KR102532011B1 - Device for transferring with pusher type diverter conveyor - Google Patents

Abstract

The conveying device of the present invention includes a pushing unit for pushing an object along a third direction; It may include; a circulation unit which rotates and circulates the pushing unit so that the pushing unit that has pushed the object in the third direction returns to a position capable of pushing the next object again.

Description

Transfer device with pusher type diverter conveyor {Device for transferring with pusher type diverter conveyor}

The present invention relates to a transfer device provided with a diverter conveyor that vertically changes the moving direction of an object such as a plate-shaped board.

With the development of the industry, the need for an automation device that automatically transports a large amount of goods is increasing, and the demand accordingly is also increasing. A conveyor is a mechanical device that automatically and continuously transports various items, such as materials, parts, semi-finished products, and cargo, by a predetermined distance, and is mainly used as a product transport device and a moving workbench in a factory. Such conveyors form the basis of mass production methods.

There are various types of conveyors, such as a belt conveyor, a roller conveyor, and a trolley conveyor. Among them, a roller conveyor is a device in which a plurality of rollers are arranged side by side and conveys goods by rolling them over the rollers.

In order to change the moving direction of cargo on an existing conveyor, a separate direction changing device, for example, a diverter, must be used. The diverter is a device that changes the moving direction of cargo that has been moving in a certain direction, and is a device that is driven and controlled separately from the conveyor. For example, the diverter may be located at the lower part of the roller conveyor at a position for changing the direction of the roller conveyor, and when an item arrives, the diverter moves up and down on the roller conveyor to change the direction of the item. can do.

Korean Patent Registration No. 2198948 discloses a first conveyor including a plurality of rollers and an end of the conveying direction of the first conveyor, disposed to pass an extension of the conveying direction, and disposed to face a different direction from the conveying direction. A technique for changing the transfer direction of an object using a second conveyor is disclosed.

Korean Registered Patent Publication No. 2198948

An object of the present invention is to provide a conveying device capable of improving the speed of diverting for changing the conveying direction of an object being conveyed in a certain direction.

The conveying device of the present invention includes a pushing unit for pushing an object along a third direction; It may include; a circulation unit which rotates and circulates the pushing unit so that the pushing unit that has pushed the object in the third direction returns to a position capable of pushing the next object again.

The transfer device of the present invention may include a pushing unit for converting a direction of an object being transferred along a first direction into a third direction.

According to the present invention, the pushing unit may perform a closed curve circular motion. According to this, the pushing unit may move along the set path and perform a motion of pushing the object in the third direction, and then return through another path without returning to the set path.

Since it does not return to the set path, a phenomenon in which the pushing part interferes with the new entry of the next object can be fundamentally excluded.

According to the present invention, there is no need for a separate waiting time for the next object to wait until the pushing unit performing the diverting returns to the initial position. In other words, immediately after the specific object is diverted in the third direction by the pushing unit, the next object may enter the position where diverting is possible immediately.

Therefore, according to the present invention, the total transfer time can be reduced by the waiting time in the total process time.

In other words, according to the conveying device of the present invention, high-speed conveying capable of continuously diverting and conveying a plurality of objects without interruption is possible.

1 is a perspective view showing a conveying device of the present invention.
2 is a plan view showing a transfer device according to an embodiment of the present invention.
3 is a side view showing a transfer device according to an embodiment of the present invention.
4 is a front view showing a transfer device according to an embodiment of the present invention.
5 is a schematic diagram showing a transfer device.
6 is a schematic diagram showing the operation of the circulation unit.
7 is a schematic diagram illustrating an external link.
8 is a schematic diagram showing a support part.
9 is a schematic diagram showing another support of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

In this specification, redundant descriptions of the same components are omitted.

In addition, in this specification, when a component is referred to as being 'connected' or 'connected' to another component, it may be directly connected or connected to the other component, but another component in the middle It should be understood that may exist. On the other hand, in this specification, when a component is referred to as 'directly connected' or 'directly connected' to another component, it should be understood that no other component exists in the middle.

In addition, terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention.

Also, in this specification, a singular expression may include a plurality of expressions unless the context clearly indicates otherwise.

In addition, in this specification, terms such as 'include' or 'having' are only intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more It should be understood that the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Also in this specification, the term 'and/or' includes a combination of a plurality of listed items or any item among a plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

Also, in this specification, detailed descriptions of well-known functions and configurations that may obscure the subject matter of the present invention will be omitted.

1 is a perspective view showing a conveying device of the present invention. 2 is a plan view showing a transfer device according to an embodiment of the present invention. 3 is a side view showing a transfer device according to an embodiment of the present invention. 4 is a front view showing a transfer device according to an embodiment of the present invention. 5 is a schematic diagram showing a transfer device.

The transfer device shown in FIG. 1 may include a pushing unit 210 and a circulation unit 230 .

A three-dimensional space formed by three coordinate axes x, y, and z orthogonal to each other may be defined. The z-axis may be parallel to the direction of gravity. The x-axis and the y-axis may be perpendicular to each other and perpendicular to the b-axis. In this case, a direction parallel to the x-axis may be defined as the first direction a. A direction parallel to the z-axis may be defined as the second direction b. A direction parallel to the y-axis may be defined as the third direction b.

At this time, the pushing unit 210 may push the object 9 along the third direction c. For example, the pushing unit 210 may move along the third direction c while making face-to-face contact with one side of the object 9 . Due to the face-to-face contact, the object 9 whose one side is constrained by the pushing unit 210 may be moved along the third direction c by being pushed by the pushing unit 210 moving along the third direction c. The pushing unit 210 may include a push rod pushing the object 9 in a third direction while physically pressing the object 9 .

The object 9 to be transferred may have various shapes. For example, the object 9 may include various board-shaped boards.

The circulation unit 230 may rotate and circulate the pushing unit 210 so that the pushing unit 210 that pushed the previous object 10 in the third direction returns to a position capable of pushing the next object 9 again. there is.

It is preferable that the operation of pushing a plurality of objects 9 in the third direction by using a limited number of pushing units 210 is repeatedly performed. To this end, the pushing unit 210, which has completed the task of pushing the specific object 9 while moving along the third direction c from the starting position s to the ending position e, is preferably returned to the starting position s. Various methods of returning the pushing unit 210 that has reached the end position e to the start position s may exist.

According to the comparative embodiment, the pushing unit 210 linearly moved from the starting position s to the ending position e may be linearly moved from the ending position e to the starting position s in the reverse direction.

According to the return method of the comparative embodiment, the next object 9 is the moving path of the pushing unit 210 so that the pushing unit 210 departing from the end position does not interfere with the pushing unit 210 until it reaches the starting position s You cannot enter and have to wait. The waiting time of the object 9 may be a factor in increasing the total transfer time of the object 9 .

In order to reduce the waiting time of the object 9, it is recommended that the returning path of the pushing unit 210 be modified differently from that of the comparative example. For example, instead of returning the pushing unit 210 to the starting position s in a linear reciprocating motion method, the circulation unit 230 may return the pushing unit 210 to the starting position s in a rotational circulation method.

The pushing unit 210 may push or transfer the object 9 along a direction inclined to the direction of gravity, for example, a direction parallel to the ground.

The circulation unit 230 may transport the object 9 by transporting the pushing unit 210 that physically restrains the object 9 . In order to minimize the waiting time of the next object 9 waiting to be pushed or transported by the pushing unit 210 , the circulation unit 230 may rotate and circulate the pushing unit 210 .

The pushing unit 210 may transfer the object 9 disposed at the third position p3 to the fourth position while moving along the third path k3 by the circulation unit 230 .

When the pushing unit 210 reaches the end position e of the third path, the circulation unit 230 moves the pushing unit 210 along the fourth path k4, which is distinct from the third path k3, to the starting position of the third path k3. The pushing unit 210 may be returned with s.

A transfer unit for transferring the object 9 along the first direction a may be provided.

A first circulation unit 237 and a second circulation unit 238 extending along a third direction c inclined to the first direction a may be provided.

The first circulation unit 237 and the second circulation unit 238 may be formed at different positions in the first direction a.

The first circulation unit 237 may move the pushing unit 210 in the third direction c at one side of the object 9 in the first direction a.

The second circulation unit 238 may move the pushing unit 210 in the third direction c on the other side of the object 9 in the first direction a.

The object 9 may be pushed in a third direction while maintaining the first posture by the pushing unit 210 moved by the first circulation unit 237 and the pushing unit 210 moved by the second circulation unit 238. there is.

By the pushing part 210 of the first circulation part 237 and the pushing part 210 of the second circulation part 238, the object 9 is formed by two points spaced apart in the first direction a at least two points. While being supported, it may be pushed along the third direction c.

When one side of the object 9 is pushed by the two pushing parts 210 spaced apart on the first direction a, the object 9 is converted to the first posture in which one side is aligned with the false line connecting the two points and can maintain the first posture.

Meanwhile, the pushing unit 210 may be formed in a plate shape. For example, the pushing unit 210 may be formed as a plate phenomenon having a length extending from the first circulation unit 237 to at least the first circulation unit 237 and the second circulation unit 238 .

At this time, the first circulation unit 237 may move one side of the pushing unit 210 in the third direction c.

The second circulation unit 238 may move the other side of the pushing unit 210 in the third direction c.

By means of the first circulation unit 237 and the second circulation unit 238, the pushing unit 210 may move along the third direction c while maintaining the second posture inducing the first posture of the object 9. For example, when the second posture is a posture maintaining 90 degrees with respect to the third direction c, the object 9 pushed by the pushing unit 210 moving in the third direction c while maintaining the second posture also moves in the third direction c. It can be converted to the first posture maintaining 90 degrees with respect to direction c. In addition, the object 9 may maintain the first posture at least during the time interval being pushed by the pushing unit 210 .

The transfer unit may stop the transfer of the object 9 in the first direction while the object 9 is pushed in the third direction c by the pushing unit 210 .

As another example, in order to reduce the transfer time, the transfer unit may continuously transfer the object 9 in the first direction even when the object 9 is pushed in the third direction c by the pushing unit 210 .

The first pushing unit 210 connected to the first circulation unit 237 may push the object 9 as much as the first section in the third direction c.

The transfer unit may continuously transfer the object 9 pushed in the third direction c by the first pushing unit 210 in the first direction a.

By continuous transport in the first direction, the object 9 can reach the second circulation unit 238 disposed downstream of the first circulation unit 237 in the first direction a.

The second pushing unit 210 connected to the second circulation unit 238 may push the object 9 as much as the second section in the third direction c.

The object 9 pushed by the first section in the third direction c by the first pushing unit 210 and pushed by the second section in the third direction c by the second pushing unit 210 is the transport path of the transport unit. can deviate from The object 9 deviated from the transfer path of the transfer unit by the pushing unit 210 may enter another transfer path.

The first transfer unit 110 may include a plurality of rollers for transferring the object 9 in a first direction a. For example, a plurality of rollers may be arranged along the first direction a perpendicular to the third direction c.

Each roller may be rotatably formed about an imaginary axis f extending along the third direction c. An actuator for rotating the corresponding roller may be additionally provided. The plurality of rollers may transport the object 9 along the first direction a while being rotated by an actuator.

The pushing unit 210 may be disposed between rollers in the first direction a. The pushing unit 210 may push the object 9 in the third direction c while following between the rollers.

The circulation unit 230 may repeatedly transfer the object 9 loaded at the third position p3 to the fourth position p4 while circularly rotating the pushing unit 210 .

6 is a schematic diagram showing the operation of the circulation unit 230.

A first pusher 211 and a second pusher 212 physically contacting the object 9 may be provided in the pushing unit 210 . In some cases, extra push rods such as the third push rod and the fourth push rod may be added between the first push rod 211 and the second push rod 212 .

The first push rod 211 may move the object 9 from the third position p3 to the fourth position p4 while moving along the third path k3. The first push bar 211 that moved the object 9 to the fourth position p4 can escape from the third path k3 by the circulation unit 230 .

The circulation unit 230 may move the first push bar 211 along the fourth path k4 to return the first push bar 211 to the second initial position a2 corresponding to the start position of the third path. The second initial position a2 may include a position facing the object 9 disposed at the third position p3 or an initial position physically facing the object 9 disposed at the third position p3.

The circulation unit 230 may allow the second push bar 212 to enter the third path k3 during the time period during which the first push bar 211 escapes from the third path k3.

The second pusher 212 entering the third path k3 may move the object 9 newly loaded at the third position p3 to the fourth position p4 while moving along the third path k3 by the circulation unit 230 .

The circulation unit 230 may form a transport path for moving the pushing unit 210 along the imaginary closed curve t2.

The pushing unit 210 may be connected to the circulation unit 230 at an angle to the closed curve t2 outside the closed curve t2 by the connection unit 220 .

The pushing unit 210 moves along the closed curve t2 while maintaining a state disposed outside the closed curve t2 by the connection unit 220, and may push the object 9 in a portion of the closed curve t2.

The circulation unit 230 may move the pushing unit 210 along an imaginary closed curve t2.

The pushing unit 210 may push the object 9 along the third direction c while moving along the third path k3 corresponding to a partial curved section of the closed curve t2.

The pushing unit 210 may return to the second initial position a2 corresponding to the starting position of the third path k3 while moving along the fourth path k4 corresponding to the other curved section of the closed curve.

A transport chain 231 formed in a closed curve shape may be provided. The transport chain 231 may include a plurality of links connected to each other.

The pushing unit 210 may be fixed to a specific link forming the transport chain 231 .

A specific link is repeatedly cyclically moved through one section of the conveying chain 231 facing the object 9 and the other section of the conveying chain 231 facing the object 9 by the rotation of the conveying chain 231. can

The pushing unit 210 may maintain a protruding state toward the object 9 so as to push one side of the object 9 when a specific link is located in one section.

The pushing unit 210 may maintain a protruding state in the opposite direction to the direction toward the object 9 when the specific link is located in the other section.

In the circulation part 230, a transfer chain 231 formed in a closed curve shape, a first sprocket 235 on which one end of the transfer chain 231 is wound, and a second sprocket 236 on which the other end of the transfer chain 231 is wound , a driving means for rotating the first sprocket 235 or the second sprocket 236 may be provided. The driving means may include a motor or the like.

The transport chain 231 may include a plurality of links connected in series to be rotatable with each other.

The pushing unit 210 may be fixedly connected to a specific link.

A transport chain 231 in which a plurality of links are connected to each other may be provided in the circulation unit 230 .

A support 250 supporting the transport chain 231 may be provided.

The support part 250 may limit the inclination of a specific link with respect to the traveling direction of the transport chain 231 . The support unit 250 may maintain the pushing unit 210 with respect to the object 9 in a set posture.

In order to accurately push or pull the object 9 , the pushing unit 210 needs to satisfy an initially set posture, for example, a set angle with respect to the ground or a set angle with respect to the object 9 . When the pushing unit 210 is installed on a specific link among a plurality of links rotatably connected to each other, the specific link is tilted by the pushing unit 210 pressing the object 9 and the pushing unit 210 may also be tilted. . At this time, the support unit 250 may prevent the pushing unit 210 from tilting and maintain the pushing unit 210 in a set posture.

The transport chain 231 to which the pushing unit 210 is fixedly connected may include an external link 60 and an internal link 70 connected to each other. Also, the transport chain 231 may include a wheel 90 .

7 is a schematic diagram showing an external link 60 .

The outer link 60 has an installation portion 64 on both sides and an extension portion in the center, and two outer plates 62 disposed parallel to each other, coupled perpendicularly to the outer plate 62 at the installation portion 64 and parallel to each other It may include two connection pins 66 arranged in such a way.

The inner link 70 may include two inner plates disposed parallel to each other and having insertion holes into which connection pins 66 are inserted on both sides.

The wheel 90 may be disposed in the center of the connecting pin 66 in a state in which the outer link 60 and the inner link 70 are rotatably connected to each other through the connecting pin 66. The wheel 90 may be rotatably formed around the connecting pin 66 as a rotation axis.

The pushing unit 210 may be fixedly installed on the outer plate 62 or the inner plate.

8 is a schematic diagram showing the support part 250 .

A rail extending parallel to the transport direction of the object 9 may be provided on the support 250 .

A first transfer plate 251 and a second transfer plate 252 disposed to face each other with the wheel 90 interposed therebetween may be provided on the rail.

The first transfer plate 251 may be installed facing one side of the two wheels 90 respectively installed on the two connecting pins 66 provided on the outer link 60 .

The second transfer plate 252 may be installed facing the other side of the two wheels 90 respectively installed on the two connecting pins 66 provided on the outer link 60 .

The wheel 90 may come into rolling contact with the first transfer plate 251 or the second transfer plate 252 while being inserted into the groove formed between the first transfer plate 251 and the second transfer plate 252 .

9 is a schematic diagram showing another support part 250 of the present invention.

It is preferable that the wheels 90 guided by the first transfer plate 251 and the second transfer plate 252 do not come into rolling contact with the first transfer plate 251 and the second transfer plate 252 at the same time. To this end, the distance w2 between the first transfer plate 251 and the second transfer plate 252 may be larger than the diameter of the wheel 90 within a range smaller than the distance between the centers of the two adjacent wheels 90. there is.

Due to the pushing unit 210 pushing the object 9 in a protruding state toward the object 9, one wheel 90 of the two wheels 90 installed on the outer link 60 is the first transfer plate It can be cloud contacted at (251). At this time, the wheel 90 on the other side may be in rolling contact with the second transfer plate 252 .

Due to the wheel 90 on one side in rolling contact with the first transfer plate 251 and the wheel 90 on the other side in rolling contact with the second transfer plate 252, the outer link 60 is formed in the second transfer direction n with respect to the transfer direction n. It may tilt forward by an angle g2.

The pushing unit 210 may be connected to the external link 60 at an inclination in the reverse direction by a second angle.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. belong to the scope of the invention.

9 ... object 60 ... external link
62 ... outer plate 64 ... installation part
66...connecting pin 70...internal link
90 ... wheel 110 ... first transfer part
210 ... Pushing part 211 ... 1st push rod
212... second push rod 220... connection
230 ... circulation part 231 ... conveying chain
235... 1st sprocket 236... 2nd sprocket
237 ... first circulation unit 238 ... second circulation unit
250 ... support part 251 ... first transfer plate
252 ... second transfer plate

Claims (15)

a pushing unit pushing an object along a third direction;
a circulation unit rotating and circulating the pushing unit so that the pushing unit that pushed the object in the third direction returns to a position capable of pushing the next object;
including,
A transport chain to which the pushing unit is fixedly connected is provided,
The conveying chain includes an outer link, an inner link, and a wheel connected to each other,
The outer link includes two outer plates arranged parallel to each other with an installation portion on both sides and an extension portion in the center, and two connection pins vertically coupled to the outer plate at the installation portion and arranged in parallel with each other,
The inner link includes two inner plates disposed parallel to each other and having insertion holes into which the connecting pins are inserted on both sides,
The wheel is disposed in the center of the connecting pin in a state in which the outer link and the inner link are rotatably connected to each other through the connecting pin, and is rotatably formed with the connecting pin as a rotation shaft,
The pushing part is fixed to the outer plate or the inner plate,
A rail extending parallel to the transport direction of the object is provided,
The rail is provided with a first transfer plate installed facing one side of the two wheels respectively installed on the two connection pins provided on the outer link, and a second transfer plate installed facing the other side of the wheel,
The distance between the first transfer plate and the second transfer plate is larger than the diameter of the wheel,
Due to the pushing part pushing the object in a protruding state toward the object, one wheel of the two wheels installed on the outer link is in rolling contact with the first transfer plate, and the other wheel is in rolling contact with the second transfer plate. is in cloud contact with
Due to the wheel on one side in rolling contact with the first transfer plate and the wheel on the other side in rolling contact with the second transfer plate, the external link is tilted forward by a set angle to the transfer direction,
The pushing unit is inclined in a reverse direction by the set angle and is connected to the external link. According to claim 1,
The pushing unit transfers the object disposed at the third position to a fourth position while moving along a third path;
The circulation unit returns the pushing unit to the starting position of the third path while moving the pushing unit along a fourth path distinct from the third path when the pushing unit reaches the end position of the third path.
According to claim 1,
A conveying unit for conveying the object along a first direction is provided,
A first circulation unit and a second circulation unit extending along the third direction inclined to the first direction are provided,
The first circulation part and the second circulation part are formed at different positions in the first direction,
The first circulation unit moves the pushing unit in the third direction at one side of the object on the first direction,
the second circulation unit moves the pushing unit in the third direction on the other side of the object on the first direction;
The object is pushed in the third direction while maintaining the first posture by the pushing unit moved by the first circulation unit and the pushing unit moved by the second circulation unit.
According to claim 3,
The pushing part is formed in a plate shape,
The first circulation unit moves one side of the pushing unit in the third direction,
The second circulation unit moves the other side of the pushing unit in the third direction,
The first circulation unit and the second circulation unit move the pushing unit along the third direction while maintaining a second posture for inducing the first posture of the object.
According to claim 3,
The transfer unit continuously transfers the object in the first direction even when the object is pushed in the third direction by the pushing unit,
A first pushing unit connected to the first circulation unit pushes the object by a first section in the third direction,
The transfer unit continuously transfers the object pushed in the third direction by the first pushing unit in the first direction,
By continuous conveying in the first direction, the object reaches the second circulation portion disposed downstream of the first circulation portion in the first direction;
A second pushing unit connected to the second circulation unit pushes the object by a second section in the third direction,
The transfer device, wherein the object pushed by the first section in the third direction and pushed by the second section in the third direction is separated from the transport path of the transfer unit.
According to claim 1,
A plurality of rollers are provided along a first direction perpendicular to the third direction,
Each roller is formed to be rotatable about an imaginary axis extending along the third direction,
The plurality of rollers transport the object along the first direction while rotating,
The pushing unit is disposed between rollers in the first direction, and pushes the object in the third direction while following between the rollers.
According to claim 1,
A first push rod and a second push rod are provided to physically contact the object,
The first push rod moving the object from the third position to the fourth position while moving along the third path is escaped from the third path by the circulation unit;
the circulation unit moves the first pusher along a fourth path to return the first pusher to a starting position of the third path;
The circulation unit causes the second push rod to enter the third route during the time period during which the first push rod escapes from the third route,
The transfer device of claim 1 , wherein the second pusher entering the third path moves an object newly loaded in the third position to the fourth position while moving along the third path by the circulation unit.
According to claim 1,
The circulation unit forms a transport path for moving the pushing unit along a virtual closed curve,
The pushing part is connected to the circulation part at an angle to the closed curve outside the closed curve,
The pushing unit moves along the closed curve while maintaining a state disposed outside the closed curve and pushes the object in a section of the closed curve.
According to claim 1,
The circulation unit moves the pushing unit along a virtual closed curve,
The pushing unit pushes the object while moving along a third path corresponding to a partial curved section of the closed curve,
The pushing unit returns to the starting position of the third path while moving along a fourth path corresponding to another curved section of the closed curve.
According to claim 1,
A conveying chain formed in a closed curve shape is provided,
The pushing part is fixed to a specific link forming the conveying chain,
The specific link repeatedly circulates one section of the conveying chain facing the object and the other section of the conveying chain facing the object by rotation of the conveying chain,
The pushing unit maintains a state protruding from the specific link toward the object so as to push one side of the object when the specific link is located in the section on one side,
The pushing unit maintains a protruding state from the specific link in a direction opposite to the direction toward the object when the specific link is located in the other section.
According to claim 1,
A transfer chain formed in a closed curve shape, a first sprocket around which one end of the transfer chain is wound, a second sprocket around which the other end of the transfer chain is wound, and driving means for rotating the first sprocket or the second sprocket are provided,
The conveying chain includes a plurality of links connected in series to be rotatable with each other,
The pushing unit is a transfer device that is fixedly connected to a specific link.
According to claim 1,
A transport chain having a plurality of links connected to each other is provided in the circulation unit,
A support for supporting the conveying chain is provided,
The transfer device of claim 1 , wherein the support portion restricts the inclination of the specific link with respect to the travel direction of the transport chain, and maintains the pushing portion in a set attitude with respect to the object.
delete According to claim 1,
A rail extending parallel to the transport direction of the object is provided,
The rail is provided with a first transfer plate and a second transfer plate disposed to face each other with the wheel interposed therebetween,
The conveying device of claim 1 , wherein the wheel is in rolling contact with the first conveying plate or the second conveying plate in a state of being fitted in a groove formed between the first conveying plate and the second conveying plate.

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