JPH0675008U - Positioning mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] Regardless of the strip specifications and winding position, the strip ends are always aligned at the same position. [Structure] The strip 6 is attached to the pair of holding portions 1 by a core 7. The control unit 5 controls the power source 3 by a signal from the detector 4 that detects the end of the strip, and drives the power unit 2 to move the holding unit 1 to position the strip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This consideration relates to a mechanism for determining the material position of a strip processing device or a strip processing device.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 2, the positioning of the strip is performed by attaching a limit switch 10 to the holding portion 8 or the power portion 9 that holds the strip 6 from both ends, and output the limit switch 10 to the power portion. 9 is supplied to the power source 3 for controlling the movement, and the limit switch 10 is turned on and off to indirectly detect the end of the strip 6.

[0003]

[Problems to be solved by the device]

 However, in this conventional positioning mechanism, each time the specification of the strip 6 changes, the limit switch 10 must be moved according to the winding position of the strip 6. If there is an error in the winding position even for strips with the same specifications, it is necessary for the manufacturer to correct the error visually. Therefore, the present invention makes it possible to always align the end of the strip at a fixed position regardless of the specifications and winding position of the strip.

[0004]

[Means for Solving the Problems]

 In this study, a detector that can directly detect the strip end and a controller that gives a command to the power source by its output are provided.

[0005]

[Action]

 As described above, in the positioning mechanism constructed as described above, since the end of the strip is directly detected, accurate positioning can be performed regardless of the specifications of the strip and without being affected by the winding position error. It will be possible.

[0006]

【Example】

 FIG. 1 is an example of the mechanism of this consideration.

The holding portion 1 is made up of a pair and is divided into a stationary portion 16 and an operating portion 1 a, and the operating portion has a mechanism for gripping the core 7 of the member 6. The power unit 2 is attached to the stationary unit. One of the operating ends of the power unit 2 is connected to the operating unit.

The movement of the operation unit 1 a of the holding unit 1 is performed by the power unit 2 in which a force is transmitted from the power source 3 to the power unit 2 in response to a signal from the control unit 5. Here, each holding unit is controlled by the control unit 5 such that when one of the holding units moves forward, the other moves backward, and conversely, when one of the holding units moves backward, the other moves forward.

The control unit 5 receives a signal from the detector 4 that detects the end of the strip 6, and outputs a signal to stop the movement of the holding unit 1 when the detector 4 detects the end of the strip. The detector 4 is installed at a position where the edge of the strip can be directly detected.

Here, the power unit 2 is a hydraulic cylinder, a pneumatic cylinder, a power cylinder, a motor and a ball screw, a motor and a gear, or the like, and the power source 3 includes a hydraulic pressure generating pump and a hydraulic pressure in the hydraulic cylinder. Control valves and pneumatic cylinders are pneumatic pumps and pneumatic control valves, power cylinders, motors and ball screws, and motors and gears are inverters if the motor is an induction machine, and servo drivers if a servo motor. The control unit 5 uses a programmable controller or a computer. Further, the detector 4 uses a photoelectric switch or a proximity switch.

[0011]

[Effect of device]

 According to the present consideration, as described above, it is possible to always align the strip end at a fixed position regardless of the strip specifications and the winding position.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a configuration of this consideration.

FIG. 2 is a diagram showing a general example of the configuration of a conventional device.

[Explanation of Codes] 1 holding part (1a operating part, 1b stationary part) 2 power part 3 power source 4 detector 5 control part 6 bar material 7 core 8 holding part 9 power part 10 limit switch

Claims (1)

[Scope of utility model registration request] 1. A pair of holding units 1, a power unit 2 for moving each holding unit, a power source 3 for controlling the movement of the power units, a detector 4 for detecting the position of a material, and outputs of the detector 4. A positioning mechanism including a control unit 5 that gives a command to the power source 3.