JP2607235Y2 - Belt driven 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 an improvement in a belt driven roller conveyor having an accumulation rate function.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application Laid-Open No. 57-67404 or Japanese Utility Model Publication No. 60-2089, conventionally, a transport surface formed by a large number of transport rollers juxtaposed on a frame is divided into a plurality of zones. A sensing roller is provided for each zone and divided, and the displacement of the sensing roller due to the weight of the transferred article is transmitted to the stopper, and this is engaged with the drive ring with the claw to stop the transport roller in the subsequent zone. 2. Description of the Related Art A belt drive roller conveyor adapted to be driven is known.

According to such a belt driving roller conveyor, when a conveyed object is transferred to a certain zone and the sensing roller is displaced by its own weight, the stopper causes the stopper to move the driving ring with a pawl via a link mechanism. To stop the transport roller in the subsequent zone, so that the transfer of the transported material in the subsequent zone is stopped, and the line pressure can be reduced.

[0004]

However, in the prior art described above, the stopper is always separated from the drive ring with the claw by the spring, and the displacement of the sensing roller due to the weight of the conveyed object causes the link mechanism to resist the spring force of the spring. When the load is lightweight, the sensing roller and the link mechanism connected to it can be adjusted by adjusting the spring force of the spring. There is a drawback that it does not operate properly, and it is difficult to adjust the spring force.

Therefore, if the sensing roller and the link mechanism do not operate in this manner, the line pressure due to the following conveyed object is applied as it is, and the conveyed roller group cannot be stopped. As a result, the conveyed object is deformed and the arch phenomenon occurs. Occurred, and there was a problem that storage of the conveyed goods could not be performed.

Further, it has been pointed out that the above-mentioned conventional example has a large number of parts and, because of the combination of the link mechanisms, has a large play during operation. The present invention has been devised in view of such circumstances, and has as its object to provide a belt drive roller conveyor having an accumulation rate function with a small number of parts, zero line pressure and no malfunction.

[0007]

In order to achieve the above object, according to the present invention, a plurality of transport rollers arranged in parallel with a frame and a drive shaft corresponding to each transport roller are fitted. While connecting the transmission belt between the drive ring and
The conveying roller is divided into a plurality of zones, and a belt driving roller conveyor for stopping the rotation of the driving ring by a stopper mechanism provided for each zone and stopping the rotation of the conveying roller for each zone is divided into a plurality of zones. In each of the zones, two optical sensors for detecting a transported object on the transport roller are installed, and one optical sensor in each zone and one optical sensor in a downstream zone adjacent thereto are connected in series. And an engaging portion is provided on the drive ring, and the stopper mechanism is provided with the engaging portion provided on the drive ring, an operating shaft arranged in parallel with the drive shaft for each zone, and an optical sensor. -out based on the detection signal, and an air cylinder for moving the actuating shaft in the axial direction by extending the piston rod, trims the operating shaft, the engagement in the movement of the actuating shaft by extension of the piston rod of the air cylinder Constituted by a stopper which engages the stopper mechanism when the optical sensor of the optical sensor and the upstream zone of the downstream zones and connected in series state detects the conveyed object on the transport roller, the upstream zone air cylinder But
Actuation causes the operating shaft to move in the axial direction,
The topper engages with the engagement portion of the drive ring to stop the drive ring.
Sealed then and said Rukoto.

According to a second aspect of the present invention, a transmission belt is connected between a number of transport rollers arranged in parallel to a frame and a drive ring fitted to a drive shaft corresponding to each transport roller. , Dividing the transport roller into multiple zones,
In a belt drive roller conveyor that stops the rotation of the drive ring by a stopper mechanism provided for each zone and stops the rotation of the transport roller for each zone, the belt is divided into a plurality of zones, and The two optical sensors for detecting the conveyed object are installed, and one optical sensor of each zone and one optical sensor of the downstream zone adjacent thereto are connected in series, respectively. The drive shaft is fitted with a spacer having an engaging portion on the outer periphery and co-rotating with the drive ring, and the stopper mechanism is provided with the spacer and an operating shaft arranged in parallel with the drive shaft for each zone. -out based on the detection signal of the light sensor, and an air cylinder for the piston rod is extended to move the actuating shaft in the axial direction, it trims the actuating shaft, in movement of the actuating shaft by extension of the piston rod of the air cylinder Constituted by a stopper which engages the Kigakarigo portion, a stopper mechanism, when the optical sensor of the optical sensor and the upstream zone of the downstream zones and connected in series state detects the conveyed object on the transport roller, the upstream side Zone air cylinder
Operates and the operating shaft moves in the axial direction, and attaches to the operating shaft.
The stopper engages with the engaging portion of the spacer, and the spacer
Is characterized in Rukoto stops the drive ring to rotate together coupled therewith and.

[0009]

[0010]

According to the invention according to claims 1 and 2, the direct
The downstream zone optical sensor and upstream zone connected in a row
When the optical sensor detects the load on the transport roller,
, The air circuit of the air cylinder of the stopper mechanism mounted in the upstream zone is opened, and the piston rod is extended.

When the piston rod extends in this manner, the operating shaft moves in the axial direction in accordance with the extension of the piston rod, so that each stopper mounted on the operating shaft engages with the engaging portion of the drive ring. In addition, according to the invention of claim 2, the stopper is engaged with the engaging portion provided on the spacer, and the rotation of the drive ring stops against the rotational force of the drive shaft, and as a result, The transport roller in each zone becomes a brake roller, and the transported object is stored in each zone.

[0012]

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of a belt-driven roller conveyor (hereinafter referred to as "roller conveyor") according to an embodiment of the present invention, FIG. 2 is a partially enlarged plan view of the roller conveyor, and FIG.
2 is a cross-sectional view taken along the line III-III in FIG. 2, in which 1 is a number of conveying rollers arranged in parallel between the conveyor frames 3 and 5.
A substantially U-shaped groove 7 is provided as shown in FIG. Then, below the transport roller 1 corresponding to these grooves 7,
A drive shaft 9 driven to rotate by a motor (not shown) is disposed orthogonal to the transport roller 1.

Two types of drive rings 11 and 13, which are frictionally driven by the drive shaft 9, are alternately slidably fitted on the drive shaft 9 in correspondence with the respective transport rollers 1. , 13, a spacer 15 co-rotatingly connected to both drive rings 11, 13, and a drive ring 11, 1.
Spacers 17 for preventing the displacement of No. 3 are alternately fitted.

The drive ring 11 is a cylindrical resin member having a drive shaft fitting hole 19 formed at the center as shown in FIGS. 4 to 6, and a flat groove belt groove 21 provided at the center of the outer periphery.
The flange 23 is integrally formed on both sides of the drive ring 11 with the endless transmission belt 25 as shown in FIG. 3 being bridged between the belt groove 21 and the groove 7 of the conveying roller 1. Is transmitted to the transport roller 1 via the transmission belt 25.

At one end of the drive ring 11, a cylindrical portion 27 having an outer diameter slightly smaller than that of the belt groove 21 is integrally provided to extend outward and coaxially with the drive shaft fitting hole 19. Two connecting projections 29 are formed integrally with the end of the tubular portion 27 at an interval of 180 ° in the axial direction along the end of the tubular portion 27. Also, on the outer periphery of the cylindrical portion 19, two engaging portions 35 each formed of an engaging piece having a trapezoidal cross section with which a stopper 33 of a stopper mechanism 31 described later is locked.
However, they protrude integrally with the flange portion 23 at an interval of 180 °.

On the other hand, as shown in FIGS. 7 to 9, the drive ring 13 is also a cylindrical resin member having a drive shaft fitting hole 19 formed at the center, and a flat groove belt provided at the center of the outer periphery. Flanges 23 are integrally formed on both sides of the groove 21, and the transmission belt 25 is bridged between the belt groove 21 and the transport roller 1, so that the rotation of the drive ring 13 is performed via the transmission belt 25. And transmitted to the transport roller 1.

At one end of the drive ring 13, a cylindrical portion 37 having the same outer diameter as the cylindrical portion 27 is integrally extended outward and coaxially with the drive shaft fitting hole 19. On the outer periphery thereof, two engaging portions 39 each formed of an engaging piece having the same shape as the above-mentioned engaging portion 35 are integrally formed on the same line as the engaging portion 35. A coupling concave portion 43 having the same shape as 41 is provided at a 90 ° interval from the engaging portion 39.

Although not shown, both drive rings 1
The drive rings 11 and 13 can be connected to each other by engaging the drive protrusions 1 and 13 with the drive shaft 9 and engaging the connection protrusions 29 of the drive ring 11 with the connection recesses 43 of the drive ring 13. .

The spacer 15 co-rotatingly connected to the drive rings 11 and 13 is a cylindrical resin member having a drive shaft fitting hole 19 formed in the center as shown in FIGS. The outer diameter is the same size as the cylindrical portions 27 and 37. At one end thereof, a connecting protrusion 41 having the same shape as the connecting protrusion 29 is provided in the axial direction along one end thereof.
It is formed integrally with an interval of 80 °, and has two connecting recesses 45 with which the connecting protrusions 29 can be engaged.
Is provided.

Accordingly, as shown in FIG. 3, the spacer 15 is fitted to the drive shaft 9 between the pair of drive rings 11 and 13 so that the connecting projection 29 of the drive ring 11 is engaged with the connecting recess 45 of the spacer 15. The pair of drive rings 11 and 13 are integrally connected via the spacer 15 by engaging the connection protrusion 41 of the spacer 15 with the connection recess 43 of the drive ring 113.

Therefore, although not shown, a plurality of spacers 1
5 are connected to each other, and these are connected to drive rings 11 and 1.
3, the drive rings 11, 1
The pitch width between the three can be changed.

As described above, in the present embodiment, the driving ring 1
By increasing or decreasing the number of spacers 15 interposed between the drive rings 11 and 13, the pitch width between the drive rings 11 and 13 can be changed. Although not shown, if the spacer 15 is of a split type, the pitch width can be easily changed.

As shown in FIG. 1, the roller conveyor according to the present embodiment includes eight transport rollers 1 for one roller.
The running surface is divided into a plurality of zones Z _{1 to} Zn as zones,
Then, on the downstream side of each zone Z ₁ ～Zn, respectively, two optical sensors 47, 49 that are disposed between the transport rollers 1 of two.

The optical sensors 47 and 49 are shown in FIGS.
As shown in FIG. 4, an optical sensor 4 mounted on a jumpsuit material 51 provided between the conveyor frames 3 and 5 via a sensor bracket 53 and disposed in each of the zones Z _{1 to} Zn.
7, 49, one of the optical sensors 4 as shown in FIG.
7 are connected in series with the optical sensors 49 in the adjacent downstream zone. Then, when the optical sensor 49 in the downstream zone and the optical sensor 47 in the upstream zone detect the transported object P, the air serial of the stopper mechanism 31 in the upstream zone is detected.
, And is operated.

[0026] In addition, the optical sensor 47 of the most downstream side zone Z ₁
Is connected to a drive circuit of a protruding stopper plate 55 disposed at the forefront of the roller conveyor. The stopper plate 55 protrudes to stop the conveyed object P, and at the same time, the optical sensor 47 detects the conveyed object P. The zone Z ₁
The stopper mechanism 31 is operated.

Although not shown, the stopper plate 55 is an air cylinder in a cylinder case disposed below the transport roller 1 and protrudes upward from the transport roller 1 to stop the transported object P. Since the stopper plate 55 is lowered by a command and case conveying the conveyed object P on the downstream side of the roller conveyor, as a result, the optical sensor 47, 49 of the most downstream zone Z ₁ is no longer detects the conveyed object P,
The stopper mechanism 31 of each of the zones Z _{1 to} Zn is sequentially released, and the transport roller 1 resumes rotation, so that the transported material P in the upstream zone is transported to the next zone. Then, the stopper plate 55 immediately raises the transported article P after transporting the transported article P, and sets the transported articles P sequentially transported to the storage state.

Thus, the stopper mechanism 3 in the present embodiment
As shown in FIG. 13 and FIG. 16, the drive ring 11 and an operating shaft 57 arranged for each of the zones Z _{1 to} Zn are provided.
If, piston upon detection of the transfer material P by the light sensor 47 and 49
An air cylinder 59 that extends the ton rod 67 to move the operating shaft 57 in the axial direction; and a stopper that is attached to the operating shaft 57 and engages with the engaging portion 35 of the drive ring 11 when the air cylinder 59 moves the operating shaft 57. 33.

In order to mount the stopper mechanism 31 for each of the zones Z ₁ -Zn, as shown in FIGS. 2, 13 and 16, a mounting stay 61 is provided on the conveyor frame 5 side in parallel with the drive shaft 9. Attached to the lower part of the lumber 51,
Then, on the side surface of the mounting stay 61 on the side of the conveyor frame 5, one operating shaft 57 is provided with three vertical and horizontal cross sections L each.
It is movably supported along the drive shaft 9 for each of the zones Z _{1 to} Zn by a letter-shaped support bracket 63.

An air cylinder 59 is mounted on the mounting stay 61 via a mounting bracket 65 having a U-shaped cross section.
7 is provided with a connection bracket 69. Then, the connection bracket 69 is connected to the connection member 71 fixed to the operation shaft 57 side, and when the optical sensor 49 in the downstream zone and the optical sensor 47 in the zone detect the transported object P on the transport roller 1, With this signal, the air circuit of the air cylinder 59 is opened, the piston rod 67 is extended, and the operating shaft 57 is moved in the axial direction (the direction of arrow E in FIG. 16).

FIG. 17 and FIG.
As shown in FIG. 8, four stoppers 33 each having a tapered portion 73 formed at the distal end are fitted and bolted, and the air cylinder 59 always retracts the piston rod 67 to drive each stopper 33 as shown in FIG. 11 are separated from the engagement portion 35. Then, as described above, the optical sensor 4
When the operating shaft 57 is moved in the axial direction by the air cylinder 59 upon detection of the conveyed object P by the first and the seventh 49, the stoppers 33 are engaged with the engaging portions 35 of the drive ring 11 as shown in FIG.
And drive rings 11 and 13 integrally connected to each other.
The rotation of the spacer 15 is stopped against the rotational force of the drive shaft 9. In FIG. 17, reference numeral 75 denotes an operating shaft fitting hole for fitting the stopper 33 to the operating shaft 57.

Since the roller conveyor according to the present embodiment is constructed as described above, when the drive shaft 9 is driven to rotate by a motor, each of the drive rings 11, 1 fitted to the drive shaft 9 is rotated.
Since the transport rollers 3 rotate via the transmission belt 25 by friction driving, the transported objects P are sequentially transported in the downstream direction as shown in FIG.

When it becomes necessary to store the transported object P, if the stopper plate 55 is made to protrude above the transport roller 1, the transported object P comes into contact with the stopper plate 55 and becomes the most downstream zone Z. ₁ and the sensor 47 attached to the zone Z ₁
Sensing the piston rod 67 is extended air circuit of the air cylinder 59 of the in the stopper mechanism 31 to the zone Z ₁ by that signal open.

When the piston rod 67 extends in this manner, the operating shaft 57 moves in the axial direction in accordance with the extension, so that each stopper 33 attached to the operating shaft 57 engages with the engaging portion 35 of the drive ring 11. And the rotation of the drive ring 11 stops against the rotational force of the drive shaft 9.

Since the driving ring 11 is connected to the other driving ring 13 via the spacer 15 in series as described above, when the rotation of the driving ring 11 is stopped by the stopper 33, the zone Z is stopped. ₁ rotation of the drive ring 11 and 13 of each pair in the stops, as a result, all of the conveying roller 1 of the zones Z ₁ corresponding to this is a brake roller.

As described above, in a state where the article P is stopped in the zone Z ₁ , the article P is conveyed from the upstream side of the roller conveyor to the zone Z _2, and the optical sensor 47 on the zone Z _{2 is used.}
When but detects a conveyed object P, by a signal of the optical sensor 47 signal and the zone Z ₂ side from the light sensor 49 of zone Z _1,
The stopper mechanism 31 in the zone Z ₂ operates in the same manner, the stopper 33 engages with the engaging portion 35 of the drive ring 11, and the rotation of the drive ring 11 stops against the rotational force of the drive shaft 9. .

Since the drive rings 11 and 13 of each pair in the zone Z ₂ are also connected in series via the spacer 15, when the rotation of the drive ring 11 is stopped in such a manner,
In conveying roller 1 in the zone Z ₂ rotation stops of the drive ring 11 and 13 of each pair in the zone Z ₂ is a brake roller stops the conveyance of the transfer material, and its coasting,
This will reduce cargo movement.

Thereafter, in this state, the zones Z ₃ and Z on the upstream side
_4, ..., the conveyed object P to Zn is conveyed, similarly, each zone Z _3, Z _4, ..., the stopper 33 of the in the stopper mechanism 31 to Zn are respectively drive ring 11 And the rotation of each pair of drive rings 11 and 13 is stopped, so that the transport roller 1 becomes a brake roller and the transport of the transported object P is stopped.
_{In 1 to} Zn, the transported object P is stopped at a line pressure of zero with an interval from the transported object P in the preceding zone and stored.

When the stopper plate 55 is lowered by a command to convey the article P to the downstream side of the roller conveyor, the optical sensors 47 and 49 in the most downstream zone Z ₁ do not detect the article P. engagement between the stopper 33 and the engaging portion 35 of each zone Z ₁ ～Zn are sequentially released conveying roller 1 resumes rotation, the conveyance of the upstream zone is to be transported to the next zone. Since the stopper plate 55 immediately rises after discharging one conveyed object P, the conveyed object P to be conveyed next comes into contact with the stopper plate 55, and the above-described operation is repeated again. Then, the conveyed product stops at a line pressure of zero with an interval from the conveyed product P in the preceding zone.

As described above, in the present embodiment, the sliding surface of the transport roller 1 is divided into a plurality of zones Z _{1 to} Zn, and
_{1 to} Zn, the stopper mechanism 31 and the transport roller 1 respectively.
Two optical sensors 47 and 49 for detecting the upper conveyed article P are installed, and one optical sensor 47 of each zone is connected in series with one optical sensor 49 of the downstream zone adjacent thereto. At the same time, when the optical sensors 47 and 49 detect the conveyed object P on the conveying roller 1, the air cylinder 59 in the upstream zone operates based on the detection signal to operate the operating shaft 5.
7 moves in the axial direction, and the stopper 3 attached to the operation shaft 57
3 engages with the engagement portion 35 of the drive ring 11 and
11 so was constructed so that stops, compared to such a conventional example of JP 57-67404 JP and Japanese Utility Model 60-2089 discloses already described, the weight of the conveyed P irrespective stopper mechanism 31 Operates to stop the rotation of the transport roller 1,
As a result, it is possible to reliably store the transported objects P having various weights and bottom shapes.

[0041] Thus also, the roller conveyor according to the present embodiment,
Since the number of parts is smaller than in each of the above-described conventional examples, and since the stopper mechanism 31 does not have a structure in which a link mechanism is combined, play during operation is also eliminated.

[0042] Further, this embodiment, it is possible to change the pitch width between the drive ring 11, 13 by increasing or decreasing the number of the spacers 15 is interposed between the drive ring 11 and 13, each zone Z ₁ ~Zn The number of the stoppers 33 and the driving rings 11 can be adjusted. As a result, the number of the stoppers 33 and the driving rings 11 in each of the zones Z _{1 to} Zn can be increased or decreased according to the weight of the conveyed object. The load received by the portion 35 can be reduced.

In the above embodiment, the stopper 33 is engaged with the engaging portion 35 of the drive ring 11, but the direction of the air cylinder 59 is changed and the stopper 33 is connected to the engaging portion 35 of the drive ring 13. 39 may be engaged,
Although not shown, the driving rings 11 and 13 are replaced with a request.
It is also possible to provide an engaging portion with which the stopper 33 engages in the spacer 15 as in one embodiment of the invention according to item 2 ,
With these structures, it is possible to achieve the intended purpose, similarly to the above embodiment.

Further, in the above embodiment, each of the zones Z ₁ to Z ₁
Although the optical sensors 47 and 49 are arranged for each Zn, the present applicant has previously described in Japanese Patent Application No. Hei 5-10168 a light emitting section for projecting light to a predetermined object and a light reflecting section from the predetermined object. One light emitting unit in an optical sensor that includes a light receiving unit that receives light and an electrical contact that is opened and closed by the output of the light receiving unit, and detects the presence of a predetermined object based on a change in an electrical signal through the electrical contact. , One light receiving unit and two electric contacts are housed in a common case, and the output of the light receiving unit is driven to open and close the two electric contacts simultaneously, and each electric contact is connected to a special output terminal. A two-output optical sensor connected and wired was proposed.

The intended purpose can be achieved by using the two-output optical sensor instead of the optical sensors 47 and 49.

[0046]

[Effect of the invention] As described above, the invention according to claim 1
Is composed of a number of transport rollers
Between the drive ring and the drive ring fitted to the drive shaft.
Connect the power transmission belt and transport rollers
And drive stoppers with stopper mechanisms provided for each zone.
The rotation of the transport rollers for each zone.
In the belt drive roller conveyor to be stopped,
In each of the defined zones, check the transported material on the transport rollers.
Two optical sensors that emit light are installed, and one optical sensor in each zone is installed.
Sensor and one of the optical sensors in the downstream zone adjacent to it.
Are connected in series with each other, and
A joint is provided, and the stopper mechanism is provided on the drive ring.
The engaging portion and the driving shaft are arranged in each zone in parallel with each other.
Based on the operating shaft and the detection signal of the optical sensor, the piston lock
Air shaft that extends the arm and moves the operating shaft in the axial direction.
Air cylinder piston attached to cylinder and operating shaft
The movement of the operating shaft due to the extension of the rod causes the engagement portion to engage.
The stopper mechanism is connected in series.
Downstream zone light sensor and upstream zone light
When the sensor detects a load on the transport roller,
The air cylinder in the zone operates and the operating shaft moves in the axial direction
And the stopper attached to the operating shaft
The drive ring is stopped by engagement.
According to the plan, the weight and bottom shape are
To ensure that goods are stored at regular intervals.
Became possible. Further, the invention according to claim 2 is a frame.
A large number of transport rollers arranged in parallel with each other
Drive belt between the drive ring fitted to the drive shaft.
Connect and divide the transport roller into multiple zones,
The rotation of the drive ring is controlled by stopper mechanisms provided for each zone.
Stop and stop the rotation of the transport roller for each zone.
In the belt drive roller conveyor, each zone divided into multiple
In each of the two cases, two
Install optical sensors, one optical sensor in each zone and
Connect one of the optical sensors in the adjacent downstream zone in series.
And the outer circumference of the drive shaft between the drive rings.
And a spacer that has an engaging portion and
After fitting, the stopper mechanism is
The operating axis arranged parallel to the drive axis for each
Based on the detection signal, extend the piston rod to
The air cylinder that moves the moving shaft in the axial direction and the working shaft
Due to the extension of the air cylinder piston rod.
A stopper that engages with the engaging portion by the movement of the operating shaft.
And the stopper mechanism is connected to the downstream zone connected in series.
Optical sensor in the upstream zone and the optical sensor in the upstream zone
When a load is detected, the air cylinder in the upstream zone
Operates and the operating shaft moves in the axial direction, and attaches to the operating shaft.
The stopper engages with the engaging portion of the spacer, and the spacer
And stop the drive ring that co-rotates with it
Therefore, according to the present invention, the weight and the bottom face
Regardless of the shape, make sure that the goods are
It is possible to store.

The roller conveyor according to the present invention has an advantage that the number of parts is smaller than that of the conventional example, and the stopper mechanism is not a structure in which a link mechanism is combined.

[0048]

[Brief description of the drawings]

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

FIG. 2 is a partially enlarged plan view of a roller conveyor.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a plan view of a drive ring.

FIG. 5 is a view in the direction of arrow A in FIG. 4;

FIG. 6 is a side view of a drive ring.

FIG. 7 is a plan view of a drive ring.

8 is a view in the direction of arrow B in FIG. 7;

FIG. 9 is a side view of a drive ring.

FIG. 10 is a plan view of a spacer.

11 is a view in the direction of arrow C in FIG. 10;

12 is a view in the direction of arrow D in FIG. 10;

FIG. 13 is a cross-sectional view of a roller conveyor.

FIG. 14 is a cross-sectional view of a roller conveyor.

FIG. 15 is a plan view showing an arrangement of sensors.

FIG. 16 is an enlarged plan view of a stopper mechanism.

FIG. 17 is a side view of the stopper.

FIG. 18 is a plan view of a stopper.

FIG. 19 is an enlarged plan view of a stopper mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance roller 3,5 Conveyor frame 9 Drive shaft 11,13 Drive ring 15,17 Spacer 25 Transmission belt 29,41 Connection projection 31 Stopper mechanism 33 Stopper 35,39 Engagement part 43,45 Connection concave part 47,49 Optical sensor 57 Working shaft 59 Air cylinder P Conveyed object

Claims (2)

(57) [Scope of request for utility model registration] A transmission belt is connected between a number of transport rollers arranged in parallel on a frame and a drive ring fitted to a drive shaft corresponding to each transport roller, and the transport rollers are connected to a plurality of zones. In the belt drive roller conveyor which stops the rotation of the drive ring for each zone by stopping the rotation of the drive ring by the stopper mechanism provided for each zone, each zone divided into a plurality of zones, Two optical sensors for detecting a conveyed object on a conveying roller are installed, and one optical sensor of each zone and one optical sensor of a downstream zone adjacent thereto are connected in series with each other, and An engaging portion provided on the ring, the stopper mechanism, the engaging portion provided on the drive ring, and an operating shaft arranged in parallel with the drive shaft for each zone;
-Out based on the detection signal of the light sensor, the extension of the piston rod
An air cylinder for moving the actuating shaft in the axial direction by,
Attach to the operating shaft and extend the piston rod of the air cylinder.
A stopper that engages with the engaging portion by the movement of the operating shaft by the length , and the stopper mechanism is configured such that the optical sensor in the downstream zone and the optical sensor in the upstream zone connected in series are transported onto the transport roller. When an object is detected, the air cylinder in the upstream zone operates.
The operating shaft moves in the axial direction and the stopper attached to the operating shaft moves.
The drive ring is engaged with the engagement portion of the drive ring to stop the drive ring.
Belt drive roller conveyor, characterized in Rukoto allowed. 2. A transmission belt is connected between a number of transport rollers arranged side by side on a frame and a drive ring fitted to a drive shaft corresponding to each transport roller, and the transport rollers are connected to a plurality of zones. In the belt drive roller conveyor which stops the rotation of the drive ring for each zone by stopping the rotation of the drive ring by the stopper mechanism provided for each zone, each zone divided into a plurality of zones, Two optical sensors for detecting a conveyed object on a conveying roller are installed, and one optical sensor in each zone and one optical sensor in a downstream zone adjacent thereto are connected in series with each other, and a drive ring is provided. A spacer having an engagement portion on the outer periphery and co-rotating with the drive ring is fitted to the drive shaft between the drive shaft and the stopper mechanism, and the spacer is operated in parallel with the drive shaft in each zone. Axis and optical sensor -Out based on the detection signal of the capacitors, an air cylinder for moving the actuating shaft in the axial direction by extending the piston rod, trims the actuating shaft,
A stopper that engages with the engaging portion by movement of the operating shaft due to extension of the piston rod of the air cylinder , wherein the stopper mechanism comprises an optical sensor in the downstream zone and an optical sensor in the upstream zone connected in series. Detects the load on the transfer roller, the air cylinder in the upstream zone operates.
The operating shaft moves in the axial direction and the stopper attached to the operating shaft moves.
The spacer is engaged with the engaging portion of the spacer,
Belt drive roller conveyor, characterized in Rukoto stops the drive ring to rotate together bind to.