JPH08143120A - Conveyor - Google Patents

Abstract

PURPOSE: To provide a conveyor provided with a round belt tilt-up mechanism where at least a part of the parts related to the round belt changing work are exposed above a conveyor frame. CONSTITUTION: A conveyor is provided with a longitudinal roller supporting member 15 which is elongated in parallel to a drive shaft 3 and provided under conveyor belts so as to be abutted on the prescribed number of conveyor belts 5 and an oscillating member 12 which is fixed to the longitudinal roller supporting member and provided with one end part to be pivotably fitted to the conveyor frame and the other end part to be abutted on the drive shaft, and the drive shaft and one end side of the conveyor belt are exposed above the conveyor frame together with the round belt by the oscillation of the oscillating member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article placed on a conveyor roller, which is rotated or stopped by connecting a plurality of conveyor rollers provided along a conveying direction of the article to a drive shaft through a round belt. More specifically, the present invention relates to a conveyor device having a round belt tilt-up mechanism that simplifies maintenance and replacement of the round belt.

[0002]

2. Description of the Related Art As a conventional conveyor device, a large number of conveyor rollers are provided along an article conveying direction, a conveyor frame for rotatably supporting both ends of each conveyor roller in a direction perpendicular to the conveying direction, and a motor. Shaft that is connected to the drive shaft and extends in the conveying direction, a drive pulley that is fixed at intervals along the longitudinal direction of the drive shaft, and a round belt that is stretched between the conveyor roller and the drive pulley. The one provided with and is known from Japanese Patent Publication No. 49-45836.

As shown in FIGS. 5 to 7, this type of conveyor device includes a pair of conveyor frames 1 extending in the article conveying direction (arrow A direction) and a pair of conveyor frames 1 in the conveying direction (arrow A direction). A plurality of cross members 2 that are installed between a pair of conveyor frames 1 at predetermined intervals, a drive shaft 3 that extends in parallel with the conveyor frame 1 and that is driven and braked by a motor (not shown), and above the cross members 2. Bearing 4 that rotatably supports the drive shaft 3 attached to the
And a plurality of conveyor rollers 5 provided at predetermined intervals along the transport direction (direction of arrow A) and mounted between a pair of conveyor frames, and the drive shaft 3 and each conveyor roller 5 are connected. A round belt 6 made of rubber and a drive shaft coupling joint 7 that connects the end of the drive shaft 3 to another drive shaft 3 are provided.

On the other hand, in this conveyor device, since the round belt 6 is made of rubber, it wears quickly, and if it is used for a long time or if a break occurs during the operation of the conveyor device, its replacement work is required. . This replacement work is
(1) Remove the bearing 4 supporting the drive shaft 3 from the cross member 2, (2) Remove the drive shaft coupling joint 7 from the drive shaft 3 and the bracket 13, (3) Damaged round belt 6 (round belt to be replaced) ) As a starting point, the round belt on the drive shaft 3 side and the round belt on the roller side are alternately shifted one by one.

More specifically, referring to FIG. 6, for example, when the pulley 3a fixed to the drive shaft 3 and the round belt 6a stretched around the conveyor roller 5a are damaged, (1) The bearing 4 that rotatably supports the drive shaft 3 is removed from the cross member 2, and (2) the drive shaft coupling joint 7 is removed from the drive shaft 3.
Furthermore, (3) the conveyor roller 5a at the location where the damage has occurred
And the adjacent round belt 6b is stretched around the pulley 3a, and then the conveyor roller 5b on which the round belt 6b is stretched.
And, the pulley 3b is subjected to a sequential feeding work by shifting the round belts 6b to 6g one by one such as stretching the round belt 6c, and finally a new round belt is attached to the pulley 3g and the conveyor roller 5g located at the end of the drive shaft 3. The procedure is such that 6 is stretched.

[0006]

Generally, most of the above-mentioned round belt exchanging work in the conventional conveyor device is carried out in the conveyor frame 1, so that the exchanging work takes a considerable amount of time, and the round belts are erroneously hooked. There are many work mistakes such as this.

An object of the present invention is to provide a conveyor device which improves the above-mentioned disadvantageous working conditions and facilitates maintenance work.

[0008]

The above object of the present invention is to convey an article placed on a conveyor roller by rotating or stopping a plurality of conveyor rollers provided along the article conveying direction (A). And a conveyor device for stopping, a pair of conveyor frames (1) on which both ends of the conveyor rollers (5) are placed and which extend in the transport direction.
A cross member (2) installed between the pair of conveyor frames, a drive shaft (3) for rotating the conveyor roller and extending in the carrying direction, and connecting the drive shaft and each conveyor roller. A plurality of round belts (6),
An elongated roller support member (15) provided below the conveyor roller so as to extend parallel to the drive shaft and to be able to contact a predetermined number of the conveyor rollers, and fixed to the elongated roller support member. And a swing member (12) having one end pivotally attached to the conveyor frame and the other end capable of pushing and holding the drive shaft upward. Achieved by

[0009]

With the above structure, it becomes possible to expose the drive shaft, the round belt, and the conveyor roller related to the round belt exchange work above the conveyor frame, which facilitates the exchange and maintenance of the round belt, and greatly reduces the work time. Not only can it be shortened, but also work mistakes can be reduced. Furthermore, by providing an actuator such as an air cylinder that swings the swing member in the conveyor device configured as described above, it is possible to automatically perform tilt-up operation of the drive shaft, round belt, and conveyor roller instead of manually. Becomes

[0010]

The present invention will be described below with reference to the illustrated embodiments.
FIG. 1 is a diagram showing a conveyor device 10 which is an embodiment of the present invention. In this figure, the conveyor device 10 has a predetermined number of conveyor rollers 5 provided at predetermined intervals along the conveying direction (arrow A direction) of articles on the conveyor frame 1 as one section, and for each section. The conveyor rollers 5 are provided, and convey or stop the articles placed on the conveyor rollers 5 by rotating or stopping the conveyor rollers 5.

1 to 4 showing the conveyor device 10, the same components as those of the conventional conveyor device shown in FIGS. 5 to 7 are designated by the same reference numerals and the description thereof will be omitted. In addition, in the drawings, as for the portions fixed by the bolts and nuts, the corresponding bolt insertion holes are indicated by arrows to simplify the drawing.

As shown in FIGS. 1 and 2, the sensing roller 8 is provided between the conveyor rollers 5 and slightly above the upper surface of the conveyor roller 5, and is conveyed on the conveyor roller 5. When the article to be passed passes above, the article is pushed down to a position almost at the same height as the conveyor roller 5, and the article is detected. The control device 34 (not shown) operates the drive shaft 3 based on the detection signal of the article by the sensing roller 8. That is, the control device activates the drive shaft 3 in a state where the sensing roller 8 does not come into contact with the article conveyed on the conveyor roller 5, and the article conveyed on the conveyor roller 5 pushes down the sensing roller 8. Then, the drive shaft 3 is deactivated.

As shown in FIGS. 1 to 4, a pair of conveyor frames 1 are arranged at predetermined intervals in the carrying direction (direction of arrow A).
The cross member 2 provided between the two has a substantially U-shaped cross section. A bottom surface 2a on one end side of the cross member 2 is fixed to the bottom surface 1a of the conveyor frame 1 with a bolt.
Further, a pair of bearing support plates 14b that non-rotatably support a pillow type bearing 14a that rotatably supports the drive shaft 3 are attached to the upper surface 2c on the other end side of the cross member 2 by means of bolts and nuts (not shown). Has been.

When the drive shaft 3 is driven by a motor (not shown) and each conveyor roller 5 is rotated through the round belt 6, the drive shaft 3 is bent due to the pulling force of the round belt, so that it is of a pillow type. The cross member 2 that supports the bearing 14a and the bearing support plate 14b is installed at a position that supports the drive shaft 3 at a constant pitch so as not to hinder the conveyor function.

A swinging member 12 is pivotally mounted via a pin 11 in a hole 2d formed in the side surface on one end side of the cross member 2. The swinging member 12 extends from one end side below the drive shaft 3 and has a length substantially equal to the length of the conveyor roller 5 in the axial direction.

The rising portion 12a of the rocking member 12 is fixed to a longitudinal roller supporting member 15 described later through a bracket 13 having a substantially L-shaped cross section. Rocking member 12
Is provided with an inclined portion 12b that inclines from the rising portion 12a toward the end portion on the other end side. When the swing member 12 is swung about the pin 11, the inclined portion 12b causes the drive shaft to move. It is designed to move in the direction of 3. Further, a projection 12c is provided at the other end of the swing member, that is, the end of the inclined portion 12b, and the drive shaft 3 falls from the inclined portion 12b when the swing member 12 swings. Prevent that.

The elongated roller support member 15 has a pin 11
A bottom surface that extends in the transport direction (A) so as to be able to contact a predetermined number of conveyor rollers 5 when the swinging member 12 swings about the center of the swinging member 12, and the swinging member 12 is fixed via the bracket 13. It is composed of a plate having a substantially L-shaped cross section, which is composed of a portion 15a and a standing portion 15b provided with a plurality of holding grooves 15c for holding each conveyor roller 5 standing upright from the bottom surface portion 15a when swinging.

As shown in FIGS. 3 to 4, on the bottom surface 1a of the conveyor frame 1, a bottom surface fixing portion 16a fixed to the bottom surface 1a and an upright portion 16 standing upright from the bottom surface fixing portion 16a.
A bracket 16 is fixed, which is composed of b and a pair of protrusions 16c that protrude from the standing portion 16b toward the inside of the conveyor. One end 1 of the air cylinder 17 driven by a drive source (not shown) is attached to the protrusion 16c of the bracket 16.
7a is pivotally attached via a pin 16d. The other end 17b of the air cylinder 17 is fixed to the bottom surface portion 15a of the elongated roller support member 15 via a bracket 18.

Next, the swinging motion of the swinging member 12 having the above-mentioned structure will be described. When the cylinder rod 17c of the air cylinder 17 pivotally mounted on the bracket 16 fixed to the conveyor frame 1 is moved from the initial position shown by the solid line to the contracted position shown by the dotted line in FIG. A long roller support member 15 fixed to the other end 17b of the cylinder 17 via a bracket 18.
Rotates upward about the pin 16d. Also,
Along with the upward rotation of the long roller support member 15, the swing member 12 fixed to the long roller support member 15 via the bracket 13 also swings upward about the pin 11. .

As shown in FIG. 3, by the upward rotation of the elongated roller supporting member 15, the conveyor roller 5 located on the elongated roller supporting member 15 holds the elongated roller supporting member 15. The conveyor roller 5 placed on the conveyor frame 1 while being pressed against the groove 15c
It will be inclined centering on one end side. At this time, since each conveyor roller 5 is positioned and held by the holding groove 15c, it does not roll and fall.

Further, as shown in FIG. 3, as the swing member 12 swings, the drive shaft 3 has a tilted portion 12b of the swing member 12.
While being abutted and pressed against and being prevented from falling by the protrusion 12c, it is moved above the conveyor frame 5. At this time, the pillow type bearing 14a supporting the drive shaft 3 is also moved above the conveyor frame 1 together with the drive shaft 3.

As shown by the dotted line in FIG. 3, one end side of the conveyor roller 5 on which the round belt 6 is stretched and the drive shaft 3 are oscillated by the swinging of the swinging member 12 and the elongated roller supporting member 15.
Is moved to a position higher than the conveyor frame 1 and is exposed, so that the work of replacing the round belt 6 is facilitated.

In the above embodiment, each bracket 1
Although holes 3, 3 and 18 are provided respectively to fix the bolts and nuts, it is possible to substitute welding or bonding means instead of this. Further, although the actuator is used to swing the swinging member 12, it is also possible to change to a manual configuration without using the actuator. Furthermore, although the air cylinder 12 is used as an actuator, this is a hydraulic cylinder,
It is also possible to change to an electronic motor, a spring, or the like.

[0024]

As described above, according to the present invention, it becomes possible to expose at least a part of the parts related to the round belt replacement work above the conveyor frame, which facilitates the replacement and maintenance of the round belt. Not only can the working time be greatly shortened, but also the frequency of working errors can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing a conveyor device according to an embodiment of the present invention.

FIG. 2 is a view of the conveyor device of FIG. 1 as viewed in the direction of arrow II.

3 is a III-III arrow view showing the swing motion of the conveyor device of FIG. 1 in solid lines and dotted lines.

FIG. 4 is an exploded perspective view of a main part of the conveyor device of FIG.

FIG. 5 is a plan view showing a conventional conveyor device.

6 is a VI-VI direction arrow view of the conveyor device of FIG. 5;

7 is a VII-VII direction arrow view of the conveyor device of FIG. 5;

[Explanation of symbols]

 1 Conveyor Frame 2 Cross Member 3 Drive Shaft 4 Bearing 5 Conveyor Roller 6 Round Belt 7 Drive Shaft Connection Joint 8 Sensing Roller 10 Conveyor Device 11 Pin 12 Swing Member 13 Bracket 14 Pillow Bearing 15 Longitudinal Roller Support Member 16 Bracket 17 Air cylinder 18 bracket

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Eiichi Kudo 8-19-20 Higashisuna, Koto-ku, Tokyo Toyo Kanetsu Co., Ltd.

Claims (1)

[Claims] 1. By rotating or stopping a plurality of conveyor rollers provided along the article conveying direction (A),
A conveyor device for carrying and stopping an article placed on a conveyor roller, comprising: a pair of conveyor frames (1) extending in the carrying direction, both ends of the conveyor roller (5) being placed; and the pair of conveyor frames. A cross member (2) installed between the two, a drive shaft (3) for rotating the conveyor roller and extending in the carrying direction, and a plurality of round belts (6) connecting the drive shaft and each conveyor roller. An elongated roller supporting member (15) provided below the conveyor roller so as to extend parallel to the drive shaft and to be able to contact a predetermined number of the conveyor rollers, and the elongated roller supporting member. A rocking member (12) fixed to the conveyor frame and having one end pivotally attached to the conveyor frame and the other end capable of pushing and holding the drive shaft upward. Conveyor apparatus characterized by having.