JPH034941A - Drying box suction detecting apparatus in drying box feed in and out machine to sample dryer - Google Patents

Abstract

PURPOSE:To take a proper step at the time of the generation of abnormality by detecting abnormality such as the falling of a drying box from a suction body by providing a drying box suction detecting means detecting whether the drying box is sucked by the suction body. CONSTITUTION:A drying box 3 having a sample for independent inspection received therein is sucked by a suction body 5 to be automatically fed in the drying chamber 2 of a sample dryer 1 and, by a drying box suction detecting means 22, it is detected whether the drying box 3 is sucked by the suction body 5. As the result, abnormality such as the falling of the drying box 3 from the suction body 5 and the suction missing of the drying box 3 of the suction body 5 can be detected and a proper step can be taken at the time of the generation of abnormality.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is used in a grain drying and preparation facility that receives grain from each producer, goes through the steps of drying, sorting, and storage, and then ships it. , the receipt relates to an improvement to a sample dryer that dries a small amount of samples for self-inspection collected from grains in a drying box.

(Conventional technology) - Traditionally, each time a grain such as paddy was received from each producer,
A part of the sample is taken as a sample for self-testing, and it is placed in a drying box.The worker carries this drying box into the drying room of the sample dryer one by one and dries it.After the drying is complete, the drying box is removed. They were being carried out one by one from the drying room. Further, the sample dryer includes a large number of drying chambers and dries a number of samples at the same time.

Therefore, in the past, there was a problem in that drying boxes containing samples for self-testing had to be carried into and out of the drying chamber of the sample dryer one by one, which required manual labor.

Therefore, in order to solve this problem and automate the process, the present inventors prototyped an automatic drying box loading and unloading device as described below.

In other words, this prototype machine uses an adsorbent such as an electromagnet to transport the drying box containing samples for self-inspection to the front of the target drying chamber of the sample dryer. The drying box integrated with the adsorbent is carried into the target drying chamber. When the drying of the sample is completed, the drying box is again adsorbed by the adsorbent and transported to a predetermined position.

(Problem B to be solved by the invention) However, in the prototype machine, when the drying box is released and dropped while the adsorbent is adsorbing drying, or when the adsorbent fails to adsorb the drying box, There was a problem that these abnormalities could not be detected, and this problem remained unsolved.

The present invention aims to solve this problem.

(Means for Solving the Problems) In order to achieve the above object, the present invention was configured as follows.

That is, the present invention provides a drying box loading/unloading machine for a sample dryer that adsorbs a drying box containing a sample for self-testing with an absorbent body and automatically carries it into and out of the drying chamber of the sample dryer. The device is equipped with a drying box adsorption detection means for detecting whether or not the drying box is adsorbed. Detects whether or not the drying box is being adsorbed.

Therefore, when the adsorbent releases the drying box and drops it while the adsorbent is adsorbing the drying box, the abnormality can be immediately detected, and appropriate measures can be taken when the abnormality occurs. Also,
When the adsorbent adsorbs the drying box and carries it out of the drying room,
Even when the adsorbent fails to adsorb the drying box, it can be detected, and appropriate measures can be taken when an abnormality occurs.

(Example) FIG. 1 is a front view of an embodiment of the present invention.

In the figure, l is a sample dryer, and the receiver has a large number of drying chambers 2 vertically and horizontally for drying samples for self-inspection collected from grains, and each drying chamber 2 has a drying box 3 with a porous bottom. to accommodate.

4 is the drying box delivered to Takatsuki, and the drying box 3 contains the sample.
is attracted by the electromagnet 5 and transported to the target drying chamber 2 of the sample dryer 1 by a moving mechanism (not shown), and when it stops in front of the target drying chamber 2, the rack 6 is advanced to move the drying box 3. It is carried into the drying room 2. After drying the sample, the rack 6 moves forward and the electromagnet 5 attracts the drying box 3. When the rack 6 moves back and pulls out the drying box 3, the drying box 3 is moved to a predetermined position by the moving mechanism. transported to.

The rank 6 is configured to mesh with a pinion (not shown) attached to the shaft of a rack moving motor 7. Moreover, a limit switch 8 for detecting that the rack 6 has moved forward to a predetermined position, and a limit switch 9 for detecting that the rack 6 has returned to the normal position are arranged at the upper part of the rack 6, respectively.

Attach a hanging plate lO to the front end of the rack 6, facing downward.
A hollow electromagnetic rotating shaft 11 is rotatably supported at the lower end of the hanging plate 10 by a bearing 12. A pulley 13 is attached to the electromagnet rotation shaft 11, and a belt 1 is connected to this pulley 13 and a pulley 16 attached to the shaft 15 of the electromagnet rotation motor 14.
Multiply by 7.

An electromagnet mounting shaft 18 is inserted into the hollow electromagnet rotating shaft 11, and the magnet mounting shaft 18 is configured to be movable in the axial direction and rotate integrally with the electromagnet rotating shaft 11.

A coil spring 19 is inserted through the front end of the electromagnet mounting shaft 8, and an electromagnet 5 that attracts the drying box 3 is attached to the front end of the coil spring 19.
Install. Thereby, the coil spring 19 always urges the electromagnet mounting shaft 18 forward.

A disk 21 is attached to the rear end of the electromagnet attachment shaft 18 with a port 20. A drying box 3 is located behind the disk 21 at a distance x.
A limit switch 22 for detecting drying box adsorption is arranged to detect whether or not the electromagnet 5 has adsorbed the drying box 3 when the drying box 3 is carried out from the drying chamber 2. Further, at a distance y behind the disk 21, an overload detection limit switch 23 is arranged to detect whether or not the electromagnet 5 is overloaded when the drying box 3 is carried into the drying chamber 2. . Here, the relationship between distance #X and distance My is assumed to be x<y.

Furthermore, around one disk 21, there is a disk “21 is 180”.
A limit switch 24 that detects that the electromagnet rotates in the normal direction and stops the electromagnet rotation motor 14, and a limit switch 25 that detects that the disc rotates 180'' in the reverse direction and stops the motor 14 are arranged.

Next, an example of the operation of the embodiment configured as described above will be described.

It is now assumed that the drying box 3 containing samples for self-inspection, which has been attracted by the electromagnet 5, has been transported to the front of the target drying chamber 2 by the moving mechanism (not shown) of the drying box-like loading/unloading device 4. do.

Next, when the rack 6 starts moving forward and stops at a predetermined position, the drying box 3 is completely inserted into the drying chamber z, and the electromagnet 5 is de-energized here. And U7ri6
When the drying box 3 retreats and returns to the predetermined position, the loading operation of the drying box 3 is completed.

By the way, there are cases where the drying box 3 stops at a position shifted from the front of the target drying chamber 2 for some reason, or the drying box 3 is not normally attracted to the electromagnet 5.

In such a case, when the drying box 3 advances to the entrance of the drying chamber 2 as the rack 6 moves forward, the rear end of the drying box 3 hits the outer periphery of the entrance, and the drying box 3 closes the entrance with an electromagnet. 5 and becomes stationary.

Thereafter, as the rack 6 continues to move forward, a load is applied to the electromagnet 5, and this load causes the electromagnet mounting shaft 18 integrated with the electromagnet to retreat against the elasticity of the coil spring 19, reducing the overload on the electromagnet 5. Ru.

As the load on the electromagnet 5 increases, the electromagnet mounting shaft 1
8 continues to move backward, and when the disk 21 attached to the rear end reaches the limit switch 23, the limit switch 23
outputs an overload detection signal. In response to this signal, the operation of the rack moving motor 7 is stopped, and the advancement of the rack 6 is stopped, so that problems such as damage to the drying box 3 can be prevented.

Thereafter, when the drying of the sample in the drying box 3 is completed, the electromagnet 5 is transported to the front of the target drying chamber 2 and becomes the state shown in the first figure.

Next, when the rack 6 starts moving forward and stops at a predetermined position, and the electromagnet 5 is energized, the electromagnet 5 attracts the drying box 3 and the electromagnet mounting shaft 18 as shown in FIG. 2(A). moves backward against the coil spring 19, causing the disc 21 to turn on the limit switch 22.

In this way, when the drying box 3 is carried out, when it is detected that the electromagnet 5 has attracted the drying box 3, the rack 6 retreats and returns to the predetermined position, and the drying box 3 is carried out from the drying room 2. Then, it is transported to a predetermined position.

By the way, as shown in FIG. 2(B), even though the electromagnet 5 is advanced toward the drying chamber 2 to a predetermined position, if the drying box 3 is not accommodated in the drying chamber 2 for some reason, the circle The plate 21 cannot turn on the limit switch 22, and the limit switch 22 remains in the OFF state.

In this way, when it is detected that the electromagnet 5 has not attracted the drying box 3 when carrying out the drying box, the electromagnet 5
For example, a predetermined control is carried out.

Next, another embodiment of the present invention will be described with reference to FIG.

In this embodiment, in place of the limit switch 22 shown in FIG. 1, a limit switch 30 for detecting drying box adsorption is attached to the electromagnet 5 to detect whether or not the electromagnet 5 is adsorbing the drying box 3. It is. For other configurations, please refer to the first
Since it is the same as the embodiment shown in the figure, its explanation will be omitted.

In the embodiment configured in this way, while the electromagnet 5 is adsorbing the drying box 3, the state shown in FIG. If not, the limit switch 30 is in the OFF state as shown in FIG. 4(B).

Therefore, the limit switch 30 connects the drying box 3 to the drying chamber 2.
There is an advantage that the adsorption state can be detected not only when the drying box 3 is being carried in and out of the drying box 3, but also while the drying box 3 is being transported in a predetermined position.

Next, examples other than the drying box will be described with reference to FIGS. 5 to 7.

This drying box 30 is made of a magnetic material that can be attracted to a front plate 31 by an electromagnet 5, and has an adsorbent body 3 having a hollow part 32.
3 is attached, and a display board 34 indicating the usage status of the drying box 30 is slidable inside the hollow part 32, and the display contents of the display board 34 can be viewed through a window 35.0 display board 34 The characters ``dry'' (dry) to indicate drying and ``empty'' (empty) to indicate empty are drawn on the surface, or they are colored differently depending on their condition.

The drying box 30 configured in this manner is oriented upward as shown in FIG.
There is an advantage that the "sky" can be visually seen through the window 35 when the drying device is turned upside down and not dried as shown in FIG. 7CB).

Next, configuration examples in addition to the heavy equipment for carrying in the drying box will be described with reference to FIGS. 8 and 9.

This drying box carrying heavy equipment 40 is used for sample drying IalA, IalA,
It is installed between two sample dryers IA and IB, which are arranged facing each other.

In the figure, 41 is a linear motor mounted on a moving table 42, and electromagnets 5A and 5B for attracting the drying box 3 are attached to both ends of a shaft 43 of the linear motor 41, respectively.

The movable cylinder 42 is movable in the vertical direction along the movable rail 44, and the upper and lower ends of the movable rail 44 are guided by a pair of upper and lower rails 45 to move between the sample dryer @IA and the sample dryer IB. Allows free reciprocation. Also 1
46 and 47 in the figure are limit switches that detect the position of the shaft 43, respectively.

In the dry box loading heavy machine 40 configured in this way.

When the drying box 3 is carried into the drying chamber 2 of the sample drying filA, it is carried out using an electromagnet 5A as shown in the figure, and on the other hand, when the drying box 3 is carried into the drying chamber 2 of the sample drying machine IB, it is carried out using an electromagnet 5B.

Therefore, one drying box loading machine can be used in common by two sample dryers, thereby reducing costs and installation space.

Next, another example of the structure of the sample dryer will be described with reference to FIG. 10.

This sample dryer includes a plurality of drying units 50A to 5.
0G, and these drying units 50A to 50C are stacked vertically.

First, the first stage drying unit) 50A has a plurality of drying chambers 52 that accommodate drying boxes 51, and a hot air path 53 common to each drying chamber 52 is provided on the bottom side of each of these drying chambers 52. An air exhaust path 54 common to each drying chamber 52 is provided on the upper side of each drying chamber 52.

Further, the starting end of the hot air path 53 is opened to form a suction port 55, and a heater (not shown) as a heat source is provided in the suction port 55. Further, the terminal end of the exhaust passage 54 is opened, a suction fan 56 is provided in this opening, and an exhaust duct 57 is integrally connected to the terminal end of the exhaust passage 54. And the exhaust duct 5
7 is opened, and a connecting cylinder 58 is provided to protrude from the opening.

Next, the second stage drying unit) 50B has the same structure as the first stage drying unit 22) 50A, but the connecting tube 58 of the first stage drying unit 50A is connected to the bottom of the exhaust duct 57. The only difference is that a through hole 59 is provided to insert the.

Further, the third stage drying unit) 50C is configured in the same manner as the second stage drying unit 50B.

In the sample dryer configured in this way, when each drying unit (50A to 50C) is stacked vertically, each exhaust duct 57 is formed integrally, so there is no need to install new exhaust duct piping at the time of installation. This has the advantage of not only being able to omit this, but also making the whole structure more compact.

(Effects of the Invention) As described above, in the present invention, a means for detecting whether or not the adsorbent is adsorbing the drying box is provided. Not only can abnormalities such as failures be detected, but also appropriate measures can be taken when an abnormality occurs.

[Brief explanation of the drawing]

Fig. 1 is a front view of the main part of an embodiment of the present invention, Fig. 2 is an explanatory diagram illustrating the operating state of a limit switch for detecting suction in the drying box, and Fig. 3 is a front view of the main part of another embodiment of the invention. 4 is an explanatory diagram explaining the operating state of the limit switch for detecting adsorption in the drying box, FIG. 5 is a front view showing another example of the structure of the drying box, and FIG. Fig. 7 is a diagram showing an example of its use, Fig. 8 is a plan view showing another configuration example of the drying box-like loading/unloading machine, Fig. 9 is a front view showing the main parts thereof, and Fig. 10 is a sample dryer and other parts. FIG. 2 is a cross-sectional view showing a configuration example. 1... Sample dryer, 2... Drying room, 3... Drying box, 4... Drying box-like input/output machine, 5... Electromagnet,
6...Electromagnet, 22.30...Limit switch. Figure 5 (A) (8) Figure 5

Claims (1)

[Scope of Claims] A drying box loading/unloading machine for a sample dryer that adsorbs a drying box containing a sample for self-assay with an adsorbent and automatically carries it into and out of a drying chamber of the sample dryer, wherein the adsorbent is A drying box suction detection device comprising a drying box suction detection means for detecting whether or not a drying box is suctioned.