JPS6313853Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a material rewinding device that enables quick exchange of material in a material feeding line for press working or the like.

In recent press operations, there has been a trend toward high-mix, low-volume production, and in order to reduce the cost of press products, it has become necessary to shorten the setup time for each press operation.

Therefore, in order to shorten the setup time in press operations, we developed a Quick Die Change System to quickly and accurately change the die for the press machine.
The so-called QDC system has been introduced and is beginning to be put into practical use in some areas.

On the other hand, when looking at a press work line, the main components are a press machine, a mold attached to it, and a material feeding device for feeding a predetermined amount of material into the processing position of the mold. When handling material wound into a shape, so-called coil material,
A material unwinding device is also an important component in order to unwind this coil material and supply it to the feeding device.

This material unwinding device rotates the coiled material in the unwinding direction and supplies it to the press machine depending on the amount of material consumed on the press machine side. For example,
A reel-type material unwinding device as shown in FIG. 1 is known.

That is, the rotation of the motor section 3 supported by the support column 2 erected on the base 1 is transmitted to the rotating shaft, the so-called reel shaft 5, by appropriately decelerating the speed reduction section 4. A configuration in which a coil material 7 whose inner diameter portion is held by a plurality of (four in the illustrated embodiment) interconnected holding fittings 6 is rotated, the coil material 7 is rewound, and the coil material 7 is supplied to a processing position. It is something that becomes.

Further, in FIG. 1, 8 is a holding member that supports the end of the coil material 7 in the insertion direction, and 9 is a holding member that can be attached to and removed from the reel shaft 5 in order to prevent the coil material 7 from falling off from the holding fitting 6. This is a retaining member that can be freely installed.

Furthermore, this type of material unwinding device generally requires
The holding fitting 6 is configured to expand and narrow concentrically so that it can be applied to coil materials 7 of various inner diameters, and the motor section 3 is configured to expand and narrow concentrically so that it can be applied to coil materials 7 having various inner diameters. The amount of deflection is detected by an appropriate detection mechanism (not shown), and starting and stopping are controlled according to the amount of deflection.

In other words, in conventional reel-type material rewinding devices, the coil material holding part and rotational drive part are generally integrated, so for example, the retaining member 9 must be installed each time a different material is to be processed. It is necessary to remove the coil material 7 from the reel shaft 5 and replace the coil material 7, which makes replacing the coil material 7 troublesome.
Moreover, the replacement work required a lot of time, and the press machine had to be stopped during that time.

Furthermore, we prepare multiple units of this material rewinding device,
It may be possible to install the necessary coil materials in each in advance and eliminate the need to replace the coil materials, but in this case as well, it is necessary to set each material unwinding device to the correct position relative to the processing position. In addition, a so-called material unwinding operation is required each time, and providing a plurality of material rewinding devices poses a problem in terms of cost.

The present invention was made in view of the above-mentioned circumstances, and the holding part that holds the coil material and the driving part are separated, only a plurality of holding parts are prepared, and the driving part is common to each holding part. The coil material to be used for processing is preloaded on each holding part, and the drive part is installed in the correct position relative to the processing position, and the coil material to be processed is changed each time the material to be processed changes. It is an object of the present invention to provide a material rewinding device that speeds up and simplifies material replacement work by replacing only the holding portion.

Hereinafter, an embodiment of the material rewinding device according to the present invention will be described with reference to the drawings.

FIG. 2 is a side view showing a schematic configuration of an embodiment of the material rewinding device according to the present invention, and FIG. 3 is a plan view taken along the - line in FIG. 2 and viewed from the direction of the arrow.

However, in FIGS. 2 and 3, 1
Reference numeral 1 represents a driving portion, and reference numeral 12 represents a holding portion for the coil material.

Then, for the common drive unit 11, the holding unit 1
A plurality of machines 2 are prepared depending on the type of material to be processed.

By the way, the drive unit 11 is configured as follows.

First, a support 14 is erected on the base 13, and the motor section 15 and the speed reducer 16 are supported by the support 14. Further, the deceleration section 16 has a built-in braking mechanism. The rotation of the motor section 15 is appropriately decelerated by the deceleration section 16 and transmitted to the drive shaft 17.

In this case, various shapes can be considered as the shape of the drive shaft 17, but in the embodiment shown in FIG. It has a shape in which a hole 17a is formed.

Furthermore, in order to easily and reliably connect and align with the holding part 12, the base 13 includes a guide plate 18 in which a guide groove 18a is formed, and a guide plate 18 that allows the holding part 12 to enter the drive part 11. A pair of guide vanes 19 are attached to both sides in the direction.

Further, the base 13 is placed and fixed, and the holding part 12 is also placed when the driving part 11 and the holding part 12 are connected, and the driving shaft 1
7 and the height position of the reel shaft of the holding part 12,
This is a flat substrate provided to facilitate connection between the two.

This substrate 13a may not be provided if the floor surface on which the material feeding device is installed is flat and has no irregularities. Furthermore, instead of providing a separate substrate 13a, the base 13 may be formed wide, and the holding portion 12 may be placed on an extending portion of the base 13.

On the other hand, the holding section 12 is configured as follows.

First, reference numeral 21 denotes a base. A movable wheel 22 is disposed on this base 21 to facilitate the movement of the holding part 12. On the lower surface of the base 21, a guide plate 18 of the drive part 11 is mounted. A pin 23 is provided to protrude and engage with the guide groove 18a.

A support 24 is erected on the base 21, and a bearing portion 25 is supported by the support 24.
Furthermore, a reel shaft 26 as a rotating shaft is rotatably supported by this bearing portion 25.

Further, the reel shaft 26 is provided with a long threaded portion 27 that reverses the winding direction of the threads approximately at the center thereof, and a plurality of holding fittings 28 are screwed into this long threaded portion 27. By rotating the long screw portion 27, the holding fitting 28 is concentrically expanded or narrowed.

Furthermore, 29 is a coil material 3 indicated by a two-dot chain line in the figure.
A presser member 31 that supports the end of the coil material 30 in the insertion direction is a retaining member that prevents the coil material 30 from falling off. Further, the tip of the reel shaft 26 is connected to the drive unit 1.
The cross section is formed into a substantially half-moon shape so as to be engaged with the hole 17a of the rotating shaft 17 of No. 1.

However, in the above-described configuration, the drive section 1
1 in a suitable material unwinding device, for example for a press.

Next, from among the plurality of holding parts 12 each having a coil material 30 mounted thereon, a holding part 12 mounted with a coil material 30 to be processed is selected,
The drive unit 11 is moved to connect the two.

In this case, by advancing the holding part 12 in the direction of the driving part 11, the pin 23 first engages with the guide groove 18a of the guide plate 18, and then the movable wheel 22 is guided by the guide vane 19 and moves. ,
The movement of the holding portion 12 in the forward, backward, leftward and rightward directions is restricted in a predetermined direction, and the tip of the reel shaft 26 fits into the hole 17a of the drive shaft 17.

After that, by tightening and fixing the drive shaft 17 and the reel shaft 26 with the screw 20 which is a connecting member, the connection between the drive part 11 and the holding part 12 is completed, and the material having the drive part and the holding part of the coil material is removed. A rewinding device is obtained.

By starting the motor section 15, the amount of deflection of the rewound material is detected by a detection mechanism (not shown), and the motor section 15
By controlling the start and stop of the machine, material can be delivered to a processing position such as a press machine.

In addition, when the material to be processed changes, the drive unit 11 and the holding unit 12 are uncoupled, and the holding unit 12 on which the coil material 30 of the new material to be processed is mounted is removed.
By moving the drive unit 11 to the installation position of the drive unit 11 and connecting the two, it is possible to easily and quickly replace the material without having to perform troublesome positioning work such as feeding the material out. Become.

Furthermore, since the holding part 12 has a simple structure that holds the coil material 30 and supports it rotatably, it can be manufactured at low cost, and it can be manufactured at low cost without using a conventional material rewinding device that has a driving part and a holding part integrally. Compared to preparing multiple units, it is possible to significantly reduce costs.

By the way, various types of coupling methods between the drive shaft 17 and the reel shaft 26 can be adopted in addition to the embodiment shown in FIG.
As shown in the figure, a structure in which a key groove is provided in the hole 17a of the drive shaft 17 and a key is formed on the reel shaft 26 side,
Alternatively, although not shown, the drive shaft 17 and the reel shaft 26 may be connected via an elastic material such as rubber, or an intermediary that moves relative to the respective shafts 17 and 26 may be interposed. Any coupling method may be used as necessary, such as a structure that connects the drive shaft 17 and the reel shaft 26 and enables transmission of rotational driving force even if there is a slight misalignment between the axes of the drive shaft 17 and the reel shaft 26, or a well-known universal joint structure. It can be adopted.

Furthermore, by setting the length of the connecting portion between the drive shaft 17 and the reel shaft 26 to be large, the connecting position of the holding portion 12 with respect to the driving portion 11 can be adjusted.
If the width of the coil material 30 is changed by changing the direction in which the coil material 30 enters, it becomes possible to easily carry out the work of drawing out the material even if the width of the coil material 30 changes.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with various modifications without changing the gist thereof.

As described above, the material rewinding device according to the present invention is divided into a driving part equipped with a motor and a holding part that supports the coil material from its inner diameter, and the driving part is positioned at a predetermined position relative to a press machine etc. At the same time, if necessary, prepare multiple holding parts and load the necessary coil material for each, and each time the material changes, the holding part for a common drive part is installed. The structure allows material replacement by replacing the material.

Therefore, according to the present invention, it is possible to quickly and easily exchange materials, and there is almost no need for alignment work, so the setup time can be significantly shortened, for example, in a press machine.
When used in conjunction with the QDC system, the actual operating time of press work can be improved, and the effects of improving work efficiency and reducing product costs are extremely large.

Furthermore, the material rewinding device according to the present invention has the advantage that it is mechanically simple and can be configured at low cost, and by preparing multiple units only on the holding part side, it is possible to quickly exchange multiple types of materials. As a result, it is possible to significantly shorten setup time and to construct an inexpensive material feeding line, which is extremely effective.

[Brief explanation of drawings]

FIG. 1 is a perspective view for explaining the schematic structure of a conventional material feeding device, FIG. 2 is a side view showing a schematic structure of an embodiment of the material rewinding device according to the present invention, and FIG. FIG. 4 is a plan view taken along the - line in FIG. 2 and viewed from the direction of the arrow.
FIG. 7 is a perspective view of main parts showing another embodiment of the material rewinding device according to the present invention. DESCRIPTION OF SYMBOLS 11... Drive part, 12... Holding part, 15... Motor part, 17... Drive shaft, 20... Screw, 25...
... Bearing part, 26 ... Reel shaft, 28 ... Holding metal fitting.

Claims (1)

[Claims for Utility Model Registration] (1) Supporting material wound into a coil, rotating and unwinding the material according to the amount used,
In the material rewinding device that sends out to the processing position,
A holding part that supports a material wound into a coil shape from its inner diameter direction by a holding fitting and rotatably supports the material at a predetermined height position by a support, and this holding part is configured separately. and has a drive shaft that is located at approximately the same height as the rotation axis of the holding part and is detachably coupled to the rotation axis of the holding part, and rotates this drive shaft in the material rewinding direction at a predetermined timing. A material rewinding device comprising: a drive section; and a connecting member that connects a drive shaft of the drive section and a rotating shaft of the holding section during operation. (2) The material rewinding device according to claim 1, wherein the holding section has a moving mechanism. (3) The material rewinding device according to claim 1 or 2, wherein the rotating shaft of the holding section and the driving shaft of the driving section are configured such that their coupling positions can be varied.