Vermiculite screening device

Abstract

The utility model discloses a vermiculite screening device which comprises a pipe body, a rubber ring is installed in the pipe body, a filter screen is installed in an inner ring of the rubber ring, the filter screen and the rubber ring are combined to form a funnel-shaped screening cavity, a positioning ring is installed on the bottom face of the filter screen, and a bottom plate is arranged at the position, below the positioning ring, of the pipe body. The top surface of the bottom plate is provided with a plurality of contact pins opposite to mesh holes in the filter screen, the top surface of the pipe body is provided with a top cover, the center of the top cover is provided with a shaft hole, a shaft rod is arranged in the shaft hole, one end of the shaft rod is arranged on the filter screen, the other end of the shaft rod extends to the outside and is provided with a pressing plate, and one side of the pressing plate is provided with an extrusion mechanism for pressing the shaft rod and the filter screen downwards. The vermiculite screening device is simple in structure, the filter screen can be greatly swung up and down through the elasticity of the rubber ring, adhered vermiculite can be effectively thrown out, and in the descending process of the filter screen, the inserting needles can be inserted into the meshes of the filter screen to open the blocked meshes, so that the screening efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vermiculite processing, in particular to a vermiculite screening device. Background Art

[0002] Vermiculite is a natural, inorganic, non-toxic mineral that expands under high temperature. After high-temperature roasting, the volume of raw vermiculite flakes can rapidly expand several to dozens of times. The expanded vermiculite is called expanded vermiculite. Expanded vermiculite is widely used in insulation materials, fireproof materials, seedlings, flower planting, tree planting, friction materials, sealing materials, electrical insulation materials, coatings, plates, paints, rubber, refractory materials, hard water softeners, smelting, construction, shipbuilding, chemical and other industries.

[0003] Most of the existing vermiculite screening devices adopt screen vibration screening, but vermiculite is light in weight, and the effect of vibration screening is poor. The lighter vermiculite is easy to adhere to the screen, which makes it inconvenient to screen out the lighter vermiculite. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a vermiculite screening device, which can remove adhered vermiculite and impurities blocked by the filter screen through a large-scale up and down swing, thereby ensuring the screening efficiency and solving the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical scheme: a vermiculite screening device comprises a tube body, a rubber ring is installed inside the tube body, a filter screen is installed in the inner ring of the rubber ring, the filter screen and the rubber ring are combined to form a funnel-shaped screening chamber, a positioning ring is installed on the bottom surface of the filter screen, a bottom plate is provided below the tube body located below the positioning ring, a plurality of pins corresponding to the mesh holes on the filter screen are installed on the top surface of the bottom plate, a top cover is installed on the top surface of the tube body, an axial hole is provided at the center of the top cover, a shaft rod is provided in the shaft hole, one end of the shaft rod is installed on the filter screen, and the other end extends to the outside, and a pressing plate is installed, and a pressing mechanism for pressing down the shaft rod and the filter screen is provided on one side of the pressing plate.

[0006] As a preferred technical solution, the extrusion mechanism includes a reduction motor, a pressure rod and a compression spring. The pressure rod is installed on the rotating shaft of the motor, one end of the pressure rod extends to the top of the pressure plate, a fixed seat is installed between the motor and the top cover, the compression spring is sleeved on the shaft, one end of the compression spring is installed on the bottom surface of the pressure plate, and the other end is installed on the top surface of the cover.

[0007] As a preferred technical solution, a plurality of fixing frames are installed between the bottom plate and the tube body, and the fixing frames are all arranged in an "L"-shaped structure, and the inner diameter of the bottom plate matches the inner diameter of the positioning ring.

[0008] As a preferred technical solution, a feeding hole for adding vermiculite is provided on the top cover, and a sealing plug is threadedly connected in the feeding hole.

[0009] As a preferred technical solution, the rubber ring is made of elastic rubber material.

[0010] As a preferred technical solution, a positioning block is protruded on the inner wall surface of the shaft hole, and a positioning groove is vertically provided on the outer wall surface of the shaft rod. The positioning block is slidably set in the positioning groove, and the cross-sections of the positioning block and the positioning groove are both arranged in a trapezoidal structure.

[0011] As a preferred technical solution, a vibrator is installed in the middle of the shaft.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the filter screen and the rubber ring are pushed downward by the extrusion mechanism to put the rubber ring in a tensioned state; after the pressure rod is removed from above the pressure plate, the filter screen can be swung up and down significantly by the elasticity of the rubber ring, and the adhering vermiculite can be effectively thrown out; and in the process of the filter screen descending, the pin can be inserted into the mesh of the filter screen, and the blocked mesh can be opened to ensure the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a bottom view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model after the top cover is removed.

[0017] Among them, 1. tube body; 2. top cover; 3. pressure plate; 4. compression spring; 5. feeding hole; 6. pressure rod; 7. motor; 8. rubber ring; 9. filter screen; 10. positioning ring; 11. fixing frame; 12. bottom plate; 13. pin; 14. shaft rod. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a vermiculite screening device of the utility model comprises a tube body 1, a rubber ring 8 is installed inside the tube body 1, a filter screen 9 is installed in the inner ring of the rubber ring 8, the filter screen 9 and the rubber ring 8 are combined to form a funnel-shaped screening chamber, a positioning ring 10 is installed on the bottom surface of the filter screen 9, a bottom plate 12 is provided on the tube body 1 below the positioning ring 10, a plurality of pins 13 opposite to the mesh holes on the filter screen 9 are installed on the top surface of the bottom plate 12, a top cover 2 is installed on the top surface of the tube body 1, an axial hole is provided at the center of the top cover 2, a shaft rod 14 is provided in the shaft hole, one end of the shaft rod 14 is installed on the filter screen 9, and the other end extends to the outside, and a pressing plate 3 is installed, and a pressing plate 3 is provided on one side of the pressing plate 3. A squeezing mechanism for pressing down the shaft rod 14 and the filter screen 9 is provided.

[0022] In this embodiment, the extrusion mechanism includes a reduction motor 7, a pressure rod 6 and a compression spring 4. The pressure rod 6 is installed on the rotating shaft of the motor 7. One end of the pressure rod 6 extends to the top of the pressure plate 3. A fixed seat is installed between the motor 7 and the top cover 2. The compression spring 4 is sleeved on the shaft 14. One end of the compression spring 4 is installed on the bottom surface of the pressure plate 3, and the other end is installed on the top surface of the cover.

[0023] In this embodiment, a plurality of fixing frames 11 are installed between the bottom plate 12 and the tube body 1 . The fixing frames 11 are all arranged in an “L”-shaped structure. The inner diameter of the bottom plate 12 matches the inner diameter of the positioning ring 10 .

[0024] In this embodiment, a feeding hole 5 for adding vermiculite is provided on the top cover 2, and a sealing plug is threadedly connected in the feeding hole 5. When the filter screen is moved up and down significantly, the sealing plug can be installed in the feeding hole to prevent the vermiculite inside from flying out of the feeding hole.

[0025] In this embodiment, the rubber ring 8 is made of elastic rubber material, so that the rubber ring has good elasticity.

[0026] In this embodiment, a positioning block is protruded on the inner wall surface of the shaft hole, and a positioning groove is vertically provided on the outer wall surface of the shaft rod 14. The positioning block is slidably set in the positioning groove. The cross-sections of the positioning block and the positioning groove are both set in a trapezoidal structure, so that the shaft rod can only move up and down along the positioning block, avoiding the rotation of the shaft rod and the filter screen, so that the mesh holes on the filter screen can only be set directly opposite to the pin to ensure that the pin can be smoothly inserted into the mesh holes.

[0027] In this embodiment, a vibrator is installed in the middle of the shaft 14 to enable vibration screening operation.

[0028] When in use, vermiculite can be poured into the screening chamber through the feeding hopper, and the vibrator is started. The vibration generated by the vibrator can act on the filter screen through the shaft rod, so that the vermiculite above the filter screen can be screened out from the filter screen. After screening for a period of time, the motor can be started. The start of the motor drives the pressure rod, and the pressure rod rotating counterclockwise can press down the pressure plate. The movement of the pressure plate drives the shaft rod and the filter screen. In the process of the filter screen descending, the rubber ring can be stretched. After the pressure rod is removed from the pressure plate, the filter screen can be quickly lifted up by the elasticity of the rubber ring, and the filter screen can be swung up and down along the shaft hole to a large extent, effectively throwing out the adhered vermiculite, and in the process of the filter screen descending, the pin can be inserted into the mesh of the filter screen to open the blocked mesh to ensure the screening efficiency.

[0029] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A vermiculite screening device, characterized in that: The invention comprises a tube body (1), wherein a rubber ring (8) is installed inside the tube body (1), a filter screen (9) is installed in the inner ring of the rubber ring (8), the filter screen (9) and the rubber ring (8) are combined to form a funnel-shaped screening chamber, a positioning ring (10) is installed on the bottom surface of the filter screen (9), a bottom plate (12) is provided on the tube body (1) below the positioning ring (10), a plurality of pins (13) are installed on the top surface of the bottom plate (12) and are opposite to the mesh holes on the filter screen (9), a top cover (2) is installed on the top surface of the tube body (1), an axial hole is provided at the center of the top cover (2), a shaft rod (14) is provided in the shaft hole, one end of the shaft rod (14) is installed on the filter screen (9), and the other end extends to the outside, and a pressing plate (3) is installed, and a pressing mechanism for pressing down the shaft rod (14) and the filter screen (9) is provided on one side of the pressing plate (3).

2. The vermiculite screening device according to claim 1, characterized in that: The extrusion mechanism comprises a reduction motor (7), a pressure rod (6) and a compression spring (4), wherein the pressure rod (6) is mounted on the rotating shaft of the motor (7), one end of the pressure rod (6) extends above the pressure plate (3), a fixing seat is installed between the motor (7) and the top cover (2), the compression spring (4) is sleeved on the shaft (14), one end of the compression spring (4) is mounted on the bottom surface of the pressure plate (3), and the other end is mounted on the top surface of the cover.

3. The vermiculite screening device according to claim 1, characterized in that: A plurality of fixing frames (11) are installed between the bottom plate (12) and the tube body (1), and the fixing frames (11) are all arranged in an "L"-shaped structure. The inner diameter of the bottom plate (12) matches the inner diameter of the positioning ring (10).

4. The vermiculite screening device according to claim 1, characterized in that: The top cover (2) is provided with a feeding hole (5) for adding vermiculite, and a sealing plug is threadedly connected in the feeding hole (5).

5. The vermiculite screening device according to claim 1, characterized in that: The rubber ring (8) is made of elastic rubber material.

6. The vermiculite screening device according to claim 1, characterized in that: A positioning block is protruded on the inner wall surface of the shaft hole, and a positioning groove is vertically arranged on the outer wall surface of the shaft rod (14). The positioning block is slidably arranged in the positioning groove, and the cross sections of the positioning block and the positioning groove are both arranged in a trapezoidal structure.

7. The vermiculite screening device according to claim 1, characterized in that: A vibrator is installed in the middle of the shaft (14).

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