JP2014162553A - Packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging machine by which gas permeates to both endpoints of inside of a packaging bag to be capable of stably filling gas and liquid.SOLUTION: A packaging machine P comprises the steps of: moving a movable body 2 including a grip pair 1 while intermittently stopping the movable body 2 during a plurality of steps; and filling a packaging material c into a packaging bag a both endpoints of which are supported by the grip pair 1 and sealing a bag mouth b. The packaging machine P includes a pair of gas nozzles 3a and 3b which are used for filling gas or liquid into the packaging bag a supported by the grip pair 1. The gas nozzles 3a and 3b are respectively positioned in the vicinity of both endpoints in the packaging bag a supported by the grip pair 1.

Description

  The present invention relates to a packaging machine that fills a packaging bag with gas or liquid together with an article to be packaged.

  As shown in FIG. 12, as a method of filling a packaging bag with gas or liquid together with an article to be packaged, it is supported in a suspended manner by a grip pair (not shown) of the packaging machine in the filling process of the article to be packaged. The step (1) of opening the bag mouth b of the packaging bag a and the funnel d having the packaging object c disposed therein are lowered and inserted into the packaging bag a. After performing the step (2), (3) or (4) for pushing and filling the packaging bag a into the packaging bag a from the bag mouth b, and the step (5) for raising the funnel d, the nozzle f is turned on. It was lowered and inserted near the center of the packaging bag a to perform gas filling (6) or (7).

  However, in the conventional packaging machine, since one nozzle f is inserted into the center of the packaging bag a to inject the gas or liquid, there is a tendency that the gas or liquid does not easily penetrate to both ends of the packaging bag a.

Japanese Patent No. 5017561

  Then, the subject of this invention is providing the packaging machine which gas and a liquid osmose | permeate to the both ends in a packaging bag, and can be filled with gas and a liquid stably.

  In order to achieve the above object, a moving body having one or a plurality of grip pairs is intermittently stopped and moved in a plurality of steps, and a package bag supported at both ends by the grip pairs is filled with an object to be packaged. A packaging machine for sealing a bag mouth, the packaging machine having a pair of nozzles for filling a gas or liquid into a packaging bag supported by the grip pair, The packaging machine is configured to be arranged near both ends in a packaging bag supported by a grip pair.

  It is preferable that the pair of nozzles is configured to be inserted into a packaging bag whose both ends are supported by the grip pair prior to filling of an object to be packaged. The pair of nozzles are inserted from near the center of the opening of the bag mouth of the packaging bag supported at both ends by the grip pair, and then move toward both sides in the packaging bag, It is preferable that it is comprised so that it may each be arrange | positioned near both sides.

According to the packaging machine of Claim 1, gas and a liquid osmose | permeate to the both ends in a packaging bag, and it becomes a packaging machine which can be filled with gas and a liquid stably.
According to the packaging machine of the second aspect, in addition to the effect of the first aspect, since the nozzle is inserted and arranged in the packaging bag before filling the package object, the nozzle is stuck in the package object, The object to be packaged is not clogged at the tip of the nozzle, and even if the object to be packaged has a light and bulky property such as a shaving node, it does not hinder the filling operation by rising at the time of gas filling.
According to the packaging machine of the third aspect, in addition to the effect of the first or second aspect, the nozzle is inserted from the vicinity of the center of the bag mouth that is more open than both ends. It can be inserted into a packaging bag.

It is the plane schematic of one Example of the packaging machine of this invention. It is the right side schematic of the packaging machine shown in FIG. It is explanatory drawing for demonstrating a series of packaging processes in the packaging machine shown in FIG. It is explanatory drawing for demonstrating a series of packaging processes in the packaging machine shown in FIG. It is explanatory drawing for demonstrating operation | movement of the nozzle in a series of packaging processes of the packaging machine shown in FIG. FIG. 2 is an enlarged plan view of the vicinity of a moving body of the packaging machine shown in FIG. 1. FIG. 2 is an enlarged side view of the vicinity of a moving body of the packaging machine shown in FIG. 1. It is an expanded view of the guide rail distribute | arranged to the outer periphery of the moving body of the packaging machine shown in FIG. It is a top view of the nozzle holder of the packaging machine shown in FIG. It is a top view for demonstrating an effect | action of the nozzle holder shown in FIG. It is explanatory drawing for demonstrating the effect | action of the nozzle in the packaging machine shown in FIG. It is explanatory drawing for demonstrating the gas filling method in the conventional packaging machine.

  In the present invention, since the pair of nozzles 3a and 3b are respectively disposed at both ends in the packaging bag a, the gas and liquid can penetrate to both ends so that the gas and the liquid can be stably filled with the packaged object. Realized the machine.

A packaging machine according to the present invention will be described with reference to an embodiment shown in FIGS.
The packaging machine P of this embodiment intermittently stops and moves the moving body 2 provided with the grip pair 1 in a plurality of steps, and fills the packaging bag a with both ends supported by the grip pair 1 with the object to be packaged c. And a pair of nozzles 3a, 3b for filling gas or liquid in the packaging bag a supported by the grip pair 1, and the pair of nozzles 3a, 3b is comprised so that it may each be distribute | arranged near the both ends in the packaging bag a supported by the grip pair 1. FIG. Hereinafter, each configuration will be described in detail.

  As shown in FIG. 1 or 2, the gas filling type packaging machine P of the present invention includes a moving body 2, a bag supply device 50, an article filling means 60, an inert gas supply device, and the like.

  As shown in FIG. 3 or FIG. 4, the gas filling type packaging machine P has a bag feeding process (1), a printing process (2) such as the expiration date, a nozzle insertion / bag opening / printing inspection process (3), a package Product filling / pushing step (4), step (5) for blowing off articles to be packaged adhering to the bag mouth, temporary seal / nozzle insertion confirmation step (6), gas filling / brushing / side pushing step (7) or ( 8) The left side nozzle ascending step (9), the top seal / right side nozzle ascending step (10), the seal cooling step (11), and the product discharging step (12), and then the article to be packaged c is put into the packaging bag a. It is a device for filling.

  In addition, the package to be handled in this embodiment is a shaving node having a net amount of 500 g that is light and easy to rise. The size of the packaging bag is 340 mm to 380 mm in width and 400 to 550 mm in length. This embodiment is a rotary type gas filling type packaging machine P, but can also be applied to a known linear movement type packaging machine.

  In this packaging machine P, as shown in FIG. 7, a stand 5 that freely supports a longitudinally oriented intermittent rotating shaft 4 is provided on a machine base 6, and a moving body attached to an upper end portion of the intermittent rotating shaft 4. As shown in FIG. 6, twelve grip pairs 1 for gripping or releasing the packaging bag a protrude in the radial direction at equal angular intervals around the intermittent rotation shaft 4 as shown in FIG. It is provided as follows.

  7a and 7b are guide bars for raising and lowering the nozzle holder 8 in order to insert or remove the nozzles 3a and 3b in the packaging bag a, and the nozzle insertion / bag opening / printing inspection process (3) and the left side It is provided between the nozzle raising step (9) and the top seal / right nozzle raising step (10).

  Reference numerals 9a and 9b denote elevating bodies attached to the guide bars 7a and 7b so as to be elevable. As shown in FIG. 6, these elevating bodies 9a and 9b are arranged between a nozzle insertion / bag opening / printing inspection process (3), a left nozzle raising process (9), and a top seal / right nozzle raising process (10). The rotational force of the motor 10 is transmitted through the transmission mechanism 11, the shaft 12, and the link mechanism 13, so that in the nozzle insertion / bag opening / printing inspection step (3), the elevating body 9a is moved. The nozzle holder 8 is lowered along the guide bar 7a and the nozzles 3a and 3b are inserted into the packaging bag a. On the other hand, between the left nozzle raising step (9) and the top seal / right nozzle raising step (10), the elevating body 9b is raised along the guide bar 7b, and the nozzle holder 8 is raised accordingly. The nozzles 3a and 3b are removed from the bag a.

  14 is a sliding shaft to which the nozzle holder 8 is mounted so that it can be moved up and down, and three sliding shafts extend in the vertical direction on the outer periphery of the movable body (disk-shaped rotating body) 2 corresponding to each step. The nozzle holder 8 is also configured to move together with the sliding shaft 14 as the moving body (disk-shaped rotating body) 2 rotates intermittently.

  The bag feeding device 50 arranged in the bag feeding step (1) separates a large number of packaging bags a stacked on a supply table one by one from above by an adsorbing means equipped with a suction cup, with the bag mouth b facing up. It is configured in a known structure that supplies the grip pair 1 in a suspended state.

  The package filling means 60 is disposed in the package filling / pushing step (4), and the funnel 15 is formed by a first drive mechanism (not shown) comprising a mechanism in which a servo motor device and a slide unit are combined. It can be moved up and down. The funnel 15 has a trumpet-shaped upper opening that expands upward, and a discharge opening provided at the lower portion of the integrally formed cylindrical body.

  Reference numeral 16 denotes a push rod for pressing the object to be packaged. The push bar 16 has a hook shape in which a cylindrical head is fixed to the lower part of a linear handle, and a stroke within a predetermined range by a second drive mechanism (not shown) including a servo motor device and a slide unit (not shown). It can be moved up and down.

  Further, in addition to the vertical movement of the push rod 16 by the second drive mechanism, the push rod 16 can be reciprocated with a small stroke by an actuator (not shown) such as a pneumatic cylinder, so that the cutting node (package) is pressed. The pressing release operation is repeatedly performed so that the bulk of the shaving node can be promoted.

  Reference numeral 70 denotes a rotary valve of the inert gas supply device. The rotary valve 70 has a structure in which a ring-shaped valve body is rotatably mounted on a central valve shaft. The valve body has 24 gas supply holes communicating with a gas passage of the valve shaft. Is provided. The valve body is provided so as to rotate together with the moving body 2, and the gas supply hole and the nozzles 3 a and 3 b are respectively connected by a flexible tube (not shown). The rotary valve 70 is configured to be supplied with an inert gas such as nitrogen gas or carbon dioxide adjusted to a predetermined pressure (0.1 to 0.3 MPa).

  Reference numerals 17 and 18 are guide rails provided concentrically with the movable body (disk-shaped rotating body) 2, and the guide rail 17 is formed from the first step, the second step, and the tenth step as shown in FIG. Between the 12th process, it is comprised along the horizontal direction in the upper position. On the other hand, the guide rail 18 is configured along the horizontal direction at a lower position between the third step and the ninth step.

  The guide rails 17 and 18 are fixed so as not to move even if the movable body (disk-shaped rotator) 2 rotates intermittently, and the guide rails 17 and 18 of the nozzle holder 8 that rotates and moves with the movable body (disk-shaped rotator) 2. The elevating rollers 19 and 20 and the nozzle opening / closing roller 21 are configured so that the nozzle holder 8 moves to each step by rolling along the guide rails 17 and 18.

  As shown in FIG. 9, the nozzle holder 8 pulls the pair of nozzles 3a and 3b and the nozzles 3a and 3b outward to open the lower portions of the nozzles 3a and 3b to increase the separation distance. Elastic bodies 22a and 22b, elevating rollers 19 and 20 shown in FIG. 11, and a nozzle opening and closing roller 21 for opening and closing the nozzles 3a and 3b.

  The nozzle holder 8 is provided so as to be able to move up and down along the two sliding shafts 14, and the lifting rollers 19, 20 and the nozzle opening / closing roller 21 are engaged with the lifting body 9 a or the lifting body 9 b to move up and down. In this case, the slide shaft 14 is configured to move up and down.

  Further, as shown in FIG. 8 or FIG. 11, nozzle opening / closing rails 23a, 23b are provided along the guide bar 7a in the third step, and these nozzle opening / closing rails 23a, 23b are provided at the upper part and the lower part. However, the separation distance is narrow and the middle part is wide. When the nozzle holder 8 is lowered along the nozzle opening / closing rails 23a and 23b, as shown in FIG. 10, the nozzle opening and closing rails 23a and 23b are formed on the outer surfaces of the nozzle opening / closing rails 23a and 23b having a wide separation distance. Since the roller 21 is located, the nozzles 3a and 3b rotate around the rotation fulcrums 24a and 24b, and the separation distance below the nozzles 3a and 3b is reduced. Further, when the nozzle holder 8 is lowered to the lower part of the nozzle opening / closing rails 23a, 23b, the separation distance between the nozzle opening / closing rails 23a, 23b is narrow, so that the state shown in FIG. 9 is restored and the nozzles 3a, 3b are returned. It is configured so that the distance between the lower portions of the first and second lower portions becomes larger and open.

  The packaging machine of the present invention will be described in the packaging process. First, in the bag feeding process (1), as shown in FIG. 3, the bag of the packaging bag a provided by the bag feeding apparatus 50 is taken. As shown in FIG. 5, the packaging bag a is supported by the grip pair 1 in a suspended manner.

  In this step (1), the nozzles 3a and 3b are located above the packaging bag a. Specifically, the nozzle holder 8 is at the position A in FIG. 11, and the lifting rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 are located in the guide rail 17. That is, since the elevating rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 roll on the guide rail 17 by the intermittent rotation of the moving body 2, the nozzles 3a and 3b are held at the upper position.

  In the printing process (2) such as the expiration date, the expiration date and the like are printed on the packaging bag a by the thermal printer as shown in FIG. Also in this step (2), the nozzles 3a and 3b are positioned above the packaging bag a as shown in FIG. 5 as in the step (1).

  In the nozzle insertion / bag opening / printing inspection step (3), as shown in FIG. 3, the bag mouth b is opened by the suction cup, and the printing printed in the printing step (2) such as the expiration date is appropriately performed. An inspection is performed. Further, after the nozzles 3a and 3b are inserted from the opening of the bag mouth b in a state where the lower portions of the nozzles 3a and 3b are closed (FIG. 10), the lower portions of the nozzles 3a and 3b are opened (state of FIG. 9) Each is moved and arranged.

  More specifically, in the nozzle insertion / bag opening / printing inspection process (3), the nozzles 3a and 3b are placed on the guide bar 7a at the upper position, the lifting body 9a, the lifting rollers 19 and 20, and the nozzle opening / closing roller 21. Engage and descend as shown in FIG. Accordingly, at the position B, the nozzles 3a and 3b are closed (FIG. 10). After being inserted from the opening of the bag mouth b in this state, the nozzles 3a and 3b are opened at the position C. (State of FIG. 9) It is configured to move to both sides in the packaging bag a.

  Thus, since the nozzle is inserted from the vicinity of the center of the bag opening that is more open than both ends, the packaging machine P of this embodiment can insert the nozzle into the packaging bag more reliably. In addition, since the nozzle is inserted and placed in the packaging bag before filling the packaged item, the nozzle is not stuck in the packaged item, and the packaged item is not clogged at the tip of the nozzle. Even if it has a bulky property, it does not hinder the filling operation due to rising at the time of gas filling. Furthermore, since the nozzles are disposed at both ends of the packaging bag, gas can penetrate to both ends and stable gas replacement can be performed.

  In the to-be-packaged material filling / pushing step (4), as shown in FIG. 3, the to-be-packaged product c is put into the packaging bag a through the funnel 15 and is pushed in by the pushing rod 16.

  In the step (5) of blowing off the object to be packaged adhering to the bag mouth b, the object to be packaged c adhering to the bag mouth b is blown away and, as shown in FIG.

  In the temporary seal / nozzle insertion confirmation step (6), as shown in FIG. 4, is a temporary seal being applied near the bag mouth b and whether the lower portions of the nozzles 3a and 3b are inserted into the packaging bag a? Is confirmed.

  In the gas filling / brushing / side pushing process (7) or (8), as shown in FIG. 4, the packaging bag a is shaken and shaken by vibration means (not shown) and ejected from the nozzles 3a and 3b. The inert gas is replaced with the air in the packaging bag a.

  During the steps (4) to (8), as shown in FIG. 8, the lifting rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 are located in the guide rail 18. That is, since the elevating rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 roll on the guide rail 18 by the intermittent rotation of the moving body 2, the nozzles 3a and 3b are held at the lower position.

  In the left nozzle raising step (9), when the moving body 2 is viewed in plan view, it rotates clockwise, so the left nozzle reaches this ninth step before the right nozzle, and the left nozzle guides first. Ascending toward the upper position where the rail 17 is located. Specifically, as shown in FIG. 11, the elevating body 9b, the elevating roller 19 and the nozzle opening / closing roller 21 that are waiting at the lower position on the guide bar 7b are engaged and raised. Along with this, as shown in FIG. 4, the left nozzle 3a rises and is removed from the packaging bag a.

  In the top seal / right nozzle raising step (10), as shown in FIG. 4, after the right nozzle is lifted and removed from the packaging bag a, air is removed and the vicinity of the bag mouth b is sealed horizontally. Is done. The raising of the right nozzle is also performed in the same manner as the left nozzle in the ninth step, that is, the raising / lowering body 9b, the raising / lowering roller 20 and the nozzle opening / closing roller 21 that are waiting at the lower position on the guide bar 7b are engaged and raised. Along with this, the right nozzle 3b rises and is removed from the packaging bag a.

  Further, through the seal cooling step (11) and the product discharge step (12), the packaging bag a in which the article to be packaged C is discharged is discharged outside the apparatus. As shown in FIG. 8, during the above steps (10) to (12) and between (1) and (2), the lifting rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 are guides. Located in the rail 17. That is, since the elevating rollers 19 and 20 and the nozzle opening / closing roller 21 of the nozzle holder 8 roll on the guide rail 17 by the intermittent rotation of the moving body 2, the nozzles 3a and 3b are held at the upper position.

P Packaging machine 1 Grip pair 2 Moving body 3a, 3b Nozzle 4 Intermittent rotating shaft 5 Stand 6 Machine base 7a, 7b Guide bar 8 Nozzle holder 9a, 9b Lifting body 10 Motor 11 Transmission mechanism 12 Shaft 13 Link mechanism 14 Slide shaft 15 Funnel 16 Push rods 17, 18 Guide rails 19, 20 Lift roller 21 Nozzle opening / closing rollers 22a, 22b Elastic bodies 23a, 23b Nozzle opening / closing rails 24a, 24b Rotating fulcrum 50 Bag supply device 60 Packaging material filling means 70 Rotary valve
a Packaging bag b Bag mouth k Sharpening section (package)

Claims (3)

A moving machine provided with a grip pair is intermittently stopped in a plurality of steps and moved, and a packaging machine for filling a packaging bag supported at both ends by the grip pair and sealing a bag mouth,
The packaging machine has a pair of nozzles for filling a gas or liquid into a packaging bag supported by the grip pair,
The pair of nozzles is configured to be disposed near both ends in a packaging bag supported by the grip pair, respectively.   The packaging machine according to claim 1, wherein the pair of nozzles is configured to be inserted into a packaging bag supported at both ends by the grip pair prior to filling of an object to be packaged.   The pair of nozzles are inserted from near the center of the opening of the bag mouth of the packaging bag supported at both ends by the grip pair, and then move toward both sides in the packaging bag, The packaging machine of Claim 1 or 2 comprised so that it may each be arrange | positioned near both sides of.

Images