CN113771393A - Automatic forming device and method for light guide plate - Google Patents
Automatic forming device and method for light guide plate Download PDFInfo
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- CN113771393A CN113771393A CN202111141247.1A CN202111141247A CN113771393A CN 113771393 A CN113771393 A CN 113771393A CN 202111141247 A CN202111141247 A CN 202111141247A CN 113771393 A CN113771393 A CN 113771393A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 139
- 239000002994 raw material Substances 0.000 claims abstract description 134
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 32
- 230000001681 protective effect Effects 0.000 claims description 20
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 9
- 238000000926 separation method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00663—Production of light guides
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Abstract
The application provides a light guide plate automatic molding device, including the frame, install the feeding mechanism in the frame to and install in the frame, and the feeding mechanism, first mechanism, site forming mechanism, the second mechanism and the blank mechanism of rectifying that set gradually along the direction of delivery of the feed roll in the feeding mechanism. The application also provides an automatic forming method of the light guide plate, which comprises the steps of taking the edge of the raw material in the length direction as a reference, judging the position information of the reference through a first deviation rectifying mechanism, correcting the position of the raw material, and then pressing the mesh points; and then, further correcting the position of the raw material by a second deviation correcting mechanism, and finally cutting to form the light guide plate. According to the automatic forming device and method for the light guide plate, the accuracy of the forming position of the mesh points is guaranteed by performing first deviation rectification before the mesh points are formed; through rectifying before cutting the shaping for the second time, guaranteed the degree of accuracy of blank position, improved the shaping quality and the production efficiency of light guide plate.
Description
Technical Field
The application belongs to the technical field of light guide plate processing and manufacturing, and particularly relates to an automatic light guide plate forming device and a forming method thereof.
Background
The principle of the light guide plate is that the total reflection of the LED light source light is destroyed by the mesh points, so that the light comes out of the light guide plate, and the purpose that the LED line light source is changed into a surface light source is achieved.
Along with the lightness and thinness of the light guide plate used by the keyboard backlight module, the whole thickness of the light guide plate is even below 0.2mm, and because of the limitation of high-brightness LED packaging, the packaging thickness of the high-brightness LED is usually above 0.3mm, so that the LED light energy can only be partially LED into the light guide plate, a large amount of loss of the light energy is caused, the utilization rate is low, and the light-emitting brightness is insufficient. In order to solve the problem, the currently adopted corresponding mode is that a wedge-shaped structure is additionally arranged on the light incident side of the light guide plate according to the size of the light source, which is also called a horn mouth in the industry, so that light of the light source can enter the light guide plate by virtue of the wedge-shaped structure, and the utilization rate of the light is improved.
The manufacturing method of the light guide plate with the existing horn mouth wedge-shaped structure comprises the following steps: the light guide plate with the horn-shaped openings is formed by injection molding, and due to the limitation of an injection molding process, ultra-thinning (below 0.2 mm) cannot be realized; then marking positioning points of the relative positions on the light guide plate, and punching positioning holes by capturing the positions of the positioning points through a punching machine; and finally, punching the appearance structure of the light guide plate by using a hardware mould according to the relative position of the positioning hole as a reference. However, each process of the process needs to be carried out manually and independently, the production processes are multiple, the efficiency is low, and each process has manual operation errors, so that the size error of the bell mouth is large, and the reject ratio is high.
Disclosure of Invention
An object of the embodiments of the present application is to provide an automatic forming device for a light guide plate and a forming method thereof, so as to solve the technical problems of large error of the processing dimension of the light guide plate and high fraction defective in the prior art.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: the automatic forming device for the light guide plate comprises a rack, a feeding mechanism, a first deviation correcting mechanism, a mesh point forming mechanism, a second deviation correcting mechanism and a cutting mechanism; the feeding mechanism is arranged on the rack and comprises a plurality of feeding rollers arranged at intervals, and raw materials for manufacturing the light guide plate are conveyed on the plurality of feeding rollers; the first deviation correcting mechanism is arranged on the rack and used for adjusting the position of the raw material on the feeding roller; the mesh point forming mechanism is arranged on the rack and is arranged on one side of the first deviation rectifying mechanism, which is far away from the feeding mechanism, along the conveying direction of the raw materials; the second deviation correcting mechanism is arranged on the rack and is arranged on one side, away from the first deviation correcting mechanism, of the mesh point forming mechanism along the conveying direction of the raw materials; the material cutting mechanism is installed on the rack and arranged on one side, deviating from the mesh point forming mechanism, of the second deviation rectifying mechanism along the conveying direction of the raw materials, and is used for cutting the raw materials into the light guide plate.
Optionally, the first deviation rectifying mechanism comprises an information acquisition unit, a movement unit and a control unit; the information acquisition unit is used for acquiring offset information of the raw material on the feeding roller; the moving unit is connected to the frame and can drive the raw materials to move along the direction perpendicular to the conveying direction of the raw materials; the control unit is electrically connected with the information acquisition unit and the motion unit and is used for receiving the offset information and sending an action instruction to the motion unit.
Optionally, the moving unit comprises a power member and a movable roller; the power part is arranged on the frame; the movable roller with the power spare is connected, the movable roller is in under the drive of power spare, can along the axis direction of movable roller self removes to the drive is around locating the movable roller raw and other materials remove.
Optionally, the mesh point forming mechanism comprises a press roller and a first bottom shaft; the compression roller is arranged on the frame and is arranged on one side of the raw material, and the compression roller can rotate around the axis of the compression roller; the first bottom shaft is arranged on the rack and is arranged on one side of the raw material, which is far away from the compression roller, and the first bottom shaft can rotate around the axis of the first bottom shaft;
the compression roller and the first bottom shaft are positioned on the same plane perpendicular to the conveying direction of the raw materials, the compression roller and the first bottom shaft are matched to extrude the raw materials, and the compression roller is provided with a plurality of salient points for forming mesh points on the raw materials.
Optionally, the blanking mechanism comprises a knife roller and a second bottom shaft; the knife roll is arranged on the frame and is arranged on one side of the raw material, and the knife roll can rotate around the axis of the knife roll; the second bottom shaft is arranged on the rack and is arranged on one side, away from the knife roll, of the raw material, and the second bottom shaft can rotate around the axis of the second bottom shaft;
the knife roll and the second bottom shaft are positioned on the same plane perpendicular to the conveying direction of the raw materials, and the knife roll and the second bottom shaft are matched to extrude the raw materials.
Optionally, the second deviation rectifying mechanism is the same as the first deviation rectifying mechanism in structure.
The application also provides an automatic forming method of the light guide plate, which adopts the automatic forming device of the light guide plate, and the automatic forming method of the light guide plate comprises the following steps:
mounting the raw material on the feeding mechanism, and conveying the raw material through a plurality of feeding rollers;
when the feeding roller conveys the raw materials to pass through the first deviation rectifying mechanism, the first deviation rectifying mechanism detects position information of edges of the raw materials in the length direction, and if the positions of the edges deviate relative to a reference position, the first deviation rectifying mechanism drives the raw materials to move and corrects the position deviation of the raw materials;
the feeding roller conveys the raw materials to the mesh point forming mechanism to press mesh points;
after the mesh points are pressed, the feeding roller conveys the raw materials with the mesh points to the second deviation rectifying mechanism, the second deviation rectifying mechanism detects position information of edges of the raw materials with the mesh points in the length direction, and if the positions of the edges deviate relative to a reference position, the second deviation rectifying mechanism drives the raw materials to move and corrects the position deviation of the raw materials with the mesh points;
the feeding roller conveys the raw materials with the screen dots into the cutting mechanism, and the cutting mechanism cuts the raw materials with the screen dots into the light guide plate.
Optionally, the raw material is a strip-shaped coil material, one surface of the raw material is used for forming mesh points, and the other surface of the raw material is covered with a protective film; the raw material is supported on the feeding roller through the protective film.
Optionally, the automatic light guide plate forming device further comprises a receiving mechanism, after the raw materials are cut and formed, the generated waste materials are separated from the protection protective film through the receiving mechanism, and the formed light guide plate is pulled out of the automatic light guide plate forming device through the protection film.
Optionally, the receiving mechanism further comprises a receiving platform, and the receiving platform is arranged on one side, deviating from the cutting mechanism, of the separation roller along the conveying direction of the raw materials and used for collecting the finished light guide plate.
The application provides a light guide plate automatic molding device's beneficial effect lies in: compared with the prior art, among this application light guide plate automatic molding device, first mechanism, the site forming mechanism of rectifying, second mechanism and blank mechanism of rectifying set gradually along the direction of delivery of raw and other materials, realized the automated production of light guide plate processing, improved the production efficiency of light guide plate greatly, guaranteed the stability and the volume production nature of product. The first deviation correcting mechanism is arranged in front of the mesh point forming mechanism, so that the accuracy of a mesh point forming position is ensured; through set up the second mechanism of rectifying before blank mechanism, guaranteed the degree of accuracy of blank position, improved the shaping quality of light guide plate.
The application provides a light guide plate automatic molding method's beneficial effect lies in: compared with the prior art, in the automatic forming method of the light guide plate, the accuracy of the forming position of the mesh point can be ensured by performing the first deviation rectification before the mesh point is formed; through rectifying before cutting the shaping for the second time, can guarantee the degree of accuracy of blank position to the shaping quality of light guide plate has been improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an automatic light guide plate molding device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of raw materials used in an embodiment of the present application;
FIG. 3 is a schematic cross-sectional structural view of the raw materials used in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a light guide plate manufactured according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a cross section of a light guide plate manufactured according to an embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
100-raw material; 101-a light guide plate; 1011-mesh points; 1012-light source mounting groove; 1013-wedge structure; 102-waste material; 103-a protective film;
1-a feeding mechanism; 11-a feed roll; 12-a loading reel;
2-a first deviation rectifying mechanism; 21-an information acquisition unit; 22-a motion unit;
3-a mesh point forming mechanism; 31-a first bottom shaft; 32-a press roll;
4-a second deviation rectifying mechanism;
5-a material cutting mechanism; 51-a second bottom shaft; 52-knife roll;
61-upper separation roller; 62-a lower separation roller; 63-feeding a material receiving reel; 64-lower material receiving reel; 65-a material receiving platform.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.
Furthermore, the terms "second", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "second" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 5, an automatic light guide plate forming apparatus and a forming method thereof according to an embodiment of the present application will be described. The automatic light guide plate forming device comprises a rack, a feeding mechanism 1, a first deviation correcting mechanism 2, a mesh point forming mechanism 3, a second deviation correcting mechanism 4 and a cutting mechanism 5; the feeding mechanism 1 is arranged on a frame, the feeding mechanism 1 comprises a plurality of feeding rollers 11 arranged at intervals, raw materials 100 for manufacturing the light guide plate 101 are collapsed through tension between the feeding rollers 11, and the raw materials 100 are conveyed on the feeding rollers 11; the first deviation correcting mechanism 2 is arranged on the frame and used for adjusting the position of the raw material 100 on the feeding roller 11; the mesh point forming mechanism 3 is arranged on the frame and is arranged on one side of the first deviation rectifying mechanism 2, which is far away from the feeding mechanism 1, along the conveying direction of the raw material 100; the second deviation correcting mechanism 4 is arranged on the frame and is arranged on one side of the screen point forming mechanism 3, which is far away from the first deviation correcting mechanism 2, along the conveying direction of the raw material 100; the cutting mechanism 5 is installed on the frame, and is disposed on a side of the second deviation rectifying mechanism 4 away from the dot forming mechanism 3 along the conveying direction of the raw material 100, so as to cut the raw material 100 into the light guide plate 101.
The application provides a light guide plate 101 automatic molding device compares with prior art, and first mechanism 2, the site forming mechanism 3 of rectifying, second rectify and construct 4 and blank mechanism 5 of rectifying along raw and other materials 100's direction of delivery sets gradually, has realized the automated production of light guide plate 101 processing, has improved light guide plate 101's production efficiency greatly, has guaranteed the stability and the volume production nature of product. The accuracy of the mesh point forming position is ensured by arranging the first deviation rectifying mechanism 2 in front of the mesh point forming mechanism 3; through set up second mechanism 4 of rectifying before blank mechanism 5, guaranteed the degree of accuracy of blank position, improved the shaping quality of light guide plate 101.
In an embodiment of the present application, please refer to fig. 1 to 5, the first deviation rectifying mechanism 2 includes an information collecting unit 21, a moving unit 22 and a control unit; the information acquisition unit 21 is used for acquiring offset information of the raw material 100 on the feeding roller 11; the moving unit 22 is connected to the frame and can drive the raw material 100 to move along the direction perpendicular to the conveying direction of the raw material 100; the control unit is electrically connected with the information acquisition unit 21 and the movement unit 22, and is used for receiving the offset information and sending an action instruction to the movement unit 22. The information collecting unit 21 includes a CCD camera for capturing positional information of the raw material 100. CCD is a charge-coupled device, which is a detecting element that uses charge to represent the signal size and transmits signals in a coupled manner, and has a series of advantages of self-scanning, wide sensing spectrum, small distortion, small size, light weight, low system noise, low power consumption, long service life, high reliability, and can be made into a very high-integration assembly, such as: a CCD camera. The control unit may employ an MCU or the like.
In this embodiment, the first deviation rectifying mechanism 2 works according to the following principle: when the CCD camera captures the deviation of the material, the deviation information is transmitted back to the control unit, the control unit sends an instruction to the motion unit 22, and the motion unit 22 moves according to the instruction of the control unit, so that the raw material 100 is compensated in position.
In one embodiment of the present application, referring to fig. 1-5, the moving unit 22 includes a power member and a movable roller; the power part is arranged on the frame; the movable roller is connected with the power part, and the movable roller can move along the axis direction of the movable roller under the driving of the power part and drives the raw material 100 around the movable roller to move. The power part can adopt an air cylinder, an oil cylinder or a linear motor and is used for driving the movable roller to do linear motion, and the movable roller can also rotate around the axis of the movable roller.
In one embodiment of the present application, referring to fig. 1-5, the feed roller 11 can rotate around its axis to support and move the raw material 100. In this embodiment, at least one feeding roller 11 is connected to a driving member, the feeding roller 11 is driven to rotate by the driving member, and the raw material 100 is driven to move by the friction force between the feeding roller 11 and the raw material 100.
In one embodiment of the present application, referring to fig. 1 to 5, the dot forming mechanism 3 includes a first bottom shaft 31 and a pressing roller 32; the press roll 32 is arranged on the frame and is arranged at one side of the raw material 100, and the press roll 32 can rotate around the axis of the press roll; the first bottom shaft 31 is arranged on the frame and is arranged on one side of the raw material 100, which is far away from the compression roller, and the first bottom shaft 31 can rotate around the axis of the first bottom shaft 31; the pressure roller 32 and the first bottom shaft 31 are located on the same plane perpendicular to the conveying direction of the raw material 100, the pressure roller 32 and the first bottom shaft 31 cooperate to extrude the raw material 100, a plurality of salient points are arranged on the pressure roller 32, and the pressure roller 32 and the first bottom shaft 31 extrude with each other to form dots 1011 on the raw material 100, as shown in fig. 4. The pressure roller 32 is a hot press roller 32, and the mesh points 1011 are formed on the raw material 100 by hot press molding. Hot press forming is a simple and common processing method in the plastic processing industry, which mainly comprises heating a processing mold, injecting a sample, fixing a mold on a heating plate under pressure, controlling the melting temperature and time of the sample to achieve solidification and cooling after melting, and taking out the mold product.
In one embodiment of the present application, referring to fig. 1 to 5, the blanking mechanism 5 includes a second bottom shaft 51 and a knife roll 52; the knife roll 52 is arranged on the frame and is arranged at one side of the raw material 100, and the knife roll 52 can rotate around the axis of the knife roll; the second bottom shaft 51 is arranged on the frame and is arranged on one side, away from the knife roll 52, of the raw material 100, and the second bottom shaft 51 can rotate around the axis of the second bottom shaft; wherein, the knife roll 52 and the second bottom shaft 51 are in the same plane perpendicular to the conveying direction of the raw material 100, and the knife roll 52 and the second bottom shaft 51 cooperate to extrude the raw material 100. The molded light guide plate has a light source mounting groove 1012 for mounting an LED on one side of the wedge 1013. The cutter roller 52 is a circular cutter shaft, and the boundary dimension of the light guide plate 101 and the light source mounting groove 1012 are cut by the rotation of the circular cutter shaft, and are formed in one step.
In an embodiment of the present application, referring to fig. 1 to 5, the second deviation rectifying mechanism 4 and the first deviation rectifying mechanism 2 have the same structure. Through set up second mechanism 4 of rectifying before blank mechanism 5, guaranteed the degree of accuracy of blank position, improved the shaping quality of light guide plate 101.
In an embodiment of the present application, referring to fig. 1 to 5, the raw material 100 is an extruded (ultra-thin less than 0.2 mm) strip-shaped coil with a wedge-shaped structure 1013, the feeding mechanism 1 further includes a feeding reel 12, the coil of the raw material 100 is sleeved on the feeding reel 12, and the feeding reel 12 can rotate around its axis to unwind the raw material 100. The raw material 100 includes a material body and a protective film 103 attached to one side of the material body. When the cutter roll 52 cuts, only the material body is cut, and the protective film 103 cannot be cut. The raw material 100 is supported by the feed roller 11 with a protective film. By providing the protective film 103, the raw material 100 can be protected during the processing, and scratches and damage of the raw material 100 during conveyance on the feed roller 11 can be reduced.
In an embodiment of the present application, referring to fig. 1 to 5, the automatic forming apparatus for a light guide plate 101 further includes a material receiving mechanism, which is installed on the frame and disposed on a side of the material cutting mechanism 5 away from the second deviation rectifying mechanism 4 along the conveying direction of the raw material 100. The collection of the molded product and the waste 102 is facilitated by the provision of a receiving mechanism.
In one embodiment of the present application, referring to fig. 1 to 5, the material receiving mechanism includes a separating roller and a receiving roller; the separation roller is rotationally connected with the frame and is used for separating the residual waste material 102 from the protective film 103 after the material body is cut into the light guide plate; the material receiving reel is rotatably connected to the frame and arranged on one side of the separating roller, which is far away from the material cutting mechanism, along the conveying direction of the raw materials 100, and is used for winding the waste materials 102 and the protective film 103. The separation rollers include an upper separation roller 61 and a lower separation roller 62 respectively disposed at upper and lower sides of the raw material 100, the upper separation roller 61 is in contact with the scrap 102, the lower separation roller 62 is in contact with the protective film 103, and the scrap 102 is separated from the protective film 103 by the rotation of the separation rollers. The material receiving reel comprises an upper material receiving reel 63 above the raw material 100 and a lower material receiving reel 64 arranged below the raw material 100, wherein the upper material receiving reel 63 is used for collecting the waste material 102, and the lower material receiving reel 64 is used for collecting the protective film 103. The material receiving mechanism further comprises a material receiving platform 65, after the raw material 100 is cut and formed, the generated waste 102 is separated from the protective film 103 through the material receiving mechanism, the protective film 103 pulls the formed light guide plate 101 out of the automatic forming device of the light guide plate 101, and the formed light guide plate 101 falls on the material receiving platform 65 after being separated from the protective film 103.
The application provides an automatic forming method of a light guide plate, which adopts the automatic forming device of the light guide plate, and comprises the following steps:
(1) mounting a raw material 100 on a feeding mechanism 1, and feeding the raw material 100 through a plurality of feeding rollers 11;
(2) when the feeding roller 11 conveys the raw material 100 to pass through the first deviation rectifying mechanism 2, the first deviation rectifying mechanism 2 detects position information of an edge of the raw material 100 in the length direction, if the position of the edge deviates relative to a reference position, the first deviation rectifying mechanism 2 drives the raw material 100 to move, and the position deviation of the raw material 100 is rectified;
(3) the feeding roller 11 conveys the raw material 100 to enter the mesh point forming mechanism 3 to press mesh points;
(4) after the mesh points are pressed, the feeding roller conveys the raw materials with the mesh points to the second deviation rectifying mechanism 4, the second deviation rectifying mechanism 4 detects position information of edges of the raw materials with the mesh points in the length direction, and if the positions of the edges deviate relative to a reference position, the second deviation rectifying mechanism 4 drives the raw materials with the mesh points to move and corrects the position deviation of the raw materials with the mesh points;
(5) the feeding roller 11 conveys the raw material with the screen dots into the cutting mechanism 5, and the cutting mechanism 5 cuts the raw material with the screen dots into the light guide plate 101.
Compared with the prior art, the automatic forming method of the light guide plate has the advantages that the accuracy of the forming position of the mesh points can be ensured by performing first deviation rectification before the mesh points are formed; through rectifying before cutting the shaping for the second time, can guarantee the degree of accuracy of blank position to the shaping quality of light guide plate 101 has been improved. For the raw material 100 with the horn mouth, the wedge-shaped position is processed more accurately, the production cost is greatly reduced, the yield is improved, a customer replaces the light guide plate made of a plane material with the ultrathin horn mouth wedge-shaped light guide plate at lower cost, and better social and economic benefits are realized.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An automatic molding device for a light guide plate, comprising:
a machine frame, a plurality of guide rails and a plurality of guide rails,
the feeding mechanism (1) is arranged on the rack, the feeding mechanism (1) comprises a plurality of feeding rollers (11) arranged at intervals, and raw materials (100) for manufacturing the light guide plate (101) are conveyed on the plurality of feeding rollers (11);
the first deviation correcting mechanism (2) is arranged on the rack and used for adjusting the position of the raw material (100) on the feeding roller (11);
the mesh point forming mechanism (3) is arranged on the rack and is arranged on one side, away from the feeding mechanism (1), of the first deviation rectifying mechanism (2) along the conveying direction of the raw materials (100);
the second deviation rectifying mechanism (4) is arranged on the rack and is arranged on one side, away from the first deviation rectifying mechanism (2), of the mesh point forming mechanism (3) along the conveying direction of the raw materials (100); and
and the cutting mechanism (5) is arranged on the rack and arranged on one side of the second deviation rectifying mechanism (4) departing from the mesh point forming mechanism (3) along the conveying direction of the raw material (100) so as to cut the raw material (100) into the light guide plate (101).
2. The automatic molding apparatus for light guide plate according to claim 1, wherein the first deviation correcting mechanism (2) comprises:
an information acquisition unit (21) for acquiring offset information of the raw material (100) on the feed roller (11);
a moving unit (22) connected to the frame and capable of moving the raw material (100) along a direction perpendicular to the conveying direction of the raw material (100); and
and the control unit is electrically connected with the information acquisition unit (21) and the movement unit (22), and is used for receiving the offset information and sending an action instruction to the movement unit (22).
3. The light guide plate automatic molding device according to claim 2, wherein the moving unit (22) comprises:
a power member mounted to the frame, an
The movable roller is connected with the power part, the movable roller can move along the axis direction of the movable roller under the driving of the power part, and the movable roller is driven to move around the raw material (100) arranged on the movable roller.
4. The automatic molding device for light guide plate according to claim 1, wherein the dot molding mechanism (3) comprises:
the pressing roller (32) is arranged on the frame and is arranged on one side of the raw material (100), and the pressing roller (32) can rotate around the axis of the pressing roller; and
the first bottom shaft (31) is arranged on the rack and is arranged on one side, away from the compression roller (32), of the raw material (100), and the first bottom shaft (31) can rotate around the axis of the first bottom shaft;
the pressing roller (32) and the first bottom shaft (31) are positioned on the same plane perpendicular to the conveying direction of the raw material (100), the pressing roller (32) and the first bottom shaft (31) are matched with each other to extrude the raw material (100), and a plurality of salient points are arranged on the pressing roller (32) and used for forming mesh points on the raw material (100).
5. The automatic molding apparatus for light guide plates according to claim 1, wherein the blanking mechanism (5) comprises:
the knife roll (52) is arranged on the frame and is arranged on one side of the raw material (100), and the knife roll (52) can rotate around the axis of the knife roll; and
the second bottom shaft (51) is arranged on the frame and is arranged on one side, away from the knife roller (52), of the raw material (100), and the second bottom shaft (51) can rotate around the axis of the second bottom shaft;
the knife roller (52) and the second bottom shaft (51) are in the same plane perpendicular to the conveying direction of the raw material (100), and the knife roller (52) and the second bottom shaft (51) are matched to extrude the raw material (100).
6. The automatic molding apparatus for light guide plate according to claim 1, wherein the second deviation correcting mechanism (4) is identical in structure to the first deviation correcting mechanism (2).
7. An automatic molding method of a light guide plate using the automatic molding apparatus of a light guide plate according to any one of claims 1 to 6, the automatic molding method of a light guide plate comprising:
mounting the raw material (100) on the feeding mechanism (1), and conveying the raw material (100) through a plurality of feeding rollers (11);
when the feeding roller (11) conveys the raw material (100) to pass through the first deviation rectifying mechanism (2), the first deviation rectifying mechanism (2) detects position information of an edge of the raw material (100) in the length direction, and if the position of the edge deviates relative to a reference position, the first deviation rectifying mechanism (2) drives the raw material (100) to move so as to correct the position deviation of the raw material (100);
the feeding roller (11) conveys the raw material (100) to the mesh point forming mechanism (3) to press mesh points;
after the mesh points are pressed, the feeding roller (11) conveys the raw material with the mesh points into the second deviation rectifying mechanism (4), the second deviation rectifying mechanism (4) detects position information of edges of the raw material with the mesh points in the length direction, and if the positions of the edges deviate relative to a reference position, the second deviation rectifying mechanism (4) drives the raw material (100) to move so as to correct the position deviation of the raw material with the mesh points;
the feeding roller (11) conveys the raw materials with the screen dots into the cutting mechanism (5), and the cutting mechanism (5) cuts the raw materials with the screen dots into the light guide plate (101).
8. The automatic molding method of a light guide plate according to claim 7, wherein the raw material (100) is a strip-shaped coil material, one side of the raw material (100) is used for dot molding, and the other side of the raw material (100) is covered with a protective film (103); the raw material (100) is carried on the feed roller (11) with the protective film (103).
9. The method as claimed in claim 8, wherein the automatic forming apparatus further comprises a material receiving mechanism, the waste material (102) generated after the raw material (100) is cut and formed is separated from the protective film (103) by the material receiving mechanism, and the protective film (103) pulls the formed light guide plate (101) out of the automatic forming apparatus.
10. The method for automatically forming a light guide plate according to claim 9, wherein the receiving mechanism further comprises a receiving platform (65) disposed on a side of the separating roller facing away from the cutting mechanism (5) along a conveying direction of the raw material (100) for collecting a finished light guide plate (101).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111141247.1A CN113771393B (en) | 2021-09-28 | 2021-09-28 | Automatic forming device and forming method for light guide plate |
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| CN202111141247.1A CN113771393B (en) | 2021-09-28 | 2021-09-28 | Automatic forming device and forming method for light guide plate |
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| CN113771393A true CN113771393A (en) | 2021-12-10 |
| CN113771393B CN113771393B (en) | 2024-08-02 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101449895B1 (en) * | 2014-02-04 | 2014-10-13 | 박대선 | Device for producing a light guide plate |
| CN212097183U (en) * | 2020-03-09 | 2020-12-08 | 南京贝迪电子有限公司 | Light guide film mesh point processing equipment |
| CN213830393U (en) * | 2020-12-01 | 2021-07-30 | 江苏豪福伟业智能装备有限公司 | Assembly line is decided to panel tectorial membrane |
| CN216182964U (en) * | 2021-09-28 | 2022-04-05 | 东莞市烨光璇电子科技有限公司 | Automatic forming device for light guide plate |
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2021
- 2021-09-28 CN CN202111141247.1A patent/CN113771393B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101449895B1 (en) * | 2014-02-04 | 2014-10-13 | 박대선 | Device for producing a light guide plate |
| CN212097183U (en) * | 2020-03-09 | 2020-12-08 | 南京贝迪电子有限公司 | Light guide film mesh point processing equipment |
| CN213830393U (en) * | 2020-12-01 | 2021-07-30 | 江苏豪福伟业智能装备有限公司 | Assembly line is decided to panel tectorial membrane |
| CN216182964U (en) * | 2021-09-28 | 2022-04-05 | 东莞市烨光璇电子科技有限公司 | Automatic forming device for light guide plate |
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| CN113771393B (en) | 2024-08-02 |
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