Casting device for processing decorative well lid

By adjusting the turntable angle through the control panel and controller, and adjusting the position of the funnel and the material drop pipe through the lead screw and hydraulic cylinder, the problem of the inability to flexibly adjust the feed inlet of the existing manhole cover casting device is solved, and efficient utilization of raw materials is achieved.

CN223862850UActive Publication Date: 2026-02-03GUANGZHOU JUN GENG JUN BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202520007595.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-02-03
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The existing manhole cover casting equipment cannot flexibly adjust the position of the feed inlet, which requires moving sand boxes of different specifications, which is time-consuming, labor-intensive, and easily leads to waste of raw materials.

Method used

The control panel and controller work together with the first stepper motor to adjust the turntable angle. The position of the feed hopper is observed through the marking line. The position of the funnel and the discharge pipe are adjusted by the lead screw and hydraulic cylinder to ensure alignment. The sand box is fixed by the clamping plate.

Benefits of technology

It enables precise adjustment of the feed inlet position, improves the stability and efficiency of the device, and avoids waste of raw materials.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223862850U_ABST
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Abstract

The utility model discloses a casting device for machining a decorative well lid, and relates to the technical field of well lid machining, the casting device for machining the decorative well lid comprises a working table, a rotating disc is installed in the middle of the top of the working table, and a first stepping motor is installed in the middle of the bottom of the working table; the rotating disc is located on an output shaft of the first stepping motor, a sand box is arranged at the top of the rotating disc, a feeding hopper is installed on one side of the top of the sand box, first hydraulic cylinders are installed in the middles of the two sides of the top of the workbench, and a supporting plate is installed at the tops of the first hydraulic cylinders; according to the scheme, the problems that in the using process of an existing well lid casting device, the position of a feeding port cannot be flexibly adjusted, for sand boxes of different specifications, the sand boxes need to be moved to ensure that a discharging pipe is aligned with the feeding port, time and labor are wasted, and the production efficiency is high are solved. And raw material waste caused by errors can be avoided.
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Description

Technical Field

[0001] This utility model relates to the field of manhole cover processing technology, specifically a casting device for processing decorative manhole covers. Background Technology

[0002] Currently, metal manhole covers are usually made by casting, which involves pouring molten metal or concrete into a mold to form the manhole cover. This method is often used to make sturdy and durable manhole covers to ensure that they can withstand the pressure from vehicles and pedestrians and protect the safety and hygiene of the manhole opening.

[0003] As indicated by announcement number CN218425571U, a manhole cover casting and molding device is described. The device includes a base, a sand box on the top of the base, a support column fixedly connected to the top of the base in front of the sand box, a material drop pipe on the top of the support column, and an adjustment mechanism for controlling the horizontal position of the material drop pipe between the material drop pipe and the support column. The adjustment mechanism includes a sleeve and a sliding rod, with the sliding rod sleeved in the cavity of the sleeve and slidably connected to the sleeve.

[0004] The above-mentioned device cannot flexibly adjust the position of the feed inlet during use. For sand boxes of different specifications, the sand box needs to be moved to ensure that the discharge pipe is aligned with the feed inlet, which is time-consuming, labor-intensive, and prone to errors, resulting in waste of raw materials. Therefore, we propose a casting device for processing decorative manhole covers to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a casting device for processing decorative manhole covers, so as to solve the problem that the existing manhole cover casting device mentioned in the background art cannot flexibly adjust the position of the feed inlet during use. For sand boxes of different specifications, it is necessary to move the sand box to ensure that the drop pipe is aligned with the feed inlet, which is time-consuming, labor-intensive, and prone to errors, resulting in waste of raw materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting device for processing decorative manhole covers, comprising a workbench, a turntable installed at the center of the top of the workbench, a first stepper motor installed at the center of the bottom of the workbench, the turntable located on the output shaft of the first stepper motor, a sand box provided on the top of the turntable, a feed hopper installed on one side of the top of the sand box, a first hydraulic cylinder installed at the center of both sides of the top of the workbench, a support plate installed on the top of the first hydraulic cylinder, two sets of lead screws installed between the two support plates, and two sets of second stepper motors installed on the other side of the right support plate. The lead screw is connected to the second stepper motor via a coupling located on the output shaft of the second stepper motor. A nut seat is slidably mounted on the outer wall of the lead screw, and a sleeve is installed inside the nut seat. The sleeve is located between the two lead screws. A funnel is installed on the top of the sleeve, and a material discharge pipe is installed on the bottom of the sleeve. Several sets of fixing plates are installed on the top of the worktable. A second hydraulic cylinder is installed on the side of the fixing plate near the sand box, and a clamping plate is installed on the other side of the second hydraulic cylinder. A control panel is installed on one side of the top of the worktable, and a controller is installed on the other side of the top of the worktable.

[0007] Preferably, the output terminal of the control panel is electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the input terminal of the first stepper motor.

[0008] Preferably, the other side of the lead screw is connected to the support plate via a bearing seat.

[0009] Preferably, the diameter of the discharge pipe is smaller than the diameter of the feed hopper.

[0010] Preferably, the fixing plates are distributed in a ring around the turntable.

[0011] Preferably, a marking line is provided in the middle of the top of the workbench.

[0012] Preferably, the bottom of the workbench is equipped with support legs around its perimeter, and the bottom of the support legs is equipped with support pads.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention adjusts the rotation angle of the first stepper motor through the combined action of the control panel and the controller. The position of the feed hopper can be observed through the marking line. Furthermore, the angle of the sand box can be quickly adjusted through the combined action of the turntable and the first stepper motor. The setting of two sets of lead screws can improve the stability of the funnel and the discharge pipe. This solves the problem that existing manhole cover casting devices cannot flexibly adjust the position of the feed inlet during use. For sand boxes of different specifications, it is necessary to move the sand box to ensure that the discharge pipe is aligned with the feed inlet, which is time-consuming, labor-intensive, and prone to errors, resulting in waste of raw materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a front cross-sectional view of the present invention.

[0019] In the diagram: 1. Workbench; 2. Turntable; 3. First stepper motor; 4. Sand box; 5. Feed hopper; 6. First hydraulic cylinder; 7. Support plate; 8. Lead screw; 9. Second stepper motor; 10. Coupling; 11. Bearing seat; 12. Nut seat; 13. Sleeve; 14. Funnel; 15. Feed pipe; 16. Fixing plate; 17. Second hydraulic cylinder; 18. Clamping plate; 19. Control panel; 20. Controller; 21. Support leg; 22. Support pad; 23. Marking line. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4This utility model provides an embodiment of a casting device for processing decorative manhole covers, comprising a workbench 1, a turntable 2 installed at the center of the top of the workbench 1, a first stepper motor 3 installed at the center of the bottom of the workbench 1, the turntable 2 located on the output shaft of the first stepper motor 3, a sand box 4 provided on the top of the turntable 2, a feed hopper 5 installed on one side of the top of the sand box 4, a first hydraulic cylinder 6 installed at the center of both sides of the top of the workbench 1, a support plate 7 installed on the top of the first hydraulic cylinder 6, two sets of lead screws 8 installed between the two support plates 7, and two sets of second stepper motors 9 installed on the other side of the right support plate 7, the lead screws 8 being connected by a coupling 10. Connected to the second stepper motor 9, the coupling 10 is located on the output shaft of the second stepper motor 9. A nut seat 12 is slidably installed on the outer wall of the lead screw 8. A sleeve 13 is installed inside the nut seat 12. The sleeve 13 is located between the two lead screws 8. A funnel 14 is installed on the top of the sleeve 13. A material drop pipe 15 is installed on the bottom of the sleeve 13. Several sets of fixing plates 16 are installed on the top of the workbench 1. A second hydraulic cylinder 17 is installed on the side of the fixing plate 16 near the sand box 4. A clamping plate 18 is installed on the other side of the second hydraulic cylinder 17. A control panel 19 is installed on one side of the top of the workbench 1. A controller 20 is installed on the other side of the top of the workbench 1.

[0022] Please see Figure 1 The output terminal of the control panel 19 is electrically connected to the input terminal of the controller 20, and the output terminal of the controller 20 is electrically connected to the input terminal of the first stepper motor 3, so that the rotation angle of the first stepper motor 3 can be adjusted through the control panel 19, thereby making the position adjustment of the feed hopper 5 more precise.

[0023] Please see Figure 2 The other side of the lead screw 8 is connected to the support plate 7 through the bearing seat 11. The bearing seat 11 can provide support for the rotating lead screw 8, thereby increasing the stability of the funnel 14 and the discharge pipe 15, and thus improving the stability of the device.

[0024] Please see Figure 4 The diameter of the discharge pipe 15 is smaller than the diameter of the feed hopper 5, which makes it easier for raw materials to enter the feed hopper 5 from the discharge pipe 15 and to align the discharge pipe 15 with the feed hopper 5 to avoid waste.

[0025] Please see Figure 2 The fixing plates 16 are arranged in a ring around the turntable 2. The multiple fixing plates 16 arranged in a ring can be used to fix the sand box 4 more firmly to the top of the workbench 1 through the clamping plate 18, which can improve the stability of the sand box 4.

[0026] Please see Figure 2A marking line 23 is set in the middle of the top of the workbench 1 to facilitate observation of the position of the feed hopper 5. The angle of the sand box 4 can be quickly adjusted by the turntable 2 and the first stepper motor 3, which can improve the working efficiency of the device.

[0027] Please see Figure 1 Support legs 21 are installed around the bottom of the workbench 1, and support pads 22 are installed at the bottom of the support legs 21. By setting the support legs 21 and support pads 22, the device as a whole can be more stable during operation.

[0028] Working principle: In use, the sand box 4 is placed on the turntable 2. The rotation angle of the first stepper motor 3 is adjusted by the combined action of the control panel 19 and the controller 20. The position of the feed hopper 5 can be observed through the marking line 23. Then, the angle of the sand box 4 is quickly adjusted by the combined action of the turntable 2 and the first stepper motor 3. The second stepper motor 9 drives the lead screw 8 to rotate, so that the nut seat 12 moves left and right along the outer wall of the lead screw 8, thereby adjusting the position of the funnel 14 and the discharge pipe 15 until the funnel 14 and the discharge pipe 15 are above the feed hopper 5. The first hydraulic cylinder 6 drives the funnel 14 and the discharge pipe 15 to descend, which can detect whether the discharge pipe 15 is aligned with the feed hopper 5 and make timely adjustments to avoid waste of raw materials. After the angle of the sand box 4 is adjusted, the second hydraulic cylinder 17 drives the clamping plate 18 to move and fix the sand box 4. The multiple clamping plates 18 arranged in a ring can fix the sand box 4 more firmly on the top of the workbench 1.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A casting device for processing decorative manhole covers, comprising a workbench (1), characterized in that: A turntable (2) is installed at the middle of the top of the workbench (1), and a first stepper motor (3) is installed at the middle of the bottom of the workbench (1). The turntable (2) is located on the output shaft of the first stepper motor (3). A sand box (4) is provided on the top of the turntable (2), and a feed hopper (5) is installed on one side of the top of the sand box (4). A first hydraulic cylinder (6) is installed at the middle of both sides of the top of the workbench (1). A support plate (7) is installed on the top of the first hydraulic cylinder (6). Two sets of lead screws (8) are installed between the two support plates (7). Two sets of second stepper motors (9) are installed on the other side of the right support plate (7). The lead screws (8) are connected to the second stepper motors (9) through a coupling (10). The coupling (10) is located at the middle of the top of the workbench (1). On the output shaft of the second stepper motor (9), a nut seat (12) is slidably installed on the outer wall of the lead screw (8). A sleeve (13) is installed inside the nut seat (12). The sleeve (13) is located between the two lead screws (8). A funnel (14) is installed on the top of the sleeve (13). A material drop pipe (15) is installed on the bottom of the sleeve (13). Several sets of fixing plates (16) are installed on the top of the workbench (1). A second hydraulic cylinder (17) is installed on the side of the fixing plate (16) near the sand box (4). A clamping plate (18) is installed on the other side of the second hydraulic cylinder (17). A control panel (19) is installed on one side of the top of the workbench (1). A controller (20) is installed on the other side of the top of the workbench (1).

2. The casting device for processing decorative manhole covers according to claim 1, characterized in that: The output terminal of the control panel (19) is electrically connected to the input terminal of the controller (20), and the output terminal of the controller (20) is electrically connected to the input terminal of the first stepper motor (3).

3. The casting device for processing decorative manhole covers according to claim 1, characterized in that: The other side of the lead screw (8) is connected to the support plate (7) via a bearing seat (11).

4. The casting device for processing decorative manhole covers according to claim 1, characterized in that: The diameter of the discharge pipe (15) is smaller than the diameter of the feed hopper (5).

5. The casting device for processing decorative manhole covers according to claim 1, characterized in that: The fixing plates (16) are distributed in a ring around the turntable (2).

6. The casting device for processing decorative manhole covers according to claim 1, characterized in that: A marking line (23) is provided in the middle of the top of the workbench (1).

7. A casting device for processing decorative manhole covers according to claim 1, characterized in that: Support legs (21) are installed around the bottom of the workbench (1), and support pads (22) are installed at the bottom of the support legs (21).