JPH04115105U - Continuous packaging machine using strip-shaped packaging materials such as half-folded film - Google Patents

Abstract

(57) [Summary] [Purpose] A film half-folding device that is space-saving, easy to operate, and easy to connect to automatic packaging equipment, and prevents adhesion between films during transport of half-folded films to automatic packaging equipment. do. [Structure] A first guide member whose half in the width direction has a downwardly inclined portion of approximately 45 degrees; A second guide member disposed on the front surface and rotatable around its end; a guide roller disposed directly below the second guide member; A film half-folding device comprising a substantially L-shaped film separation member is connected to an automatic packaging device equipped with a half-folded film opening mechanism.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention uses rolls of packaging materials such as films and synthetic resin laminates. The packaging material is pulled out and folded continuously in two along the longitudinal direction for the next process. A half-folding device for packaging materials such as films that is supplied to The present invention relates to a continuous packaging machine that is combined with an automatic packaging device for packaging accessories.

0002

[Conventional technology]

This kind of continuous packaging machine is disclosed, for example, in Japanese Patent Application Laid-open No. 47-29087. Packaging materials such as films that are continuously drawn horizontally from a winding roll, as in (hereinafter simply referred to as the film). A guide roll guides the packaging material almost vertically upward from its isosceles part. The bifold film is then continuously folded into two, the so-called half-fold Turn the film over, change the direction while opening the opening, and insert the packaged item into the opening. However, a continuous automatic packaging machine has been proposed that seals the peripheral opening.

0003 (Problem that the idea aims to solve) However, according to such conventional technology, the film half-folding device itself is There was a problem that the installation area became extremely large. In other words, from the winding roll to the next processing On the way to the winding section or packaging section, the film is horizontally passed through guide rolls. It is pulled out, then moved vertically upward while being folded by a guide plate, and then The tray is transported horizontally in a direction perpendicular to the drawing direction through guide rolls of the drawer. At least three turning points are required, which requires not only the installation area but also the installation space. The installation space becomes larger.

0004 In addition, even if the above-mentioned packaging device has a mechanism for opening the half-folded film, for example, For example, the opening may be encapsulated as disclosed in U.S. Pat. No. 3,583,888. It has not been put into practical use because it is difficult to insert the accessory with a simple device. was the actual situation. Recently, we have been continuously supplying long films that have been folded in half. , the half-folded film is opened through the opening device, and a belt conveyor is placed in the opening. After inserting and arranging the packaged items, the same belt conveyor intermittently feeds the packaged items. , an automatic packaging machine that closes the opening using an L-shaped sealing device, etc. It was proposed and put into practical use in Publication No. 0567. This is specially devised For the first time, by inserting a thin thin conveyor belt into the opening of the film. The article to be packaged can be easily and reliably inserted into the opening of the film. It's because of that.

[0005] Nevertheless, these automatic packaging machines still have A fully automatic packaging machine connected to a film half-folding device as disclosed in Publication No. 87 has been put into practical use. The roll of film, which has been wound in a half-folded state, is temporarily supplied to the automatic packaging machine. It is installed in the feeding section, and the half-folded film is again supplied from the same roll to the packaging section for automatic packaging. The current situation is that

[0006] The reason why we have to do this is that the problem of the installation space of the half-folding device mentioned above is the main obstacle. It depends on what is causing it.

[0007] On the other hand, film materials have recently diversified, and films with various properties and structures have become more diverse. With the advent of film, it has come to be used as a packaging material. For example, air Thick items such as caps, functional items such as laminated films, Alternatively, it may have an adhesive surface.

[0008] However, after winding up a film made of these materials into a roll in a half-folded state, If you try to open it while pulling it out, static electricity will be generated due to friction during winding. Blocking due to adhesion between raw materials or films becomes stronger, causing various inconveniences. Or, because it is in a half-folded state, the winding diameter increases quickly, and one roll This causes the inconvenience that a desired film length cannot be prepared.

[0009] Therefore, in order to solve these inconveniences, the above-mentioned half-folding device must be used at all costs. In addition to achieving compactness, it also eliminates inconveniences caused by film blocking, etc. It becomes essential to remove them.

0010 Therefore, the main purpose of this invention is to rationally and continuously cut film halves in a narrow space. The objective is to develop a new folding mechanism that enables folding. Another purpose of the present invention is to create a flap that has excellent operability and is easy to connect to automatic packaging machines. We developed a film half-folding device and combined this film half-folding device with the above-mentioned automatic packaging device. The aim is to combine them and achieve complete automation. Furthermore, another object of the present invention is to fold a film in half using the above-mentioned film half-folding device. Enough and reliable opening without adhesion before reaching the above automatic packaging equipment. Our goal is to develop a fully automatic packaging machine that can do this.

[0011]

[Means to solve the problem]

In order to solve the above problems, this invention is made from films, synthetic resin laminates, etc. A half-folding system that continuously folds long packaging materials in half in the longitudinal direction and supplies them to the next process. Then, open the packaging material supplied from the half-folding device and turn it over so that the cross section is approximately the same. It is fed in a direction perpendicular to the feeding direction, and while being fed, the packaged items a packaging device for conveying a product into said opening and then closing said opening of packaging material; The half-folding device is arranged adjacent to a half-folding packaging material supply section of the packaging device. , a packaging material winding roll support section installed parallel to the half-fold packaging material supply section; , disposed above the winding roll and parallel to the roll axis, and substantially oriented around the packaging material. A horizontal guide part with a half-width length and a downward slope of about 45 degrees connected to one end of the horizontal guide part. a first guide member consisting of two inclined guide portions; and a front surface of the first guide member in the packaging material supply direction; is disposed close to the horizontal guide section, and extends from at least the upper end of the inclined guide section to the horizontal guide section. a second guide member comprising an inclined guide portion having a downward slope of approximately 45 degrees at the lower end thereof; disposed below the inclined guide part of the second guide member and parallel to the winding roll axis; a guide roller having a length of at least approximately half the width of the packaging material; The inclined guide portion of the second guide member extends in a direction away from the guide position centering on its lower end. is rotatable and is installed close to the lower circumferential surface of the guide roll, At least a film supply path extending in the film supply path between the guide roll and the packaging device; A film separation member inserted into the opening of the half-folded film supplied to the packaging device. The main part of the device is a half-folding device for strip-shaped packaging materials such as films, which is characterized by being equipped with The structure is as follows.

0012

[Effect]

A wide film that is pulled vertically upward from a roll of wide film. The half width is folded horizontally downward in the horizontal guide part and the inclined guide part of the first guide member. The remaining half width is folded downward approximately 45 degrees, and then the horizontal guide portion of the first guide member is folded downward. Fold vertically downward along the inclined guide part of the second guide member disposed close to the front. and a half-width portion extending downward through the horizontal guide portion of the first guide member and the second guide member. The half-width part of the guide member that passes through the inclined guide part and goes downward, and the It is folded in half while moving forward, and is guided by guide rollers installed below. The material is supplied by changing the direction horizontally, but at least it passes through the guide roll. At the time when the film separation member is inserted into the opening of the half-folded film, The film separation member separates the half-folded film into upper and lower openings for the next process. is sent to the above-mentioned packaging device.

[0013] In this packaging device, the half-folded film separated into upper and lower parts is opened through an opening mechanism. While the cross section is opened in a substantially U-shape, the direction is turned at right angles and fed. This rectangular rotation A belt controller is inserted into the film opening on the opposite side and installed in the longitudinal direction of the packaging machine. The articles to be packaged are sequentially fed by the conveyor at predetermined intervals. After that, L-shaped Two sides of the opening of the packaged article are sealed through a sealing device.

[0014] Therefore, according to the packaging machine of the present invention, a wide film can be drawn out from the winding roll. The paper is folded in half while being turned vertically upwards approximately 360 degrees, and then sent horizontally to the next process. Because of this, the footprint of the half-folding device is large enough to allow the film to be wound directly from the roll to the next process. It only requires an area equivalent to the part that is fed horizontally, and moreover, it can be folded in half. Since the film is fed horizontally, it is easy to connect to packaging equipment. In addition, in the present invention, a wide film is set from the first guide member to the second guide member. When moving, move the inclined guide part of the second guide member away from the first guide member with its lower end as the center. Rotate the guide members in the direction that they This makes it easier to insert the film, and the second guide member can be removed after the film has been inserted. Return it to the set position, fix it, and start operation. Furthermore, in this invention, due to the presence of the film separation member, even if the film is highly adhesive, Check the opening of the half-folded film when or after passing the guide roll. In fact, it is necessary to feed the half-folded film into the opening mechanism of the packaging device while separating it into upper and lower parts. This makes it easy to open the half-folded film using the same opening mechanism.

[0015]

【Example】

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments. Figure 1 is a typical example of this invention. FIG. 2 is a perspective view showing the entire structure of a fully automatic packaging machine as an embodiment, and FIG. A schematic configuration diagram of a typical film half-folding device, Figure 3 is a guide applied to the same half-folding device. It is a perspective view showing the shape of members and their arrangement relationship.

[0016] The main components of the film half-folding device adopted in this invention are the first and second guide parts. Made of wood. The parts indicated by 1 and 2 in the figure indicate the respective guide members, one of which is the first guide part. As shown in Figure 3, the material 1 has a horizontal guide part 1-1 having a length of approximately half the width of the film at its upper end. , an inclined guide part 1-2 having the same length in the horizontal direction and inclined downward at approximately 45 degrees; It is made up of a trapezoidal flat plate that is connected in series. The other second guide member 2 is shown in FIG. It is also composed of a flat plate whose upper end forms an isosceles shape of a right-angled isosceles triangle. Ru. However, one side of the isosceles of the second guide member 2 is substantially the inclined guide portion 2-1. The other side does not directly function as a guide.

[0017] The first guide member 1 and the second guide member 2 having such a configuration are Sandwiching the bending point 1-3 of the flat guide part 1-1 and the inclined guide part 1-2 and the right angle of the second guide member 2. Place the front side of the first guide member 1 and the back side of the second guide member 2 so that the apexes 2-2 face each other. The planar parts of each guide member 1 and 2 are placed upright as shown in Figure 2. and fix it to a frame, etc. (not shown). Further, the inclined guide portion of the second guide member 2 2-1 can be rotated by a predetermined angle in the vertical direction around its lower end shaft portion 2-3. has been done. The rotation range is such that the apex 2-2 of the second guide member 2 is the same as that of the first guide member 1. Be within an angle range of approximately 45 degrees downward from the position opposite the bending point 1-3 above. is preferred, but is not limited to this range.

[0018] A wide film 3 is placed directly under the back side of the first guide member 1 thus erected. A wound roll 4 is installed with its axis parallel to the horizontal guide section 1-1. Also , a guide roller 5 is provided at the lower part of the front side of the second guide member 2 in parallel with the winding roll 4. will be installed. Folded in half by the first guide member 1 and the second guide member 2 The half-folded film advances along the lower circumferential surface of the guide roller 5, and moves horizontally from the hanging direction. The running direction is converted to the direction.

[0019] This half-folded film direction changing part is located close to the guide roller 5 and has a half-folded film. A film separation plate 9 formed in a substantially L shape is arranged along the running path of the lum. . The film separation plate 9 is made of hard synthetic resin or metal material such as stainless steel. , both the front and back surfaces are made into uneven surfaces by satin finishing or the like. This is a film and This is to ensure that the film slides on the separation plate by reducing the contact area as much as possible. be. Therefore, if the slippage of the film is to be ensured, it is limited to the above-mentioned uneven surface. For example, the surface may be treated with Teflon to prevent adhesion of the film. The separation plate 9 may be provided with a physical property that excludes it, or the structure of the separation plate 9 may be configured in a lattice shape. is also possible.

[0020] In the above configuration, the half-folding mechanism of the film 3 will be explained with further reference to FIG. I will clarify. FIG. 4 schematically shows the process in which the film 3 is folded in half. For convenience of explanation, the first guide member 1 and the second guide member 2 are omitted.

[0021] 1 and 2, first, the film 3 to be pulled out from the winding roll 4 is shown in each case. In order to set it on the internal members 1 and 2, the second guide member 2 is moved downwardly in advance around the shaft portion 2-3. Rotate the film 3 and pull it up while aligning the film 3 with the back surface of the first guide member 1. , fold forward along the inclined guide part 1-2 of the guide member 1, and fold it forward along the horizontal guide part 1-2. Fold forward along 1-1. Through this folding operation, the film 3 is be folded along the longitudinal direction at the bending point 1-3 as clearly shown in Figure 4; become. Now, rotate the second guide member 2 upward around the shaft part 2-3, and The apex 2-2 of the inner member 2 is returned to a position facing the bending point 1-3 of the first guide member 1. this When rotating, the second guide member 2 is attached to the inclined guide part 1-2 of the first guide member 1. On the front side of the film 3 that has been folded along, two films 3 that have been folded in half Rotate it so that it is inserted into the back of the If this rotation operation is not performed, the first guide Introducing the film 3 from the member 1 to the second guide member 2 becomes complicated, reducing work efficiency. This will lead to a decrease in

[0022] The film 3 is thus guided from the first guide member 1 to the second guide member 2 in the longitudinal direction. It moves downward while being folded in half along the direction. Half-folded film 3 guides Before reaching the roller 5, a film separating plate 9 is inserted inside the half-folded film 3. The upper and lower films of the half-folded film 3 are completely separated, and the guide roller 5 Even when changing direction, the upper and lower films of the half-folded film 3 do not come into contact with each other. Moreover, it changes the direction of movement from vertical to horizontal while folded. It is introduced into the next process, automatic packaging equipment.

[0023] In this embodiment, the automatic packaging device is disclosed in the above-mentioned Utility Model Publication No. 60-20567. An example of a device used in this study is given below.

[0024] Therefore, in this explanation, the detailed explanation will be left to the description in the above publication, and Figure 1 This will be briefly explained using a schematic diagram.

[0025] In FIG. 1, reference numeral 6 denotes a mouth opening device disposed in the transfer section of the article 8 to be packaged. One side perpendicular to the introduction direction of the half-folded film 3 and the downstream side of the packaged article 8 Two right-angled isosceles triangular frames with one side forming a right angle are placed vertically at a predetermined distance. , each corresponding vertex is connected. Folded in half by the above half-folding device The film 3 is folded inward from above and below at the oblique side of the mouth opening device 6, so that the cross section becomes The shape is U-shaped, and the direction is changed by 90 degrees to feed in the same direction as the transport direction of the packaged article 7. will be done.

[0026] On the other hand, the belt controller passes through the inside of the opening device 6 and moves in the direction of transport of the article to be packaged 8. A conveyor is inserted, and the articles 8 to be packaged are conveyed to the opening device 6 by the belt conveyor 7. The film 3 is transferred through the inside of the film 3, which has a substantially U-shaped cross section.

[0027] The film 3 into which the article to be packaged 8 has been inserted opens the peripheral opening of the article 8 into an L (not shown). The packaging is completed by sealing with a mold sealing device.

[0028] In the above embodiment, both the first and second guide members 1 and 2 are plate-shaped members. However, it does not necessarily have to be in the form of a plate; for example, rod material, rollers, etc. can be used alone or in a plate shape. It is possible to have a combination including the body, and the second guide member 2 may have an inclined It is also possible to leave the guide part 2-1 and eliminate other unnecessary parts. Furthermore, the 2. The rotating direction of the guide member 2 is not limited to the vertical direction as in the above embodiment, but may also be For example, it can also be rotated horizontally.

[0029] Further, the automatic packaging device is not limited to the above embodiment, and various modifications can be made.

[0030]

[Effect of the idea]

As is clear from the above explanation, according to the automatic packaging machine of the present invention, the film can be folded in half. The device has a simple structure, requires an extremely small footprint, and can be directly connected to automatic packaging equipment. It became possible to use long films and achieve full automation. At the same time, static electricity generated by winding the half-folded film, adhesiveness, etc. In addition to avoiding various obstacles, the presence of the film separation member makes it easier to separate half-folded films. Even at the direction change section, adhesion between the upper and lower films is prevented while the next process, packaging, is carried out. Since it is introduced at performance is significantly improved. Further, according to the present invention, the second guide member is particularly provided with its inclined guide portion. Since it is rotatable in the direction away from the first guide member around the lower end, The operation for setting the film on both guide members becomes extremely easy.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a fully automatic packaging machine showing a typical embodiment of the present invention.

FIG. 2 is a structural diagram showing the half-folding device of the same machine.

FIG. 3 is a perspective view showing one shape of a first guide member and a second guide member of the device.

FIG. 4 is an explanatory diagram showing how a film is half-folded by the same device.

[Explanation of symbols]

1 First guide member 1-1 Horizontal guide section 1-2 Inclined guide part 1-3 Bent part 2 Second guide member 2-1 Inclined guide section 2-2 Vertex 2-3 Shaft part 3 Film 4 rolls 5 Guide roller 6 Mouth opening device 7 Belt conveyor 8 Articles to be packaged 9 Film separation plate (film separation member)

Claims (1)

[Scope of utility model registration request] 1. A half-folding device that continuously folds a long packaging material made of a film, a synthetic resin laminate, etc. in half in the longitudinal direction and supplies it to the next process, and a packaging material supplied from the half-folding device. is turned upside down while being opened, the cross section is made into a substantially U-shape, and the packaging material is fed in a direction perpendicular to the supply direction, and while being fed, the article to be packaged is carried into the opening, and then the opening of the packaging material is closed. In a continuous packaging machine connected to a packaging device, the half-folding device is disposed adjacent to a half-folding packaging material supply section of the packaging device, and is installed horizontally in parallel to the half-folding packaging material supplying section. a support part for the wrapping roll of packaging material; a horizontal guide part disposed above the wrapping roll and parallel to the roll axis and having a length of approximately half the width of the packaging material; and a horizontal guide part connected to one end thereof at an angle of approximately 45 degrees. a first guide member comprising an inclined guide part having a downward slope; and a first guide member disposed close to the front surface of the first guide member in the packaging material supply direction, from at least an upper end of the inclined guide part to a free end of the horizontal guide part. a second guide member comprising an inclined guide portion having a downward slope of approximately 45 degrees; a second guide member disposed below the inclined guide portion of the second guide member and parallel to the winding roll axis; The inclined guide part of the second guide member is rotatable about its lower end in a direction away from the guide position, and the inclined guide part of the second guide member is rotatable in a direction away from the guide position. A film separating member installed close to the lower circumferential surface, extending in a film supply path between at least the guide roll and the packaging device, and interposed in an opening of a half-folded film to be supplied to the packaging device. 1. A continuous packaging machine for strip-shaped packaging materials such as half-folded film, characterized by comprising: