JP2005067644A - Method and device for bagging and sealing packaged object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging body in which an object 1 to be packaged is constantly sealed at a predetermined position in a bag 2 in a bagging and sealing method in which the object 1 is placed in the bag 2 with an upper portion opened, the bag 2 is evacuated, and the upper opening part of the bag 2 is sealed. <P>SOLUTION: A display mark 33 is provided on a predetermined part of the object 1, and an identification mark 28 is provided on a predetermined part of a surface of the bag 2. After the object 1 is placed in the bag 2, the deviation (a) in position between the display mark and the confirmation mark is detected, a holding member 45 of a position correction device 31 is inserted in the bag 2 to hold the object 1, and the holding member 45 is vertically moved based on the detected deviation (a). The object 1 is moved to the position at which the display mark is agreed with the confirmation mark, and the position is corrected. The position-corrected object 1 is held by the holding member 11 from the outside of the bag 2 to hold the object 1 at the position, and the bag 2 is evacuated by a nozzle 52 in the held condition at the position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a bagging and sealing method and a bagging and sealing device for inserting an article to be packaged in a bag, degassing the inside of the bag, and subsequently sealing and sealing the bag mouth of the bag.

  When the packaged item is deteriorated due to oxidation or the like, as described in Patent Document 1 below, a packaging material having a high gas barrier property is used as the bag, and the bag is deoxygenated together with the packaged item. It is known that an oxygen agent and an oxygen detector are charged, and an inert gas such as nitrogen gas is sealed in the bag for sealing. Here, the oxygen detecting agent is, for example, Ageless Eye (trade name) manufactured by Mitsubishi Gas Chemical Co., Ltd., and changes color by reacting with oxygen, for example, a pinhole or the like is opened in the bag and the sealing performance of the bag is impaired. It is possible to know visually. Further, the oxygen scavenger is, for example, AGELESS (trade name) manufactured by Mitsubishi Gas Chemical Co., Ltd., which reacts with oxygen remaining in the bag after enclosing, so that the oxygen concentration in the bag is equal to or lower than the color change region concentration of the oxygen detector. Has the effect of keeping

  According to this method, it is possible to visually know from outside the defective product in which the sealing of the bag is impaired, but (a) the discoloration of the oxygen detecting agent when the sealing is impaired is not sensitive and can be distinguished. (B) It may be difficult to control the charging position of the small oxygen detector, and the position of the oxygen detector may not be immediately grasped from the outside of the bag. (C) between the oxygen scavenger and the oxygen detector Product cost increases by the amount of cost. (D) A process and a charging device for charging each of the oxygen scavenger and oxygen detector are required separately, which not only increases the equipment cost but also increases the size of the equipment. -There were inconveniences such as inevitable complexity and poor cleaning and maintenance.

  In Patent Document 2 below, a pinhole detector (for example, an elastic object filled with gas) that returns to its original size when the inside of the bag returns to atmospheric pressure is inserted into a predetermined position in the bag, It is described that the inside is deaerated and sealed. In the case of this pinhole detector, since the pinhole is opened and the sealing of the bag is impaired, and the outside air enters the bag, the pinhole detector is contracted, so that the occurrence of the pinhole can be detected. However, even in this method, the problems described in the above (a) to (d) still remain.

In Patent Document 3 below, a confirmation mark is provided at a predetermined position on the bag surface of the bag by printing or the like, and a pinhole generation display small object (a disk-shaped small object) is inserted at a position overlapping the confirmation mark. The bag is deaerated and sealed. As long as the sealing of the bag is not impaired, the pinhole occurrence display small object will not be displaced from the position of the confirmation mark on the bag, but if the pinhole is opened and the sealing of the bag is impaired, the bag and pinhole The close contact of the generation display small object is released, and the pinhole generation display small object is displaced from the position of the confirmation mark on the bag, whereby the occurrence of the pinhole can be visually recognized.
However, this method also requires a small object for pinhole generation display, and it is difficult to accurately insert a small object that is difficult to handle at a position overlapping the confirmation mark. In particular, it is extremely difficult to accurately position and insert such a small object in a bag with the opening facing upward and to deaerate while maintaining the positioning state.

JP-A-8-164185 JP 2003-65884 A Japanese Patent Laid-Open No. 2003-112767

On the other hand, instead of inserting a pinhole generation display small object, a display mark is given to the package itself (for example, by printing or the like), or a predetermined portion of the package is used as a display mark, and the display mark is a bag. Attempts were made to load the packaged items in the bag so as to overlap the confirmation mark, and to deaerate and seal in that state. According to this method, as long as the sealing property of the bag is not impaired, the display mark and the confirmation mark remain overlapped, and if the pin hole is opened in the bag and the sealing property of the bag is impaired, the packaged item is transferred to the bag. The positions of the display mark and the confirmation mark are also shifted in the vertical direction and / or the horizontal direction, thereby making it possible to visually recognize the pinhole.
This method has the advantage that it is not necessary to load an object other than the packaged item in the bag, and it is not necessary to handle a small object that is difficult to handle.

  By the way, when using this method, the packaged item in the bag must have room for positional displacement in the vertical and horizontal directions in the bag when the sealing in the bag is impaired. For this purpose, the item to be packaged in the bag is inserted in a position away from the end (bottom and both left and right sides) of the bag accommodating portion, and the display mark and the confirmation mark do not overlap at that position. Don't be. Because, for example, when the display mark and the confirmation mark overlap with the lower end of the article to be packaged attached to the bottom of the bag storage part, even if the pinhole is opened and the sealing performance of the bag is impaired As long as the bag is placed facing up and down (the bag is placed vertically with the lower end on the bottom and the upper end on the top), the package will not shift further down in the bag, As a result, the display mark and the confirmation mark do not shift and it is impossible to visually recognize that the sealing performance is impaired.

As described above, the package is always in a predetermined position in the bag under the condition that the package is loaded in a position away from the end (bottom and both left and right sides) of the bag storage portion, and the position It has been difficult to obtain a package sealed with a conventional automatic bagging method and apparatus.
The present invention solves this problem, and under the condition that the package is loaded at a position away from the end (bottom and both the left and right sides) of the bag accommodating portion, the package is always in the bag. It aims at obtaining the package sealed in the predetermined position.

According to the bag packing seal method of the package according to the present invention, a single package with a certain contour is placed in a bag having an upper opening, the inside of the bag is deaerated, and then the upper opening of the bag is opened. In the bag-sealing sealing method in which the part is sealed and sealed, after the object to be packaged is loaded into the bag, the position of the object to be packaged in the bag is corrected to a predetermined position and the bag is pressed from the outside by the holding member. The package is held in that position, and at this time, the package is in a position away from the bottom and both the left and right sides of the bag accommodating portion, and the inside of the bag is deaerated while being held.
Although it is practically difficult to always load the packaged object at a predetermined position in the bag at the time of loading the packaged object, the position of the packaged object in the bag is corrected after loading (= By adding a step of moving the article to be packaged in the bag, the article to be packaged can be accurately aligned with a predetermined position in the bag. Further, since the bag is held from the outside by the holding member to hold the package in the corrected position (predetermined position), the package is displaced in the bag before the deaeration process is completed. The target package can be obtained without any problems.
For the deaeration in the bag, known deaeration means, for example, suction using a nozzle connected to a vacuum source, press deaeration, deaeration treatment in a vacuum chamber, and combinations thereof can be used as appropriate.
Holding of the article to be packaged by the holding member can be stopped at an appropriate timing after the deaeration process is completed, but it is preferable that the opening is sealed (sealed).

  In this bagging and sealing method, it is preferable that a confirmation mark is attached to the bag surface of the bag, and that a predetermined portion of the package is aligned with the confirmation mark when correcting the position. In the package obtained in the present invention, the packaged object is always positioned and sealed in a predetermined position in the bag, so that it can be visually recognized if it is displaced, thereby confirming the occurrence of a pinhole. However, if a confirmation mark is attached to the bag surface of the bag, if there is a deviation between the confirmation mark and a predetermined portion of the package, it can be visually recognized very easily. Moreover, it is desirable that a display mark is also attached to a predetermined part of the package. If there is a difference between the bag confirmation mark and the display mark of the package, the visual recognition becomes easier.

In the above method, if necessary, the deviation between the actual position of the packaged material loaded in the bag and the predetermined position is detected, and the deviation is corrected by correcting the position based on the deviation amount. To do. This detection is unnecessary when the form of position correction is, for example, a form in which the upper end of the article to be packaged is simply pushed downward by a pushing kine that defines a lower limit position.
In the above method, the correction of the position after charging is performed in the vertical direction and / or the horizontal direction (bag width direction) as necessary, but it is generally sufficient to perform only in the vertical direction. This is because the position of the package in the bag in the left-right direction can be regulated at the time of loading using, for example, the holding member, so that accurate positioning is easy and there is little need for correction after loading.
In the above method, the holding member can be used for regulating a loading position of an article to be packaged in a bag. Prior to loading an article to be packaged in the bag, the holding member holds the bag from the outside so that the position in the left-right direction and the position in the up-down direction (in the case of the up-and-down direction do not mainly go below the predetermined position in the bag) To regulate). When the holding member is used to regulate the loading position of the packaged item, when correcting the position of the packaged item in the bag, the holding is released or the holding is loosened as necessary. To be able to move easily.

  In the bag sealing device according to the present invention, a plurality of pairs of grippers that grip and suspend both side edges of a bag move intermittently along an endless path, and supply a bag and open a bag mouth at each stop position. In a bagging and sealing device in which operations such as loading of a packaged item into a bag, deaeration within a bag, and sealing of a bag mouth are performed, the packaged item is a single package with a certain contour. A holding member that is installed in each pair of grippers and moves intermittently with the grippers, and that opens and closes and closes with the movement and holds the bag gripped by the grippers from the outside, and a filling position. It is installed at a stop position between the deaeration positions, and includes a position correction device that moves the package in the bag up and down and / or left and right and corrects the position of the package in the bag to a predetermined position. And can carry out the bagging and sealing method. It is.

In the bag filling and sealing apparatus, the correction device includes, for example, a gripping member that grips a part of an object to be packaged in the bag, and a moving mechanism that moves the gripping member in the vertical direction and / or the horizontal direction. The correction of the position after charging is performed in the vertical direction and / or the horizontal direction as needed by the correction device, but as described above, it is generally sufficient to perform only in the vertical direction. The correction device may include a push-in mechanism that holds down the upper part of the packaged item in the bag, and a moving mechanism that moves the push-in line up and down.
In the bag filling and sealing device, if necessary, a detection device for detecting a deviation between the actual position of the packaged material loaded in the bag and the predetermined position is installed, and the position correction is performed based on the deviation amount. This will eliminate the gap.

According to the present invention, it is possible to correct the position of the packaged item in the bag after charging, to accurately align the packaged item at a predetermined position in the bag, and to hold the bag from the outside by the holding member. Since the object to be packed is held in the corrected position (predetermined position), the position of the object to be packaged does not occur in the bag until the deaeration process is completed, and the object to be packaged is The package sealed in a predetermined position can be automatically obtained. If it is this package, if a pinhole is formed in a bag and sealing is impaired and a packaged object will raise | generate a position shift in a bag, it can visually recognize easily.
INDUSTRIAL APPLICABILITY The present invention can be suitably used when foods are sealed at a predetermined position in a bag, or when a bag containing liquid or solid or liquid and solid is sealed at a predetermined position in an outer bag.

Hereinafter, the bag sealing method and apparatus according to the present invention will be described in detail with reference to FIGS.
FIG. 1 shows that a packaged item 1 with a handle (food such as a bag with a gripping rod) is inserted into a bag 2, the inside of the bag is deaerated, and then the upper opening of the bag is sealed. It is a W type intermittent rotation type bag filling and sealing device for sealing. W-type means a device that handles two bags at the same time.
In this example, a mark (confirmation mark and display mark) indicating the position is attached to both the bag surface and the object to be packaged, and a package in which both marks overlap is obtained.

Around the table 3 that rotates intermittently, a pair of grippers 4 (9 pairs, one set of two pairs) gripping both side edges of the bag 2 are attached, and a holding device 5 is arranged corresponding to each pair of grippers. Has been. The gripper pair 4 is a well-known one that opens and closes at a predetermined timing (holds the bag when closed) and widens or narrows the distance between them (opening and narrowing when loaded).
As shown in FIGS. 2 and 3, each holding device 5 is installed on a frame 6 fixed to the lower surface of the table 3. The holding device 5 includes a fixed-side holding member 7 fixed to the vertical plate portion 6a of the frame 6 and a pair of movable-side holding members 11 and 11 that can be opened and closed about the fulcrum shafts 8 and 8. The holding member 7 supports the back side of the bag 2, and the movable side holding members 11, 11 can press the front side of the bag 2. The contact surface of the fixed-side holding member 7 to the bag 2 is curved in a shape along the back surface side of the bag 2 in which the article to be packaged 1 is inserted. The movable holding members 11 and 11 include an attachment arm portion 11a and a holding portion 11b fixed to the attachment arm portion 11a, and the abutment surface of the holding portion 11b on the bag 2 is loaded with the article 1 to be packaged. The bag 2 is curved in a shape along the surface side of the bag 2, and the bag 2 can be reliably held in cooperation with the contact surface of the fixed side holding member 7.

The movable holding members 11 and 11 swing between a holding state indicated by a solid line and a released (non-holding) state indicated by a virtual line in FIG. The swing mechanism includes a swing lever 13 rotatably attached to a fulcrum shaft 12 fixed to the horizontal plate portion 6 b of the frame 6, and a roller 14 rotatably attached to the lower surface of the swing lever 13. A pair of connecting rods 15 and 15 having one end rotatably attached to the swing lever 13, and swing arms 17 and 17 connected to the other end of the connecting rod 15 via a connecting piece 16. Become. The swing arm 17 is externally fitted to the fulcrum shaft 8 and is rotatable about the fulcrum shaft 8. The fulcrum shaft 8 is fixed to a bracket 18 fixed to the vertical plate portion 6 a of the frame 6. . The connecting piece 16 is fitted in the connecting rod 15 and is slidable in the axial direction, and is urged toward the tip of the connecting rod 15 by a compression spring 19. Further, a stopper 21 that contacts the swing lever 13 is fixed to the horizontal plate portion 6 b of the frame 6, and a stopper 22 that contacts the mounting arm portion 11 a of the movable side holding member 11 is fixed to the bracket 18. The positions of the stoppers 21 and 22 are freely adjustable. In addition, 23 is a spring receiving portion and 24 is a stopper of the connecting piece 16.
In the swing mechanism, the roller 14 fits in an annular groove cam (not shown) installed under the swing lever 13 so as to be substantially along the outer periphery of the table 3, and the rotation of the table 3 (that is, the holding device). 5), the movable side holding member 11 opens and closes at a predetermined timing.

In the bag filling and sealing apparatus shown in FIG. 1, operations such as bag feeding, loading of an article to be packaged, position correction, deaeration, and sealing are sequentially performed at each of the stop positions I to IX.
First, at the stop position I (bag feeding position), a bag feeding device 25 is installed on the outer peripheral side of the table 3, and two bags 2 are supplied from the bag feeding device 25 to the two pairs of grippers 4 at a time. Here, the movable side holding member 11 is open. The bag feeding device 25 shown here is a well-known magazine-type bag feeding device, and the suction bag 26 sucks and carries the leading bag 2 fed forward by the belt conveyor to the position indicated by the broken line. The member 27 is received and delivered to the gripper 4. A confirmation mark 28 is printed on the bag 2 (see FIG. 4).
The stop position II is an idle position.
At the stop position III (opening position), a pair of suction cups 29 (two pairs in total) are installed on the back side and the front side of the bag 2, and the bag mouth of the bag 2 is opened by the suction cups 29. Here, the movable side holding member 11 is closed.

At the stop position IV (loading position), a charging device (not shown) for loading the article 1 into the bag 2 is installed, and the article 1 is loaded into the two bags 2. Here, the movable side holding member 11 is closed.
As shown in FIG. 4A, if the movable side holding member 11 is not closed at this time, the article to be packaged 1 is dropped until its lower end reaches the bottom of the bag 2. However, as shown in FIG. 4B, when the movable side holding member 11 is closed and the bag 2 is pressed between the fixed side holding member 7, as shown in FIG. It slides down while contacting the inner surface of the bag 2 and is stopped halfway by the friction at that time. At the same time, the left and right positions of the article 1 are also regulated by the movable side holding member 11 and the fixed side holding member 7. That is, in this example, the movable side holding member 11 and the fixed side holding member 7 are used for regulating the loading position (vertical direction and horizontal direction) of the article 1 in the bag 2.
In order to restrict the loading position using the holding members (the movable side holding member 11 and the fixed side holding member 7), the contact surface of the holding member with the bag 2 is flexible and can be expanded and contracted freely. It is effective to attach a small member or to set the distance between the holding portion 11b of the movable side holding member 11 and the fixed side holding member 7 so as to become narrower.

At the stop position V (correction position), a position correction device 31 and a detection device 32 for correcting the position of the article 1 in the bag 2 are installed. The display mark 33 (part of a different color) is attached to the package 1, and as shown in FIG. 4C, the confirmation mark 28 of the bag 2 after charging and the display mark 33 of the package 1 are displayed. They do not overlap (displaced by a distance a in the vertical direction). The position correction device 31 moves the package 1 in the bag 2 in the vertical direction, and sets the position of the package 1 in the bag 2 at a predetermined position (the display mark 33 of the package 1 is the confirmation mark 28 of the bag 2. It has a role to correct the position where it overlaps.
As shown in FIGS. 5 and 6, the position correction device 31 includes a motor mounting member 35 fixed to the mounting plate 34, a servo motor 36 fixed to the upper portion of the motor mounting member 35, and a servo via a connecting portion 37. A screw shaft 38 connected to the rotation shaft of the motor 36, a lifting block 39 screwed to the screw shaft 38 and guided by the motor mounting member 35, and an air cylinder 41 fixed to the lower portion of the lifting block 39. And a chuck device 42 disposed below the air cylinder 41, and a lifting rod (not shown) that is connected to a driving source such as a cam and moves the mounting plate 34 up and down at a constant stroke.

The chuck device 42 includes a support block 43 fixed to the lower surface of the air cylinder 41, a fulcrum pin 44 fixed to the support block 43, and a pair of gripping members rotatably connected to the fulcrum pin 44 at the upper end. 45. The rod 46 of the air cylinder 41 extends downward, and engagement members 47 and 48 that engage with the engagement protrusions 45a of the gripping member 45 are attached to the ends thereof.
The detection device 32 includes a CCD camera (image sensor) 49 and a light source 51, thereby detecting a shift between the display mark 33 and the confirmation mark 28. The control device 52 controls the servo motor 36 based on the detection signal, The article to be packaged 1 is moved within the packaging bag 2 and the deviation is corrected. The specific procedure will be described with reference to FIG.

FIG. 7A shows a state immediately after the bag 2 stops at the stop position V, and the position correction device 31 starts to descend as the elevating rod (not shown) descends.
FIG. 7B shows a state when the lifting rod is lowered by a specified stroke. The vertical position of the gripping member 45 is adjusted before the lifting rod is lowered so that the gripping member 45 can grip a predetermined position of the package 1 (the gripping position is preferably always the same position). That is, the servo motor 36 is operated based on the detected displacement distance a, and the position of the gripping member 45 is moved in the vertical direction. In this example, the distance of deviation assumed at the time of initial setting (assuming that the distance x of deviation from the confirmation mark 28 is assumed) and the actual distance of deviation a, that is, the distance (ax) is increased. Yes. By performing this adjustment, the grip location by the grip member 45 can be kept constant. After the elevating rod is lowered, the air cylinder 41 is operated and the object to be packaged 1 is held by the holding member 45.
Subsequently, the servo motor 36 is operated, and as shown in FIG. 7C, the gripping member 45 is lowered by the distance a, thereby lowering the article 1 to be packaged within the bag 2 by the distance a. Is matched with the confirmation mark 28 of the bag 2.
Subsequently, as shown in FIG. 7 (d), at a timing after the air cylinder 41 is operated reversely to open the gripping member 45, the lifting rod (not shown) is raised and the position correction device 31 is raised. At the same time, the servo motor 36 is operated to return the position of the gripping member 45 to the initial position (position corresponding to the distance x).

In the above example, control is performed so that the gripping position is always at the same position (FIG. 7B). However, if this is not necessary (the gripping position may be slightly shifted up and down, If there is no failure, the procedure of FIG.
In the above example, the distance a between the confirmation mark 28 on the bag 2 and the display mark 33 on the package 1 is detected, and the gripping position is adjusted based on the detection signal (FIG. 7B). However, the display mark 33 of the article 1 may be directly detected, and the holding position may be adjusted based on the detection signal (position signal). In this case, there is an advantage that the bag 2 is not affected by the positional deviation of the bag 2 with respect to the gripper 4 or the printing deviation of the confirmation mark 28 of the bag 2 (in the above example, it is affected by that).
In the above example, the deviation distance a is detected by the CCD camera 49, and based on the detection signal, the servo motor 36 is operated to the extent that the deviation distance a can be eliminated, thereby raising the gripping member by the distance a. However, it is only detected that the display mark 33 and the confirmation mark 28 are misaligned until the display mark 33 detected by the CCD camera 49 wraps at the position of the confirmation mark 28 (both of the marks 28 and 33). The servo motor 36 may be operated and controlled so that the deviation amount becomes zero.

At the stop position VI (deaeration position), a nozzle deaeration device (only the nozzle 52 is shown) is installed, and the bag 2 is deaerated.
At the stop position VII (first seal position), a first seal device (only a pair of hot plates 53 is shown) is installed, and the upper opening of the bag 2 is sealed. When this stop position VII is exited, the movable holding member 11 opens.
A second sealing device (only a pair of heat plates 54 is shown) is installed at the stop position VIII (second seal position), and a cooling seal device (only a pair of cooling plates 55 is shown) at the stop position IX (discharge position). ) Is installed, and a delivery conveyor 56 is installed below it, where the gripper 4 is opened and the sealed bag 2 (packaging body) is discharged.

FIG. 8 shows another example of the position correction apparatus.
This position correction device 56 is the same as the position correction device 31 above the lifting block 39 (the same number is assigned to the same part), but a kinematic attachment block 57 is fixed to the lower part of the lifting block 39. The push-in kine 58 is fixed below.
According to this position correcting device 56, only the object to be packaged 1 can be pushed in (moved downward). The procedure of position correction is almost the same as that of the position correction device 31 (see FIG. 7), but the adjustment of the vertical position of the push-in kinematic 58 by the servomotor 36 (step of FIG. 7B) is performed by the lifting rod. When the lowering is completed, adjustment is made so that the lower end of the push-in kinematics 58 comes into contact with the upper end of the article 1 to be packaged. Alternatively, it can be adjusted so that the lower end of the push-in kine 58 is open from the upper end of the article 1 by a predetermined interval (y) when the lifting rod has been lowered. In the latter case, at the time of the next position correction (step of FIG. 7C), it is necessary to set the pushing distance of the pushing kine 58 by the servo motor 36 to the total distance (a + y) of the deviation distance a and the interval y. is there.

FIG. 9 shows another example of the position correction method.
The package 1 is a food such as a hamburger, the surface of the bag 2 is printed on the hatched portion, and the central portion is not printed with the same shape as the outline of the food inside. (Transparent portion 61). This example is to obtain a package in which the article to be packaged 1 just overlaps the transparent portion 61.
Although the display mark is not given to the package 1, in this example, the lower end of the package 1 (corresponding to a predetermined portion in the present invention) is used instead of the display mark. Moreover, the transparent part 61 (especially the lower end part of the outline) of the bag 2 is utilized as a confirmation mark.
In this example, the structure of the position correction device itself is the same as that of the position correction device 56 shown in FIG. The detection device 62 is composed of a phototube and has a light source on the opposite side of the bag 2.

This method is performed using the intermittent rotation bag filling and sealing apparatus shown in FIG. The operations performed at the stop positions I to III and VI to IX will be omitted because they are repeated so far, and only the operations performed at the stop positions IV and V will be described briefly.
At the stop position IV, the package 1 is loaded into the bag 2, and at this time, the package 1 is loaded so that the lower end of the package 1 coincides with or is located above the lower end of the contour of the transparent portion 61. There is a need to. This is because the position correction device 56 can only push the object to be packaged 1 (move downward). Such charging is possible by closing the movable side holding member 11 and holding the bag 2 between the fixed side holding member 7.

  At the stop position V, the position correction device 56 stops at the lower end position when the lifting rod (not shown) is lowered. If the detection device 62 does not detect light from the light source, it is assumed that the lower end of the package 1 has already reached the lower end of the contour of the transparent portion 61, and the control device 52 does not operate the servo motor 36. If the detection device 62 detects light from the light source, it is assumed that the lower end of the package 1 has not reached the lower end of the contour of the transparent portion 61, and the control device 52 operates the servo motor 36 to push it in. The kine 58 is lowered. Accordingly, when the detection device 62 does not detect the light from the light source, the operation of the servo motor 36 is stopped. That is, the push-in mechanism 58 is lowered until the detection device 62 no longer detects light from the light source.

  In the case where only the object to be packaged 1 is pushed (moved downward) as in the position correcting device 56, the lower end position of the lower end of the pushing kine 58 is always at a constant height, and at that time If it is set so that the confirmation mark of the bag 2 and the display mark (or a place instead of the display mark) of the package 1 match, the inside of the bag 2 can be performed without performing any detection and control based on the detection. The position of the packaged item 1 can be corrected. However, in this method, when there is a positional deviation of the bag 2 with respect to the gripper 4 or a printing deviation of the confirmation mark 28 of the bag 2, the confirmation mark of the bag 2 and the display mark of the package 1 (or the display mark) Will be slightly shifted.

  Further, in the position correction device described above, the position correction device itself is moved up and down with a certain stroke by a lifting rod, and a gripping device 42 (in the case of the position correction device 31) or a push-in kine 58 (in the case of the position correction device 56) by a servo motor. However, it is also possible to fix the motor mounting member 35 and perform all the lifting strokes of the gripping device 42 and the push-in kine 58 only by the servo motor 36.

1 is an overall perspective view of a bag sealing device according to the present invention. It is a top sectional view of a holding device in a bag filling seal device. It is the front sectional drawing. It is a figure explaining the process when charging a to-be-packaged object in a bag. It is front sectional drawing of the position correction apparatus in a bagging sealing apparatus. It is a figure explaining the control method of a position correction apparatus. It is a figure explaining the position correction method of the to-be-packaged object in a bag by a position correction apparatus. It is front sectional drawing of another position correction apparatus which concerns on this invention. It is a figure explaining another control method of the position correction device.

Explanation of symbols

1 Package
2 bags
5 Holding Device 7 Fixed Holding Member 11 Movable Holding Member 28 Confirmation Mark 31 Position Correction Device 33 Display Mark 45 Gripping Member

Claims (10)

In a bag filling and sealing method, a single packaged object having a certain contour is inserted into a bag having an open top, the inside of the bag is evacuated, and then the upper opening of the bag is sealed and sealed. After loading the packaged item inside, the position of the packaged item in the bag is corrected to a predetermined position, and the packaged item is held at that position by holding the bag from the outside by the holding member. A bag-sealing method for a packaged article, wherein the bag is degassed while being held at a position away from the bottom and both the left and right sides of the bag storage portion. A confirmation mark is attached to a predetermined position of the bag surface of the bag, and a predetermined position of the package is aligned with the confirmation mark when correcting the position. Bag sealing method. The bagging and sealing method for a packaged product according to claim 2, wherein a display mark is attached to a predetermined portion of the packaged product. The shift between the actual position of the packaged article loaded in the bag and the predetermined position is detected, and the shift is eliminated by correcting the position based on the shift amount. 3. A bag sealing seal method for an article to be packaged according to any one of 3 above. 5. The method for bagging and sealing a packaged article according to claim 1, wherein the position in the vertical direction is corrected. 6. The charging position in the bag of the packaged item is regulated by pressing the bag from the outside by the holding member before charging the packaged item in the bag. A method for sealing a packaged package. Plural pairs of grippers that grip and suspend both sides of the bag move intermittently along an endless path, and at each stop position, the bag is supplied, the bag mouth is opened, and the package is loaded in the bag. In a bagging and sealing apparatus in which operations such as entering, degassing in a bag, and sealing of a bag mouth are performed, the packaged object is a single packaged object having a certain contour, and each pair of grippers It is installed at every time, moves intermittently with the gripper, and is installed at a stop position between the filling position and the deaeration position, and a holding member that presses the bag gripped by the gripper from the outside when it opens and closes as it moves and closes A bagging and sealing device comprising a position correction device that moves a packaged object up and down or / and left and right within the bag and corrects the position of the packaged object in the bag to a predetermined position. The bag according to claim 7, wherein the correction device includes a gripping member that grips a part of an object to be packaged in the bag, and a moving mechanism that moves the gripping member up and down and / or left and right. Stuffed sealing device. 8. The bagging and sealing apparatus according to claim 7, wherein the correction device includes a pressing kine that presses an upper portion of an object to be packaged in a bag, and a moving mechanism that moves the pressing kine up and down. A detection device for detecting a deviation between the actual position of the packaged article loaded in the bag and the predetermined position is installed, and the deviation is eliminated by correcting the position based on the deviation amount. The bagging and sealing device according to any one of claims 7 to 9.

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