JPH0224724Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is for packaging mushrooms, etc., especially Enoki mushrooms, by deaerating the air inside the bag and then clamping the bag opening. This invention relates to a bag screw-wrapping device for mushrooms, etc. that performs screw-wrapping.

[Conventional technology]

Generally, this kind of packaging equipment uses soft pressure to remove the air inside the bag containing the Enoki mushrooms, and then closes the opening of the bag by twisting it, and then using a heating element, etc. The applicant of the present application has proposed a welding and sealing method in Japanese Utility Model Application Publication No. 53-25872.

[Problem that the invention attempts to solve]

By the way, in the above-mentioned conventional technology, a pair of bag clamp indenters are disposed above and below the bag opening as a mechanism for clamping and twisting the opening of the bag, and the bag opening is tightened by the bag clamp indenters. Because the bag is held and twisted, the end of the bag, that is, the bag opening, is twisted while being held on a flat surface, and the end of the bag opening becomes flattened and bulky. Easy,
Because it is heat-sealed in that state, it may look bad, and depending on the material of the bag, it may be slippery when pinching and twisting the bag with the bag sandwich indenter. It may not be possible to hold the bag opening properly.

[Means for solving problems]

The purpose of this invention is to solve the above-mentioned problems, and its gist is to fill a flexible bag made of polyethylene or the like with mushrooms, etc., eliminate the air inside the bag, The packaging device is configured to clamp onto the outer surface of the bag opening of a bag and twist the bag opening for packaging, and the drive includes a reciprocating rod that is movable forward and backward toward the bag opening side of the bag. means, at least three or more clamping claws that narrow and clamp the bag opening from the outer surface of the bag opening toward the center of the bag via a link mechanism connected to the reciprocating rod of the driving means; and the support. Another drive means is fixed to the bracket and is provided to reciprocate the drive rack, and a drive pinion that meshes with the drive rack of this drive means, and moves the reciprocating rod in conjunction with the rotation of the drive pinion. rotate,
a screw-in mechanism for screwing in and rotating the clamping claw, the cross-sectional shape of the bag clamping part of the clamping claw is formed into a substantially V-shape, and each of the bag clamping parts faces each other. A protrusion and a recess are formed opposite to each other on the slope of the bag, and when the bag opening is clamped, the protrusion formed in the bag clamping part of the clamping claw causes an unevenness in the concave part formed in the bag clamping part of the clamping claw. A bag screw-in packaging device for mushrooms, etc. is characterized in that it is configured to be inserted into a bag.

〔Example〕

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 is placed on the bag mounting plate 7.
The bag 1 is placed on the bag 1 and transferred by a transfer mechanism (not shown) until it faces the clamping claw 3, and the air inside the bag 1 is removed by a degassing mechanism (not shown).

A support bracket 9 is erected on the base plate 8 opposite to the bag opening 1a, and a link mechanism 2 and a screw mechanism 10 are disposed on the support bracket 9.

This screwing mechanism 10 has a bearing 1 in a direction facing the bag opening 1a at the upper part of the support bracket 9.
1a, 11b, nut 12, bearing retainer 13
A rotary shaft cylinder 14 is installed horizontally so as to be rotatable, and a pinion gear 1 is connected to the rotary shaft cylinder 14 by a key 15.
6 is fixed, and the intermediate shaft 1 is parallel to the rotating shaft cylinder 14.
7 is horizontally installed rotatably by bearings 18a, 18b, nuts 19, and the bearing holder 13, and an intermediate gear 20 and a drive pinion 21 that mesh with the pinion gear 16 are attached to the intermediate shaft 17 using a key 22. Another drive means 2 includes a drive rack 24 which is fixed to the bottom surface of the support bracket 9 by bolts 25 and is guided by a guide plate 23 to the drive pinion 21 to move in the vertical direction.
6 In this case, the cylinder rod 26 of the rotating cylinder
A is pivotally connected via a joint 27, and a stopper bolt 28 that contacts the upper surface of the base plate 8 is attached to the joint 27, and the drive rack 24, drive pinion 21, and intermediate gear 20 are driven by the operation of the other drive means 26. , the rotary shaft cylinder 14 is screwed and rotated in forward and reverse directions via a pinion gear 16.

Further, 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 14.
A cross-shaped support rod 29 is fixed to the tip of the support rod 29 with a key 30, and the base of the support link 32 is attached to the four tips of the support rod 29 by pivot pins 31, respectively, around the bag opening 1a. The drive means 34 is mounted horizontally on the mounting plate 33 at the rear of the support bracket 9, and in this case, a cylinder for expansion and contraction is installed horizontally, and a rotary joint 35 is attached to the cylinder rod 34a. The moving rod 36 is inserted through the inner hole of the rotary shaft cylinder 14, and the moving rod 37, which is also cross-shaped, is connected to the tip of the moving rod 36. A pair of actuating links 38 are pivotally connected and protruding from each of the distal ends of the actuating links 38 by means of pivot pins 39, and the actuating links 38
The middle of the four support links 32 is pivotally connected to the tip of the support link 32 by a connecting pin 40, and the tip of each of the support links 32 is connected with an adjusting bolt 41 to a position in the radial direction of the bag opening. The clamping claw 3 is fixed freely, and the forward/backward rod 36 is moved back and forth through the rotary joint 35 by the operation of the driving means 34 so as not to interfere with the rotation of the rotating shaft cylinder 14.
The movable rod 37 is moved forward and backward by the movement of the movable rod 37, thereby causing the clamping pawl 3 to expand and contract around the pivot pin 31 via the operating link 38.

Furthermore, heat seal plates 42a and 42b which are moved away from each other by a heat seal mechanism (not shown) are disposed above and below the bag opening 1a.

Further, the protrusion 5 of this embodiment is formed on the slope 4a of the bag clamping part 4 by protruding and screwing a set bolt, and is formed on the slope 4b of the bag clamping part 4 of the adjacent clamping claw 3 opposite to this slope 4a. A groove-shaped recess 6 is formed, and the arrangement of the protrusion 5 and the recess 6 is such that the clamping claw 3 has the protrusion 5 on both sides and the clamping claw 3 has the recess 6 on both sides. It's summery.

Since this embodiment has the above-mentioned configuration, when the bag 1 filled with mushrooms etc. a is placed on the bag mounting plate 7 and transferred, the air inside the bag 1 is removed by a degassing mechanism (not shown). .

Then, the drive means 34 is activated to move the forward/backward rod 36.
As a result, the cross-shaped moving rod 37 retreats in a direction away from the bag opening 1a, and as the moving rod 37 retreats, each clamping claw 3 is moved around the pivot pin 31 via the operating link 36. It contracts and closes from the periphery of the bag opening 1a toward the center, and the bag clamping part 4 clamps the outer surface of the bag opening 1a from the periphery like a hook.

At this time, since the cross-sectional shape of the bag clamping part 4 of each clamping claw 3 is formed in a substantially V-shape, the opposing slopes 4a and 4b are in close contact with each other as shown in FIG. At a certain time, the protrusion 5 of the slope 4a
It fits into the recess 6 of b and securely clamps the bag opening 1a.

Then, the outer surface of the bag opening 1a is clamped as shown in FIG.
4 rises, and as the drive rack 24 rises, the pinion gear 16 rotates via the drive pinion 21 and the intermediate gear 20, and the rotation of the pinion gear 16 rotates the rotating shaft cylinder 14. Each clamping pawl 3 is attached via the support rod 29 and the support link 32.
will rotate.

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

Then, the heat sealing plates 42a and 42b move close to each other by the aforementioned heat sealing mechanism (not shown) to sandwich and clamp the bag opening 1a, thereby sealing the bag opening 1a.

When the sealing of the bag is completed, the heat seal plate 42a,
42b move away from each other, and at the same time the driving means 3
4 is activated, the advance/retreat rod 36 moves forward, and the moving rod 3
7 moves forward and connects the pivot pin 3 via the actuating link 38.
1 as the center, each of the clamping claws 3 expands from the center toward the periphery, and the other driving means 26
is activated, the drive rack 24 moves downward, and the rotary shaft cylinder 14 rotates in the opposite direction via 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 are sequentially twisted and wrapped.

As mentioned above, this invention is based on the advancement/retraction rod 36 provided so as to be able to move forward and backward toward the bag opening 1a side of the bag 1.
and a link mechanism 2 connected to a reciprocating rod 36 of the driving means 34, which narrows and clamps the bag opening 1a of the bag 1 from the outer surface of the bag opening 1a toward its center. three or more clamping claws 3; another drive means 26 which is fixed to the support bracket 9 and is capable of reciprocating the drive rack 24; and the drive rack 24 of the drive means 26. The screwing mechanism 10 includes a drive pinion 21 in mesh with each other, rotates the reciprocating rod 36 in conjunction with the rotation of the drive pinion 21, and screws and rotates the clamping claw 3. The cross-sectional shape of the bag clamping part 4 of No. 3 is formed into a substantially V-shape, and a protrusion 5 and a recess 6 are formed facing each other on each slope 4a, 4b of the bag clamping part 4 facing each other, When the bag mouth part 1a is clamped, the protrusion 5 formed on the bag clamping part 4 of the clamping claw 3 is attached to the clamping claw 3.
Since the bag is configured to fit into the concavity 6 formed in the bag clamping part 4, when the drive means 34 operates to operate the advancing/retracting rod 36 and the link mechanism 2 is operated, the clamping claws 3 consisting of at least three expands and contracts, and is clamped from the periphery of the bag opening 1a toward the center. In other words, the outer surface of the bag opening 1a is narrowed and clamped by the contraction and closing movement from the periphery to the center. This narrowing clamping behavior allows the bag opening 1a to be firmly and securely clamped, and the clamping claw 3 is connected to the other drive means 26, the drive rack 24, and the drive pinion 21. The bag opening 1 is screwed in and rotated by the action of , and the bag opening 1 is heat-sealed.

In this regard, Publication No. 10897 of 1983 and Special Publication No. 10897 of 1983
In the case of Publication No. 36997, since the wrapping paper is held flat by a pair of upper and lower clamping members and twisted, the ends of the wrapping paper are spread out in a flat state and are bulky. In this case, the above-mentioned pruning and clamping operation can suppress the expansion of the end portion of the bag 1 that is not twisted, and the end portion can be prevented from being bulky, resulting in a good packaging form.

In particular, the bag clamping part 4 of the clamping claw 3 has a substantially V-shaped cross-sectional shape, and a protrusion 5 and a recess 6 are formed on each of the mutually opposing slopes 4a and 4b of the bag clamping part 4. are formed facing each other, and the grooves are formed so that when the bag opening part 1a is clamped, the protrusion 5 fits into the recess 6 of the adjacent clamping claw 3, so that the bag clamping part 4 of the clamping claw 3 By making the cross-sectional shape substantially V-shaped, each bag clamping part 4 tends to lean toward the center, thereby stabilizing the twisting operation after clamping the end of the bag opening part 1a. This makes it possible to reduce the bulk of the part that is screwed into the bag from the end of the packaged bag 1, making it possible to improve the packaging form.

In addition, by forming protrusions 5 and recesses 6 on the sloped portion of the bag clamping part 4 to form the clamping claws 3 that can be fitted into the concavities and convexities, it is possible to prevent slipping when twisting the end of the bag opening part 1a. can increase the effectiveness of

[Effect of idea]

As described above, according to the present invention, the outer surface of the bag is narrowed and clamped by at least three clamping claws that squeeze and clamp the bag opening from the outer surface of the bag opening toward the center. Due to this clamping behavior, it is possible to suppress the spread of the end of the bag opening, and it is possible to improve the packaging form.

It is also equipped with a screw-in mechanism that screws in and rotates the clamping claw.
The cross-sectional shape of the bag clamping part of the clamping claw is formed into a substantially V-shape, and the bag clamping part has a protrusion and a recess formed opposite to each other on each slope facing each other, and the bag opening part is When the bag is clamped, the protrusion formed on the bag clamping part of the clamping claw fits into the recess formed in the bag clamping part of the clamping claw, thereby twisting the end of the bag opening part. This has the effect of increasing the anti-slip effect and making it possible to stably twist the opening of the bag.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a plan cross-sectional view, Fig. 3 is a cross-sectional view taken along line A-A, and Fig.4 is a cross-sectional view taken along line B-B. Arrow view, 5th
The figure is a partial front view, Figure 6 is a front sectional view of the main part, and Figure 7 is a front view of the main part.
The figure is a perspective view of main parts. a...Mushrooms, etc., 1...Bag, 1a...Bag opening, 2
... link mechanism, 3 ... clamping claw, 4 ... bag clamping part, 4a, 4b ... slope, 5 ... protrusion, 6 ... recess, 9 ... support bracket, 10 ... screwing mechanism ,
21... Drive pinion, 24... Drive rack, 2
6...Other driving means, 34...Driving means, 36...
…Advance and retreat.

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 removed, and the bag is clamped to the outside of the bag opening and the bag opening is twisted to package the bag. In this packaging device, the bag opening of the bag is moved through a driving means provided with a reciprocating rod that is movable forward and backward toward the bag opening side of the bag, and a link mechanism connected to the retracting rod of the driving means. At least three clamping claws that squeeze and clamp the bag opening from the outer surface toward the center; another drive means fixed to the support bracket and provided with a drive rack capable of reciprocating; a screwing mechanism that includes a drive pinion that meshes with the drive rack of the means, rotates the advancing and retracting rod in conjunction with the rotation of the drive pinion, and screws and rotates the clamping pawl; The cross-sectional shape of the bag clamping part of the bag hook is formed into a substantially V-shape, and a protrusion and a recess are formed facing each other on the slopes of the bag clamping part facing each other, so that the bag mouth part can be clamped. A bag screw-in packaging for mushrooms, etc., characterized in that the protrusion formed on the bag hooking portion of the hooking claw is configured to fit into the concave portion formed in the bag hooking portion of the hooking claw. Device.