Rapid sand mixing equipment for casting

Abstract

The utility model relates to the technical field of casting sand mulling, in particular to quick sand mulling equipment for casting, which comprises a bottom plate, a sand mulling mechanism capable of mulling sand and a shaking mechanism, the sand mulling mechanism is positioned above the bottom plate and comprises a U-shaped frame, the bottom ends of two arms of the U-shaped frame are fixedly connected with the top surface of the bottom plate, and the shaking mechanism is positioned above the bottom plate. A frame body is arranged between two arms of the U-shaped frame, and supporting rods are fixedly connected to the middles of the two opposite sides of the frame body. According to the utility model, materials are put into the barrel body, then the barrel cover is screwed, and the plurality of driving motors are started to drive the plurality of stirring shafts to rotate, so that the stirring blades mix the materials in the barrel body, and meanwhile, the two swinging oil cylinders are started to drive the frame body and the barrel body to turn over in a reciprocating manner, so that the positions of the materials in the barrel body are changed due to the turning over of the barrel body; the two electric hoists are started to wind and unwind the steel wire ropes to drive the barrel body to slide back and forth in the frame body, so that the barrel body synchronously shakes during overturning, the contact frequency of materials in the barrel body and the stirring blades is increased, and the material mixing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting sand mixing technology, specifically to a rapid sand mixing device for casting. Background Technology

[0002] Sand casting is a casting method that uses raw sand with certain properties as the main molding material to make molds and produce castings. Sand mold making requires molding sand, which is made by mixing raw sand, molding sand binder, and additives in a certain proportion. Molding sand is usually divided into wet mold and dry mold. It is usually made using a sand mixer. The most common sand mixer is the blade sand mixer. The working principle of the blade sand mixer is to force the material to mix and homogenize it during the rotation of the blades. The material inside is basically moved by the rotating blades. Some molding sand and binder may sink slightly or partially due to density and other reasons, and it takes a certain amount of time to mix evenly. This results in a long mixing time and low mixing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a rapid sand mixing device for casting, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] Rapid sand mixing equipment for casting includes:

[0006] The system comprises a base plate, a sand mixing mechanism, and a shaking mechanism. The sand mixing mechanism is located above the base plate and includes a U-shaped frame. The bottom ends of both arms of the U-shaped frame are fixedly connected to the top surface of the base plate. A frame is provided between the two arms of the U-shaped frame, and support rods are fixedly connected to the middle of opposite sides of the frame. One end of each support rod is rotatably connected to the middle of the two arms of the U-shaped frame. A barrel is provided inside the frame, and multiple stirring shafts are rotatably connected to the bottom surface of the barrel. Connecting cylinders are fixedly sleeved at both ends of the multiple stirring shafts. Multiple stirring blades are fixedly connected to the outer wall of any connecting cylinder. Two locking strips are fixedly connected to the outer wall of the barrel. Locking rails are fixedly connected to the two opposite inner walls of the frame. The two locking strips are slidably locked into the two locking rails. A barrel lid is screwed onto the inner side of the top opening of the barrel. The shaking mechanism is located on one side of the frame.

[0007] Furthermore, the bottom surface of the barrel is fixedly connected to multiple motor boxes, and each of the multiple motor boxes is equipped with a drive motor. Each of the multiple drive motors corresponds to a multiple stirring shaft, and the motor shafts of the multiple drive motors are fixedly connected to one end of the corresponding stirring shaft.

[0008] Furthermore, the U-shaped frame is fixedly connected to drive boxes on both sides, and each drive box is equipped with a swing cylinder. The output ends of the two swing cylinders are fixedly connected to one end of the two support rods respectively.

[0009] Furthermore, the shaking mechanism includes:

[0010] The frame consists of a connecting frame and a power box. The connecting frame is U-shaped, with one end of each arm fixedly connected to the center of the two long sides of one side of the frame. One side of the power box is fixedly connected to one side of the connecting frame. The power box contains two electric hoists, each equipped with a wire rope. Circular holes are provided at both the top and bottom of the frame, with one end of each wire rope passing through the two circular holes. One end of each wire rope is fixedly connected to the center of the top surface of the bucket lid and the center of the bottom surface of the bucket, respectively.

[0011] Furthermore, the power box is fixedly connected to guide frames on both sides, and one end of each guide frame is fixedly connected to the top and bottom ends of the frame, and the guide frames are arc-shaped.

[0012] Furthermore, the guide frame has a U-shaped cross-section.

[0013] Furthermore, the frame is fixedly connected to U-shaped seats at both the top and bottom ends, and a roller is rotatably connected between the two arms of any U-shaped seat. An annular groove is opened at the center of the outer side wall of any roller, and two steel wire ropes are located inside the two annular grooves respectively.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] By placing the material into the barrel and then screwing the lid on to seal the barrel, multiple drive motors are activated to rotate multiple stirring shafts, causing the stirring blades to mix the material inside the barrel. Simultaneously, two swing cylinders are activated to drive the frame and barrel to rotate back and forth, thereby changing the position of the material inside the barrel due to the rotation, improving mixing efficiency. Two electric hoists can also be activated to extend and retract the steel wire rope, causing the barrel to slide back and forth inside the frame, making the barrel shake synchronously when rotating, increasing the contact frequency between the material inside the barrel and the stirring blades, and improving the material mixing efficiency. When unloading, the swing cylinders can be controlled to tilt the barrel opening downwards, and an electric hoist can be activated to drive the barrel to swing back and forth inside the frame, facilitating the pouring out of the material inside the barrel and making unloading easy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the internal structure of the barrel in this utility model;

[0018] Figure 3This is an exploded view of the sand mixing mechanism in this utility model;

[0019] Figure 4 This is a schematic diagram of the swaying mechanism in this utility model.

[0020] In the diagram: 100, base plate; 200, sand mixing mechanism; 210, U-shaped frame; 220, frame body; 221, support rod; 222, guide rail; 230, barrel body; 231, barrel lid; 232, retaining strip; 240, stirring shaft; 241, connecting cylinder; 242, stirring blade; 243, motor box; 300, drive box; 400, shaking mechanism; 410, connecting frame; 420, power box; 421, wire rope; 430, guide frame; 440, U-shaped seat; 441, idler roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 In this embodiment of the invention, the rapid sand mixing device for casting includes:

[0023] The system includes a base plate 100, a sand mixing mechanism 200, and a shaking mechanism 400. The sand mixing mechanism 200 is located above the base plate 100 and includes a U-shaped frame 210. The bottom ends of both arms of the U-shaped frame 210 are fixedly connected to the top surface of the base plate 100. A frame 220 is provided between the two arms of the U-shaped frame 210, and support rods 221 are fixedly connected to the middle of opposite sides of the frame 220. One end of each support rod 221 is rotatably connected to the middle of the two arms of the U-shaped frame 210. A barrel 230 is provided inside the frame 220. Multiple stirring shafts 240 are rotatably connected to the bottom surface of the barrel 230. Both ends of the multiple stirring shafts 240 are fixedly sleeved with connecting cylinders 241. Multiple stirring blades 242 are fixedly connected to the outer wall of any connecting cylinder 241. Two locking strips 232 are fixedly connected to the outer wall of the barrel 230. Two opposing inner walls of the frame 220 are fixedly connected with locking rails 222. The two locking strips 232 are slidably locked into the two locking rails 222 respectively. A barrel lid 231 is screwed onto the inner side of the top opening of the barrel 230. The shaking mechanism 400 is located on one side of the frame 220.

[0024] Specifically, the material is placed inside the barrel 230, and then the barrel lid 231 is screwed onto the opening of the barrel 230 to seal it. The top opening of the barrel 230 has threads on the inside, and the barrel lid 231 has a threaded ring for engaging with the threads on the barrel 230. A handle can be fitted onto the barrel lid 231 as needed. This is existing technology and will not be described in detail here. In use, after the barrel 230 is closed with the barrel lid 231, multiple stirring shafts 240 can be rotated, causing the multiple stirring shafts 240 to drive the connected connecting cylinder 241 to rotate. The stirring blades 242 on the connecting cylinder 241 mix the material in the barrel 230. While the stirring blades 242 are mixing the material, the barrel 230 can be rotated as a whole by the rotating frame 220. This causes the material inside the barrel 230 to rotate synchronously with the barrel 230 and come into contact with the stirring blades 242. This allows material that may have been deposited at the bottom of the barrel 230 to move inside the barrel 230 after the barrel 230 rotates, changing its position and being mixed by the stirring blades 242, thereby improving the mixing efficiency. Example 1

[0025] like Figures 2-3 As shown, in this embodiment, multiple motor boxes 243 are fixedly connected to the bottom surface of the barrel 230, and each of the multiple motor boxes 243 is equipped with a drive motor. The multiple drive motors correspond one-to-one with multiple stirring shafts 240, and the motor shafts of the multiple drive motors are fixedly connected to one end of the corresponding stirring shaft 240. Drive boxes 300 are fixedly connected to both sides of the U-shaped frame 210, and each of the two drive boxes 300 is equipped with a swing cylinder. The output ends of the two swing cylinders are fixedly connected to one end of the two support rods 221 respectively.

[0026] In this embodiment, multiple drive motors can be activated to rotate adjacent stirring shafts 240. Each motor housing 243 is equipped with a motor controller to control the start, stop, speed, and direction of the drive motors. Activating two swing cylinders can slowly rotate the frame 220. During the slow rotation of the frame 220, the material inside the barrel 230 will move naturally due to the rotation of the barrel 230. When material is added into the barrel 230, it will not fill the barrel 230 completely. When the barrel 230 rotates to the point where its central axis is parallel to the ground, most of the material inside the barrel 230 will be spread at the bottom of the inner side wall. At this time, the stirring blades 242 near the material can scoop and scrape the material spread on the inner side wall of the barrel 230. The rotating stirring blades 242 can also splash and agitate the material to the top of the inner side wall of the barrel 230. By continuously splashing the material, the original position of the material is changed, improving the mixing efficiency of the material. The swing cylinders, motor controllers, and drive motors are all existing technologies and will not be described in detail here.

[0027] like Figure 4 As shown, in this embodiment, the shaking mechanism 400 includes:

[0028] The connecting frame 410 and the power box 420 are U-shaped. One end of each arm of the connecting frame 410 is fixedly connected to the center of the two long sides of one side of the frame 220. One side of the power box 420 is fixedly connected to one side of the connecting frame 410. The power box 420 is equipped with two electric hoists, and each of the two electric hoists is equipped with a wire rope 421. The top and bottom ends of the frame 220 are provided with circular holes, and one end of each of the two wire ropes 421 passes through the two circular holes. One end of each of the two wire ropes 421 is fixedly connected to the center of the top surface of the bucket cover 231 and the center of the bottom surface of the bucket 230, respectively.

[0029] In practice, by activating two electric hoists, when one electric hoist rewinds the adjacent wire rope 421, the other electric hoist releases the adjacent wire rope 421. This causes the two wire ropes 421 to pull the barrel 230 back and forth within the frame 220, causing the material inside the barrel 230 to sway synchronously due to the swaying of the barrel 230, changing the position of the material inside the barrel 230, and improving the mixing efficiency. When unloading from the barrel 230, the barrel lid 231 can be unscrewed, and then the swing cylinder can be activated to tilt the opening of the barrel 230 downwards. Then, one electric hoist is activated to lift the barrel 230 back and forth, and then lower the barrel 230, so that the barrel 230 sways while maintaining the downward tilt of the opening, thus facilitating the pouring out of the material inside the barrel 230. Example 2

[0030] Based on Embodiment 1, a guide frame 430 is provided to prevent the steel wire rope 421 from affecting the movement of the barrel 230.

[0031] like Figure 4 As shown, in this embodiment, the power box 420 is fixedly connected to guide frames 430 on both sides, and one end of each guide frame 430 is fixedly connected to the top and bottom ends of the frame 220. The guide frame 430 is arc-shaped and has a U-shaped cross-section. The top and bottom ends of the frame 220 are fixedly connected to U-shaped seats 440. A roller 441 is rotatably connected between the two arms of any U-shaped seat 440. An annular groove is opened at the center of the outer wall of any roller 441, and two steel wire ropes 421 are located inside the two annular grooves respectively.

[0032] In practice, the wire rope 421 is supported by two arc-shaped guide frames 430 to prevent the wire rope 421 from contacting the barrel 230 that slides back and forth inside the frame 220. The wire rope 421 is also supported by the roller 441 to make the wire rope 421 move more smoothly when it is driven by the electric hoist.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rapid sand mixing plant for foundry use, characterised in that, The application relates to a sand mixing device. The sand mixing device comprises a bottom plate (100) and a sand mixing mechanism (200) arranged above the bottom plate (100), wherein the sand mixing mechanism (200) comprises a U-shaped frame (210), the bottom ends of the two arms of the U-shaped frame (210) are fixedly connected to the top surface of the bottom plate (100), a frame body (220) is arranged between the two arms of the U-shaped frame (210), the middle parts of the opposite two sides of the frame body (220) are fixedly connected with supporting rods (221), the two supporting rods (221) are rotatably connected to the middle parts of the two arms of the U-shaped frame (210) respectively, a barrel (230) is arranged in the frame body (220), a plurality of stirring shafts (240) are rotatably connected to the inner bottom surface of the barrel (230), connecting barrels (241) are fixedly sleeved to the two ends of the stirring shafts (240), a plurality of stirring blades (242) are fixedly connected to the outer side walls of any connecting barrel (241), two clamping strips (232) are fixedly connected to the outer side walls of the barrel (230), clamping rails (222) are fixedly connected to the two opposite inner side walls of the frame body (220), the two clamping strips (232) are slidably clamped in the two clamping rails (222) respectively, and a barrel cover (231) is screwed to the inner side of the top opening of the barrel (230). A shaking mechanism (400) is arranged on one side of the frame body (220). The shaking mechanism (400) comprises a connecting frame (410) which is in a U-shaped structure and has one ends of the two arms fixedly connected to the centers of the two long side edges on one side of the frame body (220), and a power box (420) fixedly connected to one side of the connecting frame (410).

2. The rapid sand mixing plant for foundry use according to claim 1, characterized in that, The power box (420) is internally provided with two electric hoists, and the two electric hoists are provided with steel wires (421). The frame body (220) is provided with circular holes at the top and bottom ends, and the two ends of the two steel wires (421) are fixedly connected to the center of the top surface of the barrel cover (231) and the center of the bottom surface of the barrel (230) respectively. The barrel (230) is fixedly connected with a plurality of motor boxes (243) at the bottom surface, the motor boxes (243) are internally provided with driving motors, the driving motors are in one-to-one correspondence with the stirring shafts (240), and the motor shafts of the driving motors are fixedly connected to one ends of the corresponding stirring shafts (240).

3. The rapid sand mixing plant for foundry use according to claim 1, wherein, The U-shaped frame (210) is fixedly connected with driving boxes (300) at the opposite two sides, the driving boxes (300) are internally provided with swing oil cylinders, and the output ends of the swing oil cylinders are fixedly connected to one ends of the two supporting rods (221).

4. The rapid sand mixing plant for foundry use according to claim 3, characterized in that, The power box (420) is fixedly connected with guide frames (430) at the opposite two sides, one ends of the guide frames (430) are fixedly connected to the top and bottom ends of the frame body (220), and the guide frames (430) are in an arc shape.

5. The rapid sand mixing plant for foundry use according to claim 2, wherein, The guide frames (430) are in a U-shaped cross section.

6. The rapid sand mixing plant for foundry use according to claim 5, characterized in that, ​ 7. The rapid sand mixing plant for foundry use according to claim 6, characterized in that, The frame (220) is fixedly connected with U-shaped seats (440) at both top and bottom ends, any two arms of the U-shaped seat (440) are rotationally connected with a supporting roller (441), the outer side wall center of any supporting roller (441) is provided with an annular groove, and two steel wires (421) are located in the two annular grooves respectively.

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