JPH03176324A - Apparatus for wrapping vegetable - Google Patents

Abstract

PURPOSE:To securely heat-seal and fuse an unnecessary film part as well as prevent the unnecessary film part from fusing to a heater and scattering by providing a film supporting mechanism having freely retreatable supporting bodies for holding a film bundled part from both sides and differentiating the supporting bodies on both sides with respect to opening/closing operation of a film bundling mechanism. CONSTITUTION:An upper part of a transparent film F is bundled in a rod shape as well as a lower part of the rod-shaped bundled part is heat-sealed by front and rear heaters 20 and an unnecessary film part F1 is fused. Then a piston rod of a cylinder device is shrunk, front and rear sliding bodies 12,16 are slid outward in a direction reverse to a direction that the transparent film F is bundled and respective bundled recesses are gradually opened. At this time front and rear supporting bodies 27 holding the bundled part of the unnecessary film part F1 which has been fused are not interlocked with sliding outward but continuously hold the unnecessary film part F1 by force applied with a compressed coil spring 28. Therefore the heaters 20 can be easily separated from the unnecessary film part F1 and fusing to the heaters 20 and scattering outward of the film can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a vegetable packaging device, for example, one that automatically wraps head vegetables such as cabbage, Chinese cabbage, and lettuce with a film.

(Prior Art) Conventionally, this type of vegetable packaging device has a plate-shaped support for supporting a film, which is provided with a guide hole through which the head vegetables are lowered, and a vegetable receiver is placed in the lower part of the guide hole. A structure in which a film binding mechanism is provided in the lower part of the support body to wrap the head vegetables on the vegetable receiver with a film and bind the same, and a heater is provided to seal the binding part of the film. There is something.

Then, when a film is expanded and supported on the support with the guide hole closed, and head vegetables are fed into the guide hole through this film, the head vegetables pull out the film on the support by their own weight. The vegetable receiver is lowered to a predetermined position, and the film binding mechanism is activated so that the film wrapping the head vegetables is wrapped around the top of the head vegetables. The bundled portion is sealed by a heater.

(Problems to be Solved by the Invention) In the above structure, the film on the vegetable receiver is collected and bound on top of the head vegetables by the film binding mechanism, and a predetermined position of this binding part is heat-sealed by a heater. At the same time, since the unnecessary film part is fused and cut, the unnecessary film part is easily welded to the heater, and this unnecessary film part is moved by the separating operation of the heater while remaining adhered to the heater, and this unnecessary film part can be placed in unexpected places. When the bundled part is heat-sealed and melted with a heater, the heat-sealing may become unreliable if the bundled part is not tied together sufficiently. In addition, there is a problem in that unnecessary film portions are likely to be fused and cut in an uncertain manner.

Therefore, the present invention has been made in view of these problems, and it is possible to sufficiently bind the binding part of the film packaging head vegetables, and to remove unnecessary film parts after heat-sealing and fusing the binding part. By making it possible to keep holding the film temporarily, it is possible to reliably heat-seal and melt-cut unnecessary film parts.
Another object of the present invention is to provide a vegetable packaging device that can reliably prevent unnecessary film parts from welding to a heater and from scattering.

[Structure of the invention]

(Means for Solving the Problem) The vegetable packaging device of the invention of claim 1 has a guide hole for guiding the descent of the head vegetables, and a support body for supporting a film developed so as to close the guide hole. , a vegetable receiver which is provided to be movable up and down with respect to the lower part of the guide hole of the support body and receives the head-heading vegetables that are lowered while pulling out the film from the guide hole through the film; a film binding mechanism that can be opened and closed to gather the films from the front, back, left and right directions, cover the head vegetables, bind them above the head vegetables, and heat seal them; The device is equipped with a film support mechanism that has support bodies that can move forward and backward to sandwich the binding portion from both sides, and that differentially moves the support bodies on both sides with respect to the opening/closing operation of the film binding mechanism.

The vegetable packaging device of the invention according to claim 2 is the device according to claim 1, wherein the film support mechanism has a cylinder fixed at a position opposite to the film binding mechanism, and is provided so as to be movable in the cylinders on both sides of the cylinder. A support body is provided at the tip of the piston rod, and a spring is provided in the cylinder to constantly project the support body in opposing directions via the piston rod.

(Function) The vegetable packaging device of the invention according to claim 1 raises the vegetable receiver and disposes the vegetable receiver directly below the guide hole of the support, and also includes the guide hole in the upper surface of the support. The film is expanded and supported so as to be occluded.

Next, when the head vegetables are supplied to the guide hole of the support through the film, the head vegetables are lowered from the guide hole onto the vegetable receiver together with the film and are received therein.

Next, when the vegetable receiver is lowered, the film between the vegetable receiver and the head vegetables is supported by the head vegetables and pulled out from the guide hole as the head vegetables lower, lowering the head vegetables to a predetermined position. At the same time, the descent of the vegetable receptor is stopped.

Then, when the film binding mechanism is operated in the closing direction,
This film bundling mechanism collects the film from the front, back, left and right directions, and the film wraps the head vegetables according to its shape. Then, this clamping part is bound from the front, rear, left and right directions by a film binding mechanism, and this binding part is heat-sealed. Thereby, the heat sealing of the binding portion and the cutting of the unnecessary film portion are reliably performed.

Next, when the head vegetables are wrapped with the film, the vegetable receiver is activated again and the vegetable receiver is further lowered to stop the packaged vegetables from descending to the unloading section, while the film binding mechanism is activated in the opening direction. Then, the film binding mechanism is gradually opened and the heater is also moved away, but the film binding mechanism is not interlocked with this, and the fused and cut unnecessary film portion continues to be held by the support of the film support mechanism. . Then, when the film binding mechanism is opened by a predetermined amount, the supports on both sides of the film support mechanism are differentially moved and gradually separated, and the unnecessary film portion is released from being held. As a result, the unnecessary film portion is reliably separated from the heater, and the unnecessary film portion is dropped to a fixed position without being scattered.

Further, in the vegetable packaging device of the invention of claim 2, when the film binding mechanism is closed to a predetermined position in the operation of the device of the invention of claim 1, the supports of the front and rear film support mechanisms are moved through the film. However, since the film binding mechanism continues to close the guide hole directly below, the film binding mechanism compresses the coil spring of the film support mechanism and moves the piston through this cylinder. The closing operation is further carried out along the rod and directly below the guide hole. Therefore, the front and rear parts of the film are first elastically clamped from both sides by the supports of the film support mechanism, and then the lower portions of the clamping parts are differentially bundled from the front, rear, left and right directions by the film binding mechanism.

Next, even when the film binding mechanism is opened, the front and rear supports that clamp the unnecessary film portion are not immediately moved, and the front and rear supports continue to clamp the unnecessary film portion due to the biasing force of the compressed spring. do. and,
As the film binding mechanism is opened by a predetermined amount, each spring is gradually restored, each piston rod is interlocked and moved outward, and the supports at each tip are separated, and the unnecessary film portion is clamped. is released, and this unnecessary film portion is dropped to a fixed position.

(Example) Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a vegetable packaging device, and this vegetable packaging device 1 has main pillars 2 erected at predetermined intervals in the front, rear, left, and right directions. A support column 3 is fixed horizontally between each of the sections, a support top plate 4 as a support is fixed horizontally between the upper ends of the left and right columns 3, and a support top plate 4 as a support is fixed horizontally between the lower ends of the left and right columns 3. A mounting board 5 is fixed thereto, and a support board 6 is fixed horizontally between the upper ends of the left and right columns 3.

Next, the support top plate 4 has a support surface portion 7 on its upper surface that supports the transparent film F for packaging vegetables, and this support surface portion 7 has a shape such as a mesh that reduces the contact surface with the transparent film F. At the same time, a circular guide hole 8 for lowering vegetables is vertically penetrated substantially in the center of the support top plate 4.

In addition, a pair of guide rails 10 are fixed in parallel in the front-rear direction at the lower portions of the left and right sides of the support top plate 4 with the guide holes 8 interposed in the intermediate portions, and guides 11 in the front and rear directions are attached to the left and right guide rails 1G. One slide body 12 is attached to the guide hole 8 at one side in the front-back direction so as to be able to move forward and backward in the front-back direction. This one slide body 12
is formed of a plate-like member and has a substantially rectangular shape in plan view, and a focusing recess 13 serving as a focusing portion is formed in a substantially semicircular shape in the middle of the inner end toward the bottom of the guide hole 8. .

Further, a pair of guide rails 14 are fixed to the upper left and right sides of the support board 6 in parallel in the front-rear direction, and the other slide body 16 is attached to the left and right guide rails 14 via the front-rear, right-left and right-hand guides 15. At the other side, it is attached to the guide hole 8 so as to be freely movable forward and backward. The other slide body 16 is formed of a plate-like member and has a substantially rectangular shape in plan view, and the left and right side plates 17 connected to the lower portions of both left and right ends are the left and right support frames 1 having the front, rear, left, and right guides 15.
8, and a focusing recess I9 as a focusing portion is formed in a substantially semicircular shape at an intermediate portion of the inner end of the other slide body 16 facing the lower part of the focusing recess 13 of the one slide body 12. There is. And this other slide body 1
6 are adapted to overlap with the inner lower part of the one slide body 12.

Also, the inner lower part of the focusing recess 13 of the one slide body 12 and the focusing recess 19 of the other slide body 16
A heater 20 is attached to the inner lower part of each of the tubes through a heat insulating material to sandwich and heat-seal the binding portion of the see-through film F from both sides.

Next, a film support mechanism 21 is fixed to the middle upper part of the one slide body 12 in the left-right direction and the middle upper part of the other slide body j6 in the left-right direction so as to face each other in the front-rear direction. The film support mechanism 21 on one slide body 12 and the film support mechanism 21 on the other slide body 16 have a cylinder 22 fixed to the upper part of the slide body 12.16, and the front and rear walls of this cylinder 22 Part 2
A piston rod 25 is inserted into the front and rear insertion holes 24 bored opposite to the rear wall 23 so as to be able to move back and forth in the front and rear directions. A stop bar 26 is integrally formed with the inner end of the piston rod 25, that is, the guide hole 8 of the support top plate 4.
A conical support 27 made of an elastic material such as rubber is fixed to the tip facing the center of the cylinder 22, and a coil spring 27 is attached to the piston rod 25 within the cylinder 22.
8 is wound, and the rear end of this coil spring 28 is locked to the rear wall 23 of the cylinder 22, and the front end of this coil spring 28 is provided to protrude from the front side of the piston rod 25. It is locked by a stopper 29. The piston rod 25 is always urged toward the opening edge of the focusing recess 13.19 by the coil spring 28, and the support body 27 at the tip is slightly pressed against the opening edge of the focusing recess 13.19. It is becoming more prominent.

In addition, a rack 30 is formed in the front-rear direction at the bottom of one end of the one slide body 12 in the left-right direction, and a rack 30 is formed on the supporting frame 18 at one end of the other slide body 16 in the left-right direction. Racks 31 are formed in the front-rear direction to face each other at a predetermined interval, and a pinion 32 is rotatably engaged between the upper and lower racks 30 and 31. The shaft 33 has a boss 34 projecting from the bottom of the support top plate 4.
is rotatably supported.

Further, a cylinder device 35 is fixed to an example upper part in the left-right direction of the support substrate 6, one end of an interlocking piece 37 is fixed to the tip of a piston rod 36 of this cylinder device 35, and the other end of this interlocking piece 37 A support frame 18 having the rack 31 is connected to the section. When the piston rod 36 is expanded and contracted by the operation of the cylinder device 35, the front and rear slide bodies 12, 16 are moved back and forth in the front and rear direction via the pinion 32 and the rack 30. Opposing focusing recesses 13.
+9 is closed directly below the guide hole 8.

Further, a mounting base 38 is fixed to the upper middle of the outer end of one side in the front-rear direction of the support board 6, and a left and right rotation center shaft 39 protruding from the left and right upper parts of the mounting base 38 is provided with a slider. An opening/closing rod 40 located at the lower part of the body 16 and serving as an opening/closing body
The proximal end of is pivoted so as to be rotatable in the left and right directions. Further, a cam 41 that bulges inward is formed on the opposing inner sides of the base ends of the left and right opening/closing rods 40, and a converging cam 41 is formed on the opposing inner sides of the tip portions of the left and right opening/closing rods 40. A converging protrusion 42 as a part is bulged and formed, and when the left and right converging protrusions 42 are closed, the front and rear slide bodies 12.1
They are joined directly below the guide hole 8 at the lower part of the guide hole 8 .

Further, first operating pins 4 are provided at the left and right portions of the middle lower part of the outer end of the one slide body 12 to open and close the left and right opening/closing rods 40.
3. A second operating pin 44 and a third operating pin 45 are provided protrudingly, and the first to third operating pins 43.4 on the left and right sides
4.45, the left and right opening/closing rods 40 are opened and closed, and when the left and right opening/closing rods 40 are opened, the bases of the left and right opening/closing rods 40 are connected to the first to third operating pins 43.44. It is supported by three points of .45.

The front and rear slide bodies 12 and 16, the front and rear heaters 20, and the front and rear film support mechanisms 21. Upper and lower racks 3G, 31, pinion 32, cylinder device 35,
Left and right opening/closing rods 40 and first to third operating pins 43.
44 and 45 constitute a film binding mechanism 46.

Next, a bearing body 47 is fixed to the upper and lower portions of one side in the left and right direction of the mounting board 5 and the support board 6, and a screw punch 48 is vertically supported rotatably between the upper and lower bearing bodies 47. A sprocket 49 is fixed to the lower end of the punch 48, and an endless chain 53 is suspended between the sprocket 49 and a sprocket 52 of an output shaft 51 of an electric motor 50, and the electric motor 50 is attached to one of the mounting boards 5. Fixed to the upper side. Further, a guide rod (not shown) is installed between the upper and lower shafts, supports, and bodies fixed to the front and rear parts of the upper and lower bearing bodies 47, and this front and rear guide rod is connected to the screw punch 48. They are arranged parallel to each other.

Further, a series of thread grooves 54 are formed in the vertical direction in the screw punch 48, and a nut body 55 is screwed and supported in the thread groove 54 so as to be movable up and down.
6 are fixed together through a connecting frame 57, and guides protruding from the front and rear of the connecting frame 57 are inserted and supported by the guide rods so as to be vertically movable. Further, a horizontal elevating support plate 58 protruding from the inner side of the elevating body 56 is provided with an insertion hole 59 vertically penetrating therethrough. The elevating body 56 having the elevating support plate 58 is raised and lowered with respect to the guide hole 8 through the nut body 55 and guided and supported by the front and rear guide rods by the rotation of the screw punch 48. It has become.

Further, a vegetable receiver 60 is attached to the elevating support plate 58 of the elevating body 56, and this vegetable receptacle 60 is formed in a cylindrical shape, and an annular support portion 61 is formed at the upper edge of the opening. A tapered insertion part 62 inserted into the insertion hole 59 of the lifting support plate 58 protrudes, and a locking part 62 is secured to the upper edge of the opening of the insertion hole 59 on the outer circumference of the upper end of the insertion part 62. Part 63
is formed horizontally.

The vegetable receiver 60 is raised and lowered with respect to the guide hole 8 by the raising and lowering operation of the raising and lowering body 56.
Further, a guide opening 64 is opened in the support substrate 6 to guide the raising and lowering of the vegetable receiver 60.

Next, the operation of the above configuration will be explained.

The elevating body 56 is suspended by the screw pestle 48 by operating the electric motor 50.
The upper vegetable receiver 60 is raised and the vegetable receiver 6G is disposed directly below the guide hole 8 of the support top plate 4, and the support surface portion 7 of the support top plate 4 is removed from a film supply device (not shown).
A transparent film F for keeping freshness is supplied on top, and this transparent film F is expanded and supported on the support surface part 7 so as to close the guide hole 8. This see-through film F uses a transparent synthetic resin film, such as a polyethylene film, containing a freshness-preserving agent that maintains the freshness of vegetables.

Next, the transparent film F is attached to the guide hole 8 of the support top plate 4.
When head-heading vegetables A such as cabbage, Chinese cabbage, and lettuce are supplied with the cut end B of the root thereof facing upward, the head-head vegetables A are fed through the transparent film F while pulling out the transparent film F from the support surface 7. Vegetable receiver 60 waiting at the lower part of guide hole 8 from guide hole 8 with film F
is lowered onto the annular support portion 61 and received therein.

In this case, the vegetable receiver 60 is formed in a cylindrical shape, and the lower part of the peripheral side of the head vegetable A is supported by the annular support part 61 at the upper edge of this opening.
Therefore, the head vegetables A are stably received on the support part 61 via the see-through film F, as shown by the chain line in FIG.

Then, when the electric motor 50 is operated, its output shaft 511
A screw screw 48 is rotated in conjunction with the sprocket 49, 52 and an endless chain 53, and is guided along the screw screw 48, through a nut body 55, and by the front and rear guide supports to lift and lower the lifting body 56 and its vertical movement. The vegetable receptor 6C on the body 56 is lowered, and the vegetable head A is lowered below the guide hole 8, and the transparent film F between the annular support part 61 of the vegetable receptor 60 and the vegetable head A is As the vegetables A descend, they are supported by the head vegetables A and pulled out from the guide hole 8, and the upper part of the head vegetables A is attached to the film binding mechanism 4 as shown in FIG.
6, and the operation of the electric motor 50 is stopped.

Further, when the operation of the electric motor 50 is stopped, the cylinder device 35 is operated and the piston rod 36 is extended, and the interlocking piece 37 is moved by the piston rod 36.
The other slide body 16 having a rack 31 is interlocked with the other slide body 16 via a plurality of guides 15.
is moved rearward along the guide rail 14 via the guide rail 14.

Moreover, this other slide body 16 is connected to the cylinder device 35.
When the other slide body 16 is moved, the pinion 32 meshed with the rack 31 of the other slide body 16 is rotated, and the one slide body 12 is interlocked via the rack 30 meshed with this pinion 32. is moved forward along the guide rail 10 via a plurality of guides 11. Therefore, the front and rear slide bodies 12.
16 are respectively moved from the front and rear directions directly below the guide hole 8, and the opposing focusing recesses N and 19 on the inner sides of the front and rear slide bodies 12 and 16 are gradually overlapped and approached, and the front and rear focusing The front and rear portions of the see-through film F that wraps the head vegetable A are gradually narrowed down from the front and back directions above the head vegetable A by the recesses 13 and 19.

The front and rear focusing recesses 13. When +9 approaches a predetermined position, the supports 27 of the front and rear film support mechanisms 21 come into contact with each other from the front and rear directions via the transparent film F, but the front and rear slide bodies 12. , +6 continues to be moved directly below the chamber hole 8, the front and rear slide bodies 12.16 compress the coil spring 28 of the film support mechanism 21 and are applied to the piston rod 25 via the cylinder 22. Then, it is further moved directly below the guide hole 8 from the front and rear directions. Therefore, as shown in FIG. 5, the front and rear parts of the see-through film F that wraps the upper part of the head vegetable A are first elastically clamped from the front and rear directions by the supports 27 of the front and rear film support mechanisms 21. Then, the lower part of this clamping part is closed from the front and rear directions by the focusing recess 13.degree. 19, and then differentially bound.

Further, as described above, when one slide body 12 is moved forward, the left and right opening/closing rods 40 are rotated by the first to third operating pins 43, 44, 45 of this one slide body 12. They are gradually rotated inward in opposite directions about the center axis 39 of movement. That is, the left and right second operating pins 44 are disengaged from the cams 41 of the left and right opening/closing rods 40, and the left and right opening/closing rods 40 are rotated about the rotation center axis 39 by the left and right first and third operating pins 43.45. The converging protrusions 42 on the inner side of the opening/closing rod 40 gradually approach each other, and the left and right converging protrusions 42 cause the head vegetable A to be rotated inwardly in the closing direction.
The right and left portions of the transparent film F that wraps are narrowed down from the left and right directions.

Therefore, as shown in FIG. 5, the upper part of the circumferential side of the transparent film F on the support part 61 of the vegetable receiver 60 for packaging the head vegetables A is located between the convergence points 113. of the front and rear slide bodies 12.16.
+9, The support body 27 of the front and rear film support mechanisms 21 and the converging protrusions 42 of the left and right opening/closing rods 40 narrow down almost simultaneously from the front and rear and left and right directions, and the peripheral side portions of this transparent film F are bundled into a rod shape. .

Further, the upper part of the transparent film F is tied into a rod shape, and the slide bodies 12 .
16 heaters 20 are in contact with each other from the front and rear directions, and the lower part of the rod-shaped bundle f is heat-sealed by the front and rear heaters 20, and an unnecessary film part F is formed of the rod-shaped bundle f above the seal part H; is cut off from the see-through film F as an extra portion. As a result, head vegetable A
is packaged in a state where the whole is covered with a transparent film F, and a seal part H of this transparent film F is formed on the top of the head-heading vegetable A, so that the head-heading vegetable A can be easily seen through the transparent film F. I can do it.

Next, when the unnecessary film portion F of the transparent film F is fused by the front and rear heaters 20, the cylinder device 3
The piston rod 36 of No. 5 is contracted, and one slide body 1
2 and the other slide body I6 are slid outward in the direction opposite to the case of binding the transparent films F, in the direction of separating them from each other, and the respective focusing recesses 13, 19 are gradually opened, but at this time, the front and rear Even if the slide bodies 12.16 start sliding outward in opposite directions, the front and rear supports 27, which hold the bundled parts f of the cut unnecessary film parts F, immediately move the respective slide bodies 12.16. This front and rear support body 27 is not linked to the outward slide.
continues to hold the unnecessary film portion F by the biasing force of the compressed coil spring 28. Then, the front and rear slide bodies 12.16 are slid outward by a predetermined amount from the slide start position, and while the respective coil springs 38 are gradually restored, the front and rear slide bodies 12.1
6 is slid outward along the piston rod 25 through the respective cylinders 22, and the respective cylinders 22
The rear wall portion 23 of each piston rod 25 is locked with the stopper 26 of each piston rod 25, and each piston rod 25 is moved outward in conjunction with the front and rear slide bodies 12.1.6, and each Tip supporter 2
7 is separated, the clamping of the unnecessary film portion F1 is released, and
This unnecessary film portion F1 is dropped to a fixed position. Therefore, even if the front and rear slide bodies 12, 16 are slid outward and the respective heaters 20 are separated outward, the film support mechanism 21 is moved later than that, and the unnecessary film portion F is immediately stopped. Since the heater 2G is not released, the heater 2G is easily separated from the unnecessary film portion F1, and the unnecessary film portion F is prevented from being welded to the heater 20 and from scattering outward.

Further, when one slide body 12 is slid outward as described above, the left and right opening/closing rods 4 are operated by the first to third operating pins 43, 44, 45 of this one slide body 12.
0 are rotated outward in a direction away from each other about the rotation center axis 39, and the respective focusing protrusions 42 are opened. Therefore, the front and rear slide bodies 12, 16 and the left and right opening/closing rods 40 are returned to their starting positions in preparation for the next binding of the transparent film F.

Next, when the piston rod 36 of the cylinder device 35 is contracted and returned to the starting position in preparation for bundling the next transparent film F, the electric motor 50 is operated, and this power is used to move the transmission through the sprocket 49, 52 and the endless chain 53. The screw punch 48 is rotated, and as the screw punch 48 rotates, the lifting body 56 is lowered along the screw punch 48 and the guide rods in front and rear thereof, and the transparent film F on the lifting body 56 lowers the packaging. The packaged head vegetables A are lowered to a predetermined lowering position, and the packaged head vegetables A on the vegetable receiver 60 are moved to the vegetable receiver 60 by a pusher such as a pusher.
It is carried outward from above.

Further, when the head vegetables A are carried out, the electric motor 50 is operated in reverse, and the screw pestle 48 is rotated in the opposite direction to the lowering direction of the elevating body 56, and is raised and lowered along the screw pestle 48 and the front and rear guide rods. The body 56 and the vegetable receiver 60 on this elevating member 56 are raised, and the elevating member 56 returns this vegetable receiver 60 to the starting position directly below the guide hole 8 in preparation for receiving the next head vegetable A. At the same time, the operation of the electric motor 50 is stopped.

〔Effect of the invention〕

According to the invention of claim 1, film support mechanisms having support bodies that can move forward and backward are provided opposite to each other on both sides of a film binding mechanism for binding and sealing films for packaging head vegetables, and the support bodies of this film support mechanism are provided oppositely. By differentially operating the film binding mechanism with respect to the opening/closing operation, it is possible to sufficiently bind the binding portion of the film wrapping the head vegetables, and also to ensure that the binding portion is heat-sealed and unnecessary film parts are removed. In addition, after heat-sealing and fusing the bundled part, the unnecessary film part can be temporarily and reliably held by the supports on both sides, thereby preventing the unnecessary film part from being attached to the heater. Welding and scattering can be reliably prevented.

In addition, head vegetables can be reliably received on the vegetable receiver via a film, and by lowering the vegetable receiver and activating the film binding mechanism, the head vegetables can be securely wrapped with the film. However, since the binding part at the top of the head vegetables is sealed, the head vegetables are not damaged by heat during sealing. The whole vegetable can be automatically packaged, the efficiency of packaging work can be greatly improved, and the labor can be greatly reduced.

Further, according to the second aspect of the invention, the support body of the film support mechanism is constantly biased and supported by a spring via the piston rod, thereby reliably elasticating the binding portion of the film into a state where it is easy to heat-seal and melt-cut. can hold,
Moreover, when separating, the release of the unnecessary film portion by the support can be reliably made to differ from the operation of the film binding mechanism.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view of the vegetable packaging device, Fig. 2 is a transverse plan view taken along line a to a of the same, and Fig. 3 is Fig. 1 b-b. FIG. 4 is a vertical side view of the lined portion, FIG. 4 is a vertical side view of the film support mechanism, FIG. 5 is a side view showing the packaging seal state, and FIG. 6 is a side view showing the vegetable receiver in the lowered state. . 4. Support body, 8. Guide hole, 20. Heater, 21
... Film support mechanism, 22.. Cylinder 25.. Piston rod, 27.. Support body, 46.. Film binding mechanism, 60.. Vegetable receiver, A.. Heading vegetables, Fll-film.

Claims (2)

[Claims] (1) A support having a guide hole for guiding the descent of head vegetables and supporting a film developed to close the guide hole, and the support being movable up and down with respect to the lower part of the guide hole. a vegetable receiver which receives the head vegetables which are lowered while pulling out the film from the guide hole through the film; and a vegetable receiver which collects the film on the vegetable receiver from the front, rear, left and right directions to cover the head vegetables and It has a film binding mechanism that can be opened and closed to bind and heat-seal the upper part of the head vegetables, and a support body that is provided opposite to the film binding mechanism and that can move forward and backward to sandwich the binding part of the film from both sides. A vegetable packaging device characterized by comprising a film support mechanism that differentially moves the supports on both sides with respect to the opening/closing operation of the film binding mechanism. (2) The film support mechanism has a cylinder fixed at a position opposite to the film binding mechanism, and a support body is provided at the tip of a piston rod that is provided in the cylinders on both sides so as to be able to move forward and backward. 2. The vegetable packaging device according to claim 1, further comprising a spring for constantly protruding the support body in opposite directions via the piston rod.