CN202343882U - Device for preventing sand core from floating upwards - Google Patents
Device for preventing sand core from floating upwards Download PDFInfo
- Publication number
- CN202343882U CN202343882U CN2011205435073U CN201120543507U CN202343882U CN 202343882 U CN202343882 U CN 202343882U CN 2011205435073 U CN2011205435073 U CN 2011205435073U CN 201120543507 U CN201120543507 U CN 201120543507U CN 202343882 U CN202343882 U CN 202343882U
- Authority
- CN
- China
- Prior art keywords
- core
- sand
- cross bar
- drag box
- cross rod
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for preventing a sand core from floating upwards, which comprises a lower sand box, a lower sand mould, a sand core, an extended screw, a cross rod and a fastener, wherein the cross rod leans against the bottom of the lower sand box, and bending portions at two ends of the cross rod are embedded in the lower sand mould; and the extended screw penetrates through centers of the lower sand box, the lower sand mould and the sand core from bottom to top sequentially, one end of the extended screw is connected with the cross rod, and the other end of the extended screw penetrates through the sand core and is in threaded connection with the fastener. The device has the advantages that the extended screw, the cross rod and the fastener are combined to limit the sand core and prevent the sand core from floating upwards during the casting process, so that a core support is substituted. The defect of oil leakage of castings which is caused by usage of the core support is thoroughly eliminated when the green sand process is used for producing an integral cast steel axle housing, and the process operation is simple.
Description
Technical field
The utility model relates to a kind of automobile axle housing foundry engieering, is specifically related to a kind of device that prevents the core come-up.
Background technology
Core generally is the inside die cavity that is used for forming foundry goods; When adopting green sand moulding explained hereafter cast steel axle housing; In order to prevent the core come-up; Usually prevent the core come-up, but in production in enormous quantities as do not take its corresponding measures (as: soldering, infiltration kerosene), then can't guarantee the whole non-leakage oil in foundry goods stud position with the method for stud.In the process debugging process of integral cast steel axle housing, though adopted the stud of different size, different structure to carry out lot of test, bad during the situation fashion of fuel permeation test, can't guarantee still aborning that casting quality is all qualified.Because there is the fluctuation of certain amplitude in liquid steel temperature in the process of pouring cast part, cause the employed stud of part foundry goods to be fused into one fully with the foundry goods body.
Summary of the invention
The utility model is to the deficiency that exists in the background technology, and the technical problem that solve is: a kind of device of taking limit method to realize preventing the core come-up is provided.
The utility model is for solving the problems of the technologies described above; The technical scheme of taking is: a kind of device that prevents the core come-up; Comprise drag box, following sand mold, core; Its improvement is: also comprise adding long bolt, cross bar and securing member, cross bar leans on the bottom of drag box mutually, and the kink at cross bar two ends embeds in the following sand mold;
Drag box, following sand mold, core three's center adds long bolt one end to be connected with cross bar from bottom to top in order through adding long bolt, and an other end passes core and is connected with fastener threads.
Further, saidly add this end that long bolt is connected with cross bar and be provided with crotch portion, the termination of crotch portion contacts with the bottom of drag box, and cross bar passes the hole that forms between the bottom of crotch portion and drag box.
Further, said drag box is connected to form by a plurality of case retainings side by side.
The utility model compared with prior art, beneficial effect is: adopt to add long bolt, cross bar and securing member compound mode and realize the spacing of core, avoid core come-up in the casting process, thereby replace stud.In the process of integral cast steel axle housing is produced, thoroughly eliminate casting leakage oil defective because of using stud to cause, technological operation is convenient and simple.
Description of drawings
Fig. 1 is the structural representation that the utility model is used;
Fig. 2 is that the A of Fig. 1 is to view.
Wherein: cope 1, go up sand mold 2, core 3, axle housing foundry goods 4, down sand mold 5, drag box 6, case retaining 6.1, securing member 7, cross bar 8, kink 8.1, add long bolt 9, crotch portion 9.1.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further explain.
See Fig. 1 to shown in Figure 2, the device that this prevents the core come-up comprises drag box 6, sand mold 5, core 3 down, also comprises adding long bolt 9, cross bar 8 and securing member 7, and cross bar 8 leans on the bottom of drag box 6 mutually, under the kink 8.1 at cross bar 8 two ends embeds in the sand mold 5; Drag box 6, following sand mold 5, core 3 threes' center adds long bolt 9 one ends to be connected with cross bar 8 from bottom to top in order through adding long bolt 9, and an other end passes core 3 and is threaded with securing member 7.
After securing member 7 is screwed, just limited the displacement of core 3, played preventing the effect that floats.Securing member 7 can be selected the tep reel nut for use, on core 3, offers the technology slotted eye in addition, and securing member 7 is arranged in this slotted eye.
Add this end that long bolt 9 is connected with cross bar 8 and be provided with crotch portion 9.1, the termination of crotch portion 9.1 contacts with the bottom of drag box 6, and cross bar 8 passes the hole that forms between the bottom of crotch portion 9.1 and drag box 6.
The basic procedure of technological operation:
(1) when playing sand mold 5 moulding, will add the preformed hole that long bolt 9 is put into drag;
(2) when moulding is complete, with cross bar 8 be placed on one of them casees retaining 6.1 of drag box 6 about two adjacent tank keep off the upper limb of 6.1 bottoms and kink 8.1 be pressed in the drag box 6 (and sand mold 5) down.
(3) molding, the crotch portion 9.1 that will add long bolt 9 withholds after on the cross bar 8, drag box 6 and following sand mold 5 that the moulding of overturning together is complete;
(4) put into core 3, adopt securing member 7 fastening cores 3, make it remain on needed position.
(5) after last sand mold 2 and following sand mold 5 mould assembling, the molten steel of pouring cast part is produced qualified axle housing foundry goods 4.
The utility model adopts and adds the spacing of long bolt, cross bar and securing member compound mode realization core, avoids core come-up in the casting process, thereby replaces stud.In the process of integral cast steel axle housing is produced, thoroughly eliminate casting leakage oil defective because of using stud to cause, technological operation is convenient and simple.
Claims (3)
1. device that prevents core come-up; Comprise drag box (6), following sand mold (5), core (3); It is characterized in that: also comprise adding long bolt (9), cross bar (8) and securing member (7); Cross bar (8) leans on the bottom of drag box (6) mutually, and the kink (8.1) at cross bar (8) two ends embeds in the following sand mold (5);
Drag box (6), following sand mold (5), core (3) three's center adds long bolt (9) one ends to be connected with cross bar (8) from bottom to top in order through adding long bolt (9), and an other end passes core (3) and is threaded with securing member (7).
2. the device that prevents the core come-up according to claim 1; It is characterized in that: saidly add this end that long bolt (9) is connected with cross bar (8) and be provided with crotch portion (9.1); The termination of crotch portion (9.1) contacts with the bottom of drag box (6), and cross bar (8) passes the hole that forms between the bottom of crotch portion (9.1) and drag box (6).
3. the device that prevents the core come-up according to claim 2, it is characterized in that: said drag box (6) keeps off (6.1) by a plurality of casees and connects to form side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205435073U CN202343882U (en) | 2011-12-22 | 2011-12-22 | Device for preventing sand core from floating upwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205435073U CN202343882U (en) | 2011-12-22 | 2011-12-22 | Device for preventing sand core from floating upwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343882U true CN202343882U (en) | 2012-07-25 |
Family
ID=46532910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205435073U Expired - Fee Related CN202343882U (en) | 2011-12-22 | 2011-12-22 | Device for preventing sand core from floating upwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343882U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997687A (en) * | 2012-12-24 | 2013-03-27 | 姚会元 | Bottom ring for submerged arc furnace and manufacturing method thereof |
| CN104493102A (en) * | 2015-01-16 | 2015-04-08 | 广东富华铸锻有限公司 | Duplex multi-core-head sand core for preventing core lift |
| CN104907497A (en) * | 2015-06-05 | 2015-09-16 | 共享装备有限公司 | External multiple-core casting method for oblique column casting |
| CN108273961A (en) * | 2018-03-31 | 2018-07-13 | 盐城永鑫机械有限公司 | A kind of casting mould of front axle housing body |
| CN109202015A (en) * | 2018-11-14 | 2019-01-15 | 安徽应流集团霍山铸造有限公司 | A kind of pump body cast sandbox and its sand core |
-
2011
- 2011-12-22 CN CN2011205435073U patent/CN202343882U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997687A (en) * | 2012-12-24 | 2013-03-27 | 姚会元 | Bottom ring for submerged arc furnace and manufacturing method thereof |
| CN104493102A (en) * | 2015-01-16 | 2015-04-08 | 广东富华铸锻有限公司 | Duplex multi-core-head sand core for preventing core lift |
| CN104907497A (en) * | 2015-06-05 | 2015-09-16 | 共享装备有限公司 | External multiple-core casting method for oblique column casting |
| CN108273961A (en) * | 2018-03-31 | 2018-07-13 | 盐城永鑫机械有限公司 | A kind of casting mould of front axle housing body |
| CN109202015A (en) * | 2018-11-14 | 2019-01-15 | 安徽应流集团霍山铸造有限公司 | A kind of pump body cast sandbox and its sand core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20171222 |