JPS60133901A - Opposed die type press - Google Patents

Abstract

PURPOSE:To obtain an opposed die type press small in size and improved in edging efficiency by arranging a slide guide capably of adjusting the position of a rolling material in its width direction and housing a slide provided with a die capably of freely going into and out of the slide guide at the front end in the slide guide. CONSTITUTION:When a worm 6 is rotated after locating the center O' of an eccentric shaft 15 at the opposite side of a rolling material 1 with respect to the rotating center O of the shaft 15, a worm wheel 3 is rotated to move a screw- threaded shaft 5 to the width direction of material 1. Therefore, a slide guide 8 is moved in a fixed frame 2 to the width direction of material 1 through a piston rod 4, and a die 11 attached to a slider 10 is brought closer to the material 1 to position it. Successively, when the shaft 15 is rotated through a universal joint while being in tight contact with the hole 13 of a slide block 14, the center O' of shaft 15 revolves around the center O to protrude the slider 10 to the direction of the material 1 thereby edging the material 1 by the die 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a compact opposed press with high width reduction efficiency, in which the mass of the part driven by an eccentric shaft is reduced.

[Prior art]

Figure 1 shows an outline of a conventional opposed press, with four eccentric shafts, a, a, and b, divided into left and right frames.
is drivably supported, connecting rods c and c' facing in the line direction are pivotally connected to the eccentric shafts b and b',
The connecting rods c, c' have shafts e, e' at their tips.
Yoke d that rotates left and right around
The lower ends of the yokes d and d' are pivotally connected, and molds f and f' that can slide left and right are connected to the upper ends of the yokes d and d'. By changing the position of c', the distance between the dies f and f' can be adjusted to iJ1 in accordance with the width of the rolled material.

When reducing the width of the rolled material, the drive devices j and j' are driven to drive the binions j and j' and the gears through the eccentric shafts f and b.
By rotating the connecting rods c and c' and moving the connecting rods c and c' oppositely to the left and right, the yokes d and d' are simultaneously moved inward and outward in the width direction of the rolled material to increase the width pressure F of the rolled material. It is carried out.

Note that Q, I;/ are bevel gears, and m is a connecting shaft.

However, in such conventional opposed presses,
In order to give a considerable width reduction J to the rolled material, a mold f,
f', yaws d, d', and connecting rods c, c' must have sufficient strength, and as a result, they are large and eccentric to drive them. Axis.

b' A very large driving force is also required.

Therefore, the conventional opposed type press has high equipment costs and high running costs.

[Purpose of the invention]

An object of the present invention is to provide an opposed press that is small in size, has low equipment cost, and has high width reduction efficiency.

[Structure of the invention]

In the present invention, a slide guide movable in the width direction of the rolled material is arranged in a position-adjustable manner on the side of the rolled material passing line in a fixed frame through which the rolled material can pass, and the position of the slide guide is adjustable. By storing a slider with a mold at its tip so that it can be extended and retracted by an eccentric shaft,
This is a counter-type press that has a smaller driving part during width reduction and improves width reduction efficiency.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 2 and 3 show an embodiment of the present invention, in which a rolled material 1
A worm wheel 3 is thrust-supported and vertically disposed at both side ends of the rolling material 1 passing line of the fixed frame 2 through which the rolled material 1 passes, and each worm wheel 3 is provided with a screw having one end shaped like a piston head 4. The shafts 5 are hinged so that the piston heads 4 face each other, and the screw shafts 5 can be opened and closed in the width direction of the rolled material 1 by rotation of the worm 6.

At the piston head 4 portion of each screw shaft 5, a box-shaped slide guide 8, which is provided with a cylinder 7 at 5.1 and can slide in the width direction of the rolled material 1 within the fixed frame 2, is installed at the cylinder 7 portion. After fitting, oil is inserted into the cylinder chamber 9 formed by each cylinder 7 and each piston head 4, and the slider 10 is inserted into the opposite cylinder 711M of each slide guide 8 in the width direction of the rolled material 1. Each slider 10 is housed so that it can slide, and a mold 1 is attached to the end surface of each slider 10 facing the rolled material l.
1 is provided for each.

A quadrangular prism-shaped cavity 12 is provided inside each slider 10, and a slide block 14 having a hole 13 bored in the running direction of the rolled material 1 is slid in the direction perpendicular to the rolled material 1 in each of the cavities MI12. The eccentric shafts 15 are respectively housed so as to be movable, and the eccentric shafts 15 are inserted through the holes 13 of the respective slide blocks 14.
Both sides of the eccentric shafts 15 are rotatably fixed to the slide guide 8 by bearings 16, and one end of each eccentric shaft 15 is connected to a drive device via a universal joint 17.

In the figure, reference numeral 18 indicates a clearance for moving the eccentric shaft 15 provided on the fixed frame 2, and reference numeral 19 indicates a seal.

In the above description, since the amount of width reduction is determined by the stroke of the slider 10, the amount of eccentricity of the eccentric shaft 15 is taken into consideration.

Set to a certain size.

Next, the operation of the present invention will be explained.

First, the position of the slide guide 8 is determined according to the width of the rolled material 1 to be reduced in width. In this case, by rotating the eccentric shaft 15,
The center 0' of the eccentric shaft 15 is positioned behind the rolling material 1 opposite to the rotation center 0 of the eccentric shaft 15, the slider 10 is positioned deep in the slide guide 8, and the mold 11 is kept in a retracted state. When the worm 6 is rotated in this state, the worm wheel 3 is rotated, but since it is thrust-supported, the screw l11 hinged at the center of the worm wheel 3 rotates.
15 moves in the width direction of the rolled material 1, the piston head 4 rotates the worm 6 m1 in the direction closer to the rolled material 1. Since a slide guide 8 is attached to each piston head 4 via the cylinder 7 section, each slide guide 8 moves within the fixed frame 2 in the direction of the rolled material 1, and the tip of the mold 11 moves toward the rolled material 1. Approach 1. The stopping position of each slide guide 8 is set at such a position that the rolled material 1 can be rolled down to a desired width when the tip of the mold 11 protrudes the most due to the rotation of the eccentric shaft 15.

Next, when the eccentric shaft 15 is rotated by the drive device via the universal joint 17, the eccentric shaft 15 is rotated in close contact with the inside of the hole 13 of the slide block 14.
5 rotates around the rotation center 0 of the eccentric shaft 15, the slide block 14 also moves around the rotation center 0.

The slide block 14 is located at the empty part 1 of the slider 10.
2 so as to be able to slide vertically with respect to the rolled material 1, and the eccentric shaft 15 is accommodated in the slide guide 8.
Since the rotating eccentricity m is supported by the bearing 16,
When the center d of the slider 15 is located at the cylinder 71III with the rotation center 0, the slider 10 slides to be drawn into the slide guide 8.

When the center 0' moves above the rotation center 0, the slide block 14 slides upward within the cavity 12 and causes the slider 10 to protrude in the direction of the rolled material 1.

When the center 0 shifts to the rolled material 1111 with the rotation center 0,
The slide block 14 slides downward within the cavity 12 and causes the slider 10 to further protrude in the direction of the rolled material 1, and the width of the rolled material 1 is reduced by the die 11 provided on the slider 10. When the center d is located on the straight line connecting the rotation center 0 and the rolled material 1, the slider 10 and the mold 11 are in the most protruded state.

Furthermore, when the center d reaches below the rotation center 0, the slide block 14 slides downward within the cavity 12 and draws the slider 10 into the slide guide 8, so that the center d is located below the rotation center 0 and the screw shaft 5. When the slider 10 is positioned between the center and the center, the slider 10 is positioned deep inside the slide guide 8,
The stroke action ends.

Further, the rolled material 1 is sent out a certain distance, and the width reduction in IiJ is performed again.

In the above, the reaction force when rolling down the width of the rolled material 1 with the die 11 is as follows: slider 1o → slide block 14 → eccentric shaft 1
5→bearing 16→slide guide 8→cylinder chamber 9→piston head 4→screw shaft 5→worm wheel 3→transmitted to 1111 of fixed frame 2, and finally supported by fixed frame 2. Furthermore, if an excessive load occurs during width reduction of the rolled material 1, the oil in the cylinder chamber 9 is drained to prevent overload +L, so it is safe.

4 and 5 show other embodiments of the present invention, in which the hollow portion l of the slider 1d has substantially the same configuration as the embodiment described above.
A pitman 20 is pivotally mounted in the bin 21, and a hole 13' is bored at the other end of the pitman 20 in the running direction of the rolled material 1.
An eccentric shaft 15 similar to that of the previous embodiment is passed through the inside. In FIGS. 4 and 5, the same reference numerals as in FIGS. 3 and 4 indicate the same parts.

In the case of this embodiment as well, due to the change in the relative position of the center d of the eccentric shaft 15 with respect to the rotation center 0, the pitman 20 looks up, the slider 16 and the die 11 are moved left and right, and the width of the rolled material is reduced. can.

Note that the opposed press of the present invention is not limited to the above-described embodiments, and may include a spring stored in the cylinder chamber instead of sealing oil within the scope of the present invention. It goes without saying that various changes can be made.

〔Effect of the invention〕

As described above, according to the opposed type press of the present invention, the slider having a mold at the tip can be protruded and retracted by the eccentric shaft into the slide guide arranged in the fixed frame so that the device It11 can be adjusted. Because it is stored, the only parts that move when lowering the width Jf are the entire wall, slider, and slide block, which makes the machine smaller and smaller than the conventional opposed press. Since the driving part for the width pressure F becomes smaller, the efficiency of the width pressure F is increased and the driving force of the eccentric shaft can also be reduced.
It exhibits various excellent effects such as being able to reduce equipment costs and running costs.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional opposed type press, Fig. 2 is an explanatory diagram of an embodiment of the opposed type press of the present invention, Fig. 3 is a view taken from the ■-■ direction of Fig. 2, and Fig. 4 5 is a partial explanatory diagram of another embodiment of the present invention, and FIG. 5 is a view taken along the v-v direction of FIG. 4. l is a rolled material, 2 is a fixed frame, 3 is a worm wheel, 5 is a screw shaft, 6 is a worm, 8 is a slide guide, 1
0.1 (1' is a slider, 11 is a mold, 14 is a slide block, 15 is an eccentric shaft, and 20 is a pitman.

Claims (1)

[Claims] l) A slide guide movable in the width direction of the rolled material is disposed on the side of the rolled material passing line in a fixed frame through which the rolled material can pass, and the position of the slide guide is adjustable. A facing type press characterized in that a slider provided with a mold is housed so that it can be extended and retracted by an eccentric shaft.