Rotary screening machine for sand removal of automobile accessory castings

Abstract

The rotary screening machine comprises a bottom plate, a plurality of telescopic rods are arranged on the surface of the top of the bottom plate and distributed on the surface of the top of the bottom plate in a matrix mode, and a screening basket is arranged on the surface of the top of each telescopic rod. Springs are arranged on the telescopic rods and located between the bottom surface of the screen basket and the top surface of the bottom plate, two fixing plates are arranged on the top surface of the bottom plate and located below the screen basket, rotating shafts are symmetrically and rotationally arranged between the two fixing plates, and one ends of the rotating shafts penetrate through the side walls of the fixing plates and are provided with first motors. A plurality of cams are evenly arranged on the surface, close to the bottom of the screen basket, of the rotary shaft, a plurality of first partition plates are evenly arranged in the screen basket, and a plurality of strip-shaped plates are arranged at the positions, above the first partition plates, in the screen basket. And the sieve plate is convenient to disassemble and assemble, and cleaning and maintenance are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to a rotary screening machine for removing sand from auto parts castings. Background Art

[0002] Casting is a method of pouring liquid metal into a casting cavity that is adapted to the shape of the part, and obtaining a part or blank after it cools and solidifies. The cast material is mostly metal that was originally solid but heated to liquid. The casting material can be sand, metal or ceramic. Since sand casting materials are cheap and easy to obtain, the casting mold is simple to manufacture, and it can adapt to both single-piece and batch production of castings. Sand is a commonly used casting material in the casting process. The casting needs to be sanded during the sand casting process. After the part is cast and cooled to a certain temperature, the mold is broken to separate the molding sand from the casting. The molding sand after casting needs to be recycled and reused. First, the molding sand wrapped on the casting needs to be shaken off by a sand-falling machine, and then the sand is screened through a sieve plate.

[0003] The existing public technology is disclosed in CN218836056U, which discloses a sand-falling machine, comprising a base, a frame, a screen plate (12) and a grid plate. A collecting bucket is provided at the bottom of the frame, and vibration motors are provided on both sides of the collecting bucket. The frame is movably mounted on the base through a group of springs, the screen plate is fixed in the frame, and the grid plate is movably mounted in the frame through a group of springs and is located above the screen plate. The utility model has the advantages that the screen plate and the grid plate of the sand-falling machine are both movable, and the grid plate vibrates to vibrate the molding sand of the upper casting. When the grid plate follows the vibration of the screen plate, the frequencies of the two are different, and the molding sand falls on the screen plate in the middle of each grid and collides in multiple directions, thereby improving the sand-falling efficiency.

[0004] Although the above patent can improve the sand falling efficiency, there are still some shortcomings in its use. First, the volumes of different castings are usually the same, and the size of the grid plate used in the patent is fixed, and it cannot be flexibly adjusted according to different castings, which limits the applicability of the device to a certain extent. Secondly, the screen plate used in the patent is fixed, and it is not convenient to clean and maintain the screen plate after long-term use. It is not convenient to use. At present, no effective solution has been proposed for the problems in the relevant technology. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a rotary screening machine for removing sand from auto parts castings, which has the advantages of being able to flexibly adjust the size of the space in the screen basket, being more applicable, and being easy to disassemble and assemble the screen plate, making cleaning and maintenance more convenient, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages, the specific technical solutions adopted by the utility model are as follows:

[0009] A rotary screening machine for removing sand from auto parts castings comprises a bottom plate, a telescopic rod is arranged on the top surface of the bottom plate, a plurality of telescopic rods are arranged and distributed in a matrix on the top surface of the bottom plate, a screen basket is arranged on the top surface of the telescopic rod, a spring is arranged on the telescopic rod between the bottom surface of the screen basket and the top surface of the bottom plate, a fixed plate is arranged on the top surface of the bottom plate below the screen basket, there are two fixed plates and a rotating shaft is symmetrically arranged between the two fixed plates, a first motor is arranged at one end of the rotating shaft passing through the side wall of the fixed plate, a plurality of cams are evenly arranged on the rotating shaft close to the bottom surface of the screen basket, a plurality of first partitions are evenly arranged in the screen basket, a plurality of strip plates are arranged above the first partition in the screen basket, a second partition is arranged on the bottom surface of the strip plate, the first partition is arranged vertically to the second partition, a plurality of limiting holes are symmetrically arranged on the top surface of the screen basket, and limiting columns are arranged in the limiting holes on the bottom surface of the strip plate.

[0010] Furthermore, a plurality of blanking holes are evenly arranged on the bottom surface of the sieve basket, a first rectangular groove is arranged on the side wall of the sieve basket near the bottom, a second rectangular groove is arranged in the first rectangular groove, a sieve plate is slidably arranged in the second rectangular groove, a mounting plate is arranged on the side wall of the sieve plate in the second rectangular groove, a first threaded hole is symmetrically arranged on the side wall of the mounting plate, second threaded holes are symmetrically arranged on both sides of the second rectangular groove in the first rectangular groove, and studs are arranged in the first threaded hole and the second threaded hole on the side wall of the mounting plate.

[0011] Furthermore, a support column is provided on the top surface of the bottom plate, and multiple support columns are provided and a support plate is provided on the top surface of the support column, a centrifugal fan is provided on the top surface of the support plate, and a dust box is provided on the top surface of the support plate on one side of the centrifugal fan, one end of the centrifugal fan is connected to the dust box through a first air pipe, a filter plate is provided in the dust box, a rotating rod is provided on the top surface of the dust box, one end of the rotating rod passes through the top surface of the dust box and a second motor is provided, the other end of the rotating rod passes through the bottom surface of the filter plate and a brush strip is provided, and a cleaning brush is provided on the top surface of the brush strip that is in contact with the bottom surface of the filter plate, the side wall of the dust box is located below the filter plate and is provided with a second air pipe, and the end of the second air pipe passes through the bottom surface of the support plate and a dust hood is provided above the screen frame.

[0012] Furthermore, a handle is provided on the side wall of the mounting plate.

[0013] Furthermore, a supporting leg is disposed on the bottom surface of the base plate, a placing plate is disposed between a plurality of supporting legs, and a collecting box is slidably disposed on the top surface of the placing plate.

[0014] Furthermore, a collecting hole is provided on the top surface of the bottom plate.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a rotary screening machine for removing sand from auto parts castings, which has the following beneficial effects:

[0017] (1) The utility model adopts a structure of a first partition, a second partition, a strip plate, a limiting hole and a limiting column. When the size of the space in the sieve basket needs to be adjusted, the second partition can be removed by first pulling the strip plate upward to separate the limiting columns at both ends of the bottom of the strip plate from the limiting holes on the top surface of the sieve basket. Then, the second partition can be increased or decreased as needed or moved to a suitable position. Finally, the position of the second partition can be positioned by inserting the limiting columns at both ends of the bottom of the strip plate into the limiting holes, thereby realizing the adjustment of the size of the space in the sieve basket, so that the sieve basket can remove sand from castings of different sizes, thereby improving applicability.

[0018] (2) The utility model adopts a structure of a first rectangular recess, a second rectangular recess, a sieve plate, a mounting plate and a stud. When the sieve plate needs to be cleaned and maintained, the stud is separated from the first threaded hole in the first rectangular recess by rotating the stud, and then the sieve plate can be pulled out of the second rectangular recess by pulling the handle, so that the sieve plate can be conveniently disassembled and assembled, thereby improving the convenience of cleaning and maintenance of the sieve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 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.

[0020] Figure 1 It is a cross-sectional view of a rotary screening machine for removing sand from auto parts castings proposed by the utility model;

[0021] Figure 2 It is a structural schematic diagram of the screen basket proposed by the utility model;

[0022] Figure 3 It is a structural schematic diagram of the sieve plate proposed by the utility model;

[0023] Figure 4 It is a structural schematic diagram of the filter plate proposed by the utility model.

[0024] In the figure:

[0025] 1. Bottom plate; 2. First motor; 3. Fixed plate; 4. Mounting plate; 5. Support column; 6. Support plate; 7. Centrifugal fan; 8. First air pipe; 9. Filter plate; 10. Second motor; 11. Rotating rod; 12. Brush strip; 13. Dust box; 14. Second air pipe; 15. Handle; 16. Dust hood; 17. Screen basket; 18. Stud; 19. Telescopic rod; 20. Spring; 21. Support leg; 22. Rotating shaft; 23. Cam; 24. Collecting box; 25. Placement plate; 26. First rectangular groove; 27. Second rectangular groove; 28. Dropping hole; 29. ​​Limiting column; 30. Second partition; 31. Strip plate; 32. Limiting hole; 33. First partition; 34. Screen plate; 35. Collecting hole. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a rotary screening machine for removing sand from auto parts castings is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, according to the embodiment of the utility model, the rotary screening machine for removing sand from auto parts castings includes a bottom plate 1, a telescopic rod 19 is arranged on the top surface of the bottom plate 1, a plurality of telescopic rods 19 are arranged and distributed in a matrix on the top surface of the bottom plate 1, a screen basket 17 is arranged on the top surface of the telescopic rod 19, a spring 20 is arranged on the telescopic rod 19 between the bottom surface of the screen basket 17 and the top surface of the bottom plate 1, a fixed plate 3 is arranged on the top surface of the bottom plate 1 below the screen basket 17, two fixed plates 3 are arranged with a rotating shaft 22 symmetrically rotating between the two fixed plates 3, one end of the rotating shaft 22 passes through the side wall of the fixed plate 3 and is provided with a first motor 2, a plurality of cams 23 are evenly arranged on the rotating shaft 22 close to the bottom surface of the screen basket 17, a plurality of first partitions 33 are evenly arranged in the screen basket 17, a plurality of strip plates 31 are arranged above the first partitions 33 in the screen basket 17, and a plurality of strip plates 31 are arranged on the bottom surface of the strip plates 31 There is a second partition 30, the first partition 33 and the second partition 30 are arranged vertically, and a plurality of limiting holes 32 are symmetrically arranged on the top surface of the sieve basket 17. The bottom surface of the strip plate 31 is located in the limiting hole 32 and a limiting column 29 is arranged. The function of the second partition 30 is that when it is necessary to adjust the size of the space in the sieve basket 17, the second partition 30 can be removed by pulling the strip plate 31 upwards to separate the limiting columns 29 at both ends of the bottom of the strip plate 31 from the limiting holes 32 on the top surface of the sieve basket 17, and then the second partition 30 can be increased or decreased as needed or adjusted to a suitable position. Finally, the position of the second partition 30 is positioned by inserting the limiting columns 29 at both ends of the bottom of the strip plate 31 into the limiting holes 32, thereby realizing the adjustment of the size of the space in the sieve basket 17, so that the sieve basket 17 can remove sand from castings of different sizes, thereby improving applicability.

[0029] In one embodiment, a plurality of blanking holes 28 are evenly arranged on the bottom surface of the sieve basket 17, a first rectangular groove 26 is arranged on the side wall of the sieve basket 17 near the bottom, a second rectangular groove 27 is arranged in the first rectangular groove 26, a sieve plate 34 is slidably arranged in the second rectangular groove 27, a mounting plate 4 is arranged in the second rectangular groove 27 on the side wall of the sieve plate 34, first threaded holes are symmetrically arranged on the side wall of the mounting plate 4, second threaded holes are symmetrically arranged on both sides of the second rectangular groove 27 in the first rectangular groove 26, studs 18 are arranged in the first threaded holes and the second threaded holes on the side wall of the mounting plate 4, and the function of the studs 18 is to position the mounting plate 4.

[0030] In one embodiment, a support column 5 is provided on the top surface of the bottom plate 1, and a plurality of support columns 5 are provided. A support plate 6 is provided on the top surface of the support column 5, and a centrifugal fan 7 is provided on the top surface of the support plate 6. A dust box 13 is provided on the top surface of the support plate 6 on one side of the centrifugal fan 7. One end of the centrifugal fan 7 is connected to the dust box 13 through the first air pipe 8. A filter plate 9 is provided in the dust box 13. A rotating rod 11 is provided on the top surface of the dust box 13. One end of the rotating rod 11 passes through the top surface of the dust box 13. A second electric Machine 10, the other end of the rotating rod 11 passes through the bottom surface of the filter plate 9 and is provided with a brush strip 12, the top surface of the brush strip 12 is in contact with the bottom surface of the filter plate 9 and is provided with a cleaning brush, the side wall of the dust collecting box 13 is located below the filter plate 9 and is provided with a second air pipe 14, the end of the second air pipe 14 passes through the bottom surface of the support plate 6 and is located above the screen frame and is provided with a dust hood 16, the function of the centrifugal fan 7 is to suck the dust generated during the vibration and sand removal process of the casting into the dust collecting box 13 through the centrifugal fan 7, so as to avoid dust overflowing and polluting the working environment.

[0031] In one embodiment, a handle 15 is provided on the side wall of the mounting plate 4 , and the function of the handle 15 is to facilitate pulling the sieve plate 34 out of the second rectangular groove 27 .

[0032] In one embodiment, a support leg 21 is provided on the bottom surface of the base plate 1, and a plurality of support legs 21 are provided with a placement plate 25 between the support legs 21. A collection box 24 is slidably provided on the top surface of the placement plate 25, and the function of the collection box 24 is to collect the screened molding sand.

[0033] In one embodiment, a collecting hole 35 is provided on the top surface of the bottom plate 1 , and the collecting hole 35 is used to facilitate the screened molding sand to fall into the collecting box 24 .

[0034] Working principle: When in use, first adjust the size of the space in the sieve basket 17 according to the size of the casting, and remove the second partition plate 30 by pulling the strip plate 31 upwards to separate the limiting posts 29 at the two ends of the bottom of the strip plate 31 from the limiting holes 32 on the top surface of the sieve basket 17. Then, increase or decrease the second partition plate 30 as needed or adjust the second partition plate 30 to a suitable position, and finally position the second partition plate 30 by inserting the limiting posts 29 at the two ends of the bottom of the strip plate 31 into the limiting holes 32, thereby adjusting the size of the space in the sieve basket 17, so that the sieve basket 17 can remove sand from castings of different sizes, thereby improving its applicability. After placing the casting in the sieve basket 17, the first motor 2, the second motor 10 and the centrifugal fan 7 are started, and the first motor 2 The rotating shaft 22 is driven to rotate and then the cam 23 is driven to rotate to vibrate the screen basket 17. The dust generated during the vibration and sand removal process of the casting can be sucked into the dust box 13 through the centrifugal fan 7 to prevent dust from overflowing and polluting the working environment. The second motor 10 is driven to rotate the rotating rod 11 and then the brush bar 12 is driven to rotate. The cleaning brush on the surface of the brush bar 12 can clean the surface of the filter plate 9 to prevent the filter plate 9 from being blocked. When the screen plate 34 needs to be cleaned and maintained, the stud 18 is separated from the first threaded hole in the first rectangular groove 26 by rotating the stud 18, and then the screen plate 34 can be pulled out of the second rectangular groove 27 by pulling the handle 15, so that the screen plate 34 can be conveniently disassembled and assembled, thereby improving the convenience of cleaning and maintenance of the screen plate 34.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary screening machine for removing sand from auto parts castings, comprising a bottom plate (1), characterized in that: The top surface of the bottom plate (1) is provided with a telescopic rod (19), a plurality of the telescopic rods (19) are provided and are distributed in a matrix on the top surface of the bottom plate (1), a screen basket (17) is provided on the top surface of the telescopic rod (19), a spring (20) is provided on the telescopic rod (19) between the bottom surface of the screen basket (17) and the top surface of the bottom plate (1), a fixed plate (3) is provided on the top surface of the bottom plate (1) below the screen basket (17), two fixed plates (3) are provided, and a rotating shaft (22) is provided between the two fixed plates (3) for symmetrical rotation, and one end of the rotating shaft (22) passes through a side wall of the fixed plate (3) and is provided with a A first motor (2), a plurality of cams (23) are evenly arranged on the rotating shaft (22) close to the bottom surface of the sieve basket (17), a plurality of first partitions (33) are evenly arranged in the sieve basket (17), a plurality of strip plates (31) are arranged above the first partitions (33) in the sieve basket (17), a second partition (30) is arranged on the bottom surface of the strip plates (31), the first partition (33) and the second partition (30) are arranged vertically, a plurality of limiting holes (32) are symmetrically arranged on the top surface of the sieve basket (17), and limiting columns (29) are arranged in the limiting holes (32) on the bottom surface of the strip plates (31).

2. The rotary screening machine for removing sand from auto parts castings according to claim 1, characterized in that: A plurality of blanking holes (28) are evenly arranged on the bottom surface of the sieve basket (17); a first rectangular groove (26) is arranged on the side wall of the sieve basket (17) near the bottom; a second rectangular groove (27) is arranged in the first rectangular groove (26); a sieve plate (34) is slidably arranged in the second rectangular groove (27); a mounting plate (4) is arranged on the side wall of the sieve plate (34) in the second rectangular groove (27); first threaded holes are symmetrically arranged on the side wall of the mounting plate (4); second threaded holes are symmetrically arranged on both sides of the second rectangular groove (27) in the first rectangular groove (26); and studs (18) are arranged in the first threaded holes and the second threaded holes on the side wall of the mounting plate (4).

3. The rotary screening machine for removing sand from auto parts castings according to claim 1, characterized in that: The top surface of the bottom plate (1) is provided with a support column (5), the support column (5) is provided with a plurality of support columns (5), and the top surface of the support column (5) is provided with a support plate (6), the top surface of the support plate (6) is provided with a centrifugal fan (7), the top surface of the support plate (6) is provided with a dust box (13) located on one side of the centrifugal fan (7), one end of the centrifugal fan (7) is connected to the dust box (13) through a first air pipe (8), a filter plate (9) is provided in the dust box (13), and the top surface of the dust box (13) is provided with a filter plate (9). A rotating rod (11) is provided, one end of the rotating rod (11) passes through the top surface of a dust collecting box (13) and is provided with a second motor (10), the other end of the rotating rod (11) passes through the bottom surface of a filter plate (9) and is provided with a brush strip (12), the top surface of the brush strip (12) is in contact with the bottom surface of the filter plate (9) and is provided with a cleaning brush, a second air pipe (14) is provided through the side wall of the dust collecting box (13) below the filter plate (9), the end of the second air pipe (14) passes through the bottom surface of a support plate (6) and is provided with a dust hood (16) above the screen frame.

4. The rotary screening machine for removing sand from auto parts castings according to claim 2, characterized in that: A handle (15) is provided on the side wall of the mounting plate (4).

5. The rotary screening machine for removing sand from auto parts castings according to claim 1, characterized in that: The bottom surface of the base plate (1) is provided with a supporting leg (21), the supporting leg (21) is provided with a plurality of supporting legs (21), a placing plate (25) is arranged between the supporting legs (21), and a collecting box (24) is slidably arranged on the top surface of the placing plate (25).

6. The rotary screening machine for desanding auto parts castings according to claim 1, characterized in that: The top surface of the bottom plate (1) is provided with a collecting hole (35).

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