KR200330268Y1 - A Foam Device for Dualindustrial Structure of Olefins Foam - Google Patents

Abstract

The present invention is to ensure that the foam thickness of the foamed olefin having a double structure is always uniform, and relates to a foaming apparatus of the foamed olefin having a double structure so that the foaming operation of the foamed olefin can be easily and continuously made continuously.

The technical configuration is supplied to both sides of the foam zone 150 so that the foam and the non-foamed olefin sheets 130, 130 'fed through the first and second extruders 110 and 120 are laminated and conveyed. 160 and 160 'are installed, and a plurality of upper and lower rollers 170 and 170b are installed in the horizontal direction between the supply rollers 160' and 160 ', and the plurality of upper rollers 170 are installed. The upper roller 170 at the position where the foam olefin sheet 130 is foamed is spoken by the shaft 170b, and the upper roller 170 has the ball screw 190 and the shaft 170b integrally ascending and descending. Speaking with the drive motor 200, the drive motor 200 is a roller drive unit 210 is installed to drive the controller 220 is located above the foam zone 150, while the foam olefin sheet 130 is The steam heating unit 240 is installed on the periphery of the foam zone 150 to be foamed.

Description

Foaming device for foam olefin having a dual structure {A Foam Device for Dualindustrial Structure of Olefins Foam}

The present invention allows the foamed olefin sheet of polypropylene and polyethylene and a non-foamed sheet to which the foaming agent is added is continuously extrusion-laminated so that the upper olefin sheet can be easily and easily foamed to produce a foamed olefin having a double structure. It relates to a foaming device of a foamed olefin having a dual structure to ensure that the foam thickness of the foamed olefin having a uniform always made, and that the foaming operation of the foamed olefin can be made easily and easily continuously.

In general, multilayer polyolefin foam sheet manufacturing apparatus are known which comprise at least one polyolefin foam layer and at least one polyolefin non-foamed layer.

That is, according to Korean Patent Laid-Open Publication No. 2001-0050029, an extrusion die having two extrusion openings parallel to each other to one end of a first extruder 1 and a second extruder 2 to which a material for forming a polyolefin foam layer is supplied ( 3) is installed so that the two polyolefin foam sheets 4 are coextruded and supplied, and a vacuum chamber 8, a cutter 30, and a guide roller 32 are installed in front of the extrusion die 3, and the polyolefin The foam sheet 4 is foamed and cut and transported to a predetermined size, and the non-foamed gas barrier resin sheet 36 positioned between the two multilayer polyolefin foam sheets 4 is supplied to the tow roller 11 through a guide roll. The polyolefin foam sheet 4 is supplied to the traction roller 11 above and below the non-foamed gas barrier resin sheet 36, and is bonded to the traction roller 11 to produce a multilayer polyolefin foam sheet. The.

Thus, upon supply of the material for forming the polyolefin foam layer through the first extruder 1 and the second extruder 2, two polyolefin foam sheets in an extrusion die 3 having two extrusion openings parallel to each other at one end thereof. (4) is coextruded, and the two polyolefin foam sheets (4) are foamed in the vacuum chamber (8), each cut in the cutter (30), and then supplied to the pulling roller (11), wherein the 2 Between the two polyolefin foam sheets 4, a non-foamed gas barrier resin sheet 36 in a roll is supplied to the tow roller 11 through the guide roll, and thus, between the upper and lower polyolefin foam sheets 4 by the pressing force of the tow roller. The non-foamed gas barrier resin sheet 36 is pressed and bonded to the multilayer polyolefin foam sheet.

However, in the multilayer polyolefin foam sheet as described above, since the polyolefin sheet extruded from the extrusion die is instantaneously foamed in the vacuum chamber 8 connected to the extrusion die, the polyolefin foam sheet forms a uniform foam layer. Not only is it difficult to do, but also there is a big disadvantage that the foam thickness of the polyolefin foam sheet is also uneven.

In addition, a separate high pressure vacuum chamber, a preheating and a temperature control device, etc. are required for the production of the polyolefin foam sheet, and the production of the olefin foam sheet has been complicated.

The present invention has been made in order to improve the conventional problems as described above, its purpose is to ensure that the foam thickness of the foam olefin having a dual structure is always uniform, and the foaming operation of the foam olefin is continuously easy and easy It is possible to make, of course, according to the foaming device of the foamed olefin having a dual structure that can be easily absorbed by using the non-foamed sheet and the polyolefin foam layer and light impact sound and heavy impact sound generated in the apartment house To provide.

1 is a schematic configuration diagram of a conventional multilayer polyolefin foam sheet production apparatus.

2 is a schematic configuration diagram of a foaming apparatus of a foamed olefin having a dual structure according to the present invention.

Figure 3 is a front cross-sectional view of the foam zone for foam olefin sheet foam of the present invention.

Figure 4 is a front cross-sectional view of the foam zone for foam olefin sheet foam according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110 ... First Extruder 120 ... Extruder

130,130 '... foam and unfoamed olefin sheet

140 ... press roller 150 ... Zone

160,160 '... supply roller 170a ... upper roller

170b ... lower roller 180 ... axis

190 ... ball screw 200 ... drive motor

210 ... roller drive 220 ... controller

230a ... steam inlet 230b ... steam exit

240 ... steam heating

The present invention as a technical means for achieving the above object, in the foaming apparatus of the foam olefin,

A feed roller installed at both sides of the foam zone (Zone) so that the foam and the non-foamed olefin sheet supplied through the first and second extruders are laminated and conveyed through the compression roller;

Upper and lower rollers each provided in a horizontal direction between the feed rollers so as to guide the foam and the non-foamed olefin sheet supplied through the feed rollers;

Among the plurality of upper rollers, the upper roller at the position where the foam olefin sheet is foamed is extended to the shaft, and the shaft is extended to the ball screw and the driving motor so that the upper roller is raised and lowered integrally, and the driving motor is located above the foam zone. A roller driver installed to drive the controller to be positioned; And

Provides a foaming apparatus of the foam olefin having a dual structure comprising a; a steam heating unit is formed in the foam inlet and the steam outlet on one side and the other side so that the foam olefin sheet is foamed and installed around the foam zone By

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a schematic configuration diagram of a foaming apparatus of a foam olefin having a double structure according to the present invention, Figure 3 is a front cross-sectional structural view of the foam zone for foam olefin sheet foam of the present invention, the first and second extruders 110 Foam rollers and non-foamed olefin sheets 130 and 130 ', which are respectively supplied through the 120, are supplied to the foam rollers 150 and the both sides of the feed roller 160 so as to be laminated and transported through the compression roller 140. 160 'is installed between the feed rollers 160' and 160 'to guide the foam and the non-foamed olefin sheets 130 and 130' supplied through the feed rollers 160 and 160 '. A plurality of upper and lower rollers 170a and 170b are installed in the horizontal direction.

In addition, the upper roller 170a at the position where the foam olefin sheet 130 is foamed among the plurality of upper rollers 170a is extended to the shaft 180, and the upper roller 170a is integrally raised and lowered to the shaft. 180 is spoken with the ball screw 190 and the drive motor 200, the drive motor 200 is a roller drive unit 210 is installed to drive the controller 220 is located above the foam zone 150. .

In addition, the foam olefin sheet 130 is formed so that the steam heating unit 240 is formed on the periphery of the foam zone 150, the steam inlet 230a and the steam outlet 230b is formed on the periphery of the foam zone 150. .

Reference numeral 260 in the figure indicates a pressure or height sensor installed inside the foam zone 150.

Referring to the operation and effects of the present invention made of such a configuration as follows.

2 and 3, the foamed and non-foamed olefin sheets 130, 130 'are extruded through the first and second extruders 110 and 120, respectively, and the foamed and non-foamed The olefin sheets 130 and 130 ′ are integrally compressed and stacked by the compression roller 140 to be transferred to the foam zone 150.

After the foam and the non-foamed olefin sheets 130 and 130 'are laminated to each other by the rotational driving of the feed rollers 160 and 160' installed at both sides, the foam zone 150 is supplied again. The rollers 160 and 160 ′ are guided and transported into the foaming zone 150 through the upper and lower rollers 170a and 170b installed in the horizontal direction, and the plurality of upper rollers 170a ), The upper roller 170a at the position where the foam olefin sheet is foamed is integrally communicated through the shaft 180.

The plurality of upper rollers 170a are coupled to the ball screw 190 in which the shaft 180 is vertically inserted therein, and the ball screw 190 is extended to the driving motor 200, thereby being a roller driving unit 210. The driving motor 200 and the ball screw 190 are driven by the adjustment of the controller 220, and the upper and lower rollers 170a are moved up and down, thereby foaming the foamed olefin sheet while passing through the foam zone 150. The foam height of 130 can be adjusted uniformly.

On the other hand, the steam heating unit 210 is formed on the periphery of the foam zone 150 so that the foam olefin sheet 130 is foamed, so that one steam inlet 230a of the steam heating unit 240 is opened. By supplying superheated steam (steam) so that the temperature inside the foaming zone is about 150 ~ 250 ℃ through, and forming the steam outlet 230b for discharging the cooling steam on the other side of the steam heating unit 210, The foam olefin sheet 130 passing through the inside may be foamed to a uniform foam thickness.

On the other hand, Figure 4 is a front cross-sectional structural view of the foam zone for foam olefin sheet foam according to another embodiment of the present invention, the heater 250 around the foam zone 150 so that the foam olefin sheet 130 is foamed Can be installed.

According to the foaming apparatus of the foam olefin having a double structure of the present invention as described above, the foam thickness of the foam olefin having a dual structure is always made uniform, the foaming operation of the foam olefin can be easily and easily made continuously. Of course, there is an excellent effect that can be easily absorbed by using the non-foamed sheet and the polyolefin foam layer and light impact sound and heavy impact sound generated in the apartment accordingly.

Although the present invention has been illustrated and described in connection with specific embodiments, it should be understood that the present invention may be variously modified and changed without departing from the spirit or the scope of the present invention provided by the following claims for utility model registration. Those skilled in the art will want to know easily.

Claims (2)

In the foaming apparatus of the foam olefin, Foams and non-foamed olefin sheets 130 and 130 ′ respectively supplied through the first and second extruders 110 and 120 are installed on both sides of the foam zone 150 so as to be laminated and transported through the compression roller 140. Supply rollers 160 and 160 '; The upper side and a plurality of horizontally installed between the feed rollers 160, 160 'to guide the foam and the non-foamed olefin sheets 130, 130' supplied through the feed rollers 160, 9160 '. Lower rollers 170a and 170b; Among the plurality of upper rollers 170a, the upper roller 170a at the position where the foam olefin sheet 130 is foamed is extended to the shaft 180, and the upper roller 170a is raised and lowered integrally to the shaft 180. The ball screw 190 and the driving motor 200 is vertically admitted, and the driving motor 200 is installed to drive the controller 220 located in the foam zone 150 above the roller driving unit 210. ; And A steam heating part 240 formed at one side and the other side of the foam zone olefin sheet 130 to expand the steam inlet 230a and the steam outlet 230b and installed around the foam zone 150; Foaming apparatus of the foam olefin having a dual structure, characterized in that comprises a. The foaming apparatus of claim 1, wherein a heater (250) is installed at the periphery of the foam zone (150) so that the foam olefin sheet (130) is foamed.