JP3515609B2 - Labeling machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a labeling machine for peeling an adhesive-attached label releasably attached to a label mount from the label mount and attaching it to an adherend such as a bottle.

[0002]

2. Description of the Related Art As a labeling machine of this type, the applicant of the present invention has drawn out a label mount on which an adhesive label is releasably attached by a pull-out roller, and a label peeling means peels a label from the pulled out label mount. In addition, a patent application was filed for a self-leveler configured such that a vacuum drum provided in the vicinity of the label peeling means sucks and peels the peeled label and crimps the peeled label to an adhering object that arrives ( 61-104936). In this self-leveler, the label detector detects the label that has begun to peel from the backing sheet, the adherend detector detects the adherend that reaches the label crimping position, and the drawer roller is detected by the output of the adherend detector. The activating controller is arranged to control its withdrawal speed to be the same as the peripheral speed of the vacuum drum and to stop the withdrawal roller by the output of the label detector. The pull-out roller is driven by driving means such as a pulse motor or a servo motor.

In the self-leveler thus constructed,
The label was peeled from the label backing at a predetermined position of the vacuum drum that was continuously rotating in time with the arrival of the adherend, and this label was delivered to the vacuum drum at the same speed as the pull-out roller, and the next new label end was peeled. Sometimes stop the drawer roller. As a result, the label peeled from the label mount can be accurately and rapidly applied to the predetermined position of each adherend, and the label application timing can be automatically adjusted even if the label length changes. It is like this.

[0004]

However, in the above conventional self-leveler, the label with adhesive is releasably affixed to the tape-like label mount with a very small predetermined interval, and at a larger interval than this interval. The pull-out roller must be rotated intermittently in order to match the space between the adherends that arrive. As a result, if the rotation speed of the vacuum drum is increased, slippage may occur between the label mount and the pull-out roller, or the life of driving means such as a pulse motor or servo motor for driving the pull-out roller may be shortened. was there. In order to eliminate this point, if the pressure of the pull-out roller against the label mount is increased, the rigidity of the pull-out roller and the like must be increased, which causes a problem of increasing the manufacturing cost.

An object of the present invention is that an adhesive-attached label is releasably attached to a label mount with an extremely small interval,
And even if the distance between the pasted objects is larger than that of the above label, the pull-out roller can be rotated continuously instead of intermittently, and the label can be accurately crimped to a predetermined position of the pasted object. It is to provide a labeling machine that can.

[0006]

The structure of the present invention for achieving the above object will be described with reference to FIGS. 1, 3 and 4 corresponding to the embodiments. The present invention is based on FIG. 1 and FIG. 3 or FIG.
As shown in FIG. 5, a pull-out roller 14 for pulling out the label mount 12 to which the adhesive label 11 is peelably attached, a label peeling unit 16 for peeling the label 11 from the pulled label mount 12, and a proximity to the label peeling unit 16 It is an improvement of the labeling machine provided with a label take-off crimping means 18 for sucking the label 11 which is provided and peeled off and taking it off and crimping the taken-up label 11 to the coming adherend 13. The characteristic structure is that the label take-off and crimping means 18
Is a rotary shaft 46 or 86 extending vertically.
And a plurality of label suction blocks 47 which are provided around the rotary shaft 46 or 86 at the same angle around the rotary shaft 46 or 86 and are rotatable with the rotary shaft 46 or 86, and the blocks 47 approach the label peeling means 16. When block 47
When the block 47 approaches the adherend 13 by reducing the peripheral speed of the rotary shaft 46 or 86 by reducing the peripheral speed thereof.
7 is provided with a block moving means 48 or 88 for separating 7 from the rotary shaft 46 or 86 to increase the peripheral speed thereof.

Further, as shown in FIG. 1, the block moving means 48 is attached to the cam groove 53 and the rotary shaft 46, which are provided around the rotary shaft 46 so as not to rotate, so as to extend radially in the radial direction of the rotary shaft 46. A label suction block 47 is attached to the guide shaft 54 so as to be movable in the radial direction of the rotation shaft 46, and the block 47 is attached to the rotation shaft 46.
When rotating around the center of the rotating shaft 4 is guided by the cam groove 53.
It is preferable to be configured to move in the radial direction of 6. Further, as shown in FIG. 4, the block moving means 88 has a piston rod 93a extending in the radial direction of the rotary shaft 86 and a fluid pressure cylinder 93 fixed to the rotary shaft 86, and the label suction block 47 is connected to the piston rod 93a. It can also be attached to the tip of.

[0008]

In the labeling machine shown in FIGS. 1 and 3, when the adherend 13 reaches a predetermined position, the label mount 12 to which the adhesive label 11 is releasably attached is pulled out by the pull-out roller 14 and the label peeling means 16 is provided. Drawn towards. When the backing sheet 12 reaches the tip of the label peeling means 16, only the backing sheet 12 makes a U-turn at an acute angle, and the label 11 is peeled from the backing sheet 12 due to its rigidity and taken by the label suction block 47 approaching the label 11. At this time, the block 47 moves along the cam groove 53 in the direction approaching the rotating shaft 46, so that the peripheral speed thereof decreases and the block 4
The peripheral speed of 7 and the drawing speed of the label mount 12 are the same.
As a result, the block 47 can accurately take the predetermined position of the label 11.

The block 47 which has taken up the label 11 is guided by the cam groove 53 and moves along the guide shaft 54 in the direction away from the rotary shaft 46. Block 47 is the adherend 13
The label 11 collected by the block 47 when facing the
Is adhered to the adherend 13 by the adhesive force of the adhesive. At this time, since the block 47 is farthest from the rotary shaft 46, the peripheral speed of the block 47 increases, and the adherend 1
It becomes the same as the peripheral speed of 3. As a result, the label 11 picked up by the block 47 is accurately pressure-bonded to a predetermined position on one surface of the adherend 13.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 3, the labeling machine 10 is a device that peels a label 11 with an adhesive from a label mount 12 and attaches the label 11 to an adherend 13. The adhesive-attached label 11 is attached to one surface of a tape-shaped label mount 12 so as to be separable at a predetermined small interval, and in this state, the label mount 12 is rolled to be formed into a roll shape. The adherend 13 is a rectangular tube-shaped container in this example. The labeling machine 10 includes a pull-out roller 14 that pulls out a roll-shaped label mount 12 to which a label 11 is removably attached.
A label peeling means 16 for peeling the label 11 from the pulled out label mount 12, a container conveying means 17 for conveying the container 13, a peeled label 11 which is sucked and taken out, and the label 11 is attached to the outer periphery of the container 13. And a label take-off crimping means 18 for crimping the surface.

As shown in detail in FIG. 3, the pull-out roller 1
4 and the label peeling means 16 are mounted on the first base 21, and the first base 21 is mounted on the machine base 19 having a substantially rectangular shape. The first base 21 is movable in the direction of the solid arrow by rotating the first handle 21a. The roll-shaped label mount 12 is placed on a rotatable roll base 23 protruding from the first base 21, and has a tension roller 24, a first guide roller 31, a second guide roller 3
2, pulled out by the pull-out roller 14 via the label peeling means 16 and the third guide roller 33. The label peeling means 16 is a wedge-shaped peeling plate, and after the label 11 is peeled by the peeling plate 16, only the mount 12 is wound by the mount take-up reel 26 (FIGS. 1 and 3). ). The pull-out roller 14 is driven by a servo motor 27, and a freely rotating pressing roller 28 is pressed against the pull-out roller 14.

The container conveying means 17 includes a conveyor 34 provided across the machine base 19, and a pair of rotary tables 37 rotatably provided at a substantially central portion of the machine base 19 about a main shaft 36 extending in the vertical direction. The supply side star wheel 38 for transferring the container 13 on the conveyor 34 to the rotary table 37 and the container 13 to which the label 11 is attached are transferred to the conveyor 3
4 and a discharge-side star wheel 39 to be transferred (FIG. 3). A screw 43 is provided on the container supply side of the conveyor 34, and the screw 43 maintains the container 13 at a predetermined interval. The pair of rotary tables 37 are provided at a predetermined interval in the vertical direction. Only the upper rotary table 37 is shown, and the lower rotary table is not shown. On the upper rotary table 37 and the lower rotary table, a plurality of sets of container holders 44 and 45 are arranged on the same circumference centered around the main shaft 36 at equal intervals and vertically facing each other. Container holder 44,
The container 13 is held by 45 (FIG. 2). In this example, the container holders 44 and 45 are rotated about every 45 degrees around the main shaft 36.
The space between the container holders 44 and 45 arranged in pairs (FIG. 3) and adjacent to each other is larger than the space between the labels 11 attached on the mount 12. In addition, the main shaft 36, the star wheel 38,
39 and the screw 43 are driven by a single electric motor (not shown) through a gear (not shown).

A second base 22 is mounted on the machine base 19 between the tip of the peeling plate 16 and the rotary table 37, and the label take-off and crimping means 18 is the second base 22.
It is provided above (FIGS. 1 to 3). The second base 22 is the second
By rotating the handle 22a, the handle 22a can be moved in the direction of the broken line arrow in FIG. The label take-off and crimping means 18 is provided with a rotary shaft 46 extending vertically and a plurality of label suction blocks provided around the rotary shaft 46 at the same angle around the rotary shaft 46 and rotatable with the rotary shaft 46. 47, when the block 47 approaches the tip of the peeling plate 16, the block 47 is moved closer to the rotation shaft 46 to reduce its peripheral speed, and when the block 47 approaches the container 13, the block 47 is moved away from the rotation shaft 46 and its peripheral speed is decreased. And block moving means 48 for enlarging. The rotating shaft 46 includes a first shaft 41 rotatably held by a holding cylinder fixed to the second base 22, and a second cylindrical shaft fitted into the first shaft 41 and fixed to the first shaft 41 by a key 51. And a shaft 42 (FIGS. 1 and 2). The first shaft 41 is driven by the electric motor via a gear (not shown), and a rotary encoder 52 is connected to the first shaft 41 via a gear (not shown) (FIG. 3). In this example, six label suction blocks 47 are provided about the rotary shaft 46 at intervals of 60 degrees.

The block moving means 48 has a cam groove 53 which is non-rotatably provided around the rotary shaft 46, and a guide shaft 54 which is attached to the second shaft 42 so as to extend radially in the radial direction of the shaft 42. (FIGS. 1 to 3). The cam groove 53 is annularly provided on the upper surface of a disc 56 fitted in the holding cylinder 49 (FIGS. 1 and 3), and the disc 56 is fixed to the holding cylinder 49 by a key 57 (FIG. 2). The cam groove 53 is formed so as to approach the rotary shaft 46 at a position facing the peeling plate 16, and is separated from the rotary shaft 46 at a position facing the rotary table 37, that is, the rotary table 3 is provided.
7 is formed. The guide shaft 54 is the rotary shaft 4.
6 are provided at the same angle as the angle between the adjacent blocks 47, 47, that is, at intervals of 60 degrees about the rotation shaft 46, and a predetermined space is vertically provided below the second shaft 42. Two pieces are inserted horizontally. A lower portion of a slide plate 59 is slidably fitted into these guide shafts 54 via a slide bearing 58, and a block 47 is attached to an upper portion of the slide plate 59 via a slide bearing 61 and a fixing pin 62. A compression coil spring 63 is loosely fitted to the fixed pin 62 between the slide plate 59 and the block 47. The block 47 is provided so as to be movable in the horizontal direction with respect to the slide plate 59, and the spring 63 urges the block 47 in a direction away from the slide plate 59. A cam follower 64 is attached to the lower end of the slide plate 59, and the cam follower 64 is attached to the cam groove 53.
(Figs. 2 and 3).

A first vacuum hole 47a is formed vertically downward in the upper surface of the block 47, and a plurality of second vacuum holes 47b formed horizontally from the outer surface of the block 47 communicate with the hole 47a (FIG. 2). ). A flange 42a is formed integrally with the second shaft 42 at the upper end of the second shaft 42, and a substantially L-shaped vacuum through hole 42b is formed in the flange 42a. The upper end of the first vacuum hole 47a and one end of the vacuum through hole 42b are connected by a tube 65, and the other end of the vacuum through hole 42b is connected through a vacuum opening / closing means 66 and a tube 67 to a vacuum pump (not shown). The vacuum opening / closing means 66 is the second
The first shaft 41 protruding from the upper end of the shaft 42 is fitted through a bearing 68 and fixed to a flat bar 69 fixed to the second base 22 so that it cannot rotate. When the second shaft 42 rotates, the vacuum passage hole 42a communicates with the vacuum pump from immediately before the block 47 faces the peeling plate 16 to immediately after the block 47 faces the rotary table 37.

A label detecting sensor 73 for detecting the position of the label 11 removably attached to the label mount 12 between the first guide roller 31 and the second guide roller 32.
And a container detection sensor 74 for detecting the presence or absence of the container 13 is provided on the supply side of the conveyor 34 (FIG. 3).
Each detection output of the rotary encoder 52, the label detection sensor 73, and the container detection sensor 74 is connected to a control input of a controller (not shown), and the control output of the controller is connected to the servo motor 27.

The operation of the labeling machine thus configured will be described. Container 1 conveyed by conveyor 34
When 3 reaches a predetermined position, the controller (not shown) adjusts the timing to the peripheral speed and the rotational position of the label suction block 47 based on the detection outputs of the container detection sensor 74, the rotary encoder 52, and the label detection sensor 73. To rotate the servo motor 27. Servo motor 27
Thus, the pull-out roller 14 is driven, and the label mount 12 to which the label 11 is releasably attached moves toward the peel-off plate 16 at a predetermined pull-out speed. When the mount 12 reaches the tip of the peeling plate 16, only the mount 12 makes an acute angle U.
After turning, the label 11 starts to peel from the mount 12 due to its rigidity (FIG. 1). The block 47 approaches the label 11 that has begun to be peeled off, and the block 47 sucks and pulls the label 11 by the negative pressure in the first vacuum hole 47a. At this time, since the block 47 is moving along the cam groove 53 in the direction approaching the rotating shaft 46, its peripheral speed is low, and the peripheral speed of the block 47 and the drawing speed of the mount 12 are the same. As a result, the block 47 can accurately take the predetermined position of the label 11.

Block 47 is for removing the label 11 and then
As it rotates in the direction of the solid line arrow in FIG.
And is moved along the guide shaft 54 in the direction away from the rotation shaft 46. Block 47 is rotary table 37
At the same time as reaching the position facing the container holder 44, 4 via the screw 43 and the supply side star wheel 38.
The container 13 transported by 5 reaches a position facing the block 47, and the label 11 sucked by the block 47 is attached to the container 13 by the adhesive force of the adhesive. At this time, since the block 47 is farthest from the rotation shaft 46, the peripheral speed of the block 47 is high and the block 4
The peripheral speed of 7 and the peripheral speed of the container become the same. As a result, the label 11 picked up by the block 47 is accurately pressure-bonded to a predetermined position on one surface of the container 13. Further, both ends of the label 11 projecting from the container 13 are adjacent to the one surface of the container 11 by a pressure roller (not shown) provided upright from the machine base 19 on the downstream side of the pressure bonding position of the label 11 on the periphery of the rotary table 37. It is crimped on both sides.

When the containers 11 arrive continuously, these containers 11 are maintained at a predetermined interval by the screw 43, so that the mount 12 to which the label 11 is releasably attached is driven by the servomotor 27 to be pulled out. It is continuously drawn out by the roller 14. At this time as well, since the block 47 moves in the radial direction of the rotation shaft 46 in the same manner as described above, the label 11 can be accurately attached to the container 13. When attaching the label 11 to containers (not shown) having different outer diameters, the first base 21 and the second base 22 are operated by operating the first handle 21a and the second handle 22a.
Is moved to adjust the block 47 to the outer diameter of the container, and the disk on which the cam groove 53 is formed is replaced to make the peripheral speed of the block 47 equal to the peripheral speed of the container.

FIG. 4 shows a second embodiment of the present invention. 4, the same reference numerals as those in FIG. 2 indicate the same parts. In this example,
The block moving means 88 has a piston rod 93 a extending in the radial direction of the rotary shaft 86 and has a second shaft 8 of the rotary shaft 86.
2, an air cylinder 93 fixed to the second cylinder is provided. A holding cylinder 89 is fixed to the second base 22, and the second shaft 82 is fixed to a first shaft 81 rotatably inserted in the holding cylinder 89 via a key 94. A plurality of air cylinders 93 are provided around the second shaft 82 at the same angle around the second shaft 82. In this example, as in the first embodiment, six cylinders 93 are provided at intervals of 60 degrees about the second shaft 82, and these cylinders 93 are provided at the lower end of the second shaft 82 integrally with the shaft 82. It is fixed on the formed flange portion 82a. Further, each cylinder 93 has a pair of piston rods 93a, 93a which are parallel to each other with a predetermined interval in the vertical direction.

A label suction block 47 is attached to the tips of these piston rods 93a, 93a via a plate 99, a slide bearing (not shown), and a fixing pin 62. The supply and discharge of compressed air to and from the cylinder 93 is controlled by a controller (not shown), and when the block 47 approaches the peeling plate 16, the piston rod 93a.
Of the piston rod 9 when the block 47 approaches a rotary table (not shown).
3a is projected. Reference numeral 90 denotes an adjusting rod which is provided below the cylinders 93 so as to project from the outer peripheral surface of the flange portion 82a. The adjusting rod 90 includes a first stopper 91 and a second stopper 92.
It is fixed slidably along 0. The protrusion position of the piston rod 93a is determined by the first stopper 91, and
The stopper 92 determines the retracted position of the piston rod 93a.

The operation of the labeling machine constructed as described above is the same as that of the first embodiment except that the block moving means 88 is provided with the air cylinder 93, and therefore the repeated description is omitted. When the label 11 is attached to containers (not shown) having different outer diameters, the first not shown
By operating the handle and the second handle, the first base (not shown) and the second base 22 are moved to adjust the block 47 to the outer diameter of the container and the first stopper 91.
And the position of the second stopper 92 is adjusted. As a result, the troublesome work of exchanging the disk having the cam groove of the first embodiment is not necessary, so that it can be performed by an extremely simple work.

In the above-mentioned first and second embodiments, the object to be adhered has been described as a rectangular tube-shaped container. However, the object is not limited to this, and a cylindrical container may be used. It may be an adherend. Further, the number of label suction blocks and the number of container holders described in the first embodiment, the number of air cylinders and the number of piston rods described in the second embodiment are examples, and are not limited to these. is not.
Further, although the air cylinder is mentioned as the fluid pressure cylinder in the second embodiment, it may be a hydraulic cylinder or another fluid pressure cylinder.

[0024]

As described above, according to the present invention, a plurality of label suction blocks provided at the same angle around the rotation axis of the label take-up and pressure-bonding means are rotated together with the rotation axis. When the block comes close to the label peeling means, the block is moved closer to the rotation axis to reduce the peripheral speed.When the block moving means approaches the adherend, the block is moved away from the rotation axis to increase the peripheral speed. Since it is configured, the label with adhesive is releasably attached to the label mount with an extremely small interval, and even if the interval of the coming adherend is larger than the interval of the label, the drawer roller is continuously rotated. be able to. As a result, in comparison with a conventional self-leveler that intermittently rotates the pull-out roller, in the labeling machine of the present invention, by keeping the ratio of the pull-out speed of the label mount and the transfer speed of the adherend constant, the label suction block Even if the peripheral speed is increased, slipping does not occur between the drawing roller and the label mount, and the label can be accurately pressure-bonded to a predetermined position of the adherend.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part including a label suction block and a block moving means of a labeling machine according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a plan view of the labeling machine.

FIG. 4 is a sectional view corresponding to FIG. 2 showing a second embodiment of the present invention.

[Explanation of symbols]

10 labeling machines 11 Label with adhesive 12 label mount 13 Containers (attached items) 14 Drawer roller 16 Peeling plate (Label peeling means) 18 Label collection crimping means 46,86 rotating shaft 47 Label suction block 48,88 block moving means 53 Cam groove 54 Guide shaft 93 Air cylinder (fluid pressure cylinder) 93a Piston rod

Claims (3)

(57) [Claims] 1. A pull-out roller (14) for pulling out a label mount (12) to which a label (11) with an adhesive is releasably attached, and the label (11) is peeled off from the pulled label mount (12). A label peeling means (16) for adhering to the label peeling means (16), which is provided in the vicinity of the label peeling means (16) (13)
In a labeling machine provided with a label take-off crimping means (18) for crimping to the label take-up crimping means (18), the label take-off crimping means (18) is a rotary shaft (46, 86) provided so as to extend in a vertical direction, and the rotary shaft. A plurality of label suction blocks (47) that are provided around the rotating shaft (46,86) at the same angle around the rotating shaft (46,86) and are rotatable with the rotating shaft (46,86), and the block ( When 47) approaches the label peeling means (16), the block (47) is brought closer to the rotary shaft (46, 86) to reduce its peripheral speed, and the block (47) is the object to be attached.
When approaching (13), move the block (47) to the rotary shaft (46, 8).
Block moving means (4)
8, 88) and labeling machine. 2. A cam groove (53) in which a block moving means (48) is non-rotatably provided around a rotary shaft (46), and the rotary shaft (46).
And a guide shaft (54) extending radially in the radial direction of the rotary shaft (46) and attached, and the label suction block (47) is attached to the guide shaft (54) by the radius of the rotary shaft (46). Movably mounted in the direction and the block (47) is attached to the rotary shaft (46).
The labeling machine according to claim 1, wherein the labeling machine is configured to be guided by the cam groove (53) to move in the radial direction of the rotating shaft (46) when rotating around the center. 3. The block moving means (88) comprises a fluid pressure cylinder (93) having a piston rod (93a) extending in the radial direction of the rotary shaft (86) and fixed to the rotary shaft (86). The labeling machine according to claim 1, wherein a label suction block (47) is attached to a tip of the piston rod (93a).