CN211206254U

CN211206254U - Laser light transmittance measuring device for plastic material

Info

Publication number: CN211206254U
Application number: CN201921496493.7U
Authority: CN
Inventors: 孙大庆
Original assignee: Yiwo Suzhou Laser System Co ltd
Current assignee: Yiwo Suzhou Laser System Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-08-07
Anticipated expiration: 2029-09-10

Abstract

The utility model relates to a laser luminousness measuring device for plastic materials, which comprises a base, a support, a laser light source generator, a light guide channel, a photoelectric detector and a sample frame, wherein the support is fixed on the base; the utility model provides a laser luminousness measuring device for plastic material adopts the laser that has bigger referential and the guiding help of technology to welding process as the light source to increase light guide channel on beam channel, increased measuring interference killing feature and accuracy.

Description

Laser light transmittance measuring device for plastic material

Technical Field

The utility model relates to a plastic materials's detection device especially relates to a laser light transmittance ratio measuring device for plastic materials.

Background

The transmission type laser plastic welding technology is that an upper layer plastic material and a lower layer plastic material are stacked together, laser beams penetrate through the upper layer plastic material, focus on an absorption surface layer to melt the absorption surface layer, and the two parts are welded together under certain pressure. The laser energy penetrating the upper transparent material is of great importance for welding, and therefore special equipment is required for carrying out necessary measurement and quantification. Meanwhile, in the continuous production process of laser plastic welding, the light transmittance value of the sample piece is quantitatively managed, so that the necessary requirement for continuous and stable production is met. The current general testing principle of the luminometer is that a visible light source irradiates a measured substance, a sensor respectively detects the incident light intensity of the light source and the light intensity after the measured substance is transmitted, and the ratio of the transmitted light intensity to the incident light intensity is the transmittance and is expressed by percentage.

At present, the general light transmittance instrument test basically adopts a light source with a visible wave band, and the visible wave band is greatly different from a laser wave band adopted by actual welding equipment, so that the measurement standard is greatly different. In addition, the laser beam has certain divergence in the transmission process, the diameter of the transmitted light beam is larger than the effective size of the test area of the sample to be tested, and the transmitted light beam is limited by the light guide channel, so that the measurement precision can be improved.

To above problem, the utility model provides a rational in infrastructure, the high laser transmittance measuring device who is used for plastic materials of accuracy.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a laser transmittance measuring device for plastic materials, which uses laser with greater reference and guiding help as light source for welding process, and adds light guide channel on the light beam channel, thereby increasing the anti-interference ability and accuracy of measurement.

The utility model discloses a laser luminousness measuring device for plastic material, including base, support, laser light source generator, leaded light passageway, photoelectric detector and sample holder, be fixed with on the base the support, be fixed with the process on the support leaded light passageway to base transmission laser the laser light source generator, be under the laser light source generator be fixed with on the base the sample holder, the sample holder below be equipped with in the base photoelectric detector, the top of leaded light passageway is fixed on the support.

Further, the light guide channel is a telescopic sleeve.

Furthermore, the fixed end of the sleeve is fixed on the support, and the telescopic direction of the telescopic end of the sleeve is parallel to the light emitting direction of the laser light source generator.

Further, the sleeve includes an outer tube and a telescoping inner tube.

More specifically, the inner tube has an inner diameter smaller than a laser emission passage in the laser light source generator.

More specifically, the inner pipe and the outer pipe are both metal pipes with black inner walls.

Furthermore, a light-transmitting window consisting of a light-transmitting window and a light-transmitting window body is arranged on the sample frame, a plastic material for testing light transmittance is arranged on the light-transmitting window, and the photoelectric detector is correspondingly arranged in the base below the light-transmitting window.

Borrow by above-mentioned scheme, the utility model discloses at least, have following advantage:

the utility model provides a laser luminousness measuring device for plastic material, based on the characteristics of laser energy transmission and the demand of laser plastic welding technique, the laser light source of nearly/with laser plastic welding equipment is adopted to the light source wave band, can be comparatively accurate the laser luminousness of measurement plastic material; meanwhile, a light beam channel is added, and the convenience and the accuracy of measurement are improved.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a cross-sectional view of the laser transmittance measuring device for plastic materials of the present invention.

1 base 2 support

3 laser light source generator 4 photoelectric detector

5 outer pipe 6 inner pipe

7 light-transmitting Window 8 sample

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Fig. 1 shows a laser luminousness measuring device for plastic material, which comprises a base 1, a support 2, a laser light source generator 3, a light guide channel, a photoelectric detector 4 and a sample holder, wherein the support 2 is fixed on the base 1, the laser light source generator 3 which emits laser to the base 1 through the light guide channel is fixed on the support 2, the sample holder is fixed on the base 1 under the laser light source generator 3, the photoelectric detector 4 is arranged in the base 1 under the sample holder, and the top of the light guide channel is fixed on the support 2.

The utility model provides a use for plastic materials's laser luminousness measuring device as follows:

1. and starting a laser light transmittance measuring device for the plastic material to perform equipment initialization operation. Under the state that a sample 8 to be measured is not placed, the laser light source generator 3 is started by the set laser energy, the photoelectric detector 4 receives the energy of the laser light source, the measured energy value is normalized and recalibrated, and the value is set to be 100%;

2. keeping the states of the laser light source generator 3 and the photoelectric detector 4 in the step 1, placing a sample 8 to be detected on a proper position on a laser beam path, namely a sample rack, wherein a part of the energy of the laser light source is absorbed by the sample 8, the rest of the energy penetrates through the sample to reach the photoelectric detector 4, and the photoelectric detector 4 detects the energy value which is displayed in a percentage form by the standardized calibration method, namely the corresponding laser energy penetration rate value of the sample 8;

3. and removing the sample after the measurement is finished, and recording the corresponding transmittance value according to the measurement time by the equipment and archiving.

In this embodiment, in order to adjust the length of the light guide better and prevent the laser light source from scattering, the light guide channel is a telescopic sleeve, the fixed end of the sleeve is fixed on the support 2, the telescopic direction of the telescopic end of the sleeve is parallel to the light emitting direction of the laser light source generator 3, and the sleeve comprises an outer tube 5 and a telescopic inner tube 6.

In this embodiment, the inner diameter of the inner tube 6 is smaller than the laser emission channel of the laser light source generator 3 to achieve better effect of preventing the laser light source from scattering.

In this embodiment, in order to generate a better light-shielding effect, the inner tube 6 and the outer tube 5 are both metal tubes with black inner walls, which may be metal tubes coated with a layer of black paint on the inner walls of copper tubes, so as to eliminate reflection.

In this embodiment, in order to measure the transmittance of the sample 8 more accurately, the sample holder is provided with a light-transmitting window 7 composed of a light-transmitting window and a light-transmitting window body, the plastic material to be tested for transmittance is placed on the light-transmitting window 7, and a photodetector 4 is correspondingly arranged in the base 1 below the light-transmitting window 7.

The utility model has the advantages that:

the utility model provides a laser transmissivity measuring device for plastic materials, the same/close wavelength range of high energy laser source that this measuring device's laser source wavelength and adopted during the welding, can be comparatively accurate the transmissivity of measuration material, light guide channel has still been increased, external environment to measuring interference has been overcome, and be convenient for measure the implementation of work, light guide channel another important effect is accurate location measuring position, because the laser beam has certain divergence in transmission process, the light beam diameter can be greater than the test area effective size of the sample that awaits measuring in the propagation, restrict the precision that can improve the measurement to the propagation light beam through light guide channel.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, it should be noted that, for those skilled in the art, a plurality of improvements and modifications can be made without departing from the technical principle of the present invention, and such improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A laser light transmittance measuring device for plastic materials is characterized in that: including base, support, laser light source generator, leaded light passageway, photoelectric detector and sample frame, be fixed with on the base the support, be fixed with on the support through the leaded light passageway to the base transmission laser the laser light source generator, be fixed with directly under the laser light source generator on the base the sample frame, the sample frame below be equipped with in the base photoelectric detector, the top of leaded light passageway is fixed on the support.

2. The laser light transmittance measurement apparatus for plastic materials according to claim 1, characterized in that: the light guide channel is a telescopic sleeve.

3. The laser light transmittance measurement apparatus for plastic materials according to claim 2, characterized in that: the fixed end of the sleeve is fixed on the support, and the telescopic direction of the telescopic end of the sleeve is parallel to the light emitting direction of the laser light source generator.

4. The laser light transmittance measurement apparatus for plastic materials according to claim 2, characterized in that: the sleeve comprises an outer tube and a telescopic inner tube.

5. The laser light transmittance measurement apparatus for plastic materials according to claim 4, characterized in that: the inner diameter of the inner tube is smaller than a laser emission channel in the laser light source generator.

6. The laser light transmittance measurement apparatus for plastic materials according to claim 4, characterized in that: the inner pipe and the outer pipe are metal pipes with black inner walls.

7. The laser light transmittance measurement apparatus for plastic materials according to claim 1, characterized in that: the sample frame is provided with a light-transmitting window consisting of a light-transmitting window and a light-transmitting window body, a plastic material to be tested for light transmittance is arranged on the light-transmitting window, and the photoelectric detector is correspondingly arranged in the base below the light-transmitting window.