Molding sand impurity removing device for iron casting processing

Abstract

The application relates to a type sand impurity removing device for iron casting machining, and belongs to the technical field of iron casting machining, which comprises a vibrating sieve separator, the vibrating sieve separator is provided with a broken sand discharge port and a sandstone discharge port, an iron removing mechanism is arranged at the broken sand discharge port of the vibrating sieve separator, the iron removing mechanism comprises a rack, a receiving pipe, an iron removing assembly, a lifting assembly, a bent pipe and a spiral discharge machine. The iron removing mechanism is arranged, the broken sand falls in the form of free fall in the iron removing mechanism, small iron scraps are easily adsorbed by the magnetic rod during the falling process due to the dispersion of the broken sand, the iron removing effect is good, and the recycling quality of the type sand is greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of iron casting processing, and in particular to a molding sand removal device for iron casting processing. Background Technology

[0002] Castings are metal shaped objects obtained by various casting methods. They are objects with a certain shape, size and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and then grinding and other subsequent processing methods.

[0003] The mold is made of molding sand. In order to save production costs, the molding sand is recycled after use. During recycling, large sand and iron blocks need to be removed. At the same time, small iron filings in the crushed sand also need to be removed. In the existing technology, a vibrating screen is generally used to remove large particles of impurities. The crushed sand is transported by a conveyor belt, and an electromagnetic adsorption device is installed above the conveyor belt to use magnetic force to adsorb small iron filings.

[0004] However, in actual use, the crushed sand will accumulate on the conveyor belt and move forward. The small iron filings at the bottom of the crushed sand are difficult to be attracted by the electromagnetic adsorption device, thus affecting the impurity removal effect of the molding sand. Utility Model Content

[0005] The purpose of this application is to provide a molding sand removal device for iron casting processing to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides a molding sand removal device for iron casting processing, which adopts the following technical solution:

[0007] A molding sand impurity removal device for iron casting processing includes a vibrating screen with a crushed sand outlet and a sand and gravel outlet. An iron removal mechanism is installed at the crushed sand outlet of the vibrating screen. The iron removal mechanism includes a frame, a receiving pipe, an iron removal component, a lifting component, a bent pipe, and a screw conveyor. The receiving pipe, iron removal component, lifting component, bent pipe, and screw conveyor are all mounted on the frame. The receiving pipe is located beside the vibrating screen, and the bent pipe is connected to the bottom end of the receiving pipe. One end of the screw conveyor is connected to the bent pipe. An installation groove is provided at the bottom of the bent pipe. The iron removal component includes a base, a levitation rod, an installation plate, and several magnetic rods. The levitation rod is vertically fixed to the base, the installation plate is fixed to the top of the levitation rod, and the several magnetic rods are evenly and vertically fixed to the installation plate. The base can seal and cover the opening of the installation groove. The lifting component is used to drive the iron removal component to rise and fall.

[0008] The lifting assembly is a lift, and the base is fixed on the lift.

[0009] A sealing gasket is fixed to the base at the position corresponding to the mounting groove.

[0010] Preferably, the mounting plate is a cone, and a plurality of mounting posts are uniformly fixed on the surface of the mounting plate. The upper surfaces of the plurality of mounting posts are on the same plane, the magnetic rod is fixed on the mounting posts, and neither the mounting posts nor the mounting plate are magnetic.

[0011] By adopting the above technical solution, the mounting plate is a cone shape, which can prevent sand fragments from staying on the mounting plate and facilitate the subsequent cleaning of small iron filings. When cleaning, the small iron filings are brushed down from the top of the magnetic rod, and the small iron filings fall onto the mounting plate and can quickly roll off the inclined surface.

[0012] Preferably, a mesh-like baffle is detachably installed inside the receiving pipe near the top.

[0013] By adopting the above technical solution, when the crushed sand passes through the grid baffle, the sand can be dispersed and fall off due to the diversion of the grid baffle, which makes it easier for the magnetic rod to attract small iron filings.

[0014] Preferably, in order to facilitate the collection of scrap iron blocks and sand and gravel, a receiving box is provided at the sand and gravel discharge port of the vibrating screen.

[0015] In summary, this application includes at least one of the following beneficial technical effects: the molding sand removal device for iron casting processing is equipped with an iron removal mechanism. The crushed sand falls freely within the iron removal mechanism. During the falling process, because the crushed sand is relatively dispersed, small iron filings are easily attracted by the magnetic rod, resulting in a good iron removal effect and greatly improving the recycling quality of molding sand. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a structural schematic diagram illustrating the iron removal mechanism in the embodiments of this application.

[0018] Figure 3 This is a schematic diagram illustrating the structure of the iron removal component in the embodiments of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Vibrating screen; 2. Iron removal mechanism; 21. Frame; 22. Receiving pipe; 23. Iron removal assembly; 231. Base; 232. Levitation rod; 233. Mounting plate; 234. Magnetic rod; 235. Mounting column; 24. Bend; 25. Screw conveyor; 3. Elevator; 4. Mesh baffle; 5. Receiving box. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail.

[0021] This application discloses a sand removal device for iron casting processing, referring to... Figure 1-3 The system includes a vibrating screen 1, which has a crushed sand outlet and a gravel outlet. A receiving box 5 is installed at the gravel outlet of the vibrating screen 1, and an iron removal mechanism 2 is installed at the crushed sand outlet. The iron removal mechanism 2 includes a frame 21, a receiving pipe 22, an iron removal assembly 23, a lifting assembly, a bend 24, and a screw conveyor 25. The receiving pipe 22, iron removal assembly 23, lifting assembly, bend 24, and screw conveyor 25 are all mounted on the frame 21. The receiving pipe 22 is located beside the vibrating screen 1, and the bend 24 is connected to the bottom end of the receiving pipe 22. One end of the screw conveyor 25 is connected to the bend 24. The pipes 24 are connected, and the bottom of the bent pipe 24 is provided with an installation groove. The iron removal component 23 includes a base 231, a levitation rod 232, an installation plate 233, and several magnetic rods 234. The levitation rod 232 is vertically fixed on the base 231, the installation plate 233 is fixed on the top of the levitation rod 232, and several magnetic rods 234 are evenly and vertically fixed on the installation plate 233. The base 231 can seal and cover the groove of the installation groove. Specifically, a sealing gasket is fixed on the base 231 at the position corresponding to the installation groove. The lifting component is used to drive the iron removal component 23 to lift. The lifting component is a lifting machine 3, and the base 231 is fixed on the lifting machine 3.

[0022] Reference Figure 3 The mounting plate 233 is a cone, and several mounting posts 235 are uniformly fixed on the surface of the mounting plate 233. The upper surfaces of the mounting posts 235 are on the same plane. The magnetic rod 234 is fixed on the mounting posts 235. Neither the mounting posts 235 nor the mounting plate 233 is magnetic.

[0023] The mounting disc 233 is a cone shape, which can prevent sand fragments from staying on the mounting disc 233 and facilitate the subsequent cleaning of small iron filings. When cleaning, the small iron filings are brushed down from the top of the magnetic rod 234. The small iron filings fall onto the mounting disc 233 and can quickly roll off the inclined surface (generally, an air gun is used for rinsing, and it is difficult for iron filings to remain on the conical surface of the cone, making cleaning relatively convenient).

[0024] Reference Figure 1-2 The receiving pipe 22 has a detachable mesh baffle 4 near the top. When the crushed sand passes through the mesh baffle 4, it can be dispersed and fall off by the mesh baffle 4, which makes it easier for the magnetic rod 234 to adsorb small iron filings.

[0025] The implementation principle of the molding sand removal device for iron casting processing in this application embodiment is as follows:

[0026] The molding sand waste is conveyed to the vibrating screen 1 by the conveyor. The vibrating screen 1 can screen out large iron blocks and sand and gravel. The crushed sand falls into the receiving pipe 22 and falls evenly after being dispersed by the grid baffle 4. During the falling process, because the crushed sand is relatively dispersed, small iron filings are easily attracted by the magnetic rod 234, resulting in good iron removal effect. After iron removal, the crushed sand enters the screw discharge machine 25 through the bent pipe 24 to achieve uniform discharge.

[0027] After the magnetic rod 234 has been attracted for a period of time, the lifting component drives the iron removal component 23 to move downwards, and the staff can brush off the scrap iron on the magnetic rod 234 and clean it, which is quite convenient to use.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A device for removing impurities from molding sand used in iron casting processing, comprising a vibrating screen (1), wherein the vibrating screen (1) has a crushed sand outlet and a sand and gravel outlet, characterized in that: The vibrating screen (1) is equipped with an iron removal mechanism (2) at the crushed sand discharge port. The iron removal mechanism (2) includes a frame (21), a receiving pipe (22), an iron removal component (23), a lifting component, a bend (24), and a screw conveyor (25). The receiving pipe (22), the iron removal component (23), the lifting component, the bend (24), and the screw conveyor (25) are all installed on the frame (21). The receiving pipe (22) is located next to the vibrating screen (1). The bend (24) is connected to the bottom end of the receiving pipe (22). One end of the screw conveyor (25) is connected to the bend. (24) Connected, the bottom of the bent pipe (24) is provided with an installation groove, the iron removal assembly (23) includes a base (231), a levitation rod (232), an installation plate (233) and several magnetic rods (234), the levitation rod (232) is vertically fixed on the base (231), the installation plate (233) is fixed on the top of the levitation rod (232), and several magnetic rods (234) are evenly and vertically fixed on the installation plate (233). The base (231) can seal and cover the groove of the installation groove. The lifting assembly is used to drive the iron removal assembly (23) to lift.

2. The molding sand removal device for iron casting processing according to claim 1, characterized in that: The lifting assembly is a lift (3), and the base (231) is fixed on the lift (3).

3. The molding sand removal device for iron casting processing according to claim 1, characterized in that: The base (231) is fixed with a sealing gasket at the position corresponding to the mounting groove.

4. The molding sand removal device for iron casting processing according to claim 1, characterized in that: The mounting plate (233) is a cone, and a plurality of mounting posts (235) are uniformly fixed on the surface of the mounting plate (233). The upper surfaces of the plurality of mounting posts (235) are on the same plane. The magnetic rod (234) is fixed on the mounting posts (235). Neither the mounting posts (235) nor the mounting plate (233) are magnetic.

5. The molding sand removal device for iron casting processing according to claim 1, characterized in that: A mesh baffle (4) is detachably installed inside the receiving pipe (22) near the top.

6. The molding sand removal device for iron casting processing according to claim 1, characterized in that: The vibrating screen (1) is equipped with a receiving box (5) at the sand and gravel discharge port.

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