JP5403791B2 - Conveyor for surface treatment equipment - Google Patents

Description

The present invention relates to a transport conveyor of a surface treatment apparatus for removing burrs generated during processing of a molded product, surface polishing, or removing cut dross of a laser processed product.

  A film or foil is widely used on the surface of a product (molded product) such as a synthetic resin for the purpose of improving decoration and functionality. There are various methods for forming a coating on such a molded product, such as a method of simultaneously molding a resin product and contacting the coating, such as transfer molding and in-mold molding. In many cases, burrs are generated on the surface edge of the product. Moreover, not only a resin molded product but a burr | flash generate | occur | produces in an edge part also in the process of processing a sheet metal processed material, for example. If burrs remain, there is a risk of injury due to burrs in the product (molded product), and the appearance will also deteriorate, so it must be removed.

  On the other hand, in the case of laser processed products, there has conventionally been a problem that cutting dross occurs on the front and back surfaces. However, in recent years, laser processing machines have advanced, and dross generation during cutting has hardly been observed. However, since the cut portion has no surface on both the front and back surfaces and the edges are standing, it is necessary to perform dross removal and rounding of the cut surface on both the front and back surfaces. The deburring described above may also require processing on both the front and back sides. Patent Document 1 below discloses a deburring method and apparatus for performing such surface treatment.

JP 2003-25200 A

  However, when processing a work in which burrs are formed on both sides by the technique described in Patent Document 1 described above, two deburring devices are arranged in series, and a belt conveyor of the first deburring device. The work reversing device is provided on the tip side of the part, and after deburring the surface of the work with the first deburring device, the work is reversed upside down and the same operation is performed with the second deburring device. To deburr the back side of the workpiece. For this reason, in order to perform both front and back processing, there is an inconvenience that the overall apparatus configuration needs to be complicated and large.

  Further, as a technique other than the above-mentioned Patent Document 1, there is a technique for performing surface treatment with a brush while holding a work on a transport conveyor using suction (or suction), but suction force is insufficient depending on the thickness and shape of the work. However, removal of large burrs and dross may be insufficient. Furthermore, in the conveyor using the suction device, due to long-term use, the edge of the suction hole provided in the conveyor belt is chamfered or the suction hole itself becomes larger, so the suction force is reduced, There arises an inconvenience that deburring cannot be performed satisfactorily. Such a problem can be dealt with by replacing the belt, but it takes time to replace the belt and the work efficiency is reduced.In addition, the portion where the brush does not hit is less likely to scrape the suction hole, so replacing the whole There is also the inconvenience of wasted waste.

The present invention, attention is paid to a point as described above, in the conveyor of the surface treatment apparatus using a suction force, is possible to increase the fixing force of the processing target.

The transport conveyor of the present invention is a transport conveyor of a surface treatment apparatus provided with a rotating brush that contacts a surface of a processing target and performs a desired processing, and has a plurality of suction holes, and transports the processing target. A conveyor belt that passes in the direction and passes through the rotating brush, a suction means that sucks the processing object through the suction hole and fixes it to the conveyor belt, and is provided rotatably at the inlet and outlet of the rotating brush. A fixed auxiliary roller that pushes the object to be processed toward the conveyor belt, and a rotation drive mechanism that rotates the fixed auxiliary roller, and the rotation drive mechanism is rotatably supported below the conveyor belt. A sprocket that is rotated by driving means and is rotatably supported below the conveyor belt, and is engaged with the sprocket. It includes a Ugiya, and bridged the chain to the fixing auxiliary roller and said gear, and the fixing auxiliary roller, characterized in that as the center of rotation of the gear is rotatable within a predetermined range.

One of the main forms is characterized in that the fixed auxiliary roller rotates in a direction that does not disturb the conveyance of the processing target. In another embodiment, the fixing auxiliary roller can be moved up and down with respect to the conveyor belt according to the thickness of the processing target .

Other forms a further is characterized in that a tensioning mechanism for preventing slack of the chain of the rotation driving mechanism.

In still another embodiment, the conveyor belt is formed with a belt body in which the plurality of suction holes are formed, and a plurality of suction holes having the same size or less as the suction holes at positions corresponding to the suction holes of the belt body. In addition, an adhesive layer is provided on one main surface, and a belt plate that can be bonded to the whole or a part of the belt main body is included. Alternatively, the conveyor belt is formed by dividing the plurality of suction holes into a plurality of regions, and suction holes included in at least one of the plurality of regions are suction holes included in other regions. Compared to the above, at least one of the size of the hole or the interval between adjacent suction holes in the same region is different. The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

According to the present invention, a suction hole for fixing the processing target by suction force is provided in the conveyor belt for sending the processing target to the rotating brush, and the processing target is pushed toward the conveyor belt. Since the auxiliary fixing rollers are provided at the inlet and outlet portions of the rotating brush, it is possible to compensate for the lack of fixing force due to suction.

  Furthermore, according to the present invention, since the belt plate having the suction holes of the same arrangement and the same size as or smaller than the suction holes can be bonded to the conveyor belt body having the suction holes, the suction holes of the conveyor belt body can be chamfered. Even if the diameter increases, the repair can be performed without replacing the conveyor belt body. According to another conveyor belt of the present invention, a plurality of suction holes provided in the conveyor belt main body are divided into a plurality of regions, and suction holes included in at least one region are included in other regions. Since at least one of the size of the hole or the interval between adjacent suction holes in the same region is different from that of the suction hole, it is possible to suck and hold a processing object having a different size.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Example 1 of this invention, (A) is a figure which shows the whole structure of a surface treatment apparatus, (B) is a side view which shows an example of a rotating brush, (C) is position adjustment of a flip-up prevention block It is a side view which shows the mode. It is a figure which shows Example 2 of this invention, (A) is a figure which shows the whole structure of a conveyance conveyor, FIG.2 (B) is a figure which shows an example of the drive mechanism of a fixed auxiliary roller. It is a figure which shows Example 3 of this invention, (A) is a perspective view which shows a conveyor belt, (B-1)-(B-3) is a figure which shows an effect | action, (C-1) and (C-2) ) Is a diagram showing a modification.

  Hereinafter, the best mode for carrying out the present invention will be described in detail based on examples.

  First, Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 (A) is a diagram showing the overall configuration of the surface treatment apparatus of this embodiment, FIG. 1 (B) is a side view showing an example of a rotating brush, and FIG. 1 (C) is a position adjustment of the splash-up prevention block. It is a side view which shows a mode. The surface treatment apparatus of this embodiment performs various surface treatments such as deburring of products (molded products), removal of dross on the front and back of laser processed products, and rounding of cut surfaces. As shown in FIG. 1A, the surface treatment apparatus 10 includes a plurality of lower drive rollers 12, a plurality of upper drive rollers 14, a pair of upper rotary brushes 16A and 16B, a pair of lower rotary brushes 22A and 22B, and a plurality of lower drive rollers 14. A flip-up prevention block 30 is used. Hereinafter, the respective units will be described in order.

  First, the upper rotary brushes 16A and 16B are intended to perform a desired surface treatment by contacting the surface of the workpiece W (processing target), and the lower rotary brushes 22A and 22B are formed on the rear surface of the workpiece W on the desired surface. Processing is performed. The lower rotary brushes 22A and 22B are arranged below the upper rotary brushes 16A and 16B so as not to overlap. In this embodiment, the upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B are arranged alternately along the conveying direction of the workpiece W (the direction of the arrow F1). Specifically, the upper rotary brush 16A, the lower rotary brush 22A, the upper rotary brush 16B, and the lower rotary brush 22B are arranged in this order from the front side in the conveyance direction of the workpiece W (left side in FIG. 1A). . Further, the upper rotating brush 16A rotates in the direction of arrow F2a, and the other upper rotating brush 16B rotates in the reverse direction, such as rotating in the direction of arrow F2b. Similarly, the lower rotary brush 22A rotates in the arrow F2b direction, and the other lower rotary brush 22B rotates in the reverse arrow F2a direction.

  For example, as shown in FIG. 1B, the upper rotating brush 16A has a number of substantially ring-like shapes on the surface of a substantially cylindrical roller 18 that is rotationally driven by a driving means (not shown). A brush 20 is provided, and the roller 18 is rotatably supported so as to be substantially orthogonal to the transport direction. The other rotating brushes 16B, 22A, 22B have the same configuration. In the illustrated example, the brush 20 is inclined with respect to a surface substantially orthogonal to the axis of the roller 18. The inclination α of the brush 20 is, for example, 7 degrees for the upper rotating brush 16A and the lower rotating brush 22A on the entrance side of the work W, and 20 degrees for the upper rotating brush 16B and the lower rotating brush 22B on the exit side of the work W. By disposing the inclined brush 20 intermittently, the angled brush 20 rotates obliquely, so that the workpiece W includes irregularities and rising portions without providing the brush 20 on the entire surface of the roller 18. Even if it is a case, it can surface-treat uniformly. The upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B as described above can be lifted and lowered by a lifting device (not shown).

  Next, the plurality of lower drive rollers 12 are disposed below and above the upper rotary brushes 16A and 16B so as to sandwich the lower rotary brushes 22A and 22B. The lower drive roller 12 conveys the workpiece W by rotating an axis substantially orthogonal to the conveyance direction (arrow F1 direction) of the workpiece W in the direction of arrow F6a. On the other hand, the plurality of upper drive rollers 14 are arranged on the front and rear sides above the lower rotary brushes 22A and 22B so as to sandwich the upper rotary brushes 16A and 16B. An axis that is substantially perpendicular to the transport direction rotates in the direction opposite to the lower drive roller 12 (in the direction of arrow F6b), thereby transporting the workpiece W with the lower drive roller 12 therebetween.

  Among the plurality of lower drive rollers 12 and upper drive rollers 14, the inlet portions (positions PA to PD in FIG. 1A) and outlet portions of the upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B, respectively. The rollers located at (positions PB to PE) are opposed to each other in a direction substantially orthogonal to the conveyance surface, and pull the workpiece W in the direction of arrow F6a and drive it by pushing it in the direction of arrow F6b. The workpiece W sandwiched between the lower drive roller 12 and the upper drive roller 14 advances in the traveling direction (arrow F1 direction) with these driving forces. The sandwiching load at this time is a sandwiching load (driving load) (for example, 1500 to 2500 g) that is not defeated by the rotational force of the rotating brush (rear rotating brush) that has passed. The lower drive roller 12 and the upper drive roller 14 as described above are rotationally driven by the driving means (not shown) so as to have the above-described sandwiching load.

  Next, the flip-up prevention block 30 will be described. The splash prevention block 30 is provided between the upper rotary brushes 16A and 16B and the upper drive roller 14 at the inlet and outlet, and the lower rotary brushes 22A and 22B and the lower drive roller at the inlet and outlet. 12 is provided. The flip-up prevention block 30 has a function of a guide plate for preventing the workpiece W from jumping up at the bottom surface 32 and smoothly guiding the workpiece W to the upper and lower rotary brushes. ), The bottom surface 32 is disposed in contact with or close to the surface of the workpiece W, and the inclined surface 34 faces the rotating brush side.

  Such a splash-up prevention block 30 can be moved along the conveyance direction of the workpiece W and the opposite direction (if necessary, a direction orthogonal to the conveyance direction) by a driving means (not shown), and the upper rotating brush Position adjustment is possible according to the size of 16A, 16B and lower rotary brushes 22A, 22B. For example, as shown in FIG. 1C, when the brush 20 is worn and shortened and the entire upper rotating brush 16A becomes small, the tip of the worn brush 20 is not shown so as to abut against the workpiece W. The upper rotary brush 16A is lowered in the direction of arrow F3 by the lifting mechanism, and the flip-up prevention blocks 30 on both sides are moved in the directions of arrows F4 and F5, and the position is adjusted so that the above-described flip-up prevention effect and guiding effect can be obtained. To do.

  Next, the operation of this embodiment will be described. First, the upper rotating brush 16A and the lower rotating brush 22B are rotated in the direction of the arrow F2a, and the other upper rotating brush 16B and the lower rotating brush 22A are rotated in the direction of the arrow F2b. When the lower drive roller 12 and the upper drive roller 14 are energized and rotated in the directions of the arrows F6a and F6b, the workpiece W is sandwiched between the lower drive roller 12 and the upper drive roller 14 and travels by the driving force ( Proceed in the direction of arrow F1). As described above, the pinching load at that time is a pinching load (driving load) that is not defeated by the rotational force of the rotating brush that has passed. Then, the upper rotating brush 16A, the lower rotating brush 22A, the upper rotating brush 16B, and the lower rotating brush 22B are sequentially passed through, and deburring, dross removal, polishing, R-approaching, and the like are simultaneously performed.

  Chip dust generated during the above processing is collected at the abutting portion because the pair of upper rotating brushes 16A and 16B and the lower rotating brushes 22A and 22B rotate in opposite directions. Therefore, scattering to the surroundings can be minimized. Further, when the brush 20 is worn and the upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B become small due to long-term use, the tip of the worn brush 20 comes into contact with the workpiece W. In addition, the rotating brush is lowered as appropriate, and the splash-preventing blocks 30 before and after these rotating brushes are moved so as to approach the rotating brush.

Thus, according to the first embodiment, there are the following effects.
(1) Bounce-up prevention blocks 30 are provided between the upper rotating brushes 16A and 16B and the upper and lower upper driving rollers 14 and between the lower rotating brushes 22A and 22B and the lower and lower driving rollers 12 and Since the W is prevented from jumping up and the work W is guided to the rotating brushes, the work W can be surely sent to the rotating brush and the front and back processing can be simultaneously performed.
(2) Since the splash-up prevention block 30 can be moved in the conveyance direction of the workpiece W and in the opposite direction, even when the upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B are worn down, It can be used by moving it closer to the rotating brush.

(3) The upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B are provided at a predetermined interval on the surface of the rotatable roller 18 and inclined with respect to a plane substantially orthogonal to the axial direction of the roller 18. Therefore, the surface of the workpiece W can be uniformly processed without providing the brush 20 over the entire surface.
(4) The pair of upper rotary brushes 16A and 16B are arranged substantially in parallel and rotated reversely to each other, and the pair of lower rotary brushes 22A and 22B are arranged substantially in parallel and rotated reversely to each other. The effect is obtained, and it becomes easy to collect chips and dust.

  Next, Embodiment 2 of the present invention will be described with reference to FIG. The present embodiment is a type of conveyance conveyor that fixes a processing target by suction (or adsorption), and is used as a conveyance device of a surface treatment apparatus for performing deburring, dross removal, and the like. FIG. 2A is a diagram showing the overall configuration of the conveyor according to the present embodiment, and FIG. 2B is a diagram showing an example of a driving mechanism for a fixed auxiliary roller. As shown in FIG. 2 (A), the conveyor 100 is disposed below a pair of rotating brushes 112A and 112B disposed substantially in parallel at a predetermined interval, and the workpiece W is placed on these rotating brushes 112A and 112B. It is for passing through. The rotating brushes 112A and 112B are provided with a brush 116 on the surface of a rotatable roller (or shaft) 114, and the brush 116 is substantially the same as the shaft of the roller 114 as in the first embodiment. It may be inclined with respect to an orthogonal plane, or may use other known various types of rotating brushes. Also in the present embodiment, the pair of rotating brushes 112A and 112B rotate in the reverse direction (arrow F8a, F8b direction) as in the first embodiment.

  The conveyor 100 includes a conveyor belt 106 supported by a main body 102, a suction device 110, a plurality of fixed auxiliary rollers 120, and a driving mechanism thereof. The conveyor belt 106 is driven in a fixed direction by a drive chain 104 provided in the main body 102 and conveys the workpiece W in a direction indicated by an arrow F7 in FIG. 108 is provided. The suction device 110 is provided in the main body 102 below the conveyor belt 106 (not shown in FIG. 2B), and sucks the workpiece W through the suction hole 108 and fixes it to the conveyor belt 106. To do. Next, the fixing auxiliary roller 120 is rotatably provided above the conveyor belt 106, and increases the fixing force of the work W with respect to the conveyor belt 106 by pushing the work W toward the conveyor belt 106. Is. The fixing auxiliary roller 120 is provided at the entrance and exit of each of the pair of rotating brushes 112A and 112B.

  On the other hand, below the conveyor belt 106, as shown in FIG. 2B, there are provided a gear 122 and a sprocket 126 which are rotatably supported, and the gear 122 and the fixed auxiliary roller 120 have a chain. 124 is bridged. Therefore, when the shaft 126a of the sprocket 126 is rotated in the direction of arrow F8b by a drive motor (not shown), the gear 122 that meshes with the sprocket 126 rotates in the direction of arrow F9. Then, the rotation is transmitted to the fixed auxiliary roller 120 via the chain 124, and the fixed auxiliary roller 120 rotates in the direction of the arrow F9, so that it can be pushed toward the conveyor belt 106 without disturbing the conveyance of the workpiece W. . For this reason, even when the suction force by the suction device 110 is insufficient, the fixing force of the workpiece W can be increased, and deburring of a workpiece having a large burr and removal of a dross of a workpiece having a large dross are possible. The effect of becoming is obtained.

  Furthermore, in this embodiment, the fixed auxiliary roller 120 is configured to be rotatable within a certain range around the gear 122 as indicated by a dotted line in FIG. The pressing height can be adjusted (arrow F10). For example, the workpiece W1 having a thickness is pressed at a position indicated by a solid line in the figure, and the workpiece W2 having a small thickness is pressed at a position indicated by a dotted line. As described above, when there are workpieces having different thicknesses, the fixing auxiliary roller 120 freely moves up and down along the thickness of the workpiece to press the workpiece, and applies a driving force to the workpiece W to be inserted into the rotating brushes 112A and 112B. To do. Or you may make it have a load which prevails over the rotational force of rotary brush 112A and 112B synthetically. In the illustrated example, the fixed auxiliary roller 120 is moved up and down by turning about the gear 122, but this is also an example, and the direction indicated by the solid line in FIG. It is good also as a structure which moves only up and down, without moving to. In this case, a tension mechanism (not shown) or the like is provided to keep the chain 124 constant so that the chain 124 does not slack.

Thus, according to Example 2, there are the following effects.
(1) Since the fixing auxiliary roller 120 is provided, even when the fixing force by the suction device 110 is insufficient, by pressing the workpiece W toward the conveyor belt 106, the processing by the rotating brushes 112A and 112B is performed. Misalignment does not occur.
(2) Since the fixing auxiliary roller 120 can be moved up and down according to the thickness of the workpiece W, a sufficient fixing force can be obtained even when workpieces W having different thicknesses are included, and can be inserted into the rotating brushes 112A and 112B. It can be done smoothly.

  Next, Embodiment 3 of the present invention will be described with reference to FIG. The present embodiment relates to a conveyor belt applied to a type of conveyor that fixes a processing target by suction as in the second embodiment described above. 3A is a perspective view showing the conveyor belt of this embodiment, FIGS. 3B-1 to 3B-3 are views showing the operation of this embodiment, FIGS. 3C-1 and 3C. -2) is a diagram showing a modification. As shown in FIG. 3 (A), the conveyor belt 200 of this embodiment has a large number of suction holes 204 communicating with a suction device (not shown) on almost the entire surface, and sends the workpiece W in a predetermined transport direction. The belt main body 202 allows a rotating brush (not shown) to pass through, and a plurality of belt plates 210 that can be bonded to the belt main body 202. The belt plate 210 includes a plurality of suction holes 212 having the same dimensions and the same arrangement as the suction holes 204 of the belt main body 202, and the adhesive layer 214 (such as a double-sided tape) provided on one main surface, The belt main body 202 can be bonded.

  As shown in FIG. 3 (B-1), the belt main body 202 sucks and fixes the workpiece W through a suction hole 204 communicated with a suction device (not shown). As shown in (B-2), a chamfer 206 is formed in the upper portion of the suction hole 204, or the diameter D1 of the suction hole 204 is expanded to a diameter D2 at a position indicated by a dotted line in FIG. As a result, the suction force is reduced. Therefore, in this embodiment, a belt plate 210 having a number of suction holes 212 having the same size and the same arrangement as the suction holes 204 of the belt main body 202 is bonded to the belt main body 204 as necessary, so that FIG. As shown in (B-3), the suction hole 204 is repaired to restore the fixing force of the workpiece W. With the configuration as described above, it is possible to save the trouble of replacing the entire belt main body 202.

  Next, with reference to FIGS. 3C-1 and 3C-2, a modified example of the present embodiment will be described. A number of suction holes 252 are formed at a predetermined interval P1 in the belt main body 250 shown in FIG. On the other hand, the belt plate 260 is formed with a suction hole 262 having the same arrangement as the suction hole 252 and a small size. When the belt plate 260 is bonded to a position indicated by a dotted line in FIG. 3C-1 using a double-sided tape or the like (not shown), the suction hole 252 of the belt main body 250 indicated by the dotted line in FIG. The belt plate 260 is closed by a plate around the suction hole 262 shown by a solid line. Thereby, the interval P3 between the suction holes 262 in the central portion of the belt body 250 is smaller than the interval P1 between the suction holes 252.

  Similarly, many suction holes 264 having a diameter larger than that of the suction hole 262 and smaller than that of the suction hole 252 are formed on both sides (vertical direction in FIG. 3) of the portion where the suction hole 262 is formed. When the belt plate provided is pasted, as shown in FIG. 3C-2, a conveyor having suction holes 252 arranged at intervals P1, suction holes 264 arranged at intervals P2, and suction holes 262 arranged at intervals P3. A belt is obtained. As described above, when the suction holes 252 of the belt main body 250 are repaired, if the diameters of the suction holes 262 and 264 provided in the belt plate 260 are changed, the suction force increases when the holes are small. Can cope with workpieces W of different sizes.

In addition, this invention is not limited to the Example mentioned above, A various change can be added in the range which does not deviate from the summary of this invention. For example, the following are also included.
(1) The apparatus configuration shown in the above embodiment is an example, and the design may be changed as appropriate so as to achieve the same effect. For example, in the first embodiment, a pair of rotating brushes are arranged above and below the workpiece W. However, the rotation brushes may be appropriately increased or decreased as necessary, such as one axis or three axes. In the first embodiment, a dust collecting device may be provided between the upper rotating brushes 16A and 16B or between the lower rotating brushes 22A and 22B to enhance the dust collecting effect. The same applies to the second embodiment.

(2) Various known mechanisms may be used as the moving mechanism of the flip-up preventing block 30 and the lifting mechanism of the upper rotating brush 16A according to the first embodiment. The same applies to the drive mechanisms of the lower drive roller 12, the upper drive roller 14, the upper rotary brushes 16A and 16B, and the lower rotary brushes 22A and 22B. Further, the driving mechanism of the conveyor belt 106 and the raising / lowering mechanism of the auxiliary fixing roller 120 shown in the second embodiment are also examples, and may be appropriately changed so as to achieve the same effect.
(3) The pinching load between the lower drive roller 12 and the upper drive roller 14 in the first embodiment is also an example, and may be appropriately changed so as to achieve the same effect. Similarly, the rotation direction, movement direction, and conveyance direction of each part in the first and second embodiments can be appropriately changed as necessary. For example, the interval between the brush and the roller is changed according to the thickness of the workpiece.

(4) The structure of the upper rotary brushes 16A and 16B and the lower rotary brushes 22A and 22B shown in the first embodiment is also an example, and the inclination angle α of the brush 20 may be changed as appropriate. Further, the brush 20 may be provided in a direction substantially orthogonal to the axial direction of the roller 18 without being inclined. Further, although the pair of rotating brushes are rotated in the reverse direction both above and below, this is also an example, and does not prevent the rotating in the same direction as necessary. The same applies to the second embodiment.
(5) The said Example 3 may be used in combination with the said Example 2, and may be applied to other well-known various suction type conveyance conveyors.
(6) The surface treatment apparatus 10 according to the first embodiment can be applied to various other known surface treatments such as polishing and rounding in addition to the deburring and dross removal described above.

  (7) In the modified example of the third embodiment, the belt plate 260 having the suction holes 262 having a diameter and an arrangement interval different from those of the suction holes 252 is bonded to the suction holes 252 of the belt main body 250. This is also an example. From the beginning, as shown in FIG. 3 (C-2), as shown in FIG. 3C-2, suction holes 252 having different diameters and intervals (P1, P2, P3) between adjacent suction holes are different. 262 and 264 may be formed on the belt main body 250. That is, a region where the suction holes 252 with the interval P2 between the adjacent suction holes are formed, a region where the suction holes 264 with the interval between the adjacent suction holes P2 are formed, and a region between the adjacent suction holes A region (P1 ≠ P2 ≠ P3) where the suction holes 262 with the interval P3 are formed may be formed in the belt main body 250. In this case as well, it is possible to deal with workpieces W having different sizes as in the third embodiment. Further, in the illustrated example, the suction holes 252, 262, 264 are not only different in distance from the adjacent suction holes, but also the sizes of the holes are different for each region. Of course, this is only an example, and only one of the arrangement interval and the hole size may be different from the other regions. In the case of repairing such a conveyor belt, the same belt plate as in the third embodiment described above can be used.

According to the present invention, the conveyor belt for sending the processing target to the rotating brush is provided with a suction hole for fixing the processing target by suction force, and the fixing auxiliary roller that pushes the processing target toward the conveyor belt Is provided at the inlet and outlet portions of the rotating brush to compensate for the lack of fixing force due to the suction force, so that it can be applied to the use of a conveyor using the suction force.

  Furthermore, according to the present invention, a conveyor belt main body in which chamfering or diameter expansion occurs by adhering a belt plate having suction holes of the same arrangement and the same size or smaller as the suction holes to a conveyor belt main body having suction holes. Repair the suction hole. Alternatively, the suction holes included in one area of the conveyor belt main body are different from the suction holes included in the other areas in at least one of the size of the holes or the distance between adjacent suction holes in the same area. Since it forms in this way and respond | corresponds to the process target from which a magnitude | size differs, it can apply to the use of a conveyor belt.

10: Surface treatment device 12: Lower driving roller 14: Upper driving roller 16A, 16B: Upper rotating brush 18: Roller 20: Brush 22A, 22B: Lower rotating brush 30: Bounce-up prevention block 32: Bottom surface 34: Inclined surface 100: Conveyor 102: Main body 104: Drive chain 106: Conveyor belt 108: Suction hole 110: Suction device 112A, 112B: Rotating brush 114: Shaft 116: Brush 120: Fixing auxiliary roller 122: Gear 124: Chain 126: Sprocket 126a: Shaft 200: Conveyor belt 202: Belt body 204: Suction hole 206: Chamfering 210: Belt plate 212: Suction hole 214: Adhesive layer 250: Belt body 252: Suction hole 260: Belt plates 262, 264: Suction holes W, W1, W2 :work

Claims (6)

A conveyor for a surface treatment apparatus provided with a rotating brush that performs a desired treatment in contact with a surface to be treated,
A plurality of suction holes are formed, a conveyor belt for sending the processing object in the transport direction and passing the rotating brush;
Suction means for sucking the processing object through the suction holes and fixing the object to the conveyor belt;
A fixed auxiliary roller that is rotatably provided at an inlet portion and an outlet portion of the rotating brush, and that pushes the processing object toward the conveyor belt;
A rotational drive mechanism for rotating the fixed auxiliary roller;
Equipped with a,
The rotational drive mechanism is
A sprocket that is rotatably supported below the conveyor belt and is rotated by drive means;
A gear that is rotatably supported below the conveyor belt and meshes with the sprocket;
A chain spanning the gear and the fixed auxiliary roller;
Including
The conveyance conveyor of a surface treatment apparatus, wherein the fixing auxiliary roller is rotatable within a predetermined range with the gear as a rotation center .   The conveyance conveyor of the surface treatment apparatus according to claim 1, wherein the fixing auxiliary roller rotates in a direction that does not interfere with conveyance of the processing target.   The transport conveyor of the surface treatment apparatus according to claim 1, wherein the fixing auxiliary roller is movable up and down with respect to the conveyor belt according to the thickness of the processing target. The conveyance conveyor of the surface treatment apparatus as described in any one of Claims 1-3 provided with the tension mechanism which prevents the slack of the chain of the said rotational drive mechanism. The conveyor belt is
A belt body in which the plurality of suction holes are formed;
A number of suction holes of the same size or less as the suction holes are formed at positions corresponding to the suction holes of the belt body, and an adhesive layer is provided on one main surface, and the whole or a part of the belt body. Belt plate that can be glued to,
The conveyance conveyor of the surface treatment apparatus as described in any one of Claims 1-4 characterized by the above-mentioned. The conveyor belt is
The plurality of suction holes are divided into a plurality of regions;
The suction hole included in at least one region of the plurality of regions has at least one of the size of the hole or the distance between adjacent suction holes in the same region as compared to the suction hole included in the other region. It is different, The conveyance conveyor of the surface treatment apparatus as described in any one of Claims 1-4 characterized by the above-mentioned.

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