This application claims the U.S. Patent application No.13/838 submitted on March 15th, 2013, the priority of 968, this application is the U.S. Patent application No.12/763 submitted on April 19th, 2010, and the part continuation application of 046, the full content of this application is clearly incorporated into this by reference.
Accompanying drawing explanation
Fig. 1 is the discontinuous plan figure of the vibratory sieve according to the application's exemplary embodiment;
Figure 1A is the top isometric view of the sieve shown in Fig. 1;
Figure 1B is the bottom isometric view of the sieve shown in Fig. 1;
Fig. 2 is substantially along the discontinuous sectional view that the line 2-2 of Fig. 1 intercepts;
Fig. 3 is substantially along the discontinuous sectional view that the line 3-3 of Fig. 1 intercepts;
Fig. 3 A is the discontinuous sectional view of amplification of a part for the sieve shown in Fig. 3;
Fig. 4 is the partial plan of the sieve shown in Fig. 1;
Fig. 4 A is the part amplification view of the sieve shown in Fig. 4;
Fig. 5 is substantially along the discontinuous sectional view that the line 5-5 of Fig. 1 intercepts;
Fig. 5 A is the discontinuous sectional view of amplification of the part of sieving shown in Fig. 5;
Fig. 6 is the amplification discontinuous sectional view similar with the basic view intercepted along the line 5-5 of Fig. 5, but the sectional view of the improvement shape of first component with stiffener is only shown;
Fig. 7 and Fig. 6 is similar, but first component without stiffener is shown;
Fig. 8 is discontinuous sectional view, illustrates that the method be installed in vibrating screener is sieved in the improvement of Fig. 1;
Fig. 9 is the amplification isometric view of the part of vibratory sieve according to the application's exemplary embodiment, and this vibratory sieve has and forms the stiffener of the first and second components one of mesh;
Figure 10 A is the top isometric view of the vibratory sieve according to the application's exemplary embodiment;
Figure 10 B is the bottom isometric view of vibratory sieve shown in Figure 10 A;
Figure 11 A is the top isometric view of the vibratory sieve according to the application's exemplary embodiment;
Figure 11 B is the bottom isometric view of vibratory sieve shown in Figure 11 A;
Figure 12 is the top isometric view of vibratory sieve, and a part for sieve is removed, to show the bracing piece according to the application's exemplary embodiment;
Figure 12 A is that the equal proportion of the part of vibratory sieve shown in Figure 12 amplifies top isometric view;
Figure 13 is the isometric view of the part of vibrating screener, its have mounted thereto, according to the vibratory sieve of the application's exemplary embodiment; And
Figure 14 is the isometric view of the part of vibrating screener, its have mounted thereto, according to the vibratory sieve of the application's exemplary embodiment.
Detailed description of the invention
In multiple figure, similar Reference numeral represents similar component.
According to the exemplary embodiment of the application, vibratory sieve 10 comprises the main body 12 formed by molded polyurethane, and it has atresia lateral edge portions 14,16.It is U-shaped that lateral edges 14,16 all has upwards, and include and be cast into structural elements, such as, bight 15 shown in Fig. 2.Lateral edge portions 14,16 also can be formed as not having and is cast into structural elements and/or can comprises other structural elements.Lateral edge portions 14,16 can be formed as U-shaped or arbitrarily other for be attached to vibrating screener be applicable to shape.In the exemplary embodiment, lateral edge portions 14,16 can comprise formed parts, such as, curve the hardware of intended shape, such as U-shaped.Formed parts by heating, pressurization, machinery, chemistry, molded and/or arbitrarily other suitable method, devices be attached on PU body.Refer back to accompanying drawing, as shown in Figure 11 A to 11B, it is U-shaped that bight 15 can be formed upwards.The whole length of the extensible lateral edge portions in bight 15 14,16.Lateral edge portions 14,16 can be configured to be suitable in vibrating screener, install vibratory sieve 10, as is well known.Main body 12 also comprises lower limb part 18 and upper rim 20, and they and lateral edge portions 14,16 together define the outer boundary of vibratory sieve 10.In certain embodiments, bight 15 can be included in upper rim 20 and lower limb part 18, as Figure 10 A to 10B finding.In such embodiments, the whole length of the extensible upper rim in bight 15 20 and lower limb part 18.In the exemplary embodiment, upper rim 20 and lower limb part 18 can be configured to be suitable for being installed on vibratory sieve 1010, and it is designed to install sieve from front to back, such as, see Figure 13.Main body 12 comprises upper surface 22 and lower surface 24 further and comprises the first component 101 and second component 102 that form mesh 26.Main body 12 can comprise the 3rd component 203, the 4th component 204, the 5th component 305 and the 6th component 306 further.Main body 12 can comprise the 3rd component 203 of various structures, the 4th component 204, the 5th component 305 and/or the 6th component 306.3rd component 203, the 4th component 204, the 5th component 305 and/or the 6th component 306 can comprise or not comprise stiffener 50, and the mesh 26 be usually constructed to being formed by the first and second components 101,102 provides support.Main body 12 can comprise the first component 101 and second component 102, and does not comprise the 3rd component 203, the 4th component 204, the 5th component 305 and/or the 6th component 306.First and/or second component 101,102 can be configured to comprise stiffener 50.In certain embodiments, bracing piece 1050 can integrate with the component that the marginal portion (such as, having the edge of U-shaped structural elements discussed here) that is parallel to the vibratory sieve with bobbing machine attachment arrangement extends.Such as see Figure 12 to 12A.Bracing piece 1050 by preventing lateral edge portions, such as Figure 10 A, 10B, 11A, 11B, 12 and 12A as shown in lateral edges 14,16 to be out of shape and/or hour-glass in shape, and provide stability for vibratory sieve 10.Because they are substantially firm, bracing piece is not vertical with the marginal portion of the vibratory sieve with bobbing machine attachment arrangement and extend, to provide support structure, and usually in the remarkable motion from power limit vibrating screen assembly to the marginal portion connecting vibrating screener tensioning member or the distortion that apply.In the exemplary embodiment, bracing piece 1050 can be integrally formed (comprising Unitarily molded) with the 4th component 204 and/or the 6th component 306.Bracing piece 1050 can be made up of the suitable material of plastics, metal, polymer or other tools structural property in need arbitrarily.
First and second components 101,102 form the first Unitarily molded lattice structure 100, and it limits mesh 26.Third and fourth component 203,204 can form the second Unitarily molded lattice structure 200.Bracing piece 1050 can be integrally molded in the 4th component 204.5th and the 6th component can form the 3rd Unitarily molded lattice structure 300.Bracing piece 1050 can be integrally molded in the 6th component 306.In exemplary embodiment as shown in Fig. 1,2,3,4 and 5, lattice structure 200 and 300 comprises two-way Unitarily molded stiffener, and it forms support grid in component.Because the character of stiffener 50, here discuss further, and the structure of their two-way lattice structure, the component that stiffener 50 is imbedded wherein will have relatively little size, and provides the opening sieve hole area of increase.Lattice structure provides screen strength, supports in oscillating load process to mesh 26, and significantly increases opening sieve hole area.Although be discussed herein second and the 3rd lattice structure, can provide less or other lattice structure.
First component 101 can be substantially parallel to each other and laterally extending between lateral edge portions 14,16.Second component 102 can be substantially parallel to each other and laterally extending between lower limb part 18 and upper rim 20.The thickness of second component 102 can be greater than the first component, to provide extra support structure to mesh 26.
First component 101 and/or second component 102 can comprise stiffener 50 and can by extra supporting member or support grid support structure or can't help its support.Such as see Fig. 6 and 9.As shown in Figure 9, main body 12 comprises the first and second components 101,102 had with its Unitarily molded two-way stiffener 50.Such structure can be beneficial to and require that sifter device has and use compared with the screen cloth of large-mesh.
In certain embodiments, bracing piece 1050 can be incorporated at least one in the 4th and the 6th component 204 and 306 respectively, and extends to 16 from edge 14.Such as see Figure 12 and 12A.Bracing piece 1050 provides stability and prevents screen cloth hour-glass in shape or other distortion along the edge of the screen cloth without U-type groove, such as edge 14 and 16.Stiffener 50 can be integrated with in the first, second, third, fourth, the 5th and/or the 6th component 101,102,203,204,305,306 by these embodiments.Stiffener 50 can be incorporated in all or part of of the first, second, third, fourth, the 5th and/or the 6th component 101,102,203,204,305,306.Stiffener 50 can provide the character of sieve discussed herein.
As shown in Figure 4, mesh 26 is microscler, and its length dimension along side and between its end is greater than the width dimensions between side, and their length dimension extends on the direction transverse to lateral edge portions 14,16.The width (namely between the inner surface of the first adjacent component 101) of mesh 26 can be about 0.044mm to about 4mm, and length (namely between the inner surface of adjacent second component 102) is that about 0.088mm is to about 60mm.Mesh 26 can have different shapes, comprises general square shape.The overall dimensions of sieve 10 takes advantage of 1.6 meters for about 1.2 meters, or other sizes wanted arbitrarily.Here all sizes proposed as an example, are not used in restriction.
Mesh 26 can be dispersed downwards between upper surface 22 and lower surface 24, and the first component 101 can be inverted trapezoidal substantially.Such as see Fig. 6 and 7.This general shape of first component 101 prevents the blocking in sieve 10.As shown in Figure 6, the first component 101 comprises stiffener 50.As shown in Figure 7, the first component 101 does not comprise stiffener 50.
Have and described hereinly there is different mesh size have relative large opening sieve hole area with the sifter device of supporting construction.Opening sieve hole area scope can be, and such as about 40% to about between 46%.As described further herein, relatively large opening sieve hole area obtains by the two-way stiffener 50 of layout in crossing members (such as component 203,204), described in multiple embodiments here.Stiffener significantly reduces the size of two Bidirectional supporting crossing members and the thinner sieve element 101,102 of permission formation mesh 26.The grid of supporting member and stiffener provides screen cloth rational in infrastructure, and it maintains the mesh of needs in vibration operating process.
The thickness of the third and fourth component 203,204 can be greater than the first and second components 101,102, and can have the part 210 under the lower surface 24 extending downwardly into main body 12.Larger thickness and can be the first and second components 101,102 to the part of downward-extension extra support structure is provided.As shown in fig. 1b, the cross section of part 210 can be triangle substantially, and its summit is given prominence to away from the lower surface 24 of main body 12.3rd component 203 can be substantially parallel and laterally extending between lateral edge portions 14,16, and have multiple first component 101 betwixt.4th component 204 can be substantially parallel and laterally extending between lower limb part 18 and upper rim 20, and have multiple second component 102 betwixt.4th component 204 can have Unitarily molded bracing piece 1050 within it.Stiffener 50 can with the third and fourth component 203,204 Unitarily molded.Such as see Fig. 3 A, 5A.Third and fourth component 203,204 can be configured by and comprises stiffener 50 and have minimum thickness, provides the support structure of necessity to maintain the mesh 26 formed by the first and second components 101,102 in vibratory sieve use procedure simultaneously.The Bidirectional supporting system provided by the third and fourth component 203,204 strengthened significantly reduces the thickness of stiffener, and provides opening sieve hole area and the overall screen efficiency of increase.The stability that bracing piece 1050 being incorporated in the 4th component 204 can increase sieve 10 also prevents hour-glass in shape, and namely lateral edges 14,16 makes sieve be the shape of roughly hourglass type to internal strain.
5th component 305 and the 6th component 306 can be included in main body 12.The thickness of the 5th and the 6th component can be greater than the third and fourth component, and has to the part 310 of downward-extension away from body lower surface.Larger thickness and can be the first and second components 101,102 to the part of downward-extension extra support structure is provided.6th component 306 can comprise the part 320 upwards extended away from the upper surface of main body.The cross section of part 320 can be triangle substantially, and its summit is given prominence to away from the upper surface 22 of main body 12.6th component 306 is shown in Figure 2, and its part 320 upwards extends and away from the upper surface of main body 12, and as flow guide.6th component 306 can have Unitarily molded bracing piece 1050 within it.5th component 305 can be substantially parallel and laterally extending between lateral edge portions 14,16, and have multiple 3rd component 203 betwixt.6th component 306 can be substantially parallel, and laterally extending between lower limb part 18 and upper rim 20, and have multiple 4th component 204 betwixt.Stiffener 50 can with the 5th and the 6th component 305,306 Unitarily molded.5th and the 6th component 305,306 can be the support that mesh 26 provides extra, and is configured by and comprises stiffener 50 and have minimum thickness, provides necessary support structure to maintain mesh 26 in vibratory sieve use procedure simultaneously.The Bidirectional supporting system provided by the strengthen the 5th and the 6th component 305,306 greatly can reduce the thickness of supporting member, and provides opening sieve hole area and the overall screen efficiency of increase.The be incorporated as sieve 10 of bracing piece 1050 in the 6th component 306 provides stability and prevents hour-glass in shape.
Figure 1A illustrates an exemplary embodiment of the application, and it has the component 203,204 of the first and second components 101,102 forming mesh 26 and the support grid structure forming hole 26.As shown in Figure 1A, sieve 10 and do not comprise the 5th and the 6th component 305,306.Figure 12 and 12A illustrates another exemplary embodiment of the application, and it has Unitarily molded bracing piece 1050 within it.As shown in Figure 12 and 12A, bracing piece 1050 is integrally molded in the 4th component 204.In other components that bracing piece 1050 also can be integrally molded in the 6th component 306 or to extend in parallel with component 204 and 306.
In use, vibratory sieve 10 is arranged on (Fig. 8) on vibrating screener 30 in a manner known in the art.More specifically, it is arranged on screen frame (unit) plate (screendeckbed) 31, and this screen frame (unit) plate is arranged on the framework (not shown) of machine.Screen frame (unit) plate 31 comprises isolated substantially parallel framing component 32, and it is fixed to one another by isolated substantially parallel cross frame member (not shown).Laterally extending between cross frame member is multiple substantially parallel stringers 33, and it installs channel rubber 34.Being arranged on, parallel frame frame member 32 is tie rods 35 of channel-shaped, and it has the bottom 36 be housed in lateral edge portions 14,16.Draw bolt 37 is traction item 35 at interval, thus uses the power needed to carry out tensioning vibratory sieve 10.The type of aforesaid screen frame (unit) plate is well known in the art.Sieve 10 can be arranged on other vibrating screeners, and lateral edges 14,16 can be configured to other shapes to adapt to different vibrating screeners.
Embodiment shown in Figure 13 is arranged on vibrating screener 1010 from front to back.In this embodiment, bight 15 is included in top edge 20 and lower limb 18, and is in below upper surface 22.This embodiment to have below screen cloth but not the tensile force that applies of top, and this tensile force applies from front to back.
Figure 14 illustrates the embodiment with the bight 15 be included in lateral edges 18,20.This embodiment also has the tensile force applied above screen cloth, and is from side to side.
Stiffener 50 described herein can be aromatic polyamide fibre (or its independent filament), natural fiber or has relatively large tensioning intensity and the other materials of relatively little cross-sectional area.When aromatic polyamide fibre is used as reinforcing fibre 50, it can buy under the trade mark KEVLAR of DuPont company, and is defined as KEVLAR29 further.Stiffener 50 also can be at least one in the aromatic polyamide fibre can bought under trade mark TWARON, SULFRON, TEIJINCONEX and TECHNORA of Teijin company.In addition, aromatic polyamide fibre can be wound around or weaving by multiple wire system, and they are done in order to absorb the polyurethane be molded in around them with the character of wick like this, thus provide fabulous bonding with it.The multiple wire system fiber be wound around or weave can be about 55 Denier to about 2840 Denier, preferably about 1500 Denier.The elasticity of aromatic polyamide fibre is that molded polyurethane provides elastic reinforcement system, and it can get back to its original molded shape after bending needed for occurring in operation and installation to vibration frame component 32 internal procedure and flexible.In addition, elasticity aromatic polyamide fibre allows elastic polyurethane net bending and can not hurt arc condition and and allow tensioning, as shown in Fig. 8,13 and 14.Before polyurethane molding is around stiffener 50, stiffener tensioning can be made.The various structures of stiffener 50 can be arranged in any one of the first, second, third, fourth, the 5th and the 6th component 101,102,203,204,305,306.Each component comprises zero, one or more stiffener 50, and stiffener 50 can be of different sizes and material.Reinforcement material 50 can be arranged in the latter half of component, thus relatively early can not expose due to the upper surface wearing and tearing of screen cloth.
In operation, the first component 101 can vibrate to strengthen screening effect.In this, it should be noted that because the first component 101 is flexible, and relatively thin, they will provide the relatively high expectation amplitude of needs.The relatively thin reason that first component 101 can make, produces mesh described herein, is because the support frame of Bidirectional supporting component has relative large tensile strength and relatively little cross-sectional area with stiffener (as described herein).Supporting member and the first component 101 make to obtain the relative aperture area carefully making screen cloth have larger percentage, this so that strengthen its production capacity.
According to the exemplary embodiment of the application, vibratory sieve 10 comprises elasticity and is molded PU body 12, it has substantially parallel lateral edge portions 14 at the opposite end of main body 12, 16, basic and lateral edge portions 14, 16 vertical lower limb parts 18, basic and lateral edge portions 14, 16 vertical and relative with lower limb part 18 upper rims 20, upper surface 22, lower surface 24, form the first and second components 101 of mesh 26, 102, first component 101 is in lateral edge portions 14, extend between 16, and second component 102 extends between lower limb part 18 and upper rim 20.Main body also can comprise the third and fourth component 203,204.The thickness of the third and fourth component 203 and 204 can be greater than the first and second components 101,102.3rd component 203 is substantially parallel and laterally extending between lateral edges 14,16, and has multiple first component 101 betwixt.4th component 204 is substantially parallel and laterally extending between lower limb part 18 and upper rim 20, and has multiple second component 102 betwixt.Stiffener 50 can with the 3rd and/or the 4th component 203,204 Unitarily molded.Bracing piece 1050 can be Unitarily molded with the 4th component 204.Main body also comprises the 5th and the 6th component 305,306.5th component 305 is substantially parallel and laterally extending between lateral edge portions 14,16.6th component 306 is substantially parallel and laterally extending between lower limb part 18 and upper rim 20.The thickness of the 5th and the 6th component is greater than the third and fourth component, and comprises therewith Unitarily molded stiffener 50.Bracing piece 1050 can be Unitarily molded with the 6th component 306.Can have according to the vibratory sieve of this structure and be greater than the opening sieve hole area of 40% and the mesh size between about 0.375 order to about 400 orders.As an example, the screen cloth with structure above-mentioned detects has 43 order size sieves, 140 order size sieves and 210 order sizes sieve.Each of these screen clothes has the opening sieve hole area of about 40% to about 46%.The screening area large like this of mesh size thin like this by by the 3rd, the 4th, the 5th with the 6th component 203,204,305 and 306 and the relative firm and thin grid frame that produces with its integrally moulded stiffener and obtain.In exemplary embodiment above-mentioned and example, are about 1 " taking advantage of 1 " by the size of each grid cell intersected to form of the third and fourth component 203 and 204.Usually, for having the screen cloth of more large-mesh, grid cell is larger, and for having the screen cloth of less mesh, grid cell is less.This principle is generally applicable to each embodiment described herein.Grid cell also can have rectangular shape or other are suitable for supporting the shape of mesh arbitrarily.
According to the application's exemplary embodiment, the method manufacturing vibratory sieve comprises: mfg. moulding die, and it is configured for making vibratory sieve, the flexible molded polyurethane main body of this braking sifter device, be arranged on by stiffener in mould, stiffener is configured to main body integrally moulded, be arranged on by bracing piece in mould, this bracing piece is configured to main body integrally moulded, uses filling polyurethane mould, and formation vibratory sieve, it has the substantially parallel lateral edge portions at main body opposite end place, be basically perpendicular to the lower limb part of lateral edge portions, be basically perpendicular to lateral edge portions and divide relative upper rim with lower edge portion, upper surface, lower surface, form the first and second components of mesh, first component extends between lateral edge portions, and second component extends between lower limb part and upper rim, third and fourth component, the bracing piece integrally moulded with the 4th component, 3rd component is substantially parallel and laterally extending and have multiple first component betwixt between lateral edge portions, 4th component is substantially parallel and laterally extending between lower limb part and upper rim, and there is multiple second component betwixt, with at least one the integrally moulded stiffener in the first and second components.
Although described the preferred embodiment of the application, should recognize and be not limited to these embodiments, but the interior enforcement of the scope of claim below.