A casting device with centrifugal impurity removal

Abstract

The present invention discloses a casting device with centrifugal impurity removal, and relates to the technical field of workpiece casting equipment. The technical solution is a casting device with centrifugal impurity removal, comprising a casting mold, wherein a molding cavity through-through is arranged in the casting mold, wherein the molding cavity is wide at the top and narrow at the bottom, and a lifting plate is also arranged in the molding cavity, wherein the lifting plate seals the lower opening of the molding cavity, and a receiving plate fitted therewith is also fixedly connected to the bottom of the casting mold, wherein a concave hole not smaller than the lower port of the molding cavity is arranged on the upper surface of the receiving plate, wherein the concave hole is aligned with the lower port of the molding cavity, and an impurity removal groove is also arranged on the upper surface of the receiving plate, wherein one end of the impurity removal groove is connected to the concave hole, and the other end is connected to the edge of the receiving plate. The structure of the present application is reasonable, and it is convenient to clean impurities in the casting mold, and to avoid impurities remaining and affecting the quality of the next casting.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece casting equipment, in particular to a casting equipment with centrifugal impurity removal. Background Art

[0002] Casting is a technique of melting metal and pouring it into a mold to form a predetermined object. In the production process of workpieces, the casting method is often used. After the workpiece is cast, it is then subjected to subsequent finishing.

[0003] Casting generally includes processes such as making molds, melting metal, casting and cleaning. After the workpiece is cast, some waste chips caused by cooling and some residual granular impurities will appear on the surface of the workpiece. These waste chips and impurities will remain in the mold and will affect the next casting. Therefore, the mold needs to be cleaned before the next casting. However, it is difficult to clean some molds, especially some relatively closed molds. Summary of the invention

[0004] In order to improve the situation where impurities in the casting mold are difficult to clean, the present application provides a casting equipment with centrifugal impurity removal.

[0005] The present application provides a casting device with centrifugal impurity removal, which adopts the following scheme:

[0006] A casting device with centrifugal impurity removal comprises a casting mold, wherein a molding cavity which passes through from top to bottom is arranged in the casting mold, wherein the molding cavity is wide at the top and narrow at the bottom, and a lifting plate is also arranged in the molding cavity, wherein the lifting plate seals the lower opening of the molding cavity, and a receiving plate which is fitted therewith is fixedly connected to the bottom of the casting mold, wherein a concave hole which is not smaller than the lower port of the molding cavity is arranged on the upper surface of the receiving plate, wherein the concave hole is aligned with the lower port of the molding cavity, and an impurity removal groove is also arranged on the upper surface of the receiving plate, wherein one end of the impurity removal groove is connected to the concave hole, and the other end passes through to the edge of the receiving plate.

[0007] By adopting the above scheme, during casting, the lifting plate seals the lower port of the molding cavity, and after the molten metal cools and takes shape, the lifting plate rises to eject the workpiece from the molding cavity. At the same time, since the molding cavity is wide at the top and narrow at the bottom, a gap will be generated between the lifting plate and the inner wall of the molding cavity during the rising process. Impurities remaining in the molding cavity can fall from the gap and fall into the concave hole. The impurities in the concave hole can be discharged through the impurity discharge groove. The wind pressure when the lifting plate descends also helps lighter impurities to be discharged through the impurity discharge groove, thereby facilitating the discharge of impurities in the mold.

[0008] Optionally, a supporting protrusion is fixedly connected to the side wall of the concave hole, and the lower surface of the lifting plate is supported on the supporting protrusion.

[0009] By adopting the above solution, supporting protrusions are provided to support the lifting plate, so as to facilitate positioning of the lifting plate after it is lowered.

[0010] Optionally, a lifting rod is coaxially fixedly connected to the lower surface of the lifting plate, and an end of the lifting rod facing away from the lifting plate is connected to a controller, and the lifting and lowering of the lifting rod is controlled by the controller.

[0011] By adopting the above solution, the controller controls the lifting of the lifting rod, and the lifting rod drives the lifting plate to move up and down, thereby controlling the lifting of the lifting plate.

[0012] Optionally, it also includes a bracket, which is rotatably connected to a driven wheel, which is sleeved on the lifting rod and circumferentially fixed to the lifting rod, and one end of the lifting rod facing away from the lifting plate is sleeved on the lifting end of the controller, and a driver is also fixed on the bracket, and the driven wheel is driven to rotate by the driver, and a rotating seat is also fixed on the bracket, and a support seat is rotatably connected to the rotating seat, and the support seat is fixedly connected to the receiving plate, and the support seat is sleeved on the lifting rod and circumferentially fixed to it.

[0013] By adopting the above scheme, when the lifting end of the controller rises, the lifting rod is pushed upward, and when the lifting end of the controller descends, the lifting plate and the lifting rod fall naturally due to the gravity of the lifting plate and the lifting rod. Since the driven wheel and the lifting rod are circumferentially fixed, and the support seat and the lifting rod are circumferentially fixed, when the driver drives the driven wheel to rotate, the lifting rod rotates accordingly, and drives the support seat to rotate. The support seat is fixedly connected to the receiving plate, so it drives the receiving plate and the casting mold to rotate. Due to the action of centrifugal force, impurities in the molding cavity easily fall into the concave hole, and then are discharged through the impurity discharge groove, thereby facilitating the cleaning of impurities.

[0014] Optionally, a high-pressure gas injection device is further provided on one side of the casting mold, and the injection port of the high-pressure gas injection device is aligned with the upper end opening of the molding cavity.

[0015] By adopting the above scheme, after the lifting plate ejects the cooled and solidified workpiece, a high-pressure gas injection device can be used to spray high-pressure gas into the molding cavity. The high-pressure gas can blow out impurities in the molding cavity and blow out impurities in the concave hole through the impurity removal groove, thereby facilitating the cleaning of impurities.

[0016] Optionally, a baffle plate is further arranged around the casting mold, and an end of the impurity removal groove facing away from the concave hole is aligned with the baffle plate.

[0017] By adopting the above scheme, when the receiving plate and the casting mold rotate, impurities are thrown out from the impurity discharge groove, and the thrown impurities can hit the baffle plate, thereby preventing the impurities from flying out directly and hitting the staff.

[0018] Optionally, a flap is hinged on the baffle plate, a through hole is opened on the flap, a funnel is fixedly connected in the through hole, and the funnel is inserted into the molding cavity when the flap is closed.

[0019] By adopting the above solution, during casting, the molten metal is directly poured into the funnel and flows into the molding cavity of the casting mold through the funnel, thereby facilitating casting.

[0020] Optionally, a control cylinder is hinged on the baffle plate, one end of the control cylinder is hinged on the baffle plate, and the other end is hinged on the flap.

[0021] By adopting the above scheme, the automatic opening and closing of the flap can be conveniently controlled by the control cylinder.

[0022] Optionally, a stepped groove is provided at the upper port of the molding cavity, and an annular pressure piece is supported on the stepped surface of the stepped groove. The funnel is sleeved in the annular pressure piece when the flip cover is closed. A buckling piece is also hinged on the casting mold, and one end of the buckling piece away from the annular pressure piece is inclined downward and fixedly connected to a counterweight block, and the buckling piece buckles the annular pressure piece when the casting mold rotates.

[0023] By adopting the above scheme, the annular pressure piece can press the workpiece to prevent the workpiece from escaping from the molding cavity during the rotation of the casting mold. Moreover, when the casting mold rotates, the pressing piece and the counterweight block rotate accordingly. Due to the centrifugal force, the counterweight block moves outward, causing the pressing piece to move and clamp the annular pressure piece, thereby further fixing the annular pressure piece. After the casting mold stops rotating, due to the gravity of the counterweight block, the pressing piece is separated from the annular pressure piece, so that the workpiece can be ejected normally.

[0024] In summary, this application has the following beneficial effects:

[0025] 1. After the workpiece is cast, it can be ejected from the mold to facilitate removal of the workpiece;

[0026] 2. Through the action of centrifugal force, it is convenient to remove the impurities remaining in the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0028] Figure 2 is a cross-sectional view of the overall structure of Example 1;

[0029] Figure 3 yes Figure 2 A magnified view of part A;

[0030] Figure 4It is a schematic diagram of the overall structure of Example 2.

[0031] Figure numerals: 1. casting mold; 2. molding cavity; 3. lifting plate; 4. receiving plate; 5. recessed hole; 6. debris removal groove; 7. supporting protrusion; 8. lifting rod; 9. controller; 10. bracket; 11. driven wheel; 12. driver; 13. rotating seat; 14. supporting seat; 15. high-pressure gas injection equipment; 16. baffle plate; 17. flap; 18. through hole; 19. funnel; 20. control cylinder; 21. stepped groove; 22. annular pressure piece; 23. buckle pressure piece; 24. counterweight block; 25. flat plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] The embodiment of the invention discloses a casting device with centrifugal impurity removal.

[0034] Example 1: Combination Figure 1 and Figure 3 As shown, it includes a casting mold 1, which is cylindrical as a whole. A molding cavity 2 that passes through from top to bottom is arranged in the casting mold 1. During casting, molten metal is poured into the molding cavity 2 to be cooled and formed. The molding cavity 2 is similar to a cone that is wide at the top and narrow at the bottom. In order to prevent the molten metal from leaking from the lower port of the molding cavity 2, a lifting plate 3 is also arranged at the lower port of the molding cavity 2. The lifting plate 3 is circular, and the lower port of the molding cavity 2 is sealed by the lifting plate 3.

[0035] A circular receiving plate 4 is provided below the casting mold 1. The receiving plate 4 is fixedly connected to the casting mold 1 by bolts. The upper surface of the receiving plate 4 fits the lower surface of the casting mold 1. In addition, a circular concave hole 5 is provided on the upper surface of the receiving plate 4. The size of the concave hole 5 is not less than the opening size of the lower port of the molding cavity 2. The concave hole 5 is aligned with the lower port of the molding cavity 2, so that impurities in the molding cavity 2 can fall into the concave hole 5. A plurality of impurity discharge grooves 6 are also provided on the upper surface of the receiving plate 4. The plurality of impurity discharge grooves 6 are arranged at intervals along the circumference of the receiving plate 4. One end of the impurity discharge groove 6 is connected to the concave hole 5, and the other end passes through the edge of the receiving plate 4. The bottom surface of the impurity discharge groove 6 is flush with the bottom surface of the concave hole 5, so that impurities in the concave hole 5 can be discharged through the impurity discharge groove 6.

[0036] Combination Figure 2 and Figure 3As shown, a support seat 14 is provided below the material receiving plate 4, and the lower surface of the material receiving plate 4 is attached to and supported on the support seat 14. The support seat 14, the material receiving plate 4 and the casting mold 1 are fixedly connected together by bolts. A rotating seat 13 is provided below the support seat 14, and the support seat 14 is rotatably connected to the rotating seat 13. In this embodiment, a circular groove is provided on the upper surface of the rotating seat 13, and a plane bearing is embedded in the circular groove. The lower end of the support seat 14 is embedded in the circular groove and supported on the plane bearing, so that the support seat 14 can be easily rotated.

[0037] A bracket 10 is disposed below the rotating seat 13 . The bracket 10 includes a flat plate 25 . The rotating seat 13 is supported on the flat plate 25 , and the rotating seat 13 is fixed to the flat plate 25 by bolts.

[0038] The lower surface of the lifting plate 3 is coaxially fixedly connected with a lifting rod 8, which passes downwardly through the receiving plate 4 and the supporting seat 14. The interior of the rotating seat 13 is hollow, and the lifting rod 8 passes through it and passes through the flat plate 25 of the bracket 10. A rolling bearing is also fixed in the rotating seat 13, and the rolling bearing is sleeved on the lifting rod 8. After the lower end of the lifting rod 8 passes through the flat plate 25, a driven wheel 11 is sleeved. The driven wheel 11 and the lifting rod 8 are circumferentially fixed. A protrusion is provided on the inner wall of the driven wheel 11, and a groove is correspondingly provided on the lifting rod 8. The protrusion is slidably connected in the groove, so that the lifting rod 8 can be lifted and lowered normally. A rolling bearing is fixedly connected to the flat plate 25, and the driven wheel 11 is coaxially fixedly connected to the inner ring of the rolling bearing. A driver 12 is also fixed on the flat plate 25. The driver 12 is a motor. A driving wheel is coaxially fixedly connected to the rotating shaft of the driver 12. The driving wheel and the driven wheel 11 are both pulleys, and the two are connected by a belt drive, so that the driver 12 can control the rotation of the lifting rod 8.

[0039] In addition, the lifting rod 8 is also circumferentially fixed to the support seat 14 and the material receiving plate 4. Grooves are provided on the support seat 14 and the material receiving plate 4. A flat key is correspondingly provided on the lifting rod 8. The flat key is slidably connected in the groove, so that the lifting rod 8 and the support seat 14 and the material receiving plate 4 are circumferentially fixed and can be lifted and lowered normally.

[0040] A controller 9 is provided at the lowest end of the lifting rod 8. In the present embodiment, the controller 9 is a hydraulic pump which is pressurized by an oil pump. The telescopic rod of the controller 9 is vertically arranged upward. A hole is provided at the lower end of the lifting rod 8 and is sleeved on the telescopic rod of the controller 9. The telescopic rod of the controller 9 can lift the lifting rod 8 upward and the telescopic rod of the controller 9 can retract downward. Due to the gravity of the lifting plate 3 and the lifting rod 8, the lifting plate 3 and the lifting rod 8 can naturally descend.

[0041] In order to prevent the lifting plate 3 from falling into the recessed hole 5 on the receiving plate 4, a supporting protrusion 7 is further provided on the side wall of the recessed hole 5. There are multiple supporting protrusions 7 and they are arranged at intervals along the circumference of the recessed hole 5. When the lifting plate 3 descends, it can be supported on the supporting protrusions 7, thereby determining its position. At this time, the lifting plate 3 just seals the lower port of the molding cavity 2.

[0042] After the workpiece is cooled and formed in the molding cavity 2, the controller 9 pushes the lifting rod 8 upward, so that the lifting rod 8 and the lifting plate 3 rise. During the rising process of the lifting plate 3, the formed workpiece is ejected. After the workpiece is taken away, the driver 12 drives the lifting rod 8 to rotate again. At this time, the lifting rod 8 drives the lifting plate 3, the support seat 14, the receiving plate 4, and the casting mold 1 to rotate together. Since the molding cavity 2 is wide at the top and narrow at the bottom, a gap will be generated between the lifting plate 3 and the side wall of the molding cavity 2 after it rises. The impurities on the lifting plate 3 can fall through the gap between the lifting plate 3 and the side wall of the molding cavity 2 under the action of centrifugal force, and then fall into the concave hole 5. The impurities in the concave hole 5 are then discharged through the impurity discharge groove 6 under the action of centrifugal force.

[0043] At this time, the impurities will be thrown out, and the impurities will retain a certain temperature. In order to prevent the flying impurities from hurting the staff, a baffle plate 16 is arranged around the casting mold 1. The baffle plate 16 is fixed on the bracket 10, and the height of the baffle plate 16 is adjustable. The flying impurities can be blocked by the baffle plate 16 and fall onto the flat plate 25 below.

[0044] A stepped groove 21 is provided at the upper end of the molding cavity 2, and an annular pressure piece 22 is supported on the stepped surface of the stepped groove 21. In addition, a plurality of buckling pieces 23 are hingedly connected to the upper end of the casting mold 1. The plurality of buckling pieces 23 are arranged at intervals along the circumference of the casting mold 1. The buckling pieces 23 are hinged in the middle, one end of the buckling piece 23 is close to the annular pressure piece 22, and the other end is far away from the annular pressure piece 22. In addition, a counterweight block 24 is fixedly connected to the end of the buckling piece 23 far away from the annular pressure piece 22. Under normal conditions, due to the gravity of the counterweight 24, the end of the clamping piece 23 close to the annular pressure piece 22 is tilted upward and located outside the annular pressure piece 22; when the casting mold 1 rotates, due to the centrifugal force, the counterweight 24 is thrown outward, causing the end of the clamping piece 23 away from the annular pressure piece 22 to tilt upward, and the end of the clamping piece 23 close to the annular pressure piece 22 is pressed down to clamp the annular pressure piece 22, so that the annular pressure piece 22 will not detach from the step groove 21. This structure can be used during centrifugal casting.

[0045] In addition, a flap 17 is hinged on the baffle plate 16, and a through hole 18 is provided on the flap 17. A funnel 19 is fixed in the through hole 18. When the flap 17 is closed, the lower end of the funnel 19 is inserted into the molding cavity 2, so as to facilitate the injection of molten metal into the molding cavity 2. In order to facilitate the opening and closing of the flap 17, a control cylinder 20 is hinged on the outer wall of the baffle plate 16. The control cylinder 20 is a hydraulic cylinder, which is pressurized by an oil pump. One end of the control cylinder 20 is hinged on the baffle plate 16, and the end of the telescopic rod of the control cylinder 20 is hinged to the flap 17.

[0046] Example 2: Figure 4 As shown, the difference between this embodiment and embodiment 1 is that a high-pressure gas injection device 15 is further provided. When the flip cover 17 is closed, the injection port of the high-pressure gas injection device 15 is aligned with the upper port of the molding cavity 2, and the impurities in the molding cavity 2 are blown out by high-pressure gas. The high-pressure gas injection device 15 in this embodiment includes a high-pressure centrifugal fan, which supplies air and then sprays the gas through a pipeline. At the same time, the gas can be further cooled, so that the sprayed gas is high-pressure cold air, which can remove impurities in the molding cavity 2 and cool the casting mold 1 at the same time.

[0047] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A casting device with centrifugal impurity removal, comprising a casting mold (1), wherein the casting mold (1) is provided with a molding cavity (2) which is through-through from top to bottom, wherein the molding cavity (2) is wide at the top and narrow at the bottom, and wherein: A lifting plate (3) is also provided in the molding cavity (2). During casting, the lifting plate (3) seals the lower opening of the molding cavity (2). After the molten metal cools and solidifies, the lifting plate (3) rises to eject the workpiece from the molding cavity (2). A receiving plate (4) is also fixedly connected to the bottom of the casting mold (1) and is fitted therewith. A concave hole (5) not smaller than the lower end of the molding cavity (2) is provided on the upper surface of the receiving plate (4). The concave hole (5) is aligned with the lower end of the molding cavity (2). A debris removal groove (6) is also provided on the upper surface of the receiving plate (4). One end of the debris removal groove (6) is connected to the concave hole (5), and the other end passes through the edge of the receiving plate (4).

2. A casting equipment with centrifugal impurity removal according to claim 1, characterized in that: A supporting protrusion (7) is fixedly connected to the side wall of the recessed hole (5), and the lower surface of the lifting plate (3) is supported on the supporting protrusion (7).

3. The casting equipment with centrifugal impurity removal according to claim 1, characterized in that: A lifting rod (8) is coaxially fixedly connected to the lower surface of the lifting plate (3); one end of the lifting rod (8) facing away from the lifting plate (3) is connected to a controller (9); and the lifting and lowering of the lifting rod (8) is controlled by the controller (9).

4. A casting equipment with centrifugal impurity removal according to claim 3, characterized in that: The invention also comprises a bracket (10), the bracket (10) being rotatably connected to a driven wheel (11), the driven wheel (11) being sleeved on the lifting rod (8), and the driven wheel (11) and the lifting rod (8) being circumferentially fixed, the end of the lifting rod (8) facing away from the lifting plate (3) being sleeved on the lifting end of the controller (9), the bracket (10) being further fixed to a driver (12), the driven wheel (11) being driven to rotate by the driver (12), the bracket (10) being further fixed to a rotating seat (13), the rotating seat (13) being rotatably connected to a support seat (14), the support seat (14) being fixedly connected to the receiving plate (4), the support seat (14) being sleeved on the lifting rod (8) and circumferentially fixed thereto.

5. The casting equipment with centrifugal impurity removal according to claim 3, characterized in that: A high-pressure gas injection device (15) is also provided on one side of the casting mold (1), and the injection port of the high-pressure gas injection device (15) is aligned with the upper end opening of the molding cavity (2).

6. The casting equipment with centrifugal impurity removal according to claim 4, characterized in that: The casting mold (1) is also provided with a baffle plate (16) around its periphery, and an end of the impurity discharge groove (6) that is away from the concave hole (5) is aligned with the baffle plate (16).

7. A casting equipment with centrifugal impurity removal according to claim 6, characterized in that: A flap (17) is hingedly connected to the baffle plate (16), a through hole (18) is provided on the flap (17), a funnel (19) is fixedly connected inside the through hole (18), and the funnel (19) is inserted into the molding cavity (2) when the flap (17) is closed.

8. The casting equipment with centrifugal impurity removal according to claim 7, characterized in that: A control cylinder (20) is hinged on the baffle plate (16); one end of the control cylinder (20) is hinged on the baffle plate (16), and the other end is hinged on the flap (17).

9. A casting equipment with centrifugal impurity removal according to claim 8, characterized in that: A stepped groove (21) is provided at the upper end of the molding cavity (2), and an annular pressing piece (22) is supported on the stepped surface of the stepped groove (21). The funnel (19) is sleeved in the annular pressing piece (22) when the flip cover (17) is closed. A buckling piece (23) is also hinged on the casting mold (1), and one end of the buckling piece (23) facing away from the annular pressing piece (22) is obliquely downward and fixedly connected to a counterweight (24). The buckling piece (23) buckles the annular pressing piece (22) when the casting mold (1) rotates.

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