JPH03226421A - Vegetable-wrapping device - Google Patents

Abstract

PURPOSE:To achieve through wrapping with a wrapping film sufficiently round the head of a head forming vegetable by providing the title device with a film binding mechanism equipped with a recessed part for binding that binds the corners of the film while wrapping the head and a heater that applies heat sealing to the underside of a lower part of the bound part by holding the lower part from both sides. CONSTITUTION:The head (A) of a head forming vegetable placed on a support member 51 of a vegetable receiving body 50 is wrapped in a film F with peripheral edges of the film folded round the head roughly simultaneously from the front and the rear with recessed parts 11, 19 for binding of sliding members 10, 16, and from the right and the left with projections 35 for binding of opening-and-shutting members 33, and the peripheral edges of the film are then bonded. An under part of the bound part (f1), namely the part positioned under the bound part (f1) that is bound with the opening-and-shutting members 33 on the right and the left, is contacted from the front and the rear with heaters 23 of sliding members 10, 16 on the front and the rear and is sealed flat by heat sealing with the heaters 23. Then surplus part (f3) of the film F, including the bound part (f1) in rod-like shape on the upper part of the sealed part (f2) in flat shape, is cut by fusing. Thereby the head (A) is wrapped with the film F in a state that the whole body of the vegetable is completely sealed.

Description

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

(Prior Art) Conventionally, in this type of vegetable packaging device, for example, a vegetable receiver is provided at a lower part of a support plate having a guide hole for receiving head vegetables from the guide hole, and an upper part of this vegetable receiver is provided. A film bundling mechanism is provided for bundling packaging films, a synthetic resin film is stretched over the support plate, and the head vegetables are fed down through the guide hole onto the vegetable receiver, and the film is tied. A structure has been proposed in which a mechanism collects the film to package the head vegetables and also binds and seals the film.

(Problems to be Solved by the Invention) The film bundling mechanism configured as described above collects and binds films from both sides, but at this time, the edge of the film collecting member has a substantially semicircular shape. If the film is formed in a notched shape, the film cannot be narrowed down effectively and the film cannot be effectively bundled, and the seal tends to be insufficient. If the film is located at the edge of the film collecting member, the film will be heat-sealed in the upper part away from the head vegetables, making it difficult for the film to fit properly onto the head vegetables, and the heat sealing of the film There is a problem in that the portions largely protrude from the head vegetables, spoiling the appearance of the head vegetables.

Therefore, the present invention was made in view of these problems, and it is possible to sufficiently narrow and bundle a film for wrapping head vegetables, and also to seal the film in a state where the film is securely fitted to the head vegetables. and make this part as small as possible,
This makes it possible to securely bundle and bundle the films so that they are easy to seal.Also, the heat-sealed portion of the film is formed small and close to the head-heading vegetables, and this heat-sealed portion improves the appearance of the head-head vegetables. The object of the present invention is to provide a vegetable packaging device that does not damage vegetables.

[Structure of the invention]

(Means for Solving the Problems) The vegetable packaging device of the invention according to claim 1 includes a support body having a guide hole for guiding the descent of the head vegetables, and a guide hole provided at a lower part of the guide hole of the support body. a vegetable receiver for receiving head-heading vegetables; a packaging film that is expanded and supported on the support and is pulled out from the guide hole onto the vegetable receiver by the head-head vegetables; the support and the vegetable receiver; A film binding mechanism having a V-shaped focusing recess that is movable forward and backward between the edges and which focuses the film while packaging head vegetables; and a heater for sandwiching and heat-sealing the lower part of the converging portion of the film converged by the converging concave portion from both sides.

The vegetable packaging device according to the invention of claim 2 is the device according to the invention of claim 1, in which the film binding mechanism includes a front and rear slide body that can move forward and backward in the front and rear directions, and a left and right opening and closing body that can freely open and close in the left and right directions at the lower part of this slide body. A V-shaped focusing recess is formed in the center of the edge of at least the front and rear slide bodies, and a heater is protruded below the inner end of the front and rear focusing recesses, and is located below the left and right opening/closing bodies. It was established.

(Function) In the vegetable packaging apparatus according to the first aspect of the invention, a packaging film is supplied onto a support, and the film is expanded and supported on the support with its guide hole closed.

Next, when the head vegetables are supplied through the film to the guide hole of the support, the head vegetables are pulled out of the guide hole along with the film, and the vegetable receiver is placed in the lower part of the guide hole. It descends to the top and is received by it.

Then, when the film binding mechanism is activated, the periphery of the film on the vegetable receiver is sequentially narrowed down through the head vegetables by the opposing V-shaped converging recesses of the film binding mechanism, and the film wraps around the head vegetables. The vegetables are wrapped one after another, and the opposing V-shaped converging recesses are further moved toward each other, so that the periphery of the film is further narrowed and the entire circumference of the head vegetables is wrapped. The periphery of the bundle is bundled, and the lower part of the bundle is sandwiched between heaters on both sides and heat-sealed.

In the vegetable packaging device of the invention of claim 2, the periphery of the film is narrowed from the front and back directions by the focusing recesses of the front and rear slide bodies, and from the left and right by the left and right opening/closing bodies, so that the periphery of the film is narrowed from the front and back directions and from the left and right directions. They are collected and bundled almost simultaneously, and this bundled portion is heat-sealed by heaters on both sides at a position below the opening/closing body.

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

In the figure, 1 is a vegetable packaging device, and this vegetable packaging bag @ 1 has main pillars 2 erected at predetermined intervals in the front, back, left and right, between the upper ends of the front and rear main pillars 2, between the lower ends, and at the upper end. A support column 3 is horizontally fixed to each of the adjacent 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 is fixed horizontally to the upper end portions of the left and right columns 3. A support substrate 5 is horizontally fixed therebetween, and a mounting substrate 6 is horizontally fixed between the left and right columns 3 in the vicinity of their lower ends.

The support top plate 4 is made of synthetic resin, and the upper surface portion for supporting the packaging film F is provided with a large number of four parts and a large number of protrusions so as to reduce the contact surface with the film F. A mesh-like support surface portion is formed, and a circular guide hole 7 for lowering vegetables is vertically penetrated approximately at the center of the support top plate 4.

In addition, a pair of guide rails 8 are fixed in parallel in the front-rear direction at the intermediate portions of the lower left and right sides of the support top plate 4 with the guide holes 7 interposed therebetween. One slide body 10 is attached to the guide hole 7 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 10
is formed of a plate-like member and has a substantially rectangular shape in plan view, and a focusing portion 11 is formed in the middle portion of the end edge toward the lower part of the guide hole 7, and this focusing recess 11 is located at the opening end. The expansion slope portion 12 and the approximately 90 degree V-shaped portion 13 extending inwardly from the expansion slope portion 12 form an overall V-shape in plan view.

A pair of guide rails 14 are fixed to the upper left and right sides of the support board 5 in parallel in the front-rear direction, and the other slide body 16 is attached to the left and right guide rails 14 via front-rear, left-right and left-hand guides j5. At the other side, it is attached to the guide hole 7 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 19 is formed in the intermediate portion of the lower end edge of the focusing portion I+ of the one slide body 10 of the other slide body 16, and this focusing recess 19 is formed at the opening end. The expansion slope part 20 and the expansion slope part 2
The V-shaped portion 21 is formed in a V-shape as a whole in a plan view by a V-shaped portion 21 extending inwardly at approximately 90 degrees.

The focusing recess 19 of the other slide body 16 and the focusing recess 11 of the one slide body 10 are arranged to overlap each other in a vertical relationship.

Further, the film F is attached to the lower inner end of the V-shaped portion 13 in the focusing recess 11 of the one slide body 10 and the lower inner end of the V-shaped portion 21 in the focusing recess 19 of the other slide body 16 via brackets 22. A heater 23 is attached to sandwich and heat-seal the bundle from both sides.

Further, a rack 24 is formed in the front-rear direction at the bottom of one end of the one slide body 10 in the left-right direction, and a rack 24 is formed on the support frame 18 at one end of the other slide body 16 in the left-right direction. A pinion 26 is rotatably engaged between the upper and lower racks 24 and 25, and this pinion 26 is connected to the support via a pinion shaft. It is rotatably supported by a boss 27 protruding from the lower part of the top plate 4.

Further, a cylinder device 28 is fixed to the upper part of one side in the left-right direction of the support substrate 5, and one end of an interlocking piece 30 is fixed to the tip of the piston rod 29 of this cylinder device 28. A support frame 18 having the rack 25 is connected to the end.

When the piston rod 29 is expanded and contracted by the operation of the cylinder device 28, the front and rear slide bodies 1
0.16 are relatively moved back and forth in the front-back direction, and the opposing focusing recesses 11.19 are overlapped and opened and closed directly below the guide hole 7.

Further, a mounting base 31 is fixed to the middle upper part of the outer end on one side in the front-rear direction of the support board 5, and the left and right rotation center shafts 32 protruding from the left and right upper parts of the mounting base 31 are attached to the other slide. located at the lower part of the body 16, and the heater 2
The base end portion of an opening/closing body 33 located above the opening/closing body 33 is pivoted so as to be openable and closable in the left and right directions. In addition, a cam 34 that bulges inward is formed on the opposing inner sides of the base end portions of the left and right opening/closing bodies 33.
A focusing protrusion 35 is formed on the opposing inner side of the distal end of No. 3 so that the distal end side gradually bulges out, and when the left and right focusing protrusions 35 are closed, a guide hole is formed at the lower part of the front and rear slide bodies 10.16. It is designed to join directly below 7.

Further, a first operating bin 3 for opening and closing the left and right opening/closing bodies 33 is provided at the left and right portions of the middle lower part of the outer end of the one slide body 10.
6. A second operating bin 37 and a third operating bin 38 are protruded, and the first to third operating bins 36.3 on the left and right sides
7.38, the left and right opening/closing bodies 33 are configured to open and close, and when the left and right opening/closing bodies 33 are open, their bases are connected to the first to third operating bins 36, 37, and 38. It is supported by three points.

A film binding mechanism 39 is constituted by the front and rear slide bodies +0.16, the front and rear heaters 23, and the left and right opening/closing bodies 33.

Next, a bearing body 40 is fixed to the upper and lower portions of one side in the left and right direction of the support substrate 5 and the mounting substrate 6 at the lower end, and a screw punch 41 is rotatably erected between the upper and lower bearing bodies 40. The screw punch 41 is connected at its lower end to an electric motor 43 via an interlocking medium 42 so as to be rotated in forward and reverse directions, and the electric motor 43 is fixed on the mounting board 6. There is. Further, a guide rod (not shown) is provided between the bearing bodies fixed between the front and lower parts of the upper and lower bearing bodies 40.
are erected, and the front and rear guide support rods are arranged parallel to the screw punch 41.

Further, a series of thread grooves 44 are formed in the vertical direction in the screw punch 41, and a nut body 45 is screwed and supported in this thread groove 44 so as to be movable up and down.
6 are fixed together, and the connecting frame 4 of this elevating body 46
A guide protruding from the front and rear portions of 7 is inserted through the guide rod so as to be vertically movable.

Further, an insertion hole 49 is formed vertically through the horizontal elevating support plate 48 projecting to the inner side of the elevating body 46 . The elevating body 46 having the elevating support plate 48 is
through the nut body 45 by the rotation of the screw punch 41, and
It is guided and supported by front and rear guide rods and is raised and lowered relative to the guide hole 7.

Further, a vegetable receiver 50 is attached to the elevating support plate 48 of the elevating body 46, and the vegetable receptacle 50 is formed in a cylindrical shape, with an annular support portion 51 formed at the upper edge of its opening and at its bottom. A tapered insertion portion 52 inserted into the insertion hole 49 of the elevating support plate 48 projects, and a guide hole 53 is formed vertically through the insertion portion 52.
A locking portion 54 that is locked to the upper edge of the opening of the insertion hole 49 is formed horizontally on the outer circumference of the upper end of the insertion portion 52 .

The vegetable receiver 50 is raised and lowered with respect to the guide hole 7 by the raising and lowering operation of the raising and lowering body 46.
A guide opening 55 for guiding the raising and lowering of the vegetable receiver 50 is opened in the opening.

Next, an extrusion rod 56 is integrally vertically erected and fixed on the upper part of the mounting board 6 corresponding to the lowered position of the vegetable receiver 5D, and the upper end of this extrusion rod 56 is attached so as not to damage the head vegetables A. A cap 57 made of an elastic member such as rubber is fitted. Therefore, the push rod 56 is connected to the vegetable receiver 5.
0 is lowered, the guide hole 5 of the insertion portion 52
The vegetable receptacle 50 is inserted into an eccentric position deviated from the central portion 58 of the push rod 56 in the push rod 56 . Further, at the lowering stop position of the vegetable receiver 50, a chute 59 for guiding the head-heading vegetables A pushed out from above the vegetable receiver 50 is arranged to be inclined in the direction in which the head-head vegetables A are discharged. Furthermore, an air nozzle 60 for ejecting air is provided at the upper part of the one slide body 10 so as to face the inside of the V-shaped part 13 of the focusing recess 11. In addition, S in the figure represents the elevating body 46.
This sensor is used to stop the machine at the lowering stop position.

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

When the electric motor 43 is activated and the screw pestle 41 is rotated via the interlocking medium 42, the elevating body 46 suspended by the screw pestle 41 is raised, and the vegetable receiver 50 guides the support top plate 4. It is arranged directly under the hole 7, and makes this vegetable receiver 50 ready for receiving head vegetables A.

Next, the film F is supplied onto the support top plate 4, and the film F is expanded and supported on the support top plate 4 with the guide hole 7 of the support top plate 4 closed. In this case, the film F is supported on the support top plate 4 without coming into close contact with the support surface portion whose contact surface with the film F is reduced.

Next, the guide hole 7 blocked by the film F of the support top plate 4
When head-heading vegetables A such as cabbage, Chinese cabbage, and lettuce are supplied from above the film section, the head-head vegetables A are pulled out from the guide hole 7 along with the film F from the support surface section. The head vegetables A, which are lowered onto the annular support part 51 of the vegetable receiver 50 waiting at the lower part of the container 7 and received there, are placed on the support part 51 via the film F as shown by the chain line in FIG. It is received with good stability. In this case, since the film F is not in close contact with the support surface of the support top plate 4, it is smoothly pulled out from above the support surface as the head vegetables A descend.

Next, when the electric motor 43 is operated, the screw punch 41 is rotated in conjunction with the screw punch 41, and the screw is rotated along the screw punch 41 through the nut body 45.
Then, the elevating body 46 and the vegetable receiver 50 on the elevating body 46 are lowered guided by the front and rear guide supports, and the head vegetables A are lowered below the guide hole 7, and the annular shape of the vegetable receiver 50 is lowered. The film F between the supporting part 51 and the head-heading vegetable A is supported by the head-heading vegetable A as the head-heading vegetable A descends, and is smoothly pulled out from the support surface part and the guide hole 7. Then, as shown in FIG. 3, when the upper part of the head vegetable A is lowered to a predetermined position of the film binding mechanism 39, the operation of the electric motor 43 is stopped, and the lowering operation of the head vegetable A by the elevating body 46 is stopped. .

Further, when the operation of the electric motor 43 is stopped, the cylinder device 28 is operated, and this piston rod 29 is extended, and the interlocking piece 3 is
0, the other slide body 16 having a rack 25 is interlocked, and this other slide body 16 is connected to a plurality of guides 1.
5 and is moved rearward along the guide rail 14.

Moreover, this other slide body 16 is connected to the cylinder device 28.
When the other slide body 16 is moved, the pinion 26 meshed with the rack 25 of the other slide body 16 is rotated, and one slide body IC is interlocked via the rack 24 meshed with this pinion 26. is moved forward along the guide rail 8 via a plurality of guides 9. Then, the front and rear slide bodies 10.16 are moved toward each other directly below the guide hole 7, and the opposing focusing recesses 11° 19 on the inner sides of the front and rear slide bodies 10.16 are overlapped with each other. The front and rear portions of the film F on the vegetable receiver 50 are brought close to each other by the front and rear focusing recesses 11, the +9 expansion slope portions 12.20, and the V-shaped portions 13.21, so that the front and rear portions of the film F on the vegetable receiver 50 are aligned in the front and back direction at the upper part thereof through the head vegetables A. The vegetables A are sequentially narrowed down, and the head vegetables A are sequentially packaged using this film F.

Further, as described above, when one slide body 10 is moved forward, the left and right opening/closing bodies 33 are rotated by the first to third operating pins 36, 37, 38 of this one slide body 10. The left and right focusing protrusions 35 on the inner sides of the left and right opening/closing bodies 33 are gradually moved closer to each other as they are gradually rotated inwardly in the closing direction about the central axis of movement 32.
As a result, the left and right portions of the film F on the vegetable receiver 50 are sequentially squeezed from the left and right at the top through the head vegetables A, and the head vegetables A are sequentially wrapped by the film F.

Therefore, as shown in FIG. 4, the peripheral side of the film F that wraps the head vegetables A passes through the head vegetables A on the support part 51 of the vegetable receiver 50, and the focusing recesses If of the front and rear slide bodies 10, 16. 19 and the focusing protrusions 35 of the left and right opening/closing bodies 33 from the front and back and left and right directions, the head vegetables A are wrapped, and the circumferential side of the film F is bundled at the upper part of the head vegetables A. be united.

Further, the circumferential side portion of the film F is bundled, and the heater 23 of the front and rear slide bodies 10.16 is applied from the front and rear direction to the lower part of the bundle part f1, that is, the lower part of the bundle part bound by the left and right opening/closing members 33. The lower part of the binding part f is heat-sealed into a flat shape by contacting and being pressed and clamped by the heaters 23 before and after this, and includes the rod-shaped binding part f above the flat seal part f2. The unnecessary film portion f is fused and cut. As a result, head vegetable A
is packaged in a state where it is entirely covered with film F.

Next, when the film F is heat-sealed, the piston rod 29 of the cylinder device 28 is contracted, and the one slide body 10 and the other slide body 16 are separated from each other in the opposite direction to the case where the film F is bundled. The focusing recesses 11 and 19 are opened, and the unnecessary film portion f is released from being held.

Moreover, as the unnecessary film part f is released, air is ejected from the air nozzle 60 to this unnecessary film part f, and this unnecessary film part f is forcibly removed toward one side.

Therefore, the unnecessary film portion f is reliably separated from the heater 23, and the unnecessary film portion f is also separated from the heater 23.

is removed in place. Further, when one slide body 10 is slid outward, the left and right opening/closing bodies 33 are rotated about the rotation center axis 32 by the first to third operating pins 36, 37, 38 of this one slide body IO. The respective focusing protrusions 35 are rotated outward in a direction away from each other.
will be released. Therefore, the front and rear slide bodies 10.16
The left and right opening/closing bodies 33 are returned to their starting positions in preparation for the next binding of the film F.

Further, when the piston rod 29 of the cylinder device 28 is contracted, the electric motor 43 is operated, and the screw punch 41 is rotated in conjunction with this power, and the elevating body 46 is lowered along the screw punch 41 and the guide rods in front and behind the screw punch 41. At the same time, the head vegetables A wrapped by the film F on this elevating body 46
When the vegetable receiver 50 is lowered to a predetermined lowering position, the operation of the electric motor 43 is stopped and the lowering of the vegetable receiver 50 is stopped. When the body 50 is lowered to a predetermined position, the tip end portion of the pushing rod 56 having the cap 57 is inserted into the guide hole 53 of the insertion portion 52 of the vegetable receiver 50, and the vegetable receiver 50 is further lowered. As a result, the tip of the pushing rod 56 passes through the guide hole 53 and is inserted into the hollow part of the upper part of the guide hole 53, and therefore, immediately before the vegetable receiver 50 reaches the predetermined lowering stop position, the sixth As shown in the figure, the lower eccentric position of the packaged head-heading vegetables A on the vegetable receiver 50 comes into contact with the tip of the pushing rod 56, and this tip pushes the head-heading vegetables A to the opposite side of the eccentric position. The head vegetables A are automatically pushed out from above the vegetable receiver 50 onto a chute 59, and are discharged by this chute 59 in a predetermined discharge direction.

〔Effect of the invention〕

According to the invention of claim 1, the head vegetables are placed between the vegetable receiver that supports the head vegetables through the film and the support that expands and supports the film in preparation for the fall of the head vegetables, on the opposing edge portions. Since the film bundling mechanism having a V-shaped focusing concave portion for converging the film for wrapping vegetables is provided so as to be able to move forward and backward, the film for wrapping head vegetables can be sufficiently narrowed by the V-shaped converging concave portions facing each other. It is possible to gather the film together for easy sealing and securely bind it, and since a heater is provided protruding from the lower part of the film binding mechanism, which pinches and heat-seals the lower part of the film bundle, this opposing heater The film can be heat-sealed while the film is securely fitted to the head-heading vegetables, and the heat-sealed portion can be formed as small as possible and close to the head-heading vegetables. Therefore, it is possible to provide a vegetable packaging device that does not impair the appearance of head vegetables, and can therefore package head vegetables in a preferable overall state with a film.

Moreover, according to the invention of claim 2, since the film for packaging head vegetables can be gathered up from the front and rear directions and the left and right directions by the front and rear slide bodies and the left and right opening/closing bodies, it is possible to securely bundle the films. Heaters are provided protruding from the lower inner end of the V-shaped focusing recesses of the front and rear sliders, so that when the front and rear focusing recesses squeeze the film into a small bundle, the lower part of the bundle is pulled back and forth by the front and rear heaters. Heat sealing can be performed from any direction, and since this heater is provided protruding downward from the left and right opening/closing bodies, it is possible to bind and seal the vegetables as close as possible to the top of the head vegetables.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a front view of the vegetable packaging device, Fig. 2 is a cross-sectional plan view taken along line a-a in the same figure, and Fig. 3 is a cross-sectional plan view taken along line b-b in Fig. 1. FIG. 4 is an explanatory diagram of the operation showing the packaging state of the head vegetables same as above, FIG. 5 is a perspective view of the head vegetables packaged same as the above, and FIG. be. 4... Support body, 7... Guide hole, 10.16... Slide body, I+, +9... Focusing recess, 23... Heater 33
... Opening/closing body, 39. Film binding mechanism, 50. Vegetable receiver, A. Heading vegetables, F. Film. 1i L

Claims (2)

[Claims] (1) A support body having a guide hole for guiding the descent of the head vegetable; a vegetable receiver provided below the guide hole of the support body to receive the head vegetable from the guide hole; A packaging film that is supported and pulled out from the guide hole by the head vegetables onto the vegetable receiver, and a packaging film that is movably provided between the support body and the vegetable receiver and holds the head vegetables at opposing edges. a film binding mechanism having a V-shaped focusing recess for focusing the film while packaging; and a film binding mechanism protruding from the lower part of the film binding mechanism, which holds the lower part of the film bundled by the focusing recess on both sides. A vegetable packaging device characterized by comprising: a heater that heat-seals vegetables by sandwiching them between the vegetables. (2) The film binding mechanism consists of a front and rear slide body that can move forward and backward in the front and rear directions, and a left and right opening and closing body that can be opened and closed in the left and right directions at the lower part of this slide body, and has a V-shape at least at the center of the edge of the front and rear slide bodies. 2. The vegetable packaging device according to claim 1, further comprising a convergent concave portion formed therein, and heaters protruding from the lower inner ends of the front and rear convergent concave portions and located below the left and right opening/closing bodies.