JPH02235733A - Device for treating or processing laminated or sheet-like material - Google Patents

Abstract

PURPOSE: To adapt the operation of a lower platen to the operation of a supply element 18 for sheets in every working cycle of a press by making up a rocking drive device of a device which transmits an action to a crank shaft from a wheel and has the axial line of the crank shaft deflected with the axial line of a wheel. CONSTITUTION: A lower platen 1 has a semicylindrical connection part 2 which is articulated to the lower part of the platen 1 and acts as the upper sheet of a crank lever 3. The crank lever 3 is form of an upper arm 4 and a lower arm 6, and the upper arm 4 has a cylindrical connection part 5 connected to the lower part of the arm 4, while the lower arm 6 has another cylindrical connection part 7 connected to the lower part of the arm 6. A wheel 12 is fitted to a rotary shaft 14 and has a long groove 15 into which the tenon or protrusion 16 of a crank shaft 10 is introduced. The wheel 12 has its rotating speed increased or decreased by a distance 17 between rotary shafts and is rotated once in each of the working cycles of a press and rotated once in each of the working cycles by driving the crank shaft 10.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Industrial Field of Application) The present invention relates to a processing or processing apparatus for laminated or sheet-like materials.

(Prior Art) A sheet constituted by a nipper rod displacement device for fixing a sheet material, a movable lower platen, a fixed upper platen, a sheet material supplied between these platens, and a movable platen control mechanism. Material processing equipment is well known.

This movable platen has a number of control mechanisms.

One known control mechanism is to operate a movable platen by
This is done by a crankshaft that is driven at a constant speed and acts on a crank lever via a connecting rod.

According to another mechanism, actuation of the lower platen is accomplished by a direct drive cam integral to the crank lever. This device uses a cam mounted on a shaft located between several groups of crank levers. In this embodiment, the motion produced by the cam is transmitted to the group of crank levers by a rolling element provided on said group of crank levers, which crank levers are used for adjusting the travel stroke, speed and acceleration conditions of the lower platen. It is operated according to the cam outline formed in the cam.

However, this device suffers from drawback (d r aw
b a c k), and this drawback must be provided with a mechanism that always ensures contact of the rolling elements of the cam, complicating the device and making it difficult to assemble.

In particular, known devices dealing with this are provided with a control shaft driven by a rotary shaft which receives its movement from a drive via a worm wheel mechanism or a locking drive.

The device has a locking drive consisting of a rotating toothed segment on a rotating shaft fixed to a wheel at a given distance from the rotating shaft, and a sprocket fixed to said rotating shaft.

According to the locking drive, when the worm rotates at a constant speed, the crankshaft has a variable speed that is slow in the lower position of the branton and faster in the upper position close to the fixed branton position, timed to match the movement of the nipper rod. It will be done.

In this manner, the movement of the lower platen is matched to the movement of the sheet feeding elements during each processing cycle of the press. This sheet feeding element consists of a nipper drive rod.

In these bars, the pressure surfaces of the nippers are arranged to improve aerodynamic properties on both the top and bottom of the bar.

OBJECTS OF THE INVENTION The object of the invention is to obtain a locking drive having the above-mentioned characteristics without the use of toothed segments and subrockets.

According to the invention, the locking drive is constituted by a device which transmits the motion from the wheel to the crankshaft, the axis of the crankshaft being offset with respect to the wheel axis.

According to a preferred embodiment according to the invention, the device for transmitting motion from the wheel to the crankshaft is arranged at one end of the crankshaft and includes a drive projection offset with respect to the axis of the crankshaft and a drive projection of the wheel. The groove is formed on a side surface adjacent to the groove and into which the protrusion is fitted.

In this way, when the wheel rotates at a constant speed, the crankshaft is coupled eccentrically, thereby driving the crankshaft at a variable speed. During its operation, the crankshaft driving protrusion performs a cyclic movement along the wheel groove.

Further, the driving grooves and protrusions may be provided with sliding and rolling devices to facilitate their displacement and vibration, thereby making it even more effective.

According to another embodiment of the invention, the device for transmitting motion from the wheel to the crankshaft consists of one or more levers connected via a connecting rod.

(Example) FIG. 1 shows a device for driving a lower platen in a conventional platen press. On the lower platen 1,
A semi-cylindrical connecting part 2 is attached to the lower part thereof. Only two of them are shown in the drawing. Each semi-cylindrical articulation part 2 serves as an upper seat of the crank lever 3.

The crank lever 3 is formed by an upper arm 4 and a lower arm 6, the upper arm 4 has a cylindrical connecting part 5 connected to its lower part, and the lower arm 6 has another cylindrical connecting part 7 connected to its lower part. has been done. The lower part of the crank lever 3 is placed on a support 8 placed on a tapered wedge 9.

When the crankshaft 10 rotates at a constant speed, the connecting rod 11 transmits longitudinal horizontal movement to the crank lever 3, thereby driving the lower platen 1 to vertically move up and down.

FIG. 2 shows a variable operation control mechanism for the crankshaft 10,
In particular, the control mechanism is constituted by a wheel 12 driven by a worm 13.

As shown in FIG. 3, a wheel 12 is mounted on a rotating shaft 14 and has a slot 15 into which a tenon or projection 16 of the crankshaft 10 is inserted.

The wheel 12 rotates once during each working cycle of the press, increasing or decreasing its rotational speed depending on the distance 17 between the rotating axes, and drives the crankshaft 10 so as to rotate once during each working cycle.

In this way, the movement of the lower platen 1 is matched to the movement of the sheet feeding element 18 in each processing cycle of the press. The feeding element 18 consists of a nipper support rod, the pressure surfaces of the nipper being arranged one hundred percent above and below the support rod 18 in order to improve the operation of the pneumatic pressure (FIG. 1).

As will be appreciated, the true speed-up and slow-down of the rotation of the crankshaft and that of the travel of the movable platen are
is due to the tractive force exerted on the tenon or tenon 16 of the crankshaft 10 during its rotation.

Many details of the mechanisms described herein may be changed without departing from the scope of the invention. For example, the tenon of the crankshaft 10 can be a slide, a roller, or the like.

The groove 15 of the wheel 12 can be provided in the crankshaft 10 supporting the wheel 12, either integrally or as an insert. The drive elements can also be arranged in reverse. That is, the crankshaft 10 can be configured with a groove, and the wheel 12 or its rotating shaft 14 can be configured with a drive protrusion, tenon, slide, roller, etc.

Another drive configuration in the drawings can be obtained by replacing the lever and the connecting rod connected to the wheel 12 and the crankshaft 10 with grooves and projections, whose central offset position allows the cyclic , it is possible to change from constant operation to variable operation.

It is also conceivable to use conventional elastic devices to absorb the mechanical energy generated by the drive system of the press.

The materials, shape, dimensions of auxiliary mechanisms, equipment for achieving the purpose of the invention, machines to which the invention is applied, and other accessories of the invention can be freely selected without departing from the gist of the invention. .

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view with a part removed of the platen press apparatus of the present invention, FIG. 2 is a front longitudinal sectional view of the control mechanism of the movable platen, and FIG. 3 is a longitudinal sectional view of the control mechanism of FIG. FIG. 1... platen, 2, 5, 7... semi-cylindrical connecting part,
3... Crank lever, 4... Upper arm, 6... Lower arm, 8... Support part, 9... Wedge, 10... Crankshaft, 11... Connecting rod, 12... Wheel 13... Worm, 14... Concave roller, 15... Groove, 16... Protrusion, 17... Center distance, 18... Rod.

Claims (1)

[Claims] 1. A displacement device for the nipper rod 18 that fixes the sheet material, a movable lower platen 1 and a fixed upper platen 2, the sheet material supplied between these two platens, and the central connecting part is a crankshaft. The crankshaft 10 has a plurality of crank levers 2, 5, and 7 that are moved in the horizontal direction by a drive device, a worm 13, and a wheel 1.
When the worm 13 is rotated at a constant speed by the rotating shaft 14 and the locking drive mechanism driven by the rotating shaft 14 which is actuated via the crankshaft 2, the crankshaft 10 has a low speed when it is located below the platen, and a high speed when it is in the upper position near the fixed platen position. Processing of laminated or sheet material having a movable platen control mechanism rotating at a variable speed and timed to the movement of the nipper rod 18, with the pressure surface of the nipper rod 18 of the nipper being located between the upper and lower surfaces of the rod. Or, in a processing device, the locking drive device moves from the wheel 12 to the crankshaft 10.
A device for processing or processing laminated or sheet-like materials, characterized in that the device transmits motion to the machine and the axis of the crankshaft 10 is offset from the axis of the wheel 12. 2. A device for transmitting motion from the wheel 12 to the crankshaft 10 is arranged at one end of the crankshaft 10 and
Drive lug 16 and wheel 1 offset with respect to the axis of 0
A groove 15 provided on the adjacent surface of 2 and into which the protrusion 16 is fitted.
The apparatus for processing or processing laminated or sheet-like materials according to claim 1, characterized in that it is comprised of: 3. The processing or processing of laminated or sheet-like materials according to claim 1 or 2, characterized in that a sliding and rolling device can be added to the drive groove 15 and the protrusion 16 to facilitate their displacement and vibration. Device. 4. A device for transmitting motion from the wheel 12 to the crankshaft 10 is connected via a connecting rod.
The apparatus for processing or processing laminated or sheet-like materials according to claim 1, characterized in that it is constituted by one or more levers.