CN103230699B - Arc-shaped groove for disc type vacuum filter and manufacturing method thereof - Google Patents

Abstract

The invention discloses an arc-shaped groove for a disc type vacuum filter. The arc-shaped groove comprises a groove body made of a nylon plastic material through one-time injection moulding, wherein the whole groove body is in an arc shape, the cross section of the groove body is U-shaped, a lapping plate extends out from one end of the bottom of the groove body, and the other end of the bottom of the groove body is provided with an lapping clamping groove; and the lapping plate is matched with the lapping clamping groove, a fixing hole is formed in the center of the bottom of the groove body, bent parts of the inner wall of the groove body are all in a smooth transition, and the thickness of the side wall of the groove body is gradually reduced from bottom to the edge. The arc-shaped groove provided by the invention has the beneficial effects that since one-time moulding is adopted on the basis of the full use of characteristics of the nylon plastic, the processing steps are simple, the operation is simple and convenient, small errors are caused, less materials is consumed, the processing time is short, and the production efficiency and quality of a product are greatly improved; and the installation is simple and convenient, a filter cloth is hardly abraded, and the sealability of a filter product is strengthened based on the effective use of tenacity and corrosion resistance of nylon plastic.

Description

Disc type filter deep-slotted chip breaker and preparation method thereof

Technical field

The present invention relates to a kind of disc type filter deep-slotted chip breaker and preparation method thereof.

Background technology

At present, disc type filter is filtering surface is discoidal vacuum filter, is the solid-liquid separation mechanics being become vacuum filtration by negative pressure shape, is to form negative pressure at filtrate (liquid place as the motive force of filtering.Deep-slotted chip breaker on disc type filter, for compressing the grating filter cloth in disc type filter, ensures sealing, as shown in Figure 1.Present deep-slotted chip breaker generally adopts steel arc groove 10, and as shown in Figure 2, steel arc groove 10 adopts a few block plate to weld together, and is buckled in filter cloth 11 outer and fixing with bolt 14, plays the effect of fixing filter cloth 11.The edge of steel arc groove 10 is general sharper, is easily galled by filter cloth 11 during use, thus destroys sealing, and is difficult to be formed negative pressure, affects the normal use of filter.Generally in order to prevent steel arc groove from galling filter cloth, can bind rubber blanket 12 at the edge tie string 13 of steel arc groove 10, so not only cost improves, and adds the amount of labour of workman, wastes time and energy.

The production process of steel arc groove 10 is loaded down with trivial details, needs roll bending, blanking (2 road), bending, assembly welding, boring, stings clearly, sprays paint, assembles in manufacturing process, amounts to 9 procedures, Production Time is long, error is comparatively large, and cost of manufacture is higher, extends the production cycle of filter.In use also there is corrosion-prone shortcoming in steel arc groove in addition.

Summary of the invention

For solving above technical deficiency, the invention provides a kind of disc type filter deep-slotted chip breaker and preparation method thereof, that reduce cost of manufacture, corrosion resistance is strong.

The present invention is achieved by the following measures:

A kind of disc type filter deep-slotted chip breaker of the present invention, comprises employing nylon plastic material

The cell body of single injection-molded, the entirety of described cell body is arc and cross section is U-shaped, the bottom end of cell body is outward extended with lapping plate, the bottom other end of cell body is provided with overlap joint draw-in groove, described lapping plate and overlap joint draw-in groove match, the bottom centre of cell body is provided with fixing hole, and the bending place of cell body inwall is and seamlessly transits, and the thickness of cell body sidewall reduces from bottom gradually to edge.

The material of above-mentioned cell body is nylon plastic(s), nylon plastic(s) raw material composed as follows, is weight portion: the polypropylene PP-GF40 of the polyamide 6 of 60 parts and 40 parts.

Above-mentioned cell body length is 320 ~ 330mm, and the width of cell body is 60 ~ 70mm, and the radian of cell body is π/9rad, thickness bottom cell body is 9 ~ 11mm, the length of described lapping plate is 22 ~ 27mm, and the length of described overlap joint draw-in groove is 29 ~ 34mm, and the width of lapping plate and overlap joint draw-in groove is 55 ~ 60mm.

A preparation method for disc type filter deep-slotted chip breaker, comprises the following steps:

A. be polyamide 6 and the weight portion of 60 parts by weight portion be that 40 parts of polypropylene PP-GF40 mix, and at 90 ~ 100 DEG C, dry 3 ~ 4 hours;

B. the material after being dried by step a carries out single injection-molded by injection machine and mould; Comprise filling stage, packing stage, cooling stage and ejection phase, wherein: filling phase temperature is 255-270 DEG C, injection pressure is 65-75 MPa, and injection flow is 60%-70%, and inject time is 3-5 S; Packing stage pressure is 60-70 MPa, and the dwell time is 10-15S, and the cooling stage time is 40-50S;

C. deburring deburring.

The invention has the beneficial effects as follows: this patent takes full advantage of the feature of nylon plastic(s), adopt disposal molding, operation is simple, and easy and simple to handle, error is little, and feed consumption is few, and process time is short, thus substantially increases production efficiency and the quality of product.Simple installation, filter cloth not easy to wear.Effectively make use of the toughness of nylon plastic(s), corrosion resistance, strengthen the sealing of filter product.

Accompanying drawing explanation

Fig. 1 is existing disc type filter structural representation.

Fig. 2 is the partial enlarged drawing that in Fig. 1, A goes out.

Fig. 3 is main TV structure schematic diagram of the present invention.

Fig. 4 is plan structure schematic diagram of the present invention.

Fig. 5 be B-B in Fig. 4 to structural representation.

Wherein: 10 steel arc grooves, 11 filter clothes, 12 rubber blankets, 13 tie strings, 14 bolts, 20 cell bodies, 21 overlap joint draw-in grooves, 22 lapping plates, 23 fixing holes.

Detailed description of the invention

As shown in Fig. 3,4,5, a kind of disc type filter deep-slotted chip breaker of the present invention, comprises and adopting

With the cell body 20 of nylon plastic material single injection-molded, product error is little, good airproof performance.Within in normal production 3 minutes, just can produce 1, yield rate is high, greatly shortens the fabrication cycle of filter.Only need early investment die cost, production cost is low.The entirety of cell body 20 is arc and cross section is U-shaped, the bottom end of cell body 20 is outward extended with lapping plate 22, the bottom other end of cell body 20 is provided with overlap joint draw-in groove 21, lapping plate 22 and overlap joint draw-in groove 21 match, the bottom centre of cell body 20 is provided with fixing hole 23, the bending place of cell body 20 inwall is and seamlessly transits, and the thickness of cell body 20 sidewall reduces from bottom gradually to edge.Cell body 20 is buckled in outside filter cloth, is fixed through fixing hole 23 by means of only bolt, and existing similar, and be also overlap joint before and after adopting, namely the lapping plate 22 of previous cell body 20 rides on the overlap joint draw-in groove 21 of a rear cell body.

The material of cell body 20 is nylon plastic(s), nylon plastic(s) raw material composed as follows, is weight portion: the polypropylene PP-GF40 of the polyamide 6 of 60 parts and 40 parts.Cell body 20 length is 320 ~ 330mm, the width of cell body 20 is 60 ~ 70mm, the radian of cell body 20 is π/9rad, thickness bottom cell body 20 is 9 ~ 11mm, the length of described lapping plate 22 is 22 ~ 27mm, the length of described overlap joint draw-in groove 21 is 29 ~ 34mm, and the width of lapping plate 22 and overlap joint draw-in groove 21 is 55 ~ 60mm.Owing to adopting nylon plastic(s) and rational design size, make cell body 20 be not easy filter cloth to wear and tear bad, save the operation of original bound rubber pad, easier for installation, save trouble and labor.The features such as nylon plastic(s) has good toughness, good corrosion resistance, easily processes, and cost is low.Under disc type filter is not very high prerequisite for the requirement of strength of deep-slotted chip breaker, the advantage of nylon plastic(s) is selected to be far longer than rigid material.

A preparation method for disc type filter deep-slotted chip breaker, comprises the following steps:

A. be polyamide 6 and the weight portion of 60 parts by weight portion be that 40 parts of polypropylene PP-GF40 mix, and at 90 ~ 100 DEG C, dry 3 ~ 4 hours;

B. the material after being dried by step a carries out single injection-molded by injection machine and mould; Comprise filling stage, packing stage, cooling stage and ejection phase, wherein: filling phase temperature is 255-270 DEG C, injection pressure is 65-75 MPa, and injection flow is 60%-70%, and inject time is 3-5 S; Packing stage pressure is 60-70 MPa, and the dwell time is 10-15S, and the cooling stage time is 40-50S;

C. deburring deburring.

The above is only the preferred embodiment of this patent; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the art of this patent principle; can also make some improvement and replacement, these improve and replace the protection domain that also should be considered as this patent.

Claims (2)

1. a disc type filter deep-slotted chip breaker; it is characterized in that: comprise the cell body adopting nylon plastic material single injection-molded; the entirety of described cell body is arc and cross section is U shape; the bottom end of cell body is outward extended with lapping plate; the bottom other end of cell body is provided with overlap joint draw-in groove, and described lapping plate and overlap joint draw-in groove match, and the bottom centre of cell body is provided with fixing hole; the bending place of cell body inwall is and seamlessly transits, and the thickness of cell body sidewall reduces from bottom gradually to edge; The material of described cell body is nylon plastic(s), nylon plastic(s) raw material composed as follows, is weight portion: the polypropylene PP-GF40 of the polyamide 6 of 60 parts and 40 parts; Described cell body length is 320 ~ 330mm, and the width of cell body is 60 ~ 70mm, and the radian of cell body is π/9rad, thickness bottom cell body is 9 ~ 11mm, the length of described lapping plate is 22 ~ 27mm, and the length of described overlap joint draw-in groove is 29 ~ 34mm, and the width of lapping plate and overlap joint draw-in groove is 55 ~ 60mm.

2. the preparation method of disc type filter deep-slotted chip breaker as described in claim 1, is characterized in that, comprise the following steps:

A. to be the polyamide 6 of 60 parts and weight portion by weight portion be, and the polypropylene PP-GF40 of 40 parts mixes, and at 90 ~ 100 DEG C, dries 3 ~ 4 hours;

B. the material after being dried by step a carries out single injection-molded by injection machine and mould; Comprise filling stage, packing stage, cooling stage and ejection phase, wherein: filling phase temperature is 255-270 DEG C, injection pressure is 65-75 MPa, and injection flow is 60%-70%, and inject time is 3-5 s; Packing stage pressure is 60-70 MPa, and the dwell time is 10-15s, and the cooling stage time is 40-50s;

C. deburring deburring.