JP2000157938A - Defective product removing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make removable defective products at a high speed and to make problems such as breakage of bottles, waste of resources, and environmental pollution solvable by subjecting a removing plate to one way movement from one side part of a conveying path to the other side part. SOLUTION: Works in process of bottled products traveling on a conveying path 1 are monitored by a sensor 2 to detect defective products N. When the defective product N reaches a sorting area 1A, a piston member is made to perform one action in the projecting direction or in the suction direction, and a removing plate 17 is subjected to one way movement at a high speed in the direction crossing the conveying path 1 to discharge the defective product N to, for example, the side of a defective product conveying path 12A. The defective product N is softly received by a cushioning member 13A as it is in an erect state and is led in the advancing direction of the defective product conveying path 12A and is sent to a defective product treating process. When a defective product is detected among the following semi-processed goods on the conveying path 1, the removing plate 17 is subjected to one way movement at high speed from the side of the defective product conveying path 12A to the side of a defective product conveying path 12B to discharge the defective product N to the defective product conveying path 12B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rejection apparatus for rejecting defective products from a conveying path for a group of articles at a high speed.

[0002]

2. Description of the Related Art In a product manufacturing line, a defective product elimination device for detecting a defective product and excluding the detected defective product from the manufacturing line is provided on a conveying path of the product group. The mechanism of the conventional defective product elimination device is roughly classified into a rotating plate type or a dropped floor type. As described in Japanese Patent Application Laid-Open No. H8-2666, for example, a rotating plate type is provided with a rotatable exclusion plate in the middle of a transport path, and a detected defective product reaches an area of the exclusion plate. Then, by rotating the rejection plate, the defective product is removed from the non-defective conveying path and is rejected. As described in, for example, Japanese Patent Application Laid-Open No. 56-129070, the drop-down type selectively drops defective products having different dimensions and shapes from non-defective products through gaps formed in the moving floor.

[0003]

A bottled product in which a bottle is filled with an appropriate amount of liquid such as a beverage or a liquid detergent and a stopper or a cap is provided at an opening is transported in an erect state on a line conveyor at a high speed. Manufactured. At this time, the deformation of the bottle, the excess or deficiency of the filling amount, the presence or absence of a label, the quality of closure, and the like are monitored on the running line, and the defective product is excluded from the line. The use of the above-described known defective product removing apparatus for removing defective products in bottled products causes various problems. For example, in the above-described rotary plate type, when a non-defective product passes through the sorting area of the transport path, the rotary plate does not operate, and the rotary plate rotates only when a defective product is detected, and the defective product is defective. The revolving plate is to return to the original position immediately after the defective product is eliminated. Therefore, the rotary plate needs one reciprocating rotation to eliminate one defective product. Takes a relatively long time. For this reason, there is a limit to increasing the line transfer speed.If the line runs too fast, a good product following the defective product comes in contact with the rotating plate that is returning, and falls or breaks, causing the subsequent bottle to stagnate and the line to be stagnated. Operation becomes impossible. At this time, the liquid in the bottle may be scattered to pollute the environment. On the other hand, among the dropped floor type rejection apparatus,
The method of selectively dropping defective products from a gap in a moving floor as described in Japanese Patent No. 129070 cannot be used in a production line of bottled products transported in an upright state. In the case where the floor is opened only when a defective product is detected, if the dropped defective product is before or after plugging, the liquid will flow out or scatter and waste resources and pollute the environment. I do. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and therefore has an object to eliminate defective products at high speed even when manufacturing bottled products on a line, and to convey non-defective products. It is an object of the present invention to provide a rejection device which does not hinder the operation and eliminates problems such as breakage of bottles, waste of resources and environmental pollution.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an exclusion plate which reciprocates across a transport path in a sorting area of a transport path for transporting a group of articles. When a defective product is detected in the moving article group and the defective product reaches the sorting area, the rejection plate moves one way from one side of the conveyance path to the other side to remove the defective product. Provided is a defective product elimination device characterized by discharging to any one side of a conveyance path.

[0005] In the rejection device of the present invention,
Since the rejecting plate only needs to move in one direction in one direction to remove one defective product, the rejecting operation of the rejected product is faster than that of the conventional rotary plate type rejecting device requiring reciprocating movement. Further, since there is no return operation, the running of the subsequent good product is not hindered by the rejection plate.

It is preferable that the rejection device of the present invention is provided with a buffer member for flexibly receiving the rejected product discharged by the rejection plate on the side of the transport path. Since the defective product is discharged to the side of the transport path, when it is discharged at a high speed, it receives an impact when it comes into contact with a wall surface in the front of the discharge direction.
In particular, in a production line for bottled products, the above-described cushioning member reduces the impact, and can prevent the bottle from tipping over, breakage, and scattering of the liquid content.

[0007] It is preferable that a defective product discharge path for discharging defective products discharged by the rejection plate is provided on both sides of the transport path. According to the rejection apparatus of the present invention, rejects are alternately discharged to both sides of the transport path.
Therefore, if defective product discharge paths are provided on both sides of the transport path, they can be merged and integrated into one line, or they can be continuously transported to the defective product processing step while each of them remains a separate line. In addition, stagnation of defective products can be prevented.

[0008] It is preferable that a swing stopper for preventing the defective product from swinging is provided in the defective product carrying path. Especially in the production line of bottled products, if the defective product is one before plugging or the plug is defective, shaking in the defective product discharge path may cause the liquid content to scatter or the bottle to fall over, contaminating the environment. There is. The anti-swing member prevents environmental pollution due to loss or scattering of the contents liquid by preventing the reject in the reject path. The anti-sway member may be composed of, for example, a group of leaf springs that are mounted so that the distal end thereof fluctuates in the traveling direction along the side of the defective product carrying path.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show one embodiment of the present invention. In FIG. 1, this defective product removing device 10 is provided in a sorting area 1A of a transport path 1 for feeding a semi-finished product after filling a bottle with a liquid and capping the bottle in a production line of a bottled product. I have. The semi-finished product sent to the transport path 1 includes, in addition to the nondefective product G properly capped, a defective product N which is not capped or whose screwing of the cap is incomplete is mixed. These defective products are detected by a photoelectric sensor 2 provided in front of the sorting area 1A.

The rejection device 10 is generally provided with rejection plates 17 reciprocating across the transport path 1 and on both sides of the transport path 1 for transporting rejects N discharged by the rejection plates 17. Defective product take-out path 12 that carries out in the same direction as path 1
A and 12B, buffer members 13A and 13B for flexibly receiving the defective products N discharged by the rejection plate 17 on the defective product discharge paths 12A and 12B, respectively, and along the outer portions of the defective product discharge paths 12A and 12B. It is provided with the provided anti-swing members 14A and 14B.

As shown in FIG. 1 and FIG.
7 is connected to a piston member 16 mounted on a gantry 15 fixed on the sorting area 1A.
Reciprocates according to a command from a computer (not shown) that receives the defective product detection signal from the sensor 2. The rejecting plate 17 does not hinder the progress of the non-defective product G while passing through the sorting area 1A, and when the defective product N is transported to the sorting area 1A, one side of the transport path 1, for example, the defective product unloading path 12
The one-sided movement from the side B to the other side, for example, the defective product discharge path 12A, discharges the defective product to one of the defective product discharge paths 12A and 12B, in this example, the defective product discharge path 12A.

The cushioning members 13A and 13B serve to reject defective products discharged by the rejection plate 17 respectively.
It consists of a leaf spring member which is received on the 2A or 12B in an upright state and is guided in the traveling direction of the defective product carrying path. The anti-sway members 14A, 14B are each formed of a group of leaf springs mounted such that the ends of the anti-sway members 14A, 14B flow along the sides of the defective product carrying paths 12A, 12B in the traveling direction.

The rejection device 10 operates as follows. The semi-finished bottled product traveling on the transport path 1 is monitored by the sensor 2, and the height of the defective product N which is not covered or whose screwing of the cap is incomplete is out of the allowable range of the good product G. Detected by
This detection information is sent to the computer, and when the defective product N reaches the sorting area 1A, the piston member 16 moves one time in the projecting direction or the suction direction according to a command from the computer. As a result, the rejection plate 17 makes a one-way movement at a high speed in a direction crossing the transport path 1, and discharges the defective product N to the defective product output path 12A, for example, as shown in the figure. In this state, the rejection plate 17 is located on the side of the defective product discharge path 12A as indicated by 17 ', so that the non-defective product G following the defective product N
It is possible to pass through the sorting area 1A of the transport path 1 without being hindered.

The operation of the elimination plate 17 causes the defective product carrying path 12
The defective product N discharged to the side A is flexibly received by the cushioning member 13A in an upright state, so that no liquid leakage due to the impact of the collision occurs. The received defective product N is guided in the traveling direction of the defective product discharge path 12A, and is sent to a defective product processing step (not shown) while being kept in an upright state by the defective product discharge path 12A. Since the anti-sway member 14A is provided in the defective product carrying path 12A, it is possible to prevent the defective product N from swaying during transportation and the content liquid being scattered or falling.

When a defective product is detected in the succeeding semi-finished product on the transport path 1, the rejection plate 17 is moved to the defective product output path 12.
By performing a one-way motion from the side A to the defective product discharge path 12B at high speed, the defective product N is discharged to the defective product discharge path 12B, and a defective product (not shown) without the content liquid being scattered or falling as in the previous case. Sent to processing step.

When the defective product removing apparatus 10 of the above embodiment was used, the operating speed of the transport path 1 capable of transporting semi-finished products smoothly while removing defective products N was 38 m / min.
In addition, there was no environmental pollution due to scattering of the content liquid when removing defective products. On the other hand, when the conventional rotary plate type rejection device is used, the operation speed of the transport path 1 is limited to 21 m / min. Or, the product fell down and could not be transported, and the contents were scattered violently from defective products, thus polluting the environment.

[0017]

According to the rejection apparatus of the present invention, the rejection plate moves one way from one side to the other side across the transport path to discharge the rejects to the side. The speed is increased, and it is possible to improve the transport efficiency of the transport path while accurately eliminating defective products without obstructing subsequent transport of good products. If a cushioning member that flexibly receives the defective product discharged by the rejection plate on the side of the transport path and / or a swing-stop member that prevents the defective product from swinging is provided in the defective product discharge path, damage to the defective product may occur. Liquid leakage is prevented, and defective products such as bottles containing liquids can be sorted out without waste of resources or environmental pollution.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the embodiment.

[Explanation of symbols]

 1: Conveyance path 1A: Sorting area 2: Sensor 10: Defective product elimination device 12A, 12B: Defective product discharge path 13A, 13B: Buffer member 14A, 14B: Sway prevention member 15: Stand 16: Piston member 17: Reject plate G : Good N: Defective

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takaharu Sakazume 1-3-7 Honjo, Sumida-ku, Tokyo F-term in Lion Corporation (reference) 3F017 AA02 AB07 BA12 BA17 3F079 AD11 CA19 CA41 CB31 CB34 CC04 DA11 DA21

Claims (4)

[Claims] 1. A rejecting plate which reciprocates across a transport path is provided in a sorting area of a transport path for transporting a group of articles, and a defective article is detected in the group of articles moving on the transport path and the defective article is detected. When reaching the sorting area, the rejection plate moves one way from one side of the transport path to the other side to discharge the defective product to one side of the transport path. Defective device. 2. The defective product removing device according to claim 1, further comprising a buffer member for flexibly receiving a defective product discharged by the removing plate on a side of a transport path. 3. The defective product according to claim 1, wherein a defective product discharge path for discharging the defective product discharged by the rejection plate is provided on both sides of the transport path. Elimination device. 4. The defective product removing device according to claim 3, wherein a swing preventing member for preventing the defective product from swinging is provided in the defective product carrying path.