CN103358537B - Plastic sheet pneumatic thermoforming machine temperature acquisition control system and plastic sheet pneumatic thermoforming machine - Google Patents
Plastic sheet pneumatic thermoforming machine temperature acquisition control system and plastic sheet pneumatic thermoforming machine Download PDFInfo
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- CN103358537B CN103358537B CN201310304860.XA CN201310304860A CN103358537B CN 103358537 B CN103358537 B CN 103358537B CN 201310304860 A CN201310304860 A CN 201310304860A CN 103358537 B CN103358537 B CN 103358537B
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Abstract
A kind of plastic sheet pneumatic thermoforming machine temperature acquisition control system, comprises temperature collect module, gathers the temperature being positioned at the sheet material in mould front, and send temperature data; Control circuit, receives the laggard row relax of temperature data, sends thermal control signals; Heating arrangements, receives thermal control signals, heats sheet material.A kind of plastic sheet pneumatic thermoforming machine comprises frame, sheet conveying mechanism, shaping mechanism, temperature acquisition control system, described sheet conveying mechanism, said temperature acquisition control system, shaping mechanism are arranged in frame respectively, described shaping mechanism comprises die station, mould, lower die station, lower die station elevating mechanism, described upper die station is arranged in frame, described mould is arranged on die station bottom, described lower die station elevating mechanism is arranged in frame, and described lower die station is arranged on lower die station elevating mechanism top.The present invention's beneficial effect is against existing technologies that the temperature data of collection is more accurate.
Description
Technical field
The present invention relates to a kind of temperature acquisition control system and plastic sheet pneumatic thermoforming machine of heater of plastic sheet pneumatic thermoforming machine, gathered the temperature of the heater of plastic sheet pneumatic thermoforming machine by temp measuring system more specifically to a kind of and temperature controlled plastic sheet pneumatic thermoforming machine temperature acquisition control system carried out to the heater of plastic sheet pneumatic thermoforming machine and adopts the plastic sheet pneumatic thermoforming machine of this temperature acquisition control system.
Background technology
The temperature control system of traditional plastic sheet pneumatic thermoforming machine generally adopts thermocouple probe directly to gather the temperature data of heating tiles immediate vicinity, then by BTC temperature control modules, the temperature data according to the heating tiles immediate vicinity collected carries out temperature control.
As shown in Figure 3, described plastic sheet pneumatic thermoforming machine generally includes frame 4 ＇, shaping mechanism 1 ＇, sheet conveying mechanism 3 ＇, thermocouple probe and two heater 2 ＇, described thermocouple probe is arranged on heater 2 ＇ usually, directly connects heater 2 ＇.And the operation principle of described thermocouple probe is welded together by two kinds of different metallic conductors, form closed-loop path, as produced the temperature difference in welding ends (i.e. measuring junction) heating, then will produce thermo-electromotive force in the loop, this kind of phenomenon is called Sai Beier effect (Seebeck-effect).As the other end (i.e. reference edge) temperature kept certain (being generally 0 DEG C), so the thermo-electromotive force in loop then becomes the monotropic function of measuring junction temperature.
Due to the temperature that the temperature data adopting aforesaid way to collect is near heater 2 ＇, a segment distance is still had between the electric furnace of heater 2 ＇ and mould, actually pass the conduction of the media such as air, temperature data near heater 2 ＇ that thermocouple probe collects, time shaping with reality, the temperature difference of sheet forming region 4 ＇ is very far away, and in different geographical, under the impact of the factors such as different air pressure, the change of sheet forming region 4 ＇ temperature can not be reflected on the temperature data that gathers and in time, the temperature data that aforesaid way collects has obvious hysteresis quality.
Summary of the invention
Technical problem to be solved by this invention is the inaccurate shortcoming of temperature data gathered for prior art, a kind of plastic sheet pneumatic thermoforming machine temperature acquisition control system is provided, the temperature data degree of accuracy that this plastic sheet pneumatic thermoforming machine temperature acquisition control system gathers is higher, closer to the actual temperature of sheet material when shaping.The technical scheme adopted is as follows:
A kind of plastic sheet pneumatic thermoforming machine temperature acquisition control system, is characterized in that:
Comprise
Temperature collect module, gathers the temperature being positioned at the sheet material in mould front (when namely sheet material will enter mould), and sends temperature data;
Control circuit, receives the laggard row relax of temperature data, sends thermal control signals;
Heating arrangements, receives thermal control signals, heats sheet material.
Preferably scheme, described temperature collect module is that infrared ray adopts temperature probe.Infrared ray is adopted temperature probe and is not contacted with measurand, and carries out heat exchange by heat radiation, and it has the higher thermometric upper limit and very little thermal inertia, can reach signa, therefore is convenient to measure the temperature of moving object and fast-changing temperature.Because the size of infrared radiation energy of object and the distribution of wavelength thereof and its surface temperature have very close relationship, therefore by the measurement to the infrared energy of object self radiation, its surface temperature just can be measured exactly.
The application is object further, and be to provide a kind of plastic sheet pneumatic thermoforming machine adopting said temperature acquisition control system, the technical scheme of employing is as follows:
Described plastic sheet pneumatic thermoforming machine comprises frame, sheet conveying mechanism, shaping mechanism, temperature acquisition control system, described sheet conveying mechanism, temperature acquisition control system, shaping mechanism is arranged in frame respectively, described shaping mechanism comprises die station, mould, lower die station, lower die station elevating mechanism, described upper die station is arranged in frame, described mould is arranged on die station bottom, described lower die station elevating mechanism is arranged in frame, described lower die station is arranged on lower die station elevating mechanism top, it is characterized in that: described temperature acquisition control system comprises
Temperature collect module, gathers the temperature being positioned at the sheet material in mould front (when namely sheet material will enter mould), and sends temperature data;
Control circuit, receives the laggard row relax of temperature data, sends thermal control signals;
Heating arrangements, receives thermal control signals, heats sheet material.
Preferably scheme, described plastic sheet pneumatic thermoforming machine also comprises installing rack, and described installing rack one end is fixed in frame, and described temperature collect module is arranged on the installing rack other end, and described temperature collect module is positioned at the front of mould bottom.
More excellent scheme, the spacing range of described temperature collect module and mould is 0.5-3 millimeter.
Preferably scheme, described temperature collect module adopts infrared ray to adopt temperature probe.
Preferably scheme, described heating arrangements comprises two hot plate, and described two hot plate lay respectively at above and below sheet conveying mechanism, and two hot plate are all positioned at mould front.
The present invention's beneficial effect is against existing technologies, due to temperature collect module collection is the temperature of the sheet material being positioned at mould front, and the temperature data therefore gathered is more accurate; And temperature collect module adopts infrared ray to adopt temperature probe, therefore infrared ray adopts temperature probe without the need to contacting with measurand, just can measure the temperature of moving object and fast-changing temperature more accurately.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of plastic sheet pneumatic thermoforming machine temperature acquisition control system in the embodiment of the present invention 1;
Fig. 2 is the structural representation of plastic sheet pneumatic thermoforming machine in embodiment 1;
Fig. 3 is the structural representation of prior art plastic sheet pneumatic thermoforming machine.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, the plastic sheet pneumatic thermoforming machine temperature acquisition control system in the present embodiment, comprises
Temperature collect module, gathers the temperature being positioned at the sheet material in mould front (when namely sheet material will enter mould), and sends temperature data;
Control circuit, receives the laggard row relax of temperature data, sends thermal control signals;
Heating arrangements, receives thermal control signals, heats sheet material.
Described temperature collect module adopts infrared ray to adopt temperature probe.Infrared ray is adopted temperature probe and is not contacted with measurand, and carries out heat exchange by heat radiation, and it has the higher thermometric upper limit and very little thermal inertia, can reach signa, therefore is convenient to measure the temperature of moving object and fast-changing temperature.Because the size of infrared radiation energy of object and the distribution of wavelength thereof and its surface temperature have very close relationship, therefore by the measurement to the infrared energy of object self radiation, its surface temperature just can be measured exactly.
As shown in Figure 2, a kind of plastic sheet pneumatic thermoforming machine adopting said temperature acquisition control system, comprise frame 1, sheet conveying mechanism 2, shaping mechanism, temperature acquisition control system, described sheet conveying mechanism 2, temperature acquisition control system, shaping mechanism is arranged in frame 1 respectively, described shaping mechanism comprises die station 3, mould 4, lower die station 5, lower die station elevating mechanism 6, described upper die station 3 is arranged in frame 1, described mould 4 is arranged on die station 3 bottom, described lower die station elevating mechanism 6 is arranged in frame 1, described lower die station 5 is arranged on lower die station elevating mechanism 6 top, described temperature acquisition control system comprises
Temperature collect module, gathers the temperature being positioned at the sheet material in mould 4 front (when namely sheet material will enter mould 4), and sends temperature data;
Control circuit, receives the laggard row relax of temperature data, sends thermal control signals;
Heating arrangements, receives thermal control signals, heats sheet material.
Described temperature collect module is that infrared ray adopts temperature probe 8.
Described plastic sheet pneumatic thermoforming machine also comprises installing rack 7, and described installing rack 7 one end is fixed in frame 1, and described infrared ray is adopted temperature probe 8 and is arranged on installing rack 7 other end, and described infrared ray adopts the front that temperature probe 8 is positioned at mould 4 bottom.
It is 0.5 millimeter with the spacing range of mould 4 that described infrared ray adopts temperature probe 8.
Described heating arrangements comprises two hot plate 9, and described two hot plate 9 lay respectively at above and below sheet conveying mechanism 2, and two hot plate 9 are all positioned at mould 4 front.
Embodiment 2
Plastic sheet pneumatic thermoforming machine in the present embodiment and the difference of embodiment 1 are:
It is 3 millimeters with the spacing range of mould 4 that described infrared ray adopts temperature probe 8.
Embodiment 3
Plastic sheet pneumatic thermoforming machine in the present embodiment and the difference of embodiment 1 are:
It is 1.5 millimeters with the spacing range of mould 4 that described infrared ray adopts temperature probe 8.
Claims (3)
1. a plastic sheet pneumatic thermoforming machine, comprise frame, sheet conveying mechanism, shaping mechanism, temperature acquisition control system, described sheet conveying mechanism, temperature acquisition control system, shaping mechanism is arranged in frame respectively, described shaping mechanism comprises die station, mould, lower die station, lower die station elevating mechanism, described upper die station is arranged in frame, described mould is arranged on die station bottom, described lower die station elevating mechanism is arranged in frame, described lower die station is arranged on lower die station elevating mechanism top, it is characterized in that: described temperature acquisition control system comprises
Temperature collect module, gathers the temperature be positioned at when mould front sheet material will enter mould, and sends temperature data;
Control circuit, receives the laggard row relax of temperature data, sends thermal control signals;
Heating arrangements, receives thermal control signals, heats sheet material;
The spacing range of described temperature collect module and mould is 0.5-3 millimeter;
Described temperature collect module adopts infrared ray to adopt temperature probe.
2. plastic sheet pneumatic thermoforming machine as claimed in claim 1, it is characterized in that: described plastic sheet pneumatic thermoforming machine also comprises installing rack, described installing rack one end is fixed in frame, described temperature collect module is arranged on the installing rack other end, and described temperature collect module is positioned at the front of mould bottom.
3. plastic sheet pneumatic thermoforming machine as claimed in claim 1, it is characterized in that: described heating arrangements comprises two hot plate, described two hot plate lay respectively at above and below sheet conveying mechanism, and two hot plate are all positioned at mould front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304860.XA CN103358537B (en) | 2013-07-19 | 2013-07-19 | Plastic sheet pneumatic thermoforming machine temperature acquisition control system and plastic sheet pneumatic thermoforming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304860.XA CN103358537B (en) | 2013-07-19 | 2013-07-19 | Plastic sheet pneumatic thermoforming machine temperature acquisition control system and plastic sheet pneumatic thermoforming machine |
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| CN103358537A CN103358537A (en) | 2013-10-23 |
| CN103358537B true CN103358537B (en) | 2016-01-20 |
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| CN111227962B (en) * | 2020-02-26 | 2021-11-16 | 浙江隐齿丽医学技术有限公司 | Film pressing control system and method for preparing shell-shaped tooth appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604024A (en) * | 1983-06-22 | 1985-01-10 | Nippon Zanpatsuku Kk | Thermoforming process of thermoplastic synthetic resin sheet |
| CN202006581U (en) * | 2010-11-27 | 2011-10-12 | 郑永勤 | Heating device for heat forming machine |
| CN102601987A (en) * | 2012-03-17 | 2012-07-25 | 广东达诚机械有限公司 | Temperature control method and system of air-pressure thermoforming machine |
| CN103171143A (en) * | 2013-03-27 | 2013-06-26 | 广东金兴机械有限公司 | Multi-station numerical control thermal forming machine |
| CN203449594U (en) * | 2013-07-19 | 2014-02-26 | 广东达诚机械有限公司 | Temperature collecting control system and pneumatic plastic sheet thermoforming machine with same |
-
2013
- 2013-07-19 CN CN201310304860.XA patent/CN103358537B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS604024A (en) * | 1983-06-22 | 1985-01-10 | Nippon Zanpatsuku Kk | Thermoforming process of thermoplastic synthetic resin sheet |
| CN202006581U (en) * | 2010-11-27 | 2011-10-12 | 郑永勤 | Heating device for heat forming machine |
| CN102601987A (en) * | 2012-03-17 | 2012-07-25 | 广东达诚机械有限公司 | Temperature control method and system of air-pressure thermoforming machine |
| CN103171143A (en) * | 2013-03-27 | 2013-06-26 | 广东金兴机械有限公司 | Multi-station numerical control thermal forming machine |
| CN203449594U (en) * | 2013-07-19 | 2014-02-26 | 广东达诚机械有限公司 | Temperature collecting control system and pneumatic plastic sheet thermoforming machine with same |
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Address after: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee after: Guangdong Dacheng Technology Co., LTD Address before: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee before: Guangdong Designer Machinery Co., Ltd. |
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Address after: 7 / F, management committee building, Jinping private science and Technology Park, middle section of Da Xue Road, Shantou City, Guangdong Province Patentee after: Guangdong Dacheng Technology Co.,Ltd. Address before: Lu Shengping Industrial Zone Jinping District 515041 Guangdong city of Shantou province No. 28 Patentee before: GUANGDONG DESIGNER TECHNOLOGY Co.,Ltd. |
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