JP3500280B2 - Agricultural product holding device used for internal quality measurement device - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to peaches, pears, apples,
The present invention relates to a device for holding agricultural products on a saucer, which is preferably used when the internal quality of agricultural products such as citrus fruits and melons is detected by measuring transmitted light.

[0002]

2. Description of the Related Art As evaluation items for sorting and sorting agricultural products, grade items such as external scratches and colors of agricultural products and rank items such as size and weight have been used in the past. Is required to measure internal quality such as sugar content and maturity of all agricultural products by non-destructive inspection, and various proposals have been made.

However, there are still many problems to be solved when measuring information for internal quality in equipment for actually selecting agricultural products.

One of the problems that is particularly problematic is that the light (transmitted light) transmitted through the inside of the agricultural product, which is obtained as information indicating the internal quality in the non-destructive inspection, is transmitted light, and therefore is not illuminated. Is extremely large, and if the amount of ambient light leaking into the light receiving optical system is large,
The problem is that the minute changes in the transmitted light including the information indicating the internal quality are overwhelmingly buried in the large ambient light, and the internal quality information with high sensitivity and accuracy cannot be detected.
Therefore, in order to avoid such a problem, it is required to prevent leakage of light into the light-receiving optical system due to disturbance.

As a countermeasure against this problem, a bucket type tray or the like is provided with an annular agricultural product carrying portion made of an elastic material having a light shielding property, or a so-called free tray type saucer which is not fixed to the conveying means is provided with a light shielding property. Providing a similar agricultural product carrying section, carrying agricultural products on these,
It has been conventionally considered to detect transmitted light from a through hole provided inside the annular shape.

Further, in order to improve the adhesion between the agricultural product-carrying portion, which is formed of the annular elastic body and has the sealing property (light-shielding property), with the agricultural product, for example, Japanese Utility Model Publication No. 58-
No. 25345 and Japanese Patent Laid-Open No. 6-288903 are also proposed. These proposals provide the action of strongly pressing the agricultural products placed on the agricultural products carrier to the agricultural products carrier by elastically engaging elastic rollers that rotate above the transport track.

[0007]

By the way, the processing for sorting and sorting agricultural products has recently been required to be high-speed and highly efficient, and it is also required to speed up the work speed in detecting the transmitted light of agricultural products. According to the study by the inventors, it has been found that this is one of the new problems to be improved in connection with the above-mentioned configuration for preventing the leakage and entry of ambient light.

That is, not only in the case of low-speed work such that the transmitted light of agricultural products can be detected manually, for example, it is possible to detect the agricultural products carried by a conveyor or the like using a mechanical device. Even if it is done, in the device of the method of temporarily stopping the transportation of agricultural products at the detection position, the processing capacity of the agricultural product sorting and sorting equipment is limited to an extremely low speed by the transportation stop in this transmitted light detection step, This is because, in recent years, a processing speed of 5 or 6 or more per second is often required, and it is very unlikely that the transmitted light detection device or the like of the above system will satisfy such processing capability.

The devices proposed in Japanese Utility Model Publication No. 58-25345 and Japanese Patent Application Laid-Open No. 6-288903 described above are
Agricultural products that pass through this transmitted light detection process are strongly pressed against the annular seal part with an elastic roller to enhance the effect of preventing optical leakage light, and other than illumination light that has passed through agricultural products as ambient light. Although it is theoretically excellent in that an optical system can be configured so that light does not leak into the light receiving system, it is not necessarily appropriate as a device for actually performing processing at the above-mentioned high working speed.

The reason is explained as follows. First
In addition, since the agricultural products to be measured according to the present invention are natural products, their sizes and shapes are not uniform, and when elastic rollers are elastically engaged with such agricultural products, they are elastically deformed depending on the size. One of the problems is that the degree of deformation of the rollers is different. That is, when the above roller elastically engaged, the relationship with the produce changes from non-contact to contact to non-contact, and at this time, a force that causes shaking from the roller acts on the produce. It becomes easy to lose stability. In other words, since the degree of deformation of the elastic roller is different as described above means that the roller peripheral speed of the portion contacting the agricultural product is different, there is a difference between the speed of feeding the agricultural product by the conveyor and the rotational peripheral speed of the roller. Is difficult to avoid, and this is a cause of instability in the above-mentioned agricultural product placement state. The destabilization of the mounting state affects the adhesiveness of the light-shielding seal portion and adversely affects the penetration of light leakage. In addition, especially when the contact state changes to the non-contact state, the roll-out action of the roller causes the agricultural product to sway, and in a significant case, it may cause a fall. These problems are not so serious when the transport speed is low, but they cannot be ignored when the transport speed is high.

Another reason why the elastic roller system is not suitable is that it is difficult to synchronize the transportation speed of agricultural products with the speed of the elastic roller elastically engaged with the transportation speed. That is,
As mentioned above, the unstable state of placement of agricultural products is caused by the fact that the peripheral speeds of the rollers that contact (elastically engage) the agricultural products are not constant and do not synchronize. It is conceivable to devise so as to synchronize the. However, it is possible to synchronize by elastically engaging the agricultural product with a diameter of the elastic roller in a substantially natural state that is not deformed, but with this, the pressing of the agricultural product by the roller is only at the point (or the line in the lateral transfer direction). Since it is not given, it cannot be applied to an actual device that detects transmitted light within a certain range in the transport direction. Further, in order to do so, it is necessary to move the axial center position of the elastic roller by detecting the height of the agricultural product, and in this respect also, it is difficult to apply it to the actual device.

Although it is possible to use a conveyor belt having a fixed linear track instead of the elastic roller for elastically engaging and pressing the agricultural product, the arrangement of the pulleys for rotating the belt is considered. It is difficult to adopt this method because it is difficult.

The inventor of the present invention makes it possible to process the prior art relating to transmitted light detection for internal quality measurement as described above and the sorting and sorting process including such internal quality measurement at high speed and with high efficiency. The present invention has been made through intensive development.

That is, an object of the present invention is to provide a pressing device capable of detecting the transmitted light of agricultural products with high sensitivity and accuracy without damaging the agricultural products.

Another object of the present invention is to provide a holding device that can stably maintain the agricultural products in a mounted state without being affected by the difference in size and shape of the agricultural products.

Still another object of the present invention is to provide a pressing device capable of achieving extremely high speed and high efficiency processing while achieving the above object.

[0017]

The above object can be achieved by the invention described in each of the above-mentioned patent claims.

The invention of the agricultural product pressing device used in the internal quality measuring device according to claim 1 of the present application is directed to a conveyor for conveying a tray on which the agricultural product is placed in a line so as to pass over the transmitted light detection position of the agricultural product. A holding device for agricultural products having a large number of holding members which are separately installed above the transfer conveyor and are endlessly rotated at a synchronized speed so as to have parallel linear track portions facing the transfer conveyor. The linear track portion is arranged so as to face the transmitted light detection position of the conveyor, and at the start end of the linear track portion, the pressing member is moved downward from the retracted position to land on the agricultural product. An up-and-down moving means of the pressing member is provided for moving down to the engaging position for engaging and for moving down the pressing member at the terminal end portion of the linear track to the upper retracted position, and the up-and-down moving means includes: Spring means for absorbing and absorbing the lower power of the pressing member engaged with the agricultural product is provided , and the pressing member is
For one agricultural product along the transport direction of the transport conveyor
And at least two or more are connected at a density that can be elastically engaged.
It is characterized by

The pressing member of the pressing device having the above structure is
As a whole, it is usually installed so as to rotate endlessly along an elliptical orbit, and in the linear orbital part that moves in parallel or opposite to the conveyor, it moves at a speed synchronized with the conveyor. Need to be configured.

Further, the spring means for absorbing and absorbing the lower power of the pressing member engaged with the agricultural product in the above structure engages with the agricultural product before the pressing member reaches the limit point of moving downward when the agricultural product is not present. When it is locked, the amount of locking of this downward movement is absorbed as an accumulation of spring force,
For example, a compression spring, a tension spring, an elastic body such as a sponge, or the like can be used.

According to the present invention, the pressing member performs a combined movement of the parallel movement motion component synchronized with the transport conveyor and the vertically moving motion component in the linear trajectory portion of the movement thereof. Since each of these motion components is performed independently, for example, movement can be given in strict synchronization with the conveyor, and vertical movement that presses the produce does not give an effect such as popping out on the produce. It can be carried out. And according to this invention, the agricultural products are stably pressed by the plurality of pressing members,
It is possible to obtain a high adhesion sealing property with the agricultural product in the agricultural product supporting portion, perform transmitted light detection while reliably preventing the entry of ambient light, and perform highly sensitive and accurate internal quality measurement.

The saucer used in the above invention is
As described in claim 2, it may be a saucer connected and fixed to the transfer conveyor, or may be a free tray type saucer not connected to the transfer conveyor. Further, the saucer has a structure for detecting the transmitted light of the agricultural products placed on it, and has, for example, an annular agricultural product carrying portion made of an elastic body and a downward direction from the annular inner side of the agricultural product carrying portion. It is possible to preferably use the one configured to have a through hole for penetrating the transmitted light for leading out the transmitted light.

[0023]

[0024]

[0025]

DETAILED DESCRIPTION OF THE INVENTION

First Embodiment Hereinafter, an example of the present invention will be described by taking a sorting device that detects transmitted light of an agricultural product and measures it as internal quality information for sorting and sorting.

FIG. 1 is a front view showing an overall outline of the apparatus of the transmitted light detecting step of this example, and FIG. 2 is an enlarged front view of the transmitted light detecting apparatus 3.

In these figures, the receiving tray 6 on which the agricultural products P are placed by the work in the supply stage (not shown) is transmitted from the end portion of the upstream side conveyer conveyor 1 having the aligning function to convey the transmitted light. It is transferred to the aligning and conveying conveyor 2 in the detecting step and passed through the transmitted light detecting device 3 provided in the middle of the aligning and conveying conveyor 2. Then, the signal indicating the information about the internal quality obtained by the transmitted light detection is sent to the sorting classification determination device (not shown), and this measurement information and other appropriately measured sorting information (for example, appearance imaging information) are used together with the agricultural products. It is used for the purpose of determining the assortment classification.

Reference numeral 4 denotes a sorting conveyor which constitutes a transporting means in the sorting stage, and is continuously provided so as to be transferred from the end portion of the measuring and transporting conveyor 2, and one example of the configuration is along the transporting direction. And a plurality of assortment discharge devices are arranged for each assortment section, and the assortment conveyor 4
When the bar code reader (not shown) provided on the start end side of the tray reads the bar code of the tray 6 to reach the specific assortment discharge device corresponding to the assortment category of the agricultural products placed thereon. The sorting device is operated to discharge the agricultural product P together with the tray 6 to a branching conveyor which is branched in a direction perpendicular to the sorting conveyor 4. The sorting work and the work of packaging the agricultural product P on the tray 6 discharged to the branching conveyor for each sorting into a packaging box can be performed by using an appropriately known device.

Next, the transmitted light detecting device 3 provided in the transmitted light detecting step, which is the characteristic structure of the present embodiment having the above-mentioned structure,
1 will be described below with reference to FIG. 1 showing the outline of the state when the tray 6 passes through the inside of the transmitted light detecting device 3, and FIGS. 2 to 6 showing this in more detail.

The outline of the operation of transmitted light detection in this example will be described as follows. That is, the trays 6 whose orientations are aligned by the above-described transport conveyor 1 with an upstream orientation alignment function.
Is transferred to the aligning and conveying conveyor 2, and is introduced into the light-shielded dark room box 301 in that posture. In addition, the saucer 6 of the present example is illuminated with light source light from the side of the agricultural product in order to obtain transmitted light detection with high sensitivity, and
It has a characteristic configuration including a configuration in which a stable placement state is secured so that agricultural products do not roll over from the free tray type tray 6 (details will be described later).

The tray 6 introduced into the dark room box 301 as described above is illuminated by a plurality of illumination lamps 302 arranged on the side of the transport path as shown in FIG. In this dark room box 301, the tray 6 to be transported is
A pressing device 5 for pressing the agricultural product P above from below to make the light-shielding seal of the receiving seat 631 of the receiving tray 6 more reliable.
Is provided.

A light receiving device 303 of a light receiving optical system for detecting transmitted light is provided below the carrying surface of the aligning and carrying conveyor 2 forming the tray carrying path of the transmitted light detecting device 3 and a through hole 632 of the tray body 61. Are arranged in positions where the
The cylindrical elastic body 6 that penetrates the inside of the agricultural product P on
It is provided so that the transmitted light passing through the inner cylinder of 3 can be detected. A lower dark room box 304 similar to the upper dark room box 301 is provided so that light other than transmitted light does not enter the light receiving device 303.

In the sorting apparatus of this example which performs the above-mentioned work contents, the holding device 5 in the transmitted light detecting step is for further surely preventing the leakage of light into the through hole 632 of the receiving tray 6. Which is the most characteristic part of this example. This will be described below.

As shown in FIGS. 1 to 6, the pressing device 5 of this embodiment is arranged above the aligning and conveying conveyor 2 which will be described later. In these figures, 501 is a link chain that rotates an oval endless track, and is rotated by a pair of sprockets 502 at a speed that is synchronized with the transfer speed of the tray 6 on the alignment transfer conveyor 2. Has become. Then, from each link of the link chain 501, the support bracket 50 is placed radially outward of the endless track.
3 extends in a bifurcated shape (see FIGS. 3, 5 and 6), and its bracket tip bifurcated portions 5031, 5031
Further, a tilting member 504 is pivotally supported by a pin hinge so as to be rotatable around an axis. 505 is the support bracket 503
The pin is fixed through the space between the bracket forks 5031 and 5031. Further, the tip of the tilting member 504 is formed as a concave portion 5041, and is fitted between the bracket tip bifurcated portions 5031 and 5031, and the pin 505 penetrates the pair of side walls 50411 and 50411 of the concave portion 5041. And a pair of side walls 504 of the concave portion 5041.
11, 50411, between the pressing piece support rods 5 to be described later.
The base plate-shaped portion 5061 of No. 06 is fitted and the pressing piece support rod 506 is pivotally supported by the pin 505 so as to be rotatable about its axis.

A roller 5042 is attached to the rear end of the tilting member 504 extending to the opposite side of the pin 505 so as to be rotatable about its axis. A guide rail 507 extending along a circular track is slidably fitted to the guide rail 507. The straight track portion 5071 of the lower track facing and parallel to the transport surface including the transmitted light detection position of the tray 6 which is a part of the track of the guide rail 507 is biased inward as shown in FIG. It is provided so as to travel parallel to the plane, and as shown in FIG. 3, as shown in FIG. 3, the tip of the tilting member 504 is tilted toward the inside of the elliptical orbit as shown in FIG. In the straight track portion 5071, the posture of the tilting member 504 is controlled so that the tip end of the tilting member 504 is tilted outward in the radial direction of the elliptical track.
509 is a frame base on which the guide rail 507 and the sprocket 502 are rotatably assembled. The pressing piece support rod 506 has its tip end side bent approximately 90 ° toward the outside of the track, and at the bent tip end, the agricultural product pressing member 508 made of an elastic body is pivotally supported by a pin 5081, and the rear end is As described above, the plate-shaped portion 5061 is fitted into the tip concave portion 5041 of the tilting member, pivotally supported by the pin 505, and between the rod intermediate portion and the downward projecting plate 5043 of the tilting member 504. Concave part 504 is stretched by tension spring 5044.
It is pressed against the bottom surface 50412 of No. 1 to stabilize its posture.

According to the pressing device 5 of the present embodiment having the above-described structure, as shown in FIGS. 1 and 2, the tilting member 504 is rotated along the elliptical track, and the linear track portion 5071 of the guide rail 507 is rotated. Then, due to the inward deviation of the guide rail 507 with which the roller 5042 at the rear end of the tilting member 504 slides, the tilting member tilts so that the front end side of the pin 505 is directed outwardly of the track. As a result, the pressing member support rod 506 tilts. When the pressing member 508 engages with the agricultural product P on the tray 6 during the tilting, the tip end of the pressing member 508 is locked against tilting outward of the track against the spring force of the tension spring 5044. (See FIG. 4), the agricultural product P is pressed downward by the spring force of the tension spring 5044.

Therefore, the agricultural product P is pressed against the seal portions (6311, 6312) of the receiving seat 631 of the receiving tray 6 in addition to its own weight, and the illumination light is more reliably prevented from leaking into the through hole 632. It will be.

In the holding device 5 of this example, the holding member 5
The size of the tray 08 in the tray conveying direction is shortened, and a plurality of holding members 508 (two in the illustrated example) are attached to one agricultural product P.
Since it can be engaged with, the holding state of the agricultural product is stable.

Next, an explanation will be given of the aligning and conveying conveyor 2 which accurately positions the tray 6 in the lateral direction of the conveying path at the transmitted light detecting position in the transmitted light detecting device 201.
Is a conveyor chain of the aligning and conveying conveyor 2, and is arranged in a pair of left and right so as to be endlessly rotated by being wound around the sprocket 202, and a short link is connected by a pin hinge to form an endless type. Configured as a traditional conveyor chain. And the guide frame 2
In this example, as shown in FIGS. 7 and 8, the horizontal positioning bracket (hereinafter simply referred to as “bracket”) 22 to be described later is guided by the guide rail 205 fixed to 03.
The left and right pairs of the upward flanges 220 of 0 have a width wider than the diameter of the tray 6 on the starting end side of the aligning and conveying conveyor 2, but the transmitted light passes through an inclined orbit portion 204 that narrows the distance on the way. In the detecting device 3 portion, the diameter of the tray 6 is set to be substantially the same as the diameter of the tray 6, and the tray 6 is positioned in the horizontal direction. The inclined track portions 204 of the pair of conveyor chains 201 of this example are provided symmetrically. Also below the chain 201 (return)
The track is provided with a widened track portion (not shown) for returning the narrowed interval to the wide interval on the side of the starting end. 206 is a rotary drive mechanism for synchronously rotating the pair of left and right sprockets 202.

The above-mentioned bracket 220 with the upward flange 2202 is shown in FIGS. 7 and 9, and in this example, one bracket 220 is assembled and fixed to one of the chain links so that there is no gap in the conveying direction. It is supposed to do.

That is, the bracket 220 has a horizontal conveying plate 2201 having a constant length in the transverse direction of conveyance, and is formed so as to project upward from the upper surface thereof and engages with the tray 6 to perform a lateral positioning operation. Provided on the above-mentioned upward flange 2202 and the lower surface of the horizontal transport plate 2201,
The chain link is sandwiched from the left and right, and a pair of legs 2203 that are loosely fitted and engaged with a rail 205 fixed to the guide frame 203 is integrally formed. This is as much as possible in the transport direction as shown in FIG. By being connected without a gap, the horizontal conveying plates 2201 of the brackets assembled to the pair of left and right chains form the conveying surface of the tray 6, and the upward flange 2202 positions the tray 6 in the lateral direction. . 2204 is a reinforcing flange of the upward flange 2202. It is also preferable to screw the bracket 220 to the chain 201 so as to securely assemble and fix it.

As described above, the conveyor chain 201 is gradually widened from the wide width state at the starting end side (see FIG. 7) by the aligning and conveying apparatus including the pair of left and right aligning and conveying conveyors 2 constructed by assembling the bracket 220. The width dimension is symmetrically contracted and closed, and the pair of upward flanges 2202 holds the tray 6 in a sandwiched state with the left and right upward flanges 2201 keeping the direction of the tray 6 constant without rotating around the vertical axis. It is possible to allow the light to pass through the transmitted light detecting device 3 and to accurately and accurately convey it on a straight line without deviation in the width direction of the conveyance path. In addition, even if the saucer is biased to one side of the solid line or the chain double-dashed line in FIG.
It can be accurately positioned at the center position without causing rotation about the vertical axis, and the sensitivity and accuracy of the transmitted light detection without light leakage by the pressing device 5 described above can be further improved.

Next, the structure of the receiving tray 6 of this example and the conveyer conveyor 1 with the direction alignment function will be described.

The detailed structure of the saucer 6 is shown in FIGS. 9 and 10. The saucer body 61 is made of an opaque rigid material (synthetic resin material), and is flat with a shallow depth as a whole except for the surrounding member. It has a very flat circular shape. And in the center,
An inner cylindrical wall 611 for mounting a cylindrical elastic body 63 having a receiving seat 631 and a through hole 632 in the up-down direction and a supporting elastic body 62 to which the cylindrical elastic body 63 is assembled is formed and the above-mentioned enclosure. An outer cylindrical wall 612 forming a member portion is formed.

The supporting elastic body 62 and the cylindrical elastic body 63 described above.
Are all made of an opaque elastic material, and when combined with each other, they constitute the above-mentioned vertical through hole 632 and the receiving means for forming the receiving seat 631 at the upper end opening edge for supporting the agricultural products to be placed. To do. The receiving seat 631 of this example has an outer lip-shaped seal portion 6311 whose diameter increases upward.
(631) and inward flange type seal portion 6312
The concentric double-circle seal of (631) makes it possible to perform good contact with agricultural products of different sizes so that ambient light does not leak into the through hole 632. The support elastic body 62 has a dish-like structure having a central opening, and its outer peripheral edge 621 has an outer cylindrical wall 61 of the saucer body 61.
The claw flange 622 provided on the lower side of the inner peripheral edge is engaged with the second claw 2 and is assembled so as to be engaged with the inward claw portion 6111 of the inner cylindrical wall 611 of the tray body 61. Further, in the cylindrical elastic body 63, the circumferential groove portion 633 formed between the lower through hole 632 portion and the upper receiving seat 631 portion is fitted to the inner peripheral edge portion of the supporting elastic body 62. It can be assembled.

Further, in the receiving tray 6 of this example, the receiving seat 63
1. The outer cylindrical wall 61 of the saucer body 61 is placed at a pair of positions sandwiching 1
2 are provided with opposing walls 64, 64 extending upward, and a light-transmissive opening 65 for allowing illumination light to pass from the outside to the inside is provided in a circumferential intermediate portion of the opposing walls 64, 64. , 65 are formed. Further, 66 is a ring-shaped enclosure member, and is provided with the opposing walls 64, 64 and the translucent openings 65, 65
Is supported by the columns 67, 67 provided on the upper surface, and the elastic cover 68 is attached to the surface thereof, so that the seat 63
It is designed to prevent the agricultural products placed on No. 1 from rolling off.

Reference numeral 69 denotes an elastic fin-like piece 691 which is attached to the pair of opposed walls 64, 64 and which is easily bendable.
Is a supporting piece member having, and is assembled and fixed to the facing wall 64 of the saucer body 61, and in this example, three upper and lower elastic fin-shaped pieces 691 extend toward the center,
When the agricultural product is placed on the receiving seat 631, it is deformed so that the mounted agricultural product can be supported in a stable posture.

Reference numeral 613 denotes a horizontal side surface groove in which a rail of the orientation device described below slides, and in this example, a pair of side surface grooves is provided on both side surfaces of the tray main body.

Next, a device for aligning the orientation of the tray 6 in this embodiment will be described. This device is shown in FIGS. In this orientation device 7 of this example, a transport path is configured by connecting a number of fixed roller rolling roller conveyors, and two rollers 72, 73 are separated from each other on one shaft 71 in the axial direction. These rollers are assembled and driven by pressing the lower drive belts 74 and 75 into contact with each other. The rotation speed of the rollers is that the short roller 72 on the right side of FIG.
₁ , the long roller 73 on the left side is set to the speed v ₂ (> v ₁ ). The axial length of the short roller 72 is set to be shorter than the diameter of the tray 6 conveyed from the upstream side so that the tray 6 can be rotated. Reference numeral 76 is a guide rail of the orientation device, and the side surface groove 613 of the tray 6 is arranged so as to extend from the straight line portion 761 along the short roller 72 to the straight line portion 763 along the long roller 73 through the oblique portion 762. It is installed along the height that can be slid on. By providing the guide rails 76 in this way, the tray 6 that has been conveyed from upstream while riding on the substantially short roller 72 has a speed difference (v ₂ > between the long roller 73 and the short roller 72).
v ₁ ) gives rotation about the vertical axis indicated by the arrow in FIG. Further, after the side surface groove 613 slides on the guide rail 76, it is guided by the guide rail 76 and conveyed without rotating. As shown in FIGS. 12 and 13, reference numeral 77 forms a conveying path for the tray 6 between the guide rail 76 and the guide rail 76, and moves along the track along the guide rail in the direction indicated by the arrow v ₃ (> v). Belt 772 with ₂ > v ₁ )
Is a rotating belt device provided to rotate
The rotation trajectory of the belt 772 rotated by the pulley 771 is the end portion 76 of the oblique portion 762 of the guide rail 76.
In No. 21, the gap is narrowed so that if the side groove 613 of the tray is not yet in sliding contact with the guide rail 76, it is forcibly and strongly rotated to perform the sliding operation. .

With the orientation device having such a structure, the tray 6 to be conveyed is directed to the downstream alignment conveying device with the light transmission opening 65 oriented in the lateral direction of the conveying path. become.

The orientation device 7 configured as described above, and then the tray 6 conveyed by the aligning and conveying device so as to pass through the transmitted light detecting device 3 are in a state in which the light transmitting opening 65 is directed to the side. In addition, since the light is accurately confronted and conveyed on the light receiving device 303 without causing misalignment, when the transmitted light of the agricultural product is measured by the transmitted light detecting device 3, the tray 6
Also, the posture of the agricultural product P is always stable, and there is no fear that the posture will change during the measurement of the transmitted light detection information. Moreover, the agricultural product P is secured by the illumination lamp 301 from the side on the saucer 6. It is possible to reliably receive and detect the light that has been illuminated by the light and transmitted through the produce through the through hole 632 of the saucer 6, and the sensitivity and accuracy are good with the optical path length of the transmitted light in the produce being shortened. Measurement can be realized.

[0052]

According to the agricultural product pressing device used in the internal quality measuring device of the present invention, the means for pressing the agricultural product to be introduced into the transmitted light detection position from above can be strictly synchronized in speed with the agricultural product conveyor. And, since the vertical movement of the pressing member for pressing the agricultural product can be performed independently independently of the movement thereof, without damaging and without giving the above-mentioned popping action, It can be stably supported on the agricultural product supporting part of the saucer, and therefore, the leakage of light from the tight sealing part for light shielding can be highly prevented, and the transmitted light of agricultural products can be detected with high sensitivity and accuracy, especially at high speed. , It has an extremely excellent effect when realizing highly efficient processing.

Since it is not affected by the difference in size and shape of agricultural products, it is extremely useful for maintaining stable agricultural products.

[0054] Particularly, the pressing member, along the conveying direction of the conveyor, at least two are configured to continuously connected at a density that can bullet adhesive engagement to one of produce
Then, the agricultural products are stably held by the multiple holding members,
It is possible to obtain a high adhesion sealing property with the agricultural product in the agricultural product supporting portion, perform transmitted light detection while reliably preventing the entry of ambient light, and perform highly sensitive and accurate internal quality measurement.

[Brief description of drawings]

FIG. 1 is a front view showing an outline of a measurement stage according to a first embodiment of the present invention.

FIG. 2 is an enlarged front view of the measurement stage in FIG.

FIG. 3 is a vertical sectional side view taken along the line AA of FIG.

FIG. 4 is a vertical sectional side view taken along the line BB of FIG.

5 is a partial arrow view in the C direction of FIG.

6 is a front view of FIG.

FIG. 7 is a plan view of the aligning and conveying device.

FIG. 8 is a partial plan view for explaining the relationship between a conveyor chain of a transfer conveyor having a lateral positioning function in the alignment transfer device and its drive mechanism.

9 is a vertical cross-sectional side view of the aligning and conveying device of FIG.

FIG. 10 is a perspective external view of a saucer.

FIG. 11 is a plan view of the alignment device.

12 is a vertical cross-sectional side view of the orientation device of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Conveyor 2 ... Alignment conveyer 201 ... Conveyor chain 202 ... Sprocket 203 ... Guide frame 204 ... Inclined track portion 205 ... Guide rail 206 ... Rotation drive mechanism 220 ... Horizontal positioning bracket (bracket) 2201 ... Horizontal transport plate 2202 ... Upward flange 2203 ... Leg 2204 ... Reinforcement flange 3 ... Transmitted light detection device 301 ... Dark room box 302 ... Illumination lamp 303 ... Light receiving device 304 ... Lower darkroom box 4 ... Sorting conveyor 5 ... Holding device 501 ... Link chain 502 ... Sprocket 503 ... Support bracket 5031 ... Bracket tip bifurcated part 504 ... Tilt member 5041 ... Recessed part 50411 ... A pair of sides Wall 50412 ... Bottom 5042 ... Roll 5043 ... Projection plate 5044 ... Tension spring 505 ... Pin 506 ... Holding member support rod 5061 ... (Root) plate-like portion 507 ... Guide rail 5071 ... Tilting running portion 508 ... Pressing member 5081 ... Pin 509 ... Frame base 6 ... Saucet 61 ... Saucet main body 611 ... Inner cylinder wall 6111 ... Inward Claw portion 612 ... Outer cylindrical wall 613 ... Side groove 62 ... Support elastic body 621 ... Outer edge 622 ... Claw flange 63 ... Cylindrical elastic body 631 ... Receiving seat 6311 ... -Lip-shaped seal portion 6312 ... Flange-shaped seal portion 632 ... Through hole 633 ... Circular groove portion 64 ... Opposing wall 65 ... Translucent opening 66 ... Enclosing member 67 ... Prop 68: Elastic cover 9 ... Support piece member 691 ... Elastic fin-like piece 7 ... Alignment device 71 ... Shaft 72 ... Roller (short roller) 73 ... Roller (long roller) 74, 75 ..Driving belt 76 ... Guide rail 761 ... Straight portion 762 ... Oblique portion 7621 ... End portion 763 ... Straight portion 77 ... Rotating belt device 771 ... Pulley 772 ... ·belt

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-10-202205 (JP, A) JP-A-8-201290 (JP, A) JP-A-9-124137 (JP, A) JP-A-9- 173992 (JP, A) JP-A-6-288903 (JP, A) JP-A-10-15499 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G01N 21/84-21 / 958 G01N 21/00-21/61 B07C 1/00-9/00 PATOLIS

Claims (3)

(57) [Claims] 1. A transport conveyor for transporting a tray on which agricultural products are placed in a line so as to pass over the transmitted light detection position of the agricultural products, and is installed above the transport conveyor so as to be spaced apart from the transport conveyor. A holding device for agricultural products having a large number of holding members which are endlessly rotated at a synchronized speed so as to have parallel straight track portions facing each other, wherein the straight track portions are opposed to a transmitted light detection position of a conveyor. Are arranged as described above, and at the start end of the linear track portion, the pressing member is moved downward from the retracted position to the engaging position where the agricultural product is elastically engaged, and at the terminal end of the linear track. An up-and-down moving means of the holding member for moving the down-moved holding member to the upper retracted position is provided, and the up-and-down moving means is provided with spring means for absorbing and absorbing the lower power of the holding member engaged with the agricultural product , The above The pressing member is a member of the transfer conveyor.
At least two per agricultural product along the transport direction.
A presser for agricultural products used in an internal quality measuring device, characterized in that three or more are connected at a density such that they can be elastically engaged . 2. A method according to claim 1, wherein the pan is conveyed on the conveyor is either a pan fixedly connected to the conveying conveyor or conveying not connected to the conveyer saucer free tray type A holding device for agricultural products used for an internal quality measuring device characterized by being present. 3. The method of claim 1 or 2, wherein the saucer,
A holding device for an agricultural product used for an internal quality measuring device, which has an annular agricultural product carrying portion made of an elastic body and has a through hole for leading out transmitted light which penetrates downward from the annular inside of the agricultural product carrying portion.