JPH0242566Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a method for packaging mushrooms, etc., especially Enoki mushrooms, by easily opening and closing the opening of the bag after deaerating the air inside the bag. This invention relates to a screw-in bag packaging device for mushrooms, etc., which can securely pinch and wrap mushrooms and the like.

[Prior Art] This type of packaging device is generally known, for example, from Japanese Utility Model Application Publication No. 53-25872, in which a bag containing Enoki mushrooms is subjected to soft pressure to eliminate air inside the bag. After the bag is held in place by twisting the rim of the opening to close it, the bag is welded and sealed using a heating element or the like.

[Problem to be solved by the invention] By the way, in the above-mentioned conventional technology, a pair of bag pressers are disposed above and below the bag opening as a mechanism for pinching and twisting the opening of the bag. Since the bag opening part is held and twisted by the bag clamping element, the end of the bag, that is, the bag opening part, is twisted while being held flat, and the end of the bag opening part of the bag becomes flat. It becomes a form that spreads out and tends to be bulky,
Since it is heat sealed in that state, it tends to look bad.

In consideration of this point, Utility Model No. 52-168751
As shown in the publication, a structure is known in which when the bag opening is gripped by four rotating claws that open and close toward the center, they rotate and twist the bag opening. The bag surface may be slippery between the four claws, making the clamping unreliable, and as a result, the bag opening tends to be insufficiently screwed in, and as it is heat-sealed in that state, the edges of the bag opening may There is an aspect that the packaging style of the parts tends to be poor.

[Means for Solving the Problems] The purpose of the present invention is to solve these inconveniences, and referring to the drawings, the gist is that mushrooms, etc., are placed in a flexible bag 1 made of polyethylene or the like. The bag 1 is stuffed with the bag 1, the air inside the bag 1 is removed, and the outer surface of the bag opening 1a of the bag 1 is pinched and the bag opening 1a is twisted for packaging.
A drive means 31 is disposed on the bag opening 1a side and fixed to the support bracket 7, and a drive means 31 is connected to the drive means 31 so that it can move forward and backward toward the bag 1 by the operation of the drive means 31. Advance and retreat rod 33
The bag 1 is connected to the bag 1 through a link mechanism 2 connected to the reciprocating rod 33.
Protrusions 4 that fit into each other are provided on the bag clamping part 40 so that the bag opening 1a can be squeezed by the bag clamping part 40 from the outer surface of the bag opening 1a toward the center thereof.
1 and a recess 42 to clamp the bag opening 1a, another drive means 31 fixed to the support bracket 7, and another drive means 23 that move the reciprocating rod 33. A screw-in bag packaging device for mushrooms, etc. is characterized by comprising a screw-in mechanism 4 that rotates to screw in each of the clamping claws 3.

[Embodiment] An embodiment of this invention will be described below with reference to the accompanying drawings.

The bag 1 filled with mushrooms etc. a of this embodiment has a bag mounting board 5
The bag 1 is placed on the bag 1 and transferred by a transfer mechanism (not shown), and is positioned opposite the clamping claws 3, and the air inside the bag 1 is removed by a degassing mechanism (not shown).

A support bracket 7 is erected on the base plate 6 opposite to the bag opening 1a, and a link mechanism 2 and a screw mechanism 4 are disposed on the support bracket 7.

This screwing mechanism 4 has a bearing 8 in a direction facing the bag opening 1a at the upper part of the support bracket 7.
a, 8b, a nut 9, and a bearing retainer 10 to horizontally install a rotary shaft cylinder 11 so as to be freely rotatable, and a pinion gear 13 is fixed to this rotary shaft cylinder 11 with a key 12, and is parallel to the rotary shaft cylinder 11. The intermediate shaft 14 is horizontally installed rotatably by bearings 15a and 15b, a nut 16, and the bearing holder 10, and an intermediate gear 17 meshing with the pinion gear 13 and a drive pinion 18 are attached to the intermediate shaft 14. is fixed by a key 19, and a drive rack 21 that slides vertically and guided by a guide plate 20 to the drive pinion 18 is fixed to the bottom surface of the support bracket 7 by a bolt 22. 23 In this case, on the cylinder rod 23a of the rotating cylinder,
Pivotally connected via a joint 24, and a stopper bolt 25 that abuts the upper surface of the base plate 6 is attached to the joint 24, and the drive rack 21, drive pinion 18, intermediate gear 17, and pinion gear 13 are operated by the rotation cylinder 23. Rotating shaft cylinder 11 via
It is provided so that it can be screwed and rotated in forward and reverse directions.

In addition, a case is shown in which there are four clamping claws 3, and the link mechanism 2 for expanding and contracting the clamping claws 3 is connected to the rotating shaft cylinder 11.
A cross-shaped support rod 26 as shown in FIG. The bag mouth part 1a is pivotally connected to be able to expand and contract from the periphery toward the center, and on the other hand, a driving means 31 is provided horizontally on the mounting plate 30 at the rear of the support bracket 7, and in this case, a cylinder for expanding and contracting clamping is installed horizontally, and this cylinder rod 31a through the rotary joint 32
3 are connected, and this reciprocating rod 33 is connected to the rotating shaft cylinder 11.
A cross-shaped movable rod 34 is connected to the tip of the reciprocating rod 33, and a pair of operating links 35 are connected to each of the four tips of the movable rod 34 by a fixing pin 36. The four supporting links 2 are provided at the distal end of the operating link 35 to pivot and protrude.
9 are pivotally connected by a connecting pin 37, and adjustment bolts 38 are attached to each tip of the support link 29.
The clamping claw 3 is fixed so as to be able to adjust its position in the radial direction of the bag opening, and by the operation of the driving means 31, the rod is moved back and forth through the rotary joint 32 so as not to interfere with the rotation of the rotary shaft cylinder 11. 33 is moved forward and backward, and the movement of the forward and backward rod 33 moves the moving rod 34 forward and backward, thereby causing the clamping claw 3 to expand and contract around the pivot pin 28 via the vertical operation link 35. This is what I did.

Further, heat seal plates 39a and 39b are disposed above and below the bag opening 1a and are moved toward and away from each other by a heat seal mechanism (not shown).

Further, the cross-sectional shape of the bag clamping part 40 of the clamping claw 3 of this embodiment is formed in a substantially V-shape, and the bag clamping part 4
A protrusion 41 and a recess 42 are formed to face each other on each of the opposing slopes of the bag 0, so that when the bag opening 1a is clamped, the protrusion 40 fits into the recess 42 of the adjacent clamping claw 3. The bag opening 1a of the bag 1 is opened via the link mechanism 2 connected to the advancing/retracting rod 33.
From the outer surface toward the center, the bag opening 1a is narrowed by the bag clamping part 40 of the clamping claw 3, and the bag clamping part 40
A protrusion 41 and a recess 42 that fit into each other are provided in the
The bag opening 1a is sandwiched between the two.

Since this embodiment has the above configuration, when the bag 1 filled with mushrooms etc. a is placed on the bag mounting plate 5 and transferred, the air inside the bag 1 is removed by a degassing mechanism (not shown). .

Then, the drive means 31 is activated to move the forward/backward rod 3.
3, the cross-shaped moving rod 34 retreats in the direction away from the bag opening 1a, and as the moving rod 34 retreats, each clamping claw 3 moves around the pivot pin 28 via the operating link 35. The bag opening 1a is compressed and closed from the periphery toward the center, and the bag opening 1a is squeezed by the bag clamping part 40 of the clamping claw 3 from the outer surface of the bag opening 1a toward the center. The outer surface of the bag opening 1a is partially recessed by the protrusions 41 and recesses 42 provided on the clamping part 40 that fit into each other, and the bag is clamped from the periphery like a hook.

Then, the outer surface of the bag opening 1a is clamped as shown in FIG.
1 rises, and as the drive rack 21 rises, the pinion gear 13 rotates via the drive pinion 18 and the intermediate gear 17, and the rotation of the pinion gear 13 rotates the rotating shaft cylinder 11. Each clamping claw 3 is connected via the support rod 26 and the support link 29.
will rotate.

By this rotation of the clamping claws 3, the bag opening 1a is squeezed as if squeezing the towel.

The heat-sealing plates 39a and 39b move close to each other by the aforementioned heat-sealing mechanism (not shown) to sandwich and weld the bag opening 1a, thereby sealing the bag opening 1a.

When the sealing of the bag 1 is completed, the heat seal plate 39
a and 39b move away from each other, and at the same time, the driving means 31 operates to advance the reciprocating rod 33, and the movable rod 34 moves forward, and the respective clamping claws 3 are moved around the pivot pin 28 via the operating link 35. expands from the center toward the periphery, and the other drive means 23 operates to lower the drive rack 21.
The rotating shaft cylinder 11 rotates in reverse through each gear train and stops at the original position.

The packaged bag 1 is then automatically taken out by a take-out mechanism (not shown).

By repeating this operation, the bags 1 will be twisted and wrapped one after another.

As described above, in this embodiment, when the drive means 31 operates to operate the forward/backward rod 33 to operate the link mechanism 2, the clamping claws 3, which are made up of at least three pieces, expand and contract due to the operation of the link mechanism 2. The bag opening 1a extends from the outer surface of the bag opening 1a toward its center.
a is squeezed by the bag clamping part 40 of the clamping claw 3, that is, the outer surface of the bag mouth part 1a is pinched while being squeezed by the closing and closing movement from the periphery to the center, and this narrowing Due to the pinching behavior, the bag opening 1a
The bag opening 1a can be securely clamped in the compressed state, and the protrusion 41 and recess 42 provided on the bag clamping part 40 and that fit together allow the bag opening 1a to be securely clamped.
The outer surface can be clamped from the periphery, slipping between the outer surface of the bag 1 and the bag clamping part 40 can be suppressed, the bag 1 can be securely clamped by the bag clamping part 40, and the screwing mechanism 4 The clamping claw 3 is screwed and rotated by the operation of the other driving means 23, and the bag clamping portion 40 of the clamping claw 3 is rotated.
The bag opening 1a is formed by the protrusion 41 and the recess 42 provided in the bag opening 1a.
Since the bag surface is partially recessed and firmly clamped, the twisting action is reliably performed, and this twisting part is heat-sealed to improve the packaging form and the bag opening 1a. can be embarrassing.

In this regard, Publication of Utility Model Publication No. 10897/1989 and Publication of Utility Model Publication No.
In the case of Publication No. 25872, etc., the wrapping paper or bag is held flat by a pair of upper and lower holding members and twisted, so the ends of the wrapping paper or bag are spread out into a flat state. However, in the case of the present invention, it is possible to suppress the expansion of the end portion of the bag 1 that is not twisted due to the above-mentioned narrowing and pinching operation, and the end portion can be prevented from being bulky, making it possible to improve the packaging form. 1972-
In the case of Publication No. 168751, etc., the bag surface easily slips on the four claw surfaces, making the clamping unreliable, and as a result, the bag opening may not be fully screwed in, but the present invention In this case, the outer surface of the bag opening 1a can be partially recessed by the protrusions 41 and recesses 42 provided on the bag clamping section 40 that fit into each other, and the bag can be clamped from the periphery. The bag 1 can be securely clamped by the bag clamping part 40 by suppressing slippage between the bag clamping part 40 and the bag clamping part 40 of the clamping claw 3.
The bag opening 1a is formed by the protrusion 41 and the recess 42 provided in the bag opening 1a.
Since the bag surface is partially recessed and firmly clamped, the twisting action is reliably performed, and the packaging form is improved to the extent that the bag opening 1a can be closed well.

[Effects of the invention] As described above, the present invention includes a driving means disposed on the bag opening side of the bag and fixed to the support bracket, and a driving means connected to the driving means and directed toward the bag by the operation of the driving means. It consists of at least three forward and backward movement rods that can be moved forward and backward, and the bag is clamped from the outer surface of the bag opening toward the center of the bag through a link mechanism connected to the movement rod. a clamping claw that can be squeezed at the part and can clamp the bag opening by a mutually fitting protrusion and a recess provided in the bag clamping part; and another driving means fixed to the support bracket. , and a screw-in mechanism that rotates the advancing and retracting rods by operating the other driving means to screw and rotate each of the clamping claws,
When the drive means operates the reciprocating rod to operate the link mechanism, the link mechanism causes at least three clamping claws to expand and contract, moving from the outer surface of the bag opening toward the center of the bag opening. The outer surface of the bag opening is squeezed by the bag clamping part of the clamping claw, that is, by the contraction and closing operation that does not go from the periphery to the center, the bag opening is pinched while being squeezed. Due to the bag opening behavior, the bag can be securely clamped with the bag opening closed, and the protrusion and recess that fit together provided on the bag clamping part allow the outer surface of the bag opening to be partially covered. It can be recessed and clamped from the periphery, the bag can be prevented from slipping between the outer surface of the bag and the bag clamping part, the bag can be securely clamped by the bag clamping part, and the bag clamping part has a screw-in mechanism. The clamping claw is screwed and rotated by the operation of the other driving means, and the bag surface at the bag opening is partially depressed by the protrusion and recess provided in the bag clamping part of the clamping claw. Since it is tightly clamped, the twisting action is performed reliably, and this twisting part is heat-sealed to easily and reliably clamp the bag opening and securely twist it to create a good shape. can be packaged.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan sectional view, FIG. 3 is a sectional view taken along the line A-A, and FIG. 4 is a sectional view taken along the line B-B. FIG. 5 is a partial front view. a...Mushrooms, etc., 1...Bag, 1a...Bag opening, 2
... link mechanism, 3 ... clamping claw, 4 ... screwing mechanism, 7 ... support bracket, 23 ... other driving means, 31 ... driving means, 33 ... advancement/retraction rod, 4
0...Bag clamping part, 41...Protrusion, 42...Recessed part.

Claims (1)

[Scope of utility model registration request] Mushrooms, etc. are stuffed into a flexible bag made of polyethylene, etc., the air inside the bag is eliminated, and the outer surface of the bag opening is pinched and the bag opening is twisted to wrap the bag. a driving means disposed on the bag opening side of the bag and fixed to a support bracket; and a driving means connected to the driving means so that the bag can move forward and backward toward the bag by actuation of the driving means. The bag opening can be squeezed by the bag clamping part from the outer surface of the bag opening of the bag toward the center thereof through a link mechanism connected to at least three advancing and retracting rods. a clamping claw capable of clamping the bag opening by a protrusion and a recess that are provided on the bag clamping part and that fit into each other; another driving means fixed to the support bracket; A screw-in packaging device for bags of mushrooms, etc., comprising a screw-in mechanism that rotates the advancing and retracting rods by operating means to screw in and rotate each of the clamping claws.