JP2020059596A - Transport device - Google Patents

Abstract

To provide a transport device that can improve the transport performance.SOLUTION: A belt 14 is hanged in a circulating manner on a starting end side upper pulley 30, a terminating end side bottom pulley 33, a starting end side bottom pulley 31, and a terminating end side upper pulley 32, and is returned to the starting end side upper pulley 30. On the belt 14, a first inversion belt part 40, where the upper and bottom faces are inverted while twisting from the starting end side upper pulley 30 to the terminating end side bottom pulley 33 against a transport direction F, is formed, and a second inversion belt 41, where the upper and bottom faces are inverted while twisting from the starting end side bottom pulley 31 to the terminating end side upper pulley 32 against the transport direction F, is formed. The upper and bottom faces of a transport article 11 are inverted while the transport article 11 is transported being sandwiched between the first inverting belt 40 and the second inverting belt 41. A meandering prevention mechanism 16 supports the first inverting belt 40 from a lower surface side in the proximity of the terminating end side in the transport direction F.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a transport device that reverses the upper and lower surfaces of a transported product while transporting the transported product.

  2. Description of the Related Art Conventionally, there is known a transport device that reverses the upper and lower surfaces (front and back surfaces) of a transported product while transporting the transported product. In this conveying device, a pair of reversing belt portions are provided, in which 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 side, and the upper and lower surfaces are inverted while being twisted in the conveying direction with respect to the belt. The upper and lower surfaces of the conveyed product are inverted while the conveyed product is sandwiched between the pair of reversing belt portions and conveyed.

  In such a transport device, the belt greatly meanders when transporting the transported object. This is because the pair of reversing belts sandwiching the conveyed product appear as a movement of opening to the left and right in the axial direction of the pulley in the process of reversing.

  When the conveyed items are continuously conveyed, the conveyed items may be misaligned, the conveyed items may drop, or the conveyed items may become stagnant and jam. This is because the belt that meandered during the conveyance of the conveyed object comes to the next conveyed object before it returns to the original position after the conveyed object is conveyed, and the belt continues to meander. It is easy for misalignment of the transported object, dropping of the transported object, and stagnation of the transported object to cause clogging. Therefore, it is difficult to continuously convey the conveyed object, and the conveying ability of the conveying device is low.

JP-A-8-244960

  It has been difficult to improve the carrying capacity of the conventional carrying device.

  An object of the present invention is to provide a transfer device that can improve the transfer capacity.

  The conveying device of the present invention includes a starting end side upper pulley and a starting end side lower pulley which are vertically arranged at a starting end side in a conveying direction for conveying a conveyed object, and an end side upper pulley which is arranged vertically at a terminal end side in the conveying direction. And a terminal-side lower pulley, the starting-side upper pulley, the terminal-side lower pulley, the starting-side lower pulley, the terminal-side upper pulley, and the starting-end upper pulley, and the starting-end lower pulley, and the starting-end lower pulley. A first reversing belt portion is formed from the upper side pulley to the terminal side lower pulley so that the upper and lower surfaces thereof are reversed while twisting with respect to the conveying direction, and the starting end side lower pulley to the terminal side upper pulley. 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 object is sandwiched between the first reversing belt portion and the second reversing belt portion. so And endless belt for reversing the upper and lower surfaces of the conveyed object while feed is for and a meandering prevention mechanism to support the first reversing belt portion from the lower surface side at the end side near the transport direction.

  According to the carrying device of the present invention, the carrying capacity can be improved.

It is a side view of the conveyance apparatus which shows one embodiment of the present invention. It is an enlarged end view of the starting end side of the same carrying device. It is a perspective view which opened the opening-and-closing side frame part by the side of the end of a transportation device same as the above. It is sectional drawing of the terminal side of a carrying device same as the above. FIG. 6 is a sectional view taken along the line AA of FIG.

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

  The transport device 10 is a belt conveyor that reverses the upper and lower surfaces (front and back surfaces) of the transported object 11 while transporting the transported object 11 in the transport direction F. The conveyed article 11 has front and back surfaces, and may have any shape such as a box shape or a bag shape, and may have any shape such as a thin shape, a rectangular parallelepiped shape, and a cubic shape.

  The transfer 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 is a drive unit that drives the pulley 13 to rotate the belt 14. A meandering prevention mechanism 16 and the like for preventing meandering of the rotating belt 14 and the belt 15.

  The frame 12 includes an upper frame 20, a lower frame 21 arranged below the upper frame 20 with a predetermined gap, a side frame 22 on one side connecting the upper frame 20 and the lower frame 21, and another side frame. A side frame 23 and a leg frame 24 that supports the lower frame 21 with respect to the installation location are provided.

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

  The side frames 22 and 23 are divided into a starting end side and a terminating end side in the carrying direction F, and have side frames 22a and 23a on the starting end side in the carrying direction F, and side frames 22b and 23b on the ending side. There is.

  The side frame 22 (22a, 22b) on one side is a fixed side frame part 25 fixed to the lower frame 21, and an open / close side frame part rotatably connected to the fixed side frame part 25 by a hinge 26. Have 27. The open / close 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, and is fixed to the upper frame 20 when the belt is replaced. Is released and rotated via the hinge 26, so that the side surface of the frame 12 can be opened.

  Further, each pulley 13 is configured such that a pulley portion 13b is rotatable with respect to the shaft portion 13a, and both ends of the shaft portion 13a are fixed to and supported by the frame 12. The pulley 13 includes a starting end side upper pulley 30 and a starting end side lower pulley 31 arranged on the starting end side in the transport direction F, and a terminal end side upper pulley 32 and a termination end side lower pulley 33 arranged on the terminal end side in the transport direction F. ing. The pulley portion 13b of the pulley 13 has a length (width) considering the meandering allowance of the belt 14. Further, the pulley portion 13b of the pulley 13 is subjected to a crowning process in which the center in the axial direction has a larger diameter than the both ends, and has an effect of bringing the belt 14 closer to 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 supported below the starting end side upper end pulley 30a between the side frames 22 and 23 on both sides. 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 by the bearing member 34 on the starting end side of the upper frame 20. One end of the shaft portion (shaft portion 13a) of the start end side upper bend pulley 30b is detachably supported by an open / close 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 other side frame 23 by bolting.

  The starting end side lower pulley 31 is a starting end side lower end pulley 31a supported on the starting end side of the lower frame 21, and a starting end side lower bend pulley supported between the side frames 22 and 23 on both sides above the starting end side lower end pulley 31a. It has 31b. Both ends of the shaft portion (shaft portion 13a) of the starting end side lower end pulley 31a are supported by the bearing member 34 on the starting end side of the lower frame 21. One end of the shaft portion (shaft portion 13a) of the starting end side lower bend pulley 31b is detachably supported by an open / close 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 other side frame 23 by bolting.

  The terminal-side upper pulley 32 includes a terminal-side upper end pulley 32a supported by a terminal portion of the upper frame 20, and a terminal-side upper end pulley 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 end upper end pulley 32a are supported by the bearing member 34 on the terminal end side of the upper frame 20. One end of the shaft portion (shaft portion 13a) of the terminal side upper bend pulley 32b is detachably supported by the open / close 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 is a terminal-side lower end pulley 33a supported by a terminal portion of the lower frame 21, and a terminal-side lower bend pulley supported between the side frames 22 and 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 by the bearing member 34 on the terminal side of the lower frame 21. One end of the shaft portion (shaft portion 13a) of the terminal side lower bend pulley 33b is detachably supported by the open / close 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 lower bend pulley 33b on the terminal end side is supported by the side frame 23 on the other side by bolting.

  The starting-side upper end pulley 30a of the starting-side upper pulley 30 and the starting-side lower end pulley 31a and the starting-side lower bend pulley 31b of the starting-side lower pulley 31 are arranged side by side in the up-down direction, and the terminal-side upper pulley 32 has an upper end side. 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 side by side in the vertical direction. 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 transport direction F, and the terminating-side upper bend pulley 32b of the terminating-side upper pulley 32 is terminating-side upper It is arranged upstream of the end pulley 32a in the transport direction F.

  Therefore, the starting-end-side upper bend pulley 30b of the starting-end-side upper pulley 30 is not vertically aligned with the starting-end-side lower bend pulley 31b of the starting-end-side lower pulley 31 and is more transportable than the starting-end-side lower bend pulley 31b of the starting-end-side lower pulley 31. It is located on the downstream side of F. The terminating side upper bend pulley 32b of the terminating side upper pulley 32 is not vertically aligned with the terminating side lower bend pulley 33b of the terminating side lower pulley 33, and is located in the transport direction F than the terminating side lower bend pulley 33b of the terminating side lower pulley 33. It is located on the upstream side.

  Further, the pulley 13 includes 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 a pulley supporting portion 37 attached to the lower side of the lower frame 21.

  Further, as the belt 14, an endless flat belt is used. The belt 14 includes a starting end side upper pulley 30 (starting end side upper end pulley 30a and starting end side upper bend pulley 30b), a terminal end lower pulley 33 (terminal end lower bend pulley 33b and terminal end lower end pulley 33a), and one take-up pulley 36, After passing through the drive pulley 35, the other take-up pulley 36, the starting end side lower pulley 31 (starting end side lower end pulley 31a and starting end side lower bend pulley 31b), the terminating end side upper pulley 32 (terminating end upper bend pulley 32b and terminating end upper end pulley 32a). , The starting end side upper pulley 30 (the starting end side upper end pulley 30a and the starting end side upper bend pulley 30b) are wound in order so as to return.

  The belt 14 extends from the upper end pulley 30 on the start side (upper bend pulley 30b on the start side) to the lower pulley 33 on the end side (lower bend pulley 33b on the end side) in the conveying direction F while twisting 180 ° clockwise, for example. The first reversing belt portion 40 is formed so as to be reversed, and the conveying direction F extends from the lower end pulley 31 on the starting end side (lower bend pulley 31b on the starting end side) to the upper pulley 32 on the terminal end side (upper bend pulley 32b on the terminal end side). A second reversing belt portion 41 whose upper and lower surfaces are reversed while being twisted 180 degrees clockwise, for example, is formed. Therefore, when the belt 14 rotates, the first reversing belt portion 40 and the second reversing belt portion 41 face each other and contact each other in the absence of the conveyed object 11, and in the conveying direction F, for example, The upper and lower surfaces are inverted while twisting 180 ° clockwise.

  Further, the motor 15 rotationally drives the drive pulley 35 to rotate the belt 14 so that the first reversing belt unit 40 and the second reversing belt unit 41 move in the transport direction F. Instead of using the motor 15, a motor pulley (motor roller) having a built-in motor in the drive pulley 35 may be used.

  Further, the meandering prevention mechanism 16 supports from the lower surface side the first reversing belt portion 40 which is inclined in the width direction in the vicinity of the terminal end in the transport direction F. 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 into a plurality of parts in the axial direction of the support shaft 54 and are rotatably provided independently of each other. The support shaft 54 is supported on the upper surface of the support portion 51 by a plurality of support members 56. A plurality of rotating parts 55 and a plurality of spacers 57 interposed between the adjacent rotating parts 55 are inserted into the support shaft 54, and the rotating parts 55 at both ends are locked by retaining rings (not shown). ing. The rotating portion 55 includes a bearing 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) that are long in 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 portion 51 and both sides of the frame 12 so that their positions can be adjusted, and the angle between the support portion 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 of the blade portions 60 of the hinge 52 is fixed to the support portion 51 by a fixture 63 that is inserted through a long hole at the end of the support portion 51. The 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 long hole 64 that is long in the vertical direction 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 that is inserted through the long hole 64. In the side frame 22 on one side, a long hole 64 is formed in the fixed side frame portion 25, and the other blade portion 61 of the hinge 52 is fixed by a fixture 63 that is inserted through the long hole 64. As the fixture 63, for example, bolts and nuts are used.

  Further, in the meandering prevention mechanism 16, the support shaft 54 is inclined corresponding to the inclination in the width direction of the first reversing belt portion 40 in the vicinity of the terminal end side in the transport direction F, and the plurality of rotating portions 55 are arranged in the first rotation portion 55. The reversing belt part 40 is supported by contacting the lower surface side. 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, in the vicinity of the terminal end side in the transport direction F, the first reversing belt portion 40 of the belt 14 extends in the width direction of the first reversing belt portion 40 in the transport direction F. Is inclined so that the right side is high and the left side is low, and correspondingly, the right end side of the support shaft 54 is high and the left end side is low. Further, the axial direction of the support shaft 54 is parallel to the direction orthogonal to the transport direction F.

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

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

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

  The transport device 10 is installed, for example, between the upstream conveyor and the downstream conveyor in the transport direction F of the transported object 11. Then, the transfer device 10 reverses the upper and lower surfaces of the transfer object 11 while transferring the transfer object 11 sent from the upstream conveyor, and sends out the transfer object 11 to the downstream conveyor.

  In the carrying device 10, the belt 14 is rotated by the driving of the motor 15, and the first reversing belt part 40 and the second reversing belt part 41 move in the carrying direction F while facing each other and are directed in the carrying direction F. The upper and lower surfaces are inverted while twisting 180 degrees.

  The conveyed article 11 conveyed by the upstream conveyor is received between the first reversing belt section 40 and the second reversing belt section 41, and the first reversing belt section 40 and the second reversing belt section 41. The conveyance object 11 is sandwiched between and and conveyed in the conveyance direction F.

  At this time, the starting end side upper bend pulley 30b of the starting end side upper pulley 30 is arranged to be displaced downstream of the starting end side lower bend pulley 31b of the starting end side lower pulley 31 in the transport direction F. Since the space between the bend pulley 30b and the starting end side lower bend pulley 31b of the starting end side lower pulley 31 is also widened, the first reversing belt portion 40 is temporarily placed in a state where a plurality of conveyed articles 11 are overlapped from the upstream side conveyor. And the second reversing belt portion 41, the conveyed article 11 located on the lower side precedes and passes over the starting end side lower bend pulley 31b of the starting end side lower pulley 31 and passes over the starting end side upper pulley 31b. By entering below the starting end side upper bend pulley 30b, the conveyed object 11 pushes down the second reversing belt portion 41 and starts the starting end side upper bend pulley 30b and the starting end side lower pulley 31 of the starting end side upper pulley 30. Pass it between the lower side bend pulley 31b. It is possible to prevent the jamming of the conveyed object 11 by making it possible.

  The first reversing belt unit 40 and the second reversing belt unit 41 move in the conveying direction F while facing each other, and the upper and lower surfaces are reversed while being twisted by 180 ° in the conveying direction F, so that the conveyed object 11 is conveyed. The upper and lower surfaces of the conveyed object 11 are reversed while being conveyed in the conveying direction F.

  The conveyed product 11 whose upper and lower surfaces are reversed is sent out from between the first reversing belt unit 40 and the second reversing belt unit 41 to the downstream conveyor.

  At this time, the end-side upper bend pulley 32b of the end-side upper pulley 32 is displaced from the end-side lower pulley 33b of the end-side lower pulley 33 upstream of the end-side lower pulley 33b in the transport direction F. Since the gap between the bend pulley 32b and the terminal side lower bend pulley 33b of the terminal side lower pulley 33 is also widened, it is assumed that a plurality of conveyances between the first reversing belt portion 40 and the second reversing belt portion 41 are performed. Even if the articles 11 are conveyed in a state of being overlapped with each other, when the conveyed articles 11 pass below the terminal side upper bend pulley 32b of the terminal side upper pulley 32, the second reversing belt portion 41 is pushed up while the object 11 is conveyed upward. The upper bend pulley 32b on the terminating side of the pulley 32 and the lower bend pulley 33b on the terminating side of the lower pulley 33 on the terminating side can be passed, and the jamming of the conveyed object 11 can be prevented.

  The belt 14 meanders when the conveyed object 11 is conveyed, but the meandering prevention mechanism 16 suppresses the meandering of the belt 14. As for the meandering of the belt 14, since the belt 14 is twisted by 180 ° and attached to the conveyor (wrapped around the pulley), when the conveyed product 11 passes through the belt 14, the tension of the belt 14 applied to the pulley is increased. It is considered to occur because the left and right are different.

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

  When the conveyed article 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. Although it inverts while twisting 180 ° and reaches the terminal-side lower pulley 33 and the terminal-side upper pulley 32, since the tensions on both sides in the width direction of the first reversing belt portion 40 and the second reversing belt portion 41 are substantially equal, the meandering Without reaching the end side lower pulley 33 and the end side upper pulley 32 to the central position in the axial direction.

  A process in which the first reversal belt unit 40 and the second reversal belt unit 41 sandwich the conveyed product 11 at a time of conveyance of the conveyed product 11 to widen the space, and invert while twisting 180 ° in the conveying direction F. Then, the end side lower pulley 33 and the end side upper pulley 32 appear as a movement that opens left and right in the axial direction. In the present embodiment, the first reversing belt unit 40 and the second reversing belt unit 41 are reversed while being twisted clockwise by 180 ° in the conveying direction F, so that the first reversing belt unit 40 is conveyed in the conveying direction. The meandering direction w1 which is the right direction with respect to F meanders, and the second reversing belt part 41 meanders in the meandering direction w2 which is the left direction with respect to the conveyance direction F, and as a result, the first reversing belt part 40. And, the terminal side of the second reversing belt portion 41 appears as a motion of opening left and right in the axial direction of the terminal side lower pulley 33 and the terminal side upper pulley 32.

  In the vicinity of the terminal end side in the transport direction F (the position where the meandering prevention mechanism 16 is arranged), the first reversing belt portion 40 located below the second reversing belt portion 41 and inclined in the width direction is It is pressed downward by the second conveyor belt portion 41 via the conveyed object 11, and is easily bent downward due to the influence of the weight of the first reversing belt portion 40, the weight of the conveyed object 11, and the like. As the first reversing belt portion 40 bends downward in this way, the balance of tension on both sides in the width direction of the first reversing belt portion 40 is disturbed, and the traveling direction of the first reversing belt portion 40 is the conveying direction F. The first reversal belt portion 40 is likely to meander in the meandering direction w1 due to the deviation. 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 meandering amount in the meandering direction w1 is larger than the meandering amount in the meandering direction w2 of the second reversing belt part 41, and a large difference occurs in the meandering amount between the first reversing belt part 40 and the second reversing belt part 41.

  In this way, when the first reversing belt portion 40 meanders more than the second reversing belt portion 41 and the difference in the amount of meandering between the first reversing belt portion 40 and the second reversing belt portion 41 is large, The position of the conveyed product 11 in the width direction of the first reversal belt unit 40 and the second reversal belt unit 41 is displaced, the conveyed product 11 is dropped, or the conveyed product 11 is stagnant and jamming easily occurs. Furthermore, the meandering first reversing belt portion 40 and the second reversing belt portion 41 return to their original positions after the conveyance of the conveyed object 11, but when the conveyed object 11 is continuously conveyed, the meandered first reversed belt portion 40 Before the belt portion 40 and the second reversing belt portion 41 return to their original positions after the conveyance of the conveyed article 11, the next conveyed article 11 comes and the first reversal belt portion 40 and the second reversal belt portion By continuing the meandering state of 41, the position of the conveyed product 11 shifts, the conveyed product 11 falls off, or the conveyed product 11 becomes stagnant and easily jams. Therefore, it is difficult to continuously convey the conveyed objects 11, and the conveying ability is low.

  On the other hand, when the meandering prevention mechanism 16 is provided, since 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 transport direction F, the first reversing belt portion 40 moves downward. The first reversing belt is configured to suppress the flexure, improve the balance of tension on both sides in the width direction of the first reversing belt unit 40, and direct the traveling direction of the first reversing belt unit 40 to the conveyance direction F. The part 40 is suppressed from meandering 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 as compared with the case where the meandering preventing 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 plurality of rotating portions 55 slightly lift the first reversing belt portion 40 from the lower surface side. By supporting the first reversal belt portion 40, it is possible to prevent the first reversal belt portion 40 from bending downward, improve the balance of tensions on both sides in the width direction of the first reversal belt portion 40, and advance the first reversal belt portion 40. The effect of directing the direction to the transport direction F is improved, and the meandering amount of the first reversing belt portion 40 is further reduced.

  Thus, the meandering of the first reversing belt portion 40 is suppressed, and the difference in the meandering amount between the first reversing belt portion 40 and the second reversing belt portion 41 is small, so that the first reversing belt portion 40 The position of the conveyed product 11 in the width direction of the second reversing belt portion 41 is prevented from being displaced, the conveyed product 11 is dropped, and the conveyed product 11 is prevented from being stagnant and jammed. Then, by preventing the positional deviation of the conveyed product 11, the conveyed product 11 is sent out from the terminal side of the conveying device 10 to a downstream conveyor from a constant position in the center of the width direction. The processing can be stabilized.

  Further, in the case where the conveyed product 11 is continuously conveyed, the next conveyed product 11 is conveyed before the meandering first reversing belt unit 40 and the second reversing belt unit 41 return to their original positions after the conveyance of the conveyed product 11. May occur and the first reversing belt unit 40 and the second reversing belt unit 41 continue to meander, but the meandering of the first reversing belt unit 40 is suppressed, Due to the small difference in the meandering amount between the reversing belt unit 40 and the second reversing belt unit 41, the position of the conveyed product 11 may be displaced, the conveyed product 11 may drop, or the conveyed product 11 may become stagnant and jam. To be prevented. Therefore, the transfer device 10 can continuously transfer the transfer object 11, and the transfer capability is improved.

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

  For example, instead of the plurality of rotating parts 55, one integral rotating part (pulley) which is not divided in the axial direction may be used, but the integral rotating parts are simply replaced at the positions of the plurality of rotating parts 55. There is a case that the anti-meandering effect cannot be obtained only by playing. This is because the first reversing belt portion 40 contacts the first reversing belt portion 40 in a continuous line along the axial direction of the one-piece rotating portion, so the inclination at the contact position of the first reversing belt portion 40 with which the one-piece rotating portion contacts Due to the difference in friction, speed, and the like, the traveling direction of the first reversing belt unit 40 is likely to point upward in the tilting direction of the first reversing belt unit 40 in the inclined state, and the meandering direction w1 of the first reversing belt unit 40 is increased. The meandering to may be promoted.

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

  Further, even in the case of the integral rotating portion, depending on the adjustment of the position of the integral rotating portion, it may be possible to support the first inversion belt portion 40 while maintaining the meandering prevention effect of the first inversion belt portion 40. However, it may be difficult to adjust the position of the integrated rotary unit, and it may be difficult to deal with various kinds of conveyed objects 11.

  By using the plurality of rotating portions 55 that are divided in the axial direction of the support shaft 54, each rotating portion 55 supports the first reversing belt portion 40 at a point, and thus each rotating portion 55 is connected to the first reversing belt portion 40. Even if there is a slight deviation in the angle of supporting the first reversing belt portion 40, the influence on the traveling method of the first reversing belt portion 40 is small, the position of each rotating portion 55 can be easily adjusted, and it corresponds to various kinds of conveyed objects 11. You can also do it.

  Further, 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 positions of one of the blade portions 60 of the hinges 52 at both ends can be adjusted by the long holes of both ends of the support portion 51, and the mounting positions 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 blade portions 60 and 61 of the hinge 52 is also adjustable, so that the tilt angle and height of the support shaft 54 and the rotating portion 55 between the side frames 22 and 23 can be adjusted. Can be done arbitrarily and easily.

  When the belt 14 is deteriorated or damaged, the belt 14 is replaced. When exchanging the belt 14, the bolts that fix 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 opened and rotated by the hinge 26, so that Open the side. In this state, the upper frame 20, the starting end upper end pulley 30a of the starting end side upper pulley 30, the starting end upper bend pulley 30b, the starting end lower bend pulley 31b of the starting end lower pulley 31, the terminal end upper end pulley 32a of the terminal end 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 with one side of the frame 12 open.

  At this time, the meandering prevention mechanism 16 is attached between the side frames 22 and 23 on both sides, but on the side frame 22 side on one side, the meandering prevention mechanism 16 is attached to the fixed side frame portion 25. The belt 14 can be replaced without removing it.

  As described above, since the transport device 10 of the present embodiment includes the meandering prevention mechanism 16 that supports the first reversing belt portion 40 from the lower surface side in the vicinity of the end side in the transport direction F, the belt generated when the transport object 11 is transported. It is possible to suppress the meandering of 14 and stably and continuously convey the conveyed object 11, and to improve the conveying ability.

  Further, the meandering prevention mechanism 16 is provided with a plurality of rotating parts 55 which are divided into a plurality of parts in the axial direction of the support shaft 54 and are rotatable independently of each other, and the support shaft 54 is the first reversing belt part. Since the plurality of rotating portions 55 are inclined corresponding to the inclination of 40 and support the first reversing belt portion 40 from the lower surface side, the first reversing belt portion 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 inclination, friction, speed, etc. at the contact point of the first reversing belt portion 40. Since the portion 55 rotates independently, the first reversing belt portion 40 can be supported while maintaining the meandering prevention effect. Moreover, even if there is a slight deviation in the angle or the like at which the rotating portions 55 support the first reversing belt portion 40, there is little effect on the traveling method of the first reversing belt portion 40. It is easy to adjust and can handle a wide variety of goods 11.

  Further, in the meandering prevention mechanism 16, the hinges 52 are attached to both end portions of the support portion 51 supporting the support shaft 54 so as to be positionally adjustable along the longitudinal direction, and 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, it is possible to arbitrarily and easily adjust the inclination angle and the height position of the support shaft 54.

  Further, since the side frame 22 on one side is rotatably provided with the hinge 26 on the fixed side frame portion 25 by the hinge 26, the open / close side frame portion 27 is rotated to fix the one side of the frame 12 to one side. By opening the belt 14, 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 attached to the fixed side frame portion 25 on the side frame 22 side, so the meandering prevention mechanism 16 is removed. Without this, the belt 14 can be replaced.

  Further, the starting end side upper bend pulley 30b of the starting end side upper pulley 30 is arranged on the downstream side in the transport direction F from the starting end side upper end pulley 30a, and the terminating side upper bend pulley 32b of the terminating end side upper pulley 32 is terminating side upper side. Since it is arranged on the upstream side of the end pulley 32a in the conveyance direction F, even if a plurality of conveyed articles 11 are conveyed in an overlapping state, they are between the start side upper pulley 30 and the start side lower pulley 31, and the end side. Between the upper pulley 32 and the lower pulley 33 on the terminal side, it is possible to prevent the conveyed article 11 from being jammed.

  The starting-side lower bend pulley 31b of the starting-side lower pulley 31 is also arranged downstream of the starting-side lower end pulley 31a in the transport direction F, and the terminating-side lower bend pulley 33b of the terminating-side lower pulley 33 is also terminated. You may arrange | position in the upstream of the conveyance direction F rather than the side lower end pulley 33a. In this case, the start-end-side upper bend pulley 30b and the start-end-side lower bend pulley 31b, and the end-side upper bend pulley 32b and the end-side lower bend pulley 33b may be arranged side by side in the vertical direction, or may be arranged in the downstream of the transport direction F. It may be arranged so as to be shifted to the side or the upstream side.

  Further, the axial direction of the support shaft 54 is not limited to be parallel to the direction orthogonal to the transport direction F, and the transport direction F may be set so that the traveling direction of the first reversing belt portion 40 is directed to the transport direction F. It may be inclined with respect to a direction orthogonal to. In this case, the support portion 51 and the hinge 52 may be fixed to each other by, for example, one fixing tool 63 so that the rotation can be adjusted.

  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-mentioned 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 the modification thereof have been described above, the embodiment and each modification can be appropriately combined without departing from the scope of the present invention.

10 Conveyor
11 Transported items
12 frames
14 belt
16 Meandering prevention mechanism
22,23 Side frame
25 Fixed side frame
27 Opening / closing side frame part
30 Starting side upper pulley
30a Starting end side upper end pulley
30b Starting side upper bend pulley
31 Starting end side lower pulley
32 Terminal side upper pulley
32a End side upper end pulley
32b Terminal side upper bend pulley
33 Terminal side lower pulley
40 First inversion belt section
41 Second reversing belt section
51 Support
52 hinges
54 spindle
55 Rotating part F Transport direction

Claims (5)

A starting-end-side upper pulley and a starting-end-side lower pulley that are vertically arranged on the starting end side in the carrying direction for carrying a conveyed object;
A terminal-side upper pulley and a terminal-side lower pulley that are arranged vertically on the terminal side in the transport direction,
The starting end side upper pulley, the terminating end side lower pulley, the starting end side lower pulley, and the terminating end side upper pulley are sequentially wound around so as to return to the starting end side upper pulley, and from the starting end side upper pulley to the terminating side. A first reversing belt portion whose upper and lower surfaces are reversed while being twisted with respect to the transport direction is formed over the lower pulley, and in the transport direction from the start end side lower pulley to the end side upper pulley. A second reversing belt portion whose upper and lower surfaces are reversed while being twisted with respect to one another is formed, and the conveyance object is conveyed while sandwiching the conveyance object between the first reversing belt portion and the second reversing belt portion. An endless belt that reverses the upper and lower surfaces of the
And a meandering prevention mechanism that supports the first reversing belt portion from the lower surface side in the vicinity of the terminal end 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 conveyance direction and a starting-end side of the first reversing belt portion arranged downstream of the starting-end-side upper end pulley in the conveyance direction. Has a top end side bend pulley to be formed,
The terminating side upper pulley is disposed on the terminating side upper end pulley arranged on the terminating side in the conveying direction and on the terminating side of the second reversing belt portion arranged on the upstream side in the conveying direction with respect to the terminating side upper end pulley. The transfer device according to claim 1, further comprising: an end side upper bend pulley formed. The meandering prevention mechanism includes a support shaft and a plurality of rotating portions that are divided into a plurality of parts in the axial direction of the support shaft and are rotatably provided independently of each other. The transport device according to claim 1 or 2, wherein the plurality of rotating portions are tilted in correspondence with a widthwise inclination of the reversing belt portion, and the plurality of rotating portions support the first reversing belt portion from a lower surface side. A frame supporting the starting end side upper pulley, the starting end side lower pulley, the terminal end side upper pulley, and the terminal end side lower pulley;
The meandering prevention mechanism includes a support portion that supports the support shaft, and an angle between the support portion and both sides of the frame, the position being adjustable between both ends of the support portion and both sides of the frame. The conveyance device according to claim 3, further comprising a pair of hinges that can adjust the position. The frame includes side frames on both sides to which the hinge of the meandering prevention mechanism is attached,
The one side frame has a fixed side frame part to which one of the hinges is attached, and an open / close side frame part that is rotatably connected to the fixed side frame part and opens and closes a side surface of the frame. The transport device according to claim 4, wherein

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