JPH02166038A - Automatic labelling apparatus - Google Patents

Abstract

PURPOSE:To automatically adhere stickers to the surfaces of cases by operating a photoelectric switch until actuating caused by the intervals between the cases and projecting the stickers forward by specific length on a turn frame during the driving time. CONSTITUTION:Adjustment is performed so that opening and closing of a mirror reflection type photoelectric switch 6 by the movement of cases P placed with specific intervals actuates a label supply mechanism 2, a printer 3, a case moving interval adjuster 4, and a label pressing roller 5 as specified. When the cases P in which various articles are packed are mounted on the tail end of a conveyor 1 one by one, immediately the first case P passes, the drive motor M2 of the label supply mechanism 2, the solenoid circuit of the case moving interval adjuster 4, and the solenoid circuit of the label pressing roller 5 are closed at a time for actuation, the label supply mechanism 2 is actuated until projecting labels L move forward on a turn frame 22, and the label pressing roller 5 descends to the surfaces of the cases P under passes and applies the labels L to the surfaces of the cases P for a specific time.

Description

[Detailed Description of the Invention] (Object of the Invention) The present invention is a novel and simple method for automatically attaching a predetermined adhesive label to the lid surface of a lidded container filled with rabbits and other various products. The present invention aims to provide an automatic label pasting device having a unique structure.

(Prior Art) Most of the various products sold in stores are distributed in pre-filled containers such as packs in a certain amount. The name and manufacturer of the product packed in the container,
- In order to display the manufacturing date and other necessary information, a designated label is usually affixed to the surface of the container lid.

This label has adhesive pre-applied to the back.
They were temporarily attached to a tape-shaped mount with a releasable surface formed at equal intervals, and the tapes had to be manually peeled off one by one and then affixed to the specified locations on the surface of the lid. It was extremely inconvenient. Therefore, instead of having the worker pick up the backing paper and peel off the labels one by one, a device was developed that automatically feeds each label one by one using a manual label peeling machine, and it has become commercially available at a relatively low cost. , which has been adopted by many producers who require labeling, and has become quite contradictory.

This manual label peeling machine sets a roll of tape-like backing paper with a label temporarily attached on it in a holder, and then flips the backing paper with a turn frame so that only the label moves straight at the inverted point. This is so that the temporarily attached state of the label is released by leaving a part of the rear end, and the temporarily attached state of the label is released and the label is removed while taking out the container containing the product flowing on the conveyor etc. The labels that hang out in front of the frame can now be easily received and pasted one by one. As a result, the work was more efficient and the burden on the workers was reduced compared to the previous work, but in the end it still required the hands of the workers. There are limits to efficiency as well as the inability to save on labor costs.Recently, a fully automatic labeling machine has been developed that combines a manual label peeling machine on top of a conveyor. A type of mechatronic device that computerizes a series of necessary operations such as feeding intervals, label presses, printing machines, etc. has become commercially available and is beginning to be introduced by some large-scale producers.

However, although this fully automatic label pasting machine is certainly an excellent device that can perform accurate label pasting work, it is difficult to understand why it is because it incorporates advanced technology and know-how such as being operated by computer control. , the unit price is very high,
Small businesses in rural areas may end up making excessive investments, so even if they know that it is a useful device, it seems that they are having a hard time taking the plunge when it comes to introducing it.

It is true that labels affixed to container lids should be affixed in the correct position and in the correct posture, but in reality they do not require precision mechanical accuracy.
It is enough to achieve the purpose as long as it is pasted in a roughly determined position without bending to an unsightly extent, and depending on the scale of the business, equipment that is as fast as 41 is required. Therefore, in light of these current circumstances, it is also true that many producers with weak business foundations desire a fully automatic labeling device that is inexpensive and has practical value.

In order to respond to these circumstances, this invention worked to develop an automatic label pasting device that can be simplified to the extent that there is no practical problem in terms of accuracy and speed, and can be provided at low cost, and has finally succeeded in realizing it. The configuration is as detailed below.

(Structure of the Invention) As understood from the typical embodiments shown in the drawings, the automatic label pasting device of the present invention basically includes a conveyor 1, a label supply a mechanism 2, a printing TL 13, and a container feed interval adjustment machine. 4
, a label pressing roller 5, a conveyor 1 that continuously conveys lidded containers P using a dedicated drive motor M1, and a mount tension shaft disposed at an appropriate position above the rear end of the conveyor 1 in the direction of movement. A turn frame 22 for returning the label mount 5tar is arranged in front of the label holder 21 in front of the label holder 21 across a space for passing through the lidded container P from the conveyance surface of the conveyor 1. , a mount take-up holder 2 arranged in parallel with a drive roll shaft 23a linked to a drive motor M2 for winding up the label mount S folded back from the turn frame 22;
3, a printing machine 3 with a built-in printing motor M3 disposed between the mount tension shaft 21a and the turn frame 22, and a space on the conveyance surface of the conveyor 1 for the containers with lids 2 to pass through. Inside turn frame 22
This is an automatic label pasting device in which a container feed interval adjustment 614 with a built-in solenoid 41 arranged at a rearward position and a label pressing roller 5 with a built-in solenoid 51 arranged just before the turn frame 22 are combined, respectively. be.

The conveyor 1 is set substantially horizontally, and the drive motor M1
Containers are conveyed at a substantially constant speed by the continuous rotation of an endless belt, and although it is not shown in the figure, in order to keep the attitude of the container constant, the conveying surface is parallel to the conveying direction. It is advantageous to have a structure in which a pair of guide frames are combined with a distance corresponding to the width of the container, and to make the front end of the conveyor visible to the turntable V for the container straft.

The label supply mechanism 2 has a structure in which a label holder 21, a turn frame 22, and a liner take-up holder 23 are combined, and turns the liner set on the label holder 21 via the liner tension shaft 21a. The mount S is guided in a substantially straight line to the frame 22, turned back on the turn frame 22, and wound onto the mount take-up holder 23 via the drive roll shaft 23a. , the mount S is sandwiched between the drive roll shaft 23a operated by the drive motor M2 and the friction roll shaft 23b paired therewith, and the mount S is moved in the direction of the mount take-up holder 23. With,
The four transfers of the drive roll shaft 23a are linked to the mount take-up holder to wind up the mount S.

The opening and closing of the drive motor M2 is linked to a mirror reflection type photoelectric switch 6, which will be described later.
The drive motor M2 is synchronized with the operation of the printing 83 which is connected to the optical fiber photoelectric switch 7 and activated, and when the printing machine 3 performs the printing operation, this drive motor M2 is stopped, and when the printing operation is completed, the mirror reflection type photoelectric switch 7 is operated. The switch 6 is driven until it is activated due to the distance between the containers P, and within this driving time the label L is placed on the turn frame 2.
2 and protrudes a predetermined length from the front.

Note that the trajectory from the mount tension shaft 21a to the turn frame 22 is sloped slightly forward and downward gently, as shown in the illustrated embodiment, so that separation at the turn frame 22 is prevented. The traveling direction of the adhesive-attached label L to be attached is also oriented downward toward the front, so that it can be easily placed on the surface of the mold of the container P to be attached.

In the figure, 21b is a bottom plate 21c that stabilizes the trajectory of the labeled mount S being fed out from the label holder 21 and keeps the sensitivity of the fiber photoelectric switch 7 constant.
and 23c indicate presser pads that prevent the tension of the mount S from becoming too warm when the mount S is stopped intermittently.

The printing machine 3 is a type of glue block printing machine that uses quick-drying indestructible ink for rubber type, which is already known as a stamping machine for stamping dates, etc. on this kind of labels, and other known printing machines. The printing motor M3 is activated by an activation signal from the fiber photoelectric switch 7 for detecting the label disposed in the label supply mechanism 2, and the printing operation is instantaneously executed. Note that in order to test whether this printing operation is performed correctly, it is desirable to incorporate a test operation circuit.

The container feeding interval controller 4 is located within a space through which the lidded container P on the conveyance surface of the conveyor l passes, and is located within the turn frame 22.
In particular, containers P which are located in a more rearward position and are disorganized on the conveyor transport surface.

The distance between containers that are placed and moved without being aware of the distance between them is adjusted from the label supply mechanism 2 to the turn frame 2.
2.It functions to ensure a predetermined interval for synchronizing the labels that are sent forward intermittently,
A container stopper solenoid 41 connected to a timer T2 is operated by opening and closing a mirror reflection type photoelectric switch 6.

The means for temporarily stopping the container P caused by the container stopper solenoid 41 (to put it in a slipping state on the conveyance surface of the conveyor 1) is the 35th! As in the embodiment shown in the enlarged plan view of the main part of U, if the side surface of the container P has an uneven part, the small protrusion rotates in the horizontal plane on the uneven part, and is set by the timer T2. However, in the case of a container P with no unevenness, the container P
It shall be of a suitable construction with the same color so that the actuation of the small pieces that pinch both sides of the body is achieved by the opening and closing of a solenoid.

The label pressing roller 5 is disposed immediately in front of the turn frame 22, and presses and adheres the surface of the label L, which is sent out from the label feeder 2 and protrudes into the conveying surface of the conveyor 1, onto the container P. The function is to completely separate the label L from the mount S by the container P moving with the conveyor 1, and the label holding solenoid 51 connected to the timer T1 is activated within a predetermined time set by the timer T1. The solenoid 51 is released and the restoring spring 5
2, it is returned to the original state in which it was released upward.

Note that the front side of this label pressing roller 5, that is, the conveyor 1
Combine the auxiliary roller 8 on the moving direction side of the label L.
It would be more convenient to adopt a configuration that ensures reliable adhesion to the container P.

A circuit for operating the automatic label pasting machine of the present invention having the above-mentioned configuration is shown in FIG.

That is, a mirror reflection type photoelectric switch 6 arranged so as to cross the conveyance surface of the conveyor I immediately before the turn frame 22 detects the containers P and P1 conveyed by the conveyor 1.
When it is turned ON in the gap between the relay R1 and the label feed motor circuit connected by relay R1 for operating the label supply R structure 2, the label press solenoid circuit for operating the label press roller 5, and the container feed interval adjustment! After closing the container stopper solenoid circuits for fi4 operation, the label holding solenoid circuits and the container stopper solenoid circuits are closed within the time set by the timers Tl and T2 built into each. Make it open.

Only in the label feed motor circuit, relay R2 and relay R3 are combined in parallel, and the negative relay R2 is connected to
As shown in the second factor diagram, the label supply mechanism 2
The fiber photoelectric switch 7 is connected to the fiber photoelectric switch 7 for label gap detection set inside the fiber optic switch 7.
When the gap L1 between the labels L is detected, the relay R2 turns off the relay R3, and at the same time, the circuit on the relay R2 side closes the label feed motor circuit again.

This relay R2, R3 and fiber photoelectric switch 7
Due to this combination, the label feed motor circuit, which had been closed until then by relay R3, is temporarily changed from closed to open, and then is closed again to operate the label feed motor M2. However, at that moment, the fiber photoelectric switch 7 moves from the label gap 1 to the label surface and O
Since it becomes FF, relay R2 is disconnected and relay R
3 is restored and label feed motor M2 is switched to relay R3 again.
1) It means that circuit 1 can continue to operate.

In this way, the label feed motor M2 can achieve an instantaneous stop operation during continuous operation at an optimal position that matches both the size of the container P and the way the label L is pasted on the mount S. Can be done.

On the other hand, the printing motor circuit includes a relay 4.5 and a relay R6 connected in parallel to it, and the relay R6 operates within the time set by the timer 13 connected to the relay R3 in the label feed motor circuit to drive the printing motor. After an activation signal is issued and the print motor M3 is activated, the fiber photoelectric switch 7 detects the label gap Ll, and at the same time the relay R2 is closed, the relay R5 is also closed, and the print motor M3 is activated. And print motor M3
When the print motor M3 rotates once, the relay R4 is activated by the rotation of the print motor M3.
works, the printing motor circuit changes from closed to open, and printing machine 3
to stop at its original position.

In this way, both the label feed motor circuit and the print motor circuit have each relay R2 combined in each circuit.
, 3, 4, 5, and 6 operate due to the detection operation of the label gap L1 of the fiber photoelectric switch 7, the instantaneous stop operation of the label feed motor M2 and the printing operation of the printing motor M3 are synchronized. Become.

In addition, in the above circuit, the fiber photoelectric switch 7 is equipped with a fiber photoelectric switch with an insensitive crushing function to ensure that it operates even if the reflection ratio between the label gap L1 and the label gap L1 is different due to the difference in the type of label L. It is desirable to adopt switch 7.

(Function) In the automatic label pasting device of the present invention having the above-described configuration, first, the labeled mount S is set in the label holder 21, and the labels L, L, etc. are placed on the tip side thereof. After removing an appropriate number of sheets and pulling out only the backing paper S, and submerging the chamber bottom plate 21b, pass it over the support plate 31 of the print 1113 to the turn frame 22, and fold it back from there. It is passed between the drive roll shaft 23a and the friction roll shaft 23b and wound around the self-rolling paper holder 23.

After that, the conveyor 1 and the label supply mechanism 2 are turned on to be in operation, and the mirror reflection type photoelectric switch 6 is blocked by hand for the time being, and the mount S is advanced and the label L wound on the label holder 21, L reaches above the support plate 32 of the printing machine 3. Meanwhile, print l113
Turn off the switch, and turn off the mirror reflection type photoelectric switch 6.
Make sure that the printing 113 does not operate due to opening/closing.

When the label L reaches the bottom of the printing machine 3, turn on the switch of the printing machine 3 and turn on the mirror reflection type photoelectric switch 6 again.
Block the label supply mechanism 2 with your hand and advance the mount S by turning on the label supply mechanism 2, or if it has a built-in test circuit, turn on the switch of the test circuit and check the printing status of the print 113 on the label L. do. At that time, if the printing position is not appropriate, the position and direction of the fiber optic switch 7 is adjusted back and forth, and the switch 7 is operated in the optimal state, and the position where the label supply mechanism 2 stops momentarily is reached. ,
Adjustment is made so that the label L stops instantaneously at the optimum position directly below the printing machine 3.

Before and after this printing test, we will separately determine the position and detection sensitivity of the mirror reflection type photoelectric switch 6, the position of the label pressing roller 5 activated by the mirror reflection type optical switch 6, and the operation of the timer TI for it. Adjust the time, furthermore, the position of the container feed interval MIEl14, which is also activated due to the mirror reflection type photoelectric switch 6, and the operation time of the timer T2 for it, to an optimal state that matches the size of the container P to be adopted;
llll! In order to do this, the containers P are sent one after another from the rear end of the conveyor 1, and the positions of the mirror reflection type photoelectric switch 6, the label pressing roller 5, and the container feeding interval adjustment 1114 are adjusted back and forth, and the operating time of each timer TI, T2 is adjusted. The reflection angle of the mirror 61 must be adjusted carefully because the sensitivity of the mirror reflection type photoelectric switch 6 will vary slightly depending on whether the container P is transparent or not. Must be.

In this way, when the mirror reflection type photoelectric switch 6 opens and closes due to the movement of the container P at a predetermined interval, the label supply mechanism 2, the printing machine 3, the container feed interval fimm4, and the label pressing roller 5 are activated in a predetermined manner. After the adjustment is made so that containers P filled with various products are placed one after another on the rear end side of the conveyor 1, immediately after the first container P has passed, the drive motor M2 of the label supply mechanism 2 is activated. , the solenoid circuit of the container feeding interval adjuster 4, and the solenoid circuit of the label pressing roller 5 operate simultaneously as a leap, and as shown in the enlarged plan view of the main part in FIG. operates until the label L protrudes forward of the turn frame 22, and the label pressing roller 5 descends to the surface of the container 1 that is passing through, presses the label L onto the surface of the container 9 for a predetermined time, and then returns to its original state. The operation returns to the state, and simultaneously, on the other hand, for a predetermined time, container feeding interval [
1 mechanism 4 stops the subsequent container P1 from moving together with the conveyor 1, holds the container P1 in a slip state on the conveyor 1, releases the hold state, and moves the immediately preceding container P
Container P with conveyor 1 again at a predetermined interval from the rear end.
Let 1 move.

During such simultaneous operation, the print 813 placed in the middle of the label supply mechanism 2 is detected by the fiber photoelectric switch 7.
When the label is moving and the gap is detected, the circuit is closed and the drive motor M2 is instantaneously activated.
is stopped to stop the movement of the label L, while at the same time issuing a printing motor activation signal to activate the printing fi3 and printing on the label L. In this state, the circuit on the label supply mechanism 2 side is not open. The mount S is momentarily stopped, and the fiber photoelectric switch 7 continues to detect the gap between labels L and L, but once the printing machine 3 finishes printing, it returns to its original state. At the same time, when the label L is restored, the circuit is constructed so that the circuit of the drive motor M2rla is closed by the relay R3, the drive motor M2 is returned to the operating state, and the label L is advanced. is detected, the circuit returns to its original state of being open, and the stopped state is maintained until the fiber photoelectric switch 7 is activated next time. At this time, the entire circuit is already opened by the mirror reflection type switch 6, and the drive motor M2 of the label supply mechanism 2 is driven until the mirror reflection type optoelectronic switch 6 detects a gap with the following container P2. I will continue.

Thereafter, this intermittent operation is repeated continuously, and the containers P move one after another on the conveyance surface of the conveyor 1.

Labels L, L, printed on PL, P2...
... is automatically pasted.

(Effects) In the automatic label pasting device of the present invention having the above-described configuration, the conveyor 1, the label supply a-ellipse 2, the printing 813, the container feeding interval adjustment FEi4, and the label pressing roller 5 are arranged in a predetermined relationship. , it is realized by a configuration consisting of a combination of two sensors, and the configuration is extremely simple and easy to manufacture, so it can be realized by a complicated and advanced mechatronic configuration that incorporates various control mechanisms. Very cheap compared to (about 1/3 to 115 times the price of conventional products)
It has an excellent feature that it can be provided to customers.

The operability is also complicated because the initial adjustment to suit the size of the container P must be done manually, but once the adjustment is made to suit the size of the container P, the There is almost no need for adjustment, and there is no risk of it becoming too complicated for a device used in industries that do not require many types of containers.Moreover, it achieves a clean adhesion condition that does not pose any practical problems in terms of accuracy. It is possible.

As mentioned above, the automatic label pasting device of the present invention is an extremely economical device for industries such as egg manufacturers that do not need to use multiple types of containers, and is highly economical in terms of pasting accuracy. It has no practical problems, and is useful for those industries where there are many relatively small companies, where it can greatly demonstrate its power to increase corporate efficiency without making excessive capital investments as in the past. It is expected that this device will be highly evaluated as a unique device.

[Brief explanation of the drawing]

The drawings are based on an embodiment representative of the present invention, and FIG. 1 is an overall side view thereof, FIG. 2 is an enlarged plan view of essential parts, and FIG. 3 is a partial illustration of FIG. 2. The enlarged plan view of the main part shown in FIG. 4 is a circuit diagram. 1... Conveyor, 2... Label supply mechanism, 21...
・Same label holder, 21a...Same tension shaft, 21b...Same plan bottom plate, 21c...Same press pad, 22...Same turn frame, 23...Same mount winding boulder-123a...・Driving roll shaft, 23b
...Same auxiliary roll shaft, 23c...Same presser pad, 3...Printing machine, 4...Container feed interval adjustment machine, 4
1...Same solenoid, 42...Same protrusion, 5...
Label holding roller, 51...Same solenoid, 6...
Mirror reflection type photoelectric switch, 61... Mirror 7...
・Fiber photoelectric switch, L...Label, M...
Motor, S...mount, R...relay area

Claims (1)

[Scope of Claims] 1. A conveyor that continuously conveys containers with lids using a dedicated drive motor, a label holder with liner tension shafts arranged in parallel, arranged at an appropriate position above the rear end of the conveyor in the direction of travel, and labels. A turn frame for folding back the label mount, which is arranged above the conveyor conveyance surface in front of the holder across the lidded container passage space, and a drive linked to the drive motor to wind up the folded label mount from the turn frame. A label supply mechanism consisting of a mount take-up holder arranged in parallel with a roll shaft, a printing machine with a built-in printing motor placed between the mount tension shaft and a turn frame, and a turn frame in a container passage space with a lid on the conveyor transport surface. An automatic label pasting device consisting of a container feed interval adjustment machine with a built-in solenoid placed behind the frame, and a label press roller with a built-in solenoid placed just before the turn frame. 2. In the automatic label pasting device according to claim 1, a mirror reflection type photoelectric switch arranged so as to traverse the conveyor conveyance surface immediately before the turn frame attaches containers and containers conveyed by the conveyor. When it turns ON in the gap between The solenoid circuit for the label presser and the solenoid circuit for the container stopper are closed to open within the time set by the timer built into each, and only the label feed motor circuit is connected to two additional relays R2 and R3. By connecting one relay R2 with a fiber photoelectric switch for label gap detection, it is possible to switch from closed to open and close instantly.
In the printing motor circuit, two relays R4 and R5 are combined in parallel with relay R6, and this printing motor circuit is opened, closed, and opened in response to the closing, opening, and closing operations of the label feeding motor circuit. An automatic label pasting device in which the opening of the label feed motor circuit is synchronized with the closing of the printing motor circuit.