JP2650656B2 - Vegetable packaging equipment - Google Patents

Description

The present invention relates to a vegetable packaging apparatus, for example, cabbage,
The present invention relates to a method for automatically wrapping head vegetables such as Chinese cabbage and lettuce with a film.

(Prior Art) Conventionally, as a vegetable packaging apparatus of this type, for example, a guide hole for lowering a head vegetable is formed on a film mounting plate, and a vegetable receiver is provided below the guide hole so as to be vertically movable. A film bundling mechanism provided with a heater for covering the head vegetables on the vegetable receiver in a lower portion of the film mounting plate by narrowing down the film, and providing a heater for heat-sealing a bundling portion that binds a peripheral portion of the film. Some are provided with a configuration.

Then, the film is unfolded and placed on the film mounting plate in a state where the guide hole is closed, and the head vegetables are supplied into the guide hole through the film. Is dropped onto the vegetable receiver via the film while being pulled out by its own weight, the vegetable receiver is lowered to a predetermined position, the film binding mechanism is operated, and the peripheral edge of the film covering the head vegetables by the film binding mechanism. The portion is focused above the head vegetables, and the bound portion of the film is heat-sealed by a heater.

(Problem to be Solved by the Invention) In the configuration of the prior art, the film on the vegetable receiver is
The film bundling mechanism squeezes and binds the head over the head vegetables, and the bound portion is heat-sealed by the heater and the unnecessary film portion is blown off. Therefore, the unnecessary film portion is easily welded to the heater, and the unnecessary film portion is removed. Is moved by the separating operation of the heater while attached to the heater, the unnecessary film portion is scattered to an unexpected place, and the periphery may be soiled by the unnecessary film portion, and the binding portion is heat-sealed and blown by the heater. At this time, if the binding portions are not sufficiently bound, there is a problem that the heat sealing is likely to be uncertain and the fusing of the unnecessary film portion is also likely to be uncertain.

Therefore, the present invention has been made in view of such a problem, and it is possible to sufficiently bind and hold the binding portion of the film wrapping the head vegetables, and to cut off the unnecessary film portion which has been cut off after heat sealing and cutting of the binding portion. Can be temporarily held, so that the heat sealing of the binding portion of the film and the fusing of the unnecessary film portion can be reliably performed. It is an object of the present invention to provide a vegetable packaging apparatus capable of reliably preventing a part from being transported to an unexpected location by a separating operation of the heater while being attached to the heater, being scattered and contaminating the surroundings.

(Means for Solving the Problems) The vegetable packaging apparatus according to the first aspect of the present invention has a guide hole for guiding the fall of head vegetables, and a film loading device for placing a film developed at a position where the guide hole is closed. A container, a vegetable receiver which is provided below the guide hole of the film mounting body and is provided movably up and down, and which receives head vegetables dropped while pulling out a film from the guide hole; A film bundling mechanism that is provided at the lower part of the body and is openable and closable, squeezes the film on the vegetable receiver, covers the head vegetables, and binds the periphery of the film at the top of the head vegetables. The film binding mechanism has an openable and closable focusing unit that narrows down the film on the vegetable receiver from the front and rear direction and the left and right direction and focuses the peripheral portion of the film above the head vegetables. With
At opposite positions of the focusing portion, heaters for holding and heat-sealing the binding portion of the film collected above the head vegetables from both sides are provided, and a film support mechanism is provided at an upper position of the focusing portion at a facing position. Each of the opposed film support mechanisms is provided with an unnecessary film portion that is blown out when heat-sealing the tied portion of the film with the heater, and after the heat-sealing, it is later than the separating operation of the corresponding heater. A support that can be moved forward and backward to release the sandwiching of the unnecessary film portion and a spring that constantly projects and biases this support to the opening edge of the converging portion are provided.

According to a second aspect of the present invention, in the vegetable packaging apparatus according to the first aspect, the film supporting mechanism has cylinders fixed to respective positions opposite to the film binding mechanism, and is provided on the cylinder so as to be able to advance and retreat. A support is provided at the distal end of the rod, and a spring is provided in the cylinder so as to always urge the support to the opening edge of the focusing portion via the rod.

(Operation) In the vegetable packaging apparatus according to the first aspect of the present invention, the vegetable receiver is raised, the vegetable receiver is disposed immediately below the guide hole of the film mounting body, and the vegetable mounting body is placed on the upper surface of the film mounting body. A film is developed and placed at a position where the guide hole is closed.
Then, when a head vegetable is supplied through the film to the guide hole of the film mounting body, the head vegetable falls from the guide hole with the film onto the vegetable receiver with the film from above the film mounting body. Will be received.

Next, when the vegetable receiver is lowered, the film between the vegetable receiver and the head vegetable is further pulled out from the guide hole while the head vegetable is supported, and the head vegetable is pulled out. At the same time, the lowering of the vegetable receiver is stopped.

Then, when the converging portion of the film bundling mechanism is operated in the closing direction, the peripheral portion of the film on the vegetable receiver is narrowed down from the front and rear direction and the left and right direction to the converging portion, and this film covers the head vegetables. The peripheral portion of the film is bound above the head vegetables, and both sides of the unnecessary film portion of the bound portion of the film that is blown are held by opposing supports of the film supporting mechanism.

Then, when the converging portion of the film bundling mechanism is further closed, the converging portion is closed while compressing the spring of the opposing support, and the bundling portion of the film is further moved in the front-rear direction and the left-right direction by the converging portion. And the bundle is heat-sealed by the opposed heater. Then, the head vegetables are wrapped and sealed with the film, and the unnecessary film portion is reliably blown off from the heat seal portion by the heater.

Next, when the head vegetables are wrapped with the film, the vegetable receiver is operated again, and the vegetable receiver is further lowered to stop the wrapped vegetables from descending to the carry-out portion, while the film tying mechanism is opened. Then, the converging portion of the film binding mechanism is gradually opened, and the heater is also separated, but the opposing support of the film supporting mechanism is compressed and is not immediately linked to the separating operation of the heater by the spring, and the film is Unnecessary film portions blown by the support members opposite to each other in the support mechanism are continuously held.

Then, when the bundling unit of the film binding mechanism is opened and the heater is opened and separated to a predetermined position,
The opposing supports of the film support mechanism are gradually separated with a delay from the separating operation of the heater, and the unnecessary film portion is released from being held by the opposing supports, and the unnecessary film portion is reliably separated from the heater. The unnecessary film portion is dropped to a fixed position without being scattered.

Further, in the vegetable packaging apparatus according to the second aspect of the present invention,
In the operation of the vegetable packaging apparatus of the invention, when the converging portion of the film bundling mechanism is closed to a predetermined position, the opposing supports come into contact with each other via the film, but the converging portion of the film bundling mechanism continues. Since the closing operation is performed just below the guide hole, the converging portion of the film binding mechanism is further closed just below the guide hole while compressing the spring of the support of the film supporting mechanism.

Therefore, the film binding portion is first elastically clamped by the support from both sides, and then the film is further bound from the front-back direction and the left-right direction at the collecting portion of the film binding mechanism.

Next, even if the converging portion of the film bundling mechanism is opened, the opposing supports sandwiching the unnecessary film portion are not immediately linked with the opening operation of the converging portion, and the opposing supports are attached with compressed springs. Unnecessary film parts are continuously pinched by the force.

Then, the bundling portion of the film bundling mechanism is opened by a predetermined amount, and the springs for urging the supports are gradually restored, and the respective rods are interlocked with the opening operation of the bundling portion. Are separated from each other to release the unnecessary film portion, and the unnecessary film portion is dropped to a predetermined position.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a vegetable packaging apparatus. The vegetable packaging apparatus 1 has columns 2 standing up and down at predetermined intervals in front, rear, left and right. The support frame 3 is horizontally fixed between the portions and the portion near the upper end. A mounting plate as a film mounting body is horizontally fixed between the left and right supporting frames 3 at the upper end, and a mounting substrate 5 is horizontally fixed between the left and right supporting frames 3 at the lower end. I have. Further, a support substrate 6 is horizontally fixed between the left and right support frames 3 near the upper end.

Next, the placing plate 4 has a placing surface 7 on a top surface portion on which a vegetable packaging film, for example, a see-through film F is placed in a developed state, and the placing surface 7 has a contact surface with the see-through film F. It is formed in a shape such as a reduced mesh. In addition, a circular guide hole 8 for descending vegetables is formed in a substantially central portion of the mounting plate 4 so as to penetrate vertically. As the see-through film F, for example, a transparent synthetic resin film such as a polyethylene film including a freshness preserving agent for preserving the freshness of vegetables is used.

A pair of guide rails 10 in the front-rear direction are fixed parallel to each other at the lower portion on both sides in the left-right direction of the mounting plate 4 with the guide holes 8 interposed therebetween in the middle part. One of the slide bodies 12 is attached to the front and rear via a guide 11 provided before and after the other so as to be able to advance and retreat in the front and rear direction, and the one slide body 12 is advanced toward the guide hole 8. The one slide body 12 is formed of a plate-like member into a substantially rectangular shape in a plan view, and a focusing portion as a focusing portion formed in a substantially semicircular shape at an intermediate portion at an inner end portion facing down the guide hole 8. It has a recess 13.

Further, a pair of front and rear guide rails 14 is fixed in parallel to upper portions on both sides in the left and right direction of the support substrate 6, and the other slide member is provided on the pair of guide rails 14 via guides 15 provided in front and rear of the left and right portions. Reference numeral 16 is attached so as to be able to advance and retreat in the front-rear direction, and the other slide body 16 is advanced toward the guide hole 8. This other slide 16
Are formed in a substantially rectangular shape in a plan view by a plate-like member, and left and right side plates 17 connected to lower portions of both ends in the left-right direction of the slide body 16 are fixed to left and right support frames 18 having the guides 15 respectively. Have been.

Further, the other slide body 16 has a focusing concave portion 19 as a focusing portion formed in a substantially semicircular shape at an intermediate portion at an inner end facing downward of the focusing concave portion 13 of the one slide body 12. I have. The converging concave portion 19 of the other slide body 16 and the converging concave portion 13 of the one slide body 12 overlap each other so that the peripheral side portion of the see-through film F is narrowed and converged.

Also, as shown in FIG. 3, the binding portions of the see-through film F are attached to the inner lower surface of the focusing recess 14 of the one slide body 12 and the inner lower surface of the focusing recess 19 of the other slide body 16 from both sides. Heaters 20 to be sandwiched and heat-sealed are respectively attached via heat insulating materials.

Next, a film support mechanism 21 is fixed to an upper middle part in the left-right direction of the one slide body 12 and a middle upper part in the left-right direction of the other slide body 16, respectively.

The film support mechanism 21 on the one slide body 12 and the film support mechanism 21 on the other slide body 16, as shown in FIG. 2 and FIG. A rod 25 is inserted through front and rear insertion holes 24 formed in front and rear walls 23 of the cylinder 22 so as to advance and retreat in the front-rear direction.

The rod 25 is provided with a stopper 26 which is integrally formed with a rear end portion of the rear wall portion 23 and which is integrally formed at a base end portion, and faces a distal end portion of the rod 25, that is, a center portion of the guide hole 8 of the mounting plate 4 described above. It has a support 27 formed in a conical shape with an elastic material such as rubber fixed to the distal end, and a stopper 29 protruding from the front side of the rod 25.

A coil spring 28 is wound around the rod 25 in the cylinder 22.
The rear end of the coil spring 28 is locked to the rear wall 23 of the cylinder 22 and the front end of the coil spring 28 is
It is locked by 25 stoppers 29. The rod 25 is always held by the coil spring 28 so that
The rods 25 are urged toward the opening edges of the rods 13 and 19, and the support 27 at the tip of the rod 25 is slightly projected from the opening edges of the two focusing recesses 13 and 19.

Further, a rack 30 is formed in the front-rear direction at the lower end of the one slide body 12 in the left-right direction, and the rack 30 is mounted on the support frame 18 at the left-right end of the other slide body 16. The racks 31 facing each other at predetermined intervals are formed in the front-rear direction, and pinions 32 meshing with the upper and lower racks 30, 31 are rotatably provided between the upper and lower racks 30, 31. A horizontal pinion shaft 33 having a shaft 32 is rotatably mounted on a boss 34 protruding from a lower portion of the mounting plate 4.

Further, a cylinder device 35 is fixed to an upper portion on one side in the left-right direction of the support substrate 6, and one end of an interlocking piece 37 is fixed to a distal end portion of a piston rod 36 of the cylinder device 35,
The supporting frame 18 having the rack 31 is connected to the other end of the interlocking piece 37. The front and rear slides 12 and 16 are moved forward and backward through the pinion 32 and the racks 30 and 31 by the piston rod 36 which is moved forward and backward by the operation of the cylinder device 35, and the converging concave portions are opposed to each other at the time of advance. 13,19
Are closed immediately below the guide hole 8.

Further, a mounting table 38 is provided at an intermediate upper portion of the front end of the support substrate 6.
The other slide body 16 is fixed to the left and right rotation center shafts 39 protruding from both upper sides in the left and right direction of the mounting base 38.
Left and right opening / closing rails 40 as opening / closing bodies are pivotally mounted on the lower part of the vehicle.

Also, cams 41 bulging inward are formed on the inside of the left and right opening / closing rails 40 opposite the base end, and a focusing is provided on the inside of the left and right opening and closing rails 40 opposite to each other. A converging projection 42 as a part is formed by swelling, and the left and right converging projections 42 are located below the front and rear slide bodies 12 and 16 and are closed just below the guide hole 8 when closed. Has become.

Also, a first operating pin for opening and closing the left and right opening and closing rails 40 on the left and right of the middle lower part of the front end of the one slide body 12.
43, a second operating pin 44 and a third operating pin 45 are protruded, and the left and right opening / closing rods 40 are opened and closed by the first to third operating pins 43, 44, 45 on the left and right portions. so,
When the left and right opening and closing rails 40 are opened, the left and right opening and closing
The base of 40 is supported by three points of first to third actuation pins 43,44,45.

Then, one slide body 12 having a focusing recess 13 serving as the focusing section, the other slide body 16 having a focusing recess 19 serving as the focusing section, left and right opening / closing rods 40 having a focusing projection 42 serving as a focusing section, and front and rear. And the heater 20 constitute a film binding mechanism 46. The film binding mechanism 46 further includes upper and lower racks 30, 31, a pinion 32, a cylinder device 35, and first to third operating pins 43, 44, 45. It has.

Next, bearings 47 are fixed to the upper surface of the mounting substrate 5 and the lower surface of the supporting substrate 6, respectively, and a vertical screw rod 48 is rotatably supported between the upper and lower bearings 47. I have. A sprocket 49 is fixed to the lower end of the spiral rod 48, and an endless chain 53 is suspended between the sprocket 49 and the sprocket 52 of the output shaft 51 of the electric motor 50 so as to freely rotate. It is fixed to the mounting board 5. Guide support rods (not shown) are respectively supported between the upper and lower bearing bodies fixed to the front and rear portions of the upper and lower bearing bodies 47, and the front and rear guide support rods are parallel to the screw rod 48. It is arranged in.

Further, the screw rod 48 is formed with a series of screw grooves 54 in the vertical direction, and a nut body 55 is screwed into the screw groove 54, and an elevating body 56 is integrally fixed to the nut body 55 via a connection frame 57. And
Further, guides protruding from the front and rear portions of the connection frame 57 are inserted into and supported by the guide support rod (not shown) so as to be vertically movable. An insertion hole 59 is formed in a horizontal lifting support plate 58 protruding from the lifting body 56 so as to penetrate in a vertical direction. The elevating body 56 having the elevating support plate 58 is guided by the front and rear guide supporting rods via the nut body 55 by the rotation of the screw rod 48 and is moved up and down with respect to the guide hole 8. It has become.

Further, a vegetable receiver 60 is attached to the lifting support plate 58 of the lifting body 56. This vegetable receiver 60 is formed in a cylindrical shape,
An annular support portion 61 is formed at the upper edge of the opening, and an outer peripheral surface thereof is tapered at a lower portion thereof.
An insertion portion 62 to be inserted into the projection is projected, and a locking portion locked to an upper edge portion of the opening of the insertion hole 59 is formed at an outer peripheral portion of an upper end of the insertion portion 62.
63 is formed horizontally. And this vegetable receiver 60
Is moved up and down with respect to the guide hole 8 by the elevating operation of the elevating body 56, and a guide port 64 for guiding the elevating and lowering of the vegetable receiver 60 is opened in the support substrate 6. .

 Next, the operation of the above embodiment will be described.

When the motor 50 is operated to rotate the spiral rod 48, the spiral rod 48 is rotated.
Vegetable receiver on lifting body 56 via nut body 55 screwed on 48
60 is guided by the front and rear guide rods and lifted, this vegetable receiver
60 is located immediately below the guide hole 8 of the mounting plate 4, the operation of the electric motor 50 is stopped, and the lifting of the vegetable receiver 60 is stopped. Then, a see-through film F for maintaining freshness is supplied onto the mounting surface 7 of the mounting plate 4 from a film supply device (not shown), and the see-through film F is developed at a position where the guide hole 8 is closed. Is placed.

Next, the transparent film F is inserted into the guide holes 8 of the mounting plate 4.
When head vegetables A such as cabbage, Chinese cabbage, and lettuce are supplied through the cutout B with the cut end B thereof facing upward, the head vegetables A are passed through the guide hole 8 of the mounting plate 4 and the transparent film F Of the vegetable receiver 60 waiting below the guide hole 8 with the transparent film F while pulling out
Drops on 61 and is received. In this case, the vegetable receiver 60 is formed in a cylindrical shape, and the lower portion on the peripheral side of the head vegetable A is supported by the annular support portion 61 at the upper edge of the opening. Therefore, the head vegetable A is stably received on the support portion 61 via the see-through film F as shown by the chain line in FIG.

Then, when the electric motor 50 is operated, the screw rod 48 is rotated, guided by the front and rear guide support rods via the nut body 55 screwed to the screw rod 48, and the vegetable receiver 60 on the elevating body 56 and The head vegetable A on the vegetable receiver 60 is lowered, and the see-through film F between the annular support portion 61 of the vegetable receiver 60 and the head vegetable A is supported by the head vegetable A and pulled out from the guide hole 8. Then, as shown in FIG. 3, the upper part of the head vegetables A is lowered to a predetermined position below the film binding mechanism 46, and
The operation of 50 is stopped, and the descent of the head vegetable A is stopped.

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

When the other slide body 16 is moved by the cylinder device 35, the rack of the other slide body 16 is moved.
A pinion 32 meshed with the pinion 31 is rotated, and one slide body 12 is interlocked via the rack 30 meshed with the pinion 32, and the one slide body 12 is moved along the guide rail 10 through the plurality of guides 11. Moved backwards.

Therefore, the front and rear slide bodies 12, 16 are respectively moved from the front-rear direction toward directly below the guide holes 8, and
Opposite focusing recesses 13 and 19 on the inner portions of the front and rear slides 12 and 16 gradually approach each other while overlapping, and the front and rear focusing recesses 13 and 19 are used to package the heading vegetables A on top of the heading vegetables A. The peripheral portion of the film F is collected from the front-back direction and gradually narrowed down.

When the front and rear focusing recesses 13 and 19 approach each other to a predetermined position, the support body 27 of the front and rear film support mechanism 21 comes into contact with the front and rear direction through the transparent film F. Since the bodies 12 and 16 are continuously moved just below the guide hole 8, the front and rear slides 12 and 16 compress the coil spring 28 in the cylinder 22 and further move directly below the guide hole 8 in the front-rear direction. Moved from.

Then, as shown in FIG. 5, the front and rear portions of the see-through film F which wraps the head vegetables A are first elastically moved from the front and rear directions by the supports 27 of the front and rear film support mechanisms 21 as shown in FIG. Then, the lower portion of the portion of the transparent film F sandwiched by the support 27 is further narrowed down from the front and rear by the front and rear focusing concave portions 13 and 19 and bound.

Also, as described above, when one of the slides 12 is moved rearward, the first and third operating pins 43, 44, 45 of the one slide 12 rotate the left and right opening / closing rods 40. Each is gradually closed and rotated about the moving center shaft 39.
That is, the left and right second operation pins 44 are disengaged from the cam 41 of the left and right opening and closing rails 40, and the left and right opening and closing rods 40 are pivoted about the rotation center axis 39 by the first and third left and right operation pins 43 and 45. Each of them is gradually closed and rotated, and the converging projections 42 at the tip of the opening / closing rod 40 are gradually approached, and the left and right converging projections are
By 42, the right and left portions of the see-through film F that wraps the head vegetables A are collected from the left and right directions above the head vegetables A and gradually narrowed down.

Therefore, as shown in FIG. 5, the peripheral side portion of the see-through film F on the support portion 61 of the vegetable receiver 60 that wraps the head vegetable A is the focusing concave portions 13 and 19 of the front and rear slide bodies 12 and 16 and the front and rear portions. The film 27 is narrowed down substantially simultaneously from the front-rear direction and the left-right direction by the support 27 of the film support mechanism 21 and the converging projections 42 of the left and right opening / closing rods 40. To be united.

Further, the upper part of the see-through film F is bound in a rod shape, and the front and rear slides 1 are connected to the rod-shaped binding portion f.
The heaters 20 at the opposite positions 2 and 16 come into contact with each other from the front-back direction, and the lower portion of the rod-shaped binding portion f is heat-sealed by the heaters 20 before and after. unnecessary film portion F ₁ consisting of is blown from the heat-sealed portion H as an extra part. In this case, unnecessary film portion F ₁ is held between the support 27 of the front and rear of the film support mechanism 21. Thereby, head vegetable A
Is packaged in a state where the whole is covered with a see-through film F, and the heat-sealed portion H of the see-through film F is formed on the head vegetable A, and the see-through vegetable A can be easily seen through the see-through film F. be able to.

Then, the unnecessary film portion F ₁ of the fluoroscopic film F is blown by the front and rear of the heater 20, the piston rod 36 of the cylinder device 35 is deflated, the the one of the slide member 12 and the other slide member 16 perspective film F Are slid in the front-rear direction opposite to the direction in which they are bound, and the respective focusing recesses 13 and 19 and the heater 20 at the lower inside of the focusing recesses 13 and 19 are gradually separated.

At this time, it is started each slide toward the longitudinal direction of the opposite directions before and after the sliding body 12, 16, respectively, carrier 27 before and after clamping the blown been unnecessary film portion F ₁ of the bundling unit f is Immediately each slide body 12,1
Not linked to 6 of the slide, the support 27 of the front and rear continues to continue clamped unnecessary film portion F ₁ by the biasing force of the coil spring 28 which is compressed.

Further, when the front and rear slides 12 and 16 are slid by a predetermined distance from the slide start position, the coil springs 28 of the front and rear supports 27 gradually recover, and the front and rear slides 12 and 16 are restored.
12, 16 are respectively slid in the front-back direction.

The front and rear slides 12 and 16 lock the rear wall 23 of each cylinder 22 to the stopper 26 of each rod 25, and
25 is moved in conjunction with the front and rear slides 12 and 16, the supports 27 at the distal end of the rod 25 are separated in the front and rear direction, respectively, and the unnecessary film portion F ₁ is clamped by the front and back supports 27. is released, the unnecessary film portion F ₁ is dropped into place.

Therefore, the focusing recesses 13, 19 of the front and rear slide bodies 12, 16 are provided.
Are slid in the front-rear direction, respectively, and even if the heaters 20 of the front and rear slides 12 and 16 are separated in the front-rear direction, the support 27 of the front and rear film support mechanism 21 since separated later than separation operation, even before and after the heater 20 is separated from the heat-sealed portion H of the bundling unit f, unnecessary film portion F ₁ at the front and rear of the support 27 is continued to clamping, immediately unnecessary film Since the holding of the portion F ₁ is not released, the unnecessary film portion F ₁
Heater 20 is easily separated from the unwanted film portion F ₁ without be adhered or welded to the heater 20, the separation operation of the heater 20 is unnecessary film portion F ₁ may like scattered outward prevention Is done.

When one of the slides 12 is slid forward as described above, the first slide 12
Or the left and right opening / closing rod 40 by the third operating pins 43, 44, 45
Are pivoted about the rotation center axis 39 in the direction away from each other, and the respective focusing projections 42 are largely separated. Therefore, the front and rear slides 12 and 16 and the left and right opening and closing rails 40 are returned to the start position in preparation for the next binding of the see-through film F.

Next, when the piston rod 36 of the cylinder device 35 is retracted and returned to the start position in preparation for the next binding of the see-through film F, the electric motor 50 is operated, and the sprockets 49, 52 and the endless chain 53 are moved by this power. The screw rod 48 is rotated through the screw rod 48, and the lifting body 56 is lowered along the screw rod 48 and the guide support rods before and after the screw rod 48, and the head vegetables A wrapped by the see-through film F on the lifting body 56 are fixed. The dropped head vegetable A that has been lowered to the lowering position and wrapped on the vegetable receiver 60 is pushed by a pushing body such as a pusher.
It is carried out from above.

Further, when the head vegetables A are carried out, the electric motor 50 is rotated in the reverse direction, and the spiral rod 48 is rotated in the direction opposite to the descending direction of the elevating body 56, and along the spiral rod 48 and the front and rear guide support rods. The elevating body 56 and the vegetable receiver 60 on the elevating body 56 are raised, and the elevating body 56 returns the vegetable receiver 60 to the start position immediately below the guide hole 8 again 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 first aspect of the present invention, the film binding mechanism has a freely openable and closable focusing unit that narrows the peripheral portion of the film on the vegetable receiver from the front and rear direction and the left and right direction and focuses on the head vegetables. At the same time, heaters are provided respectively at opposite positions of the convergence portion and heat-seal by sandwiching the tying portion of the film collected above the head vegetables from both sides, and the upper and lower portions of the convergence portion are opposed to each other. The film support mechanism is provided on each side, and the unnecessary film part to be blown out is sandwiched from both sides when heat-sealing the bound portion of the film with the heater in the opposed film support mechanism. A retractable support that separates later than the separating operation and releases the pinching of the unnecessary film portion, and the support is always opened by the opening edge of the focusing portion. Since the spring for projecting and urging is provided, the binding portion of the film wrapping the head vegetables can be sufficiently bound and sandwiched, and after the heat sealing of the binding portion and the fusing of the binding portion, the heater is separated. In addition, the unnecessary film portion blown from the binding portion can be temporarily held by the supports on both sides separated from the binding portion later than the separating operation of the heater, so that the heat of the binding portion of the film can be maintained. Seals and unnecessary film parts can be reliably blown, and the unnecessary film parts are welded to the heater, or the unnecessary film parts are carried to unexpected places by the separating operation of the heater while attached to the heater and scattered. Therefore, it is possible to reliably prevent the surroundings from being stained by the unnecessary film portion.

In addition, since the bound portion of the film bundled at the focusing portion is heat-sealed with a heater and the unnecessary film portion is sandwiched and removed by fusing, the bound portion of the film can be finished in a good shape and neatness. . Therefore,
By activating the film binding mechanism, it is possible to organize the vegetables along the shape of the vegetables on the receptacle and to automatically package and seal the whole vegetables with this film. The width can be improved, and the labor can be greatly reduced.

According to the second aspect of the present invention, the support of the film support mechanism is always urged and held by the spring via the rod, so that the film binding portion is reliably held in a state where it is easily heat-sealed and melted. In addition, at the time of separation, the release of the unnecessary film portion by the support can be reliably delayed from the separation operation of the heater, and the configuration is simple.

[Brief description of the drawings]

Fig. 1 shows an embodiment of the present invention. Fig. 1 is a vertical sectional front view of a vegetable packaging apparatus, Fig. 2 is a cross-sectional plan view taken along line a-a of Fig. 1, and Fig. 3 is Figs. FIG. 4 is a vertical side view of the film support mechanism, FIG. 5 is a side view showing a sealed state of the package, and FIG. 6 is a side view showing a lowered state of the vegetable receiver. . 4 ... a mounting plate as a film mounting body, 8 ... guide holes,
13,19 ... Focusing concave part to be a focusing part, 20 ... Heater, 21
…………………………………………………………………………………………………………… Film film support mechanism, 22 …… Cylinder, 25 …… Rod, 27 …… Support body, 28 …… Spring, 42 …… Converging projection, 46 …… Film binding mechanism, 60… Body, A ... head vegetables, F ... film, f ... binding part.

Claims (2)

(57) [Claims] 1. A film mounting body having a guide hole for guiding the dropping of a head vegetable, on which a film developed at a position to close the guide hole is mounted, and a lower portion of the film mounting body below the guide hole. A vegetable receiver that is provided at a portion to be movable vertically and receives a head vegetable that is dropped while pulling out a film from the guide hole, and the vegetable that is provided at a lower portion of the film mounting body and is openably and closably provided. A film bundling mechanism that squeezes the film on the receiver to cover the head vegetables and binds the periphery of the film at the top of the head vegetables, and the film bundling mechanism removes the film on the vegetable receiver. An openable and closable focusing portion for narrowing the peripheral portion of the film above the head vegetables by narrowing down from the front-rear direction and the left-right direction, and having the head vegetables at a position opposed to the focusing portion; Heaters for holding and heat-sealing the bundled portion of the film collected above both sides are provided respectively.Film support mechanisms are provided at opposing positions of the upper portion of the converging portion, respectively. When heat-sealing the bound portion of the film with the heater, the unnecessary film portion to be blown is pinched, and after the heat sealing, the unnecessary film portion is separated later than the separating operation of the corresponding heater to release the pinching of the unnecessary film portion. A vegetable packaging apparatus, comprising: a flexible support; and a spring for constantly biasing the support to the opening edge of the focusing unit. 2. The film support mechanism has cylinders fixed respectively at positions opposite to the film binding mechanism,
A support is provided at a tip of a rod provided to be able to move forward and backward in the cylinder, and a spring is provided in the cylinder so as to always urge the support to the opening edge of the focusing portion via the rod. The vegetable packaging apparatus according to claim 1, wherein: