Automatic precoated sand feeding device

Abstract

The utility model provides an automatic precoated sand feeding device which comprises a screening box, a storage box and a feeding barrel, the upper end of the screening box is communicated with a feeding port, the middle of the lower end of the screening box is communicated with the storage box, springs are arranged at the four corners of the lower end of the screening box and connected with the screening box and the storage box, vibration motors are arranged on the two sides of the screening box, and a transmission motor is arranged on the front side of the screening box. A plurality of rollers and a filter screen are arranged in the screening box, the rollers are rotationally connected through a crawler belt, the crawler belt is connected with a transmission motor on the outer side of the screening box, the filter screen is arranged below the rollers, the storage box is communicated with one side of the feeding barrel, a discharging pipe is arranged on the other side of the feeding barrel, the storage box is higher than the feeding barrel, and feeding rotating blades are arranged in the feeding barrel. The feeding rotating blade is connected with a rotating motor on the outer side of the feeding barrel. The precoated sand feeding mechanism solves the problem that precoated sand raw material particles are large, so that later use of precoated sand and the subsequent heating effect are affected, the automation degree is high, the labor intensity of workers is reduced, and the use efficiency of the feeding mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand preparation, in particular to an automatic feeding device for coated sand. Background Art

[0002] Coated sand refers to the molding sand and core sand that have been covered with a layer of solid resin film on the surface of the sand before molding and core making. It is also called shell (core) sand. Coated sand mainly uses quartz sand as raw sand, thermoplastic phenolic resin, urotropine and reinforcing agent as raw materials. There are currently two coating processes: cold method and hot method. Coated sand needs to be loaded during the production process and sent into the device for processing. However, with the continuous improvement of production quality requirements, the requirements for coated sand raw materials are also increasing. Many raw materials have not been separated, resulting in large and inappropriate particles, which affects the later use of coated sand and the subsequent heating effect. In addition, the degree of automation is low, quantitative feeding cannot be performed, and the complex operation increases the labor intensity of workers and reduces the efficiency of the feeding mechanism. Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic feeding device for coated sand, so as to solve the problems that the raw material particles of the coated sand are of different sizes, quantitative feeding cannot be performed, and the feeding efficiency is low.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an automatic feeding device for coated sand, including a screening box, a storage box and a feeding barrel. The upper end of the screening box is connected to the feeding port, and the middle part of the lower end of the screening box is connected to the storage box. Springs are arranged at the four corners of the lower end, and the springs connect the screening box and the storage box. Vibration motors are arranged on both sides of the screening box, and a transmission motor is arranged on the front side. A plurality of rollers and filter screens are arranged inside the screening box. The rollers are rotatably connected through crawlers, and the crawlers are connected to the transmission motor on the outside of the screening box. A filter screen is arranged under the roller, and the storage box is connected to one side of the feeding barrel. A discharge pipe is arranged on the other side of the feeding barrel. The storage box is higher than the feeding barrel, and a feeding rotating blade is arranged in the feeding barrel, and the feeding rotating blade is connected to the rotating motor on the outside of the feeding barrel.

[0005] In a preferred embodiment, the middle portion of the lower end of the screening box is connected to the storage box via a second through pipe.

[0006] In a preferred embodiment, the material storage box is connected to one side of the material supply cylinder through a first through pipe.

[0007] In a preferred embodiment, the vibration motor is threadedly connected to both sides of the screening box.

[0008] In the preferred embodiment, the drum is fixedly connected to the transmission wheel, and the crawler belts are rotated alternately in sequence to connect the transmission wheels.

[0009] In the preferred embodiment, a connecting crawler is further provided, the upper end of which is rotatably connected to two transmission wheels, and the lower end of which is connected to a transmission motor on the front side of the screening box.

[0010] In the preferred embodiment, a feed box base is also provided, which is placed at the lower end of the feed barrel. A rotating motor is fixedly connected to the front side of the feed box base. The rotating motor rotates the rotating shaft connected to the inside of the feed barrel, and the rotating shaft is fixedly connected to the feeding rotating blade.

[0011] The utility model provides an automatic feeding device for coated sand. When in use, the coated sand raw material is put into the feed port, the raw material enters the screening box, the transmission motor and the vibration motor are started, the transmission motor drives the crawler and the connecting crawler to rotate, so as to drive the drum to rotate, and the large particles of raw materials are processed and rolled. The rolled raw materials fall into the filter net, and the raw materials that meet the requirements are filtered through the vibration screen and enter the storage box. The storage box is higher than the feeding tube, and the raw materials in the storage box slide into the feeding tube through the first through pipe, and the rotating motor is started, and then the raw materials are raised to the discharge pipe through the feeding rotating blade for feeding. The utility model processes the coated sand raw materials by adding the rolling and screening structures, solves the problem of different raw material particle sizes, and has a high degree of automation, reducing the intensity of manual work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 This is the overall appearance structure diagram of the utility model;

[0014] Figure 2 It is a side view of the overall appearance of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the screening box of the utility model;

[0016] Figure 4 This utility model Figure 3 A partial enlarged schematic diagram in the middle;

[0017] Figure 5 It is a schematic diagram of the internal structure of the feeding barrel of the utility model.

[0018] In the figure: feed port 1; screening box 2; vibration motor 3; transmission motor 4; spring 5; storage box 6 storage box 6; first through pipe 7; rotating motor 8; feeding barrel 9; discharge pipe 10; crawler belt 11; connecting crawler belt 1101; transmission wheel 12; drum 13; filter screen 14; second through pipe 15; feeding rotary blade 16; rotating shaft 17; feeding box base 18. DETAILED DESCRIPTION

[0019] Example 1

[0020] like Figures 1 to 5 As shown, an automatic feeding device for coated sand includes a screening box 2, a storage box 6 and a feeding cylinder 9. The upper end of the screening box 2 is connected to the feeding port 1, and the middle part of the lower end of the screening box 2 is connected to the storage box 6. Springs 5 ​​are arranged at the four corners of the lower end, and the springs 5 ​​connect the screening box 2 and the storage box 6. Vibration motors 3 are arranged on both sides of the screening box 2, and a transmission motor 4 is arranged on the front side. A plurality of rollers 13 and a filter screen 14 are arranged inside the screening box 2. The rollers 13 are rotatably connected through crawlers 11, and the crawlers 11 are connected to the transmission motor 4 on the outside of the screening box 2. A filter screen 14 is arranged below the roller 13, the storage box 6 is connected to one side of the feeding cylinder 9, and a discharge pipe 10 is arranged on the other side of the feeding cylinder 9. The storage box 6 is higher than the feeding cylinder 9, and a feeding rotating blade 16 is arranged in the feeding cylinder 9, and the feeding rotating blade 16 is connected to the rotating motor 8 on the outside of the feeding cylinder 9. When the device is in use, the coated sand raw material is put into the feed port 1, the raw material enters the screening box 2, the transmission motor 4 and the vibration motor 3 are started, the drum 13 rotates, the large particles of the raw material are processed and rolled, and the rolled raw material falls into the filter screen 14, passes through the vibration screen, and the raw material that meets the requirements is filtered and enters the storage box 6, and enters the feeding tube 9 through the setting that the storage box 6 is higher than the feeding tube 9, the rotating motor 8 is started, and then it rises to the discharge pipe 10 through the feeding rotary blade 16 for feeding.

[0021] In the preferred embodiment, the middle part of the lower end of the screening material box 2 is connected to the storage box 6 through the second through pipe 15. The connection structure is strengthened to facilitate the arrangement of the spring 5 and the vibration screening material box 2.

[0022] In the preferred embodiment, the material storage box 6 is connected to one side of the material supply tube 9 through the first through pipe 7. The first through pipe 7 can slide the raw materials in the material storage box 6 into the material supply tube 9.

[0023] In a preferred embodiment, the vibration motor 3 is threadedly connected to both sides of the screening box 2 .

[0024] In the preferred embodiment, the roller 13 is fixedly connected to the transmission wheel 12, and the crawler belt 11 is rotated and connected to each transmission wheel 12 in sequence. The transmission wheels 12 are rotated and connected, and the roller 13 is driven to move.

[0025] In the preferred embodiment, a connecting crawler 1101 is further provided, the upper end of which is rotatably connected to two transmission wheels 12, and the lower end is connected to the transmission motor 4 at the front side of the screening box 2. The connecting crawler 1101 is provided to connect the transmission wheel 12 and the transmission motor 4, thereby reducing manual work.

[0026] In the preferred embodiment, a feed box base 18 is also provided, and the feed box base 18 is placed at the lower end of the feed barrel 9. The rotating motor 8 is fixedly connected to the front side of the feed box base 18. The rotating motor 8 rotates the rotating shaft 17 connected to the inside of the feed barrel 9, and the rotating shaft 17 is fixedly connected to the feeding rotating blade 16.

[0027] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An automatic feeding device for coated sand, characterized by: The invention comprises a screening box (2), a storage box (6) and a feeding cylinder (9), wherein the upper end of the screening box (2) is connected to a feeding port (1), the middle part of the lower end of the screening box (2) is connected to the storage box (6), springs (5) are arranged at four corners of the lower end, the springs (5) connect the screening box (2) and the storage box (6), the screening box (2) is provided with vibration motors (3) on both sides, and a transmission motor (4) on the front side, and a plurality of rollers (13) and filter screens (14) are arranged inside the screening box (2), and the rollers (13) are connected to the filter screen (14). The crawler (11) is rotatably connected, the crawler (11) is connected to the transmission motor (4) outside the screening box (2), a filter screen (14) is arranged below the drum (13), the storage box (6) is connected to one side of the feeding cylinder (9), a discharge pipe (10) is arranged on the other side of the feeding cylinder (9), the storage box (6) is higher than the feeding cylinder (9), a feeding rotary blade (16) is arranged in the feeding cylinder (9), and the feeding rotary blade (16) is connected to the rotating motor (8) outside the feeding cylinder (9).

2. The automatic feeding device for coated sand according to claim 1 is characterized in that: The middle portion of the lower end of the screening box (2) is connected to the material storage box (6) via a second through pipe (15).

3. The automatic feeding device for coated sand according to claim 1 is characterized in that: The material storage box (6) is connected to one side of the material supply cylinder (9) via a first through pipe (7).

4. The automatic feeding device for coated sand according to claim 1 is characterized in that: The vibration motor (3) is threadedly connected to both sides of the screening box (2).

5. The automatic feeding device for coated sand according to claim 1 is characterized in that: The roller (13) is fixedly connected to the driving wheel (12), and the crawler belt (11) rotates alternately in sequence to connect the driving wheels (12).

6. The automatic feeding device for coated sand according to claim 5 is characterized in that: A connecting crawler (1101) is also provided, the upper end of the connecting crawler (1101) is rotatably connected to the two transmission wheels (12), and the lower end is connected to the transmission motor (4) at the front side of the screening box (2).

7. The automatic feeding device for coated sand according to claim 1 is characterized in that: A feed box base (18) is also provided, and the feed box base (18) is placed at the lower end of the feed barrel (9). A rotating motor (8) is fixedly connected to the front side of the feed box base (18). The rotating motor (8) rotates a rotating shaft (17) connected to the inside of the feed barrel (9), and the rotating shaft (17) is fixedly connected to the feeding rotating blade (16).

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