Pouring device for nodular cast iron pipe

By adjusting the tilt angle of the casting assembly through the lifting assembly and the transmission roller driven by the motor, the problem of uneven molten iron flow is solved, and the efficient and uniform forming of ductile iron pipes is achieved.

CN223368199UActive Publication Date: 2025-09-23XIAN XIAN DONG FANG ZHU ZAO YOU XIAN GONG SI
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Patent Information

Application Number
CN202421981473.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-15
Publication Date
2025-09-23
Estimated Expiration
2034-08-15

AI Technical Summary

Technical Problem

In existing ductile iron pipe casting devices, uneven molten iron flow leads to inconsistent thickness of the ductile iron pipe, affecting the molding efficiency.

Method used

The tilt angle of the casting assembly is adjusted by the lifting assembly, so that the molten iron quickly covers the entire mold and is formed using centrifugal force. Combined with the motor-driven transmission rollers and moving components, a smooth casting process is ensured.

Benefits of technology

The uniform spreading of molten iron and efficient forming are achieved, and the forming efficiency and quality of ductile iron pipes are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pouring device for a nodular cast iron pipe, which comprises a first baffle plate, two groups of first upright posts are arranged at one end of the first baffle plate, two groups of second upright posts are arranged at the other end of the first baffle plate, the first upright posts are hinged with one end of the second baffle plate, and the other end of the second baffle plate is lapped with the second upright posts, so that the second baffle plate can be horizontally placed; the bottom of the end, close to the second stand column, of the second baffle is provided with a lifting assembly, one end of the second baffle can be lifted, and the second baffle is provided with a casting assembly. One end of the second baffle can be lifted through the lifting assembly, so that the second baffle drives the casting assembly to rotate along the first stand column, and the casting assembly is kept inclined; and when the second baffle plate is laid flat, the second upright post is used for supporting the second baffle plate, so that the second baffle plate is kept horizontal, the centrifugal movement is not influenced, and the molding of the nodular cast iron pipe is not influenced.
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Description

Technical Field

[0001] The utility model relates to the technical field of pouring devices, in particular to a pouring device for ductile iron pipes. Background Art

[0002] Ductile iron pipes are pipes cast from cast iron. Cast iron pipes are used for water supply, drainage and gas pipelines. They include cast iron straight pipes and fittings. The centrifugal casting device used in the production of ductile iron pipes pours the molten metal into a rotating casting cylinder during processing. The casting cylinder generates centrifugal force through rapid rotation, thereby quickly forming the pipe fittings.

[0003] In order to facilitate the pouring of molten iron, a swivel is often installed at one end of the casting cylinder, and the other end is the pouring port. However, the casting cylinder is generally placed horizontally, which causes the molten iron to flow to the other end relatively slowly and cannot quickly cover the entire casting cylinder. This can easily lead to uneven centrifugation of the molten iron, resulting in inconsistent thickness of the ductile iron pipe and affecting the molding efficiency. To this end, we propose a pouring device for ductile iron pipes. Utility Model Content

[0004] The purpose of the utility model is to provide a pouring device for ductile iron pipes to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a casting device for ductile iron pipes, comprising a first baffle, two groups of first columns are installed at one end of the first baffle, two groups of second columns are installed at the other end of the first baffle, the first column is hinged to one end of the second baffle, and the other end of the second baffle is overlapped with the second column, so that the second baffle can be placed horizontally, and a lifting assembly is provided at the bottom of the second baffle near one end of the second column, which can realize lifting one end of the second baffle, and the second baffle is provided with a casting assembly.

[0006] Preferably, the lifting assembly includes a connecting plate, a slider, a slide seat, a screw, a first motor and a slide groove. The second baffle is hinged to the connecting plate at the bottom near one end of the second column, and the other end of the connecting plate is hinged to the slider. The slider is slidingly connected to the slide seat installed on the first baffle. The slider is penetrated by the screw and threadedly connected to it. The screw is connected to the output end of the first motor, and the first motor is installed in the slide groove opened in the first baffle.

[0007] Preferably, the casting assembly includes a first limit seat and a casting cylinder, two groups of the first limit seats are symmetrically installed on the upper surface of the second baffle, the first limit seat is sleeved on the outside of the casting cylinder, and the casting cylinder can be rotated by the driving assembly.

[0008] Preferably, the driving assembly includes a transmission roller, a second limit seat and a second motor. The transmission rollers that are in contact with the casting cylinder are symmetrically arranged on both sides. The transmission rollers are connected to the second baffle through the second limit seat. The transmission rollers are rotatably connected to the second limit seat, and one end of the transmission rollers is connected to the output end of the second motor.

[0009] Preferably, a feeding cylinder is provided at one end of the casting cylinder, and the feeding cylinder can be moved by a moving component.

[0010] Preferably, the moving assembly includes a first connecting rod, a second connecting rod and an electric push rod. The first connecting rod is installed on one side of the feed barrel. The first connecting rod is slidingly connected to the second connecting rod. The second connecting rod is connected to a group of the first limit seats. The electric push rod is installed in the inner cavity of the second connecting rod, and the output end of the electric push rod is connected to the first connecting rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model can lift one end of the second baffle through the lifting assembly, so that the second baffle drives the casting assembly to rotate along the first column, so that the casting assembly remains tilted, thereby allowing the molten iron to quickly cover the entire mold. When the second baffle is flattened, the second column is used to support it and keep it horizontal, which will not affect the centrifugal movement and the molding of the ductile iron pipe. Compared with the existing technology, the horizontality of the casting assembly can be adjusted so that the molten iron can quickly cover the entire mold. After resetting, centrifugal molding is carried out, which has higher molding efficiency and better molding effect.

[0013] 2. The utility model starts the first motor to drive the screw to rotate, so that the slider threadedly connected to the screw slides along the slide seat, which can drive the connecting plate to lift one end of the second baffle to disengage it from the second column, thereby tilting the casting assembly. Conversely, it can also be reset to keep the second baffle horizontal, so that the casting assembly remains horizontal.

[0014] 3. The utility model starts the second motor to drive the transmission roller to rotate, so that the casting cylinder fitted with it can be rotated along the first limit seat, and the molten iron is formed by using the centrifugal force generated. The two ends of the casting cylinder can be blocked by the sealing parts in the prior art. The sealing parts generally have through holes, which will not affect the entry of molten iron. The molten iron is poured into the feed cylinder, and then the first connecting rod is pulled to slide along the inner cavity of the second connecting rod through the contraction of the electric push rod, so that the discharge pipe of the feed cylinder is inserted into the casting cylinder. After the casting is completed, the feed cylinder is pushed away from the casting cylinder by extending the electric push rod, which will not affect the centrifugal rotation of the casting cylinder and will not affect the lifting of the casting cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a side view of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the overall structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the overall structure of the utility model.

[0018] In the figure: 1. first baffle, 2. first column, 3. second column, 4. second baffle, 5. connecting plate, 6. slider, 7. slide seat, 8. screw, 9. first motor, 10. chute, 11. first limit seat, 12. casting cylinder, 13. transmission roller, 14. second limit seat, 15. second motor, 16. feeding cylinder, 17. first connecting rod, 18. second connecting rod, 19. electric push rod. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] Please refer to Figure 1-3 As shown, the utility model provides a casting device for ductile iron pipes, including a first baffle 1, two groups of first columns 2 are installed at one end of the first baffle 1, and two groups of second columns 3 are installed at the other end of the first baffle 1. The first column 2 is hinged to one end of the second baffle 4, and the other end of the second baffle 4 is overlapped with the second column 3, so that the second baffle 4 can be placed horizontally. A lifting component is provided at the bottom of the second baffle 4 near one end of the second column 3, which can realize lifting one end of the second baffle 4, and the second baffle 4 is provided with a casting component.

[0022] In this embodiment, one end of the second baffle 4 can be lifted by the lifting assembly, so that the second baffle 4 drives the casting assembly to rotate along the first column 2, so that the casting assembly remains tilted, so that the molten iron can quickly cover the entire mold. When the second baffle 4 is flattened, the second column 3 is used to support it and keep it horizontal, which will not affect the centrifugal movement and the forming of the ductile iron pipe. Compared with the existing technology, the horizontality of the casting assembly can be adjusted so that the molten iron can quickly cover the entire mold. After resetting, centrifugal forming is carried out, which has higher forming efficiency and better forming effect.

[0023] Please refer to Figure 1-3As shown, the lifting assembly includes a connecting plate 5, a slider 6, a slide 7, a screw 8, a first motor 9 and a slide 10. The second baffle 4 is hinged to the connecting plate 5 at the bottom near one end of the second column 3, and the other end of the connecting plate 5 is hinged to the slider 6. The slider 6 is slidably connected to the slide 7 installed on the first baffle 1. The slider 6 is penetrated by the screw 8 and is threadedly connected to it. The screw 8 is connected to the output end of the first motor 9, and the first motor 9 is installed in the slide 10 opened in the first baffle 1.

[0024] In this embodiment, by starting the first motor 9, the screw 8 is driven to rotate, and the slider 6 threadedly connected to it slides along the slide 7, which can drive the connecting plate 5 to lift one end of the second baffle 4 to disengage it from the second column 3, so that the casting assembly can be tilted. Conversely, it can be reset to keep the second baffle 4 horizontal, so that the casting assembly can be kept horizontal.

[0025] Please refer to Figure 1-3 As shown, the casting assembly includes a first limit seat 11 and a casting cylinder 12. Two groups of first limit seats 11 are symmetrically installed on the upper surface of the second baffle 4. The first limit seat 11 is sleeved on the outside of the casting cylinder 12. The casting cylinder 12 can be rotated by a driving assembly. The driving assembly includes a transmission roller 13, a second limit seat 14 and a second motor 15. Transmission rollers 13 are symmetrically arranged on both sides of the casting cylinder 12 and are in contact with it. The transmission roller 13 is connected to the second baffle 4 through the second limit seat 14. The transmission roller 13 is rotatably connected to the second limit seat 14, and one end thereof is connected to the output end of the second motor 15.

[0026] In this embodiment, by starting the second motor 15 to drive the driving roller 13 to rotate, the casting cylinder 12 in contact with the driving roller 13 can be rotated along the first limiting seat 11, and the generated centrifugal force can be used to shape the molten iron.

[0027] Please refer to Figure 1-3 As shown, a feed barrel 16 is provided at one end of the casting barrel 12, and the feed barrel 16 can be moved by a moving assembly. The moving assembly includes a first connecting rod 17, a second connecting rod 18 and an electric push rod 19. The first connecting rod 17 is installed on one side of the feed barrel 16, and the first connecting rod 17 is slidably connected to the second connecting rod 18. The second connecting rod 18 is connected to a group of first limit seats 11, and the electric push rod 19 is installed in the inner cavity of the second connecting rod 18. The output end of the electric push rod 19 is connected to the first connecting rod 17.

[0028] In this embodiment, both ends of the casting cylinder 12 can be sealed by the sealing parts in the prior art. The sealing parts generally have through holes, which will not affect the entry of molten iron. The molten iron is poured into the feed cylinder 16, and then the electric push rod 19 is contracted to pull the first connecting rod 17 to slide along the inner cavity of the second connecting rod 18, so that the discharge pipe of the feed cylinder 16 is inserted into the casting cylinder 12. After the casting is completed, the electric push rod 19 is extended to push the feed cylinder 16 away from the casting cylinder 12, which will not affect the centrifugal rotation of the casting cylinder 12 and will not affect the lifting of the casting cylinder 12.

[0029] Working principle: First, both ends of the casting cylinder 12 can be blocked by the sealing parts in the prior art. The sealing parts generally have through holes, which will not affect the entry of molten iron. The molten iron is poured into the feeding cylinder 16, and then the first connecting rod 17 is pulled to slide along the inner cavity of the second connecting rod 18 by the contraction of the electric push rod 19, so that the discharge pipe of the feeding cylinder 16 is inserted into the casting cylinder 12. After the casting is completed, the feeding cylinder 16 is pushed away from the casting cylinder 12 by the extension of the electric push rod 19, which will not affect the centrifugal rotation of the casting cylinder 12, nor will it affect the lifting of the casting cylinder 12. The molten iron is discharged from one end of the casting cylinder 12. After entering, by starting the first motor 9, the screw 8 is driven to rotate, and the slider 6 threadedly connected to it slides along the slide seat 7, which can drive the connecting plate 5 to lift one end of the second baffle 4 to disengage it from the second column 3, so that the casting assembly can be tilted, and the molten iron can quickly cover the entire casting cylinder 12, and then reset to keep the second baffle 4 horizontal, so that the casting assembly can be kept horizontal, and by starting the second motor 15, the transmission roller 13 is driven to rotate, so that the casting cylinder 12 fitted with it can be rotated along the first limit seat 11, and the centrifugal force generated is used to shape the molten iron to complete the production of the ductile iron pipe.

[0030] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pouring device for ductile iron pipes, comprising a first baffle (1), characterized in that: Two groups of first columns (2) are installed at one end of the first baffle (1), and two groups of second columns (3) are installed at the other end of the first baffle (1). The first column (2) is hinged to one end of the second baffle (4), and the other end of the second baffle (4) is overlapped with the second column (3), so that the second baffle (4) can be placed horizontally. A lifting component is provided at the bottom of the second baffle (4) near one end of the second column (3), so that one end of the second baffle (4) can be lifted. The second baffle (4) is provided with a casting component.

2. The pouring device for ductile iron pipes according to claim 1, characterized in that: The lifting assembly includes a connecting plate (5), a slider (6), a slide seat (7), a screw (8), a first motor (9) and a slide groove (10); the second baffle (4) is hinged to the connecting plate (5) at the bottom near one end of the second column (3); the other end of the connecting plate (5) is hinged to the slider (6); the slider (6) is slidably connected to the slide seat (7) installed on the first baffle (1); the slider (6) is penetrated by the screw (8) and is threadedly connected to it; the screw (8) is connected to the output end of the first motor (9); and the first motor (9) is installed in the slide groove (10) opened on the first baffle (1).

3. The pouring device for ductile iron pipe according to claim 1, characterized in that: The casting assembly comprises a first limiting seat (11) and a casting cylinder (12); two groups of the first limiting seats (11) are symmetrically mounted on the upper surface of the second baffle (4); the first limiting seats (11) are sleeved on the outside of the casting cylinder (12); and the casting cylinder (12) can be rotated by a driving assembly.

4. The pouring device for ductile iron pipes according to claim 3, characterized in that: The driving assembly includes a transmission roller (13), a second limiting seat (14) and a second motor (15). The transmission rollers (13) are symmetrically arranged on both sides of the casting cylinder (12) and are in contact with the casting cylinder. The transmission rollers (13) are connected to the second baffle (4) through the second limiting seat (14). The transmission rollers (13) are rotatably connected to the second limiting seat (14), and one end of the transmission rollers (13) is connected to the output end of the second motor (15).

5. The pouring device for ductile iron pipes according to claim 4, characterized in that: A feeding cylinder (16) is provided at one end of the casting cylinder (12), and the feeding cylinder (16) can be moved by a moving component.

6. The pouring device for ductile iron pipes according to claim 5, characterized in that: The moving assembly includes a first connecting rod (17), a second connecting rod (18) and an electric push rod (19). The first connecting rod (17) is installed on one side of the feeding barrel (16). The first connecting rod (17) is slidably connected to the second connecting rod (18). The second connecting rod (18) is connected to a group of the first limiting seats (11). The electric push rod (19) is installed in the inner cavity of the second connecting rod (18), and the output end of the electric push rod (19) is connected to the first connecting rod (17).