JP5784577B2 - Cutter detachment structure in horizontal bag making and filling machine - Google Patents

Description

  The present invention relates to a detaching structure for a cutter disposed in a horizontal sealing device in a horizontal bag making and filling machine.

  Conventionally, a film is sandwiched between a pair of sealing bodies that are vertically approached and separated from each other in front and back of an article placed at a predetermined interval in a cylindrically formed film that is conveyed in the horizontal direction. It is known that a horizontal sealing device in a horizontal bag making and filling machine that performs horizontal sealing cuts a film when the horizontal sealing is performed by a cutter arranged so as to be able to advance and retreat from a cutter receiving groove provided in the upper seal body. ing. In such a lateral seal device, it is desired to improve the maintainability such as inspection and cleaning of the cutter. When maintaining the cutter by fixing the upper seal body to the lower part of the support driven by the cutter and fixing the cutter via the cutter lifting drive unit on the upper surface side of the support and the cutter lifting drive unit, It is shown that the cutter is pulled upward from the groove of the seal body after the cutter lifting / lowering drive unit and the cutter are fixed.

JP 2012-153385 A

  However, in the horizontal sealing device of Patent Document 1, when performing maintenance such as inspection and cleaning, the cutter is carried to a good work area such as a work table located away from the horizontal bag making and filling machine. Had to work.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cutter detachment structure in a horizontal bag making and filling machine capable of satisfactorily maintaining a cutter on the spot without carrying the cutter removed from the horizontal sealing device.

In order to solve the above problems, the cutter detaching structure in the horizontal bag making and filling machine of the present invention takes the following means.
First, the invention according to claim 1 sandwiches a cylindrical film containing articles at predetermined intervals in the conveying direction of the cylindrical film with a pair of sealing bodies (32, 34) that are vertically approaching and separating from each other. Cutter detachment structure of the horizontal seal device (10) in the horizontal bag making and filling machine (1) that cuts the film with the cutter (80) arranged so that it can be horizontally sealed and moved forward and backward from the inside of the upper seal body (32) The linking means (20) moving in the vertical direction by the driving force transmitted from the driving means (26), and supporting the upper seal body (32) to the linking means (20) during the sealing. On the other hand, through the slide part (40) supported by the linkage means (20) so as to be movable in the vertical direction together with the upper seal body (32), and the cutter driving means (70) for raising and lowering the cutter (80). Cutter (80) When the bracket (60) to be held and the cutter (80) suspended from the bracket (60) are disposed toward the upper seal body (32) from above, the slide portion (40) A support part (50) that supports the bracket (60) on the upper end side and restricts the bracket (60) from dropping downward, and the bracket (60) supported by the support part (50) Positioning means (54) for guiding the cutter (80) to an appropriate position in the thickness direction, fixing means (90) for fixing the bracket (60) guided to the appropriate position to the support portion (50), A second fixing means (90) for fixing the bracket (60) upside down so that the cutter (80) faces upward is fixed to the support portion (50).

  According to the first aspect of the present invention, the horizontal bag making and filling machine (1) has the cutter (80) and the bracket (60) for supporting the cutter driving means (70). Also, a support portion that supports the bracket (60) moving from above toward the upper seal body (32) and restricts the bracket (60) from dropping downwardly on the upper end side of the slide portion (40). (50). The bracket (60) is configured to be fixed to the support portion (50) by turning the cutter (80) upside down so as to face upward. Thereby, it can be set as the cutter attachment or detachment structure in the horizontal type bag making and filling machine which can perform maintenance of a cutter satisfactorily on the spot, without carrying the cutter (80) removed from the horizontal sealing apparatus (10). Since the cutter (80), the cutter driving means (70), and the bracket (60) are integrally connected, the cutter (80) can be detached from the support portion (50). ) Workability in desorption is improved. Moreover, the support part (50) which supports a bracket (60) exists in the upper end side of a slide part (40), and the bracket (60) is comprised above it. Therefore, even if the bracket (60) is turned upside down, there is no obstacle around the cutter (80) and the cutter driving means (70), and the workability during maintenance is good. Further, since the support portion (50) and the upper seal body (32) are fixed via the slide portion (40), the cutter (80) is positioned at an appropriate position with respect to the upper seal body (32). It can be arranged. Moreover, it has a positioning means (54) which guides the bracket (60) to an appropriate position in the thickness direction of the cutter (80) in a state where the support portion (50) supports the bracket (60). Thereby, the cutter (80) can be held at an appropriate position with respect to the pair of upper and lower seal bodies (32, 34).

  Next, in the invention according to claim 2 that is dependent on claim 1, the support portion (50) includes an opening portion (52) having a size that allows the cutter driving means (70) to pass downward. Of the side surfaces forming the portion (52), the side surface (54) intersecting the thickness direction of the cutter (80) is the positioning means.

  According to the second aspect of the present invention, the support portion (50) has an opening of a size that allows the cutter driving means (70) to pass downward, in addition to the configuration for restricting the bracket (60) from dropping downward. Since the portion (52) is provided, the opening (52) of the support portion (50) can be passed while the cutter (80) and the cutter driving means (70) are connected, and the bracket (60) is turned upside down. It becomes easy to make. Further, the number of parts can be reduced by using the side surface (54) intersecting the thickness direction of the cutter (80) among the side surfaces forming the opening (52) as positioning means.

  Next, the invention according to claim 3 dependent on claim 1 or claim 2 is characterized in that a common fixing member is used for the fixing means (90) and the second fixing means (90). To do.

  According to the third aspect of the present invention, the fixing means (90) that has fixed the bracket (60) to the support portion (50) attaches the bracket (60) inverted upside down to the support portion (50). Since the second fixing means (90) is also used during maintenance, the number of parts can be reduced, and the once removed fixing member can be made difficult to lose.

  Next, in the invention according to claim 4 that depends on any one of claims 1 to 3, when the upper and lower seal bodies (32, 34) approach each other, the upper seal body ( 32) moves, and when the pressure for sandwiching the film by both the sealing bodies (32, 34) reaches a set value, the linking means (20) and the upper sealing body (32) are brought into an unlinked state, and the linking means ( 20) The linkage means (20) and the upper seal body (32) are connected via an interlock release means (44) for moving only 20).

  According to the fourth aspect of the present invention, it is possible to maintain a constant sealing pressure in the lateral seal that sandwiches the film by the both seal bodies (32, 34).

  Next, in the invention according to claim 5 that depends on any one of claims 1 to 4, pipe or wiring (72) connected from the cutter driving means (70) to the cutter driving means (70) is provided. The bracket (60) is turned upside down and fixed to the support portion (50) without being removed.

  According to the fifth aspect of the present invention, the bracket (60) is turned upside down and fixed to the support portion (50) without removing the piping or wiring connected to the cutter driving means (70). Therefore, workability is improved. Further, not only the cutter (80) but also the maintenance work of the cutter driving means (70) is improved.

  The present invention adopts the means of each of the above inventions to provide a cutter detachment structure in a horizontal bag making and filling machine capable of performing good maintenance of the cutter on the spot without carrying the cutter removed from the horizontal sealing device. Can do.

It is a schematic front view of the horizontal sealing device in the horizontal bag making and filling machine according to the embodiment. It is the schematic front view which showed the state which removed the bracket which supports a cutter from the horizontal seal apparatus of FIG. 1 upwards. (A) The figure is a fragmentary sectional view in the IIIA-IIIA location of FIG. (B) The figure is a fragmentary sectional view in the IIIB-IIIB location of FIG. It is a top view in the IV-IV location of FIG. It is the schematic front view which showed the state which turned the bracket upside down so that a cutter might face upwards, and was fixed to the support part of the horizontal bag making filling machine.

  Hereinafter, embodiments will be described with reference to FIGS. The horizontal bag making and filling machine 1 in this embodiment forms a strip-like film conveyed by a film conveying means (not shown) into a cylindrical shape by a film forming means (not shown) and also supplies an article supply means (not shown) such as a belt conveyor. In the so-called box motion type horizontal sealing device 10, a pair of sealing bodies that are close to and away from each other in the vertical direction in a so-called box motion type horizontal sealing device 10. 32 and 34 are arranged so that they can move horizontally in the transport direction of the tubular film with the tubular film sandwiched between the front and rear intermediate portions in the transport direction of the tubular film, and can move forward and backward from within the upper seal body 32. It is an apparatus for obtaining a packaging bag product by repeating the movement of cutting the film with the cutter 80 provided. Since this structure is well known, detailed description thereof is omitted.

The lateral seal device 10 includes a servo motor 27 as a drive source disposed on a support frame (not shown) and a drive transmission mechanism 28 using any one of a link mechanism, a cam mechanism, a pulley mechanism, a gear mechanism, and the like as a drive unit 26. ing.
The drive transmission mechanism 28 is connected to the upper movable body 22 and the lower movable body 24 as the linking means 20, and the driving force of the servo motor 27 is changed to a force in a direction opposite to the upper movable body 22 and the lower movable body 24. As a result, the movement is changed to move the upper seal body 32 and the lower seal body 34 toward and away from each other.

The lower movable body 24 includes a guide cylinder 24b disposed on the left and right sides, and a lower installation body 24a installed on both guide cylinders 24b. A lower seal body 34 is provided on the lower installation body 24a.
The upper movable body 22 includes a slide rod 22b that is fitted into each guide cylinder 24b and supported so as to be slidable up and down by each guide cylinder 24b, and an upper installation body 22a.
The upper erected body 22a is provided with slide portions 40 that extend vertically through two places that are symmetrical.

Each slide portion 40 has a support rod 42 that can slide only in the vertical direction with respect to the upper erected body 22a. The upper seal body 32 is connected to each lower end of the support rod 42, and a support portion is provided at each upper end of the support rod 42. 50 are connected.
A coil spring 44 is disposed on the outer periphery of each support rod 42 as linkage release means. Each coil spring 44 always urges the upper seal body 32 downward, and when the pressure for sandwiching the films of the upper and lower seal bodies 32 and 34 reaches a set value, the coil spring 44 contracts to keep the sandwiching pressure constant. The upper seal body 32, the support rod 42, and the support portion 50 that are integrally connected are moved upward with respect to the upper construction body 22a.
That is, when the pressure for sandwiching the film reaches a set value, the coil spring 44 contracts, so that the upper seal body does not interlock and does not move downward even if the linkage means 20 moves downward. Become.

As shown in FIG. 4, the upper body 22a has an air cylinder 70 as a cutter driving means to be described later, a through hole 23a through which a cutter 80 attached to the air cylinder 70 can be inserted from above, and through holes on both sides thereof. 23b is formed, and the support part 50 is formed with an opening 52 cut out from one side.
Each through hole 23b is larger than the thickness dimension of the cutter 80 and smaller than the width of the cutter accommodation groove 33 formed in the upper seal body 32, and accommodates the cutter in the thickness direction of the cutter 80 (hereinafter, referred to as the thickness direction). The upper seal body 32 is disposed with respect to the upper erected body 22a so as to be positioned inside the groove 33, and the length of the left and right from the end of one through hole 23b to the end of the other through hole 23b is the cutter 80. It is formed so that it can be inserted from above by inclining left and right.
In addition, a peripheral edge 54 (a side surface that intersects the thickness direction of the cutter among the side surfaces that form the opening) is formed in the opening 52 of the support portion 50 at a position that substantially coincides with the peripheral edge of the through hole 23a. The peripheral edge 54 has substantially the same length as the left and right lengths from the end of one through hole 23b to the end of the other through hole 23b, and functions as a positioning means for guiding the dictated bracket 60 to an appropriate position.

As shown in FIG. 4, in the support portion 50, first hole portions 56, 56 and second hole portions 58, 58 (see FIG. 2) are formed on the left and right sides of the opening portion 52, and the second hole portions 58, 58 are formed. Rectangular positioning plates 59, 59 are disposed around the periphery of the. In substantially the center of the positioning plate 59, third holes 59b and 59b (see FIG. 2) are formed.
2 and 4, the third holes 59b and 59b are formed on the end surface 59a of the positioning plate 59 when the cutter 80 is fixed to the center of the cutter receiving groove 33 of the upper seal body 32 for the first time in the thickness direction of the cutter. The bolt 92 and the positioning plate 59 are formed so as to be loose until the bolt 92 as a fixing member is tightened in a state where it is in contact with a beam body 62 described later. When the positioning plate 59 is fixed by tightening the bolt 92, it is not released thereafter.

  In the cutter 80, a flat main body portion 82 and a blade portion 84 continuous with the lower portion of the main body portion 82 are integrally processed, and are fixed to an air cylinder 70 as a cutter driving means at the center of the upper portion of the main body portion 82 with bolts or the like.

The air cylinder 70 is provided with a detent 74 in order to prevent the cutter 80 from rotating about an axis that faces in the vertical direction. Therefore, the cutter 80 is only allowed to move in the vertical direction by the operation of the air cylinder 70. The
The air cylinder 70 is fixed to the bracket 60 at the top thereof.

The bracket 60 includes a flange portion 64 to which the air cylinder 70 is attached, and a rectangular parallelepiped beam body 62 extending to the left and right at the upper surface side center of the flange 64.
On both sides of the beam body 62, corresponding to the first holes 56, 56 of the support part 50, fourth holes 68, 68 having a diameter larger than that of the first holes 56, 56 and penetrating in the vertical direction are formed. ing.
The size of the flange portion 64 is smaller than the opening portion 52 of the support portion 50, and when the cutter 80 suspended from the bracket 60 is disposed toward the upper seal body 32 from above, the side surface 66 of the flange portion 64. So that the cutter 80 comes into contact with the peripheral edge 54 of the opening 52 of the support portion 50 and the cutter 80 is set at an appropriate position, that is, the cutter 80 is arranged at the center in the thickness direction of the cutter accommodating groove 33 of the upper seal body 32. The size and the like of the portion 64 and the opening 52 are set.
For this reason, the peripheral edge 54 of the support portion 50 functions as a positioning means for guiding the side surface 66 and the cutter 80 of the bracket 60 to an appropriate position, and the support portion 50 is located below the bracket 60 on the upper end side of the slide portion 40. It functions as a member that regulates movement.
When the flange portion 64 comes into contact with the peripheral edge 54 of the opening portion 52, a fixing member such as a bolt 90 is attached to the fourth hole portions 68 and 68 of the beam body 62 and the first hole portions 56 and 56 of the support portion 50. By inserting and fixing the fixing means, the mounting and fixing of the cutter 80 at an appropriate position is completed.

At this time, the blade portion 84 of the cutter 80 is housed in the cutter housing groove 33 of the upper seal body 32, and when the upper and lower seal bodies 32, 34 sandwich the film, the blade portion 84 of the cutter 80 The cylinder 70 is disposed so as to move forward and backward with respect to the cutter accommodating groove 35.
When performing maintenance such as cleaning, inspection, and replacement of the cutter 80 and the air cylinder 70 arranged in this way, there is no obstacle around the upper seal body 32 and the lower seal body 34, such as a state where the upper seal body 32 and the lower seal body 34 are separated from each other. In this state, after removing the bolt 90 and moving the bracket 60 upward to draw the air cylinder 70 and the cutter 80 upward from the opening 52 of the support portion 50, the blade portion 84 of the cutter 80 faces upward. The bracket 60 is turned upside down, and as shown in FIG. 5, the bolt 90 is inserted into and fixed to the fourth holes 68 and 68 of the inverted bracket 60 and the first hole 56 of the support 50. Has been.

The air pipe 72 for driving the air cylinder 70 has a length that allows the bracket 60 to be turned upside down and attached to the support portion 50 without being removed from the air cylinder 70.
As described above, the cutter detachment structure in the horizontal bag making and filling machine 1 is that the cutter 80 heated by the seal bodies 32 and 34 is removed from the horizontal seal device 10 and then turned upside down and attached to the horizontal seal device 10. Thus, the operator can perform maintenance work such as cleaning, inspection, and replacement of the cutter 80 and the air cylinder 70 on the spot in a state where both hands are released.
In addition, since the cutter 80, the air cylinder 70, and the bracket 60 are integrally connected, the cutter 80, the air cylinder 70 can be detached from the support portion 50, and workability in detaching the cutter 80 and the air cylinder 70 is good. In addition, the cutter 80 or the air cylinder 70 can be easily exchanged outside the lateral sealing device 10. Moreover, the support part 50 which supports the bracket 60 is on the upper end side of the slide part 40, and the bracket 60 is configured above the support part 50. Therefore, even if the bracket 60 is turned upside down, there is no obstacle around the cutter 80 and the air cylinder 70, and the workability during maintenance is good. In addition, since the support portion 50 and the upper seal body 32 are fixed via the slide portion 40, the cutter 80 can be disposed at an appropriate position with respect to the upper seal body 32. Further, positioning means 54 and 59 a for guiding the bracket 60 to an appropriate position in the thickness direction of the cutter 80 in a state where the support portion 50 supports the bracket 60. Accordingly, the cutter 80 can be held at an appropriate position with respect to the pair of upper and lower seal bodies 32 and 34.

  Further, the support portion 50 includes an opening 52 having a size that allows the air cylinder 70 to pass downward, in addition to the configuration for restricting the bracket 60 from dropping downward, so that the cutter 80 and the air cylinder 70 are connected to each other. Thus, the opening 52 of the support portion 50 can be passed, and the bracket 60 can be easily turned upside down. In addition, the number of parts can be reduced by using the peripheral edge 54 (the side surface that intersects the thickness direction of the cutter among the side surfaces forming the opening) as the positioning means.

  Further, the fixing member 90 as the fixing means that has fixed the bracket 60 to the support portion 50 is also used during maintenance as the second fixing means for attaching the bracket 60 that is turned upside down to the support portion 50, so that the number of parts can be increased. Further, it is possible to make it difficult to lose the fixing member 90 once removed.

  Further, since the bracket 60 is turned upside down and fixed to the support portion 50 without removing the piping or wiring connected to the air cylinder 70, workability is improved. Further, not only the cutter 80 but also the maintenance work for the air cylinder 70 is improved.

  As mentioned above, although embodiment of this invention was described, the cutter removal | desorption structure in the horizontal bag making and filling machine of this invention is not limited to this embodiment, It can implement with other various forms.

  For example, the horizontal sealing device according to the present embodiment is configured such that the pair of upper and lower sealing bodies move in the conveying direction of the cylindrical film while sandwiching the cylindrical film to perform horizontal sealing, and the cutter is disposed on the upper sealing body. After cutting, the so-called box motion type is shown in which both seal bodies repeat the movement of moving away from each other. However, the present invention is not limited to this, and a horizontal seal device of a type in which a pair of vertically opposed seal bodies move only in the vertical direction to approach and separate from each other may be used.

  Moreover, as long as the fixing means and the second fixing means can reliably fix the bracket to the support portion, the fixing means may be constituted by a fixing member such as a lock lever or a pin. Moreover, you may prepare the fixing member only for a maintenance as a 2nd fixing means.

  Further, an air cylinder is exemplified as the cutter driving means, and an air pipe is shown to drive the air cylinder. However, it is not limited to this. The cutter driving means may be constituted by a servo motor or the like. In such a case, wiring is connected instead of air piping.

  Various known configurations can be employed for the driving means of the lateral seal device. As the driving means of the lateral seal device, a driving transmission mechanism such as a link mechanism, a cam mechanism, a gear mechanism, or a pulley mechanism can be applied as the driving force of a driving source such as a servo motor.

  The bracket may comprise a plurality of members, and various shapes of brackets may be employed.

  The interlock release means may be an elastic body other than the coil spring as long as it has a structure that suppresses the increase in seal pressure, or the distance from the upper seal body according to the amount of vertical movement of the support portion using a cam mechanism or a link mechanism It may be a structure that uses and adjusts.

  As for the positioning means, the movement of the bracket may be regulated in both directions in the thickness direction of the cutter.

1: Horizontal bag making and filling machine, 10: Horizontal seal device, 20: Linking means, 27: Servo motor (drive means 26), 28: Drive transmission mechanism (drive means 26), 32: Upper seal body, 34: Lower seal Body: 40: slide part 44: coil spring (interlocking release means) 50: support part 52: opening part 54: peripheral edge (side surface of the opening part, positioning means) 60: bracket 70: air cylinder (cutter) Driving means), 72: air piping (piping or wiring), 80: cutter, 90: fixing member (fixing means, second fixing means)

Claims (5)

A cylindrical film containing articles at predetermined intervals in the conveyance direction of the cylindrical film is sandwiched between a pair of sealing bodies that are vertically close to and spaced apart from each other and laterally sealed, and arranged so that it can advance and retreat from the upper sealing body. Cutter detachment structure of a horizontal seal device in a horizontal bag making and filling machine that cuts a film with a provided cutter,
Linkage means that moves up and down by the driving force transmitted from the driving means;
A slide portion that supports the upper seal body and is supported by the linkage means so as to be movable in the vertical direction together with the upper seal body with respect to the linkage means at the time of sealing;
A bracket for supporting the cutter via a cutter driving means for raising and lowering the cutter;
A support that supports the bracket on the upper end side of the slide portion and restricts the bracket from falling downward when the cutter suspended from the bracket is disposed toward the upper seal body from above. And
Positioning means for guiding the bracket supported by the support portion to an appropriate position in the thickness direction of the cutter;
Fixing means for fixing the bracket guided to the appropriate position to the support portion;
A cutter attaching / detaching structure for a horizontal bag making and filling machine, comprising: a second fixing means for fixing the bracket inverted up and down so that the cutter faces upward.   The support portion includes an opening having a size that allows the cutter driving unit to pass downward, and a side surface that intersects a thickness direction of the cutter among the side surfaces forming the opening is the positioning unit. The cutter detachment structure in the horizontal bag making and filling machine according to claim 1.   The cutter attaching / detaching structure for a horizontal bag making and filling machine according to claim 1, wherein a common fixing member is used for the fixing means and the second fixing means.   When the upper seal body moves together with the linking means when the upper and lower seal bodies are close to each other, and the pressure for sandwiching the film by both seal bodies reaches a set value, the linking means and the upper seal body are brought into an unlinked state. The cutter in a horizontal bag making and filling machine according to any one of claims 1 to 3, wherein the linkage means and the upper seal body are connected via an interlock release means for moving only the linkage means. Desorption structure. 5. The structure according to claim 1, wherein the bracket is turned upside down and fixed to the support portion without removing piping or wiring connected to the cutter driving means from the cutter driving means. The cutter attachment / detachment structure in the horizontal bag making and filling machine according to any one of the above.

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