JPH0436672B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has a method of removing the outer surface of the fruit by grasping the bag placed over the outer periphery of the fruit with a clamp disposed on the upper side of a conveyor for conveying the fruit with the bag and pulling it out of the fruit. This invention relates to an improvement in a fruit removing bag that removes the bag from the fruit.

In the above-mentioned fruit unbagging device, the clamp disposed on the top side of the conveyor is able to remove the bag from the outside of the bagged fruit placed on the top of the conveyor and transported.
When trying to grab the paper bag that covers the outside of the fruit and pull it up, if the paper bag is wet or damp and is in close contact with the outside of the fruit, it will be difficult to grab the paper bag. There is a problem with closing.

To solve this problem, a blower device is installed at the bottom of the conveyor that blows pressurized air against the bag that covers the fruit being transported by the conveyor. It is effective to keep the paper bag lifted from the surrounding surface of the fruit, but this means that when the paper bag that is in close contact with the surface of the fruit is blown up by the pressure wind, it will partially lift up from the surrounding surface of the fruit. Due to close contact, the paper bag may float up at an angle and fall to one side around the fruit, and when this happens, especially when the direction of the paper bag falling is in front of or behind the fruit, There is a problem in that the paper bag that has floated up from the outer surface escapes from the closing surface of the holding body of the clamp that is closed from the left and right, making it impossible to remove the bag with the clamp.

The purpose of the present invention is to solve these problems, and to use a clamp that grips the paper bag with a pair of clamping bodies that are closed together from the left and right sides, to hold the paper bag over the fruit.
To ensure that the paper bag can be grasped from the outer surface of the fruit even when the paper bag is wet and in close contact with the surface of the fruit.

In order to achieve this object, the fruit unbagging device according to the present invention includes a clamp that grips the paper bag covering the fruit with a pair of left and right gripping bodies that open and close, on the top side of the conveyor that conveys the fruit with the bag. The clamp is disposed so as to be supported by a rotary support that rotates in the conveyance direction of the conveyor while being spaced upward from the upper surface of the conveyor, and at least the lower side of the holding body of the clamp that faces the upper surface of the fruit is It is formed of a soft elastic material such as rubber or polyurethane, and is formed in a downward recess that fits into the upper half of the fruit and spans the front and back of the fruit when viewed from the side. , a blowing device for blowing pressure air against the paper bag on the outer surface of the fruit being conveyed by the conveyor is arranged and installed in front of the position where the clamping bodies of the clamp are closed together in the conveying direction; This is a feature.

Next, an embodiment of the present invention will be described in detail with reference to the drawings, in which an embodiment of the present invention is combined with a fruit stem cutting device for cutting fruit stems to form a fruit stem cutting and bag removing device.

FIGS. 1 and 2 show an overall outline of a fruit stalk cutting and bag removal apparatus A in which the present invention can be carried out.
In the same figure, a is a conveyor mounted on the machine frame 1, which is mounted on the upper and lower parts of the front and rear ends of the machine frame 1 (both left and right ends in Fig. 1) in a pair of parallel shafts on the left and right. Sprocket 10..., each chain 1
1... are stretched endlessly, and a large number of conveyor plates 12... are connected across the chain to a pair of opposing chains 11, 11 (see Fig. 2). In this case, two perforated fruit receiving seats 13 are formed on the left and right sides for exposing the fruit stems 20 of the fruits 2 to be placed and the surrounding fruit stems on the lower surface side of the conveying plate 12. be. The conveyor a is driven by a motor M mounted on the machine frame 1, and rotates in the direction of arrow A in FIG.

The fruits 2 are fed to each conveyor plate 12 of the conveyor a by hand by an operator at the rear end side (the right end side in FIG. 1) of the machine frame 1, which is the starting end of the conveyor stroke of the conveyor a. This is carried out by individually placing the fruits 2 covered with paper bags 3 in such a position that their fruit stems 20 are located at the center of a fruit receiving seat 13 in the form of a hole provided on the conveying plate 12.

b is a paper bag 3 that covers the fruit 2 placed on the conveyance plate 12 and has its mouth portion 30 tied;
This is a paper bag cutting device disposed on the lower surface side of the conveying plate 12 to cut the mouth part 30 of the paper bag 3 as a pretreatment for peeling it from the fruit 2. A pair of correcting belts 40, 40 are arranged opposite to each other on the left and right to correct the posture of the fruit 2 by holding the fruit 2 from the left and right, and the conveying plate 12 grips the mouth part 30 of the paper bag 3 corrected by the correcting belts 40, 40. A paper bag gripping chuck 41 that pulls the paper bag downward while being conveyed in synchronization with the conveying direction of the paper bag 3 acts on the mouth part 30 of the paper bag 3 that is moved by the chuck 41, and the fruit stem 2
A paper bag cutting knife 42 that cuts only the mouth part 30 of the paper bag 3, leaving the paper bag 3, holds the fruit stem 20 exposed by cutting off the mouth part 30 of the paper bag 3, and transfers it to the conveyance plate 12 while correcting it to a predetermined posture. A pair of conveyor belts 43, 43 on the left and right convey in synchronization, and while the fruit stalks 20 are conveyed by the conveyor belts 43, 43,
It consists of a stem cutting blade 44 that cuts off the protruding end of the stem.

c is the above-mentioned paper bag cutting device b, which cuts the mouth part 3 of the paper bag 3.
This is a fruit stalk cutting device that cuts the fruit stalk 20 of the fruit 2 that has been subjected to the cutting process of 0 to short lengths. A nipper-shaped stalk cutting blade 50 provided to act on the stalk 20 of the fruit 2 exposed on the lower surface side through the cutter;
A moving device 51 that supports the stalk cutting blade 50 and moves it in synchronization with the moving direction of the conveyance plate 12; A rising guide 52 that pushes up the stem cutting blade 50 toward the center of the fruit receiving seat 13 of the conveying plate 12
The stem cutting blade 50 is provided with an opening/closing guide 53 for performing a cutting operation.

d is a paper bag 3 whose opening part 30 has been cut and opened.
This is an air blowing device that blows compressed air so as to separate the paper bag 3 from the outer surface of the fruit 2 before removing it from the outer periphery of the fruit 2.
A valve mechanism 62 is provided above the blower d and opens when the fruit receiving seat 13 of the conveying plate 12 supporting the fruit 2 is positioned.

Reference numeral ``e'' denotes a clamp for holding the paper bag 3, which is disposed on the upper surface side of the conveyor a, at a position in front of the blower d that blows up the pressure air in the conveying direction. It is supported by a rotating support f which is provided so as to rotate along the conveyance direction of the conveyor a while being spaced upward from the upper surface.
The rotating support f has three rotating shafts 70, 71, and 72 on the top side of the conveyor a, and the two rotating shafts 70, 71 are arranged in the conveying direction of the conveyor a, as shown in FIG. One rotary shaft 72 is arranged vertically on the front side and is positioned slightly above the lower rotary shaft 71 of the two rotary shafts 70, 71 at the front in the conveyance direction. The frame 1 is horizontally supported, and sprockets 73 are supported on the rotating shafts 70, 71, 72, respectively.
As shown in FIG. 3, an endless chain 74 is stretched in a triangular shape in which the bottom side facing the upper surface of the conveyor a faces the conveyance direction of the conveyor a and gradually moves away upwards when viewed from the side, and It is constructed by driving one of the three rotating shafts 70, 71, and 72 so that its bottom side rotates in the conveying direction. The clamp e supported by the rotating support f is
It consists of a pair of clamping bodies 8, 8 that are closed together from the left and right with respect to the conveyance direction of the conveyor a, and each clamping body 8 has its clamping arm 80 connected to the chain 74.
The mounting brackets 75 provided on the link plates 74a are respectively attached via support shafts 81 so as to be freely rotatable left and right. ，
A spring 83 is applied in the direction in which 82 widens, and a roller 84 is pivotally supported at the base end of each clamping arm 80 extending beyond the support shaft 81, and the clamping arm is in contact with the roller 84. Guide rails 85, 85 for closing the parts 80, 80 against the bias of the spring 83 are arranged inside the chain 74 and supported on the machine frame 1 by a support member 86. By the rotation of the chain 74,
At the position where the fruit 2 on the conveyor a has descended as shown by symbol I in FIG. , 85, the gripping portions 82, 82 on the tip side are closed together and act to grip the paper bag 3.

Furthermore, in the pair of clamping bodies 8, 8 that face each other on the left and right sides of the clamp e, clamping parts 82, 82 for clamping the paper bag 3 are formed of a soft elastic material g such as rubber or polyurethane. There is, and
As shown in FIG. 3, the lower surfaces of the holding parts 82, 82, which face the upper surface of the fruit 2, have a concave surface that resembles the shape of the upper peripheral surface of the fruit 2 when viewed from the side. It is formed in a recess 90 that fits into the upper half of the fruit 2 so as to straddle the front and back, and thereby,
When the clamping bodies 8, 8 are in the closed position shown by symbol I in FIG. 3 and are fitted to the upper half of the fruit 2 in a side view, The fruit 2 is configured in such a manner that there are protrusions 91, 91 protruding in an angular shape on the front side and the rear side of the fruit 2, and the fruit 2 with the bag is conveyed by the conveyor a. The paper bag 3 blown up by the pressure air blown out by the blower d of the paper bag 3 partially attaches to the surface of the fruit 2, as shown by chain lines A and B in FIG. When the paper bag 3 falls to the side or the rear side, the paper bag 3 is grabbed by the protrusions 91, 91 protruding from the front side and the rear side of the fruit 2 being closed from the left and right sides. be.

In addition, the member indicated by the reference numeral 92 in FIGS. 3 to 6 is a member when the blower d blows up pressure air to blow up the paper bag 3 that covers the outer surface of the fruit 2. In order to prevent the fruit 2 from falling to the left and right sides, guide plates are provided on both the left and right sides of the fruit 2 being conveyed by the conveyor a. This may be omitted because the clamping bodies 8, 8 will pull up and grab the paper bag 3 which has fallen down in the left-right direction of the fruit 2 by being closed together.

In FIG. 1 again, h indicates that the fruit 2 placed on the conveyance plate 12 and conveyed is cut by the paper bag cutting device b.
A pressing conveyor is disposed on the upper surface of the conveyor a so that the fruit 2 is pressed against the upper surface of the conveyor plate 12 while the fruit 2 is under the action of the stem cutting device c. At times, a pressing drum provided on the upper surface of the conveyor a so as to press the fruit 2 onto the upper surface of the conveyor plate 12;
j is a paper bag ejector fixed to the machine frame 1 and positioned so as to face within the open space between the clamps 8, 8, at the position where the clamp e opens the clamps 8, 8 and discharges the paper bag 3. It is a guide board.

Next, to explain the function and effect, the fruit bag removal device according to the present invention configured as described above has a structure in which the paper bag 3 is grabbed from the outer surface of the bagged fruit 2 being conveyed by the conveyor a. On the upper surface side, a clamp e that closes a pair of opposing clamping bodies 8, 8 from the left and right is attached to a rubber or A downward concave portion 90 is formed using a soft elastic material g such as polyurethane and fits into the upper half of the fruit 2 when viewed from the side and spans the front and back of the fruit 2. fruit 2
Projections 9 are formed on the front and rear sides of the fruit 2 when the fruit 2 is closed to grip the paper bag 3 on the top side.
1 and 91, so that the paper bag 3 blown up by the blower d from the outer surface of the fruit 2 being conveyed by the conveyor a falls onto the front or rear side of the fruit 2. Even if the paper bag 3 becomes larger, the aforementioned protrusions 91, 91 will be able to grip the paper bag 3, and the paper bag 3 will be reliably gripped. Further, when the clamp e performs an operation of grasping the paper bag 3 by closing its pair of opposing clamping bodies 8, 8 from the left and right, the front and rear sides of the lower surfaces of the clamping bodies 8, 8 that are closed from the left and right are Even if the protrusions 91, 91 come into contact with the peripheral surface of the fruit 2, the elasticity of the soft elastic material g prevents them from escaping from the surface of the fruit 2 and causing damage.
The lower surfaces of the clamping bodies 8, 8 can be set close to the outer surface of the fruit 2, and the gripping operation of the paper bag 3 is ensured.

Therefore, according to the present invention, the paper bag can be reliably removed from the surface of the fruit with the bag by the clamp that grips the paper bag with the holding members that are closed from the left and right sides.

[Brief explanation of drawings]

FIG. 1 is an overall schematic side view of an embodiment of the device of the present invention, FIG. 2 is an overall schematic plan view of the same device, FIG. 3 is a partially cutaway vertical sectional side view of the main parts of the same device, and FIG. A longitudinal sectional front view of the main parts of the same device, FIG. 5 is a cross-sectional view taken along the line - - of FIG. 3, and FIG.
FIG. Explanation of drawing symbols, A... Stem cutting and bag removal device, a
... Conveyor, 1 ... Machine frame, 10 ... Sprocket, 11 ... Chain, 12 ... Conveyance plate, 1
3... Fruit catcher, M... Motor, 2... Fruit,
20... Fruit stem, 3... Paper bag, 30... Mouth part, b
... Paper bag cutting device, 40 ... Correction belt, 41 ...
...Chick, 42...Paper bag cutting knife, 43...
Conveyor belt, 44... Fruit stem cutting blade, c... Fruit stem cutting device, 50... Fruit stem cutting blade, 51... Moving device, 52... Rising guide, 53... Opening/closing guide,
d...Blower device, 60...Pipe, 61...Compressor, 62...Valve mechanism, e...Clamp,
f... Rotating support body, 70, 71, 72... Rotating shaft, 73... Sprocket, 74... Chain, 7
4a...Link plate, 75...Mounting metal, 8...
...Pinching body, 80...Pinching arm, 81... Support shaft,
82... Holding part, 83... Spring, 84... Roller, 85... Guide rail, 86... Support member,
g...Bullet material, 90...Concavity, 91...Protrusion,
92...Guide plate, h...Press conveyor, i...
Pressing drum, j...Paper bag discharge guide plate.

Claims (1)

[Claims] 1. On the top side of the conveyor that transports fruit with bags, clamps that grip the paper bag covering the fruit with a pair of left and right clamping bodies that open and close are rotated in the transport direction of the conveyor while moving upwardly away from the top surface of the conveyor. The clamp is disposed so as to be supported by a moving rotary support, and at least the lower side of the holding body of the clamp that faces the above-mentioned upper surface of the fruit is made of a soft elastic material such as rubber or polyurethane, and the side It is formed in a downward recess that fits into the upper half of the fruit and spans the front and back of the fruit when viewed from above, and the lower surface of the conveyor is provided with pressure air against the paper bag on the outer surface of the fruit being conveyed by the conveyor. A fruit bag removing device characterized in that an air blowing device for blowing up the fruit is arranged and installed in front of the position where the holding bodies of the clamp are closed together in the conveying direction.