Shakeout machine vibrating screen for casting sand removal

Abstract

The utility model discloses a shakeout machine vibrating screen for casting sand removal, which is mainly applied to the technical field of casting production and comprises a round pipe, an I-shaped beam, channel steel, a screen mesh, a fence, a shakeout hopper, a motor mounting plate, a support frame and a screen mesh support frame, the top of the shakeout hopper is provided with the screen mesh support frame, and the screen mesh is placed on the screen mesh support frame. A fence is arranged at the top of the shakeout hopper, a round pipe, an I-shaped beam and channel steel are arranged on the lower portion of the shakeout hopper in a staggered mode, supporting frames are arranged between the screen supporting frame and the round pipe, the I-shaped beam and the channel steel, a motor mounting plate is arranged on the outer edge of the side, opposite to the shakeout hopper, of the shakeout hopper, and a vibration motor is mounted on the motor mounting plate. The shakeout machine vibrating screen for casting sand removal is scientific and reasonable in structural design, high in bearing capacity, low in manufacturing cost, high in sand removal efficiency and capable of rapidly completing separation of castings and crude sand and effectively improving the casting manufacturing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of casting production, in particular to a shakeout machine vibrating screen for sand cleaning of castings. Background Art

[0002] Casting sand cleaning is an important part of the cleaning process in the casting process. The main purpose is to break the mold after the mold is poured and cooled to a certain temperature, so that the mold is separated from the sand box and the casting is separated from the sand. Cleaning belongs to the post-processing process of castings, which includes sand cleaning, core removal and removal of residual sand on the surface of castings, removal of pouring and riser, surface cleaning, removal of excess metal - removal of fins, pouring and riser residues, heat treatment, defect inspection, repair and correction, and primer application. The cleaning process is numerous and labor-intensive; it is often accompanied by smoke, dust, vibration, Class I noise and radiant heat, and low production efficiency, which has always been a weak link in casting production.

[0003] At present, the commonly used sand-falling method in casting production is the vibration method (impact method), that is, the collision between the mold and the sand-falling machine is used to achieve sand-falling. Sand-falling machines are divided into mechanical vibration type and electromagnetic vibration type according to the method of generating vibration. Mechanical vibration sand-falling machines are divided into eccentric vibration type and inertial vibration type, and the latter is more commonly used. In recent years, although mechanical vibration sand-falling equipment has developed to a certain extent, its mechanization degree lags far behind the development of molding mechanization.

[0004] Nowadays, enterprises often use sand-falling machines to deal with the sanding of castings, but there are still problems such as poor screen carrying capacity, inability to simultaneously remove sand from multiple small and medium-sized castings, low sand-removing efficiency, and difficulty in equipment maintenance. Utility Model Content

[0005] The utility model provides a shakeout machine vibrating screen for casting sand cleaning, which solves the problems of low sand cleaning efficiency, poor bearing capacity and great maintenance difficulty of the existing shakeout machine vibrating screen.

[0006] The technical solution of the utility model is: a vibrating screen of a sand-falling machine for sand cleaning of castings, comprising a circular tube, an I-beam, a channel steel, a screen, a fence, a sand-falling bucket, a motor mounting plate, a support frame, and a screen support frame, wherein a screen support frame is provided on the top of the sand-falling bucket, a screen is provided on the screen support frame, a fence is provided on the top of the sand-falling bucket, circular tubes, I-beams, and channel steels are alternately arranged at the lower part of the sand-falling bucket, a support frame is provided between the screen support frame and the circular tubes, I-beams, and channel steels, a motor mounting plate is provided on the outer edge of the opposite side of the sand-falling bucket, and a vibration motor is installed on the motor mounting plate.

[0007] Preferably, bosses are alternately arranged on the top and bottom of the screen.

[0008] Preferably, the round tube passes through both sides of the sand dropping hopper and is welded to the motor mounting plate.

[0009] Preferably, the circular tube has reinforcing ribs at both ends.

[0010] Preferably, the screen is manufactured by casting.

[0011] Preferably, the fence is at least 3600 mm long, at least 2775 mm wide and at least 260 mm high.

[0012] Preferably, spring retaining seats (111) are provided at the lower edges of both sides of the sand dropping hopper.

[0013] Preferably, the mesh diameter of the sieve does not exceed 60 mm.

[0014] Principle of the utility model: In order to solve the problem of low separation efficiency of the vibrating screen of the sand-falling machine, the utility model adopts a large-sized screen and more dense screen holes, which can perform sand-falling operations on multiple castings at one time, with high sand-falling efficiency. The vibration motor provides exciting force to shake off the original sand in the cavity and gap of the casting, thereby improving the cleaning efficiency. Since the sand-clearing operations of multiple small and medium-sized castings are to be performed, the load-bearing capacity of the screen and the supporting structure is relatively high. There is a screen support frame under the screen, which is welded with T-shaped steel, has strong load-bearing capacity and low manufacturing cost. Due to the space below the sand-falling hopper, the screen support frame has a large capacity of 2000 tons and a large capacity of 1000 tons. There is a large amount of free space, and staggered round tubes, I-beams and channel steels are added under the screen support frame. There is a support frame between the screen support frame and the round tubes, I-beams and channel steels to further improve the bearing capacity of the screen and avoid deformation of the screen due to insufficient bearing capacity during use, which will affect the normal operation of the sand falling machine. There is a motor mounting plate on the opposite side of the sand falling hopper, and a vibration motor is installed on the motor mounting plate. There is an eccentric block at the output shaft end of the vibration motor, and the rotation of the motor drives the eccentric block to generate an exciting force in the vertical direction. After being further strengthened by the spring, its sand cleaning efficiency is higher.

[0015] The beneficial effects of the utility model are as follows: a vibrating screen for a sand-falling machine used for sand cleaning of castings has a scientific and reasonable structural design, a strong load-bearing capacity, a low manufacturing cost, a high sand cleaning efficiency, can quickly complete the separation of castings and raw sand, and effectively improves the manufacturing efficiency of castings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure decomposition of the utility model;

[0018] Figure 3 It is a three-dimensional cross-sectional view of the utility model;

[0019] In the figure, 101-screen, 102-fence, 103-sand dropping bucket, 104-shaking bin, 105-I-beam, 106-motor mounting plate, 107-reinforcement ribs, 108-support frame, 109-channel steel, 110-screen support frame, 111-spring holder. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is as follows: Figure 1 , Figure 2 , Figure 3 As shown, a vibrating screen of a sand-falling machine for sand cleaning of castings comprises a circular tube 104, an I-beam 105, a channel steel 109, a screen 101, a fence 102, a sand-falling bucket 103, a motor mounting plate 106, a support frame 108, and a screen support frame 110. A screen support frame 110 is provided on the top of the sand-falling bucket 103, a screen 101 is provided on the screen support frame 110, a fence 102 is provided on the top of the sand-falling bucket 103, circular tubes 104, I-beams 105, and channel steels 109 are alternately arranged at the lower part of the sand-falling bucket 103, a support frame 108 is provided between the screen support frame 110 and the circular tube 104, the I-beam 105, and the channel steel 109, a motor mounting plate 106 is provided on the outer edge of the opposite side of the sand-falling bucket 103, and a vibration motor is installed on the motor mounting plate 106. In this embodiment, after the round tube 104, I-beam 105, channel steel 109, screen 101, fence 102, sand bucket 103, motor mounting plate 106, support frame 108, and screen support frame 110 are welded, they must be annealed as a whole to eliminate stress before they can be put into use.

[0021] Specifically, Figure 1 , Figure 2 , Figure 3 As shown, bosses are alternately arranged on the top and bottom of the screen 101. In this technical solution, the bosses serve as reinforcing ribs, which effectively improve the structural strength of the screen 101 and prevent the screen 101 from being squeezed and deformed by the casting.

[0022] Specifically, Figure 1 , Figure 2 As shown, the circular tube 104 passes through both sides of the sand bucket 103 and is welded to the motor mounting plate 106. In this technical solution, the two sides of the sand bucket 103 are connected by the circular tube 104 to improve the structural rigidity of the sand bucket 103, the motor mounting plate 106 is welded to the circular tube 104, and the vibration motor is bolted to the motor mounting plate 106, which is convenient for maintenance of the vibration screen.

[0023] Specifically, Figure 1 , Figure 2 As shown, the two ends of the circular tube 104 are provided with reinforcing ribs 107. In the present technical solution, the reinforcing ribs 107 improve the structural strength of the ends of the circular tube 104, and alleviate fatigue damage of the circular tube 104 caused by long-term vibration of the vibration motor.

[0024] Specifically, the screen 101 is manufactured by casting, and the screen 101 manufactured by casting has low manufacturing cost.

[0025] Specifically, the fence 102 is at least 3600 mm long, at least 2775 mm wide, and at least 260 mm high. The fence 102 of the above dimensions can accommodate a large number of small and medium-sized castings for sand cleaning operations.

[0026] Specifically, Figure 3 As shown, there are spring holders 111 at the lower edges of both sides of the sand bucket 103. A spring is installed at the bottom of the spring holder 111 to cooperate with the vibration screen base to avoid direct collision between the vibration screen and the base and reduce noise during operation.

[0027] Specifically, the diameter of the mesh hole of the screen 101 does not exceed 60 mm. With the mesh hole of the above size, most of the agglomerated raw sand can pass through quickly, thereby improving the sand cleaning efficiency.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibrating screen for a sand-falling machine for sand removal of castings, comprising a round tube (104), an I-beam (105), and a channel steel (109), characterized in that: The invention also comprises a screen (101), a fence (102), a sand falling bucket (103), a motor mounting plate (106), a support frame (108), and a screen support frame (110). The top of the sand falling bucket (103) is provided with a screen support frame (110), the screen support frame (110) is provided with a screen (101), the top of the sand falling bucket (103) is provided with a fence (102), the lower part of the sand falling bucket (103) is provided with round tubes (104), I-beams (105), and channel steels (109) in an alternating manner, a support frame (108) is provided between the screen support frame (110) and the round tubes (104), I-beams (105), and channel steels (109), a motor mounting plate (106) is provided on the outer edge of one side opposite to the sand falling bucket (103), and a vibration motor is installed on the motor mounting plate (106).

2. A shakeout machine vibrating screen for casting sand cleaning according to claim 1, characterized in that: Bosses are alternately arranged on the top and bottom of the screen (101).

3. The vibrating screen for a sand-falling machine for cleaning castings according to claim 1, characterized in that: The circular tube (104) passes through both sides of the sand dropping hopper (103) and is welded to the motor mounting plate (106).

4. The vibrating screen for a sand-falling machine for cleaning castings according to claim 1, characterized in that: The two ends of the circular tube (104) are provided with reinforcing ribs (107).

5. The vibrating screen for a sand-falling machine for cleaning castings according to claim 2, characterized in that: The screen (101) is manufactured by casting.

6. The vibrating screen for a sand-falling machine for cleaning castings according to claim 1, characterized in that: The fence (102) is at least 3600 mm long, at least 2775 mm wide, and at least 260 mm high.

7. The vibrating screen for a sand-falling machine for cleaning castings according to claim 1, characterized in that: The lower edges of both sides of the sand dropping bucket (103) are provided with spring clamping seats (111).

8. The vibrating screen for a sand-falling machine for cleaning castings according to claim 1, characterized in that: The mesh diameter of the sieve (101) does not exceed 60 mm.

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