JP4799064B2 - Improvement of filling chute of automatic packaging machine - Google Patents

Description

  The present invention relates to a filling chute having a bag making guide function for folding a packaging film into a bag shape in order to continuously form a packaging bag in an automatic packaging machine, and in particular, a packaging film wound around the filling chute. The present invention relates to a filling chute attachment position adjusting mechanism that can easily adjust slack.

  A conventional L-shaped seal fitting type automatic packaging machine is described in Patent Document 1. The bag making guide function of the filling chute in such an automatic packaging machine is responsible for, for example, a process of folding the packaging film in half in an L-shaped seal fitting type automatic packaging machine. That is, this step is a step of folding the long packaging film drawn from the raw roll into a folded state while being attached to the filling chute, and the folded packaging film is then vertically sealed by an L-shaped seal fitting. It is sent to the process and the horizontal sealing process.

  FIG. 5 is a front view of a filling chute in a conventional L-shaped seal fitting type automatic packaging machine. FIG. 6 is a side view of a filling chute in a conventional L-shaped sealing metal fitting type automatic packaging machine. As shown in FIG.5 and FIG.6, the structure regarding the bag making guide function in the conventional filling chute is as follows. The packaging film FX is sent downward along the bag making guide portion 123 of the filling chute 121, and becomes a packaging film FY folded in the vicinity of the input cylinder 126 while being guided by the shape of the bag making guide portion 123.

  The filling chute 121 has a funnel-shaped charging part 125 for filling the bag-shaped packaging film with the contents, and is connected to the charging cylinder 126. Then, the contents are put in the charging unit 125 and collected in the charging cylinder 126, and then filled in a folded package bag.

  In order to fix the filling chute 121 as a whole to the automatic packaging machine, the right side attachment portion 127 and the left side attachment portion 128 are welded to the feeding portion 125, and the right side attachment portion 127 and the left side attachment portion 128 are automatically packaged. Screwed to an L-shaped bracket provided on the machine.

  Such a mounting position of the filling chute 121 has a great influence on the finished state of the packaging bag, and holds the key of whether or not the occurrence of ear misalignment and wrinkles can be suppressed particularly in the finished packaging bag.

That is, if the mounting position of the filling chute is shifted to the left or right of the front view with respect to the position where the packaging film flows, an ear misalignment occurs. If the packaging film is loosened, wrinkles will occur.
Japanese Utility Model Publication No. 50-31158

  As described above, the mounting position of the filling chute 121 needs to be strictly adjusted before the bag making operation in the packaging machine, and the manufacturing position for confirming the mounting position adjustment in the conventional filling chute shown in FIGS. In the bag operation, if ear misalignment or wrinkle occurs, loosen the screw fixing parts in the right attachment part 127 and the left attachment part 128 and the L-shaped bracket on the automatic packaging machine side, and shift the filling chute left and right as viewed from the front and back and forth. After that, tighten the screws again and carry out the bag-making operation to check the attachment position adjustment. Then, the above attachment position adjustment work and the bag making operation for confirmation are repeated until an optimum attachment position where no ear misalignment or wrinkle is found is found.

  Such a mounting position adjustment operation is an operation accompanied by an act of loosening or tightening a set screw using a tool because the mounting structure of the filling chute is screwed, and the position of the filling chute main body is gradually adjusted. There is also a need for a manual operation for shifting to the other. For this reason, the mounting position adjustment work takes time and labor, and there is a problem that it is difficult to perform fine adjustment.

  Furthermore, since the packaging machine is moved after the attachment position adjustment work to make a test bag and the adjustment result is confirmed, there is a problem that a wasteful packaging film is consumed in proportion to the position adjustment time.

  In addition, in such a mounting position adjusting operation, in the finished packaging bag, when it is desired to suppress the generation of wrinkles as much as possible, the filling chute is projected as far as possible to attach the packaging bag at a position where the slack of the packaging film is reduced. In addition, when you want to fill as much content (raw material) as possible in the packaging bag, it is necessary to inflate the packaging bag. In this case, the packing chute is loosened slightly after the filling chute. Attach so that a little occurs. For this reason, there has been a demand for means capable of quickly and easily adjusting the position of the filling chute in accordance with the specifications and finished state of the packaging bag to be manufactured.

  The present invention was created in view of the problems of the conventional filling chute, and is attached with a filling chute for suppressing the occurrence of ear misalignment and wrinkles during the bag making operation of the packaging film to obtain an optimum packaging bag. An object of the present invention is to provide a means for easily performing the position adjustment operation.

In order to achieve the above object, an automatic packaging machine according to claim 1 of the present invention bends a central portion of a packaging film while transporting the packaging film in a substantially vertical downward direction, and in a packaging bag formed by a sealing device. A filling chute for charging the contents into the bag and forming a bag shape by applying a vertical seal and a horizontal seal to the folded packaging film using a seal fitting, and after the contents are charged into the bag An automatic packaging machine comprising a sealing device for sealing the charging port, and a feeding roll for appropriately transporting a large number of packaging bags made by the filling chute and the sealing device, wherein the filling chute is in the center of the packaging film A bag making guide part for bending the part, an input part for supplying the contents, an input cylinder for guiding the input contents into the packaging bag, and a filling chute are fixed to the automatic packaging machine. A mechanism for adjusting the position of the entire filling chute in the left-right direction when viewed from the front of the packaging machine, and a mechanism for adjusting the position of the lower side of the filling chute main body before and after when viewed from the front of the packaging machine. Is provided ,

The mechanism for adjusting the position of the entire filling chute in the left-right direction is such that a left-right position adjustment knob is screwed to the threaded filling chute main body shaft, and the left-right position adjustment knob is rotatable in the mounting portion and left and right. By holding the left and right position adjustment knob manually by the automatic packaging machine operator, it is possible to move the filling chute to a position where the finished packaging bag will not be deviated, A mechanism for adjusting the position of the lower side of the filling chute main body in the front-rear direction is such that a rotation position adjustment plate is attached to the shaft of the filling chute main body, and the rotation engaged with the rotation position adjustment plate is pushed backward or pulled forward. The position adjustment knob is screwed and held in the mounting part, and the rotation position adjustment knob is rotated manually by the automatic packaging machine operator, and the result is completed. Is characterized by wrinkling of the packaging bag was that it is possible to move the filling chute at a position not occur.

According to the filling chute automatic packaging machine according to the first aspect of the present invention, by suppressing the generation of ears deviation or wrinkles in the bag making operation of the packaging film, the mounting position adjustment of the filling chute for the optimum packaging bag Work can be done easily.

As described above, according to the present invention, in the mounting position adjustment work of the filling chute, it is possible to easily perform delicate position adjustment by manual operation of the packaging machine operator without taking time and effort. Play. In addition, in the test bag making operation performed after the filling chute attachment position adjustment operation, an excellent effect is achieved in that consumption of useless packaging films can be suppressed.

  An embodiment of an automatic packaging machine according to the present invention will be described with reference to the drawings. First, the overall configuration of the L-shaped sealing metal fitting type automatic packaging machine of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a front view showing an L-shaped seal bracket type automatic packaging machine according to the present invention, and FIG. 2 is a side view showing an L-shaped seal bracket type automatic packaging machine according to the present invention. In FIGS. 1 and 2, a partially exploded view is applied in the drawing.

  1 and 2, reference numeral 1 denotes an entire L-shaped seal fitting type automatic packaging machine (hereinafter abbreviated as an automatic packaging machine) according to the present invention. Reference numeral 10 is a packaging material roll, 11 is a packaging material supply motor, 12 is a hopper, 13 is a weighing turntable, 14 is a stepping motor, 15 is a main motor, 16 is a speed reducer, 17 is a belt conveyor, and 18 is a cutter device. , 19 is a feed roll, 20 is an L-shaped seal fitting, 21 is a filling chute, and 22 is a switchboard.

  Moreover, the packaging material roll 10 is obtained by winding a wrapping film in a coil shape around the same axis. The packaging film is made of a transparent or translucent material, for example, a base film such as PET or a heat seal film such as polyethylene having a melting point lower than that of the base film.

  As shown in FIGS. 1 and 2, the automatic packaging machine 1 drives the packaging material supply motor 11 and the like while pulling back and pulling out the long packaging film rewound from the packaging material roll 10. The wrapping film continuously flows in the vertical downward direction in the figure, and is folded into two in a U shape at the center by the filling chute 21. The folded packaging film is sandwiched by the L-shaped seal fitting 20 installed immediately below the filling chute 21 so as to perform vertical heat sealing and horizontal heat sealing at the same time, thereby forming a bag shape.

  The hopper 12 contains contents (raw materials), and the contents are cut and weighed to a certain amount by the weighing turntable 13, and then the weighed contents are charged at the inlet of the filling chute 21 at a certain timing. It is filled in the bag of the packaging film that is dropped into the part and inserted through the charging cylinder that is the outlet of the filling chute.

  The packaging film including the bag portion filled with the contents is conveyed downward by one bag by the feed roll 19 and then sandwiched again by the L-shaped seal fitting 20 to perform vertical heat sealing and horizontal heat sealing. The upper part of the bag portion filled with is sealed. At the same time, the next packaging bag is formed by sandwiching the L-shaped seal fitting 20, and a continuous packaging bag is completed by repeating the contents filling operation and the sealing operation of the upper portion of the bag.

  The continuous packaging bags are sent to the cutter device 18 directly below, and the central seal of the horizontal seal portion is cut or perforated, and the packaging bags in individual packaging form fall on the belt conveyor 17, Transported and boxed.

  FIG. 3 is a front view of a filling chute in an L-shaped sealing metal fitting type automatic packaging machine according to the present invention. FIG. 4 is a top view of the filling chute in the L-type sealing metal fitting type automatic packaging machine according to the present invention. As shown in FIGS. 3 and 4, the bag making guide function of the filling chute 21 according to the present invention is as follows.

  The packaging film FX is sent downward along the bag making guide portion 23 of the filling chute 21 and becomes a packaging film FY folded in the vicinity of the input cylinder 26 while being guided by the shape of the bag making guide portion 23.

  The filling chute 21 has a funnel-shaped charging portion 25 for filling the bag-shaped packaging film with the contents, and is connected to the charging cylinder 26. In other words, the contents are put in the charging unit 25 and collected in the charging cylinder 26, and then filled in a folded folding bag.

  In order to fix the filling chute 21 as a whole to the automatic packaging machine, a mounting portion 24 bent in a substantially concave shape in front view is welded to the bag making guide portion 23. The right attachment shaft 30 and the left attachment shaft 31 are welded to the attachment portion 24, and the right attachment shaft support portion 32 that supports the axial attachment direction and the rotation direction freely penetrates the right attachment shaft 30. The left attachment shaft 31 is penetrated by a left attachment shaft support portion 33 that is supported in an axial direction and a rotational direction. The right mounting shaft support portion 32 is welded to the right base plate 36, and the right base plate 36 is fixed to the packaging machine body with screws. Similarly, the left mounting shaft support portion 33 is welded to the left base plate 37, and the left base plate 37 is fixed to the packaging machine body with screws.

  Next, a mechanism for adjusting the position of the entire filling chute 21 in the left-right direction when viewed from the front of the packaging machine is installed on the right side of the right attachment shaft support portion 32. This configuration is as follows.

(1) The right side mounting shaft 30 adjacent to the right side of the right side mounting shaft support portion 32 is threaded, and a left and right position adjustment knob 34 is screwed to the screw portion.
(2) The left / right position adjustment knob 34 is sandwiched between members fixed to the right base plate 36 so that the knob itself does not move in the left / right direction.

  The operation of the mechanism for adjusting the position of the entire filling chute 21 in the left-right direction when viewed from the front of the packaging machine is as follows.

(1) When the packaging machine operator rotates the left / right position adjustment knob 34 rightward when viewed from the side of the packaging machine, the left / right position adjustment knob 34 is restricted so as not to move in the left / right direction. The right attachment shaft 30 is moved in the left direction.
(2) When the left / right position adjustment knob 34 is rotated counterclockwise when viewed from the side of the packaging machine, the right / left position adjustment knob 34 is restricted so as not to move in the left / right direction. 30 will be moved to the right.
(3) With the configuration and operation as described above, the filling chute 21 main body can be adjusted in the left direction or the right direction when viewed from the front by rotating the left / right position adjustment knob to the right or left when viewed from the side. In addition, it is possible to prevent occurrence of ear misalignment of the finished packaging bag.

  Next, a mechanism for adjusting the position of the filling chute 21 as a whole before and after the front view of the packaging machine is installed on the left side of the left attachment shaft support portion 33. This configuration is as follows.

(1) A rotation position adjusting plate 38 is welded to the left side mounting shaft 31 adjacent to the left side of the left side mounting shaft support portion 33.
(2) On the front surface of the rotational position adjusting plate 38, a screw portion of the rotational position adjusting knob 35 is screwed into a member rising from the left base plate 37. The tip is in contact with the rotational position adjustment plate 38.

  The operation of the mechanism for adjusting the position of the entire filling chute 21 before and after the packaging machine front view is as follows.

(1) When the packaging machine operator rotates the rotational position adjustment knob 35 to the right when viewed from the front of the packaging machine, the tip of the screw portion of the rotational position adjustment knob 35 is screwed forward to move backward, and the rotational position adjustment plate 38 is moved backward. Will come to press.
(2) The rotational position adjusting plate 38 pushed rearward moves in an arc shape around the left mounting shaft 31, and the lower portion of the filling chute 21 (such as the feeding cylinder 26) comes out in the front direction of the packaging machine. It becomes like this.
(3) For this reason, the slack of the packaging film flowing from the top to the bottom along the filling chute 21 is reduced, and the generation of wrinkles in the folded folded packaging bag is suppressed.
(4) When the rotation position adjustment knob 35 is rotated counterclockwise when viewed from the front of the packaging machine, the tip of the screw portion of the rotation position adjustment knob 35 is screwed forward to move forward, and the rotation position adjustment plate 38 is moved forward. Become.
(5) The rotational position adjusting plate 38 moved in the forward direction moves in an arc shape around the left mounting shaft 31, and the lower portion (the charging cylinder 26, etc.) of the filling chute 21 is retracted backward in the packaging machine. It becomes like this.
(6) For this reason, the slack of the packaging film flowing from the top to the bottom along the filling chute 21 increases, and a large amount of contents (raw material) can be filled by inflating the folded folded packaging bag. become able to.
(7) With the configuration and operation as described above, the lower position of the filling chute 21 main body can be adjusted in the forward or backward direction of the front view by rotating the rotational position adjustment knob 35 clockwise or counterclockwise when viewed from the front. As a result, it is possible to suppress the generation of wrinkles in the finished packaging bag and to obtain an optimum packaging bag.

  As mentioned above, in the said Example, although demonstrated using the example of an L-shaped sealing metal fitting type automatic packaging machine, such a filling chute is limited to the L-shaped sealing metal fitting with which the vertical seal bar and the horizontal seal bar were integrated. However, various types of seal fittings can be employed. For example, the present invention is also applied to a case where a vertical seal bar and a horizontal seal bar are separately installed and a packaging film is conveyed using a feed roll that performs an intermittent operation.

  Further, in the above embodiment, a mechanism for adjusting the position of the entire filling chute in the left-right direction is provided on the right side of the mounting portion for fixing the filling chute to the automatic packaging machine. There is a mechanism to adjust the position of the mounting chute, but this is not limiting. There is a mechanism to adjust the lower side of the main body of the filling chute to the front and rear on the right side of the mounting part. There may be a mechanism to do.

It is a front view which shows the L type metal fittings type automatic packaging machine which concerns on this invention. It is a side view which shows the L type metal fittings type automatic packaging machine which concerns on this invention. It is a front view of the filling chute in the L type seal metal fittings type automatic packaging machine concerning the present invention. It is a top view of the filling chute in the L type seal metal fittings type automatic packaging machine concerning the present invention. It is a front view of the filling chute in the conventional L type metal fitting type automatic packaging machine. It is a side view of the filling chute in the conventional L type seal metal fittings type automatic packaging machine.

DESCRIPTION OF SYMBOLS 1 L type metal fittings type automatic packaging machine 10 Packaging material roll 11 Packaging material supply motor 12 Hopper 13 Weighing turntable 14 Stepping motor 15 Main motor 16 Reducer 17 Belt conveyor 18 Cutter device 19 Feed roll 20 L type sealing metal 21, 121 Filling chute 22 Switchboard 23, 123 Bag making guide section 24 Mounting plate 25, 125 Loading section 26, 126 Loading cylinder 30 Right mounting shaft 31 Left mounting shaft 32 Right mounting shaft support section 33 Left mounting shaft support section 34 Left and right position adjustment knob 35 Rotation position adjustment knob 36 Right side base plate 37 Left side base plate 38 Rotation position adjustment plate 127 Right side attachment portion 128 Left side attachment portion FX Packaging film FY Folded packaging film

Claims (1)

A folding chute that folds the central portion of the packaging film while transferring the packaging film substantially vertically downward, and puts the contents into the packaging bag formed by the sealing device;
A sealing device that forms a bag shape by performing vertical sealing and horizontal sealing on the folded packaging film using a seal fitting, and seals the charging port after the contents are charged into the bag; ,
An automatic wrapping machine comprising a feeding roll for appropriately transporting a large number of packaging bags made by the filling chute and the sealing device,
The filling chute fixes a bag making guide part for folding the central portion of the packaging film, a charging part for charging the contents, a charging cylinder for guiding the charged contents into the packaging bag, and a filling chute to the automatic packaging machine. It consists of a mounting part,
The mounting portion is provided with a mechanism for adjusting the position of the entire filling chute in the left-right direction of the packaging machine front view, and a mechanism for adjusting the position of the lower side of the filling chute main body before and after the packaging machine front view ,
The mechanism for adjusting the position of the entire filling chute in the left-right direction is such that a left-right position adjustment knob is screwed to the threaded filling chute main body shaft, and the left-right position adjustment knob is rotatable in the mounting portion and left and right. By holding the left and right position adjustment knob manually by the automatic packaging machine operator, it is possible to move the filling chute to a position where the finished packaging bag will not be deviated,
A mechanism for adjusting the position of the lower side of the filling chute main body in the front-rear direction is such that a rotation position adjustment plate is attached to the shaft of the filling chute main body, and the rotation engaged with the rotation position adjustment plate is pushed backward or pulled forward The position adjustment knob is screwed and held in the mounting part, and the rotation position adjustment knob is manually rotated by the operator of the automatic packaging machine to move the filling chute to a position where wrinkles of the finished packaging bag do not occur. filling chute of automatic packaging machine, characterized in that it is.

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