CN112475158A

CN112475158A - Filter screen cutting ring cutter

Info

Publication number: CN112475158A
Application number: CN202011191244.4A
Authority: CN
Inventors: 李永华; 卞田军; 徐庆和
Original assignee: Zibo Yonghua Filters Make Co ltd
Current assignee: Zibo Yonghua Filters Make Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-03-12

Abstract

The invention belongs to the technical field of filter production equipment, and particularly relates to a filter screen cutting ring cutter which comprises a cutting main cutter and a cutting auxiliary cutter, wherein the cutting main cutter and the cutting auxiliary cutter respectively comprise a cutting edge and a cutter back, the surface of the cutter back is subjected to frosting treatment, and the surface roughness Ra of the cutter back is 0.11-0.25; the cutting edges of the main cutting knife and the auxiliary cutting knife are matched together, and the main cutting knife and the auxiliary cutting knife rotate oppositely. Improve the roughness that the filter screen both sides were cut edge, make the filter screen more inseparable with the upper and lower end cover cooperation, avoid media such as gas-liquid can pass through and play the filtering action from the clearance of reserving between filter screen and the filter to the result of use of filter has been improved. The cutting edge is with the filter screen cutting back, and rotatory sword can grind the cutting surface, makes the regularity of cutting the net both sides improve, avoids the fish tail of fitting surface, thereby avoids the further expansion of fit clearance to influence the result of use.

Description

Filter screen cutting ring cutter

Technical Field

The invention relates to a filter screen cutting ring cutter, and belongs to the technical field of filter production equipment.

Background

The filter is a component that functions to filter impurities or gas through filter paper, and is generally an automobile filter, which is a component of an engine. The filter is divided into an oil filter, a fuel filter (a gasoline filter, a diesel filter, an oil-water separator and a hydraulic filter), an air filter and the like according to different filtering functions. The filter accessory includes the filter screen, and the filter screen generally is the ferronickel alloy about 0.3mm of thickness, need pass through the manual work during production with monoblock filter screen and cut into the bar shape then further processing. However, the filter produced by the method has a problem that after the filter is formed, the using effect of the product is poor, namely, a medium such as gas and liquid can pass through a gap reserved between the filter screen and the filter, and the medium does not have a filtering effect on the part. The analysis reason is as follows: the holistic roughness of filter screen is not good, can curl, and the cutting edge regularity of filter screen is not good when causing the cutting, and the depth of parallelism on both sides cutting edge is not high not only, still easily remains the burr on the hair limit. When the upper and lower end cover with the filter cooperates, the cooperation is inseparable, and deckle edge burr is more easy with the fitting surface fish tail, causes the fit clearance further to expand, influences the result of use.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the invention are as follows: overcome prior art's not enough, provide a filter screen cutting ring, improve the roughness that the filter screen both sides were cut edge, eliminate the influence of deckle edge burr to improve the result of use of filter.

The filter screen cutting ring knife comprises a cutting main knife and a cutting auxiliary knife, wherein the cutting main knife and the cutting auxiliary knife comprise cutting edges and knife backs, the surface of the knife backs is subjected to frosting treatment, and the surface roughness Ra of the knife backs is 0.11-0.25; the cutting edges of the main cutting knife and the auxiliary cutting knife are matched together, and the main cutting knife and the auxiliary cutting knife rotate oppositely.

The filter screen in marcing is cut into required bar (as shown in figure 3) by pivoted filter screen cutting ring in opposite directions, and not only the machine is cut the net and is replaced the manual work and improved work efficiency, and more importantly has guaranteed the depth of parallelism of cutting the net both sides, makes the filter screen more inseparable with the upper and lower end cover cooperation, avoids media such as gas-liquid can follow the clearance of reserving between filter screen and the filter and pass through and play the filtering action not to whole result of use that has improved the filter. The cutting edge is with the filter screen cutting back, and rotatory back of a knife blade can grind the cutting surface, and the roughness Ra that sets up the back of a knife blade through experimental analysis is between 0.11 ~ 0.25, and the thickness and the ferronickel material of adaptation filter screen that can be fine get rid of the deckle edge burr of cutting surface make the regularity of cutting the net both sides improve greatly, and the fish tail of fitting surface is avoided to the filter shaping back, thereby avoids the fit clearance to further enlarge and influences the result of use.

In order to fully adapt to the characteristics of a ferronickel material with the thickness of 0.2-0.5 mm, the cutting edge angle alpha of the cutting edge is 70-85 degrees, the back angle beta of the back of the knife is 45-70 degrees, the width a of the cutting edge is 0.2-0.5 mm, the width b of the back of the knife is 0.8-2 mm, and the overlap ratio c is 2-4 mm. After the ferronickel filter screen with the thickness of 0.2-0.5 mm is cut, a curled edge is generated at the cutting position (the left side edge is rolled upwards, and the right side edge is rolled downwards). The cutting knife of this structure can be fit for very much cutting the thick ferronickel filter screen of 0.2 ~ 0.5mm, and it is smooth to cut edge after the cutting, and the roughness is high, has improved the leakproofness of filter.

More preferably, the cutting edge angle α of the cutting edge is 80 °, the back angle β of the back of the knife is 55 °, the cutting edge width a is 0.3mm, the back of the knife is 1.5mm, and the contact ratio c is 3 mm. Is suitable for cutting the ferronickel filter screen with the thickness of 0.3 mm.

The cutting main cutter and the cutting auxiliary cutter are provided with through holes, locking screws are arranged in the through holes, the positions of the cutting main cutter and the cutting auxiliary cutter on the cutting roller can be adjusted left and right according to the width of a cut filter screen, and the adaptability is enhanced.

Compared with the prior art, the invention has the beneficial effects that:

the filter screen cutting ring cutter improves the flatness of the trimming edges at two sides of the filter screen, eliminates the influence of burrs and burrs, enables the filter screen to be matched with the upper end cover and the lower end cover more tightly, and prevents media such as gas and liquid from passing through a reserved gap between the filter screen and a filter and not playing a role of filtering, thereby integrally improving the using effect of the filter. The cutting edge is with the filter screen cutting back, and rotatory sword can grind the cutting surface, and the roughness Ra that sets up the back of a knife through experimental analysis is between 0.11 ~ 0.25, and the thickness and the ferronickel material of adaptation filter screen that can be fine get rid of the deckle edge burr of cutting surface make the regularity of cutting the net both sides improve greatly, and the fish tail of fitting surface is avoided to the filter shaping back, thereby avoids the further expansion of fit clearance to influence the result of use. The cutting width can be adjusted at will, the adaptability is strong, and the economic benefit is good.

Drawings

FIG. 1 is a schematic view of a screen cutting ring;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

fig. 3 is a schematic cut view of a screen.

In the figure: 1. cutting the main cutter; 2. cutting the auxiliary knife; 3. a through hole; 4. a blade; 5. a back of a knife; 6. and (5) filtering by using a filter screen.

Detailed Description

The invention is further described below with reference to examples:

as shown in fig. 1 to 3, the filter screen cutting ring cutter of the present invention comprises a main cutting knife 1 and an auxiliary cutting knife 2, wherein both the main cutting knife 1 and the auxiliary cutting knife 2 comprise a cutting edge 4 and a back 5, the surface of the back 5 is ground, and the surface roughness Ra of the back 5 is between 0.11 and 0.25; the cutting edges 4 of the main cutting knife 1 and the auxiliary cutting knife 2 are matched together, and the main cutting knife 1 and the auxiliary cutting knife 2 rotate oppositely.

In the present embodiment, the cutting edge angle α of the cutting edge 4 is 80 °, the back angle β of the back 5 is 55 °, the cutting edge width a is 0.3mm, the back width b is 1.5mm, and the contact ratio c is 3 mm.

The cutting main knife 1 and the cutting auxiliary knife 2 of the embodiment are provided with through holes 3, locking screws are arranged in the through holes 3, and the positions of the cutting main knife 1 and the cutting auxiliary knife 2 on the cutting roller can be adjusted left and right according to the width of a cut filter screen (the embodiment is equidistant). The cutting main knife 1 and the cutting auxiliary knife 2 can be moved and fixed by loosening and tightening the locking screws.

The working process or working principle of the invention is as follows:

the filter screen 6 in marcing is cut into required bar (as shown in figure 3) by the pivoted filter screen cutting ring in opposite directions, and not only the machine is cut the net and is replaced the manual work and improved work efficiency, and more importantly has guaranteed the depth of parallelism of cutting the net both sides, makes the filter screen more inseparable with the upper and lower end cover cooperation, avoids media such as gas-liquid can follow the clearance of reserving between filter screen and the filter and pass through and play the filtering action not to whole result in use that has improved the filter.

Cutting edge 4 is with filter screen 6 cutting back, and rotatory back of a knife blade 5 can grind the cutting surface, and the roughness Ra that sets up back of a knife blade 5 through experimental analysis is 0.2, and the thickness and the ferronickel material of adaptation filter screen that can be fine get rid of the deckle edge burr of cutting plane make the regularity of cutting the net both sides improve greatly, and the fish tail of fitting surface is avoided to the filter shaping back, thereby avoids the further expansion of fit clearance to influence the result of use.

After the ferronickel filter screen with the thickness of 0.2-0.5 mm is cut, a curled edge is generated at the cutting position (the left side edge is rolled upwards, and the right side edge is rolled downwards). The cutting knife of this embodiment structure can be fit for very much cutting the thick ferronickel filter screen of 0.2 ~ 0.5mm, and it is smooth to cut edge after the cutting, and the roughness is high, has improved the leakproofness of filter. The invention has reasonable structure, ingenious design, strong adaptability and good economic benefit.

Claims

1. The utility model provides a filter screen cutting ring which characterized in that: the cutting tool comprises a main cutting knife (1) and an auxiliary cutting knife (2), wherein the main cutting knife (1) and the auxiliary cutting knife (2) respectively comprise a cutting edge (4) and a knife back (5), the surface of the knife back (5) is subjected to frosting treatment, and the surface roughness Ra of the knife back (5) is 0.11-0.25; the cutting edges (4) of the main cutting knife (1) and the auxiliary cutting knife (2) are matched together, and the main cutting knife (1) and the auxiliary cutting knife (2) rotate oppositely.

2. The screen cutting ring according to claim 1, wherein: the cutting edge angle alpha of the cutting edge (4) is 70-85 degrees, the back angle beta of the knife back (5) is 45-70 degrees, the cutting edge width a is 0.2-0.5 mm, the knife back width b is 0.8-2 mm, and the overlap ratio c is 2-4 mm.

3. The screen cutting ring according to claim 2, wherein: the cutting edge angle alpha of the cutting edge (4) is 80 degrees, the back angle beta of the knife back (5) is 55 degrees, the cutting edge width a is 0.3mm, the knife back width b is 1.5mm, and the contact ratio c is 3 mm.

4. The screen cutting ring according to claim 1, wherein: cutting main sword (1) and cutting auxiliary knife (2) on be equipped with through-hole (3), lock screw is built-in to through-hole (3), cutting main sword (1) and cutting auxiliary knife (2) position on the cutting roller can be according to adjusting about the width of cutting the filter screen.