JP2009012796A - Slip sheet laying method and slip sheet laying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slip sheet laying method and a slip sheet laying device in which without damaging a slip sheet, the slip sheet can be smoothly laid between panel materials to be stacked, and the device can be made compact and functionally excellent. <P>SOLUTION: The method is characterized by being composed of (a) a step for placing a panel material P1 on a slip sheet S, (b) a step for pressing the slip sheet S outside the end Pa of the panel material P1, (c) a step for folding the slip sheet S so as to wrap the panel material P from the pressed end Pa side, and a step for placing the next panel material P2 on the slip sheet S. The method is characterized by laying the slip sheet S between the panel materials P1, P2,... Pn by repeating the steps (a)-(d). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an interleaving paper laying method and an interleaving paper laying apparatus in which interleaving paper is provided between panel materials when stacking panel materials.

  Various types of panel materials exist, and one example is a sandwich panel. This sandwich panel is made of a container-shaped outer surface material made of a surface material, a back material, and a frame material interposed between the surface material and the back material, and the surface material and the back material are compressed by a press. It is manufactured by injecting a rigid polyurethane foam foam concentrate solution into a space formed inside the material from an injection port formed in the frame material, and foaming and curing (for example, Non-Patent Document 1 and Patent Document 1). reference). This sandwich panel is used as a heat insulating material in a freezer / refrigeration warehouse that requires a severe cold-resistant environment as high as −30 ° C., or an environmental test room that creates an environment below freezing point and high temperature.

  The sandwich panels are stacked or stored or transported in a predetermined number. Usually, when sandwich panels are stacked, a slip sheet (for example, a thin polyester sheet) is laid between the panels for product protection.

  For example, a method of laying a slip sheet between panels as shown in FIGS. Specifically, as shown in FIG. 4A, the panel material 20 is placed on the interleaf paper 10, and the interleaf paper roll 11 is conveyed in the direction of the arrow as shown in FIG. 4B. A slip sheet is laid on the panel material 20, and the next panel material is stacked on the slip sheet to lay the slip sheet between the panel materials, and then the panel material 20 is mounted as shown in FIG. A method is known in which the slip sheet roll 11 is folded back to the panel member 20 side after being placed and horizontally moved to a predetermined stop position to eliminate the slack of the slip sheet 10 at the folded portion.

  Further, as an automated apparatus for laying interleaving paper, for example, a cushioning material laying apparatus as shown in FIGS. 5A and 5B is known. This buffer material laying device is a rail installed parallel to the longitudinal direction of the mounting table 31a on which rectangular panel materials P cut into a predetermined size and fed are lifted and stacked one by one by the transfer means T. 31. The buffer material S mounted in a coiled state on 31 is sent out, and the buffer material supply device 32 that cuts the sent buffer material S by a predetermined length and the buffer material supply device 32 sends out the buffer material S. The buffer material drawing device 3 for gripping and pulling out the buffer material S is provided so as to be movable, and the transfer means T on which the panel material P is placed on the placement table 31a is predetermined from the position above the placement table 31a. When the placement sensor detects that it has moved by the distance, the center in the longitudinal direction of the panel material P placed after the cushioning material drawing device 33 grips the cushioning material S supplied from the cushioning material supply device 32. The cushioning material supply device 32 and the cushioning material drawing device 33, which have been positioned on the adjacent rail 31, run on the rail 31 in a direction away from each other, and the cushioning material S is pulled out on the panel material P placed. When both devices reach a predetermined position, the buffer material S is cut and the buffer material drawing device 33 opens the grip of the buffer material S, and thereafter controls both devices to return to their original positions. (For example, refer to Patent Document 2).

Keiji Iwata "Polyurethane Resin Handbook", pp. 238-239, Nikkan Kogyo Shimbun, September 25, 1987 JP 2004-98320 A JP 2004-90985 A

However, the above-described conventional slip sheet laying method or slip sheet laying apparatus has the following problems.
(1) Many automatic interleaving paper laying apparatuses are configured to cut the cushioning material (interleaf paper) every time the panel material is laid, like the cushioning material laying apparatus shown in FIGS. 5 (A) and 5 (B). The apparatus is complicated and it is difficult to avoid the apparatus from becoming large.
(2) Moreover, when using the method of laying the slip sheet on the panel material while continuously supplying the slip sheet from the slip sheet roll as shown in FIGS. 4A to 4C, the slip sheet roll is reciprocated. The panel material will be placed on the panel, but when laying the interleaf on the panel, the positional relationship between the starting point of the interleaf roll and the edge of the panel material is constant, and the interleaf length is constant. There was a problem that it was difficult to make.
(3) Furthermore, when the interleaf paper roller is moved, the interleaf paper may be damaged at the corners of the edge of the panel material. Similarly, when the panel transport means after the panel material is placed moves There was a risk of catching and damaging the paper.

  Accordingly, an object of the present invention is to lay a slip sheet smoothly between panel sheets to be stacked without damaging the slip sheet, and to provide a compact and functionally superior slip sheet laying method and slip sheet laying. To provide an apparatus.

  As a result of intensive studies to solve the above-mentioned problems, the present inventor has found that the above object can be achieved by the following slip-sheet laying method and slip-sheet laying apparatus, and has completed the present invention.

That is, the present invention is a method for laying a slip sheet in which a slip sheet is provided between the panel materials when stacking the panel materials,
(A) placing one panel material on the interleaving paper;
(B) a step of pressing a slip sheet outside the edge of the panel material;
(C) a step of folding the slip sheet so as to wind up the panel material from the pressed end side;
(D) placing the next panel material on the slip sheet, and laying the slip sheet between the panel materials by repeating the steps (a) to (d).

The present invention also provides a panel lifting means for lifting the panel material,
Panel transfer means for transferring the lifted panel;
A rotation driving means for rotating the slip sheet roll;
Horizontal driving means for driving the slip sheet roll so as to be horizontally movable;
A slip sheet laying device comprising slip sheet pressing means for pressing slip sheets outside the edge of the panel material placed on the slip sheet,
When stacking the panel material, the panel lifting means and the panel transfer means are controlled so that the panel is placed on the disposed slip sheet, and the slip sheet is pressed so as to press the slip sheet outside the end of the panel material. Control the presser means, control the horizontal drive means to wind the panel material from the pressed end side, move the interleaf paper roll, and control the rotary drive means to fold the interleaf paper, and these A slip sheet is laid between the panel members by repeating the above control operation.

  As described above, slip sheets play an important role in the loading of panel materials, while improvements have been sought in several items for the laying operation. In the above configuration, the present invention has a positional relationship of the pressed slip sheet with respect to the placed panel material by folding the slip sheet so as to wind the panel material while pressing the slip sheet outside the edge of the panel material. As a result, the slip of the folding point of the slip sheet, which was likely to occur during horizontal movement by folding the slip sheet roll, was eliminated, and breakage of the slip sheet could be prevented. In other words, the interleaf can be laid on the panel material with good reproducibility by winding the end portion of the placed panel material with the interleaf paper from the pressed position. In addition, the slip sheet can be sent out and laid on the panel material while tension is applied to the end facing the end of the roll. Therefore, the curl state of the slip sheet fed from the slip sheet roll is suppressed as much as possible. The slack that has occurred on the paper can be eliminated. As a result, it is possible to significantly reduce the processing time for laying the slip sheet, to smoothly lay the slip sheet without damaging it, and to reduce the horizontal movement distance of the slip sheet roll as much as possible. A laying device can be provided.

  The present invention is the above-described slip sheet laying device, in which the slip sheet pressing portion of the slip sheet pressing means is disposed at both ends of the panel lifting means, and on the contact surface of the slip sheet pressing section with the slip sheet. A roller is provided.

  When laying interleaving paper between the stacked panel members, it is preferable that the interleaving paper is evenly positioned at both ends of the panel surface. In addition, since the slip sheet pressing portion of the slip sheet pressing means presses the contact surface with the slip sheet, it is preferable that the slip sheet pressing portion does not apply a load to the slip sheet. The present invention realizes that the interleaving paper pressing means of the interleaving paper pressing means is pressed at both ends of the panel lifting means to push the interleaving paper evenly and reproducibly when the panel material is loaded. By providing a roller on the contact surface with the slip sheet, it has become possible to prevent damage without imposing a load on the slip sheet.

  Embodiments according to the present invention will be described in detail with reference to the drawings. Here, a slip sheet comprising panel lifting means and panel transport means for transporting the “panel material”, rotation driving means for the slip sheet roll for laying the “slip sheet”, horizontal drive means, and slip sheet pressing means. Based on laying equipment. When stacking the panel material, the panel lifting means and the panel transfer means are controlled so that the panel material is placed on the placed slip sheet, and the slip sheet is pressed so as to press the slip sheet outside the edge of the panel material. Control the paper pressing means, move the interleaf roll to control the horizontal driving means to wind the panel material from the pressed end side, and control the rotation driving means to fold the interleaf, and these A slip sheet is laid between the panel members by repeating the above control operation.

<Example of basic configuration of slip sheet laying apparatus according to the present invention>
FIG. 1 is a schematic view illustrating a slip sheet laying apparatus (hereinafter referred to as “the present apparatus”) according to the present invention. This apparatus includes a panel lifting means 1 for lifting the panel material P, a panel transferring means 2 for transferring the lifted panel material P, a rotation driving means 4 for rotationally driving the interleaf paper roll 3, and an interleaf paper roll 3. Horizontal driving means 5 that is driven so as to be horizontally movable, and slip sheet pressing means 6 that presses the slip sheet S outside the end portion Pa of the panel material P placed on the slip sheet S are provided. In the above configuration, the interleaf sheet S is folded back so as to enclose the panel material P while pressing the interleaf sheet S outside the end portion Pa of the panel material. Thus, a functionally excellent slip-sheet laying device can be configured. Hereinafter, the drive system and control system of the panel material P, the slip sheet S, and the slip sheet laying device will be described.

  The panel material P can be applied to a mat or board having a predetermined strength and elasticity, such as a hard polyurethane board as described above. Although a raw material is not specifically limited, The panel material P which consists of glass fiber, carbon fiber, a metal fiber, an inorganic fiber, a polymer fiber etc. can be mentioned. The thickness is in the range of 5 to 50 mm, usually about 10 to 30 mm. The width is in the range of 500 to 2,000 mm, usually about 1,000 to 1,500 mm, and the length is short and in the range of 1,000 to 10,000 mm, usually about 2,000 to 5,000 mm. The scale is in the range of 10,000 to 50,000 mm, usually about 10,000 to 20,000 mm.

  The interleaf paper S is, for example, decorative paper, kraft paper, preferably paper such as resin (eg, polyethylene) laminated kraft paper, and particularly preferably kraft paper laminated with a crepe-like metal foil, or a plastic sheet (polypropylene, It is preferable to use a carbonate or polyvinyl chloride). Moreover, it is also possible to use fibers, such as a nonwoven fabric. The thickness is in the range of 0.05 to 5 mm, usually about 0.5 to 0.8 mm, for example.

  The panel lifting means 1 has a plurality of suction cups 1a as shown in FIGS. 2A and 2B, for example, in order to ensure the flatness of the panel material P when the panel material P is lifted. It is preferable to have a function of lifting the entire material P in a state with little distortion. The suction cup part 1a can mention what has the function connected to a suction pump (not shown), for example, and can be hold | maintained in the state grasped by the suction force with respect to the panel material P. A cylinder portion 1b is preferably provided on the upper part of the panel lifting means 1 so that the panel material P can be lifted and unloaded while the panel material P is held, so that the panel material P can be smoothly loaded. . The panel material P held by the panel lifting means 1 is transferred by the panel transfer means 2 to which the upper end of the cylinder portion 1b is connected.

  Moreover, it is preferable to provide the slip sheet pressing means 6 for pressing the slip sheet S outside the end portion Pa of the panel material P placed on the slip sheet S on both sides of the plate portion 1 c of the panel lifting means 1. The interleaving paper S is folded on the panel material P with good reproducibility by folding the interleaving paper S so as to enclose the panel material P while holding the interleaving paper S outside the end portion Pa of the panel material P by the interleaving paper pressing means 6. The slip sheet S can be prevented from being damaged. Further, it is preferable that a roller 6b is provided on the contact surface of the slip sheet pressing portion 6a of the slip sheet pressing means 6 with the slip sheet. The slip sheet S can be laid smoothly without being damaged. However, the slip sheet pressing means 6 does not necessarily have to be integrated with the panel lifting means 1 and has a function of stably pressing the slip sheet S on the panel material P placed under certain conditions. It may be a separate body if any.

  Here, the slip sheet holding means 6 needs to be provided with a roller 6b in contact with the slip sheet S outside the end portion Pa of the panel material P. On the other hand, as shown in FIG. It is preferable to have a curved arm portion 6c as exemplified in B).

  Further, the roller 6b is not particularly limited, but from the viewpoint of uniformly applying a predetermined pressing force to the slip sheet S and not applying a large load, the roller 6b is configured as illustrated in FIG. A movable cylindrical body is preferred. Further, from the viewpoint of preventing breakage of the slip sheet S, a material that is flexible and has a predetermined elasticity is preferable. Specific examples include a urethane roll using a urethane-based foam and a rubber roll using various rubbers.

  On the other hand, the slip sheet S is supplied from the slip sheet roll 3. The supply amount of the slip sheet S is adjusted by controlling the rotation speed by the rotation driving means 4 that rotationally drives the slip sheet roll 3. The supply amount or remaining amount of the slip sheet S can be automatically managed by monitoring the outer diameter of the slip sheet roll 3. For example, it can be obtained by calculating detection information detected by a pulse generator (not shown) such as a non-contact sensor (not shown) or a rotary encoder. As the rotation drive means 4, for example, an electric drive motor provided so as to be interlocked with a rotation center axis of a mechanism that allows the interleaf sheet roll 3 to rotate can be exemplified.

  Further, the slip sheet S is preferably laid on the panel material P with a predetermined tension in order to prevent the looseness and the repellency of wrinkles. That is, it is preferable to use tension means (not shown) so as to apply tension to the interleaf paper roll 3, and as the tension means having such a function, for example, rotation of a mechanism that makes the interleaf paper roll 3 rotatable. Examples thereof include an air clutch and an electromagnetic clutch installed on the central shaft.

  In this apparatus, the slip sheet roll 3 can be moved in the horizontal direction by the horizontal driving means 5. That is, as shown in FIG. 1, the horizontal driving means 5 has a function of driving the slip sheet roll 3 so as to be horizontally movable. For example, an electromagnetic motor, an electromagnetic motor with an electromagnetic brake, or the like is used as a drive source of the horizontal movement mechanism. Examples of the horizontal movement mechanism include a rack and pinion mechanism.

  When the end of the panel material P placed on the slip sheet S is wound with the slip sheet S, the horizontal driving means is controlled so as to horizontally move the slip sheet roll 3 to a predetermined position. At this time, it is preferable to control the rotation means so that the slip sheet roll 3 is initially rotated in the winding direction together with the horizontal movement control, and to control the tension means so as to apply a predetermined tension. While suppressing the curled state of the slip sheet S sent out from the slip sheet roll 3 as much as possible, it is possible to eliminate slack in the slip sheet S. Furthermore, it is preferable to control the feeding speed from the interleaf sheet roll 3 so as to maintain such tension after a horizontal movement for a predetermined distance. Such control may be constituted by hardware such as a CPU, a main memory, a bus, and a ROM and a software program, or may be constituted by firmware.

  As described above, the panel lifting means 1 and the panel transfer means 2 are controlled for the panel material P, and the slip sheet pressing means 6, the horizontal drive means 5 and the rotation drive means 4 are controlled for the slip sheet S, and these controls are performed. By repeating the operation and laying the slip sheet S between the panel materials P, the slip sheet S can be smoothly laid without being damaged, and the stacked panel material P can be protected. Each control value at this time is set according to the length of the panel material P, the type of the slip sheet S (characteristics such as thickness and elasticity), and the outer diameter of the slip sheet roll 3.

<Method of laying slip paper using this device>
Next, the interleaf laying method of the present invention using the present apparatus having the above-described configuration will be described with reference to FIGS. 3A and 3B. When stacking the panel material P, the following (a) step of placing the panel material P1 on the slip sheet S (b) step of pressing the slip sheet S outside the end Pa of the panel material P1 (c) pressed The step (d) of turning back the interleaf paper S so as to wind the panel material P1 from the end Pa side includes the step of placing the next panel material P2 on the interleaf paper S, and repeating steps (a) to (d). Thus, the slip sheet can be smoothly laid between the panel materials P1, P2,... Pn without damaging the slip sheet S. Here, it is assumed that the panel materials to be placed are P1, P2,.

(A) Step of placing panel material P1 on interleaving paper S First, as shown in FIG. 3A (a-1), the panel material P1 transferred by the panel transport roller 2a is held by the suction cup 1a. It is held by the upper means 1 and lifted from the panel transport roller 2a. At this time, the slip sheet S is laid on the pallet 7 disposed on the side of the panel transport roller 2a. Next, as shown in FIG. 3A (a-2), after the panel material P1 is transferred onto the slip sheet S laid together with the panel lifting means 1 by the panel transfer means 2 (not shown), The cylinder portion 1b provided in the panel lifting means 1 is driven and placed on the slip sheet S. After the panel material P1 is placed, the suction cup portion 1a is released from suction, and the holding of the panel material P1 by the panel lifting means 1 is canceled.

(B) Step of pressing the slip sheet S outside the end portion Pa of the panel material P1 In this apparatus, the panel lifting means 1 provided with the slip sheet pressing means 6 on both sides of the plate portion 1c is used, and FIG. As shown in b), the slip sheet S outside the end portion Pa of the panel material P1 can be pressed by the slip sheet pressing means 6 by placing the panel material P1. At this time, the interleaf paper roll 3 is waiting at a predetermined position. This position is set by the length of the panel material P1, the type (characteristic) of the interleaf paper S, and the outer diameter of the interleaf paper roll 3.

(C) The process of turning back the slip sheet S so as to wind up the panel material P1 from the pressed end Pa side. The panel lifting means 1 that has been disconnected from the panel material P1 is shown in FIG. 3A (c-1). As described above, the sheet is transferred from the pallet 7 side to the panel transport roller 2a by the panel transfer means 2 (not shown). As shown in FIG. 3B (c-2), the slip sheet S pressed by the slip sheet pressing means 6 has a pressing shape on the outside of the end portion Pa of the panel material P1 placed thereon. The panel material P1 is folded back along the cross-sectional shape of the panel material P1. At this time, the slip sheet roll 3 is moved from the predetermined position to the panel material P1 side at a predetermined speed by the horizontal driving means 5 (not shown), and at the same time, the slip sheet S is maintained at the predetermined tension as described above. In addition, by controlling the rotational driving means 4 (not shown) and adjusting the feeding (including winding) speed of the interleaf paper roll 3, it is possible to lay the interleaf paper S without bending or wrinkling. By preventing the slack portion from being generated, it is possible to significantly shorten the time for horizontally moving the interleaf paper roll 3 and the time for winding the panel material in a substantially L shape. On the panel transport roller 2a side, similarly to the above (a-1), the newly transferred panel material P2 is held by the panel lifting means 1.

(D) Step of placing next panel material P2 on interleaving paper S Next, as shown in FIG. 3B (d-1), the panel material P2 held by the panel lifting means 1 is a panel transport roller. It is lifted from 2a and placed on the panel material P1 through the laid slip sheet S. At this time, the slip sheet roller 3 is moved in the direction opposite to that in FIG. 3A (b), and the slip sheet S at the end Pb on the opposite side of the panel material P2 is pressed by the slip sheet pressing means 6. After that, as shown in FIG. 3B (d-2), the panel lifting means 1 on which the panel material P2 is placed cancels the holding of the panel material P2, moves to the panel transport roller 2a side, and at the same time, combines again. The paper roller 3 is reversed and the slip sheet S is laid on the panel material P2. At this time, the timing and position of stopping and reversing of the interleaf paper roller 3 are determined based on the length of the panel materials P1 and P2, the position of the panel materials P1 and P2 and the position of the interleaf paper roll 3 and the end of the panel materials P1 and P2. The distance between the part Pa or Pb and the center of the slip sheet roll 3 is calculated, for example, by the value of “(distance between the end part Pa or Pb and the center of the slip sheet roll 3) − (slip sheet roll radius)”. The time point when the paper roll 3 moves horizontally can be set.

  By repeating these steps (a) to (d), as shown in FIG. 3B (d-3), a plurality of panel members P1, P2,. The paper S can be loaded while being protected. At this time, the interleaf roll 3 can be configured to be movable in the vertical direction depending on the number n of the panel materials Pn to be stacked, and this vertical movement process can be provided according to the number n of the stacked panel materials Pn.

Schematic illustrating a slip sheet laying apparatus according to the present invention Explanatory drawing which illustrates the panel lifting means used for the slip sheet laying apparatus according to the present invention Explanatory drawing which illustrates the process of the slip sheet laying method of this invention using this apparatus. Explanatory drawing which illustrates the process of the slip sheet laying method of this invention using this apparatus. Explanatory drawing of interleaving paper laying method according to the prior art Explanatory drawing of automatic interleaving paper laying device according to the prior art

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel lifting means 1a Suction cup part 1b Cylinder part 2 Panel transfer means 3 Interleaf roll 4 Rotation drive means 5 Horizontal drive means 6 Interleaf presser means 6a Interleaf presser part 6b Roller 6c Arm part 7 Palette P Panel material Pa, Pb Edge S slip sheet

Claims (3)

When stacking panel materials, a slip paper laying method for providing slip sheets between the panel materials,
(A) placing one panel material on the interleaving paper;
(B) a step of pressing a slip sheet outside the edge of the panel material;
(C) a step of folding the slip sheet so as to wind up the panel material from the pressed end side;
(D) placing the next panel material on the interleaving paper, and laying the interleaving paper between the panel materials by repeating the steps (a) to (d). Laying method. A panel lifting means for lifting the panel material;
Panel transfer means for transferring the lifted panel;
A rotation driving means for rotating the slip sheet roll;
Horizontal driving means for driving the slip sheet roll so as to be horizontally movable;
A slip sheet laying device comprising slip sheet pressing means for pressing slip sheets outside the edge of the panel material placed on the slip sheet,
When stacking the panel material, the panel lifting means and the panel transfer means are controlled so that the panel is placed on the disposed slip sheet, and the slip sheet is pressed so as to press the slip sheet outside the end of the panel material. The pressing means is controlled, the horizontal driving means is controlled so as to wind up the panel material from the pressed end side, the interleaf roll is moved, the rotational driving means is controlled so that the interleaf is folded, and these A slip sheet laying apparatus, wherein a slip sheet is laid between panel materials by repeating control operations.   The interleaf presser portion of the interleaf presser means is disposed at both ends of the panel lifting means, and a roller is provided on a contact surface of the interleaf presser portion with the interleaf paper. Slip paper laying equipment.

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