CN114734662A - Method for manufacturing super-large-size polymer optical fiber panel - Google Patents

Abstract

The invention relates to a method for manufacturing an ultra-large size polymer optical fiber panel, which belongs to the technical field of optical imaging. The manufacturing method of the super-sized polymer optical fiber panel of the present invention includes the following steps: using multi-wire cutting equipment to cut the polymer optical fiber material into a substrate; drawing a matrix combination diagram according to the size requirements of the finished product, configuring the substrates of different specifications, using Jingdiao The machine engraves the boundary of the polymer substrate, polishes the boundary, grinds the polymer substrate on both sides, and splices it into a panel according to the drawing. Extrusion; take out the panel after cooling to room temperature, carve it to the finished product specification, wash it with ultrasonic wave and pure water, after finishing grinding with grinding equipment, polishing with polishing equipment, and cleaning with cleaning equipment, a large-size polymer optical fiber panel that meets the specifications is obtained. The invention adopts the boundary fusion method, which can effectively reduce defects such as large shadow area and low transmittance caused by the use of transparent glue. Generally, the transmittance and resolution of products that are glued or welded will decrease with the increase of thickness, and the super-large plate segment prepared by the method of the present invention has little influence and can be almost ignored.

Description

Manufacturing method of super-sized polymer optical fiber panel

technical field

The invention relates to a method for manufacturing an ultra-large polymer optical fiber panel, which belongs to the technical field of optical imaging.

Background technique

In the process of modernization, fiber optic panel refers to the fiber panel with high light transmission efficiency, small coupling loss, clear and real image transmission, and optically zero thickness. The most typical application is as the optical input and output windows of low-light image intensifiers, which play an important role in improving the quality during imaging. Widely used in various cathode ray tubes, camera tubes, CCD couplings and other small instruments and equipment that need to transmit images. The low-light image intensifier panel has always been obtained through glass products, and its imaging process is very complicated, the yield is low, and the quality Defects such as instability, especially oversized panels, have high cost and low yield, and are spliced by welding and gluing, which not only affects the strength, but also affects the transmittance of the optical fiber in the welding and bonding parts, etc., and ultimately affects quality of its products. The demand for large-scale equipment is increasing day by day, especially in the fields of navigation, aerospace, and medical treatment, which are restricted by their creativity. Therefore, the present invention can solve the limitation of the traditional manufacturing method using welding and gluing, that is, the manufacturing size of the panel is increased, its strength is enhanced, and the major advantages such as boundary image transmission, distortion, image displacement and other indicators can be solved. It has laid a good foundation for the preparation of super large fiber optic panels.

Most of the existing fiber optic panels are made of glass fiber optic panels with relatively mature production and processing technology. Although they can meet most of the use requirements, there are problems such as small area and low yield, which seriously restricts the amount of super-large size targets. production and promotion. Its own characteristics are heavy, brittle and fragile, not acid-resistant and easy to corrode, poor biocompatibility, low product yield, and high cost, which restrict the promotion and application of the product.

In the face of market demand and technical bottlenecks, polymer super-large fiber optic panels have the advantages of low price, good toughness, acid and alkali resistance, and good biocompatibility. At present, only the United States can produce polymer fiber optic panels for imaging applications. To transfer images from input surface to output surface with high uniformity, true color fidelity and minimal distortion.

At present, there has not been a method of manufacturing polymer optical fiber panels using polymer optical fiber technology in China.

SUMMARY OF THE INVENTION

The invention provides a method for manufacturing an ultra-large-sized polymer optical fiber panel, which can prepare an ultra-large-sized polymer optical fiber panel with low cost, high resolution and wide application range.

In order to solve the above-mentioned technical problems, a kind of technical scheme adopted in the present invention is:

The manufacturing method of the super-sized polymer optical fiber panel of the present invention comprises the following steps:

1) Use multi-wire cutting equipment to cut polymer optical fiber material into substrates;

2) Draw a matrix combination diagram according to the size requirements of the finished product, configure substrates of different specifications according to the matrix combination diagram, and combine them into a large-size fiber optic panel with the required specifications;

3) Use the engraving machine to engrave and polish the boundary of the polymer substrate to ensure the uniformity of the unit wire diameter of the polymer substrate and the mutual fit of the boundary bonding surfaces;

4) Use grinding equipment to grind both sides of the finely carved polymer substrate so that the substrates are on the same plane;

5) The substrates will be selected according to the specifications and shapes, spliced into panels according to the drawings, and then placed in the boundary temperature-controlled fusion mold after clamping;

6) Put the boundary temperature-controlled fusion mold on which the substrate is placed into the vacuum insulation forming furnace, and extrude the fusion mold;

7) Cool the mold to room temperature, take out the panel, carve it to the finished product specifications, and clean it with ultrasonic waves with pure water. After completion, the grinding equipment is ground, the polishing equipment is polished, and the cleaning equipment is cleaned to obtain a large-sized polymer fiber optic panel that meets the specifications.

As a preference: Step 1) The thickness of the cut substrate is the same, and the flatness is within 0.05 μm.

As a preference: Step 3) The specification deviation is within the range of 0-0.01MM, and the boundary has no knife marks and scratches.

As a preference: step 7) The large-size polymer optical fiber panel is free of defects, pits, and scratches, and the flatness measured by laser is within the range of 0.02 μm, and the smoothness is within the range of RA 0.02 μm.

Preferably: Step 6) The heating temperature of the inner boundary of the mold is 205-220°C, the temperature of the outer vacuum holding furnace is 60-120°C, and the holding time is 300-360 seconds.

6. The method for manufacturing a super-sized polymer optical fiber panel according to claim 5, wherein the panel in the mold is pressurized laterally, the operating pressure is 0.1MPA, the vacuum degree is below -0.1MPA, and the extrusion time is controlled at 60 ~120 seconds.

Preferably, the overall cross-section of the polymer optical fiber material is a regular polygon, and the interior is a polymer optical fiber monofilament arranged in an array, and the polymer optical fiber monofilament includes a polymer core material and a polymer skin wrapping the polymer core material, The polymer core material is in the center, and the polymer skin material wraps the polymer core material.

As a preference: the polymer core material is PMMA, and the leather material is fluororesin.

As a preference: the thickness of the substrate cut in step 1) and the size of the workpiece reserved in the middle of the mold are 0.3-0.5MM thick,

According to the present invention, the finished substrate is made by cutting the polymer optical fiber material, the substrate is obtained by fine carving, polishing the boundary, and grinding the plane, and the matrix is arranged in a matching mold, the external heat preservation, and the internal boundary heating method is completed. The large-sized polymer blanks are sliced, ground, and polished to finally produce ultra-large-sized polymer optical fiber panels with low cost, high resolution, and a wide range of applications.

Compared with the existing technical methods of gluing or welding, the present invention adopts the boundary fusion method, which can effectively reduce defects such as large shadow area and low transmittance caused by the use of transparent glue. Generally, the transmittance and resolution of products that are glued or welded will decrease with the increase of thickness, and the super-large plate segment prepared by the method of the present invention has little influence and can be almost ignored. It is a brand-new optical fiber product that can transmit images independently of one unit, the unit structure of a single polymer optical fiber panel is regular, the internal structure is stable, the resolution is high, and the application range is wide.

Description of drawings

Fig. 1 is the processing flow chart of the present invention,

Fig. 2 is the schematic diagram of the polymer optical fiber panel substrate of the present invention,

Fig. 3 is the mould figure one matched by the present invention,

Fig. 4 is the mold diagram two matched by the present invention,

Reference number:

1. Substrate, 2. Engraving position, 3. Boundary temperature control fusion mold, 4. Bottom plate, 5. Buckle plate, 6. Slider, 7. Thermal plate.

Detailed ways

The specific content of the present invention is further described below:

The manufacturing method of the super-sized polymer optical fiber panel of the present invention is to cut the raw material of the regular polygonal polymer panel into sheets, then finely carve, polish the boundary, and grind the plane to obtain a substrate, which is arranged in a matrix and installed in a matching mold, The method of external insulation and internal boundary heating is used to complete large-scale polymer blanks, which are sliced, ground, and polished to finally produce ultra-large-scale polymer fiber optic panels with low cost, high resolution, and a wide range of applications.

The overall raw material of the specific polymer panel is a cube, and the interior is a polymer optical fiber monofilament arranged in an array. The polymer optical fiber monofilament includes a polymer core material and a polymer skin wrapping the polymer core material. The polymer core material In the center, the polymer skin wraps the polymer core. The polymer core material is PMMA, and the leather material is fluororesin.

The manufacturing method steps of the super-sized polymer optical fiber panel of the present invention include:

(1) Use multi-line cutting to cut the polymer panel raw material into substrates of the same thickness, and the thickness is slightly thicker than the size of the workpiece reserved in the middle of the clamping mold by 0.3-0.5MM;

(2) Through the finished product size, drawing and combination matrix, according to the matrix combination diagram, configure the substrates of different specifications, and combine them into the required specifications;

(3) The engraving machine uses the adsorption method to place the substrate on the jig, engraves and polishes the boundary according to the processing specifications, and splices all the substrates of the required specifications. The specification deviation is between 0-0.01MM, and there is no boundary. Knife marks, scratches, consistent unit wire diameters and mutual fit of boundary surfaces;

(4) The grinding equipment removes the 0.3-0.5MM thickness reserved for the cut substrate and grinds it on both sides. While grinding away the line marks, the thickness of each substrate is uniformly ground, so that the substrate can reach a macro-returned convex height relative to each other. The deviation of the ideal plane is convenient for the overall combination;

(5) The substrates are spliced and placed according to the drawing design matrix, and put into the boundary temperature-controlled fusion mold to fully fit;

(6) Put the installed mold in a special vacuum hot pressing furnace, and the butt heating and temperature control couple lines are preheated and heated. The built-in heating temperature is 205~220℃, the external heating temperature is 60~120℃, and the holding time is 300 ~360, the products are bonded together by lateral pressure, the pressure is 0.1MPA, the vacuum degree is below -0.1MPA, and the time is controlled at 60~120′

(7) Cool to room temperature, take out the hot-pressed polymer panel, use a large-size single line to cut and divide, use a grinder to grind, polish with a polisher, and carve the size of the exterior to complete the entire preparation process of the super-large polymer panel.

(8) Use ultrasonic wave to clean the super-sized polymer panel with pure water. After the grinding equipment is finished, the polishing equipment is polished, and the cleaning equipment is cleaned to obtain a large-sized polymer optical fiber panel that meets the specifications.

The boundary temperature control fusion mold structure used in the present invention includes a bottom plate at the bottom and a gusset plate on the top, both of which are square, a rectangular protrusion protrudes from the middle of the bottom plate gusset layer, and a heat conduction plate is placed in the middle of the rectangular protrusion. Opposite to the heat-conducting plate 2 on the pinch plate, the substrate is placed between the two heat-conducting plates. The heat-conducting plate 2 of the rectangular workpiece placement area is provided with horizontal and vertical intersecting grooves, and heating elements and temperature-controlling elements are inserted into the grooves. There are four groups of sliders around the substrate. The four groups of sliders form a rectangular shape and surround the substrate and the heat-conducting plate. The rectangular space can be adjusted according to the movement of the four groups of sliders. The sliders are assembled at the bottom plate and the pinch plate. A circle between the rectangular workpiece placement area thermally conductive plate.

The substrates are heated and squeezed through the surrounding sliders and heat-conducting plates to realize the connection between the substrates.

The large-size polymer optical fiber panel made of the finished polymer optical fiber panel substrate of the present invention is formed by arranging several polymer optical fiber panel substrates in a matrix, and by means of overall heat preservation, boundary heating and pressure, to form a As a whole, through cold processing, grinding, polishing, and fine carving, a large-size polymer optical fiber panel with high performance, high strength and high transmittance is obtained. Through precise calculation, engraving and polishing, the corresponding unit wire diameter docking interface is reserved to complete the matrix angle matching and docking, and realize the micron-level docking of the matrix boundary of the finished product. .

Compared with the existing technical way of using gluing, the present invention adopts the boundary fusion method, which can effectively reduce the defects such as large shadow area and low transmittance caused by the use of transparent glue, and the transmittance and resolution of general products will increase later. increase and decrease. The invention adopts the high-precision solution composite spinning method to prepare the polymer optical fiber substrate, and through the combination and splicing of the substrate matrix, the production of the ultra-large-sized polymer panel with low cost, fast manufacturing speed, continuous and high efficiency is obtained, and has strong advantages. applicability and promotion.

Claims (9)

1. A method for manufacturing a super-sized polymer optical fiber panel, characterized in that: comprising the following steps: 1) Use multi-wire cutting equipment to cut polymer optical fiber material into substrates; 2) Draw a matrix combination diagram according to the size requirements of the finished product, configure substrates of different specifications according to the matrix combination diagram, and combine them into a large-size fiber optic panel with the required specifications; 3) Use the engraving machine to engrave and polish the boundary of the polymer substrate to ensure the uniformity of the unit wire diameter of the polymer substrate and the mutual fit of the boundary bonding surfaces; 4) Use grinding equipment to grind both sides of the finely carved polymer substrate so that the substrates are on the same plane; 5) The substrates will be selected according to the specifications and shapes, spliced into panels according to the drawings, and then placed in the boundary temperature-controlled fusion mold after clamping; 6) Put the boundary temperature-controlled fusion mold on which the substrate is placed into the vacuum insulation forming furnace, and extrude the fusion mold; 7) Cool the mold to room temperature, take out the panel, carve it to the finished product specifications, and clean it with ultrasonic waves with pure water. After completion, the grinding equipment is ground, the polishing equipment is polished, and the cleaning equipment is cleaned to obtain a large-sized polymer fiber optic panel that meets the specifications. 2 . The method for manufacturing a super-sized polymer optical fiber panel according to claim 1 , wherein: the thickness of the cut substrate in step 1) is the same, and the flatness is within 0.05 μm. 3 . 3 . The method for manufacturing a super-sized polymer optical fiber panel according to claim 1 , wherein in step 3) the specification deviation is within the range of 0-0.01MM, and the boundary has no knife marks and scratches. 4 . 4. The method for manufacturing a super-sized polymer optical fiber panel according to claim 1, wherein in step 7) the large-sized polymer optical fiber panel is free of defects, pits, and scratches, and the flatness measured by laser is within the range of 0.02 μm , the finish is within the range of RA0.02μm. 5. The method for manufacturing a super-sized polymer optical fiber panel according to claim 1, wherein in step 6) the heating temperature of the inner boundary of the mold is 205-220°C, the temperature of the outer vacuum holding furnace is 60-120°C, and the holding time is 205-220°C. 300~360 seconds. 6. The method for manufacturing a super-sized polymer optical fiber panel according to claim 5, wherein the panel in the mold is pressurized laterally, the operating pressure is 0.1MPA, the degree of vacuum is below -0.1MPA, and the extrusion time is controlled at 60 ~120 seconds. 7 . The method for manufacturing a super-sized polymer optical fiber panel according to claim 1 , wherein the overall cross-section of the polymer optical fiber material is a regular polygon, and the interior is an array of polymer optical fiber monofilaments. The optical fiber monofilament includes a polymer core material and a polymer skin material surrounding the polymer core material, the polymer core material is in the center, and the polymer skin material wraps the polymer core material. 8 . The method for manufacturing a super-sized polymer optical fiber panel according to claim 7 , wherein the polymer core material is PMMA, and the leather material is fluororesin. 9 . 9 . The method for manufacturing a super-sized polymer optical fiber panel according to claim 1 , wherein the thickness of the substrate cut in step 1) and the size of the workpiece reserved in the middle of the mold are 0.3-0.5MM thick. 10 .

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