CN110941118B - Lamp tube illumination control method of ultraviolet baking oven and ultraviolet baking oven - Google Patents
Lamp tube illumination control method of ultraviolet baking oven and ultraviolet baking oven Download PDFInfo
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- CN110941118B CN110941118B CN201911096396.3A CN201911096396A CN110941118B CN 110941118 B CN110941118 B CN 110941118B CN 201911096396 A CN201911096396 A CN 201911096396A CN 110941118 B CN110941118 B CN 110941118B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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Abstract
The lamp tube illumination control method of the ultraviolet baking oven comprises the following steps: the method comprises an ultraviolet baking oven providing step, an ultraviolet lamp tube illumination sensing step, an illumination judging and adjusting step and a periodic cycle sensing step. The control method senses the illuminance value of each ultraviolet lamp tube in the ultraviolet baking oven through the ultraviolet sensor and adjusts the output power of the ultraviolet lamp tubes with the illuminance values outside the preset range, thereby maintaining the baking efficiency stability of the ultraviolet baking oven.
Description
Technical Field
The present invention relates to a method for controlling lamp illuminance, and more particularly to a method for controlling lamp illuminance of an ultraviolet baking oven and an ultraviolet baking oven, which can adjust and control ultraviolet illuminance of the ultraviolet baking oven to maintain baking quality of a glass substrate of a display panel by the ultraviolet baking oven.
Background
In the field of Thin Film Transistor Liquid Crystal Display (TFT-LCD), a Liquid Crystal Alignment UV Oven (LC Photo-Alignment UVO) process mainly irradiates a glass substrate of a Display panel with ultraviolet light having a main wavelength of 313nm to complete polymerization of residual monomers (Monomer) in the Display panel, so as to improve a static contrast effect of the Display panel. 40 lamps (Lamp) are arranged in each layer of baking chamber of the existing 8.5 th generation (G8.5) ultraviolet baking oven, 122 lamps are arranged in each layer of baking chamber of the 11 th generation (G11) ultraviolet baking oven, and the baking chambers are arranged in two rows, namely a left row and a right row, and each row is respectively provided with 61 ultraviolet lamps, so that the number of the ultraviolet lamps is increased by 3 times compared with that of the G8.5 ultraviolet lamps. Since the number of the ultraviolet lamps of the G11 ultraviolet baking oven is greatly increased, the number of the deteriorated and failed ultraviolet lamps is increased. In addition, the quality and the service life of different ultraviolet lamp tubes are different, so that the illumination of different ultraviolet lamp tubes is different, and the baking efficiency of the ultraviolet baking oven is unstable. Therefore, it is an important issue to monitor and adjust the illuminance of all the uv lamps so that the uv baking oven can provide stable baking performance.
Therefore, it is necessary to provide a method for controlling the illuminance of the lamp in the ultraviolet baking oven to solve the problems of the prior art.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling the illuminance of a lamp tube of an ultraviolet baking oven and an ultraviolet baking oven, so as to solve the problem that the baking efficiency of the ultraviolet baking oven is unstable due to the difference in the illuminance of different ultraviolet lamp tubes caused by the difference in the quality and the service life of different ultraviolet lamp tubes of the ultraviolet baking oven in the prior art.
The invention mainly aims to provide a method for controlling the illuminance of a lamp tube of an ultraviolet baking oven, which comprises the following steps:
an ultraviolet baking oven providing step, including providing an ultraviolet baking oven, wherein the ultraviolet baking oven includes a plurality of layers of baking chambers, a plurality of ultraviolet lamp tube assemblies, and a numerical recording and calculating device, wherein the plurality of ultraviolet lamp tube assemblies are respectively disposed in the plurality of layers of baking chambers, each ultraviolet lamp tube assembly includes two ultraviolet lamp tube rows that are mutually parallel from left to right, each ultraviolet lamp tube row includes a plurality of ultraviolet lamp tubes, each ultraviolet lamp tube has a preset illuminance value, at least one ultraviolet sensor is disposed in each ultraviolet lamp tube row for sensing the illuminance values of the plurality of ultraviolet lamp tubes, and the numerical recording and calculating device is electrically connected with all ultraviolet lamp tubes and all ultraviolet sensors for recording the illuminance values sensed by the ultraviolet sensors;
an ultraviolet lamp tube illumination sensing step, which comprises sensing all illumination values of all ultraviolet lamp tubes by the at least one ultraviolet sensor, transmitting all the illumination values to the numerical value recording and calculating device, recording all the illumination values by the numerical value recording and calculating device, and setting a normal operation illumination range according to all the illumination values;
judging and adjusting the illumination, including judging whether the illumination value of each ultraviolet lamp tube is in the normal operation illumination range; if yes, the numerical value recording and operation device does not adjust the output power of the ultraviolet lamp tube; if not, the numerical value recording and computing device adjusts the output power of the ultraviolet lamp tube to adjust and control the illuminance value of the ultraviolet lamp tube until the illuminance value is within the normal operation illuminance range; and
a periodic cycle sensing step, which comprises setting a sensing period on the numerical value recording and computing device, and when the lighting time of the plurality of ultraviolet lamps reaches the sensing period, executing the illumination judging and adjusting step to judge whether the illumination value of each ultraviolet lamp is in the normal operation illumination range; if yes, the numerical value recording and operation device is adjusted to prolong the sensing period; if not, the numerical value recording and operation device is adjusted to shorten the sensing period.
In a preferred embodiment of the present invention, a normal operation illuminance range is set according to all the illuminance values, a maximum value and a minimum value are selected from all the illuminance values of each ultraviolet lamp tube, a maximum illuminance average value and a minimum illuminance average value of all the ultraviolet lamp tubes are calculated, and the normal operation illuminance range is set, wherein the normal operation illuminance range takes the maximum illuminance average value and the minimum illuminance average value as an upper limit and a lower limit of the range.
In a preferred embodiment of the present invention, the at least one ultraviolet sensor on each ultraviolet lamp tube row is plural, and the plural ultraviolet sensors correspond to the plural ultraviolet lamps in number.
In a preferred embodiment of the present invention, the at least one ultraviolet sensor on each ultraviolet lamp tube row is one, and the ultraviolet sensor is movably disposed on the corresponding ultraviolet lamp tube row and is movable to a position aligned with any ultraviolet lamp tube on the ultraviolet lamp tube row to sense the ultraviolet lamp tube.
In a preferred embodiment of the present invention, the numerical recording and calculating device is a computer device and includes a processor and a memory.
In a preferred embodiment of the present invention, each of the ultraviolet lamps is electrically connected to a ballast, and the numerical recording and computing device is electrically connected to the ballast for adjusting the ballast to change the output power of the ultraviolet lamp and accordingly change the illuminance value of the ultraviolet lamp.
In a preferred embodiment of the present invention, the numerical value recording and computing device is adjusted to extend the sensing period twice as long as it was adjusted previously.
In the preferred embodiment of the present invention, the adjustment of the numerical recording and computing device is shortened to one-half of the previous adjustment when the sensing period is shortened.
Another object of the present invention is to provide an ultraviolet ray baking oven, comprising:
the device comprises a plurality of layers of baking chambers, a plurality of ultraviolet lamp tube assemblies and a numerical value recording and calculating device, wherein the plurality of ultraviolet lamp tube assemblies are respectively arranged in the plurality of layers of baking chambers, each ultraviolet lamp tube assembly comprises two ultraviolet lamp tube rows which are mutually parallel from left to right, each ultraviolet lamp tube row comprises a plurality of ultraviolet lamp tubes, each ultraviolet lamp tube has a preset illumination value, each ultraviolet lamp tube row is provided with at least one ultraviolet sensor for sensing the illumination values of the plurality of ultraviolet lamp tubes, and the numerical value recording and calculating device is electrically connected with all the ultraviolet lamp tubes and all the ultraviolet sensors and is used for recording the illumination values sensed by the ultraviolet sensors;
the at least one ultraviolet sensor senses all illuminance values of all ultraviolet lamps and transmits the all illuminance values to the numerical value recording and calculating device, and the numerical value recording and calculating device records all the illuminance values and sets a normal operation illuminance range according to all the illuminance values;
the ultraviolet baking oven further comprises an illumination judging and adjusting module, wherein the illumination judging and adjusting module judges whether the illumination value of each ultraviolet lamp tube is within the normal operation illumination range or not; if yes, the numerical value recording and operation device does not adjust the output power of the ultraviolet lamp tube; if not, the numerical value recording and computing device adjusts the output power of the ultraviolet lamp tube to adjust and control the illuminance value of the ultraviolet lamp tube until the illuminance value is within the normal operation illuminance range; and
the ultraviolet baking oven comprises a numerical value recording and computing device, an illuminance judging and adjusting module and a control module, wherein a sensing period is set on the numerical value recording and computing device, and when the lighting time of the plurality of ultraviolet lamps reaches the sensing period, the illuminance judging and adjusting module is executed to judge whether the illuminance value of each ultraviolet lamp falls within the normal operation illuminance range; if yes, the numerical value recording and operation device is adjusted to prolong the sensing period; if not, the numerical value recording and operation device is adjusted to shorten the sensing period;
setting a normal operation illumination range according to all the illumination values, selecting a maximum value and a minimum value from all the illumination values of all the ultraviolet lamp tubes, calculating a maximum illumination average value and a minimum illumination average value of all the ultraviolet lamp tubes, and setting the normal operation illumination range, wherein the normal operation illumination range takes the maximum illumination average value and the minimum illumination average value as an upper range limit and a lower range limit;
wherein, the numerical value recording and calculating device is a computer device and comprises a processor and a memory;
the numerical value recording and computing device is electrically connected with the ballast and is used for adjusting the ballast to change the output power of the ultraviolet lamp tube and accordingly change the illuminance value of the ultraviolet lamp tube.
Another objective of the present invention is to provide a method for controlling the illuminance of a lamp in an ultraviolet baking oven, comprising:
an ultraviolet baking oven providing step, including providing an ultraviolet baking oven, wherein the ultraviolet baking oven includes a plurality of layers of baking chambers, a plurality of ultraviolet lamp tube assemblies, and a numerical recording and calculating device, wherein the plurality of ultraviolet lamp tube assemblies are respectively disposed in the plurality of layers of baking chambers, each ultraviolet lamp tube assembly includes two ultraviolet lamp tube rows that are mutually parallel from left to right, each ultraviolet lamp tube row includes a plurality of ultraviolet lamp tubes, each ultraviolet lamp tube has a preset illuminance value, at least one ultraviolet sensor is disposed in each ultraviolet lamp tube row for sensing the illuminance values of the plurality of ultraviolet lamp tubes, and the numerical recording and calculating device is electrically connected with all ultraviolet lamp tubes and all ultraviolet sensors for recording the illuminance values sensed by the ultraviolet sensors;
establishing an ultraviolet lamp illuminance attenuation curve chart, including establishing the ultraviolet lamp illuminance attenuation curve chart according to experimental data;
and adjusting the output power of each ultraviolet lamp in real time by the numerical value recording and calculating device according to the recession degree of each ultraviolet lamp in the ultraviolet lamp illumination attenuation curve graph so as to enable the illumination value of each ultraviolet lamp to be within a normal operation illumination range set in the numerical value recording and calculating device.
Compared with the prior art, the lamp tube illumination control method of the ultraviolet baking oven and the ultraviolet baking oven can sense whether the illumination value of the ultraviolet lamp tube falls within the normal operation illumination range or not, and further determine whether to adjust the output power of the ultraviolet lamp tube to be within the normal operation illumination range or not. Therefore, the invention can solve the problem that the quality and the service life of different ultraviolet lamp tubes of the ultraviolet baking oven in the prior art are different, so that the illumination of different ultraviolet lamp tubes is different, and the baking efficiency of the ultraviolet baking oven is unstable finally, and can maintain the stability of the baking efficiency of the ultraviolet baking oven, thereby improving the product yield of display panels.
In order to make the aforementioned and other objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below:
drawings
Fig. 1A is a flowchart of the steps of the method for controlling the illuminance of the lamp tube of the ultraviolet baking oven according to embodiment 1 of the present invention.
FIG. 1B is a flowchart illustrating the steps of a method for controlling the lamp illumination of an ultraviolet baking oven according to embodiment 2 of the present invention.
Fig. 2 is a side sectional view of the ultraviolet baking oven 1 of the present invention.
Fig. 3 is a top view of an ultraviolet lamp tube assembly 30 of the ultraviolet baking oven 1 of the present invention.
Fig. 4 is a top view of another ultraviolet lamp tube assembly 30 of the ultraviolet baking oven 1 of the present invention.
FIG. 5 is a schematic diagram of the connection between the numerical value recording and calculating device 50 and the ultraviolet lamp 35 according to the present invention.
Detailed Description
Referring to fig. 1A, the embodiment 1 of the method for controlling the illuminance of the lamp in the ultraviolet baking oven of the present invention comprises: the ultraviolet baking oven providing step S01, the ultraviolet lamp illuminance sensing step S02, the illuminance determining and adjusting step S03, and the periodic cycle sensing step S04.
Referring to fig. 2 to 4, the step S01 of providing the ultraviolet baking oven includes providing an ultraviolet baking oven 1, wherein the ultraviolet baking oven 1 includes a plurality of layers of baking chambers 10, a plurality of ultraviolet lamp tube assemblies 30, and a numerical recording and calculating device 50, wherein the baking chambers 10 are used for placing a glass substrate of a display panel to bake the glass substrate, the plurality of ultraviolet lamp tube assemblies 30 are respectively disposed in the plurality of layers of baking chambers 10, each ultraviolet lamp tube assembly 30 includes two ultraviolet lamp tube rows 300 arranged side by side left and right, each ultraviolet lamp tube 35 row includes a plurality of ultraviolet lamps 35, each ultraviolet lamp tube 35 has a preset illuminance value (Default), for example, 0.4mw/cm2. The preset illuminance value is a specification illuminance value of the ultraviolet lamp 35, and is also an ideal illuminance value during operation. However, the actual illuminance value of each of the uv lamps 35 may deviate from the predetermined illuminance value, and the actual illuminance value of the uv lamps 35 may deviate from the predetermined illuminance value due to attenuation when operating for a certain period of time. In addition, at least one ultraviolet Sensor (UV Sensor)37 is disposed in each of the ultraviolet lamps 35For sensing the illuminance of the ultraviolet lamps 35. The numerical recording and computing device 50 is electrically connected to all the ultraviolet lamps 35 and all the ultraviolet sensors 37, and is used for recording the illuminance values sensed by the ultraviolet sensors 37.
Referring to fig. 3, in the preferred embodiment of the present invention, the at least one ultraviolet sensor 37 in each ultraviolet lamp 35 row is plural, and the plural ultraviolet sensors 37 correspond to the plural ultraviolet lamps 35 in number.
Referring to fig. 4, in the preferred embodiment of the present invention, there is one ultraviolet sensor 37 in each ultraviolet lamp 35 row, and the ultraviolet sensor 37 is movably disposed on the corresponding ultraviolet lamp 35 row and can be moved to a position aligned with any ultraviolet lamp 35 in the ultraviolet lamp 35 row to sense the ultraviolet lamp 35.
Referring to fig. 5, in the preferred embodiment of the present invention, the numerical recording and calculating device 50 is a computer device and includes a processor and a memory.
In the preferred embodiment of the present invention, each of the ultraviolet lamps 35 is electrically connected to a ballast 36, and the numerical recording and computing device 50 is electrically connected to the ballast 36 for adjusting the ballast 36 to change the output power of the ultraviolet lamps 35 and accordingly change the illuminance value of the ultraviolet lamps 35.
The ultraviolet lamp illumination sensing step S02 includes sensing all illumination values of the ultraviolet lamps 35 by the at least one ultraviolet sensor 37, and transmitting the all illumination values to the numerical recording and computing device 50, where the numerical recording and computing device 50 records all illumination values and sets a normal operation illumination range according to the all illumination values.
In the preferred embodiment of the present invention, a normal operation illumination range is set according to all the illumination values, a maximum value (Max) and a minimum value (Min) are selected from all the illumination values of each of the ultraviolet lamps 35, and an average value of the maximum illumination of all the ultraviolet lamps 35 is calculated(AveMax) (average of maximum values of illuminance values of all ultraviolet lamps 35, for example, 0.43mw/cm2) Minimum illuminance average (AveMin) (average of minimum values of all the ultraviolet lamps 35, for example, 0.37mw/cm2), and uniformity ((AveMax + AveMin-2. Default)/Default), and a normal operation illuminance range (for example, 0.37 mw/cm)2To 0.43mw/cm2) The normal operation illumination range takes the maximum illumination average value (AveMax) and the minimum illumination average value (AveMin) as the upper limit and the lower limit of the range. Examples of the maximum, minimum, uniformity, and normal operating illumination ranges are shown in the following table.
Watch 1
The illumination determination and adjustment step S03 includes determining whether the illumination value of each of the ultraviolet lamps 35 falls within the normal operation illumination range; if yes, the numerical value recording and computing device 50 does not adjust the output power (i.e., the illuminance value) of the ultraviolet lamp 35, and the numerical value recording and computing device 50 externally sends a signal of normal operation so as to inform a user that the illuminance of the layer baking chamber 10 of the ultraviolet baking oven 1 meets the illuminance requirement of the product, so that the product can be developed; if not (i.e. the illuminance value scanned by the uv sensor 37 does not fall within the normal operating illuminance range), the numerical recording and computing device 50 adjusts the output power of the uv lamp 35 to adjust and control the illuminance value of the uv lamp 35 until the illuminance value falls within the normal operating illuminance range.
In the preferred embodiment of the present invention, the illumination determination and adjustment step S03 can be performed by an illumination determination and adjustment module, which can be a computer device and includes a processor and a memory. The periodic cycle sensing step S04 includes setting a sensing period on the numerical recording and computing device 50, and when the lighting time of the plurality of ultraviolet lamps 35 reaches the sensing period, for example, 3 hours, executing the illuminance determining and adjusting step S03 to determine whether the illuminance value of each of the ultraviolet lamps 35 falls within the normal operating illuminance range; if so, the numerical recording and computing device 50 adjusts the sensing period to be extended, for example, twice as long as before, for example, 6 hours; if not, the value recording and computing device 50 adjusts the sensing period to be shortened, for example, to be one-half of the previous sensing period, for example, 3 hours. By analogy, the time of the sensing period can be set according to the requirement. In addition, in order to prevent the influence of the output power of the ultraviolet lamp 35 on the product quality caused by adjusting the stabilizer 36 of the ultraviolet lamp 35 when the glass substrate of the display panel is baked in the ultraviolet baking oven 1, when the glass substrate is set for exchanging sheets, the ultraviolet sensor 37 starts to automatically correct after the glass substrate reaches the baking time and is discharged, and the illumination meets the set requirement, and then the next glass substrate can enter.
Referring to fig. 1B, the embodiment 2 of the lamp illuminance control method for the ultraviolet baking oven according to the present invention controls the illuminance value according to the lifetime of the ultraviolet lamp 35, and includes an ultraviolet baking oven providing step S01, an ultraviolet lamp illuminance attenuation curve establishing step S05, and an adjusting step S06.
The ultraviolet baking oven providing step S01 is the same as the ultraviolet baking oven providing step S01 of embodiment 1.
Referring to fig. 5, fig. 5 is a graph showing the illuminance attenuation when the ultraviolet lamps 35(Lamp B, Lamp C) are lit for 2800 hours.
The ultraviolet lamp illuminance attenuation curve establishing step S05 includes establishing an illuminance attenuation curve of the ultraviolet lamp 35 according to experimental data. From the graph of the attenuation of the illuminance of the ultraviolet lamp 35, it can be seen that the attenuation of the ultraviolet lamp 35 is relatively fast 500 hours before lighting, the attenuation is basically constant from 500 hours to 1700 hours when lighting, and the attenuation is basically constant from 1700 hours to 2800 hours when lighting.
In the adjusting step S06, the numerical recording and computing device 50 adjusts the output power of each uv lamp 35 in real time according to the degradation degree of each uv lamp 35 in the illuminance attenuation curve of the uv lamp 35, so that the illuminance value of each uv lamp falls within a normal operation illuminance range set in the numerical recording and computing device 50. For example, when the number of lighting hours is 500 hours to 1700 hours, an output power of the ultraviolet lamp 35 can be maintained to keep the illuminance value within the normal operation illuminance range. Similarly, the number of lighting hours can be 1700 hours to 2800 hours, and the output power of the ultraviolet lamp 35 can be maintained, so as to keep the illumination value within the normal operation illumination range, and so on.
Compared with the prior art, the lamp illuminance control method of the ultraviolet baking oven and the ultraviolet baking oven can sense whether the illuminance value of the ultraviolet lamp 35 falls within the normal operation illuminance range, and further determine whether to adjust the output power of the ultraviolet lamp 35 to the normal operation illuminance range. Therefore, the invention can solve the problem that the quality and the service life of different ultraviolet lamp tubes 35 of the ultraviolet baking oven 1 in the prior art are different, so that the illumination of different ultraviolet lamp tubes 35 is different, and the baking efficiency of the ultraviolet baking oven 1 is unstable finally, and can maintain the stability of the baking efficiency of the ultraviolet baking oven 1, thereby improving the product yield of display panels.
Claims (9)
1. A method for controlling the illumination of a lamp tube of an ultraviolet baking oven is characterized by comprising the following steps:
an ultraviolet baking oven providing step, including providing an ultraviolet baking oven, wherein the ultraviolet baking oven includes a plurality of layers of baking chambers, a plurality of ultraviolet lamp tube assemblies, and a numerical value recording and calculating device, wherein the plurality of ultraviolet lamp tube assemblies are respectively disposed in the plurality of layers of baking chambers, each ultraviolet lamp tube assembly includes two ultraviolet lamp tube rows that are mutually parallel, each ultraviolet lamp tube row includes a plurality of ultraviolet lamp tubes, each ultraviolet lamp tube has a preset illuminance value, at least one ultraviolet sensor is disposed in each ultraviolet lamp tube row for sensing the illuminance values of the plurality of ultraviolet lamp tubes, the numerical value recording and calculating device is electrically connected with all ultraviolet lamp tubes and all ultraviolet sensors for recording the illuminance values sensed by the ultraviolet sensors;
an ultraviolet lamp tube illumination sensing step, which comprises sensing all illumination values of all ultraviolet lamp tubes by the at least one ultraviolet sensor, transmitting all the illumination values to the numerical value recording and calculating device, recording all the illumination values by the numerical value recording and calculating device, and setting a normal operation illumination range according to all the illumination values;
judging and adjusting the illumination, including judging whether the illumination value of each ultraviolet lamp tube is in the normal operation illumination range; if yes, the numerical value recording and operation device does not adjust the output power of the ultraviolet lamp tube; if not, the numerical value recording and computing device adjusts the output power of the ultraviolet lamp tube to adjust and control the illuminance value of the ultraviolet lamp tube until the illuminance value is within the normal operation illuminance range; and
a periodic cycle sensing step, which comprises setting a sensing period on the numerical value recording and computing device, and when the lighting time of the plurality of ultraviolet lamps reaches the sensing period, executing the illumination judging and adjusting step to judge whether the illumination value of each ultraviolet lamp is in the normal operation illumination range; if yes, the numerical value recording and operation device is adjusted to prolong the sensing period; if not, the numerical value recording and operation device is adjusted to shorten the sensing period.
2. The lamp illumination control method of the ultraviolet baking oven as claimed in claim 1, wherein a normal operation illumination range is set according to all the illumination values, wherein a maximum value and a minimum value are selected from all the illumination values of each ultraviolet lamp, a maximum illumination average value and a minimum illumination average value of all the ultraviolet lamps are calculated, and the normal operation illumination range is set, wherein the normal operation illumination range uses the maximum illumination average value and the minimum illumination average value as an upper limit and a lower limit of the range.
3. The method of claim 1, wherein the at least one UV sensor is disposed in a plurality of rows, and the plurality of UV sensors corresponds to the plurality of UV lamps.
4. The method of claim 1, wherein said at least one uv sensor is disposed on each of said uv lamp tube rows, and is movable to a position aligned with any one of said uv lamps on said uv lamp tube rows for sensing said uv lamps.
5. The method of claim 1, wherein the numerical recording and computing device is a computer device including a processor and a memory.
6. The lamp illumination control method of the ultraviolet baking oven as claimed in claim 1, wherein each of the ultraviolet lamps is electrically connected to a ballast, and the numerical recording and computing device is electrically connected to the ballast for adjusting the ballast to change the output power of the ultraviolet lamps and accordingly change the illumination value of the ultraviolet lamps.
7. The method of claim 1, wherein the extension of the sensing period by the adjustment of the numerical recording and computing device is twice that of the previous adjustment.
8. The method of claim 1, wherein the adjustment of the numerical recording and computing device is shortened to one-half of the previous adjustment when the sensing period is shortened.
9. An ultraviolet ray baking oven, characterized in that the ultraviolet ray baking oven comprises:
the device comprises a plurality of layers of baking chambers, a plurality of ultraviolet lamp tube assemblies and a numerical value recording and calculating device, wherein the plurality of ultraviolet lamp tube assemblies are respectively arranged in the plurality of layers of baking chambers, each ultraviolet lamp tube assembly comprises two ultraviolet lamp tube rows which are mutually parallel, each ultraviolet lamp tube row comprises a plurality of ultraviolet lamp tubes, each ultraviolet lamp tube has a preset illumination value, each ultraviolet lamp tube row is provided with at least one ultraviolet sensor for sensing the illumination value of the plurality of ultraviolet lamp tubes, and the numerical value recording and calculating device is electrically connected with all the ultraviolet lamp tubes and all the ultraviolet sensors and is used for recording the illumination value sensed by the ultraviolet sensors;
the at least one ultraviolet sensor senses all illuminance values of all ultraviolet lamps and transmits the all illuminance values to the numerical value recording and calculating device, and the numerical value recording and calculating device records all the illuminance values and sets a normal operation illuminance range according to all the illuminance values;
the ultraviolet baking oven further comprises an illumination judging and adjusting module, wherein the illumination judging and adjusting module judges whether the illumination value of each ultraviolet lamp tube is within the normal operation illumination range or not; if yes, the numerical value recording and operation device does not adjust the output power of the ultraviolet lamp tube; if not, the numerical value recording and computing device adjusts the output power of the ultraviolet lamp tube to adjust and control the illuminance value of the ultraviolet lamp tube until the illuminance value is within the normal operation illuminance range; and
the ultraviolet baking oven is provided with a sensing period on the numerical value recording and computing device, and when the lighting time of the plurality of ultraviolet lamps reaches the sensing period, the illumination judging and adjusting module is executed to judge whether the illumination value of each ultraviolet lamp falls within the normal operation illumination range; if yes, the numerical value recording and operation device is adjusted to prolong the sensing period; if not, the numerical value recording and operation device is adjusted to shorten the sensing period;
setting a normal operation illumination range according to all the illumination values, selecting a maximum value and a minimum value from all the illumination values of all the ultraviolet lamp tubes, calculating a maximum illumination average value and a minimum illumination average value of all the ultraviolet lamp tubes, and setting the normal operation illumination range, wherein the normal operation illumination range takes the maximum illumination average value and the minimum illumination average value as an upper range limit and a lower range limit;
wherein, the numerical value recording and calculating device is a computer device and comprises a processor and a memory;
the numerical value recording and computing device is electrically connected with the ballast and is used for adjusting the ballast to change the output power of the ultraviolet lamp tube and accordingly change the illuminance value of the ultraviolet lamp tube.
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