Sand mixer for foundry work

Abstract

The application relates to the casting technical field and discloses a sand mixer for casting processing, which comprises a sand mixing pool, a rotating column rotatably arranged in the sand mixing pool, and a driving structure for driving the rotating column to rotate. In the process of stirring and mixing sand, the sand material retained in the area close to the stirring plate of the support can be moved to the stirring plate by the moving conveying belt and the stirring plate, so that the sand material retained in the area close to the stirring plate of the support can be moved and finally stirred by the stirring plate, the fullness of sand mixing is improved, the sand material adhered to the surface of the stirring plate is shaken off through continuous vibration of the stirring plate, the adhered sand material cannot be stirred, sand material remaining on the surface of the stirring plate can be cleaned through vibration of the stirring plate after the sand material is mixed and discharged, sand material leaving the stirring plate can be collected by workers after the subsequent shutdown, and sand material waste is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of casting, and particularly relates to a sand mixer for casting processing. BACKGROUND

[0002] Casting is a metal hot working process, which is a process method for obtaining a certain shape and performance casting by pouring liquid metal into a mold cavity and then cooling and solidifying.

[0003] In the process of casting, a sand mixer is needed to stir the sand. The sand mixer is a device used for mixing mold sand and core sand in casting production. Its main function is to uniformly mix new sand, old sand, binders, additives and other raw materials, so that the mold sand and core sand have good performance to meet the requirements of the casting process. The sand mixer is divided into: roller-type sand mixer, rotor-type sand mixer and pendulum-type sand mixer.

[0004] The existing rotor-type sand mixer pushes the sand towards the stirring plate during stirring through the arc-shaped support. However, due to the large amount of sand inside, the sand near the stirring plate area will be stagnant, i.e. unable to move towards the stirring plate for stirring, resulting in poor sand mixing effect during use.

[0005] Therefore, it is necessary to invent a sand mixer for casting processing to solve the above problems. SUMMARY

[0006] In view of the above problems, the application provides a sand mixer for casting processing to solve the problems in the background art.

[0007] To achieve the above purpose, the application provides the following technical scheme: a sand mixer for casting processing, comprising a sand mixing pool, a rotating column, and a rotating column installed inside the sand mixing pool;

[0008] A driving structure is used to drive the rotating column to rotate.

[0009] A sufficient sand mixing assembly is equidistantly arranged around the outside of the rotating column to fully mix the sand in the sand mixing pool.

[0010] The sufficient sand mixing assembly comprises:

[0011] A support is fixedly installed on the outside of the rotating column.

[0012] A stirring plate is fixedly connected to the end of the support.

[0013] A guide wheel is symmetrically and rotatably installed inside the support.

[0014] A conveying belt is sleeved on the outside of the two guide wheels.

[0015] A limiting structure is arranged outside the support and used for limiting the conveying belt;

[0016] A stirring plate is arranged outside the conveying belt and used for stirring the sand;

[0017] A storage assembly is arranged for storing the stirring plate;

[0018] A driving assembly is arranged for driving the guide wheel to rotate.

[0019] Further, the storage assembly comprises:

[0020] A storage groove is arranged outside the conveying belt;

[0021] A plurality of installation rods are equidistantly arranged in the storage groove, and the stirring plate is slidably sleeved outside the installation rods;

[0022] A spring is sleeved outside the installation rod;

[0023] A first inclined plate is arranged outside the support and used for pressing the stirring plate;

[0024] A second inclined plate is arranged outside the rotating column and used for pressing the stirring plate.

[0025] Further, the driving assembly comprises:

[0026] A rotating rod is connected to the top of the guide wheel close to the rotating column, and the top of the rotating rod extends above the rotating column through the support and the rotating column;

[0027] A gear is connected to the top of the rotating rod;

[0028] A tooth ring is sleeved outside the gear and engaged with the gear;

[0029] A cross plate connects the tooth ring with the sand mixing tank.

[0030] Further, one side of the limiting structure is provided with a pressing surface, the pressing surface is arranged as an arc surface, the side of the limiting structure away from the pressing surface is provided with a flat surface, the inner side of the stirring plate is provided with a sliding hole, the sliding inner wall is symmetrically provided with a sliding groove, the end of the installation rod is symmetrically connected with a stop block, and the stop block is slidably arranged in the corresponding sliding groove.

[0031] Further, the support is arranged as an arc shape, the bottom of the side of the support facing the sand is provided with an inclined surface, and the bottom of the support is attached to the bottom wall of the sand mixing tank.

[0032] Further, the conveying belt is specifically a heavy object conveying belt on a heavy belt conveyor.

[0033] Further, the outside of the sand mixing tank is provided with an opening, a material blocking plate is arranged in the opening, and the inside of the material blocking plate is flush with the inner wall of the sand mixing tank.

[0034] Further, the outside of the support supports the inside of the conveying belt.

[0035] Technical effects and advantages of the present application:

[0036] 1. The present application can move the sand materials retained in the area near the turning plate to the turning plate during the process of turning and mixing sand, so that the sand materials retained in the area near the turning plate can be moved and finally be turned by the turning plate, improving the degree of sand mixing.

[0037] 2. The present application can shake the sand materials attached to the surface of the turning plate, so that the sand materials can be turned and mixed, and the sand materials remaining on the surface of the turning plate can be cleaned after the sand materials are mixed and discharged, so that the sand materials can be collected after the machine stops, avoiding the waste of sand materials. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 The structure schematic diagram of the sand mixing machine for casting processing is shown.

[0039] Figure 2 The structure schematic diagram of the rotating column and the fully mixed sand assembly combination is shown.

[0040] Figure 3 The partial cross-sectional structure schematic diagram of the fully mixed sand assembly is shown.

[0041] Figure 4 The structure schematic diagram of the Figure 3 The enlarged structure schematic diagram of A in the figure is shown.

[0042] Figure 5 The structure schematic diagram of the Figure 3 The enlarged structure schematic diagram of B in the figure is shown.

[0043] Figure 6 The structure schematic diagram of the Figure 3 The enlarged structure schematic diagram of C in the figure is shown.

[0044] In the figure: 1, sand mixing tank; 2, rotating column; 3, support; 4, guide wheel; 5, conveying belt; 6, poking plate; 7, mounting rod; 8, spring; 9, first inclined plate; 10, second inclined plate; 11, limiting structure; 12, rotating rod; 13, gear; 14, gear ring; 15, cross plate; 16, plane; 17, inclined surface; 18, driving structure; 19, material blocking plate; 20, chute; 21, stop block; 22, material turning plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the present application will be described clearly and completely below in conjunction with the embodiments.

[0046] The present application provides a sand mixer for casting processing, as shown in the figure, comprising a sand mixing tank 1, a rotating column 2, a driving structure 18, a full sand mixing assembly; Figures 1 to 6

[0047] The rotating column 2 is rotatably installed inside the sand mixing tank 1, the driving structure 18 is used to drive the rotating column 2 to rotate, the driving structure 18 is arranged at the bottom of the sand mixing tank 1, the driving structure 18 is a driving member for driving the rotating column arranged in the middle of the sand mixer to rotate in the prior art, and the specific working principle thereof will not be described here, and the full sand mixing assembly is equidistantly arranged outside the rotating column 2, and is used for fully mixing the sand in the sand mixing tank 1;

[0048] The full sand mixing assembly comprises a support 3, a guide wheel 4, a conveying belt 5, a poking plate 6, a limiting structure 11, a material turning plate 22, a storage assembly, and a driving assembly.

[0049] The support 3 is fixedly installed outside the rotating column 2, the material turning plate 22 is fixedly connected to the end of the support 3, the guide wheel 4 is rotatably installed inside the support 3, the conveying belt 5 is sleeved outside the two guide wheels 4, the limiting structure 11 is arranged in multiple and equidistantly fixed outside the support 3, and is used for limiting the conveying belt 5, the poking plate 6 is slidably arranged outside the conveying belt 5, and is used for poking the sand to move, the storage assembly is used for storing the poking plate 6, and the driving assembly is used for driving the guide wheel 4 to rotate.

[0050] ​In use, the sand is poured into the sand mixing pool 1, the rotating column 2 is driven to rotate by the driving structure 18, the support 3 is driven to rotate, the guide wheel 4 and the conveying belt 5 are driven to move, the sand is pushed to the turning plate 22, the sand is turned by the turning plate 22, the sand is mixed, in the process, the driving assembly drives the guide wheel 4 to rotate, the conveying belt 5 is driven to rotate, the pushing plate 6 is driven to move, the pushing plate 6 pushes the sand accumulated near the turning plate 22 to the turning plate 22, the sand accumulated near the turning plate 22 is pushed to the turning plate 22, the sand accumulated near the turning plate 22 is turned by the turning plate 22, the sand accumulated near the turning plate 22 is moved, the sand accumulated near the turning plate 22 is finally turned by the turning plate 22, the mixing degree of the sand is improved, when the pushing plate 6 moves to the guide wheel 4, the pushing plate 6 is accommodated by the accommodating assembly, the pushing plate 6 does not abut against the support 3 or the rotating column 2, the normal movement of the conveying belt 5 is ensured, when the pushing plate 6 moves away from the guide wheel 4, the pushing plate 6 is reset, the sand accumulated near the turning plate 22 can be continuously pushed to the turning plate 22.

[0051] As shown in Figures 3 to 4 , the accommodating assembly comprises an accommodating groove, a mounting rod 7, a spring 8, a first inclined plate 9 and a second inclined plate 10.

[0052] The accommodating groove is arranged outside the conveying belt 5, the mounting rod 7 is equidistantly fixedly arranged in the accommodating groove, the pushing plate 6 is slidably sleeved outside the mounting rod 7, the spring 8 is sleeved outside the mounting rod 7, the first inclined plate 9 is fixedly arranged outside the support 3 and used for pressing the pushing plate 6, specifically, the first inclined plate 9 is arranged at a position near the guide wheel 4 of the support 3, and the second inclined plate 10 is fixedly arranged outside the rotating column 2 and used for pressing the pushing plate 6, specifically, the second inclined plate 10 is arranged at a position near the guide wheel 4 of the rotating column 2.

[0053] The conveying belt 5 drives the pushing plate 6 to move, when the pushing plate 6 moves to the first inclined plate 9, the pushing plate 6 is pressed by the inclined surface of the first inclined plate 9 and is retracted into the accommodating groove, at this time, the pushing plate 6 compresses the spring 8 and makes the spring 8 deform, so that the pushing plate 6 can finally be retracted into the accommodating groove and will not be hindered by the support 3, the movement of the conveying belt 5 is ensured, after the pushing plate 6 moves away from the guide wheel 4 of the support 3, the spring 8 is reset and drives the pushing plate 6 to be reset, when the pushing plate 6 moves to the second inclined plate 10, the pushing plate 6 is retracted into the accommodating groove according to the above principle, and the pushing plate 6 is reset after moving away from the guide wheel 4.

[0054] As shown in Figure 1 and Figure 2 , the driving assembly comprises a rotating rod 12, a gear 13, a gear ring 14 and a cross plate 15.

[0055] The rotating rod 12 is fixedly connected to the top end of the guide wheel 4 close to the rotating column 2, the top of the rotating rod 12 extends to the upper side of the rotating column 2 through the support 3 and the rotating column 2, the gear 13 is fixedly connected to the top of the rotating rod 12, the gear ring 14 is sleeved on the outside of the gear 13 and is engaged with the gear 13, and the horizontal plate 15 fixedly connects the gear ring 14 and the sand mixing tank 1.

[0056] When the rotating column 2 rotates, the guide wheel 4, the rotating rod 12 and the gear 13 rotate at the same time, the gear 13 moves along the teeth on the inner wall of the gear ring 14, so that the gear 13 rotates, the rotating rod 12 and the guide wheel 4 rotate at the same time, so as to drive the guide wheel 4 and the conveyor belt 5 to rotate.

[0057] As shown in Figures 2 to 4 , one side of the limiting structure 11 is provided with a pressing surface, the pressing surface is provided as an arc surface, the other side of the limiting structure 11 away from the pressing surface is provided with a flat surface 16, the inner side of the material pushing plate 6 is provided with a sliding hole, the sliding inner wall is symmetrically provided with a sliding groove 20, the end of the mounting rod 7 is symmetrically connected with a stop block 21, and the stop block 21 is slidingly arranged in the corresponding sliding groove 20.

[0058] When the material pushing plate 6 moves to the pressing surface of the limiting structure 11, the material pushing plate 6 is pressed and contacted with the arc surface due to the arc surface, and is received into the storage groove, and the compressed spring 8 is deformed at the same time. At this time, the stop block 21 slides relative to the sliding groove 20. When the material pushing plate 6 moves to the flat surface 16, the material pushing plate 6 is away from the limiting structure 11, the compressed spring 8 is quickly reset with the material pushing plate 6, the inner wall of the sliding groove 20 collides with the stop block 21 to generate vibration, the vibration makes the sand attached to the surface of the material pushing plate 6 fall off, avoids that the attached sand cannot be turned over, and after the sand mixing is completed and discharged, the sand remaining on the surface of the material pushing plate 6 can be cleaned through the vibration of the material pushing plate 6. After the subsequent shutdown, the staff can collect the sand away from the material pushing plate 6, so as to avoid the waste of sand.

[0059] As shown in Figure 2 , the shape of the support 3 is provided as an arc, and the bottom of the side of the support 3 facing the sand is provided with an inclined surface 17, and the bottom of the support 3 is attached to the bottom wall of the sand mixing tank 1.

[0060] With the rotation of the support 3, the sand is pushed, and the sand on the bottom wall of the sand mixing tank 1 is guided to the conveyor belt 5 through the setting of the inclined surface 17, so that the sand can be pushed to the turning plate 22 by the subsequent material pushing plate 6.

[0061] As shown in Figure 2 , the conveyor belt 5 is specifically a heavy object conveying belt on a heavy belt conveyor.

[0062] The hardness of the conveyor belt 5 is high, and the thickness of the conveyor belt 5 can meet the installation of the material pushing plate 6.

[0063] As Figure 1 shown, the outside of the sand mixing tank 1 is provided with an opening, and a material blocking plate 19 is arranged in the opening. The inner side of the material blocking plate 19 is flush with the inner wall of the sand mixing tank 1. The connection mode of the material blocking plate 19 and the sand mixing tank 1 is the same as the connection mode of the sand mixing tank and the material blocking plate in the prior art.

[0064] As Figure 3 shown, the outside of the support 3 supports the inside of the conveying belt 5.

[0065] So that the support 3 can push the sand when moving in cooperation with the conveying belt 5.

[0066] Working principle: in use, the sand is poured into the sand mixing tank 1, the driving structure 18 drives the rotating column 2 to rotate with the support 3, the support 3 moves with the guide wheel 4 and the conveying belt 5, and pushes the sand to the turning plate 22 for collection, and then cooperates with the turning plate 22 to turn the sand for sand mixing. In this process, the rotating column 2 rotates, at this time the guide wheel 4, the rotating rod 12 and the gear 13 rotate, the gear 13 moves along the teeth on the inner wall of the gear ring 14 to rotate, the gear 13 rotates with the rotating rod 12 and the guide wheel 4 to drive the guide wheel 4 and the conveying belt 5 to rotate, and then the pushing plate 6 moves, the pushing plate 6 pushes the sand accumulated in the area close to the turning plate 22 of the support 3 to the turning plate 22, so that the accumulated sand is continuously pushed to the turning plate 22, and is turned with the turning plate 22, so that the sand accumulated in the area close to the turning plate 22 of the support 3 can be moved, and finally can also be turned by the turning plate 22 to improve the degree of sand mixing. When the pushing plate 6 moves to the guide wheel 4, the pushing plate 6 is pressed by the inclined surface of the first inclined plate 9 to shrink into the storage groove. At this time, the pushing plate 6 compresses the spring 8 to deform, so that the pushing plate 6 can finally be retracted into the storage groove without being hindered by the support 3, ensuring the movement of the conveying belt 5. After the pushing plate 6 leaves the guide wheel 4 of the support 3, the spring 8 resets the pushing plate 6. When the pushing plate 6 moves to the second inclined plate 10, the same principle makes the pushing plate 6 continue to retract into the storage groove. When the pushing plate 6 moves away from the guide wheel 4, the pushing plate 6 resets to continue to push the accumulated sand to the turning plate 22.

[0067] When the stirring plate 6 moves to the extrusion surface of the limiting structure 11, the stirring plate 6 is extruded by the arc surface, and is received into the receiving groove, and the compressed spring 8 is deformed, at this time, the stop block 21 slides relative to the sliding groove 20, when the stirring plate 6 moves to the plane 16, the stirring plate 6 is away from the limiting structure 11, the compressed spring 8 is quickly reset with the stirring plate 6, the inner wall of the sliding groove 20 collides with the stop block 21 to generate vibration, the vibration makes the sand attached to the surface of the stirring plate 6 shake off, avoids that the attached sand cannot be stirred, and after the sand is mixed and discharged, the sand remaining on the surface is cleaned through the vibration of the stirring plate 6, after the subsequent shutdown, the staff can collect the sand away from the stirring plate 6, and the waste of sand is avoided.

[0068] The above examples are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A sand mixer for foundry processing, comprising a sand mixing tank (1), characterized in that: a rotating column (2) is rotatably installed inside the sand mixing tank (1); a driving structure (18) is used to drive the rotating column (2) to rotate; a thorough mixing assembly is equidistantly arranged outside the rotating column (2) and is used to thoroughly mix the sand in the sand mixing tank (1); the thorough mixing assembly comprises: a support (3) fixedly installed outside the rotating column (2); a turnover plate (22) fixedly connected to the end of the support (3); guide wheels (4) symmetrically rotatably installed inside the support (3); a conveying belt (5) sleeved outside the two guide wheels (4); a limiting structure (11) arranged outside the support (3) and used to limit the conveying belt (5); a poking plate (6) slidably arranged outside the conveying belt (5) and used to move the sand; a storage assembly used to store the poking plate (6); and a driving assembly used to drive the guide wheels (4) to rotate.

2. The sand mixer for foundry processing according to claim 1, characterized in that: the storage assembly comprises: a storage groove opened outside the conveying belt (5); mounting rods (7) equidistantly arranged in the storage groove, the poking plate (6) being slidably sleeved outside the mounting rods (7); springs (8) sleeved outside the mounting rods (7); a first inclined plate (9) arranged outside the support (3) and used to press the poking plate (6); and a second inclined plate (10) arranged outside the rotating column (2) and used to press the poking plate (6).

3. The sand mixer for foundry processing according to claim 2, characterized in that: the driving assembly comprises: a rotating rod (12) connected to the top of the guide wheel (4) close to the rotating column (2), the top of the rotating rod (12) extending above the rotating column (2) through the support (3) and the rotating column (2); a gear (13) connected to the top of the rotating rod (12); a gear ring (14) sleeved outside the gear (13) and engaged with the gear (13); and a cross plate (15) connecting the gear ring (14) and the sand mixing tank (1).

4. The sand mixer for foundry processing according to claim 3, characterized in that: one side of the limiting structure (11) is provided with a pressing surface, the pressing surface is arranged as an arc surface, the side of the limiting structure (11) away from the pressing surface is provided with a flat surface (16), the inner side of the poking plate (6) is provided with a sliding hole, the sliding hole inner wall is symmetrically provided with a sliding groove (20), the end of the mounting rod (7) is symmetrically connected with a stop block (21), and the stop block (21) is slidably arranged in the corresponding sliding groove (20).

5. The sand mixer for foundry processing according to claim 4, characterized in that: the shape of the support (3) is arranged as an arc shape, the side of the support (3) facing the sand is provided with an inclined surface (17) at the bottom, and the bottom of the support (3) is attached to the bottom wall of the sand mixing tank (1). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 6. The sand mixer for foundry processing according to claim 5, characterized in that: The conveying belt (5) is specifically a heavy object conveying belt on a heavy belt conveyor.

7. The sand mixer for foundry processing according to claim 6, characterized in that: The sand mixing tank (1) is provided with an opening on the outer side, and a material blocking plate (19) is arranged in the opening, and the inner side of the material blocking plate (19) is flush with the inner wall of the sand mixing tank (1).

8. The sand mixer for foundry processing according to claim 7, characterized in that: The outer side of the support (3) supports the inner side of the conveying belt (5).

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