JPH0781816A - Device for temporarily storing material supplied for working facility - Google Patents

Abstract

PURPOSE:To smoothly supply the material, and to smoothly perform each work in the case where a difference of working process speed is generated between continuous working processes by temporarily storing the continuous material between two working processes. CONSTITUTION:Frames 1, 2 are provided between two different working processes close to each working process, and the frames 1, 2, which are respectively provided with each working process and guide rollers R1, R2, are arranged on a material supplying line. Furthermore, an oscillating arm 4, which is provided with a presser roll 5 for abutting on the upper part of a material to be fed, is provided in one of the frames. An encoder 7 is fitted to an end of a support shaft of this oscillating arm 4 to detect quantity of deflection of the material with this encoder 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a smooth material supply by temporarily storing continuous material between two working steps when there is a difference in working step speed in continuous working steps. The present invention relates to a temporary storage device for feed materials in a processing facility that enables smooth work.

[0002]

2. Description of the Related Art When supplying a continuous material from one work process to another work process such as a press working or a molding process, the material supply speed is designed so as to match the work time in each work process. is doing. However, the working time in each process may be slightly different due to various troubles. Even in such a case, a pit that temporarily stores the material between each work step is provided on the material supply line so that the material can be supplied and the processing in each step can be performed while keeping the line speed constant. ing. Photoelectric tubes are installed in the pit at constant heights, and the deflection amount of the material is detected depending on which photoelectric tube detects the deflection of the material.

[0003]

A pit for temporarily storing continuous material is provided between the processing steps and on the material supply line by excavating the floor surface, which requires a large amount of work and requires a high facility cost. It has the drawback of being bulky. Also,
It cannot be installed if there is no room to excavate this pit between the existing processing steps. Moreover, many sensors such as photoelectric tubes are required.

It is an object of the present invention to enable a continuous operation by temporarily storing a material with a simple mechanism without excavating a pit even if a processing time difference occurs in each operation step which is continuously arranged.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and between two different working steps,
A gantry is provided close to each work process, a gantry equipped with each work process and a guide roller is arranged on the material supply line, and one gantry is equipped with a pressing roller that is in contact with the upper part of the feed material. The gist of the present invention is that a movable arm is provided to be swingable, an encoder is attached to a support shaft end of the swing arm, and the amount of bending of the material is detected by the encoder.

[0006]

Function: A part of the feed material is received by one of the two pedestals installed between the opposing work steps and located on the material supply line, and is shaken by the tension of the material. Support the moving arm. Since the encoder is attached to the support shaft end of the swing arm, the change in the tension of the material is represented by the swing angle of the swing arm, which is detected by the encoder. Therefore, even if the pit is not excavated during the working process, the feed material can be temporarily stored between the opposing stands with the simple device, and the encoder can detect the amount of deflection of the material. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A temporary storage device for a feed material in a processing facility of the present invention will be described below based on an embodiment in which a plate-shaped material is continuously supplied from a press machine to a molding machine as shown in the drawing. In the figure, A is a required press machine, B is a molding machine installed at a predetermined distance from this press machine, and there is a difference in processing speed between the press machine A and the molding machine B. When the processing pitch speed of the molding machine B becomes slower than that of the press machine A, the material storage mechanism C that temporarily stores the material is provided.

The material storage mechanism C is provided with a pair of pedestals 1 and 2 on a material supply line with a required space therebetween, and guide rollers 1R for guiding the material W on the feed side to the pedestals 1 and 2, respectively. , 1R ... and guide rollers 2R, 2R ... Which receive the material on the receiving side are rotatably provided, and these guide rollers 1R, 2R are positioned on the material supply line L.

The guide rollers 1R and 2R have a required diameter and length so that they can be smoothly supported and delivered regardless of whether the material W continuously supplied is a flat plate or a rod. The arrangement is made so that the material can hang down in a loop shape, for example, as shown in FIG. 1, the mounting positions have different heights.

On the other hand, the pedestal 1 on one side, for example, after the material is subjected to the process of the press A, is fed to the pedestal 1 at the end of the support shaft 3 supported between the guide rollers 1R, 1R.
The pressing roller 5 is rotatably supported at the tip of the swing arm 4 in a direction orthogonal to the material supply line L, and a balance weight 6 is provided at the other end of the arm.

Then, the continuous material W comes into contact with the upper surfaces of the guide rollers 1R, 1R from the press machine A, and then the receiving roller 5
The material W is conveyed to the guide rollers 2R, 2R and the molding machine B via the lower part of the sheet W.
The swing arm 4 swings according to the transport speed of the
In between, the material is temporarily bent in a loop to absorb the imbalance in the material feed rate.

Therefore, the feed tension of the material W is always applied to the swing arm 4 via the receiving roller 5, and the load applied to the receiving roller 5 is balanced by the balance weight. When the swing arm swings, the support shaft 3 also swings.

Since the encoder 7 is attached to one end of the support shaft 3, the encoder 7 detects the swing angle of the support shaft when the swing arm swings when a difference in material feeding occurs. , The amount of deflection of the material is detected.

The material W can be sent from the molding machine toward the press machine.

Therefore, in order to control the processing speed of the molding machine B to be optimum in the apparatus configured as described above, first, the processing speed of the molding machine is changed for each angle of the encoder 7. As a result, when the processing speed of the molding machine is slower than the material feeding speed, the material W becomes a loop between the pedestals 1 and 2. When this loop amount increases, the swing arm lowers and the encoder detects it. As a result, when the processing speed of the molding machine is increased, the loop amount is reduced.

On the contrary, when the processing speed of the molding machine is faster than the material feeding speed, the arm moves up, and when the loop amount is less than the set value, the swing of the arm is detected by the encoder so that the processing speed of the molding machine becomes slow. Is set to always match the processing speed of the molding machine with the material feeding speed, thereby improving the productivity.

[0017]

The temporary storage device for the feed material in the processing equipment of the present invention is provided with a pedestal in the vicinity of each work process between two different work processes, and each work process and the guide roller are provided. A gantry is arranged on the material supply line, and a oscillating arm equipped with a pressing roller that contacts the upper part of the feed material is oscillatably provided on one gantry, and an encoder is attached to the spindle end of this oscillating arm. Since the amount of material deflection is detected by this encoder, changes in the tension of the feed material can be detected and detected by the encoder via the swing arm, and the feed material is temporarily stored without excavating the pit. As a result, the apparatus is simple, and the processing speed of the molding machine can be set so as to be always optimized according to the amount of material deflection, which has the advantage of improving productivity.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a temporary storage device for a feed material in a processing facility of the present invention.

FIG. 2 is a plan view of the same.

[Explanation of symbols]

 1 mount 2 mount 1R, 2R guide roller 3 spindle 4 swing arm 5 receiving roller 6 balance weight 7 encoder A press machine B molding machine C material storage mechanism

Claims (1)

[Claims] 1. A gantry is provided between two different work steps in the vicinity of each work step, and a gantry equipped with each work step and a guide roller is arranged on a material supply line, and one gantry is further installed. An oscillating arm equipped with a pressing roller in contact with the upper part of the feed material is swingably provided, and an encoder is attached to the pivot shaft end of the oscillating arm to detect the amount of material deflection. A temporary storage device for feed materials in a processing facility characterized by the above.