JPH0217699Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a device for folding a sandwich panel, and more specifically, the invention relates to a folding device for a sandwich panel.More specifically, the invention relates to a folding device for a sandwich panel. A device for folding a sanderch panel that bends the sanderch panel toward the V-shaped groove by using a V-shaped bending groove formed on one of the front and back surfaces of the sanderch panel. It is.

[Prior Art] As a heat insulating panel used in general prefabricated refrigerators and the like, a sandwich panel made of a pair of aluminum surface plates filled with a heat insulating core material such as polyurethane foam is widely used. In this case, in order to obtain a corner panel, a V-shaped groove in cross section is formed from one side of the panel leaving the surface plate on the other side, and then the panel surfaces on both sides of the V-shaped groove are pressed. The method of bending the surface plate on the other side along the V-shaped groove is generally used, but the bending corners are rounded, which has the disadvantage of causing problems when connecting to other panels. .

Therefore, as a method to improve the above-mentioned drawback, two metal bending guide plates are welded in advance to the surface of the other surface plate to be bent in the sandwich panel with the planned bending line in between, and After forming the character-shaped groove, the surface plate on the other side is bent at an acute angle along the gap between two bending guide plates, or the back surface of the surface plate to be bent is pre-aligned with the planned bending line. A single metal plate is welded together, and at the same time as the V-shaped groove is formed, the metal plate is divided into two bending guide plates, and then the metal plate is welded along the gap between the divided bending guide plates. A method has been proposed in which the surface plate on the other side is bent at an acute angle (see Japanese Utility Model Publication No. 55-17107), and a V-shaped groove is formed in the sanderch panel, and the V-shaped slope of this groove is , a bending guide plate made of a synthetic resin plate bent in a V-shape with its valleys formed into a thin bendable part is joined, and other parts are attached along the bendable part of the bending guide plate. A method is known in which the surface plate of a surface is bent at an acute angle.

[Problems to be solved by the invention] However, since all of the above conventional methods involve attaching a bending guide plate or a metal plate to the panel, the number of structural members increases, and the weight increases.
Moreover, since the number of processing steps increases, there is a drawback that productivity cannot be improved. Furthermore, the former two had the disadvantage that the heat insulation properties of the panels were reduced. Therefore, as a means to eliminate these drawbacks, the applicant has arranged a plurality of rotating disks and drum-shaped rollers in series that face each other, and sequentially bends the sanderch panel along a V-shaped bending groove. In this bending device, it is difficult to center the disk and the drum-shaped roller, and if the centering is not aligned, multiple ridges will be formed at the corners of the sanderch panel. There was a risk that dimensional accuracy would deteriorate, and high quality could not be maintained in some cases.

[Means for Solving the Problems] This invention was made with the intention of solving the above problems, and as a means for solving the above technical problems, a sandwich panel which is bent and processed is developed. A pair of conveyors pivotally supported at symmetrical positions with respect to the feeding direction so as to be displaceable in opposite directions, an insertion bending plate and a receiving mold member disposed facing each other on the rear side of the conveyors in the feeding direction, and the conveyor section. and a conveying means for conveying the sanderch panel at the conveyor, and the folding of the sanderch panel is made such that the intersection of the inclination angles formed by the conveyors substantially coincides with the lower end of the insertion folding plate or the upper end of the receiving mold member. It is intended to provide a bending device.

In the sanderch panel folding device of this invention, the conveyor is composed of a plurality of rollers arranged in parallel, including a drive roller, and is supported by a cylinder device so as to be movable in opposite directions. Further, the insertion bending plate is composed of a disc that is pivotally connected to the main body of the device, and in this case, the receiving mold member is composed of a drum-shaped roller that is pivotally mounted to the main body of the device. The lower end of the disk is brought close to the center of the recess. Alternatively, the insertion bending plate is a rectangular plate-shaped bending plate mounted on the main body of the device so as to be movable up and down, and in this case, the receiving mold member has a V-shaped cross section close to the lower end of the rectangular plate-shaped bending plate. Consists of a grooved type with. Further, the conveying means includes two sprockets disposed at a feeding front portion between the pair of conveyors and immediately in front of the receiving mold member;
It consists of a conveyor hook attached to a chain that spans these sprockets.

[Effect] The above technical means works as follows.

After the sanderch panels are conveyed onto the conveyor by the conveying means, the conveyors are displaced in mutually opposing directions by the cylinder device, thereby bending the panels at a desired angle. The panel is conveyed by the conveyance means to the insertion folding plate and the receiving mold member, and the corners of the panel are accurately bent in the insertion folding plate and the receiving mold member.

[Example] An example of this invention will be described below based on the drawings.

FIG. 1 shows a perspective view of the folding device of this invention. The folding device of this invention consists of a pair of pivots supported at symmetrical positions with respect to the feeding direction of the sanderch panel P so as to be movable in opposite directions. conveyor 1
0, the insertion bending plate 30 and the receiving mold member 40 which are disposed facing each other on the rear side in the feeding direction of the conveyor 10, and the conveying means 50 which conveys the sand beach panel P between the conveyor 10. The main parts are configured.

The conveyor 10 is composed of a plurality of rollers 13 and 14 arranged in parallel along the longitudinal direction of the upper part of a rectangular frame 12 which is pivotally connected to the main body (not shown) via a pivot shaft 11. , one of which is constituted by a drive roller 14. In this case, the drive rollers 14 are arranged every other time and are of an independent drive system that includes a built-in motor (not shown) connected to a power source 15 via a lead wire 16, but the drive rollers 14 are not necessarily driven independently. It is not necessary to use a drive system, and a drive system using a normal belt or chain may be used. Also,
The rectangular frame body 12 constituting the conveyor 10 is pivoted along the conveying direction, that is, the longitudinal direction, of the panel P to be processed, so that the symmetrical conveyors 10 can be displaced in the direction facing each other, and the rectangular frame body 12 has a rectangular shape. A plunger 61 of a cylinder device 60 such as a hydraulic cylinder that controls the displacement of the conveyor 10 is pivotally mounted on the outside of the frame 12 with a pin 62 .
In this case, the cylinder device 60 has a cylinder body 65 that is pivotally supported by a pin 64 on a bracket 63 that is fixed to the main body of the device.
When the conveyor 10 is displaced in the opposite direction, the pivot portions of the cylinder body 65 and the bracket 63 and the pivot portions of the plunger 61 and the rectangular frame body 12 cooperate with each other as the cylinder device 60 expands and contracts. , the displacement of the conveyor 10, that is, the bending of the panel P is performed (see FIG. 2).

In addition, the rollers 13 and 1 of each of the above-mentioned conveyors 10
A guide roller 70 is provided at an appropriate position between the panels 4 and 4 for guiding the conveyance of the panel P according to the size of the panel P.
is disposed so as to be movable in a direction perpendicular to the conveyance direction of the panel P. In this case, as shown in FIG. 2, the guide roller 70 has a support shaft 74 attached to a U-shaped holding member 73 attached to a plunger 72 of an adjusting cylinder device 71 such as a hydraulic cylinder installed horizontally. It is attached so as to be rotatable in the horizontal direction, and is formed to be adjustable and movable in the horizontal direction depending on the size of the panel P to be bent.

The insertion bending plate 30 is composed of a disc 33 that is vertically rotatably supported with a shaft 32 at the lower end of a holding member 31 that is vertically fixed to the main body of the device. The receiving mold member 40 has a drum-shaped roller 42 which is pivotally connected to the main body of the device with a horizontal shaft 41.
The lower end of the disk 33 is located close to the concave center 43 of the drum-shaped roller 42 (see FIG. 3). In this case, a driven sprocket 44 is attached to the horizontal shaft 41, and this driven sprocket 44 is suspended between a conveying drive sprocket 51 of a conveying chain 53, which is a conveying means described later, and a coaxial sprocket 45. Power is transmitted through a transmission chain 46.

On the other hand, the conveying means 50 includes the conveyor 10
It is constituted by a conveyance chain 53 that spans both ends of the longitudinal direction between them, that is, the front end of the panel P in the conveyance direction, and a conveyance driven sprocket 52 and a conveyance drive sprocket 51 disposed immediately before the receiving mold member 40. This chain 53 is equipped with a conveyance hook 54 that comes into contact with the rear end surface of the panel P in order to convey the panel P, and a driven sprocket 5 coaxially with the conveyance driving sprocket 51.
5 is attached, and a power transmission chain 59 is stretched between the driven sprocket 55 and a drive sprocket 58 attached to a drive shaft 57 of a drive motor 56.

Next, the operating state of the folding device of this invention will be explained.

First, a sanderch panel P for processing is prepared. In this case, the sanderch panel P has a rectangular shape whose periphery is made of a frame material 20 made of synthetic resin, as shown in FIG. The panel P has a structure in which surface plates 21a and 21b made of aluminum alloy plates are fixed to both sides of the frame body, and an insulating core material 22 made of foamed polyurethane is injected and foamed inside. As shown in FIG. 7 along the planned line, use a cutter as appropriate to cut a cross section from the side of the surface plate 21b on the inner side of the bend, leaving the other surface plate 21a, with an opening angle of 90 degrees, which is the bending angle. V
The character-shaped groove 23 is formed in a straight line over the entire length of the panel.

The panel P configured as described above is placed on the panel supply side of the folding device of this invention using a guide roller 70 adjusted in advance with the V-shaped groove 23 side facing upward.
It is conveyed onto the conveyor 10 via. Next, the conveyor 10 is moved in opposite directions by the cylinder device 60 to bend the sandwich panel P at a predetermined angle, and then transported to the insertion bending plate 30 and receiving mold member 40 side by the transport means 50. At the same time, the insertion bending plate 30 and the receiving mold member 40 work together to accurately bend the corners of the panel P, and then the panel P is taken out.

In the above embodiment, the insertion bending plate 30 is made up of a disc and the receiving mold member 40 is made of a drum-shaped roller, but the insertion bending plate 30 is limited to the structure described above. For example, as shown in FIGS. 4 and 5, the insertion folding plate 30 is a rectangular plate-shaped folding plate that is movable up and down by a holding cylinder device 34 installed in the main body of the device. The receiving mold member 40 is formed of a curved plate 35, and the receiving mold member 40 has a V
It may also be configured with a grooved mold 47 having a shaped cross section.
With this configuration, the bending plate 35 descends toward the grooved die 47 as the holding cylinder device 34 operates toward the panel P conveyed by the conveyance means 50. Corners can be bent accurately.

In addition, the panel P which has been bent is attached with a bonding material such as an angle material, with both slopes of the V-shaped groove 23 and the cutout end of the surface plate 21b in contact with each other, as shown in FIG. 24 is fixed to the inner surface of the bent portion of the panel with a rivet 25 to form a corner panel. Note that the joining is not limited to rivets; for example, the abutting end of the surface plate 21b on the inner surface of the folded portion of the panel may be bonded using hot melt.

In the above embodiment, the receiving mold member 40 is disposed on the lower side, and the insertion bending plate 30 is disposed facing the receiving mold member 40. However, it is not always necessary to arrange it in this state. For example, if the upper and lower surfaces of the panel P are reversed, and the receiving mold member 40 is arranged on the upper side and the insertion bending plate 30 is arranged on the lower side, the panel P will be the same. Can be bent. Further, the conveyor 10 does not necessarily have to have the same size on the left and right sides, and the same effect can be obtained even if the conveyor 10 has an asymmetric size. Needless to say, the angle can be set as follows.

[Effect of the invention] As explained above, according to the sanderch panel bending device of this invention, the sandwich panels to be processed are pivoted at symmetrical positions with respect to the feeding direction so as to be movable in mutually opposing directions. a pair of conveyors, an insertion bending plate and a receiving mold member disposed opposite to each other on the rear side in the feeding direction of these conveyors, and a conveying means for conveying the sand beach panel in the conveyor section, Since the intersection of the inclination angles of the conveyors is substantially aligned with the lower end of the insertion folding plate or the upper end of the receiving mold member, the following effects can be obtained.

1. Since the corners of the panel that have been previously bent by the conveyor are accurately bent using the insertion bending plate and the receiving mold member, bending to the desired angle can be done quickly and dimensional accuracy can be achieved. In addition, it is possible to improve the quality and design value of the panel.

2. The number of components can be reduced and the structure is simple, so there are fewer complications.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the first embodiment of the sanderch panel folding device of this invention, Fig. 2 is a sectional view showing the installation state of the conveyor and guide roller in this invention, and Fig. 3 is FIGS. 4 and 5 are side views showing the first embodiment of the insertion bending plate and receiving mold member, and FIGS. -V sectional view, Figure 6 is a sectional view with a part of the sanderch panel for processing omitted,
FIG. 7 is a partial cross-sectional view of a sanderch panel with a V-shaped groove for bending, and FIG. 8 is a partial cross-sectional view of the sanderch panel that has been bent. Code explanation, 10... Conveyor, 13, 14...
Roller, 30... Insertion bending plate, 33... Disc,
34... Holding cylinder device, 34... Rectangular plate-shaped bent plate, 40... Receiving mold member, 42... Drum-shaped roller, 43... Concave center, 47... Grooved mold,
50... Conveyance means, 51... Drive sprocket for conveyance, 52... Driven sprocket for conveyance, 53...
...Transportation chain, 54...Transportation hook, 56...
...Drive motor, 60...Cylinder device.

Claims (1)

[Claims for Utility Model Registration] (1) Utilizing a V-shaped groove for bending formed on one of the front and back surfaces of a sandwich panel consisting of a pair of face plates filled with an insulating core material. Well, this V
A sanderch panel folding device for folding the sanderch panel toward the character-shaped groove side includes a pair of conveyors pivotably supported at symmetrical positions with respect to the feeding direction of the sanderch panel so as to be movable in opposite directions. , consisting of an insertion bending plate and a receiving mold member disposed facing each other on the rear side in the feeding direction of these conveyors, and a conveying means for conveying the sanderch panel in the conveyor section, and the inclination formed by the conveyors. A device for folding a sanderch panel, wherein the intersection of the corners and the lower end of the insertion folding plate or the upper end of the receiving mold member are substantially aligned. (2) The sanderch panel folding device according to claim 1, wherein the conveyor includes a plurality of rollers arranged in parallel, including a drive roller. (3) A sanderch panel folding device according to claim 1, wherein a conveyor is supported by a cylinder device so as to be displaceable in opposite directions. (4) The insertion bending plate is composed of a disc pivoted to the main body of the device, and the receiving mold member is composed of a drum-shaped roller pivoted to the main body of the device. The device for folding a sanderch panel according to claim 1, wherein the lower ends of the discs are close to each other. (5) The insertion bending plate is composed of a rectangular plate-shaped bending plate mounted on the main body of the device so as to be able to be raised and lowered, and the receiving mold member has a groove having a V-shaped cross section close to the lower end of the rectangular plate-shaped bending plate. A folding device for a sandwich panel according to claim 1 of the utility model registration claim, which comprises a mold. (6) The conveyance means is composed of two sprockets disposed at the front of the feed between the pair of conveyors and just before the receiving mold member, and a conveyance hook attached to a chain that spans these sprockets. 1. A device for folding a sandwich panel according to claim 1 of the registered utility model.