CN116372116A - Wax pattern sand spraying device for wax pattern casting and sand spraying method thereof - Google Patents
Wax pattern sand spraying device for wax pattern casting and sand spraying method thereof Download PDFInfo
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- CN116372116A CN116372116A CN202310492331.0A CN202310492331A CN116372116A CN 116372116 A CN116372116 A CN 116372116A CN 202310492331 A CN202310492331 A CN 202310492331A CN 116372116 A CN116372116 A CN 116372116A
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- 239000004576 sand Substances 0.000 title claims abstract description 255
- 238000005507 spraying Methods 0.000 title claims abstract description 131
- 238000005266 casting Methods 0.000 title claims abstract description 21
- 238000005488 sandblasting Methods 0.000 claims abstract description 30
- 230000002265 prevention Effects 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005422 blasting Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 1
- 238000005495 investment casting Methods 0.000 abstract description 4
- 238000007598 dipping method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to the technical field of precision casting, in particular to a wax pattern sand spraying device for wax pattern casting and a sand spraying method thereof. By arranging the sand blasting mechanism and the auxiliary mechanism, the fireproof sand spraying pipes are circumferentially arranged, so that the fireproof sand can be sprayed out from all angles, and the coverage area of the fireproof sand can be increased; when the rotary piece rotates and passes through the fireproof sand spraying port, the fireproof sand sprayed out from the straight line is scattered, and the scattered fireproof sand is obliquely sputtered, so that the fireproof sand is covered in a gap where the straight line is blocked by the sand blasting more easily, and the coverage area of the sand blasting is further increased.
Description
Technical Field
The invention relates to the technical field of precision casting, in particular to a wax pattern sand spraying device for wax pattern casting and a sand spraying method thereof.
Background
The casting method is to firstly make the workpiece to be made into a model by using wax material, dip the refractory coating on the surface of the model, then spread refractory sand, after the model is dried and solidified, heat the model, remove the wax material from the pouring gate to form a blank shell, bake the blank shell to form a firm mould shell, pour the metal liquid from the pouring gate, and condense to form the metal casting.
The prior art discloses a part of invention patents related to the precision casting field, and Chinese patent publication No. CN102397985B discloses an automatic shell making unit of a precision casting robot, which comprises a six-degree-of-freedom robot, a slurry dipping machine and a sand spraying machine, wherein an upper clamp and a lower clamp on the six-degree-of-freedom robot are directly controlled by an operation console to carry out slurry dipping and sand spraying, so that the yield and the working efficiency are improved, the requirement on the manual operation level is reduced, meanwhile, the influence of dust on staff is also reduced, the quality problem of products is not influenced, and the cost is reduced;
in the prior art, slurry dipping and sand spraying of a wax mould are required to be repeated for a plurality of times so as to ensure the hardness and quality of the mould shell during roasting, but the wax mould of a complex workpiece is formed by assembling various parts, various grooves and bulges are formed on the surface of the wax mould, while the surface of the wax mould can be covered by liquid fireproof paint during slurry dipping, the wax mould can be clamped by a manipulator to rotate during sand spraying, but all parts on the surface of the wax mould can be blocked mutually, the grooves and gaps on the surface of the wax mould are difficult to uniformly contact with fireproof sand, and in the processes of slurry dipping and sand spraying for a plurality of times, the thickness of the fireproof sand stained at the part which is difficult to cover during sand spraying every time is insufficient, and the strength of the mould shell is insufficient after sand spraying is finished.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a wax pattern sand spraying device for wax pattern casting and a sand spraying method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a wax matrix drenches sand device for wax matrix casting, includes the installation base, the upper surface fixed mounting of installation base has outer protection to drench sand housing, outer protection drenches sand housing's front surface fixed mounting has anti-drip baffle, just outer protection drenches sand housing's rear surface fixed mounting has back installation apron, back installation apron's rear surface is provided with the sand blasting machine who is used for drenching sand, the inside that is close to the rear back installation apron of outer protection drenches sand housing locates to be fixed with the sealed mounting panel that keeps apart fire prevention sand, and the front surface intermediate position department of sealed mounting panel is provided with the auxiliary mechanism of supplementary multi-angle sandblast, and unloading mechanism has been seted up to outer protection drenches sand housing's inside below, and the lower surface of installation base sets up the collection mechanism that is used for collecting fire prevention sand.
Preferably, the sand blasting mechanism comprises a pressurizing output air pump fixedly arranged on the rear surface of a rear mounting cover plate, an air sand feeding pipe for feeding is communicated with the middle position of the rear surface of the pressurizing output air pump, a connecting and feeding pipe is fixedly communicated with the middle position of the front surface of the pressurizing output air pump, the front end of the connecting and feeding pipe penetrates through the rear mounting cover plate, connecting shunt pipes are fixedly communicated with the front end of the connecting and feeding pipe, the connecting shunt pipes are circumferentially arranged, one ends of the connecting shunt pipes, far away from the connecting and feeding pipe, are fixedly communicated with fireproof sand spraying pipes, the fireproof sand spraying pipes penetrate through the sealing mounting plate and are fixedly arranged on the inner wall of an outer protection sand spraying housing, the fireproof sand spraying pipes are circumferentially arranged, and fireproof sand spraying ports for sand blasting are formed in a front-rear linear array on the inner side surface of the fireproof sand spraying pipes;
the fire prevention sand mist gets into by the gas sand inlet pipe, in the pressurization of pressurization output air pump input to connect the conveying pipe, in the connecting shunt tubes is got into through connecting the conveying pipe again, from fire prevention sand drenches sand mouth blowout after getting into the fire prevention sand shower at last, fire prevention sand shower is the circumference and arranges and to be can follow each angle blowout with fire prevention sand, cooperation wax matrix's rotation can improve the coverage area of fire prevention sand.
Preferably, the blanking mechanism comprises a guiding blanking groove, the guiding blanking groove is formed in the lower end of the inner part of the outer protection sand spraying housing, a blanking opening penetrating through the outer protection sand spraying housing is formed in the bottom end of the inner part of the outer protection sand spraying housing, the guiding blanking groove is communicated with the blanking opening, a feeding groove is formed in the position, located in the lower half section, of the inner side wall of the outer protection sand spraying housing, the feeding groove is located in the gap of a fireproof sand spraying pipe in the lower half section of the inner side of the outer protection sand spraying housing, and the feeding groove is communicated with the guiding blanking groove;
the fire-proof sand sprayed to the upper part can fall down along the inclined fire-proof sand spraying pipe, the fire-proof sand sprayed to the lower part can enter the guide blanking groove along the feeding groove, and finally, the fire-proof sand is uniformly discharged from the blanking opening.
Preferably, the collecting mechanism comprises a lower collecting box fixedly arranged at the position of the lower surface of the mounting base, and a sliding collecting box is connected inside the lower collecting box in a sliding manner and positioned at the position of the lower surface of the connecting feeding pipe.
Preferably, the auxiliary mechanism comprises a driving annular rack and a servo driving motor, the servo driving motor is fixedly arranged at the middle position of the front surface of the sealing mounting plate, the front end of the servo driving motor is provided with an output rotary table connected with the output shaft of the servo driving motor, four side connecting rotary rods are fixedly connected to the outer side surface of the output rotary table at equal intervals, the front surfaces of the four side connecting rotary rods are fixedly connected with first mounting rods, the rear surfaces of the four side connecting rotary rods are fixedly connected with second mounting rods, connecting rotary shafts are linearly arranged on the outer side surfaces of the second mounting rods in an array manner in a rotary connection mode, driven gears are fixedly connected to the outer sides of the connecting rotary shafts on the surfaces of the second mounting rods in a fixed connection mode, the driven gears are in meshed connection with the driving annular rack, the outer sides of the connecting rotary shafts on the surfaces of the second mounting rods are far away from the driven gears, second rotary gears are fixedly arranged on the outer sides of the first mounting rods, the outer sides of the first mounting rods are in a fixed connection mode, and the outer sides of the first rotary shafts on the first mounting rods are in a fixed connection mode, and the first rotary shafts on the outer sides of the first mounting rods are in a fixed connection mode, and the first rotary shafts on the adjacent rotary shafts are in a fixed connection mode, and the first rotary shafts on the side surfaces of the side connecting rotary shafts are far from the first rotary shafts are in a fixed connection mode, and the rotary shafts on the side rotary driving ring gear is in a synchronous connection mode;
the rotary piece is formed by combining three groups of blades, and is positioned at a position close to the fireproof sand spraying opening;
the inside of first installation pole with the second installation pole is close to the position department of connecting the pivot is provided with and is used for the clearance fire prevention sand drenches sand mouth.
Preferably, the length of the first mounting rod is the same as that of the fireproof sand spraying pipe, the number of the rotating pieces is the same as that of the fireproof sand spraying openings, and the rotating pieces can scatter fireproof sand sprayed from the fireproof sand spraying openings at corresponding positions.
Preferably, the adjusting mechanism comprises a sliding chamber, the connection part of the second mounting rod and the first mounting rod with the connecting rotating shaft is provided with a sliding chamber, one end, away from the connecting rotating shaft, of the sliding chamber is rotationally connected with a rotating connector, the position, close to the top end of the connecting rotating shaft, of the sliding chamber is fixedly connected with an adjusting screw sleeve, the upper end of the connecting rotating shaft is fixedly connected with a screw thread head, the screw thread head is positioned above the adjusting screw sleeve, the surface of the connecting rotating shaft is fixedly connected with a fixing ring, the fixing ring is positioned below the adjusting screw sleeve, the bottom of the fixing ring is fixedly connected with a reset spring, and the reset spring is sleeved on the surface of the connecting rotating shaft and is in contact with the bottom surface inside the sliding chamber;
when the output carousel is in reverse rotation, the connection pivot is when rotatory, and the direction of rotating towards keeping away from the regulation swivel nut removes until the fixture block contacts with the inner wall of slip cavity, and the connection pivot limited position still rotates this moment, but stretches out a section distance to the outside for connect epaxial rotary piece of pivot and drench the sand mouth towards fire prevention sand and be close to the laminating, clear up the fire prevention sand drenches the sand mouth outside that probably blocks up at pivoted in-process, also can assist the sandblast simultaneously.
Preferably, the surface of one side of the rotary piece, which is close to the fireproof sand spraying opening, is a horizontal plane.
Preferably, the four corners of the lower surface of the mounting base are fixedly provided with supporting legs for supporting.
The invention also provides a sand spraying method of the wax pattern sand spraying device for wax pattern casting, which comprises the following steps:
s1: spraying fireproof sand in the outer protective sand spraying housing by starting the sand spraying mechanism, and then sending the wax pattern stained with the slurry into the outer protective sand spraying housing for sand spraying;
s2: when sand is sprayed, the auxiliary mechanism is started to spray the fireproof sand from a plurality of angles or direct or sputtered wax patterns towards the middle position;
s3: and taking out the wax mould after the shower is finished, and collecting redundant fireproof sand in a collecting mechanism after passing through a blanking mechanism.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the sand blasting mechanism and the auxiliary mechanism are arranged, when in sand blasting, the fireproof sand mixed gas enters from the gas sand feeding pipe, is pressurized by the pressurizing output air pump and then is input into the connecting and feeding pipe, then enters into the connecting and splitting pipe through the connecting and feeding pipe, finally enters into the fireproof sand spraying pipe and is sprayed out from the fireproof sand spraying port, the fireproof sand spraying pipe is circumferentially arranged, so that the fireproof sand can be sprayed out from all angles, and the coverage area of the fireproof sand can be increased by matching with the rotation of the wax mould; when the rotary piece rotates and passes through the fireproof sand spraying port, the fireproof sand sprayed out from the straight line is scattered, and the scattered fireproof sand is obliquely sputtered, so that the fireproof sand is covered in a gap where the straight line is blocked by the sand blasting more easily, and the coverage area of the sand blasting is further increased.
According to the invention, the auxiliary mechanism and the adjusting mechanism are arranged, so that when the output turntable rotates positively, the auxiliary mechanism assists in sand blasting as described above, so that the end part of the connecting rotating shaft slightly stretches into the sliding chamber, and a certain distance is kept between the rotating piece and the fireproof sand spraying opening;
when the output carousel is reversed, the screw thread head rotates, the direction rotation towards keeping away from the regulation swivel nut, until the screw thread head be located with the below of regulation swivel nut, and compress reset spring, the screw thread head on connection pivot top is located the below of regulation swivel nut this moment, the connection pivot still can rotate, but stretch out a section distance outward, make the epaxial rotary piece of connection pivot be close to the laminating towards fire prevention sand drenching the sand mouth, clear up the fire prevention sand drenching the sand mouth outside that probably blocks up at pivoted in-process, be favorable to avoiding fire prevention sand drenching the sand mouth and being glued the fire prevention sand jam that has the thick liquid, simultaneously also can assist the sandblast.
Drawings
FIG. 1 is a schematic flow chart of a sand shower method of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of another view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with the present invention;
FIG. 5 is a schematic perspective view of the rear half of the present invention taken along the midline;
FIG. 6 is an enlarged view of a portion of B of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of a partial structure of a fire-resistant sand shower of the present invention;
FIG. 8 is a schematic perspective view of the front half of the present invention taken along the midline;
FIG. 9 is an enlarged view of a portion of C of FIG. 8 in accordance with the present invention;
FIG. 10 is an enlarged view of part of D of FIG. 9 in accordance with the present invention;
fig. 11 is a schematic view of an installation structure of the connecting shaft of the present invention.
In the figure: 1. a mounting base; 2. an outer protective sand spraying cover shell; 201. a cover plate is installed at the rear; 202. a seal mounting plate; 203. driving the annular rack; 3. an anti-drip baffle; 4. a lower collection box; 401. sliding the collection box; 5. fireproof sand spraying pipes; 501. a fire-proof sand spraying port; 6. a pressurized output air pump; 601. connecting a feeding pipe; 602. a gas sand feeding pipe; 603. connecting a shunt tube; 7. a servo drive motor; 701. an output turntable; 702. the side is connected with a rotating rod; 703. a first mounting bar; 704. a driven gear; 705. tooth synchronous belt; 706. a first rotating gear; 707. a second mounting bar; 708. a second rotating gear; 709. a rotary piece; 8. the connecting rotating shaft; 801. a sliding chamber; 802. a thread head; 803. adjusting the screw sleeve; 804. a fixing ring; 805. a return spring; 9. guiding the blanking groove; 901. a feed opening; 902. a feed tank.
Description of the embodiments
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The wax pattern sand spraying device for the wax pattern casting comprises a mounting base 1, wherein an outer protection sand spraying housing 2 is fixedly arranged on the upper surface of the mounting base 1, an anti-dripping baffle 3 is fixedly arranged on the front surface of the outer protection sand spraying housing 2, a rear mounting cover plate 201 is fixedly arranged on the rear surface of the outer protection sand spraying housing 2, a sand spraying mechanism for spraying sand is arranged on the rear surface of the rear mounting cover plate 201, a sealing mounting plate 202 for isolating fireproof sand is fixedly arranged at the position, close to the rear, of the rear mounting cover plate 201 in the inner part of the outer protection sand spraying housing 2, an auxiliary mechanism for assisting multi-angle sand spraying is arranged at the middle position of the front surface of the sealing mounting plate 202, a discharging mechanism is arranged below the inner part of the outer protection sand spraying housing 2, and a collecting mechanism for collecting fireproof sand is arranged on the lower surface of the mounting base 1;
the specific working mode is as follows, when in use, the sand blasting mechanism is started, fireproof sand is sprayed in the outer protection sand spraying housing 2, then the wax pattern stained with slurry is sent into the outer protection sand spraying housing 2 to spray sand, when sand is sprayed, the auxiliary mechanism is started, the fireproof sand is sprayed from a plurality of angles or the wax pattern which is directly sprayed or sputtered to the middle position, the wax pattern is taken out after spraying, and redundant fireproof sand enters the collecting mechanism after passing through the blanking mechanism to be collected.
As a further embodiment of the present invention, the sand blasting mechanism comprises a pressurizing output air pump 6 fixedly installed on the rear surface of the rear mounting cover plate 201, an air sand feeding pipe 602 for feeding is communicated with the middle position of the rear surface of the pressurizing output air pump 6, a connecting and feeding pipe 601 is fixedly communicated with the middle position of the front surface of the pressurizing output air pump 6, the front end of the connecting and feeding pipe 601 penetrates through the rear mounting cover plate 201, a connecting shunt pipe 603 is fixedly communicated with the front end of the connecting and feeding pipe 601, the connecting shunt pipes 603 are circumferentially arranged, one ends of the connecting shunt pipes 603 far away from the connecting and feeding pipe 601 are fixedly communicated with a fireproof sand spraying pipe 5, the fireproof sand spraying pipe 5 penetrates through the sealing mounting plate 202 and is fixedly installed on the inner wall of the outer protection sand spraying housing 2, the fireproof sand spraying pipe 5 is circumferentially arranged, and fireproof sand spraying ports 501 for blasting are formed in a front-rear linear array on the inner side surface of the fireproof sand spraying pipe 5;
in the prior art, fireproof sand is sprayed from top to bottom, and when sand is sprayed, the fireproof sand is clamped by a mechanical arm to rotate, but all parts on the surface of a wax mould can be blocked mutually, and gaps and ravines on the surface of the wax mould are difficult to uniformly contact with the fireproof sand;
according to the technical scheme, the problem can be solved, and the concrete working mode is that when in sand blasting, fireproof sand mixed gas enters from the air sand feeding pipe 602, is pressurized by the pressurizing output air pump 6 and then is input into the connecting and feeding pipe 601, then enters into the connecting and dividing pipe 603 through the connecting and feeding pipe 601, finally enters into the fireproof sand spraying pipe 5 and then is sprayed out from the fireproof sand spraying opening 501, the fireproof sand spraying pipe 5 is circumferentially arranged and can spray fireproof sand from various angles, and the coverage area of the fireproof sand can be increased by matching with the rotation of the wax mould.
As a further embodiment of the invention, the blanking mechanism comprises a guiding blanking groove 9, the guiding blanking groove 9 is arranged at the inner lower end of the outer protection sand spraying housing 2, a blanking opening 901 penetrating through the outer protection sand spraying housing 2 is arranged at the inner bottom end of the outer protection sand spraying housing 2, the guiding blanking groove 9 is communicated with the blanking opening 901, a feeding groove 902 is arranged at the position of the inner side wall of the outer protection sand spraying housing 2 positioned at the lower half section, the feeding groove 902 is positioned at the gap of the fireproof sand spraying pipe 5 at the lower half section of the inner side of the outer protection sand spraying housing 2, and the feeding groove 902 is communicated with the guiding blanking groove 9;
although the mechanism can increase the coverage area of the fireproof sand, the falling fireproof sand can be accumulated in the inner part of the outer protective sand spraying housing 2, so that the inner part is difficult to clean;
the above-mentioned problem can be solved to this technical scheme, and concrete working method is as follows, and when using, spray the fire prevention sand of top and can fall along the fire prevention sand shower 5 of slope, spray the fire prevention sand of below and can get into the direction down silo 9 inside along feed chute 902, and finally unified is got rid of by feed opening 901 again.
As a further embodiment of the present invention, the collecting mechanism comprises a lower collecting box 4, the lower collecting box 4 is fixedly installed at the lower surface position of the installation base 1, and the inside of the lower collecting box 4 is slidably connected with a sliding collecting box 401, and the sliding collecting box 401 is positioned at the lower position of the connecting feeding pipe 601;
the specific working mode is as follows, the fireproof sand falling along the blanking port 901 enters the sliding collection box 401, and can be taken out manually for reuse.
As a further embodiment of the invention, the auxiliary mechanism comprises a driving annular rack 203 and a servo driving motor 7, the servo driving motor 7 is fixedly arranged at the middle position of the front surface of the sealing mounting plate 202, the front end of the servo driving motor 7 is provided with an output rotary table 701 which is connected with the output shaft of the servo driving motor 7, the outer side surface of the output rotary table 701 is fixedly connected with four side connecting rotary rods 702 at equal intervals, the front surfaces of the four side connecting rotary rods 702 are fixedly connected with a first mounting rod 703, the rear surfaces of the four side connecting rotary rods 702 are fixedly connected with a second mounting rod 707, the outer side surfaces of the second mounting rod 707 and the first mounting rod 703 are provided with connecting rotary shafts 8 in a linear array in a rotary connection mode, the outer side of the connecting rotary shafts 8 positioned on the surface of the second mounting rod 707 is fixedly connected with a driven gear 704, the driven gear 704 is fixedly arranged on the position of the front surface of the sealing mounting plate 202, which is close to the edge, the driven gear 704 is in meshed connection with the driving annular rack 203, the position of the outer side of the connecting rotary shaft 8 positioned on the surface of the second mounting rod 703, which is far away from the driven gear 708 is fixedly connected with a second rotary gear 708, the first rotary gear 706 is positioned between the first rotary shafts 706 and the first rotary shafts 706 which are fixedly connected with the first rotary shafts 706 positioned on the surface of the adjacent rotary shafts 706 and the first rotary shafts 706 which are fixedly connected with the first rotary shafts 706;
the rotary piece 709 is formed by combining three groups of blades, and the rotary piece 709 is positioned at a position close to the fireproof sand spraying port 501;
an adjusting mechanism for cleaning the fireproof sand spraying opening 501 is arranged in the first mounting rod 703 and the second mounting rod 707 at a position close to the connecting rotating shaft 8;
although the scheme can increase the spraying area of the fireproof sand, gaps shielded on the surface of the die are possibly not covered by the fireproof sand in the process of rotating the wax die;
the technical scheme can solve the problems, in the use process, the servo driving motor 7 is started to drive the output rotary table 701 to rotate, four sides of the surface of the output rotary table 701 are connected with the rotary bars 702 to rotate synchronously, and the driven gear 704 is meshed with the driving annular rack 203 to drive the driven gear 704 to rotate in the rotating process, so as to drive the second rotating gear 708 to rotate, and the second rotating gear 708 drives the first rotating gear 706 to rotate through the tooth synchronous belt 705, so as to drive the rotating piece 709 to rotate;
in the sand blasting process, the fire-proof sand sprayed out from the fire-proof sand spraying port 501 is sprayed out in a straight line, the surface of the mold can be preliminarily covered by matching with the rotation of the mold, when the rotary piece 709 rotates and passes through the fire-proof sand spraying port 501, the fire-proof sand sprayed out in a straight line is scattered, the scattered fire-proof sand can be inclined to be sputtered, so that the fire-proof sand can be easily covered in a gap where the straight line is blocked by the sand blasting, and the coverage area of the sand blasting is further increased.
As a further embodiment of the present invention, the length of the first mounting bar 703 is the same as the length of the fire-preventing sand shower 5, and the number of the rotary pieces 709 is the same as the number of the fire-preventing sand shower openings 501;
during sand blasting, the rotary piece 709 can break up the fire-proof sand sprayed from the fire-proof sand spraying port 501 at the corresponding position.
As a further embodiment of the invention, the adjusting mechanism comprises a sliding chamber 801, the connection part of the second mounting rod 707 and the first mounting rod 703 with the connecting rotating shaft 8 is provided with the sliding chamber 801, the position of the sliding chamber 801 close to the top end of the connecting rotating shaft 8 is fixedly connected with an adjusting screw sleeve 803, the upper end of the connecting rotating shaft 8 is fixedly connected with a threaded head 802, the threaded head 802 is positioned above the adjusting screw sleeve 803, the surface of the connecting rotating shaft 8 is fixedly connected with a fixed ring 804, the fixed ring 804 is positioned below the adjusting screw sleeve 803, the bottom of the fixed ring 804 is fixedly connected with a return spring 805, and the return spring 805 is sleeved on the surface of the connecting rotating shaft 8 and is in contact with the bottom surface inside the sliding chamber 801;
during the spraying process, slurry is stained on the surface of the mold, so that the mold can be dripped into the fireproof sand spraying port 501 below to cause blockage;
according to the technical scheme, the problem can be solved, when the spraying process is performed, the servo driving motor can be controlled by the PLC to rotate positively and reversely at regular time, when the output rotary table 701 rotates positively, the auxiliary mechanism assists sand blasting as described above, at the moment, the connecting rotary shaft 8 rotates, the screw thread head 802 connected with the end part of the rotary shaft 8 stretches into the adjusting screw sleeve 803 in the same direction as the screw thread of the adjusting screw sleeve 803, the screw thread head 802 rotates along the inside of the adjusting screw sleeve 803 until the screw thread head 802 moves to the upper part of the adjusting screw sleeve 803 and then continues to rotate, at the moment, the end part of the connecting rotary shaft 8 stretches into the inside of the sliding chamber 801 slightly, and a certain distance is kept between the rotary piece 709 and the fireproof sand spraying opening 501;
when the output rotary table 701 is reversed, the connection rotary shaft 8 rotates synchronously, the thread head 802 is pulled by the return spring 805 to keep fit with the adjusting screw sleeve 803, when the thread head 802 rotates, the thread head 802 rotates in a direction away from the adjusting screw sleeve 803 until the thread head 802 is positioned below the adjusting screw sleeve 803 and compresses the return spring 805, at the moment, the thread head 802 at the top end of the connection rotary shaft 8 is positioned below the adjusting screw sleeve 803, the connection rotary shaft 8 can still rotate, but extends outwards for a certain distance, so that a rotary piece 709 on the connection rotary shaft 8 is close to the fireproof sand spraying port 501 for fitting, and the outer side of the fireproof sand spraying port 501 which is possibly blocked is cleaned in the rotating process, thereby being beneficial to avoiding the fireproof sand spraying port 501 from being blocked by fireproof sand adhered with slurry, and simultaneously assisting in sand blasting.
As a further embodiment of the present invention, a side surface of the rotary blade 709 adjacent to the fire prevention sand shower port 501 is a horizontal plane.
As a further embodiment of the present invention, the lower surface of the mounting base 1 is fixedly provided with support legs at four corners for supporting.
The invention also provides a sand spraying method of the wax pattern sand spraying device for wax pattern casting, which comprises the following steps:
s1: spraying fireproof sand in the outer protective sand spraying housing 2 by starting a sand blasting mechanism, and then sending the wax pattern stained with the slurry into the outer protective sand spraying housing 2 for sand spraying;
s2: when sand is sprayed, the auxiliary mechanism is started to spray the fireproof sand from a plurality of angles or direct or sputtered wax patterns towards the middle position;
s3: and taking out the wax mould after the shower is finished, and collecting redundant fireproof sand in a collecting mechanism after passing through a blanking mechanism.
The working principle of the invention is as follows:
during sand blasting, the fire-proof sand mixed gas enters from the gas sand feeding pipe 602, is pressurized by the pressurizing output air pump 6 and then is input into the connecting and feeding pipe 601, then enters into the connecting and splitting pipe 603 through the connecting and feeding pipe 601, finally enters into the fire-proof sand spraying pipe 5 and then is sprayed out from the fire-proof sand spraying port 501, the fire-proof sand spraying pipe 5 is circumferentially arranged, fire-proof sand can be sprayed out from various angles, and the coverage area of the fire-proof sand can be increased by matching with the rotation of the wax mould.
When the fire-proof sand spraying device is used, fire-proof sand sprayed to the upper part can fall down along the inclined fire-proof sand spraying pipe 5, fire-proof sand sprayed to the lower part can enter the guide blanking groove 9 along the feeding groove 902, and finally, the fire-proof sand is uniformly discharged from the blanking opening 901.
The fireproof sand falling along the blanking port 901 enters the sliding collection box 401 and can be taken out manually for reuse.
The servo driving motor 7 is started to drive the output rotary table 701 to rotate, four sides of the surface of the output rotary table 701 are connected with the rotary rods 702 to rotate synchronously, and the driven gear 704 is meshed with the driving annular rack 203 to drive the driven gear 704 to rotate in the rotating process, so that the second rotating gear 708 is driven to rotate, and the second rotating gear 708 drives the first rotating gear 706 to rotate through the tooth synchronous belt, so that the rotating sheet 709 is driven to rotate;
in the sand blasting process, the fire-proof sand sprayed out from the fire-proof sand spraying port 501 is sprayed out in a straight line, the surface of the mold can be preliminarily covered by matching with the rotation of the mold, when the rotary piece 709 rotates and passes through the fire-proof sand spraying port 501, the fire-proof sand sprayed out in a straight line is scattered, the scattered fire-proof sand can be inclined to be sputtered, so that the fire-proof sand can be easily covered in a gap where the straight line is blocked by the sand blasting, and the coverage area of the sand blasting is further increased.
During spraying, the servo driving motor can be controlled by the PLC to rotate positively and reversely at regular time, when the output rotary table 701 rotates positively, the auxiliary mechanism assists sand blasting as described above, at the moment, the connecting rotary shaft 8 rotates, the screw thread head 802 connected with the end part of the rotary shaft 8 stretches into the adjusting screw sleeve 803 in the same direction as the screw thread of the adjusting screw sleeve 803, the screw thread head 802 rotates along the inside of the adjusting screw sleeve 803 until the screw thread head 802 moves above the adjusting screw sleeve 803 and then continues to rotate, at the moment, the end part of the connecting rotary shaft 8 stretches into the sliding cavity 801 slightly, so that the rotary piece 709 keeps a certain distance from the fireproof sand spraying port 501;
when the output rotary table 701 is reversed, the connection rotary shaft 8 rotates synchronously, the thread head 802 is pulled by the return spring 805 to keep fit with the adjusting screw sleeve 803, when the thread head 802 rotates, the thread head 802 rotates in a direction away from the adjusting screw sleeve 803 until the thread head 802 is positioned below the adjusting screw sleeve 803 and compresses the return spring 805, at the moment, the thread head 802 at the top end of the connection rotary shaft 8 is positioned below the adjusting screw sleeve 803, the connection rotary shaft 8 can still rotate, but extends outwards for a certain distance, so that a rotary piece 709 on the connection rotary shaft 8 is close to the fireproof sand spraying port 501 for fitting, and the outer side of the fireproof sand spraying port 501 which is possibly blocked is cleaned in the rotating process, thereby being beneficial to avoiding the fireproof sand spraying port 501 from being blocked by fireproof sand adhered with slurry, and simultaneously assisting in sand blasting.
The foregoing has shown and described the basic principles, principal features and advantages of the 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 above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a wax matrix drenches sand device for wax matrix casting, includes mounting base (1), its characterized in that: the utility model discloses a sand control device for the fire-proof sand spraying machine, including installation base (1), outer protection drenches sand housing (2) in fixed mounting on the upper surface of installation base (1), outer protection drenches sand housing (2) front surface fixed mounting has antidrip baffle (3), just outer protection drenches sand housing (2) back surface fixed mounting has back installation apron (201), the back surface of back installation apron (201) is provided with the sand blasting mechanism that is used for drenching the sand, the inside of outer protection drenches sand housing (2) is close to the position department fixed mounting who installs apron (201) behind the back has sealed mounting panel (202) of isolation fire-proof sand, and the front surface intermediate position department of sealed mounting panel (202) is provided with auxiliary mechanism of supplementary multi-angle sandblast, and unloading mechanism has been seted up to the inside below of outer protection drenches sand housing (2), and the lower surface of installation base (1) sets up the collection mechanism that is used for collecting the fire-proof sand.
2. The wax pattern sand shower device for wax pattern casting according to claim 1, wherein: the sand blasting mechanism comprises a pressurizing output air pump (6) fixedly arranged on the rear surface of a rear mounting cover plate (201), an air sand feeding pipe (602) used for feeding is communicated with the middle position of the rear surface of the pressurizing output air pump (6), a connecting conveying pipe (601) is fixedly communicated with the middle position of the front surface of the pressurizing output air pump (6), the front end of the connecting conveying pipe (601) penetrates through the rear mounting cover plate (201), a connecting shunt pipe (603) is fixedly communicated with the front end of the connecting conveying pipe (601), the connecting shunt pipe (603) is in circumferential arrangement, one end, far away from the connecting conveying pipe (601), of the connecting shunt pipe (603) is fixedly communicated with a fireproof sand spraying pipe (5), the fireproof sand spraying pipe (5) penetrates through the inner wall of an outer protective sand spraying cover shell (2) and is in circumferential arrangement, and a fireproof sand spraying port (501) used for blasting is linearly arranged behind the inner side surface of the fireproof sand spraying pipe (5).
3. The wax pattern sand shower device for wax pattern casting according to claim 1, wherein: the blanking mechanism comprises a guide blanking groove (9), the guide blanking groove (9) is formed in the lower end of the inner portion of the outer protection sand spraying housing (2), the bottom end of the inner portion of the outer protection sand spraying housing (2) is provided with a blanking opening (901) penetrating through the outer protection sand spraying housing (2), the guide blanking groove (9) is communicated with the blanking opening (901), a feeding groove (902) is formed in the position, located in the lower half section, of the inner side wall of the outer protection sand spraying housing (2), the feeding groove (902) is located in the gap of a fireproof sand spraying pipe (5) in the lower half section of the inner side of the outer protection sand spraying housing (2), and the feeding groove (902) is communicated with the guide blanking groove (9).
4. A wax pattern sand shower apparatus for wax pattern casting as in claim 3, further comprising: the collecting mechanism comprises a lower collecting box (4), the lower collecting box (4) is fixedly arranged at the position of the lower surface of the mounting base (1), a sliding collecting box (401) is connected inside the lower collecting box (4) in a sliding mode, and the sliding collecting box (401) is located at the position of the lower portion of the connecting feeding pipe (601).
5. The wax pattern sand shower device for wax pattern casting according to claim 2, wherein: the auxiliary mechanism comprises a driving annular rack (203) and a servo driving motor (7), the servo driving motor (7) is fixedly arranged at the middle position of the front surface of a sealing mounting plate (202), the front end of the servo driving motor (7) is provided with an output rotary table (701) connected with the output shaft of the servo driving motor (7), the outer side surface of the output rotary table (701) is fixedly connected with four side connecting rotary rods (702) at equal intervals, the front surfaces of the four side connecting rotary rods (702) are fixedly connected with first mounting rods (703), the rear surfaces of the four side connecting rotary rods (702) are fixedly connected with second mounting rods (707), the outer side surfaces of the second mounting rods (707) and the first mounting rods (703) are linearly arranged in an array through a rotary connection mode, driven gears (704) are fixedly connected with the outer sides of the connecting rotary shafts (8) on the surfaces of the second mounting rods (707), the driving annular rack (203) is fixedly arranged at positions, close to the edges of the front surfaces of the sealing mounting plates (202), the driven gears (704) are fixedly connected with the second mounting rods (704), the driven gears (704) are meshed with the second rotary shafts (707), the driven gears (704) are fixedly arranged at positions, and far away from the outer side surfaces (707), the outer side of the connecting rotating shaft (8) positioned on the surface of the first mounting rod (703) is fixedly connected with a first rotating gear (706) parallel to the second rotating gear (708), tooth synchronous belts (705) are respectively and joggled between the second rotating gear (708) and the adjacent surface of the first rotating gear (706) and between the adjacent surfaces of the first rotating gear (706), and rotating sheets (709) are respectively and fixedly connected with one end, far away from the first mounting rod (703), of the connecting rotating shaft (8) positioned on the surface of the first mounting rod (703);
the rotary piece (709) is formed by combining three groups of blades, and the rotary piece (709) is positioned at a position close to the fireproof sand spraying opening (501);
the position inside first installation pole (703) with second installation pole (707) is close to connecting pivot (8) is provided with the adjustment mechanism who is used for clearing up fire prevention sand drenches sand mouth (501).
6. A wax pattern sand shower apparatus for wax pattern casting as in claim 3 or 5, wherein: the length of the first mounting rod (703) is the same as that of the fireproof sand spraying pipes (5), and the number of the rotating sheets (709) is the same as that of the fireproof sand spraying openings (501).
7. The wax pattern sand shower device for wax pattern casting according to claim 5, wherein: the adjusting mechanism comprises a sliding cavity (801), the second mounting rod (707) and the first mounting rod (703) are connected with a connecting part of the connecting rotating shaft (8) and are provided with sliding cavities (801), the sliding cavities (801) are fixedly connected with adjusting screw sleeves (803) close to the top ends of the connecting rotating shaft (8), the upper ends of the connecting rotating shaft (8) are fixedly connected with screw heads (802), the screw heads (802) are located above the adjusting screw sleeves (803), the surface of the connecting rotating shaft (8) is fixedly connected with a fixing ring (804), the fixing ring (804) is located below the adjusting screw sleeves (803), the bottoms of the fixing ring (804) are fixedly connected with reset springs (805), and the reset springs (805) are sleeved on the surfaces of the connecting rotating shaft (8) and are in contact with the bottom surfaces inside the sliding cavities (801).
8. The wax pattern sand shower device for wax pattern casting according to claim 5, wherein: the surface of one side of the rotary piece (709) close to the fireproof sand spraying opening (501) is a horizontal plane.
9. The wax pattern sand shower device for wax pattern casting according to claim 1, wherein: support legs for supporting are fixedly arranged at four corners of the lower surface of the mounting base (1).
10. A wax pattern sand-showering method for wax pattern casting, which is suitable for the wax pattern sand-showering device for wax pattern casting according to any one of claims 1 to 9, and is characterized by comprising the following steps:
s1: spraying fireproof sand in the outer protective sand spraying housing (2) by starting a sand blasting mechanism, and then sending the wax pattern stained with the slurry into the outer protective sand spraying housing (2) for sand spraying;
s2: when sand is sprayed, the auxiliary mechanism is started to spray the fireproof sand from a plurality of angles or direct or sputtered wax patterns towards the middle position;
s3: and taking out the wax mould after the shower is finished, and collecting redundant fireproof sand in a collecting mechanism after passing through a blanking mechanism.
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| CN202310492331.0A CN116372116B (en) | 2023-05-05 | 2023-05-05 | Wax pattern sand spraying device for wax pattern casting and sand spraying method thereof |
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| CN202310492331.0A CN116372116B (en) | 2023-05-05 | 2023-05-05 | Wax pattern sand spraying device for wax pattern casting and sand spraying method thereof |
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| CN116372116B CN116372116B (en) | 2023-11-21 |
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Cited By (1)
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| CN117696839A (en) * | 2024-02-05 | 2024-03-15 | 泰州市志宇机械设备有限公司 | Sand spraying device and method for robot shell making |
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