JP2005060197A - Apparatus and method for attaching protective membrane - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for attaching a protective membrane to a glass sheet without forming wrinkles or bubbles on the protective membrane. <P>SOLUTION: The apparatus 1 has a conveyer 50 comprising a plurality of carrying rolls 5 which carry the glass sheet 4 placed thereon, wherein at least one rotating shaft of the carrying rolls 5 is connected to a carrying motor 6. The apparatus 1 feeds the protective membrane 8 from above and attaches it onto the glass sheet 4 placed on the conveyer 50. The apparatus 1 has a pair of upper and lower attaching rolls 14 and 15 for sandwiching the protective membrane 8 and the glass sheet 4 between them and pressure-contacting the protective membrane 8 onto the glass sheet 4. The lower attaching roll 15 is driven by an attaching motor 16 which is different from the carrying motor 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a curing film sticking device used when a film-like curing film is stuck on the surface of a glass plate.

  A glass plate having a surface coated with a film such as a heat ray reflective film, which is used as an architectural plate glass, has a curing film made of a plastic film attached to protect the coating surface. This curing film is carried by placing a glass plate on a transport roll, feeding the film from above the glass plate, and pressing it onto the glass plate with upper and lower press rolls of the glass plate. Such a film sticking apparatus is described in Patent Document 1. However, in the film sticking apparatus of Patent Document 1, since the glass plate is transported by the drive mechanism of the transport roll in the film pasting unit, for example, when the transport speed of the glass plate is changed, the traveling speed of the film and the glass plate As a result, wrinkles are generated in the film, and the film may be stuck with wrinkles.

  Moreover, since the film to be attached is pulled in the longitudinal direction and attached to the glass plate, vertical wrinkles are likely to occur in the film. Furthermore, since a conveyance roll becomes long with enlargement of a glass plate, the conveyance roll is bent due to its own weight, and an air layer is formed between the glass plate and the conveyance roll. Thereby, sufficient pressing force for film sticking cannot be obtained, and air easily enters between the film and the glass plate to easily generate bubbles.

  Moreover, in the sticking apparatus of the film of patent document 1, since the film is stuck on every glass plate, the film is cut after the film is stuck on the glass plate, and this cut end is conveyed next. In order to stick it on a glass plate, a mechanism for holding it by suction or the like is required. For this reason, a complicated structure and a large-scale installation are required.

JP-A-4-246060

  The present invention has been made in consideration of the above prior art, and has as its first object the provision of a curing film application device that can be applied to a glass plate without generating wrinkles or bubbles in the cured film. A second object of the present invention is to provide a curing film pasting apparatus capable of pasting a curing film with a small amount of equipment with a simple structure.

  In order to achieve the first object, according to the first aspect of the present invention, there is provided a conveyor comprising a plurality of conveyance rolls for placing and conveying a glass plate, and at least one of the conveyance rolls is rotated by a conveyance motor. In the curing film pasting apparatus for supplying a curing film from above the glass plate on the conveyor and sticking the curing film to the glass plate, the curing film and the glass plate are sandwiched from above and below, and the curing film is pressed against the glass plate. There is provided a curing film laminating apparatus having a pair of an upper laminating roll and a lower laminating roll, wherein the lower laminating roll and / or the upper laminating roll is driven by a laminating motor different from the conveying motor. To do.

  The invention according to claim 2 is characterized in that the curing film is supplied and pasted onto the glass plate after contacting the downwardly convex substantially cylindrical wrinkle removing member.

  In the invention of claim 3, the lower sticking roll is provided with a plurality of auxiliary rolls on its lower side.

  Furthermore, in invention of Claim 4, it has a conveyor which consists of several conveyance roll which mounts and conveys a glass plate, At least one of this conveyance roll is rotated by the motor for conveyance, The glass plate on the said conveyor In a curing film pasting method using a curing film pasting apparatus for supplying a curing film from above and pasting the curing film on a glass plate, a lower pasting roll and / or an upper pasting driven by a pasting motor different from the transport motor A curing film is attached to the glass plate by pressing the curing film together with the glass plate from above and below with the roll and the upper application roll located above the lower application roll. Provide a method.

  Furthermore, in order to achieve the second object, in the invention of claim 5, there is provided a conveyor composed of a plurality of conveyance rolls for placing and conveying the glass plate, and curing is performed from above the glass plate on the conveyor. In the curing film pasting device for feeding and pasting the film, the plurality of the glass plates are continuously conveyed, the curing film in a continuous state is pasted to the plurality of glass plates, and the curing film is pasted to be adjacent to each other. Provided is a curing film pasting apparatus having a cutting cutter for cutting a curing film between glass plates.

  According to the invention of claim 1, the lower application roll and / or the upper application roll are rotationally driven by an application motor different from the conveying motor, and the curing film and the glass plate are sandwiched between the upper application roll and the lower application roll. Since the advancing speed of both the curing film and the glass plate is substantially governed by the affixing motor in order to apply pressure contact with each other, the glass plate proceeds at a speed different from that of the transport roll and affixes the curing film. There is no difference between the supply rate of the curing film and the glass plate, and the curing film is not wrinkled and pasted.

  According to the second aspect of the present invention, when the curing film is supplied in contact with the lower convex surface of the wrinkle removing member, a tensile force is exerted on the curing film from the center in the width direction toward both outer sides. The vertical wrinkles of the cured film supplied in this manner can be removed by extending in the width direction.

  According to invention of Claim 3, since the bending by the self-weight of a lower sticking roll can be prevented with an auxiliary roll, it can prevent that a clearance gap produces between a curing film and a lower sticking roll, and can prevent generation | occurrence | production of a bubble.

  According to the invention of claim 4, the lowering roll and the upper sticking roll which are rotationally driven by the sticking motor govern the conveying speed of the glass plate, and the curing film and the glass plate are composed of the upper sticking roll and the lower sticking roll. Since the advancing speed of both the curing film and the glass plate is substantially governed by the affixing motor, the supply speed of the curing film and the glass plate when pasting the curing film is applied. No slippage occurs, and no wrinkles are generated on the cured film.

  According to the invention of claim 5, after pasting the cured film in a continuous state on a plurality of glass plates conveyed in parallel, the cured film between adjacent glass plates is cut with a cutting cutter, so the glass plate A facility for sucking and holding the curing film for each sheet is not necessary, and the curing film can be adhered to the glass plate with a simple structure and a reduced number of parts.

The present invention will be described below with reference to the drawings.
1 is a schematic view of a curing film sticking apparatus according to the present invention, FIG. 2 is a schematic plan view of a wrinkle removing roll, and FIG. 3 is a front view of a pair of upper and lower sticking rolls.

  A curing film pasting apparatus 1 according to the present invention includes a glass plate transport unit 2 and a curing film supply unit 3. The glass plate transport unit 2 includes a conveyor 50 composed of a plurality of parallel cylindrical transport rolls 5 for placing and transporting the glass plate 4, and a transport motor 6 for driving the conveyor 50. The transport motor 6 is connected to the rotation shafts of a plurality (one in the figure) of the transport motor 6 to the extent that the glass plate 4 can be transported via the drive chain 7. The curing film supply unit 3 guides the curing film roll 80, the guide film 10 that guides the curing film 8 in the form of a continuous strip drawn from the curing film roll 80, the curing film 8, and is cured as described later. A wrinkle removing roll 11 excluding wrinkles of the film 8 and a dancer roll 9 for applying tension to the curing film 8 are provided. In addition, as a material of the curing film 80, a polyethylene film etc. are illustrated.

  When the curing film 8 is supplied to the glass plate, the tip of the curing film 8 is set at the position of the vacuum bar 12 provided in the curing film supply unit 3. The curing film 8 is sucked and held by the vacuum bar 12. When the glass plate 4 is transported by the transport roll 5, the vacuum bar 12 is lowered along with the tip of the glass plate 4, and at the same time, the suction of the curing film 8 by the vacuum bar 12 is stopped. Thereby, the curing film 8 is stuck to the glass plate 4 and is pulled and supplied with the movement of the glass plate 4.

  When this curing film 8 is stuck to the glass plate 4, it is reliably stuck by being sandwiched between a pair of upper sticking roll 14 and lower sticking roll 15. The rotating shaft of the lower sticking roll 15 is connected via a drive chain 7 to a sticking motor 16 that is different from the transport motor 6 that rotates the transport roll 5. The upper sticking roll 14 is connected to the air cylinder 20 and presses the glass plate 4. The upper sticking roll 14 may be rotated by a sticking motor different from the conveyance motor 6 instead of the air cylinder 20. As described above, the glass plate 4 is sandwiched between the pair of upper and lower application rolls 14 and 15 having the dedicated application motor 16 and pressed from above and below, so that the conveyance speed of the glass plate 4 at this portion is determined for application. Dominated by motor 16. Therefore, the rotation speed of the lower sticking roll 15 can be adjusted so that the traveling speed between the curing film 8 and the glass plate 4 does not shift. Thereby, since the glass plate 4 which stuck the curing film 8 with the upper and lower sticking rolls 14 and 15 can be pinched | interposed reliably, it can be affixed on the glass plate 4 in the state which the wrinkle by the shift | offset | difference generate | occur | produced in the curing film 8. Disappear.

  While the curing film 8 is sucked above the glass plate 4 by the vacuum bars 12 and 13, the glass plate 4 moves while the curing film 8 is being applied, and when the rear end of the glass plate 4 approaches, the cutting cutter 17 descends. The curing film 8 is cut along the rear end of the glass plate 4. Since the rear end portion of the cut curing film 8 is moved while being sucked and held by the vacuum bar 13, the film does not wrinkle or sag at the position of the pasting rolls 14 and 15 until the end. At this time, the tip of the curing film to be attached to the next glass plate is held by the vacuum bar 12. After that, when the next glass plate 4 is conveyed, the vacuum bar 12 is lowered along with the tip of the next glass plate 4 and the curing film 8 is attached. In addition, it is preferable that the moving speed of a glass plate is 2-14 m / s at the point which can suppress generation | occurrence | production of a wrinkle and a bubble. The size of the glass plate is preferably 1 to 4 m in length, 1 to 3 m in width, and 2 to 19 mm in thickness with respect to the traveling direction in terms of the size of the cutting device and the required characteristics of the glass plate.

  As shown in FIG. 2, a wrinkle removing roll 11 that is a wrinkle removing member may be provided before the curing film is attached. The wrinkle removing roll 11 has a substantially cylindrical shape that is convex downward with respect to the central axis, and always rotates around the rotation axis W in a downward convex shape. The deflection amount D of the wrinkle removing roll is an amount that a normal roll used for a curing film supply roll for a large glass plate is bent by its own weight, and is preferably 0.1 to 0.5 mm. As a result, the curing film 8 supplied in contact with the wrinkle removing roll 11 is extended in the width direction (arrow K direction in FIG. 2) and spread, so that the vertical wrinkles generated by being pulled in the longitudinal direction are expanded in the width direction. It can be removed by extending from the center to both sides.

  As shown in FIG. 3, a plurality of auxiliary rolls 18 may be provided below the lower sticking roll 15. For example, three auxiliary rolls 18 are provided in the width direction (axial direction) of the lower sticking roll 15 and two in front and rear (see FIG. 1), for a total of six. The auxiliary roll 18 is rotated following the rotation of the lower sticking roll 15, and prevents downward deflection due to the weight of the lower sticking roll 15 accompanying the increase in size of the glass plate 4. Thereby, it can prevent that a clearance gap produces between the curing film 8 and the lower sticking roll 15, and generation | occurrence | production of a bubble can be prevented.

FIG. 4 is a schematic view of another curing film pasting apparatus according to the present invention.
When the curing film 8 is pasted on the glass plate 4 using the curing film pasting device 19, when the glass plate 4 is transported to the pasting position by the conveyor 50 including the transport roll 5, the next glass plate 4 is transported. The rotation of the transport roll 5 at that location stops. When the next glass plate 4 is conveyed and the glass plate is continuously conveyed with a slight gap, the conveyance roll 5 rotates and conveys the glass plate 4 while applying the curing film 8. This operation is repeated, and the cured film 8 in a continuous state is attached to the plurality of glass plates 4. The pasting is preferably performed by a pair of upper and lower pasting rolls 14 and 15 as described above. After pasting here, the curing film between the adjacent glass plates 4 is automatically cut by the cutting cutter 17.

  Thus, by providing the cutting cutter 17 on the rear side in the conveying direction of the glass plate 4 with respect to the positions of the pair of upper and lower sticking rolls 14 and 15, the curing film 8 is attached to the front and rear ends of each glass plate. A pasting mechanism becomes unnecessary. Therefore, a facility for sucking and holding the curing film 8 is not required, and the curing film 8 can be attached to the glass plate 4 with a simple structure with a reduced number of parts. In addition, the motor 16 for sticking mentioned above, the wrinkle removal roll 11, and the auxiliary | assistant roll 18 can also be used together for the curing film sticking apparatus of a present Example.

  Using the apparatus described in FIG. 1, a cured film having a width of 2.5 m is formed at a speed of 10 m / s on a glass plate having a length of 3.6 m, a width of 2.5 m, and a thickness of 10 mm with respect to the traveling direction. Pasted for months. At this time, there was no trouble that wrinkles or bubbles were generated in the cured film. In addition, the bending allowance of the wrinkle removing roll 11 is 0.2 mm, the diameter and width length of the wrinkle removing roll 11 are 110 mm and 2.7 m, respectively, and the diameter and width length of the upper sticking roll 14 are Each of them was 110 mm and 2.7 m, and the diameter and width of the lower sticking roll 15 were 110 mm and 2.7 m, respectively.

Schematic of the curing film sticking apparatus which concerns on this invention. The schematic plan view of a wrinkle removal roll. The front view of a pair of upper and lower sticking rolls. Schematic of another curing film sticking apparatus according to the present invention.

Explanation of symbols

1: Curing film pasting device, 2: Glass plate transport unit, 3: Curing film supply unit,
4: glass plate, 5: transport roll, 6: motor for transport,
7: Drive chain, 8: Curing film, 9: Dancer roll,
10: Guide roll, 11: Wrinkle removing roll,
12: Vacuum bar, 13: Vacuum bar,
14: Upper sticking roll, 15: Lower sticking roll, 16: Motor for sticking,
17: Cutter for cutting, 18: Auxiliary roll,
19: Curing film pasting device, 20: Air cylinder,
50: Conveyor, 80: Curing film roll.

Claims (5)

It has a conveyor consisting of a plurality of transport rolls that place and transport glass plates,
At least one of the transport rolls is rotated by a transport motor;
In the curing film pasting device for feeding the curing film from above the glass plate on the conveyor and pasting the glass plate and the curing film,
Having a pair of upper application roll and lower application roll to sandwich the curing film and the glass plate from above and below to press and adhere the curing film to the glass plate;
A curing film sticking apparatus, wherein the lower sticking roll and / or the upper sticking roll is driven by a sticking motor different from the conveying motor.   The curing film pasting apparatus according to claim 1, wherein the curing film is supplied and pasted on the glass plate after contacting a downwardly convex substantially cylindrical wrinkle removing member.   The curing film sticking apparatus according to claim 1 or 2, wherein the lower sticking roll includes a plurality of auxiliary rolls on the lower side thereof. It has a conveyor consisting of a plurality of transport rolls that place and transport glass plates,
At least one of the transport rolls is rotated by a transport motor;
In the curing film pasting method using the curing film pasting apparatus for feeding the curing film from above the glass plate on the conveyor and pasting the glass plate and the curing film,
A lower application roll and / or an upper application roll driven by an application motor different from the conveying motor;
The above-mentioned curing film is sandwiched from above and below with the above-mentioned glass plate with the above-mentioned upper sticking roll located above the lower sticking roll, and press-contacted,
A curing film pasting method, wherein the curing film is pasted on the glass plate. It has a conveyor consisting of a plurality of transport rolls that place and transport glass plates,
In the curing film pasting device for supplying and pasting the curing film from above the glass plate on the conveyor,
Conveying a plurality of the glass plates continuously, pasting a cured film in a continuous state on the plurality of glass plates, and having a cutting cutter for cutting a cured film between adjacent glass plates after pasting the cured film Curing film pasting device characterized by that.

Images