CN209918817U - Wax mould - Google Patents
Wax mould Download PDFInfo
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- CN209918817U CN209918817U CN201920107597.8U CN201920107597U CN209918817U CN 209918817 U CN209918817 U CN 209918817U CN 201920107597 U CN201920107597 U CN 201920107597U CN 209918817 U CN209918817 U CN 209918817U
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- mold
- stripping
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- core liner
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Abstract
The utility model discloses a wax matrix mould for make the wax matrix of slim type, fit last mould on the lower mould, locate the core lining of lower mould intracavity, locate the core lining outer wall be used for connecting the connection structure of the wax matrix after the shaping, stretch in the core lining inner chamber be used for with the core lining and with the wax matrix that the core lining is connected take out the stripping mechanism in the die cavity of lower mould including die cavity and the same lower mould of wax matrix appearance shape. The utility model discloses a wax matrix mould, through add the core lining in the die cavity of lower mould, during preparation wax matrix, with the wax material pouring to the appearance intracavity between core lining and the lower mould, the outer wall of core lining is equipped with the connection structure who is used for connecting the wax matrix after the shaping, after the wax matrix shaping, stretch out in the die cavity of lower mould with the core lining and with the wax matrix that the core lining is connected through drawing mechanism in the core lining inner chamber and take out.
Description
Technical Field
The utility model relates to a precision casting technical field especially relates to a wax matrix mould.
Background
The soluble wax mould is usually injected with wax from the top through a wax injection cylinder by using a pneumatic wax injector. Because the mold clamping force is small, screws are usually adopted for assisting the compression. The formation of the soluble wax into a monolithic mass in the mold requires a long time to cool and the material is brittle and the surface is not suitable for applying large forces. Therefore, the mould is generally divided into a plurality of blocks so as to take out the wax mould, and due to the position deviation in the splicing and pouring processes of the sub-modules, the wax mould has more surface batch seams and substandard dimensional manufacturing and matching precision, and is particularly obvious for processing and casting long and thin wax moulds of long and thin parts. If the mould of the part is not in a block structure, a mould ejecting mechanism is additionally arranged in the mould to eject the wax mould, but the method has a complicated mould structure and is very inconvenient to operate because the mould cavity of the mould is slender.
SUMMERY OF THE UTILITY MODEL
The utility model provides a wax matrix mould to solve the technical problem that the wax matrix mould that is used for making the wax matrix of slim type now gets the mould difficulty.
The utility model provides a wax matrix mould for make the wax matrix of slim type, fit last mould on the lower mould, locate the core lining of lower mould intracavity, locate the core lining outer wall be used for connecting the connection structure of the wax matrix after the shaping, stretch in the core lining inner chamber be used for with the core lining and with the wax matrix that the core lining is connected take out the stripping mechanism in the die cavity of lower mould including die cavity and the same lower mould of wax matrix appearance shape.
Furthermore, the bottom end of the core liner is of a conical surface structure, and the bottom surface of the die cavity of the lower die is provided with a positioning groove which is matched with the end of the core liner and used for positioning and installing the core liner, so that the core shaft is ensured to be vertically installed on the bottom surface of the die cavity of the lower die.
Furthermore, a notch used for angular positioning of the core liner is arranged at the end of the core substrate, and a convex block matched with the notch in shape is arranged in the positioning groove.
Further, an annular groove is formed in the inner wall surface of the core liner along the circumferential direction of the core liner; the stripping mechanism comprises a stripping screw rod and a stripping supporting block, wherein the stripping screw rod is used for stretching into the inner cavity of the core liner, the stripping supporting block is arranged on the stripping screw rod and used for abutting against the inner cavity of the annular groove, after the wax mold is formed, the upper mold is taken down, the stripping screw rod stretches into the inner cavity of the core liner, the stripping supporting block abuts against the inner cavity of the annular groove, and the core liner and the wax mold sleeved with the core liner are lifted upwards through the stripping screw rod.
Further, the mold stripping device used for installing the mold stripping supporting block is sleeved on the mold stripping screw rod, the bottom end of the mold stripping supporting block is hinged to the mold stripping device, and the hinged position is provided with a torsion spring used for bouncing the mold stripping supporting block open so that the top end of the mold stripping supporting block is abutted to the annular groove.
Further, a plurality of stripping supporting blocks are uniformly distributed along the circumferential direction of the stripping device.
Furthermore, the stripping device is provided with an assembling groove for installing the stripping supporting block.
Furthermore, the bottom of the die cavity of the lower die is provided with a groove for positioning and installing the stripping screw so as to ensure that the stripping screw and the core bush are coaxially assembled on the lower die.
Furthermore, the upper die is provided with a through hole for the stripping mechanism to extend into the inner cavity of the core liner.
Furthermore, the upper die is provided with a fixing groove which is matched with the top end of the core liner and is used for fixing the top end of the core liner on the upper die.
The utility model discloses following beneficial effect has:
the utility model discloses a wax matrix mould, through add the core lining in the die cavity of lower mould, during preparation wax matrix, with the wax material pouring to the appearance intracavity between core lining and the lower mould, the outer wall of core lining is equipped with the connection structure who is used for connecting the wax matrix after the shaping, after the wax matrix shaping, stretch out in the die cavity of lower mould with the core lining and with the wax matrix that the core lining is connected through drawing mechanism in the core lining inner chamber and take out. The mould has the advantages of simple structure and easy processing, the wax mould is taken out through the core lining, the wax mould is not easy to damage in the mould taking process, and the wax material is not required to be poured in the core lining, the formed wax mould has an inner cavity with the same shape as the core lining, the shape is the same as the shape of a part to be cast, and therefore the using amount of the wax material is reduced.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Illustration of the drawings:
1. a lower die; 2. an upper die; 3. a core liner; 4. a stripping mechanism; 41. an annular groove; 42. stripping the screw rod; 43. stripping the mold supporting block; 44. a stripping device; 100. and (5) wax pattern.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
As shown in fig. 1, the wax pattern mold of the present embodiment is used for manufacturing a slender wax pattern 100, and includes a lower mold 1 having a mold cavity with the same shape as the wax pattern 100, an upper mold 2 covering the lower mold 1, a core liner 3 disposed in the mold cavity of the lower mold 1, a connecting structure disposed on the outer wall surface of the core liner 3 and used for connecting the molded wax pattern 100, and a mold removing mechanism 4 extending into the inner cavity of the core liner 3 and used for removing the core liner 3 and the wax pattern 100 connected to the core liner 3 from the mold cavity of the lower mold 1. The utility model discloses a 100 moulds of wax matrix, through add core lining 3 in the die cavity at lower mould 1, during preparation wax matrix 100, pour into the wax material to the appearance intracavity between core lining 3 and the lower mould 1, because the outer wall of core lining 3 is equipped with the connection structure who is used for connecting wax matrix 100 after the shaping, consequently, behind the 100 shaping of wax matrix, stretch out in 3 inner chambers of core lining with core lining 3 and take out from the die cavity of lower mould 1 with the wax matrix 100 that core lining 3 is connected through pattern-drawing mechanism 4, mould simple structure, easy processing, take out wax matrix 100 through core lining 3, it is not fragile to get mould in-process wax matrix 100, and because need not to pour into the wax material in the core lining 3, wax matrix 100 after the shaping has an inner chamber the same with 3 shapes of core lining, and the shape is the same with the shape of required cast part, consequently, the quantity of wax material has been reduced. Optionally, the connecting structure is a plurality of teeth, grooves, projections and/or hook grooves provided on the outer wall surface of the bushing.
As shown in fig. 1, the bottom end of the core liner 3 is a conical surface structure, and the bottom surface of the cavity of the lower die 1 is provided with a positioning groove matched with the bottom end of the core liner 3 for positioning and installing the core liner 3, so as to ensure that the mandrel is vertically installed on the bottom surface of the cavity of the lower die 1. When the mold is taken, the wax mold 100 is stressed only in the vertical direction, so that the damage caused by radial stress and extrusion is avoided. The bottom end of the core lining 3 is provided with a notch for positioning the core lining 3 at an angle, and a convex block matched with the notch in shape is arranged in the positioning groove.
As shown in fig. 1, the stripping mechanism 4 includes an annular groove 41 formed on the inner wall surface of the core liner 3 along the circumferential direction of the core liner 3, a stripping screw 42 extending into the inner cavity of the core liner 3, and a stripping support block 43 mounted on the stripping screw 42 and used for abutting against the annular groove 41, after the wax mold 100 is molded, the upper mold 2 is taken down and the stripping screw 42 extends into the inner cavity of the core liner 3, so that the stripping support block 43 abuts against the annular groove 41, and the core liner 3 and the wax mold 100 sleeved with the core liner 3 are lifted upwards by the stripping screw 42.
As shown in fig. 1, a mold lifter 44 for installing a mold lifting supporting block is sleeved on the mold lifting screw 42, the bottom end of the mold lifting supporting block 43 is hinged to the mold lifter 44, and a torsion spring for bouncing the mold lifting supporting block 43 open so that the top end of the mold lifting supporting block 43 is abutted to the annular groove 41 is arranged at the hinged position. The ejector 44 is provided with an assembling groove for mounting the ejector stay block 43. After the wax mold 100 is formed, the upper mold 2 is taken down, the mold drawing screw rod 42 extends downwards into the inner cavity of the core liner 3, the mold drawing supporting block 43 is extruded by the inner wall surface of the core liner 3, when the mold drawing supporting block 43 extends to the annular groove 41, the mold drawing supporting block is automatically bounced open, so that the mold drawing supporting block 43 is abutted against the annular groove 41, and the mold drawing screw rod 42 is lifted, so that the core liner 3 and the wax mold 100 fixedly sleeved on the core liner 3 are lifted out of the mold cavity of the lower mold 1. The plurality of stripping supporting blocks 43 are uniformly arranged along the circumferential direction of the stripper 44. The supporting force in the vertical direction borne by the core liner 3 is uniformly distributed along the circumferential direction, so that the core liner 3 is ensured to move upwards along the vertical direction, and the phenomenon that the wax mold 100 is damaged due to the fact that the core liner 3 is deflected due to nonuniform circumferential stress is avoided.
As shown in fig. 1, the bottom of the cavity of the lower mold 1 is provided with a groove for positioning and installing the stripping screw 42, and the groove is arranged coaxially with the core liner 3 to ensure that the stripping screw 42 and the core liner 3 are coaxially assembled on the lower mold 1. The lift screw 42 is coaxial with the core liner 3, and the plurality of lift stay blocks 43 abutting against the annular groove 41 support the core liner 3 equally.
As shown in fig. 1, the upper mold 2 is provided with a through hole for the ejector mechanism 4 to extend into the cavity of the core liner 3. After the core lining 3 and the wax mold 100 are taken out by the stripping screw 42, the stripping screw 42 is pushed towards the bottom end of the core lining 3, so that the stripping supporting block 43 is separated from the annular groove 41, the stripping screw 42 is separated from the core lining 3, the upper mold 2 is covered on the lower mold 1, the stripping screw 42 is inserted into the mold cavity of the lower mold 1 from the through hole of the upper mold 2 for storage, then the wax mold 100 sleeved on the core lining 3 is shelled, the soluble wax mold 100 on the core lining 3 is dissolved, the core lining 3 is taken out, a part shell is manufactured, and finally, a part required to be processed is obtained by pouring in the part shell.
As shown in fig. 1, the upper mold 2 is provided with a fixing groove for fixing the top end of the core liner 3 to the upper mold 2 in cooperation with the top end of the core liner 3. The top end of the core lining 3 is fixed through the upper die 2, so that the core lining 3 is prevented from being extruded to deflect in the process of pouring wax materials. The top end of the core lining 3 is of a conical surface structure, and the lower surface of the upper die 2 is provided with a fixing groove matched with the conical surface structure.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wax pattern mold for manufacturing a long and thin wax pattern (100),
the wax mold forming device comprises a lower mold (1) with a mold cavity identical to the shape of a wax mold (100), an upper mold (2) covered on the lower mold (1), a core liner (3) arranged in the mold cavity of the lower mold (1), a connecting structure arranged on the outer wall surface of the core liner (3) and used for connecting the molded wax mold (100), and a mold stripping mechanism (4) extending into the inner cavity of the core liner (3) and used for enabling the core liner (3) and the wax mold (100) connected with the core liner (3) to be taken out of the mold cavity of the lower mold (1).
2. A wax pattern mold according to claim 1,
the bottom end of the core liner (3) is of a conical surface structure,
and a positioning groove which is matched with the bottom end of the core liner (3) and used for positioning and installing the core liner (3) is arranged on the bottom surface of the die cavity of the lower die (1) so as to ensure that the core liner (3) is vertically installed on the bottom surface of the die cavity of the lower die (1).
3. A wax pattern mold according to claim 2,
the bottom end of the core lining (3) is provided with a notch used for angular positioning of the core lining (3), and a convex block matched with the notch in shape is arranged in the positioning groove.
4. A wax pattern mold according to claim 1,
an annular groove (41) is formed in the inner wall surface of the core liner (3) along the circumferential direction of the core liner (3);
the stripping mechanism (4) comprises a stripping screw rod (42) extending into the inner cavity of the core liner (3) and a stripping supporting block (43) which is arranged on the stripping screw rod (42) and is used for abutting against the annular groove (41),
after the wax mold (100) is molded, the upper mold (2) is taken down, the stripping screw (42) extends into the inner cavity of the core liner (3), the stripping supporting block (43) is abutted to the inner cavity of the annular groove (41), and the core liner (3) and the wax mold (100) sleeved with the core liner (3) are lifted upwards through the stripping screw (42).
5. A wax pattern mold according to claim 4,
the mold stripping device (44) used for installing the mold stripping supporting block (43) is sleeved on the mold stripping screw rod (42), the bottom end of the mold stripping supporting block (43) is hinged to the mold stripping device (44), and the hinged position is provided with a torsion spring used for bouncing the mold stripping supporting block (43) open to enable the top end of the mold stripping supporting block (43) to abut against the annular groove (41).
6. A wax pattern mold according to claim 5,
the plurality of stripping supporting blocks (43) are uniformly distributed along the circumferential direction of the stripping device (44).
7. A wax pattern mold according to claim 5,
and the stripping device (44) is provided with an assembling groove for installing the stripping supporting block (43).
8. A wax pattern mold according to claim 4,
the bottom of the die cavity of the lower die (1) is provided with a groove for positioning and installing the stripping screw rod (42) so as to ensure that the stripping screw rod (42) and the core lining (3) are coaxially assembled on the lower die (1).
9. A wax pattern mold according to claim 1,
the upper die (2) is provided with a through hole for the stripping mechanism (4) to extend into the inner cavity of the core liner (3).
10. A wax pattern mold according to claim 1,
the upper die (2) is provided with a fixing groove which is matched with the top end of the core lining (3) and is used for fixing the top end of the core lining (3) on the upper die (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107597.8U CN209918817U (en) | 2019-01-22 | 2019-01-22 | Wax mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920107597.8U CN209918817U (en) | 2019-01-22 | 2019-01-22 | Wax mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209918817U true CN209918817U (en) | 2020-01-10 |
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ID=69067252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920107597.8U Active CN209918817U (en) | 2019-01-22 | 2019-01-22 | Wax mould |
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| Country | Link |
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| CN (1) | CN209918817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953443A (en) * | 2021-09-22 | 2022-01-21 | 中国航发南方工业有限公司 | Twisted inner cavity wax mold forming mold and part wax mold forming method |
-
2019
- 2019-01-22 CN CN201920107597.8U patent/CN209918817U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953443A (en) * | 2021-09-22 | 2022-01-21 | 中国航发南方工业有限公司 | Twisted inner cavity wax mold forming mold and part wax mold forming method |
| CN113953443B (en) * | 2021-09-22 | 2024-01-26 | 中国航发南方工业有限公司 | Twisted inner cavity wax pattern forming die and part wax pattern forming method |
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