JPH0356499Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of application of the invention) The invention uses a printer or the like to peel off a label with a desired print from a tape-like backing, temporarily place the label on a label holder, and then The present invention relates to a label receiving device in an air-type automatic label pasting machine that adsorbs a label with a suction cup of the automatic label pasting machine and then affixes it to an object conveyed by a conveyor.

(Prior art) Label receiving devices of this kind and similar models include a roller holding type label peeling device (Utility Model Publication No. 53-39197) whose tip has a conical cross-section, and a label peeling device whose opposing side plates are square-shaped in the front. A label sticking device using a side edge receiving method in the width direction (Japanese Patent Publication No. 53-24318) is known. However, these are designed to minimize the area that comes into contact with the adhesive surface on the back of the label, and although some measures have been taken to prevent the label from becoming sticky, such as applying or processing a non-adhesive material, etc. No active measures have been taken. In addition, since the holding means for the peeled label does not completely hold the center part or both sides, it is fine for holding small labels, but for large labels, the holding is unstable and the label is deformed. has.

Furthermore, the present invention relates to an improvement of the corrugated plate-shaped label holder device (Utility Application No. 59-137369), which is an earlier application of the present applicant. Although it has non-adhesive properties, it has some difficulty in guiding the label when it is peeled off.

(Purpose of the invention) The present invention was devised in view of the deficiencies of the above-mentioned known prior art and prior application, and has a structure that retains the peeled large label on its entire surface, without causing label deformation.
It is an object of the present invention to provide a label receiving device that has good label adsorption and smooth guidance when peeling off the label.

(Summary of the invention) In order to achieve the above object, the present invention has a belt conveyor configured to run in the label peeling direction, facing the peeling member that peels off the large label temporarily attached to the tape-like mount. It is arranged in two stages in the longitudinal direction, and is equipped with stable label adsorption and a stop sensor for stopping the running of the peelable label, so as to reliably detect the presence or absence of the label.

(Example) The label receiving device of the present invention is suitable as a receiving stand for large-sized labels, and will be described below with reference to the attached drawings.

In FIG. 1, the automatic label pasting machine main body 1 has its base 2 installed on a mounting plate 16, and is reciprocated in each direction of vertical direction Y, horizontal direction X, and 90 degree rotation Z by the action of compressed air. It has a configuration that allows rotational movement.

Specifically, the reciprocating motion in the vertical direction Y is caused by supplying and discharging air from the supply and discharge ports 4a and 4b of the air cylinder 4, which moves in conjunction with the operating rod 5 of the piston to move the body 3.
This is the vertical movement of This compressed air receives a signal from a sequence controller 32 at an air control box 33, and is transmitted from the box to a compressor 34 to the automatic label pasting machine 1.

Reciprocating motion in the lateral direction It is a lateral movement of

In the Z direction of rotation, the entire head 8 is rotated by 90 degrees about the rotating shaft 11 by air flowing from the supply/discharge ports 9a and 9b to the rotating air cylinder 9.

Next, the head block 10 held by this head 8 has an operating rod 12 connected to a piston with a buffer material 13 such as a spring interposed therebetween, and a suction body with a suction pad 15 is attached to the tip of the operation rod 12. 1
4 is installed.

Next, as shown in detail in FIG.
consists of a tape-like mount 20 and a large label 18 whose adhesive surface 19 is bonded to the mount, and is wound into a roll on a supply reel 21 shown in FIG. The tape-shaped mount 20 is turned onto the board 16 by a part of the peeling member 25 consisting of a peeling pin held on the mounting board 26, and then the tape-shaped mount 20 is transferred to the board 16 by a guide roller 27 and a transfer device including a feed roller 28 and a push roller 29. By pulling the mount 20, the large label 18 is
It peels off.

Thus, the present apparatus is a label holder 40 set facing the peeling member 25, and the details thereof will be explained with reference to FIGS. 2 to 4.

The label pedestal 40 is a pair of belt conveyors configured to stop its running based on an output signal from a reflective stop sensor 50 that detects the large label 18 peeled off from the tape-shaped mount 20 and fed out. 41a and 41b.

Specifically, the pair of belt conveyors 41 are set in a two-stage system in the longitudinal direction of the belt conveyors.
a and 41b are the feeding direction 5 of the large label 18
It is set up facing the 3rd. That is, the belt conveyor 41a is suspended between a driving roller 46 and an intermediate roller 47, which are arranged in the longitudinal direction and connected to a motor 52, and the belt conveyor 41b is suspended between an intermediate roller 47 and a driven roller 48. has been done. The pair of belt conveyors 41a and 41b are arranged alternately in the width direction. Therefore, a pair of belt conveyors 4
A gap 55 is formed in the width direction of 1a and 41b.

And these conveyor belts 41a and 41b
It has a so-called corrugated cross section with a large number of protrusions 42 formed in the longitudinal direction of the outer peripheral surface. Further, this wavy outer peripheral surface is coated with a non-adhesive substance 43 such as fluorine, Teflon, silicone resin, etc., so that it will not stick even if the adhesive surface 19 applied to the back surface of the large label 18 comes into contact with it. . Further, a reinforcing core yarn 44 is embedded in the longitudinal direction inside the belt conveyors 41a and 41b, and the inner peripheral surface thereof has a plurality of engagement grooves 45 formed in the width direction. The engagement groove 4
Reference numeral 5 denotes an engaging protrusion 46 provided on the outer peripheral surfaces of the drive roller 46, intermediate roller 47, and driven roller 48.
a, 47a, 48a, and the belt conveyor 4
This structure prevents slips of 1a and 41b.

Next, a stop sensor 50 is set at the bottom of the frame 49 of the label holder 40. Specifically, it is set at the end of the travel of the belt conveyor 41b (at the suction position of the suction body 14 of the automatic label pasting machine) and so as to face the gap 55 between the conveyor belts 41b.

This stop sensor 50 is connected to the sequence controller 32. A motor drive control circuit 51 to which a motor 52 is connected is connected to the sequence controller 32 . In this way, the motor 52, which includes a reduction gear, is driven to run the belt conveyors 41a and 41b via the drive roller 46, intermediate roller 47, and driven roller 48.

54 in Fig. 1 is the belt conveyor 41 of this device.
The mounting bases for the label holders 40 a and 41b are configured to be height adjustable.

Next, the operation of attaching a label to an object 35 in an automatic label attaching machine equipped with this device will be explained with reference to FIGS. 1 to 3 and FIG. 5 showing a flowchart. do.

First, the printer 23 performs desired printing on the large-sized label 18 according to a control signal from the sequence controller 32, and then the tape-shaped backing paper 2 is rotated by the feed roller 28 via a motor (not shown).
Due to the traction action of 0, this printed large label 1
8 is peeled off by the peeling member 25.

Next, as shown in FIG. 2, the tip of the peeled large label 18 is placed on the label holder 40 of the apparatus.
The tape is delivered onto the belt conveyor 41a with the adhesive surface 19 facing.

In this state, the system is operating (step S-
1) The motor 52 for driving the belt conveyors 41a and 41b is configured to be driven in synchronization with turning on the power switch or in synchronization with label issuance (step S).
-2) Therefore, the pair of belt conveyors 41a and 41b moves in the label feeding direction 53 via the drive roller 46, intermediate roller 47 and driven roller 48.
is traveling in the direction.

Therefore, the large-sized label 18 that has been fed out is completely peeled off while sliding with its leading end in contact with the running belt conveyor 41a, and the entire label is placed on the belt conveyor 41a and transported.

Next, this large label 18 is transferred to the belt conveyor 4.
1b and its tip is detected by the stop sensor 50 (step S-3), this signal is received by the sequence controller 32, and a motor stop signal is transmitted to the motor drive control circuit 51, so that the motor 52 stops (step S-4),
In synchronization with this, the belt conveyors 41a and 41b also stop. This stop position is indicated by the two-dot chain line in FIG. 2, and the state of the large label 18 shown in FIG.
That is, at the suction position of the automatic label pasting machine to the suction body 14, the automatic label pasting machine temporarily stops there and waits.

Next, it is placed on the conveyor 30 and transported.
For example, a sensor 31 detects an object 35, such as a cardboard box in which a product is packed, and sends its output signal to a sequence controller 32. Then, in response to this output signal, the sequence controller 32 sends a control signal to the air control box 33 to
A compressor 34 is operated from the box 33 and compresses the air cylinder 4 of the automatic label pasting machine main body 1.

Then, with the adsorbent 14 facing downward as shown in FIG. 3 (the adsorbent 14 in FIG. 1 is turned 90 degrees and facing sideways), the air cylinder 4 is operated, and the body 3 is moved to a predetermined position. descend. When it is lowered to this predetermined position, a limit switch (not shown) is activated, and suction of air is performed on the suction body 14, and the large label 18 waiting on the label holder 40 of the device is transferred to the suction pad 15. hand,
The non-adhesive side is adsorbed without receiving any adhesive resistance (step S-5).

At this time, the state of the stop sensor 50 is checked (step S-6), and if it is ON, it is determined that there is a suction error.
If not, then adsorption is confirmed to see if the label has been adsorbed to this adsorbent 14 (step S-
7). Specifically, if the sequence controller 32 is configured to monitor the state of label adsorption using the vacuum switch 36 set in the air control box 33, the sequence controller 32 can be configured to monitor the state of label adsorption using the vacuum switch 36 set in the air control box 33. The output signal of the controller 32 can reliably control the motor 52 to a stopped state. That is, this vacuum switch 36 is connected to the adsorbent 14 and detects the amount of air sucked,
If a system is added to the stop sensor 50 to check whether or not a label has been adsorbed to the suction cup 15, the stop sensor 5 can detect the label to be adsorbed.
0 and this vacuum switch 36, and the confirmation of the suction label becomes even more reliable.

Incidentally, if the label suction is incomplete in steps S-6 and S-7, it is detected as a suction error and is displayed with an alarm lamp or an alarm buzzer.

In this way, after the label is reliably adsorbed onto the adsorbent 14,
After confirming that the system cycle has ended (step S-8), the sequence controller 32 sends a drive signal to the motor 52 again, causing the pair of belt conveyors 41a and 41b to run again (step S-2).

In this way, the large label 18 adsorbed by the adsorbent 14 is again raised to a predetermined position by the operation of the air cylinder 4. Next, the suction body 14 is rotated 90 degrees by the operation of the rotary air cylinder 9, so that its suction surface faces the conveyor 30.

Next, by operating the air cylinder 6, the adsorbent 14 is moved forward in the set direction of the conveyor 30. That is, it moves in the lateral direction X. At this time, the object 35 placed on the conveyor 30 is moved in the lateral direction corresponding to the label holder 40 of the device, and the adsorbent 14
The large label 18 that has been carried by suction is pasted on its side surface.

Next, by transmitting an output signal confirming that the label has been attached to the object 35 to the sequence controller 32, the air adsorption action on the adsorption body 14 is stopped. Then this adsorbent 14
is moved back to its original position by the action of the air cylinder 6, and rotated 90 degrees by the action of the rotating air cylinder 9, returning to its original state. In addition, the contact impact when the adsorbent 14 attaches the label to the object 35 is caused by the shock absorbing material 13.
It is also adsorbed by an air buffer (not shown) or the like.

(Effects) (1) This invention is a large label that has been peeled off as described above.
The two-stage belt conveyors 41a and 41b are suspended alternately in the width direction from a driving roller 46, an intermediate roller 47, and a driven roller 48 in the longitudinal direction, which is the feeding direction of the large-sized labels. The adsorption to the adsorbent body 14 is good.

In other words, the belt conveyor is generally set as one endless belt in its longitudinal direction, but since it bends at its longitudinal center, in the present invention, an intermediate roller 47 is provided at its center.
It is set up as a two-stage belt conveyor in the longitudinal direction.

Additionally, conveyors coated with a non-stick material such as silicone absorb moisture and sag in the longitudinal center of the conveyor. However, since the conveyor of the present invention is set as a two-stage system, the amount of deflection can be suppressed to a small level.

Therefore, the label placed on this belt conveyor is prevented from curling, and the adsorption effect of the adsorbent is good.

(2) Also, since the label stop sensor 50 is set facing the gap 55 formed in the width direction of the conveyor belts 41a and 41b, there is no large label running between the conveyors in the width direction. can be reliably detected.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of the entire automatic label pasting machine equipped with the label receiving device of the present invention, FIG. 2 is a perspective view of the label receiving device in the conveyor belt type automatic label pasting machine of the present invention, and FIG. The figure is a schematic side view of the same, FIG. 4 is an enlarged sectional view of the belt conveyor and large label, and FIG. 5 is a flowchart of the belt conveyor, stop sensor, and label suction confirmation portion. In the figure, 1... automatic label pasting machine main body, 14...
Adsorbent, 18...Large label, 19...Adhesive surface,
20... Tape-shaped mount, 25... Peeling member, 35
...Object, 40...Label holder, 41a, 41
b...Belt conveyor, 42...Protrusion, 43...
Non-adhesive substance, 46... Drive roller, 47... Intermediate roller, 48... Followed roller, 50... Stop sensor, 51... Motor drive control device, 52... Motor, 53... Label feeding direction, 55... ...Gap between conveyor belts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A large label temporarily attached to a tape-like mount is peeled off with a peeling member, and this large label is placed on a label belt conveyor that is a label holder and is driven by the rotation of a motor. In a label receiving device of an automatic label applicator that temporarily holds the label belt, then adsorbs it with an air adsorbent disposed oppositely on the belt conveyor and attaches it to the object conveyed by the article conveyor. The conveyor faces the peeling member and is configured to be continuous in the label peeling direction, and has a drive roller, an intermediate roller, and a driven roller arranged in the longitudinal direction. The belt conveyor has a pair of two-stage structure, one suspended between the rollers and the other suspended between the intermediate roller and the driven roller, and each belt conveyor is divided in the width direction, and the conveyors are alternately suspended at the intermediate rollers. A label receiving device in an automatic label pasting machine that is suspended and forms a gap in the width direction. (2) The label according to claim 1 of the utility model registration claim, wherein a stop sensor for stopping the motor when the large label is detected is placed in a gap formed in the width direction of the label belt conveyor. Label receiving device in automatic pasting machine.