JPS62210017A - Method and device for rounding filter medium of concentric circular element - Google Patents

Abstract

PURPOSE:To easily form the title concentric circular element at a low cost by successively inserting the sectorial arcuate tooth plates of the upper and lower comb-line jigs into the conical pleat of a sectorial filter medium, and then fixing a concentric circular upright plate into the filter medium. CONSTITUTION:The sectorial filter medium 10 is meshed with the concentric arcuate tooth plate 32 of the lower comb-line jig 30, and the arcuate tooth plate 42 of the first upper comb-line jig 40 is meshed with the conical pleat of the filter medium 10 from the upper part. Then the upper comb-line jig 40 is slid, the second and third upper comb-line jigs having the same shape as the upper comb-line jib 40 are successively inserted into the sectorial filter medium 10 in the same way to form a ring. the sectorial filter medium 10 is taken out along with the ring, and fixed into the lower circular comb-line jig provided with many ring plates concentrically implanted into a stand 31. The respective upper comb-line jigs are finally removed, and the filter medium 10 is appropriately compressed to fix the shape.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used in the manufacture of concentric circular elements for filtering gas or liquid, in which a large number of folds are arranged in a concentric circular arc shape, the diametrical cross section of which is a continuous chevron shape. The present invention relates to a method for rolling a fan-shaped filter medium and an apparatus used therefor.

2. Description of the Related Art Conventionally, in order to obtain a concentric circular element for application of fluid dζ whose diametrical cross-section has a continuous chevron shape, a method of rounding a t''A-shaped filter medium has been carried out using a flexible material with a chevron-shaped surface. A method was used in which the spacer was rolled around the mandrel along with a spacer, and then the spacer was removed, but this method made it difficult to create accurate circles and intervals due to the restoring force of the filter medium's elasticity, and also required manual correction. Because it required a lot of work, it was not possible to produce a certain amount of work, and the workability was not good.On the other hand,
Recently, a method of rounding a ring-shaped element using a device equipped with a rounding jig and a rounding jig has been proposed (see JP-A-60-225615).

Problems to be Solved by the Invention However, the apparatus used in the above-mentioned molding method has a drawback that the mechanism is complicated and the cost is high.

An object of the present invention is to provide a method and an apparatus for rolling a fan-shaped filter medium having chevron-shaped pleats into an accurate shape using a very unique jig, unlike the above-mentioned apparatus.

Means for Solving the Problems In order to achieve the above-mentioned objects, the present invention provides a lower comb-shaped jig in which a large number of concentric arc-shaped comb teeth plates are sequentially planted in a fan shape at regular intervals on a mounting base, and a lower comb-shaped jig in which a plurality of concentric arc-shaped comb teeth plates are set up in a fan shape on a fan-shaped substrate. A plurality of upper comb-shaped jigs are provided with arc-shaped comb-tooth plates having the same shape as the comb-tooth plates of the jigs and can be arranged in a ring shape, and a lower part is provided with a number of ring plates set concentrically on a mounting table. Using a circular comb-shaped jig, first engage the concentric chevron-shaped pleats of the fan-shaped filter medium with the comb-tooth plate of the lower comb-shaped jig, and from above, engage the comb-teeth plate of the first upper comb-shaped jig to the chevron-shaped pleats of the filter medium. After meshing, slide this upper comb-shaped jig, then fit the other upper comb-shaped jigs one after another in the same way to form a ring shape, and then take out the fan-shaped filter medium together with this and insert it into the lower circular comb-shaped jig 7. After fitting and finally removing each upper comb-shaped jig, the filter medium is appropriately pressurized to fix its shape.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 1 for the case of a fan-shaped filter medium in which a plurality of fan-shaped filter medium pieces whose central circular arc portions are bent into a chevron shape are sewn together in order of size to form a large number of chevron-shaped pleats. This will be explained with reference to FIG.

First, a fan-shaped filter medium 10 having a large number of chevron-shaped pleats is bent into a substantially ring shape so that both side edges 11 and 11' thereof are in contact with each other, and then this is inserted into a ring 20 having the same diameter (FIG. 1). Next, reference numeral 30 denotes a lower comb-shaped jig made of a steel plate in which a large number of concentric arc-shaped comb teeth plates 32 having mutually different diameters are set up in a fan shape of 173 yen at regular intervals on a mounting table 31. The center part of the dρ material 10 is placed on a comb-shaped jig 30 with a ring 20.
and engage the arc-shaped S tooth plate 32 of the lower comb-shaped jig and the chevron-shaped pleats 12 of the filter medium (Fig. 28 and 2).
Figure B). Next, from above, a sector-shaped substrate 4 with a central angle of 120°
1, a 1/3 circle first upper comb-shaped jig 40 made of a steel plate with an arc-shaped comb-teeth plate 42 of the same shape as the arc-shaped comb-teeth plate 32 of the lower comb-shaped jig 30 is placed on top of the lower comb-shaped jig 30. After suctioning the comb tooth plate 42 so that it engages with the chevron folds 12 of the filter medium at a position corresponding to the arcuate comb tooth plate 32 of the lower comb-shaped jig, the comb tooth plate 42 is slid to the right by about 120 degrees (see Fig. η and Fig. Figure 3B)
.

Next, the arcuate comb teeth plate 42 of the second upper comb-shaped jig 40' of the same shape is similarly engaged between each of the chevron folds 12 of the handle 10, and then the upper comb-shaped jig is moved approximately to the left. Slide it 120 degrees (Figure 4). Next, a third upper comb-shaped jig 40'' of the same shape is further fitted into the filter medium lO, and the three upper comb-shaped jigs 4
0.40', 40'' are fitted into the filter medium 10 in a ring shape (Fig. S).Next, the filter medium 10 is fitted with the ring-shaped upper comb-shaped jig 40.40', =10''. The filter medium 10 is placed between each of the circular upright plates 52 in a lower circular comb-shaped jig 50 made of a steel plate in which a plurality of circular upright plates 52 are successively set up concentrically at regular intervals on a mounting table 51. Insert so that each chevron fold 12 fits into each other (FIG. 6). Next, the upper comb-shaped jigs 40, 40', 40'' are removed, and the filter medium 10 is pressure-formed, and its fold apex is heated with a heating plate 60 to fix the shape (FIG. 7).

In the above example, three 173 yen upper comb-shaped jigs were used to slide each 120° on the filter medium.
It is also possible to use four pieces of /4 yen and slide them 90 degrees each.

Effects of the Invention As described above, when a fan-shaped filter medium having a large number of chevron-shaped folds in an arc direction is rolled into a ring shape so that the chevron-shaped folds are concentric, the present invention provides a J'+M-shaped pox material. Simply fit the 173 yen or 174 yen fan-shaped concentric arc-shaped Mm plates of the upper and lower comb-shaped jigs into the formed material folds from above and below, and after 7 d, fit the filter medium into the concentric circular upright plates of the circular comb-shaped jigs. This makes it extremely easy to work with, allows concentric circular elements of precise dimensions to be formed, and the equipment is simple and low cost.

[Brief explanation of drawings]

The drawings are explanatory diagrams following the process of the embodiment of the present invention, and the first
The figure shows the step of inserting a fan-shaped filter medium with chevron-shaped pleats into the ring, Fig. 2A shows the step of fitting the filter medium inserted into the ring into the lower comb-shaped jig, Fig. 2B shows its cross section, and Fig. 3A shows the next step. At the stage of fitting the first upper comb-shaped jig into the filter medium, FIG. 2B shows its cross section, and FIGS. 4 and 5 show the stage of sequentially inserting the second and third upper comb-shaped jigs, and FIG. FIG. 7 shows the step of fitting the filter medium into the circular comb-shaped jig, and the step of heating the seamed portion of the chevron folds of the filter medium. 10... Fan-shaped filter medium 12... Yamagata pleats 2
0... Ring 30... Lower comb-shaped jig 32... Arc-shaped comb tooth plate 40
．． 40', 40''...Upper comb-shaped jig 42...Circular comb tooth plate 50...Circular comb-shaped jig 52...Circular upright plate 60...Heating plate Patent applicant Osamu Yasushi Mitsuyo Co., Ltd. People Hisataka
Minoru June 2, 1988 Mr. Michibe Uga, Commissioner of the Patent Office ■Indication of the case 1988 Patent Application No. 50650 2 Name of the invention Method and device for filter media rounding of concentric circular elements 3 Case of person who makes amendments Related Patent Applicant Address 3-11-20 Miyashita, Sagamihara City, Kanagawa Prefecture Name
Yasushi Co., Ltd. Contents of correction in column 7 of "3. Detailed explanation of the invention" of the specification subject to the 6th amendment of the optical spontaneous correction (1) "Fig. 8" on page 5, line 20 of the specification figure"
Changed to (2) Insert the 10 characters "from the lower comb-shaped jig 30" next to "filter medium lO" on the 6th line of page 7. June 2, 1985 Michibe Uga, Director General of the Patent Office 1 Case Indication 1986 Patent Application No. 50650 2 Name of Invention With the Minna case in which 3 amendments are made to the filter media rounding method and mounting of concentric circular elements Related Patent Applicant Address: 3-chome ff1i-1-20, Miyashita, Sagamihara City, Kanagawa Prefecture Name: Yasumitsu Co., Ltd. May 27, 1986 (Delivery date) 6. "4. Brief description of drawings" in the specification subject to amendment Columns and Figures 1 to 7 Contents of the 7th amendment (1) Changed “Figure 2B” to “3B
Figure. (2) Send Figures 1 to 7 to the military headquarters as attached.
1. ＃ Mikuku thief

Claims (3)

[Claims] (1) In manufacturing a concentric circular element for filtering gas or liquid, a fan-shaped filter medium 10 equipped with a large number of concentric arc-shaped chevron folds 12
Roll it almost into a ring shape and insert it into the ring 20, and then
From above the lower comb-shaped jig 30, which has a large number of concentric arc-shaped comb-tooth plates 32 set up in a 1/3-circle fan shape at regular intervals, the comb-tooth plates 32 and the chevron-shaped pleats 12 of the fan-shaped filter medium are sequentially placed on a mounting table. The comb-tooth plate 4 having the same shape as the comb-tooth plate 31 of the lower comb-shaped jig is inserted onto the 1/3 circular fan-shaped substrate from above.
2, a first upper comb-shaped jig 40 having a comb tooth plate 42
After fitting the fan-shaped filter medium so that the angle-shaped pleats 12 of the fan-shaped filter medium mesh with each other in sequence, only this upper comb-shaped jig 40 is rotated by 120 degrees, and then the second and third upper comb-shaped jig 40 of the same shape as the first upper comb-shaped jig 40 are inserted.
Similarly, the upper comb-shaped jigs 40' and 40'' are fitted into the fan-shaped filter medium 10 to arrange the three upper comb-shaped jigs in a ring shape. A lower circular comb-shaped jig 50 equipped with a large number of ring plates 52 that are simultaneously removed from the comb-shaped jig 30 and planted concentrically on a stand.
Then, the filter medium is inserted between the ring plates 52 so that the chevron-shaped pleats 12 are fitted one after another, and finally, the three upper comb-shaped jigs are removed and the filter medium 10 is appropriately pressure-formed to fix the shape. A filter media rounding method using concentric circular elements. (2) A patent that uses four upper comb-shaped jigs in which a large number of concentric arc-shaped comb tooth plates are successively planted at regular intervals in the shape of a 1/4-circle sector on a 1/4-circle sector-shaped substrate. A method for rounding a filter medium of concentric circular elements according to claim 1. (3) In manufacturing a concentric circular element for filtering gas or liquid, a large number of concentric arc-shaped comb teeth plates 32 that engage with a large number of concentric arc-shaped chevron folds 12 of a fan-shaped filter medium are planted in a fan shape at regular intervals on a mounting table. A lower comb-shaped jig 30 is provided with a comb-tooth plate 42 that has the same shape as the comb-teeth plate of the lower comb-shaped jig and engages with the chevron folds 12 of the fan-shaped filter medium on a sector-shaped substrate, and a plurality of upper parts that can be arranged in a ring shape. A comb-shaped jig 40, a lower circular comb-shaped jig 70 in which a number of concentric ring plates 72 into which the fan-shaped folds 12 of the fan-shaped filter medium fit are set on a mounting table, etc. Device.