CN112157211A - Simple special sand mixing device - Google Patents
Simple special sand mixing device Download PDFInfo
- Publication number
- CN112157211A CN112157211A CN202011071911.5A CN202011071911A CN112157211A CN 112157211 A CN112157211 A CN 112157211A CN 202011071911 A CN202011071911 A CN 202011071911A CN 112157211 A CN112157211 A CN 112157211A
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- driving cylinder
- sand
- pneumatic
- stirring
- mixing device
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- 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
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
Abstract
The invention discloses a simple special sand mixing device, which comprises a sand containing barrel, a support, a rotary hinge, a stirring suspension beam, a pneumatic pump and a pneumatic stirrer, wherein the support is arranged on the side edge of the sand containing barrel, the rotary hinge is arranged on the support, the stirring suspension beam is movably arranged through the rotary hinge, the pneumatic pump and the pneumatic stirrer are arranged on the stirring suspension beam, the pneumatic pump is used for providing an air source for the pneumatic stirrer, and the pneumatic stirrer is positioned in the sand containing barrel or above the sand containing barrel under the rotation regulation of the rotary hinge. The invention ensures the ration of the special sand and the uniformity of the mixed sand, saves the using amount of the special sand, greatly improves the qualification rate of sand molds and sand cores, ensures the quality of products and reduces the production cost for enterprises; in addition, the invention adopts a special pneumatic stirrer, and the special pneumatic stirrer automatically floats up and down during stirring, thereby effectively avoiding the phenomena of layering and segregation of mortar and improving the quality of special sand.
Description
Technical Field
The invention relates to the technical field of casting production of resin self-hardening sand mold steel castings, in particular to a simple special sand mixing device.
Background
The resin self-hardening sand mold steel casting is produced in order to solve the problems that special sand is often used at a local position when some casting defects are used for molding and core making, the special sand is often manually mixed due to factors such as high price, small single use amount and the like, the mixing cannot be ensured to be uniform during manual mixing due to the fact that the special sand is used and the addition amount of a resin curing agent cannot be fixed, the hardening speed of the special sand is not uniform after hardening, a large amount of gas is generated during pouring and the like, and the produced steel casting has new casting defects.
Disclosure of Invention
The invention aims to provide a simple special sand mixing device, which solves the defects of the traditional manual mixing method.
The invention realizes the purpose through the following technical scheme:
the utility model provides a simple and easy special sand mixes device, includes flourishing sand bucket, still includes support, rotatory hinge, stirring hanging beam, pneumatic pump and pneumatic agitator, the side at flourishing sand bucket is established to the support, rotatory hinge mounting is on the support, the stirring hanging beam is through rotatory hinge movable mounting, pneumatic pump and pneumatic agitator are installed on the stirring hanging beam, and wherein the pneumatic pump is used for providing the air supply for pneumatic agitator, and pneumatic agitator is located flourishing sand bucket inside or is located flourishing sand bucket top under the rotation regulation of rotatory hinge.
The pneumatic stirrer comprises a central tube, a driving tube, an air nozzle and a stirring assembly, wherein the top end of the central tube is communicated with a pneumatic pump, an air hole is formed in the tube wall of the lower end of the central tube, the driving tube is rotatably connected to the lower end of the central tube, the interior of the driving tube is communicated with the interior of the central tube through the air hole, the air nozzle is arranged on the outer wall of the driving tube, the air nozzle is communicated with the interior of the driving tube, the air injection direction of the air nozzle is tangential to the circumferential direction of the driving tube, and the stirring assembly is fixedly connected to the outer wall of the driving tube;
gas pumped by the pneumatic pump is sprayed out by the air nozzle after sequentially passing through the inside of the central tube, the air hole and the inside of the driving cylinder, and the driving cylinder is driven to rotate by utilizing the reaction force of air spraying, so that the stirring assembly is driven to stir.
The further improvement lies in that the air nozzles are two, and the two air nozzles are arranged in a central symmetry manner.
The stirring assembly is further improved in that the stirring assembly consists of a fixing frame and stirring rods, the stirring rods are provided with a plurality of stirring rods, and all the stirring rods are horizontally installed at intervals through the fixing frame.
The further improvement is that a blocking plate is fixedly arranged on the pipe wall of the central pipe and is positioned above all air holes, the peripheral edge of the blocking plate is in sealing contact with the inner wall of the driving cylinder, the inside of the driving cylinder is divided into an upper independent cavity and a lower independent cavity by the blocking plate, a spring and a flat plate are arranged in the upper cavity, the top end of the spring is connected with the inner top of the driving cylinder, the bottom end of the spring is connected with the top surface of the flat plate, the bottom surface of the flat plate is in rotatable contact with the top surface of the blocking plate, a connecting pipe is arranged at the bottom end of the central pipe, a movable rod capable of moving up and down is connected in the connecting pipe, the bottom end of the movable rod extends out of the driving cylinder, a pore plate is fixedly connected at the bottom end of the movable rod, the pore plate is in contact with and rotatable connection with the bottom of the driving, the through holes at the bottom of the driving cylinder are overlapped with or completely staggered with the through holes on the pore plate;
the flow area of the central tube is larger than that of the air nozzle, larger than that of the through hole and smaller than the total flow area of the air nozzle and the through hole.
The further improvement is that the peripheral edge of the baffle plate is provided with a piston ring for sealing and movably contacting with the inner wall of the driving cylinder.
The further improvement lies in that the top surface of the blocking plate is provided with a plurality of rollers, the rollers are in rolling contact with the flat plate, and the rolling direction of the rollers is tangent to the circumferential direction of the blocking plate.
The further improvement lies in that the inner wall of the connecting pipe is provided with a clamping key along the length direction, and the movable rod is connected with the clamping key in a matching way.
The improved structure is characterized in that the bottom edge of the driving cylinder is provided with a ring groove, the edge of the pore plate is provided with a clamping edge, and the clamping edge is movably embedded into the ring groove.
The sand bucket is further improved in that weight scale marks are arranged in the sand bucket.
The invention has the beneficial effects that: the invention ensures the ration of the special sand and the uniformity of the mixed sand, saves the using amount of the special sand, greatly improves the qualification rate of sand molds and sand cores, ensures the quality of products and reduces the production cost for enterprises; in addition, the invention adopts a special pneumatic stirrer, and the special pneumatic stirrer automatically floats up and down during stirring, thereby effectively avoiding the phenomena of layering and segregation of mortar and improving the quality of special sand.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the construction of a pneumatic blender;
FIG. 3 is a schematic view of the structure of the orifice plate and the bottom of the drive cylinder;
in the figure: 1. a sand bucket; 2. a support; 3. rotating the hinge; 4. stirring the suspension beam; 5. a pneumatic pump; 6. a pneumatic stirrer; 601. a central tube; 602. a drive cylinder; 603. an air nozzle; 604. a stirring assembly; 605. air holes; 606. a barrier plate; 607. a spring; 608. a flat plate; 609. a connecting pipe; 610. a movable rod; 611. an orifice plate; 612. a through hole; 613. a piston ring; 614. a roller; 615. and (4) clamping edges.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Referring to fig. 1 to 3, a simple special sand mixing device comprises a sand containing barrel 1, wherein weight scale marks are arranged in the sand containing barrel 1, the sand mixing device further comprises a support 2, a rotary hinge 3, a stirring suspension beam 4, a pneumatic pump 5 and a pneumatic stirrer 6, the support 2 is arranged on the side edge of the sand containing barrel 1, the support 2 can be fixedly arranged or can be movable according to actual production requirements, the rotary hinge 3 is arranged on the support 2, the stirring suspension beam 4 is movably arranged through the rotary hinge 3, the rotary hinge 3 is used for connecting the support 2 and the stirring suspension beam 4, the pneumatic stirrer 6 is conveniently lifted after sand mixing, the pneumatic pump 5 and the pneumatic stirrer 6 are arranged on the stirring suspension beam 4, wherein the pneumatic pump 5 is used for providing a gas source (stirring power) for the pneumatic stirrer 6, and when sand mixing, the pneumatic stirrer 6 extends into the sand containing barrel 1 under the rotation regulation of the rotary hinge 3 for stirring, after the sand mixing is finished, or the pneumatic stirrer 6 is lifted up and positioned above the sand containing barrel 1 under the sitting of the rotating hinge 3.
The operation process of the sand mulling comprises the following steps: the sand containing barrel 1 is placed well, and the pneumatic stirrer 6 is lowered; filling quantitative special raw sand into the sand containing barrel 1 according to the production requirement and the weight scale lines, and adding quantitative resin and curing agent according to the sand amount and the specified proportion; starting the pneumatic pump 5 to enable the pneumatic stirrer 6 to stir the special sand for 40-60 s; the pneumatic pump 5 is turned off, the pneumatic stirrer 6 is lifted, and sand is discharged. Through the operations, the quantification of the sand, the resin and the curing agent is ensured, and the sand mixing quality is also ensured.
Further, the pneumatic stirrer 6 comprises a central tube 601, a driving cylinder 602, an air nozzle 603 and a stirring component 604, wherein the top end of the central tube 601 is communicated with the pneumatic pump 5, the tube wall of the lower end of the central tube 601 is provided with a plurality of air holes 605, the driving cylinder 602 is rotatably connected to the lower end of the central tube 601, and meanwhile, in order to ensure the sealing property of the contact position of the driving cylinder 602 and the central tube 601 during rotation, oil sealing can be carried out at the contact position; the inside intercommunication through gas pocket 605 and center tube 601 of drive cylinder 602, air nozzle 603 is established at the outer wall of drive cylinder 602, and air nozzle 603 and the inside intercommunication of drive cylinder 602, and the jet-propelled direction of air nozzle 603 is tangent with the circumferencial direction of drive cylinder 602, and stirring subassembly 604 fixed connection is at the outer wall of drive cylinder 602.
When the stirring device works, gas pumped by the pneumatic pump 5 sequentially passes through the inside of the central pipe 601, the air hole 605 and the inside of the driving cylinder 602 and is sprayed out by the air nozzle 603, and the driving cylinder 602 is driven to rotate by the counterforce of air spraying, so that the stirring component 604 is driven to stir. The pressure of the compressed air is 0.4-0.9MPa, and the rotating speed of the stirring component 604 is controlled at 100-.
Specifically, there are two air nozzles 603, and the two air nozzles 603 are arranged in a central symmetry, so that the air-jet reaction force of the two air nozzles 603 promotes the rotation of the driving cylinder 602 to the maximum extent. The stirring assembly 604 is composed of a fixing frame and stirring rods, the fixing frame is connected to the outer wall of the driving cylinder 602, the number of the stirring rods is a plurality, and all the stirring rods are horizontally installed at intervals through the fixing frame.
Furthermore, a blocking plate 606 is fixedly arranged on the tube wall of the central tube 601, the blocking plate 606 is positioned above all the air holes 605, the peripheral edge of the blocking plate 606 is in sealing contact with the inner wall of the driving tube 602, the inside of the driving tube 602 is divided into an upper cavity and a lower cavity by the blocking plate 606, gas introduced into the central tube 601 enters the lower cavity, the driving tube 602 can move up and down along the central tube 601 at the same time, and the blocking plate 606 is fixed, so that the space between the upper cavity and the lower cavity of the driving tube 602 is changed; a spring 607 and a flat plate 608 are arranged in the upper cavity, the top end of the spring 607 is connected with the inner top of the driving cylinder 602, the bottom end of the spring 607 is connected with the top surface of the flat plate 608, the bottom surface of the flat plate 608 is rotatably contacted with the top surface of the blocking plate 606, the bottom end of the central tube 601 is provided with a connecting tube 609, a movable rod 610 capable of moving up and down is connected in the connecting tube 609, the movable rod 610 cannot rotate relative to the connecting tube 609, the bottom end of the movable rod 610 extends out of the driving cylinder 602, the bottom end of the movable rod 610 is fixedly connected with a pore plate 611, the pore plate 611 is contacted with and rotatably connected with the bottom of the driving cylinder 602, a plurality of through holes 612 are respectively formed in the pore plate 611 and the bottom of the driving cylinder 602 rotates relative to the pore plate 611, and the through holes; when the gas is overlapped, the gas in the driving cylinder 602 is partially ejected from the gas nozzle 603 and partially ejected from the through hole 612, and when the gas is completely shifted, the gas in the driving cylinder 602 is ejected only from the gas nozzle 603. In any state, gas is always ejected from the gas nozzle 603, thereby ensuring that the driving cylinder 602 can always rotate.
It should be noted that the flow area of the center tube 601 is larger than the flow area of the air nozzles 603, larger than the flow area of the through holes 612, and smaller than the total flow area of the air nozzles 603 plus the through holes 612. For example, the flow area of the center tube 601 is 10 units, the flow area of all the air nozzles 603 is 6 units, and the flow area of all the through holes 612 is 6 units. Thus, when the gas in the driving cylinder 602 is only ejected from the gas nozzle 603, the exhaust amount is smaller than the intake amount, the gas in the lower cavity of the driving cylinder 602 is rapidly increased in a short time, the driving cylinder 602 is pressed to move downwards, the lower cavity is increased, the spring 607 is compressed, and the corresponding stirring assembly 604 also moves downwards; when the gas in the driving cylinder 602 is partially ejected from the gas nozzle 603 and partially discharged from the through hole 612, the exhaust amount is larger than the intake amount, the gas in the lower cavity of the driving cylinder 602 is suddenly reduced in a short time, the driving cylinder 602 moves upward under the action of the spring 607, and the corresponding stirring assembly 604 also moves upward. And because the driving cylinder 602 is rotating all the time, the through hole 612 at the bottom of the driving cylinder 602 and the through hole 612 on the pore plate 611 are alternately changed between overlapping and staggering, so that the stirring component 604 is lifted continuously, the transverse stirring height of each stirring rod is adjusted continuously, the condition of stirring mortar at a certain height all the time can not occur, and the condition that the mortar at a certain height is not stirred all the time can not occur, therefore, the phenomena of mortar layering and segregation can be effectively avoided, and the stirring device can adapt to stirring of high-viscosity and pasty materials.
In particular, the blocking plate 606 has a piston ring 613 at its outer periphery for sealing and movably contacting with the inner wall of the driving cylinder 602, and the piston ring 613 is made of wear-resistant rubber material, so as to increase the sealing performance of the contact surface, reduce friction force and reduce wear. The top surface of the blocking plate 606 is provided with a plurality of rollers 614, the rollers 614 are in rolling contact with the flat plate 608, and the rolling direction of the rollers 614 is tangential to the circumferential direction of the blocking plate 606, so that rolling friction can be used for replacing sliding friction, the friction force is reduced, and the high-degree rotation of the driving cylinder 602, the spring 607 and the flat plate 608 is ensured.
In addition, the inner wall of the connecting tube 609 is provided with a locking key (not shown in the figure) along the length direction, and the movable rod 610 is connected with the locking key in a matching way, so that the movable rod 610 can move up and down and cannot rotate, but other connecting structures can be adopted here. The bottom edge of the driving cylinder 602 is provided with a ring groove, the edge of the pore plate 611 is provided with a clamping edge 615, and the clamping edge 615 is movably embedded into the ring groove, so that the pore plate 611 is always attached to the bottom of the driving cylinder 602, and the contact surface except the through hole 612 can rotate relatively and has good sealing performance.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The utility model provides a simple and easy special type sand mixes device, includes flourishing sand bucket (1), its characterized in that: still include support (2), rotation hinge (3), stirring hanging beam (4), pneumatic pump (5) and pneumatic agitator (6), the side at flourishing sand bucket (1) is established in support (2), install on support (2) rotation hinge (3), stirring hanging beam (4) is through rotation hinge (3) movable mounting, install on stirring hanging beam (4) pneumatic pump (5) and pneumatic agitator (6), wherein pneumatic pump (5) are used for providing the air supply for pneumatic agitator (6), and pneumatic agitator (6) are located flourishing sand bucket (1) inside or are located flourishing sand bucket (1) top under the rotation regulation of rotation hinge (3).
2. The simple special sand mixing device as claimed in claim 1, wherein: the pneumatic stirrer (6) comprises a central tube (601), a driving cylinder (602), an air nozzle (603) and a stirring assembly (604), wherein the top end of the central tube (601) is communicated with a pneumatic pump (5), an air hole (605) is formed in the tube wall of the lower end of the central tube (601), the driving cylinder (602) is rotatably connected to the lower end of the central tube (601), the interior of the driving cylinder (602) is communicated with the interior of the central tube (601) through the air hole (605), the air nozzle (603) is arranged on the outer wall of the driving cylinder (602), the air nozzle (603) is communicated with the interior of the driving cylinder (602), the air injection direction of the air nozzle (603) is tangential to the circumferential direction of the driving cylinder (602), and the stirring assembly (604) is fixedly connected to the outer wall of the driving cylinder (602);
the gas pumped by the pneumatic pump (5) is sprayed out by the gas nozzle (603) after sequentially passing through the inside of the central pipe (601), the gas hole (605) and the inside of the driving cylinder (602), and the driving cylinder (602) is driven to rotate by the reactive force of gas spraying so as to drive the stirring component (604) to stir.
3. A simple special sand mixing device according to claim 2, characterized in that: the number of the air nozzles (603) is two, and the two air nozzles (603) are arranged in a central symmetry manner.
4. A simple special sand mixing device according to claim 2, characterized in that: the stirring assembly (604) comprises a fixing frame and stirring rods, wherein the stirring rods are provided with a plurality of stirring rods, and all the stirring rods are installed at intervals horizontally through the fixing frame.
5. A simple special sand mixing device according to claim 2, characterized in that: the pipe wall of the central pipe (601) is fixedly provided with a blocking plate (606), the blocking plate (606) is positioned above all air holes (605), the peripheral edge of the blocking plate (606) is in sealing contact with the inner wall of the driving cylinder (602), the blocking plate (606) divides the inside of the driving cylinder (602) into an upper independent cavity and a lower independent cavity, a spring (607) and a flat plate (608) are arranged in the upper cavity, the top end of the spring (607) is connected with the inner top of the driving cylinder (602), the bottom end of the spring (607) is connected with the top surface of the flat plate (608), the bottom surface of the flat plate (608) is in rotatable contact with the top surface of the blocking plate (606), the bottom end of the central pipe (601) is provided with a connecting pipe (609), a movable rod (610) capable of moving up and down is connected in the connecting pipe (609), the bottom end of the movable rod (610) extends out of the driving cylinder (, the orifice plate (611) is in contact with and rotatably connected with the bottom of the driving cylinder (602), a plurality of through holes (612) are formed in the orifice plate (611) and the bottom of the driving cylinder (602), when the driving cylinder (602) rotates, the bottom of the driving cylinder (602) rotates relative to the orifice plate (611), and the through holes (612) in the bottom of the driving cylinder (602) are overlapped with or completely staggered with the through holes (612) in the orifice plate (611);
the flow area of the central pipe (601) is larger than that of the air nozzle (603), larger than that of the through hole (612) and smaller than the total flow area of the air nozzle (603) and the through hole (612).
6. A simple special sand mixing device according to claim 5, characterized in that: the peripheral edge of the blocking plate (606) is provided with a piston ring (613) which is used for being in sealing and movable contact with the inner wall of the driving cylinder (602).
7. A simple special sand mixing device according to claim 5, characterized in that: the top surface of the blocking plate (606) is provided with a plurality of rollers (614), the rollers (614) are in rolling contact with the flat plate (608), and the rolling direction of the rollers (614) is tangential to the circumferential direction of the blocking plate (606).
8. A simple special sand mixing device according to claim 5, characterized in that: the inner wall of connecting pipe (609) is equipped with along length direction's card key, movable rod (610) is connected with the cooperation of card key.
9. A simple special sand mixing device according to claim 5, characterized in that: the bottom edge of a driving barrel (602) is provided with a ring groove, the edge of the pore plate (611) is provided with a clamping edge (615), and the clamping edge (615) is movably embedded into the ring groove.
10. The simple special sand mixing device as claimed in claim 1, wherein: the sand containing barrel (1) is internally provided with weight scale marks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071911.5A CN112157211A (en) | 2020-10-09 | 2020-10-09 | Simple special sand mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011071911.5A CN112157211A (en) | 2020-10-09 | 2020-10-09 | Simple special sand mixing device |
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| Publication Number | Publication Date |
|---|---|
| CN112157211A true CN112157211A (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011071911.5A Pending CN112157211A (en) | 2020-10-09 | 2020-10-09 | Simple special sand mixing device |
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| CN (1) | CN112157211A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201579011U (en) * | 2009-11-13 | 2010-09-15 | 张伟权 | Pneumatic stirring device |
| CN102836665A (en) * | 2012-09-19 | 2012-12-26 | 常州大学 | Mixing stirrer with paddle with airflow driven by air pressure |
| CN105833769A (en) * | 2016-05-16 | 2016-08-10 | 怡成屏障（张家港）科技有限公司 | Dispersion machine for producing environment-friendly low-carbon paint |
| CN206139057U (en) * | 2016-10-31 | 2017-05-03 | 天津鹰麟节能科技发展有限公司 | Ceramic composite agitator with raising and lowering functions |
| CN206296420U (en) * | 2016-12-22 | 2017-07-04 | 宁夏朗盛精密制造技术有限公司 | A kind of sand casting chromite sand mixing device |
| CN206508874U (en) * | 2016-12-07 | 2017-09-22 | 常州合威新材料科技有限公司 | Auxiliary agent automatic stirrer |
| CN207076417U (en) * | 2017-08-11 | 2018-03-09 | 海南亿康水处理工程有限公司 | A kind of Pneumatic mixing device |
-
2020
- 2020-10-09 CN CN202011071911.5A patent/CN112157211A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201579011U (en) * | 2009-11-13 | 2010-09-15 | 张伟权 | Pneumatic stirring device |
| CN102836665A (en) * | 2012-09-19 | 2012-12-26 | 常州大学 | Mixing stirrer with paddle with airflow driven by air pressure |
| CN105833769A (en) * | 2016-05-16 | 2016-08-10 | 怡成屏障（张家港）科技有限公司 | Dispersion machine for producing environment-friendly low-carbon paint |
| CN206139057U (en) * | 2016-10-31 | 2017-05-03 | 天津鹰麟节能科技发展有限公司 | Ceramic composite agitator with raising and lowering functions |
| CN206508874U (en) * | 2016-12-07 | 2017-09-22 | 常州合威新材料科技有限公司 | Auxiliary agent automatic stirrer |
| CN206296420U (en) * | 2016-12-22 | 2017-07-04 | 宁夏朗盛精密制造技术有限公司 | A kind of sand casting chromite sand mixing device |
| CN207076417U (en) * | 2017-08-11 | 2018-03-09 | 海南亿康水处理工程有限公司 | A kind of Pneumatic mixing device |
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Application publication date: 20210101 |