WO2020177780A2 - Appareil de production de film de guidage de lumière à prisme composite - Google Patents

Appareil de production de film de guidage de lumière à prisme composite Download PDF

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Publication number
WO2020177780A2
WO2020177780A2 PCT/CN2020/095400 CN2020095400W WO2020177780A2 WO 2020177780 A2 WO2020177780 A2 WO 2020177780A2 CN 2020095400 W CN2020095400 W CN 2020095400W WO 2020177780 A2 WO2020177780 A2 WO 2020177780A2
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WO
WIPO (PCT)
Prior art keywords
light guide
prism
guide film
prism light
rolling
Prior art date
Application number
PCT/CN2020/095400
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English (en)
Chinese (zh)
Other versions
WO2020177780A3 (fr
Inventor
刘勇
李永刚
Original Assignee
南京贝迪电子有限公司
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Filing date
Publication date
Application filed by 南京贝迪电子有限公司 filed Critical 南京贝迪电子有限公司
Priority to JP2020600118U priority Critical patent/JP3231392U/ja
Priority to DE212020000091.3U priority patent/DE212020000091U1/de
Publication of WO2020177780A2 publication Critical patent/WO2020177780A2/fr
Publication of WO2020177780A3 publication Critical patent/WO2020177780A3/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154—Coating solid articles, i.e. non-hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/022—Particular heating or welding methods not otherwise provided for
    • B29C65/028—Particular heating or welding methods not otherwise provided for making use of inherent heat, i.e. the heat for the joining comes from the moulding process of one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7888—Means for handling of moving sheets or webs
    • B29C65/7894—Means for handling of moving sheets or webs of continuously moving sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B29C66/91423—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools using joining tools having different temperature zones or using several joining tools with different temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers

Definitions

  • This application relates to the technical field of thin film production, in particular to a composite prism light guide film production device.
  • the prism light guide film is an important part of the backlight module and is a kind of optical film.
  • a small prism unit is arranged on one side of a transparent material and a coating is arranged on the other side, which has the effect of improving brightness.
  • the prism film has excellent light-gathering performance, it can change the direction of light and greatly improve the front brightness of the backlight module.
  • the front brightness of the backlight module using two orthogonal prism films will increase by more than 100%. Because the brightness of the backlight module is provided by the lamp beads arranged on the back or on both sides or the lamp bar with multiple lamp beads, the same brightness can be achieved. When the prism film is used, the use of lamp beads can be reduced, thereby Energy saving.
  • the prior art prism light guide film production equipment basically uses a single material, generally after injection molding into a common light guide film, then prism attachment and dot design are carried out, and finally the prism light guide film is made.
  • the preparation process is carried out separately.
  • the multiple processes of the prism cannot be formed in one piece; for the more complex composite prism light guide film, the production process and steps are more complicated, which greatly increases the production time and cost of the prism light guide film.
  • the purpose of this application is to provide a composite prism light guide film production device.
  • prisms are directly arranged in the light guide film and dots are designed on both sides of the light guide film to integrally form the composite prism light guide film ,
  • the processing speed is fast, the production efficiency and production cost are significantly reduced.
  • a composite prism light guide film production device including a first feed port, a first melting and stirring zone, a first punch, a second feed port, and a second melting Stirring zone, second punching head, prism discharge device, coating device, rolling shaft group, shaping wheel and finished product collection device;
  • the first feed port and the second feed port are parallel and correspondingly arranged, the first feed port is connected to the first melting and stirring zone through a conveying pipe, and the second feed port is connected to the second through a conveying pipe.
  • the second melting and stirring zone and the first melting and stirring zone have the same structure, and both include a stirring box, a stirring drive device respectively arranged in the stirring box, and a stirring blade spindle connected to the output end of the stirring drive device, and a connection The mixing blade on the main shaft of the mixing blade;
  • the bottom surface of the mixing box is provided with through holes, the through hole on the bottom of the mixing box in the first melting and stirring zone is connected to the first punch, and the through hole on the bottom of the mixing box in the second melting and stirring zone is connected to The second punching head; the first punching head and the second punching head are respectively used for supplying the melted and stirred raw materials to the rolling shaft group at a slow speed;
  • the prism unwinding device is arranged above the first feed port and the second feed port, and includes a prism roll material and a prism roll material mounting shaft, and the prism roll material comes from the first feed port and the second feed port Between extending downward;
  • the coating device includes two, respectively corresponding to the two sides of the prism roll, used for coating glue on the side of the prism roll;
  • the rolling shaft group is arranged below the first feeding port and the second feeding port, and includes two cylindrical rolling shafts corresponding in parallel and abutting against each other and a rolling shaft group driving device that drives the cylindrical rolling shafts to rotate respectively;
  • the two cylindrical rolling shafts are respectively parallel to the prism roll material mounting shaft, and the extended end of the prism roll material located below corresponds to the contact line where the two cylindrical rolling shafts abut against each other;
  • the rolling shaft group driving device Drive the cylindrical rolling shaft to roll, drive the raw material at the exit of the first punch and the raw material at the exit of the second punch to be extruded from the two sides of the prism roll material and fit the prism roll material coated with glue on both sides to make Into a composite prism light guide film;
  • the shaping wheel is arranged on the side of the rolling shaft group, and the axis of the shaping wheel is parallel to the cylindrical rolling axis, and is used to remove the thermal stress of the composite prism light guide film formed by the rolling shaft; the finished product collection device is arranged in the shaping The wheel is away from the side of the rolling shaft group, and is used to collect the composite prism light guide film after the shaping wheel.
  • the composite prism light guide film production device of the present application directly prepares an integrated composite prism light guide film through the cooperation of a prism discharging device and a rolling shaft group, which has a simple structure, convenient operation, saves production procedures, and significantly reduces production costs.
  • the two cylindrical rolling shafts in the rolling shaft group are both set as metal rolling wheels, and the surface of the metal rolling wheel is provided with a transfer structure for arranging dots of the prism light guide film.
  • the cylindrical rolling shaft in the rolling shaft group close to the prism discharge device is a rubber elastic wheel
  • the cylindrical rolling shaft in the rolling shaft group far from the prism discharge device is a metal rolling wheel
  • the surface of the metal rolling wheel is The ring is used to arrange the transfer structure of the dots of the prism light guide film; the transfer structure on the surface of the metal rolling wheel allows the surface of the prism light guide film to form a variety of dot structures, increasing the optical characteristics of the prism light guide film product.
  • a first heating device is arranged inside the metal rolling wheel along the axial direction, and the first heating device is beneficial for the raw materials extruded from the first punch and the second punch to be more easily squeezed and rolled into the prism. Attach it into a composite light guide film.
  • the shaping wheel is a metal wheel with a smooth surface, and a second heating device is arranged inside the metal wheel along the axial direction; by heating and the first heating device on the rolling shaft group, a production environment with alternating cold and heat is formed, eliminating The internal stress of the prism light guide film output by the rolling shaft group and the warpage of the product are improved.
  • a tension control device is provided between the prism discharging device and the coating device, and the tension control device is used to adjust the surface tension of the prism roll conveyed between the prism discharging device and the rolling shaft group.
  • the prism light guide film production equipment further includes a control unit, which is electrically connected to the stirring drive device and the rolling shaft group drive device.
  • the raw materials entered by the first feed port and the second feed port include PC, PMMA, PS and MS.
  • the composite prism light guide film production device disclosed in the present application by adjusting the forming process of the prism light guide film production, directly attaches prisms and sets the dots on the surface of the light guide film, and integrally forms the composite prism light guide film.
  • the technical solution is reasonable in design and structure Simple; this application sets the prism roll material between the two punch heads, and uses the rolling shaft group to attach the raw material at the exit of the two punch heads to the prism roll material from both sides, and then transfer the surface of the rolling shaft group
  • the structure is designed to print dots on the side of the composite prism light guide film away from the prism roll material, and simultaneously achieve different technical effects on the composite prism light guide film product, which greatly improves the light-gathering performance of the composite prism light guide film product.
  • the present application uses a rolling shaft group with two cylindrical rolling shafts to extrude the raw materials during the shaping stage of the light guide film, and the metal shaping wheel is used to shape the shaped composite prism light guide film. While avoiding the film warping caused by a single cylindrical roller while reducing the internal stress of the film, the composite prism light guide film produced is of high quality.
  • Fig. 1 is a structural diagram of a composite prism light guide film production device of this application.
  • 1-first feed port 1-first feed port, 1-1-second feed port, 2-conveying pipeline, 3-first melting and stirring zone, 3-1-2 second melting and stirring zone, 4-first punch, 4 -1-Second punch head, 5-prism discharging device, 6-coating device, 7-metal rolling wheel, 8-shaping wheel, 9-finished product collection device.
  • composite prism light guide film is mainly made of a single material. First, it is injection molded into a common light guide film, then prism attachment and dot design are performed, and finally a composite prism light guide film is made, so that the composite prism light guide film.
  • This application aims to propose a new composite prism light guide film production device, which integrally forms a composite prism light guide film with fast processing speed, high production efficiency, and products Good quality.
  • a composite prism light guide film production device includes a first feed port 1, a first melting and stirring zone 3, a first punch 4, a second feed port 1-1, a second melting Stirring zone 3-1, second punching head 4-1, prism discharge device 5, coating device 6, rolling shaft group, shaping wheel 8 and finished product collection device 9; the first feed port 1 and the second The feed ports 1-1 are parallel and correspondingly arranged, the first feed port 1 is connected to the first melting and stirring zone 3 through a conveying pipe 2, and the second feed port 1-1 is connected to the second through a conveying pipe 2.
  • Melting and stirring zone 3-1; the second melting and stirring zone 3-1 and the first melting and stirring zone 3 have the same structure, and both include a stirring box, a stirring drive device respectively arranged in the stirring box, and an output connected to the stirring drive device
  • the mixing blade main shaft at the end and the mixing blade connected to the mixing blade main shaft;
  • the first feed port 1 is connected to the mixing box of the first melting and stirring zone 3, and
  • the second feed port 1-1 is connected to the second melting and stirring zone
  • the mixing tanks in the zone 3-1 are respectively used for conveying raw materials into the mixing tank;
  • the raw materials entering the first feed port 1 and the second feed port 1-1 include PC, PMMA, PS and MS.
  • a through hole is provided on the bottom surface of the mixing box body, the through hole on the bottom surface of the mixing box body of the first melting and stirring zone 3 is connected to the first punch 4, and the bottom surface of the mixing box body of the second melting and stirring zone 3-1
  • the through hole of is connected to the second punch head 4-1; the first punch head 4 and the second punch head 4-1 are respectively used to feed the molten and stirred raw materials to the rolling shaft group at a slow speed;
  • the prism discharging device 5 is arranged above the first feed port 1 and the second feed port 1-1, and includes a prism roll material and a prism roll material mounting shaft.
  • the prism roll material flows from the first feed port 1 and The second feeding port 1-1 extends downward;
  • the coating device 6 includes two, respectively corresponding to the two sides of the prism roll material, used to coat glue on the side of the prism roll material;
  • the rolling shaft The group is arranged below the first feed port 1 and the second feed port 1-1, and includes two cylindrical rolling shafts corresponding in parallel and abutting against each other and a rolling shaft group driving device that drives the cylindrical rolling shafts to rotate respectively;
  • the two cylindrical rolling shafts are respectively parallel to the prism roll material mounting shaft, and the extended end of the prism roll material located below corresponds to the contact line where the two cylindrical rolling shafts abut against each other.
  • the rolling shaft group driving device drives the cylindrical rolling shaft to roll, and drives the raw material at the outlet of the first punch 4 and the raw material at the outlet of the second punch 4-1 to squeeze and fit the two sides of the prism roll material respectively
  • the prism roll material coated with glue is extruded into a composite prism light guide film.
  • the shaping wheel 8 is arranged on the side of the rolling axis group, and the axis of the shaping wheel 8 is parallel to the cylindrical rolling axis, and is used to remove the internal stress of the composite prism light guide film composed of the rolling axis, that is, the thermal stress;
  • the finished product collection device 9 is arranged on the side of the shaping wheel 8 away from the rolling shaft group, and is used to collect the composite prism light guide film after the internal stress is removed by the shaping wheel 8.
  • the rolling shaft set is used to attach the prism roll material between the ordinary guide dies for extrusion molding and design the dot structure on the side of the guide mold away from the prism roll material. Therefore, as shown in the drawings
  • the two cylindrical rolling shafts in the rolling shaft group are both set as a metal rolling wheel 7, and the metal rolling wheel 7 is provided with a transfer structure for arranging dots on the prism light guide film on the surface circumference of the metal rolling wheel 7;
  • the structure allows the surface of the composite prism light guide film to form multiple forms of dot structures, such as uniform point-shaped convex structures or wave-shaped convex structures, which are used to increase the optical characteristics of the composite prism light guide film products.
  • the model of the prism roll material can also be adjusted to adapt to each dot structure.
  • the metal rolling wheel 7 is provided with a first heating device.
  • the shaping wheel 8 is also set as a metal wheel with a smooth surface, and a second heating device is arranged inside the metal wheel.
  • the second heating device and the first heating device can be set to have a temperature difference to eliminate the composite prism by heating or alternating cold and heat.
  • the internal stress of the light guide film and the improvement of the warpage phenomenon of the product eliminate the unevenness of the light guide film caused by the uneven force of the light guide film during the cutting process or the thermal expansion and contraction during the transportation process.
  • the first heating device and the second heating device are both set as resistance heating devices, and the resistance heating method is safer, more reliable and convenient to control than the oil heating method.
  • a tension control device is provided between the prism discharging device 5 and the coating device 6.
  • the tension control device is used to adjust the surface tension of the prism roll conveyed between the prism discharging device 5 and the rolling shaft group, such as electromagnetic Tension adjustment device, spring tension adjustment device, and tension sensor.
  • the composite prism light guide film production device further includes a control unit that is electrically connected to the stirring drive device and the rolling shaft group drive device; in the specific implementation process, the control unit should also It is electrically connected to the first heating device and the second heating device to achieve the effect of heating and temperature control.
  • the composite prism light guide film production device disclosed in the present application adopts two conflicting metal rolling wheels 7 with a dot transfer structure at the outlet of the first punch 4 and the raw material at the outlet of the second punch 4-1 The sides far away from each other are pressed separately, so that the raw materials are attached to the two sides of the prism roll material coated with glue from both sides to form a composite prism light guide film.
  • the two metal rolling wheels 7 with dot transfer structure are synchronized on the composite prism guide
  • the dot structure is transferred on both sides of the light film away from the prism roll material to realize the integrated molding of the composite prism light guide film; in addition, a metal shaping wheel 8 is used to remove the internal stress and curling of the molded composite prism light guide film
  • the device of this application has a reasonable design, a simple structure, and a variety of raw materials are used.
  • the light-gathering performance of the extruded composite prism light guide film product is greatly improved, the product quality is high, the processing speed is fast, the production efficiency is high, and the production cost is significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention concerne un appareil de production de film de guidage de lumière à prisme composite, se rapportant au domaine technique de la production de film mince. Une bande de prisme est disposée entre deux poinçons ; un ensemble d'arbres de roulage est utilisé pour faire adhérer la matière première délivrée par les deux poinçons à la bande de prisme séparément de deux côtés ; une structure d'impression par transfert sur la surface de l'ensemble d'arbres de roulage est utilisée pour presser des points désignés sur le film de guidage de lumière à prisme composite du côté opposé à la bande de prisme. La structure est simple et le rendement de production est élevé. Une bande de prisme est directement collée à la surface d'un film de guidage de lumière et une structure de points est disposée sur cette dernière, formant ainsi un film de guidage de lumière à prisme composite d'une seule pièce, améliorant ainsi sensiblement la performance de concentration optique du produit de film de guidage de lumière à prisme. Un rouleau de formage métallique intervient dans le façonnage du film de guidage de lumière à prisme composite moulé. La contrainte dans le film est éliminée, et le gauchissement provoqué par l'arbre de roulage cylindrique singulier est évité, améliorant la qualité du produit de film de guidage de lumière à prisme composite produit.
PCT/CN2020/095400 2019-09-16 2020-06-10 Appareil de production de film de guidage de lumière à prisme composite WO2020177780A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020600118U JP3231392U (ja) 2019-09-16 2020-06-10 複合プリズム導光フィルムの製造装置
DE212020000091.3U DE212020000091U1 (de) 2019-09-16 2020-06-10 Herstellungsvorrichtung für einen Verbundprismenlichtleiterfilm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201921530351.8 2019-09-16
CN201921530351.8U CN211000058U (zh) 2019-09-16 2019-09-16 一种复合棱镜导光膜生产装置

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WO2020177780A2 true WO2020177780A2 (fr) 2020-09-10
WO2020177780A3 WO2020177780A3 (fr) 2020-10-29

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JP (1) JP3231392U (fr)
CN (1) CN211000058U (fr)
DE (1) DE212020000091U1 (fr)
WO (1) WO2020177780A2 (fr)

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JP2000015712A (ja) * 1998-07-07 2000-01-18 Asahi Chem Ind Co Ltd 採光用複合フレネルプリズム板及びその製造方法
US20040005451A1 (en) * 1999-08-03 2004-01-08 Minnesota Mining And Manufacturing Company Diffuse reflective articles
CN101393274B (zh) * 2008-10-17 2012-08-15 长兴化学工业股份有限公司 复合光学膜
CN102798909A (zh) * 2011-05-24 2012-11-28 康佳集团股份有限公司 一种光学膜片及其制造方法
KR20130110897A (ko) * 2012-03-30 2013-10-10 코오롱인더스트리 주식회사 폴리에스테르 필름 및 이의 제조방법
CN104122618A (zh) * 2013-04-29 2014-10-29 鸿富锦精密工业（深圳）有限公司 复合导光板及其制作方法
CN103935056B (zh) * 2014-04-28 2016-08-24 田武学 一种挤出法生产微棱镜结构反光膜的设备和方法
CN106125174A (zh) * 2016-08-08 2016-11-16 福建三昊科技有限公司 反光膜表面层、反光膜及其制造工艺
CN108973175A (zh) * 2018-06-22 2018-12-11 合肥泰沃达智能装备有限公司 一种复合导光板基板加工设备
CN108688121A (zh) * 2018-06-22 2018-10-23 合肥泰沃达智能装备有限公司 一种复合导光板基板热挤压成型设备及其加工方法
CN108790226A (zh) * 2018-06-22 2018-11-13 合肥泰沃达智能装备有限公司 一种多层复合导光板加工用基板
CN208558362U (zh) * 2018-06-22 2019-03-01 合肥泰沃达智能装备有限公司 一种复合导光板基板加工设备

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WO2020177780A3 (fr) 2020-10-29
JP3231392U (ja) 2021-04-01
CN211000058U (zh) 2020-07-14
DE212020000091U1 (de) 2020-09-14

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