Grain stoning machine

Abstract

The utility model discloses a grain stoning machine, which belongs to the technical field of grain stoning and comprises a box body for stoning grains, a top cover arranged at the top end of the box body and two vertical plates arranged at the top end of the top cover. A collecting box is installed on the inner bottom wall of the box body, two vertical frames are welded to the two sides of the collecting box correspondingly, first telescopic rods are installed on the inner bottom walls of three of the vertical frames correspondingly, and a moving plate is installed on the moving part of the first telescopic rod, close to the vertical plate; the moving parts, away from the vertical plates, of the other two first telescopic rods are attached to the inner bottom walls of the moving plates, ball bearings are fixed to the vertical side faces of the three moving plates, a screen used for removing stones from grains is arranged between the ball bearings on the two sides, a connecting frame is installed on the inner bottom wall of the collecting box, and a motor is installed on the vertical side face of the connecting frame. According to the grain stoning machine, stone and grain can be separated conveniently, manpower is saved, the screen does not need to be detached for cleaning, the broken stone blocked in the screen is automatically cleaned, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain stone removal, and particularly relates to a grain stone remover. Background Technique

[0002] Grain is the main source of calories required by the human body. The main grains in the world are rice, wheat, rye, sorghum, corn and millet. Grain processing refers to the business activities of converting raw grains into semi-finished grains, finished grains, or converting semi-finished grains into finished grains through processing. Before grain processing, it is usually necessary to screen the grain to remove impurities inside the grain.

[0003] When the existing grain stone remover removes stones from rice, it uses a sieve mesh to screen out smaller-sized gravel. However, the gravel is easily stuck in the mesh holes of the sieve mesh, causing blockage, and it is necessary to manually disassemble and clean the sieve mesh, which affects the screening efficiency.

[0004] For example (authorized announcement number CN211246717U) a grain stone remover stone recycling device. The setting of the stirring shaft and the stirring blades can stir the grain. Through the first sieve stone mesh and the second sieve stone mesh, some small miscellaneous stones in the grain can be screened out. When the vibrator is started, the vibrator vibrates to drive the entire miscellaneous stone collection chamber to vibrate, so that the inclined sieve plate screens out large miscellaneous stones and discharges them through the stone discharge pipe, effectively removing the miscellaneous stones in the grain and improving the quality of the grain. This device has this problem: during use, it is impossible to clean the gravel stuck in the sieve mesh, and long-term accumulation affects the use efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a grain stone remover to solve the problems put forward in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A grain stone remover, comprising: a box body for removing stones from grain, a top cover arranged at the top end of the box body, and two vertical plates arranged at the top end of the top cover; a collection box is installed on the inner bottom wall of the box body, and two vertical frames are welded on both sides of the collection box. The inner bottom walls of three of the vertical frames are all installed with first telescopic rods. The moving part of one of the first telescopic rods close to the vertical plate is installed with a moving plate, and the moving parts of the other two first telescopic rods far from the vertical plate are attached to the inner bottom wall of the moving plate. Ball bearings are fixed on the vertical sides of the three moving plates, and a sieve mesh for removing stones from grain is arranged between the two side ball bearings. A connecting frame is installed on the inner bottom wall of the collection box, and a motor is installed on the vertical side of the connecting frame;

[0007] The driving end of the motor is installed with a lead screw, the outer circumference of the lead screw is sleeved with a slider through a ball nut, the vertical side of the slider is installed with a second rotating motor, and the driving end of the second rotating motor is installed with a rotating roller, and a brush is adhered to the outer circumference of the rotating roller.

[0008] In a further embodiment, discs are welded to the inner rings of the three ball bearings, connecting plates are welded to the vertical sides of the discs on both sides, a plurality of vibrators are installed on the vertical sides of the two connecting plates, a fixing bar is installed between the two connecting plates, and the sieve is installed between the two connecting plates.

[0009] In a further embodiment, a feed frame is installed between the two vertical plates by bolts, and a feed hopper communicating with the top cover is welded to the bottom end of the feed frame.

[0010] In a further embodiment, a first rotating motor is installed on the vertical side of the feed frame, a rotating rod is installed at the driving end of the first rotating motor, and a partition plate closely attached to the inner wall of the feed frame is sleeved on the outer periphery of the rotating rod.

[0011] In a further embodiment, a connection box is fixed to the top end of the top cover, and an exhaust fan for sucking dust and impurities in the grain is installed on the vertical side of the connection box.

[0012] In a further embodiment, a fixed box communicating with the top cover is installed on the other side of the connection box, and an extension frame is fixed to the bottom end of the fixed box.

[0013] In a further embodiment, a second telescopic rod is installed at the top end of the fixed box, and a scraping frame closely attached to the inner wall of the extension frame is installed at the moving part of the second telescopic rod.

[0014] In a further embodiment, four support plates are fixed to the bottom end of the box body, a stone discharge hopper is installed on the vertical side of the box body close to the vertical plate, and a discharge hopper is fixed to the other side of the box body.

[0015] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0016] During the use of this grain stone remover, the first telescopic rods on the side close to the vertical plate expand and contract, lifting the moving plate, which drives the sieve to move synchronously upward through the ball bearings on the side. Subsequently, the two first telescopic rods on the other side contract, tilting the sieve at a certain angle. Then, feeding is carried out, and the vibrators generate vibrations for reciprocating vibration movement. The stones are heavier than the saturated grains, and the stones fall to the bottom of the piled grains. Through the reciprocating vibration of the sieve surface, some stones crawl towards the stone discharge hopper, and some smaller-sized stones are sieved out with the sieve and fall into the collection box, while the grains are discharged from the discharge hopper, thus facilitating the separation of stones and grains.

[0017] Subsequently, after the screening is completed, the first telescopic rod expands and contracts to level the screen. The motor installed on the vertical side of the collection box controls the displacement of the slider on the outer circumference of the lead screw, causing the second rotating motor and the rotating roller to move. The second rotating motor controls the rotation of the rotating roller and the brush on its outer circumference. The brush fits against the screen to push out the crushed stones in the screen. After the pushing out, the first telescopic rod is driven again to tilt the screen, causing the crushed stones on the screen to slide off or fall into the collection box through the screen. This operation can be repeated, saving manpower. There is no need to disassemble the screen for cleaning, and the blocked crushed stones in the screen are automatically cleaned, improving the screening efficiency. This grain stone remover is convenient for separating stones and grains, saves manpower, does not require disassembling the screen for cleaning, automatically cleans the blocked crushed stones in the screen, and improves the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is of the present invention Figure 1 structural schematic diagram without the top cover;

[0021] Figure 3 is the internal structure of the box body of the present invention Figure 3 structural schematic diagram without the screen;

[0022] Figure 4 is a schematic structural diagram of the extension frame of the present invention;

[0023] Figure 5 is a schematic structural diagram of the present invention.

[0024] Description of the reference numerals:

[0025] In the figure: 1. Top cover; 2. Box body; 3. Discharge hopper; 4. Vertical plate; 5. Feed hopper; 6. Feed frame; 7. Partition board; 8. First rotating motor; 9. Connection box; 10. Exhaust fan; 11. Stone discharge hopper; 12. Support plate; 13. Connection plate; 14. Fixed strip; 15. Vertical frame; 16. Collection box; 17. Motor; 18. Connection frame; 19. Brush; 20. Slide block; 21. Second rotating motor; 22. Disc; 23. Sieve mesh; 24. Vibrator; 25. Moving plate; 26. Ball bearing; 28. First telescopic rod; 29. Second telescopic rod; 30. Extension frame; 31. Fixed box; 32. Scraping frame. Detailed implementation mode

[0026] In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present utility model, some well-known technical features in the art are not described.

[0027] Unless otherwise defined, the directions such as up, down, left, right, front, back, inside and outside involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the figure shown by the present utility model, and are hereby explained together.

[0028] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., subject to actual needs. Embodiment

[0029] Please refer to Figures 1 to 5, the box body 2 and the top cover 1 arranged at the top end of the box body 2 form an external protective shell of the device. Two vertical plates 3 are fixed to the top end of the box body 2. The inner bottom wall of the box body 2 is installed with a collection box 16 through bolts. Two vertical frames 15 are welded on both sides of the collection box 16. The inner bottom walls of three of the vertical frames 15 are all installed with first telescopic rods 28. The moving part of one of the first telescopic rods 28 close to the vertical plate 4 is installed with a moving plate 25. The moving parts of the other two first telescopic rods 28 far from the vertical plate 4 are attached to the inner bottom wall of the moving plate 25. Ball bearings 26 are fixed to the vertical sides of the three moving plates 25. A screen 23 for removing stones from grains is arranged between the two side ball bearings 26. A connecting frame 18 is installed on the inner bottom wall of the collection box 16. A lead screw is inserted into the vertical inner wall of the connecting frame 18 through a bearing. A motor 17 for providing power to the lead screw is installed on the vertical side of the connecting frame 18 through bolts. A slider 20 is sleeved on the outer circumference of the lead screw through a ball nut. After the screening is completed, the first telescopic rod 28 expands and contracts to make the screen 23 level. The motor 17 arranged on the vertical side of the collection box 16 controls the displacement of the slider 20 on the outer circumference of the lead screw, so that the second rotating motor 21 and the rotating roller are displaced. The second rotating motor 21 controls the rotation of the rotating roller and the brush 19 on the outer circumference. The brush 19 is attached to the screen 23 to push out the crushed stones in the screen 23. After the pushing out, the first telescopic rod 28 is driven again to make the screen 23 tilt, so that the crushed stones on the screen 23 slide off or fall into the collection box 16 through the screen 23.

[0030] It can be operated repeatedly, saving manpower. There is no need to disassemble the screen for cleaning. The crushed stones blocked in the screen 23 are automatically cleaned, improving the screening efficiency. A second rotating motor 21 is installed on the vertical side of the slider 20. The driving end of the second rotating motor 21 is installed with a rotating roller. The brush 19 is bonded to the outer circumference of the rotating roller. A plurality of vibrators 24 are installed on the vertical sides of the two connecting plates 13. Disks 22 are welded to the inner rings of the three ball bearings 26. Connecting plates 13 are welded to the vertical sides of the two side disks 22. A fixing strip 14 is installed between the two connecting plates 13, and the screen 23 is installed between the two connecting plates 13. The mesh size of the screen 23 is smaller than the saturated grain particles and can be changed according to actual needs. The brush 19 can be a hard plastic brush 19 or a brush 19 with burrs that can be inserted into the screen 23, which can be changed according to actual needs.

[0031] A feed frame 6 is installed between two vertical plates 4 by bolts. A feed hopper 5 communicating with the top cover 1 is welded to the bottom end of the feed frame 6. A first rotating motor 8 is installed on the vertical side of the feed frame 6. A rotating rod is installed at the driving end of the first rotating motor 8. A partition plate 7 closely attached to the inner wall of the feed frame 6 is sleeved on the outer periphery of the rotating rod. A connection box 9 is fixed to the top end of the top cover 1. An exhaust fan 10 for sucking dust and impurities in the grain is installed on the vertical side of the connection box 9. Another side of the connection box 9 is provided with a fixed box 31 communicating with the top cover 1. An extension frame 30 is fixed to the bottom end of the fixed box 31. A second telescopic rod 29 is installed at the top end of the fixed box 31. The exhaust fan 10 sucks air. A filter screen is arranged on the inner wall of the connection box 9. The second telescopic rod 29 contracts, which can drive a scraping frame 32 to scrape the impurities and dust attached to the inner wall of the extension frame 30 into the scraping frame 32 for cleaning and collection. A scraping frame 32 closely attached to the inner wall of the extension frame 30 is installed on the moving part of the second telescopic rod 29. Four support plates 12 are fixed to the bottom end of the box body 2. A stone discharging hopper 11 is installed on the vertical side of the box body 2 close to the vertical plate 4. A discharge hopper 3 is fixed to the other side of the box body 2.

[0032] The first rotating motor 8, the exhaust fan 10, the first motor 17, the second rotating motor 21, the first telescopic rod 28 and the second telescopic rod 29 are all conventional instruments. Their working principles, dimensions and models are irrelevant to the functions of this application, so no more description will be given. 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 of those skilled in the art. The provision of power also belongs to the common knowledge in the art. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0033] Working principle

[0034] For this grain stone removing machine, the first telescopic rods 28 on one side close to the vertical plate 4 extend and retract to lift the moving plate 25, so that it drives the sieve mesh to move synchronously upward through the ball bearing 26 on the side. The two first telescopic rods 28 on the other side contract to make the sieve mesh 23 tilt at a certain angle. Then feeding is carried out. The vibrator 24 generates vibration and performs reciprocating vibration motion. Stones are heavier than saturated grains. The stones fall to the bottom of the piled grains. Through the reciprocating vibration of the sieve surface, some stones climb towards the stone discharging hopper, and some stones with smaller sizes are screened out through the sieve mesh 23 and fall into the collection box 16. The grains are discharged from the discharge hopper 5 to separate the stones and the grains.

[0035] After the screening is completed, the first telescopic rod 28 expands and contracts to level the screen 23. The motor 17 installed on the vertical side of the collection box 16 controls the displacement of the slider 20 on the outer circumference of the lead screw, causing the second rotary motor 21 and the rotary roller to move. The second rotary motor 21 controls the rotation of the rotary roller and the brush 19 on its outer circumference. The brush 19 presses against the screen 23 to push out the crushed stones in the screen 23. After the pushing out, the first telescopic rod 28 is driven again to tilt the screen 23, causing the crushed stones on the screen 23 to slide off or fall into the collection box 16 through the screen 23.

[0036] It should be noted that in this text, relative terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0037] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain stone removing machine, comprising: A box body (2) for removing stones from grain, a top cover (1) arranged at the top of the box body (2), and two vertical plates (4) arranged at the top of the top cover; the characteristics are: a collecting box (16) is installed on the inner bottom wall of the box body (2), two vertical frames (15) are welded on both sides of the collecting box (16), wherein the inner bottom walls of three vertical frames (15) are installed with first telescopic rods (28), a moving part of one of the first telescopic rods (28) close to the vertical plate (4) is installed with a moving plate (25), and the moving parts of the other two first telescopic rods (28) away from the vertical plate (4) are attached to the inner bottom wall of the moving plate (25), ball bearings (26) are fixed on the vertical side surfaces of the three moving plates (25), and a screen (23) for removing stones from grain is provided between the ball bearings (26) on both sides, and a connecting frame (18) is installed on the inner bottom wall of the collecting box (16), and a motor (17) is installed on the vertical side surface of the connecting frame (18); A screw is mounted on the driving end of the motor (17), a slider (20) is sleeved on the outer circumference of the screw via a ball nut, a second rotary motor (21) is mounted on the vertical side of the slider (20), a rotary roller is mounted on the driving end of the second rotary motor (21), and a brush (19) is bonded to the outer circumference of the rotary roller.

2. A grain stone removing machine according to claim 1, characterized in that: The inner rings of the three ball bearings (26) are welded with discs (22), the vertical sides of the discs (22) on both sides are welded with connecting plates (13), the vertical sides of the two connecting plates (13) are installed with a plurality of vibrators (24), a fixing bar (14) is installed between the two connecting plates (13), and the screen (23) is installed between the two connecting plates (13).

3. The grain stone removing machine according to claim 1, characterized in that: A feed frame (6) is installed between the two vertical plates (4) by means of bolts, and a feed hopper (5) communicating with the top cover (1) is welded to the bottom end of the feed frame (6).

4. A grain stone removing machine according to claim 3, characterized in that: A first rotating motor (8) is mounted on the vertical side surface of the feed frame (6), a rotating rod is mounted on the driving end of the first rotating motor (8), and a partition plate (7) is sleeved on the outer periphery of the rotating rod and is in close contact with the inner wall of the feed frame (6).

5. The grain stone removing machine according to claim 1, characterized in that: A connection box (9) is fixed to the top of the top cover (1), and an exhaust fan (10) for sucking dust and impurities from grain is installed on the vertical side of the connection box (9).

6. A grain stone removing machine according to claim 5, characterized in that: A fixing box (31) communicating with the top cover (1) is installed on the other side of the connection box (9), and an extension frame (30) is fixed to the bottom end of the fixing box (31).

7. A grain stone removing machine according to claim 6, characterized in that: A second telescopic rod (29) is installed at the top end of the fixed box (31), and a scraping frame (32) that is in close contact with the inner wall of the extension frame (30) is installed at the movable portion of the second telescopic rod (29).

8. The grain stone removing machine according to claim 1, characterized in that: Four support plates (12) are fixed to the bottom end of the box body (2), a stone discharge hopper (11) is installed on the vertical side of the box body (2) close to the vertical plate (4), and a discharge hopper (3) for discharging grain is fixed on the other side of the box body (2).

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