JPH0721781U - Balloon plate - Google Patents

Abstract

(57) [Summary] [Purpose] To enhance the cooling effect of the balloon plate thread. [Structure] An inverted V-shaped guide groove 43, a coolant passage 44, and a fin 42 are provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a balloon plate which is provided between a first heater and a twister in a false twisting machine, a drawing false twisting machine and the like, and which suppresses ballooning of a yarn passing through the first heater and cools it.

[0002]

[Prior art]

 Balloon plates made of stainless steel having an inverted V-shaped cross section are used in conventional false twisting machines, drawing false twisting machines, and the like.

[0003]

[Problems to be solved by the device]

 The balloon plate described above does not have a sufficient effect of cooling the yarn, and if the processing speed is increased, the balloon plate must be long.

The present invention aims to provide a balloon plate having a high yarn cooling effect.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the balloon plate of the present invention has an inverted V-shaped guide groove, a cooling liquid passage, and a fin.

[0006]

[Work]

 In the balloon plate configured as described above, the heat of the running yarn is transferred from the guide groove to the main body and from the main body to the cooling liquid and fins in the cooling liquid passage. Then, the heated coolant moves to the outside, and the heat transferred to the fins is released into the air from its wide surface.

[0007]

EXAMPLE A balloon plate of the present invention will be described with reference to FIGS.

This balloon plate is used for the balloon plate 4 in the draw false twisting machine shown in FIG. 3, for example. This draw false twisting machine includes a creel stand 1 on which a yarn supply package 2 in which partially drawn yarns are wound, a first heater 3, a balloon plate 4, a nip twister 5, and a second heater. 6 and a take-up winder 7 forming a package 8 for winding the processed yarn, which is well known (see Japanese Patent Laid-Open No. 62-15341). In this drawing false twisting machine, the yarn Y is false twisted by the nip twister 5 and spreads to the first heater 3. Then, the yarn Y is plasticized and is advanced to the balloon plate 4 to fix the twisted state. Then, when it passes through the nip twister 5, it is untwisted, and crimps are generated in each filament, which makes it bulky. After that, the process proceeds to the second heater 6, the torque is reduced, and the wound package 8 is wound up. Meanwhile, the yarn Y is drawn about 1.2 times for the polyamide yarn and about 1.6 times for the polyester yarn.

The balloon plate 4 is composed of a balloon plate body 41 having an inverted V-shaped cross section, and a plurality of fins 42 protruding from the balloon plate body 41, and a lower portion of the balloon plate body 41 has an inverted V shape. The guide groove 43 has a rectangular shape, and a coolant passage 44 is formed at the center of the balloon plate body 41 so as to penetrate therethrough in the lengthwise direction.

The balloon plate body 41 and each fin 42, including the cooling liquid passage 44, are made of aluminum or the like having good heat conductivity as a raw material, and are manufactured by an extrusion process in which the surface is precisely finished. The balloon plate main body 41 has a central portion curved downward over the entire length in order to prevent the yarn from jumping out during traveling for ballooning. The length of the balloon plate main body 41 may be shorter than that of the conventional standard balloon plate, for example, 1.6 m, if the processing speed is the same. The portion of the guide groove 43 is subjected to surface treatment such as hard alumite treatment or bombardment in order to improve abrasion resistance to the yarn. Further, at both ends of the cooling liquid passage 44, tapping for attaching the nipple 16 is performed.

Each fin 42 projects laterally from the balloon plate body 41, and each fin 42 has a plurality of small ridges formed by knurling. Since the surface area of the ridged fins 42 is very large, the heat transferred from the running yarn to the balloon plate body 41 can be quickly released into the air.

The nipple 16 is attached via a guide 13, a washer 14 and a hexagonal screw 15 to a female screw formed at each end of the cooling liquid passage 44. The guide 13 is attached so that the lower edge of the guide 13 projects slightly below the bottom of the guide groove 43 in order to protect both ends of the guide groove 43, which are heavily worn. Then, one end of each of the cooling liquid supply hose 9 and the hot liquid discharge hose 10 is attached to each nipple 16, and the other end of each of the cooling liquid supply hose 9 and the hot liquid discharge hose 10 is attached to the cooling device 12. Connected to the pump 11.

Therefore, the cooling liquid passage 44, the cooling liquid supply hose 9, the hot liquid discharging hose 10, the pump 11, and the cooling device 12 constitute a closed circuit cooling liquid circulating device, and the balloon plate 4 is It is forcibly cooled by the circulation of the cooling liquid by the pump 11. By circulating the cooling liquid in this way, not only can the guide groove 43 of the balloon plate 4 be controlled to a temperature at which dew condensation does not occur in accordance with the ambient temperature and humidity, but also the cooling liquid can be used semipermanently. , Economical. As the cooling liquid, water or a coolant that does not generate bacteria is used.

The balloon plate 4 of the present invention having the fin 42 and the cooling liquid passage 44 lowers the surface temperature of the guide groove 43 by about 20 ° C. as compared with the conventional standard type balloon plate having no fin or cooling liquid passage. You can By the way, in the case where the cooling liquid passage 44 is not provided and only the fin 42 is provided, the surface temperature of the guide groove 43 is lowered by about 10 ° C. as compared with the standard type balloon plate.

[0015]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

That is, since the cooling liquid is forcibly cooled and the heat is efficiently released into the air from the fins, the yarn cooling effect can be greatly enhanced. Therefore, it is possible to shorten the length of the balloon plate and increase the processing speed.

[Brief description of drawings]

FIG. 1 is a perspective view of a balloon plate of the present invention.

FIG. 2 is an enlarged perspective view of an end portion of the balloon plate of the present invention.

FIG. 3 is a side view of a drawing false twisting machine.

[Explanation of Codes] 4 Balloon Plate 41 Balloon Plate Main Body 42 Fin 43 Guide Groove 44 Cooling Liquid Passage 9 Cooling Liquid Supply Hose 10 Hot Liquid Discharging Hose 11 Pump 12 Cooling Device

Claims (1)

[Scope of utility model registration request] 1. A balloon plate having an inverted V-shaped guide groove, a coolant passage, and a fin.