JPH10194416A - Conveyed matter stopping device in transport conveyer and direction changing device for conveyed matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop a conveyed matter without shock by elevatably installing a convey roller driving means and a convey roller braking means on an elevating platform, and the convey roller is braked in a condition that the rotary driving of the convey roller by the convey roller driving means, is released. SOLUTION: A driving roller 20 is lifted by the lifting of an elevating platform 19 by an air cylinder 18 of each stop position S, and a driving belt 10 drives the convey rollers 9, in a conveying condition of a transport conveyer. Simultaneously, the gaps generated between the taper faces 27a, 27b, and the outer peripheral faces of a pair of convey rollers release the braking to the convey rollers 9. On the other hand, the driving belt 10 is kept into contact with the convey rollers 9 excluding that at the stop position S, to rotate and drive the same, thereby a conveyed matter on the convey rollers 9 is conveyed. An air cylinder 18 of the stop position S is operated when the conveyed matter is closed to the stop position S, thereby four driving rollers 20 are lowered with the elevating platform 19, the contact condition of the driving belt 10 with six convey rollers 9, is released, and the conveyed matter is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for stopping a conveyed article, such as a cardboard case or a pallet, at a predetermined position on the conveyer.
The present invention also relates to a device for changing the direction of a conveyed article in a conveyer for changing the conveying direction of the conveyed article stopped by the stopping device.

[0002]

2. Description of the Related Art In general, a conveyed article conveyed by a conveyer is stopped at a predetermined position, and the conveyed article is assembled, processed or packed into a box, or the stopped conveyed article is sorted. 2. Description of the Related Art A direction change device such as a device or a turning device selectively turns to the side of a transport conveyor.

As a device for stopping a conveyed object on such a conveyer, for example, a device for projecting a stop member such as a stopper plate onto the conveyer and stopping the conveyed material against the stop member, Alternatively, a device is used in which a push-up member is provided to push up the bottom surface of a conveyed article from between the drive rollers, and the conveyed state is stopped by releasing the contact state with the drive roller by pushing up the push-up member.

Another method is to stop the operation of a driving device for rotating the rollers of the conveyor, thereby stopping the rotation of the rollers and stopping the objects to be transported. An apparatus or the like that clamps on a transfer surface with a clamp device and stops the apparatus is used.

[0005] The transport device stopping device in these transport conveyors is appropriately controlled according to the type (fragility, hardness, size, shape, weight, etc.), transport speed, and transport frequency (amount) of the transport product. Conventional techniques of this type include, for example, Japanese Utility Model Publication No. Sho 59-130817, Japanese Patent Publication No. 52-27909, Japanese Patent Publication No. 4-31971, and Japanese Utility Model Publication No. Sho 62-32185. It has been disclosed.

[0006]

However, in these conveyed goods stopping devices, it is possible to stop the conveyed goods accurately and quickly at a predetermined stop position of the conveyer without giving an impact to the conveyed goods. There was a problem that it was difficult. That is, the conveyors disclosed in Japanese Utility Model Laid-Open No. Sho 59-130817 and Japanese Patent Publication No. Sho 52-27909 have a stopper or the like protruding on a conveying surface, stop a conveyed object against it, and stop. Although the transported object is turned in a direction orthogonal to the transport direction, the transported object is likely to receive a large impact force when the transported object collides with the stopper.

[0007] In particular, when the speed of the conveyor is high, the inertia force is increased, so that the impact force applied to the conveyed products is also large. As a result, agricultural products are easily damaged, and the types of transported products are easily limited, so that the range of use is limited and the durability of the stopper itself is poor.

A conveyor disclosed in Japanese Patent Publication No. Hei 4-31971 selectively drives and stops the driving of a number of conveying rollers constituting a conveying path, so that articles conveyed sequentially on the conveyor are conveyed. It can be sent forward without colliding or pressing against each other,
Even if the driving of the transport roller is stopped, the transport roller is in a free state, so that the transported object further advances due to its inertia, and the stop position is not determined, and in some cases, the transported object collides with the preceding transported object and the transported object collides. May receive an excessive impact force.

In this conveyor, it is conceivable to set a longer interval before and after the conveyed article in consideration of safety in order to prevent collision between the conveyed articles. Driver (actuator)
Is provided for one or two transport rollers, so if the transport path is long, the number of transport paths increases, the equipment cost increases, and the mechanism and control become complicated.

In a conveyor disclosed in Japanese Utility Model Publication No. 62-32185, when a sensor roller is pushed down to a conveying surface by a preceding conveyed object, a braking bracket is operated via a connecting plate, and the accumulating roller is operated by a braking roller. And the brake roller rotates in the opposite direction to stop the conveyed product.
Since the operation is performed by the rollers, the braking force is weak, the stop position is not accurately determined, and the durability of the braking roller is inferior.

In the case where the conveying direction of the conveyed object is changed by using the stopping device disclosed in each of the above publications, the conveyed object is accurately stopped at a predetermined position on the conveyer without giving an impact to the conveyed object as described above. Therefore, there is a problem that it is difficult to surely and easily change the direction of the transported object.

The present invention has been made in view of such circumstances, and the inventions according to the first to third aspects of the present invention accurately and quickly move a conveyed article on a conveyer to a stop position without giving an impact to the conveyed article. It is an object of the present invention to provide an apparatus for stopping a conveyed article on a conveyor which can be stopped at a stop position. It is an object of the present invention to provide a device for changing the direction of a conveyed product in a conveyer that can surely and easily change the direction of the conveyed product.

[0013]

In order to achieve the above object, according to the first aspect of the present invention, there are provided a plurality of transport rollers rotatably supported by a base frame, and a vertically movable roller below the transport rollers. A lifting table provided on the lifting table, a transport roller driving means for contacting the transport roller by raising the lifting table, rotating the transport roller, and releasing the contact by lowering the lifting table; It is provided with a transport roller braking means provided to contact the transport roller by lowering the elevator to brake the rotation thereof and release the braking by raising the elevator, and an elevator device for raising and lowering the elevator. I do.

With this configuration, when the elevating device provided in the middle of the transport path of the transport conveyor such as the drive roller conveyor operates, the elevator is raised, and the transport roller braking means stops the transport roller. At the same time, the transport roller driving means comes into contact with the transport roller to rotate the transport roller, and the transport roller at the stop position rotates in the transport direction.

On the other hand, when the elevating platform is lowered by the operation of the elevating device, the contact of the transport roller driving means with the transport roller is released, the transmission of the rotational driving force to the transport roller is interrupted, and the transport roller braking is performed. The transport roller is braked by the means, the rotation of the transport roller at the stop position is stopped, and the conveyed material on the transport roller stops reliably and quickly at the stop position without receiving an impact force due to a collision or the like.

The invention according to claim 2 is characterized in that the transport roller driving means and the transport roller braking means can contact a plurality of transport rollers. With this configuration, it is possible to simultaneously drive or brake the plurality of transport rollers by the transport roller driving unit and the transport roller braking unit, and to reliably stop at the stop position regardless of the size of the transported object. be able to.

The invention according to claim 3 is characterized in that the transport roller driving means is formed of a rotating driving roller or a driving belt that rotates endlessly. With this configuration, when the vertically movable drive roller or drive belt rises, they come into contact with the lower surface of the transport roller and the transport roller is driven to rotate. When the drive roller descends, the contact state is released and rotation stops. Is done.

According to a fourth aspect of the present invention, there are provided a plurality of transport rollers rotatably supported by a base frame, a lift table provided below the transfer rollers so as to be liftable and lowerable, and a lift table provided on the lift table. A transport roller driving means which contacts the transport roller by rotating the transport roller and drives the transport roller to rotate to release the contact by lowering the elevating table; and the transport roller driving means provided on the elevating table abuts on the transport roller when the elevating table lowers and rotates. Transport roller braking means for braking and releasing the braking by raising the elevator,
A lifting device for raising and lowering the lifting table, and a transfer for transferring the transported material stopped on the transport roller at the stop position by opening by the transport roller driving means and braking by the transport roller braking means to a side of the stop position of the transport roller. And a device.

According to a fifth aspect of the present invention, the transfer device is formed by a lifting conveyor provided between the transfer rollers and capable of moving up and down to a position higher than the upper surface of the transfer roller and a position lower than the upper surface of the transfer roller. By lifting the elevating conveyor, a conveyed object stopped on the conveying roller at the stop position is transferred to a delivery conveyor connected to the stopping position of the conveyor by the elevating conveyor.

With this configuration, the transport roller is stopped by opening the transport roller driving means and braking by the transport roller braking means when the elevator is lowered by the operation of the lifting device, and the transported article is stopped at the stop position of the transport roller. Is stopped. This conveyed material is transferred to a sending-out conveyor or the like connected in a state orthogonal to the stop position of the conveying conveyor, for example, by raising an elevating conveyor as a transfer device that moves up and down between conveying rollers. That is, the transported object stopped at the stop position without receiving an impact is reliably and easily changed in the direction of the sending-out conveyor by the operation of the transfer device.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. 1 to 10 show an embodiment of a device for stopping a conveyed product and a device for changing the direction of the conveyed product in a conveyer according to the present invention, and FIG. 1 shows a sorting line using the stopping device and the direction changing device. FIG. 2 is a plan view of a main part thereof, FIG. 3 is a side view thereof, FIG. 4 is a side view showing a stop device, FIG. 5 is a plan view thereof, and FIG. FIG. 7 is a perspective view, and FIG.
FIG. 8 is an enlarged view of a main part of FIG. 6, FIG. 9 is a perspective view of a main part of the stopping device, and FIG. 10 is an operation explanatory view.

In FIG. 1, a two-line conveyor 1 provided on a sorting line for apples and the like is connected to an apple sorting line 2 on the upstream side, and the conveyor is placed at a predetermined position on the downstream side of each conveyor 1. The upstream sides of the four sending-out conveyors 3a to 3d are respectively connected in a direction orthogonal to the direction a. This delivery conveyor 3a-3
A stop device 4 provided integrally with a direction changing device 5 described later is provided at a connection portion between d and each conveyor 1.

By this stopping device 4, for example, an unsealed cardboard case (conveyed product W) packed in apples and sorted by the apple sorting line 2 and conveyed by each conveyor 1 is conveyed by each sending conveyor 3a. ~ 3d
The direction is changed to each of the sending-out conveyors 3a to 3d in accordance with the work status (for example, sealing of a cardboard case and label sticking work, etc.), and after completion of the work, it is transferred to the shipping conveyor 6.

As shown in FIGS. 2 and 3, the transport conveyor 1 is formed by a drive roller conveyor 7 and is provided with a plurality of transporters rotatably provided at predetermined intervals on a base frame 8 assembled in a frame shape. It has a roller 9, a drive belt 10 provided below one end of the transport roller 9 in the longitudinal direction, and a drive roller 11 that pushes up the drive belt 10.

The drive belt 10 is formed as an endless flat belt, and the rollers 1 provided on the upstream and downstream sides of the base frame 8 are provided.
It is wound around pulleys 15 fixed to the rotating shaft of a drive motor 14 provided at the lower portion of the base frame 8 on the upstream side. The drive roller 11 is fixedly provided on the base frame 8 between the transport rollers 9 below the drive belt 10, and constantly pushes up the drive belt 10 to abut against the lower surface of the transport roller 9 with a predetermined pressure. I have.

When the drive motor 14 rotates, the contact surface side of the drive belt 10 with the transport roller 9 rotates via the pulley 15 in the direction shown by the arrow B (counter transport direction).
The rotational force of the drive belt 10 is transmitted to each of the transport rollers 9 that are in contact with the drive belt 10, and the transport rollers 9 rotate in the directions indicated by arrows C, respectively.
Is transported in the transport direction a.

The above-mentioned delivery conveyor 3 of the conveyor 1
Stop at which the transported object W placed on the transport roller 9 is stopped at the connection position with the delivery rollers 3a to 3d (hereinafter, this connection position is referred to as a stop position S) at the connection position with the transport rollers a to 3d. A device 4 and a direction changing device 5 for sending the stopped conveyed article W and changing the direction in the direction of the conveyors 3a to 3d are provided. Hereinafter, the stopping device 4 and the direction changing device 5 will be described with reference to FIGS.

The stopping device 4 has an air cylinder 18 as an elevating device fixed below the one end of the conveying roller 9 on the frame 17 of the base frame 8 at the stopping position S, and the air cylinder 18 can be moved up and down. An elevating platform 19 having a length corresponding to, for example, approximately eight transport rollers 9 is fixed to the shaft 18a in a horizontal state along the transport direction A of the transport conveyor 1.

The lifting table 19 is bent in an L shape, and a mounting plate 21 fixed to the tip of the shaft 18a of the air cylinder 18 is fixed to the lower surface of the horizontal wall 19a. In addition, four drive rollers 20 are rotatably mounted on the vertical wall 19b of the elevating table 19 at regular intervals.

As shown in FIG. 8, the drive roller 20 has flanges 20a formed at both ends, and a shaft hole formed in a shaft portion 20b between the flanges 20a has a screw portion 22a formed at the tip. The member 22 is inserted. The screw portion 22a of the shaft member 22 is provided in the hole 2 provided in the vertical wall 19b of the lifting table 19.
The drive roller 20 is supported by the lifting platform 19 in a cantilevered state by being fixed by the nut 24 via 3. The driving roller 20 and the driving belt 10 constitute a conveyance roller driving unit. The driving belt 10 moves in the direction of arrow B in FIG.
0 rotates in the direction of arrow D, and the transport roller 9 rotates in the direction of arrow C.

Each of the driving rollers 20
Between the three brake mounting plates 26 are mounted vertically and vertically adjustable (in the direction indicated by the arrow in FIG. 8) so that the position of the brake mounting plates 26 can be adjusted. The brakes 27 are fixed respectively. The roller brake 27 is formed of, for example, rubber or the like having a predetermined hardness and a friction coefficient. The shape of the roller brake 27 is an inverted trapezoidal cross section having a narrow lower surface side and a wide upper surface side and tapered surfaces 27a and 27b on both side surfaces. Is presented.

The roller brake 27 is disposed at a substantially central position of the pair of transport rollers 9 at the stop position S and at a predetermined interval above the drive belt 10 in the transport state. Then, the four drive rollers 20 and the three roller brakes 27 move up and down at the same time via the elevating table 19 by the elevating operation of the air cylinder 18.

The drive roller 20 with respect to the lift 19
Upper surface position and the tapered surface 27a of the roller brake 27,
The position of 27b is such that the elevator 19 rises and the drive roller 20
At least at the position where the upper surface of the drive roller 10 is in contact with the drive belt 10, the tapered surfaces 27 a and 27 b of the roller brake 27 do not contact the transport roller 9, and the elevator 19 descends, and the upper surface of the drive roller 20 Away from the taper surfaces 27a, 27b of the roller brake 27.
Are set so as to come into contact with the outer peripheral surfaces of the conveying rollers 9 facing each other.

On the other hand, the direction changing device 5 has three lifting conveyors 30 provided between the transport rollers 9 at the stop position S, as shown in FIGS. Note that the three elevating conveyors 30 have the same configuration except that the intervals are different from each other, and therefore, the description will be given with the same reference numerals. The elevating conveyor 30 has an endless and belt-shaped conveyor belt 31. The conveyor belt 31 has a substantially triangular shape.
It is wound between the rollers 32 to 34.

The roller 32 is rotatably mounted on a rotating shaft 35 provided above the frame 17, and its position is fixedly provided. The roller 33 provided below the roller 32 is rotatably provided at the lower end of the roller support plate 36 and is provided so as to be rotatable (tilted) in the direction of arrow G together with the roller support plate 36. The upper end of the roller support plate 36 is connected to a tension adjustment member 37 fixed to the frame 17, and the tension adjustment member 37 adjusts the tension of the transport belt 31 when the roller 33 is tilted.

The roller 34 has one end on the frame 17.
The other end is rotatably provided via a mounting plate 39 at the tip of a roller support plate 38 extending in the longitudinal direction of the transport roller 9 at the other end. A cylinder connecting plate 40 is fixed to the tip of the roller support plate 38, and the tip of the shaft 41 a of the air cylinder 41 is connected and fixed to the lower part of the cylinder connecting plate 40 via a connecting member 42. The air cylinder 41 is provided so as to be rotatable (tilted) in a direction indicated by an arrow in FIG. 6 by a rotatably supported lower end of the air cylinder 41 by a bracket 43 of the frame 17.

A drive motor 45 is provided below the frame 17, and a rotation shaft of the drive motor 45 is connected to the rotation shaft 35 via a pulley 46 (or sprocket) and a belt 47 (or chain). It is connected to a pulley 48 (or sprocket) fixed at a substantially central portion in the longitudinal direction. When the drive motor 45 rotates, the rotation shaft 35 rotates, and the three rollers 32 fixed to the rotation shaft 35 respectively rotate, so that each of the transport belts 31 simultaneously rotates in the transport direction E. .

The rollers 33, the roller support plate 38, the air cylinder 41, and the like are provided rotatably (tilt), so that the transport belts 31 of the respective lifting conveyors 30 are provided.
6 is configured such that the roller 34, which is rotatably mounted on the mounting plate 39 by the operation of the air cylinder 41, rotates about the roller 32, that is, moves up and down in the direction of the arrow in FIG. ing.

When the conveyor 30 is raised by the operation of the air cylinder 41 in the longitudinal direction of the transport roller 9, the transport belt 31 located between the roller 32 and the roller 34 is moved upward by the upper surface of the transport roller 9. When the conveyor belt 3 projects above a predetermined dimension and descends,
1 is set so as to be positioned below the upper surface of the transport roller 9 while being inclined.

Next, the stopping device 4 and the direction changing device 5
Will be described with reference to FIG. First,
A conveyed product W composed of unsealed cardboard cases sorted and boxed in the apple sorting line 2 is transported on the conveyor 1
Conveyed by. In the transport state in which the transport object W is transported by the transport conveyor 1, the air cylinder 18 at each stop position S operates to raise the elevator 19, and as shown in FIG. Drive belt 10
To rotate the transport roller 9 in the direction of arrow C.

Further, the roller brake 27 is raised by the raising of the elevator 19, and the tapered surfaces 27a and 27b are
There is a predetermined gap t1 with respect to the outer peripheral surface (outer peripheral line) of the pair of conveying rollers 9 facing each other, and the braking of the conveying rollers 9 by the roller brake 27 is released. On the other hand, the transport rollers 9 other than the respective stop positions S of the transport conveyor 1 are rotationally driven with the drive belt 10 always in contact with the transport rollers 9, whereby the articles W on the transport rollers 9 are transported in the transport direction A. .

In this transport state, the transported object W is transported to the downstream side and is transferred to a predetermined position (for example, the most upstream delivery conveyor 3).
When the transporting object W reaches the stop position S (the connection position a), the transported object W is stopped by the stopping device 4. Note that the transported object W stops at the stop position S in front of the transport conveyor 1 by a detection signal of a detection sensor 49 (see FIG. 1) provided corresponding to each stop position S, for example. Is controlled by the control device 50 (see FIG. 1) so as to stop at the stop position S one position behind.

The stop of the transported object W at the stop position S is performed as follows. That is, when the conveyed object W is conveyed and approaches the stop position S, the conveyed object W is detected, for example, by the detection sensor 49 at a position before the stop position S by a predetermined distance. Then, the air cylinder 18 of the stop device 4 at the stop position S operates to lower the elevator 19.

The lowering of the elevating position 19 causes the
As shown in (b), the three drive rollers 20 are lowered, the pushing up force of the drive belt 10 by the upper surface thereof is released, and the upper surface of the drive belt 10 is separated from the lower surface of the transport roller 9 by a predetermined dimension t2. As a result, the contact state of the drive belt 10 with the transport roller 9 is released, the transmission of the rotational driving force to the transport roller 9 is interrupted, and the six transport rollers 9 in the stop device 4 are in a free state. Become.

Further, when the roller brake 27 is lowered by the lowering of the elevating platform 19, the roller brake 27 is pushed between the pair of transport rollers 9 almost simultaneously with the interruption of the transmission of the rotational driving force to the transport rollers 9 by the drive belt 10. The tapered surfaces 27a and 27b on both sides thereof come into contact with the outer peripheral surfaces of the pair of conveying rollers 9 at a predetermined pressure. Due to the contact of the roller brake 27, a braking force is applied to the transport roller 9, and the rotation of the transport roller 9, which tends to rotate in a free state due to inertia, is promptly stopped.

That is, the lowering of the elevator 19 causes the transmission of the rotational driving force to the transport roller 9 to be interrupted and the braking by the roller brake 27 to be performed almost simultaneously, and among the eight transport rollers 9 located at the stop position S, The rotation of the six transport rollers 9 except for the transport rollers 9 on both sides is quickly stopped. When the six transport rollers 9 stop, the transported object W stops at the stop position S. At this time, the transported object W stops without receiving any impact force due to collision with a stopper plate or the like.

The conveyed object W moves slightly forward due to its inertia due to the stop of the conveying roller 9, but by appropriately controlling the stop start position of the conveying roller 9 (the operation start timing of the air cylinder 18). Stopping can be reliably performed on at least six transport rollers 9 located in the stopping device 4.

When the transported object W stops at the stop position S, the transported object W is turned by the operation of the direction changing device 5 and transferred to, for example, the delivery conveyor 3a as follows. That is, when the transported object W stops at the stop position S, a stop sensor (not shown) detects this stop state, and the air cylinder 41 is first activated by a control signal from the control device 50 based on a detection signal of the stop sensor. I do.

By the operation of the air cylinder 41, as shown by a two-dot chain line in FIG. 6, the shaft 41a advances, and the connecting member 42, the cylinder connecting plate 40, and the roller supporting plate 38 rise in the direction of the arrow. The transport belt 31 of the elevating conveyor 30 rises, and the transport belt 31 between the rollers 32 and 34 protrudes from the upper surface of the transport roller 9.

After a predetermined time has elapsed from the start of the operation of the air cylinder 41 (or substantially simultaneously with the operation of the air cylinder 41), the drive motor 45 is driven to rotate. By the rotation of the drive motor 45, the transport belt 31 of the elevating conveyor 30 rotates, and the stopped transported articles W positioned on the three transport belts 31 are moved in the transport direction E of the transport belt 31,
That is, the sheet is conveyed in a direction orthogonal to the conveying direction a of the conveyor 1 and is transferred onto the sending-out conveyor 3a.

The conveyed material W transferred onto the sending-out conveyor 3a is appropriately transferred to the downstream side of the sending-out conveyor 3a, for example, by sealing a lid of an unsealed cardboard case, attaching a grade label, or the like. The work is performed appropriately and transferred to the shipping conveyor 6 (see FIG. 1). And
The stop and change of direction of the conveyed goods W conveyed by the conveyer 1 are controlled by the control device 50 based on detection signals of various sensors, and the conveyed goods W conveyed by one conveyer 1 are Plural delivery conveyors 3a
To 3d as appropriate.

As described above, in the stopping device 4 of the above-described embodiment, the driving roller 20 is mounted on the elevating table 19 provided at the stopping position S of the conveyor 1, and the driving belt 10 is raised by raising the driving roller 20. The transport roller 9 is rotated in contact with the transport roller 9, and the drive roller 20 is rotated.
As the contact between the drive belt 10 and the transport roller 9 is released by the lowering of the roller and the rotation of the transport roller 9 is stopped, the transported object W can be stopped without giving an impact force or the like.

Further, a roller brake 27 is mounted on the elevating table 19, and the tapered surfaces 27 a and 27 b of the transport roller 9 at the stop position S are
In order to contact the outer peripheral surface of the
When the drive roller 20 is lowered, the transmission of the rotational driving force of the drive belt 10 is interrupted, and the transport roller 9 in a free state is moved.
The roller brake 27 can be stopped quickly.

In particular, the elevation of the drive roller 20 and the elevation of the roller brake 27 are synchronized by the elevator 19, and the roller brake 27, which is formed of an elastic material and has tapered surfaces 27 a and 27 b, is moved upward between the pair of transport rollers 9. , The transport roller 9 in a free state can be instantaneously stopped by the roller brake 27, and the transported object W can be stopped accurately and stably at the stop position S.

As a result, for example, even in the case of a conveyed article W in which agricultural products such as apples are stored in a cardboard case, there is no pressure contact between the agricultural products in the case due to impact, and the like.
While being able to reliably prevent damage to agricultural products,
Damage to the cardboard case itself is also prevented.

Further, since the conveyed object W can be stopped without hitting the stopper plate or the like, no impact noise or the like is generated when the conveyed object W is stopped, the working environment can be improved, and the conveyed object W can be improved as in the prior art. Since the impact force due to the end does not act on the transport conveyor 1 itself, the stopping device 4, the direction changing device 5, and the like, the durability of these devices can be improved, and the highly reliable stopping device 4 and the like can be obtained. .

Further, since four driving rollers 20 and three roller brakes 27 are provided on the elevator 19 so that the stop position 4 can correspond to approximately eight transport rollers 9, the height of the elevator 19 is reduced. By the raising and lowering operation, at least six transport rollers 9 can be stopped almost simultaneously, and the transported object W is stopped at the stop position S regardless of the type of the transported object W or the like.
And the stopping device 4 having high versatility can be obtained.

In particular, the positional relationship between the drive roller 20 and the roller brake 27 attached to the elevator 19 is appropriately set by, for example, adjusting the position of the brake mounting plate 26 with respect to the elevator 19, so that the transport roller 9 can be adjusted. Therefore, the degree of freedom in design is increased, for example, the braking start timing for the vehicle can be set in a wide range, and it is possible to easily cope with various types of transported objects W.

One drive roller 20 and one roller brake 27 are made to correspond to a pair of transport rollers 9, and these are moved up and down by one air cylinder 18.
The configuration of the stop device 4 is simplified, and an increase in equipment cost can be suppressed.

On the other hand, according to the direction changing device 5, since the three conveyable elevating conveyors 30 with different arrangement intervals are provided between the conveying rollers 9 at the stop position S, the elevating conveyor 30 is stopped by the elevating conveyor 30. The transported object W stopped by the device 4 is transferred by the transport belt 31 of the elevating conveyor 30 to
It can be reliably transferred to one of the delivery conveyors 3a to 3d.

In particular, the conveyed article W reliably stopped at the predetermined stop position S by the stopping device 4 is automatically moved from the conveying rollers 9 onto the conveying belt 31 of the elevating conveyor 30 rising from the bottom side thereof. Therefore, the transported object W can be changed in direction and transported in a stopped state. As a result, no impact force or the like is applied to the transported object W at the time of the direction change, and the direction of the transported object W to the sending-out conveyors 3a to 3d can be surely and stably performed.

The direction changing device 5 is provided so as to be able to move up and down the conveyor 30 between the transport rollers 9 and is arranged so as to be functionally connected to the stopping device 4.
The two devices 4 and 5 can be used efficiently without any adverse effect on the structure, the work efficiency of the transfer operation can be improved, and the direction changing device 5 is connected to the stop device 4. By integrally providing them, it is possible to further suppress an increase in facility costs of the two devices 4 and 5.

In the above embodiment, the conveyor 1 connected to the apple sorting line 2 has been described. However, the present invention is not limited to this, and other agricultural product sorting and shipping lines, electronic Equipment assembly line,
The present invention can be applied to transport conveyors used in various fields such as a bookbinding line, a production line for various apparatuses, a supply and discharge line in a product and parts warehouse, and the like.

In the above embodiment, the stopping device 4
Is configured to stop and control at least six transport rollers 9. However, for example, the stop of five or less or seven or more transport rollers 9 may be controlled. The number of the lifting conveyors 30 is not limited to three, but may be two.
An appropriate number equal to or more than the number can be adopted.

Further, in the above embodiment, the drive roller 20 and the roller brake 27 are mounted on the lift table 19 so as to be moved up and down simultaneously. For example, the drive roller 20 and the roller brake 27 are moved up and down separately. The control device 50 may be configured to operate the drive roller 20 and the roller brake 27 simultaneously, for example, or with a time difference.

In the above-described embodiment, the transport roller driving means is constituted by the drive belt 10 capable of coming into contact with and separating from the transport roller 9 of the transport conveyor 1 and the drive roller 20 capable of moving the drive belt 10 up and down. For example, it may be constituted only by a drive belt which can be moved up and down and can contact the transport roller 9, or may be constituted only by a drive roller which can be moved up and down.

The transport roller braking means is also provided with a roller brake 27 which is pushed between the pair of transport rollers 9 from above.
However, the present invention is not limited to this. For example, an appropriate roller braking unit such as a roller braking unit that abuts on each roller 9 to apply a brake can be used. Further, in the above embodiment, the lifting mechanism of the lifting table 19 and the lifting conveyor 30, the form and structure of the lifting conveyor 30, the shape of the roller brake 27,
The stop and transfer control method and the like by the control device 50 are merely examples, and it goes without saying that various changes can be made without departing from the spirit of each invention.

[0068]

As described in detail above, claims 1 to 3
According to the invention described above, the transport roller driving unit and the transport roller braking unit are provided on the lift table so as to be able to move up and down, and the transport roller is braked by the transport roller braking unit in a state where the rotation of the transport roller by the transport roller driving unit is released. By letting
The transported object on the transport conveyor can be accurately and quickly stopped at the stop position without giving an impact to the transported object.

The invention according to claim 4 or 5 is characterized in that, in addition to the effects of the invention according to claims 1 to 3, the lifting conveyer is provided between the conveyance rollers at the stop position so as to be able to move up and down. It is possible to reliably and easily change the direction of the conveyed product that has stopped.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a sorting line using a device for stopping a transported object and a direction changing device for the transported item in a transport conveyor according to the present invention;

FIG. 2 is a plan view of a main part of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a side view showing the stopping device.

FIG. 5 is a plan view of the same.

FIG. 6 is a view taken along line AA of FIG. 5;

FIG. 7 is a view taken on line BB of FIG. 5;

FIG. 8 is an enlarged view of a main part of FIG. 6;

FIG. 9 is a perspective view of a main part of the stopping device.

FIG. 10 is an explanatory diagram of the operation.

[Explanation of symbols]

 1 ······ Conveyor 3a to 3d ······················································································ ··············································································································· Driving roller 14 Driving motor 17 Frame 18 Air cylinder 19 Lifting table 20 ········ Drive roller 26 ····· Brake mounting plate 27 ······ Roller brake 27a, 27b ··· Tapered surface 30 ·········· Elevating conveyor 31 ······ Conveyer belt 35 ····· Rotating shaft 36, 38 ···· Roller support plate 41 ··· ----- air cylinder 45 ........ drive motor S ········· stop position W ········· conveyed

Claims (5)

[Claims] A plurality of transport rollers rotatably supported by a base frame, a lift platform provided below the transport rollers so as to be movable up and down, and the transport rollers provided on the lift platform by raising the lift platform. Transport roller driving means for rotating the transport roller in contact with and releasing the contact by lowering the elevating table;
A transport roller braking means provided on the lift platform to contact the transport roller by lowering the lift platform to brake its rotation and release the braking by raising the lift platform, and an elevator device for raising and lowering the lift platform. An apparatus for stopping a conveyed object in a conveyer, comprising: 2. The apparatus according to claim 1, wherein said transport roller driving means and said transport roller braking means can contact a plurality of transport rollers. 3. An apparatus according to claim 1, wherein said transport roller driving means is formed of a rotating drive roller or an endlessly rotating drive belt. 4. A plurality of transport rollers rotatably supported by a base frame, a lift platform provided below the transport rollers so as to be movable up and down, and the transport rollers provided on the lift platform by raising the lift platform. Transport roller driving means for rotating the transport roller in contact with and releasing the contact by lowering the elevating table;
Transport roller braking means provided on the lift table to contact the transfer roller by lowering the lift table to brake its rotation and release the braking by raising the lift table, a lifting device for raising and lowering the lift table, A transport device for transporting a transported object stopped on the transport roller at the stop position by opening by the transport roller driving unit and braking by the transport roller braking unit to a side of the stop position of the transport roller. A device for changing the direction of a conveyed product on a conveyer. 5. The transfer device is formed of a lifting conveyor provided between the transport rollers and capable of moving up and down to a position higher than an upper surface of the transport roller and a position lower than an upper surface of the transport roller. The conveying conveyor according to claim 4, characterized in that the conveyed object stopped on the conveying roller at the stop position is transferred by an elevating conveyor onto a sending-out conveyor connected to the stopping position of the conveying conveyor. Direction change device for conveyed goods.