CN101890783A - PVC foamed plastic heating method and device in production of filter - Google Patents
PVC foamed plastic heating method and device in production of filter Download PDFInfo
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- CN101890783A CN101890783A CN2009100396385A CN200910039638A CN101890783A CN 101890783 A CN101890783 A CN 101890783A CN 2009100396385 A CN2009100396385 A CN 2009100396385A CN 200910039638 A CN200910039638 A CN 200910039638A CN 101890783 A CN101890783 A CN 101890783A
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Abstract
The invention relates to a PVC foamed plastic heating method and device in the production of the filter, wherein PVC material to be foamed is placed in a mould and the mould is placed on a flat plate. The invention is characterized in that the mould is prepared from iron series metal for coil heating, the flat plate for holding the mould is prepared from material with good heat-insulating property, and the flat plate arranged on the middle part of the coil is provided with a temperature sensor. Therefore, the mould is placed on the flat plate on the coil so that the coil is energized to generate an alternating magnetic field, generate eddy-current in the mould and heat the mould, and the mould is used to heat PVC material to foam. The temperature sensor can also transmit the temperature of the mould to a controller, thus automatically controlling the temperature of the mould. As only the mould is heated and the flat plate is made of thermal insulating material, only the sides of the mould dissipate more heat to the air, the inefficient heat dissipating capacity is greatly reduced and the power usage effectiveness is increased.
Description
Affiliated technical field
The present invention relates to the heating means and the device of PVC foaming in a kind of cleaner production.
Background technology
When producing the filter core of air filter, some kind is the PVC of filter paper with foaming will be wrapped up.And foaming PVC all is directly mould to be heated with heating plate at present, it is actually, and earlier the heating heating plate is again by the heating plate heating mould, and these heating plates are a bulk of, be used to put mould only some, heating plate directly is exposed in the air simultaneously, and a lot of heats have all been wasted.
Summary of the invention
In order to overcome the deficiency of the heating means of PVC foaming in the existing cleaner production, the heating means and the device that the purpose of this invention is to provide PVC foaming in a kind of cleaner production, it can a heating mould and the PVC material, has reduced invalid heat dissipation capacity, has improved utilization rate of electrical.
The technical solution adopted for the present invention to solve the technical problems is: the heating means and the device of PVC foaming during a kind of cleaner is produced, and the PVC that will foam material is positioned in the mould, and mould then is placed on the flat board.It is characterized in that: by the mould that coil heats is made with Ferrious material, be provided with coil below the flat board, the flat board of placing mould adopts the good material manufacturing of heat-proof quality, on the flat board of coil middle upper portion temperature sensor is arranged.Like this, mould is positioned on the flat board of coil top, then coil electricity produces alternating magnetic field and produces eddy current to mold heated in mould, and mould then allows the heating of PVC material its foaming.Temperature sensor wherein also can be passed to controller with the temperature of mould, thereby realizes control mold temperature automatically.Since its heating mould, and flat board is the heat-insulating material manufacturing, and it can have only the mould side more to what air dispelled the heat, greatly reduces invalid heat dissipation capacity, has improved utilization rate of electrical.
The invention has the beneficial effects as follows, effectively improved utilization rate of electrical, saved cost.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of first embodiment part of the present invention.
Fig. 2 is the circuit diagram of a heating unit of first embodiment of the present invention.
1. flat boards among the figure, 2. coil, 3. temperature sensor, 4. spring, 5. holding wire, 6. electric wire, 7. base plate, 8. mould, 9. controller, 10. relay contact, 11. relay coils, 12 transformers, 13. triodes, 14.IC, 15. voltage-stablizers.
Fig. 1 is the schematic diagram of first embodiment part (2 unit), and this embodiment device is composed of multiple units.Among the figure, dull and stereotyped (1) adopts the good material manufacturing of heat-proof quality, coil (2) places below the flat board (1), (1) has temperature sensor (3) on the flat board of coil (2) middle upper portion, there is spring (4) in temperature sensor (3) bottom, to guarantee when mould (8) is placed on the flat board (1) the tight mould (8) of temperature sensor (3) energy card; Holding wire (5) is used for the state of temperature sensor (3) is passed to controller (9), and electric wire (6) then is to power to coil (2).Like this, mould (8) is positioned on the flat board (1) of coil (2) top, and then coil (2) energising produces alternating magnetic field, and it can produce eddy current to mould (8) heating in mould (8), and mould (8) heats the PVC material allows its foaming.Temperature sensor wherein (3) can be passed to controller (9) with the temperature of mould (8), thereby realizes control mould (8) temperature automatically.Because its heating mould (8), and dull and stereotyped (1) is the heat-insulating material manufacturing, whole device to the air heat radiation maximum have only mould (8) side, greatly reduce the invalid heat dissipation capacity of device, improved utilization rate of electrical.
Among Fig. 2, power supply is after the rectification of transformer (12) transformation and back, filtering, again through three terminal regulator (15) voltage stabilizing, the output galvanic current is given IC (14) and relay coil (11) etc., IC (15) and peripheral cell are formed comparator, when the parameter of temperature sensor (3) changes to certain value, the output pin of comparator correspondence can overturn and allow triode (13) conducting, drive relay coil (11) attracting electric relay contact (10) and give coil (2) energising, mould (8) is heated thereby produce alternating magnetic field.And when mould (8) temperature rose to setting value, the parameter of temperature sensor (3) can change to another setting value, and the output pin of comparator correspondence can overturn again, and triode (13) ends, and relay contact (10) disconnects, and mould (8) is not heated.Thereby realize the temperature of control mould automatically.
Adopt this kind method to allow the PVC material foam, mould must adopt the Ferrious material manufacturing.Consider employee's health simultaneously, alternating magnetic field adopts power frequency as far as possible during design.Its whole device, is also better safeguarded so this device lifetime is longer owing to a heating mould.And most importantly greatly reduce the invalid heat dissipation capacity of device, improved utilization rate of electrical.
Claims (4)
1. the heating means and the device of PVC foaming during a cleaner is produced, the PVC that will foam material is positioned in the mould, and mould then is placed on the flat board.It is characterized in that: by the mould of coil heats with the Ferrious material manufacturing.
2. the heater of PVC foaming is characterized in that: be provided with coil below the flat board during cleaner according to claim 1 was produced.
3. the heater of PVC foaming during cleaner according to claim 1 is produced is characterized in that: the flat board of placing mould adopts the good material manufacturing of heat-proof quality.
4. the heater of PVC foaming is characterized in that: on the flat board of coil middle upper portion temperature sensor is arranged during cleaner according to claim 1 was produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100396385A CN101890783A (en) | 2009-05-20 | 2009-05-20 | PVC foamed plastic heating method and device in production of filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100396385A CN101890783A (en) | 2009-05-20 | 2009-05-20 | PVC foamed plastic heating method and device in production of filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101890783A true CN101890783A (en) | 2010-11-24 |
Family
ID=43100198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100396385A Pending CN101890783A (en) | 2009-05-20 | 2009-05-20 | PVC foamed plastic heating method and device in production of filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101890783A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128901A (en) * | 2013-03-06 | 2013-06-05 | 童鸿程 | Electromagnetic heating type foaming or pre-foaming method and device as well as heating barrel thereof |
| CN105183035A (en) * | 2015-08-10 | 2015-12-23 | 芜湖瑞泰精密机械有限公司 | Industrial temperature acquisition control circuit |
-
2009
- 2009-05-20 CN CN2009100396385A patent/CN101890783A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128901A (en) * | 2013-03-06 | 2013-06-05 | 童鸿程 | Electromagnetic heating type foaming or pre-foaming method and device as well as heating barrel thereof |
| CN103128901B (en) * | 2013-03-06 | 2016-04-06 | 童鸿程 | Electromagnetic heating type foaming or prefoam method, device and thermotank thereof |
| CN105183035A (en) * | 2015-08-10 | 2015-12-23 | 芜湖瑞泰精密机械有限公司 | Industrial temperature acquisition control circuit |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |