JP2001232120A - Filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device having high performance and capable of regeneration by forming a filter element using no adhesive. SOLUTION: The tip 11 of a filter material 10 is wound with the tip 5b of the end part 5 of an end plate 2, the tip 7a of an inner cylinder 7 is held and fixed between the tip 5b part and the wall part 5a of the end plate 2 or the tip 5b of the end part 5 of the end plate 2 is wound and the tip 7a of the inner cylinder 7 and the tip 11 of the filter material 10 are held and fixed between the tip 5b part and the wall part 5a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a filter device (for example, a filter device for filtering lubricating oil of an engine or the like).

[0002]

2. Description of the Related Art As shown in FIG. 11, for example, a filter element of a lubricating oil filtering device for an engine or the like is provided with a metal wire mesh on a filter material 10 outside an inner cylinder 7 in which a perforated plate is processed into a cylindrical shape. The filter material 10 is pleated so as to cover the periphery of the inner cylinder 7, and end plates 36 and 37 are provided at both ends of the inner cylinder 7.
Is arranged, and an epoxy resin-based adhesive 39 is arranged between the flanges 36a, 37a on the outer periphery of the end plates 36, 37 and the cylinder 7 so as to be joined together with the filter material 10 to be integrated.

[0003] The filter element 35 is disposed in a filter case (not shown), and lubricating oil (hereinafter referred to as oil) is filtered through a fine mesh of the filter material 10, as shown by arrows in FIG. 11. Then, the oil enters the inner cylinder 7 through a number of inflow holes 8 provided in the inner cylinder 7, and the purified oil exits through the outflow holes 38 of the end plate 36 and is circulated again to the oil supply system.

[0004]

However, as described above, the inner cylinder 7, the filter material 10, and the end plate 3
Since an adhesive is used for joining with the layers 6 and 37, there are the following problems.

[0005] 1. Vulnerable to mechanical shock. 2. It is easily affected by heat and has poor heat resistance. 3. It is easily attacked by chemicals and solvents and has poor stability. 4. Performance degradation due to adhesive deterioration. 5. Peeling due to adhesive deterioration. 6. It cannot be recycled because it is disposable. 7. Free disposal is not possible due to environmental pollution.

When the filter element 35 is used for purifying lubricating oil in a mechanical friction portion, it is intended to remove sludge or the like generated by friction between metals, and when it is used for purifying chemicals or solvents. The purpose is to remove impurities such as dust and the like. However, if breakage or peeling occurs during use due to the above-mentioned problems, the filtering effect by the filter element 35 is drastically reduced. Has much room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a filter device which can be regenerated with high performance by using a filter element which does not use an adhesive.

[0008]

That is, the present invention comprises a filter member, a support member for supporting the filter member, and a fixing member for fixing these at their ends, and an edge of the fixing member. Is bent, and each end of the filter member and the support member is clamped and fixed inside the bent portion (hereinafter, referred to as a filter device of the present invention).
It is related to.

According to the filter device of the present invention, the edge of the fixing member is bent, and the ends of the filter member and the support member are fixed to the inside of the bent portion by clamping.
Since the connection between the fixing member and each end of the filter member and the support member is formed by sandwiching without using a special material, a structure of a filter device having stable strength can be realized. As a result, it is possible to provide a high-performance filter device that is reproducible and durable without being affected by a liquid or the like that comes into contact.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a filter element 1 used for the same application as that of FIG. 11 described above, wherein FIG.
(B) is a sectional view (omitted illustration) taken along line bb of (a).

The main components of the filter element 1 are, similarly to the example of FIG. 11 described above, an inner cylinder 7 made of a porous plate processed into a cylindrical shape and a filter material 10 made of, for example, pleated brass. An end plate 2a having an outflow hole 3 disposed at an upper portion and an end plate 2b disposed at a lower portion are connected at both ends by being sandwiched, and function in the same manner as in FIG. The feature of the element 1 different from the conventional one is that the element 1 is formed by the above-described coupling structure without using an adhesive.

That is, in FIG. 1A, the portion A is the connecting portion, and FIG. 2 shows an enlarged detail of the portion A. FIG. 2A shows the first embodiment, and FIG. 2B shows the second embodiment. Therefore, the first and second embodiments will be described below in this order.

Embodiment 1 In this embodiment, as shown in FIG. 2A, an edge 5 of a circular end plate 2a forms a wall 5a, and as shown in FIG. 10 and engages with the front end 11 of the end plate 2a.
And the front end 7a of the inner cylinder 7 located between the two is sandwiched and connected. The opposite end is connected to the end plate 2b with the same structure.

Accordingly, the filter material 10 and the inner cylinder 7 are firmly connected and fixed to the end plates 2a and 2b without using an adhesive by this connection structure. Excellent, can handle a wide range of temperatures from high to low, can improve chemical and solvent resistance by changing the material of the filter material 10, and can be formed as an excellent filter element that can be regenerated by washing and recyclable Can be. Further, it is possible to eliminate all the storage and management of the adhesive associated with the use of the conventional adhesive, and the associated capital investment and safety and health management.

FIG. 3 shows a filter element 1A according to the present embodiment, in which a connection nut 12 with an oil supply system is mounted. Further, although the other shapes are partially different from those in FIG. 1, the basic configurations and functions are the same, and the description of the configurations and functions is omitted.

This filter element 1A can be manufactured by the following process. 4 to 8 show the manufacturing process.

First, as shown in FIG. 4, the length L ₁ of the pleated filter material 10 is equal to the length L ₁ of the inner cylinder 7 with respect to the length L ₁ of the inner cylinder 7 processed to a predetermined size. L from both ends
Is formed as a bending allowance, and is wound around the outer periphery of the inner cylinder 7. Then, an end plate 2a is provided on the upper end side.
Is arranged between a vertically movable lifter 17 below the seaming machine and an upper seaming chuck 16 as shown in the figure.

The seaming machine 14 includes a base 15, a seaming chuck 16 mounted on the base 15, and a lifter 17.
And a first seaming roll 19 and a second seaming roll 23. The base 15 is rotatable using a motor (not shown) as a drive source.
Is rotatable and vertically movable, and the first and second seaming rolls 19 and 23 are arranged beside the head 16a of the seaming chuck 16 and move in the horizontal direction by a cam, thereby The vertical movement can be finely adjusted.

Next, as shown in FIG.
With the end plate 2a placed on the filter material 10 and above, these are set on the lifter 17, and then the lifter 17 is raised while rotating the base 15.
As a result, the head 16a of the seaming chuck 16 is fitted into the concave portion 6 of the end plate 2a, and the filter material 10 is pressed to both end positions of the inner cylinder 7 by the pressing force of the lifter 17. Therefore, the bending margin 1 at both ends of the filter material 10 is bent outward as shown in the figure.

Then, the first seaming roll 19, which is arranged on the side and is axially mounted on a bearing 20, is rotated by the rotating base 1.
5 (see FIG. 6), and the first step of tightening is started. Therefore, the first seaming roll 1
9 of the press contact groove 21 is located at the tip 5 of the edge 5 of the end plate 2a.
b, the entire periphery of the edge 5 is pushed and bent into a predetermined bending state while rolling. After the completion of the bending step, the first seaming roll 19 is moved to the original position as shown in FIG.

Next, as shown in FIG. 6, by operating the second seaming roll 23, the end plate 2a pressed and bent in the first step in the same manner as in the case of the first seaming roll 19 described above. Is further pressed and bent. Therefore, the pressing groove 2 of the first seaming roll 19
The filter in which the end 5b of the edge 5 of the end plate 2a that is pushed and bent by the press contact groove 24 of the second seaming roll 23 having a shape different from that of the first seam roll 23 is bent inside the edge 5 of the end plate 2a. The bending margin 1 of the material 10 is involved, and the material 10 is pressed and bent to the state shown in FIG.

Next, as shown in FIG. 7, the second seaming roll 23 is moved back to the original position, and the lifter 17 is lowered to connect the end plate 2a to the inner cylinder 7 and the filter material 10. Ends.

Next, as shown in FIG. 8, this is turned upside down so that the end plate 2a side, which has been connected as described above, is turned down, and the ends of the unconnected inner cylinder 7 and the filter material 10 on the opposite side are turned up. And set on the lifter 17, and place the end plate 2b on the upper side. Thereafter, the components are combined by the process described above with reference to FIGS. 5 to 7, and the fabrication of the filter element 1 is completed. And, as described above, since this filter element 1 is made of a strong connection structure without using an adhesive, it can withstand regular cleaning,
Can be reused.

As described above, the base 15 is rotated by the motor.
7 may be connected to the motor. In addition, the vertical movement may be performed not on the lifter 17 side but on the base 15 side.

Embodiment 2 In this embodiment, as shown in FIG. 2B, an edge 5 of a circular end plate 2a, 2b forms a wall 5a, and a tip 5b thereof is bent inward. In this state, the inner cylinder 7
In addition, the distal end side of the filter material 10 is pressed and sandwiched between the filter member 10 and the wall portion 5a of the edge portion 5 and joined.

Therefore, with this coupling structure, the filter material 10 and the inner cylinder 7 can be used as the end plates 2a, 2a without using an adhesive, as in the case of the first embodiment described above.
b is strongly bonded. Therefore, the same effect as in the first embodiment can be obtained.

FIG. 9 is a longitudinal sectional view showing a filter element 1B according to the present embodiment, which is installed in a case 28. The filter element 1B differs from the first embodiment in the structure of the end plate 31a.
The basic configuration and functions are the same, and detailed description of the configuration and functions is omitted.

However, as shown in the figure, in the body 26 of the case 30, the bottom is supported by the coil spring 29, and the upper outlet hole 32 is engaged with the engaging portion 27a of the bottom plate 27. With the gasket plate 28 fitted in the body 26, the edge 28a of the gasket plate 28 and the end 26a of the body 26 are integrated by wrapping and joined, and are non-disassembled inside the casing structure. .

In FIG. 9, reference numeral 27b denotes an inflow hole, for example, in a state where the case 30 is connected to an oil supply system.
Oil flows into the case 30 from the inflow hole 27b,
The oil that has flowed into the filter element 1B and the body 26
Through the gap 33 between the inner tube 7 and the inner wall of the inner tube 7, the water flows into the inner tube 7 from the inflow hole 8 of the inner tube 7 and flows out from the outflow hole 32 while being filtered by the filter material 10.

However, although the filter element 1B of the present embodiment is casing, the coupling structure between the filter material 10 and the inner cylinder 7 and the end plates 31a and 31b is the same as that of the first embodiment. Filter material 10
Since it does not peel off, it has excellent durability and can be used with confidence.

The manufacturing process of the filter element 1B can be performed in the same manner as in the first embodiment. However, in the first embodiment, both ends of the filter material 10 are longer than the length of the inner cylinder 7 and the bending allowance l
However, in the case of the filter element 1B of the present embodiment, the only difference from the first embodiment is that the filter material 10 and the inner cylinder 7 are formed with the same dimensions, and the other processes are the same. Therefore, description of the manufacturing process is omitted.

As described above, the filter element of the present embodiment is shown by the casing structure. However, the content of the casing may be the filter element 1A of the first embodiment.
Further, the filter element 1B of the present embodiment can be used without a casing. Further, although the filter material 10 of each of the above-described embodiments is pleated, it may be pleated, and the material may be other than brass.

According to each of the above-described embodiments, the end 5b of the edge 5 of the end plates 2a, 2b, 31a, 31b
However, a state in which the distal end 7a of the inner cylinder 7 is sandwiched between the wall of the end plate while the distal end 11 of the filter material 10 is rolled in, or a state in which the distal end 5b of the edge 5 of the end plate is rolled up. Since the filter material 10 and the inner cylinder 7 are pressure-bonded with the respective distal ends sandwiched between the filter material 10 and the inner cylinder 7, a strong connection structure can be formed.

Moreover, since no adhesive is used, even if the object to be filtered is a chemical or a solvent, it is not affected by the substance, and is excellent in heat resistance, impact resistance and peeling resistance, and maintains durability. Therefore, for example, it can be cleaned and regenerated periodically.

Therefore, the problems in the conventional filter device, namely, 1. 1. vulnerable to mechanical shock; 2. It is easily affected by heat and has poor heat resistance. 3. Easily susceptible to chemicals and solvents and poor in stability. Performance degradation due to adhesive deterioration,
5. 5. peeling due to deterioration of the adhesive; 6. It cannot be recycled because it is disposable. It is possible to eliminate the problem that free disposal is not possible due to environmental pollution and to manufacture a high-performance and high-quality filter device.

The embodiments described above can be variously modified based on the technical idea of the present invention.

For example, in the embodiment, the end plate 2
Although the edge portions 5a and 2b are entangled, it is also possible to sandwich the edge 5 in a state where the cut surface of the edge portion 5 is exposed downward without being entangled. Alternatively, the end plates 2a and 2b, the filter material 10, and the inner cylinder 7 can be crimped.

Although the filter material 10 is arranged outside the inner cylinder 7, for example, as shown in FIG.
0 may be provided inside the cylindrical body 25.

Further, the shape of the pleating process of the filter material 10 is not limited to the embodiment, but may be various shapes. For example, a shape in which the filtration area is increased by combining a plurality of pleated shapes may be used. In addition, the filter material 10 may be a plurality of layers instead of a single layer.

Further, the filter material 10 is not limited to metal, but may be a filter material made of synthetic resin such as polyester or nylon or paper.

The cross-sectional shapes of the end plate and the inner cylinder can be various shapes other than the embodiment.

[0043]

As described above, the present invention comprises a filter member, a support member for supporting the filter member, and a fixing member for fixing the filter members at their ends, and the edge of the fixing member is bent. Since each end of the filter member and the support member is pinched and fixed inside the bent portion,
Since the connection between the fixing member and each end of the filter member and the support member is formed by sandwiching without using a special material, a structure of a filter device having stable strength can be realized. As a result, it is possible to manufacture a high-performance filter device that is reproducible and has excellent durability without being affected by a liquid or the like that comes into contact with the filter device.

[Brief description of the drawings]

1A and 1B show a filter element according to an embodiment of the present invention, in which FIG. 1A is a longitudinal sectional view, and FIG. 1B is a schematic view of a section taken along line bb of FIG.

FIG. 2 is a diagram showing a coupling portion of the filter element.
It is an expanded sectional view of A section, (a) is Embodiment 1,
(B) is a diagram showing a second embodiment.

FIG. 3 is a vertical sectional view showing the filter element according to the first embodiment.

FIG. 4 is a diagram showing a manufacturing process of the filter element according to the first embodiment.

FIG. 5 is a view showing another process of manufacturing the filter element according to the first embodiment.

FIG. 6 is a diagram showing another manufacturing process of the filter element according to the first embodiment.

FIG. 7 is a diagram showing another manufacturing process of the filter element according to the first embodiment.

FIG. 8 is a diagram showing still another manufacturing process of the filter element according to the first embodiment.

FIG. 9 is a longitudinal sectional view showing a state where the filter element according to the second embodiment is casing.

FIG. 10 is a sectional view of a main part showing a modification.

FIG. 11 is a longitudinal sectional view showing a filter element according to a conventional example.

[Explanation of symbols]

1, 1A, 1B ... filter element, 2a, 2b, 3
1a, 31b: End plate, 3, 32: Outflow hole, 5
... edge, 5a ... wall, 5b, 7a, 11 ... tip, 6 ... recess, 7 ... inner cylinder, 8, 27b ... inflow hole, 10 ... filter material, 10a ... pleat, 14 ... seaming machine, 15
... Base, 16 ... Seaming chuck, 16a ... Head, 1
7 ... lifter, 19, 23 ... seaming roll, 21,
24: press-contact groove, 39: adhesive, L: length of filter material,
L ₁ … Length of inner cylinder, l… Bending allowance

Claims (1)

[Claims] 1. A filter comprising: a filter member; a support member for supporting the filter member; and a fixing member for fixing the filter member at an end portion. An edge of the fixing member is bent. A filter device in which each end of the filter member and the support member is sandwiched and fixed inside.