JP2774069B2 - Liquid removal device for hairline processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hairline processing machine for performing a hairline processing while supplying a processing auxiliary liquid such as a grinding oil or a cleaning oil to a work conveyed by a conveyor, and then supplies the processing auxiliary liquid to the work after the processing. The present invention relates to a liquid removing device to be removed.

[0002]

2. Description of the Related Art When polishing is performed while supplying a processing auxiliary liquid such as a grinding oil or a cleaning oil to a work in a hairline processing machine, it is necessary to remove an excessive processing auxiliary liquid attached to the work after polishing. However, such a hairline processing machine is provided with an oil removing device. 2. Description of the Related Art Conventionally, as an oil removing device, a liquid removal roll whose surface is covered with rubber is provided at a work unloading section, and the processing auxiliary liquid is removed by rolling the oil removal roll while pressing the oil removal roll against the surface of the work. A liquid draining pad whose surface is made of a fibrous material such as felt is provided, and the auxiliary liquid is removed by sliding the liquid draining pad against the surface of the work while pressing the liquid draining pad. Have been.

[0003]

However, in the conventional liquid removing apparatus, a liquid removing member such as a liquid removing roll or a liquid removing pad is positioned at a predetermined height in advance corresponding to the thickness of the work. The work is conveyed toward the fixed liquid draining member. In such a configuration, when the work is warped or the like and the front end is bent toward the liquid draining member, the front end edge of the work may hit the liquid draining member. If the work hits the draining roll, the edge of the leading edge of the work will pierce the surface of the rubber of the draining roll and be scratched. Irregularities occur, making it impossible to perform good drainage. Further, when the work hits the liquid draining pad, the surface of the pad is damaged by the edge of the leading edge of the work and is broken, so that even in this case, it is impossible to perform a good liquid draining.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent a workpiece from hitting a side surface of a liquid drainage member and causing damage.

[0005]

As a means for solving the above problems, a first aspect of the present invention is a hairline for performing a hairline processing by a polishing mechanism while supplying a processing auxiliary liquid to a work conveyed by a conveyor. In a processing machine, a liquid removing device that removes excess processing auxiliary liquid from a work by bringing a liquid removal member into contact with the work,
The liquid draining member is characterized in that the displacement between a position contacting the work and a position separating from the work is controlled based on a detection signal of a sensor that detects a position of the work on the transport path. Have. The invention of claim 2 is
The invention according to claim 1 is characterized in that the liquid draining member is provided with a liquid draining pad for draining the liquid by slidingly contacting the workpiece in a fixed posture.

[0006] The invention of claim 3 is claim 1 or claim 2.
In the invention of the invention, the liquid draining pad is composed of a fixed pad located on both sides of the work on the transport path and a movable pad movable in a direction to contact and separate from the fixed pad, and the fixed pad is separated from the work passage surface This is characterized in that the work is sandwiched at a position closer to the fixed pad side from the passage surface when the movable pad is moved to the fixed pad side.

[0007] The invention of claim 4 is the invention of claims 1 to 3.
The invention is characterized in that the draining member is made of a fibrous material.

[0008]

According to the first aspect of the present invention, when the position of the work is detected by the sensor, based on the detection signal, when the front edge of the work reaches a position below the liquid discharge member, the liquid discharge member is moved to the surface of the work. Is displaced to the position where it contacts. Therefore, when the front edge of the work approaches the draining member, it does not hit the side surface.

According to the second aspect of the present invention, since the draining pad is in sliding contact with the surface of the work in a fixed posture, the processing auxiliary liquid is pushed along the surface of the work by the draining pad. Drainage is performed.

According to the third aspect of the present invention, when the liquid is drained from the work, if the movable pad is moved to the fixed pad side, the work is interposed between the two pads and drained. If the work is to be passed between both pads without draining, move the movable pad to a position away from the fixed pad, and the work will pass between them without contacting either pad. I do.

In the invention according to claim 4, when foreign matter such as grinding powder or dust other than the processing auxiliary liquid adheres to the surface of the work, the foreign substance is transferred to the liquid removal member together with the processing auxiliary liquid, It is absorbed into the interstices of the fibers.

[0012]

According to the first aspect of the present invention, the front edge of the work is prevented from abutting against the liquid draining member, so that it is possible to prevent the liquid draining member from being damaged due to the end of the work. effective.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the processing auxiliary liquid is sandwiched between the work surface and the liquid removing member as in the case where the liquid removing member rolls on the work. Since there is no danger that the processing auxiliary liquid is removed from the workpiece surface, the processing auxiliary liquid can be reliably removed.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect, when the workpiece is passed without performing liquid drainage, both the fixed pad and the movable pad are used. The contact between the liquid draining pad and the work can be avoided since the contact between the liquid drain pad and the work is unnecessary.

According to the fourth aspect of the present invention, in addition to the effects of any one of the first to third aspects, the foreign matter transferred from the work to the liquid draining member is absorbed into the fibers of the liquid draining member. As a result, the foreign matter does not remain exposed on the surface of the liquid draining member, and it is possible to prevent the foreign matter from adhering to the work or damaging the work due to the foreign matter.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the hairline processing machine according to the present embodiment includes a conveyor 10 that horizontally conveys a thin plate-shaped work (not shown), and detects a position of the work on a conveyance path of the conveyor 10.
A sensor 15A, 15B, a polishing mechanism 20 for performing a hairline process on the workpiece conveyed by the conveyor 10, and a liquid removing device 100 for removing the cleaning oil supplied to the workpiece during polishing by the polishing mechanism 20. It is configured.

The conveyor 10 is constituted by providing five pairs of feed rolls 12A and 12B, which form a pair up and down, between a pair of frames 11 in a predetermined arrangement in the horizontal direction. These feed rolls 12A and 12B are arranged in two pairs on both sides of a polishing position by a later-described polishing mechanism 20 in the conveying direction of the conveyor 10, and are separated from the polishing mechanism 20 by a liquid removing device 100 to be described later. A pair is arranged at the opposite position. The feed rolls 12A and 12B of each pair are configured to rotate interlockingly by engagement of gears (not shown), and the lower five feed rolls 12B of each pair are rotatable interlockably by a chain and sprockets (not shown). All the feed rolls 12B are connected to each other and are driven to rotate in the forward and reverse directions at the same peripheral speed by a single motor (not shown). The work is fixed in the forward direction (the right direction in FIG. 1) indicated by the arrow W in FIG. 1 and the reverse direction opposite to the arrow W in a state where the work is sandwiched between the feed rolls 12A and 12B in order. It is conveyed at the speed of. Further, the number of rotations of the feed rolls 12A and 12B is counted by a rotary encoder (not shown), and thereby the work transfer distance is detected. Then, sensors 15A, 15 described later are used.
Feeding roll 12 based on detection signal output from B
The direction and timing of conveyance of the conveyor 10 are controlled based on the rotation speeds of A and 12B.

The sensors 15A and 15B are provided on both sides of the polishing mechanism 20 at an intermediate position between two pairs of feed rolls 12A and 12B. These sensors 15A and 15B
This is called a photoelectric switch that irradiates light toward the pass area of the work, detects reflected light from the work, and converts the light into an electric signal, and the light emitting and receiving unit faces the upper surface of the work. . These sensors 15A and 15B
The position of the front edge and the position of the rear edge of the work are detected, and the detection signal is output to a control circuit (not shown).

The control circuit controls the direction and timing of conveyance of the conveyor 10 and a polishing mechanism 20 described later.
Control of the operation and stop of the liquid, control of the operation of the liquid removing device 100 described later, and oil draining rolls 120A and 120 described later.
B, 130A, and 130B are controlled.

Next, the polishing mechanism 20 will be described. As shown in FIG. 2, the polishing mechanism 20
A long sanding belt 22 fed from the feeding roll 21, a winding roll 23 for winding the sanding belt 22, and a sanding belt 22.
And a receiving roll 25 for contacting the workpiece with the workpiece. Further, it has a drive mechanism 30 for running the sanding belt 22, a tension mechanism 40 for tensioning the sanding belt 22, and a braking mechanism 50 for preventing the sanding belt 22 from running in the opposite direction.

As shown in FIGS. 4 and 5, the drive mechanism 30 includes a motor 31 for generating a rotational drive force in only one direction, and a reduction gear train (not shown) connected to the motor 31 via a coupling 32. And a speed reducer 33 in which is accommodated. A drive sprocket 34 is provided on the speed reducer 33, and a driven sprocket 35 is provided diagonally below and coaxially rotates with the contact roll 24, and a transmission sprocket is provided at a position adjacent to the winding shaft 23 </ b> A of the winding roll 23. 36 are provided. An endless chain 37 is wound around these sprockets 34, 35, 36. Thus, the rotational driving force of the motor 31 is transmitted to the contact roll 24.

The transmission sprocket 36 is provided with a transmission gear 38 which can rotate integrally with the transmission sprocket 36 via a torque limiter 60 described later. The transmission gear 38 rotates integrally with the winding shaft 23A. The transmission gear 39 is engaged with the transmission gear 39. Thereby, the motor 31
Is transmitted to the take-up roll 23. Then, the sanding belt 22 is moved by the rotation driving force transmitted to the contact roll 24 and the winding force transmitted to the winding roll 23 to the feeding roll 2.
2 and is wound in the winding roll 23 while traveling in one direction indicated by an arrow B in FIG. The traveling direction of the sanding belt 22 is the same as the forward conveyance direction of the work (the direction of the arrow W in FIG. 1) at the polishing position where the sanding belt 22 can be wound around the contact roll 24 and contact the work. In addition, sanding belt 22
Is set to be lower than the transport speed of the work.

The above-described transmission sprocket 36 and transmission gear 3
8 is provided with a torque limiter 60 interposed therebetween.
The structure shown in FIG. Transmission shaft 36 of transmission sprocket 36
A rotating body 61 integrally rotatably mounted on A has a flange 62 formed thereon, and a driven ring in which a transmission gear 38 is fixed by bolts 66 to a thin ring-shaped clutch plate 63 and an outer mounting flange 65. 64, a thin ring-shaped clutch plate 67 and a pressing ring 68 are sequentially fitted. The elastic force of the disc spring 69 causes the clutch plates 63, 63 and the driven ring 64 to be sandwiched in the axial direction between the flange 62 and the pressing ring 68. In the torque limiter 60, when the value of the transmission torque due to the load acting on the take-up shaft 23A becomes larger than a certain value, slippage occurs on the contact surface between the driven ring 64 and the rotating body 61 with respect to the clutch plate 63.
As a result, the transmission of the rotational driving force from the transmission shaft 36A to the winding shaft 23A is momentarily interrupted, and the winding shaft 23A is rotated while changing the speed relative to the transmission shaft 36A. You. Therefore, contact roll 2
The rotation of No. 4 is always performed at a constant speed, whereas the winding roll 23 can be rotated so that the angular speed is reduced by the action of a load. With this configuration, even if the winding diameter gradually increases as the winding of the sanding belt 22 on the winding roll 23 proceeds, the winding speed of the sanding belt 22 by the winding roll 23 is increased. Can be maintained at the same speed as the feed speed of the sanding belt 22 by the contact roll 24.

The operation of the driving mechanism 30 is controlled based on the detection signals from the sensors 15A and 15B. When a predetermined time elapses with reference to the time when the detection signals are output to the control circuit, the sanding belt is operated. 22
Is started and stopped.

The tension mechanism 40 includes a tension roll 41 and a pressing roll 42 as shown in FIG. The tension roll 41 includes a bracket 43
Fixed shaft 4 that is not rotatable at a certain position
4 is fitted so as to be relatively rotatable through a torque limiter (not shown) having a structure similar to that of the torque limiter 60 described above. Therefore, when the tension roll 41 receives a pulling force toward the contact roll 24 via the sanding belt 22, the tension roll 41 only rotates by generating a slip with the fixed shaft 44, and receives the pulling force. It does not rotate while it is not.

The pressing roll 42 is rotatably supported by one end of an arm 46 supported by a support shaft 45 fixed to a frame (not shown). A piston rod 48A of an air cylinder 48 rotatably supported by a support rod 47A erected on a frame 47 is connected to the other end of the arm 46 so as to be relatively rotatable. The pressing roll holds the tension roll 4 while sandwiching the sanding belt 22 by the pressure of the working air in the air cylinder 48.
Pressed to 1.

Thus, the sanding belt 22
By being sandwiched between the tension roll 41 and the pressing roll and receiving the braking force of the torque limiter, loosening between the tension mechanism 40 and the winding roll 23 is prevented, and the tension is always maintained.

As shown in FIG. 2, the braking mechanism 50 includes a braking roll 51, an air cylinder 52, and an arm 53. The arm 53 is rotatably supported by a support shaft 54 at a predetermined position of a frame (not shown). The air cylinder 52 is rotatably supported by a bracket 55 of a frame (not shown), and its piston rod 52A is connected to one end of the arm 53 so as to be relatively rotatable. A fixed shaft 56 is attached to the other end of the arm 53, and the brake roller 51 is rotatably supported on the fixed shaft 56 via a non-reversible clutch (not shown).

The braking roll 51 is pressed by the contact roll 24 while sandwiching the sanding belt 22 by the pressure of the working air in the air cylinder 52. The position where the braking roll 51 is pressed against the contact roll 24 is a position slightly shifted to the winding roll 23 side from the position where the contact roll 24 contacts the sanding belt 22 to the work.

The irreversible clutch of the brake roll 51 has a structure such as a ratchet mechanism in which two coaxial rotary members are engaged so as to be able to rotate only in one direction. Therefore, although the braking roll 51 freely rotates in the same direction as the running direction of the sanding belt 22 with respect to the fixed shaft 56, the rotation in the opposite direction is prevented by the irreversible clutch. I have.

While the contact roll 24 rotates only at a fixed position, the receiving roll 25 located directly below the contact roll 24 can be moved up and down by an elevating mechanism 70 shown in FIG. The lifting mechanism 70 will be described.
Gear box 71 fixed to a frame not shown in FIG.
A male screw rod 72 whose axis is oriented vertically is freely supported only in rotation, and a worm 74 is meshed with a worm wheel 73 formed on the male screw rod 72.
Sprocket 74A integrally attached to worm 74
A chain 76 is hung between a sprocket 75A integrally attached to the handle 75 (see FIG. 2) and the sprocket 75A. When the handle 75 is rotated, the male screw rod 72 is engaged by the engagement of the worm 74 and the worm wheel 73. Is rotated.

The upper end portion of the male screw rod 72 protruding from the gear box 71 is provided with a female screw hole 77A of an elevating body 77 having only a vertical movement freely provided by a frame guide (not shown).
The elevating body 77 is moved up and down by the rotation of the male screw rod 72 to be adjusted to a predetermined height. In the state where the rotation of the male screw rod 72 is stopped, the transmission of the rotational force from the worm wheel 73 to the worm 74 is prevented, so that the elevating body 77 is maintained at a constant height.

An air cylinder 78 having a piston rod 78A protruding upward is fixed to the elevating body 77.
The basic height of the air cylinder 78 is adjusted by changing the height of the elevating body 77 by operating the handle 75 described above. Above the air cylinder 78, an arm 79B is attached to a bracket 79A erected on a frame 79.
Are supported in a cantilevered state so as to freely swing in the vertical direction.
The receiving roll 25 is rotatably supported by the arm 79B, and an air cylinder 78 is attached to the free end of the arm 79B.
Are connected.

The supply and discharge of the working air to and from the air cylinder 78 are controlled based on the detection signals from the sensors 15A and 15B described above, and a predetermined time is set based on the time when the detection signal is output to the control circuit. Supply and discharge of the working air are performed when the time has elapsed.

When the air cylinder 78 is actuated and its piston rod 78A advances and retreats, the receiving roll 25 swings up and down together with the arm 79B, and the receiving roll 25 pushes up the work and comes into contact with the sanding belt 22 from the raised position and the work. It is configured to be displaced between the separated lower movement position.

The height of the lowermost surface of the portion of the sanding belt 22 that is in contact with the contact roll 24 is set so that the upper surface of the work is separated from the sanding belt 22 when the work receiving roll 25 is at the lower position. Is set. Therefore, in a state where the receiving roll 25 is displaced to the lower movement position, the work can pass through the polishing mechanism 20 without being polished. Further, the receiving roll 25 pushes up the work and the sanding belt 2
In the state where the workpiece 2 is in contact with the workpiece 2, the workpiece is slightly upwardly curved so as not to affect the conveyance.

The winding roll 23 can be easily replaced by a mechanism shown in FIG. One end of the take-up shaft 23A of the take-up roll 23 is held by a swing bracket 83 that is swingably supported by a support shaft 82 on a frame 81. A bearing 8 is provided in the mounting hole 84 at the swing end of the swing bracket 83.
5, a rotary cylinder 86 is fitted.
The taper surface 86A of the winding shaft 23A is
It is structured to be pressed. Thereby, the bolt 8
By removing 7, the winding shaft 23A is released from the pressing of the swing bracket 83. From this state, the take-up roll 23 can be removed by extracting it in the axial direction. When the bolt 87 is removed, the swing bracket 83 comes into contact with the stopper 88 to be in a state shown by a chain line in FIG. When mounting the winding roll 23, the end of the winding shaft 23A may be held in the reverse procedure.

Further, the polishing mechanism 20 is provided with a processing auxiliary liquid supply port 91A for supplying a processing auxiliary liquid such as a grinding oil and a cleaning oil to the work. This processing auxiliary liquid supply port 91A is provided at a position slightly to the left of the contact roll 24 in FIG. Therefore, when the work is first conveyed to the polishing mechanism 20, the processing auxiliary liquid is supplied to the work immediately before contacting the sanding belt 22. The processing auxiliary liquid supply port 91B is also provided at a position on the right side of the polishing mechanism 20 in FIG. The processing auxiliary liquid supply port 91B supplies a processing auxiliary liquid to the work once polished by the polishing mechanism 20.
When the work is conveyed in the direction opposite to the arrow W in FIG. 1 and polished again, the work assisting liquid can be supplied before coming into contact with the sanding belt 22.

In FIG. 1, an arrow W is shown with respect to the polishing mechanism 20.
The liquid removing device 100 is positioned at a predetermined interval in the direction.
Is provided. As shown in FIG. 9, the liquid removing device 100 includes three pairs of liquid draining pads (liquid draining members, which are constituent elements of the present invention) 10 that form a pair at the top and bottom of the work conveying surface.
1A and 101B. Each draining pad 101A, 1
01B is attached to horizontal elongated supports 102A and 102B orthogonal to the direction of transporting the work, and a sponge-like pressing body 104 and a cloth made of a fibrous material such as felt are provided in recesses 103 of the supports 102A and 102B. And an oil-absorbing member 105 in the shape of a circle. The oil absorbing member 105
It is mounted in a state where it covers the pressing body 104 and is folded on both sides thereof, and is fixed by fixing plates 106 and screws 107 on the side surfaces of the supports 102A and 102B. The surface of the oil absorbing member 105 that comes into contact with the pressing body 104 comes into contact with the work over a certain range in the transport direction, whereby the processing auxiliary liquid adhering to the surface of the work is absorbed. It has become.

The upper draining pad (movable pad, which is a component of the present invention) 101A of each pair of draining pads 101A and 101B is provided so as to be able to move up and down by an elevating mechanism 110, which will be described later. The pad (fixing pad, which is a component of the present invention) 101B is fixed to the frame 108 and provided. Upper draining pad 101A
Is raised, the height of the upper surface of the lower liquid draining pad 101B is adjusted by a pair of feed rolls 12A and 12B located on both sides of the liquid removing device 100 and an oil draining roll 1 described later.
The height is set so as not to contact the lower surface of the work conveyed by being sandwiched between 20A and 120B.

That is, when the upper liquid draining pad 101A is lowered, the work is pushed down so as to bend slightly downward so as not to hinder the conveyance, and comes into contact with the lower liquid draining pad 101B, whereby the work is moved up and down. The oil is drained while being sandwiched between the two draining pads 101A and 101B. Further, in a state where the upper liquid drain pad 101A rises and does not contact the workpiece, the workpiece does not contact the lower liquid drain pad 101B, so that the workpiece is not drained in the direction of the arrow W in FIG. It is possible to carry it out.

Next, the raising and lowering mechanism 110 of the upper liquid drain pad 101A will be described with reference to FIG. 2 corresponding to both ends of the liquid drain pad on the lower surface of the frame (not shown)
In the position, the bracket 1 that rotatably supports the worm 112 and the worm wheel 113 that mesh with each other is provided.
11 is fixed. The axis of the worm 112 is parallel to the length direction of the liquid drain pad 101A, and the axis of the worm wheel 113 is oriented in the up-down direction. A male screw rod 114 protruding below the bracket 111 is attached to the worm wheel 113 so as to be integrally rotatable. The lower end of the male screw rod 114 is screwed into a female screw hole 115A formed at the end of an elongated support 115 along the length of the liquid drain pad 101A. When a handle (not shown) attached to a drive shaft 112A extending from the worm 112 is operated, the worm 112 and the worm wheel 113 are operated.
The rotation of the male screw rod 114 through the engagement of
The support body 115 can be moved up and down to adjust its height.

The air cylinder 1 is provided at both ends of the support body 115.
A downwardly projecting piston rod 116A is connected to the lifting / lowering body 117.
The elevating body 117 is elongated in parallel with the draining pad 101A,
Up and down guide pins 11 attached to both ends thereof
8 is fitted in the guide hole 115B of the support body 115 so as to be vertically movable. Further, the elevating body 117 has the support 1
02A is attached. Lifting body 117 and support 1
02A, the height can be adjusted by a bolt 118 at one end shown in FIG. 10, whereby the draining pad 101A attached to the support 102A can be adjusted.
The inclination of can be adjusted.

In the elevating mechanism 110, the supply and discharge of the working air to the air cylinder 116 for each liquid drain pad 101A are individually controlled based on the detection signal from the sensor 15B, and the detection signal is output to the control circuit. The supply and discharge of the working air are performed when a predetermined set time elapses with reference to the time point.

When the air cylinder 116 operates and the piston rod 116A moves forward and backward, the elevating body 117, the support 1
02A and the liquid drain pad 101A are displaced up and down, and the liquid drain pad 101A is displaced between a lowering position where it abuts on and pushes down the work corresponding to the entry position of the work and an ascending position where it is separated from the work. It has become.

At a position closer to the polishing mechanism 20 than the liquid removing device 100, a pair of upper and lower oil removal rolls 120A, 120 for removing the processing auxiliary liquid adhering to the surface of the work is provided.
B is provided. Each support shaft 120A, 120B
Each is rotatably supported by support shafts 124A and 124B. As shown in FIG. 8, the lower oil skimmer 120B is normally kept at a constant height with respect to the frame 121. However, if necessary, the bearing body 123 can be raised and lowered by adjusting the bolt 122. Thereby, the height can be adjusted. On the other hand, the upper oil draining roll 120A is vertically movable. The support shaft 124A of the upper oil skimmer 120A is
Piston rod 1 of air cylinder 125 fixed to 21
25A, and is driven up and down based on a detection signal from the sensor 15B.

Further, a pair of upper and lower oil draining rolls 130A, 130B having the same configuration as above is provided at the most extreme end position (left end in FIG. 1) of the transport path of the contact roll 24. The oil draining rolls 130A and 130B are also arranged on the upper oil draining roll 1 based on a detection signal from the sensor 15A.
30A goes up and down.

Further, the polishing mechanism 20 and the liquid removing device 100
A pair of upper and lower cleaning brushes 140A and 140B are provided between the cleaning brushes 140A and 140B. These cleaning brushes 140A, 140B
Is rotated by a driving mechanism (not shown) to rub the surface of the work.
Foreign matters on the surface of the work are wiped and removed by A and 140B.

Next, the operation of this embodiment will be described. When the workpiece is conveyed, the traveling of the sanding belt 22 of the polishing mechanism 20 stops, the receiving roll 25 is at the lower position, the upper oil draining roll 130A rises, and the upper liquid draining pad of the liquid removing device 100 is moved. 101A is in the raised position.

In this state, when the work is conveyed from the starting end side (the left side in FIG. 1) of the conveyor 10 in the direction of the arrow W in FIG.
Start end sensor 15A that detects the position of the front edge of the work
The receiving roll 25 rises and the running of the sanding belt 22 starts almost at the same time when the front edge of the work reaches directly below the contact roll 24, based on the detection signal from. Along with this, the processing auxiliary liquid is supplied toward the workpiece from the processing auxiliary liquid supply port 91A. This allows
The surface of the work is polished by the sanding belt 22 and subjected to hairline processing. Since the traveling speed of the sanding belt 22 at this time is lower than the transport speed of the work, the relative polishing direction of the sanding belt 22 to the work is opposite to the arrow W. At this time,
Since the sanding belt 22 is kept in tension between the tension roll 41 and the take-up roll 23 by the tension mechanism 40, the running of the sanding belt 22 is stabilized, and the sanding belt 22 constantly polishes the work uniformly. Do.

Thereafter, based on the detection signal from the sensor 15A which has detected the position of the trailing edge of the work, the traveling of the sanding belt 22 is stopped at the same time when the trailing edge of the work finishes passing through the contact roll 24, and is received. The roll 25 moves down. Then, when the trailing edge of the work passes just below the sensor 15B on the end side, it is detected that the work has been conveyed by the conveyor 10 based on the detection signal from the sensor 15A.

Thereafter, the conveyor 10 resumes driving in the direction opposite to the above, and the work is conveyed in the direction opposite to the direction of the arrow W in FIG. At this time, the processing auxiliary liquid supply port 9 on the end side
The processing auxiliary liquid is supplied from 1B to the work.
Then, based on a detection signal from the sensor 15B on the end side that has detected the front edge (the left edge in FIG. 1) in the transport direction of the workpiece, the workpiece is received at the same time as the front edge of the workpiece reaches directly below the contact roll 24. The running of the sanding belt 22 resumes with the rise of the roll 25, and the hairline processing on the work is performed again. At this time, the polishing direction of the sanding belt 22 relative to the workpiece is the same as the arrow W.

At this time, the sanding belt 22
Receives frictional resistance in the direction opposite to the traveling direction due to contact with the workpiece, but the braking mechanism 50 prevents the sanding belt 22 from traveling in the opposite direction. Therefore, the sanding belt 22 is
The tension is always maintained without causing any slack between the workpiece and the tension roll 41, and the workpiece is polished satisfactorily.

In this way, while the work is traveling back and forth, the work is polished so that the polishing directions are opposite to each other on the outward path and the return path, whereby the hairline processing is performed twice. Then, when the rear edge (the right edge in FIG. 1) of the work in the transport direction has passed through the contact roll 24, the receiving roll 25 moves down and the running of the sanding belt 22 stops. Further, when the trailing edge of the workpiece passes the sensor 15A, the sensor 1
The conveyance of the work by the conveyor 10 is stopped based on the detection signal from 5A.

Thereafter, the conveyer 10 again moves the arrow W
The transfer of the workpiece in the direction starts. At this time, if hairline processing is performed on the work, supply of the processing auxiliary liquid, lifting of the receiving roll 25, and running of the sanding belt 22 are performed. When the hairline processing is not performed, the work is supplied with the sanding belt 2 without supplying the processing auxiliary liquid.
Polishing mechanism 2 without contacting either
Pass through zero. And the cleaning brushes 140A, 140B
The foreign matter on the surface of the work is removed when the work passes through, and the processing auxiliary liquid on the surface of the work is removed while passing through the oil draining rolls 120A and 120B on the end side.

Thereafter, the work enters the liquid removing apparatus 100, and three works are performed based on detection signals from the sensor 15B on the end side which has detected the front edge (the right edge in FIG. 1) in the work conveyance direction. The liquid draining pad 101A descends sequentially, and at the same time when the front edge of the work reaches directly below each liquid draining pad 101A, the work is removed from the lower liquid discharging pad 101A.
And B. Then, while passing between these liquid removal pads 101A and 101B, the processing auxiliary liquid on the surface of the work is absorbed and removed by wiping. At this time, the liquid drain pad 101A descends only after the front edge of the work reaches directly below the liquid drain pad 101A.
During the position before 1A, the liquid draining pad 101A is not lowered. Therefore, even if the work is warped and its front edge is directed obliquely upward, there is no risk that the front edge of the work abuts against the side surface of the liquid drain pad 101A. After the oil draining is performed in this manner, the work is carried out from the end of the conveyor 10, and the hairline processing on the work is completed as described above.

As described above, in the present embodiment, when the front edge of the work is located immediately below the liquid drain pad 101A, the liquid drain pad 101A is detected based on the detection signals from the sensors 15A and 15B that have detected the position of the work. Is lowered so as to come into contact with the workpiece, so that the front edge of the workpiece abuts against the side surface of the fluid draining pad 101A as in the case where the liquid draining pad 101A is in a standby state at a position where it can contact the workpiece in advance. There is no such thing. Therefore, it is possible to prevent the liquid drain pad 101A from being damaged due to the work hitting the side surface of the liquid drain pad 101A.

The draining pads 101A, 101B
Is designed to remove the processing auxiliary liquid by pushing it off on the surface of the work. For this reason, the processing auxiliary liquid is sandwiched between the work surface and the liquid removing member as in the case where the liquid removing member is in a roll shape and the liquid removing member rolls on the surface of the work. There is no fear. Therefore, the processing auxiliary liquid on the work surface can be reliably removed.

Further, since the oil absorbing member 105 that comes into contact with the work of the liquid draining pads 101A and 101B is made of a fibrous material such as felt, foreign matter transferred from the work is absorbed into the fiber of the oil absorbing member 105. It does not remain exposed on the surface. Therefore, it is possible to prevent the foreign matter of the oil absorbing member 105 from adhering to the work or damaging the work by the foreign matter.

When the liquid is not to be drained when the work passes through the liquid removing device 100, the liquid drain pad 101A may be kept at an upper position without being lowered. With this configuration, when the workpiece passes, neither the upper and lower liquid drain pads 101A and 101B come into contact with the workpiece.
In the case where foreign matter has adhered to A and 101B, it is possible to prevent the foreign matter from adhering to the work and soiling the work or the foreign matter from damaging the work.

The method of transporting the work and the method of polishing the work in the forward and backward paths described in the above embodiment are examples of the operation of the hairline processing machine of the present embodiment. In the hairline processing machine described above, any hairline processing can be performed according to programs other than the above. Specifically, (a) polishing is performed on the outward path of the work (the direction of the arrow W in FIG. 1), and is not performed on the return path.
Polishing is performed again in the second forward pass. (B) No polishing is performed in the first forward pass of the work, first polishing is performed in the return pass, and second polishing is performed in the second forward pass. 1 is transported only once in the direction of the arrow W to perform polishing only once.
(D) Various kinds of processing methods are possible, such as making the work reciprocate two or more times and performing arbitrary polishing on the outward and return paths between them.

<Other Embodiments> The present invention is not limited to the embodiments described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention.

(1) In the above embodiment, the case where the sanding belt 22 in the polishing mechanism 20 is of an end type which is fed from the feeding roll 21 and wound on the winding roll 23 has been described. A configuration using a sanding belt may be used.

(2) In the above embodiment, the case where the torque limiter 60 is provided on the tension roll 41 as the tension mechanism 40 in the polishing mechanism 20 has been described.
The tension mechanism may be configured by providing a torque limiter to the feeding roll.

(3) In the above-described embodiment, the case where the brake roll 51 is pressed against the contact roll 24 as the brake mechanism 50 in the polishing mechanism 20 has been described. The braking mechanism may be configured by providing the brake mechanism without pressing the roll.

(4) In the above embodiment, the single driving mechanism 3
Although the case where both the rotation drive of the contact roll 24 and the winding drive of the take-up roll 23 are performed by 0 is described, the rotation drive of the contact roll and the take-up drive of the take-up roll are performed by separate drive mechanisms. It is good also as a structure which performs.

(5) In the above embodiment, the case where the contact roll 24 is rotationally driven has been described. However, the contact roll 24 may be freely rotated without applying a rotational driving force to the contact roll.

(6) In the above embodiment, the sensors 15A, 1
Although the case where a photoelectric switch is used as 5B has been described, a sensor using other detection means such as magnetism or ultrasonic waves other than the photoelectric switch may be used.

(7) In the above embodiment, the sensors 15A, 1
Although the case where the work 5B is provided at two places on both sides of the polishing mechanism 20 in the work transfer direction to reciprocate the work has been described, the sensor is provided only at one position on the front side of the polishing mechanism in the work transfer direction. May be polished by sailing in only one direction.

(8) In the above embodiment, the draining pad 10
The case where three pairs of 1A and 101B are provided in the direction of transporting the work has been described, but the number of liquid drain pads may be one pair, two pairs, four or more pairs.

(9) In the above embodiment, the case where the upper pad of the upper and lower liquid drain pads 101A and 101B is displaced vertically is described. However, the upper liquid drain pad is fixed and the lower liquid pad is fixed. The liquid drain pad may be configured to be displaced vertically, or the liquid drain pads on both the upper and lower sides may be displaced vertically.

(10) In the above embodiment, the liquid draining pads 101A and 101B are used as the liquid draining members that come into contact with the workpiece while sliding in a fixed position. However, the workpiece is rolled using the roll-shaped liquid draining member. It is good also as composition which performs liquid draining while making it. In this case, the material of the surface of the roll-shaped liquid draining member may be a fibrous material such as felt or a material capable of draining liquid such as rubber.

(11) In the above embodiment, the pad 101
Although a fibrous material such as felt is used as the oil absorbing member 105 that comes into contact with the workpieces A and 101B, other materials such as rubber can be used instead of the fibrous material.

(12) In the above embodiment, the traveling speed of the sanding belt 22 is set to be lower than the conveying speed of the work. However, the present invention is not limited to this. In the case where the hairline processing is performed in only one direction without performing, the traveling speed of the sanding belt 22 may be set to be higher than the transport speed of the work.

[Brief description of the drawings]

FIG. 1 is an overall front view of an embodiment of the present invention.

FIG. 2 is a partially enlarged front view of a polishing mechanism.

FIG. 3 is a partially cutaway enlarged front view showing a lifting mechanism of a receiving roll.

FIG. 4 is an enlarged front view showing a drive mechanism of a contact roll and a take-up roll.

FIG. 5 is an enlarged plan view showing a drive mechanism of a contact roll and a take-up roll.

FIG. 6 is a partially cutaway enlarged plan view showing the structure of a torque limiter.

FIG. 7 is a partially cut-away enlarged side view showing a bearing structure of a take-up roll.

FIG. 8 is a cross-sectional view showing a bearing structure of an oil draining roll.

FIG. 9 is an enlarged front view of a liquid removal pad of the liquid removing device.

FIG. 10 is a sectional view showing an elevating mechanism of a liquid removal pad of the liquid removing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Conveyor 15A, 15B ... Sensor 20 ... Polishing mechanism 100 ... Liquid removal device 101A ... Liquid draining pad (movable pad) 101B ... Liquid draining pad (fixed pad)

Claims (4)

(57) [Claims] In a hairline processing machine for performing a hairline processing by a polishing mechanism while supplying a processing auxiliary liquid to a work conveyed by a conveyor, an excess processing auxiliary liquid is supplied by bringing a liquid removing member into contact with the work. A liquid removing device that removes from the work, wherein the liquid draining member is a position that contacts the work based on a detection signal of a sensor that detects a position of the work on a transport path and a position that is separated from the work. A liquid removing device for a hairline processing machine, wherein a displacement between the liquids is controlled. 2. The liquid removing device according to claim 1, wherein the liquid removing member comprises a liquid removing pad that performs liquid removal by sliding and contacting the workpiece in a fixed posture. apparatus. 3. The liquid draining pad includes a fixed pad located on both sides of a work on a transport path and a movable pad movable in a direction of coming and coming from the fixed pad, wherein the fixed pad is a passage surface of the work. Wherein the work is sandwiched at a position closer to the fixed pad side from the passage surface when the movable pad is moved to the fixed pad side. A liquid removing device for a hairline processing machine according to claim 1 or 2. 4. The liquid removing device for a hairline processing machine according to claim 1, wherein the liquid removing member is made of a fibrous material.