JP4149466B2 - Packaging bag replenishment method in packaging bag supply device - Google Patents

Description

  The present invention relates to a packaging bag supply method in a packaging bag supply apparatus attached to an automatic packaging machine.

  As a conventional packaging bag supply device of an automatic packaging machine, two bag supply cassettes are arranged side by side in the bag supply process of the packaging machine, and the side where the packaging bag is lost while one bag supply magazine is feeding The other bag supply magazine is manually refilled with a packaging bag and waits, and when one of the bag supply magazines is exhausted, it automatically switches to the other bag supply magazine and supplies the bag. A structure is used in which the supply magazines are alternately moved to continuously supply the packaging bags one by one to the grip pair on the packaging machine side. This type of "bag table automatic changer" is described in Japanese Patent Laid-Open No. 6-156761.

  In a conventional bag supply device, when switching to another bag supply magazine when one of the two bag supply magazines is out of packaging bags, it takes some switching time. It cannot be denied that there are only two or three empty stations that are not used. In view of such a problem, the present applicant installs the bag supply means so as to correspond to the two steps, respectively, thereby linking the supply operation of the packaging bag by one bag supply means and the other bag supply means. A bag supply means for continuously supplying bags (published in Japanese Patent Application Laid-Open No. 2004-269007) is proposed.

By the way, although the conventional packaging bag supply apparatus is designed to meet the packaging capability of the packaging machine, there is a limit to the number of packaging bags that can be accommodated in the bag supply magazine. For example, in a general packaging machine having a packaging capacity of 25 to 30 bags per minute, the stockable number of one bag supply magazine in the magazine-type packaging bag supply apparatus is about 500, so that there are about 17 to 20 packaging bags. It will be digested in minutes. For this reason, the packaging bag must be manually supplied to the other bag supply magazine within the time when the bag supply is performed by one bag supply magazine. However, the supply operation is very troublesome and troublesome. Under such circumstances, there is a demand for the development of a supply method that can automatically supply the packaging bag continuously for about 2 hours without being replenished in the middle.
Japanese Patent Application Laid-Open No. 6-156761 JP 2004-269007 A

  An object of the present invention is to provide a packaging bag replenishing method in a packaging bag supply device capable of automatically supplying a packaging bag continuously for at least two hours without replenishing the packaging bag halfway.

  In order to achieve the above object, the packaging bag replenishing method according to the first aspect of the present invention is configured such that a plurality of supply magazines capable of stacking and storing a large number of packaging bags are movable between a bag feeding position and a standby position. In a packaging bag supply device provided so as to feed the packaging bags in the supply magazine at the position one by one to the grip pair of the packaging machine, a large number of the supply magazines can be circulated in one plane, and the packaging bags When there are at least two supply magazines containing the supply magazine in the bag supply position and the supply magazine adjacent to the supply magazine, only the empty supply magazine after supplying the packaging bags is circulated and moved. While supplying the packaging bags to each supply magazine at the replenishment position, the entire supply magazine is moved to the bag supply position after all empty supply magazines have been refilled. Characterized in that the so that.

  In order to achieve the same object, the packaging bag replenishing method of the invention described in claim 2 makes it possible to move a plurality of supply magazines capable of stacking and storing a large number of packaging bags to a bag supply position and a standby position, and to supply them. In a packaging bag supply device provided to feed the packaging bags in the supply magazine at the bag position one by one into the grip pair of the packaging machine, a large number of the supply magazines can be circulated and moved in one plane. When the supply magazine containing the bags is only the supply magazine at the bag supply position, only the empty supply magazine after supplying the packaging bags is circulated and moved to each supply magazine at the replenishment position. The packaging bags are sequentially replenished, and all the empty supply magazines are replenished with the packaging bags, and then the entire supply magazine is moved toward the bag supply position.

(Invention of Claim 1 and Claim 2)
According to the packaging bag replenishment method in this packaging bag supply apparatus, by continuously moving a large number of supply magazines toward the bag feeding position, the packaging bags can be automatically fed continuously for about 2 hours without being replenished halfway. Can do. This eliminates the troublesome work of frequently replenishing the packaging bag.

  The best mode of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a state in which a packaging bag replenishing device to which the method of the present invention is applied is attached to a linear movement type packaging machine, and FIGS. 2 to 6 are schematic views for explaining a series of circulation movement states of a supply magazine. These are the schematic diagrams explaining each process of a linear movement type packaging machine.

  FIG. 1 shows a schematic configuration of a packaging bag supply device S in a packaging bag supply device to which the method of the present invention is applied, and a general linear mobile packaging machine P to which the supply device S is attached. The packaging bags targeted in the method of the present invention are mainly flat bags.

  As shown in FIG. 1 and FIG. 2, in this packaging bag replenishing device S, nine supply magazines 21 are supplied to the supply of the packaging machine P in one plane h divided into 12 pieces in a grid pattern. It is provided so as to be able to circulate toward the bag position i. A place other than the bag supply position i is a standby position, and one place in the standby position is set as a supply position k for supplying a packaging bag by an operator. The supply magazine 21 has a box shape with an open top, and is provided so that a large number of approximately 500 packaging bags a can be stacked and accommodated.

  In the initial state in which the packaging bags a are stored in the nine supply magazines 21 shown in FIG. 2, the supply magazine 21 sequentially moves along the path indicated by the arrow, and the packaging bags a from the supply magazine 21 at the bag supply position i. Are sucked by a bag feeding means (not shown) and fed one by one into the grip pair g of the packaging machine P. When the bag supply operation by the supply magazine 21 is completed, the entire supply magazine 21 is moved forward by one, and the bag supply operation is continued from the supply magazine 21 that has newly reached the bag supply position i. When the supply magazine 21 in which the packaging bag a is accommodated becomes the supply magazine 21 at the bag supply position i and the supply magazine 21 adjacent to the supply magazine 21, as shown in FIGS. Only the empty supply magazines 21 after supply of the packaging bags (seven units) circulate and move within a small range, and the packaging bags a are sequentially supplied to the supply magazines 21 at the supply position k by the operator. Then, when all the empty supply magazines 21 are replenished with the packaging bags a, the entire supply magazine 21 is sequentially moved again toward the bag supply position i. Yes.

  In this embodiment, a case is described in which supply work is started for the remaining empty supply magazines 21 when the supply magazines 21 containing the packaging bags a are the last two. By the way, the replenishment time is designed in consideration of the packaging capacity of the packaging machine P, but this may be configured so that the replenishment operation is started when the supply magazine 21 becomes the last one. It is possible (invention of claim 2). Even in this case, only one empty section is provided so that the empty supply magazines 21 excluding the supply magazine 21 during the bag feeding operation can be moved one by one within a small range. The number of sections and the number of supply magazines 21 may be appropriately determined without being limited to the number.

  The bag supply means is configured in accordance with the configuration described in Japanese Patent Application Laid-Open No. 2004-269007 according to the present applicant. That is, the bag supply means adsorbs the packaging bag a on the supply magazine 21 by the suction cup of the swing arm and delivers it to the turning arm, and sandwiches the packaging bag a lifted by the turning arm between the upper holding pieces, The packaging bags a are fed one by one from the sandwiching piece to the grip pair g.

  As shown in FIG. 1, the linearly movable packaging machine P converts a large number of grip pairs g into an upright posture and a horizontal posture on a moving body m that horizontally moves in an annular passage t composed of a straight portion and semicircular portions at both ends thereof. The packaging bag a supplied in the bag supply process is supported by each grip pair g, and the packaging bag a is intermittently stopped in each process such as an opening process, a filling process, a bag mouth sealing process, and a product discharging process. It is supposed to be configured. In this embodiment, the case where an infusion bag b as an article to be packaged is packed in the packaging bag a is taken as an example.

  The main process of the packaging machine P is described with reference to FIG. 7. The bag feeding process (1), the printing processes (3) to (4) for printing the date of manufacture, the expiration date, etc., the packaging bag from the vertical state to the horizontal state Horizontal inversion step (5), opening step (6), infusion bag insertion step (7), vertical inversion step (8) for returning the packaging bag from the horizontal state to the vertical state again, gas replacement step (10), bag mouth Sealing process (11), product discharge process (14), and the like.

  The bag supply position i in the packaging bag supply device S to which the method of the present invention is applied corresponds to the bag supply step (1). Assuming that the packaging machine P has a packaging capacity of 30 bags per minute and 500 supply bags a are stored in the supply magazine 21, the supply magazine 21 can supply about 17 minutes. Yes, when one supply magazine 21 is supplying a bag, the remaining eight supply magazines 21 can be automatically supplied continuously for 136 minutes.

  As described above, according to the packaging bag replenishing method in this packaging bag supply apparatus, by continuously moving a large number of supply magazines toward the bag feeding position, the packaging bags are continuously replenished for about 2 hours without being supplemented in the middle. There is an advantage that can be automatically supplied.

The top view which shows the state which attached the packaging bag supply apparatus to which this invention method was applied to the linear movement type packaging machine Schematic diagram explaining the circulation movement of the supply magazine (A) Schematic diagram explaining the circulation movement of the supply magazine (b) Schematic diagram explaining the circulation movement of the supply magazine (c) Schematic diagram explaining the circulation movement of the supply magazine (D) Schematic diagram explaining the circulation movement of the supply magazine (e) Schematic diagram explaining each process of the linear mobile packaging machine

Explanation of symbols

DESCRIPTION OF SYMBOLS S ... Packaging bag replenishment apparatus h ... One plane 21 ... Supply magazine a ... Packaging bag i ... Bag feeding position k ... Supply position P ... Linear movement type packaging machine g ・ ・ ・ Grip pair

Claims (2)

Multiple supply magazines capable of stacking and storing a large number of packaging bags can be moved to the bag feeding position and standby position, and the packaging bags in the supply magazine at the bag feeding position can be fed one by one into the grip pair of the packaging machine. In the packaging bag supply device provided in
A large number of supply magazines can be circulated and moved in one plane, and supply magazines containing packaging bags are at least two of the supply magazine in the bag supply position and the supply magazine adjacent to the supply magazine. Sometimes, after supplying the packaging bags, only the empty supply magazines are circulated and moved, and the supply bags are sequentially supplied to the supply magazines at the replenishment position, and all empty supply magazines are supplied with the packaging bags. A packaging bag replenishing method in a packaging bag supply apparatus, wherein the entire supply magazine is moved toward the bag supply position later. Multiple supply magazines capable of stacking and storing a large number of packaging bags can be moved to the bag feeding position and standby position, and the packaging bags in the supply magazine at the bag feeding position can be fed one by one into the grip pair of the packaging machine. In the packaging bag supply device provided in
A number of the supply magazines can be circulated and moved in one plane, and when the supply magazine containing the packaging bags is only the supply magazine at the bag supply position, the empty space after the packaging bags are supplied While only the supply magazine is circulated, the supply bags are sequentially supplied to the supply magazines at the supply position. After all the empty supply magazines are supplied with the supply bags, the entire supply magazine is directed to the supply position. A packaging bag supply method in a packaging bag supply apparatus, wherein the packaging bag supply device is moved.

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