JPH10204682A - Continuous plating apparatus with slip detecting mechanism for long-sized material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuous plating apparatus with a slip detecting mechanism for a long-sized material which is capable of preventing the abnormality of plating thicknesses and outflow of a heavy defect, such as absence of plating by surely executing the detection of the slip which can occur between the long- sized material and a taking-off means at all times. SOLUTION: This apparatus has a delivery means for the long-sized material, a line for executing the plating treatment of the delivered long-sized material, a taking-off means 15 for forcibly taking off the long-sized material on the downstream side of the plating treatment line and a taking-up means for the long-sized material and has the slip detecting mechanism for detecting the slip between the taking-off means and the long-sized material subjected to the plating treatment. The slip detecting mechanism is recommended to be attached to a guide roller 11 existing nearer the delivery side than the taking-off means. The more specific example of the slip detecting mechanism consists of, for example, a slotted circular plate 16 mounted at a guide roller shaft and a pulse sensor 17 disposed in the position where the slit of the circular plate passes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous plating technique for a long material, and more particularly to an apparatus for continuously plating a long material with a slip detecting mechanism.

[0002]

2. Description of the Related Art FIG. 9 shows an outline of a general continuous continuous plating apparatus for a long material. A long material 2 delivered from a delivery means 1 is passed through a plating tank 6 on a plating line. After that, the take-up means 7 is forcibly taken up at a constant speed, and the take-up means 8 is taken up.

[0003] In the above-mentioned apparatus, when connecting a new long material or newly rewinding, the line is continuously operated without stopping the line, so that the time required for these processes is accumulated. (Accumulator) 4 is provided. 3 is a guide roller, 5 is an accumulator roller.

[0004]

FIG. 9 shows a conventional continuous plating apparatus for a long material according to the prior art described above. As shown in FIG. 9, a slip occurs between the roller of the pickup means 7 and the long material 2 to be plated. The long material 2 to be plated is in the plating bath 6
Sometimes stagnated inside. It has been found that the stagnation of the long material in the plating tank causes abnormal plating thickness or no plating. It is necessary to completely prevent the outflow of products such as no plating, since it becomes a serious defect.

[0005] As a result of pursuing the cause of the above-mentioned slip, the following was found. The take-off means 7 is generally composed of an electric motor and a roller. The material used for the surface of the roller is such that the long material to be plated 2 which is a product is not damaged or deformed, and the friction coefficient is large. Therefore, rubber is generally used. However, since the rubber roller transfers minute rubber pieces and the like generated by wear of the material itself, the rubber roller becomes soiled with time. Therefore, it was necessary to periodically clean the rollers even during the operation of the line. Cleaning was performed using alcohol to wipe off dirt. At this time, since the surface of the roller is wetted with alcohol, the friction coefficient is significantly reduced.

When newly connecting a long material, the accumulator roller 5 on the sending side is lowered. The connecting operation is completed while the accumulator roller 5 is lowered, and the operation returns. By the return operation, the movement of the accumulator roller 5 changes from falling to rising. At this time, the tension applied to the material to be plated 2 is momentarily loosened, and the frictional force between the take-up means 7 and the roller is reduced.

In the plating bath 6, there is a power supply means for supplying electrolysis to the material 2 to be plated. As a method,
Generally, it is performed by contact of the power supply electrode from both side surfaces or upper and lower surfaces of the material 2 to be plated. For this reason, when a long material is newly connected, when the connection portion of the long material passes through the power feeding means, the hook is generated, and a resistance force acts on the take-up means 7.

However, in the conventional continuous plating apparatus for a long material to be plated, since the above-described mechanism for detecting the slip is not provided, it is impossible to always and surely monitor the slip and it is important. It was difficult to completely prevent the outflow of defects.

Therefore, the problems to be solved by the present invention (objects)
Is a continuous material with a slip detection mechanism that constantly and reliably detects possible slips between the material and the take-off means, and prevents the outflow of serious defects such as abnormal plating thickness or no plating. An object of the present invention is to provide a plating apparatus.

[0010]

SUMMARY OF THE INVENTION A continuous material continuous plating apparatus provided with a slip detection mechanism provided by the present invention comprises a means for feeding a long material, a line for plating the delivered long material, and a downstream of a plating line. A means for forcibly pulling the long material on the side, a means for winding the long material, and a slip detection mechanism for detecting a slip between the pulling means and the plated long material are provided. As described above, by providing the slip detection mechanism, the long body and the take-off means can be always and reliably slipped.

The slip detecting mechanism may be attached to a guide roller positioned on the sending side before the pickup means. The difference lies in whether or not the disconnection of the material to be plated can be detected in terms of the difference between the two installation positions of the guide roller on the sending side or the winding side. If the material to be plated is disconnected in the plating bath, the material to be plated on the take-up side of the disconnection position is taken up by the take-up means. When the slip detection mechanism is installed on the winding side, the disconnection cannot be detected until the disconnection position passes through the guide roller provided with the slip detection mechanism.

On the other hand, the material to be plated on the sending side from the disconnection position stagnates when the disconnection occurs. For this reason,
If the slip detection mechanism is provided on the sending side,
The detection can be performed at the same time when the disconnection occurs.

[0013] From the above, the installation location of the slip detection mechanism may be basically anywhere on the sending side before the pickup means.
It is not preferable because there is a problem that a failure easily occurs due to an atmosphere or the like. For this reason, it is preferable to use the delivery side of the take-out means, excluding the inside of the plating tank. The reason why the guide roller is attached to the mechanism is that the guide roller can be easily installed. (Note that the roller portion of the take-up means can also be a target of the installation location.) Various specific examples of the slip detection mechanism can be considered, but some preferred examples are as follows. It consists of a circular plate with a slit attached to the guide roller shaft and a pulse sensor provided at a position where the slit of this circular plate passes, a metal body attached to the side of the guide roller, and this metal body passes And a rotary encoder mounted on a guide roller shaft, and a rotary encoder rotatably pressed against the outer peripheral surface of the guide roller.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 5 show a first embodiment of the present invention. FIG. 1 shows an outline of a continuous plating apparatus for a long material with a slip detecting mechanism. FIG. 2 shows the slip mechanism in detail. 3 to 5 show the output of the slip detection mechanism.

The apparatus of this embodiment will be described in accordance with the flow of a long material 10 to be plated. For continuous plating of a long material, a feeding means 9, an accumulator 12 as a buffer means, a plating tank. 14. Collection means 1
5. It has an accumulator 12 as a buffer means, a winding means 18, and a circular plate 16 with a slit and a pulse sensor 17 as a slip detecting mechanism. 11 is a guide roller provided between each means.

In the accumulator 12 on the delivery side, the accumulator roller 13 is positioned in a shape, and
Work time for material connection is stored. The plating process in the plating tank 14 generally includes a pre-treatment, a plating, and a post-treatment.

The take-off means 15 is generally composed of an electric motor and a roller, and forcibly takes the long body 10 at a constant speed. In the accumulator 12 on the winding side, the accumulator roller 13 is located at a lower portion, so as to accumulate a work time required for newly starting to wind the long material 10 to be plated.

The circular plate 16 with a slit as a slip detecting mechanism and the pulse sensor 17
Is attached to the guide roller 11 located in front of the plating tank 14 in front of.

The arrangement of the circular plate 16 with slits and the pulse sensor 17 is clearly shown in FIG. The circular plate 21 with a slit is mounted so that the axis thereof coincides with the guide roller shaft 22, and is rotated completely synchronously with the guide roller 20. The guide roller 20 does not have a single driving force and is synchronized with the linear velocity of the long material 19 which is a material to be plated. On the other hand, the pulse sensor 17 is positioned on the sensor base 23 so that the main body 23 passes through the circumferential slit of the circular plate 21 with a slit.

In FIGS. 1 and 2, when the line is in operation and in a normal state, the guide rollers 11 and 20
In addition to rotating at a constant speed in synchronization with the linear speed, the circular plates 16 and 21 with slits also rotate at the same speed. At this time,
When the slit of the slit-shaped circular plate passes through the pulse sensor main body 23, a pulse is output from the main body 23. The sensor output at this time is shown in FIG. Thus, during normal operation, a constant pulse is output continuously with respect to time.

On the other hand, when a slip of the long material occurs, the rotation of the guide rollers 11 and 20 is stopped because the material to be plated; I do. Therefore, the rotation of the circular plates 16 and 21 with slits also stops, and the pulse sensor 17 and
As shown in FIGS. 4 and 5, the output 23 does not change for the time of slip.

By discriminating the characteristics of the pulse sensor output at the time of normal operation and at the time of occurrence of slip using a programmable controller or the like, slip can be detected. As described above, the slip detection mechanism including the circular plates 16 and 21 with slits and the pulse sensors 17 and 23 is attached to the guide rollers 11 and 20 before the pickup means 15 and the output of the pulse sensor is monitored by a programmable controller or the like. By doing so, slip detection can be always and reliably performed. Thus, serious defects such as abnormal plating thickness and no plating can be completely prevented.

FIG. 6 shows a second embodiment of a continuous plating apparatus for a long material with a slip detecting mechanism according to the present invention.
As the slip detection mechanism, a rod-shaped metal body 28 attached at equal intervals on a circumferential orbit on the side surface of the guide roller 26 and a proximity switch attached at a position where the metal body 28 passes are used. . Here, 25 is a long material to be plated, and 27 is a guide roller shaft.

FIG. 7 shows a third embodiment of a continuous plating apparatus for a long material with a slip detecting mechanism according to the present invention.
As the slip detecting mechanism, a rotary encoder 34 attached to a guide roller shaft 33 is used. Reference numeral 31 denotes a long material to be plated, and 32 denotes a guide roller.

FIG. 8 shows a fourth embodiment of the continuous plating apparatus for a long material with a slip detecting mechanism according to the present invention.
As a slip detection mechanism, a rotary encoder 3 that is disposed so as to be able to roll on the outer peripheral surface of the guide roller 36.
8 is used. Reference numeral 35 denotes a long material to be plated, 37 denotes a guide roller shaft, and 39 denotes a rotary encoder biasing arm.

[0026]

According to the present invention as described above, slip which can occur between the long material and the take-off means is always and reliably detected, and outflow of serious defects such as abnormal plating thickness or no plating is performed. It is possible to achieve the intended problem (object) of providing a continuous plating apparatus for a long material with a slip detection mechanism, which can prevent the occurrence of the problem.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of a continuous material plating apparatus with a slip detection mechanism according to the present invention.

FIG. 2 is a detailed view of a slip detection mechanism in the apparatus of FIG.

FIG. 3 is an output characteristic diagram from a pulse sensor during a normal operation in the slip detection mechanism of FIGS.

FIG. 4 is an output characteristic diagram from a pulse sensor when a slip occurs in the slip detection mechanism of FIGS.

FIG. 5 is an output characteristic diagram (different from FIG. 4) from a pulse sensor when a slip occurs in the slip detection mechanism unit in FIGS.

FIG. 6 is a detailed view of a slip detection mechanism according to a second embodiment of the present invention.

FIG. 7 is a detailed view of a slip detection mechanism according to a third embodiment of the present invention.

FIG. 8 is a detailed view of a slip detection mechanism according to a fourth embodiment of the present invention.

FIG. 9 is a schematic view of a conventional continuous plating apparatus for a long material.

[Explanation of symbols]

 Reference Signs List 9 feeding means 10, 19 long material 11, 20 guide roller 12 buffer means (accumulator) 13 accumulator roller 14 plating tank 15 take-up means 16, 21 circular plate with slit 17, 23 pulse sensor 18 take-up means 22 guide Roller shaft 24 Sensor mount 25,31,35 Long material 26,32,36 Guide roller 27,33,37 Guide roller shaft 28 Metal body (bolt etc.) 29 Proximity switch 30 Proximity switch mount 34,38 Rotary encoder 39 Rotary encoder Biasing arm

Claims (6)

[Claims] A feeding means for feeding the long material; a line for plating the fed long material; a means for forcibly pulling the long material on a downstream side of the plating line; and a means for winding the long material. A continuous material plating apparatus with a slip detection mechanism, further comprising a slip detection mechanism for detecting a slip between the pick-up means and the plated long material. 2. The apparatus according to claim 1, wherein the slip detecting mechanism is attached to a guide roller located on the sending side before the take-off means. 3. The slip detecting mechanism comprises a circular plate with a slit attached to a guide roller shaft, and a pulse sensor provided at a position where the slit of the circular plate passes. Equipment. 4. The slip detection mechanism comprises a metal member attached to a side surface of the guide roller, and a proximity switch attached at a position where the metal member passes.
Or the apparatus according to claim 2. 5. The apparatus according to claim 1, wherein the slip detecting mechanism comprises a rotary encoder mounted on a guide roller shaft. 6. The apparatus according to claim 1, wherein the slip detecting mechanism comprises a rotary encoder that is rotatably pressed against the outer peripheral surface of the guide roller.