Casting shakeout crushing device

Abstract

The utility model discloses a casting shakeout crushing device which comprises a box body, material guide blocks are symmetrically arranged in the box body, a filter frame is arranged below the material guide blocks, U-shaped blocks are symmetrically arranged on the two sides of the filter frame, fixing columns are symmetrically arranged on the surfaces of the bottoms of the material guide blocks, and the tail ends of the fixing columns penetrate through the surfaces of the bottoms of the U-shaped blocks to be provided with circular plates. A second spring is arranged between the top surface of the circular plate and the bottom surface of the U-shaped block on the fixing column, a rotating shaft is arranged below the filter frame in the box body, one end of the rotating shaft penetrates through the side wall of the box body and is provided with a motor, and a plurality of cams are arranged on the rotating shaft below the filter frame at equal intervals. The device has the advantages that the filter frame can be vibrated, the filter frame is prevented from being blocked to affect the filtering efficiency, meanwhile, the position of the feeding hopper can be adjusted, the occupied space of the device can be reduced, and sand dust can be prevented from overflowing outside by adjusting the position of the feeding hopper.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a casting falling sand crushing device. Background Art

[0002] The sand dropping of the casting is one of the important processes in the sand casting production process. Sand dropping is to break the casting mold after the casting is poured and cooled to a certain temperature, so that the casting mold is separated from the sand box, and the casting is separated from the molding sand. The commonly used sand dropping method in casting production is the vibration method, that is, the collision between the casting mold and the sand dropping machine is used to achieve sand dropping. In the sand dropping device in the prior art, after the molding sand is separated from the casting, a part of the molding sand will still remain in the state of molding sand blocks, and the molding sand blocks cannot pass through the filter, so they need to be broken manually, which is time-consuming and laborious; even if a part of the molding sand blocks pass through the filter, if they want to be used again, they still need to be broken into fine molding sand manually, and the production efficiency is low.

[0003] The existing public technology disclosed in the publication number CN213256930U discloses a crushing device for recovering molding sand in a casting process, including a support mechanism, a crushing mechanism is arranged on the support mechanism, the crushing mechanism is connected to the support mechanism, a feed hopper is arranged on one side of the support mechanism, a discharge hopper is arranged below the other side of the support mechanism, and a waste collection box is arranged at the lower side of the support mechanism. Through the above method, the present application provides a crushing device for recovering molding sand in a casting process, the molding sand is crushed by a rotating crushing rod, and then the molding sand is screened and dropped through an arc-shaped support screen, and then screened through an inclined screen, so that the fine sand is screened and dropped through the inclined screen, and falls into the waste collection box through a guide plate, and the molding sand above the inclined screen slides out through the discharge hopper for recycling again, thereby improving the recycling rate of the molding sand and ensuring the quality of the recovered molding sand.

[0004] Although the above patent improves the recycling rate of molding sand, there are still some shortcomings in its use. First, although the patent filters the molding sand through an inclined screen after it is crushed, the inclined screen used is a fixed structure, which is easy to cause the screen to be blocked during use, affecting the filtration efficiency. Secondly, the feed hopper used in the patent is a fixed structure, which will take up too much space during the transportation of the device and the sand dust raised during the crushing of the molding sand will overflow from the feed hopper, which is easy to affect the health of the workers. With respect to the problems in the relevant technology, no effective solution has been proposed so far. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a casting sand falling crushing device, which can vibrate the filter frame to prevent clogging of the filter frame and affect the filtering efficiency. At the same time, the position of the feed hopper can be adjusted, which can not only reduce the space occupied by the device, but also prevent sand and dust from overflowing to the outside by adjusting the position of the feed hopper, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages, the specific technical solutions adopted by the utility model are as follows:

[0009] 1. A casting sand falling crushing device, comprising a box body, wherein guide blocks are symmetrically arranged in the box body, a filter frame is arranged below the guide blocks, U-shaped blocks are symmetrically arranged on both sides of the filter frame, fixed columns are symmetrically arranged on the bottom surface of the guide blocks, a circular plate is arranged on the end of the fixed column passing through the bottom surface of the U-shaped block, a second spring is arranged on the fixed column between the top surface of the circular plate and the bottom surface of the U-shaped block, a rotating shaft is arranged in the box body below the filter frame, a motor is arranged at one end of the rotating shaft passing through the side wall of the box body, and a plurality of cams are equidistantly arranged on the rotating shaft below the filter frame.

[0010] Furthermore, a through hole is obliquely opened on the side wall of the box body near the top, a feed hopper is slidably arranged in the through hole, a plurality of limit grooves are evenly and equidistantly arranged on the bottom surface of the feed hopper, a fixed plate is arranged on the side wall of the box body below the feed hopper, a rectangular groove is arranged on the top surface of the fixed plate, a limit plate is slidably arranged in the rectangular groove, a pressing plate is arranged on the limit plate, the limit plate is adapted to the limit groove in size, and a first spring is arranged between the bottom surface of the limit plate and the bottom of the rectangular groove.

[0011] Furthermore, a centrifugal fan is provided on the top surface of the box body, and a dust box is provided on the top surface of the box body on one side of the centrifugal fan. One end of the centrifugal fan is connected to the dust box through a first ventilation pipe, and a second ventilation pipe is provided on the side wall of the dust box. A dust collecting net is provided at one end of the second ventilation pipe located in the dust box, and a dust suction port is provided at the other end of the second ventilation pipe that passes through the top surface of the box body.

[0012] Furthermore, a material guide plate is symmetrically arranged on the inner wall of the box below the feed hopper, and a crushing roller is symmetrically arranged below the material guide plate.

[0013] Furthermore, a collection box is provided in the box below the filter frame, and a first handle is provided on the collection box.

[0014] Furthermore, an observation window is provided on the side wall of the box body above the collection box.

[0015] Furthermore, the bottom surface of the box body is provided with supporting legs, and the supporting legs are provided in plurality and are evenly distributed at four corners of the bottom surface of the box body.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a casting sand crushing device, which has the following beneficial effects:

[0018] (1) The utility model adopts a structure of a filter frame, a U-shaped block, a second spring, a circular plate, a rotating shaft and a cam. By starting a motor to drive the rotating shaft to rotate, the rotating shaft drives the cam to rotate, which can intermittently collide with the bottom of the filter frame, thereby causing the filter frame itself to generate periodic up and down vibrations, thereby avoiding clogging of the filter screen at the bottom of the filter frame and improving the reliability of the device.

[0019] (2) The utility model adopts a structure of a feed hopper, a fixing plate, a limit plate and a limit groove. When the device is not in use or after feeding is completed, the feed hopper is pushed into the interior of the box by pressing the pressing plate, and then the pressing plate is released. At this time, under the elastic force of the first spring, the end of the limit plate moves up to the limit groove to fix the position of the feed hopper. This can not only reduce the space occupied by the device and facilitate the transportation and storage of the device, but also prevent the sand and dust in the box from overflowing to the outside and affecting the health of the workers. By adopting a structure of a centrifugal fan and a dust collecting box, when the device is in use, the sand and dust in the box can be sucked into the dust collecting net in the dust collecting box by starting the centrifugal fan, thereby reducing the amount of sand and dust in the box and preventing a large amount of sand and dust from overflowing from the box when the collection box is pulled out and affecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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 will be briefly introduced below. Obviously, the drawings described below are only 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.

[0021] Figure 1 It is a schematic diagram of the internal structure of a casting sand-falling crushing device proposed by the utility model;

[0022] Figure 2 This is a front view of a casting sand crushing device proposed by the utility model;

[0023] Figure 3 It is a structural schematic diagram of the fixing plate and the limiting plate proposed by the utility model;

[0024] Figure 4 It is a structural schematic diagram of the filter frame proposed by the utility model.

[0025] In the figure:

[0026] 1. Box body; 2. Collecting box; 3. Motor; 4. Rotating shaft; 5. Filter frame; 6. Guide block; 7. Fixed plate; 8. Limit plate; 9. Feed hopper; 10. Centrifugal fan; 11. First ventilation duct; 12. Dust collecting box; 13. Dust collecting net; 14. Second ventilation duct; 15. Dust suction port; 16. Guide plate; 17. Crushing roller; 18. Fixed column; 19. U-shaped block; 20. Second spring; 21. Round plate; 22. Cam; 23. Support leg; 24. Observation window; 25. Limit groove; 26. Press plate; 27. First spring. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] According to an embodiment of the utility model, a casting falling sand crushing device is provided.

[0029] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, a casting sand breaking device according to an embodiment of the utility model comprises a box body 1, wherein a guide block 6 is symmetrically arranged in the box body 1, a filter frame 5 is arranged below the guide block 6, U-shaped blocks 19 are symmetrically arranged on both sides of the filter frame 5, a fixing column 18 is symmetrically arranged on the bottom surface of the guide block 6, a circular plate 21 is arranged at the end of the fixing column 18 penetrating the bottom surface of the U-shaped block 19, a second spring 20 is arranged on the fixing column 18 between the top surface of the circular plate 21 and the bottom surface of the U-shaped block 19, a rotating shaft 4 is arranged below the filter frame 5 in the box body 1, a motor 3 is arranged at one end of the rotating shaft 4 penetrating the side wall of the box body 1, and a plurality of cams 22 are equidistantly arranged on the rotating shaft 4 below the filter frame 5, and the function of the cam 22 is to drive the rotating shaft 4 to rotate by starting the motor 3, and the rotation of the rotating shaft 4 drives the rotation of the cam 22 to intermittently collide with the bottom of the filter frame 5, so that the filter frame 5 itself generates periodic up and down vibrations, thereby avoiding the clogging of the filter screen at the bottom of the filter frame 5, thereby improving the reliability of the device.

[0030] In one embodiment, a through hole is obliquely opened near the top of the side wall of the box body 1, and a feed hopper 9 is slidably arranged in the through hole. A plurality of limiting grooves 25 are equidistantly and evenly arranged on the bottom surface of the feed hopper 9. A fixing plate 7 is arranged on the side wall of the box body 1 below the feed hopper 9, and a rectangular groove is arranged on the top surface of the fixing plate 7. A limiting plate 8 is slidably arranged in the rectangular groove, and a pressing plate 26 is arranged on the limiting plate 8. The limiting plate 8 is of the same size as the limiting groove 25, and a first spring 27 is arranged between the bottom surface of the limiting plate 8 and the bottom of the rectangular groove. The function of the limiting plate 8 is that when the device is not in use or the feeding is completed, the pressing plate 26 is pressed downward and the feed hopper 9 is pushed into the box body 1, and then the pressing plate 26 is released. At this time, under the elastic force of the first spring 27, the end of the limiting plate 8 moves up to the limiting groove 25 to fix the position of the feed hopper 9, which can not only reduce the occupied space of the device and facilitate the transportation and storage of the device, but also prevent the sand and dust in the box body 1 from overflowing to the outside and affecting the health of the staff.

[0031] In one embodiment, a centrifugal fan 10 is provided on the top surface of the box body 1, and a dust box 12 is provided on the top surface of the box body 1 on one side of the centrifugal fan 10. One end of the centrifugal fan 10 is connected to the dust box 12 through a first ventilation pipe 11, and a second ventilation pipe 14 is provided on the side wall of the dust box 12. The second ventilation pipe 14 is located in the dust box 12 and is provided with a dust collecting net 13 at one end. The other end of the second ventilation pipe 14 passes through the top surface of the box body 1 and is provided with a dust suction port 15. The function of the dust collecting net 13 is to collect sand and dust sucked into the dust box 12.

[0032] In one embodiment, a guide plate 16 is symmetrically arranged on the inner wall of the box body 1 below the feed hopper 9 , and a crushing roller 17 is symmetrically arranged below the guide plate 16 . The function of the crushing roller 17 is to crush the sand entering the box body 1 .

[0033] In one embodiment, a collecting box 2 is provided in the box body 1 below the filter frame 5. The collecting box 2 is provided with a first handle. The function of the collecting box 2 is to collect the filtered sand.

[0034] In one embodiment, an observation window 24 is provided on the side wall of the box body 1 above the collecting box 2 , and the function of the observation window 24 is to facilitate observation of the crushing of the sand in the box body 1 .

[0035] In one embodiment, the bottom surface of the box body 1 is provided with supporting legs 23 , and a plurality of supporting legs 23 are provided and evenly distributed at the four corners of the bottom surface of the box body 1 . The function of the supporting legs 23 is to provide certain support for the bottom surface of the box body 1 .

[0036] Working principle: When in use, first add sand into the box body 1 through the feed hopper 9, the sand in the box body 1 is crushed by the crushing roller 17, and the sand and dust generated in the box body 1 can be sucked into the dust collecting net 13 in the dust collecting box 12 by starting the centrifugal fan 10, so as to reduce the amount of sand and dust in the box body 1 and avoid a large amount of sand and dust in the box body 1 from overflowing and affecting the working environment when the collecting box 2 is pulled out. When the device is not in use or the feeding is completed, the pressing plate 26 is pressed downward and then the feed hopper 9 is pushed into the box body 1, and then the pressing plate 26 is released. At this time, under the elastic force of the first spring 27, the end of the limit plate 8 moves up to the limit groove 25 to fix the position of the feed hopper 9 It can not only reduce the space occupied by the device and facilitate the transportation and storage of the device, but also prevent the sand and dust in the box body 1 from overflowing to the outside and affecting the health of the staff. The sand crushed by the crushing roller 17 falls into the filter frame 5, and the shaft 4 is driven to rotate by the starting motor 3. The rotation of the shaft 4 drives the cam 22 to rotate, which can intermittently collide with the bottom of the filter frame 5, so that the filter frame 5 itself produces periodic up and down vibrations, thereby preventing the filter screen at the bottom of the filter frame 5 from being blocked, thereby improving the reliability of the device. The sand filtered by the filter frame 5 falls into the collection box 2 at the bottom of the box body 1, and the crushed sand can be taken out by pulling out the collection box 2 by the handle.

[0037] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A casting sand breaking device, comprising a box (1), characterized in that: A material guide block (6) is symmetrically arranged in the box body (1), a filter frame (5) is arranged below the material guide block (6), U-shaped blocks (19) are symmetrically arranged on both sides of the filter frame (5), a fixing column (18) is symmetrically arranged on the bottom surface of the material guide block (6), a circular plate (21) is arranged at the end of the fixing column (18) passing through the bottom surface of the U-shaped block (19), a second spring (20) is arranged on the fixing column (18) between the top surface of the circular plate (21) and the bottom surface of the U-shaped block (19), a rotating shaft (4) is arranged below the filter frame (5) in the box body (1), a motor (3) is arranged at one end of the rotating shaft (4) passing through the side wall of the box body (1), and a plurality of cams (22) are equidistantly arranged on the rotating shaft (4) below the filter frame (5).

2. A casting sand breaking device according to claim 1, characterized in that: A through hole is obliquely provided on the side wall of the box body (1) near the top, a feed hopper (9) is slidably arranged in the through hole, a plurality of limit grooves (25) are evenly and equidistantly arranged on the bottom surface of the feed hopper (9), a fixing plate (7) is provided on the side wall of the box body (1) below the feed hopper (9), a rectangular groove is provided on the top surface of the fixing plate (7), a limit plate (8) is slidably arranged in the rectangular groove, a pressing plate (26) is provided on the limit plate (8), the limit plate (8) and the limit groove (25) are of the same size, and a first spring (27) is provided between the bottom surface of the limit plate (8) and the bottom of the rectangular groove.

3. The casting sand breaking device according to claim 1, characterized in that: A centrifugal fan (10) is arranged on the top surface of the box body (1); a dust collecting box (12) is arranged on the top surface of the box body (1) on one side of the centrifugal fan (10); one end of the centrifugal fan (10) is connected to the dust collecting box (12) through a first ventilation pipe (11); a second ventilation pipe (14) is arranged through the side wall of the dust collecting box (12); one end of the second ventilation pipe (14) located in the dust collecting box (12) is provided with a dust collecting net (13); the other end of the second ventilation pipe (14) passes through the top surface of the box body (1) and is provided with a dust suction port (15).

4. The casting sand breaking device according to claim 1, characterized in that: A material guide plate (16) is symmetrically arranged on the inner wall of the box body (1) below the feed hopper (9), and a crushing roller (17) is symmetrically arranged below the material guide plate (16).

5. The casting sand breaking device according to claim 1, characterized in that: A collection box (2) is arranged in the box body (1) below the filter frame (5), and a first handle is arranged on the collection box (2).

6. The casting sand breaking device according to claim 1, characterized in that: An observation window (24) is provided on the side wall of the box body (1) above the collection box (2).

7. The casting sand breaking device according to claim 1, characterized in that: The bottom surface of the box body (1) is provided with supporting legs (23), and a plurality of the supporting legs (23) are provided and evenly distributed at four corners of the bottom surface of the box body (1).

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