JPH10114409A - Conveyor for changing course - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drive rotary shafts from a motor by chain at the course changing part of a production line so as to simplify the construction, make easy the manufacturing and assembling so as to prolong the life of the motor, reduce abrasion or cut-off of the chain as a power transmitting part, surely transmit power with strong construction, and facilitate maintenance and control, in a conveyor for changing a course. SOLUTION: This conveyor for changing a course is constituted so that the driving force of the motor M of it arranged on the line corner angle part of straight conveyors A1 , A2 nearly squarely crossing with each other is transmitted to rotary shafts 1 provided at angle of about 45 deg. against the rotary shafts (e) of the straight conveyors through a chain 3, and hence the course of articles (f) on rollers 4 fitted to the rotary shafts 15 changed by 90 deg..

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveyor for changing a path, and is used, for example, to change the path of a product or the like when it is transported on a production line.

[0002]

2. Description of the Related Art Conventionally, a roller conveyor has been used to transport a large amount of articles and to surely control the moving speed of the articles. By the way, in a conventional roller conveyor, when a plurality of divided rollers are inserted into a rotating shaft, and the rotating shaft is rotated integrally with the rollers by driving of a motor, a plurality of articles placed on the rollers are Are transported at once at the same speed. When removing rejected products that are transported on rollers from the viewpoint of product management and product processing, or when performing necessary processing operations on products, the rollers that are to be targeted are transported by rollers. If the article is temporarily stopped, the preceding article is pressed by the following article and tilts, and the articles are confused on the rollers. In order to solve these inconveniences, there has conventionally been another roller conveyor of the type shown in FIG. This conveyor is
One common drive spindle b that rotates by passively driving the motor a, and the rotation of the drive spindle b is passively driven via a drive belt c, and a plurality of substantially cylindrical rollers d are formed therein. A rotating shaft e rotatably supported by the frame F at both ends is loosely inserted so as to contact at least a part of the peripheral surface. Then, when the motor a rotates, the linear conveyor having such a structure is driven by the chain h, the sprockets g and i.
And the like, the common drive spindle b rotates. Next, since the rotation of the drive main shaft b is passively transferred to the rotation shaft e via the drive belt c, the plurality of rollers d whose rotation shaft e is in contact with the inner peripheral surface are rotated by the frictional engagement force. Therefore, the article f placed on the roller d is conveyed. Further, from the viewpoint of product management or the like, when the conveyance of the articles f in the desired row is stopped by applying an external forcing force such as using a stopper member or the like, a large number of rollers d on which the articles f are placed are placed. , The rotating shaft e idles, so that the article f is stopped on the roller d. For this reason, the succeeding article f also sequentially collides with the preceding article f whose conveyance has been stopped and stops on the roller d, so that the articles f in the desired row for which the conveyance is forcibly stopped cause confusion. Keep still and do not lean.
In this way, defective products can be checked and products can be processed. Articles f in other rows to which no forcible external stopping force is applied can freely convey the same conveyor.

[0003] The object connected to the linear conveyor portion
A conveyor for changing the path for changing the path of the product f
For example, there are those shown in FIGS. 6 and 7. Ie
Linear conveyor A installed almost orthogonally₁, A_TwoCorner of
It is arranged in a place, for example, a linear conveyor A₁No
As a power transmission component that meshes the driving force of
One common shaft that is passively rotated via bevel gears j and k
Drive shaft b₁And the drive shaft b₁Driven between
Moving belt c₁Conveyor A as rotated by
₁, A_TwoArranged in the diagonal X direction of the mutual plane space S
A plurality (four in FIG. 6) of rotation axes e of the same length₁And this
Axis of rotation e₁Part of the inner circumference
Are at least in contact with each other and become rotatable by the frictional engagement force.
Roller d₁And a plurality of rows arranged in the diagonal X direction
The rotation axis e of₁And a linear conveyor A that is substantially orthogonal to each other
₁, A_TwoEnd Y of₁, Y_TwoAn approximately plane triangle surrounded by
Shape space S₁, S_TwoThe roller d for changing the path₁And a straight line
Conveyor A ₁, A_TwoSame length to make contact with
A plurality of rotating shafts e₁As you go away from
A plurality of rotating shafts e arranged so as to have a longer length
_Two, E_Three, E_Four… E₇E_Two, E_Three, E_Four… E₇And
Wire conveyor A₁, A_TwoAt least one of
Between the common drive spindle b and the extension shaft b '
Drive belt c_TwoAnd a straight conveyor A₁,
A_TwoEnd Y of₁, Y_TwoConnection for linear transfer
Conveyors B, B.

[0004]

However, FIG. 6 and FIG.
And the path changing conveyor shown in FIG.
Conveyor A₁From the other straight conveyor A_TwoConvey to
To change the path of the article f, a straight conveyor A₁, A_Two
The driving force of any of the motors a as the driving source for
Passive and shared through bevel gears j and k as force transmission parts
Drive shaft b₁And this drive shaft b₁Wound around
Drive belts c₁Through the diagonal X direction
A plurality of rotating shafts e of the same length attached₁Rotate this
Axis of rotation e ₁The inner peripheral surface comes in contact with
A plurality of rollers d rotated by frictional engagement force₁And from
This roller d₁The article f placed on the upper surface of
While transporting, one straight conveyor A₁From the other straight line
Conveyor A_TwoThe course is changed by 90 degrees. Obedience
Tte straight conveyor A₁, A_TwoFrom the common drive spindle b
Common drive shaft b for road change part₁To the drive force of motor a.
Bevel gears j and k as power transmission parts to reach
To transmit rotation or share path change parts
Drive shaft b₁And a plurality of rotating shafts e provided in the diagonal X direction₁When
The rotation axis e₁Power transmission components to transmit rotation to
Drive belts c₁The drive mechanism
The construction is complicated and the number of parts is large.
It is not easy to manufacture and assemble, and
If the load on the motor “a” is large and it fails,
Rotary shaft e₁E_Two, E_Three, E_FourCommunicate to ...
Drive belt c ₁C_TwoC… wears out,
It takes a lot of time when it needs to be replaced due to disconnection.
The maintenance and management took time. Also this conventional
Example is straight conveyor A₁, A_TwoCommon drive spindle b in
And shared drive shaft b₁From the rotation axis e, e ₁To motor a
Means for transmitting the rotational force from the drive belts c, c
₁, The driving belt c,
c₁Rotation axes e, e₁And drive shaft b and drive shaft b₁When
Causes slip and loss to transmit power.
To have a large output as a conveyor
Could not.

The present invention solves the above-mentioned drawbacks of the prior art, and provides a motor as a dedicated drive source at a path change portion, and adopts a chain drive system for driving the rotary shaft from the motor. Simplified and easy to manufacture and assemble.Also, the load on the motor is small so that the life of the motor can be extended. Another object of the present invention is to achieve high output as a conveyor by reliably transmitting motive power without trouble.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and a first aspect of the present invention is provided at a line corner between linear conveyors which are provided substantially orthogonal to each other so that the traveling direction of an article can be controlled. A path changing conveyor to be changed, and another motor as a drive source different from the motor that drives the rotation axis of the linear conveyor, and rotatable via a chain that rotates by passively driving the driving force of the motor. About 45 with respect to the rotation axis
°, a plurality of rotating shafts arranged in substantially the entire area of the end space between the linear conveyors so that the length gradually decreases when approaching the end of the linear conveyor,
A means comprising a plurality of rollers attached to the rotating shaft is employed.

According to a second aspect of the present invention, in the first aspect, the linear conveyor has a plurality of rotating shafts on which a plurality of rollers are loosely fitted, and is arranged in a direction perpendicular to the rotating shafts. And a drive belt wound around the drive main shaft and the rotary shaft.

According to a third aspect of the present invention, in the first aspect, the linear conveyor includes a plurality of rotating shafts fitted with a plurality of rollers, a sprocket mounted on one end of the rotating shaft, and a winding around the sprocket. And a rotation transmission component for transmitting the driving force of the motor to the rotation shaft.

According to a fourth aspect of the present invention, in the first aspect, the plurality of rollers attached to the rotating shaft of the path changing portion are configured such that the rotating shaft is loosely inserted and at least a part of the inner peripheral surface comes into contact with the roller, thereby causing friction. Means is adopted in which the roller is a combination of a roller that rotates by an engaging force and a roller into which a rotating shaft is inserted.

According to a fifth aspect of the present invention, in the first or the fourth aspect, the plurality of rollers attached to the rotary shaft of the path changing portion are provided with one of the inner circumferential surfaces with the rotary shaft loosely inserted. Means is adopted in which at least the portions are in contact with each other and the rollers whose rotating shafts are inserted into the rollers that rotate by the frictional engagement force are scattered in an appropriate arrangement.

According to a sixth aspect of the present invention, in the first or the fourth aspect, the plurality of rollers attached to the rotating shaft of the path changing portion are arranged such that the rotating shaft is located on the inner circumferential side of the plane of the path changing portion. At least a part of the inner peripheral surface of the roller is loosely inserted and the rollers that rotate by frictional engagement are arranged,
Means is adopted in which rollers on which a rotating shaft is inserted are arranged on the outer peripheral side of the plane.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 4 show one embodiment of the present invention. In this embodiment, the same parts as those shown in FIGS. 5 to 7 are denoted by the same reference numerals. A ₁ , A ₂
Is a linear conveyor provided substantially orthogonally, and the path changing conveyor of this embodiment is disposed at the corners of the linear conveyors A ₁ and A ₂ . The linear conveyors A ₁ and A ₂ are arranged in a direction perpendicular to the plurality of rotating shafts e on which a plurality of rollers d are loosely fitted, and are driven by a driving force of a motor a. It is similar to the conventional conveyor shown in FIGS. 5 to 7 in that it is formed by a main shaft b and a number of ring-shaped drive belts c wound around the drive main shaft b and the rotary shaft e.

Reference numeral 1 denotes a rotation axis e of the linear conveyors A ₁ and A ₂ over substantially the entire area of the plane space S between the ends Y ₁ and Y _{2 of the} linear conveyors A ₁ and A _{2 at} the corners of the conveyor line. And a plurality of rotating shafts arranged in a row so as to be rotatable in the direction of the diagonal X, that is, the rotating shaft 1 closest to the diagonal X is the longest, and the linear conveyor A ₁ , gradually its length as the near Nuisance the end Y _1, Y ₂ of a ₂ are sequentially arranged to be shorter.

M is a drive source different from the motor a for driving the rotary shafts e of the linear conveyors A ₁ and A _2.
The motor M is a sprocket s ₁ mounted on the motor shaft m and a sprocket s mounted on the rotary shaft 1 closest to the linear conveyor A _{1. 2} and a power transmission component such as a chain 2 wound around these sprockets s ₁ and s ₂ transmits the driving force of the motor M to the rotary shaft 1.

Reference numeral 3 denotes a chain as a power transmission component for rotating the rotary shaft 1 by passively receiving the driving force from the motor M. The chain 3 is a sprocket s ₃ attached to one end of each rotary shaft 1. And wound.

Reference numeral 4 denotes a plurality of substantially cylindrical rollers which are attached to the rotary shaft 1. The roller 4 has the article f mounted thereon by loosely inserting the rotary shaft 1 into a hole 4a provided substantially at the center. At least a part of the inner peripheral surface of the hole 4a is
And a roller 4B that rotates integrally with the rotary shaft 1 when the rotary shaft 1 is inserted into the hole 4a (FIGS. 3 and 4). 4 is attached to the rotating shaft 1. As for the combination of the arrangement of the rollers 4A and 4B, for example, the rollers 4B are provided in an appropriate arrangement with respect to the roller 4A. In the preferred embodiment, the rotating shaft 1 has a bore 4
a, a desired number of rollers 4A which are loosely inserted into the inner surface of the path changing portion and are rotated together with the rotary shaft 1 by the frictional engagement force are arranged in the inner side of the plane of the path changing portion in a desired number, and are rotated in the holes 4a on the outer side of the plane of the path changing portion. Rollers 4B (shaded in the figure for convenience of explanation) on which the shaft 1 is inserted are arranged in a desired number sequence (see FIGS. 3 and 4).

Reference numeral 5 denotes a frame having bearings (not shown) for rotatably holding both ends of the rotary shaft 1. The frame 5 is formed in a plane pentagon.

One embodiment of the present invention has the above configuration.
In order for the articles f to be conveyed on the linear conveyors A ₁ and A ₂ , first, the motor a rotates and the rotation is transmitted to the drive spindle b via the sprocket g, the chain h, and the sprocket i. The respective rotation shafts e provided on the frame F are rotated via a plurality of drive belts c wound around b. Therefore, the cylindrical roller d loosely inserted so that a part of the inner circumference thereof comes into contact with the rotation shaft e rotates by the friction of the rotation shaft e. Article f resting on the order roller d is conveyed on the linear conveyor A _1.

In order to change the path of the article f conveyed with respect to the linear conveyor A _{1 by,} for example, 90 °, first, the drive main shaft b of the linear conveyor A ₁ is driven, and a dedicated drive different from the rotation is performed. When the motor M as a source is driven, this driving force is applied to _one rotating shaft via a chain 2 wound around a sprocket s ₁ mounted on the motor shaft m and a sprocket s ₃ mounted on the rotating shaft 1. 1 is rotated. Then, at the abutment point of the linear conveyors A ₁ and A ₂ via a chain 3 as a power transmission component wound around a sprocket s ₃ mounted on one end of each rotary shaft 1 including the rotary shaft 1, In the plane space S between the parts Y ₁ and Y ₂ , the length thereof is gradually reduced in parallel with the diagonal X at an angle of about 45 ° with the rotation axis e and toward the ends of the linear conveyors Y ₁ and Y _2. The rotating shafts 1 arranged in a row are rotated.

As described above, the drive mechanism for passively driving the motor M provided in the path changing section to the rotary shaft 1 is mounted on the sprocket s ₁ mounted on the motor shaft m and the rotary shaft 1. a sprocket s _2, through a power transmission part of the chain 2 wound around them, yet the sprocket s ₃ attached to one end of each rotary shaft 1 is a structure of wound around the chain 3. Therefore bevel gear for coupling the drive spindle b, and the drive shaft b ₁ shared between the straight line conveyor A ₁ and path changing conveyor unit as path changing conveyor belt drive system as shown in FIGS. 6 and 7 j, k, the common drive main shaft b and the drive shaft b ₁ itself, and power transmission parts such as a plurality of drive belts c wound around the drive main shaft b and the drive shaft b ₁ are unnecessary. As a result, the number of parts is reduced and the structure becomes simple, so that the manufacture and the assembly become easy. Moreover to passively rotation from the motor M to the rotary shaft 1, since by chain drive system using a chain 3, 6 and 7 using a drive belt c ₁
The power transmission loss is smaller than that of the belt driving method shown in FIG. 1 and the driving of the motor M can be transmitted to the rotating shaft 1 to rotate the roller 4 reliably. Therefore, the load on the motor M is small and the life of the motor M is extended. Moreover the chain 3 as a power transmitting part is rugged construction, wear or cutting is small, replacement easy in a short time by turning up the chain 3 to a plurality of sprockets s ₃ mounted on one end of the rotary shafts 1 And maintenance and management can be performed easily. In addition, since the motor M in the path changing portion is provided separately from the motors a in the linear conveyors A ₁ and A ₂ , the control of the conveying speed of the articles f by the motor M in the path changing portion can be performed easily and reliably. You.

The trains are arranged in a line changing conveyor.
Rotary axis 1 is linear conveyor A₁, A _TwoAt the abutment point
The rotation axis 1 near the diagonal line X is the longest,
Nvea A₁, A_TwoEnd Y of₁, Y_TwoGradually approaching
About 45 ° with respect to the rotation axis e so that the length of
Straight conveyor A at an angle₁, A_TwoEnd Y of₁, Y_TwoAmong
A roller is arranged on substantially the entire surface of the plane space S,
4 is mounted on the roller 4
Product f is a straight conveyor A₁90 ° course changed
Transported.

At this time, the roller 4 attached to the rotating shaft 1
The roller 4A, which is rotated by a frictional engagement force when the rotating shaft 1 is loosely inserted into a hole 4a provided substantially at the center of the roller 4 and at least the rotating shaft 1 comes into contact with a part of the inner peripheral surface of the hole 4a. On the other hand, the rollers 4B that rotate integrally with the rotating shaft 1 when the rotating shaft 1 is inserted into a hole 4a provided substantially at the center are combined and scattered in an appropriate arrangement. That is, in the preferred embodiment shown in FIG. 3, the roller 4A, in which the rotating shaft 1 is loosely inserted into the hole 4a and at least contacts a part of the inner peripheral surface of the roller 4A and is rotated by the frictional engagement force, The desired number of rows are arranged on the inner peripheral side of the plane of the portion, and furthermore, the rotating shaft 1 is inserted into the outer peripheral side of the plane to be rotated integrally with the rotating shaft 1. Specifically, they are arranged in two rows in FIG. 3, and are arranged such that the number of the rotating shafts 1 increases as the length of the rotating shaft 1 increases in FIG. Since the rotating shaft 1 is loosely inserted into the holes 4a of the rollers 4A provided in a desired number of rows on the inner peripheral side of the plane, the roller 4A has a slip with respect to the rotating shaft 1 to transmit power. Therefore, the article f conveyed on the inner side of the plane of the path changing section is conveyed with a small curvature, and the conveyance speed is small but lossy. On the other hand, the article f, which is originally located on the outer peripheral side of the plane and conveyed with a larger curvature than the inner peripheral side, has the rotary shaft 1 inserted into the hole 4a of the roller 4B, so that the roller 4B The roller 4 is rotated integrally with the roller 1.
By B, the course is surely changed by 90 ° while being transported without loss of power transmission.

In the above description, the linear conveyors A ₁ and A ₂ are:
A common drive main shaft b, which is arranged in a direction perpendicular to the rotation shaft e on which the plurality of rollers d are loosely fitted and is rotated by the driving force of the motor a, and a drive belt c wound around the rotation shaft e To transmit the driving force of the motor a to the rotating shaft e,
Although so as to rotate the loosely fitted to the roller d in a straight line conveyor A ₁ without being limited to this, when the roller d of A ₂ is fitted to the rotary shaft e, the shared main drive shaft b
Without using a drive belt c, a sprocket is attached to one end of a rotating shaft e, a chain is wound around the sprocket, the driving force of a motor a is transmitted to the rotating shaft e, and a roller d is rotated. It is also within the scope of the present invention to make the roller d rotate by a driving method.

[0024]

As described above, according to the present invention, a motor as a dedicated drive source is provided in a path changing portion, and a chain drive system is used to drive the rotary shaft from the motor. Since it is simpler, the manufacture and assembly can be easily performed. In addition, the adoption of the chain drive system reduces the load on the motor and extends the life of the motor. Also, as a power transmission component for the rotating shaft, the chain has less wear and cut compared to the drive belt, has a robust structure, and can be easily performed without the need for maintenance and management such as replacement of parts. Is transmitted to the rollers reliably, and a large output is exhibited as a conveyor, so that the article is efficiently transported.

[Brief description of the drawings]

FIG. 1 is a plan view showing one embodiment of a path changing conveyor of the present invention.

FIG. 2 is a sectional view of the embodiment.

FIG. 3 is an enlarged cross-sectional view of the present embodiment for convenience of explanation.

FIG. 4 is a plan view showing another example of the combination of the rollers used in the embodiment.

FIG. 5 is a sectional view showing an example of a conventional linear conveyor.

FIG. 6 is a plan view showing an example of a conventional route change conveyor.

FIG. 7 is a longitudinal sectional view of the same.

[Explanation of symbols]

1 rotating shaft 2 chains 3 chains 4 rollers 4A rollers 4B roller s ₁ sprocket s ₂ sprockets s ₃ sprockets

Claims (6)

[Claims] 1. A motor for driving a rotary shaft of a linear conveyor, which is disposed at a line corner of each of linear conveyors provided substantially orthogonal to each other and is a path changing conveyor for changing a traveling direction of an article. With another motor as a different drive source,
The driving force of the motor is rotatably provided through a chain that rotates passively at an angle of approximately 45 ° with respect to the rotation axis, and the length gradually decreases when approaching the end of the linear conveyor. As described above, comprising a plurality of rotating shafts arranged in substantially the entire area of the end space between the linear conveyors and a plurality of rollers attached to the rotating shafts. 2. The linear conveyor has a number of rotating shafts on which a plurality of rollers are loosely fitted, a common driving main shaft arranged at right angles to the rotating shafts, and rotated by a driving force of a motor. The path changing conveyor according to claim 1, wherein the conveyor is formed from a driving main shaft and a driving belt wound around the rotating shaft. 3. The linear conveyor has a number of rotating shafts fitted with a plurality of rollers, a sprocket mounted on one end of the rotating shaft, a chain wound around the sprocket,
The path changing conveyor according to claim 1, wherein the path changing conveyor is formed from a rotation transmission component that transmits a driving force of a motor to the rotation shaft. 4. A plurality of rollers attached to the rotation shaft of the path changing portion, wherein the rotation shaft is loosely inserted, and at least a portion of the inner peripheral surface comes into contact with the roller, and the roller rotates by frictional engagement.
The path changing conveyor according to claim 1, wherein the conveyor is a combination with a roller into which a rotating shaft is inserted. 5. A plurality of rollers attached to a rotation shaft of a path changing portion, wherein the rotation shaft is loosely inserted, at least a part of an inner peripheral surface thereof comes into contact, and the rotation shaft is rotated by a frictional engagement force. The path changing conveyor according to any one of claims 1 to 4, wherein rollers in which are inserted are scattered as appropriate. 6. A plurality of rollers attached to the rotation axis of the path changing portion, wherein the rotation axis is loosely inserted on the inner peripheral side of the plane of the path changing section, at least a part of the inner peripheral surface of the roller comes into contact, and friction is generated. The path changing conveyor according to claim 1 or 4, wherein rollers that rotate by an engagement force are arranged, and rollers on which a rotating shaft is inserted are arranged on the outer peripheral side of the plane.