CN214528697U - Heating plate and heating device for 3D glass hot bending machine and 3D glass hot bending machine - Google Patents
Heating plate and heating device for 3D glass hot bending machine and 3D glass hot bending machine Download PDFInfo
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- CN214528697U CN214528697U CN202120099280.1U CN202120099280U CN214528697U CN 214528697 U CN214528697 U CN 214528697U CN 202120099280 U CN202120099280 U CN 202120099280U CN 214528697 U CN214528697 U CN 214528697U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 269
- 239000011521 glass Substances 0.000 title claims abstract description 56
- 238000013003 hot bending Methods 0.000 title claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 3
- 238000009529 body temperature measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
A heating plate for a 3D glass hot bending machine, a heating device and the 3D glass hot bending machine comprise a heating plate base body, 2N heating elements and N temperature sensors which are distributed along the length direction of the heating plate base body, wherein N is more than or equal to 2, the 2N heating elements are symmetrically arranged relative to the appointed central line of the heating plate base body, the N temperature sensors are respectively arranged corresponding to any N heating elements in the 2N heating elements, the arrangement of any two temperature sensors is asymmetrical relative to the appointed central line of the heating plate base body, any two heating elements which are symmetrical relative to the appointed central line of the heating plate base body form a heating element group which is synchronously regulated and controlled, and by using the heating plate, the temperature of the corresponding heating element group can be accurately and efficiently monitored by the temperature control device according to temperature signals measured by each temperature sensor, so as to accurately and efficiently monitor the temperatures of different heating areas on the heating plate and carry out multi-point temperature control, the surface temperature of the heating plate is more uniform.
Description
Technical Field
The utility model relates to a curved equipment of 3D glass heat especially relates to a hot plate, heating device and the hot bender of 3D glass for the hot bender of 3D glass.
Background
The 3D glass is widely applied to equipment such as smart phones and computer tablets due to the characteristics of lightness, thinness, attractiveness and good hand feeling. The glass hot bending technology is a mature 3D glass processing method. A piece of glass original sheet needs to be preheated, formed, slowly cooled and cooled to finally form the 3D curved glass. Wherein, the three steps of preheating, forming and slow cooling all involve heating. In a 3D glass hot bender, a heating plate heats the mold and glass blank by means of heat conduction. The temperature of the heating plate surface is extremely important to affect the final 3D glass product.
The temperature control mode of the heating plate of the 3D glass hot bending machine which is commonly used at present is single-point temperature control, namely, a control device controls the power of a plurality of heating rods according to temperature detection signals at a single position. The single-point temperature control mode is synchronous to the control modes of a plurality of heating rods. When the middle temperature of the heating plate is higher, the control device can reduce the power of the heating rod to reduce the middle temperature of the heating plate, but the temperatures of the two sides of the heating plate are reduced at the moment. This results in an uneven surface temperature of the heating plate, which affects the heating effect of the glass.
It is to be noted that the information disclosed in the above background section is only for understanding the background of the present application and thus may include information that does not constitute prior art known to a person of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes the problem that above-mentioned background art exists, provides a hot plate multiple spot temperature regulating device and the hot bender of 3D glass for the hot bender of 3D glass.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the heating plate for the 3D glass hot bending machine comprises a heating plate base body, and further comprises 2N heating elements and N temperature sensors which are distributed along the length direction of the heating plate base body, wherein N is larger than or equal to 2, the 2N heating elements are symmetrically arranged around a specified central line of the heating plate base body, the N temperature sensors are respectively arranged corresponding to any N heating elements in the 2N heating elements, the arrangement of any two temperature sensors is asymmetric around the specified central line of the heating plate base body, and any two heating elements which are symmetric around the specified central line of the heating plate base body form a heating element group which is synchronously regulated and controlled.
Further, the heating element extends along the width direction of the heating plate base body.
Further, the temperature sensor is a thermocouple.
A heating plate for a 3D glass hot bending machine comprises a heating plate base body, 2N +1 heating elements and N temperature sensors, wherein the heating elements and the N temperature sensors are distributed along the length direction of the heating plate base body, N is more than or equal to 2, wherein 2N heating elements of the 2N +1 heating elements except for the heating element located at the center are symmetrically arranged with respect to a designated center line of the heating plate base body, the N temperature sensors are provided corresponding to arbitrary N heating elements among the 2N heating elements respectively, and the arrangement of any two temperature sensors is asymmetric about a given center line of the heating plate base body, any two heating elements symmetrical about the designated central line of the heating plate substrate form a heating element group which is synchronously regulated, and the heating element positioned in the center is classified into the heating element group adjacent to the heating element group.
The heating plate for the 3D glass hot bending machine comprises a heating plate base body, and further comprises 2N +1 heating elements and N +1 temperature sensors which are distributed along the length direction of the heating plate base body, wherein N is larger than or equal to 1, 2N heating elements except the heating element positioned at the center in the 2N +1 heating elements are symmetrically arranged around the appointed central line of the heating plate base body, N temperature sensors in the N +1 temperature sensors are respectively arranged corresponding to any N heating elements except the heating element positioned at the center in the 2N +1 heating elements, the rest one temperature sensor is arranged corresponding to the heating element positioned at the center, the arrangement of any two temperature sensors is asymmetrical around the appointed central line of the heating plate base body, and any two heating elements symmetrical around the appointed central line of the heating plate base body form a heating element group which is synchronously regulated and controlled The centrally located heating elements individually form a set of heating elements.
Further, N is more than or equal to 2.
The utility model provides a heating device for be used for 3D glass hot bender, includes be used for 3D glass hot bender's hot plate and at least one temperature control device, at least one temperature control device basis the temperature signal that temperature sensor surveyed carries out the accuse temperature to the heating element group that corresponds.
Further, the at least one temperature control device comprises a plurality of temperature control devices with the same number as the temperature sensors, each temperature control device comprises a temperature control instrument and a power regulator, the temperature control instruments are connected with the corresponding temperature sensors, and the power regulators are connected with the heating element groups corresponding to the temperature sensors.
Furthermore, the at least one temperature control device is a total temperature control device, and the total temperature control device is connected with the temperature sensors through a plurality of temperature signal acquisition circuits and connected with the heating element groups through a plurality of temperature control circuits.
A3D glass hot bending machine comprises the heating device for the 3D glass hot bending machine.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a hot plate and heating device for hot bender of 3D glass overcomes the defect of traditional single-point accuse temperature mode, has improved the even control effect of the hot bender heating plate surface temperature of 3D glass effectively. Compared with the prior art, the utility model discloses a temperature that is used for heating device of 3D glass hot bender to monitor different heating regions on the hot plate accurately and high-efficiently, controls the heating element of different positions according to the temperature that records more accurately for the final temperature on hot plate surface is more even, can show the hot bending forming quality of promotion 3D glass. Moreover, the utility model discloses optimize temperature measurement and accuse temperature mode, need not set up a temperature sensor alone to every heating element and kept the accurate nature of temperature measurement and accuse temperature again, the cost is reduced effectively.
Drawings
Fig. 1 is a schematic structural diagram of a heating device for a 3D glass hot bending machine according to an embodiment of the present invention.
Fig. 2 is a block diagram of a temperature control system of a heating device according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed or coupled or communicating function.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and 2, in one embodiment, a heating device for a 3D glass hot bending machine includes a heating plate and at least one temperature control device, the heating plate includes a heating plate base 1, 2N heating elements 3 distributed along a length direction of the heating plate base 1, and N temperature sensors 2, N ≧ 2 (N is 3 in the example of fig. 2), wherein the 2N heating elements 3 are symmetrically disposed about a designated center line of the heating plate base 1, the N temperature sensors 2 are respectively disposed corresponding to any N heating elements 3 of the 2N heating elements 3, and an arrangement of any two temperature sensors 2 is asymmetric about the designated center line of the heating plate base 1, wherein any two heating elements symmetric about the designated center line of the heating plate base 1 constitute a heating element group which is synchronously regulated, and the at least one temperature control device controls the temperature of the corresponding heating element group according to the temperature signals measured by the N temperature sensors 2.
Herein, a certain temperature sensor is disposed corresponding to a certain heating element, which means that the temperature sensor is disposed such that the temperature detection result of the heating region of the heating element is more accurate than that of other temperature sensors, and particularly, but not limited to, the temperature sensor is relatively closest to the heating element on the heating plate.
It is to be understood that the designated centerline referred to herein is custom, and may or may not be the actual physical centerline of the heater plate base. For example, the designated centerline may be the centerline of a region on the heater plate, but not necessarily the centerline of the heater plate as a whole.
It will be appreciated that the heating plate may also comprise further heating elements and further temperature sensors, which may or may not be arranged in the manner described above in connection with the present embodiment. The invention relates to a heating element and a temperature sensor, which can be combined together to form a heating element and a temperature sensor.
The temperature sensor 2 may be a thermocouple. It should be understood that the thermocouple may be replaced with other types of temperature sensors.
In a preferred embodiment, the heating element 3 extends in the width direction of the heating plate base.
In a preferred embodiment, the heating element 3 is a heating rod.
In some embodiments, the at least one temperature control device comprises N temperature control devices, each temperature control device comprises a temperature control instrument 4 and a power regulator 5, the temperature control instrument 4 is connected with the temperature sensor 2, and the power regulator 5 is connected with the heating element group corresponding to the temperature sensor 2.
It will be appreciated that it is not essential that the temperature control means be provided in one-to-one correspondence with the groups of heating elements. In other embodiments, a total temperature control device may be adopted, and the total temperature control device is connected to the N temperature sensors 2 through N temperature signal acquisition lines and is connected to each heating element group through N temperature control lines.
In another embodiment, the heating device for the 3D glass hot bending machine comprises a heating plate and at least one temperature control device, wherein the heating plate comprises a heating plate base body 1, 2N +1 heating elements 3 and N temperature sensors 2, wherein the heating elements 3 are distributed along the length direction of the heating plate base body 1, N is more than or equal to 2, 2N heating elements 3 except the heating element 3 positioned at the center in the 2N +1 heating elements 3 are symmetrically arranged about a specified central line of the heating plate base body 1, the N temperature sensors 2 are respectively arranged corresponding to any N heating elements 3 in the 2N heating elements 3, the arrangement of any two temperature sensors 2 is asymmetrical about the specified central line of the heating plate base body 1, and any two heating elements symmetrical about the specified central line of the heating plate base body 1 form a heating element group which is synchronously regulated and controlled, and the heating element 3 positioned in the center is classified into the heating element group adjacent to the heating element group, and the at least one temperature control device controls the temperature of the corresponding heating element group according to the temperature signals measured by the N temperature sensors 2.
It will be appreciated that the heating plate may also comprise further heating elements and further temperature sensors, which may or may not be arranged in the manner described above in connection with the present embodiment. The invention relates to a heating element and a temperature sensor, which can be combined together to form a heating element and a temperature sensor.
In still another embodiment, a heating device for a 3D glass hot bending machine comprises a heating plate and at least one temperature control device, wherein the heating plate comprises a heating plate base body 1, 2N +1 heating elements 3 and N +1 temperature sensors 2 distributed along the length direction of the heating plate base body 1, N is larger than or equal to 1, wherein 2N heating elements 3 except a heating element 3 positioned at the center in the 2N +1 heating elements 3 are symmetrically arranged about a specified central line of the heating plate base body 1, N temperature sensors 2 in the N +1 temperature sensors 2 are respectively arranged corresponding to any N heating elements 3 except the heating element 3 positioned at the center in the 2N +1 heating elements 3, and the rest one temperature sensor 2 is arranged corresponding to the heating element 3 positioned at the center, and the arrangement of any two temperature sensors 2 is asymmetric about the appointed central line of the heating plate base body 1, wherein any two heating elements symmetric about the appointed central line of the heating plate base body 1 form a heating element group which is synchronously regulated and controlled, the heating element 3 positioned in the center independently forms a heating element group, and the at least one temperature control device controls the temperature of the corresponding heating element group according to the temperature signals measured by the N +1 temperature sensors 2.
In a particular embodiment, N may be 1, i.e. with 3 heating elements and two temperature sensors. N may be a number of 2 or more.
It will be appreciated that the heating plate may also comprise further heating elements and further temperature sensors, which may or may not be arranged in the manner described above in connection with the present embodiment. The invention relates to a heating element and a temperature sensor, which can be combined together to form a heating element and a temperature sensor.
The above embodiment of the utility model provides a heating device for be used for 3D glass hot bender overcomes the defect of traditional single-point accuse temperature mode, has improved the even control effect of 3D glass hot bender heating plate surface temperature effectively. Compared with the prior art, the embodiment of the utility model provides a temperature that is used for heating device of 3D glass hot bender to monitor each heating region on the hot plate accurately and high-efficiently, controls the heating element of different positions more accurately according to the temperature that records for the final temperature on hot plate surface is more even, thereby can show and promote 3D glass hot bending shaping quality. Moreover, the utility model discloses optimize temperature measurement and accuse temperature mode, need not set up a temperature sensor alone to every heating element and kept the accurate nature of temperature measurement and accuse temperature again, the cost is reduced effectively.
In an embodiment of a further aspect, a heating plate of any of the preceding embodiments is provided.
In an embodiment of a further aspect, a 3D glass hot bender is provided, comprising a heating device for a 3D glass hot bender of any of the preceding embodiments.
Specific embodiments and applications of the present invention are described below by way of example.
As shown in fig. 1 and fig. 2, this embodiment provides a heating device of a 3D glass hot bending machine, which comprises a heating plate and three sets of temperature control devices, wherein the heating plate comprises a heating plate base 1 and six heating rods (heating elements 3), and three-point temperature control is performed by the three sets of temperature control devices. The six heating rods are divided into three groups according to the distance from the center of the heating plate base body 1, and two heating rods in the three groups are symmetrically distributed about the designated central line of the heating plate (in this case, the actual central line of the heating plate base body 1). Each group of temperature control device comprises a thermocouple (temperature sensor 2), a temperature controller 4 and a power regulator 5, and is used for measuring and controlling the temperature of the three groups of heating rods. The three thermocouples respectively transmit the temperatures measured by the three groups of heating rods to the three temperature controllers, and the temperature controllers control the power regulators to regulate the powers of the three groups of heating rods. The thermocouple is K type and can measure the high temperature of 1000 ℃.
As shown in FIG. 2, the heating device of the 3D glass hot bending machine of the embodiment integrally forms a negative feedback system. The thermocouple in the heating plate base body 1 of the 3D glass hot bending machine is a temperature measuring device, and transmits the measured temperature to the temperature controller 4. The temperature controller 4 can generate a control signal according to the measured temperature and by referring to the set temperature, control the output of the power regulator 5, and further regulate the power of the heating rod, thereby realizing the control of the surface temperature of the heating plate and the uniformity of the temperature at different positions on the surface of the heating plate. The temperature control process of the temperature controller may use a conventional PID algorithm.
While the drawings show only one representative example in detail, those skilled in the art can readily devise many other varied embodiments that still incorporate the teachings herein.
The background section of the present invention may contain background information related to the problems or the environment of the present invention and is not necessarily descriptive of the prior art. Accordingly, the inclusion in the background section is not an admission of prior art by the applicant.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the claims.
Claims (10)
1. The heating plate for the 3D glass hot bending machine comprises a heating plate base body and is characterized by further comprising 2N heating elements and N temperature sensors, wherein the 2N heating elements and the N temperature sensors are distributed along the length direction of the heating plate base body, N is larger than or equal to 2, the 2N heating elements are symmetrically arranged about a specified central line of the heating plate base body, the N temperature sensors are respectively arranged corresponding to any N heating elements in the 2N heating elements, the arrangement of any two temperature sensors is asymmetric about the specified central line of the heating plate base body, and any two heating elements symmetric about the specified central line of the heating plate base body form a heating element group which is synchronously regulated and controlled.
2. The heating plate for a 3D glass hot bending machine according to claim 1, wherein the heating element is arranged to extend along a width direction of the heating plate substrate.
3. The heating plate for a 3D glass bending machine according to claim 1 or 2, wherein the temperature sensor is a thermocouple.
4. A heating plate for a 3D glass hot bending machine comprises a heating plate base body and is characterized by further comprising 2N +1 heating elements and N temperature sensors which are distributed along the length direction of the heating plate base body, wherein N is more than or equal to 2, wherein 2N heating elements of the 2N +1 heating elements except for the heating element located at the center are symmetrically arranged with respect to a designated center line of the heating plate base body, the N temperature sensors are provided corresponding to arbitrary N heating elements among the 2N heating elements respectively, and the arrangement of any two temperature sensors is asymmetric about a given center line of the heating plate base body, any two heating elements symmetrical about the designated central line of the heating plate substrate form a heating element group which is synchronously regulated, and the heating element positioned in the center is classified into the heating element group adjacent to the heating element group.
5. The heating plate for the 3D glass hot bending machine comprises a heating plate base body and is characterized by further comprising 2N +1 heating elements and N +1 temperature sensors, wherein the 2N +1 heating elements and the N +1 temperature sensors are distributed along the length direction of the heating plate base body, N is larger than or equal to 1, 2N heating elements except a heating element located at the center in the 2N +1 heating elements are symmetrically arranged relative to a specified central line of the heating plate base body, N temperature sensors in the N +1 temperature sensors are respectively arranged corresponding to any N heating elements except the heating element located at the center in the 2N +1 heating elements, the rest one temperature sensor is arranged corresponding to the heating element located at the center, the arrangement of any two temperature sensors is asymmetrical relative to the specified central line of the heating plate base body, and any two heating elements symmetrical relative to the specified central line of the heating plate base body form a synchronous heating plate And the heating elements positioned in the center individually form a heating element group.
6. The heating plate for a 3D glass hot bending machine according to claim 5, wherein N.gtoreq.2.
7. A heating device for a 3D glass hot bending machine, which is characterized by comprising the heating plate for the 3D glass hot bending machine according to any one of claims 1 to 6 and at least one temperature control device, wherein the at least one temperature control device controls the temperature of the corresponding heating element group according to the temperature signal measured by the temperature sensor.
8. The heating apparatus according to claim 7, wherein the at least one temperature control device comprises a plurality of temperature control devices in an equal number to the temperature sensors, each temperature control device comprising a temperature control instrument connected to the corresponding temperature sensor and a power regulator connected to the group of heating elements corresponding to the temperature sensor.
9. The heating device for a 3D glass hot bender according to claim 7, wherein the at least one temperature control device is a total temperature control device, the total temperature control device is connected to the temperature sensors through multiple temperature signal acquisition lines and connected to the heating element sets through multiple temperature control lines.
10. A 3D glass bending machine, characterized by comprising a heating device for a 3D glass bending machine according to any of claims 7 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120099280.1U CN214528697U (en) | 2021-01-14 | 2021-01-14 | Heating plate and heating device for 3D glass hot bending machine and 3D glass hot bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120099280.1U CN214528697U (en) | 2021-01-14 | 2021-01-14 | Heating plate and heating device for 3D glass hot bending machine and 3D glass hot bending machine |
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| Publication Number | Publication Date |
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| CN214528697U true CN214528697U (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120099280.1U Active CN214528697U (en) | 2021-01-14 | 2021-01-14 | Heating plate and heating device for 3D glass hot bending machine and 3D glass hot bending machine |
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2021
- 2021-01-14 CN CN202120099280.1U patent/CN214528697U/en active Active
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