JPH01271100A - Sheet press - Google Patents

Abstract

PURPOSE: To simplify the structure of a sheet press by combinedly constituting heating plates for pressing a sheet, feeding device and unloading device. CONSTITUTION: The unloading device 5 having a suction cup is provided and the feeding device 4 having a clamping device is fitted to the side of the unloading device 5 to constitute the sheet press. Firstly, the sheet 3 coming in the press, is laid between the heating plates 1, 2 with the feeding device 4. Successively, the pressed sheet 3 is removed from the heating plates 1, 2 with the suction cup in the unloading device 5 and at the same time, the sheet 3 is drawn in between the heating plates 1, 2 with the clamping device. In such a way, the feeding device 4 and the unloading device 5 can feed the pressing sheet at one time of simultaneous working as the combined body. By this constitution, the structure of the sheet press can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sheet press, particularly a sheet press for coated sheets, which press has a heating plate for pressing the sheet to be treated, and a sheet press for pressing the sheet being introduced into the press. It consists of a sheet feeding device that can be placed between the hot plates of the press and a suction cup-like conveyor that can remove the pressed sheets from between the hot plates of the press.

[Prior Art] A conventional sheet press is equipped with a sheet feeding device and a sheet unloading device as separate structures of press equipment.

[Problem to be solved by the invention]

An object of the present invention is to provide a new type of sheet press with a simpler structure than conventional sheet presses. The sheet press according to the invention is characterized in that it is equipped with a feeding device including a gripping device, which gripping device is mounted on the side of the unloading device and grips the edge of the incoming sheet so as to be placed between the hot plates of the press. It is possible for an unloading device to simultaneously remove the pressed sheet from between the hot plates of the press. The present invention provides a simple feeder/unloader combination that both feeds the sheet into the press and unloads the pressed sheet in one simultaneous operation. The press has a simplified structure compared to prior art presses, so it has significant cost advantages.

[Means to solve the problem]

A preferred embodiment of the invention is characterized by the provision of a gripping device comprising jaws, which are closed by compression on the sheet edge. The simple structure of the jaws is easy to adjust and the gripping force is sufficient to pull the sheet into the press.

Another embodiment of the invention is characterized in that the front face of the press has a tiltable conveyor platform structure, with the edges of the platform provided with ramps terminating in the lower heating plate of the press, resulting in entry into the press. The trailing edge of the sheet can extend along the ramp from the conveyor platform to the hot plate. The trailing edge of the incoming sheet passes all the way over the conveyor table and ramp to the lower heated plate of the press, where the sheet is lowered to begin the pressing process.

A third embodiment of the present invention is characterized by having a conveyor table q that is adopted on the front side of the sheet press and that is linked with the feeding operation to the press. It also provides support for the sheet and separates it from the press before the sheet is pressed.

Yet another embodiment of the invention provides a conveyor platform feed operation;
It is characterized by an opening actuation of the jaws and a return actuation of the conveyor platform which is adjustable to drop the sheet to the desired position on the hot plate. This provides a straight line of the sheet to the press, thus avoiding scratching of one edge of the sheet.

[Examples and effects]

Next, the present invention will be described in detail using examples with reference to the accompanying drawings.

The sheet press has a heating plate 1 that presses the sheet 3 between them.
, 2 included. The press is equipped with a feeding device 4 for sheets 3, by means of which the sheets entering the press are placed between the hot plates of the press. Furthermore, the press is equipped with an unloading device 5 with a suction cup that allows the pressed sheet 3 to be removed from between the heating plates 1, 2. The feeding device 4 includes a gripping device, which is attached to the side of the unloading device 5, and when the unloading device 5 removes the pressed sheet 3 from between the heating plates 1 and 2 of the press, the sheet 3 is heated. A sheet 3 can be drawn between the plates 1, 2. The gripping device 4 includes jaws that are closed by compression against the edges of the sheet 3. The conveyor platform 6 at the front of the press is tiltable and has a platform edge provided with a ramp 7 terminating in the heating plate 2 on the lower side, the trailing edge of the sheet 3 entering the press is guided along this ramp onto the conveyor platform. 6 to the heating plate 2.

Referring to Figure 5, the conveyor platform at the front of the sheet press is movable along the feed motion into the press, thus providing support for the sheet being pressed and allowing exit from the press prior to pressing the sheet. . The feed motion of the conveyor platform, the opening motion of the jaws, and the return motion of the conveyor platform are adjustable to drop the sheet into a desired position on the hot plate.

The operation of the press is as follows.

As shown in FIG. 1, the press is open and the feeder 4
/The linkage of the unloading device 5 is transferred between the presses until the jaws of the feed device 4 are aligned with the edges of the incoming sheet.

According to FIG. 2, at the same time that the suction cup of the unloading device 5 picks up the pressed sheet and lifts it from the lower heating plate 2, the feed device 4 grabs the sheet. At the same time, the conveyor table 6 is tilted relative to the press, and the ramps at the front edge of the conveyor table 6 press against the front edge of the lower heating plate 2 of the press.

According to FIG. 3, the feeder/unloader mechanism 4.5 is removed from the press. However, as soon as a new sheet reaches the correct position in the press, the mechanism stops. The feed device 4 now drops the leading edge of the new sheet 3 onto the heating plate. The mechanism continues to move away from the press and stops at the limit position.

According to FIG. 4, the press can be closed while the feeder/unloader mechanism 4.5 continues the release operation after dropping a new sheet.

When the mechanism reaches its limit position, the suction cup releases the breakaway sheet onto the transporting roller conveyor.

According to FIG. 5, in this embodiment of the invention, the sheet 3 is pulled by the gripping device 4 and supported by the conveyor platform 6 into the press.

The remaining functionality is similar to that shown in FIGS. 1-4.

[Brief explanation of the drawing]

1 to 4 are schematic diagrams showing the operation of a press, and FIG. 5 is a schematic diagram of a press according to another embodiment of the present invention. 1.2... Heating plate, 3... Sheet, 4... Feeding device (gripping device), 5... Unloading device, 6... Conveyor stand, 7... Lamp.

Claims (5)

[Claims] (1) heating plates (1, 2) for pressing the sheet (3);
The sheet entering the press is transferred to the heating plate (1, 2) of the press.
A sheet press, especially for coated sheets, comprising a feeding device (4) which can be placed between and a suction cup-like unloading device (5) which can remove the pressed sheet from between the hot plates of the press. The feeding device includes a gripping device (4) mounted on the side of an unloading device (5), which unloading device (5) removes the pressed sheet (3) from the hot plate (1, 2) of the press. At the same time as removing the heating plate (1, 2), the gripping device
) A sheet press characterized in that a sheet (3) can be drawn in between. 2. Sheet press according to claim 1, characterized in that the gripping device (4) comprises jaws, which are closed by compression against the edges of the sheet (3). (3) The conveyor platform (6) at the front of the press is made tiltable with a platform edge provided with a ramp (7) terminating in the lower heating plate (2) of the press, so that the rear edge of the sheets entering the press is 3. Sheet press according to claim 1, characterized in that the sheet press runs from the conveyor platform (6) to the heating plate (2) along its ramp. (4) Since the conveyor table in front of the press is movable to the press along with the feeding operation, it provides support for the sheet (3) to be pressed, and presses the sheet (3) prior to pressing. The sheet press according to claim 1 or 2, wherein the sheet press is configured to be able to be withdrawn from the sheet press. (5) The feeding operation of the conveyor table (6), the opening operation of the jaws (4), and the return operation of the conveyor table are
5. The sheet press according to claim 4, wherein the sheet press is adjustable so as to be dropped onto a desired position on the heating plate (2).