JP2012240737A - Horizontal bag-making/filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal bag-making/filling machine, capable of providing a package maintaining a state in which front and rear edge portions are bent with a simple structure.SOLUTION: Habit giving means 26 are provided respectively on the upstream side and downstream side of opposed sealing surfaces of a pair of seal bodies 12, 14. A rear edge folding body 30 is disposed on the downstream side of the second seal body 14 so as to be vertically movable. A front edge folding body 34 is disposed on a carry-out conveyor 20 so as to be vertically movable. A cylindrical film F is horizontally sealed and cut by the pair of seal bodies 12, 14, and edge portions 16d extending outward from an article storage portion 16b are formed. Folding lines are given to the nipping positions of the cylindrical film F by the habit giving means 26. The front and rear edge folding bodies 30, 34 are moved from a standby position to an operating position, whereby the front and rear edge portions 16d, 16d are bent to the upper side based on portions of the folding lines by the edge folding bodies 30, 34 respectively.

Description

  The present invention relates to a horizontal bag making and filling machine that can bend the front and rear ears of a packaged product.

  In a horizontal bag making and filling machine that manufactures a package by laterally sealing and cutting the film at the front and back positions of articles supplied at predetermined intervals in the cylindrical film, the horizontal seal is used as a measure to make it easier to pack the package. A lateral seal portion (ear portion) extending outward from an article accommodating portion in a package body that has been cut and separated from a subsequent unwrapped body is bent (for example, see Patent Document 1). . In the horizontal bag making and filling machine of Patent Document 1, when a cylindrical film supplied with an article is horizontally sealed and cut with a rotating body corresponding to a rotating sealer, a crease is attached to the ear portion, and the downstream side from the rotating body is provided. By folding the rear ear of the package at the transported position and further folding the front ear of the package at the transported downstream position, a package with the front and rear ears folded is obtained. I am doing so.

Japanese Utility Model Publication No. 55-173402

  In the horizontal bag making and filling machine of Patent Document 1, since the rear ear portion and the front ear portion are separately bent at positions separated from each other, the packaging body is moved back and forth in the transport direction when each ear portion is bent. It is necessary to separately provide a member for restricting movement, and there is a difficulty that the configuration becomes complicated. In addition, since the folding position of each ear is separated from the lateral seal position, the temperature of the portion of the fold formed by heating by the rotating body is lowered until the package reaches the folding position of the ear. Resulting in. That is, the part of the crease that has been softened by heating regains the initial restoring force (elasticity) of the film itself due to the temperature drop, and even if the ear part is bent from the part of the crease, it returns to its original shape by the restoring force. There is a risk that. In particular, a thick and thin film or a strong film laminated with an aluminum foil layer has a high restoring force when folded, and therefore, there is a high possibility that bending of the ear portion is insufficient.

  That is, the present invention has been proposed in order to solve this problem in view of the above-mentioned problems inherent in the conventional horizontal bag making and filling machine, and the front and rear ears are bent with a simple configuration. It is an object of the present invention to provide a horizontal bag making and filling machine capable of obtaining a package that maintains a state.

In order to overcome the above-mentioned problems and achieve the intended object, a horizontal bag making and filling machine according to the invention of claim 1 is provided:
A pair of seal bodies that move vertically opposite to each other to obtain a package by performing transverse sealing and cutting on the tubular film before and after in the conveyance direction of the article in the tubular film,
When the side seal is applied with the seal body to form the ear portion before and after the package body, a brazing means for giving a crease to the ear portion;
A pair of ear folds that move up and down to appear at the operating position in the transport path of the tubular film at two locations on the downstream side of the pair of seal bodies, and
The pair of ear folds are folded in contact with the front and rear ears of the package immediately after the seal appears at a predetermined timing from when the pair of seal bodies releases the film to the farthest distance. It is characterized by being configured to be bent from the ridge.

In the invention according to claim 2, the pair of seal bodies are configured to move to the upstream side after being separated from each other after moving to the downstream side in a state of sandwiching the tubular film,
A rear ear folding body that abuts on the rear ear portion of the package is configured so that both seal bodies appear at the operating position immediately after releasing the film and move downstream.

  In the invention according to claim 3, the cylindrical film has a vertical seal portion formed on the upper surface side, and the front and rear ear folds are projected and lowered from the lower side to bend the front and rear ear portions upward. It is characterized by comprising.

  The invention according to claim 4 is characterized in that the distance between the pair of ear folds is adjustable.

  The invention according to claim 5 is characterized in that the timing at which the pair of ear folds appear in the conveyance path is variable.

According to the first aspect of the present invention, the front and rear ear portions are configured to be bent while the pair of ear folding bodies are in contact with each other. Therefore, the member that restricts the package from moving back and forth when the ear portions are bent is provided. There is no need to provide it separately, and the configuration can be simplified. Also, before the ears heated and softened by the sealing body regain their initial restoring force, the ears can be folded with the crease portion as a base point, and the front and rear ears are kept folded. A package is obtained. That is, even when a firm material is used as the film, it is possible to manufacture a package that maintains the state in which the ear portion is securely bent.
According to the second aspect of the present invention, the ear part folded by the rear ear folding body immediately after the heating of the film by the seal body can be held in a folded state until the temperature is lowered, and the ear part is bent. The state is reliably maintained.
According to the invention which concerns on Claim 3, since an ear | edge part is bend | folded to the surface side in which the vertical seal part in the package was formed, the appearance of the opposite surface side can be made favorable.
According to the invention which concerns on Claim 4, it can respond easily to the size change of a package.
According to the invention which concerns on Claim 5, according to the difference in the length of the front-and-rear ear | edge part, each ear | edge part can be bent at the optimal timing.

(a) is a principal part schematic side view of the horizontal bag-making filling machine which concerns on an Example, (b) is an enlarged view of A part in (a). BRIEF DESCRIPTION OF THE DRAWINGS It is a principal part schematic side view of the horizontal bag-making filling machine which concerns on an Example, (a) shows the state which a pair of sealing body meshes | engages and performs a horizontal seal | sticker to a cylindrical film, (b) is a front-and-rear ear | edge. The state which bent the ear | edge part by the folding body is shown, (c) has expanded and shown the site | part by which an ear | edge part is bent by an ear | edge folding body. It is a schematic perspective view which shows the package obtained with the horizontal bag-making filling machine which concerns on an Example.

  Next, a preferred embodiment of the horizontal bag making and filling machine according to the present invention will be described below with reference to the accompanying drawings. In addition, in an Example, upstream and downstream are designated by the relationship with the conveyance direction of the articles | goods W and the cylindrical film F which are conveyed by the conveyance conveyor 18 and the carrying-out conveyor 20. FIG.

  The horizontal bag making and filling machine continuously feeds a cylindrical film F in the longitudinal direction of a cylindrical film F formed in a cylindrical shape by bag making means by a vertical sealing mechanism, while the cylindrical film F is fed by a feeding means. F is conveyed toward the downstream side. Further, the articles W are supplied into the tubular film F formed by the bag making means at predetermined intervals by the supply means, and the articles W in the tubular film F are laterally disposed in front (downstream side) and rear (upstream side) of the article W. The packaging body 16 is obtained by transverse sealing and cutting with a pair of upper and lower sealing bodies 12, 14 as lateral sealing means in the sealing mechanism 10. Note that the bag making means, the vertical seal mechanism, the feeding means, and the supplying means are not shown. In the embodiment, the belt-like film is supplied to the bag making means from the lower side than the feeding line of the article W, and both end portions in the width direction of the belt-like film are polymerized in a palm shape above the feeding line (upper side surface of the article W), A vertical seal 16a appears on the upper surface (one surface) of the package 16 (see FIG. 3).

  As shown in FIG. 1 (a), a transport conveyor 18 is disposed on the upstream side with the horizontal seal mechanism 10 interposed therebetween, and a transport conveyor 18 having a transport level matching that of the transport conveyor 18 is arranged in series on the downstream side. Arranged. In the horizontal sealing mechanism 10, the first seal body 12 and the second seal body 14 are disposed vertically opposite to each other across the conveyance path of the tubular film F between the conveyance conveyor 18 and the carry-out conveyor 20. Both seal bodies 12 and 14 are configured to relatively move toward and away from each other by a known first operating mechanism (none of which is shown) operated by the first driving means. Then, both the sealing bodies 12 and 14 approach each other and sandwich (engage) the tubular film F for a required time, so that a lateral seal is applied in the width direction intersecting the transport direction of the film F.

  The pair of seal bodies 12 and 14 are configured to move forward and backward along the film transport direction by a known second operating mechanism (both not shown) that is operated by the second driving means. Then, by operating the first operating mechanism and the second operating mechanism in synchronization, the pair of seal bodies 12 and 14 approach each other from the position farthest from the cylindrical film F on the upstream side, and the cylindrical film F A so-called box motion operation is repeated in which one cycle is the operation of moving horizontally toward the downstream side by a required distance while holding the frame, moving away from each other, moving toward the upstream side, and returning to the original position. . The movement trajectory of the upper and lower seal bodies 12, 14 in one cycle is substantially elliptical, and both the seal bodies 12, 14 move downstream by a predetermined distance while being separated from each other. Is returned to the upstream side from the time when it is separated by about one half of the most separated distance. In addition, a cutter (not shown) disposed at a central position in the front-rear direction of one seal body 12 operates at a required timing from the time when the tubular film F is sandwiched between the seal bodies 12 and 14 to the separation. Then, the tube film F is cut in a direction (width direction) crossing the tubular film F. The package 16 obtained in this way has ears 16d formed on both the front and rear sides of the article accommodating portion 16b that accommodates the article W. Each ear portion 16d is formed with a fold 16e formed by brazing means 26, 26, which will be described later, and a lateral seal portion 16c is formed outward from the fold 16e.

  As shown in FIG. 1 (b), the upper and lower sides of the seal bodies 12 and 14 sandwiching the opposed seal surfaces sandwich the upper and lower concave and convex portions. The attaching means 26 are provided respectively, and the width dimension of both the attaching means 26 and 26 is set longer than the width dimension of the tubular film F. Both the brazing means 26 and 26 are heated together with the seal bodies 12 and 14, and when the seal bodies 12 and 14 sandwich the portion between the articles W and W accommodated in the tubular film F, A transverse crease 16e along the lateral seal portion 16c is provided over the entire length in the width direction while sandwiching the space between the article accommodating portions 16b (between the articles W and W) on the upstream side and the downstream side of the seal position. It is configured as follows.

  The conveyance conveyor 18 and the carry-out conveyor 20 are configured so that the conveyance downstream end of the conveyance conveyor 18 and the conveyance upstream end of the carry-out conveyor 20 move back and forth in the conveyance direction and change the conveyance distance even during the conveyance of the article W. It comprises a conveyor having a well-known slide mechanism that moves a part of the roller around which the endless belt 22 is wound together with a part of a frame (not shown). The carrying speed of the carry-out conveyor 20 is higher than the carrying speed of the carry conveyor 18. Is also set to be fast.

  The transport downstream end of the transport conveyor 18 and the transport upstream end of the carry-out conveyor 20 are connected to the lateral seal mechanism 10 via a guide cam mechanism 24, so that the lower second seal in the lateral seal mechanism 10 is provided. A known opening / closing mechanism is employed so as to reciprocate in the conveying direction in synchronization with the body 14 and to separate and approach in accordance with the vertical movement of the second seal body 14. The opening / closing mechanism of the present embodiment is accommodated in the tubular film F with the transport downstream end of the transport conveyor 18 close to the transport upstream end of the carry-out conveyor 20 in a state where the second seal body 14 is positioned at the lowest point. The articles W being transferred between the opposing portions of the conveyors 18 and 20 are satisfactorily delivered, and the second seal body 14 is linked to the upward movement of the second seal body 14 so that the downstream end of the transport is separated from the upstream end of the transport. A gap that allows the body 14 to move upward is formed between the opposing portions of the conveyors 18 and 20.

  As shown in FIG. 1A, a rear ear fold 30 connected to a first cylinder 28 such as an air cylinder is disposed downstream of the second seal body 14. The rear-ear folded body 30 waits below the conveyance surface of the carry-out conveyor 20 (outside the conveyance path of the tubular film F) by the first cylinder 28 in the gap between the second seal body 14 and the conveyance upstream end of the carry-out conveyor 20. It is configured to move up and down between the position and the operation position that protrudes upward from the conveyance surface and appears in the conveyance path (see FIGS. 2A and 2B). The rear ear folding body 30 is arranged so as to be able to move up and down in the immediate vicinity of the downstream (front) side surface of the second seal body 14 and is configured to move in the transport direction together with the second seal body 14. Yes. Further, the rear-ear folded body 30 is made of metal and is formed in a flat plate shape having a width that is longer than the width of the tubular film F. When the rear-ear folded body 30 is moved from the standby position to the operating position, The ear portion 16d is bent upward so as to be in contact with the ear portion 16d on the upstream side over the entire length in the width direction.

  As shown in FIG. 1 (a), the carry-out conveyor 20 is provided with a plurality of interval adjusting rollers 32 around which the endless belt 22 is wound, and a front cylinder 28 and a second cylinder 36 such as an air cylinder. An adjustment unit 38 is provided. The interval adjusting roller 32 can be moved together with a part of a frame (not shown) in the conveying direction by the above-described slide mechanism, and the endless belt 22 is wound around the conveying surface of the carry-out conveyor 20 with the endless belt 22 wound around. A space S1 that does not hinder conveyance is defined, and an accommodation space S2 that communicates with the space S1 and has a concave shape downward is defined by the endless belt 22. The second cylinder 36 is disposed in the accommodation space S <b> 2, and the front ear folding body 34 is connected to the second cylinder 36. Then, the front ear folded body 34 is transported by projecting above the standby position and the transport surface below the transport surface of the carry-out conveyor 20 (outside the transport path of the tubular film F) by the second cylinder 36 in the space S1. It is configured to move up and down between the operating positions appearing on the road (see FIGS. 2A and 2B). Further, the front ear folded body 34 is made of metal and is formed in a flat plate shape having a width dimension longer than the width dimension of the tubular film F, and when moving from the standby position to the operating position, the front side of the package body 16 (downstream in the transport direction) The ear portion 16d is bent upward so as to be in contact with the entire ear portion 16d in the width direction.

  As shown in FIGS. 2B and 2C, the distance between the rear ear folded body 30 and the front ear folded body 34 is such that the rear ear folded body 30 is in contact with the rear ear portion 16d and bent upward. In such a state, the length is set such that the front ear folded body 34 can be brought into contact with the front ear portion 16d and bent upward. In the embodiment, the distance between the front and rear folds 16e and 16e formed on the front and rear ears 16d and 16d of the package 16 is set slightly larger. The adjusting unit 38 is configured to move and adjust back and forth along the conveying direction with respect to the conveyor frame so as to be positioned and held, and the positional relationship between the space S1 and the front ear folding body 34 is maintained. The distance from the rear ear fold 30 can be adjusted.

  Above the carry-out conveyor 20, a pressing member 40 that moves in the conveyance direction integrally with the conveyance upstream end of the carry-out conveyor 20 is disposed. The presser member 40 is connected to a third cylinder 42 such as an air cylinder, and the third cylinder 42 is in a standby state in which the lower surface is spaced above the transport position of the transport film of the carry-out conveyor 20 and the transport path of the tubular film F. Configured to move up and down between positions. The holding member 40 is an elastically deformable material such as sponge or soft synthetic resin and has a shape corresponding to the shape of the package 16 such as a block shape, and is placed on the conveying surface of the carry-out conveyor 20 at the operating position. It is comprised so that W can be lightly pressed from the upper side with the cylindrical film F. FIG.

  Next, the operation of the horizontal bag making and filling machine according to the above-described embodiment will be described.

  The cylindrical film F in which the articles W are accommodated at predetermined intervals is placed on the transport conveyor 18 and transported toward the horizontal seal mechanism 10. In the process in which the pair of seal bodies 12 and 14 approach from a position where they are separated from each other, after the article W accommodated in the tubular film F passes through the facing portion between the transport conveyor 18 and the carry-out conveyor 20, the opening and closing mechanism As a result, the opposing ends of the transport conveyor 18 and the carry-out conveyor 20 are separated from each other, and a gap that allows the second seal body 14 to move upward is defined.

  At a timing before the pair of seal bodies 12 and 14 sandwich the cylindrical film F, the pressing member 40 is moved from the standby position to the operating position by the third cylinder 42, and the pressing member 40 causes the article W to be cylindrical. Along with the film F, it is lightly pressed against the transport surface of the carry-out conveyor 20 from above (see FIG. 2 (a)). Thereafter, the pair of seal bodies 12 and 14 sandwich the article W between the tubular film F. Further, the brazing means 26, 26 provided on the seal bodies 12, 14 and heated are the article storage portions on the upstream side and the downstream side of the sandwiching position (lateral seal position) by the seal bodies 12, 14 in the tubular film F. 16b (see FIG. 1B). When the cylindrical film F is sandwiched between the pair of seal bodies 12 and 14, the article W is pressed against the transport surface by the pressing member 40 as shown in FIG. Due to the force pulled upstream by the seal bodies 12 and 14, misalignment or the like of the article W caused by lifting or the like ahead of the article W is prevented. At the timing after the pair of seal bodies 12 and 14 sandwich the tubular film F, the pressing member 40 is moved from the operating position to the standby position by the third cylinder 42 to release the article W.

  While the pair of seal bodies 12 and 14 are moving substantially horizontally with the tubular film F by a required distance while being sandwiched, a lateral seal portion 16c is formed in the tubular film F and cut by the cutter. Thus, an ear portion 16d extending outward from the article accommodating portion 16b is formed. Further, linear folding folds 16e are respectively provided across the width direction at the clamping positions of the cylindrical film F by the clamping means 26, 26.

  When the pair of seal bodies 12 and 14 move away from each other to release the tubular film F and the pressing member 40 starts to move toward the standby position, the package body 16 that has been laterally sealed and cut is provided. Is reliably separated from the subsequent unwrapped product by the carry-out conveyor 20 operating at high speed (see FIG. 2 (b)), and both seal bodies that continue to move downstream while moving away from each other. Advance faster than 12,14. As the packaging body 16 moves forward by a predetermined distance toward the downstream side, the presser member 40 is moved again at an appropriate timing determined in relation to the position where the rear ear folding body 30 is positioned and set in advance. The first cylinder 28 and the second cylinder 36 are energized at the same time as the package 16 is pressed to the transport surface of the carry-out conveyor 20 for a predetermined time, and the rear ear folding body 30 and the front ear The folding body 34 moves from the standby position to the operating position almost simultaneously. As a result, the front ends of the ear folding bodies 30 and 34 corresponding to the front and rear ear portions 16d and 16d of the package 16 abut on the front end side (side away from the article storage portion 16b) from the folding ridges 16e and 16e. The ears 16d and 16d are bent upwards where the vertical seal portion 16a is located with the folding ridges 16e and 16e as the base point in consideration of the appearance of the package 16 after finishing (see FIG. 2 (c)). ). Since the portions of the folding folds 16e are heated and softened by the brazing means 26 and 26 that are rising in temperature together with the seal bodies 12 and 14, they are easily bent by the corresponding ear folds 30 and 34. In addition, in the state where the ear portion 16d is bent, the folding heel 16e is cooled by the metal ear folds 30 and 34 which are in contact with the ear portion 16d, so that the bent state is reliably maintained. The

  In addition, the seal bodies 12 and 14 cut off the package body 16, and at least the ear folding bodies 30 and 34 are brought into contact with the front and rear ear portions 16d and 16d of the package body 16 until the seal bodies 12 and 14 are most separated. In this case, since the softened state continues, it can be bent by the ear folds 30 and 34. In this embodiment, the ear folds 30, 34 are at an early timing (immediately after the seal bodies 12, 14 release the film) after the seal bodies 12, 14 have separated the packaging body 16 and moved forward by a predetermined distance. Is in contact with the ears 16d and 16d of the package 16 immediately after sealing, and the ear folding bodies 30 and 34 are continuously conveyed until the sealing bodies 12 and 14 are separated by about one half of the distance between them. The ears 16d and 16d can be easily bent by appearing in contact with the ears 16d and 16d. That is, the front and rear ear portions 16d, 16d are formed in portions of the folds 16e, 16e before the temperature of the folds 16e, 16e heated by the brazing means 26, 26 decreases and the initial restoring force returns. Therefore, the ears 16d and 16d released from the ear folds 30 and 34 are prevented from returning to the original state by the restoring force, and the front and rear ears 16d and 16d are maintained in the folded state. 3 can be obtained with certainty. Therefore, even when a firm material is used as the film, the bent state of the ears 16d and 16d in the package 16 can be maintained. Further, the front and rear ear folding bodies 30 and 34 are moved integrally with the seal bodies 12 and 14 to the downstream side in the conveying direction while holding the ear portions 16d and 16d in a bent state from the operating position. During this time, the temperature of the folding folds 16e, 16e is lowered, so that the bent portions 16d, 16d can be reliably maintained in the bent state, and continuous packaging can be performed without stopping the conveyance of the packaging body 16.

  When the corresponding ear portions 16d and 16d are bent upward by the front and rear ear folding bodies 30 and 34, the cylindrical film F together with the article W is transported by the holding member 40 as shown in FIG. Therefore, only the ears 16d and 16d can be pushed up and bent reliably without lifting the article storage portion 16b.

  The horizontal bag making and filling machine according to the embodiment has a corresponding ear portion 16d, in a state where the packaging body 16 is sandwiched from the front and rear by a pair of ear folding bodies 30, 34 at a position close to the downstream side of the seal bodies 12, 14. Since 16d is bent, it is possible to restrict the movement of the packaging body 16 before or after the conveyance direction when the ear 16d is bent by the ear folding bodies 30 and 34, and the ear 16d can be reliably bent. That is, it is not necessary to provide a dedicated member for restricting the package 16 from moving back and forth in the transport direction, and the configuration can be simplified.

  Since the front-ear folding body 34 is configured so that the distance from the rear-ear folding body 30 can be adjusted by the adjustment unit 38, the adjustment unit 38 is moved and adjusted when the front and rear size of the article W is changed. Thus, the ear folds 30 and 34 can be brought into contact with the front and rear ears 16d and 16d of the package 16 at appropriate positions where the folding folds 16e and 16e can be bent. In addition, since the rear-ear folding body 30 and the front-ear folding body 34 of the embodiment are configured to be operated by independent cylinders 28 and 36, the respective ear folding bodies 30 and 34 are moved to operating positions at different timings. Can be made. For example, when the lengths of the front and rear ear portions 16d and 16d are different, it is possible to easily cope with the case where the front or rear ear portion 16d is bent in advance.

(Example of change)
The present invention is not limited to the configuration of the embodiment, and can be modified as follows, for example.
(1) The moving mechanism can be configured to operate both the approaching / separating movement of the pair of seal bodies 12 and 14 and the movement along the conveying direction by a single driving means. When operating with a single driving means, a planetary gear mechanism or the like is used as an operating mechanism for the pair of seal bodies 12 and 14, so that the movement trajectory of the pair of seal bodies 12 and 14 can be changed to various shapes such as a substantially rectangular shape. It can be a trajectory.
(2) A lateral seal mechanism or the like of a type that moves up and down at a fixed position when the tubular film F is intermittently stopped without moving the pair of seal bodies 12 and 14 in the transport direction. In this case, the rear ear folded body 30 may be moved forward and backward in the transport direction independently of the seal bodies 12 and 14 by another driving means.
(3) A configuration in which the front and rear ear folding bodies 30 and 34 are advanced and retracted from the upper side of the carry-out conveyor 20 can be adopted. Further, as a driving means for the ear folds 30 and 34, a means combining a motor and a rack and pinion mechanism, a link mechanism or the like can be adopted. It should be noted that the front and rear ear folds 30 and 34 can be configured to operate with a single driving means.
(4) A configuration in which the rear ear folding body 30 is disposed on the carry-out conveyor 20 so as not to interfere with the seal bodies 12 and 14 may be employed. In this case, in addition to the configuration in which the rear ear folding body 30 is disposed at a portion of the carry-out conveyor 20 that moves integrally with the transport upstream end, the rear ear folding body 30 is moved forward and backward in the transport direction by another driving means. It may be.
(5) The thickness, material, shape, etc. of the front and rear ear folds 30, 34 can be arbitrarily changed. For example, the tip that comes into contact with the film is tapered or arcuate, and is optimal depending on the material of the film to be folded. Should be adopted.
(6) The adjustment unit 38 is not limited to a configuration in which the position is adjusted by manual operation, and may be an automatic adjustment form using a driving means such as a motor.
(7) Various types of conveyors such as a roller conveyor and a push conveyor can be adopted as the conveyor before and after the horizontal seal mechanism 10 is sandwiched.
(8) A horizontal bag making and filling machine in which the vertical seal portion 16a appears on the lower side surface of the packaging body 16 may be used, and in such a form that the vertical seal portion 16a appears on the lower side surface of the packaging body 16, By adopting a configuration in which 16d and 16d are bent downward by the ear folding bodies 30 and 34 provided on the upper side of the carry-out conveyor 20, the ear folding bodies 30 and 34 are formed on the ear portions 16d and 16d as necessary. The process of pressing the package 16 with the pressing member 40 when abutting can be omitted, and the appearance of one surface of the package 16 can be made good. In addition, the form which bends the ear | edge parts 16d and 16d to the opposite side to the surface where the vertical seal | sticker part 16a appears can also be employ | adopted.
(9) As the pressing member 40, a contact portion may move as the packaging body 16 is conveyed, such as a belt conveyor.
(10) The horizontal bag making and filling machine of the embodiment is suitable when using a firm material as a film, but it can of course be used when using a soft material.
The configuration described in the embodiment is not limited to the above-described modification example, and various other configurations can be adopted without departing from the gist of the present invention.

12 first seal body (seal body), 14 second seal body (seal body), 16 packaging body 16a longitudinal seal portion, 16b article storage portion, 16c lateral seal portion, 16d ear portion 16e folding fold, 26 brazing means, 30 Rear ear fold (ear fold)
34 Folded forearm (ear fold), F tubular film, W article

Claims (5)

A pair of seal bodies that move oppositely in the vertical direction and laterally seal and cut the tubular film (F) before and after the article (W) in the conveying direction of the tubular film (F) to obtain a package (16) ( 12,14)
A brazing that gives a crease (16e) to the ear (16d) when a lateral seal is applied by the seal body (12, 14) to form an ear (16d) before and after the package (16). Means (26);
A pair of folded ears (30, 34) that move up and down so as to appear at the operating position in the conveyance path of the tubular film (F) at two positions on the downstream side of the pair of seal bodies (12, 14); With
The pair of ear folds (30, 34) appear at the operating position at a predetermined timing from when the pair of seal bodies (12, 14) release the film (F) to the farthest position and immediately after the seal. A horizontal bag making and filling machine configured to abut on the front and rear ears (16d, 16d) of the package (16) and bend from the crease (16e). The pair of seal bodies (12, 14) are configured to move to the upstream side after moving away from each other after moving to the downstream side while sandwiching the tubular film (F),
The rear ear fold (30) that abuts the rear ear (16d) of the package (16) appears at the operating position immediately after both seal bodies (12, 14) release the film, and is downstream. The horizontal bag making and filling machine according to claim 1, which is configured to move to the side.   The cylindrical film (F) is formed with a vertical seal portion (16a) on the upper surface side, and the front and rear ear folds (30, 34) are projected and retracted from the lower side in the transport path to the front and rear ear portions (16d). , 16d) is configured to bend upward, the horizontal bag making and filling machine according to claim 1 or 2.   The horizontal bag making and filling machine according to any one of claims 1 to 3, wherein an interval between the pair of folded ears (30, 34) is adjustable.   The horizontal bag making and filling machine according to any one of claims 1 to 4, wherein a timing at which the pair of ear folded bodies (30, 34) appears in the conveyance path is variable.

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