JPH0891319A - Horizontal pillow packaging machine - Google Patents

Abstract

PURPOSE: To reduce the rate of defective products by preventing an object to be packaged from returning due to the narrowing of a packaging sheet when the front and rear parts of the packaging sheet which is formed into a cylindrical shape are cut and sealed by an end seal cutter for a horizontal pillow packaging machine. CONSTITUTION: At this side of an end seal cutter 33, a fixing brush 36 is arranged in such a manner that the tip 36a of the fixing brush 36 may face the end seal cutter 33 side by tilting the fixing brush 36. The height of the brush tip 36a is set to be slightly lower than the height of an object 24 to be packaged and passable in the normal feeding direction of the object 24 to be packaged. The object 24 to be packaged is caught by the brush tip 36a and prevented from returning at the time of cutting and sealing of the end seal cutter 33. In the meantime, when the object 24 to be packaged is transferred in the normal feeding direction, the passing is allowed by the warping of the brush tip 36a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal pillow wrapping machine which prevents a backing of an article to be packaged when the front and rear sides of a tubular wrapping sheet are cut and sealed.

[0002]

2. Description of the Related Art Conventionally, this type of pillow wrapping machine has been capable of continuous automatic wrapping even if the shape of the article to be wrapped is uneven.
Moreover, it has excellent versatility such that it can be switched in a short time even when the shape of the supplied package is changed, so it can be used not only for confectionery and food, but also for automatic packaging of everything such as chemicals and industrial parts. It is widely adopted, for example, Japanese Patent Laid-Open No.
It is disclosed in Japanese Patent Publication No. 179419.

10 to 14 show a structure of a general pillow packaging machine, centering on a bag making machine.

Items to be packaged 2 such as confectionery placed on the supply guide 1 project from a slit formed in the center of the supply guide 1 and are arranged at predetermined intervals on a supply chain 3 which rotates at a predetermined speed. The back surface is pressed by the attached pressing member 4, and it is slid in the direction of the bag maker 5.

The bag-making device 5 is continuously supplied with a packaging sheet 6a from a roll-shaped packaging sheet 6 which is obliquely provided horizontally, and the packaging sheet 6a is moving in the bag-making device 5. Then, the mating surface 6b at the lower end is sandwiched by the feed roller 7, welded by a center seal roller (not shown), and then fed in the direction of the end seal cutter.

When the object 2 to be packaged is pressed by the pressing member 4 and sent into the bag making machine 5, it is transferred from the supply guide 1 onto the triangular guide 9 (see FIG. 13), and its tip portion. Is wrapped in the packaging member 6a. Also,
The packaging sheet pressing brush 8 arranged at the upper portion presses the packaging sheet 6a and the article 2 to be packaged, and is pulled by the feed roller 7 and the center seal roller (not shown) to be transported.

On the other hand, the pressing member 4 moves downward in the drawing in accordance with the rolling direction of the supply chain 3. A posture guide 10 is provided opposite to the supply end 3a of the supply chain 3, and the pressing member 4 is translated downward in accordance with the posture guide 10. Reference numeral 11 in FIG. 10 is a conveying brush for bringing the packaging sheet 6a into close contact with the article to be packaged 2 in order to remove air from the packaging sheet 6a, and is arranged in front of the end seal cutter. ing.

[0008]

By the way, when the front and rear of the tubular packaging sheet is cut and sealed by the above-mentioned end seal cutter, the packaging sheet on the front side is narrowed, so that the rear side of this end seal cutter is The article to be packaged 2 is pressed and is returned. In particular, the object to be packaged 2 is spherical,
In the case of a shape having a substantially circular cross section such as a cylindrical shape, there was such a tendency.

The backward movement of the article to be packaged 2 can be regulated to some extent by the above-mentioned carrying brush, but this carrying brush 11 removes air from the wrapping sheet 6a so that the bristle tips are against the above-mentioned wrapping sheet 6a. Since it is arranged so as to vertically abut and the air above the article to be packaged 2 is pushed out, the function of suppressing the backward movement of the article to be packaged 2 is weak and cannot be completely prevented.

When the package 2 goes back, the transfer intervals of the package 2 become uneven, and the package 2 to be put in the front enters the package later, and the empty package or 2 There is a problem in that a package that stores individual packaged items 2 is manufactured, or the packaged items 2 are bitten by the end seal cutter and crushed.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a horizontal pillow packaging machine capable of reducing the product defect rate by preventing the articles to be packaged from returning in front of the end seal cutter.

[0012]

In order to achieve the above object, a horizontal pillow packaging machine according to the present invention is provided with a bag-making machine for continuously forming a packaging sheet into a tubular shape, and a bag-making machine with an object to be packaged. A feeding unit for feeding, an end seal cutter that seals and cuts the front and rear of the packaging sheet for wrapping the object to be packaged, and a fixed brush for preventing reversal of the object to be packaged that is fixed in front of the end seal cutter. And the tip of the fixed brush for preventing reversion is inclined so as to face the end seal cutter side, and the tip of the bristles is lower than the height of the packaged object, and passes through the packaged object in the forward feeding direction. Is set to an allowable height.

[0013]

According to the present invention, when the front and rear sides of the tubular packaging sheet are cut and sealed by the end seal cutter, the packaging sheet on the front side is crushed by the end seal cutter and the next object to be packaged is pressed in the backward direction. However, this packaged object is hooked on the bristles of the fixed brush and is prevented from returning. On the other hand, the bristles of the fixed brush are inclined toward the end seal cutter side, the height of the bristles is lower than the height of the packaged object, and the passage of the packaged object in the forward feeding direction is Since the position is set to the allowable position, the above-mentioned packaged objects can be supplied in the forward feeding direction without any trouble.

[0014]

Embodiments of the present invention will be described below with reference to FIGS. On the upstream side of the horizontal pillow packaging machine shown in the figure,
A supply guide 21 is provided, and a bag-making device 22 is continuously provided downstream of the supply guide 21 via a triangular guide 23 (see FIG. 4). The supply guide 21 is a horizontal plate that slidably supports an object to be packaged 24 such as a hard candy, a chocolate ball, and a ball-shaped confectionery having a substantially circular cross section to be placed. A slit 21a is formed at the center of the plate. There is. Above triangular guide 2
Reference numeral 3 denotes a continuous connection between the supply guide 21 and the bag-making device 22 to prevent the product 24 from falling off when it is delivered. As shown in FIGS. In order to easily hold the bottom of the object 24, both sides are arranged in a state of being inclined upward in a V shape, and a slit 23a communicating with the slit 21a is formed in the center.

A supply chain 25 is arranged below the slit 21a of the supply guide 21, and a supply end portion 25a of the supply chain 25 extends to near the tip of the triangular guide 23. There is. Pressing members 26 are supported on the supply chain 25 at predetermined intervals, and the supply guide 21 of the supply chain 25 is supported.
A horizontal guide 27 that holds the pressing member 26 in a horizontal state is laid below a portion opposite to the above. In addition, the pressing member 26 is provided with a pressing pin 26a,
When the pressing member 26 slides on the horizontal guide 27, the pressing pin 26a moves into the slits 21a and 23a.
And is pressed from the article 24 to be packaged. Also,
At the supply end 25a of the supply chain 25, a posture guide 28 for retracting the pressing member 26 downward in a horizontal state is provided oppositely.

On the other hand, a roll 29 is laterally provided diagonally above the entrance side of the bag making machine 22, and a packaging sheet 29a fed from the roll 29 is fed through the feeding roller 30 and the like to the bag making machine. It is sent to 22. This bag making machine 22
The feed roller 31 and the center seal roller 32 on the downstream side of the
Is provided, the end seal cutter 33 is provided at the downstream side thereof, and the discharge conveyor 39 is continuously provided at the downstream side of the end seal cutter 33.

When the packaging sheet 29a flows into the bag making device 22, the packaging sheet 29a is bent and formed in an inverted U shape, the mating surface 29b of the lower end edge thereof is closely attached by the feed roller 31, and the packaging seal 29a is tubular. And is welded by the center seal roller 32. The supply end portion 25a of the supply chain 25 has the mating surface 29 of the packaging sheet 29a.
It is extended just before the position where b is in close contact.

Further, the bag making device 22 is provided with a packaging sheet pressing brush 34. The packaging sheet pressing brush 34 is configured such that the object to be packaged 24 is placed on the packaging sheet 29.
The upper part is lightly pressed so as to be transferred without being displaced together with a. As shown in FIGS. 6 and 7, the holding recess 34a is formed to have a curvature that matches the shape of the object to be packaged 24. .

Further, downstream of the bag making device 22, a conveying brush 35 for holding the positions of the cylindrical packaging sheet 29a and the object to be packaged 24 and eliminating the air in the cylindrical packaging sheet 29a. Is provided, and the end seal cutter 33 is provided upstream of the end seal cutter 33.
A fixed brush 36 is fixedly installed to prevent the article 24 to be packaged immediately before from being pushed back by the end seal cutter 33 when it is cut and sealed.

The fixed brush 36 is attached in a state in which its bristle tips 36a are inclined so as to face the end seal cutter 33 side. Specifically, the bristle tips 36a are obliquely arranged so as to be displaced from the vertical direction in the forward feeding direction of the article to be packaged 2, and the bristle tips 36a of the fixed brush 36 are lower than the height of the article to be packaged 2 and are fed forward. The height of the packaged object 2 in the direction is set to an allowable height. The length of the bristles of the fixed brush 36 is appropriately set depending on the shape of the article to be packaged 2 and the like. When the article 2 to be packaged is spherical, the height of the article to be packaged 24 is several times ( Preferably 2
~ 3 times) is good. Reference numeral 37 in FIG. 2 is a completed package.

Next, the operation of the embodiment having the above structure will be described. The packaging sheet 29a is supplied from the roll 29 to the bag making device 22 and is bent and formed in an inverted U shape. Then, the mating surface 29b at the lower end edge thereof is sandwiched by the feed roller 31 and the center seal roller 32 to form a tubular shape. It is formed and pulled by both rollers 31 and 32.

On the other hand, the article to be packaged 24 placed on the supply guide 21 which is continuously provided on the upstream side of the bag making machine 22 is pressed by a pressing pin 26a having a back surface protruding from a pressing member 26, and this pressing is performed. It is moved in the direction of the bag maker 22 according to the rotation speed of the supply chain 25 that supports the member 26.
The supply chain 25 extends until just before the packaging sheet 29a is formed into a tubular shape. Therefore, the article to be packaged 24 passes through the supply guide 21 and the triangular guide 23, and always has a substantially constant interval. Bag-making device 22 while holding
It is sent into the tubular packaging sheet 29a formed in. In addition, as shown in FIGS. 4 and 5, the triangular guide 2
Since 3 is inclined in a V shape, the bottom of the article to be packaged 24 does not swing to the left and right, and is stably fed into the tubular packaging sheet 29b.

The article to be packaged 24 is transported in the bag making machine 22 by pressing the upper portion thereof together with the packaging sheet 29b by the packaging sheet pressing brush 34. At this time, since the pressing recess 34a of the packaging sheet pressing brush 34 is formed to have a curvature that matches the shape of the object to be packaged 24, even if the object to be packaged 24 is made of a material that easily collapses, it can be easily pressed. To be

Next, this packaged object 24 is transferred to the end seal cutter 33 together with the above-mentioned packaging sheet 29a after the air is removed when passing through the transfer brush 35. The end seal cutter 33 is the same as the packaging sheet 2 described above.
It rotates in synchronism with the transfer speed of 9a, and seals and cuts the space between the articles 24 to be packaged in the tubular packaging sheet 29a. At this time, the object to be packaged 24 located on the upstream side of the end seal cutter 33 is pressed by the packaging sheet 29a narrowed by the end seal cutter 33 and tries to return to the reverse direction. Three
6, the bristles 36a are fixed with the bristles 36a inclined toward the end seal cutter 33 side.
It is hooked by a and prevents the backward movement. As a result, the distance between the objects to be packaged 24 is always maintained within a certain allowable range. Further, by setting the length of the bristles of the fixed brush 36 to be several times the diameter of the object to be packaged 24, even if the object to be packaged 24 has a spherical shape, it can be received softly without losing its shape. You can On the other hand, the movement of the object to be packed 24 in the forward feeding direction is allowed to pass because the bristle tips 36a of the fixed brush 36 are bent.

Then, when the tubular packaging sheet 29a is cut and sealed by the end seal cutter 33, the tubular packaging sheet 29a is delivered to the discharge conveyor 39 as a completed packaging body 37.

Incidentally, instead of the supply guide 21, as shown in FIG.
You may arrange | position the guide rail 41 as shown in FIG.
In this case, the width of the guide rail 41 is set so that it does not swing to the left or right according to the diameter of the article to be packaged 24, and the triangular corner 42 that bends the bottom of the article to be packaged 24 is arranged at the bottom. Set up. As a result, the packaged object 24 is prevented from swinging left and right during transfer.

[0027]

As described above, according to the present invention,
The object to be wrapped that is pressed back by the packing sheet that is narrowed by the end seal cutter and tries to return is prevented from returning at the bristles of the fixed brush. It is possible to reduce the product defect rate.

[Brief description of drawings]

FIG. 1 is a schematic side view of a horizontal pillow packaging machine according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of the horizontal pillow packaging machine.

FIG. 3 is a schematic side view around an end seal cutter of the horizontal pillow packaging machine.

FIG. 4 is a schematic plan view around a triangular guide of the horizontal pillow packaging machine.

FIG. 5 is a sectional view of a triangular guide portion (a plane obtained by cutting the traveling direction vertically).

FIG. 6 is a schematic side view of the vicinity of a packaging sheet pressing brush of the horizontal pillow packaging machine.

FIG. 7 is a cross-sectional view of a pressing brush portion.

FIG. 8 is a perspective view of a main part of a supply guide of another aspect.

9 is a cross-sectional view of FIG. 8 viewed from the front.

FIG. 10 is a schematic side view of a conventional horizontal pillow packaging machine.

FIG. 11 is a schematic side view of a brush for holding a packaging sheet in a conventional horizontal pillow packaging machine.

FIG. 12 is a sectional view of a pressing brush portion.

FIG. 13 is a schematic plan view of an inlet side of a conventional packaging machine.

FIG. 14 is a right side view of FIG.

[Explanation of symbols]

 21 Supply Guide 22 Bag Maker 24 Packaged Object 25 Supply Chain 26 Pressing Member 29a Packaging Sheet 33 End Seal Cutter 36 Fixed Brush for Preventing Backward Return 36a Hair Tip

Claims (1)

[Claims] 1. A bag-making device for continuously forming a packaging sheet into a tubular shape, a supply section for feeding the object to be packaged into the bag-making device, and a seal before and after wrapping the object to be packaged in the packaging sheet. And an end seal cutter to be cut, and a fixed brush for preventing the reversion of the object to be packed that is fixed in front of the end seal cutter, so that the bristles of the fixed brush for preventing the reversion face the end seal cutter side. The horizontal pillow packaging machine is characterized in that the tip of the hair is lower than the height of the object to be packaged and the height of the hair is allowed to pass in the forward direction of the object to be packaged.