Vertical automatic molding machine for well lid casting

Abstract

The utility model belongs to the technical field of automatic molding machines, and particularly relates to a vertical automatic molding machine for well lid casting, which comprises a base, the side surface of the base is connected with a footing, the outer side of the footing is sleeved with a reinforcing bracket, a guide sliding rod is arranged at the top of the reinforcing bracket, and a first motor is arranged in the reinforcing bracket; an output shaft of the first motor is connected with the first lead screw, the guide sliding rod penetrates through the sliding rod connecting block and is in sliding connection with the sliding rod connecting block, the first lead screw penetrates through the lead screw transmission block and is in threaded connection with the lead screw transmission block, and the sliding rod connecting block and the lead screw transmission block are installed on the side face of the sliding rail. Compared with an existing small molding machine, the molding machine has the advantages that a mold frame internally provided with a sand mold does not need to be manually carried by a worker, and the physical load of the worker is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic molding machines, and in particular relates to a vertical automatic molding machine for casting a manhole cover. Background Art

[0002] A manhole cover is a device used to cover a deep well on a road or in a home. Its main purpose is to prevent people or objects from falling. There are many methods for manufacturing manhole covers, among which casting is the most common method on the market. The casting method can produce large-scale manhole covers, and the manufacturing cost is relatively low. Before casting the manhole cover, it is necessary to use molding sand to make a casting mold. Generally, a vertical molding machine is used in conjunction with a mold to compact and mold the molding sand. The upper and lower sets of molding sand molds are combined into an integral casting mold, and molten iron is injected into the molding sand mold. After cooling, the manhole cover can be obtained. In the prior art, for a small vertical automatic molding machine, after the molding is completed, a worker needs to manually move the completed molding sand mold together with the mold frame from the molding machine, which is very physically demanding. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a vertical automatic molding machine for manhole cover casting. Compared with the current small molding machines, workers do not need to manually carry the mold frame with sand molds inside, which greatly reduces the physical burden of workers.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a vertical automatic molding machine for manhole cover casting, comprising a base, the side of the base is connected to the base, the top of the base is equipped with a hydraulic top cylinder, the top of the hydraulic top cylinder is connected to the mold mounting seat, the top of the mold mounting seat is equipped with a mold, the top of the mold is placed with a mold frame, the bottom of the mold mounting seat is connected to the bracket, the top of the bracket is connected to the first cylinder, the top of the first cylinder is connected with an ejector rod, the outer side of the base is sleeved with a reinforcement bracket, the top of the reinforcement bracket is equipped with a guide slide bar, the inside of the reinforcement bracket is equipped with a first motor, the output shaft of the first motor is connected to the first screw rod, the guide slide bar penetrates the slide bar connecting block and is slidably connected to it, the first screw rod penetrates the screw rod transmission block and is threadedly connected to it, the slide bar connecting block and the screw rod transmission block are installed on the side of the slide rail, one end of the slide rail is connected to the second motor, the output shaft of the second motor is connected to the second screw rod, the second screw rod penetrates the slider and is threadedly connected to it, and the top of the slider is equipped with a clamping mechanism.

[0005] The beneficial effects of the utility model are as follows: when the device completes the molding of the molding sand in the mold frame, the first cylinder can be controlled to drive the ejector rod to push the mold frame upward. Since the molding sand inside the mold frame has been pressed very tightly, the mutual squeezing between the molding sand and the mold frame can prevent the molding sand mold from falling out of the mold frame. When the mold frame moves upward until the matching convex strips and the matching grooves are horizontally aligned, the second cylinder can be controlled to push the clamping crossbeam to move toward the mold frame so that the matching convex strips and the matching grooves are inserted into each other. At this time, the clamping crossbeam supports the mold frame, the first cylinder is controlled to drive the ejector rod to leave the mold frame, and then the second motor is controlled to drive the second screw rod to rotate. The screw transmission between the second screw rod and the slider drives the slider to move forward together with the mold frame. When the mold frame moves to the top of the cart When the mold frame falls onto the trolley or other mold frames on the trolley that have completed molding sand molding, the first motor stops running, and the second cylinder drives the clamping beam to leave the mold frame. Then the first motor and the second motor can be controlled to drive the clamping beam to return to their original position. When the mold frames on the trolley are stacked to a certain height, the trolley can be pushed away. In summary, after completing molding sand molding, the device can automatically transfer the mold frame to the trolley. Compared with the current small molding machine, workers do not need to manually carry the mold frame with sand mold inside, which greatly reduces the physical burden of workers.

[0006] To complete the shaping of the sand mold:

[0007] As a further improvement of the above technical solution: a support column is installed on the top of the base, an electric rotating arm is rotatably installed on the top of the support column, and the bottom of one end of the electric rotating arm is connected to the pressure plate.

[0008] After the molding sand is filled into the mold frame, the electric rotating arm can be controlled to rotate and drive the pressing plate to rotate to the top of the mold frame, and the hydraulic top cylinder can be controlled to drive the mold and mold frame to rise, so that the pressing plate can compact the molding sand inside the mold frame to complete the shaping of the sand mold.

[0009] To load the finished sand mold and mold frame:

[0010] As a further improvement of the above technical solution: a trolley is placed on the inner side of the reinforcement bracket.

[0011] The trolley is used to load the completed sand molds and mold frames.

[0012] To clamp the mold frame:

[0013] As a further improvement of the above technical solution: the clamping mechanism includes an L-shaped plate installed above the slider, a second cylinder is installed on the side of the L-shaped plate, and a piston rod of the second cylinder is connected to the clamping beam.

[0014] The beneficial effect of this improvement is that when the mold frame moves upward until the matching ridges and matching grooves are horizontally aligned, the second cylinder can be controlled to push the clamping beam toward the mold frame so that the matching ridges and matching grooves are inserted into each other. At this time, the clamping beam plays a supporting role for the mold frame.

[0015] In order to improve the stability of the clamping beam on the mold frame:

[0016] As a further improvement of the above technical solution: a matching groove is provided on the side surface of the clamping beam close to the mold frame, and matching convex strips are provided on both side surfaces of the mold frame.

[0017] The beneficial effect of this improvement is that when the clamping beam clamps the mold frame, the matching groove and the matching convex strip are inserted into each other, which plays a limiting role and improves the stability of the clamping beam clamping the mold frame.

[0018] To lift the mold frame upward after the molding is completed:

[0019] As a further improvement of the above technical solution: the top of the ejector rod is inserted and connected with the positioning socket at the bottom of the mold frame.

[0020] The beneficial effect of this improvement is that the top of the ejector rod is inserted and connected with the positioning socket at the bottom of the mold frame, which can fix the mold frame during the sand mold forming process and can lift the mold frame upward after the molding is completed.

[0021] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the right front axonometric structure of the utility model;

[0023] Figure 2 It is a cutaway schematic diagram of the utility model;

[0024] Figure 3 It is an axonometric diagram of the utility model when it is working;

[0025] Figure 4 It is a schematic diagram of a partial bottom structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the installation of the slide rail in the utility model;

[0027] In the figure: 1. base; 2. foot; 3. hydraulic ejector cylinder; 4. mold mounting base; 5. mold; 6. bracket; 7. first cylinder; 8. ejector rod; 9. support column; 10. electric rotating arm; 11. pressure plate; 12. reinforcement bracket; 13. guide slide rod; 14. first motor; 15. first screw rod; 16. slide rail; 17. slide rod connecting block; 18. screw rod transmission block; 19. second motor; 20. second screw rod; 21. slider; 22. L-shaped plate; 23. second cylinder; 24. clamping beam; 25. matching groove; 26. mold frame; 27. matching convex strip; 28. cart. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0029] like Figure 1-5 As shown, a vertical automatic molding machine for casting a manhole cover comprises a base 1, the side of the base 1 is connected to a foot 2, a hydraulic top cylinder 3 is installed on the top of the base 1, the top of the hydraulic top cylinder 3 is connected to a mold mounting seat 4, a mold 5 is installed on the top of the mold mounting seat 4, a mold frame 26 is placed on the top of the mold 5, the bottom of the mold mounting seat 4 is connected to a bracket 6, the top of the bracket 6 is connected to a first cylinder 7, the top of the first cylinder 7 is connected to an ejector rod 8, the outer side of the foot 2 is sleeved with a reinforcement bracket 12, and a guide slide rod 13 is installed on the top of the reinforcement bracket 12 A first motor 14 is installed inside the reinforcement bracket 12, and the output shaft of the first motor 14 is connected to the first screw rod 15. The guide slide rod 13 passes through the slide rod connecting block 17 and is slidably connected thereto. The first screw rod 15 passes through the screw rod transmission block 18 and is threadedly connected thereto. The slide rod connecting block 17 and the screw rod transmission block 18 are installed on the side of the slide rail 16. One end of the slide rail 16 is connected to the second motor 19. The output shaft of the second motor 19 is connected to the second screw rod 20. The second screw rod 20 passes through the slider 21 and is threadedly connected thereto. A clamping mechanism is installed on the top of the slider 21.

[0030] When the device completes the molding of the molding sand in the mold frame 26, the first cylinder 7 can be controlled to drive the ejector rod 8 to push the mold frame 26 upward. Since the molding sand inside the mold frame 26 has been compressed very tightly, the mutual extrusion between the molding sand and the mold frame 26 can prevent the molding sand mold from falling out of the mold frame 26. When the mold frame 26 moves upward until the matching convex strip 27 is horizontally aligned with the matching groove 25, the second cylinder 23 can be controlled to push the clamping beam 24 to move toward the mold frame 26 so that the matching convex strip 27 and the matching groove 25 are inserted into each other. At this time, the clamping beam 24 plays a supporting role for the mold frame 26, and the first cylinder 7 is controlled to drive the ejector rod 8 to leave the mold frame 26. Then the second motor 19 is controlled to drive the second screw rod 20 to rotate, and the screw transmission between the second screw rod 20 and the slider 21 drives the slider 21 to move forward together with the mold frame 26. When the mold frame 26 moves to the top of the cart 28, The second motor 19 stops running, and then the first motor 14 drives the first screw rod 15 to rotate, and the first screw rod 15 drives the screw rod transmission block 18 together with the slide rail 16 and the slide rod connecting block 17 to move downward under the cooperation of the guide slide rod 13. When the mold frame 26 falls onto the cart 28 or other mold frames 26 on the cart 28 that have completed sand molding, the first motor 14 stops running, and the second cylinder 23 drives the clamping beam 24 to leave the mold frame 26. Then the first motor 14 and the second motor 19 can be controlled to drive the clamping beam 24 to return to their original position. When the mold frames 26 on the cart 28 are stacked to a certain height, the cart 28 can be pushed away. In summary, after completing sand molding, the device can automatically transfer the mold frame to the cart. Compared with the current small-scale molding machine, there is no need for workers to manually carry the mold frame with sand mold inside, which greatly reduces the physical burden of workers.

[0031] A support column 9 is installed on the top of the base 1 , and an electric rotating arm 10 is rotatably installed on the top of the support column 9 . The bottom of one end of the electric rotating arm 10 is connected to a pressing plate 11 .

[0032] After the molding sand is filled into the mold frame 26, the electric rotating arm 10 can be controlled to rotate to drive the pressing plate 11 to rotate to the top of the mold frame 26, and the hydraulic top cylinder 3 can be controlled to drive the mold 5 and the mold frame 26 to rise, so that the pressing plate 11 can compact the molding sand inside the mold frame 26 to complete the shaping of the sand mold.

[0033] A trolley 28 is placed inside the reinforcement bracket 12 .

[0034] The trolley 28 is used to load the completed sand mold and mold frame 26.

[0035] The clamping mechanism includes an L-shaped plate 22 installed above the slider 21 . A second cylinder 23 is installed on the side of the L-shaped plate 22 . The piston rod of the second cylinder 23 is connected to the clamping crossbeam 24 .

[0036] When the mold frame 26 moves upward until the matching ridge 27 is horizontally aligned with the matching groove 25, the second cylinder 23 can be controlled to push the clamping beam 24 to move toward the mold frame 26 so that the matching ridge 27 and the matching groove 25 are inserted into each other. At this time, the clamping beam 24 supports the mold frame 26.

[0037] A matching groove 25 is provided on one side of the clamping beam 24 close to the mold frame 26 , and matching convex strips 27 are provided on both side sides of the mold frame 26 .

[0038] When the clamping crossbeam 24 clamps the mold frame 26 , the matching groove 25 and the matching convex strip 27 are inserted into each other, which plays a limiting role and improves the stability of the clamping crossbeam 24 clamping the mold frame 26 .

[0039] The top of the ejector rod 8 is inserted and connected with the positioning socket at the bottom of the mold frame 26 .

[0040] The top of the ejector rod 8 is inserted and connected with the positioning socket at the bottom of the mold frame 26, which can fix the mold frame 26 during the sand mold forming process and can lift the mold frame 26 upward after the molding is completed.

[0041] Working principle and use process of the utility model: When the device is used, the insertion hole at the bottom of the mold frame 26 is aligned with the ejector rod 8 at the top of the first cylinder 7 and then inserted. At this time, the bottom of the mold frame 26 fits with the top of the mold 5. After the molding sand is filled into the interior of the mold frame 26, the electric rotating arm 10 can be controlled to rotate to drive the pressing plate 11 to rotate to the top of the mold frame 26, and the hydraulic ejector cylinder 3 can be controlled to drive the mold 5 and the mold frame 26 to rise, so that the pressing plate 11 presses and compacts the molding sand inside the mold frame 26 to complete the shaping of the molding sand mold. Then, the hydraulic ejector cylinder 3 can be controlled to drive the mold 5 to descend, so that the mold frame 26 leaves The pressing plate 11 is moved upwards, and the electric rotating arm 10 is controlled to drive the pressing plate 11 to rotate back to its original position. Then, the first cylinder 7 can be controlled to drive the ejector rod 8 to push the mold frame 26 upwards. Since the molding sand inside the mold frame 26 has been pressed very tightly, the mutual squeezing between the molding sand and the mold frame 26 can prevent the molding sand mold from falling out of the mold frame 26. When the mold frame 26 moves upwards until the matching convex strip 27 is horizontally aligned with the matching groove 25, the second cylinder 23 can be controlled to push the clamping beam 24 toward the mold frame 26, so that the matching convex strip 27 and the matching groove 25 are inserted into each other. At this time, the clamping beam 24 plays a role in the mold frame 26. The supporting effect of the first cylinder 7 is controlled to drive the ejector rod 8 to leave the mold frame 26, and then the second motor 19 is controlled to drive the second screw rod 20 to rotate, and the screw transmission between the second screw rod 20 and the slider 21 drives the slider 21 to move forward together with the mold frame 26. When the mold frame 26 moves to the top of the cart 28, the second motor 19 stops running, and then the first motor 14 drives the first screw rod 15 to rotate, and the screw rod transmission block 18 is driven by the first screw rod 15 to move downward together with the slide rail 16 and the slide rod connecting block 17 under the cooperation of the guide slide rod 13. When the mold frame 26 falls onto the cart 28 or the cart After the other mold frames 26 on the trolley 28 have completed the molding sand molding, the first motor 14 stops running, and the second cylinder 23 drives the clamping beam 24 to leave the mold frame 26, and then the first motor 14 and the second motor 19 can be controlled to drive the clamping beam 24 to return to its original position. When the mold frames 26 on the trolley 28 are stacked to a certain height, the trolley 28 can be pushed away. In summary, after completing the molding sand molding, the device can automatically transfer the mold frame to the trolley. Compared with the current small molding machines, there is no need for workers to manually carry the mold frame with the sand mold inside, which greatly reduces the physical burden of the workers.

[0042] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.

[0043] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0044] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A vertical automatic molding machine for manhole cover casting, characterized in that: The invention comprises a base (1), the side of the base (1) is connected to a foot (2), a hydraulic top cylinder (3) is installed on the top of the base (1), the top of the hydraulic top cylinder (3) is connected to a mold mounting seat (4), a mold (5) is installed on the top of the mold mounting seat (4), a mold frame (26) is placed on the top of the mold (5), the bottom of the mold mounting seat (4) is connected to a bracket (6), the top of the bracket (6) is connected to a first cylinder (7), the top of the first cylinder (7) is connected to an ejector rod (8), the outer side of the foot (2) is sleeved with a reinforcement bracket (12), the top of the reinforcement bracket (12) is installed with a guide slide bar (13), the reinforcement bracket (12) is provided ... A first motor (14) is installed inside the frame (12), the output shaft of the first motor (14) is connected to the first screw rod (15), the guide slide rod (13) passes through the slide rod connecting block (17) and is slidably connected thereto, the first screw rod (15) passes through the screw rod transmission block (18) and is threadedly connected thereto, the slide rod connecting block (17) and the screw rod transmission block (18) are installed on the side of the slide rail (16), one end of the slide rail (16) is connected to the second motor (19), the output shaft of the second motor (19) is connected to the second screw rod (20), the second screw rod (20) passes through the slider (21) and is threadedly connected thereto, and a clamping mechanism is installed on the top of the slider (21).

2. The vertical automatic molding machine for manhole cover casting according to claim 1 is characterized in that: A support column (9) is installed on the top of the base (1), and an electric rotating arm (10) is rotatably installed on the top of the support column (9), and the bottom of one end of the electric rotating arm (10) is connected to a pressure plate (11).

3. The vertical automatic molding machine for manhole cover casting according to claim 1 is characterized in that: A trolley (28) is placed inside the reinforcement bracket (12).

4. The vertical automatic molding machine for manhole cover casting according to claim 1 is characterized in that: The clamping mechanism comprises an L-shaped plate (22) installed above the slider (21), a second cylinder (23) is installed on the side of the L-shaped plate (22), and a piston rod of the second cylinder (23) is connected to a clamping crossbeam (24).

5. The vertical automatic molding machine for manhole cover casting according to claim 4 is characterized in that: A matching groove (25) is provided on one side of the clamping crossbeam (24) close to the mold frame (26), and matching convex strips (27) are provided on both side sides of the mold frame (26).

6. The vertical automatic molding machine for manhole cover casting according to claim 1, characterized in that: The top of the ejector rod (8) is inserted and connected with the positioning socket at the bottom of the mold frame (26).

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