher wind speed can be obtained (that is, the cooling efficiency is improved).

另外，如上所述，在實施例的冷卻裝置中，負壓的設定值為0.3kPa時的平均風速為1.77m/s。該值比在比較例的冷卻裝置中負壓的設定值為1.0kPa時的平均風速(1.35m/s)大。如此，在實施例中，即使負壓較小也能夠得到非常大的風速(即，冷卻效率大幅度提高)。In addition, as described above, in the cooling device of the embodiment, the average wind speed when the set value of the negative pressure is 0.3 kPa is 1.77 m/s. This value is larger than the average wind speed (1.35 m/s) when the set value of the negative pressure is 1.0 kPa in the cooling device of the comparative example. In this way, in the embodiment, even if the negative pressure is small, a very high wind speed can be obtained (that is, the cooling efficiency is greatly improved).

在圖10的曲線圖中，基於圖8的表而表示了實施例以及比較例中的消耗電力與平均風速之間的關係。橫軸表示平均風速，縱軸表示鼓風機(尤其是馬達)的消耗電力。例如，在比較例中，為了得到1.35m/s的風速所需要的消耗電力為3.05kW。此時的上述頻率為46Hz。與此相對，在實施例中，為了得到1.77m/s的風速所需要的消耗電力僅為0.34kW。此時的上述頻率為22Hz。即，在實施例中，為了得到與以往相同程度的風速所需要的消耗電力與以往相比削減了大約90%。一般情況下，已知能夠變更旋轉軸的轉速的馬達的消耗電力與相應轉速的三次方成比例。因而，可以認為能夠得到這樣顯著的消耗電力的降低效果(即，冷卻效率大幅度提高)。In the graph of FIG. 10, the relationship between the power consumption and the average wind speed in the Example and the comparative example is shown based on the table|surface of FIG. The horizontal axis represents the average wind speed, and the vertical axis represents the power consumption of the blower (especially the motor). For example, in the comparative example, the power consumption required to obtain a wind speed of 1.35 m/s is 3.05 kW. The above frequency at this time is 46 Hz. On the other hand, in the example, the power consumption required to obtain a wind speed of 1.77 m/s is only 0.34 kW. The above-mentioned frequency at this time is 22 Hz. That is, in the embodiment, the power consumption required to obtain the same level of wind speed as in the past has been reduced by about 90% compared with the past. Generally, it is known that the power consumption of a motor capable of changing the rotational speed of a rotating shaft is proportional to the cube of the corresponding rotational speed. Therefore, it is considered that such a remarkable reduction effect of power consumption (that is, a significant improvement in cooling efficiency) can be obtained.

如上所述，可知在實施例的冷卻裝置中，即使不增大負壓也能夠增大風速，且能夠降低消耗電力。這些效果均意味著冷卻效率的提高。另外，在實施例中壁面高度被設定為27mm，但只要壁面高度比以往的34mm低(例如，為30mm以下)，就能夠預計冷卻效率大幅度提高。此外，如果該高度比27mm低，則能夠預計冷卻效率進一步提高。As described above, it can be seen that in the cooling device of the embodiment, the wind speed can be increased without increasing the negative pressure, and the power consumption can be reduced. These effects all mean improvement in cooling efficiency. In addition, the height of the wall surface was set to 27 mm in the example, but if the height of the wall surface is lower than the conventional 34 mm (for example, 30 mm or less), it can be expected that the cooling efficiency will be greatly improved. In addition, if the height is lower than 27 mm, it can be expected that the cooling efficiency will further improve.

接著，對第2評價的內容以及結果進行說明。本申請發明人對於冷卻裝置14僅具有第1構成(壁面高度為30mm以下)以及第2構成(形成區域R1的上述長度的總和比非形成區域R2的上述長度的總和長)中的一方的情況，也評價了冷卻效率是否提高。本申請發明人準備了以下4種冷卻裝置。第1種冷卻裝置是上述實施例的冷卻裝置，具有第1構成以及第2構成的雙方。第2種冷卻裝置僅具有第1構成(此處，壁面高度為27mm)。即，在第2種冷卻裝置中，形成區域R1的上述長度的總和與上述比較例相同。第3種冷卻裝置僅具有第2構成。即，在第3種冷卻裝置中，壁面高度與上述比較例相同。第4種冷卻裝置是上述比較例的冷卻裝置。Next, the contents and results of the second evaluation will be described. The inventors of the present application regard the case where the cooling device 14 has only one of the first configuration (the height of the wall surface is 30 mm or less) and the second configuration (the sum of the above-mentioned lengths of the formation region R1 is longer than the sum of the above-mentioned lengths of the non-formation region R2). , also evaluated whether the cooling efficiency was improved. The inventors of the present application prepared the following four types of cooling devices. The first cooling device is the cooling device of the above-mentioned embodiment, and has both the first configuration and the second configuration. The second type of cooling device has only the first configuration (here, the height of the wall surface is 27 mm). That is, in the second cooling device, the sum of the above-mentioned lengths forming the region R1 is the same as that of the above-mentioned comparative example. The third cooling device has only the second configuration. That is, in the third cooling device, the height of the wall surface is the same as that of the above-mentioned comparative example. The fourth type of cooling device is the cooling device of the above-mentioned comparative example.

本申請發明人將進氣空間Ss的負壓設定為恒定的條件，對於第1~第4種冷卻裝置分別取得了冷卻風的風速的資訊。圖11的柱狀圖表示其結果。縱軸表示風速。作為概要，在第1~第3種冷卻裝置的任一個中，都能夠得到大於比較例的風速(即，較高的冷卻效率)。即，可知只要具有上述第1構成以及第2構成中的至少一方，就能夠提高冷卻效率。The inventors of the present application set the negative pressure of the intake space Ss under a constant condition, and obtained information on the wind speed of the cooling air for each of the first to fourth cooling devices. The bar graph in Fig. 11 shows the results. The vertical axis represents wind speed. In summary, in any of the first to third types of cooling devices, a wind speed higher than that of the comparative example (that is, higher cooling efficiency) can be obtained. That is, it turns out that cooling efficiency can be improved by having at least one of the said 1st structure and 2nd structure.

如上所述，一對單元壁面55各自在高度方向上的長度(壁面高度)為30mm以下。由此，冷卻風流動的流路變短。因此，能夠減小流路阻力而降低壓力損失，因此能夠得到較大的風速。因而，能夠提高絲線Y的冷卻效率。As described above, each of the pair of cell wall surfaces 55 has a length in the height direction (wall surface height) of 30 mm or less. Accordingly, the flow path through which the cooling air flows is shortened. Therefore, flow path resistance can be reduced to reduce pressure loss, and thus a high wind speed can be obtained. Therefore, the cooling efficiency of the wire Y can be improved.

此外，形成區域R1在單元長度方向上的長度的總和比非形成區域R2在單元長度方向上的長度的總和長。由此，能夠增大進氣狹縫38的剖面積(即，開口面積)。因此，能夠減小流路阻力而降低壓力損失，因此能夠得到較大的風速。因而，能夠提高絲線Y的冷卻效率。In addition, the sum of the lengths of the formed regions R1 in the cell length direction is longer than the sum of the lengths of the non-formed regions R2 in the cell length direction. Thereby, the cross-sectional area (that is, the opening area) of the intake slit 38 can be increased. Therefore, flow path resistance can be reduced to reduce pressure loss, and thus a high wind speed can be obtained. Therefore, the cooling efficiency of the wire Y can be improved.

此外，一對單元壁面55中的在寬度方向上相互面對的部分在寬度方向上的間隔G為1mm以下。一般情況下，如果流體的流量相同，則流路的剖面積越小、流體的流速越快。但是，當流路的寬度過窄時，由形成流路的壁面所導致的壓力損失變大，流體的流量變少。關於這一點，在本實施方式中，能夠通過降低壁面高度來降低由一對單元壁面55所導致的壓力損失。因此，即使減小間隔G，也能夠抑制由此導致的壓力損失的增加。因而，能夠減小絲線行進空間S的與高度方向正交的剖面的面積，能夠進一步加快風速。In addition, the gap G in the width direction of portions facing each other in the width direction among the pair of cell wall surfaces 55 is 1 mm or less. Generally, if the flow rate of the fluid is the same, the smaller the cross-sectional area of the flow path, the faster the flow rate of the fluid. However, when the width of the flow path is too narrow, the pressure loss due to the wall surface forming the flow path increases, and the flow rate of the fluid decreases. In this regard, in this embodiment, the pressure loss due to the pair of cell wall surfaces 55 can be reduced by reducing the height of the wall surfaces. Therefore, even if the gap G is reduced, an increase in pressure loss caused thereby can be suppressed. Therefore, the area of the cross section perpendicular to the height direction of the thread running space S can be reduced, and the wind speed can be further increased.

此外，冷卻單元31具有1個以上的導絲器58。能夠通過該導絲器58來限制絲線Y向高度方向的另一側移動，因此能夠抑制絲線Y進入進氣管道32。進而，導絲器58在高度方向上配置在遠離進氣管道32的位置，因此能夠使絲線Y在高度方向上整體遠離進氣管道32。因而，能夠可靠地防止絲線Y進入進氣空間Ss。In addition, the cooling unit 31 has one or more yarn guides 58 . Since the movement of the wire Y to the other side in the height direction can be restricted by the wire guide 58 , it is possible to suppress the wire Y from entering the intake duct 32 . Furthermore, since the yarn guide 58 is arranged at a position away from the intake duct 32 in the height direction, the entirety of the yarn Y can be separated from the intake duct 32 in the height direction. Thus, it is possible to reliably prevent the wire Y from entering the intake space Ss.

此外，在本實施方式中，能夠使絲線Y一邊與接觸體56a以及接觸體56b交替地接觸一邊行進。由此，絲線Y在寬度方向上的移動被限制。此外，通過使絲線Y與由冷卻風冷卻後的接觸體56a或者接觸體56b接觸，由此能夠更有效地冷卻絲線Y。In addition, in this embodiment, it is possible to run the thread Y while contacting the contact body 56a and the contact body 56b alternately. Thus, movement of the wire Y in the width direction is restricted. Moreover, the wire Y can be cooled more effectively by bringing the wire Y into contact with the contact body 56a or the contact body 56b cooled by the cooling air.

此外，通過負壓生成裝置33生成從絲線行進空間S朝向進氣空間Ss的冷卻風。一般情況下，絲線Y被施加有用於使絲線Y順暢地行進的油劑。因此，例如在從管道內空間朝向絲線行進空間S供給冷卻風的構成中，油劑有可能向外部空間(更具體而言為作業空間Sw)飛散。關於這一點，在本實施方式中，冷卻風被吸入進氣空間Ss，因此能夠避免油劑飛散的問題。In addition, the negative pressure generating device 33 generates cooling air from the yarn running space S toward the intake space Ss. In general, the thread Y is applied with an oil agent for making the thread Y run smoothly. Therefore, for example, in the configuration in which the cooling air is supplied from the duct inner space toward the thread running space S, the oil agent may be scattered to the external space (more specifically, the working space Sw). In this regard, in this embodiment, the cooling air is sucked into the intake space Ss, so that the problem of oil agent scattering can be avoided.

此外，負壓生成裝置33具有葉輪35、馬達36以及變頻裝置37。在冷卻效率提高了的冷卻裝置14中，通過變頻裝置37使馬達36的旋轉軸的轉速比以往減少，由此能夠在得到所希望的風速的同時，大幅度削減負壓生成裝置33的消耗電力。In addition, the negative pressure generator 33 has an impeller 35 , a motor 36 , and an inverter 37 . In the cooling device 14 with improved cooling efficiency, the rotation speed of the rotating shaft of the motor 36 is reduced by the inverter device 37 compared to conventional ones, thereby obtaining a desired wind speed and significantly reducing the power consumption of the negative pressure generating device 33 .

此外，能夠在通過冷卻裝置14有效地冷卻絲線Y的同時，實現冷卻裝置14的小型化以及/或者消耗電力的降低。能夠在確保由假撚加工機1加工的絲線Y的良好品質的同時，實現假撚加工機1整體的小型化以及/或者消耗電力的降低。In addition, it is possible to reduce the size of the cooling device 14 and/or reduce power consumption while effectively cooling the wire Y by the cooling device 14 . It is possible to reduce the size of the entire false twisting machine 1 and/or reduce power consumption while ensuring high quality of the yarn Y processed by the false twisting machine 1 .

接著，說明對上述實施方式施加了變更的變形例。但是，對於具有與上述實施方式相同構成的部分，標注相同的符號而適當省略其說明。Next, a modified example in which changes are made to the above-described embodiment will be described. However, parts having the same configuration as those in the above-mentioned embodiment are denoted by the same reference numerals and their descriptions are appropriately omitted.

(1)在上述實施方式中，一對單元壁面55中的在寬度方向上相互面對的部分在寬度方向上的間隔G為1mm以下。但是，並不限定於此。間隔G也可以大於1mm。(1) In the above-described embodiment, the gap G in the width direction of portions of the pair of cell wall surfaces 55 that face each other in the width direction is 1 mm or less. However, it is not limited to this. The spacing G can also be greater than 1 mm.

(2)在上述為止的實施方式中，冷卻單元31具有接觸體56a以及接觸體56b。但是，並不限定於此。不一定必須設置接觸體56a以及接觸體56b。(2) In the above embodiments, the cooling unit 31 has the contact body 56a and the contact body 56b. However, it is not limited to this. The contact body 56a and the contact body 56b do not necessarily have to be provided.

(3)在上述為止的實施方式中，在高度方向上，1個以上的導絲器58的一側的端部配置在比一對單元壁面55的中央靠一側的位置。但是，並不限定於此。1個以上的導絲器58的一側的端部也可以配置在比一對單元壁面55的中央靠另一側的位置。(3) In the above-mentioned embodiments, one end portion of one or more yarn guides 58 is disposed on one side of the center of the pair of unit wall surfaces 55 in the height direction. However, it is not limited to this. One end of one or more yarn guides 58 may be arranged on the other side from the center of the pair of unit wall surfaces 55 .

(4)在上述為止的實施方式中，冷卻單元31具有1個以上的導絲器58。但是，並不限定於此。不一定必須設置導絲器58。在這種構成中，不需要確保用於設置導絲器58的區域。因而，上述壁面高度也可以比10mm低。壁面高度例如可以為5mm。另外，在這種構成中，為了防止絲線Y被吸入進氣空間Ss，較佳採取某些措施。(4) In the above embodiments, the cooling unit 31 has one or more yarn guides 58 . However, it is not limited to this. The yarn guide 58 does not necessarily have to be provided. In such a configuration, it is not necessary to secure an area for installing the yarn guide 58 . Therefore, the above-mentioned wall surface height may be lower than 10 mm. The height of the wall can be, for example, 5 mm. Also, in this constitution, in order to prevent the thread Y from being sucked into the intake space Ss, it is preferable to take some measure.

(5)在上述為止的實施方式中，冷卻單元31具有間隔件57。但是，並不限定於此。也可以代替間隔件57，而通過定位部件(未圖示)來規定單元壁面55a與單元壁面55b在寬度方向上的位置關係。(5) In the above embodiments, the cooling unit 31 has the spacer 57 . However, it is not limited to this. Instead of the spacer 57, the positional relationship in the width direction of the unit wall surface 55a and the unit wall surface 55b may be prescribed|regulated by the positioning member (not shown).

(6)在上述為止的實施方式中，冷卻單元31具有鈑金加工成的一對單元壁板51。但是，並不限定於此。作為與本發明的一對單元壁部相當的構成，也可以代替一對單元壁板51，例如設置切削加工成的一對塊部件(未圖示)。與一對單元壁面55相當的一對壁面也可以形成於一對塊部件。在該情況下，該一對壁面也可以形成為，不像一對單元壁面55那樣具有彎曲面，而在與單元長度方向正交的剖面中成為大致直線狀。(6) In the embodiments described above, the cooling unit 31 has a pair of unit wall plates 51 formed by sheet metal processing. However, it is not limited to this. As a configuration corresponding to the pair of unit wall portions of the present invention, instead of the pair of unit wall plates 51 , for example, a pair of cut block members (not shown) may be provided. A pair of wall surfaces corresponding to the pair of unit wall surfaces 55 may also be formed in a pair of block members. In this case, the pair of wall surfaces may not have a curved surface like the pair of cell wall surfaces 55 , but may be substantially linear in a cross section perpendicular to the cell longitudinal direction.

或者，與一對單元壁面55相當的一對壁面，例如也可以通過對一個塊狀的部件進行切削加工來形成。在該情況下，也可以不設置上述間隔件57或者定位部件(未圖示)。Alternatively, a pair of wall surfaces corresponding to the pair of cell wall surfaces 55 may be formed by, for example, cutting a single block-shaped member. In this case, the above-mentioned spacer 57 or positioning member (not shown) may not be provided.

或者，與一對單元壁面55相當的一對壁面，例如也可以通過對管道壁部34的一部分進行切削加工來形成。在該情況下，也可以進一步降低壁面高度。壁面高度例如也可以為1mm。在該情況下，也可以不設置間隔件57或者定位部件(未圖示)。Alternatively, a pair of wall surfaces corresponding to the pair of unit wall surfaces 55 may be formed, for example, by cutting a part of the duct wall portion 34 . Also in this case, the height of the wall surface can be further reduced. The wall height can also be, for example, 1 mm. In this case, the spacer 57 or the positioning member (not shown) may not be provided.

(7)在上述為止的實施方式中，與一個冷卻單元31對應地在管道壁部34設置有多個進氣狹縫38。但是，並不限定於此。例如，也可以與一個冷卻單元31對應地設置有一個細長的進氣狹縫(未圖示)。進而，該一個進氣狹縫也可以在單元長度方向上遍及壁面配置區域R的整體形成。這種構成也包含於本發明的「1個以上的形成區域的長度的總和比除了1個以上的形成區域以外的區域的長度的總和長」的構成。(7) In the embodiments described above, a plurality of intake slits 38 are provided in the duct wall portion 34 corresponding to one cooling unit 31 . However, it is not limited to this. For example, one elongated air intake slit (not shown) may also be provided corresponding to one cooling unit 31 . Furthermore, the one intake slit may be formed over the entire wall surface arrangement region R in the cell length direction. Such a configuration is also included in the configuration that "the sum of the lengths of one or more formation regions is longer than the sum of the lengths of regions other than the one or more formation regions" in the present invention.

(8)在上述為止的實施方式中，負壓生成裝置33具有作為交流馬達的馬達36以及變頻裝置37。但是，並不限定於此。也可以代替馬達36，例如設置有未圖示的直流馬達。在此基礎上，也可以通過變更對直流馬達施加的電壓的大小來變更馬達的旋轉軸的轉速。(8) In the embodiments described above, the negative pressure generating device 33 has the motor 36 as an AC motor and the inverter device 37 . However, it is not limited to this. Instead of the motor 36, for example, a DC motor not shown may be provided. In addition to this, it is also possible to change the rotational speed of the rotating shaft of the motor by changing the magnitude of the voltage applied to the DC motor.

(9)在上述為止的實施方式中，負壓生成裝置33構成為能夠變更馬達36(或者未圖示的直流馬達)的旋轉軸的轉速。但是，並不限定於此。負壓生成裝置33例如也可以具有在向葉輪傳遞動力的傳遞方向上配置在旋轉軸與葉輪35之間的動力傳遞機構(未圖示)。動力傳遞機構例如也可以具有未圖示的多個齒輪，並構成為能夠切換齒輪比。通過這種構成，也可以通過切換葉輪35的轉速來變更所生成的負壓的大小。(9) In the embodiments described above, the negative pressure generating device 33 is configured to be able to change the rotational speed of the rotating shaft of the motor 36 (or a DC motor not shown). However, it is not limited to this. The negative pressure generating device 33 may have, for example, a power transmission mechanism (not shown) arranged between the rotating shaft and the impeller 35 in the direction of power transmission to the impeller. The power transmission mechanism may have, for example, a plurality of gears not shown, and may be configured so that the gear ratio can be switched. With such a configuration, the magnitude of the generated negative pressure can also be changed by switching the rotation speed of the impeller 35 .

(10)在上述為止的實施方式中，負壓生成裝置33為鼓風機。但是，並不限定於此。作為本發明的負壓生成裝置，例如也可以設置有未圖示的風扇或者未圖示的吸氣器。(10) In the above embodiments, the negative pressure generating device 33 is a blower. However, it is not limited to this. As the negative pressure generating device of the present invention, for example, a fan not shown or an aspirator not shown may be provided.

(11)在上述為止的實施方式中，通過利用負壓生成裝置33使進氣空間Ss(管道內空間)產生負壓，由此向絲線行進空間S供給冷卻風。但是，並不限定於此。也可以代替負壓生成裝置33，而設置有使管道內空間產生正壓(比冷卻裝置14外側的空間的氣壓高的壓力)的裝置。在該情況下，從管道內空間朝向絲線行進空間S供給冷卻風。在該情況下，也能夠通過減小流路阻力來降低壓力損失。另外，在這種構成中，冷卻風朝向作業空間Sw噴出。當冷卻風朝向作業空間Sw噴出時，如上所述，油劑有可能向作業空間Sw飛散。因而，在這種構成中，也可以設置有以防止油劑向作業空間Sw飛散的方式構成的飛散防止裝置(未圖示)。(11) In the above-mentioned embodiments, the cooling air is supplied to the yarn running space S by generating a negative pressure in the intake space Ss (duct inner space) by the negative pressure generating device 33 . However, it is not limited to this. Instead of the negative pressure generating device 33 , a device for generating a positive pressure (a pressure higher than the air pressure of the space outside the cooling device 14 ) in the space inside the duct may be provided. In this case, the cooling air is supplied from the duct inner space toward the wire running space S. As shown in FIG. Also in this case, the pressure loss can be reduced by reducing the flow path resistance. In addition, in this configuration, the cooling air is blown toward the work space Sw. When the cooling air is ejected toward the work space Sw, the oil agent may be scattered into the work space Sw as described above. Therefore, in such a configuration, a scattering preventing device (not shown) configured to prevent the oil agent from scattering into the working space Sw may be provided.

(12)上述冷卻裝置14並不限定於假撚加工機1，也能夠應用於具有其他構成的公知的假撚加工機(未圖示)。例如，本發明也可以應用於日本特開2009-74219號公報所記載的假撚加工機(未圖示)。該假撚加工機構成為能夠將2根絲線進行並絲而形成1根絲線。該假撚加工機構成為能夠將並絲後的1根絲線或者未並絲的2根絲線卷取於單個搖架。作為例子，也可以將本發明應用於這種假撚加工機。或者，冷卻裝置14除了假撚加工機以外，例如還能夠應用於公知的空氣加工機(未圖示)等一邊使絲線(未圖示)行進一邊進行加工的絲線加工機。(12) The above-mentioned cooling device 14 is not limited to the false twist processing machine 1, and may be applied to a known false twist processing machine (not shown) having another configuration. For example, the present invention can also be applied to a false twist processing machine (not shown) described in JP-A-2009-74219. This false twist processing mechanism is capable of paralleling two yarns to form one yarn. This false twist processing mechanism is capable of winding one yarn that has been paralleled or two yarns that have not been paralleled to a single cradle. As an example, the present invention can also be applied to such a false twist processing machine. Alternatively, the cooling device 14 can be applied to, for example, a yarn processing machine that processes a yarn (not shown) while traveling, such as a known air processor (not shown), other than a false twist processing machine.

1:假撚加工機(絲線加工機) 11:第1供絲輥(絲線輸送裝置) 14:冷卻裝置 15:假撚裝置(絲線變形施加裝置) 31:冷卻單元 31A:冷卻單元 32:進氣管道(管道) 33:負壓生成裝置 34:管道壁部 35:葉輪 36:馬達 37:變頻裝置(轉速變更部) 38:進氣狹縫(狹縫) 51:單元壁板(單元壁部) 51a:單元壁板(單元壁部) 51b:單元壁板(單元壁部) 55:單元壁面 55a:單元壁面 55b:單元壁面 56a:接觸體(第1接觸部) 56b:接觸體(第2接觸部) 58:導絲器 G:間隔 R:壁面配置區域 R1:形成區域 R2:非形成區域 S:絲線行進空間 Ss:進氣空間(管道內空間) Y:絲線 1: False twist processing machine (thread processing machine) 11: The first wire feeding roller (wire conveying device) 14: cooling device 15: False twisting device (filament deformation application device) 31: cooling unit 31A: cooling unit 32: Intake pipe (pipe) 33: Negative pressure generating device 34: pipe wall 35: impeller 36: motor 37: Frequency conversion device (speed changing part) 38: Air intake slit (slit) 51: Unit wall (unit wall) 51a: Unit wall (unit wall) 51b: Unit wall plate (unit wall) 55: unit wall 55a: unit wall 55b: unit wall 56a: contact body (first contact part) 56b: contact body (second contact part) 58: wire guide G: Interval R: wall configuration area R1: formation area R2: non-forming region S: Silk thread travel space Ss: air intake space (space inside the pipe) Y: silk thread

[圖1]是本實施方式的假撚加工機的側視圖。 [圖2]是沿著絲線的路徑將假撚加工機展開的示意圖。 [圖3]是圖1的III箭頭圖。 [圖4]的(a)是圖3的一部分的放大圖，(b)是在圖3的一部分的放大圖中用虛線表示冷卻單元的圖。 [圖5]是圖4的(a)的V-V線剖面圖。 [圖6]是將冷卻單元進一步示意化的圖。 [圖7]是圖4的(b)的一部分的放大圖。 [圖8]是表示冷卻風的風速以及冷卻裝置的消耗電力的評價結果的表。 [圖9]是表示冷卻風的風速與負壓之間的關係的曲線圖。 [圖10]是表示冷卻裝置的消耗電力與冷卻風的風速之間的關係的曲線圖。 [圖11]是表示冷卻裝置的構成的不同與冷卻風的風速之間的關係的曲線圖。 [FIG. 1] It is a side view of the false twist processing machine of this embodiment. [Fig. 2] is a schematic view of the false twist processing machine unfolded along the path of the yarn. [ Fig. 3 ] is a diagram of arrow III of Fig. 1 . (a) of [FIG. 4] is an enlarged view of a part of FIG. 3, and (b) is a figure which shows the cooling unit by the dotted line in the enlarged view of a part of FIG. [ Fig. 5 ] It is a V-V sectional view of Fig. 4( a ). [ Fig. 6 ] is a further schematic diagram of a cooling unit. [ Fig. 7 ] It is an enlarged view of a part of (b) of Fig. 4 . [ Fig. 8 ] is a table showing the evaluation results of the wind speed of the cooling air and the power consumption of the cooling device. [ Fig. 9 ] is a graph showing the relationship between the wind speed of the cooling air and the negative pressure. [ Fig. 10 ] is a graph showing the relationship between the power consumption of the cooling device and the wind speed of the cooling air. [ Fig. 11 ] is a graph showing the relationship between the difference in the configuration of the cooling device and the wind speed of the cooling air.

31:冷卻單元 31: cooling unit

31A:冷卻單元 31A: cooling unit

32:進氣管道(管道) 32: Intake pipe (pipe)

34:管道壁部 34: pipe wall

38:進氣狹縫(狹縫) 38: Air intake slit (slit)

51:單元壁板(單元壁部) 51: Unit wall (unit wall)

51a:單元壁板(單元壁部) 51a: Unit wall (unit wall)

51b:單元壁板(單元壁部) 51b: Unit wall plate (unit wall)

52a:基端部 52a: base end

52b:基端部 52b: base end

53a:中間部 53a: middle part

53b:中間部 53b: middle part

54a:前端部 54a: front end

54b:前端部 54b: front end

55:單元壁面 55: unit wall

55a:單元壁面 55a: unit wall

55b:單元壁面 55b: unit wall

56a:接觸體(第1接觸部) 56a: contact body (first contact part)

56b:接觸體(第2接觸部) 56b: contact body (second contact part)

57:間隔件 57: spacer

58:導絲器 58: wire guide

Ss:進氣空間(管道內空間) Ss: intake space (space inside the pipe)

Y:絲線 Y: silk thread

Claims

一種冷卻裝置，構成為通過冷卻風對行進的絲線進行冷卻，其特徵在於，具備：冷卻單元，其形成為，供上述絲線行進的絲線行進空間沿著規定的長度方向延伸；以及管道，形成有與上述絲線行進空間連接的管道內空間，上述管道具有管道壁部，該管道壁部形成有在上述冷卻風流動的流動方向上配置在上述絲線行進空間與上述管道內空間之間且沿著上述長度方向延伸的1個以上的狹縫，上述冷卻單元具有在與上述長度方向正交的高度方向上配置在上述管道壁部的一側的一對單元壁部，上述一對單元壁部具有一對單元壁面，該一對單元壁面在與上述長度方向以及上述高度方向的雙方正交的寬度方向上隔著上述絲線行進空間而配置在相互相反側，上述一對單元壁面各自在上述高度方向上的長度為30mm以下。 A cooling device, configured to cool the traveling wire by cooling air, is characterized in that it has: a cooling unit formed such that a wire traveling space in which the above-mentioned wire travels extends along a predetermined length direction; and a pipe formed with an inner space in the pipe connected to the space in which the thread travels, The duct has a duct wall portion formed with one or more slits arranged between the thread running space and the duct inner space in the flow direction of the cooling air flow and extending along the longitudinal direction, The cooling unit has a pair of unit wall portions disposed on one side of the duct wall portion in a height direction perpendicular to the longitudinal direction, The pair of cell wall portions has a pair of cell wall surfaces disposed on opposite sides of each other across the thread running space in a width direction perpendicular to both the longitudinal direction and the height direction, Each of the pair of cell wall surfaces has a length in the height direction of 30 mm or less.

一種冷卻裝置，構成為通過冷卻風對行進的絲線進行冷卻，其特徵在於，具備：冷卻單元，其形成為，供上述絲線行進的絲線行進空間沿著規定的長度方向延伸；以及管道，形成有與上述絲線行進空間連接的管道內空間，上述管道具有管道壁部，該管道壁部形成有在上述冷卻風流動的流動方向上配置在上述絲線行進空間與上述管道內空間之間且沿著上述長度方向延伸的1個以上的狹縫，上述冷卻單元具有在與上述長度方向正交的高度方向上配置在上述管道壁部的一側的一對單元壁部，上述一對單元壁部具有一對單元壁面，該一對單元壁面在與上述長度方向以及上述高度方向的雙方正交的寬度方向上隔著上述絲線行進空間而配置在相互相反側，在上述長度方向上，在配置有上述一對單元壁面的壁面配置區域內，上述管道壁部中的形成有上述1個以上的狹縫的1個以上的形成區域的長度的總和比除了上述1個以上的形成區域以外的區域的長度的總和長。 A cooling device, configured to cool the traveling wire by cooling air, is characterized in that it has: a cooling unit formed such that a wire traveling space in which the above-mentioned wire travels extends along a predetermined length direction; and a pipe formed with an inner space in the pipe connected to the space in which the thread travels, The duct has a duct wall portion formed with one or more slits arranged between the thread running space and the duct inner space in the flow direction of the cooling air flow and extending along the longitudinal direction, The cooling unit has a pair of unit wall portions disposed on one side of the duct wall portion in a height direction perpendicular to the longitudinal direction, The pair of cell wall portions has a pair of cell wall surfaces disposed on opposite sides of each other across the thread running space in a width direction perpendicular to both the longitudinal direction and the height direction, In the longitudinal direction, in the wall arrangement region where the pair of cell walls are arranged, the ratio of the sum of the lengths of the one or more formation regions in the duct wall portion where the one or more slits are formed is divided by the above 1 The sum of the lengths of the regions other than the more than one formation region is longer.

如請求項1所述的冷卻裝置，其中，在上述長度方向上，在配置有上述一對單元壁面的壁面配置區域內，上述管道壁部中的形成有上述1個以上的狹縫的1個以上的形成區域的長度的總和比除了上述1個以上的形成區域以外的區域的長度的總和長。 The cooling device as claimed in claim 1, wherein, In the longitudinal direction, in the wall arrangement region where the pair of cell walls are arranged, the ratio of the sum of the lengths of the one or more formation regions in the duct wall portion where the one or more slits are formed is divided by the above 1 The sum of the lengths of the regions other than the more than one formation region is longer.

如請求項1或3所述的冷卻裝置，其中，上述一對單元壁面中的在上述寬度方向上相互面對的部分在上述寬度方向上的間隔為1mm以下。 The cooling device according to claim 1 or 3, wherein, Parts of the pair of cell wall surfaces facing each other in the width direction have an interval in the width direction of 1 mm or less.

如請求項1至4中任一項所述的冷卻裝置，其中，上述冷卻單元具有1個以上的導絲器，該1個以上的導絲器配置在上述絲線行進空間中，且構成為限制上述絲線向上述高度方向的另一側移動。 The cooling device according to any one of claims 1 to 4, wherein, The cooling unit includes one or more yarn guides arranged in the yarn running space and configured to restrict movement of the yarn to the other side in the height direction.

如請求項5所述的冷卻裝置，其中，在上述高度方向上，上述1個以上的導絲器的上述一側的端部配置在比上述一對單元壁面的中央靠上述一側的位置。 The cooling device as claimed in item 5, wherein, In the height direction, the one or more end portions of the one or more yarn guides are disposed closer to the one side than the center of the pair of cell wall surfaces.

如請求項1至6中任一項所述的冷卻裝置，其中，上述冷卻單元具有：第1接觸部，設置於上述一對單元壁面中的一方的一部分，用於供上述絲線接觸；以及第2接觸部，設置於上述一對單元壁面中的另一方的一部分，且在上述長度方向上配置在與上述第1接觸部不同的位置，用於供上述絲線接觸。 The cooling device according to any one of claims 1 to 6, wherein, The above cooling unit has: The first contact portion is provided on a part of one of the pair of cell wall surfaces, and is used for contacting the wire; and The second contact portion is provided on a part of the other of the pair of cell wall surfaces, and is arranged at a position different from the first contact portion in the longitudinal direction, and is used for contacting the wire.

如請求項1至7中任一項所述的冷卻裝置，其中，具備以使上述管道內空間產生負壓的方式構成的負壓生成裝置。 The cooling device according to any one of claims 1 to 7, wherein, A negative pressure generating device configured to generate negative pressure in the duct inner space is provided.

如請求項8所述的冷卻裝置，其中，上述負壓生成裝置具有：葉輪，構成為能夠旋轉；馬達，構成為旋轉驅動上述葉輪；以及轉速變更部，構成為能夠變更上述馬達的旋轉軸的轉速。 The cooling device as claimed in claim 8, wherein, The above-mentioned negative pressure generating device has: an impeller configured to rotate; a motor configured to rotationally drive said impeller; and The rotational speed changing unit is configured to be able to change the rotational speed of the rotating shaft of the motor.

一種絲線加工機，其特徵在於，具備：請求項1至9中任一項所述的冷卻裝置；絲線變形施加裝置，構成為對上述絲線施加變形；以及絲線輸送裝置，構成為向上述冷卻裝置以及上述絲線變形施加裝置輸送上述絲線，用於使上述絲線行進，上述絲線加工機構成為，一邊使上述絲線行進一邊進行加工。 A silk thread processing machine is characterized in that it has: The cooling device described in any one of claims 1 to 9; A wire deformation applying device configured to apply deformation to the wire; and a wire feeding device configured to feed the wire to the cooling device and the wire deformation applying device for advancing the wire, The thread processing mechanism is configured to process the thread while advancing the thread.