CN103658031A - Method for effectively tightening screen cloth and vibrating screen - Google Patents
Method for effectively tightening screen cloth and vibrating screen Download PDFInfo
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- CN103658031A CN103658031A CN201310678317.6A CN201310678317A CN103658031A CN 103658031 A CN103658031 A CN 103658031A CN 201310678317 A CN201310678317 A CN 201310678317A CN 103658031 A CN103658031 A CN 103658031A
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Abstract
The invention provides a method for effectively tightening screen cloth and a vibrating screen, and belongs to the technical field of material screening. The vibrating screen comprises a screen frame, a screen cloth rack, the screen cloth and a screen cloth tightening hooping strip, wherein the screen cloth rack is located in the screen frame. The method and the vibrating screen are characterized in that the screen cloth tightening hooping strip is placed on the inner wall of the screen frame, a through hole is formed in the position, corresponding to the screen cloth tightening hooping strip, of the screen frame, and one end of the screen cloth tightening hooping strip penetrates out of the through hole; when the screen cloth is replaced, firstly, the screen cloth is horizontally placed on the screen cloth rack, then, the screen frame is placed on the screen cloth and falls, and the screen cloth is attached to the outer wall of the screen cloth rack through the screen frame after being folded downward; the end of the screen cloth tightening hooping strip is connected with a tightening device, and the screen cloth tightening hooping strip is tightened up by operating the tightening device. The screen frame and the screen cloth tightening hooping strip are of an integral structure; when the screen cloth is replaced, a user only needs horizontally and neatly place on the screen cloth at the upper end of the screen cloth rack, then, the screen frame is placed on the screen cloth and falls at a time, and the screen cloth can be attached to the outer wall of the screen cloth rack after being bent through perpendicular falling of the screen frame, no manual work is needed when the screen cloth is bent, and no requirements for skill proficiency of operators exist.
Description
Technical field
The invention belongs to material screen selecting technology field, be specifically related to a kind of vibratory sieve.
Background technology
Enterprise extensively adopts vibratory sieve to select a minute material.Conventional vibratory sieve comprises screen frame, rack, screen cloth, the structure members such as net hoop bar, the spring being connected with screen frame, vibrating motor stretch tight.By Vibration on Start-up motor, carry out vibration screen, make small particles material pass screen cloth and leak down, large granular materials is just blocked on screen cloth.In vibratory sieve, screen cloth used generally adopts the braidings such as wire, nylon yarn to form, and the placement of screen cloth adopts horizontal or mostly with certain angle of inclination.On screen cloth, put into after material, be affected by gravity and make screen cloth tenesmus.The impact that screen cloth tenesmus brings is apparent, and because screen cloth tenesmus is constantly elongated every filament on screen cloth, filament just can be pulled off and causes screen cloth to damage and cannot screen in the course of time.In addition, in the middle of screen cloth, after tenesmus, also can reduce effective conduction of vibration force, cause the reduction of screening effect.
The problem that solves screen cloth tenesmus is the problem that relevant technical staff in the field constantly explores always.In order to address the above problem, people have taked many measures.One of measure is: below screen cloth, increase one deck screen cloth, lower one deck screen cloth, to playing support effect between the screen cloth of upper strata, prevents upper sieve pendant off the net with this again.Although increase the problem that screen cloth has solved single-deck screen pendant off the net, also bring new problem: during vibrating motor work, inevitably can be detained a part of material between two-layer screen cloth, the screening that has affected material is fallen; And because the amplitude of two-layer screen cloth is different, during vibration, constantly collision between upper and lower two-layer screen cloth, produces vibration friction, and the material friction in addition and between two-layer screen cloth, produces very galling to screen cloth.Facts have proved this scheme infeasible.
In the situation that not solving the easy tenesmus of screen cloth, the damage of screen cloth will be inevitably, once there is the situation of screen cloth damage, just need shutdown to change screen cloth.In prior art, change screen cloth process as follows:
(1) first the screen frame of machine top is pulled down, rack is taken out and placed on the ground;
(2) unclamp the net hoop bar that stretches tight, damaged screen cloth is torn out;
(3) new square screen cloth is applied ointment or plaster on rack, by bending after screen cloth leveling, make to apply ointment or plaster on rack outer wall after screen cloth bending;
(4) with the net hoop bar that stretches tight, first the screen cloth of below is tightened rear fastening with fastening bolt;
(5) then with the net hoop bar that stretches tight, the screen cloth on top is tightened rear fasteningly with fastening bolt, this process must guarantee that the upper surface of screen cloth is smooth and collapse tightly, need to repeatedly regulate and tighten screen cloth.
In above-mentioned draping process, adopt artificial bending screen cloth and leveling.Yet sieve gauze wire is made, have certain elasticity, need two people's good teamworks to bend, otherwise in bending process, screen cloth is easy to perk while manually bending, this technical ability to operative employee there are certain requirements.Moreover in prior art, the cavity between screen frame and rack is very narrow, certainly will require fastening bolt very short, and the very short rear operative employee's terminal operation of giving of fastening bolt is made troubles.If lengthen fastening bolt, will make the cavity between screen frame and rack broaden, once and cavity between screen frame and rack broadens and will bring difficulty or cost to sealing to rise.Based on this, consider, the cavity between existing vibratory sieve screen frame and rack is all very narrow, brings thus operational inconvenience.The unbusinesslike operative employee of the poor work of sense of responsibility, on foot in dealing with, so just can not effectively tighten screen cloth, and screen cloth tightly will not affect the service life that production also affects screen cloth.
If screen cloth relaxes after using a period of time, need again screen frame to be taken off and again tightens screen cloth.But owing to changing screen cloth, waste time and energy, so enterprise in use, if there is the lax situation of screen cloth, the secondary tight screen cloth that jumps again not, changes after can only waiting screen cloth to break down.
In existing draping process, need experienced operative employee's two people's cooperations and consuming time more than 40 minutes.Once need to change screen cloth in plant produced, just need to shut down.The time of changing screen cloth is longer larger on producing the impact bringing.
In industry, for preventing screen cloth tenesmus, convenient replacing screen cloth and screen cloth being carried out high-qualityly effectively tightening, solution well never.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of method and vibratory sieve of effectively tightening screen cloth is provided, can effectively prevent that screen cloth tenesmus, minimizing screen cloth from damaging and can change quickly again screen cloth and effectively tighten.
The present invention solves the scheme that its technical problem adopts: invent a kind of method of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, rack is positioned at screen frame, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; In the stretch tight position of net hoop bar of screen frame correspondence, offer through hole, the end of the net hoop bar that stretches tight passes in this through hole; While changing screen cloth, first screen cloth is lain on rack, then screen frame is placed on screen cloth and is fallen, screen frame will apply ointment or plaster on rack outer wall screen cloth after folding under screen cloth; The stretch tight end of net hoop bar connects tightening device, by the operation tightening device net hoop bar that will stretch tight, tightens up, and net hoop bar disengaging magnet screen cloth is tightened in tightening groove stretches tight; Fixed support body on rack, screen cloth connects by magnetic part with supporter upper end.
The another kind of method of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, rack is positioned at screen frame, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; In the stretch tight position of net hoop bar of screen frame correspondence, offer handle hole; While changing screen cloth, first screen cloth is lain on rack, then screen frame is placed on screen cloth and is fallen, screen frame will apply ointment or plaster on rack outer wall screen cloth after folding under screen cloth; The stretch tight end of net hoop bar connects tightening device, and instrument is put in and in handle hole, operates the tightening device net hoop bar that will stretch tight and tighten up, and net hoop bar disengaging magnet screen cloth is tightened in tightening groove stretches tight; Fixed support body on rack, screen cloth connects by magnetic part with supporter upper end.
The device adopting for solution the technology of the present invention problem is: invent a kind of vibratory sieve of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; Through hole is offered in the stretch tight position of net hoop bar end of screen frame correspondence, and the end of the net hoop bar that stretches tight passes in this through hole, and the end of the net hoop bar that stretches tight is connected on tightening device; Stretch tight and depart from magnet and screen cloth is tightened in tightening groove when net hoop bar tightens up; Vertical fixed support body on rack, iron plate is placed at screen cloth upper face center place, supporter top secured core, iron core is wound around solenoid outward, and solenoid energising produces magnetic attraction iron plate screen cloth is clamped.
The two ends that the net that stretches tight binds round bar intersect, in the afterbody machining screw of net hoop bar that stretches tight, clamp nut, positioning sleeve and location snap ring are set in tightening device, one end of positioning sleeve is that coaming plate, the other end with holes connects location snap ring, positioning sleeve is fixed on screen frame, clamp nut is sleeved on the thread segment of the net hoop bar that stretches tight, and clamp nut adopts staircase structural model, the large end of clamp nut between positioning sleeve coaming plate and location snap ring, small end passes location snap ring.
The another kind of device adopting for solution the technology of the present invention problem is: invent a kind of vibratory sieve of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; Stretch tight net hoop bar end relatively and be connected on tightening device, in the stretch tight position of net hoop bar end of screen frame correspondence, offer handle hole; Stretch tight and depart from magnet and screen cloth is tightened in tightening groove when net hoop bar tightens up; Vertical fixed support body on rack, iron plate is placed at screen cloth upper face center place, supporter top secured core, iron core is wound around solenoid outward, and solenoid energising produces magnetic attraction iron plate screen cloth is clamped.
Stretch tight net hoop bar for forming two semicircles of annular, wherein the end of the net hoop bar that stretches tight and another root stretch tight, and to bind round the corresponding end of bar relative close for net, connector, fastening bolt are set in tightening device, and connector is fixed on the end of the net hoop bar that stretches tight, and in two connectors, penetrates fastening bolt.
Compared with prior art, the invention has the beneficial effects as follows:
1. because screen frame and the net hoop bar that stretches tight are integral structure, while changing screen cloth, only screen cloth entirely need to be placed on rack
End, is then placed on screen frame the screen cloth last time to fall, and by vertically falling of screen frame, can after screen cloth bending, apply ointment or plaster on rack outer wall, does not need manually, by screen cloth bending, operative employee's technical ability qualification not to be required.
2. the two ends due to the net hoop bar that stretches tight connect tightening device, and tightening device can be positioned at outside, and the net that externally will stretch tight binds round that bar strains in the space in can be effectively fastening by screen cloth, easy to operate, and are not subject to operative employee's technical ability qualification and affect; Greatly simplify the replacing flow process of screen cloth, saved the draping time.
3. owing to having offered handle hole or tighten the net hoop bar that stretches tight from outside on screen frame outer wall, so if screen cloth is lax in producing, can directly tighten screen cloth by tightening device.Compared to the prior art, without screen frame is taken off, also without shutdown.
4. owing to being provided with sealing gasket on screen frame top, sealing gasket is tightly pressed on screen cloth, can not leak material.
5. owing to having connected supporter under screen cloth, screen cloth is subject to the support of supporter, and screen cloth middle part is tenesmus no longer, has avoided the infringement of screen cloth and has improved the effect of vibrosieve.
6. because supporter and screen cloth are connected together, during vibrating motor work, supporter has kept identical amplitude and frequency with screen cloth, supporter is vibration source, further strengthened vibration force, and avoided supporter to screen cloth because of asynchronous vibration cause wearing and tearing, extended service life of screen cloth, improved screening efficiency.
7. the present invention, without existing vibrating screen mesh is destroyed, does not need to customize special screens yet, on existing vibratory sieve basis, carries out simple modifications, and improvement cost is low, and applicability is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the local enlarged diagram in A place in Fig. 1;
Fig. 3 is the schematic diagram of the present invention while bending screen cloth;
Fig. 4 is the structural representation of first net embodiment that stretches tight of the present invention;
Fig. 5 is the local enlarged diagram in B place in Fig. 4;
Fig. 6 is the stretch tight structural representation of net embodiment of second of the present invention;
Fig. 7 is the structural representation of third embodiment of the invention.
In figure: 1 screen frame; 1.1 sealing ring; 1.2 slag-drip opening; 1.3 handle hole; 1.4 shelves; 1.5 positioning sleeve;
1.6 location snap rings; 1.7 through hole; 2 screen clothes; 3 racks; 3.1 tighten groove; 4 vibrating motors; 5 bases; 6 vibrating springs;
7 vibrating bodies; 8V type bundling ring; 9 stretch tight nets hoop bar; 9.1 thread segment; 10 sealing gaskets; 11 clamp nuts; 12 snap fits;
13 tight locking buttons; 14 fastening bolts; 15 nuts; 16 connectors; 17 magnets; 18 supporters; 19 iron plates;
20 solenoids; 21 iron cores.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described further:
Embodiment mono-
As shown in Figure 1,3, vibratory sieve of the present invention is mainly comprised of screen frame 1, screen cloth 2, rack 3, vibrating motor 4, base 5, vibrating spring 6 and vibrating body 7.Rack 3 is positioned at the cavity that screen frame 1 surrounds, and between rack 3 and screen frame 1, forms toroidal cavity.The screen cloth 2 net hoop bar 9 that stretched tight is tightened on rack 3.In the rack 3 vertical fixed support body 18 of central authorities, supporter 18 upper end secured cores 21, iron core 21 outer walls are wound with solenoid 20.On screen cloth 2, iron plate 19 is placed in the position of corresponding iron core 21.Iron core 21 forms electromagnet with the solenoid 20 that is wrapped in its outer wall.Vibration on Start-up motor 4, solenoid 20 energisings produce magnetic force, and moment attraction is placed in the iron plate 19 on screen cloth 2, then plays the effect that clamps screen cloth 2.Also can connect in iron core 21 upper ends another piece iron plate, thereby increase the contact area enhancing stability of screen cloth upper and lower surface and magnetic part.Meanwhile, vibrating body 7 vibrations, the bulky grain slag retaining on screen cloth 2 upper surfaces is discharged from slag-drip opening 1.2, and fines leaks down from screen cloth 2.
In the present embodiment, screen frame 1, rack 3 and screen cloth 2 are made by non-magnetic material, and the net hoop bar 9 that stretches tight adopts iron wire.On rack 3 outer walls, offer and tighten groove 3.1, the position of tightening groove 3.1 corresponding to rack 3 on screen frame 1 inwall arranges circle shelves 1.4, is positioned on screen frame 1 inwall of shelves 1.4 tops and fixes a circle magnet 17.Magnet 17 can adopt permanent magnet 17, also can adopt electromagnet.Under original state, the net hoop bar 9 that stretches tight is fixing by magnet 17 absorption on screen frame 1 inwall, and when tightening up while stretching tight net hoop bar 9, the net hoop bar 9 that stretches tight departs from magnets 17 and enters into tightening in groove 3.1 on rack 3.When needs change screen cloth 2 and lax stretching tight during net hoop bar 9, the net hoop bar 9 that stretches tight is returned on the magnet 17 on screen frame 1 by magnetic-adsorption.On screen frame 1 outer wall, offer through hole 1.7, the two ends of the net hoop bar 9 that stretches tight all pass in screen frame 1 through hole 1.7, and the two ends of the net hoop bar 9 that stretches tight intersect.As shown in the figure, in the equal machining screw section 9.1 of every end afterbody of net hoop bar 9 that stretches tight, by clamp nut 11, positioning sleeve 1.5 and location snap ring 1.6, form tightening device.One end of positioning sleeve 1.5 is that coaming plate 20.2, the other end with holes connects location snap ring 1.6, positioning sleeve 1.5 is fixed on screen frame 1, clamp nut 11 is sleeved on the thread segment 9.1 of the net hoop bar 9 that stretches tight, clamp nut 11 adopts staircase structural models, the large end of clamp nut 11 between positioning sleeve 1.5 coaming plates 20.2 and location snap ring 1.6, small end passes location snap ring 1.6.
It should be noted that, in the present embodiment, the groove 3.1 of tightening on the shelves 1.4 on screen frame 1 and rack 3 all has two-layerly up and down, shelves 1.4, corresponding with it tightens groove 3.1 in sustained height.Correspondingly be that the net hoop bar 9 that stretches tight also has two, each tightens one of the interior placement of the groove 3.1 net hoop bar 9 that stretches tight.The net hoop bar 9 that stretches tight of lower floor is tightened groove 3.1 for screen cloth 2 is tightened on rack 3, and net hoop bar 9 is stretched tight for screen cloth 2 upper surfaces are tightened in upper strata.
Magnetic part also can select magnetic patch to replace electromagnet, and the iron plate on screen cloth also can change magnetic patch into and increase magneticaction, makes fixing more firmly, does not repeat herein.
Below set forth the present embodiment course of work:
Tear net open:
First unclamp V-type bundling ring 8, remove pressing between screen frame 1 and vibrating body 7, take off V-type bundling ring 8.Then by spanner, rotate clamp nut 11, due to the large end both sides of clamp nut 11 be positioned cover 1.5 and 1.6 constraints of location snap ring and can not move left and right, thereby clamp nut 11 can only rotate and pull net hoop bar 9 recedings that stretch tight, the net hoop bar 9 that makes to stretch tight is lax, the net hoop bar 9 that stretches tight after lax is just repositioned in the shelves 1.4 on screen frame 1 under the suction of magnet 17, and adsorbed by magnet 17, after departing from rack 3, the net hoop bar 9 that stretches tight is combined into an integral body with screen frame 1 again.After screen frame 1 is taken off, damaged screen cloth 2 takes out from rack 3.
Draping:
As shown in Figure 3, new screen cloth 2 is layered on rack 3, then screen frame 1 is placed on screen cloth 2, adjust the position of screen frame 1, make wall energy in it cover rack 3.Then screen frame 1 is vertically fallen, 2 times foldings of screen cloth are being pressed in the bottom of screen frame 1, apply ointment or plaster after being bent on rack 3 outer walls.First screen cloth 2 bottoms are tightened: by spanner, rotate clamp nut 11, the left end of net hoop bar 9 of stretching tight is drawn to the right, right-hand end is to Zola, thereby the net hoop bar 9 that will stretch tight tightens up, annular stretches tight and nets hoop bar 9 disengaging magnets 17 and enter into tightening in groove 3.1 on rack 3 inwalls from the shelves 1.4 of screen frame 1.Be rotated further clamp nut 11, the net hoop bar 9 that stretches tight further tightens up, and screen cloth 2 is tightened on rack 3 outer walls.Behind one end of the tight complete net hoop bar 9 that stretches tight, the tighter other end, repeat no more.After screen cloth 2 is tightened on rack 3, then screen cloth 2 upper surfaces are tightened, the mode of tightening, as front, repeats no more.
As equivalent, the one end that also net that stretches tight can be bound round to bar 9 directly be fixed on screen frame 1, the other end connects tightening device.Only need to tighten up in such cases one end of the net hoop bar 9 that stretches tight.
Vibratory sieve must be guaranteed to leak material in use, is also that material can not drop in the cavity between screen frame 1 and rack 3.For this reason, along stationary annular sealing ring 1.1 on screen frame 1 upper end inwall, the bottom surface fixing seal pad 10 of sealing ring 1.1, sealing gasket 10 is pressed on screen cloth 2 upper surfaces.
Use after a period of time, if screen cloth 2 upper surfaces are lax uneven, only need further to tighten up again the net hoop bar 9 that stretches tight on upper strata.In the space outerpace of screen frame 1, rotate clamp nut 11, repeat no more.Do not need to shut down and can complete.
In the present embodiment, adopt the mode of rotating clamp nut 11 to realize tightening up with lax the net hoop bar 9 that stretches tight.
Embodiment bis-:
Compare with embodiment mono-, in the present embodiment, the end of the net hoop bar 9 that stretches tight is still to pass the rear intersection of screen frame 1.From to implement one different: adopt the stretch tight mode of net hoop bar 9 of vertical pulling to tighten up in the present embodiment.As shown in Figure 6, at the end fixing and locking button 13 of net hoop bar 9 that stretches tight, fixing snap fit 12 on screen frame 1 outer wall.Pull with hand tight locking button 13 one end of the net hoop bar 9 that stretches tight is drawn forward, after tension, hang on snap fit 12, then pull the stay of tight locking button 13, can the net hoop bar 9 that stretch tight be tightened up fixing.
The present embodiment does not need instrument to tighten, and only need to pull, and advantage is more quick.
Above-described embodiment one, two, the end of the net hoop bar 9 that stretches tight all passes the rear intersection of screen frame 1, has realized tightening screen cloth 2 in the space outerpace of screen frame 1.
Embodiment tri-
Different from embodiment mono-, two, in the present embodiment, the net hoop bar 9 that stretches tight need to not pass from screen frame 1.As shown in Figure 7, the net hoop bar 9 that stretches tight of same layer is two semicircles, two corresponding loopings that arrange of net hoop bar 9 that stretch tight, and wherein the end of the net hoop bar 9 that stretches tight and another root stretch tight, and to bind round the corresponding end of bar 9 relative close for net.In the relative connector 16 of the end fixed coupling unit 16, two of the net hoop bar 9 that stretches tight, penetrate fastening bolt 14, on fastening bolt 14, overlap loading nut 15.
In the stretch tight position of net hoop bar 9 ends of screen frame 1 correspondence, offer handle hole 1.3, from putting in spanner in handle hole 1.3, turn 15, two, the nut net hoop bar 9 that stretches tight and relatively tighten up, screen cloth 2 can be tightened, repeat no more.The so-called screen frame 1 correspondence implication that the position of net hoop bar 9 ends offers handle hole 1.3 that stretches tight refers to: on screen frame 1, offer position and the size of handle hole 1.3, should be able to meet the needs that the instrument of putting in removes to turn nut 15.
It is that fastening force is more even that same layer adopts two relative benefits of net hoop bar 9 annular that stretch tight, the better effects if of tightening to screen cloth 2.
Certainly, also can in same layer, only adopt the net hoop bar 9 that stretches tight, the two ends of the net hoop bar 9 that stretches tight are relative.In the present invention, the net hoop bar 9 that stretches tight can adopt iron wire or other to have certain flexible inflexibility body.
In the present embodiment, the non-intersection in end of net hoop bar 9 that stretches tight, but be " to face formula " structure, the end of the net hoop bar 9 that stretches tight does not pass screen frame 1.Certainly, in practical application, the end of the net hoop bar 9 that also can make to stretch tight is placed in outside screen frame 1, more convenient to operate from space outerpace.
Comprehensively above-described embodiment can be found out, core of the present invention is that the net hoop bar 9 that stretches tight is placed on screen frame 1 inwall, makes itself and screen frame 1 form assembly, can be directly by screen cloth 2 bendings by screen frame 1.When the fastening net that stretches tight binds round bar 9, the net hoop bar 9 that stretches tight can enter into tightening in groove 3.1 on rack 3 from screen frame 1 shelves 1.4, and needs lax stretching tight while netting hoop bar 9, and it be able to be repositioned in the shelves 1.4 of screen frame 1 again.
The above, be only preferred embodiment of the present invention, is not the present invention to be done to the restriction of other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solution of the present invention content that do not depart from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (6)
1. a method of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, rack is positioned at screen frame, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; In the stretch tight position of net hoop bar of screen frame correspondence, offer through hole, the end of the net hoop bar that stretches tight passes in this through hole; While changing screen cloth, first screen cloth is lain on rack, then screen frame is placed on screen cloth and is fallen, screen frame will apply ointment or plaster on rack outer wall screen cloth after folding under screen cloth; The stretch tight end of net hoop bar connects tightening device, by the operation tightening device net hoop bar that will stretch tight, tightens up, and net hoop bar disengaging magnet screen cloth is tightened in tightening groove stretches tight; Fixed support body on rack, screen cloth connects by magnetic part with supporter upper end.
2. a method of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and stretch tight net hoop bar, rack is positioned at screen frame, it is characterized in that on screen frame inwall fixedly shelves, one week upper fixed magnets of screen frame inwall along shelves top, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; In the stretch tight position of net hoop bar of screen frame correspondence, offer handle hole; While changing screen cloth, first screen cloth is lain on rack, then screen frame is placed on screen cloth and is fallen, screen frame will apply ointment or plaster on rack outer wall screen cloth after folding under screen cloth; The stretch tight end of net hoop bar connects tightening device, and instrument is put in and in handle hole, operates the tightening device net hoop bar that will stretch tight and tighten up, and net hoop bar disengaging magnet screen cloth is tightened in tightening groove stretches tight; Fixed support body on rack, screen cloth connects by magnetic part with supporter upper end.
3. a vibratory sieve of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and the net hoop bar that stretches tight, it is characterized in that on screen frame inwall fixedly shelves, along the screen frame inwall of shelves top, within one week, go up fixed magnets, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; Through hole is offered in the stretch tight position of net hoop bar end of screen frame correspondence, and the end of the net hoop bar that stretches tight passes in this through hole, and the end of the net hoop bar that stretches tight is connected on tightening device; Stretch tight and depart from magnet and screen cloth is tightened in tightening groove when net hoop bar tightens up; Vertical fixed support body on rack, iron plate is placed at screen cloth upper face center place, supporter top secured core, iron core is wound around solenoid outward, and solenoid energising produces magnetic attraction iron plate screen cloth is clamped.
4. the described vibratory sieve of effectively tightening screen cloth according to claim 3, it is characterized in that the stretching tight two ends of net hoop bar intersect, in the afterbody machining screw of net hoop bar that stretches tight, clamp nut, positioning sleeve and location snap ring are set in tightening device, one end of positioning sleeve is that coaming plate, the other end with holes connects location snap ring, positioning sleeve is fixed on screen frame, clamp nut is sleeved on the thread segment of the net hoop bar that stretches tight, clamp nut adopts staircase structural model, the large end of clamp nut between positioning sleeve coaming plate and location snap ring, small end passes location snap ring.
5. a vibratory sieve of effectively tightening screen cloth, comprise screen frame, rack, screen cloth and the net hoop bar that stretches tight, it is characterized in that on screen frame inwall fixedly shelves, along the screen frame inwall of shelves top, within one week, go up fixed magnets, the net hoop bar that stretches tight is placed in shelves and by magnet absorption, on rack outer wall, offers and tightens groove; Stretch tight net hoop bar end relatively and be connected on tightening device, in the stretch tight position of net hoop bar end of screen frame correspondence, offer handle hole; Stretch tight and depart from magnet and screen cloth is tightened in tightening groove when net hoop bar tightens up; Vertical fixed support body on rack, iron plate is placed at screen cloth upper face center place, supporter top secured core, iron core is wound around solenoid outward, and solenoid energising produces magnetic attraction iron plate screen cloth is clamped.
6. the vibratory sieve of effectively tightening screen cloth according to claim 5, it is characterized in that stretching tight net hoop bar for forming two semicircles of annular, wherein the end of the net hoop bar that stretches tight and another root stretch tight, and to bind round the corresponding end of bar relative close for net, connector, fastening bolt are set in tightening device, connector is fixed on the end of the net hoop bar that stretches tight, and in two connectors, penetrates fastening bolt.
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| CN201310678317.6A CN103658031B (en) | 2013-12-14 | 2013-12-14 | A kind of method and vibratory sieve effectively tightening screen cloth |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104259098A (en) * | 2014-09-02 | 2015-01-07 | 江西稀有稀土金属钨业集团有限公司 | Screen cloth replacing method and replacing vehicle |
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| CN106733631A (en) * | 2016-12-02 | 2017-05-31 | 新乡市振英机械设备有限公司 | Adjustable screen supporting device |
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| CN200939433Y (en) * | 2006-08-14 | 2007-08-29 | 崔雷 | Clamping single-layer screen mesh tensioner |
| CN202778951U (en) * | 2012-08-30 | 2013-03-13 | 佛山市海天调味食品股份有限公司 | Vibrating screen structure of vibrating screen machine |
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| CN2034091U (en) * | 1988-06-28 | 1989-03-15 | 景德镇陶瓷学院 | Takeup device for round shaking screen mesh |
| US5915566A (en) * | 1993-07-20 | 1999-06-29 | Sweco Incorporated | Fine mesh screening |
| CN2226981Y (en) * | 1995-04-24 | 1996-05-15 | 高扬 | Quick stretching device with vibrating rubber on screen |
| CN200939433Y (en) * | 2006-08-14 | 2007-08-29 | 崔雷 | Clamping single-layer screen mesh tensioner |
| CN202778951U (en) * | 2012-08-30 | 2013-03-13 | 佛山市海天调味食品股份有限公司 | Vibrating screen structure of vibrating screen machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259098A (en) * | 2014-09-02 | 2015-01-07 | 江西稀有稀土金属钨业集团有限公司 | Screen cloth replacing method and replacing vehicle |
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| Publication number | Publication date |
|---|---|
| CN103658031B (en) | 2015-12-09 |
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