CN107030255B - Mould for precision casting wax pressing device - Google Patents
Mould for precision casting wax pressing device Download PDFInfo
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- CN107030255B CN107030255B CN201710436971.4A CN201710436971A CN107030255B CN 107030255 B CN107030255 B CN 107030255B CN 201710436971 A CN201710436971 A CN 201710436971A CN 107030255 B CN107030255 B CN 107030255B
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- Prior art keywords
- groove
- cutting piece
- base body
- feeding
- wax
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
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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
- B22C9/04—Use of lost patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a mould for a precision casting wax pressing device, which comprises an upper mould body, a lower mould body matched with the upper mould body and a sprue gate mechanism arranged on the front wall body of the lower mould body, wherein the sprue gate mechanism comprises a base body, a cutting piece, a stepping motor, a connecting shaft, a semicircular accommodating groove, a lower semicircular groove, a feeding groove and a plurality of feeding holes, the accommodating groove is arranged at the upper end of the front wall body of the lower mould body, a base body is arranged in the accommodating groove, the lower semicircular groove is arranged at the upper end of the base body, the rotatable connecting shaft is arranged in the base body, the cutting piece is arranged at the rear end of the connecting shaft at the rear end of the base body, and the rear end of the cutting piece is flush with the front inner walls of the upper mould body and the lower mould body.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of precision casting, in particular to the technical field of a mould for a precision casting wax pressing device.
[ background ] A method for producing a semiconductor device
Investment casting is also known as lost wax casting. Investment casting generally refers to a casting scheme in which a pattern is made of a fusible material, a plurality of layers of refractory materials are coated on the surface of the pattern to make a shell, the pattern is melted and discharged from the shell, and thus a casting mold without a parting surface is obtained, and the casting mold can be subjected to high-temperature roasting and then sand filling and pouring. Investment casting is often referred to as "lost wax casting" because patterns are widely made from waxy materials.
Wax material is filling the type in-process, all can be full of wax material in the die cavity of mould and the pouring gate, and the shaping part of pouring gate need be removed when repairing the mould through the manual work after the wax matrix shaping like this, owing to through manual operation, can influence the surface accuracy of mould, increases artifical intensity of labour, reduction in production efficiency.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a mold for a precision casting wax pressing device, which can reduce the labor intensity of workers and improve the production efficiency without affecting the surface precision of the mold.
In order to achieve the purpose, the invention provides a mold for a precision casting wax pressing device, which comprises an upper mold body, a lower mold body matched with the upper mold body and a sprue gate mechanism arranged on a front wall body of the lower mold body, wherein the sprue gate mechanism comprises a seat body, a cutting sheet, a stepping motor, a connecting shaft, a semicircular accommodating groove, a lower semicircular groove, a feeding groove and a plurality of feeding holes, the upper end of a front wall body of the lower mold body is provided with the accommodating groove, a seat body is arranged in the accommodating groove, the upper end of the seat body is provided with the lower semicircular groove, the rotatable connecting shaft is arranged in the seat body, the rear end of the connecting shaft is provided with the cutting sheet at the rear end of the seat body, the rear end of the cutting sheet is flush with the front inner walls of the upper mold body and the lower mold body, the front end of the seat body is provided with the stepping motor connected with the connecting shaft, the lower end of the front wall body of the upper mold body is provided with the upper semicircular groove corresponding to the lower semicircular groove, the rear end of the upper semicircular groove is provided with an arc groove matched with the cutting sheet, the lower semicircular groove is provided with the arc groove corresponding to the feeding hole, and the lower mold cavity is provided with the feeding hole.
Preferably, a gap between the circumferential surface of the cutting piece and the arc-shaped groove and a gap between the front end of the cutting piece and the front ends of the seat body and the arc-shaped groove are zero.
Preferably, the upper end of the seat body is flush with the upper end of the front wall body of the lower mold body, a gap between the seat body and the arc surface of the accommodating groove is zero, the lower end of the seat body is provided with a positioning body, a magnet is arranged in the positioning body, and the accommodating groove is provided with a positioning groove matched with the positioning body.
Preferably, a tapered portion which is matched with a gun head of the wax injection gun is formed at the front end of the wax injection port.
Preferably, the feeding groove is in a conical shape, and the depth of the feeding groove is 1-3 mm.
Preferably, the feeding hole is a conical hole, and the length of the feeding hole is 0.1-0.3 mm
The invention has the beneficial effects that: according to the invention, the sprue mechanism is arranged on the front wall body of the lower die body, and the sprue mechanism can cut the molded wax die body in the wax sprue from the molded wax die body in the die cavity.
The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural view of a mold for a precision casting wax-pressing device according to the present invention;
fig. 2 is an enlarged view of a in fig. 1.
In the figure: 1-upper die body, 2-lower die body, 3-sprue gate mechanism, 31-base body, 32-cutting piece, 33-stepping motor, 34-connecting shaft, 35-connecting shaft, 36-lower semicircular groove, 37-feeding groove, 38-feeding hole, 39-upper semicircular groove, 310-arc groove, 311-positioning body, 312-magnet and 351-positioning groove.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the invention relates to a mold for a precision casting wax pressing device, comprising an upper mold body 1, a lower mold body 2 matched with the upper mold body 1, and a sprue gate mechanism 3 mounted on the front wall body of the lower mold body 2, wherein the sprue gate mechanism 3 comprises a seat body 31, a cutting piece 32, a stepping motor 33, a connecting shaft 34, a semicircular accommodating groove 35, a lower semicircular groove 36, a feeding groove 37 and a plurality of feeding holes 38, the upper end of the front wall body of the lower mold body 2 is provided with the accommodating groove 35, the seat body 31 is arranged in the accommodating groove 35, the upper end of the seat body 31 is provided with the lower semicircular groove 36, the seat body 31 is internally provided with the rotatable connecting shaft 34, the rear end of the connecting shaft 34 is provided with the cutting piece 32 at the rear end of the seat body 31, the rear end of the cutting piece 32 is flush with the front inner walls of the upper mold body 1 and the lower mold body 2, the front end of the seat body 31 is provided with the stepping motor 33 connected with the connecting shaft 34, the lower end of the front wall body of the upper die body 1 is provided with an upper semicircular groove 39 corresponding to the lower semicircular groove 36, the rear end of the upper semicircular groove 39 is provided with an arc groove 310 matched with the cutting piece 32, the lower semicircular groove 36 is matched with the upper semicircular groove 39 to form a wax injection port, the cutting piece 32 blocks the rear end of the wax injection port, the surface of the cutting piece 32 corresponding to the wax injection port is provided with a feed groove 37, the rear end of the feed groove 37 is provided with a feed hole 38 communicated with the cavity of the lower die body 2, the gap between the peripheral surface of the cutting piece 32 and the arc grooves 310 and the arc surface of the accommodating groove 35 is zero, the gap between the front end of the cutting piece 32 and the front ends of the seat body 31 and the arc groove 310 is zero, the upper end of the seat body 31 is flush with the upper end of the front wall body of the lower die body 2, and the gap between the arc surfaces of the seat body 31 and the accommodating groove 35 are zero, the lower extreme of pedestal 31 is equipped with locating body 311, be equipped with magnet 312 in the locating body 311, be equipped with the constant head tank 351 with locating body 311 matched with in the holding tank 35, the front end of annotating the wax mouth is formed with the tip matched with toper portion with annotating the wax rifle, feed chute 37 is the toper shape, the degree of depth of feed chute 37 is 1 ~ 3 millimeters, feed port 38 is the bell mouth, the length of feed port 38 is 0.1 ~ 0.3 millimeters.
The working process of the invention is as follows:
during the working process of the mould for the precision casting wax-pressing device, wax materials output by a gun head of a wax injection gun sequentially pass through a wax injection port, a feeding groove 37 and a feeding hole 38 and enter a mould cavity formed by matching an upper mould body 1 and a lower mould body 2, before demoulding, a stepping motor 33 is started to rotate through a controller, the stepping motor 33 drives a cutting sheet 32 to rotate for a circle through a connecting shaft 34, the cutting sheet 32 cuts off the connecting part of a formed wax mould body in the wax injection port and a formed wax mould body in the mould cavity, and then the mould is opened to take out the formed wax mould body in the mould cavity and the formed wax mould body in the wax injection port.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (3)
1. The utility model provides a mould for precision casting wax pressing device which characterized in that: the pouring gate mechanism comprises an upper die body (1), a lower die body (2) matched with the upper die body (1) and a pouring gate mechanism (3) installed on the front wall body of the lower die body (2), wherein the pouring gate mechanism (3) comprises a base body (31), a cutting piece (32), a stepping motor (33), a connecting shaft (34), a semicircular accommodating groove (35), a lower semicircular groove (36), a feeding groove (37) and a plurality of feeding holes (38), the upper end of the front wall body of the lower die body (2) is provided with the accommodating groove (35), the base body (31) is arranged in the accommodating groove (35), the upper end of the base body (31) is provided with the lower semicircular groove (36), the rotatable connecting shaft (34) is arranged in the base body (31), the rear end of the connecting shaft (34) is provided with the cutting piece (32) at the rear end of the base body (31), the rear end of the cutting piece (32) is flush with the front inner walls of the upper die body (1) and the lower die body (2), the front end of the upper die body (1) is provided with the semicircular groove (39), and the lower end of the semicircular groove (39) is provided with the corresponding to the upper groove (310), the wax injection mould is characterized in that the lower semicircular groove (36) and the upper semicircular groove (39) are matched to form a wax injection port, the cutting piece (32) blocks the rear end of the wax injection port, a feeding groove (37) is formed in the surface, corresponding to the wax injection port, of the cutting piece (32), a feeding hole (38) communicated with a cavity of the lower mould body (2) is formed in the rear end of the feeding groove (37), the upper end of the base body (31) is flush with the upper end of the front wall of the lower mould body (2), a gap between the base body (31) and the arc surface of the containing groove (35) is zero, a positioning body (311) is arranged at the lower end of the base body (31), a magnet (312) is arranged in the positioning body (311), a positioning groove (351) matched with the positioning body (311) is formed in the containing groove (35), a gap between the peripheral surface of the cutting piece (32) and the arc surface of the arc groove (310) and the arc surface of the injection containing groove (35) is zero, a gap between the front end of the cutting piece (32) and the front end of the base body (31) and the gun head is formed with a conical gun matched with the wax injection gun head.
2. The mold for the precision casting wax-pressing device according to claim 1, wherein: the feeding groove (37) is in a conical shape, and the depth of the feeding groove (37) is 1-3 mm.
3. The mold for a precision casting wax-pressing device according to any one of claims 1 to 2, wherein: the feeding hole (38) is a conical hole, and the length of the feeding hole (38) is 0.1-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436971.4A CN107030255B (en) | 2017-06-12 | 2017-06-12 | Mould for precision casting wax pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436971.4A CN107030255B (en) | 2017-06-12 | 2017-06-12 | Mould for precision casting wax pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107030255A CN107030255A (en) | 2017-08-11 |
| CN107030255B true CN107030255B (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710436971.4A Active CN107030255B (en) | 2017-06-12 | 2017-06-12 | Mould for precision casting wax pressing device |
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| CN (1) | CN107030255B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007237186A (en) * | 2006-03-03 | 2007-09-20 | Seiko Epson Corp | Rubber mold for pouring wax and feed/discharge device for the same rubber mold in lost wax casting method |
| CN201950158U (en) * | 2010-12-29 | 2011-08-31 | 陈祥坤 | Paraffin injecting system of paraffin injecting machine |
| CN102689420B (en) * | 2011-03-23 | 2016-07-06 | 汉达精密电子(昆山)有限公司 | Mould ingate excises mechanism automatically |
| CN202951832U (en) * | 2012-10-30 | 2013-05-29 | 霍山县东风铸造有限公司 | Wax injection opening structure used for casting processing |
| CN203426370U (en) * | 2013-09-04 | 2014-02-12 | 南京优耐特精密铸造有限公司 | Device of preventing cerate from reversely flowing |
| CN104690862A (en) * | 2013-12-06 | 2015-06-10 | 大连隆星新材料有限公司 | High-precision wax injection control system for paraffin forming machine |
| CN204381294U (en) * | 2014-12-31 | 2015-06-10 | 深圳市圣德宝实业有限公司 | For the wax injector structure of gold machine-shaping |
| CN205818350U (en) * | 2016-07-20 | 2016-12-21 | 台州市黄岩恒大塑胶有限公司 | Automatically remove the injection mold of cast gate waste material |
| CN205818351U (en) * | 2016-07-20 | 2016-12-21 | 台州市黄岩恒大塑胶有限公司 | A kind of injection mold automatically removing cast gate waste material |
| CN206170542U (en) * | 2016-11-18 | 2017-05-17 | 台州市黄岩宏特精工模具有限公司 | Injection mold |
| CN206824610U (en) * | 2017-06-12 | 2018-01-02 | 浙江坤博机械制造有限公司 | Wax apparatus mould is pressed in a kind of hot investment casting |
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2017
- 2017-06-12 CN CN201710436971.4A patent/CN107030255B/en active Active
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| CN107030255A (en) | 2017-08-11 |
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| SE01 | Entry into force of request for substantive examination | ||
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Address after: 314300 Xuyou Che Village, Qinshan Street, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Kunbo Precision Technology Co.,Ltd. Address before: 314300 Xuyou Che Village, Qinshan Street, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG KUNBO MACHINERY & MANUFACTURING Co.,Ltd. |
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