CN219615139U

CN219615139U - Primary filter for paint spraying operation

Info

Publication number: CN219615139U
Application number: CN202223544142.3U
Authority: CN
Inventors: 田青苗; 张圣吉; 陈玄铎
Original assignee: Suzhou Hongyuan Purification Technology Co ltd
Current assignee: Suzhou Hongyuan Purification Technology Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-09-01
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a primary filter used in paint spraying operation, which comprises an outer frame and a filter element arranged in the outer frame, wherein an elastic sealing piece is arranged on the inner wall of the outer frame and is arranged into glass fiber filter paper, the sealing piece is abutted with the edge plane of the filter element, and the edge of the filter element presses the sealing piece to enable the sealing piece to deform and be tightly attached to the side wall of the filter element. The edge of the filter element and the inner wall of the outer frame are pressed and attached to contact by means of elastic deformation of the sealing element during installation, so that sealing effect is formed, chemical reaction of colloid and high-temperature paint in an atomization state is avoided, and the sealing element can be detached and replaced after being used for a period of time, so that maintenance is facilitated.

Description

Primary filter for paint spraying operation

Technical Field

The utility model relates to the technical field of filters, in particular to a primary filter for paint spraying operation.

Background

The primary filter is a primary filter unit of an air conditioning system and is mainly used for filtering dust particles with the particle size of more than 5 mu m, and the primary filter is generally of three types of plate type, folding type and bag type. Wherein the folding filter generally comprises an outer frame, a filter layer and a protective net, wherein the filter layer is generally made of filter paper folded in a plurality of layers.

At present, in order to ensure the tightness between the air inlet side and the air outlet side of the filter, the edge of the filter layer and the inner wall of the outer frame are filled with glue, and the seal is formed after the glue is solidified. However, under some working conditions, for example, in an automobile paint spraying process, in one of the drying steps, the primary filter filters high-temperature gas to dry paint, and as part of paint molecules drift in air when the paint is not completely cured, the part of paint molecules can chemically react with the colloid in a high-temperature state, so that bubbles are generated in the colloid, and the sealing performance of the primary filter is affected.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a primary filter for paint spraying operation, which has the advantages of more stable sealing performance, suitability for occasions where certain colloids are not easy to be used and convenience in maintenance.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a just imitate filter for in paint spraying operation, includes the frame and arranges the filter core in the frame in, the frame inner wall is equipped with elastic sealing member, sealing member and filter core edge plane butt, the edge extrusion of filter core sealing member makes sealing member warp and filter core lateral wall closely laminate.

According to the technical scheme, the edge of the filter element is in extrusion fit contact with the inner wall of the outer frame through elastic deformation of the sealing element during installation, so that a sealing effect is formed, chemical reaction of colloid and high-temperature paint in an atomization state is avoided, and the sealing element can be detached and replaced after a period of use, so that maintenance is facilitated.

As one preferable scheme of the utility model, the filter element comprises high-temperature filter paper which is folded in an arc shape, the filter paper is folded to form a plurality of folding spaces, supporting paper is arranged in each folding space, the section of the supporting paper is wavy, and two side surfaces of the supporting paper are abutted against the inner walls of the folding spaces.

According to the technical scheme, the section of the supporting paper is wavy so that the supporting paper has certain elasticity, and the acting force of outwards supporting the filter paper is given under the action of elastic deformation, so that the two side walls of the filter paper are further extruded on the inner wall of the outer frame, and the sealing effect is further ensured.

As one of the preferable schemes of the utility model, the outer frame comprises two side frames which are oppositely arranged, a top frame which is positioned at the same end of the two side frames and a bottom frame which is positioned at the other end of the two side frames, two ends of the bottom frame are detachably arranged on the side frames, and sealing flanges are respectively folded and arranged on the side frames, the top frame and the bottom frame.

By means of the technical scheme, atomized paint molecules are further reduced to be in contact with the sealing piece, and therefore sealing stability is further guaranteed.

As one preferable scheme of the utility model, the two ends of the bottom frame are provided with the buckling grooves, and the bottoms of the two side frames are provided with buckling protrusions matched with the buckling grooves.

The technical scheme is realized, the bottom frame is detached simply and conveniently, so that the filter element and the sealing piece are convenient to replace, and the convenience of later maintenance is improved.

As one preferred embodiment of the present utility model, the sealing member comprises glass fiber filter paper.

As one preferable scheme of the utility model, the thickness of the glass fiber filter paper is 1mm-3mm.

As one preferable scheme of the utility model, the surface of the glass fiber filter paper is provided with a concave groove, the track of the concave groove is overlapped with the track of the end parts of the filter paper and the supporting paper, and the end parts of the filter paper and the supporting paper are embedded in the concave groove.

According to the technical scheme, the filter element is inserted and matched in the sealing piece through the concave groove, so that the sealing performance between the filter element and the sealing piece is further improved, and the sealing performance between the filter element and the outer frame is improved.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the colloid is sealed by improving the colloid into an elastic sealing piece, so that the colloid is prevented from reacting with paint molecules, the stability of the automobile in the process of spraying paint and filtering high-temperature air is improved, and the sealing piece can be detached and replaced, so that the later maintenance is facilitated;

2. the surface of the sealing piece is provided with the grooves corresponding to the filter paper and the supporting paper, so that the connection between the filter paper and the supporting paper and the sealing piece is more airtight, and the sealing performance is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of a primary filter;

fig. 2 is an exploded construction view mainly for showing an outer frame structure;

fig. 3 is an exploded structural view mainly for showing the structure of the cartridge.

Reference numerals: 1. an outer frame; 11. a side frame; 12. a top frame; 13. a bottom frame; 2. a filter element; 21. a filter paper; 22. supporting paper; 3. a seal; 4. a wire netting; 51. a buckle groove; 52. a snap-fit protrusion; 6. a concave groove.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

Referring to fig. 1 and 3, the primary filter for paint spraying operation disclosed in the embodiment of the utility model comprises an outer frame 1 and a filter element 2 arranged in the outer frame 1, wherein two sides of the outer frame 1 are also provided with wire meshes 4 for limiting displacement of the filter element 2, so that stability in the use process is ensured. The outer frame 1 comprises two side frames 11 which are oppositely arranged, a top frame 12 positioned at the same end of the two side frames 11 and a bottom frame 13 positioned at the other end of the two side frames 11, wherein buckling grooves 51 are formed in the inner walls of two end parts of the bottom frame 13, buckling protrusions 52 matched with the buckling grooves 51 are formed on the outer walls of the bottoms of the two side frames 11 so that the bottom frame 13 is detached and arranged on the side frames 11, the top frame 12 and the two side frames 11 are also connected through the same connecting structure as the bottom frame 13, riveting between the top frame 12 and the side frames 11 can be selected, and sealing flanges are formed on the side frames 11, the top frame 12 and the bottom frame 13 in a turnover mode so as to ensure sealing performance.

Referring to fig. 2 and 3, the filter core 2 includes a plurality of folding spaces formed by folding the filter paper 21, each folding space is internally provided with a supporting paper 22, the cross section of the supporting paper 22 is wave-shaped, two side surfaces of the supporting paper 22 are abutted with the inner walls of the folding spaces, two side edges of the filter paper 21 are respectively abutted with the inner walls of the two side frames 11, the cross section of the supporting paper 22 is wave-shaped so that the supporting paper 22 has certain elasticity, and the acting force for outwards supporting the filter paper 21 is given under the action of elastic deformation, so that the two side walls of the filter paper 21 are further extruded on the inner walls of the outer frame 1, and the sealing effect is further ensured.

Referring to fig. 2 and 3, the bottom of the bottom frame 13 and the bottom of the top frame 12 are respectively provided with an elastic sealing member 3, in this embodiment, the sealing member 3 includes glass fiber filter paper with a certain thickness, the thickness of the glass fiber filter paper is 1mm-3mm, when the filter element 2 is installed, edges of the end parts in the vertical direction of the filter element 2 respectively press the sealing members 3 in the top frame 12 and the bottom frame 13 so that the sealing members 3 deform to be closely attached to the side walls of the filter element 2 to realize sealing effect, and in order to further improve the sealing performance, the surfaces of the glass fiber filter paper are provided with concave grooves 6, the track of the concave grooves 6 coincides with the track of the end parts of the filter paper 21 and the supporting paper 22, and the end parts of the filter paper 21 and the supporting paper 22 are embedded in the concave grooves 6.

The implementation principle of the primary filter used in the paint spraying operation of the embodiment of the utility model is as follows: the edge of the filter element 2 and the inner wall of the outer frame 1 are pressed and attached to contact by means of elastic deformation of the sealing piece 3 during installation, so that a sealing effect is formed, chemical reaction of colloid and high-temperature paint in an atomization state is avoided, and the sealing piece 3 can be detached and replaced after a period of use, so that maintenance is facilitated.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a primary filter for in paint spraying operation, includes frame (1) and arranges filter core (2) in frame (1), its characterized in that:

the inner wall of the outer frame (1) is provided with an elastic sealing piece (3), the sealing piece (3) is abutted to the edge plane of the filter element (2), and the edge of the filter element (2) extrudes the sealing piece (3) so that the sealing piece (3) is deformed and tightly attached to the side wall of the filter element (2).

2. A primary filter for use in paint operations according to claim 1, wherein: the filter element (2) comprises filter paper (21) which is in arc-shaped folding, the filter paper (21) is folded to form a plurality of folding spaces, supporting paper (22) is arranged in each folding space, the section of each supporting paper (22) is in a wave shape, and two side faces of each supporting paper (22) are in butt joint with the inner walls of the folding spaces.

3. A primary filter for use in paint operations according to claim 1, wherein: the outer frame (1) comprises two opposite side frames (11), a top frame (12) positioned at the same end of the two side frames (11) and a bottom frame (13) positioned at the other end of the two side frames (11), wherein the two ends of the bottom frame (13) are detachably arranged on the side frames (11), and sealing flanges are respectively folded and arranged on the side frames (11), the top frame (12) and the bottom frame (13).

4. A primary filter for use in paint operations according to claim 3, wherein: the two ends of the bottom frame (13) are provided with buckling grooves (51), and the bottoms of the two side frames (11) are provided with buckling protrusions (52) matched with the buckling grooves (51).

5. A primary filter for use in paint operations according to claim 1, wherein: the sealing element (3) comprises glass fiber filter paper.

6. The primary filter for use in paint operations of claim 5, wherein: the thickness of the glass fiber filter paper is 1mm-3mm.

7. The primary filter for use in paint operations of claim 6, wherein: the surface of the glass fiber filter paper is provided with a concave groove (6), the track of the concave groove (6) is overlapped with the track of the end parts of the filter paper (21) and the supporting paper (22), and the end parts of the filter paper (21) and the supporting paper (22) are embedded in the concave groove (6).