JP6083667B2 - Inspection equipment - Google Patents

Description

  The present invention relates to an article inspection apparatus for inspecting a subject using electromagnetic waves.

  In the industry that produces articles, inspections using electromagnetic waves such as microwaves, infrared rays, visible light, ultraviolet rays, X-rays, and γ rays are performed on the mass-produced products that are produced.

  Inspection using electromagnetic waves is performed by detecting electromagnetic waves that have passed through the subject, electromagnetic waves reflected or scattered by the subject, or electromagnetic waves emitted from the subject.

  The inspection is an inspection of dimensions, shape, area, volume, mass, number, arrangement, structure, material, color, state, foreign matter, scratch, and other physical quantities.

  In such an inspection, mass-produced products are successively conveyed using a conveyance mechanism, and inspections are successively performed by inspection means fixedly installed at an inspection position.

Japanese Patent Laid-Open No. 2001-4560

  In the inspection apparatus described above, when switching the inspection target to a mass-produced product having a different external shape (model), conventionally, there has been a problem that an operation such as exchanging the article holding portion of the transport mechanism is necessary and smooth switching cannot be performed. It was.

  An object of an embodiment of the present invention is to provide an article inspection apparatus capable of easily switching to a subject having a different outer shape in a mass-produced product inspection.

In order to achieve the above object, an article inspection apparatus according to an embodiment is an article inspection apparatus having an inspection unit that sequentially performs an inspection using electromagnetic waves on a subject that is successively transferred to a predetermined position. A conveyor that transports the subject to the predetermined position in a predetermined transport direction, and further transports from the predetermined position; and a partition plate that is on a placement surface of the conveyor and partitions the subject in the transport direction. The front partition plate and the rear partition plate that limit the position of the subject on both sides in the transport direction, and the partition plate interval variable that is set by changing the distance between the front partition plate and the rear partition plate mechanism and the conveyor, a first conveyor having a first belt stretched between the first pulley and second pulley and said first pulley and said second pulley, said first Coaxial with the pulley The third pulley and the second pulley and the second conveyor you comprise a second belt stretched between said the fourth pulley having the same diameter third pulley and the fourth pulley coaxially of has a configuration in which bets are placed adjacent partition plate is the first belt and the pre-Symbol second belt straight square rod that is perpendicular to the transport direction are fixed to the first belt of the front It has a length covering the width of the partition plate of the rear side is the second of said at straight square bar which belt is fixed perpendicular to the transport direction first belt and the second belts having a width The partition plate interval variable mechanism has a mechanism for variably connecting a connection angle around an axis between the first pulley and the third pulley that are coaxial, and the predetermined position rotation of the positioning block and the roller arranged on the near vicinity of said roller A positioning mechanism consisting moving mechanism of the the structure roller, with respect to the subject that has been conveyed to the predetermined position, by rotating by contact with the row La, slide the specimen on said conveyor thereby, has a positioning mechanism for positioning is brought into contact with at least prior Symbol positioning block, said positioning mechanism, said analyte is brought into contact with the partition plate of the positioning block and the front, or, before Symbol subject The gist is to contact the positioning block and the rear partition plate for positioning .

With this configuration, it is possible to easily switch to a subject having a different shape by changing the interval between the front partition plate and the rear partition plate by the partition plate interval variable mechanism. Further, the first pulleys and the third by changing the connection angle of the pulley can first belt and the second shifted rotation of the belt Succoth easily front fixed to the first belt The distance between the partition plate and the rear partition plate fixed to the second belt can be changed. In addition, the inspection can be reliably performed by positioning the subject conveyed to a predetermined position by bringing it into contact with the positioning block .

  Further, the article inspection apparatus according to the embodiment may include a block moving mechanism that moves the positioning block, and may change a position where the subject is positioned.

  With this configuration, the position of the subject at the time of examination can be changed, and the subject can be easily switched to a subject having a different shape.

1 is a configuration diagram of an X-ray inspection apparatus according to a first embodiment of the present invention. FIG. 2 is a mechanism diagram illustrating a transport mechanism according to a first embodiment of the present invention (FIG. 2A is a plan view and FIG. 2B is a front view). It is detail drawing (AA cross-section arrow of FIG. 2) of the partition plate space | interval variable mechanism which concerns on the 1st Embodiment of this invention. It is a BB cross-sectional arrow view of FIG. It is a mechanism figure (plan view) showing a positioning mechanism concerning a 1st embodiment of the present invention. It is C arrow line view of FIG. It is a schematic diagram which shows the positioning state of the battery in the 1st Embodiment of this invention.

(First embodiment)
The configuration of the first embodiment will be described with reference to FIGS. FIG. 1 is a configuration diagram of an X-ray inspection apparatus according to the first embodiment.

  An X-ray inspection apparatus (article inspection apparatus) 1 is an apparatus that automatically inspects and sorts a plurality of subjects having the same shape as mass-produced products one after another.

  The X-ray inspection apparatus 1 includes an input mechanism 4 that inputs a battery 2 as a subject into a transport mechanism (conveyor) 3 and a positioning mechanism that positions the battery 2 transported to an inspection position (predetermined position) 5 by the transport mechanism 3. 6 and an X-ray source 8 that emits X-rays (electromagnetic waves) 7 and an X-ray 7 that has passed through the battery 2 are detected and output as a transmission image (transmission data). X-ray detector 9, a control processing unit 10 that processes the detected transmission image, and a take-out mechanism 11 that takes out and sorts battery 2 further carried from inspection position 5 by carrying mechanism 3.

  Here, the X-ray source 8, the X-ray detector 9, and the control processing unit 10 together correspond to the inspection means of claim 1.

  The battery 2 has a positive electrode plate and a negative electrode plate inside, and the X-ray inspection apparatus 1 is for inspecting misalignment of the internal positive electrode electrode and the negative electrode plate.

  The X-ray source 8 is composed of an X-ray tube, a high voltage generator, an X-ray controller, and the like, and emits X-rays radially from the X-ray tube around one point (X-ray focal point F). is there.

  The X-ray detector 9 detects X-rays with two-dimensional spatial resolution, converts the X-ray intensity distribution into digital data, and outputs it as a transmission image (transmission data).

  The X-ray source 8 and the X-ray detector 9 are arranged and fixed to face each other with the inspection position 5 interposed therebetween, and the transmission image detection range is determined by the X-ray focal point F and the detection surface size of the X-ray detector 9. (The area of the detected X-ray 7 is also referred to as a visual field range), and a transmission image detection range for the battery 2 (battery shown in the transmission image) is determined by the positioning relationship between the battery 2 conveyed to the inspection position 5 and the X-ray 7. 2 range and enlargement ratio) are set.

  The transport mechanism (conveyor) 3 is a tact conveyor (intermittent feed conveyor) that transports the battery in a constant transport direction while repeating a constant distance of feeding and rest.

  The control processing unit 10 is a normal computer and includes a CPU, a memory, an input unit such as a keyboard / mouse, a display unit, an interface, a mechanism control board, a disk (memory), a communication unit, and the like.

  The control processing unit 10 includes a mechanism control function for controlling the transport mechanism 3, the input mechanism 4, the positioning mechanism 6, the take-out mechanism 11, and the like as a function performed by the CPU in a sequence determined by a program, and an X-ray detector 9. A data processing function that processes the captured transmission image and detects the position deviation of the electrode plate to determine pass / fail, and an X-ray control function that issues an X-ray ON / OFF command to the X-ray source 8 have.

  In addition, although it has an X-ray shielding box etc. for preventing X-rays from leaking to the outside as constituent elements, it is not shown.

  FIG. 2 is a mechanism diagram illustrating the transport mechanism according to the first embodiment. 2A is a diagram (plan view) viewed from above, and FIG. 2B is a diagram (front view) viewed from the side.

  The transport mechanism (conveyor) 3 includes a first conveyor 21 including a first pulley 21, a second pulley 22, a first belt 23 stretched between the first pulley 21 and the second pulley 22, and a first pulley 21. A second pulley 27 having a third pulley 25 coaxial with the same diameter and a fourth pulley 26 coaxial with the same diameter as the second pulley 22 and a second belt 27 stretched between the third pulley 25 and the fourth pulley 26. The conveyor 28 is arranged adjacent to the conveyor 28.

  Here, the term “coaxial” means that the axes (representing straight lines) are common.

  The pulleys 21, 22, 25, and 26 are rotatably supported from the frame of the transport mechanism 3, but the frame is not shown.

  Further, FIG. 2 is drawn with the belt length reduced in the transport direction VA for easy viewing.

  The mounting surface of the transport mechanism 3 is a partition plate orthogonal to the transport direction (arrow in the figure) VA, and includes a front partition plate 29a that positions the battery 2 on both sides of the transport direction VA, and a rear partition plate. 29 b is arranged, the front partition plate 29 a is fixed to the first belt 23, and the rear partition plate 29 b is fixed to the second belt 27.

  Here, many of the front partition plates 29 a having the same shape are fixed on the first belt 23 at equal intervals (pitch p) over the entire circumference, and the rear partition plates 29 b are also configured by the second belt 27 with many of the same shape. Fixed at regular intervals (pitch p) over the entire circumference.

  The front partition plate 29a and the rear partition plate 29b are chamfered with rounded top corners.

  The space between the rear partition plate 29b and the front partition plate 29a adjacent to the transport direction VA is equally spaced d, and the battery 2 is limited in position from both sides in the transport direction VA to the first belt 23. And placed on the second belt 27.

  The motor 30 drives the first conveyor 24 by rotating the first pulley 21 via the belt 31. The partition plate interval variable mechanism 32 drives the second conveyor 28 by connecting the first pulley 21 to the coaxial third pulley 25 and rotating the third pulley 25 integrally with the first pulley. Here, since the first pulley 21 and the third pulley 25 have the same diameter, the first belt 23 and the second belt 27 are driven at the same speed.

  Although not shown, the first pulley 21 and the third pulley 25 are toothed pulleys, and the first belt 23 and the second belt 27 are toothed belts that mesh with the first pulley 21 and the third pulley 25, respectively. Or it is a belt with a hole and it is the structure which the slip between a pulley and a belt does not arise. The second pulley 22 and the fourth pulley 26 are also toothed pulleys that mesh with the first belt 23 and the second belt 27, respectively, but this is not essential and may be a toothless pulley. As a result, the first belt 23 and the second belt 27 are not displaced during driving, and the distance d between the partition plates is not displaced.

  Although not shown, an encoder is coaxially connected to the first pulley 21 or the second pulley 22. The encoder detects the amount of movement of the belt, sends a signal to the control processing unit 10, and the control processing unit 10 feedback-controls the motor 30.

  FIG. 3 is a detailed view (part AA cross-sectional view of FIG. 2) of the partition plate interval variable mechanism according to the first embodiment. Moreover, FIG. 4 is a BB cross-sectional arrow view of FIG.

  The partition plate interval variable mechanism 32 is a mechanism that variably connects the first pulley 21 and the third pulley 25 that are coaxial with each other around the axis.

  The partition plate interval variable mechanism 32 is coaxial with respect to the first pulley 21, coaxially fixed with respect to the shaft 33, a bearing 34 that coaxially supports the shaft 33, and rotatably supports the third pulley 25. Of the worm wheel 35, the cylindrical worm gear 36 that engages with the worm wheel 35, a support portion 37 that fixes the cylindrical worm gear 36 to the third pulley 25 so as to be rotatable about its axis, and the cylindrical worm gear 36. It consists of a handle 38 fixed at the axial end.

  Here, the axis CA is an axis for the first pulley 21, the third pulley 25, the shaft 33, and the worm wheel 35, and is a common axis.

  Note that the shaft 33 is rotatably supported by the frame 40 via a bearing 39.

  With this configuration, the third pulley 25 that freely rotates coaxially and freely with respect to the first pulley 21 by the bearing 34 can be fixed and connected around the shaft by the engagement of the worm wheel 35 and the cylindrical worm gear 36. .

  Further, when the handle 38 is rotated by fingers to rotate the cylindrical worm gear 36, the third pulley 25 rotates around the axis relative to the first pulley 21, and the first pulley 21 and the third pulley 25 are moved around the axis. It is possible to connect by changing the connection angle.

  Thereby, a relative shift in the rotational direction can be given to the first belt 23 and the second belt 27, and the distance d between the front partition plate 29a and the rear partition plate 29b can be changed.

  If the distance d is set, then, when the first pulley 21 is rotated and conveyed, the first pulley 21 and the third pulley 25 have the same diameter. The conveyor 28 is driven at the same speed.

  FIG. 5 is a mechanism diagram (plan view) showing the positioning mechanism according to the first embodiment. 6 is a view taken in the direction of arrow C in FIG.

  The positioning mechanism 6 accurately positions the battery 2 transported to the inspection position 5 and stopped by the transport mechanism 3 at the inspection position 5. The positioning mechanism 6 includes a positioning block 50, a roller 51, a roller rotating mechanism 52, and a roller moving mechanism 53.

  The positioning block 50 is fixed in the vicinity of the inspection position 5 and positions the battery 2 by bringing a predetermined part of the battery 2 into contact with the positioning block 50.

  The roller 51 has two discs 51a and 51b having the same diameter and a pulley 51c having a smaller diameter joined together coaxially (axis RA) with the pulley 51c at the center, and the outer circumference of the two discs 51a and 51b. Each of the grooves has an O-ring fitted. As the O-ring, an O-ring made of a material such as silicon having an appropriate hardness and gripping force is used.

  The roller moving mechanism 53 is a mechanism that moves the roller 51 in three orthogonal directions X, Y, and Z (vertical direction), and an arm 54 that rotatably supports the roller 51 with a horizontal rotation axis (axis RA), and an arm The moving frame 56 is configured to support the slider 54 so as to slide up and down via a spring 55, and a driving unit 57 that moves the moving frame 56 in three directions.

  The axis RA of the roller 51 is inclined at an angle β with respect to the transport direction VA, and β is about 10 ° to 15 °.

  The roller rotation mechanism 52 is fixed to the arm 54, and includes a motor 52a, a torque limiter 52b, a pulley 52c, and a belt 52d.

  The rotating shaft of the motor 52a rotates the pulley 51c by rotating the pulley 52c via the torque limiter 52b, and rotates the belt 52d stretched between the pulley 52c and the pulley 51c of the roller 51, thereby rotating the roller 51.

  The positioning mechanism 6 moves the roller 51 to bring the outer periphery of the roller 51 into contact with the upper surface of the battery 2. At this time, since the roller 51 moves up and down via the spring 55, the roller 51 is urged by the spring 55 and pressed against the battery 2 in the downward direction.

  In this state, the positioning mechanism 6 rotates the roller 51 and applies a force to the battery 2 in the direction of the arrow FA perpendicular to the axis RA and along the horizontal plane by a frictional force with the outer periphery of the roller 51. Is slid on the transport mechanism 3 (the first belt 23 and the second belt 27) and is brought into contact with at least the positioning block 50 for positioning.

  When the battery 2 comes into contact with the positioning block 50, the load for rotating the roller 51 is increased, so that the torque limiter 52b works and slip occurs between the shaft of the motor 52a and the pulley 52c, which is necessary for the roller 51. The above rotational torque is not applied.

  The operation of the X-ray inspection apparatus according to the first embodiment will be described with reference to FIGS.

  First, prior to the inspection, the interval d of the partition plates is set according to the shape of the battery 2 that is a mass-produced product. Here, the operator rotates the handle 38 with a finger and sets the distance d to a predetermined value slightly wider than the width of the battery 2 (see FIGS. 2, 3 and 4).

  Next, the inspection is started. When the inspection is started, the transport mechanism (conveyor) 3 starts to drive.

  The first belt 23 and the second belt 27 are toothed belts, which are driven by meshing with the first pulley 21 and the third pulley 25, which are toothed pulleys, respectively. The battery 2 is conveyed without slipping.

  The control processing unit 10 detects the amount of movement of the belt with an encoder, performs feedback control, and sends the first belt 23 and the second belt 27 by a fixed distance (pitch p) corresponding to the placement interval of the battery 2, Intermittent feed (tact feed) that is stopped for a certain period is repeated.

  For each tact feed stop period, as shown below, the insertion of the battery 2, positioning / inspection, and selection are performed in parallel.

<Input>
The loading mechanism 4 is a mounting space between the front partition plate 29a and the rear partition plate 29b of the transport mechanism 3 during the tact feed stop period, and is placed on the mounting space that has come to the loading position. Then, the battery 2 is inserted.

  At this time, since the corners of the upper surfaces of the front partition plate 29a and the rear partition plate 29b are rounded and chamfered, the battery 2 slides down even if the loading position is slightly shifted, and the front partition plate 29a and the rear partition plate 29b It fits between the partition plates 29b. <> End.

<Positioning / Inspection>
In parallel with the charging, the positioning mechanism 6 and the inspection means (the X-ray source 8, the X-ray detector 9, and the control processing unit 10) stop the feeding of the battery 2 conveyed to the inspection position 5 by tact feeding. Inside, positioning and X-ray inspection and pass / fail judgment are performed as follows.

  FIG. 7 is a schematic diagram showing a positioning state of the battery in the first embodiment. FIG. 7A shows before positioning, and FIG. 7B shows after positioning.

  Referring to FIG. 7, positioning mechanism 6 positions battery 2 at inspection position 5 during the feed stop period.

  First, the positioning mechanism 6 moves the roller 51 by the roller moving mechanism 53 so as to contact the upper surface of the battery 2. Here, the roller 51 is biased by the spring 55 and pressed against the battery 2.

  Further, the positioning mechanism 6 rotates the roller 51 by the rotation mechanism 52. As a result, a force is applied to the battery 2 in the direction of the arrow FA, and the battery 2 slides on the transport mechanism 3 and is positioned in contact with the positioning block 50 and the front partition plate 29a.

  Note that when the battery 2 comes into contact with the positioning block 50, the load for rotating the roller 51 increases, so that the torque limiter 52b works and the roller 51 is not applied with an excessive rotational torque.

  Next, the battery 2 positioned at the inspection position 5 is irradiated with the X-ray 7 from the X-ray source 8 during the stoppage period, and the X-ray 7 transmitted through the battery 2 is detected by the X-ray detector 9. Then, the detected transmission image of the battery 2 is sent to the control processing unit 10.

  The control processing unit 10 processes the transmitted image of the battery 2 that has been sent and makes a pass / fail determination. Here, the edge of the positive electrode plate and the negative electrode plate is extracted from the transmission image, and the relative positional deviation from a predetermined arrangement between the positive electrode plate and the negative electrode plate is detected. Judged as defective. <> End.

<Selection>
In parallel with the positioning / inspection, the take-out mechanism 11 selects the battery 2 at the take-out position during the feed stop period. At this time, the control processing unit 10 controls the take-out mechanism 11 to take out the battery 2 determined to be defective and transfer it to a defective stock conveyor (not shown). It is carried out by the transport mechanism 3 as it is. <> End.

  When the above-described charging, positioning / inspection, and sorting are completed during the feed stop period, the next tact feed is performed, and the plurality of batteries 2 on the conveyor are moved by the battery interval (pitch p) in the transport direction VA. Then, the next stop period is entered, and the above-described input, positioning / inspection, and selection are repeated. Thus, the inspection and selection of the battery 2 are performed one after another.

(Effects of the first embodiment)
According to the present embodiment, during transportation, the battery 2 is limited between the front partition plate 29a and the rear partition plate 29b, and does not shift in the transport direction VA or overlap each other. One by one is positioned, and the inspection can be reliably performed without the transmission image being shifted.

  According to the present embodiment, since the interval d can be easily changed and set by the partition plate interval variable mechanism 32, an X-ray inspection apparatus that can be easily switched to the battery 2 having a different external shape can be provided.

  Further, the partition variable mechanism 32 has a unique self-locking mechanism that is operated by a combination of the worm wheel 35 and the cylindrical worm gear, and can only be rotated from one side from the handle 38 side. Therefore, the front partition plate 29a and the rear partition The distance between the plates 29b does not shift.

  Further, since the corners of the upper surfaces of the front partition plate 29a and the rear partition plate 29b are rounded and chamfered, the battery 2 slides down even if the insertion position of the battery 2 is slightly shifted, and the front partition plate 29a It is possible to fit between the rear partition plates 29b.

  According to this embodiment, since the battery 2 transported to the inspection position 5 is further positioned by being brought into contact with the positioning block 50, a transmitted image can be obtained without misalignment, and the inspection is reliably performed. It is possible to provide an X-ray inspection apparatus that can perform the same.

  Further, since the torque limiter presses the roller 51 whose rotational torque is limited against the battery 2 to move and position the battery 2, the battery 2 is not damaged.

(Modification of the first embodiment)
(1) In the first embodiment, as shown in FIG. 5, the rotation axis RA of the roller 51 of the positioning mechanism 6 is attached at an angle β counterclockwise with respect to the transport direction VA when viewed from above. However, it may be attached with an angle β in the clockwise direction. In this case, the battery 2 is positioned by contacting the positioning block 50 and the rear partition plate 29b.

  (2) In the first embodiment, referring to FIG. 7, in positioning, the battery 2 is brought into contact with the positioning block 50 and the front partition plate 29a. Also good. In this case, for example, the corner portion of the battery 2 is brought into contact with the inner corner portion of the L-shaped positioning block.

  (3) In the first embodiment, a block moving mechanism for moving the positioning block 50 is provided, and by moving the positioning block 50, the transmission image detection range for the battery 2 (the range of the battery 2 in the transmission image). Can be changed. Thereby, adjustment of a detection range becomes easy. Further, when switching to the battery 2 having a different external shape, the detection range can be easily switched.

  (4) In the transport mechanism 3 according to the first embodiment, various constituent elements can be rearranged. For example, the motor 30 may rotate the third pulley 25 instead of rotating the first pulley 21, or may rotate the second pulley 22 or the fourth pulley 26. Further, the partition plate interval variable mechanism 32 is configured to fix and connect the second pulley 22 and the fourth pulley 26 around the axis instead of fixing and connecting the first pulley 21 and the third pulley 25 around the axis. It may be. Further, the front partition plate 29 a may be fixed to the second belt 27 and the rear partition plate 29 b may be fixed to the first belt 23.

  (5) In the first embodiment, referring to FIG. 4, the partition plate interval variable mechanism 32 uses the handle 38 to rotate the cylindrical worm gear 36 with a finger to change the interval d. The interval d may be changed by rotating the cylindrical worm gear 36 using a motor instead of the handle 38. Further, a clamp that prevents the cylindrical worm gear 36 from rotating may be provided. Thereby, even when there is much vibration, the distance d can be prevented from shifting.

  (6) The inspection means in the first embodiment is composed of the X-ray source 8, the X-ray detector 9, and the control processing unit 10 to constitute a so-called X-ray fluoroscopic inspection apparatus. Is not limited. For example, a CT device or a tomosynthesis device (also referred to as a laminograph) may be used as the inspection means. Further, it may be an inspection means that measures the thickness of the subject using the X-ray transmittance. The inspection means may be a transmission inspection apparatus that uses γ-rays or microwaves instead of X-rays, a CT apparatus, a tomosynthesis apparatus, or the like. In addition, as an inspection means, using electromagnetic waves such as microwaves, infrared rays, visible light, ultraviolet rays, and X-rays, the size, shape, area, volume, mass, number, arrangement, structure, material, color, state of the article, Inspection means for inspecting foreign matter, scratches, and other physical quantities may be used.

  (7) In the first embodiment, the battery is inspected, but the subject is not limited to this, and may be a mass-produced product, a material, a crop, a fish catch, or the like.

  (8) In the first embodiment, the first conveyor 24 and the second conveyor 28 are disposed adjacent to each other, but may be adjacent to each other so that the pulleys or the belts are in contact with each other, and do not hinder the placement of the battery. Adjacent with a space in between.

  (9) In the first embodiment, a straight rectangular bar-shaped partition plate orthogonal to the transport direction is used. However, the partition plate may not be orthogonal, and may not be a straight rectangular bar. For example, the plate surface may be inclined from orthogonal according to the subject, or a partition plate having a concave portion or a convex portion suitable for the subject may be used.

  (10) Although the positioning mechanism 6 is provided in the first embodiment, the positioning mechanism may not be provided depending on the subject and the examination content.

DESCRIPTION OF SYMBOLS 1 ... X-ray inspection apparatus (article inspection apparatus), 2 ... Battery, 3 ... Conveyance mechanism (conveyor), 4 ... Feeding mechanism, 5 ... Inspection position (predetermined position), 6. .... Positioning mechanism, 7 ... X-ray (electromagnetic wave), 8 ... X-ray source, 9 ... X-ray detector, 10 ... Control processing unit, 11 ... Extraction mechanism, 21 ... First pulley 22 ... second pulley 23 ... first belt 24 ... first conveyor 25 ... third pulley 26 ... fourth pulley 27 ... first 2 belts, 28 ... second conveyor, 29a ... front partition plate, 29b ... rear partition plate, 30 ... motor, 31 ... belt, 32 ... partition plate interval variable Mechanism 33 ... Shaft 34 ... Bearing 35 ... Worm wheel 36 ... Cylindrical worm gear 37 ... Holding part, 38 ... handle, 39 ... bearing, 40 ... frame, 50 ... positioning block, 51 ... roller, 51a, 51b ... disc, 51c ... pulley, 52 ... Roller rotating mechanism, 52a ... Motor, 52b ... Torque limiter, 52c ... Pulley, 52d ... Belt, 53 ... Roller moving mechanism, 54 ... Arm, 55 ... Spring, 56 ... moving frame, 57 ... drive unit

Claims (2)

An article inspection apparatus having inspection means for performing inspections one after another using electromagnetic waves on a subject that is successively conveyed to a predetermined position,
A conveyor that transports the subject in a predetermined transport direction to the predetermined position, and further transports from the predetermined position;
It is a partition plate that is on the placement surface of the conveyor and partitions the subject in the transport direction, and a front partition plate and a rear partition plate that limit the position of the subject on both sides in the transport direction;
A partition plate interval variable mechanism for changing and setting a distance between the front partition plate and the rear partition plate;
The conveyor includes a first pulley, a second pulley, a first conveyor having a first belt stretched between the first pulley and the second pulley, and a coaxial with the first pulley. A second pulley comprising a third pulley having the same diameter and a fourth pulley having the same diameter and the same pulley as the second pulley, and a second belt stretched between the third pulley and the fourth pulley. The conveyor is arranged adjacent to the conveyor ,
The front side partition plate is fixed to the first belt and has a shape of a straight square bar perpendicular to the transport direction and has a length that covers the width of the first belt and the second belt, and the rear side partition plate Specifications cut plate has a length that covers the width of the second of said first belt is fixed in a straight square rod that is perpendicular to the transport direction of the belt and the second belt, the partition plate pitch adjusting mechanism has a mechanism to connect the said first pulley and said third pulley are coaxial connection angle around the axis variable,
A positioning mechanism comprising a positioning block, a roller, a rotating mechanism of the roller, and a moving mechanism of the roller arranged in the vicinity of the predetermined position , wherein the roller is applied to the subject conveyed to the predetermined position. by rotating by contact, the analyte slipping et allowed on the conveyor, having a positioning mechanism for positioning is brought into contact with at least said positioning block,
The positioning mechanism, said analyte is brought into contact with the partition plate of the positioning block and the front, or a positioning said analyte is brought into contact with the partition plate of the positioning block and the rear side An article inspection apparatus. The article inspection apparatus according to claim 1 ,
An article inspection apparatus having a block moving mechanism for moving the positioning block and changing a position where the subject is positioned.

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