JPWO2019176586A1 - Current collectors and plating equipment for cylinder plating equipment - Google Patents

Abstract

Cylinder body plating device that can be used for the base end of the spindle of the chuck cone to plate the sliding surface without lubrication, and can efficiently prevent high temperature heat generation at low voltage without generating abnormal discharge. Provided are a current collector and a plating apparatus. A metal body, which is a current collecting member that is attached to the base end of the chuck cone of a cylinder body plating device that grips both ends of a cylinder body with chuck cones and rotates the cylinder body to perform plating. A cylinder body including a cylindrical base material made of the same material and a plurality of lubricating regions made of oil-impregnated carbon or oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material. It was used as a current collecting member for plating equipment.

Description

The present invention relates to a current collecting member for a cylinder plating device and a plating device using the same, and in particular, a current collecting member for a cylinder plating device and a current collecting member thereof, which are particularly preferably used for a base end portion of a spindle of a chuck cone. Regarding plating equipment.

Conventionally, a cylinder plating apparatus described in Patent Document 1 is known for plating an object to be processed such as a cylinder body with a plating apparatus. Further, as a fully automatic gravure plate making processing system provided with a cylinder plating device as described in Patent Document 1, there is a fully automatic gravure plate making processing system described in Patent Document 2.

In the cylinder plating apparatus described in Patent Document 1, when supplying electricity to the cylinder body or supplying electricity from the cylinder body side to the outside, a metal such as iron is attached to the rotating portion of the base end portion of the chuck cone. A current collector was used. The rotating iron collecting member and the fixing member made of a conductive metal such as copper are brought into contact with each other, and electricity is supplied to the cylinder body from the electric wire connected to the conductive metal fixing member, or the cylinder body side. It was supplying electricity to the outside from.

However, in the above-mentioned conventional metal current collecting member, it is necessary to supply oil (lubricating oil) to the current collecting member in order to suppress friction on the sliding surface during rotation. Then, by supplying oil to the current collecting member, an abnormal discharge is likely to occur, so that there is a problem that an abnormal discharge occurs in the oil.

Then, when an abnormal discharge occurs on the sliding surface of the current collecting member, it is the same as performing electric discharge machining, and a film is formed on the sliding surface, so that the sliding surface is uneven. It becomes. Then, when the sliding surface becomes uneven, the amount of oil supplied to the sliding surface further increases, which leads to a vicious cycle in which an abnormal discharge is further generated.

Further, there is a problem that the oil supplied to the sliding surface is scattered and the oil is dropped on the plating tank of the plating apparatus, and the plating solution is deteriorated. Further, there is a problem that oil flows between the current collector member and another member, the oil on the sliding surface of the current collector member makes it difficult for the current to flow, and a voltage higher than usual such as 9V is required. was there. Furthermore, there is also a problem that heat is generated at a temperature higher than usual such as 120 ° C. Further, when a graphite current collector is used, there is a problem that it is worn and powder is generated by rotating and collecting current.

WO2015 / 151665 WO2011 / 125926

The present invention has been made in view of the above-mentioned problems of the prior art, and by using it at the base end of the spindle of the chuck cone, the sliding surface can be plated without lubrication, and an abnormal discharge occurs. It is an object of the present invention to provide a current collecting member for a cylinder plating device and a plating device that can efficiently prevent high temperature heat generation at a low voltage.

In order to solve the above problems, in the current collecting member for a cylinder body plating device of the present invention, both ends of the cylinder body are gripped by chuck cones, and the cylinder body is rotated to perform plating. A current collecting member that is attached to the base end of a cone and rotated, and is a cylindrical base material made of a metal body and oil-impregnated carbon or oil-impregnated carbon provided scattered on the sliding surface of the cylindrical base material. It is a current collecting member for a cylinder body plating apparatus including a plurality of lubrication regions made of an oil-impregnated carbon-containing resin.

It is preferable that the lubrication region has a circular shape.

The cylinder body plating apparatus of the present invention includes a plating tank, a chuck cone provided in the plating tank for gripping and rotating the cylinder body, and a current collecting member attached to the base end portion of the chuck cone and rotated. The current collecting member is a cylinder made of a metal body, including a conductive metal fixing member that is brought into contact with the sliding surface of the current collecting member and an electric wire that is connected to the conductive metal fixing member. It is a cylinder body plating apparatus having a cylindrical base material and a plurality of lubricating regions composed of oil-impregnated carbon or oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material. ..

It is preferable that the lubrication region has a circular shape.

It is preferable that the current collecting member serves as a bearing for the spindle of the chuck cone.

The fully automatic gravure plate making processing system of the present invention is a fully automatic gravure plate making processing system provided with the cylinder body plating apparatus.

According to the present invention, by using it at the base end of the spindle of the chuck cone, the sliding surface can be plated without lubrication, and abnormal discharge does not occur, and efficient and high-temperature heat generation is performed at a low voltage. A significant effect of being able to provide a current collecting member for a cylinder body plating device and a plating device that can be prevented is achieved. Since the current collecting member for a cylinder plating device of the present invention does not require refueling, problems due to oil do not occur, the voltage is only about 2/3 of the conventional voltage, the efficiency is good, and heat is also generated. It can be suppressed to about 40 ° C. Further, the cylinder plating apparatus of the present invention can prevent the generation of sparks and is excellent in wear resistance, conductivity and durability. The present invention is particularly preferably used in a plating apparatus for gravure plate making.

It is a schematic diagram which shows one Embodiment of the cylinder body plating apparatus of this invention. It is a schematic diagram which shows the conventional cylinder body plating apparatus.

An embodiment of the present invention will be described below with reference to the accompanying drawings, but it goes without saying that the illustrated examples are shown by way of example and various modifications can be made without departing from the technical idea of the present invention. ..

In FIG. 1, reference numeral 10 is a cylinder body plating apparatus of the present invention, and reference numeral 12 is a current collecting member for a cylinder body plating apparatus of the present invention.
The current collecting member 12 for a cylinder body plating device of the present invention grips both ends of the cylinder body with chuck cones, and rotates the cylinder body to perform plating on the base end portions of the chuck cones of the cylinder body plating device 10. A current collecting member 12 that is attached and rotated, and is a cylindrical base material 14 made of a metal body, and oil-impregnated carbon or oil-impregnated carbon provided scattered on the sliding surface of the cylindrical base material 14. It is a current collecting member for a cylinder body plating apparatus including a plurality of lubrication regions 16 made of a contained resin.

The cylinder body plating device 10 of the present invention is a plating device using the current collecting member 12 for the cylinder body plating device, and includes a plating tank and a chuck cone provided in the plating tank for gripping and rotating the cylinder body. , The current collecting member 12 attached to the base end of the spindle 30 of the chuck cone, the conductive metal fixing member 18 brought into contact with the sliding surface of the current collecting member 12, and the conductive metal fixing. The current collecting member 12, including an electric wire 20 connected to the member 18, is provided so as to be scattered on a cylindrical base material 14 made of a metal body and a sliding surface of the cylindrical base material 14. A cylinder body plating apparatus having a plurality of lubrication regions 16 composed of oil-impregnated carbon or oil-impregnated carbon-containing resin.

In the cylinder body plating device 10, a current flows through the conductive metal fixing member 18 by rotating the current collecting member 12 in a state of being in contact with the conductive metal fixing member 18 as an energizing metal. It collects electricity. If the cylinder body is on the negative electrode side, a current can flow from the electric wire 20 connected to the conductive metal fixing member 18 to the cylinder body to supply power, and if the cylinder body is on the positive electrode side, the electric wire 20 can be supplied. Since the current flows through the device, electricity can be supplied to the externally connected device. As described above, in the current collector 12 of the present invention, both the supply of electricity to the cylinder body side and the supply of electricity from the cylinder body side to the externally connected device are performed depending on whether the cylinder body side is a negative electrode or a positive electrode. It is possible.

In the present invention, a plurality of lubrication regions 16 made of oil-impregnated carbon or oil-impregnated carbon-containing resin are interspersed on the sliding surface of the cylindrical base material 14 of the current collecting member 12 to slide. The surface can be plated without lubrication, and it is possible to efficiently prevent high temperature heat generation at low voltage.

In FIG. 1, an example in which brass is used as the metal body is shown, but the material of the cylindrical base material 14 is not particularly limited as long as it is a metal, and examples thereof include iron, copper, aluminum, and alloys thereof. Be done.

The shape of the lubrication region 16 is not particularly limited, but as shown in FIG. 1, it is preferably circular. Further, the plurality of lubrication regions 16 may be randomly provided on the sliding surface of the cylindrical base material 14, but it is preferable that the plurality of lubrication regions 16 are evenly formed on the sliding surface.
The method for forming the lubrication region 16 is not particularly limited. For example, a cylindrical metal body is used as the cylindrical base material 14, and an oil-impregnated carbon or an oil-impregnated carbon-containing resin is coated on a predetermined surface of the metal body. A lubrication region 16 may be provided, and a mesh metal body is used as the cylindrical base material 14, and the mesh or surface of the mesh metal body is filled with oil-impregnated carbon or an oil-impregnated carbon-containing resin. The lubrication region 16 may be provided by covering. Further, a metal body having a plurality of holes or recesses may be used as the cylindrical base material 14, and oil-impregnated carbon or oil-impregnated carbon-containing resin may be fitted into the holes or recesses of the metal body to provide a lubrication region 16. ..

As the oil-impregnated carbon, carbon powder kneaded with oil such as lubricating oil is preferably used. As the oil-impregnated carbon-containing resin, a synthetic resin containing carbon powder in which oil such as lubricating oil is kneaded is preferably used. As the carbon powder, for example, carbon powder or graphite powder is preferable, and porous graphite powder is more preferable.
The synthetic resin is not particularly limited, and known synthetic resins can be used. For example, fluororesins, polyamide resins, polyethylene resins, polyacetal resins, polyurethane resins, phenol resins, epoxy resins, polyester resins, polyketone resins and the like can be used. Can be mentioned. The oil-impregnated carbon and the oil-impregnated carbon-containing resin may contain other additives.

In FIG. 1, a copper fixing member is shown as the conductive metal fixing member 18, but the material of the conductive metal fixing member 18 is not particularly limited as long as it is a conductive metal, for example, iron. , Copper, aluminum and alloys thereof.

It is preferable that the current collecting member 12 serves as a bearing for the spindle 30 of the chuck cone.

By incorporating the cylinder body plating apparatus 10 of the present invention into, for example, the fully automatic gravure plate making processing system of Patent Document 2, the fully automatic gravure plate making processing system of the present invention can be obtained. Of these, as disclosed in Patent Document 2, a fully automatic type in which plate-making rolls are handed over to a plate-making processing unit one after another using only a non-traveling industrial robot without using a stacker crane to perform plate-making processing. It is preferable to incorporate the plating apparatus of the present invention into the gravure plate making processing system. The type of fully automatic gravure plate making processing system disclosed in Patent Document 2 can manufacture gravure plate making rolls more quickly than before, can save space, and can be used at night. This is because it is a fully automatic gravure plate making processing system with a high degree of freedom that enables unmanned operation, can flexibly customize the production line, and can meet the various needs of customers.

As described above, when the cylinder body plating apparatus of the present invention is used, the sliding surface can be plated without oil supply during the plate making process by the plating apparatus in the fully automatic gravure plate making process system, and abnormal discharge occurs. It does not occur, does not cause problems due to oil, requires about two-thirds lower voltage than before, is efficient, and can suppress heat generation to about 40 ° C, preventing high-temperature heat generation. Can be done. Further, the cylinder body plating apparatus of the present invention can prevent the generation of sparks, does not generate spark marks, has excellent wear resistance, and is a current collector and a conductive metal even if plating is performed for a long time. The manufacturing fixing member can maintain good conductivity and is also excellent in durability.

Hereinafter, the present invention will be described in more detail with reference to Examples, but it goes without saying that these Examples are illustrated and should not be construed in a limited manner.

(Example 1)
As the cylinder body plating apparatus, an apparatus having basically the same configuration as the conventional cylinder body plating apparatus was used except for the configuration shown in FIG. A current collector member 12 was used at the base end of the spindle of the chuck cone. As the current collector member 12, SPB-7590100 manufactured by OILES CORPORATION was used. As the plating solution, a chromium plating solution having a chromic acid concentration of 250 g / L and a sulfuric acid concentration of 2.5 g / L was used.

As the cylinder to be processed, a cylindrical base material with an aluminum core having a circumference of 800 mm and a surface length of 1250 mm is used. I sank it. The rotation speed of the cylinder to be processed was 100 rpm, the plating solution temperature was 55 ° C., the current density was 30 A / dm ² (current 3000 A), and the voltage was 6 V. The plating treatment was carried out for 10 minutes under these conditions, and a uniform plating film having a thickness of 6 μm was obtained with no pits or pits on the surface. Further, the heat generation of the current collector member could be suppressed to about 40 ° C.

<Abnormal discharge generation test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Example 1 (24 hours in total). Chromium and additive components (CHRIO RX-R manufactured by Okuno Pharmaceutical Co., Ltd.) consumed in plating were automatically replenished by an automatic replenishment device. The presence or absence of abnormal discharge was observed, but no abnormal discharge was confirmed.

<Behavior confirmation test>
Under the same conditions as in Example 1, the current collecting member 12 is attached to the plating tank, chrome plating is continuously performed, the temperature of the conductive metal fixing member 18 during the test, and the conductive metal fixing member 18 after the test. The behavior of the wear and the change in conductivity between the current collecting member 12 and the conductive metal fixing member 18 before and after the test was confirmed. The test conditions are as follows.
Test time: 22 hours, number of cylinders used: 57, current value flowing through cylinders: 3000A, plating voltage: 7.0V-7.2V, cylinder rotation speed: 340rpm.
At the time of the test, no spark was confirmed, and the temperature of the conductive metal fixing member 18 was average temperature: left 43.5 ° C., right 49.9 ° C., maximum temperature reached: left 51.0 ° C., right 59. It was 0 ° C., and high temperature heat generation could be prevented. In addition, after the test, there were no spark marks and no wear of the conductive metal fixing member 18. Further, the conductivity of the current collecting member 12 and the conductive metal fixing member 18 did not change before and after the test, and extremely good results were obtained.

(Example 2)
As the plating apparatus, the apparatus having the configuration shown in FIG. 1 was used. A current collector member 12 was used at the base end of the spindle of the chuck cone. As the current collector member 12, SPB-7590100 manufactured by OILES CORPORATION was used. As the plating solution, a copper plating solution of 200 g / L of copper sulfate, 100 g / L of sulfuric acid, and 100 mg / L of chlorine ion was used.
As the cylinder to be processed, a cylindrical base material with an aluminum core having a circumference of 800 mm and a surface length of 1250 mm is used, both ends of the cylinder to be processed are chucked and mounted in a plating tank, and the copper plating solution is overflowed to complete the cylinder to be processed. I sank it. The rotation speed of the cylinder to be processed was 250 rpm, the plating solution temperature was 45 ° C., the current density was 30 A / dm ² (current 3000 A), and the voltage was 6 V. The plating treatment was carried out for 10 minutes under these conditions, and a uniform plating film having a thickness of 60 μm was obtained with no pits or pits on the surface. Further, the heat generation of the current collector member could be suppressed to about 40 ° C.

<Abnormal discharge generation test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Example 2 (24 hours in total). The copper plating component consumed in plating was automatically replenished by an automatic replenishment device. The presence or absence of abnormal discharge was observed, but no abnormal discharge was confirmed.

(Comparative Example 1)
The conventional plating apparatus 40 shown in FIG. 2 was used as the plating apparatus, and the plating treatment was performed for 10 minutes in the same manner as in Example 1 except that the lubricating oil was supplied to the current collector member. In the conventional plating apparatus 40, a current collector whose sliding surface is made of iron is used as the current collector 32 used for the base end of the spindle of the chuck cone.
In Comparative Example 1, lubricating oil enters between the rotating iron current collecting member 32 and the conductive metal fixing member 18, making it difficult for current to flow, and a sufficient plating film cannot be obtained at a voltage of 6 V, resulting in a thickness. In order to obtain a uniform plating film of 6 μm, a high voltage of 9 V was required, and the current collecting member generated heat to 120 ° C. due to friction and difficulty in flowing current.

<Abnormal discharge generation test>
The plating treatment for 10 minutes was repeated 144 times under the same conditions as in Comparative Example 1 (24 hours in total). Chromium and additive components (CHRIO RX-R manufactured by Okuno Pharmaceutical Co., Ltd.) consumed in plating were automatically replenished by an automatic replenishment device. The presence or absence of abnormal discharge was observed, and it was confirmed that abnormal discharge occurred several tens of times.

<Behavior confirmation test>
Under the same conditions as in Comparative Example 1, a current collector 32 having an iron sliding surface was attached to the plating tank, lubricating oil was supplied to the current collector, and chrome plating was continuously performed to confirm the behavior of Example 1. The behavior was confirmed under the same test conditions as above.
During the test, sparks were generated, and the current collecting member 32 and the conductive metal fixing member 18 were de-energized during the test, so the test was stopped during the test. The temperature of the conductive metal fixing member 18 at the time of the test was an average temperature of about 70 ° C. and a maximum temperature reached of 120 ° C. or higher, and high-temperature heat generation was confirmed. In addition, after the test, innumerable spark marks were confirmed, and the conductive metal fixing member 18 was severely worn starting from the spark marks.

10: Cylinder body plating device, 12: Current collecting member for cylinder body plating device, 14: Cylindrical base material, 16: Lubrication area, 18: Conductive metal fixing member, 20: Electric wire, 30: Chuck cone spindle, 32: Iron collecting member, 40: Conventional plating apparatus.

Claims (6)

A current collecting member that is attached to the base end of the chuck cone of a cylinder body plating apparatus that grips both ends of a cylinder body with chuck cones and rotates the cylinder body to perform plating.
A cylindrical base material made of a metal body and
A plurality of lubrication regions composed of oil-impregnated carbon or oil-impregnated carbon-containing resin scattered on the sliding surface of the cylindrical base material, and
A current collector for cylinder plating equipment, including. The current collector for a cylinder plating apparatus according to claim 1, wherein the lubrication region has a circular shape. Plating tank and
A chuck cone provided in the plating tank for gripping and rotating the cylinder body, and
A current collecting member attached to the base end of the chuck cone and rotated.
A conductive metal fixing member that is brought into contact with the sliding surface of the current collector member,
Includes an electric wire connected to the conductive metal fixing member.
A plurality of lubrications in which the current collecting member is composed of a cylindrical base material made of a metal body and an oil-impregnated carbon or an oil-impregnated carbon-containing resin provided scattered on the sliding surface of the cylindrical base material. Cylinder body plating apparatus having an area and. The cylinder body plating apparatus according to claim 3, wherein the lubrication region has a circular shape. The cylinder body plating apparatus according to claim 3 or 4, wherein the current collecting member serves as a bearing for the spindle of the chuck cone. A fully automatic gravure plate making processing system including the cylinder body plating apparatus according to any one of claims 3 to 5.

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