JP2871529B2 - Roller head extruder side guide - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side guide of a roller head extruder for extruding a polymer material into a sheet.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a roller head extruder for extruding a polymer material such as rubber, plastic or the like has a single-screw or twin-screw screw 7 in an extruder main body (hopper cylinder) 2. And a pair of upper and lower calendar rolls 4 are rotatably supported in front of the material extrusion port 3 of the extruder body 2, and a pair of side guides 1 'are disposed on both left and right sides.

The upper and lower calendar rolls 4 and the left and right side guides 1 'form a bank 8. The bank 8 is filled with the material extruded from the material extrusion port 3 by the screw 7, and the left and right side guides 1' are formed. The width of the material is regulated by a pair of calendar rolls, and the material is extruded into a sheet by a pair of calendar rolls. The left and right side guides 1 ′ determine the width of the extruded sheet.

Reference numeral 9 denotes a head pressure detecting means provided on the side guide 1 ', which detects the head pressure of the bank 8 and adjusts the rotation of the calendar roll 4 in response to the increase or decrease of the pressure. It is for controlling to become.

[0005]

The prior art side guide 1 'is made of a resin or steel or the like. In the case of a polymer material, particularly rubber, it adheres to the surface depending on the kind thereof, and a rubber residue is generated. Sometimes. Such a rubber residue needs to be cleaned every time the rubber type is changed, and if left as it is, it may cause contamination of impurities and burning.

[0006] A first object of the present invention is to provide a cooling head by forming a jacket in the inside thereof so as to be able to cool by supplying a cooling liquid, thereby preventing a material from adhering. There is a guide to provide. A second object of the present invention is to provide a side guide of a roller head extruder in which abrasion resistance can be improved and the adhesion of material can be more reliably prevented by further plating the surface. It is in.

[0007]

A first concrete means for solving the problems in the present invention is that a pair of left and right calender rolls 4 are disposed in front of a material extrusion port 3 of an extruder main body 2.
Is that the jacket 5 to which the cooling liquid is supplied is formed in the side guide of the roller head extruder that determines the sheet width by regulating the width of the material supplied to the roller.

The second specific means for solving the problem in the present invention is that, in addition to the first specific means, the surface 1A which comes into contact with the material of the side guide is plated.

[0009]

A polymer material such as rubber is extruded from a material extrusion port 3 of an extruder body 2 into a bank 8 with a screw 7 and a sheet is formed by a pair of upper and lower calendar rolls 4 while regulating the width with a pair of left and right side guides 1. Mold into When a cooling liquid such as water is supplied to the jacket 5 of the side guide 1 during the molding,
The side guide 1 is cooled, and the material does not adhere even when the surface 1A is in contact with the material.

When hard chrome plating is applied to the surface 1A, the abrasion resistance is increased, and the adhesion of the material is drastically reduced due to the smooth surface.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a side guide of the present invention, which is mounted on the roller head extruder shown in FIGS. The side guide 1 has a mounting plate 12 fixed to the edge of the extruder main body 2 side of the mountain-shaped member 11 having a mountain shape in the side view of Fuji.
The upper and lower jacket plates 14 are inclinedly fixed to the outer surface of the angled member 11 so that the mounting plate 12 and the rib plate 13 are connected to each other, and the upper and lower jacket plates 14 are fixed to the outer surface of the angled member 11 in an inclined manner. A cover plate 15 is provided so as to cover the upper and lower spaces, and the jacket 5 is formed by communicating the upper and lower spaces with a notch 16 formed in the rib plate 13.

The angle member 11, the mounting plate 12, the rib plate 13, the jacket plate 14, and the cover plate 15 are made of a steel plate, an iron plate,
The mounting plate 12 is formed of another metal plate and fixed by welding or the like. The mounting plate 12 is mounted on the extruder main body 2 so that the position in the left and right direction can be adjusted, and the set width of the sheet to be extruded can be adjusted. A piping hole 15A is formed in each of the upper and lower cover plates 15, one of which is an inlet and the other is an outlet, so that a hose or the like for supplying a coolant such as water from a supply source can be connected in the jacket 5. ing.

Reference numeral 17 denotes a hole which penetrates the angle member 11 and the rib plate 13 and into which a pressure sensor as the head pressure detecting means 9 is inserted. The inner surface of the angled member 11 is the surface 1A of the side guide 1 forming the bank 8, and this surface 1A
Is plated with a wear-resistant metal such as hard chrome plating.

When the side guide 1 as described above is incorporated in a roller head extruder, and a polymer material such as rubber or plastic is extruded by a screw 7 from a material extruding port 3 of an extruder body 2 to a bank 8, a pair of left and right sides is obtained. While the width is regulated by the side guide 1, the sheet is extruded and formed into a sheet by the pair of upper and lower calendar rolls 4. Since the surface 1A of the side guide 1 is constantly in contact with the high-temperature material in the bank 8, the surface 1A tends to increase in temperature by receiving the heat of conduction. Materials that come in contact are more likely to peel off and are prevented from adhering.

When the surface 1A of the side guide 1 is coated with hard chrome, even when it comes into contact with the material flowing in the bank 8, the wear is reduced as compared with the case without plating, and the surface becomes smooth. The adhesion of the material is also reduced.
Note that the present invention is not limited to the above embodiment,
Various modifications can be made. For example, side guide 1
Is formed by combining a plurality of plate members by welding or the like, and this is formed into an integral body having a space for the jacket 5 by forging or casting, and a cover plate 15 having a piping hole 15A formed therein is formed. The side guide 1 may be fixed or the entire surface of the side guide 1 may be plated.

[0016]

According to the present invention described in detail above, since the jacket 5 to which the cooling liquid is supplied is formed inside the side guide 1, the side guide 1 can be cooled during material extrusion. The material can be prevented from adhering to the surface 1A of the side guide 1, material replacement, cleaning, and the like become extremely easy, and contamination of impurities and burning can be eliminated.

Further, the surface 1A which contacts the material of the surface 1A
Since plating is performed, the wear resistance can be improved, and the adhesion of the material can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a sectional plan view of the same.

FIG. 4 is a sectional view taken along line XX of FIG. 1;

FIG. 5 is a sectional side view of a roller head extruder to which the present invention can be applied.

FIG. 6 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side guide 1A Surface 2 Extruder main body 3 Material extrusion port 4 Calendar roll 5 Jacket

Continuation of the front page (56) References JP-A-52-14664 (JP, A) JP-A-53-57266 (JP, A) JP-A-54-127466 (JP, A) JP-A-54-127467 (JP, A) JP-A-63-25027 (JP, A) JP-A-4-246525 (JP, A) JP-A-3-161314 (JP, A) JP-A-1-68819 (JP, U) JP-A 3-16223 (JP, U) Japanese Utility Model 4-9720 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B29C 47/00-47/96 B29C 43/24 B29C 43 / 34

Claims (2)

(57) [Claims] 1. A roller head extruder that determines a sheet width by restricting the width of a material supplied to a pair of calendar rolls (4), which is disposed in front of a material extruding opening (3) of an extruder body (2). A side guide of a roller head extruder, wherein a side guide of the machine is formed with a jacket (5) through which a cooling liquid is supplied. 2. The side guide of a roller head extruder according to claim 1, wherein the surface (1A) in contact with the material is plated.