JP2017206272A - Workpiece supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a workpiece supply device which accurately supplies workpieces at high speed so that an inspection device can inspect the workpieces at high speed.SOLUTION: A workpiece supply device includes: a stocker which stores labels L; transport means which transports each workpiece L to an inspection device; and transfer means which transfers each label L from the stocker to the transport means. The transport means includes: a suction part 32 which is disposed between transport conveyors 31a, 31b and suctions the label L; and protrusion parts 34a, 34b which are provided protruding on surfaces of conveyor belts 33a, 33b and rotate the label L suctioned by the suction part 32 so that the label L becomes parallel to a width direction D2 to correct inclination of the label L.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a workpiece supply device that supplies a workpiece to an inspection device that inspects a workpiece such as a label attached to a container or the like containing a beverage or a seasoning or a film-like packaging bag that contains food by image inspection. is there.

  Conventionally, it is generally inspected for images such as scratches and wrinkles on workpieces such as labels attached to containers and the like for containing beverages and seasonings and film-like packaging bags for containing food. Has been done. As such an inspection device, the work sequentially sent by a conveyor or the like is photographed with a camera, and the image photographed by the camera is compared with the image of the work registered in advance, so that the contents are different or the positional deviation is within an allowable range. When exceeding, what discharges | emits a workpiece | work as an error is known (for example, refer patent document 1).

JP, 2015-101405, A

  By the way, in an inspection apparatus that performs image inspection of a workpiece, when collating image data of a workpiece to be inspected with master data of a workpiece registered in advance, the workpiece in the image data is tilted or the like from a predetermined position. When the position is misaligned, the image data may be corrected by tilting the image data itself to correct the tilt of the workpiece in the image data to such an extent that the image data and the master data can be collated. It has been broken.

  However, when a workpiece is inspected at high speed using the inspection device as described above, if the inspection device performs the tilt correction as described above for a large number of image data, the processing of the inspection device is delayed, so the workpiece supply capability There was a problem that even if the improvement was made, it was not reflected in the inspection ability.

  Therefore, a technical problem to be solved in order to supply the workpiece at high speed and accurately occurs so that the inspection apparatus can inspect at high speed, and the present invention aims to solve this problem.

  The present invention is proposed in order to achieve the above object, and the invention according to claim 1 transports the work along a transport direction to a stocker that houses the work and an inspection device that inspects the work. In a workpiece supply apparatus including a conveyance unit and a transfer unit that transfers the workpiece from the stocker to the conveyance unit, the conveyance unit is disposed upstream in the conveyance direction with respect to the inspection apparatus. A conveyance unit; an adsorption unit disposed in the vicinity of the conveyance unit; and an inclination correction unit that protrudes on the surface of the conveyance unit so as to come into contact with the workpiece. The inclination correction unit includes the adsorption unit. Provided is a workpiece supply device that rotates the workpiece adsorbed on the conveyance unit so as to be parallel to a width direction perpendicular to the conveyance direction.

  According to this configuration, with the suction unit sucking the workpiece, the tilt correction unit rotates the workpiece so as to be parallel to the width direction and corrects the workpiece tilt so that the workpiece is in the inspection device in the correct orientation. Therefore, the inspection device can correct the image data of the workpiece taken in consideration of the tilt of the workpiece or correct the workpiece in a short time because there is very little displacement of the workpiece. The data can be collated smoothly with the master data of the workpiece registered in advance. Note that “the suction part sucks the work onto the transport part” means a state where the work is sucked and held in contact with the transport part, and a state where the work is sucked and held with a slight gap from the transport part. including.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the tilt correction unit provides a workpiece supply device that is a plurality of protrusions arranged in parallel in the width direction.

  According to this configuration, the work is positioned in parallel with the width direction and supplied to the inspection device by correcting the inclination of the work with the plurality of protrusions correcting the work in the state in which the work is picking up the work. Since the image data obtained by photographing the workpiece can be corrected in a short time because the correction of the workpiece inclination is omitted and the positional deviation of the workpiece is extremely small, the image data obtained by photographing the workpiece is registered in advance. The master data of the workpiece can be collated more smoothly.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the invention, the conveying means is disposed on a side of the conveying portion and is formed in a tapered shape toward the inner side in the width direction. Provided is a workpiece supply device including a width direction restricting portion having a guide surface.

  According to this configuration, even when the workpiece is transferred so as to protrude outward in the width direction from the conveyance portion, the conveyance surface while the guide surface of the width direction regulating portion slides the workpiece in the width direction. By sliding upward, the workpiece is supplied to the inspection device without being displaced in the width direction, so the inspection device can more smoothly collate image data obtained by photographing the workpiece with the master data of the workpiece registered in advance. can do.

  According to a fourth aspect of the invention, in addition to the configuration of the first aspect of the invention, the transfer means sucks the work, picks it up from the stocker, and transfers the work to the conveying means. A workpiece supply device is provided that delivers the workpiece by dropping it.

  According to this configuration, when the transfer means delivers the workpiece to the conveyance means without touching the conveyance means, the workpiece is prevented from being tilted due to the moment when the transfer means contacts the conveyance means during the workpiece delivery. Therefore, the inspection apparatus can smoothly collate image data obtained by photographing the workpiece with master data of the workpiece registered in advance.

  According to a fifth aspect of the invention, in addition to the configuration of the fourth aspect of the invention, the transfer means includes a plurality of external gears each having a suction hand for sucking and holding the workpiece, and the plurality of external gears as predetermined. And a friction member that is disposed so as to be able to come into contact with the surplus workpiece that is attracted and held by the suction hand and that scrapes off the surplus workpiece.

  According to this configuration, since the external gear revolves in the internal gear, the suction hand circulates in a predetermined locus, and the suction hand provided on the external gear transfers the work to a predetermined position. It can be transferred to the conveying means at high speed and accurately. Moreover, it can suppress that a surplus workpiece | work is supplied to an inspection apparatus, when a friction member rubs the workpiece | work adsorb | sucked by the adsorption | suction hand exceeding a predetermined number of sheets.

  According to a sixth aspect of the present invention, in addition to the configuration of the first aspect of the present invention, a plurality of the transfer means are installed along the conveying direction of the conveying means. I will provide a.

  According to this configuration, it is possible to increase the number of sheets supplied to the inspection device according to the number of transfer means installed.

  In the present invention, since the workpiece is not tilted by the tilt correction unit correcting the tilt of the workpiece while the chuck is sucking the workpiece, the inspection device is image data obtained by photographing the workpiece. The correction in consideration of the inclination of the workpiece is omitted, and since the positional deviation of the workpiece is extremely small, the correction can be performed in a short time, and the master data of the workpiece registered in advance can be collated smoothly.

The top view which shows the workpiece inspection apparatus to which the workpiece supply apparatus which concerns on one Example of this invention is applied. The side view which shows the workpiece | work inspection apparatus of FIG. The side view which shows a transfer apparatus. FIG. 6 is a partially omitted plan view showing a conveying means. It is a figure which shows a suction hand, (a) is a side view, (b) is a longitudinal cross-sectional view. The schematic diagram which shows the locus | trajectory of a suction hand. The schematic diagram which shows a mode that the width direction control part correct | amends the position shift of the width direction of a label. The schematic diagram which shows a mode that a protrusion correct | amends the inclination of a label.

  In order to achieve the object of supplying a workpiece at a high speed and accurately so that the inspection device can inspect at high speed, the present invention provides a stocker for accommodating the workpiece and an inspection device for inspecting the workpiece along the conveyance direction. In the workpiece supply apparatus including the transfer means for transferring the workpiece and the transfer means for transferring the workpiece from the stocker to the transfer means, the transfer means is a transfer section disposed on the upstream side in the transfer direction with respect to the inspection apparatus. And a suction part arranged in the vicinity of the transport part, and an inclination correction part projecting on the surface of the transport part so as to be able to come into contact with the workpiece. This was realized by rotating the workpiece so that it was parallel to the width direction perpendicular to the conveying direction.

  First, a workpiece inspection apparatus 1 to which a workpiece supply apparatus 10 according to an embodiment of the present invention is applied will be described with reference to the drawings. In the following examples, when referring to the number, numerical value, quantity, range, etc. of the constituent elements, the specific number is used unless otherwise specified and clearly limited to a specific number in principle. It is not limited, and it may be a specific number or more.

  In addition, when referring to the shapes and positional relationships of components, etc., those that are substantially similar to or similar to the shapes, etc., unless otherwise specified or otherwise considered in principle to be apparent. Including.

  In addition, the drawings may be exaggerated by enlarging characteristic portions in order to make the features easy to understand, and the dimensional ratios and the like of the constituent elements are not always the same. In the cross-sectional view, hatching of some components may be omitted in order to facilitate understanding of the cross-sectional structure of the components.

  FIG. 1 is a plan view showing the workpiece inspection apparatus 1. FIG. 2 is a side view showing the workpiece inspection apparatus 1. In FIG. 1, a part of the configuration is omitted for convenience of explanation.

  The workpiece inspection apparatus 1 inspects the label L attached to a container such as a beverage or a seasoning for the presence or absence of damage such as scratches on the surface of the label L, wrinkles, and corners. It is a summary. The workpiece inspection apparatus 1 includes a workpiece supply apparatus 10, an image inspection apparatus 2, and a product discharge apparatus 3. Note that the inspection target of the workpiece inspection apparatus 1 is not limited to the label L described above, and may be, for example, a film-like packaging bag that contains food.

  The workpiece supply apparatus 10 supplies a large number of labels L to the image inspection apparatus 2 one by one. Two workpiece supply devices 10 are provided along the conveyance direction D1 of the label L. Note that the number of workpiece supply devices 10 may be set so that the workpiece supply device 10 supplies workpieces so that the workpiece inspection speed of the image inspection device 2 can be maximized, for example, one workpiece supply device. When the work supply speed of 10 is set to be equal to or higher than the work inspection speed of the image inspection apparatus 2, the number of work supply apparatuses 10 may be one. Details of the workpiece supply device 10 will be described later.

  The image inspection apparatus 2 includes an activation sensor 2a and a suction conveyor 2b. The suction conveyor 2b has a conveyor belt 2c formed with a large number of holes and a blower 2d connected to the conveyor belt 2c, and conveys the label L in a state where the label L is adsorbed to the conveyor belt 2c.

  When a start sensor (not shown) detects the front end of the label L conveyed by the suction conveyor 2b, the image sensor 2a captures the label L and sends the captured image data to the control device 4 described later. The control device 4 compares the master data of the label L stored in advance with the image data captured by the image sensor 2a, and determines whether or not the label L is damaged.

  The product discharge device 3 includes an error discharge unit 3a, a switching unit 3b, a stacking conveyor 3c, 3d, a product discharge unit 3e, and a product transfer conveyor 3f.

  The error discharge unit 3a is installed at the downstream end of the suction conveyor 2b, and drops the label L determined by the control device 4 as NG (error) into the box 3g.

  The stacked conveyors 3c and 3d stack the non-defective labels L while counting them. When a predetermined number (for example, 500) of labels L are stacked on one of the stacking conveyors 3c and 3d, the switching unit 3b moves up and down, and the transport destination of the label L is set on the other stacking conveyors 3c and 3d. Can be switched. The non-defective labels L collected by a predetermined number of sheets are discharged out of the apparatus by the product conveying conveyor 3f through the product discharging portion 3e.

  The operation of the workpiece inspection device 1 is controlled by the control device 4. The control device 4 controls each component constituting the workpiece inspection device 1. The control device 4 is a computer having, for example, a CPU and a memory. Note that the function of the control device 4 may be realized by controlling using software or may be realized by operating using hardware.

  Next, the structure of the workpiece supply apparatus 10 will be described based on the drawings. FIG. 3 is a side view showing the stocker 20 and the transfer device 40. FIG. 4 is a partially omitted plan view showing the conveying means 30. FIG. 5A is a side view showing the suction hand 41, and FIG. 5B is a longitudinal sectional view showing the suction hand 41. FIG. 6 is a schematic diagram illustrating the trajectory of the suction hand 41. FIGS. 7A to 7D are schematic views showing how the protrusion 34 corrects the inclination of the label L. FIG.

  The workpiece supply apparatus 10 includes a stocker 20, a transport unit 30, and a transfer unit 40.

  The stocker 20 is formed in a rectangular tube shape that is opened up and down, and a large number of labels L can be stacked and accommodated therein. The stocker 20 is formed to be slightly larger than the label L, and the position of the label L in the stocker 20 is prevented from being greatly displaced. The stocker 20 is disposed obliquely with respect to the vertical direction, the label L is inserted from the upper opening 20a, and the surface of the label L is exposed to the lower opening 20b. A claw portion (not shown) provided in the lower opening 20b of the stocker 20 hooks the label L accommodated in the stocker 20 to prevent the stocker 20 from being accidentally discharged to the outside.

  The transport means 30 includes two transport conveyors 31 disposed with a predetermined gap and an adsorption unit 32.

  The conveyor 31 extends from the lower side of the transfer means 40 to the image inspection apparatus 2 along the conveying direction D1. A large number of protrusions 34 are provided on the surface of the conveyor belt 33 of the conveyor 31. Two transport conveyors 31 are arranged in parallel in the width direction D2 perpendicular to the transport direction D1. Hereinafter, when two transport conveyors, conveyor belts, or protrusions are collectively referred to, only numbers are attached, and two transport conveyors, two conveyor belts, or two protrusions arranged in the width direction D2 are indicated. When distinguishing each, it attaches | subjects a and b after a number, and makes it a reference code.

  The suction part 32 is disposed between the conveyors 31a and 31b. The suction part 32 is connected to the suction blower 32a, and sucks the back surface of the label L onto the conveyor belt 33 through a number of intake holes drilled in the front surface 32b. Preferably, the upper surface 32b of the suction part 32 is disposed slightly above the conveyor belts 33a and 33b. Thereby, the adsorption | suction part 32 can adsorb | suck the label L reliably. Moreover, the adsorption | suction part 32 is not limited to what hold | maintains the label L in the state which contacted the conveyor belt 33, Even if it hold | maintains the label L with a slight gap between the conveyor belts 33, I do not care. In addition, the adsorption | suction part 32 is not limited to what was fixed, The thing which can be conveyed in the state which adsorb | sucked the label L like the adsorption | suction conveyor 2c may be used. The conveyance speed is set to be lower than that of the conveyance conveyor 31. In addition, the installation position of the adsorption | suction part 32 should just be the vicinity of the conveyance conveyors 31a and 31b, and may be between the conveyance conveyors 31 or a side.

  The protrusion 34a protruding from the conveyor belt 33a and the protrusion 34b protruding from the conveyor belt 33b are juxtaposed in the width direction D2. The protrusion 34 is formed in a hook shape extending in the width direction D2. The interval between the transfer spaces S defined by the adjacent protrusions 34 in the transport direction D1 is set according to the size of the label L. For example, if the label L has a short dimension of 35 mm, the transfer space S The interval between the portions 34 is set to 100 mm. For example, the protrusion 34 is preferably made of rubber such as urethane rubber. The height of the protrusion 34 may be a dimension that allows the protrusion 34 to contact the label L in a state in which the suction part 32 sucks the label L toward the conveyor belt 33. Reference numeral 35 denotes a suction conveyor that holds the surface of the label L by suction from the transport conveyor 31 and transfers it to the suction conveyor 2c.

  In addition, the transport conveyor 31 further includes a width direction restricting portion 36 disposed slightly outside the transport conveyor 31. The width direction restricting portion 36 is formed with a guide surface 36a formed in a taper shape so that the thickness gradually becomes thinner toward the inner side in the width direction D2 when viewed in the transport direction D1.

  The transfer means 40 includes a suction hand 41. The suction hand 41 includes a vacuum line 41a, a suction cup 41b connected to the vacuum line 41a, and a column 41c that supports the vacuum line 41a and the suction cup 41b.

  The vacuum line 41a passes through the vicinity of the center O1 of the external gear 42 and is connected to a vacuum source (not shown).

  The suction cup 41b is designed to be smaller than the label L in order to adsorb the surface of the label L with a negative pressure. Two suction cups 41b are provided along the width direction D2. The number of suction cups 41 b installed on one suction hand 41 can be arbitrarily changed according to the shape and size of the label L. If the label L is long in the width direction D2, a plurality of suction cups 41b are preferably provided along the width direction D2. Reference numeral 41d denotes a suction cup disposed in the center of the column 41c in order to suppress flapping of the label L.

  The column 41c is extended along the width direction D2. The column 41c is rotatable around a rotation axis A parallel to the width direction D2. The column 41c is attached to the external gear 42 at a predetermined distance from the center O1 of the external gear 42 so that the suction cup 41b can contact the label L in the stocker 20 when the external gear 42 is closest to the stocker 20. It has been.

  The three external gears 42 are accommodated in the internal gear 43. When the external gear 42 rotates by the driving device 42a connected to the center O1 of the external gear 42, the external teeth of the external gear 42 engage with the internal teeth of the internal gear 43, and the internal gears in the direction of the arrow in FIG. Revolves around the center O2 of the gear 43. The number of external gears 42 is not limited to three. The number of teeth of the internal gear 43 is set to a value obtained by multiplying the number of teeth of the external gear 42 by the number n of the external gears 42, so that the trajectory of the external gear 42 has a concave shape on each side and n vertices. The interference hand 41 is prevented from interfering with each other when the external gear 42 revolves.

  A negative pressure is supplied to the suction cup 41b in a part of the trajectory in which the external gear 42 revolves in the internal gear 43. Specifically, when the external gear 42 reaches the point P1 that is closest to the stocker 20, negative pressure starts to be supplied to the suction cup 41b. When the external gear 42 reaches a point P3 that is closest to the conveyor 31 after passing through a point P2 that is symmetrical to the point P1, the negative pressure supply to the suction cup 41b is stopped. The position of the external gear 42 revolving inside the internal gear 43 can be calculated by detecting the rotation angle of the external gear 42 by an angle detection device mounted on the drive device 42a. When an induction motor is employed as the drive source of the drive device 42a, it is conceivable to employ a cam positioner or a cam switch as the angle detection device. When a servo motor is employed as the drive source of the drive device 42a, the rotation angle of the external gear 42 may be detected using an encoder signal of the servo controller.

  The transfer means 40 further includes a friction member 44. The friction member is composed of a suction cup or a friction member, and is disposed at a position symmetrical to the stocker 20.

  The driving gear of the suction conveyor 2b, the driving gear of the transport conveyor 31, and the driving device 42a that rotates the external gear 42 are synchronized by a timing belt (not shown).

  Next, the operation of the workpiece supply device 10 will be described.

  First, when the external gear 42 revolves in the internal gear 43 and reaches the point P1 that is closest to the stocker 20, negative pressure is supplied to the suction cup 41b, and the suction cup 41b sucks and holds the label L accommodated in the stocker 20. .

  When the external gear 42 rotates and revolves in the internal gear 43 and reaches the point P2 in a state where the suction hand 41 holds the label L by suction, the friction member 44 comes into contact with the label L. Thereby, when the suction hand 41 sucks a label L exceeding a predetermined number (for example, one sheet), the friction member 44 scrapes off an excessive work, and the label L exceeding the predetermined number is transferred to the conveying means 30. Avoid that.

  When the external gear 42 reaches the point P3 closest to the conveyor 31 as shown in FIG. 7A, the negative pressure supply to the suction cup 41b is stopped and the suction between the suction cup 41b and the label L is released. Then, by raising the pressure in the vacuum line 41 a to atmospheric pressure and breaking the vacuum, the label L falls into the transfer space S by its own weight and is delivered to the transport means 30. When the suction between the suction cup 41b and the label L is released, the label L is reliably transferred into the transfer space S because the label L is positioned below the upper end of the protrusion 34.

  When the suction hand 41 delivers the label L to the transport means 30, the suction hand 41 separates the label L with a slight gap secured between the suction hand 41 and the transport conveyor 31. Thereby, it can avoid that the adsorption | suction hand 41 contacts the conveyance conveyor 31 via the label L, and damages the label L.

  Further, as illustrated in FIG. 7B, the label L is not sucked by the suction unit 32 immediately after the suction hand 41 delivers the label L to the transport unit 30. Therefore, when the label L is transferred to the transport conveyor 31 in the width direction D2, the guide surfaces 36a of the width direction restricting portions 36 disposed at both ends of the transport conveyor 31 cause the label L to move in the width direction. By sliding inward of D2, it is suppressed that the label L protrudes from the conveyor 31.

  When the labels L are transferred from the two transfer devices 40 arranged along the transfer direction D1 to the transfer means 30, the supply capacity of the label L can be doubled from that of the transfer device 40 alone. The label L transferred from one of the two transfer devices 40 and the label L transferred from the other transfer device 40 are transferred to the adjacent transfer space S, that is, the transfer device 40. The labels L respectively supplied from are arranged on the conveyor 31 alternately.

  As shown in FIG. 7C, the label L delivered to the transport means 30 is held by suction by the suction portion 32 so that the label L is slightly lifted from the transport conveyors 31a and 31b or transported. It slides on the conveyors 31a and 31b.

  Thereafter, the protrusions 34a and 34b arranged in parallel along the width direction D2 push the label L toward the transport direction D1, whereby the inclination of the label L is corrected. Specifically, as shown in FIG. 8A, when the label L is sucked into the suction portion 32 while being inclined with respect to the width direction D2, as shown in FIG. Comes into contact with the label L in advance, and when the label L is continuously pressed in the transport direction D2, the label L starts to rotate gradually with the region sucked by the suction portion 32 as a fulcrum. Thereafter, as shown in FIG. 8 (c), the label L comes into contact with the other protrusion 34, and the longitudinal direction of the label L becomes parallel to the width direction D2, and thereafter, as shown in FIG. 8 (d). The label L is transported along the transport direction D1.

  When the label L is transported along the transport direction D1 so as to be caught by the protrusions 34a and 34b after the inclination and the positional deviation in the width direction D2 are corrected, the suction by the suction unit 33 is released, and image inspection is performed. It is conveyed to the device 2.

  The label L transported to the downstream end of the transport conveyor 31 is indirectly delivered from the transport conveyor 31 to the suction conveyor 2b via the suction conveyor 35 that sucks and holds the surface of the label L.

  In this way, in the workpiece supply apparatus 10 according to the present invention, the protrusions 34a and 34b are arranged so that the longitudinal direction of the label L and the width direction D2 are parallel with the suction portion 32 sucking the label L. By rotating the label L so as to be parallel to the width direction D2 and correcting the inclination of the label L, the label L is neatly positioned and supplied to the inspection device. Therefore, the image inspection device 2 captures the label L. The correction of the image data thus omitted or the displacement of the workpiece is extremely small, so that the correction can be performed in a short time, and the image data of the label L and the master data registered in advance can be collated smoothly.

  The suction hand 41 is not limited to the one that circulates in the order of the points P1, P2, and P3, and may be one that circulates in the order of the points P1, P3, and P2.

  The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

  The workpiece supply device according to the present invention can be applied to supply of a workpiece to a device for applying a label L to a container or the like or a device for filling a film-like packaging bag with food, etc. It is.

DESCRIPTION OF SYMBOLS 1 ... Work inspection apparatus 2 ... Image inspection apparatus (inspection apparatus)
2a ... Image sensor 2b ... Adsorption conveyor 2c ... Conveyor belt 2d ... Blower 3 ... Product discharge device 3a ... Error discharge unit 3b ... Switching unit 3c, 3d ... Stage Product conveyor 3e ... Product discharge part 3f ... Product conveyor 3g ... Receptacle box 10 ... Work feeding device 20 ... Stocker 20a ... Upper opening 20b ... Lower opening 30 ... Conveyance means 31, 31a, 31b ... Conveyor 32 ... Adsorption part 32a ... Adsorption blower 33, 33a, 33b ... Conveyance belt 34, 34a, 34b ... Protrusion (inclination correction part)
35 ... Suction belt 36 ... Width direction restricting part 40 ... Transfer means 41 ... Suction hand 41a ... Vacuum line 41b ... Suction cup 41c ... Column 41d ... Suction cup 42 .. External gear 43 ... Internal gear 44 ... Friction member D1 ... Conveying direction D2 ... Width direction L ... Label O1 ... Center of external gear O2 ... (Internal gear) Center of S ・ ・ ・ Transfer space

Claims (6)

A stocker that accommodates the workpiece, a conveyance unit that conveys the workpiece along a conveyance direction to an inspection device that inspects the workpiece, and a transfer unit that transfers the workpiece from the stocker to the conveyance unit. In the work supply device,
The conveying means is
A transport unit disposed on the upstream side in the transport direction with respect to the inspection device;
An adsorbing part arranged in the vicinity of the conveying part;
An inclination correction unit provided on the surface of the transport unit so as to be able to contact the workpiece;
With
The tilt correction unit rotates the workpiece adsorbed on the conveyance unit by the adsorption unit so as to be parallel to a width direction perpendicular to the conveyance direction.   The workpiece supply apparatus according to claim 1, wherein the inclination correction unit is a plurality of protrusions arranged in parallel in the width direction.   The said conveyance means is arrange | positioned at the side of the said conveyance part, and is provided with the width direction control part which has a guide surface formed in the taper shape toward the inner side of the said width direction. 2. The workpiece supply apparatus according to 2.   4. The workpiece supply apparatus according to claim 1, wherein the transfer unit sucks and removes the workpiece from the stocker and drops the workpiece to the transport unit. The transfer means is
A plurality of external gears each having a suction hand for holding the workpiece by suction;
An internal gear that revolves the plurality of external gears along a predetermined path;
A friction member that is disposed so as to be able to contact the surplus workpiece held by the suction pad, and scrapes off the surplus workpiece;
The work supply apparatus according to claim 4, further comprising:   6. The workpiece supply apparatus according to claim 1, wherein a plurality of the transfer means are installed along a transfer direction of the transfer means.

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