CN201006360Y - Framework of hornet nest type thread-winding filter element - Google Patents

Abstract

The utility model discloses a skeleton of honeycomb winding filter element of filter device technical field, comprising a cylinder metal body which side wall is provided with a plurality of filter holes and surface is arranged with a protrusion in screw ascending, wherein the top of the protrusion is provided with a weld seam. When in production, first punches a plurality of filter holes on a thin plate, presses fold edges on two sides of the thin plate, coils the plate in screw shape, to butt the fold edge with the fold edge of next screw to form a protrusion, and welds on the top of the protrusion into cylinder shape, cuts, and winds wire to form the filter element. The protrusion can avoid winding slide, to obtain regular winding, and the end face after installment can be easily sealed with better filter effect. The protrusion has strength bar function, to improve the strength of the body. And the weld point is at the top of the protrusion, therefore the filter holes at two sides of the weld seam can be approached each other to improve the filter effective area. The utility model can be used in the filter device of water and oil liquids.

Description

The skeleton of duolateral wire-wound filter core

Technical field

The utility model relates to a kind of filter, particularly a kind of duolateral frame of filter element.

Background technology

In the prior art, a kind of duolateral wire-wound filter core is arranged, its inboard is a skeleton, and this skeleton comprises a cylindrical metal body, offers some filter openings on the body sidewall, and body is provided with an axial weld seam, and the skeleton outside is provided with the coiling filter course; During work, filter core is installed in the filter, liquid enters from the body two ends, passes filter opening again, flows away after the coiling filter course filters then.Its weak point is: the intensity of the skeleton of this duolateral wire-wound filter core is low, and during coiling, line and skeleton adhesive force are little, and line is slippage easily on skeleton, makes the out-of-flatness of filter core two ends, and it is poor to seal, and influences filter effect; During fabrication, earlier in sheet metal upper punch press filtration hole, then sheet metal is rolled into after the circle again with the axial seam weld seam, be convenient welding, the filter opening of punching press will leave weld seam one segment distance, behind the welding fabrication, because the wider width of the part of the no filter opening of weld seam both sides makes filter efficiency lower.

The utility model content

For addressing the above problem, the utility model provides a kind of skeleton of duolateral wire-wound filter core, and the frame strength that makes is big, and coiling is convenient stable, good filtration effect.

For solving the problems of the technologies described above, the skeleton of the duolateral wire-wound filter core that the utility model provides comprises the cylindrical metal body, offers some filter openings on the body sidewall, and described body surface is provided with the convex ridge that rises in the shape of a spiral, and the top of convex ridge is provided with weld seam.

When the utility model is made, some filter openings of punching press on thin plate earlier, during welding, the both sides of the edge that will cut into the thin plate of strip earlier extrude flanging, then thin plate is rolled twist, made the flanging formation convex ridge that aligns with the flanging of next spiral, and weld on the top of convex ridge, make sheet metal form tubular, formation filter core again cuts off, winds the line; Because the existence of convex ridge is arranged, be difficult for during coiling sliding, wire winding layer is regular, rear end face is installed is sealed good filtration effect easily; Convex ridge itself plays reinforcement, the intensity of body is increased, compared with prior art, the utility model coiling is convenient, self intensity is big, it is more reliable to use, because pad is at the top of convex ridge, the filter opening of weld seam both sides can be more close, can increase the effective area of filtration, and the utility model can be applicable in the filter of water, wet goods fluid.

Description of drawings

Fig. 1 is this use new structure schematic diagram;

Fig. 2 is the vertical view of Fig. 1;

The specific embodiment

As figure, skeleton for duolateral wire-wound filter core, mainly include cylindrical metal body 1, this body 1 can be made by corrosion resistant plate, have corrosion-resistant, clean advantage easily, offer some filter openings 4 on body 1 sidewall, the surface of body 1 is provided with the convex ridge 2 that rises in the shape of a spiral, and the top of convex ridge 2 is provided with weld seam.

As wire winding layer 3 being arranged, can be made into filter core in body 1 arranged outside.

During manufacturing, some filter openings 4 of punching press on stainless sheet steel earlier, during welding, the both sides of the edge that will cut into the thin plate of strip earlier extrude flanging, then thin plate is rolled twist, flanging is alignd with the flanging of next spiral form convex ridge 2, and weld on the top of convex ridge 2, make sheet metal be welded into tubular, formation filter core again cuts off, winds the line; Because the existence of convex ridge 2 is arranged, be difficult for during coiling sliding, wire winding layer is regular, rear end face is installed is sealed good filtration effect easily; Convex ridge 2 itself plays reinforcement, and the intensity of body is increased.

Claims (1)

1. the skeleton of duolateral wire-wound filter core comprises the cylindrical metal body, offers some filter openings on the body sidewall, it is characterized in that: described body surface is provided with the convex ridge that rises in the shape of a spiral, and the top of convex ridge is provided with weld seam.

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