JP2003226304A - Preventing device from getting stuck in packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a frequent accident where a seal bar catches a packaged item owing to the dislocation of the item in its tube film as to a lateral bag making and packaging machine. <P>SOLUTION: A belt conveyer 20 is positioned with its front inclining downward in a packaged item transporting direction at the back of a tube forming device 25. A rotary resistor 30 placed at the upper part of the conveyer 20 is formed by wholly covering a belt 33 with a resistance element 34 such as a brush. The belt 33 is structured to rotate in the moving direction or in the direction reverse thereto the item 16. When the element 34 touches the item 16, the natural sliding down of the item 16 is prevented, and in a packaged body sliding room 35 formed between a seal bar 23 and the back end of the resistor 30, the item 16 is released from the element 34 for promoting natural sliding down, for enlarging space with an item in the back, and for enlarging seal space. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal bag-making filling and packaging machine for preventing an article to be packed from being caught by a cross seal bar.

[0002]

A strip-shaped film that is unwound from a roll film supported by a storage shaft is formed into a tube through a cylinder making machine, and a large number of objects to be packaged are contained in the tube film that continuously moves in the horizontal direction. After carrying in at equal intervals in a column, the tube film between each of the objects to be packaged is cut by a pair of upper and lower seal bars to perform a seal cut, and a horizontal bag-making filling and packaging machine that forms packages one after another is not provided. Due to the displacement of the packaged object in the tube film, the seal bar often bites the packaged object. For example, when the instant dry noodles and the sachets containing the seasoning are made into one block to be packaged, even if the former instant dry noodles are not displaced, the latter small sachets are likely to be displaced. The bite damage rate by the seal bar is high.

As a conventional means for solving such a problem, Japanese Patent Laid-Open No. 1-37304 discloses that the pitch of each packaged object in the tube film is monitored by a sensor installed on the tube film transfer track, and the packaged object having a permissible value or more is monitored. When a pitch error is detected, a technique of temporarily stopping the operation of the seal bar and allowing the misaligned object to pass through without being sealed is disclosed. In the end, two unwrapped packages are provided before and after the unsealed portion. Therefore, there is a problem that the product loss rate is high.

In contrast to the above, Japanese Patent Laid-Open No. 4-44913 discloses
In the process of approaching the seal bars installed with the tube film transfer orbit separated, if the resistance force of the items to be packaged acts on the sandwiching force between these two seal bars, the two package bars are quickly separated and the packaged items are displaced. A technique for passing an unsealed sheet is disclosed. However, this technique also has a problem in that two unwrapped packages are formed before and after the unsealed portion, and the resistance of the flexible package is small, so that the package is crushed by the pressure of the seal bar. is there.

[0005]

SOLUTION: In order to eliminate unsealed loss of a package, a strip-shaped film is horizontally moved to form a tube with a bag making machine, and a large number of objects to be packaged are put in the tube film through the bag making machine. In a bag-making filling and packaging machine that carries in at equal intervals in a row and separates and seals each object to be packaged that is carried out by the transport mechanism at the rear of the cylinder making machine, the transport mechanism and the seal bar are It is arranged along a descending inclined slope with the rear end of the bag container as an axis, and a slip of the wrapped product is provided between the seal bar and the trailing end of the wrapped object supporting rotary resistor installed in the upper region of the transportation track. Create and configure an extra space.

In the packaging machine, a packaging member conveying mechanism and a seal bar for isolating each of the packaging items, which are located behind the tube-making device for tube-forming the film, are inclined downward with the rear end of the bag-making device as an axis. Since it is placed along the slope, each packaged item
At the same time as it is carried out from the cylinder making machine, it is inclined to descend to the front by a descending inclined slope to strengthen the tendency to slide down naturally in the tube film. Suppresses the natural sliding down of the packaged object by rotating contact with the object. Then, when the article to be packaged is released from the rotation resistor in the space for slipping the article to be packaged between the rear end of the rotation resistor and the seal bar, the article to be packaged slides forward, and Expand the space between the items to be packaged and the seal space.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 2, which is an overall side view of a bag-making filling and packaging machine, a delivery roll 10 is provided with a storage shaft 11
The strip-shaped film 12 wound into a roll is pulled out in cooperation with a pair of pull-out rolls 13 to form a tube 14 by a horizontally installed tube-making device 25, while the carry-in conveyor 15 at the inlet of the tube-making device is used to The articles 16 are loaded into the tube film 14 at equal intervals in a vertical column, and a pair of heating rolls 17 continuously weld both side edges of the strip-shaped film to form a complete tube. The object to be packaged is not an aggregate of small objects that rolls or flows, but a single block or a small number of single objects, and in some cases, an accessory such as an oxygen absorber is integrally provided.

The belt conveyor 20 installed at the rear of the cylinder making device 25 has a front end 21 directed in the direction in which the articles to be packaged are conveyed.
With the rear end of the cylinder maker 25 as an axis, the conveyance mechanism 40 is inclined downward to the front.
Make up. The inclination angle of the belt 20 is a numerical value indicating whether or not the article 16 to be packaged naturally slides down,
In short, it may be considered that the sliding force acts on the article to be packaged due to the inclination, and the sliding vibration occurs on the article 16 to be packaged due to the rotational vibration of the belt 20. In other words, the belt conveyor 20 on which the article 16 to be packaged is placed and conveyed.
The upper mounting surface is placed along a descending inclined slope 22 which is inclined downward to the front with the rear end of the cylinder making machine 13 as an axis, and a pair of rotary seal bars 23 and 24 are installed behind it. Therefore, as shown in FIG. 3, the article 16 to be packaged carried out from the bag making machine 25 is placed on the belt 20 in an inclined manner and rotates with the pair of seal bars 2.
The separating action of 3 and 24 is to seal-cut the tube film 14 to sequentially form a package.

As shown in FIG. 1, a rotary resistor 30 installed in the upper region of the belt conveyor 20 is formed by providing a resistor 34 such as a brush on the entire surface of a belt 33 supported by a pair of pulleys 31, 32. Since 33 is configured to rotate in the moving direction or the opposite direction of the packaged object 16, the contact action of the resistor 34 with the packaged object 16 causes the packaged object 16 to contact.
Of the sliding resistance space 30 formed between the rear end of the rotation resistor 30 and the seal bar 23.
5, the article 16 to be packaged is released from the resistor 34 to promote natural downhill. In this case, an element 36, such as a star-type rotary hammer, which applies an impact to the article to be packaged is installed below the belt conveyor 20 in the space 35 for slipping the article to be packaged. As is the case with the main article 16 to be packaged, it is considered to be particularly effective in promoting the sliding down of the enclosed pouch 39.

Pulleys 31, 32 of the rotary resistor 30 of FIG.
The block for supporting the reciprocating motion of the screw shaft can be reciprocated along the arrow 37, and the displacement of the object supporting rotary resistor 30 corresponds to the value of the length of the object to be packaged 16. It is possible to adjust the value of the allowance space 35.

In the embodiment in which the article to be packaged is carried by being sandwiched between the side belts 38 on both sides at the rear exit of the tube-making device 25 as shown in FIG. 4, the side belt 20 shown in FIG.
It can be replaced with a simple slide plate, and each object to be packaged can be transported along the slide plate.

According to the present invention, the object to be packaged is released from the rotational resistor in the space for sliding the object to be packaged between the rear end of the rotational resistor and the seal bar, and the sliding action in the forward direction causes the rearward movement of the object. Since the space between the item to be packaged and the seal space is expanded,
Since there is almost no chance that the seal bar will bite the packaged object, it is possible to prevent the generation of an unsealed package as compared with the conventional bite prevention device.

[Brief description of drawings]

[Figure 1] Side view of the main part

FIG. 2 is a side view of the entire device.

[Fig. 3] Side view of the action of the main part

FIG. 4 is a plan view of the packaging machine.

[Explanation of symbols]

12 ... Strip film 14 ... Tube film 15 ... Carry-in conveyor 16 ... Object to be packaged 20 ... Belt conveyor 22 ... Downhill slope 23 ... Seal bar 25 ... Cylinder maker 30 ... Rotating resistor 33 ... Belt 34 ... Brush 35 ... extra space 36 ... An element that gives an impact to the object to be packaged 40 ... Transport mechanism

Claims (3)

[Claims] 1. A belt-shaped film is horizontally moved to form a tube by a bag-making device, while a large number of articles to be packaged are carried into the tube film through the bag-making device at equal intervals in a column and at the rear of the tube-making device. In a bag-making filling and packaging machine that separates and seals each object to be packaged that is carried out by the transport mechanism of a pair of seal bars, the transport mechanism and the seal bars are along a descending slope with the rear end of the bag-making machine as an axis. A device in which a slip allowance space for an object to be packaged is formed between the rear end of the object supporting rotation resistor installed in the upper region of the transfer track and the seal bar. 2. The value of the package slip allowance space between the rear end of the package-supporting rotary resistor and the seal bar is adjusted by the displacement of the package-supporting rotary resistor.
The device according to. 3. The apparatus according to claim 1 or 2, wherein an element for applying a shock to the packaged object is installed in a slip allowance space area of the packaged object.