JP4095640B2 - Inspection method and inspection apparatus for injection molded products. - Google Patents

Description

  The present invention relates to an injection molding product inspection method and an inspection apparatus for determining whether there is a defect on the appearance of an injection molded product and determining whether it is good or bad.

Conventionally, an inspection method for injection-molded products is disclosed in Patent Document 1 below.
The inspection method disclosed in Patent Document 1 has the following content as a problem to be solved.
That is, it is necessary to inspect the appearance of the injection-molded product after the injection molding, for example, whether the product is not thinned, excessive burrs are left, or other defects are generated.

  As the inspection method, (b) a method in which an operator visually inspects the appearance after removing a large number of products molded simultaneously from the mold, and (b) a part feeder or the like for the removed product. The method used to determine the quality by determining the presence or absence of defects on the appearance of each product using an automatic inspection device after re-arranging using the former, was processed in the case of the former (b) visual inspection manually. Insufficient inspection and a lot of man-hours and man-hours for inspections. In addition, there is a possibility that defects may be missed during visual inspection of a large number of products, resulting in unstable inspection quality. In addition to the above problems, there is a problem that a large cost is required for the inspection.

  On the other hand, in the case of the latter inspection method (b), it is necessary to provide a mechanism for aligning each product that has been separated from the mold by means of a parts feeder, etc., and the cost for the alignment mechanism and parts feeder, etc. In addition, if trouble occurs on the transport path during alignment transport, there is a problem that the inspection temporarily stops there, and further, the processing capability is restricted in inspection using this alignment mechanism, automatic inspection device, etc. In order to process a large amount of water, a lot of equipment is required. Therefore, this method also has a problem of requiring a large cost.

Therefore, in the inspection method of Patent Document 1, after injection molding, a product is held in an exposed state in a mold, and each product is imaged using an imaging device in that state, and the imaging result is subjected to image processing. Are compared with the imaging results of the non-defective products stored in advance, and defects such as lack of products and excessive occurrence of burrs are discriminated to determine pass / fail.
According to the inspection method of Patent Document 1, the appearance inspection can be performed without removing the injection-molded product from the mold, and the inspection ability can be greatly enhanced as compared with the visual observation by the operator. Moreover, the cost for inspection can be reduced and the inspection quality can be improved.

By the way, in carrying out this inspection method, the image pickup device is relatively moved along the mold, and the image pickup device is positioned at a position where the aim of the image pickup device is properly matched to each of the image pickup target products. There is a need to do.
As a means for positioning, generally, an image pickup apparatus or a mold, usually a mold is moved by an automatic transfer device (robot), and each of the products is properly aligned with the aim of the image pickup apparatus. In order to position the automatic transfer device, the automatic transfer device is taught to make the automatic transfer device remember the movement.

However, if all the movements of the automatic transfer device are memorized in advance by teaching, it takes a lot of time and labor, and each time the product shape, type and arrangement pattern are different, the automatic transfer device is adapted to this. It is necessary to memorize the movements, and as a whole the labor is extremely troublesome.
Also, when all the movements of the automatic transfer device are memorized only by teaching, the time from one imaging to the next imaging becomes longer and the time required for the inspection of the product as a whole becomes longer. The problem arises that the value cannot be made sufficiently high.

JP 2003-276069 A

The present invention is based on the above situation, and when inspecting the quality of each injection-molded product by an imaging device and inspecting its quality, the inspection can be quickly performed at a high speed, thereby enhancing the inspection capability. The present invention has been made for the purpose of providing an inspection method and an inspection apparatus for an injection molded product.
Another object of the present invention is to enable inspection of a large product with high accuracy.

  Thus, according to the first aspect of the present invention, a plurality of simultaneously injection-molded products are held in the mold after the mold is opened, and the imaging device facing the mold is moved relative to the mold in that state. In the injection molding product inspection method for determining the quality of a product by performing imaging for each product and determining the quality of the product by positioning at each imaging position for aiming at each of the products. When inspecting a plurality of the products arranged at a predetermined interval in the first direction, the imaging device has the detected portions arranged at intervals equal to the arrangement intervals of the products in the first direction. A first reference member for positioning an imaging position in the first direction and a relative movement in the first direction with respect to the first reference member, and detecting the detected portion of the first reference member, thereby the imaging Imaging in the first direction for each product by the device It provided a first position detecting sensor for positioning the location, and performs imaging by the imaging device for each said product in said first direction.

  According to a second aspect of the present invention, a plurality of simultaneously injection-molded products are held in an exposed state in the mold after opening the mold, and an imaging device facing the mold is moved relative to the mold in that state. In a method for inspecting an injection molded product that is positioned at an imaging position where each product is aimed and imaged for each product and the quality of the product is determined by image processing, imaging is performed for a single product. A plurality of imaging portions to be subjected to the set second direction, and the imaging device performs imaging for each of the fraction portions, and the detected portions arranged corresponding to the fraction portions, respectively. A second reference member for positioning the imaging position in the second direction by the imaging device, and a relative movement in the second direction with respect to the second reference member to detect the detected part. The imaging position in the second direction by the imaging device Provided a second position detection sensor to position performs one entire imaging product by said one after another imaging each fractionation section by the imaging device, and judging the quality of the product.

  According to a third aspect of the present invention, in any one of the first and second aspects, the detected portion is a through hole.

  A fourth aspect of the present invention relates to an inspection apparatus, in which a plurality of simultaneously injection-molded products are held in an exposed state by a mold after opening the mold, and an imaging apparatus facing the mold in that state is relative to the mold. In an inspection apparatus for an injection molded product, which is moved and positioned at an imaging position where each product is aimed and imaged for each product and image quality is determined by image processing, For detecting the imaging position in the first direction by the imaging device, having detected parts arranged at intervals equal to the arrangement intervals of the plurality of products arranged at predetermined intervals in the set first direction. The first reference member and the first reference member move relative to the first reference member in the first direction, and detect the detected portion of the first reference member to detect the detected portion of the first reference member in the first direction for each product. First position detection to position the imaging position Is provided with a sensor, characterized in that in the first direction are none on the product so as to perform imaging by the imaging device.

  According to a fifth aspect of the present invention, a plurality of simultaneously injection-molded products are held in an exposed state in the mold after the mold is opened, and an imaging device facing the mold in that state is moved relative to the mold. In an inspection apparatus for an injection molded product, which is positioned at an imaging position where each product is aimed and is imaged for each product and the quality of the product is determined by image processing, imaging is performed for a single product. A plurality of fractions in the second direction in which an imaging part to be performed is set, and imaging is performed by the imaging device for each of the fractional parts, and a detected object arranged corresponding to each of the fractional parts A second reference member for positioning the imaging position in the second direction by the imaging device having a part, and a relative movement in the second direction with respect to the second reference member to detect the detected part Positioning the imaging position in the second direction by the imaging device And a second position detection sensor for picking up the whole image of one product by successively picking up each fraction portion with the image pickup device and determining whether the product is good or bad. And

Effects and effects of the invention

  As described above, according to the present invention, when an image of a product is imaged by an imaging device and the appearance of the product is inspected, at least in the set first direction, the detected portions are arranged at intervals equal to the product arrangement interval. Using the first reference member and the first position detection sensor for detecting the detected portion, the relative imaging position in the first direction by the imaging device is positioned, and the product is imaged by the imaging device for each product. According to the present invention, at least in the first direction, the position of the image picked up by the image pickup device is detected by the first reference member and the first position detection sensor. It is possible to perform imaging by positioning, and therefore it is not necessary to perform teaching for causing the automatic transfer device to learn movement in this first direction. It can be reduced.

In the positioning using the first reference member and the first position detection sensor, the imaging device takes a product, moves to the next product, positions the product, and performs the next imaging. The time can be shortened, the inspection speed can be increased, and the inspection capability can be increased.
Moreover, since at least a part of teaching can be omitted, the cost required for this can be reduced.

  Here, the first reference member can be fixed in the first direction and the corresponding first position detection sensor can be moved together with the imaging device, but the first reference member is moved integrally with the imaging device. In addition, the first position detection sensor can be provided in a fixed position in the first direction.

When the size of the product held by the mold is large, it may be difficult to image one entire product at a time.
However, by separating the imaging device from the product, it is possible to capture the image of the entire product at one time. As the number of pixels decreases, the entire captured image becomes blurred and details are not clear.
Therefore, when it is attempted to check whether a product has a plurality of holes and the holes are closed or open, the inspection cannot be performed with high accuracy.

  Here, in the second and fifth aspects of the present invention, a plurality of fractions are set in the second direction in which an imaging part to be imaged is set for a single product, and imaging is performed by the imaging device for each fractional part. And a second reference member for the second direction having a detected portion arranged corresponding to the fractionated portion, and a corresponding second position detection sensor, and a second position detection sensor by the second position detection sensor. 2 By detecting each detected part of the reference member, the imaging position in the second direction by the imaging device is positioned, and each fractional part is imaged one after another, and the entire product is imaged. According to the present invention, even if the size of one product is large, it is possible to clearly pick up the details up to the details, and the appearance inspection of the product with high accuracy. It can be performed.

  Also in the present invention, when imaging each fraction portion, since the positioning of the imaging device can be performed using the second reference member and the second position detection sensor without using teaching with respect to the automatic transfer device, It is possible to reduce the labor and time required to apply teaching to the automatic transfer device for imaging each fraction portion, and it is possible to quickly capture the fraction portion in a short time.

Here, the second reference member can be fixed in the second direction, and the second position detection sensor can be moved together with the imaging device. Conversely, the second reference member can be moved together with the imaging device. In addition, the second position detection sensor can be provided in a fixed position in the second direction.
It should be noted that the appearance inspection of the product can be performed in combination with claims 1 and 4 and claims 2 and 5. In this case, the first direction can be set as the vertical direction and the second direction can be set as the horizontal direction.

  In the present invention, the detected portion can be a through hole. By setting the detected part as such a through-hole, detection by the position detection sensor for the detected part can be made accurate and easy.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an inspection apparatus 10 for an injection molded product (here, a rubber product) together with an injection molding apparatus.
The injection molding apparatus includes an injection apparatus 12, a mold clamping apparatus 14, and a mold set 16.
The injection device 12 plasticizes and fluidizes the rubber material by rotating the screw, and pushes the rubber material filled in the injection pot 18 into the left direction in the figure by the plunger. And an injection cylinder 22 for injection.

The mold set 16 is divided into a pair of outer molds 24 and 26 as molds and a plate-shaped middle mold 28 as a mold.
Here, the rubber material is injected into the molding cavity of the mold set 16 by the injection cylinder 22 while the mold set 16 is clamped by the mold clamping device 14.
The injected rubber material is heated and pressurized for a predetermined time and vulcanized into a product shape.
After this vulcanization molding, the mold set 16 is separated into the outer mold 26 and the other outer mold 24 and the middle mold 28. Further, the middle die 28 is protruded rightward in the drawing by the ejector 29 and is separated from the outer die 24 at this time.

In this embodiment, all of the vulcanized rubber product 15 (see FIGS. 2 and 3) is held by the plate-shaped middle mold 28 after mold separation.
Each rubber product 15 held in the middle mold 28 is inspected by the inspection device 10.

The configuration of the inspection apparatus 10 is shown in detail in FIGS.
As shown in FIG. 2, the inspection apparatus 10 includes a base 30 that is fixed in position, a transverse member 32 that traverses the base 30 in the lateral direction of the left and right in FIG. 2, and the transverse member 32. Thus, an automatic transfer device (robot) 38 for transferring a CCD camera (imaging device) 36, which will be described later, is configured.

The elevating member 34 has a pair of holding plates 40 that hang downward in parallel with each other, and a pair of CCD cameras 36 are held downward on the inner surfaces of the holding plates 40.
These CCD cameras 36 are provided so as to be positioned on both sides of the middle mold 28 protruded by the ejector 29, and a mirror device 42 in which the rubber product 15 held by the middle mold 28 is attached to the lower end portion of the holding plate 40. To capture images.
The mirror device 42 includes a mirror 44 (see FIG. 2) and a lighting device for illuminating the rubber product 15.

As shown in FIGS. 2 and 4, the rubber product 15 is held in the middle mold 28 in an aligned state in four rows and six rows, and both end faces are exposed from the middle die 28.
On the other hand, a vertical plate-shaped reference member (first reference member) 46 serving as a reference for positioning the CCD camera 36 in the vertical direction is provided on the lifting member 34 so as to be integrally lifted and lowered. The reference member 46 is provided with through-holes 48 to be detected parts in a line aligned in the same pitch as the vertical pitch P _{1 of} the rubber product 15.

Correspondingly, a photoelectric sensor (first position detection sensor) 50 for positioning the CCD camera 36 in the vertical direction by detecting the hole 48 of the reference member 46 in the transverse member 32 is connected to the transverse member 32. It is provided in a state of traversing left and right as a unit.
Here, the photoelectric sensor 50 is fixed in position in the vertical direction with respect to the reference member 46.

This photoelectric sensor 50 has a U-shaped arm.
Here, the photoelectric sensor 50 is a light transmission type photoelectric sensor, and a light projecting portion is provided on one of a pair of arms sandwiching the reference member 46, and a light receiving portion is provided on the other, and light emitted from the light projecting portion. Depending on whether or not the light is received by the light receiving portion, the hole 48 as the detected portion provided in the reference member 46 is detected.

In this embodiment, the inspection apparatus 10 performs an appearance inspection of the rubber product 15 as follows.
FIG. 5 shows a state in which the elevating member 34 in the inspection apparatus 10 is located at the ascending end.
In this state, the elevating member 34 is lowered from the ascending end, and when the lowermost hole 48-1 of the holes 48 reaches the position of the photoelectric sensor 50 as shown in FIG. -1 is detected, and the pair of CCD cameras 36 held by the elevating member 34 are positioned.
At this time, the pair of CCD cameras 36 aim at the position where the uppermost rubber product 15-1 in the leftmost column in FIGS. 6B and 4 is imaged via the mirror device 42, that is, the rubber product 15-1. Will be in the correct state. As such, the position of the hole 48-1 is predetermined.

The rubber product 15-1 is imaged by the CCD camera 36 at that timing.
When the imaging of the rubber product 15-1 is finished, the CCD camera 36 then detects the rubber product 15-1 based on the further lowering of the elevating member 34 and the detection by the photoelectric sensor for the second hole 48-2 from the lowest position. The rubber product 15-2 is positioned at a position for imaging, and at the timing of the positioning, the CCD camera 36 subsequently images the rubber product 15-2.
In the same manner, imaging of the rubber products 15-3 to 15-6 arranged in a vertical row is successively performed.
As described above, when imaging of the vertical first row of rubber products 15-1 to 15-6 is finished, the first row of rubber products 15 is then held while the traversing member 32 holds the elevating member 34. -1 to 15-6 and the second row of rubber products 15-7 to 15-12 are moved laterally by the distance S ₁ (FIG. 4) and stopped there.

Note the movement of the S ₁ is in advance provided with a position detection sensor corresponding to the lateral reference member for positioning may be performed positioned based on the position detection by them, but for this embodiment this S For the movement of distance _1, the movement amount is stored in advance in the automatic transfer device 38 by teaching, and the automatic transfer device 38, that is, the traversing member 32 moves in the horizontal direction and stops there based on the stored amount. .
The following Figure 4 in the distance S ₂ to the third column _is the same for further moving and positioning at the time of the distance S ₃ from the third column to the fourth column.

Now a pair of CCD cameras 36 by the movement of FIG. 4 in _{S 1} is in a state of being positioned in a position for imaging the rubber product 15-7 in the second column, where the CCD camera 36 captures an image of the rubber product 15-7 .
Then After finishing imaging of the rubber product 15-7, followed CCD camera 36 by upward movement of the lifting member 34 is made to increase a distance equal to the pitch P ₁ of rubber products 15-7 and 15-8, rubber products 15-8 imaging is performed.

In this embodiment, the upper and lower pitch of rubber products 15 of each row are both equal pitch P _1, thus after the end of imaging of the rubber product 15-7, the imaging of the next rubber products 15-8 Positioning for this purpose is performed based on detection of the position of the hole 48-2 by the photoelectric sensor 50.
In the same manner, imaging up to the second row of rubber products 15-12 is performed, and when all the imaging of the second row of rubber products is completed, the third row of rubber products is then performed in the same manner as described above. Imaging of rubber products 15-13 to 15-18 is performed, and then imaging of rubber products 15-19 to 15-24 in the last row is performed subsequently.
As a result, imaging for all the rubber products 15 held in the middle mold 28 is completed.

  As described above, according to the present embodiment, at least in the first direction, the imaging position can be determined by the CCD camera 36 by the reference member 46 and the photoelectric sensor 50, so that the imaging can be performed. In this case, it is not necessary to perform teaching for causing the automatic transfer device 38 to remember the movement, and the labor and time required for teaching can be reduced.

In the positioning using the reference member 46 and the photoelectric sensor 50, the time required from the time when the CCD camera 36 images one rubber product 15 until the next rubber product 15 is imaged can be shortened. Inspection speed can be increased and inspection capacity can be increased.
Moreover, since at least a part of teaching can be omitted, the cost required for this can be reduced.

  Further, in the present embodiment, since the detected portion is the through hole 48, the detection by the photoelectric sensor 50 with respect to the detected portion can be made accurate and easy.

7 to 10 show another embodiment of the present invention.
In this example, as shown in FIG. 8, a large rubber product 17 that is long in the horizontal direction is imaged by a CCD camera 36 and the appearance is inspected. In this embodiment, the rubber product 17 is shown in FIG. 8B. In this way, the imaging part to be imaged with respect to the rubber product 17 is divided into three in the horizontal direction, and the first fraction part, the second fraction part, and the third fraction part are each once. The image is taken by the CCD camera 36.
The imaging areas 17A, 17B, and 17C for the respective fraction portions are overlapped in the horizontal direction.
Here, the interval _{P 2} between the centers of the imaging area 17A and 17B, the interval _{P 2} between the center of the imaging area 17B and 17C are made equal to each other.

In this embodiment, the rubber product 17 is divided in the horizontal direction and each fraction portion is imaged, and the traversing member 32 has an imaging position of the CCD camera 36 as shown in FIG. A plate-like reference member for horizontal direction (second reference member) 52 used as a reference for positioning the camera in the horizontal direction is provided, and the reference member 52 is provided at intervals between the imaging areas 17A, 17B, and 17C. hole 54-1,54-2,54-3 are provided in a row at intervals _{P 2} which corresponds to the horizontal direction as three of the detected portion in the corresponding intervals.
Further, by detecting the holes 54 in the horizontal row, the photoelectric sensor for the horizontal direction (second position) for positioning the horizontal member 32 in the horizontal direction, that is, for positioning the CCD camera 36 in the horizontal direction. Detection sensor) 56 is provided in a fixed position.

In this example, based on the detection of the hole 48-1 of the reference member 46 by the photoelectric sensor 50 of FIG. 7, the imaging position by the CCD camera 36 is first positioned. Specifically, it is positioned at the imaging position for the rubber product 17-1 in the first row in the vertical direction and the uppermost position in FIG.
However, at this time, the CCD camera 36 is first positioned so as to image the imaging area 17A of the rubber product 17-1.

When so positioned, the CCD camera 36 images the imaging area 17A of the rubber product 17-1 (FIG. 9 (II)).
When imaging the imaging area 17A, then transverse member 32 is moved rightward in the drawing by a distance of P _2. The positioning at this time is performed when the photoelectric sensor 56 detects the hole 54-2 of the reference member 52.

  When the CCD camera 36 is thus positioned at the position where the second imaging area 17B is imaged, imaging by the CCD camera 36 is performed (FIG. 10 (III)), and then the third imaging area 17C is promptly performed. Is positioned at a position for imaging. The positioning at this time is performed based on the detection of the hole 54-3 by the photoelectric sensor 56 (FIG. 10 (IV)).

As described above, in this embodiment, imaging is performed three times for one rubber product 17, and an appearance inspection is performed for one rubber product 17.
As described above, when the image of the vertical first row and the uppermost rubber product 17-1 is taken, the first row of rubber products 17-2 and 17 based on the positioning by the reference member 46 and the photoelectric sensor 50. Imaging for -3 and 17-4 is performed one after another.
Then, when the imaging for the leftmost first row is completed, the imaging of the uppermost rubber product 17-5 in the second row is performed, and the same operation is repeated until the last rubber product 17-8. Complete the imaging.
After the imaging of the rubber product 17-4 in the first row is completed, the positioning of the rubber product 17-5 in the second row to the imaging position of the rubber product can be stored in advance by teaching. However, another reference member and a photoelectric sensor may be separately provided for positioning the imaging position with respect to the rubber product 17-5 in the second row.

  According to this embodiment, even when the size of the rubber product 17 is large, clear imaging can be performed up to the details, and the appearance inspection of the product can be performed with high accuracy.

  Also in this embodiment, the CCD camera 36 can be positioned using the reference member 52 and the photoelectric sensor 56 without using the teaching for the automatic transfer device 38 when imaging each fraction portion. The labor and time required for teaching can be reduced, and the fractional portion can be imaged quickly in a short time.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in various forms without departing from the spirit of the present invention.

It is a whole lineblock diagram showing an inspection device which is one embodiment of the present invention with an injection device and a mold clamping device. It is a perspective view which shows the inspection apparatus of FIG. It is a figure which shows the principal part of the inspection apparatus of FIG. It is a figure which shows the intermediate mold in the same embodiment in a rubber product holding state. It is explanatory drawing of the principal part process of the test | inspection method of embodiment of this invention. It is explanatory drawing of the principal part process following FIG. It is a figure which shows the inspection method of other embodiment of this invention with an inspection apparatus. It is a figure which shows the middle mold of FIG. 7 in a rubber product holding state. It is explanatory drawing of the principal part process of the inspection method of the embodiment. It is explanatory drawing of the principal part process following FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inspection apparatus 15, 17 Rubber product 16 Type set 24, 26 Outer type 28 Medium type 36 CCD camera 46 Reference member 48, 54 Hole 50 Photoelectric sensor 52 Reference member 56 Photoelectric sensor

Claims (5)

A plurality of simultaneously injection-molded products are held in an exposed state in the mold after the mold is opened, and an imaging device facing the mold in that state is moved relative to the mold so that each of the products 1 In the inspection method of the injection molded product, which is positioned at the imaging position for aiming at one and imaging for each product and judging the quality of the product by image processing,
When inspecting a plurality of the products arranged at predetermined intervals in the set first direction on the mold,
A first reference member for positioning the imaging position in the first direction by the imaging device, the first reference member having detected portions arranged at an interval equal to the arrangement interval of the products in the first direction; On the other hand, a first position detection sensor is provided for positioning the imaging position in the first direction for each product by the imaging device by moving relative to the first direction and detecting the detected portion of the first reference member. A method for inspecting an injection-molded product, wherein imaging is performed by an imaging device for each product in the first direction. A plurality of simultaneously injection-molded products are held in an exposed state in the mold after the mold is opened, and an imaging device facing the mold in that state is moved relative to the mold so that each of the products 1 In the injection molding product inspection method, which sets the imaging part to be imaged for a single product as described above, in the inspection method of the injection molded product, which is positioned at the imaging position where the aim is aligned and imaged for each product and the quality of the product is determined by image processing According to the imaging device, a plurality of fractions are fractionated in the second direction so that the fractionated portions are imaged by the imaging device, and detected portions are arranged corresponding to the fractionated portions. The second reference member for positioning the imaging position in the second direction and the second reference member by the imaging device by moving relative to the second reference member in the second direction and detecting the detected portion. 2nd position to position the imaging position of the direction An inspection method for an injection-molded product, comprising: a position detection sensor; and imaging the whole of one product by imaging each of the fractional portions one after another by the imaging device, and determining whether the product is good or bad .   The method for inspecting an injection molded product according to claim 1, wherein the detected part is a through hole. A plurality of simultaneously injection-molded products are held in an exposed state in the mold after the mold is opened, and an imaging device facing the mold in that state is moved relative to the mold so that each of the products 1 In the injection molding product inspection device, which is positioned at the imaging position where the aim is aligned with each other, performs imaging for each product, and determines the quality of the product by image processing,
An imaging position in the first direction by the imaging device, wherein the imaging device has detected portions arranged at intervals equal to the arrangement intervals of the plurality of products arranged at predetermined intervals in the set first direction. A first reference member for positioning the first reference member, and a relative movement in the first direction with respect to the first reference member, and detecting a detected portion of the first reference member, for each product by the imaging device. An injection molding product inspection apparatus, comprising: a first position detection sensor for positioning an imaging position in a first direction; and imaging with an imaging device for each product in the first direction. . A plurality of simultaneously injection-molded products are held in an exposed state in the mold after the mold is opened, and an imaging device facing the mold in that state is moved relative to the mold so that each of the products 1 In the injection molding product inspection device, which determines the quality of the product by performing image processing for each product and sets the imaging part to be imaged for a single product. A plurality of fractions in the second direction are taken by the imaging device for each fractioned portion, and the imaging device has a detected portion arranged corresponding to each fractioned portion. The second reference member for positioning the imaging position in the second direction, and the second direction by the imaging device by moving relative to the second reference member in the second direction and detecting the detected portion The second position detection sensor for positioning the imaging position of An injection-molded product characterized in that a whole product is imaged by imaging each fractionated portion one after another by the imaging device and judging the quality of the product Inspection equipment.

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