JPH0627229Y2 - Cap manufacturing equipment for packing metal plate coils - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for manufacturing a cap for protecting an end portion of a metal plate coil such as a steel strip when the coil is packed.

[Conventional technology]

In order to prevent the ingress of water, dust, and the like from the outside after packing, the metal plate coil has a cap attached not only to the coil circumferential surface but also to the coil end in order to prevent the coil from rusting. And, in many cases, the cap is made from excess material for the coil.

An apparatus disclosed in Japanese Patent Publication No. 61-007134 is known as an apparatus for manufacturing such a cap. In this known device, the peripheral edge of the material disk is radially inwardly cut at one or more locations, and the peripheral edge is bent in the circumferential direction one after another and repeatedly crushed to form an annular flange. Is what you get.

[Problems to be solved by the device]

However, in the case of this device, it is necessary to provide notches at one or more positions in the circumferential direction in order to absorb the extra length in the circumferential direction at the time of bending. Therefore, when the finished cap is used, this cut portion becomes a water infiltration part from the outside, and the metal plate coil is rusted.
As described above, the known device has a problem that a cap having no cut portion cannot be formed.

In addition, since the molding head that folds and crushes a part of the peripheral edge of the material disk to the center of the material disk has a structure that extends to the center position of the material disk, even if it is attempted to provide the above-mentioned units at a plurality of positions in the circumferential direction, it is small Not possible with diameter caps. And, naturally, the number of cuts increases.

Further, since the above-mentioned forming head has different forms depending on the material of the plate thickness of the material disk, it is necessary to prepare various kinds of forming heads or to limit the plate thickness and steel type. Since it is ideal to use a surplus coil for the cap material disc as a packaging material, using a cap material disc with a limited plate thickness and steel type leads to an increase in the material cost.

The above problems of the present invention have been solved, the notch is not required in the cap, the device can be easily arranged at the peripheral portion of the cap and the outside thereof at a plurality of positions in the circumferential direction, and the material disc It is an object of the present invention to provide a cap manufacturing device for a metal coil packaging, which can sufficiently support various types.

[Means for Solving the Problems]

According to the present invention, the above object is to provide an index table for placing a material disc, which is formed to have a diameter smaller than that of the material disc and can be indexed at a set angle in the circumferential direction, and at least one position of a peripheral portion of the index table. A pressing member that is disposed above the index table and can be pressed into and out of the index table to press the material disk against the index table, and the lower surface position of the radially outward protruding portion of the material disk on the index table. It is possible to rotate upward to the position of the side surface of the pressing member in a more pressed state, and by the rotation, a bending member that forms a bent portion by making a part of the protruding portion at a right angle, and the outer surface of the bent portion is surrounded. A support member that is surface-supported at two positions in the direction, and a part of the bent portion between the two positions is pressed and rotated downward to enter between the support members to form a fan-shaped convex portion at the bent portion. A folding member, A diaphragm member having a diaphragm surface inclined with respect to a radial line, which narrows the root portion of the portion from both sides in the circumferential direction, and a crushing member which moves radially inward and presses the convex portion against the side surface of the pressing member to crush it. , Is achieved.

Further, in the above-mentioned present invention, the supporting member and the diaphragm member are formed by a pair of finger members which can be opened and closed in the circumferential direction, the inner radial surface of the finger member serves as the supporting member, and the opening / closing edge forms the diaphragm member. It can be done.

At this time, the folding member may be formed so as to project and retract on the side surface of the pressing member so that it can enter the space when the finger member is opened.

[Action]

In the present invention, the cap is manufactured as follows.

First, a material disk having a diameter larger than this is placed concentrically on the index table, and this is pressed and held by a pressing member.

By actuating the bending member, a part of the annular projecting portion that projects radially outward from the index table is deformed at a substantially right angle to the side surface of the holding member so that the bending member lifts up a part thereof. A bent portion is formed on the protruding portion.

While the outer surface of the bent portion is supported by the support member at two positions in the circumferential direction, the folding member is inserted between the two to form a fan-shaped convex portion protruding radially outward.

The root portion of the convex portion is squeezed by a diaphragm member to form a constricted shape. At that time, since the constricted portion is formed by the inclined diaphragm surface of the diaphragm member, the convex portion is inclined with respect to the radial line.

After that, when the inclined convex portion is pushed radially inward by the crushing member, the convex portion is completely crushed between the side surface of the pressing member and a part of the flange is formed.

After the completion of such a series of operations, the pressing force of the pressing member is temporarily released, and the index table is rotated by the indexing angle. Then, after being pressed and held again by the pressing member, the above-mentioned operations are performed again. In this way, by repeating this many times, the flange portion is formed over the circumference of the material disc.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a partially cutaway exploded perspective view showing the schematic configuration of the apparatus of this embodiment. In addition, in the same figure, in order to clarify the directionality, the three-dimensional space coordinates XYZ which is the origin O are set. Here, XY forms a horizontal plane, and Z is a coordinate axis which is perpendicular to this and faces upward.

In FIG. 1, the index table 1 centered on the origin O is arranged with the XY plane as the upper surface. The index table 1 can be indexed at predetermined angles around the Z axis.

A pressing member 2 is arranged at a position of the peripheral portion of the index table 1, for example, at a position above the peripheral portion in the Y direction as shown in the drawing. The pressing member 2 is driven by an upper cylinder 3 to move the index table 1
The upper material disc (not shown) can be clamped. The outer surface (the surface located in the positive Y direction) 2A of the pressing member 2 is formed at the same position as the peripheral edge of the index table 1 and has substantially the same radius.

A support plate member 4 extends in the negative Y direction from the inner surface 2B of the pressing member 2, and a cylinder 5 driven in the Y direction is attached to the bottom surface thereof. A through window 6 is formed in the center of the pressing member 2 in the Y direction, and a folding member 8 rotatable around a pin 7 is attached to the front surface (surface in the positive Y direction) of the through window 6. . The folding member 8 is ejected forward and downward by the cylinder 5. The folding member 8 has a slender triangular shape with its cross-section in the XZ plane facing downward.

In the Y forward direction position of the index table, Y
A movable table 10 movable in the positive and negative directions is arranged, and a rotatable device 11 is incorporated therein. The turning device 11 is provided with X-direction guide shafts 13 on both sides, which are guided by guide grooves 12 formed around a point P having the same height as the origin O. When the other shaft 14 is driven by the cylinder 14A, it is rotationally driven around the above P.

A cylinder 15 facing the negative Y direction is provided on the bottom surface of the rotating device 11, and a bending member 16 is attached to the tip of the rod. By driving the cylinder 14A, the bending member 16 is rotatable about 90 degrees from the upper surface of the index table 1 to the front surface of the pressing member 2 with its tip end surface (the end surface in the negative Y direction). Is configured to be. Further, the cross section of the folding member 16 in the XZ plane is substantially similar to the cross sectional shape of the folding member 8 and is larger than that. The bending member 16 also serves as a crushing member which will be described later in the explanation of the operation.

Finger members 17 are provided on both sides in the X direction of the tip portion of the folding member at the horizontal position (the position shown in FIG. 1).
The finger members 17, 17 are supported by pins 18, 18 at their lower ends and by arms 20, 20 at their upper ends so as to be swingable around the pins 19, 19, and the cylinder 2 attached to the arms 20, 20 is supported.
By driving 1, the legs can be opened and closed around the pins 18 and 18. When the leg members 17 and 17 are opened, the bending member 16 enters the space so that the Y negative direction surfaces of the finger members 17 and 17 are substantially flush with each other. Further, the same surface of the finger members 17, 17 functions as a support surface (support member).

Opposing open leg edges 22 and 22 of the finger members 17 and 17 are formed relatively thin in the Y direction, and their cross sections in the XY plane are inclined surfaces parallel to each other. It constitutes a member.

Next, an explanation will be given of the procedure for forming the cap by the apparatus of this embodiment having such a configuration.

First, the Y direction position of the movable table 10 is determined so that the finger members 17, 17 are in the upright state of FIG. 1 and the Y negative direction surface thereof is the position of the peripheral surface of the index table 1. To be precise, a gap corresponding to the thickness of the material disc is formed between the finger members 17, 17 and the peripheral surface of the index table. Thereafter, the cylinder 14A is driven to bring the shaft 13 to the lowermost position, and the bending member 16 is made to stand by until the tip surface of the bending member 16 is flush with the upper surface of the index table 1.

Next, a material disk M having a diameter larger than that of the index table 1 is placed on the index table 1 so as to be concentric. After that, the pressing member 2 is lowered to hold the material disk M under clamping (FIG. 2). In such a state, the material disc M projects at the peripheral edge by an amount larger than that of the index table 1.

Then, the cylinder 14A is operated to rotate the bending member 16 so that the tip end surface thereof comes to the front surface of the pressing member 2. At that time, the finger members 17, 17 are opened, and are in a position where they are advanced in the Y negative direction by the bending member 16 cylinder 15. Thus, a bent portion M1 bent at a right angle by the bending member is formed on a part of the peripheral edge of the material disk M (FIG. 3).

Then, the bending member 16 is retracted in the positive Y direction by the cylinder 15, and the folding member 8 is pivotally advanced by the cylinder 5. As a result, the bent portion M1 formed by the above process is supported by the finger members 17, 17 on both sides in the circumferential direction, and the folding member 8 enters between them, so that the convex portion forming a fan shape in the YZ plane is formed. M2 will be formed (4th
Figure).

Next, the folding member 8 is retracted (FIG. 5), the finger members 17, 17 are closed, and the root portion of the convex portion M2 is narrowed down (FIG. 6). At this time, since the diaphragm surfaces of the finger members 17 and 17 form an inclined surface, the narrowed convex portion M2 is inclined in that direction.

Then, after the finger members 17, 17 are opened,
In the meantime, the bending member 16 which functions as a crushing member is provided with a cylinder.
It advances by 15 and crushes the said convex part M2 between the pressing member 2 and the folding member 8 (FIG. 7).

Thus, a part of the flange is formed by a series of steps. After that, the index table is indexed by a predetermined angle, and the above-mentioned steps are performed for the new part,
By repeating this one after another, a complete flange is completed and obtained from the cap.

In addition, in this embodiment, the support member and the diaphragm member are made to function as a pair of finger members, but they may be configured separately. Further, the bending member and the crushing member can also be separately provided in the same manner.

[Effect of device]

According to the present invention as described above, the following effects can be obtained.

It is possible to easily manufacture a cap that has no cutting lines around it and can completely prevent water or the like from entering from the outside after packaging the coil.

It is possible to provide a plurality of units of the device of the present invention around the index table, which results in a highly efficient device.

As in the conventional case, it is possible to form a single unit by adjusting the amount of folding, even if the folding head does not have a different molding head depending on the plate pressure and steel type. Therefore, the coil surplus material can be used as the cap material, and the packaging material cost can be reduced.

[Brief description of drawings]

FIG. 1 is a partially broken exploded perspective view of an apparatus according to an embodiment of the present invention,
2 to 7 are views sequentially showing steps by the apparatus in FIG. 1, FIGS. 2 and 3 are views seen from the Y direction, and FIGS. 4 to 7 are views seen from the Z direction. Is. 1 ... Index table 2 ... Pressing member 8 ... Folding member 16 ... Bending member (crushing member) 17 ... Supporting member (finger member) 22 ... Throttle member (throttle surface)

Claims (3)

[Scope of utility model registration request] 1. An index table for placing a material disc, which is formed to have a diameter smaller than that of the material disc and can be indexed at a set angle in the circumferential direction, and is arranged above at least one position of a peripheral portion of the index table. The pressing member that can be pressed into and out of the index table and can press the material disc against the index table, and the pressing state of the material disc from the lower surface position of the radially outward protruding portion on the index table. A bending member that can be rotated upward to a position of a side surface of the member and forms a bent portion by rotating a part of the protruding portion at a right angle, and an outer surface of the bent portion at two positions in the circumferential direction. A support member for supporting the surface, and a folding member that is located between the two positions and that presses a part of the bent portion and rotates downward to enter between the support members to form a fan-shaped convex portion in the bent portion, Around the root of the protrusion A squeezing member having a squeezing surface inclined with respect to a radial line for squeezing from both sides in a direction, and a squeezing member for squeezing by pressing the convex portion against the side surface of the pressing member by moving radially inward. Cap manufacturing equipment for packing metal plate coils. 2. The support member and the diaphragm member are formed by a pair of finger members which can be opened and closed in the circumferential direction, and the inner radial surface of the finger member forms the support member and the opening / closing edge forms the diaphragm member. An apparatus for manufacturing a cap for packaging a metal plate coil according to item (1). 3. The metal plate according to claim 2, wherein the folding member is formed so as to project and retract on a side surface of the pressing member and can enter the space when the finger member is opened. Coil packing cap manufacturing equipment.