CN210023662U - Anti-hardening sand silo for lost foam casting production line - Google Patents
Anti-hardening sand silo for lost foam casting production line Download PDFInfo
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- CN210023662U CN210023662U CN201920744702.9U CN201920744702U CN210023662U CN 210023662 U CN210023662 U CN 210023662U CN 201920744702 U CN201920744702 U CN 201920744702U CN 210023662 U CN210023662 U CN 210023662U
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- sand
- stirring
- mounting plate
- sand silo
- hardening
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Abstract
The utility model relates to a sand storehouse technical field for lost foam casting, in particular to a sand storehouse that prevents hardening for lost foam casting production line, sand storehouse body, first agitator motor, (mixing) shaft, stirring leaf and prevent the mechanism that hardens, first agitator motor fixes at the top central authorities of sand storehouse body upper end, the (mixing) shaft is located the sand storehouse body, the (mixing) shaft is connected with the drive end of first agitator motor, the multi-disc stirring leaf is evenly installed in the (mixing) shaft lower part, prevent that the mechanism that hardens is detachable installs in sand storehouse body bottom; the anti-hardening mechanism comprises a mounting plate, a second stirring motor, a circular mounting disc and stirring teeth, wherein a cylindrical blanking through groove is formed in the center of the mounting plate, and a mounting disc groove is formed in one side inside the mounting plate; the second stirring motor is fixed on the outer side of the mounting plate. The utility model discloses can be to the sand for the lost foam casting production line that falls out in the sand storehouse sand mould for the loose processing is done, the molding sand coalescence blocking through mixing the preparation of avoiding storing in the sand storehouse and influence the quality of sand casting product.
Description
Technical Field
The utility model relates to a sand storehouse technical field is used in lost foam casting, in particular to lost foam casting production line is with preventing sand storehouse that hardens.
Background
The lost foam casting method is a novel casting method which comprises the steps of bonding and combining paraffin or foam models with similar sizes and shapes of castings into model clusters, coating refractory paint on the model clusters, drying the model clusters, burying the model clusters in dry quartz sand for vibration modeling, pouring under negative pressure to gasify the model, enabling liquid metal to occupy the position of the model, solidifying and cooling the model to form the castings. The lost foam casting is a new process with near allowance-free and accurate molding, and the process does not need to take a mold, a parting surface or a sand core, so that the casting does not have flash, burrs or draft inclination, and the precision of the casting is improved.
The lost foam casting needs to prepare molding sand in advance, the molding sand is generally formed by mixing molding materials such as casting raw sand, a molding sand binder, auxiliary materials and the like according to a certain proportion, and the molding sand can be clay sand, sodium silicate sand, cement sand, resin sand and the like according to different binders. The mixed and prepared molding sand is intensively stored in a sand warehouse, and further can be applied to the streamlined molding of sand mold casting. Green sand is commonly used for casting of small and medium-sized castings, the molding sand is easy to harden after being stored in a sand warehouse, the molding sand for casting needs to have the characteristic of good fluidity, the hardened molding sand has poor fluidity due to storage, the streamlined molding processing is not facilitated, and the precision and the product quality of the formed castings are finally influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a disappearance mould casting production line is with preventing sand storehouse that hardens can be to the molding sand for the disappearance mould casting production line that falls out in the sand storehouse and be loose processing, avoids the molding sand coalescence blocking of the process of mixing preparation that stores in the sand storehouse and influences the quality of sand casting product.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize: an anti-hardening sand silo for a lost foam casting production line comprises a sand silo body, a first stirring motor, a stirring shaft, stirring blades and an anti-hardening mechanism, wherein the first stirring motor is fixed in the center of the top of the upper end of the sand silo body;
the anti-hardening mechanism comprises a mounting plate, a second stirring motor, a circular mounting disc and stirring teeth, wherein a cylindrical blanking through groove is formed in the center of the mounting plate, and a mounting disc groove is formed in one side inside the mounting plate;
the second stirring motor is fixed on the outer side of the mounting plate, the driving end of the second stirring motor is connected with a circular mounting plate, the circular mounting plate is positioned in the mounting plate groove, and the top of the circular mounting plate is positioned in the mounting plate groove;
the stirring teeth are fixed on the front part of the circular mounting disc.
Further, the stirring teeth comprise outer ring teeth and inner ring teeth, and the stirring teeth are arranged on the front side of the circular mounting disc in a circular distribution and equidistant mode.
Furthermore, the cross sections of the outer ring teeth and the inner ring teeth are both equilateral triangles.
Further, the size of the outer ring of teeth is larger than that of the inner ring of teeth.
Further, the distribution interval of the outer ring teeth is larger than that of the inner ring teeth.
Further, many spinal branchs vaulting pole are fixed with to sand storehouse body bottom symmetry, and the pole seat is all installed to every spinal branch vaulting pole bottom.
Further, an internal thread connecting column is arranged at the bottom of the sand silo body, an internal thread connecting ring is arranged at the top of the mounting plate, and the internal thread connecting column and the internal thread connecting ring are connected in a thread fit mode.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the anti-hardening mechanism is arranged at the bottom of the anti-hardening sand silo for the lost foam casting production line, which comprises a mounting plate, a second stirring motor, a circular mounting plate and stirring teeth, wherein the circular mounting plate is driven to rotate by the operation of the second stirring motor, the molding sand is rapidly stirred and loosened through the outer ring teeth and the inner ring teeth of the equilateral triangle section, the outer ring teeth and the inner ring teeth of the equilateral triangle section have three convex edges and corners, so that the molding sand can be efficiently stirred and beaten, the first-stage loosening of the hardened molding sand is realized through the outer ring teeth, the hardened molding sand is changed into small-particle hardened molding sand, the small-particle hardened molding sand is subjected to second-stage loosening through the inner ring teeth, soft and fine molding sand is obtained, the loosening treatment effect on the molding sand is improved, thereby avoiding the molding sand prepared by mixing and stored in the sand warehouse from agglomerating to affect the quality of sand casting products.
(2) The sand storehouse that the disappearance mould casting production line of design is with preventing hardening can drive the (mixing) shaft rotation through first agitator motor work, stirs the molding sand of sand storehouse body bottom through the spiral fan blade shape stirring leaf that the (mixing) shaft lower part set up, and the whereabouts of supplementary molding sand carries out preliminary loose processing to the molding sand simultaneously.
Drawings
FIG. 1 is a schematic structural view of an anti-hardening sand silo for a lost foam casting production line of the present invention;
FIG. 2 is a cross-sectional view of the anti-hardening mechanism of the present invention;
fig. 3 is a schematic view of the installation structure of the middle circular installation disc and the stirring teeth of the present invention.
In the figure: 1. a sand silo body; 2. a first stirring motor; 3. a stirring shaft; 4. stirring blades; 5. a manual butterfly valve; 6. a support bar; 7. a butterfly valve adjusting knob; 8. a hardening prevention mechanism; 9. a rod seat; 11. a sand inlet; 81. mounting a plate; 82. an internal thread connecting ring; 83. a second stirring motor; 84. a circular mounting plate; 85. stirring teeth; 851. outer ring teeth; 852. inner ring teeth.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.
As shown in fig. 1 to 3, an anti-hardening sand silo for an expendable pattern casting production line comprises a sand silo body 1, a first stirring motor 2, a stirring shaft 3, stirring blades 4 and an anti-hardening mechanism 8, wherein the first stirring motor 2 is fixed at the center of the top of the sand silo body 1, the stirring shaft 3 is positioned inside the sand silo body 1, the stirring shaft 3 is connected with the driving end of the first stirring motor 2, a plurality of stirring blades 4 are uniformly arranged at the lower part of the stirring shaft 3, the stirring blades 4 are stirring blades in a common spiral blade shape, molding sand formed by mixing molding materials such as raw sand for casting, molding sand binder and auxiliary additive according to a certain proportion is conveyed into the sand silo body 1 for storage, a sand inlet 11 is arranged at the side end of the top of the sand silo body 1, the molding sand can be conveyed into the sand silo body 1 through the sand inlet 11, when the expendable pattern casting uses the sand silo, the stirring shaft 3 is driven to rotate through the operation of the first stirring, the molding sand of 1 bottom of sand storehouse body is stirred through stirring leaf 4 that (mixing) shaft 3 lower parts set up, and the whereabouts of supplementary molding sand carries out preliminary loose processing to the molding sand simultaneously.
The anti-hardening mechanism 8 is detachably mounted at the bottom of the sand silo body 1, the anti-hardening mechanism 8 comprises a mounting plate 81, a second stirring motor 83, a circular mounting disc 84 and stirring teeth 85, wherein a cylindrical blanking through groove (not shown in the figure) is formed in the center of the mounting plate 81 and is used for releasing molding sand stored in the sand silo body 1, a mounting disc groove 86 is formed in one side of the inside of the mounting plate 81, the circular mounting disc 84 is located in the mounting disc groove 86, and the top of the circular mounting disc 84 is located in the mounting disc groove 86, so that the circular mounting disc 84 cannot block the falling of the molding sand in the cylindrical blanking through groove;
the second stirring motor 83 is fixed on the outer side of the mounting plate 81, the driving end of the second stirring motor 83 is connected with the circular mounting plate 84, and the stirring teeth 85 are fixed on the front part of the circular mounting plate 84; the first stirring motor 2 and the second stirring motor 83 are both single-phase alternating current motors driven by 220v mains supply, the first stirring motor 2 is preferably a speed reduction motor, the working power of the first stirring motor 2 is selected according to the volume of the sand silo body 1, and the power of the second stirring motor 83 is selected according to the drift diameter of the cylindrical blanking through groove.
When the sand storehouse is used in lost foam casting, drive circular mounting disc 84 through second agitator motor 83 work and rotate, stir the molding sand fast through the anterior stirring tooth 85 of circular mounting disc 84, loose the processing, preferably, stirring tooth 85 includes outer circle tooth 851 and inner circle tooth 852, stirring tooth 85 is total two circles, set up the front side at circular mounting disc 84 with the equidistant setting of circular distribution, circular mounting disc 84 stirs the molding sand fast through outer circle tooth 851 and inner circle tooth 852 respectively during rotation, preferably, outer circle tooth 851 and inner circle tooth 852's cross-section is equilateral triangle, the outer circle tooth 851 and the inner circle tooth 852 of equilateral triangle cross-section have three salient edges and corners, can the efficient stir the molding sand, hit the power, improve the loose treatment effect to the molding sand.
Preferably, the size of outer lane tooth 851 is greater than the size of inner circle tooth 852, and the distribution interval of outer lane tooth 851 is greater than the distribution interval of inner circle tooth 852, realizes the loose of hardened molding sand through outer lane tooth 851, becomes the hardened molding sand of small granule, carries out the secondary through inner circle tooth 852 to the hardened molding sand of small granule loose, obtains the tiny molding sand of softness, and outer lane tooth 851 selects the type according to the granule size of molding sand with the distribution interval of inner circle tooth 852.
As an optimal technical scheme of the design, a plurality of supporting rods 6 are symmetrically fixed at the bottom of the sand silo body 1, and a rod seat 9 is installed at the bottom of each supporting rod 6.
As a preferred technical scheme of this design, the bottom of sand magazine body 1 is provided with the internal thread spliced pole, the mounting panel 81 top is provided with the internal thread go-between 82, be connected through screw-thread fit between internal thread spliced pole and the internal thread go-between 82, can be with preventing that mechanism 8 that hardens is quick installation and dismantlement in sand magazine body 1 bottom through the internal thread go-between 82.
One specific embodiment, as shown in fig. 1 to 3, the anti-hardening sand warehouse for the lost foam casting production line of the present invention is used, before use, molding sand mixed by molding materials such as raw sand for casting, molding sand binder and auxiliary additive according to a certain proportion is conveyed to the sand warehouse body 1 through a sand inlet 11 arranged at the top side end of the sand warehouse body 1 for storage; when the lost foam is cast, the stirring shaft 3 is driven to rotate by the operation of the first stirring motor 2, the molding sand at the bottom of the sand warehouse body 1 is stirred by the spiral fan blade-shaped stirring blades 4 arranged at the lower part of the stirring shaft 3, the falling of the molding sand is assisted, and meanwhile, the molding sand is subjected to primary loosening treatment; work through second agitator motor 83 drives circular mounting disc 84 and rotates, outer lane tooth 851 and inner circle tooth 852 through the equilateral triangle cross-section carry out rapid mixing to the molding sand, loose the processing carries out, outer lane tooth 851 and inner circle tooth 852 in the equilateral triangle cross-section have three protrusion edges and corners, can stir the molding sand by the efficient, hit and beat, it is loose to realize the first order of molding sand that hardens through outer lane tooth 851, become the molding sand that hardens of tiny granule, it is loose to carry out the second grade to the molding sand that hardens of tiny granule through inner circle tooth 852, obtain the tiny molding sand that loosens, improve the loose treatment effect to the molding sand.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the invention without departing from the spirit and scope of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a lost foam casting production line is with sand storehouse that prevents hardening which characterized in that: the sand silo comprises a sand silo body (1), a first stirring motor (2), a stirring shaft (3), stirring blades (4) and a hardening prevention mechanism (8), wherein the first stirring motor (2) is fixed in the center of the top of the upper end of the sand silo body (1), the stirring shaft (3) is located inside the sand silo body (1), the stirring shaft (3) is connected with the driving end of the first stirring motor (2), a plurality of stirring blades (4) are uniformly arranged at the lower part of the stirring shaft (3), and the hardening prevention mechanism (8) is detachably arranged at the bottom of the sand silo body (1);
the anti-hardening mechanism (8) comprises a mounting plate (81), a second stirring motor (83), a circular mounting plate (84) and stirring teeth (85), wherein a cylindrical blanking through groove is formed in the center of the mounting plate (81), and a mounting plate groove (86) is formed in one side inside the mounting plate (81);
the second stirring motor (83) is fixed on the outer side of the mounting plate (81), the driving end of the second stirring motor (83) is connected with the circular mounting plate (84), the circular mounting plate (84) is located in the mounting plate groove (86), and the top of the circular mounting plate (84) is located in the mounting plate groove (86);
the stirring teeth (85) are fixed at the front part of the circular mounting disc (84).
2. The anti-hardening sand silo for the lost foam casting production line according to claim 1, characterized in that: the stirring teeth (85) comprise outer ring teeth (851) and inner ring teeth (852), and the stirring teeth (85) are arranged on the front side of the circular mounting disc (84) in a circular distribution and equidistant mode in two circles.
3. The anti-hardening sand silo for the lost foam casting production line according to claim 2, characterized in that: the sections of the outer ring teeth (851) and the inner ring teeth (852) are all equilateral triangles.
4. The anti-hardening sand silo for the lost foam casting production line according to claim 3, characterized in that: the size of the outer ring teeth (851) is larger than that of the inner ring teeth (852).
5. The anti-hardening sand silo for the lost foam casting production line according to claim 4, characterized in that: the distribution interval of the outer ring teeth (851) is larger than that of the inner ring teeth (852).
6. The anti-hardening sand silo according to any one of claims 1 to 5, wherein the anti-hardening sand silo comprises: a plurality of supporting rods (6) are symmetrically fixed at the bottom of the sand silo body (1), and rod seats (9) are installed at the bottoms of the supporting rods (6).
7. The anti-hardening sand silo according to any one of claims 1 to 5, wherein the anti-hardening sand silo comprises: the sand silo body (1) bottom is provided with the internal thread spliced pole, mounting panel (81) top is provided with internal thread go-between (82), be connected through screw-thread fit between internal thread spliced pole and the internal thread go-between (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920744702.9U CN210023662U (en) | 2019-05-23 | 2019-05-23 | Anti-hardening sand silo for lost foam casting production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920744702.9U CN210023662U (en) | 2019-05-23 | 2019-05-23 | Anti-hardening sand silo for lost foam casting production line |
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| Publication Number | Publication Date |
|---|---|
| CN210023662U true CN210023662U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920744702.9U Expired - Fee Related CN210023662U (en) | 2019-05-23 | 2019-05-23 | Anti-hardening sand silo for lost foam casting production line |
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| CN (1) | CN210023662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558983A (en) * | 2022-02-23 | 2022-05-31 | 福建新佳鑫实业有限公司 | Sand warehouse with cooling function for lost foam casting |
-
2019
- 2019-05-23 CN CN201920744702.9U patent/CN210023662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558983A (en) * | 2022-02-23 | 2022-05-31 | 福建新佳鑫实业有限公司 | Sand warehouse with cooling function for lost foam 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: 20200207 Termination date: 20200523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |