JPH11227936A - Rejection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rejection device in which it is not necessary to stop a conveyer line, or to stop the feeding of an article to be carried to the convey er line, when a desired carried article is removed from the conveyer line, or it is distributed in branch lines, and furthermore, there is no risk of pushing down the carried article. SOLUTION: A chain C circularly running at the same speed as conveyor belt in the side position of the conveyer belt V, plural rejection arms 1 installed to the chain C at the same intervals, a push bar 4 provided on the way of the circulation running passage of the chain C and rotated by a servomotor M, and a guide rail 2 are provided. After the push bar 4 is rotated by the servomotor M, and the arm of the rejection arm 1 is tilted, a pressing-out plate 1E at the tip of the arm is projected to the conveyer belt V following the running of the chain C, so as to press out a carried bottled product B to the side direction on the opposite side of the conveyer belt V, and then, the arm is restored to the upright condition by sliding on the inclined part 2A of the guide rail 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reject device for extruding a conveyed object conveyed by a conveyor from the conveyor.

[0002]

Generally, a conveyor line is provided with a branch line that branches off from the main line of the conveyor, and there is a conveyor line that rejects an arbitrary one of the conveyed products to this branch line.

For example, in a bottling plant for beverages and the like,
A reject line is attached to the conveyor line that conveys the bottle containers filled with the contents, and bottle containers with insufficient filling amount or defects due to poor tapping etc. are rejected from the conveyor line to the reject line. To prevent defective products from being shipped.

Conventionally, as a method of rejecting a conveyed object from the conveyor line to a reject line, after stopping the conveyance of the conveyed object to the conveyer line, a cylinder disposed on a side portion of the conveyer line is operated. In this case, a method of ejecting a conveyed object in the direction of a reject line is employed.

[0005] However, in such a conventional method, it is necessary to stop the conveyor line every time a conveyed object is rejected. Therefore, there is a problem that the operation rate of the production line is reduced. For example, a beer bottle or the like whose height ratio is large relative to the area of the bottom surface has a problem that the cylinder may fall down when rejected due to an impact when the cylinder is flipped out of the conveyor line. doing. When such a conveyed object is overturned, the conveyor line must be stopped for a longer time in order to remove the overturned conveyed object from the conveyor line, causing a problem that the operation rate is further reduced.

The present invention has been made to solve the problem of rejecting an arbitrary conveyed product from a conventional conveyor line to a branch line as described above.

That is, the present invention eliminates the need to stop the conveyor line or stop the supply of the conveyed goods to the conveyor line when removing any conveyed goods from the conveyor line or sorting the goods to the branch line. It is another object of the present invention to provide a reject device that does not have a risk of overturning a transported object.

[0008]

In order to achieve the above object, a reject device according to a first aspect of the present invention is a reject device for removing an arbitrary conveyed product among conveyed products conveyed by a conveyor member from the conveyor member. Is disposed at a side position of the conveyor member and moves from a position away from the upstream conveyor member along the transport direction of the conveyor member to a position approaching the downstream conveyor member and then separated from the conveyor member And a circulating traveling member that circulates and travels at substantially the same speed as the conveyor member toward the original position on the upstream side, and an extruding member is provided at the tip end, the lower end is rotatably supported, and the upright state and the inclined state An arm member rotatable between the arm member, a stopper member for detachably holding the arm member in an upright state, and a support member for supporting the arm member in a tilted state. A reject member having a reciprocating member that is circulated by the circulating traveling member by the circulating traveling member and is attached so that an arm member is inclined toward the outside of the circulating traveling path of the circulating traveling member; An arm biasing member that is disposed in the middle of the traveling path and is arbitrarily operated to incline an upright arm member of the reject member that circulates and travels by the circulation traveling member; An arm return member that is arranged on the downstream side from the set position and urges the arm member in the inclined state upward to return the arm member to the upright state, wherein the length of the arm member of the reject member is reduced. From a position where the member is separated from the upstream conveyor member along the conveying direction of the conveyor member by the circulation traveling member. When traveling toward a position approaching the upstream conveyor member, the pushing member at the tip of the arm member in the inclined state is moved outwardly along the traveling side on the installation side of the circulation traveling member of the conveyor member. From the conveyor member, the circulation path of the circulation member is set to a length that reaches the side of the conveyor member opposite to the installation side of the circulation member at the position closest to the conveyor member. It is characterized by having.

[0009] The reject device according to the first aspect of the present invention,
When a conveyed object is conveyed by the conveyor member, the reject member attached to the circulation traveling member is moved downstream by the circulation traveling member from a position away from the upstream conveyor member along the conveying direction of the conveyor member. And then circulates along a circulating travel path away from the conveyor member to the original position on the upstream side. At this time, the arm member of the reject member is held upright by the stopper member.

When a conveyed object to be removed from the conveyor member is conveyed by the conveyor member, the arm urging member is operated, and the arm member is held by the arm urging member in the upright state of the reject member. Is biased toward the outside of the circulating travel path, is tilted by releasing the holding state by the stopper member, and is held in the tilted state by the support member.

The arm member of the reject member, while maintaining its tilted state, approaches the downstream conveyor member from a position away from the upstream conveyor member in the conveying direction of the conveyor member by the circulation traveling member. And travels in a direction oblique to the conveying direction of the conveyor member. As a result, the extruding member at the tip of the arm member advances on the conveyor member from the outside of the side of the conveyor member on the installation side of the circulation member as the vehicle travels.

At this time, the pushing member of the arm member comes into contact with the conveyed object conveyed by the conveyor member.
Then, when the reject member further travels, the pushing member of the arm member advances on the conveyor member, and presses the conveyed material conveyed at the same speed as the arm member in a direction perpendicular to the conveying direction of the conveyor member. go.

In this way, when the arm member travels to the position where the circulation traveling path of the circulation traveling member is closest to the conveyor member while pressing the transported object in the direction perpendicular to the conveying direction of the conveyor member, The extruding member reaches the side of the conveyor member opposite to the side where the circulation traveling member is installed, and completely pushes the conveyed product from above the conveyor member.

[0014] Thereafter, the reject member that has pushed the conveyed material from above the conveyor member is further moved, and the arm return member disposed downstream from the position where the conveyed material has been extruded raises the tilted arm member upward. It is urged in the direction to return to the upright state, and is circulated upstream of the conveyor member while being held by the stopper member.

As described above, according to the first aspect,
Conveyances conveyed on the conveyor line can be automatically pushed out of the conveyor line without stopping the conveyor line or stopping supply of the conveyed goods to the conveyor line, and the conveyor line is conveyed. The member that pushes the incoming conveyed product from the conveyor line comes into contact with the conveyed product conveyed on the conveyor line from a direction oblique to the conveying direction of the conveyor line. The applied impact is small, and there is no possibility that the conveyed object may fall.

To achieve the above object, a reject device according to a second aspect of the present invention, in addition to the configuration of the first aspect, wherein the reject member is attached to the circulation traveling member along a traveling direction of the circulation traveling member. It is characterized in that a plurality of them are attached at equal intervals at arbitrary intervals.

The reject device according to the second invention is
When the conveyed articles are continuously conveyed by the conveyor member, a plurality of reject members are attached to the circulation traveling member at regular intervals so as to correspond to the conveying intervals of the conveyed articles continuously conveyed. The plurality of reject members are circulated by the circulating member along the circulating path.

According to the second aspect, when a conveyed object is continuously conveyed by the conveyor member, it corresponds to an arbitrary conveyed material pushed out from above the conveyor member among a plurality of reject members circulating. By inclining the arm member of the rejecting member, any conveyed object can be continuously pushed out from the conveyer line from among the conveyed conveyed objects.

In order to achieve the above object, a reject device according to a third aspect of the present invention, in addition to the configuration of the first aspect, further comprises an arm biasing member in the circulation traveling path of the circulation traveling member. The pushing member of the reject member advances from the position where the member is tilted to the conveyor member, and the pushing member contacts the object by a distance substantially equal to the distance from the position where the member contacts the object conveyed by the conveyor member. A detection member for detecting a conveyed material pushed out from above the conveyor member is provided at a position on the upstream side along the conveyor member from a position where the conveyance member is to be moved.

The reject device according to the third aspect of the present invention
A detecting member for detecting whether or not the conveyed material conveyed by the conveyor member is a conveyed material pushed out from the conveyor member is provided upstream of the circulation traveling member, and detects the conveyed material. Do. Then, when the conveyed material pushed out from the conveyor member is detected by the detecting member, the arm urging member is operated, and the arm member held in the upright state of the reject member is tilted. Then, the conveyed object that has passed the detection position of the detection member and the reject member whose arm member has been tilted by the arm urging member are moved at the same speed and the same distance, so that they are reliably moved on the conveyor member on the downstream side. Will come into contact with

As described above, according to the third aspect of the present invention, it is possible to arbitrarily push out the conveyed articles conveyed on the conveyor line without any risk of falling over.

To achieve the above object, a reject device according to a fourth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, further comprises a conveyer member at a position opposite to a side on which the circulation traveling member is installed. A reject conveyor member is provided, which is disposed parallel to the conveyor member and has a transfer surface at the same height as the transfer surface of the conveyor member, and is configured to transfer and move in the same direction as the conveyor member.

The reject device according to the fourth aspect of the present invention
In the first aspect, the conveyed material extruded from the conveyor member by the reject member in a direction opposite to the side where the circulation traveling member is installed is moved onto a reject conveyor member attached to the conveyor member, By this reject conveyor member, it is conveyed in a different direction from the conveyor member.

As described above, according to the fourth aspect,
It is possible to automatically sort any conveyed goods from the conveyor line to the branch line without falling over.

To achieve the above object, a reject device according to a fifth aspect of the present invention, in addition to the configuration of the first aspect, wherein the circulating traveling member is arranged along a conveying direction of the conveyor member beside the conveyor member. And a chain member wound between a pair of wheels arranged at an upstream side and a downstream side and circulating between the pair of wheels.

The reject device according to the fifth aspect of the present invention
The chain member wound between the pair of wheels is circulated between the pair of wheels by rotation of the wheels, so that the reject member circulates and runs. With this chain member, the circulation traveling along the circulation traveling path approaching and leaving the conveyor member of the reject member from the oblique direction is performed smoothly, and the extruding of any conveyed material from the conveyor member is performed smoothly. Can be.

To achieve the above object, a reject device according to a sixth aspect of the present invention, in addition to the configuration of the first aspect, further comprises an arm wherein the stopper member of the reject member is in an upright state of the machine frame of the reject member. A pair of squeezing members attached to a portion facing the member and urged in a direction to approach each other; and a pair of squeezing members that are provided on the arm member and are detachably engageable between the pair of squeezing members when the arm member is in an upright state. And a projection member to be sandwiched.

The reject device according to the sixth aspect of the present invention
When the arm member of the reject member is in the upright state, the projecting member provided on the arm member of the stopper member moves the pair of pressing members between the pair of pressing members attached to the machine frame in a direction approaching each other. The arm members are fitted in a state of being separated from each other against the urging force, and are nipped by the pair of nipping members, whereby the arm member is held upright. When the arm member of the reject member in the upright state is urged and tilted by the arm urging member, the projecting member of the arm member responds to the urging force of the pair of squeezing members that squeeze the projecting member. When the arm member is pulled out of the space between the pair of pressure members, the arm member is released from the upright state. As a result, the holding of the reject member in the upright state and the release of the holding state of the arm member are smoothly performed, and the removal or sorting of any conveyed material from the conveyor line is smoothly performed.

According to a seventh aspect of the present invention, there is provided a reject device according to the seventh aspect, wherein the arm urging member comprises a rotary drive member and a rotary shaft of the rotary drive member. A rotating lever member that is mounted on the rotating shaft and that is rotated about the rotation axis and whose rotation trajectory at the tip overlaps the running trajectory of the reject member by the circulation running member. An urging portion is provided at a portion where the trajectory overlaps the traveling trajectory of the reject member, the urging portion being urged in a direction to tilt the arm member by engaging the arm member of the reject member with the rotation of the rotary lever member. It is characterized by.

The reject device according to the seventh aspect of the present invention
By driving the rotary drive member in synchronization with the travel of the reject member traveled by the circulation travel member when pushing out the transported material transported from the conveyor member,
The rotating lever member attached to the rotating shaft is rotated, and the urging portion provided on the rotating lever member travels at a portion where the traveling locus of the arm member of the reject member and the rotating locus of the rotating lever member overlap. The upright arm member is tilted by engaging with the arm member that has been moved. As described above, according to the seventh aspect, the arm member of the reject member is arbitrarily tilted by the drive control of the rotary drive member, thereby smoothly removing or sorting any conveyed material from the conveyor line. be able to.

In order to achieve the above object, according to an eighth aspect of the present invention, in addition to the configuration of the first aspect, the arm urging member detects that the rotation lever member has made one rotation. It has a rotation lever detecting member.

The reject device according to the eighth aspect of the present invention
In the seventh aspect, the rotation of the arm biasing member is driven by setting the rotation position of the rotation lever member at a position where the rotation lever member of the arm biasing member deviates from the traveling locus of the reject member. When the member is driven to arbitrarily remove or sort the conveyed material from the conveyor member, after the rotation lever member makes one rotation and inclines the arm member of the reject member, this rotation lever member is rotated by the rotation lever detection member. One rotation is detected. Then, the drive of the rotation drive member is stopped by the detection signal from the rotation lever detection member, and the urging member of the rotation lever member can be made to stand by at a position deviating from the traveling locus of the reject member.

Thus, the arm member of the reject member can be arbitrarily tilted, and thereby, any conveyed material can be smoothly removed or sorted from the conveyor line.

To achieve the above object, a ninth aspect of the present invention provides a rejection device according to the first aspect, wherein the arm return member is disposed between the conveyor member and the circulation traveling member. And a guide rail member having an inclined guide portion which is inclined so as to rise from the upstream side to the downstream side along the conveying direction of the conveyor member.

The reject device according to the ninth aspect is
After the reject member presses the conveyed object in a direction perpendicular to the conveying direction of the conveyor member and travels to a position where the circulation traveling path of the circulation traveling member is closest to the conveyor member, and completely extrudes the conveyed object from above the conveyor member. As the reject member further travels downstream from this position, the arm member in the inclined state rides on the inclined guide portion of the guide rail member serving as the arm return member.
As the reject member travels, the inclined arm member rises along the traveling direction of the inclined guide portion, whereby the inclined arm member is urged upward and lifted up, and the end portion of the inclined guide portion is lifted. Is reached, the arm member returns to the upright state, and is held in this upright state by the stopper member.

According to the ninth aspect of the present invention, it is possible to automatically return the tilted arm member to the upright state with the travel of the reject member without stopping the travel of the reject member. The device can operate smoothly.

In order to achieve the above object, a reject device according to a tenth aspect of the present invention, in addition to the configuration of the first aspect, further comprises a circulating travel path of the circulating travel member located downstream after approaching a conveyor member. The arm return member is disposed parallel to the conveyor member for a required distance, and the circulation return path is disposed between the conveyor member and the circulation travel member in a portion parallel to the conveyor member.

In the reject device according to the tenth aspect, the reject member travels to a position where the circulation path of the circulation traveling member is closest to the conveyor member while pressing the conveyed object in a direction perpendicular to the conveying direction of the conveyor member. After the conveyed material is completely extruded from the conveyor member, the reject member travels in a required distance downstream from this position in parallel with the conveyor member. Then, in a section where the reject member travels in parallel with the conveyor member, the inclined arm member is lifted by the arm return member and returned to the upright state.

According to the tenth aspect, the arm member, which has been tilted while the reject member is traveling in parallel with the conveyor member, is lifted and returned to the upright state, whereby the upright state is achieved. Since the rotation surface of the arm member when returning to the normal position is perpendicular to the conveying direction of the conveyor member, even if the conveyed object is continuously conveyed at a narrow interval by the conveyor member, it is upright. The arm member that rotates to return to the state is engaged with the conveyed material before and after the conveyed material pushed out from the conveyor member, and the conveyed material before and after this is turned over, or the arm member is brought upright. There is no danger that the return of the device will be hindered, and smooth operation of the reject device is guaranteed.

[0040]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view showing an example of an embodiment of a reject device according to the present invention. In the reject device in this example, a bottle container is filled with a liquid such as a beverage as a content, and the crown is stoppered. It is installed on a conveyor belt that conveys bottled products, and rejects bottled products that are not properly plugged or have an insufficient amount of content from the conveyor belt.

In FIG. 1, a reject device R comprises:
The bottled product B, which is disposed on the side of the conveyor belt V and is conveyed by the conveyor belt V from the right side to the left side in FIG. 1 (hereinafter, this direction is referred to as a conveyance direction X), is rejected.

The reject device R has a chain C wound between a pair of wheels W1 and W2 rotated about a vertical axis, and the chain C is rejected as shown in FIGS. A plurality of arms 1 are attached at predetermined intervals. The interval at which the reject arm 1 is attached is determined by the conveyor belt V as described later.
Is set so as to correspond to the transport interval of the bottled product B continuously transported.

The wheels W1 and W2 are mounted on the conveyor belt V
In the transport direction X, the wheel W1 is disposed at a position away from the upstream conveyor belt V, and the wheel W2 is disposed at a position close to the downstream conveyor belt V. The center of the wheels W1 and W2 is The connecting line is inclined at a required angle with respect to the transport direction X.

The wheel W2 is a driving wheel, and the chain C wound between the wheels W1 and W2 is circulated in the counterclockwise direction (the direction of arrow Y) in FIG. I have. The wheel W2
Instead, the wheel W1 may be a drive wheel.

The wheel W2 between the wheels W1 and W2
The wheel W is positioned closer to the conveyor belt V.
1 and W2, a wheel W3 having a smaller diameter and being rotatable about a vertical axis is arranged in a state meshed with the inside of the chain C.
Side so that the chain C is parallel to the conveyor belt V between the wheels W2 and W3.
I support.

As shown in FIGS. 2 and 3 in an enlarged manner, the reject arm 1 has a board 1A connected to the outer periphery of the chain C so as to run integrally therewith, and the board 1A.
And a pair of pillars 1B, the lower ends of which are fixed so as to extend vertically on the outer surface of the chain C, and a pair of pillars 1B projecting outward at right angles to the traveling direction of the chain C and facing each other at a predetermined interval from each other. A support base 1C having support plates 1Ca, 1Ca and fixed to the lower end of a column 1B, and a base end inserted between a pair of support plates 1Ca, 1Ca of the support base 1C to form a pair of base ends. An arm 1D rotatably supported by a shaft 1Da parallel to the traveling direction of the chain C between the support plates 1Ca, 1Ca, and a longitudinal direction at the tip of the arm 1D is parallel to the traveling direction of the conveyor belt V and Arm 1
Extruded plate 1 fixed to be perpendicular to the axial direction of D
E.

The support base 1C includes a pair of support plates 1Ca and 1C.
a bottom portion 1Cb is provided between the lower portion of the arm 1a and the upper surface of the bottom portion 1Cb engages with the arm 1D when the arm 1D is tilted, as described later, and holds the arm 1D in a horizontal state. It is supposed to.

As can be clearly understood from FIG. 3, a stopper 1 for holding the arm 1D vertically upright on the support 1B is provided on the side of the support 1B facing the arm 1D.
F is attached, and a projection 1G that engages with the stopper 1F is attached to a portion of the arm 1D facing the stopper 1F.

The stopper 1F is provided with a steel ball 1Fb in a pair of casings 1Fa fixed so as to face each other at a predetermined interval in the vertical direction on the side surface of the column 1B.
The steel ball 1Fb and the casing 1
A spring 1Fc is interposed between the inner wall of Fa and the inner wall of Fa, and urges the steel balls 1Fb in directions approaching each other.

The steel balls 1Fb are formed from holes having an inner diameter smaller than the outer diameter of the steel balls 1Fb formed on the opposing surfaces of the respective casings 1Fa.
Each of them is held in such a manner that a part thereof protrudes outside the casing 1Fa and is spaced apart from each other by a distance smaller than the width of the protrusion 1G, so that it cannot be dropped off.

The protrusion 1G is horizontally projected from the surface of the support 1B of the arm 1D facing the stopper 1F toward the support 1B, and a concave portion 1Ga is formed on the upper surface and the lower surface of the tip. When the arm 1D is in the upright state, the projection 1G is provided with a pair of steel balls 1 of the stopper 1F.
The arm 1D is inserted into the recess 1Ga, and the arm 1D is inserted into the recess 1Ga.
B is held upright.

As can be seen from FIG. 1, on the outer part of the chain C wound between the wheels W1, W2 and W3,
From the position facing the outer periphery of the wheel W3, the wheel W2
A guide rail 2 extending parallel to the chain C is disposed around the outer circumference of the wheel W1 to a position facing the outer circumference of the wheel W1.

FIG. 4 is a side view of the guide rail 2 as viewed from the Z direction in FIG. 1. The guide rail 2 has a section a facing a portion of the chain C from the wheel W3 to the wheel W2 in FIG. It is inclined so as to rise upward toward the downstream side (hereinafter, this section a portion is referred to as an inclined portion 2A), and opposes a portion of the chain C that goes around the outer peripheral portion of the wheel W2 and reaches the wheel W1. The section b is formed horizontally (hereinafter, the section b is referred to as a horizontal portion 2B).

The servo motor M is located at a position facing the circumferential portion on the upstream side in the transport direction X above the wheel W1.
Are attached to and supported by a machine frame (not shown) with the rotation axis M1 directed vertically downward.

A base end of a horizontally extending rotary lever 3 is fixed to a front end of a rotary shaft M1 of the servo motor M, and is rotated counterclockwise in FIG. It is supposed to.

A push bar 4 extending vertically downward is fixed to the tip of the rotary lever 3.
Is rotated around the rotation axis M1 of the servo motor M while drawing a cylindrical surface. And
The rotation trajectory of the push bar 4 is set so as to overlap the travel trajectory of the arm 1D of the reject arm 1 in the upright state traveling along the circulation traveling of the chain C, and the push bar 4 rotates as described later. The extruded plate 1 of the reject arm 1 that has been traveling with the rotation of the lever 3
The arm 1D is urged outward from the chain C by engaging with a rear portion of the arm E.

A proximity sensor S1 for detecting the position of the rotary lever 3 when the rotary lever 3 comes to a predetermined position by its rotation is attached to a machine frame (not shown) above the rotation locus plane of the rotary lever 3. . This proximity sensor S1
Is to detect that the rotation lever 3 has made one rotation, and at which position on the rotation trajectory surface of the rotation lever 3 the rotation lever 3 is detected is arbitrary. In this example,
In the rotation direction of the rotary lever 3, the push bar 4 is disposed downstream of the engagement position α (see FIG. 1) between the push bar 4 and the push plate 1E at a position off the travel path of the reject arm 1.

At a position upstream of the portion where the reject device R of the conveyor belt V is opposed, a light detection sensor S2 for inspecting the amount of bottled product B conveyed by the conveyor belt V, and the bottled product B is plugged. A metal sensor S3 for detecting the presence or absence of a crown is provided.

The light detection sensor S2 has a light emitter S2a and a light receiver S2b arranged so as to sandwich the conveyor belt V. When the bottled product B passes between the light emitter S2a and the light receiver S2b. The light quantity of the inspection light from the light emitting device S2a to the light receiving device S2b is used to detect whether or not the bottled product B is filled with contents up to a prescribed taste line.

The metal sensor S3 is disposed so as to be located above the bottled product B conveyed by the conveyor belt V, and detects the presence or absence of metal in the bottled product B passing below, thereby detecting the presence or absence of metal. It is configured to detect whether or not a crown is plugged in the bottled product B.

The light detection sensor S2 and the metal sensor S
Numeral 3 is connected to a controller 10 such as a microcomputer, and further, a proximity sensor S1 is connected to the controller 10 so that detection signals are output to the controller 10, respectively. Then, the controller 10 controls the servo motor M
, And controls the driving of the servo motor M based on the detection signals from the respective sensors.

The traveling speed of the chain C of the reject device R is set to be equal to the transport speed of the conveyor belt V. Further, the travel speed of the metal sensor S3 located downstream in the transport direction of the conveyor belt V is detected. The distance L1 from the position to the contact position β between the extruded plate 1E and the bottled product B described later is equal to the distance L2 from the engagement position α between the push bar 4 and the extruded plate 1E to the contact position β. It is set (see FIG. 1).

Further, a reject conveyor RV is installed at a position on the opposite side of the conveyor belt V from the side where the reject device R is installed, and is provided alongside the conveyor belt V and branches off from the conveyor belt V on the downstream side.

Hereinafter, the operation of the reject device R will be described.

In FIG. 1, the reject device R
In order to explain the movement of the reject arm 1 and the bottled product B, the movement state of one reject arm 1 and the bottled product B is continuously described.

Further, in the standby state of the reject device R, each of the plurality of reject arms 1 attached to the chain C has the pair of steel balls 1Fb of the stopper 1F fitted into the concave portions 1Ga of the protrusions 1G, respectively.
The arm 1D is held upright by the pressing force of the projection 1G by the urging force of the spring 1Fc.

In this state, in FIG. 1, when the bottled product B is conveyed by the conveyor belt V, when the bottled product B sequentially passes through the detection position of the light detection sensor S2 and the detection position of the metal sensor S3. , Light detection sensor S2
If the bottled product B is detected not to be filled with a prescribed amount of contents such as a beverage or the metal sensor S3 detects that the bottled product B is not capped with a crown. The controller 10 outputs a drive signal to the servo motor M when the bottled product B passes the detection position of the metal sensor S3 based on the detection signals input from the light detection sensor S2 and the metal sensor S3. I do.

The servo motor M, to which the drive signal from the controller 10 has been input, rotates the rotary lever 3 one turn in the counterclockwise direction in FIG. At this time, since the rotation trajectory of the push bar 4 attached to the tip of the rotary lever 3 overlaps with the traveling path of the reject arm 1 traveling at the same speed as the transport speed of the conveyor belt V, the push bar 4 is pushed. The bar 4 engages with the rear surface of the push plate 1E of the reject arm 1 that has traveled to the intersection with the rotation locus of the push bar 4 by driving the chain C among the plurality of reject arms 1 connected to the chain C.

The reject arm 1 engaged with the rotating push bar 4 is urged in a direction in which the arm 1D rotates radially outward of the wheel W1 about its axis 1Da, and a pair of steel The projection 1G sandwiched between the balls 1Fb pushes apart the pair of steel balls 1Fb against the biasing force of the respective springs 1Fc, thereby separating from the stopper 1F.

The arm 1D from which the projection 1G has come off the stopper 1F falls down in the radial direction of the wheel W1 due to its own weight, as shown by a two-dot chain line in FIG. 5, and the bottom 1Cb of the support base 1C. And is supported in a horizontal state.

The servo motor M detects the rotation lever 3 by the proximity sensor S1 at a position where the rotation of the rotation lever 3 makes one rotation and the push bar 4 deviates from the travel path of the reject arm 1, and the detection signal is sent to the controller 10. The rotation of the push bar 4 is stopped by the control of the controller 10 and the push bar 4 is made to stand by at a position off the traveling path of the reject arm 1.

As described above, the arm 1D that is tilted from the upright state and held in the horizontal state approaches the conveyor belt V with the driving of the chain C, and the extruded plate 1E at the tip of the arm 1D is moved. It enters on the conveyance path of the conveyor belt V. Then, it comes into contact with the side of the bottled product B conveyed by the conveyor belt V.

At this time, the extruded plate 1E is
The distance L1 from the contact position β between the container and the bottled product B to the detection position of the metal sensor S3 is the distance between the contact position β and the push bar 4
Is set so as to be equal to the distance L2 to the engagement position α between the metal belt and the push plate 1E, and the transport speed of the conveyor belt V is equal to the traveling speed of the chain C. The bottled product B in which the insufficient filling amount or the improper tapping is detected comes into contact.

The contact between the extruded plate 1E and the bottled product B is performed at an acute angle because the running direction of the extruded plate 1E is inclined with respect to the conveying direction X of the conveyor belt V. The impact on the bottled product B upon contact is very small.

The bottled product B in contact with the extruded plate 1E travels at the same speed as the bottled product B while the chain C is inclined with respect to the conveyor belt V, and protrudes onto the conveying path of the conveyor belt V by the extruded plate 1E. Is urged in a direction perpendicular to the conveying direction X of the conveyor belt V, and is moved from the conveyor belt V onto the reject conveyor RV.

When the reject arm 1 reaches the position of the wheel W3, the extruded plate 1E reaches the side of the reject conveyor RV, and the bottled product B is completely transferred from the conveyor belt V onto the reject conveyor RV. Extrude.

Thereafter, the running direction of the chain C is parallel to the conveyor belt V between the wheels W3 and W2, so that the reject arm 1 runs parallel to the conveyor belt V and the arm 1D is guided. Ride on the inclined portion 2A of the rail 2. And
As the chain C travels, the arm 1D slides on the inclined portion 2A of the guide rail 2, and this arm 2D
Urged upward to cause an upright state from a horizontal state.

When the reject arm 1 reaches the position where the guide rail 2 is switched from the inclined portion 2A to the horizontal portion 2B, the arm 1D is completely caused to stand upright, and the projection 1G is brought into contact with the steel of the stopper 1F. Ball 1
Fb, the steel ball 1Fb urged by the spring 1Fc fits into the recess 1Ga, and the projection 1
G is held upright by being pinched by the steel ball 1Fb.

In this way, the reject arm 1 in which the arm 1D is returned to the upright state continues the circulating travel between the wheels W1 and W2 as the chain C travels. When the reject arm 1 in which the arm 1D is in the upright state travels along the conveyor belt V, the extruded plate 1E does not enter the conveyance path of the conveyor belt V, and therefore, is conveyed by the conveyor belt V. It does not engage with the incoming normal bottled product B.

The defective bottled product B extruded onto the reject conveyor RV is
By V, it is conveyed to a processing step different from the conveyor belt V.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an example of the best mode of the present invention.

FIG. 2 is a front view showing an attached state of a reject arm and a chain in the same example.

FIG. 3 is a side sectional view showing a configuration of a reject arm in the same example.

FIG. 4 is a front view showing a guide rail in the same example.

FIG. 5 is a side view showing the reject device in the same example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Reject arm (reject member) 1A ... Substrate 1B ... Prop (machine frame) 1C ... Support base 1Ca ... Support plate 1Cb ... Bottom (support member) 1D ... Arm (arm member) 1E ... Extrusion plate (extrusion member) 1F ... Stopper (stopper member) 1Fa: Casing 1Fb: Steel ball (clamping member) 1Fc: Spring 1G: Projection (projection member) 1Ga: Concave part 2: Guide rail (arm return member, guide rail member) 2A: Inclined portion (inclined guide) Part) 2B ... horizontal part 3 ... rotating lever (rotating lever member) 4 ... push bar (biasing part) B ... bottled product (conveyed material) C ... chain (circulating traveling member) M ... servo motor (arm biasing member, Rotation drive member) M1 ... Rotating axis V ... Conveyer belt (conveyor member) RV ... Reject conveyor S2 ... Light detection sensor S3: Metal sensor W1, W2: Wheel W3: Wheel

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Fumio Iruka Kirin Brewery Co., Ltd. 2-1-1 Shinkawa, Chuo-ku, Tokyo

Claims (10)

[Claims] 1. A reject device for removing an arbitrary conveyed material from a conveyed member from a conveyed member, wherein the rejecting device is disposed at a side position of the conveyed member and extends along a conveying direction of the conveyed member. After moving from a position away from the upstream conveyor member to a position approaching the downstream conveyor member, it is separated from the conveyor member and circulates at substantially the same speed as the conveyor member toward the original upstream position. A circulating traveling member, an extruding member provided at a distal end portion, and a lower end portion rotatably supported so that the arm member is rotatable between an upright state and a tilted state, and the arm member is detachably engaged with the upright state. The circulating member has a stopper member for holding and a supporting member for supporting the arm member in a tilted state. A reject member attached such that the arm member is inclined toward the outside of the circulating travel path of the traveling member; An arm urging member for inclining the arm member in the upright state of the reject member; and an arm member disposed in a downstream side from a position of the circulation traveling member close to the conveyor member in the circulation traveling path to upwardly attach the inclined arm member. An arm return member for returning the arm member to an upright state by urging the arm member of the reject member, wherein the length of the arm member of the reject member is such that the reject member is moved upstream by the circulation traveling member along the conveying direction of the conveyor member. When traveling from a position away from the member to a position approaching the downstream conveyor member, The extruding member at the tip of the arm member advances on the conveyor member from outside the side of the conveyor member on the side where the circulation traveling member is installed as the traveling member travels, and the circulation traveling path of the circulation traveling member is most conveyed to the conveyor member. A reject device characterized in that the length is set to reach a side of the conveyor member opposite to the side where the circulation traveling member is installed at the approach position. 2. The reject device according to claim 1, wherein a plurality of the reject members are attached to the circulation traveling member at equal intervals along the traveling direction of the circulation traveling member. 3. The reciprocating member is conveyed by a reciprocating member that is pushed out of the reciprocating member from a position where the resilient member causes the resilient member to be inclined in a recirculating path of the recirculating member. Detecting member for detecting a conveyed material to be extruded from the conveyor member to a position on the upstream side along the conveyor member from a position where the extruding member is in contact with the conveyed material by a distance substantially equal to a distance to a position where the conveyed material comes into contact with the conveyed material. The rejection device according to claim 1, wherein the device is installed. 4. The conveyor member is disposed at a position opposite to a side on which the circulation traveling member is installed, so as to be parallel to the conveyor member and to have a transfer surface at the same height as the transfer surface of the conveyor member. The reject device according to claim 1, further comprising a reject conveyor member that is transported and travels in the same direction as the conveyor member. 5. The circulation traveling member is wound between a pair of wheels arranged at an upstream side and a downstream side along a conveying direction of the conveyor member on a side of the conveyor member, and a gap between the pair of wheels is formed. The reject device according to claim 1, wherein the reject device is a chain member that runs in a circulating manner. 6. The stopper member of the reject member,
A pair of clamping members attached to a portion of the reject member opposed to the arm member in the upright state of the machine frame and urged in a direction approaching each other; and provided on the arm member, when the arm member is in the upright state. The reject device according to claim 1, further comprising a projection member that is detachably held between the pair of pressure members. 7. The arm urging member is attached to a rotation driving member and a rotation shaft of the rotation driving member, and is rotated about the rotation shaft. A rotating lever member that overlaps the traveling locus of the reject member; and a portion in which the rotating locus of the distal end of the rotating lever member overlaps the traveling locus of the reject member, the arm member of the reject member with the rotation of the rotating lever member. 2. An urging portion for urging the arm member in a direction of inclining when engaged.
4. The reject device according to claim 1. 8. The reject device according to claim 7, wherein the arm urging member has a rotation lever detection member that detects that the rotation lever member has made one rotation. 9. An inclined guide, wherein the arm return member is disposed between the conveyor member and the circulation traveling member, and is inclined so as to rise from upstream to downstream along a conveying direction of the conveyor member. The reject device according to claim 1, wherein the reject device is a guide rail member having a portion. 10. A circulation path of the circulation member is parallel to the conveyor member for a required distance toward the downstream side after approaching the conveyor member, and the circulation path is circulated in a portion parallel to the conveyor member. The reject device according to claim 1, wherein the arm return member is disposed between a traveling member and a conveyor member.