JPS6119005Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a honeycomb core stretching device used for floor panels and wall panels.

[Background technology]

Conventionally, resin-impregnated paper honeycomb cores have been used in floor panels and wall panels.
This honeycomb core is made by partially overlapping pieces of paper with an adhesive interposed therebetween and then stretching them. This spreading work has conventionally been done manually, which is inefficient.

Therefore, we devised a device that suctions an unexpanded honeycomb core from both sides with suction pads arranged at a constant pitch and stretches it by pulling it with the suction pads. However, since the honeycomb core is made of paper pieces, it is easily deformed, and there is a risk that some of the suction pads may fail to attract the honeycomb core as it expands, making it impossible to fully expand it.

[Purpose of invention]

The object of this invention is to provide a honeycomb core stretching device that can expand a honeycomb core reliably and efficiently.

[Disclosure of invention]

The honeycomb core expanding device of this invention is configured to expand the honeycomb core to an intermediate length using a suction pad attached to the advancing/retracting frame, so that the hook can be hooked and expanded in a state where it becomes easier for the hook to enter.

Embodiment An embodiment of this invention is shown in FIGS. 1 to 6. In the figure, reference numeral 1 denotes an expanding workbench on which a honeycomb core M is placed, and a pair of advancing/retracting frames 2 are provided on the upper surface. These advancing/retracting frames 2 are attached at both ends to two sets of drive chains 3 and 4, which are respectively provided from the center to both ends at the front and rear edges of the expansion workbench 1, and are opposed by the rotation of the drive chains 3 and 4. It is possible to move forward and backward. The drive chains 3, 4 are suspended between driven sprockets 5, 6 and a drive sprocket 7, and are driven by a motor 8.

A plurality of suction pad attachment members 9 are arranged on the reciprocating frame 2 at a constant pitch in the width direction. A suction pad attachment member 9 near the center is fixed to the reciprocating frame 2. The suction pad mounting members 9 near both ends are attached to the advance/retreat frame 2
A return spring 11 (Fig. 3) is attached to a slide guide 10 provided on the lower surface of the
is biased toward the reference position. The suction pad attachment member 9 is constructed by attaching a pipe 13 having a suction pad 12 at its tip so that it can move forward and backward, and to which a vacuum pipe 14 is connected. The vacuum piping 14 is made of a flexible tube and is connected to a suction device (not shown). The suction pad 12 is urged forward by a spring member 15.

A guide shaft 16 is provided in parallel above the reciprocating frame 2, and a hook 17 is fitted in a cylindrical portion 17a at the base end in correspondence with each suction pad 12 so as to be movable in the axial direction. The guide shaft 16 is rotatably supported by the reciprocating frame 12 via brackets 18 at both ends, and is rotated forward and backward by a claw rotation cylinder 19. Two parallel arc-shaped claw guides 20 are provided on the suction pad mounting member 9, and the hooking claw 17 is sandwiched between the claw guides 20. Therefore, the hooking pawl 17 can move in the axial direction of the guide shaft 16 only together with the suction pad 12.

Operation An unexpanded honeycomb core is placed in the center of the expanding workbench 1.
M' is placed by the operator. This honeycomb core
M' is made up of multiple sheets of paper partially overlapped with adhesive. After this, the advancing/retracting frame 2 is advanced to the center by the drive chains 3 and 4, and the suction pad 1
In Step 2, both sides of the unexpanded honeycomb core M' are adsorbed.
After adsorption, both the advancing and retracting frames 2 are moved back in synchronization, and the unexpanded honeycomb core M' is expanded (FIG. 6A). When the honeycomb core M is expanded to an intermediate length, that is, when it is expanded to a state where the hooking claws 17 can easily enter, the hooking claws 17 are brought down and hooked into each honeycomb cavity in the end row of the honeycomb core M (Fig. 6B ). In this state, the advancing/retracting frame 2 is further retreated, and the honeycomb core M is expanded to the maximum extent. At this time, honeycomb core M
As the honeycomb core M tends to become narrower as it expands, the suction pad 12 and the hooking claw 17 also move following this, and the pitch narrows, so that the honeycomb core M can be expanded to a uniform width over its entire length. Furthermore, as the expansion of the honeycomb core M progresses, the tensile load acting on the suction pad 12 increases, and furthermore, as the width of the honeycomb core M narrows, a lateral force acts on the suction pad 12, which may cause the suction to come off. However, since the hook 17 is hooked, even if the suction by the suction pad 12 comes off, the expansion can be performed and reliability is improved.

[Effect of idea]

The honeycomb core expanding device of this invention has the effect of being able to expand the honeycomb core reliably and efficiently.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of this invention, Fig. 2 is a side view showing its suction pad and advancing/retracting frame, Fig. 3 is a partial front view thereof, and Figs. 4 A and B are explanations of its operation. FIG. 5 is a partial plan view thereof, and FIGS. 6A and 6C are diagrams illustrating its operation. 1...Expansion workbench, 2...Advance/retreat frame, 3, 4...
Drive chain, 9... Suction pad mounting member, 10
...Slide guide, 12...Suction pad, 16
... Guide shaft, 17 ... Hook claw, 19 ... Cylinder for claw rotation, M ... Honeycomb core.

Claims (1)

[Scope of utility model registration request] A spreading workbench on which a honeycomb core is placed, a pair of horizontal movement frames that are provided on the spreading workbench so that they can move forward and backward facing each other and are wide in a direction orthogonal to the movement direction, and a drive for moving the movement frames forward and backward. a device, a plurality of suction pads that are attached to the reciprocating frame at appropriate intervals in the width direction and suctioning the outer surface of the honeycomb core in the expansion direction with negative pressure, a suction device connected to these suction pads, and the retractable frame. A honeycomb provided with a plurality of hooking claws that are vertically movable at appropriate intervals in the width direction and inserted into the honeycomb cavities in the end rows of the honeycomb core, and a rotation drive device for the hooking claws. Core expansion device.