JP7169148B2 - Conveyor - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device for inverting an object to be conveyed upside down while conveying the object.

2. Description of the Related Art Conventionally, there has been known a conveying device that reverses the upper and lower surfaces (front and back surfaces) of a conveyed article while conveying the conveyed article. In this conveying device, a belt is wound around upper and lower pulleys on the starting end side in the conveying direction and upper and lower pulleys on the terminating end side, and a pair of reversing belt portions whose upper and lower surfaces are reversed while being twisted in the conveying direction. is formed, and the upper and lower surfaces of the conveyed article are reversed while being conveyed by sandwiching the conveyed article between the pair of reversing belt portions.

In such a conveying device, the belt makes a large meandering motion when conveying an object. The reason for this is that the pair of reversing belts sandwiching the conveyed object appears as a movement to open left and right, which is the axial direction of the pulley, in the process of reversing.

When the articles are conveyed continuously, the articles may be displaced, the articles may fall off, or the articles may become stagnant and clogged. This is because the next object arrives before the belt, which meanders when the object is conveyed, returns to its original position after the object is conveyed, and the belt continues to meander. Items to be conveyed are likely to be misaligned, to fall off, or to stagnate, resulting in clogging. Therefore, it was difficult to continuously convey the articles to be conveyed, and the conveying capacity of the conveying device was low.

JP-A-8-244960

It was difficult to improve the conveying capacity of conventional conveying devices.

SUMMARY OF THE INVENTION An object of the present invention is to provide a conveying apparatus capable of improving the conveying capacity.

The conveying apparatus of the present invention includes a starting end side upper pulley and a starting end side lower pulley arranged vertically on the starting end side of the conveying direction in which conveyed objects are conveyed, and a terminal end side upper pulley arranged vertically on the terminal end side of the conveying direction. and a terminal side lower pulley, and the starting end side upper pulley, the terminal side lower pulley, the starting end side lower pulley and the terminal side upper pulley to return to the starting end side upper pulley in order, and the starting end A first reversing belt portion whose upper and lower surfaces are reversed while being twisted in the conveying direction is formed from the upper side pulley to the lower pulley on the terminal end side, and from the lower pulley on the starting end side to the upper pulley on the terminal end side. A second reversing belt portion whose upper and lower surfaces are reversed while being twisted with respect to the conveying direction is formed, and the conveyed article is sandwiched between the first reversing belt portion and the second reversing belt portion. and a meandering prevention mechanism that supports the first reversing belt portion from the lower surface near the terminal end side in the conveying direction.

According to the conveying apparatus of the present invention, the conveying capacity can be improved.

It is a side view of a conveying device showing an embodiment of the present invention. It is an enlarged end view of the starting end side of the conveying device same as the above. It is the perspective view which opened the opening-and-closing side frame part by the side of the terminal end of the conveying apparatus same as the above. It is sectional drawing of the terminal side of a conveying apparatus same as the above. FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 at the terminal end side of the same conveying device;

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

The conveying device 10 is a belt conveyor that reverses the upper and lower surfaces (front and rear surfaces) of the conveyed article 11 while conveying the conveyed article 11 in the conveying direction F. As shown in FIG. The conveyed object 11 has front and back surfaces, and may be, for example, in any shape such as a box shape or a bag shape, and may be in any shape such as a thin shape, a rectangular parallelepiped shape, or a cubic shape.

The conveying device 10 includes a frame 12, a plurality of pulleys 13 rotatably supported by the frame 12, a belt 14 wound around the pulleys 13, and a motor that drives the pulleys 13 to rotate the belt 14. 15, and a meandering prevention mechanism 16 for preventing meandering of the rotating belt 14, and the like.

The frame 12 includes an upper frame 20, a lower frame 21 arranged below the upper frame 20 with a predetermined interval, a side frame 22 on one side connecting the upper frame 20 and the lower frame 21, and a frame on the other side. It has side frames 23 and leg frames 24 that support the lower frame 21 with respect to the installation site.

The upper frame 20 and the lower frame 21 are formed in a substantially rectangular plate shape elongated in the conveying direction F, and side frames 22 and 23 are fixed to both sides by, for example, bolts and integrated.

The side frames 22, 23 are divided into a starting end side and a terminal end side in the conveying direction F, and have side frames 22a, 23a on the starting end side in the conveying direction F and side frames 22b, 23b on the terminal side. there is

One side frame 22 (22a, 22b) includes a fixed side frame portion 25 fixed to the lower frame 21, and an opening/closing side frame portion rotatably connected to the fixed side frame portion 25 by a hinge 26. has 27. The opening/closing side frame portion 27 is normally detachably fixed to the upper frame 20 with a plurality of bolts in a state where the side surface of the frame 12 is closed. is released and rotated via the hinge 26, the side surface of the frame 12 can be opened.

Each pulley 13 is configured such that the pulley portion 13b is rotatable with respect to the shaft portion 13a, and both ends of the shaft portion 13a are fixed to the frame 12 and supported. The pulley 13 has a starting end side upper pulley 30 and a starting end side lower pulley 31 arranged on the starting end side in the conveying direction F, and a terminal side upper pulley 32 and a terminal side lower pulley 33 arranged on the terminal side in the conveying direction F. ing. The length (width) of the pulley portion 13b of the pulley 13 is set in consideration of the meandering allowance of the belt 14. As shown in FIG. Further, the pulley portion 13b of the pulley 13 is crowned so that the center in the axial direction has a larger diameter than both ends, and has the effect of moving the belt 14 toward the center in the axial direction.

The starting end side upper pulley 30 includes a starting end side upper end pulley 30a supported on the starting end side of the upper frame 20, and a starting end side upper end pulley 30a supported between the side frames 22 and 23 on both sides below the starting end side upper end pulley 30a. It has a bend pulley 30b. Both ends of the shaft portion (shaft portion 13a) of the starting end side upper end pulley 30a are supported on the starting end side of the upper frame 20 by bearing members . One end of the shaft portion (shaft portion 13a) of the starting end side upper bend pulley 30b is detachably supported by the opening/closing side frame portion 27 of the side frame 22 on one side by bolting. The other end of the shaft portion (shaft portion 13a) of the starting end side upper bend pulley 30b is supported by the side frame 23 on the other side by bolting.

The starting end lower pulley 31 includes a starting end lower end pulley 31a supported on the starting end side of the lower frame 21, and a starting end lower bend pulley supported between the side frames 22 and 23 on both sides above the starting end lower end pulley 31a. has 31b. Both ends of the shaft portion (shaft portion 13a) of the starting end side lower end pulley 31a are supported on the starting end side of the lower frame 21 by bearing members . One end of the shaft portion (shaft portion 13a) of the starting end side lower bend pulley 31b is detachably supported by the opening/closing side frame portion 27 of the side frame 22 on one side by bolting. The other end of the shaft portion (shaft portion 13a) of the starting end side upper bend pulley 30b is supported by the side frame 23 on the other side by bolting.

The terminal-side upper pulley 32 includes a terminal-side upper end pulley 32a supported at the terminal end of the upper frame 20, and a terminal-side upper end pulley 32a supported between the side frames 22 and 23 on both sides below the terminal-side upper end pulley 32a. It has a bend pulley 32b. Both ends of the shaft portion (shaft portion 13a) of the terminal-side upper end pulley 32a are supported on the terminal end side of the upper frame 20 by bearing members . One end of the shaft portion (shaft portion 13a) of the terminal-side upper bend pulley 32b is detachably supported by the opening/closing side frame portion 27 of the side frame 22 on one side by bolting. The other end of the shaft portion (shaft portion 13a) of the terminal-side upper bend pulley 32b is supported by the side frame 23 on the other side by bolting.

The terminal-side lower pulley 33 includes a terminal-side lower end pulley 33a supported at the terminal end of the lower frame 21, and a terminal-side lower bend pulley supported between the side frames 22, 23 on both sides above the terminal-side lower end pulley 33a. has 33b. Both ends of the shaft portion (shaft portion 13a) of the terminal side lower end pulley 33a are supported on the terminal side of the lower frame 21 by bearing members . One end of the shaft portion (shaft portion 13a) of the terminal-side lower bend pulley 33b is detachably supported by the opening/closing side frame portion 27 of the side frame 22 on one side by bolting. The other end of the shaft portion (shaft portion 13a) of the terminal side lower bend pulley 33b is supported by the side frame 23 on the other side by bolting.

The starting end upper end pulley 30a of the starting end upper pulley 30, the starting end lower end pulley 31a of the starting end lower pulley 31, and the starting end lower bend pulley 31b are arranged vertically, and the terminal end upper end of the terminal end upper pulley 32 is arranged. The end pulley 32a, the terminal-side lower end pulley 33a of the terminal-side lower pulley 33, and the terminal-side lower bend pulley 33b are arranged vertically. Further, the starting end side upper bend pulley 30b of the starting end side upper pulley 30 is arranged downstream of the starting end side upper end pulley 30a in the conveying direction F, and the terminal side upper bend pulley 32b of the terminal side upper pulley 32 is arranged on the terminal side upper side. It is arranged on the upstream side in the transport direction F of the end pulley 32a.

Therefore, the starting end upper bend pulley 30b of the starting end upper pulley 30 is not aligned vertically with respect to the starting end lower bend pulley 31b of the starting end lower pulley 31, and the starting end lower bend pulley 31b of the starting end lower pulley 31 is positioned in the conveying direction. It is arranged downstream of F. The terminal-side upper bend pulley 32b of the terminal-side upper pulley 32 is not aligned in the vertical direction with respect to the terminal-side lower bend pulley 33b of the terminal-side lower pulley 33, and is positioned in the conveying direction F from the terminal-side lower bend pulley 33b of the terminal-side lower pulley 33. placed upstream.

Further, the pulley 13 has a drive pulley 35 arranged below the lower frame 21 and a pair of take-up pulleys 36 . The drive pulley 35 and the pair of take-up pulleys 36 are supported by pulley support portions 37 attached to the lower side of the lower frame 21 .

An endless flat belt is used as the belt 14 . The belt 14 extends from a starting side upper pulley 30 (a starting side upper end pulley 30a and a starting side upper bend pulley 30b) to a terminal side lower pulley 33 (a terminal side lower bend pulley 33b and a terminal side lower end pulley 33a), one take-up pulley 36, Drive pulley 35, other take-up pulley 36, starting side lower pulley 31 (starting side lower end pulley 31a and starting side lower bend pulley 31b), terminal side upper pulley 32 (terminating side upper bend pulley 32b and terminal side upper end pulley 32a) , the starting end upper pulley 30 (the starting end upper end pulley 30a and the starting end upper bend pulley 30b).

The belt 14 is twisted 180° clockwise in the conveying direction F from the upper pulley 30 on the starting end side (upper bend pulley 30b on the starting end side) to the lower pulley 33 on the end side (lower bend pulley 33b on the terminal side). is formed, and the feed direction F A second reversing belt portion 41 whose upper and lower surfaces are reversed while being twisted clockwise by 180° is formed. Therefore, when the belt 14 rotates, the first reversing belt portion 40 and the second reversing belt portion 41 are opposed to each other and are in contact with each other in the absence of the conveyed article 11. In the conveying direction F, for example, The upper and lower surfaces are reversed while being twisted clockwise by 180°.

Further, the motor 15 rotates the drive pulley 35 to rotate the belt 14 so that the first reversing belt portion 40 and the second reversing belt portion 41 move in the conveying direction F. As shown in FIG. Note that instead of using the motor 15, a motor pulley (motor roller) in which a motor is incorporated in the drive pulley 35 may be used.

Further, the meandering prevention mechanism 16 supports the first reversing belt portion 40, which is inclined in the width direction near the end side in the conveying direction F, from the lower surface side. The meandering prevention mechanism 16 includes a guide unit 50, a support portion 51 that supports the guide unit 50, and a pair of hinges 52 that attach both ends of the support portion 51 to the side frames 22 and 23 on both sides.

The guide unit 50 has a support shaft 54 and a plurality of rotating portions 55 which are divided in the axial direction of the support shaft 54 and which are independently rotatable. The support shaft 54 is supported on the upper surface of the support portion 51 by a plurality of support members 56. As shown in FIG. A plurality of rotating portions 55 and a plurality of spacers 57 interposed between the adjacent rotating portions 55 are inserted through the support shaft 54, and the rotating portions 55 at both ends are retained by retaining rings (not shown) at both ends. ing. The rotating part 55 has bearings and is rotatable with respect to the support shaft 54 .

The support portion 51 is formed in an elongated plate shape along the support shaft 54, and supports the support shaft 54 by a plurality of support members 56 attached to the upper surface. A pair of long holes (not shown) elongated along the longitudinal direction of the support portion 51 are formed at both ends of the support portion 51 .

The hinges 52 are attached to both ends of the support part 51 and both sides of the frame 12 so that the positions thereof can be adjusted, and the angle between the support part 51 and both sides of the frame 12 can be adjusted. The hinge 52 is configured such that one blade portion 60 and the other blade portion 61 are rotatably connected by a connecting shaft 62 . One blade portion 60 of the hinge 52 is fixed to the support portion 51 by a fixture 63 inserted through an elongated hole at the end of the support portion 51 . A blade portion 61 at the other end of the hinge 52 is fixed to the side frames 22 and 23 by a fixture 63 . A vertically elongated hole 64 is formed at the hinge mounting position of the side frames 22 and 23, and the other blade portion 61 of the hinge 52 is fixed by a fixture 63 inserted through the elongated hole 64. As shown in FIG. In the side frame 22 on one side, the fixed side frame portion 25 is formed with an elongated hole 64, and the other blade portion 61 of the hinge 52 is fixed by a fixture 63 inserted through the elongated hole 64. As shown in FIG. A bolt and a nut, for example, are used as the fixture 63 .

In the meandering prevention mechanism 16, the support shaft 54 is inclined corresponding to the inclination of the width direction of the first reversing belt portion 40 in the vicinity of the end side of the conveying direction F, and the plurality of rotating portions 55 are arranged in the first direction. The bottom side of the reversing belt portion 40 is contacted and supported. The inclination angle of the support shaft 54 is preferably larger than the inclination angle of the first reversing belt portion 40 in the width direction. In the present embodiment, as shown in FIG. 5, the first reversing belt portion 40 of the belt 14 moves toward the conveying direction F in the width direction of the first reversing belt portion 40 in the vicinity of the terminal end side in the conveying direction F. The right side of the shaft 54 is high and the left side is low. Correspondingly, the right side of the support shaft 54 is high and the left side is low. Further, the axial direction of the support shaft 54 is parallel to the direction perpendicular to the transport direction F. As shown in FIG.

One blade portion 60 of hinge 52 is attached to the upper surface side of support portion 51 at one end located below support portion 51 . One blade portion 60 of the hinge 52 is attached to the lower surface side of the support portion 51 at the other end located above the support portion 51 .

The mounting position of one blade 60 of the hinges 52 at both ends can be adjusted by the long holes at both ends of the support portion 51, and the other blade 60 of the hinge 52 can be mounted by the long holes 64 of the side frames 22 and 23. By making the mounting position adjustable, the inclination angle and height position of the guide unit 50 (support shaft 54) are arbitrarily adjusted and mounted between the side frames 22 and .

Next, the operation of the conveying device 10 will be described.

The conveying device 10 is installed, for example, between the conveyor on the upstream side and the conveyor on the downstream side in the conveying direction F of the article 11 . Then, the conveying device 10 inverts the upper and lower surfaces of the conveyed article 11 while conveying the conveyed article 11 sent from the conveyor on the upstream side, and sends the conveyed article 11 to the conveyor on the downstream side.

In the conveying device 10, the belt 14 is rotated by the drive of the motor 15, and the first reversing belt portion 40 and the second reversing belt portion 41 move in the conveying direction F while facing each other. The upper and lower surfaces are reversed while being twisted by 180°.

The goods 11 conveyed by the conveyor on the upstream side are received between the first reversing belt portion 40 and the second reversing belt portion 41, and the first reversing belt portion 40 and the second reversing belt portion 41 The object 11 is conveyed in the conveying direction F while being sandwiched and held between.

At this time, the starting end upper bend pulley 30b of the starting end upper pulley 30 is shifted downstream in the conveying direction F from the starting end lower bend pulley 31b of the starting end lower pulley 31. Since the distance between the bend pulley 30b and the lower bend pulley 31b on the starting end side of the lower pulley 31 on the starting end side is also widened, if a plurality of objects 11 to be conveyed from the conveyor on the upstream side are overlapped, the first reversing belt portion 40 and the second reversing belt portion 41, the conveyed object 11 located on the lower side precedes and passes above the lower bend pulley 31b of the starting end side of the lower pulley 31 of the starting end side, and is transferred to the upper pulley of the starting end side. By entering the lower side of the upper bend pulley 30b on the starting end side of 30, the conveyed product 11 pushes down the second reversing belt portion 41 and the starting ends of the upper bend pulley 30b on the starting end side of the upper pulley 30 on the starting end side and the lower pulley 31 on the starting end side. It is possible to pass between the side lower bend pulley 31b and prevent the object 11 from being clogged.

The first reversing belt portion 40 and the second reversing belt portion 41 move in the conveying direction F while facing each other, and the upper and lower surfaces are reversed while being twisted 180° toward the conveying direction F, thereby reversing the conveyed object 11. While being conveyed in the conveying direction F, the upper and lower surfaces of the conveyed article 11 are reversed.

The conveyed article 11 whose upper and lower surfaces have been reversed is sent out from between the first reversing belt section 40 and the second reversing belt section 41 to the conveyor on the downstream side.

At this time, the terminal-side upper bend pulley 32b of the terminal-side upper pulley 32 is shifted upstream in the conveying direction F from the terminal-side lower bend pulley 33b of the terminal-side lower pulley 33. Since the interval between the bend pulley 32b and the lower bend pulley 33b on the terminal side of the lower pulley 33 is also widened, it is assumed that a plurality of conveyances between the first reversing belt section 40 and the second reversing belt section 41 are performed. Even if the objects 11 are conveyed in an overlapping state, when the conveyed objects 11 pass under the terminal-side upper bend pulley 32b of the terminal-side upper pulley 32, the second reversing belt portion 41 is pushed up and the terminal-side upper part is pushed up. It is possible to pass between the upper bend pulley 32b on the terminal side of the pulley 32 and the lower bend pulley 33b on the terminal side of the lower pulley 33, thereby preventing clogging of the article 11 to be conveyed.

While the belt 14 meanders when the article 11 is conveyed, the meandering prevention mechanism 16 suppresses the meandering of the belt 14 . The meandering of the belt 14 is due to the fact that the belt 14 is twisted 180° and attached to the conveyor (wound around the pulley), so when the conveyed object 11 passes through the belt 14, the tension of the belt 14 applied to the pulley is It is thought that this occurs because the left and right are different.

Here, the case where the meandering prevention mechanism 16 is not provided will be described.

When the conveyed object 11 is not conveyed, the rotation of the belt 14 causes the first reversing belt portion 40 and the second reversing belt portion 41 to move in the conveying direction F from the starting end side upper pulley 30 and the starting end side lower pulley 31. While being twisted by 180°, it is reversed to reach the terminal side lower pulley 33 and the terminal side upper pulley 32, but since the tension on both sides in the width direction of the first reversing belt part 40 and the second reversing belt part 41 is substantially equal, the meandering The axial center position of the terminal-side lower pulley 33 and the terminal-side upper pulley 32 is reached.

When the article 11 is conveyed, the first reversing belt section 40 and the second reversing belt section 41 sandwich the article 11 to widen the distance between them, and the process of reversing while twisting 180° in the conveying direction F. , the terminal-side lower pulley 33 and the terminal-side upper pulley 32 appear to open in the axial direction, left and right. In the present embodiment, since the first reversing belt portion 40 and the second reversing belt portion 41 are reversed in the conveying direction F while being twisted clockwise by 180°, the first reversing belt portion 40 is rotated in the conveying direction. The second reversing belt portion 41 meanders in the meandering direction w1 that is the right direction with respect to F, and the second reversing belt portion 41 meanders in the meandering direction w2 that is the left direction with respect to the conveying direction F. As a result, the first reversing belt portion 40 And the terminal end side of the second reversing belt portion 41 appears as a movement to open left and right in the axial direction of the terminal side lower pulley 33 and the terminal side upper pulley 32 .

The first reversing belt portion 40 located below the second reversing belt portion 41 and inclined in the width direction in the vicinity of the terminal end of the conveying direction F (the position where the meandering prevention mechanism 16 is arranged), It is pressed downward by the second conveying belt portion 41 through the conveyed article 11, and is easily bent downward under the influence of the weight of the first reversing belt section 40, the weight of the conveyed article 11, and the like. As the first reversing belt portion 40 bends downward in this way, the balance of the tension on both sides in the width direction of the first reversing belt portion 40 is lost, and the traveling direction of the first reversing belt portion 40 changes to the conveying direction F. As a result, the first reversing belt portion 40 tends to meander greatly in the meandering direction w1. At this time, the meandering amount of the second reversing belt portion 41 in the meandering direction w2 is relatively small, but the meandering amount of the first reversing belt portion 40 in the meandering direction w1 is large. The amount of meandering in the meandering direction w1 is greater than the amount of meandering in the meandering direction w2 of the second reversing belt portion 41, and a large difference in the meandering amount occurs between the first reversing belt portion 40 and the second reversing belt portion 41.

Thus, if the first reversing belt portion 40 meanders more than the second reversing belt portion 41 and the difference in meandering amount between the first reversing belt portion 40 and the second reversing belt portion 41 is large, The position of the conveyed article 11 in the width direction of the first reversing belt portion 40 and the second reversing belt portion 41 shifts, the conveyed article 11 falls off, or the conveyed article 11 stagnates and clogging easily occurs. Further, the meandering first reversing belt portion 40 and the second reversing belt portion 41 return to their original positions after the conveyed articles 11 are conveyed. Before the belt portion 40 and the second reversing belt portion 41 return to their original positions after conveying the conveyed object 11, the next conveyed object 11 comes, and the first reversing belt portion 40 and the second reversing belt portion If the meandering state of the 41 continues, the position of the conveyed article 11 may be shifted, the conveyed article 11 may drop, or the conveyed article 11 may become stagnant and easily clogged. Therefore, it was difficult to convey the goods 11 continuously, and the conveying capacity was low.

On the other hand, when the meandering prevention mechanism 16 is provided, the lower surface side of the first reversing belt portion 40 is supported by the meandering prevention mechanism 16 in the vicinity of the terminal end side in the conveying direction F, so that the first reversing belt portion 40 is downward. Suppressing bending, improving the balance of tension on both sides in the width direction of the first reversing belt part 40, and directing the traveling direction of the first reversing belt part 40 to the conveying direction F, the first reversing belt It suppresses meandering of the portion 40 in the meandering direction w1. In the present embodiment, the meandering amount of the first reversing belt portion 40 meandering in the meandering direction w1 is reduced to about half compared to the case where the meandering prevention mechanism 16 is not provided.

Moreover, the inclination angle of the support shaft 54 of the meandering prevention mechanism 16 is made larger than the inclination angle of the first reversing belt portion 40, and the first reversing belt portion 40 is slightly lifted from the lower surface side by the plurality of rotating portions 55. By supporting, the first reversing belt portion 40 is suppressed from being bent downward, the tension balance on both sides of the first reversing belt portion 40 in the width direction is improved, and the first reversing belt portion 40 advances. The effect of directing the direction to the conveying direction F is improved, and the meandering amount of the first reversing belt portion 40 is further reduced.

In this way, the meandering of the first reversing belt portion 40 is suppressed, and the difference in meandering amount between the first reversing belt portion 40 and the second reversing belt portion 41 is small. In addition, it is possible to prevent the position of the conveyed article 11 in the width direction of the second reversing belt portion 41 from shifting, the conveyed article 11 from falling off, and the conveyed article 11 from stagnating and jamming. By preventing the positional deviation of the conveyed article 11, the conveyed article 11 is sent out from a fixed position in the center in the width direction from the terminal end side of the conveying device 10 to the conveyor on the downstream side, and the conveyed article 11 is transferred in the post-process. Processing can be stabilized.

Furthermore, when conveying the article 11 continuously, before the meandering first reversing belt portion 40 and the second reversing belt portion 41 return to their original positions after conveying the article 11, the next article 11 is conveyed. , and the meandering state of the first reverse belt portion 40 and the second reverse belt portion 41 may continue. Since the difference in meandering amount between the reversing belt portion 40 and the second reversing belt portion 41 is small, the position of the conveyed article 11 is shifted, the conveyed article 11 falls off, or the conveyed article 11 stagnate and jams. prevented. Therefore, the conveying device 10 can continuously convey the articles 11, thereby improving the conveying capability.

In addition, the meandering prevention mechanism 16 is divided into a plurality of parts in the axial direction of the support shaft 54 and has a plurality of rotating parts 55 which are provided so as to be independently rotatable. Since the plurality of rotating parts 55 are inclined corresponding to the inclination of 40 and support the first reversing belt part 40 from the lower surface side, the first reversing belt part 40 can be supported while maintaining the meandering prevention effect.

For example, instead of the multiple rotating parts 55, a single integrated rotating part (pulley) that is not divided in the axial direction may be used, but the integrated rotating parts are simply replaced at the positions of the multiple rotating parts 55. Meandering prevention effect may not be obtained only by the above. Since this contact is made with the first reversing belt portion 40 in a continuous line along the axial direction of the integral rotating portion, the inclination at the contact position of the first reversing belt portion 40 where the integral rotating portion contacts, Due to differences in friction, speed, etc., the traveling direction of the first reversing belt portion 40 tends to be directed upward in the direction of inclination of the first reversing belt portion 40 in the inclined state, and the meandering direction w1 of the first reversing belt portion 40. meandering to the

By using a plurality of rotating parts 55 divided in the axial direction of the support shaft 54, each rotating part 55 supports the first reversing belt part 40 at points, and each rotating part 55 contacts the first reversing belt part. Since each rotating part 55 rotates independently according to the inclination, friction, speed, etc. at the contact point 40, the meandering prevention effect is maintained without promoting the meandering of the first reversing belt part 40. A first reversing belt portion 40 can be supported.

Furthermore, even in the case of the integral rotating portion, it may be possible to support the first reversing belt portion 40 while maintaining the meandering prevention effect of the first reversing belt portion 40 by adjusting the position of the integral rotating portion. However, it may be difficult to adjust the position of the integral rotating part, and it may be difficult to accommodate various types of conveyed objects 11 .

By using a plurality of rotating parts 55 divided in the axial direction of the support shaft 54, each rotating part 55 supports the first reversing belt part 40 at a point, so that each rotating part 55 supports the first reversing belt part 40. Even if there is a slight deviation in the angle supporting the belt, the effect on the traveling method of the first reversing belt part 40 is small, and the position of each rotating part 55 can be easily adjusted, and various conveyed objects 11 can be handled. You can also

In addition, the inclination angle and height of the support shaft 54 and the rotating portion 55 of the meandering prevention mechanism 16 can be arbitrarily adjusted according to the inclination angle and height of the first reversing belt portion 40 . The mounting position of one blade portion 60 of the hinges 52 at both ends can be adjusted by the long holes at both ends of the support portion 51, and the mounting position of the other blade portion 60 of the hinge 52 can be adjusted by the long holes 64 of the side frames 22 and 23. is adjustable, and the angle between the blades 60 and 61 of the hinge 52 is also adjustable. can be performed arbitrarily and easily.

Further, when the belt 14 is deteriorated or damaged, the belt 14 is replaced. When replacing the belt 14, the bolts fixing the opening/closing side frame portion 27 of the side frame 22 on one side to the upper frame 20 are removed, and the opening/closing side frame portion 27 is rotated open by the hinge 26, and one side of the frame 12 is opened. open the side. In this state, the upper frame 20, the starting end side upper end pulley 30a and the starting end side upper bend pulley 30b of the starting end side upper pulley 30, the starting end side lower bend pulley 31b of the starting end side lower pulley 31, the terminal side upper end pulley 32a of the terminal side upper pulley 32, and The terminal-side upper bend pulley 32b and the terminal-side lower bend pulley 33b of the terminal-side lower pulley 33 are cantilevered by the side frame 23 on the other side. The belt 14 can be easily replaced while one side of the frame 12 is open.

At this time, the meandering prevention mechanism 16 is attached between the side frames 22 and 23 on both sides. The belt 14 can be replaced without removing it.

As described above, in the conveying device 10 of the present embodiment, since the meandering prevention mechanism 16 that supports the first reversing belt portion 40 from the lower surface near the terminal end side in the conveying direction F is provided, the belt movement that occurs when conveying the article 11 is prevented. It is possible to suppress the meandering of 14, stably and continuously convey the conveyed article 11, and improve the conveying capacity.

Further, the meandering prevention mechanism 16 is divided into a plurality of parts in the axial direction of the support shaft 54 and has a plurality of rotating parts 55 which are provided so as to be independently rotatable. Since the plurality of rotating parts 55 are inclined corresponding to the inclination of 40 and support the first reversing belt part 40 from the lower surface side, the first reversing belt part 40 can be supported while maintaining the meandering prevention effect. That is, each rotating portion 55 supports the first reversing belt portion 40 at a point, and each rotating portion 55 rotates according to the inclination, friction, speed, etc. at the contact point of the first reversing belt portion 40 with which each rotating portion 55 contacts. Since the portion 55 rotates independently, the first reversing belt portion 40 can be supported while maintaining the meandering prevention effect. In addition, even if there is a slight deviation in the angle at which each rotating portion 55 supports the first reversing belt portion 40, there is little effect on the traveling method of the first reversing belt portion 40, and the position of each rotating portion 55 can be changed. It is easy to adjust and can handle various types of conveyed objects 11.

Further, in the meandering prevention mechanism 16, hinges 52 are attached to both ends of a support portion 51 that supports a support shaft 54 so as to be positionally adjustable along the longitudinal direction, and are attached to the side frames 22 and 23 on both sides of the frame 12. Since the hinge 52 is attached so that the angle can be adjusted, the inclination angle, height position, etc. of the support shaft 54 can be arbitrarily and easily adjusted.

In addition, since the side frame 22 on one side has the opening/closing side frame portion 27 rotatably provided on the fixed side frame portion 25 by means of hinges 26, the opening/closing side frame portion 27 is rotated to move one side of the frame 12. By opening, the belt 14 can be easily replaced.

Moreover, the meandering prevention mechanism 16 is attached between the side frames 22 and 23 on both sides, but is mounted on the fixed side frame portion 25 on the one side frame 22 side, so the meandering prevention mechanism 16 is removed. The belt 14 can be replaced without the need to replace the belt.

In addition, the starting end side upper bend pulley 30b of the starting end side upper pulley 30 is arranged downstream of the starting end side upper end pulley 30a in the conveying direction F, and the terminal side upper bend pulley 32b of the terminal side upper pulley 32 is arranged on the terminal side upper side. Since it is arranged upstream of the end pulley 32a in the conveying direction F, even if a plurality of conveyed objects 11 are conveyed in an overlapping state, the pulley 32a is pulled between the upper pulley 30 on the starting end side and the lower pulley 31 on the starting end side, and on the terminating end side. Between the upper pulley 32 and the lower pulley 33 on the terminal side, it is possible to prevent the article 11 from clogging.

The starting end lower bend pulley 31b of the starting end lower pulley 31 is also arranged downstream in the conveying direction F from the starting end lower end pulley 31a. It may be arranged upstream in the transport direction F from the side lower end pulley 33a. In this case, the starting end side upper bend pulley 30b and the starting end side lower bend pulley 31b, and the terminal side upper bend pulley 32b and the terminal side lower bend pulley 33b may be arranged side by side in the vertical direction. side or upstream.

In addition, the axial direction of the support shaft 54 is not limited to being parallel to the direction perpendicular to the conveying direction F, but the direction of movement of the first reversing belt portion 40 is directed toward the conveying direction F. You may incline with respect to the direction orthogonal to. In this case, the support portion 51 and the hinge 52 may be fixed by, for example, one fixture 63 so as to be rotatably adjustable.

Further, the meandering prevention mechanism 16 preferably uses a plurality of rotating parts 55 divided in the axial direction of the support shaft 54, but the above-described integral rotating part may be used, or a guide plate or the like may be used. good.

Although the embodiment of the present invention and its modifications have been described above, it is also possible to appropriately combine the embodiment and each modification without departing from the gist of the present invention.

10 Conveyor
11 Conveyance
12 frames
14 Belt
16 meandering prevention mechanism
22, 23 side frame
25 Fixed side frame part
27 Opening/closing side frame
30 Start side upper pulley
30a Start side upper end pulley
30b Start side upper bend pulley
31 Start side lower pulley
32 End side upper pulley
32a Terminal side upper end pulley
32b Terminal side upper bend pulley
33 Terminal side lower pulley
40 First reversing belt section
41 Second reversing belt section
51 Support
52 Hinges
54 Spindle
55 Rotating part F Conveying direction

Claims (5)

a starting end side upper pulley and a starting end side lower pulley arranged vertically on the starting end side of the conveying direction in which the conveyed object is conveyed;
a terminal-side upper pulley and a terminal-side lower pulley arranged vertically on the terminal side in the conveying direction;
It is wound in order from the starting end side upper pulley to the terminating end side lower pulley, the starting end side lower pulley and the terminating end side upper pulley to return to the starting end side upper pulley, and from the starting end side upper pulley to the terminating end side. A first reversing belt portion whose upper and lower surfaces are reversed while being twisted in the conveying direction is formed over the lower pulley, and in the conveying direction from the starting end side lower pulley to the terminal end side upper pulley. On the other hand, a second reversing belt portion whose upper and lower surfaces are reversed while being twisted is formed. an endless belt for inverting the upper and lower surfaces of the
and a meandering prevention mechanism that supports the first reversing belt portion from the bottom side in the vicinity of the terminal end side in the conveying direction. The starting end side upper pulley includes a starting end side upper end pulley arranged on the starting end side in the conveying direction, and a starting end side of the first reversing belt portion arranged downstream of the starting end side upper end pulley in the conveying direction. and a starting end side upper bend pulley to form,
The terminal-side upper pulley includes a terminal-side upper end pulley arranged on the terminal side in the conveying direction, and a terminal-side upper end pulley arranged upstream in the conveying direction from the terminal-side upper end pulley, and on the terminal side of the second reversing belt portion. 2. The conveying apparatus of claim 1, further comprising a forming terminal end upper bend pulley. The meandering prevention mechanism has a support shaft and a plurality of rotating parts divided in the axial direction of the support shaft and provided to be rotatable independently of each other. 3. The conveying device according to claim 1, wherein the plurality of rotating portions are inclined corresponding to the inclination of the reversing belt portion in the width direction, and the plurality of rotating portions support the first reversing belt portion from the lower surface side. A frame that supports the starting end side upper pulley, the starting end side lower pulley, the terminal side upper pulley and the terminal side lower pulley,
The meandering prevention mechanism is attached to a support portion that supports the support shaft, both ends of the support portion and both sides of the frame so that the positions thereof can be adjusted, and the angle between the support portion and both sides of the frame is adjusted. 4. The conveying device according to claim 3, further comprising a pair of hinges that allow adjustment of the . The frame includes side frames on both sides to which the hinges of the meandering prevention mechanism are attached,
The side frame on one side has a fixed side frame portion to which one of the hinges is attached, and an opening/closing side frame portion that is rotatably connected to the fixed side frame portion and opens and closes the side surface of the frame. 5. The conveying device according to claim 4, characterized in that it is.

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