JP2001030150A - Polishing tool dressing device for continuous polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and certainly perform a dressing by transferring a dressing carriage in a state of the upper surface of a dressing surface plate in contact with a polishing tool, and reciprocating the dressing surface plate in the direction orthogonal to the transferring direction of the dressing carriage. SOLUTION: A dressing carriage 54 is transferred in the moving direction (a) and a diamond chip surface plate 56 is reciprocated in the reciprocating direction (b) in a state of the tip of a brush body of a resin brush surface plate 55 and a diamond chip embedded surface on the upper surface of the diamond chip surface plate 56 in contact with a polishing tool, and thereby a dressing of the polishing tool is easily and certainly performed. Thus, clogging of the polishing tool is eliminated by the brush body of the resin brush surface plate 55, the diamond chip embedded surface on the upper surface 56 of the diamond chip surface plate grinds the polishing tool, the polishing tool can be well reproduced without generating harmful stripes to recover a polishing efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing tool dressing apparatus in a continuous polishing apparatus.

[0002]

2. Description of the Related Art An apparatus for automatically and continuously polishing a relatively thin glass plate such as a liquid crystal glass substrate is disclosed in, for example, JP-A-2-83150. 1 is a perspective view schematically showing a continuous polishing apparatus disclosed in JP-A-2-83150. That is, a polishing line is provided on one side of the base frame 1 installed on the floor surface, and a pair of right and left rails 2 and 2 are laid on the polishing line. On the rails 2, a plurality of polishing carts 4, 4,... Mounted on a glass plate 3 to be polished so as to be able to travel in the transfer direction a, are installed. It is stuck and fixed via a thin cushion material so that the upper surface is not damaged.
The polishing cart 4 is formed in a rectangular shape slightly longer in the transfer direction a in plan view, and the polishing carts 4 adjacent in the transfer direction a are formed.
The front end and the rear end of each of them can come into contact with each other during transfer.

A rack (not shown) is provided on the lower surface of the polishing cart 4 in parallel with the rails 2 and 2, and the rack carries a polishing cart disposed in a space between the left and right rails 2 and 2. Pinion attached to the output shaft of the motor for
The polishing cart 4 can be transferred in the transfer direction A via a pinion and a rack by driving a polishing cart transfer motor. The motor for transporting the polishing cart is provided with an inverter so that the transport speed of the polishing cart 4 can be adjusted. As described above, the polishing cart 4 is transported along the rails 2 and 2. However, in the return line after the glass plate 3 is polished, the polishing cart 4 is moved by the roller conveyor 5 in the transfer direction A. It is possible to return in the opposite arrow B direction.

The base frame 1 is provided with a frame wall 1a so as to be located on one side of the rail 2.
A plurality of cantilevered horizontal beams 6 are provided on the frame wall 1a at regular intervals in the transfer direction A.
Are fixed so as to protrude upward from the rails 2, 2. Each horizontal beam 6 has two vertical axes 7 at predetermined intervals in the width direction of the polishing cart 4 transferred on the rail 2.
7 is rotatably supported via a bearing, and a disk 8 is attached to the lower end of the longitudinal axis 7. Further, a support plate 10 is attached to the lower ends of the eccentric shafts 9 and 9 which are fixed to the lower surface of the disk 8 eccentrically with respect to the rotation axis of the longitudinal axis 7, and a fluid is provided below the support plate 10. A platen 12 is provided so as to be vertically movable via a pressure cylinder 11.

[0005] Guide rods 13, 13 extending upward are planted on both sides in the width direction of the polishing cart 4 of the surface plate 12.
The guide rods 13 are slidably fitted to cylindrical guide blocks 14 provided on both sides of the support plate 10 in the width direction of the polishing cart 4. The platen 12 is guided by a guide block 14 via a guide rod 13 when ascending and descending, and is not inclined left and right.
Below this, a polishing tool 16 is mounted via a universal joint 15. Universal joint 15
Is provided in order to flexibly cope with a tapered glass plate 3 or a step of a seam of the glass plate 3 positioned before and after the transfer direction A. Polishing tool 1
Numeral 6 is formed in a strip shape extending in the width direction of the polishing cart 4 in a plan view, in order to uniformly polish the surface of the glass plate 3. The polishing tool 16 is composed of a polishing pad made of, for example, urethane foam.

[0006] Although not shown, the disk 8 includes:
It is desirable to mount a balancer on the opposite side of the eccentric shaft 9 in order to eliminate the rotational moment caused by the eccentric shaft 9. This is to minimize the vibration of the polishing tool 16.

[0007] Above the horizontal beams 6, 6,...
A drive shaft 18 to which a bevel gear 17 is externally fitted and fixed is rotatably disposed, and the drive shaft 18 can be driven by a polishing tool rotation motor (not shown). . Also, the frame wall surface 1a
, A pair of upper and lower bearings 19, 19 are respectively attached to the polishing tools 16, and the upper end of the bearing 19 has a bevel gear 20, which meshes with the bevel gears 17, 17,.
20 are externally fitted and fixed, and a pulley 21 is externally fitted to the lower end, and a fixed vertical intermediate shaft 22 is rotatably fitted thereto.

Pulleys 23 and 24 are externally fitted and fixed to the upper end of the longitudinal axis 7 on the side close to the frame wall surface 1a, and the longitudinal axis 7 on the side separated from the frame wall surface 1a.
A pulley 25 is externally fitted and fixed to the upper end. An endless belt 26 is stretched over the pulleys 21 and 23, and an endless belt 27 is stretched over the pulleys 24 and 25. Since the motor for rotating the polishing tool is provided with the inverter, the polishing tool 16 can adjust the rotation speed.

In the apparatus shown in FIG. 7, the polishing cart 4 is continuously transferred in the transfer direction A via a pinion and a rack by driving a polishing cart transferring motor. At this time, the polishing tool 16 is lowered by the fluid pressure cylinder 11 via the surface plate 12, the lower surface of the polishing tool 16 is brought into contact with the upper surface of the glass plate 3, and the drive shaft 18 is driven by the motor for rotating the polishing tool. You. For this reason, the longitudinal axis 7 on the side close to the frame wall surface 1 a rotates via the drive shaft 18, the bevel gears 17 and 20, the intermediate shaft 22, the pulley 21, the belt 26 and the pulley 23, and is coaxial with the pulley 23. Provided pulley 24,
The vertical axis 7 on the side away from the frame wall surface 1a via the belt 27 and the pulley 25 rotates. As a result, the vertical axes 7, 7
As a result, the polishing tool 16 rotates in the horizontal direction via the eccentric shafts 9, 9, and the surface of the glass plate 3 is continuously polished by the polishing tool 16 while being transported by the polishing cart 4.

At the time of polishing, the polishing cart 4 at the front in the transfer direction A is pushed forward by the polishing cart 4 at the rear in the transfer direction A. Further, a polishing liquid (slurry) in which cerium oxide is dispersed in water is supplied between the polishing tool 16 and the glass plate 3 to perform polishing.

FIG. 8 is a plan view showing the arrangement of adjacent polishing tools 16, 16,... In the continuous polishing apparatus shown in FIG. 7, and FIG. 9 shows the direction of force during polishing of the polishing tools 16, 16,. FIG. 10 is a plan view of one example shown in FIG.
FIG. 13 is a plan view of another state showing the direction of force during polishing of.
That is, as shown in FIGS. 8, 9 and 10, all the polishing tools 16 are rotated in the same direction by the eccentric shafts 9 and 9, but in the adjacent polishing tools 16 as shown in FIGS. The force direction 29 of 28 is directed to the tangential direction of the rotation trajectory 30 and the mass center of gravity 28 is 180
Rotate with different degrees of phase.

As another example of the conventional continuous polishing apparatus, for example, there is one shown in Japanese Patent Application Laid-Open No. 6-246623, and FIG. 11 schematically shows the continuous polishing apparatus disclosed in Japanese Patent Application Laid-Open No. 6-246623. It is a perspective view shown in FIG. Thus, in this example, the polishing tool 16 is connected to the polishing cart 4 in plan view.
Can be reciprocated in the direction of arrow C (reciprocating direction C) which is perpendicular to the transfer direction A of the transfer.

That is, on the upper surface of the base frame 1 whose upper surface is formed at substantially the same height as the upper surface of the rail 2, a rail 31 extending in the direction of arrow C in plan view at a predetermined interval in the transfer direction a. , 31.. Are laid, and a swing frame 32 is mounted on the rail 31 so as to be able to reciprocate in the direction of arrow C. The swing frame 32 has a lower frame 32a directly mounted on the rail 31 and an upper frame 32b disposed above the lower frame 32a. Is mounted on the lower frame 32a so as to be able to turn up and down via a bracket 33 fixedly located at the end opposite to the rail 2 and a horizontal pin 34 extending parallel to the transfer direction b. I have.

A support 35 is provided on one side of the base frame 1 away from the polishing carriage 4, and a support 35 is provided on the upper surface of the support 35 in the transfer direction A, although not shown. Bearings are arranged. A crankshaft 36 extending in the transfer direction A is rotatably supported by the bearing, and the crankshaft 36 can be driven to rotate by a crankshaft driving motor (not shown).

A horizontal pin 38 protrudes from a disk 37 fixed to both ends of the crankshaft 36 in the axial direction so as to be eccentric with respect to the rotation center of the crankshaft 36. One end of the lever 39 is externally fitted. The other end of the crank lever 39 extends toward the rail 2 in parallel to the direction of arrow C, and the tip of the other end is fitted on a horizontal pin 40 projecting from the side of the lower frame 32a so as to be parallel to the crankshaft 36. . A hydraulic jack 41 is provided upright on the upper surface of the base frame 1 so as to be located outside the rail 31, and the upper end of the hydraulic jack 41 is connected to the upper frame 32 of the swing frame 32.
b.

The wall surface 32 on the rail 2 side of the upper frame 32b
In b ′, a plurality of horizontal beams 6, 6... having the same structure as that shown in FIG.
Bevel gear boxes 42 are provided at predetermined intervals in the transfer direction A, and are mounted above the horizontal beams 6 so as to be mounted on the wall surface 32b 'of the upper frame 32b.

A horizontal shaft 46 extending in the transfer direction A and having a pulley 44 and a gear 45 externally fitted at both ends is rotatably fitted to a bearing 43 fixed on the upper surface of the bevel gear box 42, Upper surface 32 of upper frame 32b
An endless belt 49 is stretched between a pulley 48 and a pulley 44 which are fitted on the output shaft of a polishing tool rotation motor 47 disposed at b ″.

The bevel gear box 42 has a horizontal shaft 50 rotatable in parallel with the horizontal shaft 46.
The gear 51 externally fitted with the gear 45 meshes with the gear 45. Also,
A number of bevel gears 52, 52,... Corresponding to the respective horizontal beams 6, 6,. further,
7, two ordinates 7 are provided for each horizontal beam 6,
A bevel gear 53 is externally fitted and fixed to the upper end of the longitudinal axis 7 on the side close to the wall surface 32b 'of 7. Note that, in FIG. 11, the same reference numerals are given to components having the same functions as those shown in FIG.
Description is omitted.

In this embodiment, the polishing cart 4 is transferred in the transfer direction A by the polishing cart transfer motor. The driving of the polishing tool rotating motor 47 causes the pulley 4 to rotate.
8, the longitudinal axis 7 of the swing frame 32 on the side of the upper frame 32b rotates via the endless belt 49, the pulley 44, the horizontal shaft 46, the gears 45 and 51, the horizontal shaft 50, and the bevel gears 52 and 53. Upper frame 3 of swing frame 32 via pulley 24, belt 27, and pulley 25
The vertical axis 7 on the side away from 2b rotates, and all the polishing tools 16 are rotated in the horizontal direction by the eccentric shafts 9 and 9 in the same manner as in the case of FIG. Board 3
Is polished. At this time, the crankshaft 36 is driven, and the swing frame 3 is driven via the crank lever 39.
2 reciprocates along the rail 31 in the direction of arrow C, so that the polishing tool also reciprocates in the direction of arrow C. For this reason, in the case of the apparatus shown in FIG. 7, polishing unevenness occurs in the longitudinal direction of the rail 2 on the surface of the glass plate 3 due to polishing. In the case of this apparatus, however, the polishing unevenness is eliminated by the polishing tool. As a result, polishing unevenness does not occur on the surface of the glass plate 3.

Further, when replacing the polishing tool 16,
By operating the hydraulic jack 41, the upper frame 32b of the swing frame 32 is rotated upward with the horizontal pin 34 as a fulcrum, and the polishing tool 16 side is raised. Thereby, the polishing tool 16
Can be easily exchanged.

In any of the continuous polishing apparatuses shown in FIGS. 7 and 11, the polishing tool 16 is a polishing pad made of urethane foam. At the time of polishing, the polishing pad is impregnated with slurry to polish the glass plate 3. Therefore, the polishing tool 16 is clogged with the work, and as a result, the glass plate 3
Polishing efficiency decreases. For this reason, it has conventionally been necessary to periodically dress the tip of the polishing tool.

FIG. 12 is a plan view of a dressing cart used for dressing the tip of the polishing tool.

Thus, in order to dress the polishing tool with the continuous polishing apparatus shown in FIGS. 7 and 11, there is a gap between the polishing carts 4 before and after being transported in the transport direction A along the rail 2 of the polishing line. As shown in FIG. 12, a dressing cart 54 to be transferred in the transfer direction A together with the polishing cart 4 is arranged. A resin brush surface plate 55 using a resin such as nylon as a brush is disposed on the upper front portion of the dressing cart 54 in the transfer direction a, and a diamond chip is provided on the upper surface in the upper rear portion of the dressing cart 54 in the transfer direction a. The attached diamond chip surface plate 56 is provided.

In any of the continuous polishing apparatuses shown in FIGS. 7 and 11, when dressing is to be performed, as shown in FIG.
The polishing cart 4 and the dressing cart 54 are transferred in the transfer direction A as described above. For this reason, the glass plate 3 is continuously polished by the polishing tools 16, 16, and the resin brush surface plate 5 of the dressing carriage 54.
The dressing of the polishing tool 16 is performed by the brush body and the diamond tip of the diamond tip platen 56, which are implanted in 5, and the clogging is eliminated and the polishing efficiency is restored so as to recover the polishing efficiency.

[0025]

However, in the case of the continuous polishing apparatus shown in FIG. 7, as a result of the dressing, a streak is generated on the polishing tool 16, and the streak of the polishing tool 16 causes a rail on the surface of the glass plate 3. Polishing unevenness occurs in the direction of 2. In the case of the continuous polishing apparatus shown in FIG. 11, the polishing tool 16 is reciprocated in the direction perpendicular to the transfer direction a in plan view via the swing frame 32, so that the polishing tool 16 is clogged. Is sufficiently resolved, good regeneration efficiency can be obtained, and no streak occurs. However, in the continuous polishing apparatus shown in FIG. 11, the heavy swing frame 32 to which various equipments are attached must be reciprocated to the left and right, so that the structure of the apparatus is complicated and large power is required. Energy saving cannot be achieved.

The present invention has been made in view of the above-mentioned circumstances, and enables the polishing tool to be easily and reliably dressed so that the polishing tool can be regenerated satisfactorily. Or a simple method, in which a dressing surface such as a diamond chip surface plate and a resin brush surface plate is reciprocated in the direction perpendicular to the direction of transport of the dressing trolley so that it is not necessary to reciprocate heavy objects left and right. It is an object of the present invention to provide a polishing tool dressing apparatus in a continuous polishing apparatus capable of saving energy.

[0027]

SUMMARY OF THE INVENTION The present invention is directed to a polishing cart for transferring a plate-like body, and a polishing cart mounted above the polishing cart in a direction in which the polishing cart is transferred and rotated by a polishing cart while rotating in a plane. In a continuous polishing apparatus having a plurality of polishing tools so as to polish a plate-shaped body that has been, in a dressing carriage so as to be transported with the polishing carriage sandwiched between polishing carriages located in the front and rear in the transport direction, A polishing tool dressing apparatus in a continuous polishing apparatus provided with a dressing surface plate for dressing and regenerating the polishing tool, and a means for reciprocating the dressing surface plate in a direction perpendicular to a transport direction of a polishing cart at the time of dressing. provide.

The present invention provides a means for reciprocating a dressing platen in a direction orthogonal to the direction in which a polishing cart is transported during dressing.
A pinion that can be rotated by a rack provided on the base frame side, a cylindrical cam that can rotate together with the pinion and has a cam groove formed in a meandering curve toward the axial direction on the outer periphery, and the cylindrical cam The slider is configured to be able to reciprocate in a direction perpendicular to the transfer direction of the dressing cart through the driving means fitted into the cam groove by the rotation of the slider, and to be able to reciprocate in a horizontal direction with respect to the frame of the dressing cart. Continuous polishing provided with a lever engaged with a dressing surface plate, one end of which is engaged with a slider and the other end of which is reciprocally movable in a direction perpendicular to the moving direction of the dressing cart. An abrasive dressing device in an apparatus is provided.

According to the present invention, the lever length from the pivot point of the lever to the frame of the dressing truck to the lever engagement position with the dressing base plate is determined by the lever length from the pivot point of the lever to the frame of the dressing truck to the slider engagement position. Provided is a polishing tool dressing device in a continuous polishing device that is longer than the above.

In the present invention, the dressing carriage provided with the dressing platen is transported together with the polishing carriage when the plate-like body placed on the polishing carriage is polished by the polishing tool while the polishing carriage is being transported. Dressing of the polishing tool is performed while reciprocating the disc in a direction perpendicular to the transport direction of the polishing cart and the dressing cart, thereby eliminating clogging and regenerating.

In the present invention, the dressing table is reciprocated in a direction perpendicular to the direction of movement of the dressing cart, thereby easily and surely preventing harmful streaks causing uneven polishing. Is performed, the clogging is eliminated, and the polishing tool is regenerated.

In the present invention, since the reciprocating movement in the reciprocating direction, which is a direction orthogonal to the transfer direction, is a relatively lightweight dressing surface plate, the power for reciprocating the dressing surface plate is not sufficient. Less energy is required and energy can be saved.

[0033]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 show an embodiment of the present invention. 1 is a perspective view of a dressing cart used in the continuous polishing apparatus, FIG. 2 is a plan view of a part of a diamond chip platen of the dressing cart of FIG. 1, FIG. 3 is a view taken in the direction of arrows III-III in FIG. FIG. 5 is a view taken in the direction of arrows IV-IV in FIG. 2, FIG. 5 is a view taken in the direction of arrows VV in FIG. 2, and FIG. 6 is a plan view of a cam groove formed in a cylindrical cam used for the diamond chip surface plate of the dressing truck shown in FIG. FIG.

As shown in FIG. 1, the dressing cart 54 of this embodiment includes a resin brush platen 55 and a diamond chip platen 56, like the dressing cart 54 shown in FIG.

Two sets of diamond chip bases 56 are provided so that they can reciprocate in the direction of arrow C (reciprocating direction C) perpendicular to the direction of transport of the polishing cart 4 and the dressing cart 54 in plan view. I have. That is, on the upper surface of the bogie main body 61 forming the dressing bogie 54, at predetermined intervals toward the transfer direction A of the dressing bogie 54 in a plan view, extending in a direction parallel to the reciprocating direction C,
.. Are provided. The platen guide members 62 are provided with guided members 64 fixed to the lower surface of the platen frame 63 so as to be able to reciprocate in the reciprocating direction c. Are slidably mounted via a frame 63 for the surface plate.
A diamond chip surface plate 56 is mounted on the upper surface of the device.
A total of four guide members 62 for the platen are provided for a set of frame 63 for the platen, two front and rear, two left and right.

Between the two sets of platen frames 63, 63 arranged at intervals in the transfer direction B, a frame 65 positioned above the carriage body 61 is provided in the reciprocating direction C. It is installed so that it does not move in the direction
The two guide members 66, 66 parallel to the surface guide member 62 at predetermined intervals in the transport direction A
Are fixed so as to be located near the center of the bogie main body 61 in the width direction. A bracket 67 (see FIG. 4) is provided on the lower surface of the frame 65 at predetermined intervals in the reciprocating direction C.
, And a horizontal shaft 69 is rotatably fitted to the bearing 68.

A pinion 70 and a cylindrical cam 71 are externally fitted and fixed to the horizontal shaft 69.
And a rack 72 installed on the base frame 1 shown in FIG. 11 along the longitudinal direction of the rail 2. Also,
On the outer peripheral surface of the cylindrical cam 71, an endless cam groove 71a is provided along the outer periphery of the cylindrical cam 71 as shown in detail in FIG. The cam groove 71a has an amplitude L1 toward the axial direction of the horizontal shaft 69 with respect to the center of the cylindrical cam 71 in the width direction.
(See FIG. 4).

On the lower surface of the front and rear portions of the frame 65 with respect to the dressing carriage 54 transfer direction A, vertical pins 73, 73 are arranged so as to be close to the platen frame 63 and to be located near the center of the carriage main body 61 in the width direction. Each of the vertical pins 73 is pivotally supported by an enlargement lever 74 that can reciprocate in the horizontal direction with the vertical pin 73 as a fulcrum. A roller 76 is rotatably supported at the end of the magnifying lever 74 on the side of the platen frame 63 via a vertical pin 75, and the roller 76 is formed on the lower surface of the platen frame 63 of the magnifying lever 74. It is fitted into the elongated hole 63a provided.

A slider 78 is attached to each of the guide members 66, 66 via guided members 77, 77, respectively.
The roller 80 is mounted so as to be able to reciprocate along the roller 78 and rotatably supported on the slider 78 side of the magnifying lever 74 via a vertical pin 79.
It is fitted in a notch 78a formed on the side. A cam roller 82 is rotatably supported via a horizontal pin 81 at an end of the slider 78 on the side of the cylindrical cam 71, and the cam roller 82 is fitted into a cam groove 71 a of the cylindrical cam 71.

If the lever length from the rotation center of the roller 80 of the slider 78 to the center of the vertical pin 73 is S1 and the lever length from the vertical pin 73 to the roller 76 is S2 in the magnifying lever 74, the slider Since 78 reciprocates in the reciprocating direction C with the amplitude L1 via the cam roller 82, the platen frame 63 of the magnifying lever 74 moves in the reciprocating direction C with the enlarged amplitude L2 as shown in [Equation 1]. It can move back and forth. The reason why the enlargement lever 74 is provided is that the amplitude L1 of the cam groove 71a formed in the cylindrical cam 71 cannot provide a sufficient reciprocating stroke with respect to the platen frame 63.

[0042]

L2 = (S2 / S1) × L1

On the lower surface of the carriage body 61, a rack 83 extending in the transfer direction A is fixedly mounted. On the rack 83, an output of a polishing carriage transfer motor installed between the rails 2 and 2 of the base frame 1 is provided. The pinion attached to the shaft can be engaged.

Next, the operation of the illustrated example will be described.

A polishing tool 16 made of urethane foam (FIGS. 7 and 11)
In the case where the clogging is eliminated and the regeneration is performed so that the polishing efficiency is recovered by performing the dressing, the dressing vehicle 54 is disposed between the predetermined polishing vehicles 4 and 4, and the polishing vehicle transfer motor is driven. While transporting the polishing cart 4 and the dressing cart 54 along the rail 2 in the transfer direction A,
The polishing tool rotating motor is driven, and the glass plate 3 is polished by the polishing tool 16 in contact with the surface of the glass plate 3 in the same manner as in the conventional apparatus shown in FIGS. When polishing the glass plate 3, the dressing cart 54 is also transferred along the rail 2 together with the polishing cart 4. At this time, the dressing cart 54 is attached to the top of the brush body of the resin brush platen 55 mounted on the upper surface and the diamond chip set. The diamond chip embedding surface on the upper surface of the board 56 moves while being in contact with the polishing tool 16.

When the dressing cart 54 is transferred, the pinion 70 is rotated by the rack 72, and the horizontal shaft 69 and the cylindrical cam 71 are rotated by the rotation of the pinion 70. Therefore, the cam roller 82 fitted in the cam groove 71a of the cylindrical cam 71 is
To reciprocate with amplitude L1 in the reciprocating direction c,
As a result, the slider 78 reciprocates along the guide member 66 in the reciprocating direction C with the amplitude L1. When the slider 78 reciprocates in the reciprocating direction C with the amplitude L1, the amplitude L1 is enlarged to the amplitude L2 by the enlargement lever 74. Therefore, the base plate frame 63 and, consequently, the diamond chip base plate 56 are viewed from above. Reciprocates at an amplitude L2 in a reciprocating direction C orthogonal to the transfer direction A of the polishing cart 4 and the dressing cart 54.

As described above, the dressing cart 54 is transferred in the transfer direction A with the brush body tip of the resin brush base 55 and the diamond chip embedding surface on the diamond chip base 56 being in contact with the polishing tool. As the diamond chip surface plate 56 is reciprocated in the reciprocating direction c,
Dressing of the polishing tool 16 is performed easily and reliably. For this reason, the clogging of the polishing tool 16 is eliminated by the brush body of the resin brush surface plate 55, and the diamond chip surface plate 56
The diamond chip embedding surface on the upper surface grinds the polishing tool 16 to regenerate the polishing tool 16, thereby recovering the polishing efficiency.
In particular, the diamond chip surface plate 56 is a dressing cart 54
In the case where the frame 63 for the platen only moves straight together with the dressing cart 54 as in the conventional case, since the platen frame 63 also reciprocates in the reciprocating direction c orthogonal to the transfer direction a while being transferred in the transfer direction a by the As compared with the above, the recovery and regeneration of the polishing efficiency by eliminating the clogging of the polishing tool can be favorably performed without generating harmful streaks which cause polishing unevenness.

In order to reciprocate in the reciprocating direction C, the diamond chip surface plate 5 having a simple structure and a relatively light weight is used.
6, the device structure can be simplified.
In addition, less power is required for reciprocating the diamond chip surface plate 56, and energy can be saved.

The polishing tool dressing device in the continuous polishing device of the present invention is not limited to the above-described illustrated example, and various modifications can be made without departing from the scope of the present invention. is there. For example, in the illustrated example described above, the case where the diamond chip surface plate is reciprocated in the direction perpendicular to the transport direction of the polishing cart has been described, but the resin brush surface plate is reciprocated in the direction perpendicular to the transport direction of the grinder. It is also possible to implement this.

The resin used for the resin brush platen is not limited to nylon, and various resins can be used. The material to be polished is not limited to a glass plate, but can be applied to various plate-like bodies. .

[0051]

As described above, the first aspect of the present invention is as described above.
According to the polishing tool dressing apparatus in the continuous polishing apparatus described in any one of the first to third aspects, various excellent effects as described below can be obtained.

I) The dressing cart is transferred while the upper surface of the dressing plate is in contact with the polishing tool,
The dressing table is reciprocated in the direction perpendicular to the direction of transport of the dressing trolley, making it possible to perform dressing easily and reliably, and the polishing tool generates harmful streaks that cause uneven polishing. Instead, the clogging is eliminated and the polishing efficiency is restored so that the polishing efficiency is restored.

II) Reciprocating in the reciprocating direction, which is a direction orthogonal to the transport direction, is a relatively light-weight dressing platen. Therefore, the configuration of the apparatus is simplified and the dressing platen is reciprocated. Power is small, and energy can be saved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a dressing cart used in an example of an embodiment of a polishing tool dressing apparatus in a continuous polishing apparatus according to the present invention.

FIG. 2 is a plan view of the dressing cart shown in FIG.

FIG. 3 is a view in the direction of arrows III-III in FIG. 2;

FIG. 4 is a view taken in the direction of arrows IV-IV in FIG. 2;

FIG. 5 is a view taken in the direction of arrows VV in FIG. 2;

FIG. 6 is a plan view of a cam groove of a cylindrical cam installed on a dressing cart.

FIG. 7 is a perspective view of an example of a conventional continuous polishing apparatus.

8 is a plan view showing the arrangement of adjacent polishing tools in the continuous polishing apparatus shown in FIG.

9 is a plan view showing an example of a direction of a force when the polishing tool shown in FIG. 8 is polished.

FIG. 10 is a plan view of another example showing the direction of force during polishing of the polishing tool shown in FIG. 8;

FIG. 11 is a perspective view of another example of a conventional continuous polishing apparatus.

12 is a plan view of a dressing cart used for dressing the tip of the polishing tool in the continuous polishing apparatus shown in FIGS.

[Explanation of symbols]

 Reference Signs List 1 base frame 3 glass plate (plate-like body) 4 polishing cart 16 polishing tool 54 dressing cart 55 resin brush platen 56 diamond chip platen 65 frame 70 pinion 71 cylindrical cam 71a cam groove 72 rack 74 enlargement lever (lever) 78 slider 82 Cam roller (drive means) S1 Lever length S2 Lever length A Transfer direction C Reciprocating direction (direction perpendicular to the transfer direction)

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Fukuya Takikawa 2-1-2, Marunouchi, Chiyoda-ku, Tokyo Asahi Glass Co., Ltd. F-term (reference) 3C043 BA04 BA07 BA18 3C047 AA31

Claims (3)

[Claims] 1. A polishing cart for transferring a plate-like body, and a polishing cart mounted above the polishing cart in a direction in which the polishing cart is transferred, and polishing the plate-like member being transferred by the polishing cart while rotating in a plane direction. In a continuous polishing apparatus provided with a plurality of polishing tools, the polishing tools are dressed and regenerated on a dressing cart that is transported together with the polishing cart while being sandwiched between polishing carts located in front and rear in the transfer direction. And a means for reciprocating the dressing table in a direction perpendicular to the direction of transport of the polishing cart during dressing. 2. A means for reciprocating a dressing platen in a direction perpendicular to the direction of movement of a polishing cart during dressing, wherein the pinion is configured to be rotatable by a rack provided on a base frame side by the transfer of the dressing cart. The dressing cart through a cylindrical cam that can rotate integrally with the pinion and has a cam groove formed in a meandering curve in the outer peripheral direction in the axial direction, and driving means fitted into the cam groove by rotation of the cylindrical cam. A slider capable of reciprocating in a direction perpendicular to the transfer direction of the carriage, a pivotally supported reciprocating pivot in the horizontal direction on the frame of the dressing cart, and one end engaged with the slider. The end can be reciprocated in a direction perpendicular to the transfer direction of the dressing cart,
The polishing tool dressing device in the continuous polishing device according to claim 1, further comprising a lever engaged with the dressing surface plate. 3. The lever length from the pivot point of the lever to the frame of the dressing cart to the lever engagement position with the dressing platen is more than the lever length from the pivot point of the lever to the frame of the dressing cart to the slider engagement position. The polishing tool dressing device in the continuous polishing device according to claim 2, wherein the length is longer.