Green foundry sand regeneration device capable of realizing rapid separation

Abstract

The utility model discloses a green foundry sand regeneration device capable of realizing quick separation, which comprises a foundry sand regeneration box, a grinding cavity, a vibrating cavity and a centrifugal cavity are sequentially arranged in the foundry sand regeneration box from top to bottom, and sieve pores are uniformly communicated between the grinding cavity and the vibrating cavity. Connecting holes are evenly communicated between the vibrating cavity and the centrifugal cavity, and a grinding motor is installed at the top end of the foundry sand regeneration box. Through the mutual meshing effect of the gear and the inner gear ring, the grinding roller is continuously rubbed with the grinding ring so as to conveniently crush and refine casting used sand, and the friction area between the casting used sand is increased by increasing the fineness of the casting used sand, so that the separation effect of the casting used sand in the subsequent machining process is improved, and the service life of the casting used sand is prolonged. And under the cooperation of a rotating fan blade and a scraping plate, the used casting sand at the bottom end can be turned and stirred upwards, so that the used casting sand can be ground uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of foundry sand regeneration, in particular to a green foundry sand regeneration device capable of realizing rapid separation. Background Art

[0002] Old sand regeneration refers to a foundry old sand treatment process that uses physical and chemical means such as mechanical friction, heating, and hydraulic methods to remove the failed or unfailed binder coating attached to the surface of old sand particles, so that the various process properties of the old sand can be restored. Its ultimate goal is to strive to reduce the amount of new sand used in foundry production, save economic investment, improve the quality of castings, and thus protect the natural environment;

[0003] Chinese patent authorization announcement number CN 219112803 U discloses a foundry old sand regeneration processing device, in which a flow channel for conveying the old sand is arranged in the regeneration core, a heating resistor is also arranged in the regeneration core to provide heating conditions for the flow channel, a vibration motor is connected outside the regeneration core, and the vibration motor drives the regeneration core to vibrate, combining dry regeneration with thermal regeneration, which can be applied to different types of adhesive films and improve the demolding rate. The above-mentioned prior art scheme has the following shortcomings: the device mainly uses a vibration motor to provide vibration force to the regeneration core, and then promotes the particle friction between the foundry old sand to achieve the separation effect, but the foundry old sand needs to be transported through the flow channel during the vibration process. Since the device is not provided with a pre-grinding or crushing effect, part of the foundry old sand is easily stuck in the flow channel due to the size of the particles, which then affects its vibration and friction effect, so there is room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a green foundry sand regeneration device that can achieve rapid separation, so as to solve the problem that the existing foundry sand regeneration device proposed in the above background technology is not easy to pre-crush and grind the old sand, which easily causes subsequent separation blockage.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a green foundry sand regeneration device capable of realizing rapid separation, comprising a foundry sand regeneration box, wherein a grinding chamber, a vibrating chamber and a centrifugal chamber are sequentially arranged inside the foundry sand regeneration box from top to bottom, sieve holes are evenly connected between the grinding chamber and the vibrating chamber, and connecting holes are evenly connected between the vibrating chamber and the centrifugal chamber, a grinding motor is installed at the top of the foundry sand regeneration box, and a rotating shaft is installed at the bottom end of the grinding motor, the bottom end of the rotating shaft extends to the inside of the grinding chamber and is installed with a rotating column, a grinding mechanism is arranged outside the rotating shaft, and grinding rollers are evenly installed at the bottom end of the grinding mechanism, a grinding ring is installed on the inner wall of the grinding chamber outside the grinding roller, a vibration mechanism is arranged inside the vibrating chamber, a centrifugal shaft is arranged inside the centrifugal chamber, and the centrifugal shaft is rotated at high speed by a centrifugal motor, a collecting box is installed on one side of the foundry sand regeneration box, and a sub-screen is installed inside the collecting box, and one side of the collecting box is connected with one side of the centrifugal chamber.

[0006] When a green foundry sand regeneration device capable of realizing rapid separation is used in the present technical solution, the mutual meshing action of the gear and the inner gear ring causes the grinding roller to continuously rub against the grinding ring so as to crush and refine the used foundry sand. By increasing the fineness of the used foundry sand, the friction area between the used foundry sand is increased to improve the separation effect in the subsequent processing. In addition, with the cooperation of the rotating fan blades and the scraper, the used foundry sand at the bottom is stirred upward so that the used foundry sand can be evenly ground and the accumulation of large particles of used foundry sand at the bottom is reduced.

[0007] Preferably, rotating blades are evenly installed at the bottom end of the outside of the rotating column, and the rotating blades are in a spiral structure. A scraper is installed at the bottom end of the rotating blade, and the scraper is inclined to the rotating blade.

[0008] Preferably, the grinding mechanism includes a cross plate, and the cross plate is sleeved on the outside of the rotating shaft, a rotating rod is evenly installed on the bottom end of the cross plate, and a gear is sleeved on the outside of the rotating rod, the bottom end of the rotating rod is connected to the top of the grinding roller, and an inner gear ring is installed inside the grinding cavity outside the gear, and the inner gear ring is meshed with the gear.

[0009] Preferably, the vibration mechanism includes a first vibrating plate, and the first vibrating plate is movably installed inside the vibration chamber, second vibrating plates are arranged on both sides of the first vibrating plate, and vibration springs are evenly installed on one side of the second vibrating plate, one end of the vibration springs is connected to the inner wall of the vibration chamber, and a vibration motor is installed at the bottom end of the first vibrating plate.

[0010] Preferably, the first vibrating plate and the second vibrating plate are close to each other, and a wavy channel is formed at the gap between them, and the top end of the channel corresponds to the position of the sieve hole, and the bottom end of the channel corresponds to the position of the connecting hole.

[0011] Preferably, the bottom end of the first vibrating plate is supported inside the vibrating chamber by a roller, and heating plates are installed inside the first vibrating plate and the second vibrating plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the green foundry sand regeneration device capable of realizing rapid separation improves the fineness of the old foundry sand through advance grinding, thereby improving the subsequent separation effect, and improves the separation effect under the centrifugal effect;

[0013] (1) Through the meshing action of the gear and the inner gear ring, the grinding roller continuously rubs against the grinding ring to crush and refine the used foundry sand. By increasing the fineness of the used foundry sand, the friction area between the used foundry sand is increased to improve the separation effect in the subsequent processing. In addition, with the cooperation of the rotating blades and the scraper, the used foundry sand at the bottom is stirred upward, so that the used foundry sand can be evenly ground and the accumulation of large particles of used foundry sand at the bottom is reduced;

[0014] (2) The vibration mechanism is used to increase the mutual friction between the old foundry sand, thereby facilitating better frictional removal of the castings, adhesive films, etc. attached to the foundry sand. In addition, the centrifugal effect is used to produce a separation effect by utilizing the different densities of different objects and their different centrifugal effects, thereby increasing the regeneration rate of the foundry sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the grinding chamber of the utility model from top view;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the grinding mechanism of the utility model when viewed from above;

[0019] Figure 4 This is a schematic diagram of the front cross-sectional structure of the vibration mechanism of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating fan blade distribution of the utility model.

[0021] Explanation of the reference numerals in the figure: 1. Casting sand regeneration box; 2. Grinding motor; 3. Rotating shaft; 4. Grinding mechanism; 401. Cross sleeve; 402. Rotating rod; 403. Gear; 404. Internal gear ring; 5. Grinding roller; 6. Rotating column; 7. Vibrating mechanism; 701. First vibrating plate; 702. Second vibrating plate; 703. Vibrating spring; 704. Vibrating motor; 8. Collecting box; 9. Screen; 10. Centrifugal chamber; 11. Centrifugal shaft; 12. Connecting hole; 13. Vibrating chamber; 14. Sieve hole; 15. Grinding chamber; 16. Heating plate; 17. Grinding ring; 18. Rotating fan blade; 19. Scraper. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a green foundry sand regeneration device capable of realizing rapid separation, comprising a foundry sand regeneration box 1, wherein a grinding chamber 15, a vibrating chamber 13 and a centrifugal chamber 10 are sequentially arranged inside the foundry sand regeneration box 1 from top to bottom, a sieve hole 14 is evenly connected between the grinding chamber 15 and the vibrating chamber 13, a connecting hole 12 is evenly connected between the vibrating chamber 13 and the centrifugal chamber 10, a grinding motor 2 is installed at the top of the foundry sand regeneration box 1, and a rotating shaft 3 is installed at the bottom end of the grinding motor 2, and the bottom end of the rotating shaft 3 extends to the inside of the grinding chamber 15 and is installed with a rotating column 6;

[0024] The bottom end of the rotating column 6 is evenly installed with rotating blades 18, and the rotating blades 18 are in a spiral structure. The bottom end of the rotating blades 18 is installed with a scraper 19, and the scraper 19 is inclined to the rotating blades 18;

[0025] Specifically, Figure 1 , Figure 2 and Figure 5 As shown, when in use, the fan blades 18 and the scraper 19 are rotated to stir the old foundry sand upwards, so as to avoid the accumulation of large particles of old foundry sand inside the grinding chamber 15 and improve the uniformity of grinding;

[0026] A grinding mechanism 4 is disposed outside the rotating shaft 3;

[0027] The grinding mechanism 4 includes a cross plate 401, and the cross plate 401 is sleeved on the outside of the rotating shaft 3, the bottom end of the cross plate 401 is evenly installed with a rotating rod 402, and the outside of the rotating rod 402 is sleeved with a gear 403, the bottom end of the rotating rod 402 is connected to the top of the grinding roller 5, and the inside of the grinding chamber 15 outside the gear 403 is installed with an inner gear ring 404, and the inner gear ring 404 and the gear 403 are meshed with each other;

[0028] Specifically, Figure 1 , Figure 3 As shown, when in use, the mutual meshing action between the gear 403 and the inner gear ring 404 causes the grinding roller 5 to continuously rotate, and cooperates with the action of the grinding ring 17 to crush the old foundry sand, thereby promoting the fine density of the old foundry sand, and then facilitating the increase of the friction contact area between the old sands, thereby improving the subsequent separation effect;

[0029] A grinding roller 5 is evenly installed at the bottom end of the grinding mechanism 4, a grinding ring 17 is installed on the inner wall of the grinding cavity 15 outside the grinding roller 5, and a vibration mechanism 7 is arranged inside the vibration cavity 13;

[0030] The vibration mechanism 7 includes a first vibration plate 701, and the first vibration plate 701 is movably installed inside the vibration chamber 13, and second vibration plates 702 are arranged on both sides of the first vibration plate 701, and vibration springs 703 are evenly installed on one side of the second vibration plate 702, and one end of the vibration spring 703 is connected to the inner wall of the vibration chamber 13, and a vibration motor 704 is installed at the bottom end of the first vibration plate 701;

[0031] The first vibrating plate 701 and the second vibrating plate 702 are close to each other, and a wave-shaped channel is formed at the gap between the two. At the same time, the top end of the channel corresponds to the position of the sieve hole 14, and the bottom end of the channel corresponds to the position of the connecting hole 12;

[0032] The bottom end of the first vibrating plate 701 is supported inside the vibrating chamber 13 through a roller, and a heating plate 16 is installed inside the first vibrating plate 701 and the second vibrating plate 702;

[0033] Specifically, Figure 1 , Figure 4 As shown, when in use, the vibration motor 704 causes the first vibrating plate 701 and the second vibrating plate 702 to collide with each other, thereby promoting the collision and friction effect between the old foundry sand during the flow process, thereby facilitating the separation of the sand, the foundry particles and the binder film;

[0034] A centrifugal shaft 11 is arranged inside the centrifugal chamber 10, and the centrifugal shaft 11 is rotated at high speed by a centrifugal motor. A collecting box 8 is installed on one side of the foundry sand regeneration box 1, and a sub-screen 9 is installed inside the collecting box 8. One side of the collecting box 8 is connected to one side of the centrifugal chamber 10.

[0035] Specifically, Figure 1 As shown, when in use, under the action of centrifugation, the mixture in the old foundry sand can be completely separated to achieve the regeneration of the old sand, so as to increase the green recycling effect in the casting process.

[0036] Working principle: When the utility model is used, firstly, the foundry sand is introduced into the foundry sand regeneration box 1, and the grinding motor 2 is started, so that the rotating shaft 3 drives the rotating column 6 to rotate, and then the rotating blade 18 drives the scraper 19 to scoop up the foundry sand at the bottom, so as to drive the foundry sand to be thrown onto the grinding ring 17. Since the rotation of the rotating shaft 3 drives the cross sleeve 401 to rotate, the gear 403 rotates and continuously meshes with the inner gear ring 404, and then the rotating rod 402 rotates and rotates, and then the grinding roller 5 grinds along the inner wall of the grinding ring 17, so that the particles of the foundry sand are finer, so as to facilitate the subsequent separation of impurities;

[0037] Secondly, the foundry sand falls from the sieve hole 14 into the vibrating chamber 13, and the vibration motor 704 is started so that the first vibrating plate 701 drives the second vibrating plate 702 to vibrate, and then cooperates with the heating effect of the heating plate 16 to make the foundry sand continue to fall in the channel and separate the adhesive film attached to the foundry sand;

[0038] Finally, the used foundry sand enters the centrifugal chamber 10 through the connecting hole 12. Under the high-speed rotation of the centrifugal shaft 11, the fine used foundry sand is centrifuged, and then the difference in gravity between the foundry sand, the binder film and the casting is used to achieve separation. The foundry sand and the binder film are thrown into the collection box 8, and then the binder film dust and the like are allowed to enter the outermost side of the collection box 8 under the action of the sub-screen 9.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A green foundry sand regeneration device capable of realizing rapid separation, comprising a foundry sand regeneration box (1), wherein the foundry sand regeneration box (1) is provided with a grinding chamber (15), a vibrating chamber (13) and a centrifugal chamber (10) in order from top to bottom, wherein the grinding chamber (15) and the vibrating chamber (13) are evenly connected by sieve holes (14), and the vibrating chamber (13) and the centrifugal chamber (10) are evenly connected by connecting holes (12), characterized in that: The top of the foundry sand regeneration box (1) is equipped with a grinding motor (2), and the bottom of the grinding motor (2) is equipped with a rotating shaft (3), the bottom of the rotating shaft (3) extends to the inside of the grinding chamber (15) and is equipped with a rotating column (6), the outside of the rotating shaft (3) is equipped with a grinding mechanism (4), and the bottom of the grinding mechanism (4) is evenly equipped with grinding rollers (5), the inner wall of the grinding chamber (15) outside the grinding rollers (5) is equipped with a grinding ring (17), the inside of the vibration chamber (13) is equipped with a vibration mechanism (7), the inside of the centrifugal chamber (10) is equipped with a centrifugal shaft (11), and the centrifugal shaft (11) is rotated at a high speed by the centrifugal motor, a collecting box (8) is equipped on one side of the foundry sand regeneration box (1), and a sub-screen (9) is equipped on the inside of the collecting box (8), and one side of the collecting box (8) is connected to one side of the centrifugal chamber (10).

2. A green foundry sand regeneration device capable of realizing rapid separation according to claim 1, characterized in that: Rotating blades (18) are evenly mounted on the bottom end of the outside of the rotating column (6), and the rotating blades (18) are in a spiral structure. A scraper (19) is mounted on the bottom end of the rotating blade (18), and the scraper (19) is inclined relative to the rotating blade (18).

3. A green foundry sand regeneration device capable of realizing rapid separation according to claim 1, characterized in that: The grinding mechanism (4) comprises a cross sleeve (401), and the cross sleeve (401) is sleeved on the outside of the rotating shaft (3), the bottom end of the cross sleeve (401) is evenly mounted with a rotating rod (402), and the outside of the rotating rod (402) is sleeved with a gear (403), the bottom end of the rotating rod (402) is connected to the top end of the grinding roller (5), and an inner gear ring (404) is mounted inside the grinding chamber (15) outside the gear (403), and the inner gear ring (404) and the gear (403) are meshed with each other.

4. A green foundry sand regeneration device capable of realizing rapid separation according to claim 1, characterized in that: The vibration mechanism (7) comprises a first vibration plate (701), and the first vibration plate (701) is movably mounted inside the vibration chamber (13), second vibration plates (702) are arranged on both sides of the first vibration plate (701), and vibration springs (703) are evenly mounted on one side of the second vibration plate (702), one end of the vibration spring (703) is connected to the inner wall of the vibration chamber (13), and a vibration motor (704) is mounted at the bottom end of the first vibration plate (701).

5. A green foundry sand regeneration device capable of realizing rapid separation according to claim 4, characterized in that: The first vibrating plate (701) and the second vibrating plate (702) are close to each other, and a wave-shaped channel is formed at the gap between the two. At the same time, the top end of the channel corresponds to the position of the sieve hole (14), and the bottom end of the channel corresponds to the position of the connection hole (12).

6. A green foundry sand regeneration device capable of realizing rapid separation according to claim 4, characterized in that: The bottom end of the first vibrating plate (701) is supported inside the vibrating chamber (13) via a roller, and a heating plate (16) is installed inside both the first vibrating plate (701) and the second vibrating plate (702).

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