CN216758122U - Transition pipe for low pressure casting - Google Patents
Transition pipe for low pressure casting Download PDFInfo
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- CN216758122U CN216758122U CN202123217333.4U CN202123217333U CN216758122U CN 216758122 U CN216758122 U CN 216758122U CN 202123217333 U CN202123217333 U CN 202123217333U CN 216758122 U CN216758122 U CN 216758122U
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- pressure casting
- low pressure
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Abstract
The utility model provides a transition pipe for low-pressure casting, and relates to the technical field of low-pressure casting. The transition pipe for low-pressure casting comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is connected with a furnace cover of a pouring furnace, and the inner cylinder is matched with a liquid lifting pipe; the inner cylinder is sleeved in the outer cylinder, and the inner cylinder is detachably connected with the outer cylinder; the outer cylinder and the inner cylinder have the same length. The technical effect of convenient aluminum freezing cleaning is achieved.
Description
Technical Field
The utility model relates to the technical field of low-pressure casting, in particular to a transition pipe for low-pressure casting.
Background
Aluminum and aluminum alloy low-pressure casting is a casting technology between gravity casting and pressure casting, and is commonly used for producing aluminum casting products with higher requirements, such as automobile hubs, motorcycle hubs, instruments, textile machinery, aerospace and the like.
In common low pressure casting production, the lift tube is located in the furnace, and when the casting mold is simple, the casting mold can be directly aligned with the furnace mouth; however, when the casting mold is complicated or special treatment requirements are imposed on the mold-filling molten aluminum, a transition section needs to be added outside the casting furnace for the riser tube to extend to the casting mold. The traditional transition structure is connected with the casting mold in sequence through a liquid lifting pipe, an intermediate pipe, a vacuum cup and a sprue bush to reach the required height, and then pouring is completed.
At present, the structure has a great defect, if the heat preservation measures are not complete, when the casting is carried out at a lower temperature, the phenomenon of aluminum freezing is easily formed at the transition section due to the temperature reduction of the part outside the furnace, and in the continuous casting operation process, the inner wall of the transition structure outside the furnace is usually adhered with an aluminum skin, and the aluminum skin is brought into a casting mold by a subsequent mold filling melt, so that the melt components are uneven, the product performance is further reduced, and the traditional transition structure is troublesome to replace and clean the aluminum freezing.
Therefore, it is an important technical problem to be solved by those skilled in the art to provide a transition pipe for low pressure casting that is easy to clean.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a transition pipe for low-pressure casting, which is used for relieving the technical problem of inconvenient cleaning in the prior art.
The embodiment of the utility model provides a transition pipe for low-pressure casting, which comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is connected with a furnace cover of a pouring furnace, and the inner cylinder is matched with a liquid lifting pipe;
the inner cylinder is sleeved in the outer cylinder, and the inner cylinder is detachably connected with the outer cylinder;
the outer cylinder and the inner cylinder are the same in length.
The embodiment of the utility model provides a possible implementation mode, wherein the inner cylinder adopts a sand core cylinder.
Embodiments of the present invention provide a possible implementation manner, wherein the transition pipe for low-pressure casting further includes a sealing heat insulation pad;
the sealing heat insulation pad is arranged at the end part of the inner cylinder.
The embodiment of the present invention provides a possible implementation manner, wherein the sealing heat insulating pad is disposed at both ends of the inner cylinder.
The embodiment of the utility model provides a possible implementation manner, wherein the sealed heat insulation pad adopts a ceramic fiber pad.
The embodiment of the utility model provides a possible implementation mode, wherein the outer cylinder comprises a cylinder body and a connecting seat;
the connecting seat is fixedly connected with the cylinder body.
The embodiment of the utility model provides a possible implementation mode, wherein the connecting seat is provided with a connecting hole, and the axis of the connecting hole is parallel to the axis of the cylinder body;
the connecting seat passes through the connecting hole through a threaded part and is connected with the furnace cover of the pouring furnace.
The embodiment of the utility model provides a possible implementation manner, wherein the threaded part adopts a bolt.
The embodiment of the utility model provides a possible implementation mode, wherein the outer cylinder is made of steel.
The embodiment of the present invention provides a possible implementation manner, wherein the inner wall of the inner cylinder is coated with a fire-resistant coating.
Has the advantages that:
the utility model provides a transition pipe for low-pressure casting, which comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is connected with a furnace cover of a pouring furnace, and the inner cylinder is matched with a liquid lifting pipe; the inner cylinder is sleeved in the outer cylinder, and the inner cylinder is detachably connected with the outer cylinder; the outer cylinder and the inner cylinder have the same length.
When specifically using, in stalk exit, the staff links together urceolus and pouring furnace bell, then preheat the inner tube according to the demand, before the pouring, place the inner tube from upper portion and get into in the outer tube, accomplish the equipment of transition pipe, then place the casting mould on transition pipe upper portion, compress tightly the contact surface between casting mould and the transition pipe, confirm sealed back, begin the pouring, the pouring is accomplished the casting mould and is taken off the back, utilize anchor clamps to take out the inner tube, then adopt new inner tube to repeat above-mentioned process and continue the pouring, through such setting, the frozen aluminium in the clearance inner tube that can be convenient, and, through changing the clearance by the mould, avoid the influence of aluminium skin to the fuse-element quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic illustration of a transition tube for low pressure casting according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a transition duct for low pressure casting provided by an embodiment of the present invention (with the sealed insulation blanket not shown).
Icon:
100-outer cylinder; 110-a barrel body; 120-a connecting seat; 121-connecting hole;
200-an inner cylinder;
300-sealing the heat insulation pad.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate 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 specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 and 2, an embodiment of the present invention provides a transition pipe for low pressure casting, including an outer cylinder 100 for connecting with a furnace cover of a pouring furnace and an inner cylinder 200 for cooperating with a lift pipe; the inner cylinder 200 is sleeved in the outer cylinder 100, and the inner cylinder 200 is detachably connected with the outer cylinder 100; the outer tub 100 and the inner tub 200 have the same length.
When the pouring device is used specifically, at the outlet of the liquid lifting pipe, a worker connects the outer barrel 100 with the furnace cover of the pouring furnace together, then preheats the inner pipe as required, before pouring, the inner pipe is placed into the outer barrel from the upper part, the assembly of the transition pipe is completed, then the casting mold is placed on the upper part of the transition pipe, the contact surface between the casting mold and the transition pipe is compressed, after the sealing is confirmed, pouring is started, after the casting mold is taken down, the inner barrel 200 is taken out by using a clamp, then the pouring is continued by repeating the above processes by adopting the new inner barrel 200, and through the arrangement, the frozen aluminum in the inner barrel 200 can be conveniently cleaned.
Specifically, through the arrangement of the outer cylinder 100 and the inner cylinder 200, and the detachable connection of the inner cylinder 200 and the outer cylinder 100, after the pouring is completed, the inner cylinder 200 can be taken down, so that the work of cleaning the transition pipe from the frozen aluminum can be completed without replacing the outer cylinder 100. Whereas in the prior art, the entire transition pipe needs to be replaced.
Wherein, the length of the outer cylinder 100 is consistent with that of the inner cylinder 200, thereby ensuring sealing and avoiding leakage of aluminum liquid in the production process.
In an alternative of this embodiment, the inner cylinder 200 is a sand core cylinder.
Specifically, the inner cylinder 200 can be a sand core cylinder, the manufacturing cost of the inner cylinder 200 can be greatly reduced by adopting the sand core cylinder, after the frozen aluminum appears on the inner cylinder 200, the inner cylinder 200 can be directly broken to clean the frozen aluminum, the broken sand core cylinder is made into cores again, and the production and manufacturing cost is greatly reduced.
It should also be noted that the temperature of the inner core barrel 200 of the sand core can be stabilized by preheating or storing the inner barrel 200 at room temperature, and the temperature of the pipe wall of each mold aluminum liquid in contact with the transition pipe section is similar, thereby ensuring the temperature of the aluminum liquid entering the casting mold to be stable. Namely, the sand core barrel can be replaced mold by mold, and the temperature of the inner barrel 200 is ensured, so that the temperature of the aluminum liquid filled into the casting mold is stable.
Referring to fig. 1 and 2, in an alternative to the present embodiment, the transition duct for low pressure casting further comprises a sealed insulation pad 300; the end where the sealed insulation pad 300 is disposed.
Specifically, the end of the inner cylinder 200 is provided with the sealed heat insulation pad 300, and the sealing between the inner cylinder 200 and the lift pipe is ensured by the arrangement of the sealed heat insulation pad 300, so that the leakage of aluminum liquid is avoided.
Referring to fig. 1 and 2, in an alternative embodiment, both ends of the inner tube 200 are provided with a sealing heat-insulating mat 300.
Specifically, the two ends of the inner cylinder 200 are provided with the sealed heat insulation pads 300, so that the sealing between the lift pipe and the casting performance and the inner cylinder 200 is ensured, and the leakage of aluminum liquid is avoided.
In an alternative of this embodiment, the sealed insulation pad 300 is a ceramic fiber pad.
Specifically, the sealing heat insulating pad 300 may be a ceramic fiber pad, and in addition, a person skilled in the art may select a material of the sealing heat insulating pad 300 according to actual requirements, which is not described herein again.
Referring to fig. 1 and 2, in an alternative of the present embodiment, an outer tub 100 includes a tub 110 and a coupling seat 120; the connecting base 120 is fixedly connected with the barrel 110.
Specifically, the barrel 110 and the connecting seat 120 are fixedly connected together, the connecting seat 120 is sleeved outside the barrel 110, and the connecting seat 120 can be connected with a furnace cover of the casting furnace.
Specifically, the connecting seat 120 is welded to the barrel 110.
Referring to fig. 1 and 2, in an alternative of this embodiment, a connection hole 121 is formed on the connection seat 120, and an axis of the connection hole 121 is parallel to an axis of the barrel 110; the connecting base 120 is connected with the furnace cover of the pouring furnace through a connecting hole 121 by a screw.
Specifically, a connecting hole 121 is formed in the connecting seat 120, and the connecting seat 120 and the furnace cover of the casting furnace are connected through a threaded member, wherein the threaded end of the threaded member can penetrate through the connecting hole 121 and be locked on the furnace cover of the casting furnace.
In an alternative of this embodiment, the screw is a bolt.
Specifically, the screw can adopt the bolt, and in addition, technical personnel in the field can set up the size and the dimension of connecting hole 121 and the size and the dimension of screw by oneself according to actual need, as long as can with pouring furnace bell adaptation can, no longer describe herein.
In an alternative embodiment, the outer cylinder 100 is made of steel.
Specifically, the outer cylinder 100 may be made of steel, and in addition, those skilled in the art may use the material of the outer cylinder 100 according to actual requirements, which is not described herein again.
Wherein the outer cylinder 100 serves to protect and support the inner cylinder 200 and to withstand the pressure of the upper mold.
In an alternative to this embodiment, the inner wall of the inner barrel 200 is coated with a fire resistant coating.
Specifically, the inner wall of the inner cylinder 200 is coated with a refractory coating, so that the situation that gravel of the inner cylinder 200 enters a product due to the fact that the inner wall of the inner cylinder 200 is damaged by molten aluminum is avoided.
In addition, the type of the fire-resistant coating can be selected by those skilled in the art according to actual needs, and will not be described herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A transition tube for low pressure casting, comprising: an outer cylinder (100) used for being connected with a furnace cover of the pouring furnace and an inner cylinder (200) used for being matched with the liquid lifting pipe;
the inner cylinder (200) is sleeved in the outer cylinder (100), and the inner cylinder (200) is detachably connected with the outer cylinder (100);
the outer cylinder (100) and the inner cylinder (200) have the same length.
2. The transition pipe for low pressure casting according to claim 1, wherein the inner barrel (200) is a sand core barrel.
3. The transition duct for low pressure casting of claim 2, further comprising a sealed insulation pad (300);
the sealing and heat insulating pad (300) is disposed at an end of the inner cylinder (200).
4. The transition duct for low pressure casting according to claim 3, characterized in that both ends of the inner barrel (200) are provided with the sealed heat insulating mat (300).
5. The transition duct for low pressure casting of claim 3, characterized in that the sealed insulation mat (300) is a ceramic fiber mat.
6. The transition tube for low pressure casting according to any one of claims 1 to 5, wherein the outer barrel (100) comprises a barrel (110) and a connecting socket (120);
the connecting seat (120) is fixedly connected with the cylinder body (110).
7. The transition pipe for low-pressure casting according to claim 6, wherein the connecting seat (120) is provided with a connecting hole (121), and the axis of the connecting hole (121) is parallel to the axis of the barrel body (110);
the connecting seat (120) passes through the connecting hole (121) through a screw thread piece to be connected with the furnace cover of the pouring furnace.
8. The transition tube for low pressure casting of claim 7, wherein the threaded member is a bolt.
9. The transition tube for low pressure casting according to any one of claims 1 to 5, characterized in that the outer cylinder (100) is made of steel.
10. The transition pipe for low pressure casting according to any one of claims 1 to 5, characterized in that the inner wall of the inner barrel (200) is coated with a refractory coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123217333.4U CN216758122U (en) | 2021-12-20 | 2021-12-20 | Transition pipe for low pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123217333.4U CN216758122U (en) | 2021-12-20 | 2021-12-20 | Transition pipe for low pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216758122U true CN216758122U (en) | 2022-06-17 |
Family
ID=81966708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123217333.4U Active CN216758122U (en) | 2021-12-20 | 2021-12-20 | Transition pipe for low pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216758122U (en) |
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2021
- 2021-12-20 CN CN202123217333.4U patent/CN216758122U/en active Active
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