JPH04215906A - Agricultural product packaging device - Google Patents

Abstract

PURPOSE:To package agricultural products continuously without using manual work by a method wherein a film feeding device is provided above a receiving element which develops and supports a film for packaging, and the film is pulled out on a supporting body in order and cut at a specified position, and fed by a specified size. CONSTITUTION:A film pull-out mechanism 43 is advanced toward a film let-out mechanism 46 at one side of a supporting body 4. A film (f) is pulled out orderly by making the holding part of the film pull-out mechanism 43 hold the pull-out end on the film let-out mechanism 46. Then, the film (f) is cut by a cutting blade 90 at a position which is close to the film let-out mechanism 46 to form the film (f) for packaging with a specified size, and the film (f) is developed and supported on the supporting body 4 in such a manner that the film (f) closes a guide hole 4. When an agricultural product is fed on the film (f), the agricultural product descends in the guide hole 4 while pulling out the film (f) by its own weight. Then, the film (f) is contracted from the right and left, and front and rear directions, and the agricultural product is packaged along its shape, and at the same time, the top part is gathered and sealed.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to an agricultural product packaging device, for example, for packaging head vegetables such as cabbage, Chinese cabbage, lettuce, and broccoli, and fruits such as summer tangerine and pomelo in a film. Relates to items that are automatically packaged by

(Prior Art) Conventionally, in this type of agricultural products packaging device, for example, a guide hole for lowering the agricultural products is formed in a support for supporting a film, and a receiver for receiving the agricultural products is vertically moved in the lower part of the guide hole. There is a structure in which the agricultural products on the receiving body are wrapped with a film and a film sealing mechanism is provided at the lower part of the support body to seal the film.

Then, when a film is expanded and supported on the support with the guide holes closed, and agricultural products are fed into the guide holes through this film, the agricultural products pull out the film on the support with their own weight and this The film is dropped onto a receiver through the film, and the receiver is lowered to a predetermined position, and the film sealing mechanism is activated to heat-seal the film wrapping the produce on top of the produce. This is what is meant to be done.

(Problems to be Solved by the Invention) In the above structure, when the film is expanded and supported on the support with the guide holes closed, a film that is preformed to match the size of the agricultural products to be packaged is used, In addition, since the film is spread and supported on the support by hand, it takes a lot of work to spread and support the film on the support, and it is difficult to continuously feed the film onto the support. However, there is a problem in that agricultural products cannot be continuously wrapped using films.

Therefore, the present invention has been made in view of these problems, and includes a film feeding device provided above a support for supporting a packaging film, and a film being drawn out from the film feeding device onto the support. At the same time, this film can be cut at a predetermined position to supply a film of a predetermined size onto a support, and packaging film can be continuously supplied onto the support without manual operation. The object of the present invention is to provide an agricultural product packaging device that allows agricultural products to be continuously wrapped using this film.

[Structure of the invention]

(Means for Solving the Problems) The agricultural product packaging device of the present invention includes a support body having a guide hole for lowering the agricultural products, and a support body provided below the guide hole of the support body to transport the agricultural products from the guide hole through a film. a collecting body for receiving the food; a film sealing mechanism provided above the collecting body for wrapping and sealing the agricultural products on the receiving body with a film;
a film feeding device provided above the support to feed the packaging film onto the support, the film feeding device being provided on one side of the support to freely feed out the film; a film dispensing mechanism that holds the dispensing end of the film of the supply mechanism and pulls out the film toward the other side of the support and deploys it on the guide hole; A film cutting mechanism is provided in the vicinity of the mechanism and has a cutting blade that cuts the film drawn out by the film drawing mechanism at a predetermined position.

(Function) In the agricultural product packaging apparatus of the present invention, the film drawing mechanism is advanced toward the film feeding mechanism on one side of the support, and the film drawing mechanism is stopped at the film drawing position. Then, the holding part of this film drawing mechanism holds the drawing end of the film of the film feeding mechanism, and the film drawing mechanism is retreated toward the other side of the support in the direction away from the film feeding mechanism, and the film is are sequentially drawn out from the film feeding mechanism, and the retracting operation of the film drawing mechanism is stopped in a state where the film is expanded and supported on the guide hole of the support.

Next, the film cutting mechanism is activated, and the cutting blade cuts the film in the vicinity of the film feeding mechanism, thereby forming a packaging film of a predetermined size. Then, when the film pull-out mechanism releases the hold on the pull-out end of the film, the packaging film cut to a predetermined size is expanded and supported on the support with its guide hole closed.

Next, when agricultural products are fed onto the film that has closed the guide hole of the support, the agricultural products are lowered through the guide hole while pulling out the film, and the agricultural products are fed into the receiver through the film.

Next, when the film sealing mechanism is activated, the film is collected from the left and right and front and rear directions at the upper part of the receiver, and the agricultural products are wrapped with this film according to their shape, and The film is gathered above the produce and the bundle is sealed.

(Example) Hereinafter, the configuration of an example of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a main body base, and wheels 2 are rotatably mounted on the lower portions of the main body base 1 on the front, rear, left and right sides. Further, a plate-shaped side frame 3 is integrally erected and fixed on the upper circumferential side of the main body base 1, and a plate-shaped support body 4 is fixed integrally and horizontally near the upper end of this side frame 3. A circular guide hole 5 for lowering agricultural products is bored in the center of the support 4,
A mesh is formed around the upper edge of the opening of the guide hole 5 so that the packaging film does not come into close contact with it.

Further, a plate-shaped mounting body 6 is horizontally fixed to the side frame 3 at a lower part of the support body 4, and this mounting body 6
A circular guide through hole 7 having a larger diameter than the guide hole 5 is bored in the center of the guide hole 5, located directly below the guide hole 5.

Further, 8 is a lifting mechanism, and this lifting mechanism 8 is connected to the mounting body 6.
A vertical screw rod 9 is rotatably supported between one side of the lower edge of the opening of the guide hole 7 and the main body base 1, and this screw rod 9 is connected via an interlocking medium 10. It is rotatably connected to an electric motor 11, which is fixed on the main body base 1.

Further, an elevating plate 13 is attached to the screw rod 9 through a nut body 12 so as to be able to rise and fall freely, and a column 14 is integrally erected and fixed to this elevating plate 13.
A supporting leg piece 17 of a receiving body 16 that receives agricultural products via the support leg piece 17 is pivotably attached to the receiving body 16 so as to be rotatable in the front and rear directions.

The receiving body 16 is large enough to be raised and lowered relative to the guide hole 7 and the guide hole 5, and is formed into a bowl shape with an open upper surface, and one side of the bottom of the receiving body 16 and the elevating plate 13
A coil spring 17 is stretched between the coil spring 17 and the receiving body 16 via the support shaft 15.
is horizontally supported at the upper end of the support column 14, and the receiver 16 is always held upwardly. A net member 18 made of a stretchable elastic material such as rubber is stretched over the opening edge of the receiver 16 to cover the upper surface of the opening of the receiver 16.
It is designed to be stretched along the shape of the agricultural product depending on the weight of the agricultural product. Further, an annular support part 19 made of an elastic material such as rubber or synthetic resin is integrally provided on the bottom of the receiving body 16 to support the lower surface of the agricultural products.

The agricultural products are then lowered through the net body 18 toward an annular support 19 at the bottom of the receiver 16, and are supported on the annular support and accommodated in the receiver 16.

Further, a first sensor 20 for controlling the operation of the electric motor 11 is suspended near the upper end of the screw rod 9, and the operation of the first sensor 20 causes the receiving body 16 to be moved through the nut body 12. The ascent of the receiver 16 is stopped at the upper limit position of the receiver 16, that is, the position where the receiver 16 receives agricultural products.

Further, a second sensor 21 for controlling the operation of the electric motor 11 is supported near the lower end of the screw rod 9, and the operation of the second sensor 21 causes the receiving body 16 to be moved through the nut body 12. The lowering of the receiver 16 is stopped at the lowering limit position of the receiver 16, that is, the position where the agricultural products in the receiver 16 are discharged.

Further, an actuating body 22 for rotating the receiving body 16 is vertically integrally provided on the main body base 1 directly below the downward direction of the receiving body 16, and the upper end of this operating body 22 is connected to the receiving body 16. At the upper end of the actuating body 22, an actuating part 23 for pushing up the bottom of the receiving body 16 is formed so as to be inclined forward and downward.

Further, a discharge chute 24 is disposed on the main body base 1 in the front part of the operating body 22, and receives the agricultural products discharged from the collector 16 by rotation of the collector 15, and discharges the agricultural products forward. It is formed so that it slopes downward toward the front.

Furthermore, 25 is a film sealing mechanism for wrapping agricultural products with a film and heat-sealing the bundled portion of the film, and this film sealing mechanism 25 is provided on the mounting body 6 above the guide hole 7. ing. In this film sealing mechanism 25, brackets 26 are integrally erected at the left and right end portions of the mounting body 6 facing the front and rear portions at a predetermined interval, and the upper and lower portions between the left and right front and rear brackets 26 are provided. A guide rod 27 is horizontally fixed in parallel and horizontally,
On one side of the upper front and rear guide rods 27 between the brackets 26 is a substantially V-shaped focusing recess 2 for focusing the film.
One rectangular plate-shaped slide body 29 having a groove 8 on the inside is attached so as to be slidable in the left-right direction, and the focusing recess 28 is moved forward and backward relative to the lower part of the guide hole 5. . In addition, the guide rods 2 at the front and rear of the lower part between the brackets 26
On the other side of 7, the other rectangular plate-shaped slide body 31, which has a substantially V-shaped convergence recess 30 for converging the film inside, is in close proximity to the lower surface of the one slide body 29. It is attached so as to be slidable in the direction, and the focusing recess 30 is moved forward and backward relative to the lower part of the guide hole 5. In addition, the pair of upper and lower slide bodies 2
A rack 32 is formed continuously in the left and right direction on each of the rear ends of the upper and lower racks 9 and 31, and a pinion 3 meshed with the upper and lower racks 32 is disposed between the inner ends of the upper and lower racks 32.
3 is rotatably mounted on an axis. Further, the tip of a piston rod 36 of a cylinder device 35 is attached to an interlocking arm 34 protruding from one side of the front end of the other, ie, lower, slide body 31.
is fixed on the mounting body 6. When the piston rod 36 is expanded or contracted by the operation of this cylinder device 35, the lower slide body 31 is moved forward and backward relative to the lower part of the guide hole 5, and this lower slide body 3
1, the rack 32, pinion 33 and rack 3
2, the upper slide body 29 is moved forward and backward relative to the lower part of the guide hole 5, and the lower side of the guide hole 5 is opened and closed by the focusing recesses 28 and 30 of the upper and lower slide bodies 29 and 31. It has become.

Further, the focusing recess 2 of the pair of upper and lower slide bodies 29, 31
A plate-shaped interlocking frame 37 is fixed horizontally and integrally to the lower part of the inner edge diaphragm at 8 and 30, respectively. The upper and lower film holding portions 38 and 39 are supported by springs (not shown) to protrude and move inwardly.
A heater body 40 is provided between them.

Furthermore, an intersection portion of a pair of front and rear opening/closing rods 41 which are vertically overlapped and which focus the film from the front and rear directions through a central rotation axis at the center of the outer end of the other slide body 31 is horizontally rotatable. The pair of opening/closing rods 41 are axially mounted, and are biased by a spring, and the springs cause the pair of opening/closing rods 41 to normally open wide in the front and back direction around the central axis of rotation. It is supported as such. Then, the left and right slide bodies 29, 31
The film for packaging agricultural products is focused from the left and right and front and back directions at the upper part of the agricultural products by the focusing recesses 28 and 30 and the front and rear opening/closing rods 41, and the upper and lower parts of this film collecting part are film holding part 38,
39, and is heat-sealed by left and right heater bodies 40.

Further, 42 is a film for packaging agricultural products, which is attached to the support 4.
This film feeding device 42 is configured to include a film pulling mechanism 43, a film pressing mechanism 44, a film cutting mechanism 45, and a film feeding mechanism 46.

The film pull-out mechanism 43 has a pair of round bar-shaped guide rails 47, which are located above the support body 4 and at the front of the side frame 3 in the opposite left and right direction. They are horizontally fixed horizontally and parallelly at the same level front and rear, facing each other between the front and back. Further, a horizontally long plate-shaped base body 49 is horizontally suspended at one end in the length direction of the pair of guide rails 47 via a pair of guides 48 so as to be movable forward and backward along the pair of guide rails 47. A large number of guide recesses 50 are formed on the inner side of the body 49 at predetermined intervals in the length direction, and each guide recess 5
A film support portion 51 having an anti-slip layer 51a for preventing the film from slipping is formed on the inner upper surface portion of the base body 49 between the two sides. Further, guide bodies 52 are fixed to the upper portions of the base body 49 near both ends in the longitudinal direction, and the lifting frame body 52 is connected to the guide bodies 52 at both ends via guide rods 53.
4 is attached so as to be movable up and down, and to the lower end of a support plate 55 which is integrally hung down inside the lower part of the elevating frame 54, a support plate 55 is press-contacted to the film support part 51 so as to be movable up and down, so as to sandwich the film therebetween. A round bar-shaped film pusher 56 made of an elastic material such as urethane resin is fixed to the film pusher 56, and guide portions 57 are cut out at positions corresponding to the guide recesses 50 of the film pusher 56. ing. Further, a cylinder device 58 is fixed to a substantially intermediate portion in the longitudinal direction of the base body 49, and an upper end portion of a piston rod 59 of this cylinder device 58 is fixed to a substantially intermediate portion in the longitudinal direction of the elevating frame 54. ing. Further, a rotary shaft 60 is horizontally mounted horizontally and horizontally at the same level so as to be rotatable horizontally and parallelly on the left and right portions of the side frame 3 that face each other in the front-rear direction, and sprockets are attached to the vicinity of both ends of the rotary shaft 60 on the left and right portions, respectively. 61 is fixed, and an endless chain 62 is suspended between the opposing left and right sprockets 61 so as to be freely rotatable, and a length of the base body 49 is attached to the upper part of one side of the rotation upper part of the left and right endless chains 62. Both ends in the direction are connected. Further, a sprocket 63 is fixed to one end of the rotating shaft 60 on the one side, and an electric motor 64 that can freely rotate in forward and backward directions is connected to the sprocket 63.
An endless chain 66 is rotatably suspended between the sprocket 65 and the motor 64 is fixed to the side frame 3.

Furthermore, the cylinder device 58 includes a piston rod 5.
A first switch SW1 is provided on one side of the side frame 3, and one end outer edge 49a in the length direction of the base body 49, which has been moved to the end of the film drawer, is provided on one side of the side frame 3. A second switch SW2 is provided.

Further, the film holding mechanism 44 has a pair of round bar-shaped guide rails 67, and the pair of guide rails 67 are as follows:
It is located above the support body 4 and horizontally and parallelly fixed at the same level to the opposite front side of the side frame 3 by a support 68. Further, a horizontally long movable frame 70 is suspended from the pair of guide rails 67 via guides 69 so as to be movable forward and backward.

A horizontal support substrate 71 formed at the upper end of the movable frame 70 has a long guide groove 72 formed in the length direction, and support legs 73 at both ends are formed at the opening edge of the long guide groove 72 in the length direction. A horizontal rod 74 is horizontally fixed together through the horizontal rod 74, and a large number of support pieces 75 are provided in the guide grooves 72 in the longitudinal direction of the horizontal rod 74 at the same intervals as the guide recesses 50 of the base body 49. It is integrally and horizontally protruded from the upper part. Further, a cylinder device 77 is erected and fixed on a horizontal mounting board 76 formed at the lower end of the movable frame 70.
An elevating rod 79 is fixed horizontally to the upper end of the piston rod 78 of this cylinder device 77, and the upper end of the elevating rod 79 in the length direction is made of urethane resin at the same intervals as the supporting pieces 75. A large number of round bar-shaped film pushers 80 made of an elastic material such as resin are integrally erected, and each film pusher 80 is engaged in each of the guide recesses 50 and the guide portions 57. , and is formed with a cross-sectional shape that is inserted into the guide groove 72 so as to be freely raised and lowered, and at the upper end of each film pushing body 80, a lower part of each support piece 75 is provided with a cross section that can be raised and lowered so as to sandwich the film therebetween. Pressing surface 8 that comes into contact with pressure
1 is formed horizontally.

Furthermore, a third switch SW3 is provided above one end in the longitudinal direction of the support substrate 71 and is operated by the outer edge 49a of one end of the base body 49. A fourth switch SW4 is provided.

Further, the film cutting mechanism 45 has a cylinder device 82 attached to the middle lower part of the mounting board 76 of the movable frame 70 in the longitudinal direction, and a piston rod 83 of this cylinder device 82 extends and contracts above the mounting board 76. The intermediate portion of a lifting rod 84 is horizontally fixed to the upper end of the piston rod 83. Further, the lower ends of support rods 86 on both sides of the elevator frame 85 are integrally fixed to the upper portions of both ends of this lifting rod 84.
are inserted into guide holes 87 on both sides formed in the support substrate 71 of the movable frame 70 via pushers 88 so as to be vertically movable.

Further, a cutting blade 90 is attached to a support plate 89 that is integrally provided vertically at the inner lower part of the lifting frame 85 and extends in the length direction of the support plate 89. Further, guide pins 92 are provided protrudingly on both sides of the outer side of the support plate 89, and a blade cover body 94 is inserted into the guide pins 92 on both sides through vertically long guide holes 93 through which the guide pins 92 are inserted. is supported so as to be movable up and down, and a bent piece 95 bent toward the cutting blade 90 is formed at the lower end of this blade cover body 94 . Further, the upper portions of both ends of the blade cover body 94 are provided with springs 96.
Supported by Furthermore, the movable frame 70
An elongated rubber cutting base 97 is integrally fixed to the upper opening edge of the guide groove 72 of the support substrate 71 along the guide groove 72, and the blade cover body is attached to the upper surface 98 of the cutting base 97. When the bent pieces 95 of 94 are engaged, the cutting blade 90 is lowered from the vertical surface 99 of the cutting base 97 into the long guide groove 72. Further, pushers 100 are attached to both sides of the mounting board 76 of the movable frame 70, and guide rods 10 are provided on both sides of the pushers 100, and guide rods 10 are vertically protruded from the lower portions of both sides of the elevating rod 84.
1 is inserted through it so that it can be raised and lowered freely. Furthermore, the cylinder device 82 is provided with a fifth switch SW5 that is activated by the expansion and contraction of the piston rod 83.

Next, a nut body 102 is fixed to the upper part of one side of the support substrate 71 of the movable frame 70.
02, a screw shaft portion 10 formed at one end of the rotating shaft 103
The other end of this rotating shaft 103 is rotatably inserted and supported by the side frame 3, and an operating handle 105 is attached to the other end of this rotating shaft 103. There is.

Further, the film feeding mechanism 46 includes a film feeding shaft 106 provided at an upper part outside of the film cutting mechanism 45.
The film feed shaft 106 is rotatably mounted horizontally on the side frame 3, and a film roll F around which a film f is wound is attached to the film feed shaft 106 so as to be freely payable. Further, a plurality of guide rollers 10 are provided at the lower part of the film feeding shaft 105 to guide the feeding of the film f.
7 are rotatably mounted in parallel. On the film f of the film roll F, detection marks 109 are displayed on both edges in the width direction at predetermined intervals to detect the pull-out length by a sensor 108, and the light emitting elements 108a and 108b of the sensor 108 are , are provided vertically opposite each other on both sides of the film drawer side of the film holding mechanism 44.

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

First, in order to supply the packaging film f to the guide hole 5 of the support 4 when packaging agricultural products such as various head vegetables and fruits, when the electric motor 64 is driven to rotate in the normal rotation direction, this power drives the sprocket. Endless chains 62 on both sides between opposing sprockets 61 are simultaneously rotated at the same speed via an endless chain 66 between 63 and 65, and a base body 94 is connected between the endless chains 62 on both sides. is moved toward the film holding mechanism 44 while being guided by guide rails 47 on both sides. Then, each guide recess 50 in the base body 49 of this film pull-out mechanism 43 and the guide part 57 in the film pusher 56 engage with each film pusher 80 of the film press mechanism 44, and one end outer edge 49a of the base body 49 The third support substrate 71 in the film holding mechanism 44 is
switch SW3 is activated, driving of the electric motor 64 is stopped, and movement of the film drawing mechanism 43 is stopped.

Next, the cylinder device 58 of the film pull-out mechanism 43 is activated, the piston rod 59 is contracted and lowered, and the elevating frame 54 is lowered along the guide body 52 via the guide rod 53. The film presser 56 at the lower end of the support plate 55 is lowered onto the film supporter 51 of the base member 49 . And this film support part 51
The drawn-out end portion of the film f, which has been clamped in advance by each support piece 75 of the film presser mechanism 44 and the pressing surface 81 of each film presser 80, is held between the film presser 56 and the film presser 56.

When the pulled-out end of the film f is clamped by the contraction and descent of the piston rod 59 of the cylinder device 58, the operation of the piston rod 59 is detected by the first switch SW1, and an output signal from the first switch SW1 is detected. The cylinder device 77 of the film holding mechanism 44 is actuated by this. Then, the piston rod 78 of this cylinder device 77 is contracted and lowered, the elevating rod 79 and each film pushing body 80 are lowered in conjunction with each other, and the pressing surface 81 of each film pushing body 80 is spaced downward from each supporting piece 75, The holding of the drawn-out end portion of the film f by each support piece 75 and each pressing surface 81 is released.

Furthermore, when the piston rod 78 of the cylinder device 77 is contracted and lowered to release the film f from its grip at the drawn-out end, the operation of the piston rod 78 is switched to the fourth switch SW.
4, and the motor 64 is rotationally driven in the reverse direction by the output signal of this fourth switch SW4. The endless chain 66 is driven by the power of the electric motor 64.
is interlocked and rotated in the reverse direction, and the endless chains 62 on both sides are similarly rotated in conjunction in the reverse direction at the same distance, and the film pull-out mechanism 4 between the endless chains 62 on both sides
3 is returned to the direction away from the film holding mechanism 44 while being guided by the guide rails 47 on both sides, and the film supporting section 5 is moved back by the film pulling mechanism 43.
1 and the film pushing body 56, the film f whose unwinding end portion is held between the film roll F and the film pushing body 56 is sequentially pulled out while the film roll F is rotated in the unwinding direction. When pulling out this film f,
An anti-slip layer 51a is formed on the film support part 51, and a film pusher 56 made of an elastic material such as urethane resin is pressed onto the film support part 51 to clamp the drawn-out end of the film f. Therefore, the drawing end of the film f is securely clamped without slipping off, and the film f is drawn out smoothly.

When the film drawer mechanism 43 is returned to the film drawer terminal end, the outer edge 49 of one end of the base body 49
The second switch SW2 is actuated by a, and the output signal of the second switch SW2 stops the driving of the electric motor 64, thereby stopping the return movement of the film drawing mechanism 43.

Further, when the return movement of the film pull-out mechanism 43 is stopped,
Light emitting element 108a and light receiving element 108b of sensor 108
The detection mark 109 of the pulled-out film f is detected by this sensor 108, and the cutting position of the film f is confirmed by this sensor 108, and the cylinder device 82 of the film cutting mechanism 45 and the film holding mechanism are detected by the detection signal from this sensor 108. 44 cylinder devices 77
is activated.

As the piston rod 83 of the cylinder device 82 of the film cutting mechanism 45 contracts and descends, the elevating frame 85 is lowered via the elevating rod 84 and the supporting rods 86 on both sides, and the supporting plate 89 of the elevating frame 85 is lowered. Cutting blade through 9
0 and the blade cover body 94 are lowered toward the film f,
The cutting blade 90 is lowered toward the vertical surface 99 of the cutting base 97 on the support substrate 71 of the movable frame 70, and the blade cover body 94 is lowered toward the upper surface 98 of the cutting base 97.

Further, as the piston rod 78 of the cylinder device 77 of the film holding mechanism 44 extends and rises, each film pressing body 80 is lifted via the lifting rod 79, and the pressing surface 81 of each film pressing body 80 is moved through the film f to each support. The film f is pressed against the lower surface of the piece 75, and the film f is held between each pressing surface 81 and each support piece 75. Therefore, the film f is held at the set position by the downward movement of the cutting blade 90 of the film cutting mechanism 46, with the drawn end portion being held by the film drawing mechanism 43 and the cutting portion being held by the film pressing mechanism 44. The film f is cut, and the vicinity of the cut portion of the film f continues to be held between the pressing surfaces 81 of the film holding mechanism 44 and the supporting pieces 75 as the drawing end of the film f in preparation for drawing out the next film f.

Next, the cylinder device 82 of the film cutting mechanism 45 is activated, and the piston rod 83 is extended and raised, thereby lifting the lifting frame 85 via the lifting rod 84, and the support plate of the lifting frame 85. A cutting blade 90 and a blade cover body 94 provided at 89 are lifted up from the film cutting section. Then, the cutting blade 90 and the blade cover body 94 are raised and returned to the starting position, the operation of the cylinder device 82 is stopped, and the film cutting mechanism 45 is stopped.
Prepare for the next cutting of film f.

Further, when the cutting blade 90 and the blade cover body 94 of the film cutting mechanism 45 are lifted and returned, the film drawing mechanism 43
The cylinder device 58 is actuated, and the piston rod 59 is extended and raised. And this piston rod 5
9, the lifting frame 54 is raised, and the film pushing body 56 of the support plate 55 is lifted from the film supporting part 51 of the base body 49, and the film f is pulled out by the film pushing body 56 and the film supporting part 51 The clamping is released, the operation of this cylinder device 58 is stopped, and this film drawing device 43 is prepared for drawing out the next film f.

The produce is then cut to the length necessary for packaging.
The packaging film f released from the holding portion is supplied onto the guide hole 5 of the support 4 in a spread state so as to close the guide hole 5.

Next, when the electric motor 11 is activated and the screw rod 9 is rotated via the interlocking medium 10, the lifting plate 13 suspended from the screw rod 9 via the nut body 12 is guided by the screw rod 9 and raised. At the same time, the receiving body 16 on the elevating plate 13 is lifted from the guide hole 7 of the mounting body 6 to just below the guide hole 5 of the support body 4. Then, the elevating plate 13 is connected to the first sensor 2
0, the first sensor 20 is actuated by the elevating plate 13, and the first sensor 2
The operation of the electric motor 11 is stopped by the output signal of 0, and the lifting of the lifting plate 13 is stopped, and the receiving body 16 is placed directly under the guide hole 5 of the support body 4, and this receiving body 16 is used to receive agricultural products. Prepare.

Next, the guide hole 5 is closed with the film f on the support 4.
For example, if agricultural products are fed with the cut side facing upward from above the film f, the agricultural products will be
While pulling out the film f along with the film f, it is lowered from the guide hole 5 onto the net body 18 of the collector 16, and the net body 18 is pulled out from the collector 16 by the weight of the agricultural products.
The net body 18 narrows the film f along the outer shape of the agricultural products, and the agricultural products are received in the receiving body 16, and the lower part of the agricultural products is attached to the annular support part 19 at the bottom. supported above.

Next, when the electric motor 11 is operated and the screw rod 9 is rotated, the lifting plate 13 and the receiving body 1 are guided by the screw rod 9.
6 is lowered, and the agricultural products are lowered below the guide hole 7 of the support 6, and the film f between the receiver 16 and the agricultural products is pulled out from the guide hole 5 as the agricultural products descend, and the upper end of the agricultural products is lowered. When the part is lowered to the lower part of the film sealing mechanism 25, the detection means A and B are activated, and the output signals from the detection means A and B stop the operation of the electric motor 11, and the agricultural products are removed by the lifting plate 13. The lowering movement of is stopped.

Further, when the operation of the electric motor 11 is stopped, the cylinder device 35 is activated, and this piston rod 36 is extended, and the lower slide body 31 is moved outward along the lower front and rear guide rods 27 by this piston rod 36. from the inside toward the guide hole 5.

Furthermore, when the lower slide body 31 is moved toward the guide hole 5, the pinion 33 meshed with the rack 32 of the lower slide body 31 is rotated, and the upper The upper slide body 29 is moved along the upper front and rear guide rods 27 from the outer side toward the lower part of the inner guide hole 5. Then, the left and right upper and lower slide bodies 29 and 31
The opposing focusing recesses 28 and 30 are brought close to each other while overlapping, and the left and right parts of the film f on the receiver 16 are directed through the agricultural products by the narrowing edges from the widening parts of the left and right focusing recesses 28 and 30. At the top, the images are narrowed down sequentially from left to right.

Further, as described above, the lower slide body 31 is connected to the guide hole 5.
, the pair of opening/closing rods 41 are interlocked with the movement of the lower slide body 31 toward the guide hole 5, and the pair of opening/closing rods 41 are gradually rotated closed. By means of the opening/closing rod 41, the front and rear portions of the film f on the receiving body 16 are sequentially bound from the front and rear directions through the agricultural products and above the agricultural products.

Therefore, the film f on the receiver 16 is narrowed through the agricultural products to the upper part of the agricultural products from the left-right direction and the front-rear direction by the focusing recesses 28, 30 of the left and right sliders 29, 31 and the pair of front and rear opening/closing rods 41, The upper and lower portions of the condensed portion of the film f are held substantially simultaneously from the left and right directions.

In addition, when the left and right slide bodies 29 and 31 are further overlapped and approached while holding the upper and lower parts of the condensing part of the film f, the heater bodies 40 of the left and right interlocking frames 37
is advanced toward the convergence part of the film f, and the convergence part of the film f is sandwiched and heat-sealed by the left and right heater bodies 40, and the excess unnecessary film part above the seal part is removed by melting. .

Next, when the film f is heat-sealed and the piston rod 36 of the cylinder device 35 is contracted, the lower slide body 31 and the upper slide body 29 focus the film f from the left and right directions. The focusing recesses 28 and 30 are opened in the left-right direction by being slid outward in the direction of separating from each other, and the pair of opening and closing rods 41 are rotated outward in conjunction with the lower slide body 31 to open them. Ru. In addition, the upper and lower slide bodies 29,
31 are slid outward in the direction of separating them from each other,
The interlocking frame 37 is interlocked therewith, and the heater body 40 is retracted outward. Therefore, the upper, lower, left and right slide bodies 29, 31, and the pair of front and rear opening/closing rods 41 are opened wide outward from directly below the guide hole 5 of the support 4, and are moved to the starting position in preparation for sealing the next film f. and prepares for the next advancement of the receiving body 16 directly below the guide hole 5.

Next, when the piston rod 36 of the cylinder device 35 is contracted and the film sealing mechanism 25 is returned to the starting position, the electric motor 11 is operated again and the screw rod 9 is rotated in conjunction with the screw rod 9. 13 is lowered, and at the same time, the receiving body 16 containing the agricultural products wrapped by the film f on this lifting plate 13 is lowered, and this lifting plate 1
3 is lowered to a position facing the second sensor 21 at a predetermined lowered position, the second sensor 21 is actuated by the elevating plate 13, and the operation of the electric motor 11 is controlled by the output signal of the second sensor 21. stopped and the elevator plate 13
At this time, when the receiver 16 is lowered to a predetermined position, the bottom of the receiver 16 touches the operating body 22.
It hits the operating part 23 at the upper end, and the operating part 23 pushes up the bottom of the receiver 16, and the receiver 16 moves toward the front about the support shaft 15 of the support column 14 against the coil spring 17. It is rotated and lowered.

When the receiver 16 is rotated approximately 90 degrees and lowered, the packaged agricultural products in the receiver 16 are automatically discharged from inside the receiver 16 onto the discharge chute 24, and the agricultural products are transferred to the discharge chute 24. 24, it is automatically ejected to the front of the machine.

Further, when setting the cutting position of the film f, when the operating handle 105 is rotated, the nut body 102 is moved forward and backward along the screw shaft portion 104 and the movable frame 70 is moved in accordance with the rotation direction. A pair of guide rails 6
7, and the positions of the film holding mechanism 44 and the film cutting mechanism 45 of this movable frame 70 are adjusted and set. Therefore, the cutting position of the film f can be easily set, and the film of a desired size can be cut. f can be formed.

〔Effect of the invention〕

According to the present invention, a film supplying device is provided above a receiver for supporting a packaging film, and the film of the film feeding mechanism of this film feeding device is sequentially transferred onto a support by a film drawing mechanism that can move forward and backward. The film can be reliably pulled out, and the film can be reliably cut from a predetermined position by a film cutting mechanism and supplied onto a support as a packaging film of a predetermined size. The film can be continuously fed onto a support without manual work, and agricultural products can be continuously packaged with this film.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of the agricultural product packaging device, Fig. 2 is an enlarged sectional view taken along line a-a of the same, and Fig. 3 is a film of the same as above. FIG. 4 is a partially cutaway plan view in the direction of arrow b in FIG. 3, and FIG. 6 is a side view in the direction of arrow c in FIG. 3. 3 is a cross-sectional view taken along the line d-d, FIG. 7 is a partial plan view showing the relationship between the film pull-out mechanism and the film holding mechanism, and FIG. 8 is a cross-sectional view taken along the line e-e in FIG. 9 is a perspective view showing the mutual relationship in FIG. 7, FIG. 10 is an explanatory view of the film drawn out state, FIG. 11 is an explanatory view showing the same film holding state, and FIG. 12 is a partial perspective view showing the film. It is a diagram. 4... Support body, 4... Guide hole, 16... Receiver, 25. Film sealing mechanism, 42... Film supply device, 43... Film drawing mechanism, 45... Film cutting mechanism, 46... Film feeding mechanism, 90... Cutting blade , f...film.

Claims (1)

[Claims] Claim 1: A support having a guide hole for lowering agricultural products;
A receiver provided below the guide hole of the support body to receive the agricultural products from the guide hole via a film, and a film seal provided above the receiver to wrap and seal the agricultural products on the receiver with the film. and a film supply device provided above the support to supply the packaging film onto the support, the film supply device being disposed on one side of the support to supply the packaging film onto the support. a film feeding mechanism provided to be freely fed; a film drawing mechanism capable of moving forward and backward; holding the drawing end of the film of the feeding mechanism and drawing the film toward the other side of the support and deploying it on the guide hole; and a film cutting mechanism provided in the vicinity of the film feeding mechanism and having a cutting blade that cuts the film pulled out by the film drawing mechanism at a predetermined position.