Vibration sand falling machine

Abstract

The utility model discloses a vibration shakeout machine, and aims to solve the problems that the working efficiency of cleaning waste sand in an iron mold sand box is low, and time and labor are wasted due to the fact that residual waste sand is manually treated. According to the technical scheme, the vibratory shakeout machine is characterized in that the vibratory shakeout machine comprises a rack, a first screening part, a second screening part and a collecting box are arranged on the rack, the first screening part and the second screening part are both rotationally connected to the rack, the second screening part is arranged on the inner side of the collecting box, the first screening part is arranged on the inner side of the second screening part, and the inner diameter of the first screening part is smaller than that of the second screening part; the first screen part and the second screen part are both arranged in a rolling barrel shape, first screen mesh holes and second screen mesh holes are formed in the first screen part and the second screen part respectively, the inner diameter of the first screen mesh holes is larger than that of the second screen mesh holes, and a driving assembly used for driving the first screen part and the second screen part to rotate in the collecting box is arranged on the rack. According to the vibration shakeout machine disclosed by the utility model, waste sand can be conveniently discharged, and meanwhile, the normal molding sand and casting separation efficiency is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, and more specifically, to a vibrating sand-falling machine. Background Art

[0002] Sand dropping is an important part in mechanical casting, which is mainly completed by a sand dropping machine. A sand dropping machine is a casting equipment that uses vibration and impact to separate the sand and casting in the mold. It is widely used in the field of mechanical casting.

[0003] After the iron mold casting is completed, the waste sand in the iron mold sand box needs to be cleaned. At present, the waste sand in the iron mold sand box is cleaned by pushing the push rod into the sand shooting hole of the iron mold sand box, so as to push out the waste sand in the iron mold sand box to achieve the cleaning purpose. In the process of cleaning the waste sand, because the iron mold sand box is heavy, it leads to large inertia, resulting in low positioning accuracy. Therefore, in order to make the push rod enter the sand shooting hole of the iron mold sand box more accurately, the hole axis gap between the push rod and the sand shooting hole of the iron mold sand box is large. However, this will cause a lot of waste sand to remain in the iron mold sand box, and the remaining waste sand needs to be manually processed in and out, which leads to low efficiency of the waste sand cleaning work in the iron mold sand box, time-consuming and labor-intensive, and increased production costs.

[0004] In response to the above problems, there is a vibrating sand-falling machine with a publication number of CN219852090U, which includes: a frame portion; a top core system, which is arranged on the frame portion to clean the waste sand in the sand shooting holes of the iron mold sand box; a vibration portion, which includes a supporting rod and a vibration device, and the supporting rod is used to support and position the iron mold sand box so as to transfer the vibration energy of the vibration device to the iron mold sand box.

[0005] When cleaning waste sand, the sand-falling machine of the above scheme not only pushes out part of the waste sand through the pushing core system, but also makes the iron mold sand box vibrate violently through the vibration part, forcing the remaining waste sand to leave the iron mold sand box. There is no need for workers to clean it multiple times, thereby significantly improving the efficiency of waste sand cleaning work.

[0006] At the same time, the utility model proposes a new solution to solve the problem that the waste sand cleaning work of the iron mold sand box is inefficient, time-consuming and labor-intensive due to manual processing of the residual waste sand. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a vibrating sand falling machine, which can facilitate the discharge of waste sand without affecting the efficiency of normal separation of molding sand and castings.

[0008] The above technical purpose of the utility model is achieved through the following technical solutions: a vibrating sand falling machine, including a frame, on which a first screen portion, a second screen portion and a collecting box are arranged, the first screen portion and the second screen portion are both rotatably connected to the frame, the second screen portion is arranged on the inner side of the collecting box, the first screen portion is arranged on the inner side of the second screen portion, the inner diameter of the first screen portion is smaller than the inner diameter of the second screen portion, the first screen portion and the second screen portion are both arranged in a drum shape, the first screen portion and the second screen portion are respectively provided with a first screen mesh hole and a second screen mesh hole, the inner diameter of the first screen mesh hole is larger than the inner diameter of the second screen mesh hole, and a driving component for driving the first screen portion and the second screen portion to rotate in the collecting box is arranged on the frame.

[0009] By adopting the above technical scheme, a feed port and a discharge port are respectively provided on the collecting box, and corresponding feed ports are also provided on the first screen part and the second screen part, so that the staff can pour the raw materials to be screened into the first screen part through each feed port first, and the waste sand that can be discharged can also fall into the second screen part through the first screen hole of the first screen part, and at the same time, the staff starts the driving component to make the first screen part and the second screen part rotate, then the first screen part and the second screen part arranged in a drum shape can improve the efficiency of separating the casting and the waste sand, and the first screen part and the second screen part will also generate vibration while rotating, further improving the separation of the waste sand and the casting, and the waste sand can quickly fall into the collecting box through the screen hole of the second screen part for collection, and after the waste sand is completely separated, the driving component is closed, so that the waste sand can be taken out through the discharge port of the collecting box, and can gradually be discharged through the opening of each feed port, the structure is not complicated, it is convenient for the staff to operate, and it also improves the screening and recovery of the waste sand.

[0010] The utility model is further configured as follows: the driving assembly includes a motor arranged on a frame, a cam fixedly connected to an output shaft of the motor, and a rotating shaft fixedly connected to the cam, the rotating shaft is penetrated in the first screen portion, and one end of the rotating shaft away from the cam is rotatably connected to the frame.

[0011] By adopting the above technical solution, the motor on the frame is started, so that the motor drives the cam to start rotating. When the cam rotates, it can drive the rotating shaft and the first screen part to rotate, and the vibration effect of the first screen part is achieved under the rotational force and eccentric gravity of the cam, and the castings and ore sand inside the first screen part will be separated with the vibration of the first screen part. At the same time, the second screen part also starts to vibrate, and the waste sand will also fall from the second screen part into the collection box for collection, thereby achieving the screening effect and facilitating the screening of waste sand and castings.

[0012] The utility model is further configured as follows: a protruding block is arranged on the rotating shaft.

[0013] By adopting the above technical solution, the setting of the protruding blocks can further improve the eccentric gravity of the rotating shaft during the rotation process, which can further improve the vibration efficiency and vibration effect of the entire first screen part and the second screen part, and can ensure the efficiency of separation of waste sand and castings.

[0014] The utility model is further configured as follows: the protruding block is provided with an arc surface.

[0015] By adopting the above technical solution, the setting of the arc surface makes the protruding block more efficient when rotating with the rotating shaft, reduces the resistance of the protruding block to rotation, makes the protruding block rotate more smoothly and more efficiently, and thus improves the vibration efficiency of the entire driving assembly, thereby further improving the efficiency of separation of castings and waste sand.

[0016] The utility model is further configured as follows: a sliding block is arranged on the frame, the rotating shaft is rotatably connected to the sliding block, and a sliding groove for the sliding block to slide is opened on the frame.

[0017] By adopting the above technical solution, the sliding block and the frame are not fixed and a gap is generated, thereby improving the vibration effect of the sliding block and the rotating shaft, and at the same time further improving the vibration effect of the first screen part and the second screen part, thereby improving the efficiency of waste sand and gradual separation.

[0018] The utility model is further configured as follows: both ends of the sliding block are provided with limiting blocks, and the side walls of the sliding groove are provided with limiting grooves for the limiting blocks to slide.

[0019] By adopting the above technical solution, the limiting blocks at both ends of the sliding block will always be restricted in the limiting grooves, thereby preventing the sliding block from leaving the sliding groove and affecting the working effect of the entire driving assembly.

[0020] The utility model is further configured as follows: a push spring is abutted between the sliding block and the inner wall of the sliding groove.

[0021] By adopting the above technical solution, under the action of the protruding block and the cam, the sliding block will vibrate, and the push spring abutting between the sliding block and the frame will also vibrate, which can further improve the vibration effect of the entire driving assembly, thereby improving the efficiency of waste sand discharge. At the same time, the push spring also plays a certain role in supporting the sliding block.

[0022] The utility model is further configured as follows: a rotating sleeve is fixedly connected to the outer side of the rotating shaft, the first screen part is fixedly connected to the rotating sleeve, and the second screen part is fixedly connected to the first screen part.

[0023] By adopting the above technical solution, the protruding block is also located inside the rotating sleeve, which not only protects the rotating shaft and the protruding block, but also facilitates the connection between the first screen part, the second screen part and the rotating sleeve.

[0024] In summary, the utility model has the following beneficial effects: under the action of the first screen part, the second screen part and the driving assembly, the waste sand can be easily discharged, the efficiency of the waste sand discharge is guaranteed, and at the same time, the normal efficiency of separation of molding sand and castings is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the frame of the utility model, which is mainly used to show the structure and position relationship of the first screen part, the second screen part and the collection box on the frame;

[0026] Figure 2 It is a structural schematic diagram of the first screen portion of the utility model, and is mainly used to show the structure and positional relationship between the first screen portion and the driving assembly.

[0027] In the figure: 1, frame; 2, collecting box; 3, second screen part; 4, first screen part; 5, cam; 6, rotating shaft; 7, sliding block; 8, push spring; 9, rotating sleeve; 10, protruding block; 11, limiting groove. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The utility model is described in detail below in conjunction with the accompanying drawings.

[0032] A vibrating sand falling machine, referring to Figure 1-Figure 2 , comprising a frame 1, on which a first screen part 4, a second screen part 3 and a collecting box 2 are arranged, Figure 2 Only the first screen part 4 is slid out, and the second screen part 3 is also arranged in the same manner as the first screen part 4, except that the diameter is much larger than that of the first screen part 4 and is fixed on the outside of the first screen part 4. The first screen part 4 and the second screen part 3 are both rotatably connected to the frame 1, the second screen part 3 is arranged on the inside of the collecting box 2, the first screen part 4 is arranged on the inside of the second screen part 3, the inner diameter of the first screen part 4 is smaller than that of the second screen part 3, the first screen part 4 and the second screen part 3 are both arranged in a drum shape, the first screen part 4 and the second screen part 3 are respectively provided with a first screen mesh hole and a second screen mesh hole, and the inner diameter of the first screen mesh hole is larger than that of the second screen mesh hole;

[0033] A driving assembly for driving the first screen portion 4 and the second screen portion 3 to rotate in the collecting box 2 is provided on the frame 1, and the driving assembly includes a motor arranged on the frame 1, a cam 5 fixedly connected to the output shaft of the motor, and a rotating shaft 6 fixedly connected to the cam 5, the rotating shaft 6 is penetrated in the first screen portion 4, and one end of the rotating shaft 6 away from the cam 5 is rotatably connected to the frame 1, a rotating sleeve 9 is fixedly connected to the outer side of the rotating shaft 6, the first screen portion 4 is fixedly connected to the rotating sleeve 9, and the second screen portion 3 is fixedly connected to the first screen portion 4.

[0034] A protruding block 10 is provided on the rotating shaft 6 , and an arc surface is provided on the protruding block 10 .

[0035] A sliding block 7 is provided on the frame 1, and a rotating shaft 6 is rotatably connected to the sliding block 7. A sliding groove for the sliding block 7 to slide is provided on the frame 1. Limiting blocks are provided at both ends of the sliding block 7. A limiting groove 11 for the limiting block to slide is provided on the side wall of the sliding groove. A push spring 8 is abutted between the sliding block 7 and the inner wall of the sliding groove.

[0036] Working principle: the collecting box 2 is respectively provided with a feed port and a discharge port, and corresponding feed ports are also provided on the first screen part 4 and the second screen part 3, so that the staff can pour the raw materials to be screened into the first screen part 4 through each feed port first, and the waste sand that can be discharged can also fall into the second screen part 3 through the first screen hole of the first screen part 4, and at the same time, the staff starts the driving component to make the first screen part 4 and the second screen part 3 rotate, then the first screen part 4 and the second screen part 3 arranged in a drum shape can improve the efficiency of separating the casting and the waste sand, and the first screen part 4 and the second screen part 3 will also generate vibration while rotating, further improving the separation of the waste sand and the casting, and the waste sand can quickly fall into the collecting box 2 through the screen holes of the second screen part 3 for collection, and when the waste sand is completely separated, the driving component is closed, so that the waste sand can be taken out through the discharge port of the collecting box 2, and can gradually be discharged through the opening of each feed port. The structure is not complicated, which is convenient for the staff to operate and also improves the screening and recovery of the waste sand.

[0037] Start the motor on the frame 1, so that the motor drives the cam 5 to start rotating. When the cam 5 rotates, it can drive the rotating shaft 6 and the first screen part 4 to rotate, and the first screen part 4 is vibrated under the rotational force and eccentric gravity of the cam 5, and the castings and ore sand inside the first screen part 4 will be separated as the first screen part 4 vibrates. At the same time, the second screen part 3 also starts to vibrate, and the waste sand will also fall from the second screen part 3 into the collecting box 2 for collection, thereby achieving the screening effect and facilitating the screening of waste sand and castings.

[0038] The setting of the protruding block 10 can further improve the eccentric gravity of the rotating shaft 6 during the rotation process, which can further improve the vibration efficiency and vibration effect of the entire first screen part 4 and the second screen part 3, and can ensure the efficiency of separation of waste sand and castings. At the same time, the setting of the arc surface makes the protruding block 10 more efficient when rotating with the rotating shaft 6, reduces the resistance to the rotation of the protruding block 10, and makes the protruding block 10 rotate more smoothly and more efficiently, thereby improving the vibration efficiency of the entire driving assembly, thereby further improving the efficiency of separation of castings and waste sand.

[0039] The sliding block 7 is not fixed to the frame 1 and a gap is generated, thereby improving the vibration effect of the sliding block 7 and the rotating shaft 6, and further improving the vibration effect of the first screen part 4 and the second screen part 3, and improving the efficiency of waste sand and gradual separation. The limit blocks at both ends of the sliding block 7 will always be restricted in the limit groove 11, thereby preventing the sliding block 7 from leaving the sliding groove and affecting the working effect of the entire driving assembly.

[0040] Under the action of the protruding block 10 and the cam 5, the sliding block 7 will vibrate, and the pushing spring 8 abutting between the sliding block 7 and the frame 1 will also vibrate, which can further improve the vibration effect of the entire driving assembly, thereby improving the efficiency of waste sand discharge. At the same time, the pushing spring 8 also plays a role in supporting the sliding block 7 to a certain extent.

[0041] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A vibrating sand-falling machine, comprising a frame (1), characterized in that: The frame (1) is provided with a first screen portion (4), a second screen portion (3) and a collection box (2); the first screen portion (4) and the second screen portion (3) are both rotatably connected to the frame (1); the second screen portion (3) is arranged inside the collection box (2); the first screen portion (4) is arranged inside the second screen portion (3); the inner diameter of the first screen portion (4) is smaller than the inner diameter of the second screen portion (3); the first screen portion (4) and the second screen portion (3) are both arranged in a drum shape; the first screen portion (4) and the second screen portion (3) are respectively provided with a first screen mesh hole and a second screen mesh hole; the inner diameter of the first screen mesh hole is larger than the inner diameter of the second screen mesh hole; the frame (1) is provided with a driving component for driving the first screen portion (4) and the second screen portion (3) to rotate in the collection box (2).

2. A vibrating sand-falling machine according to claim 1, characterized in that: The driving assembly comprises a motor arranged on a frame (1), a cam (5) fixedly connected to an output shaft of the motor, and a rotating shaft (6) fixedly connected to the cam (5); the rotating shaft (6) is inserted into the first screen portion (4); and one end of the rotating shaft (6) away from the cam (5) is rotatably connected to the frame (1).

3. A vibrating sand-falling machine according to claim 2, characterized in that: A protruding block (10) is provided on the rotating shaft (6).

4. A vibrating sand-falling machine according to claim 3, characterized in that: The protruding block (10) is provided with an arc surface.

5. The vibrating sand-falling machine according to claim 2, characterized in that: The frame (1) is provided with a sliding block (7), the rotating shaft (6) is rotatably connected to the sliding block (7), and the frame (1) is provided with a sliding groove for the sliding block (7) to slide.

6. A vibrating sand-falling machine according to claim 5, characterized in that: Limit blocks are arranged at both ends of the sliding block (7), and a limit groove (11) for the limit block to slide is provided on the side wall of the sliding groove.

7. The vibrating sand-falling machine according to claim 5, characterized in that: A push spring (8) is abutted between the sliding block (7) and the inner wall of the sliding groove.

8. The vibrating sand-falling machine according to claim 2, characterized in that: A rotating sleeve (9) is fixedly connected to the outer side of the rotating shaft (6), the first screen part (4) is fixedly connected to the rotating sleeve (9), and the second screen part (3) is fixedly connected to the first screen part (4).

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