Technological Field

The present invention relates to a mechanical system (hereinafter referred to as this in the rest of the description) for use in presses, which enables fast and frequent die exchanges in small or large batch productions

State of the Art:

Heavy machines for cutting, bending, pulling or plastering metals by applying pressure or impact with the help of special dies attached to thereof are called press machines. These machines are continuously being developed and improved with the advancement of technology. The specification describes a system for changing dies in presses.

The die is removed manually in the presses and a new die is assembled for the new batch in the state of the art. Engagement and disassembly of the dies can only be performed when the machine is stopped. Therefore, the operating periods from the end of one batch production to the start of the next batch production prolong, this situation increases production costs and delays deadlines.

SMED (Single Minute Exchange of Dies) Machine production is stopped until the exchange, supply and calibration process of machine and dies equipment is completed before "die exchange in single minutes". In this case, production costs increase and production times are extended. The disadvantages are not being able to make spare for the parts used in machines and dies and breaking down very often, manual die adjustment, damaging dies or losing time during transportation by forklift or crane, no ergonomic operating environment and not being able to do planned maintenance in the current situation since die handling and exchanging systems are not used.

Consequently, an automatic die handling and changing system is required in which the state of the art is exceeded, the disadvantages are eliminated.

Brief Description of the Invention:

The present invention is a mechanical system for automatic die handling and changing in which the state of the art is exceeded, the disadvantages are eliminated.

The aim of the invention is to present a mechanical system that allows the dies in the presses to be exchanged in accordance with automation.

Another aim of the invention is to present a new mechanical system in which the dies in the presses are carried without stopping the operation of the presses.

Another aim of the invention is to prevent production losses and shorten delivery times without stopping the press for a long time during the replacement of machinery, dies and spare parts. Thus, labor and time will be saved.

Another aim of the invention is to prevent die damage and to ensure a longer life of the die. Another aim of the invention is to transform the circular movement from the motor into linear movement with the reducer arm coupling connection and to ensure that the die is taken out or inside by means of rails.

A die carrying arm is used in the invention. The motor provides the back and forth movement by driving the ball bearing screw shaft with the motor in the die carrying arm system. The die is taken out and the die is changed by means of the shaft driven by the rail slide system.

Processes are completed by performing processes by 'holding', 'lifting', 'feeding' movements specific to the dies such as 'feeding' and ‘returning' movements along the X axis, 'centering' movements along the Y axis, 'lifting' and 'lowering' movements along the Z axis. These movements are made by centering pin, table hydraulic piston cylinder, three rolling bearings, a screw shaft and motor.

The centering of the die in the die area inside the drive and the press, the automatic connection of the mold clamping apparatus to the press plates, and the automatic connection of the socket from which the die data is taken to the die are novel aspects with the ball screw system used in automatic die change in the invention.

In order to realize all the objectives mentioned above and which will emerge from the detailed explanation below, the present invention is a die handling and exchanging system that enables automatic handling and exchanging of dies to be used in presses, and characterized in that, it comprises; at least one slide plate on which a ball screw can be rotatably positioned, which is placed on a framework consisting of chassis carrying arm 1 , chassis carrying arm 2, chassis intermediate support parts and adjustable feet, at least one ball screw which is located inside the slide plate and moves the dies in the horizontal direction with the drive coming from the motor, at least one motor that drives the reducer to drive the ball screw in line with the information coming from the socket, at least one socket on the die on which information about the die is contained. Description of the Figures:

The invention will be described with reference to the accompanying drawings, thus the characteristics of the invention will be understood clearly. However, the aim of this is not to limit the invention with such certain embodiments. On the contrary, it is aimed to cover all alternatives, amendments and equivalents which may be contained in the field defined by the accompanying claims. It is to be understood that the details shown are only shown for the sake of illustrating the preferred embodiments of the present invention and presented for both illustrating the methods and for providing description of the rules of the invention and the conceptual features of the invention to be easily understood. In these figures;

Figure - 1 is a perspective view of the inventive die handling and automatic changing system.

Figure - 2 is a top view of the inventive die handling and automatic changing system.

Figure - 3A is a B-B section view of the inventive die handling and automatic changing system.

Figure -3B is a Detail - A view taken from Figure 3A.

Figure - 4 is a perspective view of the press and automatic die changing system.

Figure - 5 is a Detail - B view taken from Figure - 4.

The figures which enable to clarify this invention are enumerated as mentioned in the attached figure and they are given with their names herein below.

Description of the References:

I. Die handling and automatic changing system

10. Adjustable foot

II. Ball screw 12. Chassis carrying arm 2

13. Chassis carrying arm 1

14.Chassis intermediate support part

15. Motor chassis

16. Ball screw nut bearing

17. Ball bearing

18. Slide plate

19. Reducer

20. Motor

21. Coupling

22.Clamp

23. Socket

24. Die

Description of the Invention:

In this detailed description, the inventive die handling and automatic changing system (1 ) is described by means of examples only for clarifying the subject matter such that no limiting effect is created. In the description, the die handling and exchanging system (1 ), this enables the automatic handling and exchanging of the dies (24) for use in the presses, is described.

In Figure 1 , the perspective view of the inventive die handling and exchanging system (1 ) is given, and in Figure 2, the top view is given. Accordingly, the die handling and exchanging system (1) includes the frame parts of the chassis arm 2 (12) and the chassis arm 1 (13) placed on the adjustable feet (10) that can be adjusted in height. The die (24) located in the die area in the press is positioned on the chassis carrying arm 1 (13). The die (24) prepared to be taken into the die area is positioned on the chassis carrying arm 2 (12). In the invention, while the die (24) in the die area continues its process, in order to adjust and prepare the die (24) outside without losing time, it is a very important feature that the chassis carrying arm 1 (13), where the die (24) is located in the die area, and the chassis carrying arm 2 (12), where the die (24) to be adjusted and prepared, are located on the same skeleton. The chassis carrying arm 2 (12) and the chassis carrying arm 1 (13) sections are supported by the chassis intermediate support part (14). There is a slide plate (18) containing a ball screw (11 ) on the chassis intermediate support part (14). The ball screw (11 ) moves the dies (24) in the horizontal direction by performing a rotational movement. The ball screw (11 ) is housed in a ball bearing (17) with the ball screw nut bearing (16) inside the slide plate (18). In this way, the ball screw (11 ) can perform the rotational movement within the slide plate (18).

In Figure 3A and Figure 3B, views showing the drive and motion transmission elements of the die handling and automatic exchanging system (1 ) are given. Accordingly, the movement required for the rotation of the ball screw (11 ) is driven by a motor (20) in the light of the information received from the socket (23) with the help of a sensor. Said motor (20) drives a reducer (19), while the reducer (19) performs the speed-torque adjustment of the motor (20) drive, the linear motion is transferred to the ball screw (11 ) with a coupling (21). The motor (20) is positioned on a motor chassis (15) in the invention.

As can be seen in Figure - 4, there are two dies (24), one in the die area in the press and one outside the die area. The die area mentioned here is defined as the volume where the die (24) is located in the press in the middle. While the die (24) in the die area is working in the press, the second die (24) outside the field is prepared by making adjustments and the die (24) in the die area continues to work with the press, and the work is carried out during the adjustment time. After the die (24) is placed, the automatic die exchanging system is started. First, the sockets (23) of the die (24) in the die area are disassembled, then the die clamping of the die (24) in the die area is released and the hydraulic cylinders in the press table lift the die up to the distance of the slide plate (18). Then, the die (24) in the die area is moved horizontally and taken outside with the help of the drive taken from the ball screw (11 ), at the same time, the adjusted die (24) outside the die area is moved in the horizontal position and taken into the die area.

In Figure 5, a view showing the die area in the press is given. Here, the clamps (22) on the die (24) and the socket (23) where the die information is located can be seen clearly. The information on the socket (23) on the die (24) is read through sensors and transmitted to the motor (20) in the invention. In the invention, there are the slide system used during the taking of the die (24) to the die area, and the hydraulic cylinders that provide the die movement, which are located on the table on the floor of the die area in the press.