CN107234796A - A kind of extruder protection device of plastic sheeting recovery system and its guard method - Google Patents
A kind of extruder protection device of plastic sheeting recovery system and its guard method Download PDFInfo
- Publication number
- CN107234796A CN107234796A CN201710582901.XA CN201710582901A CN107234796A CN 107234796 A CN107234796 A CN 107234796A CN 201710582901 A CN201710582901 A CN 201710582901A CN 107234796 A CN107234796 A CN 107234796A
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- CN
- China
- Prior art keywords
- protection device
- circuit breaker
- frequency converter
- leading
- out terminal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/96—Safety devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of extruder protection device of plastic sheeting recovery system and its guard method, including main extruder protection device, feeding machine protection device and intelligent protection device, the main extruder protection device includes frequency converter V1, circuit breaker Q F1, QF2, QF3 and Intelligent current table PA1, the circuit breaker Q F1, QF2, QF3 end of incoming cables respectively with power network A, B, C triple lines are connected, its leading-out terminal is respectively through reactor L1, L2, L3 is connected with frequency converter V1 end of incoming cables, frequency converter V1 leading-out terminal is connected with main extruder, the end of incoming cables of the Intelligent current table PA1 is connected through circuit breaker Q F4 with power network A phase lines, its leading-out terminal is connected with power network zero line N, current transformer T1 is in series with circuit between the circuit breaker Q F3 and reactor L3, coil of current transformer T1 two terminals respectively with Intelligent current table PA1 is connected.Present invention reduces the fault rate of extruder, maintenance cost has been saved.
Description
Technical field
The present invention relates to a kind of extruder protection device, and in particular to a kind of extruder protection of plastic sheeting recovery system
Device and its guard method.
Background technology
Film produced when the rim charge cut off when production line is normally produced, the substandard product scratched, rupture of membranes etc. is all needed
Recycle, be at this moment accomplished by using the equipment such as extruder, feeding machine, wire drawing machine, pelleter.But such one is arranged
It is standby, usually because the reason such as high capacity, high speed, high temperature, equipment failure rate is very high.Extruder is the core of this complete equipment
Point, extruder machine（Including driving frequency converter, extrusion screw rod, motor etc.）Damage, being typically necessary shutdown a few hours could
Repair, human and material resources takes a lot.Cost efficiency all is being advocated now, reduction equipment failure rate and maintenance cost are equipment
The primary responsibility of maintenance personal, then I devise this set protection device.
The content of the invention
It is an object of the invention to provide a kind of extruder protection device of plastic sheeting recovery system and its guard method,
The fault rate of extruder is reduced, maintenance cost is saved.
To achieve the above object, present invention employs following technical scheme：
A kind of extruder protection device of plastic sheeting recovery system, including main extruder protection device, feeding machine protection device
And intelligent protection device, the main extruder protection device include frequency converter V1, circuit breaker Q F1, QF2, QF3 and Intelligent current table
PA1, described circuit breaker Q F1, QF2, QF3 end of incoming cables are connected with power network A, B, C triple line respectively, and its leading-out terminal is respectively through reactance
Device L1, L2, L3 are connected with frequency converter V1 end of incoming cables, and frequency converter V1 leading-out terminal is connected with main extruder, the Intelligent current
Table PA1 end of incoming cables is connected through circuit breaker Q F4 with power network A phase lines, and its leading-out terminal is connected with power network zero line N, the circuit breaker Q F3
Current transformer T1 is in series with circuit between reactor L3, current transformer T1 two terminals respectively with intelligence
Ammeter PA1 coil is connected.
The feeding machine protection device includes frequency converter V2, circuit breaker Q F5, QF6, QF7, rotary switch SB2 and intelligence electricity
Flow table PA2, described circuit breaker Q F5, QF6, QF7 end of incoming cables are connected with power network A, B, C triple line respectively, and its leading-out terminal is passed through respectively
Reactor L4, L5, L6 are connected with frequency converter V2 end of incoming cables, and frequency converter V2 leading-out terminal is connected with feeding motor, the intelligence
Ammeter PA2 end of incoming cables is connected with circuit breaker Q F3 leading-out terminal, and its leading-out terminal is connected with power network zero line N, the breaker
Current transformer T2 is in series with circuit between QF7 and reactor L6, current transformer T2 two terminals respectively with
Intelligent current table PA2 coil is connected, and the rotary switch SB2 is connected with frequency converter V2 control end.
The intelligent protection device includes relay JA, time relay KT, rotary switch SB2 and alarm HA, described
Relay JA input is connected with Intelligent current table PA1, PA2 normally opened contact, and its output end is connected with power network zero line N, institute
Leading-out terminal of the wherein one end with circuit breaker Q F4 of the normally closed interlock and its normally open contact of stating relay JA is connected, the relay
Device JA normally closed interlock and its normally open contact other end normally opened contact respectively with frequency converter V1, alarm HA one end are connected,
The alarm HA other end is connected with power network zero line N, the input of the time relay KT and frequency converter V1 normally opened contact
It is connected, its output end is connected with power network zero line N.
A kind of guard method of the extruder protection device of plastic sheeting recovery system, comprises the following steps：
（1）Control power circuit breaker to be powered by circuit breaker Q F3, open frequency converter V1；
（2）Rotary switch SB2 is opened, time relay KT is powered, feeding motor operation reversion, when time relay KT passes through 15
After second, time relay KT disconnects, and feeding motor rotates forward operation；
（3）When main crowded current of electric transformer T1 current values reach that 190 peaces or feeding motor current transformer T2 current values reach 9
Ampere-hour, Intelligent current table PA1, PA2 coil output is normally closed, and relay JA is powered, time relay KT dead electricity, feeding motor
Reversion, alarm HA alarms, feeding motor switchs to rotate forward normal operation after 15 seconds
As shown from the above technical solution, the extruder protection device of plastic sheeting recovery system of the present invention and its protection side
Method, reduces the fault rate of extruder, has saved maintenance cost.
Brief description of the drawings
Fig. 1 is the electrical connection diagram of the present invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, the extruder protection device of the plastic sheeting recovery system of the present embodiment, including main extruder protection dress
Put, feeding machine protection device and intelligent protection device, main extruder protection device includes frequency converter V1, circuit breaker Q F1, QF2,
QF3 and Intelligent current table PA1, circuit breaker Q F1, QF2, QF3 end of incoming cables are connected with power network A, B, C triple line respectively, its outlet
End is connected through reactor L1, L2, L3 with frequency converter V1 end of incoming cables respectively, frequency converter V1 leading-out terminal and main extruder M1 phases
Even, Intelligent current table PA1 end of incoming cables is connected through circuit breaker Q F4 with power network A phase lines, and its leading-out terminal is connected with power network zero line N, breaks
Current transformer T1 is in series with circuit between road device QF3 and reactor L3, current transformer T1 two terminals point
It is not connected with Intelligent current table PA1 coil 4,5.
Feeding machine protection device includes frequency converter V2, circuit breaker Q F5, QF6, QF7, rotary switch SB2 and Intelligent current table
PA2, circuit breaker Q F5, QF6, QF7 end of incoming cables are connected with power network A, B, C triple line respectively, and its leading-out terminal is respectively through reactor
L4, L5, L6 are connected with frequency converter V2 end of incoming cables, and frequency converter V2 leading-out terminal is connected with feeding motor M2, Intelligent current table PA2
End of incoming cables be connected with circuit breaker Q F3 leading-out terminal, its leading-out terminal is connected with power network zero line N, circuit breaker Q F7 and reactor L6 it
Between circuit on be in series with current transformer T2, current transformer T2 two terminals are respectively with Intelligent current table PA2's
Coil 4 ' is connected with 5 ', and rotary switch SB2 is connected with frequency converter V2 control end.
Intelligent protection device includes relay JA, time relay KT, rotary switch SB2 and alarm HA, relay JA
Input and Intelligent current table PA1 normally opened contact 15 and 16, and PA2 normally opened contact 15 ' is connected with 16 ', relay
JA output end is connected with power network zero line N, relay JA normally closed interlock JA1 and its normally open contact JA2 wherein one end with
Circuit breaker Q F4 leading-out terminal is connected, the relay JA normally closed interlock JA1 other ends respectively with frequency converter V1 normally opened contact 9 and
10 are connected, and the normally open contact JA2 other end is connected with alarm HA one end, alarm the HA other end and power network zero line N phases
Even, time relay KT input is connected with frequency converter V1 normally opened contact, and its output end is connected with power network zero line N.
The guard method of the extruder protection device of the plastic sheeting recovery system of the present embodiment, comprises the following steps：
S1：Power circuit breaker is controlled to be powered by circuit breaker Q F3, frequency converter V1 is opened, frequency converter V1 normally opened contact 9 and No. 10
Line is changed into normally closed；
S2：Rotary switch SB2 is opened, time relay KT is powered, and frequency converter V2 No. 1 terminal obtains electric, feeding motor M2 operations
Reversion, when time relay KT is after 15 seconds, time relay KT disconnects, and frequency converter V2 No. 2 terminals obtain electric, feeding motor
M2 rotates forward operation；
S3：When main crowded current of electric transformer T1 current values reach that 190 peaces or feeding motor M2 current transformer T2 current values reach
To 9 ampere-hours, Intelligent current table PA1 15,16 terminals or 15 ', the 16 ' of Intelligent current table PA2 are changed into normally closed, and relay JA leads to
Electricity, time relay KT dead electricity, feeding motor M2 reversions, alarm HA alarms, feeding motor M2 switchs to just become a full member after 15 seconds
Often operation.
When equipment is run, setting main extruder M1 operating current upper limit 190A, feeding motor M2 operating currents are reached the standard grade
9A, when main extruder M1 electric currents exceed operating current upper limit 190A or feeding motor M2 operating currents more than 9A, feeding electricity
Machine M2 stops and inverts startup, the material now pushed ahead can be stirred by feeding motor M2 pine and excavated, main extruder M1 due to
The material of propulsion is excavated, and load slowly diminishes, so feeding motor M2 reversions are set to as 15S by the present embodiment, after testing 15S
Main extruder M1 operating current can all drop to below 190A, and at this moment feeding motor M2 stops and positive startup.If this system is even
Continuous to occur three times, alarm starts alarm, and now staff need to shut down and notify engineering department personnel to come to check.Confirm without it
Started shooting again after his failure.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.
Claims (4)
1. a kind of extruder protection device of plastic sheeting recovery system, it is characterised in that：Including main extruder protection device, feed
Material machine protection device and intelligent protection device, the main extruder protection device include frequency converter V1, circuit breaker Q F1, QF2, QF3
And Intelligent current table PA1, described circuit breaker Q F1, QF2, QF3 end of incoming cables are connected with power network A, B, C triple line respectively, its outlet
End is connected through reactor L1, L2, L3 with frequency converter V1 end of incoming cables respectively, and frequency converter V1 leading-out terminal is connected with main extruder,
The end of incoming cables of the Intelligent current table PA1 is connected through circuit breaker Q F4 with power network A phase lines, and its leading-out terminal is connected with power network zero line N,
Current transformer T1 is in series with circuit between the circuit breaker Q F3 and reactor L3, two of current transformer T1 connect
Coil of the line end respectively with Intelligent current table PA1 is connected.
2. the extruder protection device of plastic sheeting recovery system according to claim 1, it is characterised in that：The feeding
Machine protection device includes frequency converter V2, circuit breaker Q F5, QF6, QF7, rotary switch SB2 and Intelligent current table PA2, the open circuit
Device QF5, QF6, QF7 end of incoming cables are connected with power network A, B, C triple line respectively, its leading-out terminal respectively through reactor L4, L5, L6 with
Frequency converter V2 end of incoming cables is connected, and frequency converter V2 leading-out terminal is connected with feeding motor, the end of incoming cables of the Intelligent current table PA2
It is connected with circuit breaker Q F3 leading-out terminal, its leading-out terminal is connected with power network zero line N, between the circuit breaker Q F7 and reactor L6
Current transformer T2 is in series with circuit, the coil of current transformer T2 two terminals respectively with Intelligent current table PA2
It is connected, the rotary switch SB2 is connected with frequency converter V2 control end.
3. the extruder protection device of plastic sheeting recovery system according to claim 1, it is characterised in that：The intelligence
Protection device includes relay JA, time relay KT, rotary switch SB2 and alarm HA, the input of the relay JA
It is connected with Intelligent current table PA1, PA2 normally opened contact, its output end is connected with power network zero line N, the relay JA's is normally closed
Leading-out terminal of the wherein one end of contact and its normally open contact with circuit breaker Q F4 is connected, the normally closed interlock of the relay JA and
Its normally open contact other end normally opened contact respectively with frequency converter V1, alarm HA one end are connected, the alarm HA other end
It is connected with power network zero line N, the input of the time relay KT is connected with frequency converter V1 normally opened contact, its output end and electricity
Net zero line N is connected.
4. a kind of guard method of the extruder protection device of plastic sheeting recovery system, it is characterised in that comprise the following steps：
（1）Control power circuit breaker to be powered by circuit breaker Q F3, open frequency converter V1；
（2）Rotary switch SB2 is opened, time relay KT is powered, feeding motor operation reversion, when time relay KT passes through 15
After second, time relay KT disconnects, and feeding motor rotates forward operation；
（3）When main crowded current of electric transformer T1 current values reach that 190 peaces or feeding motor current transformer T2 current values reach 9
Ampere-hour, Intelligent current table PA1, PA2 coil output is normally closed, and relay JA is powered, time relay KT dead electricity, feeding motor
Reversion, alarm HA alarms, feeding motor switchs to rotate forward normal operation after 15 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582901.XA CN107234796B (en) | 2017-07-17 | 2017-07-17 | Extruder protection device and protection method of plastic film recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582901.XA CN107234796B (en) | 2017-07-17 | 2017-07-17 | Extruder protection device and protection method of plastic film recycling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107234796A true CN107234796A (en) | 2017-10-10 |
| CN107234796B CN107234796B (en) | 2023-08-29 |
Family
ID=59990554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710582901.XA Active CN107234796B (en) | 2017-07-17 | 2017-07-17 | Extruder protection device and protection method of plastic film recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107234796B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836710A (en) * | 2018-03-26 | 2020-10-27 | 科林斯股份公司 | Device and method for the on-line recycling of scrap in a plastic film extrusion line |
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| DE2935807A1 (en) * | 1979-09-05 | 1981-04-02 | Brown, Boveri & Cie Ag, 6800 Mannheim | Overload protection circuit - has PTC resistor in series with load and shunted by overload warning lamp |
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| Publication number | Publication date |
|---|---|
| CN107234796B (en) | 2023-08-29 |
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Address after: 230000 No.1000 Mingchuan Road, hi tech Zone, Hefei City, Anhui Province Patentee after: Anhui Guofeng New Material Co.,Ltd. Address before: Tianzhi Road, national high tech Industrial Development Zone, Hefei City, Anhui Province, No. 36 230088 Patentee before: ANHUI GUOFENG PLASTIC CO.,LTD. |