A casting device for chemical pump casting production

Abstract

The application relates to the field of pump casting, and discloses a casting device for chemical pump casting production, which comprises a first supporting base, a supporting rod fixedly installed at the bottom of the first supporting base, a second supporting base fixedly installed at the bottom of the supporting rod, a lower mold fixedly installed at the top center of the second supporting base, a clamping rod fixedly installed outside the lower mold, a threaded rod fixedly installed at the center of the first supporting base, a fixed ball fixedly installed at the bottom of the threaded rod, a rotating ball rod movably installed in the fixed ball, an upper mold arranged at the bottom of the rotating ball rod, a power device arranged on the upper mold, and a limiting device arranged in a circular array on the upper mold; the fixed ball and the rotating ball rod prevent the upper mold from excessively extruding the installed sand in the lower mold when the upper mold is combined with the lower mold, and prevent the lower mold and the upper mold from being deformed after long-time use, so that the combination of the molds is not complete or the molds are inclined.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pump casting, more particularly, it relates to a casting device for chemical pump casting production. BACKGROUND

[0002] Chemical pumps are core equipment for transporting corrosive, toxic or high-temperature chemical fluids, and their reliability directly depends on the manufacturing quality of the pump body, a key component. These pump bodies are usually made of corrosion-resistant materials such as stainless steel through precision casting processes. The casting device uses a mold to form, and after melting, pouring and cooling, a pump body blank is obtained, which can ensure the sealing and durability of the chemical pump under harsh working conditions after precision machining.

[0003] A patent application with publication number CN216461692U discloses a pump shell casting equipment, which includes a bearing platform, a support frame installed on the bearing platform, a mold for casting the pump shell installed on the support frame in a flip manner, a hammering structure including a vertical rod, a pendulum rod, a knocking hammer and an electric hydraulic push rod, the vertical rod being fixedly arranged on the bearing platform, the middle part of the pendulum rod being hingedly connected to the vertical rod, the knocking hammer being connected to the upper end of the pendulum rod and arranged opposite to the lower end of the mold, the electric hydraulic push rod being hingedly connected to the lower end of the pendulum rod and pushing and pulling the lower end of the pendulum rod to make the knocking hammer at the upper end of the pendulum rod strike the outside of the mold, a cooling metal pipe installed on the outside of the mold, and a cold air machine detachably connected to the cooling metal pipe through a gas conveying hose. The problem of slow cooling speed and low production efficiency of the traditional casting device for casting the centrifugal pump shell is solved.

[0004] The above-mentioned device can improve the cooling of the shell after pouring during use, but the sand mold placed inside may tilt when the upper mold and the lower mold are closed, and since the upper mold is vertically lowered, it cannot be discovered in the first time when obstruction or extrusion occurs, causing the internal sand to be extruded and damaged, and when the upper mold falls, the sand outside the sand mold may fall off, affecting the effect of shell casting. SUMMARY

[0005] The present application provides a casting device for chemical pump casting production, which solves the technical problem that in the related art, the sand mold placed inside may tilt when the upper mold and the lower mold are closed, and since the upper mold is vertically lowered, it cannot be discovered in the first time when obstruction or extrusion occurs, causing the internal sand to be extruded and damaged, and when the upper mold falls, the sand outside the sand mold may fall off, affecting the effect of shell casting.

[0006] The application provides a casting device for chemical pump casting production, which comprises a first supporting seat, a plurality of supporting rods are fixedly arranged on the bottom of the first supporting seat, a second supporting seat is fixedly arranged on the bottom of the supporting rods, a lower mold is fixedly arranged at the top center of the second supporting seat, a plurality of clamping rods are fixedly arranged on the outside of the lower mold, a threaded rod is fixedly arranged at the center of the first supporting seat, a fixed ball is fixedly arranged at the bottom of the threaded rod, a rotating ball rod is movably arranged in the fixed ball, an upper mold is arranged at the bottom of the rotating ball rod, a pouring opening is fixedly arranged on the upper mold, a power device is arranged on the upper mold, a plurality of limiting devices are circumferentially arranged on the upper mold, and the power device is used for driving the limiting devices to clamp and lift the lower mold.

[0007] The power device comprises a rotating plate, a limiting sliding groove, a moving block, a first protrusion, a fixed seat, and a moving triangular plate, the rotating plate is rotatably arranged on the upper mold, a plurality of first protrusions are circumferentially arranged on the outside of the rotating plate, a plurality of moving blocks are circumferentially arranged on the upper mold in a sliding mode, a limiting sliding groove is arranged on the moving block, the fixed seat is fixedly arranged at the end of the moving block, and the moving triangular plate is fixedly arranged at the bottom of the fixed seat, the rotating plate is rotated to drive the first protrusions to extrude the moving blocks, so that the fixed seat moves towards the moving triangular plate, drives the limiting devices, and clamps and lifts the second supporting seat.

[0008] As a further optimization scheme of the application, a first groove, a second groove and a third groove are arranged on the upper mold, the moving triangular plate is slidably arranged in the first groove, the first grooves are circumferentially arranged on the upper mold, the second groove is arranged at the center of the upper mold, the third groove is arranged at the lower part of the upper mold, and the third groove is connected with the limiting device.

[0009] As a further optimization scheme of the application, the power device comprises a limiting sliding block fixedly arranged at the bottom of the rotating ball rod, the second groove is arranged in the inside of the upper mold, the limiting sliding block is slidably arranged in the second groove, a groove is arranged on the outside of the limiting sliding block, and a protrusion is arranged on the inner wall of the second groove.

[0010] As a further optimization scheme of the application, a cylindrical protrusion is fixedly arranged at the bottom of the first protrusion, the cylindrical protrusion is slidably arranged in the moving block, the sliding groove in the moving block is divided into two sections, when the cylindrical protrusion at the bottom of the first protrusion is slidably arranged in the first section, the limiting sliding groove remains stationary, and when the cylindrical protrusion at the bottom of the first protrusion is slidably arranged in the second section, the limiting sliding groove is driven to move away from the center of the rotating plate.

[0011] As a further optimization scheme of the present application, the limiting device comprises a slide column fixedly installed outside the circumferential array of the rotating plate, a square slide block is arranged on the top of the rotating plate, a square slide block is arranged outside the slide column, a first telescopic rod is fixedly installed on the side of the square slide block, an adjusting plate is fixedly installed on the end of the first telescopic rod, a limiting clamp block is slidingly installed inside the adjusting plate, second protrusions are fixedly installed outside the limiting clamp block, an adjusting rod is rotatably installed on the bottom of the adjusting plate, the adjusting rod is installed inside the third groove, a second spring is arranged outside the adjusting rod, limiting slide frames are fixedly installed on the outer circumferences of the upper mold, and the limiting clamp block slides inside the limiting slide frame.

[0012] As a further optimization scheme of the present application, a first spring is arranged on the first telescopic rod, and the end of the first spring is fixedly installed with the side wall of the square slide block.

[0013] As a further optimization scheme of the present application, a triangular notch is arranged on the bottom of the limiting clamp block, and the shape of the triangular notch is the same as that of the protrusion on the top of the clamping rod.

[0014] As a further optimization scheme of the present application, the length of the adjusting rod is greater than that of the limiting slide frame, and the end of the adjusting rod is fixedly installed with the inside of the limiting slide frame.

[0015] As a further optimization scheme of the present application, the outer diameter of the limiting slide block is greater than the inner diameter of the opening on the top of the second groove, and the highest point on the bottom of the limiting clamp block is higher than the bottom of the upper mold.

[0016] As a further optimization scheme of the present application, a reinforcing rib is arranged on the clamping rod, and the diameter of the third groove is greater than the outer diameter of the second spring.

[0017] The present application has the following beneficial effects:

[0018] The casting device for producing a chemical pump casting has the following advantages: when the upper mold is combined with the lower mold, the upper mold can automatically adjust the angle when subjected to external force, preventing the upper mold from excessively extruding the type sand installed in the lower mold, thereby protecting the type sand and the pouring work of the centrifugal pump; the power device can adjust the centering work of the combined lower mold and upper mold, preventing the lower mold and the upper mold from being deformed after long-term use, and preventing the problems of incomplete or inclined combination; the limiting device can clamp and drive the upper mold to rise during the combination of the lower mold and the upper mold, and the gap between the lower mold and the upper mold can blow the type sand that may fall from the bottom of the lower mold, thereby improving the qualified rate during pouring and preventing the problem of sand holes caused by the falling of type sand. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the schematic diagram of the overall device of the present application;

[0020] Figure 2 is the schematic diagram of the overall device installation of the present application;

[0021] Figure 3 is the connection diagram of the power device and the limiting device of the present application;

[0022] Figure 4 is the schematic diagram of the internal structure of the power device of the present application;

[0023] Figure 5 is the schematic diagram of the internal connection of the power device of the present application;

[0024] Figure 6 is the schematic diagram of the internal structure of the limiting device of the present application;

[0025] Figure 7 is the schematic diagram of the internal structure connection of the limiting device of the present application;

[0026] Figure 8 is the schematic diagram of the transmission of the power device and the limiting device of the present application.

[0027] In the figure:

[0028] 1, first support seat; 11, second support seat; 12, lower mold; 121, clamping rod; 13, upper mold; 131, first groove; 132, second groove; 133, third groove; 14, support rod; 15, threaded rod; 151, fixed ball; 152, rotating ball rod; 16, pouring opening;

[0029] 2, power device; 21, rotating plate; 22, limiting sliding block; 23, limiting sliding groove; 24, moving block; 25, first protrusion; 26, fixed seat; 27, moving triangular plate;

[0030] 3, limiting device; 31, square sliding block; 32, sliding column; 33, first spring; 34, first telescopic rod; 35, limiting clamping block; 351, second protrusion; 352, triangular notch; 36, adjusting plate; 37, second spring; 38, adjusting rod; 39, limiting sliding frame. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that discussions of these implementations are merely provided to enable those skilled in the art to better understand so as to be able to implement the subject matter described herein, and variations of elements discussed can be made by one skilled in the art. Various examples can omit, substitute, or add various procedures or components as appropriate. Also, it will be understood that the terminology used herein is for the purpose of describing examples only and is not intended to be limiting. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Also, as used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0032] As shown in Figures 1 to 3 The casting device for producing chemical pump castings provided by the embodiments of the present application comprises a first support seat 1, a plurality of support rods 14 are fixedly installed at the bottom of the first support seat 1 in a circumferential array, a second support seat 11 is fixedly installed at the bottom of the support rods 14, a lower mold 12 is fixedly installed at the top center of the second support seat 11, a plurality of clamping rods 121 are fixedly installed at the outside of the lower mold 12 in a circumferential array, a threaded rod 15 is fixedly installed at the center of the first support seat 1, a fixed ball 151 is fixedly installed at the bottom of the threaded rod 15, a rotating ball rod 152 is movably installed in the fixed ball 151, an upper mold 13 is arranged at the bottom of the rotating ball rod 152, a pouring opening 16 is fixedly installed on the upper mold 13, a power device 2 is arranged on the upper mold 13, a plurality of limiting devices 3 are arranged on the upper mold 13 in a circumferential array, and the power device 2 is used to drive the limiting devices 3 to clamp and lift the lower mold 12.

[0033] As shown in Figures 4 to 5 The power device 2 comprises a rotating plate 21, a limiting sliding groove 23, a moving block 24, a first protrusion 25, a fixed seat 26, and a moving triangular plate 27. The rotating plate 21 is rotatably installed on the upper mold 13, a plurality of first protrusions 25 are fixedly installed on the outside of the rotating plate 21 in a circumferential array, a plurality of moving blocks 24 are slidably installed on the upper mold 13 in a circumferential array, the limiting sliding groove 23 is arranged on the moving block 24, the fixed seat 26 is fixedly installed at the end of the moving block 24, the moving triangular plate 27 is fixedly installed at the bottom of the fixed seat 26, the rotating plate 21 is rotated to drive the first protrusions 25 to extrude the moving blocks 24, so that the fixed seat 26 moves towards the moving triangular plate 27, and the limiting devices 3 are driven to clamp and lift the second support seat 11.

[0034] It should be noted that, since the centrifugal pump is placed in the lower mold 12 during pouring, a sand mold made of sand needs to be placed in the lower mold 12, and after the mold is placed, the upper mold 13 can be moved to make the two upper and lower molds close, during this process, due to the long use of the mold and the influence of the shape of the sand mold itself, when the upper and lower molds are closed, the upper mold 13 may touch the sand mold, and the upper mold 13 moves vertically up and down, when the mold collision is found, the sand mold itself has been damaged, and after the sand mold is damaged, some sand may fall into the lower mold 12, the sand falls into some corners, and in the subsequent pouring process, the problem of sand holes or uneven pouring occurs, in order to solve this problem, the following improvements are made;

[0035] The rotating plate 21 is arranged on the upper mold 13, the first groove 131 and the second groove 132 are arranged in the interior of the upper mold 13, the moving triangular plate 27 slides in the first groove 131, and the limit slider 22 is slidingly arranged in the second groove 132, the top of the limit slider 22 is connected with the rotating ball rod 152, so that when the lower mold 12 and the upper mold 13 are separated, the limit slider 22 is in the position of contacting the rotating plate 21, the centrifugal pump sand mold is placed in the interior of the lower mold 12, the threaded rod 15 is started to drive the upper mold 13 to descend, the lower part of the threaded rod 15 is provided with the fixed ball 151 and the rotating ball rod 152, if the sand mold contacts when the threaded rod 15 descends, the fixed ball 151 and the rotating ball rod 152 can be tilted and moved, so that the problem that the sand mold in the interior of the lower mold 12 is extruded and damaged by the descending of the upper mold 13 is prevented, if the contact and extrusion are not generated, the threaded rod 15 continues to be started until the lower mold 12 and the upper mold 13 begin to contact, at this time, the limit slider 22 is at the upper part of the second groove 132, the threaded rod 15 continues to descend to drive the limit slider 22 to descend, in the process of the limit slider 22 descending, the rotating plate 21 can be rotated, the rotating plate 21 rotating can drive the first protrusion 25 to rotate, the first section of the limit sliding groove 23 on the moving block 24 does not drive the fixed seat 26 and the moving triangular plate 27 to move when rotating, in this stage, the rotating plate 21 rotating can drive the limiting device 3 to descend, and the center of the upper mold 13 is synchronously approached, the lower mold 12 is clamped, in this process, the upper mold 13 is driven to ascend for a short distance, even if the upper mold 13 ascends for a short distance, the limit slider 22 is not at the bottom end of the second groove 132, so the threaded rod 15 can still continue to descend, when the rotating plate 21 continues to rotate, the first protrusion 25 can be rotated, the limit sliding groove 23 on the moving block 24 enters the second section of rotation, this stage can drive the moving block 24, the fixed seat 26 and the moving triangular plate 27 to move away from the center of the upper mold 13, at this time, the limiting device 3 is in the state of clamping the lower mold 12, and the upper mold 13 is above the lower mold 12, and there is a large gap between the two, at this time, the air pump can be used to blow and clean the bottom of the lower mold 12, so that the problem that the sand falls and drops to the bottom of the lower mold 12 due to vibration during installation is prevented, thereby improving the qualified rate of subsequent centrifugal pump pouring, the first protrusion 25 rotating can drive the moving triangular plate 27 to move away from the center of the upper mold 13, so that the moving triangular plate 27 can be moved away from the center of the upper mold 13, so that the limiting device 3 can descend during clamping of the lower mold 12, until the limit slider 22 moves to the bottom of the second groove 132, then the lower mold 12 and the upper mold 13 are completely combined together, and the pouring work can be performed, the metal liquid is poured into the interior of the pouring opening 16, then the threaded rod 15 is started to ascend, thereby driving the upper mold 13 to ascend,The device separates the lower mold 12 and the upper mold 13; the device makes the upper mold 13 automatically adjust the angle when the upper mold 13 is subjected to external force when the upper mold 13 is combined with the lower mold 12, prevents the upper mold 13 from excessively extruding the mold sand installed in the lower mold 12, thereby protecting the mold sand and the pouring work of the centrifugal pump, and the power device 2 can work on the combination of the lower mold 12 and the upper mold 13, prevent the lower mold 12 and the upper mold 13 from being deformed after long-term use, and prevent the lower mold 12 and the upper mold 13 from being combined incompletely or inclined, and the limiting device 3 can be clamped and driven to rise during the combination of the lower mold 12 and the upper mold 13, the gap between the lower mold 12 and the upper mold 13 can blow the mold sand that may fall off the bottom of the lower mold 12, improve the qualified rate during pouring, and prevent the problem of sand holes caused by falling sand.

[0036] As shown in Figures 4 to 6 The upper mold 13 is provided with a first groove 131, a second groove 132 and a third groove 133, the moving triangular plate 27 slides in the first groove 131, the first grooves 131 are arranged in the circumference of the upper mold 13, the second groove 132 is arranged in the center of the upper part of the upper mold 13, the third groove 133 is arranged in the lower part of the upper mold 13, and the third groove 133 is connected with the limiting device 3.

[0037] It should be noted that the moving triangular plate 27 slides in the first groove 131, so that when the rotating plate 21 rotates, the moving triangular plate 27 can be driven to move away from the center of the rotating plate 21, thereby driving the limiting device 3 to clamp the lower mold 12 and driving the upper mold 13 to rise, the second groove 132 can drive the rotating plate 21 to rotate when the rotating ball rod 152 descends, and the third groove 133 is connected with the limiting device 3 to limit the position of the limiting device 3 when it rises.

[0038] As shown in Figures 4 to 5 The power device 2 comprises a limiting slide block 22 fixedly installed at the bottom of the rotating ball rod 152, the inside of the upper mold 13 is provided with a second groove 132, the limiting slide block 22 slides in the second groove 132, the outside of the limiting slide block 22 is provided with a groove, and the inner wall of the second groove 132 is provided with a protrusion.

[0039] It should be noted that when the lower mold 12 and the upper mold 13 contact, the threaded rod 15 descends to drive the rotating ball rod 152 to descend, the rotating ball rod 152 is threadedly engaged with the rotating plate 21, and under the descending of the rotating ball rod 152 and the limiting action of the limiting device 3 on the upper mold 13, the rotating plate 21 can be driven to rotate, thereby driving the limiting device 3 to stretch and retract and to rise and fall.

[0040] As Figures 4 to 5 shown, the bottom of the first protrusion 25 is fixedly installed with a cylindrical protrusion, which slides in the interior of the moving block 24. The interior sliding groove of the moving block 24 is two sections, so that when the first stage of the cylindrical protrusion at the bottom of the first protrusion 25 slides, the limiting sliding groove 23 remains stationary, and when the second stage of the cylindrical protrusion at the bottom of the first protrusion 25 slides, it drives the limiting sliding groove 23 to move away from the center of the rotating plate 21.

[0041] It should be noted that when the rotating plate 21 drives the first protrusion 25 to rotate, the first stage does not drive the limiting sliding groove 23 and the fixed seat 26 to move away from the rotating plate 21. At this time, the limiting device 3 can be lowered to clamp the lower mold 12. When the second stage of the cylindrical protrusion at the bottom of the first protrusion 25 slides, the limiting device 3 can drive the upper mold 13 to rise, so that the bottom of the lower mold 12 can be blown, thereby completing the cleaning of the sand that may fall off the bottom of the lower mold 12.

[0042] As Figures 6 to 8 shown, the limiting device 3 includes a sliding column 32 fixedly installed outside the rotating plate 21 in a circumferential array. The top of the rotating plate 21 is provided with a square sliding block 31. The outside of the sliding column 32 is provided with a square sliding block 31. The side of the square sliding block 31 is fixedly installed with a first telescopic rod 34. The end of the first telescopic rod 34 is fixedly installed with an adjusting plate 36. The inside of the adjusting plate 36 is slidingly installed with a limiting clamp block 35. The outside of the limiting clamp block 35 is fixedly installed with symmetrically arranged second protrusions 351. The bottom of the adjusting plate 36 is rotatably installed with an adjusting rod 38. The adjusting rod 38 is installed in the third groove 133. The outside of the adjusting rod 38 is provided with a second spring 37. The outside of the upper mold 13 is fixedly installed with a limiting sliding frame 39. The inside of the limiting sliding frame 39 is slidingly installed with the limiting clamp block 35.

[0043] It should be noted that when the rotating plate 21 rotates, it can drive the sliding column 32 to rotate, so that the square sliding block 31 moves towards the center of the rotating plate 21, thereby driving the first telescopic rod 34 and the adjusting plate 36 to move towards the center of the rotating plate 21. The outside of the adjusting plate 36 is provided with the limiting clamp block 35, thereby driving the limiting clamp block 35 to move towards the center of the rotating plate 21. The limiting sliding frame 39 has the function of limiting the limiting clamp block 35. When the limiting clamp block 35 moves towards the center of the rotating plate 21, the second protrusion 351 slides in the lower part of the moving triangular plate 27, thereby driving the limiting clamp block 35 to descend, completing the clamping and centering of the lower mold 12, thereby completing the clamping and centering work, preventing the lower mold 12 and the upper mold 13 from being inclined when the lower mold 12 and the upper mold 13 are closed.

[0044] AsFigures 6 to 8 As shown, a first spring 33 is provided on the first telescopic rod 34, and the end of the first spring 33 is fixedly installed on the side wall of the square slider 31.

[0045] It should be noted that a first spring 33 is provided on the first telescopic rod 34. The end of the first spring 33 is fixedly installed on the side wall of the square slider 31. When the limiting clamping block 35 descends and clamps the lower mold 12, the clamping and lifting work is completed. At this time, the rotation of the rotating plate 21 can still drive the square slider 31 to rotate closer to the center of the rotating plate 21. The cooperation of the first spring 33 and the first telescopic rod 34 makes it so that the rotation of the square slider 31 will no longer drive the adjusting plate 36 to move closer to the center of the rotating plate 21. Under the action of the first spring 33, the limiting clamping block 35 still has the function of clamping the lower mold 12, and the first telescopic rod 34 has the function of telescopic extension.

[0046] like Figure 3 and Figures 6 to 7 As shown, the bottom of the limiting clamp 35 is provided with a triangular notch 352, and the shape of the triangular notch 352 is the same as the protrusion shape on the top of the clamp 121.

[0047] It should be noted that the bottom of the limiting clamp 35 is provided with a triangular notch 352. The shape of the triangular notch 352 is the same as the protrusion on the top of the clamping rod 121, so that when the limiting clamp 35 descends, it can abut against the clamping rod 121 and slide on the top of the clamping rod 121, thereby limiting and supporting the limiting clamp 35.

[0048] like Figures 5 to 6 As shown, the length of the adjusting rod 38 is greater than the length of the limiting slide frame 39, and the end of the adjusting rod 38 is fixedly installed inside the limiting slide frame 39.

[0049] It should be noted that the length of the adjusting rod 38 is greater than the length of the limiting slide frame 39. The end of the adjusting rod 38 is fixedly installed inside the limiting slide frame 39, so that when the limiting clamp 35 slides inside the limiting slide frame 39, the side of the limiting clamp 35 can contact the outside of the upper mold 13 without affecting the extension and retraction effect of the second spring 37.

[0050] like Figures 7 to 8 As shown, the outer diameter of the limiting slider 22 is larger than the inner diameter of the top opening of the second groove 132, and the highest point of the bottom of the limiting clamping block 35 is higher than the bottom of the upper mold 13.

[0051] It should be noted that the outer diameter of the limiting sliding block 22 is greater than the inner diameter of the top opening of the second groove 132, so that the limiting sliding block 22 cannot come out of the inside of the second groove 132, thereby when the rotating ball rod 152 rises, the upper mold 13 can be driven to rise, the highest point of the bottom of the limiting clamp block 35 is higher than the bottom of the upper mold 13, and when the upper mold 13 is lowered to contact the lower mold 12, no influence is caused to the mold closing of the lower mold 12 and the upper mold 13.

[0052] As shown in Figures 3 to 8 The third groove 133 is provided with a reinforcing rib on the clamping rod 121, and the diameter of the third groove 133 is greater than the outer diameter of the second spring 37.

[0053] It should be noted that the clamping rod 121 is provided with a reinforcing rib for improving the strength of the clamping rod 121 and preventing the clamping rod 121 from being deformed when being supported, and the diameter of the third groove 133 is greater than the outer diameter of the second spring 37, so that the second spring 37 can be squeezed into the inside of the third groove 133 when being contracted.

[0054] The above describes the embodiments of the present application, but the present application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the present embodiments, which all belong to the protection of the present application.

Claims

1. A casting apparatus for producing chemical pump castings, comprising a first support base (1), characterized in that: The bottom of the first support base (1) is fixedly installed with a support rod (14) arranged in a circular array. The bottom of the support rod (14) is fixedly installed with a second support base (11). The top center of the second support base (11) is fixedly installed with a lower mold (12). The outside of the lower mold (12) is fixedly installed with a clamping rod (121) arranged in a circular array. The center of the first support base (1) is fixedly installed with a threaded rod (15). The bottom of the threaded rod (15) is fixedly installed with a fixed ball (151). The inside of the fixed ball (151) is movably installed with a rotating ball rod (152). The bottom of the rotating ball rod (152) is provided with an upper mold (13). The upper mold (13) is fixedly installed with a pouring port (16). The upper mold (13) is provided with a power device (2). The upper mold (13) is arranged in a circular array with a limit device (3). The power device (2) is used to drive the limit device (3) to clamp and lift the lower mold (12). The power unit (2) includes a rotating plate (21), a limiting groove (23), a moving block (24), a first protrusion (25), a fixed seat (26), and a moving triangular plate (27). The rotating plate (21) is rotatably mounted on the upper mold (13). The first protrusion (25) arranged in a circular array is fixedly mounted on the outside of the rotating plate (21). The moving block (24) arranged in a circular array is slidably mounted on the upper mold (13). The moving block (24) is provided with a limiting groove (23). The fixed seat (26) is fixedly mounted at the end of the moving block (24). The moving triangular plate (27) is fixedly mounted at the bottom of the fixed seat (26). The rotating plate (21) rotates and drives the first protrusion (25) to squeeze the moving block (24), so that the fixed seat (26) moves towards the moving triangular plate (27), driving the limiting device (3) to clamp and lift the second support seat (11). The upper mold (13) is provided with a first groove (131) and a second groove (23). The limiting device (3) includes a groove (132) and a third groove (133). The limiting device (3) includes a sliding column (32) fixedly installed in a circumferential array outside the rotating plate (21). A square slider (31) is provided on the top of the rotating plate (21). A square slider (31) is sleeved on the outside of the sliding column (32). A first telescopic rod (34) is fixedly installed on the side of the square slider (31). An adjusting plate (36) is fixedly installed at the end of the first telescopic rod (34). The adjusting plate (36) is slidably installed inside. There is a limiting clamp (35), and a second protrusion (351) is symmetrically arranged fixedly installed on the outside of the limiting clamp (35). An adjusting rod (38) is rotatably installed on the bottom of the adjusting plate (36). The adjusting rod (38) is installed inside the third groove (133). A second spring (37) is arranged on the outside of the adjusting rod (38). A limiting slide frame (39) is fixedly installed on the outer circumferential array of the upper mold (13). The limiting clamp (35) slides inside the limiting slide frame (39).

2. The casting apparatus for producing chemical pump castings according to claim 1, characterized in that: The movable triangular plate (27) slides inside the first groove (131), the first groove (131) is arranged in a circumferential array on the upper mold (13), the upper center of the upper mold (13) is provided with a second groove (132), the lower part of the upper mold (13) is provided with a third groove (133), and the third groove (133) is connected to the limiting device (3).

3. The casting apparatus for producing chemical pump castings according to claim 2, characterized in that: The power unit (2) includes a limiting slider (22) fixedly installed at the bottom of the rotating ball (152). The upper mold (13) has a second groove (132) inside. The limiting slider (22) slides inside the second groove (132). The limiting slider (22) has a groove outside. The inner wall of the second groove (132) has a protrusion.

4. The casting apparatus for producing chemical pump castings according to claim 3, characterized in that: A cylindrical protrusion is fixedly installed at the bottom of the first protrusion (25). This cylindrical protrusion slides inside the moving block (24). The sliding groove inside the moving block (24) is divided into two sections, so that when the cylindrical protrusion at the bottom of the first protrusion (25) slides in the first stage, the limiting groove (23) remains stationary. When the cylindrical protrusion at the bottom of the first protrusion (25) slides in the second stage, it drives the limiting groove (23) to move away from the center of the rotating plate (21).

5. A casting apparatus for producing chemical pump castings according to claim 4, characterized in that: A first spring (33) is provided on the first telescopic rod (34), and the end of the first spring (33) is fixedly installed on the side wall of the square slider (31).

6. A casting apparatus for producing chemical pump castings according to claim 5, characterized in that: The bottom of the limiting clamp (35) is provided with a triangular notch (352), the shape of which is the same as the protrusion on the top of the lever (121).

7. A casting apparatus for producing chemical pump castings according to claim 6, characterized in that: The length of the adjusting rod (38) is greater than the length of the limiting slide frame (39), and the end of the adjusting rod (38) is fixedly installed inside the limiting slide frame (39).

8. A casting apparatus for producing chemical pump castings according to claim 7, characterized in that: The outer diameter of the limiting slider (22) is greater than the inner diameter of the top opening of the second groove (132), and the highest point of the bottom of the limiting clamp (35) is higher than the bottom of the upper mold (13).

9. A casting apparatus for producing chemical pump castings according to claim 8, characterized in that: The lever (121) is provided with reinforcing ribs, and the diameter of the third groove (133) is larger than the outer diameter of the second spring (37).

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