Raw material mixing machine for preparing compound sand

Abstract

The utility model discloses a raw material mixing machine for preparing compound sand, which comprises a box body, a feeding box is arranged on the upper surface of the box body, a feeding pipe is connected to the lower surface of the feeding box and penetrates through the surface of the box body, a discharging pipe is arranged on the lower surface of the box body, a first motor is arranged on the upper surface of the box body, and a second motor is arranged on the lower surface of the box body. And a second motor is installed on the lower surface of the box body through a support, a crushing structure is arranged in the box body, and intermittent feeding is achieved while caked raw materials are crushed by the crushing structure through fan blades. According to the raw material mixing machine for preparing the composite sand, the crushing structure is arranged at the tail end of the feeding pipe, the motor is used for driving the fan blades to continuously rotate, the rotating fan blades scatter hardened raw materials entering the crushing box, and the scattered raw materials fall into the device from the opening in the lower portion of the crushing box to be mixed.

Description

Technical Field

[0001] The utility model relates to the technical field of molding sand, in particular to a raw material mixer for preparing composite molding sand. Background Art

[0002] Sand is a common finished raw material for the production of casting molds. Composite sand refers to a granular or powdery material that is physically mixed with dried and sieved aggregates, inorganic gelling materials and additives in a certain proportion. It is transported to the construction site in bags or bulk and can be used directly after adding water and mixing.

[0003] When mixing composite molding sand, the raw materials may become compacted due to long-term accumulation or moisture. The current sand mixer is not equipped with a raw material crushing structure, and the compacted raw materials are easily mixed unevenly during mixing. Utility Model Content

[0004] The utility model aims to provide a raw material mixer for preparing composite molding sand, wherein a raw material crushing structure is connected to the end of a feed pipe, and a rotating fan blade is used to crush the compacted raw materials to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material mixer for preparing composite molding sand, comprising a box body, a feed box is arranged on the upper surface of the box body, a feed pipe is connected to the lower surface of the feed box, and the feed pipe runs through the surface of the box body, a discharge pipe is arranged on the lower surface of the box body, a motor 1 is arranged on the upper surface of the box body, a motor 2 is installed on the lower surface of the box body through a bracket, a crushing structure is arranged inside the box body, and the crushing structure realizes intermittent feeding while crushing the agglomerated raw materials by fan blades.

[0006] Preferably, the crushing structure includes a crushing box, which is mounted on the inner wall of the box body, the output end of the motor 1 is connected to a rotating shaft, and the rotating shaft passes through the surface of the box body and the crushing box, and the outer surface of the rotating shaft is provided with fan blades, baffle 1 is rotatably mounted on the outer surfaces of both sides of the crushing box, the other side of the baffle 1 is connected to a feed pipe, the surface of the baffle 1 is provided with circular holes that match the openings on the side surfaces of the crushing box, the outer surface of the baffle 1 is equidistantly provided with rod-shaped protrusions, the lower surface of the crushing box is rotatably provided with baffle 2, and the baffle 2 is sleeved on the outer surface of the rotating shaft, the surface of the baffle 2 is provided with circular holes that match the openings on the lower surface of the crushing box, and the outer surface of the baffle 2 is symmetrically provided with protrusions.

[0007] By adopting the above technical scheme, the raw materials are fed into the crushing box from the feed pipe, the compacted raw materials are crushed under the action of the rotating blades, and intermittently fall into the device under the action of the rotating baffle plate.

[0008] Preferably, a screening structure is provided below the crushing box, and the screening structure uses a screen plate to screen the crushed raw materials and automatically discharge impurities.

[0009] By adopting the above technical solution, the dispersed raw materials are screened by the sieve plate and the impurities are discharged from the device.

[0010] Preferably, the screening structure includes a sieve plate, the cross-section of the sieve plate is truncated cone-shaped, and an opening is arranged on the surface of the box body and is aligned with the end of the sieve plate; an eccentric wheel is rotatably arranged on the inner wall of the box body, and the eccentric wheel is connected to the rotating shaft through a belt; a push block is arranged on one side of the eccentric wheel, and the push block is slidably connected to the inner wall of the box body; a seesaw is arranged below the push block, the seesaw is rotatably installed on the inner wall of the box body, and a push rod is connected to one end of the seesaw, the lower end of the push rod is in contact with the upper surface of the sieve plate, and a spring is arranged on the upper end of the push rod, and the other end of the spring is fixed to the inner wall of the box body.

[0011] By adopting the above technical solution, a push rod is arranged above the screen plate. When the crushing structure is running, the eccentric wheel is driven to rotate. The eccentric wheel drives the seesaw at the upper end of the push rod to move, so that the push rod continuously hits the screen plate.

[0012] Preferably, a mixing structure is provided below the sieve plate, and the mixing structure utilizes a rotating frame to achieve uniform mixing of the raw materials after impurities are removed.

[0013] By adopting the above technical solution, the mixing structure utilizes the rotating rotating frame and the stirring rod to evenly mix the raw materials.

[0014] Preferably, the mixing structure comprises a rotating frame, the rotating frame is rotatably connected to the output end of the second motor, a spiral plate is rotatably connected to the upper surface of the rotating frame, and a stirring rod is rotatably mounted on the lower surface of the rotating frame.

[0015] By adopting the above technical solution, the rotating frame rotates to drive the spiral plate above and the stirring rod below to evenly mix the raw materials.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the raw material mixer for preparing composite molding sand:

[0017] 1. This device is equipped with a crushing structure at the end of the feed pipe. The motor drives the fan blades to rotate continuously. The rotating fan blades break up the compacted raw materials entering the crushing box. The broken raw materials fall into the device from the opening at the bottom of the crushing box for mixing.

[0018] 2. The device is provided with a baffle plate 1 on the side surface of the crushing box, and an opening is provided on the surface of the baffle plate 1, and a baffle plate 2 is provided on the lower surface of the crushing box, and an opening is also provided on the surface of the baffle plate 2. The baffle plate 2 rotates synchronously with the rotating shaft of the fan blade. When the baffle plate 2 rotates, the rod-shaped protrusion on the outer surface of the baffle plate 2 pushes the baffle plate 1 to rotate, thereby realizing intermittent feeding and intermittent discharging of the device to prevent blockage;

[0019] 3. This device sets a sloped screen plate under the crushing box, the end of the screen plate is aligned with the opening of the box, and a push rod is set above the screen plate. The other end of the push rod is connected to the seesaw, and the seesaw is driven by the eccentric wheel. When the operating shaft of the crushing structure rotates continuously, the shaft drives the eccentric wheel to move, thereby driving the push rod to continuously hit the surface of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0021] Figure 2 This is a side view of the structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the side view structure of the push rod of the utility model.

[0024] In the figure: 1. box body; 2. feed box; 3. feed pipe; 4. discharge pipe; 5. motor 1; 6. motor 2; 7. crushing box; 8. rotating shaft; 9. fan blade; 10. baffle 1; 11. baffle 2; 12. sieve plate; 13. eccentric wheel; 14. push block; 15. seesaw; 16. push rod; 17. spring; 18. rotating frame; 19. spiral plate; 20. stirring rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: a raw material mixer for preparing composite molding sand, including a box body 1, a feed box 2, a feed pipe 3, a discharge pipe 4, a motor 1 5, a motor 2 6, a crushing box 7, a rotating shaft 8, a fan blade 9, a baffle 10, a baffle 2 11, a sieve plate 12, an eccentric wheel 13, a push block 14, a seesaw 15, a push rod 16, a spring 17, a rotating frame 18, a spiral plate 19, and a stirring rod 20.

[0027] This device has the effect of preventing raw materials from hardening and intermittent feeding at the same time, specifically:

[0028] A feed box 2 is arranged on the upper surface of the box body 1, a feed pipe 3 is connected to the lower surface of the feed box 2, and the feed pipe 3 penetrates the surface of the box body 1, a discharge pipe 4 is arranged on the lower surface of the box body 1, a motor 1 5 is arranged on the upper surface of the box body 1, a motor 2 6 is installed on the lower surface of the box body 1 through a bracket, a crushing box 7 is installed on the inner wall of the box body 1, a rotating shaft 8 is connected to the output end of the motor 1 5, and the rotating shaft 8 penetrates the surface of the box body 1 and the crushing box 7, a fan blade 9 is arranged on the outer surface of the rotating shaft 8, and the crushing box 7 Baffle 10 is rotatably mounted on the outer surface of both sides, the other side of baffle 10 is connected to the feed pipe 3, the surface of baffle 10 is provided with a circular hole matching the opening on the side surface of the crushing box 7, the outer surface of baffle 10 is equidistantly provided with rod-shaped protrusions, the lower surface of the crushing box 7 is rotatably provided with baffle 2 11, and baffle 2 11 is sleeved on the outer surface of the rotating shaft 8, the surface of baffle 2 11 is provided with a circular hole matching the opening on the lower surface of the crushing box 7, and the outer surface of baffle 2 11 is symmetrically provided with protrusions;

[0029] like Figure 1 , place the raw material in the feed box 2 above the box body 1, start the motor 5, the motor 5 drives the shaft 8 to rotate, the shaft 8 rotates to drive the fan blades 9 on the surface to rotate, and at the same time, the shaft 8 rotates to drive the baffle 2 11 on the lower surface of the crushing box 7 to rotate. When the baffle 2 11 rotates, Figure 2 The protrusion on the outer surface of baffle plate 11 pushes the protrusion on the outer surface of baffle plate 10, so that baffle plate 11 drives baffle plate 10 to rotate. When the circular hole on the surface of baffle plate 10 is aligned with the opening on the side surface of the crushing box 7, the raw material feed pipe 3 enters the crushing box 7 and is broken up by the action of the fan blades 9. When the circular hole on the surface of baffle plate 11 is aligned with the opening on the lower surface of the crushing box 7, the broken up raw materials fall into the device from below the crushing box 7 for mixing.

[0030] This device has the effect of removing impurities, specifically:

[0031] The cross section of the sieve plate 12 is truncated cone-shaped, and an opening is arranged on the surface of the box body 1 to be aligned with the end of the sieve plate 12. An eccentric wheel 13 is rotatably arranged on the inner wall of the box body 1, and the eccentric wheel 13 is connected to the rotating shaft 8 through a belt. A push block 14 is arranged on one side of the eccentric wheel 13, and the push block 14 is slidably connected to the inner wall of the box body 1. A seesaw 15 is arranged below the push block 14, and the seesaw 15 is rotatably installed on the inner wall of the box body 1, and a push rod 16 is connected to one end of the seesaw 15, and the lower end of the push rod 16 contacts the upper surface of the sieve plate 12, and a spring 17 is arranged on the upper end of the push rod 16, and the other end of the spring 17 is fixed to the inner wall of the box body 1, a rotating frame 18 is rotatably connected to the output end of the motor 2 6, a spiral plate 19 is rotatably connected to the upper surface of the rotating frame 18, and a stirring rod 20 is rotatably installed on the lower surface of the rotating frame 18;

[0032] like Figure 1 , the raw materials falling from the bottom of the crushing box 7 fall onto the surface of the screen plate 12, such as Figure 3 When the crushing structure is in operation, the rotating shaft 8 drives the eccentric wheel 13 to rotate continuously, and the rotation of the eccentric wheel 13 generates a force on the push block 14, such as Figure 1 The eccentric wheel 13 pushes the sloped push block 14, so that the push block 14 slides downward on the inner wall of the box body 1. Figure 4 , the push block 14 pushes the right side of the seesaw 15 downward, causing the seesaw 15 to rotate clockwise, the right side of the seesaw 15 drops, and the left side drives the push rod 16 to move upward, and the push rod 16 compresses the spring 17 upward. When the push block 14 loses the force of the eccentric wheel 13, under the action of the spring 17, the push rod 16 drops and hits the surface of the sieve plate 12. At the same time, the push rod 16 drives the left side of the seesaw 15 to drop, causing the right side of the seesaw 15 to rise and drive the push block 14 back to its original position. The raw materials are screened by the sieve plate 12 and fall below, while the impurities are discharged from the inclined surface of the sieve plate 12. The device starts the motor 2 6, and the motor 2 6 drives the rotating frame 18 to rotate. The rotating frame 18 drives the spiral plate 19 and the stirring rod 20 to rotate, and the raw materials falling from the sieve plate 12 are stirred, and the stirred raw materials are discharged through the discharge pipe 4.

[0033] Working principle: When using the raw material mixer for preparing composite molding sand, start the motor 5, the motor 5 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the fan blade 9 and the baffle plate 11 to rotate during the rotation of the fan blade 9, and the compacted raw materials are broken up during the rotation of the baffle plate 11, and the baffle plate 10 is driven to rotate during the rotation of the baffle plate 11. When the baffle plate 10 aligns the opening of the side surface of the crushing box 7, the raw materials enter the crushing box 7 and are broken up. When the baffle plate 11 aligns the opening of the lower surface of the crushing box 7, the raw materials fall into the lower part of the device. The mixing is carried out to realize intermittent feeding and discharging. The rotation of the rotating shaft 8 drives the eccentric wheel 13 to rotate. The rotation of the eccentric wheel 13 generates a force on the push block 14. The push block 14 pushes the seesaw 15, thereby driving the push rod 16 to hit the sieve plate 12, and the impurities in the raw materials are discharged from the opening on the surface of the box body 1. The motor 2 6 is started, and the motor 2 6 drives the rotating frame 18 to rotate. The rotating frame 18 drives the spiral plate 19 and the stirring rod 20 to rotate to mix the raw materials. The mixed raw materials are discharged from the discharge pipe 4, which increases the overall practicality.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material mixer for preparing composite molding sand, comprising a box (1), a feed box (2) is arranged on the upper surface of the box (1), a feed pipe (3) is connected to the lower surface of the feed box (2), and the feed pipe (3) passes through the surface of the box (1), a discharge pipe (4) is arranged on the lower surface of the box (1), a motor 1 (5) is arranged on the upper surface of the box (1), and a motor 2 (6) is installed on the lower surface of the box (1) through a bracket, characterized in that: A crushing structure is arranged inside the box (1), and the crushing structure uses fan blades (9) to crush the agglomerated raw materials while achieving intermittent feeding.

2. The raw material mixer for preparing composite molding sand according to claim 1, characterized in that: The crushing structure comprises a crushing box (7), wherein the crushing box (7) is mounted on the inner wall of the box body (1), the output end of the motor 1 (5) is connected to a rotating shaft (8), and the rotating shaft (8) passes through the surface of the box body (1) and the crushing box (7), and the outer surface of the rotating shaft (8) is provided with fan blades (9), and baffles 1 (10) are rotatably mounted on the outer surfaces of both sides of the crushing box (7), and the other side of the baffle 1 (10) is connected to the feed pipe (3), and the surface of the baffle 1 (10) is provided with circular holes that match the openings on the side surfaces of the crushing box (7), and the outer surface of the baffle 1 (10) is equidistantly provided with rod-shaped protrusions, and the lower surface of the crushing box (7) is rotatably provided with baffle 2 (11), and the baffle 2 (11) is sleeved on the outer surface of the rotating shaft (8), and the surface of the baffle 2 (11) is provided with circular holes that match the openings on the lower surface of the crushing box (7), and the outer surface of the baffle 2 (11) is symmetrically provided with protrusions.

3. The raw material mixer for preparing composite molding sand according to claim 2, characterized in that: A screening structure is provided below the crushing box (7), and the screening structure uses a screen plate (12) to screen the crushed raw materials and automatically discharge impurities.

4. The raw material mixer for preparing composite molding sand according to claim 3, characterized in that: The screening structure comprises a screen plate (12), the cross section of the screen plate (12) is truncated cone-shaped, and an opening is arranged on the surface of the box (1) and is aligned with the end of the screen plate (12); an eccentric wheel (13) is rotatably arranged on the inner wall of the box (1), and the eccentric wheel (13) is connected to the rotating shaft (8) through a belt; a push block (14) is arranged on one side of the eccentric wheel (13), and the push block (14) is slidably connected to the inner wall of the box (1); a seesaw (15) is arranged below the push block (14), and the seesaw (15) is rotatably mounted on the inner wall of the box (1), and one end of the seesaw (15) is connected to a push rod (16), the lower end of the push rod (16) is in contact with the upper surface of the screen plate (12), and the upper end of the push rod (16) is provided with a spring (17), and the other end of the spring (17) is fixed to the inner wall of the box (1).

5. The raw material mixer for preparing composite molding sand according to claim 3, characterized in that: A mixing structure is provided below the sieve plate (12), and the mixing structure utilizes a rotating frame (18) to achieve uniform mixing of the raw materials after impurities are removed.

6. A raw material mixer for preparing composite molding sand according to claim 5, characterized in that: The mixing structure comprises a rotating frame (18), the rotating frame (18) is rotatably connected to the output end of the second motor (6), the upper surface of the rotating frame (18) is rotatably connected to a spiral plate (19), and the lower surface of the rotating frame (18) is rotatably mounted with a stirring rod (20).

Images