Low-pressure casting device for aluminum alloy pipeline

Abstract

The invention belongs to the technical field of pipeline casting, and particularly relates to an aluminum alloy pipeline low-pressure casting device which comprises a workbench and further comprises a plurality of mold assemblies, each mold assembly comprises a positioning mold, the positioning molds are fixedly installed on the inner wall of the workbench, and a plurality of arc-shaped elastic telescopic rods A are fixedly installed on the inner wall of the workbench; a plurality of sliding molds are slidably mounted on the inner wall of the workbench, the outer walls of the sliding molds are fixedly connected with one ends of a plurality of arc-shaped elastic telescopic rods A correspondingly, and the outer walls of the sliding molds are attached to the outer walls of a plurality of positioning molds correspondingly. By arranging the mold assembly, the driving assembly and other structures, during demolding, the sliding mold is separated from the positioning mold under the action of the driving assembly, after the sliding mold leaves the positioning mold, the bottom of the positioning mold is in an open state, and at the moment, a cast pipeline can be taken out through the bottom of the positioning mold; therefore, the effect of convenient demolding is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline casting, in particular to a low-pressure casting device for an aluminum alloy pipeline. Background Art

[0002] Low-pressure casting of aluminum alloy pipes is an advanced casting process, which is mainly used to produce high-quality and high-precision aluminum alloy pipe parts. The process principle is to introduce dry compressed air or inert gas into a sealed crucible or insulation furnace, so that the aluminum alloy liquid enters the mold cavity along the riser tube under the action of gas pressure and smoothly fills the entire mold. After the casting is completely solidified, the gas pressure on the liquid surface is released, so that the unsolidified aluminum alloy liquid in the riser tube flows back to the crucible or insulation furnace, and finally the mold is opened to take out the casting.

[0003] A Chinese patent with announcement number CN117213239B discloses a wear-resistant pipe casting device, which forms a sintering furnace by controlling the snap-fit ​​of the side shells to sinter the mold. When the side shells are controlled to be away, it is convenient to replace the mold. The movement of the mold assembly in the sintering area is limited by the meshing relationship between the limit rack and the side bracket, thereby avoiding the shaking of the mold during sintering.

[0004] In the current prior art, when performing low-pressure casting of aluminum alloy pipes, the aluminum alloy pipe casting mold is generally composed of two half molds. The two half molds are combined together using bolts and other connecting parts to form a complete mold, and then aluminum liquid is added to the mold for casting. When demolding, it is necessary to first release the bolts and other connecting parts that fix the half molds, and then separate the two half molds for demolding. This casting method is more cumbersome when demolding, which affects work efficiency.

[0005] To this end, the present invention provides a low-pressure casting device for an aluminum alloy pipeline. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the low-pressure casting device of an aluminum alloy pipe described in the present invention includes a workbench and a plurality of mold assemblies, the mold assemblies include a positioning mold, the positioning mold is fixedly installed on the inner wall of the workbench, the inner wall of the workbench is fixedly installed with a plurality of arc-shaped elastic telescopic rods A, the inner wall of the workbench is slidably installed with a plurality of sliding molds, the outer walls of the plurality of sliding molds are respectively fixedly connected to one end of the plurality of arc-shaped elastic telescopic rods A, the outer walls of the plurality of sliding molds are respectively fitted with the outer walls of the plurality of positioning molds, the inner wall of the positioning mold is fixedly installed with a core shaft, and a driving assembly is arranged between the plurality of sliding molds.

[0008] Preferably, the driving assembly includes a driving motor fixedly installed on the bottom of the workbench, the output shaft of the driving motor passes through the workbench and is fixedly installed with a turntable, the outer wall of the turntable is rotatably connected to the inner wall of the workbench, a plurality of outer frames are fixedly installed on the outer wall of the turntable, a torsion spring shaft is fixedly installed on the inner wall of the outer frame, a toggle plate is fixedly installed on the outer wall of the torsion spring shaft and on the inner side of the outer frame, and a force block is fixedly installed on the outer wall of the sliding mold.

[0009] Preferably, a guide rail is fixedly installed on the top of the workbench, a slider is fixedly installed on the outer wall of the sliding mold, and the outer wall of the slider is slidably connected to the inner wall of the guide rail.

[0010] Preferably, a positioning frame is fixedly installed on the outer walls of the positioning mold and the sliding mold, a sliding rod is slidably installed on the inner wall of the positioning frame, a rubber head is fixedly installed on one end of the sliding rod, and the outer walls of several rubber heads respectively contact the outer walls of the positioning mold and the sliding mold, a circular plate is fixedly installed on the outer wall of the sliding rod, an elastic member is fixedly installed between the circular plate and the positioning frame and on the outside of the sliding rod, and a pulling assembly is provided at the end of the sliding rod away from the rubber head.

[0011] Preferably, the pulling assembly includes a circular ring fixedly connected to the sliding rod, a force-bearing rod is slidably mounted on the inner wall of the circular ring, a counterweight block is fixedly mounted on one end of the force-bearing rod, the counterweight block is overlapped on the top of the circular ring, a plurality of brackets are fixedly mounted on the top of the turntable, and an arc-shaped driving plate is fixedly mounted on the outer wall of the bracket.

[0012] Preferably, a limiting rod is fixedly mounted on the inner wall of the positioning frame, a limiting plate is fixedly mounted on the outer wall of the circular plate, and the inner wall of the limiting plate is slidably connected to the outer wall of the limiting rod.

[0013] Preferably, a support seat is fixedly installed on the top of the positioning mold, a flip plate is rotatably installed on the inner wall of the support seat, an arc-shaped elastic telescopic rod B is fixedly installed between the flip plate and the support seat, a pressure plate is fixedly installed on the outer wall of the flip plate, a pressure roller is rotatably installed on the inner wall of the pressure plate, the pressure roller is located above the sliding mold, and an extrusion assembly is provided on one side of the flip plate.

[0014] Preferably, the extrusion assembly comprises a connecting frame, an outer wall of the connecting frame is fixedly connected to an outer wall of the sliding die, and an abutment plate is fixedly mounted on the outer wall of one end of the connecting frame away from the sliding die.

[0015] Preferably, a material box is provided below the workbench, a conveying pipe is connected between the material box and the positioning mold, a plurality of support columns are fixedly installed between the top of the material box and the bottom of the workbench, and a plurality of support legs are fixedly installed at the bottom of the workbench.

[0016] Preferably, a slip ring is slidably installed on the outer wall of the supporting leg, a lifting plate is slidably installed on the inner wall of the supporting leg, the outer wall of the lifting plate is fixedly connected to the inner wall of the slip ring, an automatic telescopic rod is fixedly installed between the top of the lifting plate and the inner wall of the supporting leg, the outer wall of the slip ring is fixedly installed with a supporting plate, and the top of the supporting plate is fixedly installed with a positioning ring, and several of the positioning rings are respectively located under several positioning molds.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The low-pressure casting device for an aluminum alloy pipe described in the present invention has structures such as a mold assembly and a driving assembly. When demolding is performed, the sliding mold is separated from the positioning mold under the action of the driving assembly. After the sliding mold leaves the positioning mold, the bottom of the positioning mold will be in an open state. At this time, the cast pipe can be taken out through the bottom of the positioning mold, thereby achieving the effect of facilitating demolding.

[0019] 2. The low-pressure casting device for an aluminum alloy pipe described in the present invention has structures such as a sliding rod, a rubber head and a pulling component. Under the action of the pulling component, the sliding rod drives the rubber head to knock on the positioning mold and the sliding mold. When the aluminum liquid is injected into the mold, the density of the material can be further improved by vibration, and the strength and durability of the pipe can be enhanced. After the pipe is formed, the adhesion between the pipe and the mold can be eliminated by vibration, thereby preventing the pipe from being strained during demolding and improving the demolding effect of the device.

[0020] 3. The low-pressure casting device for an aluminum alloy pipe described in the present invention has structures such as a flip plate, a pressure roller and an extrusion assembly. During demolding, the extrusion assembly squeezes the flip plate to make it flip downward, thereby moving the pressure plate downward. When the pressure plate moves downward, it drives the pressure roller downward. When the pressure roller moves downward, it squeezes the formed pipe and squeezes the pipe out from the inner side of the positioning mold, thereby achieving the effect of automatic demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the turntable of the present invention;

[0024] Figure 3 It is a schematic diagram of the top structure of the workbench of the present invention;

[0025] Figure 4 It is a schematic diagram of the bottom structure of the workbench of the present invention;

[0026] Figure 5 It is a schematic diagram of the local structure of the positioning mold of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the outer frame of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the positioning mold and the sliding mold in the separated state of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the positioning frame of the present invention;

[0030] Fig. 9 This is a schematic structural diagram of the positioning frame of the present invention from another viewing angle;

[0031] Fig.10 It is a structural schematic diagram of the support seat of the present invention;

[0032] Fig.11 It is a structural schematic diagram of the supporting legs of the present invention;

[0033] Fig.12 It is a schematic diagram of the structure of the slip ring of the present invention;

[0034] In the figure: 1, workbench; 2, positioning mold; 3, arc elastic telescopic rod A; 4, sliding mold; 5, mandrel; 6, driving motor; 7, turntable; 8, outer frame; 9, torsion spring shaft; 10, toggle plate; 11, force block; 12, guide rail; 13, slider; 14, positioning frame; 15, slide bar; 16, rubber head; 17, round plate; 18, elastic member; 19, ring; 20, force rod; 21, counterweight block; 2 2. Bracket; 23. Arc-shaped driving plate; 24. Limit rod; 25. Limit plate; 26. Support seat; 27. Flip plate; 28. Arc-shaped elastic telescopic rod B; 29. ​​Pressing plate; 30. Pressing roller; 31. Connecting frame; 32. Abutment plate; 33. Material box; 34. Conveying pipe; 35. Support column; 36. Support leg; 37. Slip ring; 38. Lifting plate; 39. Automatic telescopic rod; 40. Support plate; 41. Positioning ring. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figures 1 to 7As shown, a low-pressure casting device for an aluminum alloy pipe described in an embodiment of the present invention includes a workbench 1 and a plurality of mold assemblies, wherein the mold assemblies include a positioning mold 2, the positioning mold 2 is fixedly installed on the inner wall of the workbench 1, and a plurality of arc-shaped elastic telescopic rods A3 are fixedly installed on the inner wall of the workbench 1, and a plurality of sliding molds 4 are slidably installed on the inner wall of the workbench 1, and the outer walls of the plurality of sliding molds 4 are respectively fixedly connected to one end of the plurality of arc-shaped elastic telescopic rods A3, and the outer walls of the plurality of sliding molds 4 are respectively fitted with the outer walls of the plurality of positioning molds 2, and a core shaft 5 is fixedly installed on the inner wall of the positioning mold 2, and a driving assembly is arranged between the plurality of sliding molds 4; the mold consists of a positioning mold 2, a sliding mold 4 and a core shaft 5, and the core shaft 5 is fixed to the positioning mold 2. When the casting work is performed, the positioning mold 2 and the sliding mold 4 are kept in a fitted state, the positioning mold 2 is fixedly connected to the workbench 1, and the sliding mold 4 is slidably connected to the workbench 1, and the sliding mold 4 and the positioning mold 2 are moved to the sliding mold 4 and the positioning mold 2. Aluminum liquid is injected between the molds 2 for casting. When the casting work is completed, the driving component is started. When the driving component is working, it will drive the sliding mold 4 to slide, thereby separating the sliding mold 4 and the positioning mold 2. After the sliding mold 4 leaves the positioning mold 2, the pipeline will remain on the inner side of the positioning mold 2 under the restriction of the core shaft 5, and the bottom of the separated positioning mold 2 will be in an open state. At this time, the cast pipeline can be taken out from the bottom of the positioning mold 2 along the core shaft 5 downward. This scheme can realize the automatic and rapid separation of the sliding mold 4 and the positioning mold 2. At the same time, through the design of the structure of the sliding mold 4 and the positioning mold 2, after the molds are separated, the pipeline can be slid downward and taken out, thereby achieving the effect of facilitating demoulding. When the sliding mold 4 leaves the positioning mold 2, the arc-shaped elastic telescopic rod A3 will be squeezed and contracted by the sliding mold 4. After completing the demoulding work, the sliding mold 4 will be reset under the action of the reverse elastic force of the arc-shaped elastic telescopic rod A3, and fit with the positioning mold 2 again.

[0037] like Figures 1 to 7As shown, the driving assembly includes a driving motor 6 fixedly installed at the bottom of the workbench 1, the output shaft of the driving motor 6 passes through the workbench 1 and is fixedly installed with a turntable 7, the outer wall of the turntable 7 is rotatably connected to the inner wall of the workbench 1, a plurality of outer frames 8 are fixedly installed on the outer wall of the turntable 7, a torsion spring shaft 9 is fixedly installed on the inner wall of the outer frame 8, a toggle plate 10 is fixedly installed on the outer wall of the torsion spring shaft 9 and on the inner side of the outer frame 8, and a force block 11 is fixedly installed on the outer wall of the sliding mold 4; when the demoulding work is performed, the driving motor 6 is started, and the driving motor 6 drives the turntable 7 to rotate forward, and when the turntable 7 rotates, it drives the outer frame 8 to rotate, and when the outer frame 8 rotates, it drives the toggle plate 10 through the torsion spring shaft 9. When the plate 10 rotates, the toggle plate 10 will squeeze the force block 11 when it rotates. After being squeezed, the force block 11 will drive the sliding mold 4 to rotate with it, so that the sliding mold 4 is separated from the positioning mold 2, thereby achieving the effect of facilitating demoulding. When rotating forward, the toggle plate 10 is restricted by the outer frame 8 and will not rotate around the torsion spring shaft 9, thereby achieving the effect of pushing the force block 11 to move. When reversing, the outer frame 8 cannot restrict the toggle plate 10. At this time, when the toggle plate 10 is obstructed, the toggle plate 10 will rotate around the torsion spring shaft 9. When the obstruction is removed, the toggle plate 10 will reset under the action of the torsion spring shaft 9, providing conditions for the reverse rotation of the drive motor 6.

[0038] like Figure 1 to Figure 2 As shown, a guide rail 12 is fixedly installed on the top of the workbench 1, and a slider 13 is fixedly installed on the outer wall of the sliding mold 4, and the outer wall of the slider 13 is slidably connected to the inner wall of the guide rail 12; through the cooperation of the guide rail 12 and the slider 13, the sliding mold 4 is limited without affecting the movement of the sliding mold 4, thereby increasing the stability of the sliding mold 4 and preventing the sliding mold 4 from tilting downward due to gravity and affecting the use of the device.

[0039] like Figures 5 to 9As shown, the outer walls of the positioning mold 2 and the sliding mold 4 are fixedly installed with a positioning frame 14, and the inner wall of the positioning frame 14 is slidably installed with a sliding rod 15, and one end of the sliding rod 15 is fixedly installed with a rubber head 16, and the outer walls of several rubber heads 16 respectively contact the outer walls of the positioning mold 2 and the sliding mold 4, and the outer wall of the sliding rod 15 is fixedly installed with a circular plate 17, and an elastic member 18 is fixedly installed between the circular plate 17 and the positioning frame 14 and on the outside of the sliding rod 15, and a pulling component is provided at one end of the sliding rod 15 away from the rubber head 16; when the driving motor 6 drives the turntable 7 to reverse, the turntable 7 will drive the pulling component to rotate, and when the pulling component rotates, it will pull the sliding rod 15 to move on the inner side of the positioning frame 14 in the direction away from the positioning mold 2 and the sliding mold 4, and at this time the elastic member 18 is in a contracted state, and as the turntable rotates, the elastic member 18 is in a contracted state. 7 rotates, the slide bar 15 is no longer subjected to the pulling force, and the reverse elastic force generated by the contraction of the elastic member 18 will be released, so that the slide bar 15 slides in the opposite direction. When the slide bar 15 slides in the opposite direction, the rubber head 16 will knock the positioning mold 2 and the sliding mold 4, and then the driving motor 6 will rotate forward again and then reverse again to achieve reciprocating knocking. When the rubber head 16 is knocking, the elastic force of the elastic member 18 can be used to achieve multiple knocks until the elastic force disappears, so that the positioning mold 2 and the sliding mold 4 vibrate. When the aluminum liquid is injected into the mold, the density of the material can be further improved by vibration, and the strength and durability of the pipeline can be enhanced. After the pipeline is formed, the adhesion between the pipeline and the mold can be eliminated by vibration, thereby preventing the pipeline from being strained during demolding and improving the demolding effect of the device.

[0040] like Figures 5 to 9As shown, the pulling assembly includes a ring 19 fixedly connected to the sliding rod 15, a force-bearing rod 20 is slidably installed on the inner wall of the ring 19, a counterweight block 21 is fixedly installed at one end of the force-bearing rod 20, and the counterweight block 21 is overlapped on the top of the ring 19, and a plurality of brackets 22 are fixedly installed on the top of the turntable 7, and an arc-shaped driving plate 23 is fixedly installed on the outer wall of the bracket 22; when the driving motor 6 drives the turntable 7 to reverse, the driving motor 6 will drive the arc-shaped driving plate 23 to rotate through the bracket 22, and when the arc-shaped driving plate 23 rotates, the force-bearing rod 20 will pass through the arc-shaped groove on the inner side of the arc-shaped driving plate 23, and through the setting of the arc-shaped groove, the force-bearing rod 20 will be pulled during the rotation of the arc-shaped driving plate 23. The force-bearing rod 20 will pull the sliding rod 15 to move away from the positioning mold 2 and the sliding mold 4. As the arc-shaped driving plate 23 rotates, the force-bearing rod 20 will pass through the arc-shaped groove. When the force-bearing rod 20 leaves the arc-shaped groove, the force-bearing rod 20 is no longer restricted, and the elastic force of the elastic member 18 is released, thereby realizing the knocking work. When the driving motor 6 drives the turntable 7 to rotate forward, the arc-shaped driving plate 23 will squeeze one end of the force-bearing rod 20, and one end of the bottom of the force-bearing rod 20 is inclined. The arc-shaped driving plate 23 squeezes the inclined surface of the bottom of the force-bearing rod 20 to lift the force-bearing rod 20. When the arc-shaped driving plate 23 passes over the force-bearing rod 20, the force-bearing rod 20 will slide down and reset under the gravity of the counterweight block 21.

[0041] like Figures 8 to 9 As shown, a limit rod 24 is fixedly installed on the inner wall of the positioning frame 14, and a limit plate 25 is fixedly installed on the outer wall of the circular plate 17. The inner wall of the limit plate 25 is slidably connected to the outer wall of the limit rod 24; through the cooperation of the limit rod 24 and the limit plate 25, it is ensured that the slide rod 15 can slide while being limited, preventing the force-bearing rod 20 from rotating when negotiating with the arc-shaped driving plate 23.

[0042] like Figures 1 to 3 and Fig.10 As shown, a support seat 26 is fixedly installed on the top of the positioning mold 2, and a flip plate 27 is rotatably installed on the inner wall of the support seat 26. An arc-shaped elastic telescopic rod B28 is fixedly installed between the flip plate 27 and the support seat 26. A pressing plate 29 is fixedly installed on the outer wall of the flip plate 27, and a pressing roller 30 is rotatably installed on the inner wall of the pressing plate 29. The pressing roller 30 is located above the sliding mold 4, and an extrusion component is arranged on one side of the flip plate 27; during demoulding, when the sliding mold 2 is separated from the positioning mold 4, the extrusion component will squeeze the flip plate 27. After the flip plate 27 is squeezed, the side connected to the pressing plate 29 will flip downward, so that the pressing plate 29 moves downward, and the pressing plate 29 will drive the pressing roller 30 to move downward. When the pressing plate 29 moves downward, it will drive the pressing roller 30 to move downward. When the pressing roller 30 moves downward, it will squeeze the formed pipe and extrude the pipe from the inner side of the positioning mold 2, thereby achieving the effect of automatic demoulding. After the demoulding is completed, the extrusion component will move away from the flip plate 27, and at this time, the flip plate 27 will be reset under the action of the arc-shaped elastic telescopic rod B28.

[0043] like Fig.10 As shown, the extrusion assembly includes a connecting frame 31, the outer wall of the connecting frame 31 is fixedly connected to the outer wall of the sliding mold 4, and a resist plate 32 is fixedly installed on the outer wall of the connecting frame 31 at one end away from the sliding mold 4; when demolding, the toggle plate 10 rotates the sliding mold 4 and separates it from the positioning mold 2 through the force block 11, and when the sliding mold 4 rotates, the resist plate 32 is driven to move through the connecting frame 31. When the sliding mold 4 is separated from the positioning mold 2, the resist plate 32 moves to the flip plate 27 and contacts it. Then, as the sliding mold 4 continues to rotate, the resist plate 32 begins to squeeze the flip plate 27 to flip it, thereby performing automatic demolding.

[0044] like Figure 1 and Figure 4 As shown, a material box 33 is arranged below the workbench 1, a conveying pipe 34 is connected between the material box 33 and the positioning mold 2, a plurality of support columns 35 are fixedly installed between the top of the material box 33 and the bottom of the workbench 1, and a plurality of support legs 36 are fixedly installed at the bottom of the workbench 1; when performing manufacturing work, the sliding mold 4 is kept in contact with the positioning mold 2, and the aluminum liquid in the material box 33 is conveyed to the inner side of the mold through the conveying pipe 34, so as to perform casting work. The present invention can perform casting work of multiple pipelines at the same time, effectively improving the production efficiency of the device.

[0045] like Figure 11 to Figure 12 As shown, a slip ring 37 is slidably installed on the outer wall of the support leg 36, and a lifting plate 38 is slidably installed on the inner wall of the support leg 36. The outer wall of the lifting plate 38 is fixedly connected to the inner wall of the slip ring 37, and an automatic telescopic rod 39 is fixedly installed between the top of the lifting plate 38 and the inner wall of the support leg 36. A support plate 40 is fixedly installed on the outer wall of the slip ring 37, and a positioning ring 41 is fixedly installed on the top of the support plate 40. Several positioning rings 41 are respectively located below several positioning molds 2; the support plate 40 and the positioning ring 41 are located below the positioning mold 2. When demolding, the pipeline will slide from the inside of the positioning mold 2 to the inner side of the positioning ring 41 and be supported by the support plate 40. Then the automatic telescopic rod 39 will extend to push the lifting plate 38 downward. When the lifting plate 38 moves downward, it will drive the slip ring 37 downward. When the slip ring 37 moves downward, it will move the support plate 40 downward, thereby driving the formed pipeline to move downward, achieving the effect of automatic unloading.

[0046] Working principle: the mold is composed of a positioning mold 2, a sliding mold 4 and a core shaft 5. The core shaft 5 is fixed to the positioning mold 2. When the casting work is carried out, the positioning mold 2 and the sliding mold 4 are kept in a fitting state, and the aluminum liquid in the material box 33 is transported to the inner side of the mold through the conveying pipe 34, so as to carry out the casting work. The present invention can carry out the casting work of multiple pipes at the same time, and effectively improve the production efficiency of the device. The positioning mold 2 is fixedly connected to the workbench 1, and the sliding mold 4 is slidably connected to the workbench 1. When the casting work is completed, the driving component is started. When the driving component works, it will drive the sliding mold 4 to slide, so that the sliding mold 4 and the positioning mold 2 are separated. After the sliding mold 4 leaves the positioning mold 2, the bottom of the positioning mold 2 will be in an open state. At this time, the cast pipe can be taken out through the bottom of the positioning mold 2, so as to achieve the effect of facilitating demoulding. When the sliding mold 4 leaves the positioning mold 2, the arc-shaped elastic telescopic rod A3 will be squeezed by the sliding mold 4 and shrink. After the demoulding is completed After working, the sliding mold 4 will be reset under the action of the reverse elastic force of the arc-shaped elastic telescopic rod A3, and fit with the positioning mold 2 again. When the demoulding work is performed, the driving motor 6 is started, and the driving motor 6 drives the turntable 7 to rotate forward. When the turntable 7 rotates, it will drive the outer frame 8 to rotate. When the outer frame 8 rotates, it will drive the toggle plate 10 to rotate through the torsion spring shaft 9. When the toggle plate 10 rotates, it will squeeze the force block 11. After the force block 11 is squeezed, it will drive the sliding mold 4 to follow the rotation, so that the sliding mold 4 is separated from the positioning mold 2, thereby achieving the effect of facilitating demoulding. When rotating forward, the toggle plate 10 is restricted by the outer frame 8 and will not rotate around the torsion spring shaft 9, thereby achieving the effect of pushing the force block 11 to move. When reversing, the outer frame 8 cannot restrict the toggle plate 10. At this time, when the toggle plate 10 is obstructed, the toggle plate 10 will rotate around the torsion spring shaft 9. When the obstruction is removed, the toggle plate 10 will be reset under the action of the torsion spring shaft 9, providing conditions for the reversal of the driving motor 6.

[0047] When the driving motor 6 drives the turntable 7 to reverse, the turntable 7 will drive the pulling component to rotate. When the pulling component rotates, it will pull the sliding rod 15 to move on the inner side of the positioning frame 14 in the direction away from the positioning mold 2 and the sliding mold 4. At this time, the elastic member 18 is in a contracted state. As the turntable 7 rotates, the sliding rod 15 is no longer subjected to the pulling force, and the reverse elastic force generated by the contraction of the elastic member 18 will be released, thereby causing the sliding rod 15 to slide in the opposite direction. When the sliding rod 15 slides in the opposite direction, the rubber head 16 will knock the positioning mold 2 and the sliding mold 4, and then the driving motor 6 will rotate forward again and then reverse again to achieve reciprocating knocking. When the rubber head 16 is knocking, the elastic force of the elastic member 18 can be used to achieve multiple knocks until the elastic force disappears, causing the positioning mold 2 and the sliding mold 4 to vibrate. When the aluminum liquid is injected into the mold, the density of the material can be further improved by vibration, and the strength and durability of the pipeline can be enhanced. After the pipeline is formed, the adhesion between the pipeline and the mold can be eliminated by vibration, thereby preventing the pipeline from being strained during demolding, thereby improving the device. Demolding effect, when the driving motor 6 drives the turntable 7 to reverse, the driving motor 6 will drive the arc driving plate 23 to rotate through the bracket 22. When the arc driving plate 23 rotates, the force rod 20 will pass through the arc groove inside the arc driving plate 23. Through the setting of the arc groove, the force rod 20 will be pulled during the rotation of the arc driving plate 23, and the force rod 20 will pull the sliding rod 15 to move away from the positioning mold 2 and the sliding mold 4. As the arc driving plate 23 rotates, the force rod 20 will pass through the arc groove. When the force-bearing rod 20 leaves the arc groove, the force-bearing rod 20 is no longer restricted, and the elastic force of the elastic member 18 is released, thereby realizing the knocking work. When the driving motor 6 drives the turntable 7 to rotate forward, the arc driving plate 23 will squeeze one end of the force-bearing rod 20, and the bottom end of the force-bearing rod 20 is inclined. The arc driving plate 23 squeezes the inclined surface of the bottom of the force-bearing rod 20 to make the force-bearing rod 20 rise. When the arc driving plate 23 passes over the force-bearing rod 20, the force-bearing rod 20 will slide down and reset under the gravity of the counterweight block 21.

[0048] During demoulding, after the sliding mold 2 is separated from the positioning mold 4, the extrusion assembly will extrude the flip plate 27. After the flip plate 27 is squeezed, the side connected to the pressure plate 29 will flip downward, so that the pressure plate 29 moves downward. When the pressure plate 29 moves downward, it will drive the pressure roller 30 to move downward. When the pressure roller 30 moves downward, it will squeeze the formed pipe and extrude the pipe from the inner side of the positioning mold 2, so as to achieve the effect of automatic demoulding. After the demoulding is completed, the extrusion assembly will move away from the flip plate 27. At this time, the flip plate 27 will be reset under the action of the arc-shaped elastic telescopic rod B28. During demoulding, the toggle plate 10 rotates the sliding mold 4 and separates it from the positioning mold 2 through the force block 11. When the sliding mold 4 rotates, it will pass through the connecting frame 3 1 drives the push plate 32 to move. When the sliding mold 4 and the positioning mold 2 are separated, the push plate 32 moves to the flip plate 27 and contacts it. Then, as the sliding mold 4 continues to rotate, the push plate 32 begins to squeeze the flip plate 27 to flip it, thereby performing automatic demoulding. The support plate 40 and the positioning ring 41 are located below the positioning mold 2. During demoulding, the pipeline will slide from the inside of the positioning mold 2 to the inside of the positioning ring 41 and be supported by the support plate 40. Then, the automatic telescopic rod 39 will extend and push the lifting plate 38 to move downward. When the lifting plate 38 moves downward, it will drive the sliding ring 37 to move downward. When the sliding ring 37 moves downward, it will cause the support plate 40 to move downward, thereby driving the formed pipeline to move downward, achieving the effect of automatic unloading.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A low-pressure casting device for an aluminum alloy pipe, comprising a workbench (1), characterized in that: The invention also comprises a plurality of mould assemblies, wherein the mould assemblies comprise a positioning mould (2), wherein the positioning mould (2) is fixedly mounted on the inner wall of a workbench (1), wherein a plurality of arc-shaped elastic telescopic rods A (3) are fixedly mounted on the inner wall of the workbench (1), wherein a plurality of sliding moulds (4) are slidably mounted on the inner wall of the workbench (1), wherein the outer walls of the plurality of sliding moulds (4) are respectively fixedly connected to one end of the plurality of arc-shaped elastic telescopic rods A (3), wherein the outer walls of the plurality of sliding moulds (4) are respectively fitted to the outer walls of the plurality of positioning moulds (2), wherein a core shaft (5) is fixedly mounted on the inner wall of the positioning mould (2), and a driving assembly is arranged between the plurality of sliding moulds (4).

2. The low-pressure casting device for an aluminum alloy pipe according to claim 1, characterized in that: The driving assembly comprises a driving motor (6) fixedly mounted on the bottom of the workbench (1); the output shaft of the driving motor (6) passes through the workbench (1) and is fixedly mounted with a turntable (7); the outer wall of the turntable (7) is rotatably connected to the inner wall of the workbench (1); a plurality of outer frames (8) are fixedly mounted on the outer wall of the turntable (7); a torsion spring shaft (9) is fixedly mounted on the inner wall of the outer frame (8); a toggle plate (10) is fixedly mounted on the outer wall of the torsion spring shaft (9) and located on the inner side of the outer frame (8); and a force block (11) is fixedly mounted on the outer wall of the sliding mold (4).

3. The low-pressure casting device for an aluminum alloy pipe according to claim 2, characterized in that: A guide rail (12) is fixedly mounted on the top of the workbench (1), a sliding block (13) is fixedly mounted on the outer wall of the sliding mold (4), and the outer wall of the sliding block (13) is slidably connected to the inner wall of the guide rail (12).

4. The low-pressure casting device for an aluminum alloy pipe according to claim 3, characterized in that: The outer walls of the positioning mold (2) and the sliding mold (4) are both fixedly mounted with a positioning frame (14), the inner wall of the positioning frame (14) is slidably mounted with a sliding rod (15), one end of the sliding rod (15) is fixedly mounted with a rubber head (16), the outer walls of a plurality of the rubber heads (16) respectively contact the outer walls of the positioning mold (2) and the sliding mold (4), a circular plate (17) is fixedly mounted on the outer wall of the sliding rod (15), an elastic member (18) is fixedly mounted between the circular plate (17) and the positioning frame (14) and on the outer side of the sliding rod (15), and a pulling component is provided at one end of the sliding rod (15) away from the rubber head (16).

5. The low-pressure casting device for an aluminum alloy pipe according to claim 4, characterized in that: The pulling assembly comprises a circular ring (19) fixedly connected to the sliding rod (15); a force-bearing rod (20) is slidably mounted on the inner wall of the circular ring (19); a counterweight (21) is fixedly mounted on one end of the force-bearing rod (20); the counterweight (21) is overlapped on the top of the circular ring (19); a plurality of brackets (22) are fixedly mounted on the top of the turntable (7); and an arc-shaped driving plate (23) is fixedly mounted on the outer wall of the bracket (22).

6. The low-pressure casting device for an aluminum alloy pipe according to claim 5, characterized in that: A limiting rod (24) is fixedly mounted on the inner wall of the positioning frame (14), a limiting plate (25) is fixedly mounted on the outer wall of the circular plate (17), and the inner wall of the limiting plate (25) is slidably connected to the outer wall of the limiting rod (24).

7. The low-pressure casting device for an aluminum alloy pipe according to claim 6, characterized in that: A support seat (26) is fixedly mounted on the top of the positioning mold (2), a flip plate (27) is rotatably mounted on the inner wall of the support seat (26), an arc-shaped elastic telescopic rod B (28) is fixedly mounted between the flip plate (27) and the support seat (26), a pressing plate (29) is fixedly mounted on the outer wall of the flip plate (27), a pressing roller (30) is rotatably mounted on the inner wall of the pressing plate (29), and the pressing roller (30) is located above the sliding mold (4), and an extrusion component is arranged on one side of the flip plate (27).

8. The low-pressure casting device for an aluminum alloy pipe according to claim 7, characterized in that: The extrusion assembly comprises a connecting frame (31), the outer wall of the connecting frame (31) being fixedly connected to the outer wall of the sliding die (4), and a stop plate (32) being fixedly mounted on the outer wall of one end of the connecting frame (31) away from the sliding die (4).

9. The low-pressure casting device for an aluminum alloy pipe according to claim 8, characterized in that: A material box (33) is provided below the workbench (1); a conveying pipe (34) is connected between the material box (33) and the positioning mold (2); a plurality of support columns (35) are fixedly installed between the top of the material box (33) and the bottom of the workbench (1); and a plurality of support legs (36) are fixedly installed at the bottom of the workbench (1).

10. The low-pressure casting device for an aluminum alloy pipe according to claim 9, characterized in that: A slip ring (37) is slidably mounted on the outer wall of the support leg (36), a lifting plate (38) is slidably mounted on the inner wall of the support leg (36), the outer wall of the lifting plate (38) is fixedly connected to the inner wall of the slip ring (37), an automatic telescopic rod (39) is fixedly mounted between the top of the lifting plate (38) and the inner wall of the support leg (36), a support plate (40) is fixedly mounted on the outer wall of the slip ring (37), a positioning ring (41) is fixedly mounted on the top of the support plate (40), and a plurality of the positioning rings (41) are respectively located below a plurality of positioning molds (2).

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