JPH09117621A - Device for manufacture filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a filter comprising woven fabric of short cylindrical shape having high dimensional accuracy by a method wherein tape-shaped woven fabric is superposed and bonded to one another, while margins for superposing are being formed, to form the fabric into a cylindrical shape, and the margins are fused to one another and then the fabric is cut off. SOLUTION: Tape-shaped woven fabric W1 is passed from a raw fabric feed part 1 through between a stem 2 and an outer element 3, while both edges thereof being regulated by an edge regulating metal fitting, so as to be formed into a cylindrical shape in such a manner that margins for superposing are formed. Next, the margins of woven fabric W2 in the form of a cylinder are fused by means of a fusing means 6 and thereafter the woven fabric W3 is diametrically cut off, following which short cylindrical woven fabric, after being cut off, is taken out by a filter takeout means 8. A series of such operations is carried out smoothly to obtain a filter having high accuracy and precise perpendicularity of cylinder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an industrial apparatus for manufacturing a filter used in an automobile or the like.

[0002]

2. Description of the Related Art Filters for automobile brake fluids are:
Usually, it is a short cylindrical mesh body made of woven fabric made of nylon fiber yarn, and is used by being fitted inside a cylindrical ring having a constant diameter and having a liquid passage window. The size of the filter is as small as about 4 mm in height × about 14 mm in diameter and about 11 mm in height × about 16 mm in diameter.

This filter is usually formed by laminating tape-shaped woven cloth in a palm shape to form a short cylindrical shape, and the shape at that time is as shown in (a) or (b) of FIG.

[0004]

In the filter shown in (a) and (b) of FIG. 6, since the abutment part becomes an obstacle when it is fitted in the cylindrical ring, the abutment part is protruded. It is necessary to keep the length to 0.3 mm at the maximum and to maintain the verticality of the cylinder accurately, but such precise control was not actually easy due to the manufacturing equipment and the manufacturing process.

There is also proposed a filter in which the both ends are not laminated together but laminated in a laminated form (like how to attach a cigarette). This type of filter
Since it does not have a protruding portion as in the case of sticking a palm, the problem of protruding is solved. However, since the filter is extremely small, such layering is not easy in terms of manufacturing equipment.

[0006] Under such a background, the present invention aims to provide an industrial manufacturing apparatus for obtaining a filter by a method of forming an overlap margin from a tape-shaped woven cloth while overlapping and cutting the tape. It is what

[0007]

According to the present invention, there is provided an apparatus for producing a filter, comprising: a raw material supply section (1) for supplying a tape-shaped woven fabric (W1);
, The core of the tape-shaped woven cloth (W1) from the raw fabric supply section (1)
Along the (2) and further along the gap between the core rod (2) and the mantle (3) while controlling both ears of the woven cloth (W1) with the ear end restriction fittings (4), (4). A cylindrical body forming mechanism (5) for forming a cylinder so that the overlapping margin can be formed, and a fusion for fusing the overlapping margin of the cylindrical woven cloth (W2) after passing through the cylindrical body forming mechanism (5). Wearing means (6)
The cutting means (7) for cutting the woven cloth (W3) after being fused in a cylindrical shape in the radial direction, the short cylindrical woven cloth after the cutting (W
It is provided with a filter take-out means (8) for taking out 4).

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

The original fabric supply part (1) is for supplying a tape-shaped woven cloth (W1). This tape-shaped woven fabric (W1)
Is made of a long woven cloth of a predetermined width made of nylon fiber thread or the like.

The cylindrical body forming mechanism (5) is the above-mentioned original fabric supply section.
The tape-shaped woven cloth (W1) from (1) is regulated along the core rod (2), and both ears of the woven cloth (W1) are regulated by the ear end regulating metal fittings (4), (4). Meanwhile, it is to be cylindrical along the gap between the core rod (2) and the jacket (3) so as to allow a stacking margin.

That is, in the first half of the core rod (2), the tape-shaped woven fabric (W1) is gradually formed into a cylindrical shape along the core rod (2), and in the latter half of the core rod (2), the cylindrical shape is formed. Pass through the gap between the core rod (2) and the mantle (3) while allowing a slight margin for forming. In this case, both ears of the woven fabric (W1) are regulated by the ears regulating fittings (4) and (4).

The fusing means (6) is a means for fusing the overlap margin of the cylindrical woven fabric (W2) after passing through the tubular body forming mechanism (5). Various mechanisms can be adopted as the fusing means (6), but it is particularly preferable to use a means for fusing with ultrasonic waves. In that case, an ultrasonic horn (6a) is provided.

The cutting means (7) is a means for cutting the woven cloth (W3) after being fused in a cylindrical shape in the radial direction. The cut at this time is particularly desirably heat cut in order to prevent the woven fabric (W3) from fraying from the cut line.

At the place of the cutting means (7), it is desirable to provide an air hand gripper (9) for preventing twisting during cutting.

The filter take-out means (8) is a means for taking out the short cylindrical woven cloth (W4) after cutting, and a suction cup system or the like is adopted.

A filter made of the obtained short cylindrical woven cloth (W4) is fitted in a cylindrical ring (12) having a constant diameter having a liquid passage window to form an oil filter, which filters automobile brake oil and the like. Used for.

<Operation> According to the manufacturing apparatus of the present invention, the woven cloth (W2) is obtained by forming the lap cloth from the tape-shaped woven cloth (W1) and then stacking the woven cloth (W2) to form a cylinder. A woven fabric (W3) that is fused and fused into a cylindrical shape is formed, and the woven fabric (W3) is further cut to form a short cylindrical woven fabric (W4). . The filter made of the woven cloth (W4) in the shape of a short cylinder obtained in this way has good dimensional accuracy, and the verticality of the cylinder is also accurately maintained.

[0018]

The present invention will be further described with reference to the following examples.

Example 1 FIG. 1 is a side view showing an example of a filter manufacturing apparatus of the present invention. FIG. 2 is a front view of a portion of the cylinder forming mechanism (5) of the manufacturing apparatus of FIG. FIG. 3 is a sectional view taken along line XX of FIG. FIG. 4 is a perspective view of a filter manufactured by the manufacturing apparatus of FIG. FIG. 5 is a perspective view of an oil filter equipped with the filter of FIG.

1 (1) at the top of FIG. 1 is an original fabric feeding part, and a woven cloth (W1) made of tape-shaped nylon fiber yarn wound around a reel (1a) is fed downward from here. Be done.

Reference numeral (5) is a cylindrical body forming mechanism, and as shown in FIGS. 2 and 3, the core rod (2), the outer jacket (3) and the edge-end regulating metal fitting.
It is composed of (4) and (4). The edge control fittings (4), (4)
It is attached to the mantle (3) with bolts (10).

The tape-shaped woven cloth (W1) is gradually formed into a cylindrical shape along the core rod (2) in the first half of the core rod (2) and then in the latter half of the core rod (2) with a slight overlap margin. Then, in that state, it passes through the gap between the core rod (2) and the mantle (3). Both ears of the woven fabric (W1) are regulated by the ears regulating fittings (4), (4) while passing through the gap between the core rod (2) and the outer jacket (3).

(6) is a fusion means, which is an ultrasonic horn (6a)
It has. By this ultrasonic horn (6a), the cylindrical woven fabric (W2) that has passed through the tubular body forming mechanism (5) is fused at the overlap portion. In addition, (11) and (11) in FIG. 1 are feed rollers.

(7) is a cutting means, (7a) is a hot blade, (7b) is a motor for rotating the hot blade (7a), and (7c) is a current collecting brush for the hot blade (7a). Woven cloth (W3) after fusion in a cylindrical shape
Is heat cut in the radial direction by the hot blade (7a).

(9) is an air hand gripper for preventing twisting at the time of cutting, and the hot blade (7) of the cutting means (7)
It is installed just below a).

Reference numeral (8) denotes a filter take-out means of a suction cup type, which takes out the woven cloth (W4) in the form of a short cylinder after cutting.

The above operation is performed fully automatically. The filter made of the obtained short cylindrical woven cloth (W4) has good dimensional accuracy and the verticality of the cylinder is also accurately maintained. This filter is fitted inside the cylindrical ring (12) as shown in FIG.
It is used as an oil filter.

[0028]

As described in the section of the operation, according to the manufacturing apparatus of the present invention, the woven cloth (W2) is formed by stacking the tape-shaped woven cloth (W1) while forming the overlap margin and forming a cylinder. To obtain a woven fabric (W3) which is then fused into a cylindrical shape by fusing the overlap margin.
Further, a series of operations for cutting the woven cloth (W3) to form the short cylindrical woven cloth (W4) is extremely smoothly performed. The filter made of the woven cloth (W4) in the shape of a short cylinder obtained in this way has good dimensional accuracy, and the verticality of the cylinder is also accurately maintained.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a filter manufacturing apparatus of the present invention.

FIG. 2 is a front view of a part of a cylinder forming mechanism (5) of the manufacturing apparatus of FIG.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a perspective view of a filter manufactured by the manufacturing apparatus of FIG.

5 is a perspective view of an oil filter equipped with the filter of FIG. 4. FIG.

FIG. 6 is a perspective view showing an example of a conventional filter in which a tape-shaped woven cloth is bonded in a palm shape at one place or two places to form a short cylinder.

[Explanation of symbols]

 (1) ... Raw fabric supply part, (1a) ... Reel, (2) ... Core rod, (3) ... Outer cylinder, (4) ... Ear end restricting metal fitting, (5) ... Cylindrical body forming mechanism, (6) ... Fusing means, (6a) ... Ultrasonic horn, (7) ... Cuting means, (7a) ... Hot blade, (7b) ... Motor for rotating drive of hot blade (7a), (7c) ... Hot blade ( Current collecting brush for 7a), (8) ... Filter removing means, (9) ... Air hand gripper, (10) ... Bolt, (11) ... Feed roller, (12) ... Cylindrical ring, (W1) ... Tape-shaped woven fabric, (W2) ... Cylindrical woven fabric, (W3) ... Cylinder-fused woven fabric, (W4) ... Short-cylindrical woven fabric

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Isamu Shimizu 3-16-7 Nishi-Narizawa-machi, Hitachi City, Ibaraki Prefecture (72) Inventor Kei Teramoto 2-13 Muroji Temple, Kanazawa City, Ishikawa Prefecture

Claims (4)

[Claims] 1. A material supply section for supplying a tape-shaped woven fabric (W1).
(1), the tape-shaped woven fabric (W1) from the raw fabric supply section (1) is used as a core rod (2)
Along the gap between the mandrel (2) and the mantle (3) while controlling both ears of the woven cloth (W1) with the ear end restriction fittings (4), (4). A cylindrical body forming mechanism (5) for forming a cylinder so that a margin can be formed; (6) Cutting means (7) for cutting the woven cloth (W3) after being fused into a cylindrical shape in the radial direction, and filter taking-out means for taking out the woven cloth (W4) in a short cylindrical shape after cutting A filter manufacturing apparatus comprising (8). 2. The manufacturing apparatus according to claim 1, further comprising an air hand gripper (9) for preventing twisting during cutting. 3. The manufacturing apparatus according to claim 1, wherein the fusing means (6) is means for fusing with ultrasonic waves. 4. The manufacturing apparatus according to claim 1, wherein the cutting means (7) is means for achieving cutting by heat cutting.