JPS6027546Y2 - Feed roll equalizer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an equalizer device for a feed roll of a device for feeding plate material to be fed to a press.

The device for feeding the plate material is, for example, a roll feed, a pinch roll of a leveler, or the like.

Conventional roll devices have a structure in which a gear provided at one end of the roll is used to clamp and release the roll using an air cylinder that is driven by a gear.

In this structure, when the width of the plate material becomes narrower to some extent compared to the roll width, the pair of rolls open toward the gears 4 and 5 due to the reaction force of the gears 4 and 5, as shown in Fig. 1, and as a result, the plate material There was a strong tendency for meandering and poor feeding accuracy.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional art, and will be explained below based on the drawings, which are one embodiment of the present invention.

In FIGS. 2 and 3, the lower roll 3 is rotatably held by a machine body 6, and is driven by being connected to a motor 7 fixed to the machine body 6.

The upper roll 2 is rotatably held by a bracket 10 facing the lower roll 3, and a gear 4 fixed to the end of the upper roll 2 meshes with a gear 5 fixed to the lower roll 3. There is.

A piston 9 and a rack 11 are fixedly installed above the bracket 10, and the piston 9 is adapted to a fluid pressure cylinder 8 that is fixed to the body, and can be moved up and down by fluid pressure.

The equalizer shaft 13 is rotatably held in the body 6, and pinions 12 fixed at both ends mesh with the rack 11.

The effect will be explained below.

The plate material to be fed to the press is transported by the action of the hydraulic cylinder 8.
The lower roll 3, which is sandwiched between the rolls and drives the motor 7, and the upper roll 2 are rotated via gears 5 and 4, and the plate material is fed.

At this time, the gears 4 and 5 tend to be separated from each other, so if the width of the plate material is narrower than the length of the rolls, the two rolls will not be parallel to each other but will be inclined, as shown in FIG.

In the present invention, when the upper roll 2 is urged toward the lower roll 3 by the action of the fluid pressure cylinder 8, the upper roll 2 is equally urged on both ends through the rack 11, the pinion 12, and the equalizer shaft 13.

Therefore, the roll does not tilt as described above.

Since the present invention has the above-described configuration, both ends of the upper roll 2 are equally biased, so the upper roll 2 is not tilted and is narrow compared to the length of the roll.

Even plate material 1 is clamped evenly, without meandering,
This also has the effect of improving feeding accuracy.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the roll section in the conventional device, Fig. 2 is an explanatory diagram of the structure, and Fig. 3 is a vertical cross-sectional view of Fig. 2. 1 is a plate material, 2 is an upper roll, 3 is a lower roll, and 4 is a gear. , 5 is a gear, 6 is a fuselage, 7 is a motor, 8 is a fluid pressure cylinder, 9
is the piston, 1° is the bracket, 11 is the rack, 12 is the binion, and 13 is the equalizer shaft.

Claims (1)

[Scope of utility model registration request] A device that holds the plate material to be fed to the press by sandwiching it between a lower roll that is rotatably supported on the machine body and an upper roll that faces from above and is biased downward, keeping both the upper and lower rolls parallel. In the equalizer device, a bracket rotatably supports both sides of the upper roll, a piston and a rack are fixedly installed above the bracket, and the piston is adapted to bias the piston downward. 1. An equalizer device for a feed roll, comprising: a fluid pressure cylinder rotatably supported by a machine body; and an equalizer shaft having pinions fixedly attached to both ends thereof to engage with the rack, respectively.