A casting material weighing and mixing device

Abstract

The utility model discloses a casting material weighing mixing device relates to casting material weighing mixing technical field, including the storage box, the periphery fixed mounting of storage box has the fixed frame, the bottom fixed mounting of fixed frame is close to the edge place and has a plurality of groups pressure sensor, the pressure sensor fixed mounting is on the fixed frame, the bottom fixed mounting of fixed frame has the support frame, the below fixed mounting of support frame has the fixed plate, rotates and is installed the sand mixing barrel on the fixed plate, is provided with the drive mechanism on the fixed plate and sets up the installation. The utility model design scheme is provided with the design of pressure sensor between fixed frame and fixed frame, installs the baffle in the material guide groove of storage box bottom end, closes the baffle when feeding, is weighed to storage box through pressure sensor, after the raw material weight in storage box reaches the set value, opens the baffle and makes the raw material enter to the sand mixing barrel and carries out the mixing stirring to guarantee the consistency of sand quality.

Description

Technical Field

[0001] This utility model relates to the field of casting material weighing and mixing technology, and in particular to a casting material weighing and mixing device. Background Technology

[0002] Foundry materials mainly include molten materials such as pig iron, scrap steel, and recycled materials, as well as molding materials such as foundry sand. Among them, foundry sand, due to its good formability and permeability, can ensure the accuracy of the casting contour and the stability of the dimensions, and avoid defects such as porosity and shrinkage cavities inside the casting. Furthermore, foundry sand has high thermal stability and will not deform or melt during the casting process, thus ensuring the dimensional accuracy and surface quality of the casting. It also has advantages such as easy demolding, low cost, and environmental friendliness, making foundry sand the most widely used casting molding material.

[0003] To produce molding sand, binder raw materials need to be added to the molding sand mixer in a certain proportion and mixed with sand to complete the preparation of molding sand. However, the existing molding sand mixer cannot weigh the raw materials when adding sand and binder, resulting in certain differences in the quality of different batches of molding sand. Therefore, a casting material weighing and mixing device is proposed to address the above problem. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, this utility model provides a casting material weighing and mixing device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a casting material weighing and mixing device, including a storage box, a fixed frame fixedly installed on the periphery of the storage box, a number of pressure sensors fixedly installed near the bottom edge of the fixed frame, the pressure sensors fixedly installed on a fixed frame, a support frame fixedly installed at the bottom of the fixed frame, a fixed plate fixedly installed below the support frame, a sand mixing bucket rotatably installed on the fixed plate, and a driving mechanism for driving the sand mixing bucket is provided on the fixed plate.

[0006] Furthermore, the top of the storage box is a rectangular structure, and the fixing frame is fixedly installed at the bottom of the side wall of the storage box. Preferably, the number of pressure sensors is set to four groups, and each group of pressure sensors is fixedly installed at the middle of the side of the fixing frame. The bottom of the storage box is provided with a guide groove, which is gradually inclined towards the outside of the storage box from top to bottom. The bottom of the guide groove is provided with a discharge port. The support frame has a feed port corresponding to the discharge port. A guide tube is inserted into the feed port and the guide tube is fixedly installed at the bottom of the discharge port.

[0007] Furthermore, a baffle plate is provided inside the guide trough, and a connecting rod is fixedly installed on the top of the baffle plate. The connecting rod is rotatably installed on the front and rear side walls of the guide trough. An mounting plate is fixedly installed on the front side wall of the guide trough, and a hydraulic cylinder is hingedly installed on the mounting plate. A connecting seat is fixedly installed on the power output end of the hydraulic cylinder, and a drive rod is hingedly installed on the connecting seat. The end of the drive rod away from the hydraulic cylinder is fixedly connected to the connecting rod.

[0008] Furthermore, a connecting ring is fixedly installed on the side wall of the sand mixing drum, and the connecting ring is rotatably mounted on the fixed plate. The driving mechanism includes a first motor, which is fixedly installed on the top of the fixed plate. A bevel gear is fixedly installed on the power output end of the first motor. A bevel gear ring that meshes with the bevel gear is fixedly installed on the upper side wall of the sand mixing drum. A stirring shaft is fixedly installed in the middle of the bottom end of the support frame, and several sets of stirring rods are fixedly installed on the side wall of the stirring shaft.

[0009] Furthermore, a baffle ring is provided on the outer periphery of the top of the sand mixing bucket, and the baffle ring is fixedly installed at the bottom of the support frame.

[0010] Furthermore, columns are fixedly installed at the bottom of the fixed plate near the four ends, and crossbars are fixedly installed between each group of columns. A discharge port is opened at the bottom of the sand mixing bucket, and a sealing valve is provided around the bottom of the discharge port. Several sets of side support rods are fixedly installed on the side wall of the sealing valve, preferably four sets. The end of each set of side support rods away from the sealing valve is fixedly installed on the crossbar. A valve cover is rotatably installed at the bottom of the sealing valve, and a second motor is fixedly installed on the rear side wall of the sealing valve. The power output shaft of the second motor is fixedly connected to the rotating shaft of the valve cover.

[0011] The beneficial effects of this utility model are that the design scheme of this utility model is to set a pressure sensor between the fixed frame and the fixed bracket, and to install a baffle plate in the guide trough at the bottom of the storage box. When adding material, the baffle plate is closed, and the pressure sensor weighs the storage box. After the weight of the raw material in the storage box reaches the set value, the baffle plate is opened to allow the raw material to enter the mixing bucket for mixing and stirring, thereby ensuring the consistency of molding sand quality. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is the front view of the present invention;

[0015] Figure 3 This is the left view of the present invention;

[0016] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0017] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure along the BB direction.

[0018] In the diagram: 1. Storage bin, 2. Fixing frame, 3. Pressure sensor, 4. Support frame, 5. Fixing plate, 6. Mixing bucket, 7. Guide chute, 8. Discharge port, 9. Feed inlet, 10. Guide pipe, 11. Baffle plate, 12. Connecting rod, 13. Mounting plate, 14. Hydraulic cylinder, 15. Connecting seat, 16. Drive rod, 17. Connecting ring, 18. First motor, 19. Bevel gear, 20. Bevel gear ring, 21. Column, 22. Crossbar, 23. Discharge port, 24. Sealing valve, 25. Side support rod, 26. Valve cover, 27. Second motor, 28. Stirring shaft, 29. Stirring rod, 30. Baffle ring, 31. Fixing frame. Detailed Implementation

[0019] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0020] according to Figure 1-5 As shown, a casting material weighing and mixing device includes a storage box 1, a fixed frame 2 is fixedly installed on the periphery of the storage box 1, a number of pressure sensors 3 are fixedly installed near the bottom edge of the fixed frame 2, the pressure sensors 3 are fixedly installed on a fixed bracket 31, a support frame 4 is fixedly installed at the bottom of the fixed bracket 31, a fixed plate 5 is fixedly installed below the support frame 4, a sand mixing bucket 6 is rotatably installed on the fixed plate 5, and a drive mechanism for driving the sand mixing bucket 6 is provided on the fixed plate 5.

[0021] In this embodiment, the top of the storage box 1 is a rectangular structure, and the fixing frame 2 is fixedly installed at the bottom of the side wall of the storage box 1. Preferably, the number of pressure sensors 3 is set to four groups, and each group of pressure sensors 3 is fixedly installed at the middle of the side of the fixing frame 2. The bottom of the storage box 1 is provided with a guide groove 7, which is gradually inclined towards the outside of the storage box 1 from top to bottom. The bottom of the guide groove 7 is provided with a discharge port 8, and the support frame 4 is provided with a feed port 9 corresponding to the discharge port 8. A guide tube 10 is inserted into the feed port 9, and the guide tube 10 is fixedly installed at the bottom of the discharge port 8.

[0022] In this embodiment, a baffle plate 11 is provided inside the guide trough 7. A connecting rod 12 is fixedly installed on the top of the baffle plate 11. The connecting rod 12 is rotatably installed on the front and rear side walls of the guide trough 7. An mounting plate 13 is fixedly installed on the front side wall of the guide trough 7. A hydraulic cylinder 14 is hingedly installed on the mounting plate 13. A connecting seat 15 is fixedly installed on the power output end of the hydraulic cylinder 14. A drive rod 16 is hingedly installed on the connecting seat 15. The end of the drive rod 16 away from the hydraulic cylinder 14 is fixedly connected to the connecting rod 12. The hydraulic cylinder 14 pushes the drive rod 16, and the drive rod 16 drives the baffle plate 11 to rotate, thereby realizing the opening and closing of the guide trough 7.

[0023] In this embodiment, a connecting ring 17 is fixedly installed on the side wall of the sand mixing drum 6. The connecting ring 17 is rotatably installed on the fixed plate 5. The driving mechanism includes a first motor 18, which is fixedly installed on the top of the fixed plate 5. A bevel gear 19 is fixedly installed on the power output end of the first motor 18. A bevel gear ring 20 that meshes with the bevel gear 19 is fixedly installed on the upper side wall of the sand mixing drum 6. A stirring shaft 28 is fixedly installed in the middle of the bottom end of the support frame 4. Several sets of stirring rods 29 are fixedly installed on the side wall of the stirring shaft 28. The bevel gear 19 is driven to rotate by the first motor 18. Under the cooperation of the bevel gear 19 and the bevel gear ring 20, the sand mixing drum 6 rotates on the fixed plate 5. The raw materials are mixed and stirred by the cooperation of the sand mixing drum 6 and the stirring shaft 28.

[0024] In this embodiment, a baffle ring 30 is provided on the outer periphery of the top of the sand mixing bucket 6. The baffle ring 30 is fixedly installed at the bottom of the support frame 4. The baffle ring 30 and the sand mixing bucket 6 are installed together with a clearance fit. After installation, there is an installation gap between the sand mixing bucket 6 and the bottom surface of the support frame 4. The baffle ring 30 covers the gap to prevent sand and other raw materials from leaking out from the gap.

[0025] In this embodiment, columns 21 are fixedly installed at the bottom of the fixed plate 5 near the four ends. A crossbar 22 is fixedly installed between each group of columns 21. A discharge port 23 is opened at the bottom of the sand mixing bucket 6. A sealing valve 24 is provided around the bottom of the discharge port 23. Several sets of side support rods 25 are fixedly installed on the side wall of the sealing valve 24. Preferably, there are four sets of side support rods 25. The end of each set of side support rods 25 away from the sealing valve 24 is fixedly installed on the crossbar 22. A valve cover 26 is rotatably installed at the bottom of the sealing valve 24. A second motor 27 is fixedly installed on the rear side wall of the sealing valve 24 through a motor bracket. The power output shaft of the second motor 27 is fixedly connected to the rotating shaft of the valve cover 26. The sealing valve 24 and the sand mixing bucket 6 are fitted with a clearance. The sealing valve 24 is fixed at the bottom of the sand mixing bucket 6 to block the raw materials. After the raw materials are mixed and stirred, the second motor 27 drives the valve cover 26 to flip down and open, so that the raw materials can be discharged from the sand mixing bucket 6.

[0026] In use, when feeding materials, the push rod of the hydraulic cylinder 14 retracts, causing the baffle plate 11 to close, allowing the raw materials to accumulate in the storage tank 1. The pressure sensor 3 weighs the raw materials in the storage tank 1. Once the weight of the raw materials in the storage tank 1 reaches the set value, the push rod of the hydraulic cylinder 14 extends, causing the baffle plate 11 to open, allowing the raw materials to enter the mixing drum 6. Driven by the first motor 18, the mixing drum 6 rotates, and the mixing drum 6, in conjunction with the stirring shaft 28, mixes and stirs the raw materials, thereby ensuring the consistency of the molding sand quality.

[0027] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A casting material weighing and mixing device, comprising a storage tank (1), characterized in that: A fixed frame (2) is fixedly installed on the periphery of the storage box (1). Several pressure sensors (3) are fixedly installed near the bottom edge of the fixed frame (2). The pressure sensors (3) are fixedly installed on the fixed frame (31). A support frame (4) is fixedly installed at the bottom of the fixed frame (31). A fixed plate (5) is fixedly installed below the support frame (4). A sand mixing bucket (6) is rotatably installed on the fixed plate (5). A drive mechanism for driving the sand mixing bucket (6) is provided on the fixed plate (5).

2. The casting material weighing and mixing device according to claim 1, characterized in that, The top of the storage box (1) is a rectangular structure. The fixed frame (2) is fixedly installed on the bottom of the side wall of the storage box (1). Each pressure sensor (3) is fixedly installed in the middle of the side of the fixed frame (2). The bottom of the storage box (1) is provided with a guide groove (7). The guide groove (7) is gradually inclined to the outside of the storage box (1) from top to bottom. The bottom of the guide groove (7) is provided with a discharge port (8). The support frame (4) is provided with a feed port (9) corresponding to the discharge port (8). A guide tube (10) is inserted into the feed port (9). The guide tube (10) is fixedly installed at the bottom of the discharge port (8).

3. The casting material weighing and mixing device according to claim 2, characterized in that, The guide trough (7) is provided with a baffle plate (11). A connecting rod (12) is fixedly installed on the top of the baffle plate (11). The connecting rod (12) is rotatably installed on the front and rear side walls of the guide trough (7). An installation plate (13) is fixedly installed on the front side wall of the guide trough (7). A hydraulic cylinder (14) is hinged on the installation plate (13). A connecting seat (15) is fixedly installed on the power output end of the hydraulic cylinder (14). A drive rod (16) is hinged on the connecting seat (15). The end of the drive rod (16) away from the hydraulic cylinder (14) is fixedly connected to the connecting rod (12).

4. The casting material weighing and mixing device according to claim 1, characterized in that, A connecting ring (17) is fixedly installed on the side wall of the sand mixing bucket (6). The connecting ring (17) is rotatably installed on the fixed plate (5). The driving mechanism includes a first motor (18). The first motor (18) is fixedly installed on the top of the fixed plate (5). A bevel gear (19) is fixedly installed on the power output end of the first motor (18). A bevel gear ring (20) that meshes with the bevel gear (19) is fixedly installed on the upper side wall of the sand mixing bucket (6). A stirring shaft (28) is fixedly installed in the middle of the bottom end of the support frame (4). Several sets of stirring rods (29) are fixedly installed on the side wall of the stirring shaft (28).

5. The casting material weighing and mixing device according to claim 4, characterized in that, The top periphery of the mixing bucket (6) is provided with a baffle ring (30), which is fixedly installed at the bottom of the support frame (4).

6. The casting material weighing and mixing device according to claim 4, characterized in that, The bottom of the fixed plate (5) is fixedly installed with columns (21) near the four ends. A crossbar (22) is fixedly installed between each set of columns (21). The bottom of the sand mixing bucket (6) is provided with a discharge port (23). A sealing valve (24) is provided around the bottom of the discharge port (23). Several sets of side support rods (25) are fixedly installed on the side wall of the sealing valve (24). The end of each set of side support rods (25) away from the sealing valve (24) is fixedly installed on the crossbar (22). A valve cover (26) is rotatably installed at the bottom of the sealing valve (24). A second motor (27) is fixedly installed on the rear side wall of the sealing valve (24). The power output shaft of the second motor (27) is fixedly connected to the rotating shaft of the valve cover (26).

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