JP2004099174A - Automatic packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillow packaging type automatic packaging machine in which a vertical seal has a notch portion and an easy seal opening is realized without using any expensive packaging film. <P>SOLUTION: A notch forming means 10 for use in forming a notch at a vertical seal part 4 is constituted by a blade rotating member 12 having a notch forming blade 11, an abutting rotary member 13 abutting against the notch forming blade 11, and two guide members 14 keeping a raised state of the vertical seal part 4. A rotary driving of the notch forming means 10 is controlled synchronously with a feeding operation of the packaging film. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to an automatic packaging machine for producing a package in a so-called pillow packaging form (stick packaging form).

2. Description of the Related Art Conventionally, in a roll-type automatic packaging machine as described in Patent Document 1, for example, a notch for opening the package is usually provided. However, in an automatic packaging machine for producing a pillow-wrapped (stick-wrapped) package, a notch for opening is rarely provided. Instead, the packaging film of the packaging machine has a thin film along the longitudinal direction of the film. A preformed surface having a rough surface with a width is used, so that opening can be easily performed without a notch.
JP-A-11-79112

However, the cost of this special packaging film is higher than that of a normal packaging film having no roughened surface, and it has been required to form a notch in the vertical seal portion in a pillow packaging type packaging machine. .

When notches are formed in the vertical seal portion in the pillow packaging form, a notch mechanism will be provided at a position immediately after execution of the vertical seal and before execution of the horizontal seal. There was also a problem that the falling distance of the ball became long.

The present invention has been created in order to solve such technical problems, and a notch is formed in a vertical seal portion so that opening can be easily performed without using an expensive packaging film. It is an object of the present invention to provide an automatic packaging machine in a pillow packaging form in which the notch position can be freely changed in a short state.

In order to achieve the above object, an automatic packaging machine according to claim 1 of the present invention includes a packaging material feeding mechanism that transports a long packaging film while forming it into a tubular shape along a longitudinal direction, and the packaging film. The vertical sealing portion is formed by joining the edges of the vertical sealing portion to form a cylindrical shape, a notch mechanism for making a partial cut for opening the vertical sealing portion, and a predetermined shape of the cylindrical type packaging film. A pillow wrapping type automatic packaging machine comprising a horizontal sealing mechanism for joining the parts at regular intervals to form a horizontal sealing portion and forming an envelope, and a filling mechanism for filling the envelope-like packaging film with a filling material. , The notch mechanism is provided between the vertical sealing mechanism and the horizontal sealing mechanism, and a driving operation of the notch mechanism is controlled in synchronization with a packaging film transport operation.

In the automatic packaging machine according to a second aspect of the present invention, in the automatic packaging machine according to the first aspect, the notch mechanism includes: a blade rotating body having a notch forming blade; It is characterized by comprising a rotating body and a guide member for maintaining the upright state of the vertical seal portion.

According to the automatic packaging machine according to claims 1 and 2 of the present invention, the notch mechanism includes a blade rotating body having a notch forming blade, a contact rotating body that contacts the notch forming blade, and a vertical seal. It is composed of a guide member that maintains the upright state of the part, and the driving operation of the notch mechanism is controlled in synchronization with the packaging film transport operation, so that the notch can be formed reliably during the packaging film transport operation, and The notch position can be freely changed while the falling distance of the contents is short.

As described above, according to the automatic packaging machine according to the present invention, it is possible to provide an automatic packaging machine in a pillow packaging form in which a notch can be reliably provided to a vertical seal portion and a notch position can be freely changed. This has the effect.

Hereinafter, embodiments of the automatic packaging machine according to the present invention will be described with reference to the drawings. The automatic wrapping machine according to the present invention is a so-called vertical automatic wrapping machine (an automatic wrapping machine that performs heat sealing and filling while transferring a packaging film from above to below), and has the same basic structure as a conventional one. Detailed description is omitted.

In FIG. 1, reference numeral 1 denotes a packaging material roll wound around a long packaging film F, which is rotatably supported on a base of an automatic packaging machine. The packaging film 1 pulled out from the packaging material roll 1 is formed into a cylindrical shape along a longitudinal direction by a cylindrical forming former 2 as a forming part.

(2) As shown in FIG. 2, the packaging film F that has passed through the cylinder forming former 2 has its edges 3, 3 along the longitudinal direction thereof in a palm-closed state. Below the tube forming former 2, there is provided a vertical sealing device 5 which joins the edges 3, 3 in the closed state and forms a vertical sealing portion 4 to form a cylindrical shape. The vertical sealing device 5 includes a pair of heat seal portions 5A and 5B, and the heat seal portions 5A and 5B are brought into and out of contact with each other in a horizontal direction by a telescopic rod 6 of an air cylinder.

包装 The packaging film F formed into a tubular shape by the vertical sealing device 5 is made into an envelope shape by the horizontal sealing device 7. Then, the material to be filled is filled through a filling nozzle (not shown), and the horizontal sealing portions 8 are again formed at regular intervals by the horizontal sealing device 7. The horizontal seal device 7 includes a pair of heat seal portions 7A and 7B (located on the back side of 7A in the figure), and has the same structure as the vertical seal device 5.

The cylindrical forming former 2 is provided with a guide 9 for positioning both end edges 3 and 3 along the longitudinal direction of the packaging film F at desired positions substantially orthogonal to the width direction of the packaging film F. In this embodiment, the guide 9 is located at the front of the tube forming former 2 such that the vertical seal portion 4 is located at the center in the width direction of the packaging film F, but the direction of the opening is appropriately set ( (For example, diagonally forward).

ノ A notch forming means 10 for forming a notch in the vertical seal portion 4 is provided between the vertical seal device 5 and the horizontal seal device 7. As shown in FIG. 3, the notch forming means 10 includes a blade rotating body 12 having a notch forming blade 11 and a contact rotating body 13 which comes into contact with the notch forming blade 11. The blade rotating body 12 and the contact rotating body 13 are rotationally driven by a drive shaft (not shown), and the installation space can be realized with a minimum necessary because of the rotational driving type.

The rotation of the notch forming means 10 is controlled by the control unit of the packaging machine in synchronism with and in synchronization with the feeding operation of the packaging film. That is, the control unit of the packaging machine transfers the packaging film by a box motion operation while applying a vertical seal and a horizontal seal to the packaging film to form a pillow package, and moves the packaging film to a preset vertical sealing position. In order to form the notch, the package film transfer operation and the rotational driving operation of the notch forming means 10 are controlled synchronously.

For this reason, a notch can be formed during the transfer operation of the packaging film, and the position of the notch can be freely changed while the falling distance of the contents is short.

Two guide members 14 are provided above and below the notch forming means 10 and between the vertical seal device 5 and the horizontal seal device 7 to maintain the upright state of the vertical seal portion 4 as shown in FIG. ing.

The guide member 14 has a cubic shape as shown in FIG. 5, and is made of an acrylic resin or the like. A cutout 15 is formed on the surface facing the vertical seal portion 4 for guiding the vertical seal portion 4 through and maintaining the upright state.

When the notch forming blade 11 cuts the vertical seal portion 4 by the rotational movement of the notch forming means 10, the guide member 14 has a role of preventing disturbance of the upright state caused by pulling the vertical seal portion 4 in the rotation direction. have.

It is explanatory drawing which shows the principal part of the automatic packaging machine which concerns on this invention. It is a perspective view showing the state where both ends along the longitudinal direction were made into a palming state. It is a side view which shows a notch formation means. It is a perspective view which shows the vertical seal part in which the upright state is maintained by the guide member. It is a (A) top view and (B) front view showing a guide member.

Explanation of reference numerals

F Packaging film 2 Tube forming former (forming part)
3 Edge 4 Vertical Seal 5 Vertical Seal 7 Horizontal Seal 8 Horizontal Seal 10 Notch Forming Means 14 Guide

Claims (2)

A packaging material feeding mechanism that transports a long packaging film while forming it into a cylindrical shape along the longitudinal direction, and a vertical sealing mechanism that joins edges of the packaging film to form a vertical seal portion and forms a cylindrical shape. A notch mechanism for making a partial cut for opening in the vertical seal portion, and a horizontal seal portion formed by joining predetermined portions of the tubular packaging film at regular intervals to form a horizontal seal portion and forming an envelope shape Mechanism, and an automatic packaging machine in a pillow packaging form having a filling mechanism for filling a filler in the envelope-shaped packaging film,
The automatic packaging machine, wherein the notch mechanism is provided between the vertical sealing mechanism and the horizontal sealing mechanism, and a driving operation of the notch mechanism is controlled in synchronization with a packaging film transport operation. The notch mechanism includes a blade rotating body having a notch forming blade, a contact rotating body that comes into contact with the notch forming blade, and a guide member that maintains an upright state of the vertical seal portion. The automatic packaging machine according to claim 1.

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