High-strength and high-toughness alloy piston casting equipment and process for air compressor

Abstract

The invention relates to the technical field of alloy piston casting, in particular to high-strength and high-toughness alloy piston casting equipment and process for an air compressor, which comprises an operation cabinet and a frame body, and further comprises a lower mold, a pair of upper molds, a driving assembly, a spraying assembly and a position adjusting assembly, in order to carry out rapid demolding, uniform cooling and uniform spraying of a demolding agent, the pair of upper molds which are detachable is arranged, and the upper molds are far away from each other during mold opening, so that demolding failure caused by mutual contact with an alloy piston body is avoided; and meanwhile, by arranging a pair of spraying assemblies, the two water nozzles can be driven to rotate around the peripheries of the upper molds to spray water for uniform cooling, and the two reagent nozzles can also be driven to swing between the two upper molds in a reciprocating mode to uniformly spray a release agent, so that the casting quality and the demolding quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy piston casting, and in particular to a casting equipment and process for high-strength and high-toughness alloy pistons for air compressors. Background Art

[0002] The air compressor piston is a key moving part that realizes the gas compression function in the air compressor. It is usually composed of parts such as a piston head, a piston skirt, and a piston pin boss, and makes a reciprocating motion in the cylinder to realize the intake, compression, and discharge of air by changing the cylinder volume. The performance and quality of the air compressor piston directly affect key indicators such as the working efficiency, compression ratio, energy consumption, and reliability of the air compressor. Therefore, alloy materials such as copper alloy and titanium alloy are often used and manufactured by casting processes to endow it with high strength and high toughness.

[0003] Since most of the alloy pistons for air compressors are of a cylindrical structure and have annular grooves with complex structures on the surface, after casting, a lathe is required to process the grooves on the piston blank. This not only has a large workload and a complex processing process, but also is difficult to control the accuracy. There is a kind of alloy piston casting equipment in the prior art, which adopts a die-casting process. The liquid alloy is quickly pressed into the mold cavity under high pressure and cooled and solidified under pressure to form. It can make the liquid alloy be cast into shape at one time inside the mold. The advantages are that the casting process is simplified and the casting accuracy is improved.

[0004] However, this scheme is not convenient for demolding. Due to the complex structure of the alloy piston, simple one-way demolding easily causes the mold and the alloy piston to conflict with each other, resulting in demolding failure. And it is not convenient for the operations of cooling and spraying the release agent. In the prior art, cooling is mostly carried out by fixing the water spray nozzles to cool the outside of the mold, but the water flow spraying is not uniform enough, resulting in poor cooling and shaping quality of the alloy piston. And when spraying the release agent, the nozzle needs to be inserted into the mold to make the release agent cover the corners inside the mold, and the operation is very inconvenient. Summary of the Invention

[0005] The purpose of the present invention is to provide a casting equipment and process for high-strength and high-toughness alloy pistons for air compressors, which can perform rapid demolding, and uniform cooling and uniform spraying of the release agent.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Provided is a high-strength and tough alloy piston casting device for an air compressor, including an operation cabinet and a frame body. The bottom of the frame body is fixedly connected to the top of the operation cabinet. The device further includes a lower mold, a pair of upper molds, a driving component, a spraying component, and a position adjusting component. The lower mold is vertically movably installed on the operation cabinet, and the upper molds are horizontally slidably installed on the operation cabinet. The two upper molds are symmetrically arranged at both ends of the lower mold and are in mutual contact. The bottom of the upper mold is in mutual contact with the top of the lower mold. The driving component is installed on the frame body and is used to drive the upper mold and the lower mold to move. The spraying component includes a reagent spray head, a water spray head, and a support shaft. The reagent spray head is fixedly connected to one side of the bottom of the support shaft, and the water spray head is fixedly connected to one end of the bottom of the support shaft. The position adjusting component includes a support plate and a swinging mechanism. The support plate is rotatably installed on the frame body, and the support shaft passes through the support plate and is rotatably connected to it. The swinging mechanism is installed on the support plate and is used to drive the reagent spray head to swing.

[0008] Preferably, the number of spraying components and the number of swinging mechanisms are both one pair. The two spraying components are centrally symmetrically distributed at both ends of the support plate. When the two upper molds are in mutual contact, the spraying component can rotate around the periphery of the upper mold. When the two upper molds are separated, the spraying component is located between the two upper molds and the support shaft can reciprocally rotate.

[0009] Preferably, the position adjusting component further includes a first motor, a main shaft, a cylinder, and a main gear. The bottom of the first motor is fixedly connected to the top of the frame body. The output shaft of the first motor passes through the top wall of the frame body and is coaxially connected to the main shaft. The bottom of the main shaft is rotatably connected to the cylinder. The bottom of the cylinder is fixedly connected to the middle of the support plate. The main gear is coaxially connected to the periphery of the main shaft.

[0010] Preferably, the swinging mechanism includes a rotating shaft, a sub-gear, a missing gear, a spur gear, and a torsion spring. The rotating shaft passes through the support plate and is rotatably connected to it. The sub-gear and the missing gear are both coaxially connected to the periphery of the rotating shaft. The two sub-gears are respectively meshed with both ends of the main gear. The spur gear is coaxially connected to the periphery of the support shaft. The spur gear is meshed with the missing gear. The torsion spring is sleeved on the periphery of the support shaft. One end of the torsion spring is fixedly connected to the support shaft, and the other end of the torsion spring is fixedly connected to the support plate.

[0011] Preferably, a limiting rod is fixedly connected to one end of the upper mold. The limiting rod abuts against the support plate. A slot is opened at the top of one end of the upper mold. The slot is in plug-in fit with the limiting rod. The position adjusting component further includes a ratchet wheel, a plurality of pawls, and a plurality of first springs. The top of the ratchet wheel abuts against the top wall of the cylinder. The bottom of the main shaft passes through the top wall of the cylinder and is coaxially connected to the ratchet wheel. A plurality of grooves are opened on the inner wall of the cylinder. One end of the pawl is rotatably connected to the groove, and the other end of the pawl abuts against the periphery of the ratchet wheel. One end of the first spring is fixedly connected to the pawl, and the other end of the first spring is fixedly connected to the inner wall of the groove.

[0012] Preferably, the spraying assembly further includes a collecting water tank. The bottom of the collecting water tank passes through the top wall of the operation cabinet and is fixedly connected thereto. The driving assembly includes a second motor, a round rod, a delay transmission mechanism, a vertical screw rod, and a slider. The bottom of the second motor is fixedly connected to the top of the frame body. The output shaft of the second motor passes through the top wall of the frame body and is coaxially connected to the round rod. The top of the round rod is rotatably connected to the top wall of the frame body. The bottom of the round rod is coaxially connected to the top of the vertical screw rod through the delay transmission mechanism. The bottom of the vertical screw rod is rotatably connected to the top of the operation cabinet. The slider is threadedly connected to the outer periphery of the vertical screw rod. One side of the slider passes through the collecting water tank and is slidably connected thereto. One side of the lower mold is fixedly connected to the slider.

[0013] Preferably, the driving assembly further includes a pair of belt pulleys, a long rod, a pair of bevel gears, a bidirectional screw rod, a guide rod, and a pair of sliding plates. The top of the long rod is rotatably connected to the top wall of the frame body. The two belt pulleys are respectively coaxially connected to the outer peripheries of the round rod and the long rod. The two belt pulleys are driven by a belt. The bottom of the long rod is coaxially connected to one of the bevel gears. The bidirectional screw rod is rotatably installed on the inner wall of the frame body. The other bevel gear is coaxially connected to the outer periphery of the bidirectional screw rod. The two bevel gears are meshed with each other. The guide rod is fixedly installed on the inner wall of the frame body. One side of each of the two sliding plates is fixedly connected to one of the upper molds. The other side of the sliding plate is threadedly connected to the outer periphery of the bidirectional screw rod. The thread grooves on the inner walls of the two sliding plates have opposite directions. The guide rod passes through the sliding plate and is slidably connected thereto.

[0014] Preferably, the delay transmission mechanism includes a housing, a clamping block, and a second spring. One side of the housing is fixedly connected to the inner wall of the frame body. The bottom of the round rod passes through the housing and is rotatably connected thereto. A long groove is formed at the eccentric position at the bottom of the round rod. The top of the clamping block is slidably connected to the long groove. One end of the second spring is fixedly connected to the top wall of the long groove. The other end of the second spring is fixedly connected to the top of the clamping block. A semi-circular groove is formed on the top wall of the vertical screw rod. A clamping groove is formed on the bottom wall of one side of the semi-circular groove. The bottom of the clamping block is slidably connected to the semi-circular groove. The bottom of the clamping block is in clamping fit with the clamping groove. The long rod passes through the housing and is rotatably connected thereto.

[0015] Preferably, the spraying assembly further includes a collecting water tank. The bottom of the collecting water tank is fixedly connected to the bottom wall of the operation cabinet. The top of the collecting water tank is communicated with the bottom of the collecting water tank. A top rod is fixedly connected to the inner wall of the collecting water tank. A sliding rod and a tension spring are arranged inside the lower mold. The sliding rod passes through the lower mold and is slidably connected thereto. The bottom of the sliding rod abuts against the top of the top rod. The top of the sliding rod abuts against the top of the alloy piston body. The tension spring is sleeved on the outer periphery of the sliding rod. One end of the tension spring is fixedly connected to the sliding rod. The other end of the tension spring is fixedly connected to the inner wall of the lower mold.

[0016] The present invention also provides a casting process for a high-strength and high-toughness alloy piston for an air compressor, comprising the following steps. Step 1: The driving mechanism arranged on the top of the operating cabinet can first drive the lower mold to rise, then drive the two upper molds to approach each other to complete mold closing, and then inject liquid alloy into the interior of the upper mold for casting. Step 2: The position adjustment component arranged on the frame can drive the two water spray nozzles to rotate around the periphery of the upper mold, and at the same time make the water spray nozzles work to evenly spray cooling water on the outer wall of the upper mold for cooling. Step 3: Rotate the two spraying components to both sides of the upper mold, then separate the two upper molds, lower the lower mold into the collection water tank, and the sliding rod pushes out the alloy piston body to complete demolding. Then rotate the spraying component between the two upper molds. Step 4: Drive the support shaft to reciprocally rotate through the swinging mechanism, and at the same time make the reagent spray nozzle work to evenly spray the mold release agent on the inner wall of the upper mold.

[0017] Advantages of the present invention:

[0018] 1. Through a pair of detachable upper molds in the present invention, when the mold is opened, the two upper molds move away from each other, thus avoiding the failure of demolding caused by mutual contact with the alloy piston body. At the same time, through the arranged pair of spraying components, the two water spray nozzles can be driven to rotate around the periphery of the upper mold to spray water for uniform cooling, and the two reagent spray nozzles can also be driven to reciprocally swing between the two upper molds to evenly spray the mold release agent, thereby improving the casting quality and demolding quality.

[0019] 2. The present invention is provided with a position adjustment component, which can move the spraying component between the two upper molds before the casting operation for convenient spraying of the mold release agent, and move the spraying component to the periphery of the upper mold during the casting process for convenient cooling, with a high degree of automation. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly introduced below. Obviously, the following described drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is the three-dimensional structure schematic of the present invention Figure 1 .

[0022] Figure 2 is the three-dimensional structure schematic of the present invention Figure 2 .

[0023] Figure 3 is the three-dimensional structure schematic of the present invention Figure 3 .

[0024] Figure 4It is a cross-sectional view of the collection water tank structure of the present invention.

[0025] Figure 5 It is a schematic structural diagram of the spraying component of the present invention.

[0026] Figure 6 It is a schematic structural diagram of the driving component of the present invention.

[0027] Figure 7 It is a cross-sectional view of the round rod structure of the present invention.

[0028] Figure 8 It is a cross-sectional view of the lower mold structure of the present invention.

[0029] Figure 9 It is an exploded view of the position adjustment component structure of the present invention.

[0030] Figure 10 It is Figure 2 an enlarged view of the structure at position A in

[0031] Figure 11 It is a cross-sectional view of the cylinder structure of the present invention.

[0032] In the figure:

[0033] 1. Operation cabinet; 10. Frame body; 11. Lower mold; 110. Slide bar; 111. Tension spring; 12. Upper mold; 120. Limit rod; 121. Slot; 13. Alloy piston body;

[0034] 2. Driving component; 20. Second motor; 21. Round rod; 210. Long groove; 22. Vertical screw; 220. Semi-circular groove; 221. Card slot; 23. Slide block; 24. Pulley; 25. Long rod; 26. Bevel gear; 27. Bi-directional screw; 28. Guide rod; 29. Slide plate;

[0035] 3. Spraying component; 30. Reagent spray head; 31. Water spray head; 32. Support shaft; 33. Collection water tank; 34. Push rod; 35. Collection water tank;

[0036] 4. Position adjustment component; 40. Support plate; 41. First motor; 42. Main shaft; 43. Cylinder; 430. Groove; 44. Main gear; 45. Ratchet; 46. Pawl; 47. First spring;

[0037] 5. Swing mechanism; 50. Rotating shaft; 51. Sub-gear; 52. Deficient gear; 53. Straight gear; 54. Torsion spring;

[0038] 6. Delay transmission mechanism; 60. Housing; 61. Block; 62. Second spring. Detailed implementation manners

[0039] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments.

[0040] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0041] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0042] In the description of the present invention, unless otherwise clearly specified and defined, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] As Figures 1 to 11 shown:

[0044] A high-strength and toughness alloy piston casting device for an air compressor comprises an operating cabinet 1 and a frame 10, wherein the bottom of the frame 10 is fixedly connected to the top of the operating cabinet 1, and further comprises a lower mold 11, a pair of upper molds 12, a driving assembly 2, a spraying assembly 3 and a position adjustment assembly 4, wherein the lower mold 11 is vertically movable and installed on the operating cabinet 1, and the upper mold 12 is horizontally slidably installed on the operating cabinet 1, and the two upper molds 12 are symmetrically arranged at both ends of the lower mold 11 and fit each other, and the bottom of the upper mold 12 fits each other with the top of the lower mold 11, and the driving assembly 2 is installed on the frame 10 On the top, the driving assembly 2 is used to drive the upper mold 12 and the lower mold 11 to move, the spraying assembly 3 includes a reagent nozzle 30, a water nozzle 31 and a support shaft 32, the reagent nozzle 30 is fixedly connected to one side of the bottom of the support shaft 32, and the water nozzle 31 is fixedly connected to one end of the bottom of the support shaft 32. The position adjustment assembly 4 includes a support plate 40 and a swing mechanism 5. The support plate 40 is rotatably installed on the frame 10, the support shaft 32 passes through the support plate 40 and is rotatably connected thereto, and the swing mechanism 5 is installed on the support plate 40. The swing mechanism 5 is used to drive the reagent nozzle 30 to swing.

[0045] Before the casting operation is carried out, the spraying assembly 3 is located between the two upper molds 12 by setting the position adjustment assembly 4, so that the swing mechanism 5 and the reagent nozzle 30 work simultaneously, and the reagent nozzle 30 can be reciprocated around the support shaft 32 while spraying the release agent onto the inner wall of the upper mold 12, thereby ensuring that the release agent can also be evenly sprayed on the groove 430 of the upper mold 12, thereby improving the demolding quality.

[0046] Then rotate the spraying assembly 3 to both sides between the upper mold 12 to prevent the upper mold 12 from being blocked. Make the driving mechanism work, first drive the lower mold 11 to rise, and then drive the two upper molds 12 to move closer to each other to complete the mold closing. During this process, the upper mold 12 and the lower mold 11 move successively to prevent the two from conflicting with each other. Then inject the liquid alloy into the upper mold 12 for casting. At the same time, the position adjustment assembly 4 drives the two water nozzles 31 to rotate around the outer periphery of the upper mold 12, and makes the water nozzles 31 work, spraying cooling water evenly on the outer wall of the upper mold 12 to cool it down, so that the alloy mold body is evenly cooled and the casting quality is improved.

[0047] After the casting is completed, the upper mold 12 and the lower mold 11 are moved in opposite directions to open the mold, and the sliding rod 110 inside the lower mold 11 lifts up the alloy piston body 13 during the lowering process to facilitate demoulding.

[0048] like Figures 1 to 11 As shown:

[0049] The number of spraying components 3 and the number of swinging mechanisms 5 are both one pair. The two spraying components 3 are symmetrically distributed at both ends of the support plate 40. When the two upper molds 12 are mutually attached, the spraying components 3 can rotate around the periphery of the upper molds 12. When the two upper molds 12 are separated, the spraying components 3 are located between the two upper molds 12 and the support shafts 32 can reciprocally rotate.

[0050] The position adjusting component 4 further includes a first motor 41, a main shaft 42, a cylinder 43, and a main gear 44. The bottom of the first motor 41 is fixedly connected to the top of the frame body 10. The output shaft of the first motor 41 passes through the top wall of the frame body 10 and is coaxially connected to the main shaft 42. The bottom of the main shaft 42 is rotatably connected to the cylinder 43. The bottom of the cylinder 43 is fixedly connected to the middle of the support plate 40. The main gear 44 is coaxially connected to the periphery of the main shaft 42.

[0051] The swinging mechanism 5 includes a rotating shaft 50, a secondary gear 51, a missing gear 52, a spur gear 53, and a torsion spring 54. The rotating shaft 50 passes through the support plate 40 and is rotatably connected thereto. Both the secondary gear 51 and the missing gear 52 are coaxially connected to the periphery of the rotating shaft 50. The two secondary gears 51 are respectively meshed with both ends of the main gear 44. The spur gear 53 is coaxially connected to the periphery of the support shaft 32. The spur gear 53 is meshed with the missing gear 52. The torsion spring 54 is sleeved on the periphery of the support shaft 32. One end of the torsion spring 54 is fixedly connected to the support shaft 32, and the other end of the torsion spring 54 is fixedly connected to the support plate 40.

[0052] A limiting rod 120 is fixedly connected to one end of the upper mold 12. The limiting rod 120 abuts against the support plate 40. A slot 121 is formed at the top of one end of the upper mold 12. The slot 121 is in plug-in fit with the limiting rod 120. The position adjusting component 4 further includes a ratchet wheel 45, a plurality of pawls 46, and a plurality of first springs 47. The top of the ratchet wheel 45 abuts against the top wall of the cylinder 43. The bottom of the main shaft 42 passes through the top wall of the cylinder 43 and is coaxially connected to the ratchet wheel 45. A plurality of grooves 430 are formed in the inner wall of the cylinder 43. One end of the pawl 46 is rotatably connected to the groove 430. The other end of the pawl 46 abuts against the periphery of the ratchet wheel 45. One end of the first spring 47 is fixedly connected to the pawl 46, and the other end of the first spring 47 is fixedly connected to the inner wall of the groove 430.

[0053] During the casting process, the first motor 41 is powered on to work, driving the main shaft 42 and the ratchet wheel 45 to rotate. The periphery of the ratchet wheel 45 abuts against the pawls 46, causing the cylinder 43 to rotate following the main shaft 42, driving the support frame and the two spraying components 3 to rotate around the periphery of the upper mold 12. At the same time, the water spray heads 31 work to evenly spray cooling water on the outer surface of the upper mold 12, thereby evenly cooling the alloy piston body 13.

[0054] Before mold opening, the output shaft of the first motor 41 drives the main shaft 42 and the support plate 40 to rotate, and rotates the two spraying assemblies 3 to both sides of the upper mold 12. Subsequently, after mold opening, the support plate 40 continues to rotate. At this time, the limiting rod 120 on the upper mold 12 disengages from the slot 121. When the support plate 40 rotates between the two upper molds 12, both ends of the support plate 40 abut against the two limiting rods 120 respectively, so that the support plate 40 is fixed. As the main shaft 42 continues to rotate, the ratchet 45 pushes the pawl 46 to rotate in the groove 430, and the first spring 47 is compressed and then rebounds, so that although the pawl 46 cannot hinder the rotation of the ratchet 45, it always abuts against the ratchet 45, and relative rotation occurs between the main shaft 42 and the cylinder 43.

[0055] At this time, the main gear 44 rotates following the main shaft 42, and drives the driven gear 51, the rotating shaft 50 and the missing gear 52 to rotate through meshing transmission. Also through the meshing transmission between the missing gear 52 and the spur gear 53, the support shaft 32 is driven to rotate. At the same time, the torsion spring 54 is twisted. Since there is only half a circle of teeth on the periphery of the missing gear 52, every time the reagent nozzle 30 rotates half a circle, the rebound of the torsion spring 54 will drive the reagent nozzle 30 to reset, thus realizing the reciprocating swing of the reagent nozzle 30. During this process, by making the reagent nozzle 30 work, the inner wall of the upper mold 12 can be evenly sprayed with release agent.

[0056] And by setting a pair of spraying assemblies 3, the two upper molds 12 can be simultaneously sprayed with cooling water and release agent, thereby improving the casting efficiency and adapting to the mold opening process of the upper mold 12.

[0057] As Figures 1 to 7 shown:

[0058] The spraying assembly 3 further includes a collection water tank 33. The bottom of the collection water tank 33 passes through the top wall of the operation cabinet 1 and is fixedly connected thereto. The driving assembly 2 includes a second motor 20, a round rod 21, a delay transmission mechanism 6, a vertical screw 22 and a slider 23. The bottom of the second motor 20 is fixedly connected to the top of the frame 10. The output shaft of the second motor 20 passes through the top wall of the frame 10 and is coaxially connected to the round rod 21. The top of the round rod 21 is rotatably connected to the top wall of the frame 10. The bottom of the round rod 21 is coaxially connected to the top of the vertical screw 22 through the delay transmission mechanism 6. The bottom of the vertical screw 22 is rotatably connected to the top of the operation cabinet 1. The slider 23 is threadedly connected to the periphery of the vertical screw 22. One side of the slider 23 passes through the collection water tank 33 and is slidably connected thereto. One side of the lower mold 11 is fixedly connected to the slider 23.

[0059] The driving assembly 2 further includes a pair of belt pulleys 24, a long rod 25, a pair of bevel gears 26, a bidirectional screw 27, a guide rod 28 and a pair of sliding plates 29. The top of the long rod 25 is rotatably connected to the top wall of the frame body 10. The two belt pulleys 24 are coaxially connected to the peripheries of the round rod 21 and the long rod 25 respectively. The two belt pulleys 24 are driven by a belt. The bottom of the long rod 25 is coaxially connected to one of the bevel gears 26. The bidirectional screw 27 is rotatably installed on the inner wall of the frame body 10. The other bevel gear 26 is coaxially connected to the periphery of the bidirectional screw 27. The two bevel gears 26 mesh with each other. The guide rod 28 is fixedly installed on the inner wall of the frame body 10. One side of the two sliding plates 29 is fixedly connected to the two upper molds 12 respectively. The other side of the sliding plate 29 is threadedly connected to the periphery of the bidirectional screw 27. The directions of the thread grooves on the inner walls of the two sliding plates 29 are opposite. The guide rod 28 passes through the sliding plate 29 and is slidably connected thereto.

[0060] The delay transmission mechanism 6 includes a housing 60, a clamping block 61 and a second spring 62. One side of the housing 60 is fixedly connected to the inner wall of the frame body 10. The bottom of the round rod 21 passes through the housing 60 and is rotatably connected thereto. An elongated groove 210 is formed at the eccentric position at the bottom of the round rod 21. The top of the clamping block 61 is slidably connected to the elongated groove 210. One end of the second spring 62 is fixedly connected to the top wall of the elongated groove 210. The other end of the second spring 62 is fixedly connected to the top of the clamping block 61. A semi-circular groove 220 is formed in the top wall of the vertical screw 22. A clamping groove 221 is formed in the bottom wall on one side of the semi-circular groove 220. The bottom of the clamping block 61 is slidably connected to the semi-circular groove 220. The bottom of the clamping block 61 is in clamping fit with the clamping groove 221. The long rod 25 passes through the housing 60 and is rotatably connected thereto.

[0061] When mold opening is performed, the second motor 20 is powered on to work. Its output shaft drives the round rod 21 to rotate. The round rod 21 drives one of the belt pulleys 24 to rotate, and through the belt drive between the two belt pulleys 24, drives the long rod 25 and one of the bevel gears 26 to rotate. Also through the meshing drive between the two bevel gears 26, drives the bidirectional screw 27 to rotate. Through the threaded drive between the bidirectional screw 27 and the sliding plate 29, drives the two sliding plates 29 to slide horizontally along the guide rod 28 and move away from each other, so that the two upper molds 12 move away from each other.

[0062] At the same time, the clamping block 61 at the bottom of the round rod 21 rotates in the semi-circular groove 220. At this time, the second spring 62 is in a compressed state. When the clamping block 61 rotates to the top of the clamping groove 221, the second spring 62 rebounds, pushing the clamping block 61 into the clamping groove 221, so that the round rod 21 and the vertical screw 22 rotate synchronously. At this time, the upper mold 12 has been separated from the alloy piston body 13. Subsequently, the round rod 21 continues to rotate. Through the threaded drive between the vertical screw 22 and the slider 23, drives it to slide vertically downward along the collection water tank 33, thereby driving the lower mold 11 to move downward to prevent the lower mold 11 from conflicting with the upper mold 12.

[0063] When the mold is closed, the round rod 21 rotates in the reverse direction, enabling the upper mold 12 and the lower mold 11 to move in the reverse direction for mold closing. And at the initial stage of the rotation of the round rod 21, due to the engagement of the clamping block 61 with the card slot 221, the vertical screw rod 22 rotates synchronously with the round rod 21, causing the lower mold 11 and the upper mold 12 to move synchronously. After the lower mold 11 moves between the two upper molds 12, the lower mold 11 stops moving. As the round rod 21 continues to rotate, it pushes the clamping block 61 out of the card slot 221 and rotates back to the other side of the semi-circular groove 220, compressing the second spring 62, causing the two upper molds 12 to continue to move a certain distance to complete the mold closing.

[0064] As Figures 1 to 8 shown:

[0065] The spraying assembly 3 further includes a collection water tank 35. The bottom of the collection water tank 35 is fixedly connected to the bottom wall of the operation cabinet 1. The top of the collection water tank 35 is communicated with the bottom of the collection water trough 33. A top rod 34 is fixedly connected to the inner wall of the collection water trough 33. Inside the lower mold 11, there are a slide rod 110 and a tension spring 111. The slide rod 110 passes through the lower mold 11 and is slidably connected thereto. The bottom of the slide rod 110 abuts against the top of the top rod 34. The top of the slide rod 110 abuts against the top of the alloy piston body 13. The tension spring 111 is sleeved around the slide rod 110. One end of the tension spring 111 is fixedly connected to the slide rod 110, and the other end of the tension spring 111 is fixedly connected to the inner wall of the lower mold 11.

[0066] When cooling down, the water flows downward from the upper mold 12 all the way and falls into the collection water trough 33, and then enters the collection water tank 35 for recycling, preventing pollution and being able to recycle and utilize at the same time. When the lower mold 11 moves into the collection water trough 33, the top of the top rod 34 inserts into the lower mold 11 and pushes up the slide rod 110. The tension spring 111 is stretched. The top of the slide rod 110 slides out of the lower mold 11 and pushes up the alloy piston body 13, thus facilitating removal. When the mold is closed, the top rod 34 is separated from the slide rod 110, and the tension spring 111 rebounds, which can drive the slide rod 110 to reset.

[0067] This embodiment also provides a casting process for a high-strength and high-toughness alloy piston for an air compressor, including the following steps. Step 1: The driving mechanism provided at the top of the operation cabinet 1 can first drive the lower mold 11 to rise, and then drive the two upper molds 12 to approach each other to complete mold closing. Subsequently, the liquid alloy is injected into the interior of the upper mold 12 for casting. Step 2: The position switching component provided on the frame 10 can drive the two water spray nozzles 31 to rotate around the periphery of the upper mold 12, and at the same time, make the water spray nozzles 31 work to evenly spray cooling water on the outer wall of the upper mold 12 for cooling. Step 3: Rotate the two spraying components 3 to both sides of the upper mold 12, and then separate the two upper molds 12. The lower mold 11 descends into the collection water tank 33, and the sliding rod 110 ejects the alloy piston body 13 to complete demolding. Then, rotate the spraying component 3 between the two upper molds 12. Step 4: Drive the support shaft 32 to reciprocally rotate through the swinging mechanism 5, and at the same time, make the reagent spray nozzle 30 work to evenly spray the mold release agent on the inner wall of the upper mold 12.

[0068] It should be noted that the above specific implementation manners are only the preferred embodiments of the present invention and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes, etc. can be made to the present invention. However, as long as these transformations do not deviate from the spirit of the present invention, they should be within the protection scope of the present invention. In addition, some terms used in the description and claims of this application are not restrictive, but are only for the convenience of clearly describing the positional relationship and functions between various components.

Claims

1. A high-strength and high-toughness alloy piston casting device for an air compressor, comprising an operation cabinet (1) and a frame body (10), the bottom of the frame body (10) is fixedly connected to the top of the operation cabinet (1), and it is characterized in that, It also includes a lower mold (11), a pair of upper molds (12), a driving assembly (2), a spraying assembly (3), and a position adjusting assembly (4). The lower mold (11) is vertically movably installed on the operation cabinet (1). The upper mold (12) is horizontally slidably installed on the operation cabinet (1). The two upper molds (12) are symmetrically arranged at both ends of the lower mold (11) and are in contact with each other. The bottom of the upper mold (12) is in contact with the top of the lower mold (11). The driving assembly (2) is installed on the frame (10). The driving assembly (2) is used to drive the upper mold (12) and the lower mold (11) to move. The spraying assembly (3) includes a reagent spray head (30), a water spray head (31), and a support shaft (32). The reagent spray head (30) is fixedly connected to one side of the bottom of the support shaft (32). The water spray head (31) is fixedly connected to one end of the bottom of the support shaft (32). The position adjusting assembly (4) includes a support plate (40) and a swinging mechanism (5). The support plate (40) is rotatably installed on the frame (10). The support shaft (32) passes through the support plate (40) and is rotatably connected to it. The swinging mechanism (5) is installed on the support plate (40). The swinging mechanism (5) is used to drive the reagent spray head (30) to swing.

2. The high-strength and high-toughness alloy piston casting equipment for an air compressor according to claim 1, wherein, The number of the spraying assemblies (3) and the number of the swinging mechanisms (5) are both one pair. The two spraying assemblies (3) are centrally symmetrically distributed at both ends of the support plate (40). When the two upper molds (12) are in contact with each other, the spraying assembly (3) can rotate around the periphery of the upper mold (12). When the two upper molds (12) are separated, the spraying assembly (3) is located between the two upper molds (12) and the support shaft (32) can reciprocally rotate.

3. The high-strength and high-toughness alloy piston casting equipment for an air compressor according to claim 2, characterized in that, The position adjusting assembly (4) further includes a first motor (41), a main shaft (42), a cylinder (43), and a main gear (44). The bottom of the first motor (41) is fixedly connected to the top of the frame (10). The output shaft of the first motor (41) passes through the top wall of the frame (10) and is coaxially connected to the main shaft (42). The bottom of the main shaft (42) is rotatably connected to the cylinder (43). The bottom of the cylinder (43) is fixedly connected to the middle of the support plate (40). The main gear (44) is coaxially connected to the periphery of the main shaft (42).

4. The high-strength and high-toughness alloy piston casting equipment for an air compressor according to claim 3, wherein, The swinging mechanism (5) includes a rotating shaft (50), a secondary gear (51), a missing gear (52), a spur gear (53), and a torsion spring (54). The rotating shaft (50) passes through the support plate (40) and is rotatably connected to it. The secondary gear (51) and the missing gear (52) are both coaxially connected to the periphery of the rotating shaft (50). The two secondary gears (51) are respectively meshed with both ends of the main gear (44). The spur gear (53) is coaxially connected to the periphery of the support shaft (32). The spur gear (53) is meshed with the missing gear (52). The torsion spring (54) is sleeved on the periphery of the support shaft (32). One end of the torsion spring (54) is fixedly connected to the support shaft (32), and the other end of the torsion spring (54) is fixedly connected to the support plate (40).

5. A high-strength and high-toughness alloy piston casting device for an air compressor according to claim 3, characterized in that One end of the upper mold (12) is fixedly connected with a limiting rod (120), the limiting rod (120) abuts against the support plate (40), a slot (121) is formed at the top of one end of the upper mold (12), the slot (121) is in plug-in fit with the limiting rod (120), the position adjustment assembly (4) further includes a ratchet wheel (45), a plurality of pawls (46) and a plurality of first springs (47), the top of the ratchet wheel (45) abuts against the top wall of the cylinder (43), the bottom of the main shaft (42) passes through the top wall of the cylinder (43) and is coaxially connected with the ratchet wheel (45), a plurality of grooves (430) are formed in the inner wall of the cylinder (43), one end of the pawl (46) is rotatably connected with the groove (430), the other end of the pawl (46) abuts against the periphery of the ratchet wheel (45), one end of the first spring (47) is fixedly connected with the pawl (46), and the other end of the first spring (47) is fixedly connected with the inner wall of the groove (430).

6. The high-strength and high-toughness alloy piston casting equipment for an air compressor according to claim 1, characterized in that, The spraying assembly (3) further includes a water collecting tank (33), the bottom of the water collecting tank (33) passes through the top wall of the operation cabinet (1) and is fixedly connected with it, the driving assembly (2) includes a second motor (20), a round rod (21), a delay transmission mechanism (6), a vertical screw rod (22) and a slider (23), the bottom of the second motor (20) is fixedly connected with the top of the frame body (10), the output shaft of the second motor (20) passes through the top wall of the frame body (10) and is coaxially connected with the round rod (21), the top of the round rod (21) is rotatably connected with the top wall of the frame body (10), the bottom of the round rod (21) is coaxially connected with the top of the vertical screw rod (22) through the delay transmission mechanism (6), the bottom of the vertical screw rod (22) is rotatably connected with the top of the operation cabinet (1), the slider (23) is threadedly connected with the periphery of the vertical screw rod (22), one side of the slider (23) passes through the water collecting tank (33) and is slidably connected with it, and one side of the lower mold (11) is fixedly connected with the slider (23).

7. An air compressor high-strength and high-toughness alloy piston casting equipment according to claim 7, characterized in that The driving assembly (2) further includes a pair of belt pulleys (24), a long rod (25), a pair of bevel gears (26), a bidirectional screw rod (27), a guide rod (28) and a pair of sliding plates (29), the top of the long rod (25) is rotatably connected with the top wall of the frame body (10), the two belt pulleys (24) are respectively coaxially connected with the peripheries of the round rod (21) and the long rod (25), the two belt pulleys (24) are driven by a belt, the bottom of the long rod (25) is coaxially connected with one of the bevel gears (26), the bidirectional screw rod (27) is rotatably installed on the inner wall of the frame body (10), the other bevel gear (26) is coaxially connected with the periphery of the bidirectional screw rod (27), the two bevel gears (26) are meshed with each other, the guide rod (28) is fixedly installed on the inner wall of the frame body (10), one side of the two sliding plates (29) is respectively fixedly connected with the two upper molds (12), the other side of the sliding plate (29) is threadedly connected with the periphery of the bidirectional screw rod (27), the thread groove directions on the inner walls of the two sliding plates (29) are opposite, and the guide rod (28) passes through the sliding plate (29) and is slidably connected with it.

8. A high-strength and high-toughness alloy piston casting device for an air compressor according to claim 7, characterized in that The delay transmission mechanism (6) includes a housing (60), a clamping block (61) and a second spring (62). One side of the housing (60) is fixedly connected to the inner wall of the frame body (10). The bottom of the round rod (21) passes through the housing (60) and is rotatably connected thereto. A long groove (210) is formed at the eccentric position of the bottom of the round rod (21). The top of the clamping block (61) is slidably connected to the long groove (210). One end of the second spring (62) is fixedly connected to the top wall of the long groove (210), and the other end of the second spring (62) is fixedly connected to the top of the clamping block (61). A semi-circular groove (220) is formed in the top wall of the vertical screw rod (22), and a clamping groove (221) is formed in the bottom wall of one side of the semi-circular groove (220). The bottom of the clamping block (61) is slidably connected to the semi-circular groove (220), and the bottom of the clamping block (61) is in clamping fit with the clamping groove (221). The long rod (25) passes through the housing (60) and is rotatably connected thereto.

9. The high-strength and high-toughness alloy piston casting equipment for an air compressor according to claim 6, characterized in that The spraying assembly (3) further includes a collecting water tank (35). The bottom of the collecting water tank (35) is fixedly connected to the bottom wall of the operation cabinet (1). The top of the collecting water tank (35) is communicated with the bottom of the collecting water trough (33). A top rod (34) is fixedly connected to the inner wall of the collecting water trough (33). A sliding rod (110) and a tension spring (111) are arranged inside the lower mold (11). The sliding rod (110) passes through the lower mold (11) and is slidably connected thereto. The bottom of the sliding rod (110) abuts against the top of the top rod (34). The top of the sliding rod (110) abuts against the top of the alloy piston body (13). The tension spring (111) is sleeved on the periphery of the sliding rod (110). One end of the tension spring (111) is fixedly connected to the sliding rod (110), and the other end of the tension spring (111) is fixedly connected to the inner wall of the lower mold (11).

10. A high-strength and high-toughness alloy piston casting process for an air compressor, characterized in that, It includes the following steps; Step 1: The driving mechanism arranged on the top of the operation cabinet (1) can first drive the lower mold (11) to rise, then drive the two upper molds (12) to approach each other to complete mold clamping, and then inject liquid alloy into the upper mold (12) for casting. Step 2: Through the position swapping assembly arranged on the frame body (10), the two water spray nozzles (31) can be driven to rotate around the upper mold (12), and at the same time, the water spray nozzles (31) can work to evenly spray cooling water on the outer wall of the upper mold (12) for cooling. Step 3: Rotate the two spraying assemblies (3) to both sides of the upper mold (12), then separate the two upper molds (12), lower the lower mold (11) into the collecting water trough (33), the sliding rod (110) pushes out the alloy piston body (13) to complete demolding, and then rotate the spraying assembly (3) between the two upper molds (12). Step 4: Drive the support shaft (32) to rotate reciprocally through the swing mechanism (5), and at the same time, make the reagent spray nozzle (30) work to evenly spray the mold release agent on the inner wall of the upper mold (12).

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