JP2011245730A - Laminator and method for attaching diaphragm sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fix a diaphragm sheet by a simple method and to attach the diaphragm sheet without changing the flank shape of an upper chamber.SOLUTION: A laminator 1 includes the upper chamber 2, a lower chamber 3, a heater board 5 and a diaphragm sheet 6. An eccentric roller 11 and a lock mechanism 12 are provided at the flank of the upper chamber 2 and the diaphragm sheet 6 bent along the flank of the upper chamber 2 is fixed by being pressed with the eccentric roller 11. At this time when the bent diaphragm sheet 6 starts to drop by own weight, the diaphragm sheet 6 comes into contact with the eccentric roller 11 and automatically moves the lock mechanism 12 in a locking direction. Consequently, locking is performed even when a worker does not operate the lever 14 of the lock mechanism 12 and attachment of the diaphragm sheet 6 is easily performed.

Description

  The present invention relates to a laminating apparatus for laminating an object to be laminated using a diaphragm sheet and a method for attaching a diaphragm sheet.

  A laminating apparatus for manufacturing a solar cell module performs a laminating process on a laminated body by pressing the laminated body with a diaphragm sheet. Since the diaphragm sheet is used repeatedly, it needs to be replaced periodically.

  Several proposals have been made so that the diaphragm sheet can be easily attached and detached (see, for example, Patent Document 1).

  Patent Document 1 is characterized in that the diaphragm can be attached without providing an attachment frame for fixing the diaphragm sheet to the upper chamber. Specifically, the vicinity of the end of the diaphragm is bent along the side surface of the upper chamber, and the bent portion is pressed and fixed to the side surface of the upper chamber with a plurality of clamps.

JP 2008-307724 A

  In the case of Patent Document 1, the structure of the clamp is complicated, and it is necessary to provide a step on the side surface on the upper chamber side in accordance with the structure of the clamp, which may increase the cost of the apparatus. In addition, there is a problem in that workability is not good because the clamp must be operated and fixed while the diaphragm sheet is folded by hand with the diaphragm sheet folded.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a laminating apparatus and a diaphragm sheet that can securely fix the diaphragm sheet by a simple method and do not need to change the side shape of the upper chamber. An attachment method is provided.

In order to solve the above problems, in one aspect of the present invention, an upper chamber having a lower surface opened and a first exhaust inlet for exhaust and intake on the upper surface is provided;
A lower chamber having an upper surface opened and a second exhaust air inlet and outlet for exhaust and intake on the lower surface;
A heater panel installed in the lower chamber;
A diaphragm sheet attached to a lower surface side of the upper chamber, and a laminating apparatus comprising:
A plurality of eccentric rollers that are attached to a plurality of locations on the side surface of the upper chamber and that can be fixed near the end of the diaphragm sheet that is bent at the bottom edge of the upper chamber, and correspond to each of the plurality of eccentric rollers When the diaphragm sheet bent at the bottom edge of the upper chamber moves downward under its own weight, the vicinity of the end of the diaphragm sheet comes into contact with the eccentric roller, and the eccentric roller A laminating apparatus comprising: a plurality of locking mechanisms that rotate the eccentric roller in a locking direction so as to approach the side surface direction of the upper chamber.

In one aspect of the present invention, an upper chamber in which a lower surface side is opened and a first exhaust air intake port for exhaust and intake is provided on the upper surface side;
A lower chamber having an upper surface opened and a second exhaust air inlet and outlet for exhaust and intake on the lower surface;
A heater panel installed in the lower chamber;
A diaphragm sheet attached to a lower surface side of the upper chamber, and a diaphragm sheet attaching method for a laminating apparatus comprising:
A plurality of locks provided corresponding to each of a plurality of eccentric rollers attached to a plurality of locations on the side surface of the upper chamber and capable of fixing the vicinity of the end portion of the diaphragm sheet bent at the bottom edge of the upper chamber With each of the mechanisms operated in the unlocking direction, the vicinity of the end of the diaphragm sheet is pushed into the gap between the eccentric roller and the side surface of the upper chamber, and the diaphragm sheet moves downward under its own weight in this state. In doing so, the end portion of the diaphragm sheet is in contact with the eccentric roller to move the eccentric roller in the side surface direction of the upper chamber, and if necessary, the locking mechanism is operated in the locking direction to A diaphragm sheet mounting method is provided, wherein the diaphragm sheet is fixed by an eccentric roller.

  According to the present invention, the diaphragm sheet can be fixed with a simple structure capable of locking and unlocking the lock mechanism simply by changing the rotation direction of the eccentric roller, and the lock mechanism is held down while holding the diaphragm sheet when the diaphragm sheet is attached. Since it is not necessary to operate, the workability is improved. In addition, since it is not necessary to change the side shape of the upper chamber, the cost of the apparatus is not increased and the cost is effective.

Sectional drawing which shows the cross-section of the principal part of the lamination apparatus which concerns on one Embodiment of this invention. The enlarged plan view which shows an example of an eccentric roller and a locking mechanism. FIG. 3 is an exploded perspective view of the eccentric roller and the lock mechanism in FIG. 2. FIG. 3 is an exploded perspective view of the eccentric roller and the lock mechanism in FIG. 2. It is a figure which shows the arrangement | positioning location of an eccentric roller, Fig.5 (a) is a top view, FIG.5 (b) is a side view.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing a cross-sectional structure of a main part of a laminating apparatus 1 according to an embodiment of the present invention. The laminating apparatus 1 shown in FIG. 1 includes an upper chamber 2, a lower chamber 3, a heater panel 5, and a diaphragm sheet 6.

  The upper chamber 2 is open on the lower surface side, and a first exhaust air intake port 2a for exhaust and intake is provided on the upper surface side. The lower chamber 3 is open on the upper surface side, and a second exhaust air intake port 3a for exhaust and intake is provided on the lower surface side. In FIG. 1, one each of the first exhaust air intake port 2a and the second exhaust air intake port 3a are provided, but the number of these exhaust air intake ports is not particularly limited.

  A heater panel 5 is disposed in the lower chamber 3. The heater panel 5 is supported by a column 8 connected to the bottom surface of the lower chamber 3.

  When laminating the laminated body 7, the laminated body 7 is carried onto the heater panel 5, and then the upper chamber 2 is lowered to seal the inside of the upper and lower chambers 2 and 3. Next, after evacuating the upper and lower chambers 2 and 3, the atmosphere is introduced only into the upper chamber 2. As a result, the diaphragm sheet 6 expands downward, and the laminate 7 is pressed between the heater panel 5 and the diaphragm sheet 6. As a result, the chemical reaction of EVA (ethylene vinyl acetate) resin inside the laminate 7 is promoted and laminated.

  The technical feature of the present embodiment is that a plurality of eccentric rollers 11 provided at a plurality of locations on the side surface of the upper chamber 2 and a plurality of lock mechanisms that adjust the clearance between the eccentric roller 11 and the side surface of the upper chamber 2. 12 is provided.

  2 is an enlarged plan view showing an example of the eccentric roller 11 and the lock mechanism 12, and FIGS. 3 and 4 are exploded perspective views of the eccentric roller 11 and the lock mechanism 12 of FIG.

  As shown in these drawings, the lock mechanism 12 includes a shaft 13 that rotates integrally with the eccentric rotation shaft of the eccentric roller 11, a lever 14 that is attached near the end of the shaft 13, and the lever. And a biasing member 15 that biases 14 in the locking direction.

  The rotational axis of the eccentric roller 11 is provided at a position deviated (eccentric) from the central axis, and the shaft 13 of the lock mechanism 12 is fitted into this rotational axis. As shown in FIG. 4A, the eccentric roller 11 and the shaft 13 rotate integrally. As shown in FIG. 4A, a key 17 protruding from the outer peripheral surface of the shaft 13 is provided, and the rotation shaft of the eccentric roller 11 is also provided. A method is conceivable in which a convex portion 11a matching the shape of the key 17 is formed so that the eccentric roller 11 and the shaft 13 rotate integrally. Alternatively, as shown in FIG. 4B, a threaded hole 11 b is formed on the outer peripheral surface of the eccentric roller 11, and after inserting the shaft 13 on the rotation shaft of the eccentric roller 11, the hole 11 b Alternatively, a method of fixing the shaft 13 by screwing the hole set 18 may be employed.

  A pair of brackets 16 are attached to the side surfaces of the upper chamber 2 in association with the individual eccentric rollers 11. The pair of brackets 16 are attached to the side surfaces of the upper chamber 2 with an interval through which the corresponding eccentric roller 11 is rotatably inserted.

  One end of the urging member 15 is fixed to the bracket 16, and the other end of the urging member 15 is in contact with the lever 14. The biasing member 15 normally biases the lever 14 in the clockwise direction, so that the lever 14 is biased so as to rotate in the clockwise direction, that is, in the locking direction when nothing is operated. Is done.

  As can be seen from FIG. 2, when the lever 14 is operated in the clockwise direction, the rotational axis of the eccentric roller 11 is displaced from the central axis, so that the entire eccentric roller 11 moves to the right side. A gap between the eccentric roller 11 and the upper chamber 2 is narrowed. This is an operation in the locking direction, and the diaphragm sheet 6 bent from the bottom surface to the side surface of the upper chamber 2 is pressed by the eccentric roller 11 and fixed to the side surface of the upper chamber 2.

  On the other hand, when the lever 14 is operated counterclockwise, the entire eccentric roller 11 moves to the left, and as a result, the gap between the eccentric roller 11 and the upper chamber 2 is widened. This is an operation in the unlocking direction, and the diaphragm sheet 6 bent from the bottom surface to the side surface of the upper chamber 2 is not pressed by the eccentric roller 11, so that the diaphragm sheet 6 can be removed and attached.

  When the diaphragm sheet 6 is attached, an operation of pulling up the vicinity of the end of the diaphragm sheet 6 along the side surface of the upper chamber 2 in accordance with the position of each eccentric roller 11 is performed. In this state, the lever 14 is in the unlocked state, and the eccentric roller 11 does not fix the diaphragm sheet 6. Therefore, when the hand is released from the diaphragm sheet 6, the diaphragm sheet 6 moves downward due to its own weight. At this time, when the vicinity of the end of the diaphragm sheet 6 contacts the eccentric roller 11, the eccentric roller 11 rotates clockwise, and the lever 14 automatically moves in the locking direction. When the lever 14 moves in the locking direction, the gap between the eccentric roller 11 and the side surface of the upper chamber 2 is narrowed, so that the diaphragm sheet 6 is automatically pressed and fixed by the eccentric roller 11.

  Thus, in this embodiment, the operator needs to perform the operation in the unlocking direction of the lever 14 by himself / herself. However, even if the operator does not perform the operation in the locking direction by the weight of the diaphragm sheet 6, It has an excellent feature that it automatically locks. This simplifies the diaphragm mounting operation and reduces the burden on the operator.

  Depending on the urging force of the urging member 15, the weight of the diaphragm sheet 6, or the clearance between the eccentric roller 11 and the side surface of the upper chamber 2 in the unlocked state, the operator himself or herself may not operate the lever when installing the diaphragm sheet 6. It may be necessary to operate 14 in the locking direction. However, even in that case, since the diaphragm sheet 6 rotates the eccentric roller 11 in the locking direction and the urging member 15 also urges in the locking direction, the force for operating the lever 14 in the locking direction is reduced. Therefore, the operator can operate the lever 14 in the locking direction with a small force, and the workability of the operator is improved.

  FIGS. 5A and 5B are diagrams showing an example of the location where the eccentric roller 11 is installed. FIG. 5A is a top view and FIG. 5B is a side view. As illustrated, the eccentric rollers 11 are provided along each side surface of the rectangular laminating apparatus 1 at substantially constant intervals.

  Hereinafter, the steps of removing and attaching the diaphragm sheet 6 of the laminating apparatus 1 according to this embodiment will be described in order.

  First, at least one of the upper chamber 2 and the lower chamber 3 is moved upward or downward to widen the interval between the upper chamber 2 and the lower chamber 3. In this state, the lever 14 is operated in the unlocking direction in order to remove the diaphragm sheet 6 to be replaced. As a result, a gap between the eccentric roller 11 and the side surface of the upper chamber 2 is widened, and the diaphragm sheet 6 bent in the side surface direction of the upper chamber 2 is pulled out using this gap. In this operation, it is not necessary to operate all the levers 14 at the same time, and it is sufficient to gradually pull out the diaphragm sheet 6 by sequentially operating the individual levers 14 in the unlocking direction.

  As described above, since the lever 14 is urged in the locking direction by the urging member 15, when the lever 14 is moved in the unlocking direction, the lever 14 does not move in the locking direction without permission. It is necessary to pull out the diaphragm sheet 6 while holding it by hand. Alternatively, a fixing means for fixing the lever 14 in the unlocking direction may be attached to each lever 14.

  When all the levers 14 are operated in the unlocking direction to pull out the diaphragm sheet, the diaphragm sheet 6 is then taken out from between the upper chamber 2 and the lower chamber 3.

  Next, a new diaphragm sheet 6 is inserted between the upper chamber 2 and the lower chamber 3, and the upper chamber 2 and the lower chamber 3 are once brought close to each other to bring the upper chamber 2 into contact with the diaphragm sheet 6. And the position which bends the diaphragm sheet 6 to a side surface direction is decided, and a mark etc. are attached.

  Next, the distance between the upper chamber 2 and the lower chamber 3 is increased again, and for each individual eccentric roller 11, the vicinity of the end portion of the diaphragm sheet 6 is bent in the lateral direction of the upper chamber 2, and the eccentric roller 11 Push into the gap with the side of the upper chamber 2. When the diaphragm sheet 6 is pushed into the gap, the eccentric roller 11 rotates in the unlocking direction, so that the eccentric roller 11 maintains the unlocked state even if the lever 14 is not particularly operated. When the diaphragm sheet 6 once pushed down is lowered by its own weight, as described above, the diaphragm sheet 6 comes into contact with the eccentric roller 11 and the lever 14 automatically moves in the locking direction. The gap between the core roller 11 and the side surface of the upper chamber 2 is narrowed, and the diaphragm sheet 6 is fixed. If necessary, the operator himself may operate the lever 14 in the locking direction. In this case, since the lever 14 receives a force that moves in the locking direction due to the contact between the eccentric roller 11 and the diaphragm sheet 6 and the urging force of the urging member 15, the lever 14 moves in the locking direction with a small force. It can be operated and the burden on the operator is reduced.

  The operation of bending the diaphragm sheet 6 may be performed in order for each eccentric roller 11. However, when the diaphragm sheet 6 is folded, it is desirable that the diaphragm sheet 6 be pulled as far as possible so that the diaphragm sheet 6 cannot be wrinkled. Thus, conventionally, when the diaphragm sheet 6 is mounted, a large number of people pull all the way from the surroundings to remove the scissors. However, there is no need for such a large number of people to pull the scissors. The diaphragm sheet 6 can be attached so that it cannot be performed, and workability is improved.

  The lock mechanism 12 described above includes the biasing member 15 that biases the lever 14 in the locking direction in a normal state, but the biasing member 15 is not necessarily essential. As described above, when the diaphragm sheet 6 is going to be lowered by its own weight in the unlocked state, the diaphragm sheet 6 comes into contact with the eccentric roller 11 and the lever 14 is automatically and securely locked in the locking direction. The biasing member 15 may be omitted as long as it can move.

  In a state where the frictional force of the surface of the eccentric roller 11 is small, even if the diaphragm sheet 6 is pressed and fixed by the eccentric roller 11, the eccentric roller 11 rotates and the diaphragm sheet 6 may be displaced downward. There is. Therefore, the surface of the eccentric roller 11 may be processed to prevent slipping to increase the frictional force. Even when the diameter of the eccentric roller 11 is small, the contact area between the eccentric roller 11 and the diaphragm sheet 6 is reduced and the pressing force is weakened. Therefore, the diameter of the eccentric roller 11 corresponds to the weight of the diaphragm sheet 6. It is desirable to make it large.

  As described above, the laminating apparatus 1 according to this embodiment is provided with the eccentric roller 11 and the lock mechanism 12 on the side surface of the upper chamber 2, and the diaphragm sheet 6 bent along the side surface of the upper chamber 2 is provided with the eccentric roller 11. Press to fix. At this time, if the folded diaphragm sheet 6 is lowered by its own weight, the diaphragm sheet 6 comes into contact with the eccentric roller 11 and automatically moves the lock mechanism 12 in the lock direction. The twelve levers 14 can be locked without being operated, and the diaphragm sheet 6 can be easily attached. In some cases, it may be necessary for the operator to operate the lever 14 in the locking direction. However, the locking mechanism 12 receives a force in the locking direction due to the contact between the diaphragm sheet 6 and the eccentric roller 11. Since the urging member 15 for urging in the locking direction is provided therein, the operator can operate in the locking direction with a small force when the operator operates the lever 14 in the locking direction.

  Further, when removing the diaphragm sheet 6, if the lever 14 is operated in the unlocking direction, the gap between the eccentric roller 11 and the upper chamber 2 is widened, and the diaphragm sheet 6 can be easily removed.

  According to the present embodiment, when the diaphragm sheet 6 is attached, the diaphragm sheet 6 can be individually fixed with the eccentric rollers 11 provided on the outer peripheral side surface of the upper chamber 2 at regular intervals while being stretched. The work of pulling 6 becomes unnecessary and the workability is improved.

  Further, according to the present embodiment, when the diaphragm sheet 6 is attached to the upper chamber 2, it is not necessary to provide an attachment frame (frame), and a bolt tightening process for the attachment frame is not required, thereby further improving the workability. improves.

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Laminating apparatus 2 Upper chamber 3 Lower chamber 5 Heater panel 6 Diaphragm sheet 7 Laminated body 8 Support | pillar 11 Eccentric roller 12 Lock mechanism 13 Shaft 14 Lever 15 Energizing member 16 Diaphragm sheet 17 Key 18 Hole set

Claims (7)

An upper chamber having a lower surface open and a first exhaust port for exhaust and intake on the upper surface;
A lower chamber having an upper surface opened and a second exhaust air inlet and outlet for exhaust and intake on the lower surface;
A heater panel installed in the lower chamber;
A diaphragm sheet attached to a lower surface side of the upper chamber, and a laminating apparatus comprising:
A plurality of eccentric rollers that are attached to a plurality of locations on the side surface of the upper chamber and that can be fixed near the end of the diaphragm sheet that is bent at the bottom edge of the upper chamber, and correspond to each of the plurality of eccentric rollers When the diaphragm sheet bent at the bottom edge of the upper chamber moves downward under its own weight, the vicinity of the end of the diaphragm sheet comes into contact with the eccentric roller, and the eccentric roller A laminating apparatus comprising: a plurality of locking mechanisms that rotate the eccentric roller in a locking direction so as to approach a side surface direction of the upper chamber. The locking mechanism is
A shaft that rotates integrally with the eccentric rotation shaft of the eccentric roller;
A lever fixed to the shaft;
The laminating apparatus according to claim 1, further comprising an urging member that urges the lever in a locking direction.   When the lever is moved in the locking direction, the eccentric roller moves in a direction in which the gap between the eccentric roller and the side surface of the upper chamber is narrowed, and when the lever is moved in the unlocking direction, the gap is The laminating apparatus according to claim 2, wherein the laminating apparatus moves in a spreading direction.   When the lever is moved in the unlocking direction, the size of the gap is adjusted so that the diaphragm sheet disposed in the gap contacts the eccentric roller when moving downward due to its own weight. The laminating apparatus according to claim 3. A pair of brackets provided corresponding to each of the plurality of eccentric rollers, and attached to the side surface of the upper chamber with an interval to rotatably insert the corresponding eccentric roller;
The laminate according to any one of claims 2 to 4, wherein one end of the biasing member is connected to at least one of the pair of brackets, and the other end of the biasing member is engaged with the lever. apparatus.   The laminating apparatus according to any one of claims 1 to 5, wherein the plurality of eccentric rollers and the plurality of locking mechanisms are arranged at predetermined intervals on a side surface of the entire upper chamber. An upper chamber having a lower surface open and a first exhaust port for exhaust and intake on the upper surface;
A lower chamber having an upper surface opened and a second exhaust air inlet and outlet for exhaust and intake on the lower surface;
A heater panel installed in the lower chamber;
A diaphragm sheet attached to a lower surface side of the upper chamber, and a diaphragm sheet attaching method for a laminating apparatus comprising:
A plurality of locks provided corresponding to each of a plurality of eccentric rollers attached to a plurality of locations on the side surface of the upper chamber and capable of fixing the vicinity of the end portion of the diaphragm sheet bent at the bottom edge of the upper chamber With each of the mechanisms operated in the unlocking direction, the vicinity of the end of the diaphragm sheet is pushed into the gap between the eccentric roller and the side surface of the upper chamber, and the diaphragm sheet moves downward under its own weight in this state. In doing so, the end portion of the diaphragm sheet is in contact with the eccentric roller to move the eccentric roller in the side surface direction of the upper chamber, and if necessary, the locking mechanism is operated in the locking direction to A method for attaching a diaphragm sheet, comprising fixing the diaphragm sheet with an eccentric roller.

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