JP2010094652A - Inspecting and sorting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection and sorting apparatus to conduct the inspection of an article to be conveyed and to conduct the sorting of the article based on the result of the inspection by an air jetting system, which eliminates a conveyor to sort the article and which adjusts the position of a nozzle to jet an compression air easily. <P>SOLUTION: The inspection and sorting apparatus 100 is provided with a sending part 3 equipped with a sending conveyor 3a to convey the article to be targeted by inspection to the downstream side in a predetermined distance, an inspection part 4 equipped with an inspection conveyor 4a to conduct the inspection while conveying the article conveyed by the sending part 3 to the downstream side and an sorting part 21 to sort the article conveyed in accordance with the result of the inspection in the inspection part 4, which is arranged at the downstream side of the inspection part 4. The sorting part 21 is provided with an article inspection sensor 22, an air nozzle 23 and a sorting confirmation sensor 24 as a unit that is able to integrally treat them in order from the upstream side, and is arranged so that the relative position of the conveying direction of each article becomes constant. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an inspection distribution apparatus that inspects a conveyed article and performs a predetermined distribution of the article based on an inspection result.

  2. Description of the Related Art Conventionally, production lines that produce articles such as packaged foods are equipped with various inspection devices for inspecting the quality of the articles. For example, a weight detector for inspecting the weight of an article, a metal detector or an X-ray inspection device for inspecting whether foreign matters are mixed in the article or packaging bag, a seal checker for inspecting the packaging state of the article, etc. It is arranged as an inspection device in various parts of the production line.

  Further, in many cases, a sorting device that distributes articles that have not passed the inspection to the outside of the production line is provided on the article conveyance downstream side of such an inspection apparatus. There are various types of sorting devices such as arm (flipper) type, air jet type, fin (chute) type, drop sorting arm (pusher) type, drop belt (single swing) type, all of which are regular articles. It has the function of sorting out defective products from the transport path (production line).

  For example, an inspection distribution apparatus (inspection apparatus with an article distribution function) described in Patent Document 1 performs an inspection of an article conveyed by a feeding section that regularly conveys an article to a subsequent stage. An inspection unit to perform and a distribution unit that distributes articles conveyed according to the inspection result in the inspection unit are provided. Each of the functional units of the feeding unit, the inspection unit, and the distribution unit has a conveyor that forms an article conveyance path, and each functional unit performs a predetermined operation while conveying the article by the conveyor. It is configured.

Patent Document 2 discloses an inspection device (weight sorter) provided with an air jet sorter. In the air jet type sorting apparatus, air is ejected from an air nozzle to rejected products, and rejected products are blown off and excluded from a regular article transport path. The air jet type sorting apparatus can perform sorting at high speed as compared with other sorting methods such as an arm type, and is suitable for sorting relatively light name products.
JP 2006-81973 A JP 2004-361156 A

  Generally, the inspection distribution apparatus as described above is incorporated in a production line so as to divide a conveyor for transportation forming the production line and to be interposed in the divided part. Usually, in the inspection distribution apparatus, as described in Patent Document 1, each of the feeding section, the inspection section, and the distribution section has a conveyor, and these conveyors are arranged in series, so that the article The length of the apparatus in the conveyance direction tends to be long, and as a result, the product production line itself becomes long. The longer the production line for goods, the more space is required for the production line.

  Further, the sorting unit of the inspection sorting apparatus is configured to detect that the article has moved from the conveyor of the testing unit to the conveyor of the sorting unit, and to operate an arm or a nozzle that ejects compressed air. However, particularly in the air jet type, since compressed air is ejected instantaneously, the conveying speed of the conveyor and the position of the nozzle have to be strictly adjusted.

  Accordingly, the present invention has been made to solve the above-described problems, and inspects an article to be conveyed, and performs inspection distribution in which the articles are distributed by air jet based on the inspection result. Inspection distribution that does not require a conveyor for distributing articles, can reduce the length of the apparatus in the conveyance direction of the article, and simplifies the position adjustment of nozzles that eject compressed air An object is to provide an apparatus.

  The inspection distribution device of the present invention of the present invention is provided with a feeding section provided with a feeding conveyor for conveying an article to be inspected downstream at a predetermined interval, while conveying the article being conveyed downstream. An inspection unit including an inspection conveyor for performing an inspection; and a distribution unit that is arranged downstream of the inspection unit and distributes the articles conveyed according to the inspection result in the inspection unit. And an article detection sensor that detects the article conveyed from the inspection section, and a downstream position of the article detection sensor so that a relative position in the article conveyance direction with respect to the article detection sensor is constant. An air nozzle that ejects compressed air to the article is provided as one sorting unit.

  According to the inspection distribution device having the above configuration, the air nozzle and the sensor constituting the distribution unit can be handled as one unit, so that the distribution unit can be attached to the apparatus main body, and the air nozzle and the article of the distribution unit. Position adjustment work with the detection sensor becomes easy. Furthermore, the apparatus does not require a sorting conveyor for forming a stage for sorting articles, and the apparatus length in the article transport direction is shortened by as much as the sorting conveyor provided in the conventional inspection sorting apparatus. Can do. And if the conveyance surface of the conveyor provided in the production line separate from the inspection distribution device is used as a stage for distributing articles, the length of the production line can be shortened.

  In the inspection distribution device, it is preferable that the distribution unit includes a distribution confirmation sensor that is disposed on the downstream side of the air nozzle and detects that the article has been distributed. Thereby, it can be confirmed that the articles are normally distributed by the distribution unit.

  In the above, the inspection distribution device includes a base that supports the feeding conveyor and the inspection conveyor, and a mounted body that extends from the base to the downstream side of the inspection unit, and the distribution unit. Can be attached to the attached body.

  Furthermore, in the inspection distribution apparatus, the distribution unit includes a mounting tool for mounting on the mounted body, and the article detection sensor and the air nozzle are vertically moved with respect to the article conveyed from the inspection unit. It is preferable that it is attached to the said fixture so that the position of a direction can be adjusted. Accordingly, the height positions of the air nozzle and the article detection sensor can be adjusted according to the size of the article, and effective compressed air blowing and efficient article detection can be performed.

  Furthermore, in the inspection distribution apparatus, it is preferable that the attached body is configured to be extendable and contractible in the conveyance direction of the article. Thereby, while being able to adjust the position of the distribution unit with respect to an inspection part, at the time of non-use and conveyance, a to-be-attached body can be shortened to the shortest and an apparatus can be stored compactly.

  In the inspection distribution device, the inspection unit includes at least one of a weight detector, a metal detector, a seal checker, an X-ray inspection device, a color selector, a shape selector, and a rank selector. is doing. Thereby, a desired test | inspection can be performed with an test | inspection distribution apparatus.

  The present invention has the following effects.

  According to the present invention, the attaching operation of the distributing unit to the apparatus main body and the position adjusting operation of the air nozzle and the sensor of the distributing unit are facilitated. Furthermore, since the inspection distribution device does not require a distribution conveyor for forming a stage for distributing the articles, the inspection distribution device is transported by as much as the distribution conveyor provided in the conventional inspection distribution device. The device length in the direction can be shortened.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference symbols throughout the drawings, and redundant description thereof is omitted.

(Embodiment)
[Outline of configuration of inspection distribution device]
First, a schematic configuration of an inspection distribution device (inspection device with an article distribution function) according to an embodiment of the present invention will be described. In the following, a weight selection device having a function as a weight detector in the inspection unit will be described as an embodiment of the inspection distribution device. However, the inspection distribution device according to the present invention is not limited to the weight sorting device, and for example, a weight detector, a metal detector, a seal checker, an X-ray inspection device, a color sorter, a shape sorter, In addition, it is possible to perform a desired inspection with at least one of the functions of the rank selector.

  FIG. 1 is a diagram showing an inspection distribution apparatus according to the present embodiment. As shown in FIG. 1, the inspection distribution device 100 includes an infeed unit 3 having an infeed conveyor 3a, an inspection unit 4 having an inspection conveyor 4a, a distribution unit 21 having an air nozzle 23, and an inspection distribution device. And an arithmetic control unit 70 (FIG. 6) for controlling the operation of 100.

  The inspection distribution device 100 is disposed between two conveyors (hereinafter referred to as “incoming conveyor 13” and “outlet conveyor 15”) that form an article conveying path (production line), and an incoming conveyor. 13, the delivery conveyor 3a, the inspection conveyor 4a, and the carry-out conveyor 15 are arranged in series to form an article conveyance path. In the inspection distribution apparatus 100, the weight of the article conveyed by the inspection unit 4 is measured while the article is transferred from the carry-in conveyor 13 to the carry-out conveyor 15, and the weight of the article measured by the arithmetic control unit 70 is measured. Based on this, the pass / fail of the article is determined, and the sorting unit 21 is configured to exclude the rejected product from the production line.

  The feeding conveyor 3a and the inspection conveyor 4a of the inspection distribution device 100 are supported by one base 10. The base 10 is composed of two upside-down U-shaped leg frames 7 and 7 and connecting rods 12 and 12 for connecting these leg frames 7 and 7 and has four legs. Yes. An infeed conveyor 3a and an inspection conveyor 4a are fixed on the connecting rods 12 and 12 via a support plate. Furthermore, the lower end of the stays 8 and 8 with the guard bar 9 fixed to the upper end is fixed to the connecting rod 12. The guard bar 9 is disposed along the conveyance direction of the articles on both sides of the infeed conveyor 3a and the inspection conveyor 4a, and foreign objects including workers enter the conveyance surfaces of the infeed conveyor 3a and the inspection conveyor 4a. It is a defense to prevent it.

  Furthermore, the electrical component storage box 2 is attached to the base 10. The electrical component storage box 2 stores electrical components such as the arithmetic control unit 70. On the surface of the electrical component storage box 2, an operation setting display unit 1 and a power ON / OFF switch 14 for operating power ON / OFF of the inspection distribution device 100 are provided.

  The height of the base 10 is variable by expanding and contracting the leg frames 7 and 7, and the height of the upper surface (conveying surface) of the carry-in conveyor 13, the carry-out conveyor 15, the feed conveyor 3a, and the inspection conveyor 4a. Are adjusted to be equal to each other.

[Sending part 3]
Here, the sending-in unit 3 will be described. The infeed conveyor 3a provided in the infeed unit 3 sequentially receives the articles conveyed by the carry-in conveyor 13 on the conveyor, adjusts the interval of the articles on the conveyor to be substantially constant, and then transfers the articles to the inspection conveyor 4a. To do. Thereby, it is possible to prevent a plurality of articles from being simultaneously weighed on the inspection conveyor 4a.

[Inspection unit 4]
Next, the inspection unit 4 will be described. The inspection conveyor 4a provided in the inspection unit 4 sequentially receives the articles conveyed by the feeding conveyor 3a on the conveyor, and measures the weight of the articles on the conveyor from the change in the weight of the conveyor. In the present embodiment, the inspection conveyor 4a is supported by a weight sensor 38 (FIG. 6) including a load cell, and the weight sensor 38 measures a change in the weight of the conveyor. Further, the inspection unit 4 performs weighing after detecting that the article is positioned on the inspection conveyor according to the detection signal of the article detection sensor 5.

  The article detection sensor 5 detects the movement of articles between the feeding conveyor 3a and the inspection conveyor 4a, and is provided between the feeding conveyor 3a and the inspection conveyor 4a. The article detection sensor 5 includes a light projecting unit 5a and a light receiving unit 5b, and an article is detected when light emitted from the light projecting unit 5a is not received by the light receiving unit 5b. In the present embodiment, the light projecting portion 5 a and the light receiving portion 5 b of the article detection sensor 5 are both fixed to the guard bars 9, 9 provided on the base 10 via the brackets 6, 6.

[Distributing part 21]
Next, the distribution unit 21 will be described. FIG. 2 is a diagram showing a distribution unit (distribution unit), FIG. 3 is an exploded configuration diagram of the distribution unit, FIG. 4 is a diagram for explaining the movable direction of the components of the distribution unit, and FIG. It is a figure which shows another aspect.

  As shown in FIGS. 1-3, the distribution part 21 is an air jet type, and the distribution part 21 spouts the compressed air sent through the air supply pipe 35 from the air pump 36 (FIG. 6) with respect to an article. The air nozzle 23 that performs the detection, the article detection sensor 22 that detects the article conveyed from the inspection unit 4 to which the compressed air is blown, and the article is distributed by the blowing of the compressed air (that is, discharged from the conveyance path). The distribution confirmation sensor 24 that detects the above is configured as one unit that can be handled in an integrated manner (hereinafter also referred to as “distribution unit”). In this sorting unit, the relative positions of the article detection sensor 22, the air nozzle 23, and the sorting confirmation sensor 24 in the article conveyance direction are fixed. That is, the distance in the conveyance direction of the article of the air nozzle 23 with respect to the article detection sensor 22 is fixed, and the distance of the distribution confirmation sensor 24 in the conveyance direction of the article with respect to the air nozzle 23 is fixed.

  In the sorting unit 21, the article detection sensor 22 detects that the target article has arrived at the sorting unit 21, and the compressed air is ejected from the air nozzle 23 to the detected article. Thus, it is detected that the article has been blown off by the compressed air and discharged from the conveyance path, that is, the article has been distributed.

  In the distribution unit 21 according to the present embodiment, the article detection sensor 22, the air nozzle 23, and the distribution confirmation sensor 24 are configured as one distribution unit. However, as illustrated in FIG. The article detection sensor 22 excluding the sensor 24 and the air nozzle 23 may be configured as one sorting unit.

  The distribution unit 21 (distribution unit) is an extension member (attachment body) connected to the guard bar 9 in a cantilever manner so as to extend the guard bar 9 provided on the base 10 to the downstream side in the article conveyance direction. It is attached to 9a. The distribution unit 21 is attached to the extension member 9a on the downstream side in the article conveyance direction from the inspection conveyor 4a, and the distribution unit 21 is on the downstream side in the article conveyance direction from the inspection conveyor 4a. 15 is located above. That is, the distribution part 21 is attached to the extension member (attachment body) 9 a extending from the base 10 to the downstream side of the inspection part 4.

  In the present embodiment, the guard bar 9 is a cylindrical body, and the extending member 9a is a rod-shaped body or a cylindrical body having an outer diameter that can be slid and inserted into the inner periphery of the guard bar 9. The extension member 9a inserted in the guard bar 9 is fixed to the guard bar 9 by a fixing tool 9b such as a bolt. By changing the degree of insertion of the extension member 9a into the guard bar 9, the extension member 9a (exactly, the portion protruding from the guard bar 9 of the extension member 9a) expands and contracts, and the extension member 9a has its effective length in the conveyance direction of the article. Can be changed. As described above, the extension member 9a expands and contracts in the conveyance direction of the article, so that the position of the distribution unit 21 with respect to the inspection conveyor 4a can be adjusted, and the extension member 9a can be shortened to the shortest when not in use or during conveyance. The device can be stored compactly.

  The article detection sensor 22, the air nozzle 23, and the sorting confirmation sensor 24 of the sorting unit 21 are attached to a fixture 30 fixed to the extension member 9a. The attachment 30 includes a nozzle attachment member 31 to which the air nozzle 23 is attached, a sensor attachment member 33 to which the article detection sensor 22 and the distribution confirmation sensor 24 are attached, and the nozzle attachment member 31 and the sensor attachment member 33 to the extension member 9a. And a unit mounting member 32 to be fixed to.

  The nozzle attachment member 31 is a plate-like body bent in a substantially L shape, and one side of the bent portion is a unit attachment portion 31a for attaching the unit attachment member 32, and the other side of the bent portion is also the air nozzle 23. It is the nozzle attachment part 31b for attaching. A mounting groove 31c for mounting the air nozzle 23 and the unit mounting member 32 is formed across the unit mounting portion 31a and the nozzle mounting portion 31b. The air nozzle 23 is attached to the nozzle attachment member 31 by a bolt 34 that passes through the air nozzle 23, the washer 25, the attachment groove 31 c of the nozzle attachment portion 31 b of the nozzle attachment member 31, and the plate-like nut 26 in order. Yes. As shown in FIG. 4, the air nozzle 23 attached to the nozzle attachment member 31 in this manner rotates substantially in parallel with the nozzle attachment portion 31 b of the nozzle attachment member 31, and the compressed air blowing direction is changed to the article conveyance direction. Can be adjusted back and forth.

  The sensor mounting member 33 has a unit mounting portion 33a for mounting the unit mounting member 32, a first sensor mounting portion 33b for mounting the distribution confirmation sensor 24, and a second sensor mounting for mounting the article detection sensor 22. The portion 33d is integrally formed. In the sensor mounting member 33, the second sensor mounting portion 33d is located on the most upstream side in the article conveyance direction, and the first sensor attachment portion 33b is located on the most downstream side in the article conveyance direction. The unit attachment part 33a is located between 33b and the second sensor attachment part 33d. The unit mounting portion 33a has two mounting holes formed vertically. The first sensor mounting portion 33b and the second sensor mounting portion 33d are provided with vertical mounting grooves 33c and 33e for mounting the sensor, respectively. And the distribution confirmation sensor 24 is attached to the attachment groove 33c of the first sensor attachment portion 33b by a fixture such as a bolt, and the article detection sensor 22 is fixed to the attachment groove 33e of the second sensor attachment portion 33d. It is attached with tools. As shown in FIG. 4, these sensors 22 and 24 have their mounting positions (mounting heights) within the range of the length of the mounting groove 33c of the first sensor mounting portion 33b or the mounting groove 33e of the second sensor mounting portion 33d. Can be adjusted.

  The unit mounting member 32 has a shape straddling the extension member 9a up and down in contact with the extension member 9a at its inner crotch, and mounting holes are formed on both sides of the extension member 9a. Then, with the unit mounting member 32 straddling the extension member 9a, one mounting hole of the unit mounting portion 33a of the sensor mounting member 33, the mounting groove 31c of the unit mounting portion 31a of the nozzle mounting member 31, and the unit mounting member A bolt 27a passes through one of the mounting holes 32 in order. Further, the other mounting hole of the unit mounting portion 33a of the sensor mounting member 33, the mounting groove 31c of the unit mounting portion 31a of the nozzle mounting member 31, and the other mounting hole of the unit mounting member 32 are sequentially arranged in the flat clamp lever 27b. The screw part penetrates. Thus, the nozzle attachment member 31 and the sensor attachment member 33 are attached to the extension member 9 a by the unit attachment member 32. The nozzle mounting member 31 can adjust the mounting position (mounting height) within the range of the mounting groove 31c provided in the unit mounting portion 31a of the nozzle mounting member 31, and thereby the mounting position (mounting height) of the air nozzle 23. ) Can be adjusted.

  As described above, the air nozzle 23, the article detection sensor 22, and the sorting confirmation sensor 24 attached to the fixture 30 have a constant relative positional relationship in the article conveyance direction. On the other hand, the distribution part 21 including the fixture 30 can be integrally moved on the extension member 9a in the article conveyance direction (direction in which the extension member 9a extends) to adjust its position. As shown in FIG. 4, it is possible to adjust the mounting position (elevation angle) by integrally rotating the distributing portion 21 including the mounting tool 30 around the extending member 9a.

  Further, the air nozzle 23, the article detection sensor 22, and the sorting confirmation sensor 24 attached to the fixture 30 can individually adjust the attachment position in the height direction with respect to the extension member 9a. That is, the air nozzle 23, the article detection sensor 22, and the sorting confirmation sensor 24 attached to the fixture 30 are vertically moved with respect to the article (article on the carrying surface of the carry-out conveyor 15) conveyed from the inspection unit 4. It is attached to the fixture 30 so that the position of can be adjusted. Thereby, if the positions of the air nozzle 23, the article detection sensor 22, and the sorting confirmation sensor 24 are adjusted according to the size of the article, it is possible to perform effective blowing of compressed air and efficient detection of the article. .

  In the conventional inspection distribution device, the article detection sensor and the air nozzle are installed separately, and after the target article is detected by the article detection sensor, the timing is determined from the distance between the article detection sensor and the air nozzle and the conveyance speed of the article. And the compressed air was ejected from the air nozzle. On the other hand, in the distribution unit 21 of the inspection distribution apparatus 100 according to the present embodiment, the air nozzle 23, the article detection sensor 22, and the distribution confirmation sensor 24 are configured as one distribution unit. Since the positional relationship in the conveyance direction of the articles is fixed and the article detection sensor 22 and the air nozzle 23 are arranged close to each other, compressed air is discharged by the air nozzle 23 after the article is detected by the article detection sensor 22. The timing until ejection is almost constant, and there is no need to adjust or change the timing individually. Therefore, the attaching operation of the distributing unit 21 to the base 10 side and the position adjusting operation of the air nozzle 23 and the sensors 22 and 24 of the distributing unit 21 become easy.

  Furthermore, in the conventional inspection distribution device, the distribution unit is also provided with a conveyor. However, in the inspection distribution device 100 according to the present embodiment, the distribution surface of the carry-out conveyor 15 is moved by the distribution unit 21. It is used as a stage for sorting. The carry-out conveyor 15 is a conveyor forming an article production line, and is separate from the inspection distribution apparatus 100. That is, since the inspection distribution apparatus 100 does not include a conveyor for distributing the articles, the apparatus length of the inspection distribution apparatus 100 in the conveyance direction of the articles can be shortened as compared with the conventional inspection distribution apparatus. Thereby, it can contribute to shortening of a production line, and also can contribute to size reduction and price reduction of the inspection distribution apparatus 100.

[Calculation control unit 70]
Here, the arithmetic control unit 70 will be described. FIG. 6 is a block diagram schematically showing the configuration of the arithmetic control unit.

  As shown in FIG. 6, the calculation control unit 70 includes a control circuit 72 having a calculation unit 66 and a storage unit 67, a conveyor drive circuit 73, a distribution unit drive circuit 74, an A / D conversion circuit 75, an I / O circuit 76. The calculation unit 66 of the calculation control unit 70 is connected to the operation setting display unit 1 having an input unit 71 and a display unit 77.

  The calculation unit 66 of the control circuit 72 is configured by a general calculation device such as a CPU. The calculation unit 66 controls the conveyor drive circuit 73 and the distribution unit drive circuit 74 based on the information stored in the weight sensor 38, the detection sensor 5, and the storage unit 67. The storage unit 67 is configured by a general storage device such as a memory. The storage unit 67 stores the program executed by the calculation unit 66 and the setting information related to weight selection input from the input unit 71 (for example, the reference value, the upper limit deviation value, the lower limit deviation value, etc. corresponding to the article name code of the article). ), Information on control results controlled by the arithmetic control unit 70, and the like are stored.

  The conveyor drive circuit 73 is configured to control the operations of the conveyors of the feeding conveyor 3a and the inspection conveyor 4a based on a control signal from the calculation unit 66. The allocating unit drive circuit 74 is configured to control the operation of the allocating unit 21 based on a control signal from the calculating unit 66 so as to exclude rejected products from the conveyance path. The A / D conversion circuit 75 is configured to A / D convert the detection signal of the weight sensor 38 included in the inspection unit 4 and send it to the calculation unit 66. The I / O circuit 76 converts the detection signal of the article detection sensor 5 and the detection signal of the article detection sensor 22 and the sorting confirmation sensor 24 provided in the sorting unit 21 into a detection signal of a predetermined level and performs calculation. It is configured to send to the unit 66.

  The input unit 71 and the display unit 77 are integrally provided as the operation setting display unit 1 provided in the electrical component storage box 2 in the present embodiment. The operation setting display unit 1 is a touch screen formed by pasting a touch panel on a liquid crystal screen. The operation setting display unit 1 functions as an input unit 71 that inputs information related to weight selection settings to the calculation unit 66 of the calculation control unit 70, and also includes input information of the input unit 71 and control information (distribution) of the calculation control unit 70. A display unit that displays an output from the calculation unit 66 of the calculation control unit 70), for example, setting of distribution conditions in the unit 21, measurement value data storing measurement values, and total data of articles distributed by the distribution unit 21 77 functions.

[Operation of Inspection Distribution Device 100]
Here, the operation of the inspection distribution apparatus 100 having the above configuration will be described. The calculation unit 66 of the calculation control unit 70 reads out a predetermined operation program stored in the storage unit 67 and executes it, thereby controlling each component of the inspection distribution device 100 as shown below. Inspect and sort rejected products.

  First, the calculation part 66 of the calculation control part 70 operates the infeed conveyor 3a and the inspection conveyor 4a via the conveyor drive circuit 73, and conveys the articles | goods inspected by these conveyors 3a and 4a. Then, the calculation unit 66 detects that the article has moved from the delivery conveyor 3a to the inspection conveyor 4a by the detection signal supplied from the article detection sensor 5 via the I / O circuit 76, and a predetermined time has elapsed. When the timing signal is generated. Here, the “predetermined time” is the time required for the article to move from the feed conveyor 3a to the inspection conveyor 4a until the tip reaches the measurement position (exit end of the conveyor) of the inspection conveyor 4a. .

  The calculation unit 66 reads the reference value, the upper limit deviation value, the lower limit deviation value, and the like corresponding to the article name code of the article to be inspected from the storage unit 67, and calculates the upper limit value and the lower limit value of the weight of the article. Then, when the timing signal is supplied, the calculation unit 66 acquires the weighing signal (detection signal) of the weight sensor 38 via the A / D conversion circuit 75, and whether the weighing signal is equal to or higher than the upper limit value. It is determined whether it is between the upper limit value and the lower limit value or less than the lower limit value. The calculation unit 66 determines “accepted product” when the weighing signal exists between the upper limit value and the lower limit value, and determines that the product is “failed product” when the weighing signal is greater than or equal to the upper limit value or less than the lower limit value. Is determined.

  When the calculation unit 66 determines that the article is an acceptable product, the calculation unit 66 conveys the accepted product as it is along the conveyance path, creates information on the inspection result of the article, and stores the information in the storage unit 67. On the other hand, when the calculation unit 66 determines that the article is a rejected product, the rejected product has arrived at the distribution unit 21 based on the detection signal supplied from the article detection sensor 22 via the I / O circuit 76. This is detected, and the electromagnetic valve 36 is operated via the distribution unit drive circuit 74. Thereby, compressed air is sprayed from the air nozzle 23 to the rejected product being conveyed on the carry-out conveyor 15, and the rejected product is blown off from the transport path by the compressed air. Then, the calculation unit 66 confirms that the rejected product is normally distributed by the detection signal supplied from the sorting confirmation sensor 24 via the I / O circuit 76 and that there is no rejected product on the carry-out conveyor 15. Detected, information on the inspection result of the article is created and stored in the storage unit 67.

  The present invention can be widely applied to an inspection distribution apparatus including an inspection unit that inspects an article and a distribution unit that distributes the inspected article according to a predetermined condition. The inspection unit is not limited to the weight detector included in the inspection distribution device according to the above-described embodiment. For example, the weight detector, the metal detector, the seal checker, the X-ray inspection device, the color selector, and the shape selector And any one or a combination of rank sorters.

It is a figure which shows the inspection distribution apparatus which concerns on this Embodiment. It is a figure which shows a distribution part (distribution unit). It is a decomposition | disassembly block diagram of a distribution part. It is a figure explaining the movable direction of the component of a distribution part. It is a figure which shows another aspect of a distribution part. It is a block diagram which shows the structure of an arithmetic control part roughly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation setting display part 2 Electrical component storage box 3 Feeding part 4 Inspection part 5 Article detection sensor 9 Guard bar 9a Extension member (attachment body)
10 base 13 carry-in conveyor 15 carry-out conveyor 21 sorting part (sorting unit)
22 article detection sensor 23 air nozzle 24 sorting confirmation sensor 25 washer 26 plate nut 30 attachment tool 31 nozzle attachment member 32 unit attachment member 33 sensor attachment member 38 weight sensor

Claims (6)

An infeed section provided with an infeed conveyor for conveying an article to be inspected downstream at a predetermined interval;
An inspection unit provided with an inspection conveyor for performing inspection while conveying the article being conveyed downstream;
A sorting unit that is arranged on the downstream side of the testing unit and sorts the articles conveyed according to the test result in the testing unit;
The distribution unit has an article detection sensor for detecting the article conveyed from the inspection unit, and a relative position in the article conveyance direction with respect to the article detection sensor on the downstream side of the article detection sensor. An air nozzle that is arranged and ejects compressed air to the article as one sorting unit;
Inspection distribution device. The sorting unit includes a sorting confirmation sensor that is disposed downstream of the air nozzle and detects that the article has been sorted.
The inspection distribution device according to claim 1. A base that supports the feeding conveyor and the inspection conveyor, and a mounted body that extends from the base to the downstream side of the inspection unit,
The sorting unit is attached to the attached body,
The inspection distribution device according to claim 1 or 2. The sorting unit includes a fixture for attaching to the attached body,
The article detection sensor and the air nozzle are attached to the fixture so that the vertical position of the article conveyed from the inspection unit can be adjusted.
The inspection distribution device according to claim 3. The attached body is configured to be extendable and contractible in the conveying direction of the article.
The inspection distribution device according to claim 3 or 4. The inspection unit includes at least one of a weight detector, a metal detector, a seal checker, an X-ray inspection device, a color selector, a shape selector, and a rank selector.
The inspection distribution device according to any one of claims 1 to 5.

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