JP3161309B2 - Conveyor for strip material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt-like material conveying device, and is used, for example, for supplying a belt-like material to a press forming device.

[0002]

2. Description of the Related Art Conventionally, when a strip material made of metal such as aluminum is supplied to a press forming apparatus or the like, usually, the strip material is wound in a coil shape on an uncoiler, and this coil material is wound from an uncoiler. Rewind and supply. Then, when a required number of target products such as press molding are produced and the target products are changed, the belt-shaped material is replaced.

[0003] In this case, as a conventional method of exchanging the strip material, a double-headed uncoiler system shown in FIG.
The single-head uncoiler system shown in FIG. 6B is used. In the former double-headed uncoiler system, FIG.
As shown in FIG.
Cylindrical portions 102 and 103 are provided at both ends, and band-shaped materials 104 having different widths, thicknesses, materials, and the like are respectively wound around these cylindrical portions 102 and 103 in a coil shape. When the production of the product using the band-shaped material 104 of the part 102 (production by the press forming apparatus 105) is completed and the belt-shaped material 104 of the other cylindrical part 103 is replaced, the band-shaped material 104 on the side of which production has been completed is once After rewinding, the material end is fixed by means of an adhesive tape or the like. Thereafter, the two cylindrical portions 1 are driven around the drive source 100.
02 and 103 are turned as indicated by an arrow F, and the belt-shaped material 104 of the other cylindrical portion 103 is unwound as the next work-in-progress material and is fed into the feeder 106. The feeder 106 feeds the belt-shaped material 104 into the press forming apparatus 105 by a predetermined size in synchronization with the press operation of the press forming apparatus 105.

[0006] In the latter single-head uncoiler system, as shown in FIG.
01, a cylindrical portion 102 is provided only at one end, and a band-shaped material 104 is wound around the cylindrical portion 102 in a coil shape. When production of a product using the band-shaped material 104 is completed, the band-shaped material 104 is Then, the material is rewound and its material end is fixed by means of an adhesive tape or the like. Thereafter, using a conveying means such as a hoist, the strip material 104 whose production has been completed is removed from the cylindrical portion 102, and another strip material 104 serving as the next in-process material is attached to the cylindrical portion 102 instead of this.
The belt-shaped material 104 is rewound from the cylindrical portion 102 and is fed into the feeder 106.

[0005]

However, in the former double-headed uncoiler system, when the production of a product using one of the band-shaped materials 104 is finished, the band-shaped material 104 on the production end side is once rewound and fixed. Thereafter, since both cylindrical portions 102 and 103 are turned to unwind the next work material, the setup time for material exchange is inevitably long, the workability of material exchange is poor, and the press of the press forming device 105 Also in processing and the like, there is a problem that the waiting time accompanying the material exchange becomes long, and the productivity is deteriorated.

[0006] In the latter single-head type uncoiler system, once the production of a product using a specific band-shaped material 104 is completed, the band-shaped material 104 whose production has been completed is temporarily removed.
After the material has been rewound and fixed, the production-completed material is replaced with the next work-in-progress material, so that the setup time for the material replacement also becomes longer, the workability of the material replacement is poor, and the production of the press working of the press forming apparatus 105 is performed. There is a problem that the property also worsens.

[0007] The present invention has been made in view of the above points,
During the production such as press working of the band material supply destination, the next work in process material is made to stand by near the material input port, shortening the setup time at the time of band material exchange, improving the workability of material exchange, and improving the product The purpose is to improve the productivity of processing.

[0008]

In order to achieve the above object, the present invention employs the following technical means. According to the first aspect of the present invention, two single-head uncoilers (12, 1) are provided.
3) are arranged in series in the front-rear direction with respect to the transport direction (A) of the strip material (10, 11), and of the two single-headed uncoilers (12, 13), the strip material (10, 11) Rear uncoiler (1) arranged on the rear side in the transport direction (A)
From a position near the 2), the part extending in the material inlet (15) near the position of the machining apparatus of the strip material (10, 11) (14), an auxiliary feeder (17), an auxiliary feeder (1
7) Below the two single-head uncoilers (12, 13)
At the auxiliary transfer device (17),
End of the strip material (10) unwound from the stirrer (12)
A clip-type material holding means (18) for holding the
Among the single-headed uncoilers (12, 13), the band material (1) unwound from the front uncoiler (13) arranged on the front side in the transport direction (A) of the band material (10, 11).
While processing 1) with the processing device (14), the end of the strip-shaped material (10) unwound from the rear uncoiler (12) is clip-type material holding means (18) of the auxiliary transport device (17 ).
Processing equipment by interposing a material inlet (14) (15)
It is characterized in that it is transported to a nearby position and made to stand by.

As described above, during processing (production) of the product using the band-shaped material (11) on the front uncoiler (13) side, the tip of the band-shaped material (10) on the rear uncoiler (12) is used as a material.
When the production of the product using the strip material (11) on the front uncoiler (13) side is completed because the material is put on standby at the input port (15), the band material (15) waiting at the material input port (15) is closed. Immediately insert the tip of 10) into the material inlet (1).
Can be input to 5).

[0010] Therefore, when the material is replaced, the replacement work is very easy, and the work time for the material replacement is short.
As a result, not only can the workability of material replacement be improved,
The waiting time at the time of material replacement for the processing device (14) is also short, and the productivity of product processing can be improved. According to the second aspect of the present invention, the auxiliary transporting device (17) is formed in a downwardly curved shape, and the band-shaped material (10) unwound from the rear uncoiler (12) is slacked downward in the processing device. It is characterized in that it is transported to a position near the material input port (15) of (14).

As described above, by providing the slack in the band material (10), the material can be smoothly supplied to the processing device (14), and the band material (1) can be smoothly supplied.
The looseness of 0) can also prevent the band-shaped material (10) from interfering with the band-shaped material (11) on the front uncoiler (13) side. Further, in the invention according to claim 3, a guide rail (17a) extending from a position near the rear uncoiler (12) to a position near the material input port (15) of the processing device (14);
A moving member (17b) movable with respect to the guide rail (17a) ;
The lip type material holding means (18) is connected .

According to this, the moving member (17) is moved in accordance with a predetermined trajectory fixed in advance by the guide rail 17a.
Since b) can be reliably moved, the strip-shaped material (10) can be reliably and speedily conveyed from one end to the other end of the guide rail (17a). In the invention according to claim 4, the conveying speed of the band material (10) by the auxiliary conveying device (17) and the unwinding speed of the band material (10) unwound from the rear uncoiler (12) are controlled, It is characterized in that the amount of downward slack of the belt-shaped material (10) is adjusted.

Thus, the amount of slack of the strip material (10) downward can be automatically adjusted, and the amount of slack of the strip material (10) can always be adjusted to an appropriate value. In addition, the code | symbols in the parenthesis of each means show the correspondence with the concrete means of embodiment described later.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the drawings. In FIGS. 1 and 2, strip-shaped materials 10 and 11 made of metal such as aluminum are used as cylindrical portions 12 a and 13 a of two single-headed uncoilers 12 and 13.
Are respectively wound in a cylindrical shape. Here, the belt-shaped materials 10 and 11 are two types of materials having different widths, thicknesses, materials, and the like, because they are molding materials for different products.

The strip-shaped materials 10 and 11 are fed through a feeder 15 of a press-forming device 14 into a forming die of the press-forming device 14, and are pressed into a predetermined product shape in the forming die. It has become. Feeder 15
Is to feed the strip-shaped materials 10 and 11 into the press forming apparatus 14 by a predetermined size in synchronization with the press operation of the press forming apparatus 14, and serves as a material input port of the press forming apparatus 14.

The two single-head uncoilers 12, 13 are:
The strip-shaped materials 10 and 11 are arranged in series before and after in the transport direction (the direction of arrow A in FIG. 2), and the rear uncoiler 12 and the front uncoiler 13 may have the same structure. The cylindrical portions 12a, 13a are connected to one ends of the rotating shafts 12c, 13c.
a, 13a are rotated to form strip-shaped materials 10, 11
Can be wound and unwound.

The rear uncoiler 12 arranged on the rear side in the conveying direction A is combined with an auxiliary conveying device 17 which is a feature of the present invention.
7 is a monorail type, and its guide rail 1
7a is a band-shaped material 1 when viewed from above as shown in FIG.
It is arranged at a position offset from the transfer position of 0, 11 (line of the arrow A in FIG. 2), and by this offset arrangement, it is possible to prevent the guide rail 17a from interfering with the strip-shaped material 11 from the front uncoiler 13. , To prevent the strip material 11 from being damaged.

The guide rail 17a is formed in a downwardly curved shape (see FIG. 1) so that the belt-shaped material 10 from the rear uncoiler 12 has an appropriate slack.
One end B is set near the unwinding position of the strip material 10 of the rear uncoiler 12, and the other end C is set in the press forming device 14.
Is set in the vicinity of the feeder 15 serving as the material input port.

As shown in FIG. 3A, the guide rail 17a of the auxiliary transfer device 17 is formed of a box having a rectangular cross section, and two rollers 17b are lightly rotatably housed in the inside thereof. The two rollers 17b are rotatably connected to a common support shaft 17c. A guide groove 17d formed in a curved shape along the curved shape is opened on one side surface of the guide rail 17a, and the support shaft 17c is connected to the guide rail 17a through the guide groove 17d.
Projecting outside

Therefore, the guide rail 17a is
The rollers 17b and the support shaft 17c can move integrally in the longitudinal direction of the guide rail. Support shaft 17
For example, a wire (not shown) extending in the longitudinal direction of the guide rail is provided in the guide rail 17a, and the wire is driven by a driving source (not shown) such as a motor to move the support shaft 17c. Can be moved in the longitudinal direction of the guide rail.

A material holding jig 18 is connected to an end of the support shaft 17c that protrudes outside the guide rail 17a. Specifically, the material holding jig 18 is of a clip type as shown in FIG. 4, and includes two plate members 18 a and 18 b connected to be openable and closable in the direction of arrow D, and the two plate members. And a coil spring 18c for urging the distal ends of the members 18a and 18b in the closing direction. The end of the strip-shaped material 10 is sandwiched between the distal ends of the two plate members 18a and 18b. I have.

The rotation of the drive source 12b of the rear uncoiler 12 and the movement of the support shaft 17c are electrically and automatically controlled so that the belt-shaped material 10 from the rear uncoiler 12 has an appropriate slack. For this reason, a pair of photoelectric sensors 19a and 19b for detecting the amount of slack of the band-shaped material 10 are provided at a position near the guide rail 17a of the auxiliary transfer device 17, as shown in FIG. Each of the photoelectric sensors 19a and 19b includes a light emitting element and a light receiving element.
Utilizing the intermittent transmission of light between a and 19b,
This is to detect the amount of slack. These sensors 19a, 19
The detection signal b is input to a control circuit (not shown) that controls the moving mechanism of the support shaft 17c and the drive source 12b of the rear uncoiler 12.

Next, the operation of the above configuration will be described.
The band-shaped material 11 unwound from the single-head type undecoiler 13 is fed into a feeder 15, and the band-shaped material 11 is fed into a molding die of a press molding device 14, where the band-shaped material 11 is converted into a predetermined product. Press into shape. In this way, while the product is being produced with the strip material 11 on the front uncoiler 13 side, the auxiliary transport device 17 and the rear uncoiler 12 are operated in synchronization, and the strip material 10 unwound from the rear uncoiler 12 is operated. Guide rail 1
The sheet 7a is conveyed to the end C on the feeder 15 side, where it is put on standby.

That is, while a product is being produced from the strip-shaped material 11 on the front uncoiler 13 side, a clip-type material holding jig 18 located on one end B side of the guide rail 17a.
Thereby, the front end of the band-shaped material 10 on the side of the rear uncoiler 12 is sandwiched. Thereafter, the moving mechanism of the support shaft 17c is controlled in synchronization with the drive source 12b of the rear decoiler 12, and
While unwinding the strip material 10 from the rear uncoiler 12, the support shaft 17c and the material holding jig 18 are moved toward the feeder 15 side end C of the guide rail 17a.
Move 0.

Then, the material holding jig 18 is
When a proximity sensor (not shown) senses that it has reached a predetermined position X immediately after the bottom of the curve, a pair of sensors 19a, 1a
The unwinding of the band-shaped material 10 from the post-uncoiler 12 is controlled in accordance with the detection signal 9b. That is, when the slack of the band-shaped material 10 becomes large and the band-shaped material 10 blocks the passage of light between the pair of sensors 19a and 19b, the unwinding of the band-shaped material 10 from the rear uncoiler 12 is stopped.
The slack of the band-shaped material 10 is prevented from becoming excessive. Conversely, when the slack of the band-shaped material 10 becomes small and the band-shaped material 10 allows light to pass between the pair of sensors 19a and 19b, the unwinding of the band-shaped material 10 from the rear uncoiler 12 is continued, and the band-shaped material 10 Prevent the slack of 10 from becoming too small. In this way, by controlling the unwinding of the strip material 10 in accordance with the slack of the strip material 10, the slack of the strip material 10 can be automatically set to an appropriate value.

When the belt-shaped material 10 reaches the end C, the support shaft 17c and the material holding jig 1
8, the unwinding of the strip material 10 from the rear uncoiler 12 is stopped, and the front end of the strip material 10 is made to stand by at this end (end near the material inlet) C. Therefore, the strip-shaped material 11 on the front uncoiler 13 side
When the production of products using
After the material 1 is rewound from the feeder 15 and its material end is fixed by means of an adhesive tape or the like, the leading end of the band-shaped material 10 from the uncoiler 12 which is already waiting near the feeder 15 is removed from the material holding jig 18. And can be immediately fed into the feeder 15.

As described above, at the time of material exchange, the feeder 15
Since another belt-shaped material 10 already waiting in the vicinity can be immediately supplied to the feeder 15, the work of material exchange is very easy, and the work time of material exchange is short. As a result, not only the workability of the material exchange can be improved, but also the waiting time at the time of material exchange for the press molding apparatus 14 is short, and the productivity of the press molding can be improved.

Further, in the auxiliary transfer device 17, since the roller 17b can be reliably moved in accordance with a predetermined orbit fixed in advance by the guide rail 17a, the belt-shaped material 10 can be moved from one end B of the guide rail 17a to another. The sheet can be reliably and quickly conveyed toward the end C.
In addition, by controlling the moving mechanism of the support shaft 17c of the auxiliary transfer device 17 and the drive source 12b of the rear uncoiler 12, the unwinding speed of the band material 10 from the rear uncoiler 12 and the synchronization of the transfer speed of the band material 10 are synchronized. As a result, the belt-shaped material 10 can be moderately slackened (curved indicated by a two-dot chain line in FIG. 1). Due to the slack of the band-shaped material 10,
The material can be smoothly fed into the press forming apparatus 14 by the feeder 15. In addition, this band-shaped material 1
Due to the slack of 0, the band-shaped material 10 can also be prevented from interfering with the band-shaped material 11 on the front uncoiler 13 side.

In the above embodiment, the material holding jig 1
Although the clip type shown in FIG. 4 is used as 8, a magnet 18e is fixed to the upper surface of a holding plate 18d as a material holding jig 18 as shown in FIG. Then, the end of the belt-shaped material 10 may be attracted by the magnetic force of the magnet 18e.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an arrangement of a material conveying device and a press forming device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3A is a cross-sectional view of the auxiliary transport device according to the present invention, and shows a cross section taken along line EE of FIG. (B) is a front view of the auxiliary transport device.

FIG. 4 is a perspective view of a material holding jig 18 attached to an auxiliary transport device according to the present invention.

FIG. 5 is a perspective view showing another embodiment of the material holding jig 18;

FIG. 6 is a schematic view showing an arrangement of a conventional material conveying device and a press forming device.

[Explanation of symbols]

10, 11 ... strip-shaped material, 12 ... rear decoiler, 13 ...
Front uncoiler, 12a, 13a ... cylindrical part, 12c,
13c: rotating shaft, 14: press forming device, 15: feeder (material inlet), 17: auxiliary transport device, 17a: guide rail, 17b: roller, 17c: support shaft, 18:
Material holding jig.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 23/182 B65H 19/10 B65H 20/16

Claims (4)

(57) [Claims] 1. A strip material (1) is inserted into a material inlet (15) of a processing device (14) for processing the strip material (10, 11).
0, 11), comprising a cylindrical portion (12) for winding the band-shaped material (10, 11).
a, 13a) at one end of the rotation shafts (12c, 13c), two single-headed uncoilers (12, 13) are serially arranged in front and rear with respect to the transport direction (A) of the strip material (10, 11). Arranged, of the two single-headed uncoilers (12, 13),
A portion extending from a position near the rear uncoiler (12) arranged on the rear side in the transport direction (A) of the band-shaped material (10, 11) to a position near the material input port (15) of the processing device (14). , An auxiliary transfer device (17), and the auxiliary transfer device (17) is provided with the two single-headed
(12, 13), and
To the feeding device (17) from the rear uncoiler (12).
Clip for pinching the end of the strip material (10)
And a two-headed uncoiler (12, 13).
While the strip material (11) unwound from the front uncoiler (13) arranged on the front side in the transport direction (A) of the strip material (10, 11) is being processed by the processing device (14),
The end of the band-shaped material (10) unwound from the rear uncoiler (12) is connected to the auxiliary transfer device (17) by the screw.
-Up type material holding means (18) said processing device by holding the (14) material inlet (15) conveying device of the belt-like material characterized in that so as to stand by conveying to the vicinity of a position. 2. The processing device (14), wherein the auxiliary transport device (17) is formed in a downwardly curved shape, and the strip material (10) unwound from the rear uncoiler (12) is slacked downward. 2. The apparatus according to claim 1, wherein the apparatus is transported to a position near the material inlet (15). 3. The processing device (1), wherein the auxiliary transfer device (17) is moved from a position near the rear uncoiler (12).
4) the material inlet of the (15) guide rails extending in the vicinity (17a), and a movable moving member (17b) relative to the guide rail (17a), the movable member
(17b) the clip type material holding means (18)
Conveying apparatus of the belt-like material according to claim 1 or 2, characterized in that coupling. 4. A conveying speed of said band-shaped material (10) by said auxiliary conveying device (17) and said rear uncoiler (1).
The unwinding rate of the strip material (10) is controlled by controlling the unwinding speed of the strip material (10) unwound from 2). The belt-shaped material conveying device according to any one of the above.