JP6238430B2 - Powder inspection system - Google Patents

Description

  The present invention relates to a granular material inspection processing apparatus system.

Granules and powders, such as dust, metal pieces and other foreign substances mixed in granulars such as granules and drugs, edible powders and other chemicals and foods, and granular inspections to remove the foreign substances Various processing devices have been developed.
For example, Patent Document 1 discloses a granular material that takes an image of a granular material (granular material) to be inspected and removed, determines the presence / absence of a foreign material based on the captured image, and removes the target foreign material by discharging air. An inspection processing apparatus is disclosed.

JP 2000-162136 A

Since the conventional granular material inspection processing apparatus is not waterproofed at each part, the entire apparatus cannot be washed at the time of cleaning. Therefore, when cleaning, it is necessary to perform wiping cleaning using alcohol, which is a heavy burden on the operator. In addition, in these operations, the dust generated by the granular material cannot be completely removed, so when using a drug with a strong toxin, it is not possible to perform another drug inspection process using the same device. could not.
Therefore, it is desired to develop a granular material inspection processing apparatus that has a waterproof function and can completely remove dust by washing.

  This invention is made | formed in view of such a conventional situation, and it aims at provision of the granular material test | inspection processing apparatus system which can be washed with a waterproof function.

  The granular material inspection processing device system according to the present invention is a granular material inspection processing device system that is detachably provided with a powder contact portion that comes into contact with the granular material to be inspected, with the powder contact portion removed. The granular material inspection processing apparatus main body includes a water-repellent part or a pipe opening, and has a removable waterproof cover that covers the water-repellent part or the pipe opening in a watertight manner.

Further, in the particulate inspection processing apparatus system according to the present invention, the particulate inspection processing apparatus main body includes a drive control unit covered with a cover partition, and a rotating shaft penetrating the cover partition, It is preferable that the rotating shaft has a bearing portion that is the water-repellent portion at the tip, the waterproof cover is formed in a cap shape, and includes a water stop member that stops water between the outer diameter portion of the rotating shaft. .
Moreover, the granular material inspection processing apparatus system which concerns on this invention is a granular material inspection processing apparatus system provided with the powder contact part which the granular material made into test | inspection contacts removably, Comprising: The removed granular material inspection processing apparatus main body has a water repellent part, and has a removable waterproof cover that covers the water repellent part in a watertight manner, and the granular material inspection processing apparatus main body is covered with a cover partition. A rotating shaft penetrating the cover partition, the rotating shaft being fixed to the cover partition, a rotating shaft passing through the fixed shaft, and the fixed shaft. A bearing portion that is the water-repellent portion that rotatably holds the rotating shaft in the vicinity of the tip, and the waterproof cover is formed in a cap shape and covers the tip of the fixed shaft, and the cover body And the fixed And water-shutoff member for water stopping between the outer diameter portion of the shift may be provided with a.
Further, in the above granular material inspection processing apparatus system, the rotating shaft protrudes from a tip of the fixed shaft, a bottom hole of the cover body is provided with a central hole through which the rotating shaft is inserted, and the waterproof cover is Further, a water stop member for stopping water between the central hole and the outer diameter portion of the rotating shaft may be further provided.
Moreover, in the above-mentioned granular material inspection processing apparatus system, it is good also as a structure by which the female screw hole for attaching the roller which transfers a granular material is provided in the front-end | tip of the said rotating shaft.

  Moreover, the granular material test | inspection processing apparatus system in another embodiment which concerns on this invention is located downstream of the supply means which supplies the granular material made into test object for every fixed amount, The said granular material Conveying means for loading and transferring a body, foreign matter detecting means for detecting foreign matter mixed in the granular material placed on the transporting means, and removing foreign matter based on the detection result by the foreign matter detecting means Foreign matter removing means, drive control means for driving and controlling any one of them, a drive section connected to the drive control means and operated by the drive control means, and the drive section covering the drive control means and being inserted through the drive section And a waterproofing means for suppressing moisture from entering the inside of the cover partition via the insertion hole.

  In the particulate inspection processing system according to the present invention, it is preferable that the waterproof unit is an air supply unit that is provided inside the cover partition and holds the inside of the cover partition to a positive pressure.

  In the particulate inspection processing system according to the present invention, a positive pressure chamber that covers a certain region including the insertion hole is provided inside the cover partition wall, and the positive pressure chamber is made positive by the air supply means. It is preferable that pressure holding is possible.

  In the granular material inspection processing system according to the present invention, the waterproof means includes a covering plate that covers the insertion hole outside the cover partition wall, and is interposed between the cover plate and the cover partition wall. And a pressing means for pressing the covering plate against the cover partition wall, and the pressing means compresses the packing so that the intrusion of water from the insertion hole can be suppressed. preferable.

  Moreover, the granular material inspection processing device system according to the present invention is the granular material inspection processing device system of the various embodiments described above, and preferably includes a dehumidifying device for drying the whole.

According to the present invention, a removable waterproof cover that covers the water-repellent part or the pipe opening in a water-tight manner with respect to the granular material inspection processing apparatus main body from which the part having the powder contact portion that comes into contact with the granular material is removed. Since it has, it becomes possible to carry out whole washing, such as sprinkling water with respect to a granular material inspection processing system.
Therefore, when edible powder or the like is an object to be inspected as a granular material, the entire apparatus can be kept clean and food safety can be improved. Further, even when a toxic drug or the like is used as an inspection object as a granular material, another drug can be used as an inspection object by performing round washing after use.

It is a front view of the granular material inspection processing system concerning a 1st embodiment of the present invention. In the granular material inspection processing apparatus system according to the first embodiment of the present invention, FIG. It is sectional drawing which shows the modification of a foreign material removal part in the granular material test | inspection processing apparatus system which concerns on 1st Embodiment of this invention. In the granular material inspection processing apparatus system concerning a 1st embodiment of the present invention, it is a modification of a foreign substance removal part, and is a sectional view which expanded a removal nozzle. In the granular material inspection processing apparatus system according to the first embodiment of the present invention, it is a cross-sectional view showing an opening / closing mechanism that is a modified example of the foreign matter removing unit and opens and closes a collecting pipe and an air inlet provided in the collecting pipe. is there. In the granular material inspection processing apparatus system according to the first embodiment of the present invention, a cross-sectional view of a state where a waterproof cover is attached to the suction port is shown, and the waterproof cover shown in FIGS. 6 (a) and 6 (b) These are examples of different forms. Sectional drawing of the waterproof cover with which the roller rotating shaft in the granular material test | inspection processing apparatus system which concerns on 1st Embodiment of this invention and the said roller rotating shaft is mounted | worn is shown, Fig.7 (a) is sectional drawing of a roller rotating shaft. FIG. 7B is a cross-sectional view of the waterproof cover. It is sectional drawing of the state which attached the waterproof cover to the roller rotating shaft in the granular material test | inspection processing apparatus system which concerns on 1st Embodiment of this invention. The 2nd pulley axis | shaft in the granular material test | inspection processing apparatus system which concerns on 1st Embodiment of this invention is shown, Fig.9 (a) is a front view, FIG.9 (b) is a longitudinal cross-sectional view. In the granular material inspection processing system according to the first embodiment of the present invention, it is a cross-sectional view of a state in which a waterproof cover is attached to a second pulley shaft. FIG. 11A shows a slide mechanism and an air cylinder 130 for slidingly driving a first pulley shaft, and a first positive pressure chamber 120 in the particulate inspection processing apparatus system according to the first embodiment of the present invention, and FIG. FIG. 11B is a top view. It is sectional drawing which shows the raising / lowering mechanism which raises / lowers a removal nozzle in the modification of the foreign material removal part of the granular material inspection processing apparatus system which concerns on 1st Embodiment of this invention. The 1st pulley axis | shaft and slide plate of the granular material test | inspection processing apparatus system which concern on 2nd Embodiment of this invention are shown, Fig.13 (a) is sectional drawing in the state which applied the tension to the endless belt, FIG. (B) is sectional drawing in the state which loosened tension and removed the endless belt, FIG.13 (c) is a front view in the state shown in FIG.13 (b).

  Hereinafter, a granular material inspection processing system 1 according to an embodiment of the present invention will be described with reference to the drawings. In the drawings used in the following description, for the purpose of emphasizing the feature portion, the feature portion may be shown in an enlarged manner for convenience, and the dimensional ratios of the respective constituent elements are not always the same as in practice. Absent. In addition, for the same purpose, portions that are not characteristic may be omitted from illustration.

<< First Embodiment >>
<Overall configuration of particulate inspection processing system>
The front view of the granular material test | inspection processing apparatus system 1 which concerns on FIG. 1 at this embodiment is shown. This granular material inspection processing system 1 is used for inspecting foreign matters such as dust, metal pieces, and hair mixed in granular materials such as granules, tablets, or powders, and for removing the foreign matters. Device.

The granular material inspection processing system 1 includes an upper housing 2 and a lower housing 3 which are two housings separated vertically. The upper housing 2 is provided with an upper housing door so that the front side can be opened, and the inside of the upper housing 2 can be opened. In FIG. 1, the upper housing door is omitted and the inside of the upper housing 2 is illustrated as being open.
Inside the upper housing 2, there are provided devices for supplying powder particles to be subjected to inspection processing, dispersing and inspecting them, and removing foreign matters mixed in the powder particles. The granular material is conveyed from the left side to the right side from the front of the granular material inspection processing system 1, and the foreign material is inspected in the conveying path. Removed.

Inside the lower housing 3, pipes connected to the respective devices provided inside the upper housing 2 and a foreign material storage tank for storing removed foreign materials are installed. The lower housing 3 is provided with a door 3a that can be opened from the front side, and an operator can collect foreign matters in the foreign matter storage tank at the time of inspection.
Further, a caster 4 is attached to the lower surface of the lower housing 3, and the granular material inspection processing apparatus system 1 can be easily moved by the caster 4.

This granular material inspection processing system 1 is configured such that a part including a portion (a powder contact portion) with which a granular material to be in contact comes into contact can be easily removed, and the powder contact portion can be washed in a circle. it can. FIG. 2 shows an exploded view of the removable part of the granular material inspection processing system 1 according to the present embodiment. This granular material inspection processing apparatus main body 1A is configured such that the entire apparatus can be washed by spraying water.
Hereinafter, the configuration of each device provided in the upper housing 2 will be described with reference to FIGS. 1 and 2.

(Powder supply device)
In the uppermost stream of the upper housing 2 (left side in FIG. 1), a granular material supply device 10 (supply means) is provided. A hopper 5 formed in a hollow conical shape is provided on the upper part of the powder and particle supply device 10 to supply the powder and particles downward. The hopper 5 is inserted and fixed in an installation hole 2 a provided in the top surface 2 c of the upper housing 2. Further, the hopper 5 includes a hopper lid 5a so that dust and the like in the room where the powder inspection apparatus system 1 is grounded are not mixed. The lower end portion of the hopper 5 is formed in a cylindrical shape with a flange, and a ferrule joint is formed by the cylindrical body 18A and the clamp band 18C in which the flange having the same shape is formed, thereby forming an easily detachable connection portion 18. ing. In addition, packing 18B is interposed between the lower end part of the hopper 5 and the cylinder 18A, and the granular material does not flow out from the connection part 18.

In the granular material supply device 10, the granular material supplied downward from the hopper 5 through the cylindrical body 18 </ b> A can be dispersed in a certain amount and supplied to the vibration feeder 20 downstream.
As shown in FIG. 2, the powder supply device 10 includes a connecting portion 18, an upper lid 17, a guide fixing bolt 16, a guide 15, a lower lid 14, a roller storage 11, a roller 12, and a roller in order from the top. A mounting body 13 is provided.
The roller 12 is attached to a roller rotation shaft 19 (rotation shaft) protruding from the roller driving device 10A, and is rotated at a constant speed around the roller rotation shaft 19 by the roller driving device 10A.
The roller 12 is attached to the roller rotation shaft 19 by screwing the male screw of the roller attachment body 13 into a female screw hole 19a (see FIG. 7B) provided at the tip of the roller rotation shaft 19. It can be done easily (without tools).
Moreover, 10 A of roller drive devices are covered watertight with the cover partition 10B.

  On the peripheral surface of the roller 12, square-shaped grooves 12 a that serve as storage portions for containing a certain amount of powder particles are formed in parallel at regular intervals. Further, the guide portion 15 has a lower surface that is an arcuate curved surface along the peripheral surface of the roller 12, and an appropriate gap is formed with respect to the peripheral surface of the roller 12 by the guide portion fixing bolt 16. Can be attached. The guide portion fixing bolt 16 is knurled on the head, and the guide portion fixing bolt 16 can be easily fixed by hand.

The granular material supplied downward from the connecting portion 18 is introduced into an opening 15 a provided in the guide portion 15, and is further accommodated in a groove 12 a of the roller 12 from the lower surface of the guide portion 15 by a predetermined amount. At this time, the lower surface of the guide portion 15 plays a role of grinding so that the granular material accommodated in the groove 12a of the roller 12 becomes a predetermined amount.
The granular material accommodated in the groove 12a of the roller 12 is transferred below the roller 12 by the rotation of the roller 12 and naturally falls. By rotating the roller 12 at a constant speed, the powder particles fall from the groove 12a at a constant interval, and a constant amount of the powder particles can be supplied to the downstream vibration feeder 20 at a constant interval.

  As shown in FIG. 2, the connecting portion 18, the upper lid body 17, the guide portion fixing bolt 16, the guide portion 15, the lower lid body 14, the roller storage body 11, the roller 12, and the roller attachment body 13 of the granular material supply device 10 are , Each can be disassembled. These are portions (contacting portions) that are in direct contact with the granular material, and can be washed by being decomposed. In addition, in the disassembly work of each part, it is not necessary to use a tool.

(Vibration feeder)
A vibrating feeder 20 is provided below the granular material supply device 10, and the granular material supplied from the granular material supply device 10 by the vibration feeder 20 is uniformly leveled downstream (the conveyor unit 30). Shed.
The vibration feeder 20 includes a vibration part 21 and a receiving plate 22 installed on the upper surface of the vibration part 21. The vibration part 21 has a driving device for applying vibration to the receiving plate 22 therein. By adopting a vibration part 21 having a waterproof structure, the vibration part 21 can be washed.

The receiving plate 22 is disposed so as to extend from the lower position of the granular material supply device 10 to one end of the conveyor unit 30. The receiving plate 22 receives the powder discharged from the powder supply device 10, leveles the powder by the vibration of the vibration unit 21, and supplies the powder to the conveyor unit 30. In this embodiment, while arrange | positioning the receiving plate 22 horizontally, a granular material is moved to the conveyor part 30 side by making it vibrate in the diagonally forward direction with respect to the advancing direction. Moreover, you may arrange | position the receiving plate 22 so that it may incline to the conveyor part 30 side.
The receiving plate 22 is formed by bending the edge in the width direction upward, and in the path from the lower side of the powder supply device 10 to the position end of the conveyor unit 30, the powder is formed in the width direction. It is configured not to fall.

  The vibration part 21 is divided into an upper body 21a and a lower body 21b. In the upper housing 2 of the granular material inspection processing apparatus system 1, the lower body 21b fixed to the installation surface 2b for installing each apparatus. On the other hand, the upper body 21a slides laterally (see FIG. 2). By sliding the upper body 21a in this way, it is possible to improve the workability when removing the above-described powder supply apparatus 10.

  In FIG. 2, which is an exploded view, the receiving plate 22 is shown fixed to the vibrating portion 21, but the receiving plate 22 preferably has a structure that can be easily detached from the vibrating portion 21. . By comprising in this way, the receiving plate 22 which is a powder contact part which contacts a granular material can be removed, and it can wash. Moreover, it is good also as a structure which replace | exchanges a powder contact part, without removing the receiving plate 22, by sticking the exchangeable sheet | seat on the upper surface of the receiving plate 22. FIG.

(Conveyor part)
The granular material supplied from the vibration feeder 20 is further transferred downstream in the conveyor unit 30 (conveying means). The conveyor unit 30 has an endless belt 38 and a first pulley 34A, a second pulley 34B, and a third pulley 34C that apply a tension between the right end of the vibration feeder 20 and the non-defective chute 6 to rotate the endless belt 38. ing.
As shown in FIG. 2, the first pulley 34 </ b> A, the second pulley 34 </ b> B, and the third pulley 34 </ b> C are a first pulley shaft 31 (rotating shaft) that protrudes from the electrical machine room 9 disposed on the back side of the conveyor unit 30. The second pulley shaft 32 (rotating shaft) and the third pulley shaft 33 (rotating shaft) are respectively attached. The second pulley shaft 32 is connected to drive control means inside the electric machine room 9, and the endless belt 38 can be driven clockwise by rotating the second pulley shaft 32 clockwise by the drive control means. it can. The first pulley shaft 31 and the third pulley shaft 33 are configured to be rotatable, and can rotate following the driving of the endless belt 38.

  Further, the first pulley shaft 31 is slid in the left and right direction together with the slide plate 37 provided on the front surface of the electric machine room 9, and the slide mechanism 124 and the air cylinder 130 (see FIG. 11) inside the electric machine room 9. A tension applying mechanism 132 (drive control means) is provided. When the first pulley shaft 31 is slid to the right by the action of the slide mechanism 124 and the air cylinder 130, the endless belt 38 wound around the first pulley 34A, the second pulley 34B, and the third pulley 34C is loosened, The endless belt 38 can be easily removed. Further, when attaching the endless belt 38, the endless belt 38 is wound around the first pulley 34A, the second pulley 34B, and the third pulley 34C, and the first pulley shaft 31 is slid to the left to endlessly. Tension can be applied to the belt 38.

In addition to the endless belt 38, the first pulley 34A, the second pulley 34B, and the third pulley 34C can be easily attached and detached without using a tool (see FIG. 2).
A female screw hole 32a (see FIG. 9) is formed at the tip of the first pulley shaft 31, and a locking body 36 and a first pulley 34A are attached, and a fixing bolt 35 is screwed into the female screw hole 32a. Thus, the first pulley 34 </ b> A is fixed to the first pulley shaft 31. Therefore, by removing the fixing bolt 35 and pulling out the first pulley 34 </ b> A and the locking body 36 in the extending direction of the first pulley shaft 31, these can be easily detached from the first pulley shaft 31. The fixing bolt 35 has a head that is knurled so that it can be turned by hand, and no tool is required for attachment / detachment.
The second pulley shaft 32 and the third pulley shaft 33 also have the same configuration as the first pulley shaft 31, and can be easily (without tool) the second pulley 34B by the same method as the first pulley shaft 31. The third pulley 34C can be removed.

The conveyor unit 30 is provided with a pair of dust suction nozzles 7 and 7. The dust adhering to the outer peripheral surface and the inner peripheral surface of the endless belt 38 can be sucked by these dust suction nozzles 7 and 7 in the lower half peripheral portion where the endless belt 38 is driven from right to left.
As shown in FIG. 2, the dust suction nozzle 7 is configured to be detachable. The dust suction nozzle 7 is fixed to a suction port 7A (pipe opening) provided in the electrical machine room 9 by forming a ferrule joint with a packing 7c and a clamp band 7b. Therefore, it can be easily removed by loosening the thumb screw part of the clamp band 7b.

  As described above, the endless belt 38 and the dust suction nozzles 7 and 7, which are portions that directly contact with the granular material (the powder contact portion), can be easily attached and detached (without tools) in each portion of the conveyor unit 30. . Further, the first pulley 34A, the second pulley 34B, and the third pulley 34C that are in contact with the endless belt 38 that is the powder contact portion can also be easily attached and detached (without a tool). Moreover, these can be washed in a circle.

(Imaging part)
An imaging unit 80 (foreign matter detection means) is provided in the transfer path of the granular material by the conveyor unit 30, and a two-dimensional image of a certain area of the granular material conveyed on the conveyor unit 30 is taken. Inspect the powder particles for contamination. The imaging unit 80 includes a plurality of CCD cameras 81 (two in FIG. 2) arranged in the width direction of the endless belt 38 of the conveyor unit 30, two sets of upper illumination devices 82A and 82B, and one set of lower illumination devices 82C. Have.

  The CCD camera 81 captures a two-dimensional image of a certain region of the granular material that is conveyed on the conveyor unit 30. The image data photographed by the CCD camera 81 is transmitted to an image inspection unit composed of a CPU or the like, and is subjected to image processing in the image inspection unit to determine whether or not a foreign substance is mixed in the granular material. For example, image data of a reference granular material is stored in advance, and compared with the transmitted image data of the granular material. When the image data is equal to or greater than a set value, it is determined that there is a foreign object.

The upper illumination devices 82A and 82B are arranged in an eight-letter shape from the front, and irradiate light onto the imaging target portion of the CCD camera 81 from above. The lower illumination device 82C irradiates the imaging target portion with light from the back surface side (inner peripheral side) of the endless belt 38 so as to face the upper illumination devices 82A and 82B.
The light emitting units of the upper illumination devices 82A and 82B and the lower illumination device 82C are provided with LED lights arranged in a straight line, and the portions where the LED lights are arranged in parallel are a waterproof sealed glass surface and Covered with a housing. Therefore, the upper illumination devices 82A and 82B and the lower illumination device 82C can be cleaned by applying water or the like.

(Foreign substance removal part)
A foreign matter removing unit 50 (foreign matter removing means) is provided at the terminal end (right end in FIG. 2) of the conveyor unit 30. The foreign matter removing unit 50 includes a cover 51 that can be removed during cleaning, and protects a removal nozzle 56 and the like for removing foreign matter.
The removal nozzle 56 is provided so as to stand by near the end of the conveyor unit 30, and when the imaging unit 80 determines that a foreign substance is mixed in the granular material, that is, when the signal is received, the removal nozzle 56 Foreign matter can be removed by sucking a powder body in a certain area on the conveyor section 30 from the tip of 56.
The removal nozzle 56 is held by a nozzle holding member 57 so that the suction port is near the end of the conveyor unit 30. Further, a ferrule joint is formed by a clamp band 52 and a packing 53 on the side opposite to the suction port of the removal nozzle 56 and is connected to the suction hose 54 in an airtight manner.

Further, the other end of the suction hose 54 is connected to a suction port 55 (pipe opening) provided on the side wall of the lower housing 3 by forming a ferrule joint with a clamp band 52 and a packing 53. The suction port 55 is configured to generate a negative pressure for sucking foreign matter by a suction device (not shown) provided inside the lower housing 3. In addition, a foreign substance storage container (not shown) is provided in the lower housing 3 between the suction port 55 and the suction device, and the foreign substance sucked into the foreign substance storage container is accommodated to the outside. It is configured not to be discharged.
As shown in FIG. 2, the removal nozzle 56 and the suction hose 54 can be easily attached and detached without using tools by the clamp bands 52 and 52 and the packings 53 and 53. The removal nozzle 56 and the suction hose 54 are powder contact parts, and since these are removable, they can be washed in a circle.

(Deformation example of foreign matter removal part)
In the granular material inspection processing system 1 shown in FIGS. 1 and 2, the foreign matter removal unit 50 has one removal nozzle 56 and a suction port 55 connected to the removal nozzle 56, and the foreign matter is detected by the imaging unit 80. In this case, the suction is performed from the suction port 55 in accordance with the timing when the foreign matter reaches the vicinity of the tip of the removal nozzle 56, and is sucked through the removal nozzle 56. However, in order to remove foreign matters more reliably and without waste, it is preferable to employ a foreign matter removing unit 150 according to a modified example shown below.
FIG. 3 shows a cross-sectional view of a foreign matter removing unit 150 according to a modification. FIG. 4 is an enlarged cross-sectional view of the removal nozzle 200 in the foreign matter removal unit 150. Based on these, the foreign matter removing unit 150 of the modified example will be described in detail.

As described above, the imaging unit 80 is provided in the transfer path of the granular material by the conveyor unit 30, and the foreign material removal unit 150 disposed at the end of the conveyor unit 30 detects the foreign material detected by the imaging unit. Can be removed.
As shown in FIG. 2, a plurality of CCD cameras 81 (two in FIG. 2) are arranged in parallel in the width direction of the endless belt 38 in the imaging unit 80, and are sent on the endless belt 38. The granular material is photographed from above over the entire width of the endless belt 38. The photographed image data is sent to the image processing apparatus provided in the electrical machine room 9 and is determined based on the photographed image whether foreign matter is present in the entire width of the endless belt 38. Further, when there is a foreign object, the position where the foreign object exists is detected.

  The foreign matter removing unit 150 of the modified example includes a nozzle holding member 212 extending horizontally from the front of the electrical machine room 9 along the width direction of the endless belt 38, a plurality of removal nozzles 200 held by the nozzle holding member 212, The plurality of removal nozzles 200 are collectively connected, and are roughly constituted by a collecting pipe 210 that introduces foreign matters sucked by the removal nozzles 200 and powders around them into a foreign matter storage container (not shown).

  A plurality of removal nozzles 200 are arranged in the width direction of the endless belt 38, and the plurality of removal nozzles 200 cover the entire width of the endless belt 38. Since each removal nozzle 200 can be sucked independently, by arranging a plurality of removal nozzles 200 side by side, it is possible to suck only the granular material in the area where foreign matter is detected by the removal nozzle 200. That is, it is possible to reduce the amount of non-defective products (powder particles in which no foreign matter is mixed) that are removed together with the foreign matter.

  It is preferable to provide the number of removal nozzles 200 corresponding to the number of CCD cameras 81 arranged in parallel in the width direction of the endless belt 38 in the imaging unit 80. In this case, out of a plurality of CCD cameras 81, 81... Installed in the endless belt width direction, a CCD camera 81 that captures a foreign substance and a plurality of removal nozzles 200, 200 installed in the endless belt width direction. , The removal nozzle 200 installed at the corresponding position sucks in the powder particles in a certain area photographed by the CCD camera 81, so that foreign matters can be reliably removed.

  The removal nozzle 200 is fixed to the nozzle holding member 212 by a nozzle fixing bolt 213. The nozzle fixing bolt 213 is knurled on the head. Therefore, the removal nozzle 200 can be easily attached to and detached from the nozzle holding member 212 by manually turning the nozzle fixing bolt 213. Moreover, since the removed removal nozzle 200 has a simple structure as will be described below, it can be washed.

  As shown in an enlarged view in FIG. 4, the removal nozzle 200 includes a nozzle portion 201 and an ejector portion 202. The nozzle unit 201 constitutes a suction mechanism for sucking in foreign matter, and includes a suction hole 203 extending horizontally in the same direction as the feed direction of the endless belt 38 at the terminal position of the conveyor unit 30. The tip end surface 204 has an arcuate curved surface similar to the outer peripheral surface of the endless belt 38 that bends in an arc along the second pulley 34B, and the tip end surface 204 formed of the arcuate curved surface is an endless belt 38 that bends in an arc. The endless belt 38 is disposed opposite to the outer peripheral surface with a predetermined gap.

  The ejector unit 202 is a suction force generation mechanism for sucking in foreign matter, and includes a communication hole 205 that is continuous with the suction hole 203, and is disposed to be inclined toward the collecting pipe 210 around the tip of the communication hole 205. A jet nozzle 206 is formed, and a compressed air supply port 207 is communicated with the jet nozzle 206. When compressed air is supplied from the compressed air supply port 207, the compressed air is ejected from the jet nozzle 206 toward the collecting pipe 210. A large negative pressure is generated in the vicinity of the front end portion of the communication hole 205 due to the jetted air flow, and the foreign pressure is sucked together with air from the front end of the suction hole 203 by this negative pressure, and is sent to the collecting pipe 210.

  Further, in the case of the present invention, a reed valve 209 that is openable and closable for backflow prevention is attached so as to cover the compressed air discharge port 208 at the end face of the compressed air discharge port 208 of the ejector portion 202. The reed valve 209 is made of an elastic thin plate having resilience such as an elastic plastic sheet or an elastic metal plate, and covers the compressed air discharge port 208 when the compressed air is not ejected from the jet nozzle 206. When compressed air is ejected from the jet nozzle 206 serving as a lid, the compressed air is pushed up by the air flow, and the compressed air discharge port 208 is opened as shown by a two-dot chain line in FIG. By providing this reed valve 209, as will become clear from the description of the operation described later, it is possible to prevent the backflow of air in the collecting pipe 210 during the foreign substance suction operation.

  A compressed air tube 211 is connected to the compressed air discharge port 208, introduced into the electric machine room 9, and connected to an air supply means such as a compressor via a solenoid valve (not shown). By performing ON / OFF control of the solenoid valve, the compressed air from the air supply means can be sent to the removal nozzle 200 through the compressed air tube 211 at a predetermined timing.

FIG. 5 is a cross-sectional view of the foreign matter removing unit 150 according to the modification viewed from the side surface of the collecting pipe 210. The collecting pipe 210 has a funnel shape that narrows from the upper side to the lower side, and a connecting pipe 214 is connected to a lower end portion of the collecting pipe 210 by forming a ferrule joint with a clamp band 215. The foreign matter sucked from the removal nozzle 200 is sent to the collecting pipe 210 and is collected from the collecting pipe 210 to the foreign substance storage container (not shown) through the connection pipe 214. The collecting pipe 210 is configured to be easily removable without using a tool.
In addition, an upper portion of the collecting pipe 210 has an attachment hole 210a for inserting and attaching the ejector portion 202 of the removal nozzle 200. In the collecting pipe 210 of the example shown in FIG. 5, four removal nozzles 200 are attached to the attachment holes 210a.

A suction device (not shown) is connected to the tip of the connection pipe 214 together with the foreign substance storage container described above. A plurality of air inlets 210b are provided on a side surface 210c of the collecting pipe 210 on the electric machine room 9 side. As a result, an air flow from the intake port 210 b toward the connection pipe 214 is formed inside the collecting pipe 210.
The foreign matter sent into the collecting pipe 210 together with the compressed air by the removal nozzle 200 rides on the air flow toward the connection pipe 214 and is smoothly collected in the foreign substance storage container via the connection pipe 214.
The intake port 210b is provided with a check valve, which prevents air from flowing from the inside of the collecting pipe 210 to the outside. Accordingly, the foreign matter inside the collecting tube 210 and the powder and particles sucked together with the foreign matter do not flow out of the collecting tube 210.

A closing plate 220 serving as a damper for closing the intake port 210b is installed on the cover partition wall 9A side of the electrical machine room 9.
The blocking plate 220 is affixed to a metal plate 220b formed to have a size capable of simultaneously covering the plurality of air inlets 210b provided on the side surface 210c of the collecting pipe 210, and one surface on the collecting pipe 210 side of the metal plate 220b. It is composed of a flexible sheet 220a made of attached urethane or the like. By bringing the closing plate 220 into contact with the side surface 210c of the collecting pipe 210, the air inlet 210b can be closed, and the flow of air taken into the collecting pipe 210 from the air inlet 210b can be suppressed.

By closing the air inlet 210b with the closing plate 220, the inside of the collecting pipe 210 and the removal nozzle 200 can be set to a negative pressure. By this negative pressure, an air flow from the tip of the suction hole 203 of the removal nozzle 200 toward the collecting pipe 210 is formed, and a suction operation can be continuously performed from the suction hole 203.
For example, when it is impossible to determine whether foreign matter is mixed in the granular material on the conveyor unit 30 due to an abnormal stop of the imaging unit 80 or the like, uninspected granular material may be collected in the non-defective chute 6. It is preferable to collect all the granular materials in the foreign matter storage container via the collecting pipe 210 so that there is no such problem.
In such a case, the particle fluid on the conveyor unit 30 can be continuously collected in the foreign matter storage container by closing the air inlet 210b with the closing plate 220.

  The closing plate 220 is installed in the cover partition wall 9 </ b> A of the electrical machine room 9 that faces the collecting pipe 210. An opening / closing mechanism 230 is provided inside the electric machine room 9 to bring the closing plate 220 close to and away from the side surface 210 c of the collecting pipe 210. The opening / closing mechanism 230 has an air cylinder 233 as drive control means and a linear bush 231 (insertion hole) that assists the driving operation by the air cylinder. Details of the opening / closing mechanism 230 will be described later.

The operation of the foreign matter removing unit 150 of the modified example configured as described above will be described. When no foreign matter is detected in the imaging unit 80, suction from the removal nozzle 200 is not performed. Further, the inlet 210b of the collecting pipe 210 is open, and air flows from the inlet 210b toward the inside of the collecting pipe 210.
When a foreign object is detected in the imaging unit 80, the position of the foreign object is specified based on information from the imaging unit 80, the foreign object reaches near the end of the conveyor unit 30, and the electromagnetic valve corresponding to the position of the foreign object is turned on. Compressed air is supplied to the removal nozzle 200 through the compressed air tube 211 by / OFF control. The compressed air supplied to the removal nozzle 200 is ejected from the jet nozzle 206 of the ejector portion 202 toward the collecting pipe 210.

  When compressed air is ejected from the jet nozzle 206, a large negative pressure is generated near the intersection of the jet nozzle 206 and the communication hole 205 due to this air flow, and foreign matter is sucked together with air from the tip of the suction hole 203 by this negative pressure. And introduced into the collecting pipe 210. At this time, since the reed valve 209 attached to the end face of the compressed air discharge port 208 is pushed up and opened by the jetted airflow, introduction of foreign matter into the collecting pipe 210 is not hindered.

  Inside the collecting pipe 210, there is formed a flow of air that flows in from the intake port 210b and is introduced into the connecting pipe 214. Therefore, the foreign matter introduced into the collecting pipe 210 through the removal nozzle 200 is smooth. It is introduced into the connection pipe 214.

  Further, when all the powder particles on the conveyor unit 30 are collected in the foreign matter storage container, the closing plate 220 is operated by the opening / closing mechanism 230, and a plurality of air inlets 210b provided on the side surface 210c of the collecting pipe 210 are operated. Cover and close. As a result, the inside of the collecting pipe 210 and the removal nozzle 200 is set to a negative pressure, and the powder particles on the conveyor unit 30 can be continuously collected from the suction hole 203 of the removal nozzle 200.

(Good product chute)
A non-defective chute 6 is provided at the end of the conveyor section 30 together with the foreign substance removing section 50. When the granular material on the conveyor unit 30 reaches the end portion, it falls into the non-defective chute 6 by its own weight, and passes through the non-defective chute 6 and is collected. Since the foreign matter mixed into the granular material is sucked and removed by the foreign matter removing section 50, no foreign matter is mixed into the granular material passing through the non-defective chute 6.
As shown in FIG. 2, the non-defective chute 6 can be fixed by a mounting bolt 6a having a knurled head, and can be easily attached and detached without using a tool. Therefore, the non-defective chute 6 that is a contact portion can be washed in a circle.

(Dehumidifier)
As shown in FIG. 1, a dehumidifying device 8 is provided on the top surface 2c of the upper housing 2 of the granular material inspection processing apparatus system 1 via a dehumidifying pipe 8a. As the dehumidifying device 8, it is possible to adopt a chemical adsorption type in which moisture is absorbed by an adsorbing substance such as silica gel, or a cooling system in which moisture in the air is liquefied and dehumidified by cooling.
By using this dehumidifying device 8, after washing the powder inspection processing device main body 1 </ b> A from which the parts having the contact parts are removed, the powder inspection processing device main body 1 </ b> A can be dried at high speed, The particulate inspection processing system 1 can be reused immediately. In addition, it is possible to reliably dry portions where water is difficult to escape, such as a fitting portion between components.
When the dehumidifying device 8 is operated, it is preferable that the upper housing door (not shown) is closed and the inside of the upper housing 2 to be dried is sealed as much as possible.

<Washing after removing the contact parts>
As described above, the part having the contact part of the granular material inspection processing system 1 according to the present embodiment including the modified example can be easily attached and detached without using a tool, and the member having the contact part. Can be washed completely.
Next, the cleaning of the granular material inspection processing apparatus main body 1A from which the part having the contact portion is removed will be described. Since the conventional granular material inspection processing apparatus main body 1A was not waterproofed, the conventional granular particle inspection processing apparatus could not wash them. However, when a fine powder (powder body) is a target for inspection processing, the powder body may rise and adhere to other parts than the powder contact part. Therefore, it is preferable that these can be washed.

A granular material inspection processing apparatus main body 1A from which a part having a contact portion is removed includes a granular material supply apparatus 10 (supply means), a vibration feeder 20, a conveyor section 30 (conveyance means), and an imaging section 80 (foreign matter detection means). And a drive control means for controlling the drive of the foreign matter removing unit 50 (foreign matter removing means).
The drive control means of the granular material supply device 10 is a roller drive device 10A, and the roller drive device 10A is covered with a cover partition wall 10B. The cover partition wall 10B is waterproofly sealed to the outside. With this waterproof seal, water is not applied to the roller driving device 10A even if water is sprayed on the granular material inspection processing apparatus main body 1A.
The drive control means of the vibration feeder 20 is the vibration part 21, and the vibration part 21 can be washed by adopting a vibration part 21 having a waterproof structure as already described in the upper part. That the vibration part 21 is provided with a waterproof structure means that it is waterproof and sealed to the outside.

Drive control means for driving and controlling the conveyor unit 30, the imaging unit 80, and the foreign matter removing unit 50 is provided in the electrical machine room 9. The electric machine room 9 is covered with a cover partition wall 9A, and the cover partition wall 9A is waterproof and sealed to the outside.
Further, the welding of the installation surface 2b of the upper housing 2 and the cover partition wall 9A covering the electric machine room 9 is performed by wire welding (not spot welding) and is hermetically joined. Water does not enter from between the surfaces 2b.
As described above, in the granular material inspection processing apparatus main body 1A, the granular material supply device 10 (supplying unit), the vibration feeder 20, the conveyor unit 30 (conveying unit), the imaging unit 80 (foreign material detecting unit), and the foreign material removing unit. The drive control means for driving and controlling 50 (foreign matter removing means) is covered with a waterproof sealed cover partition wall (the waterproof structure of the cover partition wall 9A, the cover partition wall 10B, and the vibration feeder 20). Therefore, when water is sprayed on the granular material inspection processing apparatus main body 1A and water is washed, water does not enter these drive control means, and generation of rust and electrical circuit short-circuit can be suppressed.

The granular material inspection processing apparatus main body 1A according to the present embodiment has a structure in which water hardly remains after washing with watering.
In the upper housing 2, the installation surface 2 b on which each device is installed is configured to incline toward the front side, for example, and is configured such that water used for cleaning flows down from the front side.
Conventionally, the upper casing door (not shown) provided in the upper casing 2 has been a gull wing type that opens and closes on the top surface 2c side of the upper casing 2, but the structure of the opening / closing mechanism is complicated. There is concern that it is difficult to drain water. Therefore, it is preferable to employ a device that opens to the left and right by a hinge.

<Waterproof cover for suction port>
(Suction port)
The dust suction nozzles 7 and 7 provided on the conveyor unit 30 for sucking dust adhering to the outer peripheral surface and the inner peripheral surface of the endless belt 38 are removed from the suction port 7A provided in the electric machine room 9 and washed with a circle. can do. The suction port 7A from which the dust suction nozzle 7 is removed is open to the outside, and the inside and outside of the electrical machine room 9 are communicated with each other. Therefore, if water is sprayed onto the granular material inspection processing apparatus main body 1A with the dust suction nozzle 7 removed, water enters the inside of the electrical machine room 9 through the suction port 7A.

  Similarly, on the side wall of the lower housing 3, a suction port 55 connected via a suction hose 54 and a removal nozzle 56 that removes foreign matters mixed in the granular material placed on the conveyor unit 30 is provided. Also in the suction port 55 for sucking out the foreign matter, when the removal nozzle 56 and the suction hose 54 are removed, the suction port 55 is opened to the outside. Water will infiltrate inside.

The granular material inspection processing apparatus system 1 according to the present embodiment removes a part having a contact portion and cleans the granular inspection apparatus main body 1A, and covers the suction ports 7A and 55 in a watertight manner. 118.
FIG. 6A shows a cross-sectional view of the waterproof cover 116 attached to the suction port 7A. The suction port 7 </ b> A is formed with a cylindrical portion 7 d protruding from the cover partition wall 9 </ b> A of the electrical machine room 9. The cylindrical portion 7d extends to the inside of the electrical machine room 9, and is connected to the suction device inside the cylindrical portion 7d. The outer peripheral surface 7e of the cylindrical portion 7d is joined to the cover partition wall 9A of the electrical machine room 9 in a watertight manner (for example, by welding joining or bolt fixing via packing). In FIGS. 6A and 6B, the cover partition wall 9A and the cylindrical portion 7d are shown as an integral unit.

  A flange portion 7g is provided at the tip of the cylindrical portion 7d, and a ferrule joint can be configured with an O-ring attached to a groove provided in the flange portion 7g. The waterproof cover 116 of the present embodiment can use an end cap used for a general ferrule, and a packing 7c is attached between the flange portion 7g provided at the tip of the cylindrical portion 7d and the waterproof cover 116, The clamp band 7b can cover and close the opening 7h of the suction port 7A in an airtight manner. The packing 7c and the clamp band 7b used when attaching the waterproof cover 116 may be used after cleaning the one used when attaching the dust suction nozzle 7 to the suction port 7A.

FIG. 6B shows a cross-sectional view of the suction port 7A when a waterproof cover 118 which is a modification of the above-described waterproof cover 116 is attached.
The waterproof cover 118 includes a columnar shaft portion 118a formed slightly smaller than the inner diameter of the cylindrical portion 7d of the suction port 7A, and a head portion 118b formed larger than the shaft portion 118a. A groove 118c in which the O-ring 117 is received is provided on the peripheral surface of the shaft portion 118a. When this waterproof cover 118 is attached to the suction port 7A, the O-ring 117 can prevent a gap between the inner peripheral surface 7f of the suction port 7A and the shaft portion 118a, and airtightly close the opening 7h of the suction port 7A.
Since the waterproof cover 118 of the modification is completed by simply being inserted into the suction port 7A, the burden on the operator can be reduced as compared with the waterproof cover 116 described above.

Further, since the waterproof cover 118 of the modified example is waterproof on the inner peripheral surface 7f of the cylindrical portion 7d in the suction port 7A, even when the suction port 7A does not include the flange portion 7g for forming a ferrule joint. Can be applied.
As another modification, the outer peripheral surface 7e of the cylindrical portion 7d in the suction port 7A may be waterproofed using an O-ring.
The waterproof covers 116 and 118 that cover the suction port 7A to which the dust suction nozzle 7 is attached have been described based on FIGS. 6 (a) and 6 (b). These waterproof covers 116 and 118 can use the same structure also in the suction port 55 for removing foreign substances.

<Waterproof cover for water repellent part>
In the granular material inspection processing apparatus main body 1A from which the part having the powder contact part shown in FIG. 2 is removed, there is a water-repellent part that does not allow contact with water. As the water-repellent part, the CCD camera 81 of the image pickup part 80, the bearing part 19C (see FIG. 7B) of the roller rotating shaft 19 of the granular material supply device 10, and the first, second and second parts of the conveyor part 30 are used. The bearing part 32C (refer FIG.9 (b)) of 3 pulley shafts 31, 32, and 33 (rotating shaft) is mentioned. It is desirable to attach a waterproof cover to these water-dissipating parts, and in this state, clean the granular material inspection processing apparatus main body 1A.

(CCD camera)
If the CCD camera 81 is smeared with water, it may cause a failure. In addition, the CCD camera 81 is provided to detect foreign matter mixed in the granular material conveyed on the conveyor unit 30, and needs to be assembled to the granular material inspection processing apparatus main body 1A with high accuracy. Easy attachment / detachment is not possible.

The granular material inspection processing apparatus system 1 according to the present embodiment has a waterproof cover that covers the CCD camera 81 in a watertight manner when the part having a contact portion is removed and the granular particle inspection processing apparatus main body 1A is cleaned. Yes.
The shape of the waterproof cover is not particularly limited as long as the CCD camera 81 can be covered in a watertight manner. However, since the target portion covered with the waterproof cover cannot be cleaned, even in the round washing cleaning of the granular material inspection processing apparatus main body 1A, water is not applied and the dust is not removed. Cleaning is necessary. Therefore, it is preferable to minimize the target portion covered with the waterproof cover.

  Note that the light emitting portions of the upper illumination devices 82A and 82B and the lower illumination device 82C that constitute the imaging unit 80 together with the CCD camera 81 are covered with a waterproof sealed glass surface and a housing. Therefore, the upper illumination devices 82A and 82B and the lower illumination device 82C can be sprayed and washed away.

(Roller rotating shaft bearing)
The bearing portion 19C of the roller rotating shaft 19 (rotating shaft) of the powder and granular material supply device 10 is a water-repellent portion that preferably does not contact water. Therefore, it is preferable to attach the waterproof cover 112 and clean the granular material inspection processing apparatus main body 1A so that moisture does not enter the bearing portion 19C.
FIG. 7A shows a cross-sectional view of the waterproof cover 112 attached to the roller rotation shaft 19, and FIG. 7B shows a cross-sectional view of the roller rotation shaft 19.

The roller rotating shaft 19 is rotated in the vicinity of the fixed shaft 19B fixed to the cover partition wall 10B (see FIG. 2) of the roller driving device 10A, the rotating shaft 19A inserted through the fixed shaft 19B, and the tip of the fixed shaft 19B. It has a bearing portion 19C that rotatably holds the shaft 19A. The rotating shaft 19A is configured to rotate at a constant speed by the roller driving device 10A. A rotating body 19D that rotates integrally with the rotating shaft 19A is attached near the tip of the rotating shaft 19A, and the rotating body 19D is disposed so as to cover one side surface of the bearing portion 19C. Yes.
The rotating shaft 19A and the rotating body 19D are fixed so as to rotate coaxially by a keyway and a key member (both not shown).

  The rotating body 19 </ b> D is provided with a locking pin 19 </ b> E that protrudes in the same direction as the extending direction of the roller rotation shaft 19. The roller 12 shown in FIG. 2 is provided with a hole (not shown) corresponding to the locking pin 19E. By inserting the locking pin 19E into the hole and attaching the roller 12 to the roller rotating shaft 19, The roller 12 can be rotationally driven together with the rotating body 19D.

  The bearing portion 19C is a bearing in which rolling elements are interposed between the inner ring and the outer ring. When moisture enters the bearing portion 19C, the lubricating oil for smoothly driving the bearing portion 19C is lost, which may hinder the rotational motion of the rotary shaft 19A. Further, rust is generated in the bearing portion 19C, and there is a possibility that normal operation is not performed. In addition, if the moisture that has entered the bearing portion 19C passes through the bearing portion 19C and reaches the roller driving device 10A, the driving operation itself may be hindered.

Therefore, when removing the roller 12 and washing the granular material inspection processing apparatus main body 1A with water, it is preferable to attach the waterproof cover 112 formed in the cap shape shown in FIG.
The waterproof cover 112 includes a cover main body 110 and two O-rings 111A and 111B (water stop members) having different diameters. The cover body 110 has a cap-like circularly symmetric outer shape having a main hole 110c. A central hole 110b and a locking pin hole 110a are provided at the bottom 110d of the main hole 110c. The central hole 110b is formed to penetrate the center of the bottom portion 110d, and the locking pin hole 110a is formed at a position corresponding to the locking pin 19E of the roller rotating shaft 19.

The inner diameter of the main hole 110c is formed to be the same as or slightly larger than the outer diameter of the second outer diameter portion 19c of the fixed shaft 19B in the roller rotating shaft 19. A groove is provided at the end of the inner peripheral surface of the main hole 110c, and an O-ring 111A is fitted into the groove.
Similarly, the inner diameter of the central hole 110b is substantially the same as or slightly larger than the first outer diameter portion 19b of the rotary shaft 19A. A groove is provided at an end portion of the inner peripheral surface of the center hole 110b, and an O-ring 111B is fitted in the groove.

FIG. 8 is a cross-sectional view showing a state in which the waterproof cover 112 is attached to the tip of the roller rotation shaft 19. When moisture enters the bearing portion 19C of the roller rotating shaft 19, the intrusion path is the gap A1 between the fixed shaft 19B and the rotating body 19D and the gap A2 between the rotating shaft 19A and the rotating body 19D.
The waterproof cover 112 suppresses the intrusion of moisture from the second outer diameter portion 19c of the fixed shaft 19B by the O-ring 111A, and the intrusion of moisture from the first outer diameter portion 19b of the rotating shaft 19A by the O-ring 111B. Can be deterred (water stopped). Therefore, moisture does not enter the region surrounded by the O-rings 111A and 111B, and moisture does not reach the gaps A1 and A2.

(First, second and third pulley shaft bearings)
The bearing portions 32C of the first, second, and third pulley shafts 31, 32, and 33 of the conveyor portion 30 are preferably water-repellent portions that do not contact water. Therefore, it is preferable to attach the waterproof cover 115 and clean the granular material inspection processing apparatus main body 1A so that moisture does not enter the bearing portion 32C.
9A and 9B are a front view and a longitudinal sectional view of the second pulley shaft 32. FIG. Since the first pulley shaft 31 and the third pulley shaft 33 have the same structure as the second pulley shaft 32, they are represented here in the description of the second pulley shaft 32.

The second pulley shaft 32 includes a fixed shaft 32B fixed to the cover partition wall 9A (see FIG. 2) of the electrical machine room 9, a rotating shaft 32A that passes through the inside of the fixed shaft 32B, and the vicinity of the tip of the fixed shaft 32B. It has a bearing portion 32C (bearing) that rotatably holds the rotating shaft 32A.
The rotating shaft 32 </ b> A is configured to rotate at a constant speed by drive control means provided inside the electric machine room 9. In addition, a rotating body 32D that is connected to the rotating shaft 32A by a key groove and a key member (both not shown) and rotates integrally is attached near the tip of the rotating shaft 32A. The rotating body 32D is arranged so as to cover one side surface of the bearing portion 32C.

A convex portion 32b is formed on the surface of the rotating body 32D on the side where the second pulley 34B (see FIG. 2) is mounted. The second pulley 34B is formed with a concave portion obtained by inverting the convex portion 32b, and the rotating body 32D and the second pulley 34B can be synchronously rotated by fitting the convex portion 32b into the concave portion.
In the first pulley shaft 31 and the third pulley shaft 33, the rotary shaft 32A is rotatably connected without being connected to the drive control means. Therefore, in the state where the endless belt 38 is attached, the second pulley shaft 32 rotates following the drive rotation.

Since the bearing portion 32C is a bearing, if moisture enters, there is a possibility that the rotational motion may be hindered due to outflow of lubricating oil or generation of rust. In addition, if moisture that has entered the bearing portion 32C passes through the bearing portion 32C and enters the electric machine room 9, there is a risk of impeding drive control.
Therefore, when removing the second pulley 34B and washing the granular material inspection processing apparatus main body 1A with water, it is preferable to attach a waterproof cover 115 formed in a cap shape as shown in FIG.

  The waterproof cover 115 has a configuration similar to the waterproof cover 112 attached to the tip of the roller rotation shaft 19 described in the upper part. That is, the waterproof cover 115 includes a cover main body 113 and two O-rings 114A and 114B (water-stop members) having different diameters. The cover main body 113 has a cap-like circularly symmetric outer shape having a main hole 113c. doing. A central hole 113b is formed at the center of the bottom 113d of the main hole 113c.

  The inner diameter of the main hole 113c is formed to be the same as or slightly larger than the outer diameter of the second outer diameter portion 32c of the fixed shaft 32B in the second pulley shaft 32. A groove is provided at the end of the inner peripheral surface of the main hole 113c, and an O-ring 114A is fitted in the groove. Similarly, the inner diameter of the central hole 113b is formed to be substantially the same as or slightly larger than the first outer diameter portion 32d of the rotary shaft 32A. A groove is provided at an end portion of the inner peripheral surface of the central hole 113b, and an O-ring 114B is fitted into the groove.

As shown in FIG. 10, the intrusion paths when moisture enters the bearing portion 32C of the second pulley shaft 32 are the gap B1 between the fixed shaft 32B and the rotating body 32D and the gap B2 between the rotating shaft 32A and the rotating body 32D. .
The waterproof cover 115 suppresses the intrusion of moisture from the second outer diameter portion 32c of the fixed shaft 32B by the O-ring 114A, and the intrusion of moisture from the first outer diameter portion 32d of the rotating shaft 32A by the O-ring 114B. Can be deterred (water stopped). Therefore, moisture does not enter the region surrounded by the O-rings 114A and 114B, and moisture does not reach the gaps B1 and B2.

<Air supply inside the cover partition>
(First positive pressure chamber)
The first pulley shaft 31 (drive unit) of the present embodiment has a slide mechanism 124 and an air cylinder inside the electric machine chamber 9 so as to slide in the left-right direction together with the slide plate 37 provided on the front surface of the electric machine room 9. A tension applying mechanism 132 (drive control means) consisting of 130 is provided. Thereby, the endless belt 38 can be tensioned or loosened.
Since the slide plate 37 slides relative to the cover partition wall 9A that covers the electrical machine room 9, the slide plate 37 is attached to the cover partition wall 9A with a slight gap. Therefore, there is a possibility that dust that has risen in the granular material inspection processing step by the granular material inspection processing apparatus system 1 may enter the inside of the electrical machine room 9 through this gap. Further, when water is sprayed on the granular material inspection processing apparatus main body 1A from which the member having the contact portion is removed for cleaning, water may enter the electric machine room 9 from this gap.

Therefore, in the granular material inspection processing apparatus system 1 of the present embodiment, the first positive pressure chamber 120 is inside the cover partition wall 9A that covers the electrical machine room 9 and covers the gap between the cover partition wall 9A and the slide plate 37. Is provided. Air supply means 190 (waterproof means) is connected to the first positive pressure chamber 120, and the inside of the first positive pressure chamber 120 is set to a positive pressure by the air supply means 190, so that dust or water is discharged from the gap between the cover partition wall 9 </ b> A and the slide plate 37. Infiltration can be prevented.
11 (a) and 11 (b), the slide mechanism 124 for sliding the first pulley shaft 31 and the slide plate 37, the air cylinder 130, and the first positive pressure chamber 120 (powder particle inspection processing system 1). A rear view and a top view (viewed from the opposite side to the front side) are shown, and each part will be described in detail based on this. In addition, in FIG. 11 (a), (b), a part of 1st positive pressure chamber 120 was displayed as a cross section.

  A double-acting air cylinder 130 is attached to the inner side surface 9a of the cover partition wall 9A on the electric machine room 9 side via an attachment member 131. The air cylinder 130 includes a rod 129 extending in the horizontal direction along the cover partition wall 9 </ b> A, and to an air supply pipe (not shown) connected to the air supply ports 130 a and 130 a provided on the peripheral surface of the air cylinder 130. The rod 129 can be expanded and contracted by switching the air supply. A leading end 127 of a rod 129 extending from the air cylinder 130 is fixed to the slide table 125 of the slide mechanism 124 by a mounting bracket 128.

The slide mechanism 124 includes a slide table 125 and a pair of linear guides 124A and 124A to which the slide table 125 is attached. The linear guide 124A is configured by attaching two linear blocks 124b and 124b to one rail 124a.
The slide table 125 is fixed on a total of four linear blocks 124b. Both rails 124a constituting the linear guide 124A extend in the horizontal direction and are fixed to the inner side surface 9a of the cover partition wall 9A. The linear block 124b installed on the rail 124a can smoothly linearly move along the extending direction of the rail 124a. Therefore, when the rod 129 is expanded and contracted by the air cylinder 130, the slide table 125 fixed to the tip of the rod 129 performs a smooth horizontal motion in accordance with the operation of the rod 129.

  A fixed shaft 32B of the first pulley shaft 31 is fixed to the slide table 125, and a rotating shaft 32A is rotatably attached via a bearing (not shown). A slide plate 37 is fixed to the fixed shaft 32B. Therefore, the fixed shaft 32B, the slide plate 37, and the rotary shaft 32A also slide integrally to the left and right in accordance with the operation of the slide table 125.

  The cover partition wall 9A is provided with an insertion hole 9b through which the first pulley shaft 31 (fixed shaft 32B and rotating shaft 32A) is inserted. This insertion hole 9b is a long hole extending in the left-right direction slightly longer than the sliding stroke of the slide mechanism 124. Therefore, the cover partition 9 </ b> A does not hinder the horizontal operation of the first pulley shaft 31. The slide plate 37 slides in the left-right direction together with the first pulley shaft 31, but is formed so as to cover the insertion hole 9b provided in the cover partition wall 9A within the entire operation range.

  A first positive pressure chamber 120 is provided on the inner side surface 9a of the cover partition wall 9A. The first positive pressure chamber 120 has side walls 120c, 120d, 120g, a top wall 120h, and a bottom wall 120f, and covers the slide mechanism 124 together with the inner surface 9a of the cover partition wall 9A. Of the wall surfaces constituting the first positive pressure chamber 120, the side walls 120c, 120d, the top wall 120h, and the bottom wall 120f are fixed perpendicularly to the inner side surface 9a of the cover partition wall 9A, and the side wall 120g is connected to the cover partition wall 9A. It is arranged on a parallel plane.

  At the edges of the side walls 120c and 120d of the first positive pressure chamber 120 and the top wall 120h and the bottom wall 120f, mounting bent pieces 120b that are bent at right angles to the outside of the first positive pressure chamber 120 are provided. Yes. A packing 123 is interposed between the mounting bent piece 120b and the inner surface 9a of the cover partition wall 9A. The packing 123 is compressed and the four corners are fixed by mounting bolts 122. Thereby, between the attachment bending piece 120b of the 1st positive pressure chamber 120 and the inner surface 9a of the cover partition wall 9A can be airtightly closed.

  A rod insertion hole 120e having an inner diameter slightly larger than that of the rod 129 is provided on the side wall 120c of the first positive pressure chamber 120 on the air cylinder 130 side. An O-ring 121 is attached to the rod insertion hole 120e, and the rod 129 is inserted therethrough. Even if the rod 129 is expanded and contracted by the air cylinder 130 by the function of the O-ring 121, the rod 129 and the rod insertion hole 120e are kept airtight.

As described above, airtightness is maintained between the mounting bent piece 120b of the first positive pressure chamber 120 and the inner side surface 9a of the cover partition wall 9A, and between the rod insertion hole 120e and the rod 129. In addition, an air supply pipe (not shown) for operating the air cylinder 130 extends through the wall surface of the first positive pressure chamber 120 to the outside, but the portion that penetrates the first positive pressure chamber 120 Sealed and airtightness with the outside is maintained except for the gap between the cover partition wall 9A and the slide plate 37.
In addition, it is desirable to interpose a packing between the cover partition wall 9A and the slide plate 37 and further narrow the gap between them.

An air supply port 120 a to which an air supply means 190 is connected is provided on the side wall 120 d of the first positive pressure chamber 120 on the side opposite to the air cylinder 130. By supplying air from the air supply port 120a, the inside of the first positive pressure chamber 120 can be maintained at a positive pressure.
Thereby, in the slight gap between the cover partition wall 9 </ b> A and the slide plate 37, an air flow from the inside to the outside of the electrical machine room 9 is formed. Since this air flow is always formed from the inside to the outside, it is possible to suppress the dust that has risen in the particle inspection processing process by the particle inspection processing system 1 from entering the inside of the electrical machine room 9. it can.
Further, even when water is sprayed onto the granular material inspection processing apparatus main body 1A from which the member having the contact portion is removed, it is possible to prevent water from entering the inside of the electrical machine room 9. The pressure of the air supply means 190 can be adjusted, and when cleaning the granular material inspection processing apparatus main body 1A, the pressure of the first positive pressure chamber 120 is increased to increase the effect of preventing moisture intrusion. it can.

  In the present embodiment, the first positive pressure chamber 120 has been described as an integral unit in order to make its function easy to understand. However, in view of the mounting process of the air cylinder 130, the slide mechanism 124, and the first positive pressure chamber 120. A combination of a plurality of parts can be used.

(Second positive pressure chamber)
In the foreign substance removing unit 50 of the present embodiment and the foreign substance removing unit 150 of the modified example, the nozzle holding members 57 and 212 that hold the removal nozzles 56 and 200 have a structure that can be moved up and down.
Since the removal nozzles 56 and 200 are arranged with a slight gap between the endless belts 38, when the endless belt 38 and the second pulley 34B are removed for cleaning, the removal nozzles 56 and 200 are used by the operator. Obstruct the work. In addition, the endless belt 38 or the second pulley 34 </ b> B around which the endless belt 38 is wound may be an obstacle for removing the removal nozzles 56 and 200.
By raising the nozzle holding member 57, the ease of the operation | work which removes these components from the granular material test | inspection processing apparatus system 1 increases.

FIG. 12 shows a side view of the lifting mechanism 164 of the nozzle holding member 57 in the foreign matter removing unit 150 of the modification. Note that the foreign matter removing unit 50 can employ the same configuration as that of the elevating mechanism 164 shown in FIG.
As shown in FIG. 12, the nozzle holding member 212 extends in a horizontal direction protruding from the cover partition wall 9 </ b> A of the electrical machine room 9. The base of the nozzle holding member 212 is connected to the inside of the electrical machine room 9 via the mounting plate 152, the elevating slide plate 151, and the relay body 153 (drive unit). The cover partition wall 9A is provided with an insertion hole 9c extending in the vertical direction, and the relay body 153 is disposed inside the insertion hole 9c. When the elevating mechanism 164 performs the elevating operation, the relay body 153 moves up and down along the insertion hole 9c. At this time, the elevating slide plate 151 moves up and down together with the relay body 153, but is formed in a size that covers the insertion hole 9c in all stroke ranges. Therefore, the insertion hole 9 c is not exposed to the outside of the electrical machine room 9.

However, since the elevating slide plate 151 slides relative to the cover partition wall 9A that covers the electrical machine room 9, it is attached to the cover partition wall 9A with a slight gap. Therefore, dust generated from the granular fluid may enter the inside of the electric machine room 9 through this gap.
Further, when water is sprayed on the granular material inspection processing apparatus main body 1A from which the member having the contact portion is removed for cleaning, water may enter the electric machine room 9 from this gap.

  Therefore, the second positive pressure chamber 160 is provided inside the cover partition wall 9A, similarly to the first pulley shaft 31 and the slide mechanism 124 of the slide plate 37 described above. Air supply means 190 (waterproof means) is connected to the second positive pressure chamber 160, and dust or water is discharged from the gap between the cover partition wall 9 </ b> A and the lift slide plate 151 by making the inside positive pressure by the air supply means 190. Can be prevented from entering.

  A double-acting air cylinder 170 is attached to an inner side surface 9a which is a surface of the cover partition wall 9A on the electric machine room 9 side via an attachment member 171. The air cylinder 170 includes a rod 169 extending in the vertical direction along the cover partition wall 9A, and the rod 169 can be expanded and contracted. A tip 167 of a rod 169 extending from the air cylinder 170 is fixed to the slide table 165 by a mounting bracket 168.

  The slide table 165 is fixed on the linear block 164b, and the linear block 164b is installed on the rail 164a and can smoothly move linearly on the rail 164a. The rail 164a extends in the vertical direction and is fixed to the inner side surface 9a of the cover partition wall 9A. Therefore, when the rod 169 is expanded and contracted by the air cylinder 170, the slide table 165 fixed to the tip of the rod 169 performs a vertical motion smoothly with the operation of the rod 169. Further, a relay body 153 is fixed to the slide table 165, and the relay body 153 also moves vertically in accordance with the operation of the slide table 165.

A lower end stopper mechanism 174 is provided at the lower part of the elevating mechanism 164. The lower end stopper mechanism 174 is generally configured by a bolt base 172 provided with screw holes, a stopper bolt 173 screwed to the bolt base 172, and a contact bolt 166 fixed to the slide table 165.
The stopper bolt 173 and the contact bolt 166 are arranged with their heads facing each other. The stopper bolt 173 can adjust the height of its head by rotating a screw with respect to the bolt base 172.

The elevating mechanism 164 maintains the state where the heads of the stopper bolt 173 and the contact bolt 166 are in contact with each other, operates the particulate inspection processing system 1, and removes the foreign matter in the foreign matter removal unit 150. Therefore, by adjusting the height of the stopper bolt 173, the height of the nozzle holding member 212 when removing foreign matter and the height of the removal nozzle 200 fixed to the nozzle holding member 212 are freely adjusted. be able to.
The gap between the nozzle holding member 212 and the endless belt 38 is preferably set to an optimum distance according to the type of the granular material in terms of efficient foreign matter removal. By providing the lower end stopper mechanism 174 in the elevating mechanism 164, the distance between the nozzle holding member 212 and the endless belt 38 can be easily adjusted.

A second positive pressure chamber 160 is provided on the inner side surface 9a of the cover partition wall 9A. The second positive pressure chamber 160 has a top wall 160c, a bottom wall 160d, and a side wall 160g, and covers the lifting mechanism 164 together with the inner side surface 9a of the cover partition wall 9A.
At the edge of the second positive pressure chamber 160 in the fixing portion to the cover partition wall 9A, a mounting bent piece 160b that is bent at right angles to the outside of the second positive pressure chamber 160 is provided. A packing 163 is interposed between the mounting bent piece 160b and the inner side surface 9a of the cover partition wall 9A. The packing 163 is compressed and the four corners are fixed by mounting bolts 162. Thereby, the space between the mounting bent piece 160b of the second positive pressure chamber 160 and the inner side surface 9a of the cover partition wall 9A can be hermetically closed.

As described above, the airtightness is maintained between the mounting bent piece 160b of the second positive pressure chamber 160 and the inner surface 9a of the cover partition wall 9A. In addition, an air supply pipe (not shown) connected to the air cylinder 170 for operating the air cylinder 170 extends through the wall surface of the second positive pressure chamber 160 to the outside. A portion that penetrates the pressure chamber 160 is sealed, and airtightness with the outside is maintained except for a gap between the cover partition wall 9A and the lifting slide plate 151.
In addition, it is desirable to insert packing between the cover partition wall 9A and the lifting slide plate 151, and further narrow the gap between them.

The bottom wall 160 d of the second positive pressure chamber 160 is provided with an air supply port 160 a to which the air supply unit 190 is connected. By supplying air from the air supply port 160a, the inside of the second positive pressure chamber 160 can be maintained at a positive pressure.
As a result, an air flow from the inside to the outside of the electrical machine room 9 is formed in a slight gap between the cover partition wall 9 </ b> A and the lifting slide plate 151. Since this air flow is always formed from the inside to the outside, it is possible to suppress the dust that has risen in the particle inspection processing process by the particle inspection processing system 1 from entering the inside of the electrical machine room 9. it can.
Moreover, even when water is sprayed onto the granular material inspection processing apparatus main body 1A from which the member having the powder part is removed, it is possible to suppress water from entering the inside of the electrical machine room 9.
When the pressure of the air supply means 190 can be adjusted and the granular material inspection processing apparatus main body 1A is cleaned, the pressure of the second positive pressure chamber 160 is increased to increase the effect of preventing moisture intrusion. it can.

  In the present embodiment, the second positive pressure chamber 160 has been described as an integral unit in order to make its function easy to understand. However, in view of the mounting process of the elevating mechanism 164, the second positive pressure chamber 160 is configured by combining a plurality of components. Can be used.

(Third positive pressure chamber)
As shown in FIG. 5, a plurality of air inlets 210 b provided on the side surface 210 c of the collecting pipe 210 are provided in a portion of the cover partition wall 9 </ b> A that covers the electrical machine room 9 and that faces the collecting pipe 210 of the foreign substance removing unit 150. A closing plate 220 that can be closed is installed. Further, an opening / closing mechanism 230 for moving the closing plate 220 close to and away from the side surface 210c of the collecting pipe 210 is provided inside the electric machine room 9, and the collecting pipe is operated by operating the opening / closing mechanism 230. The air inlet 210b of 210 can be opened and closed.

  The cover partition wall 9A is provided with a stepped insertion hole 9d. A bush holder 237 that is airtightly fixed via a packing 238 is disposed in the insertion hole 9d, and the bush holder 237 holds a pair of linear bushes 231 and 231. Further, the closing plate 220 is bolted to a pair of horizontal shafts 236 and 236 (driving units). The horizontal shaft 236 is inserted through the bush holder 237 from the surface of the closing plate 220 to form the cover partition wall 9A. It extends horizontally inward. Inside the cover partition wall 9 </ b> A, that is, inside the electric machine room 9, the pair of horizontal shafts 236 is connected to a rod 234 extending in the horizontal direction from the double-acting air cylinder 233 via a shaft connecting member 235.

  The air cylinder 233 is fixed to and held by a pair of support columns 232 and 232 that are fixed to the inner side surface 9a of the cover partition wall 9A and project horizontally from the inner side surface. Further, the air cylinder 233 can expand and contract the rod 234 by air pressure. That is, by operating the air cylinder 233, the closing plate 220 can be horizontally moved from the cover partition wall 9A toward the side surface 210c of the collecting pipe 210 via the rod 234 and the pair of horizontal shafts 236 and 236.

A packing 238 is provided between the bush holder 237 and the cover partition wall 9A to maintain airtightness. However, since the horizontal shaft 236 and the linear bush 231 perform relative motion, a slight gap is formed to communicate the inside and outside of the electrical machine room 9.
Therefore, dust generated from the granular fluid may enter the inside of the electric machine room 9 through this gap. Further, when water is sprayed on the granular material inspection processing apparatus main body 1A from which the member having the contact portion is removed for cleaning, water may enter the electric machine room 9 from this gap.
Therefore, a third positive pressure chamber 180 is provided inside the cover partition wall 9A. Air supply means 190 (waterproof means) is connected to the third positive pressure chamber 180, and the inside of the third positive pressure chamber 180 is set to a positive pressure by the air supply means 190, so that dust or water is discharged from the gap between the cover partition wall 9 </ b> A and the lifting slide plate 151. Can be prevented from entering.

  A third positive pressure chamber 180 is provided on the inner side surface 9a of the cover partition wall 9A. The third positive pressure chamber 180 has a top wall 180c, a bottom wall 180d, and a side wall 180g, and covers the opening / closing mechanism 230 together with the inner surface 9a of the cover partition wall 9A. The third positive pressure chamber 180 is attached to the cover partition wall 9A by attaching a packing 183 to a mounting bent piece 180b provided at the edge and compressing the packing 183 with a mounting bolt 182. Thereby, the space between the mounting bent piece 180b of the third positive pressure chamber 180 and the inner side surface 9a of the cover partition wall 9A can be hermetically closed.

  As described above, the airtightness is maintained between the mounting bent piece 180b of the third positive pressure chamber 180 and the inner surface 9a of the cover partition wall 9A. In addition, an air supply pipe (not shown) connected to the air cylinder 233 for operating the air cylinder 233 extends through the wall surface of the third positive pressure chamber 180 to the outside. The portion passing through the three positive pressure chambers 180 is sealed, and the airtightness with the outside is maintained except for the gap between the horizontal shaft 236 and the linear bush 231.

The bottom wall 180 d of the third positive pressure chamber 180 is provided with an air supply port 180 a to which the air supply unit 190 is connected. By supplying air from the air supply port 180a, the inside of the third positive pressure chamber 180 can be maintained at a positive pressure.
Thereby, in the slight gap between the horizontal shaft 236 and the linear bushing 231, an air flow from the inner side to the outer side of the electrical machine room 9 is formed. Since this air flow is always formed from the inside to the outside, it is possible to suppress the dust that has risen in the particle inspection processing process by the particle inspection processing system 1 from entering the inside of the electrical machine room 9. it can.
Moreover, even when water is sprayed onto the granular material inspection processing apparatus main body 1A from which the member having the powder part is removed, it is possible to suppress water from entering the inside of the electrical machine room 9.
The pressure of the air supply means 190 can be adjusted, and when cleaning the granular material inspection processing apparatus main body 1A, the pressure of the third positive pressure chamber 180 is increased to increase the effect of preventing moisture intrusion. it can.

  In the present embodiment, the third positive pressure chamber 180 has been described as an integral unit in order to make its function easy to understand. However, in view of the mounting process of the opening / closing mechanism 230, the third positive pressure chamber 180 is configured by combining a plurality of components. Can be used.

<< Second Embodiment >>
FIG. 13A shows a cross section of the first pulley shaft 31 and the slide plate 137 (covering plate) in a state where tension is applied to the endless belt 38 in the granular material inspection processing apparatus system according to the second embodiment of the present invention. The figure is shown. FIG. 13A corresponds to FIG. 11B used for describing the first embodiment.
13B and 13C are a sectional view and a front view of the first pulley shaft 31 and the slide plate 137 in a state where the tension is loosened and the endless belt 38 is removed.
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. 13 (a), (b), and (c). In addition, about the component of the same aspect as the above-mentioned 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

Compared with the first embodiment, the granular material inspection processing apparatus system according to the second embodiment has moisture in the gap between the cover partition wall 9A and the slide plate 137 when water is sprayed and washed on the granular material inspection processing apparatus main body 1A. The structure for suppressing intrusion is different.
In the first embodiment, the slide mechanism 124 for sliding the slide plate 37 and the first pulley shaft 31 to the left and right is covered by the first positive pressure chamber 120, and the inside of the first positive pressure chamber 120 is set to the positive pressure. By doing so, the structure which suppresses the penetration | invasion of the water from the clearance gap between the cover partition 9A and the slide board 37 is provided.
In the second embodiment, a packing 139 is interposed between the slide plate 137 and the outer surface 9e of the cover partition wall 9A, and the packing 139 is compressed and fixed, thereby suppressing the ingress of water. ing.

  As shown in FIG. 13A, a packing 139 is attached to the surface of the slide plate 137 on the cover partition wall 9A side. The packing 139 is formed in a frame shape along the outer periphery of the slide plate 137. The packing 139 may be fixed to the slide plate 137 with a structure in which the packing 139 is fitted in a groove provided on the surface of the slide plate 137, or may be attached with an adhesive or the like.

  The slide plate 137 is provided with a plurality of through holes 137a along the outer periphery. Further, the cover partition wall 9A is provided with the same number of screw holes 9f as the through holes 137a. The plurality of through holes 137a and the plurality of screw holes 9f correspond to each other and are arranged at positions shifted in the horizontal direction in the state shown in FIG.

  When the first pulley shaft 31 is slid to the second pulley shaft 32 (see FIG. 1) side, that is, in the right direction in FIG. 13, by the air cylinder 130 and the slide mechanism 124 (see FIGS. 11A and 11B), The wound endless belt 38 is loosened, and the endless belt 38 can be easily removed.

As shown in FIGS. 13B and 13C, when the first pulley shaft 31 is slid rightward, the slide plate 137 attached to the first pulley shaft 31 is also slid rightward, and the through hole 137a and the screw The positions of the holes 9f coincide. Here, when the fixing bolt 138 is screwed into the screw hole 9f through the through-hole 137a, the packing 139 interposed between the slide plate 137 and the outer surface 9e of the cover partition wall 9A is compressed, and the outside of the cover partition wall 9A is compressed. A gap between the side surface 9e and the slide plate 137 can be closed. Thus, the screw hole 9f, the through-hole 137a, and the fixing bolt 138 function as the pressing means 141 that presses the slide plate 137 (covering plate) against the cover partition wall 9A.
The sliding plate 137, the screw hole 9f, and the packing 139 constitute the waterproof means 140 that covers the insertion hole 9b, so that the intrusion of water from the insertion hole 9b can be suppressed. That is, water can be sprayed and washed on the granular material inspection processing apparatus main body.

  The structure shown as the second embodiment, in which the packing 139 is interposed between the slide plate 137 and the outer side surface 9e of the cover partition wall 9A and compressed to make the inside and outside of the cover partition wall 9A airtight, is the first structure. You may use it in combination with the structure provided with the 1st positive pressure chamber 120 of embodiment, In this case, the penetration | invasion of a water | moisture content can be suppressed more reliably.

After cleaning the granular material inspection processing apparatus main body 1A, the fixing bolt 8A is removed, the endless belt 38 is wound, and the air cylinder 130 and the slide mechanism 124 are operated to operate the slide plate 137 and the first pulley shaft. The inspection process can be performed again by sliding 31 to the left and applying a tension to the endless belt.
At this time, it is preferable to cap the through hole 137a of the slide plate 137 so that dust does not accumulate on the inner peripheral surface of the through hole 137a.

  Although various embodiments of the present invention have been described above, each configuration in each embodiment and combinations thereof are examples, and addition, omission, replacement, and configuration of configurations are within the scope not departing from the spirit of the present invention. And other changes are possible. Further, the present invention is not limited by the embodiments, and is limited only by the scope of the claims.

DESCRIPTION OF SYMBOLS 1 ... Granule inspection processing apparatus system 1A ... Granule inspection processing apparatus main body 2 ... Upper housing | casing 3 ... Lower housing | casing 7A, 55 ... Suction port (pipe opening)
DESCRIPTION OF SYMBOLS 8 ... Dehumidification apparatus 9 ... Electric machine room 9b, 9c, 9d ... Insertion hole 9A, 10B ... Cover partition 10 ... Granule supply apparatus (supply means)
10A ... Roller drive device 12 ... Roller 19 ... Roller rotation axis (rotation axis)
19C, 32C ... Bearing part (hydrophobic part)
19b, 32d ... 1st outer diameter part 19c, 32 ... 2nd outer diameter part 19c (outer diameter part)
20 ... Vibrating feeder 21 ... Vibrating part 30 ... Conveyor part (conveying means)
31 ... 1st pulley shaft (drive unit, rotating shaft)
32 ... Second pulley shaft (rotary shaft)
33 ... Third pulley shaft (rotary shaft)
34A ... 1st pulley 34B ... 2nd pulley 34C ... 3rd pulley 37 ... slide plate 38 ... endless belts 50, 150 ... foreign matter removing part (foreign matter removing means)
80 ... Imaging unit (foreign matter detection means)
81 ... CCD camera (anhydrous part)
111A, 111B ... O-ring (water stop member)
114A, 114B ... O-ring (water stop member)
112, 115, 116 ... waterproof cover 120 ... first positive pressure chambers 120a, 160a, 180a ... air supply port 124 ... slide mechanism 130, 170, 233 ... air cylinder 132 ... tension application mechanism (drive control means)
137 ... Slide plate (covering plate)
139 ... packing 140 ... waterproof means 141 ... pressing means 153 ... relay body (driving unit)
160: Second positive pressure chamber 164: Elevating mechanism (drive control means)
180 ... third positive pressure chamber 190 ... air supply means (waterproof means)
236 ... Horizontal shaft (drive unit)
230 ... Opening / closing mechanism (drive control means)

Claims (4)

It is a granular material inspection processing apparatus system that is detachably equipped with a powder contact portion that comes into contact with the granular material to be inspected,
The granular material inspection processing apparatus main body from which the powder contact part has been removed includes a water-repellent part,
Have a removable waterproof cover for covering the easy-portion in a watertight manner,
The particle inspection apparatus main body is
Drive control means covered by a cover partition;
A rotating shaft penetrating the cover partition,
The rotating shaft includes a fixed shaft fixed to the cover partition, a rotating shaft inserted through the inside of the fixed shaft, and a bearing as the water-repellent portion that rotatably holds the rotating shaft in the vicinity of the distal end of the fixed shaft. And
The waterproof cover includes a cover main body that is formed in a cap shape and covers a tip of the fixed shaft, and a water stop member that stops water between the cover main body and an outer diameter portion of the fixed shaft.
Powder inspection system.   The rotating shaft protrudes from a tip of the fixed shaft;
  A central hole through which the rotating shaft is inserted is provided at the bottom of the cover body,
  The waterproof cover further includes a water stop member that stops water between the central hole and the outer diameter portion of the rotating shaft.
The granular material inspection processing system according to claim 1.   At the tip of the rotating shaft, a female screw hole for attaching a roller for transferring the granular material is provided,
The granular material inspection processing apparatus system according to claim 2. It is a granular material inspection processing apparatus system as described in any one of Claims 1-3, Comprising: The dehumidification apparatus for drying the whole is provided, The granular material inspection processing apparatus system characterized by the above-mentioned.

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