JPS6346342Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement of an applicator roll of an apparatus for continuously attaching labels to the body surface of a cylindrical object such as a bottle containing a drug.

[Conventional technology]

BACKGROUND ART Conventionally, as a device for pasting a label on the outer periphery of a bottle made of materials such as glass or plastic, the following device has been generally used. In other words, a roll label made of art paper material printed on one side is fed at a constant speed, and the roll label is cut to a certain size.
The labels are successively adsorbed onto the surface of a conveyor roll by vacuum suction so that the back side of the label becomes the back side. During this transportation, the manufacturing date and lot number of the stored items such as drugs are stamped on the surface of the label and inspected. Next, this label is delivered to a pasting roll that rotates in the opposite direction to the transport roll so that the back side of the label appears on the front surface, and the label is attracted by the vacuum suction effect of the pasting roll. During the conveyance process of this pasting roll, cold gray glue is applied to the back of the label, and the label is pasted onto the body of the bottle that is being conveyed by a route different from the conveyance route, and the vacuum suction is turned off. None, the label was affixed to the barrel of the bottle. Such conventional technology has the following problems.

(a) In order to apply glue to the label, it is impossible to implement unmanned operation because it requires manpower to manage the glue, that is, replace the glue container when the glue is consumed, and replenish the glue.

(b) Since the glue adheres to the surface of the application roll, the bottle transport mechanism, etc., it is necessary to remove and clean the adhered glue during and after the operation.

(c) Uneven application of glue to the label, especially to the corners of the label, which makes it difficult to apply the glue and makes it easy to peel off from the bottle.

In order to solve these problems, we have developed the use of so-called heat-sensitive labels, in which an adhesive that is activated by heat is applied to the back of the label in advance, which solves the problems of the conventional technology. A device has been proposed to eliminate this problem. Cut the roll label to a certain size, transport it to a roll,
Although the means of conveying the label to the bottle using the pasting roll is the same as in the past, this technique has the following problems.

(a) There is a way to heat-activate the adhesive using hot air, but in order to heat-activate the adhesive, 150 ~
It requires hot air at 400°C, and it is technically difficult to apply this heated air to the adhesive surface of the label.In particular, the hot air affects other mechanical parts, making it extremely difficult to handle.

(b) As an electric heater type, a method of embedding an electric heating element in the rotating part of the application roll has been put into practical use, but there are problems with the power supply brush and electrical insulation means for supplying current to this electric heating element. Yes, especially
Abrasion loss of the power supply brush structure is large, and the structure becomes complicated.

(c) Changing the pasting roll due to changes in label height is complicated.

(d) It is necessary to confirm and check the temperature control of the electric heating element, and regular patrols by the person in charge of work are required.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and aims to solve the problems of the conventional technology by simple yet rational means, and to make the automatic continuous label pasting work unmanned. It is an object of the present invention to provide a device having a pasting roll with a simple structure, which allows temperature control and wear of component parts to be reduced.

[Means for solving problems]

In order to solve the problems of the prior art, the pasting roll of the apparatus for continuously pasting labels on cylindrical objects of the present invention has a mechanism that pulls out the roll label wound on the bobbin at a constant speed, and a mechanism that pulls out the roll label wound on the bobbin at a constant speed. A mechanism that cuts the labels to size, a conveyor roll that vacuum-sucks the cut labels so that the adhesive side is on the back side, and a conveyor roll that rotates in the opposite direction to the conveyor roll so that the adhesive side of the label is on the front side. A pasting roll that takes the label from the above-mentioned transport roll and vacuum-adsorbs it, as well as heat-activating the adhesive, is installed in order, and the label, whose adhesive has been activated by the heating action of the pasting roll, is transported by a separate route. In an automatic continuous label pasting device that transfers labels onto the barrel surface of a cylindrical object, the pasting roll is
A roll made of induction heating material with multiple vacuum suction structures and a roll that is inserted into this roll without contact,
Further, the device is characterized in that it is constructed by an induction coil block portion having an induction coil inside.

〔Example〕

1 to 9 show embodiments of the present invention, and the apparatus of the present invention will be explained below based on these drawings.

Reference numeral 1 denotes a roll label wound around a bobbin 2, and this roll label 1 is drawn out at a constant speed by the rotation of a drawing roll 3. In the figure, 4 is a guide roll, and 5 is a label printing surface and a registration mark detector. Reference numeral 6 denotes a cutter that cuts the roll label 1 piece by piece, and the labels cut at predetermined positions and separated are vacuum-adsorbed onto the circumferential surface of the transport roll A, which will be explained next, so that the adhesive side is the back side. be done. This conveyance roll A is the seventh
It is configured as shown in Figure 9. That is, FIG. 7 shows the roll 7 of the conveyance roll A, in which hollow parts 8 are formed at regular intervals, and a plurality of multistage and plural suction holes are connected to each hollow part 8. A through hole 9 is opened in the circumferential surface of the roll 7, and a through hole 10 is formed in the lower surface of the leading side cavity 8 of the roll 7 in the rotational direction shown by the arrow.
will be established. In the figure, 11 is a shaft hole provided at the center of the roll 7.

FIG. 8 shows the roll 7 constituting the transport roll A.
This shows a disk 12 that supports approximately half the circumference of the upper surface of this disk 12, that is, as is clear from FIG.
An arcuate groove 13 is provided between about 12 o'clock and about 8 o'clock on the clock, and one side of this groove 13 is connected to a vacuum suction machine (vacuum pump), not shown, through a pipe 14. In the figure, 15 is a shaft hole, and 16 is a stand. Then, as shown in FIG. 9, the disk 12 is placed and fixed on the machine stand 17, the roll 7 is placed on top of this, and the rotating shaft 18 is inserted into the shaft holes 11 and 15 of both of them, so that the conveying roll A is configured. Further, a through hole 10 provided on the lower surface of the rotation leading side of the cavity 8
is communicated with a groove 13 provided in the disc 12.

Next, to explain the action of the transport roll A with reference to FIG. 1 and FIGS. The label 19 is vacuum-suctioned by the suction holes 9 provided evenly on the roll 7, and the label 19 is conveyed in the direction of the arrow in FIG. 7 while being attracted to the outer periphery of the roll 7 with its back side facing down. During transportation, the label surface is stamped with, for example, the manufacturing date and lot number of the drug by the stamping mechanism 20.
This stamp is stamped by this stamping mechanism 2.
Stamp check sensor 2 located on the lower side of 0
1 is checked. If there is no stamp, this check signal is sent to a defective determination device (not shown), and the bottle with the defective label affixed thereto is collected on a defective product receiving turntable, which will be described later.

To explain the effect of adhering the cut label 19 to the circumferential surface of the roll 7, the through holes 10 are formed at the lower surface of the leading end of the hollow portion 8, which is equally divided.
The cavity 8,
As a result, outside air is sucked through the suction holes 9, and the label 19 is attracted to the outer periphery of the roll 7 and conveyed by this suction action. When the through hole 10 formed in communication with the cavity 8 passes the end b of the groove 13 of the disk 12, the vacuum suction in the cavity 8 connected to the through hole 10 is cut off. , the vacuum suction effect will not work on the label 19. In other words, label 19 is roll 7
It is easy to separate from the surface.

Next, a description will be given of the structure of the pasting roll B which receives the label 19 which is on the circumferential surface of the roll 7 and which has become easy to separate as described above. This pasting roll B is constructed as shown in FIGS. 2 to 6. Reference numeral 22 denotes an induction coil block portion having a thick cylinder structure, and an induction coil 23 is embedded in the induction coil block portion 22. Horizontal mounting pieces 25 having vertical guide holes 24 at their ends are integrally formed on the left and right sides of the induction coil block portion 22. Reference numeral 26 denotes a guide rod vertically installed on the machine base 17 at a symmetrical position with the induction coil block section 22 as a boundary.
5 is a mounting piece 25 of the induction coil block part 22.
The induction coil block portion 22 is inserted into a guide hole 24 provided in the guide rod 26 so that the induction coil block portion 22 can move up and down by the guide rod 26, and by a stopper 27 provided in the middle of each guide rod 26,
The induction coil block portion 22 is fixed at a predetermined position. This guide rod 26
Raise the induction coil block part 22 along the
The roll 7 is exchanged as the height of the label 19 changes.

Reference numeral 28 denotes a roll made of a material such as iron, which has a recess 29 into which the induction coil 23 embedded in the induction coil block 22 fits, and which generates heat by the action of the induction coil 23. As is clear from FIGS. 2, 4, and 5, a plurality of cavities 30 are formed at equal intervals on the outer periphery, and a plurality of multi-stage and plural suction chambers are connected to each cavity 30. A hole 31 is opened in the circumferential surface of the roll 28, and a through hole 32 is provided in the lower surface of the leading side cavity 30 of the roll 28 in the rotational direction indicated by the arrow. 3 in the diagram
3 is a shaft hole provided in the roll 28, and 34 is a ventilation hole provided in the roll bottom 35 facing the recess 29. In the recess 29 of this roll 28, a third
As shown in the figure, a part of the induction coil block part 22 is inserted, but as is clear from the figure, there is a slight gap between the two so that a non-contact state is maintained. , the diameters of the induction coil block portion 22, the recess 29, and the mounting position of the stopper 27 are regulated. In the figure, 36 is a temperature sensor.

To explain the donut-shaped disk 37 constituting the pasting roll B with respect to FIGS. 1, 2, and 6, the first and second
As is clear from the figure, about half the top surface of the disk 37,
That is, an arcuate groove 38 is provided between about 6 o'clock and about 12 o'clock on the clock, and one side of this groove 38 is connected to a vacuum pump (not shown) through a pipe 39. 40 is a stand. Then, this disk 37 is placed and fixed on the machine base 17, and
The roll 28 is placed on top of this, and its shaft hole 33
The pasting roll B is constructed by inserting and locking the rotary shaft 41 into the roll. In addition, the through hole 32 provided on the lower surface of the rotation leading side of each cavity 30 is connected to the disk 3.
It communicates with a groove 38 provided in 7. Reference numeral 42 in FIG. 3 is a fan for blowing indoor air in the direction of the arrow, and this fan 42 prevents the rotating shaft 41, disk 37, etc. from being heated unnecessarily.

Next, to explain the action of the pasting roll B with reference to FIG. 1 and FIGS. At the same time, the vacuum suction action on the label 19 is cut off by the through hole 32 passing counterclockwise through the end point b, and at the same time, the through hole 32 of the cavity 30 formed in the roll 28 is
The label 19 communicates with the starting point c of the concave groove 38 starting from the time, the vacuum suction action of the cavity 30 is started, and the label 19 is in a state where it is easy to separate on the conveyance roll A.
are successively adsorbed onto the circumferential surface of the pasting roll B starting from the leading end so that the printed surface is the back surface, that is, the adhesive surface is the front surface. Since the adhesive of the label 19 is activated by heating, the adhesive of the label is activated by the heat of the roll 28 heated by the action of the induction coil 23, and the label 19 moves in the direction of the arrow. , transported clockwise. Then, when the through hole 32 provided on the lower surface of the leading side of the cavity 30 passes through the end point d of the groove 38,
The vacuum suction action of the cavity 30 is cut off, and the label 19 becomes easy to separate from its leading side, and at this point, the leading end of the label 19 is attached to the outer circumferential surface of the bottle 43 that is being conveyed while rotating on a different route. It is affixed to

Next, referring to FIG. 1, the conveyance system for the bottles 43 will be described. C is a conveyor line that is different from the conveyance line of the label 19, that is, conveys the bottles 43 from the left side to the right side of the page. An arc-shaped guide 4 that is replaceable depending on the diameter, has a sponge plate (not shown) attached to the inner surface, and forcibly rotates the bottle by the conveying force of the conveyor and the frictional force of the sponge plate.
6, pressure contact conveyors 47 and 48 that press against the bottles, a label check zone 49, a defective product receiving turntable 50 that collects defective products, and a non-defective product collection conveyor 51.

〔effect〕

As described above, according to the present invention, the following effects can be obtained.

(a) Since the roll made of the induction heating material that constitutes the pasting roll is heated by the induction heating action of the induction coil built into the induction coil block,
Compared to the conventional method using a power supply brush, there are almost no wear parts and there is no need for complicated electrical insulation means.

(b) Since the induction coil block part and the roll are in a non-contact state, there is no wear and tear on the members due to sliding and no generation of noise.

(c) Temperature control is easy and the equipment can be unmanned.

(d) As shown in the embodiment section, by making the induction coil block part removable above the roll, it is easy to replace the roll in response to changes in the height of the label.

[Brief explanation of the drawing]

Figure 1 is a plan view schematically showing a continuous label pasting device using the pasting roll of the present invention, Figure 2 is an exploded perspective view with a part of the pasting roll of the present invention cut away, and Figure 3 is a part of the pasting roll. FIG. 4 is a longitudinal sectional front view of the rotor part constituting the pasting roll, FIG. 5 is a partially cutaway plan view of the same as above, FIG. FIG. 8 is a partially cutaway perspective view of a disk forming the transport roll, and FIG. 9 is a longitudinal sectional front view of the transport roll. 1...Roll label, 2...Bobbin, 6...
Cutter, A... Conveyance roll, B... Pasting roll, 22... Induction coil block section, 23... Induction coil, 24... Guide hole, 25... Mounting piece, 2
6...Guide rod, 27...Stopper, 28...
...Roll, 29...Recess, 30...Cavity, 31
... Suction hole, 32 ... Through hole, 33 ... Shaft hole, 34
... Ventilation hole, 35 ... Roll bottom, 36 ... Temperature sensor, 40 ... Stand, 41 ... Rotating shaft,
42... Juan, 43... Bottle, C... Conveyor line.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) (a) A mechanism for pulling out the roll label wound on a bobbin at a constant speed, a mechanism for cutting the roll label into a constant size, A conveyor roll that vacuum-sucks the label so that its side is the back side, and a conveyor roll that rotates in the opposite direction to the conveyor roll, picks up the label from the conveyor roll so that the adhesive side of the label is the front side, vacuum-sucks it, and removes the adhesive. An automatic label continuous system in which heat-activated pasting rolls are arranged one after the other, and the label, whose adhesive has been activated by the heating action of the pasting roll, is transferred onto the barrel surface of a cylindrical object that is transported via a separate route. In the pasting device, (b) the pasting roll is replaced by a roll made of induction heating material having a plurality of vacuum suction structures, and an induction coil block inserted into the roll in a non-contact state and having an induction coil inside. A pasting roll of a device for continuously pasting a label on a cylindrical object, characterized in that the pasting roll is comprised of two parts. (2) A pasting roll for an apparatus for continuously pasting labels on a cylindrical object as set forth in claim 1, which is a utility model registration claim having an induction coil block part that can be avoided upwardly relative to the roll of the pasting roll.