CN113891510A - Radiation disc structure and processing method of heat insulation ring on radiation disc - Google Patents
Radiation disc structure and processing method of heat insulation ring on radiation disc Download PDFInfo
- Publication number
- CN113891510A CN113891510A CN202110667375.3A CN202110667375A CN113891510A CN 113891510 A CN113891510 A CN 113891510A CN 202110667375 A CN202110667375 A CN 202110667375A CN 113891510 A CN113891510 A CN 113891510A
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- die
- heat insulation
- sleeve
- insulation ring
- mold
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- 230000005855 radiation Effects 0.000 title claims abstract description 31
- 238000009413 insulation Methods 0.000 title claims description 84
- 238000003672 processing method Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
- 239000012778 molding material Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 210000001503 joint Anatomy 0.000 claims 1
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 230000001629 suppression Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/26—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor mounted on insulating base
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Thermal Insulation (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a radiation disc structure, and provides a radiation disc structure with simple structure, high strength and good heat-insulating performance and a processing method of a heat-insulating ring on the radiation disc, which solves the technical problems of poor strength, easy fracture, poor replaceability and the like of the heat-insulating ring in the prior art.
Description
Technical Field
The invention relates to a radiation disc structure, in particular to a radiation disc structure with simple structure, high strength and good heat insulation performance and a processing method of a heat insulation ring on the radiation disc.
Background
The electric radiation heater is called as a radiation plate for short, is a kitchen utensil, and is increasingly popularized and applied in life because of the advantages of high heating speed, no radiation, no pan selection, attractive appearance and the like. The radiation disc is usually composed of a temperature limiter, a heat insulation ring, a heat insulation base, a resistance wire and the like, the radiation disc is pressed below the microcrystalline glass through an elastic element, the microcrystalline glass plays a role in heat conduction, and the heat insulation ring plays a role in supporting and insulating heat in the electric radiation heater, so that the radiation disc has certain strength and also has good heat insulation performance. The height of the existing heat insulation ring is usually about 14mm, a mechanical temperature limiter is installed on a radiation disc, a mounting hole about 6mm needs to be drilled in the middle of the heat insulation ring, so that the strength of the heat insulation ring is poor, the heat insulation ring is extremely prone to cracking in the processing and transportation processes, if the heat insulation ring cracks before the heat limiter and the radiation disc are welded, the heat insulation ring can be replaced after the temperature limiter is detached, and if the heat insulation ring cracks after the heat limiter and the radiation disc are welded, the heat insulation ring cannot be replaced, and only the whole heat insulation ring can be discarded. The heat insulation ring is usually formed by pressing vermiculite or vermiculite with silica powder and inorganic glue after being stirred according to a certain proportion, the compression ratio is usually between 3 and 12, the larger the compression ratio is, the higher the strength of the heat insulation ring is, the heat insulation ring is not easy to crack in the processing and transportation processes, but the heat insulation performance can be reduced, and when the compression ratio of each part of the heat insulation ring is consistent, the heat insulation ring is not easy to deform, if the compression ratio of each part of the heat insulation ring is larger, the heat insulation ring is easy to deform when stress is released after pressing, the assembly size deviation of the heat insulation ring is larger, the installation requirement cannot be met, and therefore the heat insulation ring with all aspects of performances meeting the use requirement is becoming the research and development direction of related technicians.
Disclosure of Invention
The invention mainly provides a radiation disc structure with simple structure, high strength and good heat insulation performance and a processing method of a heat insulation ring on the radiation disc, and solves the technical problems of poor strength, easy fracture, poor replaceability and the like of the heat insulation ring in the prior art.
The technical problem of the invention is mainly solved by the following technical scheme: a radiation disc structure comprises an insulating base and a heat insulation ring butted on a port of the insulating base, wherein a resistance wire is paved at the bottom of the insulating base, a temperature limiter is hung above the resistance wire, a notch groove is formed in the lower port of the heat insulation ring corresponding to the temperature limiter, and the temperature limiter is clamped and fixed in the notch groove. The temperature limiter is fixed through the centre gripping of the breach groove of thermal-insulated circle below to need not to circle drilling at thermal-insulated, the fixed mode of temperature limiter is simple reliable, and the breach groove adopts one-time compression moulding, and thermal-insulated circle intensity can not reduce, and easy dismounting can not produce unnecessary waste when changing the temperature limiter simultaneously.
Preferably, the edge of the port of the insulating base extends upwards to the lower edge of the temperature limiter, and the temperature limiter is clamped and fixed between the notch groove and the port of the insulating base. The port border of insulating base upwards extends, reduces the height of thermal-insulated circle in step, and the temperature limiter centre gripping is fixed between the port of breach groove and insulating base, has guaranteed the original design height of temperature limiter, has simplified the fixed of temperature limiter simultaneously.
Preferably, the testing end of the temperature limiter extends to the middle part of the insulating base and is kept horizontally supported by the supporting block.
Preferably, the temperature limiter keeps a set distance from the bottom surface of the insulating base. The temperature limiter keeps a set distance from the bottom surface of the insulating base, and the temperature of the temperature limiter is accurately controlled.
The utility model provides a mould for processing thermal-insulated circle in radiation panel structure, includes interior die sleeve and the suit outside the interior die sleeve, presss from both sides between interior die sleeve and outer die sleeve and is equipped with mould and lower mould, and interior die sleeve, outer die sleeve, last mould and lower mould enclose jointly and close into the die cavity, the horizontal loose core that can extend to the die cavity is being inserted and is being connected in the slip on the outer die sleeve, and the lower border downwardly extending forms the arch with the last mould lower limb that the horizontal loose core corresponds. The horizontal core pulling device is characterized in that the horizontal core pulling device is arranged outside the cavity and can slide into the cavity, the lower edge of an upper die corresponding to the horizontal core pulling top is provided with a protrusion, when the heat insulation ring presses the filler, the horizontal core pulling device is located in the cavity, the horizontal core pulling device is pulled out of the cavity after the filler, and the protrusion enters the cavity corresponding to the horizontal core pulling device when the upper die continues to be pressed down, so that the compression ratio of the notch groove of the heat insulation ring and other positions after molding is basically consistent, the heat insulation ring is high in strength and not prone to deformation, and the use and assembly requirements are met.
Preferably, the inner die insert sleeve is fitted around the outer die sleeve, the outer die insert sleeve is fitted into the outer die sleeve, the inner cover plate is fitted and fixed to the upper ports of the inner die sleeve and the inner die insert sleeve, and the outer cover plate is fitted and fixed to the upper ports of the outer die sleeve and the outer die insert sleeve corresponding to the inner cover plate. The inner cover plate and the outer cover plate are used for fixing the inner die sleeve and the outer die sleeve and the inner die embedding sleeve and the outer die embedding sleeve.
Preferably, an outer ring surface of the port on the inner die sleeve matched with the upper die extends inwards to form a step. Go up to step department after the thermal-insulated circle suppression and carry out stress release, guide thermal-insulated circle towards step internal deformation to make the outer anchor ring size of thermal-insulated circle can guarantee, and then ensure that thermal-insulated circle satisfies its and the cooperation size of shell body.
A method for processing a heat insulation ring is characterized by comprising the following steps: the method comprises the following steps:
1) the upper die ascends, and the lower die descends to a set position;
2) the horizontal loose core extends into the cavity;
3) filling the cavity with a heat insulation ring molding material;
4) the upper die descends, and after entering the cavity, the heat insulation ring molding material is pressed downwards to a set position;
5) extracting the horizontal loose core from the cavity;
6) the lower die ascends to the upper part of the horizontal loose core, and the upper die presses the heat insulation ring forming material to a set position;
7) and (5) finishing the forming of the heat insulation ring, and demoulding and taking out.
When thermal-insulated circle suppression was packed, the level is loosed core and is located the die cavity, loose core the level again after the pre-compaction and take out from the die cavity, go up the mould and continue to push down, go up the mould and go into the die cavity that the level was loosed core and is corresponded along the arch that corresponds down, thereby make the compression ratio of the breach groove department of thermal-insulated circle after the shaping and compress the ratio with other positions and keep unanimous basically, the thermal-insulated circle suppression that breach groove department corresponds packs the phenomenon of excessive pressure, thermal-insulated circle intensity is high and difficult variant, the use and the assembly demand of thermal-insulated circle have been satisfied, simple process, high strength, and good heat-proof quality.
Preferably, after the step 6) is completed, the upper die moves upwards to reset, and the lower die moves upwards to a position above the step and stays for a set time. After the heat insulation ring is pressed and formed, the lower die rises to drive the heat insulation ring forming part to stay above the step for stress release, and the gap is reserved between the inner ring surface of the heat insulation ring forming part and the inner ring surface of the step, so that the heat insulation ring forming part can only deform towards the inside of the step, the size of the installation matching surface of the heat insulation ring, namely the size of the outer ring surface of the heat insulation ring is ensured, and the heat insulation ring is ensured to meet the matching size of the heat insulation ring and the shell.
Preferably, the compression ratio of the heat insulation ring molding material corresponding to the two sides of the bulge is 4 to 10, and the compression ratio at the bulge is 1.2 to 1.5 times of that of other parts. The whole compression ratio of the heat insulation ring is basically consistent, namely the compression ratio at the notch groove is basically kept unchanged, so that the performance and the quality of the heat insulation ring are ensured.
Therefore, the radiation disc structure and the processing method of the heat insulation ring on the radiation disc have the following advantages: the horizontal loose core is used as a core, the horizontal loose core is extracted from the cavity after prepressing, and the bulge at the lower end part of the upper die enters the cavity corresponding to the horizontal loose core when the upper die is continuously pressed down, so that the compression ratio at the notch groove of the heat insulation ring is basically consistent with the compression ratios at other positions, the heat insulation ring has high strength and is not easy to deform, the use and assembly requirements of the heat insulation ring are met, the process is simple, and the heat insulation performance is good; the formed heat insulation ring rises to the upper side of the step and stays for stress release, so that the heat insulation ring forming piece can only deform towards the inner side of the step, the size of the outer ring surface of the heat insulation ring is kept unchanged, and the heat insulation ring is ensured to meet the matching requirement of the heat insulation ring and the shell.
Description of the drawings:
FIG. 1 is a schematic structural view of a radiation disk structure of the present invention;
FIG. 2 is a cross-sectional view of an insulating collar of the present invention;
FIG. 3 is a schematic structural diagram of a mold for processing an insulating ring according to the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
fig. 5 is an enlarged view at B shown in fig. 3.
The specific implementation mode is as follows:
the technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
as shown in fig. 1 and 2, the radiation plate structure of the present invention comprises a disc-shaped insulating base 1 and a heat insulation ring 2 butted on the port of the insulating base 1, a resistance wire 3 is flatly laid on the bottom of the insulating base 1, a temperature limiter 4 is horizontally suspended above the resistance wire 3, the port edge of the insulating base 1 extends upward to the lower edge of the fixed end of the temperature limiter 4, the lower port of the heat insulation ring 2 corresponding to the fixed end of the temperature limiter 4 is provided with a notch groove 5, the cross section of the notch groove 5 is V-shaped in the embodiment, the notch groove 5 can also be U-shaped or semicircular and other shapes, the temperature limiter 4 is clamped and fixed between the notch groove 5 and the port of the insulation base 1, the testing end of the temperature limiter 4 extends to the middle of the insulation base 1 and is horizontally supported through a supporting block 6 on the insulation base 1, and a set distance is kept between the temperature limiter 4 and the bottom surface of the insulation base 1.
As shown in fig. 3, a mold for processing a heat insulation ring in a radiation plate structure comprises an annular inner mold sleeve 7 and an annular outer mold sleeve 8 coaxially sleeved outside the inner mold sleeve 7, an annular upper mold 9 and an annular lower mold 10 are clamped between the inner mold sleeve 7 and the outer mold sleeve 8, the inner mold sleeve 7, the outer mold sleeve 8, the upper mold 9 and the lower mold 10 jointly enclose a forming cavity 11, an inner mold insert 13 is sleeved outside the inner mold sleeve 7 in a matching manner, an outer mold insert 14 is sleeved inside the outer mold sleeve 8 in a matching manner, a circular inner cover plate 15 is covered and fixed on upper ports of the inner mold sleeve 7 and the inner mold insert 13, an annular outer cover plate 16 is covered and fixed on upper ports of the outer mold sleeve 8 and the outer mold insert 14 corresponding to the inner cover plate 15, upper and lower surfaces of the inner cover plate 15 and the outer cover plate 16 are flush, the upper and lower surfaces of the upper mold plate 9 pass through a gap between the inner cover plate 15 and the outer cover plate 16 and extend into the cavity 11, and a horizontal core pulling core 12 which can extend into the cavity 11 in a sliding manner is inserted and inserted on the outer mold sleeve 8, the outer side end of the horizontal loose core 12 is connected with an air cylinder, as shown in fig. 4, the lower edge of the upper die 9 corresponding to the horizontal loose core 12 extends downwards to form a protrusion 91, the shape and size of the protrusion 91 are consistent with those of the notch groove 5, as shown in fig. 5, the outer ring surface of the upper port of the inner die insert sleeve 13 matched with the upper die 9 extends inwards to form an annular step 17, and the inner ring surface of the step 17 is 0.2mm to 0.8mm lower than the outer ring surface.
A method for processing a heat insulation ring is characterized by comprising the following steps: the method comprises the following steps:
1) the upper die 9 moves upwards and leaves the cavity 11, and the lower die 10 moves downwards to a position which is 1mm to 1.5mm away from the lower edge of the horizontal loose core 12;
2) the horizontal loose core 12 is driven by an air cylinder to extend into the cavity 11;
3) filling the cavity 11 with a heat insulation ring molding material;
4) the upper die 9 descends, and after entering the cavity 11, the heat insulation ring molding material is pressed downwards to a position 1mm to 3mm lower than the lower surfaces of the inner cover plate 15 and the outer cover plate 16;
5) extracting the horizontal loose core 12 from the cavity 11;
6) the lower die 10 ascends to a position 1mm to 3mm higher than the upper edge of the horizontal core pulling 12, the upper die 9 presses down the heat insulation ring forming material, the pressure-sink ratio of the heat insulation ring forming material corresponding to the outside of the bulge 91 is 4 to 10, and the pressure-sink ratio of the bulge 91 is 1.2 to 1.5 times that of other parts;
7) the upper die 9 moves upwards to reset, and the lower die 10 moves upwards to a position 1mm to 3mm above the step 17 and then stays for 1 second to 5 seconds to release stress;
8) and (3) finishing the molding of the heat insulation ring 2, ascending the lower die 10 to eject the heat insulation ring 2 out of the cavity 11, and finishing the compression molding of the heat insulation ring 2.
The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a radiation disc structure, includes insulator foot (1) and butt joint thermal-insulated circle (2) on insulator foot (1) port, resistance wire (3) are being mated formation to the bottom of insulator foot (1), and the top of resistance wire (3) is hung and is equipped with temperature limiter (4), its characterized in that: the lower end opening of the heat insulation ring (2) corresponding to the temperature limiter (4) is provided with a notch groove (5), and the temperature limiter (4) is clamped and fixed in the notch groove (5).
2. A radiating disc structure according to claim 1, wherein: the port edge of the insulating base (1) extends upwards to the lower edge of the temperature limiter (4), and the temperature limiter (4) is clamped and fixed between the notch groove (5) and the port of the insulating base (1).
3. A radiating disc structure according to claim 1, wherein: the testing end of the temperature limiter (4) extends to the middle part of the insulating base (1) and is kept horizontally supported by the supporting block (6).
4. A radiating disc structure according to claim 1, wherein: and a set distance is kept between the temperature limiter (4) and the bottom surface of the insulating base (1).
5. A mold for processing the heat insulation ring in the radiation plate structure of claim 1, comprising an inner mold sleeve (7) and an outer mold sleeve (8) sleeved outside the inner mold sleeve (7), wherein an upper mold (9) and a lower mold (10) are clamped between the inner mold sleeve (7) and the outer mold sleeve (8), the inner mold sleeve (7), the outer mold sleeve (8), the upper mold (9) and the lower mold (10) jointly enclose a cavity (11), characterized in that: the outer die sleeve (8) is slidably inserted with a horizontal loose core (12) which can extend into the die cavity (11), and the lower edge of the upper die (9) corresponding to the horizontal loose core (12) extends downwards to form a protrusion (91).
6. A radiating disc structure according to claim 5, wherein: an inner die insert sleeve (13) is sleeved outside the inner die sleeve (7) in an matched mode, an outer die insert sleeve (14) is sleeved inside the outer die sleeve (8) in an matched mode, an inner cover plate (15) is fixed on the upper end openings of the inner die sleeve (7) and the inner die insert sleeve (13) in a covering mode, and an outer cover plate (16) is fixed on the upper end openings of the outer die sleeve (8) and the outer die insert sleeve (14) which correspond to the inner cover plate (15) in a covering mode.
7. A radiating disc structure according to claim 5, wherein: and the outer ring surface of the upper port of the inner die sleeve (7) which is matched with the upper die (9) extends inwards to form a step (17).
8. A method for processing a heat insulation ring by using the die of claim 7, which is characterized in that: the method comprises the following steps:
1) the upper die (9) ascends, and the lower die (10) descends to a set position;
2) the horizontal loose core (12) extends into the cavity (11);
3) filling the cavity (11) with a heat insulation ring molding material;
4) the upper die (9) descends, and after entering the cavity (11), the heat insulation ring molding material is pressed downwards to a set position;
5) drawing out the horizontal loose core (12) from the cavity (11);
6) the lower die (10) moves upwards to the position above the horizontal loose core (12), and the upper die (9) presses the heat insulation ring forming material downwards to a set position;
7) and (3) finishing the molding of the heat insulation ring (2), and demoulding and taking out.
9. A method for manufacturing a structurally heat-insulating ring for a radiant panel as claimed in claim 8, characterized in that it comprises: and 6), after the step 6) is finished, the upper die (9) moves upwards to reset, and the lower die (10) moves upwards to the position above the step (17) and stays for a set time.
10. A method for manufacturing a structurally heat-insulating ring for a radiant panel as claimed in claim 8, characterized in that it comprises: the pressure sink ratio of the heat insulation ring molding material corresponding to the two sides of the bulge (91) is 4-10, and the pressure sink ratio of the bulge (91) is 1.2-1.5 times of that of other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667375.3A CN113891510B (en) | 2021-06-16 | 2021-06-16 | Radiation disc structure and processing method of heat insulation ring on radiation disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667375.3A CN113891510B (en) | 2021-06-16 | 2021-06-16 | Radiation disc structure and processing method of heat insulation ring on radiation disc |
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| Publication Number | Publication Date |
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| CN113891510A true CN113891510A (en) | 2022-01-04 |
| CN113891510B CN113891510B (en) | 2024-04-26 |
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