JP5304312B2 - Article stop device for roller conveyor - Google Patents

Description

  The present invention relates to an article stopping device for a roller conveyor, and more particularly to an article stopping device for a roller conveyor that temporarily stops an article conveyed from the upstream side of conveyance of the roller conveyor on a conveyance surface.

  Conventionally, as an article stopping device for a roller conveyor, as shown in FIG. 7, a plate-like stopper 100 is provided between the conveying rollers R of the roller conveyor C so as to be movable up and down, and this stopper 100 is provided on the conveying surface F of the roller conveyor C. It is known that the article conveyed from the conveyance upstream side is stopped by being raised upwards, while the article is allowed to pass by lowering the stopper 100 below the conveyance surface F (for example, the following) (See Patent Documents 1 and 2).

Japanese Patent Laid-Open No. 11-263412 JP 2002-120916 A

  However, these conventional article stopping devices, as shown in FIG. 8, if the article B1 to be passed through the stopper 100 is still above the stopper 100 and the stopper 100 is raised, B1 is caught by the stopper 100, and for example, there is a problem that it is difficult to perform an article cutting operation or the like.

  Therefore, conventionally, when a plurality of articles are conveyed by the roller conveyor C, as shown in FIG. 7, between the preceding article B1 that should pass through the stopper 100 and the subsequent article B2 that should be stopped by the stopper 100. The predetermined distance d for raising and lowering the stopper 100 in a non-contact state has to be ensured, and there is a problem in that the conveyance capacity of the roller conveyor C is lowered accordingly.

  The present invention has been made in view of the above-described difficulties in the conventional roller conveyor article stopping device. Even if the stopper is raised before the article passes, the article is caught by the stopper. Therefore, an object of the present invention is to provide an article stopping device for a roller conveyor that can reliably send out to the downstream side of conveyance.

The present invention is an article stopping device for a roller conveyor that is provided in a conveyance path of a roller conveyor and temporarily stops an article conveyed from the conveyance upstream side of the roller conveyor on the conveyance surface, and the conveyance surface of the roller conveyor Is provided so as to be able to move up and down with respect to the conveyance surface, and comes into contact with an article conveyed from the conveyance upstream side to stop the article, and is at the same height as the conveyance surface or from the conveyance surface. And a roller body provided on the downstream side of conveyance of the stopper, when the stopper is raised above the conveyance surface of the roller conveyor. When the upper part of the peripheral surface of the body is located above the upper end of the stopper and the stopper is lowered at the same height as the transport surface or below the transport surface, the roller body A feed roller that moves up and down between the upper surface of the transport surface and a lower position positioned below the transport surface; and a rotation driving means that rotationally drives the feed roller. It is said. In particular, the feed roller is pivotally supported by a support member fixed to the stopper, and moves up and down together with the stopper, and the rotation driving means is pivotally supported by the support member below the feed roller. An intermediate pulley that moves up and down together with the rollers, a drive pulley provided on a line shaft that is disposed along the transport path of the roller conveyor and drives the transport rollers of the roller conveyor, the delivery roller, and the intermediate pulley. It is characterized by being comprised from the 1st transmission member spanned between and the 2nd transmission member spanned between the said intermediate | middle pulley and the said drive pulley.

  In the present invention, the support pulley is pivotally supported so that the drive pulley is positioned on a virtual plane that vertically bisects a line segment connecting the rising position and the falling position of the intermediate pulley. It is characterized by being.

  According to the article stopping device for a roller conveyor according to claim 1 of the present invention, even if the preceding article to be passed through the stopper is still present above the stopper, it is driven and rotated even if the stopper is raised. The preceding article can be reliably delivered to the downstream side of conveyance by the delivery roller, and the preceding article is not caught by the stopper. Then, the succeeding article can be brought into contact with the raised stopper, and the succeeding article can be surely stopped.

  Therefore, when a plurality of articles are transported by a roller conveyor, the interval between the preceding article to be passed through the stopper and the succeeding article to be stopped by the stopper is not necessarily in contact with each article. Therefore, even if there is no space between the preceding article and the succeeding article, the cutting work of the preceding article can be performed reliably. Therefore, unlike the prior art, there is no difficulty in causing a decrease in the conveying capability of the roller conveyor.

Further, according to the article stopping apparatus according to claim 1 , since the delivery roller is pivotally supported by the support member fixed to the stopper, the delivery roller can be moved up and down by the raising and lowering driving means of the stopper, and the apparatus configuration Simplification and cost reduction can be achieved.

Further, according to the article stop device according to claim 1, directly driving force of the line shafts of the roller conveyor, rather than transmitted to the feed roller, the first transmission member via the intermediate pulley which is provided below the delivery roller Since the transmission is transmitted by the second transmission member, the rotational driving force of the line shaft can be more stably transmitted to the delivery roller even if the delivery roller moves up and down.

According to the article stopping device of the second aspect , the drive pulley of the line shaft is configured to be positioned on a virtual plane that bisects a line segment connecting the rising position and the lowering position of the intermediate pulley. Therefore, there is almost no fluctuation in the tension of the first transmission member and the second transmission member during the raising and lowering operation of the delivery roller, and the rotational driving force of the line shaft can be more stably transmitted to the delivery roller. And stable and smooth article stopping operation.

It is a schematic side view of the state which raised the stopper and delivery roller of the article | item stop apparatus of the roller conveyor of this embodiment. It is a schematic side view of the state which lowered | hung the stopper and delivery roller of the article | item stop apparatus of the roller conveyor of this embodiment. It is a schematic front view of the article | item stop apparatus of the roller conveyor of this embodiment. It is a schematic side view explaining the operating state of the article | item stop apparatus of the roller conveyor of this embodiment. It is a schematic side view explaining the operating state of the article | item stop apparatus of the roller conveyor of this embodiment. It is a schematic side view of the implementation modification of the article | item stop apparatus of the roller conveyor which concerns on this invention. It is a schematic side view which shows the operation state of the article | item stop apparatus of the conventional roller conveyor. It is a schematic side view which shows the operation state of the article | item stop apparatus of the conventional roller conveyor.

  As shown in FIGS. 1 to 5, the roller conveyor article stopping device 10 according to the present embodiment is provided in the conveyance path of the roller conveyor C, and conveys articles conveyed from the conveyance upstream side of the roller conveyor C to the conveyance surface F. It is to be paused above.

  As shown in FIGS. 1 to 3, the roller conveyor C includes a known line shaft driven roller conveyor, and a large number of rod-shaped transport rollers R, R, and R between a pair of conveyor frames W extending in the article transport direction. Are supported in parallel with each other, and below these transport rollers R, a line shaft S driven by a motor (not shown) extends along the transport path. A large number of conveying rollers R are connected to the line shaft S via the endless transmission member T and are driven to rotate by the line shaft S, whereby the articles on the conveying surface F composed of the large number of conveying rollers R. Transport.

  As shown in FIGS. 1 to 3, the article stopping device 10 according to the present embodiment includes a stopper 1 that can be moved up and down with respect to the conveyance surface F of the roller conveyor C, and a conveyance surface F on the conveyance downstream side of the stopper 1. And a rotation driving means 3 that rotationally drives the delivery roller 2.

  The stopper 1 is formed in a long plate shape along the machine width direction of the roller conveyor C, and is provided between the conveying rollers R of the roller conveyor C so as to be movable up and down while being parallel to the axis of the conveying roller R. Yes. That is, a fixed frame 12 is bolted below the conveyor frame W of the roller conveyor C, and an air cylinder 13 serving as an actuator is disposed on the fixed frame 12, and an upper end portion of an advance / retreat rod 131 of the air cylinder 13 is disposed. The stopper 1 is fixed.

  Thus, by moving the forward / backward rod 131 of the air cylinder 13 forward and backward, the stopper 1 is moved to the raised position (see FIG. 1) where the upper end 11 is located above the transport surface F, and the upper end 11 is transported. It is possible to appropriately move up and down between a lowered position (see FIG. 2) located below the surface F. The stopper 1 may be lowered to the lowered position where the upper end portion 11 is located at the same height as the conveying surface F by retracting the advance / retreat rod 131 of the air cylinder 13.

  The feed roller 2 is formed in substantially the same shape as the transport roller R of the roller conveyor C, and is provided on the downstream side of the stopper 1 so as to be able to move up and down while being parallel to the axis of the transport roller R. The delivery roller 2 of this embodiment is pivotally supported by a pair of support members 22A and 22B fixed to the side surface of the stopper 1 on the downstream side of conveyance. As a result, the feed roller 2 moves up and down together with the stopper 1 in accordance with the forward and backward movement of the air cylinder 13.

  Further, the feed roller 2 is pivotally supported by the support members 22A and 22B so that the upper peripheral surface 21 of the roller body is located above the upper end portion 11 of the stopper 1. Therefore, the feeding roller 2 of the present embodiment is such that when the stopper 1 is raised above the conveying surface F of the roller conveyor C, the upper circumferential surface 21 is located at a position higher than the upper end portion 11 of the stopper 1. (See FIG. 1) and when the stopper 1 is lowered below the conveying surface F, the upper and lower surfaces 21 are moved up and down (see FIG. 2) at the same height as the conveying surface F. I do. In addition, you may make it descend | fall until both the upper end part 11 of the stopper 1 and the surrounding surface upper part 21 of the sending roller 2 are located below the conveyance surface F by retracting the advance / retreat rod 131 of the air cylinder 13. .

  The rotation driving means 3 rotates the delivery roller 2 using the driving force of the line shaft S of the roller conveyor C. As shown in FIG. 3, the rotational drive means 3 of the present embodiment includes an intermediate pulley 31 that is pivotally supported by the support member 22 </ b> B below the feed roller 2, and a drive pulley 32 that is provided on the line shaft S of the roller conveyor C. And a first transmission member 33 formed of an endless round belt suspended in the vertical direction between the feed roller 2 and the intermediate pulley 31, and a substantially horizontal direction (roller between the intermediate pulley 31 and the drive pulley 32). And a second transmission member 34 composed of an endless round belt stretched in the machine width direction of the conveyor C). Thus, the rotation driving means 3 transmits the driving force of the line shaft S of the roller conveyor C in the order of the driving pulley 32, the second transmission member 34, the intermediate pulley 31, and the first transmission member 33, and the delivery roller 2 Is driven to rotate.

  Further, since the intermediate pulley 31 of the rotation driving means 3 is pivotally supported by the support member 22B that pivotally supports the delivery roller 2, the intermediate pulley 31 is provided with the stopper 1 and the delivery according to the advance / retreat operation of the air cylinder 13. The roller 2 is moved up and down together. Further, the intermediate pulley 31 is arranged such that the drive pulley 32 of the line shaft S is positioned on a virtual plane P that bisects a line segment LS connecting the rising position U and the lowering position D of the intermediate pulley 31. The pivot support position is determined. Therefore, the article stopping device 10 of the present embodiment has almost no fluctuation in the tension of the first transmission member 33 and the second transmission member 34 of the rotation driving means 3 at the ascending position and the descending position of the delivery roller 2 for a long time. Thus, the delivery roller 2 can be driven to rotate stably and smoothly.

  According to the article stopping device 10 of the present embodiment configured as described above, as shown in FIG. 4, when the preceding article B1 to be passed through the stopper 1 is still above the stopper 1, Even if the stopper 1 is raised so as to stop the subsequent article B2, as shown in FIG. 5, the preceding article B1 can be reliably sent downstream by the delivery roller 2 which is driven to rotate, and the preceding article B1. Is not caught by the stopper 1. Then, the succeeding article B2 can be brought into contact with the raised stopper 1 to reliably stop the succeeding article B2.

  Therefore, according to the article stopping device 10 of the present embodiment, when a plurality of articles are transported by the roller conveyor C, between the preceding article B1 that should pass the stopper 1 and the subsequent article B2 that should be stopped by the stopper 1. It is not always necessary to provide an interval for raising and lowering the stopper 1 in a contactless manner with respect to each article. As shown in FIG. 4, even if there is no gap between the preceding article B1 and the succeeding article B2, The cutting operation of the article B1 can be reliably performed. Thus, since it is not necessary to ensure a space | interval between articles | goods, there is no difficulty which causes the fall of the conveyance capability etc. of the roller conveyor C like the past.

  Further, since the article stopping device 10 according to the present embodiment pivotally supports the delivery roller 2 on the support member 22B fixed to the stopper 1, the delivery roller 2 is lifted and lowered by the air cylinder 12 which is a lifting drive means for the stopper 1. It can be operated, and the apparatus configuration can be simplified and the cost can be reduced.

  Further, the article stopping device 10 according to the present embodiment does not directly transmit the driving force of the line shaft S of the roller conveyor C to the delivery roller 2 but via the intermediate pulley 31 provided below the delivery roller 2. Since the transmission is performed by the one transmission member 33 and the second transmission member 34, the rotational driving force of the line shaft S can be more stably transmitted to the delivery roller 2 even if the delivery roller 2 moves up and down.

  Moreover, since the drive pulley 32 of the line shaft S is configured to be positioned on the virtual plane P that bisects the line LS connecting the rising position U and the lowering position D of the intermediate pulley 31 vertically, There is almost no fluctuation in tension of the first transmission member 33 and the second transmission member 34 during the raising / lowering operation of the roller 2, and the rotational driving force of the line shaft S can be transmitted to the delivery roller 2 more stably. And stable and smooth article stopping operation.

  The roller conveyor article stopping device 10 of the present embodiment has been described above, but the present invention can be implemented in other forms.

  For example, in the above-described embodiment, one delivery roller 2 is provided on the conveyance downstream side of the stopper 1, but the present invention is not limited to this. For example, an article stopping device 20 shown in FIG. In addition, a plurality of delivery rollers 4, 4 may be arranged in the conveyance direction of the roller conveyor C on the downstream side of the conveyance of the stopper 1. As a result, the output power of the article by the delivery roller can be increased. Further, the delivery roller may be composed of a plurality of rollers arranged in the machine width direction of the roller conveyor C.

  In the above-described embodiment, the feed roller 2 is moved up and down by the air cylinder 12 which is the lift drive means of the stopper 1. However, the feed roller 2 may be lifted and lowered by a lift drive means different from the air cylinder 12. Good.

  Moreover, in the said embodiment, although the stopper 1 and the sending roller 2 are linearly moved up and down (parallel movement), the rocking | fluctuation mechanism which has a fulcrum in the required position of the conveyance upstream of the roller conveyor C or a conveyance downstream, for example Thus, the stopper 1 and / or the delivery roller 2 may be configured to move up and down in a circular arc.

  The present invention can be implemented in variously modified, modified, and modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention. It may be implemented in a form in which any invention specific matter is replaced with another technology within a range where the same action or effect occurs, or the invention specific matter configured integrally may be constituted by a plurality of members. In addition, the invention specific items constituted by a plurality of members may be implemented in an integrated configuration.

10, 20 Roller conveyor article stopping device 1 Stopper 11 Upper end 2 of stopper 4, 4 Feeding roller 21 Upper peripheral surface 22A, 22B of feeding roller Support member 3 Rotation drive means 31 Intermediate pulley 32 Drive pulley 33 First transmission member 34 First Two transmission members U Lift position D of the intermediate pulley Lower position LS of the intermediate pulley Line P connecting the lift position and the lower position of the intermediate pulley Virtual plane C that equally bisects the line segment LS C Roller conveyor F Transport surface R Transport roller S Line shaft B1, B2 Goods

Claims (2)

An article stopping device for a roller conveyor that is provided in a conveyance path of a roller conveyor and temporarily stops an article conveyed from the conveyance upstream side of the roller conveyor on a conveyance surface,
It is provided so that it can be raised and lowered with respect to the conveyance surface of the roller conveyor, and when it rises above the conveyance surface, it comes into contact with the article conveyed from the conveyance upstream side to stop the article, and the same height as the conveyance surface Or a stopper that allows the article to pass through when it is lowered below the conveying surface;
A roller body provided on the downstream side of conveyance of the stopper, and when the stopper is raised above the conveyance surface of the roller conveyor, the upper peripheral surface of the roller body is located above the upper end of the stopper. When the stopper is lowered at the same height as the transport surface or below the transport surface, the upper peripheral surface of the roller body is at the same height as the transport surface or below the transport surface. A feeding roller that moves up and down between the lowered position located at
Rotation driving means for rotating the delivery roller;
Equipped with a,
The delivery roller is pivotally supported by a support member fixed to the stopper, and moves up and down together with the stopper.
The rotation driving means;
An intermediate pulley that is pivotally supported by the support member below the feed roller and moves up and down together with the feed roller;
A drive pulley provided on a line shaft disposed along a conveyance path of the roller conveyor and driving a conveyance roller of the roller conveyor;
A first transmission member spanned between the delivery roller and the intermediate pulley;
A second transmission member spanned between the intermediate pulley and the drive pulley;
It characterized that you have been composed and the roller conveyor article stop device. The intermediate pulley is pivotally supported by the support member so that the drive pulley is positioned on a virtual plane that bisects a line segment connecting a rising position and a lowering position of the intermediate pulley. The article stop device for a roller conveyor according to claim 1 .

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