JPH0665482U - Balloon plate - Google Patents

Abstract

(57) [Summary] [Purpose] To enhance the yarn cooling effect of the balloon plate. [Structure] An inverted V-shaped plate 9 having a reverse V-shaped cross section, and a plurality of finned blocks 10 closely attached to the back surface thereof.

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, 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]

 In order to achieve the above object, the balloon plate of the present invention comprises an inverted V-shaped plate having an inverted V-shaped cross section, and a plurality of finned blocks closely attached to the back surface thereof.

[0006]

[Work]

 In the balloon plate configured as described above, the heat of the traveling yarn is transferred to the inverted V-shaped plate, and the heat is further transferred to the finned blocks that are closely attached to the back surface of the inverted V-shaped plate. Emitted into the air from very large surfaces. Further, since the finned block has a size which is a fraction of that of the inverted V-shaped plate, it can be closely attached to the curved inverted V-shaped plate.

[0007]

【Example】

 The 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 already 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.

This balloon plate has a relatively long inverted V-shaped plate 9 having a reverse V-shaped cross section, and a plurality of relatively short-sized closely attached to the back surface of the inverted V-shaped plate 9. It comprises finned blocks 10 and a band 11 for fixing each finned block 10 to the back surface of the inverted V-shaped plate 9.

The inverted V-shaped plate 9 is the same as the standard balloon plate used in the conventional false twisting machine, drawing false twisting machine, and the like. That is, the cross section is an integrated body having an inverted V shape, and the central portion is curved downward over the entire length. Further, in the groove, about 5 convex portions 9a on each of the left and right sides are formed by pressing. As the material of the inverted V-shaped plate 9, stainless steel having good wear resistance is used, and aluminum having good heat conductivity is unsuitable because it has poor wear resistance. The length of the inverted V-shaped plate 9 may be shorter than that of the conventional standard balloon plate as long as the processing speed is the same.

The inverted V-shaped plate 9 is curved downward and the presence of the convex portion 9a prevents the yarn from jumping out during traveling while ballooning.

The finned block (heat sink) 10 includes a rib 10 a having a reverse Y-shaped cross section that is closely attached to the back surface of the inverted V-shaped plate 9 and a plurality of fins that project laterally from the rib 10 a. 10b, and the overall outer shape is a rectangular parallelepiped. Furthermore, a plurality of small ridges 10b 'are formed on the fin 10b by knurling. The material of the finned block 10 is made of aluminum, which has good thermal conductivity. The shapes of the ribs 10a and fins 10b are not limited to those shown in the drawings as long as the finned block 10 can be brought into close contact with the back surface of the inverted V-shaped plate 9 and heat can be efficiently dissipated. .

As described above, since the finned block 10 has good thermal conductivity, the heat of the inverted V-shaped plate 9 is quickly transmitted and the surface area is very large, so that the heat is quickly released into the air. be able to. Further, since the finned blocks 10 have a size of a fraction of a plurality arranged on the back surface of the inverted V-shaped plate 9, even if the lower groove of the rib 10a is linearly formed, it is curved. It can be closely attached to the inverted V-shaped plate 9.

The band 11 is made of steel or plastic and is bent into a substantially U-shape, and a hooking portion 11a is formed at each end thereof. Further, the two bent portions 11b are provided with a margin for mounting.

Since the structure of each member is as described above, a plurality of finned blocks 10 are straddled over the back surface of the inverted V-shaped plate 9 with a slight space on the back surface of the inverted V-shaped plate 9. It is possible to easily assemble the band 11 from one end by pulling each of the hooking parts 11a and hooking the band 11 to the end of the inverted V-shaped plate 9 without using a tool or the like. Therefore, it can be easily assembled to a false twisting machine, a draw false twisting machine, etc. equipped with a standard type balloon plate having an inverted V-shaped cross section, and the yarn cooling effect can be improved. Instead of using the band 11, the inverted V-shaped plate 9 and each finned block 10 may be integrated by a heat resistant adhesive or the like.

By the way, when the temperature of the first heater 3 is 210 ° and a nylon yarn of 70 denier is processed at a yarn speed of 800 m / min, the temperature of the yarn after cooling is 43 ° for a standard type balloon plate. It was 36 ° in the devised balloon plate. When the temperature of the first heater 3 is 210 ° and a nylon yarn of 150 denier is processed at a yarn speed of 700 m / min, the temperature of the yarn after cooling is 53 ° for a standard type balloon plate. It was 47 ° with the balloon plate of.

[0017]

[Effect of device]

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

That is, by attaching the finned block to the conventional standard type balloon plate, it is possible to easily assemble and further greatly improve the cooling effect of the yarn. 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 a front view of the balloon plate of the present invention.

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

[Explanation of symbols]

 9 Reverse V-shaped plate 10 Block with fin 10b Fin 11 band

Claims (1)

[Scope of utility model registration request] 1. An inverted V-shaped plate having a reverse V-shaped cross section,
A balloon plate consisting of a plurality of finned blocks attached to the back of the balloon plate.