JPS60141445A - Working positioning jig for spinning nozzle - Google Patents

Abstract

PURPOSE:To obtain a positioning jig having high accuracy and high reproducibility by installing a pin block, opposed to the center of the concaved part on a receiving and supporting block and supporting in slidable ways, a pin having the sharp top edge. CONSTITUTION:A receiving and supporting block 7 having a concaved part in flat-surface V-form at the center of the front part is fixedly installed onto a base 1, and a pin block 8 is installed, opposed to the center of the concaved part of the block 7, at the position separated by a proper interval, and a pin 9 having the sharp top edge is supported in slidable ways, and a guide block 11 having a tapped hole 10 is installed behind the pin block 8, and a pressing metal 12 for pressing and advancing the pin 9 is screwed into the tapped hole 10 on the guide block 11. Therefore, a nozzle material is arranged into the concaved part of the receiving and supporting block on the base, and the nozzle material can be simply positioned at three points and held and fixed by only advancing the pin by advancing the pressing metal on the guide block.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a positioning jig for processing a spinneret.

As shown in FIG. 1, the conventional positioning jig for processing a spinneret is provided with a stepped recess 3 in the shape of 1JJ in which the spinneret element 4A2 is inserted in the center of the base I, and the circumferential direction of the four parts 3 of the step 1 is A plurality of presser feet 4 are provided on the base I so as to be movable up and down, and this processing positioning jig 5 is used to adjust the stage (=J) of the base I when processing the spinning holes of the spinneret. The base material 2 is inserted into the recess 3 as shown in 1, and the presser plate 4 is lowered to hold down the outer periphery of the base material 2 and fixed thereon. Drill a spinning hole.

By the way, such a processing positioning jig 5 cannot position the spinneret material 2 in the circumferential direction within the stepped recess 3 of the base I, so it is difficult to cut the polymer introduction hole in the spinning hole drilling process. In order to remove debris and clean the mouthpiece material 2, and to remove bulges and burrs caused by the punch and reamer of the polymer discharge hole, the entire mouthpiece material 2 is passed through the stepped recess 3.
Although it is removed frequently from the inside, when it is inserted into the stepped recess 3 again, it is extremely difficult to set it back to its original position.
Positional reproducibility was lacking.

Further, the processing positioning jig 5 has a stepped recess 3 of the base 1.
Since only the base material 2 with a certain size can be inserted, there are many ff
In order to position the base elements +A2 having different sizes of fitJi, it is necessary to prepare a large number of processing positioning jigs corresponding to the positions.

The present invention was made in view of the above circumstances, and provides a spinning method that allows the spinneret element l to be placed in its original position with high precision, has high position reproducibility, and can easily position and hold a wide variety of spinneret materials with different dimensions. The present invention aims to provide a positioning jig for machining a mouthpiece.

An embodiment of the positioning jig for processing a spinneret according to the present invention will be described below with reference to FIGS. 2 and 3. A support flock 7 having a V-shaped recess 6 in the center of the front is fixed on a base 1. A pin block 8 is provided at a position facing and spaced apart from the center of the four parts 6 of this support block 7 to slidably support a pin 9 having a sharp tip, and a screw hole 10 is provided at the rear of the pin block 8. A guide block 11 is fixedly provided, and a presser foot 12 is screwed into a tapped hole 10 of the guide block 11 to push the pin 9 forward.

The processing positioning jig 13 having such a configuration is arranged so that the plane V of the support block 7 on the base 1 is aligned when processing the spinning hole of the spinneret.
After positioning the base material 2 in the shaped recess 6 as shown in the figure and abutting the outer peripheral surface of the base material 2 on both sides of the recess 6, the guide block 11 on the base 1 facing the support block 7 is placed. Rotate forward the presser foot 12 screwed into the screw hole 10,
The tip of the pin 9 is pressed against the outer peripheral surface of the base material 2 to position and hold the base material 2 at three points. Then, in this state, a spinning hole is bored in the spinneret material 2 using a trill or a punch.

In the process of drilling a spinning hole in this nozzle material 2, in order to remove cutting waste from the polymer introduction hole and to clean the nozzle material 2, the nozzle is cleaned to remove bulges and burrs caused by punching and reaming of the polymer discharge hole. Even if the material 2 is removed more frequently than the machining positioning jig Bt3, when it is held and fixed again by the recess 6 of the support block 7 and the pin 9, the pin 9, which initially has a sharp tip, is pressed against one point on the outer peripheral surface of the base material 2. Since there is a mark made by the mark, if the base material 2 is turned and set so that the tip of the pin 9 touches this mark, it can be accurately positioned and fixed at the original position.

However, if the dimensions of the spinneret material 2 for drilling the spinning hole change, by rotating the presser foot 12 of the guide block 11 forward or backward as appropriate, it is possible to save money with any large or small spinneret material. It can be simply positioned, held and fixed.

As can be seen from the above explanation, the processing phase i of the spinneret of the present invention
■According to the determining jig, place the ferrule material in the recess of the support block on the base, and move the presser foot of the guide block forward.
The base material can be easily positioned, held and fixed at three points by moving the pin forward.

In addition, even if the metal collection 4A is removed from the machining positioning jig lii times, the cap material should be adjusted so that the tip of the pin touches the mark made by the sharp tip of the pin when it was initially positioned and fixed. If you center it, you can position it and fix it in its original position with good ellipse. Furthermore, even with different sizes of mouthpiece materials, by appropriately adjusting the amount of advance of the presser foot, there are excellent effects such as the ability to simply position and hold the presser foot.

[Brief explanation of drawings]

Figure 1 shows the vertical positioning jig for processing a conventional spinneret.
FIG. 2 is a plan view of a positioning jig for processing a spinneret according to the present invention, and FIG. 3 is a partially cutaway side view thereof. 1---One base, 6---One recess, 7---One support block, 8'------Pin block, 9------
Pin, 10----- Single hole, 11-- Guide block, 12-- Presser foot, 13-- Addition of the present invention.
Two positioning jig. Applicant Ischu Kikanku Kogyo Co., Ltd.

Claims (1)

[Claims] A supporting block having four flat V-shaped parts at the center of the front is fixed on the base, and a pin pro/7 is provided at an appropriate distance from the center of the concave part of the supporting block to attach a pin with a sharp tip. A guide block having a threaded hole in the center is fixed behind the pin block, and a presser foot that presses and advances the pin is screwed into the threaded hole of the guide block. Positioning jig for machining the mouthpiece.