CN204493330U - A kind of cotton press - Google Patents
A kind of cotton press Download PDFInfo
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- CN204493330U CN204493330U CN201520158499.9U CN201520158499U CN204493330U CN 204493330 U CN204493330 U CN 204493330U CN 201520158499 U CN201520158499 U CN 201520158499U CN 204493330 U CN204493330 U CN 204493330U
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- proportional
- control valve
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- valve
- pressure control
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Abstract
The utility model provides a kind of cotton press, comprise the proportional pressure control valve for regulating oil pressure that the oil circuit that is connected with main cylinder pressure and drawing cylinder is arranged, the proportional pressure control valve for regulating oil pressure that the oil circuit be connected with precompression cylinder is arranged, the proportional pressure control valve for regulating oil pressure that the oil circuit be connected with eight valves is arranged, control the proportional reversing valve turning case motor operation direction, with the proportional pressure control valve for regulating oil pressure that the oil circuit sending cotton cylinder to be connected is arranged, control the proportional reversing valve sending cotton cylinder traffic direction, and regulate the controller of parameter of above-mentioned all proportions relief valve and proportional reversing valve.Packer is in running, oil pressure can be regulated according to actual needs, such packer velocity variations can rely on the proportional pressure control valve of participation action and proportional reversing valve to switch and jointly realize, reaching can the object of multistage even stepless time adjustment arbitrarily, thus realizes packer fast, steadily, impact technique effect that is little, the metering of the degree of precision bale of cotton.
Description
Technical field
The utility model relates to a kind of cotton press.
Background technique
In existing domestic cotton processing technique field, packer mainly breaks into gined cotton the bale of cotton of unified standard, and in packer working procedure, hydraulic shock size determines the precision of the efficiency of packer work, working life, bale of cotton metering.Domestic existing packer is all utilize relief valve to set up the oil supply pressure of hydraulic system, then coordinates some solenoid directional control valves to realize packer action.Oil supply pressure value, once set up, in equipment running process, almost just no longer artificially changes.The velocity variations of packer only realizes by the switching of solenoid valve, so the impact of hydraulic system is just unavoidable, the precision of bale of cotton metering can not well ensure.Just easily there is following problem in this cooperation:
1, stabilization of equipment performance reduces.Whole frame is rocked, and PLC and man-machine interface collection signal instability, cause packer stall, even affect the working efficiency of whole production line.
2, bale of cotton metering is unstable.Increase non-standard packet rate.Waste bale packing materials.If non-standard packet can not participate in circulation, also to return bag, again make standard bag, both increased the amount of labour of workman and extended workman's working time, also having wasted resource.
3, hydraulic fittings shortening in working life, increases breakdown judge difficulty.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of cotton press, realizes packer fast, steadily, impact little, degree of precision bale of cotton metering.
In order to solve the problems of the technologies described above, the technical solution of the utility model is:
A kind of cotton press, is characterized in that: comprise
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with main cylinder pressure and drawing cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with precompression cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with eight valves is arranged,
Control the proportional reversing valve turning case motor operation direction,
With the proportional pressure control valve for regulating oil pressure that the oil circuit sending cotton cylinder to be connected is arranged,
Control the proportional reversing valve sending cotton cylinder traffic direction, and
Regulate the controller of the parameter of above-mentioned all proportions relief valve and proportional reversing valve.
Above-mentioned cotton press, controller comprises PLC and person-computer union, person-computer union is connected by datawire with the CPU of PLC, and the amplifier of proportional pressure control valve is connected with PLC analog output module, and the amplifier of proportional reversing valve is connected with PLC analog output module.
Packer is in running, oil pressure can be regulated according to actual needs, such packer velocity variations can rely on the proportional pressure control valve of participation action and proportional reversing valve to switch and jointly realize, reaching can the object of multistage even stepless time adjustment arbitrarily, thus realizes packer fast, steadily, impact technique effect that is little, the metering of the degree of precision bale of cotton.
Accompanying drawing explanation
Below in conjunction with accompanying drawing to the further detailed description of the utility model:
Fig. 1 is proportional pressure control valve amplifier schematic diagram.
Fig. 2 is proportional reversing valve amplifier schematic diagram.
Fig. 3 is PLC analog output module schematic diagram.
Fig. 4 is proportional pressure control valve setting parameter figure.
Fig. 5 is proportional reversing valve setting parameter figure.
Embodiment
As shown in Figures 1 to 5, a kind of cotton press, comprises
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with main cylinder pressure and drawing cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with precompression cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with eight valves is arranged,
Control the proportional reversing valve turning case motor operation direction,
With the proportional pressure control valve for regulating oil pressure that the oil circuit sending cotton cylinder to be connected is arranged,
Control the proportional reversing valve sending cotton cylinder traffic direction, and
Regulate the controller of the parameter of above-mentioned all proportions relief valve and proportional reversing valve.
Controller comprises PLC and person-computer union, and person-computer union is connected by datawire with the CPU of PLC, and the amplifier of proportional pressure control valve is connected with PLC analog output module, and the amplifier of proportional reversing valve is connected with PLC analog output module.
The utility model, in order to make up prior art blank, provides a kind of and installs simply, the driving mode of debugging and electric and hydraulic pressure interoperation easy to maintenance.All utilize relief valve to set up the oil supply pressure of hydraulic system for current domestic existing packer action, coordinate some solenoid directional control valves to realize packer action again, because solenoid directional control valve opening only has two states: close or open, opening degree can not manual control, the hydraulic flow arriving oil hydraulic cylinder can only passively be accepted, so hydraulic shock is can hardly be avoided, thus cause packer equipment unstable, and bale of cotton metering is inaccurate.The utility model proposes on hydraulic pressure with proportional pressure control valve and proportional reversing valve, proportional pressure control valve and proportional reversing valve opening can have numerous state, can reach maximum gradually from closedown, opening amplitude can realize automatically regulating arbitrarily, realizes controlled for the hydraulic flow arriving oil hydraulic cylinder.Proportional pressure control valve uses as oil sources, and proportional reversing valve is mainly used as to change direction.Proportional pressure control valve and proportional direction valve actual aperture amplitude parameters in man-machine interface are controlled by PLC again, and after therefore hydraulic station improves, packer is in running, and we can according to actual needs, auto-changing oil supply pressure at any time.Such packer velocity variations can rely on the proportional pressure control valve of participation action and proportion directional Vavle switching jointly to realize.Reaching can the object of multistage even stepless time adjustment arbitrarily.Thus realize packer fast, steadily, without impacting and the metering of the highi degree of accuracy bale of cotton.
This mode is mainly used in following action:
1. main pressure, drawing cylinder proportional pressure control valve carry out regulating system pressure, and Fig. 4 is shown in concrete action;
2. precompression cylinder proportional pressure control valve carrys out regulating system pressure, and Fig. 4 is shown in concrete action;
3. eight valve proportional pressure control valves carry out regulating system pressure, and Fig. 4 is shown in concrete action; Control to turn case motor operation direction with proportional reversing valve, Fig. 5 is shown in concrete action;
4. send cotton cylinder proportional pressure control valve to carry out regulating system pressure, Fig. 4 is shown in concrete action; Control to send cotton traffic direction with proportional reversing valve, Fig. 5 is shown in concrete action.
The utility model is achieved by the following technical solution:
Proportional pressure control valve of the present utility model and its special way of the application of proportional reversing valve on packer hydraulic pressure are:
Passing ratio relief valve and proportional reversing valve follow PLC and man-machine interface cooperation to come to regulate oil supply pressure on packer hydraulic pressure at any time arbitrarily as required, thus realize packer without impact operation.The beneficial effects of the utility model are: packer fast, steadily, nothing is impacted and the highi degree of accuracy bale of cotton measures.And oil supply pressure can regulate according to the speed multi-stage of packer, regulating is all complete in man-machine interface, so regulate and safeguard all very convenient.
Below in conjunction with accompanying drawing, the utility model is described further.
Only need proportional pressure control valve amplifier with PLC line in Fig. 1.Power supply is+24V and 0V, and input signal A1, A2 receive in figure tri-PLC analog output module respective terminal.
Proportional reversing valve APS amplifier power supply in Fig. 2 is+24V and 0V, and input signal B1, B2 receive in figure tri-PLC analog output module respective terminal.Its electromagnet A and electromagnet B is wired on the electromagnet tenminal block on proportional reversing valve.
Fig. 4 and Fig. 5 is man-machine interface, and it is talked with by the CPU of datawire and PLC, and CPU assigns instruction to analog output module again.On the picture of Fig. 4 and Fig. 5 display, can in regular scope any regulating parameter, set up after parameter, come control ratio relief valve and proportional reversing valve work by PLC, thus the action of driving packer.Because the parameter in man-machine interface can set arbitrarily, so packer acceleration and deceleration can realize multistep speed regulation, reach the level and smooth conversion of speed, thus it is steady to achieve packer, without impacting and the metering of the highi degree of accuracy bale of cotton.
Claims (2)
1. a cotton press, is characterized in that: comprise
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with main cylinder pressure and drawing cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with precompression cylinder is arranged,
The proportional pressure control valve for regulating oil pressure that the oil circuit be connected with eight valves is arranged,
Control the proportional reversing valve turning case motor operation direction,
With the proportional pressure control valve for regulating oil pressure that the oil circuit sending cotton cylinder to be connected is arranged,
Control the proportional reversing valve sending cotton cylinder traffic direction, and
Regulate the controller of the parameter of above-mentioned all proportions relief valve and proportional reversing valve.
2. cotton press according to claim 1, it is characterized in that: controller comprises PLC and person-computer union, person-computer union is connected by datawire with the CPU of PLC, the amplifier of proportional pressure control valve is connected with PLC analog output module, and the amplifier of proportional reversing valve is connected with PLC analog output module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158499.9U CN204493330U (en) | 2015-03-20 | 2015-03-20 | A kind of cotton press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158499.9U CN204493330U (en) | 2015-03-20 | 2015-03-20 | A kind of cotton press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493330U true CN204493330U (en) | 2015-07-22 |
Family
ID=53572651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520158499.9U Active CN204493330U (en) | 2015-03-20 | 2015-03-20 | A kind of cotton press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493330U (en) |
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2015
- 2015-03-20 CN CN201520158499.9U patent/CN204493330U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |