JPH03176321A - Apparatus for wrapping vegetable - Google Patents

Abstract

PURPOSE:To constantly pull a film on a supporting body smoothly by a head- forming vegetable and prevent the film from being broken by forming a supporting face part with a contact face with the film reduced in size on an upper face where the film of the supporting body is to be spread and supported. CONSTITUTION:A film F is supplied onto a supporting face part 7 of a supporting body 4, and the film is supported in a developed state on the supporting face part to close a guide hole 10 of the supporting body. In this case, the film is supported without being sealed by the supporting face part where a contact face with the film of the supporting body is reduced in size by numerous recesses 8 and numerous protruding strings 9. A head-forming vegetable A is supplied to the guide hole of the supporting body, the vegetable is lowered from the guide hole onto a vegetable receiving body 53 in a lower part together with the film while the vegetable smoothly pulls out the film from the supporting face part and is received there. Then the vegetable receiving body is lowered to a specific position and stopped as well as a film bundling mechanism 40 is operated.

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, this type of vegetable packaging device has a plate-shaped support for supporting a film, which is provided with a guide hole through which the head vegetables are lowered, and a vegetable receiver is placed in the lower part of the guide hole. There is a structure in which the support body is provided so as to be movable up and down, and a film binding mechanism is provided at the lower part of the support body to wrap the head vegetables on the vegetable receiver with a film and to bind the vegetables together.

Then, when a film is expanded and supported on the smooth surface of the support with the guide hole closed, and head vegetables are fed into the guide hole through this film, the head vegetables lift the film on the support under their own weight. The vegetable receiver is lowered to a predetermined position, and the film binding mechanism is activated so that the head vegetables are wrapped in the film by the film binding mechanism. This is what has become.

(Problem to be Solved by the Invention) In the above structure, the vegetable heads are dropped onto the vegetable receiver while pulling out the film on the support from the guide hole of the support, but at this time, the smooth surface of the support If the vegetables are wet due to dew, if the smooth surface of the support is wet during harvesting in the rain, or if the surface of the film itself that comes in contact with the support is wet, The problem is that the film adheres tightly to the smooth surface of the support, and the film cannot be pulled out smoothly due to the head vegetables, sometimes damaging the film, which may cause interruptions in the packaging process. be.

Therefore, the present invention was made in view of such problems, and it is possible to support the film on the support without coming into close contact with it, so that the film on the support is always drawn out smoothly by the head vegetables. Another object of the present invention is to provide a vegetable packaging device that prevents the film from being damaged and, therefore, allows the packaging operation to be carried out smoothly without interruption.

[Structure of the invention]

(Means for Solving the Problems) The vegetable packaging device of the present invention has a guide hole that guides the descent of the head vegetables, and a support that supports a packaging film developed so as to close the guide hole. , a vegetable receiver which is provided to be vertically movable relative to the lower part of the guide hole of the support and receives the head vegetables that are lowered from the guide hole via the film, and a film on the vegetable receiver is tied together; and a film bundling mechanism for wrapping the head vegetables on the vegetable receiver, and a support surface portion having a small contact surface with the film is formed on the upper surface portion of the support body for expanding and supporting the film.

(Function) The vegetable packaging device of the present invention first supplies a film onto the support surface of the support, and supports the film in a spread state on the support surface so as to close the guide hole of the support.

In this case, the film is supported without being in close contact with the support surface portion of the support, which has a small contact surface with the film.

Next, when the head vegetables are supplied to the guide hole of the support body through the film, the head vegetables are smoothly pulled out from the support surface part along with the film, and are passed through the guide hole into the vegetable receiver in the lower part. It descends onto the body and is received by it.

Next, the vegetable receiver is lowered to a predetermined position and stopped, and the film binding mechanism is activated, and the head vegetables are wrapped by this film while being narrowed by this film binding mechanism, and the binding part of this film is wrapped. be united.

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

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

Next, the support top plate 4 is formed of synthetic resin, and a support surface portion 7 with a small contact surface with the film F is formed on its upper surface portion for supporting the film F. It is formed into a mesh shape with a large number of recesses 8 and a large number of protrusions 9.

Further, a circular guide hole 1G for lowering vegetables is bored in the substantially central portion of the support top plate 4 so as to pass through the vegetable lowering hole 1G in the vertical direction.

Further, a pair of guide rails 11 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 10 interposed therebetween.
one slide body 13 through the front, rear, left and right guides 12.
is attached to one side in the front-rear direction so as to be movable forward and backward with respect to the guide hole lO. This one slide body 13 is formed of a plate-like member and has a substantially rectangular shape in plan view, and a focusing recess 1a is formed in a substantially semicircular shape in the middle portion of the inner end facing the lower part of the guide hole 10. has been done.

Further, a pair of guide rails 15 are fixed to the upper left and right sides of the support board 6 in parallel in the front-rear direction, and the other slide body 17 is attached to the left and right guide rails 15 via the front-rear, left-right and left-hand guides 16. At the other side, it is attached to the guide hole 10 so as to be freely movable forward and backward. The other slide body 17 is formed of a plate-like member and has a generally rectangular shape in plan view, and left and right side plates 18 connected to the lower portions of both left and right ends serve as guides for the front, rear, left, and right directions. 6, and a focusing recess 20 is formed in a substantially semicircular shape at an intermediate portion of the inner end of the other slide body 17 facing the lower part of the focusing recess 14 of the one slide body 13. It is formed. The inner side of the other slide body 17 overlaps with the inner lower part of the one slide body 13.

Also, the inner lower part of the focusing recess 14 of the one slide body 13 and the focusing recess 20 of the other slide body 17
A heater 21 for sandwiching and heat-sealing the bundled portion of the film from both sides is attached to the inner lower part of the , and a heater 21 is attached to the middle upper part of the one slide body 13 and the middle upper part of the other slide body 17. A film support mechanism 23 is fixed to the focusing recess 14.20, the film support mechanism 23 having a film support part 22 at its tip end that is elastically supported so as to be movable forward and backward relative to the focusing recess 14.20. Further, a rack 24 is formed in the front-rear direction at the bottom of one end in the left-right direction of the one slide body 13, and a rack 24 is formed on the supporting frame 19 at one end in the left-right direction of the other slide body 17. racks 25 are formed in the front-rear direction to face each other at a predetermined interval;
A pinion 26 is rotatably engaged between the upper and lower racks 24 and 25, and a horizontal pinion shaft 27 on which the pinion 26 is mounted is connected to a boss 28 protruding from the lower part of the support top plate 4. It is rotatably supported. Furthermore, a cylinder device 2 is provided at the upper part of one side in the left and right direction of the support substrate 6.
9 is fixed, one end of an interlocking piece 31 is fixed to the tip of a piston rod 30 of this cylinder device 29, and the supporting frame 19 having the rack 25 is connected to the other end of this interlocking piece 31.

As the piston rod 30 is expanded and contracted by the operation of the cylinder device 29, the pinion 2
6 and the front and rear slide bodies 13 via racks 24 and 25
．． 17 are relatively moved back and forth in the front-back direction, and the four focusing portions 14 and 20 at the opposing inner ends are opened and closed directly below the guide hole 10.

Further, a mounting base 32 is fixed to the middle upper part of the outer end of one side in the front-rear direction of the support board 6, and a left and right rotation center shaft 33 protruding from the left and right upper parts of the mounting base 32 is provided with a slider. Located at the lower part of the body 17, the base end of the opening/closing rod 34 is pivoted so as to be freely openable and closable in the left and right directions. In addition, a cam 35 that bulges inward is formed on the opposing inner sides of the base end portions of the left and right opening/closing rods 34.
A focusing protrusion 36 is formed on the opposing inner side of the distal end portion of 4, with the distal end side gradually bulging out, and these left and right focusing protrusions 36 are formed at the lower part of the front and rear slide bodies 13 and 17 when closed. They are joined directly below the guide hole IO.

Further, first operating pins 3 are provided at the left and right portions of the lower intermediate portion of the outer end of the one slide body 13 to open and close the left and right opening/closing rods 34.
7. A second operating pin 38 and a third operating pin 39 are provided protrudingly, and the first to third operating pins 37.3 on the left and right sides
8.39, the left and right opening/closing rods 34 are opened and closed, and when the left and right opening/closing rods 34 are open, their bases are connected to the first to third operating pins 37.38.39. It is supported by three points.

A film binding mechanism 40 is constituted by the front and rear slide bodies +a, iy, the front and rear film support mechanisms 23 of the front and rear heaters 211, and the left and right opening/closing rods 34.

Next, a bearing body 41 is fixed to the upper and lower portions of one side in the left and right direction of the mounting board 5 and the support board 6, and a screw punch 42 is rotatably supported upright between the upper and lower bearing bodies 41. Sprocket 43 and electric motor 4 fixed to the lower end of screw punch 42
An endless chain 46 is suspended between the second sprocket 45 and the second sprocket 45, and the electric motor 44 is fixed to the upper part of one side of the mounting board 5. In addition, the upper and lower bearing bodies 41
Bearing bodies are fixed to the upper and lower parts of the front and rear of the screwdriver, and guide rods (not shown) are installed between the front and rear upper and lower bearing bodies, and the front and rear guide rods are parallel to the screw punch 42. It is arranged.

Further, a series of thread grooves 47 are formed in the vertical direction in the screw punch 42, and a nut body 48 is screwed and supported in the thread groove 47 so as to be movable up and down.
9 are fixed together, and the connecting frame 5 of this elevating body 49
Guides protruding from the front and rear portions of the 0 are pushed through the guide rods so as to be vertically movable.

Further, a horizontal elevating support plate 51 protruding from the inner side of the elevating body 49 is provided with an insertion hole 52 vertically penetrating therethrough. The elevating body 49 having the elevating support plate 51 is
through the nut body 48 by the rotation of the screw punch 42, and
It is guided and supported by the front and rear guide supports and is raised and lowered relative to the guide hole IO.

In addition, a force C of the vegetable receiver 53 is applied to the elevating support plate 51 of the elevating body 49.
The vegetable receiver 53 is formed in a cylindrical shape, has an annular support portion 54 formed at the upper edge of its opening, and has a bottom portion pushed into the insertion hole 52 of the elevating support plate 51. A tapered insertion portion 55 protrudes, and a locking portion 56 that is locked to the upper edge of the opening 1 of the insertion hole 52 is horizontally formed on the upper outer periphery of the insertion portion 55 .

The vegetable receiver 53 is raised and lowered with respect to the guide hole IO by the raising and lowering movement of the elevating body 49, and a guide port 57 for guiding the raising and lowering of the vegetable receiver 53 is opened in the support substrate 6.

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

The elevating body 49 is suspended by the screw pestle 42 by operating the electric motor 44
The upper vegetable receiver 53 is raised to be disposed directly below the guide hole 10 of the support top plate 4, and the support surface portion 7 of the support top plate 4 is removed from the film supply device (not shown). A freshness-keeping film F is supplied on top, and this film F is expanded and supported on the support surface part 7 so as to close the guide hole 10. In this case, the film F is supported by the support surface portion 7 of the support top plate 4 which has a small contact surface with the film F without coming into close contact with it. Therefore, this film F uses a synthetic resin film, such as a polyethylene film, which contains a freshness-preserving agent that maintains the freshness of vegetables.

Next, when head-heading vegetables A such as cabbage, Chinese cabbage, and lettuce are supplied to the guide hole 10 of the support top plate 4 through the film F, the head-heading vegetables A support the film F along with the film F. While pulling it out from the surface part 7, its guide hole 10
A vegetable receiver 53 is waiting at the bottom of this guide hole 10.
The head vegetables A are lowered onto the annular support part 54 and received therein, and the head vegetables A are received with good stability on the support part 54 via the film F, as shown by the chain line in FIG. In this case, since the film F is not in close contact with the support surface part 7, it is smoothly pulled out from above the support surface part 7 as the head vegetable A descends.

Then, when the electric motor 44 is operated, the sprocket 43
．． 45 and an endless chain 46, a screw punch 42 is interlocked and rotated, and along this screw punch 42, through a nut body 48,
Then, the elevating body 49 and the vegetable receiver 53 on the elevating body 49 are lowered while being guided by the front and rear guide supports, and the vegetable head A is lowered below the guide hole 10, and the vegetable receiver 53 is lowered.
The film F between the annular supporting part 54 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 7 and the guide hole 10.

Then, as shown in FIG.
4 is stopped, and the movement of lowering the head vegetable A by the elevating body 4g is stopped.

Further, when the operation of the electric motor 44 is stopped, the cylinder device 29 is operated, and this piston rod 30 is extended, and the interlocking piece 3 is
1, the other slide body 17 having a rack 25 is interlocked, and this other slide body 17 is connected to a plurality of guides 1.
6 along the guide rail 15 toward the rear.

Moreover, this other slide body 17 is connected to the cylinder device 29
When the other slide body 17 is moved, the pinion 26 meshed with the rack 25 of the other slide body 17 is rotated, and one slide body I3 is interlocked via the rack 24 meshed with this pinion 26. is moved forward along the guide rail 11 via a plurality of guides 12. And the front and rear slide bodies 13.17
are moved toward each other directly below the guide hole 10, and the opposing focusing recesses 14 and 20 on the inner sides of the front and rear slide bodies 13 and 17 are brought close to each other while overlapping,
In addition, the film support portions 22 of the film support mechanisms 23 of the four facing focusing portions 14.20 are similarly approached from the front and back directions, and the front and rear focusing recesses 14.20 and the film support portions 22 cause The front and rear portions of the film F for packaging head vegetables are narrowed from the front and rear directions.

Further, as described above, when one slide body 13 is moved forward, the left and right opening/closing rods 34 are rotated by the first to third operating pins 37, 38, 39 of this one slide body 13. It is gradually rotated inward in the closing direction about the central axis of movement 33.

Furthermore, when the left and right opening/closing rods 34 are rotated inward, the focusing protrusions 36 on the inner side of the opening/closing rods 34 are gradually brought closer, and the left and right focusing protrusions 36 cause the upper part of the head vegetable A to The left and right parts of the film F that wraps the head vegetables A are squeezed from the left and right directions.

Therefore, as shown in FIG. 5, the peripheral side of the film F that wraps the head vegetables A is attached to the front and back slide body H via the head vegetables A on the support part 54 of the vegetable receiver 53.

17 focusing recesses 14 and 20, the film supporting section 22 that can move forward and backward, and the focusing protrusions 36 of the left and right opening/closing rods 34, the film F
The circumferential side part of the vegetables A is tied into a rod shape at the top of the head vegetable A.

Further, the upper part of the film F is tied into a rod shape, and the slide bodies 13 and 17 at the front and back of this rod-shaped binding part f
The heaters 21 come into contact with each other from the front and rear directions, and the rod-shaped binding part f is heat-sealed by the front and rear heaters 21, and the unnecessary film part F1 including the rod-shaped binding part f above this sealing part is fused. . As a result, the head-heading vegetables A are packaged in a state where the whole is covered with the film F.

Next, when the rod-shaped binding part f of the film F is heat-sealed, the piston rod 30 of the cylinder device 29 is contracted, and the one slide body 13 and the other slide body 1
7 are slid outward in a direction opposite to the direction in which the films F are bundled and away from each other, and the respective focusing recesses 14, 20 are opened. In this case, even if the front and rear slide bodies 13.17 are slid in the direction away from each other, the unnecessary film portion F1 continues to be held by the film support portions 22 of the front and rear fill support mechanisms 23, and the front and rear slide bodies 13. After IT is slid by a predetermined amount, the unnecessary film portion F1 is released from being held by the film supporting portion 22, and therefore the unnecessary film portion F1 is removed from the heater 2.
1 is reliably separated, and the unnecessary film portion F is dropped to a fixed position. Further, when one slide body 13 is slid outward, the left and right opening/closing rods 34 are rotated about the rotation center axis 33 by the first to third operating pins 37, 311, 39 of this one slide body 13. The focusing protrusions 36 are rotated outward in a direction away from each other, and the respective focusing protrusions 36 are opened. Therefore, the front and rear slide bodies 13, 17 and the left and right opening/closing rods 34 are returned to their starting positions in preparation for bundling the next film F.

Further, when the piston rod 30 of the cylinder device 29 is contracted, the electric motor 44 is operated, and the screw punch 42 is rotated in conjunction with this power, and the elevating body 49 is lowered along the screw punch 42 and the guide rods in front and behind the screw punch 42. At the same time, the head vegetables A wrapped by the film F on this elevating body 49
is lowered, and when the head vegetable A is lowered to a predetermined position as shown in FIG. 6, the operation of the electric motor 44 is stopped. Then, the wrapped vegetable head A on the vegetable receiver 53 is pushed outward from the vegetable receiver 53 by a pusher (not shown).

Next, in the embodiment described above, the case where the mesh-like support surface part 7 is formed on the upper surface of the support top plate 4 as a support body is described, but the present invention is not limited to this, and as shown in FIG. A large number of elastic or inelastic protrusions S9 are densely provided on the upper surface of the support top plate 4, and the large number of protrusions 59 constitute a support surface part 60 with a small contact surface with the film F. Good too. As a result, the film F is supported in a dotted manner by a large number of protrusions 59, and is prevented from coming into close contact with the upper surface of the support top plate 4.

Further, in each of the embodiments described above, the case where the support surface portion 6o consisting of the mesh-like support surface portion 7 and the numerous protrusions 59 is formed directly on the upper surface portion of the support top plate 4 as a support body has been described, but the present invention is not limited to this. Alternatively, a mesh plate made of synthetic resin or a support plate having a large number of protrusions may be superimposed on the upper surface of the support top plate 4.

〔Effect of the invention〕

According to the present invention, since the support surface portion with a small contact surface with the film is formed on the upper surface portion of the support for supporting the film in an expanded manner, when the film is expanded and supported on this support surface portion, the supporting surface portion is By forming a gap between the film and the film, it is possible to reliably prevent the film from coming into close contact with the support surface, and for this reason, the film on the support surface can be easily removed from the guide hole of the support by the head-heading vegetables. To enable the film to be pulled out smoothly at all times, to surely prevent the film from being damaged when the film is pulled out from the guide hole of the support, and to smoothly perform the wrapping work of head vegetables using the film. I can do it.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a sectional view of a vegetable packaging device, Fig. 2 is a perspective view of a part of the same support, and Fig. 3 is a section taken along line a-a in Fig. 1. The cross-sectional plan view of Figure 4 is the 1st
5 and 6 are explanatory views of the operation of the film binding mechanism, and FIG. 7 is a perspective view of a part of the support body showing another embodiment. 4. Support body, 7. 60. Support surface part, 10. Guide hole,
40...Film binding mechanism, 53...Vegetable receiver, A...
Heading vegetables, F... film. 480 1 do most [

Claims (1)

[Claims] (1) A support having a guide hole for guiding the descent of head vegetables and supporting a packaging film developed to close the guide hole, and a support for a lower part of the guide hole of the support. a vegetable receiver that is vertically movable and receives the head-heading vegetables that are lowered from the guide hole through the film;
and a film binding mechanism for binding the film on the vegetable receiver to package the head vegetables on the vegetable receiver, and a support surface portion having a small contact surface with the film on the upper surface portion for expanding and supporting the film of the support. A vegetable packaging device characterized in that: