JPH0662138B2 - Vegetable packaging equipment - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetable packaging device, for example, a device for automatically packaging headed vegetables such as lettuce and cabbage with a film.

(Prior Art) Conventionally, as a vegetable packing device of this type, for example, a guide hole for lowering headed vegetables is formed in a support for film support, and a vegetable receiver can be vertically moved below the guide hole. And a film bundling mechanism for bundling the headed vegetables on the vegetable receiver with a film and for bundling them.

Then, the film is developed and supported in a state in which the guide hole is closed on the smooth surface portion of the support, and the heading vegetables are supplied into the guide hole through the film, and the film on the support is formed by the heading vegetables. While pulling out by its own weight, drop the bulb vegetables on the vegetable receiver through the film,
The vegetable receiver is moved down to a predetermined position, the films are gathered together by a film binding mechanism, and the vegetables are packaged by the film.

(Problems to be Solved by the Invention) In the above structure, the heading vegetables are dropped onto the vegetable receiver while pulling out the film on the support from the guide hole of the support, but in this case, the smooth surface portion of the support is headed. If the surface of the support is wet when it is wet due to dew on the vegetables, or the surface of the support is wet during harvesting work in rainy weather, or if the film itself is wet, the surface of the support is smooth. There is a problem that the film adheres, the film is not pulled out smoothly by headed vegetables, and sometimes the film is damaged, which may cause the packaging operation to be interrupted on the way.

Therefore, the present invention has been made in view of such a problem, it is possible to support without adhering the film on the support, thereby supporting the heading vegetables by the heading vegetables when descending from the guide hole. An object of the present invention is to provide a vegetable wrapping device that can always smoothly pull out the film on the body and reliably prevent the film from being damaged, and thus can perform the packaging work without interruption in the middle. It is what

(Means for Solving the Problem) A vegetable packaging device of the present invention includes a support for supporting a packaging film which has a guide hole for guiding the descent of headed vegetables and is developed so as to close the guide hole. , A vegetable receiver which is provided so as to be vertically movable with respect to a lower portion of the guide hole of the support and receives the headed vegetables dropped from the guide hole through the film, and the film on the vegetable receiver is bound together. And a film bundling mechanism for wrapping the balled vegetables on the vegetable receiver, the support is formed in a plate shape having the guide hole, and the top surface of the support has a concavo-convex shape with a small contact surface with the film. The support surface portion of is formed.

(Operation) In the vegetable packaging device of the present invention, first, a film is supplied onto the support surface portion of the support, and the film is supported in a state where the film is developed on the support surface portion so as to close the guide hole of the support.
In this case, the film is supported without being in close contact with the uneven support surface portion having a small contact surface with the film of the support.

Next, when the headed vegetables are supplied to the guide holes of the support through the film, the headed vegetables are pulled out from the support surface portion together with the film, and the headed vegetables on the lower part of the vegetable receiver from the guide holes. It is dropped to and received. At this time, since the film is supported without coming into close contact with the uneven supporting surface portion, it can be smoothly pulled out from the guide hole by the heading vegetables.

Then, the vegetable receiver is lowered to a predetermined position and stopped, and the film tying mechanism is operated. The film tying mechanism squeezes the film and wraps the vegetable with the film, and the tying portion of the film. Are united.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a vegetable wrapping apparatus. In this vegetable wrapping apparatus 1, main pillars 2 are erected at predetermined intervals in front, back, left and right, and between the upper and lower ends of the main pillars 2 at the front and rear. And columns near the upper ends thereof are horizontally fixed to each other, and between the upper ends of the left and right columns 3, a support top plate 4 as a plate-like support is horizontally fixed to the left and right portions. A mounting substrate 5 is fixed between the lower ends of the columns 3, and a supporting substrate 6 is horizontally fixed between the upper ends of the left and right columns 3.

Next, the support top plate 4 is formed of a synthetic resin plate,
On the upper surface part where the film F is developed and supported, the film F
A supporting surface portion 7 having a small contact surface with is formed.
The supporting surface portion 7 is formed in a concavo-convex mesh shape by a large number of concave portions 8 and a large number of protrusions 9. Further, a circular guide hole 10 for dropping vegetables is formed in the substantially central portion of the support top plate 4 so as to vertically penetrate therethrough. Then, the film F
For example, a synthetic resin film such as a polyethylene film containing a freshness-retaining agent that retains the freshness of vegetables is used.

A pair of guide rails 11 are fixed in parallel in the front-rear direction through the guide holes 10 at the intermediate portions on the lower left and right sides of the support top plate 4, and the left and right guide rails 11 are guided by the guide rails 11. One slide body 13 is attached via 12 to the guide hole 10 at one side portion in the front-rear direction so as to be movable back and forth in the front-rear direction. Then, the one slide body 13 is formed of a plate-like member in a substantially rectangular shape in plan view,
A focusing concave portion 14 is formed in a substantially semicircular shape in an intermediate portion of an inner end portion facing the lower portion of the guide hole 10.

Further, a pair of guide rails 15 are fixed to the upper left and right sides of the support substrate 6 in parallel with the front-rear direction, and the other slide body 17 is attached to the left and right guide rails 15 via front-rear and left-right guides 16 in the front-rear direction. It is attached to the guide hole 10 on the other side thereof so as to be movable back and forth in the front-rear direction. The other slide body 17 is formed of a plate-like member in a substantially rectangular shape in a plan view, and left and right side plates 18 connected to lower left and right ends of the slide body 17 are attached to the left and right support frames 19 having the front, rear, left and right guides 16. The one slide body 13 of the other slide body 17 is fixed.
A converging recess 20 is formed in a substantially semicircular shape at an intermediate portion of the inner end portion of the converging recess 14 facing the lower part. Then, the inner portion of the other slide body 17 is the one slide body 13
It is designed to be mutually polymerized with respect to the inner lower part of.

A heater 21 is attached to the inner lower part of the converging recess 14 of the one slide body 13 and the inner lower part of the converging recess 20 of the other slide body 17 to heat-seal the film binding parts from both sides. ing. In addition, a film having a film support portion 22 at the tip end portion that is elastically held in advance with respect to the focusing concave portions 14 and 20 at the middle upper portion of the one slide body 13 and the middle upper portion of the other slide body 17 respectively. The support mechanism 23 is fixed.

Further, a rack 24 is formed in the front-rear direction at the lower part of one end in the left-right direction of the one slide body 13, and a support frame 19 at one end part in the left-right direction of the other slide body 17 is formed.
A rack 25 facing the rack 24 is formed in the front-rear direction at a predetermined interval. A pinion 26 is rotatably meshed between the upper and lower racks 24, 25, and a horizontal pinion shaft that hangs the pinion 26 is mounted.
27 is rotatably supported by a boss 28 formed in the lower portion of the support top plate 4. Further, a cylinder device 29 is fixed to an upper part of one side of the support substrate 6 in the left-right direction, and an interlocking piece is attached to a tip end portion of a piston rod 30 of the cylinder device 29.
One end of 31 is fixed, and the supporting frame 19 having the rack 25 is connected to the other end of the interlocking piece 31.

Then, the pinion 26 and the racks 24, 25 are extended by the piston rod 30 which is expanded and contracted by the operation of the cylinder device 29.
The front and rear slide bodies 13 and 17 are relatively advanced and retracted in the front-rear direction via the
20 is opened and closed immediately below the guide hole 10.

Further, a mounting base 32 is fixed to the upper middle portion of the outer end of the supporting substrate 6 on one side in the front-rear direction, and the left and right rotation center shafts 33 drilled in the upper left and right sides of the mounting base 32 have the other side. The base ends of the left and right opening and closing rods 34 located at the lower part of the slide body 17 are pivotally mounted so as to be openable and closable in the left and right directions. In addition, inwardly swelling cams 35 are respectively formed on the inner side portions of the base ends of the left and right opening / closing rods 34 that face each other, and the inner side portions of the tip end portions of the left and right opening / closing rods 34 that face each other are formed. Are formed such that the converging protrusions 36 are bulged toward the front end side, and the left and right converging protrusions 36 are closed at the front and rear slide bodies 13, 17 respectively.
It is designed to be joined directly below the guide hole 10 in the lower part of the.

Further, a first operating pin 37 for opening and closing the left and right opening and closing rods 34 on the left and right portions of the lower middle portion of the outer end of the one slide body 13,
A second operating pin 38 and a third operating pin 39 are provided so as to project, and the left and right opening / closing rods 34 are opened and closed by the first to third operating pins 37, 38, 39 on the left and right sides. When the left and right opening / closing rods 34 are opened, the base is supported by the three points of the first to third actuating pins 37, 38, 39.

The front and rear slide bodies 13 and 17, the front and rear heaters
A film binding mechanism 40 is constituted by the front and rear film support mechanisms 23 and the left and right opening and closing rods 34.

Next, a bearing body 41 is fixed to one upper and lower portions of the mounting substrate 5 and the supporting substrate 6 in the left-right direction.
A screw rod (42) is rotatably erected in between, and an endless chain (46) is rotatably suspended between a sprocket (43) fixed to the lower end of the screw rod (42) and a sprocket (45) of an electric motor (44). Is fixed to the upper part of one side of the mounting substrate 5. Further, bearing bodies are fixed to the upper and lower portions of the front and rear of the upper and lower bearing bodies 41, and guide struts (not shown) are erected between the front and rear and upper and lower bearing bodies. It is arranged parallel to the screw rod 42.

Further, a series of screw grooves 47 are formed in the screw rod 42 in the vertical direction, and a nut body 48 is screwed and supported in the screw grooves 47 so as to be vertically movable, and an elevating body 49 is provided inside the nut body 48. Guides that are integrally fixed and that are formed in the front and rear portions of the connecting frame 50 of the elevating body 49 are vertically movably inserted through the guide support rods. An insertion hole 52 is formed in the horizontal elevating support plate 51 protruding inside the elevating body 49 so as to vertically penetrate therethrough. Then, the lifting body having the lifting support plate 51
The screw 49 is moved up and down with respect to the guide hole 10 by the rotation of the screw rod 42 via the nut body 48 and guided and supported by the front and rear guide support rods.

Further, a vegetable receiver 53 is attached to the elevating and lowering support plate 51 of the elevating / lowering body 49, the vegetable receiver 53 is formed into a cylindrical shape, and an annular support portion 54 is formed at the upper edge of the opening thereof. A tapered insertion portion 55 inserted into the insertion hole 52 of the elevating and lowering plate 51 is projected at the bottom portion thereof, and the insertion hole is formed at the outer peripheral portion of the upper end of the insertion portion 55.
An engaging portion 56 engaged with the upper edge of the opening of 52 is formed horizontally. The vegetable receiver 53 is moved up and down with respect to the guide hole 10 by the ascending / descending operation of the elevator 49, and the support substrate 6 is provided with a guide port 57 for guiding the upward and downward movement of the vegetable receiver 53. .

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

The electric motor 44 is operated to raise the vegetable receiver 53 on the elevating body 49 suspended by the screw rod 42, and the vegetable receiver 53 is arranged immediately below the guide hole 10 of the supporting top plate 4 and the film is supplied. A film F for keeping freshness is supplied from a device (not shown) onto the support surface portion 7 of the support top plate 4, and the film F is developed and supported on the support surface portion 7 so as to close the guide hole 10. Let In this case, since the supporting surface portion 7 is formed in a concavo-convex mesh shape in which the contact surface with the film F is small, the film F is supported without adhering to the supporting surface portion 7 of the supporting top plate 4.

Next, when heading vegetables A such as cabbage, Chinese cabbage, lettuce are supplied to the guide holes 10 of the supporting top plate 4 through the film F, the heading vegetables A support the film F together with the film F. While pulling out from the surface portion 7, the guide hole 10 descends and is received on the annular support portion 54 of the vegetable receiver 53 waiting at the lower part of the guide hole 10, and the headed vegetable A is
As shown by the chain line in FIG. 1, the film is stably received on the supporting portion 54 through the film F. In this case, since the film F is not in close contact with the supporting surface portion 7, the film F is smoothly pulled out from the supporting surface portion 7 as the heading vegetables A fall.

Next, when the electric motor 44 is operated, the sprockets 43, 45
And the screw rod 42 is interlockedly rotated via the endless chain 46, and is guided along the screw rod 42 via the nut body 48 and to the front and rear guide rods to raise and lower the body 49 and the vegetable receiver on the body 49. The body 53 is lowered, the headed vegetables A are lowered below the guide holes 10, and the film F between the annular support portion 54 of the vegetable receiver 53 and the headed vegetables A is lowered with the headed vegetables A.
It is supported by this heading vegetable A and smoothly pulled out from the support surface portion 7 and the guide hole 10. Then, as shown in FIG. 4, when the upper part of the headed vegetable A is lowered to a predetermined position of the film binding mechanism 40, the operation of the electric motor 44 is stopped and the lowering operation of the headed vegetable A by the elevating body 49 is stopped. .

Also, when the operation of the electric motor 44 is stopped, the cylinder device
29 is operated, the piston rod 30 is extended, and the other slide body 17 having the rack 25 is interlocked by the piston rod 30 via the interlocking piece 31, and the other slide body 17 includes a plurality of guides 16. It is moved rearward along the guide rail 15 via.

When the other slide body 17 is moved by the cylinder device 29, the rack 25 of the other slide body 17 is moved.
The pinion 26 meshed with the pinion 26 is rotated, and the one slide body 13 is interlocked via the rack 24 meshed with the pinion 26. The one slide body 13 moves forward along the guide rail 11 via the plurality of guides 12. Will be moved towards. Then, the front and rear slide bodies 13 and 17 are moved toward each other directly below the guide hole 10 in a mutually close direction, and the converging concave portions 14 and 20 facing each other inside the front and rear slide bodies 13 and 17 are superposed. Similarly, the film supporting portions 22 of the film supporting mechanism 23 of the converging concave portions 14 and 20 facing each other are also brought close to each other in the front-rear direction, and the front and rear focusing concave portions 14 and 20 and the film supporting portion 22 of the headed vegetables A In the upper part, the front and rear parts of the film F that wraps the bulb vegetables A are squeezed from the front and rear direction.

Further, as described above, when one slide body 13 is moved forward, the first to third operation pins 37, 38, 39 of the one slide body 13 rotate the left and right opening / closing rods 34. It is gradually rotated inwardly in the closing direction about the moving center shaft 33. Further, when the left and right opening / closing rods 34 are rotated inward, the focusing projections 36 on the inner side of the opening / closing rods 34 are gradually brought closer to each other, and the focusing projections 36 on the left and right sides form a ball on the top of the headed vegetable A. The left and right parts of the film F that wraps the vegetables A are narrowed down in the left-right direction.

Therefore, as shown in FIG. 5, the peripheral side portion of the film F that wraps the headed vegetables A, through the headed vegetables A on the support portion 54 of the vegetable receiver 53, the converging concave portions 14 of the front and rear slide bodies 13, 17, 20
And the film supporting portion 22 and the focusing projections 36 of the left and right opening and closing rods 34 are squeezed substantially simultaneously from the front-rear direction and the left-right direction, and the peripheral side portion of the film F is bound in a bar shape on the upper portion of the headed vegetable A. .

In addition, the upper part of the film F is bound in a rod shape,
The heaters 21 of the front and rear slide bodies 13 and 17 come into contact with the rod-shaped bundling portion f from the front-back direction, and the rod-shaped bundling portion f is heat-sealed by the front and rear heaters 21 and above the sealing portion. The bar shape of the part is a binding part f
The unnecessary film portion F ₁ containing the is blown. This allows
The heading vegetable A is packaged in a state where the whole is covered with the film F.

Next, when the rod-shaped binding portion f of the film F is heat-sealed, the piston rod 30 of the cylinder device 29 is contracted, which is the opposite of the case where the one slide body 13 and the other slide body 17 bind the film F. The focusing recesses 14 and 20 are opened by sliding outward in the directions away from each other.

In this case, even if the front and rear slide bodies 13 and 17 are slid in the direction in which they are separated from each other, the unnecessary film portion F ₁ is continuously held by the film support portion 22 of the front and rear film support mechanism 23, and the front and rear slide bodies 13 are held. , 17 are slid by a predetermined amount, and the holding of the unnecessary film portion F ₁ by the film supporting portion 22 is released. Therefore, the heater 21 from unnecessary film portion F ₁ is reliably separated, unnecessary film portion F ₁ is dropped into place.

Further, when one slide body 13 is slid outward, the first to third actuating pins 37, 38, 39 of the one slide body 13 cause the left and right opening / closing rods 34 to rotate about the central axis.
The focusing projections 36 are opened by pivoting outwards in the directions away from each other around the center 33.
Therefore, the front and rear slide bodies 13 and 17 and the left and right opening and closing rods are
34 is returned to the start position in preparation for the next binding of the film F.

Further, when the piston rod 30 of the cylinder device 29 is contracted, the electric motor 44 is operated and the screw rod 42 is interlockedly rotated, and the elevating body 49 is lowered along the screw rod 42 and the guide rods before and after the screw rod 42, The heading vegetables A wrapped by the film F on the elevating body 49 are lowered, and when the heading vegetables A are lowered to a predetermined position as shown in FIG. 6, the operation of the electric motor 44 is stopped. Then, the packed headed vegetables A on the vegetable receiver 53 are put into the vegetable receiver 53 by a pusher (not shown).
It is pushed outward from the top.

Next, in the embodiment described above, the case where the support surface portion 7 having the concave-convex mesh shape is formed on the upper surface portion of the support top plate 4 as a support has been described, but the present invention is not limited to this, and as a support as shown in FIG. A large number of elastic or inelastic projections 59 are provided in a dense state on the upper surface of the supporting top plate 4 of the above, and the projections 59 form an uneven support surface portion 60 in which the contact surface with the film F is reduced. You may do it. As a result, the film F is supported in a dot shape by the large number of protrusions 59 and is prevented from being in close contact with the upper surface portion of the support top plate 4.

Further, in each of the above-described embodiments, the case where the uneven support surface portion 7 having the uneven mesh shape and the uneven support surface portion 60 including the plurality of protrusions 59 is directly formed on the upper surface portion of the support top plate 4 serving as a support has been described. However, the present invention is not limited to this, and an uneven mesh plate formed of a synthetic resin or an uneven support plate having a large number of protrusions may be superposed on the upper surface of the support top plate 4 to form the supporting surface portions 7 and 60. Good.

(Effects of the Invention) According to the present invention, the support for supporting the film is formed in a plate shape having a guide hole for lowering headed vegetables, and has an uneven shape in which the contact surface with the film is reduced on the upper surface portion. Since the support surface portion is formed, when the film is developed and supported on the support surface portion, a void portion is formed between the uneven portion of the support surface portion and the film, and the support portion is formed by the void portion. It is possible to reliably prevent the film from coming into close contact with the upper part of the film, and therefore, it is possible to always smoothly pull out the film on the support from the guide hole of the support by the balled vegetables when lowering the balled vegetables from the guide hole. It is possible to reliably prevent the film from being damaged when the film is pulled out. Therefore, it is possible to smoothly carry out the work of packaging head-blowing vegetables using the film. It is possible to provide a vegetable packaging device that can be performed without interruption.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a sectional view of a vegetable packaging device, FIG. 2 is a perspective view of a part of the same as above, and FIG. FIG. 4 is a cross-sectional plan view of FIG. 4, FIG. 4 is a vertical sectional side view of line 1b to FIG. 1b, FIGS. 5 and 6 are operation explanatory views of the film binding mechanism, and FIG. 7 is a support body showing another embodiment. It is a perspective view of a part of FIG. 4 ... Support, 7, 60 ... Uneven support surface, 10 ... Guide hole, 40 ... Film binding mechanism, 53 ... Vegetable receiver, A ...
… Headed vegetables, F …… Film.

Claims (1)

[Claims] 1. A support body having a guide hole for guiding the fall of headed vegetables and supporting a packaging film developed so as to close the guide hole, and a lower portion of the support body below the guide hole. On the other hand, a vegetable receiver which is provided so as to be movable up and down and receives a headed vegetable dropped from a guide hole through the film, and a film which binds the film on the vegetable receiver and wraps the headed vegetable on the vegetable receiver. And a bundling mechanism, wherein the support is formed in a plate shape having the guide hole, and an uneven support surface portion having a small contact surface with the film is formed on an upper surface portion thereof. Packaging equipment.