Screen mesh of vibrating screen

Abstract

The invention relates to the technical field of screen meshes, and provides a vibrating screen mesh which comprises a framework, a plastic frame and a silk screen, the framework is coated with the plastic frame, the plastic frame comprises a plurality of supporting bodies which are connected with one another, the supporting bodies can form boss structures, and the plastic frame is coated with the silk screen which is in a wave shape so that the boss structures of the supporting bodies can be supported below the silk screen. According to the vibrating screen mesh provided by the invention, the wave crests and the wave troughs of the wave-shaped silk screen are uniformly supported through the supporting bodies, the dialysis area is increased, and the technical problems that in the prior art, the bonding strength of the silk screen and plastic of the vibrating screen mesh is low, the silk screen is prone to falling off from a plastic frame, and the dialysis area is small are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screen mesh, in particular, to a vibrating screen mesh. BACKGROUND

[0002] In the operation process of the vibrating screen separation equipment, the screen mesh as the core filtering component, its structural stability and service life directly affect the screening efficiency and use cost of the equipment.

[0003] The non-planar screen mesh (such as the wave-shaped screen mesh) is widely used in the solid-liquid separation or solid-solid classification scene in the fields of petroleum, mining, chemical industry and the like and the scene of drilling fluid treatment due to its larger effective screening area, better material flowability and better anti-blocking performance compared with the traditional planar screen mesh.

[0004] The existing non-planar screen mesh is usually composed of a framework, a plastic frame and a wire mesh, and in the production, the plastic is extruded to cover the outside of the framework to form the plastic frame, and then the wire mesh is hot-pressed to the plastic frame to manufacture the non-planar screen mesh.

[0005] However, the existing non-planar screen mesh usually adopts the plastic frame with a planar structure, and when the wave-shaped wire mesh is hot-pressed to the plastic frame, only the wave troughs will be bonded with the plastic frame, and due to the small bonding area, the bonding strength between the wire mesh and the plastic frame is low, and the wire mesh is easy to fall off from the plastic frame in the use process, thereby affecting the service life of the vibrating screen mesh.

[0006] Therefore, it is urgent to improve the existing vibrating screen mesh to solve the above problems. SUMMARY

[0007] In order to overcome the above defects, the embodiments of the present application provide a vibrating screen mesh, which solves the technical problems of low bonding strength between the wire mesh and the plastic frame in the vibrating screen mesh in the prior art and easy falling off of the wire mesh from the plastic frame.

[0008] According to one aspect, at least one embodiment of the present application provides a vibrating screen mesh, which comprises a framework, a plastic frame and a wire mesh, the plastic frame is covered outside the framework, the plastic frame comprises a plurality of connected support bodies, the support bodies can form a convex structure, the wire mesh is wave-shaped and covered outside the plastic frame, so that the convex structure of the support bodies can be supported below the wire mesh.

[0009] As a further technical solution, the wire mesh has a wave crest, the support body has a connected protrusion and a plurality of ridge strips, the plurality of ridge strips are distributed around the protrusion, the protrusion is used for connecting and supporting the wave crest, and the ridge strips are used for connecting and supporting two inner side walls of the wave crest.

[0010] As a further technical solution, the ridge strip has an inclined surface which is fitted with the inner side wall of the wave crest.

[0011] As a further technical scheme, adjacent two of the support bodies form a blanking hole for material passing, the wire mesh has a screening area in communication with the blanking hole, and a plurality of the screening areas are correspondingly located at the wave peaks and wave troughs.

[0012] As a further technical scheme, the horizontal projection of the blanking hole and the screening area is a rhombic hole.

[0013] As a further technical scheme, the framework has a base and a mesh connected thereto, the mesh has a through hole in communication with the blanking hole, and the mesh further has a plurality of through holes distributed at the outer periphery of the framework, and a plurality of protrusions are connected to the inner walls of the through holes and arranged in the circumferential direction.

[0014] As a further technical scheme, the plastic frame is further provided with a mounting seat at the edge thereof, the plastic frame is provided with an opening on one side of the mounting seat, the mounting seat is located on one side of the wire mesh, the opening is located below the wire mesh, a press plate capable of lifting and moving is provided through the mounting seat, the outer end of the press plate has a stepped circular table part, and the circular table part is configured to press the wire mesh and press the end of the wire mesh into the opening after the press plate is lowered.

[0015] As a further technical scheme, the mounting seat is provided with a stand connected to the press plate, a sleeve is sleeved on the stand, the side wall of the sleeve has a helically extending arc-shaped through groove, the outer periphery of the stand has a radially extending limiting rod, the limiting rod penetrates through the arc-shaped through groove and is in sliding fit with the arc-shaped through groove, an elastic member one is connected between the stand and the plastic frame, the elastic member one is used to provide a force for the press plate to press the wire mesh, and the press plate is configured to swing transversely above the opening and press the wire mesh through the cooperation of the limiting rod and the arc-shaped through groove under the elastic force of the elastic member one.

[0016] As a further technical scheme, the plastic frame has a plurality of sliding grooves, the sliding grooves extend along the length direction of the plastic frame and are distributed at intervals along the width direction of the plastic frame, the sliding grooves are located below adjacent two of the support bodies, a plurality of the support bodies are connected to each other along the extension direction of the wave peaks to form a plurality of columns, each column is movably arranged in the sliding groove, and the distance between adjacent two of the support bodies is adjusted to adapt to the size of the wave peak or wave trough.

[0017] As a further technical solution, the chute is provided with a rack one and a rack two distributed upward and downward, the teeth of the rack one and the rack two are oppositely arranged, an installation plate is arranged between two adjacent support bodies, a lifting shaft extending downward is arranged on the installation plate, a gear is rotatably arranged on the lifting shaft, the gear is separately engaged with the rack one or synchronously engaged with the rack one and the rack two, a second elastic member is further connected between the installation plate and the lifting shaft, the second elastic member is used to provide a force for the lifting shaft to descend so that the gear is synchronously engaged with the rack one and the rack two, and the gear is configured to be synchronously engaged with the rack one and the rack two after following the lifting shaft to descend, so as to lock the position of the support body; the gear is engaged with the rack one after following the lifting shaft to ascend, so as to release the locking of the support body.

[0018] The beneficial effects of the present application are: In the present application, a planar plastic frame is not used, and a plurality of support bodies are additionally arranged on the plastic frame. The protrusions of the support bodies can effectively fit the peaks of the wire mesh, and the ridges can effectively fit the inclined surfaces between the peaks and the valleys. The protrusions of the support bodies and the ridges of the plastic frame can effectively support the raised parts of the wire mesh, increase the bonding area, greatly strengthen the connection strength of the wire mesh, more effectively resist frequent vibration, and prolong the service life of the entire screen mesh. In addition, the plurality of wire meshes are directly hot-pressed and fused to the plastic frame, and the bonding area formed is the fitting area of the wire mesh and the protrusions and ridges of the support bodies. Compared with the manual bonding of the plurality of wire meshes in the prior art, the bonding area of the wire mesh in the present application is more uniform and orderly. On the one hand, the overall bonding structure tends to be consistent, and the overall structural strength is improved. On the other hand, the uniform distribution of the bonding area makes the screening area also uniformly distributed. Compared with the disorderly distribution of the screening area in the prior art, the present application can screen at the most favorable position for screening, greatly improves the dialysis area, and further improves the screening efficiency. In addition, the bonding area specifically refers to the bonding area of the peaks and valleys of the wire mesh, which corresponds to the connection points of the protrusions and the adjacent ridges, respectively, forming uniform "point bonding". Compared with the manual bonding in the prior art, the connection strength is improved while the screening area occupied by the peaks and valleys is reduced, unnecessary area is reduced, the continuous material falling holes between the support bodies corresponding to the screening area are defined as the screening area, and the position most favorable for screening is defined as the screening area, further improving the screening efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present application. Those skilled in the art can obtain other drawings according to the contents of the example embodiments of the present application and these drawings without creating any inventive labor.

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a vibrating screen according to an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the explosion structure of the vibrating screen mesh in the embodiment; Figure 3 This is a structural diagram of a plastic frame in another embodiment of the present invention; Figure 4 for Figure 3 An enlarged structural diagram of a part A in the embodiment of FIG. Figure 5 This is a schematic structural diagram of a skeleton in another embodiment of the present invention; Figure 6 for Figure 5 An enlarged structural diagram of a part B in the embodiment; Figure 7 This is a structural schematic diagram of a pressing plate in another embodiment of the present invention; Figure 8 for Figure 7 A schematic structural diagram of the embodiment after the pressing plate is rotated; Figure 9 for Figure 7 A schematic structural diagram of a mounting base, a pressing plate and a sleeve in an embodiment of the present invention; Figure 10 This is a structural diagram of a support body and a plastic frame in another embodiment of the present invention; Figure 11 for Figure 10 A schematic diagram of the enlarged structure of a part C in the embodiment; Figure 12 for Figure 10 A schematic structural diagram of rack 1, rack 2 and gear in an embodiment of the present invention; In the figure: 1. Skeleton, 11. Base, 12. Mesh, 121. Through hole, 122. Through hole, 1221. Protrusion, 2. Plastic frame, 21. Support body, 211. Bump, 212. Ribbon, 2121. Inclined surface, 213. Mounting plate, 2131. Lifting shaft, 2132. Gear, 214. Elastic part 2, 22. Blanking hole, 3. Wire mesh, 31. Crest, 32. Screening area, 23. Mounting seat, 231. Pressing plate, 2311. Cone part, 2312. Limiting rod, 232. Sleeve, 2321. Arc-shaped through groove, 233. Elastic part 1, 24. Opening, 25. Slide groove, 251. Rack 1, 252. Rack 2. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0022] For the purpose of clarity, only the parts of the apparatus that are pertinent to the invention are shown in the drawings, and they do not necessarily represent the actual configuration of the product. In addition, in some of the drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled, in order to make the drawings simple and easy to understand. In this document, "one" means not only "only one", but also "more than one", and "several" includes "two" and "more than two".

[0023] In this document, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0024] In the present invention, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0025] In the description of the present embodiment, the orientation or position relationship of the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the existing wave-shaped screen, the plastic frame 2 is mostly planar, and the bonding points of the wire mesh 3 are concentrated in the wave trough position. On the one hand, the bonding area is small, and on the other hand, the long strip bonding at the wave trough occupies the screening space and greatly affects the material screening efficiency. Moreover, in the prior art, the wire mesh 3 is processed by first pre-bonding multiple layers of wire mesh 3, then forming a wave shape, and then bonding to the plastic frame 2. This will result in uneven distribution of the bonding area, disordered screening area 32, which is not conducive to effective screening of the material, and the structural strength after bonding is not reliable and is easy to fall off. The vibrating screen screen in the application does not use a planar plastic frame 2, and a plurality of support bodies 21 are added to the plastic frame 2. The protrusions 1221 of the support bodies 21 can effectively fit the peaks 31 of the wire mesh 3, and the battens 212 effectively fit the inclined surfaces between the peaks 31 and the wave troughs. The protrusions 1221 of the support bodies 21 and the battens 212 of the wire mesh 3 are directly hot-pressed and fused to the plastic frame 2 after forming a wave shape. Compared with the manual bonding in the prior art, the bonding area in the application is uniform and orderly, and there is no unnecessary increase in area, which improves the screening area of the material. In addition, the bonding areas of the peaks 31 and the wave troughs of the wire mesh 3 correspond to the connection points of the protrusions 1221 and the adjacent battens 212, respectively, forming uniform "point bonding". Compared with the prior art, the screening area of the peaks 31 and the wave troughs is reduced, and the continuous material falling holes 22 between the support bodies 21 are formed in the screening area 32, which is most conducive to screening. The position is defined as a screening area 32, which further improves the screening efficiency.

[0028] As shown in Figure 1 , Figure 2 , which respectively show the perspective view and the explosion view of the vibrating screen screen in an embodiment of the application. The vibrating screen screen comprises a skeleton 1, a plastic frame 2 and a wire mesh 3. The plastic frame 2 is arranged on the outside of the skeleton 1 in a cladding manner. The plastic frame 2 is integrated with a plurality of interconnected support bodies 21, and the support bodies 21 form a boss structure through their own structural form. The wire mesh 3 is in a wave shape as a whole, and the wire mesh 3 is arranged on the outside of the plastic frame 2 in a cladding manner. After assembly, the boss structure of the support body 21 is below the wire mesh 3, and the boss structure of the support body 21 supports the wire mesh 3.

[0029] The support body 21 is arranged on the plastic frame 2 and can form a boss structure, the boss structure of the support body 21 is adapted to the shape of the wave-shaped screen 3, and the contact support points of the screen 3 and the plastic frame 2 are increased. The plastic frame 2 covers the structure of the skeleton 1, the skeleton 1 provides basic support for the plastic frame 2, the structural stability of the plastic frame 2 is enhanced, and the plastic frame 2 is prevented from deforming in the vibration process; the boss structure formed by the support body 21 supports the wave-shaped screen 3 below, compared with the structure that the existing plane plastic frame 2 is only bonded with the trough of the screen 3, the contact area and the support point position of the screen 3 and the plastic frame 2 are greatly increased, the connection stability of the screen 3 and the plastic frame 2 is improved, and the problem that the screen 3 is easily separated from the plastic frame 2 in the prior art is solved; meanwhile, the structure of the wave-shaped screen 3 retains the characteristics that the effective screening area is large and the material fluidity is good, and the service life of the vibrating screen screen is prolonged as a whole in combination with the support of the plastic frame 2 and the skeleton 1.

[0030] As shown in Figure 3 , Figure 4 As shown in FIG. 1 and FIG. 2, the wave-shaped structure of the screen 3 forms a wave crest 31 and a wave trough; the support body 21 is provided with a boss 1221 and a plurality of ridge strips 212, the plurality of ridge strips 212 are respectively connected around the boss 1221, the boss 1221 is connected with the top of the wave crest 31 and supports the top of the wave crest 31, and the plurality of ridge strips 212 are respectively connected with the two inner side walls of the wave crest 31 and support the two inner side walls of the wave crest 31.

[0031] In view of the problem that the wave crest 31 part of the wave-shaped screen 3 lacks effective support, the boss 1221 and the ridge strip 212 are arranged on the support body 21 to support the top and the inner side wall of the wave crest 31 respectively, and the support structure is further optimized. During assembly, the boss 1221 of the support body 21 is aligned with the wave crest 31 of the screen 3, so that the boss 1221 is attached to the wave crest 31, and the position of the ridge strip 212 is adjusted, so that the ridge strip 212 is attached to the two inner side walls of the wave crest 31, and the wave crest 31 is fully supported. The inclined surface 2121 is arranged on the ridge strip 212, the inclination angle of the inclined surface 2121 is consistent with the inclination angle of the inner side wall of the wave crest 31, and the inclined surface 2121 is fully attached to the inner side wall of the wave crest 31 after assembly.

[0032] The support of the convex block 1221 to the top of the wave peak 31, combined with the support of the ridge 212 to the two inner side walls of the wave peak 31, makes the stress of the wave peak 31 more uniform compared to the structure that only supports the bottom of the wave peak 31, avoiding deformation of the wave peak 31 due to excessive local stress during vibration; at the same time, the setting of the convex block 1221 and the ridge 212 further increases the contact area between the screen 3 and the plastic frame 2, improving the bonding strength between the two, preventing the screen 3 from separating from the plastic frame 2 at the wave peak 31; in addition, the stability of the wave peak 31 structure ensures the stability of the effective screening area of the wave-shaped screen 3, ensuring that the screening efficiency is not affected by the deformation of the wave peak 31.

[0033] The complete fit of the inclined surface 2121 to the inner side wall of the wave peak 31 changes the contact between the ridge 212 and the inner side wall of the wave peak 31 from line or point contact to surface contact, further increasing the contact area and improving the bonding strength; at the same time, the fitted inclined surface 2121 can evenly transmit the vibration impact force received by the wave peak 31 to the ridge 212, avoiding local stress concentration that can damage the screen 3; in addition, the setting of the inclined surface 2121 simplifies the assembly process, ensuring that each assembly can achieve a tight fit and ensure the consistency of the support effect.

[0034] In one embodiment, the plurality of support bodies 21 are connected to each other, arranged in order, and connected to the outer periphery of the plastic frame, forming a whole. The plurality of support bodies 21 can be uniformly filled in the center of the plastic frame 2, or individual positions can be removed without complete filling. The support bodies 21 connected to each other form a structure similar to a mesh with holes, and the adjacent two support bodies 21 form a blanking hole 22, which is in the shape of a rhombus or a square or other shapes, for the passage of materials; the screen 3 is provided with a screening area 32, the screening area 32 is in communication with the blanking hole 22, and a plurality of screening areas 32 are respectively distributed at the wave peak 31 and wave valley positions of the screen 3. In order to solve the problem of unsmooth material flow path during screening, the blanking hole 22 is arranged between adjacent support bodies 21, and the screening area 32 in communication with the blanking hole 22 is arranged on the screen 3, forming a complete material screening flow path. During screening, the material vibrates on the wave-shaped screen 3, the material that meets the screening requirements passes through the screening area 32 located at the wave peak 31 and the wave valley, enters the blanking hole 22, and then is discharged through the blanking hole 22, completing the screening.

[0035] The communication between the blanking hole 22 and the screening area 32 ensures a smooth path for the material from screening, passing to discharging, avoiding the accumulation of materials between the screen 3 and the plastic frame 2; the distribution of the screening area 32 at the wave peak 31 and the wave valley, combined with the structure of the wave-shaped screen 3, maximizes the use of the surface area of the screen 3, increases the effective screening area, and improves the screening efficiency; at the same time, the structure of the blanking hole 22 formed by the adjacent support bodies 21 provides sufficient space for the material to pass through while ensuring the support strength of the support body 21 to the screen 3, balancing the structural stability and screening performance.

[0036] The bottom of the mesh 12 and the support body 21 corresponds to a preferably rhombic structure, and a square, triangular or other shape can also be used. The horizontal projection structure of the rhombic hole is more suitable for the movement trajectory of the material in the vibration process than the circular hole or the square hole, reduces the jamming and accumulation of the material at the sieve area 32 and the hole of the falling hole 22, and improves the passing rate of the material; at the same time, the edge angle of the rhombic hole is smooth, avoiding the stress concentration at the edge angle of the square hole, and enhancing the durability of the plastic frame 2 structure around the falling hole 22 and the wire mesh 3 structure around the sieve area 32; in addition, under the premise of ensuring the structural strength, the rhombic hole can provide a larger effective flow area under the same plastic frame 2 area and wire mesh 3 area, further improving the screening efficiency.

[0037] As shown in Figure 5 , Figure 6 , which respectively shows the skeleton 1 perspective view and the enlarged view of the through hole 122 in an embodiment of the application. The skeleton 1 includes a base 11 and a mesh 12, the base 11 is connected with the mesh 12 to form an overall skeleton 1 structure; the mesh 12 is provided with a through hole 121, the through hole 121 is communicated with the falling hole 22 on the plastic frame 2, ensuring that the material can pass through the falling hole 22 into the through hole 121; the mesh 12 is also provided with a plurality of through holes 122, the plurality of through holes 122 are distributed along the outer periphery of the mesh 12, and a plurality of protrusions 211 are connected on the inner wall of the through hole 122, the plurality of protrusions 211 are distributed along the circumferential direction of the through hole 122. One structure form of the skeleton 1 is that the base 11 selects a square tube surrounding a square, the mesh 12 selects a mesh corresponding to the shape of the bottom of the support body 21, such as a rhombic mesh, and then the plastic frame 2 is coated outside, the square tube is hollow inside for plastic to enter, improving the structural strength. Another structure form of the skeleton 2 is that the base 11 selects a lattice-shaped plate with built-in steel bars, the mesh 12 selects a mesh corresponding to the shape of the bottom of the support body 21, and then the plastic frame 2 is coated outside. Another structure form of the skeleton 2 is that the base 11 selects horizontal and vertical alternating steel bars, the steel bars are pre-bound with the mesh 12 selecting a mesh corresponding to the shape of the bottom of the support body 21, and then the plastic frame 2 is coated outside.

[0038] In view of the problems of the skeleton 1 support stability and assembly convenience, the base 11 enhances the overall support of the skeleton 1, the through hole 121 ensures the completeness of the material flow path, the through hole 122 increases the coating area of the plastic frame 2, and the protrusion 211 enhances the strength and stability of the connection.

[0039] As shown in Figures 7-9As shown, it respectively shows the structure of the pressing plate 231 in an embodiment of the present application. The edge part of the plastic frame 2 is provided with the mounting seat 23, the plastic frame 2 is provided with the opening 24, the opening 24 is located at one side of the mounting seat 23; the mounting seat 23 is located at one side of the silk screen 3, the opening 24 is located below the silk screen 3; the mounting seat 23 is provided with the pressing plate 231 penetrating through, the pressing plate 231 can move up and down along the mounting seat 23, the outer end of the pressing plate 231 is provided with the circular table part 2311, the circular table part 2311 is in a stepped shape; when the pressing plate 231 is lowered, the circular table part 2311 is lowered synchronously with the pressing plate 231, the circular table part 2311 presses the silk screen 3 in the lowering process, and the end part of the silk screen 3 is pressed into the opening 24. The mounting seat 23 is connected with the stand column, the stand column and the pressing plate 231 are connected to form a whole; the stand column is sleeved with the sleeve 232, the side wall of the sleeve 232 is provided with the arc-shaped through slot 2321, the arc-shaped through slot 2321 extends spirally along the side wall of the sleeve 232; the outer periphery of the stand column is provided with the limiting rod 2312, the limiting rod 2312 extends along the radial direction of the stand column, the limiting rod 2312 penetrates through the arc-shaped through slot 2321, and the limiting rod 2312 can slide in the arc-shaped through slot 2321; the stand column and the plastic frame 2 are connected with the elastic member one 233, the elastic member one 233 can provide an elastic force, the elastic force is used to drive the pressing plate 231 to press the silk screen 3; under the action of the elastic force of the elastic member one 233, the limiting rod 2312 slides along the arc-shaped through slot 2321, drives the stand column and the pressing plate 231 to swing laterally, so that the pressing plate 231 swings to above the opening 24, and then continues to be lowered under the action of the elastic force to press the silk screen 3.

[0040] In view of the problem that the silk screen 3 edge is not fixed firmly, the mechanical fixation of the end part of the silk screen 3 is realized through the cooperation of the mounting seat 23, the pressing plate 231, the circular table part 2311 and the opening 24, and the deficiency of the adhesive fixation is supplemented. In view of the problems of inaccurate positioning and unstable pressing force of the pressing plate 231, the stable elastic force is provided by the elastic member one 233, the automatic alignment and stable pressing of the pressing plate 231 are realized through the cooperation of the limiting rod 2312 and the spirally extending arc-shaped through slot 2321. The working process is as follows: in the initial state, the elastic member one 233 is in the force storage state, after the release, the elastic force of the elastic member one 233 pushes the stand column to move downward, the limiting rod 2312 on the outer periphery of the stand column slides in the arc-shaped through slot 2321 of the sleeve 232, since the arc-shaped through slot 2321 extends spirally, the limiting rod 2312 drives the stand column to swing laterally in the sliding process, so that the pressing plate 231 swings accurately to above the opening 24, and the pressing plate 231 is lowered and the circular table part 2311 presses the end part of the silk screen 3 to enter the opening 24 if the movement continues.

[0041] The matching structure of the mounting seat 23, the pressing plate 231, the circular table part 2311 and the opening 24 provides mechanical fixation for the end of the wire mesh 3, greatly improves the connection strength of the edge of the wire mesh 3 and the plastic frame 2 compared with the fixation mode relying on bonding only, and prevents the edge of the wire mesh 3 from falling off in the vibration process; the stepped circular table part 2311 can press the end of the wire mesh 3 into the opening 24 in the pressing process, and further strengthens the fixation. The elastic member one 233 can provide continuous and stable elastic force, ensures that the pressing force of the pressing plate 231 on the wire mesh 3 is stable for a long time, and avoids loosening of the wire mesh 3 caused by insufficient pressing force after long-term use; the cooperation of the limiting rod 2312 and the helically extending arc-shaped through groove 2321 converts the linear motion of the column into the horizontal swinging and descending motion of the pressing plate 231, realizes automatic alignment of the opening 24 by the pressing plate 231, improves the positioning accuracy and assembly efficiency compared with manual adjustment; and the helically extending arc-shaped through groove 2321 is more conducive to avoiding the movement of the pressing plate 231 compared with the straight up and down mode, and ensures the stability of the pressing.

[0042] As shown in Figures 10-12 The support body 21 is no longer integrally connected, but is disconnected in columns, a plurality of sliding grooves 25 are arranged on the plastic frame 2, the plurality of sliding grooves 25 extend along the length direction of the plastic frame 2, and the plurality of sliding grooves 25 are spaced apart along the width direction of the plastic frame 2; the sliding groove 25 is below the adjacent two support bodies 21; a plurality of support body 21 columns are sequentially connected along the extension direction of the wave crest 31 of the wire mesh 3; each column of support bodies 21 is arranged in the corresponding sliding groove 25, and the column of support bodies 21 can move along the extension direction of the sliding groove 25; by moving the column of support bodies 21, the distance between the adjacent two columns of support bodies 21 can be adjusted to adapt to the wave crest 31 or the wave trough of different sizes of the wire mesh 3.

[0043] In view of the problem that the fixed distance between the support bodies 21 cannot adapt to wire meshes 3 of different wave sizes, the sliding groove 25 and the movable column of support bodies 21 are arranged to realize the adjustable distance between the support bodies 21. The working process is as follows: according to the size of the wave crest 31 or the wave trough of the wire mesh 3 to be assembled, the column of support bodies 21 is moved along the length direction of the sliding groove 25, the distance between the adjacent two columns of support bodies 21 is adjusted, the boss structure of the support body 21 can accurately support the lower part of the corresponding wave crest 31 or wave trough, and the position of the column of support bodies 21 in the sliding groove 25 is fixed after the adjustment is completed.

[0044] The matching structure of the sliding groove 25 and the support body 21 column realizes the adjustment of the distance between the two adjacent support body 21 columns, so that the same plastic frame 2 can adapt to the wire mesh 3 with different wave sizes, improves the versatility of the plastic frame 2, avoids replacing the entire plastic frame 2 due to the change of the wave size of the wire mesh 3, reduces the use cost, and ensures the stability of the support of the support body 21 to the wire mesh 3; the support body 21 is connected to form a column structure along the extension direction of the wave crest 31, which ensures the overall consistency of each column of support body 21 during movement, avoids the deviation of the support position caused by the movement of a single support body 21, and ensures the stability of the support of the support body 21 to the wire mesh 3; the sliding groove 25 is arranged below the adjacent support body 21, which does not affect the formation of the blanking hole 22 and the passage of the material, and takes into account the support distance adjustment function and the screening function; the overall structure improves the adaptability of the vibrating screen mesh to different specifications of the wire mesh 3, and expands the use range.

[0045] The sliding groove 25 is provided with a rack one 251 and a rack two 252, the rack one 251 and the rack two 252 are distributed above and below, and the teeth of the rack one 251 are arranged opposite to the teeth of the rack two 252; the two adjacent support body 21 are connected with a mounting plate 213, the mounting plate 213 is connected with a lifting shaft 2131, and the lifting shaft 2131 extends downward along the vertical direction; the lifting shaft 2131 is rotatably provided with a gear 2132, the gear 2132 can be engaged with the rack one 251 alone or with the rack one 251 and the rack two 252 synchronously; the mounting plate 213 and the lifting shaft 2131 are connected with an elastic member two 214, the elastic member two 214 can provide an elastic force, and the elastic force is used to drive the lifting shaft 2131 to descend, so that the gear 2132 is synchronously engaged with the rack one 251 and the rack two 252; when the gear 2132 descends with the lifting shaft 2131 and is synchronously engaged with the rack one 251 and the rack two 252, the gear 2132 is limited to rotate, so as to lock the position of the support body 21; when the gear 2132 rises with the lifting shaft 2131, the gear 2132 is only engaged with the rack one 251, and the gear 2132 can rotate freely, so as to release the locking of the support body 21.

[0046] In order to solve the problem that the positioning of the support body 21 column is unreliable after moving, the rack one 251, the rack two 252, the gear 2132 and the elastic member two 214 are matched to realize the reliable locking and convenient unlocking of the support body 21 column. The working process is as follows: when unlocking, the lifting shaft 2131 is pulled upward, the elastic member two 214 is stretched, the gear 2132 rises with the lifting shaft 2131, is separated from the rack two 252, and is only engaged with the rack one 251, at this time the support body 21 column is pushed, the gear 2132 rolls along the rack one 251, and the movement of the support body 21 column is realized; after the adjustment is completed, the lifting shaft 2131 is released, the elastic member two 214 restores the deformation, pulls the lifting shaft 2131 to descend, the gear 2132 descends at the same time, is engaged with the rack one 251 and the rack two 252, the gear 2132 is limited to rotate by the two side racks, and the position of the support body 21 column is locked.

[0047] The matching structure of the rack one 251, the rack two 252 and the gear 2132 realizes quick locking and unlocking of the column position of the support body 21, compared with the traditional bolt fixing mode, without the need to disassemble the bolt to complete the adjustment, saving the adjustment time and improving the adjustment efficiency; the elastic member two 214 provides continuous downward pulling force, ensuring that the gear 2132 is closely engaged with the rack one 251 and the rack two 252 in the locked state, avoiding loosening of the gear 2132 during vibration to cause the column position of the support body 21 to deviate, and ensuring the support stability; when the gear 2132 is synchronously engaged with the two racks, the two side teeth form bidirectional restriction on the gear 2132, the locking effect is more reliable, and the support body 21 is prevented from moving during vibration; when the gear 2132 is only engaged with the rack one 251, it can be freely rolled, ensuring smooth movement of the support body 21 column and not causing jamming; the overall structure takes into account the adjustment convenience and the locking reliability, further improving the adaptability and use stability of the screen mesh of the vibrating screen.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. Vibrating screen mesh, characterized in that, The invention comprises a skeleton (1), a plastic frame (2) and a wire mesh (3), wherein the plastic frame (2) is wrapped around the skeleton (1), the plastic frame (2) comprises a plurality of interconnected support bodies (21), the support bodies (21) are capable of forming a boss structure, and the wire mesh (3) is wavy and wrapped around the plastic frame (2) so that the boss structure of the support body (21) can be supported below the wire mesh (3).

2. The vibrating screen according to claim 1, characterized in that The wire mesh (3) has a wave crest (31), and the support body (21) has a protrusion (211) and a plurality of ribs (212) connected to each other, wherein the ribs (212) are distributed around the protrusion (211), the protrusion (211) is used to connect and support the wave crest (31), and the ribs (212) are used to connect and support the two inner side walls of the wave crest (31).

3. The vibrating screen according to claim 2, characterized in that The ribs (212) have an inclined surface (2121) that fits in contact with the inner side wall of the wave crest (31).

4. The vibrating screen according to claim 2, characterized in that A drop hole (22) for material to pass through is formed between two adjacent support bodies (21), and the wire mesh (3) has a screening area (32) connected to the drop hole (22), and a plurality of the screening areas (32) are correspondingly located at the wave crest (31) and the wave trough.

5. The vibrating screen according to claim 4, characterized in that The horizontal projections of the blanking hole (22) and the screening area (32) are both diamond-shaped holes.

6. The vibrating screen according to claim 4, characterized in that The frame (1) comprises a base (11) and a mesh (12) connected to each other, the mesh (12) comprising a through hole (121) communicating with the blanking hole (22), the mesh (12) further comprising a plurality of through holes (122), the through holes (122) being distributed on the periphery of the frame (1), and the inner walls of the through holes (122) being connected to a plurality of protrusions (1221) arranged along the circumference.

7. The vibrating screen according to claim 1, characterized in that A mounting seat (23) is further provided at the edge of the plastic frame (2), and an opening (24) is provided on the plastic frame (2) on one side of the mounting seat (23). The mounting seat (23) is located on one side of the wire mesh (3), and the opening (24) is located below the wire mesh (3). A pressing plate (231) capable of lifting and moving is provided through the mounting seat (23), and the outer end of the pressing plate (231) has a stepped truncated cone portion (2311). The truncated cone portion (2311) is configured to press down the wire mesh (3) and press the end of the wire mesh (3) into the opening (24) after the pressing plate (231) descends.

8. The vibrating screen according to claim 7, characterized in that The mounting seat (23) is provided with a column connected to the pressure plate (231), and the column is sleeved with a sleeve (232), and the side wall of the sleeve (232) has a spirally extended arc-shaped through groove (2321), and the outer periphery of the column has a radially extended limit rod (2312), and the limit rod (2312) passes through the arc-shaped through groove (2321) and slides with the arc-shaped through groove (2321), and an elastic member (233) is connected between the column and the plastic frame (2), and the elastic member (233) is used to provide the pressure plate (231) with a force to press the wire mesh (3) downward, and the pressure plate (231) is configured to swing horizontally to the top of the opening (24) and press the wire mesh (3) downward under the elastic force of the elastic member (233) through the cooperation of the limit rod (2312) and the arc-shaped through groove (2321).

9. The vibrating screen according to claim 2, characterized in that: The plastic frame (2) has a plurality of slide grooves (25), which extend along the length direction of the plastic frame (2) and are spaced apart along the width direction of the plastic frame (2). The slide grooves (25) are located below two adjacent support bodies (21). The support bodies (21) are connected to each other along the extension direction of the wave crest (31) to form a plurality of rows. Each row is movable and arranged in the slide grooves (25) to adjust the distance between two adjacent rows of support bodies (21) to adapt to the size of the wave crest (31) or the wave trough.

10. The vibrating screen according to claim 9, characterized in that The slide groove (25) is provided with a rack 1 (251) and a rack 2 (252) distributed up and down, the teeth of the rack 1 (251) and the rack 2 (252) are arranged opposite to each other, and a mounting plate (213) is provided between two adjacent support bodies (21), and a lifting shaft (2131) extending downward is provided on the mounting plate (213), and a gear (2132) is rotatably provided on the lifting shaft (2131), and the gear (2132) is engaged with the rack 1 (251) alone or engaged with the rack 1 (251) and the rack 2 (252) synchronously, and the mounting plate (213) and the lifting shaft (2131) are provided. ) is also connected with an elastic member 2 (214), the elastic member 2 (214) is used to provide a force for the lifting shaft (2131) to descend so that the gear (2132) is synchronously meshed with the rack 1 (251) and the rack 2 (252), and the gear (2132) is configured to follow the lifting shaft (2131) to descend and then synchronously mesh with the rack 1 (251) and the rack 2 (252) to lock the position of the support body (21); the gear (2132) follows the lifting shaft (2131) to rise and then meshes with the rack 1 (251) to release the lock on the support body (21).

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