CN113857440A - Casting device of high temperature and high pressure resistant pipeline connecting piece - Google Patents
Casting device of high temperature and high pressure resistant pipeline connecting piece Download PDFInfo
- Publication number
- CN113857440A CN113857440A CN202111012074.3A CN202111012074A CN113857440A CN 113857440 A CN113857440 A CN 113857440A CN 202111012074 A CN202111012074 A CN 202111012074A CN 113857440 A CN113857440 A CN 113857440A
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- sand
- box
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- plate
- mold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/02—Compacting by pressing devices only
- B22C15/08—Compacting by pressing devices only involving pneumatic or hydraulic mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C13/00—Moulding machines for making moulds or cores of particular shapes
- B22C13/10—Moulding machines for making moulds or cores of particular shapes for pipes or elongated hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/082—Sprues, pouring cups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention provides a casting device of a high-temperature and high-pressure resistant pipeline connecting piece, which comprises a workbench, wherein a movable mould box, a fixed mould box, a mould opening and closing device, a first sand pressing device, a second sand pressing device, a sand scraping device and a pouring device are arranged on the workbench; the first sand pressing device is provided with a first sand pressing plate, the second sand pressing device is provided with a second sand pressing plate, the sand scraping device is provided with a sand scraping plate, when the movable mold box and the fixed mold box are in a mold opening state, the movable mold box is positioned right below the first sand pressing plate, the fixed mold box is positioned right below the second sand pressing plate, when the movable mold box and the fixed mold box are in a mold closing state, the movable mold box is attached right above the fixed mold box, and the mold opening and closing device drives the movable mold box to switch between the mold opening state and the mold closing state; the pouring device has a ladle and a pouring gate. According to the invention, the automatic die opening and closing, the automatic molding and the automatic pouring control are respectively realized by the die opening and closing device, the sand pressing device, the pouring device and the sand scraping device, and the planeness of the parting surface is improved, so that the casting efficiency and the rough blank precision are greatly improved.
Description
Technical Field
The invention belongs to the technical field of pipeline fitting manufacturing, and particularly relates to a casting device for a high-temperature and high-pressure resistant pipeline connecting piece.
Background
The high-temperature and high-pressure resistant pipeline is widely applied to various industries, and the pipeline is a straight pipe, so that the pipeline is required to be connected together by matching with various connecting pieces when being installed and used, and a complete pipeline is formed. Since the connecting member itself is also a tubular structure, it is necessary to obtain a rough blank through a casting process, and then to turn the rough blank into a final product through a finishing process. The casting process flow is as follows:
after the molding sand is selected, a pair of molds 100 and core boxes 400 are respectively manufactured according to the product size, and cores 200 are manufactured by the core boxes 400. The molds 100 are placed in the corresponding mold boxes, respectively, and the center section of the mold 100 is ensured to be flush with the parting surfaces of the mold boxes, and then molding sand is filled into the mold boxes and compacted. After the molding is completed, the mold 100 is taken out, cavities are formed in the mold boxes, a sprue is formed in one of the mold boxes, and the mold core 200 is placed in the cavity. And (4) injecting molten metal into the pouring gate after the two mould boxes are closed, cooling after the pouring is finished, and removing the molding sand to obtain a rough blank.
The existing casting process has a manual operation link, so that the efficiency is low, the precision of a rough blank is not high, and a great deal of inconvenience is brought to subsequent finish machining.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the casting device for the high-temperature and high-pressure resistant pipeline connecting piece is capable of automatically completing the processes of molding, die opening and closing and pouring, and greatly improving the casting efficiency and the rough blank precision.
The invention is realized by the following steps: a casting device of a high-temperature and high-pressure resistant pipeline connecting piece comprises a workbench, wherein a movable mould box, a fixed mould box, a mould opening and closing device, a first sand pressing device, a second sand pressing device, a sand scraping device and a pouring device are arranged on the workbench;
the first sand-pressing device is provided with a first sand-pressing plate, the second sand-pressing device is provided with a second sand-pressing plate, and the first sand-pressing plate and the second sand-pressing plate are arranged to be capable of moving in a reciprocating mode in the direction perpendicular to the workbench; the sand scraping device is provided with a sand scraping plate which is arranged to be capable of reciprocating in a direction parallel to the workbench and sweeping the upper edges of the movable mould box and the fixed mould box in a mould opening state in the moving process;
when the movable mold box and the fixed mold box are in a mold opening state, the movable mold box is positioned under the first sand pressing plate, the fixed mold box is positioned under the second sand pressing plate, when the movable mold box and the fixed mold box are in a mold closing state, the movable mold box is attached to the position over the fixed mold box, and the mold opening and closing device drives the movable mold box to switch between a mold opening state and a mold closing state; the pouring device is provided with a pouring ladle and a pouring gate, the pouring gate is arranged to be aligned with the pouring gate after the movable mould box and the fixed mould box are assembled, and the pouring ladle is arranged to be capable of pouring molten metal to the pouring gate.
Further, the first sand pressing device further comprises a first hydraulic cylinder, a push rod of the first hydraulic cylinder is connected with the first sand pressing plate, the second sand pressing device further comprises a second hydraulic cylinder, and a push rod of the second hydraulic cylinder is connected with the second sand pressing plate.
Further, the mold opening and closing device comprises a turnover motor and a rotating shaft, the turnover motor is provided with a motor shaft, the movable mold box is provided with a first connecting part, and the fixed mold box is provided with a second connecting part;
the second connecting portion with the pivot forms the rotation and is connected, first connecting portion, the motor shaft all with the pivot forms antitorque connection.
Furthermore, the sand scraping device further comprises a movable plate and an air cylinder, linear bearings are installed at two ends of the movable plate, guide rods are installed in the linear bearings in a sliding mode and fixed on the workbench through fixing seats, a push rod of the air cylinder is connected with the movable plate, and the sand scraping plates are symmetrically installed on the movable plate.
Further, the sand scraping plate is a rubber plate or a nylon plate.
Further, a positioning mechanism for the model is arranged on the workbench.
The invention has the following beneficial effects:
1. according to the invention, the automatic mold opening and closing control of the two mold boxes is realized by the mold opening and closing device, the automatic molding control is realized by the sand pressing device, the automatic pouring control is realized by the pouring device, and the flatness of the parting surface is realized by the sand scraping device, so that the casting efficiency and the rough blank precision are greatly improved.
2. According to the invention, the positioning mechanism is utilized to realize the rapid positioning of the model in the corresponding mould box, so that the casting efficiency and the positioning precision of the model are improved.
Drawings
FIG. 1 is a schematic diagram of the construction of a pattern, core box and core in a connector casting process;
FIG. 2 is a perspective view of a preferred embodiment of the present invention in an open mold position;
FIG. 3 is a front view of the structure of the embodiment shown in FIG. 2;
FIG. 4 is a sectional view of the structure taken along line A-A in FIG. 3;
FIG. 5 is a sectional view of the embodiment of FIG. 4 in a clamped casting position;
FIG. 6 is a sectional view of the structure taken along line B-B in FIG. 5;
FIG. 7 is a flow chart of a casting process of the connecting piece of the invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 2 to 7, the casting device for the high-temperature and high-pressure resistant pipeline connecting piece comprises a workbench 1, wherein a movable mold box 2, a fixed mold box 4, a mold opening and closing device, a first sand pressing device, a second sand pressing device, a sand scraping device and a pouring device are arranged on the workbench 1.
The first sand pressing device is provided with a first sand pressing plate 8 and a first hydraulic cylinder 9, and a push rod of the first hydraulic cylinder 9 is connected with the first sand pressing plate 8. The second sand pressing device is provided with a second sand pressing plate 10 and a second hydraulic cylinder 11, and a push rod of the second hydraulic cylinder 11 is connected with the second sand pressing plate 10. The first hydraulic cylinder 9 and the second hydraulic cylinder 11 are both upside down mounted on a frame mounted on the work table 1, thereby driving the first sand-pressing plate 8 and the second sand-pressing plate 10 to reciprocate in a direction perpendicular to the work table 1.
The sand scraping device is provided with a sand scraping plate 6, a movable plate 13 and a cylinder 5, wherein the sand scraping plate 6 is symmetrically arranged on the movable plate 13, linear bearings are arranged at two ends of the movable plate 13, a guide rod 3 is slidably arranged in the linear bearings, the guide rod 3 is fixed on a workbench 1 through a fixed seat 12, and a push rod of the cylinder 5 is connected with the movable plate 13 so as to drive the sand scraping plate 6 to reciprocate in a direction parallel to the workbench 1 and sweep the upper edges of a movable mould box 2 and a fixed mould box 4 which are in a mould opening state in the moving process. The scraping plate 6 is a rubber plate or a nylon plate, and when the scraping plate 6 sweeps the upper edge of the mould box, the scraping plate and the mould 100 cannot be scratched.
The mold opening and closing device comprises a turnover motor 7 and a rotating shaft 15, wherein the turnover motor 7 is provided with a motor shaft, the movable mold box 2 is provided with a first connecting part, and the fixed mold box 4 is provided with a second connecting part; the second connecting portion forms the rotation with pivot 15 and is connected, and first connecting portion, motor shaft all form antitorque with pivot 15 and are connected.
When the movable mold box 2 and the fixed mold box 4 are in a mold opening state, the movable mold box 2 is located under the first sand pressing plate 8, the fixed mold box 4 is located under the second sand pressing plate 10, when the movable mold box 2 and the fixed mold box 4 are in a mold closing state, the movable mold box 2 is attached to the fixed mold box 4, and the mold opening and closing device drives the movable mold box 2 to be switched between a mold opening state and a mold closing state.
The pouring device is provided with a pouring hydraulic cylinder, a pouring gate cylinder, a pouring ladle 17 and a pouring gate 16, wherein the pouring hydraulic cylinder, the pouring gate cylinder and the pouring ladle 17 are all installed on the frame, a push rod of the pouring gate cylinder is connected with the pouring gate 16 to drive the pouring gate to move to a position aligned with the pouring gate, and a push rod of the pouring hydraulic cylinder is connected with the pouring ladle 17 to drive the pouring ladle to tilt around a shaft, so that molten metal is poured into the pouring gate 16 aligned with the pouring gate.
In order to fix the model 100 more quickly, the table 1 is provided with a positioning mechanism for the model 100, which is a positioning hole or a positioning protrusion.
The working principle and the process are as follows:
firstly, the fixed mold box 2 and the fixed mold box 4 are controlled to be in a mold opening state, the mold 100 is respectively placed in the two mold boxes, and positioning is carried out by utilizing a positioning mechanism. It should be noted that the mold box 100 is provided with a support pillar 101 and a runner portion 102, and the support pillar 100 can be positioned by matching with the positioning hole and also provides support during sand pressing. After the sand pressing device is placed, the molding sand is filled in the mold box, the sand pressing device is controlled to compact the molding sand, and after the sand pressing device is reset, the sand scraping device is used for scraping the excessive molding sand to enable the parting surface to keep flat. And taking out the mold 100 after the sand pressing is finished, forming a mold cavity in the mold box, and forming a sprue in the mold cavity in the movable mold box 2. And (3) putting the mold core 200 into the mold cavity, and controlling the mold opening and closing device to close the movable mold box 2 and the fixed mold box 4, so that the two mold cavities form a pouring cavity. And controlling a pouring device to pour the molten metal from the pouring gate, cooling for a period of time after pouring is finished to solidify the molten metal, finally opening the mold, and removing the molding sand to obtain a rough blank.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The casting device for the high-temperature and high-pressure resistant pipeline connecting piece is characterized by comprising a workbench (1), wherein a movable mould box (2), a fixed mould box (4), a mould opening and closing device, a first sand pressing device, a second sand pressing device, a sand scraping device and a pouring device are arranged on the workbench (1);
the first sand-pressing device is provided with a first sand-pressing plate (8), the second sand-pressing device is provided with a second sand-pressing plate (10), and the first sand-pressing plate (8) and the second sand-pressing plate (10) are arranged to be capable of moving in a reciprocating mode in a direction perpendicular to the workbench (1); the sand scraping device is provided with a sand scraping plate (6), the sand scraping plate (6) is arranged to be capable of moving in a reciprocating mode in a direction parallel to the workbench (1), and the upper edges of the movable mould box (2) and the fixed mould box (4) in a mould opening state are swept in the moving process;
when the movable mould box (2) and the fixed mould box (4) are in a mould opening state, the movable mould box (2) is positioned under the first sand pressing plate (8), the fixed mould box (4) is positioned under the second sand pressing plate (10), when the movable mould box (2) and the fixed mould box (4) are in a mould closing state, the movable mould box (2) is attached to the position over the fixed mould box (4), and the mould opening and closing device drives the movable mould box (2) to switch between the mould opening state and the mould closing state; the pouring device is provided with a pouring ladle (17) and a pouring gate (16), the pouring gate (16) is arranged to be aligned with a pouring gate after the movable mould box (2) and the fixed mould box (4) are closed, and the pouring ladle (17) is arranged to be capable of pouring molten metal to the pouring gate (16).
2. The casting device of a high temperature and high pressure resistant pipeline connector according to claim 1, wherein the first sand-pressing device further comprises a first hydraulic cylinder (9), a push rod of the first hydraulic cylinder (9) is connected with the first sand-pressing plate (8), the second sand-pressing device further comprises a second hydraulic cylinder (11), and a push rod of the second hydraulic cylinder (11) is connected with the second sand-pressing plate (10).
3. The casting device of the high-temperature and high-pressure resistant pipeline connecting piece is characterized in that the mold opening and closing device comprises a turnover motor (7) and a rotating shaft (15), the turnover motor (7) is provided with a motor shaft, the movable mold box (2) is provided with a first connecting part, and the fixed mold box (4) is provided with a second connecting part;
the second connecting portion with pivot (15) form the rotation and are connected, first connecting portion, the motor shaft all with pivot (15) form antitorque connection.
4. The casting device of the high-temperature and high-pressure resistant pipeline connecting piece according to claim 1, wherein the scraping device further comprises a moving plate (13) and a cylinder (5), linear bearings are installed at two ends of the moving plate (13), guide rods (3) are installed in the linear bearings in a sliding mode, the guide rods (3) are fixed on the workbench (1) through fixing seats (12), push rods of the cylinder (5) are connected with the moving plate (13), and the scraping plates (6) are symmetrically installed on the moving plate (13).
5. The casting device of the high-temperature and high-pressure resistant pipeline connecting piece according to claim 1, wherein the sand scraping plate (6) is a rubber plate or a nylon plate.
6. A casting device for high temperature and high pressure resistant pipe connection according to claim 1, characterized in that the working table (1) is provided with a positioning mechanism for the model (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111012074.3A CN113857440A (en) | 2021-08-31 | 2021-08-31 | Casting device of high temperature and high pressure resistant pipeline connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111012074.3A CN113857440A (en) | 2021-08-31 | 2021-08-31 | Casting device of high temperature and high pressure resistant pipeline connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113857440A true CN113857440A (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111012074.3A Pending CN113857440A (en) | 2021-08-31 | 2021-08-31 | Casting device of high temperature and high pressure resistant pipeline connecting piece |
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| CN (1) | CN113857440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115770858A (en) * | 2022-11-22 | 2023-03-10 | 无锡中叶合金制品有限公司 | CT belt pulley casting molding sand filling device |
| CN115889705A (en) * | 2022-11-22 | 2023-04-04 | 无锡中叶合金制品有限公司 | CT machine large synchronous belt pulley casting system |
-
2021
- 2021-08-31 CN CN202111012074.3A patent/CN113857440A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115770858A (en) * | 2022-11-22 | 2023-03-10 | 无锡中叶合金制品有限公司 | CT belt pulley casting molding sand filling device |
| CN115889705A (en) * | 2022-11-22 | 2023-04-04 | 无锡中叶合金制品有限公司 | CT machine large synchronous belt pulley casting system |
| CN115770858B (en) * | 2022-11-22 | 2023-11-03 | 无锡中叶合金制品有限公司 | CT belt pulley casting sand filling device |
| CN115889705B (en) * | 2022-11-22 | 2024-01-09 | 无锡中叶合金制品有限公司 | CT machine large synchronous pulley casting system |
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