CN213320408U - Automatic control system of variable-frequency feed chipless cutting machine for large-diameter plastic pipes - Google Patents
Automatic control system of variable-frequency feed chipless cutting machine for large-diameter plastic pipes Download PDFInfo
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- CN213320408U CN213320408U CN202021933930.XU CN202021933930U CN213320408U CN 213320408 U CN213320408 U CN 213320408U CN 202021933930 U CN202021933930 U CN 202021933930U CN 213320408 U CN213320408 U CN 213320408U
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Abstract
The utility model discloses an automatic control system of a variable-frequency feed chipless cutting machine for large-diameter plastic pipes, which comprises a three-phase power supply, wherein the three-phase power supply is connected with the input end of a first circuit breaker, the output end of the first circuit breaker is connected with the input end of a transformer, the output end of the transformer is connected with the input end of a second circuit breaker, the output end of the second circuit breaker is connected with the input point of a switch power supply, and the output end of the switch power supply is connected with a PLC (programmable logic controller) and a touch; the PLC controller is respectively connected with the revolution motor frequency converter, the feed frequency converter, the clamping electromagnetic valve, the follow-up electromagnetic valve, the operation indicator lamp and the fault indicator lamp through a plurality of intermediate relays; the feed frequency converter is connected with the feed motor to control the reverse rotation of the feed motor; and the PLC analog quantity output module is connected with the feed frequency converter to control the speed of the feed motor. The utility model discloses can realize the accurate automatic cutout of fixed length, incision when cutting tubular product is smooth level and smooth, and dust-free during the cutting reduces environmental pollution, material saving, and is with low costs.
Description
Technical Field
The utility model relates to a tubular product cutting field, concretely relates to heavy-calibre plastics tubular product frequency conversion feed chipless cutting machine automatic control system.
Background
At present, the control systems of the plastic pipe cutting machines on the market are of the following types:
(1) the cylinder type pipe chipless cutting machine control system comprises:
the control system controls the lifting of the blade by controlling the stretching of the cylinder, thereby achieving the aim of cutting the pipe; the cylinder is connected with the cutting board, the blade is fixed on the cutting board through the tool apron, the blade is prevented from loosening through the fixed block, the electromagnetic directional valve controls the feeding and the return stroke of the blade, the cylinder clamping device is arranged around the cutting process to compress the pipe, and the blade returns to the initial position after the compressing device loosens after the cutting is completed. The disadvantages of such a control system: 1. the cutting process is difficult to control, the generated pressure is unstable, and the cut is not smooth enough; 2. the feeding speed of the blade is difficult to control, and the high-speed cutting is difficult to realize.
(2) The control system of the lifting saw type pipe cutting machine comprises:
the control system directly drives the saw blade through a motor or indirectly drives the saw blade through a V-shaped belt and a belt wheel to rotate, and controls the lifting of the saw blade through a cylinder, so that the aim of cutting a pipe is fulfilled; the saw blade of the cutting device is directly arranged on the motor, the saw blade is driven by the motor, and the motor is pushed by the cylinder to do lifting motion, so that the action of cutting the plastic pipe is finished. The disadvantages of such a control system: 1. the plastic section cutting device in the form has too much sawdust to be collected, so that environmental pollution and raw material waste are easily caused, and the body health of an operator is influenced; 2. the plastic pipe cutting device in the form is too noisy in working, and can cause harm to the body of an operator.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a heavy-calibre plastics tubular product frequency conversion feed chipless cutting machine automatic control system is provided, can realize the accurate automatic cutout of fixed length, and the incision when cutting tubular product is smooth and level, need not artifical sleeking, and dustless when cutting, reduces environmental pollution, material saving, and is with low costs.
The utility model provides a technical scheme that technical problem adopted is: an automatic control system of a variable-frequency feed chipless cutting machine for large-diameter plastic pipes comprises a three-phase power supply, wherein the three-phase power supply is connected with the input end of a first circuit breaker, the output end of the first circuit breaker is connected with the input end of a transformer, the output end of the transformer is connected with the input end of a second circuit breaker, the output end of the second circuit breaker is connected with the input point of a switch power supply, and the output end of the switch power supply is connected with a PLC (programmable logic controller) and a touch screen; the first circuit breaker is connected with the input end of the contactor, and the output end of the contactor is connected with the bracket motor; the first circuit breaker is connected with the input end of the revolution frequency converter, the output end of the revolution frequency converter is connected with the input end of the revolution motor, the output end of the first circuit breaker is connected with the input end of the feed frequency converter, and the output end of the feed frequency converter is connected with the feed motor; the Q0.0 of the PLC controller is connected with an intermediate relay KA1, and the intermediate relay KA1 is connected with the revolution motor frequency converter to control the starting and stopping of the frequency converter; an output point Q0.1 of the PLC is connected with an intermediate relay KA2, and the intermediate relay KA2 is connected with the feed frequency converter to control the feed frequency converter to rotate forward and start; an output point Q0.3 of the PLC is connected with an intermediate relay KA4, an intermediate relay KA4 is connected with a clamping electromagnetic valve, and the clamping electromagnetic valve is connected with a clamping cylinder to control clamping and releasing of the clamping cylinder; an output point Q0.4 of the PLC is connected with an intermediate relay KA5, an intermediate relay KA5 is connected with a servo electromagnetic valve, and a servo electromagnetic valve is connected with a servo cylinder to control the forward and backward movement of the cutting machine; an output point Q0.5 of the PLC is connected with an intermediate relay KA6, and the intermediate relay KA6 is connected with an operation indicator lamp; an output point Q0.6 of the PLC is connected with an intermediate relay KA7, and the intermediate relay KA7 is connected with a fault indicator lamp; the output point Q1.0 output of the PLC is connected with a contactor KM1, and a contactor KM1 is connected with a bracket motor to control the lifting of the bracket; an output point Q1.1 of the PLC is connected with a contactor KM2, and a contactor KM2 is connected with a bracket motor to control the descending of the bracket; the output point Q1.2 of the PLC controller is connected with an intermediate relay KA8, the intermediate relay KA8 is connected with a feed frequency converter, and the feed frequency converter is connected with a feed motor to control the reverse rotation of the feed motor; an analog quantity output module of the PLC is connected with the feed frequency converter to control the speed of a feed motor; and an analog quantity input module of the PLC is connected with a feed stroke measuring sensor to detect the feed stroke.
The beneficial effects of the utility model are that the cooperation of converter and revolution motor, can control the infinitely variable speed of cutting revolution, the stepless speed regulation that converter and feed motor cooperation realized the feed speed can realize the accurate automatic cutout of fixed length through pulse coder and coaxial arrangement's meter wheel, incision when cutting tubular product is smooth level and smooth, no dust during the cutting, need not artifical sleeking, the cost is saved, the product grade is high, the cutting of specially adapted big knot footpath tubular product, avoided traditional saw bit cutting to produce a large amount of dust and smear metal, also be a pollution to the production environment, also cause the waste to the raw materials simultaneously.
Drawings
Fig. 1 is a schematic diagram of a main circuit of the present invention.
Fig. 2 is the wiring diagram of the PLC controller of the present invention.
Fig. 3 is a solenoid valve control portion.
Wherein, 1 is a revolution motor; 2 is a feed motor; 3 is a bracket motor; 4 is a control power supply 220V; 5 is control power supply DC 24V; u1 is revolution frequency converter; u2 is a feed frequency converter; QF1 is a first breaker, QF2 is a second breaker; KA 1-8 first to eighth intermediate relays; KM1 is a first AC contactor; and KM2 second AC contactor.
The present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in attached figures 1, 2 and 3, the automatic control system of the variable-frequency feed chipless cutting machine for the large-caliber plastic pipes comprises a three-phase power supply, wherein the three-phase power supply is connected with the input end of a first circuit breaker, the output end of the first circuit breaker is connected with the input end of a transformer to provide power for the transformer, the output end of the transformer is connected with the input end of a second circuit breaker, the output end of the second circuit breaker is connected with the input point of a switching power supply, and the output end of the switching power supply is connected with a PLC (programmable logic controller) and a touch screen to provide; the first circuit breaker is connected with the input end of the contactor, and the output end of the contactor is connected with the bracket motor; the first circuit breaker is connected with the input end of the revolution frequency converter, the output end of the revolution frequency converter is connected with the input end of the revolution motor, the output end of the first circuit breaker is connected with the input end of the feed frequency converter, and the output end of the feed frequency converter is connected with the feed motor; the Q0.0 of the PLC controller is connected with an intermediate relay KA1, and the intermediate relay KA1 is connected with the revolution motor frequency converter to control the starting and stopping of the frequency converter; the output point Q0.1 of the PLC is connected with an intermediate relay KA2, and the intermediate relay KA2 is connected with the feed frequency converter to control the feed frequency converter to rotate forward and start; an output point Q0.3 controlled by the PLC is connected with an intermediate relay KA4, an intermediate relay KA4 is connected with a clamping electromagnetic valve, and the clamping electromagnetic valve is connected with a clamping cylinder to control the clamping and releasing of the clamping cylinder; the PLC output point Q0.4 is connected with an intermediate relay KA5, the intermediate relay KA5 is connected with a servo electromagnetic valve, and the servo electromagnetic valve is connected with a servo air cylinder to control the forward and backward movement of the cutting machine; the PLC output point Q0.5 is connected with an intermediate relay KA6, the intermediate relay KA6 is connected with an operation indicator light, and the indicator light is on when the cutting machine operates to display the flying state of the cutting machine; the output point Q0.6 of the PLC is connected with an intermediate relay KA7, the intermediate relay KA7 is connected with a fault indicator lamp, and when the cutting machine fails, the PLC controls the fault indicator lamp to flicker to remind the machine of failing; the output of the PLC output point Q1.0 is connected with a contactor KM1, and a contactor KM1 is connected with a bracket motor to control the lifting of the bracket; the PLC output point Q1.1 is connected with a contactor KM2, and a contactor KM2 is connected with a bracket motor to control the descending of the bracket; the output point Q1.2 of the PLC is connected with an intermediate relay KA8, the intermediate relay KA8 is connected with a feed frequency converter, and the feed frequency converter is connected with a feed motor to control the reverse rotation of the feed motor; the PLC analog quantity output module is connected with the feed frequency converter and controls the speed of a feed motor; and the PLC analog input module is connected with a feed stroke measuring sensor and is used for detecting the stroke of feed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (1)
1. The utility model provides a heavy-calibre plastics tubular product frequency conversion feed chipless cutting machine automatic control system which characterized in that: the power supply comprises a three-phase power supply, wherein the three-phase power supply is connected with the input end of a first circuit breaker, the output end of the first circuit breaker is connected with the input end of a transformer, the output end of the transformer is connected with the input end of a second circuit breaker, the output end of the second circuit breaker is connected with the input point of a switch power supply, and the output end of the switch power supply is connected with a PLC (programmable logic controller) and a touch screen; the first circuit breaker is connected with the input end of the contactor, and the output end of the contactor is connected with the bracket motor; the first circuit breaker is connected with the input end of the revolution frequency converter, the output end of the revolution frequency converter is connected with the input end of the revolution motor, the output end of the first circuit breaker is connected with the input end of the feed frequency converter, and the output end of the feed frequency converter is connected with the feed motor; the Q0.0 of the PLC controller is connected with an intermediate relay KA1, and the intermediate relay KA1 is connected with the revolution motor frequency converter to control the starting and stopping of the frequency converter; an output point Q0.1 of the PLC is connected with an intermediate relay KA2, and the intermediate relay KA2 is connected with the feed frequency converter to control the feed frequency converter to rotate forward and start; an output point Q0.3 of the PLC is connected with an intermediate relay KA4, an intermediate relay KA4 is connected with a clamping electromagnetic valve, and the clamping electromagnetic valve is connected with a clamping cylinder to control clamping and releasing of the clamping cylinder; an output point Q0.4 of the PLC is connected with an intermediate relay KA5, an intermediate relay KA5 is connected with a servo electromagnetic valve, and a servo electromagnetic valve is connected with a servo cylinder to control the forward and backward movement of the cutting machine; an output point Q0.5 of the PLC is connected with an intermediate relay KA6, and the intermediate relay KA6 is connected with an operation indicator lamp; an output point Q0.6 of the PLC is connected with an intermediate relay KA7, and the intermediate relay KA7 is connected with a fault indicator lamp; the output point Q1.0 output of the PLC is connected with a contactor KM1, and a contactor KM1 is connected with a bracket motor to control the lifting of the bracket; an output point Q1.1 of the PLC is connected with a contactor KM2, and a contactor KM2 is connected with a bracket motor to control the descending of the bracket; the output point Q1.2 of the PLC controller is connected with an intermediate relay KA8, the intermediate relay KA8 is connected with a feed frequency converter, and the feed frequency converter is connected with a feed motor to control the reverse rotation of the feed motor; an analog quantity output module of the PLC is connected with the feed frequency converter to control the speed of a feed motor; and an analog quantity input module of the PLC is connected with a feed stroke measuring sensor to detect the feed stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021933930.XU CN213320408U (en) | 2020-09-07 | 2020-09-07 | Automatic control system of variable-frequency feed chipless cutting machine for large-diameter plastic pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021933930.XU CN213320408U (en) | 2020-09-07 | 2020-09-07 | Automatic control system of variable-frequency feed chipless cutting machine for large-diameter plastic pipes |
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| CN213320408U true CN213320408U (en) | 2021-06-01 |
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| CN202021933930.XU Active CN213320408U (en) | 2020-09-07 | 2020-09-07 | Automatic control system of variable-frequency feed chipless cutting machine for large-diameter plastic pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362036A (en) * | 2021-11-29 | 2022-04-15 | 国网辽宁省电力有限公司大连供电公司 | Electrified obstacle removing device for small-sized visual power transmission line |
-
2020
- 2020-09-07 CN CN202021933930.XU patent/CN213320408U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362036A (en) * | 2021-11-29 | 2022-04-15 | 国网辽宁省电力有限公司大连供电公司 | Electrified obstacle removing device for small-sized visual power transmission line |
| CN114362036B (en) * | 2021-11-29 | 2023-07-28 | 国网辽宁省电力有限公司大连供电公司 | Electrified obstacle removing device for small-sized visual power transmission line |
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