JP2845135B2 - Lateral feeder in roller conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device for a roller conveyor.

[0002]

2. Description of the Related Art Heretofore, the following are known as this type of traverse device. That is, a device having at least two endless transport belts provided between rollers of a roller conveyor so as to be able to move up and down and a driving source such as a motor for driving the endless transport belt is known.

[0003]

Disadvantages of the prior art The traverse device in the conventional roller conveyor has the following disadvantages. That is, since the drive source for driving the endless transport belt must be provided separately from the rotary drive device of the roller conveyor, there is a disadvantage that the cost is high.

[0004]

The present invention employs the following means to solve the above-mentioned drawbacks. The present invention
At least two endless transport belts provided so as to be able to ascend and descend between rollers of the roller conveyor, and an endless transport belt operating device having a driven wheel receiving power from a rotary driving device of the roller conveyor at a position where the endless transport belt is raised. Having a roller conveyor
A traversing device in which the rotary drive is a roller conveyor
Are arranged along the transport direction below
It has a drive rotary shaft and receives rotation from the drive rotary shaft.
The rollers on the roller conveyor to rotate
When the endless transport zone is raised, the drive
A predetermined distance beside the driving wheel of the spindle and the driving wheel
Leave the axis parallel or almost parallel to the axis of the drive shaft.
Make sure that the driven wheel
It is something that has been done .

[0005]

The present invention has the following functions. When the endless transport belt rises, the endless transport belt receives power from the rotary drive device of the roller conveyor, so there is no need to provide a drive source such as a motor specially for the traversing device. As a result, cost can be reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. In this specification, the front means the right side of FIG. 1, the rear means the left side of FIG. 1, and the left means the back side of FIG.
Right means the same side.

As shown in FIG. 1, a pair of left and right roller conveyors 1 each having a transport direction facing forward and backward are provided with a base frame 2 and
A number of rollers 3 are provided on the base frame 2 so as to be rotatable at predetermined intervals in the front-rear direction such that the axis is directed in the left-right direction.
And

A roller shaft 4 on which the roller 3 is rotatably fitted is passed over left and right bearings 6 provided on the base frame 2.

As shown in FIG. 2, the roller 3 of each roller conveyor 1 is formed as a set of two rollers, and is positioned below the rollers 3 formed as a set.
A bearing 9 is provided so as to be vertically swingable by a pivot 8 whose axis is oriented in the front-rear direction. The bearing 9 has an axis oriented in the left-right direction and an axis aligned with the axis of the front and rear rollers 3. The rotating shaft 10 is rotatably fitted so as to be positioned in the middle, and the transmission roller 12 and the wheel 1
3 is fitted. With such a configuration, the rotation of the transmission roller 12 can be transmitted to the pair of front and rear rollers 3 by swinging the bearing 9 and bringing the transmission roller 12 into contact with the pair of front and rear rollers 3. By rotating the bearing 9 in the opposite direction to move the transmission roller 12 away from the roller 3, the rotation of the transmission roller 12 can be prevented from being transmitted to the roller 3.

An actuating piece 15 is provided in a lower part of the bearing 9 in a hanging manner, and an actuating device 1 such as a linear solenoid provided in the bearing 6 with the actuating piece 15 provided below the pivot 8 in the bearing 6.
By pushing to the left by 6, the transmission roller 12
Can be brought into contact with the roller 3. Then, if the operated piece 15 is not pushed by the operating device 16, the transmission roller 12 is separated from the roller 3 by its own weight and the tension of the round belt 20 described later.

The bearing 2 provided on the connecting bar 7 of the base frame 2
1, a drive rotation shaft 18 that is always rotating is rotatably fitted with the axis centered in the front-rear direction. The drive rotation shaft 18 has its axis orthogonal to (including substantially orthogonal to) the axis of the roller 3 when viewed from a plane. The drive rotation shaft 1
Numeral 8 is rotatable in both forward and reverse directions by a motor (not shown). A wheel 19 is fitted on the drive rotation shaft 18 corresponding to the wheel 13, and a round belt 20 is stretched over the wheel 19 and the wheel 13. With such a configuration, the transmission roller 1
The round belt 20 is stretched in a state where the roller 2 is in contact with the roller 3, and the rotation of the constantly rotating drive rotary shaft 18 is transmitted by the transmission roller 1.
When the transmission roller 12 separates from the roller 3, the round belt 20 is loosened, so that the rotation of the drive rotary shaft 18 is not transmitted to the transmission roller 12. As is clear from this description, the rotation driving device 22 of the roller conveyor 1 is configured by using the above-described driving rotation shaft 18, the round belt 20, the transmission roller 12, and the like as main components.

An article W in the middle of the roller conveyor 1
In a station 31 for laterally moving (moving to the left and right), a lift frame 33 is provided so as to be able to move up and down by a known lift device 32 including a fluid pressure cylinder and the like. The lifting frame 33
A pair of front and rear chain guides 34 long in the left-right direction
It is arranged so as to be located between the rollers 3 which are not a set (so as not to collide with and interfere with the transmission roller 12), and so as not to collide with or interfere with the drive rotating shaft 18. Note that a portion of the base frame 2 traversed by the chain guide 34 is cut away so as to escape the chain guide 34. Further, of the five rollers 3 (see FIG. 4) between the chain guides 34, the front two and the rear two are a set corresponding to the transmission roller 12, and the center one is any one of the front and rear sets. It is power-coupled by an endless chain or the like so as to interlock with the one of the above.

A driven shaft 36 is provided below the lifting frame 33.
The shaft is oriented in the front-rear direction, and is located at the lower left of the drive rotation shaft 18 of the left roller conveyor 1 (see FIG. 3). The driving wheel 38 is fitted to the drive rotating shaft 18 so as to face the driven wheel 37 (to overlap with the driven wheel 37). The driving wheel 38 having a large diameter is used.
A notch opening is formed in the connecting bar 7 so that the connecting bar 7 does not collide with or interfere with the connecting bar 7. An auxiliary wheel 39 whose axis is parallel or substantially parallel to the axis of the drive rotation shaft 18 is provided at the connection rail 7 of the left roller conveyor 1 at a predetermined interval beside the driving wheel 38 so as to be rotatable. . Then, when the elevating frame 33 rises to a height position at which an upper portion 43a of an endless transport band 43 described later protrudes from the transport surface of the roller conveyor 1, between the auxiliary wheel 39 and the driving wheel 38, from below, the The driven wheel 37 enters so as to abut.

Wheels 42 at the left and right ends of the front chain guide 34, wheels 42 fitted to the front end of the driven shaft 36, and a plurality of wheels 42 rotatably provided on the lifting frame 33. A front endless transport band 43 made of is formed, and is rotatably provided on the wheels 42 on the left and right ends of the rear chain guide 34, the wheels 42 fitted on the rear end of the driven shaft 36, and the lifting frame 33. A rear endless transport band 43 composed of a chain, a belt, and the like is stretched over the plurality of wheels 42 provided. Then, the upper portion 43a of the endless transport band 43
Is a transport unit. These upper portions 43a are configured to protrude from the transport surface of the roller conveyor 1 when the lifting frame 33 is raised. Then, in this state, the article W on the upper portion 43a can move from right to left,
Members such as an article guide rail that hinder the left and right movement of the article W have been removed. As is apparent from the above description, the driven wheel 37 and the driving wheel 38 described above are used.
The wheel 42 constitutes the endless transport belt operating device 40.

In front of the station 31 of the right roller conveyor 1, a stopper 46 for stopping the article W above the front and rear endless transport belts 43 is provided so as to be able to move up and down by a known elevating device. Behind the station 31 of the conveyor 1, a stopper 47 for stopping a subsequent article W while the article W is being transferred to the roller conveyor 1 on the left side is provided so as to be able to move up and down by a known elevating device.

[0016]

Next, the operation of the embodiment will be described. Article W
Is moved laterally from the roller conveyor 1 on the right side to the roller conveyor 1 on the left side, the stopper 46 is made to protrude, and the article W is stopped above the endless transport band 43 waiting to descend. Then, when the article W hits the stopper 46, the stopper 47 is made to protrude, and the subsequent article W
Is stopped, and at the same time, the lifting frame 33 is lifted, and the article W is lifted by the upper portion 43 a of the endless transport band 43. Then, the driven wheel 37 comes into contact with the driving wheel 38 and the auxiliary wheel 39, so that the endless transport belt 43 is driven by receiving rotation from the driving wheel 38 (the driving rotary shaft 18). As is clear from the above description, the drive rotation shaft 18 of the left roller conveyor 1 rotates clockwise in FIG. 3, and as a result, the left roller conveyor 1 conveys the article W from front to back. Things. Then, when the article W is transported above the left roller conveyor 1, the lifting frame 33 moves down, so that the article W is transported by the left roller conveyor 1. When the lifting frame 33 is lowered, the driven wheel 37 is separated from the driving wheel 38 and the auxiliary wheel 39, and the driving of the endless transport belt 43 is stopped. In this way, when the article W is transferred to the roller conveyor 1 on the left side, the stoppers 46, 47
Are you down.

[0017]

According to the present invention, the following effects can be obtained by the above-described configuration. According to the present invention, when the endless transport belt rises, the endless transport belt receives power from the rotary drive device of the roller conveyor. There is no need to provide them, and as a result, costs can be reduced . Also, auxiliary wheels and driving wheels
The driven wheel enters between the
The driven wheel is driven by a wedge-like action
Slip contact of the driven wheel
Rolling can be prevented.

[Brief description of the drawings]

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

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged sectional view taken along line III-III of FIG. 1;

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roller conveyor 3 Roller 22 Rotation drive device 33 Elevating frame 37 Follower wheel 38 Driving wheel 39 Auxiliary wheel 40 Endless transport zone operation device 42 Wheel 43 Endless transport zone 43a Upper part

Claims (1)

(57) [Claims] 1. At least two endless transport bands provided between rollers of a roller conveyor so as to be able to move up and down.
Rorako having endless conveyor belt actuating device having a driven wheel which receives power from the rotary drive of the roller conveyor in a position where the endless conveyor belt is increased
Traversing device in a conveyor, where the rotary drive is
Roller conveyor along the transport direction below
It has a drive rotation axis arranged in the
The rollers on the roller conveyor rotate
The endless transport belt is located at the raised position.
And the drive wheel of the drive shaft and the side of the drive wheel
At a predetermined interval in parallel with the axis of the drive rotary shaft or
A driven wheel is located between the nearly parallel auxiliary wheel
A traversing device on a roller conveyor adapted to enter .