JP2008105708A - Packaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a packaging apparatus which packages a plate-form article having a thickness such as a book or a magazine. <P>SOLUTION: This packaging apparatus has an air blowing head section, a supporting rod, an urging means, a bag holding pin, and a receiving base section. The air blowing head section includes a blow-out port the bottom surface of which is opened to be wide in the lateral width direction. The supporting rod is fixed to the air blowing head section and holds the air blowing head section. The urging means urges the air blowing head section in the approaching direction of the machine main body. The bag holding pin is fixed to the air blowing head section, and suspends a packaging bag. The receiving base section is fixed to the front surface of the machine main body, and pinches the tongue piece section of the packaging bag which is suspended by the bag holding pin with the air blowing head section in a manner to be wide in the lateral width direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an improvement in a packaging apparatus for packaging a plate-like article having a thickness such as a book or a booklet.

In order to prevent books and booklets from being read, and to prevent dirt and damage, retailers must individually store and seal books and booklets in synthetic resin film packaging bags. Since the edges are widened and books and booklets are manually inserted into the opening while adjusting the shape of the widened opening, this is a laborious and cumbersome operation.
Therefore, as a configuration for automatically expanding the opening edge of the packaging bag by blowing air into the packaging bag, for example, a packaging machine disclosed in JP-A-9-77029 is known.
However, in this configuration, the packaging bag has a generally cylindrical opening for storing fruits and vegetables, and the cylindrical hopper is inserted to store the fruits and vegetables in the packaging bag. In order to insert it, it was not possible to insert it until the opening widened as in the past was manually made into a rectangle.
Refer to FIG. 11 in Japanese Patent Laid-Open No. 9-77029.

  The present invention has been made in view of the above circumstances, and the main problem is that the upper portion of the opening of the packaging bag is broadly pressed in the lateral width direction by the blowing head portion, and air is discharged from the bottom portion of the blowing head portion to An object of the present invention is to provide a packaging apparatus that can smoothly insert a plate-shaped article having a thickness such as a book or a booklet into a packaging bag by expanding the opening into a substantially rectangular shape.

In order to solve the above problem, the invention of claim 1
In the packaging device that opens the bag opening with the blowing force of the air blown from the air source and wraps the article to be wrapped,
A blower head portion connected to an air source to introduce air and having a blowout port formed on the lower surface;
A support rod having one end fixed to the blower head portion and the other end slidably held by the body body, and holding the blower head portion movably in a direction approaching or separating from the body body;
A biasing means for biasing the blower head portion in a direction approaching the body body;
One end is fixed to the blower head part, and when the blower head part is separated from the main body, the other end is opened and a bag holding pin capable of inserting a packaging bag,
A resin film packaging bag suspended from a holding hole on the bag holding pin;
It is formed on the front surface of the main body, and includes a support base and a cradle part that slidably holds the protruding end side of the bag holding pin,
The packaging bag suspended from the bag holding pin is squeezed widely in the widthwise direction between the blowing head portion urged by the urging means and the cradle portion, and air is discharged from the outlet of the blowing head portion. Thus, the opening of the packaging bag can be opened widely to insert a plate-shaped article.
In the invention of claim 2,
The packaged article is composed of a plate-shaped article having a thickness such as a book or a booklet,
The blower head part is characterized in that a blower opening that is wide open in the width direction is formed on the lower surface.
Furthermore, in the invention of claim 3,
The rear wall surface portion of the blower head portion and the front wall surface portion of the cradle portion sandwiching the packaging bag in the front and rear are substantially vertical surfaces.
In the invention of claim 4,
A front wall surface portion of the blower head portion is formed of a substantially vertical surface, and is formed on a guide surface when the plate-shaped article is inserted into the packaging bag.

Since this invention is comprised as mentioned above, the tongue piece part of a packaging bag is pinched by the urging | biasing force of an urging means between a ventilation head part and a receiving stand part.
And the opening part of a packaging bag can be opened by the air discharged from the blower outlet formed in the lower surface of a ventilation head part, and a to-be-packaged article can be easily inserted in a packaging bag from the said opening. .
In addition, the packaging bag into which the article to be packaged is inserted is separated from the bag holding pin and proceeds to the next packaging process, but the blower head portion is urged toward the machine body by the urging means. The tongue piece portion is always pinched and regulated, and the opening edge of the next packaging bag can be repeatedly opened widely in the lateral width direction by discharging air.
Further, in the case where the article to be packaged is a plate-like article having a thickness such as a book or a booklet, the blower head portion forms a blow-out opening that is wide open in the width direction on the lower surface, so the tongue piece portion of the packaging bag Is widely contacted in the lateral width direction between the blower head portion and the cradle portion, and is pressed by the urging force of the urging means.
The opening edge of the packaging bag can be opened wide in the width direction by the air discharged from the blowout port, and a plate-like article having a thickness such as a book or booklet is easily inserted into the packaging bag from the opening. can do.

In this invention, the packaging bag is pinched by the blower head part and the cradle part, air is blown into the opening part to widen the opening part in the lateral width direction, and it is easy to insert the plate-shaped article, thereby simplifying the configuration. And improvement of work efficiency.
Hereinafter, a preferred embodiment when the packaging apparatus of the present invention is applied to a packaging apparatus such as a book or a booklet will be described with reference to the drawings.

The packaging device 1 opens the opening 11 of the packaging bag 10 with the blowing force of air blown from an air source, and packages the plate-like article B having a thickness such as a book or a booklet.
The packaging device 1 has a body body 2 supported by a stand S as shown in FIGS. 1 and 7 to 8.

[Airframe body]
The machine body 2 has a support rod 4 having a biasing means 5 and a blow head part 3 having a bag holding pin 6 and a receiving part 7 formed on the machine body 2 at the upper part. The width adjustment mechanism 8 that guides the storage of the plate-like article B in the packaging bag 10 is provided in the middle position, and a seal portion 9A and a shrink portion 9B are provided below the mechanism.

[Blower head]
The blower head section 3 is made of a metal and has a substantially box shape, which is a rectangular parallelepiped casing in the illustrated example, and has a lateral width that is at least half the lateral width of the packaging bag 10 described later.
As an example, the blower head unit 3 is a rectangular parallelepiped having a length of about 15 cm, a width of about 12 cm, and a thickness of about 1.5 cm. However, the present invention is not limited to the above dimensions.

This blowing head unit 3 stands vertically, and the air sent from the blower as an air source built in the machine body 2 is provided above the rear wall surface of the blowing head unit 3 through the duct D. It introduce | transduces from the opening part 3b.
In addition, a part of the lower surface of the blower head portion 3 is opened in a horizontal series to form an air outlet 30.

  In the case of the present embodiment, it has a cover piece portion 32 that bends at right angles from the front wall surface 31 to the center of the blower head portion 3, and the space from the center to the rear wall surface 33 is opened to form the outlet 30. ing. In addition, in the figure, 34 is a ceiling wall surface of the ventilation head part 3 (refer FIG. 2).

[Support rod]
The support rod 4 is fixed to the rear wall surface 33 of the blowing head unit 3 and extends toward the body body 2, and supports the blowing head unit 3 so as to be slidable in a direction approaching or separating from the body body 2.
In the case of the illustrated example, the support rod 4 extends rearward of the front wall 2 </ b> A of the machine body 2 through the cradle 7 provided on the front wall 2 </ b> A of the machine body 2.

A cylindrical bearing portion 21 that slidably supports the support rod 4 is integrally formed on the front wall portion 2A before and after the front wall portion 2A.
A large-diameter retaining portion 4 a is integrally formed at the tip of the support rod 4 protruding from the bearing portion 21.

[Energizing means]
In the case of this embodiment, the urging means is composed of a compressed coil spring 5 externally fitted to the support rod 4 between the bearing portion 21 and the retaining portion 4a. The air blowing head unit 3 is urged in a direction approaching the machine body 2.
In the present invention, the urging means may be a known urging means such as a spring material. In short, the urging means urges the blowing head unit 3 in the direction approaching the body body 2 via the support rod 4. That's fine.

[Bag holding pin]
In the case of the present embodiment, the bag holding pin 6 is fixed to the blower head portion 3 and extends toward the main body 2, and moves forward and backward in conjunction with the support rod 4.
Here, the bag holding pins 6 are provided in a pair on the left and right sides at a predetermined interval.

The bag holding pin 6 is slidably inserted into the hole 7a of the cradle part 7 provided at the front wall part 2A of the airframe main body 2 so that the air blowing head part 3 can move forward and backward. It is supposed not to be.
When the bag holding pin 6 is long as in the illustrated example, the front wall 2A of the main body 2 may be provided with an insertion hole 2a so as to be slidable as in the case of the support rod 4.

[Packaging bag]
In the case of the present embodiment, the packaging bag 10 is composed of a rectangular resin film having a bag shape in which the front surface 12 and the back surface 13 are overlapped to form the opening 11 at the top, and one side which is the back surface 13 side is the opening. 11 is a tongue piece portion 15 having a suspension hole 14 extending through the bag holding pin 6 and made of a resin film suspended from the bag holding pin 6 (see FIG. 6).

The suspension holes 14 are provided in a pair of left and right in the tongue piece portion 15 so as to be aligned with the interval between the bag holding pins 6.
Further, the tongue piece portion 15 is set to a length that makes contact with the lower portion of the blowing head portion 3, and the opening portion 11 is arranged below the outlet 10 of the blowing head portion 3. .

[Reception unit]
The cradle part 7 is composed of a box-like pedestal part fixed in front of the front wall part 2A of the main body 2 and the main wall part 71 is set to be a flat vertical surface, as described above. The support rod 4 is slidably supported by the shaft.
In addition, the cradle part 7 has the tip of the bag holding pin 6 inserted and retracted, and the bag holding pin 6 is also slidably held in conjunction with the sliding of the support rod 4.

[Width adjustment mechanism]
The packaging device 1 is provided with a width adjusting mechanism 8 at the midway position of the machine body 2 that can adjust the horizontal width interval in the left-right direction and the vertical width position of the bottom portion.
The width adjusting mechanism 8 includes a pair of left and right side plates 81 that project at right angles to the front wall portion 2A of the main body 2 and extend in the vertical direction, and a width adjusting device that adjusts the width of the pair of side plates. 82, similarly, a bottom plate 83 that protrudes perpendicularly to the front wall 2A and extends in the left-right direction, and a vertical width adjusting device 84 that adjusts the bottom plate in the vertical direction.

The width adjusting mechanism 8 guides the left and right sides and the bottom of the packaging bag 10 suspended from the bag holding pin 6.
Therefore, when the plate-like article B such as a book or a booklet is stored in the packaging bag 10, the packaging bag 10 is prevented from swinging to the left and right and the bottom from coming off.

[Seal / Shrink]
In the lower part of the machine body 2 of the packaging device 1, a seal portion 9 </ b> A that melts and welds the opening 11 of the packaging bag 10 in which the plate-shaped article B is stored, and a shrink that makes the sealed packaging bag tightly adhere to the plate-shaped article. Part 9B.
The seal portion 9A and the shrink portion 9B use a known configuration provided in a horizontal series (see FIGS. 7 and 8).

[How to use packaging equipment]
Since it consists of the said structure, first, as shown in FIG. 2, the ventilation head part 3 is pulled out against the urging | biasing force, and several packaging bags 10 are put on the bag holding pin 6 which came out from the cradle part 7, The blowing head unit 3 is returned by being held through the suspension hole 14.
The blowing head unit 3 is urged toward the main body 2 by the spring force of the coil spring 5, and accordingly, the tongue piece 15 of the packaging bag 10 is clamped between the receiving head unit 7 by the blowing head unit 3. Then, the packaging bag 10 is set at the standby position.

Next, as shown in FIG. 3, air is blown from the blowing source, and the air is discharged obliquely downward toward the opening 11 of the packaging bag 10 from the outlet 30 of the blowing head unit 3.
As a result, the opening 11 of the packaging bag 10 opens wide in the width direction along the shape of the outlet 30 (see FIG. 6B), so that the plate-like article B such as a book or a booklet can be smoothly inserted into the opening 11. (See FIG. 4).

  When a book or booklet is inserted into the packaging bag 10, the packaging bag 10 is dropped from the bag holding pin 6 due to its own weight and dropped from the bag holding pin 6, and those that do not fall are pulled downward and separated from the bag holding pin 6. Then, the process proceeds to the fusing welding by the seal part 9A and the vacuum adhesion process by the shrink part 9B, which are the next packaging process.

  Further, when a book or booklet is inserted and the packaging bag 10 is removed from the bag holding pin 6, the spring force of the coil spring 5 approaches the receiving table 7 side by the thickness of the bag 10 from which the blower head 3 is removed. Since the next packaging bag 10 can be pinched in the same manner, the opening of the packaging bag 10 can be widened in the widthwise direction as described above by discharging air from the blower head 3 (see FIG. 5).

  In the above-described embodiment, the configuration in which the air blowing head unit 3 is erected vertically is illustrated. However, in the present invention, the air discharged from the air blowing head unit 3 is broad in the lateral width direction and oblique to the opening of the packaging bag 10. What is necessary is just to be discharged downward, and it is not limited to the example of illustration.

Moreover, although the said Example demonstrated the case where it applied to packaging apparatuses, such as a book and a booklet, this invention can change suitably the shape of a delivery head not only according to the said article | item but according to the shape of the article to be packaged.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

It is a side view which shows the principal part of the body main body of the packaging apparatus of Example 1. FIG. It is a principal part side view which shows the state which mounts | wears with a packaging bag. It is a principal part side view of the state which blows off air holding a packaging bag. It is a principal part side view of the state which inserts a plate-shaped article into a packaging bag. It is a principal part side view in the state where one packaging bag was removed. (A) is a front view of a packaging bag, (b) is a perspective view of the state which the opening part opened. It is a front view of a packaging apparatus. It is a side view of a packaging apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging apparatus 2 Machine body 2A Front wall part 2a Hole 3 Blower head part 3b Inlet part 4 Support rod 5 Coil spring 6 Bag holding pin 7 Receptacle part 8 Width adjustment mechanism 10 Packaging bag 11 Opening part 30 Outlet B Plate shape Article

Claims (4)

In the packaging device that opens the bag opening with the blowing force of the air blown from the air source and wraps the article to be wrapped,
A blower head portion connected to an air source to introduce air and having a blowout port formed on the lower surface;
A support rod having one end fixed to the blower head portion and the other end slidably held by the body body, and holding the blower head portion movably in a direction approaching or separating from the body body;
A biasing means for biasing the blower head portion in a direction approaching the body body;
One end is fixed to the blower head part, and when the blower head part is separated from the main body, the other end is opened and a bag holding pin capable of inserting a packaging bag,
A resin film packaging bag suspended from a holding hole on the bag holding pin;
It is formed on the front surface of the main body, and includes a support base and a cradle part that slidably holds the protruding end side of the bag holding pin,
The packaging bag suspended from the bag holding pin is squeezed widely in the widthwise direction between the blowing head portion urged by the urging means and the cradle portion, and air is discharged from the outlet of the blowing head portion. A packaging device characterized in that a plate-shaped article can be inserted with a wide opening of the packaging bag. The packaged article consists of a plate-like article having a thickness such as a book or booklet,
The packaging apparatus according to claim 1, wherein the blower head portion is formed with a blowout opening that is wide open in a lateral width direction on a lower surface.   The packaging device according to claim 1 or 2, wherein a rear wall surface portion of the blower head portion and a front wall surface portion of the cradle portion sandwiching the packaging bag between the front and rear sides are substantially vertical surfaces.   The packaging apparatus according to claim 3, wherein the front wall surface portion of the blower head portion is formed of a substantially vertical surface, and is formed on a guide surface when the plate-shaped article is inserted into the packaging bag.

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