JP3530597B2 - Horizontal pillow packaging machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents a packaged article to be mounted from turning back when cutting and sealing the front and rear of a cylindrically formed packaging sheet. The present invention relates to a horizontal pillow packaging machine. 2. Description of the Related Art Conventionally, this type of pillow wrapping machine has been capable of continuous automatic wrapping even if the shapes of the articles to be wrapped are irregular.
In addition, even if the shape of the supplied package is changed, it can be switched in a short time, and it is excellent in versatility, so it is not limited to confectionery and food, but also for automatic packaging of all kinds of products such as medicines and industrial parts. Widely adopted, for example,
No. 179419. FIGS. 10 to 14 show a configuration of a general pillow packaging machine, mainly a bag making device. [0004] A package 2 such as a confection placed on the supply guide 1 projects from a slit formed at the center of the supply guide 1 and is provided 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 is slid in the direction of the bag making device 5. [0005] A packaging sheet 6a is continuously supplied to the bag making device 5 from a roll-shaped packaging sheet 6 laid obliquely upward, and the packaging sheet 6a is moving through the bag making device 5. Then, the lower end edge of the mating surface 6b is sandwiched between feed rollers 7 and welded by a center seal roller (not shown), and then fed toward the end seal cutter. When the article to be packaged 2 is pressed by the pressing member 4 and sent to the bag making apparatus 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 6a and the article to be packaged 2 are pressed by the packaging sheet pressing brush 8 disposed at the upper portion, and are pulled and transported by the feed roller 7 and the center seal roller (not shown). On the other hand, the pressing member 4 moves downward in the drawing according to the rotation 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 denotes a transport 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 provided in front of the end seal cutter. ing. [0008] By the way, when cutting and sealing the front and rear sides of the cylindrical packaging sheet with the end seal cutter, the packaging sheet on the near side is narrowed. The rear packaged object 2 is pressed and returned. In particular, the packaged object 2 is spherical,
In the case of a shape having a substantially circular cross section, such as a columnar shape, there was such a tendency. The reversal of the article to be packaged 2 can be regulated to some extent by the above-mentioned conveying brush. However, this conveying brush 11 has its bristle tip against the above-mentioned packaging sheet 6a in order to exclude air from the packaging sheet 6a. The package 2 is arranged so as to abut vertically so as to push out the air above the package 2, so that the function of suppressing the return of the package 2 is weak and cannot be completely prevented. When the package 2 returns, the transfer intervals of the package 2 become uneven, and the package 2 to be put in the front enters the later package, and an empty package or 2 There is a problem in that a package for storing the individual packages 2 is manufactured, or the packages 2 are crushed by being bitten by the end seal cutter. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a horizontal pillow packaging machine capable of preventing reversal of an article to be packaged just before an end seal cutter to reduce a product defect rate. [0012] In order to achieve the above object, a horizontal pillow packaging machine according to the present invention comprises a bag making device for continuously forming a packaging sheet into a tubular shape, and a cover for the bag making device. A supply unit for feeding the package, an end seal cutter for sealing and cutting the package sheet before and after the package is wrapped, and a fixing for preventing the package from being returned fixed to the end of the end seal cutter; A brush, the tip of the fixed brush for preventing reverse rotation is inclined so as to face the end seal cutter, and the tip is lower than the height of the article to be packaged, and the forward direction of the article to be packaged. Is set to an allowable height. According to the present invention, when the front and rear sides of the cylindrical packaging sheet are cut and sealed by the end seal cutter, the end seal cutter crushes the front packaging sheet and moves the next packaged object in the reverse direction. However, the object to be packaged is hung on the bristle tip of the fixed brush, thereby preventing reversion. On the other hand, the tips of the fixed brush are inclined to the end seal cutter side, and the height of the tips is lower than the height of the article to be packaged, and the passing of the article to be packaged in the forward feeding direction is prevented. Since the position is set at an allowable position, the supply of the packaged object in the forward feeding direction is performed without any trouble. An embodiment 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 connected downstream of the supply guide 21 via a triangular guide 23 (see FIG. 4). The supply guide 21 is a horizontal plate slidably supporting a packaged object 24 such as a candy, a ball chocolate, or a spherical shoe confection having a substantially circular cross section, and a slit 21a is formed in the center. I have. Triangle guide 2 above
Numeral 3 is provided between the supply guide 21 and the bag making device 22 so as to prevent the package 24 from falling off when the package 24 is delivered. As shown in FIGS. In order to easily hold the bottom of the object 24, both sides are disposed 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 provided below the slit 21a of the supply guide 21. The supply end 25a of the supply chain 25 extends to near the tip of the triangular guide 23. I have. Pressing members 26 are supported at predetermined intervals on the supply chain 25.
A horizontal guide 27 that holds the pressing member 26 in a horizontal state is laid below the portion opposed to. The pressing member 26 has a pressing pin 26a protruding therefrom.
When the pressing member 26 slides on the horizontal guide 27, the pressing pin 26a is connected to the slits 21a and 23a.
And presses the packaged object 24. Also,
At the supply end 25a of the supply chain 25, a posture guide 28 for retreating the pressing member 26 downward in a horizontal state is provided in opposition. On the other hand, a roll 29 is provided horizontally obliquely above the entrance side of the bag making device 22, and a packaging sheet 29a fed from the roll 29 is fed through a feeding roller 30 or the like. 22. This bag making device 22
On the downstream side of the feed roller 31 and the center seal roller 32
The end seal cutter 33 is provided downstream of the end seal cutter 33, and a discharge conveyor 39 is provided downstream of the end seal cutter 33. When the wrapping sheet 29a flows into the bag making device 22, the wrapping sheet 29a is bent into an inverted U-shape, and the mating surface 29b of the lower end edge thereof is brought into close contact with the feed roller 31 so that the wrapping seal 29a is And welded by the center seal roller 32. The supply end 25a of the supply chain 25 is connected to the mating surface 29 of the packaging sheet 29a.
b is extended to just before the position where it is closely attached. Further, the bag making device 22 is provided with a packing sheet pressing brush 34. The brush 34 for holding the packaging sheet holds the object 24 to be packaged with the packaging sheet 29.
The upper part is lightly pressed so as to be transported together with the position a without being displaced. As shown in FIGS. 6 and 7, the holding recess 34a is formed to have a curvature matching the shape of the packaged object 24. . A transport brush 35 for holding the position of the tubular packaging sheet 29a and the article to be packaged 24 downstream of the bag making device 22 and excluding air in the tubular packaging sheet 29a. The end seal cutter 33 is further provided upstream of the end seal cutter 33.
A fixed brush 36 is fixed to prevent the packaged object 24 immediately before being cut and sealed from being pushed back by the end seal cutter 33 and returned. The fixed brush 36 is attached in such a manner that its tip 36a is inclined so as to face the end seal cutter 33. More specifically, the bristle tips 36a are disposed obliquely so as to be shifted from the vertical direction in the forward direction of the packaged object 2, and the bristle tips 36a of the fixed brush 36 are lower than the height of the packaged items 2 and are further progressively fed. The passage of the packaged object 2 in the direction is set to an allowable height. Further, the length of the bristles of the fixed brush 36 is appropriately set depending on the shape of the packaged object 2 and the like. When the packaged object 2 is spherical, the length is several times the height of the packaged object 24 ( Preferably 2
~ 3 times). In addition, the code | symbol 37 in FIG. 2 is a completed package. Next, the operation of the embodiment having the above configuration will be described. The packaging sheet 29a is supplied from the roll 29 to the bag making device 22 and is bent into an inverted U-shape. Then, the mating surface 29b of the lower edge thereof is sandwiched between the feed roller 31 and the center seal roller 32 to form a cylinder. It is formed and pulled by these rollers 31 and 32. On the other hand, the packaged object 24 placed on the supply guide 21 connected to the upstream side of the bag making device 22 is pressed by a pressing pin 26a having a back surface protruding from a pressing member 26. In accordance with the rotational speed of the supply chain 25 supporting the member 26, the supply chain 25 is moved in the direction of the bag making device 22.
The supply chain 25 extends until immediately before the packaging sheet 29a is formed into a cylindrical shape. Therefore, the packaged object 24 always passes through the supply guide 21 and the triangular guide 23 at a substantially constant interval. While holding the bag 22
Is fed into the cylindrical packaging sheet 29a formed by the above. Also, as shown in FIGS.
Since 3 is inclined in a V-shape, the bottom of the packaged object 24 does not swing left and right, and is supplied in a stable state into the cylindrical packaging sheet 29b. The article to be packaged 24 is transported in the bag making device 22 by being lightly pressed together with the packaging sheet 29b by the packaging sheet pressing brush 34 at the upper part. At this time, since the pressing recess 34a of the packaging sheet pressing brush 34 is formed to have a curvature conforming to the shape of the packaged object 24, even if the packaged object 24 is made of a material that easily collapses, it is easily pressed. Can be Next, the packaged object 24 is transported to the end seal cutter 33 together with the packaging sheet 29a after the air is removed when passing through the transport brush 35. The end seal cutter 33 is used for the packaging sheet 2.
It rotates in synchronization with the transfer speed of 9a, and seals and cuts the space between the articles to be packaged 24 of the cylindrical packaging sheet 29a. At this time, the packaged object 24 located on the upstream side of the end seal cutter 33 is pressed by the wrapping sheet 29a narrowed by the end seal cutter 33 and tries to return. 3
6 is fixedly mounted with the bristle tips 36a inclined toward the end seal cutter 33, so that the packaged object 24 to be returned is the bristle tips 36 of the fixed brush 36.
a, and the return is prevented. As a result, the interval between the packages 24 is always maintained within a certain allowable range. In addition, by setting the length of the bristles of the fixed brush 36 to several times the diameter of the packaged object 24, even if the shape of the packaged object 24 is spherical, it can be received softly without breaking its shape. Can be. On the other hand, the movement of the packaged object 24 in the forward feed direction is permitted because the tip 36a of the fixed brush 36 is bent. When the tubular packing sheet 29a is cut and sealed before and after by the end seal cutter 33, it is sent out as a completed package 37 to a discharge conveyor 39. Instead of the supply guide 21, FIG.
A guide rail 41 as shown in FIG. 9 may be provided.
In this case, the width of the guide rail 41 is set to a size that does not swing right and left in accordance with the diameter of the packaged object 24, and a triangular corner 42 that cuts the bottom of the packaged object 24 is provided at a lower portion. Set up. This prevents the packaged object 24 from swinging left and right during transfer. According to the present invention as described above,
The object to be packaged, which is pressed by the packaging sheet narrowed by the end seal cutter and tries to return, is prevented from returning to the tip of the fixed brush. , It is possible to reduce the product defect rate.

BRIEF DESCRIPTION OF THE 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 of the vicinity of 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 cross-sectional view of a triangular guide portion (a surface cut in a direction perpendicular to the traveling direction). FIG. 6 is a schematic side view of a periphery of a packaging sheet pressing brush of the horizontal pillow packaging machine. FIG. 7 is a sectional view of a pressing brush portion. FIG. 8 is a perspective view of a main part of a supply guide according to another embodiment. 9 is a sectional view of FIG. 8 as 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 showing the periphery of a packaging sheet pressing brush of a conventional horizontal pillow packaging machine. FIG. 12 is a sectional view of a pressing brush portion. FIG. 13 is a schematic plan view on the entrance side of a conventional packaging machine. FIG. 14 is a right side view of FIG. [Description of Reference Numerals] 21 supply guide 22 bag-making device 24 packaged object 25 supply chain 26 pressing member 29a packaging sheet 33 end seal cutter 36 fixed brush 36a for preventing back-up

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-287507 (JP, A) JP-A-6-179419 (JP, A) JP-A-4-181245 (JP, A) JP-A-2- 175553 (JP, A) JP-A-8-91307 (JP, A) JP-B-42-12580 (JP, B1) JP-B-48-21962 (JP, Y1) (58) Fields studied (Int. Cl. ⁷ , DB name) B65B 9/00 B65B 9/06 B65B 9/08 B65B 35/00

Claims (1)

(57) [Claims 1] A bag-making device for continuously forming a packaging sheet into a tubular shape, a supply section for feeding an article to be packaged into the bag-making device, An end seal cutter for sealing and cutting before and after enclosing the packaged object, and a fixed brush for preventing the packaged object from returning back fixed to the end of the end seal cutter; And the tip of the bristle is set to be lower than the height of the packaged object, and set to a height that allows the packaged object to pass in the forward feeding direction. Characteristic horizontal pillow packaging machine.