Automatic precoated sand feeding device

Abstract

The utility model relates to an automatic precoated sand feeding device, and relates to the field of precoated sand processing devices. The device comprises a base, a supporting rod arranged on the base, a storage hopper and a stirring assembly which are arranged on the supporting rod, an electric valve arranged on the storage hopper, and a first transmission motor, a weighing machine, a containing hopper and a controller which are arranged on the base, the material containing hopper is connected with the weighing machine, the weighing machine is connected with the first transmission motor, and the weighing machine and the electric valve are both electrically connected with the controller. The feeding device has the effects of improving the accuracy of the feeding process and improving the feeding efficiency.

Description

Technical Field

[0001] The present application relates to the field of coated sand processing devices, and in particular to an automatic feeding device for coated sand. Background Art

[0002] Coated sand mainly uses high-quality selected natural quartz sand as raw sand, thermoplastic phenolic resin, hexamethylenetetramine and reinforcing agent as raw materials. According to the different technical needs of users, the proportion is appropriately adjusted in terms of curing speed, demolding, fluidity, disintegration, casting surface finish and storage. It is one of the best modeling materials for automobiles, tractors, hydraulic parts, etc.

[0003] During the processing of coated sand, a feeding device is required to transport the coated sand to the processing device. The existing feeding device usually includes a storage hopper and a valve set on the storage hopper. The staff adjusts the amount of coated sand added by controlling the opening and closing of the valve or weighs the coated sand at the weighing device first, and then transfers the weighed coated sand to the processing device through the transfer equipment. However, the above method has the problems of inaccurate control of the added amount and cumbersome operation, thereby reducing the production efficiency of coated sand.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the process of adding coated sand has problems such as inaccurate addition amount and complicated operation, which reduces the production quality of coated sand. Utility Model Content

[0005] In order to solve the problems of inaccurate addition amount and complicated operation in the feeding process of coated sand, which reduces the production quality of coated sand, the present application provides an automatic feeding device for coated sand.

[0006] The present application provides an automatic feeding device for coated sand, which adopts the following technical solution:

[0007] A coated sand automatic feeding device comprises a base, a support rod arranged on the base, a storage hopper and a stirring assembly arranged on the support rod, an electric valve arranged on the storage hopper, a first transmission motor arranged on the base, a weighing device, a hopper and a controller; the hopper is connected to the weighing device, the weighing device is connected to the first transmission motor, and the weighing device and the electric valve are both electrically connected to the controller.

[0008] By adopting the above technical scheme, the stirring component stirs the coated sand in the storage hopper, opens the electric valve, and the coated sand falls into the hopper. The weighing device transmits the weight information of the coated sand in the hopper to the controller. When the weight of the coated sand reaches the required value, the controller controls the electric valve to close, and then the first transmission motor drives the weighing device and the hopper to rotate, so that the weighed coated sand falls into the processing device, thereby improving the precise control of the coated sand feeding weight and improving the feeding efficiency of the coated sand.

[0009] Optionally, the transmission shaft of the first transmission motor is fixedly connected to an electric telescopic rod, and one end of the electric telescopic rod away from the first transmission motor is connected to the weighing device.

[0010] By adopting the above technical solution, when the weight of the coated sand in the hopper reaches the required amount, the electric telescopic rod drives the hopper to move away from the storage hopper, so that the coated sand that is still in a falling state after the electric valve is closed cannot fall into the hopper, thereby improving the accuracy of the coated sand feeding amount and thus improving the production quality.

[0011] Optionally, a material receiving bucket is provided on the base, and the material receiving bucket is arranged below the storage hopper.

[0012] By adopting the above technical solution, after the material holding hopper is moved away from under the storage hopper, the falling coated sand falls into the receiving bucket, and the coated sand collected in the receiving bucket can be poured back into the storage hopper for use, thereby reducing the waste of coated sand and improving the neatness of the base.

[0013] Optionally, the material receiving barrel is movably connected to the base, a limiting rod is provided on the base, a limiting plate is connected to the material receiving barrel, a limiting hole is provided on the limiting plate, and the limiting rod passes through the limiting hole and is connected to the limiting plate.

[0014] By adopting the above technical solution, the material receiving barrel is fixed by inserting the limit rod into the limit hole, so that the material receiving barrel is aligned with the storage hopper, reducing the situation where the coated sand falls outside the material receiving barrel, thereby further reducing the waste of coated sand.

[0015] Optionally, the stirring assembly includes a mounting plate connected to the support rod, a second transmission motor disposed on the mounting plate, a rotating rod fixedly connected to a transmission shaft of the second transmission motor, and a plurality of stirring rods disposed on the rotating rod.

[0016] By adopting the above technical solution, the second transmission motor drives the rotating rod and the stirring rod to stir the coated sand in the storage hopper, thereby improving the efficiency of the coated sand falling from the storage hopper, thereby improving the feeding efficiency of the coated sand.

[0017] Optionally, a first support block and a second support block are provided on the base, the first support block is slidably connected to the electric telescopic rod, and the second support block is fixedly connected to the first transmission motor.

[0018] By adopting the above technical solution, the first support block supports the electric telescopic rod, thereby increasing the stability of the electric telescopic rod in driving the hopper and the weighing device to extend and retract. The second support block supports the first transmission motor, thereby facilitating the first transmission motor to drive the hopper and the weighing device to rotate, thereby quickly realizing the addition of coated sand.

[0019] Optionally, a scraper is provided in the hopper, and the scraper is slidably connected to the hopper.

[0020] By adopting the above technical solution, when the weighed coated sand is poured into the processing device, the scraper can scrape off the coated sand remaining in the hopper, thereby further improving the accuracy of the coated sand feeding.

[0021] Optionally, a third transmission motor is provided on the hopper, a slide groove is opened on the side wall of the hopper, a reciprocating screw and a slider are provided in the slide groove, one end of the reciprocating screw is fixedly connected to the transmission shaft of the third transmission motor, and the other end is rotatably connected to the hopper, the slider is threadedly connected to the reciprocating screw and slidably connected to the slide groove, and the slider is connected to the scraper.

[0022] By adopting the above technical solution, the third transmission motor drives the reciprocating screw to rotate, the reciprocating screw drives the slider to slide in the slide groove, and the slider drives the scraper to scrape the coated sand remaining in the hopper into the processing device, thereby realizing precise control of the coating sand.

[0023] Optionally, a cleaning brush is provided on the scraper.

[0024] By adopting the above technical solution, the provision of the cleaning brush improves the cleaning effect of the scraper on the residual coated sand in the hopper.

[0025] In summary, this application has the following beneficial technical effects:

[0026] 1. The weigher and the electric valve are electrically connected to the controller to achieve accurate weighing of the coated sand. The first transmission motor drives the hopper to rotate to achieve rapid feeding, thereby improving the accuracy and efficiency of the feeding process;

[0027] 2. The scraper scrapes the residual coated sand in the hopper into the processing device, further improving the accuracy of the feeding process;

[0028] 3. The electric telescopic rod drives the hopper to move, further improving the accuracy of the feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an automatic feeding device for coated sand;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of an automatic feeding device for coated sand;

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the hopper.

[0032] Explanation of the accompanying drawings: 1. Base; 11. Support rod; 12. First transmission motor; 13. Weighing device; 14. Electric telescopic rod; 15. First support block; 16. Second support block; 17. Limit rod; 2. Storage hopper; 21. Electric valve; 3. Stirring assembly; 31. Mounting plate; 32. Second transmission motor; 33. Rotating rod; 34. Stirring rod; 4. Material hopper; 41. Scraper; 42. Third transmission motor; 43. Slide; 44. Reciprocating screw; 45. Sliding block; 46. Cleaning brush; 5. Controller; 6. Material receiving bucket; 61. Limit plate; 611. Limit hole. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-3 This application is described in further detail.

[0034] The embodiment of the present application discloses an automatic feeding device for coated sand.

[0035] Reference Figure 1 , Figure 2 and Figure 3 , an automatic feeding device for coated sand, comprising a base 1, a support rod 11 fixedly arranged on the base 1, a storage hopper 2 and a stirring assembly 3 fixedly arranged on the support rod 11, an electric valve 21 fixedly arranged on the storage hopper 2, a first transmission motor 12 arranged on the base 1, a weighing device 13, a hopper 4 and a controller 5. The hopper 4 is fixedly connected to the weighing device 13, and the weighing device 13 and the electric valve 21 are both electrically connected to the controller 5. The controller 5 is fixedly arranged on the support rod 11. A material receiving bucket 6 is arranged on the base 1, and the material receiving bucket 6 is arranged below the storage hopper 2.

[0036] The stirring assembly 3 includes a mounting plate 31 fixedly connected to the support rod 11 , a second transmission motor 32 fixedly arranged on the mounting plate 31 , a rotating rod 33 fixedly connected to the transmission shaft of the second transmission motor 32 , and a plurality of stirring rods 34 fixedly arranged on the rotating rod 33 .

[0037] The transmission shaft of the first transmission motor 12 is fixedly connected with an electric telescopic rod 14, and one end of the electric telescopic rod 14 away from the first transmission motor 12 is fixedly connected with the weighing device 13. A first support block 15 and a second support block 16 are provided on the base 1, the first support block 15 is slidably connected with the electric telescopic rod 14, and the second support block 16 is fixedly connected with the first transmission motor 12.

[0038] The material receiving barrel 6 is movably connected to the base 1 . A limiting rod 17 is fixedly provided on the base 1 . A limiting plate 61 is fixedly connected to the material receiving barrel 6 . A limiting hole 611 is provided on the limiting plate 61 . The limiting rod 17 passes through the limiting hole 611 and is connected to the limiting plate 61 .

[0039] The hopper 4 is provided with a scraper 41, which is slidably connected to the hopper 4. The hopper 4 is fixedly provided with a third transmission motor 42, and a chute 43 is provided on the side wall of the hopper 4. A reciprocating screw rod 44 and a slider 45 are provided in the chute 43. One end of the reciprocating screw rod 44 is fixedly connected to the transmission shaft of the third transmission motor 42, and the other end is rotatably connected to the hopper 4 through a bearing. The slider 45 is threadedly connected to the reciprocating screw rod 44 and slidably connected to the chute 43. The slider 45 is fixedly connected to the scraper 41. A cleaning brush 46 is fixedly provided on the scraper 41.

[0040] The implementation principle of an automatic feeding device for coated sand in an embodiment of the present application is as follows: the second transmission motor 32 drives the rotating rod 33 and the stirring rod 34 to stir the coated sand in the storage hopper 2, and the electric valve 21 is opened, and the coated sand falls onto the material receiving hopper 4, and the weighing device 13 transmits the weight information of the coated sand in the material receiving hopper 4 to the controller 5. When the weight of the coated sand reaches the required value, the controller 5 controls the electric valve 21 to close, and at the same time, the electric telescopic rod 14 drives the weighing device 13 and the material receiving hopper 4 to move away from the storage hopper 2, so that the coated sand in a falling state after the electric valve 21 is closed falls into the receiving bucket 6. Then the first transmission motor 12 drives the hopper 4 to rotate and dumps the coated sand into the processing device. The third transmission motor 42 drives the reciprocating screw 44 to rotate. The reciprocating screw 44 drives the slider 45 to slide in the slide groove 43. The slider 45 drives the scraper 41 and the cleaning brush 46 to scrape the coated sand remaining in the hopper 4 into the processing device, thereby realizing precise control of the coating sand and improving the feeding efficiency.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic feeding device for coated sand, characterized in that: The invention comprises a base (1), a support rod (11) arranged on the base (1), a material storage hopper (2) and a stirring assembly (3) arranged on the support rod (11), an electric valve (21) arranged on the material storage hopper (2), a first transmission motor (12) arranged on the base (1), a weighing device (13), a material storage hopper (4) and a controller (5); the material storage hopper (4) is connected to the weighing device (13), the weighing device (13) is connected to the first transmission motor (12), and the weighing device (13) and the electric valve (21) are both electrically connected to the controller (5).

2. The automatic feeding device for coated sand according to claim 1, characterized in that: The transmission shaft of the first transmission motor (12) is fixedly connected to an electric telescopic rod (14), and one end of the electric telescopic rod (14) away from the first transmission motor (12) is connected to the weighing device (13).

3. The automatic feeding device for coated sand according to claim 2 is characterized in that: A material receiving bucket (6) is provided on the base (1), and the material receiving bucket (6) is arranged below the material storage hopper (2).

4. The automatic feeding device for coated sand according to claim 3 is characterized in that: The material receiving barrel (6) is movably connected to the base (1); a limiting rod (17) is provided on the base (1); a limiting plate (61) is connected to the material receiving barrel (6); a limiting hole (611) is provided on the limiting plate (61); the limiting rod (17) passes through the limiting hole (611) and is connected to the limiting plate (61).

5. The automatic feeding device for coated sand according to claim 4 is characterized in that: The stirring assembly (3) comprises a mounting plate (31) connected to the support rod (11), a second transmission motor (32) arranged on the mounting plate (31), a rotating rod (33) fixedly connected to a transmission shaft of the second transmission motor (32), and a plurality of stirring rods (34) arranged on the rotating rod (33).

6. The automatic feeding device for coated sand according to claim 5, characterized in that: A first support block (15) and a second support block (16) are provided on the base (1); the first support block (15) is slidably connected to the electric telescopic rod (14), and the second support block (16) is fixedly connected to the first transmission motor (12).

7. The automatic feeding device for coated sand according to claim 6, characterized in that: The material hopper (4) is provided with a scraper (41), and the scraper (41) is slidably connected to the material hopper (4).

8. The automatic feeding device for coated sand according to claim 7, characterized in that: The material hopper (4) is provided with a third transmission motor (42), a slide groove (43) is provided on the side wall of the material hopper (4), a reciprocating screw rod (44) and a slider (45) are provided in the slide groove (43), one end of the reciprocating screw rod (44) is fixedly connected to the transmission shaft of the third transmission motor (42), and the other end is rotationally connected to the material hopper (4), the slider (45) is threadedly connected to the reciprocating screw rod (44) and slidably connected to the slide groove (43), and the slider (45) is connected to the scraper (41).

9. The automatic feeding device for coated sand according to claim 8, characterized in that: The scraper (41) is provided with a cleaning brush (46).

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