JP2007002127A - Laminating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminating apparatus which can efficiently paste a protection film to a workpiece. <P>SOLUTION: The laminating apparatus is equipped with a film feeding mechanism 1 which feeds the front of a protection film F in a tape form to a prescribed position, a transfer drum 2 which adheres the protection film F fed to the prescribed position and holds at an outer periphery and rotates, a film cutting mechanism 3 which cuts the protection film F wound and adhered to a transfer roller 2 into a portion f of the protection film with a specific length and a work transfer mechanism 1 which pastes the protection film f adhered to the transfer drum 2 onto the surface of a workpiece w by moving the workpiece w to the tangential direction of the outer periphery relative to the transfer drum 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laminating apparatus for attaching a transparent protective film to a panel surface when shipping a small display panel product such as a liquid crystal module for a mobile phone or a touch panel of various electric devices.

Conventionally, the protective film is applied manually, and the protective film cut to a predetermined size and attached to the release paper is peeled off one by one and aligned to the surface of the workpiece (display panel product). It was like that. In addition, an apparatus has also been proposed in which a film cut into a predetermined length is sucked and conveyed and transferred to a temporary pressure-bonding roll, and the film is attached to a work (printed circuit board) via the temporary pressure-bonding roll (see, for example, Patent Document 1). ).
JP 2003-206450 A

  Therefore, a large amount of time and a large number of workers are required for the work of attaching the protective film, and improvement of work efficiency is desired. Moreover, in the laminating apparatus provided with the mechanism which cut | disconnects a film and conveys to a temporary crimping | compression-bonding roll, there exists a difficulty that an apparatus becomes large.

  This invention was made paying attention to such a situation, and it aims at providing the laminating apparatus which can perform the sticking of the protective film to a workpiece | work with a highly efficient and comparatively simple structure. Yes.

  According to a first aspect of the present invention, there is provided a film feeding mechanism that feeds the leading end of a tape-shaped protective film to a predetermined position, a transfer drum that rotates by rotating the protective film fed to the predetermined position to the outer peripheral surface, and a transfer drum. A film cutting mechanism that cuts the protective film wound up by being sucked and held into protective film pieces of a predetermined length, and synchronized with the peripheral speed of the transfer drum that is driven to rotate while the work is pressed against the outer peripheral surface of the transfer drum And a workpiece transfer mechanism for transferring the protective film piece adsorbed and held on the transfer drum to the surface of the workpiece by relative movement in the drum tangential direction at the above speed.

  According to this configuration, after the protective film fed to a predetermined position by the film feeding mechanism is wound on the outer peripheral surface of the transfer drum by suction, the protective film is cut into protective film pieces of a predetermined length by the film cutting mechanism. The protective film piece adsorbed and held on the outer peripheral surface of the transfer drum is pressed and brought into contact with the workpiece carried by the workpiece transfer mechanism, and is moved relative to the drum tangential direction at a speed synchronized with the peripheral speed of the transfer drum. The piece can be transferred and pasted from the transfer drum to the surface of the work, and by repeating this process sequentially, the protective film can be stuck onto the work continuously and efficiently. In addition, since the protective film is cut to a predetermined length after the protective film is wound around the transfer drum, there is no need for a transport mechanism for transporting the preliminarily cut protective film to the transfer drum, and the laminating apparatus can be simplified. Can be configured.

According to a second invention, in the first invention,
The film feeding mechanism is configured to reciprocate a suction block for sucking and holding the protective film with a predetermined stroke.

  According to this configuration, even if the protective film is thin and flexible, the posture is stabilized by being held by the suction block, and the transfer drum can be reliably fed to a predetermined position.

According to a third invention, in the first or second invention,
A film adsorbing section that adsorbs and holds the front end of the protective film supplied by the film feeding mechanism is provided at a predetermined phase on the outer peripheral surface of the transfer drum.

  According to this configuration, the protective film is wound around the transfer drum with the front end of the protective film adsorbed and held, so that the protective film can be wound around the transfer drum without generating wrinkles or waves. The transfer finish to the work will be good.

  As described above, according to the laminating apparatus of the present invention, the protective film can be attached to the workpiece with high efficiency and a relatively simple configuration.

  FIG. 1 shows the basic configuration of the entire laminating apparatus according to the present invention. The laminating apparatus includes a film feeding mechanism 1, a transfer drum 2, a film cutting mechanism 3, and a work transfer mechanism 4.

  The film feeding mechanism 1 includes a guide roller 5 that guides and supplies a protective film F fed from a raw film roll FR along a predetermined path, and a protective film F that has been guided and supplied upward. The suction block 7 is provided with a vacuum suction hole 6 for suction and holding, and an air cylinder 8 for reciprocating the suction block 7 up and down with a predetermined stroke.

  The transfer drum 2 is supported horizontally and horizontally above the film feeding mechanism 1. The transfer drum 2 is rotationally controlled by a stepping motor 10. On the outer peripheral surface of the transfer drum 2, a film suction portion 12 is formed in which vacuum suction holes 11 are arranged in a horizontal row at a predetermined phase, and a plurality of vacuums (not shown) are also formed on the other outer peripheral surface. Adsorption holes are formed so that the protective film can be adsorbed and held in a surface state. Furthermore, the outer peripheral surface of the transfer drum 2 and the film moving path by the film feeding mechanism 1 are arranged so as to contact each other. The adsorption of the protective film to the transfer drum 2 is not limited to vacuum adsorption, and electrostatic adsorption may be used.

  The film cutting mechanism 3 is arranged at a position immediately above the film feeding mechanism 1, and includes a cradle 14 having a vacuum suction hole 13 for sucking and holding the protective film F in a vertical posture from the surface side. A cutter 15 is provided on the protective film F that has been sucked and held. Here, the cradle 14 is moved in the lateral direction by the air cylinder 16 so as to be reciprocally movable between the operating position located on the front surface of the protective film F and the retracted position deviated laterally. The cutter 15 is driven forward and backward by an air cylinder 17.

  The workpiece transfer mechanism 4 is disposed above the transfer roller 2 and is supported by a carrier 22 supported so as to be horizontally movable back and forth along a linear guide 21, and a non-slip wound around the front and back horizontally by connecting the carrier 22. A mold transfer belt 23 and a stepping motor 24 for rotating the transfer belt 23 forward and backward are provided. The carrier 22 is provided with a movable frame 26 that is moved up and down by an air cylinder 25. The movable frame 26 is equipped with a plurality of suction nozzles 27 facing downward. The suction nose 27 is supported so as to slide back upward against the spring 28 when receiving an upward external force of a certain level or more (see FIG. 2).

  The laminating apparatus according to the present invention has the above-described structure. Next, the film sticking operation will be described with reference to the process diagrams of FIGS.

  (1) As shown in FIG. 2, the suction block 7 of the film feeder 1 is in the lowered position and sucks and holds the lower part of the front end of the protective film F. In this case, the front end of the protective film F corresponds to the cutting position of the film cutting mechanism 3, and the protective film F protrudes from the upper end of the suction block 7 by a set length. At this time, the film adsorbing portion 12 of the transfer drum 2 is set at the front origin position a, and the cradle 14 and the cutter 15 of the film cutting mechanism 3 are each waiting at the retracted position.

  (2) Next, as shown in FIG. 3, the suction block 7 is raised by a predetermined distance from the lowered position, the leading end of the protective film F is sent to the origin position a of the transfer drum 2, and is negatively applied to the film suction portion 12. Pressure is applied and the tip of the protective film F is sucked and held.

  (3) Next, as shown in FIG. 4, the suction of the suction block 7 is released and the transfer drum 2 starts to rotate in the film winding direction. Further, the suction block 7 which has been released from suction is lowered to its original position.

  (4) As shown in FIG. 5, the transfer drum 2 is rotated by a set angle corresponding to the cutting length of the protective film F and stopped, and the cradle 14 of the film cutting mechanism 3 advances to the cutting action position. The protective film F is sucked and held from the surface side. In this state, the cutter 15 moves forward to cut the protective film F.

  (5) Next, the transfer drum 2 rotates again in the film winding direction, and the cut protective film piece f having a predetermined length is wound up and transferred upward.

  (6) As shown in FIG. 6, when the leading end of the protective film piece f reaches the affixing position b immediately above the transfer drum by the rotation of the transfer drum 2, the rotation of the transfer drum 2 is temporarily stopped. In the meantime, in the workpiece transfer mechanism 4, the workpiece w is sucked and held at the workpiece supply position L in a horizontal posture with the surface, which is the film attachment surface, facing downward, and is conveyed above the transfer drum 2.

  (7) Next, as shown in FIG. 7, the tip of the workpiece w is aligned with the tip of the protective film piece f, the movable frame 26 is lowered, and the tip of the lower surface (front surface) of the workpiece w is the protective film piece f. The tip is elastically pressed and contacted with an appropriate force. At the same time, the adsorption of the film adsorption unit 12 is released.

  (8) Next, as shown in FIG. 8, the transfer drum 2 is rotated again in the winding direction, the carrier 22 is moved forward at a speed synchronized with the peripheral speed, and the protective film piece f is moved to the workpiece w. It is continuously transferred to the bottom surface.

  (9) When the transfer is completed, the transfer drum 2 further rotates and the film adsorbing portion 12 is moved to the origin position a. Further, the workpiece w with the protective film piece f attached is further sent to the front collection position UL and collected, and the emptied carrier 22 is lifted and returned to the rear workpiece supply section L, so that a new workpiece is obtained. Receive the supply of w.

  One pasting operation is completed as described above, and the above operations are sequentially repeated.

  In addition, the film cutting position in the said process (4), (5) is adjusted corresponding to the dimension (length) of the workpiece | work w.

  [Another Example]

  The present invention can also be implemented in the following forms.

  (1) The film feeding mechanism 1 for supplying the front end of the protective film F to the outer periphery of the transfer drum 2 is rotationally controlled in addition to the form using the suction block 7 that reciprocates at a predetermined stroke as described above. It is also possible to carry out in a form in which the protective film F is sandwiched between the feeding roller and the clamping roller and fed out.

  (2) It is also possible to provide film adsorbing portions 12 at a plurality of phases on the outer periphery of the transfer drum 2 and perform film transfer and pasting a plurality of times by one rotation of the transfer drum.

  (3) When film transfer and pasting is performed a plurality of times by one rotation of the transfer drum as described above, a plurality of carriers 22 that circulate in the work transfer mechanism 1 may be provided to shorten the work supply cycle.

  (4) When an electronic component or the like is mounted on the upper surface of the workpiece w and cannot be sucked and held, an open / close claw chuck mechanism may be used instead of the suction nozzle 27 in the workpiece transfer mechanism 1.

  (5) The film cutting mechanism 3 can also be implemented in such a form that the protective film F is cut by scanning a knife-type or disk-type cutter in the horizontal direction along the cradle 14.

  (6) In the film transfer process, it is possible to horizontally move the work w at the same position as the rotational peripheral speed while fixing the work w at the pressing position and rotating the transfer drum 2.

  (7) In the above embodiment, the protective film F is directly fed and cut and transferred. However, the protective film F is supplied to the film feeding mechanism 1 in a state where the protective film F is stuck and held on the release paper. It is also possible to peel off and remove only the protective film F into the transfer drum 2 for cutting.

It is a perspective view which shows the whole structure of the lamination apparatus of this invention. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process. It is explanatory drawing of a film sticking process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Film feeding mechanism 2 Transfer drum 3 Film cutting mechanism 4 Work transfer mechanism 7 Adsorption block 12 Film adsorption part F Protective film f Protective film piece w Workpiece

Claims (3)

A film feeding mechanism that feeds the tip of the tape-shaped protective film to a predetermined position;
A transfer drum that rotates by rotating and holding the protective film fed to a predetermined position on the outer peripheral surface;
A film cutting mechanism that cuts the protective film that is attracted and held on the transfer drum and wound up into pieces of protective film of a predetermined length;
With the workpiece pressed against the outer peripheral surface of the transfer drum, the protective film piece adsorbed and held on the transfer drum is moved relative to the drum tangential direction at a speed synchronized with the peripheral speed of the rotationally driven transfer drum. A laminating apparatus, comprising: a workpiece transfer mechanism for attaching and transferring to a workpiece.   The laminating apparatus according to claim 1, wherein the film feeding mechanism is configured to reciprocate a suction block for sucking and holding the protective film with a predetermined stroke. The laminating apparatus according to claim 1 or 2, further comprising a film adsorbing unit that adsorbs and holds a front end of the protective film supplied by the film feeding mechanism at a predetermined phase of the outer peripheral surface of the transfer drum.

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