JP3024894B2 - Transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying apparatus suitable for conveying and stacking bagged objects to be conveyed.

[0002]

2. Description of the Related Art Conventional conveyors include belt conveyors, screw conveyors, bucket conveyors, and the like.
There are various things.

[0003]

However, since the belt tension of the belt conveyor changes with time, the maintenance of the belt conveyor is troublesome, and the belt conveyor is not suitable for carrying up and down.

A conventional screw conveyor of a type in which a helical rotating body is rotated in a pipe is suitable for conveying a powder or a granular material, but is not suitable for conveying other forms. It was not suitable for vertical transportation.

[0005] The bucket conveyor is advantageous in that there is no restriction on the form of the object to be conveyed and it is also suitable for ascending and descending conveyance. There is a disadvantage that the object to be conveyed is easily damaged at the time of taking out from the bucket.

In addition, in the case of each conventional transfer device, if the objects to be transferred are stacked after the transfer, a separate stacking device is required. The present invention has been made in view of the problems of the conventional technology described above, and is suitable for transporting a delicate transportable object that is easily damaged or ascending and descending, and is most suitable for stacking the transported object after the transport. It is another object of the present invention to provide a transport device capable of stacking very smoothly and quietly.

[0007]

The present invention has the following features to attain the object mentioned above. That is, the transport apparatus of the present invention, a pair of rotating bodies having a helical blade is disposed in parallel, each winding direction of rotation of the spiral blade it becomes opposite directions, opposite to each other direction of rotation the rotary member to adapted to rotate synchronously, the two rotary bodies be between on its back side provided is a stopper member extending along the axial direction of the rotating body, wherein one rotary body of the spiral blade
One side of the object to be transported is locked to the root, and the spiral of the other rotating body
The other side of the object to be conveyed is locked to the blade, and the stopper member is provided.
The front part of the object to be transported is locked to
Transports the object in the axial direction of the rotating body.
In the transfer device described above, the two rotating bodies are connected to a gear device.
And the rotation axes of the two rotating bodies are substantially vertical.
And the spiral blades at the starting ends of the two rotating bodies are directed toward the starting ends.
It has a tapered shape, and the two rotating bodies
At the start end of the
The end of the conveyor is located and the spirals at the beginning of both rotors
A fixed guide portion between the blade and the end of the belt conveyor
Material is installed, and a transport pair is placed at the end of the belt conveyor.
Vertical direction with the leveling member leveling the elephant urged downward
Is provided so as to be rotatable.

[0008]

[0009]

[0010]

[0011]

[0012] Further, it is possible to provide an air ejector at the end of the belt conveyor for blowing air downward from the belt conveyor toward an object to be conveyed, which moves on the fixed guide member. This also has the effect of smoothing the transfer of the object to be transferred from the belt conveyor to the rotating body.

The rotating shafts of the two rotating bodies are arranged substantially vertically,
An accumulator may be provided on the upper part of both rotating bodies. In that case,
The stacking device includes a retractable stopper member that prevents the transport object from advancing, a pushing member that pushes the transport object loaded on both rotating members in a direction approaching the stopper member, A first actuator is provided for moving the moving body back and forth, and a second actuator is provided for moving the pushing body up and down.

The objects to be transported, which are prevented from moving forward by the stopper member, are sequentially stacked on the upper part of the rotating body. The first actuator advances the pushing body when a set number of objects to be conveyed are stacked, and pushes out the object to be conveyed from above the rotating body. At this time, the stopper member is retracted to allow the transport target to move forward. After the pushing of the object to be conveyed is completed, the first actuator retreats and returns the pushing body to the initial position. The second actuator raises the pusher while the pusher returns to the initial position, so that the pusher does not interfere with a subsequent object to be conveyed.

If the pitch of the spiral blades at the end portions of the two rotating bodies is larger than the pitch of the spiral blades at the other portions except for the end portions, the pushing body is moved forward and backward when the pushing body advances. Interference can be reliably prevented.

[0016]

The object to be transported has one side locked to the spiral blade of one rotating body, the other side locked to the spiral blade of the other rotating body, and the front end locked to the stopper member. And inserted into both rotating bodies.

Since the winding directions of the two spiral blades are opposite and the rotation directions of the two rotary members are opposite, when the rotary members are rotated, the object inserted into both the rotary members slides on the two spiral blades. Then, it is guided by the two spiral blades and moves in the axial direction of the rotating body.

The leveling member pushes the object to be conveyed from above to level it flat, so that the object to be conveyed easily enters the spiral blades of both rotating bodies. The air ejector pushes the object to be conveyed in the process of moving from the belt conveyor to the rotating body toward the rotating body, and also prevents the object to be carried from jumping.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. This embodiment is an embodiment in which workpieces (objects to be transported) are packed by packing a predetermined number of bags of easily breakable food having a spherical shape with a diameter of 7 to 8 mm, and stacking them.

First, the configuration of the transfer device will be described.
FIG. 1 is a schematic front view of a transfer device according to the present invention, and FIG.
FIG. 2 is a side view of the transfer device. The transfer device includes a pair of left and right rotating bodies 10A, 1 arranged in parallel with the rotation axis directed vertically.
0B. The rotating bodies 10A and 10B are the shaft 1
The spiral blades 12A and 12B are spirally wound around 1A and 11B, respectively. Spiral blades 12A, 12
B are wound in opposite directions.

The rotating bodies 10A and 10B are driven to rotate by a driving device (not shown). That is, the driving device rotates the driving shaft 13 and the driving shaft 1
3 is transmitted to the shafts 11A and 11B by the respective gear units 14A and 14B.
1B are rotated in opposite directions.
In this embodiment, the shaft 11A rotates in the direction of arrow X in the figure, and the shaft 11B rotates in the direction of arrow Y.

The spiral blades 12A, 12B at the starting ends of the rotating bodies 10A, 10B are tapered toward the starting ends. Further, the pitch of the spiral blades 12A, 12B at the end portions of the rotating bodies 10A, 10B is slightly larger than the pitch at other portions.

An end of the belt conveyor 20 is arranged near the start of the rotating bodies 10A and 10B. FIG. 3 is a schematic plan view around the starting ends of the rotating bodies 10A and 10B.
As shown in this figure, the belt conveyor 20
The belt 21 has a plurality of belts 21, and each belt 21 is provided with partition protrusions 21 a at a predetermined pitch. The work W is placed between the partition projections 21a and 21a, and is conveyed in the horizontal direction.

A lower guide plate (fixed guide) having a substantially triangular shape in plan view is provided between the two belts 21 at the end of the belt conveyor 20 and the spiral blades 12A and 12B at the start ends of the two rotating bodies 10A and 10B. Member) 2
2 is fixed. The upper surface of the belt conveyor 20 and the upper surface of the guide plate 22 are substantially flush, and the spiral blades 12A, 12B located on both sides of the guide plate 22
(See FIG. 1).

At the end of the belt conveyor 20, a leveling device 30 and an air injector 40 are installed. Leveling device 30
Has a wide pressing body (leveling member) 31 for holding the work W conveyed by the belt conveyor 20, and the pressing body 31 is pivoted to the upper part of the belt conveyor 20 via the support 32 and the support shaft 33. It is freely supported. The pressing body 31 is biased by its own weight in a direction approaching the belt conveyor 20 (that is, downward), and when the work W passes under the leveling device 30, the pressing body 31 presses the work W downward. , The work W is evenly leveled.

The air injector 40 is installed at a position closer to the rotating bodies 10A and 10B than the leveling device 30.
The air injector 40 is connected to the guide plate 22 from its tip.
Compressed air is injected toward the base end of the airbag. The compressed air injected from the air injector 40 is blown onto the work W in the process of moving from the belt conveyor 20 to the guide plate 22, and the work W is rotated by the rotating bodies 10A and 10A.
B is pushed onto the spiral blades 12A and 12B, and the work W is pressed from above so as not to jump up, so that the work W is smoothly transferred from the belt conveyor 20 to the spiral blades 12A and 12B by a synergistic effect of these. ing.

The work W is placed on one side of the spiral blade 12A of the rotating body 10A, and the other side is placed on the spiral blade 12B of the rotating body 10B, and is transferred to the rotating bodies 10A and 10B. The rotation of the blades 12A and 12B further advances the blade.

A stopper plate (stopper member) 50 arranged at the same height as the rotating bodies 10A, 10B is installed upright on the back of the rotating bodies 10A, 10B. The stopper plate 50 is provided with the rotating body 10A,
When the rotating bodies 10A and 10B rotate in a state where the workpiece W abuts on the stopper plate 50, the workpiece W rises while sliding on the spiral blades 12A and 12B. Will be done. Then, the works W that have reached the tops of the spiral blades 12A and 12B are sequentially stacked.

The sensor 9 is located between the rotating bodies 10A and 10B and substantially at the center of the rotating bodies 10A and 10B in the height direction.
0 is set. This sensor 90 is connected to the rotating body 10
The work W conveyed upward by A and 10B is counted.

An accumulator 60 is provided above the rotating bodies 10A and 10B. FIGS. 4 and 5 are a schematic side view and a schematic plan view, respectively, of the integration device 60.
0 is configured as follows. The stacking device 60 has a pair of side plates 61 fixed so as to be located on both sides of the work W stacked on the rotating bodies 10A and 10B. The side plate 61 has an L-shape in plan view, and regulates movement of the work W in the left-right direction.

A door plate (stopper member) 62 is rotatably attached to a front portion of each side plate 61. The door plate 62 is horizontally rotated 90 degrees by an air-driven actuator 63. When the door plate 62 is positioned as shown by the solid line in FIG. 5, the closed state is maintained. Normally, the closed state is maintained, and the work W loaded on the rotating bodies 10A and 10B moves forward. To block.
The distance between the two door plates 62 at the time of this closing is set to a width that allows the work W to pass through but the pusher 65 described later to pass through. Then, the door plate 62 is positioned as shown by a two-dot chain line in FIG. 5 and is in an open state, and the work W can move forward.

In front of the door plate 62, three upper guide plates 64 arranged in parallel are provided. The guide plate 64 is provided at the same height as the tops of the spiral blades 12A and 12B. The work W slides on the guide plate 64 and is transported to the holder 100 installed further forward of the guide plate 64. It has become so.

A pusher (pushing body) 65 is disposed between the side plates 61 and at the rear side thereof. Pusher 6
5 is a work W loaded on the rotating bodies 10A and 10B.
And a horizontal plate 6 rotatably attached to the upper end of the upright plate 66 via a hinge 72.
7 are provided.

The lower end 68 of the upright plate 66 is bent forward at a substantially right angle. However, the spiral blades 12A, 12B
The size and the position are such that they do not interfere with the work W loaded on the top of the.

The horizontal plate 67 is urged downward by a spring 69, and normally maintains a horizontal posture. Then, the number of works W equal to or greater than the set number is set on the rotating bodies 10A and 10B.
When are stacked, the horizontal plate 67 rotates upward and escapes.

The pusher 65 is supported by an air-driven actuator (first actuator) 70 so as to be able to move back and forth. The actuator 70 is supported by a separate air-driven actuator 71 so as to be able to move up and down, so that the pusher 65 can move up and down.

Normally, the actuator 70 retracts the pusher 65, and the actuator 71 lowers the pusher 65. In this state, the side plate 61
And the part surrounded by the door plate 62 and the pusher 65,
The works W can be stacked.

Next, the operation of the transfer device will be described. Work W conveyed by belt conveyor 20
Is a leveling device 30 at the end of the belt conveyor 20.
, And then the spiral blades 12 of the rotating bodies 10A and 10B are smoothly and sequentially reduced by the action of the air injector 40.
Transfer to A, 12B.

The work W continues to advance by the rotation of the spiral blades 12A, 12B even after having moved onto the spiral blades 12A, 12B, and hits the stopper plate 50. As a result, the work W, which has been prevented from advancing, rises by sliding on the spiral blades 12A and 12B. The workpiece W is counted by the sensor 90 during the ascent.

The workpiece W lifted by the rotating bodies 10A and 10B is moved to the spiral blades 12A and 12A as shown in FIGS.
They are sequentially stacked at the top of 12B. When a predetermined number of works W are counted by the sensor 90,
At the same time as the actuator 63 operates to open the door plate 62, the actuator 70 operates to move the pusher 65 forward. The pusher 65 is connected to the lower end 68 of the upright plate 66.
While hanging on the lower side of the lowermost work W stacked, push the work W forward in the state of being stacked,
The work W is conveyed to the holder 100 while sliding on the guide plate 64. When the workpiece W passes through the door plate 62, the actuator 63 closes the door plate 62, and the door plate 62
Prevents the subsequent work W stacked on the spiral blades 12A, 12B from advancing.

Since the pitch of the spiral blades 12A, 12B at the ends of the rotating bodies 10A, 10B is increased, the lower end 6 of the upright plate 66 when the pusher 65 advances.
8 can be prevented from catching on the subsequent work W that is being raised.

After the workpiece W has been delivered to the holder 100, the actuator 70 retracts the pusher 65, and the actuator 71 operates to slightly raise the pusher 65 to a predetermined height with a slight delay from the retraction. After this, the pusher 65 continues to retreat through the door plate 62 while being maintained at the predetermined height, and when approaching the initial position, is lowered by the actuator 71 and returns to the initial position.

The reason why the pusher 65 is retracted while being raised is that the pusher 65 is moved backward by the spiral blade 12A,
This is to prevent interference with the subsequent work W stacked on the top of 12B.

After receiving the work W, the holder 100 is turned over as shown by the arrow in FIG. 4 and supplies the work W to a packing machine (not shown).

[0045]

As described above, according to the present invention,
It is possible to obtain a transport device having an unconventional structure suitable for vertical transport.

According to the transfer device of the present invention, the object to be conveyed can be conveyed quietly and smoothly, so that the delicate object to be conveyed that is easily damaged can be conveyed without being damaged.

According to the transfer device of the present invention, the transfer object can be moved extremely quietly and smoothly even when the transfer object is transferred to the spiral blade of the rotating body or when the transfer object is carried out from the spiral blade. I can do it.

According to the transporting device of the present invention, the objects to be transported can be successively stacked without using another independent stacking device.

[Brief description of the drawings]

FIG. 1 is an overall front view of a transfer device according to an embodiment of the present invention.

FIG. 2 is an overall side view of the transfer device.

FIG. 3 is a schematic plan view at a starting end of a rotating body of the transfer device.

FIG. 4 is a schematic side view of an accumulation device in the transfer device.

FIG. 5 is a schematic plan view of an accumulation device in the transfer device.

[Explanation of symbols]

 Reference Signs List 10A, 10B Rotating body 12A, 12B Spiral blade 14A, 14B Gear device 20 Belt conveyor 22 Lower guide plate (fixed guide member) 30 Leveling device 31 Leveling member 40 Air injector 50 Stopper plate (Stopper member) 60 Stacking device 62 Door plate (stopper member) 65 Pusher (pressing body) 70 Actuator (first actuator) 71 Actuator (second actuator)

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-23116 (JP, A) JP-A-55-2503 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65G 57/00-57/32

Claims (4)

(57) [Claims] 1. A pair of rotating bodies having spiral blades are arranged in parallel, and the winding directions of the spiral blades of each rotating body are opposite to each other. A stopper member is provided between the two rotating bodies and on the back side thereof along the axial direction of the rotating body, and the spiral blade of the one rotating body has an object to be conveyed. One side portion, the other side portion of the object to be conveyed to the spiral blade of the other rotating body, the front portion of the object to be conveyed to the stopper member, the two rotating body In a transport device configured to transport the transported object in the axial direction of the rotating body by rotation, the two rotating bodies are connected by a gear device, and the
The rotation axes of both rotating bodies are arranged substantially vertically, and the starting
The spiral blades at the end taper toward the start
In addition, an object to be conveyed is provided at the starting end sides of the two rotating bodies.
The end of the belt conveyor that conveys in a substantially horizontal direction is located.
And the spiral blade at the start end of the two rotating bodies and the belt con
A fixed guide member is installed between the end of the conveyor and the end of the belt conveyor.
The member is rotatable up and down with the member urged downward.
Conveying apparatus characterized by being kicked. 2. The end of the belt conveyor is provided with
Conveying from the belt conveyor to the fixed guide member
An air injector that blows air downward toward the object
2. The transport according to claim 1, wherein the transport is provided.
apparatus. 3. An accumulator is provided above the two rotating bodies,
This stacking device can be retracted to prevent the transport object from moving forward
Stopper member and transfer object loaded on both rotating bodies
Pushing body for pushing an object in a direction approaching the stopper member
And a first actuator for moving the pushing body back and forth
And a second actuator for moving the pusher vertically.
The transport according to claim 1 or 2, characterized by comprising:
Feeder. 4. The pin of each spiral blade at the end portion of said two rotating bodies.
The pitch is larger than the pitch of the spiral blades in other parts
The transport device according to claim 3, wherein: