JPH0327933Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is supplied in a state in which the label is removably affixed on a backing paper to the surface of an object to be affixed, such as a postcard, which is transported on a transport route. The present invention relates to a label pasting device for automatically pasting a label while peeling it from the mount.

(Prior art and its problems) In this type of label pasting device, by folding and moving the label-attached mount at the tip of the label peeling knife edge member, the label, which is more rigid than the mount, is automatically removed from the mount. A label pasting device is known in which a label that is peeled off from a backing paper and sent out is pasted onto the surface of an object to be labeled on a conveyance path using a label pressing roller.

On the other hand, as band-shaped mounts on which labels are removably attached at regular intervals, there are known mounts wound into rolls and zigzag folding mounts with perforations in the folds. ,
Not only is there a need for a means to rotatably support it in a fixed position, but also when one roll of mount runs out, the machine must be stopped, a new roll of mount is set, and a new roll of mount is pulled out. While it is necessary to set the mount on the mount guide path of the labeling device, in the case of the zigzag folding mount as described above, it is not only necessary to simply place it on the floor etc., but also when there is only a small amount of mount remaining. As long as the rear end of the mount is connected to the starting end of a new zigzag folding mount when the mount is worn out, label pasting work can be performed continuously without stopping the machine.

As mentioned above, the zigzag folding mount is extremely advantageous in terms of replenishment, but in a label pasting device that uses a knife edge member for label peeling as described above, the mount that is pulled by the drive roller for tensioning the mount is When folding back at the tip of the knife edge member, a large tensile force acts on the mount, making it impossible to use it. That is, if a zigzag folding mount with perforations in the folds is used as described above, when the perforated fold is folded back at the tip of the knife edge member, there is a risk that the mount may easily break at the perforations. There is. For this reason, conventional labeling devices of this type have been forced to use rolled paper mounts, which are disadvantageous in terms of replenishment.

(Means for Solving the Problems) The present invention proposes a label pasting device that can solve the conventional problems as described above, and its feature is that labels can be peeled off at equal intervals. a knife edge member for label peeling that folds and moves the pasted band-shaped mount on the transport path of the label-applied object; a mount tensioning drive roller that pulls the folded mount at the tip of the knife edge member;
a drive roller for supplying a mount that supplies the mount toward the knife edge member; and a label that presses and affixes the label, which is peeled off from the mount folded at the tip of the knife edge member and sent out, to the surface of the object to be labeled on the conveyance path. a pressing roller is provided, and each of the driving rollers is provided with a pressing roller, and the circumferential speed of the driving roller for pulling the mount is made slightly higher than the circumferential speed of the driving roller for supplying the mount; The structure is such that slippage occurs more easily between the mount supply drive roller and the mount than between the tension drive roller and the mount.

(Example) An example of the present invention implemented as a device for pasting labels on postcards will be described below with reference to the attached illustrative drawings.

In FIG. 1, reference numeral 1 denotes a belt conveyor, which conveys a large number of stacked postcards 2 toward a suction and upward conveyance means 3 in a state in which each postcard 2 stands up substantially vertically. Reference numeral 4 denotes a postcard fall prevention means, which presses and urges the last postcard 2 in the conveying direction while following the movement of the entire postcard on the belt conveyor 1. The suction and upward conveyance means 3 includes a suction and conveyance belt 5 having a large number of suction holes and an intake box 6, and includes a vertical upward movement path section 5 of the suction and conveyance belt 5.
The first postcard 2 that has come into contact with a is sucked and conveyed vertically upward one by one. Reference numeral 7 denotes a sorting means, which is equipped with a feed drive roller 8 and a reverse drive roller 9, and the postcard 2 sent vertically upward by the suction and upward conveyance means 3 is separated by approximately one postcard between both rollers 8 and 9. When passing through the gap, any extra postcards adhering to the outside are brushed off by the reversing drive roller 9.

Each postcard 2 sent vertically upward one by one via the sorting means 7 is sent via a pinch roller 12 between a postcard supporting belt conveyor 10 and a holding belt conveyor 11, and is then sent between the front and rear postcards. The sheets are sent to the horizontal conveyance path 13 for label pasting constituted by the horizontal conveyance path section 10a of the belt conveyor 10 for supporting postcards in a state where the intervals are widened, and are conveyed at appropriate intervals on the conveyance path 13. .

On the other hand, as shown in FIG. 6, labels 15 are peelably attached to the surface of the strip-shaped mount 14 at regular intervals, and perforations 16 are provided in the folds located at equal intervals between the labels 15. Mount 1
4A is placed on the floor or the like in a zigzag-folded state at the perforation 16, as shown in FIG. In FIG. 6, three labels 15 are attached between adjacent perforations 16 (folds), but depending on the size of the labels 15, perforations 16 (folds) may be provided between each label 15. Also good.

As shown in FIG. 1, the labeled mount 14A, which is lifted from the zigzag folding mount placed on the floor etc., is moved by two upper and lower guide shafts 17.
Label pasting unit 18 via between a and 17b
supplied to This labeling unit 18 is
As shown in FIGS. 2 to 5, a label peeling knife edge member 19 for folding and moving the labeled mount 14A above the conveyance path 13;
A driving roller 20 for pulling the unlabeled mount 14B folded back at the tip of the knife edge member 19, a drive roller 21 for supplying the mount 21 that supplies the labeled mount 14A toward the knife edge member 19, and a driving roller 21 for supplying the labeled mount 14A toward the knife edge member 19. It has a label pressing roller 22 and a guide roller 23 that press and stick the label 15 peeled off from the mount 14 that is folded at the tip and sent out onto the surface of the postcard 2 on the conveyance path 13, and a guide roller 23, and the drive roller 2
Holding rollers 24 and 25 are also shown at 0 and 21, respectively, and an elastic braking plate 26 is attached to the guide roller 23.

Reference numeral 27 denotes a movable support plate located on one side of the movement path of the labeled mount 14A.One end of the drive rollers 20, 21 and the guide roller 23 are supported on the movable support plate 27, and one end of the knife edge member 19 is supported on the movable support plate 27. is also fixed to the movable support plate 27. The drive shaft 20a of the mount tensioning drive roller 20 is supported by a fixed bearing plate 29 that projects from the base 28 and is adjacent to the movable support plate 27. Therefore, the movable bearing plate 27 is supported by the drive shaft 20a. 2
It can swing up and down about 0a, and the tip of the label pressing roller 22 moves upward by a tension spring 30 stretched between the movable bearing plate 27 and the fixed bearing plate 29. biased in the direction.

A plate 32 provided with a handle 31 is projecting sideways from the tip of the movable bearing plate 27, and an automatic locking latch 33 is attached to the lower side of the plate 32. On the other hand, a locked member 35 is fixed on the base 28 via a bracket 34, and when the movable bearing plate 27 is lowered to a predetermined position against the biasing force of a spring 30, the latch 3
The claw 33a of No. 3 automatically engages with the locked member 35 and prevents the movable bearing plate 27 from moving upward. 36 is a proximity switch attached to the locked member 35, which is close to the lower side of the plate 32 when the movable bearing plate 27 is set at a predetermined position.
It operates ON and enables the operation of this labeling device. The plate 32 is provided with an opening 32a for operating a push button 33b for releasing the latch 33.

The label pressing roller 22 is supported between a pair of right and left bearing arms 38 fixed to a rotating shaft 37 supported by the movable bearing plate 27, and
At 7, there is a pressing plate 39 that presses the labeled mount 14A on the upper side of the knife edge member 19.
is installed. Further, the rotary shaft 37 has an operating lever 40 protruding in the radial direction from an end that passes through the movable bearing plate 27 and projects to the opposite side, and the operating lever 40 is fixed on the base 28. A tension spring 41 is tensioned between the end of the rotating shaft 37 and the plate 32 so as to abut a part of the bracket 34 from above. 4
Reference numeral 2 denotes a stopper pin that limits the rotation range of the operating lever 40, and is provided to protrude from the movable bearing plate 27.

Each of the pressing rollers 24, 25 is supported between a pair of left and right bearing arms 45, 46 fixed to rotating shafts 43, 44 supported by a movable bearing plate 27, and protrudes from these rotating shafts 43, 44. By means of tension springs 49 and 50 stretched between intermediate arms 47 and 48 and movable bearing plate 27, each pressing roller 24 and 25 is connected to the corresponding drive roller 2.
Arms 51 and 52 are attached to the rotating shafts 43 and 44, respectively, at the ends protruding on the opposite side of the movable bearing plate 27, and these arms 51 and 52 are pressed into contact with each other. Cam driven rollers 53 and 54, which are pivotally supported at their free ends, are loosely fitted into respective recesses 56 and 57 of a fixed disc-shaped cam 55 fixed to the fixed bearing plate 29 in a state concentric with the drive shaft 20a. Of course, each pressing roller 24, 25 is pressed against the driving roller 2 by the urging force of the springs 49, 50.
The mounting angles of the arms 51 and 52 are adjusted so that the cam driven rollers 53 and 54 and the recesses 56 and 57 do not press against each other when they are in pressure contact with the arms 51 and 21.

The elastic braking plate 26 attached to the guide roller 23 has a free end elastically positioned above the circumferential surface of the guide roller 23 at two locations in the axial direction of the rotating shaft 58 whose one end is supported by the movable bearing plate 27. It is attached so that it comes into pressure contact with the An operating lever 59 is provided in a radial direction at the end of the rotary shaft 58 that projects toward the opposite side from the movable bearing plate 27, and a tension spring 60 is stretched between the operating lever 59 and the movable bearing plate 27. The operating lever 59, which rotates upward, comes into contact with a stopper pin 61 that is attached to the fixed bearing plate 29 so that its position can be adjusted, and as a result, the elastic brake plate 26 comes into pressure contact with the circumferential surface of the guide roller 23. held at an angle.

The labeled mount 14A passes between the guide roller 23 and the elastic brake plate 26, between the mount supply drive roller 21 and the pressing roller 25, and between the knife edge member 19 and the pressing plate 39, and then passes through the knife edge member. After the knife edge member 19 is guided to the tip of the knife edge member 19 and folded back along the tip of the knife edge member 19, it is passed between the drive roller 20 for tensioning the mount and the pressing roller 24. In this way, the labeled mount 14A is pasted with a label. unit 1
8 or when setting the labeling unit 1.
8, when carrying out maintenance, inspection and repair of each part of the latch 33, press the lock release push button 33b of the latch 33 to release the claw 33a from the locked member 35, as shown in FIGS. 2 and 3, respectively. As shown by the imaginary line, the movable bearing plate 27 is opened upwardly around the drive shaft 20a by the handle 31 with the urging force of the spring 30.

As a result, the operating lever 40 of the rotating shaft 37 that fixes the presser plate 39 is moved to the bracket 3 on the base side.
4, the operating lever 40
The rotating shaft 37 rotates under the biasing force of the spring 41 until it comes into contact with the stopper pin 42, and as a result, the label pressing roller 22 and the pressing plate 39 are flipped upward as shown in FIG. 4, and the knife edge member 19 and holding plate 39
A gap is opened between them. Also, the pressing rollers 24, 2
Since the cam driven rollers 53 and 54 which are interlocked with the arms 51 and 52 and the rotating shafts 43 and 4 are pushed out from the recesses 56 and 57 of the fixed disc-shaped cam 55, respectively,
4 and bearing arms 45, 46, the press rollers 24, 25 swing in a direction away from the circumferential surface of each drive roller 20, 21 against the biasing force of springs 49, 50, as shown in FIG. As shown in FIG.
21 will be opened. Furthermore, since the rotating shaft 58 supporting the elastic brake plate 26 moves downward and away from the stopper pin 61, the operating lever 59 is moved upward by the biasing force of the spring 60 so that it comes into contact with the stopper pin 61. This rotation is transmitted through the rotation shaft 58 to the elastic brake plate 2.
6, the elastic brake plate 26 rotates in a direction away from the guide roller 23, as shown in FIG. 4, and the gap between the elastic brake plate 26 and the guide roller 23 is opened.

By moving the movable bearing plate 27 (label pasting unit 18) upward as described above, each part through which the labeled mount 14A should be passed is automatically opened, making it easy to set up the labeled mount 14A. . In this way, the movable bearing plate 27
When the switch is moved upward, the plate 32 on the movable bearing plate 27 side is separated upward from the proximity switch 36 on the fixed side shown in FIG. 3, so the proximity switch 36 is in the OFF state, and the operation start switch is This labeling device cannot be operated even if it is turned on.

Once the labeled mount 14A is set as shown in FIG. 2, the movable bearing plate 27 is pushed down by the handle 31 against the biasing force of the spring 30, and the claw 33a of the latch 33 is moved to the locked member 35 on the fixed side. 2 to lock the movable bearing plate 27 in the predetermined position shown in solid lines in FIG. As a result, the third
As shown in the figure, the operating lever 40 of the rotary shaft 37 that fixes the presser plate 39 rides on the bracket 34 on the base side, and the rotary shaft 37 touches the spring 4.
1, the label pressing roller 22 and the pressing plate 3 rotate as shown in FIG.
9 is lowered to a predetermined position, and the presser plate 39 sandwiches the labeled mount 14A with the knife edge member 19. Also, the pressing rollers 24, 2
Since the cam driven rollers 53 and 54 interlocked with the fixed disc-shaped cam 55 correspond to the recesses 56 and 57 of the fixed disc-shaped cam 55, the arms 51 and 5 are moved so that the cam driven rollers 53 and 54 fit into the respective recesses 56 and 57.
2. Rotating shafts 43, 44 and bearing arms 45, 4
6, the pressing rollers 24, 25 are swung by the biasing force of springs 49, 50, and sandwich the labeled mount 14A with the corresponding drive rollers 20, 21, respectively, as shown in FIG. Furthermore, since the rotating shaft 58 supporting the elastic brake plate 26 moves upward with respect to the stopper pin 61, the operating lever 59 is pushed down relatively by the stopper pin 59 against the biasing force of the spring 60, and this The rotation is transmitted to the elastic brake plate 26 via the rotating shaft 58, and the elastic brake plate 26 sandwiches the labeled mount 14A with the guide roller 23, as shown in FIG.

In addition, the movable bearing plate 27 (label pasting unit 1
8) is locked in a predetermined position, the proximity switch 36 detects the plate 32 and turns on, as shown in FIG. 3, so that the labeling apparatus can be operated. Note that when the labeled mount 14A is set in the labeling unit 18 as described above, the label 15 is peeled off from the mount 14 as it is folded back at the tip of the knife edge member 19. The lower side is a labelless mount 14B. The unlabeled mount 14B after passing between the mount tension drive roller 20 and the pressing roller 24 of the label pasting unit 18 passes through the guide roller 62 and dancer roller 63 shown in FIG. It is wound up.

Therefore, the drive shafts 20a, 21a of both the drive rollers 20, 21 are connected to each other in a ratio of 1:1 by the transmission belt 65.
By rotating one drive shaft 20a with a motor (not shown), both drive rollers 20 and 21 rotate in respective predetermined directions at the same rotational speed. The diameter of the mount tension drive roller 20 is made slightly larger than the diameter of the mount supply drive roller 21 so that the circumferential speed of the mount tension drive roller 20 is slightly faster than the circumferential speed of the mount supply drive roller 21. It consists of Moreover, these two drive rollers 20, 21
is made of an elastic material such as silicone rubber at least on its peripheral surface, and both press rollers 24 and 25 are molded from metal such as aluminum. The peripheral surface is made rough by knurling or the like, and the pressing roller 25 on the side that comes into pressure contact with the other mount supply drive roller 21 has a smooth peripheral surface. Furthermore, both pressing rollers 24, 25
By changing the strength of the tension springs 49 and 50 that urge the drive rollers 20 and 21 toward the driving rollers 20 and 21, the pressing force of the presser roller 24 against the mount tensioning drive roller 20 is changed to the pressing force of the presser roller 25 against the mount supply driving roller 21. It is several times to 10 times higher than the power.

Therefore, while the unlabeled mount 14B cannot slip against the mount tensioning drive roller 20, the labeled mount 14A can easily slip against the mount supply drive roller 21. Drive roller 20 for tensioning the mount
Since the mount pulling speed by the mount is slightly faster than the mount supply speed by the mount supply drive roller 21,
The labeled mount 14A is forcibly pulled at the pulling speed (roller circumferential speed) of the mount tensioning drive roller 20, and is pulled against the guide roller 23 and the elastic brake plate 2.
6, between the mount supply drive roller 21 and the press roller 25, and between the knife edge member 19 and the press plate 39, and then folded back at the tip of the knife edge member 19 and connected to the mount tension drive roller 20. It is drawn in between it and the pressing roller 24. However, the drive roller 2 for supplying the mount
When the paper slips between the drive roller 21 and the pressure roller 25, the paper is fed by the drive roller 21 and the pressure roller 25, which have a slightly slow circumferential speed. In comparison, the tension acting on the mount portion that folds back the tip of the knife edge member 19 is significantly smaller.

By folding and moving the labeled mount 14A at the tip of the knife edge member 19 as described above, the label 15 that is releasably attached to the mount 14 can be attached to the knife edge member 19 as shown in FIG. When folding back at the tip of
Since the rigidity of the label 15 is greater than that of the mount 14, the label 15 is naturally peeled off from the mount 14 and sent out in the direction in which the knife edge member 19 extends. The label 15 peeled off from the mount 14 and sent out is transported to the lower horizontal conveyance path 1 for label pasting.
In order to attach the labels onto the postcards 2 being conveyed at appropriate intervals on the postcards 3 using the label pressing roller 22, the following control is performed.

That is, as shown in FIGS. 2 and 5, the labeling unit 18 is provided with a photoelectric switch 66 in front of the knife edge member 19 for detecting passage of the label 15 on the labeled mount 14A. This photoelectric switch 66 includes a projector 66a and a light projector 66a which are attached oppositely to each other above and below a slit 68a for passing through a labeled mount of a bracket 68 which is supported via a support rod 67 so that its position can be adjusted in the moving direction of the labeled mount 14A. A transmission type photoelectric switch consisting of a light receiver 66b and a light emitter 66a.
The light rays from the label 15 do not pass through the backing paper 14.
has been adjusted to operate transparently.
Moreover, as shown in FIG. 7, this photoelectric switch 66
is positioned so that the detection position is located at the trailing edge of the leading label 15 whose leading edge is located on the knife edge member 19, and when it detects passage of the trailing edge of the leading label 15 (changes from OFF state to ON state). (when switching occurs), the drive of both drive rollers 20 and 21 in the labeling unit 18 is stopped,
The leading label 15 is stopped and waited just in front of the knife edge member 19 as shown in FIG.

On the other hand, as shown in FIG. 7, in the horizontal conveyance path 13 for labeling that conveys the postcard 2, there is a position located above the position directly below the knife edge member 19 by approximately the length of the postcard 2 in the conveyance direction. A photoelectric switch 69 for detecting passage of the postcard 2 is provided.

This photoelectric switch 69 also uses a transmission type photoelectric switch consisting of a light emitter 69a and a light receiver 69b, and detects the passing of the trailing edge of the postcards 2 that are continuously conveyed at appropriate intervals on the conveyance path 13. When this occurs (when the state is switched from the OFF state to the ON state), the drive rollers 20 and 21 in the label pasting unit 18 are started to be driven.

As a result of the label-attached mount 14A being transported by the drive rollers 20 and 21 that rotate in conjunction with the detection operation of the photoelectric switch 69, it stops and waits just before the knife edge member 19, as shown in FIG. As described above, the leading label 15 is peeled off from the mount 14 and sent out from the tip of the knife edge member 19.
The positions of the photoelectric switches 66 and 69 are adjusted so that they exactly overlap a predetermined position on the surface of the postcard 2 being conveyed on the conveyance path 13.

As described above, the label 15 sent out from the tip of the knife edge member 19 is pressed and affixed to a predetermined position on the surface of the postcard 2 being conveyed on the conveyance path 13 by the label pressing roller 22, and is finally removed from the mount 14. break away. Of course, the feeding speed of the label 15 (transfer speed of the labeled mount 14A)
The transport speed of the postcards 2 on the transport path 13 is equal, but since the transport interval of the postcards 2 on the transport path 13 is sufficiently widened compared to the pasting interval of the labels 15 on the mount 14, Label 1 as explained in
5. Function of photoelectric switch 66 for passage detection and postcard 2
Due to the function of the photoelectric switch 69 for detecting passage of
The labeled mount 14A is transferred intermittently,
After waiting for the postcard 2 to arrive at the labeling position, the label 15 is intermittently sent out from the knife edge member 19.

Note that the above labeling unit 18 is connected to the drive shaft 2.
As shown in FIG.
Since these position adjustment means 7 are supported on
By adjusting the position of the label pasting unit 18 using the numbers 0 and 71, the position of the label 15 sent out from the tip of the knife edge member 19 can be freely adjusted in the front, rear, left and right directions.

As described above, each postcard 2 conveyed at appropriate intervals on the conveyance path 13 is automatically labeled with a label 1.
5 will be affixed, but whether or not the label 15 is affixed to a predetermined position is detected as follows.

That is, as shown in FIGS. 7 to 10, the conveyor belt of the postcard support belt conveyor 10 is located on the conveyance path 13 on the downstream side of the label pressing roller 22 of the label pasting unit 18. a reflective photoelectric switch 76 that detects the side part of the postcard 2 protruding laterally from the belt conveyor 73 from the back side through a through hole 75 provided in a plate 74 that supports the postcard 73;
As shown in FIG. 8, when this photoelectric switch 76 detects the front end of the side of the postcard 2, the front end of the side of the label 15 attached to a predetermined position on the postcard 2 is inserted through the through hole 75. A transmission type photoelectric switch 77 for detection is provided. This photoelectric switch 77 is composed of a light emitter 77a disposed above the through hole 75 and a light receiver 77b disposed below the through hole 75.
The light beam from 7a passes through postcard 2, but label 15
and Postcard 2 are both adjusted so that they are not transparent.

Therefore, when the label 15 is attached to a predetermined position on the postcard 2 and the distance between the front edge of the postcard 2 and the front edge of the label 15 is normal, the postcard detection photoelectric switch 76 At the same time as detecting the front edge of the side part (switching from OFF state to ON state),
The label detection photoelectric switch 77 detects the front edge of the side portion of the label 15 (switches from the ON state to the OFF state). If the distance between the front edge of the postcard 2 and the front edge of the label 15 is too wide,
Even though the postcard detection photoelectric switch 76 detects the front edge of the side of the postcard 2, the label detection photoelectric switch 77 does not detect the front edge of the side of the label 15. Conversely, if the distance between the front edge of the postcard 2 and the front edge of the label 15 is too narrow, the postcard detection photoelectric switch 7
The label detection photoelectric switch 77 detects the front end of the side of the label 15 before the label 6 detects the front end of the side of the postcard 2.

As shown in FIGS. 9 and 10, the transport path 13 and the next labeled postcard collection means 78
There is an opening/closing gate 79 for separating and collecting defective postcards.
is installed. This opening/closing gate 79 is attached to a rotating shaft 81 that is rotationally driven by a rotary solenoid 80, and is normally held in the closed position shown by the solid line in FIG. 9 by the biasing force of a spring. The labeled postcard 2 sent out from 13 passes over this opening/closing gate 79 and is sent out to the next collection means 78, but as described above, it passes through the detection position by both photoelectric switches 76 and 77. Label 15 on postcard 2
When it is detected that the pasting position of the postcard is abnormal, the rotary solenoid 80 is activated and the opening/closing gate 79 is opened upward as shown by the imaginary line in FIG. It is delivered to a collection tray 82. 83 is the opening/closing gate 7
9 (at the end of the conveyance path 13), the holding roller is supported between a pair of bearing arms 84 that can swing vertically, and is biased downward.

The collecting means 78 for the labeled documents 2 includes:
As shown in FIG. 1, a pair of left and right belt conveyors 85 whose speed is sufficiently lower than the speed at which postcards 2 are sent out from the conveyance path 13;
5, and a pair of left and right pressing wheels 88 that are pivoted on the vertically swingable bearing arm 87 and biased downward. This is a well-known method in which labeled postcards 2 sent out through the opening/closing gate 79 are stacked and collected in an obliquely standing position along the inclined plate 86. As shown in FIG. 1, the backing paper 14 after label peeling, that is, the unlabeled backing paper 14B sent out from the label pasting unit 18 by the drive roller 20 for tensioning the backing paper, is moved to the guide roller 62.
It is wound up on the winding drive shaft 64 via the dancer roller 63, but as shown in FIGS.
As shown in detail in FIG. 2, the winding drive shaft 64 is continuously driven in the winding direction by a motor 89, and the end of the label is secured to the winding drive shaft 64 by a mount clip 90. The blank mount 14B is continuously wound up. However, as explained earlier, the unlabeled mount 14B is sent out intermittently by the mount tensioning drive roller 20, which is driven intermittently, and moreover at a higher speed than the winding speed of the winding drive shaft 64. Labelless mount 14B that occurs when being sent out
The slack is absorbed by the dancer roller 63.

The dancer roller 63 is supported in a cantilevered manner on the free end of a bearing arm 93 that is vertically swingably supported by a support shaft 92 on a bracket 91 that supports a winding drive shaft 64. arm 93
A tension spring 94 is interposed between the bearing arm 93 and the bracket 91 so as to contract most when the bearing arm 93 is at approximately the center of its vertical swing range. Of course, this tension spring 94 is connected to the dancer roller 63 via the bearing arm 93.
It does not have tension that would force the dancer roller 63 to return to the approximate center position of the vertical swing range, but it helps the dancer roller 63 move upward from the lower limit position and reliably moves the dancer roller 63 downward from the upper limit position. It is for the purpose of

As shown in FIGS. 11 and 12, the mount 14 is attached to the sides of the pair of upper and lower guide rollers 17a and 17b provided in the path for supplying the mount 14A with the label to the label pasting unit 18. A transmission type photoelectric switch 95 is provided to detect the presence of the label-attached mount 14A, and is used to automatically stop the operation of the label pasting device when the label-attached mount 14A ends.

(Operations and Effects of the Invention) The label pasting device of the present invention can be implemented as described above, and according to the device of the present invention, the drive roller for pulling the backing paper that has been folded back by the knife edge member is The labeled mount is fed towards the knife edge member for label peeling by passing between the mount supply drive roller and the pressing roller, both of which have a slow circumferential speed, so that Since the structure is designed so that slipping occurs more easily between the mount supply drive roller and the mount, the labeled mount can be reliably pulled and transported at a constant tensioning speed determined by the circumferential speed of the mount tensioning drive roller, as in the conventional case. In addition, the label-attached mount is always maintained in a tensioned state on the upper side of the knife edge member, so that it is synchronized with the labeled object on the conveyance path, so that the labeling action on the labeled object is always accurate. Although this can be done reliably, the mount tensioning force of the mount tensioning drive roller directly acts on the mount, causing excessive tension to be applied to the mount. can be significantly reduced.

Therefore, as shown in the example, a zigzag folding mount with perforations in the fold is used as the mount with labels, and the replenishment of the mount with labels is as follows:
Even if this can be done efficiently without stopping the machine, there will be no inconvenience such as the mount being easily broken at the perforations when folded back at the tip of the knife edge member. In addition, although the labeled mount is fed intermittently, even if the feeding speed is increased to improve the label pasting ability, the tension applied to the mount at the start of intermittent feeding is reduced by the mount feeding action of the mount feeding drive roller. , there is no fear that the mount will break unexpectedly.

[Brief explanation of drawings]

Fig. 1 is a schematic side view illustrating the overall configuration of the label applicator, Figs. 2 and 3 are longitudinal side views illustrating the label applicator unit, and Fig. 4 is a schematic side view illustrating the label applicator unit when it is opened upward. 5 is a plan view of the same unit, FIG. 6 is a perspective view illustrating the operation of attaching a label to a postcard, and FIGS. 7 and 8 are longitudinal sections illustrating the detection mechanism at the location where the label is attached. A side view, FIG. 9 is a vertical cross-sectional side view illustrating the location where defective products are separated and collected, and FIG. 10 is a plan view of the same.
FIG. 11 is a side view illustrating the mount winding and recovery means, and FIG. 12 is a rear view thereof. 1... Belt conveyor for supplying postcards, 2... Postcards, 3
...Adsorption lifting conveyance means, 7...Postcard handling means, 10...
Belt conveyor for supporting postcards, 11... Belt conveyor for holding postcards, 13... Horizontal conveyance path for pasting labels, 14... Mounting paper, 14A... Mounting paper with labels, 14
B...Labelless mount, 15...Label, 16...Perforation, 18...Label pasting unit, 19...Knife edge member for label peeling, 20...Driving roller for mount tension, 21...Driving roller for mount supply, 22
...Label holding roller, 23... Guide roller, 24, 25... Holding roller, 26... Elastic brake plate, 27... Lower movement bearing plate, 28... Base, 29... Fixed bearing plate, 33... Latch, 35... Locked Parts, 3
6... Proximity switch, 39... Holder plate, 4
0, 59... Operation lever, 42, 61... Stopper pin, 53, 54... Cam driven roller, 55... Fixed disc-shaped cam, 56, 57... Recessed part, 63... Dancer roller, 64... Drive shaft for winding, 66... Label Transmissive photoelectric switch for detecting the passing of a postcard, 69... Transmissive photoelectric switch for detecting the passage of a postcard, 76... Reflective photoelectric switch for detecting the leading edge of the side edge of a postcard, 77... Transmissive photoelectric switch for detecting the leading edge of the side edge of the label on the postcard. Switch, 7
8... Means for collecting postcards with labels attached, 79... Opening/closing gate for separating and collecting defective postcards, 80... Rotary solenoid, 82... Tray for collection, 85... Belt conveyor, 86... Inclined plate for receiving postcards.

Claims (1)

[Scope of utility model registration request] A knife edge member for label peeling that folds back and moves a band-shaped mount to which labels are releasably pasted at regular intervals on the conveyance path of the labeled object, and a mount tensioner that pulls the folded mount at the tip of the knife edge member. a drive roller for supplying the backing paper to the knife edge member; a drive roller for supplying the backing paper to the knife edge member; and a drive roller for supplying the backing paper to the surface of the object to be labeled on the conveyance path, the label being peeled off from the backing paper folded at the tip of the knife edge member and sent out. A label pressing roller is provided to apply pressure to the label, and each of the drive rollers is provided with a pressing roller, and the circumferential speed of the backing paper tensioning drive roller is set to be slightly higher than the circumferential speed of the backing paper supplying drive roller. Further, the label pasting device is configured such that slipping occurs more easily between the mount supply driving roller and the mount than between the mount tensioning drive roller and the mount.