JPH09253409A - Filter manufacturing jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To process a mesh body easily and surely into a bottomed cylinder and to fix the mesh body and a case surely by continuous welding. SOLUTION: In processing a bottom part mesh, the mesh is held between the mesh support 4 of a base plate 2 and the presser plate 7 of a mesh presser foot 6, and by folding the folding part of the bottom part mesh projecting outside from the presser plate 7 by the ring-shaped folding part 11 of a folding member 9, the mesh can be formed easily and surely into a short-sized bottomed cylinder. Next, in fixing the mesh, etc., in a case, the bottomed-cylindrical mesh and the case in which a cylindrical mesh is placed are supported rotatably by a case supporting jig, and the case is rotated in the circumferential direction so that the bottom part mesh, the cylindrical mesh, and the case can be welded easily and continuously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter manufacturing jig suitable for manufacturing a filter for removing foreign matter mixed in a fluid by using a mesh body.

[0002]

2. Description of the Related Art Generally, in a factory that manufactures cosmetics, foods, chemicals, etc., a filter is provided during the supply of raw materials, products, etc.
Foreign matter is removed by the filter. Here, as this filter, for example, there is known one in which a mesh body formed by weaving a fine wire material such as wire is formed into a bottomed cylindrical shape (bucket shape), and the mesh body is fixed in a case.

Here, the filter is composed of, for example, a case having a bottomed cylindrical shape formed of a punching plate or the like, and a bottomed cylindrical mesh body housed and fixed in the case. Is a short bottomed cylindrical bottom mesh that is arranged in contact with the bottom of the case,
It is composed of a cylindrical tubular mesh arranged in contact with the peripheral surface of the case.

When manufacturing the filter,
First, the mesh body is cut into a disk shape that is larger than the inner diameter of the case by a bending margin, and the bending margin on the outer peripheral side is manually bent to form a short bottomed cylindrical bottom mesh. Then, the mesh body is cut out into a strip shape and curved into a cylindrical shape along the inner peripheral surface of the case to form a tubular mesh. Next, the bottom mesh is accommodated in the case so as to abut the bottom, and the tubular mesh is accommodated so as to abut the tubular portion of the case. And the bottom mesh in the case,
When the tubular mesh is accommodated, the case, the bottom mesh and the tubular mesh are fixed by welding means.

[0005]

By the way, in the above-mentioned prior art, when the bottom mesh of the mesh body is formed, the bending allowance of the mesh body cut out in a disc shape is manually bent to make a short length. The bottom is formed into a cylindrical shape. However, it is difficult to manually process a mesh body formed by knitting a wire material such as wire into a desired shape, and it takes time for this bending work, and wrinkles and creases are not generated when the bending allowance is bent. It is likely to occur, and welding failure may occur between the bottom mesh and the tubular mesh, in which case there is a problem that the function as a filter cannot be exhibited.

When the case, the bottom mesh and the tubular mesh are fixed by welding means, the case is placed on a work table, and the bottom mesh and the cylindrical mesh are fixed while the case is appropriately displaced in this state. In addition, since the welding must be performed several times in the circumferential direction, the welding work takes a lot of time, and the finished state of the welding is poor, which may cause defective welding.

The present invention has been made in view of the above-mentioned problems of the prior art. The mesh body can be easily and surely processed into a desired bottomed cylindrical shape, and the mesh body and the case are securely fixed by continuous welding. It is an object of the present invention to provide a filter manufacturing jig that can be manufactured.

[0008]

In order to solve the above-mentioned problems, the filter manufacturing jig adopted by the invention of claim 1 is a state in which the inner peripheral side of a disc-shaped mesh body is sandwiched. Then, a mesh body bending jig that bends the bending margin of the mesh body protruding to the outer peripheral side to form the mesh body into a bottomed cylindrical shape, and the mesh body bending jig in a bottomed cylindrical case The case support jig rotatably supports the case when the mesh body formed by the jig is accommodated and circumferential continuous welding is performed.

With this configuration, the bending margin of the mesh body protruding to the outer peripheral side is folded while the inner peripheral side of the disc-shaped mesh body is sandwiched by the mesh body bending jig. By bending, the mesh body can be processed into a bottomed cylindrical shape, and at this time, since a portion other than the bending margin is sandwiched, it is possible to prevent wrinkles and breakage from occurring in this portion. Next, when the mesh body formed by the mesh body bending jig is housed in the case having a bottomed cylindrical shape and continuous welding in the circumferential direction is performed, the case is rotatably supported by the case support jig. As a result, the mesh body can be continuously rotated together with the case in the circumferential direction, so that the mesh body and the case can be easily continuously welded.

According to a second aspect of the present invention, the mesh body bending jig is provided with a support disc portion for supporting an inner peripheral side of the mesh body in a state where a bending margin of the mesh body is protruded, A state in which the mesh body is sandwiched between each of the supporting disc portions and another supporting disc portion that is provided so as to face the supporting disc portion and that sandwiches the mesh body between the supporting disc portion and the other supporting disc portion. By being fitted to the outer peripheral side of each supporting disc portion, the bending margin protruding to the outer peripheral side of each supporting disc portion is constituted by an annular bending portion that is bent into a cylindrical shape.

With this configuration, the mesh body is placed on the one support disk portion so that the bending margin protrudes, and the other support disk portion allows the mesh body to be separated from the one support disk portion. With the mesh body sandwiched between the two, by fitting the annular bent portion to the outer peripheral side of each supporting disc portion, it is possible to prevent wrinkles from being generated in the mesh body by each supporting disc portion, and for a short time. The bending allowance can be bent into a cylindrical shape.

According to a third aspect of the present invention, the case support jig is provided on the base and is spaced apart from the base in the left and right directions.
Left and right rotating rollers that rotatably support the case from below, and swingably provided on the base above the rotating rollers, and rotatably support the case from above. It consists of an oscillating roller.

With this structure, in the state where the case is supported from below by the rotating rollers and the swing roller is swung downward, the case is supported from above.
Since the case can be rotatably supported, the mesh body and the case can be continuously welded in the circumferential direction by rotating the case manually or automatically.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A filter manufacturing jig according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a mesh body bending jig which constitutes a filter manufacturing jig together with a case supporting jig 17 which will be described later. The mesh body bending jig 1 is a base plate 2 and a mesh which will be described later. It is composed of a presser foot 6 and a bending member 9.

Reference numeral 2 denotes a base plate of the mesh bending tool 1, which is formed in a disc shape, and is provided with an annular ring-shaped convex portion 3 projecting upward on the outer peripheral side. A circular mesh support portion 4 forming one support disc portion is formed on the inner peripheral side of the annular convex portion 3. An annular groove 5 is formed between the annular convex portion 3 and the mesh support portion 4.
Here, as shown in FIG. 2, the upper surface side of the mesh support portion 4 becomes a support surface 4A at a position slightly lower than the annular convex portion 3, and the diameter dimension of the support surface 4A is a case 16 described later. The bottom mesh 1 is larger than the inner diameter of the side plate 16B of
4 is set to be smaller than the thickness dimension.

A mesh retainer 6 is provided so as to face the supporting surface 4A of the mesh supporting portion 4, and the mesh retainer 6 is
A pressing plate 7 forming another supporting disc portion formed in a disc shape with a diameter dimension equivalent to that of the mesh supporting portion 4,
The pressing plate 7 is composed of a cylindrical pressing rod 8 extending upward from the center of the upper surface side of the pressing plate 7. The lower surface side of the pressing plate 7 holds the bottom mesh 14 between it and the supporting surface 4A of the mesh supporting section 4. It is the pressing surface 7A.

Reference numeral 9 denotes a bending member for bending the bending margin 14A of the bottom mesh 14, and the bending member 9 is
A circular plate portion 10, a circular bent portion 11 fixed to the outer peripheral side of the circular disk portion 10 and protruding downward, and a circular cylindrical support fixed to the inner peripheral side of the circular disk portion 10 and extending upward. Tube 12
And a mesh retainer 6 inside the support cylinder 12.
It is an insertion hole 13 through which the pressing rod 8 is inserted. Also,
The annular bent portion 11 is fitted in the annular groove 5 of the base plate 2, and the inner diameter dimension thereof is set to such an extent that the bottom mesh 14 can be interposed between the annular bent portion 11 and the mesh support portion 4.

Here, 14 is a bottom mesh made by weaving a fine wire material such as wire and fixed to the bottom plate 16A of the case 16, and the bottom mesh 14 is cut out into a disc shape,
The outer peripheral side has a bending margin 14A. Then, the bottom mesh 14 is processed into a short bottomed cylindrical shape as shown in FIGS. 3 and 4 by bending the bending margin 14A.

Further, 15 is a cylindrical mesh fixed to the inner peripheral surface of the side plate 16B of the case 16, and the cylindrical mesh 15 corresponds to the length dimension and the depth dimension corresponding to the inner peripheral dimension of the side plate 16B. It is cut out into a strip shape having a width dimension, and is curved in the longitudinal direction so as to form a cylindrical shape.

Reference numeral 16 indicates a case to which the bottom mesh 14 and the tubular mesh 15 are attached.
Is a bottom plate 16A formed in a disk shape from a plate material such as a punching plate, a side plate 16B extending upward from a peripheral edge of the bottom plate 16A and formed in a cylindrical shape from the punching plate, and an upper end of the side plate 16B. And a flange portion 16C that protrudes outward in the radial direction.

On the other hand, in FIG. 5, reference numeral 17 denotes a case supporting jig which constitutes a filter manufacturing jig together with the mesh body bending jig 1, and the case supporting jig 17 is a base 1 described later.
8, a rotary roller 22, and a swing roller 24.

Reference numeral 18 is a base of the case supporting jig 17, and the base 18 is a rectangular plate 1 placed on a work table (not shown).
9, a vertical plate 20 fixed on the rectangular plate 19, and an inclined frame plate 21 fixed to the upper end of the vertical plate 20 and inclined at a predetermined angle. It is formed in an L shape.

Reference numerals 22 and 22 denote a pair of rotating rollers located below the inclined frame plate 21 of the base 18 and spaced apart in the left and right directions. Each rotating roller 22 is rotatably provided. On the outer peripheral side, a fitting concave groove 22A into which the flange portion 16C of the case 16 is fitted is formed on the entire circumference.

Reference numeral 23 denotes a swing arm mounted on the upper end side of the inclined frame plate 21 so as to swing, and the swing arm 23 can be fixed at an arbitrary swing position by a stopper (not shown).

Reference numeral 24 denotes a swing roller located above each rotary roller 22 and attached to the tip end side of the swing arm 23. The swing roller 24 is positioned on the same plane as each rotary roller 22. A fitting recessed groove 24A, which is rotatably provided and on which the flange portion 16C of the case 16 is fitted, is formed on the entire outer circumference side.

The filter manufacturing jig according to the present embodiment has the above-mentioned structure. Next, a filter manufacturing procedure using the filter manufacturing jig will be described.

First, the disc-shaped bottom mesh 14 is placed on the support surface 4A of the mesh support 4 so that the bending margin 14A protrudes to the outer peripheral side. Then, after the pressing rod 8 of the mesh retainer 6 is inserted into the insertion hole 13 of the bending member 9, the retainer plate 7 of the mesh retainer 6 is pressed onto the bottom mesh 14 to form a retainer surface 7A of the retainer plate 7. The bottom mesh 14 is sandwiched between the mesh support portion 4 and the support surface 4A. In this state, the annular bent portion 11 of the bending member 9 is pressed so as to fit into the annular groove 5 of the base plate 2.

As a result, as shown in FIG. 3, the bending allowance 14A of the bottom mesh 14 protruding from the space between the pressing surface 7A of the pressing plate 7 and the supporting surface 4A of the mesh supporting portion 4 to the outer peripheral side.
Is pressed downward by the annular bent portion 11, the bottom mesh 14 can be processed into a short bottomed cylindrical shape as shown in FIG.

When the bottom mesh 14 is bent, the portion other than the bending allowance 14A is clamped between the pressing surface 7A of the pressing plate 7 and the supporting surface 4A of the mesh supporting portion 4. It is possible to prevent wrinkles and folds from occurring in the part.

Next, the bottom mesh 14 processed by the mesh bending tool 1 is inserted along the side plate 16B of the case 16, and the bottom mesh 14 is brought into contact with the bottom plate 16A, and then curved. The tubular mesh 15 is inserted along the inner circumference of the side plate 16B of the case 16.

Next, the bottom mesh 14 and the tubular mesh 1
5 and the side plate 16B of the case 16 are fixed to each other by continuous welding in the circumferential direction, the flange portion 16C of the case 16 in which the bottom mesh 14 and the tubular mesh 15 are temporarily attached is fitted to the rotary rollers 22. Fit into the groove 22A. Then, the swing roller 24 is moved through the swing arm 23.
By lowering, the fitting groove 24A of the rocking roller 24 is fitted into the flange portion 16C, and the rocking arm 23 is fixed at this position.

As a result, the case 16 is rotated by each rotary roller 2
2 and the swing roller 24 so that the case 16 is rotatably supported in the circumferential direction. Therefore, by rotating the case 16 manually or by a motor (not shown), as shown in FIG. The tubular mesh 15 and the side plate 16B of the case 16 can be easily fixed to each other by continuous welding in the circumferential direction, and a bucket filter can be manufactured.

Thus, according to the present embodiment, by simply pushing the bending member 9 toward the base plate 2, the bending margin 14A of the bottom mesh 14 is formed by the annular bending portion 11 of the bending member 9. Since it can be bent, the bottom mesh 14 can be easily processed into a short bottomed cylindrical shape,
The time required for the bending work can be shortened and the workability at the time of manufacturing the filter can be improved.

During the bending work of the bending allowance 14A, the portion of the bottom mesh 14 other than the bending allowance 14A is pressed against the pressing surface 7A of the pressing plate 7 and the supporting surface 4A of the mesh supporting portion 4.
Since it can be sandwiched between the bottom mesh 14 and the cylindrical mesh 15 to prevent welding defects, it is possible to prevent wrinkles and breaks from occurring in this part. Can be prevented, the welding operation can be made reliable, and the reliability of the filter can be improved.

Further, since the case 16 can be easily rotated by supporting the case 16 rotatably in the circumferential direction by the case support jig 17, the meshes 14 and 15 and the case 16 can be easily connected. In addition to being able to weld and shorten the welding work time,
It is possible to improve the finish of welding and prevent defective welding.

[0037]

As described above in detail, according to the first aspect of the invention, the mesh body formed into a disk shape by the mesh body bending jig is sandwiched on the inner circumference side and protruded to the outer circumference side. By bending the bending allowance of the mesh body, the mesh body can be processed into a cylindrical shape with a bottom. At this time, since parts other than the bending allowance are sandwiched, wrinkles and folds occur in this part. Can be prevented and the reliability of the filter can be improved. Next, when the mesh body formed by the mesh body bending jig is housed in the case having a bottomed cylindrical shape and continuous welding in the circumferential direction is performed, the case is rotatably supported by the case support jig. By
Since the mesh body can be continuously rotated in the circumferential direction together with the case, the mesh body and the case can be continuously welded easily and reliably, and the workability at the time of manufacturing the filter can be improved.

According to the second aspect of the present invention, the mesh body is placed on one supporting disc portion so that the bending margin protrudes, and the other supporting disc portion forms a mesh with the one supporting disc portion. By fitting the annular bent portion to the outer peripheral side of each supporting disc portion with the mesh body sandwiched therebetween, it is possible to prevent wrinkles and folds from occurring in the mesh body by each supporting disc portion. And, since the bending allowance can be bent into a cylindrical shape in a short time, it is possible to prevent the formation of a gap due to defective welding due to wrinkles or breaks formed between the mesh body and the mesh body supporting frame, The welding operation can be ensured and the reliability of the filter can be improved.

According to the third aspect of the invention, the case is rotatably supported in a state in which the case is supported from below by the rotating rollers, and the swing roller is swung downward to support the case from above. Therefore, for example, by rotating the case manually or automatically, the mesh body and the case can be continuously welded in the circumferential direction, and the welding work time can be shortened and the finished state of welding is good. Thus, the occurrence of welding defects can be prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mesh body bending jig according to an embodiment of the present invention.

FIG. 2 is an exploded cross-sectional view of a mesh body bending jig before processing a bottom mesh.

FIG. 3 is a cross-sectional view showing a mesh body bending jig in a state where a bottom mesh is being processed.

FIG. 4 is a perspective view showing a bottom mesh, a tubular mesh, and a case.

FIG. 5 is a perspective view showing a case support jig according to an embodiment of the present invention.

FIG. 6 is a perspective view showing a state in which a bottom mesh and a tubular mesh are welded to a case rotatably supported by a case support jig.

[Explanation of symbols]

 1 Mesh Body Bending Jig 4 Mesh Support Part (One Supporting Disc Part) 7 Holding Plate (Other Supporting Disc Part) 11 Annular Bending Part 14 Bottom Mesh (Mesh Body) 14A Bending Allowance 15 Cylindrical Mesh 16 Case 16A Bottom Plate 16B Side Plate 17 Case Support Jig 18 Base 22 Rotating Roller 24 Swinging Roller

Claims (3)

[Claims] 1. A mesh body formed in a bottomed cylindrical shape by bending a bending margin of the mesh body protruding to the outer circumference side while sandwiching the inner circumference side of the mesh body formed in a disc shape. When the mesh body bending jig and the mesh body formed by the mesh body bending jig are housed in a bottomed cylindrical case and continuous welding is performed in the circumferential direction, the case is rotatably supported. A jig for filter manufacturing, which is composed of a case support jig. 2. The mesh body bending jig comprises: a support disc portion for supporting the inner peripheral side of the mesh body in a state where a bending margin of the mesh body protrudes; and the support disc portion. And other supporting discs that are provided so as to face each other and that sandwich the mesh body between the one supporting disc part and each supporting disc part with the mesh body sandwiched between the respective supporting disc parts. The filter manufacturing according to claim 1, comprising a ring-shaped bent portion that bends into a cylindrical shape a bending margin protruding to the outer peripheral side of each of the support disk portions by being fitted to the outer peripheral side of the portion. Jig. 3. The case support jig includes a base, and left and right rotating rollers provided on the base separately from each other in the left and right directions to rotatably support the case from below. The filter manufacturing jig according to claim 1, further comprising a swing roller that is disposed above the respective rotary rollers and that is swingably provided on the base and that rotatably supports the case from above. Ingredient