JPH0844U - Accumulation Roller Conveyor - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a belt-driven roller conveyor with a simple structure, capable of reliably accumulating conveyed objects, and having a driving force. [Structure] A large number of drive rollers are pivotally supported on the upper surface of the frame,
In an accumulator conveyor in which each of the rollers is rotated by a drive mechanism arranged in a frame, at least one drive roller is sandwiched in the frame and a pair of front and rear carrier rollers are provided.
A plurality of carrier roller groups each composed of a roller are arranged, and these carrier rollers are rotatably connected to each group by a winding member.

Description

[Detailed description of the device]

[0001]

[Application field for work]

 The present invention relates to a belt-driven roller conveyor, and more particularly to a roller conveyor having an accumulator function.

[0002]

[Prior art]

 As is well known, belt-driven roller conveyors are used to convey and sort various products. This conveyor has a large number of drive rollers pivotally supported on the upper surface of the frame, and the rollers are rotated by a drive belt arranged on the frame, or the lower surface of the frame is orthogonal to the drive rollers. A drive shaft rotatably supported in the direction is connected by a belt, and the drive shaft is rotated by a motor so that this rotation is transmitted to the drive roller by the belt.

[0003]

[Problems to be solved by the device]

 By the way, when the conveyed baggage is stopped and accumulated in the belt-driven roller conveyor, there is no accumulating function, and thus the line pusher of the conveyor may collapse the baggage or the baggage may be damaged.

Therefore, in order to impart an accumulating function, for example, the frictional force of a belt-driving drive ring mounted on the drive shaft is adjusted. However, if the frictional force is reduced, the driving force for rotating the conveyor roller is weakened. The present invention has been made in order to eliminate the above-mentioned problems of the conventional type. The purpose of the present invention is to simplify the structure and reliably accumulate articles to be conveyed, and to drive a belt with a driving force. To provide a roller conveyor.

[0005]

[Means for solving problems]

 In order to achieve the above-mentioned object, the accumulator roller conveyor of the present invention is a drive mechanism in which a large number of drive rollers are pivotally supported on the upper surface of the frame and each of the rollers is arranged on the frame. In an accumulator conveyor that rotates, at least one drive roller is sandwiched in the frame, and a plurality of carrier roller groups consisting of a pair of front and rear carrier rollers are arranged and these carrier rollers are arranged. Each group is rotatably connected by a winding member.

[0006]

[Action]

 In the accumulator conveyor having the above-mentioned structure, when the cargo being conveyed comes into contact with the stopper provided on the conveying surface, the carrier roller in front of the conveyed article is stopped and the winding member is wrapped around the carrier roller. The rear carrier roller connected by is also stopped to prevent the collision and fall of the subsequent luggage.

[0007]

【Example】

 The present invention will be specifically described below based on the illustrated embodiments. FIG. 1 is a plan view showing an embodiment of the present invention with a part omitted, and FIG. 2 is a perspective view with a part of the main part omitted. In the figure, reference numeral 10 is an accumulator conveyor. The accumulator conveyor 10 has a large number of drive rollers 12 axially supported on the upper surfaces of a pair of left and right conveyor frames 11, 11 and a lower surface of the drive rollers 12 axially supported in a direction orthogonal to the drive rollers 12. A plurality of carrier roller groups 14 formed by a pair of front and rear carrier rollers 14a and 14b, which are rotatably supported so as to sandwich the drive shaft 13 and the drive rollers 12, are the main members.

Each drive roller 12 has a groove 15 formed on the peripheral surface of the end portion of the roller, and a round belt 16 is stretched between the groove 15 and a drive shaft 13 described later.

The drive shaft 13 is arranged on the lower surface of the drive roller 12 at a position corresponding to the groove 15 of the drive roller so as to be orthogonal to the drive roller 12. That is, as shown in FIG. 1, a bearing 18 is fixed to the lower surface of a connecting member 17 that connects the conveyor frames 11 and 11, and the bearing 18 is supported by the bearing 18, and then the motor disposed on the frame 11 is supported. It is to be rotated by a drive mechanism (not shown) composed of etc., and a grooved ring 19 is attached to a portion corresponding to the groove 15 of the drive roller 12 as shown in FIG. A round belt 16 is spanned between the grooves 15 and the rotation of the drive shaft 13 is transmitted to the drive roller 12.

As shown in FIGS. 1 and 2, the carrier roller group 14 is composed of carrier rollers 14 a and 14 b which are arranged in front and back with one drive roller 12 interposed therebetween. A plurality of groups are arranged along the transportation direction of the mullet conveyor 10. Each of the carrier rollers 14a and 14b constituting each group has a diameter larger than that of the drive roller 12, and the counter-sending surface is a uniform surface with the drive roller 12, and the carrier rollers 14a, 14b and It is pivotally supported by the conveyor frame 11 so that the drive roller 12 and the drive roller 12 are evenly spaced. Grooves 20a and 20b are provided around the shaft ends of the carrier rollers 14a and 14b, and a round belt 21 is wound around the grooves 20a and 20b in an endless manner. The other rotates following the rotation of 14a and 14b.

Next, the operation of the accumulator roller conveyor 10 having the above structure will be described. First, the drive mechanism is operated by an appropriate switching operation to rotate the drive shaft 13. Since the drive shaft 13 is connected to the drive roller 12 by the round belt 16, the rotation of the drive shaft 13 is transmitted to the drive roller 12 and the drive roller 12 rotates in the load carrying direction. Then, the rotation of the drive roller 12 causes the load G to be conveyed from the upstream side to the downstream side. At this time, the carrier rollers 14a and 14b rotate in the traveling direction of the cargo due to the frictional force with the cargo conveyed by the rotation of the drive roller 12.

Then, for example, the load moving on the transport surface is stored in the accumulator roller conveyor 10 at a portion downstream of the carrier roller group A shown in FIG. 4 (to the right of A in FIG. 4). When it is necessary to stop the sheet, the stopper S arranged in front of the group A is projected onto the transport surface by an operating mechanism (not shown) such as a cylinder. When the stopper S projects to the transport surface, the luggage G is blocked from transporting and stops there. At this time, in the carrier roller group A in FIG. 4, the load G1 is placed on the carrier roller 14a at the center and on the drive roller 12 at the rear end, and on the carrier roller 14b at the rear. The leading end side of the continued luggage G2 is put on, and the drive rollers 12 and 12 continue to rotate. On the other hand, the carrier roller 14a does not rotate because the luggage G1 does not run, and the carrier roller 14b connected to the roller 14a by the round belt 16 also does not rotate. Accordingly, the baggage G1 and the subsequent baggage G2 are stopped on the spot and enter the accumulation rate state.

On the other hand, when the stopper S stopping the load G1 is pushed down and the stopper is released, the load G1 starts traveling by the drive rollers 12 and 12, and at the same time, the carrier roller 14a rotates. To do. By the rotation of the carrier roller 14a, the carrier roller 14b which is connected to the carrier roller 14a by the round belt 16 also restarts its rotation, and by this rotation and the rotation of the drive roller 12 of the carrier roller B group. The luggage G2 also starts running.

Since the accumulator roller conveyor 10 of the present embodiment has the above-mentioned configuration, it is not necessary to add line pressure to the conveyed objects which are stopped and retained forward in the accumulator. Therefore, it is possible to prevent the collision and the fall of the conveyed object and to reliably convey the conveyed object.

In the above embodiment, the carrier roller group consisting of a pair of front and rear carrier rollers is arranged with one driving roller sandwiched between them, but the present invention is not limited to this, and the transported object is not limited to this. Depending on the type and size of the carrier rollers, for example, two or three driving rollers may be sandwiched to form a carrier roller group, and the arrangement and the number of carrier roller groups are not limited to those in the above embodiment. Not something. The wrapping member that connects the carrier rollers is not limited to the round belt, but may be a timing belt, a chain, or the like.

In the above embodiment, the diameters of the carrier rollers 14a and 14b are set to be larger than that of the drive roller 12 in order to prevent the winding round belt 21 from interfering with the drive roller 12. However, as shown in FIG. 5, the drive roller 30 and the carrier rollers 31a and 31b have the same diameter, and the length of the drive roller 30 sandwiched between the carrier rollers 31a and 31b is shortened. Therefore, the interference with the winding round belt 32 may be avoided.

Further, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications and design changes can be made without departing from the spirit of the invention.

[0018]

[Effect of device]

 Since the present invention has the above-mentioned configuration, line pressure is not applied to the conveyed goods that are stopped and accumulated in the front during the accumulator, and the conveyed goods can be prevented from colliding and falling, and reliable conveying is possible. It becomes possible to provide a conveyor. Moreover, since the carrier roller is divided into zones and the rotation is stopped, it is not necessary to adjust the frictional force of the drive ring for accumulating.

[Brief description of drawings]

FIG. 1 is a partially omitted plan view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view showing an embodiment of the present invention.

FIG. 3 is a partially omitted side view showing a drive roller and a carrier roller.

FIG. 4 is an explanatory diagram showing an operating state.

FIG. 5 is a plan view showing a modified example.

[Explanation of symbols]

 10 Accumulator conveyor 11 Conveyor frame 12,30 Drive roller 13 Drive shaft 14 Carrier roller group 14a, 14b, 31a, 31b Carrier roller 15 Belt hook groove 16 Round belt 17 Connecting material 18 Bearing 19 Grooved ring 20 Groove 21, 32 Round belt

Claims (2)

[Scope of utility model registration request] 1. A frame in an accumulator roller conveyor in which a large number of drive rollers are rotatably supported on the upper surface of the frame and each of the rollers is rotated by a drive mechanism arranged in the frame. At least one drive roller is sandwiched between the frames, and a plurality of carrier roller groups consisting of a pair of front and rear carrier rollers are arranged. These carrier rollers are rotated by winding members for each group. An accumulator roller conveyor characterized by being freely connected. 2. The winding member is a round belt.
Accumulation roller conveyor as described.