JP2676496B2 - Roll polishing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates mainly to a roll polishing apparatus for polishing conductor rolls (current-carrying rolls) of plating equipment.

[0002]

2. Description of the Related Art Abrasive stones made of resin or ceramics are generally used as abrasives used in this type of polishing apparatus. For example, as a prior art using a ceramic grindstone, there is an automatic polishing equipment described in Japanese Patent Laid-Open No. 3-79793. In this polishing equipment, a disk-shaped grindstone rotatably driven by a drive unit is suspended from a moving carriage via a guide mechanism so that it can be raised and lowered, and an operator simply sets the polishing conditions by an automatic operation mechanism. The disk-shaped grindstone descends with respect to the current-carrying roll to perform the polishing work.

[0003]

However, the conventional general polishing apparatus and the apparatus described in the above publication have the following disadvantages.

Resin-made abrasives are made-to-order and expensive, and the workability is poor, so the processing accuracy is low,
It is also easily affected by acid.

A grindstone made of ceramics is expensive as well as made of resin, and is easily damaged, and there is a possibility that the roll is over-polished.

The polishing equipment of the above publication has a complicated structure,
Since it has a control mechanism for automatic operation, the facility cost is high. Further, it takes time and labor to replace the grindstone, and the plating line needs to be temporarily stopped at the time of replacement, which may reduce the production efficiency.

The present invention has been made in view of the above points, and provides a roll polishing apparatus having a simple structure, low manufacturing cost, easy replacement of polishing members, and replacement without stopping the production line. Has an aim.

[0008]

In order to achieve the above-mentioned object, a roll polishing apparatus of the present invention is capable of coming into contact with and separating from a roll to be polished, and feeding a polishing member to reciprocate in the longitudinal direction of the roll. a mechanism, the abrasive member, while the stretched structure sandpaper via an elastic member such as rubber, interchangeably attached to the mobile part main body of the feed mechanism, the moving body, a downward position And upward position
It is pivotally supported in the vertical direction between the
The upper part of the moving part body at the downward position.
It is attached so that it is located at .

According to a second aspect of the present invention, the moving unit main body
A pair of guide members are spaced apart in the width direction and
And is slidable on these guide members.
A guide tool for fitting is provided on the polishing member, and the polishing member
The pin that connects the two can be attached and detached between the
May be attached to .

According to a third aspect of the present invention, the feed mechanism is moved forward.
An air cylinder can be used for the backward movement device .

[0011]

[0012]

According to the roll polishing apparatus of the present invention having the above structure, a commercially available sandpaper can be used to polish a conductor roll for plating or the like. That is, the surface of the roll is polished by bringing the sandpaper into contact with the roll which rotates at a constant speed in one direction and reciprocating in the longitudinal direction of the roll in this state. At this time,
The elastic member in the sandpaper absorbs the impact when the sandpaper comes into contact with the roll, and the sandpaper is stretched by the elastic force of the elastic member, and after the sandpaper comes into contact with the paper, the sandpaper is stretched under the elastic force of the elastic member. The file is pressed against the roll surface with a constant pressing force. As a result, the contact surface of the sandpaper with respect to the roll is uniformly pressed against the entire surface and comes into close contact with the roll. Therefore, even when the sandpaper reciprocates, the sandpaper does not float from the roll and the roll is polished substantially uniformly. Also,
Since the sandpaper, the elastic member and the like are replaceable, the type of sandpaper and the elastic force of the elastic member can be changed according to the type of roll and the polishing conditions.

[0013] By sandpaper to roll is pressed with a constant force under the load of the counterweight, the roll is polished efficiently. On the other hand , the sandpaper is maintained in a state of being separated from the surface of the roll by rotating the moving portion main body of the feeding mechanism in the vertical direction by a predetermined angle or more (about half a rotation) against the load of the counterweight. Therefore, the sandpaper or the like can be easily replaced without stopping the rotation of the roll, in other words, without stopping the plating line.

According to the roll polishing apparatus of the second aspect ,
The connecting member is pulled out to release the connection between the polishing member and the moving part main body, and the polishing member is moved in the longitudinal direction through the guide tool along the guide member on the moving part main body side. It can be removed from the body and as a result the polishing member can be easily replaced. It should be noted that the polishing member can be attached to the moving portion main body in the opposite manner.

According to the roll polishing apparatus of the third aspect ,
The polishing member can be reciprocated in the longitudinal direction of the roll by the air cylinder to polish the roll, and even if air leakage occurs due to the use of the pressurized air source, the plating operation is not adversely affected.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the roll polishing apparatus of the present invention is applied to a conductor roll polisher of a plating apparatus will be described below with reference to the drawings.

FIG. 1 is a front view showing a roll polisher according to this embodiment with a part omitted, FIG. 2 is a sectional view taken along the line II--II of FIG. 1, FIG. (b) shows the state where the polishing member is raised. FIG. 3 is an enlarged front view of a part of FIG. 1, and a part thereof is omitted. 4 is a front view in which a part of the state in which the polishing member is removed from the state of FIG. 3 is omitted, FIG. 5 is a sectional view taken along line VV of FIG. 3, and FIG. 6 is a pneumatic circuit diagram.

As shown in FIG. 2, the conductor roll 1 is rotatably supported at the center of both ends thereof, and the lower half thereof is immersed in the plating solution A in the plating tank 2. Further, in the plating tank 2, the electrode surface 1 at the central portion of the conductor roll 1 is
The arc-shaped anode (anode) 3 corresponding to a (FIG. 1) is
It is arranged at a predetermined distance from the surface of the conductor roll 1. Further, guide rolls 4 and 5 for guiding the steel strip B are rotatably supported in the front and rear of the conductor roll 1, respectively.

Above the conductor roll 1, a roof-type hood 6 is disposed so as to be supported by a frame 7 suspended from the ceiling. The hood 6 sucks the vaporized gas from the plating solution A in the plating tank 2.

As shown in FIGS. 1 and 2, a vertical frame 7a is hung from both sides of the frame 7, and a horizontal frame 7b is laid across the lower ends of these vertical frames 7a. In this example, a roll polisher 10 as a polishing device is used.
Is attached below the horizontal frame 7b. That is, a pair of supporting members 11 are hung from the horizontal frame 7b, and bearings 12 are attached to the lower ends of the supporting members 11. The support shaft 13 is arranged horizontally across the bearings 12 on both sides,
The support shaft 13 is configured to be vertically rotatable and slidable in the axial direction. A support cylinder 14 having a large outer diameter is integrally mounted on the support shaft 13. One end of the support shaft 13 (on the left side in FIG. 1) is connected to one end of the horizontal frame 7b (see FIG. 1).
An air cylinder 15 is provided on the left side of the), and the support shaft 13 reciprocates by the air cylinder 15. In this example, by the constituent members represented by the above-mentioned reference numerals 13 to 15,
The feed mechanism of the claims is constructed.

As shown in FIGS. 1 and 3, a support base suspended from a support cylinder 14 (corresponding to the main body of the moving part in the claims) 1
8, a polishing member 16 is attached. That is,
A support base 18 is suspended from a pair of fixing rings 17 fixed to the support cylinder 14 via a support portion 17a.
As shown in FIG. 5, a pair of guide members 19 and 19 are provided on the lower surface of the support base 18 so as to be spaced downward in the width direction and project downward. A guide groove 19a is formed in the inner surface of the guide member 19 facing each other in the longitudinal direction. A plate-shaped guide tool 20 is fixed to the upper end of the polishing member 16 so as to project to both sides, and both sides of the guide tool 20 are slidably fitted in the guide grooves 19a. Upper body portion 1 of polishing member 16
A concave portion 16b is formed on the lower surface of 6a along the longitudinal direction, and an upper end portion of a rectangular parallelepiped rubber 21 as an elastic body is replaceably fitted into the concave portion 16b. Then, the bottom surface is flattened along the lower surface of the rubber 21, bent at both sides thereof, and further, both sides of the sandpaper 22 bent into a pentahedron along the corner edges of the upper main body portion 16a become the upper main body portion 16a. It is replaceably attached via a stop (not shown).

One end of the upper body portion 16a (right side in FIG. 1)
, One end of the extension pipe 23 is integrally connected as shown in FIG.
A hook-shaped metal fitting 23a is attached to the other end of the extension pipe 23. Then, as shown in FIG. 3, the support plate 24 is fixed to the support cylinder 14 so as to correspond to the hook-shaped metal fitting 23a, and the hole of the L-shaped lower end horizontal portion 24a of the support plate 24 and the upper end horizontal portion of the hook-shaped metal fitting 23a. With the hole of 23b aligned, the connecting pin 25
Is inserted and the support plate 24 and one end of the extension pipe 23 are connected. In this state, the polishing member 16 is set on the support base 18.

As shown in FIG. 2, the support base 18 is a support portion 1.
The lower surface of the sandpaper 22 is slanted and suspended at the lower end of 7a, and contacts the lower surface of the sandpaper 22 so as to make a tangent to the circumferential surface of the conductor roll 1 as shown in FIG. In this example, the central axis of the sandpaper 22 and the central vertical plane of the conductor roll 1 intersect at a slight inclination angle α. In addition, a cylindrical counterweight 26 is attached to the tip of a support tool 27 extending in the radial direction from the support cylinder 14 or the support shaft 13, and is located above the support table 18 in the working state, and the sandpaper 22 Is pressed onto the outer peripheral surface of the conductor roll 1. On the other hand, in the non-working state,
As shown in FIG. 2 (b), the support base 18 is rotated upward about the support shaft 13 and is held by about 150 ° in this example. That is, the support shaft 13 is rotatable within a range of about 150 °, and when the support base 18 (polishing member 16) is located right above the support shaft 13, the counterweight 26 is clockwise from the vertical plane of the support shaft 13. Turn to a position eccentric to the
To prevent it from returning to the original polishing position. FIG.
Reference numeral 29 therein is a pressurized air supply pipe of the air cylinder 15.

Next, an example of the pneumatic circuit of the air cylinder 15 for reciprocating the polishing member 16 will be described with reference to FIG. As shown in the figure, the piston rod 15a of the air cylinder 15 connected to one end of the support shaft 13 has three
An operating portion 15b is provided for switching the port 2 position mechanical switching type mechanical valves 31 and 32 respectively. Air supply pipe 3 connected to a supply port 33 for pressurized air
4 is branched into air supply pipes 34a and 34b, and one air supply pipe 3
4a is connected to a 5-port 2-position double pilot switching type master valve 35, and two air supply sides of the master valve 35 and air supply and exhaust ports at both ends of the air cylinder 15 are provided with speed control valves 36 and 37, respectively. The pipes 38 and 39 are connected to each other. Further, silencers 40 and 41 are connected to the two exhaust ports of the master valve 35.

The air supply pipe 34b is connected to a 4-port 2-position double pilot switching type pilot valve 42, and the two air supply sides of the pilot valve 42 are connected to the mechanical valves 31 and 32 by pipes 43 and 44, respectively. The branch pipe 43b branched from the pipe 43 is connected to one pilot port of the master valve 35, and the branch pipe 44b branched from the pipe 44 is connected to the master valve 3
5 is connected to the other pilot port. Further, the mechanical valve 31 and a 3-port 2-position manual switching type mechanical valve 47 are connected by a pipe 45, and the mechanical valve 32 is connected by a pipe 46 to one pilot port of the mechanical valve 42. Further, the mechanical valve 47 is connected to the other pilot port of the mechanical valve 42 by a pipe 48.

The mode of use of the roll polisher (roll polishing apparatus) according to the present embodiment configured as described above will be described.

As shown in FIG. 2 (a), the strip steel B that rotates at a constant speed in one direction in the plating tank 2 and passes between the strip 3 and the anode 3.
To the electrode surface 1a of the conductor roll 1 for plating
The sandpaper 22 of the polishing member 16 is brought into contact with the urging force of the counterweight 26. At this time, the flat lower surface of the sandpaper 22 contacts the outer peripheral surface of the conductor roll 1 (electrode surface 1a) at an angle forming a tangent line.

In this state, the sandpaper 22 (polishing member 16) reciprocates through the air cylinder 15 along the longitudinal direction of the conductor roll 1 with a very small stroke.
The outer peripheral surface of the conductor roll 1 is polished. At this time,
The elastic force of the rubber 21 in the sandpaper 22 absorbs the impact when the sandpaper 22 contacts the surface of the roll 1. The reciprocating operation of the air cylinder 15 is performed as follows by the pneumatic circuit of FIG.

That is, in the state of FIG. 6, the sandpaper 22 is moved to the rightmost end, and the piston rod 15a is at the rightmost end position. In this state, when the mechanical valve 47 is switched to the operating position by the operator, the pressurized air switches the valve 35 through the pipe 34-34b-valve 42-pipe 44-44b. This time the pressurized air is pipe 34
-34a-Valve 35-Pipe 38 and air cylinder 1
5, the sandpaper 22 starts moving leftward together with the piston rod 15a. When the piston rod 15a moves to the left end position in this way, the operating portion 15b
Valve 32 is switched by and the pressurized air is supplied to the pipe 34.
-34b-Valve 42-Piping 44-Valve 32-Piping 4
6, the valve 42 is switched to the position shown in FIG. 6, so that the pressurized air is switched to the position shown in FIG. 6 through the pipes 34-34b-valve 42-pipe 43b. Therefore, this time, the pressurized air is supplied to the pipe 34-34a-valve 35.
The sandpaper 22 starts to move to the right side together with the piston rod 15a, flowing in from the left end air supply / exhaust port of the air cylinder 15 through the pipe 39. In this way, the air cylinder 15
Since the piston rod 15a of the
2 reciprocates.

On the other hand, when the sandpaper 22 is worn and needs to be replaced during the plating operation, the polishing member 16 is moved to the position shown in FIG.
From the state of (a), the support shaft 1 is resisted against the counterweight 26.
2 is swung upward around 3 to obtain the state of FIG. 2 (b). Then, after pulling up the connecting pin 25 shown in FIG. 3 to release the connection between the polishing member and the support plate 24, the extension pipe 23 is pulled to the right side as shown in FIG. Pull out 16. Then, after replacing the portion of the sandpaper 22 shown in FIG. 5, the polishing member 16 is set on the support base 18 and connected to the support plate 24 by the connection pin 25 in the reverse procedure to the above. After that, the polishing member 16 may be pivoted downward about the support shaft 13 and brought into contact with the electrode surface 1a of the conductor roll 1 as described above.

Although one embodiment of the present invention has been described above, the polishing apparatus of the present invention can be carried out as follows.

(A) Instead of the air cylinder 15, a hydraulic cylinder is used.

(B) Instead of the air cylinder 15, a feed screw mechanism rotated by an electric motor is used.

(C) Instead of the rubber 21, a leaf spring is used.

(D) Not limited to the conductor roll 1, it is applied to the polishing of various metal rollers.

[0036]

As is apparent from the above description,
The polishing apparatus of the present invention has the following excellent effects.

(1) Since the roll can be polished using a commercially available sandpaper, a dedicated grindstone is not required, and sandpapers having different polishing roughness can be easily obtained according to the polishing conditions. , There is no risk of cutting the roll too much, and the running cost is low. In addition, since an elastic member such as rubber is interposed inside the sandpaper, the shock when the sandpaper comes into contact with the roll is absorbed, and the sandpaper is stretched by the elastic force of the elastic member and is in contact with the sandpaper. After that, the sandpaper is pressed against the roll with a constant pressing force under the elastic force of the elastic member, so that the contact surface of the sandpaper against the roll receives the pressing force evenly over almost the entire surface,
Since the sandpaper is in close contact with the roll, the sandpaper does not float up even when the sandpaper reciprocates, and the roll can be efficiently polished. Moreover, the whole structure is simple and the manufacturing cost is low.

Further (2), since the pressed with a constant force under the load of the counterweight sandpaper, it is possible to polish the roll efficiently and uniformly. In addition , the counterweight keeps the sandpaper away from the rolls, so you don't have to stop the sandpaper on your production line.
Can be easily replaced.

(3) In the roll polishing apparatus according to claim 2 ,
The polishing member can be easily connected to and released from the moving part body, and the polishing member can be easily replaced in a short time.

(4) In the roll polishing apparatus according to claim 3 ,
The polishing member can be reciprocated in the longitudinal direction of the roll by the air cylinder to polish the roll, and even if air leakage occurs due to the use of the pressurized air source, the plating operation is not adversely affected.

[Brief description of the drawings]

FIG. 1 is a partially omitted front view showing a roll polisher according to an embodiment of a roll polishing apparatus of the present invention.

2 is a sectional view taken along the line II-II of FIG. 1, in which FIG. 2 (a) shows a working state and FIG. 2 (b) shows a state in which a polishing member is raised.

FIG. 3 is an enlarged front view of a part of FIG. 1, with a part omitted.

FIG. 4 is a front view in which a part of the state in which the polishing member is removed from the state of FIG. 3 is omitted.

5 is a sectional view taken along line VV of FIG.

FIG. 6 shows an example of a pneumatic circuit diagram for reciprocally driving an air cylinder 15.

[Description of symbols] 1 conductor roll 2 plating tank 10 roll polisher (roll polishing device) 13 support shaft 15 air cylinder (feed mechanism) 16 polishing member 18 support base (moving part main body) 21 rubber (elastic member) 22 sandpaper

Claims (3)

(57) [Claims] 1. A feed mechanism, which is capable of coming into contact with and separating from a roll to be polished, and which reciprocates the polishing member in the longitudinal direction of the roll, wherein the polishing member removes sandpaper through an elastic member such as rubber. In addition to the tensioned structure, it is replaceably attached to the moving part body of the feed mechanism, and the moving part body is vertically attached between the downward position and the upward position.
The counterweight is pivotally supported so that it can rotate in any direction.
Is located at the downward position of the moving unit body and above it.
The roll polishing device is characterized in that 2. A pair of guide members are provided on the moving section main body.
While arranging in the longitudinal direction at intervals in the width direction of
A guide tool that slidably fits these guide members
It is provided on the polishing member, and between the polishing member and the moving unit body.
The pin for connecting the two is detachably attached to the
Mounted roll polishing device. 3. A reciprocating device of the feeding mechanism is provided with an air shield.
The roll polishing apparatus according to claim 1 or 2, which uses a binder.