KR101729761B1 - Linear type heat-shrinkable labels attaching device - Google Patents

Abstract

Disclosed is a linear type heat-shrinkable label attachment device to attach a heat-shrinkable label to a vessel transferred in one row by a linear conveyor. According to one embodiment of the present invention, the device comprises: a vessel transfer unit to transfer a vessel covered by the heat-shrinkable label in one row by the linear conveyor; a steam deposition unit installed in the upper part of the vessel transfer unit and forming a steam chamber spraying hot steam to the vessel transferred by the vessel transfer unit to attach the label to the vessel; a steam supply unit installed in the lower part of the vessel transfer unit and to supply the hot steam to the steam deposition unit; and an air injection unit installed in the upper part of the steam deposition unit, installed to allow multiple air injection nozzles to be lifted/lowered while moving along the transfer direction of the vessel, and to inject air into the vessel through the air injection nozzle when an injection hole of the vessel is clamped and sealed as the air injection nozzle is lowered inside the steam deposition unit in order to prevent a shape of the vessel from being deformed during a thermal shrinkage process of the label by the hot steam in the steam deposition unit.

Description

[0001] LINEAR TYPE HEAT-SHRINKABLE LABELS ATTACHING DEVICE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for attaching a heat shrinkable label sheet, and more particularly to an apparatus for attaching a heat shrinkable label sheet to a container that is conveyed in a line by a linear conveyor.

Generally, PET containers are widely used as liquid beverages and food containers such as carbonated beverages, alcohol beverages, juice beverages, soy sauce, sauces, and the like, and are widely used as materials for PET bottles The properties are excellent in transparency and durability, chemical resistance and elastic strength are good, and the utilization thereof as a container for liquid foods and chemical products is gradually increasing.

In the use of such a PET container, a paper or film label is attached to the outer surface of the PET container in order to display the origin of the product or to display the quality. As a conventional label labeling method, a direct printing type, a sticker type, have.

However, the conventional labeling method is disadvantageous because the sticker pulverized product is disadvantageous in the pulverization process for recycling after use of the PET bottle container, and there is a health hygiene problem due to the release of the environmental hormone.

Therefore, as a label sheet for a PET container, it is extremely easy to peel off when recovered, and a label labeling method using a heat-shrinkable film having the same material as a container is recognized as the most reasonable method.

The heat-shrinkable label paper is produced by unidirectionally or bidirectionally stretching a film of polyvinyl chloride (PVC), polyethylene (PE film) or polypropylene (PP film) at a temperature close to the melting point. When used as a packaging material, , The entire film rapidly shrinks to exhibit a packaging function and a coating function.

Korean Patent Registration No. 10-1123420 discloses a method of preventing the contamination of the container and the bacterial infection by heating and shrinking the label paper laid on the container by using the hot air or ultraviolet ray dried and putting on the conveyor belt so as to sterilize the container A heating unit provided inside the tunnel frame so as to supply hot air dried in the container; and a hot air supply unit that sucks hot air supplied through the heat supply unit to the lower part of the conveyor belt and circulates the hot air supplied to the heat supply unit A labeling apparatus for a container including a hot air circulating means has been disclosed.

However, in the labeling apparatus for a container as described above, when the thermally shrinkable label paper is surrounded on the main surface of the PET bottle container and then passed through the tunnel provided with the heat supply unit, the heat shrinkable label paper is contracted by hot air to attach the periphery of the PET bottle container. In this case, since the high temperature is close to the melting point of the PET bottle container, the PET bottle container itself is partially deformed due to the instant heating in the case of the thin PET bottle container material, so that the PET bottle container material is made as thick as possible As a result, there is a problem that the manufacturing cost of the PET bottle container is increased and excess weight is generated more than necessary.

Korean Patent Registration No. 10-1624647 discloses a rotary type heat-shrinkable labeling machine in which a steam chamber is constituted by a rotary transfer device and heat shrinkable labeling by steam is possible and rapid labeling is performed by high-temperature steam without damaging the shape of the PET container. An attaching device has been disclosed.

However, such a rotary type heat shrinkable label sheet attaching apparatus as described above has a problem in that a manufacturing cost is increased due to the complicated structure of the apparatus because the rotary transferring unit including the turntable having a plurality of rotary chucks for conveying while rotating and revolving the container .

Korean Registered Patent No. 10-1123420 (issued March 23, 2012) Korean Registered Patent No. 10-1624647 (published on May 30, 2016)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for transferring a container covered with a heat shrinkable label paper to a steam chamber by a linear type transfer device to smoothly perform heat shrinkable labeling, Which is capable of preventing deformation of the container due to the heat shrinkable label sheet.

According to an aspect of the present invention, there is provided an apparatus for attaching a linear type heat shrinkable label sheet, comprising: a container conveying unit for conveying containers wrapped with heat-shrinkable label sheets in a line by a linear conveyor; A steam deposition unit installed on the upper part of the conveying unit to form a steam chamber so that the label paper is attached to the container by spraying high temperature steam to the container conveyed by the conveying unit; A steam supply unit installed at a lower portion of the vessel for supplying high temperature steam to the steam deposition unit; And a plurality of air injection nozzles installed on the upper part of the steam vapor deposition unit to move up and down while moving along the conveyance direction of the container, and prevent the shape of the container from being deformed during the heat shrinkage of the label paper by the steam at the steam vapor deposition unit And an air injection unit for injecting air into the vessel through the air injection nozzle while the air injection nozzle is lowered into the steam deposition unit to clamp the injection port of the vessel and seal the vessel.

The steam vapor deposition unit may include a steam chamber formed in a tunnel shape on the linear conveyor and sealing the periphery of the vessel while preventing high-temperature steam from leaking to the outside; And a plurality of steam injection nozzles disposed at equal intervals along the longitudinal direction on the inside of the steam chamber for spraying high-temperature steam onto the outer circumferential surface of the vessel, wherein the steam chamber passes through the upper portion of the air injection nozzle A through hole may be formed on the upper surface of the steam chamber in the longitudinal direction so as to move along the conveying direction of the container by the linear conveyor while the inlet of the container is hermetically closed.

In addition, the air injecting unit may include a chain installed in an upper portion of a main body having the vessel, the steam vaporizing unit, and the steam supplying unit installed in an elliptical orbit in a horizontal direction and rotating; A plurality of lifting and lowering rods vertically coupled to a plurality of brackets provided at equal intervals in the chain; A plurality of air injection nozzles installed at a lower end of the lifting rod; An air inflow pipe installed upright on an upper portion of the main body; An air chamber rotatably coupled to an upper end of the air inlet pipe and storing air introduced through the air inlet pipe; And a supply hose installed to connect the air chamber and the air injection nozzle to supply the air stored in the air chamber to the air injection nozzle.

The supply hose may be spring-shaped so as to be elastically stretchable with respect to a change in distance between the air chamber and the air injection nozzle according to an elliptical trajectory when the air injection nozzle moves along an elliptical orbit by rotation of the chain Lt; / RTI >

Further, the air injection unit may further include an elevating guide rail arranged in a line on an upper portion of the elevating rod corresponding to the steam depositing unit, the elevating guide rail having a downward sloping surface at the front and an upward sloping surface at the rear, The upper end of the lifting rod is lowered from the inlet of the steam depositing portion through the downward inclined surface of the lifting guide rail to guide the lifting rod up and down when the lifting rod is moved by the rotation of the chain, The air injection nozzle injects air into the interior of the vessel while closing the injection port of the vessel and raises the upper end of the lift rod through the upward inclined surface of the raising guide rail at the outlet of the steam deposition unit, Can be opened.

The air injector may further include a plurality of air distributors installed at predetermined intervals in the chain so as to distribute and supply air to a plurality of air injection nozzles, And the air distributors are connected to each other through a connection hose, and two or more air injection nozzles adjacent to one of the air distributors can be connected through a distribution hose.

Further, a linear conveyor for conveying containers wrapped with heat-shrinkable label paper in a row; A steam chamber formed in a tunnel shape on the linear conveyor to seal the periphery of the vessel while preventing high-temperature steam from leaking to the outside; A plurality of steam injection nozzles disposed at equal intervals along the longitudinal direction on the inside of the steam chamber and spraying high temperature steam to the outer circumferential surface of the container so that the label paper is attached to the container conveyed by the linear conveyor; A steam supply unit installed at a lower portion of the linear conveyor to supply steam to the steam injection nozzle; Wherein the linear conveyor, the steam chamber, and the steam supply unit are installed to rotate in an elliptical orbit in a horizontal direction on an upper portion of a body provided therein; A plurality of lifting and lowering rods vertically coupled to a plurality of brackets provided at equal intervals in the chain; The steam is supplied into the steam chamber to prevent deformation of the container during heat shrinking of the label paper due to high temperature steam in the steam chamber, A plurality of air injection nozzles for injecting air into the nozzles; An air inflow pipe installed upright on an upper portion of the main body; An air chamber rotatably coupled to an upper end of the air inlet pipe and storing air introduced through the air inlet pipe; Wherein the air injection nozzle is provided to connect the air chamber and the air injection nozzle so as to supply the air stored in the air chamber to the air injection nozzle, and when the air injection nozzle moves along the ellipse orbit by the rotation of the chain, A supply hose formed in a spring shape so as to be elastically stretchable with respect to a change in distance between the air chamber and the air injection nozzle; The steam generator according to any one of claims 1 to 4, wherein the steam generator is a steam generator. The steam generator according to claim 1, wherein the steam generator is a steam generator. An elevating guide rail for guiding the descent; And a plurality of air distributors installed at predetermined intervals in the chain so as to distribute and supply air to a plurality of air injection nozzles.

According to the linear type heat shrinkable labeling sheet attaching apparatus of the present invention, the container for feeding the container covered with the heat shrinkable label sheet to the linear conveyor is provided with the steam vaporizing section, so that the labeling process of the heat shrinkable label sheet can be performed by steam injection, It is possible to prevent the shape of the container itself from being deformed due to the steam heating, so that it is possible to mass-produce the standard product of the labeling of the good quality all the time.

Further, since the material thickness of the container itself can be made as thin as possible according to the effect of preventing deformation of the container, the present invention has a cost saving effect due to material saving in container manufacturing.

The present invention also provides a rotary type heat shrinkable labeling device including a transfer device by a linear conveyor for conveying a container, and a rotary type heat shrinkable labeling device including a rotary conveying portion including a turntable having a plurality of rotary chucks, It is possible to reduce the manufacturing cost by simplifying the structure of the apparatus.

1 is a front view of an apparatus for attaching a linear type heat shrinkable label sheet according to an embodiment of the present invention.
2 is a plan view of an apparatus for attaching a linear type heat shrinkable label sheet according to an embodiment of the present invention.
3 is a side view of an apparatus for attaching a linear type heat shrinkable label sheet according to an embodiment of the present invention.
4 is an enlarged view of a portion A in Fig.
5 is a perspective view of an air injection unit provided in the linear type heat shrinkable label sheet attaching apparatus of the present invention.
FIG. 6 is an operation diagram showing an operation state in which air is injected into a container while the air injection nozzle is lowered in the label sheet heat shrinking process of the container to close the injection port of the container.
FIG. 7 is an operational view showing an operating state in which the air injection nozzle rises and the inlet of the container is opened when the label sheet heat shrinking process of the container is completed.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the embodiments described below are provided for illustrative purposes only, and that the present invention may be embodied with various changes and modifications within the spirit and scope of the present invention. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

FIG. 1 is a front view of an apparatus for attaching a linear type heat shrinkable labeling sheet according to an embodiment of the present invention, FIG. 2 is a plan view of an apparatus for attaching a linear type heat shrinkable labeling sheet of the present invention, FIG. 4 is an enlarged view of a portion A of FIG. 3, and FIG. 5 is a perspective view of an air injection portion provided in the linear type heat shrinkable label sheet attaching apparatus of the present invention.

1 to 5, an apparatus for attaching a linear type heat shrinkable labeling sheet according to an exemplary embodiment of the present invention includes a main body 100, a container transferring unit 200, a steam depositing unit 300, a steam supplying unit 400, And an air injection unit 500.

The main body 100 is installed so as to be supported on the floor. The container transfer unit 200 may be installed in a row in the horizontal direction and the steam supply unit 300 and the steam supply unit 400 may be installed at the upper and lower portions of the container transfer unit 200, . A hole 101 is formed in the upper surface of the main body 100 so as to correspond to the through hole 311 of the steam chamber 310 to be described later so that the air injection nozzle 540 passes through the hole 101 of the main body 100 And is inserted into the through hole 311 of the post-steam chamber 310.

The container conveying unit 200 is composed of a linear conveyor 210 for conveying a plurality of containers 10 in a row so that the container 10 having the heat shrinkable label sheet 11 can be fed into the steam vaporizing unit 300 . The container conveying unit 200 includes a linear conveyor 210 arranged in a row in a horizontal direction in the middle of the main body 100 and a gear 220 provided on both sides of the linear conveyor 210 in a motor The linear conveyor 210 rotates in an endless track manner. At this time, the container 10 on which the heat-shrinkable label paper 11 is placed is conveyed in a line along the linear conveyor 210 without being rotated and revolved while being put on the linear conveyor 210.

The steam deposition unit 300 is installed on the upper part of the vessel conveyance unit 200 so that the label sheet 11 is attached to the vessel 10 by spraying high temperature steam to the vessel 10 conveyed by the vessel conveyance unit 200. [ Thereby forming a steam chamber 310.

The steam deposition unit 300 may include a steam chamber 310 and a steam injection nozzle 320.

The steam chamber 310 is formed in a tunnel shape on the linear conveyor 210 to seal the periphery of the vessel 10 while preventing the high-temperature steam from leaking to the outside. The steam chamber 310 is formed to have a length shorter than the length of the upper side of the linear conveyor 210. An inlet 310a is formed at a front side of the steam chamber 310 so that the container 10 is introduced into the steam chamber 310 by the linear conveyor 210. A rear side of the steam chamber 310 is provided with a label paper An outlet 310b through which the container 10 in which the heat-shrinkable container 11 is shrunk is formed.

The steam chamber 310 is connected to the steam chamber 310 through an upper portion of the air injection nozzle 540 so as to move along the conveying direction of the vessel 10 by the linear conveyor 210 in a hermetically sealed state by clamping the injection port of the vessel. A through hole 311 is formed in a straight line along the longitudinal direction on the upper surface of the substrate 310. The remaining steam in the steam chamber 310 after attaching the label paper 11 to the container 10 in the steam chamber 310 is discharged through the through hole of the steam chamber 310 when the air injection nozzle 540 rises 311, respectively.

The steam spraying nozzles 320 are arranged at equal intervals along the longitudinal direction on the inner walls on both sides of the steam chamber 310 so as to spray steam of high temperature to the outer circumferential surface of the vessel 10. The steam injection nozzle 320 is connected to a steam supply pipe to be described later.

The steam vapor deposition unit 300 allows the steam to pass through the steam chamber 310 in the process of conveying the container 10 along the linear conveyor 210 to spray high temperature steam onto the label paper 11, The label paper 11 can be sufficiently shrunk in the steam section and adhered to the container 10.

The steam supply unit 400 is installed at a lower portion of the vessel conveyance unit 200 to supply high-temperature steam to the steam deposition unit 300. The steam supply unit 400 includes a steam supply pipe connected to the steam injection nozzle 320 and a steam supply device. The steam supply pipe and the steam supply device are well known in the art and will not be described in detail. In the present invention, the steam supplying unit 400 is disposed below the steam depositing unit 300 including the vessel conveying unit 200 and the steam chamber 310 formed of the linear conveyor 210, so that a plurality of air injecting nozzles 540 The air injection unit 500 may be installed at an upper portion of the steam deposition unit 300.

The air injecting part 500 is installed on the upper part of the steam depositing part 300 and is installed so that a plurality of air injecting nozzles 540 move up and down along the conveying direction of the container 10 from the upper part of the container 10 The air injection nozzle 540 descends into the vapor deposition unit 300 to prevent deformation of the container 10 during the heat shrinking process of the label sheet 11 due to the high temperature steam in the steam deposition unit 300, Air is injected into the interior of the container 10 through the air injection nozzle 540 in a state where the injection port of the container 10 is closed.

The air injection unit 500 includes a chain 510, a gear 520, a lift rod 530, an air injection nozzle 540, an elevation guide rail 550, an air inlet pipe 560, an air chamber 570, A supply hose 580 and an air distributor 590. [

The chain 510 is installed to rotate in an elliptical orbit in a horizontal direction in a frame 501 provided on the upper part of the main body 100. The frame 501 is coupled with the elliptical upper plate 501a and the lower plate 501b in a state of being vertically spaced apart and the lower plate 501b is fixed to the upper portion of the main body 100. [ The chain 510 consists of a pair of upper and lower pairs and is rotated in an elliptical orbit in the horizontal direction along the outer periphery of the elliptical frame 501.

The gears 520 are installed on both sides of the chain 510 in the longitudinal direction of the chain 510, and are rotated by engaging with the chain 510 while the gear 520 is rotated by a drive motor (not shown). At this time, since the idle gears 521 are provided on both sides of the pair of gears 520, the chain 510 can be supported so as to rotate while forming an elliptical orbit.

A plurality of lifting and lowering rods 530 are installed on the bracket 531 installed on the chain 510 so as to be movable up and down. The lifting rod 530 is elastically supported by the spring 533 in the up and down direction by the bracket 531. The upper portion of the lifting rod 530 is guided by the lifting and lowering guide rail 550 when the lifting rod 530 moves along the lifting and lowering guide rail 550 to be described later and is lifted and lowered due to a difference in height along the slanted surface of the lifting and lowering guide rail 550.

A plurality of air injection nozzles 540 are installed to rotate along the chain 510. The air injection nozzle 540 may be provided with a clamping chuck 541 so as to maintain airtightness by clamping the outer peripheral surface of the injection port of the container 10 with an air injection port formed at the lower end thereof. Since the clamping chuck can be understood by a known technique, a detailed description thereof will be omitted. The air injection nozzle 540 is coupled to the lower end of the lifting rod 530 and moves up and down by the lifting and lowering operation of the lifting rod 530.

The air injection nozzle 540 is connected to the air injection nozzle 540 through the air injection nozzle 540 so as to prevent deformation of the container 10 during the heat shrinking process of the label paper 11 in a state in which the container injection port is closed by the lifting rod 530 descending, Air is injected into the container 10. [

The air injection nozzle 540 has a diameter smaller than the diameter of the through hole 311 so that the air injection nozzle 540 can pass through the upper through hole 311 of the steam chamber 310.

An air pressure sensor 535 is provided at one side of the lifting rod 530 or the air injection nozzle 540 to measure the pressure of air injected into the container 10 through the air injection nozzle 540.

The elevating guide rails 550 are fixed to the frame upper plate 501a so as to be aligned in a horizontal direction on the upper part of the elevating rod 530 in correspondence with the steam depositing unit 300.

The elevating guide rail 550 is formed with a downward inclined face 550a at the front side and an upward inclined face 550b at the rear side thereof. Therefore, the elevation guide rail 550 generates a height difference along the inclined surface with respect to the longitudinal direction, thereby guiding the lifting and lowering of the lifting and lowering rod 530 when the lifting and lowering rod 530 moves along the chain 510 .

For example, when the lifting rod 530 moves along the chain 510, the upper end of the lifting rod 530 at the inlet 310a of the steam depositing part 300 contacts the downward sloping surface 550a of the lifting guide rail 550, The air injection nozzle 540 coupled to the lower end of the lifting rod 530 is lowered to clamp the injection port of the container 10 to hermetically seal the air into the container 10, . The upper end of the lifting rod 530 passes through the upward inclined surface 550b of the lifting and lowering guide rail 550 and reaches the elasticity of the spring 533 at the outlet 310b of the steam deposition unit 300, The air injection nozzle 540 is disengaged from the container 10 and the inlet of the container 10 is opened.

The air inlet pipe 560 is installed upright on the upper part of the main body 100 and is preferably fixed upright in the upper center of the frame 501 on which the chain 510 is installed. The air inlet pipe 560 is connected to an air supply tank (not shown) so that air or cooling air can be introduced.

The air chamber 570 is rotatably coupled to the upper end of the air inlet pipe 560, and the air introduced through the air inlet pipe 560 is temporarily stored. A bearing (not shown) is installed at the lower end of the air chamber 570 to enable smooth rotation of the air inlet pipe 560. The air chamber 570 is rotatably coupled to the air inlet pipe 560 so that an air injection nozzle 540 in which an air chamber 570 to be described later is connected via a supply hose 580 is rotated And is rotated in association with the movement.

The supply hose 580 is provided to connect the air chamber 570 and the air injection nozzle 540 to supply the air stored in the air chamber 570 to the air injection nozzle 540.

The supply hose 580 is elastically deformed relative to the distance between the air chamber 570 and the air injection nozzle 540 along the elliptical trajectory as the air injection nozzle 540 moves along the elliptical orbit by the rotation of the chain 510 In the form of spring or bellows.

A plurality of air distributors 590 are installed at predetermined intervals in the chain 510 so as to distribute and supply air to a plurality of air injection nozzles 540. One of these air distributors 590 is connected to a supply hose 580 to an air chamber 570 and the air distributors 590 are connected to each other through a connection hose 591. In addition, two adjacent air injection nozzles 540 are connected to the one air distributor 590 through the distribution hose 593. Air is supplied from the air chamber 570 through the supply hose 580 to one of the air distributors 590 and then supplied to the remaining air distributors 590 through the connection hose 591, Air is supplied to the two or more air injection nozzles 540 adjacent to each other through the distribution hose 593 in the air distributor 590.

In the linear type heat shrinkable label sheet attaching apparatus of the present invention configured as described above, the container 10 on which the heat shrinkable label sheet 11 is placed is continuously conveyed in a line along the linear conveyor 210, The steam is supplied to the vapor deposition unit 300. At this time, the container 10 on which the heat-shrinkable label paper 11 is placed is conveyed while being lifted on the linear conveyor 210, so that the container 10 does not rotate or revolve.

In the steam depositing part 300 including the steam chamber 310, steam of high temperature is sprayed on the outer circumferential surface of the container 10 conveyed by the linear conveyor 210 so that the label paper 11 is attached to the container 10. In order to prevent the deformation of the container 10 during the heat shrinking process of the label paper 11 due to the high temperature steam in the steam vapor deposition unit 300, the air injection nozzles 540 are arranged at the upper portion of the container 10, So that air is injected into the interior of the container 10. The air injection operation state of the air in the container due to the up-and-down movement of the air injection nozzle 540 will be described in detail with reference to FIG. 6 and FIG.

6 is an operation diagram showing an operation state in which air is injected into the container while the air injection nozzle is lowered in the label sheet heat shrinking process of the container to close the inlet of the container.

6, when the container 10 covered with the heat shrinkable label paper 11 is transported into the steam deposition unit 300 by the linear conveyor 210, the lifting rod 530 is lifted up and down by the lifting guide rails 550 The air injection nozzle 540 descends along the lifting rod 530 with the injection port of the container 10 as the lifting rod 530 descends while passing through the front side downward inclined surface 550a of the container 10, So that it is airtightly sealed. By injecting air into the interior of the container 10 from the supply hose 580 connected to the air injection nozzle 540 in a state in which the air injection nozzle 540 is hermetically closed by clamping the injection port of the container 10, The container 10 is conveyed in the direction of the vapor deposition unit 300 by preventing the shape of the container 10 from being affected by the high temperature steam or the shrinkage pressure of the label paper 11.

That is, if air is injected into the container 10 while the injection port of the container 10 is closed through the air injection nozzle 540, the air pressure inside the container 10 increases, It is possible to prevent the shape deformation of the container 10 due to the high temperature steam or the shrinkage pressure of the label paper 11. In addition, when cooling air is sprayed into the container 10, the cool air evenly spreads inside the container 10, and the heat generated by the outside, that is, steam, It is possible to effectively prevent the occurrence of defective products such as the deformation of the material of the container 10 due to the instantaneous high temperature in the process of attaching the label paper 11.

In the state where the air is injected into the vessel 10 through the air injection nozzle 540, steam is injected into the steam deposition unit 300 while the vessel 10 is sealed by the steam chamber 310 A plurality of steam injection nozzles 320 arranged in a row in the steam chamber 310 are uniformly sprayed to the outer circumferential surface of the container 10 to be conveyed by the linear conveyor 210, And steam of high temperature is uniformly applied to the outer peripheral surface of the container 10, so that the uniform deposition of the label paper 11 is performed.

7 is an operation diagram showing an operating state in which the air injection nozzle rises and the inlet of the container is opened when the label sheet heat shrinking process of the container is completed.

7, the label 10 is thermally contracted while the label paper 11 is being passed through the steam vapor deposition unit 300, and the container 10, which has been attached, is discharged along the linear conveyor 210 to the outside of the steam vapor deposition unit 300 do. At this time, as the lifting rod 530 passes the upward sloping surface 550b on the rear side of the lifting guide rail 550 and the lifting rod 530 is lifted by the elasticity of the spring 533, So as to open the inlet of the vessel 10.

According to the linear type heat shrinkable label sheet attaching apparatus of the present invention as described above, it is possible to perform the labeling process of the heat shrinkable label sheet by the steam jetting, in addition to the process of labeling the tray with the steam feeder unit for conveying the container wrapped with the heat shrinkable label sheet to the linear conveyor. By injecting air into the container during the process, the container itself is prevented from deforming due to the steam heating, so that it is possible to always produce quality container labeling products of good quality.

In addition, since the thickness of the material of the container itself can be made as thin as possible according to the effect of preventing deformation of the container, the cost due to material saving in the container manufacturing can be reduced.

In addition, in a conventional rotary type heat shrinkable label sheet attaching device in which a linear type heat shrinkable label sheet attaching device including a feed device by a linear conveyor is configured to feed a container, and which is constituted by a rotary conveying portion including a turntable having a plurality of rotary chucks It is possible to reduce the manufacturing cost by simplifying the structure of the device.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

100: main body 200: container sending
210: Linear conveyor 300: Steam deposition unit
310: Steam chamber 320: Steam injection nozzle
400: steam supply part 500: air injection part
501: frame 510: chain
520: gear 521: idle gear
530: lifting rod 531: bracket
533: spring 535: air pressure sensor
540: air injection nozzle 550: lift guide rail
560: Air inlet pipe 570: Air chamber
580: Supply hose 590: Air distributor
591: Connection hose 593: Distribution hose

Claims (7)

A container conveying unit for conveying containers wrapped with heat-shrinkable label sheets in a line by a linear conveyor;
A steam deposition unit installed on the upper part of the conveying unit to form a steam chamber so that the label paper is attached to the container by spraying high temperature steam to the container conveyed by the conveying unit;
A steam supply unit installed at a lower portion of the vessel for supplying high temperature steam to the steam deposition unit; And
And a plurality of air injection nozzles installed on the upper part of the steam vapor deposition unit to move up and down while moving along the transport direction of the container and to prevent deformation of the container during heat shrinking of the label paper due to high temperature steam in the steam vapor deposition unit And an air injection unit for injecting air into the vessel through the air injection nozzle while the air injection nozzle is lowered into the steam deposition unit to clamp the injection port of the vessel and seal the vessel,
The air-
A chain installed to rotate in an elliptical orbit in a horizontal direction on an upper part of a body provided with a vessel, a steam evaporator, and a steam supply unit;
A plurality of lifting and lowering rods vertically coupled to a plurality of brackets provided at equal intervals in the chain;
A plurality of air injection nozzles installed at a lower end of the lifting rod;
An air inflow pipe installed upright on an upper portion of the main body;
An air chamber rotatably coupled to an upper end of the air inlet pipe and storing air introduced through the air inlet pipe; And
And a supply hose installed to connect the air chamber and the air injection nozzle to supply the air stored in the air chamber to the air injection nozzle.
The method according to claim 1,
The steam-
A steam chamber formed in a tunnel shape on the linear conveyor to seal the periphery of the vessel while preventing high-temperature steam from leaking to the outside; And
And a plurality of steam spray nozzles disposed at equal intervals along the longitudinal direction on the inside of the steam chamber to spray high temperature steam on the outer circumferential surface of the vessel,
And the steam chamber is formed with a through hole in the longitudinal direction on the upper surface of the steam chamber so that the steam can pass along the conveying direction of the container by the linear conveyor while the air injection nozzle passes through the upper portion and hermetically closes the injection port of the container Linear type heat shrinkable label sheet attaching device.
delete The method according to claim 1,
The supply hose is spring-shaped so as to be elastically stretchable with respect to a change in distance between the air chamber and the air injection nozzle according to an elliptical trajectory when the air injection nozzle moves along an elliptical orbit by rotation of the chain Features a linear type heat shrinkable labeling device.
The method according to claim 1,
Wherein the air injection unit further includes a lift guide rail disposed in a line on an upper portion of the lift rod in correspondence with the steam vapor deposition unit and having a downward slope in front and an upward slope in the rear,
Wherein the lifting guide rail guides the lifting rod up and down when the lifting rod is moved by the rotation of the chain, wherein an upper end of the lifting rod at an entrance of the steam depositing portion passes through a downward slope of the lifting guide rail, As the upper end of the lifting rod is lifted up from the outlet of the steam deposition unit through the upward sloping surface of the lifting guide rail, the air is injected into the interior of the container while the air injection nozzle hermetically closes the injection port of the container. So that the nozzle opens the injection port of the container.
The method according to claim 1,
The air injecting unit may further include a plurality of air distributors installed at predetermined intervals in the chain so as to distribute and supply air to a plurality of air injection nozzles,
Wherein one of the air distributors is connected to the air chamber by the supply hose and the air distributors are connected to each other through a connection hose and two or more air injection nozzles adjacent to one of the air distributors are connected through a distribution hose Wherein the linear type heat shrinkable label sheet is attached to the linear type heat shrinkable label sheet.
A straight conveyor for conveying containers wrapped with heat-shrinkable label paper in a line;
A steam chamber formed in a tunnel shape on the linear conveyor to seal the periphery of the vessel while preventing high-temperature steam from leaking to the outside;
A plurality of steam injection nozzles disposed at equal intervals along the longitudinal direction on the inside of the steam chamber and spraying high temperature steam to the outer circumferential surface of the container so that the label paper is attached to the container conveyed by the linear conveyor;
A steam supply unit installed at a lower portion of the linear conveyor to supply steam to the steam injection nozzle;
Wherein the linear conveyor, the steam chamber, and the steam supply unit are installed to rotate in an elliptical orbit in a horizontal direction on an upper portion of a body provided therein;
A plurality of lifting and lowering rods vertically coupled to a plurality of brackets provided at equal intervals in the chain;
The steam is supplied into the steam chamber to prevent deformation of the container during heat shrinking of the label paper due to high temperature steam in the steam chamber, A plurality of air injection nozzles for injecting air into the nozzles;
An air inflow pipe installed upright on an upper portion of the main body;
An air chamber rotatably coupled to an upper end of the air inlet pipe and storing air introduced through the air inlet pipe;
Wherein the air injection nozzle is provided to connect the air chamber and the air injection nozzle so as to supply the air stored in the air chamber to the air injection nozzle, and when the air injection nozzle moves along the ellipse orbit by the rotation of the chain, A supply hose formed in a spring shape so as to be elastically stretchable with respect to a change in distance between the air chamber and the air injection nozzle;
The steam generator according to any one of claims 1 to 4, wherein the steam generator is a steam generator. The steam generator according to claim 1, wherein the steam generator is a steam generator. An elevating guide rail for guiding the descent; And
And a plurality of air distributors provided at predetermined intervals in the chain so as to distribute and supply air to a plurality of air injection nozzles.

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