CN103182484A - 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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- CN103182484A CN103182484A CN2013101228006A CN201310122800A CN103182484A CN 103182484 A CN103182484 A CN 103182484A CN 2013101228006 A CN2013101228006 A CN 2013101228006A CN 201310122800 A CN201310122800 A CN 201310122800A CN 103182484 A CN103182484 A CN 103182484A
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- sand
- shooting head
- lift
- export
- upper valve
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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, especially a kind of lift sand-shooting head adds sand mechanism automatically, and it belongs to the Iron Mould Coated Sand casting field.
Background technology
The existing sand-shooting head that covers the sand molding machine is stationary structure or moves horizontally structure, there is not the displacement on the vertical direction, sculpting method is: sand-shooting head, the swage that is heated to uniform temperature and mould lay respectively at three positions of upper, middle and lower, the lifting mechanism of below lifts mould, swage successively by being in, and compress the sand-shooting head lower surface, realize the fitting tightly of three after, with the compressed air of certain pressure, precoated sand is blown in the gap of mould and swage moulding sclerosis rapidly by sand-shooting head.
Owing to penetrate sand and finish at every turn, all to add sand for sand-shooting head, in order to avoid because of sand quantity not sufficient in the sand-shooting head, and causing penetrating the sand molding failure next time, fixed sand-shooting head generally adopts buoyant spheres as check valve, controls whether to add sand, the horizontal movable type sand-shooting head generally adopts the flashboard push-pull mechanism to realize adding sand mouth ground and opens with closed, these two kinds add sand mechanism and are stationary structure or move horizontally structure, and produce and need along with modern crafts, manually add the demand that the sand mode can not satisfy people.
China Patent No. 200820085553.1 discloses the utility model patent that a kind of name is called " a kind of cover sand molding machine add sand mechanism ", it comprises sand hopper and blasting unit, sand hopper is connected with blasting unit by the check valve that an energy is opened according to draught head at the sand export place, check valve comprises Connection Block and float ball, this patent blasting unit is fixed, so it can not carry out lifting, still has above-mentioned defective.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the defective that prior art exists, and a kind of reasonable in design is provided, and adds sand mechanism automatically by adopting the lift sand-shooting head, reduced the cost of enterprise, improved production efficiency.
The present invention addresses the above problem the technical scheme that adopts: a kind of lift sand-shooting head adds sand mechanism automatically, comprise brace summer, screw rod and locking nut, it is characterized in that: also comprise the 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 drives by the lifting on the brace summer and realizes motion, the 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, open in the non-order of finishing bottom spool and upper valve core under the sand state of penetrating, molding sand is flowed in the lift sand-shooting head by sand hopper by deadweight, the descending motion of lift sand-shooting head, finish the closing in sequence of upper valve core and bottom spool, realization stops to add sand and can further finish and penetrate the sand action, fixedly has lifting to drive on the brace summer, and the lift sand-shooting head drives by lifting and realizes motion.
Be provided with down back-moving spring between lower valve base of the present invention and the bottom spool, be provided with upper reset spring between upper valve core and the guide holder, the compressive tension of this upper reset spring is greater than the described compressive tension of back-moving spring down; Upper reset spring is convenient to realize different duties with following back-moving spring, when the compressive tension of upper reset spring greater than the compressive tension of back-moving spring down, bottom spool is compressed, sand inlet is opened, if the compressive tension of upper reset spring is not more than down back-moving spring tension force, then upper valve core is opened earlier, will produce leakage sand.
Bottom spool of the present invention and upper valve core are on same axis; Be convenient to the descending motion of lift sand-shooting head, finish the closing in sequence of bottom spool and upper valve core, realization stops to add sand and can further finish and penetrate the sand action.
Bottom spool of the present invention and lower valve base flexibly connect; Be convenient to bottom spool and realize moving up and down at lower valve base, realize adding automatically the sand process better.
Upper valve core of the present invention and guide holder flexibly connect; Be convenient to upper valve core and realize moving up and down at guide holder, realize adding automatically the sand process better.
Bottom spool of the present invention is provided with screw rod and locking nut; Screw rod is not touched the upper valve core head, the sand inlet closure, screw head and upper valve core head prop up, when the compressive tension of upper reset spring greater than the compressive tension of back-moving spring down, bottom spool is compressed, sand inlet is opened, locking nut plays fixation.
Sand hopper of the present invention is provided with first sand export, and this first sand export is circular configuration, and guide holder is provided with second sand export, and lower valve base is provided with the 3rd sand export, and second sand export and the 3rd sand export be structure radially all; Circular configuration and radial structure are in order to make in the more smooth and easy inflow lift of the molding sand sand-shooting head in the sand hopper.
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 guarantee wholely to add the sand process can not to produce molding sand excessive, by adjusting bottom spool length to adjusting the screw rod spinning in and out, with the compression depth of control upper valve core, thereby regulates the sand flow amount that adds.
Upper valve core of the present invention and bottom spool all are frustum type, and bottom spool has been provided with screwed hole; Screwed hole is used for screw rod is installed, and carries out next step better and penetrates the sand action.
Upper valve base of the present invention is provided with the 4th sand export, and the minimum place of the 4th sand export diameter is smaller or equal to the minimum place of the sand inlet on described lift sand-shooting head diameter; 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, add sand mechanism automatically by adopting the lift sand-shooting head, and reduced the cost of enterprise, improved production efficiency.
2, the ascending motion of lift sand-shooting head is finished bottom spool and the order unlatching of upper valve core ground non-penetrating under the sand state, molding sand is flowed in the sand-shooting head by sand hopper by deadweight.
3, upper valve core and bottom spool ground closing in sequence are finished in the descending motion of lift sand-shooting head, and realization stops to add sand and can further finish and penetrate the sand action.
4, the sequentially-operating of upper valve core and bottom spool and the lift sand-shooting head top recessed taper type structure of sand inlet outer surface can guarantee wholely to add the sand process can not to produce molding sand excessive.
5, regulate bottom spool length by screw rod, with the compression depth of control upper valve core, thereby regulate the sand flow amount that adds.
Description of drawings
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.
Among the figure: lift sand-shooting head 1, lower valve base 2, following 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 drives 12, brace summer 13, the first sand export I, the second sand export II, the 3rd sand export III, the 4th sand export IV, sand inlet V.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Referring to Fig. 1-Fig. 4, present embodiment comprises lift sand-shooting head 1, lifting driving 12, sand hopper 11 and brace summer 13, lift sand-shooting head 1 drives 12 by lifting and realizes moving up and down, lift sand-shooting head 1 is positioned at the below of brace summer 13, lifting drives 12 and is fixed on the brace summer 13, sand hopper 11 is installed in the top of lift sand-shooting head 1, and sand hopper 11 is connected with brace summer 13.
Be connected with lower valve base 2 and bottom spool 4 on the lift sand-shooting head 1, the sand inlet V is installed on the lift sand-shooting head 1, this sand inlet V is recessed taper type, between lower valve base 2 and the bottom spool 4 back-moving spring 3 is installed down, has screwed hole on the bottom spool 4, screw rod 6 is by locking nut 5 screwed hole of packing into, bottom spool 4 can be realized moving up and down at lower valve base 2, lower valve base 2 is connected with the 3rd sand export III, and the 3rd sand export III is structure radially, and bottom spool 4 is frustum type.
Be connected with upper valve core 7 on the sand hopper 11, upper valve base 9 and guide holder 10, between upper valve core 7 and the guide holder 10 upper reset spring 8 is installed, upper valve core 7 can be realized moving up and down at guide holder 10, be connected with the first sand export I on the sand hopper 11, the first sand export I is circular configuration, upper valve core 7 is frustum type, have the 4th sand export IV on the upper valve base 9, the minimum place of the 4th sand export IV diameter is smaller or equal to the minimum place of the sand inlet V on the described lift sand-shooting head 1 diameter, upper valve core 7 is vertically coaxial in the locus with bottom spool 4, be connected with the second sand export II on the guide holder 10, the second sand export II is structure radially, and the compressive tension of upper reset spring 8 is greater than the compressive tension of following back-moving spring 3.
This enforcement is preferred, and sand hopper 11 bottoms have the first sand export I, and the 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, and the second sand export II and the 3rd sand export III be structure radially all.
This enforcement is preferred, and upper valve core 7 heads are frustum type, and bottom spool 4 heads are frustum type and have 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 minimum place of the 4th sand export IV on the upper valve base 9 diameter is smaller or equal to the minimum place of lift sand-shooting head 1 top sand inlet V diameter.
Referring to Fig. 2-Fig. 4, the duty that lift sand-shooting head 1 rises successively, during use, lift sand-shooting head 1 drives 12 drives by the lifting that is installed on the brace summer 13, realizes the elevating movement of lift sand-shooting head 1, original state is: lift sand-shooting head 1 is finished one and is taken turns the sand process of penetrating, preparation is promoted to a high position and adds sand, and at this moment, the screw rod 6 of bottom spool 4 heads does not touch upper valve core 7 heads, the sand inlet V is in closure state, and the 4th sand export IV also is in closure state; Lift sand-shooting head 1 continues to rise, at this moment, screw rod 6 heads and upper valve core 7 heads prop up, when the compressive tension of upper reset spring 8 greater than the compressive tension of back-moving spring 3 down, bottom spool 4 is compressed, the 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 still be closure; Lift sand-shooting head 1 further rises again, at this moment, the compression stress that upper reset spring 8 is subjected to is during greater than self tension force, the 4th sand export IV is opened, and bottom spool 4 is by further compressed, and the size of sand inlet V also increases thereupon, and molding sand flows into the sand inlet V smoothly by the 4th sand export IV under the gravity effect, for lift sand-shooting head 1 adds sand, after adding sand and finishing, lift sand-shooting head 1 descends, according to above-mentioned principle, upper valve core 7 is under the tension force effect of upper reset spring 8, with the 4th sand export IV closure, bottom spool 4 is under the tension force effect of following back-moving spring 3, with sand inlet V closure thereafter earlier, lift sand-shooting head 1 is finished the whole sand process that adds automatically, prepares next round and penetrates sand.
The recessed taper type structure of the sequentially-operating of upper valve core 7 and bottom spool 4 and sand inlet V can guarantee wholely to add the sand process can not to produce molding sand excessive, adjust bottom spool 4 length by screw rod 6, with the compression depth of control upper valve core 7, add sand flow amount size thereby regulate.
Below only be a specific embodiment described in this specification, can increase device in this invention, allly conceive equivalence or the simple change that described structure, feature and material are done according to patent of the present invention, be included in the protection domain of patent of the present invention.
Claims (10)
1. a lift sand-shooting head adds sand mechanism automatically, comprise brace summer, screw rod and locking nut, it is characterized in that: comprise that also 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 drives by the lifting on the brace summer and realizes motion, the 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 also is connected with upper valve core, upper valve base and guide holder.
2. lift sand-shooting head according to claim 1 adds sand mechanism automatically, it is characterized in that: be provided with down back-moving spring between described lower valve base and the bottom spool, be provided with upper reset spring between upper valve core and the guide holder, the compressive tension of this upper reset spring is greater than the described compressive tension of back-moving spring down.
3. lift sand-shooting head according to claim 1 and 2 adds sand mechanism automatically, it is characterized in that: described bottom spool and upper valve core are on same axis.
4. lift sand-shooting head according to claim 3 adds sand mechanism automatically, it is characterized in that: described bottom spool and lower valve base flexibly connect.
5. lift sand-shooting head according to claim 2 adds sand mechanism automatically, it is characterized in that: described upper valve core and guide holder flexibly connect.
6. lift sand-shooting head according to claim 3 adds sand mechanism automatically, it is characterized in that: described bottom spool is provided with screw rod and locking nut.
7. lift sand-shooting head according to claim 1 adds sand mechanism automatically, it is characterized in that: described sand hopper is provided with first sand export, this first sand export is circular configuration, guide holder is provided with second sand export, lower valve base is provided with the 3rd sand export, and second sand export and the 3rd sand export be structure radially all.
8. lift sand-shooting head according to claim 1 adds sand mechanism automatically, it is characterized in that: described lift sand-shooting head is provided with sand inlet, and this sand inlet is recessed taper type.
9. lift sand-shooting head according to claim 1 adds sand mechanism automatically, it is characterized in that: described upper valve core and bottom spool all are frustum type, and bottom spool has been provided with screwed hole.
10. lift sand-shooting head according to claim 1 adds sand mechanism automatically, it is characterized in that: described upper valve base is provided with the 4th sand export, and the minimum place of the 4th sand export diameter is smaller or equal to the minimum place of the sand inlet on described lift sand-shooting head diameter.
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 |
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| Publication Number | Publication Date |
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| CN103182484A true CN103182484A (en) | 2013-07-03 |
| CN103182484B CN103182484B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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Citations (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 |
-
2013
- 2013-04-10 CN CN201310122800.6A patent/CN103182484B/en active Active
Patent Citations (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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| CN103182484B (en) | 2015-04-29 |
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