CN204381297U - Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft - Google Patents
Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft Download PDFInfo
- Publication number
- CN204381297U CN204381297U CN201420850414.9U CN201420850414U CN204381297U CN 204381297 U CN204381297 U CN 204381297U CN 201420850414 U CN201420850414 U CN 201420850414U CN 204381297 U CN204381297 U CN 204381297U
- Authority
- CN
- China
- Prior art keywords
- rising head
- sand
- leakage avoiding
- die holder
- venthole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of sand-cast sand leakage avoiding insulated feeder preparation method and particular manufacturing craft thereof.Its scheme gives vent to anger between rod at rising head die holder and rising head to arrange a sand leakage avoiding platform, guarantees that the bottom of sand leakage avoiding platform covers the rising head venthole overlapping top with the matching used riser head heat-preserving of rising head die holder completely; Make rising head time, rising head give vent to anger clavate become space be sand mold venthole, sand leakage avoiding platform formed space be transition exhaust chamber, rising head die holder formed space be the casting liquid feeding chamber be connected with foundry goods body die cavity; Be embedded in riser head heat-preserving cover in casting liquid feeding chamber, the rising head venthole at its top and sand mold venthole misplaced on vertical completely and arranges, casting liquid feeding chamber, transition exhaust chamber can be made and sand mold venthole curve is roundabout communicates.This optimizing structure design and layout, can give vent to anger smoothly in situation at the made rising head of guarantee, and avoiding shaking the molding sand got loose, to enter foundry goods body die cavity inner, thus effectively reduce foundry goods burning into sand defect, significantly promotes casting quality.
Description
Technical field
The utility model relates to the cast component Feeder Design technology adopting clay-bonded sand moulding, refers to a kind of sand-cast sand leakage avoiding insulated feeder particular manufacturing craft particularly.
Background technology
Casting industry plays a part very important in the promotion national economic development.At present, China's casting output increases year by year, and sand-cast output accounts for more than 80% of whole casting output.In the production process of sand-cast, rising head makes the link that is absolutely necessary.Rising head is a kind of for avoiding foundry goods to occur defect and being attached to above foundry goods or the supplementary part of side.In general, rising head is the cavity of a storage liquid metal, the supply metal when foundry goods is formed, and its Main Function is feeding, also prevents the effects such as shrinkage cavity and porosity, exhaust, collection slag simultaneously.
The shape of rising head and Position Design should ensure that it solidifies late than wanting the position of feeding, and have enough liquid metal supplies.Usual employing consecutive solidification principle, namely on foundry goods, one is set up from the part away from rising head to the thermograde increased progressively gradually rising head, thus realize by away from rising head to rising head direction consecutive solidification, namely the position away from rising head is first solidified, near the position after coagulation of rising head, the final set of rising head own.In order to improve the feeding effect of rising head further, those skilled in the art can set up a riser head heat-preserving cover toward contact in the rising head that making is shaping, to extend the setting time of liquid metal in it, obtain better feeding effect.
Rising head is shaping depends on hot top mould with quality that is performance, traditional hot top mould and by its shaping rising head as shown in Figure 1, 2, the rising head that it comprises rising head die holder 2 and side disposed thereon gives vent to anger excellent 1, also comprise consistent with rising head die holder 2 outer contour shape and matching used riser head heat-preserving overlaps 5, riser head heat-preserving overlaps 5 tops and offers rising head venthole 4.When rising head makes, rod 1 of first rising head die holder 2 and rising head being given vent to anger is attached in foundry goods body mold, puts into sand box used for casting in the lump, fills full molding sand 6 and compacting in its outside; Then taking-up rising head die holder 2 and rising head give vent to anger excellent 1, obtain the sand mold of this rising head, be wherein sand mold venthole 3 by the rising head space that formed of rod 1 of giving vent to anger, the space formed by rising head die holder 2 is the casting liquid feeding chamber 7 be connected with foundry goods body die cavity, it is smooth that sand mold venthole 3 can prick logical finishing further, ensures its two ends respectively with extraneous and cast liquid feeding chamber 7 and communicate; Again riser head heat-preserving cover 5 is arranged in casting liquid feeding chamber 7, and makes rising head venthole 4 and sand mold venthole 3 overlapping alignment at its top, to ensure the smooth gas discharge in casting cycle.
But there is following defect in the design of above-mentioned hot top mould: its rising head die holder 2 and rising head rod 1 of giving vent to anger is close to adjacent in rising head manufacturing process, in gained rising head sand mold sand mold venthole 3 and rising head venthole 4 directly overlap communicate.And in the mould assembling of rising head sand mold, carrying, the operating process such as clamping or casting, inevitably produce big and small vibrations and rock, the loose green sand 6 of mould surface very easily falls into foundry goods body die cavity along go out sand mold pore 3, rising head venthole 4 and the casting liquid feeding chamber 7 of straight line, cause the burning into sand defect of foundry goods, not only significantly add cleaning work amount, time serious, even cause scrapping of foundry goods.
Summary of the invention
The purpose of this utility model will provide a kind of sand-cast sand leakage avoiding insulated feeder particular manufacturing craft exactly, it is by optimizing structural design and the component layouts of mould, can give vent to anger smoothly in situation at the obtained rising head of guarantee, avoid entering foundry goods body die cavity inside because shaking the molding sand got loose, thus effectively reduce foundry goods burning into sand defect, significantly improve casting quality.
For achieving the above object, sand-cast sand leakage avoiding insulated feeder particular manufacturing craft designed by the utility model, comprise rising head die holder, the rising head be arranged on above rising head die holder gives vent to anger rod and consistent with rising head die holder outer contour shape and matching used riser head heat-preserving cover, described riser head heat-preserving cover top is provided with rising head venthole, its special character is: described rising head die holder top and rising head are given vent to anger between rod bottom and be provided with sand leakage avoiding platform, and the bottom area of described sand leakage avoiding platform can cover the rising head venthole put with the matching used riser head heat-preserving of rising head die holder completely.
When adopting the utility model to make rising head, carry out according to the following steps:
1) rod of rising head die holder, sand leakage avoiding platform and rising head being given vent to anger is attached in foundry goods body mold by setting position, puts into sand box used for casting in the lump, at the full molding sand of its outside filling, and by casting the dynamics compacting molding sand of designing requirement;
2) withdrawing pattern takes out rising head die holder, sand leakage avoiding platform and rising head and to give vent to anger rod, obtains the sand mold of made casting pressing port; In this sand mold cavity, by rising head give vent to anger clavate become space be sand mold venthole, the space formed by sand leakage avoiding platform is transition exhaust chamber, and the space formed by rising head die holder is the casting liquid feeding chamber be connected with foundry goods body die cavity;
3) installation riser head heat-preserving cover is embedded in casting liquid feeding chamber, and make riser head heat-preserving overlap the rising head venthole at top and sand mold venthole to misplace completely on vertical and arrange, namely sand mold venthole is completely not overlapping in the projection on vertical with rising head venthole, thus casting liquid feeding chamber can only be first connected with transition exhaust chamber by rising head venthole, communicate with sand mold venthole via transition exhaust chamber curve is roundabout again, and then prevent in mould assembling, carrying, clamp or in casting cycle, shake loose molding sand and directly fall into foundry goods body die cavity through casting liquid feeding chamber from sand mold venthole.
According to dimensions and the processing needs of made rising head, described sand leakage avoiding platform can be conjoined structure with rising head die holder, also can give vent to anger rod in conjoined structure with rising head, also can give vent to anger rod with rising head die holder and rising head in conjoined structure simultaneously.The parts that dimensions is large can design in absolute construction, easily easy to process to make; The parts that dimensions is little are then optimized for conjoined structure, and the technological process that rising head can be made to make like this is shorter, and the precision of gained rising head is higher, better quality.
Further, the bottom area of described sand leakage avoiding platform is less than the topside area of described rising head die holder, thus makes both in up-small and down-big ledge structure.Like this, in obtained rising head sand mold cavity, the transition exhaust chamber formed by sand leakage avoiding platform and being formed between casting liquid feeding chamber also in up-small and down-big ledge structure by rising head die holder.The installation seam that this ledge structure overlaps as riser head heat-preserving, can guarantee that on the one hand riser head heat-preserving cover embeds accurate positioning, stable, firm, the opposing party can guarantee that casting liquid feeding chamber is connected with the rising head venthole that can only overlap top by riser head heat-preserving between transition exhaust chamber, thus make to give vent to anger that clavate becomes by rising head become curve circuitous channel between sand mold venthole and casting liquid feeding chamber.
Further, described rising head rod of giving vent to anger is arranged on sand leakage avoiding edge of table place.Like this, when making rising head sand mold, rising head can be made to give vent to anger sand mold venthole that clavate becomes and the rising head venthole that riser head heat-preserving overlaps top are arranged apart from farther, to obtain better sand leakage avoiding effect.
Again further, described rising head gives vent to anger rod in elongated taper shape, and described sand leakage avoiding platform is Thin Disk shape or thin taper type, and described rising head die holder is thick taper type.Adopt the smooth taper shape of outline and/or disc-shaped part to be combined into rising head particular manufacturing craft, not only structure simple, be easy to manufacture, and be convenient to withdrawing pattern, swift to operate, contribute to improving rising head quality.
The utility model has the advantage of: designed rising head particular manufacturing craft is given vent to anger between rod at rising head die holder and rising head and set up a sand leakage avoiding platform dexterously, this sand leakage avoiding platform can form a transition exhaust chamber in made rising head sand mold cavity, this transition exhaust chamber casting liquid feeding chamber that clavate becomes sand mold venthole and rising head die holder to be formed of being given vent to anger by rising head is connected as a single entity, after casting liquid feeding chamber is embedded in riser head heat-preserving cover, because the riser head heat-preserving cover rising head venthole at top and sand mold venthole are misconstruction, therefore this transition exhaust chamber is the undertaking space of loose green sand along sand mold venthole freely falling body, again that sand mold venthole and rising head venthole stagger the roundabout interface channel of the curve after designing, in the mould assembling of rising head sand mold, in the operating process such as transhipment, shake loose molding sand and only can fall into (i.e. riser head heat-preserving cover top) in transition exhaust chamber, to be not easy through dislocation and the narrow and small rising head venthole of area falls into casting liquid feeding chamber (it is communicated with foundry goods body die cavity), thus stop or avoid producing foundry goods burning into sand defect.Meanwhile, the gas formed in foundry goods casting cycle can enter transition exhaust chamber through rising head venthole, then freely discharges along sand mold venthole, thus guarantee is given vent to anger smooth and easy.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional hot top mould.
Fig. 2 is for adopting the structural representation of traditional rising head of Mold Making shown in Fig. 1.
Fig. 3 is the structural representation of the utility model sand-cast sand leakage avoiding insulated feeder particular manufacturing craft.
Fig. 4 is for adopting the structural representation of the sand leakage avoiding insulated feeder of Mold Making shown in Fig. 3.
Fig. 5 is the vertical projected position relation schematic diagram of sand mold venthole and rising head venthole in Fig. 4.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Hot top mould traditional shown in Fig. 1,2 and by its shaping dead head structure, has done detailed introduction in the introduction, has repeated no more in this.
Figure 3 shows that sand-cast sand leakage avoiding insulated feeder particular manufacturing craft of the present utility model.The rising head sand mould structure schematic diagram that Fig. 4 ~ 5 are produced for adopting this rising head particular manufacturing craft.This rising head particular manufacturing craft to be given vent to anger rod 1 and riser head heat-preserving cover 5 composition primarily of rising head die holder 2, sand leakage avoiding platform 8, rising head.Rising head die holder 2, in thick taper type, is attached in foundry goods body mold when making rising head sand mold; Sand leakage avoiding platform 8, in Thin Disk shape or thin taper type, is arranged on the top of rising head die holder 2; Rising head gives vent to anger rod 1 in elongated taper shape, is arranged on sand leakage avoiding platform 8 top place.Riser head heat-preserving cover 5 is parts matching used with rising head die holder 2, and its outer contour shape is identical with the outer contour shape of rising head die holder 2.The top of riser head heat-preserving cover 5 is provided with rising head venthole 4, and when making rising head sand mold, the bottom area of sand leakage avoiding platform 8 can cover the rising head venthole 4 on riser head heat-preserving cover 5 completely.
In the present embodiment, give vent to anger rod 1, sand leakage avoiding platform 8 and rising head die holder 2 of rising head adopts the conjoined structure be integrated into, proofread without the need to the position between parts when making rising head sand mold like this, and withdrawing pattern is swift and convenient to operate, the precision of gained rising head sand mold is high, quality good.
Meanwhile, in the present embodiment, the bottom area of sand leakage avoiding platform 8 is less than the topside area of rising head die holder 2, thus makes both in up-small and down-big ledge structure.The installation seam of riser head heat-preserving cover 5 can be formed like this in obtained rising head sand mold cavity, be convenient to riser head heat-preserving cover and embed 5 fast, precisely, securely and be positioned in cavity corresponding to rising head sand mold.
When adopting above-mentioned rising head particular manufacturing craft to make sand-cast sand leakage avoiding insulated feeder, carry out according to the following steps:
1) rod 1 of the rising head die holder 2 be connected as a single entity, sand leakage avoiding platform 8 and rising head being given vent to anger is attached in foundry goods body mold by setting position, puts into sand box used for casting in the lump, at the full molding sand 6 of its outside filling, and by casting the dynamics of designing requirement by molding sand 6 compacting.
2) withdrawing pattern takes out the rising head die holder 2, sand leakage avoiding platform 8 and the rising head that are connected as a single entity and gives vent to anger excellent 1, obtains the sand mold of made casting pressing port.In this sand mold cavity, be sand mold venthole 3 by the rising head elongated cone-shaped space that formed of rod 1 of giving vent to anger, the Thin Disk shape formed by sand leakage avoiding platform 8 or thin taper type space are transition exhaust chamber 10, the thick taper type space formed by rising head die holder 2 is the casting liquid feeding chamber 7 be connected with foundry goods body die cavity, and in up-small and down-big ledge structure between transition exhaust chamber 10 and casting liquid feeding chamber 7, as the installation seam of riser head heat-preserving cover 5.By further trickle finishing, logical and smoothing is pricked at sand mold venthole 3 two ends, ensure its two ends respectively with extraneous with cast liquid feeding chamber 7 and be communicated with smooth and easy.
3) installation riser head heat-preserving cover 5 is embedded in casting liquid feeding chamber 7, the top making riser head heat-preserving overlap 5 is close on the installation seam that formed between transition exhaust chamber 10 and casting liquid feeding chamber 7, and the rising head venthole 4 making riser head heat-preserving overlap 5 tops and sand mold venthole 3 misplace completely on vertical and arrange.Particularly, 5 top planes geometric centers are overlapped for datum mark O with riser head heat-preserving, control line angle α=90 ~ 180 ° between the vertical projected centre point A of sand mold venthole 3 and the vertical projected centre point B of rising head venthole 4 and described datum mark O, best line angle α=180 °.α is larger for line angle, and the degree of misalignment of sand mold venthole and rising head venthole is also larger, and both placement positions are also farther, can be more effectively trapped in transition exhaust chamber by loose green sand, prevents it from directly falling into foundry goods body die cavity.
Practice shows, when line angle is designed to α=180 °, the degree of misalignment of sand mold venthole and rising head venthole is maximum, and it can stop Lou sand substantially.Like this, the projection on vertical of rising head venthole 4 and sand mold venthole 3 not only can not be overlapping but also spacing is far away, thus casting liquid feeding chamber 7 can only be first connected with transition exhaust chamber 10 by rising head venthole 4, communicate with sand mold venthole 3 via transition exhaust chamber 10 curve is roundabout again, and then prevent from shaking loose molding sand 6 in mould assembling, carrying, clamping or casting cycle and directly fall into foundry goods body die cavity through casting liquid feeding chamber 7 from sand mold venthole 3.
Rising head particular manufacturing craft of the present utility model is adopted to make sand-cast sand leakage avoiding insulated feeder, in the mould assembling of rising head sand mold, in the processes such as transhipment, in it, the loose molding sand 6 of vibrations can only fall in transition exhaust chamber 10 along sand mold venthole 3, namely riser head heat-preserving overlaps on the end face of 5, the rising head venthole 4 overlapping 5 tops due to riser head heat-preserving and sand mold venthole 3 are not overlapping on vertical, therefore drop on riser head heat-preserving to overlap the loose molding sand in 5 tops 6 and can not fall into foundry goods body die cavity along rising head venthole 4 through casting liquid feeding chamber 7, effectively prevent the foundry goods burning into sand defect that rising head leakage sand causes.And in foundry goods casting cycle, the rising head venthole 4 that the gas produced in sand mold can overlap 5 tops along riser head heat-preserving enters the transition exhaust chamber 10 that sand leakage avoiding platform 8 is formed, then curve is roundabout discharges along sand mold venthole 3, and guarantee is given vent to anger smooth and easy, thus ensures casting finished products quality.
Claims (7)
1. a sand-cast sand leakage avoiding insulated feeder particular manufacturing craft, comprise rising head die holder (2), the rising head being arranged on rising head die holder (2) top is given vent to anger rod (1), and consistent with rising head die holder (2) outer contour shape and matching used riser head heat-preserving cover (5), described riser head heat-preserving cover (5) top is provided with rising head venthole (4), it is characterized in that: described rising head die holder (2) top and rising head are given vent to anger between rod (1) bottom and be provided with sand leakage avoiding platform (8), the bottom area of described sand leakage avoiding platform (8) can cover the rising head venthole (4) with rising head die holder (2) on matching used riser head heat-preserving cover (5) completely.
2. sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to claim 1, is characterized in that: described sand leakage avoiding platform (8) and rising head die holder (2) are in conjoined structure.
3. sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to claim 1, is characterized in that: described sand leakage avoiding platform (8) and rising head give vent to anger rod (1) in conjoined structure.
4. sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to claim 1, is characterized in that: described sand leakage avoiding platform (8) gives vent to anger rod (1) all in conjoined structure with rising head die holder (2) and rising head.
5. the sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to any one of Claims 1 to 4, it is characterized in that: the bottom area of described sand leakage avoiding platform (8) is less than the topside area of described rising head die holder (2), thus make both in up-small and down-big ledge structure.
6. the sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to any one of Claims 1 to 4, is characterized in that: described rising head rod (1) of giving vent to anger is arranged on the edge of sand leakage avoiding platform (8).
7. the sand-cast sand leakage avoiding insulated feeder particular manufacturing craft according to any one of Claims 1 to 4, it is characterized in that: described rising head gives vent to anger rod (1) in elongated taper shape, described sand leakage avoiding platform (8) is in Thin Disk shape or thin taper type, and described rising head die holder (2) is in thick taper type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850414.9U CN204381297U (en) | 2014-12-29 | 2014-12-29 | Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850414.9U CN204381297U (en) | 2014-12-29 | 2014-12-29 | Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204381297U true CN204381297U (en) | 2015-06-10 |
Family
ID=53354052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420850414.9U Active CN204381297U (en) | 2014-12-29 | 2014-12-29 | Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204381297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439088A (en) * | 2014-12-29 | 2015-03-25 | 南车长江车辆有限公司 | Manufacturing method of sand leaking preventing and heat preserving feed head of sand casting and special die thereof |
| CN107598093A (en) * | 2017-11-06 | 2018-01-19 | 四川共享铸造有限公司 | A kind of insulated feeder sand core structure and core manufacture method |
-
2014
- 2014-12-29 CN CN201420850414.9U patent/CN204381297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439088A (en) * | 2014-12-29 | 2015-03-25 | 南车长江车辆有限公司 | Manufacturing method of sand leaking preventing and heat preserving feed head of sand casting and special die thereof |
| CN107598093A (en) * | 2017-11-06 | 2018-01-19 | 四川共享铸造有限公司 | A kind of insulated feeder sand core structure and core manufacture method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104707939A (en) | Cast sand core for cylinder cover of diesel engine | |
| CN204486722U (en) | The casting sand core of diesel engine cylinder cover | |
| CN207358114U (en) | A kind of large thick-wall ingot mould casting moulding system | |
| CN107745087B (en) | Sand core and its cold-box core shooting universal mold and manufacturing method | |
| CN104439088A (en) | Manufacturing method of sand leaking preventing and heat preserving feed head of sand casting and special die thereof | |
| CN106670383A (en) | Sand mould used for casting machine tool double-arm vertical column casting and manufacturing method of sand mould | |
| CN204381297U (en) | Sand-cast sand leakage avoiding insulated feeder particular manufacturing craft | |
| CN203900397U (en) | Casting mold for conductive static contact base cast piece of high-voltage switch circuit breaker | |
| CN102672113A (en) | Method for pouring copper alloy neck mould of glass mould by using single resin sand box | |
| CN102784890B (en) | Method for casting lead screw sleeve type casts | |
| CN204209069U (en) | A kind of engine cylinder cover casting mould | |
| CN203875291U (en) | Exhaust manifold casting mold | |
| CN203003120U (en) | Low-pressure casting mold for fluid cover | |
| CN206241192U (en) | Running and feeding system on the DISA lines of small-sized cylinder body gray iron casting | |
| CN103962504A (en) | Casting process for hydraulic main control valve blank | |
| CN204867311U (en) | Atmospheric pressure rising head is used in casting | |
| CN110102716B (en) | Casting process of saddle casting | |
| CN204565050U (en) | A kind of super large external form sand mold | |
| CN104741542A (en) | Casting method of girder having thin-walled cylinder and casting mold | |
| CN102941316A (en) | Production method for machine tool guide rail casts | |
| CN203156017U (en) | Low-pressure casting aluminum alloy cylinder cover high-pressure oil duct pre-casting structure | |
| CN203003119U (en) | Low-pressure casting mold for motor body | |
| CN206229981U (en) | A kind of water conservancy diversion mould of DRV | |
| CN201333499Y (en) | Diesel engine body casting mold | |
| CN104493086A (en) | Integral forming process of DZ1 type side frame guide frame of wagon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |