JPS6316824A - Zigzag feeding device for coil material - Google Patents

Abstract

PURPOSE:To prevent bending of a coil by turning the upper face base, and to blank zigzag a thick plate, by placing an uncoiler and a leveler on the upper face base being freely turnable in the horizontal direction, which has been provided on the base, and also, installing a reciprocating driving mechanism for turning the upper face base. CONSTITUTION:A coil material M which has been installed to an uncoiler 4 is drawn out of the uncoiler 4, passes through a leveler 5 and guided to a blanking press 6. On the upper face base 3 of the end part being near the blanking press 6, a roller 12 for rolling on a base 1 is provided. also, between the base 1 of the part to which the roller 12 has been attached and the upper face base 3, a reciprocating driving mechanism for turning the upper face base 3 centering around an axis of ordinate 2 is provided. As for the reciprocating driving mechanism, an air cylinder is provided on the base 1, and a piston rod is fixed to the upper face base 3. In this state, the upper face base 3 is turned centering around the axis of ordinate 2 by operating the reciprocating driving mechanism to match a timing for feeding the coil material M into the blanking press 6, and the coil material M supplied to a metallic die of the blanking press 6 is moved to the right and left directions, and blanked zigzag.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a zigzag feeding device for feeding coil material to a press machine.

(Prior art and its problems) It is well known that when punching a blank from coil material, the material yield is better if the blank is punched in a zigzag pattern than in a single row, depending on the shape of the blank (Figure 4). reference).

Conventional zigzag feeding methods include moving the blanking press in a direction perpendicular to the length of the coil material, or moving the punched part of the coil material in a direction perpendicular to the longitudinal direction. It is being

The former of the above-mentioned conventional examples suffers from economical disadvantages, such as the need to manufacture these devices in a strong manner since too much negative phase is applied to the press or mold structure. In addition, in the latter case, the coil may be bent, making it impossible to obtain a blank of the desired shape, and for this reason, there is a problem that the distance between the uncoiler and the blanking press must be long to accommodate the bending of the coil. there were.

Furthermore, in the conventional example of moving the coil material, when the coil material is thick, for example, when the plate thickness is 4 to 51 m1, it is difficult to move the material, and there are several problems that must be solved.

(Means for Solving the Problems) The present invention has been made to solve the problems of the prior art, in which an uncoiler and a leveler are placed on a rotatable base, and coil feeding is controlled. The base is rotated in accordance with the timing, and this moves the coil from side to side when viewed in the longitudinal direction, thereby performing zigzag extraction.

Specifically, an upper base is provided to be rotatable in the horizontal direction with respect to the base, an uncoiler and a leveler are placed on the upper base, and a reciprocating drive mechanism for rotating the upper base is connected between the base and the upper base. It was placed in between.

(Example) An upper base 3 is provided on a base 1 installed on the floor of a factory via a vertical shaft 2 so as to be rotatable in the horizontal direction. An uncoiler 4 and a leveler 5 are placed on the upper base 3, and a blanking brace 6,
A transfer press 7 for processing products is provided, and a conveyor 8 connects the blanking press 6 and the transfer press 7.

The upper base 3 provided on the base 1 has a bearing 1 on the vertical shaft 2.
A thrust bearing 11 is installed between the base l and the upper base 3 on the outer periphery of the bearing lO, and the upper base 3 has a vertical axis 2 relative to the base l. It can be rotated freely around the center. The vertical shaft 2 provided on the base l is installed near the end far from the blanking brace 6, and the vertical shaft 2 is located near the end opposite the vertical shaft 2, that is, the end near the blanking brace 6. Two to three rollers 12, 12 rolling on the base l are provided on the upper base 3 at the end.

Furthermore, in addition to this, between the base 1 and the upper base 3 where the rollers 12, 12 are attached, the upper base 3 is connected to the vertical axis 2.
A reciprocating drive mechanism 13 is provided that rotates around . Although the reciprocating drive mechanism 13 in the embodiment has an air cylinder mounted on the base l and a piston rod protruding from the cylinder fixed to the upper base 3, it may be of a mechanical type.

The uncoiler 4 is provided with a drive shaft 40 on which coil materials M are mounted, and in the embodiment, three coil materials M are mounted so that they can be drawn out one after another. Further, below the drive shaft 40, a receiver seat 41 and a pressure contact 42 that presses the coil material M are provided. On the other hand, the leveler 5 is provided with a guide part 50 facing the uncoiler 4, a delivery part 51 facing the blanking brace 6, and a group of rollers 52 for removing curls in the coil material. .

The embodiment has the above-described configuration, and after the coil material M attached to the uncoiler 4 is pulled out from the uncoiler 4, the tip thereof is guided to the blanking brace 6 via the leveler 5. When performing zigzag punching, for example, as shown in FIG. It rotates and moves the coil material supplied to the mold of the blanking brace 6 in the left and right direction at a desired pitch when viewed in the longitudinal direction, and punches out material from the coil material M in zigzag positions.

The material punched out by the braking press 6 is supplied to a transfer press 7 by a conveyor 8 and processed into products.

In the embodiment, the upper base 3 is only supported at its ends by the rollers 12, 12 with respect to the base l, and the heavy leveler 5 is placed on the upper base 3. It is expected that the center portion of the upper base 3 may bend, but in such a case, it is advisable to additionally install a roller in the center portion as well.

(Effects of the Invention) In the present invention, the upper base on which the uncoiler and leveler are mounted can be rotated horizontally about the vertical axis provided between the base and the coil material unwound from the leveler. At the position of the ranking breath.

It is now possible to move left and right when looking at the longitudinal direction of the coil material. Therefore, the present invention enables punching of material in a zigzag pattern by rotating the upper base in synchronization with the feeding of the coil material, compared to conventional means of moving the mold or moving only the coil material. It has excellent strength and is effective in preventing bending of the coil, making it especially suitable for cutting zigzags from thick plates.

[Brief explanation of the drawing]

Figure 1 is a side view of the entire assembly, Figure 2 is a plan view, and Figure 3 is a side view of the entire assembly.
The figure is a sectional view of the base and the upper base, and FIG. 4 is a plan view showing an example of zigzag cutting.

Claims (1)

[Claims] An upper base is provided to be freely rotatable in the horizontal direction relative to the base, an uncoiler and a leveler are placed on the upper base, and a reciprocating drive mechanism for rotating the upper base is installed between the base and the upper base. Zigzag feeding device for coil material.