JPS6343166B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Application of the Invention) The present invention relates to a method for feeding a coil material having a width larger than a press mold in the longitudinal direction (x-axis direction) and width direction (y-axis direction). This invention relates to a loop top guide device used in a two-dimensional feeding device, for feeding coil material from a leveler through an upper loop shape to a press machine.

(Background of the invention) In a conventional press primary processing line, the width of the coil material is determined according to the size of the product to be processed, and the wide coil material that has been rolled at the steel mill is slit using a slitter. The coil material was then rolled up to create a coil material with the desired material width, and this coil material was then punched out using a press. Furthermore, it is necessary to stock many types of coil materials with different material widths, making it difficult to reduce processing costs and material costs.

In order to solve this problem, the coil material is fed in the width direction as well, and the stress applied to the coil material at this time is released through a loop portion of a predetermined size formed between the leveler and the xy feeder. Unexamined Japanese Patent Publication 1986
This has already been proposed in Publication No. -126039.

However, in the above-described prior art, the guide portion of the loop top guide device that supports the loop portion from below is formed horizontally in the width direction of the coil material.
When the upper loop part 1a is formed in the upper loop part 1a, when the coil material 1 is moved in the width direction shown by the arrows y and y' by the xy feeder, the guide part installed horizontally due to the tilt angles 2 and 2' created in the coil material 1 3
Since the coil material 1 comes into contact with the coil material 1 at an angle, the end portions 4 and 4' of the coil material 1 are supported alternately, and twisting occurs near the top of the loop 1b, causing distortion in the coil material 1. Further, there was a problem in that the guide portion 3 and the ends 4, 4' of the coil material 1 rubbed strongly, resulting in scratches.

(Objective of the Invention) An object of the present invention is to provide a loop top guide device that can solve the above-mentioned problems and prevent the coil material from being distorted or damaged in the upper loop portion.

(Characteristics of the Invention) In order to achieve the above object, the present invention forms a guide member that comes into contact with the coil material into an arcuate shape in the width direction of the coil material.
The present invention is characterized in that substantially the center of the coil material being moved in the direction is always supported.

(Embodiment of the Invention) FIG. 2 shows a press working line using a loop top guide device according to an embodiment of the present invention. The wound portion of the coil material 1 is rotatably supported by a coil holder 5. The unwound coil material 1 is straightened from curling by a leveler 7 mounted on a pedestal 6, and at the same time is continuously fed. An upper loop portion 1a is formed after exiting the leveler 7. The upper loop portion 1a is determined to have an appropriate size corresponding to the thickness of the coil material 1 by adjusting the height of the loop top guide device 8. A loop guide 9 is attached to the frame 6 to guide the tip of the coil material 1 when it first draws a loop.

The coil material 1 after the top loop portion 1a passes through the inclined path 1c from near the top of the loop 1b and reaches the horizontal path 1d.
and a drive guide mechanism 11 are provided, and a horizontal path 1
An xy feeder 12 is provided at d. The drive guide mechanism 11 moves the coil material 1 in the width direction (y, y' directions in FIG. 3) by a movement amount equal to the feed amount in the width direction in synchronization with the width direction feed of the xy feeder 12.

The press 13 has a gate-shaped frame, and one or more sets of molds consisting of an upper mold 14 and a lower mold 15 are attached thereto. An auxiliary guide mechanism 16 is installed on the exit side of the press 13. The auxiliary guide mechanism 16 holds the remaining material 17 after processing the coil material 1 coming out of the press 13, and moves the remaining material 17 in the width direction in synchronization with the feeding of the xy feeder 12 in the width direction. 1
8 is a drive guide mechanism 11 and an auxiliary guide mechanism 16
A motor that drives the xy feeder 12 in synchronization with the
19 is a drive shaft.

FIG. 1A is a front view of a loop top guide device 8 showing one embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG. 1C is a side view thereof.

Below, FIGS. 1A, B, and C will be explained.

The loop top guide device 8 includes fixed columns 20 and 21 attached to the frame 6;
Movable struts 22, 23 that move up and down along the horizontal bar 2 that moves up and down together with the movable struts 22, 23
4, 25, 26 and vertical bars 27, 28, 29. The horizontal bars 24, 25, 26 and the vertical bars 27, 28, 29 are each formed into an arc shape. There is a movable strut 22 on the coil material feeding side of the movable struts 22 and 23 (left side of FIG. 1C).
A center guide 31 is rotatably attached via a mounting plate 30 fixed to. The center guide 31 is for guiding the coil material 1 to the center in the longitudinal direction (x direction) when setting or unwinding the coil material 1.
2, it is rotated vertically from the position 31 shown by the solid line to the position 31' shown by the two-dot chain line. Denoted at 33 and 33' are plates for preventing the coil material 1 from shifting laterally. Further, auxiliary guide plates 34 and 35 are provided on the coil material 1 delivery side of the movable support 22 (right side of FIG. 1 C) as necessary to maintain the connection between the loop top guide device 8 and the spanning plate 10. be done.

Mounting members 36 and 37 are fixed above and below between the fixed columns 20 and 21, and a motor 38 and a bearing 39
are installed respectively. Moreover, the movable support 22,
A female screw means 42 is attached to the mounting member 40 between the motor 38 and the bearing 39, which engages with a spiral shaft 41 that is rotationally driven between the motor 38 and the bearing 39.
3 is moved up and down with respect to the fixed columns 20 and 21, thereby adjusting the height of the loop top guide device 8.

Reference numerals 43 and 44 designate plates provided at the ends of the horizontal bar 25 to prevent the coil material 1 from falling sideways.

Next, explanation will be given below with reference to FIGS. 1A, B, and C, and FIGS. 2 and 3, A and B.

The longitudinal feed amount, the width direction feed amount, and their timing are determined in advance according to the type and dimensions of the punching process using the die, and the appropriate loop shape is supported depending on the material and plate thickness of the coil material 1. When the height of the loop top guide device 8 is determined as desired, the coil material 1 set as shown at 1a, 1b, 1c and 1d in FIG. 2 is fed to the press 13 and pressed.

In the above pressing process, the drive guide mechanism 1 synchronizes with the movement of the xy feeder 12 in the width direction.
1, the vicinity 1b of the loop top of the coil material 1 is also moved in the width direction y, y'. The coil materials 1 and 1' shown in FIG. 1A show an example of movement at this time.
If it is moved in the y direction shown in FIG. 3A, it will be in the position of the coil material 1, and if it is also moved in the y' direction shown in FIG. 3B, it will be in the position of the coil material 1'.

In both cases, the coil material 1 and the coil material 1' are fed in the longitudinal direction while being inclined with respect to the horizontal plane.
Since it has an arc shape in the width direction (y, y' direction), the center part 1e or 1 in the width direction of the coil material 1
e' is always supported by point contact with the transverse bar 25.

The coils 1 and 1', which are supported by point contact at the central portions 1e or 1e', can be moved in the x and y directions with extremely small sliding resistance, and at the same time can be moved in the width direction. Even with respect to the tilt angle (2, 2' shown in FIG. 3A, B) that occurs when the coil material 1 ends 4, 4'
Since the coil material 1 is supported while being freely tilted without coming into contact with the coil material 1, it is possible to prevent distortion and abrasion of the coil material 1 during feeding.

(Correspondence between the invention and the embodiments) In Fig. 1 A, B, and C, the horizontal bars 24, 2
5 and 26 correspond to the guide members of the present invention.

(Modified example) In FIGS. 1A, B, and C, three horizontal bars 24, 25, and 26 are provided, but the coil material 1 is a plate material having a cubic curved surface extending in the longitudinal direction and the width direction. Therefore, it may be formed to support the vicinity of the top of the loop of the coil material 1, or the guide member may be formed by one horizontal bar. Furthermore, the horizontal bar may be provided with rollers or cushioning material.

(Effects of the Invention) As explained above, according to the present invention, the guide member that comes into contact with the coil material is formed into an arc shape in the width direction of the coil material, so that
Since almost the center of the coil material being moved in the direction is always supported, it is possible to prevent the coil material from being distorted or damaged at the upper loop portion.

[Brief explanation of drawings]

FIG. 1A is a front view showing an embodiment of the present invention;
Figure B is also a plan view, Figure 1 C is also a side view,
FIG. 2 is a front view showing a primary press processing line equipped with an embodiment of the present invention, and FIGS. 3A and 3B are perspective views illustrating a loop of coil material. 1... Coil material, 1a... Upper loop part,
1b... Near the top of the loop, 8... Loop top guide device, 12... xy feeder, 20, 21...
Fixed pillar, 22, 23... Movable pillar, 24, 2
5, 26...Horizontal bar, 27, 28, 29...Vertical bar, 38...Motor, 41...Spiral shaft, 42...Female screw means.

Claims (1)

[Claims] 1. Feed the coil material in its longitudinal and width directions.
The loop top guide device, which is installed in front of the xy feeder and supports the top of the top loop of the coil material from below so that a proper top loop is formed while feeding the coil material, comes into contact with the coil material. A loop top guide device characterized in that the guide member is formed into an arcuate shape in the width direction of the coil material.