CN103128392A - Multiple temperature zone heating control system of desk type reflow soldering machine - Google Patents
Multiple temperature zone heating control system of desk type reflow soldering machine Download PDFInfo
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- CN103128392A CN103128392A CN 201110380619 CN201110380619A CN103128392A CN 103128392 A CN103128392 A CN 103128392A CN 201110380619 CN201110380619 CN 201110380619 CN 201110380619 A CN201110380619 A CN 201110380619A CN 103128392 A CN103128392 A CN 103128392A
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Abstract
The invention discloses a multiple temperature zone heating control system of a desk type reflow soldering machine. The multiple temperature zone heating control system of the desk type reflow soldering machine comprises a controller and a man-machine interaction unit which is connected with the controller and used for achieving man-machine interaction. An input end of the controller is connected with multiple temperature sensors which are evenly distributed on the reflow soldering machine and used for detecting temperature of all working phases of a preheating section, a heating section, a welding section, a holding section and a cooling section of reflow welding. An output end of the controller is connected with a solid-state relay which is used for adjusting heating power of an infrared heating pipe of the reflow soldering, and an output end of the solid-state relay is connected with the infrared heating pipe. The multiple temperature zone heating control system of the desk type reflow soldering machine is simple in structure, reasonable in design, convenient to achieve, low in achieving cost, fast and convenient to operate, high in control stability, high in accuracy, high in automation, strong in practical application, good in use effect, and convenient to popularize and use, can improve welding efficiency of a PCB, and simultaneously improves welding quality of the PCB.
Description
Technical field
The invention belongs to the automatic control technology field, especially relate to a kind of many warm areas of table type backflow welder heating control system.
Background technology
Reflow Soldering also claims reflow welding, is the literal translation of English Re-flow Soldreing.Reflow Soldering is by again melting the scolder of allocating in advance on the printed board pad, realizing the pin of surface-assembled components and parts or machinery and the electrical connection between welding end and printed board.Before Reflow Soldering, with screen printer, suitable, appropriate solder(ing) paste is bitten on the pad of PCB, with chip mounter, the SMC/SMD components and parts are attached on the relevant position, the circuit board that posts components and parts is sent in Reflow Soldering equipment, solder(ing) paste has experienced drying, preheating, thawing, wetting, cooling, and components and parts are soldered in printed board.
Reflow Soldering equipment has two class basic structures, and a class is single warm area Reflow Soldering, and another kind of is the Reflow Soldering of many warm areas.Single warm area reflow soldering is to control warm area temperature temporal evolution according to thermal reflow profile, and pcb board is transfixion in stove.The Reflow Soldering of many warm areas is according to thermal reflow profile, brazier to be divided into the warm area of several different temperatures, realizes preheating, backflow, each process such as cooling thereby pcb board at the uniform velocity passes through each warm area.Many warm areas of reflow machine heating control system of the prior art also exists complex structure, realizes that cost is high, uses defective and the deficiencies such as operation is inconvenient, control accuracy is low, has affected the welding machine quality of pcb board.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, and a kind of many warm areas of table type backflow welder heating control system is provided, and it is simple in structure, reasonable in design, it is convenient to realize, realizes that cost is low, simple operation, control stable high, accuracy is high, automaticity is high, can be in raising pcb board welding efficiency, improve the welding quality of pcb board, practical, result of use is good, is convenient to promote the use of.
for solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: comprise controller and join with controller and be used to realize the man-machine interaction unit of man-machine interaction, the input of described controller is connected to and a plurality ofly evenly is laid on reflow machine and is used for preheating section to reflow soldering, bringing-up section, welding section, the temperature sensor that the temperature of soaking zone and each working stage of temperature descending section detects, the output of described controller is connected to for the solid-state relay of regulating reflow machine infrared heating pipe heating power, output and the infrared heating pipe of described solid-state relay are joined.
Above-mentioned a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: described controller is programmable logic controller (PLC).
Above-mentioned a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: described programmable logic controller (PLC) is Siemens S7-200PLC.
Above-mentioned a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: described man-machine interaction unit is touch LCD screen.
Above-mentioned a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: described temperature sensor is thermocouple.
Above-mentioned a kind of many warm areas of table type backflow welder heating control system, it is characterized in that: the quantity of described temperature sensor is 5～25.
The present invention compared with prior art has the following advantages:
1, the present invention join by controller, with controller and be used for realizing man-machine interaction man-machine interaction unit, be connected on a plurality of temperature sensors of controller input and the solid-state relay that is connected on controller output end and is used for adjusting reflow machine infrared heating pipe heating power consists of, simple in structure, reasonable in design, it is convenient to realize.
2, man-machine interaction unit of the present invention is touch LCD screen, intuitive display, simple operation.
3, the temperature sensor in the present invention is thermocouple, can directly be installed on reflow machine, and is easy for installation, realizes that cost is low.
4, the present invention has realized the closed-loop control of many warm areas of reflow machine heating-up temperature, can realize the zero steady state error control of temperature, control stable high, accuracy is high, automaticity is high.
5, the present invention can improve the welding quality of pcb board when improving the pcb board welding efficiency, and practical, result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, and is reasonable in design, it is convenient to realize, realize that cost is low, simple operation, control stable high, accuracy is high, automaticity is high, can improve the welding quality of pcb board when improving the pcb board welding efficiency, practical, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present invention.
Description of reference numerals:
The 1-controller; The 2-man-machine interaction unit; The 3-temperature sensor;
The 4-solid-state relay; The 5-infrared heating pipe.
The specific embodiment
As shown in Figure 1, the present invention includes controller 1 and join with controller 1 and be used to realize the man-machine interaction unit 2 of man-machine interaction, the input of described controller 1 is connected to and a plurality ofly evenly is laid on reflow machine and is used for the temperature sensor 3 that the temperature to preheating section, bringing-up section, welding section, soaking zone and each working stage of temperature descending section of reflow soldering detects, the output of described controller 1 is connected to for the solid-state relay 4 of regulating reflow machine infrared heating pipe heating power, and the output of described solid-state relay 4 and infrared heating pipe 5 are joined.
As shown in Figure 1, in the present embodiment, described controller 1 is programmable logic controller (PLC).Described programmable logic controller (PLC) is Siemens S7-200PLC.Described man-machine interaction unit 2 is touch LCD screen.Described temperature sensor 3 is thermocouple.The quantity of described temperature sensor 3 is 5～25.
operation principle of the present invention and the course of work are: operating personnel are the input control parameter on man-machine interaction unit 2, controller 1 receives from the control parameter of man-machine interaction unit 2 inputs and exports corresponding control signal to the solid-state relay 4 that is connected on its output, and controller 1 is regulated the heating power of infrared heating pipe 5 by controlling solid-state relay 4, simultaneously, evenly be laid in a plurality of temperature sensors 3 on reflow machine in real time to the preheating section of reflow soldering, bringing-up section, welding section, the temperature of soaking zone and each working stage of temperature descending section detect and with detected signal feedback to controller 1, the temperature signal that controller is exported according to a plurality of temperature sensors 3 is realized the closed-loop control to solid-state relay 4, and then realized control to infrared heating pipe 5 heating powers, make the temperature of each warm area on reflow machine satisfy the preheating section of reflow soldering, bringing-up section, welding section, the temperature requirements of soaking zone and each working stage of temperature descending section.
The present invention has realized the closed-loop control of many warm areas of reflow machine heating-up temperature, can realize the zero steady state error control of temperature, control stable high, accuracy is high, automaticity is high, can when improving the pcb board welding efficiency, improve the welding quality of pcb board.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (6)
1. many warm areas of table type backflow welder heating control system, it is characterized in that: comprise controller (1) and join with controller (1) and be used to realize the man-machine interaction unit (2) of man-machine interaction, the input of described controller (1) is connected to and a plurality ofly evenly is laid on reflow machine and is used for preheating section to reflow soldering, bringing-up section, welding section, the temperature sensor that the temperature of soaking zone and each working stage of temperature descending section detects (3), the output of described controller (1) is connected to for the solid-state relay (4) of regulating reflow machine infrared heating pipe heating power, the output of described solid-state relay (4) and infrared heating pipe (5) are joined.
2. according to a kind of many warm areas of table type backflow welder heating control system claimed in claim 1, it is characterized in that: described controller (1) is programmable logic controller (PLC).
3. according to a kind of many warm areas of table type backflow welder heating control system claimed in claim 2, it is characterized in that: described programmable logic controller (PLC) is Siemens S7-200PLC.
4. according to claim 1,2 or 3 described a kind of many warm areas of table type backflow welder heating control systems, it is characterized in that: described man-machine interaction unit (2) is touch LCD screen.
5. according to a kind of many warm areas of table type backflow welder heating control system claimed in claim 4, it is characterized in that: described temperature sensor (3) is thermocouple.
6. according to a kind of many warm areas of table type backflow welder heating control system claimed in claim 5, it is characterized in that: the quantity of described temperature sensor (3) is 5～25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380619 CN103128392A (en) | 2011-11-25 | 2011-11-25 | Multiple temperature zone heating control system of desk type reflow soldering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110380619 CN103128392A (en) | 2011-11-25 | 2011-11-25 | Multiple temperature zone heating control system of desk type reflow soldering machine |
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| CN103128392A true CN103128392A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110380619 Pending CN103128392A (en) | 2011-11-25 | 2011-11-25 | Multiple temperature zone heating control system of desk type reflow soldering machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364108A (en) * | 2013-07-02 | 2013-10-23 | 英利集团有限公司 | Welding temperature detection device, welding machine and welding temperature calibration method |
| CN105436647A (en) * | 2015-12-31 | 2016-03-30 | 深圳市振华威电子有限公司 | Automatic reflow welding machine and automatic reflow welding method |
| CN105537818A (en) * | 2016-03-07 | 2016-05-04 | 成都亨通兆业精密机械有限公司 | Automatic part welding system |
| CN105772887A (en) * | 2016-05-06 | 2016-07-20 | 东莞市科隆威自动化设备有限公司 | Multifunctional reflow soldering device and control method thereof |
| CN112872526A (en) * | 2021-01-11 | 2021-06-01 | 武汉倍普科技有限公司 | Reflow furnace stability detection method |
| CN114918520A (en) * | 2022-06-21 | 2022-08-19 | 石河子大学 | Plasma surfacing control system for preventing inner hole cracks from being generated |
-
2011
- 2011-11-25 CN CN 201110380619 patent/CN103128392A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364108A (en) * | 2013-07-02 | 2013-10-23 | 英利集团有限公司 | Welding temperature detection device, welding machine and welding temperature calibration method |
| CN105436647A (en) * | 2015-12-31 | 2016-03-30 | 深圳市振华威电子有限公司 | Automatic reflow welding machine and automatic reflow welding method |
| CN105436647B (en) * | 2015-12-31 | 2018-07-13 | 深圳市振华微电子有限公司 | Automatic Re-current welder |
| CN105537818A (en) * | 2016-03-07 | 2016-05-04 | 成都亨通兆业精密机械有限公司 | Automatic part welding system |
| CN105772887A (en) * | 2016-05-06 | 2016-07-20 | 东莞市科隆威自动化设备有限公司 | Multifunctional reflow soldering device and control method thereof |
| CN105772887B (en) * | 2016-05-06 | 2018-02-27 | 东莞市科隆威自动化设备有限公司 | A kind of Multifunctional reflux welder and its control method |
| CN112872526A (en) * | 2021-01-11 | 2021-06-01 | 武汉倍普科技有限公司 | Reflow furnace stability detection method |
| CN114918520A (en) * | 2022-06-21 | 2022-08-19 | 石河子大学 | Plasma surfacing control system for preventing inner hole cracks from being generated |
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Application publication date: 20130605 |