CN107585368A - Electromagnetic induction tunnel type thermal shrinking package machine - Google Patents
Electromagnetic induction tunnel type thermal shrinking package machine Download PDFInfo
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- CN107585368A CN107585368A CN201610536169.8A CN201610536169A CN107585368A CN 107585368 A CN107585368 A CN 107585368A CN 201610536169 A CN201610536169 A CN 201610536169A CN 107585368 A CN107585368 A CN 107585368A
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- 230000005674 electromagnetic induction Effects 0.000 title claims abstract description 60
- 238000010438 heat treatment Methods 0.000 claims abstract description 82
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 230000004087 circulation Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
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- 238000004519 manufacturing process Methods 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
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- 239000010425 asbestos Substances 0.000 claims description 2
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 230000005672 electromagnetic field Effects 0.000 claims description 2
- 230000005670 electromagnetic radiation Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
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- 238000000034 method Methods 0.000 claims description 2
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- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 239000000523 sample Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 229920006300 shrink film Polymers 0.000 description 3
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Abstract
The invention discloses a kind of heat shrinkable package equipment, especially a kind of utilization rate of electrical is high, the electromagnetic induction tunnel type thermal shrinking package machine of homogeneous heating, including frame, heater, high temperature resistant heat insulation centrifugal blower, hot-air tunnel, conveying row roller, axial flow blower, chain gearing, driving motor and power-supply controller of electric, heater is provided with below described hot-air tunnel, described heater has electromagnetic induction coil, heating cylinder, heat-removal bar, magnetic conduction bar, insulating and the power-supply controller of electric composition for controlling electromagnetic induction coil.The magnetic line of force is acted on heating cylinder and heat-removal bar caused by electromagnetic induction coil, so that heater carries out heat exchange with moving air produces high-temperature hot air, hot air circulation road is additionally added in tunnel, so that hot-air can be recycled, high temperature resistant heat insulation centrifugal blower and axial flow blower can also be passed through, so that hot-air is dry and circulation is accelerated, be advantageous to heat shrinkable package.
Description
Technical field
It is especially a kind of to utilize the workable electromagnetic induction tunnel type heat of electricity the present invention relates to a kind of heat shrinkable package equipment
Shrink packaging machine.
Background technology
The thermal shrinking package machine of Chinese Introduced From Abroad earliest is in phase early 1990s, substantially utilizes heating board
Heating, the pattern of direct baking, temperature error is big, easily by heat shrink films scalding, burned, roasting broken；Complete machine structure is simple, and
And it is heavy, maintenance is cumbersome, without hot air circulation.Existing thermal shrinking package machine uses and produces hot blast and by convection current side mostly
Formula heats heat shrink films.Due to the limitation of the rate of heat addition, cause the heat time longer, so that the body of continuous production equipment
Product is huge, increases equipment investment, also increases operation difficulty.Hot blast is the dual load of heat and mass in thermal shrinking package machine
Body, Hot wet air heating should be suitably discharged to maintain the wettability power of hot blast in hot-air tunnel, hot-air tunnel is carried out again
Insulation is to reduce heat loss, so power consumption is very big.
With the continuous improvement to thermal shrinking package machine quality requirement, thermal shrinking package machine has further development,
More more advanced is generated heat from external import using infrared lamp, many that this is lighter than heating board before, and
And safeguard more convenient and quicker.Drying of the infrared ray to hot heat shrink films has enough penetration powers.Because its is simple in construction, domestic manufacturer
Production is all imitated, infrared heat shrink packaging machine has quickly reached its period of great prosperity.By use for many years, infrared heat
The problem of advantage of shrink packaging machine approved by relevant industries, but new occurs：Firstth, temperature control error is larger.Due to making more
With the control mode of contactor (may turn off when reaching design temperature, less than design temperature when start again), at this
During the temperature control of one open-one close, temperature error is larger, and in the case where it does not have hot air circulation, and local temperature error is just more
It is big；Secondth, the penetration power of infrared ray has each that (infrared ray is to dark thing for different effect to packed article different colours
Material has enough penetration powers, can flash baking；And it is very poor to the penetration power of light material, it is difficult to dry), when a batch materials
When having dark and light simultaneously, infrared heat shrink packaging machine will be felt simply helpless this.
The content of the invention
The present invention solves a kind of heat shrinkable package equipment used by its technical problem, especially a kind of utilization rate of electrical
High, the electromagnetic induction tunnel type thermal shrinking package machine of homogeneous heating, including frame, heater, high temperature resistant heat insulation centrifugal blower,
Hot-air tunnel, conveying row roller, axial flow blower, chain gearing, driving motor and power-supply controller of electric.
Further that described heater is provided with electromagnetic induction coil, heating cylinder, heat-removal bar, magnetic conduction bar, every
Hot heat-insulation layer and the power-supply controller of electric for controlling electromagnetic induction coil.The magnetic line of force acts on heating cylinder caused by electromagnetic induction coil
On heat-removal bar, so that heater carries out heat exchange with moving air produces high-temperature hot air, gone back in hot-air tunnel
Hot air circulation road is added, so that hot-air can be recycled, high temperature resistant heat insulation centrifugal blower and axle can also be passed through
Flow fan so that hot-air is dry and circulation is accelerated, and is advantageous to heat shrinkable package.
It is further that driving motor drives conveying row's roller operating in hot-air tunnel by chain gearing, defeated
Packed article is sent to carry out heat shrinkable package in hot-air tunnel, the rotating speed of driving motor is by driving motor Frequency Converter Control.
It is further that the top in hot-air tunnel is provided with the far infrared reflector towards conveying row's roller, conveying row
Roller is cylindrical to be provided with teflon sleeve, makes conveying row roller adhesion heat shrinkable package film at high temperature.
It is further that hot air circulating system is provided with hot-air tunnel, hot air circulating system includes hot air circulation road.
It is further that hot air circulation is provided with axial flow blower on road.
It is further to be coated with heat-insulation layer on the outside of hot-air tunnel.
It is further power-supply controller of electric and PLC, axial flow blower frequency converter, driving motor frequency converter, electromagnetism
Induction coil and touch-screen electrical connection.
It is further that heat-sensitive sensor is provided with hot-air tunnel, heat-sensitive sensor electrically connects with PLC.
It is further that thermocouple sensor is provided with heating cylinder, thermocouple sensor is electrically connected with PLC
Connect.
It is further that heat-sensitive sensor is by PLC through axial flow blower frequency converter adjust automatically axial flow blower
Rotating speed, make the air themperature in hot-air tunnel evenly and steadily.
The beneficial effects of the invention are as follows：By the use of electromagnetic induction heater as thermal source, electromagnetic induction heating is taken full advantage of
Heat conversion it is high, the advantages that firing rate is fast, the magnetic line of force caused by electromagnetic induction coil acts on heating cylinder and heat-removal bar
On, so that heater carries out heat exchange with moving air produces high-temperature hot air, hot air circulation road is additionally added in tunnel,
So that hot-air can be recycled, high temperature resistant heat insulation centrifugal blower and axial flow blower can also be passed through so that heat is empty
Gas is dry and circulation is accelerated, and is advantageous to heat shrinkable package, electromagnetic induction coil can be convenient to use controller control, so as to reach
To automatically controlling and overload protection.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is Fig. 1 heater enlarged drawing；
Fig. 3 is heating cylinder and heat-removal bar enlarged drawing；
Fig. 4 is heating cylinder and heat-removal bar sectional view；
Fig. 5 is electric operation control circuit figure；
Fig. 6 is control circuit connections figure.
Parts, position and numbering in figure：1. frame, 2. heaters, 3. high temperature resistant heat insulation centrifugal blowers, 4. hot-airs
Tunnel, 5. conveying row rollers, 6. axial flow blowers, 7. chain gearings, 8. driving motors, 9. power-supply controller of electric, 10. electromagnetic induction
Coil, 11. heating cylinders, 12. heat-removal bars, 13. magnetic conduction bars, 14. insulatings, 15.PLC controllers, 16. hot air circulations
Road, 17. far infrared reflectors, 18. axial flow blower frequency converters, 19. driving motor frequency converters, 20. touch-screens, 21. heat-sensitive sensors
Device, 22. thermocouple sensors, 23. screens.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention includes frame (1), heater (2), high temperature resistant heat insulation centrifugal blower (3), hot-air
Tunnel (4), conveying row's roller (5), axial flow blower (6), chain gearing (7), driving motor (8) and power-supply controller of electric (9), institute
Heater (2) is provided with below the hot-air tunnel (4) stated, described heater (2) is provided with electromagnetic induction coil
(10), heating cylinder (11), heat-removal bar (12), magnetic conduction bar (13), insulating (14) and control electromagnetic induction coil (10)
Power-supply controller of electric (9).The magnetic line of force caused by electromagnetic induction coil (10) is acted on heating cylinder (11) and heat-removal bar (12),
According to electromagnetic inductive heating principle, when heater (2) works, by leading to alternating current into electromagnetic induction coil (10), make
The electromagnetic induction coil (10) produces high speed variation magnetic field, when the magnetic line of force in magnetic field passes through heating cylinder (11) and heat-removal bar
(12) when, powerful vortex is produced, and heating cylinder (11) and heat-removal bar (12) itself are in short-circuit condition, therefore vortex is adding
Magnetic conduction conductive component is set voluntarily to generate heat at a high speed in the presence of hot cylinder (11) and heat-removal bar (12) self-resistance, it is achieved thereby that electric
The purpose to the heating of magnetic conduction conductive component can be reached with the conversion of heat energy, so that heater (2) is carried out with moving air
Heat exchange produces high-temperature hot air, hot air circulation road (16) is additionally added in hot-air tunnel (4), so that hot-air can obtain
Recycle, high temperature resistant heat insulation centrifugal blower (3) and axial flow blower (6) can also be passed through so that hot-air is dry and circulation adds
It hurry up, be advantageous to heat shrinkable package；Due to not needing other heaters to be heated, but pass through heating cylinder (11) and heat-removal bar
(12) generated heat under electromagnetic field effect by self-resistance, without space medium, the thermal losses in heat conductive process is just not present
And the electric energy loss of electric heating element itself, therefore can significantly save the energy.The electromagnetic induction coil (10) is not also generated heat,
The same loss for reducing electric energy, its service life length, stable and reliable in work, maintenance cost is low;Electromagnetic induction coil (10) can be by
The outer heat-resisting wire coiling for being cased with flexible insulated hose forms, depending on wire circle and line footpath power as needed, electromagnetic induction coil
(10) can be coiled into it is circular, square, oval etc. needed for shape.
Described driving motor (8) drives conveying row's roller (5) in hot-air tunnel (4) by chain gearing (7)
Operating, conveying packed article carry out heat shrinkable package in hot-air tunnel (4), and the rotating speed of driving motor (8) is become by driving motor
Frequency device (19) controls.
Top in described hot-air tunnel (4) is provided with the far infrared reflector (17) towards conveying row's roller (5), from
And the bottom of packed article and the heat shrinkable package film at top can be heated, so that heat shrinkable package is more equal
It is even, it is more efficient；Conveying row's roller (5) is cylindrical to be provided with teflon sleeve, conveying is arranged roller (5) adhesion heat at high temperature
Shrinkage packing film, it can also effectively prevent from corroding, so that easy to maintenance.
Hot air circulating system is provided with described hot-air tunnel (4), hot air circulating system includes hot air circulation road
(16)；Axial flow blower (6) is provided with the hot air circulation road (16).
Insulating (14) is coated with the outside of described hot-air tunnel (4), insulating (14) can be effective
Heat is prevented to be scattered and disappeared by the outer wall of hot-air tunnel (4), so that heat can be utilized preferably;For the ease of every
The installation settings of hot heat-insulation layer (14), insulating (14) thickness can be arranged as required to as different values, such as 50~
120mm, heat-insulation layer (14) material can be chosen according to concrete application conditions, such as the insulation material of asbestos, alumina silicate etc.
In Figure 5, described power-supply controller of electric (9) and PLC (15), axial flow blower frequency converter (18), transmission electricity
Machine frequency converter (19), electromagnetic induction coil (10) and touch-screen (20) electrical connection；Using one or more groups of electromagnetic induction coils
(10) serial or parallel connection shares a power-supply controller of electric (9), or the corresponding plurality of electromagnetic induction coil of multiple power-supply controller of electric (9)
(10);The power output of power-supply controller of electric (9) is 2~75KW, by rectification, inversion by the output of 20/60Hz AC power
Frequency conversion is intermediate frequency or high frequency, and preferred values uses 20~80KHz of high frequency；By changing described electromagnetic induction coil (10)
Export the power in magnetic field, the temperature of control heater (2)；Power supply can be powered with 220 volts, 380 volts of AC powers, and
Protection is realized to power-supply controller of electric (9) and electromagnetic induction coil (10) by additional overcurrent protection；Can by power-supply controller of electric (9)
Choose and export different working frequencies, only need to make appropriate change on power-supply controller of electric (9) and electromagnetic induction coil (10) quantity
, so as to increase temperature controlling range, improve the applicability of equipment.
In figure 6, heat-sensitive sensor (21), heat-sensitive sensor (21) and PLC are provided with described hot-air tunnel (4)
Controller (15) electrically connects；Thermocouple sensor (22), thermocouple sensor (22) are provided with described heating cylinder (11)
Electrically connected with PLC (15)；Described touch-screen (20) can operate and set the temperature of heater (2) in man-machine interface
Bound and the temperature bound of hot-air tunnel (4) are spent, power-supply controller of electric (9) is controlled automatically through PLC (15) regulation
Temperature；The temperature that described heat-sensitive sensor (21) tracks hot-air tunnel (4) by the programming software in PLC (15) becomes
Change, output signal drives the auxiliary reclay as switch element being connected between power-supply controller of electric (9) and PLC (15)
Or A.C. contactor, the automatic open-close control to supply line is realized, or through axial flow blower frequency converter (18) adjustable axle stream
The rotating speed of blower fan (6), make the air themperature in hot-air tunnel (4) evenly and steadily, so as to effectively realize Automatic Control,
And self-protection can be realized when temperature is too high and sends alarm signal；Heat-sensitive sensor (21) can use infrared temperature probe
Or thermocouple sensor.
For the ease of the heating of heat shrinkable package film so that heat can quickly heat heat shrinkable package film, heating dress
Put (2) and be arranged on hot-air tunnel (4) bottom, using heating cylinder (11) and heat-removal bar (12) integrative-structure, heating cylinder
(11) electromagnetic heating coil (10) and magnetic conduction bar (13) are provided with, heating cylinder (11) cavity Inner is provided with heat-removal bar (12)；It is described
Heater (2) connection high temperature resistant heat insulation centrifugal blower (3), high temperature resistant heat insulation centrifugal blower (3) connection hot-air tunnel
(4), described hot-air tunnel (4) is provided with air inlet and air outlet, air inlet and air outlet and the resistance to height of hot-air tunnel (4)
Heat-insulated centrifugal blower (3) connection of temperature, draws into hot-air circulation, the both ends feed inlet and outlet of hot-air tunnel (4) is provided with screen
(23), prevent hot-air from directly being discharged from feed inlet and outlet and causing the waste of heat.
Described electromagnetic heating coil (10) 20~80KHz of working frequency, 01 680 DEG C of operating temperature, surface temperature is small
In 60 DEG C, described electromagnetic heating coil (10) is connected with described power-supply controller of electric (9).Heating cylinder (11) is carbon steel material
Material, heat-removal bar (12), heat-removal bar (12) are transferred thermal energy to by the directly heating of electromagnetic heating coil (10) energy autonomous induction
It is evenly distributed in heating cylinder (11) cavity, is welded as a whole with heating cylinder (11), heat-removal bar (12) outer layer and cartridge heater
Body (11) internal layer is in close contact, so as to which heating cylinder (11) heat energy is passed into heat-removal bar (12), while electromagnetic heating coil
(10) it heat-removal bar (12) is produced vortex and is generated heat together with heating cylinder (11), add electromagnetic induction tunnel type heat and receive
The effect of structural compactness of contracting packing machine and storage heat energy, reduce the volume of electromagnetic induction tunnel type thermal shrinking package machine with
Manufacturing cost.
The transmission speed of heat energy and efficiency and heating cylinder (11) between described heating cylinder (11) and heat-removal bar (12)
Exchange area is directly proportional, and heat-removal bar (12) uses shaft-like, tubulose or strip carbon steel material, and the volume of heat-removal bar (12), which should be, to be added
More than the 20% of hot cylinder (11) internal cavity volume, one layer of cladding is heat-insulated between heating cylinder (11) and electromagnetic heating coil (10)
Heat-insulation layer (14), the skeleton of function of heat insulation and electromagnetic heating coil (10) is played, insulating (14) thickness is 25-
30mm。
Multiple magnetic conduction bars that described electromagnetic heating coil (10) outer layer is axially and radially installed along heating cylinder (11)
(13) closed magnetic circuit is formed with heating cylinder (11), reduces magnetic leakage and electromagnetic radiation of the electromagnetic heating coil (10) to the external world,
Add the thermal efficiency of electromagnetic induction heating.
Above-described electromagnetic induction tunnel type thermal shrinking package machine, it is good, warm to realize energy-saving and environmental protection, temperature uniformity
Spend that scope is wide, every advantage such as simple to operate, can be widely applied for the products such as timber floor, agricultural product, food, chemical industry, pharmacy
Heat shrinkable package operation.
Embodiment described above is only presently preferred embodiments of the present invention, and the practical range of the present invention is not limited with this,
Therefore all equivalence changes made according to the shape of the present invention, construction and principle, it all should be covered by protection scope of the present invention.
Claims (9)
1. electromagnetic induction tunnel type thermal shrinking package machine, including frame (1), heater (2), high temperature resistant heat insulation centrifugal blower
(3), hot-air tunnel (4), conveying row's roller (5), axial flow blower (6), chain gearing (7), driving motor (8) and power supply control
Device (9) processed, it is characterised in that：Heater (2), described heater are provided with below described hot-air tunnel (4)
(2) be provided with electromagnetic induction coil (10), heating cylinder (11), heat-removal bar (12), magnetic conduction bar (13), insulating (14) and
Control the power-supply controller of electric (9) of electromagnetic induction coil (10)；The magnetic line of force caused by electromagnetic induction coil (10) acts on cartridge heater
On body (11) and heat-removal bar (12), according to electromagnetic inductive heating principle, when heater (2) works, by electromagnetic induction line
Enclose and lead to alternating current in (10), the electromagnetic induction coil (10) is produced high speed variation magnetic field, when the magnetic line of force in magnetic field leads to
When crossing heating cylinder (11) and heat-removal bar (12), powerful vortex is produced, and heating cylinder (11) and heat-removal bar (12) are originally in
In short-circuit condition, therefore vortex makes magnetic conduction conductive component certainly in the presence of heating cylinder (11) and heat-removal bar (12) self-resistance
Row generates heat at a high speed, it is achieved thereby that the conversion of electric energy and heat energy, reaches the purpose to the heating of magnetic conduction conductive component, so that plus
Thermal (2) carries out heat exchange with moving air and produces high-temperature hot air, and hot-air tunnel is additionally added hot air circulation road in (4)
(16), so that hot-air can be recycled, high temperature resistant heat insulation centrifugal blower (3) and axial flow blower can also be passed through
(6) so that hot-air is dry and circulation is accelerated, and is advantageous to heat shrinkable package；Due to not needing other heaters to be heated, and
It is to be generated heat by heating cylinder (11) and heat-removal bar (12) under electromagnetic field effect by self-resistance, without space medium, just not
The thermal losses in heat conductive process and the electric energy loss of electric heating element itself be present, therefore can significantly save the energy;It is described
Electromagnetic induction coil (10) does not also generate heat, the same loss for reducing electric energy, its service life length, stable and reliable in work, maintenance
Cost is low;Electromagnetic induction coil (10) can be formed by the heat-resisting wire coiling for being cased with flexible insulated hose outside, wire circle and line footpath root
Depending on power is needed, electromagnetic induction coil (10) can be coiled into it is circular, square, oval etc. needed for shape.
2. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described driving motor
(8) conveying row's roller (5) operating in hot-air tunnel (4) is driven by chain gearing (7), conveying packed article is hot empty
Gas tunnel (4) carries out heat shrinkable package, and the rotating speed of driving motor (8) is controlled by driving motor frequency converter (19)；Described heat is empty
Top in gas tunnel (4) is provided with the far infrared reflector (17) towards conveying row's roller (5), so that the bottom of packed article
The heat shrinkable package film at portion and top can heat, so that heat shrinkable package is more uniform, it is more efficient；Conveying row's roller
(5) it is cylindrical to be provided with teflon sleeve, conveying is arranged roller (5) adhesion heat shrinkable package film at high temperature, can be with
Effectively prevent from corroding, so that easy to maintenance.
3. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described hot-air tunnel
(4) hot air circulating system is provided with, hot air circulating system includes hot air circulation road (16)；On the hot air circulation road (16)
It is provided with axial flow blower (6);Insulating (14), insulating (14) are coated with the outside of described hot-air tunnel (4)
Heat can be effectively prevented to be scattered and disappeared by the outer wall of hot-air tunnel (4), so that heat can be utilized preferably;
For the ease of the installation settings of insulating (14), insulating (14) thickness can be arranged as required to be different
Value, such as 50~120mm, heat-insulation layer (14) material can be chosen according to concrete application conditions, such as asbestos, alumina silicate etc
Insulation material.
4. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described power-supply controller of electric
(9) with PLC (15), axial flow blower frequency converter (18), driving motor frequency converter (19), electromagnetic induction coil (10) and
Touch-screen (20) electrically connects；One power-supply controller of electric is shared using one or more groups of electromagnetic induction coils (10) serial or parallel connection
(9), or multiple power-supply controller of electric (9) correspond to plurality of electromagnetic induction coil (10);The power output of power-supply controller of electric (9) be 2~
75KW, the output frequency of 20/60Hz AC power is converted to by intermediate frequency or high frequency by rectification, inversion, preferred values is using high
Frequently 20~80KHz；The power in magnetic field, the temperature of control heater (2) are exported by changing described electromagnetic induction coil (10)
Degree；Power supply can be powered with 220 volts, 380 volts of AC powers, and by additional overcurrent protection to power-supply controller of electric (9) and
Electromagnetic induction coil (10) realizes protection；It can be chosen by power-supply controller of electric (9) and export different working frequencies, only need to be in power supply
Appropriate change is made on controller (9) and electromagnetic induction coil (10) quantity, so as to increase temperature controlling range, is improved
The applicability of equipment.
5. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described hot-air tunnel
(4) heat-sensitive sensor (21) is provided with, heat-sensitive sensor (21) electrically connects with PLC (15)；Described heating cylinder
(11) thermocouple sensor (22) is provided with, thermocouple sensor (22) electrically connects with PLC (15)；Described touch
Screen (20) can be operated and set in man-machine interface in the temperature bound of heater (2) and the temperature of hot-air tunnel (4)
Lower limit, make power-supply controller of electric (9) temperature automatically controlled through PLC (15) regulation；Described heat-sensitive sensor (21) is controlled by PLC
The temperature change of programming software tracking hot-air tunnel (4) in device (15) processed, output signal drive and are connected to power-supply controller of electric
(9) auxiliary reclay or A.C. contactor as switch element between PLC (15), realize to supply line from
Dynamic folding control, or the rotating speed through axial flow blower frequency converter (18) adjust automatically axial flow blower (6), make hot-air tunnel (4)
Air themperature evenly and steadily, so as to effectively realize Automatic Control, and can realize self-protection when temperature is too high
And send alarm signal；Heat-sensitive sensor (21) can use infrared temperature probe or thermocouple sensor.
6. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described heater
(2) hot-air tunnel (4) bottom is arranged on, using heating cylinder (11) and heat-removal bar (12) integrative-structure, heating cylinder (11)
Electromagnetic heating coil (10) and magnetic conduction bar (13) are provided with, heating cylinder (11) cavity Inner is provided with heat-removal bar (12)；Described adds
Thermal (2) connection high temperature resistant heat insulation centrifugal blower (3), high temperature resistant heat insulation centrifugal blower (3) connection hot-air tunnel (4), institute
The hot-air tunnel (4) stated is provided with air inlet and air outlet, the air inlet and air outlet and high temperature resistant heat insulation of hot-air tunnel (4)
Centrifugal blower (3) connects, and draws into hot-air circulation, and the both ends feed inlet and outlet of hot-air tunnel (4) is provided with screen (23), prevents
Only hot-air is directly discharged from feed inlet and outlet and causes the waste of heat.
7. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described Electromagnetic Heating line
(10) 20~80KHz of working frequency, 01 680 DEG C of operating temperature are enclosed, surface temperature is less than 60 DEG C, described electromagnetic heating coil
(10) it is connected with described power-supply controller of electric (9);Heating cylinder (11) is carbon steel material, passes through electromagnetic heating coil (10) energy
Autonomous induction directly generates heat and transfers thermal energy to heat-removal bar (12), and heat-removal bar (12) is evenly distributed on heating cylinder (11) cavity
It is interior, it is welded as a whole with heating cylinder (11), heat-removal bar (12) outer layer is in close contact with heating cylinder (11) internal layer, so as to add
Hot cylinder (11) heat energy passes to heat-removal bar (12), at the same electromagnetic heating coil (10) can also make heat-removal bar (12) produce vortex and
Generated heat with together with heating cylinder (11), add the structural compactness and storage heat energy of electromagnetic induction tunnel type thermal shrinking package machine
The effect of, reduce the volume and manufacturing cost of electromagnetic induction tunnel type thermal shrinking package machine.
8. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described heating cylinder
(11) transmission speed of heat energy and efficiency are directlyed proportional to heating cylinder (11) exchange area between heat-removal bar (12), heat-removal bar
(12) shaft-like, tubulose or strip carbon steel material are used, the volume of heat-removal bar (12) should be heating cylinder (11) internal cavity volume
More than 20%, between heating cylinder (11) and electromagnetic heating coil (10) coat one layer of insulating (14), rise insulation
Effect and the skeleton of electromagnetic heating coil (10), insulating (14) thickness is 25-30mm.
9. electromagnetic induction tunnel type thermal shrinking package machine as claimed in claim 1, it is characterised in that：Described Electromagnetic Heating line
Circle (10) outer layer is formed with heating cylinder (11) along multiple magnetic conduction bars (13) that heating cylinder (11) is axially and radially installed and closed
Magnetic circuit, reduce magnetic leakage and electromagnetic radiation of the electromagnetic heating coil (10) to the external world, add the thermal efficiency of electromagnetic induction heating.
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| CN201610536169.8A CN107585368A (en) | 2016-07-10 | 2016-07-10 | Electromagnetic induction tunnel type thermal shrinking package machine |
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| CN201610536169.8A CN107585368A (en) | 2016-07-10 | 2016-07-10 | Electromagnetic induction tunnel type thermal shrinking package machine |
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Effective date of registration: 20191218 Address after: 213102 Lingtong group yard, 397 Changhong East Road, Yaoguan Town, Wujin District, Changzhou City, Jiangsu Province Applicant after: Changzhou landi Technology Co.,Ltd. Address before: 213102, No. 4, Pan Pan Village, remote view Town, Wujin District, Jiangsu, Changzhou Applicant before: Jin Yadong |
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Application publication date: 20180116 |