CN112815309A - Mold preheating device and system and mold preheating method - Google Patents
Mold preheating device and system and mold preheating method Download PDFInfo
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- CN112815309A CN112815309A CN202011644458.2A CN202011644458A CN112815309A CN 112815309 A CN112815309 A CN 112815309A CN 202011644458 A CN202011644458 A CN 202011644458A CN 112815309 A CN112815309 A CN 112815309A
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- mold preheating
- radiation
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 58
- 230000005855 radiation Effects 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims description 51
- 230000005540 biological transmission Effects 0.000 claims description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 19
- 239000003345 natural gas Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/12—Radiant burners
- F23D14/14—Radiant burners using screens or perforated plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/007—Mixing tubes, air supply regulation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The application provides a mold preheating device, a mold preheating system and a mold preheating method, and relates to the technical field of mold preheating. The mold preheating device comprises a porous medium burner, a driving mechanism and a supporting piece; the porous medium combustor is provided with at least one porous medium combustion chamber, and each porous medium combustion chamber is provided with a radiation surface; the driving mechanism is configured to drive the porous medium burner to rotate; the porous medium burner is rotatably connected with the supporting piece, and the driving mechanism is fixed on the supporting piece. The mould preheating device of this application embodiment can improve and preheat inhomogeneous problem to the mould among the prior art, and can be applicable to the mould that the locating position is different and preheat.
Description
Technical Field
The application relates to the technical field of mold preheating, in particular to a mold preheating device, a mold preheating system and a mold preheating method.
Background
In order to protect the mold and improve the efficiency of use of the mold, it is necessary to maintain the mold at a temperature range as high as possible. If the mold is not preheated, on one hand, the defects of difficult molding, film sticking, casting cracks and the like are easily caused due to low temperature of the mold, and on the other hand, the mold is easily damaged due to too large temperature change of the mold and large cold and hot stress, and the mold can be cracked under severe conditions.
Among the prior art, there is the mode of preheating the mould through the handheld flame spray gun of staff, but this kind of preheating mode is because the flame face is little, needs the staff to remove and heats whole mould profile, and mould cavity partly preheats after preheating partly earlier, can cause to preheat unevenly, and the temperature of flame is different inside and outside, also causes easily to preheat unevenly.
Disclosure of Invention
The embodiment of the application provides a mold preheating device, a mold preheating system and a mold preheating method, which can solve the problem of uneven mold preheating in the prior art, and can be suitable for preheating molds with different placing positions.
The embodiment of the application is realized as follows:
in a first aspect, an example of the present application provides a mold preheating device, including: the porous medium burner, the driving mechanism and the support piece;
the porous medium combustor is provided with at least one porous medium combustion chamber, and each porous medium combustion chamber is provided with a radiation surface;
the driving mechanism is configured to drive the porous medium burner to rotate; the porous medium burner is rotatably connected with the supporting piece, and the driving mechanism is fixed on the supporting piece.
In above-mentioned technical scheme, porous medium has in the porous medium combustor, and porous medium burning makes the porous medium combustor have the heat transfer mode of heat conduction and radiation, and the heat of the high temperature flue gas of porous medium combustion chamber can radiate the pair mould at the radiating surface and heat, compares in the mode of flame heating, and the heating surface is wider, heats the region that the radiating surface can radiate simultaneously, has improved the inhomogeneous problem of flame heating. In addition, the driving mechanism can drive the porous medium burner to rotate, so that the position of the radiation surface can be changed, the porous medium burner is driven to rotate by the driving mechanism, preheating can be carried out in different areas, the mold cavity can be better heated, and the porous medium burner can be suitable for heating the mold cavities in different placement positions.
In a possible embodiment, the porous medium combustion chambers are arranged on opposite sides of the porous medium burner, and the radiation surfaces are arranged on the surfaces of the porous medium combustion chambers which are arranged opposite to each other and are far away from each other.
In above-mentioned technical scheme, the radiating surface sets up in the one side of keeping away from each other of the porous medium combustion chamber that sets up relatively, and the heat radiation region of the radiating surface that sets up relatively is not overlapped basically, has increased the heat radiation region for heat transfer's scope is wider, improves the mould and preheats the effect.
In a possible embodiment, the mold preheating device further comprises a radiation heating element, which is arranged around at least one radiation surface.
In above-mentioned technical scheme, the radiation heating member sets up around the radiant surface of porous medium combustion chamber, and on the one hand, the radiation heating member can guide the flow direction of high temperature flue gas, and on the other hand, the radiation heating member after the heating can radiate the heat and preheat the mould for heating range is great.
In one possible embodiment, the radiant heating element is arranged around the radiant surface and forms an annular cylinder.
In above-mentioned technical scheme, radiation heating member encircles the radiation face and sets up the heat radiation scope that makes the radiation heating member after the heating wider, and the mould preheats the effect better.
In a second aspect, an embodiment of the present application provides a mold preheating system, where the mold preheating system includes a premixed combustion system for premixing natural gas and combustion-supporting gas, and a mold preheating device according to the embodiment of the first aspect, and an air outlet end of the premixed combustion system is communicated with a porous medium combustion chamber of a porous medium combustor.
In above-mentioned technical scheme, can obtain the mist through premixing combustion system and supply to the porous medium combustion chamber and form high temperature flue gas at the combustion of porous medium combustion chamber, the heat of high temperature flue gas can preheat the mould through heat radiation, and the radiation heating spare guides the high temperature flue gas to the different positions of mould die cavity for the heating range is great, and is better to the preheating effect of mould.
In a possible embodiment, the mold preheating device further comprises a lifting mechanism in transmission connection with the support, and the lifting mechanism is configured to drive the mold preheating device to lift.
In the technical scheme, the lifting mechanism drives the mould preheating device to lift, so that moulds at different positions can be conveniently preheated.
In a possible embodiment, the lifting mechanism comprises a connecting piece, a power transmission piece and a driving part, wherein the connecting piece is connected with the supporting piece and is in transmission connection with the power transmission piece, and the power transmission piece is in transmission connection with the power output end of the driving part; the driving component can drive the power transmission piece to rotate and convert the power transmission piece into the linear motion of the connecting piece.
In above-mentioned technical scheme, drive unit can drive power transmission piece and rotate and change the linear motion of connecting piece into, and then makes mould preheating device go up and down thereupon, and the drive mode is simple, can conveniently preheat the mould of different positions.
In a possible embodiment, the driving part includes a limiting part and a driving part, the power transmission part is a lead screw, the driving part is in transmission connection with the lead screw, the lead screw is in threaded connection with the connecting part, and the limiting part is slidably connected with the connecting part and can limit the connecting part from rotating.
In the technical scheme, the screw rod is driven to rotate by the driving piece, and the connecting piece is limited by the limiting piece to rotate, so that the connecting piece in threaded connection with the screw rod can reciprocate along the axial straight line of the screw rod when the screw rod rotates, the lifting of the die preheating device is realized, and the positioning precision is high.
In a third aspect, an embodiment of the present application provides a mold preheating method, which mainly uses the mold preheating system in the embodiment of the second aspect to preheat a mold cavity, and includes:
the porous medium combustor is arranged between the mold cavities, the driving mechanism drives the porous medium combustor to rotate so that the radiation surface rotates to a target position, the premixed combustion system is used for mixing combustion-supporting gas and natural gas to obtain mixed gas, the mixed gas is conveyed into the porous medium combustion chamber and ignited, and the porous medium in the porous medium combustion chamber radiates heat to preheat the mold cavities.
In above-mentioned technical scheme, the heat of the high temperature flue gas of porous medium combustion chamber can radiate the mould at the radiating surface and heat, and the heating surface is wider, heats the region that the radiating surface can radiate simultaneously, has improved the inhomogeneous problem of flame heating. The porous medium burner is driven by the driving mechanism to rotate, so that preheating can be performed in different areas, the mold cavity can be better heated, and the porous medium burner can be suitable for heating the mold cavities at different placing positions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a mold preheating device according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a premixed combustion system of an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a mold preheating device in a first view according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a mold preheating device in a second perspective of the present application;
fig. 5 is a schematic structural diagram of a mold preheating device in a third view according to an embodiment of the present application.
Icon: 100-a mold preheating system; 10-a mold preheating device; 11-a porous medium burner; 111-a porous medium combustion chamber; 112-a radiating plane; 12-a radiant heating element; 20-a premixed combustion system; 21-a fan; 22-air pipe; 23-a gas supply tube; 231-a pressure reducing valve; 232-a filter; 233-electromagnetic valve; 234-proportional valve; 30-a lifting mechanism; 311-a connector; 312-a support; 321-a lead screw; 322-a stop; 323-a drive member; 40-a chassis; 41-road wheels.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be noted that the terms "vertical", "horizontal", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, are only used for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, the mold preheating device 10 includes a porous medium burner 11, a driving mechanism, and a supporting member 312.
The porous medium burner 11 has at least one porous medium combustion chamber 111, each porous medium combustion chamber 111 having a radiation surface 112. Illustratively, one, two, or three porous medium combustion chambers 111 may be provided. The porous medium burner 11 is provided with a porous ceramic medium which has a heat exchange mode of heat conduction and radiation. The heat of the high temperature flue gas of porous medium combustion chamber 111 can radiate away from radiant surface 112, compares in the mode of flame heating, and the heating surface is wider, heats the region that radiant surface 112 can radiate simultaneously, has improved the inhomogeneous problem of flame heating.
The driving mechanism is configured to drive the porous medium burner 11 to rotate; the porous medium burner 11 is rotatably connected to a support 312, and the driving mechanism is fixed to the support 312.
In addition, the position of the radiation surface 112 can be changed because the driving mechanism can drive the porous medium burner 11 to rotate, and the porous medium burner 11 can be driven by the driving mechanism to rotate to preheat in different areas, so that the mold cavity can be better heated, and the porous medium burner can be suitable for heating the mold cavities in different placement positions.
Illustratively, the power take-off of the drive mechanism is connected to the housing of the porous medium burner 11 by a connecting shaft, which is rotatably supported on the support 312 and which is arranged transversely (see fig. 1). The connecting shaft is transversely disposed so that the porous medium burner 11 can rotate in the vertical direction. It will be appreciated that the axis of rotation may also be arranged vertically. Wherein, the driving mechanism is optionally a motor or a combination of the motor and a speed reducer.
Optionally, the mold preheating device 10 further includes the radiation heating members 12, and the radiation heating members 12 are disposed around at least one of the radiation surfaces 112, that is, the radiation heating members 12 may be disposed around a part of the radiation surfaces 112 of all the radiation surfaces 112, or the radiation heating members 12 may be disposed around all the radiation surfaces 112.
Set up radiation heating element 12 around the radiant surface 112, on the one hand, radiation heating element 12 can guide the flow direction of high temperature flue gas, and on the other hand, radiation heating element 12 after the heating can radiate the heat and preheat the mould, and the mode that the mould was preheated to the heat that radiates through radiation heating element 12 through the heat that radiation heating element 12 guide the flow direction of high temperature flue gas and radiated out the heat through radiation heating element 12 combines with the mode that the mould was preheated to the heat that radiates out through radiant surface 112, has increased the heating region of non-radiant surface for heating range is great. The radiant heating element 12 is illustratively made of a high temperature resistant metal, and the shape of the radiant heating element 12 can be designed and adjusted according to the shape of the mold cavity.
Alternatively, the radiation heating element 12 is disposed around the radiation surface 112 and forms an annular cylinder shape, for example, a square shape or a circular shape, and the specific surrounding manner can be adjusted according to the shape of the mold. It is understood that in other embodiments, the radiant heating member 12 may be composed of a plurality of radiant panels arranged at intervals. Compare in the scheme that a plurality of radiation plate intervals set up, radiation heating member 12 encircles radiation surface 112 and sets up the heat radiation scope that makes radiation heating member 12 after the heating wider, and the mould preheats the effect better.
In a possible embodiment, when two porous medium combustion chambers 111 are provided, the two porous medium combustion chambers 111 are provided on opposite sides of the porous medium burner 11, and the radiation surface 112 is provided on the surfaces of the porous medium combustion chambers 111 that are located opposite to each other.
The radiant surface 112 is arranged on the surface, far away from each other, of the porous medium combustion chamber 111 which is arranged oppositely, and the heat radiation areas of the radiant surface 112 which are arranged oppositely are basically not overlapped, so that the heat radiation areas are increased, the heat transfer range is wider, and the preheating effect of the mold is improved.
The embodiment of the present application further provides a mold preheating system 100, the mold preheating system 100 includes a premixed combustion system 20 (refer to fig. 2) for premixing natural gas and combustion-supporting gas, and the mold preheating device 10 according to the embodiment of the present application, and an air outlet end of the premixed combustion system 20 is communicated with the porous medium combustion chamber 111 of the porous medium burner 11.
Illustratively, the premixed combustion system 20 includes a blower 21, an air duct 22, and an air supply duct 23, one end of the air supply duct 23 is used for communicating with a natural gas supply device, and the other end is communicated with the air duct 22. Two ends of the air pipe 22 are respectively communicated with the air outlet of the fan 21 and the porous medium combustion chamber 111, and the air supply pipe 23 is sequentially provided with a pressure reducing valve 231, a filter 232, an electromagnetic valve 233 and a proportional valve 234. The natural gas can be mixed with the air blown out by the fan 21 through the pressure reducing valve 231, the filter 232, the electromagnetic valve 233 and the proportional valve 234 in sequence to form mixed gas in the air pipe 22 and blown into the porous medium combustion chamber 111 through the fan 21.
Can obtain the mist through premixing combustion system 20 and supply to porous medium combustion chamber 111 and form the high temperature flue gas at porous medium combustion chamber 111 burning, the heat of high temperature flue gas can preheat the mould through the heat radiation, and radiation heating spare 12 guides the high temperature flue gas to the different positions of mould die cavity for the heating range is great, and is better to the preheating effect of mould.
Referring to fig. 3-5, in one possible embodiment, the mold preheating system 100 further includes a lifting mechanism 30 drivingly connected to the support 312, the lifting mechanism 30 being configured to drive the mold preheating device 10 up and down.
The lifting mechanism 30 drives the mold preheating device 10 to lift, so that the molds at different positions can be conveniently preheated.
Illustratively, the lifting mechanism 30 includes a connecting member 311, a power transmission member and a driving member, the connecting member 311 is connected with the supporting member 312 and is in transmission connection with the power transmission member, and the power transmission member is in transmission connection with a power output end of the driving member; the driving member can drive the power transmission member to rotate and convert into the linear motion of the connection member 311.
The driving part drives the connecting part 311 to ascend and descend, so that the mold preheating device 10 ascends and descends along with the driving part, the driving mode is simple, and the molds at different positions can be conveniently preheated.
Optionally, the driving component includes a limiting component 322 and a driving component 323, the power transmission component is a lead screw 321, the driving component 323 is in transmission connection with the lead screw 321, the lead screw 321 is in threaded connection with the connecting component 311, and the limiting component 322 is slidably connected with the connecting component 311 and can limit the connecting component 311 to rotate. The driving motor is mounted on the limiting member 322. Illustratively, the drive 323 is an electric motor.
The driving part 323 drives the screw rod 321 to rotate, and the limiting part 322 limits the connecting part 311, so that the connecting part 311 in threaded connection with the screw rod 321 can linearly reciprocate along the axial direction of the screw rod 321 when the screw rod 321 rotates, thereby realizing the lifting of the mold preheating device 10 and having higher positioning accuracy.
Illustratively, the limiting member 322 has a vertically arranged sliding slot, and the connecting member 311 has a sliding portion slidably engaged with the sliding slot. The sliding portion is slidably engaged with the sliding groove, so that the connecting member 311 can move relatively smoothly when ascending and descending. It should be noted that, in other embodiments, grooves may be disposed at two ends of the connecting member 311, the limiting member 322 has a protrusion engaged with the groove, and the protrusion and the groove are slidably engaged, so that the connecting member 311 can move relatively smoothly during lifting.
In other embodiments, the power transmission member may be configured as a gear, the connecting member is configured as a rack, and the driving member drives the gear to rotate, so that the rotation of the gear is converted into the linear motion of the rack, thereby driving the lifting of the mold preheating device 10.
In addition, in a possible embodiment, the mold preheating system 100 further includes a chassis 40, the bottom of the chassis 40 is provided with a traveling wheel 41, and the limiting member 322 is fixed to the chassis 40. Such a structure allows the mold preheating system 100 to be moved conveniently and used flexibly.
The embodiment of the present application further provides a mold preheating method, which mainly preheats a mold cavity by using the mold preheating system 100 of the embodiment of the present application, and the method includes:
the porous medium combustor 11 is placed between mold cavities, the driving mechanism drives the porous medium combustor 11 to rotate so that the radiation surface 112 rotates to a target position, the premixed combustion system 20 is used for mixing combustion-supporting gas and natural gas to obtain mixed gas, the mixed gas is conveyed into the porous medium combustion chamber 111 and ignited, and the porous medium in the porous medium combustion chamber 111 radiates heat to preheat the mold cavities.
Further, when the device is used, the die-casting machine is operated to open the die cavities to a required distance, then the die preheating system 100 is moved to a target position, the lifting mechanism 30 is used for driving the die preheating device 10 to lift between the two die cavities, the driving mechanism is used for driving the die preheating device 10 to rotate so that the radiation surface 112 is opposite to the die cavities, the premixed combustion system 20 is started to mix natural gas and combustion-supporting gas to obtain mixed gas, the mixed gas is conveyed to the porous medium combustion chamber 111, the ignition controller of the porous medium preheater ignites, and when the flame of the porous medium combustion chamber 111 is changed into a uniform infrared state from the combustion state of the radiation surface 112, the ignition process is finished; the frequency of the fan 21 is adjusted to increase the air volume, the proportional valve 234 increases the natural gas flow to achieve a stable air-fuel ratio, and the power of the porous medium burner 11 is the working state power. The porous medium burner 11 heats the surface of the mold cavity, when the temperature of the mold reaches the required temperature, the mold preheating device 10 is driven to move away, the gas electromagnetic valve 233 is closed, the post-blowing stage is started, when the temperature of the porous medium burner 11 is reduced to be lower than 100 ℃, the fan 21 is stopped, and one working cycle is finished.
The heat of the high temperature flue gas of porous medium combustion chamber 111 can radiate the mould at radiant surface 112 and heat, and the heating surface is wider, heats the region that radiant surface 112 can radiate simultaneously, has improved the inhomogeneous problem of flame heating. The porous medium burner 11 is driven by the driving mechanism to rotate, so that preheating can be performed in different areas, the mold cavities can be better heated, and the porous medium burner can be suitable for heating the mold cavities at different placing positions.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A mold preheating device, comprising:
a porous medium burner having at least one porous medium combustion chamber, each porous medium combustion chamber having a radiant face;
a drive mechanism configured to drive rotation of the porous medium burner; and
the porous medium burner is rotatably connected with the supporting piece, and the driving mechanism is fixed on the supporting piece.
2. The mold preheating apparatus according to claim 1, wherein the porous medium combustion chambers are provided on opposite sides of the porous medium burner, and the radiation surfaces are provided on surfaces of the porous medium combustion chambers that are opposite to each other.
3. The mold preheating device according to claim 1 or 2, further comprising a radiation heating member disposed around at least one of the radiation surfaces.
4. The mold preheating device according to claim 3, wherein the radiation heating member is provided around the radiation surface and forms an annular cylinder shape.
5. A mold preheating system, which is characterized by comprising a premixing combustion system for premixing natural gas and combustion-supporting gas and the mold preheating device of any one of claims 1 to 4, wherein the gas outlet end of the premixing combustion system is communicated with the porous medium combustion chamber.
6. The mold preheating system of claim 5, further comprising an elevator mechanism drivingly connected to the support, the elevator mechanism configured to drive the mold preheating device up and down.
7. The mold preheating system according to claim 6, wherein the lifting mechanism comprises a connecting member, a power transmission member and a driving member, the connecting member is connected with the supporting member and is in transmission connection with the power transmission member, and the power transmission member is in transmission connection with a power output end of the driving member; the driving component can drive the power transmission piece to rotate and convert the power transmission piece into the linear motion of the connecting piece.
8. The mold preheating system according to claim 7, wherein the driving member includes a limiting member and a driving member, the power transmission member is a lead screw, the driving member is in transmission connection with the lead screw, the lead screw is in threaded connection with the connecting member, and the limiting member is slidably connected with the connecting member and can limit the connecting member to rotate.
9. A mold preheating method for preheating a mold cavity mainly using the mold preheating system according to any one of claims 5 to 8, comprising:
the porous medium combustor is arranged between the mold cavities, the driving mechanism drives the porous medium combustor to rotate so that the radiation surface rotates to a target position, the premixed combustion system is utilized to mix combustion-supporting gas and natural gas to obtain mixed gas, the mixed gas is conveyed into the porous medium combustion chamber and ignited, and the porous medium in the porous medium combustion chamber radiates heat to preheat the mold cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644458.2A CN112815309A (en) | 2020-12-31 | 2020-12-31 | Mold preheating device and system and mold preheating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644458.2A CN112815309A (en) | 2020-12-31 | 2020-12-31 | Mold preheating device and system and mold preheating method |
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| CN112815309A true CN112815309A (en) | 2021-05-18 |
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| CN202011644458.2A Pending CN112815309A (en) | 2020-12-31 | 2020-12-31 | Mold preheating device and system and mold preheating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349518A (en) * | 2022-01-11 | 2022-04-15 | 松山湖材料实验室 | Porous ceramic preform and preparation method thereof, and hammer head and preparation method thereof |
-
2020
- 2020-12-31 CN CN202011644458.2A patent/CN112815309A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114349518A (en) * | 2022-01-11 | 2022-04-15 | 松山湖材料实验室 | Porous ceramic preform and preparation method thereof, and hammer head and preparation method thereof |
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