CN114433783A - Sand discharging device of sand silo - Google Patents
Sand discharging device of sand silo Download PDFInfo
- Publication number
- CN114433783A CN114433783A CN202210120815.8A CN202210120815A CN114433783A CN 114433783 A CN114433783 A CN 114433783A CN 202210120815 A CN202210120815 A CN 202210120815A CN 114433783 A CN114433783 A CN 114433783A
- Authority
- CN
- China
- Prior art keywords
- sand
- silo
- outlet
- plate
- valve
- 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.)
- Pending
Links
- 239000004576 sand Substances 0.000 title claims abstract description 359
- 238000007599 discharging Methods 0.000 title claims abstract description 46
- 238000007789 sealing Methods 0.000 claims description 34
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 9
- 244000035744 Hura crepitans Species 0.000 description 17
- 238000005266 casting Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000003110 molding sand Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007528 sand casting Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010114 lost-foam casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/12—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose for filling flasks
Abstract
The invention provides a sand silo sand discharging device, which is characterized in that: the sand silo lower part has the sand outlet, the directional contained angle formula of personally submitting with the plummet of opening of sand outlet arrange for, put the sand valve and connect the department at sand outlet upper shed edge by the level to the articulated shaft, put the sand valve around the articulated shaft swing can be in the sand discharge state of closing that blocks sand outlet region and keep away from the sand outlet open the sand discharge state. Among the above-mentioned technical scheme, the directional and plummet of opening of sand outlet personally submit the contained angle formula and arrange, both guaranteed smooth and easy flow and comparatively releive of sand flow to can obtain suitable flow, the sand valve action of putting of swing type arrangement in addition, the spacing cooperation of track that need not strict rectilinear movement is showing and is simplified the structure, has also improved the reliability of sand valve action, especially showing that the cooperation between sand outlet, the sand valve that the swing action of putting the sand valve constitutes is high-efficient, stable and reliable the shutoff and the closing of sand outlet have been realized.
Description
Technical Field
The invention relates to a sand storage and discharge device, in particular to a sand discharging device of a sand silo.
Background
The casting technology is very common, and in the casting technologies such as sand casting, lost foam casting, precoated sand casting and the like, a core mold shell containing a forming cavity is arranged in a sand box after being processed, then common external molding sand is used for landfill, and then the procedures such as casting and the like are carried out. In order to improve the production efficiency, the common external molding sand is stored in a sand bin, and the sand box is indexed to the position below a sand discharging opening of the sand bin to carry out the landfill of the common external molding sand one by one, which is a conventional technology.
The patent document entitled "sand adding device for core shooter" (document number CN 104624984A) includes a sand hopper 3 mounted on a frame 2 through a cushion block 1, a sand adding port 5 is arranged below a sand outlet 4 of the sand hopper 3, a gate plate 6 is arranged at a position corresponding to the sand adding port 5, a lower sand passage 7 is connected to the lower end of the sand adding port 5, a valve device is arranged at the tail end of the lower sand passage 7, the valve device includes a valve 8, a sand outlet 9 is arranged on the valve 8, the valve 8 is connected with a lower connecting plate 11 through a screw 10, the lower connecting plate 11 is connected with a guide rod 13 provided with a spring 12 in a pressing manner, one end of the guide rod 13 is fixed on a support 14 at one side of the frame 1, a seal ring 17 is pressed on the outer wall at the tail end of the lower sand passage 7 through a pressing plate 15 and a pressing spring 16, the sand adding port 5 includes an upper port 18 and a lower port 19, and the sand outlet 4 extends into the upper port 18. In the above scheme, the sand discharging ports are arranged at two positions, namely the valve ports point downwards to the plumb bob, the valves, namely the flashboards 6 and the valves 8, are horizontally arranged, the valves are in close fit with the valve ports, and the requirements on the machining precision of parts are high and the requirement on the fit precision is strict.
The straight-up and straight-down sand discharging mode of the sand discharging device is almost the arrangement mode of sand discharging ports in the prior art, the design idea of a sand blocking valve is almost the same gate valve structure, and in addition, the gate valve plate and the sand discharging port are compact and solid structures, so the sand discharging scheme inevitably leads to a sand discharging flow velocity block which is extremely harmful in the boxing process of a sand box, the vertical direct sand falling has large flow and fast flow velocity, if a bending shape or other sand filling areas causing larger sand resistance exist between a core mold shell and the sand box, the basic requirement of filling cannot be realized at all, and the serious results of deformation, damage and liquid leakage of the core mold shell in the casting process can be seriously caused; the basic perspective of the precise matching of the gate valve and the sand outlet is very attractive, but the reality is very harsh, because the slight deformation of the gate valve plate causes the difficulty of the opening and closing action of the gate valve plate and even the failure of the opening and closing action, namely, the gate valve structure must provide the gate valve with extremely high enclosing cost, and the gate valve structure also does not include a guide rail which limits the displacement direction of the gate valve plate and cannot realize the opening and closing action once sand grains are splashed into the guide rail.
Disclosure of Invention
The invention aims to provide a sand discharging device of a sand silo, which ensures that sand is discharged slowly and smoothly and is closed timely and reliably.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a sand silo sand discharging device which characterized in that: the sand silo lower part has the sand outlet, the directional contained angle formula of personally submitting with the plummet of opening of sand outlet arrange for, put the sand valve and connect the department at sand outlet upper shed edge by the level to the articulated shaft, put the sand valve around the articulated shaft swing can be in the sand discharge state of closing that blocks sand outlet region and keep away from the sand outlet open the sand discharge state.
Among the above-mentioned technical scheme, the directional and plummet of opening of sand outlet personally submit the contained angle formula and arrange, both guaranteed the smooth and easy flow of sand flow and comparatively releive to can obtain suitable flow, the sand valve action of putting of swing type arrangement in addition, the orbit spacing cooperation that need not strict rectilinear movement guides the orbit of opening and close movement track of sand valve, is showing and is simplifying the structure, has also improved the reliability of sand valve action, especially showing that the sand outlet that the swing action of sand valve constitutes, the cooperation between the sand valve is high-efficient, stable and reliable has realized the shutoff and the closing of sand outlet.
Drawings
FIG. 1 is a schematic perspective view of the present invention in use;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 1;
FIG. 4 is an enlarged partial schematic view of FIG. 3;
fig. 5 is a partially enlarged schematic view of fig. 2.
Detailed Description
As shown in fig. 1 and 2, the bracket 10 supports the sand box 1 to make the box bottom 3 in an inclined posture, which ensures that the sandwiched cavity between the box bottom 3 and the bottom of the precoated sand core mold a is in an inclined posture, and the structure of the sand box can be referred to patent document named as "sand core mold pouring box" (document No. CN 109226696a), at this time, the falling path of the exterior sand falling from the sand outlet 21 is limited to reach the upper inner side part of the box wall 2 at the high side, which is the spaced airspace between the box wall 2 and the movable platen 4 of the precoated sand core mold a arranged in the sand box 1, the falling sand enters from the space and flows along the sandwiched cavity between the box wall 2 and the movable platen 4 to the high position of the box bottom 3, and then flows from the high position of the box bottom 3 to the low position of the box bottom 3, as shown by the arrow direction in fig. 2, so as to fill the solid space between the box bottom 3 and the precoated sand core mold a, therefore, the comprehensive and compact enclosure and restraint of the external molding sand on the precoated sand shell core type A are realized, the die assembly state of each precoated sand shell core type A is maintained in a stable and reliable state, the yield of the casting is naturally improved, and the safety of the casting process is also guaranteed. This application is not only applicable to the vanning sand-discharging operation of tectorial membrane sand casting sand box, as long as fix the sand mould earlier in the sand box and the condition that the sand mould bottom is difficult to the tamp, this application homoenergetic.
From the above description, it is important for the sand flow discharged from the sand silo 20 to ensure that the path, flow rate and flow velocity of the sand flow should be controlled to meet the requirement of sand filling in the sand box and how to close the sand outlet after the sand filling is completed in order to achieve the ideal sand filling effect of the sand box.
The utility model provides a sand silo puts sand device, its sand silo 20 lower part has sand outlet 21, sand outlet 21's opening directive personally submit the contained angle formula with the plummet and arrange, put sand valve 30 and connect the department along the mouth to sand outlet 21 by the level to the articulated shaft, put sand valve 30 and can be in the closed sand discharging state that blocks sand outlet 21 region and keep away from sand outlet 21's the state of opening sand discharging.
One of the key points of the scheme is that the opening direction of the sand outlet 21 is arranged in an included angle with the plumb bob, specifically, the included angle between the horizontal direction and the included angle area which is close to the horizontal direction or obliquely downward is included, generally speaking, the included angle is preferably larger than 30 degrees, when the opening direction of the sand outlet 21 is the horizontal direction, the included angle between the opening direction of the sand outlet 21 and the plumb bob direction is 90 degrees, so that the sand flow can be smoothly and smoothly discharged, in addition, generally, the sand silo 20 has certain sand storage capacity, when the sand amount stored in the sand silo is larger than the required amount of boxing of a single sand box, the sand outlet 21 needs to be plugged and closed when sand is stored for standby in a non-boxing period, and the sand outlet 21 is arranged obliquely in the horizontal direction and the approximate horizontal direction, and the sand outlet 21 is also beneficial to be matched with the sand discharge valve 30 to close the sand outlet 21.
Because the sand grains have specific semifluid performance, in order to limit the falling speed, the opening of the sand outlet 21 is directed to be in the horizontal direction or downwards obliquely, so that the flowing falling of the sand grains can be ensured, and the phenomenon that the sand guide plate 40 is intensively accumulated when the sand outlet 21 is arranged downwards and almost frontally impacts the sand guide plate 40 when the sand outlet is too close to the sand guide plate 40 or the sand flow seriously impacts the sand guide plate 40 when the sand flow is too far away from the sand guide plate 40 can be overcome. The opening direction of the sand outlet 21 is set to be horizontal or obliquely downward, so that the molding sand can be smoothly discharged. When the sand outlet 21 is arranged obliquely downwards, if the included angle between the direction of the sand outlet 21 and the plumb bob surface is smaller than 20 +/-5 degrees, namely the surface where the sand outlet 21 is located is very close to the plumb bob surface, namely the surface is close to the condition that the opening faces downwards, the phenomenon of over-rapid sand outlet is easy to occur.
In specific implementation, the mouth-shaped profile of the sand outlet 21 can be selected from square, round and oval. Taking the rectangular sand outlet 21 as an example, the sand flow interface is also a rectangular area, the shakeout first reaches the sand guide plate 40 disposed below uniformly, and is guided by the sand guide plate 40 to be suitable for filling the sand filling operation of the sand box shown in fig. 1 and 2, i.e. the sand flow conveniently reaches the slit-shaped shakeout area and travels along the direction indicated by the arrow.
The sand discharging valve 30 is a folded plate or a bent shape formed by a sand sealing plate 31 and a locking plate 32, when the sand discharging valve 30 closes the sand outlet 21, the sand sealing plate 31 is sealed at the orifice area of the sand outlet 21, and the locking plate 32 is tied at the bottom of the opening edge of the sand outlet 21.
The sand sealing plate 31 and the locking plate 32 may be formed by welding two plates or bending one plate, the sand sealing plate 31 faces the sand outlet 21 to perform a large-area sealing function, and the locking plate 32 is located at the lower edge of the sand outlet 21 to perform a function of sealing the downward sand falling at the gap.
The bottom of the sand silo 20 is provided with a front silo wall 22, the opposite side of the front silo wall 22 is provided with a rear silo wall 23, a side silo wall 24 is arranged between the two sides of the front silo wall 22 and the rear silo wall 23, the bottom of the rear silo wall 23 is provided with a bottom silo wall 25, the front edge of the bottom silo wall 25 extends to the lower part of the front silo wall 22, and a rectangular opening area formed by a concave notch arranged on the lower edge of the front silo wall 22 and the front edge of the bottom silo wall 25 forms a sand outlet 21.
More preferably, when the sand valve 30 closes the sand outlet 21, the sand sealing plate 31 seals the opening area of the sand outlet 21, and the locking plate 32 is closely attached to the front edge of the outer plate surface of the bottom silo wall 25. When the sand discharging valve 30 is opened, the sand discharging valve is avoided to the side of the sand outlet 21 and is far away from the sand shakeout path.
The rear bin wall 23 and the bottom bin wall 25 shown in fig. 2, 3 and 5 have an obvious boundary part, and of course, the two can also be in a smooth transition structure, and the front end of the bottom bin wall 25 is required to have a flat-bottomed plate surface part, so that the rear bin wall 23 and the bottom bin wall 25 can be matched with the sand valve 30 to realize a reliable sand sealing effect.
The sand valve 30 provided by the above scheme is matched with the sand outlet 21 which is horizontally or laterally directed, so that the sand sealing effect is very reliable, when the sand sealing plate 31 approaches to the position of the sand outlet 21, the locking plate 32 reaches the position below the bottom bin wall 25 and has an overlapped part between the locking plate and the bottom bin wall, sand grains clamped in a gap formed by the overlapped part provide a tendency of preventing the sand grains from being separated from each other, a small gap between the edge of the sand sealing plate 31 and the edge of the sand outlet 21 is enough to block the flow of the sand grains, therefore, the closed matching of the sand valve 30 and the sand outlet 21 in the invention is a matching state with a small gap between the locking plate and the sand outlet 21, a tight joint type precise matching between the locking plate and the sand outlet is not required, the locking plate 32 is closely attached to the outer plate surface of the bottom bin wall 25, namely, a small amount of sand grains are allowed to be accumulated between the locking plate and the sand outlet 21, and the separation tendency of the sand sealing plate 31 and the sand outlet 21 is prevented by virtue of effective friction force provided by the squeezed sand grains, and sand grains at the gap between the sand-sealing plate 31 and the sand outlet 21 are crowded with each other to block the sand seal inside. The matching scheme of the sand discharging valve 30 and the sand outlet 21 not only solves the problem of opening and closing the sand outlet 21, but also has low manufacturing cost and cost saving due to simple structure and few machining precision requirements.
As shown in fig. 4 and 5, the sand outlet 21 is a baffle 221 with a vertical plate surface and a plate surface matched with the sand flow direction at the edge of the two sides of the square hole, and the width of the sand sealing plate 31 on the sand valve 30 is matched with the width of the baffle 221, and when the sand sealing plate 31 is closed, the sand sealing plate 31 is close to the outer side plate edge of the two baffles 221.
The baffle plates 221 are arranged at the opening edges on the two sides of the sand outlet 21, so that the function of applying proper constraint to the initial section of falling sand is achieved during sand discharging, the phenomenon that sand is dispersed immediately after the sand leaves the sand outlet 21 suddenly is avoided, namely although the sand after leaving the sand outlet 21 suddenly meets the sudden change of the internal and external environmental pressures of the sand bin 20, the tendency that the sand bunch is exploded towards the two sides is effectively restrained under the shielding effect of the baffle plates 221, and the sand bunch is uniformly spread to the material receiving end of the sand guide plate 40.
The sand valve 30 is held by a hanger at a position away from the sand outlet 21. Namely, the sand outlet 21 is opened for the period of time of sand discharge, the sand discharge valve 30 is hung by the hanger to avoid the sand flow path, and the sand discharge valve 30 is immediately discharged after the sand filling process is finished.
As a specific scheme, a sand sealing plate 31 of the sand discharging valve 30 is provided with a supporting extension plate 311 extending to the outside of the back surface of the locking plate 32 or a hook-and-loop component, a hook 50 is arranged on the sand silo 20, and when the sand discharging valve 30 is in an open state, the hook 50 is hooked on a plate surface or a hook-and-loop component of the supporting extension plate 321 close to the back surface of the locking plate 32. The arrangement of the supporting plate 321 has two functions, one is that the connection with the hook 50 is facilitated, the scheme that the hinge shaft 33 is arranged at the upper edge is selected, the sand discharging passage is conveniently opened when the supporting plate swings along the anticlockwise direction shown in fig. 5, meanwhile, the hook 50 is conveniently hooked at one side of the suspended free edge, and the sand discharging valve 30 is conveniently and reliably maintained in an opening state; and secondly, the sand valve is convenient to hold manually when being opened and closed, and the matching scheme of the part and the hook 50 can be omitted if the sand valve 30 is driven to move by adopting a telescopic mechanism.
The included angle between the locking plate 32 and the sand sealing plate 31 is 70 +/-15 degrees, the outline of the plate edge of the baffle 221 is in a right triangle shape, and the acute angle of the front lower part of the baffle 221 is positioned at the included angle between the locking plate 32 and the sand sealing plate 31 when the sand valve 30 is closed.
In order to improve the matching of the sand discharging valve 30 and the sand outlet 21 to realize the plugging reliability, the included angle between the locking plate 32 and the plate surface of the sand sealing plate 31 is 70 +/-15 degrees, it can be seen that the included angle between the locking plate 32 and the sand sealing plate 31 is slightly smaller than 90 degrees, which is a preferable scheme, more preferably 70-80 degrees, the included angle range is selected, when the sand discharging valve 30 is closed, namely the plate surface of the sand sealing plate 31 is close to but slightly separated from the outer side plate edge 221a of the baffle 221, the suspended edge of the locking plate 32 extends to the lower side of the bottom bin wall 25, accumulated sand exists in the included angle area between the locking plate 32 and the sand sealing plate 31 at the front side of the bottom bin wall 25, but the accumulated sand cannot cross the overlapped area between the bottom bin wall 25 and the locking plate 32 and the gap between the lower edge of the baffle 221 and the locking plate 32 to overflow, and is in a stop state, and the sand outlet 21 is firmly plugged, so that the sand plugging effect is realized. It should be noted that, when the sand silo 20 has no sand, the plate surface of the sand sealing plate 31 is directly pressed against the outer plate edge 221a of the baffle 221 due to the gravity, the locking plate 32 naturally extends to the lower side plate edge of the baffle 221 and the lower part of the front end of the bottom silo wall 25, and the locking plate 32 can be in contact with or in close fit with the lower plate surface of the bottom silo wall 25.
The sand guide plate 10 with the obliquely arranged plate surface is positioned below the sand valve 30 and the sand outlet 21, and the upper part of the sand guide plate 10 is connected with the sand outlet 21 to receive sand. Referring to fig. 2, a sand guide plate 40 with an obliquely arranged plate surface is arranged at the sand outlet 21, the inclined direction of the sand guide plate 40 is opposite to the inclined direction of the box bottom 3 of the sand box 1, the upper part of the sand guide plate 40 is connected with the sand outlet 21 to receive sand, and the lower part of the sand guide plate 40 extends towards the inner side of the upper edge of the box wall 2 at the high side of the sand box 1 to be connected with the shakeout sand. The sand guide plate 40 is arranged, so that sand can be accurately guided to the region surrounded by the upper edge of the box wall 2 on the high side and the upper edge of the movable pressing plate 4, and the inclined arrangement of the sand guide plate 40 can reduce the speed of the quicksand and prevent the quicksand from splashing in the sand shakeout process due to the narrow entrance of the region, thereby realizing the bundling effect on the sand flow; meanwhile, the inclination direction of the sand guide plate 40 is opposite to the inclination direction of the box bottom 3 of the sand box 1, so that an included angle between the falling direction of the quicksand guided by the sand guide plate 40 and the box wall 2 is reduced, the condition that the quicksand is splashed due to the fact that the quicksand impacts the box wall 2 from the front side is avoided, the fallen sand almost completely reaches the area between the box wall 2 and the movable pressing plate 4 and falls to one side of the box bottom 3, and abrasion of the box wall 2 due to long-term washing of the quicksand is reduced.
The sand guide plate 40 is hinged on the sand silo 20 through a shaft rod 41, and an adjusting mechanism for adjusting the inclination angle of the sand guide plate 40 is arranged between the sand guide plate 40 and the sand silo 20. As the sand loading process continues, it is practical to adjust the sand guide plate 40 appropriately so that the flow of sand can be guided to the corresponding portion of the flask 1.
When the sand filling operation is required to be carried out on the sand box, the sand discharging valve 30 is opened, and the sand falling from the sand outlet 21 is received and guided by the sand guide plate 40.
As shown in fig. 4 and 5, the upper plate edge of the sand-sealing plate 31 is hinged at the sand outlet 21 and the hinge shaft 33 is horizontally and flush with the surface of the sand outlet 21. The upper plate edge of the sand sealing plate 31 is selected to be rotationally connected, and the opening and closing paths of the upper plate edge and the sand guide plate 40 are located at the avoidance positions, so that interference between the upper plate edge and the sand guide plate is avoided. Three sand outlets 21 are shown in fig. 4, one on the left side being closed and two on the middle and right side being open.
Claims (12)
1. The utility model provides a sand silo sand discharging device which characterized in that: sand silo (20) lower part has sand outlet (21), sand outlet (21) the opening directive of directional and plummet personally submitting the contained angle formula and arranging, put sand valve (30) and connect in sand outlet (21) upper shed edge department by the level to the articulated shaft, put sand valve (30) and can be in the closed sand discharging state that blocks sand outlet (21) region and keep away from the open sand discharging state of sand outlet (21) around the articulated shaft swing.
2. The sand silo sand discharging device of claim 1, wherein: the opening of the sand outlet (21) points to the horizontal direction or the downward oblique direction.
3. The sand silo sand discharging device of claim 1, wherein: the sand discharging valve (30) is a folded plate or a bent shape formed by a sand sealing plate (31) and a locking plate (32), when the sand discharging valve (30) closes the sand outlet (21), the sand sealing plate (31) is blocked at the orifice area of the sand outlet (21), and the locking plate (32) is maintained at the bottom of the opening edge of the sand outlet (21).
4. The sand silo sand discharging device of claim 1, wherein: the mouth-shaped outline of the sand outlet (21) is square, round or oval.
5. The sand silo sand discharge device of claim 1 or 2 or 3 or 4, wherein: the sand silo (20) is provided with a front silo wall (22) at the bottom, a rear silo wall (23) is arranged on the opposite side of the front silo wall (22), a side silo wall (24) is arranged between the two sides of the front silo wall (22) and the rear silo wall (23), the bottom of the rear silo wall (23) is provided with a bottom silo wall (25), the front edge of the bottom silo wall (25) extends to the lower part of the front silo wall (22), and a concave notch formed in the lower edge of the front silo wall (22) and a rectangular opening area formed by the surrounding of the front edge of the bottom silo wall (25) form a sand outlet (21).
6. The sand silo sand discharging device of claim 5, wherein: when the sand discharging valve (30) closes the sand outlet (21), the sand sealing plate (31) is sealed at the opening hole area of the sand outlet (21), and the locking plate (32) is closely attached to the front edge of the outer plate surface of the bottom bin wall (15).
7. The sand silo sand discharge device of claim 1 or 2 or 3 or 4, wherein: the sand outlet (21) is provided with baffle plates (221) with vertical plate surfaces and matched plate surfaces and sand flow directions at the edge parts of the two sides of the square hole, and the sand sealing plate (31) on the sand valve (30) is matched with the width of the baffle plates (221) and is close to the outer side plate edges of the two baffle plates (221) when the sand sealing plate (31) is closed.
8. The sand silo sand discharging device of claim 1 or 3, wherein: the sand release valve (30) is maintained at a position far away from the sand outlet (21) by a hanger.
9. The sand silo sand discharging device of claim 8, wherein: a sand sealing plate (31) forming the sand discharging valve (30) is provided with a supporting extension plate (311) extending to the outside of the back surface of a locking plate (32) or a hook ring component, a hook (50) is arranged on a sand bin (20), and the hook (50) is hooked on a plate surface close to the back surface of the locking plate (32) or the hook ring component on the supporting extension plate (321) in the opening state of the sand discharging valve (30).
10. The sand silo sand discharging device of claim 3, wherein: the included angle between the surfaces of the locking plate (32) and the sand sealing plate (31) is 70 +/-15 degrees, the outline of the edge of the baffle (221) is in a right-angled triangle shape, and the acute angle of the front lower part of the baffle (221) is positioned at the included angle between the locking plate (32) and the sand sealing plate (31) when the sand valve (30) is closed.
11. The sand silo sand discharge device of claim 1 or 2 or 3 or 4, wherein: the sand guide plate (10) with the obliquely arranged plate surface is positioned below the sand valve (30) and the sand outlet (21), and the upper part of the sand guide plate (40) is connected with the sand outlet (21) to receive sand.
12. The sand silo sand discharging device of claim 11, wherein: the sand guide plate (40) is hinged on the sand bin (20) through a shaft lever (41), and an adjusting mechanism for adjusting the inclination angle of the sand guide plate (40) is arranged between the sand guide plate (40) and the sand bin (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120815.8A CN114433783A (en) | 2022-02-09 | 2022-02-09 | Sand discharging device of sand silo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210120815.8A CN114433783A (en) | 2022-02-09 | 2022-02-09 | Sand discharging device of sand silo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114433783A true CN114433783A (en) | 2022-05-06 |
Family
ID=81372046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210120815.8A Pending CN114433783A (en) | 2022-02-09 | 2022-02-09 | Sand discharging device of sand silo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114433783A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059242A (en) * | 2000-08-11 | 2002-02-26 | Metal Eng Kk | Method for charging molding sand and its device |
| CN201389620Y (en) * | 2009-05-07 | 2010-01-27 | 天津荣亨集团股份有限公司 | Combined sand-storing box for production line for precision casting |
| CN208408459U (en) * | 2018-06-29 | 2019-01-22 | 天津华鑫圣达科技发展有限公司 | A kind of casting sanding device |
| CN209157102U (en) * | 2018-11-17 | 2019-07-26 | 南京汤达新型材料制造有限公司 | Device for discharging for lost foam casting sandbox |
| CN211464769U (en) * | 2019-08-09 | 2020-09-11 | 青岛凯捷重工机械有限公司 | Sand box bottom sand leaking device of automatic lost foam production line |
| CN111992667A (en) * | 2020-08-31 | 2020-11-27 | 陈玉梅 | Casting mold and casting method thereof |
-
2022
- 2022-02-09 CN CN202210120815.8A patent/CN114433783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059242A (en) * | 2000-08-11 | 2002-02-26 | Metal Eng Kk | Method for charging molding sand and its device |
| CN201389620Y (en) * | 2009-05-07 | 2010-01-27 | 天津荣亨集团股份有限公司 | Combined sand-storing box for production line for precision casting |
| CN208408459U (en) * | 2018-06-29 | 2019-01-22 | 天津华鑫圣达科技发展有限公司 | A kind of casting sanding device |
| CN209157102U (en) * | 2018-11-17 | 2019-07-26 | 南京汤达新型材料制造有限公司 | Device for discharging for lost foam casting sandbox |
| CN211464769U (en) * | 2019-08-09 | 2020-09-11 | 青岛凯捷重工机械有限公司 | Sand box bottom sand leaking device of automatic lost foam production line |
| CN111992667A (en) * | 2020-08-31 | 2020-11-27 | 陈玉梅 | Casting mold and casting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5096302A (en) | Plastic feeding device and method | |
| CA2599005C (en) | Casting mould, process and device for casting metal melts | |
| CN207205185U (en) | The apparatus for pouring of strip thin-wall part | |
| CN114433794A (en) | Sand box sand loading device | |
| CN114433783A (en) | Sand discharging device of sand silo | |
| CN210858036U (en) | Lifting type distributing hopper device for concrete pouring | |
| CN206360347U (en) | A kind of aluminum alloy pattern plate pours the support combinations of balcony | |
| CN211970499U (en) | Intermittent discharge port of storage tank | |
| CN204770508U (en) | Can prevent cold core machine of grit bonding sand hopper wall | |
| CN208825541U (en) | A kind of three mouth of a river ladles being equipped with sliding equipment | |
| CN110589059B (en) | Rice sack filling device convenient to avoid extravagant | |
| CN212249242U (en) | Concrete funnel for civil engineering | |
| CN102133979A (en) | Sand hopper with automatic opening and closing device | |
| CN209750168U (en) | Skin cream packaging tin convenient to disassemble and assemble | |
| CN207669504U (en) | Superimposed sheet makes mold reserving rib edge sealing fixture assembly | |
| CN104372835B (en) | Flush toilet device | |
| CN207275038U (en) | A kind of liquid packaging machine is fed Anti-dripping device | |
| CN212829531U (en) | Automatic bag unloading mechanism for powder quantitative packaging machine | |
| CN205692059U (en) | A kind of water level controller | |
| CN219025874U (en) | Die casting device | |
| CN213651223U (en) | Novel tea discharging device with quantitative discharging structure | |
| US3196503A (en) | Apparatus for pressure pouring of cast metal articles | |
| CN204956975U (en) | Material device is irritated to cubic material | |
| CN211420919U (en) | Shock-free deceleration strip | |
| CN218031704U (en) | Double-stroke batching valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |