CN111299508A - Large-scale thin wall precision casting mould shell dewaxing device - Google Patents
Large-scale thin wall precision casting mould shell dewaxing device Download PDFInfo
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- CN111299508A CN111299508A CN202010234241.8A CN202010234241A CN111299508A CN 111299508 A CN111299508 A CN 111299508A CN 202010234241 A CN202010234241 A CN 202010234241A CN 111299508 A CN111299508 A CN 111299508A
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- 238000005495 investment casting Methods 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 98
- 238000001914 filtration Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 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
- B22C9/043—Removing the consumable pattern
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a large-scale thin-wall precision casting mould shell dewaxing device which comprises a first dewaxing cylinder and a second dewaxing cylinder, wherein one side of the bottom end of the first dewaxing cylinder and one side of the bottom end of the second dewaxing cylinder are respectively and fixedly connected with a filtering treatment device, a heating box is fixedly connected between the first dewaxing cylinder and the second dewaxing cylinder, the heating box is fixedly connected with the output end of the heating device, a rotating shaft is arranged in the heating box, one end of the rotating shaft penetrates through the rear side wall of the heating box and fixedly connected with the output end of a motor after penetrating through a fixing plate, and two ends of the fixing plate are respectively and fixedly connected with the first dewaxing cylinder and the second dewaxing cylinder. According to the invention, the rotating shaft is driven by the motor to drive the arc-shaped bump to continuously impact the fixed block back and forth, so that the piston plate can slide back and forth in the heat conduction pipe, the speed of hot air in the heating box flowing into the dewaxing cylinder is increased, the temperature rise speed of the dewaxing cylinder is increased, and the dewaxing efficiency is ensured.
Description
Technical Field
The invention relates to the technical field of mould shell dewaxing, in particular to a mould shell dewaxing device for a large thin-wall precision casting.
Background
The casting is usually obtained by coating several layers of refractory materials on the surface of a wax film, melting the wax film to form a shell after hardening and drying, then roasting, and then casting. The casting obtained by investment casting has higher dimensional accuracy and surface smoothness, so the casting is also called as investment precision casting and belongs to one of the precision casting field.
The existing dewaxing device has long dewaxing time, high energy consumption, incomplete dewaxing and low dewaxing efficiency. Therefore, the dewaxing device for the large thin-wall precision casting mold shell is improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a mould shell dewaxing device for a large thin-wall precision casting.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention relates to a large-scale thin-wall precision casting mould shell dewaxing device which comprises a first dewaxing cylinder and a second dewaxing cylinder, wherein one side of the bottom ends of the first dewaxing cylinder and the second dewaxing cylinder is fixedly connected with a filtering treatment device respectively, a heating box is fixedly connected between the first dewaxing cylinder and the second dewaxing cylinder, the heating box is fixedly connected with the output end of the heating device, a rotating shaft is arranged in the heating box, one end of the rotating shaft penetrates through the rear side wall of the heating box and penetrates through a fixing plate to be fixedly connected with the output end of a motor, two ends of the fixing plate are fixedly connected with the first dewaxing cylinder and the second dewaxing cylinder respectively, the other end of the rotating shaft is rotatably connected with the front inner side wall of the heating box through a bearing, a plurality of sleeves are fixedly sleeved on the rotating shaft, arc-shaped convex blocks are symmetrically and fixedly connected to two sides of the sleeves, heat conduction pipes are arranged at the side ends of the arc-shaped convex blocks, one ends of the The connection, fixed mounting has first check valve on the output tube, heat pipe other end fixedly connected with orifice plate, sliding connection has the piston board in the heat pipe, and the fixed a plurality of inlet ports that are equipped with on the piston board, installs the second check valve in the inlet port, piston board and slide bar fixed connection, the slide bar passes orifice plate and fixed block fixed connection, fixedly connected with compression spring between fixed block and the orifice plate, compression spring cover is on the slide bar, fixed block and arc lug are just to setting up.
Further preferably, membrane shell mounting racks are respectively placed in the first dewaxing cylinder and the second dewaxing cylinder, a triangular inclined block is arranged at the lower end of each mounting rack, guide pipes are respectively and fixedly connected to one sides of the bottom ends of the first dewaxing cylinder and the second dewaxing cylinder, and the lowest end of each triangular inclined block is parallel to the input end of each guide pipe.
Further preferred, pipe output fixedly connected with filtration processing apparatus, filtration processing apparatus includes the work box, from the top down is equipped with coarse strainer, thin filter screen and triangle-shaped fixed block in proper order in the work box, coarse strainer and thin filter screen slope set up in the work box, coarse strainer and thin filter screen slide with the laminating of work box medial surface respectively, the triangle-shaped fixed block is fixed in the work box bottom surface, triangle-shaped fixed block inclined plane is just to thin filter screen setting, wherein a set of relative both sides face is fixed with the sliding plate respectively on coarse strainer and the thin filter screen, the sliding plate wear out the work box lateral wall and with the laminating sliding connection of work box lateral wall.
Further preferably, three discharging pipes are fixed to the side face of the working box from top to bottom, and the three discharging pipes are fixed to the lowest ends of the coarse filter screen, the fine filter screen and the triangular fixing blocks respectively.
Preferably, a positioning plate is fixed on the top surface of the sliding plate, an extension spring is fixed between the positioning plate and the side surface of the working box, the side end of the positioning plate extends beyond the working box and is fixedly connected with a connecting rod, the side end of the connecting rod is fixedly connected with a fixing plate, the side surface of the fixing plate is attached to an elliptical cam, the elliptical cam is fixedly connected with the output end of a motor, the motor is fixedly installed on the working box, and the sliding plate and the positioning plate are processed and manufactured in an integrated mode.
Further preferably, the heating device comprises a control panel, the control panel is in transmission connection with a computer through a communication cable, the control panel is in control transmission connection with a heating box temperature sensor, a first temperature sensor, a second temperature sensor, a solar heating circulating pump, a geothermal circulating pump, a cooling water replenishing pump, an electric heating pipe, a mixed water tank temperature sensor, a heating box constant temperature circulating pump and a plurality of solenoid valves respectively, the input end of the solar heating circulating pump is connected with the first temperature sensor and the solenoid valves, the input end of the geothermal circulating pump is connected with the second temperature sensor and the solenoid valves, the solar heating circulating pump and the geothermal circulating pump are connected with the mixed water tank through a three-way pipe, the input end of the cooling water replenishing pump is connected with a cooling water storage tank and the solenoid valves, the mixed water tank is internally provided with the, the mixed water tank output end is connected with a heating tank constant-temperature circulating pump, the heating tank constant-temperature circulating pump is connected with the heating tank, and a heating tank temperature sensor is arranged in the heating tank.
Preferably, the solar heating circulating pump is connected with the solar water heating device, the geothermal circulating pump is connected with a geothermal water pipe, the control panel is provided with a parameter reading module, and the parameter reading module is in control transmission connection with the alarm module.
Preferably, the motor is fixedly installed on the fixing plate, and the motor is electrically connected with an external power supply.
Preferably, the rotating shaft, the fixing plate, the sleeve, the arc-shaped convex block, the heat conducting pipe, the output pipe, the pore plate, the piston plate, the sliding rod, the fixing block, the compression spring, the second fixing plate, the second arc-shaped convex block, the second sleeve and the threaded rod are made of high-temperature-resistant stainless steel.
Preferably, a sealing ring is arranged at the contact position of the rotating shaft and the rear side wall of the heating box, and the sealing ring is fixedly connected with the rear side wall of the heating box.
The invention has the beneficial effects that:
1. the rotating shaft is driven by the motor to drive the arc-shaped convex blocks to continuously impact the fixed block back and forth, so that the piston plate can slide back and forth in the heat conduction pipe, the speed of hot air in the heating box flowing into the dewaxing cylinder is increased, the temperature rising speed of the dewaxing cylinder is increased, and the dewaxing efficiency is ensured;
2. through the setting of two-layer filter screen of coarse strainer and thin filter screen, the coarse strainer coarse filtration can prevent to block up thin filter screen to make thin filter screen can continuous work, guaranteed work efficiency.
3. In order to prevent because the material to be handled when too concentrated carries the work box in, the material of overstock bottom the filter screen can not be handled completely, the treatment effect descends, so can drive oval cam rotation and extension spring's effort through the motor, make the locating plate can drive the sliding plate and carry out reciprocating sliding, and because coarse strainer and thin filter screen adopt the elasticity filter screen, so when the sliding plate motion, make coarse strainer and thin filter screen stretch and shrink back and forth movement, thereby make the filter screen can vibrate, improve the treatment effect.
4. The controller judges whether the heating box needs to be heated or not or forcibly cools down through the data of the heating box temperature sensor, automatic control is achieved, operation and management of workers are facilitated, meanwhile, the heat source achieves multi-energy complementation, and a large amount of cost resources are effectively saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a dewaxing device for a large thin-wall precision casting mold shell according to the invention;
FIG. 2 is a schematic view of a cross-sectional top view of a dewaxing apparatus for a large thin-walled precision casting mold shell according to the present invention;
FIG. 3 is a schematic view of a part of an enlarged structure of a dewaxing apparatus for a large thin-wall precision casting mold shell of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of a partial side view and cross-sectional structure of a dewaxing device for a large thin-wall precision casting mold shell according to the present invention;
FIG. 5 is a schematic view of a partial three-dimensional structure of a dewaxing device for a large thin-wall precision casting mold shell according to the present invention;
FIG. 6 is a schematic view of a heater control of a dewaxing apparatus for a large thin-walled precision casting mold shell of the present invention.
In the figure: 1. a first dewaxing cylinder; 2. a second dewaxing cylinder; 3. a heating box; 4. a heating device; 5. a filtration processing device; 6. a rotating shaft; 7. a fixing plate; 8. a motor; 9. a sleeve; 10. an arc-shaped bump; 11. a heat conducting pipe; 12. an output pipe; 13. a first check valve; 14. an orifice plate; 15. a piston plate; 16. an air inlet; 17. a second one-way valve; 18. a slide bar; 19. a fixed block; 20. a compression spring; 21. a triangular oblique block; 22. a conduit; 23. a work box; 24. coarse filtration; 25. a fine filter screen; 26. a triangular fixed block; 27. a sliding plate; 28. positioning a plate; 29. an extension spring; 30. a connecting rod; 31. a fixing plate; 32. an elliptical cam.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-6, the invention relates to a dewaxing device for a large-scale thin-wall precision casting mold shell, which comprises a first dewaxing cylinder 1 and a second dewaxing cylinder 2, wherein one side of the bottom ends of the first dewaxing cylinder 1 and the second dewaxing cylinder 2 is respectively and fixedly connected with a filtering treatment device 5, a heating box 3 is fixedly connected between the first dewaxing cylinder 1 and the second dewaxing cylinder 2, the heating box 3 is fixedly connected with the output end of a heating device 4, a rotating shaft 6 is arranged in the heating box 3, one end of the rotating shaft 6 penetrates through the rear side wall of the heating box 3 and penetrates through a fixing plate 7 to be fixedly connected with the output end of a motor 8, two ends of the fixing plate 7 are respectively and fixedly connected with the first dewaxing cylinder 1 and the second dewaxing cylinder 2, the other end of the rotating shaft 6 is rotatably connected with the front inner side wall of the heating box 3 through a bearing, a plurality of sleeves 9 are fixedly sleeved on the rotating shaft 6, and arc-shaped convex blocks, the 10 sides of arc lug are equipped with heat pipe 11, and the one end of a plurality of heat pipes 11 is worn out the 3 lateral walls of heating cabinet respectively and is stretched into in heating device 4 and the filtration processing apparatus 5 and output tube 12 fixed communication connection, fixed mounting has first check valve 13 on the output tube 12, 11 other end fixedly connected with orifice plate 14 of heat pipe, sliding connection has piston plate 15 in the heat pipe 11, and fixed being equipped with a plurality of inlet ports 16 on the piston plate 15, installing second check valve 17 in the inlet port 16, piston plate 15 and slide bar 18 fixed connection, slide bar 18 passes orifice plate 14 and fixed block 19 fixed connection, fixedly connected with compression spring 20 between fixed block 19 and the orifice plate 14, compression spring 20 cover is on slide bar 18, fixed block 19 is just to setting up with arc lug 10.
The membrane shell mounting bracket has been placed respectively in first dewaxing jar 1 and the second dewaxing jar 2, the mounting bracket lower extreme is equipped with triangle sloping block 21, first dewaxing jar 1 and second dewaxing jar 2 bottom one side fixedly connected with pipe 22 respectively, triangle sloping block 21 least significant and pipe 22 input parallel arrangement.
The utility model discloses a pipe 22 output end fixedly connected with filtration processing apparatus 5, filtration processing apparatus 5 includes work box 23, from the top down is equipped with coarse strainer 24, thin filter screen 25 and triangle-shaped fixed block 26 in proper order in the work box 23, coarse strainer 24 and thin filter screen 25 slope set up in work box 23, coarse strainer 24 and thin filter screen 25 slide with the laminating of work box 23 medial surface respectively, triangle-shaped fixed block 26 is fixed in work box 23 bottom surface, triangle-shaped fixed block 26 inclined plane is just setting up thin filter screen 25, wherein a set of relative both sides face is fixed with sliding plate 27 respectively on coarse strainer 24 and the thin filter screen 25, sliding plate 27 wears out 23 lateral walls of work box and laminates sliding connection with 23 lateral walls of work box.
Three discharging pipes are fixed on the side surface of the working box 23 from top to bottom, and the three discharging pipes are respectively fixed at the lowest ends of the coarse filter screen 24, the fine filter screen 25 and the triangular fixing block 26.
A positioning plate 28 is fixed on the top surface of the sliding plate 27, an extension spring 29 is fixed between the positioning plate 28 and the side surface of the working box 23, the side end of the positioning plate 28 extends beyond the working box 23 and is fixedly connected with a connecting rod 30, the side end of the connecting rod 30 is fixedly connected with a fixing plate 31, the side surface of the fixing plate 31 is attached to an elliptical cam 32, the elliptical cam 32 is fixedly connected with the output end of a motor, the motor is fixedly installed on the working box 23, and the sliding plate 27 and the positioning plate 28 are manufactured by integral forming.
The heating device 4 comprises a control panel, the control panel is in transmission connection with a computer through a communication cable, the control panel is respectively in control transmission connection with a heating box temperature sensor, a first temperature sensor, a second temperature sensor, a solar heating circulating pump, a geothermal circulating pump, a cooling water replenishing pump, an electric heating tube, a mixed water tank temperature sensor, a heating box constant temperature circulating pump and a plurality of solenoid valves, the input end of the solar heating circulating pump is connected with the first temperature sensor and the solenoid valves, the input end of the geothermal circulating pump is connected with the second temperature sensor and the solenoid valves, the solar heating circulating pump and the geothermal circulating pump are connected with the mixed water tank through a three-way pipe, the input end of the cold water replenishing pump is connected with a cold water storage tank and the solenoid valves, the electric heating tube and the mixed water tank temperature sensor are arranged in the mixed water, the heating box constant temperature circulating pump is connected with the heating box, and the heating box temperature sensor is arranged in the heating box 3.
The solar heating circulating pump is connected with the solar water heating device, the geothermal circulating pump is connected with a geothermal water pipe, the control panel is provided with a parameter reading module, and the parameter reading module is in control transmission connection with the alarm module.
The motor 8 is fixedly installed on the fixing plate 7, and the motor 8 is electrically connected with an external power supply.
During operation, at first open first dewaxing jar 1 and second dewaxing jar 2, place the mould shell of treating the dewaxing on first dewaxing jar 1 and second dewaxing jar 2 interior mounting bracket, then heating cabinet 3 utilizes heating device 4 to heat up, and motor 8 switches on external power supply and starts.
The motor 8 rotates, the rotating shaft 6 can be rotated, the arc-shaped convex blocks 10 on two sides of the rotating shaft 6 start to rotate, and in the rotating process, the fixed block 19 can be continuously collided back and forth, so that the sliding rod 18 is driven to extrude the piston plate 15 to slide, because the first check valve 13 only can enable hot air of the heat conduction pipe 11 to be exhausted through the output pipe 12, the second check valve 17 only can enable the hot air to enter the heat conduction pipe 11 through the air inlet 16, due to the acting force of the compression spring 20, the piston plate 15 can be continuously and back and forth slid in the heat conduction pipe 11, the hot air in the heating box 3 can be accelerated to rapidly enter the first dewaxing cylinder 1 and the second dewaxing cylinder 2, the temperature in the first dewaxing cylinder 1 and the second dewaxing cylinder 2 can be rapidly increased, rapid heating is ensured, and dewaxing efficiency is improved.
The whole heating device 4 is used specifically as follows: the controller judges whether the heating box needs to be heated or cooled according to the data of the heating box temperature sensor, and the temperature of the heating box is read by using the heating box temperature transmitter; if the temperature needs to be reduced, all the electromagnetic valves and pumps of the heating system are closed, the cold water replenishing pump and the electromagnetic valves are independently opened, cold water in the cold water storage tank is input into the mixed water tank, the mixed water tank is cooled, and then the heating box is cooled through the heating box constant temperature water pump; if heating is needed, firstly, transmitting information to the control panel through the first temperature sensor, judging whether the temperature of the solar heat source can meet the heating requirement of the system, if so, opening the solar heating circulating pump and the electromagnetic valve, heating the mixed water tank solution, and then heating the heating box through the heating box constant temperature water pump; if the temperature of the solar heat source is not enough, the second temperature transmitter is utilized to transmit information to the control panel, whether the temperature of the geothermal heat source meets the requirement of heat supplement is judged, if so, a geothermal circulating pump and an electromagnetic valve are opened to supplement and heat the mixed water tank solution, and then the heating box is heated by a constant temperature water pump of the heating box; if the temperature of the geothermal heat source cannot meet the requirement of heat supplement, the control panel directly controls to start the electric heating pipe to heat the mixed water tank, and then the heating box is heated through the heating box constant-temperature water pump.
And in the process of starting the corresponding circulating pump, the parameter reading module is used for monitoring in real time, the parameter of each circulating pump finds that the running state is abnormal, and the parameter is transmitted to the alarm module to give an alarm, so that the safe use of the whole device is realized.
In dewaxing in-process, the wax liquid that produces passes through the feed liquor pipe and carries work box 23 in, utilizes coarse strainer 24 to carry out the coarse filtration, prevents to block up thin filter screen 25 to make thin filter screen 25 can continuous operation, improved thin filter screen 25 treatment effeciency, prevent that wax liquid from carrying other impurity, influence utilization once more.
Meanwhile, in order to prevent the wax liquid from being excessively concentrated and being conveyed into the working box 23, the wax liquid is accumulated on the filter screen and cannot be completely processed, so that the positioning plate 28 can drive the sliding plate 27 to slide back and forth by driving the elliptical cam 32 to rotate through the motor and the acting force of the extension spring 29, and the coarse filter screen 24 and the fine filter screen 25 adopt elastic filter screens, so that the coarse filter screen 24 and the fine filter screen 25 can be stretched and contracted to run back and forth when the sliding plate 27 moves, and the filter screens can vibrate to improve the processing effect.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The mould shell dewaxing device for the large-scale thin-wall precise casting is characterized by comprising a first dewaxing cylinder (1) and a second dewaxing cylinder (2), wherein one side of the bottom ends of the first dewaxing cylinder (1) and the second dewaxing cylinder (2) is respectively and fixedly connected with a filtering treatment device (5), a heating box (3) is fixedly connected between the first dewaxing cylinder (1) and the second dewaxing cylinder (2), the heating box (3) is fixedly connected with the output end of a heating device (4), a rotating shaft (6) is arranged in the heating box (3), one end of the rotating shaft (6) penetrates through the rear side wall of the heating box (3) and penetrates through a fixing plate (7) to be fixedly connected with the output end of a motor (8), two ends of the fixing plate (7) are respectively and fixedly connected with the first dewaxing cylinder (1) and the second dewaxing cylinder (2), and the other end of the rotating shaft (6) is rotatably connected with the front inner side wall of the heating box (3) through a bearing, the rotary shaft is characterized in that a plurality of sleeves (9) are fixedly sleeved on the rotary shaft (6), arc-shaped convex blocks (10) are symmetrically and fixedly connected with two sides of each sleeve (9), heat conduction pipes (11) are arranged at the side ends of the arc-shaped convex blocks (10), one ends of the heat conduction pipes (11) penetrate through the side wall of the heating box (3) respectively and extend into the heating device (4) and the filtering processing device (5) to be fixedly communicated with the output pipe (12), first check valves (13) are fixedly arranged on the output pipe (12), pore plates (14) are fixedly connected with the other ends of the heat conduction pipes (11), piston plates (15) are slidably connected in the heat conduction pipes (11), a plurality of air inlet holes (16) are fixedly arranged on the piston plates (15), second check valves (17) are arranged in the air inlet holes (16), the piston plates (15) are fixedly connected with sliding rods (18), and the sliding rods (18) penetrate through the pore plates, and a compression spring (20) is fixedly connected between the fixed block (19) and the pore plate (14), the compression spring (20) is sleeved on the sliding rod (18), and the fixed block (19) is arranged opposite to the arc-shaped convex block (10).
2. The mould shell dewaxing device for the large-scale thin-wall precision castings according to claim 1, wherein membrane shell mounting frames are respectively placed in the first dewaxing cylinder (1) and the second dewaxing cylinder (2), a triangular sloping block (21) is arranged at the lower end of each mounting frame, a guide pipe (22) is respectively and fixedly connected to one side of the bottom end of each of the first dewaxing cylinder (1) and the second dewaxing cylinder (2), and the lowest end of each triangular sloping block (21) is parallel to the input end of each guide pipe (22).
3. The mould shell dewaxing device for the large-scale thin-wall precision castings according to claim 2, wherein the output end of the guide pipe (22) is fixedly connected with a filtering treatment device (5), the filtering treatment device (5) comprises a work box (23), a coarse filtering screen (24), a fine filtering screen (25) and a triangular fixing block (26) are sequentially arranged in the work box (23) from top to bottom, the coarse filtering screen (24) and the fine filtering screen (25) are obliquely arranged in the work box (23), the coarse filtering screen (24) and the fine filtering screen (25) are respectively attached to and slide on the inner side surface of the work box (23), the triangular fixing block (26) is fixed on the bottom surface of the work box (23), the inclined surface of the triangular fixing block (26) is just opposite to the fine filtering screen (25), and sliding plates (27) are respectively fixed on one set of two opposite side surfaces of the coarse filtering screen (24) and the fine filtering screen (25), the sliding plate (27) penetrates through the side wall of the working box (23) and is attached to and slidably connected with the side wall of the working box (23).
4. The mould shell dewaxing device for the large-scale thin-wall precise castings according to claim 3, wherein three discharge pipes are fixed on the side surface of the working box (23) from top to small side and are respectively fixed at the lowest ends of the coarse filter screen (24), the fine filter screen (25) and the triangular fixing block (26).
5. The mould shell dewaxing device for the large-scale thin-wall precision castings according to claim 4, wherein a positioning plate (28) is fixed on the top surface of the sliding plate (27), an extension spring (29) is fixed between the positioning plate (28) and the side surface of the working box (23), the side end of the positioning plate (28) extends beyond the working box (23) and is fixedly connected with a connecting rod (30), the side end of the connecting rod (30) is fixedly connected with a fixing plate (31), the side surface of the fixing plate (31) is attached to an elliptical cam (32), the elliptical cam (32) is fixedly connected with the output end of a motor, the motor is fixedly installed on the working box (23), and the sliding plate (27) and the positioning plate (28) are manufactured by integral forming.
6. The mould shell dewaxing device of large-scale thin-wall precision castings according to claim 5, wherein the heating device (4) comprises a control panel, the control panel is in transmission connection with a computer through a communication cable, the control panel is in control transmission connection with a heating box temperature sensor, a first temperature sensor, a second temperature sensor, a solar heating circulating pump, a geothermal circulating pump, a cooling water make-up pump, an electric heating pipe, a mixed water tank temperature sensor, a heating box constant temperature circulating pump and a plurality of electromagnetic valves respectively, the input end of the solar heating circulating pump is connected with the first temperature sensor and the electromagnetic valves, the input end of the geothermal circulating pump is connected with the second temperature sensor and the electromagnetic valves, the solar heating circulating pump and the geothermal circulating pump are connected with the mixed water tank through a three-way pipe, the input end of the cooling water make-up pump is connected with a, the electric heating pipe and the mixed water tank temperature sensor are arranged in the mixed water tank, the output end of the mixed water tank is connected with a heating box constant-temperature circulating pump, the heating box constant-temperature circulating pump is connected with a heating box, and the heating box temperature sensor is arranged in the heating box (3).
7. The mould shell dewaxing device for the large-scale thin-wall precise castings according to claim 6, wherein the solar heating circulating pump is connected with a solar water heating device, the geothermal circulating pump is connected with a geothermal water pipe, the control panel is provided with a parameter reading module, and the parameter reading module is in control transmission connection with the alarm module.
8. The mould shell dewaxing device for the large-scale thin-wall precision castings according to claim 1, wherein the motor (8) is fixedly installed on the fixing plate (7), and the motor (8) is electrically connected with an external power supply.
9. The mould shell dewaxing device for the large-scale thin-wall precision casting according to claim 1, wherein the rotating shaft (6), the fixing plate (7), the sleeve (9), the arc-shaped convex block (10), the heat conducting pipe (11), the output pipe (12), the pore plate (14), the piston plate (15), the sliding rod (18), the fixing block (19), the compression spring (20), the second fixing plate (21), the second arc-shaped convex block (22), the second sleeve (23) and the threaded rod (24) are made of high temperature resistant stainless steel.
10. The mould shell dewaxing device for the large-scale thin-wall precision castings according to claim 1, wherein a sealing ring is arranged at the contact position of the rotating shaft (6) and the rear side wall of the heating box (3), and the sealing ring is fixedly connected with the rear side wall of the heating box (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010234241.8A CN111299508A (en) | 2020-03-30 | 2020-03-30 | Large-scale thin wall precision casting mould shell dewaxing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010234241.8A CN111299508A (en) | 2020-03-30 | 2020-03-30 | Large-scale thin wall precision casting mould shell dewaxing device |
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| CN111299508A true CN111299508A (en) | 2020-06-19 |
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| CN202010234241.8A Pending CN111299508A (en) | 2020-03-30 | 2020-03-30 | Large-scale thin wall precision casting mould shell dewaxing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117718441A (en) * | 2024-02-08 | 2024-03-19 | 江苏永瀚特种合金技术股份有限公司 | Shell cooling device after dewaxing of wax mould |
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