Automatic stone screening device

Abstract

The utility model relates to the technical field of screening devices, in particular to an automatic stone screening device which comprises a shell, a primary screening frame, a sliding cavity and a storage box are sequentially arranged in the shell from top to bottom, the storage box is slidably connected relative to the inner wall of the shell, a primary screening sliding rod is arranged between the inner walls of the shell, and the primary screening frame slides along the primary screening sliding rod. A primary screening telescopic electric cylinder is arranged outside the primary screening frame, a plurality of primary screening holes are formed in the inner bottom wall of the primary screening frame in an array mode, a secondary screening sliding rod is arranged between the inner walls of the shell, the sliding cavity slides along the secondary screening sliding rod, a secondary screening telescopic electric cylinder is arranged outside the sliding cavity, and a secondary screening frame is arranged in the sliding cavity in the direction perpendicular to the secondary screening sliding rod in a sliding mode. A plurality of secondary screening holes are formed in the inner bottom wall of the secondary screening frame in an array mode. The primary screening frame and the sliding cavity are connected with the telescopic end of the electric cylinder to achieve sliding screening, the secondary screening frame is in sliding connection with the sliding cavity, the secondary screening frame can slide out of the shell to facilitate stone taking, and a sensor is arranged on the sliding cavity to monitor the stone stacking condition to avoid internal blockage.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of screening devices, in particular to an automatic stone screening device. Background Art

[0002] Asphalt concrete is commonly known as asphalt concrete. Asphalt concrete is a mixture of artificially selected stones with a certain graded composition, such as crushed stone, crushed gravel, stone chips, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. In production and use, it is often necessary to screen the stones to screen out stones of different sizes for subsequent use;

[0003] The stones that pass the primary screening but fail the re-screening will be stored in the re-screening structure. The re-screening structure of the conventional stone screening device is fixed in position. When using the stones, it is necessary to take them out from the inside of the device, which will be hindered by the rest of the internal structure and is time-consuming and laborious. In addition, the screening efficiency will be affected during screening, and some of the stones that have not been re-screened will also accumulate in the re-screening structure. When too much stone accumulates, it will cause the internal blockage device to fail to work. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the utility model is to provide an automated stone screening device, in which sliding screening is achieved by connecting the primary screening frame and the sliding cavity with the telescopic end of the electric cylinder, and the secondary screening frame is slidingly connected to the sliding cavity, so that the secondary screening frame can be slid out of the shell to facilitate the retrieval of stones, and a sensor is provided on the sliding cavity to monitor the stone accumulation situation to avoid internal blockage.

[0005] To achieve the above-mentioned objectives, the utility model adopts the following technical scheme: an automated stone screening device, comprising a shell, wherein a primary screening frame, a sliding cavity and a material storage box are sequentially arranged in the shell from top to bottom, and the material storage box is slidably connected relative to the inner wall of the shell, a primary screening sliding rod is arranged between the inner walls of the shell, the primary screening frame slides along the primary screening sliding rod, a primary screening telescopic electric cylinder is arranged on the outer wall of the primary screening frame, a plurality of primary screening holes are arranged in an array on the bottom wall of the primary screening frame, a secondary screening sliding rod is arranged between the inner walls of the shell, the sliding cavity slides along the secondary screening sliding rod, a secondary screening telescopic electric cylinder is arranged on the outer wall of the sliding cavity, a secondary screening frame is slidably arranged in the sliding cavity along a direction perpendicular to the secondary screening sliding rod, and a plurality of secondary screening holes are arranged in an array on the bottom wall of the secondary screening frame.

[0006] Preferably, the sliding cavity is a hollow square cavity, and a sliding block is fixed at the four corners of the top of the outer side wall of the sliding cavity respectively. The sliding block is an inverted L-shaped structure. The sliding block is located above the re-screening sliding rod and slides along the re-screening sliding rod. The sliding cavity slides in the shell through the setting of the sliding block and the re-screening sliding rod.

[0007] Preferably, the sliding cavity is provided with a guide block on the top of the two inner walls perpendicular to the re-screening sliding rod, and the top of the guide block is arc-shaped. A sensor is embedded on any one of the guide blocks, and the guide block guides the upper stone to slide into the re-screening frame to prevent the stone from accumulating at the connection between the re-screening frame and the sliding cavity.

[0008] Furthermore, the sensor is an optical sensor, and the sensors on the two guide blocks are arranged alternately with each other, and their sensing positions do not overlap, and the sensor is used to monitor the accumulation of stones in the induction re-screening frame.

[0009] Preferably, the sliding cavity is provided with sliding grooves on the two inner side walls perpendicular to the re-screening sliding rod, and sliding protrusions are formed on the two side outer walls of the re-screening frame at positions corresponding to the sliding grooves. The sliding protrusions fit with the sliding grooves, and the re-screening frame is separated from the sliding cavity along the sliding grooves through the setting of the sliding protrusions and the sliding grooves.

[0010] Preferably, the aperture of the primary screening hole is larger than the aperture of the secondary screening hole, and the screening of stones of different sizes can be achieved by setting the aperture.

[0011] Preferably, the motor ends of the primary screening telescopic electric cylinder and the secondary screening telescopic electric cylinder are both fixed on the outer wall of the shell, the telescopic end of the primary screening telescopic electric cylinder penetrates the inner wall of the shell and is fixedly connected to the outer wall of the primary screening frame, and the telescopic end of the secondary screening telescopic electric cylinder penetrates the inner wall of the shell and is fixedly connected to the outer wall of the sliding cavity.

[0012] Preferably, the shell is grooved on one side of the sliding end point of the material storage box and is rotatably provided with a revolving door, and the space formed after the revolving door is opened is used to allow the material storage box and the multi-screen frame to slide outward, and the interior of the shell is opened or closed by the revolving door.

[0013] Furthermore, columns are fixed on the outer walls of both sides of the shell, and a fixing piece is provided on any one of the columns. A fixing rod is inserted between the two fixing pieces, and the fixing rod is tightly against the outer wall of the revolving door, so that the rotation of the revolving door is limited by the fixing rod.

[0014] Preferably, the top of the shell is hollow and the flip cover is provided with a top cover, and the internal space of the primary screening frame is opened or closed by flipping the top cover.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The primary screening frame and the sliding cavity are respectively connected and fixed with the telescopic ends of the primary screening telescopic electric cylinder and the secondary screening telescopic electric cylinder, so that the secondary screening frame in the sliding cavity can cooperate with the primary screening frame for sliding screening. The secondary screening frame slides along the sliding groove to the outside of the sliding cavity and the shell to facilitate the access to stones, and sensors are arranged on both sides of the sliding cavity to monitor the stone accumulation. The sensors control the operation of the primary screening telescopic electric cylinder to avoid blockage caused by excessive accumulation of unscreened stones in the secondary screening frame.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present invention and other related contents, and shall not be considered as limitations of the present invention.

[0019] In the drawings of the specification:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the shell of the utility model;

[0022] Figure 3 It is an exploded schematic diagram of each screening structure of the utility model;

[0023] Figure 4 It is an enlarged view of the structure at A of the utility model;

[0024] Figure 5 It is an enlarged view of the structure at B of the utility model;

[0025] Reference numerals:

[0026] 1. Shell; 2. Primary screening frame; 3. Sliding cavity; 4. Material storage box; 5. Secondary screening frame; 6. Top cover; 7. Column; 8. Revolving door; 9. Primary screening telescopic cylinder; 10. Secondary screening telescopic cylinder; 11. Fixing piece; 12. Fixing rod; 13. Primary screening sliding rod; 14. Secondary screening sliding rod; 15. Primary screening hole; 16. Secondary screening hole; 17. First buffer gasket; 18. Second buffer gasket; 19. Sliding protrusion; 20. Slide groove; 21. Sliding block; 22. Guide block; 23. Sensor. DETAILED DESCRIPTION Example 1

[0027] like Figures 1 to 5As shown, an automatic stone screening device comprises a shell 1, in which a primary screening frame 2, a sliding cavity 3 and a material storage box 4 are arranged in sequence from top to bottom. The material storage box 4 is slidably connected with the inner wall of the shell 1, and a handle is arranged on the side of the material storage box 4 near the sliding end point; a primary screening sliding rod 13 is arranged between the inner walls of the shell 1, and the primary screening frame 2 slides along the primary screening sliding rod 13, and a first buffer gasket 17 is fixed to the bottom of the primary screening frame 2, and the first buffer gasket 17 prevents the primary screening frame 2 from directly contacting with the sliding cavity 3 and causing wear; a primary screening telescopic electric cylinder 9 is fixed on the outer wall of the shell 1, and the telescopic end of the primary screening telescopic electric cylinder 9 penetrates the inner wall of the shell 1 and is fixedly connected with the outer wall of the primary screening frame 2, and the inner bottom wall array of the primary screening frame 2 is arranged A plurality of primary screening holes 15; a secondary screening sliding rod 14 is arranged between the inner walls of the shell 1, the sliding cavity 3 slides along the secondary screening sliding rod 14, a second buffer gasket 17 is fixed to the bottom of the sliding cavity 3, the second buffer gasket 18 prevents the sliding cavity 3 from directly contacting with the material storage box 4 and causing wear; a secondary screening telescopic electric cylinder 10 is fixed to the outer wall of the shell 1, the telescopic end of the secondary screening telescopic electric cylinder 10 penetrates the inner wall of the shell 1 and is fixedly connected to the outer wall of the sliding cavity 3; a secondary screening frame 5 is arranged in the sliding cavity 3 for sliding along a direction perpendicular to the secondary screening sliding rod 14, a handle is arranged on the side of the secondary screening frame 5 near the sliding end point, and a plurality of secondary screening holes 16 are arranged in an array on the inner bottom wall of the secondary screening frame 5; the aperture of the primary screening hole 15 is larger than the aperture of the secondary screening hole 16.

[0028] The sliding cavity 3 is a hollow square cavity, and a sliding block 21 is fixed at each of the four corners of the top of the outer wall of the sliding cavity 3. The sliding block 21 is an inverted L-shaped structure. The sliding block 21 is located above the re-screening sliding rod 14 and slides along the re-screening sliding rod 14. The sliding cavity 3 is perpendicular to the two inner side walls of the re-screening sliding rod 14 and has sliding grooves 20. Sliding protrusions 19 are formed on the outer walls of both sides of the re-screening frame 5 at positions corresponding to the sliding grooves, and the sliding protrusions 19 fit with the sliding grooves 20.

[0029] The sliding cavity 3 is perpendicular to the top of the two inner walls of the re-screening sliding rod 14, and a guide block 22 is fixed respectively. The upper end of the guide block 22 forms an arc portion, and the lower end forms a square portion. The square portion of the guide block 22 is tightly against the top of the re-screening frame. A sensor 23 is embedded in the square portion of the two guide blocks 22. The sensor 23 is an optical sensor. The two sensors 23 are staggered and their sensing positions do not overlap. The sensor 23 is electrically connected to the primary screening telescopic electric cylinder 9 to control the sliding screening of the primary screening frame 2.

[0030] The shell 1 is grooved and rotatably provided with a revolving door 8 on one side of the sliding end point of the material storage box 4. The space formed after the revolving door 8 is opened is used to allow the material storage box 4 and the multi-screen frame 5 to slide outward. Pillars 7 are fixed to the outer walls on both sides of the shell 1. Fixing parts 11 are provided on the two pillars 7. A fixing rod 12 is inserted between the two fixing parts 11. The fixing rod 12 is tightly against the outer wall of the revolving door 8 to limit the rotation of the revolving door 8.

[0031] The top of the shell 1 is hollow and the flip cover is provided with a top cover 6, which, when closed, is tightly pressed against the top of the primary screening frame 2 to prevent stones from flying out of the top of the primary screening frame 2 when the primary screening frame 2 slides for screening.

[0032] The implementation principle of Example 1 of the present application is as follows: when the device is used, first open the top cover 6 to pour the stones into the primary screening frame 2, then close the top cover 6 and start the primary screening telescopic electric cylinder 9 and the secondary screening telescopic electric cylinder 10, and the primary screening frame 2 and the secondary screening frame 5 slide back and forth along the sliding rod driven by the electric cylinder, and after screening through the primary screening holes 15 and the secondary screening holes 16, large stones, medium stones and small stones are screened out in the primary screening frame 2, the secondary screening frame 5 and the storage box 4 respectively. When the unscreened stones in the secondary screening frame 5 are stacked to reach the sensing height of the two sensors 23, the sensor 23 controls the primary screening telescopic electric cylinder 9 to suspend work until the secondary screening frame 5 is fully screened. After the screening is completed, pull out the fixed rod 12 and open the revolving door 8, pull the handle to pull out the storage box 4 and the secondary screening frame 5 to take out the medium stones and small stones, and at the same time open the top cover 6 to take out the large stones from the top of the primary screening frame 2.

[0033] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the basic features of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An automated stone screening device, comprising a housing (1), characterized in that: The housing (1) is provided with a primary screening frame (2), a sliding cavity (3) and a material storage box (4) in sequence from top to bottom, and the material storage box (4) is slidably connected relative to the inner wall of the housing (1); A primary screening sliding rod (13) is arranged between the inner walls of the housing (1), the primary screening frame (2) slides along the primary screening sliding rod (13), a primary screening telescopic electric cylinder (9) is arranged on the outer wall of the primary screening frame (2), and a plurality of primary screening holes (15) are arranged in an array on the inner bottom wall of the primary screening frame (2); A rescreening sliding rod (14) is arranged between the inner walls of the shell (1), the sliding cavity (3) slides along the rescreening sliding rod (14), a rescreening telescopic electric cylinder (10) is arranged on the outer wall of the sliding cavity (3), a rescreening frame (5) is arranged in the sliding cavity (3) to slide in a direction perpendicular to the rescreening sliding rod (14), and a plurality of rescreening holes (16) are arranged in an array on the inner bottom wall of the rescreening frame (5).

2. The automatic stone screening device according to claim 1, characterized in that: The sliding cavity (3) is a hollow square cavity. A sliding block (21) is fixed to each of the four corners of the top of the outer wall of the sliding cavity (3). The sliding block (21) is an inverted L-shaped structure. The sliding block (21) is located above the re-screening sliding rod (14) and slides along the re-screening sliding rod (14).

3. The automatic stone screening device according to claim 1, characterized in that: The sliding cavity (3) is provided with a guide block (22) at the top of the two inner side walls perpendicular to the re-screening sliding rod (14), respectively. The top of the guide block (22) is arc-shaped, and a sensor (23) is embedded in any one of the guide blocks (22).

4. The automatic stone screening device according to claim 3 is characterized in that: The sensor (23) is an optical sensor, and the sensors (23) on the two guide blocks (22) are arranged in an interlaced manner, and their sensing positions do not overlap.

5. The automatic stone screening device according to claim 1, characterized in that: The sliding cavity (3) has sliding grooves (20) on its two inner side walls perpendicular to the re-screening sliding rod (14), and sliding protrusions (19) are formed on the outer walls on both sides of the re-screening frame (5) at positions corresponding to the sliding grooves, and the sliding protrusions (19) fit into the sliding grooves (20).

6. The automatic stone screening device according to claim 1, characterized in that: The aperture of the primary screening hole (15) is larger than the aperture of the secondary screening hole (16).

7. The automatic stone screening device according to claim 1, characterized in that: The motor ends of the primary screening telescopic electric cylinder (9) and the secondary screening telescopic electric cylinder (10) are both fixed on the outer wall of the housing (1); the telescopic end of the primary screening telescopic electric cylinder (9) penetrates the inner wall of the housing (1) and is fixedly connected to the outer wall of the primary screening frame (2); and the telescopic end of the secondary screening telescopic electric cylinder (10) penetrates the inner wall of the housing (1) and is fixedly connected to the outer wall of the sliding cavity (3).

8. The automatic stone screening device according to claim 1, characterized in that: The housing (1) is slotted at one side of the sliding end point of the material storage box (4) and is rotatably provided with a revolving door (8); a space formed when the revolving door (8) is opened is used to allow the material storage box (4) and the multi-screen frame (5) to slide outwards.

9. The automatic stone screening device according to claim 8, characterized in that: Vertical columns (7) are fixed on the outer walls of both sides of the shell (1), a fixing piece (11) is provided on any one of the vertical columns (7), a fixing rod (12) is inserted between the two fixing pieces (11), and the fixing rod (12) is tightly against the outer wall of the revolving door (8).

10. The automatic stone screening device according to claim 1, characterized in that: The top end of the housing (1) is hollow and the flip cover is provided with a top cover (6).

Images