WO2017185591A1 - 一种用于两对边为曲边的3d玻璃的贴膜装置及贴膜方法 - Google Patents

一种用于两对边为曲边的3d玻璃的贴膜装置及贴膜方法 Download PDF

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Publication number
WO2017185591A1
WO2017185591A1 PCT/CN2016/099357 CN2016099357W WO2017185591A1 WO 2017185591 A1 WO2017185591 A1 WO 2017185591A1 CN 2016099357 W CN2016099357 W CN 2016099357W WO 2017185591 A1 WO2017185591 A1 WO 2017185591A1
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WIPO (PCT)
Prior art keywords
film
glass
roller
upper base
base
Prior art date
Application number
PCT/CN2016/099357
Other languages
English (en)
French (fr)
Inventor
周群飞
饶桥兵
周畅
Original Assignee
蓝思科技（长沙）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201610277657.1A external-priority patent/CN107323726B/zh
Priority claimed from CN201620381610.5U external-priority patent/CN205602194U/zh
Application filed by 蓝思科技（长沙）有限公司 filed Critical 蓝思科技（长沙）有限公司
Priority to JP2019506768A priority Critical patent/JP6750095B2/ja
Priority to US16/095,378 priority patent/US10807317B2/en
Priority to KR1020187030209A priority patent/KR102190644B1/ko
Publication of WO2017185591A1 publication Critical patent/WO2017185591A1/zh

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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
    • 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
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7835—Positioning the parts to be joined, e.g. aligning, indexing or centring by using stops
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0004—Component parts, details or accessories; Auxiliary operations
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0073—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor of non-flat surfaces, e.g. curved, profiled
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • B29C63/024—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material the sheet or web-like material being supported by a moving carriage
    • 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
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7844—Holding or clamping means for handling purposes cooperating with specially formed features of at least one of the parts to be joined, e.g. cooperating with holes or ribs of at least 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/746—Joining plastics material to non-plastics material to inorganic materials not provided for in groups B29C66/742 - B29C66/744
    • B29C66/7465—Glass
    • 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
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • 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
    • 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
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B33/00—Packaging articles by applying removable, e.g. strippable, coatings
    • B65B33/02—Packaging small articles, e.g. spare parts for machines or engines
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0004—Component parts, details or accessories; Auxiliary operations
    • B29C2063/0008—Registering, centering the lining material on the substrate
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0047—Preventing air-inclusions
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0095—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using a provisional carrier
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3431—Telephones, Earphones
    • B29L2031/3437—Cellular phones
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3475—Displays, monitors, TV-sets, computer screens
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays

Definitions

  • the invention relates to the technical field of film bonding, in particular to a film coating device and a film coating method for 3D glass with two sides being curved.
  • the curved glass film on both sides of the curved surface refers to a method in which a decorative film (generally a film film) having a texture and a color is rolled by a roller to bond the film to the concave surface of the curved glass on both sides.
  • a decorative film generally a film film
  • the process of attaching a decorative film to a protective glass is mainly applied to a mobile phone panel. Because the diaphragm can be more easily transferred to the texture with respect to the glass, and the plurality of sheets can be printed at one time during the silk screen printing, the production efficiency is greatly improved compared with the single screen printing glass. In addition, due to the structural particularity of the curved glass on both sides, the silk screen pattern on the screen is inconvenient, and the length and width dimensions and positional dimensions of the window area obtained by the silk screen cannot be ensured accurately. These shortcomings can be solved by first printing the pattern on the diaphragm and then attaching the membrane to the white glass. This ensures good product accuracy and high economical efficiency.
  • the rolling direction of the roller in the filming device may be parallel to the long side or the short side of the glass. Due to the structural speciality of the curved glass on both sides, if the original flat glass is used, the bonding mechanism will interfere with the lower base and there will be defects on the glass sheet due to the uneven pressure of the roller, wherein the pressure is small. The positional decorative film will not be tightly attached to the glass, and the pressure decorative film will be too tightly contacted with the glass to cause the film to be crushed. Therefore, there is a need in the art to develop a new filming device and filming method for two pairs of 3D glasses with curved edges.
  • Patent application CN201510351281.X provides an automatic film coating device, including a fixture mechanism, a turnover mechanism, a rubber roller mechanism, a positioning mechanism, a tear film mechanism and a platform.
  • the glass screen is placed on the fixture mechanism, and the fixture mechanism is mounted on the flip shaft, and is turned over.
  • the mechanism is fixed on the machine tool; the platform is arranged under the turning mechanism, the soft film is fixed on the upper end of the platform, and the soft film bonding start end protrudes from the side end of the platform; the positioning mechanism is arranged on one side of the platform, and is located in the soft film.
  • the same side of the starting end includes an X-direction positioning member for the soft film bonding start end, a positioning member translation mechanism, and a second horizontal displacement of the driving positioning member
  • the driver; the rubber roller mechanism is located below the bonding start end of the soft film.
  • the glass screen of the patent application is disposed on the flip shaft, the soft film is disposed under the flip shaft and the glass screen, and the protective film is automatically attached while the film is being peeled.
  • the device is not suitable for the two pairs of sides. 3D glass film on the side. Therefore, there is still a need in the art for a high precision, high efficiency filming apparatus and filming method for 3D glass with two sides being curved.
  • the invention provides a filming device for 3D glass with two sides being curved, the filming device comprising an upper base for fixing the film, a lower base for fixing the 3D glass, a roller structure, and the upper a rotating cylinder for connecting the upper base separately, a lifting cylinder for synchronously moving up and down the upper base, the rotating cylinder and the roller structure and applying pressure to the pressing of the glass and the film by the roller structure, the roller structure being included
  • the roller and the upper roller are used for rotating the upper base such that the relative position between the film and the roller structure fixed on the upper base is changed and fixed; and the axial direction of the roller and the roller are both fixed and fixed.
  • the lengths of the two curved sides of the 3D glass on the lower base are the same, so that the roller first rolls a curved edge of the 3D glass, then rolls the flat portion of the 3D glass, and finally rolls the other curved edge of the 3D glass.
  • the pressure roller includes a first pressure roller and a second pressure roller, and the first pressure roller and the second pressure roller are both located obliquely above the roller.
  • the first pressure roller and the second pressure roller have the same diameter and are all stainless steel pressure rollers
  • the roller is a silica gel roller whose inner core is stainless steel
  • the film membrane is a PET film.
  • the rotary cylinder, the lift cylinder, and the drive components that drive the lower base to move linearly in the horizontal plane are all connected to the controller.
  • the set height of the preceding first pressure roller in the roller structure is lower than the set height of the second second pressure roller.
  • the apparatus further includes two sets of horizontal cylinders and stops for accurately positioning the 3D glass on the lower base, wherein one set of horizontal cylinders and stops are respectively disposed in the longitudinal direction of the 3D glass. On the side, another set of horizontal cylinders and stops are respectively disposed on both sides in the width direction of the 3D glass.
  • the radius of the outer surface of the roller is less than or equal to the radius of the R angle within the 3D glass.
  • the invention also provides a film coating method for 3D glass with two sides being curved, comprising the following steps:
  • Step A placing the two sides of the 3D glass with the curved side facing up into the cavity of the lower base, and accurately positioning the glass, fixing the glass by vacuum adsorption; and positioning the film on the upper base, the film Part of the area of the film is exposed to the upper base, the film is fixed by vacuum adsorption, and the release film on the film is removed;
  • Step B rotating the cylinder to rotate the upper base and the film, so that the portion of the film that exposes the upper base is rotated below the roller, and the film is at an angle to the horizontal plane by rotation;
  • Step C the lower base fixed with the glass piece moves linearly in the front-rear direction of the horizontal plane to the bonding starting position
  • Step D the lifting cylinder drives the upper base, the rotating cylinder and the roller structure to move downward to the fitting starting position, so that the film contacts the glass, and the roller presses the film and the glass;
  • Step E After the lifting cylinder is lowered into position, the lower base starts to move linearly in the front-rear direction of the horizontal plane, the roller keeps the pressure on the film, and the movement of the lower base drives the roller to rotate, so that the film is tightly pressed with the glass; During the process, the vacuum is unloaded so that the upper base and the film are completely separated from each other and the upper base is rotated by the rotating cylinder so that the upper and lower bases do not interfere and collide with each other;
  • Step F After the bonding is completed, the lower base unloads the vacuum, and the finished product is taken out from the lower base.
  • the finished product adhered in step F is put into the extraction tray and accumulated to a certain amount, and then sent to the front oil-proof film of the glass-plated front surface, and then defoamed by a high-pressure defoaming machine, and the defoaming pressure is, for example, 0.65 MPa.
  • the defoaming temperature is, for example, 65 °C.
  • step E the filming process is divided into four time periods, wherein the first segment is the first curved film of the glass, and the second segment is the planar portion of the glass film and the film is filmed at this time. Adsorbed on the upper base, the third section is a flat portion of the glass, and at this time, the film is separated from the upper base and the upper base starts to rotate, and the fourth section is the second curved side of the glass.
  • the lower base moves at a speed of 1 to 10 mm/s, preferably 2 to 8 mm/s; and the filming process of the second and third segments
  • the middle and lower bases are moved at a speed of 20 to 800 mm/s, preferably 50 to 200 mm/s.
  • the film pressure is maintained at a gauge pressure of 0.05 to 0.4 MPa.
  • the method comprises applying a film using a filming device as described above.
  • the two sets of horizontal cylinders and stops are used to accurately position the 3D glass in step A.
  • the invention combines the manner of “separating the upper base and the roller structure by the rotary cylinder separately” and “the upper base and the roller structure of the lifting cylinder", combined with the manner of "separating the film sheet from the upper base completely when the plane of the curved glass is rolled",
  • the film sticking device of the invention can ensure the film is under the roller and the initial angle between the film and the water plane, and can ensure the non-interference between the upper and lower bases, and can ensure that the roller structure provides a smooth fit for the glass and the film. pressure.
  • the device provided by the invention has the advantages of simple structure, easy acquisition of components, convenient production and good film feeding effect.
  • the invention adopts a roller structure with a roller and a rolling roller, which is different from the prior art in that only one roller is used, so that the roller in the invention is not easily deformed and the roller structure can provide a smooth connection between the 3D glass and the film.
  • the bonding pressure makes the film and glass fit to achieve the desired effect.
  • the invention adopts the preliminary positioning of the cavity and the precise positioning of the horizontal cylinder and the baffle to the 3D glass, so that the positioning of the 3D glass of the invention is more accurate, the fitting is more precise, and the yield of the film is high.
  • the method provided by the invention is very suitable for the 3D glass film with two sides being curved, which is convenient to operate, has high film precision and high bonding efficiency.
  • FIG. 1(a) and 1(b) are schematic views showing the structure of a film sticking device of the present invention.
  • FIG. 2 is a schematic structural view of a 3D glass, wherein FIG. 2a is a front view thereof, and FIG. 2b is a plan view thereof;
  • Figure 3 is a schematic structural view of a film film, wherein Figure 3a is a front view thereof, and Figure 3b is a side view thereof;
  • FIG. 4 is a schematic structural view of a lower base of the film coating device
  • Figure 5 is a schematic structural view of the upper base and the rotary cylinder of the film sticking device
  • Figure 6 is a schematic view of the upper base and the film of the film
  • FIG. 7 is a schematic structural view of a roller structure of a film sticking device
  • Fig. 8 is a schematic structural view of a lifting cylinder of the film coating apparatus.
  • filming device 11, upper base, 12, lower base, 13, roller structure, 131, roller, 132, pressure roller, 132a, first pressure roller, 132b, second pressure roller, 14, rotary cylinder 15, lifting cylinder, 2, 3D glass, 21, 3D glass inside the R angle, 3, film film.
  • the film sticking device 1 includes an upper base 11 for fixing the film film 3, a lower base 12 for fixing the 3D glass 2, and a roller structure 13 for A rotary cylinder 14 for rotating the upper base, and a lift cylinder 15 for moving the upper base, the rotary cylinder and the roller structure up and down and causing the roller structure to apply pressure to the glass and the film.
  • the roller, the rotary cylinder and the upper base are separately mounted components, and they can all be fixed to the support plate driven by the upper and lower cylinders.
  • FIGS. 2 and 3 are schematic structural views of a 3D glass and a film film, respectively, which shows that the 3D glass is a pair of sides (the two long sides of the glass) are curved 3D glass, and the film is a front shape and
  • the 3D glass is basically the same planar film.
  • the total height of the glass is less than or equal to 4 mm
  • the thickness of the glass sheet is generally 0.15 to 0.8 mm, such as 0.4 mm or 0.55 mm
  • the radius of the R angle in the 3D glass is greater than or equal to 4.5 mm
  • the total thickness of the film is similar to the thickness of the glass sheet.
  • the decorative film has three layers, the first layer is a release film, the second layer is a PET film, the third layer is a protective film, and the second layer of the PET film is in contact with the release film with an OCA.
  • the glue is used to adhere to the concave surface of the 3D glass, and the other side of the second PET film is screen printed with ink, and the protective film is used to protect the ink on the PET film.
  • the 3D glass with two sides on the side as shown in the figure can be generally used for the front cover or the back cover of the mobile phone. When the 3D glass is used as the front cover of the mobile phone, the border area on the decorative film is screen printed with ink.
  • the decorative film is entirely screen printed with ink.
  • the 3D glass may have a curved side in the longitudinal direction and a straight side in the width direction (as shown in the drawing), or a curved side in the width direction and a straight side in the longitudinal direction, which is not in the present invention. Restricted.
  • FIG. 4 is a schematic structural view of a lower base of the film coating device.
  • the long side and the short side direction of the lower base have automatic alignment cylinders, and the lower base is divided into two pieces, the large one has an air suction hole, the short side positioning block and the positioning cylinder, and the small one passes the long side.
  • the positioning cylinder of the direction mainly plays the role of positioning in the longitudinal direction.
  • the transmission mechanism of the lower base sets the specific fitting speed by setting the speed of different sections.
  • the present invention employs a cavity to substantially position the 3D glass and then uses two sets of horizontal cylinders and stops to accurately position it.
  • the flat glass is placed in the cavity of the lower base, because the size of the cavity must be larger than the upper limit of the glass size, and the unilateral side needs to leave a margin of 0.02 mm, such as a single side length 50mm glass with a standard tolerance of 0.005mm, the cavity size is 50.025mm, which leads to the cavity is not accurate enough to position the glass.
  • the cavity is first used for 3D glass.
  • the basic positioning is precisely positioned by a two-cylinder L-type (including a straight edge and a curved edge) positioning method, wherein the cylinder and the stopper can be fixedly disposed on the base of the device.
  • FIG. 5 is a schematic view showing the structure of the upper base and the rotary cylinder of the film coating apparatus.
  • the upper base includes a vacuum suction hole, and the upper base has an L-shaped positioning edge, and the vacuum suction hole absorbs the film through an external vacuum source, and the film is positioned on the L-shaped positioning edge
  • FIG. 6 is The upper base and the film of the film are drawn together.
  • the upper base is fixed on the support plate, and the other end of the support plate is connected with a rotary cylinder, and the rotary cylinder drives the entire upper base to rotate by the rotation of the cylinder.
  • the rotary cylinder has an angle limit mechanism, which can be adjusted by adjusting the limit mechanism. The angle at which the base is rotated.
  • Fig. 7 is a schematic structural view of a roller structure of a film sticking device.
  • the roller structure is fixed on a support plate, and the roller structure comprises two stainless steel pressure rollers and one silica gel roller arranged in parallel.
  • the two stainless steel press rolls ensure that the entire silicone roller is evenly stressed during rolling, and the silicone roller has a diameter of 8 mm.
  • the inventors of the present invention have found that the roller structure is formed by using two rolling rolls parallel to the roller and the roller, and the positional relationship of the two rolling rolls follows a certain principle, and the roller structure exerts the most uniform rolling pressure on the bonding. The rolling effect is best. Specifically, under the action of friction, the two pressure rollers also rotate as the roller rotates.
  • the lower silica gel roller (stainless steel core diameter 6 mm, silica gel layer thickness 1 mm, and thus the silicone roller radius of 4 mm) is used to provide direct pressure to the film, while the upper two stainless steel cylindrical rollers (diameter 10mm) is used to ensure that the silicone roller does not deform and the pressure is even, which ultimately makes the film and glass fit ideally.
  • Fig. 8 is a schematic structural view of a lifting cylinder of the film coating apparatus.
  • the main function of the lifting cylinder is to raise and lower the upper base and roller structure and to maintain the pressure exerted by the roller when the film is attached to the glass; the roller pressure can be adjusted, for example, between 0.05 and 0.4 MPa.
  • the filming step in this embodiment includes: first positioning the film on the upper base, and the upper base carrying the film can be rotated in the vertical direction under the driving of the rotating cylinder, as shown in the figure, the two long sides of the glass are curved edges, and When the wide side is a straight edge, the width of the film is slightly larger than the width of the upper base and partially protrudes from the outer base (such as a width of about 10 mm), the length of the film is smaller than the length of the upper base so that the film is accurately positioned on the upper base, the film
  • the positioning method on the upper base is the same as the prior art. After the film is positioned, the film is fixed by vacuum adsorption, and then the release film on the film is peeled off by the tear film tape.
  • the 3D glass is positioned on the lower base using the cavity and horizontal cylinder of the lower base, and the glass is fixed by vacuum suction. Rotating the cylinder rotates the upper base to an angle of 15 to 30° between the film and the horizontal plane (or the plane of the 3D glass), and the exposed one rotates below the roller. After that, first move the lower base horizontally back and forth to the rolling start position, in a specific implementation. In the mode, the lower base is moved from the side away from the operator to the rolling start position near the operator side by the lead screw, and then the upper base and the roller are moved downward by the lifting cylinder, so that the upper base and the roller It is also moved down to the rolling start position, at which point the film is in contact with the glass.
  • the roller presses the film at the bonding start position of the glass, and the whole film is still vacuum-fixed and fixed on the upper base, and the film between the film and the horizontal plane is still at an angle of 15 to 30°.
  • pressure is applied to the roller to press the film and the glass.
  • the roller rolls and the roller does not exert a spontaneous rotational force.
  • the lower base moves from a side close to the operator to a side away from the operator under the action of the screw drive during the fitting process, and the first step is to fit away from the operator during the fitting process.
  • the glass curved edge finally fits close to the operator's glass curved edge.
  • the force applied to the roller during the rolling process is kept uniform, but the rolling speed is slow when the side is rolled, and the rolling speed is fast when the side is straight.
  • the rolling process is divided into four sections, rolling the first curved edge ⁇ rolling plane (the film is attached to the upper base) ⁇ rolling plane (the film is separated from the upper base and the upper base is rotated) ⁇ rolling the second curved edge,
  • the speed at which the curved edge is rolled (the moving speed of the lower base in the front-rear direction in the horizontal plane) is 5 mm/s, and the speed of the rolling plane is 100 mm/s.
  • the rolling plane needs to be divided into two sections because the upper base should be rotated in time during the rolling plane to avoid interference and collision between the upper base and the lower base when the second curved side is rolled. That is to say, in the present invention, it is necessary to separate the film sheet and the upper base in time in the process of rolling the plane to ensure that the product obtained by the bonding has no air bubbles and no interference between the upper and lower bases. Specifically, in the case of ensuring that the upper and lower bases do not interfere, the time between the film and the upper base during the bonding process is as late as possible.
  • the film is attracted to the upper base by a plurality of rows of vacuum suction holes parallel to the curved edges of the 3D glass, and the vacuum is gradually released in a row as time passes during the bonding process.
  • the vacuum of all the vacuum suction holes is completely unloaded. That is to say, during the pressing process, the vacuum is partially unloaded, and then the vacuum is completely unloaded to disengage the film from the upper base, and then the upper base is rotated to avoid interference with the lower base.
  • the filming device for flat glass includes an upper base for fixing the film, a lower base for fixing the glass, a roller structure, a rotary cylinder for rotating the upper base and the roller structure, and the roller structure is pressed to provide a downward pressure.
  • the roller structure is a single silicone rubber roller. Specifically, the glass is first placed in the cavity of the lower base, and vacuumed and fixed; and the film is placed on the upper base and vacuum-fixed to remove the release film.
  • the lower base is horizontally moved back to the rolling start position, and then the upper base and the roller are rotated by the rotating mechanism, so that the film is at an angle of 15 to 30 degrees with the horizontal plane.
  • the roller in the device is linked with the upper base, both of which are driven by the rotary cylinder to rotate in the vertical direction, and the rotary cylinder rotates to maintain a certain angle between the film and the glass plane, and the film portion is located under the roller, and the roller can be Provides a suitable press force for bonding.
  • the film sheet is also positioned on the upper base by vacuum suction, and a part of the area is exposed after the positioning.
  • the conventional device for flat glass mucosa cannot apply a film to a curved glass, and bubbles are generated during the bonding process, which may cause interference between the upper and lower bases.

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Abstract

一种用于两对边为曲边的3D玻璃(2)的贴膜装置(1)和贴膜方法，所述贴膜装置(1)包括用于固定菲林膜(3)的上底座(11)，用于固定所述3D玻璃(2)的下底座(12)，滚轮结构(13)，用于旋转上底座(11)的旋转气缸(14)，用于上底座(11)、旋转气缸(14)和滚轮结构(13)上下运动且使得滚轮结构(13)对3D玻璃(2)和菲林膜(3)的压合施加压力的升降气缸(15)，所述滚轮结构(13)包括在下的滚轮(131)和在上的压滚(132)，所述旋转气缸(14)用于旋转上底座(11)使得上底座(11)与滚轮结构(13)间的相对位置改变和固定。该装置结构精简，部件容易获取，生产方便；该装置和方法非常适合于对两对边为曲边的3D玻璃贴膜，其操作方便且贴膜精度高，贴合效率高。

Description

一种用于两对边为曲边的3D玻璃的贴膜装置及贴膜方法 技术领域
本发明涉及膜片贴合技术领域，具体涉及一种用于两对边为曲边的3D玻璃的贴膜装置及贴膜方法。
背景技术
两边弯的曲面玻璃膜片贴合，是指将有纹理和颜色的装饰膜片(一般为菲林膜)通过滚轮滚压而将膜片贴合在两边弯的曲面玻璃的凹面上的方法。
在保护玻璃上贴装饰膜的过程主要应用于手机面板中。因为膜片相对于玻璃来说可以更方便地做纹理转印，且丝印时可以一次印刷多片，与单片丝印玻璃相比极大地提升了生产效率。另外，由于两边弯曲面玻璃的结构特殊性，使得在其上丝印图案会很不方便，同时丝印得到的视窗区的长宽尺寸和位置尺寸都无法保证精准。而这些缺点都可以通过先将图案丝印在膜片上再把膜片贴合在白玻上的方案来解决，如此可以保证很好的产品精度的同时其经济性也很高。
普通的平片玻璃贴膜时，贴膜装置中滚轮的滚压方向平行于玻璃的长边或短边均可。由于两边弯曲面玻璃的结构特殊性，若用原有的平片玻璃贴合方式则贴合机构会与下底座干涉且会在玻璃片上有的位置因滚轮压力不均导致缺陷，其中压力小的位置装饰膜会与玻璃贴合不紧，压力大的位置装饰膜与玻璃接触太紧而导致菲林被压伤。因此，本领域需要针对两对边为曲边的3D玻璃开发一种新的贴膜装置和贴膜方法。
专利申请CN201510351281.X提供一种自动贴膜设备，包括治具机构、翻转机构、胶辊机构、定位机构、撕膜机构和平台，玻璃屏放置于治具机构，治具机构安装于翻转轴，翻转机构固定于机床；平台设于翻转机构的下方，软膜固定于平台的上端，且软膜贴合起始端伸出于平台的侧端；定位机构设于平台的一侧，位于软膜贴合起始端相同的一侧，包括给软膜贴合起始端的X向定位的定位件、定位件平移机构和驱动定位件水平移动的第二 驱动器；胶辊机构位于软膜的贴合起始端下方。本发明根据以上结构，可实现大曲率曲面或者变化曲率曲面的玻璃屏与软膜的自动化贴合，并且使软膜一边撕保护膜一边自动贴合，防止灰尘粘附，并且提高工作效率。
该专利申请中的玻璃屏设置于翻转轴上，软膜设置于翻转轴和玻璃屏的下方，且贴膜过程中一边撕保护膜一边自动贴合，该装置并不适合于对两对边为曲边的3D玻璃贴膜。因此，本领域仍需要一种用于两对边为曲边的3D玻璃的高精度、高效率贴膜装置和贴膜方法。
发明内容
本发明提供一种用于两对边为曲边的3D玻璃的贴膜装置，所述贴膜装置包括用于固定菲林膜的上底座，用于固定所述3D玻璃的下底座，滚轮结构，与上底座连接而用于单独旋转上底座的旋转气缸，用于上底座、旋转气缸和滚轮结构同步上下运动且使得滚轮结构对玻璃和菲林膜的压合施加压力的升降气缸，所述滚轮结构包括在下的滚轮和在上的压滚，所述旋转气缸用于旋转上底座使得上底座上固定的菲林膜与滚轮结构间的相对位置改变和固定；且滚轮和压滚的轴向均设置为与固定在下底座上的3D玻璃的两条曲边的长度方向一致，使得滚轮先滚压3D玻璃的一条曲边，再滚压3D玻璃的平面部分，最后滚压3D玻璃的另一条曲边。
在一种具体的实施方式中，所述压滚包括第一压滚和第二压滚，且第一压滚和第二压滚均位于所述滚轮的斜上方。
在一种具体的实施方式中，所述第一压滚和第二压滚的直径相同且均为不锈钢压滚，所述滚轮是内芯为不锈钢的硅胶滚轮，所述菲林膜为PET膜，旋转气缸、升降气缸、以及带动下底座在水平面内直线运动的驱动部件均与控制器连接。
在一种具体的实施方式中，在下底座从后至前的运动方向上，滚轮结构中在前的第一压滚的设置高度低于在后的第二压滚的设置高度。
在一种具体的实施方式中，所述装置还包括对下底座上的3D玻璃进行精确定位的两组水平气缸和挡块，其中一组水平气缸和挡块分别设置在3D玻璃长度方向的两侧，另一组水平气缸和挡块分别设置在3D玻璃宽度方向的两侧。
在一种具体的实施方式中，所述滚轮外表面的半径小于等于3D玻璃内R角半径。
本发明还提供一种用于两对边为曲边的3D玻璃的贴膜方法，包括如下步骤：
步骤A、将两对边为曲边的3D玻璃凹面朝上放入下底座的型腔中，并对其进行精确定位，真空吸附将玻璃固定；且将菲林膜置入上底座上定位，菲林膜的部分面积露出上底座，真空吸附将菲林膜固定，再撕去菲林上的离型膜；
步骤B、旋转气缸旋转上底座和菲林片，使得菲林片上露出上底座的部分旋转至滚轮下方，且通过旋转使得菲林片与水平面呈一定角度；
步骤C、固定有玻璃片的下底座在水平面的前后方向上直线运动至贴合起始位置；
步骤D、升降气缸带动上底座、旋转气缸和滚轮结构向下运动至贴合起始位置，使得菲林与玻璃接触，滚轮将菲林与玻璃压紧；
步骤E、升降气缸下降到位后保持不动，下底座开始在水平面的前后方向上直线运动，滚轮一直保持对菲林的压力，下底座的运动带动滚轮转动使得菲林与玻璃间压合紧密；在贴合过程中，卸载真空使得上底座与菲林膜间完全分离且上底座在旋转气缸的作用下旋转而使得上下底座间不会相互干涉和碰撞；
步骤F、贴合完成后，下底座卸载真空，从下底座上取出贴合好的成品。
优选地，步骤F中贴合好的成品放入萃盘中累积到一定数量后发至下道工序镀玻璃正面防油膜，再放入高压脱泡机脱泡，脱泡压力例如为0.65MPa，脱泡温度例如为65℃。
在一种具体的实施方式中，在步骤E中，贴膜过程分为四个时间段，其中第一段为玻璃的第一曲边贴膜，第二段为玻璃的平面部分贴膜且此时菲林膜吸附在上底座上，第三段为玻璃的平面部分贴膜且此时菲林膜从上底座上分离且上底座开始旋转，第四段为玻璃的第二曲边贴膜。
在一种具体的实施方式中，第一段和第四段的贴膜过程中，下底座以1～10mm/s，优选2～8mm/s的速度运动；第二段和第三段的贴膜过程中，下底座以20～800mm/s，优选50～200mm/s的速度运动。在一种具体的实施方式中，贴膜压力保持为表压在0.05～0.4MPa。在一种具体的实施方式中，所述方法包括使用如上所述贴膜装置贴膜。在一种具体的实施方式中，步骤A中使用两组水平气缸和挡块对3D玻璃进行精确定位。
有益效果：
1)本发明通过“旋转气缸单独控制上底座”和“升降气缸统一控制上底座和滚轮结构”的方式，结合“在滚压曲面玻璃的平面时将菲林片与上底座彻底分离”的方式，使得本发明所述贴膜装置既可以保证贴合时菲林处于滚轮下方以及菲林片与水平面间的初始角度，也可以保证上下底座间不干涉，还可以保证滚轮结构给玻璃和菲林提供平稳的贴合压力。本发明提供的装置结构精简，部件容易获取，生产方便，其提供的贴膜效果好。
2)本发明采用含滚轮和压滚的滚轮结构，区别于现有技术中仅使用一根滚轮的方式，使得本发明中滚轮不易变形且该滚轮结构能为3D玻璃与菲林膜间提供平稳的贴合压力，使得菲林与玻璃的贴合达到理想的效果。
3)本发明采用型腔初步定位和水平油缸和挡片对3D玻璃精确定位的方式，使得本发明的3D玻璃定位更准确，贴合更精确，贴膜成品率高。
4)本发明提供的方法非常适合于对两对边为曲边的3D玻璃贴膜，其操作方便且贴膜精度高，贴合效率高。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1(a)和图1(b)均为本发明中贴膜装置的结构示意图；
图2是3D玻璃的结构示意图，其中图2a是其主视图，图2b是其俯视图；
图3是菲林膜的结构示意图，其中图3a是其主视图，图3b是其侧视图；
图4是贴膜装置的下底座的结构示意图；
图5是贴膜装置的上底座和旋转气缸的结构示意图；
图6是上底座与菲林膜吸合示意图；
图7是贴膜装置的滚轮结构的结构示意图；
图8是贴膜装置的升降气缸的结构示意图。
图中，1、贴膜装置，11、上底座，12、下底座，13、滚轮结构，131、滚轮，132、压滚，132a、第一压滚，132b、第二压滚，14、旋转气缸，15、升降气缸，2、3D玻璃，21、3D玻璃内R角，3、菲林膜。
具体实施方式
以下结合附图对本发明的实施例进行详细说明，但是本发明可以根据权利要求限定和覆盖的多种不同方式实施。
图1为本发明中贴膜装置的结构示意图，从图中可见所述贴膜装置1包括用于固定菲林膜3的上底座11，用于固定3D玻璃2的下底座12，滚轮结构13，用于旋转上底座的旋转气缸14，以及用于上底座、旋转气缸和滚轮结构上下运动且使得滚轮结构对玻璃和菲林膜施加压力的升降气缸15。本发明中，滚轮、旋转气缸和上底座都是分别安装的部件，它们都可以固定在上下气缸带动的支撑板上。
图2和图3分别为3D玻璃和菲林膜的结构示意图，从图中可见所述3D玻璃为两对边(玻璃的两条长边)为曲边的3D玻璃，而菲林膜为正面形状与3D玻璃基本相同的平面膜。其中，玻璃的总高度小于等于4mm，玻璃片厚度一般为0.15～0.8mm，例如0.4mm或0.55mm，3D玻璃内R角的半径大于等于4.5mm；菲林膜的总厚度与玻璃片的厚度相近，所述装饰膜(菲林膜)共三层，第一层为离型膜、第二层为PET膜、第三层为保护膜，第二层PET膜与离型膜接触的面涂有OCA胶，该面用于与3D玻璃的内凹面粘合，第二层PET膜的另一面丝印有油墨，保护膜用于保护PET膜上丝印的油墨。本发明中，如图所示的两对边为曲边的3D玻璃一般可用于手机的前盖或后盖，当3D玻璃用作手机前盖时，其装饰膜上的边框区丝印油墨，而当3D玻璃用作手机后盖时，其装饰膜上整面丝印油墨。本发明中3D玻璃可以是其长度方向均为曲边而宽度方向均为直边(如附图所示)，或宽度方向均为曲边而长度方向均为直边，这在本发明中不受限制。
图4是贴膜装置的下底座的结构示意图。其中，下底座的长边和短边方向均有自动对位气缸，所述下底座有分为两块，大的一块带吸气孔、短边定位块和定位气缸，小的一块通过长边方向的定位气缸主要起长边方向的定位作用。下底座的传动机构通过设定不同段的速度来设定具体的贴合速度。在一种优选方式中，本发明中采用型腔对3D玻璃进行基本定位，再使用两组水平气缸和挡块对其进行精确定位。在平面玻璃的贴膜装置中，将平面玻璃放在下底座的型腔中，因型腔的尺寸必须大于玻璃尺寸的上限值，且单边需留出0.02mm的余量，如单边长为50mm的玻璃，其标准公差为0.005mm，则型腔的尺寸为50.025mm，这就导致型腔对玻璃的定位不够准确。本发明中首先采用型腔对3D玻璃进行 基本定位，再采用双气缸L型(包括一条直边和一条曲边)定位方法对其进行精确定位，其中气缸和挡块均可固定设置在装置的底座上。
图5是贴膜装置的上底座和旋转气缸的结构示意图。所述上底座包括真空吸气孔，且上底座上自带L型定位边，所述真空吸气孔通过外接真空源吸附菲林，所述菲林紧靠在L型定位边上定位，图6是上底座与菲林膜吸合示意图。上底座固定在支撑板上，支撑板的另一端连接有旋转气缸，所述旋转气缸通过气缸的旋转带动整个上底座旋转，所述旋转气缸自带角度限位机构，通过调节限位机构可以调节上底座旋转的角度。
图7是贴膜装置的滚轮结构的结构示意图。所述的滚轮结构固定在支撑板上，所述滚轮结构包括平行设置的两条不锈钢压滚和一根硅胶滚轮。两条不锈钢压滚保证了整个硅胶滚轮在滚压时受力均匀，所述硅胶滚轮直径为8mm。本发明的发明人通过使用发现，使用两个与滚轮平行的压滚与滚轮一起构成滚轮结构，且两个压滚的位置关系遵从一定原则时，滚轮结构对粘合施加的滚压力最为均匀，滚压效果最好。具体地，在摩擦力的作用下，两个压滚也会随滚轮旋转而转动。本发明中，在下的硅胶滚轮(不锈钢芯直径6mm，硅胶层厚度为1mm，因而硅胶滚轮的半径为4mm)用于为贴膜提供直接的压力，而在上的两根不锈钢圆柱压滚(直径为10mm)用于确保硅胶滚轮不变形和施压力均匀，最终使得菲林与玻璃的贴合具备理想的效果。
图8是贴膜装置的升降气缸的结构示意图。所述升降气缸的主要作用是使上底座和滚轮结构升降到位和在菲林与玻璃贴合时保持滚轮对其施加的压力；滚轮压力例如可以在0.05-0.4MPa间可调。
本实施例中的贴膜步骤包括：先把菲林定位在上底座上，上底座携带菲林可在旋转气缸的驱动下在竖直方向转动，如图所示，玻璃的两长边为曲边，而宽边为直边时，菲林的宽度略大于上底座的宽度且部分伸出上底座外(如露出约10mm的宽度)，菲林的长度小于上底座的长度以便菲林在上底座上准确定位，菲林在上底座的定位方法与现有技术相同。菲林定位后真空吸附将菲林膜固定，再通过撕膜胶带撕去菲林上的离型膜。使用下底座的型腔和水平气缸将3D玻璃定位在下底座上，再通过真空吸附将玻璃固定。旋转气缸使上底座转动至菲林片与水平面(或3D玻璃的平面)间整体呈15～30°的夹角，且露出的一块转动至滚轮的下方。之后，先使得下底座水平前后移动至滚压起始位，在一种具体的实施 方式中，下底座通过丝杠从远离操作者的一侧移动至靠近操作者一侧的滚压起始位，而后使得上底座和滚轮在升降气缸的带动下向下移动，使得上底座和滚轮也下移至滚压起始位，此时菲林与玻璃接触。滚轮把菲林压在玻璃的贴合起始位，整片菲林依然真空吸合固定在上底座上，菲林片与水平面间依然呈15～30°的夹角。滚压过程中，在滚轮上施加压力压住菲林和玻璃，在下底座水平前后运动的带动下，滚轮滚动，滚轮上并不施加自发的转动力。在一种具体的实施方式中，贴合过程中在丝杠传动作用下，下底座从靠近操作者的一侧向远离操作者的一侧运动，同时贴合过程中是先贴合远离操作者的玻璃曲边，最后贴合靠近操作者的玻璃曲边。
本发明中，滚压过程中施加在滚轮上的力保持均匀不变，但滚曲边时滚压速度慢，而滚直边时滚压速度快。滚压过程共分四段，滚压第一曲边→滚压平面(菲林贴合在上底座上)→滚压平面(菲林与上底座分离且上底座旋转)→滚压第二曲边，其中滚压曲边的速度(下底座在水平面内前后方向的移动速度)为5mm/s，而滚压平面的速度为100mm/s。本发明中，之所以滚压平面需要分为两段，是因为在滚压平面的过程中上底座要及时旋转才能避免在滚压第二曲边时上底座与下底座间干扰和碰撞。也就是说，本发明中务必在滚压平面的过程中将菲林片与上底座及时分离才能确保贴合得到的产品没气泡且上下底座间无干扰。具体地，在确保上下底座不会干扰的情况下，贴合过程中菲林与上底座间分离的时间越晚越好。在一种具体的实施方式中，菲林膜通过与3D玻璃曲边平行的多排真空吸气孔吸合在上底座上，在贴合过程中随着时间的推移而一排排逐步释放真空，待第二段与第三段的交界点即上底座开始旋转时，全部真空吸气孔的真空均已完全卸载。也就是说，压合过程中，先部分卸载真空，再全部卸载真空使得菲林膜脱离上底座，之后旋转上底座使其避免与下底座干涉。
相应的，在现有装置中滚压平片玻璃时，在滚压过程结束时才使得菲林与上底座彻底分离。用于平片玻璃的贴膜装置包括用于固定菲林膜的上底座，用于固定玻璃的下底座，滚轮结构，用于旋转上底座和滚轮结构并使滚轮结构为粘合提供下压力的旋转气缸，所述滚轮结构为单个的硅橡胶滚轮。具体地，先将玻璃放入其下底座的型腔内，真空吸合固定；且将菲林片放入上底座上真空吸合固定，撕去离型膜。先使得下底座水平前后移动至滚压起始位，再在旋转机构的带动下旋转上底座和滚轮，使得菲林片与水平面呈15～30°的夹角 且旋转至滚压贴合起始位(菲林与玻璃接触)，匀速一段滚压即可完成平片玻璃的贴膜过程。该装置中的滚轮与上底座联动，二者均由旋转气缸带动而在竖向转动，其旋转气缸旋转使得菲林片与玻璃平面间保持一定角度的同时，菲林片部分位于滚轮下方，且滚轮可为粘合提供适宜的压合力。其中，菲林片同样以真空吸合方法定位在上底座上，且定位后有一部分面积露出上底座。但现有这种用于平片玻璃粘膜的装置无法对曲面玻璃贴膜，其贴合过程中会产生气泡且会使得上下底座间干涉碰撞。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (13)

  1. 一种用于两对边为曲边的3D玻璃的贴膜装置，所述贴膜装置(1)包括用于固定菲林膜(3)的上底座(11)，用于固定所述3D玻璃(2)的下底座(12)，滚轮结构(13)，与上底座(11)连接而用于单独旋转上底座的旋转气缸(14)，用于上底座、旋转气缸和滚轮结构同步上下运动且使得滚轮结构对玻璃和菲林膜的压合施加压力的升降气缸(15)，所述滚轮结构包括在下的滚轮(131)和在上的压滚(132)，所述旋转气缸用于旋转上底座使得上底座上固定的菲林膜(3)与滚轮结构间的相对位置改变和固定；且滚轮(131)和压滚(132)的轴向均设置为与固定在下底座(12)上的3D玻璃的两条曲边的长度方向一致，使得滚轮先滚压3D玻璃的一条曲边，再滚压3D玻璃的平面部分，最后滚压3D玻璃的另一条曲边。
  2. 根据权利要求1所述贴膜装置，其特征在于，所述压滚(132)包括第一压滚(132a)和第二压滚(132b)，且第一压滚和第二压滚均位于所述滚轮的斜上方。
  3. 根据权利要求2所述贴膜装置，其特征在于，所述第一压滚和第二压滚的直径相同且均为不锈钢压滚，所述滚轮是内芯为不锈钢的硅胶滚轮，所述菲林膜为PET膜，旋转气缸、升降气缸、以及带动下底座在水平面内直线运动的驱动部件均与控制器连接。
  4. 根据权利要求2所述贴膜装置，其特征在于，在下底座从后至前的运动方向上，滚轮结构中在前的第一压滚(132a)的设置高度低于在后的第二压滚(132b)的设置高度。
  5. 根据权利要求1～4中任意一项所述贴膜装置，其特征在于，所述装置还包括对下底座上的3D玻璃进行精确定位的两组水平气缸和挡块，其中一组水平气缸和挡块分别设置在3D玻璃长度方向的两侧，另一组水平气缸和挡块分别设置在3D玻璃宽度方向的两侧。
  6. 根据权利要求1～4中任意一项所述贴膜装置，其特征在于，所述滚轮(131)外表面的半径小于等于3D玻璃内R角(21)半径。
  7. 一种用于两对边为曲边的3D玻璃的贴膜方法，包括如下步骤：
    步骤A、将两对边为曲边的3D玻璃凹面朝上放入下底座的型腔中，并对其进行精确定位，真空吸附将玻璃固定；且将菲林膜置入上底座上定位，菲林膜的部分面积露出上底座，真空吸附将菲林膜固定，再撕去菲林上的离型膜；
    步骤B、旋转气缸旋转上底座和菲林片，使得菲林片上露出上底座的部分旋转至滚轮下方，且通过旋转使得菲林片与水平面呈一定角度；
    步骤C、固定有玻璃片的下底座在水平面的前后方向上直线运动至贴合起始位置；
    步骤D、升降气缸带动上底座、旋转气缸和滚轮结构向下运动至贴合起始位置，使得菲林与玻璃接触，滚轮将菲林与玻璃压紧；
    步骤E、升降气缸下降到位后保持不动，下底座开始在水平面的前后方向上直线运动，滚轮一直保持对菲林的压力，下底座的运动带动滚轮转动使得菲林与玻璃间压合紧密；在贴合过程中，卸载真空使得上底座与菲林膜间完全分离且上底座在旋转气缸的作用下旋转而使得上下底座间不会相互干涉和碰撞；
    步骤F、贴合完成后，下底座卸载真空，从下底座上取出贴合好的成品。
  8. 根据权利要求7所述方法，其特征在于，在步骤E中，贴膜过程分为四个时间段，其中第一段为玻璃的第一曲边贴膜，第二段为玻璃的平面部分贴膜且此时菲林膜吸附在上底座上，第三段为玻璃的平面部分贴膜且此时菲林膜从上底座上分离且上底座开始旋转，第四段为玻璃的第二曲边贴膜。
  9. 根据权利要求8所述方法，其特征在于，第一段和第四段的贴膜过程中，下底座以1～10mm/s的速度运动；第二段和第三段的贴膜过程中，下底座以20～800mm/s的速度运动。
  10. 根据权利要求9所述方法，其特征在于，第一段和第四段的贴膜过程中，下底座以2～8mm/s的速度运动；第二段和第三段的贴膜过程中，下底座以50～200mm/s的速度运动。
  11. 根据权利要求8所述方法，其特征在于，贴膜压力保持为表压在0.05～0.4MPa。
  12. 根据权利要求7所述方法，其特征在于，所述方法包括使用如权利要求1～6中任意一项所述贴膜装置贴膜。
  13. 根据权利要求8所述方法，其特征在于，步骤A中使用两组水平气缸和挡块对3D玻璃进行精确定位。
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CN115009580A (zh) * 2021-03-03 2022-09-06 北京小米移动软件有限公司 贴膜装置及贴膜方法
CN113715466A (zh) * 2021-08-31 2021-11-30 东莞市艾尔玛科技有限公司 一种纳米纹理转印装饰面板的制作装置及工艺
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