CN201179551Y - Sand adding mechanism of sand cover molding machine - Google Patents
Sand adding mechanism of sand cover molding machine Download PDFInfo
- Publication number
- CN201179551Y CN201179551Y CNU2008200855531U CN200820085553U CN201179551Y CN 201179551 Y CN201179551 Y CN 201179551Y CN U2008200855531 U CNU2008200855531 U CN U2008200855531U CN 200820085553 U CN200820085553 U CN 200820085553U CN 201179551 Y CN201179551 Y CN 201179551Y
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- China
- Prior art keywords
- sand
- connection block
- molding machine
- hopper
- float ball
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- Expired - Lifetime
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses a sand adding mechanism for a sand coated molding machine, which comprises a sand hopper and a sand shooting cylinder. A sand outlet is arranged at the bottom of the sand hopper, and the sand hopper is connected with the sand shooting cylinder at the sand outlet by a check valve which can be opened according to pressure difference. The sand adding mechanism for the sand coated molding machine realizes a closed sand adding process, namely, sands are not contacted with the external world from the sand hopper to the sand shooting cylinder, and the sand adding mechanism has strong sealing performance, thereby completely eliminating the sand leakage phenomenon existed in the prior sand adding process. The sand adding mechanism can be caused to have the automatic sand adding function by the one direction conducting function of the check valve, thereby preventing the influence brought by forgetting of sand addition when the sand addition is carried out by manual operation, and the work efficiency of the sand adding mechanism is greatly enhanced. The loss rate of floating balls is low to cause the sand adding mechanism to have long maintenance period, and the sand adding mechanism has the demountable structure, thereby causing the change of the floating balls to be convenient. The sand adding mechanism has simple structure and low part processing requirements.
Description
Technical field
The utility model relates to a kind of sand molding machine that covers, and what relate in particular to that this covers the sand molding machine adds sand mechanism.
Background technology
Cover the sand molding machine add that sand mechanism generally adopts the Z8625 core shooter add sandy plain reason, promptly forms the interior process of blasting unit of packing into of the sand material in the gate control sand hopper by sand hopper, blasting unit and the gate that is arranged in the middle of sand hopper, the blasting unit.Gate is made up of flashboard, flashboard sealing ring, the pneumatic cylinder that pushes away, and realizes switch motion by the pneumatic cylinder driving flashboard that pushes away.When gate was opened, the sand material in the sand hopper was packed under the gravity effect in the blasting unit automatically.Finishing gaza's late gate closes, sand material in the sand hopper can not enter in the blasting unit, the flashboard sealing ring and the flashboard formation that are arranged on this moment below the flashboard are tightly connected, and feed compressed air when penetrating sand in the blasting unit sand material is penetrated, thereby the flashboard sealing ring seals.
Because the flashboard of gate is a plug in construction, so flashboard and flashboard sealing ring be not closely to link to each other but have a fixed gap, otherwise flashboard is not easy to be pushed into and pulls out, and this makes that sand hopper is non-closed area to one section space between the blasting unit.Flashboard is upwards boosted by the compressed air in the blasting unit in penetrating the sand process, original space further enlarges, cause the compressed air in the blasting unit when penetrating sand from this space, to spill, and the sand strip gone out blasting unit, so this sand structure that adds exists and to penetrate the serious problem of sand hourglass sand, the sealing property that adds sand mechanism is low.
Need from sand hopper, add sand when the sand material is not enough in the blasting unit, add sand before, the pneumatic cylinder that pushes away of manually-operated pulls out flashboard, sand hopper and blasting unit are communicated with, and make the sand material blasting unit of packing into; Add sand and finish, the pneumatic cylinder that pushes away of manually-operated pushes in flashboard once more, and sand hopper and blasting unit separate.Manually adding the sand operation wastes time and energy, and is unfavorable for enhancing productivity.In case forget when manually adding the sand operation to add sand, the sand quantity not sufficient will cause and penetrate the sand failure in the blasting unit so.
Flashboard when turnover and the friction of flashboard sealing ring, frictional dissipation the friction of flashboard sealing ring, make the shortening in service life of flashboard sealing ring.Because gate dismounting inconvenience comparatively bothers the replacing of gate sealing ring.The flashboard turnover also goes out the abrasive band in the sand hopper easily.
The utility model content
The technical problems to be solved in the utility model provide a kind of cover the sand molding machine add sand mechanism, it is strong that this adds sand mechanism sealing property, can eliminate the phenomenon that adds sand mechanism leakage sand when realizing adding the sand function.
Another technical problem to be solved in the utility model provide a kind of cover the sand molding machine add sand mechanism, this adds sand mechanism can add sand automatically, need not manually-operated.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: this sand mechanism that adds of covering the sand molding machine comprises sand hopper and blasting unit, described sand hopper bottom has sand export, and described 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.This check valve can utilize the compressed air in the blasting unit when penetrating sand to seal sand export automatically, opens sand export when the air pressure in blasting unit disappears automatically.
As of the present utility model a kind of preferred, described check valve comprises Connection Block and float ball, described Connection Block inner hollow in a tubular form and be provided with the net grid that are used to support float ball, Connection Block and sand hopper are tightly connected, Connection Block and blasting unit are tightly connected, described float ball at Connection Block inner and and Connection Block between have the space, described float ball diameter is greater than the sand export diameter.Float ball is an elastomeric material, and certain elasticity is arranged.Float ball is stopped by the net grid under the nature, and the sand material enters blasting unit by the net grid again from the sand export that the opens wide space between float ball and Connection Block again.Penetrate under the sand state float ball and upwards pushed up to sand hopper,, make float ball be sealed sand export, so whole float ball is limited in Connection Block inside by jack-up because the sand export size is littler than float ball diameter by the compressed air in the blasting unit.Such structure has not only realized unidirectional on-off function, and utilizes the sand export size characteristics littler than float ball diameter to simplify one-way valve structures, and economical with materials reduces production costs.
As a kind of improvement of the present utility model, described Connection Block height is greater than the diameter of float ball.Make float ball not with sand export place crossing on the same level, ensure that sand export has the maximum area that shakes out.
As further improvement of the utility model, described float ball is at the minimum aperture area and the sand export equal and opposite in direction of horizontal plane place and Connection Block.All the flow with the sand export place is identical for flow around the float ball like this, just clogging can not occur, makes to add that the sand process is unobstructed carries out.
Further improve as of the present utility model, described sand hopper is a fillet structure at the sand export place.Float ball is compressed air and has withstood on the sand export place when penetrating sand, seals sand export, thereby sand hopper can effectively reduce the contact stress of float ball at the fillet structure at sand export place, improves the service life of float ball, prolongs the maintenance period that adds sand mechanism.
As of the present utility model further preferred, described net grid are positioned at the Connection Block bottom.This is convenient to the production of Connection Block, and is easy to process.
Further, described net grid radially.Because in the space of the flow path of sand material between float ball and Connection Block, so the operating position of float ball is just being departed from or just is being in the Connection Block center, the position that is used to support float ball like this on the net grid is also being departed from or just is being in the Connection Block center, therefore the net grid adopt radial structure to play the function that can support float ball fully, and easy to process.
Further, described net grid are Y shape structure.This makes the net grid also have the maximum area that shakes out when playing support function, not only guarantees the smooth and easy sand that adds, and can not pile up the sand material on the net grid.
As of the present utility model further preferred, described Connection Block is fixedlyed connected by flange with sand hopper, and described Connection Block is fixedlyed connected by flange with blasting unit.From this add sand mechanism have can be for convenience detach advantage, be convenient to the replacing operation of float ball.
As another kind of improvement the of the present utility model, be provided with sealing ring I between described Connection Block and the sand hopper, be provided with sealing ring II between described Connection Block and the blasting unit.This has improved the sealing property that adds sand mechanism greatly.
The utility model adopts technique scheme, this sand mechanism that adds of covering the sand molding machine realizes the closed sand process that adds, promptly do not contact with the external world in the process of sand material from the sand hopper to the blasting unit, sealing property is strong, thereby this adds sand mechanism and has eliminated fully and add the leakage sand phenomenon that exists in the sand process in the past.Add the unidirectional conducting function of sand mechanism by check valve and make that adding sand mechanism has the function that adds sand automatically, forget when preventing to add sand to add the influence that the abrasive band is come, improve the operating efficiency that adds sand mechanism greatly because of manually-operated.The float ball proportion of goods damageds are low, make that to add sand mechanism maintenance period long, and add sand mechanism and have detachable structure, and the replacing of float ball becomes very convenient.And this to add the sand mechanism structure simple, the processing request of parts is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is a kind of structural representation that adds sand mechanism that covers the sand molding machine of the utility model;
Fig. 2 is a kind of working state figure that adds sand mechanism that covers the sand molding machine of the utility model;
Fig. 3 is a kind of structural representation that covers the Connection Block that adds sand mechanism of sand molding machine of the utility model;
Fig. 4 is the A place partial enlarged drawing of Fig. 2.
The specific embodiment
As shown in Figure 1, the sand mechanism that adds of covering the sand molding machine comprises sand hopper 1, blasting unit 2 and check valve.Sand hopper 1 bottom is provided with a sand export 3, and the sand material is launched to be used to place in top; Sand hopper 1 is a fillet structure at sand export 3 places.Blasting unit 2 is provided with an air inlet 4, it and blasting unit 2 internal communication.Check valve comprises Connection Block 5 and float ball 6.Connection Block 5 inside are provided with tubular conduit, and net grid 7 that are used for supporting float ball 6, and these net grid 7 are positioned at Connection Block 5 bottoms, as shown in Figure 3, net grid 7 Y-shaped structures, three branches, 120 degree at interval evenly distribute, and the center of net grid 7 just overlaps with the center of Connection Block 5.It is inner and be positioned at the top of net grid 7 that float ball 6 is positioned at Connection Block 5, and its diameter is less than the diameter of Connection Block 5 inner tubular passages, but the diameter of float ball 6 is greater than the diameter of sand export 3, so have the space all the time between float ball 6 and the Connection Block 5; Float ball 6 adopts elastomeric material, has certain elasticity, thereby can produce deformation.Connection Block 5 height make whole float ball 6 all be positioned at Connection Block 5 inside greater than the diameter of float ball 6.Sand hopper 1 bottom and Connection Block 5 tops are fixed together by flange seal, in order to increase sealing property, also are provided with sealing ring I 8 between sand hopper 1 and Connection Block 5, and Connection Block 5 inner tubular passages are over against sand export 3 simultaneously.Connection Block 5 bottoms are fixedly connected on the blasting unit 2 by flange seal, also for the lift-off seal performance, are provided with sealing ring II 9 between Connection Block 5 and blasting unit 2, and Connection Block 5 inner tubular passages are over against blasting unit 2 inside simultaneously.Float ball 6 is at the edge of largest horizontal cross sectional, and the distance between float ball 6 and the Connection Block 5 is the shortest, so the void area minimum between float ball 6 and the Connection Block 5, the size of this minimum aperture area and sand export 3 equal and opposite in directions.
As shown in Figure 2, when moulding machine need be penetrated sand, compressed air feeds in the blasting unit 2 from air inlet 4, blasting unit 2 internal gas pressures are raise, float ball 6 in the jack-up Connection Block 5 makes float ball 6 be pressed on sand export 3 places simultaneously, because the external and internal pressure difference is very big, float ball 6 will tightly touch sand export 3, isolated sand hopper 1 and blasting unit 2.As shown in Figure 1, penetrate sand and finish, the compressed air in the blasting unit 2 is discharged from air inlet 4, blasting unit 2 inside and outside differential pressures disappear, float ball 6 falls under the effect of gravity, and sand export 3 is opened, and the sand material in sand hopper 1 flows in the blasting unit 2 from the space between Connection Block 5 and the float ball 6.Each like this sand that adds all is to automatically perform after finishing to penetrate sand, makes that adding sand mechanism is achieved the purpose that adds sand automatically.Check valve is closed sand hopper 1 to the space between the blasting unit 2, form one section sealing area, seal sand export 3 back check valves and blasting unit 2 formation one in float ball 6, sealing property improves greatly, thereby the sand material and the compressed air of their inside is all gone out from the sand-shooting head of blasting unit 2 when penetrating sand, has eliminated to penetrate the gas leakage that occurs in the sand process in the past and leak the sand phenomenon.
When penetrating sand, float ball 6 is pressed on sand export 3 places, a certain amount of deformation of float ball 6 generations this moment, as shown in Figure 4, because husky bucket is a fillet structure at sand export 3 places, float ball 6 is bigger with the contact-making surface of sand hopper 1, compare with right-angle structure sand export 3, the contact stress that acts on the float ball 6 is just very little, has reduced the loss of float ball 6 like this, and prolonged the service life of float ball 6.
Claims (10)
1, a kind of cover the sand molding machine add sand mechanism, this adds sand mechanism and comprises sand hopper (1) and blasting unit (2), described sand hopper (1) bottom has sand export (3), and it is characterized in that: described sand hopper (1) is located to be connected with blasting unit (2) by the check valve that an energy is opened according to draught head at sand export (3).
2, according to claim 1 described cover the sand molding machine add sand mechanism, it is characterized in that: described check valve comprises Connection Block (5) and float ball (6), described Connection Block (5) inner hollow in a tubular form and be provided with the net grid (7) that are used to support float ball (6), Connection Block (5) is tightly connected with sand hopper (1), Connection Block (5) is tightly connected with blasting unit (2), described float ball (6) be positioned at Connection Block (5) inner and and Connection Block (5) between have the space, described float ball (6) diameter is greater than sand export (3) diameter.
3, according to claim 2 described cover the sand molding machine add sand mechanism, it is characterized in that: described Connection Block (5) height is greater than the diameter of float ball (6).
4, according to claim 2 or 3 described cover the sand molding machine add sand mechanism, it is characterized in that: described float ball (6) is at the minimum aperture area and sand export (3) equal and opposite in direction of horizontal plane place and Connection Block (5).
According to claim 2 described cover the sand molding machine add sand mechanism, it is characterized in that: described sand hopper (1) locates to be fillet structure at sand export (3).
6, according to claim 2 described cover the sand molding machine add sand mechanism, it is characterized in that: described net grid (7) are positioned at Connection Block (5) bottom.
7, according to claim 2 or 6 described cover the sand molding machine add sand mechanism, it is characterized in that: described net grid (7) are radially.
8, according to claim 2 or 6 described cover the sand molding machine add sand mechanism, it is characterized in that: described net grid (7) are Y shape structure.
9, according to claim 2 or 3 or 6 described cover the sand molding machine add sand mechanism, it is characterized in that: described Connection Block (5) is fixedlyed connected by flange with sand hopper (1), described Connection Block (5) is fixedlyed connected by flange with blasting unit (2).
10, according to claim 2 or 3 or 6 described cover the sand molding machine add sand mechanism, it is characterized in that: be provided with sealing ring I (8) between described Connection Block (5) and the sand hopper (1), be provided with sealing ring II (9) between described Connection Block (5) and the blasting unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200855531U CN201179551Y (en) | 2008-04-24 | 2008-04-24 | Sand adding mechanism of sand cover molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200855531U CN201179551Y (en) | 2008-04-24 | 2008-04-24 | Sand adding mechanism of sand cover molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179551Y true CN201179551Y (en) | 2009-01-14 |
Family
ID=40249055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200855531U Expired - Lifetime CN201179551Y (en) | 2008-04-24 | 2008-04-24 | Sand adding mechanism of sand cover molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179551Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151800A (en) * | 2010-11-16 | 2011-08-17 | 苏州苏铸成套装备制造有限公司 | Sand shooting device |
| CN102615251A (en) * | 2012-03-26 | 2012-08-01 | 苏州明志科技有限公司 | Heat-insulating shooting cylinder |
| CN103182484A (en) * | 2013-04-10 | 2013-07-03 | 浙江省机电设计研究院有限公司 | Automatic sand adding mechanism for lift type sand shooting head |
| CN103302246A (en) * | 2013-06-28 | 2013-09-18 | 苏州明志科技有限公司 | Mounting structure of sand spraying barrel of core making machine |
| CN104190879A (en) * | 2014-09-09 | 2014-12-10 | 侯马市晋烽机械铸造有限公司 | Check valve sand supply device of sand ejector |
| CN105458188A (en) * | 2015-12-10 | 2016-04-06 | 广西玉柴机器股份有限公司 | Method for preventing sand accumulation in sand hopper of core shooter |
| CN107008867A (en) * | 2017-04-18 | 2017-08-04 | 宁夏共享模具有限公司 | A kind of sand-leakage prevention sand shooting nozzle for heavy caliber explosion core mould |
| CN116000248A (en) * | 2022-12-30 | 2023-04-25 | 优铸科技(北京)有限公司 | Sand discharging mechanism for core shooter and core shooter |
| CN116020980A (en) * | 2022-12-30 | 2023-04-28 | 优铸科技(北京)有限公司 | Sand shooting barrel and core shooting machine |
-
2008
- 2008-04-24 CN CNU2008200855531U patent/CN201179551Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151800A (en) * | 2010-11-16 | 2011-08-17 | 苏州苏铸成套装备制造有限公司 | Sand shooting device |
| CN102615251A (en) * | 2012-03-26 | 2012-08-01 | 苏州明志科技有限公司 | Heat-insulating shooting cylinder |
| CN103182484A (en) * | 2013-04-10 | 2013-07-03 | 浙江省机电设计研究院有限公司 | Automatic sand adding mechanism for lift type sand shooting head |
| CN103302246A (en) * | 2013-06-28 | 2013-09-18 | 苏州明志科技有限公司 | Mounting structure of sand spraying barrel of core making machine |
| CN103302246B (en) * | 2013-06-28 | 2016-06-01 | 苏州明志科技有限公司 | A kind of core making machine blasting unit installs structure |
| CN104190879A (en) * | 2014-09-09 | 2014-12-10 | 侯马市晋烽机械铸造有限公司 | Check valve sand supply device of sand ejector |
| CN105458188A (en) * | 2015-12-10 | 2016-04-06 | 广西玉柴机器股份有限公司 | Method for preventing sand accumulation in sand hopper of core shooter |
| CN107008867A (en) * | 2017-04-18 | 2017-08-04 | 宁夏共享模具有限公司 | A kind of sand-leakage prevention sand shooting nozzle for heavy caliber explosion core mould |
| CN116000248A (en) * | 2022-12-30 | 2023-04-25 | 优铸科技(北京)有限公司 | Sand discharging mechanism for core shooter and core shooter |
| CN116020980A (en) * | 2022-12-30 | 2023-04-28 | 优铸科技(北京)有限公司 | Sand shooting barrel and core shooting machine |
| CN116020980B (en) * | 2022-12-30 | 2023-12-01 | 优铸科技(北京)有限公司 | Sand shooting barrel and core shooting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |