CN106042325A

CN106042325A - Back-flushing filtering dual-mold head

Info

Publication number: CN106042325A
Application number: CN201610677890.9A
Authority: CN
Inventors: 罗跃辉; 胡爱红; 陈元杰
Original assignee: Cixi Leap Machinery Equipment Co Ltd
Current assignee: Cixi Leap Machinery Equipment Co Ltd
Priority date: 2016-08-17
Filing date: 2016-08-17
Publication date: 2016-10-26

Abstract

The invention discloses a back-flushing filtering dual-mold head. Two sets of same filtering devices are mounted in a middle casing between an inlet casing and an outlet casing, an inlet switcher is mounted on the outer side of the inlet casing, a change-over switch and the inlet switcher form a rotating joint, and a regulator is mounted on the outer side of the outlet casing; a to-be-filter region on one side of the left filtering device and a to-be-filter region on one side of the right filtering device communicate with an inlet surface of the inlet switcher through inlet channels of the inlet casing, an inlet of the inlet switcher, and through holes of the change-over switch; a converging region on the other side of the left filtering device and a converging region on the other side of the right filtering device are connected with the regulator through converging channels and outlet channels of the outlet casing; and a slag removal machine base shared by the left filtering device and the right filtering device is mounted at the bottom of the left filtering device and the bottom of the right filtering device. Through switching of the inlet switcher, when one set of the filtering device is used for filtration, the other set of the filtering device drives a scraper through a power deice to remove impurities under backward punching of materials, the impurities are discharged to the casing through a slag removal machine, and circulation is performed sequentially, so that high-efficient filtration and impurity removal are realized without screen exchange.

Description

Backwash filter Double-mold-head

Technical field

The present invention relates to plastic filter die head, especially relate to a kind of backwash filter Double-mold-head.

Technical background

Plastic is daily production, requisite a kind of object of living, and for producing, manufacturing moulding of plastic The acquisition of material raw material, general employing petrochemical technology or waste plastic regeneration circulating technology.Employing petrochemical technology produces The mode of plastics, it is necessary to constantly consuming new petroleum resources, meanwhile, because plastics are the most degradable, the generation of new plastics makes to mould Material total amount is continuously increased, and is continuously increased white pollution；And the mode of waste plastic regeneration circulation makes old plastic regeneration For plastic raw materials, extensively welcome by plastic article industry because of its convenience, efficient, low cost.The main profit of waste plastic regeneration circulation Carry out with plastic granulator, and plastic granulator produce regenerated plastics it is critical only that filtration die head.

In prior art, occupy to utilize mild steel to burn silk for material braiding wire gauze as the filtration die head of filter assemblies Many, the feature of this filtration die head is, filtration is simple, can meet the requirement of most plastic reclaimed circulation pelletize, and it is not enough Part is the wire gauze as filtering keys assembly, it is necessary to often change, to prevent the blocking of filtration channel, meanwhile, for making The wire gauze changed can be continuing with, and often carries out batch and burns, and to remove the plastic residues in mesh gap, and this is at ring The modern society protecting pay attention to day by day is unallowed.Additionally, a kind of die head without silk screen filter also occurs at present, use and have one Determine the hard metal material of thickness as screen pack to replace wire gauze, and while web plate filters, constantly with scraper etc. Carrying out impurity screening removal, its advantage is that screen pack uses hard metal steel plate to replace wire gauze, passes through while filtering Scraper remove impurity, can be changed without drainage screen with life-time service, be disadvantageous in that, its filter effect need to improve, life-time service It may happen that blocking.

Summary of the invention

For overcoming, background technology exists the situation deficiency that silk screen burning is polluted and had much room for improvement without silk screen filter efficiency, this The purpose of invention is to provide a kind of backwash filter Double-mold-head, is that a kind of filter effect is preferably without silk screen backwash filter mould Head.

In order to achieve the above object, the technical solution used in the present invention is:

In present invention central enclosure between suction casing and outlet housing, the identical left defecator of structure and the right side are installed Defecator, suction casing lateral surface constitutes revolute pair with entrance switch equipped with entrance switch, one end of switching switch, cuts The other end and the first rotary power unit that change switch connect, and outlet hull outside face is equipped with actuator；Left defecator side Region to be filtered through the left entry passage of suction casing, the left entry of entrance switch, the left through hole of switching switch and entrance The inlet face connection of switch, region is confluxed through exporting the left busway of housing, exporting and lead in a left side for left defecator opposite side Road is connected with actuator；The region to be filtered of right defecator side is through the right entry passage of suction casing, entrance switch Right entry, the right through hole of switching switch connect with the inlet face of entrance switch, conflux region in the right side of right defecator opposite side It is connected with actuator through the outlet right busway of housing, exit passageway.

Described left defecator is identical with right filter apparatus configuration；Left defecator, including left sieve plate, left sieve plate supports Seat, left scraper component；Described left scraper component, including left piston shoes, left spring, left scraper body and the left edge of a knife；Bottom left piston shoes Slide rail face internal with central enclosure is adjacent to slide, and the left edge of a knife being arranged on left scraper body is compressed by left piston shoes by left spring At left sieve plate one side, the plane that left sieve plate another side supports seat one end with left sieve plate is adjacent to, and left sieve plate supports the seat other end It is pressed on outlet case inside face by supporting foot, the first straight-line power device drives left scraper component to make up and down by connecting rod Mobile, the one side that the one side that left sieve plate contacts with left scraper component has aperture, left sieve plate and left sieve plate support seated connection tactile has Macropore, the hole that left sieve plate supports on seat connects with the shoulder hole of left sieve plate, installs shared slag-discharging device bottom left and right defecator Base, slag-discharging device chassis left side has left slagging channel, and the entrance of left slagging channel connects with the left slag releasing channel of central enclosure, The outlet of left slagging channel and the through-hole alignment on left bank slag switch and ft connection, at the bottom of one end of left bank slag switch and slag-discharging device Seat endoporus becomes revolute pair, the other end of left bank slag switch to be connected by Left Drive connector and the second rotary power unit.

Described actuator, including overflow plug, regulation spring and regulation bolt；Regulation bolt stretches in actuator, regulation One end of spring is pressed on regulation bolt shoulder, and the other end of regulation spring is pressed in overflow plug endoporus plane, overflow plug Block exit passageway.

Described left sieve plate has a diameter of 0.1-1mm aperture with the one side of left scraper into contact, and left sieve plate supports seat with sieve plate Contact one side have a diameter of 3-10mm macropore, left sieve plate be shaped as polygon or circle.

Described first straight-line power device is that oil cylinder directly drives or driven by motor leading screw or driven by motor rack drives.

Described first rotary power unit and the second rotary power unit are motor direct-drive or oil cylinder drive slide crank Block mechanism drives.

Compared with background technology, the invention have the advantages that:

1) present invention uses sieve plate that hard, wear-resistant alloy makes, scraper to carry out filtering and go deimpurity form, makes filtration fill Put and burn without changing silk screen, its compact conformation, protect environment simultaneously.

2) die head of the present invention be Double-mold-head filter respectively, remove impurity form, when one die head carries out filtering, another die head By back-flushing structure, impurity reversely being gone out sieve plate filtering holes, struck off slag-discharging device by scraper simultaneously and discharge, this mode is gone Removal of impurity effect is more preferable, in hgher efficiency.

3) backwashing pressure of the present invention is adjustable, under extreme case, can be blocked completely by exit passageway so that backwash pressure Power is maximum, does not now filter the impurity on cleaned die head sieve plate by utmost removing another, now, though making production suspend, But sieve plate impurity-eliminating effect is best, typically carry out after long-time filtration.

4) entrance switch of the present invention switching switch, the scraper of defecator, slag-discharging device deslagging switch all use oil cylinder, Motors etc. are driven, by the relevant oil cylinder of design, the action logic of motor and movement time, in conjunction with PLC equal controller, and can To realize the Full-automatic filter of the present invention, remove impurity, tapping process, automaticity is high, and human intervention is few, saves labour force.

Accompanying drawing explanation

Fig. 1 is apparatus of the present invention structural upright structural representations.

Fig. 2 is front of the present invention internal view.

Fig. 3 is front entrance view of the present invention.

Fig. 4 is the back side of the present invention outlet view.

Fig. 5 is the A-A sectional view of Fig. 3 of the present invention.

Fig. 6 is filter element internal view of the present invention.

Fig. 7 is the B-B sectional view of Fig. 3 of the present invention.

Fig. 8 is the C-C sectional view of Fig. 4 of the present invention.

In figure: 1, entrance switch；2, suction casing；3, central enclosure；4, outlet housing；5, left sieve plate；6, left sieve plate Support seat；7, connecting plate；8, left scraper component；9, left slagging channel；10, left bank slag switch；11, switching switch；12, conflux in a left side Region；13, left entry passage；14, left busway；15, the first straight-line power device；16, the first rotary power unit；17 Two rotary power units；18, inlet face；19, actuator；20, left slag releasing channel；21, the second straight-line power device；22, the 3rd Rotary power unit；23, Left Drive connector；24, right scraper component；25, right slag releasing channel；26, right slagging channel；27, right Deslagging switchs；28, right sieve plate；29, right sieve plate supports seat；30, right entry passage；31, right busway；32, the right side is in transmission connection Part；33, left entry；34, right entry；35, exit passageway；36, left piston shoes；37, left spring；38, the left edge of a knife；39, overflow plug； 40, regulation spring；41, regulation bolt；42, conflux region in the right side；43, left region to be filtered；44, right region to be filtered；45, a left side is scraped Cutter body；46, slag-discharging device base；47, right scraper body；48, right piston shoes；49, right spring；50, the right edge of a knife.

Detailed description of the invention

The invention will be further described with embodiment below in conjunction with the accompanying drawings.

As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 7, Fig. 8, present invention central enclosure 3 between suction casing 2 and outlet housing 4 In, the identical left defecator of structure and right defecator are installed, suction casing 2 lateral surface is equipped with entrance switch 1, switching One end of switch 11 and entrance switch 1 constitute revolute pair, and the other end of switching switch 11 and the first rotary power unit 16 are even Connecing, outlet housing 4 lateral surface is equipped with actuator 19；The region to be filtered, a left side 43 of left defecator side is through a left side for suction casing 2 Access road 13, the left entry 33 of entrance switch 1, the left through hole of switching switch 11 connect with the inlet face 18 of entrance switch 1 Logical, region 12 is confluxed through the outlet left busway 14 of housing 4, exit passageway 35 and actuator in a left side for left defecator opposite side 19 connect；The region to be filtered, the right side 44 of right defecator side is through the right entry passage 30 of suction casing 2, entrance switch 1 Right entry 34, the right through hole of switching switch 11 connect with the inlet face 18 of entrance switch 1, the right remittance of right defecator opposite side Stream region 42 is connected with actuator 19 through the outlet right busway 31 of housing 4, exit passageway 35.

Switched by entrance switch 1, when making a sets filtering device filter, as a example by right defecator, another set of Defecator, as a example by left defecator, drives left scraper part by the first straight-line power device 15 under the reverse punching press of material Part 8 carries out remove impurity, and impurity is through the slag releasing channel 20 of central enclosure 3, the slagging channel 9 of slag-discharging device base 23, left bank slag switch 10 Through hole discharge housing, successively left and right switching circulation, thus realize without the high efficiency filter of draping and remove impurity.Switching switch 11 leads to Cross the first rotary power unit 16 to drive, it is achieved left entry 33 and the switching of right entry 34, when an entrance is opened, another Entrance is closed.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 5, Fig. 6, Fig. 8, described left defecator is identical with right filter apparatus configuration；Left mistake Filter device, including left sieve plate 5, left sieve plate supports seat 6, left scraper component 8；Described left scraper component 8, including left piston shoes 36, a left side Spring 37, left scraper body 45 and the left edge of a knife 38；Bottom left piston shoes 36, slide rail face internal with central enclosure 3 is adjacent to slide, left cunning The left edge of a knife 38 being arranged on left scraper body 45 is pressed on left sieve plate 5 one side by left spring 37 by boots 36, and left sieve plate 5 is another The plane that one side supports seat 6 one end with left sieve plate is adjacent to, and left sieve plate supports seat 6 other end and is pressed on outlet shell by supporting foot Body 4 medial surface, the first straight-line power device 15 is arranged on outside housing by connecting plate 7, and the first straight-line power device 15 is by even Bar drives left scraper component 8 to move up and down, and the one side that left sieve plate 5 contacts with left scraper component 8 has an aperture, left sieve plate 5 and Left sieve plate supports the one side of seat 6 contact and has macropore, and the hole that left sieve plate supports on seat 6 connects with the shoulder hole of left sieve plate 5, left, Installing shared slag-discharging device base 46 bottom right defecator, have left slagging channel 9 on the left of slag-discharging device base 46, left bank slag leads to The entrance in road 9 connects with the left slag releasing channel 20 of central enclosure 3, the outlet of left slagging channel 9 and leading on left bank slag switch 10 Hole alignment and ft connection, one end of left bank slag switch 10 becomes revolute pair with slag-discharging device base endoporus, left bank slag switch 10 another One end is connected with the second rotary power unit 17 by Left Drive connector 23.

Right defecator, including right sieve plate 28, right sieve plate supports seat 29, right scraper component 24；Described right scraper component 24, Including right piston shoes 48, right spring 49, right scraper body 47 and the right edge of a knife 50；Slide rail internal with central enclosure 3 bottom right piston shoes 48 Face is adjacent to slide, and the right edge of a knife 50 being arranged on right scraper body 47 is pressed on right sieve plate 28 by right spring 49 by right piston shoes 48 One side, the plane that right sieve plate 28 another side supports seat 29 one end with right sieve plate is adjacent to, and right sieve plate supports seat 29 other end and leads to Crossing support foot and be pressed on outlet housing 4 medial surface, the first straight-line power device 15 is arranged on outside housing by connecting plate 7, and second Straight-line power device 21 drives right scraper component 24 to move up and down by connecting rod, and right sieve plate 28 contacts with right scraper component 24 One side has aperture, and the one side that right sieve plate 28 contacts with right sieve plate support seat 29 has macropore, and right sieve plate supports the hole on seat 29 Connecting with the shoulder hole of right sieve plate 28, install shared slag-discharging device base 46 bottom left and right defecator, slag-discharging device base 46 is right Side has right slagging channel 26, and the entrance of right slagging channel 26 connects with the right slag releasing channel 25 of central enclosure 3, right slagging channel The outlet of 26 and the through-hole alignment on right deslagging switch 27 and ft connection, in one end of right deslagging switch 27 and slag-discharging device base Hole becomes revolute pair, the other end of right deslagging switch 27 to be connected with the 3rd rotary power unit 22 by right transmission connection piece 32.

As shown in Figure 7, Figure 8, described actuator 19, including overflow plug 39, regulation spring 40 and regulation bolt 41；Regulation Bolt 41 stretches in actuator 19, and one end of regulation spring 40 is pressed on regulation bolt 41 shoulder, the other end of regulation spring 40 Being pressed in overflow plug 39 endoporus plane, overflow plug 39 blocks exit passageway 35.Actuator 19 can also be to be only capable of controlling The valve that mouth passage 35 is opened and closed；Or can not also use actuator 19, but the overflow section of now exit passageway 35 The long-pending overflow section being necessarily less than the outlet upper left busway of housing 4 14 and right busway 31 amasss.

As shown in Figure 5, Figure 6, it is little that the one side that described left sieve plate 5 contacts with left scraper component 8 has a diameter of 0.1-1mm Hole, the one side that left sieve plate 5 contacts with left sieve plate support seat 6 has a diameter of 2-10mm macropore, and the hole on the most left sieve plate 5 is ladder Shape hole；Equally, the one side that described right sieve plate 28 contacts with right scraper 24 has a diameter of 0.1-1mm aperture, and right sieve plate 28 is with right Sieve plate supports the one side of seat 29 contact and has a diameter of 2-10mm macropore, and the hole on the rightest sieve plate 28 is stepped bore.Left sieve plate 5 It is polygon or circle with the shape of right sieve plate 28.

Described first straight-line power device 15 and the second straight-line power device 21 are that oil cylinder directly drives or motor belt motor movable wire Thick stick or driven by motor rack drives.

Described first rotary power unit the 16, second rotary power unit 17 and the 3rd rotary power unit 22 are that motor is straight Connect driving or oil cylinder drives slider-crank mechanism to drive.

The operation principle of the present invention is as follows:

Filtering die head and be arranged on plastic granulator end, the inlet face 18 of entrance switch 1 is close to plastic granulator heating cylinder Discharging opening, the screw extruding entrance entrance switch 1 in melted plastic warp plastic granulator heating cylinder to be filtered, now, Drive switching switch 11 selection left entry 33 or right entry 34 by the first rotary power unit 16, open with left entry 33, As a example by right entry 34 is closed, melted plastic warp left entry 33 enters into the left entry passage 13 of suction casing 2, then is flowed into In the left defecator of portion's housing 3, during flowing through left defecator, molten plastic to be filtered is constantly by left sieve plate 5 Carrying out filtering and impurity removing, now, impurity is blocked in left sieve plate 5 near left entry 33 side, and the left slag releasing channel of the most open close mistake 20 sinks Shallow lake stores, after running up to a certain degree, by the second rotary power unit to the left slagging channel 9 of slag-discharging device base 46 17 drive left bank slag switch 10 discharge.Filter the region 12 of confluxing, a left side that molten plastic supports seat 6 at left sieve plate to assemble, flowed through out Behind the left busway 14 of mouthful housing 4, shunt in its exit, a road to exit passageway 35, another road to right busway 31, Withstood by regulation spring 40, regulation bolt 41 owing to exit passageway 35 is conditioned the overflow plug 39 of device 19, have certain Pressure, therefore, has filtered molten plastic and has been squeezed into the right busway 31 of outlet housing 4, and region 42 of confluxing on the right side has been assembled, right Right sieve plate 28 produces a reverse stamping press, and constantly increases, after reverse stamping press is more than the setting pressure of actuator 19, Overflow plug 39 is backed down, and has filtered molten plastic and has flowed out die head, has entered next process.Simultaneously as right sieve plate 28 is subject to The effect of the reverse punching press of molten plastic, makes originally to get lodged in the impurity in right sieve plate 28 filtering holes and is reversed and develops, now, the Two straight-line power devices 21 drive the action of right scraper component 24, scrape the removal of impurity, push the right slagging channel into slag-discharging device base 46 26.After a period of time, entrance switch 1 switches left entry 33 or right entry 34, circulates repetition successively.Remove for improving backwash Miscellaneous effect, under extreme case, can completely block exit passageway 35, carry kickback pressure to maximum, at this point it is possible to maximum The remove impurity of sieve plate is realized in degree.

Above-mentioned detailed description of the invention is used for illustrating the present invention rather than limiting the invention, it is also possible to have very Shape changeable.In the protection domain of spirit and claims of the present invention, any modifications and changes that the present invention is made, all fall Enter protection scope of the present invention.

Claims

1. backwash filter Double-mold-head, it is characterised in that: the central enclosure (3) between suction casing (2) and outlet housing (4) In, the identical left defecator of structure and right defecator are installed, suction casing (2) lateral surface equipped with entrance switch (1), One end of switching switch (11) and entrance switch (1) constitute revolute pair, and the other end of switching switch (11) and first rotates dynamic Power apparatus (16) connects, and outlet housing (4) lateral surface is equipped with actuator (19)；The region to be filtered, a left side of left defecator side (43) through the left entry passage (13) of suction casing (2), the left entry (33) of entrance switch (1), a left side for switching switch (11) Through hole connects with the inlet face (18) of entrance switch (1), and region (12) is confluxed through outlet shell in a left side for left defecator opposite side The left busway (14) of body (4), exit passageway (35) are connected with actuator (19)；The district to be filtered, the right side of right defecator side Territory (44) is through the right entry passage (30) of suction casing (2), the right entry (34) of entrance switch (1), switching switch (11) Right through hole connects with the inlet face (18) of entrance switch (1), and region (42) is confluxed through outlet in the right side of right defecator opposite side The right busway (31) of housing (4), exit passageway (35) are connected with actuator (19).

Backwash filter Double-mold-head the most according to claim 1, it is characterised in that: described left defecator and right filtration dress Put structure identical；Left defecator, including left sieve plate (5), left sieve plate supports seat (6), left scraper component (8)；Described left scraper Parts (8), including left piston shoes (36), left spring (37), left scraper body (45) and the left edge of a knife (38)；Left piston shoes (36) bottom with The internal slide rail face of central enclosure (3) is adjacent to slide, and left piston shoes (36) will be arranged on left scraper body (45) by left spring (37) On the left edge of a knife (38) be pressed on left sieve plate (5) one side, left sieve plate (5) another side supports seat (6) one end with left sieve plate Plane is adjacent to, and left sieve plate supports seat (6) other end and is pressed on outlet housing (4) medial surface by supporting foot, the first straight line move Power apparatus (15) drives left scraper component (8) to move up and down by connecting rod, and left sieve plate (5) contacts with left scraper component (8) One side has aperture, and the one side that left sieve plate (5) contacts with left sieve plate support seat (6) has macropore, and left sieve plate supports on seat (6) Hole connects with the shoulder hole of left sieve plate (5), installs shared slag-discharging device base (46), at the bottom of slag-discharging device bottom left and right defecator Seat (46) left side has the left slag releasing channel (20) of left slagging channel (9), the entrance of left slagging channel (9) and central enclosure (3) Connection, the outlet of left slagging channel (9) and the through-hole alignment on left bank slag switch (10) and ft connection, left bank slag switch (10) One end become revolute pair with slag-discharging device base endoporus, the other end of left bank slag switch (10) is by Left Drive connector (23) and the Two rotary power units (17) connect.

Backwash filter Double-mold-head the most according to claim 1, it is characterised in that: described actuator (19), including overflow Plug (39), regulation spring (40) and regulation bolt (41)；Regulation bolt (41) is stretched in actuator (19), regulation spring (40) One end be pressed in regulation bolt (41) shoulder on, regulation spring (40) the other end be pressed in overflow plug (39) endoporus plane, Overflow plug (39) blocks exit passageway (35).

Backwash filter Double-mold-head the most according to claim 2, it is characterised in that: described left sieve plate (5) and left scraper part The one side that part (8) contacts has a diameter of 0.1-1mm aperture, and left sieve plate (5) has with the one side contacted with sieve plate support seat (6) A diameter of 2-10mm macropore, left sieve plate (5) be shaped as polygon or circle.

Backwash filter Double-mold-head the most according to claim 2, it is characterised in that: described first straight-line power device (15) It is that oil cylinder directly drives or driven by motor leading screw or driven by motor rack drives.

Backwash filter Double-mold-head the most according to claim 1 and 2, it is characterised in that: described first rotary power unit (16) and the second rotary power unit (17) is motor direct-drive or oil cylinder drive slider-crank mechanism driving.