CN212469626U - Scraper blade for roller of sand mixer - Google Patents
Scraper blade for roller of sand mixer Download PDFInfo
- Publication number
- CN212469626U CN212469626U CN202020663994.6U CN202020663994U CN212469626U CN 212469626 U CN212469626 U CN 212469626U CN 202020663994 U CN202020663994 U CN 202020663994U CN 212469626 U CN212469626 U CN 212469626U
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- CN
- China
- Prior art keywords
- scraping
- block
- sand
- rod
- brush
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- 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.)
- Expired - Fee Related
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- 239000004576 sand Substances 0.000 title claims abstract description 56
- 238000007790 scraping Methods 0.000 claims abstract description 150
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000009434 installation Methods 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 230000008261 resistance mechanism Effects 0.000 claims abstract description 3
- 230000035939 shock Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 13
- 239000003110 molding sand Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 244000035744 Hura crepitans Species 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 235000019013 Viburnum opulus Nutrition 0.000 description 2
- 244000071378 Viburnum opulus Species 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model discloses a roller scraping plate of a sand mixer, which comprises a scraping plate body, a sand mixer and a cleaning mechanism, wherein the scraping plate body comprises an impact resistance mechanism, a sand scraping mechanism and a cleaning mechanism; the anti-impact mechanism comprises an installation block, a first spring, a limiting block and a telescopic scraping rod, wherein the installation block is internally provided with an installation groove, and the first spring, the limiting block and the telescopic scraping rod are sequentially installed in the installation groove from top to bottom; the scraping mechanism comprises a trapezoidal scraping block, and the surface of a grinding wheel of the scraping block is tangent; the cleaning mechanism comprises a scraping wall provided with a through hole and a brush structure, the brush structure is arranged on the scraping wall and is adjacent to the scraping block, and the brush structure comprises a connecting rod arranged below the scraping wall and an arc-shaped brush head connected with the connecting rod; scrape wall fixed mounting on the installation piece, with scrape and be equipped with around the piece assorted through-hole and scrape the brush, flexible pole of scraping runs through the through-hole and scrapes the piece and link to each other to the messenger scrapes the piece and obtains the clearance through scraping the brush district. The utility model discloses need not frequently to dismantle clearance and convenient operation, improve clearance effect and simple structure, extension scraper blade life, reduction change rate.
Description
Technical Field
The utility model relates to a sand mixer equipment technical field, concretely relates to sand mixer is scraper blade for grinding wheel.
Background
The roller type sand mixer is widely used in the casting industry as a device for mixing molding sand, and the traditional roller type sand mixer drives a central shaft to rotate through a speed reducer in the sand mixing process, so that a roller rolls the molding sand with adhesive in a circular motion manner, and thus the molding sand mixed with the adhesive is often adhered to the roller of the sand mixer; if the sand is adhered to the grinding wheel, more adhesive is accumulated on the part of the molding sand, and generally, an operator can use some tools to clean the molding sand adhered to the grinding wheel in the sand mixing process, but the operation is carried out under the condition of certain danger, and if the cleaning is not carried out, the mixing quality of the molding sand is affected, and the requirement of molding the sand box cannot be met.
1. In the prior art, a scraper is adopted for scraping the molding sand on the grinding wheel, but the existing scraper usually needs to be disassembled and cleaned, and frequent disassembly can loosen the installation of the scraper, influence the scraping effect and further influence the sand mixing quality; and the prior scraper adopts a flat plate structure, and is difficult to clean after sand bonding.
2. In the working process, the impact force of the roller of the sand mixer on the scraper is overlarge in the rotating process to damage the scraper, and the contact between the scraper and the roller of the sand mixer is unreasonable, if the contact distance between the scraper and the roller is overlarge, the molding sand with the adhesive on the roller cannot be completely scraped, and only part of the molding sand can be scraped when a bonding layer is thick; furthermore, if the two are in contact with each other too tightly, the frictional resistance is large when the molding sand is scraped off, and the life of the scraper is reduced.
3. The existing scraper is not thorough when scraping the mixed material, the scraping effect is relatively poor, the structure is relatively single, the cleaning effect is not ideal, and the requirement of molding the sand box cannot be met.
Disclosure of Invention
In view of this, the utility model aims at the not enough of prior art, provide one kind need not frequently to dismantle clearance and convenient operation, prevent that the rubbing resistance and the impact force of runner to the scraper blade are too big and damage the scraper blade, improve clearance effect and simple structure, extension scraper blade life, reduce the scraper blade for the roller of sand mixer of change rate.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the scraper for the roller of the sand mixer is designed, and comprises a scraper body, wherein the scraper body is arranged at the end part of a scraper fixing rod, the scraper fixing rod is fixedly arranged on a central shaft in a sand mixing barrel, a rotating rod is transversely and fixedly arranged on the central shaft, the rollers are arranged at two ends of the rotating rod, so that the scraper body and the rollers rotate in the same speed and the same direction relative to the central shaft of the sand mixer, the scraper body comprises an anti-impact mechanism, a sand scraping mechanism and a cleaning mechanism, and the anti-impact mechanism penetrates through the cleaning mechanism and is simultaneously connected with the sand scraping mechanism;
the shock resistance mechanism comprises an installation block with an installation groove formed inside, a first spring, a limiting block and a telescopic scraping rod, wherein the first spring, the limiting block and the telescopic scraping rod are sequentially installed in the installation groove from top to bottom;
the scraping mechanism comprises a trapezoidal scraping block, and the scraping block is connected with the bottom of the telescopic scraping rod and is tangent to the surface of the grinding wheel;
the cleaning mechanism comprises a scraping wall provided with a through hole and a brush structure, the brush structure is mounted on the bottom surface of the scraping wall and is adjacent to the scraping block, and the brush structure comprises a connecting rod arranged below the scraping wall and an arc-shaped brush head connected with the connecting rod; scrape wall fixed mounting in on the installation piece, the size of through-hole with scrape the size phase-match of piece be equipped with around the through-hole and scrape the brush, flexible scraping rod runs through the through-hole with scrape the piece and link to each other to the piece is scraped through scraping the brush district and obtaining the clearance.
In the technical scheme, the trapezoid scraping block is adopted, certain molding sand can be adhered to the scraping block when the scraping block is used, the whole scraping plate body is driven by the speed reducing motor to rotate, and a part of mixed sand adhered to the scraping block can be thrown out through two side faces of the trapezoid scraping block in the rotating process, so that the mixed sand remained on the scraping block is reduced; the telescopic scraping rod with the second spring and the limiting block which are arranged in the mounting groove are matched for use, so that the scraping plate can be buffered in the rotation process of the grinding wheel, and the scraping plate is prevented from being damaged due to overlarge impact force of the grinding wheel on the scraping block; when the scraping device works, the telescopic scraping rod is stretched to enable the scraping block to be in full and reasonable contact with a grinding wheel of a sand mixer, so that the phenomenon that scraping is insufficient due to too large contact gap between the scraping plate and the grinding wheel and the material mixing effect is influenced or the scraping plate is damaged due to too large friction resistance due to too tight contact between the scraping plate and the grinding wheel is avoided, and the service life of the scraping plate is shortened; the telescopic scraping rod penetrates through the scraping wall with the through hole, the scraping brushes are arranged on the periphery of the through hole, the size and the shape of the through hole are matched with the size and the shape of the scraping block, and the scraping wall is fixed on the mounting block; scrape the brush structure of wall below and be close to and scrape the piece setting, can will scrape the piece and strike off the face of grinding after through the clearance of brush structure again one time, the molding sand on the grinding wheel is cleared up the back by the secondary, avoids on the grinding wheel like rolling snowball accumulation molding sand, improves the clearance effect greatly, and the plate body is scraped in effective protection, guarantees even mulling, satisfies the sand box demand of modelling.
Preferably, the scraper bodies are two and are symmetrically arranged along the rotation direction of the grinding wheel.
Preferably, the mounting groove is a concave groove.
Preferably, the scraping block is welded at the bottom of the telescopic scraping rod.
Preferably, the scraping block is movably connected with the telescopic scraping rod.
Preferably, the included angle between the bottom surface of the scraping block and the grinding surface of the grinding wheel is 0-90 degrees, and the two side surfaces of the scraping block are in a sawtooth shape.
Preferably, the scraping wall is mounted on the mounting block through a fixing arm, and the fixing arm is 7-shaped.
The beneficial effects of the utility model reside in that:
1. the utility model adopts the structure that the first spring, the telescopic scraping rod with the second spring and the limiting block are arranged in the mounting groove, the spring can play a role of buffering the scraping block in the rotation process of the grinding wheel, the grinding wheel is prevented from damaging the scraping plate body due to overlarge impact force of the scraping block, and the grinding wheel is prevented from being adhered with mixed sand to influence the mixed sand quality; the bottom of the telescopic scraping rod is connected with the scraping block, so that the scraping block can be in full and reasonable contact with a grinding wheel of a sand mixer, the phenomenon that the scraping is insufficient due to overlarge contact gap between the scraping block and the grinding wheel, the material mixing effect is influenced, or the scraping block is damaged due to overlarge friction resistance due to overlarge contact between the scraping block and the grinding wheel, and the service life of the scraping block is shortened is avoided;
2. the utility model adopts the trapezoid scraping block with the two side surfaces in the shape of the sawtooth, and in the process that the scraper blade body rotates along with the central shaft, the mixed sand can be thrown away partially through the two side surfaces of the trapezoid scraping block, so that the mixed sand remained on the scraping block is reduced, and the mixed sand compacted by agglomeration can be rolled again after being scattered and crushed by the design of the sawtooth wave, so that the uniformity of the mixed sand is improved; the contained angle between the bottom surface of scraping the piece and the grinding face of grinding wheel is 0~90 degrees, scrapes one side of piece and grinding wheel contact more sharp, strikes off the effect thoroughly, surpasss the dull and stereotyped contact of bottom surface and grinding face greatly, and the effect of scraping sand is more obvious.
3. The utility model discloses a scraping the pole and running through scraping the wall of band-pass hole and scraping the piece and link to each other telescopically, when scraping the piece and need clearing up, scrape the pole through tensile flexible, make and scrape the through-hole that the piece scraped the brush through the area to the compounding that the adhesion was gone up to the messenger is brushed away promptly, and need not to scrape the piece and dismantle the clearance of getting off, avoids frequently dismantling, scrapes the piece installation not hard up, influences the clearance effect.
4. The utility model discloses a set up the brush structure on scraping the wall, scrape the brush structure of wall below and be close to and scrape the piece setting, can carry out the secondary through the brush structure again and clear up scraping the piece and strike off the face of mill after, avoid on the runner wheel like rolling snowball and accumulate the molding sand, improve the clearance effect greatly, effective protection scrapes the piece, guarantees even mulling, satisfies the sand box demand of modelling.
Drawings
FIG. 1 is a schematic view of the scraping plate for the roller of the medium sand mixer of the present invention;
FIG. 2 is a schematic diagram of a side view of a scraping plate for a roller of a medium sand mixer according to the present invention;
FIG. 3 is an enlarged schematic view of the scraping wall, the through hole and the scraping block of the present invention;
reference numbers in the figures: the scraper blade of 1 center pin, 2 dead levers, 3 installation pieces, 4 mounting grooves, 5 first springs, 6 stopper, 7 second springs, 8 flexible poles of scraping, 9 scrape the piece, 10 connecting rods, 11 brush heads, 12 grinding wheels, 13 scrape the wall, 14 gear motor, 15 through-holes, 16 fixed arms, 17 scrape the brush, 18 axis of rotation.
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 kind of sand mixer roller uses the scraper blade, refer to fig. 1 to fig. 3, including the scraper blade body, the scraper blade body is installed on the end of fixed link 2 of the scraper blade, the fixed link 2 of the scraper blade is fixedly installed on central axis 1 in the sand mixer, the horizontal fixed installation has dwang 18 on the central axis 1, both ends of the dwang 18 are fitted with the roller 12, so as to make the scraper blade body and roller 12 rotate with the same speed and the same direction relative to central axis 1 of the sand mixer, the scraper blade body includes the mechanism of resisting shock and scraping sand mechanism and clearing mechanism, the mechanism of resisting shock runs through the clearing mechanism, link with scraping sand mechanism at the same;
the anti-impact mechanism comprises an installation block 3 with an installation groove 4 formed inside, a first spring 5, a limiting block 6 and a telescopic scraping rod 8, wherein the first spring 5, the limiting block 6 and the telescopic scraping rod are sequentially installed in the installation groove 4 from top to bottom;
the scraping mechanism comprises a trapezoidal scraping block 9, and the scraping block 9 is connected with the bottom of the telescopic scraping rod 8 and is tangent to the surface of the grinding wheel 12;
the cleaning mechanism comprises a scraping wall 13 provided with a through hole 15 and a brush structure, the brush structure is arranged on the bottom surface of the scraping wall 13 and is adjacent to the scraping block 9, and the brush structure comprises a connecting rod 10 arranged below the scraping wall 13 and an arc-shaped brush head 11 connected with the connecting rod 10; scrape wall fixed mounting on installation piece 3, the size of through-hole 15 and the size phase-match of scraping piece 9 are equipped with around through-hole 15 and scrape brush 17, and flexible pole 8 of scraping runs through-hole 15 and scrapes the piece and link to each other to the messenger scrapes piece 9 and obtains the clearance through scraping the brush district.
In order to clean the mixed materials on the two grinding wheels 12 of the sand mixer at the same time, the scraping plate bodies are two and are symmetrically arranged along the rotating direction of the grinding wheels 12.
In order to make the scraper block 9 more firmly installed, the scraper block 9 is welded on the telescopic scraper bar 8.
The included angle between the bottom surface of the scraping block 9 and the grinding surface of the grinding wheel 12 is 0-90 degrees, the side of the scraping block 9, which is in contact with the grinding wheel 12, is sharper, and the scraping effect is thorough; in order to break up, loosen and compact the agglomerated mixed material, two side surfaces of the scraping block 9 are arranged to be saw-toothed.
In order to make the wall scraper more securely mounted, the wall scraper 13 is fixed to the mounting block 3 by means of a fixing arm 16 in the form of a "7".
Example 2:
the utility model provides a scraper blade for roller of sand mixer, the difference with embodiment 1 lies in, scrapes piece 9 and flexible 8 swing joint of scraping the pole, when scraping piece 9 damage and need changing, easy to assemble dismantlement.
In the above embodiments, the apparatus elements referred to are conventional apparatus elements unless otherwise specified.
The utility model discloses sand mixer is concrete working method of scraper blade for grinding wheel does: when the sand mixer works, the speed reducing motor 14 drives the central shaft 1 to rotate, the grinding wheel 12 and the scraping plate body rotate along with the central shaft 1, mixed materials are adhered to the grinding wheel 12, at the moment, the scraping block 9 is in full contact with the grinding surface of the grinding wheel 12 by adjusting the length of the telescopic scraping rod 8, the scraping block starts to clean the mixed materials adhered to the surface of the grinding wheel 12, and at the moment, part of the compacted and agglomerated mixed materials pass through two inclined sawtooth-shaped side surfaces of the trapezoidal scraping block 9 in the rotating process of the mixed materials on the scraping block 9 and are thrown out after being scattered and crushed; scraping the area of the grinding wheel 12 with the molding sand by the scraping block, and performing secondary cleaning by a brush; when the scraping block needs to be cleaned, the telescopic scraping rod 8 penetrating through the through hole 15 of the scraping wall 13 is stretched, so that the scraping block 9 passes through the area of the scraping brush 17 in the through hole 15, and the mixed material adhered to the scraping block 9 is brushed away.
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 (7)
1. The scraper for the grinding wheel of the sand mixer comprises a scraper body, wherein the scraper body is arranged at the end part of a scraper fixing rod (2), the scraper fixing rod (2) is fixedly arranged on a central shaft (1) in a sand mixing barrel, a rotating rod (18) is transversely and fixedly arranged on the central shaft (1), grinding wheels (12) are arranged at two ends of the rotating rod (18) so that the scraper body and the grinding wheels (12) can rotate in the same speed and the same direction relative to the central shaft (1) of the sand mixer, and the scraper is characterized in that the scraper body comprises an anti-impact mechanism, a sand scraping mechanism and a cleaning mechanism, and the anti-impact mechanism penetrates through the cleaning mechanism and is simultaneously connected with the sand scraping mechanism;
the shock resistance mechanism comprises an installation block (3) with an installation groove (4) formed inside, a first spring (5), a limiting block (6) and a telescopic scraping rod (8) provided with a second spring (7), wherein the first spring (5), the limiting block (6) and the telescopic scraping rod are sequentially installed in the installation groove (4) from top to bottom;
the scraping mechanism comprises a trapezoidal scraping block (9), and the scraping block (9) is connected with the bottom of the telescopic scraping rod (8) and is tangent to the surface of the grinding wheel (12);
the cleaning mechanism comprises a scraping wall (13) provided with a through hole (15) and a brush structure, the brush structure is arranged on the bottom surface of the scraping wall (13) and is adjacent to the scraping block (9), and the brush structure comprises a connecting rod (10) arranged below the scraping wall (13) and an arc-shaped brush head (11) connected with the connecting rod (10); scrape wall fixed mounting in on installation piece (3), the size of through-hole (15) with scrape the size phase-match of piece (9) be equipped with around through-hole (15) and scrape brush (17), flexible scraping rod (8) run through-hole (15) with scrape the piece and link to each other to the messenger scrape piece (9) and obtain the clearance through scraping the brush district.
2. A blade for a roller of a sand mill according to claim 1, characterized in that said blade body is two and arranged symmetrically in the direction of rotation of the roller (12).
3. The blade for a sand mill roller according to claim 1, characterized in that the mounting groove (4) is a concave groove.
4. The blade for a sand mill roller according to claim 1, characterized in that the scraping block (9) is welded at the bottom of the telescopic scraping bar (8).
5. The blade for a roller of a sand mill according to claim 1, characterized in that said scraping block (9) is movably connected to said telescopic scraping bar (8).
6. The scraping plate for the grinding wheel of the sand mixer as claimed in claim 2, wherein the included angle between the bottom surface of the scraping block (9) and the grinding surface of the grinding wheel (12) is 0-90 degrees, and two side surfaces of the scraping block (9) are serrated.
7. A blade for a sand mill roller according to claim 1, characterized in that the scraping wall (13) is mounted on the mounting block (3) by means of a fixed arm (16), the fixed arm (16) being "7" shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020663994.6U CN212469626U (en) | 2020-04-27 | 2020-04-27 | Scraper blade for roller of sand mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020663994.6U CN212469626U (en) | 2020-04-27 | 2020-04-27 | Scraper blade for roller of sand mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212469626U true CN212469626U (en) | 2021-02-05 |
Family
ID=74454423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020663994.6U Expired - Fee Related CN212469626U (en) | 2020-04-27 | 2020-04-27 | Scraper blade for roller of sand mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212469626U (en) |
-
2020
- 2020-04-27 CN CN202020663994.6U patent/CN212469626U/en not_active Expired - Fee Related
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Legal Events
| 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 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |