A screening device for coated sand

Abstract

The present invention discloses a screening device for coated sand, which relates to the technical field of coated sand screening, and includes a frame, a vibrating mechanism and a flipping mechanism. The frame is provided with an inclined screen box, the screen box is provided with a filter plate, the vibrating mechanism is provided on the screen box and is used to vibrate and screen the coated sand, and the flipping mechanism is provided in the screen box and is used to flip the screened coated sand. The present application uses a vibrating motor and a spring of the vibrating mechanism to vibrate and screen the screen box, and at the same time, the cylinder of the flipping mechanism drives the movable frame to move the flaps on the telescopic plate 1 and the telescopic plate 2 in the screen box to the left and right along the length direction of the screen box, and to move up and down along the height direction of the movable frame, so that the agglomerated coated sand can be flipped left and right and crushed up and down by the sand combing trough on the flipping plate, so that the coated sand can be more fully screened, thereby improving the screening efficiency of the coated sand.

Description

Technical Field

[0001] The invention relates to the technical field of film-coated sand screening, and in particular to a screening device for film-coated sand. Background Art

[0002] Coated sand is a special casting material, which is characterized by a layer of solid resin film on the surface of the sand particles before molding. This material is mainly used in the production of steel castings and iron castings. Coated sand itself is a powdered material. If the humidity of the storage environment is too high, especially when the humidity in the air is high, the coated sand is easy to absorb moisture, causing the original powdered material to solidify again and form lumps. When screening coated sand, if the agglomerated coated sand is directly screened on the screening device, the screening may not be thorough enough and secondary screening is required, which makes the screening efficiency low. Summary of the invention

[0003] The object of the present invention is to provide a screening device for coated sand to overcome the above-mentioned defects in the prior art.

[0004] A screening device for coated sand, comprising a frame, a vibrating mechanism and a flipping mechanism, wherein the frame is provided with an inclined screen box, and the screen box is provided with a filter plate;

[0005] The vibration mechanism is arranged on the screen box and is used to vibrate and screen the coated sand;

[0006] The turning mechanism is arranged in the screen box and is used for turning over the screened coated sand.

[0007] Preferably, the screen box is provided with a bottom discharge hopper at the bottom of the filter plate, and the inclined lower end of the screen box is provided with a side discharge hopper.

[0008] Preferably, the vibration mechanism includes a spring and a vibration motor, the two sides of the screen box are connected to the fixing seats on the frame through a plurality of springs, and two vibration motors are provided and symmetrically arranged on the two sides of the screen box.

[0009] Preferably, the flipping mechanism includes a telescopic component, a flap and a cylinder, the telescopic component is provided with two and symmetrically arranged on both sides of the screen box, the telescopic component includes a guide rail, a fixed frame, a movable frame, a telescopic plate 1 and a telescopic plate 2, the guide rail is provided with two and symmetrically arranged on both sides of the screen box, the fixed frame is arranged in the screen box and is located on the lower side of the guide rail, the movable frame is provided with a plurality of rollers at the bottom thereof and is slidably connected to the guide rail, two telescopic plates 1 hinged in an "X" shape are provided between two adjacent movable frames, the upper ends of the two telescopic plates 1 are respectively hinged to the two movable frames, and the lower ends of the two telescopic plates 1 are respectively connected through the insertion rods thereon One is slidably connected with the corresponding slide groove one on the movable frame, and two telescopic plates two are hinged in an "X" shape between the movable frame and the fixed frame, one end of one telescopic plate two is hinged to the top of the movable frame, and the other end of the telescopic plate two is slidably connected to the slide groove two on the fixed frame through the insertion rod two thereon, one end of the other telescopic plate two is hinged to the top of the fixed frame, and the other end of the telescopic plate two is slidably connected to the slide groove three on the movable frame through the insertion rod three thereon, and flaps are provided between the telescopic plates one and two corresponding to the two sides of the screen box, and two cylinders are provided and symmetrically arranged on both sides of the screen box and their piston rods are respectively connected to the uppermost movable frame.

[0010] Preferably, a plurality of sand combing grooves are evenly distributed on the flap.

[0011] The beneficial effects achieved by the present invention are:

[0012] The present application uses the vibration motor and spring of the vibration mechanism to vibrate and screen the screen box, and at the same time drives the moving frame through the cylinder of the flipping mechanism to make the telescopic plate one and the flip plate on the telescopic plate two move left and right in the screen box along the length direction of the screen box, and move up and down along the height direction of the moving frame, so that the agglomerated coated sand can be flipped left and right and crushed up and down by the sand combing trough on the flip plate, so that the coated sand can be screened more fully, thereby improving the screening efficiency of the coated sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the whole invention.

[0014] Figure 2 It is a top view of the present invention as a whole.

[0015] Figure 3 It is a structural schematic diagram of the flipping mechanism of the present invention.

[0016] Figure 4 It is a front view of the flipping mechanism of the present invention.

[0017] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0018] Figure 6 for Figure 4 A partial enlarged view of point B in the middle.

[0019] Figure 7 It is a structural schematic diagram of the flap of the present invention.

[0020] In the figure, 1. frame; 2. screen box; 21. bottom discharge hopper; 22. side discharge hopper; 3. filter plate; 4. vibration mechanism; 41. spring; 42. fixed seat; 43. vibration motor; 5. flipping mechanism; 51. telescopic assembly; 511. guide rail; 512. fixed frame; 5121. slide 2; 513. mobile frame; 5131. roller; 5132. slide 1; 5133. slide 3; 514. telescopic plate 1; 5141. plug rod 1; 515. telescopic plate 2; 5151. plug rod 2; 5152. plug rod 3; 516. flip plate; 5161. sand combing trough; 517. cylinder. DETAILED DESCRIPTION

[0021] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention.

[0022] like Figure 1-7 As shown, the present invention provides a screening device for coated sand, comprising a frame 1, a vibrating mechanism 4 and a flipping mechanism 5, wherein the frame 1 is provided with an inclined screen box 2, wherein the screen box 2 is provided with a filter plate 3, wherein the screen box 2 is provided with a bottom discharge hopper 21 at the bottom of the filter plate 3, and the coated sand with a particle size that meets the requirements is discharged from the bottom discharge hopper 21, and the inclined lower end of the screen box 2 is provided with a side discharge hopper 22, and the coated sand with a particle size that does not meet the requirements is discharged from the side discharge hopper 22, wherein the vibrating mechanism 4 is provided on the screen box 2 and is used for vibrating and screening the coated sand, and wherein the flipping mechanism 5 is provided in the screen box 2 and is used for flipping the screened coated sand;

[0023] It should be noted that the vibration mechanism 4 includes a spring 41 and a vibration motor 43. The two sides of the screen box 2 are connected to the fixing seat 42 on the frame 1 through a plurality of springs 41. The vibration motor 43 is provided with two and symmetrically arranged on the two sides of the screen box 2. The screen box 2 is vibrated and screened by the vibration motor 43.

[0024] In addition, the flipping mechanism 5 includes a telescopic component 51, a flap 516 and a cylinder 517. The telescopic component 51 is provided with two and is symmetrically arranged on both sides of the screen box 2. The telescopic component 51 includes a guide rail 511, a fixed frame 512, a movable frame 513, a telescopic plate 1 514 and a telescopic plate 2 515. The guide rail 511 is provided with two and is symmetrically arranged on both sides of the screen box 2. The fixed frame 512 is arranged in the screen box 2 and is located at the lower side of the guide rail 511. The movable frame 513 is provided with a plurality of rollers 5131 at the bottom thereof and is slidably connected to the guide rail 511. Two telescopic plates 1 514 hinged in an "X" shape are provided between two adjacent movable frames 513. The upper ends of the two telescopic plates 1 514 are respectively hinged to the two movable frames 513, and the lower ends of the two telescopic plates 1 514 are respectively connected to the corresponding slide groove 1 5132 on the movable frame 513 through the insertion rod 1 5141 thereon Sliding connection, two telescopic plates 515 hinged in an "X" shape are provided between the movable frame 513 and the fixed frame 512, one end of one telescopic plate 515 is hinged to the top of the movable frame 513, and the other end of the telescopic plate 515 is slidably connected to the slide groove 5121 on the fixed frame 512 through the insertion rod 5151 thereon, one end of the other telescopic plate 515 is hinged to the top of the fixed frame 512, and the other end of the telescopic plate 515 is slidably connected to the slide groove 5133 on the movable frame 513 through the insertion rod 3 5152 thereon, and flaps 516 are provided between the telescopic plates 1 514 and 515 corresponding to the two sides of the screen box 2, and a plurality of sand combing grooves 5161 are evenly distributed on the flaps 516 to flip and comb the coated sand, and the cylinder 517 is provided with two and symmetrically arranged on both sides of the screen box 2 and the piston rods thereof are respectively connected to the uppermost movable frame 513.

[0025] Specific implementation and principle:

[0026] S1, conveying the coated sand to be screened to the screen box 2;

[0027] S2, and turn on the vibration motor 43 and the cylinder 517, the vibration motor 43 makes the screen box 2 vibrate, and the coated sand is screened and filtered through the filter plate 3;

[0028] S3, the cylinder 517 drives the roller 5131 on the mobile frame 513 to move in the guide rail 511 through the piston rod thereon, so that the flap 516 on the telescopic plate 1 514 and the telescopic plate 2 515 can move left and right in the screen box 2 along the length direction of the screen box 2, and move up and down along the height direction of the mobile frame 513, so that the agglomerated coated sand can be flipped left and right and crushed up and down by the sand combing groove 5161 on the flap 516;

[0029] S4. The coated sand with the particle size meeting the requirements is discharged through the bottom discharge hopper 21 at the bottom of the screen box 2, and the coated sand with the particle size not meeting the requirements is discharged through the side discharge hopper 22 at the lower side of the screen box 2.

[0030] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A screening device for coated sand, characterized in that: It comprises a frame (1), a vibrating mechanism (4) and a flipping mechanism (5); the frame (1) is provided with an inclined screen box (2), and the screen box (2) is provided with a filter plate (3); The vibration mechanism (4) is arranged on the screen box (2) and is used to vibrate and screen the coated sand; The turning mechanism (5) is arranged in the screen box (2) and is used to turn over the screened coated sand; The flipping mechanism (5) comprises a telescopic assembly (51), a flap (516) and a cylinder (517); the telescopic assembly (51) is provided with two and symmetrically arranged on both sides of the screen box (2); the telescopic assembly (51) comprises a guide rail (511), a fixed frame (512), a movable frame (513), a telescopic plate 1 (514) and a telescopic plate 2 (515); the guide rail (511) is provided with two and symmetrically arranged on both sides of the screen box (2); the fixed frame (512) is provided with a The movable frame (513) is provided with a plurality of rollers (5131) at the bottom thereof and is slidably connected to the movable frame (511). Two telescopic plates (514) are provided between two adjacent movable frames (513). The upper ends of the two telescopic plates (514) are respectively hinged to the two movable frames (513). The lower ends of the two telescopic plates (514) are respectively hinged to the two movable frames (513) through the insertion rods (5141) thereon. The movable frame (513) is slidably connected to the corresponding slide groove 1 (5132) on the fixed frame (512). Two "X"-shaped hinged telescopic plates 2 (515) are provided between the movable frame (513) and the fixed frame (512). One end of the telescopic plate 2 (515) is hinged to the top of the movable frame (513). The other end of the telescopic plate 2 (515) is slidably connected to the slide groove 2 (5121) on the fixed frame (512) through the insertion rod 2 (5151) thereon. One end of the telescopic plate 1 (515) is hinged to the top of the fixed frame (512), and the other end of the telescopic plate 2 (515) is slidably connected to the slide groove 3 (5133) on the movable frame (513) through the insertion rod 3 (5152) thereon. A flap (516) is provided between the telescopic plates 1 (514) and the telescopic plates 2 (515) corresponding to the two sides of the screen box (2). The cylinder (517) is provided with two and symmetrically arranged on the two sides of the screen box (2), and the piston rods thereof are respectively connected to the uppermost movable frame (513).

2. A screening device for coated sand according to claim 1, characterized in that: The screen box (2) is provided with a bottom discharge hopper (21) at the bottom of the filter plate (3), and the inclined lower end of the screen box (2) is provided with a side discharge hopper (22).

3. A screening device for coated sand according to claim 1, characterized in that: The vibration mechanism (4) comprises a spring (41) and a vibration motor (43); the two sides of the screen box (2) are connected to a fixing seat (42) on the frame (1) via a plurality of springs (41); and two vibration motors (43) are provided and symmetrically arranged on the two sides of the screen box (2).

4. A screening device for coated sand according to claim 1, characterized in that: A plurality of sand combing grooves (5161) are evenly distributed on the flap (516).

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