CN117206500A - Low-pressure casting die for fuel injection pump body - Google Patents
Low-pressure casting die for fuel injection pump body Download PDFInfo
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- CN117206500A CN117206500A CN202311464280.7A CN202311464280A CN117206500A CN 117206500 A CN117206500 A CN 117206500A CN 202311464280 A CN202311464280 A CN 202311464280A CN 117206500 A CN117206500 A CN 117206500A
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- Prior art keywords
- wall
- fixedly connected
- casting
- pump body
- injection pump
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- 238000005266 casting Methods 0.000 title claims abstract description 105
- 238000002347 injection Methods 0.000 title claims abstract description 68
- 239000007924 injection Substances 0.000 title claims abstract description 68
- 239000000446 fuel Substances 0.000 title claims description 15
- 239000002184 metal Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 20
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000006096 absorbing agent Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000003064 anti-oxidating effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 238000001802 infusion Methods 0.000 description 7
- 238000010992 reflux Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of mold manufacturing, and particularly relates to a low-pressure casting mold for an oil injection pump body, which comprises a base, wherein an upright post is fixedly connected to the upper surface of the base, a cover plate is fixedly connected to the upper surface of the upright post, a mounting frame is fixedly connected to the lower surface of the cover plate, a through hole is formed in the inner wall of the base, a crucible is fixedly connected to the wall of the through hole, and a through hole is formed in the inner wall of the crucible. The invention can play an anti-oxidation role in the casting process of the oil injection pump body, can effectively reduce the existence of oxygen, thereby preventing or reducing the oxidation reaction of the oil injection pump body, has good heat transfer property, can accelerate the cooling of metal, is beneficial to adjusting the performance of the oil injection pump body, can expel air in a cavity of a die in the casting process, reduces the formation of air holes, avoids influencing the subsequent normal use of the oil injection pump body, and improves the casting effect of the low-pressure die of the oil injection pump body.
Description
Technical Field
The invention belongs to the technical field of mold manufacturing, and particularly relates to a low-pressure casting mold for an oil injection pump body.
Background
The fuel injection pump body is an important part of an engine and is mainly responsible for delivering fuel from a fuel tank to the inside of a combustion chamber of the engine, and the fuel injection pump body needs to be cast at low pressure during casting so as to achieve parts applicable to different shapes and complexity, and the fuel injection pump body can encounter the following problems during low pressure casting:
because the injection pump body mould itself is in semi-closed state, certain atmospheric pressure needs to be exerted when the molten metal is injected into the mould, make the abundant filling mould cavity of molten metal, and the injection pump body after the drawing of patterns probably takes place oxidation reaction with the oxygen in the air, cause the surface of the injection pump body to appear oxidizing, influence the subsequent normal use of the injection pump body, reduced the casting effect of injection pump body low pressure casting, the pouring temperature of the injection pump body needs strict control, the too low temperature can lead to filling incompleteness, and the too high temperature can cause quality problems or mould damage, can not preheat and cool the mould according to actual conditions, need sufficient cooling time before the injection pump body casting solidification simultaneously, premature drawing of patterns can lead to the injection pump body to warp or appear incomplete, and the inside gas pocket and defect can appear in the molten metal when casting, lack vibrations improve the mobility of molten metal and the filling nature of foundry goods, the practicality of this low pressure mould has been reduced.
Therefore, we propose a low pressure casting mold for injection pump body to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems and provides a low-pressure casting die for an oil injection pump body.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides an injection pump body low pressure casting mould, includes the base, the last fixed surface of base is connected with the stand, the last fixed surface of stand is connected with the apron, the lower fixed surface of apron is connected with the installing frame, the through-hole has been seted up to the inner wall of base, and the pore wall fixedly connected with crucible of through-hole, the through-hole has been seted up to the inner wall of crucible, and the through-hole wall fixedly connected with feed liquor pipe of through-hole, the upper surface of crucible is provided with the press, the output of press and the top inner wall fixed intercommunication of crucible, the upper surface fixedly connected with of base two symmetrical first cylinders, the last fixed surface of base is connected with L shape dead lever, the inner wall of installing frame is provided with jetting mechanism, two the common fixedly connected with casting case of output of first cylinder, the inner wall of casting case is provided with preheating mechanism.
In the injection pump body low-pressure casting mold, the injection mechanism comprises a second cylinder fixedly connected with the inner wall of the top end of the mounting frame, the output end of the second cylinder is fixedly connected with a transverse plate, the upper surface of the transverse plate is fixedly connected with two symmetrical L-shaped sliding blocks, the inner wall of the mounting frame is provided with a sliding groove, the inner wall of the sliding groove is in sliding connection with the outer wall of the L-shaped sliding blocks, the lower surface of the cover plate is provided with a touch switch, the lower surface of the transverse plate is fixedly connected with two symmetrical mounting blocks, the inner walls of the two mounting blocks are movably connected with a stamping plate together, the upper surface of the stamping plate is fixedly connected with a plurality of uniformly distributed reset springs, the upper surfaces of the reset springs are fixedly connected with the lower surface of the transverse plate, the outer wall of the stamping plate is fixedly sleeved with a heat resistant sleeve, the upper surface fixedly connected with nitrogen gas jar of L shape dead lever, the outer wall fixedly connected with linking bridge of L shape dead lever, the outer wall of linking bridge is provided with the PLC controller, the through-hole has been seted up to the inner wall of linking bridge, and the size and the assorted of stamping plate of through-hole, the outer wall fixedly connected with backwash pump of linking bridge, the inner wall of nitrogen gas jar is fixed intercommunication respectively has first transfer line and second transfer line, and the other end of first transfer line and second transfer line and the both sides end fixed intercommunication of backwash pump, the outer wall of linking bridge is provided with two symmetrical connecting pipes, two the outer wall of connecting pipe is provided with first solenoid valve and second solenoid valve respectively, two the other end of connecting pipe is fixed intercommunication respectively has and blows gas cap and suction cap.
In the low-pressure casting mold for the fuel injection pump body, the preheating mechanism comprises a casting frame which is arranged on the inner wall of the casting box, the inner wall of the casting frame is provided with a mold main body, a through hole is formed in the lower surface of the mold main body, the hole wall of the through hole is fixedly connected with a conducting pipe, the top end of the conducting pipe is fixedly connected with two symmetrical heat-resistant interfaces, the inner wall of the casting box is provided with the through hole, the hole wall of the through hole is movably connected with a limiting block, the outer walls of the limiting blocks are fixedly connected with a vibration disk jointly, the upper surface of the vibration disk is fixedly connected with a heat insulation plate, the upper surface of the heat insulation plate is fixedly connected with the lower surface of the casting box, the lower surface of the vibration disk is provided with a plurality of uniformly distributed piezoelectric ceramic plates, the bottom end inner wall of the casting box is provided with a current relay, the outer walls of the two sides of the casting frame are respectively provided with a plurality of conducting pieces, the outer walls of the conducting pieces are respectively connected with a semiconductor cooling piece and a semiconductor cooling piece, the outer wall of the semiconductor cooling piece and the inner wall of the semiconductor cooling piece are fixedly connected with a heat-conducting plate, and the heat collector is arranged on the inner wall of the casting box.
In the low-pressure casting mold of the fuel injection pump body, the heat recovery mechanism comprises a heat storage box fixedly connected with the inner wall of the casting box, a through hole is formed in the inner wall of the heat storage box, a heat absorption plate is fixedly connected with the hole wall of the through hole, a plurality of uniformly distributed heat conduction metal rods are fixedly connected with the outer wall of the heat absorption plate, evaporation pipes are arranged on the outer wall of the heat conduction metal rods, two symmetrical condensation assemblies are fixedly connected with the outer wall of the evaporation pipes, a plurality of ventilation holes are formed in the inner wall of the heat storage box, a conductive metal rod is fixedly connected with the outer wall of the heat storage box, and the other end of the conductive metal rod is movably connected with the inner wall of the crucible.
In the low-pressure casting mold for the fuel injection pump body, the second air cylinder, the touch switch, the reflux pump, the first air cylinder and the uniform PLC are electrically connected, and the first electromagnetic valve, the second electromagnetic valve, the piezoelectric ceramic plate, the current relay, the semiconductor refrigerating plate and the semiconductor heating plate are electrically connected with the PLC.
In the low-pressure casting mold for the fuel injection pump body, the upper surface of the crucible is respectively provided with the adsorption box, the deoxidization box, the stabilizing box and the melting box, and the inside of the adsorption box, the deoxidization box, the stabilizing box and the melting box are respectively and fixedly filled with the adsorbent, the deoxidizing agent, the stabilizing agent and the melting agent.
In the low-pressure casting mold of the fuel injection pump body, the outer wall of the base is fixedly sleeved with the silica gel anti-slip pad, the lower surface of the cover plate is fixedly connected with the T-shaped reinforcing plate, and two side ends of the T-shaped reinforcing plate are fixedly connected with the outer walls of the upright post and the L-shaped fixing rod respectively.
In the low-pressure casting mold for the fuel injection pump body, the upper surface of the stamping plate is fixedly connected with a plurality of uniformly distributed reset springs, and the upper surfaces of the reset springs are fixedly connected with the lower surface of the transverse plate.
Compared with the prior art, the low-pressure casting die for the fuel injection pump body has the advantages that:
through the jetting mechanism that sets up, can play the effect of anti-oxidation at the injection pump body casting in-process, can reduce the existence of oxygen effectively, thereby prevent or reduce the oxidation reaction of the injection pump body, and nitrogen gas all has good heat transfer nature, can accelerate the cooling of metal and help adjusting the performance of the injection pump body, the inside air of mould cavity can be driven out to the in-process of casting, reduce the formation of gas pocket, avoid influencing the follow-up normal use of the injection pump body, improved the casting effect of this injection pump body low pressure die.
Through the preheating mechanism who sets up, can provide effectual heat conduction way, can be with heat transmission to casting case and casting frame inside to can reduce thermal dissipation, can monitor and control the inside temperature of mould, help guaranteeing required casting temperature, improve stable vibrations and can promote the flow and the homogeneity of molten metal, improve cast quality and shaping performance.
Through the heat recovery mechanism that sets up, can retrieve partial heat in the heat energy that releases from the casting in-process to can retrieve the heat and condense it, can reduce thermal loss, turn into usable cooling effect with it, can prolong the life of crucible simultaneously, prevent that the resource from causing extravagant.
Drawings
FIG. 1 is a schematic structural view of a low-pressure casting mold for an injection pump body provided by the invention;
FIG. 2 is a schematic structural view of a injection mechanism of a low pressure injection mold of an injection pump body according to the present invention;
FIG. 3 is a schematic view of the structure of the outer part of a connecting frame of a low-pressure casting die of an injection pump body;
fig. 4 is a schematic structural diagram of the inside of a connecting frame of a low-pressure casting mold of an injection pump body according to the present invention;
FIG. 5 is a schematic diagram of a preheating mechanism of a low-pressure casting mold of an injection pump body according to the present invention;
FIG. 6 is a schematic diagram of a heat recovery mechanism of a low pressure casting mold of an injection pump body according to the present invention;
fig. 7 is a schematic structural diagram of a low-pressure casting mold crucible for an injection pump body.
In the figure: 1 base, 2 upright posts, 3 cover plates, 4 mounting frames, 5 crucibles, 6 liquid inlet pipes, 7 blowing mechanisms, 71 second cylinders, 72 transverse plates, 73L-shaped sliding blocks, 74 touch switches, 75 mounting blocks, 76 stamping plates, 78 heat-resistant sleeves, 79 nitrogen tanks, 711 connecting frames, 712PLC controllers 713 reflux pump, 714 first infusion tube, 715 second infusion tube, 716 connecting tube, 717 first electromagnetic valve, 718 second electromagnetic valve, 719 blowing cover, 720 suction cover, 8 preheating mechanism, 81 casting frame, 82 mould main body, 83 conducting tube, 84 heat-resisting interface, 85 limiting block 86 vibration dish, 87 heat insulating board, 88 piezoceramics piece, 89 electric current relay, 811 conduction board, 812 conduction piece, 813 semiconductor refrigeration piece, 814 semiconductor heating board, 815 temperature sensor, 9 heat recovery mechanism, 91 heat containing box, 92 absorber plate, 93 heat conduction metal rod, 94 evaporating pipe, 95 condensation subassembly, 96 conduction metal rod, 10 first cylinder, 101 press machine, 11L shape dead lever, 12 casting box, 13 adsorption box, 14 deoxidization box, 15 stable box, 16 melt box, 17 silica gel slipmat, 18T shape reinforcing plate, 19 reset spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
As shown in fig. 1-7, a low-pressure casting mold for an injection pump body comprises a base 1, wherein the upper surface of the base 1 is fixedly connected with a stand column 2, the upper surface of the stand column 2 is fixedly connected with a cover plate 3, the lower surface of the cover plate 3 is fixedly connected with a mounting frame 4, a through hole is formed in the inner wall of the base 1, the wall of the through hole is fixedly connected with a crucible 5, the outer wall of the base 1 is fixedly sleeved with a silica gel anti-slip pad 17, the lower surface of the cover plate 3 is fixedly connected with a T-shaped reinforcing plate 18, the two side ends of the T-shaped reinforcing plate 18 are respectively and fixedly connected with the outer walls of the stand column 2 and an L-shaped fixing rod 11, the upper surface of the crucible 5 is respectively provided with an adsorption box 13, a deoxidizing box 14, a stabilizing box 15 and a melting box 16, the inside of the adsorption box 13, the deoxidizing agent, the stabilizing agent and the melting box 16 are respectively and fixedly filled in the inside of the crucible 5, the upper surface of the crucible 5 is fixedly connected with a liquid inlet pipe 6, the output end of the pressurizing machine 101 is fixedly communicated with the inner wall of the top end of the crucible 5, the upper surface of the base 1 is fixedly connected with two symmetrical first air cylinders 10, the upper surface of the base 1 is fixedly connected with an L-shaped fixing rod 11, the inner wall of the mounting frame 4 is provided with a blowing mechanism 7, the output ends of the two first air cylinders 10 are fixedly connected with a casting box 12 together, the inner wall of the casting box 12 is provided with a preheating mechanism 8, the blowing mechanism 7 comprises a second air cylinder 71 fixedly connected with the inner wall of the top end of the mounting frame 4, the output end of the second air cylinder 71 is fixedly connected with a transverse plate 72, the upper surface of the transverse plate 72 is fixedly connected with two symmetrical L-shaped sliding blocks 73, the inner wall of the mounting frame 4 is provided with sliding grooves, and the inner walls of the sliding grooves are in sliding connection with the outer walls of the L-shaped sliding blocks 73, the lower surface of the cover plate 3 is provided with a touch switch 74, the lower surface of the transverse plate 72 is fixedly connected with two symmetrical mounting blocks 75, the inner walls of the two mounting blocks 75 are jointly and movably connected with a stamping plate 76, the upper surface of the stamping plate 76 is fixedly connected with a plurality of uniformly distributed reset springs 19, the upper surfaces of the reset springs 19 are fixedly connected with the lower surface of the transverse plate 72, the outer wall of the stamping plate 76 is fixedly sleeved with a heat-resistant sleeve 78, the upper surface of the L-shaped fixing rod 11 is fixedly connected with a nitrogen tank 79, the outer wall of the L-shaped fixing rod 11 is fixedly connected with a connecting frame 711, the outer wall of the connecting frame 711 is provided with a PLC controller, the inner wall of the connecting frame 711 is provided with a through hole 712, the size of the through hole is matched with that of the stamping plate 76, the outer wall of the connecting frame 711 is fixedly connected with a reflux pump 713, the inner wall of the nitrogen tank 79 is fixedly communicated with a first infusion tube 714 and a second infusion tube 715 respectively, the other ends of the first infusion tube 714 and the second infusion tube 715 are fixedly communicated with the two side ends of the reflux pump 713, the outer wall of the connecting frame 711 is provided with two symmetrical connecting tubes 716, the outer walls of the two connecting tubes 716 are respectively provided with a first electromagnetic valve 717 and a second electromagnetic valve 718, the other ends of the two connecting tubes 716 are fixedly communicated with a blowing cover 719 and a suction cover 720 respectively, so that the existence of oxygen can be effectively reduced, the oxidation reaction of an oil injection pump body is prevented or reduced, the nitrogen has good heat transfer property, the second air cylinder 71, the touch switch 74, the reflux pump 713 and the first air cylinder 10 are electrically connected with the uniform PLC 712, the first electromagnetic valve 717, the second electromagnetic valve 718, the piezoelectric ceramic sheet 88, the current relay 89, the semiconductor refrigeration sheet 813 and the semiconductor heating sheet 814 are electrically connected with the PLC 712, the cooling of metal can be accelerated to help to adjust the performance of the oil injection pump body, the air in the cavity of the die can be expelled in the casting process, so that the formation of air holes is reduced, the influence on the subsequent normal use of the oil injection pump body is avoided, and the casting effect of the low-pressure die of the oil injection pump body is improved.
The preheating mechanism 8 comprises a casting frame 81 arranged on the inner wall of the casting box 12, the inner wall of the casting frame 81 is provided with a die main body 82, the lower surface of the die main body 82 is provided with a through hole, the hole wall of the through hole is fixedly connected with a conducting pipe 83, the top end of the conducting pipe 83 is fixedly connected with two symmetrical heat-resisting interfaces 84, the inner wall of the casting box 12 is provided with a through hole, the hole wall of the through hole is movably connected with a limiting block 85, the outer walls of the two limiting blocks 85 are fixedly connected with a vibration disk 86 together, the upper surface of the vibration disk 86 is fixedly connected with a heat insulation board 87, the upper surface of the heat insulation board 87 is fixedly connected with the lower surface of the casting box 12, the lower surface of the vibration disk 86 is provided with a plurality of piezoelectric ceramic plates 88 which are uniformly distributed, the inner wall at the bottom end of the casting box 12 is provided with a current relay 89, the inner walls at the two sides of the casting frame 81 are provided with a conducting plate 811, the outer wall of casting case 12 is provided with semiconductor refrigeration piece 813 and semiconductor heating piece, the outer wall fixedly connected with a plurality of conducting pieces 812 of conducting plate 811, and the outer wall of conducting piece 812 respectively with the outer wall fixed connection of semiconductor refrigeration piece 813 and semiconductor heating board 814, the inner wall of casting frame 81 is provided with temperature sensor 815, the inner wall of casting case 12 is provided with heat recovery mechanism 9, can provide effectual heat conduction way, can be with heat transmission to casting case 12 and casting frame 81 inside, and can reduce the loss of heat, can monitor and control the inside temperature of mould, help guaranteeing required casting temperature, improve stable vibrations and can promote the flow and the homogeneity of molten metal, improve quality and the shaping performance of casting.
The heat recovery mechanism 9 includes the heat containing box 91 with casting case 12 inner wall fixed connection, the through-hole has been seted up to the inner wall of heat containing box 91, and the pore wall fixedly connected with absorber plate 92 of through-hole, the outer wall fixedly connected with of absorber plate 92 a plurality of evenly distributed heat conduction metal bars 93, the outer wall of a plurality of heat conduction metal bars 93 all is provided with evaporating pipe 94, the outer wall fixedly connected with of evaporating pipe 94 two symmetrical condensation subassembly 95, a plurality of air vents have been seted up to the inner wall of heat containing box 91, the outer wall fixedly connected with conduction metal bar 96 of heat containing box 91, the other end and the inner wall swing joint of crucible 5 of conduction metal bar 96, can retrieve partial heat in the heat energy that releases from the casting process, and can retrieve the heat and condense it, can reduce thermal loss, turn it into usable cooling effect, can prolong the life of crucible 5 simultaneously, prevent that the resource from causing extravagant.
The principle of operation of the present invention will now be described as follows: firstly, a worker feeds molten metal required for casting into the crucible 5 from the inside of the liquid inlet pipe 6, then a required oil injection pump body die is placed in the casting frame 81, two first air cylinders 10 are started through a PLC (programmable logic controller) 712, the output ends of the two first air cylinders 10 drive a casting box 12 to move downwards, the bottom end of a conducting pipe 83 extends to the inside of the crucible 5, a pressurizing machine 101 is started, the pressurizing machine 101 applies pressure to the inside of the crucible 5, the molten metal in the crucible 5 is influenced by pressure and gravity, the molten metal flows back into the die body 82 from the inside of the conducting pipe 83, meanwhile, a semiconductor heating plate starts to operate, heat is released into the casting box 12 through a conducting sheet 812 and a conducting sheet 811, the die body 82 is further preheated, the first air cylinders 10 are started, the first air cylinders 10 drive a transverse plate 72 and a stamping plate 76 to move downwards, the lower surface of the stamping plate 76 is tightly adhered to the upper surface of the casting frame 81, the top of the molten metal is slowly solidified after the molten metal is separated from the crucible 5 until the molten metal is gradually formed in the die main body 82, then the two second air cylinders 71 are started, the conducting pipe 83 is separated from the crucible 5, meanwhile, the first air cylinder 10 is upwards retracted, the two L-shaped sliding blocks 73 are contacted with the touch switch 74, further, the touch switch 74 transmits instructions to the PLC 712, the instructions are controlled by the touch switch to start vibrating the vibrating disc 86 and start refrigerating the semiconductor refrigerating plate, the acting force generated by the vibrating disc 86 on the piezoelectric ceramic plates 88 is controlled by the acting force, the currents are started to be released by the piezoelectric ceramic plates 88, the released currents are amplified by the current relay 89, the first electromagnetic valve 717 is started by the current relay 89, the nitrogen in the nitrogen tank 79 is started to work from the first infusion pipe 714 and the air blowing cover 719 by the reflux pump 713, and nitrogen can be blown to the die after casting is finished, can play the effect of anti-oxidation in the injection pump body casting process, can reduce the existence of oxygen effectively, thereby prevent or reduce the oxidation reaction of the injection pump body, and nitrogen gas all has good heat transfer nature, can accelerate the cooling of metal and help adjusting the performance of the injection pump body, the inside air of mould cavity can be driven out to the in-process of casting, reduce the formation of gas pocket, avoid influencing the follow-up normal use of the injection pump body, the casting effect of this injection pump body low pressure mould has been improved, the stop work of vibration dish 86 after the nitrogen injection is accomplished, piezoceramics piece 88 stops releasing the electric current, and then control second solenoid valve 718, make second solenoid valve 718 drive second transfer line 715 retrieve unnecessary nitrogen gas through suction hood 720, prevent the resource from causing the waste, the injection pump body is retrieved by the staff after the low pressure casting is accomplished, can provide effective heat conduction way, can be with the heat transmission to casting case 12 and casting frame 81 inside, and can reduce the loss of heat, can monitor and control the inside temperature of mould, help guaranteeing required casting temperature, improve stable can promote the quality of casting liquid and the quality of metal flow and uniformity of casting and shaping quality.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides an injection pump body low pressure casting mould, includes base (1), its characterized in that, the upper surface fixedly connected with stand (2) of base (1), the upper surface fixedly connected with apron (3) of stand (2), the lower surface fixedly connected with installing frame (4) of apron (3), the through-hole has been seted up to the inner wall of base (1), and the pore wall fixedly connected with crucible (5) of through-hole, the through-hole has been seted up to the inner wall of crucible (5), and through-hole wall fixedly connected with feed liquor pipe (6), the upper surface of crucible (5) is provided with press (101), the output of press (101) and the top inner wall fixed intercommunication of crucible (5), the upper surface fixedly connected with of base (1) two symmetrical first cylinders (10), the upper surface fixedly connected with L shape dead lever (11) of base (1), the inner wall of installing frame (4) is provided with jetting mechanism (7), two the output of first cylinder (10) is fixedly connected with feed liquor pipe (6), the casting case (12) jointly, casting case (8) have preheating mechanism (12).
2. The injection pump body low-pressure casting mold according to claim 1, wherein the injection mechanism (7) comprises a second cylinder (71) fixedly connected with the inner wall of the top end of the mounting frame (4), the output end of the second cylinder (71) is fixedly connected with a diaphragm (72), the upper surface of the diaphragm (72) is fixedly connected with two symmetrical L-shaped sliding blocks (73), the inner wall of the mounting frame (4) is provided with a sliding groove, the inner wall of the sliding groove is in sliding connection with the outer wall of the L-shaped sliding blocks (73), the lower surface of the cover plate (3) is provided with a touch switch (74), the lower surface of the diaphragm (72) is fixedly connected with two symmetrical mounting blocks (75), the inner walls of the two mounting blocks (75) are jointly movably connected with a stamping plate (76), the upper surface of the stamping plate (76) is fixedly connected with a plurality of uniformly distributed reset springs (19), the upper surfaces of the reset springs (19) are fixedly connected with the lower surface of the diaphragm (72), the outer wall of the stamping plate (4) is fixedly connected with the outer wall of the L-shaped sliding block (73), the outer wall (711) is fixedly connected with a nitrogen gas channel (11), the outer wall (711) is fixedly connected with a control rod (11), and the size of through hole and the phase-match of punching press board (76), the outer wall fixedly connected with backwash pump (713) of connecting frame (711), the inner wall of nitrogen gas jar (79) is fixed intercommunication respectively has first transfer line (714) and second transfer line (715), and the other end of first transfer line (714) and second transfer line (715) is fixed intercommunication with the both sides end of backwash pump (713), the outer wall of connecting frame (711) is provided with two symmetrical connecting pipes (716), two the outer wall of connecting pipe (716) is provided with first solenoid valve (717) and second solenoid valve (718) respectively, two the other end of connecting pipe (716) is fixed intercommunication respectively and is had blowing cover (719) and suction cover (720).
3. The injection pump body low-pressure casting mold according to claim 1, wherein the preheating mechanism (8) comprises a casting frame (81) arranged on the inner wall of the casting box (12), the inner wall of the casting frame (81) is provided with a mold main body (82), a through hole is formed in the lower surface of the mold main body (82), a conducting tube (83) is fixedly connected with the hole wall of the through hole, the top end of the conducting tube (83) is fixedly connected with two symmetrical heat-resistant interfaces (84), the inner wall of the casting box (12) is provided with a through hole, the hole wall of the through hole is movably connected with a limiting block (85), the outer walls of the two limiting blocks (85) are fixedly connected with a vibration disc (86), the upper surface of the vibration disc (86) is fixedly connected with a heat insulation plate (87), the upper surface of the heat insulation plate (87) is fixedly connected with the lower surface of the casting box (12), a plurality of uniformly distributed piezoelectric ceramic pieces (88) are arranged on the lower surface of the vibration disc (86), the bottom end of the casting box (12) is provided with a current relay (89), the inner wall of the conducting tube (81) is movably connected with a plurality of heat-resistant plates (811) and the heat-conducting plates (811) are fixedly connected with the heat-conducting plates (811), and the outer wall of conducting strip (812) is fixed connection with the outer wall of semiconductor refrigeration piece (813) and semiconductor heating board (814) respectively, the inner wall of casting frame (81) is provided with temperature sensor (815), the inner wall of casting case (12) is provided with heat recovery mechanism (9).
4. The injection pump body low-pressure casting die according to claim 3, characterized in that, heat recovery mechanism (9) include with casting case (12) inner wall fixed connection's heat containing box (91), through-hole has been seted up to the inner wall of heat containing box (91), and the pore wall fixedly connected with absorber plate (92) of through-hole, the outer wall fixedly connected with of absorber plate (92) a plurality of evenly distributed heat conduction metal rod (93), a plurality of the outer wall of heat conduction metal rod (93) all is provided with evaporating pipe (94), the outer wall fixedly connected with two symmetrical condensation subassembly (95) of evaporating pipe (94), a plurality of air vents have been seted up to the inner wall of heat containing box (91), the outer wall fixedly connected with conduction metal rod (96) of heat containing box (91), the other end of conduction metal rod (96) and the inner wall swing joint of crucible (5).
5. The injection pump body low-pressure casting mold according to claim 3, wherein the second cylinder (71), the touch switch (74), the return pump (713), the first cylinder (10) and the uniform PLC controller (712) are electrically connected, and the first solenoid valve (717), the second solenoid valve (718), the piezoelectric ceramic plate (88), the current relay (89), the semiconductor refrigerating plate (813) and the semiconductor heating plate (814) are electrically connected to the PLC controller (712).
6. The injection pump body low-pressure casting die according to claim 1, wherein an adsorption box (13), a deoxidizing box (14), a stabilizing box (15) and a melting box (16) are respectively arranged on the upper surface of the crucible (5), and the inside of the adsorption box (13), the deoxidizing box (14), the stabilizing box (15) and the melting box (16) is respectively fixedly filled with an adsorbent, a deoxidizing agent, a stabilizing agent and a melting agent.
7. The low-pressure casting die for the fuel injection pump body according to claim 2, wherein a silica gel anti-slip pad (17) is fixedly sleeved on the outer wall of the base (1), a T-shaped reinforcing plate (18) is fixedly connected to the lower surface of the cover plate (3), and two side ends of the T-shaped reinforcing plate (18) are fixedly connected with the outer walls of the upright post (2) and the L-shaped fixing rod (11) respectively.
8. The low-pressure casting die for the fuel injection pump body according to claim 2, wherein a plurality of uniformly distributed return springs (19) are fixedly connected to the upper surface of the stamping plate (76), and the upper surfaces of the plurality of return springs (19) are fixedly connected to the lower surface of the transverse plate (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311464280.7A CN117206500A (en) | 2023-11-06 | 2023-11-06 | Low-pressure casting die for fuel injection pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311464280.7A CN117206500A (en) | 2023-11-06 | 2023-11-06 | Low-pressure casting die for fuel injection pump body |
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|---|---|
| CN117206500A true CN117206500A (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311464280.7A Pending CN117206500A (en) | 2023-11-06 | 2023-11-06 | Low-pressure casting die for fuel injection pump body |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497118A (en) * | 2008-02-02 | 2009-08-05 | 沈阳铸造研究所 | Low-pressure casting method and equipment thereof |
| CN104028729A (en) * | 2014-05-09 | 2014-09-10 | 西北工业大学 | Vacuum low-pressure casting forming device for titanium alloy component |
| CN207138823U (en) * | 2017-09-14 | 2018-03-27 | 中信戴卡股份有限公司 | A kind of device for low pressure casting aluminum alloy wheel hub |
| CN113199008A (en) * | 2021-05-18 | 2021-08-03 | 重庆大学 | Vacuum low-pressure casting device and method for large aluminum and magnesium alloy castings |
| CN114101633A (en) * | 2021-12-01 | 2022-03-01 | 兰溪市浩泰机械有限公司 | Low-pressure casting equipment and casting processing technology thereof |
-
2023
- 2023-11-06 CN CN202311464280.7A patent/CN117206500A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497118A (en) * | 2008-02-02 | 2009-08-05 | 沈阳铸造研究所 | Low-pressure casting method and equipment thereof |
| CN104028729A (en) * | 2014-05-09 | 2014-09-10 | 西北工业大学 | Vacuum low-pressure casting forming device for titanium alloy component |
| CN207138823U (en) * | 2017-09-14 | 2018-03-27 | 中信戴卡股份有限公司 | A kind of device for low pressure casting aluminum alloy wheel hub |
| CN113199008A (en) * | 2021-05-18 | 2021-08-03 | 重庆大学 | Vacuum low-pressure casting device and method for large aluminum and magnesium alloy castings |
| CN114101633A (en) * | 2021-12-01 | 2022-03-01 | 兰溪市浩泰机械有限公司 | Low-pressure casting equipment and casting processing technology thereof |
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Application publication date: 20231212 |