CN108170092B - Sandwich gas and inner layer gas control system for corrugated pipe forming machine - Google Patents
Sandwich gas and inner layer gas control system for corrugated pipe forming machine Download PDFInfo
- Publication number
- CN108170092B CN108170092B CN201810241493.6A CN201810241493A CN108170092B CN 108170092 B CN108170092 B CN 108170092B CN 201810241493 A CN201810241493 A CN 201810241493A CN 108170092 B CN108170092 B CN 108170092B
- Authority
- CN
- China
- Prior art keywords
- cavity
- inner layer
- interlayer
- corrugated pipe
- gas
- Prior art date
- 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.)
- Active
Links
- 239000010410 layer Substances 0.000 claims abstract description 43
- 239000011229 interlayer Substances 0.000 claims abstract description 38
- 238000001125 extrusion Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
The invention discloses a control system for interlayer gas and inner layer gas of a corrugated pipe forming machine, belongs to the technical field of plastic processing, and solves the technical problems that the control operation of the air pressure in an interlayer cavity and an inner layer cavity on a traditional corrugated pipe production line is inconvenient, the control precision is not well grasped, and the numerical value is not recordable; the system comprises a touch screen, a PLC, an analog output module and a proportional valve; the operation personnel inputs the technological parameter information through the touch screen, the data processor can read the technological parameter information of the touch screen and send the technological parameter information to the analog quantity output module through the digital signal, the analog quantity output module can convert the digital signal into a corresponding analog quantity signal and send the analog quantity signal to each proportional valve, the air inlet flow of each layer cavity can be adjusted or the proportional valve is closed, the air pressure in each layer cavity is further controlled, the data of each adjustment parameter has the recordable property, the operation and maintenance are more convenient, the system stability is better, and the control precision is higher.
Description
Technical Field
The invention relates to the technical field of plastic processing, in particular to a system for realizing automatic control of interlayer gas and inner layer gas of an extrusion die on a corrugated pipe forming machine.
Background
The outer surface of the plastic corrugated pipe is a regular corrugated surface, and the inner surface of the plastic corrugated pipe is a smooth curved surface. In the prior art, a corrugated pipe forming machine extrudes a plastic corrugated pipe through an extrusion die on the corrugated pipe forming machine, two forming inner cavities are arranged in the extrusion die, one is an interlayer cavity used for extruding the outer surface of the corrugated pipe, the other is an inner cavity used for extruding the smooth inner surface, and a worker usually manually adjusts a control valve to adjust the air pressure in the two layer cavities, but the adjusting mode has the following defects: 1. the manual regulation has more control valves and is inconvenient to operate; 2. the accuracy of the manual adjustment control valve is not easy to grasp; 3. because the bellows of different specifications are manufactured, the pressure of each layer of cavity that the staff needs to adjust is different, and every time when manufacturing the bellows of different specifications, all need readjusting the atmospheric pressure parameter, do not have the record nature of data, the staff needs to operate repeatedly, and the bellows of same specification is adjusted twice, and its regulation parameter also hardly keeps unanimous, and in this way, the quality of goods hardly improves, production efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a sandwich gas and inner gas control system for a corrugated pipe forming machine, which is convenient to operate and maintain, higher in control precision and better in system stability.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
a sandwich gas and inner gas control system for a bellows forming machine, said bellows forming machine comprising:
the extrusion die is used for extruding the corrugated pipe, and an interlayer cavity and an inner layer cavity are arranged in the extrusion die; and
The external air source is used for inflating the interiors of the interlayer cavity and the inner layer cavity and is respectively communicated with the interlayer cavity and the inner layer cavity through pipelines; and
The pressure gauge is used for detecting the air pressure in the interlayer cavity and the inner layer cavity and is arranged on the extrusion die; the interlayer gas and inner layer gas control system comprises:
A data processor; and
The tubing length meter is in signal connection with the data processor and can measure the extruded length of the corrugated tube; and
The touch screen is in communication connection with the data processor and can receive pressure parameter information input by a user; and
The analog quantity output module is in communication connection with the data processor and can convert digital signals into analog quantity signals;
The proportional valves are in signal connection with the analog quantity output module and can receive analog quantity signals sent by the analog quantity output module and control the intra-cavity air pressure of the interlayer cavity and the inner-layer cavity;
The pipe length meter can send the length information that the bellows extruded to the data processor in, the touch-sensitive screen can read the length information that the bellows extruded, the user can be according to this length information input corresponding pressure parameter information, the data processor can send corresponding pressure parameter information to analog output module, analog output module can send analog signal to each proportional valve, each proportional valve can adjust the intracavity atmospheric pressure in intermediate layer chamber and the inlayer chamber.
In the above technical solution, preferably, the data processor is a siemens S7200PLC.
In the above technical solution, preferably, the data input device is a siemens touch screen.
In the above technical solution, preferably, the analog signal is a current signal of 4-20 mA.
Compared with the prior art, the invention has the following beneficial effects: in the scheme, an operator inputs technological parameter information through the touch screen, the data processor can read the technological parameter information of the touch screen and send the technological parameter information to the analog quantity output module through the digital signal, the analog quantity output module can convert the digital signal into a corresponding analog quantity signal and send the analog quantity signal to each proportional valve, the air inlet flow of each layer cavity can be adjusted or the proportional valve is closed, the air pressure in each layer cavity is further controlled, the data of each adjusting parameter has the recordable property, the operation and maintenance are more convenient, the system stability is better, and the control precision is higher.
Drawings
FIG. 1 is a schematic diagram of a sandwich gas and inner gas control system for a bellows forming machine according to the present invention;
Wherein, 1, an extrusion die; 11. an interlayer cavity; 12. an inner cavity.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
According to the drawing 1, the corrugated pipe forming machine comprises an extrusion die for extruding corrugated pipes, an interlayer cavity 11 for extruding corrugated surfaces of outer walls of the corrugated pipes and an inner cavity 12 for extruding smooth surfaces of inner walls of the corrugated pipes are arranged in the extrusion die 1, an interlayer air inlet and an inner air inlet which are respectively communicated with the interlayer cavity 11 and the inner cavity 12 are arranged on the extrusion die 1, the interlayer air inlet and the inner air inlet are respectively connected with an external air source, a pressure gauge for respectively detecting air pressure in the interlayer cavity 11 and the inner cavity 12 is arranged on the extrusion die, and proportional valves which are respectively used for controlling air inlet flow of each layer of cavity and can receive analog signals are connected between the interlayer air inlet, the inner air inlet and the external air source.
The air pressure of the interlayer cavity 11 corresponding to each section of the corrugated pipe is different along the length direction of the corrugated pipe, and the air pressure of the inner layer cavity 12 corresponding to each section of the corrugated pipe is also different. Specifically, in the length direction of the bellows, the air pressure in the interlayer cavity 11 and the air pressure in the inner layer cavity 12 correspond to each section of the bellows, so that the air pressure in the interlayer cavity 11 and the air pressure in the inner layer cavity 12 corresponding to each section of the bellows need to be controlled respectively.
The interlayer gas and inner layer gas control system comprises a data processor, a pipe length meter which is in signal connection with the data processor and can measure the length of the corrugated pipe, a touch screen which is in communication connection with the data processor and can receive user input parameter information, and an analog quantity output module which is in communication connection with the data processor and can convert digital signals into analog quantity signals, wherein the analog quantity output module is in control connection with each proportional valve. In this embodiment, the data processor is a siemens S7200PLC, and the touch screen is a siemens touch screen.
The working principle of the interlayer gas and inner layer gas control system is as follows: ① The tubing length meter sends the measured length information extruded by the corrugated tube to the data processor through a signal, and the data processor feeds the extruded length information back to the touch screen and displays the extruded length information on the touch screen; ② After the user checks the length information of the corrugated pipe on the touch screen, respectively inputting the intra-cavity air pressure parameters of the corresponding interlayer cavity and the inner-layer cavity according to the lengths of all sections of the corrugated pipe; ③ The data processor sends all air pressure parameters input by a user to the analog output module through signals, the analog output module converts digital signals of the data processor into corresponding analog signals, and the analog signals are sent to the two proportional valves; the analog signal is a 4-20 mA current signal sent by an analog output module or receivable by a proportional valve; ④ The two proportional valves are opened to work and respectively adjust the air pressure in the interlayer cavity and the inner layer cavity corresponding to the lengths of the sections of the corrugated pipe, during the period, an external air source continuously charges the inside of the extrusion die, the pressure gauge detects the air pressure in the cavity of each layer of cavity in real time, and a user can check the pressure information of each layer of cavity through the pressure gauge.
In addition, all technological parameter information regulated by a user can be stored by the touch screen, when the corrugated pipe forming machine processes corrugated pipes with the same specification, the user can directly call the stored data through the touch screen, the user operation and maintenance are more convenient, the system stability is better, and the control precision is higher.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (4)
1. The method for controlling the interlayer gas and the inner layer gas of the corrugated pipe forming machine comprises a control system for controlling the interlayer gas and the inner layer gas of the corrugated pipe forming machine, wherein the corrugated pipe forming machine comprises the following components:
The extrusion die (1) is used for extruding the corrugated pipe, and an interlayer cavity (11) and an inner layer cavity (12) are arranged in the extrusion die; and an external air source for inflating the inside of the interlayer cavity (11) and the inner layer cavity (12), which are respectively communicated with the interlayer cavity (11) and the inner layer cavity (12) through pipelines; the pressure gauge is used for detecting the air pressure in the interlayer cavity (11) and the inner layer cavity (12), and is arranged on the extrusion die (1); the method is characterized in that: the interlayer gas and inner layer gas control system comprises:
A data processor; the tubing length meter is in signal connection with the data processor and can measure the extrusion length of the corrugated tube; the touch screen is in communication connection with the data processor and can receive pressure parameter information input by a user; the analog quantity output module is in communication connection with the data processor and can convert digital signals into analog quantity signals;
the proportional valves are in signal connection with the analog quantity output module, and can receive analog quantity signals sent by the analog quantity output module and control the intra-cavity air pressure of the interlayer cavity (11) and the inner layer cavity (12);
The pipe length meter can send the length information extruded by the corrugated pipe into the data processor, the touch screen can read the length information extruded by the corrugated pipe, a user can input corresponding pressure parameter information according to the length information, the data processor can send the corresponding pressure parameter information to the analog output module, the analog output module can send analog signals to each proportional valve, and each proportional valve can adjust the intra-cavity air pressure of the interlayer cavity (11) and the inner layer cavity (12);
The method comprises the following steps:
The tubing length meter sends the measured length information extruded by the corrugated tube to the data processor through a signal, and the data processor feeds the extruded length information back to the touch screen and displays the extruded length information on the touch screen;
Respectively inputting the intra-cavity air pressure parameters of the corresponding interlayer cavity and the inner-layer cavity according to the lengths of the sections of the corrugated pipe;
The data processor sends the input air pressure parameters to the analog output module through signals, the analog output module converts the digital signals of the data processor into corresponding analog signals, and the analog signals are sent to the two proportional valves;
The two proportional valves are opened to work and respectively adjust the air pressure in the interlayer cavity and the inner layer cavity corresponding to the lengths of the sections of the corrugated pipe, during the period, an external air source continuously charges the inside of the extrusion die, and the pressure gauge detects the air pressure in the cavity of each layer in real time so as to enable a user to check the pressure information of the cavity of each layer.
2. The method for controlling the interlayer gas and the inner layer gas for the corrugated pipe forming machine according to claim 1, wherein: the data processor is Siemens S7200PLC.
3. The method for controlling the interlayer gas and the inner layer gas for the corrugated pipe forming machine according to claim 1, wherein: the touch screen is a Siemens touch screen.
4. The method for controlling the interlayer gas and the inner layer gas for the corrugated pipe forming machine according to claim 1, wherein: the analog signal is a current signal of 4-20 mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241493.6A CN108170092B (en) | 2018-03-22 | Sandwich gas and inner layer gas control system for corrugated pipe forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810241493.6A CN108170092B (en) | 2018-03-22 | Sandwich gas and inner layer gas control system for corrugated pipe forming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108170092A CN108170092A (en) | 2018-06-15 |
| CN108170092B true CN108170092B (en) | 2024-07-05 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202071329U (en) * | 2011-04-22 | 2011-12-14 | 青岛华塑机械制造有限公司 | Double-wall corrugated pipe production device |
| CN204515473U (en) * | 2015-04-18 | 2015-07-29 | 上饶师范学院 | A kind of gas pressure monitoring controller |
| CN206270737U (en) * | 2016-11-18 | 2017-06-20 | 大连三垒机器股份有限公司 | Bellows extruder and forming machine share the electrical control gear of touch-screen |
| CN207924477U (en) * | 2018-03-22 | 2018-09-28 | 苏州金纬机械制造有限公司 | Interbedded gas and internal layer gas control system for corrugated pipe forming machine |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202071329U (en) * | 2011-04-22 | 2011-12-14 | 青岛华塑机械制造有限公司 | Double-wall corrugated pipe production device |
| CN204515473U (en) * | 2015-04-18 | 2015-07-29 | 上饶师范学院 | A kind of gas pressure monitoring controller |
| CN206270737U (en) * | 2016-11-18 | 2017-06-20 | 大连三垒机器股份有限公司 | Bellows extruder and forming machine share the electrical control gear of touch-screen |
| CN207924477U (en) * | 2018-03-22 | 2018-09-28 | 苏州金纬机械制造有限公司 | Interbedded gas and internal layer gas control system for corrugated pipe forming machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108170092B (en) | Sandwich gas and inner layer gas control system for corrugated pipe forming machine | |
| CN103819101A (en) | Continuous and centralized feeding device for coating materials as well as feeding method and control method of continuous and centralized feeding device | |
| CN204687330U (en) | Extrude longitudinal thickness uniformity adjusting device of composite membrane | |
| CN104260321A (en) | Intelligent mold | |
| CN103736768B (en) | Internal diameter constant two ends wall thickness increases pressurizing unit and the pressing method of tubing | |
| CN201325863Y (en) | Fluid metering supply device | |
| CN207924477U (en) | Interbedded gas and internal layer gas control system for corrugated pipe forming machine | |
| CN207717168U (en) | A kind of device for pressure measurement suitable for denitration fluid bed | |
| CN202805607U (en) | Die for hollow spiral sound attenuation pipe | |
| CN211542276U (en) | Plastic micro-tube gas-assisted extrusion device with precise and automatic gas pressure control | |
| CN204054601U (en) | A kind of intelligent die | |
| CN209613825U (en) | A kind of molding control device of aluminium section die | |
| CN203731093U (en) | Intelligent device for emptying unqualified gas | |
| CN202667304U (en) | Metal bend extrusion forming device | |
| CN207096832U (en) | A kind of capacity high-pressure gas pressure control device | |
| CN207224557U (en) | Pipe production line failure automatic halting control device | |
| CN106774462B (en) | The method for detecting using digital frequency conversion controller under DCS environment and adjusting flow | |
| CN101664763A (en) | Method for calibrating three-roller guiding devices | |
| CN219076490U (en) | Double-vacuum double-water injection plastic extruder | |
| CN219412867U (en) | Air pump capable of automatically stopping when air outlet humidity exceeds standard | |
| CN110702860A (en) | Real-time monitoring method and monitoring system for nitrogen-filling and air-conditioning of stored grains | |
| CN203786538U (en) | Workpiece pneumatic measuring control device | |
| CN218081138U (en) | Adjustable pressure mechanism of alternating current welding machine | |
| CN202963076U (en) | Automatic control feedback system of aluminum extrusion machine | |
| CN203273286U (en) | Air storage tank of air compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |