CN102922712B - Medium-high frequency induction heating type high-speed metal tube plastic-coating machine - Google Patents
Medium-high frequency induction heating type high-speed metal tube plastic-coating machine Download PDFInfo
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- CN102922712B CN102922712B CN201210465371.8A CN201210465371A CN102922712B CN 102922712 B CN102922712 B CN 102922712B CN 201210465371 A CN201210465371 A CN 201210465371A CN 102922712 B CN102922712 B CN 102922712B
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Abstract
The invention relates to a medium-high frequency induction heating type high-speed metal tube plastic-coating machine, which is used for coating of metal tubes with various materials and section shapes, and is particularly used for manufacturing handrails coated with the steel tubes of vehicles such as buses, school buses, tourist buses and metros, and guardrails coated with the steel tubes of environmental facilities such as parks, and markets. The medium-high frequency induction heating high-speed metal tube plastic-coating machine comprises an inlet pipe station, a pinch device which is provided with feed roller speed feedback and is driven by a stepper motor, a medium-high frequency induction pre-heating device, an infrared temperature measuring device, a plastic extruder, a flow control cooling device, an outlet pipe station and a control system. A medium-high frequency induction pre-heating part is adopted, and integrally sealed and insulated together with a plastic extruding head part. Therefore, the medium-high frequency induction heating high-speed metal tube plastic-coating machine is simple in structure, reliable to work, even in pre-heating temperature, and convenient to adjust. The medium-high frequency induction heating high-speed metal tube plastic-coating machine has the outstanding characteristics that the production efficiency is improved; the energy consumption is reduced; the production cost is lowered, and the product quality is also improved.
Description
Technical field:
The present invention relates to a kind of medium-high frequency induction heating type high-velocity wire pipe plastic wrapping machine, for metal tube plastic of various material, various cross sectional shape, be particularly useful for the manufacture of bus, school bus, tourist bus, the plastic steel tubular handrailing of subway and other modes of transport and the plastic steel tube guardrail of the environmental facility such as park, market.The present invention by inlet pipe station, band material-feeding rolling wheels velocity feedback and stepper motor driven clamping and conveying device, medium-high frequency respond to preheating device, IR temperature measuring device, plastic extruder, flow-control cooling device, go out plumber position and control system forms.The present invention adopts medium-high frequency to respond to regenerator section and plastic extruding head sectoral integration sealing thermal insulation, structure is simple, reliable operation, preheat temperature is even, easy to adjust, and its distinguishing feature improves production efficiency, decreases energy resource consumption, reduces production cost, further improves product quality.
Background technology:
The metal tube of various material, various cross sectional shape plastic after, be mainly used in bus, school bus, tourist bus, the plastic steel tubular handrailing of subway and other modes of transport and the plastic steel tube guardrail of the environmental facility such as park, market.At present, plastic wrapping machine heats steel pipe by heating furnace for preheating, then is wrapping on steel pipe by plastic extruder extrusion plastic, through cooling aftershaping.
Due to the accuracy of detection of the heating-up temperature in region each in stove and control accuracy lower, the conveying of steel pipe is also difficult to and preheat temperature and plastic extrusion flow relevant matches, have impact on production efficiency; The heating-up temperature uniformity of heating furnace for preheating steel pipe is not high, have impact on the crudy of plastic steel pipe; Meanwhile, conventional electrical heating energy consumption is larger; In addition, heating region is long, and floor space is large.
Instant invention overcomes the technological deficiency that existing plastic wrapping machine exists, solve the poor product quality that existing plastic wrapping machine exists, the problem that production efficiency is low, energy resource consumption, production cost is high.
Summary of the invention:
The present invention relates to a kind of medium-high frequency induction heating type high-velocity wire pipe plastic wrapping machine, the clamping and conveying device 2, the medium-high frequency that are driven by inlet pipe station 1, band material-feeding rolling wheels velocity feedback and stepper motor 2a respond to preheating device 3, IR temperature measuring device 4, plastic extruder 5, flow-control cooling device 6, go out plumber position 7 and control system cabinet 8 forms.The present invention adopts intermediate frequency power supply adjustable heating power, medium-high frequency induction regenerator section and plastic extruding head sectoral integration sealing thermal insulation.
The preheating device of medium-high frequency eddy-current heating proposed by the invention, adopt driving stepper motor clamping and conveying device and IR temperature measuring device, use medium-high frequency induction homogeneous heating and temperature precision Control Technology, infrared thermography feedback technique, material-feeding rolling wheels velocity feedback and computer servo control technology, by heating-up temperature, feeding speed, cooling water circulation flow and plastic extrusion flow matched well, also adopt modern optimization control method, from heating source to temperature, motion feedback and control device on, to ensure plastic quality, production efficiency is provided, reduction energy resource consumption is target, achieve the great innovation of plastic wrapping machine technology.
Primary solutions of the present invention is achieved in that
As shown in Figure 1, a kind of medium-high frequency induction heating type of the present invention high-velocity wire pipe plastic wrapping machine is driven by inlet pipe station 1, band material-feeding rolling wheels velocity feedback and stepper motor 2a clamping and conveying device 2, medium-high frequency respond to preheating device 3, IR temperature measuring device 4, plastic extruder 5, flow-control cooling device 6, go out plumber position 7 and control system cabinet 8 forms.
Inlet pipe station 1 of the present invention before this trunnion axis roller 1a, after be a pair vertical axis roller 1b, trunnion axis roller 1a and vertical axis roller 1b periphery are coated with abrasive rubber, two cover rollers limit five frees degree of steel pipe charging jointly, thus restriction steel pipe can only move along its direction of axis line.
Clamping and conveying device 2 of the present invention and medium-high frequency induction preheating device 3, IR temperature measuring device 4 are critical components of this equipment, and for ease of adjustment and control, they are arranged on a frame 2b jointly; For easy to operate, control system cabinet 8 is arranged in by this frame 2b, also near plastic extruder 5.
Clamping and conveying device 2 of the present invention adopts stepper motor 2a to drive, and material-feeding rolling wheels 2c periphery is coated with abrasive rubber, and material-feeding rolling wheels 2c speed is fed back to control system, and by the computer of control system according to the rotating speed of policy control stepper motor 2a.
Current induction heating power mainly adopts frequency modulation, pressure regulation, phase shift and pulse density modulated (PDM) mode to realize the adjustment of power output.Medium-high frequency of the present invention induction preheating device 3 adopts frequency to be the medium-high frequency power supply of 8 ~ 16KHZ, and medium-high frequency power acquisition pulse density modulated (PDM) mode Modulating Power exports, and sends control impuls by computer according to strategy.Be characterized in that the steel tube surface heating-up temperature of difformity, different cross section is even, temperature controls accurately.
IR temperature measuring device 4 of the present invention is used for measuring the temperature of steel pipe, and certainty of measurement is high, has anti-smog, vapour resistant performance, is controlled the power output of induction heating power by temperature feedback, computer.
The extrusion screw rod of plastic extruder 5 of the present invention is driven by variable-frequency motor, its variable-frequency governor exports input port with data, the temperature controller of its material also exports input port with data, and these data export input port and are connected with the computer of this equipment, can be controlled by computer.
The flow-control that the temperature of cooling device 6 of the present invention is maintained by cooling fluid realizes.
The present invention go out plumber position 7 before this pair vertical axis traction rollers 7a, after be a trunnion axis roller 7b, vertical axis traction rollers 7a and trunnion axis roller 7b periphery are coated with abrasive rubber, two cover rollers limit five frees degree of steel pipe charging jointly, thus restriction steel pipe can only move along its direction of axis line; Vertical axis traction rollers 7a is driven by stepper motor 7c, and the linear velocity of vertical axis traction rollers 7a keeps identical with the linear velocity of material-feeding rolling wheels 2c in clamping and conveying device 2.
Control system cabinet 8 of the present invention is made up of computer control system and induction heating power.
Compared with the prior art the present invention has the following advantages:
(1) Computer Control Technology under infrared thermography feedback, material-feeding rolling wheels velocity feedback and driving stepper motor, make steel pipe with the preheat temperature of the best, feed rate and extrusion plastic temperature, extrude flows match, thus plastic tube product quality is greatly improved.
(2) by heating-up temperature, feeding speed, cooling water circulation flow and plastic extrusion flow matched well, adopt modern optimization control method and computer to control to combine, production efficiency is greatly improved.
(3) infrared thermography feedback, computer controls, medium-high frequency power supply adjustable heating power, and technology such as medium-high frequency induction regenerator section and plastic extruding head sectoral integration sealing thermal insulation etc., makes energy resource consumption greatly reduce.
(4) from the foregoing, the cost of plastic tube product reduces greatly.
Accompanying drawing illustrates:
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is a kind of mounting structure figure of medium-high frequency induction heating type high-velocity wire pipe plastic wrapping machine
Detailed description of the invention:
Be operation principle of the present invention and the course of work below:
As shown in Figure 1, variety classes, different cross section shape steel pipe must trunnion axis roller 1a, the vertical axis roller 1b of customization inlet pipe station 1, the material-feeding rolling wheels 2c of clamping and conveying device 2, the vertical axis traction rollers 7a going out plumber position 7, trunnion axis roller 7b; In the present invention, the induction coil size of medium-high frequency induction preheating device 3 is relevant to steel tube section size.
Steel pipe rest inlet pipe station 1 trunnion axis roller 1a, through vertical axis roller 1b, manual to advance in the material-feeding rolling wheels 2c of clamping and conveying device 2, to be driven by stepper motor 2a, and by the computer of control system according to the rotating speed of policy control stepper motor 2a; Steel pipe is driven in the induction coil of medium-high frequency induction preheating device 3 and heats, and by IR temperature measuring device 4 feedback heater temperature, computer controls to ensure to complete the plastic technique of steel pipe with the temperature of the best at the extrusion of plastic extruder; Again through the cooling of apparatus for supercooling 6 proper temperature, form final products; Finally, through going out vertical axis traction rollers 7a, the trunnion axis roller 7b of plumber position 7, by manual handling, outsourcing plastic protective film for plastics, shelve on storage rack.
Claims (1)
1. a medium-high frequency induction heating type high-velocity wire pipe plastic wrapping machine, is characterized in that: the cooling device (6) of inlet pipe station (1), clamping and conveying device (2), medium-high frequency induction preheating device (3), IR temperature measuring device (4), plastic extruder (5), flow-control, go out plumber position (7) and control system cabinet (8) constitutes high-velocity wire pipe plastic wrapping machine; Its correlated characteristic is:
Inlet pipe station (1) before this trunnion axis roller (1a), after be a pair vertical axis roller (1b), trunnion axis roller (1a) and vertical axis roller (1b) periphery are coated with abrasive rubber;
Clamping and conveying device (2) and medium-high frequency induction preheating device (3), IR temperature measuring device (4) are the critical components of this equipment, they are arranged on a frame (2b) jointly, accomplish the plastic extruding head sectoral integration sealing thermal insulation of medium-high frequency induction preheating device (3) and plastic extruder (5), it is other that control system cabinet (8) is arranged in this frame (2b), also near plastic extruder (5);
Clamping and conveying device (2) adopts stepper motor (2a) to drive, material-feeding rolling wheels (2c) periphery is coated with abrasive rubber, material-feeding rolling wheels (2c) speed is fed back to control system, and by the computer of control system according to the rotating speed of policy control stepper motor (2a);
Medium-high frequency induction preheating device (3) employing frequency is the medium-high frequency power supply of 8 ~ 16KHZ, and medium-high frequency power acquisition pulse density modulated mode Modulating Power exports, and sends control impuls by computer according to strategy;
The extrusion screw rod of plastic extruder (5) is driven by variable-frequency motor, its variable-frequency governor exports input port with data, the temperature controller of its material also exports input port with data, and these data export input port and are connected with the computer of this equipment, can be controlled by computer;
Go out plumber position (7) before this pair vertical axis traction rollers (7a), after be a trunnion axis roller (7b), vertical axis traction rollers (7a) and trunnion axis roller (7b) periphery are coated with abrasive rubber; Vertical axis traction rollers (7a) is driven by stepper motor (7c), and the linear velocity of vertical axis traction rollers (7a) keeps identical with the linear velocity of material-feeding rolling wheels (2c) in clamping and conveying device (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465371.8A CN102922712B (en) | 2012-11-19 | 2012-11-19 | Medium-high frequency induction heating type high-speed metal tube plastic-coating machine |
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|---|---|---|---|
| CN201210465371.8A CN102922712B (en) | 2012-11-19 | 2012-11-19 | Medium-high frequency induction heating type high-speed metal tube plastic-coating machine |
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| Publication Number | Publication Date |
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| CN102922712A CN102922712A (en) | 2013-02-13 |
| CN102922712B true CN102922712B (en) | 2015-07-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104943119A (en) * | 2015-07-10 | 2015-09-30 | 常州市帘享遮阳科技有限公司 | Energy-saving door window auxiliary frame steel plastic coating production technology |
| CN105097140B (en) * | 2015-07-23 | 2017-03-08 | 安吉腾飞电子有限公司 | Wire insulation skin process equipment |
| CN105882100B (en) * | 2016-04-13 | 2018-05-25 | 华北电力大学 | Suitable for the automatic coating unit of fluorine plastic film of metal circular tube |
| CN107471606A (en) * | 2017-09-25 | 2017-12-15 | 依合斯电梯配件(上海)有限公司 | Steel cord temperature measuring equipment |
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| CN101623921B (en) * | 2009-08-10 | 2011-11-23 | 浙江海亮股份有限公司 | Super-long copper tube plastic wrapping machine with small specification |
| CN202462899U (en) * | 2011-11-30 | 2012-10-03 | 广东联塑科技实业有限公司 | Steel-plastic composite tube production equipment |
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