JP3100686B2 - Fruit measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fruit measuring apparatus suitable for measuring the density of fruits such as watermelon.

[0002]

2. Description of the Related Art In a fruit such as a watermelon, a cavity may be formed in a flesh portion due to a weather condition, a cultivation condition, or the like, and the commercial value of the fruit is reduced by the cavity, so that the fruit quality is constant. In addition, it was necessary to sort the fruits into hollow fruits without hollows and hollow fruits with hollows.

[0003] Conventionally, the selection of hollow fruits of watermelon is performed by lightly tapping the surface of the watermelon and hearing the sound generated when the watermelon is hit by the ear, so that a person can sort the watermelon into hollow fruits and hollow fruits. Was.

[0004]

However, in the conventional selection of hollow fruits by watermelon people, it is difficult to accurately sort watermelons into non-hollow fruits and hollow fruits. It took a lot of work.

An object of the present invention is to address the above-mentioned problems, and to move the transfer means along the length of the support frame so that the transfer body moves together with the transfer means and, at the same time, the pedestal moves the object to be measured. The object to be measured is moved together with the transfer body while supporting the object, and the object to be measured is transferred along with the receiving table along the longitudinal direction of the support frame by the transfer means, and the receiving table is transferred to the transfer body during the transfer of the object to be measured by the transfer means. In the transport process, the weight of the object to be measured during the transport process is measured by a weighing machine, and the actuator raises and lowers the support with respect to the slide member, and moves the sensor up and down with the raising and lowering of the support by the actuator. The first moving means moves the slide member at the same speed along the longitudinal direction of the guide member in synchronization with the transport means, and moves the actuator together with the slide member along the longitudinal direction of the guide member. The first moving means moves in the same direction as the conveying means and the sensor is kept in close contact with the surface of the measured object during the conveying process by the conveying means, from the measurement start position to the measurement end position of the capacitance of the measured object. And the capacitance between the sensor and the cover is measured by a capacitance meter, and the second moving means moves the slide member along the longitudinal direction of the guide member at a higher speed than the first moving means. The actuator moves in the opposite direction, moves the actuator together with the slide member along the longitudinal direction of the guide member in the direction opposite to the transporting means, and keeps the second sensor while keeping the sensor separated from the surface of the object to be measured.
The moving means moves from the measurement end position to the measurement start position of the capacitance of the object to be measured, so that the object to be measured during the transport process does not collide with the sensor, and the arithmetic unit measures the capacitance measured by the capacitance meter. Provided is a fruit measuring device capable of calculating the density of an object to be measured by calculating the volume of the object to be measured from a capacity and selecting a cavity of the object to be measured based on the density of the object to be measured calculated by an arithmetic unit. It is in.

[0006]

According to the fruit measuring device of the present invention, a transport means for transporting an object to be measured is provided on a support frame, and a plurality of transfer bodies for transporting the object to be transported are transported to the transport means. Arranged respectively, a receiving table for supporting the object to be measured is provided on the transfer body so as to be vertically movable, and a weight measuring device for measuring the weight of the object to be measured during the transport process is provided in the middle of the support frame. A gantry is provided inside the support frame, a guide member is provided on the gantry along a longitudinal direction of the transporting means, and a slide member is movably provided on the guide member, and is provided above the slide member. Providing a support, providing an actuator for raising and lowering the support above the slide member, providing a conductive sensor facing the pedestal above the support, and providing the sensor above the support frame. Conducting upward A first moving means for moving the slide member at the same speed as the conveying means on one side of the guide member, and a first moving means for moving the slide member on the other side of the guide member. A second moving means that moves in the opposite direction at a faster speed is provided, and the sensor and the cover body are connected to a capacitance meter for measuring capacitance, and the weighing machine and the capacitance meter are connected to each other. It has a configuration characterized in that it is connected to a calculation unit for calculating the density of the device under test.

[0007]

By moving the transfer means provided on the support frame along the longitudinal direction of the support frame, the plurality of transfer bodies provided on the transfer means are moved together with the transfer means, and at the same time, the transfer bodies are moved vertically. The pedestal provided freely is moved together with the transfer body, and the object to be measured is transported together with the pedestal along the longitudinal direction of the support frame by the transport means. After the weight measuring device provided in the middle of the support frame measures the weight of the object to be measured during the transport process, the object to be measured is provided on the upper portion of the support frame. Through the interior of the.

Further, when the support provided above the slide member is moved up and down with respect to the slide member by the actuator, a conductive sensor provided above the support and facing the pedestal is used to raise and lower the support by the actuator. At the same time, it moves in the vertical direction, and the first moving means provided on one side of the guide member at the top of the gantry moves the slide member at the same speed in synchronization with the transport means along the longitudinal direction of the guide member, The actuator moves with the slide member in the same direction as the conveying means along the longitudinal direction of the guide member, and the sensor is measured by the first moving means while the sensor is in close contact with the surface of the object to be measured during the conveying process by the conveying means. The capacitance meter moves from the measurement start position to the measurement end position of the capacitance of the object, and the capacitance meter that connects the sensor and the cover body respectively moves between the sensor and the cover body. Capacity was measured to calculate the density of the weight measuring machine and capacitance meter volume determined DUT of the DUT from the measured capacitance of the calculation unit capacitance meter in communication respectively.

Further, the second moving means provided on the other side of the guide member moves the slide member in the opposite direction along the longitudinal direction of the guide member at a speed higher than that of the first moving means, and simultaneously slides the actuator. The second member is moved along the longitudinal direction of the guide member together with the member in the direction opposite to the conveying means, and the second sensor is kept in a state in which the sensor is separated from the surface of the object to be measured below.
Is moved from the measurement end position of the capacitance of the object to be measured to the measurement start position.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a support frame. As shown in FIG. 2, the support frame 1 is provided with a chain conveyor 3 as a transport means for transporting a watermelon 2 to be measured. In the chain conveyor 3, as shown in FIG.
Frames 4 are respectively provided as a plurality of transfer bodies for transferring the watermelon 2, and a carrier plate 5 is provided on the frame 4 as a support for supporting the watermelon 2 so as to be vertically movable, and in the middle of the support frame 1. A weight measuring device 6 for measuring the weight of the watermelon 2 during the transport process is provided.

As shown in FIG. 1, inside the support frame 1,
A gantry 7 is provided, and a guide member 8 is provided on the upper portion of the gantry 7 along the longitudinal direction of the chain conveyor 3 as shown in FIG.
As shown in the figure, the slide member 9 is provided movably,
A base plate 10 serving as a support is provided above the slide member 9, and an air cylinder 1 as an actuator for moving the base plate 10 up and down is provided above the slide member 9.
1, a conductive sensor 12 is provided above the base plate 10 so as to face the carrier plate 5, and the base plate 10 has a conductive coil spring as urging means for urging the sensor 12 upward. 13
Is provided on the upper part of the support frame 1 as shown in FIG.
Covering body 14 having conductivity, facing above sensor 12
Is provided.

As shown in FIG. 7, on one side of the guide member 8, a synchronous feed chain 15 is provided as first moving means for moving the slide member 9 at the same speed while synchronizing with the chain conveyor 3. On the other side of the guide member 8, a fast-return chain 16 is provided as second moving means for moving the slide member 9 in the opposite direction at a higher speed than the synchronous feed chain 15.

As shown in FIG. 8, the sensor 12 and the cover 14 are connected to a capacitance meter 17 for measuring the capacitance, respectively.
Are connected to a calculation unit 18 for calculating the density of the watermelon 2.

As shown in FIG. 1, a drive shaft 19 is rotatably mounted horizontally near the one end of the support frame 1, and a driven shaft 20 is freely rotatable near the other end of the support frame 1. The drive sprockets 21 and 21 are mounted horizontally near both ends of the drive shaft 19.
Are respectively fixed, and driven sprockets 22 and 22 are respectively fixed near both ends of the driven shaft 20, and the driving sprockets 21 and 21 and the driven sprockets 22 and 22 are fixed.
A pair of roller chains 23, 23 of the chain conveyor 3 are respectively stretched between them, and the drive shaft 19 is connected to a motor M via a rotation transmission mechanism 24.

Roller chain 23 of chain conveyor 3
3 and 4, the frame 4 is fixed between the roller 4 and the roller chain 23. As shown in FIG. 9 and FIG.
5 and 25, respectively, and a front plate 26 is provided between one end of the side plate 25 and one end of the side plate 25, as shown in FIG. A rear plate 27 parallel to the front plate 26 is provided between the side plates 2.
5 are provided near both ends, and around the support hole 28 of the side plate 25, a plurality of long holes 29 are provided in the vertical direction, respectively, and both ends of the front plate 26 and the rear plate 27 are provided. Support holes 30, 30 are provided nearer to each other, and a plurality of long holes 31 are provided around the support holes 30 of the front plate 26 and the rear plate 27 in the vertical direction.

As shown in FIGS. 9 and 10, a carrier plate 5 is vertically movably disposed inside the frame 4, and a through hole is formed in the center of the carrier plate 5 as shown in FIG. In the upper part of the carrier plate 5, a plurality of receiving pieces 33 are arranged radially around the through hole 32, and the receiving piece 33 is formed with a tapered surface 34 inclined toward the through hole 32. At the lower part near both sides of the carrier plate 5, there are provided hanging pieces 35, 35 respectively hanging downward, and at the lower part between the hanging pieces 35 of the carrier plate 5, the chain conveyor 3 is provided. Engagement pieces 36, 36 are provided, each of which hang downward along the longitudinal direction, and support pieces 37, 3, which rise upward, are provided on the upper portion near the front end and the rear end of the carrier plate 5. There has been provided, respectively.

The receiving piece 33 is made of a synthetic resin material such as plastic.

As shown in FIG. 11, bolts 38, 38 are fixed to both ends of the hanging piece 35 of the carrier plate 5, and a support shaft 39 is formed on the bolt 38.
Bolts 40 and 40 are fixed to both ends of the support piece 37 of the carrier plate 5, respectively. A support shaft 41 is formed on the bolt 40, and a support shaft 39 of the bolt 38 fixed to the hanging piece 35 is attached to the frame 4. The support shaft portion 41 of the bolt 40 fixed to the support piece 37 is inserted into the support hole 28 of the side plate 25 and the support hole 30 of the front plate 26 and the rear plate 27 of the frame 4.
, The hanging piece 35 of the carrier plate 5 is supported by the supporting hole 28 of the side plate 25 of the frame 4 via a bolt 38, and the supporting piece 37 of the carrier plate 5 is connected to the front plate 26 and Support hole 30 of rear plate 27
The carrier plate 5 is vertically moved along the long holes 29 and the long holes 31 with respect to the frame 4.

On the upper part of the weight measuring device 6 of the support frame 1, FIG.
As shown in FIG. 4, a ground plate 42 is provided, and on the top of the ground plate 42, as shown in FIG.
3 is provided, and the chain conveyor 3 is provided in the housing 43.
A belt conveyor 44 is disposed along a longitudinal direction of the housing 43, and side walls 4 bent upward at both side edges of the housing 43.
5 and 45 are respectively formed, and the side wall 4 of the housing 43 is formed.
A drive pulley 46 is rotatably suspended between the rear end of the housing 5 and the rear end of the side wall 45, and is driven between the front end of the side wall 45 of the housing 43 and the front end of the side wall 45. A pulley 47 is rotatably mounted horizontally, a belt 48 of a belt conveyor 44 is stretched between a driving pulley 46 and a driven pulley 47, and a motor (not shown) is mounted on the driving pulley 46. The belt conveyor 44 is connected and is moved at the same speed or at high speed / low speed (high speed in the embodiment) in synchronization with the chain conveyor 3.

On the upper part of the support frame 1, as shown in FIG.
A cover body 14 serving as a ground electrode is disposed,
4 on both sides of the upper wall 49, the side wall 5 bent downward.
0, 50 are respectively formed, and the side wall 50 of the cover body 14 is formed.
The watermelon 2 passes between the side wall 50.

As shown in FIG. 5, a support table 51 is erected on the upper part of the gantry 7 along the longitudinal direction of the chain conveyor 3. As shown in FIGS. A guide member 8 is disposed along the longitudinal direction, and a slide member 9 is movably disposed above the guide member 8, and the air cylinder 1 is disposed above the slide member 9.
One cylinder tube 52 is erected, and the slide member 9
An engaging plate 53 is fixed to the upper portion near the rear edge of the engaging plate 5.
3, abutment pieces 54 and 55 are formed on both sides of the support table 51 and bent downward.

5 and 6 are provided above the slide member 9.
As shown in the figure, a base plate 10 is arranged, an amplifier 56 is arranged on the upper part of the base plate 10, a support 57 is provided on a rear part of the amplifier 56, and a convex protruding upward at the center of the upper end of the support 57. A portion 58 is formed, and the front end of a piston rod 59 of the air cylinder 11 is connected to the lower surface of the center of the base plate 10, and air supply means (not shown) is connected to the air cylinder 11.

The timing of starting the raising and lowering of the base plate 10 by the air cylinder 11 is performed by a charging switch (not shown).

Above the column 57, as shown in FIG.
The sensor 12 serving as a main electrode is arranged, and
As shown in FIG. 6, a coil spring 13 is disposed between the coil spring 13 and the sensor 12, and the lower end of the coil spring 13 is engaged with the projection 58 of the support column 57, and the upper end of the coil spring 13 is
2, the sensor 12 is connected to the amplifier 56 via the coil spring 13, and the sensor 12 is supported by the coil spring 13 on the support 57.

A through hole (not shown) is provided at the center of the sensor 12.
The through hole of the sensor 12 is connected to a vacuum pump (not shown) via an air tube (not shown), and the sensor 12 is brought into close contact with the surface of the watermelon 2 by vacuum.
Is made of conductive rubber.

The timing for turning on and off the vacuum by the vacuum pump of the sensor 12 is performed by a charge switch (not shown).

Wires (not shown) from amplifier 56 and air tubes from sensor 12 are communicated through cables 60 to a control panel (not shown).

As shown in FIGS. 6 and 7, a synchronization drive shaft 61 is rotatably mounted on an upper portion near the center in the longitudinal direction of the gantry 7, and a sprocket 62 is attached to one end of the synchronization drive shaft 61. Is fixed, a drive sprocket 63 is fixed to one side of the support base 51 near the other end of the synchronization drive shaft 61, and a drive gear 64 is fixed to the other end of the synchronization drive shaft 61. 62 is connected to a motor (not shown) via a rotation transmission mechanism 65.

As shown in FIGS. 5 and 7, a synchronous driven shaft 66 is rotatably mounted on the upper portion near the rear end of the gantry 7, and is supported near the end of the synchronous driven shaft 66. A driven sprocket 67 is fixed to one side of the base 51, and a synchronous feed chain 15 is stretched between the drive sprocket 63 and the driven sprocket 67, and a bracket 68 is provided on the synchronous feed chain 15. With the bracket 68
, An engaging roller 69 is rotatably provided, and the bracket 68 is moved together with the chain 15 for synchronizing feeding in the same direction while synchronizing with the chain conveyor 3.
Is movable toward and away from the contact piece 54 of the engagement plate 53 of the slide member 9.

As shown in FIGS. 5 and 7, a fast-return drive shaft 70 is rotatably mounted on the upper portion of the gantry 7 between the synchronization drive shaft 61 and the synchronization driven shaft 66, as shown in FIGS. A driven gear 71 is fixed to one end of the quick-return drive shaft 70, and a drive sprocket 72 is fixed to the other side of the support base 51 near the other end of the quick-return drive shaft 70. Between the drive gear 64 fixed to the other end of the drive shaft 61 and the driven gear 71 fixed to one end of the quick-return drive shaft 70, idle gears 73 and 74 meshing with each other are rotatably provided. Meshes with the drive gear 64, and the idle gear 74 meshes with the driven gear 71.

As shown in FIGS. 5 and 7, a fast-return driven shaft 75 is rotatably mounted on the upper portion near the front end of the gantry 7, and is located near the end of the fast-return driven shaft 75 as shown in FIGS. A driven sprocket 76 is fixed on the other side of the support base 51, and a fast-return chain 16 is stretched between the driving sprocket 72 and the driven sprocket 76, and a bracket 77 is provided on the fast-return chain 16. And the bracket 77
The bracket 77 is moved in the opposite direction at a higher speed than the synchronous feed chain 15 together with the rapid return chain 16, and the engaging roller 78 is The contact piece 55 can freely contact and separate from the contact piece 55.

FIG. 8 is a schematic block diagram of the present invention.
The sensor 12 is connected to the amplifier 56 via the coil spring 13, and the cover 14 and the amplifier 56 are connected to the capacitance meter 17 for measuring the capacitance between the sensor 12 and the cover 14, respectively. The electric capacity meter 17 is connected to a calculation unit 18, and the calculation unit 18 is connected to a display 80 that displays the weight, volume, and density of the watermelon 2.

A high-frequency voltage is applied between the sensor 12 and the cover 14, and when the watermelon 2 passes through the inside of the cover 14, the capacitance between the sensor 12 and the cover 14 becomes electric capacitance. It is measured by a total 17.

Since the capacitance between the sensor 12 and the cover 14 increases in proportion to the volume of the watermelon 2, the arithmetic unit 18 provides the arithmetic unit 18 with the capacitance between the sensor 12 and the cover 14. The relationship of the volume of the watermelon 2 is set.

In FIG. 5, the slide member 9 is moved from the measurement start position where the synchronous feed chain 15 starts measuring the capacitance between the sensor 12 and the cover body 14 along the longitudinal direction of the guide member 8. The sensor 12 is moved in the direction of arrow A in FIG.
When the air cylinder reaches the capacitance measurement start position, the air cylinder 1
The first piston rod 59 is moved upward, the base plate 10 is raised by the air cylinder 11 with respect to the re-sliding member 9, and the amplifier 56 is moved to the base plate 10.
After the sensor 12 is brought into close contact with the surface of the watermelon 2 by vacuum, the synchronous feed chain 15 moves toward the measurement end position at the same speed while synchronizing the sensor 12 with the chain conveyor 3. It has become.

The slide member 9 is moved by the quick return chain 16 along the longitudinal direction of the guide member 8 to the sensor 12.
The sensor 12 is moved in the direction of the arrow B in FIG. 5 from the measurement end position where the measurement of the capacitance between the cover member 14 and the measurement end position to start the measurement of the capacitance, and the sensor 12 reaches the measurement end position. Then, the piston rod 5 of the air cylinder 11
9 is moved downward, the base plate 10 is lowered by the air cylinder 11 toward the slide member 9,
After the amplifier 56 is moved downward together with the base plate 10 and the sensor 12 is separated from the surface of the watermelon 2, the fast-return chain 16 starts the measurement at twice the speed of the sensor 12 than the synchronous feed chain 15. It moves to the position.

Next, the operation of this embodiment will be described.

First, after the watermelon 2 is put on the receiving piece 33 of the carrier plate 5 and then the motor M is driven, the drive shaft 19 is driven counterclockwise in FIG. At the same time, the driving sprocket 21 rotates counterclockwise in FIG. 1 together with the driving shaft 19, and the roller chain 23 of the chain conveyor 3 rotates in the direction of the arrow a in FIG. The driven sprocket 22 rotates counterclockwise in FIG. 1 with the movement of the roller chain 23, and the driven shaft 20 moves together with the driven sprocket 22 in the counterclockwise direction in FIG. Rotate.

Roller chain 23 of the chain conveyor 3
With the movement of the drive sprocket 21, the frame 4 moves in the direction of arrow a in FIG. 1 together with the roller chain 23, and at the same time, the carrier plate 5 moves in the direction of arrow a in FIG. And
The watermelons 2 are sequentially conveyed one by one along with the carrier plate 5 along the longitudinal direction of the support frame 1 by the chain conveyor 3.

When the driving pulley 46 is rotated counterclockwise in FIG. 2 with respect to the housing 43 by driving the motor, the belt 48 of the belt conveyor 43 moves at the same speed in synchronization with the chain conveyor 3. The driven pulley 47 rotates counterclockwise in FIG. 2 with respect to the housing 43 as the belt 48 moves.

When the watermelon 2 is conveyed by the chain conveyor 3, the engagement pieces 36, 36 of the carrier plate 5 ride on the belt 48 of the belt conveyor 44, and the carrier plate 5 is moved relative to the frame 4 by the long holes 29 of the side plate 25 and It moves upward along the long hole 31 of the front plate 26 and the rear plate 27,
After the weight measuring device 6 sequentially measures the weight of the watermelons 2 in the transport process by the chain conveyor 3 one by one, the watermelons 2 pass through the inside of the cover body 14 while being transported to the chain conveyor 3.

Further, when the sprocket 62 is rotated via the rotation transmission mechanism 65 by the driving of the motor, the synchronization drive shaft 61 is moved together with the sprocket 62 to the gantry 7 as shown in FIG.
5, the driving sprocket 63 rotates counterclockwise in FIG. 5 together with the synchronizing drive shaft 61, and the synchronizing feed chain 15
5 moves at the same speed in the direction of the arrow b in FIG. 5 while synchronizing with the chain conveyor 3, and the driven sprocket 67 rotates counterclockwise in FIG. Then, the synchronous driven shaft 66 rotates counterclockwise in FIG. 5 with the driven sprocket 67 with respect to the gantry 7, and the engaging roller 69 moves together with the synchronous feed chain 15 via the bracket 68 in the direction of arrow b in FIG. Move in the direction.

By the rotation of the synchronization drive shaft 61 driven by the motor, the drive gear 64 is moved together with the synchronization drive shaft 61 in FIG.
At the same time, the idle gear 73 rotates clockwise in FIG. 5 while meshing with the drive gear 64,
The idle gear 74 rotates counterclockwise in FIG. 5 while meshing with the idle gear 73, and the driven gear 71 rotates clockwise in FIG. 5 together with the driven gear 71 in the clockwise direction in FIG.

The rotation of the quick-return drive shaft 70 by the driven gear 71 causes the drive sprocket 72 to rotate together with the quick-return drive shaft 70 in the clockwise direction in FIG. 5, the sprocket 76 moves in the direction of arrow c in FIG. 5 at twice the speed that is faster than the chain 15 for synchronous feed, and the driven sprocket 76 moves clockwise in FIG. 5, the fast-return driven shaft 75 rotates clockwise with respect to the gantry 7 together with the driven sprocket 76 in FIG. 5, and the engaging roller 78 moves together with the fast-return chain 16 via the bracket 77 in FIG. Move in the direction of arrow c.

Chain 15 for synchronous feeding of engagement roller 69
, The engagement roller 69 comes into contact with the contact piece 54 of the engagement plate 53 of the slide member 9 at the capacitance measurement start position between the sensor 12 and the cover body 14, and at the same time, the piston of the air cylinder 11 The rod 59 moves upward at the capacitance measurement start position, the base plate 10 rises with respect to the slide member 9 by the air cylinder 11, the amplifier 56 moves upward together with the base plate 10, and the sensor 12 moves. When the base plate 10 rises, the base plate 10 is brought into close contact with the surface of the watermelon 2 through the through hole 32 of the carrier plate 5 by vacuum.

The engaging roller 69 of the synchronous feed chain 15
The slide member 9 is moved in the longitudinal direction of the guide member 8 by the engagement roller 69 of the synchronous feeding chain 15 by the contact of the engagement plate 53 with the contact piece 54 of the slide member 9, and at the same time, the air cylinder 11 is moved. Slide member 9
5 along the longitudinal direction of the guide member 8, and while the sensor 12 is in close contact with the surface of the watermelon 2 by vacuum in synchronization with the chain conveyor 3 by the synchronous feed chain 15 at the same speed in the direction of arrow A in FIG. After that, the engagement roller 69 of the synchronous feed chain 15 is separated from the contact piece 54 of the engagement plate 53 of the slide member 9 at the position where the measurement of the capacitance between the sensor 12 and the cover body 14 is completed.

When the sensor 12 is moved from the measurement start position to the measurement end position of the capacitance which is in close contact with the surface of the watermelon 2 by vacuum, the watermelon 2 is moved by the chain conveyor 3 to the cover 14.
, A high-frequency voltage is applied between the sensor 12 and the cover 14, and the capacitance between the sensor 12 and the cover 14 is measured by the capacitance meter 17.

When the engagement roller 78 is moved by the quick return chain 16, the engagement roller 78 comes into contact with the engagement plate 53 of the slide member 9 at the position where the measurement of the capacitance between the sensor 12 and the cover 14 is completed. Simultaneously with contacting the piece 55, the piston rod 59 of the air cylinder 11 moves downward at the capacitance measurement end position, and the base plate 10 is lowered by the air cylinder 11 toward the slide member 9,
The amplifier 56 moves downward together with the base plate 10, and the sensor 12 moves below the surface of the watermelon 2 through the through hole 32 of the carrier plate 5 due to the lowering of the base plate 10.

When the engagement roller 78 of the fast-return chain 16 abuts against the contact piece 55 of the engagement plate 53 of the slide member 9, the slide member 9 is moved by the engagement roller 78 of the fast-reverse chain 16 to the guide member 8. At the same time as moving along the longitudinal direction, the air cylinder 11 moves along with the sliding member 9 along the longitudinal direction of the guide member 8 and the sensor 12
5 is moved in the direction of arrow B in FIG. 5 at a speed twice as fast as that of the synchronous feed chain 15 by the quick return chain 16 while being separated from the surface of the watermelon 2, and then the engaging roller of the quick return chain 16 is moved. Reference numeral 78 departs from the contact piece 55 of the engagement plate 53 of the slide member 9 at the capacitance measurement start position.

After the weight measuring device 6 measures the weight of the watermelon 2 during the transportation process by the chain conveyor 3, the weight of the watermelon 2 is input to the arithmetic unit 18 via the converter 79.

A high-frequency voltage is applied between the sensor 12 and the cover 14, the watermelon 2 passes through the inside of the cover 14 by the chain conveyor 3, and the electric capacity meter 17 reads the sensor 12 when the watermelon 2 passes. The capacitance between the sensor 12 and the cover 14 is measured, and the capacitance between the sensor 12 and the cover 14 is input to the calculation unit 18. The volume of the watermelon 2 is determined from the capacitance.

Assuming that the density of the watermelon 2 is ρ, the weight of the watermelon 2 is W, and the volume of the watermelon 2 is V, the density ρ of the watermelon 2 is calculated from the weight W of the watermelon 2 and the volume V of the watermelon 2 by the following equation. .

Ρ = W / V The operation unit 18 calculates the watermelon 2 obtained from the weight of the watermelon 2 measured by the weighing machine 6 and the capacitance measured by the capacitance meter 17.
The density of the watermelon 2 is calculated based on the volume of the watermelon 2, the display 80 displays the weight, volume and density of the watermelon 2 respectively, the watermelon 2 is sent to the next process from the chain conveyor 3, and the watermelon 2 utilizes the density. The fruits are separated into hollow fruits and solid fruits.

[0055]

As described above, according to the fruit measuring device of the present invention, by moving the transfer means along the longitudinal direction of the support frame, the transfer body moves together with the transfer means, and at the same time, the receiving table is moved. Can move along with the transfer body while supporting the object to be measured, and the object to be measured can be transported along with the receiving table along the longitudinal direction of the support frame by the transporting means. Since the object moves upward with respect to the transfer body during the conveyance, the weight of the object to be measured during the conveyance step can be measured by the weighing machine.

Further, since the actuator moves the support up and down with respect to the slide member, the sensor can be moved up and down as the support moves up and down by the actuator.
Since the first moving means moves the slide member at the same speed along the longitudinal direction of the guide member and in synchronization with the transport means, the actuator moves the actuator together with the slide member in the same direction as the transport means along the longitudinal direction of the guide member. Since the sensor is moved from the measurement start position of the capacitance of the object to be measured to the measurement end position by the first moving unit in a state in which the sensor is in close contact with the surface of the object to be measured during the transportation process by the transportation unit. The capacitance between the sensor and the cover can be measured by a capacitance meter, and the second moving means moves the slide member along the longitudinal direction of the guide member at a higher speed than the first moving means. Since the actuator moves in the opposite direction, the actuator can be moved along with the slide member in the direction opposite to the conveying means along the longitudinal direction of the guide member, and the sensor moves from the surface of the object to be measured. In this state, the object to be measured is moved from the measurement end position to the measurement start position of the capacitance of the object by the second moving means, so that the object to be measured during the transport process does not collide with the sensor, and Since the density of the DUT is calculated by calculating the volume of the DUT from the capacitance measured by the capacitance meter, the selection of the cavity of the DUT can be performed based on the density of the DUT calculated by the calculation unit. it can.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a fruit measuring device according to an embodiment of the present invention.

FIG. 2 is an enlarged front view of a main part of the watermelon transport device of FIG. 1;

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a sectional side view of a main part of FIG. 2;

FIG. 5 is a cutaway front view of a main part of the sensor moving device of FIG. 1;

FIG. 6 is a sectional side view of a main part of FIG. 5;

FIG. 7 is a plan view of FIG. 5;

FIG. 8 is a schematic block diagram of a fruit measuring device.

FIG. 9 is a front view of a main part of FIG. 2;

FIG. 10 is a side view of FIG. 9;

FIG. 11 is a plan view of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support frame 2 Watermelon 3 Chain conveyor 4 Frame 5 Carrier plate 6 Weight measurement machine 7 Stand 8 Guide member 9 Slide member 10 Base plate 11 Air cylinder 12 Sensor 13 Coil spring 14 Cover body 15 Synchronous feed chain 16 Fast return chain 17 Electric capacity 18 arithmetic unit 19 drive shaft 20 driven shaft 21 drive sprocket 22 driven sprocket 23 roller chain 24 rotation transmission mechanism 25 side plate 26 front plate 27 rear plate 28 support hole 29 long hole 30 support hole 31 long hole 32 through hole 33 receiving Piece 34 tapered surface 35 hanging piece 36 engaging piece 37 support piece 38 bolt 39 support shaft section 40 bolt 41 support shaft section 42 ground plate 43 housing 44 belt conveyor 45 side wall 46 driving pulley 47 driven pulley 48 belt 49 upper Wall 50 Side wall 51 Support base 52 Cylinder tube 53 Engagement plate 54 Contact piece 55 Contact piece 56 Amplifier 57 Support post 58 Protrusion 59 Piston rod 60 Cable 61 Synchronous drive shaft 62 Sprocket 63 Drive sprocket 64 Drive gear 65 Rotary transmission mechanism 66 Synchronous driven shaft 67 Followed sprocket 68 Bracket 69 Engagement roller 70 Fast return drive shaft 71 Followed gear 72 Drive sprocket 73 Idle gear 74 Idle gear 75 Fast return driven shaft 76 Followed sprocket 77 Bracket 78 Engagement roller 79 Converter 80 Display M Motor

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Haruo Koga 1-32 Chaya-cho, Kita-ku, Osaka City, Osaka Prefecture Inside Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A-56-118819 (JP, A) JP-A-53-149548 (JP, A) JP-A-1-227958 (JP, A) JP-A-55-109929 (JP, A) JP-A-4-27863 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01N 9/00-9/36 G01N 27/00

Claims (1)

(57) [Claims] 1. A transporting means for transporting an object to be measured is provided on a support frame, and a plurality of transfer bodies for transporting the object to be measured are respectively provided on the transporting means, and the object to be measured is mounted on the transporting body. A pedestal supporting the object is provided movably in the vertical direction,
A weight measuring device for measuring the weight of the object to be measured during the transporting step is provided in the middle of the support frame, a gantry is provided inside the support frame, and a top portion of the gantry is provided along a longitudinal direction of the transport unit. A guide member is provided, a slide member is movably provided on the guide member, a support is provided above the slide member, and an actuator for raising and lowering the support is provided above the slide member, and an actuator is provided above the support. A conductive sensor is provided facing the pedestal, a conductive cover body is provided above the sensor above the support frame, and the slide member is provided on one side of the guide member by the transfer means. A first moving means for moving at the same speed as the first moving means, and a second moving means for moving the slide member in the opposite direction at a higher speed than the first moving means on the other side of the guide member; And the cover body is connected to a capacitance meter for measuring capacitance, and the weighing machine and the capacitance meter are connected to a calculation unit for calculating the density of the object to be measured. Measuring device.