JPH0567535B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a relatively compact corner drive roller conveyor used for transporting small and lightweight objects.

[Prior Art] A corner drive conveyor is used to convey an object by bending the conveyance direction at right angles, and is often used in combination with a small linear roller conveyor. By the way, this corner conveyor has a relatively complicated structure because it requires combining a large number of rollers with different directions (arrangement directions) to form a conveying surface and driving each of them. For example, separate motors may be arranged for each group of rollers with different orientations (total of three motors are used), or in the case of one motor, a bevel gear or flexible joint may be used to increase the power of the motor. The configuration is such that the information is transmitted to each of the roller groups.

[Problems to be solved by the invention] Since the conventional corner conveyor had the above-mentioned configuration, the mechanism was complicated, and as a result, maintenance and inspection were troublesome, and the cost was high. . Furthermore, since the mechanism was complex, it could cause failures, and there were also problems in terms of durability. Here, the present invention has only one driving motor, and the power of the motor can be transmitted smoothly without using a complicated transmission mechanism using bevel gears etc. as in the conventional type. It has a new configuration.

[Means for Solving the Problems of the Invention] The present invention includes an intermediate roller group disposed obliquely with respect to the traveling direction of the conveyed object between a first roller group and a second roller group disposed perpendicularly to each other. In the corner drive roller conveyor, only one prime mover such as an electric motor is provided below the roller group, at least two transmission shafts are installed parallel to the axis of the intermediate roller group, and the transmission shafts are connected to the motor. At the same time, at least one of the intermediate rollers arranged parallel to the transmission shaft is driven via an appropriate conduction band, and at the same time, one of the two transmission shafts, which is closer in distance, is driven. All or part of the first roller group or the second roller group is driven via a transmission shaft by a conduction band such as a round belt that can be twisted, thereby making the configuration simpler than before. Each roller group can be driven separately and smoothly under the roller.

[Example] In the attached drawings, 1 is a frame constituting the base frame of the conveyor, 2 is a first drive roller group provided on the top surface of the base frame, and the roller axis is oriented in the direction of arrow A in FIG. , arranged at right angles. 3
4 is an intermediate roller group installed at an angle of 45° with respect to the axis of the roller group 2, and 4 is a second roller arranged so that its axis is perpendicular to the axis of the first roller group. It has the function of transporting objects in groups in the direction of arrow B. As shown in FIGS. 2 and 3, two transmission shafts indicated by reference numerals 5 and 6 are arranged parallel to the axis of the intermediate roller group 3 on the lower surface thereof, and tuned wheels 5a and 6a are attached to each of these shafts. At the same time, a chain wheel 7a is also attached to the output shaft of an electric motor 7 installed below the shafts 5 and 6, and a common endless chain 8 is suspended between these three chain wheels. It goes without saying that an appropriate transmission mechanism such as a belt or pulley may be used in place of the chain and chain wheel.

On the other hand, the transmission shaft 5 and the shaft 2 of the intermediate roller 3
As shown in FIG. 2 (the same applies to the other transmission shaft 6), a round belt 9 is stretched between the pulley 10 attached to the end of the transmission shaft 5 to transmit the motion of the transmission shaft 5. Eggplant. Incidentally, in the illustrated embodiment, the rotational force transmitted by the pulley 10 is transmitted to another intermediate roller adjacent thereto via another pulley 11 attached to the shaft 2a and a belt 12 suspended from the pulley. communicated. In other words, the pulley 1 is also connected to the adjacent intermediate roller 31.
3 is attached, and a belt 12 is passed between this pulley and the pulley 11 so that the rotation of the transmission shaft 5 is transmitted to all of the grouped roller groups. The details of this point are clear from FIG. 4, and the figure shows each roller constituting the intermediate roller group 3 (general reference numeral) as an example, but the configuration of this part is different from that of the other roller groups 2. The same applies to and 4. In addition, in FIG. 4, a plurality of rollers 2b, 2c, 2d, etc. are shown divided in the axial direction with respect to the roller shaft 2a, and the roller 2b disposed at the end has unevenness carved on the shaft 2a. 14, while the other roller 2
c, 2d, etc. are in a loosely fitted state to the shaft 2, but it is not necessarily necessary to have this configuration. That is, the rollers other than the roller 2b fixed to the shaft 2a may be configured as a single roller without being divided, or all of the divided rollers may be fixed to the shaft 2a. . Further, the electric motor serving as the power source may be replaced with another prime mover such as an internal combustion engine. Furthermore, as a conduction band that requires twisting, a round belt 15 is shown in the illustrated example, but a flat belt may also be used.

Next, a mechanism for transmitting the rotational force of the transmission shaft 5 to the first drive roller will be explained. When a part of each roller constituting the first drive roller 2 is enlarged and shown in FIG. 5, the first drive roller 21 (main roller)
A drive pulley 10 similar to that described above is also fixed to the shaft end of the first drive roller 22 (follower roller) 22, and a round belt 15 is twisted and stretched between this pulley and the transmission shaft 5. After driving the first drive roller 21 in this way, the driving force of this roller is transferred to another pulley 11 attached adjacent to the pulley 10 and the adjacent first drive roller 21 via the belt 12 passed around this pulley. The information is transmitted to the roller 22. That is, a driven pulley 13 corresponding to the pulley 11 is attached to the shaft end of the drive roller 22, and a belt 12 is passed between this pulley and the drive pulley 11 to transmit power. be. Note that, without providing the above-mentioned transmission mechanism, all the individual rollers constituting the first roller group are connected to a transmission shaft 5 and a round belt 1 suspended from the transmission shaft 5.
It is also possible to directly drive it via 5. This applies not only to the first drive roller group but also to other roller groups.

The transmission mechanism for the second drive roller is also the same as described above, and the transmission shaft 5 in the part explained based on FIGS. 2 and 5 can be read as the transmission shaft 6. The explanation will be omitted.

Since the configuration of the present invention is as described above, when the single electric motor 7 installed on the lower surface of each roller group forming the conveying surface is operated, the chain wheel 7a attached to the output shaft of the single electric motor 7 is activated. The motor driving force is transmitted via the chain 8 to a pair of transmission shafts 5 and 6 shown in FIG. The axes 5 and 6
The rotation is transmitted to the intermediate roller group 3, the first drive roller group 2, and the second drive roller group 4 via the belts 9 and 15, and all of these roller groups are driven at a preset speed to move the conveyed object. It acts to move it in a predetermined direction.

[Effects] As described above, according to the present invention, each of the roller groups having different directions can be driven by a single prime mover, and in this case, a complicated transmission mechanism such as a bevel gear or a flexible joint can be used. Rather, it is possible to transmit rotational force with a simple configuration using a simple belt hook, which not only contributes to the weight reduction of the entire device, but also facilitates maintenance and inspection. Furthermore, the entire structure can be made compact, and in this respect as well, it is useful as a corner conveyor used in combination with a small-sized drive roller conveyor.

In addition, by transmitting the driving force of the prime mover to two conduction shafts to disperse the driving force, and by tensioning the conduction band between the drive shaft and the main roller, the load from the conveyed object is concentrated on a specific conduction band. As a result, the occurrence of failures due to conduction band breakage, etc. can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a corner drive conveyor showing an embodiment of the present invention, with a portion cut away.
FIG. 2 is a cross-sectional view drawn based on the - line in FIG. 1, and FIG. 3 is a side view of the drive unit in this device.
FIG. 4 is an enlarged cross-sectional view of the shaft end of the intermediate roller, and FIG. 5 is a partial plan view showing a mechanism for transmitting the rotation of the transmission shaft to the first drive roller group. 1: Frame, 2: First (drive) roller group,
3: intermediate roller group, 4: second (drive) roller group,
5, 6: Transmission shaft, 7: Prime mover, 8: Chain, 9,
13: belt, 10, 12: pulley, 14: uneven portion, 15: round belt, 21: first drive roller (main roller), 22: first drive roller (follower roller).

Claims (1)

[Claims] 1. An intermediate roller group is provided between a first roller group and a second roller group arranged orthogonally to each other,
A corner drive roller conveyor in which the intermediate roller group is arranged diagonally with respect to the traveling direction of the conveyed object, a single prime mover is provided below the intermediate roller group, and the intermediate roller is driven by the single prime mover, and the intermediate roller group is driven by the single prime mover. At least two drive shafts are disposed parallel to the axis of the group, and at least one of the intermediate roller groups is suspended by the drive shaft and the conduction band to receive a driving force, and The second roller group has a main roller arranged at a predetermined number of intervals and a follower roller adjacent to the main roller, and the main roller is
It is characterized in that the driving force is received by being suspended between the transmission shaft and the conduction band which are close to each other in distance, and the main roller and the slave roller are suspended via the conduction band. Corner driven roller conveyor.