JP2005178136A - Sandwich panel manufacturing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide sandwich panel manufacturing equipment constituted so as to prevent the leak of a liquid from the side part of a sandwich panel caused by the breakage of a side block. <P>SOLUTION: The sandwich panel manufacturing equipment is used for manufacturing the sandwich panel wherein a urethane foam 3 is held between a first steel sheet 1 positioned on an upper surface side and a second steel sheet 2 positioned on an undersurface side and equipped with a first slat conveyor 4 arranged on the upper surface side, a second slat conveyor 5 arranged on the undersurface side, first and second block conveyors 6 and 7 respectively arranged on both sides in the width direction of the sandwich panel and constituted by connecting a large number of blocks and the side belts 8 and 9 interposed between a large number of the blocks and the side parts of the sandwich panel. The block conveyors 6 and 7 are driven in a state that the side belts 8 and 9 are pressed to both side parts in the width direction of the sandwich panel in cooperation with the feed operation of the sandwich panel due to the first/second slot conveyors 4 and 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a production facility for producing a sandwich panel in which a foam is sandwiched between a first face material located on the upper surface side and a second face material located on the lower surface side.

  As such a sandwich panel, for example, a wall material for construction is manufactured by injecting urethane foam (foam) between a steel plate (first face material) and a steel plate (second face material). A first slat conveyor is provided above the steel plate, and a second slat conveyor is provided below the steel plate. With the sandwich panel sandwiched from above and below by the slat conveyor, the sandwich panel is conveyed and molded in the vertical direction (see, for example, Patent Document 1 below). This molded sandwich panel is conveyed in a heated atmosphere, and the foamed urethane foam is cured to form a building wall material.

Further, in order to form the sandwich panel in the width direction (end portion), a block transport mechanism is used on each side in the width direction. This block transport mechanism is a combination of a large number of side blocks, and the side blocks are pressed against the side portions of the sandwich panel to perform molding in the width direction. In this case, it is necessary to prevent liquid leakage of the foam from the side of the sandwich panel. for that reason. Paper is interposed between a number of side blocks and the sides of the sandwich panel. In other words, with the paper interposed, the side block is pressed against the side portion to form the width direction end portion.
Japanese Patent Laid-Open No. 8-336846 (Claims, FIG. 1)

  However, the side block is only pressed against the side portion of the sandwich panel via a thin paper, and the attachment portion is likely to be loose. If backlash of the side block attachment portion occurs, it may cause liquid leakage from the side portion. Also, due to the looseness of the side block mounting part, the molding accuracy when molding the side part of the sandwich panel deteriorates, and irregularities occur at the end of the product. Adversely affects when mating.

  The present invention has been made in view of the above circumstances, and the problem is that a sandwich panel that can prevent liquid leakage from the side of the sandwich panel due to backlash of the side block and eliminate unevenness at the end of the product. To provide manufacturing equipment.

In order to solve the above problems, a sandwich panel manufacturing facility according to the present invention comprises:
A manufacturing facility for manufacturing a sandwich panel in which a foam is sandwiched between a first face material located on the upper surface side and a second face material located on the lower surface side,
A first transport mechanism for vertical molding disposed above the first face material;
A second transport mechanism for forming in the vertical direction disposed below the second face material;
A first block conveying mechanism and a second block conveying mechanism for width direction molding, which are arranged on both sides in the width direction of the sandwich panel and in which a number of blocks are connected;
A belt interposed between the multiple blocks and the side of the sandwich panel;
In conjunction with the sandwich panel transport operation by the first and second transport mechanisms, the first and second block transport mechanisms are driven in a state where the belt is pressed against both sides of the sandwich panel in the width direction. It is characterized by this.

  The operation and effect of the manufacturing equipment with this configuration is as follows. The sandwich panel includes a first face material located on the upper surface side, a second face material located on the lower surface side, and a foam sandwiched between these face materials. A first transport mechanism is provided on the first face material side, and a second transport mechanism is provided on the second face material side. These first and second transport mechanisms cooperate to form the sandwich panel in the vertical direction while transporting the sandwich panel.

  On the other hand, first and second block transport mechanisms are arranged on both sides of the sandwich panel. This block transport mechanism is configured by connecting a large number of blocks. By pressing the large number of blocks against the side, molding in the width direction (end portion) is performed. And a belt is interposed between the side part of a sandwich panel, and many blocks. In conjunction with the transport operation by the first and second transport mechanisms, the movement of the numerous blocks and the belt is also interlocked.

  As described above, the side portion is configured to be pressed through the belt. The belt is usually made of an elastic material. Therefore, rather than pressing the block against the side portion through thin paper, the influence of the block mounting play can be reduced by using the belt. As a result, it is possible to provide a manufacturing facility for a sandwich panel that can prevent liquid leakage from the side of the sandwich panel due to loose mounting of the side block and can eliminate unevenness at the end of the product.

  As a preferred embodiment of the present invention, there is one in which a release treatment is applied to the surface of the belt corresponding to the side portion side of the sandwich panel.

  By performing the mold release treatment, it is possible to prevent the foam from adhering to the belt.

  Another preferred embodiment of the present invention is one in which a release paper is further interposed between the belt and the side portion of the sandwich panel.

  By interposing the release paper, it is possible to prevent the foam from adhering to the belt.

  In another preferred embodiment of the present invention, the belt has a thickness of 2.5 to 3.5 mm.

  When the thickness of the belt is less than 2.5 mm, there is a problem that the belt is easily stretched or the effect as a cushioning material is lowered, and when it exceeds 3.5 mm, there is a problem that the cost of the belt is increased. Therefore, it can shape | mold appropriately by using the belt of the thickness of the said range.

  According to still another preferred embodiment of the present invention, the belt moves in accordance with the conveying operation of the sandwich panel while being sandwiched between the plurality of blocks and the side portion of the sandwich panel. The one configured in the above.

  According to this configuration, there is no need to provide a dedicated drive mechanism for driving the belt, and the belt can be driven in accordance with the sandwich panel transport operation.

  As still another preferred embodiment of the present invention, the belt circulation path is set to be longer than the circulation paths of the plurality of blocks.

  The belt circulation path is configured separately from the circulation paths of a large number of blocks, and the circulation path is further lengthened to facilitate adjustment of the tension applied to the belt.

  A preferred embodiment of a sandwich panel manufacturing facility according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a manufacturing facility. FIG. 2 is a central cross-sectional view showing the configuration of the manufacturing facility.

  The sandwich panel according to the present invention is preferably used as a building wall material. In the sandwich panel, urethane foam 3 as a foam is sandwiched between a first steel plate 1 (first face material) and a second steel plate 2 (second face material). In order to form a sandwich panel, a first slat conveyor 4 (corresponding to a first transport mechanism) is disposed on the upper side of the first steel plate 1, and a second slat conveyor 5 ( Corresponding to the second transport mechanism). By sandwiching the sandwich panel between the first and second slat conveyors 4 and 5, molding is performed in the vertical direction. Each slat conveyor 4, 5 has a large number of slats 4 a, 5 a (strip-shaped plate material) attached to a chain. The upper and lower slat conveyors 4 and 5 are driven in a synchronized state by an electric motor (not shown).

  As shown in FIG. 2, a first block conveyor 6 (corresponding to a first block transport mechanism) and a second block conveyor 7 (corresponding to a second block transport mechanism) are arranged on both sides of the sandwich panel in the width direction. Yes. These block conveyors 6 and 7 are provided for molding the side portions of the sandwich panel. The block conveyors 6 and 7 have a large number of side blocks 6a and 7a attached to the chain. By pressing the side blocks 6a and 7a against the side portions of the sandwich panel, the side portions are molded. These block conveyors 6 and 7 are driven by an electric motor (not shown) and are driven in synchronization with the first and second slat conveyors 1 and 2 described above.

  A first side belt 8 is provided outside the circulation path of the first block conveyor 6. A second side belt 9 is also provided outside the circulation path of the second block conveyor 7. The circulation path of the first and second side belts 8 and 9 is set to be longer than the circulation path of the first and second block conveyors 6 and 7. In order to configure the circulation path of the first side belt 8, a plurality of guide rollers 8a are provided, and the second side belt 9 is also provided with a plurality of guide rollers 9a. By changing the positions of the guide rollers 8a and 9a, the tension of the side belts 8 and 9 can be adjusted.

  Next, details of the mechanism of the side portion of the sandwich panel will be described with reference to the plan view of FIG. 3 and the sectional view of FIG.

  As shown in FIG. 4, one side portion of the sandwich panel is formed in a concave shape, and the other side portion is formed in a convex shape. When used as a building wall material, the concave portion A and the convex portion B are fitted and used. The side block 6 a of the first block conveyor 6 has a shape and a size that fits into the recess A. Moreover, the side block 7a of the 2nd block conveyor 7 has a recessed part in which the convex part B fits. The side blocks 6a and 7a are manufactured by resin molding, preferably polyethylene. Of course, you may form with materials other than resin.

  The side blocks 6a and 7a are pressed against the side portions of the sandwich panel to mold the side portions, but are not pressed directly, but are pressed through the side belts 8 and 9. The material of the side belts 8 and 9 is not limited to a specific material, but for example, a laminate of urethane material and polyethylene is preferable. Polyethylene is a hard material, which ensures strength. Urethane is a soft material, and the urethane system is the belt surface.

  Moreover, the opening part D is formed in the both sides of a sandwich panel. From this opening D, it is necessary to prevent the urethane stock solution from leaking and adhering to the side blocks 6a, 7a and the side belts 8, 9. Therefore, the release paper 10 is interposed further inside the side belts 8 and 9. As shown in FIG. 2, the release paper 10 is configured to be pulled into both sides of the sandwich panel.

  As described above, the width direction end of the sandwich panel is pressed by the side blocks 6a and 7a via the release paper 10 and the side belts 8 and 9. Since the elastic side belts 8 and 9 are interposed, it is difficult for the side blocks 6a and 7a to be loosely attached. Further, even if there is a backlash of the side blocks 6a and 7a, it can be absorbed by the elastic deformation of the side belts 8 and 9, so that the adverse effects due to backlash can be eliminated. As a result, the molding accuracy of the side part of the sandwich panel can be increased. Further, by interposing the side belts 8 and 9, the sealing performance of the opening D can be improved by elastic deformation thereof.

  Since there is a possibility that the upper and lower ends of the side belts 8 and 9 cannot be covered with the release paper 10, it is preferable to apply a release material. Examples of the release material include a silicon release agent and a synthetic wax release agent. Moreover, it is preferable that the thickness of the side belts 8 and 9 shall be 2.5-3.5 mm. By setting the dimensions within this range, the above effects can be appropriately exhibited.

  According to the above configuration, the sandwich panel is sandwiched between the upper and lower slat conveyors 4 and 5, thereby forming in the vertical direction, and the block conveyors 6 and 7 on both sides in the width direction are formed in the width direction. The side belts 8 and 9 are not provided with a drive mechanism, and can move following the movement of the sandwich panel. Further, the release paper 10 is also not provided with a drive mechanism, and is drawn and pulled while being sandwiched between the side of the sandwich panel and the side belts 8 and 9. Even after the side belts 8 and 9 are separated from the sandwich panel, the release paper 10 sticks together with the sandwich panel. The sandwich panel is conveyed in a heated atmosphere and hardened foamed urethane foam to become a building wall material.

<Another embodiment>
The upper and lower face materials and foam constituting the sandwich panel are not limited to specific materials. Further, the sandwich panel to be manufactured is not limited to a specific application.

Perspective view showing configuration of sandwich panel manufacturing equipment Central cross-sectional view showing the structure of a sandwich panel manufacturing facility Enlarged view showing the relationship between the side block and the side of the sandwich panel Enlarged view showing details of the side of the sandwich panel

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st steel plate 2 2nd steel plate 3 Urethane foam 4 1st slat conveyor 5 2nd slat conveyor 6 1st block conveyor 6a Side block 7 2nd block conveyor 7a Side block 8 1st side belt 9 2nd side belt 10 Release paper

Claims (6)

A manufacturing facility for manufacturing a sandwich panel in which a foam is sandwiched between a first face material located on the upper surface side and a second face material located on the lower surface side,
A first transport mechanism for vertical molding disposed above the first face material;
A second transport mechanism for forming in the vertical direction disposed below the second face material;
A first block conveying mechanism and a second block conveying mechanism for width direction molding, which are arranged on both sides in the width direction of the sandwich panel and in which a number of blocks are connected;
A belt interposed between the multiple blocks and the side of the sandwich panel;
In conjunction with the sandwich panel transport operation by the first and second transport mechanisms, the first and second block transport mechanisms are driven in a state where the belt is pressed against both sides of the sandwich panel in the width direction. A manufacturing facility for sandwich panels.   2. The sandwich panel manufacturing apparatus according to claim 1, wherein a release process is performed on a surface of the belt corresponding to the side portion side of the sandwich panel.   3. The sandwich panel manufacturing facility according to claim 1, wherein a release paper is further interposed between the belt and the side portion of the sandwich panel.   The sandwich panel manufacturing equipment according to any one of claims 1 to 3, wherein the belt has a thickness of 2.5 to 3.5 mm.   2. The belt according to claim 1, wherein the belt is configured to move in accordance with a conveying operation of the sandwich panel while being sandwiched between the plurality of blocks and the side portion of the sandwich panel. The manufacturing apparatus of the sandwich panel of any one of 4.   6. The sandwich panel manufacturing facility according to claim 1, wherein a circulation path of the belt is set to be longer than a circulation path of the plurality of blocks.

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