CN203564872U

CN203564872U - Filtering screen

Info

Publication number: CN203564872U
Application number: CN201320763311.4U
Authority: CN
Inventors: 徐春招; 周春香
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2014-04-30
Anticipated expiration: 2023-11-28

Abstract

The utility model discloses a filtering screen. The filtering screen comprises a plate body and filtering hole units distributed in the plate body; each filtering hole unit comprises a groove; a plurality of filter holes penetrating through the plate body and communicated with the corresponding groove are formed in the bottom of each groove; the grooves and the filtering holes are all cylindrical; a plurality of mounting holes are formed in the peripheral edge position of the plate body; the plate body surface is a smooth surface. Impurities and plastic adhered to the filtering screen do not need to be cleaned by incineration, so air pollution is not caused, even the work surfaces of the filtering holes are abraded, the filtering holes can be reused after being ground by a grinder, the apertures of the work surfaces of the filtering holes are not changed due to the lowering of the work surfaces, the service life is ensured, and the production cost is further reduced; impurities not according with demands cannot enter the filtering holes, so the quality of plastic particles is ensured.

Description

A kind of screen pack

Technical field

The utility model relates to a kind of screen pack.

Background technology

Along with increasing of house refuse, the regeneration of waste or used plastics has become the task of top priority, plastic granulating extrusion equipment is also used more and more extensively, filter in equipment has very important effect, the screen pack that plays impurity screening effect in filter more seems and is even more important, but the screen pack on market adopts silk screen mostly, disposable perforation thin plate filter, cylindrical shape screen pack and this Four types of bellmouth screen pack, wherein the filterability of silk screen and disposable perforation thin plate filter still can, can be in filter process, more than impurity is removed by it, some are also sticked to silk screen and filter surface by the plastics of hot mastication, and the as easy as rolling off a log deposition of the impurity on silk screen and filter surface, cause runner to stop up, but due to the structural design of silk screen and filter, cannot remove its surperficial impurity by scraper, so need in process of production frequently to change silk screen and filter, if reuse silk screen and the filter changed, silk screen and filter need be burned, making to adhere to superincumbent impurity and plastics is eliminated totally, but in burning process, incessantly caused the waste of resource, and burn the gas producing and also natural air has been caused to pollution, and cylindrical shape screen pack is by clamp-oning the plastics after softening from cylinder both sides, filtering holes from stack shell is extruded again, this mode causes the extremely difficult cleaning of the impurity in stack shell.

And the screen pack of use bellmouth filter type, although without the frequent web plate of changing, operating efficiency is high, also can not cause the waste of resource, but the filtering holes aperture of bellmouth screen pack becomes large gradually by little, in process of production, the scraper of cleaning impurity constantly and screen pack is surperficial rubs, cause filtering hole wearing and tearing more serious, because filtering holes is cone-shaped, therefore filtering holes working face aperture becomes large, easily cause impurity to enter filtering holes, plastic products quality is impacted, screen pack is in constantly producing, working face can cause working face to become uneven with continuous contact of scraper, at this moment need by grinding machine processing, make becoming of screen pack working face level and smooth, but after processing like this, cause working face to decline, it is large that the working face aperture of filtering holes also becomes thereupon, also be subject to the service life of screen pack having a strong impact on.

Summary of the invention

The utility model to solve existing screen pack due to design problem need production process frequently change web plate cause inefficiency and need by burn just can reuse or when filtering holes working face occur wear and tear time easily make impurity enter filtering holes and affect the screen pack technical problem in service life.

The technical scheme in the invention for solving the above technical problem is:

The utility model discloses a kind of screen pack, comprises plate body and is distributed in the filtering holes unit on plate body, it is characterized in that: described filtering holes unit comprises groove; Described groove bottom land is provided with some filtering holes that run through plate body and be communicated with groove; Described groove and filtering holes are all cylindrical; Described plate body surrounding is provided with some installing holes along position; Described plate body surface is shiny surface.

Described groove diameter magnitude range is 1 to 10 millimeter; Described filtering holes diameter scope is 0.1 to 3 millimeter; Described groove diameter is greater than filtering holes diameter.

Seven filtering holes that described filtering holes unit is communicated with by single groove with it form; Described filtering holes unit is staggered with nine of rows and a rule of arranging eight.

Described screen pack is steel plate material.

The beneficial effects of the utility model are:

Compared with prior art, adopt the screen pack of the utility model structure, because plate body surface is shiny surface, so when finding that Impurity deposition causes the situation of filtering holes hole obstruction on screen pack surface, without screen pack is disassembled and cleared up, only need to start in the equipment that is arranged on scraper slave plate surface for clearing up impurity inswept, just impurity can be cleaned out rapidly, not only in process of production without the frequent screen pack of changing, improved operating efficiency, and without by burning to clear up the impurity and the plastics that stick on screen pack, therefore can not pollute air.

Compared with prior art, adopt the screen pack of the utility model structure, because filtering holes is cylindrical, so filtering holes diameter is from top to bottom all the same, even if filtering holes working face weares and teares, filtering holes working face aperture also can not change, therefore undesirable impurity still cannot enter in filtering holes, guaranteed the quality of plastic grain, even and if screen pack working face needs to be polished by grinding machine after impaired, filtering holes working face aperture also can not change because working face declines, ensured service life, more reduced production cost.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model screen pack;

Fig. 2 is the rearview of the utility model screen pack;

Fig. 3 is the front view of the utility model screen pack.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:

Refer to Fig. 1 to Fig. 3, the utility model provides a kind of screen pack, comprises plate body (1) and is distributed in the filtering holes unit (2) on plate body, and described filtering holes unit (2) comprises groove (3); Described groove (3) bottom land is provided with some filtering holes (4) that run through plate body (1) and be communicated with groove (3); Described groove (3) is all cylindrical with filtering holes (4); Described plate body (1) surrounding is provided with some installing holes (5) along position, screen pack is fixedly mounted on the die head the inside of plastic extruding pelletization equipment by being located at the installing hole (5) on edge, plate body surrounding; Described plate body (1) surface is shiny surface.

Because plate body (1) surface is shiny surface, so when finding that Impurity deposition causes the situation of filtering holes (4) working face hole obstruction on screen pack surface, without screen pack is disassembled and cleared up, only need to start in the equipment that is arranged on scraper slave plate surface for clearing up impurity inswept, just impurity can be cleaned out rapidly, not only in process of production without the frequent screen pack of changing, improved operating efficiency, and without by burning to clear up the impurity and the plastics that stick on screen pack, therefore can not pollute air; Because filtering holes (4) is cylindrical, so filtering holes (4) diameter is from top to bottom all the same, even if filtering holes working face weares and teares, filtering holes working face aperture also can not change, therefore undesirable impurity still cannot enter in filtering holes (4), guaranteed the quality of plastic grain, even and if screen pack working face needs to be polished by grinding machine after impaired, filtering holes (4) working face aperture also can not change because working face declines, ensure service life, more reduced production cost.

Described groove (3) diameter scope is 1 to 10 millimeter; Described filtering holes (4) diameter scope is 0.1 to 3 millimeter; Described groove (3) diameter is greater than filtering holes (4) diameter; Groove (3) is not single constant with filtering holes (4) diameter, it is the plastic grain in order to filter different size, and the effect of groove (3) is in order to reduce plastic liquid suffered resistance when the screen pack, therefore for groove can play this effect always, in actual design, groove (3) diameter is less than filtering holes (4) diameter never.

Described filtering holes unit (2) is comprised of single groove (3) and seven filtering holes (4) of being communicated with it; Described filtering holes unit (2) is staggered with nine of rows and a rule of arranging eight; Filtering holes unit (2) number and the arrangement be located on plate body clearly stipulate, can arrange as required; Filtering holes (4) in described filtering holes unit not necessarily will be set to seven, also can be other number, therefore based on the utility model, design, the number of filtering holes unit (2) and filtering holes (4) and arrangement mode are not single constant, can arrange according to reality is required, screen pack of the present utility model is compared with other screen packs, the in the situation that of same area, that filtering holes (4) is many is far away more than twice, has ensured smooth and easy when plastic liquid is by screen pack.

Described screen pack is steel plate material, steel plate characteristic is wear-resisting and firm, and by heat treatment, more strengthened the hardness of plate body, be very suitable for design of the present utility model, and based on design of the present utility model, the shape of plate body (1) is not only confined to square, also can be designed as circular plate body or the plate body of other shapes.

Claims

1. a screen pack, comprises plate body and is distributed in the filtering holes unit on plate body, it is characterized in that: described filtering holes unit comprises groove; Described groove bottom land is provided with some filtering holes that run through plate body and be communicated with groove; Described groove and filtering holes are all cylindrical; Described plate body surrounding is provided with some installing holes along position; Described plate body surface is shiny surface.

2. a kind of screen pack according to claim 1, is characterized in that: described groove diameter magnitude range is 1 to 10 millimeter; Described filtering holes diameter scope is 0.1 to 3 millimeter; Described groove diameter is greater than filtering holes diameter.

3. a kind of screen pack according to claim 1, is characterized in that: seven filtering holes that described filtering holes unit is communicated with by single groove with it form; Described filtering holes unit is staggered with nine of rows and a rule of arranging eight.

4. a kind of screen pack according to claim 1, is characterized in that: described screen pack is steel plate material.