CN201845058U - Quick automatic detection device of heating equipment - Google Patents

Quick automatic detection device of heating equipment Download PDF

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Publication number
CN201845058U
CN201845058U CN2010206053086U CN201020605308U CN201845058U CN 201845058 U CN201845058 U CN 201845058U CN 2010206053086 U CN2010206053086 U CN 2010206053086U CN 201020605308 U CN201020605308 U CN 201020605308U CN 201845058 U CN201845058 U CN 201845058U
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China
Prior art keywords
programmable logic
loop
logic controller
contactor
coil
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Expired - Fee Related
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CN2010206053086U
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Chinese (zh)
Inventor
林启鹏
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Shantou Fuli Machine Manufacturing Co Ltd
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Individual
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Abstract

The utility model discloses a quick automatic detection device of heating equipment. The device overcomes the defects that damaged individual heating elements of the conventional heating equipment with a plurality of heating elements are difficult to find and high rejection rate of products and high waste are caused when the damaged heating elements are found. The utility model adopts the technical scheme that: the device is characterized in that the quick automatic detection device comprises a programmable controller and an analog quantity expansion module of the programmable controller, a solid relay, a contactor, an abnormality control relay, a current transformer and a starting switch; the output end of the solid relay is connected in series with a heating actuator element loop, and the input end of the solid relay is connected with the output end of the programmable controller; a main power supply loop is provided with a parallel loop; the input port of the current transformer is connected with the parallel loop, and the output end of the current transformer is connected with the input end of the module; the main contact of the contactor is connected in series with the main power supply loop and the parallel loop; a coil is connected at the output end of the programmable controller; the contact of the abnormality control relay is connected in series with an abnormality control circuit; the coil is connected at the output end of the programmable controller; and the starting switch is connected with the input end of the programmable controller.

Description

A kind of fast automatic detecting device of firing equipment
Technical field
The utility model relates to industrial automatic checkout equipment, specifically is a kind of fast automatic detecting device of firing equipment.Can be used as existing equipment from belting or extension set.
Background technology
Generally use at present in having temperature controlled firing equipment, generally have many heating executive components.When indivedual heating executive components damaged, the operator often was difficult to find.Particularly plastic processing manufacturing industry, causes abnormal reason a lot of at its complex process, even veteran personnel also are difficult in time find.Generally to wait until when big defective of product appearance or rejection rate are high and just find, cause product rejection rate height, waste very big.
Summary of the invention
Be difficult to find when existing similar indivedual heating executive components with firing equipment existence of many heating executive components damage in order to overcome, caused product rejection rate height during discovery, waste very big defective, the purpose of this utility model provides a kind of fast automatic detecting device of improved firing equipment, can overcome the defective of prior art.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of fast automatic detecting device of firing equipment, it is characterized in that: comprise Programmable Logic Controller and analog quantity expansion module thereof, several solid-state relays, two contactors, unusual pilot relay, current transducer, starting switch, wherein each solid-state relay all is serially connected in the heating executive component loop of firing equipment correspondence with its two output terminals, each solid-state relay all is connected with an output terminal of Programmable Logic Controller with an one input end, on the general supply loop in all heating executive component loops, a shunt circuit is set, the current transducer input port is connected on the described shunt circuit, the output terminal of current transducer is connected with the analog quantity input end of analog quantity expansion module, the main contacts of two contactors is serially connected in respectively on the general supply loop and described shunt circuit in all heating executive component loops, its coil is connected on two output terminals of Programmable Logic Controller, the contact of unusual pilot relay is concatenated on the unusual control circuit, its coil is connected on another output terminal of Programmable Logic Controller, and starting switch is connected on the input end of Programmable Logic Controller.
The contactor coil of technique scheme is connected to the auxiliary contact that can also be serially connected with contactor on the loop of Programmable Logic Controller output terminal, and the main contacts that auxiliary contact are in contact with it device can constitute interlocked relationship.More specifically say, wherein the main contacts of two contactors all can adopt and often open main contacts, the coil of a contactor can be serially connected in the normally closed auxiliary contact of another contactor on the loop of an output terminal of Programmable Logic Controller, the coil of another contactor can be serially connected in the normally closed auxiliary contact of previous contactor on the loop of another output terminal of Programmable Logic Controller, each contactor main contacts all with its auxiliary contact interlocking.
PORT COM on the Programmable Logic Controller of technique scheme can also be connected with monitor.
The current transducer of technique scheme can adopt perforation input type current transducer, and the input hole of current transducer is passed in described shunt circuit.
All heating executive components of the firing equipment of technique scheme are the relation of being connected in parallel, and can be provided with more than one heating executive component in each heating executive component loop.
Can be serially connected with fuse or Fuse Type switch on the heating executive component loop of technique scheme, to improve overload protective function.
The unusual control circuit of technique scheme can be the control relay circuit of a sound or a luminous warning circuit or a cut-out firing equipment power supply.
The beneficial effects of the utility model: owing to adopt PLC technique, sequence detection is one by one carried out automatically in any a plurality of heating executive components loop on the firing equipment, after converting tested alternating current to press linear scaling output DC analogue quantity signal by current transducer, the analog quantity expansion module that is transported to Programmable Logic Controller changes analog quantity into digital quantity, Programmable Logic Controller compares digital quantity value and preset value, when a certain heating executive component loop is damaged, Programmable Logic Controller is the output abnormality signal just, and by unusual pilot relay control abnormity control circuit warning reminding operator or cut-out firing equipment power supply etc., simultaneously can also will detect information transmission by the PORT COM of Programmable Logic Controller and detect demonstration to watch-dog, so when certain heating executive component loop is damaged, just can be easy to very in time detect and learn for the operator, can not cause product rejection rate height, waste very big situation; Owing to adopt current transducer, so measured value linearity height, accuracy are good as measuring element; Owing to adopt the heating executive component circuit switching element of solid-state relay, so have contactless, reliable operation, the life-span is long, noise is low, switching speed is fast and characteristics such as frequency of operation height as big electric current.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the circuit diagram of an embodiment of the utility model.Omitted the physical circuit figure of unusual control circuit among the figure.
Embodiment
With reference to Fig. 1, the fast automatic detecting device of this firing equipment, it is characterized in that: comprise Programmable Logic Controller PLC and analog quantity expansion module 6ES7 thereof, several solid-state relays SSR1, SSR2 and SSR3 etc., two contactor KM1 and KM2, unusual pilot relay KA1, current transducer GDB, starting switch SB, each solid-state relay SSR1 wherein, SSR2 or SSR3 etc. all are serially connected in a heating executive component EE1 of firing equipment correspondence with its two output terminals, in the loop such as EE2 or EE3, each solid-state relay SSR1, SSR2 or SSR3 are all with the output terminal Q0.0 of its positive input terminal and Programmable Logic Controller PLC, connection such as Q0.1 or Q0.2, at all heating executive component EE1, a shunt circuit is set on the general supply loop in loop such as EE2 or EE3, the input port B of current transducer GDB is connected on the described shunt circuit, the output terminal IZ of current transducer GDB is connected with A-with the input end A+ of analog quantity expansion module 6ES7 respectively with GND, the main contacts KM11 that often opens of contactor KM1 is serially connected in all heating executive component EE1, on general supply such as EE2 or the EE3 loop, its coil KM1 is connected on the output terminal Q0.5 of Programmable Logic Controller PLC, the main contacts KM21 that often opens of contactor KM2 is serially connected on the described shunt circuit, its coil KM2 is connected on another output terminal Q0.6 of Programmable Logic Controller PLC, the contact of unusual pilot relay KA1 is concatenated on the unusual control circuit, its coil KA1 is connected on the output terminal Q0.7 of Programmable Logic Controller PLC, and starting switch SB is connected on the input end I0.0 of Programmable Logic Controller PLC.Wherein, the model of Programmable Logic Controller PLC is 212-1AB23-OXB8 CPU222, and the model of analog quantity expansion module 6ES7 is 231-OHC22-OXA8; Contactor is got identical numbering with its coil.
In addition, the coil KM1 of contactor KM1 is connected on the loop of output terminal Q0.5 of Programmable Logic Controller PLC, also is serially connected with the normally closed auxiliary contact KM22 of contactor KM2; The coil KM2 of contactor KM2 is connected on the loop of output terminal Q0.6 of Programmable Logic Controller PLC, also is serially connected with the normally closed auxiliary contact KM12 of contactor KM1; Contactor KM1 often leaves main contacts KM11 and its normally closed auxiliary contact KM12 interlocking, and contactor KM2 often leaves main contacts KM21 and its normally closed auxiliary contact KM22 interlocking; PORT COM DB9 on the Programmable Logic Controller PLC is connected with monitor HMI; Current transducer GDB adopts perforation input type current transducer, and the input hole B of current transducer GDB is passed in described shunt circuit; Also be serially connected with Fuse Type switch FTF1, FTF2 and FTF3 etc. respectively on the loops such as heating executive component EE1, EE2 and EE3, to improve overload protective function; Also be connected with on-load switch QF1 on the general supply loops such as all heating executive component EE1, EE2 or EE3; Also be connected with working power E1, E2, E3 etc. on the diagram end of Programmable Logic Controller PLC and current transducer GDB respectively.
In the use, shown in Fig. 1 state, when not detecting, close behind the on-load switch QF1, the output terminal Q0.5 output control signal of Programmable Logic Controller PLC, wherein coil KM1 get electric, often open main contacts KM11 closure, normally closed auxiliary contact KM12 disconnects, heating executive component EE1, EE2 or EE3 etc. electricly be in usual duty; When detecting, press starting switch SB, enabling signal is from the input end I0.0 input of Programmable Logic Controller PLC, at this moment the output terminal Q0.5 of Programmable Logic Controller PLC closes, coil KM1 dead electricity, often open main contacts KM11 and disconnect, normally closed auxiliary contact KM12 closure, the output terminal Q0.6 output control signal of Programmable Logic Controller PLC, that coil KM2 gets is electric, often open main contacts KM21 closure, normally closed auxiliary contact KM22 disconnects, and power supply becomes through described shunt circuit to conveyings such as all heating executive component EE1, EE2 or EE3; The output terminal Q0.0 output control signal of Programmable Logic Controller PLC, control solid-state relay SSR1 conducting, heat the input hole B of the electric current process current transducer GDB on the executive component EE1 loop simultaneously, make current transducer GDB obtain the current value in heating executive component EE1 loop; Current transducer GDB converts it to direct current signal analog quantity by linear scaling then, analog quantity expansion module 6ES7 changes the direct current signal analog quantity into digital quantity again, Programmable Logic Controller PLC compares this digital quantity value and preset value, judges the quality in heating executive component EE1 loop; (about 2 seconds) Programmable Logic Controller PLC closed output terminal Q0.0 after detection was finished, and by output terminal Q0.1 output control signal, heating executive component EE2 loop was detected ..., circulate with this and to finish up to the detection in all heating executive component loops.When a certain heating executive component loop is unusual, the output terminal Q0.7 of Programmable Logic Controller PLC is the output abnormality signal just, by unusual pilot relay KA1 control abnormity control circuit warning reminding operator or cut-out firing equipment power supply etc., the communication port DB9 of Programmable Logic Controller PLC also outputs to monitor HMI with detection information simultaneously, demonstrates testing process and result.When testing process finishes, the output terminal Q0.6 of Programmable Logic Controller PLC closes, coil KM2 dead electricity, often open main contacts KM21 and disconnect, normally closed auxiliary contact KM22 closure, the output terminal Q0.5 output control signal of Programmable Logic Controller PLC, that coil KM1 gets is electric, often open main contacts KM11 closure, and normally closed auxiliary contact KM12 disconnects, and circuit returns to the usual duty before not detecting; Recover heating executive component EE1, the EE2 of a certain damage or EE3 etc., carry out after can cutting off on-load switch QF1, the on-load switch QF1 that closes after the recovery gets final product.

Claims (7)

1. the fast automatic detecting device of a firing equipment, it is characterized in that: comprise Programmable Logic Controller and analog quantity expansion module thereof, several solid-state relays, two contactors, unusual pilot relay, current transducer, starting switch, wherein each solid-state relay all is serially connected in the heating executive component loop of firing equipment correspondence with its two output terminals, each solid-state relay all is connected with an output terminal of Programmable Logic Controller with an one input end, on the general supply loop in all heating executive component loops, a shunt circuit is set, the current transducer input port is connected on the described shunt circuit, the output terminal of current transducer is connected with the analog quantity input end of analog quantity expansion module, the main contacts of two contactors is serially connected in respectively on the general supply loop and described shunt circuit in all heating executive component loops, its coil is connected on two output terminals of Programmable Logic Controller, the contact of unusual pilot relay is concatenated on the unusual control circuit, its coil is connected on another output terminal of Programmable Logic Controller, and starting switch is connected on the input end of Programmable Logic Controller.
2. press the fast automatic detecting device of the described firing equipment of claim 1, it is characterized in that described contactor coil is connected to the auxiliary contact that also are serially connected with contactor on the loop of Programmable Logic Controller output terminal, the main contacts that auxiliary contact are in contact with it device constitutes interlocked relationship.
3. press the fast automatic detecting device of the described firing equipment of claim 2, the main contacts that it is characterized in that described two contactors all adopts often opens main contacts, the coil of a contactor and the normally closed auxiliary contact of another contactor are serially connected on the loop of an output terminal of Programmable Logic Controller, the coil of another contactor and the normally closed auxiliary contact of previous contactor are serially connected on the loop of another output terminal of Programmable Logic Controller, each contactor main contacts all with its auxiliary contact interlocking.
4. by the fast automatic detecting device of claim 1 or 2 described firing equipments, it is characterized in that the PORT COM on the described Programmable Logic Controller is connected with monitor.
5. by the fast automatic detecting device of claim 1 or 2 described firing equipments, it is characterized in that all heating executive components of described firing equipment are annexation, be provided with more than one heating executive component in each heating executive component loop.
6. by the fast automatic detecting device of claim 1 or 2 described firing equipments, it is characterized in that being serially connected with fuse or Fuse Type switch on the described heating executive component loop.
7. by the fast automatic detecting device of claim 1 or 2 described firing equipments, it is characterized in that described unusual control circuit is the control relay circuit of a sound or a luminous warning circuit or a cut-out firing equipment power supply.
CN2010206053086U 2010-11-15 2010-11-15 Quick automatic detection device of heating equipment Expired - Fee Related CN201845058U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206053086U CN201845058U (en) 2010-11-15 2010-11-15 Quick automatic detection device of heating equipment

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Application Number Priority Date Filing Date Title
CN2010206053086U CN201845058U (en) 2010-11-15 2010-11-15 Quick automatic detection device of heating equipment

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106291155A (en) * 2015-06-05 2017-01-04 陕西飞机工业(集团)有限公司 A kind of aircraft tail deicing Automatic Cycle is heated detection device
CN106638225A (en) * 2017-01-16 2017-05-10 上海耶伦电热技术合伙企业(普通合伙) Snow melting and deicing system
CN106793187A (en) * 2017-01-16 2017-05-31 上海耶伦电热技术合伙企业(普通合伙) For the switch element of automatic computer heating control
CN111060741A (en) * 2020-01-08 2020-04-24 广东达诚技术股份有限公司 Multi-channel temperature control heating current detection system
CN113945778A (en) * 2020-07-17 2022-01-18 中国石油化工股份有限公司 Multi-section heating state monitoring device for electric roasting furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106291155A (en) * 2015-06-05 2017-01-04 陕西飞机工业(集团)有限公司 A kind of aircraft tail deicing Automatic Cycle is heated detection device
CN106291155B (en) * 2015-06-05 2019-01-25 陕西飞机工业(集团)有限公司 A kind of aircraft tail deicing automatic cycle heating detection device
CN106638225A (en) * 2017-01-16 2017-05-10 上海耶伦电热技术合伙企业(普通合伙) Snow melting and deicing system
CN106793187A (en) * 2017-01-16 2017-05-31 上海耶伦电热技术合伙企业(普通合伙) For the switch element of automatic computer heating control
CN111060741A (en) * 2020-01-08 2020-04-24 广东达诚技术股份有限公司 Multi-channel temperature control heating current detection system
CN113945778A (en) * 2020-07-17 2022-01-18 中国石油化工股份有限公司 Multi-section heating state monitoring device for electric roasting furnace

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHANTOU FULI MACHINERY CO., LTD.

Free format text: FORMER OWNER: LIN QIPENG

Effective date: 20110822

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 515829 SHANTOU, GUANGDONG PROVINCE TO: 515065 SHANTOU, GUANGDONG PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20110822

Address after: 515065 Guangdong province Shantou city two Street No. 7 million Kyrgyzstan

Patentee after: Shantou Fuli Machine Manufacturing Co., Ltd.

Address before: 515829, No. 7 South two street, Wan Ji industrial zone, Longhu District, Guangdong, Shantou

Patentee before: Lin Qipeng

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110525

Termination date: 20141115

EXPY Termination of patent right or utility model