JPH06239449A - Sampling can discharging method and device therefor - Google Patents

Abstract

PURPOSE:To discharge sampling cans in perfect order without damaging, deforming or overturning the cans even if the cans are moving in contact at high speed on a carrying conveyor while coping with sampling on the way. CONSTITUTION:A can discharge rubber roller 3b, disposed at the side part of a second carrying conveyor 7, in a position opposed to the inlet part to a discharge conveyor 8 from the second carrying conveyor 7, is used, and this can discharge rubber roller 30b is rotated in the moving direction of the second carrying conveyor 7 by a motor 30c. At the sampling time, the can discharge rubber roller 30b is retreated in the direction orthogonal to the second carrying conveyor 7 by an air cylinder 30d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for checking the filling state or the winding state of a specific single or a plurality of cans among the winding-finished cans which are continuously moved on a conveyor of a canning production line. In particular, the present invention relates to a sampling can discharging method and apparatus for discharging from a transporting conveyor onto a discharging conveyor.

[0002]

2. Description of the Related Art Heretofore, as a sampling can discharging device for sampling a specific can of a can finished winding without stopping a manufacturing line, for example, the following devices are known.

(1) Board method As shown in FIG. 9, a plate (board) is fixed at a certain angle with respect to the flow of cans on a conveyor, and the cans received by the boards are discharged to the discharge conveyor side. , JP-A-5
It is disclosed in Japanese Patent Laid-Open No. 6-116220, Japanese Patent Laid-Open No. 1-285523, and the like.

(2) Push plate system As shown in FIG. 10, a plate is pushed out in a direction orthogonal to the flow of cans on a conveyor and the cans are discharged to the discharge conveyor side. JP-A-1-285523 It is disclosed in Japanese Patent Publication No. 1-8333 and Japanese Patent Publication No. 3-71940.

(3) Brush roller system As shown in FIG. 11, all the cans are brought into contact with the rotating brush rollers fixedly arranged with respect to the flow of the cans on the conveyor, and the force given by the rotating brush rollers is used. A lightweight can having a small filling amount is discharged to the discharge conveyor side, which is disclosed in JP-A-63-189319.

[0006]

However, the conventional sampling can discharging device described above has the following problems.

(1) In the board method, since the cans are received by the boards arranged at a certain angle, the cans discharged to the discharge conveyor side rotate in the direction of the arrow in FIG. 9 and the sampling can becomes unstable. In particular, the can easily falls when sampling at high speed.

Further, as sampling conditions, a sufficient space between the cans on the conveyer conveyor is set, and the speeds of the conveyer conveyor and the discharge conveyer speed are not matched.
If the practical level sampling success rate is not achieved and one of the conditions of the can interval and the conveyor speed is not satisfied, the sampling success rate becomes lower than the practical level.

Furthermore, it is impossible to sample only one or a few cans which are apparently visually defective among the cans flowing on the conveyor.

(2) Since the push plate system obtains a discharge force sufficient to discharge to the discharge conveyor side by the combined force of the conveying force given to the can and the pushing force given from the plate, The pushing force given to it increases, deforming, damaging or tipping the can,
Even if it is judged by the sampling inspection that the filling amount and winding tightening are acceptable, it cannot be returned to the production line due to the loss of commercial value.

(3) In the brush roller method, since the rotating brush roller fixedly arranged with respect to the flow of cans on the conveyor is brought into contact with all the cans, the printing on the surface of the cans is damaged. Or, a sticker attached to the surface of the can may be peeled off.

Further, this method is used only for the purpose of discharging a lightweight can having a small filling amount to the discharge conveyor side by the force given by the rotating brush roller. For example, the filling amount of the filler is insufficient or the seamer is wound. It cannot be used for the purpose of sampling during the sampling inspection for defective tightening.

The present invention has been made in view of the above problems, and an object of the present invention is a can that moves on a conveyor at a high speed and in contact while being compatible with intermediate sampling. Even so, it is an object of the present invention to provide a sampling can discharging method and apparatus capable of achieving a high level of the required performance of discharging a sampling can in an orderly manner without damaging, deforming or tipping the can.

[0014]

In order to solve the above problems, in the sampling can discharging device of the present invention, the sampling can discharging device is arranged at a side portion of the conveying conveyor, which is opposed to an entrance portion from the conveying conveyor to the discharging conveyor. Using a can discharge roller,
This can discharge roller, which has a cushioning material on the roller surface, is rotated in the moving direction of the conveyor (a part of the surface facing the conveyor moves in the same direction as the moving direction of the conveyor).
At the same time, it was used as means for advancing and retracting in a direction orthogonal to the conveyor during sampling.

That is, in the sampling can ejecting device for ejecting a specific single or a plurality of cans out of the cans after completion of winding which are continuously moved on the conveying conveyor of the canning production line from the conveying conveyor to the discharging conveyor, A side part of the transfer conveyor, which is arranged at a position facing the entrance part from the transfer conveyor to the discharge conveyor, and a can discharge roller having a cushioning material on the roller surface, and the can discharge roller is rotated in the moving direction of the transfer conveyor. (Roller rotation driving means for moving a part of the surface facing the conveyer conveyor in the same direction as the moving direction of the conveyer conveyor) and roller advancing / retracting means for moving the can discharge roller forward and backward in a direction orthogonal to the conveyer conveyor. A sampling can detecting means for detecting that a specific can to be sampled has arrived at a position immediately before the can discharge roller, and the sampling can detecting means. Advancing to said roller advancing drive means based on a detection signal from the pulling cans detecting means, it stops,
Sampling can discharge control means for outputting a command to move backward.

Sampling can discharge, in which a specific single or a plurality of cans among the end-of-roll cans that continuously move on the transport conveyor of the canning production line are discharged onto a discharge conveyor branched from the transport conveyor, is described below. It is done through the process.

(1) Sampling can detecting step for detecting that a specific can to be sampled has come to a position just before the can discharging roller of the discharging device (2) When a sampling can is detected, a cushioning material is provided on the surface and the transfer conveyor is moved. Discharge roller advancing process of advancing the can discharge roller rotating in the direction to the position where it slightly overlaps the sampling can (3) The sampling can moving on the conveyor is
The sampling can is discharged onto the discharging conveyor by rotating and contacting the can discharging roller rotating in the above-mentioned direction at a certain angle to give the sampling can a function of suppressing the rotation of the can and a function of pushing out toward the discharging conveyor. Sampling can discharge process (4) Can discharge roller retracting process that retracts the can discharge roller to a position where it does not contact the non sampling can before the non sampling can moving on the conveyor moves to the can discharge roller position.

[0018]

[Operation] The following operation is exhibited by discharging the sampling can.

When a sampling can is discharged, a can discharging roller is used, which is in rotary contact with only one can, and the sampling can is discharged by advancing and retracting the can discharging roller. Therefore, the sampling can is discharged according to the necessity of sampling. The cans can be discharged by moving the roller back and forth, so it has the capability of sampling during the process.

Sampling is performed only by advancing the can discharge roller to a position where the can discharge roller slightly overlaps with the sampling can. Therefore, the can discharge roller has a high forward / backward response and sampling timing can be easily set. You can sample the can moving up.

Since the can discharge roller has a cushioning material on its surface and is rotating, the can discharge roller does not come into contact with the can in an impact and does not damage the can.

That is, at the time of discharging the can, the sampling can is brought into contact with the can discharging roller projecting on the conveyor at an angle, but since this contact is rolling contact with the rotating can discharging roller, friction occurs. No resistance,
Since the contact surface changes sequentially, friction resistance occurs between the moving can surface and the plate due to contact, and the contact surface concentrates in one place like the push plate method, and a large impact force acts on the can. There is no. Therefore, even if the can discharge roller comes into contact with the can, the can is not deformed by a dent or the like. The discharging force of the can is given by the conveying force of the conveyor and the rotating force from the can discharging roller.

When the moving sampling can is collided with the can discharge roller at an angle, when the can is separated from the roller, the can rotates in the moving direction of the conveyor due to the friction between the two due to the contact. Part of the surface on the moving side moves in the direction opposite to the moving direction of the conveyor). However, since the can discharge roller is rotated in advance in the moving direction of the transfer conveyor (a part of the surface facing the transfer conveyor and the sampling can moves in the same direction as the moving direction of the transfer conveyor), the rotational force generated in the can Is canceled by the rotating force of the can discharge roller, and the rotation of the can is suppressed, which eliminates the instability when the can moves to the discharge conveyor while rotating, and the can falls when discharging the sampling can. Is prevented.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

First, the structure will be described.

FIG. 1 is a plan view showing a sampling can discharging device of an embodiment of the present invention, FIG. 2 is a side view showing a sampling can discharging device of the embodiment, and FIG. 3 is a canning production line to which the embodiment device is applied. FIG. 4 is a schematic plan view and FIG. 4 is a block diagram showing a sampling can discharge control system.

In FIG. 3, 1 is a filler (filling machine),
2 is seamer (can lid wrapping machine), 3 is filler 1 and empty can C
Infeed conveyor for supplying A, 4 for infeed turret, 5 for filler 1 for the first conveying conveyor for supplying CB to the seamer 2 for closing, 6 for discharge turret for the seamer 2, 7 for closing CC A second conveyor (corresponding to the conveyor of claims) for conveying
Reference numeral 8 designates a specific single or a plurality of sampling cans C out of the canned end cans CC that move in series on the second conveyor 7.
It is a discharge conveyor that discharges S, and the second transfer conveyor 7
A conveyor belt that is parallel to this and moves in the same direction is installed on the side of the
A guide for restricting the traveling direction of is disposed obliquely to form the entrance portion of the discharge conveyor.

The filler 1 includes a filler bowl 23.
Is rotated to detect the reference valve, the filler reference valve sensor 11b is attached to the filler main turret 23,
The detection dogs 24 are attached to the filler fixed housing side, respectively. Further, a filler can sensor 13b for detecting that an empty can CA has entered the filler bowl 23 from the infield turret 4 is attached on the outer peripheral side of the can movement locus.

In the seamer 2, the seaming turret 25 rotates to detect the reference pocket, so that the seamer reference pocket sensor 11a has the seaming turret 2.
5, the detection dogs 26 are attached to the seamer fixed housing side, respectively. In addition, a can CB whose contents are filled from the filler 1 to the seamer 2 in the middle of the first conveyor 5 for supplying the can from the filler 1 to the seamer 2.
A sear can sensor 13a for detecting the supply is provided.

Seamer 2 discharge turret 6
A can output sensor 14 is provided at the exit position of the discharge turret 6 to detect that the can finished winding has been discharged. Further, the seamer 2 has an encoder 12 attached to a shaft that makes one rotation each time one can is fed.

On the downstream side of the second conveyor 7, among the cans CC that have been wound up and are moving continuously on the conveyor, the cans of the pocket numbers of the filler 1 or the seamer 2 designated by the sampling start button 38 described later are provided. Sampling can discharge unit 3 for sampling the specified number of cans from the second transfer conveyor 7 to the discharge conveyor 8
0 is placed. The sampling can discharge unit 3 is provided on the upstream side of the sampling can discharge unit 30.
A sampling timing sensor 16 (corresponding to sampling can detecting means in the claims) is provided at a position where the distance from 0 is equal to or less than the outer diameter of the can.

In FIG. 3, reference numeral 33 is a second conveyor conveyer encoder, 34 is an inspection table for randomly sampling the cans CC of the end of winding and manually inspecting them, and 35 is a sampling can sensor.

In FIGS. 1 and 2, the sampling can discharge unit 30 includes a unit base 30a and a second base.
Can discharge rubber roller 30b (corresponding to a can discharge roller) arranged at a side part of the conveyer 7 and at a position facing an entrance portion from the second conveyer 7 to the discharge conveyer 8.
And the can discharge rubber roller 30b to the second conveyor 7
Motor 30c (corresponding to a roller rotation driving means) for rotating in the moving direction of, the air cylinder 30d (corresponding to a roller advancing / retracting driving means) for advancing and retracting the can discharge rubber roller 30b in a direction orthogonal to the second conveyor 7, and a roller pulley. 30e, motor pulley 30f, and tension pulley 30
The belt 30h is wound around the g, and the guide belt 30j is wound around the can discharge rubber roller 30b and the fixed pulley 30i. As shown in FIG. 2, the can discharging rubber roller 30b is composed of one rubber roller on the lower side and two rubber rollers on the upper side, but one rubber roller on the lower side and three rubber rollers on the upper side are shown. In this way, the number of rubber rollers can be increased or decreased according to the size of the can.

Further, at the position of the sampling timing sensor 16, there is provided an introduction guide plate 36 which defines the width direction of the can end CC of winding.

In FIG. 4, reference numeral 37 denotes a sampling controller (corresponding to sampling can discharge control means) which controls sampling can discharge by a drive command to the motor 30c and the air cylinder 30d.
It has a power supply circuit AVR, an input / output circuit I / O, a central processing unit CPU, a motor driver, a cylinder driver and a display driver.

To the sampling controller 37,
Sampling start button 38 and motor speed setting device 39
Input information is provided from the photoelectric sensors 14, 16 and 35, the filler control board, the seamer control board, and the like. Also,
The motor driver of the sampling controller 37 outputs a drive command to the motor 30c to obtain the set rotation speed, and the cylinder driver outputs an advance, stop, and retract drive command to the air cylinder 30d to obtain optimum sampling timing. Then, the display driver outputs a display command of sampling information to the display 40, and the input / output circuit I / O outputs feedback sampling information to the seamer control panel.

Next, the operation will be described.

[Sampling Can Discharging Action] A specific single or a plurality of sampling cans C among the end-of-tightening cans CC that continuously move on the second conveyor 7 of the canning production line.
Sampling can discharge for discharging S from the second transfer conveyor 7 to the discharge conveyor 8 is performed after the following steps.

(1) Sampling can detection step (FIG. 5) in which the sampling timing sensor 16 detects that a specific can to be sampled has come to a position immediately before the can discharge rubber roller 30b of the sampling discharge unit 30 (FIG. 5). For example, as described in Japanese Patent Laid-Open No. 3-71940, selection of continuous discharge or individual discharge, designation of discharge cans, management of top cans of seamer 1 and management of top cans of filler 2 are specified. Etc.

(2) A position at which the can discharge rubber roller 30b, which is made of rubber as a cushioning material and is rotated in the moving direction of the second conveyor 7, is slightly overlapped with the sampling can CS when the sampling can is detected. Discharging roller advancing step for advancing by the air cylinder 30d (FIG. 5) Here, the rotation speed of the can discharging rubber roller 30b depends on the conveying speed of the second conveying conveyor 7, the size and weight of the can, and the like. At, the rotation speed is set to the optimum value for can discharging.

(3) The sampling can CS that has moved
The sampling can CS is provided with the action of suppressing the can rotation that occurs when the rotating can discharging rubber roller 30b is brought into contact with the rotating can discharging rubber roller 30b at a certain angle and the action of pushing the sampling can CS toward the discharging conveyer 8. (8) Sampling can discharging process for discharging onto 8 (4) Non-sampling end cans CC of non-sampling that have moved on the second conveyor 7 are discharged before reaching the can discharging rubber roller 30b. Air cylinder 30d to a position where the rubber roller 30b does not come into contact with the non-sampling end can CC
Ejection roller retracting process (Fig. 8) [Sampling compatibility] Only 1 when discharging the sampling can
Since the can discharging rubber roller 30b capable of rotating contact with only one can is used and the sampling can CS is discharged by advancing and retracting the can discharging rubber roller 30b, by moving the can discharging rubber roller 30b forward and backward according to the necessity of sampling. Cans can be discharged, and not only continuous sampling and individual sampling but also manual and automatic midway sampling are possible.

[High-speed compatibility] Since sampling is performed by advancing the can discharge rubber roller 30b to a position slightly overlapping the sampling can CS, the can discharge rubber roller 30b has a high forward / backward response and sampling timing is easy. The second at high speed and in contact
Sampling of cans moving on the conveyor 7 can be performed.

The cylinder stroke amount in the embodiment is
It is 5 mm to 7 mm, and a sufficiently high forward / backward response is obtained.

[Prevention of damage and deformation of can] Since the material of the can discharging rubber roller 30b is a cushioning material and rotates in the same direction as the moving direction of the sampling can CS, the can discharging rubber roller pushes the sampling plate against the sampling can CS. It does not make a shocking contact like a contact with a sample can and does not damage the sampling can CS.

That is, when the sampling can CS is discharged, the sampling can CS is brought into contact with the can discharging rubber roller 30b slightly protruding above the conveyor 7 at a certain angle. This contact causes the rotating can discharging rubber roller 30b. Since it makes rolling contact with, the frictional resistance does not occur and the contact surface changes sequentially, so that a large force does not act on the can unlike the push plate type pushing force. Moreover, this carrying force is due to the sampling can CS and the can discharging rubber roller 30b.
The force contact is kept low by the buffer contact with.

Therefore, even if the can discharging rubber roller 30b and the sampling can CS come into contact with each other, the sampling can CS is not deformed by a dent or the like.

The sampling can CS is discharged from the conveyor 8
As shown in FIG. 6, the discharging force to be discharged to is given by the sum of the tangential component force of the conveying force and the rotational force from the can discharging rubber roller 30b, and the reaction force of the conveying force in the normal direction.

[Preventing Effect of Can Falling Over] The moving sampling can CS is moved at a certain angle from the can discharging rubber roller 3
When it collides with 0b, the sampling can CS normally tries to rotate (clockwise in FIG. 6) in the same direction as the moving direction of the second conveyor 7 when leaving the can discharging rubber roller 30b. However, in reality, since the can discharge rubber roller 30b is rotated in advance in the moving direction of the second conveyor 7 (clockwise in FIG. 6), the rotation of the sampling can CS (the surface contacting the can discharge rubber roller 30b is The force that moves in the opposite direction to the can discharge rubber roller 30b) is offset by the rotational force provided by the can discharge rubber roller 30b, and the rotation of the can is suppressed, so that the can is unstable when the can transfers to the discharge conveyor 8 while rotating. Is eliminated, and the sampling can CS is prevented from falling when the sampling can CS is discharged.

Next, the effect will be described.

The side portion of the second conveyer 7
Using a can discharge rubber roller 30b arranged at a position facing the entrance portion from the transport conveyor 7 to the discharge conveyor 8,
As shown in FIG. 5, the can discharge rubber roller 30b is rotated by a motor 30c in the moving direction of the second conveyor 7 and is moved forward and backward by an air cylinder 30d in a direction orthogonal to the second conveyor 7 during sampling. , A specific sampling can C out of the canned end cans C C that continuously move on the second conveyor 7 of the canning production line
Since S is discharged from the second conveyer conveyor 7 onto the discharge conveyer 8 by rotating contact with the can discharge rubber roller 30b, it is possible to perform sampling on the way and at high speed and in contact with the second conveyer conveyor. A sampling can discharge method and device that can achieve a high level of the required performance of discharging the sampling can CS in an orderly manner without damaging, deforming, or tipping the can even if the wall thickness is very thin. Can be provided.

By the way, the results of comparative experiments conducted by the present inventors are shown below.

* Conventional board system shown in FIG. 9 (water containing a surfactant was flown on each conveyor to improve the sliding of the can) Conditions: Second conveyor speed 119 m / min Discharge conveyor speed: 4th speed (as shown in the table below) ・ 4 types of can spacing (as shown in the table below) ・ Number of cans: 8 cans are repeatedly flowed ・ Cans outer diameter: 66 mm ・ Can type: Canned aluminum for beer with a wall thickness of 0.0112 mm・ Content filling amount: 500 g ・ Can internal pressure: 0.7 kg / cm ² Number of experiments ・ 10 times under each condition Experiment results ・ Number of molecules shown in the table below, number of molecules successfully discharged

[Table 1] * Rotating roller system of this example (without using water containing surfactant) (Continuous sampling experiment 1) Conditions-Second transport conveyor speed 156 m / min-Discharge conveyor speed 117 m / min-Can spacing 0 mm-Can Number 8 cans are repeatedly flown ・ Can outer diameter 66 mm ・ Can type Aluminum can for beer with can body wall thickness 0.0102 mm ・ Content filling amount 350 g ・ Can inner pressure 0.7 kg / cm ²・ Roller outer diameter and rotation speed 48 mm / 844 rpm Number of experiments ・ 30 times under the above conditions ・ Results of discharge were all successful, and there was no tipping can or deforming can.

(Continuous Sampling Experiment 2) Conditions-Second transport conveyor speed 156 m / min-Discharge conveyor speed 88 m / min-Can spacing 0 mm-Number of cans 8 cans are repeatedly flowed-Can outer diameter 66 mm-Can type can barrel wall thickness Aluminum cans for beer of 0.0112 mm ・ Content filling amount 500 g ・ Can internal pressure 0.7 kg / cm ²・ Roller outer diameter and rotation speed 48 mm / 637 rpm Number of experiments ・ 50 times under the above conditions Experimental results ・ Ejection was successful.

There is one tumbling can due to the unevenness of the bottom of the can. No deformation can.

(Sampling Experiment 1 in the middle) Conditions-Second transport conveyor speed 156 m / min-Discharge conveyor speed 117 m / min-Can spacing 0 mm-Number of cans 8 cans-Can outer diameter 66 mm-Can type can body wall thickness 0.0102 mm Aluminum can for beer ・ Content filling amount 350g ・ Inner pressure 0.7kg / cm ²・ Roller outer diameter and rotation speed 48mm / 844rpm ・ Discharging method The first 1st can is passed and the 2nd and 3rd cans are discharged. , The number of times that subsequent cans are allowed to pass ・ 30 times under the above conditions ・ Experimental results ・ Ejection was successful.

There are 2 cans that are tumbled due to unevenness on the bottom of the can. No deformation can.

(Intermediate Sampling Experiment 2) Conditions-Second transport conveyor speed 156 m / min-Discharge conveyor speed 88 m / min-Can spacing 0 mm-Number of cans 8 cans-Can outer diameter 66 mm-Can type can body wall thickness 0.0112 mm Aluminum can for beer ・ Content filling amount 500g ・ Inner pressure 0.7kg / cm ²・ Roller outer diameter and rotation speed 48mm / 637rpm ・ Discharging method The first 1st can is passed and the 2nd and 3rd cans are discharged. , Number of times of experiments to pass subsequent cans ・ 30 times under the above conditions ・ Experimental results ・ Ejection was successful and there was no tipping or deformation.

Although the embodiments have been described above with reference to the drawings, the specific configuration is not limited to the embodiments, and modifications and additions within the scope of the present invention are included in the present invention. Be done.

[0059]

As described above, according to the present invention, the can discharging roller is arranged at the side of the conveying conveyor, which is arranged at the position facing the inlet portion from the conveying conveyor to the discharging conveyor. This can discharge roller, which has a cushioning material on the roller surface, is rotated in the moving direction of the conveyor, and is used as a means for advancing and retracting in the direction orthogonal to the conveyor at the time of sampling. Since a specific sampling can among the finished cans is discharged from the conveyor to the discharge conveyor by rotating contact with the can discharge roller, the sample can be sampled on the way while being in contact at high speed and on the conveyor. Even when moving cans, sampling cans are ejected in an orderly manner without damaging, deforming, or tipping the cans. Effect is obtained that it is possible to provide a sampling cans discharge method and apparatus can achieve the required performance at a high level of order.

[Brief description of drawings]

FIG. 1 is a plan view showing a sampling can discharge unit which is a main part of a sampling can discharge device according to an embodiment of the present invention.

FIG. 2 is a side view showing a sampling can discharge unit of the embodiment.

FIG. 3 is a schematic plan view showing a canning production line to which the sampling can discharge method and apparatus of the embodiment are applied.

FIG. 4 is a block diagram showing a sampling can discharge control system of the embodiment.

FIG. 5 is an operation explanatory view showing a sampling can detecting step and a can discharging rubber roller advancing step in the sampling can discharging method of the embodiment.

FIG. 6 is an operation explanatory view showing a contact state between the can and the roller in the sampling can discharging step in the sampling can discharging method of the embodiment.

FIG. 7 is an operation explanatory view showing a sampling can discharging state in a sampling can discharging step in the sampling can discharging method of the embodiment.

FIG. 8 is an operation explanatory view showing a can discharge rubber roller retreating step in the sampling can discharge method of the embodiment.

FIG. 9 is a diagram showing a conventional sampling method for discharging a sampling can.

FIG. 10 is a diagram showing a conventional sampling plate discharging method using a push plate method.

FIG. 11 is a view showing a conventional sampling roller discharging method using a brush roller method.

[Explanation of symbols]

7 Second Conveyor (Conveyor) 8 Discharge Conveyor 16 Sampling Timing Sensor (Sampling Can Detecting Means) 30b Can Discharging Rubber Roller (Can Discharging Rollers) 30c Motor (Roller Rotation Driving Means) 30d Air Cylinder (Roller Advance / Retract Driving Means) 37 Sampling Controller (sampling can discharge control means)

Claims (2)

[Claims] 1. Sampling for discharging a specific single or a plurality of cans (hereinafter referred to as sampling cans) among the cans after completion of winding which are continuously moved on the transfer conveyor of a canning production line from the transfer conveyor to the discharge conveyor. In the can discharge method, a sampling can detection process that detects that the specific can to be sampled has arrived at the position just before the can discharge roller of the discharge device, and at the time of detecting the sampling can, the cushioning material is provided on the surface and Discharging roller advancing step of advancing the rotating canister (part of the surface facing the conveyor conveys in the same direction as the conveyor is moved) to a position where it slightly overlaps the sampling can. The sampling can that has moved on the transport conveyor and the angle of the can discharge roller rotating in the above direction. Sampling can discharging process of discharging the sampling can onto the discharging conveyor by giving the sampling can the effect of suppressing the rotation of the can and pushing it toward the discharging conveyor by rotating and holding the sampling can. A sampling can discharging method comprising: a can discharging roller retreating step of retracting the can discharging roller to a position where it does not contact the non-sampling can before the sampling can reaches the position of the can discharging roller. 2. A sampling can ejecting device for ejecting a specific single or a plurality of cans among end cans that are continuously wound on a conveying conveyer of a canning production line from the conveying conveyer to a discharging conveyer, A side portion of the transfer conveyor, which is arranged at a position facing an entrance portion from the transfer conveyor to the discharge conveyor, and a can discharge roller having a cushioning material on a roller surface, and the can discharge roller is rotated in a moving direction of the transfer conveyor. (Roller rotation driving means for moving a part of the surface facing the conveyor to move in the same direction as the moving direction of the conveyor), and roller advance / retreat driving means for advancing / retreating the can discharge roller in a direction orthogonal to the conveyor. A sampling can detecting means for detecting that a specific can to be sampled has come to a position just before the can discharge roller; Advancing to said roller advancing drive means based on a detection signal from the grayed cans detecting means, it stops, sampling can discharge apparatus characterized in that it comprises a sampling cans discharge control means for outputting a command for retraction.