CN216377914U - Hot bending furnace for processing automobile rearview mirror glass - Google Patents
Hot bending furnace for processing automobile rearview mirror glass Download PDFInfo
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- CN216377914U CN216377914U CN202122766072.5U CN202122766072U CN216377914U CN 216377914 U CN216377914 U CN 216377914U CN 202122766072 U CN202122766072 U CN 202122766072U CN 216377914 U CN216377914 U CN 216377914U
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- glass
- hot bending
- heating chamber
- annular heating
- rearview mirror
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Abstract
The utility model discloses a hot bending furnace for processing automobile rearview mirror glass, which comprises a rotating shaft vertically fixed on the ground, a rotary table arranged on the rotating shaft through a bearing seat, a plurality of speed reducing motors for driving the rotary table to rotate, a plurality of glass hot bending molds arranged on the rotary table in an annular array mode, and an annular heating chamber arranged on the periphery of the rotary table and used for hot bending glass original sheets in the glass hot bending molds. In the application, the heat source gas which generates heat around the heating formed workpiece is conveyed to the glass sheet and the glass hot bending die in the preheating zone, so that the energy-saving effect is achieved; in addition, the installation position of the electric heater is parallel to the rotation direction of the glass sheet, so that the glass sheet is heated more uniformly, and in addition, the power of the electric heater in the annular heating chamber is gradually increased, so that the glass is prevented from being rapidly heated and cracking caused by nonuniform local heating.
Description
Technical Field
The utility model relates to the technical field of automobile glass processing, in particular to a hot bending furnace for processing automobile rearview mirror glass.
Background
The automobile rearview mirror glass is usually subjected to hot bending forming processing by using a hot bending furnace, but after the glass sheet is subjected to hot bending forming, cooling and demoulding treatment are needed, and when the glass sheet and a mould thereof enter the hot bending furnace, preheating treatment is needed; in addition, after the glass sheet enters the hot bending furnace, the heating temperature close to the rotating shaft is higher than that far away from the rotating shaft due to the arrangement position of the heater is vertical to the rotating direction of the glass sheet and the annular movement of the heater.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hot bending furnace for processing automobile rearview mirror glass, which solves the problems that the preheating utilization efficiency of a formed workpiece is low and the original glass sheet is heated unevenly in the hot bending furnace when the automobile rearview mirror glass is processed conventionally.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a hot bending furnace for processing automobile rearview mirror glass,
the device comprises a rotating shaft vertically fixed on the ground, a rotating disc arranged on the rotating shaft through a bearing seat, a plurality of speed reducing motors used for driving the rotating disc to rotate, a plurality of glass hot bending moulds arranged on the rotating disc in an annular array mode, and an annular heating chamber arranged on the periphery of the rotating disc and used for carrying out hot bending processing on glass original sheets in the glass hot bending moulds;
in the embodiment, the turntable is continuously rotated through a plurality of speed reduction motors, wherein a circle of racks can be arranged on the outer wall of the turntable, and the turntable is driven to rotate through a plurality of speed reducers in a gear meshing transmission mode; the annular heating chamber is divided into a preheating zone, a heating zone and a heat insulation zone; a rotary table outside the annular heating chamber is divided into a glass original sheet placing area and a cooling demolding area;
the inner section of the annular heating chamber is a C-shaped channel, the glass hot-bending die and the glass original sheet are driven to pass through the C-shaped channel by the rotation of the turntable, an electric heater for carrying out hot-bending treatment on the glass original sheet is installed at the inner top of the annular heating chamber, and a heat-insulating inner wall is installed on the side wall of the annular heating chamber; the electric heater comprises a quartz tube and an electric heating wire arranged in the quartz tube, wherein a plurality of electric heaters which are connected in parallel are arranged at the inner top of the annular heating chamber, and the electric heaters are arranged for a plurality of circles along the rotating direction of the glass hot bending mould so as to uniformly heat the glass original sheet in the glass hot bending mould; the electric heater is of a straight pipe structure, and because the turntable is large enough and the electric heater is relatively small, the electric heater arranged on the annular heating chamber can be regarded as a circular arc structure, so that the glass hot bending die and the glass sheet are heated more uniformly, and the difference of the influence of heat radiation caused by position difference is compensated;
and the top of the annular heating chamber is communicated with an air exhaust pipe, the air exhaust pipe is communicated with a high-temperature-resistant air pump, and the heating unit air in the annular heating chamber is conveyed to a preheating area of the glass original sheet through an exhaust pipe.
In this embodiment, it is further optimized that the turntable includes a bearing seat, and an annular plate mounted on the bearing seat through a plurality of connecting frames; wherein the turntable is a 360-degree annular plate, and the circle center of the turntable is the bearing seat.
In this embodiment, it is further optimized that the insulating brick is installed on the turntable and at the bottom of the glass hot bending mold, so as to reduce heat loss.
In this embodiment, it is further optimized that the heat-insulating inner wall is a refractory heat-insulating brick, wherein a passing gap is reserved between the heat-insulating inner wall and the rotary table, so that the rotary table drives the glass original sheet and the glass hot-bending mold to pass smoothly, and the glass original sheet and the glass hot-bending mold are heated in the rotating process.
In this embodiment, further optimization is performed, in the annular heating chamber, along an inlet of the glass hot bending mold, the power of the electric heater is gradually increased, and the glass sheet is heated gradually, so that the glass is prevented from being cracked due to local uneven heating caused by rapid heating.
Compared with the prior art, the utility model has the beneficial technical effects that: in the application, the heat source gas which generates heat around the heating formed workpiece is conveyed to the glass sheet and the glass hot bending die in the preheating zone, so that the energy-saving effect is achieved; in addition, the installation position of the electric heater is parallel to the rotation direction of the glass sheet, so that the glass sheet is heated more uniformly, and in addition, the power of the electric heater in the annular heating chamber is gradually increased, so that the glass is prevented from being rapidly heated and cracking caused by nonuniform local heating.
Drawings
The utility model is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic main body view of a hot bending furnace for processing glass of an automobile rearview mirror according to the present invention;
FIG. 2 is a schematic cross-sectional view of a hot bending furnace for processing glass of an automobile rearview mirror according to the present invention;
FIG. 3 is a partial schematic view of a hot bending furnace for processing the glass of an automobile rearview mirror according to the present invention;
FIG. 4 is a schematic view of an electric heating tube of the hot bending furnace for processing the glass of the rearview mirror of the automobile.
Description of reference numerals:
1. a turntable; 1a, a rotating shaft; 2. a reduction motor; 3. a glass hot bending mould; 3a, insulating bricks; 4. an annular heating chamber; 4a, an electric heater; 4b, insulating the inner wall; 5. a high temperature resistant air pump; 5a, an air exhaust pipe; 5b, an exhaust pipe.
Detailed Description
The embodiment discloses a hot bending furnace for processing automobile rearview mirror glass, which comprises a rotating shaft 1a vertically fixed on the ground, a rotary table 1 arranged on the rotating shaft 1a through a bearing seat, a plurality of speed reducing motors 2 used for driving the rotary table 1 to rotate, a plurality of glass hot bending molds 3 arranged on the rotary table 1 in an annular array mode, and an annular heating chamber 4 arranged on the periphery of the rotary table 1 and used for hot bending glass raw sheets in the glass hot bending molds 3;
as shown in fig. 1, the turntable 1 includes a bearing housing, an annular plate mounted on the bearing housing through a plurality of connection frames;
the glass hot bending mould 3 is arranged in a ring array mode by taking a rotating shaft of the turntable 1 as a circle center; the force is uniformly and symmetrically applied to each position of the turntable 1;
in the embodiment, the annular heating chamber is divided into a preheating zone, a heating zone and a heat insulation zone; a rotary table outside the annular heating chamber is divided into a glass original sheet placing area and a cooling demolding area; the top of the annular heating chamber 4 is communicated with an air exhaust pipe 5a, the air exhaust pipe 5a is communicated with a high-temperature resistant air pump 5, and the heating element gas in the annular heating chamber 4 is conveyed to a preheating area of the glass original sheet through an air exhaust pipe 5 b; the glass original sheets in the glass hot bending die 3 are placed, rotated along with the rotary table 1, enter a preheating area of the glass original sheets and then enter a heating area and a heat insulation area in the annular heating chamber 4; out of the annular heating chamber 4 into the cooling and demolding area;
in this embodiment, through with the hot unit gas in thermal-insulated district carries through exhaust tube 5a, high temperature resistant air pump 5, blast pipe 5b the preheating zone of former piece of glass and the curved mould 3 of glass heat, the work piece to thermal-insulated district is cooled down gradually in the convenience, can also play the effect of preheating the utilization simultaneously, right the former piece of glass and the curved mould 3 of glass heat carry out preliminary preheating.
As shown in fig. 2 and 3, the inner section of the annular heating chamber 4 is a C-shaped channel, the glass hot-bending mold 3 and the glass sheet are driven to pass through the C-shaped channel by the rotation of the turntable 1, an electric heater 4a for hot-bending the glass sheet is installed at the inner top of the annular heating chamber 4, and a heat-insulating inner wall 4b is installed on the side wall of the annular heating chamber 4;
wherein an insulating brick 3a is arranged on the turntable 1 and at the bottom of the glass hot bending mold 3, and an insulating brick 3a is arranged on the turntable 1 and at the bottom of the glass hot bending mold 3;
the heat-insulating inner wall 4b is a refractory heat-insulating brick, wherein a passing gap is reserved between the heat-insulating inner wall 4b and the turntable 1; the turntable is convenient for driving the glass original sheet and the glass hot bending die to pass smoothly and heating is carried out in the rotating process.
As shown in fig. 4, the electric heater 4a comprises a quartz tube and an electric heating wire installed in the quartz tube, wherein a plurality of the electric heaters 4a connected in parallel are installed at the inner top of the ring-shaped heating chamber 4, wherein the electric heaters 4a are arranged in a plurality of turns along the rotation direction of the glass bending mold 3, so that the glass original sheet in the glass bending mold 3 is uniformly heated; the electric heater 4a is arranged for a plurality of circles along the rotation direction of the glass hot bending mold 3, as shown in fig. 4, the electric heater is of a fan-shaped annular structure with a certain angle, and the electric heater arranged on the annular heating chamber can be regarded as an arc-shaped structure, so that the glass hot bending mold and the glass original sheet are heated more uniformly, and the difference of the influence of heat radiation caused by the difference of positions is compensated;
along the entrance of the glass hot-bending mold 3 in the annular heating chamber 4, the power of the electric heater 4a therein is gradually increased; the power of the electric heater in the annular heating chamber 4 is gradually increased, and the glass sheet is heated gradually, so that the glass is prevented from being rapidly heated and cracked due to nonuniform local heating.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (5)
1. The utility model provides a curved stove of heat of processing automobile rearview mirror glass which characterized in that:
the glass hot bending device comprises a rotating shaft (1a) vertically fixed on the ground, a rotating disc (1) installed on the rotating shaft (1a) through a bearing seat, a plurality of speed reducing motors (2) used for driving the rotating disc (1) to rotate, a plurality of glass hot bending molds (3) arranged on the rotating disc (1) in an annular array mode, and an annular heating chamber (4) arranged on the periphery of the rotating disc (1) and used for carrying out hot bending processing on glass raw sheets in the glass hot bending molds (3);
the inner section of the annular heating chamber (4) is a C-shaped channel, the glass hot-bending die (3) and the glass sheet are driven to pass through the C-shaped channel by the rotation of the turntable (1), an electric heater (4a) for carrying out hot-bending treatment on the glass sheet is installed at the inner top of the annular heating chamber (4), and a heat-insulating inner wall (4b) is installed on the side wall of the annular heating chamber (4); the electric heater (4a) comprises a quartz tube and an electric heating wire arranged in the quartz tube, wherein a plurality of electric heaters (4a) connected in parallel are arranged at the inner top of the annular heating chamber (4), and the electric heaters (4a) are arranged for a plurality of circles along the rotating direction of the glass hot bending mould (3) so as to uniformly heat the glass raw sheet in the glass hot bending mould (3);
the top of the annular heating chamber (4) is communicated with an air pumping pipe (5a), the air pumping pipe (5a) is communicated with a high-temperature resistant air pump (5), and the hot original air in the annular heating chamber (4) is conveyed to a preheating area of the glass original sheet through an exhaust pipe (5 b).
2. The hot bending furnace for processing automobile rearview mirror glass according to claim 1, wherein: the rotary table (1) comprises a bearing seat and an annular plate arranged on the bearing seat through a plurality of connecting frames.
3. The hot bending furnace for processing automobile rearview mirror glass according to claim 2, wherein: and the turntable (1) is provided with a heat-insulating brick (3a) at the bottom of the glass hot bending die (3).
4. The hot bending furnace for processing automobile rearview mirror glass according to claim 1, wherein: the heat-insulating inner wall (4b) is a refractory heat-insulating brick, wherein a through gap is reserved between the heat-insulating inner wall (4b) and the rotary disc (1).
5. The hot bending furnace for processing automobile rearview mirror glass according to claim 1, wherein: along the inlet of the glass hot bending mould (3) in the annular heating chamber (4), the power of the electric heater (4a) therein is gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122766072.5U CN216377914U (en) | 2021-11-09 | 2021-11-09 | Hot bending furnace for processing automobile rearview mirror glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122766072.5U CN216377914U (en) | 2021-11-09 | 2021-11-09 | Hot bending furnace for processing automobile rearview mirror glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216377914U true CN216377914U (en) | 2022-04-26 |
Family
ID=81251221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122766072.5U Active CN216377914U (en) | 2021-11-09 | 2021-11-09 | Hot bending furnace for processing automobile rearview mirror glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216377914U (en) |
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2021
- 2021-11-09 CN CN202122766072.5U patent/CN216377914U/en active Active
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