Casting equipment for casting wear-resistant insert ring of piston

Abstract

The invention discloses casting equipment for casting a piston wear-resistant insert ring, which comprises a fixing frame, fixing frames are fixedly connected to opposite sides of the fixing frame, an extension cylinder is fixedly arranged at the bottom of one group of fixing frames, a reversing gear assembly is movably arranged in the group of fixing frames, and the reversing gear assembly is fixedly connected with the extension cylinder. The bottom of the reversing gear assembly penetrates through the bottom of the fixing frame and extends into the extending cylinder. The detection assembly composed of the infrared thermal imager, the liquid level analysis unit and the controller is used for monitoring the liquid level of molten liquid in the mold in real time, when the liquid level reaches a preset value, opening and closing of the first electromagnetic valve are automatically controlled, then the reversing gear assembly is driven to act, automatic reset of the loading barrel is achieved, manual intervention is reduced, and the production efficiency and the automation degree are improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to casting equipment for casting wear-resistant insert rings of pistons. Background Art

[0002] Casting equipment is a machine that melts metal into liquid that meets certain requirements and pours it into a mold. After cooling, solidification and cleaning, it obtains castings with predetermined shapes, sizes and properties.

[0003] When using a ladle to pour the molten metal during the casting process, the operator needs to always pay attention to the position of the molten metal. When the molten metal overflows the inlay ring, the operator has to rely on manual operation to step on the timing foot switch to make the pouring machine flip. However, this completely manual operation method will lead to unstable casting quality. Therefore, a casting equipment for piston wear-resistant inlay ring casting is proposed to solve this problem. Summary of the Invention

[0004] The present invention aims to solve the problems existing in the prior art and provides the following technical solutions:

[0005] Casting equipment for piston wear-resistant inserts, including:

[0006] A fixing frame, wherein opposite sides of the fixing frame are fixedly connected to a fixing frame, wherein an extension cylinder is fixedly provided at the bottom of one group of the fixing frames, a reversing gear assembly is movably provided in the fixing frames of the group, and the bottom of the reversing gear assembly passes through the bottom of the fixing frame and extends into the extension cylinder;

[0007] A loading bucket, wherein both sides of the loading bucket are fixedly connected to rotating rods, and the ends of the rotating rods away from the loading bucket pass through the fixed frame and extend into the interior of the fixed frame, wherein one end of one set of rotating rods extending into the interior of the fixed frame is fixedly sleeved with a bevel gear three adapted to the reversing gear assembly, a flow channel is provided in the side wall of the loading bucket, and multiple groups of delivery pipes are provided in the flow channel, an extension portion connected to the flow channel is integrally formed at the bottom of the loading bucket, an air outlet component connected to the delivery pipe is fixedly inserted in the extension portion, a one-way flow connecting pipe is provided between the air outlet component and the extension cylinder, and a solenoid valve one is installed on the connecting pipe;

[0008] a detection assembly comprising a mounting rod detachably mounted on the fixing frame, an infrared thermal imager mounted at the bottom of one end of the mounting rod, a level analysis unit for real-time analysis of the melt level in the mold captured by the infrared thermal imager, and a controller, the controller being electrically connected to the level analysis unit and the solenoid valve, respectively;

[0009] Among them, when the melt level reaches a preset value, the controller controls the solenoid valve to open, and the gas in the flow channel enters the extension tube through the connecting pipe. When the air pressure in the extension tube pushes the reversing gear assembly upward, the rotation of the bevel gear three is switched in the reverse direction, and the loading barrel is controlled to reset.

[0010] As an improvement of the above technical solution, the reversing gear assembly includes a rotating shaft movably arranged in the fixed frame, the bottom of the rotating shaft passes through the bottom of the fixed frame and extends into the extension tube, the surface of the rotating shaft is located in the fixed frame and the two ends are respectively fixedly sleeved with bevel gear 1 and bevel gear 2, the bottom of the rotating shaft is located in the extension tube and is rotatably connected to a movable disk, and a section of the surface of the rotating shaft located inside the extension tube is wound with spring 1.

[0011] As an improvement of the above technical solution, both ends of the extension tube are provided with limiting rings for limiting the movable disk, and the inner wall of the extension tube is provided with a limiting block integrally formed between the two groups of limiting rings, and the circumferential surface of the movable disk is provided with a limiting groove adapted to the limiting block.

[0012] As an improvement of the above technical solution, a second air outlet pipe is provided in the extension cylinder and below the movable plate. A second solenoid valve is provided on the second air outlet pipe. The second solenoid valve is electrically connected to the controller.

[0013] As an improvement of the above technical solution, the reversing gear assembly also includes a motor fixedly sleeved on the top of the rotating shaft, a mounting sleeve fixedly sleeved on the surface of the motor, and one side of the mounting sleeve is slidably connected to the fixing frame.

[0014] As an improvement of the above technical solution, the air outlet component includes a connecting pipe connected to one side of the extension part and an elastic seal fixed to the end of the connecting pipe away from the extension part. The connecting pipe is arranged on the connecting pipe and is located between the elastic seal and the extension part. An air outlet pipe 1 is connected to the connecting pipe and located at the position of the elastic seal.

[0015] As an improvement of the above technical solution, the elastic sealing member includes a movable plate slidably arranged in the connecting tube, and a second spring is fixedly arranged between the movable plate and the inner wall of the connecting tube.

[0016] Beneficial effects of the present invention:

[0017] The loading barrel is preheated through the air inlet pipe, delivery pipe and runner to avoid rapid cooling of the molten metal due to low temperature when it is poured in, preventing the molten metal from solidifying prematurely on the inner wall of the loading barrel. This ensures the fluidity of the molten metal in the loading barrel and the uniformity and stability of subsequent casting, reduces casting defects such as pores and shrinkage, and improves the casting quality of the piston wear-resistant insert ring;

[0018] The detection component consisting of an infrared thermal imager, a liquid level analysis unit and a controller is used to monitor the melt level in the mold in real time. When the liquid level reaches the preset value, the switch of the solenoid valve 1 is automatically controlled, and then the reversing gear assembly is driven to realize the automatic resetting of the loading barrel, reducing manual intervention and improving production efficiency and automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the overall structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 A in the middle is an enlarged structural diagram;

[0021] Figure 3 For the present invention Figure 1 The enlarged structural diagram at B in the middle;

[0022] Figure 4 This is a schematic diagram of the connection structure between the extension tube and the movable plate of the present invention;

[0023] Figure 5 is a cross-sectional view of the extension tube of the present invention;

[0024] Figure 6 It is a side view of the overall structure of the present invention.

[0025] Figure numerals: 10, fixed bracket; 11, fixed frame; 12, motor; 13, rotating shaft; 14, bevel gear one; 15, bevel gear two; 16, extension tube; 161, limit block; 162, limit ring; 17, movable plate; 18, spring one; 19, connecting pipe; 20, detection component; 21, mounting rod; 22, infrared thermal imager; 30, loading bucket; 301, extension part; 302, connecting pipe; 303, outlet pipe one; 304, spring two; 305, movable plate; 31, delivery pipe; 32, inlet pipe; 33, flow channel; 34, rotating rod; 35, bevel gear three. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] A casting device for casting a wear-resistant piston insert includes: a fixed frame 10, wherein each of opposite sides of the fixed frame 10 is fixedly connected to a fixed frame 11, wherein an extension cylinder 16 is fixedly provided at the bottom of one group of the fixed frames 11, and a reversing gear assembly is movably provided in the fixed frames 11 of the group, and the bottom of the reversing gear assembly extends through the bottom of the fixed frame 11 and into the extension cylinder 16;

[0028] The loading bucket 30 is fixedly connected to a rotating rod 34 on both sides of the loading bucket 30. The ends of the rotating rods 34 away from the loading bucket 30 pass through the fixed frame 11 and extend into the interior of the fixed frame 11. One end of one group of rotating rods 34 extending into the interior of the fixed frame 11 is fixedly sleeved with a bevel gear three 35 adapted to the reversing gear assembly. A flow channel 33 is provided in the side wall of the loading bucket 30, and multiple groups of delivery pipes 31 are provided in the flow channel 33. An extension portion 301 communicating with the flow channel 33 is integrally formed at the bottom of the loading bucket 30, and an air outlet component communicating with the delivery pipe 31 is fixedly inserted in the extension portion 301. A one-way flow connecting pipe 19 is provided between the air outlet component and the extension cylinder 16, and a solenoid valve 1 is installed on the connecting pipe 19;

[0029] The detection assembly 20 includes a mounting rod 21 detachably mounted on the fixing frame 10, an infrared thermal imager 22 mounted at the bottom of one end of the mounting rod 21, a level analysis unit for real-time analysis of the melt level in the mold captured by the infrared thermal imager 22, and a controller, the controller being electrically connected to the level analysis unit and the solenoid valve.

[0030] Among them, when the melt level reaches a preset value, the controller controls the solenoid valve to open, and the gas in the flow channel 33 enters the extension tube 16 through the connecting pipe 19. When the air pressure in the extension tube 16 pushes the reversing gear assembly to move upward, the rotation of the bevel gear 35 is switched in the reverse direction, and the loading barrel 30 is controlled to reset.

[0031] Specifically, the mold is first placed in a designated position, and the solenoid valve is in a closed state. Before the molten metal is poured into the loading barrel 30, hot air is transported through the air inlet pipe 32 to the delivery pipe 31, and then transported from the delivery pipe 31 to the runner 33 to preheat the loading barrel 30. When the molten metal is poured into the loading barrel 30, rapid cooling of the molten metal due to the low temperature of the loading barrel 30 can be avoided. Rapid cooling may cause the molten metal to solidify prematurely on the inner wall surface of the loading barrel 30, affecting the fluidity of the molten metal in the loading barrel 30 and the uniformity and stability of subsequent casting.

[0032] The molten metal is poured into the loading barrel 30, and the loading barrel 30 is in the initial position. When the casting starts, the reversing gear assembly drives the rotating rod 34 to rotate through the bevel gear 35, and the rotating rod 34 drives the loading barrel 30 to rotate toward the mold, so that the molten metal in the loading barrel 30 flows into the mold from the pouring mouth. The molten metal is injected into the mold. As the molten metal is continuously injected, the molten metal level in the mold gradually rises. During this process, the infrared thermal imager 22 takes real-time photos of the molten metal in the mold and transmits the captured image information to the liquid level analysis unit. The liquid level analysis unit performs real-time analysis on the image information transmitted by the infrared thermal imager 22 to determine whether the molten metal level has reached the preset value. When the molten metal level reaches the preset value, the liquid level is adjusted. The analysis unit feeds this information back to the controller. After the controller receives the signal that the liquid level has reached the preset value, it controls the solenoid valve to open. After the solenoid valve is opened, the gas in the flow channel 33 in the loading barrel 30 enters the extension tube 16 through the connecting pipe 19. As the gas continues to enter the extension tube 16, the air pressure in the extension tube 16 gradually increases, and the thrust generated by it pushes the reversing gear assembly upward. The upward movement of the reversing gear assembly will change its meshing state with the bevel gear three 35, thereby switching the rotation direction of the bevel gear three 35. The change in the rotation direction of the bevel gear three 35 drives the rotation direction of the rotating rod 34 fixed to it to change, thereby causing the loading barrel 30 to rotate, thereby realizing the reset action of the loading barrel 30.

[0033] In one embodiment, the reversing gear assembly includes a rotating shaft 13 movably disposed within the fixed frame 11, the bottom of the rotating shaft 13 passing through the bottom of the fixed frame 11 and extending into an extension tube 16, a bevel gear 14 and a bevel gear 2 15 are fixedly sleeved on the surface of the rotating shaft 13 and located at both ends within the fixed frame 11, a movable disk 17 is rotatably connected to the bottom of the rotating shaft 13 and located within the extension tube 16, and a spring 18 is wound around a section of the surface of the rotating shaft 13 located within the extension tube 16;

[0034] After the solenoid valve is opened, the gas in the flow channel 33 in the loading barrel 30 enters the extension tube 16 through the connecting pipe 19. As the gas continues to enter the extension tube 16, the air pressure in the extension tube 16 gradually increases. When the air pressure in the extension tube 16 is greater than the elastic force of the spring 18, the thrust generated pushes the movable plate 17 upward. The upward movement of the movable plate 17 drives the rotating shaft 13 to move upward. When the rotating shaft 13 moves upward, the bevel gear 14 and the bevel gear 2 15 fixed on its surface also move upward. The original bevel gear 3 35 and the bevel gear 1 14 are in a state of rotation. Engagement: As the rotating shaft 13 moves upward, the meshing bevel gear switches from meshing with the bevel gear 1 14 to meshing with the bevel gear 2 15. Since the rotation directions of the bevel gear 1 14 and the bevel gear 2 15 are different with respect to the rotating shaft 13, this meshing switch will change the rotation direction of the bevel gear 3 35. The change in the rotation direction of the bevel gear 35 drives the rotation direction of the rotating rod 34 fixedly connected thereto to change, thereby rotating the loading bucket 30, realizing the reset action of the loading bucket 30, and preparing for the next casting;

[0035] The state is restored after resetting: when the casting is completed, the gas in the extension tube 16 is discharged and the air pressure is reduced. At this time, the elastic potential energy stored in the spring 18 is released, pushing the rotating shaft 13 and the movable disk 17 to move downward and return to the initial position. The rotating shaft 13 moves downward so that the bevel gear 14 and the bevel gear 2 15 also return to the initial meshing position, waiting for the liquid level to reach the preset value during the next casting process to act again. The inner diameter of the spring 18 is larger than the diameter of the rotating shaft 13 to avoid affecting the spring 18 during the rotation of the rotating shaft 13.

[0036] In one embodiment, both ends of the extension tube 16 are provided with a limiting ring 162 for limiting the movable disk 17. The inner wall of the extension tube 16 is provided with a limiting block 161 integrally formed between the two sets of limiting rings 162. The circumferential surface of the movable disk 17 is provided with a limiting groove adapted to the limiting block 161. When the movable disk 17 moves upward, the limiting block 161 is always embedded in the limiting groove, so that the movable disk 17 can only move along the axial direction of the extension tube 16 and will not rotate circumferentially. The limiting ring 162 will limit the moving distance of the movable disk 17.

[0037] In one embodiment, an air outlet pipe 2 is provided in the extension tube 16 and below the movable disk 17, and an electromagnetic valve 2 is provided on the air outlet pipe 2. The electromagnetic valve 2 is electrically connected to the controller. When the movable disk 17 and the rotating shaft 13 need to be restored to their initial positions, the controller sends a command to open the electromagnetic valve 2, and the air outlet pipe 2 located below the movable disk 17 in the extension tube 16 is opened. The gas in the extension tube 16 is discharged through the air outlet pipe 2. As the gas is discharged, the air pressure in the extension tube 16 decreases.

[0038] In one embodiment, the reversing gear assembly also includes a motor 12 fixedly sleeved on the top of the rotating shaft 13, and a mounting sleeve fixedly sleeved on the surface of the motor 12, one side of the mounting sleeve is slidably connected to the fixed frame 10. The motor 12 can provide rotational force for the rotating shaft 13, and when the rotating shaft 13 moves up and down, the motor 12 can move up and down along the fixed frame 10 through the mounting sleeve.

[0039] In one embodiment, the air outlet component includes a connecting pipe 302 connected to one side of the extension portion 301, an elastic seal fixedly arranged at one end of the connecting pipe 302 away from the extension portion 301, the connecting pipe 19 is arranged on the connecting pipe 302 and located between the elastic seal and the extension portion 301, and an air outlet pipe 1 303 is connected to the connecting pipe 302 and located at the position of the elastic seal, and the elastic seal includes a movable plate 305 slidingly arranged in the connecting pipe 302, and a spring 2 304 is fixedly arranged between the movable plate 305 and the inner wall of the connecting pipe 302. During the casting process, when the solenoid valve 1 is not opened, the air pressure in the flow channel 33 continues to increase. When the thrust generated by the air pressure is greater than the elastic force of the spring 2 304, the movable plate 305 overcomes the elastic force of the spring 2 304 and slides in the connecting pipe 302. As the movable plate 305 moves, the air outlet pipe After the solenoid valve 1 is opened, the gas in the connecting pipe 302 enters the extension tube 16 through the connecting pipe 19, causing the air pressure in the connecting pipe 302 to decrease. At this time, the elastic force of the spring 2 304 is greater than the thrust generated by the air pressure in the connecting pipe 302. The spring 2 304 pushes the movable plate 305 to slide back to its original position, and the air outlet pipe 1 303 is closed. In this way, the gas in the flow channel 33 can only enter the extension tube 16 through the connecting pipe 19, which can quickly increase the air pressure in the extension tube 16 and generate sufficient upward thrust. As time goes by, the air pressure in the connecting pipe 302 accumulates again. After its air pressure is greater than the elastic force of the spring 2 304, the movable plate 305 moves, the air outlet pipe 1 303 opens, and the gas flows out. Since the connecting pipe 19 is a one-way flow, the air pressure in the extension tube 16 will not decrease.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Casting equipment for piston wear-resistant inserts, characterized in that: include: A fixed frame (10), wherein opposite sides of the fixed frame (10) are fixedly connected to fixed frames (11), wherein an extension tube (16) is fixedly provided at the bottom of one group of the fixed frames (11), and a reversing gear assembly is movably provided in the fixed frames (11) of the group, and the bottom of the reversing gear assembly passes through the bottom of the fixed frame (11) and extends into the extension tube (16); A loading barrel (30), wherein both sides of the loading barrel (30) are fixedly connected with a rotating rod (34), and the ends of the rotating rods (34) away from the loading barrel (30) pass through the fixed frame (11) and extend into the interior of the fixed frame (11), wherein one end of one group of rotating rods (34) extending into the interior of the fixed frame (11) is fixedly sleeved with a bevel gear three (35) adapted to the reversing gear assembly, a flow channel (33) is provided in the side wall of the loading barrel (30), and a plurality of delivery pipes (31) are provided in the flow channel (33), and an extension portion (301) in communication with the flow channel (33) is integrally formed at the bottom of the loading barrel (30), and an air outlet component in communication with the delivery pipe (31) is fixedly inserted in the extension portion (301), and a one-way flow connecting pipe (19) is provided between the air outlet component and the extension cylinder (16), and a solenoid valve (19) is installed on the connecting pipe (19); A detection assembly (20) includes a mounting rod (21) detachably mounted on the fixing frame (10), an infrared thermal imager (22) mounted at the bottom of one end of the mounting rod (21), a liquid level analysis unit for real-time analysis of the melt level in the mold photographed by the infrared thermal imager (22), and a controller, wherein the controller is electrically connected to the liquid level analysis unit and the solenoid valve, respectively; When the melt level reaches a preset value, the controller controls the solenoid valve to open, and the gas in the flow channel (33) enters the extension tube (16) through the connecting tube (19). When the air pressure in the extension tube (16) pushes the reversing gear assembly upward, the rotation of the bevel gear three (35) is switched in the reverse direction, and the loading barrel (30) is controlled to reset.

2. The casting equipment for piston wear-resistant inserts according to claim 1, characterized in that: The reversing gear assembly includes a rotating shaft (13) movably arranged in the fixed frame (11), the bottom of the rotating shaft (13) passes through the bottom of the fixed frame (11) and extends into the extension tube (16), the surface of the rotating shaft (13) and the two ends located in the fixed frame (11) are respectively fixedly sleeved with a bevel gear 1 (14) and a bevel gear 2 (15), the bottom of the rotating shaft (13) and the extension tube (16) are rotatably connected to a moving disk (17), and a section of the surface of the rotating shaft (13) and the interior of the extension tube (16) is wound with a spring 1 (18).

3. The casting equipment for piston wear-resistant inserts according to claim 2, characterized in that: Both ends of the extension tube (16) are provided with limiting rings (162) for limiting the movable disk (17); the inner wall of the extension tube (16) is provided with a limiting block (161) integrally formed between the two groups of limiting rings (162); and the circumferential surface of the movable disk (17) is provided with a limiting groove adapted to the limiting block (161).

4. The casting equipment for piston wear-resistant inserts according to claim 3, characterized in that: A second air outlet pipe is provided in the extension tube (16) and below the movable plate (17). A second solenoid valve is provided on the second air outlet pipe. The second solenoid valve is electrically connected to the controller.

5. The casting equipment for piston wear-resistant inserts according to claim 2, characterized in that: The reversing gear assembly further comprises a motor (12) fixedly sleeved on the top of the rotating shaft (13); a mounting sleeve is fixedly sleeved on the surface of the motor (12); and one side of the mounting sleeve is slidably connected to the fixing frame (10).

6. The casting equipment for piston wear-resistant inserts according to claim 1, characterized in that: The air outlet assembly comprises a connecting pipe (302) connected to one side of the extension portion (301), an elastic sealing member fixedly arranged at one end of the connecting pipe (302) away from the extension portion (301), the connecting pipe (19) being arranged on the connecting pipe (302) and located between the elastic sealing member and the extension portion (301), and an air outlet pipe 1 (303) being connected to the connecting pipe (302) and located at the position of the elastic sealing member.

7. The casting equipment for piston wear-resistant inserts according to claim 6, characterized in that: The elastic sealing member comprises a movable plate (305) slidably arranged in the connecting tube (302), and a second spring (304) is fixedly arranged between the movable plate (305) and the inner wall of the connecting tube (302).

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