KR200330269Y1 - 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 that the foam and the non-foamed olefin sheets 130 and 130 'supplied through the first and second extruders 110 and 120, respectively, are pressed and stacked to form a sheet conveying passage ( A heater heating part 230 is installed above and below the sheet foaming die 170 on the sheet conveying passage 160a side so as to heat the foam olefin sheet 130 'supplied to 160a at a constant temperature, and the sheet conveying passage 160a is provided. At one end of the), a height of the passage is formed to have a predetermined height (t) and a sheet foam passageway 160b is formed to foam the laminated olefin sheet 130, respectively, and the foam olefin sheet 130 is foamed. On both sides of the sheet foam die 170, the ball screw 190, which is raised and lowered integrally with the sheet foam die 170 to adjust the height of the sheet foam passage 160b through the guide bar 180, the driving motor 200 Speech), the drive motor 200 is a foam zone The die driver 210 is installed so as to drive the controller 220 positioned above.

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 in one end of the first extruder 3 and the second extruder 5 to which the polyolefin foam layer forming material is supplied ( 7) is installed so that the two polyolefin foam sheets 15 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 7 so that the polyolefin The foam sheet 15 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 15 is supplied to the tow roller 11 through a guide roll. The polyolefin foam sheet 15 is supplied to the traction roller 11 above and below the non-foamed gas barrier resin sheet 36, and is bonded by pressure to form a multilayer polyolefin foam sheet. It is broken.

Thus, upon supplying the material for forming the polyolefin foam layer through the first extruder 3 and the second extruder 5, two polyolefin foam sheets in an extrusion die 7 having two extrusion openings parallel to each other at one end thereof. (15) is coextruded, and the two polyolefin foam sheets (15) are foamed in the vacuum chamber (8), each cut in the cutter (30), and then supplied to the pulling roller (11), wherein Between the two polyolefin foam sheets 15, a non-foamed gas barrier resin sheet 36 in a roll is supplied to the traction roller 11 through the guide roll, and thus, between the upper and lower polyolefin foam sheets 15 by the pressing force of the traction 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

160a ... sheet feed passage 160b ... sheet foam passage

170 ... sheet foam die 180 ... axes

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

210 ... die drive 220 ... controller

230 ... heater heater 240 ... steam heater

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

A sheet conveying passage formed at the inlet side of the foam zone so that the foam and the non-foamed olefin sheet supplied through the first and second extruders, respectively, are laminated and conveyed through the pressing roller, and one end of the sheet conveying passage is provided with a passage. Sheet foaming dies each having a predetermined height (t) to be formed so that the foam foam olefin sheets stacked on the non-foamed olefin sheet are foamed;

A ball screw which is raised and lowered integrally with the sheet foam die is vertically installed so as to adjust the height of the sheet foam passage through guide bars on both sides of the sheet foam die in which the foam olefin sheet is foamed, and the ball screw is driven with the driving motor. The driving motor may include a die driving unit installed to drive the controller located above the foam zone; And

It is provided by the foaming apparatus of the foamed olefin having a dual structure, characterized in that it comprises a; heater heater installed on the sheet conveying passage side sheet foam die upper and lower sides so that the foam olefin sheet is heated and foamed.

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 and non-foamed olefin sheets 130 and 130 ', which are respectively supplied through the 120, are compressed and laminated through the compacting roller 140, and then transported, and the sheet conveying path of the foam zone 150 (Zone) is transported. The heater heating part 230 is installed on the sheet foam die 170 above and below the sheet conveying passage 160a so as to heat the foamed olefin sheet 130 'on the upper side of the non-foamed olefin sheet 130 supplied to 160a. do.

In addition, at one end of the sheet conveying passage 160a, the height of the passage is formed to have a predetermined height (t) so that the foam olefin sheet 130 laminated on the non-foamed olefin sheet 130 'is foamed so as to foam. Each of the sheet foam dies 160b may be formed, and sheet foam dies may be adjusted to adjust heights of the sheet foam passages 160b through guide bars 180 on both sides of the sheet foam die 170 on which the foam olefin sheet 130 is foamed. The ball screw 190, which is raised and lowered integrally with the 170, is vertically placed, and the ball screw 190 is spoken with the driving motor 200, and the driving motor 200 is located at the upper side of the foam zone. The die driver 210 is configured to be driven to 220.

In the drawing, reference numeral 250 denotes a pressure or height sensor installed above the foaming die 170 of the foaming 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.

When the foam and the non-foamed olefin sheets 130 and 130 'are supplied to the sheet conveying passage 160a at the inlet side of the foam zone 150 (Zone), the foam olefin above the non-foamed olefin sheet 130 is provided. The sheet 130 'is heated to a temperature of about 150 to 250 ° C through a heater heating unit 230 provided above and below the sheet conveying die 160a, and the sheet conveying passage 160a. Foam olefin laminated on the upper side of the non-foamed olefin sheet 130 'while passing through the sheet foam passage 160b formed at a height at one end of the sheet) and having a predetermined height (t) larger than the size of the sheet transfer passage 160a. Sheet 130 is to be uniformly foamed to a constant height.

On the other hand, the sheet foaming die 170, the sheet conveying passage 160a and the sheet foaming passage 160b is formed so that the foam olefin sheet 130 is foamed, through the guide bar 180 on both sides of the sheet foam die 170 After the ball screw 190 that vertically adjusts the height of the foam passageway 160b is placed vertically, the ball screw 190 is extended to the driving motor 200, thereby adjusting the controller 220 which is the roller drive unit 210. By the drive motor 200 and the ball screw 190 is driven by the operation of raising and lowering the sheet foam die 170 of the foam olefin sheet 130 that is foamed while passing through the sheet foam passage (160b) Ensure uniform foam height adjustment.

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 foam olefin sheet 130 is foamed to the sheet conveying passage 160a side sheet foam die ( 170) the upper and lower sides of the steam heating unit 240 may 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, The foam and the non-foamed olefin sheets 130 and 130 ′ respectively supplied through the first and second extruders 110 and 120 are stacked on the inlet side of the foam zone 150 so as to be laminated and transported through the compression roller 140. A foam olefin sheet 130 formed on the sheet conveying passage 160a and one end of the sheet conveying passage 160a formed to have a predetermined height t is formed to be stacked above the non-foamed olefin sheet 130 '. Sheet foaming dies 170 in which sheet foaming passages 160b are formed, respectively, so that the foaming is performed; The foam olefin sheet 130 is lowered integrally with the sheet foam die 170 so as to adjust the height of the sheet foam passage 160b through guide bars 180 on both sides of the sheet foam die 170 on which the foam olefin sheet 130 is foamed. The ball screw 190 is vertically placed, the ball screw 190 is spoken with the drive motor 200, the drive motor 200 is driven to the controller 220 located above the foam zone 150. A die driver 210 installed; And A foam having a dual structure, comprising: a heater heating unit 230 disposed above and below the sheet conveying passage 160a side of the sheet foam die 170 so that the foam olefin sheet 130 is heated and foamed Olefin foaming device. The foam having a dual structure according to claim 1, wherein steam heating parts (240) are installed on upper and lower sides of the sheet foam die (170) on the sheet conveying passage (160a) so as to foam the foam olefin sheet (130). Olefin foaming device.