JPH0872839A - Automatic replenishing device of roll label of labeling machine - Google Patents

Abstract

PURPOSE: To replenish roll labels perfectly automatically for a long period, by transferring one of cassettes contained in a cassette shelf to a labeling machine and controlling to automatically feed the front end of tape to a cutting means. CONSTITUTION: When a tape 12a of a roll label 12 is replenished to a labeling machine 11, at first, a transfer means 19 of cassettes is actuated and one of a plurality of roll cassettes 17 contained in a cassette shelf 18 is transferred to a specified position near the labeling machine 11 and the slack of tape 12a is removed by a preventive means against slack. Then a feeding means 21 and a feeding roller 13 are rotated clockwise on the basis of the detected output of a replenishment sensor 36 for labels and the front end of tape 12a is fed to the cutting means 14. When a last label-sensor 37 detects the last one of the roll label 12, the feeding roller 13 and the feeding means 21 are reversed and the rest tape is wound up on the shaft 17a and after that, the roll cassette 17 is returned to the original position and exchanged to another cassette.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll label labeling machine in which a tape, which is a continuous label, is wound into a roll. More specifically, it relates to a device for automatically supplying a plurality of roll labels.

[0002]

2. Description of the Related Art Conventionally, as a labeling machine of this type, the present applicant has proposed that a feeding roller pulls out a tape from a roll label, which is a continuous label tape wound in a roll shape, and a means for cutting the pulled tape is predetermined. Roll label supply configured so that the label is cut into individual labels of the same length, and the individual labels are sucked one by one under negative pressure. The drum applies glue to the individual labels and then attaches the individual labels to the container. Filed a patent for a labeling machine (Japanese Patent Application Laid-Open No. 60)
-45130).

In this labeling machine, the tape end holding means holds the end of the drawn tape between a plurality of roll stands and tension rolls, and detects the end of the drawn tape. Based on the detection output of the tape, the tape end stopping means grips the tape to temporarily stop the end of the tape, and the tape joining means connects the end of the tape of one roll label and the start of the tape of the other roll label to the tape. It is configured to join during termination. Further, the tension roll is temporarily displaced while the end of the tape is stopped to supply the tape to the cutting means.

In the labeling machine constructed as described above, a single drawing, cutting and suctioning device configuration enables substantially completely automatic operation from the beginning to the end of the roll label, and the manufacturing cost is low. , Manpower required for operation is small.

[0005]

However, in the above-mentioned conventional labeling machine for supplying roll labels, it is necessary to dispose a plurality of roll stands around the tape joining device on substantially the same horizontal plane, and the number of installed roll stands. There was a limit. As a result, when there is no roll label on the roll base, the operator has to set the roll label on the roll base, and there is a problem that the roll label cannot be replenished completely automatically for a long time.

The object of the present invention is to automatically replenish the leading end of the tape to the cutting means, and when the roll label of the roll cassette is running low, the remaining tape can be automatically wound around the shaft, which is completely automatic for a long time. An object of the present invention is to provide an automatic roll label replenishing device for a labeling machine capable of replenishing roll labels.

[0007]

A configuration of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to an embodiment. The present invention is directed to a feed roller 13 for drawing the tape 12a from a roll label 12 in which a tape 12a which is a label continuum is wound in a roll shape, and a cutting means 14 for cutting the drawn tape 12a into a single label having a predetermined length. And drums 43 and 44 for sucking the cut single labels one by one with negative pressure and applying glue to the sucked single labels, and then applying the glue-applied labels to the adherend 15 It is an improvement of the machine 11. The characteristic structure is that the labeling machine 11 facing the feed roller 13
A roll cassette 1 which is provided at a predetermined position in the vicinity and rotatably holds a roll label 12 via a shaft 17a.
7, feeding means 21 for feeding the tip of the tape 12a to the cutting means 14 via the feeding roller 13, and the shaft 17a.
The slack preventing means 22 which is capable of preventing the slack of the tape 12a and can wind the tape 12a, the label replenishment sensor 36 which detects the position of the tip of the tape 12a delivered by the delivering means 21, and the shaft 17a. A label end sensor 37 for detecting an end detected portion provided in front of the tape end end of the rolled roll label 12;
It is provided with a controller for controlling the feeding roller 13, the feeding means 21, and the slack prevention means 22 based on the detection outputs of the label supply sensor 36 and the label end sensor 37.

Further, a plurality of roll cassettes 17 for rotatably holding the roll label 12 are prepared, and a cassette shelf 18 for accommodating the plurality of roll cassettes 17 in an aligned state.
And a cassette carrying means capable of carrying any one of the plurality of roll cassettes 17 accommodated in the cassette shelf 18 to a predetermined position near the labeling machine 11 or from the predetermined position to the original position of the cassette shelf 18. It is preferable that the controller controls the cassette conveying means 19 based on the respective detection outputs of the label supply sensor 36 and the label end sensor 37.

[0009]

When the tape 12a of the roll label 12 is supplied to the labeling machine 11, the controller first activates the cassette carrying means 19 so that one of the roll cassettes 17 accommodated in the cassette shelf 18 is labeled by the labeling machine 1.
The tape 12a is conveyed to a predetermined position near 1 and the slack prevention means 22 is operated to eliminate the slack of the tape 12a. Next, the controller causes the feeding means 21 and the feeding roller 13 to rotate normally based on the detection output of the label replenishment sensor 36, and the tape 12
The tip of a is sent to the cutting means 14 via the feed roller 13.

The label end sensor 37 is used for the roll label 12
When the end detected portion of the roll cassette 17 is detected, the controller reverses the feed roller 13 and the feed means 21 based on the detection output of the sensor 37, and the shaft 1 of the roll cassette 17 is rotated.
Tape 12 remaining between 7a and cutting means 14
After winding a on the shaft 17a, the cassette carrying means 1
9 is operated to return the roll cassette 17 at the predetermined position to the original position of the cassette shelf 18, and another roll cassette 17 having the roll label 12 is conveyed from the cassette shelf 18 to the predetermined position.

[0011]

An embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 5, the labeling machine 11 pulls out and cuts a roll label 12 in which a tape 12a, which is a label continuum, is wound in a roll shape, and applies glue to the cut label simple substance to form a container 15 It is a device to be attached to. Two roll label automatic replenishing devices 16 for automatically and alternately replenishing the roll label 12 to the labeling machine 11 around the machine base 11a of the labeling machine 11,
20 are provided (FIG. 5). A vacuum drum 43, which will be described later, of the labeling machine 11 and two automatic replenishing devices 1
The automatic replenishing device 1 is provided on the machine base 11a between the machine 6 and 20.
6, 20 roll labels 12, 12 to tape 12a,
The feed rollers 13 and 13 for pulling out the tape 12a and the cutting means 14 and 14 for cutting the drawn tapes 12a and 12a into a single label having a predetermined length are attached (FIG. 1).
And FIG. 5). The feed roller 13 has a drive roller 13a and an idle roller 13b pressed against the drive roller 13a. Further, the cutting means 14 is provided with a fixed cutter 14a and a rotary cutter 14b which is provided so as to face the cutter 14a and rotates so that the blade edge can come into contact with the blade edge of the cutter 14a every rotation.
Have and. Two roll label automatic supply devices 16,2
Since 0 has the same structure, one automatic replenishing device 16 will be described, and the description of the other automatic replenishing device 20 will be omitted.

The automatic roll label replenishing device 16 has a plurality of roll cassettes 17 that rotatably hold a plurality of roll labels 12 via shafts 17a (FIGS. 1 to 3) and the roll cassettes 17 are aligned. 1 and 2 of the cassette shelf 18 accommodated in the cassette shelf 18 and one of the plurality of roll cassettes 17 accommodated in the cassette shelf 18 at a predetermined position near the labeling machine 11 facing the feed roller 13. Alternatively, a cassette carrying means 19 (FIGS. 1 and 2) capable of carrying from a predetermined position to the original position of the cassette shelf 18 and the tip of the tape 12a of the roll cassette 17 at the predetermined position via the feed roller 13. The feeding means 21 (FIGS. 1 to 3) for feeding to the cutting means 14 is provided on the shaft 17a and capable of preventing the slack of the tape 12a and terminating the tape. Comprising 12a and windable and slack preventing means 22 (FIG. 3).

The plurality of roll labels 12 and the plurality of roll cassettes 17 are 9 rolls and 9 rolls in this example (FIG. 2). The roll label 12 is fitted into a portion of the shaft 17a protruding upward from the roll cassette 17,
The lower end of the shaft 17a is connected to the slack prevention means 22 built in the box 17b on the lower surface of the roll cassette 17 (FIG. 3). The slack prevention unit 22 is a torque motor in this example, and urges the roll label 12 fitted on the shaft 17a to rotate in the winding direction. Two pins 17c are projectingly provided on both side surfaces of the roll cassette 17, and each of the pins 17c has a shaft portion 17d and a large diameter portion 17e provided at the tip of the shaft portion 17d (FIGS. 1 to 1). 3).

The cassette shelf 18 is a frame 18 in this example.
It is formed in 3 rows and 3 stages by a, is configured to be able to accommodate a maximum of 9 roll cassettes 17, and is provided adjacent to the labeling machine 11 (FIGS. 1 and 2). Frame 18a
A plurality of concave portions 18b are formed in the concave portion 18b.
The large diameter portion 17e of the pin 17c of the roll cassette 17 can be loosely inserted therein. Although not shown, a first cassette confirmation sensor is provided in the recess 18b, and this sensor detects whether or not the large diameter portion 17e of the pin 17c is loosely inserted in the recess 18b. Nine label confirmation sensors 24 are provided on the frame 18a toward the outer peripheral surface of the roll label 12 of the roll cassette 17 housed in the shelf, and the label confirmation sensor 24 detects the presence or absence of the roll label 12 of each roll cassette 17. To be done.

The cassette carrying means 19 includes a base frame 26 which surrounds the cassette shelf 18 on three sides, and a front and rear sliding frame 27 which is slidably attached to the base frame 26 in a direction toward and away from the shelf 18. A vertical sliding frame 28 that is slidably attached to the front and rear sliding frame 27 in the vertical direction, and a shelf 18 on the vertical sliding frame 28.
Is mounted so as to be slidable in the longitudinal direction of the roll cassette 17
And a cassette holder 29 capable of holding (FIGS. 1 and 2). As shown in detail in FIG. 4, a concave groove 26 extending in the longitudinal direction is formed on the upper surface of the horizontal piece 26a of the base frame 26.
The block 27b is formed with b and is fixed to the lower surface of the horizontal piece 27a of the front and rear sliding frame 27, and the ridge 27c slidably fitted in the groove 26b is formed. A first ball screw shaft 26c is rotatably attached to the upper surface of a horizontal piece 26a of the base frame 26, and a first ball screw screw hole 27 into which the shaft 26c can be loosely inserted is attached to a block 27b.
d is formed. A steel ball 27e is rotatably inserted in the screw hole 27d in which the shaft 26c is loosely inserted (Fig. 4), and the shaft 26c
Is rotated by being driven by the first stepping motor 26d so that the front-rear sliding frame 27 moves along the horizontal piece 26a (FIG. 2).

As shown in detail in FIG. 2, the vertical sliding frame 28 is slidably fitted to a vertical piece 27f of the front-back sliding frame 27 via a block 28a, and the vertical piece 27f is loosely inserted in the block 28a. Second ball screw shaft 27
g is rotatably mounted. The shaft 27g is driven by the second stepping motor 27h to rotate, whereby the vertical sliding frame 28 moves along the vertical piece 27f. Further, the cassette holder 29 is slidably fitted to the vertical sliding frame 28 via a block 29a, and the vertical sliding frame 28 has a block 29a.
A third ball-screw shaft 28b loosely inserted into is rotatably attached. This shaft 28b is the third stepping motor 2
By being driven and rotated by 8c, the cassette holder 29 moves along the vertical sliding frame 28. A pair of arms 29 of the cassette holder 29
Two recesses 29c into which the shaft portions 17d of the pins 17c of the roll cassette 17 can be inserted are formed in b and 29b (FIG. 1). Reference numeral 32 is a second cassette confirmation sensor for detecting that the roll cassette 17 is at the predetermined position (FIGS. 1 and 2).

The delivery means 21 is provided on the first delivery roller 41 provided on the roll cassette 17 (FIGS. 1 to 3) and on the machine base 11a between the roller 41 and the delivery roller 13. It has a second delivery roller 42 and (FIG. 1).
The first delivery roller 41 is driven by a first roller motor 41a and rotates with a first fixed roller 41b (see FIGS.
3), a first movable roller 41c which can be pressed against or released from the first fixed roller 41b by a first solenoid (not shown).
And (FIGS. 1 and 2). The second delivery roller 4
Reference numeral 2 denotes a second fixed roller 42a that is driven and rotated by a second roller motor (not shown), and a second fixed roller 42a.
It is composed of a second movable roller 42c which can be pressed against or separated from a by a second solenoid 42b (FIG. 1). The first solenoid and the second solenoid 42b are spring return type electromagnetic solenoids, and when these solenoids 42b are operated, the movable rollers 41c, 42c are moved to the fixed roller 41.
When the movable rollers 41c and 4a are separated from the movable rollers 41c and 42a and are made inoperative, the movable rollers 41c and 4c
2c is pressed against the fixed rollers 41b and 42a, respectively. Reference numerals 33 and 34 are guide rails for guiding the lower edge of the tape 12a pulled out from the roll label 12 (FIGS. 1 and 3).

The tape 1 delivered by the delivery means 21
The label replenishment sensor 36 for detecting the position of the leading edge of the 2a has a first label leading edge sensor 36a and a second label leading edge sensor 36b provided between the second feeding roller 42 and the feeding roller 13 (FIG. 1). These sensors 36a, 36
Roll label 12 wound around shaft 17a between b
A label end sensor 37 for detecting the end detection target portion (not shown) is provided. End detected part is roll label 12
Label end sensor 37 attached before the end of the tape
Is a silver paper or a mark that can be detected by. Further, 38 is a mark sensor for detecting a mark (not shown) described for each label of the tape 12a pulled out from the roll label 12, and this sensor 38 allows the feed roller 13
Also, the rotation speed of the rotary cutter 14b is finely adjusted.

The roll cassette 17 includes a torque motor 2
2, a power supply terminal (not shown) for the first roller motor 41a and the first solenoid, and a signal terminal (not shown) for the label confirmation sensor 24 are provided.
Is provided with an output terminal and an input terminal (not shown) that can be electrically connected to the terminals. Cassette holder 2
Output terminal and input terminal of 9 are controllers (not shown)
Are connected to the control output and the control input, respectively. The power supply terminal and the signal terminal of the roll cassette 17 are automatically connected to the output terminal and the input terminal of the cassette holder 29 when the cassette holder 29 holds the roll cassette 17, respectively.

The respective detection outputs of the first cassette confirmation sensor, the second cassette confirmation sensor 32, the first label tip sensor 36a, the second label tip sensor 36b, the label end sensor 37 and the mark sensor 38 are output from a controller (not shown). Connected to the control input, the control output of the controller is stepping motors 26d, 27h, 28c, a second roller motor, a second solenoid 42b, a drive motor (not shown) for the feed roller 13 and a drive motor for the rotary cutter 14b (see FIG. Connected (not shown).

Numeral 43 is a vacuum drum for sucking the label unit cut by the cutting means 14 by negative pressure, and numeral 44 is a sticking drum pressed against the vacuum drum 43. A glue rubber roller 46 for applying glue to the label single body sucked by the drum 44 is pressed against the sticking drum 44. Reference numeral 47 is a conveyor that conveys the container 15 (FIGS. 1 and 5).

The operation of the automatic roll label replenishing device of the labeling machine thus constructed will be described with reference to FIGS. When the power is turned on while the nine roll cassettes 17 are accommodated in the cassette shelf 18 of the one roll label automatic replenishing device 16 and the tip of the tape 12a of each roll cassette 17 is held by the first feeding roller 41. First, a controller (not shown) actuates the cassette carrying means 19 to carry one of the roll cassettes 17 accommodated in the cassette shelf 18 to a predetermined position near the labeling machine 11 and to operate the second solenoid 42b. The second movable roller 42c away from the second fixed roller 42a. In this state, the shaft 17a is rotated in the direction in which the tape 12a is wound by the torque motor 22 to move the tape 12a.
When the slack is eliminated and the first fixed roller 41b is rotated in the normal direction, the tip of the tape 12a is fed toward the feed roller 13 through between the second fixed roller 42a and the second movable roller 42c.

The first label tip sensor 36a is the tape 12
When the tip of a is detected, the controller detects this sensor 36
The first fixed roller 41b is stopped based on the detection output of "a", the second solenoid 42b is deactivated, and the second movable roller 42c is pressed against the second fixed roller 42a while sandwiching the tape 12a. A solenoid (not shown) is operated to move the first movable roller 41c to the first fixed roller 41b.
Disengage from. In this state, the controller rotates the second fixed roller 42a in the forward direction and feeds the tip of the tape 12a toward the feed roller 13. When the second label tip sensor 36b detects the tip of the tape 12a, the controller detects the second
After temporarily stopping the fixed roller 42a, the second fixed roller 42a and the feed roller 13 are simultaneously rotated forward by a predetermined rotation angle. As a result, the tip of the tape 12a comes into contact with the fixed cutter 14a of the cutting means 14. Next, the controller operates the second solenoid 42b to activate the second movable roller 4
2c is separated from the second fixed roller 42a. Similarly to the above, the leading end of the tape 12a is sent to the cutting means 14 from the other roll label automatic supply device 20 (FIG. 5).

The feed roller 13 and the cutting means 14 on one roll label automatic replenishing device 16 side, and the drums 43, 44
The cut labels are affixed to the container 15 by synchronously operating. During this time, the feed roller 13 and the cutting means 14 on the other side of the automatic roll label supply device 20 are stopped. When the roll label 12 of the roll cassette 17 at a predetermined position of one of the automatic replenishing devices 16 is pulled out one after another by the feed roller 13, a label end sensor 37 is provided in front of the end end of the roll label 12. An end detected portion (not shown) is detected. The controller stops the feed roller 13, the cutting means 14 and the drums 43 and 44 based on the detection output of the sensor 37, and at the same time, causes the feed roller 13 and the cutting means 14 on the other automatic replenishing device 20 side to move to the drums 43 and 44. By performing the synchronous operation, the cut label alone is attached to the container 15. As a result, it is not necessary to stop the labeling machine 11.

On the other hand, the controller deactivates the first solenoid and the second solenoid 42b of the automatic replenishing device 16, and the first movable roller c and the second movable roller 42c sandwiching the tape 12a, respectively, the first fixed roller 41b.
And the second fixed roller 41a in pressure contact with the feed roller 13,
By reversing the first fixed roller 41b and the second fixed roller 42a, the shaft 17 of the roll cassette 17 is rotated.
Tape 12a remaining between a and cutting means 14
Is wound on the shaft 17a. At this time, the shaft 17a is rotated by the torque motor 22 in the winding direction of the tape 12a. After a lapse of a predetermined time after the first label tip sensor 36a no longer detects the tape 12a, the cassette carrying means 19 is operated to return the roll cassette 17 at the predetermined position to the original position of the cassette shelf 18. Further, the controller conveys another roll cassette 17 having the roll label 12 from the cassette shelf 18 to a predetermined position based on the detection output of the label confirmation sensor 24, and the roll label 1
2 from the tape 12a fixed cutter 14a of the cutting means 14
Pull out and stand by until it touches. Since the roll label 12 can be automatically replenished in this manner, the labeling machine 11 can be efficiently operated for a long time without an operator.

In the above embodiment, the cassette shelves are arranged in three rows of three.
Although it is formed in a step and can accommodate a maximum of nine roll cassettes, this is an example, and the cassette shelf may be configured to accommodate eight or less roll cassettes or ten or more roll cassettes. Further, in the above embodiment, two roll label replenishing devices were installed in one labeling machine, and the tapes were alternately replenished from these replenishing devices to the labeling machine. However, one roll label was supplied to one labeling machine. A replenishing device may be installed. In this case, it is necessary to suspend the labeling machine when replenishing the roll label. Further, in the above embodiment, the ball screw shaft of the cassette carrying means is driven by the stepping motor, but a servo motor or other motors may be used as long as the rotation angle can be controlled by the pulse signal.

[0027]

As described above, according to the present invention, the pull-out means sends the tip of the tape to the cutting means, and the slack prevention means for preventing the slack of the tape winds up the tape and the position of the tip of the tape. Since the controller is configured to control the feed roller, the feeding means and the slack prevention means based on the detection outputs of the label replenishment sensor that detects the end of the roll label and the label end sensor that detects the end detection portion of the roll label, The tip can be automatically replenished to the cutting means, and the remaining tape can be automatically wound around the shaft when the roll label is low.

Further, a plurality of roll cassettes for rotatably holding roll labels are prepared, these cassettes are accommodated in a cassette shelf in an aligned state, and any one of the roll cassettes accommodated in the cassette shelf is predetermined. If the cassette conveying means conveys the cassette to the position or from the predetermined position to the original position of the cassette shelf, and the controller controls the cassette conveying means based on the detection outputs of the label replenishment sensor and the label end sensor, The roll label can be replenished completely automatically.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention in which an automatic roll label replenishing device is 2
The block diagram of the labeling machine arrange | positioned by the stand.

FIG. 2 is a perspective view of a cassette carrying unit and a cassette shelf.

FIG. 3 is a side view of a roll cassette.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a configuration diagram of a labeling machine including one of the two automatic roll label supply devices.

FIG. 6 is a flowchart showing the operation of the preceding stage of one roll label automatic supply device.

FIG. 7 is a flowchart showing an operation of the middle stage of one roll label automatic supply device.

FIG. 8 is a flowchart showing the operation of the latter stage of one roll label automatic supply device.

[Explanation of symbols]

 11 Labeling Machine 12 Roll Label 12a Tape 13 Feeding Roller 14 Cutting Means 15 Container (Attachment) 17 Roll Cassette 17a Shaft 18 Cassette Shelf 19 Cassette Conveying Means 21 Sending Means 22 Torque Motor (Sagging Preventing Means) 36 Label Replenishment Sensor 37 Label end sensor 43 Vacuum drum 44 Sticking drum

Claims (2)

[Claims] 1. A feed roller (13) for drawing a tape (12a) from a roll label (12) in which a tape (12a) as a label continuum is wound in a roll shape, and a predetermined tape (12a) for drawing the tape (12a). A cutting means (14) for cutting into a single label having a length of, and each of the cut single labels is sucked by a negative pressure by applying a glue to the sucked label, and the label is further coated with the glue. The drum (43,
44), and the labeling machine (1) facing the feed roller (13).
1) a roll cassette (17) which is provided at a predetermined position in the vicinity and holds the roll label (12) rotatably via a shaft (17a), and the tip of the tape (12a) is the feed roller (13). A feeding means (21) for feeding to the cutting means (14) via a slack that can prevent the slack of the tape (12a) provided on the shaft (17a) and can wind the tape (12a). Blocking means (22) and the tape (12a) delivered by the delivery means (21)
A label replenishment sensor (36) for detecting the position of the tip of the label end sensor (36) for detecting the end detection portion provided in front of the tape end end of the roll label (12) wound around the shaft (17a) ( 37), the label replenishment sensor (36) and the label end sensor (3
Roll label automatic of a labeling machine, characterized in that it comprises a controller for controlling the feeding roller (13), the feeding means (21) and the slack prevention means (22) based on each detection output of 7). Supply device. 2. A cassette shelf (18) for storing a plurality of roll cassettes (17) rotatably holding roll labels (12), the cassette shelf (18) accommodating the plurality of roll cassettes (17) in an aligned state, and the cassette. Multiple roll cassettes housed in shelves (18)
Any one of (17) is placed at a predetermined position near the labeling machine (11) or from the predetermined position to the cassette shelf.
(18) cassette transport means (19) capable of transporting to the original position, the controller based on the detection output of the label replenishment sensor (36) and the label end sensor (37)
The automatic roll label replenishing device for a labeling machine according to claim 1, which is configured to control (19).