JP2019195986A - Label separation apparatus - Google Patents

Abstract

To provide a label separation apparatus capable of smoothly conveying plastic containers such as PET bottles while peeling labels.SOLUTION: A rotary shaft 11 is disposed in a cylindrical casing. A plurality of peeling tooth rings 29 having sawteeth 27 on an inner circumferential surface of the casing are installed spaced apart in the shaft direction. Conveying vanes 55 and guide plates 57 are installed on an outer surface 53 of a body part 49 of the rotary shaft 11. The plurality of conveying vanes 55 are installed so as to align in a row in the shaft direction. Each of the conveying vanes 55 is tilted so as to convey introduced PET bottles toward downstream. Each of the guide plates 57 is provided with a guide part 91 positioned between rows of conveying vanes adjacent to each other in the circumferential direction.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a label separating apparatus that removes and separates a label attached to an outer periphery or an outer peripheral surface of a plastic container such as a beverage plastic bottle.

  Plastic containers for beverages use polyethylene terephthalate that has low calories burned and does not contain chlorine, which is the cause of dioxin generation. Product information, etc. can be found on the outer periphery of PET bottles made from such polyethylene terephthalate. Is written and a label with a design is attached. Such a label attached to a PET bottle is a shrink label or a roll label. For example, a stretched PS film is used for the shrink label, and a PP film is used for the roll label. When recycling PET bottles with different labels, the labels must be separated from the PET bottles.

  If such a label is manually removed from the plastic bottle, the work efficiency is not good. For example, a label separating apparatus as described in Patent Document 1 is used. When a plastic bottle is supplied into the cylindrical main body from the supply port using such a label separating device, the fixed needle portion of the cylindrical main body and the rotary blade blade of the polygonal rotating body rotating in the cylindrical main body The label attached to the plastic bottle is peeled off in cooperation with the unit. Further, since the rotary blade blade portion is inclined so as to convey the PET bottle supplied from the supply port into the cylindrical body toward the discharge port, the PET bottle from which the label has been peeled is removed from the cylindrical body. Can be discharged from the outlet and processed.

Japanese Patent No. 4488537

  However, in the label separating apparatus described in Patent Document 1, since the PET bottle is sandwiched between the inner peripheral surface of the cylindrical main body and the outer peripheral surface of the polygonal rotating body, the PET bottle is smoothly conveyed to the discharge port side. The PET bottle is easily clogged between the inner peripheral surface of the cylindrical main body and the outer peripheral surface of the polygonal rotating body, and is constantly rubbed strongly between the inner peripheral surface of the cylindrical main body and the outer peripheral surface of the polygonal rotating body. Therefore, there is a risk of scalding with frictional heat.

  Therefore, an object of the present invention is to provide a label peeling device or a separation device that can smoothly transport a plastic container such as a plastic bottle while peeling the label.

  In order to achieve this object, the label separating apparatus of the present invention is a label separating apparatus that separates a label attached to the outer surface or outer peripheral surface of a plastic container that can be easily crushed or deformed flat, from the plastic container. A casing (for example, a fixed-side casing) having a container supply port for supplying a plastic container with a label and a container discharge port for discharging a plastic container from which a label is separated, and rotating in the casing Conveying extending in the axial direction formed by arranging a plurality of conveying blades (inclined blades or paddles) in the axial direction at each of the rotational shafts arranged in a possible manner and at a plurality of circumferential positions on the outer peripheral surface of the rotating shaft. The rotating shaft is provided between a row of blades and an outer edge portion of the conveying blade and an inner peripheral portion of the casing. A peeling tooth or peeling blade structure that performs a peeling action on the label mounted on the plastic container by rotation, and each of the conveying blades in the row of the conveying blades rotates the rotating shaft. So that the plastic container is inclined toward the outer periphery of the rotating shaft so as to move toward the container discharge port, and the rotating shaft is further positioned between the adjacent rows of the conveying blades. A plastic container sent from one side of the adjacent row of conveying blades is guided to the outer edge side of the guiding member, and passes through the outer edge of the guiding member to be adjacent to the row of conveying blades. It is comprised so that it may be sent to the other side. Here, the peeling teeth or the peeling blade structure that performs the peeling action on the label mounted on the plastic container by the rotation of the rotating shaft is arranged on the outer edge portion or outer end portion of the conveying blade and the inner peripheral portion or inner peripheral surface of the casing. Since it is provided in between, the distance between the outer peripheral surface of the rotating shaft and the inner peripheral surface of the casing can be increased so that the plastic container can move freely or relatively freely. Moreover, since the peeling tooth or peeling blade structure is not continuous long in the circumferential direction, the plastic container is not constantly rubbed or scratched strongly by the peeling tooth or peeling blade structure. The plastic container is, for example, bitten or pulled into the peeling tooth or peeling blade structure. Here, for example, the plastic container bitten or pulled into the peeling tooth or peeling blade structure is held or mainly held on the casing side, and the outer edge of the conveying blade is held or mainly held on the casing side. Pass through the plastic container that is being held.

  By the way, in order to prevent the plastic container from being rubbed or scratched too much by the peeling teeth or the peeling blade structure, it is necessary to form a relatively large space between the rows of the conveying blades. is there. However, if a large space is formed between the rows of conveying blades, the plastic container may stay at the bottom of the space, and smooth conveyance of the plastic container and reliable peeling of the label may be impaired. is there. Therefore, in the present invention, the guide member is provided in the space between the rows of the conveying blades. The guiding member guides a plastic container (including a case where one side of the adjacent conveying blade row passes through the stopped plastic container) sent from one side of the adjacent conveying blade row to the outer edge side of the guiding member. The outer edge of the guide member is allowed to pass through to the other side of the adjacent row of conveying blades (including the case where the outer edge of the guide member passes through the stopped plastic container). Alternatively, the guide member can be configured to guide the plastic container toward the inner peripheral portion or the inner peripheral surface of the casing when the plastic container passes or relatively passes. Therefore, for example, a plastic container that has passed through the row of conveying blades on the front side in the rotational direction is guided by the guide member and guided to the distal end side, the outer end side, or the outer edge side of the guide member, Relatively passes between the outer end portion or the outer edge portion and the inner peripheral portion of the casing and reaches, for example, the outer side or the radially outer side of the row of conveying blades on the rear side in the rotational direction. It is bitten by the peeling teeth or the conveying blade structure or is conveyed toward the container outlet. For example, the guide member provided on the outer peripheral surface of the rotating shaft so as to be positioned between the rows of adjacent conveyance blades prevents the plastic container from staying at the bottom of the space between the rows of adjacent conveyance blades. It can also be defined.

  The peeling tooth or peeling blade structure may have a clearance and be configured to bite or retract a plastic container into the clearance. Here, it is preferable that the clearance is formed so that the front of the rotating shaft in the rotational direction is larger than the rear of the rotational shaft so that the plastic container can be easily guided into the clearance and the label peeling function is not deteriorated. .

  In order to improve the peeling effect of the label, it is preferable to form a peeling blade or a peeling tooth at the tip, outer end or outer edge of the guide member. In addition, each guide member can be formed so as to extend in the axial direction of the rotary shaft, and can be provided so as to protrude from the rotary shaft in the radial direction or substantially in the radial direction of the rotary shaft or the casing.

  The peeling tooth or peeling blade structure can be configured to have peeling teeth or peeling teeth provided on the outer edge of the conveying blade and the inner circumference of the casing, and the peeling teeth or peeling teeth provided on the inner circumference of the casing. The rows can be alternating high and low peel teeth. If comprised in this way, the plastic container bitten by the peeling tooth | gear or peeling blade structure or pulled in can be effectively fastened to the casing side. The peeling teeth or peeling tooth rows provided on the inner peripheral portion of the casing may be arranged in a ring shape in the circumferential direction.

  The guide member of the label separating apparatus of the present invention is a guide for guiding a plastic container provided on a rotary shaft so as to protrude between inner rows of adjacent conveying blades and protrude toward the inner peripheral portion of the casing. It can be a member.

  If the label separation apparatus or label peeling apparatus of this invention is used, a label can be peeled efficiently from a plastic container.

It is a front view of the label separator which concerns on this invention. It is a top view of the label separator which concerns on this invention. It is sectional drawing of the label separator which concerns on this invention. It is a right view of the label separator which concerns on this invention. It is a figure which shows the internal structure of the peeling part of a casing. It is a perspective view of a rotating shaft. It is a perspective view of the rotating shaft which abbreviate | omitted illustration of the induction | guidance | derivation plate. It is a front view of a conveyance blade | wing. It is a figure which shows the row | line | column of the sawtooth of a peeling tooth ring. It is a figure which shows the attachment aspect of a peeling tooth ring. It is a figure which shows the conveyance aspect of the PET bottle in a label separator.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  First, the overall configuration of the label separator according to the present invention will be described with reference to FIGS.

  The label separator 1 (label separation device) is for peeling off a label attached to a plastic bottle mainly for beverages and separating it from the plastic bottle, and a support 5 having legs 3 and this A cylindrical casing 7 supported and fixed by the support 5, a suction device 9 for sucking up the label peeled off from the PET bottle in the casing 7 (see the arrow for the suction direction), and rotatable in the casing 7 The rotary shaft 11 (the main body 49 of the rotary shaft 11 can also be regarded as a rotary shaft) disposed in the rotary shaft 11 and, for example, a hydraulic drive device 13 for driving the rotary shaft 11 to rotate. .

  The fixed casing 7 includes a large-diameter insertion portion 15 at one end in the axial direction, a peeling portion 17 at an intermediate portion in the axial direction, and a discharge portion 19 at the other end in the axial direction. Is formed with a container outlet 21 (see the arrow for the inlet direction), a label outlet 23 is provided above the outlet 19, and a container outlet 25 is formed below the outlet 19 ( The suction device 9 is connected to the label discharge port 23 of the discharge unit 19. A plurality of peeling tooth rings 29 (see FIG. 5) having saw teeth 27 on the inner circumference are attached to the inner peripheral surface of the peeling portion 17 of the casing 7 at intervals in the axial direction. A plurality of drain holes 31 are formed on the side.

  The peeling upper part 33 constituting the upper half of the peeling part 17 of the casing 7 is rotatably connected to the peeling lower part 37 constituting the lower half of the peeling part 17 of the casing 7 by the connecting part 35 and fixed to the peeling lower part 37. By rotating the operating shaft 41 (connecting portion 35) rotatably supported by the supported piece 39 (connecting portion 35), the operating piece 43 (connecting portion 35) fixed to the operating shaft 41 and the peeling upper portion 33 is obtained. ), The peeling upper part 33 is rotated and opened to open the inside of the peeling part 17 (see the phantom line in FIG. 3). Opening due to rotation of the peeling upper portion 33 and closing due to counter rotation are performed by rotation and counter rotation of the operation shaft 41. The rotation and counter rotation of the operation shaft 41 are performed by, for example, an operation arm 47 (extension operation of the hydraulic drive cylinder 45). This is done by swinging the connecting portion 35) up and down. The peeling tooth ring 29 provided on the inner peripheral surface of the peeling portion 17 is divided into two parts, and the respective ring divided bodies are attached to the inner surfaces of the peeling upper part 33 and the peeling lower part 37.

  The rotary shaft 11 includes a main body portion 49 having a square cross section and a rotary shaft portion 51 provided through the main body portion 49 in the axial direction. The main shaft portion 49 has a rectangular shape elongated in the four axial directions. It has a conveyance blade (inclined blade or paddle) 55 and a guide plate 57 (guide member) attached to each of the outer surfaces 53. The rotating shaft 11 has a main body 49 located in the casing 7, and one end and the other end of the rotating shaft 51 are respectively in the axial end wall 59 of the casing 7 or the charging portion 15 and the casing 7 or the discharging portion 19. Passing through bearings 63 and 65 provided on the other end wall 61 in the axial direction, the bearings 67 and 69 are rotatably supported, and one end portion of the rotating shaft portion 51 passing through the bearing 67 is connected to the rotation driving device 13. It is attached to the casing 7 as described above.

  Next, with reference to FIG.6 and FIG.7, the structure of the rotating shaft 11 of the label separator 1 is demonstrated in detail.

  The rotating shaft 11 is composed of a plurality of conveying blades 55 that are attached to the respective rectangular outer surfaces 53 of the main body 49 at the same axial interval so as to form a row in the axial direction. have. The conveying blades 55 in each of the conveying blade rows 71 are thin plate bodies formed in an L-shaped cross section so as to integrally have the attachment portion 73 and the blade main body 75, and the blade main body 75 has a rectangular outer surface. A mounting portion 73 is fixed to the outer surface 53 of the main body portion 49 via a mounting base 77 so as to be inclined in parallel with each other at an angle θ1 with the width direction of 53 (see also FIG. 5). The angle θ1 can be set to, for example, 30 degrees to 40 degrees, and the interval L1 between the blade bodies 75 of the conveying blades 55 adjacent in the axial direction can be set to, for example, 150 mm to 180 mm. The corresponding conveyance blade 55 of each conveyance blade row 71 is disposed at the same axial position of the main body 49 of the rotary shaft 11.

  As shown in detail in FIG. 8, the upper end portion (outer end portion or outer edge portion) 79 of the blade body 75 is curved in an arc shape or a substantially arc shape, and a plurality of right-angled triangular saw teeth 81 protrude from the upper end portion 79. Thus, a saw tooth row 83 (peeling tooth or peeling tooth row) is formed, and each saw tooth 81 has a portion 85 perpendicular or nearly perpendicular to the upper end 79 of the blade body 75 in the rotational direction X (FIG. 5). 6 (see also FIG. 6 and FIG. 9). A vertical or substantially vertical portion 85 of the saw tooth 81 is inclined with respect to the rotation direction X of the rotary shaft 11. The blade body 75 is highest at the center in the width direction, the height H1 at the center in the width direction can be set to, for example, 220 mm to 250 mm, and the width W1 of the transport blade 55 or the blade body 75 can be set to, for example, 290 mm to 330 mm. The attachment portion 73 is provided with four attachment bolt through holes 87. However, the blade body 75 of the conveying blade 55 located at the insertion portion 15 or the 15 insertion portions is formed such that the height H1 at the center in the width direction is as low as 120 mm to 140 mm, for example. Therefore, since the clearance between the sawtooth row 83 of the blade body 75 and the inner peripheral portion of the casing 5 is large at the insertion portion 15 or the 15 insertion portions, the PET bottle charged into the container insertion port 21 is It is prevented that the battery 83 is repelled by the row 83 and is not guided smoothly into the charging portion 15 of the casing 5. The conveyance blade 55 arranged on the other side in the most axial direction is located in the discharge part 19 of the casing 7.

  A guide plate 57 is attached to each outer surface 53 of the main body 49 of the rotating shaft 11 so as to extend the entire length on one end side in the width direction (rotation direction X side). 57 is formed in a cross-sectional shape so as to have an attachment portion 89 and a guide portion 91 (the guide portion 91 can also be regarded as a guide member), and the attachment portion 89 is slightly outward from one end in the width direction of the outer surface 53. It is attached to the main body 49 by being fixed to the outer surface 53 via the mounting base 93 in a protruding state. The guide portion 91 is bent or bent with respect to the mounting portion 89 so as to be inclined in the direction opposite to the rotation direction X of the rotary shaft 11, and the angle θ2 between the mounting portion 89 and the guide portion 91 is approximately 150 degrees. It is set (see FIG. 5). Each guide portion 91 has a distal end or an outer end extending to the same radial position as the distal end side of the blade body 75, and an extension line to the rotating shaft portion 51 side is an axis of the rotating shaft 11 or the rotating shaft portion 51. The tip is formed as a peeling blade that tears, peels off or rubs strongly on the label attached to the PET bottle. However, the introduction portion 15 or the guide portion 91 located at the 15 placement portions is formed to be short in the radial direction corresponding to the blade body 75 having a low height. 91 or the guide plate 57 may be omitted.

  With reference to FIG.9 and FIG.10, the shape of the peeling tooth ring 29 attached to the internal peripheral surface of the peeling part 17 is demonstrated.

  The peeling tooth ring 29 is a ring body formed in a U-shape having a shallow cross section so as to have an annular attachment portion 95 and an annular tooth base portion 97 that is slightly protruded integrally on both sides of the attachment portion 95 in the width direction. 99 and a saw tooth row 101 (peeling teeth or peeling tooth row) composed of a plurality of right-angled triangular saw teeth 27 integrally projectingly formed on the respective tooth bases 97. ing. The saw tooth 27 provided on the tooth base 97 is a saw tooth 81 constituting a saw tooth row 83 of the blade body 75 such that a portion 103 perpendicular or substantially perpendicular to the tooth base 97 faces the rotation direction X of the rotary shaft 11. The sawtooth row 101 is formed by alternately forming the high sawtooth 27 and the low sawtooth 27 side by side. The difference in height between the high sawtooth 27 and the low sawtooth 27 can be 5 mm or approximately 5 mm. A plurality of peeling tooth rings 29 are attached to the inner peripheral surface of the peeling portion 17 by fixing the attachment portions 95 at a constant pitch P1 in the axial direction. The pitch P1 is a tooth of each peeling tooth ring 29. It is equal to the space | interval P2 of the base part 97 or the sawtooth row | line | column 101, Therefore, each sawtooth row | line | column 101 is arrange | positioned inside the peeling part 17 at fixed intervals in the axial direction. The pitch P1 can be set to 40 mm to 60 mm, for example.

  A clearance for biting the plastic bottle is provided between the sawtooth row 101 of the peeling tooth ring 29 and the sawtooth row 83 of the blade body 75. Specifically, the sawtooth row 83 of the blade body 75 is higher than the sawtooth row 101 of the peeling tooth ring 29, and the highest sawtooth 27 and a portion (for example, rearward in the rotational direction) having the narrowest distance (for example, radial spacing). At an interval of approximately 4.5 mm to 6.5 mm (see, for example, L2), an interval of approximately 32 mm to 36 mm (see, for example, L3) at an area having the widest interval (for example, a radial interval) (forward in the rotational direction), and approximately on average It rotates while maintaining an interval of 18 mm to 21 mm (for example, an interval in the radial direction), a low sawtooth 27 and an average interval of about 23 mm to 26 mm (for example, an interval in the radial direction). The leading end of the guide portion 91 is spaced from the high sawtooth 27 by approximately 10 mm to 12 mm (see, for example, radial spacing, see L4), and the low sawtooth 27 is spaced by approximately 15 mm to 17 mm (see, for example, radial spacing, see L5). And rotate (see FIG. 5). Further, the sawtooth row 83 of the blade body 75 is arranged so as to cross a plurality of (for example, three or four) sawtooth rows 101.

  A typical operation mode of the label peeling machine 1 will be described with reference to FIG.

  When the plastic bottle B with the label attached thereto is introduced into the casing 7 from the container insertion port 21, the plastic bottle is disposed, for example, by the conveying blade 55 having a low height disposed on the outer surface 53 of the rotating rotating shaft 11. B is conveyed through the casing 7 to the peeling unit 17. The plastic bottle B that has reached the peeling portion 17 is caught between the sawtooth row 83 of the conveying blade 55 and the sawtooth row 101 (peeling tooth or peeling blade structure) of the peeling tooth ring 29 and flattened (see FIG. 11a) The label attached to the plastic bottle B is torn or cut. Here, the sawtooth row 101 of the peeling tooth ring 29 bites into the plastic bottle B, and the sawtooth row 83 of the conveying blade 55 passes through the plastic bottle B while scratching the plastic bottle B (label attached to the plastic bottle B). . When the sawtooth row 83 of the conveying blade 55 forward in the rotation direction passes, the bite plastic bottle B drops or moves to the main body 49 side of the rotating shaft 11, for example, but hits the guide portion 91 of the guide plate 57. Then, it is guided to the leading end side of the guiding portion 91 and relatively passes between the leading end of the guiding portion 91 and the sawtooth row 101 of the peeling tooth ring 29 (FIG. 11c). Since the leading end of the guiding portion 91 is formed as a peeling blade (for example, having a square or sharp cross section), the PET bottle B is relatively disposed between the leading end of the guiding portion 91 and the sawtooth row 101 of the peeling tooth ring 29. The label is strongly scratched as it passes through. Then, for example, it is guided to the front end side or the outer edge side of the conveying blade 55 in the rearward direction of rotation (FIG. 11d), and the sawtooth row 83 of the conveying blade 55 in the rearward direction of rotation and the sawtooth row 101 of the peeling tooth ring 29 (peeling teeth or (See FIG. 11a) and conveyed downstream.

  The label attached to the PET bottle B is torn between the sawtooth row 83 of the conveying blade 55 or the peeling blade of the guide portion 91 and the sawtooth row 101 of the peeling tooth ring 29, or on the side of the conveying blade 55. It is separated from the plastic bottle B by being cut by hitting the end portion, the sawtooth row 101 of the peeling tooth ring 29 or the guide portion 91 of the guide plate 57. The beverage remaining in the plastic bottle B is discharged from the drain hole 31 of the casing 7. In addition, when the cap is attached to the introduced plastic bottle B, the cap is also destroyed and removed from the plastic bottle B.

  The PET bottle B that has been separated and moved in the casing 7 to the other end in the axial direction is discharged from the container outlet 25, and the label that has been separated from the PET bottle B and moved in the casing 7 to the other end in the axial direction is It is sucked into the suction device 9 from the label discharge port 23 and collected.

1 Label separator (label separator)
7 Casing 11 Rotating shaft 21 Bottle inlet (container supply port)
25 Bottle outlet (container outlet)
49 Main body 55 Transport blade 57 Guide plate (guide member)
71 Row of conveying blades 83 Row of saw teeth (peeling teeth or peeling structure)
91 Guide part (guide member)
101 Sawtooth row (peeling teeth or peeling structure)
B PET bottle (plastic container)

Claims (8)

A label separating device for separating a label attached to an outer surface of a plastic container from the plastic container,
A casing having a container supply port for supplying a plastic container to which a label is attached and a container discharge port for discharging the plastic container from which the label is separated;
A rotating shaft rotatably disposed in the casing;
A row of conveying blades extending in the axial direction formed by arranging a plurality of conveying blades in the axial direction at each of a plurality of circumferential positions on the outer peripheral surface of the rotating shaft;
A peeling tooth or a peeling blade structure provided between the outer edge of the conveying blade and the inner peripheral part of the casing and performing a peeling action on the label mounted on the plastic container by rotation of the rotary shaft; Prepared,
The conveying blades in each of the rows of the conveying blades are provided on the outer peripheral surface of the rotating shaft so as to move the plastic container toward the container discharge port by the rotation of the rotating shaft. ,
The rotating shaft is further provided with a guide member so as to be positioned between the adjacent rows of the conveying blades, and the plastic container sent from one side of the adjacent row of the conveying blades is on the outer edge side of the guiding member. The label separation device is configured to be guided to the other side of the row of the conveying blades adjacent to each other through the outer edge of the guide member.   The label separating apparatus according to claim 1, wherein an outer edge portion of the guide member has a peeling blade or a peeling tooth.   The label separating apparatus according to claim 1, wherein each of the guide members is provided so as to extend in an axial direction of the rotating shaft.   4. The label separating apparatus according to claim 1, wherein each of the guide members is provided so as to protrude from the rotating shaft in a radial direction or a substantially radial direction of the rotating shaft or the casing. .   The peeling tooth or peeling blade structure has a clearance, and is configured to bite or pull the plastic container into the clearance, and the clearance is formed such that the front of the rotating shaft in the rotational direction is larger than the rear in the rotational direction. The label separating apparatus according to claim 1, 2, 3, or 4, wherein   The said peeling tooth or peeling blade structure has the peeling tooth or peeling tooth row | line | column provided in the outer edge part of the said conveyance blade, and the inner peripheral part of the said casing, It is characterized by the above-mentioned. 4. The label separating apparatus according to 4 or 5.   The label separating apparatus according to claim 6, wherein high peeling teeth and low peeling teeth are alternately arranged on the peeling teeth or peeling tooth rows provided on an inner peripheral portion of the casing. A label separating device for separating a label attached to an outer surface of a plastic container from the plastic container,
A casing having a container supply port for supplying a plastic container to which a label is attached and a container discharge port for discharging the plastic container from which the label is separated;
A rotating shaft rotatably disposed in the casing;
A row of conveying blades extending in the axial direction formed by arranging a plurality of conveying blades in the axial direction at each of a plurality of circumferential positions on the outer peripheral surface of the rotating shaft;
A peeling tooth or a peeling blade structure provided between the outer edge of the conveying blade and the inner peripheral part of the casing and performing a peeling action on the label mounted on the plastic container by rotation of the rotary shaft; Prepared,
The conveying blades in each of the rows of the conveying blades are provided on the outer peripheral surface of the rotating shaft so as to move the plastic container toward the container discharge port by the rotation of the rotating shaft. ,
The rotating shaft is further provided with a guiding member for guiding the plastic container, which is located between the adjacent rows of the conveying blades and protrudes toward the inner peripheral portion of the casing. Label separator.

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