Polyurethane sieve plate with conical hole structure

Abstract

The utility model relates to the technical field of polyurethane sieve plates, in particular to a conical hole structure polyurethane sieve plate which comprises a sieve plate body, a side plate is installed on the outer side of the sieve plate body, a plurality of sets of sieve holes are formed in the sieve plate body, and a guide groove is formed in the position, close to the top end of the sieve plate body, of the inner side of the side plate. A sweeping and pushing mechanism is installed on the side plate and comprises a sweeping assembly, a movable assembly and a pushing assembly, the movable assembly is used for driving the pushing assembly to be close to or away from the sieve plate body, and the pushing assembly is used for pushing out material particles clamped on the inner sides of the sieve holes; the sweeping assembly is used for sweeping materials with unqualified sizes on the top of the sieve plate main body; the movable assembly comprises a fixed cylinder embedded and mounted at one end of the top of the side plate; the material screening device is simple in structure and convenient to operate, part of materials clamped into the inner sides of the small ends of the screening holes by workers can be conveniently ejected out and swept out, and the subsequent material screening effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane sieve plates, in particular to a polyurethane sieve plate with a conical hole structure. Background Art

[0002] Vibrating screen is a kind of screening equipment widely used in mines, mainly used for grading materials. Traditional screen plates are mostly made of metal, which has poor wear resistance, elasticity and corrosion resistance, and is noisy when used, short service life and high processing cost. In recent years, polyurethane screen plates have gradually emerged. They are widely used in vibrating screens because of their good wear resistance, elasticity, sound absorption, long service life and low processing cost. The plate vibrates under the drive of the vibrator. The screen plate has straight round holes and square holes of different specifications as screen holes. The ore passes through the screen holes under the action of vibration, so as to separate ores of different particle sizes. When screening on the vibrating screen, it is easy to get stuck in the screen holes, resulting in blockage of the screen holes and low screening efficiency.

[0003] In order to solve the above technical problems, a Chinese patent with announcement number CN218610390U in the prior art discloses a polyurethane sieve plate with a conical hole structure, including the following technical scheme. The polyurethane sieve plate with a conical hole structure includes: an anti-blocking sieve hole is penetrated through the upper surface of the sieve plate, and the opening diameter of the anti-blocking sieve hole at one end of the upper surface of the sieve plate is smaller than the opening diameter at one end of the lower surface of the sieve plate, and a cleaning device is also provided on the upper surface of the sieve plate.

[0004] Although the above-mentioned prior art solution can improve the situation of material blocking in the sieve holes, some sizes of sieve materials will be stuck inside the smaller end of the sieve holes, and it is difficult to sweep them out when the brush is brushed, thereby affecting the subsequent screening effect. Utility Model Content

[0005] The utility model aims to provide a polyurethane sieve plate with a conical hole structure to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A polyurethane sieve plate with a conical hole structure comprises a sieve plate body, a side plate is installed on the outer side of the sieve plate body, a plurality of sieve holes are arranged inside the sieve plate body, a guide groove is opened on the inner side of the side plate near the top of the sieve plate body, a cleaning and pushing mechanism is installed on the side plate, the cleaning and pushing mechanism comprises a cleaning component, a movable component and a pushing component, the movable component is used to drive the pushing component to approach or move away from the sieve plate body, the pushing component is used to push out material particles stuck on the inner side of the sieve hole, and the cleaning component is used to sweep materials with unqualified sizes on the top of the sieve plate body.

[0008] As a preferred solution of the present utility model, the movable assembly includes a fixed cylinder embedded and installed at one end of the top of the side plate. A first lead screw is rotatably connected inside the fixed cylinder. A pushing cylinder is threadedly connected to the outside of the first lead screw. A pushing groove for slidably connecting with the pushing cylinder is formed at one end inside the side plate. A first motor is installed at the top end of the fixed cylinder. The driving end of the first motor extends inside the fixed cylinder and is fixedly connected to one end of the first lead screw.

[0009] As a preferred solution of the present utility model, limiting grooves are formed on both sides inside the fixed cylinder. Limiting blocks are installed on both sides of the pushing cylinder. The limiting blocks are slidably connected with the limiting grooves.

[0010] As a preferred solution of the present utility model, the material pushing assembly includes a mounting plate installed at the bottom end of the pushing cylinder. A pushing frame is installed at one end of the mounting plate. A plurality of push rods are arranged and installed at the top end of the pushing frame. The diameter of the upper part inside the sieve holes is smaller than that of the lower part. The push rods are slidably connected with the sieve holes.

[0011] As a preferred solution of the present utility model, the cleaning assembly includes an adjustment groove formed at one end of the top of the side plate. A second lead screw is rotatably connected inside the adjustment groove. An adjustment plate is threadedly connected to the outside of the second lead screw. The adjustment plate is slidably connected with the adjustment groove. A sweeping plate is clamped at the bottom end of the adjustment plate through a positioning assembly. A soft brush is installed at the bottom end of the sweeping plate. A second motor is installed at one end of the side plate. The driving end of the second motor extends inside the adjustment groove and is fixedly connected to one end of the second lead screw.

[0012] As a preferred solution of the present utility model, both the first lead screw and the second lead screw are reciprocating lead screws. The length of the soft brush is slightly greater than the distance from the bottom surface of the sweeping plate to the top surface of the sieve plate body.

[0013] As a preferred solution of the present utility model, the positioning assembly includes a docking groove formed at one end of the bottom of the adjustment plate. A docking plate slidably connected with the docking groove is installed at one end of the top of the sweeping plate. Fixing plates are installed at both ends on one side of the adjustment plate. Limiting grooves are formed on the opposite surfaces of the two fixing plates. A limiting plate is slidably connected inside the limiting groove. A spring is installed between one side of the limiting plate and the inner wall of the limiting groove. A pull ring is installed at one end of the limiting plate. A positioning post is installed at the other end of the limiting plate. A positioning hole extending into the docking plate is formed on one side of the adjustment plate. The positioning post is snap-fitted with the positioning hole.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, the pushing component can be driven by the movable component to approach or move away from the sieve plate main body. The pushing component can push out the material particles stuck inside the sieve holes, and the cleaning component sweeps the materials with unqualified sizes on the top of the sieve plate main body. The structure is simple and the operation is convenient, which is convenient for the staff to push out the part of the materials stuck inside the smaller end of the sieve holes and sweep them out, ensuring the subsequent screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a three-dimensional structure diagram of the pushing frame of the present utility model;

[0018] Figure 3 is a partial cross-sectional structure diagram of the side plate and the fixed cylinder of the present utility model;

[0019] Figure 4 is of the present utility model Figure 1 A partial enlarged structure diagram.

[0020] In the figure: 1, sieve plate main body; 2, side plate; 3, sieve hole; 4, guide groove; 5, fixed cylinder; 6, first screw rod; 7, pushing cylinder; 8, first motor; 9, limit block; 10, pushing frame; 11, push rod; 12, second screw rod; 13, adjusting plate; 14, sweeping plate; 15, soft brush; 16, docking plate; 17, fixing plate; 18, limit plate; 19, positioning column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment:

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] A polyurethane sieve plate with a conical hole structure, comprising a sieve plate main body 1, a side plate 2 is installed on the outer side of the sieve plate main body 1, a plurality of groups of sieve holes 3 are arranged inside the sieve plate main body 1, a guide groove 4 is opened on the inner side of the side plate 2 near the top end of the sieve plate main body 1, a cleaning and pushing mechanism is installed on the side plate 2, the cleaning and pushing mechanism includes a cleaning component, a moving component and a pushing component, the moving component is used to drive the pushing component to approach or move away from the sieve plate main body 1, the pushing component is used to push out the material particles stuck inside the sieve holes 3, and the cleaning component is used to sweep the unqualified materials on the top of the sieve plate main body 1. When in use, the sieve plate can drive the pushing component to approach or move away from the sieve plate main body 1 through the moving component. The pushing component can push out the material particles stuck inside the sieve holes 3, and the cleaning component sweeps the unqualified materials on the top of the sieve plate main body 1. The structure is simple and the operation is convenient, which is convenient for the staff to push out the part of the material stuck inside the smaller end of the sieve hole 3 and sweep it out, ensuring the subsequent screening effect.

[0025] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, the moving component includes a fixed cylinder 5 embedded and installed at one end of the top of the side plate 2. A first lead screw 6 is rotatably connected inside the fixed cylinder 5. A pushing cylinder 7 is threadedly connected to the outer side of the first lead screw 6. A pushing groove for sliding connection with the pushing cylinder 7 is opened at one end inside the side plate 2. A first motor 8 is installed at the top end of the fixed cylinder 5. The driving end of the first motor 8 extends into the fixed cylinder 5 and is fixedly connected to one end of the first lead screw 6. Limiting grooves are opened on both sides inside the fixed cylinder 5. Limiting blocks 9 are installed on both sides of the pushing cylinder 7. The limiting blocks 9 are in sliding connection with the limiting grooves. First of all, when screening materials, the materials fall from the sieve holes 3 and can fall from the hollow parts of the pushing frame 10. When the sieve holes 3 are blocked, the first motor 8 can be started to drive the first lead screw 6 to rotate, and the pushing cylinder 7 retracts accordingly with the cooperation of the limiting blocks 9 and the limiting grooves, driving the pushing component to move.

[0026] In this embodiment, as Figure 1 、 Figure 2 and Figure 3 shown, the pushing component includes a mounting plate installed at the bottom end of the pushing cylinder 7. A pushing frame 10 is installed at one end of the mounting plate. A plurality of groups of push rods 11 are arranged and installed at the top end of the pushing frame 10. The diameter of the upper part inside the sieve hole 3 is smaller than that of the lower part. The push rods 11 are in sliding connection with the sieve holes 3. Then, the pushing frame 10 fits on the bottom surface of the sieve plate main body 1, and the push rods 11 gradually enter the inside of the sieve holes 3 to push out the clamped material particles, making them on the top surface of the sieve plate main body 1.

[0027] In this embodiment, as Figure 1 、 Figure 2 and Figure 3As shown, the cleaning assembly includes an adjustment groove opened at one end of the top of the side plate 2. A second lead screw 12 is rotatably connected inside the adjustment groove. An adjustment plate 13 is threadedly connected to the outside of the second lead screw 12. The adjustment plate 13 is slidably connected to the adjustment groove. The bottom end of the adjustment plate 13 is snap-connected to a sweeping plate 14 through a positioning assembly. A soft brush 15 is installed at the bottom end of the sweeping plate 14. A second motor is installed at one end of the side plate 2. The driving end of the second motor extends inside the adjustment groove and is fixedly connected to one end of the second lead screw 12. Both the first lead screw 6 and the second lead screw 12 are reciprocating lead screws. The length of the soft brush 15 is slightly greater than the distance from the bottom surface of the sweeping plate 14 to the top surface of the sieve plate body 1. Further, start the second motor to drive the second lead screw 12 to rotate, and the adjustment plate 13 also slides inside the adjustment groove accordingly, driving the sweeping plate 14 and the soft brush 15 to sweep the material particles out along the guiding groove 4.

[0028] In this embodiment, as Figure 1 and Figure 4 shown, the positioning assembly includes a docking groove opened at one end of the bottom of the adjustment plate 13. A docking plate 16 slidably connected to the docking groove is installed at one end of the top of the sweeping plate 14. Fixing plates 17 are installed at both ends on one side of the adjustment plate 13. Limiting grooves are opened on the opposite surfaces of the two groups of fixing plates 17. Limiting plates 18 are slidably connected inside the limiting grooves. Springs are installed between one side of the limiting plates 18 and the inner walls of the limiting grooves. A pull ring is installed at one end of the limiting plate 18. A positioning post 19 is installed at the other end of the limiting plate 18. A positioning hole extending into the inside of the docking plate 16 is opened on one side of the adjustment plate 13. The positioning post 19 is snap-connected to the positioning hole. Further, pull the pull ring to make the two ends of the limiting plate 18 slide inside the limiting groove, and at the same time squeeze the two groups of springs to retract. The positioning post 19 also gradually disengages from the positioning hole inside the docking plate 16. After it is completely disengaged, the sweeping plate 14 together with the soft brush 15 can be removed to facilitate timely replacement of the worn soft brush 15 after long-term use.

[0029] The implementation principle of a polyurethane sieve plate with a conical hole structure in an embodiment of the present application is as follows: When screening materials, the materials fall from the sieve holes 3 and can also fall from the hollow part of the pushing frame 10. When the sieve holes 3 are blocked, the first motor 8 can be started to drive the first lead screw 6 to rotate, and the pushing cylinder 7 retracts along with the limiting block 9 and the limiting groove, driving the material pushing assembly to move. The pushing frame 10 fits against the bottom surface of the sieve plate main body 1, and the push rod 11 gradually enters the inner side of the sieve hole 3 to eject the clamped material particles, making them on the top surface of the sieve plate main body 1. Then, the second motor is started to drive the second lead screw 12 to rotate, and the adjusting plate 13 also slides inside the adjusting groove accordingly, driving the sweeping plate 14 and the soft brush 15 to sweep the material particles out along the guiding groove 4. Pull the pull ring, causing the two ends of the limiting plate 18 to slide inside the limiting groove, and at the same time squeezing the two groups of springs to retract, and the positioning column 19 gradually disengages from the positioning hole inside the docking plate 16. After it is completely disengaged, the sweeping plate 14 together with the soft brush 15 can be removed to replace the worn soft brush 15 in time after long-term use.

[0030] The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in the art. Moreover, the present utility model is used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail herein.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A polyurethane sieve plate with a conical hole structure, comprising a sieve plate body (1), characterized in that: A side plate (2) is installed on the outside of the sieve plate main body (1). A plurality of sieve holes (3) are arranged inside the sieve plate main body (1). A guide groove (4) is opened on the inner side of the side plate (2) near the top of the sieve plate main body (1). A cleaning and pushing mechanism is installed on the side plate (2). The cleaning and pushing mechanism includes a cleaning component, a moving component and a pushing component. The moving component is used to drive the pushing component to approach or move away from the sieve plate main body (1). The pushing component is used to push out the material particles stuck inside the sieve holes (3). The cleaning component is used to sweep the materials with unqualified sizes on the top of the sieve plate main body (1).

2. The polyurethane sieve plate with a tapered hole structure according to claim 1, characterized in that: The moving component includes a fixed cylinder (5) embedded and installed at one end of the top of the side plate (2). A first lead screw (6) is rotatably connected inside the fixed cylinder (5). A pushing cylinder (7) is threadedly connected to the outside of the first lead screw (6). A pushing groove for sliding connection with the pushing cylinder (7) is opened at one end inside the side plate (2). A first motor (8) is installed at the top of the fixed cylinder (5). The driving end of the first motor (8) extends inside the fixed cylinder (5) and is fixedly connected to one end of the first lead screw (6).

3. The polyurethane sieve plate with a tapered hole structure according to claim 2, characterized in that: Limit grooves are opened on both sides inside the fixed cylinder (5). Limit blocks (9) are installed on both sides of the pushing cylinder (7). The limit blocks (9) are in sliding connection with the limit grooves.

4. A polyurethane sieve plate with a tapered hole structure according to claim 3, characterized in that: The pushing component includes a mounting plate installed at the bottom end of the pushing cylinder (7). A pushing frame (10) is installed at one end of the mounting plate. A plurality of push rods (11) are arranged and installed at the top of the pushing frame (10). The diameter of the upper part inside the sieve hole (3) is smaller than that of the lower part. The push rods (11) are in sliding connection with the sieve holes (3).

5. The polyurethane sieve plate with a tapered hole structure according to claim 4, wherein: The cleaning component includes an adjustment groove opened at one end of the top of the side plate (2). A second lead screw (12) is rotatably connected inside the adjustment groove. An adjustment plate (13) is threadedly connected to the outside of the second lead screw (12). The adjustment plate (13) is in sliding connection with the adjustment groove. A sweeping plate (14) is clamped to the bottom end of the adjustment plate (13) through a positioning component. A soft brush (15) is installed at the bottom end of the sweeping plate (14). A second motor is installed at one end of the side plate (2). The driving end of the second motor extends inside the adjustment groove and is fixedly connected to one end of the second lead screw (12).

6. The polyurethane sieve plate with a tapered hole structure according to claim 5, characterized in that: Both the first lead screw (6) and the second lead screw (12) are reciprocating lead screws. The length of the soft brush (15) is slightly greater than the distance from the bottom surface of the sweeping plate (14) to the top surface of the sieve plate main body (1).

7. The polyurethane sieve plate with a tapered hole structure according to claim 6, characterized in that: The positioning component includes a docking groove formed at one end of the bottom of the adjusting plate (13). A docking plate (16) slidably connected to the docking groove is installed at one end of the top of the sweeping plate (14). Fixing plates (17) are installed at both ends of one side of the adjusting plate (13). Limiting grooves are formed on the opposite surfaces of the two groups of fixing plates (17). A limiting plate (18) is slidably connected inside the limiting groove. A spring is installed between one side of the limiting plate (18) and the inner wall of the limiting groove. A pull ring is installed at one end of the limiting plate (18). A positioning post (19) is installed at the other end of the limiting plate (18). A positioning hole extending into the interior of the docking plate (16) is formed on one side of the adjusting plate (13). The positioning post (19) is in snap connection with the positioning hole.

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