JPS63196402A - Drive roller conveyer - Google Patents

Abstract

PURPOSE:To make accumulation possible without a collision of carried goods by providing a carrier detector to individual carrier pitches of a roller conveyer divided by carrier pitches, and making the action of the adjoining detector to be transferred to carrier pitches in the reverse carrier direction successively and to be stopped. CONSTITUTION:When a detecting roller 11' is depressed by carried goods, a locker arm 10' is depressed to an interferable position with a locking part 9' of a wheel 8' by a detecting arm 13'. However, when no carried goods exist on a detecting roller 11 adjoining the downstream side, carried goods are carried with interference eliminated as a detecting arm 13 is abutted to a stopper 15 and the locker arm 10' is pulled. But when the detecting roller 11 is depressed by an operator etc., a locker arm 10 is pushed in the reverse carrier direction by a rod 17'', interferes with a lock part 9 of a wheel 8, and carrying is stopped. And the action is transferred to succeeding carrier pitches similarly and successively and accumulation is made. Thus collision is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a means for transporting objects moving on drive rollers to
This invention relates to a drive roller conveyor that accumulates conveyed objects without bumping them or damaging them.

(Prior Art) In a conventional roller conveyor, when the detection CI-ra detects a conveyed object, it stops the drive roller of the stage of the conveyed object adjacent to the conveyed object in the reverse conveyance direction. It stops at the stage and detects it [J-ra] reaches the preceding stage where the roller is located, and is continuously pushed by the following conveyed objects and reaches the position where it is detected by the detection roller, which disturbs the alignment of the series of conveyed objects. On the other hand, the following drive roller completely stops even though the transported object has stopped! f
! There was a drawback that there was a risk that sliding and rubbing would occur between the IG and the transported object, causing damage to the transported object.

(Problems to be Solved by the Invention) In the present invention, when a conveyed object being transported by a roller conveyor stops, the drive rollers involved in the following conveyed objects are sequentially stopped, and each conveyed object is To provide a drive roller conveyor V that can prevent the alignment from being disturbed due to interference between U and F, and can also eliminate immersion friction between the conveyed object and the drive roller during clamping.

(Means for Solving the Problems) The present invention provides drive rollers arranged on a conveyance track, an eta-driven drive shaft that rotates orthogonally to the drive rollers, and a drive shaft that is fitted onto the drive shaft to form a groove. a separate pulley for each of the drive rollers that rotates together with the action; a drive belt that is hung between the pulley and each of the drive rollers and rotates the drive roller according to the rotation of the pulley; and a conveyed object on the frame of the conveyance track. A detection arm that is rotatably mounted around an axis at a conveyance pitch position determined by the length of the detection arm and is positioned in contact with a stopper by the biasing force of a spring, and a detection arm that is rotatably attached to the detection arm. a detection roller that protrudes onto the conveyance surface formed by the drive roller and crosses the conveyed object on the conveyance surface when the detection arm is positioned in contact with the stopper; When a moving conveyed object interferes with the detection roller and the detection arm rotates against the biasing force of the spring, it interferes with the locking part formed on the pulley, causing the pulley to stop rotating. The rocker arm attached to the detection arm and the rocker arm attached to each detection arm arranged at the conveyance pitch and the detection arm shifted one pitch in the opposite conveyance direction are articulated so that the detection arm resists the biasing force of the spring. The drive roller conveyor is provided with a rod that, when rotated, displaces the rocker arm in the reverse conveyance direction by one pitch to a position where it does not interfere with the pulley.

(Function) In the drive roller conveyor configured in this manner, when there is no conveyed object on the conveyance track, each drive roller is actively rotated by the drive shaft, and each detection roller protrudes above the conveyance surface.

When a conveyed object is loaded onto the conveyor track 4 in this state, it is conveyed by the active rotation of the drive roller, and during this conveyance, the conveyed object is prevented from interfering with the detection roller.The detection arm is rotated to engage the rocker arm with the pulley. Even if the detection arm is moved to a position where it can cross the stopper by 1 pip in the conveyance direction, the detection arm is in contact with the stopper, so the above [1]
The hook arm does not interfere with the locking portion of the pulley, and therefore, the conveyed object is conveyed as is unless there is a preceding conveyed object one pitch ahead in the conveying direction.

During this conveyance route 1, in a stop operation state in which the operator manually or automatically pushes a detection roller at a specific position, the conveyed object pushes the detection roller at a position one pitch in the opposite conveyance direction of the stop operation detection roller and causes the detection arm to move. If rotation is avoided, the rocker arm at the relevant position will interfere with the locking part of the pulley, and the pulley at the relevant position iR will stop while slipping between it and the drive shaft, and the movement of the conveyed object will also stop together with the drive roller at the relevant position.

The subsequently conveyed object also reaches the 1-pitch position in the reverse conveyance direction and the detection roller is pushed, as the conveyed object at the 1-pitch position in the conveyance direction rotates the detection arm. The rocker arm interferes with the locking part of the pulley, and the conveyed objects on the conveying track are sequentially accumulated with the drive rollers stopped.

In this accumulation state, the interference with the locking part of the stop operation is released, and the carried object at the relevant position starts moving, and the carried object advances one pitch and returns the detection arm. Accumulation is canceled for the subsequent conveyed objects, and conveyance begins in sequence.

(Example) Next, the configuration of an example of the present invention will be described with reference to the drawings. In FIG. 1, the drive roller 1 includes a bearing (not shown),
A drive belt 4, which is rotatably supported by a frame structure at approximately equal intervals on the conveyor track, is attached to the end of the drive belt 4, which is generally twisted by 90 degrees from a pulley 3 attached to a drive shaft 2 installed below the frame structure. Formed belt? 1
It is hung on S5 and constitutes a °C conveyance surface.

The drive rollers 1 are determined by the size of the conveyed object 6: The length of the conveyor in the conveying direction, that is, the number related to one conveying pitch corresponds to the pulleys 3 provided within one conveying pitch.

The pulley 3 is integrally constructed with a collar 7 and a wheel 8 formed with a locking portion 9 corresponding to a dry propeller, and is fitted onto the drive shaft 2 while maintaining a predetermined frictional force. The drive shaft 2 is commonly used for each conveyance pitch and is continuously driven by a motor (not shown). The detection arm 13 is rotatably mounted on the frame structure by a fulcrum 12, is biased upward by a screw spring 14, and a protrusion abuts against a stopper 15, causing the detection arm 13, which is attached to another protrusion (pulled), to be rotated. Projection height h from drive roller 1 (
See Figure 4). As described above, the detection roller 11 is attached to one protrusion of the detection arm 13 so as to be freely rotatable.

The detection arm 13 has a rocker arm 10 rotatably attached to the end in the conveyance direction by a fulcrum 16, and a pulley 3 at the tip.
The connecting rod 17'' is connected to the lever of the detection arm 13, which is shifted by one pitch in the conveyance direction, at the tip of the wheel 8. A lever 20 extending downward is provided at the end of the detection arm 13 in the reverse transport direction. - A connecting rod 1 that connects a rocker arm 10 - provided in -
7 is rotatably mounted at a fulcrum 16-.

As described above, the drive roller conveyor according to the present invention has 1
It is constructed in units of W1 feeding pitch and is repeatedly articulated to form a series of conveyors.

Next, the operation of this embodiment will be explained. FIG. 4 shows a state in which there is no conveyed object on the conveyance track, and the detection rollers 11.11- of each conveyance pitch are connected to the detection arm 13.13.
- is biased by the spring 14, 14-, and the stopper 15
．． The rocker arm 10, which is in contact with the wheel 8 and protrudes from the drive roller 1 by an amount h and is articulated with the detection arm 13, does not interfere with the locking portion 9 of the wheel 8, and the drive rollers 1 and 1' are not driven. Drive belts 4, 4 are driven by pulleys 3, 3- which are rotated by the shaft 2.
Rotate via -. FIG. 5 shows a state in which the conveyed object 6 is moved on the conveyance track and is pushing down the detection row 511-, and the detection arm 13- connects the rocker arm 10- with the locking part 9 of the wheel 8. The detection arm 13 is pushed up to a position where it can interfere, but is shifted by one pitch in the conveyance direction.
is in a position where it abuts against the stopper 15 because the conveyed object has not reached it, and is in a position where it does not interfere with the locking part 9- of the wheel 8' by pulling the rocker arm 10' via the necking rod 17, so the wheel A pulley 3' (not shown) integrated with 8- is driven by the drive shaft 2 and conveys the object 6. Figure 6 shows a state in which the conveyed objects 6, 6- accumulate each time the operator manually or automatically pushes down the detection roller 11 during conveyance. Push the rocker arm 1 in the opposite transport direction.
0 has been moved to a position where it can interfere with the locking part 9 of the wheel 8, and as a result of the conveyed object 6 pushing down the detection arm 13, the latch arm 10 interferes with the locking part 9 of the wheel 8, and the wheel 8 The pulley 3 attached to the wheel 8 and the drive roller 1 are also stopped to pick up the conveyed object 6. The conveyed object 6' which has reached one pitch in the reverse conveyance direction is also stopped by the same action as the conveyed object 6. 7th
The figure shows a conveyed object 6.6 that was moving at a rate of 74 on the conveyor track.
- indicates a state in which the stop condition has been lifted manually or automatically by the operator. That is, since the detection arm, which has shifted by one bit in the conveyance direction, is returned and lifted by the spring, the connecting rod 17'' is pulled in the conveyance direction, and the rocker arm 10 is displaced from the position where it intersects with the locking portion 9 of the wheel 8. The rotation restriction of the wheel 8 is released. Therefore, the drive roller 1 rotates and sends out the conveyed object 6. When the conveyed object 6 leaves the detection roller 11, the detection arm 13 returns to the stopper 15 and the connecting device, and the lever 20 is released. Pull the connecting rod 17 in the conveyance direction, and detach the rocker arm 10- of one pitch in the reverse conveyance direction from the engagement 1F portion 9- of the wheel 8-, and remove the wheel 8'.
The rotation restraint is released and the conveyed object 6- is moved.

In the above manner, the flow of conveyed objects in -.
When the conveyance object is stopped at the opposite conveyance direction, the conveyance objects in the opposite conveyance direction accumulate one after another without interfering with each other, and when the stop is released, they also start moving one after another without interfering with each other.

(Effects of the Invention) According to the present invention, the conveyance object detection mechanism provided at each conveyance pitch of the roller conveyor divided by conveyance pitch detects whether or not the conveyance object at the adjacent conveyance pitch has stopped in the reverse conveyance direction. Depending on the situation, the conveyance function of the own conveyance pitch is restricted or released to start and stop the drive rollers, and the result is transmitted to the adjacent conveyance pitch in the opposite conveyance direction, and the above operation is repeated. This allows the objects to flow smoothly and in alignment on the conveyor, and has the effect of eliminating sliding friction between the drive rollers and the conveyed objects.

[Brief explanation of the drawing]

FIG. 1 shows the conveying pitch of one unit of one embodiment of the present invention and the conveying pitch of another one unit IQ adjacent in the opposite conveying direction. Schematic diagram of organizing a series of roller conveyors, Figure 2 is the first
A partial view of the wheel 8 shown in the figure as seen from A showing a state where it is restrained by the rocker arm 10.
Detection roller 11° 11' when there is no conveyed object on the conveyor;
detection arm 13.13', rocker arm 10.10-,
An explanatory diagram showing the operating state of the wheel 8.8- and the connecting rod 17, FIG. An explanatory diagram that does not show the state in which the detection arm 13- and the rocker arm 10' are affected, FIG.
．． 10 = is an explanatory diagram showing a state in which wheels 8 and 8- are restrained, and Fig. 7 shows that the conveyed object 6 that had been stopped has started to move after the cause of the stop has been removed and is conveyed at an adjacent conveying pitch in the reverse conveying direction. It is an explanatory view showing a state when the temporary stop of object 6' is released. 1...Drive roller 2...Drive belt; 33...Brief 4...Drive belt 6...Transferred object 8...Wheel 9...Locking part 10... Rocker 7-Arm 11...Detection [Cola 13...Detection arm 14...Spring 15...Stopper

Claims (1)

[Claims] Drive rollers arranged on a conveyance track, a motor-driven drive shaft that rotates orthogonally to the drive rollers, a separate pulley for each of the drive rollers that fits into the drive shaft and rotates together with the drive roller, and the pulley. and a drive belt that is hung between each of the drive rollers and rotates the drive roller according to the rotation of the pulley, and a drive belt that is rotatable about an axis at a conveyance pitch position determined by the length of the conveyed object on the frame of the conveyance track. installed,
and a detection arm that is positioned in contact with a stopper by the biasing force of a spring; and a detection arm that is rotatably attached to the detection arm, and in a positioned state in which the detection arm is in contact with the stopper, the drive roller a detection roller that protrudes onto a conveyance surface formed by a roller and interferes with the conveyed object on the conveyance surface; and a conveyance object that moves on the conveyance surface interferes with the detection roller, causing the detection arm to be attached to the spring. a rocker arm that is attached to the detection arm so as to be able to stop the rotation of the pulley by interfering with a locking portion formed on the pulley when it rotates against a force; a rocker arm that is arranged on the detection arm at a conveyance pitch; The rocker arm attached to the detection arm shifted by one pitch in the direction is articulated, and when the detection arm rotates against the biasing force of the spring, the rocker arm in the opposite transport direction is displaced by one pitch to a position where it does not interfere with the pulley. A drive roller conveyor characterized by comprising each with a rod.