CN216421038U - Mould preheating device - Google Patents
Mould preheating device Download PDFInfo
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- CN216421038U CN216421038U CN202220742970.9U CN202220742970U CN216421038U CN 216421038 U CN216421038 U CN 216421038U CN 202220742970 U CN202220742970 U CN 202220742970U CN 216421038 U CN216421038 U CN 216421038U
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- mold preheating
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Abstract
The utility model discloses a mold preheating device, which comprises a mold preheating table, a hot air accumulation barrel which is embedded in the table top of the mold preheating table and is provided with an upward opening, a blowing plate which is fixedly covered on the barrel mouth of the hot air accumulation barrel, and a heat preservation cover which covers the whole table top of the mold preheating table; an annular inner cover plate is fixedly arranged in the inner cavity of the heat-preservation cover, and the inner cover plate and the blowing plate form a mold preheating cavity; the hot air collecting device is characterized in that a plurality of blowing holes are uniformly formed in the surface of the blowing plate, an air inlet pipe is formed in the bottom of the hot air collecting barrel, the bottom opening of the air inlet pipe is connected with an air outlet of an electric heater arranged below the mold preheating table through a first ventilating pipeline, and an air inlet of the electric heater is connected with an air outlet of an air blower arranged outside the mold preheating table through a second ventilating pipeline. The utility model discloses can realize the thermally equivalent of mould, improve the mould and preheat efficiency, increase mould life.
Description
Technical Field
The utility model relates to automobile parts makes technical field, concretely relates to electric heating mould preheating device.
Background
In the manufacturing process of automobile parts, a differential pressure die is needed to be adopted for producing cast parts. The differential pressure mould needs to be preheated in advance in the production process, the current differential pressure mould adopts flame for preheating, and because the flame temperature is high and the heat is concentrated, the mould can bear overhigh alternating thermal stress, the cracking is easy to generate, the service life of the mould is shortened, and meanwhile, the preheater is easy to deform due to uneven heating, so that the defective rate of castings is increased. After the mold is preheated, the cast workpiece is blackened, and the appearance of the product is influenced.
Therefore, in order to meet the requirement of casting production of automobile parts, the cracking of the die is delayed, and the deformation of the die is reduced, a die preheating device with uniform heating is urgently needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to prior art not enough and provide a mould preheating device, realize the mould thermally equivalent.
In order to solve the above technical problem, the present invention includes:
a mould preheating device comprises a mould preheating table, a hot air accumulation barrel which is embedded in the table top of the mould preheating table and is provided with an upward opening, a blowing plate which is fixedly covered on the barrel mouth of the hot air accumulation barrel, and a heat insulation cover which covers the whole table top of the mould preheating table; an annular inner cover plate is fixedly arranged in the inner cavity of the heat-preservation cover, and the inner cover plate and the blowing plate form a mold preheating cavity; the hot air collecting device is characterized in that a plurality of blowing holes are uniformly formed in the surface of the blowing plate, an air inlet pipe is formed in the bottom of the hot air collecting barrel, the bottom opening of the air inlet pipe is connected with an air outlet of an electric heater arranged below the mold preheating table through a first ventilating pipeline, and an air inlet of the electric heater is connected with an air outlet of an air blower arranged outside the mold preheating table through a second ventilating pipeline.
Furthermore, the hot air accumulation barrel and the table surface of the mold preheating table are of an integrated structure.
Furthermore, a circle of concave outer edge is arranged on the periphery of the table top of the mold preheating table and used for supporting the outer side wall of the heat preservation cover when the heat preservation cover covers the mold preheating table.
Further, a heat-insulating layer is laid on the inner wall of the heat-insulating cover; a hanging ring is fixedly arranged at the top of the heat preservation cover.
Furthermore, a circle of a plurality of small ventilation holes are formed in the ring surface of the inner cover plate.
Furthermore, the two ends of the first ventilating pipeline and the second ventilating pipeline are fixedly connected with the corresponding ports through clamping hoops respectively.
Furthermore, the blowing plate consists of a circular top plate and a circular inner attachment plate fixed below the top plate, and the inner attachment plate is inserted into the hot air accumulation barrel and is attached to the inner wall of the hot air accumulation barrel.
Furthermore, the center of the top plate is provided with a blowing hole, and the periphery of the blowing hole positioned in the center of the top plate is also provided with two groups of inner and outer blowing holes, wherein each group of the inner and outer blowing holes is uniformly distributed on the circumference; each blowhole of the inner group of blowholes and the outer group of blowholes is respectively and fixedly provided with a blowpipe upwards, and the height of the blowpipes on the inner group of blowholes is lower than that of the blowpipes on the outer group of blowholes.
Furthermore, a circle of a plurality of bolt through holes are formed in the periphery of the top plate, bolts penetrate through the bolt through holes to enter corresponding bolt holes in the mold preheating table, and the air blowing plate and the mold preheating table are fixed together.
Further, a temperature sensor is arranged in the hot air accumulation barrel.
The utility model has the advantages that:
the utility model discloses a mould preheating device mainly used aluminium casting mould once, the secondary preheats, the device adopts the electrical heating mode, the air-blower heats the air in pumping the electric heater through the air duct, hot-air rethread another air duct gets into the hot-blast bucket that gathers on the mould preheating stage and gathers, then high-temperature gas heats the mould through the blast hole of evenly laying, the heating is even, can not make the mould produce the damage because of local overheat, and heating medium is the air, the working process is safe, the environmental protection. The utility model discloses improve the mould at to a great extent and preheat efficiency, increased the life of mould.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the preheating of the present invention;
FIG. 3 is a top view of the preheating stage of the present invention;
fig. 4 is a cross-sectional view of the preheating stage of the present invention;
FIG. 5 is a structural view of the heat-insulating cover of the present invention;
FIG. 6 is a front view of the blowing plate of the present invention;
fig. 7 is a top view of the blowing plate of the present invention;
fig. 8 is a perspective view of the blowing plate of the present invention;
in the figure: 1. the hot air blowing device comprises a fan support, 2, a fan fixing plate, 3, a blower, 4, a hoop, 5, a second ventilation pipeline, 6, a mold preheating table, 6-1 of an outer edge, 6-2 of a hot air accumulation barrel, 6-3 of a side hole, 6-4 of an air inlet pipe, 6-5 of a bolt hole, 7, a heat preservation cover, 7-1 of an outer side wall, 7-2 of an inner cover plate, 7-3 of a ventilation small hole, 8 of a heat preservation layer, 9 of a bolt, 10 of a mold, 11 of a lifting ring, 12 of a blowing plate, 12-1 of a bolt through hole, 12-2 of a blowing hole, 12-3 of an inner pasting plate, 13 of a first ventilation pipeline, 14 and an electric heater.
Detailed Description
For the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.
As shown in fig. 1, the utility model provides an electric heating mold preheating device, which comprises a mold preheating table 6, a hot air accumulation barrel 6-2 embedded in the table top of the mold preheating table 6 and opening upwards, a blowing plate 12 fixedly covering the opening of the hot air accumulation barrel 6-2, and a heat preservation cover 7 covering the whole table top of the mold preheating table 6; the hot air accumulation barrel 6-2 and the table surface of the mold preheating table 6 are of an integrated structure, an annular inner cover plate 7-2 is fixedly arranged in the inner cavity of the heat-insulating cover 7, and the inner cover plate 7-2 and the blowing plate 12 form a mold preheating cavity; the plate surface of the blowing plate 12 is uniformly provided with a plurality of blowing holes 12-2, the bottom of the hot air accumulation barrel 6-2 is provided with an air inlet pipe 6-4, the bottom opening of the air inlet pipe 6-4 is connected with the air outlet of an electric heater 14 arranged below the mold preheating table 6 through a first ventilation pipeline 13, the air inlet of the electric heater 14 is connected with the air outlet of an air blower 3 arranged outside the mold preheating table 6 through a second ventilation pipeline 5, and the air blower 3 is fixedly arranged on the fan bracket 1 through a fan fixing plate 2.
The preheating principle is as shown in fig. 2, the fan bracket 1 is fixed on the flat ground through anchor bolts, the fan bracket 1 is fixed with the fan bracket 2 through bolts, and the air blower 3 is fixed on the fan bracket 1. The second ventilation pipeline 5 is connected with the air outlet of the air blower 3 and the air inlet of the electric heater 14, and two ends of the second ventilation pipeline 5 are sealed and fixed by a hoop 4. The air outlet of the electric heater 14 is communicated with the air inlet pipe 6-4 through a first ventilating duct 13, and two ends of the first ventilating duct 13 are fixed through a hoop 4. The air blower 3 pumps air into the electric heater 14 through the second ventilation pipeline 5 for heating, hot air enters the hot air accumulation barrel 6-2 of the blowing plate 12 through the first ventilation pipeline 13 for accumulation, and then the mould is heated through the blow holes 12-2.
As shown in fig. 3 and 4, the mold preheating table 6 is fixed on a flat ground through anchor bolts, and a circle of concave outer edges are arranged on the periphery of the table top of the mold preheating table 6 and used for supporting the outer side wall 7-1 of the heat-insulating cover 7 when the heat-insulating cover 7 is covered; the side surface of the bottom end of the mold preheating table 6 is provided with a side hole 6-3 for a second ventilation pipeline 5 to pass through.
As shown in FIG. 5, the outer side wall of the heat-insulating cover 7 is closely fitted with the outer edge 6-1 of the mold preheating stage 6, and the lower end face of the inner cover plate 7-2 is attached to the outer edge of the upper end face of the blowing plate 12 to form a mold preheating cavity. Meanwhile, a circle of a plurality of small ventilation holes 7-3 are formed in the ring surface of the inner cover plate 7-2, so that the heat-insulating cover 7 is prevented from being jacked up due to overlarge wind pressure of a preheating cavity of the die. And a lifting ring 11 is fixedly arranged at the top of the heat-insulating cover 7, so that hoisting equipment can be conveniently lifted, and the operation of replacing the mold can be carried out. Meanwhile, the inner wall of the heat-insulating cover 7 is paved with a heat-insulating layer 8 to prevent heat loss. The hot air accumulation barrel 6-2 is internally provided with a temperature sensor which can monitor the heated air in real time, and when the temperature exceeds the set temperature, the preheating control system is fed back to stop heating, so that the damage of the die caused by local overheating is prevented.
As shown in fig. 6, 7 and 8, the blowing plate 12 is composed of a circular top plate and a circular inner attached plate 12-3 fixed below the top plate, a circle of a plurality of bolt through holes 12-1 are formed in the periphery of the top plate, and the blowing holes 12-2 are formed in the top plate. The circular inner pasting plate 12-3 is inserted into the hot air accumulation barrel 6-2 and is installed in a pasting mode with the hot air accumulation barrel, the center of the top plate is provided with a blowing hole 12-2, the periphery of the blowing hole 12-2 in the center of the top plate is further provided with two groups of inner blowing holes and two groups of outer blowing holes 12-2, and each group of the inner blowing holes and the outer blowing holes are evenly distributed in the circumferential direction; each blowhole 12-2 of the inner group of blowholes and the outer group of blowholes 12-2 is respectively and fixedly provided with a blowpipe upwards, and the height of the blowpipe on the inner group of blowholes 12-2 is lower than that of the blowpipe on the outer group of blowholes 12-2, so that the molds with different sizes and shapes can be fully contacted with hot air, and the preheating efficiency is improved. The bolts 9 pass through the bolt through holes 12-1 to enter the corresponding bolt holes 6-5 on the mold preheating stage 6, and the air blowing plate 12 and the mold preheating stage 6 are tightly fixed together.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a mould preheating device which characterized in that: comprises a mold preheating table (6), a hot air accumulation barrel (6-2) which is embedded on the table top of the mold preheating table (6) and is provided with an upward opening, a blowing plate (12) which is fixedly covered on the barrel mouth of the hot air accumulation barrel (6-2) and a heat preservation cover (7) which covers the whole table top of the mold preheating table (6); an annular inner cover plate (7-2) is fixedly arranged in the inner cavity of the heat-insulating cover (7), and the inner cover plate (7-2) and the air blowing plate (12) form a mold preheating cavity; the hot air collection device is characterized in that the plate surface of the air blowing plate (12) is uniformly provided with a plurality of air blowing holes (12-2), the bottom of the hot air collection barrel (6-2) is provided with an air inlet pipe (6-4), the bottom opening of the air inlet pipe (6-4) is connected with the air outlet of an electric heater (14) arranged below the mold preheating table (6) through a first ventilation pipeline (13), and the air inlet of the electric heater (14) is connected with the air outlet of an air blower (3) arranged on the outer side of the mold preheating table (6) through a second ventilation pipeline (5).
2. The mold preheating device according to claim 1, wherein: the hot air accumulation barrel (6-2) and the table surface of the mold preheating table (6) are of an integrated structure.
3. The mold preheating device according to claim 1, wherein: the periphery of the table top of the mold preheating table (6) is provided with a circle of concave outer edges for supporting the outer side wall of the heat-insulating cover (7) when the heat-insulating cover (7) covers.
4. The mold preheating device according to claim 1, wherein: an insulating layer (8) is laid on the inner wall of the insulating cover (7); the top of the heat preservation cover (7) is fixedly provided with a hanging ring (11).
5. The mold preheating device according to claim 1, wherein: a circle of a plurality of small ventilation holes (7-3) are arranged on the ring surface of the inner cover plate (7-2).
6. The mold preheating device according to claim 1, wherein: the two ends of the first ventilating pipeline (13) and the second ventilating pipeline (5) are fixedly connected with corresponding openings through clamping hoops (4) respectively.
7. The mold preheating device according to claim 1, wherein: the air blowing plate (12) consists of a circular top plate and a circular inner attachment plate (12-3) fixed below the top plate, and the inner attachment plate (12-3) is inserted into the hot air accumulation barrel (6-2) and is attached to the inner wall of the hot air accumulation barrel.
8. The mold preheating device according to claim 7, wherein: the center of the top plate is provided with a blowhole (12-2), and the periphery of the blowhole (12-2) on the center of the top plate is also provided with two groups of inner blowholes and outer blowholes (12-2) which are uniformly distributed in the circumference; each blowhole (12-2) of the inner group and the outer group of blowholes (12-2) is respectively and fixedly provided with a blowpipe upwards, and the height of the blowpipe on the inner group of blowholes (12-2) is lower than that of the blowpipe on the outer group of blowholes (12-2).
9. The mold preheating device according to claim 7, wherein: a circle of a plurality of bolt through holes (12-1) are formed in the periphery of the top plate, bolts (9) penetrate through the bolt through holes (12-1) to enter corresponding bolt holes (6-5) in the mold preheating table (6), and the air blowing plate (12) and the mold preheating table (6) are fixed together.
10. The mold preheating device according to claim 1, wherein: a temperature sensor is arranged in the hot air accumulation barrel (6-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220742970.9U CN216421038U (en) | 2022-04-01 | 2022-04-01 | Mould preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220742970.9U CN216421038U (en) | 2022-04-01 | 2022-04-01 | Mould preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216421038U true CN216421038U (en) | 2022-05-03 |
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ID=81321317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220742970.9U Active CN216421038U (en) | 2022-04-01 | 2022-04-01 | Mould preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216421038U (en) |
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2022
- 2022-04-01 CN CN202220742970.9U patent/CN216421038U/en active Active
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