JPS62146112A - Method and device for packaging article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is directed to a bag made of a film-like or net-like tube that is fed out from a charging cylinder, and is used to store and package articles. The present invention relates to a packaging method and a packaging device.

[Prior Art] A method for packaging an article by storing and packaging the article in a bag made of a film-like or net-like tube that is fed out from an input cylinder;
As devices, three-sided and four-sided seal automatic packaging methods, devices and tuck-type packaging methods and devices in which a tube is tucked around the outer periphery of a charging cylinder are known. Conventionally, these packaging methods and devices have been provided with a pedestal placed below the input tube to receive the bag, and this pedestal receives the bottom of the bag fed out from the input tube to support the bag vertically. In this configuration, the article is loaded from the input tube and stored in the bag, and the distance between the input tube and the pedestal is determined by the length of the bag.

[Problems to be Solved by the Invention] According to the above-mentioned conventional packaging method and device, the distance between the input cylinder and the pedestal is determined by the length of the bag. The height of the pedestal must be adjusted, which is very troublesome work, and pedestals with a height adjustment mechanism have a complicated structure and become bulky. In the case of a packaging device having a stand without a mechanism, there is a problem in that it is not possible to package bags of different lengths and other packaging devices must be used. Furthermore, since the bag fed out from the input tube is vertically supported by the pedestal and the articles are thrown in in this state, if the bag is long, the falling distance of the article will be correspondingly longer. They are easily damaged by the impact of falling, and fruit and other fresh foods, for example, are particularly susceptible to damage.
Furthermore, even if the product is assembled parts, it is likely to be damaged due to collision between the parts, and if the product is liquid, bubbles may form, making it difficult to package these products well. Furthermore, there is the problem that the bag may be damaged by the impact of falling articles, and the longer the bag is, the more this problem becomes more serious.

In view of the above points, this invention minimizes the distance between the input cylinder and the pedestal regardless of the length of the bag, and makes it possible to package bags of any length without adjusting the height of the pedestal. The present invention provides an article packaging method and packaging device for the purpose of the present invention.

[Means for solving the problem] The article packaging method of the first invention is a method for packaging articles in which the article is housed and packaged in a bag made of a film-like or net-like tube fed out from an input tube. First, the bag is fed out from the input tube until its bottom touches the bag receiving stand located below the input tube, or after the bag is fed out, the article is input, and while the article is input, the bag is further moved into the input tube. After the bottom of the bag reaches the pedestal, the bag received on the pedestal is fed horizontally according to the amount of the bag fed out.
The lateral feeding of the bags received on the stand is stopped in synchronization with the stop of feeding out the bags upon completion of loading the articles into the bags.

Further, the packaging device of the second invention is an article packaging device for storing and packaging articles in a bag made of a film-like or net-like tube fed out from a charging tube, wherein the loading tube is provided with a bag made of a film-like or net-like tube. A bag feeding device that feeds out bags continuously per hour is provided, and a pedestal is provided below the feeding tube to receive the bags fed from the feeding tube. The present invention is equipped with a bag feeding mechanism that horizontally feeds the received bag in response to the bag and stops the horizontal feeding in synchronization with the stop of feeding out the bag upon completion of inserting articles into the bag.

[Function 1: Items are fed into the bag while the bag is being fed out from the feeding cylinder, and this feeding of the bag continues until the feeding of the items is completed, and the feeding of the bag is stopped when the feeding of the items is completed. and,
When the bottom of the fed-out bag comes into contact with the pedestal, the bag feeding mechanism of the pedestal is activated to move the bag according to the amount of the fed-out bag, and as a result of this movement, the part of the bag containing the articles is sequentially overturned. The bag is then fed horizontally while being supported in the same state, and when the loading of the articles into the bag is completed and the feeding of the bag stops, the bag feeding mechanism also stops.

[Example] Hereinafter, the packaging method and packaging apparatus of the present invention will be explained in detail based on the example shown in the drawings.

First, the invention of a method for packaging articles will be explained.

In an article packaging method in which articles are stored and packaged in a bag made of a film-like or net-like tube that is fed out from an input tube, the bag is first placed from the input tube onto a bag receiving frame located below the input tube. The bag is fed out until the bottom part touches the bag, or after the bag is fed out, the item is put into the bag. While the item is being put in, the bag is further fed out from the charging tube. Once it reaches the pedestal, the bags received on the pedestal are fed sideways according to the amount of bags that are subsequently fed out.6The bag is then supported in a state where the part of the bag containing the articles on the pedestal is sequentially turned sideways. being sent sideways. Next, the horizontal feeding of the bag is stopped in synchronization with the stop of feeding out the bag upon completion of loading the articles into the bag.

Next, an embodiment of the invention of a packaging device used to carry out the invention of the above article packaging method will be described.

The drawing shows a three-sided seal type automatic packaging device in which the invention of the packaging device is implemented, and 1 is a machine body, and 2 is a loading cylinder for loading articles supported by the machine body 1 in an inclined state. Of course, this loading tube 2 may be supported vertically to the machine body 1, but by supporting it at an angle, the articles thrown into the loading tube 2 can be received on the inclined surface. It is possible to reduce the falling speed of objects and prevent damage to objects caused by falling impact. 3 is a film roll, 4
5 is a film, and 5 is a film winding guide plate. This film winding guide plate 5 winds the film 4 into the feeding tube 2, and the film 4 wound into the feeding tube 2 by the vertical adhesive device 6 is made into a tube shape. . This tubular film is fed out as a bag 7 below the input cylinder 2 by a bag feeding device 8, but the state of this feeding is strictly regulated by the bag feeding device 8. The operation of this bag dispensing device 8 will be described later. Reference numeral 9 denotes a horizontal gluing/cutting device located below the input cylinder 2, and this horizontal gluing/cutting device 9 consists of a fixed receiving bond/cutting body 1O and a unilaterally movable bonding/cutting body 11.
When an article is loaded from the input tube 2 into the bag 7 fed out below the input tube 2, the bag 7 is clamped in the lateral direction and melted to be bonded and cut. 12 monitors whether or not the articles stored in the bag 7 do not interfere with the operation of the horizontal gluing/cutting device 9 after putting a predetermined amount of articles into the bag 7; and a monitoring device that regulates the operation of a bag feeding mechanism provided on a pedestal, which will be described next, and this monitoring device 12 is provided directly below the horizontal gluing/cutting device 9. Although an optical sensor is used as this monitoring means, it is not limited to this. Reference numeral 13 denotes a pedestal for receiving the bags 7 fed out from the charging tube 2, and this pedestal 13 is arranged in the direction of inclination of the loading tube 2. It is provided in a horizontally elongated manner approximately horizontally or inclined in the direction of movement. Further, this pedestal 13 is provided below the charging tube 2, that is, below the monitoring device 12, and the distance between the pedestal 13 and the loading tube 2 is as follows.
It is sufficient that at least a distance corresponding to the diameter of the bag 7 is provided between the monitoring device 12 and the pedestal 13. 14 is the pedestal 13
The bag feeding mechanism is equipped with a bag feeding mechanism, which receives the bags 7 fed out from the feeding tube 2 on its upper surface, and feeds the bags horizontally according to the amount of the bags 7 fed out from the feeding tube 2. This bag feeding mechanism 14 forms the upper surface of the pedestal 13, and supports the bags 7 fed out from the input tube 2, and includes a bell 15 for transporting the bags 7 and a motor (not shown) for moving the belt 15. The drive of this motor starts when it is confirmed that the bottom of the bag 7 which has been fed out onto the belt 15 and contains the articles comes into contact with the bottom, and when the loading of the articles into the bag 7 is completed. When the feeding of the bag 7 stops, it stops and the horizontal feeding of the bag 7 is stopped.

The bag feeding device 8 that feeds out the bags 7 from the feeding cylinder 2 and the bag feeding mechanism 14 that supports and cross-feeds the fed bags 7 are each controlled by appropriate means! In this way, when the loading of the articles into the bag 7 is completed and the feeding of the bag 7 is stopped, the horizontal feeding of the bag 7 in the part containing the articles is also stopped, and after this, the horizontal adhesion - The upper part of the bag 7 is glued and cut by the cutting device 9 to complete the packaging of the article, but this horizontal gluing and cutting device 9
Prior to gluing and cutting the bag 7, the above-mentioned monitoring device 12 monitors whether there is an object that obstructs gluing or cutting in the relevant part, and if there is an object that obstructs the gluing or cutting, the obstruction is further removed. The bag feeding device 8 and the bag feeding mechanism 1
4, the bag 7 is fed out and the bag 7 is fed laterally by that amount. This monitoring device 12 uses an optical sensor, but is not limited to this, and this monitoring device 12 is not necessarily required for the present invention.

[Effects of the Invention] According to the packaging method and packaging device of the present invention having the above-described configuration, articles are fed into the bag while feeding the bag from the feeding cylinder, and this feeding of the bag continues until the feeding of the articles is completed. ,
When the bag feeding is completed, the feeding of the bag stops, and when the bottom of the fed bag comes into contact with the pedestal, the bag feeding mechanism of the pedestal is activated to move the bag according to the amount of the bag fed out, and this movement As a result, the bag is transported horizontally while being supported in a state in which the parts containing articles are sequentially laid down.

Therefore, if the bag containing the item is long,
It is sufficient to increase the amount of bags fed out from the input cylinder and increase the horizontal feeding of the bags according to the amount. Also, if the bag containing the article is short, the amount of bags fed out from the input cylinder can be reduced and the horizontal feeding of the bags can be increased. The distance between the loading tube and the stand can be determined regardless of the length of the bag, so there is no need to adjust the height between the loading tube and the stand depending on the length of the bag, unlike in the past. As a result, the structure is simpler, the device can be made more compact, and the height of the device can be lowered, making the work easier. Since it can be made as short as possible to the minimum necessary, it is possible to shorten the distance from which objects fall from the input cylinder.
This method has excellent effects as a method and device for packaging articles, such as less impact caused by dropped articles and being able to prevent damage, breakage, etc.

[Brief explanation of drawings]

The drawing is a front view showing an example of the present invention implemented as a three-sided seal type automatic packaging device.

Claims (2)

[Claims] (1) In an article packaging method in which articles are stored and packaged in a bag made of a film-like or net-like tube that is fed out from a feeding tube, the bag is first placed in a bag receiver located below the feeding tube. The bag is fed out until its bottom touches the pedestal, or after it has been fed out, the article is put in, and while the article is being thrown in, the bag is further fed out from the charging cylinder, and after the bottom of the bag reaches the pedestal. The bags received on the pedestal are fed horizontally according to the amount of bags fed out, and the horizontal feeding of the bags received on the pedestal is stopped in synchronization with the stop of feeding out the bags when the loading of articles into the bags is completed. A method of packaging an article characterized by: (2) In an article packaging device that stores and packages articles in a bag made of a film-like or net-like tube that is fed out from a charging tube, bags are continuously placed in the loading tube until the end of loading the articles into the bag. A bag feeding device is provided, and a pedestal is provided below the feeding tube to receive the bags fed out from the feeding tube,
This frame is equipped with a bag feeding mechanism that feeds the received bags horizontally according to the amount of bags fed out from the input cylinder, and stops the horizontal feeding in synchronization with the stop of feeding the bags when the loading of articles into the bags is completed. Packaging equipment equipped with