CN212468005U - Discharging device of sand mixer - Google Patents
Discharging device of sand mixer Download PDFInfo
- Publication number
- CN212468005U CN212468005U CN202020622669.5U CN202020622669U CN212468005U CN 212468005 U CN212468005 U CN 212468005U CN 202020622669 U CN202020622669 U CN 202020622669U CN 212468005 U CN212468005 U CN 212468005U
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- Prior art keywords
- output shaft
- bin
- stirring
- storage bin
- sand mixer
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- 239000004576 sand Substances 0.000 title claims abstract description 41
- 238000007599 discharging Methods 0.000 title claims abstract description 40
- 238000003756 stirring Methods 0.000 claims abstract description 45
- 238000003860 storage Methods 0.000 claims abstract description 25
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 37
- 239000003110 molding sand Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000002699 waste material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A discharging device of a sand mixer comprises a driving motor fixedly arranged right above a stock bin, and a stirring device and a cleaning device are arranged on an output shaft of the driving motor in the stock bin from top to bottom; the stirring device comprises stirring rods which are arranged on the output shaft in a staggered manner; the cleaning device is sleeved at the bottom outlet in the storage bin and connected to the bottom end of the output shaft through a fixing rod, and comprises a rotary friction body and a scraping plate arranged on the rotary friction body, and the scraping plate is simultaneously attached to the inner side wall of the storage bin; the device also comprises a discharge hose arranged below the discharge port of the storage bin, and a digital display flow control valve, a normally closed pneumatic valve and a manual control valve which are sequentially arranged on the discharge hose along the discharge direction, wherein the discharge port of the storage bin is provided with a transparent dust cover. The utility model discloses the difficult sand mulling machine discharging device that blocks up of feed bin, the difficult sand sticking of hopper inner wall and ejection of compact flow and speed are controllable and simple structure, convenient to detach, convenient operation.
Description
Technical Field
The utility model relates to a mechanical equipment technical field for the roller mill, concretely relates to roller mill discharging device.
Background
Sand mixers are widely used in the foundry industry as a means of mixing molding sand. The principle of a sand mixer is that relative motion of a grinding wheel and a grinding disc is utilized to achieve the effect of crushing materials, and the general sand mixer has the problems that a discharge port of the traditional sand mixer has a certain height difference with a mould, the materials fall down with certain gravitational potential energy, bubbles are easily generated in the mould, the quality of the mould is influenced, the movable range of the discharge port is limited, the corner parts of the mould to be filled are difficult to reach, extra manual filling is required to be added for supplement, and the sand mixer is very inconvenient.
In the published chinese patent technical literature, the application number "201721633111.1", entitled "a discharging device of a casting mixer", has made structural improvements in this field, specifically by providing a side upper frame and a right upper frame on a hopper, each frame being composed of two symmetrical parts; a connecting piece is arranged between the side upper frame and the hopper to play a role of fixing and supporting, and the hopper is connected with the right upper frame and is fixed on the connecting piece; the upper opening of the hopper is close to but not connected with the discharge hole of the sand mixer; the lower opening of the hopper is provided with a section of flexible metal pipe which can stretch and bend at a small angle, and the lower opening of the flexible pipe is provided with a material guide plate, so that the distance between a discharge port and a die can be greatly shortened, the material is more compactly filled, and bubbles are prevented from being generated; and the effective filling radius of the discharged material is increased, so that the mixed sand can fill the mold more efficiently.
However, the applicant has found in the first line of work of the year that the following drawbacks still exist in the current technology: 1. the discharge port of the hopper is easy to block due to two reasons, one of the reasons is that the water content of the mixed sand is increased, the viscosity is increased, so that the mixed molding sand is easy to form blocks and balls, the material is difficult to discharge, and the material is accumulated in the hopper to block the discharge port, thereby influencing the use of the hopper; secondly, in the sand mixing process, because a binder is used, mixed molding sand is often adhered to the inner wall of a hopper of a discharging device when being discharged, the molding sand cannot be completely discharged, if the molding sand is not cleaned in time and is adhered to the discharging hopper for a long time, the molding sand can be hardened and is removed from the hopper body, so that the problem of very trouble is caused, meanwhile, the waste of molding sand resources is also caused, and the material outlet of the hopper is narrow due to long-term accumulation, and finally, the material outlet is slowly blocked and cannot be used, so that the material outlet has to be replaced, the service life of the hopper is shortened, and the production process is influenced;
2. the discharge flow and speed cannot be controlled, so that the molding sand is wasted or the quality of a finished product in the mold is influenced; because the sand grain of the sand mixer is small, the falling speed is high, the discharging flow and speed cannot be controlled during the corner filling of the die, so that the sand piling waste is caused, and when the material in the die reaches the required amount or power failure or sudden accident occurs, the discharging of the metal flexible pipe cannot be stopped in time, the material in the storage bin can be continuously lowered along the discharging pipe, so that the control in time cannot be realized, the sand falls on the ground, the sand waste can be caused, and the sand mixer needs to be manually cleaned after hardening, so that the production efficiency is influenced;
3. dust pollution can be caused when the material guide plate is used for blanking; the sand mixer can generate dust in the mixing process, and the dust is completely discharged from a sand outlet of the sand mixer, so that the environmental pollution is caused, and the health of workers is threatened.
Disclosure of Invention
The utility model aims at providing a not enough to prior art, provide a feed bin feed opening department is difficult for blockking up, the difficult sand sticking of hopper inner wall and ejection of compact flow and controllable and simple structure, convenient to detach, convenient operation's roller mill discharging device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
designing a discharging device of a sand mixer, which comprises a storage bin, wherein a driving motor is fixedly arranged right above the storage bin, and a stirring device and a cleaning device are arranged on an output shaft of the driving motor in the storage bin from top to bottom; the stirring device comprises stirring rods which are arranged on the output shaft in a staggered manner; the cleaning device is sleeved at a bottom outlet in the storage bin, is connected to the bottom end of the output shaft through a fixing rod, and comprises a rotary friction body and a scraper mounted on the rotary friction body, and the scraper is simultaneously attached to the inner side wall of the storage bin;
the device also comprises a discharge hose arranged below the discharge port of the storage bin, and a digital display flow control valve, a normally closed pneumatic valve and a manual control valve which are sequentially arranged on the discharge hose along the discharge direction, wherein the discharge port of the storage bin is provided with a transparent dust cover.
In the technical scheme, the storage bin is used as a storage device and is arranged below the discharge port of the sand mixer, when the sand mixer discharges materials, the driving motor is started to drive the rotary friction body and the scraper blade connected with the stirring device to work, the materials quickly enter the discharge hose under the rotating action of the stirring device, and the discharge port is effectively prevented from being blocked; the scraper blade of laminating mutually along the footpath of inner wall in the feed bin with the feed bin inside wall radially gyration, and the sand that the scraper blade began to strike off the adhesion this moment to reach the effect of clearance inner wall, simultaneously, the gyration friction member of the bottom exit of registrate installation in the feed bin is along the gyration of bottom exit in the feed bin, thereby reaches the effect of friction clearance, makes the unloading more smooth and easy.
The method comprises the following steps that a transparent dust cover is arranged at the tail end of a discharging hose, when a material flow starts to be filled into a mold through the discharging hose, in order to prevent dust pollution of a discharging pipe and conveniently observe the material condition in the mold, when corner filling is needed, the flow rate of the material needs to be slowed down in order to avoid waste of molding sand, the opening of a flow control valve can be adjusted to be reduced by observing a flow display on a digital display flow control valve, otherwise, the opening of the flow control valve is enlarged, when the mold is completely filled, a driving motor is closed to stop stirring and discharging, the flow control valve is closed to block communication between a bin and the discharging hose, and a manual control valve at the lower end of the discharging hose is closed; and when the outage or sudden accident appear, normally closed pneumatic valve because lose the electricity, actuating mechanism pops out, closes the pipeline, plays the automatic closed ejection of compact hose, avoids the material to transfer the waste always.
Preferably, the axis of the stirring rod is perpendicular to the axis of the output shaft.
Preferably, a plurality of stirring rods which form an included angle of 60-80 degrees with the output shaft are uniformly and alternately arranged on the output shaft from top to bottom.
Preferably, a handle is further mounted on the output shaft.
Preferably, the stirring device is a screw rod.
Preferably, the side surface of the storage bin is symmetrically provided with at least one pair of observation windows, and the observation windows are provided with convex lenses.
The beneficial effects of the utility model reside in that:
1. the utility model adopts the stirring rod of the stirring device and the output shaft to be arranged in a staggered way at a certain angle, when the stirring rod acts on the material at a certain angle, the resistance of the stirring rod when contacting the material can be reduced to a certain degree, thereby effectively preventing the stirring rod from being broken, having better stirring effect, leading the discharging to be smoother and greatly reducing the risk of blocking the discharge port of the storage bin;
2. the utility model adopts the connection of the stirring device and the cleaning device, when the discharging device discharges materials, the driving motor drives the stirring device and the cleaning device to work simultaneously, the materials can rapidly enter the discharging hose through the rotation of the stirring device, and the discharge port can be effectively prevented from being blocked; the scraper blade that laminates mutually along the feed bin inner wall with the feed bin inboard wall gyration, the sand that the scraper blade began to strike off the adhesion this moment to reach the effect of clearance inner wall, simultaneously, the rotary friction body of the bottom exit of registrate installation in the feed bin is along the feed bin in the gyration of bottom exit, and produce the friction with it, thereby reach the effect of friction clearance, it is more smooth and easy to make the unloading, has not only prevented that the feed bin discharge gate from blockking up, has still avoided feed bin inner wall adhesion material, kills two birds with one stone.
3. The utility model adopts the technical scheme that the transparent dust cover is arranged at the tail end of the discharging hose, when the material flows into the mold through the discharging hose, the material condition in the mold can be conveniently observed while preventing the dust pollution of the discharging pipe; the discharging pipe can rotate at 360 degrees without dead angles by adopting a hose, can reach each corner of the die, and does not need manual operation;
4. the utility model adopts the feed bin discharge port to be connected with the discharge hose through the digital display flow control valve, and the opening and closing degree of the flow control valve can be adjusted by observing the flow display on the digital display flow control valve, thereby achieving the purpose of controlling the material flow velocity of the discharge pipe; when the mold is filled completely, the communication between the stock bin and the discharge hose can be blocked by closing the flow control valve, and in order to prevent the material in the discharge hose from being continuously lowered, the manual control valve at the lower end of the discharge hose can be closed to close the pipeline; and when the outage or sudden accident appear, the normally closed pneumatic valve can self-sealing ejection of compact hose, avoids the material to transfer the waste always, plays the guard action.
The utility model provides a feed bin feed opening be difficult for blockking up, the difficult sand sticking of hopper inner wall and ejection of compact flow and controllable and simple structure, convenient to detach, convenient operation's roller mill discharging device.
Drawings
FIG. 1 is a schematic view of the overall structure of the discharging device of the medium sand mixer of the present invention;
FIG. 2 is a schematic structural view of the present invention, wherein the stirring rod and the output shaft form a certain included angle;
FIG. 3 is a schematic structural view of the stirring device of the present invention being a screw rod;
reference numbers in the figures: 1 feed bin, 2 dead levers, 3 handles, 4 driving motor, 5 output shafts, 51 stirring rod, 6 scrapers, 61 friction of gyration bodies, 7 digital display flow control valves, 8 normally closed pneumatic valves, 9 manual control valves, 10 dust covers, 11 augers, 12 ejection of compact hoses.
Detailed Description
The following examples are provided only for illustrating the embodiments of the present invention in detail and are not intended to limit the scope of the present invention in any way.
Example 1: a discharging device of a sand mixer is disclosed, referring to figures 1 to 3, and comprises a driving motor 4 fixedly arranged right above a stock bin 1, and a stirring device and a cleaning device are arranged on an output shaft 5 of the driving motor 4 in the stock bin 1 from top to bottom; the stirring device comprises stirring rods 51 which are arranged on the output shaft 5 in a staggered mode; the cleaning device is sleeved at the bottom outlet in the storage bin 1, is connected to the bottom end of the output shaft 5 through the fixing rod 2, and comprises a rotary friction body 61 and a scraping plate 6 arranged on the rotary friction body 61, and the scraping plate is simultaneously attached to the inner side wall of the storage bin 1;
the device also comprises a discharge hose 12 arranged below a discharge port of the storage bin 1, and a digital display flow control valve 7, a normally closed pneumatic valve 8 and a manual control valve 9 which are sequentially arranged on the discharge hose 12 along the discharge direction, wherein a transparent dust cover 10 is arranged at the discharge port of the storage bin 1.
Wherein, in order to break the material arch, the axis of the stirring rod 51 is vertical to the axis of the output shaft 5.
Wherein, when avoiding driving motor 4 trouble, stirring device and the unpowered source of cleaning device still install handle 3 on the output shaft, through rotatory handle 3 to drive stirring device and cleaning device work, with the effect of guaranteeing that feed bin 1 smoothly unloading and the 1 inner wall adhesion material of effective clearance feed bin.
Wherein, for the ejection of compact condition in the convenient observation feed bin 1, be equipped with a pair of observation window in feed bin 1 side symmetry, be equipped with convex lens on the observation window.
Example 2: the utility model provides a roller mill discharging device, refer to fig. 1 to fig. 3, with embodiment 1's difference lie in, from top to bottom evenly crisscross the stirring rod 51 that is a plurality of spatial angle 60~80 contained angles with output shaft 5 that is provided with on output shaft 5, when stirring rod 51 acts on the material with certain angle, resistance when reduction stirring rod 51 that can the certain degree contacts with the material, thereby prevent effectively that stirring rod 51 from being broken, promote the smooth and easy degree during the ejection of compact, 1 discharge gate of greatly reduced feed bin blocks up the risk.
Example 2: a discharging device of a sand mixer, referring to figures 1 to 3, is different from embodiments 1 and 2 in that a stirring rod 51 is a screw rod 11, and can also play a role in enabling a storage bin 1 to smoothly discharge and preventing a discharge hole of the storage bin 1 from being blocked.
The apparatus elements referred to in the above embodiments are conventional apparatus elements unless otherwise specified.
The utility model discloses sand mixer discharging device's concrete working method does: when the discharging device starts to discharge, the driving motor 4 is started to drive the rotary friction body 61 and the scraping plate 6 connected with the stirring device to work, so that the materials can rapidly enter the discharging hose 12 through the rotating action of the stirring device, and the discharging port is effectively prevented from being blocked; the scraper blade 6 that laminates mutually along 1 inside wall of feed bin rotates with 1 inside wall of feed bin, and scraper blade 6 begins to strike off the sand of adhesion this moment to reach the effect of clearance inner wall, simultaneously, the gyration friction member of the bottom exit of registrate installation in the feed bin along the feed bin in the gyration exit gyration of bottom exit, and produce the friction with it, thereby reach the effect of friction clearance, make the unloading more smooth and easy.
When the corner filling of the mold is needed, in order to avoid waste of molding sand, the flow rate of the material needs to be slowed down, at the moment, the opening of the flow control valve can be adjusted to be reduced by observing a flow display on the digital display flow control valve 7, otherwise, the opening of the flow control valve is adjusted to be larger, when the mold is completely filled, the driving motor 4 is closed to stop stirring and blanking, the flow control valve is closed to block the communication between the stock bin 1 and the discharge hose 12, and the manual control valve 9 at the lower end of the discharge hose 12 is closed to prevent the material in the discharge hose 12 from being; and when a power failure or an accident occurs, the normally closed pneumatic valve 8 pops up the actuating mechanism due to power failure to close the pipeline, so that the discharging hose 12 is automatically closed, and the material is prevented from being discharged and wasted all the time.
The embodiments of the present invention have been described in detail with reference to the drawings and examples, but the present invention is not limited to the above embodiments, and can be modified or changed within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. A discharging device of a sand mixer comprises a stock bin (1), wherein a driving motor (4) is fixedly installed right above the stock bin (1), and is characterized in that a stirring device and a cleaning device are installed in the stock bin (1) and on an output shaft (5) of the driving motor (4) from top to bottom; the stirring device comprises stirring rods (51) which are arranged on the output shaft (5) in a staggered mode; the cleaning device is sleeved at a bottom outlet in the storage bin (1), is connected to the bottom end of the output shaft (5) through a fixing rod (2), and comprises a rotary friction body (61) and a scraper (6) arranged on the rotary friction body (61), and the scraper (6) is simultaneously attached to the inner side wall of the storage bin (1);
still include ejection of compact hose (12) of installing in feed bin (1) discharge gate below, and digital display flow control valve (7), normally closed pneumatic valve (8) and manual control valve (9) of installing in proper order along the ejection of compact direction on ejection of compact hose (12), ejection of compact hose (12) discharge gate department is equipped with transparent dust cover (10).
2. -sand mixer discharge according to claim 1, characterised in that the axis of the stirring rod (51) is perpendicular to the axis of the output shaft (5).
3. The discharging device of the sand mixer according to claim 1, characterized in that a plurality of stirring rods (51) are uniformly staggered from top to bottom on the output shaft (5), and the stirring rods (51) and the output shaft (5) form a space angle of 60-80 degrees.
4. A sand mixer discharging device according to claim 1, characterized in that a handle (3) is also mounted on the output shaft (5).
5. A sand mixer discharge apparatus according to claim 1 or 4 characterised in that the stirring rod (51) is a screw rod (11).
6. The discharging device of the sand mixer according to claim 1, wherein at least one pair of observation windows are symmetrically arranged on the side surface of the storage bin (1), and convex lenses are arranged on the observation windows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622669.5U CN212468005U (en) | 2020-04-23 | 2020-04-23 | Discharging device of sand mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622669.5U CN212468005U (en) | 2020-04-23 | 2020-04-23 | Discharging device of sand mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212468005U true CN212468005U (en) | 2021-02-05 |
Family
ID=74450832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020622669.5U Expired - Fee Related CN212468005U (en) | 2020-04-23 | 2020-04-23 | Discharging device of sand mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212468005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600744A (en) * | 2021-07-08 | 2021-11-05 | 安徽省含山县林头郑孙铸造厂 | Back sand conveying and feeding device for casting |
-
2020
- 2020-04-23 CN CN202020622669.5U patent/CN212468005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113600744A (en) * | 2021-07-08 | 2021-11-05 | 安徽省含山县林头郑孙铸造厂 | Back sand conveying and feeding device for casting |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 |