KR100850196B1 - Electrical discharging machine filter - Google Patents

Abstract

An electrical discharging machine filter is provided to increase filtration efficiency, maintain solid joining force of a product, extend life of the product, and further increase reliability of the product by increasing reciprocal joining force of top and bottom covers and perforated meshes for supporting filtration filters, thereby preventing separation of the top and bottom covers from the filtration filters. An electrical discharging machine filter comprises: an inner perforated mesh(20) made of a metallic material to support an inner filtration filter(22); an outer perforated mesh(24) made of a metallic material to support an outer filtration filter(26) spaced from the inner filtration filter; top and bottom covers(30,32) on which bent ends(30a,32a) and supporting end pipes(30b,32b) are formed to form an adhesion space for primarily adhere and fixing both end portions of the inner and outer filtration filters to the inner perforated mesh by applying an adhesive(28) onto an outer edge and an inner central part of the inner perforated mesh; and a cooling water injection hole(30c) formed in the top cover, wherein the top and bottom covers and the outer perforated mesh are integrally joined with each other by outer joining parts(140) with which joining end portions(142) and joining end portions(144) are joined such that the joining end portions(142) and joining end portions(144) are not separated from the outer joining parts, the joining end portions(142) being bent to extend to outer sides of both opening ends of the outer perforated mesh, and the joining end portions(144) being bent to form grooves along outer peripheries thereof with respect to the bent ends(30a,32a) such that the joining end portions(144) and the joining end portions(142) are superposed on one another.

Description

IDM Filter {Electrical Discharging Machine Filter}

The present invention relates to a cooling water filter for filtering cooling water used in a wire cut electric discharge machine, also known as an DM filter (EMD), and more particularly, to a perforated network supporting the filtration filter and an upper lower cover. By improving the coupling structure, the mutual coupling force is increased to the maximum, so that even if the supply pressure of the cooling water supplied into the filtration filter is operated above the proper pressure, separation of the upper and lower covers from the filtration filter is prevented, thereby improving the filtration efficiency. The present invention relates to an DM filter which can maintain a firm coupling force, extend the service life, and increase the reliability of the product.

In general, a wire cut electric discharge machine is a machine for processing a desired shape or cutting a workpiece while inserting and discharging the thin wire of 0.25-0.3 mm between the workpieces in a taut state. The wire cut electric discharge machine is continuously sprayed with coolant to cool the heat generated between the wire and the workpiece. At this time, since the coolant cooling the wire and the workpiece contain foreign matter such as a cutting chip by electric discharge machining, the cooling water is collected and filtered through a separate filter to be repeatedly used. Conventional prior art of such a filter is disclosed in more specifically in Korean Utility Model Registration No. 191313.

As known in the art, the DM filter 1 includes an inner perforated network 2 made of a metal material on which an inner filtration filter 3 is supported on the outside, and an outer perforated network outside of the inner perforated network, as shown in FIGS. The upper and lower parts of the upper perforated network of the metal material on which the outer filtration filter 5 is supported inwardly spaced apart from each other, and the upper and lower ends heat-bonded with an adhesive 8 to both ends of the inner and outer filtration filters. It includes a cover (6) (7), the upper cover (6) is a configuration provided with an injection hole (6c) for injecting cooling water. The adhesive 8 may be uniformly applied by a predetermined height of the bent ends 6a and 7a formed by the edges of the upper and lower covers 6 and 7, and the injection hole 6c and the support may be applied. The short pipes 6b and 7b are also bent at approximately the same height as the bent ends 6a and 7a of the upper and lower covers 6 and 7 so as not to cause any obstacle to the application of the adhesive 8.

Therefore, the DM filter 1 having the above-described structure, which is conventionally used, is supported in the longitudinal direction by the inner and outer perforated meshes 2 and 4 when the cooling water is forcibly supplied at a constant pressure through the cooling water injection hole 6c. Cooling water filtered through the filtered filter (3) (5) is forcibly discharged through the inner and outer perforated network (2) (4), and in this process fine foreign matters, such as metal chips, etc. It will be filtered out. In addition, the filtered cooling water is generally collected in a separate tank to be reused through the circulation supply system.

However, in the filtration filter (3) (5), various foreign matters accumulate in the filtration process of the cooling water, and as time goes by, such problems are inevitably intensified due to the structure of the filter. Therefore, even though the coolant supplied to the inside of the filter is supplied at a constant pressure (generally about 3 kg / cm 3), various foreign matters accumulated in the filter 3 and 5 lower the filtration capacity and at the same time smoothly discharge the coolant. As it is not supported, the filtration pressure beyond the proper supply pressure of the cooling water is forced inside the filter. This overload action inside the filter will significantly impair the filtration capacity, such as deformation of the filter, or the upper or lower cover from the inner and outer perforated network 2 (4) and the filtration filter (3) (5). 6) (7) is forcibly peeled off, causing a serious problem of detachment. In particular, the forced separation of the upper and lower covers, together with the problem that the cooling water overflows and contaminates the surroundings, causes loss of filtration capacity, shortens the service life of the product and at the same time causes a significant adverse effect on the distrust or reliability of the product. do.

The conventionally used DM filter 1 has the upper lower cover 6, 7 being forcibly separated by the action of excessive filtration pressure during filtration of the coolant due to the problem of the assembly method, as described below. The severity is significant in that the phenomenon frequently occurs. That is, the conventional DM filter 1 has an inner and outer perforated nets 2 and 4 by an adhesive 8 applied to the bottom of the upper lower cover 6 and 7 as shown in FIGS. 1 to 3. ) And the filtration filter (3) (5) is integrally connected and assembled only by the adhesive force of the adhesive (8) applied to the upper and lower cover (6) (7). For example, the upper or lower cover 6, 7 is slowly heated with the adhesive 8 for a predetermined time (about 40 minutes) with respect to the inner and outer perforated bodies 2, 4 and the filtration filter 3, 5. Although the adhesive is fixed and fixed sequentially through the process of solidifying, when all the working conditions such as the heating temperature of the adhesive does not match during the solidifying process of the adhesive 8 irrationally act, the adhesive 8 is the upper lower cover 6 The problem of peeling off the bottom surface 6-1 (7-1) of (7) cannot be avoided. However, it is very difficult and difficult for the worker to check each one in the assembling process of the product whether or not the above-described working conditions are met. However, even though the adhesive state is poor, the product is still in circulation.

Therefore, the conventional DM filter 1 is used by the upper and lower cover 6 only by the inner and outer perforated network (2) (4) and the filtration filter (3) (5) via the adhesive (8). 7) When excessive pressure is generated due to the cooling water supply inside the filter because the bonding force is maintained, the adhesive 8 cannot withstand this and the bottom surface 6-1 of the upper or lower cover 6, 7 The problem of forcibly peeling off and separating from (7-1) cannot be avoided, and efforts are currently being made in the industry to improve this problem.

The present invention has been invented to solve the above problems of the conventional filter, the present invention improves the coupling structure of the filter that is conventionally used, the upper and lower parts with respect to the inner and outer perforated network and the filter by the excessive pressure due to the filtration of the cooling water It is an object of the present invention to provide a DM filter that can completely solve the problem that the cover is forcibly separated and separated to secure the use stability and reliability of the product, and to increase the service life significantly.

According to the DM filter of an embodiment of the present invention for achieving the above object, the inner perforated mesh of the metal material for supporting the inner filtration filter, and the metal material for supporting the outer filtration filter disposed to be spaced apart from the inner filtration filter The outer perforated network, the outer edge and the inner central portion of the inner perforated bent end and the support end pipe is bent to provide an adhesive space to apply the adhesive to the primary end of the outer filtration filter first adhesive fixing The upper cover and the outer perforated body is configured to include a coolant injection hole formed by the lower cover and the upper cover, the coupling end is bent to extend to the outside of both open ends of the outer perforated network, the coupling Grooves are formed along the outer circumference with respect to the bend end so as to overlap with the ends The bent coupling end portion is configured to be integrally supported by the configuration of the outer coupling portion that is coupled to be supported so as not to be separated from each other.

According to the present invention of the above embodiment, the coupling end constituting the outer coupling portion is configured to be integrally coupled to each other by a curling or seaming coupling method, or integrally coupled to each other by a welding method In this case, the welding method may be any one of seam welding and spot welding.

In addition, according to the configuration of the above embodiment, the DM filter, it is preferable to further comprise an inner coupling for coupling the inner side of the upper cover and the inner perforated network integrally.

The inner coupling part includes a groove support part extended to be integrally bent with the support end pipe of the upper lower cover, and a discharge hole formed in the groove support part, and is inserted into and coupled to a hole formed through the center of the groove support part. And nuts.

According to the EDM filter of another embodiment of the present invention for achieving the above object, the internal perforated mesh of the metal material for supporting the internal filtration filter, and the metal material for supporting the external filtration filter disposed to be spaced apart from the internal filtration filter It is made of an outer perforated network, the bent end and the support end pipe is bent to form an adhesive space for applying the adhesive to the outer edge and the inner central portion of the inner perforated network primarily by fixing both ends of the inner outer filter filter In the configuration comprising a cooling water injection hole formed by the upper cover and the upper cover, the inner side of the inner filter net and the upper lower cover, the horizontal extension extending horizontally through the center portion with respect to the support end pipe of the upper lower cover And a plurality of discharge holes and holes respectively supported on the horizontal extension portion. The penetrating support plate and the inner coupling portion consisting of a long bolt and a nut which are installed through the hole of the support plate are integrally configured, and the outer side of the outer filter net and the upper lower cover is the outer filter net and the upper filter. The lower cover is configured to be integrally coupled to each other by the configuration of the outer coupling portion which is coupled and supported so as not to be separated from each other.

According to the embodiment, the outer coupling portion, the coupling end vertically and horizontally bent from each bent end so as to extend further upward than the upper surface of the upper lower cover, and vertically extended from the external perforated network in contact with the coupling end And horizontally bent coupling ends, wherein each coupling end is preferably configured to be integrally coupled to each other by a curling or seaming coupling method.

In addition, according to the embodiment, the outer coupling portion is composed of the coupling end portion is formed to be vertically bent to extend from the external perforated network to be mutually connected to the outside of each bending end to extend further upward than the upper surface of the upper lower cover, Coupling ends are preferably integrally coupled to each other by a bending process inward to be in close contact with each other on the upper surface of the upper lower cover.

In addition, according to the embodiment, the outer coupling portion, the coupling end is vertically bent from each bent end to extend further upward than the upper surface of the upper lower cover, and vertically extended from the external perforated network in contact with the coupling end It is preferably made of a coupling end that is bent, and each coupling end is preferably configured so as not to be separated from each other by seam welding or spot welding.

According to the EDM filter of another embodiment of the present invention for achieving the above object, the inner perforated mesh of the metal material for supporting the inner filtration filter, and the metal material for supporting the outer filtration filter disposed to be spaced apart from the inner filtration filter The outer periphery of the bent, the outer edge and the inner central portion of the inner perforated bend and the bent end and the support end pipe for providing an adhesive space for the first adhesive bonding of both ends of the inner filtration filter by applying an adhesive In the DM filter having the upper cover formed and the cooling water injection hole formed by the upper cover, the inner lower cover and the inner perforated network, both ends of the inner perforated network that is penetrated and supported by the support end pipe of the upper cover An extended end extending upward from an upper surface of the upper lower cover with respect to The extension end is coupled by the configuration of the inner engaging portion which is latched to be in close contact with the upper surface of the upper lower cover, the outer side of the upper lower cover and the outer perforated network, the outer filter network and the upper lower cover is not separated from each other It is coupled to each other integrally by the configuration of the outer coupling portion that is coupled to support.

The present invention improves some of the structure of the conventional DM filter configuration, and at the same time the primary adhesion of the inner and outer filtration filter by the adhesive at the same time to the inner or outer and inner and outer sides of the inner and outer filter mesh constituting the filter and the upper lower cover simultaneously By integrally combining and forming each other by molding bending process of various methods, it is possible to stably fix and fix the filter, so that the internal and external perforated network, the filtration filter, and the upper cover are forcibly separated and separated by excessive pressure action due to cooling water filtration. Can be completely solved to ensure the stability and reliability of the use of the product, and the service life can be significantly increased, thereby providing high quality and price competitiveness of the product. have.

Hereinafter, each preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, the DM filter 10 according to the first embodiment of the present invention is illustrated in FIGS. 4 to 6.

Referring to these drawings, the DM filter 10 according to the first embodiment basically includes an internal perforated network 20 made of a metal supporting the internal filtration filter 22, and the internal filtration filter 22. And an outer perforated mesh of metal material 24 for supporting the outer filtration filter 26 disposed to be spaced apart from each other, and applying an adhesive 28 to the outer edge and the inner central portion of the inner perforated mesh 20, Upper lower cover 30 formed with bent ends 30a and 32a and support end pipes 30b and 32b for providing an adhesive space for primarily bonding and fixing both ends of the inner and outer filtration filters 22 and 26. 32) and the cooling water injection hole (30c) formed by the upper cover (30).

The outer periphery of the outer perforated network 24 and the upper lower cover 30, 32 is integrally configured by the configuration of the outer engaging portion 40.

As shown in FIG. 4, the outer coupling portion 40 is bent to extend the coupling end portion 42 to the outside of both open ends of the external perforated network 24, and the upper lower cover 30. As the edge of the 32, the groove 44 is formed along the outer circumference with respect to the bent ends 30a and 32a, and the coupling end 44 is integrally bent so as to overlap with the coupling end 42. Is formed. Each of the coupling ends 42 and 44 is configured to be integrally coupled to each other by a curling coupling method as shown in FIG. 5.

Looking at the assembly state of the DM filter 10 according to the configuration of the first embodiment described above, first interposing the inner filtration filter 22 to the outside of the inner perforated network 20, and the inside of the outer perforated network 24 The external filter nets 26 are interposed therebetween. In this state, a predetermined amount of adhesive 28 is applied to the bottom of the upper or lower cover 30, 32, for example, the bent ends 30a and 32a, and then the inner and outer perforated meshes 20 and 24 are applied. And the inner and outer filtration filters 22 and 26 are sequentially positioned on the upper or lower cover 30 and 32 to which the adhesive 28 is applied, and then the upper or lower cover 30 and 32 to a constant temperature. The adhesive 28 is slowly solidified by heating onto an unillustrated heating plate that is being heated. Then, at this time, the adhesive 28 penetrates between both ends of each filtration filter 24 and 26 through a heat solidification process, and is primarily adhesively fixed to the upper and lower covers 30 and 32. This process is the same as the assembly process of the conventional filter. In the above assembly process, the inner perforated network 20 is stably supported by the support end pipes 30b and 32b of the upper and lower covers 30 and 32 to prevent flow.

As described above, the grooves formed by the edges of the upper lower covers 30 and 32 and the inner and outer filtration filters 22 and 26 are firstly fixed by the adhesives 28 and then the upper lower covers 30 and 32. Position the processing jig (not shown) using 43 and then the ends of the outer perforated network 24 and the respective coupling ends 42 and 44 of the upper lower cover 30 and 32 are integrally positioned. By the configuration of the outer coupling portion 40 to be rolled by a curling (curling) coupling method is coupled so as not to be separated from each other.

On the other hand, the outer coupling portion 40, in addition to the above-mentioned curing coupling method, if necessary, the end of the outer perforated network 24, as shown enlarged in (a) (b) (c) of FIG. The coupling end portion 42 is formed to be bent to extend to and the coupling end portion 44 of the upper lower cover 30, 32 is formed to be bent to overlap with the coupling end portion 42 in a seaming coupling manner Also by the configuration of the outer coupling portion 40-1 made may be coupled to be fixed integrally with each other.

The structure in which the coupling end portion 42 and the coupling end portion 44 are coupled in a seaming coupling manner is first bent to extend the respective coupling end portions 42 and the coupling end portions 44 as shown in FIG. To form, and then to the curing process as shown in Figure 7 (b), and again to combine the coupling end portion 42 and the coupling end portion 44 of the cured portion as shown in Figure 7 (c) again by seaming coupling method. Thereby, the outer coupling part 40-1 of the seaming coupling | bonding form is formed.

Therefore, the DM filter 10 according to the first embodiment is first adhesive fixed with an adhesive 28, and both ends of the outer perforated network 24 and the upper lower cover 30, 32 are cured or shimmed. As it is firmly secured in the secondary by the outer coupling part 40 (40-1), which is integrally coupled by a method, the inner and outer filtration filters and the upper and lower covers are conventionally supported only by an adhesive. It is possible to maintain a stable bonding force.

Therefore, according to the DM filter 10 according to the combination of the present invention, even if excessive pressure is generated in the filter during the filtration process of the coolant supplied through the coolant injection hole 30c of the upper cover 30, the filter Each of the constituent members constituting the above, such as the upper lower beaker 30, 32, the inner filtration filter 22, 26 and the inner filtration network 20, 24 is integrally bonded to each other and supported by these Forced separation is prevented, in particular, by the coupling configuration of the outer coupling portion 40, 40-1, the adhesive force of the adhesive 28 is weakened, so as to remove from the bottom surface of the upper lower cover 30, 32 Even if the adhesive is peeled off, the upper and lower covers 30 and 32 can be reliably prevented from being separated and separated from the filtration filters 22 and 26. In addition, the cooling water in which the foreign matter is filtered by the filtration filters 22 and 26 is smoothly discharged to the outside through the inner and outer perforated networks 20 and 24.

The coupling ends 44 and 42 constituting the outer coupling portions 40 and 40-1 of the DM filter 10 according to the first embodiment are coupled in a curing or seaming coupling manner, in this case, FIG. 4 to 7 illustrate a form in which the coupling portion of the curry or seaming shape is processed outward, but the present invention is not limited thereto and may be cured or seaming inward.

A second embodiment of the present invention is shown in FIG. Specifically, the DM filter 100 of the second embodiment has the same basic configuration as the DM filter 10 of the first embodiment shown in FIGS. 4 to 6, and has the center of the upper lower covers 30 and 32. The configuration of the inner coupling portion 50 is the same except for the additional configuration. For convenience of description, the same components as in the first embodiment will be described with the same reference numerals, and detailed description thereof will be omitted.

In the DM filter 100 according to the second embodiment, the inner coupling part 50 is a groove support part formed to be integrally bent with the support end pipes 30b and 32b of the upper lower cover 30 and 32. 52 and a long bolt 58 and a nut including a discharge hole 54 formed in the groove support part 52, and fitted to and interlocked with the hole 56 formed through the center of the groove support part 52. 59).

Therefore, the DM filter 100 of the second embodiment is configured to be bonded as described above, thereby basically performing a primary bonding by the adhesive 28, and at the same time in addition to the configuration of the outer coupling portion 40 As the outside and the inside of the upper and lower cover 30, 32 and the inner and outer perforated network 20, 24 are simultaneously integrally coupled and supported by the inner coupling portion 50, which is configured to be coupled in a bolt and nut manner, Compared to the configuration of the DM filter 10 of the first embodiment, which is supported only by the outer coupling part 40, the coupling device has a more stable and stronger coupling force.

In addition, according to the configuration of the DM filter 100 according to the second embodiment, the cooling water in which the foreign matter is filtered by the filtration filters 22 and 26 is connected to the inner coupling part 50 including the external perforated network 24. It is to be smoothly discharged to the outside through a plurality of discharge holes 54 formed in the groove supporting portion 52 to constitute.

A third embodiment of the present invention is shown in FIG. Specifically, the DM filter 200 of the third embodiment has the same basic configuration as the DM filter 10 of the first embodiment shown in FIGS. 4 to 6, but has an outer coupling part 40-2. This is essentially the same except for the configuration that is joined by a welding method rather than a curing or seaming process joining method. The same configuration as the first embodiment will be described with the same reference numerals, and detailed description thereof will be omitted for convenience.

The configuration of the outer engaging portion 40-2 will be described in more detail. The coupling end portion 42 provided at both ends of the external perforated network 26 and the amount of the upper lower cover 30 and 32 are provided. Coupling end portion 44 formed to overlap the end portion is a configuration in which the parts overlapping each other by the mutual welding method, more specifically seam welding (spot welding) or spot welding (spot welding) is integrally bonded and fixed.

In this way, the upper end cover 30, 32 and the coupling end 42, 44 of the outer perforated network 24 by the outer coupling portion (40-2) bonded by a welding method to manufacture the product more quickly Production is possible. Here, even if the outer coupling portion 40-2 is formed by the welding method, a gap with the outer filtration filter 26 is formed by the groove 43 provided with the upper lower cover 30, 32. By the heat of welding, the external filtration filter 26 does not burn at all.

A fourth embodiment of the present invention is shown in FIG. In the fourth embodiment of the DM filter 300, the configuration of the outer coupling part 40-2 by the welding method is basically the same as in the third embodiment of the DM filter 200 illustrated in FIG. 9. However, the configuration of the inner coupling portion 50 as shown in FIG. 8 is further coupled to the center of the upper lower covers 30 and 32.

In the fourth embodiment, the configuration of the inner coupling portion 50 is the same as already described in the description of the second embodiment shown in FIG. 8, so that description thereof will be replaced, and the same reference numerals are used for the same configuration. Will be explained.

Accordingly, the DM filter 300 of the fourth embodiment is configured to be coupled as described above, so that the inner and outer filtration filters 22 and 26 are basically formed by the adhesive 28 with respect to the upper and lower covers 30 and 32. The outer and inner coupling portions 40- where the adhesion is made first, and the outer and inner portions of the upper lower cover 30, 32 and the inner and outer perforated meshes 20, 24 are welded and bolted nut coupled. 2) (50) by being simultaneously supported by the bond will have a more stable and strong bonding force.

11 to 19, the outer coupling parts 140, 140-1, 140-2, 140-3 and 240 are formed by the configuration of the inner coupling parts 150 and 250 and by various molding bending processes. The DM filters 400, 500, 600, 700 of the fifth to seventh embodiments are shown. Hereinafter, these embodiments will be described in more detail.

First, the DM filter 400 according to the fifth embodiment of the present invention will be described with reference to FIG. 11. In describing the DM filter 400 of the fifth embodiment, the same components as those of the first to fourth embodiments will be described with the same reference numerals, and detailed description thereof will be omitted.

Referring to FIG. 11, the DM filter 400 according to the fifth embodiment basically includes an internal perforated mesh 20 made of metal supporting the internal filtration filter 22, and the internal filtration filter 22. It consists of a metal outer perforated network 24 for supporting the outer filtration filter 26 spaced apart, the outer edge and the inner central portion of the inner perforated network 20 by applying an adhesive 28 to the inner Upper lower cover 30 having bent ends 30a and 32a and support end pipes 30b and 32b formed to provide an adhesive space for first-fitting and fixing both ends of the outer filtration filters 22 and 26. (32) and the cooling water injection hole (30c) formed of the upper cover 30 is formed, the inner and outer filtration mesh 20, 24 and the inner and outer cover of the upper lower cover (30) (32) The inner coupling portion 150 and the outer coupling portion 140 are configured to be integrally coupled to each other.

The inner coupling part 150 has horizontal extensions 30b-1 and 32b-1 extending horizontally so that the central portion penetrates the support end pipes 30b and 32b of the upper lower cover 30 and 32. ) And a support plate 152 which is supported on the horizontal extension portion and has a plurality of discharge holes 154 and a hole 156 penetrated to the center, and penetrates the hole 156 of the support plate 152. It consists of a long bolt 158 and a nut 159 to be installed.

The discharge hole 154 formed as the support plate 152 is illustrated in FIG. 12, but is not limited thereto. If the structure is capable of performing the same function, the discharge hole 154 may be formed in various ways including a mesh plate structure in which the discharge hole 154 is formed innumerably. Recruitment of is possible.

And, the outer coupling portion 140, the coupling end portion 144 that is vertically and horizontally bent from each bent end (30a, 32a) to extend further upward than the upper surface of the upper lower cover (30, 32), The coupling end 144 consists of coupling ends 142 which are vertically and horizontally bent to extend from the external perforated network 24 to be connected to each other, and the coupling ends 144 and 142 are coupled to each other in a curling manner. do.

In the configuration of the outer coupling portion 140, each coupling end portion 144, 142 is formed to be bent to extend upwardly than the upper surface of the upper lower cover 30, 32 is the first to fourth embodiments In, to replace the structure of the groove 43. That is, by forming the respective bending end portions 144, 142 to be extended to the upper side than the upper surface of the upper lower cover 30, 32, it is possible to secure the working space of the jig for curry processing, thereby To reduce the bending work for forming the groove 43, as in the fourth embodiment, while providing a technical advantage that the curing coupling operation of each coupling end 144,142 is possible.

On the other hand, in the configuration of the outer coupling portion 140 coupled by the curling method, the coupling end portion 144, 142 to be cured is to be curled (curling) to the outside as shown in enlarged in FIG. In addition, as shown in FIG. 13, it may be cured (curling) to the inside and may be mutually coupled.

Therefore, according to the DM filter 400 of the fifth embodiment of the present invention, the inner filtration filter 22 and the outer filtration filter 26 are basically formed by the adhesive 28 of the upper lower cover 30, 32. Bonding is made primarily with the bottom surface, and at the same time the inner end and the outer end formed with the supporting end pipes (30b, 32b) and the coupling end (144, 142) is coupled to the inner and outer coupling parts (150, 140) Due to the fixed and integrally coupled to each other, the filter can be maintained firmly and stably the overall binding force, and through the maintenance of the stable bonding force of the filter, even if a pressure above the appropriate pressure is applied to the inside of the filter, the internal and external filtration filter ( It is possible to surely prevent the problem that the 22 and 26 and the upper and lower covers 30 and 32 are separated from each other.

In addition, in forming the inner coupling part 150, unlike the second and fourth embodiments, the support plate 152 is bent to extend from the support end pipes 30b and 32b of the upper lower covers 30 and 32. The inner coupling part 140 is constructed by mounting the bolts 158 on the horizontal extension parts 30b-1 and 32b-1 and then fixing the other with the nut 159. Simple and stable disassembly and assembly are possible.

As a result, the technical advantages of the above-described embodiments can greatly increase the productivity of the product, and this improvement in productivity can act as a factor for lowering the price of the product to provide consumers with high quality while providing a low price. Due to the high price competitiveness compared to the filter products used in the prior art.

On the other hand, in the fifth embodiment of the present invention, the coupling end portions 144, 142 constituting the outer coupling portion 140, (a) (b) (c) and FIG. As shown in the enlarged view may be modified in the form of the outer coupling portion (140-1) is coupled in a seaming (seaming) processing manner, of course. The configuration of the outer coupling part 140-2 coupled by the seaming method is as described above with reference to FIG. 7 in the first embodiment of the present invention.

That is, as shown in FIG. 14A, the coupling end portions 144 and the coupling end portions 142 are vertically and horizontally extended upward from the bent ends 30a and 32a of the upper lower covers 30 and 32. It is bent, and then the first cured end thereof as shown in (b) of FIG. 14, and seaming again the coupling end 144 and the coupling end 142 of the cured part as shown in FIG. 14 (c) again. The outer coupling portion 140-1 of the seaming coupling type is formed by coupling in such a manner.

 The outer coupling portion 140-10 coupled in the seaming process may be configured to the outside as illustrated in FIG. 14C, and may also be configured to the inside as illustrated in FIG. 15. .

A sixth embodiment of the present invention is shown in FIG. Compared to the DM filter 400 of the fifth embodiment, the DM filter 500 of the sixth embodiment has the same configuration as the inner coupling part 150 and differs only in the configuration of the outer coupling part 140-2. The same components as in the fifth embodiment will be described with the same reference numerals, and detailed description thereof will be omitted.

Referring to FIG. 16, in the DM filter 500 according to the sixth embodiment of the present invention, the outer coupling part 140-2 extends further upward from the upper surface of the upper lower cover 30, 32. The coupling end portion 142 is vertically bent to extend from the outer perforated network 24 to be in contact with the outside of each bending end 30a, 32a, the coupling end 142 is the upper lower cover ( 30) is made by bending inwards to be in close contact with each other on the upper surfaces of the 32, and the upper lower cover 30 and the external perforated network 24 are not separated from each other by the above-described bending coupling structure. It is to be configured to be integrally combined.

By configuring the DM filter 500 according to the sixth embodiment of the present invention as described above, as in the fifth embodiment, the mutual coupling force between the constituent members constituting the filter is significantly increased, and the outer coupling portion 140- 2) is made by a bending process, it becomes possible to implement the coupling configuration of the coupling end 142 more simply.

A seventh embodiment of the present invention is shown in FIG. Compared to the DM filters 400 and 500 of the fifth and sixth embodiments, the DM filter 600 of the seventh embodiment has the same structure as the inner coupling part 150 and the outer coupling part 140-3. Only different components will be described as different from the configuration of.

In the DM filter 500 according to the seventh embodiment of the present invention, the outer coupling parts 140-3 are each bent end 30a so as to extend upwards than the upper surfaces of the upper lower covers 30 and 32. A coupling end portion 144 vertically bent from 32a and a coupling end portion 142 vertically bent to extend from an external perforated network 24 to be in contact with the coupling end portion 144. The coupling end portions 144 and 142 are configured to be welded to each other by overlapping portions protruding to the upper surfaces of the upper lower covers 30 and 32.

The coupling ends 142 and 144 coupled by the welding method may be variously welded, but most preferably, the joint ends 142 and 144 may be welded by seam welding or spot welding. By the above configuration, the upper lower cover 30, 32 and the external perforated network 24 are integrally coupled so as not to be separated from each other.

Therefore, by configuring the DM filter 600 according to the seventh embodiment of the present invention as described above, as in the fifth and sixth embodiment, due to the configuration of the inner outer coupling parts 150 and 140-3, The mutual coupling force between the constituent members constituting the stiffening not only is remarkably increased, but also the outer coupling part 140 is coupled to each other by a seam welding or spot welding method, so that coupling of the coupling ends 142 and 144 is performed more simply and quickly. It becomes possible.

An eighth embodiment of the present invention is illustrated in FIGS. 18 and 19. The DM filter 700 of the eighth embodiment has the same basic member configuration as that of Peter when compared to the DM filters 400, 500, 600 of the fifth to seventh embodiments. However, the configuration of the inner coupling portion 250 is different, and the configuration of the outer coupling portion 240 is made of a coupling method that is cured outward or inward as illustrated in FIGS. 18 and 19. In addition, although not shown in the drawings, the configuration of the outer coupling portion other than the above-mentioned curry coupling structure may be employed any number. For example, seaming, bending, and welding coupling methods may be variously applied, such as the outer coupling parts 140-1, 140-2, and 140-3 of the fifth to seventh embodiments.

18 and 19, the DM filter 700 according to the eighth embodiment of the present invention basically includes an inner perforated network 20 made of a metal supporting the internal filtration filter 22, and the internal filtration. It consists of a metal outer perforated network 24 for supporting the outer filtration filter 26 spaced apart from the filter 22, the outer edge and the inner central portion of the inner perforated network 20, the adhesive 28 The bent ends 30a and 32a and the support end pipes 30b and 32b are bent to form an adhesive space for firstly bonding and fixing both ends of the inner and outer filtration filters 22 and 26 by In the configuration comprising a lower cover 30, 32 and the cooling water injection hole (30c) formed by the upper cover 30,

 The upper lower cover 30, 32 and the inner perforated network 20, the inner perforated network 20 of the upper end cover 30, 32 of the support end pipes (30b, 32b) of the support Extension ends 20a are formed at both ends to extend upwards from the upper surface of the upper lower cover, and each of the extension ends 20a is bent so as to be in close contact with the upper surfaces of the upper lower covers 30 and 32. Being coupled by the configuration of the inner coupling part 250,

The upper lower cover 30, 32 and the outer perforated network 24 is bent from each bent end (30a, 32a) so as to extend further upward than the upper surface of the upper lower cover (30) (32) Combination end 144 and the coupling end 144 is formed of a coupling end 142 bent to extend from the external perforated network 24 to be in contact with each other, the respective coupling end 144, 142 is a variety of It is a configuration that is integrally supported so as not to be separated from each other by the configuration of the outer coupling portion 240 of the mutual bending process in a manner.

In the configuration of the inner coupling portion 250 to be bent, as shown in FIGS. 18 and 19, the upper end cover 30 and the upper end cover 20a of the inner perforated mesh 20 are cured by the curing process. Although only the example configured to be closely attached to the upper surface of the) is shown, the curing configuration described above, of course, although not shown in the drawings, seaming and banding may be employed in various ways, such a processing method has already been described above Same as the examples.

In addition, the outer coupling portion 240 that is formed in the eighth embodiment of the present invention, as illustrated in Figs. As described above, the outer coupling parts of the embodiments shown in the fifth to seventh embodiments, for example, the seaming method 140-1, the banding method 1402, the welding method 140-3, and the like are variously employed. It can be done.

Therefore, by configuring the DM filter 700 according to the eighth embodiment of the present invention as described above, as in the fifth to seventh embodiments, the filter is configured due to the configuration of the inner outer coupling parts 250 and 240. It is to be possible to maintain a mutually stable coupling force between the constituent members.

As described above, according to the DM filters 400, 500, 600, and 700 of each embodiment illustrated in FIGS. 5 to 8 of the present invention, the upper lower covers 30 and 32 and the inner and outer filtration filters ( Both ends of the upper and lower ends of the upper and lower outer covers 30 and 32 and the inner and outer perforated meshes 20 and 24 are fixed to both ends of the upper and lower ends of the upper and lower ends of the upper and lower ends. 150, 250, and the outer coupling portion 140, 140-1 (140-2) (140-3, 240) can also be configured to be integrally coupled to each other, so that always a strong bonding force It will be possible to maintain.

Although the present invention has been described with reference to the accompanying drawings, many modifications and changes may be made without departing from the scope of the following claims and, of course, they are within the technical scope of the present invention. something to do.

1 to 3 are views showing a conventional filter structure,

1 is a process chart showing a manufacturing process of a conventional filter,

2 is a side cross-sectional view showing the filter structure manufactured by FIG.

3 is a cross sectional view taken along the line A-A of FIG.

4 to 6 are views showing the filter structure according to the first embodiment of the present invention.

4 is a side cross-sectional view of the outer coupling before coupling;

5 is a side cross-sectional view of the coupling in the state that the outer coupling is completed in the state of Figure 4,

6 is a plan view of FIG. 5.

Figure 7 (a) (b) (c) is an excerpt side cross-sectional view for explaining the process of coupling the outer coupling portion according to the seaming coupling method according to the present invention.

8 is a cross-sectional side view of the combined state of the filter according to the second embodiment of the present invention.

9 is a cross-sectional side view of the coupling state of the filter according to the third embodiment of the present invention.

10 is a cross-sectional side view of the filter in accordance with a fourth embodiment of the present invention.

11 is a cross-sectional view of the combined state of the filter according to the fifth embodiment of the present invention.

12 is a perspective view showing the structure of the support plate according to the present invention.

13 is an excerpt side cross-sectional view showing another modified example of the outer coupling portion in the filter configuration according to the fifth embodiment of the present invention.

Figure 14 (a) (b) (c) is an excerpt side cross-sectional view for explaining a process of seaming the outer coupling portion according to the present invention to the outside.

FIG. 15 is an excerpted side cross-sectional view of the outer coupling part of the state in which the outer coupling part is shimmed inward.

16 is a cross-sectional side view of a filter in accordance with a sixth exemplary embodiment of the present invention.

17 is a cross-sectional side view of the combined state of the filter according to the seventh exemplary embodiment of the present invention.

18 and 19 are cross-sectional views of the coupled state of the filter according to the eighth embodiment of the present invention.

 <Description of the symbols for the main parts of the drawings>

10,100,200,300,400,500,600,700: IDM filter

20, 24: internal external perforated network 20a: extension end

22, 26: internal filtration filter 28: adhesive

30, 32: upper lower cover 30a, 32a: bend end

30b, 32b: support end pipe 30b-1, 32b-1: horizontal extension part

30c: cooling water injection hole

40, 40-1, 40-2, 140, 140-1, 140-2, 140-3, 240: outer coupling

42, 44, 142, 144: coupling end 43: groove

50,150,250: inner coupling 52: groove support

54,154: outlet 56,156: hole

58,59,158,159: long bolt and nut 152: support plate

Claims (15)

 To the inner perforated network 20 of the metal material for supporting the inner filtration filter 22 and the outer perforated network 24 of the metal material for supporting the outer filtration filter 26 disposed to be spaced apart from the inner filtration filter 22. It is made, the outer edge and the inner central portion of the inner perforated network 20 by applying an adhesive 28 to provide an adhesive space for the primary adhesive fixing of both ends of the inner outer filter 22, 26 EDM is provided with a cooling water injection hole (30c) formed of the upper bottom cover 30, 32 and the upper cover 30, the bent end 30a (32a) and the support end pipe (30b, 32b) is bent In the filter, The upper lower cover 30, 32 and the external perforated network 24, the coupling end portion 42 is formed to be bent to extend to the outside of both open ends of the external perforated network 24, the coupling end portion 42 The outer coupling portion 40 (combined and supported so that the coupling end portions 44, which are bent so as to form grooves 43 along the outer circumference with respect to the bent ends 30a and 32a so as to overlap with each other, are not separated from each other) 40-1) The die filter characterized in that the integrated support by the configuration of (40-2). The method of claim 1, The coupling end portion (42) (44) of the outer coupling portion (40), the DM filter, characterized in that configured to be integrally coupled to each other by a curling (curling) processing method. The method of claim 1, The coupling end portion (42) (44) of the outer coupling portion (40-1), the DM filter, characterized in that configured to be integrally coupled to each other by the seaming (seaming) processing method. The method of claim 1, The coupling ends 42 and 44 constituting the outer coupling part 40-2 are integrally coupled to each other by a welding method, and the welding method is seam welding or spot welding. EDM filter, characterized in that any one of. The method according to any one of claims 1 to 4, The DM filter, the DM filter further comprises an inner coupling portion (50). The method of claim 5, The inner coupling portion 50, the groove support portion 52 extending to be integrally bent with the support end pipes 30b, 32b of the upper lower cover 30, 32, and the discharge formed in the groove support portion 52 And a long bolt (58) and a nut (59), each of which includes a ball (54) and is fitted into and coupled to a hole (56) formed through the center of the groove support (52). To the inner perforated network 20 of the metal material for supporting the inner filtration filter 22 and the outer perforated network 24 of the metal material for supporting the outer filtration filter 26 disposed to be spaced apart from the inner filtration filter 22. It is made, the outer edge and the inner central portion of the inner perforated network 20 by applying an adhesive 28 to provide an adhesive space for the primary adhesive fixing of both ends of the inner outer filter 22, 26 EDM is provided with a cooling water injection hole (30c) formed of the upper bottom cover 30, 32 and the upper cover 30, the bent end 30a (32a) and the support end pipe (30b, 32b) is bent In the filter, The inner side of the inner filter net 20 and the upper lower cover 30, 32 is formed to extend horizontally through the central portion with respect to the support end pipes (30b, 32b) of the upper lower cover (30, 32). A horizontally extending portion 30b-1 and 32b-1, a supporting plate 152 which is seated and supported by the horizontally extending portion, and has a plurality of discharge holes 154 and holes 156 therethrough; It is integrally coupled by the inner coupling portion 150 consisting of a long bolt 158 and a nut 159 installed through the hole 156 of the 152, The outer side of the outer filter net 24 and the upper lower cover 30, 32, the outer coupling portion that is coupled and supported so that the outer filter net 24 and the upper lower cover 30, 32 are not separated from each other ( 140, 140-1, 140-2 and 140-3 are coupled to each other integrally coupled to the DM filter. The coupling end of claim 7, wherein the outer coupling portion 140 vertically and horizontally bends from each of the bent ends 30a and 32a to extend upwardly than the upper surfaces of the upper lower covers 30 and 32. 144 and the coupling end 142 which is vertically and horizontally bent to extend from the external perforated network 24 to be in contact with the coupling end 144, and each of the coupling end 144 and 142, EDM filter characterized in that the coupling is configured integrally with each other by a curling (curling) coupling method. The method of claim 7, wherein the outer coupling portion 140-1 is bent vertically and horizontally from each bent end (30a) (32a) to extend further upward than the upper surface of the upper lower cover (30) (32) A coupling end 144 and a coupling end 142 that is vertically and horizontally bent to extend from an external perforated network 24 to be in contact with the coupling end 144, and each of the coupling ends 144 and 142. EDM filter, characterized in that the coupling is configured integrally with each other by a seaming coupling scheme. The method of claim 7, wherein The outer coupling portion 140-2 extends upward from the upper surface of the upper lower cover 30, 32 so as to be mutually connected to the outside of each bent end 30a, 32a from the external perforated network 24. It consists of a coupling end 142 is formed to be vertically bent to extend, the coupling end 142 is mutually by a method of bending inward (bending) to be in close contact with each other on the upper surface of the upper lower cover 30, 32 EMD filter, characterized in that configured integrally. The method of claim 7, wherein The outer coupling portion 140-3 includes a coupling end portion 144 vertically bent from each of the bending ends 30a and 32a such that the outer coupling portion 140-3 extends further upward from the upper surface of the upper lower cover 30 and 32. It consists of a coupling end 142 which is vertically bent to extend from the external perforated network 24 in contact with the coupling end 144, each of the coupling end 144, 142 is seam welding (spot welding) or spot welding The DM filter characterized by being combined so as not to be separated from each other by the spot welding method. To the inner perforated network 20 of the metal material for supporting the inner filtration filter 22 and the outer perforated network 24 of the metal material for supporting the outer filtration filter 26 disposed to be spaced apart from the inner filtration filter 22. It is made, the outer edge and the inner central portion of the inner perforated network 20 by applying an adhesive 28 to provide an adhesive space for the primary adhesive fixing of both ends of the inner outer filter 22, 26 EDM is provided with a cooling water injection hole (30c) formed of the upper bottom cover 30, 32 and the upper cover 30, the bent end 30a (32a) and the support end pipe (30b, 32b) is bent In the filter, The inside of the upper lower cover 30, 32 and the inner perforated network 20, the inner perforated network 20 which is penetrated and supported by the support end pipes (30b, 32b) of the upper lower cover (30, 32). And extending ends 20a extending upward from the upper surface of the upper lower cover to both ends of the upper end cover, and supporting each of the extension ends 20a in close contact with the upper surfaces of the upper lower covers 30 and 32. Is coupled by the configuration of the inner engaging portion 250 to be latched, The outer side of the upper lower cover 30, 32 and the outer perforated network 24, the outer coupling portion that is coupled and supported so that the outer filter mesh 24 and the upper lower cover 30, 32 is not separated from each other ( EDM filter, characterized in that coupled to each other integrally by the configuration of 240. The coupling end of claim 12, wherein the outer coupling part 240 is vertically and horizontally bent from each bent end (30a, 32a) to extend further upward than the upper surface of the upper lower cover (30) (32). 144 and the coupling end 142 which is vertically and horizontally bent to extend from the external perforated network 24 to be in contact with the coupling end 144, and each of the coupling end 144 and 142, EDM filter, characterized in that coupled to each other by a curling (curling) or seaming (seaming) coupling scheme. 13. The coupling end portion 144 of claim 12, wherein the outer coupling portion 240 is vertically bent from the bent ends 30a and 32a so as to extend upwardly than the upper surfaces of the upper lower covers 30 and 32. ) And a coupling end 142 vertically bent to extend from the external perforated network 24 to be in contact with the coupling end 144, and the coupling ends 144 and 142 each have an overlapping end. EDM filter, characterized in that the coupling is configured not to be separated from each other by seam welding (spot welding) or spot welding (spot welding) method. The outer perforated body of claim 12, wherein the outer coupling part 240 is connected to the outside of each bent end 30a and 32a to extend upwardly from the upper surface of the upper lower cover 30 and 32. Combination end portion 142 is formed to be vertically bent to extend from the (24), the coupling end portion 142 is bent (bending) inward to be in close contact with each other on the upper surface of the upper lower cover (30) (32) EDM filter, characterized in that coupled to each other by a scheme.

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