A casting processing mold that facilitates demolding

Abstract

The application relates to a cast processing mold facilitating demolding, and belongs to the cast mold field. The cast processing mold facilitating demolding comprises a supporting base and a forming mechanism arranged on the top of the supporting base and extending into the supporting base. An ejection structure extending into the supporting base is arranged on the outside of the supporting base and is used for ejecting a cast. A rotary lifting adsorption blanking mechanism is arranged on the outside of the supporting base and is used for automatically blanking the cast. When the output end of a hydraulic cylinder is retracted, the moving plate is driven to move upwards, so that the upper mold is separated from the lower mold. The upward movement of the moving plate drives the gear rod to move through the connecting rod. The gear rod is engaged with the gear, the gear is driven to rotate, the fan is driven to rotate, the airflow generated by the fan enters the piston cylinder through the connecting pipe, the piston plate is driven to move upwards, the ejector rod and the top plate are driven to move upwards, the cast is ejected from the lower mold, the direct contact between the cast and the mold is reduced, the surface quality of the cast is protected, and the advantages of efficient demolding are achieved.

Description

Technical Field

[0001] This invention relates to the field of casting mold technology, specifically to a casting processing mold that facilitates demolding. Background Technology

[0002] Steel castings are objects with a certain shape, size and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting molten steel, cooling and so on. After cooling, they need to be demolded.

[0003] In the casting mold process, casting processing molds that are easy to demold are required. Chinese utility model patent with announcement number CN221833152U discloses a precision mold that is easy to demold, including a lower mold and an upper mold movably connected to the top of the lower mold. Two forming molds are symmetrically slidably connected inside the lower mold. A top plate is movably connected to the side of the two forming molds that are close to each other. A guide plate is fixedly connected to the bottom of the two forming molds. A first connecting plate is slidably connected inside the lower mold and below the guide plate. Two first connecting rods are symmetrically fixedly connected to the top of the first connecting plate.

[0004] However, in this utility model of a precision mold that facilitates demolding, the first, second, and third electric push rods are all electrically connected to external control equipment. Operators need to control the operating status of multiple electric push rods separately, which lacks an effective collaborative working mechanism. The operation process is relatively complex and may lead to asynchronous operation of the electric push rods, affecting the demolding effect or even damaging the mold. Therefore, a casting processing mold that facilitates demolding is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a casting processing mold that facilitates demolding. It offers advantages such as high demolding efficiency and a high degree of automation. This invention solves the problem that in existing precision molds designed for easy demolding, the first, second, and third electric push rods are electrically connected to external control equipment. Operators need to control the operation of multiple electric push rods separately, resulting in a lack of effective collaborative working mechanism, relatively complex operation procedures, and the potential for asynchronous operation of the electric push rods, which can affect the demolding effect or even damage the mold.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a casting processing mold that facilitates demolding, comprising a support base and a forming mechanism disposed on the top of the support base and extending therein, wherein the support base is provided with an ejection structure extending therein for ejecting the casting, and the support base is provided with a rotary lifting adsorption unloading mechanism for automatic unloading of the casting.

[0007] The forming mechanism includes a mounting plate, a hydraulic cylinder, a moving plate, an upper mold, and a lower mold;

[0008] The ejection structure includes a conical cylinder and a piston cylinder fixedly connected to the inner and outer walls of the support base, a connecting pipe fixedly connected between the conical cylinder and the piston cylinder, a breather valve fixedly installed inside the connecting pipe, a piston plate slidably connected inside the piston cylinder, a push rod fixedly connected to the top of the piston plate, a top plate fixedly connected to the top of the push rod, a fan rotatably installed inside the conical cylinder, and a transmission structure located outside the fan.

[0009] The rotary lifting adsorption unloading mechanism includes an installation cylinder fixedly connected to the outside of the support base, a moving rod rotatably connected to the inside of the installation cylinder, a connecting column fixedly connected to the inside of the moving rod, a crossbar fixedly connected to the top of the connecting column, a vacuum suction cup fixedly installed at one end of the crossbar, a guide assembly set inside the installation cylinder, and a synchronization structure set outside the moving rod.

[0010] Furthermore, the mounting plate is fixedly connected to the top of the support base, the hydraulic cylinder is fixedly installed on the top of the mounting plate, the movable plate is fixedly installed on the output end of the hydraulic cylinder, the upper mold is fixedly connected to the bottom of the movable plate, the lower mold is fixedly installed inside the support base, and the upper mold is located on the upper surface of the lower mold.

[0011] Furthermore, the transmission structure includes a gear fixedly installed outside the fan, a rack meshing with the outside of the gear, and a connecting rod fixedly connected between the rack and the moving plate.

[0012] Furthermore, the top plate is slidably installed inside the lower mold and flush with the inner bottom wall of the lower mold. The push rod is slidably connected to the inside of the piston cylinder and extends to its upper surface. A return spring is fixedly installed between the top plate and the piston cylinder, and the return spring is connected to the outside of the push rod.

[0013] Furthermore, the guide assembly includes a pulley rotatably connected to the outside of the moving rod and a transmission groove formed inside the mounting cylinder. The outer diameter of the pulley is adapted to the inner diameter of the transmission groove. The moving rod rotates and rises and falls inside the mounting cylinder through the transmission groove and extends to its upper surface.

[0014] Furthermore, the synchronization structure includes a swing seat disposed outside the support base, a transmission rod rotatably connected to the right side of the swing seat, a connecting plate fixedly connected to the top of the transmission rod, and a reset torsion spring fixedly connected to the top of the connecting plate. The moving rod is fixedly connected to the top of the connecting plate, and the reset torsion spring is connected around the outside of the moving rod. The top end of the reset torsion spring abuts against the bottom end of the mounting cylinder.

[0015] Furthermore, the swing seat is rotatably connected to a pin extending to its exterior, with the end of the pin away from the swing seat fixedly installed inside the support base.

[0016] Furthermore, a swing rod is rotatably connected to the top left side of the swing seat via a hinged seat, and the end of the swing rod away from the swing seat is hinged to the bottom of the moving plate.

[0017] Compared with the prior art, the present invention provides a casting processing mold that facilitates demolding, and has the following beneficial effects:

[0018] 1. This easy-to-demold casting mold, when the hydraulic cylinder output end retracts, drives the moving plate to move upward, separating the upper mold from the lower mold. The upward movement of the moving plate drives the rack to move via the connecting rod. The rack meshes with the gear, driving the gear to rotate, which in turn drives the fan to rotate. The airflow generated by the fan enters the piston cylinder through the connecting pipe, pushing the piston plate upward, which in turn drives the ejector rod and the ejector plate upward, ejecting the casting from the lower mold. This reduces the direct contact between the casting and the mold, protects the surface quality of the casting, and achieves the advantage of efficient demolding.

[0019] 2. This easy-to-demold casting mold, when the hydraulic cylinder output end retracts, moves the moving plate upward, driving the swing rod to swing upward, causing the swing seat to rotate clockwise around the pin shaft. This, in turn, drives the moving rod to rotate clockwise and move downward through the transmission rod and connecting plate. The vacuum suction cup carries the casting away from the lower mold, completing the casting unloading. It can adapt to the unloading needs of castings of different shapes and sizes. The movement of the moving plate simultaneously drives the ejection structure and the rotary lifting suction unloading mechanism, achieving seamless connection between various processes, further improving the level of automation, and achieving the advantage of a high degree of automation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0021] Figure 2 This is a three-dimensional structural view of the molding mechanism, ejection structure, and rotary lifting adsorption unloading mechanism of the present invention.

[0022] Figure 3 This is a three-dimensional structural view of the molding mechanism and ejection structure of the present invention;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the ejector structure of the present invention;

[0024] Figure 5 This is a three-dimensional structural view of the molding mechanism and the rotary lifting adsorption unloading mechanism of the present invention;

[0025] Figure 6 This is a three-dimensional structural view of the rotary lifting adsorption feeding mechanism of the present invention.

[0026] In the diagram: 1. Support base; 2. Forming mechanism; 21. Mounting plate; 22. Hydraulic cylinder; 23. Moving plate; 24. Upper mold; 25. Lower mold; 3. Ejection structure; 31. Conical cylinder; 32. Piston cylinder; 33. Connecting pipe; 34. Breathing valve; 35. Piston plate; 36. Ejector rod; 37. Top plate; 38. Return spring; 39. Fan; 310. Gear; 311. Tooth rack; 312. Connecting rod; 4. Rotary lifting suction unloading mechanism; 41. Mounting cylinder; 42. Moving rod; 43. Connecting column; 44. Crossbar; 45. Vacuum suction cup; 46. Pulley; 47. Transmission groove; 48. Swinging seat; 49. Pin; 410. Transmission rod; 411. Connecting plate; 412. Return torsion spring; 413. Swing rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1 to 6 In this embodiment, a casting processing mold that facilitates demolding includes a support base 1 and a forming mechanism 2 disposed on the top of the support base 1 and extending into its interior. The support base 1 is provided with an ejection structure 3 extending into its interior for ejecting the casting. The support base 1 is also provided with a rotary lifting adsorption unloading mechanism 4 for automatically unloading the casting.

[0029] The forming mechanism 2 includes a mounting plate 21, a hydraulic cylinder 22, a moving plate 23, an upper mold 24, and a lower mold 25;

[0030] Specifically, mounting plate 21 is fixedly connected to the top of support base 1, hydraulic cylinder 22 is fixedly mounted on the top of mounting plate 21, moving plate 23 is fixedly mounted on the output end of hydraulic cylinder 22, upper mold 24 is fixedly connected to the bottom of moving plate 23, and lower mold 25 is fixedly mounted inside support base 1, with upper mold 24 located on the upper surface of lower mold 25. When casting is required, the controller activates the sliding block of hydraulic cylinder 22, causing the output end of hydraulic cylinder 22 to extend and push moving plate 23 downward. As moving plate 23 moves downward, upper mold 24 moves downward closer to lower mold 25 until upper mold 24 and lower mold 25 close together, injecting molten metal into the mold cavity of upper mold 24 and lower mold 25 to form the casting.

[0031] In this embodiment, the ejector structure 3 includes a conical cylinder 31 and a piston cylinder 32 that are respectively fixedly connected to the inner and outer walls of the support base 1, a connecting pipe 33 that is fixedly connected between the conical cylinder 31 and the piston cylinder 32, a breather valve 34 that is fixedly installed inside the connecting pipe 33, a piston plate 35 that is slidably connected inside the piston cylinder 32, a push rod 36 that is fixedly connected to the top of the piston plate 35, a top plate 37 that is fixedly connected to the top of the push rod 36, a fan 39 that is rotatably installed inside the conical cylinder 31, and a transmission structure that is provided outside the fan 39.

[0032] The transmission structure includes a gear 310 fixedly installed outside the fan 39, a rack 311 meshing with the outside of the gear 310, and a connecting rod 312 fixedly connected between the rack 311 and the moving plate 23.

[0033] Specifically, the top plate 37 is slidably installed inside the lower mold 25 and flush with the inner bottom wall of the lower mold 25. The ejector rod 36 is slidably connected to the inside of the piston cylinder 32 and extends to its upper surface. A return spring 38 is fixedly installed between the top plate 37 and the piston cylinder 32, and the return spring 38 is connected to the outside of the ejector rod 36. By setting the ejector plate 37 to eject the casting from the cavity of the lower mold 25, the ejection force is uniform, which can effectively avoid the problem of casting deformation or damage caused by uneven demolding force, and improve the forming quality of the casting.

[0034] In this embodiment, during use, the output end of the hydraulic cylinder 22 retracts, pulling the moving plate 23 upward. The rack 311 moves upward synchronously with the moving plate 23, driving the gear 310 to rotate clockwise, which in turn drives the blower 39 to rotate clockwise, creating a negative pressure inside the conical cylinder 31. Outside air enters the conical cylinder 31 from the piston cylinder 32 through the breather valve 34. Under the action of negative pressure, the piston plate 35 moves upward, and the push rod 36 drives the top plate 37 to move upward, ejecting the formed casting from the cavity of the lower mold 25, thus achieving demolding. The return spring 38 is connected around the outside of the push rod 36 and fixedly installed between the top plate 37 and the piston cylinder 32. During the ejection process, the return spring 38 is stretched. After the casting is ejected, the hydraulic cylinder 22 is activated again, the moving plate 23 moves downward, driving the rack 311 to move downward, driving the gear 310 to rotate counterclockwise, the fan 39 to rotate counterclockwise, the air inside the conical cylinder 31 is discharged, the piston plate 35 moves downward to reset under the elastic force of the return spring 38, and the top plate 37 moves downward to return to the initial position.

[0035] In this embodiment, the rotary lifting adsorption unloading mechanism 4 includes an installation cylinder 41 fixedly connected to the outside of the support base 1, a moving rod 42 rotatably connected to the inside of the installation cylinder 41, a connecting column 43 fixedly connected to the inside of the moving rod 42, a crossbar 44 fixedly connected to the top of the connecting column 43, a vacuum suction cup 45 fixedly installed at one end of the crossbar 44, a guide assembly disposed inside the installation cylinder 41, and a synchronization structure disposed outside the moving rod 42.

[0036] The guiding assembly includes a pulley 46 rotatably connected to the outside of the moving rod 42 and a transmission groove 47 formed inside the mounting cylinder 41. The outer diameter of the pulley 46 is matched with the inner diameter of the transmission groove 47. The moving rod 42 rotates and rises within the mounting cylinder 41 via the transmission groove 47 and extends to its upper surface. Through the cooperation of the guiding assembly and the synchronization structure, the accuracy and stability of the moving rod 42's movement are ensured, enabling the vacuum suction cup 45 to maintain the correct position and posture during adsorption and unloading processes, thus improving the success rate of unloading.

[0037] Specifically, the synchronization structure includes a swing seat 48 disposed outside the support seat 1, a transmission rod 410 rotatably connected to the right side of the swing seat 48, a connecting plate 411 fixedly connected to the top of the transmission rod 410, and a reset torsion spring 412 fixedly connected to the top of the connecting plate 411. The moving rod 42 is fixedly connected to the top of the connecting plate 411, and the reset torsion spring 412 is connected around the outside of the moving rod 42. The top end of the reset torsion spring 412 abuts against the bottom end of the mounting cylinder 41. When the output end of the hydraulic cylinder 22 retracts, the moving plate 23 moves upward, causing the swing rod 413 to swing upward, making the swing seat 48 rotate clockwise around the pin 49. This, in turn, drives the moving rod 42 to rotate clockwise and move downward via the transmission rod 410 and connecting plate 411. As the moving rod 42 moves downward, the vacuum suction cup 45 approaches the ejected casting. The controller activates the vacuum generator of the vacuum suction cup 45, causing the vacuum suction cup 45 to generate negative pressure, adsorbing the casting. The vacuum suction cup 45 carries the casting away from the lower mold 25, completing the casting unloading. The reset torsion spring 412 is connected around the outside of the moving rod 42, with its top end abutting against the bottom end of the mounting cylinder 41. During the reset process, the reset torsion spring 412 assists the moving rod 42 in resetting, returning it to its initial position.

[0038] It should be noted that a pin 49 extending to the outside is rotatably connected to the middle of the swing seat 48, and the end of the pin 49 away from the swing seat 48 is fixedly installed inside the support base 1. A swing rod 413 is rotatably connected to the top left side of the swing seat 48 through a hinge seat, and the end of the swing rod 413 away from the swing seat 48 is hinged to the bottom of the moving plate 23.

[0039] The working principle of the above embodiments is as follows:

[0040] In operation, the hydraulic cylinder 22 is extended and retracted via the controller, pushing the moving plate 23 downwards, causing the upper mold 24 and lower mold 25 to close, thus forming the casting. After forming, the hydraulic cylinder 22 reverses direction, causing the moving plate 23 to move upwards, separating the upper mold 24 from the lower mold 25. The upward movement of the moving plate 23 drives the rack 311 via the connecting rod 312. The rack 311 meshes with the gear 310, driving the gear 310 to rotate, which in turn drives the fan 39 to rotate. The airflow generated by the fan 39 enters the piston cylinder 32 through the connecting pipe 33, pushing the piston plate 35 upwards. The upward movement of the piston plate 35 drives the ejector rod 36 and the ejector plate 37 upwards, ejecting the casting from the lower mold 25. Under the action of the return torsion spring 412, the moving rod 42 drives the vacuum suction cup 45 downwards via the transmission rod 410 and the connecting plate 411, approaching the casting. The vacuum generator of the vacuum suction cup 45 is activated by the controller, creating negative pressure that adheres to the casting. The moving rod 42 moves upward through the pulley 46 in the transmission groove 47, lifting the casting to a certain height. The moving rod 42 continues to move, and through the linkage of the swing seat 48 and the swing rod 413, the casting is moved to the designated unloading position, completing the unloading. After the casting is unloaded, the moving rod 42 is reset by the return torsion spring 412. The return spring 38 in the ejection structure 3 resets the top plate 37 and the ejector rod 36, preparing for the next demolding operation. The entire demolding and unloading process is automated by the hydraulic cylinder 22, the blower 39, and the vacuum suction cup 45, reducing manual intervention and improving production efficiency and equipment stability.

[0041] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A cast processing mold facilitating demolding, characterized by: The utility model provides a castings forming device, including support seat (1) and the setting of forming mechanism (2) at support seat (1) top and extend to its inside, the outside of support seat (1) is provided with the ejection structure (3) for extending to its inside for casting ejection, the outside of support seat (1) is provided with the rotary lifting adsorption unloading mechanism (4) for the automatic unloading of casting, The forming mechanism (2) comprises a mounting plate (21), a hydraulic cylinder (22), a moving plate (23), an upper mold (24) and a lower mold (25); The ejection structure (3) comprises a tapered cylinder (31) and a piston cylinder (32) fixedly connected to the inside and the outer side wall of the support seat (1) respectively, a connecting pipe (33) fixedly connected between the tapered cylinder (31) and the piston cylinder (32), a breather valve (34) fixedly installed in the connecting pipe (33), a piston plate (35) slidingly connected to the inside of the piston cylinder (32), a ejector rod (36) fixedly connected to the top of the piston plate (35), a top plate (37) fixedly connected to the top end of the ejector rod (36), a fan (39) rotatably installed in the tapered cylinder (31), and a transmission structure arranged outside the fan (39). The rotary lifting adsorption unloading mechanism (4) comprises a mounting cylinder (41) fixedly connected to the outside of the support seat (1), a moving rod (42) rotatably connected to the inside of the mounting cylinder (41), a connecting column (43) fixedly connected to the inside of the moving rod (42), a cross rod (44) fixedly connected to the top end of the connecting column (43), a vacuum chuck (45) fixedly installed at one end of the cross rod (44), a guide assembly arranged in the mounting cylinder (41), and a synchronization structure arranged outside the moving rod (42).

2. A cast processing mold facilitating demolding according to claim 1, characterized in that: The mounting plate (21) is fixedly connected to the top of the support seat (1), the hydraulic cylinder (22) is fixedly installed at the top of the mounting plate (21), the moving plate (23) is fixedly installed at the output end of the hydraulic cylinder (22), the upper mold (24) is fixedly connected to the bottom of the moving plate (23), the lower mold (25) is fixedly installed in the support seat (1), and the upper mold (24) is located on the upper surface of the lower mold (25).

3. A cast processing mold facilitating demolding according to claim 1, characterized in that: The transmission structure comprises a gear (310) fixedly installed outside the fan (39), a toothed rod (311) engagedly connected outside the gear (310), and a connecting rod (312) fixedly connected between the toothed rod (311) and the moving plate (23).

4. A castings machining die facilitating demolding according to claim 1, characterized in that: The top plate (37) is slidingly installed in the inside of the lower mold (25) and flush with the inner bottom wall of the lower mold (25), the ejector rod (36) is slidingly connected to the inside of the piston cylinder (32) and extends to the upper surface thereof, a return spring (38) is fixedly installed between the top plate (37) and the piston cylinder (32), and the return spring (38) is connected to the outside of the ejector rod (36).

5. A castings machining die facilitating demolding according to claim 1, characterized in that: The guide assembly comprises a pulley (46) rotatably connected to the outside of the moving rod (42) and a transmission groove (47) formed in the inside of the mounting cylinder (41), the outer diameter of the pulley (46) is matched with the inner diameter of the transmission groove (47), the moving rod (42) is rotatably lifted in the inside of the mounting cylinder (41) and extends to the upper surface thereof through the transmission groove (47).

6. A castings machining die facilitating demolding according to claim 1, characterized in that: The synchronous structure comprises a swing base (48) arranged at the outside of the support base (1), a transmission rod (410) rotatably connected to the right side of the swing base (48), a connecting disc (411) fixedly connected to the top of the transmission rod (410), and a reset torsion spring (412) fixedly connected to the top of the connecting disc (411), the moving rod (42) is fixedly connected to the top of the connecting disc (411), the reset torsion spring (412) is connected to the outside of the moving rod (42), and the top end of the reset torsion spring (412) abuts against the bottom end of the mounting cylinder (41).

7. A castings machining die facilitating demolding according to claim 6, characterized in that: The swing base (48) is rotatably connected with a pin shaft (49) extending to the outside thereof at the middle portion, and one end of the pin shaft (49) away from the swing base (48) is fixedly arranged in the inside of the support base (1).

8. A castings machining die facilitating demolding according to claim 7, characterized in that: The swing base (48) is rotatably connected with a swing rod (413) through a hinged base at the top of the left side, and one end of the swing rod (413) away from the swing base (48) is hinged to the bottom of the moving plate (23).

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