TWM632049U - Processing mechanism of light guide plate - Google Patents

Abstract

The present invention provides a processing mechanism for a light guide plate, which includes a film attaching device, a pressing flower wheel and a supporting device. The film-attaching device is used to attach the protective film to the upper and/or lower surface of the light guide plate. The embossing wheel is arranged on one side of the film-attaching device and has a pattern structure on the surface. The protective film forms a concave structure corresponding to the pattern structure, and the supporting device is arranged opposite the pressing flower wheel to support the light guide plate so that the pressing flower wheel can be rolled and pressed on the protective film. According to this, the light guide plate can use the concave structure on the protective film during the subsequent stacking to avoid the vacuum adsorption phenomenon caused by the protective film pressing each other for a long time. The next light guide plate falls to the lower light guide plate, causing damage to the light guide plate.

Description

Processing mechanism of light guide plate

This creation is related to the field of light guide plate processing, especially a processing mechanism of light guide plate.

The current light guide plate manufacturing solutions can be roughly divided into a method of first providing a plastic sheet, and then forming the required optical microstructure on the plastic sheet through secondary processing, or directly using the injection molding method to form the sheet together with the sheet. Optical microstructures are formed on the plate. However, no matter which of the above manufacturing methods is used, after the light guide plate is manufactured, it still needs to go through many finishing and shipping preparation steps.

Generally speaking, after the light guide plate is manufactured and undergoes various processing treatments, it will be stacked and then transported and shipped. At the same time, in order to protect the optical microstructure on the light guide plate and prevent the stacked light guide plates from rubbing and damaging each other, therefore The light guide plate needs to be covered with a smooth protective material before stacking and packaging. However, after setting the protective material, when the topmost light guide plate, which is the first piece of light guide plate, is taken through the mechanism, the light guide plates are stacked and squeezed for too long, resulting in vacuum adsorption between adjacent light guide plates. At this time, due to the vacuum Adsorption phenomenon, the second light guide plate will be sucked up together, and then fall off and fall to the third light guide plate, which will cause collision damage to the light guide plate, and cause great problems in subsequent assembly and use. However, there is still no specific solution and technology proposed for this phenomenon.

In view of this, the creator has gathered many years of rich experience in related industries, and then conceived and proposed a processing mechanism for light guide plates, which can prevent the light guide plates from squeezing each other when they are stacked to form the aforementioned vacuum adsorption by processing on protective materials. phenomenon, and then effectively solve the inconvenience and deficiency when taking the stacked light guide plates.

One of the objectives of this creation is to provide a processing mechanism for light guide plates, which can effectively solve the problem of stacking and squeezing light guide plates after automatically attaching a protective film to the surface of the light guide plate, and then using rolling processing to form lines on the protective film. Vacuum adsorption phenomenon caused by pressure for a long time.

In order to achieve the above-mentioned purpose, the present invention discloses a processing mechanism of a light guide plate in one embodiment, comprising: a film attaching device for attaching a protective film to the upper surface and/or the lower surface of the light guide plate; a pressing flower wheel, Set on one side of the film-attaching device, the surface of the extrusion wheel has a pattern structure, and the extrusion wheel is heated to a set temperature and rolls the protective film, so that the protective film forms a concave structure corresponding to the pattern structure; and a support The pressing device is arranged relative to the pressing flower wheel, and is used to support the light guide plate so that the pressing flower wheel is forced to roll on the protective film. Accordingly, the vacuum adsorption phenomenon can be avoided by the concave lines on the surface of the protective film and the pattern structure, so as to effectively prevent the light guide plate from falling when the stacked light guide plate is grabbed or taken out.

Further, in another embodiment, it is disclosed that the pattern structure is distributed on the surface of the embossing wheel to form a plurality of imprinting areas, and the imprinting areas are elongated and arranged at intervals, so that the protective film can be adapted to the pattern structure. The pattern distribution formed is more suitable, and the manufacturing of the embossing wheel is relatively simpler.

Based on the foregoing embodiment, in another embodiment, it is disclosed that the distance between any two adjacent embossing areas is 1±0.2 mm, so as to form a more suitable grain distribution state and facilitate processing into an embossed wheel structure.

In addition, in the next embodiment, the lengths of the imprinting areas are respectively 100±0.5 mm, so as to have better efficiency in imprinting and be suitable for most light guide plate rulers.

Furthermore, in an embodiment, it is disclosed that the widths of the imprinting areas are respectively 1.8±0.2 mm, so as to form a better pattern distribution state accordingly.

In addition, considering the common light guide plate ruler, in one embodiment, the diameter of the embossing wheel is disclosed as 22±0.5mm, which is more convenient for performing the rolling process.

In addition, in one embodiment, it is disclosed that the pattern structure includes a plurality of first twill grooves and a plurality of second twill grooves, the first twill grooves are arranged in parallel and spaced apart from each other, and the second twill grooves are parallel to each other The first twill grooves and the second twill grooves are staggered with each other, so that not only is it beneficial to manufacture the embossing wheel structure, but also a more suitable texture structure can be formed relative to the protective film.

Based on the above-mentioned embodiment, another embodiment discloses that the distance between any two adjacent first twill grooves is 1.5±0.2 mm, so as to form a more suitable pattern.

Alternatively, as described in the next embodiment, the distance between any two adjacent second twill grooves is 1.5±0.2 mm, and a more appropriate pattern can also be formed accordingly.

In addition, in another embodiment, the inclination angle of the second twill grooves is 45-60 degrees, so as to be sandwiched with the first twill grooves to form patterns suitable for embossing.

In order to facilitate automatic processing and make the movement of the light guide plate smoother, in an embodiment, it is disclosed that the supporting device includes a plurality of passive conveying wheels, and the passive conveying wheel trains are arranged at intervals, and the passive conveying wheels are arranged when the light guide plate moves. The wheel train rotates with its center as the axis.

In addition, in a specific implementation, an embodiment of the processing mechanism for the light guide plate further includes a laser cutting device, which is arranged on one side of the embossing wheel for cutting the light guide plate after being embossed by the embossing wheel, so as to protect the light guide plate on the light guide plate. The film is cut to form the desired size after the concave structure is formed by embossing.

Furthermore, in order to protect the light guide plate more comprehensively, in another embodiment, it is disclosed that the film attaching device includes two film material rollers, which are respectively disposed on the top side and the bottom side of the light guide plate, so as to attach the protective film to the guide plate. The upper surface and the lower surface of the light guide plate; the embossing wheel is arranged on the top side of the light guide plate to emboss the protective film attached to the upper surface of the light guide plate.

Further, in order to enable the embossing wheel to smoothly emboss the pattern structure on the protective film to form the corresponding concave structure, in one embodiment, it is disclosed that the set temperature is 50-60°C.

To sum up, the processing mechanism of the light guide plate of this creation combines the covering of the protective film and the embossing processing in the same processing line, and the embossing wheel is used to form a concave structure on the protective film to prevent the subsequent stacking of the light guide plate. After the formation, the adjacent light guide plates form a vacuum adsorption state due to the mutual extrusion of the stack, which can effectively avoid the problem of sucking up other light guide plates together and then dropping them when taking the light guide plate, and effectively improve the light guide plate. The assembly application efficiency and maintain the quality of light guide plate products. Further, regarding the specific structural state of the pressing flower wheel and the detailed structural features of the processing mechanism, this creation also proposes many technical features that can be added, as described in the above paragraphs.

As mentioned above, in today's light guide plate production field, there is still no good solution to the problem of picking up and falling light guide plates after stacking. In order to effectively avoid this problem, manufacturers can take the light guide plates more smoothly and conveniently. , The author proposes a processing mechanism for the light guide plate, which can prevent the vacuum adsorption phenomenon caused by pressing each other for a long time after the light guide plates are stacked. The following is a description of the processing mechanism of the light guide plate of this creation through the drawings and text. The content drawn in each figure is for the purpose of illustrating the technical characteristics of this creation. The dimensions of length, width, thickness and height shown in each figure, It does not represent the actual structure, ruler, scale, etc., which will be explained first.

Please refer to Figures 1 and 2, which are a schematic diagram of a processing mechanism and a schematic diagram of the structure of an embossing wheel according to an embodiment of the present invention. The light guide plate processing mechanism 1 of the present creation includes a film attachment device 10 , a pressing flower wheel 11 and a supporting device 12 . The film attaching device 10 is used for attaching a protective film 2 to the upper surface and/or the lower surface of the light guide plate 9 to protect the optical microstructure on the surface of the light guide plate 9 (not shown in the figure). The extrusion wheel 11 is arranged on one side of the film attachment device 10, and the surface of the extrusion wheel 11 has a pattern structure 111. After the extrusion wheel 11 is heated to a set temperature, the protective film 2 is rolled to form a depression corresponding to the pattern structure 111. The structure, for example, the area above the protective film 2 on the left side of the embossing wheel 11 in Fig. 1 is indicated by a darker line, which is the concave structure part formed after the protective film 11 is embossed. Among them, the pattern structure 111 of the embossing wheel 11 can be formed by engraving on the roller, for example, a plurality of grooves are cut out on the roller by a cutter, so that the embossing wheel 11 can form a pattern that can be embossed on the surface of the protective film 2 to form a concave structure. Structure 111. The supporting device 12 is disposed opposite to the pressing flower wheel 11 for supporting the light guide plate 9 so that the pressing flower wheel 11 is forced to roll on the protective film 2 . The object of the light guide plate 9 processed by the aforementioned processing mechanism 1 refers to a plate with an optical microstructure formed on the surface, and can be, for example, a separate sheet formed by injection molding, and the film is attached and stamped one by one. Processing, or by extruding a continuous long sheet, filming and stamping at one time. The aforementioned light guide plate manufacturing method has been a mature technology used in the relevant industry for a long time, and is not the key feature of this creation, so it will not be described here.

Accordingly, after the protective film 2 covering the surface of the light guide plate 9 is embossed by the processing mechanism 1, the vacuum adsorption phenomenon caused by the subsequent stacking of the light guide plate 9 can be effectively prevented. More specifically, when the protective film 2 is in a flat and smooth state, if the protective film 2 is pressed against each other for a long time, it will cause the two adjacent light guide plates 9 to form vacuum adsorption. The pressing wheel 11 of 1 can make the protective film 2 form a non-flat and smooth structure, and the protective film 2 with a concave structure can effectively prevent the vacuum adsorption phenomenon caused by extrusion.

In order to facilitate the movement of the light guide plate 9, in an implementation state, the supporting device 12 includes a plurality of passive conveying wheels 121, the passive conveying wheels 121 are arranged at intervals, and when the light guide plate 9 moves, the passive conveying wheels 121 are Its center is the axis of rotation. Through these passive conveying wheels 121 , in addition to forming a supporting function relative to the light guide plate 9 so that the embossing wheel 11 can smoothly emboss on the protective film 2 to form a concave structure, the light guide plate 9 can also be moved smoothly to continue the follow-up. In this structural state, the light guide plate 9 can be used as a moving part, and the embossing wheel 11 can be rotated in place, and the protective film 2 attached to the light guide plate 9 can be quickly and reliably printed.

As mentioned above, the processing mechanism 1 of this embodiment can emboss the light guide plate 9 that is the size of the gauge to be shipped, or can first emboss the continuous long sheet structure and then cut it into the desired gauge. In this embodiment, it is disclosed that the processing mechanism 1 may further include a laser cutting device 13 , which is arranged on one side of the embossing wheel 11 for cutting the light guide plate 9 after being embossed by the embossing wheel 11 . In specific implementation, the continuous long light guide plate 9 passes through the film attaching device 10 to attach the protective film 2 on the surface of the light guide plate, and then rolls the protective film 2 by the embossing wheel 11, so that the protective film 2 forms many The pattern structure 111 corresponds to the concave structure, and then the long strip light guide plate 9 is cut into the required size by the laser cutting device 13 to produce the light guide plate product ready for shipment.

In order to more reliably protect the light guide plate 9 and consider the smoothness of the processing process, the film attaching device 10 of the processing mechanism 1 may include two film material rollers 101, which are respectively disposed on the top side and the bottom side of the light guide plate 9 to protect the light guide plate 9. The film 2 is attached to the upper surface and the lower surface of the light guide plate 9 ; and the embossing wheel 11 is arranged on the top side of the light guide plate 9 to emboss the protective film 2 attached to the upper surface of the light guide plate 9 . In this way, the protection effect of the light guide plate 9 can be further improved, and at the same time, the processing of the light guide plate 9 can be smoother and more efficient under the installation state of the film attaching device 10 and the embossing wheel 11 .

In addition, in order to facilitate the embossing wheel 11 to emboss the protective film 2 to form a concave structure corresponding to the pattern structure 111 on the protective film 2, the embossing wheel 11 can be heated to a set temperature of 50-60°C, and then the protective film 2 is embossed. In this way, the protective film 2 can be softened by a slightly higher temperature, so that the pattern structure 111 can be smoothly printed on the protective film 2 .

Please continue to refer to FIG. 2 , in an implementation state, the pattern structures 111 of the embossing wheel 11 are distributed on the surface of the embossing wheel 11 to form a plurality of embossing areas 112 , and the embossing areas 112 are elongated and arranged at intervals. In this way, the concave structures formed by the embossing pattern wheel 11 on the protective film 2 can be more uniformly distributed, and the protective film 2 can be effectively prevented from being damaged excessively and the protection performance of the light guide plate 9 is affected.

Please refer to FIG. 3 together, which is a side view of the pressing flower wheel according to an embodiment of the present invention. Regarding the structural ruler of the embossing wheel 11, the distance D1 between any two adjacent embossing areas 112 can be set to 1±0.2mm. Through such structural features of the embossing area 112, in addition to facilitating the processing of the embossing wheel 11 to form the pattern structure 111, After the protective film 2 is rolled, the recessed structure can be formed into a more uniform structure distribution state.

In addition, with regard to the length and width of the embossing area 112, the present creation also proposes corresponding rules and regulations. For example, the length L of the embossing area 112 can be set to 100±0.5mm respectively, so that the embossing wheel 11 can be more suitable for various sizes. The light guide plate 9 product is effectively rolled against the protective film 2 on the light guide plate 9 .

For the width W of the embossing area 112, the width W of the embossing area 112 can be respectively 1.8±0.2mm, so that when the embossing wheel 11 rolls and embosses, the protective film 2 can form a more suitable concave structure state.

In addition, considering the size of the current common light guide plate 9, in an implementation state, the diameter A of the embossing wheel 11 can be set to 22±0.5mm, which is more suitable for embossing most light guide plates 9. Among them, the above paragraphs about the structural ruler and gauge conditions of the pressing flower wheel can be implemented separately, of course, can also be implemented simultaneously, so that the pressing flower wheel has better processing efficiency and so on.

For an example of the pattern structure 111 , please refer to the enlarged schematic part of the pattern structure of the pressed flower wheel in FIG. 3 together. In this embodiment, the pattern structure 111 includes a plurality of first twill grooves 1111 and a plurality of second twill grooves 1112. The first twill grooves 1111 are arranged in parallel and spaced apart from each other, and the second twill grooves 1112 are also arranged in parallel and spaced apart from each other. The first twill grooves 1111 and the second twill grooves 1112 are arranged in a staggered manner to form a lattice-like pattern. In this way, when the embossing wheel 11 is rolled on the protective film 2 , a plurality of depressions can be formed on the protective film 2 by the relative protruding portions formed by sandwiching the first twill groove 1111 and the second twill groove 1112 With these recessed structures, the vacuum adsorption phenomenon between the stacked light guide plates 9 can be avoided.

Further, when the pattern structure 111 is in the above state, the distance D2 between any two adjacent first twill grooves 1111 can be set to 1.5±0.2 mm, so that sufficient protrusions are formed by interlacing with the second twill grooves 1112. area for imprinting.

In addition, the distance D3 between any two adjacent second twill grooves 1112 can also be selected to be 1.5±0.2 mm, so that the processing steps of manufacturing the embossing wheel can be simplified. Of course, this characteristic condition can exist together with the above-mentioned condition of the distance D2 of the first twill grooves 1111 , so that the second twill grooves 1112 and the first twill grooves 1111 are in a corresponding distribution state.

In addition, in an implementation state, the inclination angle θ of the second twill groove 1112 can be set to be 45-60 degrees, as shown in FIG. 3 . With this restriction, it can also be relatively ensured that the pattern structure 111 has enough protruding areas to imprint the protective film 2 to form a corresponding concave structure. Similarly, the limited range of the inclination angle θ of the second twill grooves 1112 may also exist together with the above-mentioned spacing D2 of the first twill grooves 1111 and/or the spacing D3 of the second twill grooves 1112 .

To sum up, the processing mechanism of the light guide plate in this creation can effectively solve the vacuum adsorption phenomenon caused by the stacking of the light guide plate, and avoid the next light guide plate being simultaneously sucked up due to vacuum adsorption when the light guide plate is taken out later. The problem of falling, greatly optimizes the application yield of the light guide plate. The specific technical feature is that a protective film is attached to the light guide plate through a film attachment device, and a concave structure is formed on the protective film by means of an embossing wheel, so as to eliminate the vacuum adsorption phenomenon caused by the mutual extrusion of multiple light guide plates when stacking. Thus, the aforementioned problems when taking the light guide plate are avoided. Regarding the detailed structural features of the processing mechanism, this creation also proposes many additional structural states to facilitate better yield and efficiency in the processing process and imprinting performance, such as various types of embossing wheels used in applications The embodiment includes that the pattern structure is distributed on the embossing wheel to form a plurality of embossing areas, the ruler of the embossing area, the diameter of the embossing wheel, etc., and the pattern structure can include features such as the first twill groove and the second twill groove; or It is about the specific structural state of the film attaching device, the supporting device, etc., as well as the laser cutting device derived from the overall processing process and the set temperature of the printing wheel heating.

1: Processing mechanism 10: Attachment film device 101: Membrane roller 11: Press flower wheel 111: Pattern structure 1111: The first twill groove 1112: Second twill groove 112: Printing area 12: Support device 121: Passive conveying wheel 13: Laser cutting device 2: Protective film 9: Light guide plate D1: The distance between any two adjacent imprinting areas D2: The distance between any two adjacent first twill grooves D3: The distance between any two adjacent second twill grooves L: the length of the stamped area W: the width of the imprint area A: Diameter of pressing wheel θ: The inclination angle of the second twill groove

FIG. 1 is a schematic diagram of a processing mechanism according to an embodiment of the present invention. Fig. 2 is a schematic diagram of the structure of the pressing flower wheel according to an embodiment of the present invention. Figure 3 is a side view of the pressing flower wheel according to an embodiment of the present invention.

1: Processing mechanism

10: Attachment film device

101: Membrane roller

11: Press flower wheel

12: Support device

121: Passive conveying wheel

13: Laser cutting device

2: Protective film

9: Light guide plate

Claims (14)

A processing mechanism for a light guide plate, comprising: a film attaching device for attaching a protective film to the upper surface and/or the lower surface of the light guide plate; An embossing wheel is installed on one side of the film attaching device. The surface of the embossing wheel has a pattern structure. After being heated to a set temperature, the embossing wheel rolls the protective film so that the protective film forms a concave structure corresponding to the pattern structure. ;and A supporting device is arranged opposite to the pressing flower wheel, and is used to support the light guide plate so that the pressing flower wheel can be rolled and pressed on the protective film. The light guide plate processing mechanism of claim 1, wherein the pattern structure is distributed on the surface of the embossing wheel to form a plurality of imprinting areas, and the imprinting areas are elongated and arranged at intervals. The processing mechanism of the light guide plate according to claim 2, wherein the distance between any two adjacent imprinting areas is 1±0.2mm. The processing mechanism of the light guide plate as claimed in claim 2, wherein the lengths of the imprinting areas are respectively 100±0.5mm. The processing mechanism of the light guide plate as claimed in claim 2, wherein the widths of the stamping areas are respectively 1.8±0.2mm. The processing mechanism of the light guide plate according to claim 2, wherein the diameter of the embossing wheel is 22±0.5mm. The light guide plate processing mechanism of claim 1 or 2, wherein the pattern structure comprises a plurality of first twill grooves and a plurality of second twill grooves, the first twill grooves are arranged in parallel and spaced apart from each other, and the first twill grooves The two twill grooves are arranged in parallel and spaced apart from each other, and the first twill grooves and the second twill grooves are staggered with each other. The light guide plate processing mechanism of claim 7, wherein the spacing between any two adjacent first twill grooves is 1.5±0.2 mm. The light guide plate processing mechanism of claim 7, wherein the spacing between any two adjacent second twill grooves is 1.5±0.2 mm. The light guide plate processing mechanism of claim 7, wherein the inclination angle of the second twill grooves is 45-60 degrees. The light guide plate processing mechanism of claim 1, wherein the abutting device comprises a plurality of passive conveying wheels, the passive conveying wheel trains are arranged at intervals, and the center of the passive conveying wheel trains is the axis when the light guide plate moves Heart spins. The processing mechanism of the light guide plate as claimed in claim 1 further includes a laser cutting device, which is arranged on one side of the embossing wheel for cutting the light guide plate after being embossed by the embossing wheel. The processing mechanism of the light guide plate according to claim 1, wherein the film attaching device comprises two film material rollers, which are respectively arranged on the top side and the bottom side of the light guide plate, so as to attach the protective film to the upper surface and the lower surface of the light guide plate. surface; the embossing wheel is arranged on the top side of the light guide plate to emboss the protective film attached to the surface of the light guide plate. The processing mechanism of the light guide plate according to claim 1, wherein the set temperature is 50-60°C.

Images