A mineral screening machine vibrating screen structure with self-cleaning function

Abstract

The utility model discloses a mineral screening machine vibrating screen net structure with self -cleaning function, including base, the top of base is provided with the damping frame, the top of damping frame is provided with the screening hopper, the bottom of screening hopper is provided with vibrator, the both sides of screening hopper are provided with sliding slot, the inside of sliding slot is provided with sliding block, sliding block and sliding slot sliding connection, sliding block and connecting plate fixed connection, the both sides of screening hopper are provided with elevating gear, elevating gear is connected with sliding block. The utility model discloses through the conical design of cleaning thimble and the spiral groove of broken block, can effectively penetrate and break the plug in screen mesh, thoroughly remove the mineral particle of adhesion, significantly improve the screening efficiency and flux, elevating gear cooperation sliding slot, sliding block and extension rod, realize the up-down reciprocating motion of connecting plate and cleaning thimble, the automatic cleaning screen, avoid manual shutdown cleaning.

Description

Technical Field

[0001] This utility model relates to the field of mineral screening technology, and in particular to a vibrating screen structure for a mineral screening machine with self-cleaning function. Background Technology

[0002] Mining screens are metal mesh structural elements used for screening and filtering, mainly made of low-carbon steel wire, high-manganese steel wire, or stainless steel wire. Their wire cross-section is trapezoidal, with narrower gaps at the top and wider gaps at the bottom, exhibiting wear resistance, corrosion resistance, and high strength. Product types include stainless steel welded screens, vibrating screens, and slotted screens, widely used in screening, filtering, and dewatering / desliming operations in mining, coal, and petroleum industries. They can be processed into rigid devices such as flat screen plates and arc-shaped screens.

[0003] In existing technologies, the screen structure of mineral screening machines generally suffers from the problem of screen holes being easily clogged by fine particles, especially when processing sticky minerals or high-moisture materials. Impurities accumulate rapidly on the screen surface, leading to a sharp decline in screening efficiency. Traditional solutions typically rely on vibrators to assist screening, but vibration itself cannot completely remove stubborn adhering substances and may even exacerbate screen wear. In addition, existing cleaning methods often require manual shutdown for cleaning, such as using high-pressure water guns or mechanical brushes. This not only requires frequent interruptions to the production process, increasing labor costs and downtime, but may also cause screen deformation or damage, affecting the service life of the equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a vibrating screen structure for a mineral screening machine with a self-cleaning function in order to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: This utility model discloses a vibrating screen structure for a mineral screening machine with self-cleaning function, comprising a base, a shock-absorbing frame at the top of the base, a screening hopper at the top of the shock-absorbing frame, a vibrator at the bottom of the screening hopper, a screening screen inside the screening hopper, a connecting plate at the bottom side of the screening screen, a cleaning pin fixedly mounted on the top surface of the connecting plate, the cleaning pin corresponding to the mesh of the screening screen, sliding grooves on both sides of the screening hopper, sliding blocks inside the sliding grooves, the sliding blocks slidably connected to the sliding grooves, the sliding blocks fixedly connected to the connecting plate, and lifting devices on both sides of the screening hopper, the lifting devices being connected to the sliding blocks.

[0006] As a preferred technical solution of the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, the lifting device includes a synchronous motor, and the bottom of the synchronous motor is connected to a connecting screw. The connecting screw is threadedly connected to the portion of the sliding block extending out of the sliding groove.

[0007] As a preferred technical solution of the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, an extension rod is provided on one side of the sliding block extending out of the sliding groove. Vertical auxiliary holes are opened on both sides of the extension rod. A sliding rod is provided inside the auxiliary holes. Limit blocks are provided at the top and bottom of the sliding rod. Limit switches are provided at the top and bottom of one side of the extension rod.

[0008] As a preferred technical solution of the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, a controller is provided on one side of the base. The controller is electrically connected to the vibrator and the synchronous motor, and the synchronous motor is electrically connected to the limit switch.

[0009] As a preferred technical solution of the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, the cleaning pin is conical in shape, the cleaning pin includes a base, a crushing block is provided on the top of the base, and a lifting block is provided on the top of the crushing block.

[0010] As a preferred technical solution of the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, the surface of the crushed block is provided with spiral grooves.

[0011] As a preferred technical solution for the vibrating screen structure of a mineral screening machine with self-cleaning function according to this utility model, the lifting block is made of hard alloy material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the conical design of the cleaning pin and the spiral grooves of the crushing block to effectively penetrate and break up blockages in the screen mesh, thoroughly removing adhered mineral particles and significantly improving screening efficiency and throughput. The lifting device, in conjunction with the sliding groove, sliding block, and extension rod, enables the connecting plate and cleaning pin to reciprocate up and down, automating screen cleaning and avoiding manual downtime, thus reducing production interruption. The controller integrates a vibrator, synchronous motor, and limit switch for intelligent operation, allowing for preset cleaning cycles or manual start based on the degree of blockage, enhancing equipment reliability and automation. The lifting block is made of hard alloy material, which is wear-resistant and corrosion-resistant, extending the service life of the cleaning pin and reducing maintenance costs and replacement frequency. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting plate structure of this utility model; Figure 3 This is a schematic diagram of the cleaning ejector pin structure of this utility model; Figure 4 yes Figure 1 Enlarged view of the structure at point A; In the diagram: 1. Base; 11. Controller; 2. Shock absorber; 3. Screening hopper; 31. Sliding groove; 32. Sliding block; 33. Extension rod; 34. Auxiliary hole; 35. Sliding rod; 36. Limit block; 37. Limit switch; 4. Vibrator; 5. Screening mesh; 6. Connecting plate; 7. Cleaning pin; 71. Base; 72. Crushing block; 73. Lifting block; 74. Spiral groove; 8. Lifting device; 81. Connecting screw; 82. Synchronous motor. Detailed Implementation

[0014] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0015] In the attached diagram, all identical reference numerals refer to the same components.

[0016] Example 1 like Figure 1-4 As shown, the device includes a base 1, a shock-absorbing frame 2 on top of the base 1, a screening hopper 3 on top of the shock-absorbing frame 2, a vibrator 4 at the bottom of the screening hopper 3, a screening mesh 5 inside the screening hopper 3, a connecting plate 6 on the bottom side of the screening mesh 5, a cleaning pin 7 fixedly mounted on the top surface of the connecting plate 6, the cleaning pin 7 corresponding to the mesh of the screening mesh 5, sliding grooves 31 on both sides of the screening hopper 3, sliding blocks 32 inside the sliding grooves 31, the sliding blocks 32 slidably connected to the sliding grooves 31, the sliding blocks 32 fixedly connected to the connecting plate 6, and lifting devices 8 on both sides of the screening hopper 3, the lifting devices 8 being connected to the sliding blocks 32.

[0017] Furthermore, the lifting device 8 includes a synchronous motor 82, and a connecting screw 81 is driven to the bottom of the synchronous motor 82. The connecting screw 81 is threadedly driven to the sliding block 32 extending out of the sliding groove 31.

[0018] An extension rod 33 is provided on one side of the sliding block 32 extending out of the sliding groove 31. Vertical auxiliary holes 34 are opened on both sides of the extension rod 33. A sliding rod 35 is provided inside the auxiliary holes 34. Limit blocks 36 are provided at the top and bottom of the sliding rod 35. Limit switches 37 are provided at the top and bottom of one side of the extension rod 33.

[0019] A controller 11 is provided on one side of the base 1. The controller 11 is electrically connected to the vibrator 4 and the synchronous motor 82. The synchronous motor 82 is electrically connected to the limit switch 37. The controller 11 controls the start of the vibrator 4 and the synchronous motor 82. When the vibrator 4 is turned on, the screening bucket starts to screen for mineral screening. The synchronous motor 82 drives the connecting screw 81 to rotate, which drives the sliding block 32 to move vertically along the sliding groove 31, so that the cleaning pins 7 array fixed to the connecting plate 6 can be accurately inserted into the mesh of the screening screen 5. When the limit switch 37 moves to the contact limit block 36, it triggers the motor to reverse, so that the connecting plate 6 reciprocates at high frequency, and the cleaning pins 7 clean the screening screen 5 repeatedly.

[0020] The cleaning ejector pin 7 is conical in shape and includes a base 71. A breaking block 72 is provided on the top of the base 71, and a lifting block 73 is provided on the top of the breaking block 72.

[0021] The surface of the broken block 72 is provided with a spiral groove 74, which generates a shearing force on the adhered material when it is raised or lowered.

[0022] The lifting block 73 is made of cemented carbide. The cemented carbide lifting block 73 directly pushes up the blockage. The cemented carbide can effectively lift and break up hard minerals.

[0023] In practical use, the controller 11 controls the start of the vibrator 4 and the synchronous motor 82. When the vibrator 4 is turned on, the screening bucket begins to screen for mineral screening. The synchronous motor 82 drives the connecting screw 81 to rotate, which drives the sliding block 32 to move vertically along the sliding groove 31, so that the cleaning pins 7 array fixed to the connecting plate 6 can be accurately inserted into the mesh of the screening screen 5. The three-stage structure design of the pins: base 71-crushing block 72-lifting block 73. During the lifting process, the lifting block 73 made of hard alloy directly pushes the blockage. The spiral grooves 74 on the surface of the crushing block 72 generate shearing force on the adhering material during lifting. The base provides stable support. When the limit switch 37 moves to the contact limit block 36, it triggers the motor to reverse, so that the connecting plate 6 reciprocates at high frequency, so that the cleaning pins 7 repeatedly clean the screening screen 5. The stubborn dirt is crushed and peeled off without stopping the machine, which effectively solves the problem of screening efficiency reduction caused by screen mesh blockage.

[0024] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vibrating screen structure for a mineral screening machine with self-cleaning function, comprising a base (1), characterized in that, The base (1) is provided with a shock-absorbing frame (2) at the top, a screening hopper (3) is provided at the top of the shock-absorbing frame (2), a vibrator (4) is provided at the bottom of the screening hopper (3), a screening screen (5) is provided inside the screening hopper (3), a connecting plate (6) is provided on the bottom side of the screening screen (5), a cleaning pin (7) is fixedly provided on the top surface of the connecting plate (6), the cleaning pin (7) corresponds to the mesh of the screening screen (5), a sliding groove (31) is provided on both sides of the screening hopper (3), a sliding block (32) is provided inside the sliding groove (31), the sliding block (32) is slidably connected to the sliding groove (31), the sliding block (32) is fixedly connected to the connecting plate (6), and a lifting device (8) is provided on both sides of the screening hopper (3), the lifting device (8) is connected to the sliding block (32).

2. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 1, characterized in that, The lifting device (8) includes a synchronous motor (82), and the bottom of the synchronous motor (82) is connected to a connecting screw (81). The connecting screw (81) is connected to a portion of the sliding block (32) extending out of the sliding groove (31) by a threaded transmission.

3. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 2, characterized in that, An extension rod (33) is provided on one side of the sliding block (32) extending out of the sliding groove (31). Vertical auxiliary holes (34) are opened on both sides of the extension rod (33). A sliding rod (35) is provided inside the auxiliary hole (34). A limit block (36) is provided at the top and bottom of one side of the extension rod (33). A limit switch (37) is provided at the top and bottom of one side of the sliding rod (35).

4. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 1, characterized in that, A controller (11) is provided on one side of the base (1). The controller (11) is electrically connected to the vibrator (4) and the synchronous motor (82). The synchronous motor (82) is electrically connected to the limit switch (37).

5. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 1, characterized in that, The cleaning pin (7) is conical in shape and includes a base (71). A breaking block (72) is provided on the top of the base (71), and a lifting block (73) is provided on the top of the breaking block (72).

6. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 5, characterized in that, The surface of the broken block (72) is provided with spiral grooves (74).

7. The vibrating screen structure of a mineral screening machine with self-cleaning function according to claim 6, characterized in that, The lifting block (73) is made of hard alloy material.

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