Piston ring casting knockout apparatus

Abstract

A piston ring casting shakeout equipment relates to the field of shakeout device, including shakeout machine base, shakeout box, vibration motor and fixed support, the shakeout machine base is fixedly connected with the both sides of shakeout box outer wall, vibration motor is equipped with two, two vibration motors are fixedly connected on the both sides of shakeout box outer wall, the both ends of fixed support are fixedly connected with the inner wall of shakeout box, the inside of shakeout box is equipped with swing shearing sand cleaning screening part, the screen hole anti-blocking part is equipped on swing shearing sand cleaning screening part, the beneficial effect lies in: the piston ring in shakeout box is turned over in shakeout box, makes the sand adhered on piston ring directly contact the vibrating screen plate, through directly contacting vibrating screen plate makes the sand adhered on piston ring more easily fall off, avoids the sand adhered on piston ring cleaning degree low caused by the sand on part of piston ring not contacting vibrating screen plate, thereby improves the efficiency of shakeout.

Description

Technical Field

[0001] This utility model relates to the technical field of sand removal devices, and in particular to a sand removal device for piston ring casting. Background Technology

[0002] As is well known, piston ring sand removal is one of the important processes in the casting production process. It involves breaking the mold after it has been poured and cooled to a certain temperature, separating the mold from the sand, and separating the piston ring from the sand. For cast iron piston rings with larger wall thickness, a high-efficiency and flexible vibrating sand removal machine is generally selected.

[0003] Chinese Patent CN213997757U describes a sand removal plate device for a sand removal machine. It includes an outer shell with an upward opening and a sand removal plate body disposed at the opening of the outer shell. A crushing mechanism is provided in the lower inner cavity of the sand removal plate body, and a conveying auger is provided at the bottom of the inner cavity. A sand outlet is provided on one side of the outer shell, communicating with the inner cavity, and one end of the conveying auger is located at the sand outlet. However, in actual use, the following problems still exist:

[0004] In a vibratory sand casting machine, the mixture of piston rings and molding sand is vibrated by a vibrating motor to dislodge the molding sand from the piston rings. The molding sand is then screened into the sand casting box through a sieve plate, leaving the piston rings above the vibratory sand casting machine. However, the molding sand used to cast piston rings becomes sticky when it comes into contact with high-temperature molten steel, and it adheres to the piston rings. During the vibratory sand casting process, some of the molding sand adhering to the piston rings cannot directly contact the vibratory sand casting machine and only indirectly transmits vibration through the piston rings. As a result, some of the molding sand still adheres to the piston rings, leading to low sand casting efficiency.

[0005] Therefore, a piston ring casting sand removal device is proposed. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a piston ring casting sand removal device.

[0007] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0008] A piston ring casting sand removal device includes a sand removal machine base, a sand removal box, a vibrating motor, and a fixed support. The sand removal machine base is fixedly connected to both sides of the outer wall of the sand removal box. Two vibrating motors are provided, each fixedly connected to both sides of the outer wall of the sand removal box. Both ends of the fixed support are fixedly connected to the inner wall of the sand removal box. A swing shearing sand cleaning and screening component is provided inside the sand removal box. Both ends of the swing shearing sand cleaning and screening component are fixedly connected to the inner wall of the sand removal box, and both sides of the swing shearing sand cleaning and screening component are in contact with the inner wall of the sand removal box. The lower surface of the swing shearing sand cleaning and screening component is fixedly connected to the upper surface of the fixed support. A screen hole anti-clogging component is provided on the swing shearing sand cleaning and screening component. The fixed end of the screen hole anti-clogging component is connected to the swing shearing sand cleaning and screening component, and the movable end of the screen hole anti-clogging component is in contact with the swing shearing sand cleaning and screening component.

[0009] The oscillating shearing sand-cleaning screening component includes support columns, a screen plate, and a sliding assembly. Several support columns are evenly distributed within the sand drop box. Each support column includes a base support and protrusions. The two ends of the base support are fixedly connected to the inner wall of the sand drop box. The lower surface of the base support is fixedly connected to the upper surface of the fixed bracket. The upper surface of the base support is fixedly connected to the lower surface of the protrusions. Several protrusions are evenly distributed on the base support, and a screen is formed between two adjacent protrusions on the support column. The groove on the sieve plate on the support column corresponds to the position of the protrusion on the adjacent support columns on both sides, and the length of the groove on the sieve plate on the support column corresponds to the length of the protrusion on the adjacent support columns on both sides. The sieve plate is provided in the groove, and the two ends of the sieve plate are respectively in contact with the two adjacent protrusions. The two sides of the sieve plate are respectively slidably connected to the adjacent protrusions on both sides of the sieve plate through the sliding assembly. The fixed end of the sieve hole anti-clogging component is fixedly connected to the support column, and the movable end of the sieve hole anti-clogging component is in contact with the sieve plate.

[0010] The sliding component is a sliding block. The side of the protrusion is provided with a sliding groove. The sliding end of the sliding block is located in the sliding groove and is slidably connected to the protrusion. The fixed end of the sliding block is fixedly connected to the side of the sieve plate.

[0011] The sliding groove is an arc-shaped groove, and the arc-shaped axes of the two sliding grooves on the two protrusions on both sides of the screen plate are collinear. The sliding end of the sliding block is arc-shaped, and the axis of the arc-shaped sliding end of the sliding block is collinear with the axis of the arc-shaped sliding groove.

[0012] The sieve plate has a rotating shaft in the groove. The two ends of the rotating shaft are fixedly connected to the protrusions adjacent to the two ends of the rotating shaft. The sieve plate has a rotating shaft hole in the center, which passes through both ends of the sieve plate. The rotating shaft is located in the rotating shaft hole and is rotatably connected to the sieve plate. The axis of the rotating shaft is collinear with the arc-shaped axis of the sliding groove.

[0013] The screen hole anti-clogging component includes a fixing plate and an impact column. The fixing plate is fixedly connected to the protrusion and is located above the screen plate. The lower surface of the fixing plate is fixedly connected to the top end of the impact column, and the bottom end of the impact column is in contact with the screen plate.

[0014] The screen hole anti-clogging component includes a fixing plate and an impact column. The fixing plate is fixedly connected to the side of the supporting bottom column and is located below the screen plate. The upper surface of the fixing plate is fixedly connected to the bottom end of the impact column, and the top end of the impact column is in contact with the screen plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This piston ring casting sand removal equipment, during operation, uses a screen plate that vibrates on both sides, causing it to swing up and down. The piston rings inside the sand removal box tumble, allowing the molding sand adhering to the piston rings to directly contact the vibrating screen plate. This direct contact makes it easier for the molding sand adhering to the piston rings to detach, avoiding the low cleanliness caused by some molding sand not contacting the vibrating screen plate, thus improving sand removal efficiency. Two adjacent screen plates swing up and down alternately, using the squeezing force between the two screen plates to crush clumps of molding sand or remove molding sand adhering to the piston rings, further improving sand removal efficiency. The secondary vibration generated by the cooperation of the screen plate and the impact column prevents screen hole clogging, further improving sand removal efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of the swing shear sand-cleaning screening component of this utility model;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A is shown;

[0022] Figure 6 This is a schematic cross-sectional view of the sliding groove of the oscillating shear sand-cleaning screening component of this utility model;

[0023] Figure 7 This utility model Figure 6 A schematic diagram of the enlarged cross-sectional structure at point B shown;

[0024] Figure 8 This is a schematic cross-sectional view of the connection between the rotating shaft and the protrusion of the oscillating shear sand cleaning and screening component of this utility model.

[0025] Figure 9 This utility model Figure 8 A magnified cross-sectional view of point C is shown.

[0026] 1. Sand removal machine base; 2. Sand removal box; 3. Vibration motor; 4. Fixed bracket; 5. Support column; 6. Screen plate; 7. Support bottom column; 8. Protrusion; 9. Screen plate groove; 10. Sliding block; 11. Sliding groove; 12. Rotating shaft; 13. Rotating shaft hole; 14. Fixed plate; 15. Impact column. Detailed Implementation

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0029] like Figure 1-3As shown, a piston ring casting sand removal device includes a sand removal machine base 1, a sand removal box 2, a vibrating motor 3, and a fixed bracket 4. The sand removal machine base 1 is fixedly connected to both sides of the outer wall of the sand removal box 2. Two vibrating motors 3 are provided, and the two vibrating motors 3 are respectively fixedly connected to both sides of the outer wall of the sand removal box 2. The two ends of the fixed bracket 4 are respectively fixedly connected to the inner wall of the sand removal box 2. A swing shearing sand removal and screening component is provided inside the sand removal box 2. The two ends of the swing shearing sand removal and screening component are respectively fixedly connected to the inner wall of the sand removal box 2, and both sides of the swing shearing sand removal and screening component are in contact with the inner wall of the sand removal box 2. The lower surface of the swing shearing sand removal and screening component is fixedly connected to the upper surface of the fixed bracket 4. A screen hole anti-clogging component is provided on the swing shearing sand removal and screening component. The fixed end of the screen hole anti-clogging component is connected to the swing shearing sand removal and screening component, and the movable end of the screen hole anti-clogging component is in contact with the swing shearing sand removal and screening component.

[0030] like Figure 2-5 As shown, the oscillating shear sand-cleaning screening component includes support columns 5, a screen plate 6, and a sliding assembly. Several support columns 5 are evenly distributed within the sand drop box 2. Each support column 5 includes a support base column 7 and protrusions 8. The two ends of the support base column 7 are fixedly connected to the inner wall of the sand drop box 2. The lower surface of the support base column 7 is fixedly connected to the upper surface of the fixed bracket 4. The upper surface of the support base column 7 is fixedly connected to the lower surface of the protrusions 8. Several protrusions 8 are evenly distributed on the support base column 7. Two adjacent protrusions 8 on the support column 5... A sieve plate groove 9 is formed between the support column 5 and the support column 5. The position of the sieve plate groove 9 on the support column 5 corresponds to the position of the protrusion 8 on the adjacent support column 5 on both sides. The length of the sieve plate groove 9 on the support column 5 corresponds to the length of the protrusion 8 on the adjacent support column 5 on both sides. A sieve plate 6 is provided in the sieve plate groove 9. The two ends of the sieve plate 6 are in contact with the two adjacent protrusions 8 respectively. The two sides of the sieve plate 6 are slidably connected to the adjacent protrusions 8 on both sides of the sieve plate 6 through sliding components. The fixed end of the sieve hole anti-clogging component is fixedly connected to the support column 5, and the movable end of the sieve hole anti-clogging component is in contact with the sieve plate 6.

[0031] like Figure 6-9 As shown, the sliding component is a sliding block 10. The side of the protrusion 8 is provided with a sliding groove 11. The sliding end of the sliding block 10 is located in the sliding groove 11 and is slidably connected to the protrusion 8. The fixed end of the sliding block 10 is fixedly connected to the side of the sieve plate 6.

[0032] like Figure 6-9 As shown, the sliding groove 11 is an arc-shaped groove, and the arc-shaped axes of the two sliding grooves 11 on the two adjacent sieve plates 6 on both sides of the protrusion 8 are collinear. The sliding end of the sliding block 10 is arc-shaped, and the axis of the arc-shaped sliding end of the sliding block 10 is collinear with the axis of the arc-shaped sliding groove 11.

[0033] like Figure 6-9As shown, a rotating shaft 12 is provided in the groove 9 of the sieve plate. The two ends of the rotating shaft 12 are fixedly connected to the protrusions 8 adjacent to the two ends of the rotating shaft 12. A rotating shaft hole 13 is provided in the center of the sieve plate 6. The rotating shaft hole 13 passes through both ends of the sieve plate 6. The rotating shaft 12 is located in the rotating shaft hole 13 and is rotatably connected to the sieve plate 6. The axis of the rotating shaft 12 is collinear with the arc-shaped axis of the sliding groove 11.

[0034] like Figure 4 , Figure 7 and Figure 9 As shown, the screen hole anti-clogging component includes a fixing plate 14 and an impact column 15. The fixing plate 14 is fixedly connected to the protrusion 8 and is located above the screen plate 6. The lower surface of the fixing plate 14 is fixedly connected to the top of the impact column 15, and the bottom end of the impact column 15 is in contact with the screen plate 6.

[0035] like Figure 4 , Figure 7 and Figure 9 As shown, the screen hole anti-clogging component includes a fixing plate 14 and an impact column 15. The fixing plate 14 is fixedly connected to the side of the supporting bottom column 7, and the fixing plate 14 is located below the screen plate 6. The upper surface of the fixing plate 14 is fixedly connected to the bottom end of the impact column 15, and the top end of the impact column 15 is in contact with the screen plate 6.

[0036] The work process is as follows:

[0037] S1, during use, start the vibration motor 3. The vibration motor 3 transmits the generated vibration to the oscillating shearing sand cleaning and screening component through the sand removal machine base 1, sand removal box 2, fixed bracket 4, and support column 5. The mixture of piston rings and molding sand that need to be removed is put into the sand removal box 2, so that the mixture vibrates in the oscillating shearing sand cleaning and screening component. The dislodged molding sand falls into the bottom of the sand removal box 2 through the screen plate 6. At the same time as the vibration is transmitted, the screen plate 6 rotates around the rotating shaft 12 between the two protrusions 8 in the screen plate groove 9. The sliding block 10 and the sliding groove 11 are both set in an arc shape and are in line with the... The axes of the rotating shaft 12 are collinear. While the sliding block 10 on the side of the screen plate 6 slides in the sliding groove 11, it rotates around the rotating shaft 12, causing the two sides of the screen plate 6 to swing up and down while vibrating. The piston ring in the sand drop box 2 flips in the sand drop box 2, so that the molding sand adhering to the piston ring directly contacts the vibrating screen plate 6. By directly contacting the vibrating screen plate 6, the molding sand adhering to the piston ring is more easily detached, avoiding the low degree of cleaning of molding sand adhering to the piston ring caused by some molding sand not contacting the vibrating screen plate 6, thereby improving the efficiency of sand drop.

[0038] S2, the two adjacent screen plates 6 swing up and down alternately when swinging. The molding sand on the piston ring between the two screen plates 6 is squeezed by the two screen plates 6, making it easier for the molding sand adhering to the piston ring to fall off. At the same time, when the clump of molding sand is squeezed between the two screen plates 6, the clump of molding sand is squeezed out. The squeezed molding sand falls into the sand drop box 2 through the screen plate 6, which further improves the efficiency of sand drop.

[0039] S3, when the sieve plate 6 swings, it impacts the impact column 15 on the fixed plate 14. The inertia of the sieve plate 6 generates vibration. When the sieve plate 6 impacts the lower impact column 15, the vibration generated by inertia causes large pieces of molding sand that are blocked on the sieve holes of the sieve plate 6 to bounce up, thus preventing large pieces of molding sand from blocking the sieve holes. When the sieve plate 6 impacts the upper impact column 15, the vibration generated by inertia causes small pieces of molding sand that are adhered to the sieve holes of the sieve plate 6 to fall into the bottom of the sand drop box 2, thus preventing small pieces of molding sand from blocking the sieve holes and improving the sand drop efficiency.

[0040] Both the sliding block 10 and the sliding groove 11 are set in an arc shape and their axes are collinear, which can already form a swing. The addition of the rotating shaft 12 further improves the stability of the swing. Without the rotating shaft 12, the sliding block 10 and the sliding groove 11 can also be set as conventional vertical sliding groove 11 and sliding block 10. The screen plate 6 moves up and down in the sand drop box 2 while vibrating. The two adjacent screen plates 6 can also produce the above-mentioned effect of flipping piston rings and squeezing molding sand.

[0041] The parts of this utility model not described in detail are prior art. Although this utility model has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. However, those skilled in the art should understand that various changes in form and detail can be made to this utility model without departing from the spirit and scope of this utility model as defined by the appended claims, and all such changes shall be within the protection scope of this utility model.

Claims

1. A piston ring casting shakeout equipment, comprising a shakeout machine base (1), a shakeout box (2), a vibration motor (3) and a fixed support (4), the shakeout machine base (1) is fixedly connected with the two sides of the outer wall of the shakeout box (2), the vibration motor (3) is provided with two, the two vibration motors (3) are respectively fixedly connected on the two sides of the outer wall of the shakeout box (2), and the two ends of the fixed support (4) are respectively fixedly connected with the inner wall of the shakeout box (2), characterized in that: The sand drop box (2) is equipped with a swing shear sand cleaning and screening component. The two ends of the swing shear sand cleaning and screening component are fixedly connected to the inner wall of the sand drop box (2). The two sides of the swing shear sand cleaning and screening component are in contact with the inner wall of the sand drop box (2). The lower surface of the swing shear sand cleaning and screening component is fixedly connected to the upper surface of the fixed bracket (4). The swing shear sand cleaning and screening component is equipped with a screen hole anti-clogging component. The fixed end of the screen hole anti-clogging component is connected to the swing shear sand cleaning and screening component. The movable end of the screen hole anti-clogging component is in contact with the swing shear sand cleaning and screening component. ​ 2. The piston ring casting sand removal equipment according to claim 1, characterized in that: The oscillating shear sand-cleaning screening component includes a support column (5), a screen plate (6), and a sliding assembly. Several support columns (5) are provided and are evenly distributed within the sand drop box (2). Each support column (5) includes a support base column (7) and protrusions (8). The two ends of the support base column (7) are fixedly connected to the inner wall of the sand drop box (2). The lower surface of the support base column (7) is fixedly connected to the upper surface of the fixed bracket (4). The upper surface of the support base column (7) is fixedly connected to the lower surface of the protrusions (8). Several protrusions (8) are provided and are evenly distributed on the support base column (7). A sliding assembly is formed between two adjacent protrusions (8) on the support column (5). The sieve plate groove (9) is located on the support column (5) and its position corresponds to the position of the protrusions (8) on the adjacent support columns (5) on both sides. The length of the sieve plate groove (9) on the support column (5) corresponds to the length of the protrusions (8) on the adjacent support columns (5) on both sides. The sieve plate (6) is provided in the sieve plate groove (9). The two ends of the sieve plate (6) are respectively in contact with the two adjacent protrusions (8). The two sides of the sieve plate (6) are respectively slidably connected to the adjacent protrusions (8) on both sides of the sieve plate (6) through the sliding component. The fixed end of the sieve hole anti-clogging component is fixedly connected to the support column (5), and the movable end of the sieve hole anti-clogging component is in contact with the sieve plate (6).

3. The piston ring casting sand removal equipment according to claim 2, characterized in that: The sliding component is a sliding block (10), the side of the protrusion (8) is provided with a sliding groove (11), the sliding end of the sliding block (10) is located in the sliding groove (11) and is slidably connected to the protrusion (8), and the fixed end of the sliding block (10) is fixedly connected to the side of the sieve plate (6).

4. The piston ring casting sand removal equipment according to claim 3, characterized in that: The sliding groove (11) is an arc-shaped groove, and the arc-shaped axes of the two sliding grooves (11) on the two protrusions (8) on both sides of the screen plate (6) are collinear. The sliding end of the sliding block (10) is arc-shaped, and the axis of the arc-shaped sliding end of the sliding block (10) is collinear with the axis of the arc-shaped sliding groove (11).

5. The piston ring casting sand removal equipment according to claim 4, characterized in that: A rotating shaft (12) is provided in the groove (9) of the sieve plate. The two ends of the rotating shaft (12) are fixedly connected to the protrusions (8) adjacent to the two ends of the rotating shaft (12). A rotating shaft hole (13) is provided in the center of the sieve plate (6). The rotating shaft hole (13) passes through the two ends of the sieve plate (6). The rotating shaft (12) is located in the rotating shaft hole (13) and is rotatably connected to the sieve plate (6). The axis of the rotating shaft (12) is collinear with the arc axis of the sliding groove (11).

6. The piston ring casting sand removal equipment according to claim 2, characterized in that: The screen hole anti-clogging component includes a fixing plate (14) and an impact column (15). The fixing plate (14) is fixedly connected to the protrusion (8) and the fixing plate (14) is located above the screen plate (6). The lower surface of the fixing plate (14) is fixedly connected to the top end of the impact column (15) and the bottom end of the impact column (15) is in contact with the screen plate (6).

7. A piston ring casting sand removal device according to claim 2, characterized in that: The screen hole anti-clogging component includes a fixing plate (14) and an impact column (15). The fixing plate (14) is fixedly connected to the side of the supporting bottom column (7), and the fixing plate (14) is located below the screen plate (6). The upper surface of the fixing plate (14) is fixedly connected to the bottom end of the impact column (15), and the top end of the impact column (15) is in contact with the screen plate (6).

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