JP2011206710A - Article inspection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for inspecting articles which displays a frequency integrated value of determination frequency of an inspection result in every sorting direction of articles and the sortting direction of articles side by side on a display part.SOLUTION: The apparatus for inspecting articles, which inspects articles conveyed in a conveyance direction and sorts articles in the predetermined sorting direction according to the inspection result, includes: an inspection part having a plurality of inspection means which inspect articles about a plurality of items to be inspected, and output the quality decision for every items to be inspected; a determining part which determines an inspection result based on a plurality of quality decisions for every articles, and outputs a sorting signal for sorting articles, which decides the predetermined sorting direction corresponding to the inspection result based on the sorting direction information in which the inspection result established beforehand which expresses at least a defective article among the inspection results and the sorting direction made to correspond, and which outputs a sorting signal sorting articles; and a display part 5 which displays a frequency integrated value C for every sorting direction decided by the determining part as the sorting direction side by side.

Description

  The present invention relates to an article inspection apparatus that inspects an article being conveyed in a conveyance direction for a plurality of inspection items and distributes the article in a predetermined distribution direction according to the inspection result, and an inspection item output from an inspection unit The present invention relates to an article inspection apparatus including a display unit that displays the number of times of distribution for each distribution direction determined by a determination unit from the pass / fail determination for each.

  An X-ray inspection unit, a weighing inspection unit, etc. are arranged along the conveyance path of the article. With these inspection units, a plurality of items such as shape and number of articles, packaging state, presence / absence of foreign matter, presence / absence of metal contamination, weight, etc. There is an article inspection apparatus for inspecting an article for the inspection items. Such an article inspection apparatus is an apparatus that includes a sorting unit including a sorting unit at the subsequent stage of the inspection unit, and distributes articles in a predetermined distribution direction according to the inspection result from the inspection unit. Moreover, the priority order is set in order to distribute articles | goods in the quality determination in a some inspection item. That is, an article inspected for a plurality of inspection items by the inspection unit is distributed in a distribution direction according to the inspection result, with the highest or lower priority determination as the inspection result of the article. The determination of the inspection result of the article and the determination of the distribution direction according to the inspection result are performed by a determination unit provided in the article inspection apparatus.

  For example, according to an example of an article inspection apparatus having metal detection, foreign object detection, and weight measurement as inspection items, an inspection result as shown in FIG. 9 can be obtained. In this example, the pass / fail judgment by metal detection is NG (metal NG) is the highest pass / fail judgment, the next pass / fail judgment by foreign object detection is NG (foreign matter NG), and then the pass / fail judgment by weight measurement. The determination is NG (light weight NG, excessive amount NG). For an article including a plurality of these NGs, NG having a higher priority is given priority and becomes an inspection result of the article. The above-described inspection results are all defective products. However, when the quality determinations by these inspection units are all OK, the inspection results are good, and this is the inspection result of the article.

  In the article inspection apparatus described above, the distribution direction is set according to the inspection result of the article. In each distribution direction, an NG box for storing articles corresponding to the NG assigned to each distribution direction is installed. For each type of NG, the article is discharged into the NG box as a defective product and selected. At the same time, the OK article is further conveyed as a non-defective product to a subsequent apparatus for selection.

  Further, the above-described article inspection apparatus and the like include a display unit for confirming the sorting state of articles. As shown in FIG. 10, the display unit 100 counts, for example, the total of items inspected on the display screen 101 by the inspection unit, non-defective products, defective products (light weight NG, excessive amount NG, foreign matter NG, metal NG) and the like. Etc. are displayed.

  In addition, there exists a sorter disclosed by the following patent document 1 as what is similar to the article inspection apparatus mentioned above. This sorting device is arranged along the transfer path of the object to be measured, and inspects a plurality of inspection devices for selecting the object to be measured according to a predetermined sorting standard and the object to be measured transferred from the inspection device. It consists of a sorting device that sorts based on the sorting results of the devices. In this sorting apparatus, the sorting direction and priority for each sorting standard can be arbitrarily changed.

JP-A-8-39011

  However, conventionally, as shown in FIG. 10, it is common to display all the pass / fail judgments on a plurality of inspection items by the inspection unit on the display unit 100. Accordingly, all NGs are counted for an article including a plurality of NGs, and the total of various NGs obtained by subtracting non-defective products from the total of the inspected articles does not match, and the display is difficult for the user to understand. It was. Further, the display contents as shown in FIG. 10 do not know how many articles are discharged into the NG boxes installed in the respective distribution directions, which is also inconvenient for the user.

  Therefore, the present invention has been made in view of the above situation, and when the display unit displays the integrated value of the number of determinations of the inspection result for each distribution direction side by side with the distribution direction and looks at the display unit, the user can An object of the present invention is to provide an article inspection apparatus that can accurately grasp the quantity of articles in each distribution direction.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The article inspection apparatus according to claim 1 of the present invention inspects an article W being conveyed in the conveyance direction Y, and distributes the article W in a predetermined distribution direction D0, D1, D2 according to the inspection result J. In the inspection apparatus 1,
An inspection unit 2 (2a, 2b) having a plurality of inspection means for inspecting the article W for a plurality of inspection items and outputting a pass / fail judgment K for each of the inspection items;
The inspection result J is determined for each article W based on the plurality of pass / fail determinations K, and at least the inspection results representing defective products among the inspection results J are associated with the distribution directions D0, D1, and D2. A determination unit 3 that determines the predetermined distribution direction corresponding to the inspection result based on distribution direction information set in advance and outputs a distribution signal for distributing the articles W;
A display unit 5 for displaying the accumulated number of times C for each distribution direction determined by the determination unit side by side with the distribution directions D0, D1, and D2.
It is characterized by having.

  The article inspection apparatus according to claim 2, wherein the distribution direction information is associated with an inspection result representing the defective product with a smaller number of types of distribution directions than the number of types of the inspection items. Yes.

  The article inspection apparatus according to a third aspect is characterized in that the display unit 5 includes an operation unit 7 for switching the distribution directions D0, D1, and D2 for displaying the cumulative number of times C.

  The article inspection apparatus according to claim 4 is characterized in that the display unit 5 displays the number of determinations of each pass / fail determination K determined for the inspection item.

  The article inspection apparatus according to claim 5 is characterized in that the display unit 5 displays the number of determinations of each pass / fail determination K of the inspection items corresponding to the distribution directions D0, D1, and D2.

  The article inspection apparatus according to claim 6, wherein the display unit 5 subtracts the determination number JC of the inspection result representing the defective product corresponding to the inspection item from the determination number of the pass / fail determination K corresponding to the inspection item. The subtraction value is displayed.

  The article inspection apparatus according to claim 7, wherein the display unit 5 has the distribution directions D0, D1, D1 based on the distribution timings TD0, TD1, TD2 at which the articles W are distributed to the distribution directions D0, D1, D2. The number-of-times integrated value C corresponding to D2 is updated.

  According to the article inspection apparatus according to the first aspect of the present invention, when the display unit is viewed, the user can accurately grasp the quantity of articles in each distribution direction. Specifically, for example, when an NG box for accommodating defective products or the like is installed for each distribution direction, the quantity of articles in the NG box can be grasped.

  According to the article inspection apparatus according to claim 2, even when various kinds of pass / fail judgments are output, it is possible to reduce the distribution space by reducing the distribution direction of defective products, and one distribution direction Even if a plurality of inspection results are associated with each other, the quantity of articles for each inspection result in the distribution direction can be grasped.

  According to the article inspection apparatus of the third aspect, the display unit can display only a desired distribution direction by switching the screen by operating the operation unit.

  According to the article inspection apparatus of the fourth aspect, the display unit can display the determination number of the pass / fail determination in the plurality of inspection items of the article regardless of the inspection result of the article.

  According to the article inspection apparatus of the fifth aspect, the display unit can display the breakdown of each pass / fail judgment of the plurality of inspection items that determine the distribution direction of the distributed articles.

  According to the article inspection apparatus of the sixth aspect, the display unit can display how many times the inspection item that has not been prioritized for each distribution direction has been judged to be acceptable.

  According to the article inspection apparatus of the seventh aspect, the display unit can display the number of times integrated value (number of times of sorting) for each sorting direction in accordance with the timing at which the articles are actually sorted.

It is a top view which shows one Embodiment of the goods inspection apparatus by this invention. It is a functional block diagram which shows the principal part of the embodiment. It is a timing chart which shows the display timing of the display part of the embodiment. (A) It is a figure which shows the other example of the display screen of the display part. (B) It is a figure which shows another example of (a). (A) It is a figure which shows the other example of the display screen of the display part. (B) It is a figure which shows another example of (a). (A) It is a figure which shows the other example of the display screen of the display part. (B) It is a figure which shows another example of (a). (A) It is a figure which shows the other example of the display screen of the display part. (B) It is a figure which shows another example of (a). It is a timing chart which shows the display timing of the display part in the other structural example of the article inspection apparatus by this invention. It is a figure which shows an example of the test result in a some test | inspection item. It is a figure which shows the display content of the conventional display part (display screen).

Embodiments of the present invention will be specifically described below with reference to the drawings.
As shown in FIG. 1, the article inspection apparatus 1 according to this embodiment inspects an article W being conveyed on a conveyance path by an inspection unit 2, and by a sorting unit 8 according to an inspection result by the inspection unit 2. It is an apparatus that distributes articles W in a predetermined distribution direction D.

  As shown in FIGS. 1 and 2, the article inspection apparatus 1 inspects an article W for a plurality of inspection items and outputs a quality determination for each inspection item, and a plurality of quality items output from the inspection unit 2. A determination unit 3 that determines an inspection result based on the determination, and a display unit 5 that displays the inspection result determined by the determination unit 3 and operation information of the article inspection apparatus 1 are provided.

  The inspection unit 2 includes a transport conveyor 4 that transports the articles W carried from the previous stage in a predetermined transport direction Y. In addition, the inspection unit 2 detects the fluctuation of the magnetic field due to the passage of the article W being transported by the transport conveyor 4 and inspects the presence or absence of metal in the article W, and is similarly transported by the transport conveyor 4. Based on the X-ray transmission image obtained by irradiating the article W with X-rays, it is determined whether or not the inspection items such as the shape and number of the article W, the packaging state, and the presence of foreign matter are in accordance with preset inspection conditions. X-ray inspection is performed, and similarly, a weighing inspection is performed to determine whether the weight of the article W is good or not based on a measurement value obtained by weighing the article W being conveyed by the conveyor 4.

  In other words, the inspection unit 2 has a plurality of inspection means for determining pass / fail for a plurality of inspection items for one article W. The inspection unit 2 of this example includes a metal inspection unit 2a, a shape inspection unit 2b, and a weighing inspection unit 2c. The metal inspection unit 2a detects a change in the magnetic field due to the passage of the article W in the inspection space in which the magnetic field is generated. And check for metal contamination. The shape inspection unit 2b inspects the quality of the shape of the article W such as a crack or a chip by extracting an article image obtained by binarizing the X-ray transmission image of the article W based on the pixel density. The weighing inspection means 2c calculates the measured value by removing a noise component superimposed by applying a known low-pass filter to the measured waveform of the article W generated by sequentially taking in the output from the weighing sensor (balance), The quality of the weight of the article W is inspected.

  In addition to the above-described inspection units 2a, 2b, and 2c, the inspection unit 2 emphasizes the density of the X-ray transmission image to inspect the presence or absence of a foreign object, and the X-ray transmission image based on the pixel density. Number inspection means for inspecting whether the number of articles W packaged in a bag or a box is a predetermined number from the binarized article image, and the article W leaks and bites into the sealed portion of the package It may be provided with a packaging inspection means for inspecting the quality of the packaging state such as whether it is not inserted, a conveyance inspection means for inspecting the conveyance state of the article W, and the like.

  Further, the inspection unit 2 performs various inspections on the articles W sequentially carried into the inspection unit 2 based on inspection parameters stored in a parameter storage unit (not shown).

  In addition to the display screen 6, the display unit 5 is provided with an operation unit 7 including an operation panel for inputting and setting various parameters, and allows various input operations by the user.

  Furthermore, the article inspection apparatus 1 includes a sorting unit 8. The sorting unit 8 is a transport conveyor 9 that transports the articles W transported from the inspection unit 2 in the transport direction Y, and an arm type for sorting the articles W in a direction different from the transport direction Y and discharging them out of the transport path. It consists of the distribution means 10. Further, first and second storage boxes (NG boxes) 11 (11a, 11b) from which the articles W are discharged are installed in the distribution directions D1, D2 set as distribution destinations by the distribution operation of the distribution means 10. ing.

From here, operation | movement of the test | inspection part 2 is demonstrated with reference to FIG.
As shown in FIG. 3, when an article W is carried into the inspection unit 2, it receives a carry-in detection signal output from the light projecting and receiving sensors 12 and 12 as carry-in detection means provided on the carry-in side of the conveyor 4. Each timer is started sequentially. When the timer reaches the first inspection execution timing, that is, the inspection start timing T1 of the metal inspection means 2a, a first inspection start signal is generated, and the second inspection execution timing, that is, the inspection start of the shape inspection means 2b is started. When the timing T2 is reached, a second inspection start signal is generated, and when the third inspection execution timing, that is, the inspection start timing T3 of the weighing inspection means 2c is reached, a third inspection start signal is generated. Even when the carry-in time pitch at which the article W is carried in is shorter than the inspection start timings T1, T2, T3, different timers are started for each carry-in detection signal corresponding to the articles W that are sequentially carried in. The resetting is not performed until the respective inspection start signals corresponding to the respective inspection means 2a, 2b, 2c are generated.

  Each inspection means 2a, 2b, 2c outputs each inspection result as pass / fail judgment for each article W carried in. At this time, for example, each pass / fail judgment of each inspection means 2a, 2b, 2c output from the inspection unit 2 such as “metal NG”, “shape NG”, “weight NG” for each article W carried in is , Input to the determination unit 3.

  The weighing inspection means 2c inspects whether the measured value of the article W is within a preset non-defective range or a non-defective allowable range outside the non-defective range based on the measured value of the article W. "Weight NG" when outside of the non-defective range, and "Weight NG" when out of the non-defective range, but "Light NG" if it is within the allowable range on the light side in the case of "Weight NG" If it is within the range, it may be possible to identify whether it is light or excessive as “overdose NG”. In this example, the inspection unit 2 (the weighing inspection unit 2c) performs this inspection. The non-defective product range may be further subdivided so that the weight rank can be substantially determined. In this case, the determination is made as “weight rank 1 OK”, “weight rank 2 NG”,.

  In the inspection unit 2 of this example, the metal inspection unit 2a and the shape inspection unit 2b for X-ray inspection are provided on the upstream side in the transport direction Y with respect to the measurement inspection unit 2c, and the time required for X-ray image processing is long. Even in such a case, the inspection capability is not lowered by using the time difference until the pass / fail judgment is output from the weighing inspection means 2c.

  The determination unit 3 sequentially accumulates each pass / fail judgment output from each inspection means 2a, 2b, 2c in a storage means (not shown) having a pass / fail judgment buffer. Then, as shown in FIG. 3, the inspection results are sequentially output at the timing when the quality determination for all the inspection items is completed for one article W.

  In the determination unit 3, a priority order is set for the pass / fail determination corresponding to each inspection item. In other words, when “NG” is determined in the pass / fail determination of a plurality of inspection items for one article W, the order of which defect of the inspection item is determined as the failure reason of the article W as the final inspection result. Is set. Specifically, when both “metal NG” and “weight NG” are determined for an article W, an initial value is set in advance so that “metal NG”, which is more serious as a hazard, is preferentially processed. Preferably it is.

  Regarding the inspection items related to weight, for example, “light weight NG” (light weight failure) and “overweight NG” (overweight failure) are not normally determined for one article W at the same time. As described above, the quality determinations that are mutually exclusive may be preferentially processed with the same priority as a weight defect, or “lightweight inspection” (“lightweight OK”, “lightweight NG”) and “overweight inspection” ( Like “overdose OK” and “overdose NG”), the priority relationship with other inspection items may be ranked as different inspection items.

  Further, the non-defective range of the weight inspection can be further subdivided to determine the weight rank. That is, the weight rank is inspected as to which weight rank the measurement value belongs to. At this time, for example, “weight rank 1 OK” and “weight rank 2 NG” are both determined, but this is not “weight rank 2” but only “weight rank 1”, and not a defective product. Are processed as “weight OK (weight rank 1)”.

  In this way, the determination unit 3 sets priorities for the respective pass / fail determinations for all inspection items. Needless to say, with respect to one article W, when all the inspection items are judged to be “OK”, the inspection result for the article W is “OK” (non-defective product).

  The determination unit 3 stores distribution direction information in which the distribution direction D (D0, D1, D2) by the subsequent distribution unit 10 is set for each inspection result determined by prioritizing each pass / fail determination. ing. In the example shown in FIGS. 1 and 3, for each inspection result, for example, “OK” is the distribution direction D0, “Weight NG (“ Lightweight NG ”,“ Overweight NG ”)” is the distribution direction D1, and “Shape NG”. “Metal NG” is set to be distributed in the distribution direction D2. Note that the user can appropriately set the distribution directions D1 and D2 of defective products.

  As described above, the determination unit 3 is based on the inspection result determined for each article W and the distribution direction information that sets which distribution direction D0, D1, and D2 to distribute the article W according to the inspection result. Then, a distribution direction corresponding to the inspection result is determined, and a distribution signal for distributing the articles W is output. In the distribution direction information, fewer distribution directions are associated with types of inspection results such as “OK”, “metal NG”, “shape NG”, and “weight NG”. Furthermore, the distribution direction information includes inspection results indicating defective products among inspection results, that is, inspections such as “metal NG”, “shape NG”, “weight NG (“ light weight NG ”,“ overweight NG ”)” and the like. There are fewer allocation directions (distribution directions D1, D2 in which defective products are allocated) than the types of results.

From here, with reference to FIGS. 4-7, the example of a display of each display screen 6a-6h of the display part 5 is demonstrated.
Based on the inspection result J determined by the determination unit 3 and the distribution direction information, the display unit 5 displays the count integrated value C counted in correspondence with each distribution direction D0, D1, D2, in the distribution directions D0, D1, and D2. Displayed side by side with D2. 4 to 7, the distribution direction D0 corresponds to the display item “non-defective”, and the distribution directions D1 and D2 correspond to the display items “first NG box” and “second NG box”, respectively. . Therefore, the display unit 5 displays the number-of-times integrated value C for each distribution direction D0, D1, and D2 of the article W in correspondence with “non-defective product”, “first NG box”, and “second NG box”. Moreover, the display example demonstrated below can be switched and displayed on each display screen 6a-6h by operation from the operation panel 7 mentioned above, such as a touch panel provided in the display screen 6, for example.

  First, a first display example (an example of the display screen 6a shown in FIG. 4A) will be described. The determination unit 3 determines one pass / fail determination as an inspection result J based on the priority of the pass / fail determination K for each inspection item. This determination is defined as Jn (n is an integer of 0 or more). In this example, J1, J2, J3, and J4 correspond to “lightweight NG”, “overweight NG”, “shape NG”, and “metal NG”, and the priority order at this time is J4> J3> J2> J1. It becomes. In addition, the determination when all the pass / fail determinations K for each inspection item are “OK” is J0 and is not associated with the priority order. The display unit 5 performs statistical processing according to Jn finally determined by the determination unit 3 from among these determinations, and displays the number of determinations JC when the inspection result J is defective (inspection result representing a defective product). indicate.

  As described above, the determination unit 3 determines the distribution direction D of the article W based on the inspection result representing the defective product of the article W and the distribution direction information. This determination is defined as Dm (m is an integer of 0 or more). In this case, the distribution directions are D0, D1, and D2. Note that the determination Jn and the distribution direction Dm described above are associated by parameters and are set by the determination unit 3.

  And the display part 5 displays the display content as shown to Fig.4 (a) on the display screen 6a. In this display screen 6a, the distribution directions D0, D1, D2 correspond to the display items “non-defective”, “first NG box”, “second NG box”, and the inspection results J1, J2, J3, J4 are This corresponds to the display items “lightweight NG”, “excess NG”, “shape NG”, and “metal NG” displayed on the right side of the screen 6a. The inspection result J0 corresponds to the display item “good”. In addition, on the right side of the display items “non-defective”, “first NG box”, and “second NG box”, the count integration value C for each of the distribution directions D0, D1, and D2 is displayed. Further, on the right side of the display items “lightweight NG”, “overweight NG”, “shape NG”, “metal NG”, all the determination times of “NG” of each pass / fail determination K determined for these inspection items Is displayed.

  Another example of this display example is shown in FIG. In this display screen 6b, the display items “lightweight NG”, “excess amount NG”, “shape NG”, and “metal NG” displayed on the right side of the screen 6b are all determined for “NG”. The number of determination times JC when the inspection result J is defective is added and displayed on the left side.

  Next, a second display example (examples of the display screens 6c and 6e shown in FIGS. 5A and 6A) will be described. The display screen 6 is switched from, for example, the display shown in FIG. 4 to the display shown in FIG. 5A by operating the operation panel 7 provided in the display unit 5. In this display example, the determination number JC when the inspection result J corresponding to the distribution directions D1 and D2 is defective is displayed. As shown in FIG. 5 (a), the quantity of articles W that have become the distribution direction D1, that is, the “first NG box” (the number integrated value C in the distribution direction D1), and the inspection in the distribution direction D1. The determination number JC when the inspection result J for each item is defective is displayed. From this display, the inspection result J is judged to be one item of “light NG” and two items of “overweight NG”, and three items W are discharged into the first NG box 11a as defective products. You can see that

  Further, the display screen 6 is switched from, for example, the display shown in FIG. 5A to the display shown in FIG. 6A by an operation from the operation panel 7 provided in the display unit 5. In this display example, as shown in FIG. 6 (a), the quantity of articles W that has become the distribution direction D2, that is, the “second NG box” (number of times integration value C in the distribution direction D2), The determination number JC when the inspection result J for each inspection item in the distribution direction D2 is defective is displayed. From this display, the inspection result J is determined to be 10 pieces of “shape NG” and 6 pieces of “metal NG”, and 10 items W are discharged into the second NG box 11b as defective products. You can see that Further, from the display examples as shown in FIG. 5A and FIG. 6A, the inspection result J in which the article W discharged into the first NG box 11a is discharged, It can be seen at a glance which inspection result J the article W discharged into the second NG box 11b is discharged.

  In the display examples shown in FIGS. 5A and 6A, in the case of the “first NG box”, only the inspection result J corresponding thereto, that is, the determination times JC of the determinations J1 and J2 are displayed. In the case of the “second NG box”, only the inspection result J corresponding thereto, that is, the determination number JC of the determinations J3 and J4 is displayed. JC may be displayed.

  FIGS. 5B and 6B show other examples of the display examples of FIGS. 5A and 6A, respectively. In the display examples (display screens 6d and 6f) shown in FIG. 5B and FIG. 5B, in addition to the determination number JC when the inspection result J in each distribution direction D1 and D2 is defective, for each inspection item The number of all “NG” determinations for each pass / fail determination K is displayed.

  Next, a third display example (an example of the display screen 6g shown in FIG. 7A) will be described. In order to realize this display example, the display unit 5 subtracts the determination number JC when the inspection result J corresponding to the inspection item is defective from the determination number “NG” of the pass / fail determination K corresponding to the inspection item. The subtracted value is displayed. Here, the “NG” determination of pass / fail determination K by each inspection means that has become another inspection result J by the inspection result J determined by the determination unit 3 is defined as Kp (p = n−1). In this example, the determinations K1, K2, and K3 correspond to “light weight NG”, “excess amount NG”, and “shape NG”, and “metal NG” having the highest priority is excluded. Note that the display example illustrated in FIG. 7A is switched from the display illustrated in FIG. 6B, for example, by an operation from the operation panel 7 of the display unit 5.

  In this display example, as shown in FIG. 7A, the number of articles W (the number of times integrated value C in the distribution direction D2) corresponding to the distribution direction D corresponding to the “second NG box” corresponds to the distribution direction D2. “NG” that did not result in the determination of the inspection result J to be performed, that is, the determination times of the pass / fail determinations K1, K2, and K3 that became the other inspection results J by the inspection result J determined by the determination unit 3 is displayed. To do. From this display, the priority result was not obtained because there were other “NG” with high priority among the ten articles W discharged into the second NG box 11b (not given priority). ) As “NG”, it can be seen that there are 4 “lightweight NG”, 6 “overweight NG” and 3 “shape NG”, and each of the plurality of inspection items ignored by the final inspection result J The number of determinations of “NG” for the pass / fail determination K can be displayed. Similarly, by operating the operation panel 7, the distribution direction for displaying the number of times integrated value C is switched from D2 to D1, and the other high in the articles W discharged into the first NG box 11a. It is possible to display how many times “NG” of the pass / fail judgment K of the inspection item not prioritized by “NG” of the priority order is present.

  FIG. 7B shows another example of the display example of FIG. In this display example (display screen 6h), in addition to the “NG” determination that was not prioritized among the “NG” of the pass / fail determination K for the inspection item, the number of determinations of “NG” for all pass / fail determinations for the inspection item. Is displayed.

Here, the count timing of the number-of-times integrated value C (number of times of distribution) for each of the distribution directions D0, D1, and D2 on the display unit 5 will be described.
As shown in FIG. 3, the number of times integrated value C for each of the distribution directions D0, D1, and D2 displayed on the display unit 5 is the distribution timing at which the articles W are actually distributed after the determination unit 3 outputs the inspection result J. The number of times integrated value C is counted up based on TD, and the number of times integrated value C is updated on the display unit 5. Thereby, for example, while the articles W distributed in the distribution direction D1 are being conveyed to the distribution unit 10, the corresponding number of times accumulated value C is not counted up, and reaches the distribution unit 10 to start the distribution operation. The number of times integrated value C is counted up at the time, and the number of articles W distributed in the distribution direction D1 always matches the corresponding number of times integrated value C.

  Therefore, even when an abnormality occurs in the article inspection apparatus 1 or when the conveyance conveyors 4 and 9 of the inspection line including the distribution unit 10 are stopped for some other reason, the distribution direction D1 displayed on the display unit 5 , D2 and the number of articles W that are actually distributed in the distribution directions D1 and D2 coincide with each other. In particular, when the articles W distributed in the distribution directions D1 and D2 are accommodated and managed in the plurality of NG boxes 11, the number of determinations when the number of actually distributed articles W and the inspection result J are defective are shown. This is convenient when collating with JC.

Here, the above-described distribution timing TD will be described.
The control unit (not shown) includes a distribution control unit that receives the distribution signal output from the determination unit 3 and operates the corresponding distribution unit 10.

  In the distribution control means, a distribution timing TD (TD1, TD2) for operating the distribution means 10 is set. As shown in FIG. 3, the distribution timings TD1 and TD2 are set based on the conveyance time from when the distribution signal is output until the distribution target article W is conveyed to the distribution position. FIG. 3 shows an example in which three articles W (W1, W2, W3) are respectively distributed in a predetermined distribution direction D (any one of D0, D1, D2).

  Thereby, for example, among the three articles W1, W2, and W3, the first and next articles W1 and W2 are distributed in the most downstream distribution direction D0, and the next article W3 after the article W2 is allocated in the upstream distribution direction D1. , D2, the article W3 inspected later than the timing at which the article W2 inspected prior to the article W3 reaches the distribution direction D0 is placed in the upstream distribution direction D1 (D2). Since the arrival timing is earlier, the order in which the articles W are carried in and the order in which the number of times integrated value C in each of the distribution directions D0 and D1 (D2) is counted up are reversed to approximate the actual distribution state. it can.

  Further, FIG. 8 shows the distribution direction D (D0, D1, D2, D3, D4) in another configuration example (article inspection apparatus 1 ′) described above with reference to FIGS. The display timing of the integrated value of the number of determinations of the inspection result is shown. Hereinafter, the display timing of the display unit in the article inspection apparatus 1 ′ of this example will be described. The article inspection apparatus 1 'includes a sorting unit 3 including two sorting units 10a and 10b, and sorting directions D0, D1, D2, D3, and D4 are set according to the sorting unit 3. Also in this example, as in the above-described example, the inspection unit 2 that inspects the article W for a plurality of inspection items and outputs a quality determination for each inspection item, and the plurality of quality determinations output from the inspection unit 2. And a display unit for displaying the inspection result determined by the determination unit and the operation information of the article inspection apparatus 1 ′.

  The inspection unit 2 includes an X-ray inspection unit 2a and a weighing inspection unit 2b. The X-ray inspection means 2a uses the X-ray transmission image obtained by irradiating the article W being conveyed by the conveyor 4 with the X-ray transmission image, the shape and number of the articles W, the packaging state, the presence / absence of foreign matter, etc. For the inspection item, pass / fail is determined according to the inspection conditions set in advance. Similarly, the weighing inspection means 2b determines whether the weight of the article W is good or not based on the measured value obtained by weighing the weight of the article W being conveyed by the conveyor 4.

  In the inspection unit 2 of this example, the X-ray inspection unit 2a performs pass / fail determination on three inspection items of shape inspection, foreign matter inspection, and metal inspection. In addition, the weighing inspection unit 2b performs pass / fail determination for three inspection items, that is, a light weight inspection, an overdose inspection, and a conveyance state inspection.

  In the shape inspection in the X-ray inspection means 2a, the quality of the shape of the article W such as a crack or a chip is inspected by extracting an article image obtained by binarizing the X-ray transmission image of the article W based on the pixel density. In the foreign matter inspection, a known image processing filter is applied to the X-ray transmission image of the article W to emphasize the density of the image, thereby checking the presence or absence of foreign matter. Furthermore, unlike the metal inspection in the above-described example, the metal inspection uses a plurality of foreign object detection algorithms for foreign object inspection to specify the type of foreign object (metal) and inspect for the presence of metal.

  The weighing inspection means 2b sequentially takes the output from the weighing sensor (balance), generates a weighing waveform of the article W, applies a known low-pass filter to the weighing waveform to remove the superimposed noise component, and obtains the weighing value. By calculating, the quality of the weight of the article W is inspected. In the light weight inspection in the weighing inspection means 2b, based on the measurement value of the article W, it is inspected whether it is within a preset non-defective range or a non-defective allowable range outside the non-defective range. Inspect whether the defect is within the allowable range. In addition to the light weight inspection, the overdose inspection checks whether or not the measured value of the article W is within the allowable range of defects on the overdose side. Furthermore, the conveyance state inspection inspects, for example, a delay in the delivery of the article W from the rising timing of the weighing waveform, and a fall of the article W from the fluctuation of the weighing waveform level.

  The inspection unit 2 performs various inspections on the articles W sequentially carried into the inspection unit 2 based on inspection parameters stored in a parameter storage unit (not shown).

  In addition to the display screen, the display unit is provided with an operation unit including an operation panel for inputting and setting various parameters, and allows various input operations by the user.

  Also in this example, similarly to the article inspection apparatus 1 described above, the determination unit includes the distribution directions D0, D1, D2, and the distribution directions by the distribution means 10a and 10b for each inspection result determined by prioritizing each pass / fail determination. The distribution direction information in which D3 and D4 are set is stored. In FIG. 8, “OK” is the distribution direction D0, “Lightweight NG” is the distribution direction D1, “Overload NG” is the distribution direction D2, “Shape NG” and “Transport state NG” are the distribution direction D3, “Foreign matter NG”. ”And“ Metal NG ”are set to be distributed in the distribution direction D4. The setting of the distribution directions D0, D1, D2, D3, and D4 is merely an example, and other settings may be used, and the user can appropriately set the combination of the distribution direction D and “NG”.

  In each distribution direction D0, D1, D2, D3, D4, first to fifth accommodation boxes 11 (11a to 11e) from which the articles W are discharged are installed.

From here, operation | movement of the test | inspection part 2 is demonstrated with reference to FIG.
As shown in FIG. 8, when an article W is carried into the inspection unit 2, it receives a carry-in detection signal output from the light projecting / receiving sensors 12 and 12 serving as carry-in detection means provided on the carry-in side of the conveyor 4. Each timer is started sequentially. When the timer reaches the first inspection execution timing, that is, the X-ray inspection start timing T1 of the X-ray inspection means 2a, a first inspection start signal (X-ray inspection start signal) is generated, and the second inspection execution timing is generated. That is, when the measurement inspection start timing T2 of the measurement inspection means 2b is reached, a second inspection start signal (measurement inspection start signal) is generated. Even when the carry-in time pitch at which the article W is carried in is shorter than the inspection start timings T1 and T2, a different timer is started for each carry-in detection signal corresponding to the article W that is sequentially carried in. The resetting is not performed until the respective inspection start signals corresponding to the respective inspection means 2a and 2b are generated.

  The X-ray inspection means 2a outputs each inspection result as first pass / fail judgments (a), (b), and (c) for each article W carried in. At this time, for example, a plurality of pass / fail judgments are output as a group such as “shape NG”, “foreign matter NG”, and “metal NG” for each article W to be carried in. Each pass / fail determination output from the X-ray inspection means 2a is input to the determination unit.

  The article W that has passed through the X-ray inspection means 2a is then carried into the weighing inspection means 2b. When receiving the weighing inspection start signal, the weighing inspection means 2b outputs the respective inspection results as second pass / fail judgments (a), (b), and (c) for each article W carried in. At this time, for example, for each article W carried in, a plurality of pass / fail judgments are output as a group, such as “lightweight NG”, “overload OK”, and “conveyance state OK”. Each pass / fail determination output from the weighing inspection means 2b is input to the determination unit.

  In this example, the X-ray inspection means 2a is provided on the upstream side in the transport direction Y with respect to the measurement inspection means 2b. Even when the time required for X-ray image processing becomes longer, the X-ray inspection means 2b The inspection capability is not lowered by using the time difference until the determination is output.

  The determination unit sequentially accumulates each pass / fail judgment output from each inspection means 2a, 2b in a storage means (not shown) having a pass / fail judgment buffer. Then, as shown in FIG. 8, the inspection results are sequentially output at the timing when the quality determination for all the inspection items is completed for one article W.

  Further, the determination unit distributes the articles W based on the distribution direction information in which the distribution directions D0, D1, D2, D3, and D4 are allocated according to the inspection result determined for the articles W. The distribution signal is output.

Here, the count timing of the number-of-times integrated value (number of times of distribution) for each distribution direction D0, D1, D2, D3, and D4 in the display unit will be described.
As shown in FIG. 8, the integrated value of the number of determinations of the inspection result for each of the distribution directions D0, D1, D2, D3, and D4 displayed on the display unit is actually the article after the determination unit outputs the inspection result. Counting up is performed at the distribution timing TD at which W is distributed, and the integrated number of times is updated on the display unit. Thereby, for example, while the articles W distributed in the distribution direction D1 are being conveyed to the distribution unit 10b, the corresponding number of times integrated value is not counted up, but reaches the distribution unit 10b and the distribution operation is started. The number of articles W distributed in the distribution direction D1 always matches the corresponding number of times integrated value.

  Therefore, as in the case of the article inspection apparatus 1 described above, when the abnormality occurs in the article inspection apparatus 1 ′, or for some other reason, the conveyance conveyor 4 or the conveyance conveyor 9 of the inspection line including the distribution means 10a and 10b is stopped. Even in this case, the accumulated number of times for each of the distribution directions D0, D1, D2, D3, and D4 displayed on the display unit, and the number of articles W that are actually distributed in the distribution directions D0, D1, D2, D3, and D4 Will match. In particular, when the articles W distributed in the respective distribution directions D0, D1, D2, D3, and D4 are stored and managed in the plurality of storage boxes 11, the number of actually distributed articles W and the number of inspection results are determined. This is convenient when collating

Here, the distribution timing TD will be described.
The control unit includes a distribution control unit that receives the distribution signal output from the determination unit and operates the corresponding distribution unit 10a or 10b.

  In the distribution control means, a distribution timing TD (TD1, TD2, TD3, TD4) for operating the distribution means 10a, 10b is set. As shown in FIG. 8, the distribution timings TD1, TD2, TD3, and TD4 are set based on the conveyance time from when the distribution signal is output until the distribution target article W is conveyed to the distribution position. . FIG. 8 shows an example in which three articles W (W1, W2, W3) are distributed in a predetermined distribution direction D (any one of D0, D1, D2, D3, and D4).

  Thereby, for example, among the three articles W1, W2, and W3, the first article W1 is sorted in the most downstream sorting direction D0, and the next article W2 is sorted in any of the downstream sorting directions D1 and D2. In this case, since the timing at which the later inspected article W2 reaches the upstream distribution direction D1 (D2) is earlier than the timing at which the previously inspected article W1 reaches the distribution direction D0. The order in which W is carried in and the order in which the integrated value of the number of times in each distribution direction D0, D1 (D2) is counted up are reversed, and can be approximated to an actual distribution state.

DESCRIPTION OF SYMBOLS 1 ... Goods inspection apparatus 2 ... Inspection part 3 ... Determination part 5 ... Display part 7 ... Operation part D ... Distribution direction W ... Goods Y ... Conveyance direction K ... Judgment judgment for every inspection item J ... Inspection result JC ... Represents inferior goods Number of determinations of inspection results C: Number of times of determination of inspection results

Claims (7)

In the article inspection apparatus (1) that inspects the article (W) being conveyed in the conveyance direction (Y) and distributes the article in a predetermined distribution direction (D) according to the inspection result (J).
An inspection section (2) having a plurality of inspection means for inspecting the article for a plurality of inspection items and outputting a pass / fail judgment (K) for each inspection item;
The inspection result is determined for each article based on the plurality of pass / fail determinations, and at least the inspection result indicating a defective product among the inspection results and the distribution direction are set in advance so as to correspond to each other. A determination unit (3) for determining the predetermined distribution direction corresponding to the inspection result and outputting a distribution signal for distributing the article;
A display unit (5) for displaying the count integrated value (C) for each distribution direction determined by the determination unit side by side with the distribution direction;
An article inspection apparatus comprising:   2. The article inspection apparatus according to claim 1, wherein in the distribution direction information, the number of types of distribution directions smaller than the number of types of the inspection items is associated with an inspection result representing the defective product.   The said inspection part (5) is provided with the operation part (7) which switches the said distribution direction (D) which displays the said frequency | count integrated value (C), The article inspection apparatus of Claim 2 characterized by the above-mentioned.   The article inspection apparatus according to claim 2 or 3, wherein the display unit (5) displays the number of times of each pass / fail determination (K) determined for the inspection item.   The said display part (5) displays the frequency | count of determination of each quality determination (K) of the said inspection item corresponding to the said distribution direction (D), Any one of Claim 2 thru | or 4 characterized by the above-mentioned. Goods inspection equipment.   The display unit (5) displays a subtraction value obtained by subtracting the number of determinations (JC) of the inspection result representing the defective product corresponding to the inspection item from the number of determinations of pass / fail determination (K) corresponding to the inspection item. The article inspection apparatus according to any one of claims 2 to 5, wherein:   The display unit (5) updates the number-of-times integrated value (C) corresponding to the distribution direction based on a distribution timing (TD) at which the article (W) is distributed to each distribution direction (D). The article inspection apparatus according to any one of claims 1 to 6.

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