Low-pressure casting pouring system for large-scale long-lead aluminum alloy column body

Abstract

The low-pressure casting and pouring system comprises a base, a sliding table, a lower die, a first rack, a second rack and an upper die, the sliding table is fixedly connected to the upper surface of the base in the left-right direction, the bottom of the lower die is fixedly connected with the top of the sliding table, and the lower die moves left and right through the sliding table; the first machine frame and the second machine frame are fixedly connected to the left end and the right end of the upper surface of the base correspondingly, the number of the first hydraulic oil cylinders is two, and the two first hydraulic oil cylinders are fixedly connected to the left end and the right end of the upper surface of the first machine frame correspondingly; the output end of the first hydraulic cylinder is fixedly connected with the top of the upper die. Alternating vibration of the lower die is achieved, the liquidity of molten aluminum can be improved, discharging of bubbles in a die cavity of the lower die can be enhanced, the quality of a formed aluminum bar is guaranteed, time and labor are saved during single grabbing and discharging of the aluminum bar, and the casting efficiency of the aluminum bar is improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to a low-pressure casting pouring system for a large-scale long-lead aluminum alloy column. Background Art

[0002] Casting aluminum alloy is to fill the mold with molten metal and cool it to form an aluminum alloy column. Aluminum alloy columns play an important role in the fields of architecture and engineering. Their applications are not limited to decoration and beauty, but also include structural support and functional applications.

[0003] During the pouring process, due to the relatively low specific heat capacity of molten aluminum, the rapid cooling rate and the large mold depth, the aluminum liquid has poor fluidity, the bubbles in the mold cavity are not easy to discharge, and the casting quality of the aluminum rod is poor. Moreover, after molding, the aluminum rod cannot be removed at one time. The unloading of the aluminum rod is time-consuming and labor-intensive, resulting in low aluminum rod casting effect. Summary of the invention

[0004] The purpose of the present invention is to provide a low-pressure casting pouring system for large-scale long-lead aluminum alloy columns, so as to at least solve the problems of poor casting fluidity of aluminum liquid and time-consuming and labor-intensive aluminum rod unloading in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-pressure casting pouring system for a large-scale long-lead aluminum alloy column, comprising a base, a slide, a lower mold, a first frame, a second frame and an upper mold, wherein the slide is fixedly connected to the upper surface of the base along the left and right directions, the bottom of the lower mold is fixedly connected to the top of the slide, and the lower mold is moved left and right through the slide, the first frame and the second frame are respectively fixedly connected to the left and right ends of the upper surface of the base, and also comprises a first hydraulic cylinder, a second hydraulic cylinder, a guide rod, a vibration mechanism and a grasping mechanism, the number of the first hydraulic cylinders is two, which are respectively fixedly connected to the left and right ends of the upper surface of the first frame, and the output end of the first hydraulic cylinder is fixedly connected to the top of the upper mold; the number of the second hydraulic cylinders is two, which are respectively fixedly connected to the left and right ends of the upper surface of the second frame; the number of the guide rods is four, which are respectively vertically installed at the four corners of the lower surface of the upper mold, and the guide rods can be inserted into the inner cavity of the lower mold to improve the mold closing stability of the upper mold and the lower mold; the vibration mechanism is fixedly connected to the left side wall of the lower mold; the grasping mechanism is fixedly connected to the output end of the second hydraulic cylinder.

[0006] Preferably, the purpose is to impact the lower mold, causing the lower mold to vibrate and improve the fluidity of the aluminum liquid. The vibration mechanism includes a first box, a knocking assembly, a motor, a rotating rod and a roller. The first box is fixedly connected to the left side wall of the lower mold; the knocking assembly is laterally fixedly connected to the left inner wall of the first box; the motor is installed on the front of the first box; the rotating rod is installed at the output end of the motor; there are two rollers, which are respectively connected to the two ends of the rear side of the rotating rod through a pin shaft.

[0007] Preferably, the rotating rod is divided at the motor output end, and the two parts of the rotating rod are of different lengths.

[0008] Preferably, the knocking assembly includes a limit rod, a knocking rod, a spring and a stop rod, the limit rod is laterally fixedly connected to the top of the left inner wall of the first box body, and the limit rod is rectangular in shape; the knocking rod is slidably sleeved on the outer wall of the limit rod; the spring is inserted into the inner cavity of the knocking rod, and pushes the knocking rod to the right under the action of the spring elastic force; the stop rod is vertically installed at the bottom of the knocking rod.

[0009] Preferably, the blocking rod and the roller are in the same plane.

[0010] Preferably, the purpose is to allow the clamping plate to move inward synchronously, realize one-time grabbing of the aluminum plate rod in the lower mold, and improve the material unloading efficiency. The grabbing mechanism includes a second box body, a third hydraulic cylinder, a push plate rack and a clamping assembly. The second box body is fixedly connected to the output end of the second hydraulic cylinder; the third hydraulic cylinder is horizontally installed at the center position of the right side wall of the second box body; the push plate is installed at the output end of the third hydraulic cylinder along the front and rear direction; the number of racks is several, and they are equidistantly installed on the left side wall of the push plate from front to back; the number of clamping assemblies is several, and they are evenly installed on the lower surface of the second box body.

[0011] Preferably, the clamping assembly includes a base, a rotating shaft, a gear, a turntable, a guide groove, a slide, a slider, a guide column and a splint, and the base is fixedly connected to the lower surface of the second box body; the rotating shaft is installed at the top center position of the base so as to be able to rotate around its own axis through a bearing; the gear and the turntable are respectively installed at the upper and lower ends of the outer wall of the rotating shaft, and the gear is meshed with the rack, and when the third hydraulic cylinder drives the push plate to move left and right, the rack and gear transmission can make the rotating shaft rotate counterclockwise or clockwise; the number of guide grooves is three, which are equidistantly arranged on the upper surface of the turntable along the circumference; the number of slides is three, which are equidistantly arranged on the lower surface of the base along the circumference; the slider is slidably connected to the inner cavity of the slide; one end of the guide column is installed on the outer side of the top of the slider, and the other end is inserted into the inner cavity of the guide groove; the splint is vertically installed at the bottom of the slider.

[0012] Preferably, the guide grooves are obliquely distributed on the surface of the turntable.

[0013] The low-pressure casting pouring system for a large-scale long-lead aluminum alloy column proposed by the present invention has the following beneficial effects:

[0014] 1. The present invention drives the rotating rod to drive the roller to do counterclockwise circular motion through a motor. Since the diameters of the two roller motion trajectories are different, the moving distances of the push lever are also different, the spring is compressed to different degrees, and the knocking rod knocks the lower die to change, thereby realizing alternating vibration of the lower die, which can not only improve the fluidity of aluminum liquid, but also strengthen the discharge of bubbles in the lower die cavity, thereby ensuring the quality of the formed aluminum rod;

[0015] 2. The present invention drives the left movement through the third hydraulic cylinder. The turntable rotates counterclockwise under the transmission of the rack and gear. The guide groove squeezes the guide column inward, allowing the three slides to move inward synchronously. The clamping plate clamps the aluminum rod, achieving a single grabbing of the aluminum rod, saving time and effort in unloading, and improving the efficiency of aluminum rod casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the vibration mechanism of the present invention;

[0018] Figure 3 It is a front cross-sectional view of the vibration mechanism of the present invention;

[0019] Figure 4 It is a top view cross-sectional view of the grabbing mechanism of the present invention;

[0020] Figure 5 It is a front cross-sectional view of the clamping assembly of the present invention;

[0021] Figure 6 A bottom view of the clamping assembly of the present invention;

[0022] Figure 7 It is a top view of the turntable of the present invention.

[0023] In the figure: 1, base; 2, slide; 3, lower mold; 4, first frame; 5, second frame; 6, upper mold; 7, vibration mechanism; 8, grabbing mechanism; 9, first hydraulic cylinder; 10, guide rod; 11, second hydraulic cylinder; 71, first box; 72, knocking assembly; 73, motor; 74, rotating rod; 75, roller; 721, limit rod; 722, knocking rod; 723, spring; 724, stop rod; 81, second box; 82, third hydraulic cylinder; 83, push plate; 84, rack; 85, clamping assembly; 851, base; 852, rotating shaft; 853, gear; 854, turntable; 855, guide groove; 856, slideway; 857, slider; 858, guide column; 859, splint. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-7The present invention provides a technical solution: a low-pressure casting pouring system for a large-scale long-lead aluminum alloy column, comprising a base 1, a slide 2, a lower mold 3, a first frame 4, a second frame 5 and an upper mold 6, the slide 2 is laterally fixedly connected to the upper surface of the base 1, the lower mold 3 is installed on the top of the slide 2 so as to be movable left and right, the first frame 4 and the second frame 5 are respectively fixedly connected to the left and right ends of the upper surface of the base 1, the left and right ends of the upper surface of the first frame 4 are both installed with a first hydraulic cylinder 9, the output end of the first hydraulic cylinder 9 is connected to the top of the upper mold 6, the four corners of the lower surface of the upper mold 6 are all installed with guide rods 10, the guide rods 10 are inserted into the lower mold 3, and the mold closing stability between the upper mold 6 and the lower mold 3 is improved, the left side wall of the lower mold 3 is fixedly connected with a vibration mechanism 7, the left and right ends of the upper surface of the second frame 5 are both installed with a second hydraulic cylinder 11, and the output end of the second hydraulic cylinder 11 is installed with a grabbing mechanism 8.

[0026] As a preferred embodiment, further, the vibration assembly 7 includes a first box body 71 fixedly connected to the left side wall of the lower mold 3, a knocking assembly 72 is laterally fixedly connected to the top of the left inner wall of the first box body 71, a motor 73 is installed on the front of the first box body 71, the output end of the motor 73 is installed on the rotating rod 74, and the two ends of the rear side of the rotating rod 74 are connected to rollers 75 through pins. The rotating rod 74 is cut with the output end of the motor 73 as the center, and the two parts of the rotating rod 74 are of different lengths. When the motor 73 drives the rotating rod 74 to rotate, the displacement generated by pushing the knocking assembly 72 is different.

[0027] As a preferred embodiment, further, the knocking assembly 72 includes a limiting rod 721 which is laterally fixedly connected to the top of the left inner wall of the first box body 71. The limiting rod 721 is rectangular in shape. A knocking rod 722 which can slide left and right is sleeved on the outer wall of the limiting rod 721. The shape of the limiting rod 721 limits the knocking rod 722 from rotating. A spring 723 is inserted into the inner cavity of the knocking rod 722. Under the action of the elastic force of the spring 723, the knocking rod 722 is pushed to move right to knock the lower mold 3, causing the lower mold 3 to vibrate. A blocking rod 724 is vertically installed at the bottom of the knocking rod 722. The blocking rod 724 and the roller 75 are in the same plane. When the rotating rod 74 rotates counterclockwise, the roller 75 can push the blocking rod 724 to move left.

[0028] As a preferred solution, further, the grabbing mechanism 8 includes a second box body 81 fixedly connected to the output end of the second hydraulic cylinder 11, a third hydraulic cylinder 82 is horizontally installed at the center position of the right side wall of the second box body 81, a push plate 83 is installed at the output end of the third hydraulic cylinder 82, and a plurality of racks 84 are equidistantly installed on the left side wall of the push plate 83 from front to back, and a plurality of clamping components 85 are evenly fixedly connected to the lower surface of the second box body 81.

[0029] As a preferred solution, further, the clamping assembly 85 includes a base 851 fixedly connected to the lower surface of the second box body 81, and a rotating shaft 852 that can rotate around its own axis is installed at the top center position of the base 851 through a bearing. Gears 853 and turntable 854 are installed at the upper and lower ends of the outer wall of the rotating shaft 852, and the gear 853 is meshed and connected with the rack 84. When the third hydraulic cylinder 82 drives the push plate 83 to move left and right, the rotating shaft 852 can be rotated counterclockwise or clockwise through the gear 853 and the rack 84. Three guide grooves 855 are equidistantly opened on the upper surface of the turntable 854 along the circumferential direction. Three slideways 856 are equidistantly arranged in the circumferential direction, and a slider 857 is slidably connected to the inner cavity of the slideway 856. The slider 857 is in an I-shape to improve the movement stability of the slider 857. A guide column 858 is installed on the top of the slider 857 and is plugged into the inner cavity of the guide groove 855. The guide groove 855 is obliquely distributed on the upper surface of the turntable 854. When the turntable 854 rotates counterclockwise or clockwise, the inclined surface of the guide groove 855 can squeeze the guide column 858 inward or outward, thereby realizing the synchronous inward or outward movement of the three sliders 857. A clamping plate 859 is vertically installed at the bottom of the slider 859. The clamping plate 859 is arc-shaped, and the aluminum rod is clamped by the clamping plate 859.

[0030] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0031] Step 1: The upper mold 6 is driven down by the first hydraulic cylinder 9, and the upper mold 6 and the lower mold 3 are closed under the limit of the guide rod 10, and the aluminum liquid is injected from the pouring port of the upper mold 6 to fill the mold cavities of the lower mold 3 and the upper mold 6. After cooling, a cast aluminum rod can be obtained;

[0032] Step 2: During the pouring process, the motor 73 drives the rotating rod 74 to rotate counterclockwise, so that the two rollers 75 make circular motion. Since the diameters of the circular tracks of the two rollers 75 are different, the distances by which the two rollers 75 push the blocking rod 724 to the left are different. Therefore, under the elastic force of the spring 723, the knocking strokes of the knocking rod 722 are different, and the knocking force on the lower mold 3 is in an alternating state, causing the lower mold 3 to vibrate, improving the fluidity of the aluminum liquid, and facilitating the discharge of bubbles in the mold cavity of the lower mold 3.

[0033] Step three, after the aluminum rod is formed, the lower mold 3 is moved to the bottom of the grabbing mechanism 8 through the slide 2, and the second box 81 is driven down by the second hydraulic cylinder 11 until the clamping plate 859 is close to the aluminum rod, and the third hydraulic cylinder 82 pushes the push plate 83 to move left. Due to the transmission of the rack 84 and the gear 853, the turntable 854 rotates counterclockwise, and the guide groove 855 is inclined to squeeze the guide column 858 inward, so that the three sliders 857 move inward synchronously, and the clamping plate 859 clamps the aluminum rod. The aluminum rod is raised by the second hydraulic cylinder 11 and taken out of the lower mold 3 to realize one-time unloading of the aluminum rod.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-pressure casting pouring system for a large-scale long-lead aluminum alloy column, comprising a base (1), a slide (2), a lower mold (3), a first frame (5), a second frame (6) and an upper mold (6), wherein the slide (2) is fixedly connected to the upper surface of the base (1) along the left-right direction, the bottom of the lower mold (3) is fixedly connected to the top of the slide (2), and the lower mold (3) is moved left and right through the slide (2), and the first frame (5) and the second frame (6) are respectively fixedly connected to the left and right ends of the upper surface of the base (1), characterized in that: Also includes: Two first hydraulic cylinders (9) are fixedly connected to the left and right ends of the upper surface of the first frame (4), respectively, and the output end of the first hydraulic cylinder (9) is fixedly connected to the top of the upper mold (6); Two second hydraulic cylinders (11) are fixedly connected to the left and right ends of the upper surface of the second frame (5); There are four guide rods (10) which are respectively installed vertically at the four corners of the lower surface of the upper mold (6), and the guide rods (10) can be inserted into the inner cavity of the lower mold (3) to improve the mold closing stability of the upper mold (6) and the lower mold (3); A vibration mechanism (7) fixedly connected to the left side wall of the lower mold (3); The grabbing mechanism (8) is fixedly connected to the output end of the second hydraulic cylinder (11).

2. A low-pressure casting pouring system for a large-scale long-lead aluminum alloy column according to claim 1, characterized in that: The vibration mechanism (7) comprises: A first box body (71) is fixedly connected to the left side wall of the lower mold (3); A knocking assembly (72) is transversely fixedly connected to the left inner wall of the first box body (71); A motor (73) is mounted on the front side of the first box (71); A rotating rod (74) mounted on the output end of the motor (73); There are two rollers (75) connected to the two ends of the rear side of the rotating rod (74) through pins.

3. A low-pressure casting pouring system for a large-scale long-lead aluminum alloy column according to claim 2, characterized in that: The rotating rod (74) is divided at the output end of the motor (73), and the two parts of the rotating rod (74) are different in length.

4. A low pressure casting pouring system for a large long lead aluminum alloy column according to claim 2, characterized in that: The striking assembly (72) comprises: A limiting rod (721) is transversely fixedly connected to the top of the left inner wall of the first box body (71), and the limiting rod (721) is rectangular in shape; A knocking rod (722) is sleeved on the outer wall of the limiting rod (721) so as to be slidable left and right; A spring (723) is inserted into the inner cavity of the knocking rod (722) and pushes the knocking rod (722) to move rightward under the elastic force of the spring (723); The blocking rod (724) is vertically mounted on the bottom of the knocking rod (722).

5. A low pressure casting pouring system for a large long lead aluminum alloy column according to claim 4, characterized in that: The blocking rod (724) and the roller (75) are in the same plane.

6. The low-pressure casting pouring system for a large-scale long-lead aluminum alloy column according to claim 1, characterized in that: The grabbing mechanism (8) comprises: A second box (81) is fixedly connected to the output end of the second hydraulic cylinder (9); A third hydraulic cylinder (82) is installed transversely at the center of the right side wall of the second box body (81); A push plate (83) is installed at the output end of the third hydraulic cylinder (82) along the front-rear direction; A plurality of racks (84) are installed on the left side wall of the push plate (83) at equal distances from front to back; There are a plurality of clamping assemblies (85) uniformly mounted on the lower surface of the second box body (81).

7. A low pressure casting pouring system for a large long lead aluminum alloy column according to claim 6, characterized in that: The clamping assembly (85) comprises: A base (851) fixedly connected to the lower surface of the second box (81); A rotating shaft (852) is installed at the top center of the base (851) via a bearing so as to be rotatable around its own axis; The gear (853) and the rotating disk (854) are respectively mounted on the upper and lower ends of the outer wall of the rotating shaft (852), and the gear (853) is meshedly connected with the rack (84). When the third hydraulic cylinder (82) drives the push plate (83) to move left and right, the transmission of the rack (84) and the gear (853) can make the rotating shaft (852) rotate counterclockwise or clockwise. Three guide grooves (855) are provided on the upper surface of the rotating disk (854) at equal intervals along the circumferential direction; Three slideways (856) are arranged equidistantly along the circumferential direction on the lower surface of the base (81); A slider (857) slidably connected to the inner cavity of the slideway (856); A guide post (858), one end of which is mounted on the outer side of the top of the slider (857) and the other end of which is inserted into the inner cavity of the guide groove (855); The clamping plate (859) is vertically mounted on the bottom of the sliding block (857).

8. A low pressure casting pouring system for a large long lead aluminum alloy column according to claim 7, characterized in that: The guide grooves (855) are obliquely distributed on the surface of the turntable (854).

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