Adjustable screen and workbench thereof

Abstract

The utility model relates to the technical field of adjustable screens, and provides an adjustable screen and a workbench thereof.The adjustable screen comprises a screen frame and a pressing plate, the screen frame is annular, one end of the screen frame in the axial direction is open and used for covering the screen, the screen frame is detachably sleeved with the pressing plate, and a limiting area is formed between the pressing plate and the screen frame; the edge of the screen is located in the limiting area. The pressing plate comprises a plurality of arc-shaped blocks and a plurality of locking pieces, the arc-shaped blocks form an annular structure, and every two adjacent arc-shaped blocks are connected through the locking pieces. By arranging the pressing plate with the variable inner diameter, the screen mesh is clamped on the limiting area formed between the pressing plate and the screen mesh frame to be fixed, and therefore the effect that a rigid screen mesh or a flexible screen mesh can be installed is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of adjustable screen, in particular to an adjustable screen and a workbench thereof. BACKGROUND

[0002] With the continuous expansion of the ceramic industry, the demand for vibrating screen to handle larger flow of ceramic slurry is increasing, and the strict requirements for the particle size distribution of raw materials make it difficult for the screening precision of traditional screen devices to meet the high precision demand, which easily leads to fluctuations in product quality, thereby reducing the market competitiveness of enterprises. High-quality ceramic slurry is the key to ensure product performance and quality, and the tightness of the screen of the vibrating screen, as a key equipment for ceramic slurry treatment, directly affects the screening effect of impurities, particles, etc. If the screen is not tight enough, impurities and particles will gather towards the center of the screen under the action of gravity, resulting in poor screening effect, such as impurity and particle agglomeration, which affects production efficiency and product quality. Therefore, higher requirements are put forward for screening precision and particle size control.

[0003] In the structural design of vibrating screen, a frame structure is usually adopted, and the screen is installed on the frame through bolts, welding or other fixing methods. For example, the patent with publication number CN105149217B discloses a screen-replaceable standard screen, which fixes the screen with fixed shape on the cylinder through fastening bolts to achieve the effect of convenient screen replacement. However, it cannot tighten flexible screens such as nylon wire mesh, and can only install screens with higher hardness, which cannot meet the use demand. CONTENT OF THE UTILITY MODEL

[0004] In view of the above shortcomings of the prior art, the purpose of the present application is to provide an adjustable screen and a workbench thereof, which aims to solve the problem that the existing replaceable screen vibrating screen cannot use flexible screens.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: an adjustable screen and a workbench thereof, comprising: a screen frame, the shape of the screen frame is annular, one end of the screen frame in the axial direction forms a screen end, and the opening of the screen end is used to cover the screen;

[0006] a pressing plate, the pressing plate is detachably sleeved on the screen frame, and a limiting area is formed between the pressing plate and the screen frame, and the edge of the screen is located in the limiting area;

[0007] The pressing plate comprises: a plurality of arc-shaped blocks, and the plurality of arc-shaped blocks form an annular structure;

[0008] a plurality of locking members, and each two adjacent arc-shaped blocks are connected by a plurality of locking members.

[0009] Further, the screen frame comprises a screen frame body, the screen frame body is annular in shape;

[0010] A limiting ring is arranged at one end of the screen frame body away from the screen end, and the limiting ring protrudes from the screen frame body in the radial direction of the screen frame body.

[0011] Further, the screen frame further comprises a rubber layer arranged on the outer surface of the screen frame body.

[0012] Further, the locking member comprises two connecting rings coaxially arranged on two adjacent arc-shaped blocks;

[0013] A plurality of gap rings are arranged between the two connecting rings, and the plurality of gap rings are coaxially arranged with the two connecting rings;

[0014] A connecting bolt is connected with the two connecting rings and the plurality of gap rings.

[0015] Further, the pressing plate further comprises a plurality of recessed portions formed by the inward ends of the plurality of arc-shaped blocks.

[0016] Further, the pressing plate further comprises a plurality of handles arranged at one end of the plurality of arc-shaped blocks away from the screen frame.

[0017] A workbench adopting the adjustable screen described above, comprising a workbench body;

[0018] A positioning mechanism is arranged on the surface of the workbench body, and the positioning mechanism is used for fixing the screen frame.

[0019] Further, the positioning mechanism comprises a plurality of positioning bolts arranged on the workbench body in the radial direction of the screen frame;

[0020] A plurality of positioning nuts are arranged one-to-one on the positioning bolts, and the plurality of positioning nuts are driven to move towards or away from the screen frame;

[0021] A plurality of elastic members are arranged one-to-one at one end of the plurality of positioning nuts towards the screen frame.

[0022] Further, the positioning bolts are arranged in eight, and the included angle between every two adjacent positioning bolts is 45 degrees.

[0023] Further, the workbench further comprises a plurality of G-shaped clamps, and the plurality of G-shaped clamps are used for connecting the screen frame, the pressing plate and the workbench body respectively.

[0024] Compared with the prior art, the pressing plate with variable inner diameter is arranged to fix the screen on the limiting area formed between the pressing plate and the screen frame, so that the rigid screen or the flexible screen can be installed. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is the overall structure schematic diagram of the adjustable screen and the workbench provided by the present embodiment;

[0027] Figure 2 is the overall structure schematic diagram of the pressing plate from another perspective provided by the present embodiment

[0028] Figure 3 is the overall structure schematic diagram of the pressing plate from another perspective provided by the present embodiment

[0029] Figure 4 is the overall structure schematic diagram of the screen frame provided by the present embodiment

[0030] Figure 5 is the overall structure schematic diagram of the screen frame and the positioning mechanism provided by the present embodiment

[0031] Figure 6 is the overall structure schematic diagram of the adjustable screen and the workbench (when the pressing plate is not installed) provided by the present embodiment. Figure 5 is the local enlarged structure schematic diagram of A in the present embodiment;

[0032] Figure 7 is the overall structure schematic diagram of the adjustable screen and the workbench (when the pressing plate is not installed) provided by the present embodiment.

[0033] In the drawings: 100, screen frame; 110, screen frame body; 120, limiting ring; 130, rubber layer; 200, pressing plate; 210, arc-shaped block; 211, recessed groove part; 220, locking piece; 221, connecting ring; 222, gap ring; 223, connecting bolt; 230, handle; 300, workbench body; 310, positioning mechanism; 311, positioning bolt; 312, positioning nut; 313, elastic piece; 320, G-shaped clamp; 400, screen. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, for the purpose of explaining the present application, and should not be understood as a limitation of the present application.

[0035] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, 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 of the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected 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 application can be understood according to the specific circumstances.

[0037] In addition, the technical features involved in the different embodiments of the utility model described above can be combined with each other as long as there is no conflict between them.

[0038] The utility model provides a kind of adjustable screen 400 and workbench as shown in Figures 1 to 7 The utility model provides a kind of adjustable screen 400 and workbench as shown in

[0039] The adjustable screen 400 mainly includes: screen frame 100 and pressing plate 200, the shape of screen frame 100 is annular, and the end of screen frame 100 in axial direction forms screen 400 end, and the opening of screen 400 end is used to cover screen 400;Pressing plate 200 is detachably sleeved on screen frame 100, and limiting area is formed between pressing plate 200 and screen frame 100, and the edge of screen 400 is located in limiting area.

[0040] Specifically, the shape of the limiting area is annular, the edges of the screen 400 are located in or pass through the limiting area, and the screen frame 100 and the pressing plate 200 clamp the screen 400, so that the screen 400 is fixed and covers the opening at the end of the screen 400. The screen 400 can be a rigid screen 400 or a flexible screen 400. It should be noted that the rigidity and flexibility here are relative. It is generally considered that the screen 400 placed on a horizontal plane can maintain a predetermined shape, which is a rigid screen 400, such as a stainless steel screen 400. If it cannot maintain a predetermined shape when placed on a horizontal plane, it is a flexible screen 400, such as a nylon wire mesh.

[0041] The pressing plate 200 includes a plurality of arc-shaped blocks 210 and a plurality of locking pieces 220. The plurality of arc-shaped blocks 210 form an annular structure, and each two adjacent arc-shaped blocks 210 are connected by the plurality of locking pieces 220.

[0042] Specifically, when the plurality of arc-shaped blocks 210 are separated or the plurality of arc-shaped blocks 210 are not locked by the plurality of locking pieces 220, the inner diameter of the annular structure formed by the plurality of arc-shaped blocks 210 is relatively large. At this time, the inner diameter of the annular structure is preferably greater than the sum of the outer diameter of the screen frame 100 and twice the thickness of the screen 400, so that the pressing plate 200 can be smoothly sleeved on the screen frame 100. Then, the screen 400 is arranged so that the part of the screen 400 at the opening at the end of the screen 400 is flattened, and then the plurality of arc-shaped blocks 210 are connected and locked by the plurality of locking pieces 220. At this time, the inner diameter of the annular structure is preferably less than the sum of the outer diameter of the screen frame 100 and the thickness of the screen 400, so that the pressing plate 200 and the screen frame 100 are in interference fit, and the installation is completed.

[0043] In the structural design of the vibrating screen, a frame structure is usually used, and the screen 400 is installed on the frame by bolts, welding or other fixing methods. For example, the patent with the publication number CN105149217B discloses a screen 400 replaceable standard screen, which fixes the screen 400 with a fixed shape on the cylinder by fastening bolts, so as to achieve the effect of conveniently replacing the screen 400. However, it cannot tighten the flexible screen 400 such as nylon wire mesh, and can only install the screen 400 with high hardness, which cannot meet the use demand.

[0044] The utility model discloses a variable inner diameter pressing plate 200, which is used to fix the screen 400 in the limiting area formed between the pressing plate 200 and the screen frame 100, so as to achieve the effect of installing the rigid screen 400 or the flexible screen 400.

[0045] In some embodiments, as shown in Figure 1 , Figure 4 and Figures 5 to 7 , the screen frame 100 includes a screen frame body 110, and the shape of the screen frame body 110 is annular.

[0046] A limiting ring 120 is arranged at one end of the screen frame body 110 away from the screen 400, and the limiting ring 120 protrudes radially from the screen frame body 110.

[0047] Specifically, the outer diameter of the limiting ring 120 is greater than the inner diameter of the pressing plate 200, and after assembly, the pressing plate 200 is in contact with the limiting ring 120, and the limiting ring 120 can limit the pressing plate 200 from being separated from one end of the screen frame 100 away from the screen 400, thereby improving stability.

[0048] In some embodiments, as shown in Figure 4 The screen frame 100 further comprises a rubber layer 130 arranged on the outer surface of the screen frame body 110.

[0049] Specifically, the screen frame 100 is made of a metal material to ensure sufficient strength and durability, and is externally wrapped with a rubber layer 130 to improve the friction between the screen 400 and the pressing plate 200 and improve stability.

[0050] In some embodiments, as shown in Figures 2 to 3 The locking member 220 comprises two connecting rings 221 coaxially arranged on two adjacent arc-shaped blocks 210, respectively.

[0051] A plurality of gap rings 222 are arranged between the two connecting rings 221, and the plurality of gap rings 222 are coaxially arranged with the two connecting rings 221.

[0052] A connecting bolt 223 is connected with the two connecting rings 221 and the plurality of gap rings 222, respectively.

[0053] Specifically, the pressing plate 200 is made of two semicircular semicircular iron blocks, and the two semicircular ends are respectively provided with connecting rings 221, which are welded on the semicircular iron blocks along the axis of the pressing plate 200. The two semicircular iron blocks can be connected and locked by connecting the connecting rings 221 at the two ends of the two semicircular iron blocks through the connecting bolt 223. And different numbers and thicknesses of gap rings 222 can be placed between the two connecting rings 221, and the gap rings 222 are preferably rubber blocks, so that the inner diameter of the pressing plate 200 can be adjusted according to the specifications of the screen frame 100, and the screen frame 100 of multiple specifications can be adapted.

[0054] In some embodiments, as shown in Figure 2 The pressing plate 200 further comprises a plurality of recessed portions 211, and the centripetal ends of the plurality of arc-shaped blocks 210 are recessed to form the recessed portions 211.

[0055] Specifically, during installation, the edges of the screen 400 will be folded when the screen 400 is fixed on the screen frame 100. By providing the groove part 211, the screen 400 can be adjusted so that the folded part of the screen 400 is located in the groove part 211, so that the connection between the screen 400 and the screen frame 100 is more stable.

[0056] In some embodiments, as shown in Figures 2 to 3 The pressing plate 200 further comprises a plurality of handles 230, which are respectively arranged at the ends of the plurality of arc-shaped blocks 210 away from the screen frame 100. This facilitates the installation of the screen 400 by the workers.

[0057] A workbench adopting the adjustable screen 400 described above comprises a workbench body 300.

[0058] A positioning mechanism 310 is arranged on the surface of the workbench body 300, and is used to fix the screen frame 100.

[0059] In actual assembly, the end of the screen frame 100 away from the screen frame 100 is brought into contact with the workbench body 300, and then the screen frame 100 is fixed on the workbench body 300 by the positioning mechanism 310, which facilitates the installation of the screen 400.

[0060] In some embodiments, as shown in Figure 1 、 Figures 5 to 7 The positioning mechanism 310 comprises a plurality of positioning bolts 311, which are arranged on the workbench body 300 along the radial direction of the screen frame 100.

[0061] A plurality of positioning nuts 312 are arranged on the positioning bolts 311 one by one, and are driven to move towards or away from the screen frame 100.

[0062] A plurality of elastic members 313 are arranged on the ends of the plurality of positioning nuts 312 towards the screen frame 100 one by one.

[0063] In the structural design of the vibrating screen, a frame structure is usually adopted, and the screen 400 is installed on the frame by means of bolts, welding or other fixing methods. However, such installation methods have many problems in actual operation. First, the installation process is complicated and requires a large amount of time and human resources. When installing the screen 400, workers need to use various tools for fastening operation, and when replacing the screen 400, many auxiliary parts may need to be removed. The whole process is complicated and inefficient, and the flatness and tightness of the installation are not high.

[0064] Specifically, the elastic member 313 can be selected from a spring or a rubber block, etc. having elasticity. The distance between the positioning nut 312 and the screen frame 100 can be adjusted by rotating the positioning nut 312. When the distance between the positioning nut 312 and the screen frame 100 is less than the length of the elastic member 313, the elastic member 313 is compressed. The positioning nut 312 can be rotated by experience to fix the screen frame 100 to the workbench body 300 without damaging the screen frame 100. The positioning mechanism 310 can be adapted to screen frames 100 of different specifications.

[0065] In some embodiments, as shown in Figures 5 to 7 The positioning bolt 311 is provided with eight positioning bolts 311, and the included angle between every two adjacent positioning bolts 311 is 45 degrees.

[0066] Specifically, the eight positioning bolts 311 are evenly distributed on the workbench body 300, so that the inner surface of the screen frame 100 is subjected to a relatively uniform force, and the screen frame 100 is not easy to fall off, facilitating the installation of the screen 400 by the worker.

[0067] In some embodiments, as shown in Figure 1 The workbench further comprises a plurality of G-shaped clamps 320, and the plurality of G-shaped clamps 320 are used to connect the screen frame 100, the pressing plate 200 and the workbench body 300, respectively.

[0068] Specifically, the limiting ring 120, the pressing plate 200 and the workbench body 300 can be connected together by the G-shaped clamp 320. In the actual assembly process, the screen frame 100 can be placed on the workbench body 300, and then the screen frame 100 is fixed by the positioning mechanism 310. Preferably, the plurality of positioning bolts 311 are loosened to facilitate the removal of the screen frame 100.

[0069] The screen 400 is laid on the opening at the end of the screen 400 to cover the opening at the end of the screen 400, and then the pressing plate 200 is sleeved on the screen frame 100. Then the screen 400 is arranged to avoid wrinkles on the screen 400 at the opening at the end of the screen 400.

[0070] The pressing plate 200 and the workbench body 300 are clamped by the G-shaped clamp 320. At this time, the limiting ring 120 of the screen frame 100 is located between the pressing plate 200 and the workbench body 300 and is also fixed, and the screen 400 is clamped by the limiting ring 120 and the pressing plate 200. By adjusting the tightness of the G-shaped clamp 320, the screen 400 can be tightened, and then locked by the locking member 220 to reduce the inner diameter of the pressing plate 200, so as to fix the screen 400. Finally, the G-shaped clamp 320 is removed to complete the assembly.

[0071] In conclusion, the adjustable screen and its workbench are provided, which comprises a screen frame and a pressing plate, the shape of the screen frame is annular, the screen frame is opened at one end in the axial direction for covering the screen, the pressing plate is detachably sleeved on the screen frame, a limiting area is formed between the pressing plate and the screen frame, and the edge of the screen is located in the limiting area; the pressing plate comprises a plurality of arc blocks and a plurality of locking pieces, the plurality of arc blocks form an annular structure, and every two adjacent arc blocks are connected through the plurality of locking pieces. The pressing plate with variable inner diameter is arranged to fix the screen on the limiting area formed between the pressing plate and the screen frame, so that the effect of installing rigid screen or flexible screen is achieved.

[0072] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Other different forms of changes or variations can be made on the basis of the above description for ordinary skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An adjustable screen, characterized in that, The application relates to a screen frame and a workbench. The screen frame comprises a screen frame body in a ring shape; a limiting ring arranged at one end of the screen frame body away from the screen end and protruding from the screen frame body in the radial direction of the screen frame body. The screen frame further comprises a rubber layer arranged on the outer surface of the screen frame body. The locking member comprises two connecting rings coaxially arranged on two adjacent arc-shaped blocks respectively; a plurality of gap rings arranged between the two connecting rings and coaxially arranged with the two connecting rings; and a connecting bolt connected with the two connecting rings and the plurality of gap rings respectively. The pressing plate further comprises a plurality of recessed portions formed by the centripetal ends of the plurality of arc-shaped blocks.

2. The adjustable screen of claim 1, wherein, The pressing plate further comprises a plurality of handles arranged at one end of the plurality of arc-shaped blocks away from the screen frame. The workbench comprises a workbench body; a positioning mechanism arranged on the surface of the workbench body and used for fixing the screen frame.

3. The adjustable screen of claim 2, wherein, The positioning mechanism comprises a plurality of positioning bolts arranged on the workbench body in the radial direction of the screen frame; a plurality of positioning nuts arranged on the positioning bolts one by one and driven to move towards or away from the screen frame; and a plurality of elastic members arranged at one end of the plurality of positioning nuts towards the screen frame.

4. The adjustable screen of claim 1, wherein, The positioning bolt is arranged in eight, and the included angle between every two adjacent positioning bolts is 45 degrees. The workbench further comprises a plurality of G-shaped clamps used for connecting the screen frame, the pressing plate and the workbench body respectively. ​ 5. The adjustable screen of claim 1, wherein, ​ 6. The adjustable screen of claim 1, wherein, ​ 7. A worktable employing the adjustable screen of any one of claims 1-6, characterized in that, ​ ​ ​ 8. A workbench according to claim 7, characterised in that ​ ​ ​ 9. A worktable according to claim 8, characterised in that ​ 10. The worktable of claim 7, wherein, ​

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