JPH0829770B2 - Net bag making and packing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a net bag-made filling and packaging method by a vertical bag-making filling and packaging machine, and more particularly to a net-bag filling and packaging method in which a mouthpiece can be attached to a mesh mouth. .

<Conventional technology and its problems> Conventionally, in order to wrap potatoes and the like with a bag-making filling and packaging machine,
A mesh bag was used as the wrapping paper to avoid the airtightness, and it was performed as shown in FIGS. 4 (a) to 4 (f). Explaining it, first, as shown in FIG. 4 (a), a heat-soluble net material 1 cut into a continuous strip is guided to a former 2 and bent into a tubular shape, and is guided so as to wrap the cylinder 3 and the net material. Both edges 1a of 1 are raised from the cylinder 3 and matched. Then, both edges 1a of the net material 1 are back-lined and sealed with a vertical sealer 4 to form a net cylinder 5,
The net feed rolls 6, 6 are slightly rotated to feed the net cylinder 5 downward, the vertical sealer 4 is closed again to extend the backing seal, and the net cylinder 5 is drawn downward from the cylinder 3 to the lower end edge of the net cylinder 5. The horizontal seal 7 is provided, and a portion above the horizontal seal 7 is sandwiched by a pair of shutters 8.

Next, as shown in FIG. 4B, the potato 9 is dropped inside the cylinder 3 and is received by the pair of shutters 8.
As shown in Figure (c), open the shutter and
Is dropped to the side seal 7, and then, as shown in FIG.
As shown in FIG.
Is extended downward by the bag length.

Then, as shown in FIG. 4 (e), the two pairs of horizontal sealers 10 and 11 are closed, and two horizontal seals are provided above the taro 9 of the mesh tube 5. The horizontal seal 12 by the horizontal sealer 11 is the horizontal seal of the packaging completion, and the horizontal seal 7 by the horizontal sealer 10
Is a horizontal seal for the next bag.

Also, while the mesh tube 5 is being clamped by the two pairs of horizontal sealers 10 and 11, it is fed a little, and the cutter 13 between the horizontal sealers 10 and 11 on one side is projected to cause a gap between the horizontal seals 12 and 7. Cut sideways.

Finally, as shown in FIG. 4 (f), when the horizontal sealer and the cutter are retracted, the bag 14 containing the taro 9 drops.

With the above, one packaging cycle is completed, and again, FIG. 4 (a).
Move on to.

As described above, in bag filling filling packaging such as potatoes,
I used a mesh bag that could not be printed.

However, you can adjust the shape of the net bag that contains the potatoes,
It has been requested to provide a bag-making filling and packaging machine that can put a mouth paper on the mesh mouth for the purpose of making it easier to hold, or adding a trademark, the date of manufacture, the name of the seller, etc. No bag-making, filling-and-wrapping machine that can attach a paper to the paper was provided.

Conventionally, a method of attaching a mouth paper to a mesh bag is such that a mouth paper is manually covered with a mouth paper as a post-process of the bag-making filling and packaging, and is closed with a stapler or heat-sealed, or the bag-making filling and packaging is not performed. , Was done entirely by hand.

<Purpose of the Invention> An object of the first invention of the present application is to provide a mouthpiece with a mouthpiece and cover it with a vertical bag-making filling and packaging machine. (EN) Provided is a net bag-made bag-filling and packaging method which can be favorably attached so that no trouble occurs.

An object of the second invention of the present application is, when a bag-making filling and packaging of a mesh bag is performed with a vertical bag-making filling and packaging machine, a mouthpiece is attached to a mesh mouth, and
(EN) Provided is a net bag-making filling and packaging method capable of extremely increasing the attachment strength of a mouthpiece.

<Means for Achieving the Above Purpose> As shown in FIG. 1, the net bag-making filling and packaging method according to the first and second inventions of the present invention uses a heat-soluble net material 1 cut into continuous strips and a former 2 And bend it into a tubular shape, and guide it so as to wrap the cylinder 3. The vertical sealer 4 seals both edges 1a of the net material 1 back-to-back and intermittently feeds it out below the cylinder 3 as the net cylinder 5, and then the cylinder 3 After the net cylinder 5 is sandwiched between the pair of shutters 8 at the required lower part, the article 9 is dropped inside the cylinder 3, and the shutter 8 is opened after the lower horizontal seal 7 is applied,
The lower horizontal seal 7 applied to the net cylinder 5 with respect to the object 9 to be packaged in the net cylinder is performed before or after the net cylinder 5 is sandwiched by the shutters 8, and the upper horizontal seal 12 applied to the net cylinder 5. Is a mesh cylinder 5
Is performed after the bag has been extended by the length of the bag, and while the upper side horizontal seal 12 is being applied, it is fed a little and the upper side of the upper side horizontal seal 12 is horizontally cut by the cutter 13.

And, the feature of the first invention of the present application is that, as shown in FIG. 2 (a) to (j) or FIG. 3 (a) to (e), a horizontal seal is applied to the lower end edge of the mesh cylinder 5 described above. After carrying out No. 7, before feeding the mesh tube 5 downward by the bag length, a strip-shaped continuous paper 15 having a V-shaped cross section and made of a heat-welding plastic film is continuously attached to the mesh tube 5 The bottom edge of the horizontal seal 7 is provided at one end of the horizontal seal 7 and is supported from below by a mouthpiece guide 16 so that the bottom edge of the mesh tube 5 is slightly downward and slightly inclined. Then, the horizontal seal 7 of the mesh cylinder is supplied so as to be positioned in the V-shaped gap of the mouthpiece, and then the mouthpiece guide 16 is raised to make the mouthpiece 15 horizontal so that the mouthpiece 15 The bottom edge of the mesh tube 5 should be very close to the half-fold line, and a horizontal seal 24 should be applied to the paper 15.
It is characterized in that the inner surface of the mouthpiece 15 and the mesh tube 5 are welded together, and then the portion of the mouthpiece 15 near the mesh tube 5 on the delivery side is cut.

With respect to the above-mentioned characteristics, it is necessary to feed the V-shaped folded paper sheet 15 in a downward direction and then to lift it horizontally so that the bottom edge of the mesh tube 5 is covered with the paper sheet 15 This is to prevent the tip of the and the lower edge of the mesh tube 5 from interfering with each other. In addition, the horizontal sealing is applied to the lower end edge of the mesh tube 5 in spite of the horizontal sealing from the top of the mouthpiece 15, when the mouthpiece 15 folded in a V shape is sent out in the forward and downward directions. This is so that the lower edge of the paper can be passed between the two folds of the paper 15.

A horizontal sealer 10 for applying the horizontal seal 7 to the lower end edge of the mesh tube 5 may be applied so that the horizontal seal 24 is overlapped on the paper 15.

In addition, a feature of the second invention of the present application is that after the horizontal seal 7 is applied to the lower end edge of the mesh tube 5 described above, the mesh tube 5 has a V-shaped cross section before being unrolled by the bag length. A continuous strip paper 15 having a folded inside made of a heat-welding plastic film is supplied, and the lower end edge of the mesh tube 5 is positioned in the V-shaped gap of the slip paper 15, and 5, the horizontal seal 24 is applied at a temperature higher than that of the horizontal seal 7 on the lower end edge of the mesh tube 5 so as to be higher than the horizontal seal 7 on the lower end edge of the mesh cylinder 5, and the inner surface of the paper 15 and the mesh cylinder 5 are welded together. Then, the portion of the paper sheet 15 on the delivery side near the mesh tube 5 is cut.

With respect to the above-mentioned characteristics, the paper 15 is placed at a higher temperature than the horizontal seal 7 at the lower end edge of the mesh cylinder 5 and at a temperature higher than that required for the horizontal seal 7 applied to the lower end edge of the mesh cylinder 5. Normally, the horizontal seal 24 is provided with a horizontal sealer 10 for applying the horizontal seal 7 to the lower end edge of the mesh cylinder 5, because the horizontal seal for the paper 15 usually requires more heat load than the horizontal seal for the mesh cylinder 5. When the horizontal seal 24 is applied to the paper 15, the inner surface of the paper 15 and the mesh cylinder 5
Since the welding strength of (the attachment strength of the paper 15) becomes weaker, another horizontal sealer 17 is installed on top of the horizontal sealer 10 and the paper 15
This is to make the welding strength between the inner surface of the mesh and the mesh tube 5 extremely high.

<First Example> A first example common to the net bag making and packaging methods of the first and second inventions of the present application will be described below.

FIG. 1 is a schematic overall front view of a bag-making filling and packaging machine that can carry out the net bag-making filling and packaging method of the present invention.

The net material 1 is guided to the former 2 and bent into a tubular shape so as to surround the cylinder 3, and both edges 1a of the net material 1 are provided on the front side of the cylinder 3.
Then, both edges 1a are backed and sealed by a vertical sealer 4 to form a strip-shaped net material 1 into a net cylinder 5. And, this mesh cylinder 5
The net feed rolls 6, 6 are rotated to feed downward and are hung down from the cylinder 3, and thereafter, the backing seal and the downward feeding are alternately performed in a predetermined order constituting the packaging cycle.

Below the cylinder 3, the net cylinder 5 is horizontally sealed by a horizontal sealer 10, covered with a mouthpiece 15 and welded, and cut by a cutter 22 into a mouthpiece 15 having a predetermined length.

When the mouthpiece 15 is attached, the shutter 8 is closed, and the article 9 to be packaged is dropped into the cylinder 3 and supplied into the mesh tube 5 so that it can be received by the shutter 8. Then, the shutter 8 is opened to drop the object to be packaged 9 to the lower end edge of the mesh tube 5 with the paper 15, and the mesh feed rolls 6 and 6 are rotated so that the mesh tube 5 is positioned at 5 '. The length L for one bag is lowered, the upper horizontal seal is provided by the horizontal sealer 11, and the mesh tube 5 is horizontally cut by the cutter 13.

To describe in detail the supply and attachment of the above-mentioned mouthpiece 15, this mouthpiece 15 is a pair of pinch rolls 18 from the original roll 19 to the trademark, the date of manufacture, the name of the seller, the eye mark, etc. On the back side of the paper on which is printed, the endless paper 20 with a plastic film having a welding temperature lower than that of the mesh material 1 is fed out, is guided to the front former 21, and is folded in two so that the film side is fitted. , And is restored to a V-groove shape through the pinch roll 18.
Then, the paper sheet 15 is stably placed by being mounted on the V-shaped groove of the paper sheet guide 16 which can be raised by a magnet mini-cylinder or the like, and is fed so as to go down at a small angle. And the above-mentioned horizontal seal of the mesh cylinder 5 is covered from the lower end edge from below, and the horizontal sealer 17 seals the paper 15 at a higher temperature than the horizontal sealer 10 and feeds it slightly. The mouthpiece 15 is cut by a cutter 19.

As a packaging device, the horizontal sealers 10, 11, 17 and the cutters 13, 22 are collectively attached to one station frame 23. When the contact surfaces to be sealed by the horizontal sealers 10 and 11 are vertical stripes having a pitch of 5 mm, for example, the horizontal sealing can be satisfactorily performed on the mesh tube 1.
If the contact surface of the horizontal sealer 17 to be sealed is formed into horizontal stripes having a pitch of 1 mm, for example, the paper 15 can be well sealed horizontally.

FIGS. 2 (a) to 2 (j) are other packages for explaining the net bag-making bag filling and packaging method common to the first and second inventions of the present application which can be carried out by the bag-making filling and packaging machine shown in FIG. It is a process drawing.

First, as shown in FIG. 2 (a), a horizontal seal 7 is applied to the lower end edge of the mesh cylinder 5 depending from the cylinder 3 by a pair of horizontal sealers 10 shown in FIG. 1. Next, as shown in FIG. 2 (b), an ascending mouthpiece guide in which a mouthpiece 15 folded in two with a V-shaped cross section is provided at one end of the horizontal seal 7 at the lower end edge of the mesh tube 5.
It is placed in the V-shaped groove of 16 and fed so as to go down at a small inclination angle, at this time, it is positioned so that the lower end edge of the net cylinder enters the V-shaped gap of the paper, and the paper of 15 The tip should be slightly wider than the width of the mesh tube 5.

After that, as shown in FIG. 2 (c), the mouthpiece guide 16 is moved up to make the mouthpiece 15 horizontal, so that the bottom edge of the mesh cylinder 5 is brought close to the folding line of the mouthpiece 15.

Then, as shown in FIG. 2 (d), a pair of horizontal sealers 17 sandwich the paper sheet 15 so as to be higher than the horizontal seal 7 in FIG. 2 (a), and then, as shown in FIG. 2 (e). The horizontal seal 24 shown is provided, and the sheet is slightly fed while the horizontal seal is being provided, and the portion near the mesh cylinder 5 on the delivery side of the paper sheet 15 is cut by the cutter 22. At this time, the horizontal sealer 17 is kept at a required temperature higher than that of the horizontal sealer 10, and the fusible plastic film on the inner surface of the mouth paper 15 is attached to the mesh tube 5 having the fusible property at a temperature higher than that. It will be welded.

Next, as shown in FIG. 2 (e), the required upper side of the paper 15 is sandwiched by a pair of shutters 8, and as shown in FIG. 2 (f), the potatoes 9 are dropped and received by the shutter 8. Then, as shown in FIG. 2 (g), a pair of shutters are opened and the potato 9 is dropped to the front paper 15.

Then, as shown in FIG. 2 (h), the net feed rolls 6 and 6 are rotated by a required number of revolutions to feed the net cylinder 5 downward by a length L corresponding to one bag.

Then, as shown in FIG. 2 (i), the mesh tube 5 is clamped by two pairs of horizontal sealers 10 and 11, and the mesh tube 5 is placed on the mesh tube 5 by the horizontal sealers 11 as shown in FIG. 2 (j). A horizontal seal 12 is provided, and the horizontal sealer 10 allows the mesh cylinder 5 to correspond to the lower horizontal seal 7 shown in FIG. 2 (j) for the next bag (corresponding to the horizontal seal 7 in FIG. 2 (a)). ) Is applied. Also, while the mesh tube 5 is being clamped by the two pairs of horizontal sealers 10 and 11, it is fed a little and the cutter 13 between the horizontal sealers 10 and 11 on one side is projected to be shown in FIG. 2 (j). Cut laterally between the lateral seals 12 and 7.

Finally, as shown in FIG. 2 (j), when the two pairs of horizontal sealers and the cutter are retracted, the bag containing the taro 9 is removed.
14 falls. Then, the process moves to FIG. 2 (b) again.

<Second Embodiment> FIGS. 3 (a) to 3 (e) illustrate a net bag-making bag filling and packaging method common to the first and second inventions of the present application, which can be carried out by the bag making filling and packaging machine shown in FIG. It is another packaging process drawing for doing.

First, as shown in FIG. 3 (a), a mesh tube 5 in which a horizontal seal provided at the lower end edge is covered and welded with a mouthpiece 15 and the potato 9 is accommodated, As shown in FIG. 3B, the bag is lowered by the length of one bag.

Then, as shown in FIG. 3 (c), the two pairs of horizontal sealers 10 and 11 and the cutter 13 are closed and the mesh cylinder 5 is attached to the mesh tube 5 as shown in FIG. 3 (d).
The two horizontal seals 7 and 12 shown in FIG. 2 are applied, the space between the two horizontal seals is cut, and the pair of shutters 8 are closed.

After that, as shown in FIG. 3 (d), the two pairs of horizontal sealers and cutters are opened, whereby the bag 14 with the paper wrapper 15 completed is dropped. Then, in order to attach the paper sheet 15 to the next bag, the paper sheet 15 that is folded in half is placed in the V-shaped groove of the paper sheet guide 16 that can be raised, and the paper sheet is fed downward at a small angle.

After that, as shown in FIG. 3 (e), the mouthpiece guide 16 is raised to make the mouthpiece 15 horizontal, so that the mouthpiece 15 is covered on the lower end edge of the mesh tube 5, and the pair of horizontal sealers 17 is used. The mouthpiece 15 is sandwiched and laterally sealed, slightly fed, and the portion of the mouthpiece 15 on the delivery side near the net cylinder 5 is cut by the mouthpiece cutter 22.

Then, when the pair of shutters are opened and the taro 9 is dropped to the lower horizontal seal 7, the result is as shown in FIG. 3 (a).

<Modification> The horizontal sealers 10 and 11 may be closed when the horizontal sealer 17 is closed in order to share the opening / closing means. As a result, the horizontal sealer 10 will be overlaid and sealed, but the horizontal sealer
Since the temperature is lower than the temperature of 17, there is no risk of melting the lap seal, and the lateral seal to the paper sheet 15 is weakly performed.

The horizontal sealer 11 may be provided in the upper station, and the horizontal sealers 10, 17 and the cutters 13, 22 may be provided in the lower station.

<Effect of the Invention> As described above, according to the bag-making filling and packaging method of the first invention of the present application, the folded paper is supplied to the lower side of the lower end edge of the horizontally sealed mesh cylinder in the forward and downward direction. The bottom edge of the mesh cylinder is accommodated in the V-shaped gap of the mouthpiece by lifting it up, so that the tip of the mouthpiece is secured so that it does not get caught in the mesh, and is laterally sealed to provide a flat shape. The folded paper can be supplied so as to sandwich the lower end edge of the mesh cylinder, and the paper can be favorably attached to the lower end of the mesh cylinder without any trouble in supply.

Since the mouthpiece is cut into a predetermined length after the mouthpiece and the mesh tube are welded together, there is no need for any means for supporting the mouthpiece having a V groove on the lower side of the mesh tube, and the horizontal sealer is used. The structure is simple because it only needs to be provided with a mechanism for supporting the support by lifting the mouthpiece when the user leans on.

Further, according to the bag making filling and packaging method of the second invention of the present application, after the lower end edge of the mesh cylinder is laterally sealed, the mesh cylinder is formed into a V-shaped cross section before being drawn downward by the bag length. By supplying a continuous strip-shaped mouthpiece whose inside is made of heat-welding plastic film, place the bottom edge of the mesh cylinder in the V-shaped gap of the mouthpiece, rather than the horizontal seal at the bottom edge of the mesh cylinder. Horizontally seal the mouthpiece at a temperature higher than that of the bottom edge of the mesh cylinder so as to be higher, and weld the mesh cylinder to the inner surface of the mesh paper. Since the portion near to is cut, the mouthpiece can be attached to the mesh cylinder so that the attachment strength becomes extremely large.

In this respect, the temperature of the horizontal seal applied to the bottom edge of the mesh cylinder is raised to the required temperature without a sealer for the mouthpiece, and if the seal is applied twice from the top of the mesh paper, the temperature of the horizontal seal applied to the bottom edge of the mesh cylinder Is too high to melt the mesh cylinder, or the sealing strength of the seal paper and mesh cylinder when sealed twice is extremely weak, and holding the seal paper causes the weight of the packaged object such as potatoes to be more than that of the seal paper. There is a risk of cutting.

[Brief description of drawings]

FIG. 1 is a schematic overall front view of a bag-making filling and packaging machine which can commonly carry out the bag making and packaging methods of the present invention of the first and second inventions of the present application. 2 (a) to (j) and 3 (a) to (e),
It is a different packaging process figure for demonstrating the net bag bag-making filling packaging method common to the 1st and 2nd invention of this application which can be implemented by the bag-making filling packaging machine shown in FIG. FIGS. 4 (a) to 4 (f) are views showing a packaging process for packaging potatoes and the like with a conventional bag-making filling and packaging machine. 1 ... mesh material, 1a ... both edges of mesh material combined, 2 ... former, 3 ... cylinder 3, 4 ... vertical sealer, 5 ... mesh cylinder, 6 ... mesh feed roll, 8 ... Shutter, 9 ... Packaged item, 10, 11, 17 ... Horizontal sealer, 7, 12 ... Horizontal seal, 13 ... Cutter, 14 ... Bag, 15 ... Paper, 16 ... Paper guide, 18 …… Pinch roll, 19 …… Fabric roll, 20 …… Front paper, 21 …… Former, 22 …… Cutter, 23 …… Station frame, 24 …… Horizontal sticker.

Claims (2)

[Claims] 1. A continuous strip of heat-soluble net material is guided to a former and bent into a tubular shape, and is guided so as to wrap the cylinder, and both edges of the net material are backed and sealed with a vertical sealer. As a mesh cylinder, the mesh cylinder is intermittently drawn out below the cylinder, and then the mesh cylinder is sandwiched between a pair of shutters at a required lower part of the cylinder, and then the object to be packaged is dropped inside the cylinder, and the shutter is provided with a horizontal seal on the lower side. After opening, the lower horizontal seal to be applied to the object to be packed in the mesh cylinder is performed before or after sandwiching the mesh cylinder with a shutter, and the upper horizontal seal to be applied to the mesh cylinder is mesh. The method is performed after the tube is extended downward by the length of the bag, and while the upper side horizontal seal is being applied, it is fed a little and the upper side of the upper side seal is cut horizontally by a cutter. After the horizontal seal is applied to the edge, the net cylinder is bag length Just before feeding it downward, a strip-shaped continuous paper whose inside is made of a heat-welding plastic film, which is folded in two in a V-shape in cross section, is installed at one end of the horizontal seal at the bottom edge of the mesh tube. It is supported from below by a mouthpiece guide so that it is slightly down and down from the lower edge of the mesh cylinder, and the lower edge of the mesh cylinder is positioned in the V-shaped gap of the mesh paper. Then, by raising the mouthpiece guide to make the mouthpiece horizontal, the lower end edge of the mesh cylinder is brought close to the folding line of the mouthpiece, and a horizontal seal is applied to the mouthpiece. And the inner surface of the mouth paper is welded to the net cylinder, and then the portion near the net cylinder on the delivery side of the mouth paper is cut. 2. A heat-soluble net material cut into continuous strips is guided to a former and bent into a tubular shape, and is guided so as to wrap the cylinder, and both edges of the net materials are backed and sealed by a vertical sealer. As a mesh cylinder, the mesh cylinder is intermittently drawn out below the cylinder, and then the mesh cylinder is sandwiched between a pair of shutters at a required lower part of the cylinder, and then the object to be packaged is dropped inside the cylinder, and the shutter is provided with a horizontal seal on the lower side. After opening, the lower horizontal seal to be applied to the object to be packed in the mesh cylinder is performed before or after sandwiching the mesh cylinder with a shutter, and the upper horizontal seal to be applied to the mesh cylinder is mesh. The method is performed after the tube is extended downward by the length of the bag, and while the upper side horizontal seal is being applied, it is fed a little and the upper side of the upper side seal is cut horizontally by a cutter. After the horizontal seal is applied to the edge, the net cylinder is bag length Just before feeding it downwards, supply a continuous strip of paper that has a V-shaped cross section and is made of a heat-welding plastic film on the inside, and insert the bottom edge of the mesh cylinder into the V-shaped gap of the paper. Position it and place it horizontally above the horizontal seal on the bottom edge of the mesh cylinder at the required temperature higher than the horizontal seal on the bottom edge of the mesh cylinder, and place the mesh cylinder on the inner surface of the mesh paper. A bag-filling and packing method for making a mesh bag, which comprises melting and then cutting a portion of the mouthpiece on the delivery side near the mesh cylinder.