JP2008174274A - Shrink label position adjusting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shrink label position adjusting apparatus capable of moving a shrink label to a specified position of a body to be packaged even when the shrink label is under the condition that it is stuck on the body to be packaged with water drops stuck on the body to be packaged. <P>SOLUTION: The shrink label position adjusting apparatus which positions the shrink label covered on the body to be packaged to the specified position of the body to be packaged, is equipped with a conveying passage for conveying the body to be packaged, a blow nozzle for feeding air to the inside of the shrink label, and a belt for positioning the shrink label to the specified position of the body to be packaged under the condition that a contacting face approaching the conveying passage side while advancing in the same direction as the conveying passage is brought into contact with an opening end of the shrink label, and a part coming into contact with the shrink label on the contacting face extremely approaches the conveying passage side. Air is fed by the blow nozzle after the shrink label comes into contact with the contacting face of the belt, and until the part brought into contact with the shrink label on the contacting face extremely approaches to the conveying passage side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shrink label position adjusting device.

  As is well known, a shrink label can be attached to the surface of a packaging body such as a plastic bottle or a bottle without using an adhesive, so it can be peeled off from the surface of the packaging body just by cutting it when separating waste. As a result, it is used for packaging many products today, where resources are actively recycled.

  Normally, when a shrink label is attached to a package, a flat tube-shaped shrink label formed by cutting a folded tubular film at predetermined intervals is opened in a cylindrical shape. After the cover is placed on the body, the shrink label placed on the package body is heated and thermally contracted to be attached to the surface of the package body.

  Therefore, when the shrink label is placed on the package body, if the shrink label is not positioned at a predetermined position of the package body, the shrink label is attached to the package body as it is. Many devices have been developed to position a shrink label placed on a package in a predetermined position on the package before heat shrinking.

For example, in Patent Document 1 described later, a device that detects a container with a shrink label, a compressed air nozzle that blows compressed air toward the container with a delay device acting by the device that detects the container, and a lower part of the container A shrink labeler position restricting device is disclosed which is composed of a sponge timing belt for restricting the position of a shrink label, which is arranged in a pair so as to be sandwiched between left and right.
Japanese Utility Model Publication No.57-1111

  However, in the shrink labeler position restricting device described in Patent Document 1, the shrink label is moved to a predetermined position of the package body only by the air flow generated by the compressed air sent to the inside of the shrink label. When water droplets adhere to the surface of the package body due to condensation, etc., the shrink label sticks to the surface of the package body due to the water droplets. However, since the sticking of the shrink label to the surface of the package body cannot be completely dissociated, there is a problem that the shrink label cannot be reliably moved to a predetermined position of the package body.

  In addition, the packaged body to be transported is detected by a sensor, and the compressed air nozzle is positioned on the shoulder of the container and the compressed air is sprayed by delaying the speed of the transport path. However, there was a problem that the working speed was delayed and the working efficiency was very poor.

  Therefore, the present invention ensures that the shrink label is securely attached even when the shrink label is stuck to the surface of the package due to water droplets or the like adhering to the surface of the package. As a technical problem, to provide a shrink label position adjustment device that can be moved to a predetermined position and can be operated without changing the traveling speed of a packaged body conveyed by a conveyance path, As a result of repeating trial manufacture and experiment to achieve the realization, in a shrink label position adjusting device that positions a cylindrical shrink label placed on a packaged body at a predetermined position before heat shrinking, A conveying path for conveying a package, a blow nozzle for sending air into a shrink label placed on a package conveyed by the conveying path, and the conveying path The contact surface gradually approaching the transport path while proceeding in the same direction with the space provided is brought into contact with the opening end of the shrink label placed on the package transported by the transport path to The shrink label is moved to the transport path side with respect to the package body during transport, and the shrink label is placed at a predetermined position of the package body in a state where the contact surface is in contact with the opening end of the shrink label closest to the transport path side. A pair of belts positioned on the belt, and when the packaged body passes between the conveyance path and the contact surface along with conveyance by the conveyance path, the open end of the shrink label contacts the contact surface of one of the belts. Until the portion of the contact surface that is in contact with the open end of the shrink label is closest to the transport path, the inside of the shrink label is always blown by the blow nozzle. If so air is sent to securely obtained a finding should Katsumoku that the shrink label can be moved to a predetermined position of the package, is obtained by achieving the technical problems.

  The technical problem can be solved by the present invention as follows.

  That is, the shrink label position adjusting device according to the present invention is a shrink label position adjusting device that positions a cylindrical shrink label placed on a packaged body at a predetermined position before heat shrinking. To the side of the conveying path while proceeding in the same direction with a gap between the conveying path and the blow nozzle for sending air to the inside of the shrink label placed on the package conveyed by the conveying path. The contact surface gradually approaching is brought into contact with the opening end of the shrink label placed on the package to be packaged conveyed by the conveyance path, and the shrink label is conveyed with respect to the package by the conveyance path side by the conveyance path. The shrink label is encapsulated in a state where the contact surface is in contact with the opening end of the shrink label closest to the conveyance path side. A pair of belts positioned at predetermined positions on the body, and when the packaged body passes between the conveyance path and the contact surface along with conveyance by the conveyance path, the opening end of the shrink label is one of the belts. The air is constantly sent to the inside of the shrink label by the blow nozzle until the portion of the contact surface that is in contact with the opening end of the shrink label is closest to the conveyance path side.

  Further, in the shrink label position adjusting device according to the present invention, the packaged body conveyed by the conveyance path is passed between the pair of guide plates so that the center of the packaged body runs on the center line running in the traveling direction of the conveyance path. A guide for positioning is provided, the air outlet of the blow nozzle is narrow and extends along the center line of the conveyance path, and the shrink label of the shrink label placed on the packaging body that has passed through the guide by the blow nozzle. Air is sent inward.

  According to the present invention, the inner side of the shrink label is moved to the predetermined position of the package body by pushing the open end of the shrink label by the pair of belts while feeding air to the inner side of the shrink label by the blow nozzle. Since the airflow sent to the surface of the shrink label attached to the surface of the package by water drops slightly weakens, the shrink label is pushed by the pair of belts while maintaining the state. It is possible to move the shrink label to a predetermined position of the package body without damaging the opening end of the shrink label without applying an excessive force to the shrink label pressed by the. Also, the air blower outlet in the blow nozzle is transported so that air can always flow into the inside of the shrink label while the force that presses the open end of the shrink label by the contact surface is applied to the blow nozzle. Since it extended to the advancing direction of a path | route, it is not necessary to change the speed which conveys a to-be-packaged body.

  Therefore, it can be said that the industrial applicability of the present invention is very high.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment.

  FIG. 1 is a side view showing a shrink label position adjusting device according to the present embodiment. FIG. 2 is a cross-sectional view taken along the line AA showing the shrink label position adjusting device shown in FIG. FIG. 3 is a plan view showing a guide of the shrink label position adjusting device shown in FIG. FIG. 4 is an explanatory view showing a state in which the shrink label moves to a predetermined position of the package body. In these drawings, reference numeral 1 denotes a transport path 4 that transports a packaged body 3 covered with a shrink label 2 and an air inside the shrink label 2 that covers the packaged body 3 transported by the transport path 4. It is a shrink label position adjusting device including a blow nozzle 5 to be fed and a pair of belts 6 that move the shrink label 2 to which air has been fed by the blow nozzle 5 to a predetermined position of the package 3.

  The conveyance path 4 is a belt type that conveys the packaged body 3 covered with the shrink label 2 at a constant speed, and is attached to a seat 7. As shown in FIG. 3, as shown in FIG. 3, the center of the packaged body 3 covered with the shrink label 2 is located on the front side with respect to the traveling direction of the conveyance path 4 (indicated by an arrow in FIG. 1). A guide 9 is provided that moves on a center line 8 (indicated by a one-dot chain line in FIG. 3) that runs in the traveling direction.

  As shown in FIGS. 1 and 3, the guide 9 includes a pair of elevating plates 10 screwed to a seat 7 so as to sandwich the conveying path 4, and a center line 8 of the conveying path 4 at the upper ends of both elevating plates 10. The guide plate 11 is screwed so as to be positioned symmetrically with respect to the guide plate 11. The distance between the contact sides 12 facing each other of the guide plates 11 is gradually narrowed in the direction of travel of the transport path 4, and the package 4 in a state where at least the shrink label 2 is covered at the narrowest position. Has an interval that can pass through.

  The height of the guide plate 11 can be adjusted by loosening a pair of screws 13 that fix the elevating plate 10 to the pedestal 7, and the distance between the guide plates 12 can be adjusted. Can be adjusted by loosening a pair of screws 14 that are fixed to the lifting plate 10.

  As shown in FIGS. 1 and 2, the pair of belts 6 are installed above the conveyance path 4 in a state of being positioned symmetrically with respect to the center line 8 of the conveyance path 4. Both belts 6 are bridged over four pulleys 17 attached to a rotating shaft 16 rotatably supported by a pair of support plates 15 and are located above the traveling direction side of the conveying path 4. A rotating shaft 16 that fixes the pair of pulleys 17 to the support plate 15 is connected, and a motor 18 is connected to the rotating shaft 16. The rotational speed of the motor 18 is adjusted so that the rotational speed of the pair of belts 6 is substantially the same as the traveling speed of the conveyance path 4.

  Further, the contact surface 19 facing the conveyance path 4 in both belts 6 is composed of an inclined portion 20 positioned on the near side with respect to the traveling direction of the conveyance path 4 and a parallel portion 21 positioned on the front side. The unit 20 gradually approaches the conveyance path 4 side as the height position from the conveyance path 4 advances from the position higher than the height of the shrink label 2 in the advancing direction of the conveyance path 4, and is the same height position as the height of the shrink label 2 The parallel portion 21 runs parallel to the conveyance path 4 at a height position from the conveyance path 4 that is the same as the height of the shrink label 2. When the packaged body 3 conveyed by the conveyance path 4 passes below the contact surfaces 19 of the pair of belts 6, the lower end of the shrink label 2 does not reach the lower end of the packaged body 3. Under the opening Is moved to the parallel portion 21 after contacting the inclined portion 20 of the contact surface 19, and the lower open end of the shrink label 2 reaches the lower end of the package 3, the lower open end of the shrink label 2 is the contact surface 19. It moves to the parallel part 21 without contacting the inclined part 20.

  The pulleys 17 on which the belts 6 are bridged can move in the axial direction with respect to the rotating shaft 16, and the distance between the belts 6 can be adjusted according to the width of the shrink label 2. it can.

  The belt 6 is preferably formed of a material having a relatively high flexibility so as not to damage the shrink label 2 when contacting the upper end of the opening of the shrink label 2, and may be formed of, for example, a urethane sponge. .

  The blow nozzle 5 is positioned between the pair of belts 6. The blow nozzle 5 has a narrow outlet 22 that blows out air sent from a blower (not shown) facing downward, and the outlet 22 extends along the center line 8 of the transport path 4. The upper end of the opening of the shrink label 2 covered by the package 3 to be conveyed by the conveying path 4 is shrunk from a position before the contact with the inclined portion 20 of the contact surface 19 of one of the belts 6. The upper end of the opening of the label 2 extends to a position reaching the parallel part 21 of the contact surface 19.

  Note that compressed air may be fed into the blower nozzle 5 by a pump.

  Next, the process of positioning the shrink label 2 at a predetermined position of the package body 3 by the shrink label position adjusting device 1 will be described. In the present embodiment, the state where the lower end of the opening of the shrink label 2 reaches the lower end of the package body 3 is the state where the shrink label 2 is positioned at a predetermined position of the package body 3.

  The packaged body 3 covered with the shrink label 2 is first transported by the transport path 4 and passes through the guide 9. At this time, as shown in FIG. 3, when the center of the package body 3 is shifted from the center line 8 of the transport path 4, the package body 3 covered with the shrink label 2 is either guide. It contacts the contact side 12 of the plate 11 and is guided so that the center of the package 3 is positioned on the center line 8 of the transport path 4 as it is transported by the transport path 4.

  Next, the packaged body 3 covered with the shrink label 2 that has passed through the guide 9 passes below the pair of belts 6. At this time, since the air is blown from the blow nozzle 5 installed between the pair of belts 6 toward the center line 8 of the conveyance path 4, when the packaging body 3 passes below the blow nozzle 5, 2, the air blown from the outlet 22 of the blow nozzle 5 collides with the upper portion 23 of the package 3 and is dispersed and flows into the inside of the shrink label 2. The sticking of the shrink label 2 due to water drops is relaxed.

  Then, as shown in FIG. 4, when the lower opening 24 of the shrink label 2 does not reach the lower end 25 of the package 3, first, the shrink label 2 is positioned below the pair of belts at the upper opening 26 of the shrink label 2. A portion (indicated by a cross in FIG. 4) contacts the inclined portion 20 of the contact surface 19. Subsequently, when the package 3 is moved along with the conveyance of the conveyance path 4, a portion of the contact surface 19 that is in contact with the upper opening 26 of the shrink label 2 gradually approaches the conveyance path 4 side. When the shrink label 2 is pressed downward and guided to the lower end 25 side of the package 3 and the portion of the contact surface 19 that is in contact with the upper open end 26 of the shrink label 2 is shifted to the parallel portion 21, shrink. The opening lower end 24 of the label 2 is in a state where it coincides with the lower end 25 of the package 3.

  In addition, since the contact surface 19 and the conveyance path 4 advance at substantially the same speed, the shrink label 2 is passed through the parallel portion 21 after the opening upper end 26 of the shrink label 2 contacts the inclined portion 20 of the contact surface 19. The portion in contact with the contact surface 19 at the upper opening 26 of the second opening continues to maintain the state in contact with the same portion of the contact surface 19.

  The blow nozzle 5 blows air to the inside of the shrink label 2 at least at the portion where the upper end 26 of the shrink label 2 contacts the contact surface 19 and then the portion of the contact surface 19 that contacts the upper end 26 of the shrink label 2. It is necessary to continue until approaching the conveyance path 4 side (between X in FIG. 4).

Embodiment 2. FIG.

  This embodiment is a modification of the guide in the first embodiment. FIG. 5 is a plan view showing a guide in the present embodiment. 6 is a cross-sectional view taken along the line BB showing the guide shown in FIG. In this figure, the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts.

  The guide 9 in the present embodiment extends from the front of the pair of belts 6 to the lower side of the pair of belts 6 in the traveling direction of the conveyance path 4. And the space | interval of the contact side 12 which both guide plates 11 oppose becomes gradually narrow toward the advancing direction of the conveyance path 4 in the part located before a pair of belt 6 with respect to the advancing direction of the conveyance path 4. FIG. After that portion, at least the packaged body 3 can pass and the interval at which the shrink label 2 cannot pass is maintained.

  The guide 9 in this embodiment is applied when the shrink label 2 is positioned at a predetermined position of the package body 3 and the lower open end of the shrink label 2 is positioned in the middle of the package body 3. I can do this.

  When the guide 9 in the present embodiment is applied, the inclined portion 20 on the contact surface 19 of the pair of belts 6 is moved from the position where the height position from the guide plate 11 is higher than the height of the shrink label 2. 4, it is necessary to incline so as to gradually approach the conveyance path 4 side and to be at the same height as the height of the shrink label 2 as it advances in the direction of travel of 4. The position needs to run parallel to the transport path 4 at the same height as the shrink label 2.

It is the side view which showed the shrink label position adjustment apparatus which concerns on Embodiment 1. FIG. It is AA sectional drawing which showed the shrink label position adjustment apparatus shown in FIG. It is the top view which showed the guide of the shrink label position adjustment apparatus shown in FIG. It is explanatory drawing which showed the state which a shrink label moves to the predetermined position of a to-be-packaged body. FIG. 10 is a plan view showing a guide in the second embodiment. It is BB sectional drawing which showed the guide shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shrink label position adjustment apparatus 2 Shrink label 3 Packaged body 4 Conveyance path 5 Blow nozzle 6 Belt 7 Seat 8 Center line 9 Guide 10 Lifting plate 11 Guide plate 12 Contact side 13,14 Screw 15 Support plate 16 Rotating shaft 17 Pulley 18 Motor 19 Contact surface 20 Inclined part 21 Parallel part 22 Air outlet 23 Upper part 24 Lower end of opening 25 Lower end 26 Upper end of opening

Claims (2)

In a shrink label position adjusting device for positioning a cylindrical shrink label placed on a packaged body at a predetermined position of the packaged body before being heat-shrinked, it is conveyed by the conveyance path for conveying the packaged body and the conveyance path. A blow nozzle that feeds air to the inside of the shrink label placed on the package body and a contact surface that is transported by the transport path while gradually moving to the transport path side while traveling in the same direction in a state of being spaced from the transport path. The shrink label is moved to the conveyance path side with respect to the package body in accordance with the conveyance of the package body by the conveyance path by contacting the opening end of the shrink label placed on the package body, and the opening end of the shrink label on the contact surface A pair of belts for positioning the shrink label at a predetermined position of the package body in a state in which the contacting portion is closest to the conveyance path side. When the packaged body passes between the conveyance path and the contact surface in accordance with the conveyance by the conveyance path, the shrink label opens after the opening end of the shrink label comes into contact with the contact surface of one of the belts. A shrink label position adjusting device, characterized in that air is always sent to the inside of the shrink label by the blow nozzle until the portion in contact with the open end of the label is closest to the conveyance path side. A guide for positioning the center of the package body on the center line running in the traveling direction of the transport path by passing the package body transported by the transport path between the pair of guide plates is provided. The shrink label position according to claim 1, wherein the outlet has a narrow width and extends along the center line of the transport path, and air is sent into the inside of the shrink label placed on the packaged body that has passed through the guide by the blow nozzle. Adjusting device.

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