JPS60105521A - Thickness deviation regulating device for cross head of extruder - Google Patents

Abstract

PURPOSE:To regulate easily the eccentricity of an extruding die and coating device by causing the die to be movable in left and right direction in relation to a core string, while causing a nipple to be movable in up and down direction in relation to the core string. CONSTITUTION:A centering regulation bolts 1, 2 are fitted to the rear end of a nipple 130 into which the core string to be extruded and coated, may be inserted, and the nipple 130 is caused to be movable up and down. Other centering regulation bolts 3, 4 are fitted to a die 50, whereby the die 50 is caused to be movable left and right (the front and back direction of paper surface). The regulation in up and down directions is achieved by the regulation bolts 1, 2 of the nipple rear end, and the regulation in left and right directions is achieved by the regulation bolts 3, 4 of the die part. Because the regulation may be achieved separately in up and down directions and left and right directions, the regulation is easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [The origin of the invention] The present invention is an improvement of the uneven thickness adjusting device for a crosshead.

Figure 1 shows the bottom stage of the extruder after removing the thickness unevenness adjustment device for the cross head, and inside the cross head body 11, an insulating layer 9 is extruded on the outer periphery of the extruder. J
A nipple holder 6 is provided into which the core wire 10 is inserted.

On the exit side of the center d110 of the cross rad body 11, a die 5 is attached to the outer periphery of a nipple 13 attached to the tip of the nipple holder 6 in the die mounting bracket 12 via alignment adjustment bolts 1 to 4. ing. The alignment adjustment bolts 1 to 4 are respectively attached to the die mounting bracket 12 at intervals of 90 degrees around the outer circumference of the die. (Second
(See figure) And the coating of the insulating layer 9 on the core wire 10 is as follows:
The covering insulating material 15, which is melted and pressed into the rad body 11 in the cross direction as shown by the arrow, is extruded from between the outer periphery of the nipple 16 and the inner periphery of the die 5, and becomes the core wire 10 which runs in the direction of the arrow. coated. 20 is a sleeve.

In this die eccentricity adjusting device, in the case of eccentricity n=, for example, when you want to decenter the die 5 in the direction of the alignment adjustment bolt 1, first set the alignment adjustment bolt in the direction you want to eccentric, that is, the alignment here. Loosen the adjustment bolt 1, then align this = X bolt 1 and the opposite alignment = = tighten the bolt 6 and move it forward, shift the die 5 to the desired eccentric position, and finally align. Zeke 11〈Poll 1 was tightened to fix the position of die 5.

In this case, we will explain the case where the adjustment is only in one direction, but in actual work, there is almost no such thing as simple eccentricity in one direction. In addition to the horizontal direction, there are also cases in which the tmMil is rotated in this intermediate direction, and it is necessary to loosen and adjust almost all of the alignment adjustment bolts 1 to 4. Therefore, the tuning cannot be done only once, but it is necessary to repeat the same process multiple times, which has the drawback of requiring a long time for adjustment. Additionally, the movements of the four alignment adjustment bolts interfere with each other, making automation difficult.

1-1 object of the present invention is 1) Eliminate the drawbacks of 1J'llt rice, easily produce 411f chestnuts in a short time, and easily automate. The purpose of the present invention is to provide a thickness unevenness adjusting device.

[Summary of the invention]

The load according to the present invention includes a nipple that is movable in a direction perpendicular to the longitudinal direction of the core wire to be coated by extruding an insulating layer on the outer periphery, and a nipple that is arranged on the nipple and that is arranged in the direction of movement of the nipple. It has a large, vertically movable dining chair and a more grooved bottom.

〔Example〕

Hereinafter, an embodiment of the present invention for the crosshead of the extruder (+MA) will be explained with reference to FIGS. 6 and 4.

In addition, in the drawings, the prefix and the prefix shown in FIGS. 1 and 2 respectively refer to the same or similar items in the same figures.

In this embodiment, the nipple 130 has a main body portion 131 disposed on the inner periphery of the chair 50 and a main body portion 16.
It consists of a face piece part 162 which complies with 1 and is placed through the nipple holder 6, and a flange part 166 provided at 4 of the cylindrical part 132. Core wire 10 with bolts 1 and 2
It has a structure that allows alignment in the direction perpendicular to the longitudinal direction (in the vertical direction in the figure).

Nipple holder 60 and main body portion 161 of nipple 130
What is spherical accommodation first aid letter! She is a concubine in Ru.

Reference numeral 14 denotes a disc spring that presses the spherical sliding part 16 to the nipple holder 60 and the spherical sliding part 16 at 6p where the insulation coating 15 does not flow into the spherical one-stroke moving part 16 of the main part 161 of the nipple 160.

In addition, the die 50 disposed on the outer periphery of the main body portion 161 of the nipple 160 is connected to the nipple 16 by eccentricity m=bolts 6 and 4.
It has a structure that allows alignment in a direction perpendicular to the ijJ movement direction of 0 (left-right direction in FIG. 4).

In this way, when adjusting both sides of the loquat edge layer, the vertical and horizontal directions can be adjusted independently. Conventional glue IJ suhesodo 1111ilφ size 2! As shown in Fig. 2, the device uses alignment bolts 1 to 4 in four directions around the die 50.
Even when performing vertical alignment, the vertical adjustment bolt must be adjusted after loosening the left-right alignment bolt. In this way, when adjusting in the vertical direction, the center and the right direction, mutual interference occurs and the adjustment becomes sloppy.

When considering automation of alignment, it is difficult to operate as the vertical and horizontal adjustments interfere with each other as described above. Also, in terms of space, it is difficult to incorporate two sets of eccentric adjustment drive sources (hydraulic cylinders or motors) in a limited space at the tip of the crosshead.

According to this embodiment, the uneven thickness can be adjusted independently in the vertical direction and in the horizontal direction, so that there is no mutual interference and adjustment is easy, and it is also suitable for automation.

Furthermore, since the eccentric adjustment drive source can be arranged separately before and after the crosshead, it is advantageous in terms of space and automation is easy.

In this embodiment, the eccentric adjustment bolts 1 and 2 of the nipple 130 are placed above and below the nipple holder 60, and the die 50
Although the eccentric adjustment bolts 3.4 are attached to the left and right sides of the die mounting bracket 12, it goes without saying that their positional relationship may be reversed, and that they may be placed in a positional relationship other than vertically or horizontally.

〔Effect of the invention〕

As described above, the thickness unevenness adjusting device for an extruder crosshead of the present invention can independently adjust the thickness unevenness in the vertical and horizontal directions, so the signal from the thickness unevenness detector can be used as a driving signal for a modele, etc. This enables automatic eccentricity adjustment, which allows unmanned operation and greatly reduces the number of man-hours required. Furthermore, since adjustments in the crosshead direction and left/right direction can be performed separately at the front and rear of the crosshead, it is advantageous in terms of space when automated. As a result of the above, uneven thickness adjustment of the insulating layer can be easily performed with sub-accuracy in 1.1.1 hours.

[Brief explanation of drawings]

Figure 1 shows a conventional crosshead die eccentricity adjustment device; Figure 2 is a sectional view of the main parts of a J-digit extruder; Figure 2 is the right side of Figure 1.
1111 side view, FIG. 6 is a sectional view of a main part of an embodiment of the crosshead adjustment device of the extruder of the present invention, and FIG. 4 is a right side view of FIG. 6. 1-4; Alignment adjustment pol), 5,50; Dice, 6.6
0; Nipple holder, 10; Core wire, 11; Ri 1" sou\sock body, 12: Die holder 1" metal fitting, 13, 16
0; Nipple, 14; Belleville spring, 15; Coated loquat fillet, 1
6; Spherical sliding part, 20; Sleeve, 161; Main body part, 162; Cylindrical part, 1631 Flange part.

Claims (1)

[Claims] (1) A nipple that is removed so that the core wire coated with an insulating layer extruded on its outer periphery is inserted, and the nipple tip 1
1.1 In an extrusion-like crosshead equipped with a die placed on the outer periphery, the nipple is 0T-shaped in a direction perpendicular to the longitudinal direction of the core wire, and the die is placed in a direction perpendicular to the LIJ' movement direction of the nipple. A 4H1i meat-like head for an extruder crosshead characterized by a movable 1* configuration.