JPS63247247A - Method and device for correcting conveyance orientation of soft sheetform article - Google Patents

Abstract

PURPOSE:To perform reliable correction of orientation of a soft sheetform article, by a method wherein orientation of an article under conveyance is detected, compressed air is injected from below on the side of a subsequent article to float the one side, and only the other side is conveyed forward. CONSTITUTION:A soft sheetform article 3 is placed on a conveyance belt 10 for conveyance. A top plate 22, being a press plate, is situated in place to the conveyance belt 3, and through-holes are formed on both sides in a conveyance direction to detect the article 3 by means of photoelectric tubes 23a and 23b. Injection nozzles 25a and 25b are situated below the conveyance belt 10 on the downstream side of a photo-electric tube 23 position of the top plate 22 and on both sides of the advancing direction so that upward injection can be effected. When the article 3 is conveyed in oblique orientation on the belt 10, the one side of the article 3 is detected by the one photo-electric tube 23, and compressed air is injected through the injection nozzle on the same side to float the one side of the article 3 to suppress the progress of the article by means of the top plate 22, and only the other side is progressed to correct orientation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for correcting the conveyance posture of a soft sheet-like article.

(Prior art) Conventionally, when packaging soft sheet-like articles such as plasters such as poultices, a relatively large raw material for the poultice was first prepared, and the raw material was continuously drawn out. After transporting the poultice in the form of a band, cutting it into a predetermined shape in the vertical and horizontal directions during transport to form a poultice, the poultice is assembled into a predetermined number of sheets and wrapped with three-sided seals, four-sided seals, etc. to create flat packaging. The body was manufactured continuously.

This poultice is usually applied by applying spring break on a cloth member,
Furthermore, a synthetic resin film is laminated above the plaster to prevent hardening and to prevent the poultices from adhering to each other when stacked.

Therefore, if the original fabric is transported in a cut state,
There is a tendency for the adhesive strength of the paste itself to slightly stick to the area where the adjacent moist A-D medicine is cut. The cut poultices are arranged so that the conveyance path gradually expands toward the tip so that the poultices are separated from each other, and each poultice is separated and conveyed and then packaged.

(Problem to be solved by the invention) However, in the conventional method, when the cut poultices gradually separate from each other, due to the influence of light adhesion between the cut poultices, the poultice is transferred to the conveying means. This results in various postures with respect to the conveyance direction. That is, it is inclined with respect to the conveyance direction of the poultice before cutting. Therefore, if the poultice is transferred to the next packaging means as it is, the poultice will be supplied to the packaging means in an inclined state.

As a result, when the poultice is stored in the packaging film, it does not fit within the packaging film, but instead protrudes from the packaging film, resulting in the problem of being unable to be packaged and resulting in defective products.

As a means to solve this problem, a set of guide plates is provided on both sides of the conveyance path during separation, and the poultice is held between the guide plates to ensure correct conveyance posture (orientation).
It is also possible to modify it.

However, with such means, relatively thick and hard articles can be corrected smoothly, but in the case of soft sheet-like articles such as poultices, both sides of the article can be corrected smoothly. If the article is clamped, it will not move along the guide plate, but will be crushed and deformed into a wave-like shape, and its posture cannot be corrected in the correct direction. In addition, if the item is a poultice as mentioned above, a highly adhesive plaster is exposed or slightly filled from the periphery, so the plaster adheres to the guide plate and stains the kite board. The surface of the guide plate becomes uneven.

Furthermore, there is a risk that the poultice itself will stick to the guide plate and inhibit its progress, making it impossible to reliably correct the conveyance posture of the article.

In addition, even if the product is conveyed while moving apart as described above, even if the product is conveyed straight, the original fabric may be tilted when transferred to the conveyance means after cutting. Having a similar problem.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to correct the conveyance posture of a soft sheet-like article by easily and accurately correcting the conveyance posture of the soft sheet-like article. The present invention provides methods and apparatus.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the first invention according to the present invention, a soft sheet-like article is conveyed, and the conveyance posture of the article is detected during the conveyance. , compressed air is injected from below the side of the article that is traveling first to levitate only one side of the article in the traveling direction so that only the opposite side of the article is moved forward, and then to make sure that it is in the correct position. When this is detected, the injection of the compressed air is stopped and the conveyance posture of the article is corrected.

In addition, a device which is a second invention that effectively achieves the invention of the method described above includes a conveying means for conveying a soft sheet-like article while separating it, and a conveying means disposed in the middle of the conveying means to control the conveying posture of the article. a detector for detecting 4; a compressed air injection means connected to the detection means and disposed below the conveyance means; and a compressed air injection means disposed above the conveyance means facing the compressed air injection means, the and means for receiving the article floated by the means.

(Function) The conveyance posture of a soft sheet-like article is detected, and if the article is tilted, compressed air is injected from below the leading side of the article to levitate only one side of the article. Cuts off the transmission of conveying force. Then, since only the opposite side receives the conveying force, the article is rotated and corrected in the correct orientation.

When the injection of compressed air is stopped, the article is in the correct posture, and the floating side descends onto the conveying means again, so that the conveying force is transmitted to the entire surface of the article, and the article is conveyed in the correct orientation. Ru.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a plan view showing a preferred embodiment of the present invention. As shown in the figure, a wide, continuous belt-shaped sheet is pulled out from the original fabric and cut into predetermined lengths in a direction perpendicular to the direction of travel. a first conveying device 2 that conveys intermediate products 1 formed at predetermined intervals; a second conveying device 5 that conveys the articles 3 formed by cutting 1 to a predetermined width while separating them from each other; and a first conveying device that is disposed adjacent to the tip of the second conveying device 5. 2 and a third conveyance device 7 arranged in the same direction form a conveyance path.

The first to third conveyance devices 2.5.7 each include a plurality of endless bells 1 to 10 installed between a pair of boos 1 to 8 rotatably disposed at the front and rear ends. This pulley 8 is fixed to a rotating shaft 13 provided at a predetermined position on a machine frame 12 that is arranged so as to surround both sides of each conveying device, so that each pulley 8 can rotate in synchronization. It has become. Further, a predetermined number of concave grooves are provided around the outer peripheral surface of each pulley 8 so that each endless belt 10 can rotate in a stable state.

Further, in this embodiment, since three articles 3 are formed from the intermediate product 1, each conveyance device has three conveyance paths, and the second conveyance device 5 separates and conveys the product. The endless bell 1~ in the center is designed to move straight, but the endless bells 1~ on the left and right sides are arranged at an incline so that they do not go to the tip in the direction of travel, but expand.

On the other hand, a cutting device 14 for cutting the intermediate product 1 into articles 3 of a predetermined width is disposed near the tip of the first conveying device 2, and this cutting device 14 is composed of a pair of upper and lower rotary cutters. has been done.

Here, in the present invention, the article 3 is placed in the middle of the second conveyance device 5.
Direction correction means 20 for correcting the conveying posture of the paper is provided.

That is, as shown in FIGS. 1 and 2, a top plate 2 serving as a holding plate is placed on the machine frame 12 at an approximately intermediate position of the second conveying device 5.
A through hole is bored in a predetermined position of this top plate 2-7=2, and a phototube 23 serving as a detection means is placed in an upright position with the detection part facing downward in the through hole. There is. This phototube 23 is installed near both sides of each conveyance path.
Each phototube is arranged in such a way that the line connecting both phototubes 23 and the traveling direction of the third transport device 7 are orthogonal to each other.

Further, below the second conveyance device 5, a nostle 25 connected to a compressed air injection device is arranged close to the rear side of the phototube 23 in the traveling direction. This compressed air injection device operates both nozzles 25 by a signal obtained from the phototube 23.
Compressed air is injected upward from one side.

A known packaging device is disposed at the tip of the third conveyance device 7, and each article 3 is supplied to this packaging device to produce a package.

Further, the article 3 used in the above embodiment uses a poultice having a three-layer structure as described in the prior art.

Next, the method of the present invention will be explained based on the above embodiments. First, the intermediate product 1 cut into a predetermined length is
The three articles 3 are conveyed at predetermined intervals by the conveyor 2 and cut into a predetermined width by the cutting device 14 during the conveyance.
is manufactured and transferred to the second transport device 5 at the next stage. Then, each of the three articles 3 is transported forward by the adjacent second transport device 5 while gradually separating from each other. Then, each article 3 is conveyed along the traveling direction of each conveyance path, and its conveyance posture is gradually rotated. In other words, it is transported while being inclined with respect to the traveling direction of the third transport device 7. In particular, the article 3 conveyed on the expanding left and right conveyance paths
The direction of the phenomenon is markedly oblique. Taking as an example an article passing through the conveyance path on the right side of the traveling direction, the article 3 is conveyed in substantially the same direction as the conveyance path, as shown in FIG. 3(a). Then, first,
The article 3 is detected by the inner phototube 23a.

At this time, the outer phototube 23b does not detect the article 3. Thereby, it can be determined whether the article 3 is inclined with respect to the third conveyance path 7. A signal of this information is transmitted to the compressed air injection device, and compressed air is injected upward from the nozzle 25a on the advancing side, that is, on the inner side in the direction of movement detected by the phototube 23a. As a result, the article 3 is lifted up, but since the article 3 is in the form of a soft sheet, the side that is hit by the compressed air, that is, the inside, is lifted up and either comes into contact with the top plate 22 located above it in a pressed state, or the opposite side. side (outside)
is maintained on the endosil belt 10 (see FIG. 2(b)). Therefore, the outside of article 3 (second
Since only the left side in the figure receives the conveying force from the endless belt 10, the article 3 rotates counterclockwise around the location where it is pressed against the top plate 22. Then, when the article 3 rotates and the inner phototube 23b detects the article 3 (see FIG. 3(b)), it means that the article 3 has been corrected in the correct orientation with respect to the third conveyance device 7. Stop compressed air injection. Then, the upward urging force of the compressed air on the article 3 disappears, so that the entire surface of the article 3 comes into contact with the endless belt 10 again, and the article 3 is conveyed.

In this way, the conveyance posture of the article 3 can be corrected without pressing inward from both sides of the article 3 or directly contacting the article 3, so that even a soft sheet-like article can be reliably corrected.

Then, the article 3 is either transferred to the third conveyance device 7 in that state, or the article 3 is corrected by the orientation correcting means 20 in the previous stage so that it faces in the same direction as the traveling direction of the third conveyance device 7. Even if the packaged product is fed as it is to the packaging device at the previous stage, the packaging operation is carried out smoothly and reliably, and the packaged body is manufactured.

In addition, in the above-described embodiment, the articles were transferred to the left and right (especially right side) conveyance paths, but each article 3 cut in the same direction as the traveling direction was transferred to the second conveyance device 5. When carrying out the process, the adjacent articles 3 are smoothly separated from each other due to the adhesive force of the paste, or the articles 3 are transferred to the second conveying device 5 in an inclined state from the beginning, or each conveying path of the conveying device is Since it is composed of a plurality of endless belts, although they are synchronized, there may be a difference in the rotational speed of each endless belt, and even in such a case, the article 3 will be tilted. That is, the same attitude correction can be used for articles that are transported not only on the left and right inclined transport paths but also on the central transport path arranged in the same direction.

Further, in the above embodiment, a phototube was used as the detection means, but various detection methods such as a so-called image sensor or a microswitch can be used, and furthermore, the position of the phototube is limited to the upper part of the conveyance device. Needless to say, this is unprecedented.

Further, although an endless belt has been described as a conveying means, various other means such as a mesh chain can also be used.

(Effects of the Invention) As described above, in the method and apparatus according to the present invention, even if the conveyance posture is tilted, even if the conveyance posture is inclined, compressed air can be injected to reliably and smoothly convey the object. The conveyance posture can be corrected.

Therefore, even if the product is supplied to the next-stage packaging device, the packaging operation can be performed reliably.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the method and apparatus for correcting the conveyance posture of a soft sheet-like article according to the present invention, and FIG. 2(a)
, (b) is an enlarged front view of the main part, Fig. 3 (a), (b)
2 is an enlarged plan view of the state shown in FIG. 2, viewed from above. 2... First conveyance device 3... Article 5... Second conveyance device 7... Third conveyance device 20... Orientation correction means 22... Top plate 23... phototube
25...Nozzle patent applicant Omori Machine Industry Co., Ltd. Agent Patent attorney - Color
Kensuke Patent Attorney Masatoshi Matsumoto 3 (a) Figure (b)

Claims (2)

[Claims] (1) A soft sheet-like article is conveyed, the conveyance posture of the article is detected during the conveyance, and compressed air is injected from below the side of the article that is traveling first in the direction of travel of the article. one side is raised so that only the opposite side of the article is transported forward;
A method for correcting the conveyance posture of a soft sheet-like article, characterized in that the conveyance posture of the article is corrected by stopping the injection of the compressed air when the correct position is detected. (2) A conveyance means for conveying a soft sheet-like article, a detection means disposed in the middle of the conveyance means to detect the conveyance posture of the article, and a detection means connected to the detection means and disposed below the conveyance means. and a means for receiving the article levitated by the jetting means, which is disposed above the conveying means and facing the compressed air jetting means. A device for correcting the conveyance posture of sheet-like articles.