JPH024881Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is suitable for packaging mushrooms, especially Enoki mushrooms, in an optimal position that matches the filling capacity of Enoki mushrooms. This invention relates to a bag folding packaging device for mushrooms, etc., which can be folded and packaged.

[Prior art] Conventionally, this type of bag folding packaging device for mushrooms, etc.
For example, the applicant proposed the
Publication No. 51210 is known.

In this conventional structure, enoki mushrooms are supplied to the input port and placed on the enoki mushroom mounting plate, and a bag made of a flexible material such as polyethylene with the bag mouth open and supported is placed in front of the enoki mushroom mounting plate. In this bag, a semi-cylindrical receiving plate with an upper opening is provided at the bottom of the bag filled with enoki mushrooms by the movement of the plate described above, and one of the rising side walls of this semi-cylindrical receiving plate is placed outside the bag. An operating rod is disposed at the end along the length direction, and the lower side of the receiving plate is rotated so that the operating rod crosses from the outer end position of the one side wall to a position near the inner side of the other side wall. The upper opening side of the receiving plate is formed to be rotatably movable as a fulcrum, and at the same time the operating rod rotates and returns between the outer end position of the one side wall and the position near the inner side of the other side wall, the receiving plate is rotatably moved. The peripheral end of the bag extending above the opening side of the receiving plate placed on the plate is brought into contact and pressed by the rotational movement of the operating rod, so that the peripheral end of the bag is folded back.

[Problem that the invention attempts to solve]

However, in the case of the above-mentioned packaging device,
Although it is possible to cover a certain amount of increase or decrease in the volume of the packaged product such as enoki mushrooms, there is a limit to the increase or decrease in the volume.

In other words, the more items to be packaged, the more
The operating rod that folds back the peripheral side edge of the bag tends to fold back the side edge of the bag while directly pressing the object to be packaged, and as a result, the relatively soft object to be packaged inside the bag may be damaged.

This invention was made for the purpose of solving such problems.

[Means for solving problems]

The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 6 corresponding to the embodiments. A flexible bag filled with mushrooms etc.
is placed in a horizontal position with the bag side edges 1a and 1b located above and below on a substantially semi-cylindrical bag mounting board 2 with the upper side facing the open part 2a, and the bag mounting board is placed above the bag mounting board 2. The folding rod 3 reciprocates across the open portion 2a from near one open edge 2b of 2 to near the other open edge 2c.
is arranged, and the upper bag side edge 1a is brought into contact and pressed by the movement of the folding rod 3, and the bag side edge 1a is folded back. 14 is provided with a central shaft 13, and a rotating lever 15 is pivotally mounted on the central shaft 13 as a fulcrum.
In addition, an adjustment rod 16 is connected to the upper part of the rotary lever 15 so that its movement can be adjusted, and the folding rod 3 is fixed to the upper end of the adjustment rod 16.
is provided to be variably adjustable in the vertical direction, and the folding position of the bag side edge 1a is varied to set the folding amount l of the bag side edge 1a to an appropriate amount.

〔Example〕

Embodiments of the present invention will be described below based on the attached drawings.

A bag mounting board 2 on which a flexible bag 1 filled with mushrooms etc. a is placed in a lying down state is formed in a substantially semi-cylindrical shape with an open side 2a at the top, and this bag mounting board 2 moves left and right. In other words, a bearing plate 6 is fixed to the lower surface of the lower base plate 5, and two guide shafts 7 are arranged in parallel on this bearing plate 6. The approximately ⊥-shaped movable plate 4 is provided on this guide shaft 7 so as to be able to reciprocate from side to side by means of a moving cylinder 8, and the center portion of the lower surface of the bag loading plate 2 is attached to the upper part of the movable plate 4 by a fulcrum pin 9. Therefore, a discharge cylinder 10 is attached to the movable plate 4, and the cylinder rod 10a of the discharge cylinder 10 is connected to the lower discharge side of the bag mounting plate 2 via a connecting link 11. Pivotally connected by pins 12a and 12b, the bag loading plate 2 is discharged tilted from FIG. 2 to FIG. I'm trying to get it working.

Further, the folding rod 3 of this embodiment reciprocates around the central axis 13 at the lower center of the bag mounting plate 2 from near the open edge 2b on one side to near the open edge 2c on the other side across the open portion 2a. In other words, the middle part of a rotating lever 15 is pivotally connected to the central shaft 13 of the support plate 14 at the lower center of the bag loading plate 2, and an adjustment rod 16 is protruded vertically from the upper part of the rotating lever 15 for adjustment. A return spring 17 is suspended between the rear part of the adjusting rod 16 and the side of the support veneer 14 so that the folding rod 3 is pressed against the open edge 2b.
A folding rod 3 having approximately the same length as the bag 1 is provided protruding along the open edges 2b and 2c, while a rotating lever 15
A substantially triangular locking piece 18 is attached to the lower part of the idling shaft 19.
A cutout surface 15a is formed at the lower part of the rotating lever 15 to contact the pressing surface 18a of the locking piece 18, with a play gap 18b interposed between the pressing surface 18a and the pressing surface 18a. An adjustment gap 15b is formed on the opposite side of the cutout surface 15a, and the mounting bracket 20 is positioned in the middle of the movement locus of the locking piece 18 that moves as the movable plate 4 moves, so that the mounting bracket 20 is attached to the lower base plate 5. 18 is mounted so as to be adjustable in the direction of movement thereof, and a rotational position adjusting plate 21 that abuts the locking piece 18 is mounted on this mounting bracket 20 so as to be vertically adjustable.

Further, in this embodiment, a vertical adjustment slot 22 is formed in the adjustment rod 16, and this adjustment slot 22 has two
A main adjustment bolt 23 is inserted through and screwed onto the rotation lever 15, and the folding rod 3 is adjusted up and down using the two adjustment bolts 23 and the adjustment slot 22.

Further, an upper base plate 23 is arranged above the bag mounting plate 2, and a fixed clamping plate 25 that clamps and supports the upper bag side edge 1a of the bag 1 directly below the upper base plate 23.
and a movable clamping plate 26 are disposed facing each other, and the movable clamping plate 26 is moved forward to clamp the upper bag side edge 1a of the bag 1 between the fixed clamping plate 25 and the movable clamping plate 26. In this state, open the bag opening using an opening mechanism (not shown), insert a certain amount of mushrooms, etc. a into the opened bag 1, and after the insertion is completed, move the movable clamping plate 26 backward to clamp the bag 1. The bag is released and allowed to fall onto the bag loading board 2 under its own weight.

Moreover, a sponge-like degasser 27 is disposed above the inclined position of the mushrooms etc. a by a degassing cylinder 28 so as to be able to be raised and lowered, and the bag side edge 1 is moved by a folding rod 3.
a is folded back and then lowered, the bag 1 is clamped between the bag mounting plate 2 and the degasser 27, and the air inside the bag 1 is discharged.

Since this embodiment has the above-mentioned configuration, when the stuffing of the mushrooms etc. a into the bag 1 is completed, the stuffed bag 1
falls due to its own weight due to the retreat of the movable clamping plate 26, and the second
It will be placed on the bag mounting board 2 as shown in the figure.

Then, the moving cylinder 8 is activated and the moving plate 4 starts moving from the original position to the discharge position.

During the movement, the lower end of the locking piece 18 comes into contact with the rotation position adjustment plate 21, and in this operating direction, the pressing surface 18a of the locking piece 18 is pressed against the notch surface 15 of the rotation lever 15.
a, and as the locking piece 18 moves, the folding rod 3 attached to the rotating lever 15 about the central axis 13 gradually rotates from one open edge 2b to the other open edge 2c. At this time, the folding rod 3 contacts and presses the upper bag side edge 1a of the bag 1, and the bag side edge 1a is folded back as shown in FIG.

When the movable plate 4 moves further, the locking piece 18 comes off from the rotation position adjustment plate 21 as shown in FIG. The folding rod 3 rotates back from the other open edge 2c to the one open edge 2b, and comes into contact with the one open edge 2b and stops rotating.
The moving plate 4 then stops at the discharge position.

Then, the degassing gas 27 is released from above into the degassing cylinder 2.
8, the bag 1 is clamped between the degasser 27 and the bag mounting plate 2 as shown in Fig. 5, and the air inside the bag 1 is discharged by this clamping action to perform deaeration. , degassed gas 2
7 rises, and then the bag opening is clamped and screwed in by a bag opening supply screwing mechanism (not shown), and the bag opening is closed and heat-sealed by a heat sealing mechanism (not shown).

Once bag 1 has been deaerated and heat sealed closed,
As shown in FIG. 6, the discharge cylinder 10 is operated to tilt the bag loading plate 2 about the fulcrum pin 9 for discharge, and the bag 1 filled with mushrooms etc. a is discharged.

Conversely, the moving plate 4 is retracted by the moving cylinder 8 and returns to the original position shown in FIG.

At this time, the locking piece 18 comes into contact with the rotation position adjustment plate 21 even during the retreat, but in this method of operation, the locking piece 18
8 has a cut corner and has a play gap 18b, so it can freely escape and rotate around the free rotation shaft 19.
It does not act on the rotation lever 15.

By repeating this operation, the bag side edge 1a is folded back, deaerated, screwed in, and heat sealed to be sealed and packaged.

Here, in the bag folding operation described above, loosen the adjustment bolt 23, adjust the adjustment rod 16 up and down along the adjustment slot 22, and then tighten the adjustment bolt 23 to adjust the adjustment rod 16 up and down. As a result, the movement locus R of the folding rod 3 changes, and thereby the bag side edge 1a
It is possible to adjust the folding amount l to correspond to an increase or decrease in the packing capacity of mushrooms etc. a, and it is possible to package the mushrooms etc. in an optimal folded state.

[Effect of idea]

As mentioned above, this idea provides a central axis on the supporting projecting plate that supports the bag loading plate, a rotating lever is pivoted around this central axis as a fulcrum, and an adjustment lever can be moved and adjusted on the upper part of this rotating lever. The folding rod is fixed to the upper end of the adjusting rod, and the movement locus of the folding rod can be variably adjusted in the vertical direction, so that the folding position of the folding rod and the bag side edge can be varied. The folding amount of the side edge of the bag can be variably set to an appropriate amount with a simple structure, and this allows the bag side edge to be folded back at the optimal folding position depending on the capacity of stuffed mushrooms, etc. This also simplifies the folding movement behavior of the folding rod, making it possible to fold back the side edge of the bag easily and reliably at high speed, making it possible to perform subsequent packaging operations well, ensuring good sealing, and a good appearance. Packaging performance with good appearance and high commercial value can be obtained.

Moreover, even if you are dealing with mushrooms, especially Enoki mushrooms, which require the highest level of freshness and can easily get damaged even if they come into contact with something, you can simply adjust the folding rod up and down. It is now possible to fold the side edge of the bag at a folding position that does not touch the folding position, and this problem can be prevented, and if the amount of stuffing is small, the bag may be packaged in a sagging state. However, this can also be prevented by adjusting the movement locus of the folding rod.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Figure 1 is a perspective view of the main part, Figure 2 is a side view of the main part, and Figure 3 is a side view of the main part.
4, 5, and 6 are side views showing the operating state. a... Mushrooms, etc., l... Turning amount, R... Movement trajectory, 1... Bag, 1a, 1b... Bag side edge, 2...
...Bag mounting plate, 2a...Opening part, 2b...One open edge, 2c...Other open edge, 3...Folding rod, 13
... Central shaft, 14 ... Support projecting plate, 15 ... Rotating lever, 16 ... Adjustment rod.

Claims (1)

[Scope of utility model registration request] A flexible bag filled with mushrooms, etc. is placed on a roughly semi-cylindrical bag mounting board with the open side at the top in a horizontal position with the bag side edges positioned above and below. A folding rod is disposed above the bag mounting plate that moves back and forth across the open portion from near one open edge to near the other open edge, and by the movement of this turning rod, the upper bag side edge is pressed in contact and the bag side edge is folded back, in which a central axis is provided on the support projecting plate that supports the bag mounting plate, a rotating lever is pivoted around this central axis as a fulcrum, and this An adjusting rod is connected to the upper part of the rotating lever so that its movement can be adjusted, the folding rod is fixed to the upper end of the adjusting lever, and the movement locus of the folding rod is provided to be variably adjustable in the vertical direction. 1. A bag folding packaging device for mushrooms, etc., characterized in that the folding position of the bag side edge part is varied so that the folding amount of the side edge of the bag can be set to an appropriate amount.