Hanging type movable sand mixer

Abstract

The utility model relates to a hanging type movable sand mixer, which belongs to the technical field of sand mixers, and comprises a sand mixing mechanism, a driving mechanism, a hanging mechanism and a moving mechanism, the hanging mechanism is respectively connected with the sand mixing mechanism and the moving mechanism, the moving mechanism is used for driving the sand mixing mechanism to walk, the sand mixing mechanism comprises a sand mixing groove, a sand scraping plate and an auger sheet, and the auger sheet is connected with the sand mixing groove. The end part of the auger sheet is in transmission connection with a driving mechanism; the auger piece is used for stirring and conveying molding sand at the bottom of the sand mixing tank, a curing agent and the molding sand are fully mixed, the sand scraping plate is arranged on the rotating shaft face at the upper end of the auger piece, it is guaranteed that the sand mixing process is more uniform and efficient, and the sand mixing efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand mixers, specifically relating to a suspended mobile sand mixer. Background Technology

[0002] A sand mixer is used to uniformly mix sand with liquid curing agents and resins, ensuring that the curing agents and resins are evenly distributed and effectively coat the surface of the sand particles, forming coated molding sand suitable for mold making. In traditional sand mixing operations, sand mixers typically employ a fixed or semi-fixed structure, with their mixing and drive mechanisms fixed to the ground or a specific location. While this structure is simple, it has several drawbacks in practical applications: First, once the sand mixer is fixed in place, its operating range is limited, preventing flexible movement and resulting in low mixing efficiency; second, manual material handling is required during the mixing process, increasing labor intensity and operating costs; and third, fixed sand mixers occupy a large area, hindering the rational use of site resources.

[0003] For example, Chinese patent CN211276418U discloses a novel mobile sand mixer for mold making, including a mobile sand mixer body and a screening box. The screening box is mainly used to screen the sand material and uses a vibrating motor for vibration mixing. Due to the relationship between the mass and density of the molding sand and the curing agent, the sand mainly settles at the bottom of the hopper, resulting in uneven mixing. This prevents the curing agent from better covering the surface of the molding sand and thus fails to provide good protection, resulting in poor sand mixing effect. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A suspended mobile sand mixer includes a sand mixing mechanism, a drive mechanism, a suspension mechanism, and a moving mechanism. The suspension mechanism is connected to both the sand mixing mechanism and the moving mechanism. The moving mechanism is used to drive the sand mixing mechanism to move. The sand mixing mechanism includes a sand mixing trough, a scraper, and an auger blade. The end of the auger blade is connected to the drive mechanism for transmission.

[0006] Furthermore, the drive mechanism includes a drive motor, a reduction mechanism, and a rotating shaft. The two sides of the reduction mechanism are respectively connected to the drive motor and the rotating shaft for transmission. The auger blade is connected to the rotating shaft coupling, and the scraper is fixedly connected to the end of the auger blade.

[0007] Furthermore, the scraper blades are in three sets, which are evenly distributed on the rotating shaft surface of the auger blades.

[0008] Furthermore, the moving mechanism includes a walking motor, a gear, a rack, and a guide rail. The gear is fixedly connected to the output shaft of the walking motor, and the gear meshes with the rack. The rack is fixed to the upper end of the guide rail. There are two sets of guide rails, and a hanging mechanism is provided between the two sets of guide rails. The hanging mechanism is slidably connected to the guide rail.

[0009] Furthermore, the hanging mechanism includes a boom, a first baffle, a clamping arm, and a second baffle connected in sequence. Two sets of guide rails are respectively arranged on the upper and lower sides of the clamping arm. The clamping arm is slidably connected to the guide rails, the second baffle is rollingly connected to the vertical surface of the guide rails, and the boom is fixedly connected to the sand mixing tank.

[0010] Furthermore, the second baffle is provided with grooves at its upper and lower ends, and a roller is provided in the groove. The roller is connected to the bearing of the second baffle, and the wheel surface of the roller is in rolling connection with the vertical surface of the guide rail.

[0011] Furthermore, a sand discharge mechanism is provided below the sand mixing tank. The sand discharge mechanism includes a sand gate and a support. There are two sets of supports, which are respectively set at both ends of the sand gate. One end of the sand gate is hinged to the support, and the other end of the sand gate is provided with a protruding plate. The protruding plate is inserted and connected to the support on the other side. The upper part of the sand mixing tank is connected to the silo.

[0012] Furthermore, a top rod is fixed to the end of the sand gate, and the other end of the top rod is hinged to the bracket; a pin is provided on the bracket on the side corresponding to the convex plate, and the pin is used to insert the convex plate between the pin and the sand mixing tank to seal the outlet of the sand mixing tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a hanging mobile sand mixer. In this utility model, the auger is used to stir and transport the molding sand at the bottom of the mixing tank, and fully mix the curing agent and molding sand. The scraper is set on the rotating shaft surface at the upper end of the auger to ensure that the sand mixing process is more uniform and efficient, and significantly improves the sand mixing efficiency.

[0015] 2. This utility model provides a suspended mobile sand mixer. The sand mixer of this utility model is equipped with a suspension mechanism, which allows the sand mixing mechanism to move flexibly on the guide rail. It can move flexibly and adapt to different working scenarios, and is suitable for working conditions that require frequent changes of work positions or where space is limited, which greatly improves the applicability and flexibility of the equipment.

[0016] 3. This utility model provides a suspended mobile sand mixer. This utility model is equipped with a sand discharge mechanism. This design makes the sand discharge process more controllable and avoids sand waste and environmental pollution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the device of this utility model;

[0019] Figure 3 This is a cross-sectional view of the device of this utility model.

[0020] Figure 4 This is a bottom view of the structure of the device of this utility model.

[0021] In the diagram: 1. Sand mixing mechanism, 11. Sand mixing trough, 12. Scraper blade, 13. Screwdriver blade, 2. Drive mechanism, 21. Drive motor, 22. Reduction mechanism, 23. Rotating shaft, 3. Hanging mechanism, 31. Lifting arm, 32. First baffle, 33. Clamping arm, 34. Second baffle, 35. Groove, 36. Roller, 4. Moving mechanism, 41. Travel motor, 42. Gear, 43. Rack, 44. Guide rail, 5. Hopper, 6. Sand discharge mechanism, 61. Sand gate, 62. Support, 63. Pin, 64. Protruding plate, 65. Top rod. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0023] like Figures 1 to 4 As shown, this utility model provides a suspended mobile sand mixer, including a sand mixing mechanism 1, a drive mechanism 2, a suspension mechanism 3, and a moving mechanism 4. The drive mechanism 2 is equipped with a motor, a reducer, and a transmission system, providing hybrid power. The suspension mechanism 3 is connected to both the sand mixing mechanism 1 and the moving mechanism 4. The moving mechanism 4 drives the sand mixing mechanism 1 to move. The sand mixing mechanism 1 includes a sand mixing trough 11, a scraper 12, and an auger 13. The end of the auger 13 is connected to the drive mechanism 2 for transmission. In use, the auger 13 uses reverse conveying. The rotating auger 13 conveys the mixed sand from the bottom of the sand mixing trough 11 to the top, and then the scraper 12 at the top disperses the mixed sand around the sand mixing trough 11, achieving thorough mixing of the sand. In this embodiment of the utility model, an auger stirring blade is provided to stir and convey the sand in reverse in the sand mixing trough 11, achieving efficient mixing of sand and curing agent. In this embodiment of the invention, the drive mechanism 2 and the moving mechanism 4 are respectively connected to the PLC controller and the manual operation panel, and are used to control and adjust the mixing time, stirring speed and moving commands, thereby improving the automation control level of the device.

[0024] The drive mechanism 2 includes a drive motor 21, a reduction mechanism 22, and a rotating shaft 23. The reduction mechanism 22 is connected to the drive motor 21 and the rotating shaft 23 on both sides, respectively. The auger blade 13 is connected to the rotating shaft 23 via a coupling, and the scraper plate 12 is fixedly connected to the end of the auger blade 13. In this embodiment, the scraper plate 12 and the auger blade 13 are made of wear-resistant materials, such as high-manganese steel blades, to extend the service life of the device.

[0025] The scraper blades 12 are in three sets, evenly distributed on the rotating shaft surface of the auger blades 13. The scraper blades are set on the top rotating shaft surface of the auger blades 13. By rotating the scraper blades, the mixed sand conveyed from the bottom of the auger blades 13 is scraped to both sides. The angle and rotation speed of the auger blades and scraper blades are optimized to ensure that the mixed sand is mixed without dead corners.

[0026] The moving mechanism 4 includes a walking motor 41, a gear 42, a rack 43, and a guide rail 44. The gear 42 is fixedly connected to the output shaft of the walking motor 41, and the gear 42 meshes with the rack 43. The rack 43 is fixed to the upper end of the guide rail 44. There are two sets of guide rails 44, and a hanging mechanism 3 is provided between the two sets of guide rails 44. The hanging mechanism 3 is slidably connected to the guide rails 44. The walking motor 41 is mounted on the clamping arm 33 of the hanging mechanism 3 via a bracket. The gear 42 is assembled at the end of its output shaft, and the gear 42 meshes with the rack 43. The walking motor 41 is a servo motor, and the controller realizes precise start-stop and stroke control of the sand mixing mechanism 1. In this embodiment of the invention, the equipment is hoisted to the lower part of the hopper by the hanging mechanism, saving ground space and facilitating lateral movement. In this embodiment of the invention, flexible transfer along the guide rail is supported, making movement convenient and adaptable to multi-station requirements.

[0027] The hanging mechanism 3 includes a boom 31, a first baffle 32, a clamping arm 33, and a second baffle 34 connected in sequence. Two sets of guide rails 44 are respectively arranged on the upper and lower sides of the clamping arm 33. The clamping arm 33 is slidably connected to the guide rail 44. The second baffle 34 is rotatably connected to the vertical surface of the guide rail 44. The boom 31 is fixedly connected to the sand mixing tank 11.

[0028] The second baffle 34 has grooves 35 at its upper and lower ends, and rollers 36 are installed in the grooves 35. The rollers 36 are connected to the second baffle 34 by bearings, and the wheel surfaces of the rollers 36 are in rolling contact with the vertical surface of the guide rail. The clamping arm 33 is made of H-beam steel, and its upper and lower sides are slidably connected to the guide rail 44 via rollers. The second baffle 34 is equipped with four sets of rollers 36 through the grooves 35. The rollers 36 are made of nylon-coated wheels and are in rolling contact with the vertical surface of the guide rail 44, effectively dispersing lateral loads. The lower end of the boom 31 is fixed to the sand mixing tank 11 by a flange, and the upper end passes through the first baffle 32 and is welded to the clamping arm 33 to form a stable three-point suspension structure.

[0029] A sand discharge mechanism 6 is provided below the sand mixing tank 11. The sand discharge mechanism 6 includes a sand gate 61 and a support 62. There are two sets of supports 62, which are respectively set at both ends of the sand gate 61. One end of the sand gate 61 is hinged to the support 62, and the other end of the sand gate 61 is provided with a protruding plate 64. The protruding plate 64 is inserted into the support 62 on the other side. The upper part of the sand mixing tank 11 is connected to the hopper 5. When closed, the protruding plate 64 is inserted into the slot of the pin 63 of the support 62. When opened, the pin 63 is pulled to release the lock, and the sand gate 61 rotates and flips down around the hinge under the action of gravity. The top rod 65 is hinged to the sand gate 61 and the support 62 at both ends, which is used to limit the opening and closing angle of the sand gate (0°~90°) to prevent the sand from pouring out too violently.

[0030] The end of the sand gate 61 is fixed with a top rod 65, and the other end of the top rod 65 is hinged to the bracket 62; a pin 63 is provided on the bracket 62 on the side corresponding to the convex plate 64, and the pin 63 is used to insert the convex plate 64 between the pin 63 and the sand mixing tank 11 to seal the outlet of the sand mixing tank 11.

[0031] The working principle of this utility model is as follows: First, sand, curing agent and other raw materials are put into the sand mixing tank in proportion; second, the drive mechanism 2 is started and the auger plate rotates at high speed to achieve uniform mixing of sand and curing agent; finally, after the sand and curing agent are mixed, the mixed sand is moved to the designated position for unloading through the hanging mechanism 3.

[0032] Of course, the above embodiments are not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A suspended mobile sand mixer, characterized in that: It includes a sand mixing mechanism (1), a driving mechanism (2), a hanging mechanism (3) and a moving mechanism (4). The hanging mechanism (3) is connected to the sand mixing mechanism (1) and the moving mechanism (4) respectively. The moving mechanism (4) is used to drive the sand mixing mechanism (1) to move. The sand mixing mechanism (1) includes a sand mixing trough (11), a sand scraper (12) and an auger plate (13). The end of the auger plate (13) is connected to the driving mechanism (2) for transmission.

2. The suspended mobile sand mixer according to claim 1, characterized in that: The drive mechanism (2) includes a drive motor (21), a reduction mechanism (22) and a rotating shaft (23). The two sides of the reduction mechanism (22) are respectively connected to the drive motor (21) and the rotating shaft (23). The auger plate (13) is connected to the rotating shaft (23) by a coupling. The scraper plate (12) is fixedly connected to the end of the auger plate (13).

3. The suspended mobile sand mixer according to claim 2, characterized in that: The scraper blades (12) are in three groups, which are evenly distributed on the rotating shaft surface of the auger blades (13).

4. The suspended mobile sand mixer according to claim 1, characterized in that: The moving mechanism (4) includes a walking motor (41), a gear (42), a rack (43) and a guide rail (44). The gear (42) is fixedly connected to the output shaft of the walking motor (41). The gear (42) is meshed with the rack (43). The rack (43) is fixed to the upper end of the guide rail (44). There are two sets of guide rails (44). A hanging mechanism (3) is provided between the two sets of guide rails (44). The hanging mechanism (3) is slidably connected to the guide rail (44).

5. The suspended mobile sand mixer according to claim 4, characterized in that: The hanging mechanism (3) includes a boom (31), a first baffle (32), a clamping arm (33), and a second baffle (34) connected in sequence. Two sets of guide rails (44) are respectively arranged on the upper and lower sides of the clamping arm (33). The clamping arm (33) is slidably connected to the guide rail (44). The second baffle (34) is slidably connected to the vertical surface of the guide rail (44). The boom (31) is fixedly connected to the sand mixing tank (11).

6. The suspended mobile sand mixer according to claim 5, characterized in that: The second baffle (34) has grooves (35) at its upper and lower ends respectively. A roller (36) is provided in the groove (35). The roller (36) is connected to the second baffle (34) by a bearing. The wheel surface of the roller (36) is in rolling connection with the vertical surface of the guide rail.

7. The suspended mobile sand mixer according to claim 1, characterized in that: A sand discharge mechanism (6) is provided below the sand mixing tank (11). The sand discharge mechanism (6) includes a sand gate (61) and a support (62). There are two sets of supports (62), which are respectively set at both ends of the sand gate (61). One end of the sand gate (61) is hinged to the support (62), and the other end of the sand gate (61) is provided with a protruding plate (64). The protruding plate (64) is inserted and connected to the other side of the support (62). The sand mixing tank (11) is connected to the silo (5) above.

8. The suspended mobile sand mixer according to claim 7, characterized in that: The end of the sand gate (61) is fixed with a top rod (65), and the other end of the top rod (65) is hinged to the bracket (62); a pin (63) is provided on the bracket (62) on the side corresponding to the convex plate (64), and the pin (63) is used to insert the convex plate (64) between the pin (63) and the sand mixing tank (11) to seal the outlet of the sand mixing tank (11).

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