JP6545500B2 - Label cutting device - Google Patents

Description

  The present invention relates to a label cutting apparatus for forming a label of a predetermined length while sequentially cutting a long strip-shaped label base material delivered by a base material delivery means, and sequentially supplying the label to the label transport means.

  An example of this type of label cutting apparatus is shown in FIG. As shown in FIG. 11A, the label cutting device 20A includes a fixed blade 21 and a rotary blade 22. The rotary blade 22 is rotationally driven in the arrow direction. As a result, the label substrate M fed downward by the substrate delivery roller (not shown) is cut at the label cutting position C each time the rotary blade 22 makes one rotation, and a label of a predetermined length is formed. It has become.

  A guide plate 61 and wedge-shaped guides 62 and 63 are disposed on the upper side of the label cutting device 20A in order to guide the label base material M conveyed from above toward the label cutting position C. The guide plate 61 and the wedge-shaped guide 62 are disposed on the fixed blade 21 side with respect to the label base M. The guide plate 61 has a plate shape. The wedge-shaped guides 62 are formed of a plurality of round rod-like members, and are arranged at intervals along the surface direction of the label base M (the direction perpendicular to the paper surface of FIG. 11).

  The wedge-shaped guide 63 is installed on the rotary blade 22 side with respect to the label base material M. The wedge-shaped guide 63 is also formed of a plurality of round rod-like members in the same manner as the wedge-shaped guide 62, and is disposed at an interval in the surface direction of the label base material M. Further, the wedge-shaped guide 63 also functions as a nozzle for ejecting air. Thus, the wedge-shaped guide 63 contacts the label base material M conveyed from above and guides it to the label cutting position C, and the air is jetted obliquely downward from the lower end and sprayed onto the label base material M. The label base M is pressed against the wedge-shaped guide 62 and the guide plate 61 on the fixed blade 21 side.

  Below the label cutting device 20A, a transport belt 33 and a guide member 42 constituting a label transfer means are installed. The transport belt 33 transports the label to a predetermined position by rotating in the arrow direction while suctioning and holding the label of a predetermined length cut from the label base material M by the label cutting device 20A on the surface. The upper end portion of the guide member 42 is bent so as to incline toward the rotary blade 22 and guides the cut end portion of the label base material M conveyed downward through the label cutting position C toward the conveyance belt 33 side. The cut end of the label substrate M is reliably held by suction on the transport belt 33.

JP 2013-136388 A

  As shown in FIGS. 11A to 11D, in the label cutting apparatus 20A, after the tip of the rotary blade 22 passes the label cutting position C where the fixed blade 21 faces and the label having a predetermined length is cut, The label substrate M is conveyed downward by the substrate delivery roller. At that time, as shown in FIGS. 11B and 11C, the lower end portion, which is the cut end portion of the label base material M, may be pulled in the rotational direction in a state of being attached to the tip of the rotary blade 22. Thus, the phenomenon that the label base material M sticks to the tip of the rotary blade 22 is presumed to be due to the influence of static electricity or at least any of the negative pressure on the rear side where the tip of the rotary blade 22 passes. Ru.

  As shown in FIG. 11D, the lower end portion of the label substrate M is a guide as shown in FIG. 11D by the rotation of the rotary blade 22 in a state where the lower end portion of the label substrate M is stuck to the tip of the rotary blade 22 as described above. In some cases, the member 42 and the conveyance belt 33 may be warped without being conveyed. As a result, the conveyance and the supply of the label by the conveyance belt 33 are stopped, which leads to the stop of the operation of the downstream device such as the label fitting device to which the label should be supplied.

  Therefore, an object of the present invention is to provide a label cutting device capable of reliably supplying the label transfer means with the cut end of the label substrate which is fed through the label cutting position.

The label cutting apparatus according to the present invention forms a label having a predetermined length while sequentially cutting a long strip-shaped label base material delivered by the base material delivery means, and sequentially supplies the label to the label transfer means. A cutting device, which is provided so as to face a fixed blade fixedly arranged at a label cutting position and the fixed blade at the label cutting position, and cuts a label of a predetermined length from the label substrate every one rotation. A rotary blade, the rotary blade having a rotary shaft rotatably driven and a blade portion attached to the rotary shaft, the rotary shaft being at least a rear side of the blade portion with respect to its rotational direction An air delivery means for delivering air toward the cut end of the label substrate is provided , the air delivery means being a fin fixed to the rotary shaft, and the tip end of the fin Said Wherein the notch for passing the air blown from the upper nozzle toward the bell cutting position is formed.

  In this case, a plurality of the fins may be provided at intervals along the entire circumferential direction of the rotation shaft.

According to the label cutting apparatus of the present invention, the rotary shaft of the rotary blade is provided with an air delivery means for delivering air toward the cutting end of the label substrate at least on the rear side of the blade with respect to the rotational direction thereof. The air delivery means is a fin fixed to the rotary shaft, and the tip of this fin is formed with a notch for passing air blown from the upper nozzle toward the label cutting position. Therefore, the cutting end of the label substrate can be pushed away from the rotary blade by the air delivered by the air delivery means. As a result, it is possible to prevent the label base material from being pulled by the rotation of the rotary blade and warping from the predetermined transport path. Therefore, the formation and supply of the label by the label cutting apparatus can be stably performed.

It is a schematic plan view showing a label covering system provided with a label cutting device which is one embodiment of the present invention. It is a front view showing roughly a label supply device containing a label cutting device. It is a right side view showing roughly a label supply device containing a label cutting device. It is a left side view showing roughly a label supply device containing a label cutting device. It is a side view which expands and shows the rotary blade of a label cutting device. (A)-(c) is a front view and a side view showing a fin attached to a rotary blade of a label cutting device, respectively. It is a figure which shows a mode that the fin shown in FIG. 6 is attached to the rotating shaft of a rotary blade. (A)-(d) is a figure which shows in a step an aspect that the cutting end part of the label base material after cutting | disconnection in a label cutting device is guided to a label transfer means. It is a figure which shows the modification of the fin provided in a rotary blade. It is a figure which shows another example of the air delivery means provided in a rotary blade. (A)-(d) is a figure which shows gradually a mode that the cutting edge part of the label base material after cutting | disconnection is not guided to a label transfer means in the conventional label cutting device.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. In the description, specific shapes, materials, numerical values, directions and the like are exemplifications for facilitating the understanding of the present invention, and can be appropriately changed in accordance with applications, purposes, specifications and the like. In addition, in the case where a plurality of embodiments, modified examples, and the like are included below, it is assumed from the beginning that these characteristic portions are appropriately combined and used.

  FIG. 1 is a schematic plan view showing a label fitting system 1 provided with a label cutting device according to an embodiment of the present invention. As shown in FIG. 1, this label fitting system 1 is a cylindrical shrink label (hereinafter referred to as “a bottle (hereinafter referred to as a bottle) B formed of a heat-shrinkable film made of polyester resin, polystyrene resin or the like. , Label) is fitted. The label fitting system 1 comprises a bottle feeding device 2 comprising a belt conveyor 8, a star wheel 2a, a screw conveyor 2b and a star wheel 2c, and an elongated strip-like label substrate fed from a substrate roll by a substrate feeding device 3. A label L is formed while sequentially cutting M, and the label supply device 4 sequentially supplies the label L to the first label delivery position α, and the label supply device 4 supplies the label L to the first label delivery position α The label delivery device 5 receives the label L and conveys it to the second label delivery position β, and receives the bottle B supplied from the bottle supply device 2 at the bottle supply position γ and conveys it to the bottle delivery position δ The label L conveyed by the device 5 is received at the second label delivery position β, and the bottle B is fed to the bottle supply position γ A rotary type label fitting device 6 for fitting the label L to the bottle B during transport to the bottle delivery position δ and a bottle B for which the label L is fitted by the label fitting device 6 are carried out, star A bottle conveying device 7 comprising a wheel 7 a and a belt conveyor 8 is provided.

  FIG. 2 is a front view schematically showing the label supply device 4 including the label cutting device 20. As shown in FIG. As shown in FIGS. 1 and 2, the label delivery device 5 includes a plurality of take-up members 5a that rotate so as to pass through the first label delivery position α and the second label delivery position β. . In the label delivery device 5, the take-up member 5a receives the label L supplied to the first label delivery position α in a state of being folded into a sheet and delivers the label L to the label fitting device 6. .

  Next, the label feeding device 4 including the label cutting device 20 will be described with reference to FIGS. FIG. 3 is a right side view schematically showing the label supply device 4, and FIG. 4 is a left side view schematically showing the label supply device 4.

  As shown in FIGS. 2 to 4, the label feeding device 4 continuously feeds a long label substrate M fed from the substrate roll by the substrate feeding device 3 (substrate feeding unit (substrate feeding Means) 10, a label cutting device 20 for sequentially cutting the label substrate M delivered by the label substrate delivery unit 10 into a predetermined length, and a label L formed by cutting by the label cutting device 20 An upstream label transport unit (label transport means) 30 and a downstream label transport unit 50 are sequentially transported to the delivery position α. In addition, between the label substrate delivery unit 10 and the label cutting device 20, a label substrate guide unit 60 for guiding the label substrate M delivered by the label substrate delivery unit 10 is disposed.

  The label substrate delivery unit 10 includes a drive roller 11 driven by an independent substrate feed servomotor (not shown) and a driven roller 12 for sandwiching the label substrate M folded in a sheet shape between the drive roller 11 and the drive roller 11. , And four labels for guiding the label base material M, which are disposed facing each other with a minute interval in a state of being fitted to the plurality of circumferential grooves 11a and 12a formed on the outer peripheral surface of the driving roller 11 and the driven roller 12 The pair of left and right wedge-shaped guides 13 and 14 formed of the wedge-shaped members 13a and 14a are provided. In the label base material feeding unit 10, the label base material M sandwiched by the both rollers 11 and 12 is provided with the label cutting device 20 by the rotation of the driving roller 11 while being guided by the pair of wedge-shaped guides 13 and 14. It is delivered to the lower label cutting position C.

  The label cutting apparatus 20 is a rotary cutter constituted by a fixed blade 21 fixedly arranged at the label cutting position C and a rotary blade 22 rotationally driven by an independent substrate cutting servomotor (not shown). Each time the rotary blade 22 makes one rotation, the label base material M which is continuously fed out by the label base material delivery unit 10 is sequentially cut, whereby labels L of a predetermined length are sequentially formed. Further, in the label cutting device 20 of the present embodiment, fins 23 are provided on the rotary blade 22. The details will be described later.

  The upstream label transport unit 30 is disposed between the label cutting position C and the label delivery position α. The upstream label conveying unit 30 is stretched around two guide rollers 31 and a driving pulley 32 which make a pair on the left and right, and circularly moves between the vicinity of the label cutting position C and the vicinity of the label delivery position α. The conveyor belt 33, two tension rollers 34 for applying tension to each conveyor belt 33, a suction mechanism 35 for attracting and holding the label L to each conveyor belt 33, the conveyor belt 33 over the label L from the lower end to the upper end The suction assisting means 37 assists the suction and holding operation of the label L on the transport belt 33 by the suction mechanism by sequentially bringing into close contact with each other. In the upstream label conveyance unit 30, the drive pulley 32 is rotationally driven by an independent upstream belt drive servomotor (not shown).

  The conveying belts 33 are disposed in parallel at intervals narrower than the width of the label L to be conveyed, as shown in FIGS. 2 and 3, and each conveying belt 33 is elongated in the central portion in the width direction. A large number of suction holes (not shown) are formed at regular intervals along the direction.

  Between the two conveyor belts 33, a guide member 42 similar to that described with reference to FIG. 11 is installed. The upper end portion of the guide member 42 is bent so as to incline toward the rotary blade 22 and guides the cut end portion of the label base material M conveyed downward through the label cutting position C toward the conveyance belt 33 side. The cut end of the label substrate M is reliably held by suction on the transport belt 33.

  The suction mechanism 35 includes a pair of suction chambers 36 disposed along the transport belts 33 between the guide rollers 31 and a suction (not shown) such as a vacuum pump connected to the suction chambers 36 via a tube or the like (not shown). It consists of a device. In the suction mechanism 35, a suction port is opened at the contact surface of each suction chamber 36 with the transport belt 33.

  As shown in FIGS. 2 and 4, the suction assisting means 37 includes three guide rollers 38 and drive pulleys 39 provided so as to face the pair of left and right conveyance belts 33 with the conveyance line of the label L interposed therebetween. And two belts 40 wound around them, and two tension rollers 41 for applying tension to the respective belts 40. The drive pulley 39 is driven by a servomotor that circulates the transport belt 33 described above. In the suction assisting means 37, the rotational speed of the drive pulley 39 is set so that the belt 40 circulates at the same speed as the moving speed of the transport belt 33.

  As shown in FIGS. 2 to 4, the downstream-side label conveyance unit 50 is stretched around two guide rollers 51 and drive pulleys 52 disposed vertically in pairs on the left and right sides of the label delivery position α. , And a suction mechanism 54 for suctioning and holding the label L on the conveyance belt 53, and the drive pulley 52 is an independent unit (not shown). It is rotationally driven by a downstream side belt drive servomotor.

  The suction mechanism 54 is disposed in parallel to the inside of the two conveyor belts 53, and each conveyor belt 53 has a large number of suction holes (not shown) along the longitudinal direction at the central portion in the width direction thereof. It is formed at regular intervals.

  Further, the suction mechanism 54 includes a suction chamber 55 disposed along the transport belt 53 between the guide rollers 51, and a suction device (not shown) such as a vacuum pump connected to the suction chamber 55 via a tube or the like (not shown). The suction port is open at the contact surface of the suction chamber 55 with the transport belt 53.

  The label substrate guide unit 60 includes a guide plate 61, a wedge-shaped guide 62, and a wedge-shaped guide 63. The guide plate 61 is wider than the label base material M disposed on the side of the fixed blade 21 in a state in which the lower end edge is positioned so as to be located immediately above the tip of the fixed blade 21 of the label cutting device 20. It is a plate-like member. The wedge-shaped guides 62 are disposed above the guide plate 61, and the lower end portion of the wedge-shaped guides 62 is, for example, four inclined so as to project near the traveling line of the label substrate M delivered by the label substrate delivery unit 10. It comprises a bowl-shaped member 62a. The wedge-shaped guides 63 are disposed on the rotary blade 22 side of the label cutting device 20 in a state of facing the respective wedge-shaped members 62a of the wedge-shaped guides 62 across the traveling line of the label base material M It is composed of four hollow-shaped wedge-shaped members 63a inclined so as to project to the vicinity of the traveling line of the label base material M. In the label base material guide unit 60, the label base material M delivered by the label base material delivery unit 10 includes the lower end portions of the respective wedge shaped members 62a of the wedge shaped guide 62 and the respective wedge shaped members 63a of the wedge shaped guide 63. It is sent out to the label cutting device 20 side through a minute gap with the lower end of the

  Moreover, the wedge-shaped member 63a which comprises the wedge-shaped guide 63 is connected to the air supply means which a compressor etc. does not show in figure, The rotary blade toward the label cutting position C from the lower end opening of the wedge-shaped member 63a It also functions as a nozzle that blows air obliquely from above on the 22 side.

  The label substrate M is stabilized in the label cutting device 20 by the label substrate M being fed toward the label cutting device 20 while being guided by the guide plate 61 and the wedge-shaped guides 62 and 63 on both sides as described above. Can be supplied. In addition, by blowing air from the wedge-shaped guide 63, it can be assisted that the cut end portion of the label base material M is not pulled toward the rotary blade 22 when being fed downward.

  Next, the label cutting device 20 of the present embodiment will be described with reference to FIGS. 5 to 8. FIG. 5 is a side view showing the rotary blade 22 of the label cutting device 20 in an enlarged manner. 6A to 6C are a front view and a side view showing the fins 23a, 23b, 23c attached to the rotary blade 22 of the label cutting device 20, respectively. Furthermore, FIG. 7 is a figure which shows a mode that fins 23a, 23b, 23c shown in FIG. 6 are attached to the rotating shaft 22a of the rotary blade 22. As shown in FIG.

  As described above, the label cutting device 20 is a rotary cutter provided with a fixed blade 21 and a rotary blade 22 as described above. The rotary blade 22 of the label cutting device 20 according to the present embodiment includes a rotary shaft 22a rotationally driven by a substrate cutting servomotor (not shown), a plate-like blade 22b fixed to the rotary shaft 22a, and a rotary shaft 22a. And a fin (or blade) 23 attached so as to project in a substantially radial direction on the outer peripheral surface of Both ends of the blade portion 22b are fixed so as to protrude to the outer peripheral side of the rotation shaft 22a.

  In the present embodiment, in the rotary blade 22, a plurality of fins 23 are disposed circumferentially at intervals along substantially the entire outer peripheral surface of the rotary shaft 22 a. More specifically, six fins 23a, 23b, and 23c are fixed to the rotary blade 22 by bolts 25 on the rear side of the tip end portion 29 of the blade portion 22b in the direction of rotation indicated by the arrow D direction. Further, six fins 23a, 23b and 23c are fixed to the rotary blade 22 by bolts 25 also on the front side of the tip end portion 29 of the blade portion 22b in the rotation direction shown by the arrow D direction. That is, a total of 12 fins 23a, 23b and 23c are provided on the rotary blade 22 over substantially the entire circumference of the rotary shaft 22a.

  FIGS. 6 and 7 show that six fins 23a, 23b, 23c are attached to the rear half of the rotary shaft 22a of the rotary blade 22. As shown in FIG. Each two fins 23a, 23b, 23c have a shape in which they are connected by arc-shaped connecting portions 24a, 24b, 24c, and are formed in the through holes 26 respectively formed in the connecting portions 24a, 24b, 24c. The bolt 25 is fastened and fixed to a female screw hole formed in the rotating shaft 22a. Such fins 23a, 23b, 23c and the connecting portions 24a, 24b, 24c can be formed, for example, by bending a metal plate. By fastening and fixing the fins 23a, 23b and 23c to the rotary shaft 22a with the bolt 25 in this manner, the fins do not come off and fly while the rotary blade 22 is rotating, as compared to the case of welding and fixing.

  Further, four rectangular notches 23d are formed at intervals at the tip of each of the fins 23a, 23b, 23c. These notches 23 d are for flowing to the label cutting position C without blocking the air blown out from the bowl-shaped member 63 a constituting the bowl-shaped guide 63 described above. As a result, even when the rotary blade 22 is rotating, air is blown from the wedge-shaped guide 63 to the cut end of the label base M through the notches 23d of the fins 23a, 23b, 23c, so the label base When M is fed downward from the label cutting position C, the function of pressing the cutting end portion to the fixed blade 21 side, that is, the function of assisting to prevent the cutting end portion from being pulled to the rotary blade 22 side can be maintained.

  In addition, although FIG. 6 and FIG. 7 demonstrated fin 23a, 23b, 23c for half-circles of the rotary blade 22, it is comprised similarly about the remaining half-circles.

  Then, with reference to FIG. 8, the effect | action of the rotary blade 22 of the label cutting device 20 which consists of the said structure is demonstrated. 8 (a) to 8 (d) are diagrams showing in a step-by-step manner that the cut end of the label base material M after being cut in the label cutting device 20 is guided to the upstream label conveying unit 30. FIG. FIG. 8 (a) shows the position when the blade 22b of the rotary blade 22 is in a posture along the horizontal direction and cuts the label substrate M, and FIGS. 8 (b), (c) and (d) show the positions. The state which the rotary blade 22 rotated by 30 degrees, 60 degrees, and 90 degrees from the state of Fig.8 (a) is shown.

  In the state shown in FIG. 8A, the tip end of the blade portion 22b of the rotary blade 22 approaches the fixed blade 21 and cuts a label L (not shown) of a predetermined length from the label base material M. The label L of a predetermined length separated from the label base material M by this cutting is transported according to the rotation of the transport belt 33 since the lower end portion is already in a state of being sucked and held by the transport belt 33.

  After the label L is cut, as shown in FIGS. 8B to 8D, the rotary blade 22 continues to rotate, and the cut end of the label base M is delivered by the label base delivery unit 10. Here, the rotation speed of the rotary blade 22 is high speed, and is set to, for example, 500 rotations per minute. Since the rotary blade 22 rotates at such a high speed, air is sent radially outward by the fins 23 attached to the rotary blade 22. By the air flow generated in this way, the cut end of the label substrate M delivered downward from the label cutting position C moves downward while maintaining the state of being pushed toward the fixed blade 21 side. Therefore, it can be effectively suppressed by a simple configuration that the cut end portion of the label base material M is pulled by the rotary blade 22 and warped from the transport path. As a result, it is possible to eliminate or reduce the case where the label base material M is clogged at the label cutting device 20 and the label fitting system 1 stops operating.

  The present invention is not limited to the above-described embodiment and the modifications thereof, and various modifications and improvements can be made within the scope of the matters described in the claims of the present application and the equivalents thereof.

  In the above, although the example which provides fin 23a, 23b, 23c over substantially the perimeter of the rotating shaft 22a of the rotary blade 22 was demonstrated, it is not limited to this. For example, as shown in FIG. 9, only one fin 23 may be attached to the rear side of the tip end portion 29 of the blade portion 22 b in the rotation direction (arrow D direction) of the rotary blade 22. Even in this case, for example, in the case of a label base whose film thickness is as thin as about 20 μm and a label base made of a material that is not easily charged with static electricity, it passes through the label cutting position C at high speed after label cutting. By being pushed by the air flow generated by one fin 23, the cut end of the label base M is less likely to be stuck to the tip end 29 of the blade 22b of the rotary blade 22, and clogging of the label base M is suppressed and stabilized. Label cutting operation can be performed. Also, depending on the rotation speed of the rotary blade 22, the material of the label base material M, etc., as shown in FIGS. 6 and 7, the rotary blade 22 is located on the rear side in the rotational direction of the tip 29 of the blade 22b. A plurality of fins 23 may be arranged only for a half turn. Similar effects can be expected in this case as well.

  Moreover, in the above, although it demonstrated that the notch part 23d is formed in the front-end | tip part of each fin 23, it is not limited to this. In the case where it is possible to prevent the cut end of the label substrate M from being pulled by the rotary blade 22 only by the air flow generated by the fins 23, the tip of the fins 23 is parallel to the rotation shaft 22a without forming the cutouts 23d. May have a straight edge.

  Furthermore, in the above, the fins 23 are provided on the rotary blade 22 to constitute the air delivery means, but instead of this, as shown in FIG. 10, the rotary shaft 22c of the rotary blade 22 is formed of a cylindrical member A hole 28 communicating with the internal space 27 is formed on the surface of the surface 22, and a structure for blowing out air supplied from the air supply source (not shown) to the internal space 27 of the rotary shaft 22c from the hole 28 is used as an air delivery means. Good. Also in this case, the cut end of the label substrate M is pushed toward the fixed blade 21 by the air flow blown out from the rotary shaft 22c of the rotary blade 22, so that the same operation and effect as described above can be achieved. In addition, such a configuration in which the air is blown out from the blowout holes 28 of the rotary blade 22 may be used in combination with the fins 23 described above. Although FIG. 10 shows an example in which the blowout holes 28 are formed at intervals in the circumferential direction of the rotary shaft 22c, the rotational direction rear of the tip end portion 29 of the blade portion 22b is the same as shown in FIG. At least one (plurally arranged in the axial direction) may be formed on the side, or the blowout hole 28 may be formed only in the half circumferential portion of the rotation shaft 22c located on the rear side in the rotational direction of the tip 29 of the blade 22b. A plurality of may be formed.

  Furthermore, in the embodiment described above, the label cutting device 20 used in the label feeding device 4 mounted in the label fitting system 1 for fitting the cylindrical label L to the barrel or cap of the bottle B Although described above, the present invention is not limited to this, and the present invention can be applied to various label processing systems in which it is necessary to supply a sheet-like label at a predetermined position at a predetermined timing.

  DESCRIPTION OF SYMBOLS 1 label covering system, 2 bottle supply apparatus, 2a, 2c, 7a star wheel, 2b screw conveyor, 3 base material delivery apparatus, 4 label supply apparatus, 5 label delivery apparatus, 5a take-up member, 6 label covering apparatus, Reference Signs List 7 bottle conveying device, 8 belt conveyor, 10 label base material feeding unit, 11 driving roller, 11a, 12a circumferential groove, 12 driven roller, 13, 14, 62, 63 wedge-shaped guide, 13a, 14a, 62a, 63a wedge-shaped Members, 20, 20A label cutting device, 21 fixed blade, 22 rotary blade, 22a, 22c rotary shaft, 22b blade part, 23, 23a, 23b, 23c fin, 23d notch part, 24a, 24b, 24c connection part, 25 bolt , 26 through holes, 27 internal space, 28 blow holes, 29 (of the blade), tip 30 Side label conveyance unit 31, 51 guide roller 32, 32, 52 drive pulley, 33, 53 conveyance belt, 34 tension roller, 35, 54 suction mechanism, 36, 55 suction chamber, 37 suction auxiliary means, 38 guide roller, 40 belt, 41 tension roller, 42 guide member, 50 downstream label conveyance unit, 60 label substrate guide unit, 61 guide plate, B bottle, C label cutting position, L label, M label substrate, α label delivery position, β label delivery position, γ bottle supply position, δ bottle delivery position.

Claims (1)

A label cutting apparatus for forming a label of a predetermined length while sequentially cutting a long strip-shaped label substrate delivered by a substrate delivery unit, and sequentially feeding the label to the label transfer unit,
A fixed blade fixedly arranged at the label cutting position;
And a rotary blade provided opposite to the fixed blade at the label cutting position and cutting a label of a predetermined length from the label base material each time it rotates.
The rotary blade has a rotary shaft that is driven to rotate, and a blade portion attached to the rotary shaft, and the rotary shaft is at least on the rear side of the blade portion with respect to its rotational direction, An air delivery means is provided for delivering air towards the cutting end ,
The air delivery means is a fin fixed to the rotary shaft, and a tip of the fin is formed with a notch for passing air blown from an upper nozzle toward the label cutting position. Label cutting device characterized by.

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