CN110064252B - Filter element frame, filter element and gluing method of filter element - Google Patents
Filter element frame, filter element and gluing method of filter element Download PDFInfo
- Publication number
- CN110064252B CN110064252B CN201810067529.3A CN201810067529A CN110064252B CN 110064252 B CN110064252 B CN 110064252B CN 201810067529 A CN201810067529 A CN 201810067529A CN 110064252 B CN110064252 B CN 110064252B
- Authority
- CN
- China
- Prior art keywords
- gluing
- colloid
- filter element
- core material
- glue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
Abstract
The invention discloses a filter element frame, a filter element and a gluing method of the filter element, wherein the gluing method comprises the following steps: preparing a core material and a filter element frame, wherein the filter element frame comprises a gluing part; placing the filter element frame and the core material in a lower die, wherein the filter element frame is positioned below the core material, filling the top surface of the lower die with the colloid, extending the colloid to the gluing part of the filter element frame and the outer wall surface of the core material, and then pressing an upper die downwards towards the lower die so as to cut the colloid into an inner gluing part and an outer gluing part, wherein the inner gluing part is attached to the filter element frame and the core material and is pushed between the gluing part and the core material, so that the gluing part is coated by the colloid, the adhesion area of the colloid and the filter element frame is increased, and the adhesion effect can be enhanced by the pressure of the upper die; the excessive colloid is cut off by pressing down and the shape of the colloid required by forming is not only quick, but also accurate, uniform and beautiful.
Description
Technical Field
The invention relates to a filter element of a filter for separating suspended particles in a fluid, a frame body of the filter element and a gluing method of the filter element.
Background
Referring to fig. 12 and 13, the filter element includes a core 91, a core frame 92 and a rubber layer 93; the filter element frame 92 is sleeved on one end of the core material 91, and the filter element frame 92 and the core material 91 are mutually adhered and fixed and a gap between the filter element frame 92 and the core material 91 is sealed through gluing (glue 94); the rubber layer 93 is coated on the filter element frame 92 and is axially or radially clamped between the filter element frame 92 and the shell so as to seal the gap between the filter element frame 92 and the shell; since the gap between the core member 91 and the filter element frame 92 and the gap between the filter element frame 92 and the housing are closed, the fluid entering the housing is separated from the other end of the housing only by the core member 91 during use, and dust in the fluid adheres to the core member 91 during the passage through the core member 91, thereby the core member 91 exerts a filtering effect.
However, the two gaps of the prior art are sealed respectively with the following disadvantages:
when the filter element frame 92 and the core material 91 are glued and combined in the prior art, firstly, the filter element frame 92 is sleeved outside the core material 91, then a glue gun is inserted between the periphery of the opening of the filter element frame 92 and the outer wall surface of the core material 91, and glue is applied around a circle to seal the gap between the filter element frame 92 and the core material 91 and simultaneously adhere and fix the filter element frame 92 and the core material 91; however, the disadvantages of this combination are:
first, the glue gun must be accurately inserted into the gap between the core frame 92 and the core 91 and moved around one turn, and therefore, the glue gun requires a manual work due to its complicated operation and takes a long time due to its complicated operation.
Second, as previously mentioned, the gun action is complicated and therefore poorly controlled, which may result in uneven application of glue and may even cause the glue 94 to spill out of the way and be unsightly.
Third, such sealing and adhesion effects are not good, and the adhesive 94 may not flow down to the bottom of the gap due to various factors such as insufficient pressure, thereby reducing the adhesion effect.
Fourth, the adhesive 94 is only adhered to the inner wall surface of the opening periphery of the filter element frame 92 and the outer wall surface of the core 91, and the adhesive area of the adhesive 94 adhered to the filter element frame 92 and the core 91 is limited, so that the adhesive effect is poor.
When the Rubber layer 93 of the prior art is coated on the filter element frame 92, specifically, the Rubber layer 93 is thermoplastic Rubber (TPR) and is coated and injection molded on the filter element frame 92, but the following disadvantages are encountered:
first, the rubber layer 93 cannot be reused, and thus is wasted and not environmentally friendly.
Second, since the thermoplastic rubber has high hardness, it requires a large force to install it in the housing during installation, and thus installation is not easy.
Third, because the thermoplastic rubber has a high hardness, the compression of the rubber layer 93 cannot be designed to be too large (i.e., the thickness of the rubber layer 93 cannot be made too thick), which further increases the difficulty of installation into the housing; however, a smaller amount of compression also results in a smaller tolerable tolerance and therefore less likely to seal effectively and possibly cause leakage; in particular, the larger the volume of the housing, the larger the tolerance, and the more possible the leakage.
Fourthly, as shown in fig. 14, if the core 91 and the filter frame 92 are racetrack-shaped, the planar sides of the two long sides of the core 91 are easily pressed inward by the arc-shaped sides of the two short sides due to insufficient stress, and finally the core 91 and the filter frame 92 deform like a peanut; if the compression amount of the rubber layer 93 is too small, the rubber layer 93 cannot be attached to the inner wall surface of the shell at the peanut-shaped deformation part, so that the leakage is caused because the effective sealing cannot be realized; moreover, the reaction force generated by the high hardness of the thermoplastic rubber causes the peanut-like deformation to be more serious.
Disclosure of Invention
In view of the above-mentioned drawbacks and disadvantages of the prior art, the present invention provides a filter element frame, a filter element and a gluing method for a filter element, which can quickly and uniformly glue and have better sealing and adhering effects.
In order to achieve the above object, the present invention provides a filter frame, which is provided with a core material and is adhered to the core material through a glue, the filter frame comprising:
a frame body which is annular and has openings at two axial ends;
the abutting part axially protrudes and is formed around the opening periphery of one end opening of the frame body, and one surface of the abutting part, which is back to the frame body, is provided with a core material abutting surface for abutting against one end of the core material;
the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way, and an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part; the gluing part is used for surrounding the core material and is coated by the colloid, and the inner gluing surface, the outer gluing surface and one end of the gluing part, back to the abutting part, are used for fitting the colloid.
To achieve the above object, the present invention further provides a filter element, comprising:
a core material;
a filter element frame, its cover establish combine in the axial one end of this core, and this filter element frame contains:
a frame body which is positioned at one axial end of the core material, is annular and is provided with openings at two axial ends;
the abutting part axially protrudes and is formed on the opening periphery of the frame body facing to one end opening of the core material in a surrounding mode, and one surface of the abutting part, which is back to the frame body, is provided with a core material abutting surface which abuts against one axial end of the core material;
the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way and surrounds the core material; an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part;
the glue body is coated outside the gluing part, extends into the space between the gluing part and the core material, and is attached to the inner gluing surface and the outer gluing surface of the gluing part, and one end of the gluing part, which is back to the abutting part, and the outer wall surface of the core material;
and the sealing element is arranged on the filter element frame in a surrounding manner.
In order to achieve the above object, the present invention further provides a method for gluing a filter element, comprising the steps of:
preparing materials: preparing a core material and a filter element frame, wherein the filter element frame comprises a frame body, a butting part and a gluing part; the frame body is annular and is provided with openings at two axial ends; the abutting part axially protrudes and is formed around the opening periphery of one end opening of the frame body, and one surface of the abutting part, which is back to the frame body, is provided with a core abutting surface; the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way, and an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part;
placing the filter element frame and the core material on a lower die: placing the filter element frame and the core material in a lower die, wherein the filter element frame is positioned below the core material; one axial end of the core material penetrates through the gluing part and is attached to the core material abutting surface of the filter element frame;
coating colloid: coating a colloid on the gluing part and the core material of the filter element frame, wherein the colloid is attached to the top end of the gluing part, the outer gluing surface and the outer wall surface of the core material;
and (3) cutting off redundant colloid by the upper die: pressing an upper die downwards towards the lower die and the filter element frame to cut the colloid into an inner colloid part and an outer colloid part, wherein the inner colloid part is attached to the filter element frame and the core material and fixedly adheres to the filter element frame and the core material, and the upper die also pushes the inner colloid part between the upper glue part and the core material so as to enable the inner colloid part to be attached to the inner gluing surface of the gluing part and enable the inner colloid part to wrap the gluing part; and finally, taking the filter element frame, the core material and the inner glue part out of the upper die and the lower die.
The filter element frame has the advantages that the gluing part is formed on the filter element frame and surrounds one end of the core material, the glue is coated on the top end of the gluing part, the radial outer side of the gluing part and the outer wall surface of the core material, then the excessive glue is cut off by pressing down the upper die, the glue is extruded between the gluing part and the core material, and the gluing part is coated at the same time, so that the purpose of adhering and fixing the filter element frame outside the core material is achieved;
the colloid is coated on the gluing part and at least coats the inner gluing surface and the outer gluing surface which are attached to the top side and the radial inner side and the radial outer side of the gluing part, so that the contact area of the colloid and the filter element frame can be effectively increased; moreover, the pressure caused by the pressing of the upper die not only pushes the colloid into the deep gap between the core material and the gluing part to increase the contact area, but also enables the colloid to be tightly attached to the gluing part and the core material so as to further enhance the adhesion effect;
moreover, because the colloid covers the gluing part, namely the height of the colloid is higher than that of the gluing part, compared with the coating of a glue gun in the prior art, the top side of the colloid can only be cut off from the periphery of the opening of the filter element frame, otherwise, the colloid overflows, so that the periphery of the opening of the filter element frame needs to be made higher, and the height of the gluing part can be set relatively lower so as to reduce the whole volume of the filter element frame;
finally, the invention does not need to worry about coating the colloid into the deep part of the clearance between the core material and the gluing part in advance, but only needs to surround the coating roughly, and finally, the excessive colloid (the outer gluing part) and the shape of the colloid (the inner gluing part) required by forming are cut off by pressing down the upper die, so compared with the use of a glue gun, the glue gun is quicker, more accurate and more uniform, and the glue gun can avoid the overflow of the colloid and is not beautiful. The invention achieves a fast and reliable sealing and bonding method.
Further, the filter element frame is characterized in that a top gluing surface is formed on the end, back to the abutting portion, of the gluing portion, and the top gluing surface is connected between the inner gluing surface and the outer gluing surface.
Furthermore, the filter element frame further comprises an adhesion part which protrudes radially and is formed around the radial outer side of the gluing part, a bottom gluing surface is formed at one end of the adhesion part back to the abutting part, and the bottom gluing surface is connected to the outer gluing surface and is used for adhering the glue.
Furthermore, the filter element frame further comprises an inclined plane portion which is formed at the junction of the abutting portion and the gluing portion in a surrounding mode, an inclined gluing surface is formed on the inclined plane portion, and the inclined gluing surface is connected between the core material abutting surface and the inner gluing surface in an inclined mode.
Further, the filter element frame further comprises at least one reinforcing plate; two ends of the at least one reinforcing plate are respectively and radially connected with the inner wall surfaces of two opposite sides of the frame body; the axial two sides of the at least one reinforcing plate are respectively aligned with the core material abutting surface of the abutting part and the opening periphery of the frame body opposite to the opening at the other end of the abutting part. The reinforcing plate has a certain height and effectively supports the frame body, so that the filter element frame can be effectively prevented from deforming.
Further, the filter cartridge, wherein: the radial outer wall surface of the frame body of the filter element frame is annularly and concavely provided with at least one annular groove; the at least one sealing element is an elastic sealing ring which is sleeved in the at least one annular groove of the frame body, the at least one elastic sealing ring protrudes out of the at least one annular groove, the center of the cross section of the at least one elastic sealing ring extends to form a ring-shaped center line along the elastic sealing ring in a surrounding manner, and the center line is positioned in the at least one annular groove. The elastic sealing ring can be repeatedly used to meet the requirement of environmental protection and is convenient to replace; in addition, the elastic sealing ring can be in a modular design, and elastic sealing rings made of different materials (temperature resistance, oil resistance and polar climate) can be used according to different use environments; moreover, because the rubber layer of the prior art needs a die for injection molding, the manufacturing cost of the elastic sealing ring is far lower than that of the rubber layer of the prior art, and the difference between the manufacturing cost and the rubber layer is more than tens of times, so the invention can greatly reduce the overall cost.
Further, in the filter element, the at least one sealing member is made of foamed rubber. The hardness of the foaming rubber is lower than that of the thermoplastic rubber in the prior art, so that the elastic sealing ring can be conveniently arranged in the shell of the filter without spending large strength; and even if the compression amount of the elastic sealing ring is increased (the outer diameter of the elastic sealing ring is increased), the force required for filling the filter shell can be reduced; the larger compression amount can tolerate larger tolerance, and even if the runway-type core material and the filter element frame are deformed into a peanut shape, the elastic sealing ring on the filter element frame can still abut against the inner wall surface of the shell to avoid easy leakage; in addition, by using a material with lower hardness, the sealing pressure can be reduced, namely the reaction force of the elastic sealing ring is reduced to avoid the deformation of the core material and the filter element frame.
Further, the gluing method of the filter element comprises the following steps: the top side of the lower die is annularly and concavely provided with a glue melting groove which is encircled on the radial outer side of the filter element frame; during the step of coating colloid, the colloid is coated on the gluing part of the filter element frame and is filled in the glue melting groove at the same time; in the step of cutting off the excess glue from the upper mold, the outer glue portion formed by cutting the glue is located in the glue melting tank. The glue melting groove can be provided with a large amount of glue to maintain the temperature of the glue and avoid the glue from being cooled too fast, so that when the upper die is pressed downwards, the glue still has certain temperature, has higher fluidity and is convenient to cut.
Further, the gluing method of the filter element comprises the following steps: the top side of the lower die is concavely provided with an overflow groove in a surrounding way, the overflow groove is positioned at the radial outer side of the melt adhesive groove, and an annular wall is arranged between the melt adhesive groove and the overflow groove; during the step of coating colloid, the colloid is coated on the gluing part of the filter element frame and is filled in the glue melting groove; in the step of cutting off the excess glue from the upper mold, the glue located at the radial outer side of the upper mold is extruded by the upper mold and overflows into the overflow tank.
Further, the gluing method of the filter element comprises the following steps: the lower die is provided with a shearing part which extends in a surrounding way and is attached to the radial outer side surface of the filter element frame in a surrounding way, and the shearing part is an annular inclined surface; the upper die is provided with a surrounding and extending extrusion part which protrudes downwards, the position of the extrusion part corresponds to the position of the shearing part, and the bottom surface of the extrusion part is a plane; during the step of coating colloid, the colloid is coated on the gluing part of the filter element frame and is coated on the cutting part in an extending way; in the step of cutting off the excess glue from the upper mold, the upper mold is pressed down toward the lower mold until the bottom surface of the extrusion portion abuts against the cutting portion, and the glue is cut into the inner glue portion and the outer glue portion by the cutting portion.
Further, the gluing method of the filter element comprises the following steps: an inclined pushing surface is formed around the radial inner side of the extrusion part of the upper die; in the step of cutting off the excess glue from the upper mold, the upper mold is pressed down toward the lower mold, and the glue located at the radial inner side of the upper mold is pushed toward the core material by the inclined pushing surface of the upper mold, so that the glue protrudes upward along the inclined pushing surface and the outer wall surface of the core material. The inclined pushing surface pushes the inner rubber part towards the core material, so that the inner rubber part protrudes upwards along the inclined pushing surface and the outer wall surface of the core material, and the adhesion area between the inner rubber part and the outer wall surface of the core material is increased.
Further, the gluing method of the filter element comprises the following steps: the upper die is made of a material easy to conduct heat; in the step of cutting off the excess colloid from the upper mold, the upper mold is pressed down toward the lower mold, and when the upper mold contacts the colloid, the upper mold made of the heat-conductive material cools and solidifies the part of the colloid contacting the upper mold. When the upper die contacts the colloid, the part of the colloid contacting the upper die is rapidly cooled and solidified, so that the colloid is conveniently separated from the upper die.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a perspective exterior view of a filter cartridge of the present invention;
FIG. 2 is an exploded view of a cartridge of the present invention;
FIGS. 3 to 6 are schematic views showing the operation of the gluing method of the filter element according to the invention;
FIG. 7 is an enlarged view of FIG. 6;
FIG. 8 is a schematic view of another embodiment of a filter cartridge of the present invention;
FIG. 9 is a perspective view of another embodiment of a filter element frame of the present invention;
FIG. 10 is a side cross-sectional view of yet another embodiment of a filter cartridge frame of the present invention;
FIG. 11 is a flow chart of a sizing method for a cartridge according to the invention;
fig. 12 is an exploded view of a prior art filter cartridge;
FIG. 13 is a schematic cross-sectional side view of a prior art filter cartridge;
fig. 14 is a schematic view of a peanut-like variation of a prior art filter cartridge.
Detailed Description
The technical means adopted by the invention to achieve the preset purpose are further described below by combining the accompanying drawings and the preferred embodiments of the invention.
Referring to fig. 1 and 2, the filter element of the present invention includes a core material 10, a filter element frame 20, a glue 30 and two sealing members 40.
The core material 10 is not limited to various types and shapes, for example, the shape may be circular or track-shaped, and the core material 10 only needs to allow the fluid to pass through for filtering; in the present embodiment, the core 10 is a honeycomb core 10 and has a plurality of axial channels, but the core 10 is not limited thereto, and the core 10 may be a folded core 10, and the type of the core 10 is not limited, so the core is only shown in a schematic manner in the drawings.
Referring to fig. 1, 2 and 7, the filter element frame 20 is sleeved and combined at one axial end of the core 10, and the shape of the filter element frame 20 matches with the shape of the core 10, and the filter element frame 20 includes a frame body 21, an abutting portion 22, a gluing portion 23, an inclined surface portion 24, an adhering portion 25, a plurality of reinforcing plates 26 and a plurality of reinforcing ribs 27.
The frame 21 is annular and has two axial openings, and is located at one axial end of the core material 10; two ring grooves 211 are formed around the radial outer wall surface of the frame body 21 in a concave manner, and the two ring grooves 211 are adjacent to one end opening back to the core material 10.
The abutting portion 22 axially protrudes and is formed around the opening periphery of the frame 21, which is open toward one end of the core 10, and a core abutting surface 221 is formed on a surface of the abutting portion 22 facing away from the frame 21 and abuts against the one end of the core 10 in the axial direction.
The glue section 23 projects axially and is molded around the core abutment surface 221 of the abutment section 22, but only occupies a portion of the core abutment surface 221, and specifically a portion of the core abutment surface 221 that abuts the radially outer side of the abutment section 22, so that the core abutment surface 221 is still available for abutment against the core 10; the gluing part 23 surrounds the core material 10; an inner gluing surface 231 and an outer gluing surface 232 are respectively formed on the radial inner side and the radial outer side of the gluing part 23, a top gluing surface 233 is formed at one end of the gluing part 23, which is back to the abutting part 22, the top gluing surface 233 is connected between the inner gluing surface 231 and the outer gluing surface 232, in the embodiment, the inner gluing surface 231 and the outer gluing surface 232 are parallel to each other, and the inner gluing surface 231 and the outer gluing surface 232 are both vertical to the top gluing surface 233, but the angles of the inner gluing surface 231 and the outer gluing surface 232 are not limited by the above; in addition, in other embodiments, as shown in fig. 8, the gluing portion 23A may have no top gluing surface, and the top sides of the inner gluing surface 231A and the outer gluing surface 232A are directly connected.
Referring to fig. 2 and fig. 7, the inclined surface portion 24 is formed around the boundary between the abutting portion 22 and the glue applying portion 23, and the inclined surface portion 24 is formed with an inclined glue applying surface 241, and the inclined glue applying surface 241 is obliquely connected between the core abutting surface 221 and the inner glue applying surface 231; in addition, in other embodiments, please refer to fig. 8, the inner gluing surface 231A and the core material abutting surface 221A may be directly connected without the inclined surface portion of the gluing portion 23A.
Referring to fig. 2 and fig. 7, the adhesion portion 25 radially protrudes and is formed around the radial outer side of the gluing portion 23, a bottom glue surface 251 is formed at an end of the adhesion portion 25 opposite to the abutting portion 22, and the bottom glue surface 251 is connected to the outer glue surface 232; in this embodiment, the underfill surface 251 is vertically connected to the external underfill surface 232, but the relative angle between the two is not limited thereto; in addition, in other embodiments, please refer to fig. 8, the gluing portion 23A may not have an adhesive portion.
As shown in fig. 2 and fig. 3, the two transverse ends of each reinforcing plate 26 are respectively radially connected to the inner wall surfaces of the two opposite sides of the frame 21, the top side (one axial side) of each reinforcing plate 26 extends to the core material abutting surface 221 of the cut-and-level abutting portion 22, and the bottom side (the other axial side) of each reinforcing plate 26 extends to the bottom side (the opening periphery of the other end opening of the frame 21 relative to the abutting portion 22) of the cut-and-level frame 21; in the present embodiment, the reinforcing plates 26 are disposed at intervals, and one of the reinforcing plates 26 passes through the center of the frame 21.
The reinforcing ribs 27 are connected between the reinforcing plates 26, and the top side (axial side) of each reinforcing rib 27 extends to the core material abutting surface 221 of the cut abutting portion 22.
In the present embodiment, the filter frame 20 is of a race type, the reinforcing plates 26 are linearly spaced apart, and the reinforcing ribs 27 are diagonally and crosswise connected between the reinforcing plates 26.
In another embodiment, as shown in fig. 9 and 10, the filter frame 20B is circular, the reinforcing plates 26B are disposed at intervals, and the reinforcing ribs 27B are connected between the reinforcing plates 26B.
Referring to fig. 1 and 7, the glue 30 is coated outside the gluing portion 23, extends between the gluing portion 23 and the core material 10, and is attached to the outer wall surface of the core material 10, the inclined gluing surface 241, the inner gluing surface 231, the top gluing surface 233, the outer gluing surface 232, and the bottom gluing surface 251; the filter element frame 20 is adhered and fixed with the core material 10 through the colloid 30; in the present embodiment, the glue 30 is a hot melt adhesive or Polyurethane (PU) molded foam.
Referring to fig. 1 to 3 and 7, the two sealing members 40 are disposed around the filter element frame 20; in the present embodiment, the sealing element 40 is an elastic sealing ring, and the two elastic sealing rings are respectively sleeved in the two annular grooves 211 of the frame body 21 of the filter element frame 20; the elastic sealing ring protrudes out of the annular groove 211, but the center of the cross section of the elastic sealing ring extends along the elastic sealing ring to form a ring-shaped center line C in a surrounding manner, and the center line C is positioned in the annular groove 211 (as shown in fig. 7); in the present embodiment, the material of the sealing member 40 is a foamed rubber, a Chloroprene rubber (CR rubber), an ethylene propylene diene monomer (M-class) rubber, or a polyurethane, but the material is not limited thereto.
Referring to fig. 11, the gluing method of the filter element of the present invention comprises the following steps:
preparation material (S1): referring to fig. 2 and 7, a core material 10 and a filter core frame 20 are prepared, wherein the filter core frame 20 includes a frame 21, an abutting portion 22 and a gluing portion 23; the frame body 21 is annular and has openings at two axial ends; the abutting part 22 axially protrudes and is formed around the opening periphery of one end opening of the frame body 21, and a core abutting surface 221 is formed on one surface of the abutting part 22, which is back to the frame body 21; the gluing part 23 axially protrudes and is formed on the core material abutting surface 221 of the abutting part 22 in a surrounding way, and an inner gluing surface 231 and an outer gluing surface 232 are respectively formed on the radial inner side and the radial outer side of the gluing part 23; in the present embodiment, the core 10 and the filter element frame 20 have the same structure as the core 10 and the filter element frame 20, and therefore, the description thereof is not repeated, but the invention is not limited thereto.
Placing the filter element frame and the core material on a lower die (S2): referring to fig. 3 and 7, the filter element frame 20 and the core material 10 are placed in a lower mold 50, and the lower mold 50 has a receiving groove 51, a melt glue groove 52, a cutting portion 53, an overflow groove 54, an annular wall 55 and an alignment groove 56 on the top surface.
The receiving groove 51 is formed in the center of the lower mold 50 in a recessed manner, and has a shape corresponding to the filter element frame 20. The glue melting groove 52 is formed around the opening periphery of the accommodating groove 51. The shearing portion 53 is formed at the junction of the accommodating groove 51 and the glue melting groove 52 in a surrounding and protruding manner, and the shearing portion 53 is an annular inclined surface. The overflow channel 54 surrounds the molten bath 52 radially outward. An annular wall 55 is formed around the protrusion between the overflow groove 54 and the molten gel groove 52. The aligning groove 56 is formed around the radially outer side of the overflow groove 54 and communicates with the overflow groove 54.
Placing the filter element frame 20 downwards and the core material 10 upwards into the containing groove 51 of the lower mold 50, wherein the cutting part 53 of the lower mold 50 is in surrounding contact with the radial outer side surface of the filter element frame 20, and specifically, the radial outer side surface of the adhesion part 25 of the filter element frame 20; the bottom end (axial end) of the core 10 is inserted into the gluing part 23 and is downwardly attached to the core attachment surface 221 of the filter element frame 20.
Coating colloid (S3): referring to fig. 4 and 7, the glue 30 is then applied to the gluing portion 23 and the core material 10 of the filter element frame 20, specifically, the glue 30 is attached to the top end (top gluing surface 233) of the gluing portion 23, the outer gluing surface 232, the bottom gluing surface 251 and the outer wall surface of the core material 10; in the present embodiment, the glue 30 is filled in the glue melting groove 52 of the lower mold 50, and therefore the glue 30 covers the cutting portion 53 and is attached to the radial outer side (the gluing portion 23 and the adhesion portion 25) of the filter element frame 20 and the outer wall surface of the core material 10; in the present embodiment, the glue 30 does not need to be coated deeply between the glue part 23 and the core material 10, but not limited thereto, the glue 30 may be coated slightly deeply between the glue part 23 and the core material 10 or deeply between the glue part 23 and the core material 10 as appropriate.
The upper mold cuts off the excess gel (S4): referring to fig. 5 and 7, an upper mold 60 is pressed downward toward the lower mold 50 and the filter element frame 20; in the present embodiment, the upper mold 60 is made of a material easy to conduct heat, and the upper mold 60 has a pressing portion 61, a pushing surface 62 and a positioning portion 63.
The extrusion part 61 protrudes downwards and is formed on the bottom surface of the upper die 60 and extends around; the position of the pressing portion 61 corresponds to the position of the cutting portion 53 of the lower mold 50, and the bottom surface of the pressing portion 61 is a plane, and it should be further noted that the plane herein does not mean a completely smooth and flat plane, but may have concave and convex, and the plane herein means that the bottom surface of the pressing portion 61 pushes the colloid in a pressing manner, and is different from the inclined surface of the cutting portion 53 that cuts the colloid 30. The inclined pushing surface 62 is formed around the radial inside of the pressing portion 61. The positioning portion 63 protrudes downward from the bottom surface of the upper mold 60, extends around the bottom surface, and is located radially outside the pressing portion 61, and the position of the positioning portion 63 corresponds to the position of the positioning groove 56 of the lower mold 50. When the upper mold 60 is pressed down, the alignment portion 63 and the alignment groove 56 of the lower mold 50 ensure accurate alignment.
The upper mold 60 presses the glue body 30 downwards to cut the glue body 30 into an inner glue portion 31 and an outer glue portion 32, in this embodiment, the bottom surface (plane) of the extrusion portion 61 of the upper mold 60 abuts against the shearing portion 53, and the glue body 30 is cut by the shearing portion 53 into the inner glue portion 31 on the radial inner side of the extrusion portion 61 and the outer glue portion 32 on the radial outer side of the extrusion portion 61; however, without limitation, the bottom surface of the pressing portion 61 of the upper mold 60 may be a slope surface instead of the cutting portion 53 of the lower mold 50, so that the cutting effect may be achieved.
After the glue 30 is cut into the inner glue portion 31 and the outer glue portion 32, the inner glue portion 31 is attached to the filter element frame 20 and the core material 10 and adheres and fixes the filter element frame 20 and the core material 10, and the upper mold 60 also pushes the inner glue portion 31 between the gluing portion 23 and the core material 10, so that the inner glue portion 31 is attached to the inner gluing surface 231, the oblique gluing surface 241 and the outer wall surface of the core material 10, and the inner glue portion 31 covers the gluing portion 23; in addition, when the upper mold 60 is pressed down, the inner glue portion 31 is pushed toward the core 10 by the inclined pushing surface 62 on the radial inner side of the pressing portion 61, so that the inner glue portion 31 protrudes upward along the inclined pushing surface 62 and the outer wall surface of the core 10, thereby increasing the adhesion area between the inner glue portion 31 and the outer wall surface of the core 10. The outer glue portion 32 is located in the glue melting tank 52 and is pressed by the pressing portion 61 of the upper mold 60 to overflow into the overflow tank 54.
In addition, it should be noted that the time point for cutting the colloid 30 is important, the viscosity of the colloid 30 is increased after cooling, the fluidity of the colloid is deteriorated, the colloid is not easy to be cut, and the colloid 30 is not easy to be demoulded when the temperature is too high; in the invention, a large amount of colloid 30 is arranged in the colloid melting groove 52 of the lower die 50, so that the temperature of the colloid 30 can be maintained to avoid too fast cooling of the colloid 30, and the colloid is ensured to have certain temperature and higher fluidity and is convenient to cut when the upper die 60 is pressed downwards; meanwhile, the upper mold 60 is designed to be made of a material easy to conduct heat, so that when the extrusion portion 61 of the upper mold 60 contacts the colloid 30, the extrusion portion 61 of the material easy to conduct heat rapidly cools and solidifies the portion of the colloid 30 contacting the extrusion portion 61, thereby facilitating the separation of the colloid 30 from the upper mold 60 (the extrusion portion 61). The present invention can keep the glue 30 at high temperature and flow easily by the design of the glue melting groove 52 of the lower die 50 and the upper die 60 which is easy to conduct heat, but can also be demoulded easily after cutting.
Referring to fig. 6, the filter element frame 20, the core material 10 and the inner glue portion 31 are finally removed from the upper mold 60 and the lower mold 50.
The invention does not need to worry about coating the colloid 30 into the deep part of the clearance between the core material 10 and the gluing part 23 in advance, but only needs to be coated in a roughly surrounding way, and finally, the excessive colloid 30 (the outer colloid part 32) is cut off by pressing the upper die 60, so that the required shape of the colloid 30 (the inner colloid part 31) can be formed, thereby not only being rapid, but also accurately controlling the shape of the inner colloid part 31, and avoiding the colloid 30 from overflowing and being unattractive. In addition, the excess glue 30 (outer glue portion 32) on the lower mold 50 can be recycled, thereby achieving the purpose of reducing the amount of glue 30 and protecting the environment.
According to the invention, the colloid 30 covers the gluing part 23 of the filter element frame 20, and covers and adheres to the top side (the top gluing surface 233) and the radial inner and outer sides (the inner gluing surface 231 and the outer gluing surface 232) of the gluing part 23, and simultaneously extends to the inclined gluing surface 241 on the radial inner side and the bottom gluing surface 251 on the radial outer side, so that the contact area between the colloid 30 and the filter element frame 20 can be greatly increased.
In addition, more glue bodies 30 are coated on the upper glue part 23 and the core material 10, and when the upper die 60 is pressed down, the glue bodies 30 are further pushed upwards by the glue bodies 30 (the inner glue parts 31) on the inner side of the upper die 60, so that the glue bodies 30 can be attached to the outer wall surfaces of more core materials 10, and the contact area between the glue bodies 30 and the core materials 10 is increased; the inclined pushing surface 62 of the upper mold 60 can further raise the height of the glue 30 (the inner glue portion 31) to increase the contact area with the core material 10.
Furthermore, the inclined pushing surface 62 of the upper mold 60 not only can increase the height of the inner glue portion 31, but also can form a ring inclined surface on the inner glue portion 31, thereby further reducing the amount of the glue 30 and maintaining a higher adhesion area (and the core material 10).
The present invention can effectively improve the sealing and adhesion effects by increasing the contact area of the colloid 30 with the filter element frame 20 and the core material 10.
Moreover, the pressure generated when the upper mold 60 is pressed down not only pushes the glue 30 into the gap between the core material 10 and the glue applying portion 23 to increase the contact area, but also causes the glue 30 to adhere tightly to the glue applying portion 23 and the core material 10 to further enhance the adhesion effect. The invention achieves a fast and reliable sealing and bonding method.
Finally, since the glue 30 (the inner glue portion 31) covers the glue applying portion 23, i.e. the height of the glue 30 is higher than that of the glue applying portion 23, the height of the glue applying portion 23 can be set relatively lower to reduce the overall volume (height) of the filter element frame 20.
In addition, in other embodiments, the lower mold 50 may not have the glue melting groove 52, and the glue 30 is directly and substantially coated on the top end and the outer gluing surface 232 of the gluing portion 23 of the filter element frame 20 and the outer wall surface of the core material 10, and the glue 30 only slightly overflows to the top surface of the lower mold 50, and finally the glue 30 is cut in the same way, so that the above-mentioned various effects can be achieved.
In addition, the frame body 21 of the filter element frame 20 is provided with the annular groove 211, the sealing element 40 is an elastic sealing ring and is arranged in the annular groove 211, and the elastic sealing ring is abutted against the inner wall surface of the shell of the filter to realize radial sealing, so that the elastic sealing ring can be repeatedly used to achieve the requirement of environmental protection, and the elastic sealing ring is convenient to replace; in addition, the elastic sealing ring can be in a modular design, and elastic sealing rings made of different materials (temperature resistance, oil resistance and polar climate) can be used according to different use environments; moreover, the manufacturing cost of the elastic sealing ring is lower, so that the overall cost can be greatly reduced.
In addition, the elastic sealing ring is made of a material with lower hardness (such as foamed rubber and the like), so that the elastic sealing ring can be conveniently arranged in the shell of the filter without spending large strength; and even if the compression amount of the elastic sealing ring is increased (the outer diameter of the elastic sealing ring is increased), the force required for filling the filter shell can be reduced; the larger compression amount can tolerate larger tolerance, and even if the runway-type core material 10 and the filter element frame 20 are deformed into a peanut shape, the elastic sealing ring on the filter element frame 20 can still abut against the inner wall surface of the shell, so as to avoid easy leakage; in addition, by using a material having a low hardness, the sealing pressure, i.e., the reaction force of the elastic seal ring, can be reduced to prevent the deformation of the core material 10 and the filter frame 20.
Finally, the reinforcing plate 26 and the reinforcing rib 27 of the filter element frame 20 of the present invention can be more effectively prevented from being deformed, and particularly, the top side (one axial side) of the reinforcing plate 26 extends to the core material abutting surface 221 of the cut abutting portion 22, and the bottom side (the other axial side) of the reinforcing plate 26 extends to the bottom side of the cut frame body 21, in other words, the reinforcing plate 26 has a certain height, and some of the reinforcing plate 26 also passes through the center of the filter element frame 20, so that the frame body 21 and the entire filter element frame 20 can be sufficiently prevented from being deformed.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A filter core frame, a core is established to its cover, and through this core of a colloid adhesion, its characterized in that, this filter core frame contains:
a frame body which is annular and has openings at two axial ends;
the abutting part axially protrudes and is formed around the opening periphery of one end opening of the frame body, and one surface of the abutting part, which is back to the frame body, is provided with a core material abutting surface for abutting against one end of the core material;
the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way, and an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part; the gluing part is used for surrounding the core material and is coated by the colloid, and the inner gluing surface, the outer gluing surface and one end of the gluing part, back to the abutting part, are used for fitting the colloid.
2. The filter cartridge frame of claim 1, wherein the end of the glue section facing away from the abutment section is formed with a top glue surface connected between the inner and outer glue surfaces.
3. The filter cartridge frame of claim 1 or 2, further comprising an adhesion portion protruding radially and formed around a radially outer side of the glue portion, wherein an end of the adhesion portion facing away from the abutting portion is formed with a primer surface, and the primer surface is connected to the outer primer surface and is used for adhering the glue.
4. The filter cartridge frame of claim 1 or 2, further comprising a slope portion formed around a junction of the abutting portion and the glue portion, wherein the slope portion is formed with a slanted glue surface, and the slanted glue surface is obliquely connected between the core abutting surface and the inner glue surface.
5. The filter cartridge frame of claim 1 or 2, further comprising at least one reinforcing plate; two ends of the at least one reinforcing plate are respectively and radially connected with the inner wall surfaces of two opposite sides of the frame body; the axial two sides of the at least one reinforcing plate are respectively aligned with the core material abutting surface of the abutting part and the opening periphery of the frame body opposite to the opening at the other end of the abutting part.
6. A filter cartridge, comprising:
a core material;
a filter element frame, its cover establish combine in the axial one end of this core, and this filter element frame contains:
a frame body which is positioned at one axial end of the core material, is annular and is provided with openings at two axial ends;
the abutting part axially protrudes and is formed on the opening periphery of the frame body facing to one end opening of the core material in a surrounding mode, and one surface of the abutting part, which is back to the frame body, is provided with a core material abutting surface which abuts against one axial end of the core material;
the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way and surrounds the core material; an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part;
the glue body is coated outside the gluing part, extends into the space between the gluing part and the core material, and is attached to the inner gluing surface and the outer gluing surface of the gluing part, and one end of the gluing part, which is back to the abutting part, and the outer wall surface of the core material;
and the sealing element is arranged on the filter element frame in a surrounding manner.
7. The filter cartridge of claim 6, wherein:
the radial outer wall surface of the frame body of the filter element frame is annularly and concavely provided with at least one annular groove;
the at least one sealing element is an elastic sealing ring which is sleeved in the at least one annular groove of the frame body, the at least one elastic sealing ring protrudes out of the at least one annular groove, the center of the cross section of the at least one elastic sealing ring extends to form a ring-shaped center line along the elastic sealing ring in a surrounding manner, and the center line is positioned in the at least one annular groove.
8. A filter element according to claim 6 or 7, wherein the at least one sealing member is made of foamed rubber.
9. A gluing method for a filter element is characterized by comprising the following steps:
preparing materials: preparing a core material and a filter element frame, wherein the filter element frame comprises a frame body, a butting part and a gluing part; the frame body is annular and is provided with openings at two axial ends; the abutting part axially protrudes and is formed around the opening periphery of one end opening of the frame body, and one surface of the abutting part, which is back to the frame body, is provided with a core abutting surface; the gluing part axially protrudes and is formed on the core material abutting surface of the abutting part in a surrounding way, and an inner gluing surface and an outer gluing surface are respectively formed on the radial inner side and the radial outer side of the gluing part;
placing the filter element frame and the core material on a lower die: placing the filter element frame and the core material in a lower die, wherein the filter element frame is positioned below the core material; one axial end of the core material penetrates through the gluing part and is attached to the core material abutting surface of the filter element frame;
coating colloid: coating a colloid on the gluing part and the core material of the filter element frame, wherein the colloid is attached to the top end of the gluing part, the outer gluing surface and the outer wall surface of the core material;
and (3) cutting off redundant colloid by the upper die: pressing an upper die downwards towards the lower die and the filter element frame to cut the colloid into an inner colloid part and an outer colloid part, wherein the inner colloid part is attached to the filter element frame and the core material and fixedly adheres to the filter element frame and the core material, and the upper die also pushes the inner colloid part between the upper glue part and the core material so as to enable the inner colloid part to be attached to the inner gluing surface of the gluing part and enable the inner colloid part to wrap the gluing part; and finally, taking the filter element frame, the core material and the inner glue part out of the upper die and the lower die.
10. A method for sizing a cartridge according to claim 9, wherein:
the top side of the lower die is annularly and concavely provided with a glue melting groove which is encircled on the radial outer side of the filter element frame;
during the step of coating the colloid, the colloid is coated on the gluing part of the filter element frame and is simultaneously filled in the glue melting groove;
when the step of cutting off the redundant colloid from the upper die is performed, the outer colloid part formed by cutting the colloid is positioned in the glue melting groove.
11. A method for sizing a cartridge as defined in claim 10, wherein:
the top side of the lower die is concavely provided with an overflow groove in a surrounding way, the overflow groove is positioned at the radial outer side of the melt adhesive groove, and an annular wall is arranged between the melt adhesive groove and the overflow groove;
during the step of coating the colloid, the colloid is coated on the gluing part of the filter element frame and is filled in the glue melting groove at the same time;
when the step of cutting off the excessive colloid from the upper die, the colloid positioned at the radial outer side of the upper die is extruded by the upper die and overflows into the overflow groove.
12. A method of gluing a filter cartridge according to any one of claims 9 to 11, wherein:
the lower die is provided with a shearing part which extends in a surrounding way and is attached to the radial outer side surface of the filter element frame in a surrounding way, and the shearing part is an annular inclined surface; the upper die is provided with a surrounding and extending extrusion part which protrudes downwards, the position of the extrusion part corresponds to the position of the shearing part, and the bottom surface of the extrusion part is a plane;
during the step of coating the colloid, the colloid is coated on the gluing part of the filter element frame and is coated on the shearing part in an extending way;
when the step of cutting off the excessive glue body by the upper die is carried out, the upper die is pressed downwards towards the lower die until the bottom surface of the extrusion part is abutted against the shearing part, and the glue body is cut into the inner glue part and the outer glue part by the shearing part.
13. A method for sizing a cartridge as defined in claim 12, wherein:
an inclined pushing surface is formed around the radial inner side of the extrusion part of the upper die;
when the step of cutting off the excessive colloid from the upper die is carried out, the upper die is pressed downwards towards the lower die, the colloid positioned on the radial inner side of the upper die is pushed towards the core material by the inclined push surface of the upper die, and the colloid is enabled to protrude upwards along the inclined push surface and the outer wall surface of the core material.
14. A method of gluing a filter cartridge according to any one of claims 9 to 11, wherein:
the upper die is made of a material easy to conduct heat;
when the upper die contacts the colloid, the upper die made of the heat-conducting material cools and solidifies the part of the colloid contacting the upper die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067529.3A CN110064252B (en) | 2018-01-24 | 2018-01-24 | Filter element frame, filter element and gluing method of filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810067529.3A CN110064252B (en) | 2018-01-24 | 2018-01-24 | Filter element frame, filter element and gluing method of filter element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110064252A CN110064252A (en) | 2019-07-30 |
| CN110064252B true CN110064252B (en) | 2021-08-03 |
Family
ID=67365534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810067529.3A Active CN110064252B (en) | 2018-01-24 | 2018-01-24 | Filter element frame, filter element and gluing method of filter element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110064252B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5926119A (en) * | 1982-08-04 | 1984-02-10 | Shinko Kogyo Kk | Filter apparatus |
| CN104815488A (en) * | 2015-04-09 | 2015-08-05 | 淳靖股份有限公司 | Filter element and forming method thereof |
| TWM540682U (en) * | 2017-02-06 | 2017-05-01 | Pro-Pure Inc | Filter frame and filter |
| CN206198890U (en) * | 2015-08-03 | 2017-05-31 | 马勒国际有限公司 | Filter element with framework and filtering bodies |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005009836U1 (en) * | 2005-06-21 | 2006-10-26 | Mann + Hummel Gmbh | filter element |
-
2018
- 2018-01-24 CN CN201810067529.3A patent/CN110064252B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5926119A (en) * | 1982-08-04 | 1984-02-10 | Shinko Kogyo Kk | Filter apparatus |
| CN104815488A (en) * | 2015-04-09 | 2015-08-05 | 淳靖股份有限公司 | Filter element and forming method thereof |
| CN206198890U (en) * | 2015-08-03 | 2017-05-31 | 马勒国际有限公司 | Filter element with framework and filtering bodies |
| TWM540682U (en) * | 2017-02-06 | 2017-05-01 | Pro-Pure Inc | Filter frame and filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110064252A (en) | 2019-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI655025B (en) | Filter element frame, filter element and gluing method of filter element | |
| US9167876B2 (en) | Waterproofing case and method of manufacturing waterproofing case | |
| CA2990143C (en) | Process for production of gaskets | |
| JP6768822B2 (en) | Gasket and its manufacturing method | |
| US8246776B2 (en) | Crank for bicycle and method for manufacturing the same | |
| WO2017002579A1 (en) | Method for manufacturing substrate-integrated gasket | |
| CN1966237A (en) | Molded article production method and molded article | |
| CN110064252B (en) | Filter element frame, filter element and gluing method of filter element | |
| CA2987812C (en) | Gasket and method for producing same | |
| KR20160008155A (en) | Method for manufacturing carbon plate-integrated gasket | |
| KR101154847B1 (en) | Bearing with laminated coating spacer and manufacturing method thereof | |
| EP0022235A2 (en) | Radiator for heater-fans, particularly for passenger car air-conditioning systems | |
| JP5514366B2 (en) | Sealing material molding method | |
| JP6324528B2 (en) | Manufacturing method of waterproof control unit | |
| US7435371B2 (en) | Method for manufacturing rubber parts combined with substrate | |
| JP5206713B2 (en) | Assembling method of semiconductor package | |
| CN217048814U (en) | Automobile blanking cover and automobile | |
| CN110450344B (en) | Battery cover manufacturing method and battery cover | |
| EP4252995A1 (en) | Apparatus and method for manufacturing metal-resin composite | |
| JP7317404B1 (en) | Filter and filter assembly method | |
| KR20170010873A (en) | Plastic tank | |
| JP3475269B2 (en) | Manufacturing method of sealing material | |
| CN117276877A (en) | Conformal radome and manufacturing method thereof | |
| KR20160053224A (en) | Plastic tank, method and system for welding palstic tank | |
| JP2024057905A (en) | Waterproof structure of the housing and manufacturing method of packing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |