CN2622741Y

CN2622741Y - Electromechanic heating roller

Info

Publication number: CN2622741Y
Application number: CN 03227607
Authority: CN
Inventors: 黄克
Original assignee: Individual
Current assignee: No84 Xinhua West Road Zhuzhou City Hunan Provi
Priority date: 2003-05-12
Filing date: 2003-05-12
Publication date: 2004-06-30
Anticipated expiration: 2013-05-12

Abstract

An electromagnetic heating roller belongs to a device which is heated by electromagnetic field. induction windings 3 are arranged in a steel roller 2 through a winding framework 6, a winding installation shaft 7 and a winding fixing device 8; the number of the induction windings 3 is more than one; each induction winding is connected with an electromagnetic controller 1 through a lead-out wire; a temperature sensor 4 is arranged at a proper position out of the roller 2, and the temperature sensor is connected with a temperature display and control device 5. The utility model has beneficial effects that the heating roller is of high thermal efficiency and good energy-saving effect; the energy-saving effect can reach over 50 percent; and the utility model is of no environment pollution and is of even temperature; in addition, the utility model can adjust the temperature curve of the heating roller according to the technical demand; only the current of the electromagnetic induction winding is needed to be changed to control the temperature of the surface of the roller, so the temperature hysteresis is small, and the temperature control accuracy is high; the electromagnetic induction winding and the electromagnetic controller are all semi-permanence elements and are of long service life, so running cost is low and maintenance work is less.

Description

The electromagnetism warm-up mill

Technical field

The utility model relates to a kind of electromagnetism warm-up mill, belongs to the device class by the electromagnetic field heating.

Background technology

The warm-up mill that present printing industry and rubber industry generally use mostly is oily warm-up mill, and there is following problem in this warm-up mill: 1, the thermal efficiency is low, and energy dissipation is serious; 2, owing to there is the problem of leakage of oil and fume pollution, environmental pollution is serious; 3, the temperature difference of roll surface is big, can not change temperature curve on the roller by technological requirement; 4, accuracy of temperature control is low, because the change of roll surface temperature will be by ability control roll temperature after the change of oil temperature, temperature hysteresis is serious, can not guarantee product quality; 5, because electrothermal tube is a fallible component, conduction oil needs regular replenishment and replacing, so the operating cost height.

Technology contents

The purpose of this utility model is to provide a kind of thermal efficiency height, non-environmental-pollution, has a narrow range of temperature, accuracy of temperature control height, electromagnetism warm-up mill that operating cost is low.Realize that the technology implementation scheme that the purpose of this utility model proposed is to utilize electromagnetic inductive heating principle by forming strong alternating magnetic field in the inner electromagnetic heating coil that is provided with of roller, this magnetic field and steel roller produce the vortex loop, and at the inner vortex shape induction current that forms of roller, this electric current changes into heat energy by the resistance of steel roller again, the roller temperature is raise rapidly, and the outer object of pair roller is heated.Be arranged on the outer thermopair pair roller temperature of roller simultaneously and detect, and output to the temperature display controller, become size to control temperature by the break-make of controlling the electromagnetic induction coil electric current.The beneficial effects of the utility model are: 1, thermal efficiency height, good energy-conserving effect; The electromagnetism warm-up mill is directly to make the roller heating, has reduced the loss of heat transfer process, and because of the thermal efficiency of electromagnetism heating own is just very high, so the electromagnetism warm-up mill is compared with former warm-up mill, energy-saving effect can reach more than 50%; 2, non-environmental-pollution problem; 3, the electromagnetism warm-up mill can adopt a plurality of electromagnetism heat induced coils, and the electric current of each coil is adjustable respectively, so the temperature homogeneity of roll surface is good, and can adjust the temperature curve of roller according to technological requirement; 4, the control roll surface temperature needs only the electric current that changes electromagnetic induction coil, so temperature hysteresis is little, and the temperature control precision height; 5, electromagnetic induction coil and electromagnetic controller are the semipermanent components and parts, and long service life does not exist and replenishes and change heat conduction wet goods problem, so operating cost is low, maintenance load is few.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model abnormity roller and electromagnetic coil structure synoptic diagram.

Each component part numbers is an electromagnetic controller 1 among the figure, roller body 2, inductive coil 3, temperature sensor 4, display temperature controller 5, coil rack 6, coil installation shaft 7, coil fixing device 8, lead-out wires of coil 9, carbon brush arrangement 10, slip-ring device 11.

Embodiment

The utility model will be further described below in conjunction with accompanying drawing, and accompanying drawing provides an embodiment of the present utility model.From accompanying drawing as can be seen, the utility model comprises electromagnetic controller 1, roller body 2, inductive coil 3, inductive coil 3 is installed in the steel roller body 2 by coil rack 6, coil installation shaft 7 and coil fixing device 8, inductive coil 3 is a plurality of, and each inductive coil 3 links to each other with an electromagnetic controller 1 or with the pair of output of electromagnetic controller 1 by lead-out wires of coil 9, and the latter i.e. a plurality of inductive coils 3 of electromagnetic controller 1 may command; In the appropriate location of roller body 2 temperature sensor 4 is installed, temperature sensor 4 links to each other with display temperature controller and electromagnetic controller 1; The electromagnetic induction coil 3 that is installed in the profiled roller links to each other with electromagnetic controller 1 with slip-ring device 11 by extension line 9, carbon brush arrangement 10, and profiled roller is that its xsect is non-circular roller, and electromagnetic controller 1 can adopt the electromagnetic controller of KJ-3 type.Its course of work is to utilize the principle of electromagnetic induction heating, and it is 20-35KH that civil power converts frequency range to by electromagnetic controller ₂High-frequency current, receive on the electromagnetic induction coil 3 through extension line 9, the high-frequency current of profiled roller is by lead-in wire 9, receive on the electromagnetic induction coil 3 to slip-ring device 11 through carbon brush arrangement 10, electromagnetic induction coil becomes high frequency magnetic field with high frequency current transitions, and the magnetic line of force of this high frequency magnetic field acts directly on the inwall of roller body 2, and constitute magnetic loops with coil 3, roller 2 is the resistance in the magnetoelectricity conversion again simultaneously, when the magnetic line of force case of high frequency magnetic field is passed roller body 2, can in roller 2, form the vortex shape induction current, and the energy of this electric current converts heat energy to by the resistance of roller body 2 again, and roller body 2 temperature are raise.This external roller outer setting detector unit 4, detect roller 2 surface temperatures in real time, and be transferred to display temperature controller 5 displays temperatures, when temperature is higher than design temperature, by reducing or turn-off the output current of electromagnetic controller 1, roller body 2 temperature are reduced, when this temperature is lower than design temperature, then make the output current increase of electromagnetic controller 1 or open electromagnetic controller, roller body 2 temperature are raise, so circulation guarantees that roller temperature is controlled in the range of set value.One cover electromagnetism warm-up mill can be made of a plurality of electromagnetic controller 1-n and a plurality of electromagnetic induction coil 3-n, adjusts the output current value of electromagnetic controller 1 respectively, can change the surface temperature curve of roller body 2, to satisfy manufacturing technique requirent.

Claims

1, a kind of electromagnetism warm-up mill, comprise electromagnetic controller (1), roller body (2), inductive coil (3), it is characterized in that described inductive coil (3) is installed in the steel roller body (2) by coil rack (6), coil installation shaft (7) and coil fixing device (8), inductive coil (3) is a plurality of, and each inductive coil links to each other with an electromagnetic controller (1) or with the pair of output of electromagnetic controller (1) by lead-out wires of coil (9).

2, electromagnetism warm-up mill according to claim 1 is characterized in that the described electromagnetic induction coil (3) that is installed in the profiled roller links to each other with electromagnetic controller (1) with slip-ring device (11) by lead-out wires of coil (9), carbon brush arrangement (10).

3, according to claim 1,2 described electromagnetism warm-up mills, it is characterized in that the appropriate location of described roller body (2) is equipped with temperature sensor (4), temperature sensor (4) links to each other with electromagnetic controller (1), temperature indicator (5).