KR20010009750A - Apparatus for measuring hardening by vibration - Google Patents

Abstract

PURPOSE: An apparatus for measuring a curing state by using light is provided to optimize the products producing process employing ultraviolet rays by measuring a vibration absorption degree after applying vibration or sound to a sample such as adhesive agents or paints. CONSTITUTION: An apparatus for measuring a curing state by using light includes a microprocessor(20) for controlling the whole apparatus and comparing a feedback data with a stored data to output a control signal according to a curing state of a sample, a power supply(21) for supplying power to the microprocessor, a vibration controlling part(22) for outputting the power supply after controlling for generating vibration set by the microprocessor, a vibration generating part(23) to be driven by the power supply from the vibration controlling part for generating vibration, a measuring test part(24) for radiating an ultraviolet ray to the sample and applying the vibration generated by the vibration generating part to the sample, a reaction sensing part(25) for sensing vibration transmitted via the sample to generate an analogue signal corresponding to the vibration, and a reactive amplifier(26) for digitalizing the analogue signal applied from the reaction sensing part to output to the microprocessor after amplification.

Description

Apparatus for measuring hardening by vibration}

The present invention relates to a curing measuring apparatus using vibration, and in particular, after applying vibration or sound to a sample such as an adhesive or a paint, the degree of vibration absorption can be measured, and the degree of curing according to various kinds of samples is determined by ultraviolet rays. The present invention relates to a hardening measuring device using vibration capable of optimizing a product production process using ultraviolet rays.

In general, the adhesive or paint is in the form of a liquid or gel as a raw material that has not been cured, but when ultraviolet (UV) is irradiated thereto, there is a phenomenon of solidification, that is, curing.

Such ultraviolet curing system can be used to cure UV-type paints, which are often used for powder coating of automobiles or high-grade metal products or painting of expensive products. In addition, the curing system as described above can optimize the process conditions by adjusting the UV curing of the paint used in the semiconductor process.

Such a method of curing the raw material by irradiation of ultraviolet rays can be used, for example, to cure the adhesive used for agricultural mulching (mulching).

In general, mulching vinyl is a vinyl that covers the furrows for warming, moisturizing and refining soil when crops are cultivated. Since mulching vinyl can suppress the occurrence of weeds and pests and promote crop growth, it is widely used. . In the case of farming using such mulching vinyl, the seed is attached to the mulching vinyl in advance by using an adhesive or the like, and the attached seed is irradiated with UV rays to cure, and the vinyl attached with the seed is rolled with a roller. Simply spread the vinyl on the seeding and the sowing takes place automatically.

The curing apparatus using such ultraviolet rays is provided with light reflecting means as shown in FIG. 1 to irradiate the ultraviolet rays.

Referring to FIG. 1, the light reflecting means includes a lamp 10 generating ultraviolet rays according to the power supplied, a first reflecting mirror 11 collecting the ultraviolet rays generated from the lamp 10 and reflecting them upward. The multi-directional reflector 12, which transmits the ultraviolet light incident from the first reflector 11 in various directions according to its geometric shape, and the ultraviolet light incident from the multi-directional reflector 12, are collected and irradiated to the irradiation surface 14 It consists of two reflecting mirrors (13).

The lamp 10 may be implemented by a Zenon lamp or a mercury lamp, and the first and second reflectors 11 and 13 are concave mirrors, and the multidirectional reflector 12 is convex. It has a mirror shape. In addition, the multidirectional reflector 12 has a rhombic shape to refracted incident ultraviolet rays in three directions, and has a pentagonal geometric shape to refracted in four directions.

Fig. 2 shows a cross-sectional view of an apparatus having the above-described light reflecting means for curing an adhesive for bonding seeds to mulching vinyl.

Such a conventional adhesive curing apparatus is disclosed in a patent application (patent application number: 10-1999-0017864) already by the same applicant as the applicant of the present invention.

That is, referring to Figure 2, the conventional adhesive curing apparatus is provided with the above-described lamp 10, the first reflecting mirror 11, the multi-directional reflector 12 and the second reflecting mirror 13 in the case (15). The conductive support 18 for supplying power to the lamp 10 is connected, and the conductive support 18 is fixed to the insulating support 16 under the case 15 by a fixing screw 17. have. The multidirectional reflector 12 is formed on the case 15 by a support 19 fixed to the case 15.

In the conventional adhesive curing apparatus configured as described above, when power is supplied to the lamp 10 through the conductive support 18, ultraviolet rays are generated from the lamp 10, and the generated ultraviolet rays are emitted from the first reflecting mirror 11. The light is collected and reflected by the multidirectional reflector 12 installed on the case 15. In addition, the multi-directional reflector 12 refracts the ultraviolet rays incident from the first reflecting mirror 11 to reflect to the second reflecting mirror 13 side, and the second reflecting mirror 13 reflects the incident ultraviolet rays to the irradiated surface 14, that is, the adhesive agent. The adhesive is cured by irradiating the mulching vinyl surface to which the seeds are adhered by.

By the way, the conventional curing target materials such as adhesives or paints, the reaction time is different depending on the type, the curing end time is different, it was difficult to control the curing reaction. In particular, according to the conventional adhesive curing apparatus, it is not possible to set an accurate curing end time for a material having a short curing reaction time and difficult to control the curing reaction, and thus it is not possible to appropriately control an operation time of a lamp according to a curing target material. .

Accordingly, the present invention has been made to solve the above problems, and after applying vibration or sound to a sample such as adhesive or paint, the degree of vibration absorption can be measured, and the degree of curing by ultraviolet rays according to various kinds of samples. It is an object of the present invention to provide a curing measuring apparatus using vibration that can optimize the product production process by applying ultraviolet rays.

1 is a schematic view showing the configuration of a light reflection means provided in the conventional curing apparatus using vibration.

Figure 2 is a cross-sectional view showing the configuration of a conventional adhesive curing device having a light reflecting means of Figure 1;

Figure 3 is a block diagram showing the configuration of a curing measurement device using vibration in accordance with the present invention.

4 is a view showing a configuration according to an embodiment of the vibration oscillator of FIG.

5 is a view showing a curing measurement process using vibration in the test measurement unit of FIG.

* Description of the symbols for the main parts of the drawings *

10: Lamp 11: The first reflector

12: Multidirectional reflector 13: Second reflector

14: UV irradiation page 15: Case

16: Insulation support 17: Fixing screw

18: conductive member 19: support member

20: microprocessor 21: power supply

22: vibration control unit 23: vibration oscillation unit

24: test measurement unit 25: reaction detection unit

26: reaction amplifier

In order to achieve the above object, the present invention controls the entire curing measuring apparatus, stores the feedback data, and compares the stored data with previously stored data, and according to the degree of curing of the sample, the control signal for curing measurement. A microprocessor for outputting; A power supply for supplying power to the microprocessor; A vibration control unit for controlling and outputting power supplied from the power supply unit to generate vibration set in the microprocessor; A vibration oscillation unit driven by the power supplied from the vibration control unit to generate vibrations; A test measurement unit for irradiating ultraviolet rays to the sample and applying the vibration generated by the vibration oscillation unit to the specimen on which the sample is placed; A reaction detecting unit for detecting an oscillation transmitted through a sample of the test measuring unit and generating an analog signal corresponding to the detected vibration; And a reaction amplifying unit for digitizing and amplifying the analog signal applied from the reaction detecting unit and outputting the analog signal to the microprocessor.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

In general, liquids are relatively incapable of transmitting vibrations because they absorb more well than solids against external vibrations or impacts. In other words, the external shocks are transmitted to the solid better than the liquid.

The present invention focusing on the vibration characteristics of such liquids and solids is configured as shown in FIG.

That is, the hardening measuring apparatus using vibration according to the present invention controls the entire hardening measuring apparatus, stores the feedback data, compares the stored data with the previously stored data, and measures the curing according to the degree of hardening of the sample. A microprocessor 20 for outputting a control signal for the device; A power supply unit 21 for supplying power to the microprocessor 20; A vibration control unit 22 for controlling and outputting the power supplied from the power supply unit 21 so that the vibration set in the microprocessor 20 is generated; And a vibration oscillation unit 23 driven by the power supplied from the vibration control unit 22 to generate vibration.

In addition, the curing measurement apparatus using the vibration according to the present invention includes a test measurement unit 24 for irradiating the sample with ultraviolet light and applying the vibration generated by the vibration oscillation unit 23 to the specimen on which the sample is placed; A reaction detection unit 25 for detecting the degree of vibration absorbed by the sample of the test measurement unit 24 and generating an analog signal corresponding to the detected degree of vibration absorption; And a reaction amplifier 26 for digitizing and amplifying the analog signal applied from the reaction sensor 25 and outputting the analog signal to the microprocessor 20.

The power supply unit 21 is composed of a control circuit and an external power supply to control the stable power supply so that the width of the change in the supply power is small.

In addition, the vibration control unit 22 is provided with an automatic power control and control circuit for automatically adjusting and outputting the power from the power supply unit 21 so that the vibration set in the microprocessor 20 is generated in the vibration oscillation unit 23. do.

In addition, the vibration oscillator 23 is a speaker that is driven by the power applied from the vibration control unit 22 to generate a sound of a predetermined frequency; It consists of a portion for fixing the specimen on which the sample is placed. Here, as shown in FIG. 4 instead of the speaker, vibration may be generated using the motor 23. That is, a tap is formed on the rotating shaft 231 connected to the motor 23. When the motor 23 is driven by the power supplied from the power supply 21, vibration is generated at the tap of the rotating shaft 231. Is generated. The motor 230 may be connected to an eccentric shaft of a quadrilateral or hexagonal shape to generate vibration.

In addition, the test measurement unit 24 includes an ultraviolet light supply unit for generating ultraviolet light and irradiating the sample; A dark room type blocking chamber which blocks all other light except ultraviolet light generated from the ultraviolet light supply unit; In order to consider only a stable set external force, which is fixedly installed in the dark room chamber, the vibration support plate for blocking other external vibration and the specimen 240 as shown in FIG. 5 are fixedly installed on the vibration support plate and the specimen ( The sample 241 is placed on the 240. Here, the specimen 240 is made of a metal plate of the rectangular thin flat plate described above.

In addition, the reaction detection unit 25 is installed on the opposite side of the vibration to the specimen 240, as shown in Figure 5 sensor 242 for detecting the vibration transmitted through the sample placed on the specimen 241 )Wow; A sensor holder for fixing the sensor 242; And a circuit board which senses the response of the sensor 242 and outputs an analog signal. Here, the sensor 242 may be implemented as a piezoelectric sensor or a vibration sensor.

The vibration detection data fed back to the microprocessor 20 may be displayed externally through a monitor or an oscilloscope.

The operation of the curing measuring apparatus using vibration according to the present invention configured as described above will be described in detail with reference to FIG. 3.

First, when the desired sample 241 is placed or coated on the specimen 240 of the test measurement unit 24, and a command for hardening measurement is input to the microprocessor 20, the microprocessor 30 controls the vibration controller 22. To the control signal,

Accordingly, the vibration controller 22 adjusts the power applied from the power supply 21 to supply the vibration oscillation unit 23 so that vibration suitable for the measurement is generated. Therefore, the speaker or motor 230 provided in the vibration oscillator 23 is driven to generate vibration or sound of a constant frequency.

As shown in FIG. 5, the external force is transmitted to one side of the specimen 240 of the test measurement unit 24, for example, the left side, and the UV supply unit irradiates ultraviolet rays to the sample 241. Initially, because the liquid sample 241 absorbs a lot of external force such as vibration or sound applied from the outside, a weak force is transmitted to the opposite side of the left side of the specimen 240 to which the external force is applied, that is, to the right side of the specimen 240. However, as the liquid sample gradually solidifies by irradiation of ultraviolet rays, the force transmitted to the right side of the specimen 240 increases, and when the sample 241 is completely solidified, the external force applied to the left side of the specimen 240 becomes 240 is transmitted to the right side as it is.

Therefore, when the external force applied to the sample 241 and the external force sensed by the reaction detecting unit 25 coincide, the time point becomes the curing end time of the sample.

Meanwhile, the reaction amplifier 26 samples the analog signal applied from the refraction angle measuring unit 25, digitalizes it, and then amplifies and outputs the analog signal to the microprocessor 20.

The microprocessor 20 stores the data applied from the reaction amplifier 26 and performs feedback control. The microprocessor 20 compares the pre-stored data with the data fed back from the reaction amplifier 26 to determine the degree of curing of the sample 240. You will be judged.

That is, as the liquid sample 240 gradually hardens, the external force transmitted through the sample 240 gradually increases, so that the difference between the data pre-stored in the microprocessor 20 and the feedback data is gradually reduced. As such, when there is a difference between the pre-stored data and the fed back data, the microprocessor 20 keeps ultraviolet light irradiated onto the sample 240.

Thereafter, when the curing of the sample 240 is completed, the previously stored data and the fed back data become the same as described above, wherein the microprocessor 20 regards this as the curing end time of the corresponding sample 240, The accurate curing end time of the various samples 240 can be measured.

As described above, by applying vibration or sound to a sample such as an adhesive or a paint, the degree of vibration absorption can be measured, and the degree of curing by ultraviolet light can be measured according to various kinds of samples. It is possible to optimize the production process by applying

Claims (6)

The microprocessor 20 controls the entire curing measuring apparatus, stores the feedback data, and compares the stored data with previously stored data, and outputs a control signal for curing measurement according to the degree of curing of the sample 241. ); A power supply unit 21 for supplying power to the microprocessor 20; A vibration control unit 22 for controlling and outputting the power supplied from the power supply unit 21 so that the vibration set in the microprocessor 20 is generated; A vibration oscillation unit 23 driven by the power supplied from the vibration control unit 22 to generate vibration; A test measurement unit 24 irradiating ultraviolet rays to the sample 241 and applying the vibration generated by the vibration oscillation unit 23 to the specimen 240 on which the sample 241 is placed; A reaction detecting unit 25 which detects a vibration transmitted through the sample 241 of the test measuring unit 24 and generates an analog signal corresponding to the detected vibration; And And amplifying and amplifying the analog signal applied from the reaction detecting unit (25) and outputting the amplification unit (26) to the microprocessor (20). The method of claim 1, wherein the oscillation oscillator 23 Driven by the power applied from the oscillation oscillator 23, respectively, a piezoelectric sensor for generating vibrations by ultrasonic waves or a speaker for generating sound waves or a motor for generating vibrations, characterized in that using a vibration (230) Curing measuring device. The method of claim 1, wherein the test measurement unit 24 An ultraviolet light supply unit generating ultraviolet light and irradiating the sample 241; A dark room type blocking chamber which blocks all other light except ultraviolet light generated from the ultraviolet light supply unit; And a specimen on which the specimen 241 is fixed and placed on the vibration support plate and the vibration support plate to block other external vibrations so as to consider only a stable set external force. Hardening measuring device using vibration characterized in that. The method of claim 3, wherein the specimen 240 Hardening measuring device using vibration, characterized in that the rectangular thin plate metal plate material. The method of claim 1, wherein the reaction detection unit 25 Hardening measurement using vibration provided with a piezoelectric sensor or a vibration sensor which is installed on the opposite side of the surface of the specimen 240 to which vibration is applied and detects the vibration transmitted through the sample 241 placed on the specimen 240. Device. The method of claim 1, wherein the microprocessor 20 Hardening measuring apparatus using vibration, characterized in that when the difference between the data fed back from the reaction amplifier 26 and the pre-stored data is gradually reduced and the same is regarded as the end point of the curing of the sample.