KR102002726B1 - Nozzle fixing device for melt spinning system - Google Patents

Abstract

The present invention relates to a nozzle fixing apparatus for a melt spinning system, wherein the nozzle head is provided with a seating portion annularly downwardly recessed from the periphery of the mounting portion, and a coupling portion provided with a projection along the outer periphery of the seating portion and forming a second coupling hole And an annular fixed holder having an inner diameter and an outer diameter corresponding to an inner diameter of the holder assembly and an outer diameter of the engaging portion, wherein the holder assembly has an annular shape, And the fixing holder is provided with a second assembly hole corresponding to the first assembly hole and fastening the assembly bolt to fix the fixing holder on the upper side of the holder assembly, And a third coupling hole for coupling a fixing bolt upwardly interposed between the first coupling hole and the second coupling hole of the nozzle head to fix the nozzle to the nozzle head It is characterized in that the nozzle on the lower side of the head can be easily enjoyed in a more stable fixation.

Description

TECHNICAL FIELD [0001] The present invention relates to a nozzle fixing device for a melt spinning system,

The present invention relates to a nozzle fixing apparatus for a melt spinning system, and more particularly, to a nozzle fixing apparatus for a melt spinning system, more particularly, to a nozzle fixing apparatus for a melt spinning system in which a synthetic resin is melted and extruded to radiate filaments or staples, To the nozzle fixing device.

Generally, melt spinning is a spinning process in which a molten melt of a polymer chain material is extruded through a nozzle and cooled and solidified to form filaments. Polyamide-based, polyester-based, polyurethane, polyethylene, polypropylene fibers and the like are usually produced by melt spinning.

In a conventional melt spinning apparatus, a Korean Patent Registration No. 10- 0074287 discloses a melt spinning apparatus for spinning a plurality of synthetic filaments. The melt spinning apparatus includes a cylindrical nozzle axis forming pump shaft A block means having a cylindrical inner jacket, a block means located in said nozzle axis and having a plurality of melt pump tubes therein, a cylindrical means, received in the vicinity of the bottom of the nozzle axis and secured to the bottom of said block means A nozzle assembly comprising a nozzle head having a plurality of vertical holes and a nozzle aperture positioned in each of the apertures and having a connection hole communicating with one of the melt pump tubing, And a melt extrusion means for discharging the pressurized melt through the melt pump tube and the connection hole .

Korean Patent No. 10-0157408 discloses a spinning nozzle for producing filament fibers from a fluid material as an example of a spinning nozzle mounted on a melt spinning device. A nozzle head for receiving a flowable material; a support plate, which is mechanically stable and rigid, provided with a plurality of apertures which are received in a nozzle head and which have a through-hole structure; And a plurality of capillaries constituted by orifices are formed.

In a general description of the operation of a melt spinning apparatus, a polymer in a chip state is put into an extruder, melted and supplied as a spin beam. The gear pump of the spin beam measures the polymer melt at high temperature and high pressure, and supplies the melt to the filter through the distribution pipe. The melt filtered by the filter is discharged at high pressure into the air through the pores formed in the nozzle, cooled and solidified by the air stream, and is made into a filament or staple after the post-processing.

Korean Patent No. 10- 0074287 (December 24, 1993) Korean Patent No. 10 - 0157408 (Dec. 1, 1998) Korean Patent No. 10-0302319 (September 22, 2001) Korean Patent No. 10 - 2011 - 0079249 (July 7, 2011)

In the conventional melt spinning apparatus, the melt supplied from the extruder through the spin beam is distributed to each nozzle pack through the distribution pipe, and the melt introduced into the nozzle head is radiated to the outside of the nozzle through the filter.

In particular, in order to efficiently spin the melt through the pores formed in the nozzle to produce the filament, it is important to maintain a tight and firmly coupled state between the nozzle head and the nozzle.

In addition, since the filter incorporated in the nozzle head must be replaced or the nozzles must be reset depending on the kind of the polymer as the raw material of the melt, the coupling and separation between the nozzle head and the nozzle should be smoothly performed.

However, in the nozzle for the melt spinning system to which the conventional technique is applied, a plurality of bolts are fixed to the spin head under the nozzle head by fixing the nut with the nut.

Therefore, the nozzle fixing operation must be performed by a series of processes in which the nozzle is positioned on the lower side of the nozzle head, the nut is held on the upper side of the nozzle head with the tool, and the bolt is inserted and fastened from the lower side of the nozzle.

As a result, in order to fix or separate the nozzle to the nozzle head, at least two workers have to be put in a high-temperature working condition of about 300 ° C., and workability is remarkably low.

Particularly, even if a separate tool is used, it is difficult to grasp the nut stably during the bolting process, so that it is very difficult for the nut to be damaged or lost or to generate an equal torque to the plural bolts. Therefore, a gap is generated between the nozzle head and the nozzle Or cause thermal deformation. This not only significantly reduces the radiation quality of the melt such as refraction and leakage, but also shortens the lifetime of the entire nozzle pack.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art,

A nozzle fixing apparatus for a melt spinning system for fixing a nozzle to a lower side of a nozzle head for coupling a mounting portion to a spin beam,

Wherein the nozzle head is provided with a seating portion annularly downwardly recessed in the periphery of the mounting portion and an engaging portion provided with a projection along an outer periphery of the seating portion and forming a second engaging hole;

A holder assembly provided in an annular shape in contact with the inner peripheral surface of the seat portion,

And an annular fixed holder having an inner diameter and an outer diameter corresponding to an inner diameter of the holder assembly and an outer diameter of the engaging portion;

A first assembly hole is formed on the upper surface of the holder assembly,

The fixing holder may include a second assembly hole corresponding to the first assembly hole and for fastening the assembly bolt to fix the fixing holder on the upper side of the holder assembly,

The fixing holder includes a third coupling hole for coupling a fixing bolt interposed upward from the first coupling hole of the nozzle to the second coupling hole, thereby fixing the nozzle to the nozzle head.

The third engaging hole is provided to form a polygonal inner peripheral wall having an inner diameter larger than that of the second engaging hole,

The lower end of the fixing bolt is fastened to the inside of the third coupling hole through a fixing fastening means having a screw hole in the core portion and a polygonal shape coupled to the third coupling hole.

In addition, the holder assembly may have a first spacing portion, a second holder portion may have a second spacing portion,

The first and second spacing portions are formed in such a manner that the left and right annular bodies are separated from each other with reference to a line connecting an arbitrary point on the outer circumferential surface at a central point of the annular body,

The first spacing part of the holder assembly and the second spacing part of the fixing holder are arranged at different positions in the up and down directions.

Therefore, it is possible to achieve the object that the nozzle can be stably fixed to the lower side of the nozzle head.

The present invention is characterized in that a nozzle assembly mounted on a spin beam of a melt spinning system is equipped with a holder assembly and a fixed holder to which a fixed fastener is bound, thereby facilitating the joining and separating operation between the nozzle head and the nozzle .

Accordingly, the present invention can eliminate the possibility of the loss and damage of the nut as in the prior art, and can reduce the number of workers injected into the nozzle fixing operation, thereby significantly improving workability.

Particularly, since the present invention can stabilize bolting with uniform torque throughout the plurality of fixing bolts fixing the nozzle to the nozzle head, it is possible to obtain a solid coupling state.

Therefore, it is possible to expect such effects as eliminating various problems such as occurrence of a gap between the nozzle head and the nozzle, heat deformation, leakage, and shortening the life span, and ultimately improving the radiation quality, as in the prior art.

1 is a perspective view of a nozzle fixing apparatus for a melt spinning system according to the present invention.
2 is an exploded perspective view of a nozzle fixing apparatus for a melt spinning system according to the present invention.
3 is a sectional view of a nozzle fixing apparatus for a melt spinning system according to the present invention.
4 is a plan view (a) of the holder assembly of the present invention and a plan view and a front view (b) showing a state in which the assembly bolts are fastened.
Fig. 5 is a plan view and a front view (b) of the fixture holder according to the present invention in a plan view (a) and a state in which the fastening means is interposed.
6 to 7 are diagrams showing the state of use of the nozzle fixing apparatus for a melt spinning system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure and operation of a nozzle fixing apparatus for a melt spinning system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of parts that can be easily implemented by those skilled in the art may be omitted.

FIG. 1 is a perspective view of a nozzle fixing apparatus for a melt spinning system according to the present invention, FIG. 2 is an exploded perspective view of a nozzle fixing apparatus for a melt spinning system according to the present invention, and FIG. (A) of the present invention and a plan view and a front view (b) showing a state in which the assembly bolts are fastened, Fig. 5 is a plan view (a) 6 and 7 show a state of use of the nozzle fixing apparatus for a melt spinning system according to the present invention.

The nozzle fixing apparatus for a melt spinning system to which the technique of the present invention is applied is characterized in that a nozzle 200 is disposed below a nozzle head 100 mounted on a spin beam 10 in a melt spinning system in which a synthetic resin is used to spin up filaments or staples It is to be noted that the present invention relates to a nozzle fixing device having a series of constitutions so as to be easily and stably fixed.

A nozzle fixing apparatus for a melt spinning system according to the present invention for fixing a nozzle includes a nozzle fixing unit for fixing a nozzle 200 to a lower side of a nozzle head 100 coupling a mounting unit 110 to a spin beam 10 A holder assembly 300 together with the nozzle head 100, and a fixing holder 400, which are specifically described below.

The nozzle pack for spinning the melt in the melt spinning system comprises a nozzle head 100 mounted on the case of the spin beam 10 to supply the melt to the nozzle 200 and a nozzle head 100 coupled to the nozzle head 100 for spinning the melt into filaments And other filters, pushers, and the like.

The nozzle head 100 is provided with a mounting portion 110 to fix the upper end to the case of the spin beam 10. In the present invention, the nozzle assembly 100 is provided with the holder assembly 300 and the fixture holder 400 so that the fixing operation of the nozzle 200 is smoothly performed.

The nozzle head 100 is provided with a seating portion 120 which is annularly downwardly recessed from the periphery of a mounting portion 110 formed at a center portion on the upper side and a projection portion provided along the outer periphery of the seating portion 120, (Not shown).

The seating portion 120 is recessed to a predetermined depth between the mounting portion 110 and the engaging portion 130. This is to stably seat the following holder assembly 300 on the seating part 120 to prevent it from coming off.

A second coupling hole 131 is formed in the coupling part 130 to couple the fixing bolt 220 to the nozzle head 100 in order to mount the nozzle 200 thereon. The formation of the protrusion on the coupling part 130 realizes a horizontal state of the fixing holder 400 fixed on the upper side of the holder assembly 300. The height of the protrusion of the engaging part 130 is lower than the height of the holder assembly 300 which is seated on the seating part 120 considering the height of the predetermined airtight means provided between the fixed holder 400 and the engaging part 130 .

The second coupling hole 131 formed in the coupling part 130 is formed coaxially with the first coupling hole 210 formed in the nozzle 200. A predetermined screw is formed on the upper inner circumferential surface of the second coupling hole 131 so that the lower portion of the fixing bolt 220 is engaged.

The holder assembly 300 is provided in an annular shape in contact with the inner circumferential surface of the seating part 120 formed in the nozzle head 100 to fix the fixing holder 400 to the nozzle head 100.

The holder assembly 300 is mounted on the seating part 120 before the nozzle head 100 is mounted on the spin beam 10. Since the holder assembly 300 is supported in the seating part 120 by the load of the nozzle 200 transmitted through the following fixing holder 400, a separate fixing means can be eliminated. However, it may be fixed to the seat part 120 by bolting or gluing if necessary.

As shown in FIG. 4, a plurality of first assembly holes 310 are formed on the upper surface of the holder assembly 300 by being recessed to a predetermined depth. The first assembly hole 310 is provided coaxially with the second assembly hole 410 formed in the fixture holder 400 to be described later and the fixture holder 400 is fixed to the holder assembly 300 by assembling the assembly bolt 320. [ .

In addition, the holder assembly 300 is formed with a first spacing part 330 which divides the left and right annular bodies from each other with reference to a line connecting an arbitrary point on the outer circumference at a central point of the annular body.

The present invention constitutes a nozzle fixing device for a melt spinning system that emits a high temperature melt that approaches a temperature of about 300 DEG C, and it is impossible to exclude the possibility that thermal deformation is caused in the holder assembly 300 which is a metal by high temperature. Accordingly, at least one or more first spacing parts 330 are formed in the holder assembly 300 to accommodate the stresses due to thermal expansion or heat shrinkage.

3, the fixed holder 400 is formed in an annular shape having an inner diameter and an outer diameter corresponding to the inner diameter of the holder assembly 300 and the outer diameter of the coupling part 130, 200 to be fixed to the fixing bolts 220.

The fixed holder 400 is fixed to the upper side of the holder assembly 300 before the nozzle 200 is coupled to the nozzle head 100.

5, the fixed holder 400 includes a second assembly hole 410 for fastening the assembly bolts 320 corresponding to the first assembly holes 310 of the holder assembly 300, And the fixing holder 400 is fixed on the upper side of the holder assembly 300.

A third coupling hole 420 for coupling a fixing bolt 220 upwardly interposed in the first coupling hole 210 of the nozzle 200 to the second coupling hole 131 is formed in the fixed holder 400 So as to fix the nozzle 200 back to the nozzle head 100.

The third engagement hole 420 is formed to have a polygonal inner peripheral wall having an inner diameter larger than that of the second engagement hole 131 and fixed to the inner side of the third engagement hole 420 ).

The fixing member 430 is formed in a polygonal shape bound to the third coupling hole 420 and has a screw hole 431 in the core.

The fixing bolt 220 upwardly interposed in the first coupling hole 210 of the nozzle 200 to the second coupling hole 131 of the nozzle head 100 is inserted into the third coupling hole 420 of the fixed holder 400, The nozzle 200 is fixed to the nozzle head 100 by finally fastening the lower end thereof to the screw hole 431 of the fixed fastening means 430 interposed in the nozzle fixing part 430. [

The fixed fastening means 430 is provided so as to be able to maintain a fixed position in the third fitting hole 420 of the fixed holder 400 by a polygonal shape even if the fixing bolts 220 are fastened.

The fixed holder 400 is formed with a second spacing portion 440 that divides the left and right annular members into a spaced apart relation with respect to a line connecting an arbitrary point on the outer circumferential surface at the central point of the annular body.

Accordingly, at least one second spacing part 440 is formed in the fixed holder 400 so as to eliminate the possibility that the fixing holder 400, which is a metallic material, may be thermally deformed due to the high temperature caused by the melt, so that stress due to thermal expansion or heat shrinkage .

The first spacing part 330 of the holder assembly 300 and the second spacing part 440 of the fixing holder 400 are provided at different positions on the upper and lower sides to eliminate interference between them, .

Hereinafter, a general use state of the nozzle fixing apparatus for a melt spinning system to which the technique of the present invention having the above-described structure is applied will be described. It is to be understood that the present invention is not limited to the following embodiments, and various modifications may be made without departing from the scope of the present invention. .

As shown in FIG. 7, a nozzle pack including a nozzle head 100 and a nozzle 200 is mounted on a spin beam 10 supplied with a melt from an extruder of a melt spinning system.

The nozzle head 100 is mounted by coupling the upper mount 110 to the case of the spin beam 10. The nozzle 200 is coupled to the lower side of the nozzle head 100 so that the supplied melt can be radiated.

The holder assembly 300 is mounted on the seating portion 120 of the nozzle head 100 and the holder assembly 300 is mounted on the holder assembly 100 before the nozzle 200 is mounted and fixed on the nozzle head 100 300, the fixture holder 400 is fixed, and then the nozzle 200 is fixed.

6, a fixing holder 400 is provided on the holder assembly 300 mounted on the seating portion 120 of the nozzle head 100 and a second assembly (not shown) And fastened and fixed to the hole 410 and the first assembly hole 310.

In addition, a fixing member 430 is interposed in the third coupling hole 420 formed in the fixed holder 400. A predetermined hermetic means is interposed between the engaging portion 130 of the nozzle head 100 and the fixed holder 400 below the fixed fastening means 430.

The operator enters the fixing operation of the nozzle 200 in a state in which the holder assembly 300 and the fixing holder 400 are mounted on the nozzle head 100 mounted on the spin beam 10, The fixing bolts 220 are fastened in a state in which the first coupling holes 210 and the second coupling holes 131 of the nozzle head 100 correspond to each other.

The fixing bolt 220 is coupled while passing through the first coupling hole 210 and the second coupling hole 131. When the lower end of the fixing bolt 220 is fastened to the fixed fastening means 430, It is possible to omit the process of grasping the nut by another worker as in the prior art.

That is, since the fixed fastening means 430 is stably supported under the same conditions in the plurality of third coupling holes 420, the plurality of fixing bolts 220 are fastened with equal torque to fix the nozzle 200 have.

The nozzle fixing apparatus for a melt spinning system according to the present invention as described above is characterized in that a holder assembly 300 and a fixing member 430 are fixed to a nozzle head 100 mounted on a spin beam 10 of a melt spinning system. A series of configurations capable of joining and separating the nozzle 200 in a state where the holder 400 is fixed is mounted.

Therefore, in the process of bolting the nozzle 200 to the nozzle head 100 as in the prior art, it is necessary for the operator to grasp the nut so as to correspond to the bolt one by one, Even if a wrench is used, it is difficult to derive an even torque according to the gripping force of the nut.

Accordingly, the present invention can reduce manpower input to the nozzle 200 fixing operation, significantly improve workability, and stabilize bolting with uniform torque throughout the plurality of fixing bolts 220.

Further, as compared with the simple bolting between the nozzle head 100 and the nozzle 200 according to the related art, the present invention can provide a fixed holder 400 and a holder assembly 300, .

Therefore, the present invention eliminates various problems such as generation of a gap between the nozzle head 100 and the nozzle 200, thermal deformation, leakage, and shortened life span as in the prior art, and ultimately, It is expected that the possibility of industrial use will be very great.

10: spin beam 100: nozzle head
110: mounting part 120:
130: coupling part 131: second coupling hole
200: nozzle 210: first engagement hole
220: Fixing bolt 300: Holder assembly
310: first assembly hole 320: assembly bolt
330: first spacing part 400: fixed holder
410: second assembly hole 420: third connection hole
430: Fixing means 431: Screw hole
440: second spacing

Claims (3)

A nozzle fixing apparatus for a melt spinning system for fixing a nozzle to a lower side of a nozzle head for coupling a mounting portion to a spin beam,
Wherein the nozzle head is provided with a seating portion annularly downwardly recessed in the periphery of the mounting portion and an engaging portion provided with a projection along an outer periphery of the seating portion and forming a second engaging hole;
A holder assembly provided in an annular shape in contact with the inner peripheral surface of the seat portion,
And an annular fixed holder having an inner diameter and an outer diameter corresponding to an inner diameter of the holder assembly and an outer diameter of the engaging portion;
A first assembly hole is formed on the upper surface of the holder assembly,
The fixing holder may include a second assembly hole corresponding to the first assembly hole and for fastening the assembly bolt to fix the fixing holder on the upper side of the holder assembly,
Wherein the fixing holder has a third engaging hole for engaging a fixing bolt upwardly interposed between the first engaging hole of the nozzle and the second engaging hole so as to fix the nozzle to the nozzle head. Nozzle holding device. The method according to claim 1,
The third engaging hole is provided so as to form a polygonal inner peripheral wall having an inner diameter larger than that of the second engaging hole,
And a lower end of the fixing bolt is fastened to the inner side of the third coupling hole with a polygonal shape bound to the third coupling hole and through a fixing means having a screw hole in the core portion. Nozzle holding device. The method according to claim 1,
A first spacing portion is formed in the holder assembly, a second spacing portion is formed in the fixing holder,
The first and second spacing portions are formed in such a manner that the left and right annular bodies are separated from each other with reference to a line connecting an arbitrary point on the outer circumferential surface at a central point of the annular body,
Wherein the first spacing part of the holder assembly and the second spacing part of the fixing holder are provided at different positions in the upper and lower directions.

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