CN103182484B - Automatic sand adding mechanism for lift type sand shooting head - Google Patents
Automatic sand adding mechanism for lift type sand shooting head Download PDFInfo
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- CN103182484B CN103182484B CN201310122800.6A CN201310122800A CN103182484B CN 103182484 B CN103182484 B CN 103182484B CN 201310122800 A CN201310122800 A CN 201310122800A CN 103182484 B CN103182484 B CN 103182484B
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- sand
- shooting head
- lift
- upper valve
- export
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Abstract
The invention relates to an automatic sand adding mechanism for a lift type sand shooting head and belongs to the field of casting of sand-faced iron mould. The sand adding mechanism comprises a support beam, a lift type sand shooting head, a sand hopper and a lifting drive, wherein the lift type sand shooting head is positioned below the support beam and realizes movement through the lifting of the support beam; a lower valve seat and a lower valve core are arranged on the lift type sand shooting head; the sand hopper is arranged above the lift type sand shooting head, is connected with the support beam, and is further connected with an upper valve core, an upper valve seat and a guiding seat. The automatic sand adding mechanism reduces the cost of enterprises and improves the production efficiency.
Description
Technical field
The present invention relates to a kind of mechanism, the automatic Jia Sha mechanism of especially a kind of lift sand-shooting head, it belongs to Sand-Faced Metal Mould Casting field.
Background technology
The existing sand-shooting head covering sand molding machine is stationary structure or horizontal shift structure, there is no the displacement on vertical direction, sculpting method is: sand-shooting head, the swage being heated to uniform temperature and mould lay respectively at upper, middle and lower three positions, successively mould, swage are lifted by the lifting mechanism being in bottom, and compress sand-shooting head lower surface, after realizing the fitting tightly of three, with the compressed air of certain pressure, by sand-shooting head, precoated sand is blown in the gap of mould and swage, rapid shaping sclerosis.
Complete owing to penetrating sand at every turn, all to add sand for sand-shooting head, in order to avoid because of sand quantity not sufficient in sand-shooting head, and cause penetrating sand molding failure, fixed sand-shooting head generally adopts buoyant spheres as check valve, controls whether to add sand; next time horizontal movable type sand-shooting head generally adopts flashboard push-pull mechanism to realize opening with adding sand mouth with closed, this Liang Zhongjia sand mechanism is stationary structure or horizontal shift structure, and along with modern crafts need of production, manually adds the demand that sand mode can not meet people.
China Patent No. 200820085553.1 discloses the utility model patent that a kind of name is called " a kind of Jia Sha mechanism covering sand molding machine ", it comprises sand hopper and blasting unit, the check valve that sand hopper is opened according to draught head by an energy at sand export place is connected with blasting unit, check valve comprises Connection Block and float ball, this patent blasting unit is fixed, therefore it can not be elevated, still there is above-mentioned defect.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defect that prior art exists, and provides a kind of reasonable in design, by adopting the automatic Jia Sha mechanism of lift sand-shooting head, reducing the cost of enterprise, improve production efficiency.
The present invention's adopted technical scheme that solves the problem is: the automatic Jia Sha mechanism of a kind of lift sand-shooting head, comprise brace summer, screw rod and locking nut, it is characterized in that: also comprise lift sand-shooting head, sand hopper and lifting drive, described lift sand-shooting head is positioned at the below of brace summer, this lift sand-shooting head is driven by the lifting on brace summer and realizes motion, lift sand-shooting head is provided with lower valve base and bottom spool, sand hopper is arranged on the top of lift sand-shooting head, sand hopper is connected with described brace summer, sand hopper also with upper valve core, upper valve base is connected with guide holder, the ascending motion of lift sand-shooting head, non-penetrate sand state under complete bottom spool and upper valve core order open, molding sand flows in lift sand-shooting head by deadweight by sand hopper, the descending motion of lift sand-shooting head, complete the closing in sequence of upper valve core and bottom spool, realize stopping add sand and can complete further and penetrate sand action, brace summer is fixed with lifting and drives, lift sand-shooting head is driven by lifting and realizes motion.
Be provided with lower back-moving spring between lower valve base of the present invention and bottom spool, be provided with upper reset spring between upper valve core and guide holder, the compressive tension of this upper reset spring is greater than the compressive tension of described lower back-moving spring; Upper reset spring and lower back-moving spring are convenient to realize different duties, when the compressive tension of upper reset spring is greater than the compressive tension of lower back-moving spring, bottom spool is compressed, sand inlet is opened, if the compressive tension of upper reset spring is not more than lower back-moving spring tension force, then upper valve core is first opened, and will produce leakage sand.
Bottom spool of the present invention and upper valve core are on the same axis; Be convenient to the descending motion of lift sand-shooting head, complete the closing in sequence of bottom spool and upper valve core, realize stopping and adding sand and can complete further and penetrate sand action.
Bottom spool of the present invention is flexibly connected with lower valve base; Be convenient to bottom spool realize moving up and down on lower valve base, realize better automatically adding sand process.
Upper valve core of the present invention is flexibly connected with guide holder; Be convenient to upper valve core realize moving up and down on guide holder, realize better automatically adding sand process.
Bottom spool of the present invention is provided with screw rod and locking nut; Screw rod does not touch upper valve core head, and sand inlet closes, and screw head and upper valve core head prop up, and when the compressive tension of upper reset spring is greater than the compressive tension of lower back-moving spring, bottom spool is compressed, and sand inlet unlatching, locking nut plays fixation.
Sand hopper of the present invention is provided with the first sand export, and this first sand export is circular configuration, and guide holder is provided with the second sand export, and lower valve base is provided with the 3rd sand export, the second sand export and the 3rd sand export structure all radially; Circular configuration and radial structure are to make in the more smooth and easy inflow lift of the molding sand in sand hopper sand-shooting head.
Lift sand-shooting head of the present invention is provided with sand inlet, and this sand inlet is recessed taper type; The recessed taper type structure of sand inlet can ensure wholely to add sand process can not to produce molding sand excessive, by adjusting bottom spool length to the spinning in and out of adjustment screw rod, to control the compression depth of upper valve core, thus regulates and adds sand flow amount.
Upper valve core of the present invention and bottom spool are all in frustum type, and bottom spool has been provided with screwed hole; Screwed hole, for installing screw rod, carries out next step better and penetrates sand action.
Upper valve base of the present invention is provided with the 4th sand export, and the 4th sand export minimum place diameter is less than or equal to the sand inlet minimum place diameter on described lift sand-shooting head; So that molding sand is from the smooth and easy inflow sand inlet of the 4th sand export.
The present invention compared with prior art has the following advantages and effect: 1, reasonable in design, by adopting the automatic Jia Sha mechanism of lift sand-shooting head, reducing the cost of enterprise, improve production efficiency.
2, the ascending motion of lift sand-shooting head, non-penetrate sand state under complete bottom spool and upper valve core ground order open, molding sand by deadweight by sand hopper inflow sand-shooting head in.
3, the descending motion of lift sand-shooting head, completes upper valve core and bottom spool ground closing in sequence, realizes stopping and adding sand and can complete further and penetrate sand action.
4, the sequentially-operating of upper valve core and bottom spool and lift sand-shooting head top sand inlet outer surface recessed taper type structure can ensure wholely to add sand process can not to produce molding sand excessive.
5, regulate bottom spool length by screw rod, to control the compression depth of upper valve core, thus adjustment adds sand flow amount.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is working state structure schematic diagram one of the present invention.
Fig. 3 is working state structure schematic diagram two of the present invention.
Fig. 4 is working state structure schematic diagram three of the present invention.
In figure: lift sand-shooting head 1, lower valve base 2, lower back-moving spring 3, bottom spool 4, locking nut 5, screw rod 6, upper valve core 7, upper reset spring 8, upper valve base 9, guide holder 10, sand hopper 11, lifting driving 12, brace summer 13, the first sand export I, second sand export II, 3rd sand export the III, four sand export IV, sand inlet V.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1-Fig. 4, the present embodiment comprises lift sand-shooting head 1, lifting driving 12, sand hopper 11 and brace summer 13, lift sand-shooting head 1 realizes moving up and down by lifting driving 12, lift sand-shooting head 1 is positioned at the below of brace summer 13, lifting driving 12 is fixed on brace summer 13, sand hopper 11 is arranged on the top of lift sand-shooting head 1, and sand hopper 11 is connected with brace summer 13.
Lift sand-shooting head 1 is connected with lower valve base 2 and bottom spool 4, lift sand-shooting head 1 is provided with sand inlet V, this sand inlet V is in recessed taper type, be provided with lower back-moving spring 3 between lower valve base 2 and bottom spool 4, bottom spool 4 has screwed hole, screw rod 6 loads screwed hole by locking nut 5, bottom spool 4 can realize moving up and down on lower valve base 2, lower valve base 2 is connected with the 3rd sand export the III, three sand export III structure radially, and bottom spool 4 is in frustum type.
Sand hopper 11 is connected with upper valve core 7, upper valve base 9 and guide holder 10, upper reset spring 8 is installed between upper valve core 7 and guide holder 10, upper valve core 7 can realize moving up and down on guide holder 10, sand hopper 11 is connected with the first sand export I, first sand export I is circular configuration, upper valve core 7 is in frustum type, upper valve base 9 has the 4th sand export IV, 4th sand export IV minimum place diameter is less than or equal to the sand inlet V minimum place diameter on described lift sand-shooting head 1, upper valve core 7 and bottom spool 4 are vertically coaxial on locus, guide holder 10 is connected with the second sand export II, second sand export II structure radially, the compressive tension of upper reset spring 8 is greater than the compressive tension of lower back-moving spring 3.
This enforcement is preferred, and have the first sand export I bottom sand hopper 11, described first sand export I is circular configuration, and guide holder 10 has the second sand export II, and lower valve base 2 has the 3rd sand export III, second sand export II and the 3rd sand export III structure all radially.
This enforcement is preferred, and upper valve core 7 head is frustum type, and bottom spool 4 head is frustum type and has screwed hole.
This enforcement is preferred, and lift sand-shooting head 1 top sand inlet V outer surface is recessed taper type.
This enforcement is preferred, and the 4th sand export IV minimum place diameter on upper valve base 9 is less than or equal to sand inlet V minimum place, lift sand-shooting head 1 top diameter.
See Fig. 2-Fig. 4, the duty that lift sand-shooting head 1 rises successively, during use, lift sand-shooting head 1 drives 12 to drive by the lifting be arranged on brace summer 13, realizes the elevating movement of lift sand-shooting head 1, original state is: lift sand-shooting head 1 completes one and takes turns core-shooting process, preparation is promoted to a high position and adds sand, and now, the screw rod 6 of bottom spool 4 head does not touch upper valve core 7 head, sand inlet V is in closure state, and the 4th sand export IV is also in closure state, lift sand-shooting head 1 continues to rise, now, screw rod 6 head and upper valve core 7 head prop up, when the compressive tension of upper reset spring 8 is greater than the compressive tension of lower back-moving spring 3, bottom spool 4 is compressed, sand inlet V is opened, and upper valve core 7 is under the tension force effect of upper reset spring 8, and the 4th sand export IV is still closed, lift sand-shooting head 1 rises further again, now, when the compression stress that upper reset spring 8 is subject to is greater than own tension, 4th sand export IV is opened, and bottom spool 4 is compressed further, the size of sand inlet V also increases thereupon, molding sand flows into sand inlet V smoothly by the 4th sand export IV under gravity, for lift sand-shooting head 1 adds sand, add after sand completes, lift sand-shooting head 1 declines, according to above-mentioned principle, upper valve core 7 is under the tension force effect of upper reset spring 8, first the 4th sand export IV is closed, thereafter bottom spool 4 is under the tension force effect of lower back-moving spring 3, sand inlet V is closed, lift sand-shooting head 1 completes and wholely automatically adds sand process, prepare next round and penetrate sand.
The sequentially-operating of upper valve core 7 and bottom spool 4 and the recessed taper type structure of sand inlet V can ensure wholely to add sand process can not to produce molding sand excessive, bottom spool 4 length is adjusted by screw rod 6, to control the compression depth of upper valve core 7, thus adjustment adds sand uninterrupted.
Below be only a specific embodiment described in this description, can increase device in this invention, all equivalences of doing according to structure, feature and the material described in inventional idea of the present invention or simple change, be included in the protection domain of patent of the present invention.
Claims (8)
1. the automatic Jia Sha mechanism of lift sand-shooting head, comprise brace summer, screw rod and locking nut, it is characterized in that: also comprise lift sand-shooting head, sand hopper and lifting and drive, described lift sand-shooting head is positioned at the below of brace summer, this lift sand-shooting head is driven by the lifting on brace summer and realizes motion, lift sand-shooting head is provided with lower valve base and bottom spool, sand hopper is arranged on the top of lift sand-shooting head, sand hopper is connected with described brace summer, and sand hopper is also connected with upper valve core, upper valve base and guide holder; Be provided with lower back-moving spring between described lower valve base and bottom spool, be provided with upper reset spring between upper valve core and guide holder, the compressive tension of this upper reset spring is greater than the compressive tension of described lower back-moving spring; Described bottom spool and upper valve core are on the same axis.
2. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, is characterized in that: described bottom spool is flexibly connected with lower valve base.
3. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, is characterized in that: described upper valve core is flexibly connected with guide holder.
4. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, is characterized in that: described bottom spool is provided with screw rod and locking nut.
5. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, it is characterized in that: described sand hopper is provided with the first sand export, this first sand export is circular configuration, guide holder is provided with the second sand export, lower valve base is provided with the 3rd sand export, the second sand export and the 3rd sand export structure all radially.
6. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, it is characterized in that: described lift sand-shooting head is provided with sand inlet, this sand inlet is recessed taper type.
7. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, is characterized in that: described upper valve core and bottom spool are all in frustum type, and bottom spool is provided with screwed hole.
8. the automatic Jia Sha mechanism of lift sand-shooting head according to claim 1, is characterized in that: described upper valve base is provided with the 4th sand export, and the 4th sand export minimum place diameter is less than or equal to the sand inlet minimum place diameter on described lift sand-shooting head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122800.6A CN103182484B (en) | 2013-04-10 | 2013-04-10 | Automatic sand adding mechanism for lift type sand shooting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122800.6A CN103182484B (en) | 2013-04-10 | 2013-04-10 | Automatic sand adding mechanism for lift type sand shooting head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103182484A CN103182484A (en) | 2013-07-03 |
| CN103182484B true CN103182484B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310122800.6A Active CN103182484B (en) | 2013-04-10 | 2013-04-10 | Automatic sand adding mechanism for lift type sand shooting head |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832542A (en) * | 1981-08-21 | 1983-02-25 | Sintokogio Ltd | Supplying device for sand in blowing type mold forming device |
| JP4098766B2 (en) * | 2004-09-29 | 2008-06-11 | 株式会社アイメタルテクノロジー | Blow head device for foundry sand |
| CN201179551Y (en) * | 2008-04-24 | 2009-01-14 | 浙江省机电设计研究院有限公司 | Sand adding mechanism of sand cover molding machine |
| CN202252004U (en) * | 2011-09-30 | 2012-05-30 | 壮大材料科技(杭州)有限公司 | Two-way valve |
| CN203221186U (en) * | 2013-04-10 | 2013-10-02 | 浙江省机电设计研究院有限公司 | Automatic sand feeding mechanism for lift type sand shooting head |
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2013
- 2013-04-10 CN CN201310122800.6A patent/CN103182484B/en active Active
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| CN103182484A (en) | 2013-07-03 |
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