JPH0454895Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a packaging device for mushrooms and other similar products, and particularly relates to an improvement in the clamping structure for twisting bags.

[Prior Art] This type of packaging device is proposed, for example, in Japanese Utility Model Publication No. 58-45204 by the same applicant.
Pre-weighed mushrooms or similar materials are fed from a hopper and placed on a supply member that is movable forward and backward under the hopper, and the bag is made of polyethylene or the like and has a bag opening opened and supported in front of the supply member. Mushrooms and other similar substances are accommodated in the container by the forward and backward movement of the supply member, and the bag containing the mushrooms and other similar substances is dropped onto the conveying member and moved, and the air inside the bag is removed by gentle pressure. Next, the bag opening is twisted and sealed with a heating element before being transported out.

The structure of twisting the bag opening is to clamp the opening of the bag containing mushrooms or similar materials between a pair of clamping members, rotate the clamped clamping members, and open the bag opening with a clamping element. In the twisted state, the twisted part of the bag opening is sealed by a heating element.

This type of bag twisting device was first developed in 1988.
Publication No. 172105 has been proposed by the same applicant. In this case, as shown in FIG. 12, the bag twisting device is provided with a protrusion c on one side of a pair of pinching members a and b, and a hole d on the other side, so that the bag opening e is pinched. When this is done, the protrusion c is inserted into the hole d with the bag opening e pushed in, and the pair of clamping members a and b engage with each other to clamp the bag opening e as a whole.

[Problems to be solved by the invention] In the above-mentioned prior art, the pair of clamping members a,
Since the bag opening e is twisted while being engaged with each other and the bag opening e is completely clamped, when the bag opening e is clamped by the clamping members a and b, the bag opening e will not be closed. In some cases, the bag may not be properly degassed by pressing the bag from the outside. For this reason, it is necessary to first perform deaeration, and after the deaeration is completed, the bag opening e must be clamped by the clamping members a and b. Since degassing and clamping cannot be performed at the same time, the packaging process is time-consuming. In addition, if the bag opening e is disturbed due to the degassing process and is clamped by the clamping members a and b, the clamping positions may become uneven, resulting in insufficient clamping of the bag opening e. There was a problem in that, for example, a part of the bag opening e easily became a protruding piece f and came off, resulting in a subsequent seal failure.

Therefore, the present invention makes it possible to deair the bag while pinching the opening of the bag using a pressure member, which reduces time loss in the packaging process, and allows the opening of the bag to be twisted and sealed effectively. The purpose is to supply packaging equipment for mushrooms and other similar products.

[Means for Solving the Problems] The present invention degasses the bag from the mouth of the bag by pressing it from the outside with a degassing member, which is placed on a conveying member and contains mushrooms and other similar substances. In addition, in a packaging device for mushrooms or similar products, in which the opening of the bag is pinched and twisted between a pair of pinching members, and the twisted part of the bag opening is sealed, at least one of the pinching members is pinched and twisted. A bag clamping protrusion is provided in the clamping part of the pressure member, and when the tip of the bag clamping protrusion comes into contact with the clamping surface of the opposing clamping member, an air gap is formed between each opposing clamping member. is provided, the opening of the bag is clamped by a pair of clamping members via the bag clamping protrusion, and the bag is pressed from the outside by the degassing member,
This is a packaging device for mushrooms and similar products, which is constructed so that the bag is deaerated from pressure members that are separated from each other by the hollow portion.

[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 8 to 11, pre-weighed mushrooms or similar substances 1 are fed from a hopper 2, placed on a supply member 3 that is movably provided below the hopper 2, and then A mushroom or similar substance 1 is stored in a flexible bag 4 made of polyethylene or the like with a bag opening 4a open and supported in front of the bag 3 by the forward and backward movement of the supply member 3, and the mushroom or other similar substance 1 is further stored in the bag 4. The bag 4 is dropped onto the conveying member 5 and moved, and the degassing member 6 is gently pressed to remove the bag 4.
A pair of clamping members 7
After being sandwiched between the tubes a and 7b, the tube is twisted, and the twisted portion is sealed by a pair of heated heating elements 8 and 9 before being transported out.

Next, an example of a device for twisting the opening 4a of the bag 4 will be explained with reference to FIGS. 10 and 11.

A bracket 11 is provided on the base plate 10 facing the opening 4a of the bag 4 placed on the conveying member 5, and a rotating shaft cylinder 13 is connected to the bracket 11 via a bearing 12.
A pin-on gear 14 is mounted on this rotating shaft cylinder 13.
Holding plates 15 of the clamping members 7a and 7b are respectively fixed, and bearings 16 are arranged in parallel with the rotating shaft cylinder 13.
The intermediate shaft 17 is pivotally mounted on the bracket 11 via the
An intermediate gear 18 and a pinion gear 19 that mesh with the pinion gear 14 are fixed to the intermediate shaft 17, and a vertically slidable rack 21 is meshed with the pinion gear 19 via a guide member 20 provided on the bracket 11. , a cylinder 2 fixed to the base plate 10 is attached to the lower end of the rack 21.
Two pistons 22a are connected.

The holding plate 15 has a pair of upper and lower pressing members 7a,
7b is rotatably supported via a pivot 23, and one end side of a pair of links 24 is connected to the base end of each clamping member 7a, 7b by a pivot 25, and the base end of the pair of links 24 is A pivot 27 is attached to the tip of the rod 26 whose side is inserted into the rotating shaft cylinder 13.
The piston 2 of a cylinder 28 is pivotally supported by the bracket 11 at the base end of the rod 26.
It is connected to the tip of 8a via a rotary joint 29.

Then, the rod 26 due to the operation of the cylinder 28
As the piston 28a moves forward, the clamping members 7a, 7b are brought into a closed state around the pivot shaft 25 via the pair of links 24, and as the piston 28a extends, the clamping members 7a, 7b are closed.
is in a closed state, and the opening 4a of the bag 4 is clamped.

Next, when the piston 22a of the cylinder 22 is extended, the rack 21 rises via the guide member 20,
As the pinion gear 19 rotates, this rotational force is sequentially transmitted from the intermediate gear 18 coaxial with the pinion gear 19 to the pinion gear 14, rotating shaft cylinder 13, holding plate 15, and clamping members 7a, 7b, and the opening 4a of the bag 4 is twisted. be done. Thereafter, after a sealing process is performed by the heating elements 8 and 9, the piston 28a retreats to open the clamping members 7a and 7b, and the bag 4 is transported out.
The piston 22a also returns downward.

In the above packaging apparatus, as shown in FIGS. 1 to 3, the pair of clamping members 7a and 7b have a wide clamping member 32 formed at the front end of a flat plate 31 having a hole 30. A bag-clamping protrusion 33 is formed on one side of the clamping part 32 of one clamping member 7a, and a bag-clamping protrusion 34 is formed on the other side of the clamping part 32 of the other clamping member 7b. In the initial state, the pinching portions 32, 32 of the pair of pinching members 7a, 7b are positioned horizontally, and the conveying member 5 is moved between the horizontal pinching portions 32, 32 so as to be placed on the conveying member 5. Opening part 4a of bag 4 that accommodates placed mushrooms and other similar substances 1
is located, and before the opening 4a is disturbed by degassing, the pair of clamping members 7 are moved by the operation of the cylinder 28.
a, 7b are closed, and the mouth portion 4a is sandwiched between the pinching portions 32, 32. In this case, each protrusion 3 is located on both sides of the mouth portion 4a.
3 and 34 between the clamping parts 32 and 32. Next, by operating the cylinder 35, the removing member 6 made of a sponge or the like is lowered to remove the air inside the bag 4. In this case, between the pinching parts 32 and 32, each protrusion 3
There are empty portions 36 having a height of 3 and 34 and a width of t, from which the air inside the bag 4 is effectively removed.
Thereafter, twisting by the operation of the cylinder 26 and sealing by the heating elements 8 and 9 are performed. Therefore, the opening 4a of the bag 4 can be clamped and the bag 4 can be degassed at the same time, reducing time loss in the packaging process. Since the opening portion 4a is attached securely, the opening portion 4a can be securely clamped, and subsequent twisting and sealing can be performed satisfactorily.

FIG. 4 shows a second embodiment, in which one clamping member 7
A bag clamping protrusion 33 is formed in the center of the clamping part 32 of a, and a pair of clamping members 7a, 7b
By closing the mouth part 4 between the pinching parts 32, 32
When a is clamped, the center side of the mouth part 4a is clamped between the clamping parts 32, 32 via the protrusion 33, and the protrusion 32
The air inside the bag 4 is removed from the space having a height and width of , that is, the empty space 36 .

FIG. 5 shows the third embodiment, and the first embodiment shown in FIG.
In addition to the structure of the embodiment, one of the clamping members 7
A screw 37 is screwed into the clamping part 32 of a, located outside the protrusion 33 on one side, and the screwed end of this screw 37 is used as the bag clamping protrusion 37a. to be able to adjust the length of the
Further, a screw 38 is screwed into the other side of the clamping part 32 so as to be located outside the protrusion 34 of the other clamping member 7b, and the threaded end of the screw 38 is connected to the length-adjustable bag clamping protrusion 38a. It is said that Then, by closing the pair of clamping members 7a and 7b, the clamping part 3
When the mouth part 4a is sandwiched between 2 and 32, both sides of the mouth part 4a are squeezed in a zigzag shape by the protrusions 33, 37a and the protrusions 34, 38a, respectively, and the protrusion 3
3, 37a, 34, 38a via the pinching part 32,
The air inside the bag 4 is removed from the space 36 between the bags 32 and 32. In this case, by adjusting the screw insertion degree of the screws 37 and 38, it is possible to ensure that the protrusions 37a and 38a can clamp the bag opening 4a, and with long-term use, the bag clamping protrusion 33, Good clamping force can be obtained even if 34 is worn out.

FIG. 6 shows a fourth embodiment, and in the third embodiment shown in FIG.
Insertion holes 39, 39 are formed into which bag-clamping protrusions 37a, 38a can be inserted, and by closing the pair of clamping members 7a, 7b, the mouth portion 4
A is inserted into the insertion holes 39, 39 and sandwiched in a zigzag pattern, and the distance 36 is maintained by the protrusions 33, 34, so that air can be removed well.

FIG. 7A shows a fifth embodiment, in which recesses 40, 40 into which the protrusions 33, 34 fit when the clamping members 7a, 7b are in the closed state are added to the clamping part 32, 40 in the third embodiment shown in FIG. 32, and the mouth portion 4a is pressed into the recesses 40, 40 and sandwiched in a zigzag shape, and the degassing interval 36 is maintained.

FIG. 7B shows a sixth embodiment of the present invention, in which the bag clamping protrusions 33 and 34 protruding from the clamping part 32 of the clamping member 7a are opposed to the clamping part of the other clamping member 7b. Recesses 40, 40 are formed in 32. In this case, by forming the depth of the recesses 40, 40 to be smaller than the height of the bag-clamping protrusions 33, 34, a hollow part 36 is formed between each clamping part 32 when the bag opening 4a is clamped. be done. In addition, the protrusion 3
3, 34 and the concave portion 40, the bag opening 4a
are pinched and held in a staggered manner, making it possible to improve the pinching condition at the bag opening.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the number and arrangement of the bag-clamping protrusions may be selected as appropriate, and only bag-clamping protrusions whose length can be adjusted using screws may be provided on the pinching member. Further, the screw may be provided on the pinching member 7a side. Further, although a pair of pinching members are shown, three or more may be used. Also, the overall packaging device can of course be adapted to various types.

[Effects of the invention] The present invention deaerates the bag from the mouth of the bag by pressing the bag placed on the conveying member and containing similar substances such as mushrooms from the outside with the degassing member. In a packaging device for mushrooms and other similar products, which consists of pinching and twisting the parts between a pair of pinching members and sealing the twisted part of the bag opening, the pinching pressure of at least one of the pinching members is A bag-clamping protrusion is provided in the bag-clamping protrusion, and when the tip of the bag-clamping protrusion comes into contact with the clamping surface of the opposing clamping member, a hollow portion is provided between each opposing clamping member, and the bag pinching the opening of the bag with a pair of pinching members via the pinching protrusion, and pressing the bag from the outside with the degassing member;
The bag is configured to be deaerated from the pinching members separated from each other by the hollow portion, and the bag can be deaerated while the bag opening is pinched by the pinching members,
It is possible to provide a packaging device for mushrooms and other similar products that can reduce time loss in the packaging process and can effectively twist and seal the opening of the bag.

[Brief explanation of the drawing]

1 to 11 show embodiments of the present invention,
Fig. 1 is a perspective view showing the first embodiment of the present invention;
3 is a partially cutaway front view showing the same operating state, FIG. 4 is a side view showing the second embodiment of the present invention, and FIG. 5 is a third embodiment of the present invention. 6 is a sectional view showing the fourth embodiment of the present invention,
FIG. 7A is a side view showing the fifth embodiment of the present invention, FIG. 7B is a side view showing the sixth embodiment of the present invention, and FIG.
The figure is a plan view of the packaging device to which the present invention is applied, FIG. 9 is a front view of the same, FIG. 10 is a cutaway front view showing a part of the twisting device of FIG. 8, and FIG. 11 is a sectional view of the same. , FIG. 12 is a conventional sectional view. 1... Similar substance such as mushroom, 4... Bag, 4a... Mouth part, 5... Conveying member, 6... Deaeration member, 7a, 7
b...Pinching member, 33, 34, 37a, 38d...
...Protrusion for holding bag, 36...Empty part.

Claims (1)

[Scope of utility model registration request] A bag placed on a conveying member and containing mushrooms or other similar substances is pressed from the outside by a degassing member to deair the bag from its mouth, and the mouth of the bag is pinched by a pair of pinching members. In a packaging device for similar products such as mushrooms, which is constructed by attaching a bag and twisting it, and sealing the twisted part of the bag opening, a bag-clamping protrusion is provided in the clamping part of at least one clamping member, and When the tip of the bag clamping protrusion comes into contact with the clamping surface of the opposing clamping member, an air space is provided between each of the opposing clamping members, and the pair of clamps are connected via the bag clamping protrusion. The opening of the bag is pinched by the pressure member, the bag is pressed from the outside by the deaeration member, and the bag is deaerated from the pressure members separated from each other by the hollow part. A packaging device for mushrooms and other similar products.