CN215614991U - Liquid lifting structure for casting - Google Patents
Liquid lifting structure for casting Download PDFInfo
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- CN215614991U CN215614991U CN202122447388.8U CN202122447388U CN215614991U CN 215614991 U CN215614991 U CN 215614991U CN 202122447388 U CN202122447388 U CN 202122447388U CN 215614991 U CN215614991 U CN 215614991U
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Abstract
The utility model provides a liquid lifting structure for casting, which comprises a first liquid lifting piece, wherein a main channel and two branch channels are formed in the first liquid lifting piece, one end of the main channel is used for being communicated with a heat preservation furnace, the other end of the main channel is connected with the two branch channels, the two branch channels are symmetrical relative to the main channel, and the two branch channels are respectively used for being communicated with a cavity of a casting mold. According to the liquid lifting structure for casting, the main channel and the two branch channels are arranged on the first liquid lifting piece, and the two branch channels are communicated through the main channel, so that casting liquid synchronously rises or falls in the two branch channels, the casting quality can be better ensured, and the casting efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of heat preservation furnaces, and particularly relates to a liquid lifting structure for casting.
Background
The existing low-pressure casting technology is more mature and is mostly applied to the production of castings such as hubs, steering knuckles, motor housings and the like. During low-pressure casting production, dry compressed air is required to be introduced into a heat preservation furnace with molten metal, the molten metal rises through a liquid lifting pipe under the action of pressure to fill a cavity of a casting mold, the casting mold is cooled under the condition of continuously keeping the pressure after the cavity is filled with the molten metal, and after a casting is solidified, the pressure is removed, the casting is taken out, and the casting production is completed. In the low-pressure bilateral casting process, a structure with two independent liquid lifting pipes is generally adopted, liquid in a heat preservation furnace respectively enters a cavity of a casting mold from the two liquid lifting pipes, but the two relatively independent liquid lifting pipes have the phenomenon of asynchronous liquid lifting in the mold filling process, so that the quality of a casting is influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a liquid lifting structure for casting, and aims to solve the problem that the quality of a casting is influenced because the liquid lifting is asynchronous in the mold filling process of two relatively independent liquid lifting pipes due to the adoption of a double liquid lifting pipe structure in the conventional low-pressure bilateral casting process.
In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a liquid structure of rising for casting, includes first liquid piece of rising, has seted up main entrance and two branch passageways on the first liquid piece of rising, and the one end of main entrance is used for communicating with the heat preservation stove, and the other end of main entrance links to each other with two branch passageways, and two branch passageways are symmetrical for the main entrance, and two branch passageways are used for being linked together with casting die's die cavity.
In a possible implementation manner, the device further comprises a substrate, wherein a mounting groove is formed in the substrate, the first liquid lifting piece is arranged in the mounting groove, and the main channel end of the first liquid lifting piece protrudes out of the lower end face of the substrate.
In a possible implementation mode, the liquid-lifting device further comprises a supporting protective sleeve, the mounting groove is a stepped groove, the mounting groove is provided with a stepped surface, the supporting protective sleeve is inserted into the mounting groove, the upper portion of the supporting protective sleeve is erected on the stepped surface, the supporting protective sleeve is provided with a slot, and the first liquid-lifting piece is arranged in the slot.
In a possible implementation manner, two positioning inclined planes are arranged on the outer wall of the first liquid lifting piece, the two positioning inclined planes are symmetrically arranged on two side walls of the first liquid lifting piece, two supporting inclined planes are correspondingly arranged on the inner wall of the slot, and when the first liquid lifting piece is inserted into the slot, the two positioning inclined planes and the two supporting inclined planes are correspondingly attached one to one.
In a possible implementation mode, a supporting platform is arranged in the slot, the supporting platform is located at the lower end of the slot, a convex spigot is arranged at the lower end of the first liquid lifting piece, and the convex spigot is in lap joint with the supporting platform.
In a possible implementation mode, the liquid lifting device further comprises a cover plate, wherein two bosses and two bosses are arranged on the first liquid lifting piece, the branch channel is respectively communicated with the two bosses, a notch is formed in the supporting protective sleeve, two avoiding holes are formed in the cover plate, the cover plate is sleeved on the first liquid lifting piece, the two bosses are respectively arranged in the two avoiding holes, meanwhile, the cover plate is inserted into the notch and is connected with the supporting protective sleeve, and the cover plate is used for pressing the first liquid lifting piece in the supporting protective sleeve.
In a possible implementation mode, the main channel is communicated with the holding furnace through a liquid lifting pipe, two sprue sleeves and two sprue cups which are communicated with the sprue sleeves in a one-to-one correspondence mode are arranged in a bottom die of the casting die, one ends of the two sprue sleeves are communicated with the two branch channels respectively, the sprue cups are arranged at the other ends of the sprue sleeves, two side runners are arranged in side dies of the casting die and are communicated with the two sprue cups respectively, and the side runners are communicated with cavities of the casting die.
In a possible implementation manner, the device further comprises a second liquid lifting piece, wherein a central casting hole is formed in the second liquid lifting piece, the second liquid lifting piece can be inserted into the mounting groove, and the second liquid lifting piece is used for being replaced with the first liquid lifting piece.
In one possible implementation, the main channel is laid out in a Y-shape with the two branch channels.
In a possible implementation mode, the first liquid lifting piece is formed by butting two liquid lifting half pieces with the same structure, and a fire-resistant layer is arranged between the butting surfaces of the two liquid lifting half pieces.
Compared with the prior art, the realization mode is that the first liquid lifting piece is provided with a main channel and two branch channels, one end of the main channel is communicated with the heat preservation furnace, and casting liquid in the heat preservation furnace enters the first liquid lifting piece from the main channel; the other end of the main channel is divided into two branch channels, and the casting liquid entering from the main channel respectively leads to the cavity of the casting mould along the two branch channels. Because the two branch passages are communicated through the main passage, the casting liquid synchronously rises or falls in the two branch passages, the casting quality can be better ensured, and the casting efficiency is improved.
Drawings
FIG. 1 is a cross-sectional view of a first riser along an interface according to an embodiment of the utility model;
FIG. 2 is a schematic structural view of a support sleeve according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural diagram of a second lift element in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural view of a lift structure for casting according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is an enlarged view taken along line C in FIG. 6;
FIG. 8 is a schematic structural view of a second lift element in accordance with an embodiment of the present invention;
fig. 9 is a schematic use diagram of a lift structure for casting according to an embodiment of the present invention.
Description of reference numerals:
1. a first riser; 2. a support protective sleeve; 3. a branch channel; 4. a substrate; 5. a main channel; 6. a cover plate; 7. a second lift element; 8. a central casting hole; 9. an upper die; 10. side forms; 11. side pouring channels; 12. bottom die; 13. a riser tube; 14. a pouring cup; 15. a sprue bush; 16. a holding furnace; 101. a boss; 102. a male end; 103. positioning the inclined plane; 104. a butt joint surface; 201. a slot; 202. a support ramp; 203. a support table; 204. a notch; 401. mounting grooves; 402. a step surface.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1, a description will now be given of a liquid lifting structure for casting according to the present invention. The liquid lifting structure for casting comprises a first liquid lifting part 1, a main channel 5 and two branch channels 3 are formed in the first liquid lifting part 1, one end of the main channel 5 is used for being communicated with a heat preservation furnace 16, the other end of the main channel 5 is connected with the two branch channels 3, the two branch channels 3 are symmetrical relative to the main channel 5, and the two branch channels 3 are respectively used for being communicated with a cavity of a casting mold.
Compared with the prior art, the liquid lifting structure for casting provided by the utility model has the advantages that the first liquid lifting part 1 is provided with the main channel 5 and the two branch channels 3, one end of the main channel 5 is communicated with the heat preservation furnace 16, and casting liquid in the heat preservation furnace 16 enters the first liquid lifting part 1 from the main channel 5; the other end of the main channel 5 is divided into two branch channels 3, and the casting liquid entering from the main channel 5 respectively leads to the cavities of the casting mould along the two branch channels 3. Because the two branch passages 3 are communicated through the main passage 5, the casting liquid synchronously rises or falls in the two branch passages 3, the casting quality can be better ensured, and the casting efficiency is improved.
In the embodiment, in the low-pressure bilateral casting process, the first liquid lifting piece 1 is installed on the casting machine, and liquid is injected into a cavity of a casting mold through the two branch channels 3 of the first liquid lifting piece 1, so that bilateral casting synchronization is ensured.
In some embodiments, referring to fig. 1 to 6, the liquid-crystal display device further includes a substrate 4, a mounting groove 401 is provided on the substrate 4, the first liquid-lifting member 1 is provided in the mounting groove 401, and the end of the main channel 5 of the first liquid-lifting member 1 protrudes out of the lower end surface of the substrate 4.
In this embodiment, the substrate 4 may be formed by modifying a small bottom plate in a machine table of a split casting machine, and the substrate 4 is formed by forming the mounting groove 401 on the small bottom plate. On the board of casting machine was located to base plate 4, in first liter liquid 1 installation and base plate 4's mounting groove 401, make things convenient for first liter liquid 1 and casting machine's quick installation and dismantlement.
In some possible implementation manners, referring to fig. 1 to 6, the liquid-lifting device further includes a supporting protective sleeve 2, the mounting groove 401 is a stepped groove, the mounting groove 401 has a stepped surface 402, the supporting protective sleeve 2 is inserted into the mounting groove 401, the upper portion of the supporting protective sleeve 2 is set on the stepped surface 402, the supporting protective sleeve 2 is provided with a slot 201, and the first liquid-lifting piece 1 is disposed in the slot 201.
In this embodiment, the shape of mounting groove 401 is the same with the shape of supporting protective sheath 2, and the thickness of supporting protective sheath 2 is greater than the degree of depth of mounting groove 401 to supporting protective sheath 2 inserts and locates in mounting groove 401, and the lower extreme of supporting protective sheath 2 stretches out by mounting groove 401, is equipped with slot 201 on the supporting protective sheath 2, and first liter liquid spare 1 is located in slot 201.
In some embodiments, referring to fig. 1 to 6, two positioning inclined planes 103 are provided on an outer wall of the first liquid lifting piece 1, the two positioning inclined planes 103 are symmetrically provided on two side walls of the first liquid lifting piece 1, two supporting inclined planes 202 are correspondingly provided on an inner wall of the slot 201, and when the first liquid lifting piece 1 is inserted into the slot 201, the two positioning inclined planes 103 and the two supporting inclined planes 202 are correspondingly attached one to one.
In this embodiment, the first liquid lifting member 1 is provided with two positioning inclined planes 103, and the inner wall of the slot 201 is correspondingly provided with two supporting inclined planes 202. When the first liquid lifting piece 1 is inserted into the slot 201, the two supporting inclined planes 202 and the two positioning inclined planes 103 are in one-to-one corresponding contact, limit and support the first liquid lifting piece 1, and the first liquid lifting piece 1 is ensured to be fixed in the supporting and protecting sleeve 2 and cannot slide out of the slot 201 of the supporting and protecting sleeve 2.
In some embodiments, referring to fig. 1 to 6, a supporting platform 203 is disposed in the slot 201, the supporting platform 203 is located at a lower end of the slot 201, a male end 102 is disposed at a lower end of the first liquid lifting member 1, and the male end 102 overlaps the supporting platform 203.
In this embodiment, a support platform 203 is disposed in the slot 201 and at the lower end of the slot 201, and a male end 102 is disposed at the lower end of the first liquid lifting member 1. When the first liquid lifting element 1 is inserted into the slot 201, the male end 102 overlaps the support platform 203. The supporting platform 203 supports the first liquid lifting piece 1, the supporting platform 203 limits the first liquid lifting piece 1, and the first liquid lifting piece 1 is prevented from sliding out of the slot 201 of the supporting protective sleeve 2.
In some embodiments, referring to fig. 1 to 7, the liquid lifting device further includes a cover plate 6, two bosses 101 are disposed on the first liquid lifting member 1, the two branch passages 3 respectively lead to the two bosses 101, a notch 204 is disposed on the supporting protective sleeve 2, two avoiding holes are disposed on the cover plate 6, the cover plate 6 is sleeved on the first liquid lifting member 1, the two bosses 101 are respectively disposed in the two avoiding holes, meanwhile, the cover plate 6 is inserted into the notch 204 and connected to the supporting protective sleeve 2, and the cover plate 6 is used for pressing and fixing the first liquid lifting member 1 in the supporting protective sleeve 2.
In this embodiment, the first liquid lifting member 1 is provided with two bosses 101, the two branch passages 3 respectively lead to the two bosses 101, the cover plate 6 is provided with two avoiding holes, and the support protective sleeve 2 is provided with a notch 204. After the first liquid raising member 1 is inserted into the supporting and protecting sleeve 2, the cover plate 6 is placed on the first liquid raising member 1, at the moment, the two bosses 101 are respectively arranged in the two avoiding holes in a penetrating manner, and the peripheral edge of the cover plate 6 is provided with the notches 204. The cover plate 6 cooperates with the support ramp 202 and/or the support platform 203 to make the first liquid lifting element 1 be fixed in the slot 201 of the support sleeve 2. When first liter liquid spare 1 dismantles the change as needs, dismantle behind the apron 6, take out first liter liquid spare 1 alright, convenient and swift.
In some embodiments, referring to fig. 9, the main channel 5 is communicated with a holding furnace 16 through a riser pipe 13, two sprue sleeves 15 and two sprue cups 14 communicated with the sprue sleeves 15 in a one-to-one correspondence are arranged in a bottom die 12 of the casting die, one ends of the two sprue sleeves 15 are respectively communicated with the two branch channels 3, the sprue cup 14 is arranged at the other end of the sprue sleeve 15, two side runners 11 are arranged in a side die 10 of the casting die, the two side runners 11 are respectively communicated with the two sprue cups 14, and the side runners 11 are communicated with a cavity of the casting die.
In this embodiment, the casting mold includes an upper mold 9, a side mold 10 and a bottom mold 12, two sprue sleeves 15 and two sprue cups 14 communicated with the sprue sleeves 15 in a one-to-one correspondence are disposed in the bottom mold 12, two side runners 11 are disposed in the side mold 10, the two branch channels 3 are respectively connected to the two sprue sleeves 15, the sprue sleeves 15 are communicated with the sprue cups 14, the two sprue cups 14 are connected to the two side runners 11, and the two side runners 11 are both communicated with the cavity, so that two passages of the casting liquid to the cavity are formed.
The casting liquid in the holding furnace 16 enters the main channel 5 through the riser pipe 13 under the action of pressure, is divided at the joint of the main channel 5 and the branch channels 3, flows to different branch channels 3, then sequentially passes through the sprue bush 15, the sprue cup 14 and the side runner 11 which are communicated with the branch channels 3, and finally enters the cavity of the casting mold.
The low-pressure bilateral pouring process can also be called as a low-pressure central pouring liquid-separating forming process, and comprises the following process steps:
firstly, in a liquid lifting stage, dry air is introduced into a sealed heat preservation furnace 16, and casting liquid is pressed into a liquid lifting pipe 13 under the action of pressure;
in the liquid separation stage, along with the increase of pressure, the casting liquid starts to be separated from the main channel 5 and the two branch channels 3 in the first liquid lifting part 1, and respectively reaches a water inlet of a cavity of a casting die through a sprue bush 15, a sprue cup 14 and a side pouring gate 11;
in the mold filling stage, along with the increase of pressure, the casting liquid enters the cavity and fills the whole cavity;
step four, pressure maintaining, namely, rapidly increasing the pressure in a short time, keeping for a period of time after a certain pressure is reached, and solidifying and shrinking the casting liquid under the action of pressure and cooling in the step;
and fifthly, a pressure relief stage, namely relieving pressure after the sequential solidification is finished, opening the die and taking out the workpiece to finish casting.
In some embodiments, referring to fig. 4 to 8, the device further comprises a second liquid lifting piece 7, wherein a central casting hole 8 is formed in the second liquid lifting piece 7, the second liquid lifting piece 7 can be inserted into the installation groove 401, and the second liquid lifting piece 7 is used for replacing the first liquid lifting piece 1.
In this embodiment, the first and second liquid lifting members 1 and 7 are provided to be replaceable, so that both center casting and both side casting can be performed by only one casting machine. The shape of the second stalk 7 is the same as the shape of the mounting groove 401 on the base plate 4. When the bilateral casting is performed, the supporting and protecting jacket 2 is disposed in the mounting groove 401 of the substrate 4, and then the first liquid raising member 1 is mounted in the slot 201 of the supporting and protecting jacket 2. When the center casting is needed, the supporting protective sleeve 2 and the first liquid lifting piece 1 are detached, and then the second liquid lifting piece 7 is installed in the installation groove 401 of the substrate 4, so that the center casting can be realized, and the line can be conveniently and quickly changed.
In some embodiments, referring to fig. 3, a threaded hole is formed in the step surface 402, the second liquid lifting piece 7 is inserted into the mounting groove 401, the upper portion of the second liquid lifting piece 7 overlaps the step surface 402, and the second liquid lifting piece 7 is in threaded connection with the substrate 4 through the threaded hole in the step surface 402.
In this embodiment, the second liquid lifting piece 7 is provided with a connection threaded hole. When the second liquid lifting piece 7 is inserted into the mounting groove 401, the upper part of the second liquid lifting piece 7 is overlapped with the step surface 402, the connecting threaded hole is opposite to the threaded hole on the step surface 402 at the moment, and the connecting threaded hole and the threaded hole on the step surface 402 are simultaneously in threaded connection through a bolt, so that the second liquid lifting piece 7 is fixed.
In some embodiments, referring to fig. 1, the main channel 5 is laid out in a wye with the two branch channels 3.
In this embodiment, the first liquid raising member 1 is made of a refractory material,
In some embodiments, referring to fig. 1, the first lift element 1 is formed by butt-joining two lift halves of identical construction, with a refractory layer disposed between the butt-joined faces 104 of the two lift halves.
In this embodiment, the first lift element 1 is composed of two lift halves of identical construction, the abutment surface 104 of the two lift halves also being referred to as the parting surface. The refractory layer is made of refractory mortar, the refractory mortar is smeared on the butt joint surfaces 104 of the two liquid lifting half pieces during assembly, and then the butt joint surfaces 104 of the two liquid lifting half pieces are mutually attached and assembled to form the integral first liquid lifting piece 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A liquid lifting structure for casting, comprising:
the casting mold comprises a first liquid lifting piece, wherein a main channel and two branch channels are formed in the first liquid lifting piece, one end of the main channel is used for being communicated with a heat preservation furnace, the other end of the main channel is connected with the two branch channels, the two branch channels are symmetrical relative to the main channel, and the two branch channels are used for being communicated with a cavity of a casting mold.
2. A lift structure for pouring according to claim 1, further comprising a base plate, wherein a mounting groove is provided in said base plate, said first lift member is provided in said mounting groove, and a main passage end of said first lift member protrudes from a lower end surface of said base plate.
3. The lift structure for casting according to claim 2, further comprising a supporting protective sleeve, wherein the mounting groove is a stepped groove, the mounting groove has a stepped surface, the supporting protective sleeve is inserted into the mounting groove, the upper portion of the supporting protective sleeve is erected on the stepped surface, a slot is formed in the supporting protective sleeve, and the first lift piece is arranged in the slot.
4. A liquid lifting structure for casting as claimed in claim 3, wherein the first liquid lifting member is provided with two positioning slopes on its outer wall, the two positioning slopes are symmetrically provided on the two side walls of the first liquid lifting member, the inner wall of the slot is provided with two supporting slopes correspondingly, and when the first liquid lifting member is inserted into the slot, the two positioning slopes and the two supporting slopes are fitted one to one.
5. A liquid lifting structure for casting as claimed in claim 3, wherein a support platform is provided in the socket, the support platform is located at the lower end of the socket, and the lower end of the first liquid lifting member is provided with a male end, and the male end is overlapped with the support platform.
6. The liquid lifting structure for casting as defined in claim 5 or claim 4, further comprising a cover plate, wherein two bosses are disposed on the first liquid lifting member, the two branch passages respectively lead to the two bosses, a notch is disposed on the supporting protection sleeve, two avoiding holes are disposed on the cover plate, the cover plate is sleeved on the first liquid lifting member, the two bosses are disposed in the two avoiding holes, and meanwhile, the cover plate is inserted in the notch and connected to the supporting protection sleeve, and the cover plate is used for pressing and fixing the first liquid lifting member in the supporting protection sleeve.
7. The liquid lifting structure for casting according to claim 1, wherein the main channel is communicated with the holding furnace through a liquid lifting pipe, two sprue bushes and two sprue cups communicated with the sprue bushes in a one-to-one correspondence are provided in a bottom mold of the casting mold, one ends of the two sprue bushes are respectively communicated with the two branch channels, the sprue cup is provided at the other end of the sprue bush, two side runners are provided in a side mold of the casting mold, the two side runners are respectively communicated with the two sprue cups, and the side runners lead to a cavity of the casting mold.
8. A riser structure for casting as claimed in claim 3, further comprising a second riser having a central casting aperture, the second riser being insertable in the mounting trough, the second riser being adapted for replacement with the first riser.
9. A riser structure for casting as claimed in claim 1, wherein the main channel runs in a Y-shape with both of the branch channels.
10. A liquid lifting structure for pouring according to claim 9, wherein said first liquid lifting member is formed by butt-joining two liquid lifting half members of the same structure, and a refractory layer is provided between butt-joined faces of the two liquid lifting half members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122447388.8U CN215614991U (en) | 2021-10-11 | 2021-10-11 | Liquid lifting structure for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122447388.8U CN215614991U (en) | 2021-10-11 | 2021-10-11 | Liquid lifting structure for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215614991U true CN215614991U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122447388.8U Active CN215614991U (en) | 2021-10-11 | 2021-10-11 | Liquid lifting structure for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215614991U (en) |
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2021
- 2021-10-11 CN CN202122447388.8U patent/CN215614991U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: BAODING LIZHONG DONG'AN LIGHT ALLOY PARTS CO.,LTD. Assignor: BAODING LIZHONG WHEEL MANUFACTURING Co.,Ltd. Contract record no.: X2023990000004 Denomination of utility model: Lifting structure for casting Granted publication date: 20220125 License type: Common License Record date: 20230112 |