KR20210049460A - PET bottle Label attachment method and device - Google Patents

Abstract

The present invention relates to a PET bottle labeling method and device. In accordance with the present invention, the PET bottle labeling device comprises: a central rotating shaft for repeating operation of stopping for a while after receiving rotational force from an external source and rotating at a certain angle; a rotating cylindrical body installed to surround the central rotating shaft and repeating operation of stopping for a while after rotating at a certain angle in the same manner as the central rotating shaft; a plurality of operation openings which are opened at regular angular intervals in the rotating cylindrical body; a plurality of PET bottle support molds configured to perform rotating and stopping operations in the same manner as the rotating cylindrical body, and having a semi-circular support groove formed inside the rotating cylindrical body to support a middle portion of a PET bottle; a plurality of one side and the other side operating arms configured to repeat operation of wrapping and releasing the outer periphery of a middle portion of a PET bottle closely supported in the semi-circular support groove of the plurality of PET bottle support molds, and configured to be supported to be able to rotate on each of a plurality of support shafts repeating operation of rotating and stopping in the same manner as the rotating cylindrical body; a plurality of cylinders configured to repeat operation of rotating and stopping in the same manner as the rotating cylindrical body in a state radially formed inside the rotating cylindrical body, and to repeat rotation operation of holding or releasing each of the one side and the other side operating arms to wrap the PET bottle with the support shaft as a rotation starting point; and a PET bottle supply rotor formed in a state engaged with one side of the rotating cylindrical body.

Description

PET bottle label attachment method and device

The present invention relates to a method and apparatus for attaching a PET bottle label, and more particularly, a label is directly attached to the outer periphery of the PET bottle by welding both ends of the label film while the label film to be attached to the PET bottle is wound around the outer periphery of the PET bottle. The present invention relates to a method and apparatus for attaching a label that allows the label film to be easily removed from the PET bottle when the PET bottle is to be recycled by allowing both ends of the label film to be attached to each other.

In general, various beverages such as mineral water and makgeolli are sold in PET bottles, and a label indicating the name of the company that produces beverages and makgeolli and ingredients such as beverages is attached to the plastic bottles containing various beverages and makgeolli. . Therefore, after the contents of the PET bottle have been consumed, they are not treated as general waste, but are separately collected and treated so that they can be recycled.

However, in the case of a conventional PET bottle for separate collection so that the contents can be recycled after the contents are finished, the PET bottle cannot be recycled if the bottle is separated and collected without removing the label attached to the bottle. This is because the label film attached to the PET bottle is directly attached to the outer periphery of the PET bottle by a glue made of a material other than a synthetic resin material, so the PET bottle cannot be recycled without removing the glue for attaching the label to the PET bottle.

As an example, in the prior art of Korean Patent Registration No. 10-0339632, a container adhesive layer attached directly to the outer circumference of a PET bottle is formed on one end of a label attached to the outer circumference of a PET bottle, and the label adhesive layer formed on the other end is formed on the outer circumference of a PET bottle. It is configured to be attached while covering one end of the attached label. Therefore, the above prior art is configured so that the label attached to the PET bottle is directly attached to the outer circumference of the PET bottle by the container adhesive layer formed at one end. Since it becomes difficult to recycle, the label must be removed from the PET bottle, but it has been pointed out as a problem that a person who separates and collects the PET bottle separates and collects the label without removing the label because it is very difficult to remove the label.

Registered Patent Publication No. 10-0339632 (2002. 05. 23. Announcement) Registered Patent Publication No. 10-0987150 (2010. 10. 05. Announcement)

The present invention has been proposed in consideration of all the problems encountered in the prior art as described above, as a means of welding the labels so that the labels attached to the PET bottles are not attached to the outer circumference of the PET bottles, but the both ends of the label film are thermally bonded to each other, thereby rehabilitation For the purpose of this, it was invented for the purpose of providing a method and apparatus for increasing the recycling rate of the separated and collected PET bottles by allowing only the label attached to the outer circumference of the PET bottle to be easily removed when collected separately.

The present invention is a means for pursuing the above object,

The labeling method of the present invention,

In the method of attaching a label film to surround the outer circumference of a PET bottle,

A label film is attached to surround the outer circumference of the PET bottle, and the label film is welded so that the overlapping portions are thermally bonded to each other in a state in which both ends of the label film are installed so as to overlap each other while surrounding the outer circumference of the PET bottle.

The label attaching device of the present invention,

A central rotation shaft configured to repeatedly repeat an operation of stopping for a while after receiving a rotational force from the outside and rotating at a predetermined angle;

A rotating cylindrical body installed in a state surrounding the central rotating shaft and repeatedly repeating an operation of stopping for a while after rotating at a certain angle like the central rotating shaft;

A plurality of operation openings that are opened in the rotating cylindrical body at regular intervals;

A plurality of PET bottle holders, which are configured to perform rotation and stop operations like the rotary cylinder, and are formed inside the rotary cylinder and have semicircular support grooves for supporting an intermediate portion of the plastic bottle;

It is configured to repeat the operation of wrapping and releasing the outer circumference of the middle portion of the PET bottle closely supported in the semicircular support groove of the plurality of PET bottle holders, and each of a plurality of support shafts repeating the operation of rotating and stopping like the rotating cylinder body A plurality of one side and the other side operating arms configured to be rotatably supported on the;

A rotational operation in which rotation and stopping operation is repeated like a rotating cylinder in a state formed radially inside the rotating cylinder, and holding or releasing each of the one and the other operation arms to surround the PET bottle with the support shaft as a rotation starting point. A plurality of cylinders configured to repeat; And

A PET bottle supply rotating body formed in a state engaged with one side of the rotating cylinder and having a plurality of supply openings formed at predetermined angles so as to supply one PET bottle to each of the plurality of operating openings formed in the rotating cylindrical body;

It characterized in that it is configured to include.

In addition, the rotating cylinder is characterized in that it is configured to be divided into a label film insertion position, a PET bottle insertion position, and a label film welding position, each of the plurality of operation openings around a central axis of rotation.

In addition, between the label film welding position and the label film insertion position separately formed on the rotating cylinder, a label supply roll having a movable cutting blade for cutting after supplying the label film to the outer periphery of the rotating cylinder in a certain length is formed. It characterized in that it is configured to be formed.

In addition, a label insertion mold for inserting the label film into a semi-circular support groove of a plastic bottle holder and a mold operating cylinder for operating it in and out are formed at the label film insertion position separately formed in the rotating cylinder.

In addition, the plurality of PET bottle holder molds are characterized in that a plurality of vacuum suction holes are formed to fix the label film inserted into the semicircular support groove by the label insertion mold by vacuum pressure.

In addition, a plurality of front and rear vacuum suction holes are formed in front and rear of each of the plurality of operation openings formed at a predetermined angle in the rotating cylinder so that the label film can be adsorbed and fixed by vacuum pressure.

In addition, a plurality of suction holes are formed at the center of the label insertion mold so as to suck and hold a plurality of label films under vacuum pressure.

In addition, at the welding position of the label film that is separately formed on the rotating cylinder, the label film overlapping each other while being attached to the outer circumference of the middle part of the PET bottle by the one and the other operating arms in the state inserted into the semicircular support groove of the plastic bottle holder. It characterized in that it is configured to form a welding device for thermally bonding both ends of the and a welding cylinder for operating the appearance.

In addition, each of the plurality of supply openings formed on the PET bottle supply rotating body is provided with a plurality of bottle supply molds in which a bottle supply cylinder for supplying one PET bottle to a PET bottle insertion position separately formed in the rotating cylinder is formed. It characterized in that it is configured.

According to the present invention, the label film attached to the outer circumference of the PET bottle is constructed so that both ends of the label film installed so as to surround the outer circumference of the middle part of the PET bottle overlap each other, and are attached to each other by means of welding the label film to each other, thereby recycling PET bottles It has the effect of allowing the label film to be easily removed from the outer periphery of the PET bottle so that the entire amount of the separately collected PET bottle can be recycled.In addition, the plastic bottle is inserted into each of the plurality of operating arms on one side and the other side formed at regular intervals on the rotating cylinder. The label film is directly welded to the PET bottle or glass bottle by winding both ends of the label film attached to the outer circumference of the middle part of the PET bottle so that they overlap each other, and then welding the two ends of the label film overlapping each other at the label film welding position in a heat bonded state. Since the label film can be attached without being attached to the outer periphery, when recycling PET bottles and glass bottles, the label film can be easily removed, thereby increasing the recycling efficiency of PET bottles and glass bottles.

1 is a plan configuration diagram showing an installation state of a rotating cylinder and a PET bottle supply rotating body for explaining the present invention,
2 and 3 are front views of a PET bottle showing an embodiment of a welding structure in a state in which both ends of a label film attached to the outer circumference of a PET bottle are welded by the labeling method of the present invention,
4 is a cross-sectional view taken along line AA of FIG. 2,
5 is a plan view illustrating that when a label film is attached to the outer circumference of a middle portion of a PET bottle by the label attaching method of the present invention, both ends of the label film are attached to overlap each other.
6 is a plan view showing the operation of supplying the label film and the PET bottle to each of the label film insertion position and the PET bottle insertion position separately formed on the rotating cylinder of the present invention,
7 is a plan view showing a state in which a label film and a PET bottle are supplied to each of a plurality of operating openings formed at a predetermined angle in the rotating cylinder of the present invention, and a welding operation state of the label film attached to the PET bottle.
FIG. 8 is an operational state diagram of a label insertion mold in which the insertion operation of the label film is completed, a bottle supply mold in which the insertion operation of a PET bottle is completed, and a welding device that has completed the welding operation of the label film,
9 is a diagram illustrating the operation of one side and the other side operating arms at each of the label film insertion position, the PET bottle insertion position, and the label film welding position when the rotating cylinder of the present invention is rotated at a certain angle after stopping for a while.
Fig. 10 is a perspective view of a bottle-shaped metal mold formed at a certain angle on the rotating cylinder of the present invention.

A specific embodiment of a method and apparatus for attaching a PET bottle label according to the present invention will be described in detail with reference to the accompanying drawings.

Reference numeral 1 denotes a rotating cylindrical body, which rotates at a certain angle by receiving a rotational force from the outside at the center of the rotating cylindrical body 1, then stops for a while (approximately 1 to 5 seconds or more), and then rotates again. A central rotation shaft 10 that repeats the operation repeatedly is formed, and the rotation cylindrical body 1 is configured to rotate by receiving a rotational force from the central rotation shaft 10, so that the rotation cylindrical body 1 is also a central rotation shaft 10. It is configured to rotate a certain angle, stop for a while, and then repeat the operation of rotating a certain angle again.

The rotating cylindrical body 1 is formed in a structure with a certain thickness and an empty inside (see Fig. 1), and the outer periphery of the rotating cylindrical body 1 is at a certain angle (for example, about 120 degrees). A plurality of operating openings (2a) (2b) (2c) are formed at intervals of, and inside each of the plurality of operating openings (2a) (2b) and (2c), a plurality of bottle caps (3a) (3b) (3c) is formed one by one.

Each of the plurality of bottle paper molds (3a) (3b) (3c) has _{a semicircular support groove (31) for supporting the middle portion (P 1} ) of the PET bottle (P), each operating opening (2a) (2b) (2c). ), and a plurality of vacuum adsorption holes in the central portion and both edge portions of the semicircular support grooves 31 of each of the plurality of bottle plate molds 3a, 3b, and 3c. 32) is formed (see Fig. 10).

In addition, a plurality of vacuum adsorption holes 32 formed at regular intervals in the center portion and both edges of the semicircular support groove 31 in each of the plurality of bottle paper molds 3a, 3b, and 3c A vacuum suction passage 33 is formed, and the plurality of vacuum suction passages 33 formed in the plurality of bottle plate molds 3a, 3b, and 3c are provided with each bottle plate mold 3a ( 3b) (3c) is configured to be capable of generating a vacuum pressure by a vacuum motor (not shown) even in a state in which the rotating cylinder 1 rotates at a certain angle and stops for a while.

_{The rotating cylinder (1) has a label film insertion position (S 1} ), a PET bottle insertion position (S ₂ ), and a label film welding position (S ₃ ) at 120° intervals on the drawing based on the center of the central rotation axis 10. Each of the plurality of bottle molds (3a) (3b) and (3c) formed separately and formed at a certain angle on the rotating cylinder (1) has a label film insertion position (S ₁ ) and a PET bottle insertion position (S _{2 ).} ) And the operation of inserting the label film 4 cut to a certain length at each of the angular positions of the label film welding position (S ₃ ), the operation of inserting one PET bottle (P), and the middle part of one PET bottle (P) It is configured to perform a welding operation of welding both ends of the label film 4 attached to.

To this end, at the label film insertion position (S ₁ ) of the rotating cylindrical body (1), the piston rod (symbol) of the mold operating cylinder (5a) formed at a position spaced apart from the outer periphery of the rotating cylindrical body (1) Omitted), a label insertion mold 51 for inserting the label film 4 into the semicircular support groove 31 formed in each of the bottle paper molds 3a, 3b, and 3c is formed, and the rotation _{At the welding position (S 3} ) of the label film of the cylindrical body (1), the middle part of the PET bottle (P) inserted into the semicircular support groove (31) formed in each of the bottle caps (3a) (3b) (3c) ( A welding device 5c for welding only portions 41 and 42 of the label film 4 attached to P ₁ ) by thermal bonding is formed on the piston rod (not shown) of the welding cylinder 52.

And on one side of the rotating cylinder 1 (refer to the lower part on the drawing), a PET bottle supply rotating body 5b rotating in a counterclockwise direction opposite to the clockwise direction in which the rotating cylinder 1 rotates is formed. In the PET bottle supply rotating body 5b, a plurality of supply openings 53 are formed at approximately 120° intervals, and a bottle supply cylinder 54 is formed at each of the plurality of supply openings 53, The bottle feeding mold 55, which is formed one by one on each piston rod (not shown), of the bottle feeding cylinder 54 _{is holding the middle part (P 1} ) of the PET bottle (P) and rotating and transferring the rotating cylinder body (1). It is configured to be inserted one by one into the semicircular support groove 31 formed in each of the bottle molds (3a) (3b) and (3c) that are rotated and transferred in turn to the PET bottle insertion position (S _{2 ).}

The inside of the rotating cylinder (1) is a plastic bottle (P) that is inserted one by one into the semicircular support groove (31) formed in each of a plurality of bottle molds (3a) (3b) (3c) formed at a certain angle. The middle part (P ₁ ) is formed with a plurality of one side and the other side operating arms (6a) (6b) configured to hold the outer periphery, rotate, and release, and the plurality of one side and the other side operating arms (6a) (6b) are each It is rotatably connected to a plurality of support shafts 7a, 7b, 7c each formed on the opposite side of the semicircular support groove 31 formed in the plurality of diaphragm molds 3a, 3b, and 3c.

In addition, each of the plurality of one side and the other side operating arms (6a) (6b) is at the tip of the piston rod (not shown) of the plurality of pairs of cylinders (8a) (8b) radially formed around the central rotation shaft (10). Each of the plurality of pairs of cylinders (8a) (8b) rotates the support shafts (7a) (7b) (7c) by a plurality of operating arms (6a) (6b) on one side and the other side due to the protruding operation of the piston rod. To repeat the operation of holding or releasing the outer periphery _{of the middle part (P 1} ) of the PET bottle (P) inserted one by one into the semicircular support grooves (31) of each bottle mold (3a) (3b) (3c) while rotating to the starting point. Consists of.

On the other hand, the label supply roll 9 is rotatable on the outer periphery of the rotating cylinder ₁ between the label film welding position (S ₃ ) and the label film insertion position (S 1) formed separately on the rotating cylinder 1 The label supply roll 9 is provided with a movable cutting blade 92 for intermittently cutting the label film 4 supplied from the label bobbin 91 by a predetermined length, and the label supply roll On one side (upper side of the drawing) of (9), a fixed cutting blade 93, which helps the movable cutting blade 92 to cut the label film 4, is fixedly installed.

Therefore, the label film 4 supplied from the label bobbin 91 side to the label supply roll 9 is fixed by a movable cutting blade 92 and a fixed cutting blade 93 rotating together with the label supply roll 9. It is configured to be continuously supplied to the outer periphery of the rotating cylindrical body 1 while being cut to length.

In addition, a plurality of front and rear vacuum suction holes 11 and 12 are formed in the front and rear of each of the plurality of operation openings 2a, 2b and 2c formed at a certain angle in the rotating cylinder 1 It is formed at intervals, and the plurality of front and rear vacuum adsorption holes 11 and 12 are configured to generate vacuum pressure by a vacuum motor not shown in the drawing, so the plurality of front and rear vacuum adsorption holes (11) (12) are configured to vacuum-adsorb both ends 41 and 42 of the label film 4, which are cut to a predetermined length and supplied to each of the plurality of operating openings 2a, 2b, and 2c. . Therefore, the label film 4 supplied to the outer periphery of the rotating cylinder 1 has both ends 41 and 42 formed at the front and rear of the plurality of operation openings 2a, 2b, 2c, respectively. It is possible to be accurately transported in a vacuum-adsorbed state by the front and rear vacuum adsorption holes 11 and 12.

The strength of the vacuum pressure acting in the front and rear vacuum suction holes 11 and 12 formed at the front and rear of each of the plurality of operation openings 2a, 2b, and 2c is at the label film insertion position (S ₁ ). In order to insert the label film 4 into the semicircular support groove 31 of the bottle paper mold (3a), it emerges from the mold operating cylinder (5a) to insert the label film 4 into the semicircular support groove of the bottle paper mold (3a). (31) It is configured to maintain a state weaker than the insertion pressure of the label insertion mold 51 to be inserted into it, and is formed in the front and rear of _{the PET bottle insertion position (S 2) formed separately in the rotating cylinder (1).} Compared to the vacuum pressure acting on the plurality of front and rear vacuum suction holes 11 and 12, one and the other operating arms 6a and 6b rotate both ends 41 and 42 of the label film 4 It is configured so that the force to be removed from the outer periphery of the sieve (1) is stronger.

Therefore, one side and the other side operating arms (6a) (6b) formed in the PET bottle insertion position (S ₂ ) are the outer circumference of the rotating cylinder body (1) by the vacuum adsorption action of the front and rear vacuum suction holes (11, 12). The both ends 41 and 42 of the label film 4 adhered in close contact with each other can be removed from the outer periphery of the rotating cylinder 1 and attached in a state overlapping the outer periphery of the PET bottle (P).

In addition, a plurality of suction holes 51a are formed at regular intervals in the central portion of the label insertion mold 51, and the plurality of suction holes 51a are formed by the label insertion mold 51 through the label film 4 When inserted into the semicircular support groove 31 formed in each of the support molds 2a, 2b, and 2c, vacuum pressure is generated so that the label film 4 is vacuum-adsorbed to the label insertion mold 51. It can be accurately inserted into the semicircular support groove (31).

And the welding device (5c) that is installed to appear and move by the welding cylinder 52 _{at the label film welding position (S 3} ) formed on the rotating cylinder (1) is _{the middle part (P 1} ) of the PET bottle (P). It is configured to be welded in a state of heat bonding only portions of both ends 41 and 42 of the label film 4 attached to overlap while being wrapped.

On the other hand, a PET bottle supply line 100 for supplying PET bottles one by one is formed on one side of the PET bottle supply rotating body 5b, and on one side of the rotating cylinder 1 (refer to the upper left part of the drawing) The PET bottle discharge line 200 is formed to discharge the PET bottle P with the label film 4 attached to only the both ends 41 and 42 by the welding device 5c at the label film welding position (S _{3 ).} Has been.

The rotating cylinder 1 of the present invention configured as described above is the label film in attaching the label film 4 to the outer periphery of _{the middle part (P 1} ) of the PET bottle P supplied one by one from the PET bottle supply rotating body 5b. _{(4) When wrapping the middle part (P 1} ) of this PET bottle (P), make the both ends 41 and 42 overlap each other, and then both ends 41 and 42 of the label film 4 overlapped with each other. 42) An operation state in which the label film 4 cut to a certain length is supplied to the rotating cylinder 1 and the PET bottle (P) are supplied one by one in turn. It will be described as an exemplary embodiment of FIGS. 6 to 9 showing the state and the operation state of welding the label film 4 surrounding the middle part (P _{1) of the PET bottle (P).}

First, the illustration of FIG. 1 is a plan configuration diagram of the rotating cylinder 1, at this time, since the rotating cylinder 1 is in an inactive state, the label film insertion position (S ₁ ), the PET bottle insertion position (S ₂₎ ), the label film welding position (S ₃ ), the label film 4 and the PET bottle (P) are not supplied, and the piston rod of each of the plurality of cylinders 8a and 8b is immersed (retreat). Since the operation) is in a state, each of the plurality of one and the other operation arms 6a and 6b maintains an open state.

When the rotating cylinder 1 performs the operation of attaching the label film 4 to the PET bottle P, the label supply roll 9 cuts the label film 4 to a predetermined length to insert the label film. _{It is supplied to the outer periphery of the rotating cylinder (1} ) of (S 1 ), and the PET bottle (P) is supplied one by one in the PET bottle supply rotating body (5b), so one PET bottle (P) is _{placed at the PET bottle insertion position (S 2 ).} It is supplied, and at the label film welding position (S ₃ ), both ends 41 and 42 of the label film 4 are welded. At this time, the rotating cylinder 1 is rotated by a certain angle in the clockwise direction. The plurality of operating openings (2a) (2b) (2c) formed in the sieve (1) are the above-described label film insertion position (S ₁ ), PET bottle insertion position (S ₂ ), and label film welding position (S ₃ ), respectively. In the state of being rotated to reach the position at, the rotating cylinder 1 is stopped for a while (approximately 1 to 5 seconds).

As described above, a plurality of operation openings (2a) (2b) (2c) formed in the rotating cylinder (1) are the label film insertion position (S ₁ ), the PET bottle insertion position (S ₂ ), and the label film welding position ( S ₃ ) When stopped at each position, as shown in FIG. 6, in a state in which the label film 4 cut to a predetermined length is supplied to the operating opening 2a of _{the label film insertion position (S 1 ).} Both ends 41 and 42 are vacuum-adsorbed by the front and rear vacuum suction holes 11 and 12, and a part of the PET bottle P is at the operating opening 2b of _{the PET bottle insertion position S 2.} Is supplied in the inserted state, and the PET bottle (P) is inserted into the semicircular support groove (31) of the bottle plate (3c) in _{the label film welding position (S 3 ), and one and the other operating arms (6a)} (6b) is held so that both ends 41 and 42 of the label film 4 surrounding the PET bottle P are in an overlapping state.

As described above, a plurality of operating openings (2a) (2b) (2c) formed in the rotating cylinder (1) are the label film insertion position (S ₁ ), the PET bottle insertion position (S ₂ ), and the label film welding position (S). ₃ ) During a brief pause (1 to 5 seconds) at each position, the piston rod appears and operates as shown in FIG. 7 in the mold operating cylinder 5a, so that the label inserting mold 51 is operated at the opening ( The label film 4 supplied to 2a) is inserted into the semicircular support groove 31 of the bottle plate mold 3a. At this time, the adsorption hole 51a formed in the center of the label insertion mold 51 is Since the center of the label film 4 is adsorbed by vacuum pressure, it is inserted into the bottle plate mold 3a, so that the label film 4 can be accurately inserted into the semicircular support groove 31 of the bottle plate mold 3a. At the same time, the label film 4 inserted into the bottle mold 3a is semicircular due to the vacuum adsorption action of the plurality of vacuum suction holes 32 formed in the semicircular support groove 31 of the bottle paper mold 3a. The support groove (31) is in a vacuum-adsorbed state, and at the same time _{, a part is inserted into the operating opening (2b) of the PET bottle insertion position (S 2} ), so that the PET bottle (P) is formed in the PET bottle supply rotating body (5b). Since the piston rod of the bottle supply cylinder 54 appears and operates to push the bottle supply mold 55, the PET bottle (P) is in the semicircular support groove (31) of the bottle holder (3b) located at the operating opening (2b). On the other hand, the welding device 5c, which is inserted into the label film welding position (S ₃ ), is operated forward by the appearance of the piston rod of the welding cylinder 52, and is inserted into the bottle paper mold 3c while being inserted into one side and Both ends 41 and 42 of the label film 4 overlapped with each other are welded while _{the middle part P 1} of the PET bottle P is wrapped by the other operating arms 6a and 6b (Fig. 4). Reference)

Subsequently, as shown in FIG. 8, the label insertion mold 51 for inserting the label film 4 into the bottle paper mold 3a at the _{label film insertion position S 1 retracts and exits from the operation opening 2a.} Operation and at the same time, the bottle feeding mold 55 for inserting the PET bottle (P) into the bottle cap (3b) of the PET _{bottle insertion position (S 2) exits from the operation opening (2b) and the label film welding position} The operation of moving away from the outer circumference of the PET bottle (P) by the piston rod immersion operation (retraction operation) of the welding cylinder 52 in the state where the welding device 5c formed in (S _{3) has completed the welding operation, etc.} It is achieved at the same time while the sieve (1) is temporarily stopped (1-5 seconds).

As described above, the rotating cylinder 1 stops for a while (1 to 5 seconds) and then rotates again clockwise at a certain angle.At this time, the rotational cylinder 1 starts to rotate again. Thus, while rotating at a certain angle (Q: 15 to 40°), one and the other operating arms (6a) (6b) rotating clockwise from _{the PET bottle insertion position (S 2) are cylinders (8a) (8b).} The PET bottle (P) inserted into the semi-circular support groove 31 of the bottle mold (3b) by a retracting operation with the support shaft (7b) as the axis by the piston rod emergence operation (refer to the arrow direction in Fig. 9). The both ends 41 and 42 of the label film 4 that were vacuum-adsorbed in the front and rear vacuum suction holes 11 and 12 while operating in the direction in close contact with the middle part (P _{1) of the PET bottle (P)} The middle part (P ₁ ) is brought into close contact with each of the operating arms (6a) (6b) on the one side and the other side of the PET bottle (P) with a slight parallax on both ends (41) (42) of the label film (4). Since it is configured to be in close contact with the middle part (P ₁ ), both ends 41 and 42 of the label film 4 are attached to the outer circumference of the _{middle part (P 1) in a state of being overlapped with each other as shown in FIG.} In this way, one and the other side operating arms 6a and 6b rotated from the PET bottle insertion position S ₂ toward the label film welding position S ₃ are both ends 41 and 42 of the label film 4. The plastic bottle (P) _{is attached to the middle part (P 1} ) so as to overlap and rotates to the label film welding position (S _{3 ).}

Welding only the part where both ends 41 and 42 of the label film 4 attached to surround _{the middle part (P 1} ) of the PET bottle (P) at the label film welding position (S _{3) overlap each other. In this case, the welding device 5c makes the welding part P 3} for welding both ends 41 and 42 of the label film 4 welded in a straight line toward the vertical direction as shown in FIG. 2 or As shown in FIG. 3, the welding part P ₃ may be configured to be welded in a dotted line toward the vertical direction.

On the other hand, in the case of one and the other operating arms (6a) (6b) rotating at a certain angle (Q: 15-40° angle) at _{the label film welding position (S 3 ), a plurality of cylinders (8a) (8b)} The piston rod of the immersion operation (refer to the direction of the arrow in Fig. 9), the plastic bottle (P) is released by an operation that opens with the support shaft (7c) as the axis. Accordingly, the PET bottle (P) that rotates toward the _{label film insertion position (S 1} ) in the state where only the both ends (41) and 42 portions of the label film 4 are welded at the label film welding position (S _{3) The lower portion P 2} of the PET bottle P moves along the PET bottle discharge line 200 and is discharged by the release of the one and the other operation arms 6a and 6b. As described above, one and the other operating arms 6a and 6b rotated from the label film welding position S ₃ to the label film insertion position S are discharged from the PET bottle P to the PET bottle discharge line 200. It is rotated to the PET bottle insertion position (S ₂ ) through the label film insertion position (S _{1) in an open state.}

As described above, the label film 4 and the PET bottle P are attached to each of the plurality of bottle paper molds 3a, 3b, and 3c while the rotating cylinder 1 rotates at a certain angle in the clockwise direction and then stops for a while. The operation is sequentially inserted, and the operation of welding only the portions 41 and 42 of the label film 4 attached to surround the PET bottle 4 is performed, and then the rotating cylinder 1 is rotated again in a clockwise direction. Since the operation of rotating at a certain angle is repeatedly repeated, the PET bottles (P) continuously supplied through the PET bottle supply line (100) are supplied one by one from the PET bottle insertion position (S ₂ ) of the rotating cylinder (1). PET bottle discharge line 200 by welding only both ends 41 and 42 of the label film 4 attached _{to the middle part (P 1} ) so as to rotate and move to the label film welding position (S _{3) to wrap the PET bottle (P)} It is discharged continuously in turn.

As described above, in the embodiment of the present invention _{, the label film 4 is attached to the middle part (P 1} ) of the PET bottle (P) and only the both ends 41 and 42 are welded. The rotating cylinder 1 of the invention is a label film 4 installed to surround the outer circumference of a glass bottle into which liquor beverages such as beer and soju and carbonated beverages such as cider cola are injected. Without using the label film 4 wrapped around the outer circumference of the glass bottle, it can be configured as a label adhesive device that only the both ends 41 and 42 are welded and attached by thermal bonding.

1: rotating cylinder 10: central axis
11: front vacuum suction hole 12: rear vacuum suction hole
2a,2b,2c: operating opening 3a,3b,3c: byeongji mold
31: semicircular support groove 32: vacuum suction hole
33: vacuum suction passage 4: label film
41,42: both ends 5a: mold operating cylinder
5b: PET bottle supply rotating body 5c: welding device
51: label insertion mold 51a: suction hole
52: welding cylinder 53: supply opening
54: bottle supply mold 55: bottle supply cylinder
6a,6b: one side and the other side operating arm 7a,7b,7c: support shaft
8a, 8b: cylinder 9: label supply roll
91: label bobbin 92: movable cutting blade
93: fixed cutting blade 100: PET bottle supply line
200: PET bottle discharge line

Claims (10)

In the method of attaching a label film to surround the outer circumference of a PET bottle,
Attaching a label film to surround the outer circumference of the PET bottle, wherein the label film is configured to be thermally bonded to each other and welded to each other while the label film is installed so that both ends of the PET bottle overlap each other while surrounding the outer circumference of the PET bottle.
A central rotation shaft configured to repeatedly repeat an operation of stopping for a while after receiving a rotational force from the outside and rotating at a predetermined angle;
A rotating cylindrical body installed in a state surrounding the central rotating shaft and repeatedly repeating an operation of stopping for a while after rotating at a certain angle like the central rotating shaft;
A plurality of operation openings that are opened in the rotating cylindrical body at regular intervals;
A plurality of PET bottle holders, which are configured to perform rotation and stop operations like the rotary cylinder, and are formed inside the rotary cylinder and have semicircular support grooves for supporting an intermediate portion of the plastic bottle;
It is configured to repeat the operation of wrapping and releasing the outer circumference of the middle portion of the PET bottle closely supported in the semicircular support groove of the plurality of PET bottle holders, and each of a plurality of support shafts repeating the operation of rotating and stopping like the rotating cylindrical body A plurality of one side and the other side operating arms configured to be rotatably supported on the;
A rotational operation in which rotation and stopping operations are repeated like a rotating cylinder in a state formed radially inside the rotating cylinder, and holding or releasing each of the one and the other operation arms to surround the PET bottle with a support shaft as a rotation starting point. A plurality of cylinders configured to repeat; And
A PET bottle supply rotating body formed in a state engaged with one side of the rotating cylinder and having a plurality of supply openings formed at predetermined angles so as to supply one PET bottle to each of the plurality of operating openings formed in the rotating cylindrical body;
PET bottle labeling device, characterized in that configured to include a.
The method of claim 2,
The rotating cylinder is a PET bottle label attaching device, characterized in that configured to divide each of the plurality of operating openings around a central axis of rotation into a label film insertion position, a PET bottle insertion position, and a label film welding position.
The method of claim 2,
Between the label film welding position and the label film insertion position that are separately formed on the rotating cylinder, a label supply roll having a movable cutting blade for cutting after supplying the label film to the outer periphery of the rotating cylinder in a certain length is formed. PET bottle labeling device, characterized in that configured to be.
The method of claim 2,
Attaching a PET bottle label, characterized in that a label inserting mold for inserting the label film into a semicircular support groove of a plastic bottle holder and a mold operating cylinder for operating it in and out are formed at the label film insertion position separately formed in the rotating cylinder. Device.
The method of claim 2,
The PET bottle label attaching device, wherein the plurality of PET bottle holder molds are formed with a plurality of vacuum suction holes to fix the label film inserted into the semicircular support groove by the label insertion mold by vacuum pressure.
The method of claim 2,
Attaching a PET bottle label, characterized in that a plurality of front and rear vacuum suction holes are formed at the front and rear of each of the plurality of operating openings formed at a certain angle in the rotating cylinder so that the label film can be adsorbed and fixed by vacuum pressure. Device.
The method of claim 5,
A PET bottle label attaching device, characterized in that a plurality of suction holes are formed at the center of the label insertion mold so as to suck and hold a plurality of label films under vacuum pressure.
The method of claim 2,
Both ends of the label film overlapping each other while being attached so as to surround the outer circumference of the middle portion of the PET bottle by the one and the other operating arms in the state of being inserted into the semicircular support groove of the plastic bottle holder at the welding position of the label film formed separately on the rotating cylinder. PET bottle labeling device, characterized in that configured to form a welding device for thermally bonding and a welding cylinder for appearing and actuating the same.
The method of claim 2,
Each of the plurality of supply openings formed on the PET bottle supply rotating body is configured to have a plurality of bottle supply molds each having a bottle supply cylinder for supplying one PET bottle to a PET bottle insertion position separately formed in the rotating cylinder. PET bottle labeling device, characterized in that.

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