CN109323162B - Backlight module production line - Google Patents
Backlight module production line Download PDFInfo
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- CN109323162B CN109323162B CN201810676128.8A CN201810676128A CN109323162B CN 109323162 B CN109323162 B CN 109323162B CN 201810676128 A CN201810676128 A CN 201810676128A CN 109323162 B CN109323162 B CN 109323162B
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- guide plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention belongs to the technical field of backlight module production lines, and particularly relates to a backlight module production line, which comprises a first discharging device for providing a light guide plate raw material, a second discharging device for providing a reflecting plate raw material and a third discharging device for providing a light shielding plate raw material, wherein the light guide plate raw material comprises a light guide layer and a glue layer, the light guide plate raw material is cut by a first cutting device to obtain a light guide plate, the light guide plate is adhered to the glue layer, a light guide plate, the reflecting plate raw material and the light shielding plate raw material are hot-pressed by a hot pressing device to form a combined module, and then the second cutting device is used for cutting the combined module to obtain a backlight module. Because the second cutting device cuts, the light guide plate is fixed for the position of light screen raw materials and reflecting plate raw materials, then the light guide plate of backlight unit is accurate for the position of reflecting plate and light screen, and the uniformity of every backlight unit is good, and the production process of whole backlight unit realizes automatic operation, has improved backlight unit's production efficiency and yields, also saves the labour cost greatly.
Description
Technical Field
The invention belongs to the technical field of backlight module production lines, and particularly relates to a backlight module production line.
Background
The backlight module of the notebook keyboard comprises the following components: a light shielding plate, a light guide plate and a reflecting plate. The light-shielding plate is characterized in that white oil is firstly brushed on the upper surface of the light-shielding plate raw material, a layer of black oil is covered on the surface of the white oil, then a water gel is brushed on the lower surface of the white oil, and the appearance of the single light-shielding plate is cut by a cutter die. The reflecting plate needs to brush black oil on the lower surface of the reflecting plate raw material, brush water gel on the upper surface of the reflecting plate raw material, and then cut the appearance of the single reflecting plate by a knife die. The light guide plate raw material is directly cut into the shape of a single light guide plate by a knife die. Meanwhile, the appearance of the light shielding plate is the same as that of the reflecting plate, and the appearance of the light guide plate is smaller than that of the light shielding plate and the reflecting plate. When the light shielding plate, the light guide plate and the reflecting plate are assembled, the light guide plate is clamped between the light shielding plate and the reflecting plate, and the light shielding plate, the light guide plate and the reflecting plate are assembled into the backlight module by the light shielding plate and the reflecting plate which are wrapped between the light shielding plate and the reflecting plate through the adhesive action of the water gel due to the fact that the water gel is arranged on the surfaces of the light shielding plate and the reflecting plate.
In the processing process, the light shielding plate is required to be cut and molded in a single piece, the light guide plate is required to be cut and molded in a single piece, the light shielding plate, the light guide plate and the reflecting plate are assembled together manually, and the light shielding plate, the light guide plate and the reflecting plate are assembled into a whole after being positioned by a positioning tool. The processing process is complex, the manual operation efficiency is low, and the reject ratio of the backlight module is high.
Disclosure of Invention
The invention aims to provide a backlight module production line, which aims to solve the technical problems of low efficiency and high reject ratio in the production process of backlight modules in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: a backlight module production line, comprising:
the conveying device is used for conveying the light guide plate raw materials, and the light guide plate raw materials comprise a light guide layer and an adhesive layer adhered to the surface of the light guide layer;
the first discharging device is used for conveying the light guide plate raw materials to the conveying device;
the first cutting device is used for cutting the light guide layer conveyed by the conveying device, so that the light guide layer forms a plurality of light guide plates and waste plates which are adhered to the adhesive layer;
a first rolling device for rolling the waste plate;
the second discharging device is used for conveying the reflecting plate raw materials to the upper parts of the light guide plates;
the third discharging device is used for conveying the raw materials of the light shielding plate to the lower part of the adhesive layer;
the hot pressing device is used for respectively connecting the reflecting plate raw material and the shading plate raw material on the light guide plate and the adhesive layer in a hot pressing way to form a combined module;
the second cutting device is used for cutting the combined module and cutting the combined module to form a plurality of backlight modules which comprise the light guide plate, the reflecting plate positioned above the light guide plate and the light shielding plate positioned below the adhesive layer.
Further, the backlight module production line further comprises a screen dot embossing device for embossing screen dots on the light guide layer, and the screen dot embossing device is located at the discharging position of the first discharging device.
Further, the screen dot embossing device comprises a pressing die, a first hot pressing roller and a first rotating roller which are oppositely arranged, the pressing die is detachably arranged on the first hot pressing roller, a first material passing gap for the light guide plate raw material to pass through is formed between the first hot pressing roller and the first rotating roller, and the pressing die and the first rotating roller are respectively abutted on the light guide layer and the adhesive layer when the light guide plate raw material passes through the first material passing gap.
Further, the hot press device comprises a second hot press roller and a third hot press roller which are oppositely arranged, the second hot press roller and the third hot press roller are respectively abutted to the reflecting plate raw material and the light shielding plate raw material, and the reflecting plate raw material and the light shielding plate raw material are respectively connected to the light guide plate and the adhesive layer in a hot press mode to form the combined module.
Further, the hot press device further comprises a first leveling roller and a second leveling roller which are oppositely arranged, the first leveling roller and the second leveling roller are respectively abutted to the reflecting plate raw material conveyed by the second discharging device and the light shielding plate raw material conveyed by the third discharging device, and the first leveling roller and the second leveling roller are used for respectively flatly pressing the reflecting plate raw material and the light shielding plate raw material on the light guide plate and the adhesive layer.
Further, the first cutting device comprises a first circular knife die, a second rotating roller and a third rotating roller, wherein the second rotating roller and the third rotating roller are oppositely arranged, the first circular knife die is detachably installed on the second rotating roller, a second material passing gap for the light guide plate raw material to pass through is formed between the second rotating roller and the third rotating roller, and the first circular knife die and the third rotating roller are respectively abutted to the light guide plate and the adhesive layer when the light guide plate raw material passes through the second material passing gap.
Further, the second cutting device comprises a second circular knife mold, and a fourth rotating roller and a fifth rotating roller which are oppositely arranged, so that the second circular knife mold is detachably mounted on the fourth rotating roller, a third material passing gap for the combination module to pass through is formed between the fourth rotating roller and the fifth rotating roller, and the second circular knife mold and the fifth rotating roller are respectively abutted to opposite side surfaces of the combination module when the combination module passes through the third material passing gap.
Further, the first discharging device comprises a first unreeling roller and a third leveling roller, the light guide plate raw material is wound on the first unreeling roller and is conveyed to the third leveling roller, and the third leveling roller is abutted to the side surface of the light guide plate raw material to compress the light guide plate raw material.
Further, the second discharging device comprises a second unreeling roller, and the reflecting plate raw material is wound on the second unreeling roller and is conveyed to the upper part of each light guide plate; the third discharging device comprises a third unreeling roller, and the light shielding plate raw material is wound on the third unreeling roller and is conveyed to the lower part of the adhesive layer.
Further, the backlight module production line further comprises a mechanical arm used for taking out the backlight module which is cut and placing the backlight module in a finished product area, and a second coil stock device used for curling a waste material module formed after the combination module is cut, wherein the mechanical arm and the first coil stock are both arranged at the discharging position of the cutting device.
The invention has the beneficial effects that: when the backlight module production line is used, firstly, the light guide plate raw materials are output to the conveying device through the first discharging device, the conveying device continuously conveys the light guide plate raw materials along a certain direction, then the light guide plate raw materials conveyed on the conveying device are cut through the first cutting device, the light guide layers of the light guide plate raw materials are cut to form a plurality of light guide plates adhered to the adhesive layer, when the cut light guide plate raw materials pass through the first winding device under the conveying of the conveying device, the waste plates adhered to the adhesive layer are rolled up and removed through the first winding device, at the moment, the adhesive layer of the light guide plate raw materials is adhered with a plurality of light guide plates which are arranged at intervals, then, the reflecting plate raw materials are output to the upper part of each light guide plate through the second discharging device, the light guide plate raw materials are output to the lower part of the adhesive layer through the third discharging device, the reflecting plate raw materials and the light guide plate raw materials are respectively connected onto the light guide plate and the adhesive layer through the first cutting device in a hot pressing mode, and finally, the combined module is cut through the second cutting device, and the combined module is correspondingly formed on the area of each light guide plate, and the combined light guide plate and the lower than the light guide plate module is positioned above the light guide plate and the light guide module. Because when the second cutting device cuts the combined module, the light guide plate is fixed relative to the positions of the light shield raw materials and the light shield raw materials, so that the position of the light guide plate of the cut backlight module is accurate relative to the positions of the light shield and the light shield, the consistency of each backlight module is good, the automatic operation is realized in the production process of the whole backlight module, the production efficiency and the yield of the backlight module are improved, the labor cost is greatly saved, and the production cost of the backlight module is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a backlight module production line according to an embodiment of the invention.
Wherein, each reference sign in the figure:
11-first unreeling roller 12-third leveling roller 13-light guide plate raw material
21-second roll 22-third roll 31-second roll
32-reflective plate material 41-third unreeling roller 42-light-shielding plate material
51-second thermo-roll 52-third thermo-roll 53-first levelling roll
54-second leveling roller 61-fourth turning roller 62-fifth turning roller
71-first thermo-compression roller 72-first turning roller 80-mechanical arm
81-second coil device 82-first glue brushing device 83-first oil brushing device
84-second glue brushing device 85-second oil brushing device 86-third oil brushing device
87-first heating and drying device 88-second heating and drying device 89-cooling device
90-first coil stock device.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1, a backlight module production line provided by an embodiment of the invention includes:
the conveying device is used for conveying the light guide plate raw material 13, wherein the light guide plate raw material 13 comprises a light guide layer and an adhesive layer adhered to the surface of the light guide layer;
the first discharging device is used for conveying the light guide plate raw material 13 to the conveying device;
the first cutting device is used for cutting the light guide layer conveyed by the conveying device, so that the light guide layer forms a plurality of light guide plates and waste plates which are adhered to the adhesive layer;
a first rolling device 90 for rolling the scrap plate;
the second discharging device is used for conveying the reflecting plate raw materials 32 to the upper part of each light guide plate;
the third discharging device is used for conveying the light shielding plate raw material 42 to the lower part of the adhesive layer;
and the hot pressing device is used for respectively hot-pressing and connecting the reflecting plate raw material 32 and the light shielding plate raw material 42 on the light guide plate and the adhesive layer to form a combined module.
The second cutting device is used for cutting the combined module and cutting the combined module to form a plurality of backlight modules which comprise the light guide plate, the reflecting plate positioned above the light guide plate and the light shielding plate positioned below the adhesive layer.
Specifically, in the backlight module production line of the embodiment of the invention, when in use, the first discharging device outputs the light guide plate raw material 13 to the conveying device, the conveying device continuously conveys the light guide plate raw material 13 along a certain direction, then the first cutting device cuts the light guide plate raw material 13 conveyed on the conveying device, the light guide layer of the light guide plate raw material 13 is cut to form a plurality of light guide plates adhered to the glue layer, when the cut light guide plate raw material 13 passes through the first coiling device 90 under the conveying of the conveying device, the first coiling device 90 is used for coiling and removing the waste plates adhered to the glue layer, at the moment, the glue layer of the light guide plate raw material 13 is adhered with a plurality of light guide plates arranged at intervals, then the second discharging device outputs the reflecting plate raw material 32 to the upper part of each light guide plate and the lower part of the glue layer, and the third discharging device outputs the reflecting plate raw material 42 to the lower part of the glue layer, and the reflecting plate raw material 32 and the light shielding plate raw material 42 are respectively connected to the light guide plate upper part and the glue layer through the hot pressing device to form a plurality of combinations, and finally the light guide plate and the light guide plate upper parts of the light guide plate cutting modules are positioned above the glue layer and the light guide plate cutting areas of the corresponding to the light guide plate cutting modules. Because the second cutting device cuts the combination module when, the light guide plate is fixed for the position of light screen raw materials 42 and reflector plate raw materials 32, then the light guide plate of the backlight unit that cuts out is accurate for the position of reflector plate and light screen, and the uniformity of every backlight unit is good, and the production process of whole backlight unit realizes automatic operation, has improved backlight unit's production efficiency and yields, also saves the labour cost greatly, has reduced backlight unit and has generated manufacturing cost.
Further, the light guide plate raw material 13 is only cut into the light guide layer in the cutting process, the glue layer is not cut, a plurality of light guide plates and waste plates are obtained after the light guide layer is cut, and the plurality of light guide plates and waste plates are adhered to the glue layer, after the waste plates are curled and cleaned by the first coiling device 90, the plurality of light guide plates sequentially enter the hot pressing device under the traction of the glue layer, and because the positions of the light guide plates on the glue layer are relatively fixed, when the glue layer with the light guide plates, the reflector plate raw material 32 and the light baffle raw material 42 are in hot pressing connection, the positions of the light guide plates relative to the reflector plate raw material 32 and the light baffle raw material 42 are relatively fixed, so that the positions of the light guide plates in the combined module obtained through hot pressing are relatively fixed relative to the positions of the reflector plate raw material 32 and the light baffle raw material 42, the positions of the cut backlight module are accurate, and the consistency of each backlight module is good, the cutting accuracy of the backlight module is improved, and the defective product is reduced.
Further, the first rolling device 90 includes a first rolling roller, and during the rotation of the first rolling roller, the waste plate is separated from the glue layer so as to be wound on the first rolling roller, and meanwhile, the first rolling roller can be used as a transportation device, and the raw material 13 of the light guide plate is driven to move by the curling force on the waste plate.
In this embodiment, referring to fig. 1, the backlight module production line further includes a dot embossing device for embossing dots on the light guiding layer, where the dot embossing device is located at the discharge position of the first discharge device. Specifically, the dot embossing device is mainly used for embossing dots on the light guide layer of the light guide plate raw material 13, so that the cut light guide plate is provided with dots, the light guide plate with the dots can make light uniform, a layer of diffusion film can be omitted from the whole backlight module, and the thickness of the backlight module is reduced.
In this embodiment, referring to fig. 1, the dot embossing apparatus includes a stamper, a first thermo-compression roller 71 and a first rotating roller 72, which are disposed opposite to each other, the stamper is detachably mounted on the first thermo-compression roller 71, a first material passing gap for passing the light guide plate raw material 13 is formed between the first thermo-compression roller 71 and the first rotating roller 72, and the stamper and the first rotating roller 72 are respectively abutted on the light guide layer and the adhesive layer when the light guide plate raw material 13 passes through the first material passing gap. Specifically, when the light guide plate raw material 13 is conveyed to the first material passing gap between the first thermo-compression roller 71 and the second rotating roller 21, the first thermo-compression roller 71 and the second rotating roller 21 are respectively pressed on the light guide layer and the glue layer of the light guide plate raw material 13, and when the first thermo-compression roller 71 and the second rotating roller 21 rotate relatively, the pressing mold installed on the first thermo-compression roller 71 is pressed on the light guide layer and forms dots on the light guide layer, and meanwhile, the rotation process of the first thermo-compression roller 71 and the second rotating roller 21 drives the light guide plate raw material 13 to transport forwards.
Further, the pressing mold is detachably mounted on the first hot pressing roller 71, when different dots need to be pressed, pressing of the different dots can be achieved only by replacing the corresponding pressing mold on the first hot pressing roller 71, and therefore the whole backlight module production line can meet the requirement of diversified dot modes.
Further, the pressing film is a laser stamping die, the laser stamping die is stamped on the surface of the adhesive layer in the rotation process of the first hot pressing roller 71, and the dots obtained by stamping of the laser stamping die are clearer.
In this embodiment, referring to fig. 1, the thermo-compression device includes a second thermo-compression roller 51 and a third thermo-compression roller 52 that are disposed opposite to each other, where the second thermo-compression roller 51 and the third thermo-compression roller 52 are respectively abutted against the reflective plate raw material 32 and the light-shielding plate raw material 42, and thermo-compression connect the reflective plate raw material 32 and the light-shielding plate raw material 42 to the light guide plate and the glue layer, respectively, to form the combined module. Specifically, when the reflective plate raw material 32, the glue layer to which the light guide plate is bonded, and the light shielding plate are conveyed to the fourth passing gap between the first thermo-roller 71 and the second thermo-roller 51, the reflective plate raw material 32 and the light shielding plate raw material 42 are continuously thermo-pressed on the light guide plate and the glue layer, respectively, under the rotary rolling between the second thermo-roller 51 and the third thermo-roller 52 and the heating and cementing action of the second thermo-roller 51 and the third thermo-roller 52, to form a combined module, and the reflective plate raw material 32, the light guide plate, the glue layer, and the light shielding plate raw material 42 in the combined module are also tightly connected together.
In this embodiment, referring to fig. 1, the hot press apparatus further includes a first leveling roller 53 and a second leveling roller that are disposed opposite to each other, where the first leveling roller 53 and the second leveling roller are respectively abutted against the light-shielding plate raw material 42 conveyed by the second discharging device and the light-shielding plate raw material 32 conveyed by the third discharging device, and are used for flatly pressing the light-guiding plate and the glue layer with respect to the light-shielding plate raw material 32 and the light-shielding plate raw material 42. Specifically, when the light-shielding plate raw material 42, the adhesive layer bonded with the light-guiding plate and the reflecting plate raw material 32 are conveyed to the fifth material passing gap between the first leveling roller 53 and the second leveling roller, under the rotary rolling action of the first leveling roller 53 and the second leveling roller, the reflecting plate raw material 32 and the light-shielding plate raw material 42 are respectively pressed on the light-guiding plate and the adhesive layer, and meanwhile, air between the reflecting plate raw material 32 and the light-guiding plate and between the light-shielding plate raw material 42 and the adhesive layer can be eliminated, so that the adhesive distribution between the reflecting plate raw material 32 and the light-guiding plate and between the light-shielding plate raw material 42 and the adhesive layer is more uniform, the adhesive strength between the adhesive layer with the light-guiding plate and the reflecting plate raw material 32 and between the adhesive layer with the light-guiding plate and the light-shielding plate raw material 42 is improved, and uneven thickness distribution of the backlight module is avoided; the preliminary pressfitting of pass through first flattening kun 53 and first flattening kun 53 forms the pressfitting module for relative position is comparatively stable between light guide plate and reflecting plate raw materials 32 and the light emitting plate raw materials, and when the pressfitting module through the hot pressing effect between second hot pressing kun 51 and the third hot pressing kun 52, the position of the light guide plate in the pressfitting module can not remove, and the connection between reflecting plate raw materials 32 and the light guide plate and between light screen raw materials 42 and the glue film is more inseparable simultaneously, makes the light utilization ratio that the second cutting device cut and obtains backlight unit high, thickness and with low costs, and thickness even arrangement can form even hi-lite light.
Further, an included angle exists between the conveying direction of the reflecting plate raw material 32 and the conveying direction of the light guide plate, before the reflecting plate raw material 32 contacts the light guide plate, the side surface of the reflecting plate raw material 32 is abutted against the first leveling roller 53, and after the first leveling roller 53 can flatten the uneven part on the surface of the reflecting plate raw material 32, the reflecting plate raw material 32 is conveyed to the light guide plate along with the rotation of the first leveling roller 53; the contained angle exists between the conveying direction of the light shielding plate raw material 42 and the conveying direction of the adhesive layer, before the light shielding plate raw material 42 contacts with the adhesive layer, the side face of the light shielding plate raw material 42 is abutted on the second leveling roller, and after the second leveling roller can flatten the uneven part of the surface of the light shielding plate, the reflecting plate raw material 32 is conveyed onto the adhesive layer along with the rotation of the first leveling roller 53, so that the surface flatness of the backlight module is ensured.
In this embodiment, referring to fig. 1, the first cutting device includes a first circular knife mold, and a second rotating roller 21 and a third rotating roller 22 that are disposed opposite to each other, where the first circular knife mold is detachably mounted on the second rotating roller 21, a second material passing gap for passing the light guide plate raw material 13 is formed between the second rotating roller 21 and the third rotating roller 22, and the first circular knife mold and the third rotating roller 22 are respectively abutted on the light guide plate and the adhesive layer when the light guide plate raw material 13 passes through the second material passing gap. Specifically, when the light guide plate raw material 13 is conveyed to the second passing gap between the second rotating roller 21 and the third rotating roller 22, the first circular knife mold on the second rotating roller 21 continuously performs rolling extrusion cutting on the light guide layer on the light guide plate raw material 13 along with the rotary rolling action of the second rotating roller 21 and the third rotating roller 22, so as to obtain a plurality of light guide plates and waste plates which are arranged at intervals continuously. The first circular knife die can roll, extrude and cut the light guide layer to obtain the light guide plate, but the first circular knife die can not cut the adhesive layer, so that the continuity between adjacent light guide plates and the consistency of the relative position relationship of the adjacent light guide plates on the adhesive layer are ensured, and the cutting accuracy of the second cutting device is ensured.
Further, the first circular knife mold is detachably mounted on the second rotating roller 21, and the first circular knife mold with a corresponding size can be selected to be mounted on the second rotating roller 21 according to backlight modules with different sizes, so that the backlight module production line provided by the embodiment of the invention can meet the production requirements of various backlight modules.
Further, when the first circular knife mold rotates to cut, the distance between the knife edge of the first circular knife mold and the surface of the second rotating roller 21 is the thickness of the adhesive layer, and in the rotating process of the second rotating roller 21 and the third rotating roller 22, the distance between the knife edge of the first circular knife mold and the surface of the third rotating roller 22 always keeps the gap of the thickness of the adhesive layer, so that the gap prevents the first circular knife mold from cutting the adhesive layer in the cutting process, and the integrity of the adhesive layer is ensured.
In this embodiment, referring to fig. 1, the second cutting device includes a second circular knife mold, and a fourth rotating roller 61 and a fifth rotating roller 62 that are disposed opposite to each other, so that the second circular knife mold is detachably mounted on the fourth rotating roller 61, a third material passing gap through which the combination module passes is formed between the fourth rotating roller 61 and the fifth rotating roller 62, and the second circular knife mold and the fifth rotating roller 62 are respectively abutted against opposite sides of the combination module when the combination module passes through the third material passing gap. Specifically, when the combined module passes through the third material passing gap between the fourth rotating roller 61 and the fifth rotating roller 62, the first circular knife mold on the fourth rotating roller 61 continuously performs rolling extrusion cutting on the combined module along with the rolling action of the fourth rotating roller 61 and the fifth rotating roller 62, so as to obtain a plurality of backlight modules.
Further, the second circular knife mold is detachably mounted on the fourth rotating roller 61, and the corresponding second circular knife mold can be selected to be mounted on the fourth rotating roller 61 according to backlight modules with different sizes, so that the backlight module production line of the embodiment of the invention can meet the production requirements of various backlight modules.
In this embodiment, referring to fig. 1, the first discharging device includes a first unreeling roller 11 and a third leveling roller 12, the light guide plate raw material 13 is wound on the first unreeling roller 11 and conveys the light guide plate raw material 13 to the third leveling roller 12, and the third leveling roller 12 abuts against a side surface of the light guide plate raw material 13 to compress the light guide plate raw material 13. Specifically, the light guide plate raw material 13 is wound on the first unreeling roller 11, the light guide plate raw material 13 is installed on the first unreeling roller 11 in a coiled material form, the light guide plate raw material 13 can be smoothly conveyed out by pulling one end of the light guide plate raw material 13, and the pulled light guide plate raw material 13 is subjected to the compacting and leveling effects of the side surface of the third leveling roller 12, so that the surface of the light guide plate raw material 13 is smooth, and the accuracy of the subsequent net point embossing device embossing of the light guide plate raw material 13 is ensured.
Further, the side surface of the light guide plate raw material 13 is wound on a part of the outer wall surface of the third leveling roller 12, and the third leveling roller 12 rolls and presses the side surface of the light guide plate raw material, so that the light guide plate raw material 13 is leveled, and the conveying direction of the light guide plate raw material 13 can be changed, so that the installation of other components of the backlight module production line is facilitated.
In this embodiment, as shown in fig. 1, the second discharging device includes a second unreeling roller 31, and the reflective plate raw material 32 is wound on the second unreeling roller 31 and is conveyed to the upper portion of each light guide plate; the third discharging device comprises a third unreeling roller 41, and the light shielding plate raw material 42 is wound on the third unreeling roller 41 and is conveyed to the lower portion of the adhesive layer. Specifically, the reflective plate raw material 32 is wound on the second unreeling roller 31, the reflective plate raw material 32 is mounted on the second unreeling roller 31 in a coiled form, and the reflective plate raw material 32 can be smoothly conveyed out by pulling one end of the reflective plate raw material 32, so that the structure is simple and reliable; the light shielding plate raw material 42 is wound on the third unreeling roller 41, the light shielding plate raw material 42 is mounted on the third unreeling roller 41 in a coiled material form, and the light shielding plate raw material 42 can be smoothly conveyed out by pulling one end of the light shielding plate raw material 42.
Further, the backlight module production line further comprises a first glue brushing device 82 and a first oil brushing device 83, the reflecting plate raw material 32 comprises a first bonding surface and a shielding surface which are oppositely arranged, the first bonding surface is bonded on the light guide plate, the reflecting plate raw material 32 extending out of the second discharging device passes through the first glue brushing device 82, the first glue brushing device 82 uniformly coats the first glue on the first bonding surface of the reflecting plate raw material 32, and the first glue is used as an adhesive to tightly bond the reflecting plate raw material 32 on the light guide plate; the reflector plate raw material 32 passes through the first oil brushing device 83 and then enters the hot pressing device, the first oil brushing device 83 uniformly coats the first black oil on the shielding surface of the reflector plate raw material 32, and the manufactured backlight module is manufactured by using the reflector plate raw material 32 coated with the first black oil, so that light rays can be prevented from being emitted from the reflector plate, and the brightness of the backlight module is increased.
Further, the backlight module production line further comprises a second glue brushing device 84, a second oil brushing device 85 and a third oil brushing device 86, the light screen raw material 42 comprises a second bonding surface and a light emitting surface which are oppositely arranged, the second bonding surface is bonded on the glue layer, the light screen raw material 42 extending out of the third discharging device passes through the first glue brushing device 82, the second glue brushing device 84 uniformly coats second glue on the second bonding surface of the light screen raw material 42, and the second glue is used as an adhesive to tightly bond the light screen raw material 42 on the glue layer; the light-shielding plate raw material 42 passes through the second oil brushing device 85 and then passes through the third oil brushing device 86 to finally enter the hot pressing device, the white oil is uniformly coated on the light-emitting surface of the light-shielding plate raw material 42 by the first oil brushing device 83 to form a white oil layer, then the white oil layer is coated with the second black oil by the second oil brushing device 85, and the white oil layer is only coated with the second black oil, so that light can be emitted from a specific light emission position of the backlight module, and the brightness of the light emission position of the backlight module is increased.
Still further, the backlight module production line further includes a first heating and drying device 87, and the reflective plate raw material 32 coated with the first black oil and the first water gel and the light-shielding plate raw material 42 coated with the white oil, the second black oil and the second water gel are heated and dried by the first heating and drying device 87, so that the reflective plate raw material 32, the first black oil and the first water gel are tightly adhered together, and the white oil, the second black oil, the second water gel and the light-shielding plate raw material 42 are also tightly adhered together.
In this embodiment, referring to fig. 1, the backlight module production line further includes a mechanical arm 80 for taking out the backlight module after cutting and placing the backlight module in a finished product area, and a second winding device 81 for winding a waste module formed after cutting the combined module, where the mechanical arm 80 and the first winding are both disposed at a discharge position of the cutting device. Specifically, the mechanical arm 80 takes the cut backlight module to the finished product area, the waste material module is recovered by the second coil device 81, the mechanical arm 80 and the first coil are arranged at the discharging position of the cutting device, the distance of the mechanical arm 80 for taking the backlight module is shorter, and the second coil device 81 is also convenient to recover in time, so that the structure of the whole backlight module production line is more compact.
Further, the second rolling device 81 includes a second rolling roller, during the rotation of the first rolling roller, the waste module is wound on the first rolling roller for recycling, and meanwhile, the second rolling roller can be used as a transportation device, and the rolling force of the second rolling roller to the waste module drives the light guide plate raw material 13, the reflecting plate raw material 32 and the light shielding plate raw material 42 to move.
Further, the backlight module production line further comprises a second heating and drying device 88 and a cooling device 89, the combined module after hot pressing is sequentially processed by the second heating and drying device 88 and the cooling device 89, so that the light guide plate, the reflecting plate raw material 32 and the light shielding plate raw material 42 are further tightly adhered together, and the combined template after the heating and drying and cooling processing is conveyed into a second cutting device for cutting to obtain the backlight module.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The utility model provides a backlight unit production line which characterized in that includes:
the conveying device is used for conveying the light guide plate raw materials, and the light guide plate raw materials comprise a light guide layer and an adhesive layer adhered to the surface of the light guide layer;
the first discharging device is used for conveying the light guide plate raw materials to the conveying device;
the first cutting device is used for cutting the light guide layer conveyed by the conveying device, so that the light guide layer forms a plurality of light guide plates and waste plates which are adhered to the adhesive layer; the light guide plates are arranged at intervals;
a first rolling device for rolling the waste plate;
the second discharging device is used for conveying the reflecting plate raw materials to the upper parts of the light guide plates;
the third discharging device is used for conveying the raw materials of the light shielding plate to the lower part of the adhesive layer;
the hot pressing device is used for respectively connecting the reflecting plate raw material and the shading plate raw material on the light guide plate and the adhesive layer in a hot pressing way to form a combined module;
the second cutting device is used for cutting the combined module and cutting the combined module to form a plurality of backlight modules which comprise the light guide plate, the reflecting plate positioned above the light guide plate and the light shielding plate positioned below the adhesive layer.
2. The backlight module production line according to claim 1, wherein: the backlight module production line further comprises a screen dot embossing device for embossing screen dots on the light guide layer, and the screen dot embossing device is located at the discharging position of the first discharging device.
3. The backlight module production line according to claim 2, wherein: the screen point embossing device comprises a pressing die, a first hot pressing roller and a first rotating roller, wherein the first hot pressing roller and the first rotating roller are oppositely arranged, the pressing die is detachably arranged on the first hot pressing roller, a first material passing gap for the light guide plate raw material to pass through is formed between the first hot pressing roller and the first rotating roller, and the pressing die and the first rotating roller are respectively abutted to the light guide layer and the adhesive layer when the light guide plate raw material passes through the first material passing gap.
4. A backlight module production line according to claim 3, wherein: the hot pressing device comprises a second hot pressing roller and a third hot pressing roller which are oppositely arranged, the second hot pressing roller and the third hot pressing roller are respectively abutted against the reflecting plate raw material and the light shielding plate raw material, and the reflecting plate raw material and the light shielding plate raw material are respectively connected onto the light guide plate and the adhesive layer in a hot pressing mode to form the combined module.
5. The backlight module production line according to claim 4, wherein: the hot press device further comprises a first leveling roller and a second leveling roller which are oppositely arranged, the first leveling roller and the second leveling roller are respectively abutted to the reflecting plate raw material conveyed by the second discharging device and the light shielding plate raw material conveyed by the third discharging device, and the first leveling roller and the second leveling roller are used for respectively flatly pressing the reflecting plate raw material and the light shielding plate raw material on the light guide plate and the adhesive layer.
6. The backlight module production line according to any one of claims 1 to 5, wherein: the first cutting device comprises a first circular knife die, a second rotating roller and a third rotating roller, wherein the second rotating roller and the third rotating roller are oppositely arranged, the first circular knife die is detachably arranged on the second rotating roller, a second material passing gap for the light guide plate raw material to pass through is formed between the second rotating roller and the third rotating roller, and the first circular knife die and the third rotating roller are respectively abutted to the light guide plate and the adhesive layer when the light guide plate raw material passes through the second material passing gap.
7. The backlight module production line according to any one of claims 1 to 5, wherein: the second cutting device comprises a second circular knife die, a fourth rotating roller and a fifth rotating roller which are oppositely arranged, so that the second circular knife die is detachably arranged on the fourth rotating roller, a third material passing gap for the combination module to pass through is formed between the fourth rotating roller and the fifth rotating roller, and the second circular knife die and the fifth rotating roller are respectively abutted to the opposite side surfaces of the combination module when the combination module passes through the third material passing gap.
8. The backlight module production line according to any one of claims 1 to 5, wherein: the first discharging device comprises a first unreeling roller and a third leveling roller, the light guide plate raw material is wound on the first unreeling roller and is conveyed to the position of the third leveling roller, and the third leveling roller is abutted to the side surface of the light guide plate raw material to compress the light guide plate raw material.
9. The backlight module production line according to any one of claims 1 to 5, wherein: the second discharging device comprises a second unreeling roller, and the reflecting plate raw material is wound on the second unreeling roller and is conveyed to the upper part of each light guide plate; the third discharging device comprises a third unreeling roller, and the light shielding plate raw material is wound on the third unreeling roller and is conveyed to the lower part of the adhesive layer.
10. The backlight module production line according to any one of claims 1 to 5, wherein: the backlight module production line further comprises a mechanical arm used for taking out the backlight module which is cut and placing the backlight module in a finished product area and a second coil stock device used for curling a waste material module formed after the combination module is cut, wherein the mechanical arm and the first coil stock are both arranged at the discharging position of the cutting device.
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