CN200945718Y - Cam safety control system of pneumatic press - Google Patents
Cam safety control system of pneumatic press Download PDFInfo
- Publication number
- CN200945718Y CN200945718Y CN 200620073220 CN200620073220U CN200945718Y CN 200945718 Y CN200945718 Y CN 200945718Y CN 200620073220 CN200620073220 CN 200620073220 CN 200620073220 U CN200620073220 U CN 200620073220U CN 200945718 Y CN200945718 Y CN 200945718Y
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- China
- Prior art keywords
- relay
- circuit
- control system
- executive
- pneumatic press
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- Expired - Fee Related
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Abstract
A cam safety control system of pneumatic press relates to operation control system of pneumatic press and mainly comprises a Programmable Logic Control (PLC), an operation signal circuit comprising an operation position approaching switch, and an executive circuit. The operation signal circuit and the executive circuit are connected with the input and output of the Programmable Logic Control (PLC) respectively, and the executive circuit is provided with an executive relay and a clutch power supply dual valve, an always-on switch of the executive relay is connected with one end of the dual valve in serial, a feedback relay is connected with the clutch power supply dual valve in parallel, an always-on switch of the feedback relay is connected with the operation signal circuit, the always-on switch of the executive relay is also connected with the operation signal circuit. The utility model has made improvements upon the prior control system of pneumatic press, and achieved the effects of monitoring executive elements, thereby ensuring the operation safety of the cam of the pneumatic press.
Description
Technical field
The utility model relates to the work control system of pneumatic press.
Background technology
Along with pneumatic press uses widely, security performance to pneumatic press requires more and more higher, single loop control is all adopted in the control of general forcing press, this single-circuit formation mainly is by SQ1 (backhaul), SQ2 (stopping the top dead-centre signal), SQ4 (excess of stroke) etc. gather the position signalling of forcing press near switch, by controller PLC the signal of gathering near switch is handled again, export the signal Y00 of control again by controller PLC, carry out relay K A1 then and carry out action, the forcing press (see figure 1) of starting working, because existing control system is not monitored executive component, move for exporting to control to have, just be difficult to make judgement according to designing requirement.The life-span of the output point of PLC is limited in addition, can produce some misoperations, the serious operate as normal that can not guarantee forcing press through using for a long time.
The utility model content
The utility model purpose is to design a kind of cam safety control system of pneumatic press of the security that can improve forcing press.
The utility model is mainly by programmable controller PLC, comprise the working signal circuit of operating position near switch, executive circuit is formed, the working signal circuit, executive circuit is connected to advancing of programmable controller PLC circuit, go out end, executive circuit is provided with the execution relay, clutch power supply dual valve, the normal open switch of carrying out relay is serially connected in an end of dual valve, on clutch power supply dual valve and connect the feedback relay, the normal open switch of feedback relay is connected on the working signal circuit, also is connected with the normal open switch of carrying out relay on the working signal circuit.
The utility model is because on cam motor power supply dual valve and connect the feedback relay, the normal open switch of feedback relay is connected on the working signal circuit, also is connected with the normal open switch of carrying out relay on the working signal circuit.Changed the control system of pneumatic press in the past, realized monitoring, to guarantee the job security of pneumatic press cam executive component.
On the working signal circuit, be provided with two groups of backhauls near switch.
On the working signal circuit, be provided with two groups and stop the top dead-centre signal near switch.
The utility model utilizes the closed loop double loop to control, and utilizes the closed loop double loop to improve the security of forcing press, important signal is all adopted dual input: SQ1, SQ2 (backhaul 1, backhaul 2), SQ3, SQ4 (stop top dead-centre 1, stop top dead-centre 2).
In addition, executive circuit is provided with two groups and carries out relay, carries out two of relay for two groups and overlaps the common ends that normal open switch are serially connected in dual valve respectively.Purpose is the output point misoperation that prevents PLC, and the probability of two some misoperations simultaneously is very little.
On the working signal circuit, also be connected with the normal open switch of feedback relay.Purpose is: the action that the monitoring executive circuit does not put rules into practice as requested, if do not move as requested, guarantee trouble free service with regard to hard stop.
Description of drawings
Fig. 1 is a prior art control system schematic diagram.
Fig. 2 is a structural representation of the present utility model.
Specific embodiment
The utility model mainly by programmable controller PLC 2, comprise that the operating position forms near working signal circuit 1, the executive circuit 3 of switch, working signal circuit 1, executive circuit 3 be connected to programmable controller PLC 2 circuits into and out of end.On working signal circuit 1, be provided with two groups of backhauls near switch S Q1 and SQ2, two groups stop the top dead-centre signal near switch S Q3 and SQ4, one group of excess of stroke near switch S Q8, and other position further switch S Q5, SQ6, SQ7.
On working signal circuit 1, also be connected with normal open switch KA1-2, the KA2-2 of execution relay 81,87 and the normal open switch KA3 of feedback relay 88.
Claims (4)
1, the cam safety control system of pneumatic press, mainly by programmable controller PLC, comprise the working signal circuit of operating position near switch, executive circuit is formed, the working signal circuit, executive circuit is connected to advancing of programmable controller PLC circuit, go out end, executive circuit is provided with the execution relay, clutch power supply dual valve, the normal open switch of carrying out relay is serially connected in an end of dual valve, it is characterized in that on clutch power supply dual valve and connect the feedback relay, the normal open switch of feedback relay is connected on the working signal circuit, also is connected with the normal open switch of carrying out relay on the working signal circuit.
2,, it is characterized in that on the working signal circuit, being provided with two groups of backhauls near switch according to the cam safety control system of the described pneumatic press of claim 1.
3,, it is characterized in that on the working signal circuit, being provided with two groups and stop the top dead-centre signal near switch according to the cam safety control system of the described pneumatic press of claim 1.
4, according to the cam safety control system of the described pneumatic press of claim 1, it is characterized in that executive circuit is provided with two groups and carries out relay, carry out two of relay for two groups and overlap the common ends that normal open switch are serially connected in dual valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073220 CN200945718Y (en) | 2006-05-26 | 2006-05-26 | Cam safety control system of pneumatic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620073220 CN200945718Y (en) | 2006-05-26 | 2006-05-26 | Cam safety control system of pneumatic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200945718Y true CN200945718Y (en) | 2007-09-12 |
Family
ID=38732778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620073220 Expired - Fee Related CN200945718Y (en) | 2006-05-26 | 2006-05-26 | Cam safety control system of pneumatic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200945718Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403550B (en) * | 2008-11-18 | 2010-06-09 | 上海理工大学 | Miniature pneumatic pressure balancer |
| CN101811376B (en) * | 2010-02-09 | 2012-02-29 | 江苏扬力集团有限公司 | Pressing machine multi-valve circulation repeated action control method |
| CN103587141A (en) * | 2013-11-21 | 2014-02-19 | 江苏扬力集团有限公司 | Safety control system for press machine |
| CN110385367A (en) * | 2019-06-28 | 2019-10-29 | 冯胜 | Mold breaks red needle automatic monitoring control system |
-
2006
- 2006-05-26 CN CN 200620073220 patent/CN200945718Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403550B (en) * | 2008-11-18 | 2010-06-09 | 上海理工大学 | Miniature pneumatic pressure balancer |
| CN101811376B (en) * | 2010-02-09 | 2012-02-29 | 江苏扬力集团有限公司 | Pressing machine multi-valve circulation repeated action control method |
| CN103587141A (en) * | 2013-11-21 | 2014-02-19 | 江苏扬力集团有限公司 | Safety control system for press machine |
| CN103587141B (en) * | 2013-11-21 | 2015-12-09 | 江苏扬力集团有限公司 | A kind of press safety control system |
| CN110385367A (en) * | 2019-06-28 | 2019-10-29 | 冯胜 | Mold breaks red needle automatic monitoring control system |
| CN110385367B (en) * | 2019-06-28 | 2024-05-31 | 冯胜 | Automatic monitoring control system for die breaking punch needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20140526 |