CN104325790A - Safety protection circuit for printing equipment and device - Google Patents
Safety protection circuit for printing equipment and device Download PDFInfo
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- CN104325790A CN104325790A CN201410673395.1A CN201410673395A CN104325790A CN 104325790 A CN104325790 A CN 104325790A CN 201410673395 A CN201410673395 A CN 201410673395A CN 104325790 A CN104325790 A CN 104325790A
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- printing equipment
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- equipment safety
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Abstract
The invention discloses a safety protection circuit for printing equipment and a device. The safety protection circuit for printing equipment comprises an electronic controller and at least two mutually parallel connected branches connected with the electronic controller, wherein one end of each of the at least two mutually parallel connected branches is connected with a power supply end of the electronic controller while the other end is connected with a grounded end of the electronic controller; each of the at least two mutually parallel connected branches comprises a relay with a lamp and at least two logic interlocking points; the relay with the lamp is serially connected with the at least two logic interlocking points; the at least two logic interlocking points are serially connected with each other. According to the technical scheme provided by the invention, the logic interlocking points in fault can be quickly judged, so that the check time is effectively reduced and the overhauling efficiency is increased.
Description
Technical field
The present invention relates to control technology field, particularly relate to a kind of printing equipment safety protective circuit and device.
Background technology
In actual production, some plant equipment higher to safety requirements, the gilding press etc. in such as printing equipment, is generally all provided with multiple emergency stop switch, electric eye and each safety door switch, to prevent equipment from causing unexpected injury to production operation personnel, ensure the safety of producing.To the control of emergency stop switch, electric eye and each safety door switch, just need device security loop.In current technology, device security loop combines by suddenly stopping control, safty shield protection and function logic interlocking, and when wherein any one place goes wrong, system just can show safety return circuit fault, and machine will start or shut down.When breaking down in device security loop, anxious stopping being controlled, can judge from input and output point two aspect in emergency stop switch state and PLC (Programmable Logic Controller, programmable logic controller (PLC)); Safty shield protection also can judge from the input point PLC.And the input and output point that functional logic interlocking can not place one's entire reliance upon on PLC indicates, this is because logical interlock point mainly realizes by electric eye sensor and relay, the relay contact loose contact that Yin Gaowen causes or damage is often there is in actual production, and the normal situation of PLC logic function.
In current technology, general logical interlock point has dozens of, and all logical interlock points are connected mutually, is distributed in each place in Electric Appliance Cabinet.When breaking down in device security loop, and when having determined not to be the fault of suddenly stopping control and safty shield protection, that just can determine that function logic interlocking is broken down.
When function logic interlocking is broken down, in current technology, because dozens of logical interlock point is connected mutually, cause needing to check one by one this dozens of logical interlock point, great inconvenience is brought to plant maintenance personnel, due to corresponding failure safe point cannot be found at short notice, make maintenance efficiency lower.
Summary of the invention
In view of this, the invention provides a kind of printing equipment safety protective circuit and device, in order to the logical interlock point of quick failure judgement, thus effectively reduce the review time, improve overhaul efficiency.
For achieving the above object, the invention provides following technical scheme:
A kind of printing equipment safety protective circuit, comprising:
Electronic controller;
At least two that are connected with described electronic controller mutual branch roads in parallel; Described at least two mutual branch roads in parallel, one end is connected with the feeder ear of described electronic controller, and the other end is connected with the earth terminal of described electronic controller;
In described at least two mutual branch roads in parallel, each branch road comprises a band lamp relay and at least two logical interlock points; Described band lamp relay and at least two logical interlock points are connected mutually; Described at least two logical interlocks point is connected mutually.
Preferably, the feeder ear of described electronic controller is connected with the dc source of 24 volts.
Preferably, described band lamp relay is the band lamp relay of direct current 24 volts.
Preferably, described logical interlock point comprises:
Electric eye sensor and relay.
Preferably, in described at least two mutual branch roads in parallel, described at least two branch roads, the number of logical interlock point is equal.
Preferably, in described at least two mutual branch roads in parallel, described in every bar branch road, the number of logical interlock point is all equal.
Preferably, in described at least two branch roads mutually in parallel, the number that at least there is logical interlock point described in the number of logical interlock point described in a branch road and other branch roads is unequal.
Preferably, in described at least two branch roads mutually in parallel, between the branch road that described logical interlock point number is maximum and the minimum branch road of number, the difference of described logical interlock point number is no more than default value.
A kind of printing equipment safety guard, comprising:
Printing equipment safety protective circuit described above, and the programmable logic controller (PLC) PLC be connected with described electronic controller.
Preferably, described electronic controller is connected with printing equipment.
Known via above-mentioned technical scheme, compared with prior art, the invention provides a kind of printing equipment safety protective circuit and device.Printing equipment safety protective circuit provided by the invention, comprising: electronic controller; At least two that are connected with described electronic controller mutual branch roads in parallel; Described at least two mutual branch roads in parallel, one end is connected with the feeder ear of described electronic controller, and the other end is connected with the earth terminal of described electronic controller; In described at least two mutual branch roads in parallel, each branch road comprises a band lamp relay and at least two logical interlock points; Described band lamp relay and at least two logical interlock points are connected mutually; Described at least two logical interlocks point is connected mutually.Technical scheme provided by the invention, by multiple described logical interlock point being divided into many branch roads in parallel, connect in every bar branch road one and be with the relay of lamp, when function logic interlocking is broken down, apply printing equipment safety protective circuit provided by the invention and device, after then power-off re-powers, the band lamp relay observed in each parallel branch is only needed whether normally to work, if normally do not worked, then illustrate that the branch road at the band lamp relay place of this abnormal work exists fault, now, only need to check that each logical interlock point in this fault branch just can be fixed a breakdown, no longer need the multiple logical interlock points checked in other branch roads.Therefore, technical scheme provided by the invention, effectively can reduce the review time, improves overhaul efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structure chart of a kind of printing equipment safety protective circuit that Fig. 1 provides for the embodiment of the present invention;
The structure chart of the electronic controller failure detector circuit that Fig. 2 provides for the embodiment of the present invention;
The structure chart of a kind of printing equipment safety guard that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment one
Refer to Fig. 1, the structure chart of a kind of printing equipment safety protective circuit that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, this printing equipment safety protective circuit comprises:
Electronic controller 11;
At least two that are connected with described electronic controller 11 mutual branch roads 12 in parallel; Described at least two mutual branch roads 12 in parallel, one end is connected with the feeder ear A1 of described electronic controller 11, and the other end is connected with the earth terminal A2 of described electronic controller 11;
In described at least two mutual branch roads 12 in parallel, each branch road 12 comprises a band lamp relay 121 and at least two logical interlock points 122; Described band lamp relay 121 and at least two logical interlock points 122 are connected mutually; Described at least two logical interlocks point 122 is connected mutually.
Concrete, based on the consideration that accompanying drawing is succinct, four mutual branch roads 12 in parallel are shown in embodiment of the present invention Fig. 1.In shown in embodiment of the present invention Fig. 1 four branch road 12 in parallel mutually, comprise 25 logical interlock points 122 altogether, it should be noted that, in actual production, the number of logical interlock point can be a lot, such as 69 etc., the technical scheme that those skilled in the art provide with reference to the embodiment of the present invention, the suitable branch road increasing parallel connection can (such as, during 69 logical interlock points, optionally, be divided into the branch road of ten groups of parallel connections), the annexation of the branch roads that branch road and the embodiment of the present invention of these parallel connections increased by four of providing are in parallel mutually is also parallel connection.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, states the feeder ear A1 of electronic controller 11 and is connected with the dc source of 24 volts.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, described band lamp relay 121 is the band lamp relay of direct current 24 volts.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, described logical interlock point 122 comprises:
Electric eye sensor and relay.
Concrete, the logical interlock point shown in Fig. 1, optionally, with-(m) k (n) represent.Such as ,-41k1.8.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, the band lamp relay 121 in each parallel branch is provided with the pre-fixed contact 1211 be connected with X1X2 fault detect loop.Pre-fixed contact 1211 in each parallel branch and the annexation in X1X2 fault detect loop, refer to Fig. 2.The structure chart of the electronic controller failure detector circuit that Fig. 2 provides for the embodiment of the present invention.
As shown in Figure 2, each pre-fixed contact 1211 is connected mutually, forms loop with X1 and X2, only has each pre-fixed contact 1211 normally to work, and electronic controller 11 could normal work.If wherein any one pre-fixed contact 1211 goes wrong, then opening of corresponding relay contact, X1 and X2 just cannot form loop, and electronic controller 11 just cannot normally work.Concrete, 4 pre-fixed contacts 1211 have been shown in Fig. 2, and these 4 pre-fixed contacts 1211 lay respectively in the band lamp relay 121 of different parallel branch.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, in described at least two mutual branch roads 12 in parallel, described at least two branch roads 12, the number of logical interlock point 122 is equal.As shown in Figure 1, described in the branch road 12 that existence two is in parallel, the number of logical interlock point 122 is equal.
Further, the printing equipment safety protective circuit that the embodiment of the present invention provides, in described at least two mutual branch roads 12 in parallel, described in every bar branch road, the number of logical interlock point 122 is all equal.
Concrete, the printing equipment safety protective circuit that the embodiment of the present invention provides, in described at least two branch roads 12 in parallel mutually, the number that at least there is logical interlock point 122 described in the number of logical interlock point 122 described in a branch road and other branch roads is unequal.As shown in Figure 1, the number that there is logical interlock point 122 described in the number of logical interlock point 122 described in a branch road 12 and other branch roads is unequal.
Further; the printing equipment safety protective circuit that the embodiment of the present invention provides; in described at least two branch roads mutually in parallel, between the branch road that described logical interlock point number is maximum and the minimum branch road of number, the difference of described logical interlock point number is no more than default value.Optionally, described default value is 5.As shown in Figure 1, in four branch roads 12 in parallel, between the branch road 12 that described logical interlock point 122 number is maximum and the minimum branch road 12 of number, the difference of described logical interlock point 122 number is 2, is less than 5.
It should be noted that, the printing equipment safety protective circuit that the embodiment of the present invention provides, in four mutual branch roads 12 in parallel, optionally, every bar branch road 12 comprises at least two logical interlock points 122 for controlling identical device parts.That is, optionally, the logical interlock point 122 controlling identical device parts is connected mutually, then connects with band lamp relay 121, forms a branch road, this branch road and other branch circuit parallel connections.Such as, in Fig. 1, comprise the branch road 12 of 6 logical interlock points 122, optionally, for controlling the branch road of safety door; Comprising the branch road 12 of 5 logical interlock points 122, optionally, is the branch road of control cylinder.
Further, the embodiment of the present invention also discloses a kind of printing equipment safety guard.
As shown in Figure 3, a kind of structure chart of printing equipment safety guard that provides for the embodiment of the present invention of Fig. 3.As shown in Figure 3, this printing equipment safety guard comprises:
Printing equipment safety protective circuit 31 described above;
And the PLC (Programmable Logic Controller, programmable logic controller (PLC)) 32 to be connected with described electronic controller.
Further, the printing equipment safety guard that the embodiment of the present invention provides, described electronic controller is connected with printing equipment.
Concrete, described electronic controller is connected with safety component with the control assembly of described printing equipment respectively.
Known via above-mentioned technical scheme, compared with prior art, the invention provides a kind of printing equipment safety protective circuit and device.Printing equipment safety protective circuit provided by the invention, comprising: electronic controller; At least two that are connected with described electronic controller mutual branch roads in parallel; Described at least two mutual branch roads in parallel, one end is connected with the feeder ear of described electronic controller, and the other end is connected with the earth terminal of described electronic controller; In described at least two mutual branch roads in parallel, each branch road comprises a band lamp relay and at least two logical interlock points; Described band lamp relay and at least two logical interlock points are connected mutually; Described at least two logical interlocks point is connected mutually.Technical scheme provided by the invention, by multiple described logical interlock point being divided into many branch roads in parallel, connect in every bar branch road one and be with the relay of lamp, when function logic interlocking is broken down, apply printing equipment safety protective circuit provided by the invention and device, after then power-off re-powers, the band lamp relay observed in each parallel branch is only needed whether normally to work, if normally do not worked, then illustrate that the branch road at the band lamp relay place of this abnormal work exists fault, now, only need to check that each logical interlock point in this fault branch just can be fixed a breakdown, no longer need the multiple logical interlock points checked in other branch roads.Therefore, technical scheme provided by the invention, effectively can reduce the review time, improves overhaul efficiency.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a printing equipment safety protective circuit, is characterized in that, comprising:
Electronic controller;
At least two that are connected with described electronic controller mutual branch roads in parallel; Described at least two mutual branch roads in parallel, one end is connected with the feeder ear of described electronic controller, and the other end is connected with the earth terminal of described electronic controller;
In described at least two mutual branch roads in parallel, each branch road comprises a band lamp relay and at least two logical interlock points; Described band lamp relay and at least two logical interlock points are connected mutually; Described at least two logical interlocks point is connected mutually.
2. printing equipment safety protective circuit according to claim 1, is characterized in that, the feeder ear of described electronic controller is connected with the dc source of 24 volts.
3. printing equipment safety protective circuit according to claim 1, is characterized in that, described band lamp relay is the band lamp relay of direct current 24 volts.
4. printing equipment safety protective circuit according to claim 1, is characterized in that, described logical interlock point comprises:
Electric eye sensor and relay.
5. printing equipment safety protective circuit according to claim 1, is characterized in that, in described at least two mutual branch roads in parallel, described at least two branch roads, the number of logical interlock point is equal.
6. printing equipment safety protective circuit according to claim 5, is characterized in that, in described at least two mutual branch roads in parallel, described in every bar branch road, the number of logical interlock point is all equal.
7. printing equipment safety protective circuit according to claim 1, is characterized in that, in described at least two branch roads mutually in parallel, the number that at least there is logical interlock point described in the number of logical interlock point described in a branch road and other branch roads is unequal.
8. printing equipment safety protective circuit according to claim 7; it is characterized in that; in described at least two branch roads mutually in parallel, between the branch road that described logical interlock point number is maximum and the minimum branch road of number, the difference of described logical interlock point number is no more than default value.
9. a printing equipment safety guard, is characterized in that, comprising:
Printing equipment safety protective circuit described in claim 1 ~ 8 any one, and the programmable logic controller (PLC) PLC be connected with described electronic controller.
10. printing equipment safety guard according to claim 9, is characterized in that, described electronic controller is connected with printing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673395.1A CN104325790B (en) | 2014-11-21 | 2014-11-21 | Printing equipment safety protective circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673395.1A CN104325790B (en) | 2014-11-21 | 2014-11-21 | Printing equipment safety protective circuit and device |
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| Publication Number | Publication Date |
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| CN104325790A true CN104325790A (en) | 2015-02-04 |
| CN104325790B CN104325790B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410673395.1A Active CN104325790B (en) | 2014-11-21 | 2014-11-21 | Printing equipment safety protective circuit and device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970613A (en) * | 1962-06-08 | 1964-09-23 | Planeta Veb Druckmasch Werke | Improvements in safety circuits for electrically-driven machines |
| DE3122762A1 (en) * | 1980-10-02 | 1982-05-19 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | Safety circuit for printers |
| CN1911658A (en) * | 2005-08-08 | 2007-02-14 | 小森公司 | Abnormal state determination method and apparatus |
| CN201494978U (en) * | 2009-08-01 | 2010-06-02 | 中煤第三建设（集团）有限责任公司 | Fault detector of safety control circuit of mine temporary hoister |
| CN201999490U (en) * | 2011-03-24 | 2011-10-05 | 芜湖新兴铸管有限责任公司 | Control system for belt conveyor |
| CN204322732U (en) * | 2014-11-21 | 2015-05-13 | 常德金鹏印务有限公司 | Printing equipment safety protective circuit and device |
-
2014
- 2014-11-21 CN CN201410673395.1A patent/CN104325790B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB970613A (en) * | 1962-06-08 | 1964-09-23 | Planeta Veb Druckmasch Werke | Improvements in safety circuits for electrically-driven machines |
| DE3122762A1 (en) * | 1980-10-02 | 1982-05-19 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | Safety circuit for printers |
| CN1911658A (en) * | 2005-08-08 | 2007-02-14 | 小森公司 | Abnormal state determination method and apparatus |
| CN201494978U (en) * | 2009-08-01 | 2010-06-02 | 中煤第三建设（集团）有限责任公司 | Fault detector of safety control circuit of mine temporary hoister |
| CN201999490U (en) * | 2011-03-24 | 2011-10-05 | 芜湖新兴铸管有限责任公司 | Control system for belt conveyor |
| CN204322732U (en) * | 2014-11-21 | 2015-05-13 | 常德金鹏印务有限公司 | Printing equipment safety protective circuit and device |
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| CN104325790B (en) | 2017-06-30 |
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