Separating screen for casting molding sand separation

Abstract

The separating screen comprises a separating screen base, a separating box is assembled at the top end of the separating screen base, and a casting bearing body is assembled at the top end of the separating box; a separation opening is formed in the top end of the separation box, and a separation screen frame is assembled in the separation opening. Mounting cavities are uniformly formed in the inner walls of the upper side and the lower side of the separating screen frame from left to right at equal intervals, a shaft seat is mounted in each mounting cavity, the positions of the shaft seats on the upper side and the lower side are in one-to-one correspondence, and a bearing shaft is mounted between the upper shaft seat and the lower shaft seat; an embedding opening is formed in the position, located on the rear side of the mounting cavity, of the top end of the separating screen frame, an embedding frame is embedded in the embedding opening, and a separating screen is mounted in the embedding frame; according to the separating screen for separating the casting and the molding sand, the casting is placed in the separating screen frame in a vibration mode, so that the casting and the molding sand are separated and discharged respectively, old sand and residual iron are separated, manual sorting is not needed, and the effect of wasting time and labor is avoided.

Description

TECHNICAL FIELD

[0001] The patent relates to the field of separation screens, in particular to a separation screen for separating foundry sand. BACKGROUND

[0002] After the casting is poured, the foundry sand is separated from the old sand by a sand treatment old sand recycling device, and the separated casting is processed separately. If the residual iron block is not separated cleanly and mixed with the old sand, it will cause serious damage to the molding equipment when the molding sand is made by the sand treatment system and supplied to the production line molding production.

[0003] Currently, the waste sand after casting is completed needs to be screened by a multi-angle screen by manual operation to separate the residual iron block from the old sand, which is time-consuming and labor-intensive, and the manual separation and classification can easily cause the residual iron block to be not separated cleanly and mixed with the old sand, which is made into molding sand by the sand treatment system, so the existing technology needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the purpose of the patent is to provide a separation screen for separating foundry sand.

[0005] The technical solution adopted by the patent to solve its technical problems is: a separation screen for separating foundry sand, comprising a separation screen base, a separation box is assembled at the top end of the separation screen base, and a casting carrier is assembled at the top end of the separation box.

[0006] A separation opening is formed at the top end of the separation box, and a separation screen frame is assembled inside the separation opening.

[0007] Uniformly equidistant mounting cavities are formed in the inner walls of the upper and lower sides of the separation screen frame from left to right, an axle seat is installed inside each mounting cavity, the positions of the axle seats on the upper and lower sides correspond one by one, and a bearing shaft is installed between the upper and lower axle seats.

[0008] An embedded opening is formed at the top end of the separation screen frame on the rear side of the mounting cavity, an embedded frame is embedded in the embedded opening, and a separation screen mesh is installed inside the embedded frame.

[0009] Vibration plates are installed at the upper end of the separation screen base on the front side walls of the separation box, a flow guide plate is installed between the two vibration plates, a vibration motor is installed on the separation screen base, vibration springs are installed on the side walls of the vibration plates, and the vibration springs are connected to the driving end of the vibration motor.

[0010] Further, the inner wall of the shaft seat is uniformly and equidistantly provided with a rotating cavity along its axis, a ball is installed inside the rotating cavity, the ball is arranged in combination with the bearing shaft, a fixed plate is installed on the rear wall of the shaft seat, and the fixed plate is arranged in combination with the inner wall of the separation sieve frame.

[0011] Further, a fixed hole is formed in the side wall of the fixed plate, a screw hole is formed in the inner wall of the separation sieve frame at the fixed hole, a bolt body is assembled in the fixed hole and the screw hole, a circular groove is formed in the bottom end of the bolt body, a bolt rod is installed in the circular groove, and the bolt rod is screwed in the screw hole.

[0012] Further, a fixed ring is fixedly installed on the outer upper end of the bolt rod, an annular pressing piece, a spring and an annular rubber sheet are sleeved on the circumferential surface of the bolt rod, the annular pressing piece is located on the upper side of the fixed ring, the spring is located on the upper side of the annular pressing piece, the annular rubber sheet is located on the lower side of the fixed ring, an extrusion piece is fixedly installed at the lower end edge of the annular pressing piece, and a fixed block is fixedly installed on the upper end middle segment of the bolt body.

[0013] Further, a discharge port is formed in the front wall of the separation sieve frame between the vibrating plates, and a sand discharge port is formed in the outer wall of the separation sieve frame.

[0014] Further, a closing plate is installed on the top end of the embedded frame.

[0015] The beneficial effects of the patent are:

[0016] The separation sieve for separating the casting sand is characterized in that a separation box is arranged on the top end of the separation sieve base, a separation sieve frame is arranged on the top end of the separation box, the casting is placed in the separation sieve frame through vibration, the casting and the sand are separated, and the old sand and the residual iron are discharged separately, manual sorting is not required, time-consuming and laborious effects are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural schematic diagram of the patent.

[0018] Figure 2 is the separation sieve frame schematic diagram of the patent.

[0019] Figure 3 is the shaft seat schematic diagram of the patent.

[0020] Figure 4 is the bolt body schematic diagram of the patent.

[0021] Explanation of reference signs: 1, separation screen base; 2, separation box; 3, vibrating plate; 4, vibrating spring; 5, vibrating motor; 6, guide plate; 7, separation screen frame; 8, separation opening; 9, cast support; 10, sand discharge opening; 11, bearing shaft; 12, shaft seat; 13, mounting cavity; 14, discharge opening; 15, embedding opening; 16, embedding frame; 17, separation screen; 18, closing plate; 19, fixed plate; 20, bolt body; 201, bolt rod; 202, annular rubber sheet; 203, circular groove; 204, annular pressing sheet; 205, extrusion block; 203, fixing ring; 207, spring; 208, fixing block; 21, ball; 22, rotating cavity. DETAILED DESCRIPTION

[0022] The present patent will be further described below in conjunction with specific embodiments, which should be understood as merely illustrative of the present patent and not intended to limit the scope of the present patent. Furthermore, it should be understood that those skilled in the art can make various modifications or changes to the present patent after reading the content taught by the present patent, and these equivalent forms also fall within the scope defined by the appended claims of the application.

[0023] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 is a structural schematic diagram of the present patent, a separation screen for separating cast sand, comprising a separation screen base 1, the top end of the separation screen base 1 is equipped with a separation box 2, the top end of the separation box 2 is equipped with a cast support 9, the top end of the separation screen base 1 is divided into left and right two parts, the separation box 2 is installed on the upper end right side of the separation screen base 1;

[0024] The top end of the separation box 2 is provided with a separation opening 8, the separation opening 8 is equipped with a separation screen frame 7 inside, the separation screen frame 7 is fixed in the separation opening 8;

[0025] The upper and lower two side inner walls of the separation screen frame 7 are uniformly and equidistantly provided with mounting cavities 13 from left to right, each mounting cavity 13 is internally installed with a shaft seat 12, the positions of the upper and lower two shaft seats 12 are one-to-one corresponding, and the bearing shaft 11 is installed between the upper and lower two shaft seats 12, the bearing shaft 11 can rotate between the two shaft seats 12, and the castings separated can be discharged through the rotation of the bearing shaft 11;

[0026] The top end of the separation screen frame 7 is provided with an embedding opening 15 at the rear side of the mounting cavity 13, the embedding opening 15 is embedded with an embedding frame 16, the embedding frame 16 is internally installed with a separation screen 17, the separation screen 17 is located at the rear side of the bearing shaft 11, the castings are carried by the bearing shaft 11, and the sand is separated by the separation screen 17;

[0027] The upper end of the separation screen base 1 is located at the front side wall of the separation tank 2, and the two ends of the front side wall are provided with vibration plates 3, a guide plate 6 is arranged between the two vibration plates 3, a vibration motor 5 is arranged on the separation screen base 1, a vibration spring 4 is arranged on the side wall of the vibration plate 3, the vibration spring 4 is connected to the driving end of the vibration motor 5, and the vibration motor 5 and the vibration spring 4 are used to improve the vibration force of the guide plate 6 and the separation tank 2, so as to separate the castings on the separation screen frame 7.

[0028] The inner wall of the shaft seat 12 is uniformly and equidistantly provided with rotating cavities 22 along the axis thereof, the rotating cavities 22 are internally provided with rolling balls 21, the rolling balls 21 are arranged in close contact with the bearing shaft 11, the rear side wall of the shaft seat 12 is provided with a fixed plate 19, the fixed plate 19 is arranged in close contact with the inner wall of the separation screen frame 7, and the rolling of the rolling balls 21 in the rotating cavities 22 facilitates the rotation of the bearing shaft 11.

[0029] The side wall of the fixed plate 19 is provided with a fixed hole, the inner wall of the separation screen frame 7 is provided with a threaded hole at the fixed hole, a bolt body 20 is arranged in the fixed hole and the threaded hole, a circular recess 203 is formed at the bottom end of the bolt body 20, a bolt rod 201 is arranged in the circular recess 203, the bolt rod 201 is screwed in the threaded hole, the seat body of the shaft seat 12 is inserted into the mounting cavity 13, the fixed plate 19 is in close contact with the inner wall of the separation screen frame 7 and corresponds to the fixed hole and the threaded hole, and the fixed plate 19 is fixed by the bolt body 20.

[0030] The outer upper end of the bolt rod 201 is fixedly provided with a fixed ring 206, the circumferential surface of the bolt rod 201 is sleeved with an annular pressing plate 204, a spring 207 and an annular rubber sheet 202, the annular pressing plate 204 is located on the upper side of the fixed ring 206, the spring 207 is located on the upper side of the annular pressing plate 204, the annular rubber sheet 202 is located on the lower side of the fixed ring 206, an extrusion plate 205 is fixedly arranged at the lower end edge of the annular pressing plate 204, a fixed block 208 is fixedly arranged at the upper end middle segment of the bolt body 20, in the process of fastening, the annular rubber sheet 202 slides upward due to the action of the threaded hole 9, with further screwing, the annular rubber sheet 202 contacts the fixed ring 206, the annular rubber sheet 202 deforms due to the action of the fixed ring 206, the threaded hole 9 is sealed, the spring 207 is located on the upper side of the annular pressing plate 204, the annular pressing plate 204 is extruded downward due to the action of the spring 207, the extrusion block is extruded downward due to the action of the annular pressing plate 204, the extrusion block further extrudes the edge of the annular rubber sheet 202, and the sealing effect is improved.

[0031] The front side wall of the separation screen frame 7 is provided with a discharge port 14 between the vibration plates 3, and the outer wall of the separation screen frame 7 is provided with a sand discharge port 10, the castings on the bearing shaft 11 are discharged through the discharge port 14, and the separated molding sand in the separation tank 2 is discharged through the sand discharge port 10.

[0032] The top end of the embedded frame 16 is provided with a closing plate 18, the embedded frame 16 can enter the inside of the separating screen frame 7 at the embedded opening 15, at this time he closes the embedded opening 15 through the closing plate 18.

[0033] Working process and principle: in use, first, install the separating screen 17 into the separating screen frame 7, install the shaft seat 12 into the installation cavity 13, install the bearing shaft 11 into the separating screen 17, then, place the separating screen 17 at the rear side of the bearing shaft 11, add the casting into the top end of the separating box 2 through the casting bearing body 9, then, start the vibration motor 5, promote the vibration of the separating box 2, separate the casting and the sand through the separating screen frame 7, the separated sand enters into the separating box 2 through the separating screen 17, the casting is discharged through the discharge opening 14 and the flow guide plate 6 under the action of the bearing shaft 11.

[0034] It is obvious for those skilled in the art that the present patent is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present patent. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present patent is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present patent. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A separating sieve for separating foundry sand from a casting, comprising a separating sieve base (1), characterized in that: The top end of the separation screen base (1) is equipped with a separation box (2), and the top end of the separation box (2) is equipped with a casting carrier (9). The top end of the separation box (2) is provided with a separation opening (8), and the inside of the separation opening (8) is equipped with a separation screen frame (7). The upper and lower two side inner walls of the separation screen frame (7) are uniformly and equidistantly provided with mounting cavities (13) from left to right, and each mounting cavity (13) is internally provided with an axle seat (12), the positions of the upper and lower two axle seats (12) are one-to-one corresponding, and a bearing shaft (11) is installed between the upper and lower two axle seats (12). The top end of the separation screen frame (7) is provided with an embedded opening (15) at the rear side of the mounting cavity (13), the embedded opening (15) is embedded with an embedded frame (16), and the inside of the embedded frame (16) is provided with a separation screen (17). The upper end of the separation screen base (1) is provided with a vibration plate (3) at the front side wall of the separation box (2), a guide plate (6) is installed between the two vibration plates (3), a vibration motor (5) is installed on the separation screen base (1), a vibration spring (4) is installed on the side wall of the vibration plate (3), and the vibration spring (4) is connected to the driving end of the vibration motor (5).

2. A separating screen for separating foundry sand from a casting according to claim 1, characterized in that: The inner wall of the axle seat (12) is uniformly and equidistantly provided with a rotating cavity (22) along the axis, the rotating cavity (22) is internally provided with a ball (21), the ball (21) is arranged in close contact with the bearing shaft (11), and the rear wall of the axle seat (12) is provided with a fixed plate (19) arranged in close contact with the inner wall of the separation screen frame (7).

3. A separating screen for separating foundry sand from a casting according to claim 2, characterized in that: The side wall of the fixed plate (19) is provided with a fixed hole, the inner wall of the separation screen frame (7) is provided with a threaded hole at the fixed hole, and the fixed hole and the threaded hole are internally provided with a bolt body (20).

4. A separating screen for separating foundry sand from a casting according to claim 3, characterized in that: The outer upper end of the bolt rod (201) is fixedly provided with a fixed ring (206), the circumferential surface of the bolt rod (201) is sleeved with an annular pressing piece (204), a spring (207) and an annular rubber sheet (202), the annular pressing piece (204) is located on the upper side of the fixed ring (206), the spring (207) is located on the upper side of the annular pressing piece (204), the annular rubber sheet (202) is located on the lower side of the fixed ring (206), the lower end edge of the annular pressing piece (204) is fixedly provided with a pressing sheet (205), and the upper end of the bolt body (20) is fixedly provided with a fixed block (208).

5. A separating screen for separating sand from a casting according to claim 1, characterized in that: The front side wall of the separation screen frame (7) is provided with a discharge opening (14) between the vibration plates (3), and the outer wall of the separation screen frame (7) is provided with a sand discharge opening (10).

6. A separating screen for separating sand from a casting according to claim 1, characterized in that: The top end of the embedded frame (16) is provided with a closing plate (18).

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