JP2003247948A - Inspection of resin molding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically determine whether molding is good or bad without a direct inspection of a die. <P>SOLUTION: A resin molding inspection method is used with a resin molding device for molding a molding in a die. A receiving step S4 receives a molding after stripping while maintaining an attitude at molding. An image data acquiring step S8 acquires image data on the received molding. A determining step S9 and S14 determines whether molding is good or bad from the acquired image data. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to inspection of resin molded products.

[0002]

2. Description of the Related Art Generally, in a resin molding apparatus, a resin such as plastic or rubber is filled between a pair of molds for molding. In order to separate the molded product from the mold, a method of separating one mold from the other mold is widely used.

When such a molded product is a rubber plug used for waterproofing a connector, in order to avoid product defects due to burrs during molding, the molded product is demolded, and then both surfaces of the molded product are inspected precisely. Had to do. Conventionally, humans have visually inspected, but since the number of rubber stoppers is very large, the operator is burdened with this visual inspection. In addition, in normal inspections, it is often about a day after demolding, so with the passage of time, oil seeps out on the surface of the molded product after demolding, making it difficult to handle and identify. There was a problem of becoming.

By the way, it is known that the above-mentioned burr defect of the molded product is caused when all or a part of the molded product remains inside the mold. Therefore, it is desired to automatically detect the remaining molded product and perform an appearance inspection of the molded product.

For this purpose, various resin molding apparatuses have been conventionally developed.

For example, Japanese Patent Laid-Open No. 11-48301 discloses that
A technique is disclosed in which an image of the inner surface of a mold is displayed on a monitor by a fixed or movable two-dimensional image capturing camera, and an operator monitors the remaining molded product.

Further, in Japanese Patent Laid-Open No. 5-261737,
There is disclosed a technique of an inspection device in which light emitted from an optical fiber is detected by an optical sensor such as a photocell and whether the light is blocked or not is confirmed as remaining in a mold.

Further, as a technique for automatically analyzing the image data of the molded product, for example, Japanese Patent Laid-Open No. 2000-17284.
Japanese Unexamined Patent Publication No. 3 (1998) discloses a technique of an inspection device that inspects the appearance of a semiconductor wafer with an optical microscope, a linear image sensor, and the like.

[0009]

By the way, conventionally, the molding conditions by the resin molding device and the correlation between the resin molding device and the defective item have not been grasped. Therefore, even in the inspection of the resin molded product, after collecting the products from the resin molding device, the inspection device is limited to the inspection.
However, the defect of the resin molded product can also occur due to the molded product remaining in the molding cavity of the mold. As a result, unless the mold is directly inspected, it is not possible to prevent the occurrence of secondary defects due to the residual product in the mold.

On the other hand, in the resin molding apparatus of the type in which the middle mold is sandwiched between the upper and lower molds, it is physically difficult to directly inspect the condition of the mold, so depending on the type of molding machine. Had a problem that it was not possible to perform a mold inspection after the mold was removed.

Moreover, when inspecting a molded product in a resin molding apparatus, it is necessary to align the molded product with a parts feeder or the like, resulting in a high inspection cost. Also, after collecting the molded products, they were inspected by another device, so when the time has passed since the products were manufactured, so-called oil bleeding in which the oil component oozes onto the surface of the resin molded product occurs, resulting in a false determination. There was also a problem of causing.

The present invention has been made in view of the above problems, and an object thereof is to automatically confirm the quality of molding without directly inspecting a mold.

[0013]

In order to solve the above-mentioned problems, the present invention provides a resin molding inspection method used in combination with a resin molding apparatus for molding a molded product with at least a pair of dies,
Acceptance process of receiving the molded product after demolding while maintaining the posture at the time of molding, image data acquisition process of acquiring image data of the received molded product, and judging the quality of molding based on the acquired image data The resin molding inspection method is characterized by further comprising:

Another aspect of the present invention is a resin molding apparatus including at least a pair of molds for molding a resin molded product, and a product collector for taking out the molded product molded by the mold from the mold. In the above product collector, the product collecting machine faces the mold in the open state and receives the molded product while maintaining the molded product in the posture at the time of molding, and the imaging for acquiring the image data of the molded product received by the saucer unit. A resin molding apparatus comprising: a unit; and a determination unit that determines whether the molding is good or bad based on the acquired image data.

In the present invention, "quality of molding" includes not only molding defects such as burrs and chips, but also defect judgment at the time of mold release such as scratches due to the mold release pin and remaining on the mold.

In the present invention, when inspecting a molded product,
Since the quality of the molding is determined based on the image data, it is possible to set a wide range of the quality items that can be determined, and take measures based on that. Therefore, it is possible not only to simply determine the non-defective product of the molded product itself, but also to discover a problem that has occurred in the resin molding device itself at an early stage. This makes it possible to deal with defective items having a correlation between the molding conditions and the resin molding device without directly inspecting the mold.
Further, in the receiving step, since the molded products are received from the mold while maintaining the posture during molding, it is not necessary to align them with a parts feeder or the like. Further, since it is possible to inspect immediately after molding, it is possible to prevent erroneous determination due to so-called oil bleeding in which an oil component seeps out on the surface of the resin molded product.

In a preferred embodiment, the receiving step includes a step of accommodating the molded product in each of the accommodating holes by exposing a tray unit having accommodating holes for individually accommodating the molded product to the mold of the resin molding apparatus. There is. In this case, the posture of the molded product can be maintained simply by delivering the molded product from the mold to the accommodation hole by the dropping operation of the molded product. Therefore, it is possible to reliably maintain the posture of the molded product with a simple configuration.

In another preferred aspect, the image data acquiring step includes a step of reading each molded product housed in the housing hole of the tray unit with a linear image sensor. In that case, since the acquired image data becomes finer, the reliability is improved and it is possible to determine whether or not various types of molding are good.

In still another mode, the receiving step includes a step of transporting the tray unit just below the mold of the resin molding device, and a step of reading a molded product in the mold with a linear image sensor in the carrying process. Contains. In that case, acquire the image data of the molded product in the mold,
It becomes possible to determine the quality of molding. Moreover, since the image data is acquired in the course of transporting the saucer unit using the linear image sensor, the operation of moving the saucer unit can also serve as the operation of sub-scanning the linear image sensor, resulting in a simplified configuration. Moreover, it is possible to obtain precise image data in a short time.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a sectional view showing a schematic structure of a resin molding apparatus A according to an embodiment of the present invention, and FIG. 2 is a front view of the same.

With reference to these figures, a resin molding apparatus A according to the illustrated embodiment is a resin molding machine 1 for molding a resin molded product W (a rubber plug of a waterproof connector in this embodiment).
And a product collecting machine 10 for collecting the molded product W demolded from the resin molding machine 1, and an inspection device 200 installed in the product collecting machine 10. In the following description, the direction in which the resin molding machine 1 faces the product collector 10 is assumed to be the front.

The resin molding machine 1 includes an upper mold 2 and a lower mold 3.
And a mold 4 having a middle mold 4 between the molds 2 and 3. The middle die 4 is a rectangular metal member, and a plurality of molding cavities 4a are formed in an area formed in a circle in the center thereof.
(See FIG. 3). Then, the molding cavity 4a is filled with resin, and each of the molds 2 to 4 is closed to mold a predetermined molded product W (for example, a waterproof plug for a connector). Further, in order to fill the resin into the molding cavity 4a of the middle mold 4, the middle mold 4 moves up and down directly below the upper mold 2 together with the lower mold 3 and is coupled to the upper mold 2. Can be displaced between a molding position where the molding cavity 4a is closed and a separation position where the upper mold 2 is separated below. Further, in order to take out the molded product, the middle die 4 can be moved together with the lower die 3 to the delivery position set in front of the above-mentioned disengagement position and directly above this delivery position. The mold can be separated from the lower mold 4 with respect to the demolding position set to.

The resin molding machine 1 is used to raise and lower the middle die 4 between the delivery position and the demolding position.
Has a demolding unit 5 in front of the molding position where the respective molds 2 to 4 are opened and closed.

The demolding unit 5 grips a receiving table 6 for receiving the lower mold 3 displaced from the detaching position to the transferring position, and a middle mold 4 conveyed to the receiving table 6 together with the lower mold 3. Along with this, an elevating arm 7 for elevating and lowering the middle mold 4 up and down between it and a demolding position set right above the transfer position, and the molded product W is separated from the middle mold 4 raised by the elevating arm 7. And a pin unit 8 for. The lower die 3 can be moved between a detaching position and a delivery position by a drive mechanism (not shown), and the middle die 4 conveyed by the lower die 3 is lowered by ups and downs. By being connected to the mold 3, the upper and lower parts are placed on the lower mold 3 in a detachable manner. In this state, the lower die 3 moves from the detaching position to the delivering position, so that the middle die 4 is delivered to the elevating arm 7 at the delivering position, and the elevating arm 7 is displaced upward. The mold 4 is detached from the lower mold 3, conveyed to the upper pin unit 8, and released from the release position.

FIG. 3 is a partially enlarged sectional schematic view showing the demolding operation of the resin molding machine 1 according to FIG.

Referring to the figure, the pin unit 8 is
A pin 9 is provided so as to correspond to the molding cavity 4a formed in the middle mold 4 in a one-to-one correspondence, and the elevating arm 7 moves the pin 9 through the molding cavity 4a of the middle mold 4. The molded product W in the molding cavity 4a is configured to be pushed downward.

In the embodiment shown here, the pins 9 are provided on a large number of molding cavities 4a formed in the circular molding area of the middle mold 4.
In order to prevent an excessive load from acting on the central portion of the middle mold 4 when the pin 9 is penetrated, the protruding lengths L1 to L1 of the pins 9 are
For example, L3 is changed in three steps so as to become shorter from the outer peripheral side toward the central side. Along with this, the raising and lowering operation by the raising and lowering arm 7 is performed in three stages so that the pin 9 having the protrusion length set to L1 first passes through L2, L3 and the molding cavity 4a in order. The stroke is set to change.

The molded product W released from the middle mold 4 by the pin unit 8 is collected by the product collector 10. 3A and 3B, 4b is a positioning hole, and 5b is a positioning pin for positioning the molding cavity 4a of the middle die 4 on the pin 9 by the positioning hole 4b.

Returning to FIG. 1 and FIG. 2, the product collector 10 includes a housing 11 provided in front of the resin molding machine 1,
It has a carrier 20 provided in the housing 11 and the carrier 20. The casing 11 is a combination of a steel mold member and a sheet metal member in a box shape, and a caster 12 is attached to the lower portion thereof.

FIG. 4 is a perspective view showing a schematic configuration of the embodiment shown in FIG.

With reference to FIG. 4, the housing 11 has a collecting position in which the carrier 20 described below is guided forward and backward to face the carrier 20 on the receiving table 6 of the demolding unit 5. A reciprocating mechanism 30 is provided to reciprocate between the product discharging position (the position shown in FIG. 1) set in front of the collecting position. The reciprocating mechanism 30 has a pair of rails 31 provided on the housing 11, a ball screw 32 extending in parallel with the rail 31, and a servo motor 33 that rotationally drives the ball screw 32 bidirectionally. ing. The carrier 20 has a housing 21 having a slider 22 that slides on the rails 31, and a nut portion 23 that is connected to a ball screw 32 in the housing 21. Then, the nut portion 23 receives the rotational power of the ball screw 32 in a state of being converted into a front-rear driving force, so that the reciprocating mechanism 30 precisely drives the front-rear direction.

The casing 21 of the transport vehicle 20 includes a pair of side plates 21a to which the sliders 22 are fixed and both side plates 21a.
bottom plate 21b and top plate 21c provided between a and 21a
And have integrally. Each of the plates 21a to 21c is a sheet metal member, is joined by welding or the like, and is assembled in the box shape shown in the drawing. The nut portion 23 is attached to the lower surface of the bottom plate 21b. On the other hand, the top plate 21
A saucer unit 40 is installed at c, and the saucer unit 40 can receive the molded product W that has been demolded by the pin unit 8 of the resin molding machine 1 described above. In the illustrated embodiment, an opening (not shown) is formed at the center of the bottom plate 21b and the top plate 21c so that the molded product W received by the tray unit 40 can be discharged.

FIG. 5 is an exploded perspective view of the saucer unit 40 according to the embodiment of FIG. 1, FIG. 6 is the same plan view, FIG. 7 is the same bottom view, and FIG. 8 is a bottom view when the saucer unit 40 is opened. 9 is a schematic partial sectional view showing the opened / closed state of the tray unit 40.

Referring to these drawings, the illustrated tray unit 40 includes an air cylinder 41 fixed to the top plate 21c of the transport vehicle 20, a main body plate 42 that is moved up and down by the air cylinder 41, and this main body plate. A shutter 43 provided on the lower surface of 42, a tray 44 fitted on the upper surface opened and closed by the shutter 43, and a tray 44
And a guide plate 45 that is attached to and detached from.

The air cylinder 41 is provided when the transport vehicle 20 moves to the collecting position at a timing described later.
The main body plate 42 is lifted just below the middle mold 4 in the demolding position to receive the demolded molded product W in the tray 44. In order to guide the vertical movement of the body plate 42 by the air cylinder 41, guide bars 45f are provided at the four corners of the body plate 42.
Are hung down, and each is guided by a sleeve 46 provided on the top plate 21c of the transport vehicle 20.

The body plate 42 is a sheet metal member having a rectangular shape as a whole, and a recess 42a for fitting the tray 44 is formed on the upper surface thereof. An insertion hole 42b for taking out the molded product W in the tray 44 is formed in the central portion of the recess 42a so that the entire molded product holding area of the tray 44 fitted in the recess 42a can be opened. In the illustrated example, the body plate 42 is provided with the positioning pins 5b of the pin unit 8 so that the middle die 4 and the tray 4
A hole 42f for aligning 4 and 4 is formed.

The shutter 43 has a body plate 42.
Is for opening and closing the insertion hole 42b of the main body 43a and a slide bar 43b having a front end protruding in front of the main body 43a. And have.

The main body portion 43a is a rectangular plate member having a necessary and sufficient area for opening and closing the insertion hole 42b of the main body plate 42.

The slide bar 43b is a metal member having a rectangular cross section, and a rib 43 extending forward and backward is provided on the outer side of the slide bar 43b.
c is formed. On the other hand, on the lower surface of the body plate 42, the slide bar 4 is formed along the undulations of the ribs 43c.
A guide groove 42c for guiding the 3b back and forth is formed for each slide bar 43b. By fitting the slide bar 43b into the guide groove 43b, the main body plate 42 and the shutter 43 can be relatively displaced forward and backward. Connected in a state.

As shown in FIG. 7, a pair of dampers 42d for receiving the front end of the main body portion 43a of the shutter 43 is provided on the bottom surface of the main body plate 42.
Can be regulated by these dampers 42d to a position where the insertion hole 42b is closed. Further, in order to hold the shutter 43 in the closed position shown in FIG. 7, the body plate 42 and the shutter 43 are provided with a pair of brackets 42e and 43e, respectively, and these brackets 42e and 43e are extended by the tension coil spring 47. It is connected.

On the other hand, the insertion hole 42 of the body plate 42
In order to open b, a contact portion 43f is formed at the front end of each slide bar 43b of the shutter 43, and a long air cylinder 48 (provided in the housing 11 of the product collector 10) is provided. The movement is restricted by a rod 48a (see FIGS. 1 and 7). As a result, as will be described later, in the process in which the transport vehicle 20 returns from the collecting position to the product discharging position, the air cylinder 48
Extends the rod 48a to abut against the abutting portion 43f (see FIG. 9A), and the transport vehicle 20 continues to move while the movement of the shutter 43 is restricted. Relative to the insertion hole 4
3b is opened (see FIG. 9B).

Referring to FIGS. 5 and 6, the tray 4 is
4 is a metal product integrally having a rectangular frame portion 44a and a circular base portion 44b provided at the center of the frame portion 44a. The shape of the frame portion 44a and the recess 42a for fitting the frame portion 44a into the main body plate 42 is the same as the frame portion 44a.
The front and rear are formed with asymmetrical undulations so that they can be fitted only in a unique posture.

The base portion 44b is formed in a circular shape corresponding to the molding area of the middle mold 4, and the molding cavities 4a (see FIG. 3) of the middle mold 4 are formed in the surface thereof. A plurality of accommodating holes 44c that are vertically opposed to each other are formed. Accommodation hole 44
c is set to a diameter that is necessary and sufficient for inserting the molded product W up and down.

The guide plate 45 serves to guide the molded product W, which has been removed from the middle mold 4, into the corresponding accommodation hole 44c of the tray 44 when the molded product W is removed from the middle mold 4. is there. The illustrated guide plate 45 is a metal member integrally including a disc portion 45a formed in a substantially circular shape and ear portions 45b extending on both sides of the disc portion 45a.

The disk portion 45a is formed in a circular shape corresponding to the molding area of the middle mold 4, and has a guide hole 45c provided for each molding cavity 4a of the middle mold 4. The guide hole 45c has a tapered upper portion,
The tapered portion 45d (see FIGS. 13B and 13C) guides the molded product W and guides it into the accommodation hole 44c of the tray 44.

The ear portion 45b is a portion for gripping the guide plate 45 when the guide plate 45 is attached to or detached from the tray 44. In the illustrated example, the ear portion 45b is set to have a thickness of about half that of the disc portion 45a, and the top surface of the disc portion 45a is flush with the top surface of the disc portion 45a. And is projected.

In order to attach / detach this guide plate 45 to / from the tray 44, the housing 11 of the product collector 10 is provided with an attaching / detaching unit 50 for the guide plate 45.

FIG. 10 shows the detachable unit 5 according to this embodiment.
13 is a perspective view showing a schematic configuration of No. 0, FIG. 11 is an enlarged perspective view showing an essential part of the detachable unit 50, FIG. 12 is a schematic sectional view showing the operation of the detachable unit 50, and FIG.
(C) is an enlarged cross-sectional view showing an operation process of the detachable unit.

With reference to FIGS. 1 and 10 to 13, the detachable unit 50 includes a fixed plate 51 fixed to the housing 11 of the product collector 10, and an elevating plate arranged directly below the fixed plate 51. And 52. An air cylinder 53 is projectingly provided at a substantially central portion of the fixed plate 51, and a rod 53a thereof extends immediately below and is fixed to the upper surface of the movable plate 52. Further, guide sleeves 54 are fixed to the four corners of the fixed plate 51 (only three positions are shown in FIG. 10), and the lower end of the guide rod 55 guided by the guide sleeves 54 to move up and down is the above-mentioned. It is fixed to the upper surface of the movable plate 52. As a result, the movable plate 52 is driven by the air cylinder 53 and can move up and down smoothly. Due to the raising and lowering operation of the air cylinder 53, the movable plate 52 causes the movable plate 52 to attach / detach the guide plate 45 to / from the receiving tray 44, a press position for slightly lowering the guide plate 45 to press the guide plate 45, and an attach / detach position. The guide plate 45 received in the above can be displaced to a floating position for lifting upward.

Referring to FIG. 11, the movable plate 52 is
A pair of brackets 56 are provided on the lower surface of the pair so as to correspond to the ears 45b of the guide plate 45. Each bracket 56 is a metal member having an L-shaped cross section integrally including a fixed portion 56a fixed to the lower surface of the movable plate 52 and a rib 56b formed on the bottom of the fixed portion 56a.

As shown in FIGS. 10 and 12, each fixing portion 5
6a and 56a extend in the front-rear direction, and the guide plate 4 is provided between the lower surface of the movable plate 52 and the upper surface of the rib 65b.
The insertion / withdrawal space having a height h1 higher than the thickness t1 of the ear portion 45b of No. 5 is defined.

Further, the rib 56b is configured to be able to lift the guide plate 45 while allowing the guide plate 45 to move in the front-rear direction by receiving the lower surface of the ear portion 45b. The thickness t2 of the rib 56b is set to be thinner than the height h2 from the lower surface of the ear portion 45b to the bottom surface of the guide plate 45. As a result, the movable plate 52 has the rib 5
6b can move the ear portion 45b downward from the lifted position to press the upper surface of the guide plate 45.

An air cylinder 57 is provided in one of the brackets 56 in order to lock / unlock the guide plate 45 with respect to the pair of brackets 56. This air cylinder 57 is attached to a stay 58 fixed to the upper surface of the movable plate 52, and has its rod 57a.
(See FIGS. 12 and 13A to 13C) are arranged in the left-right direction. The rod 57a is inserted through the slit 56d formed in the bracket 56 facing the stay 58.
By extending the rod 57a, the stopper 57b fixed to the tip of the rod 57a presses the opposing ears 45b to lock the guide plate 45 and the rod 57.
By shortening a, the ear portion 45b is opened, and the ear portion 45b is driven to and from the lock release position where the lock is released.

With reference to FIGS. 13A to 13C, it is preferable that the molded product W taken into the guide plate 45 is dropped into the tray 44 immediately below the guide plate 45. However, as described above, in the demolding process of the molded product, the pin 9 having different protruding lengths L1 to L3 is used to gradually push out the molded product W on the inner peripheral side from the outer peripheral side. From the relationship, the molded product W is likely to remain on the inner peripheral side of the guide plate 45 (see FIG. 13A).

Therefore, in the illustrated embodiment, when the position where the ear portion 45b of the guide plate 45 is coupled to the bracket 56 of the movable plate 52 is reached (see FIG. 13A), the movable plate 52 is once lowered. The molded product W lifted from the guide plate 45 is pushed down (see FIG. 13 (B)), and then the ear portion 45b is returned to a position where it can be lifted by the bracket 56, and then the rod of the air cylinder 57 is extended,
The guide plate 45 is locked. After this locking, the guide plate 45 can be detached upward from the tray 44 by driving the movable plate 52 upward by the air cylinder 53 (see FIG. 12).

FIG. 14 is a perspective view showing a main configuration of a product selection unit 70 used in the product collector 10 of this embodiment.

Next, referring to FIGS. 1 and 14, the product selection unit 70 selects one of the molded products W stored in the tray 44 by the time the transport vehicle 20 arrives at the product discharge position from the collection position. This is for collecting in the defective product collection box 71 what has been determined to be a defective product by the inspection device 200, and for accommodating the remaining good products from the tray 44 that has arrived at the product discharge position in the good product storage box 72.

The product selection unit 70 includes the product collector 10.
A crosspiece 73 provided on the casing 11 of the carriage 11 that crosses above the moving path of the transport vehicle 20, a rodless cylinder 74 provided along the crosspiece 73, and an upper part of the moving path by the rodless cylinder 74. Slider 7 moving left and right
5 and a defective product discharge unit 76 and a non-defective product discharge unit 77 attached to the slider 75. Further, in order to discharge the molded product W determined as a defective product to the defective product collection box 71, a discharge pipe 71a is opened at a position outside the moving route of the transport vehicle 20, and a non-defective product is obtained. The molded product W determined to be
In order to be accommodated inside 2, the introduction pipe 72a that opens directly below the tray 44 of the transport vehicle 20 at the product discharge position is opened on the moving path. As shown in the figure, the introduction pipe 72a is open toward the whole of the receiving tray 44, and the shutter 43 of the receiving tray 44 in the product discharge position is opened, so that all the receiving holes 44c are opened.
It can be made to face inside.

The rodless cylinder 74 provided on the crosspiece 73 drives the slider 75 left and right above the transporting vehicle 20 passing through the moving path to move the slider 7
The units 76 and 77 mounted on the vehicle 5 are mounted on the carrier vehicle 20.
By facing the upper tray 44, it can be reciprocated left and right.

The defective product discharge unit 76 has an air cylinder 76a extending vertically, and a pickup member 76c which moves up and down in a posture facing the tray 44 by a rod 76b of the air cylinder 76a. The air cylinder 76a of this defective product discharge unit 76 is
In association with the driving operation of the servo motor 33 for driving the and the rodless cylinder 74 of the product selection unit 70, the defective molded product W housed in the specific housing hole 44c provided in the tray 44 is picked up. ,
The molded product W picked up via the discharge pipe 71a arranged outside the movement path is collected in the defective product collection box 71.

The non-defective product discharge unit 77 has an air cylinder 77a similar to the defective product discharge unit 76, and an air nozzle 77c which faces the tray 44 by a rod 77b of the air cylinder 77a. The non-defective product discharging unit 77, after the defective product discharging process by the defective product discharging unit 76 is completed, the air cylinder 48 for driving the shutter 43 of the tray 44, the driving operation by the servo motor 33 for driving the transport vehicle 20, and the product selection. Unit 70
The molded product W in the accommodation hole 44c of the tray 44 can be blown down to the introduction pipe 72a in cooperation with the rodless cylinder 74.

The inspection apparatus 200 according to the present embodiment is capable of making a quality judgment for selecting the molded product W by the product selection unit 70.

With reference to FIGS. 1 and 4, the inspection apparatus 200 shown in the figure is a molded product W in the middle mold 4 of the resin molding machine 1.
A lower image pickup unit 210 for picking up an image of the molded product W that has been demolded and is housed in the tray 44, and these image pickup units 210, 2
Based on the image data picked up by the image pickup device 20, a discriminating unit 230 for discriminating the quality of the molding process and the quality of each molded product W is provided.

Each of the image pickup units 210 and 220 includes an image pickup camera 21 having a built-in linear image sensor.
1, 221 and an illumination lamp 212 for illuminating the imaging target,
222, and the reflecting mirrors 214 and 224 for guiding the reflected light from the imaging target irradiated to the illumination lamps 212 and 222 to the imaging cameras 211 and 221 as a unit.

The lower image pickup unit 210 is one in which an illumination lamp 212 is attached to both side plates 21a, 21a of the transport vehicle 20, and an image pickup camera 211 and a reflecting mirror 214 are attached to the lower surface of the bottom plate 21b. In the process of moving from the position to the collection position, this movement is made a sub-scan, and the lower surface of the middle mold 4 is mainly scanned in the width direction, so that the end surface shape of each molded product W in the molding cavity 4a of the middle mold 4 is formed. Are to be imaged.

On the other hand, the upper image pickup unit 220 has an image pickup camera 221 and an illumination 22 on the upper part of the housing 11 of the product collector 10.
2. By fixing the reflecting mirror 224, the tray 44 of the carrier 20 between the attachment / detachment unit 50 and the product discharge position is illuminated, and the carrier 20 is moved in the sub-scanning direction in the direction orthogonal to the moving direction. By performing the main scanning of the tray 44, each molded product W in the accommodation hole 44c on the tray 44 is formed.
The image of the end face shape is captured.

The discriminating section 230 has a microprocessor and other electrical components, is connected to the image pickup units 210 and 220 via an interface card (not shown), and converts the imaged image into digital data. It is configured to be able to perform various determination processes.

In the memory section of the microprocessor,
An inspection program for performing various inspections based on the captured image and inspection data necessary for this inspection program are included. In the illustrated embodiment, as the inspection program, a shape determination program for determining whether or not the cross-sectional shape of the imaged molded product W is good, and a molded product W that has been demolded
The remaining number determination program that counts the number of molded products and compares it with the set number of molded products, and if the counted number is less than the number of molded products described above, determines that the molded product remains in the resin molding machine A. The inspection data includes data necessary for each of these programs.

FIG. 15 shows a processing method for the appearance inspection of the molded product W. (A) shows a case of burr inspection, (B) shows a case of chipping inspection, and (C) shows a case of presence inspection. ing.

Referring to FIG. 15 (A), when inspecting the molding product W for burrs, it corresponds to the contour of the molding product W that should be in the molding cavity 4a of the middle mold 4 or the receiving hole 44c of the tray 44. Then, the inspection line L is set on the outer peripheral side, and the hue, saturation, luminance, etc. are referred to over the entire circumference. In the illustrated embodiment, since the molded product W has a cylindrical shape, the inspection line L is a circle concentric with the molded product W. In the case of a legitimate product, each pixel on the inspection line L has the same level of hue, etc., whereas the pixel in the area where the burr D1 occurs is
Since the characteristics are changed, when the characteristics of the pixels on the inspection line L are different over a certain area, it is possible to determine that the burr D1 is generated.

On the other hand, as shown in FIG.
As a procedure for inspecting the presence or absence of 2, the contour line S is extracted from the image data of the molded product W, and the area thereof is compared with the data of the non-defective product to make a determination. If chip D2 occurs,
Since the contour of that portion becomes thicker and the area becomes larger than the data of the non-defective product, it is possible to detect the chip D2 by setting the threshold value.

Referring to FIG. 15C, when the presence / absence inspection is performed by the upper image pickup unit 210, the molding product W which should be in the molding cavity 4a of the middle mold 4 or the accommodation hole 44c of the tray 44 is placed. The inspection line L is set concentrically, and the hue, saturation, luminance or the like of the pixel on the inspection line L is referred to. If there is a molded product W, the characteristics of the pixel are equal to the characteristics of the resin, whereas if there is no molded product W, the pixels on the inspection line L are different from the characteristics of the resin. The presence or absence of the molded product W can be determined and the number of molded products W can be counted.

FIG. 16 shows a resin molding apparatus A according to this embodiment.
It is a block diagram of.

With reference to FIG. 2 and FIG. 2, the resin molding apparatus A is provided with a control unit 300 which controls the resin molding machine 1, the product collector 10, and the inspection apparatus 200. The control unit 300 is controlled by the operator by the control panel 310, and the control content can be displayed on the display 320.
With this control unit 300, the resin molding apparatus A is configured to control each part based on the flowchart described below.

Next, the operation of the above-described embodiment will be described.

FIG. 17 shows a resin molding apparatus A according to this embodiment.
18 is a flowchart showing the operation procedure of FIG.
7 is a schematic cross-sectional view showing an operation process of the resin molding device A based on the flowchart.

First, referring to FIG. 1, in the state shown in the drawing, the resin molding machine 1 is in the stage of molding by connecting the respective molds 2 to 4. In this state, the carrier 20 of the product collector 10
Is in the product discharge position (the frontmost end of the product collector 10), and the detachable unit 50 holds the guide plate 45 in the upper floating position.

As shown in FIG. 18, when the molding process by the resin molding machine 1 is completed, the resin molding machine 1 moves the combined body of the lower mold 3 and the middle mold 4 from the upper mold 2 to the lower releasing position. Move and then move to the front handing position. In conjunction with this operation, the transport vehicle 20 of the product collector 10
Starts moving toward the delivery position of the resin molding machine 1.

Referring to FIG. 19, when the combined body of the lower mold 3 and the middle mold 4 arrives at the delivery position, the elevating arm 7 of the demolding unit 5 receives the middle mold 4 from the lower mold 3, The middle mold 4 is separated from the lower mold 3 by lifting it right above. Then, when it arrives at the demolding position, it waits for the transport vehicle 20 to move to the delivery position. Further, in this process, the lower mold 3 retracts to the front disengagement position, and allows the transport vehicle 20 to be displaced to the delivery position.

On the other hand, the reciprocating mechanism 30 of the product collector 10
Drives the servomotor 38 (see FIG. 4) in one direction, so that the transport vehicle 20 moves toward the delivery position (see step S1 in FIG. 17).

With reference to FIGS. 10 and 20, the tray 44 of the tray unit 40 is moved to the detachable unit 50 of the product collector 10 while the transport vehicle 20 moves to the delivery position.
When it reaches the position right above the guide plate 45 lifted up to the above position, the transport vehicle 20 is connected to the guide plate 45 at this location. Specifically, the air cylinder 53 lowers the movable plate 52 to the attachment / detachment position, the guide plate 45 is seated on the tray 44, and then the air cylinder 57 is driven to release the lock. After that, when the transport vehicle 20 moves to the delivery position of the demolding unit 5, the guide plate 45 separates from the movable plate 52 and is transported integrally with the tray unit 40 (see step S2 in FIG. 17).

Referring to FIG. 21, after the guide plate 45 is coupled to the tray unit 40, the movable plate 52 of the detachable unit 50 is raised again and the transport vehicle 20 is moved to the delivery position. In the process of moving to the transfer position, the lower imaging unit 210 assembled to the transport vehicle 20 images the lower surface of the middle mold 4 waiting at the demolding position (see step S3 in FIG. 17). In this imaging process, the inspection device 200 performs the shape inspection of each molded product W in the middle mold 4 individually, so that the quality of each molded product W can be determined by the memory of the determination unit 230. Image data is stored in the unit.

Referring to FIGS. 3 and 22, the transport vehicle 20 arrives at the delivery position, the tray 44 of the tray unit 40 and the guide plate 45 connected to the tray 44.
When arrives just below the middle mold 4, the air cylinder 41 of the tray unit 40 extends the rod 41a to lift the main body plate 42, and the guide plate 45 connected to the tray 44 is joined to the lower surface of the middle mold 4. Let In this state, the elevating arm 7 of the demolding unit 5 repeats the elevating operation of the middle mold 4 in three steps, and inserts each pin 9 of the pin unit 8 into the corresponding molding cavity 4a. Molding fossa 4
The molded product W in a is removed. By this demolding process,
The molded product W is a guide plate 4 in order from the outer peripheral side of each molding area.
5 (see step S4 in FIG. 17).

With reference to FIGS. 13, 23, and 24, when the demolding step is completed, the air cylinder 41 of the tray unit 40 lowers the main body plate 42 again, and the reciprocating mechanism of the product collector 10 is moved. The servomotor 30 drives the servomotor 38 in the other direction to drive the transport vehicle 20 forward (see step S5 in FIG. 17). On the other hand, prior to the driving operation of the transport vehicle 20, the detachable unit 50 again lowers the movable plate 52 to the detachable position and waits for the guide plate 45. By moving the transport vehicle 20 forward in this state, the ear portion 45b of the guide plate 45 is connected to the bracket 56 of the movable plate 52 (FIG. 13).
(See (A)). Then, the movable plate 52 is once lowered to drop the molded product W lifted from the guide plate 45 into the tray 44 (see step S6 of FIG. 13B, FIG. 17), and then the rod 57a of the air cylinder 57. Is extended, and the guide plate 45 is locked by the stopper 57b (see FIG. 13C, step S7 in FIG. 17).
By lifting the movable plate 52 in this state,
The guide plate 45 is separated from the tray 44 (see FIG. 24). On the other hand, in the resin molding machine 1, the lower mold 3 moves to the delivery position, and the middle mold 4 is placed on the lower mold 3.
Will be seated and handed over, then return to the detached position and repeat the molding process.

Referring to FIG. 25, after the guide plate 45 has been levitated, the upper imaging unit 220 images the upper surface of the tray 44 in the process of moving the transport vehicle 20 forward (see step S8 in FIG. 17). . In this imaging process, the inspection device 200 performs the shape inspection of each molded product W in the tray 44 individually, and determines whether each molded product W is good or bad in the memory unit of the determination unit 230. Store image data. At the same time, the number of molded products W accommodated in the accommodating holes 44c of the tray 44 is counted, and it is determined whether or not all the molded products W have been removed from the middle mold 4. .

Referring to FIG. 17, in the inspection apparatus 200, after the imaging process by the upper imaging unit 220 is completed, the discriminating section 230 confirms the mold release, that is, the molded products W are taken out from all the molding cavities 4a. Whether or not it is determined by the program of the determination unit 230. If it is determined that the remaining product remains, the inspection device 200 outputs a signal to the control unit 300 to stop the resin molding device A (step S10). For this reason, the worker performs the defect processing of the resin molding device A. In this defect processing, the operator visually inspects the molds 2 to 4 (step S11), and if there is no remaining product, resets each part and restarts the operation (step S12). The removal work (step S13) is performed, and the process proceeds to step S12.

On the other hand, if there is no problem in the mold release confirmation process, the process of the inspection device 200 is the appearance inspection (step S
Go to 14). In this visual inspection, FIG.
The shape inspection of the molded product W is performed by the procedure described in (B),
The product selection unit 70 selects good products and defective products based on the inspection result.

With reference to FIGS. 14 and 26, in the defective product discharging step of discharging the molded product determined to be defective, the transport vehicle 20 is maintained while the rod 48a of the air cylinder 48 is contracted.
To the discharge position. During this movement process,
The product selection unit 70 drives the slider 75 in the horizontal direction orthogonal to the movement path of the transport vehicle 20, and causes the pickup member 76c of the defective product discharge unit 76 mounted on the slider 75 to detect the true of the molded product W that has been certified as defective. The molded product W is picked up by the pickup member by facing the upper part and then driving the air cylinder 76a. After that, the molded product W picked up by the slider 75 is discharged to the discharge pipe 71 a and collected in the defective product collection box 71. Then, the above operation is repeated to remove all defective products from the tray 44.

With reference to FIGS. 14 and 27, when all the defective products in the tray 44 are discharged, the carrier 20 once retreats to the uppermost stream of the product selection unit 70, and then goes to the product discharge position. To move forward. Prior to this movement, the rod 48a of the air cylinder 48 extends, and the shutter 43 is restricted from moving forward at the position shown in FIG. Thereby, the tray 44 of the tray unit 40
Is the shutter 43 as the transport vehicle 20 moves forward.
As a result, the main body plate 42 moves.
The insertion hole 42a is opened right above the introduction pipe 72a of the good product storage box 72 as the transport vehicle 20 moves forward. For this reason, the accommodation hole 44c of the tray 44 is also opened sequentially from the downstream side of the movement path and faces the introduction pipe 72a immediately below it. The product sorting unit 70 includes a slider 7
5 is driven in the horizontal direction orthogonal to the moving path of the transport vehicle 20, and the air nozzle 77 of the non-defective product discharge unit 77 mounted on the slider 75 is attached to the open portion of the tray 44.
The saucer 4 facing the open portion by the pressurized air discharged from the air nozzle 77c while facing c
All the molded products W accommodated in the accommodating holes 44c of No. 4 are blown down into the introduction space 72a. As a result, the molded product W that has been determined to be a non-defective product is stored in the non-defective product storage box 72 from the introduction period 72a.

As described above, according to this embodiment, the receiving step (step S4) of receiving the molded product W after demolding while maintaining the posture at the time of molding and the image data of the received molded product W are described. An image data acquisition step (step S8) to be acquired and a determination step (steps S9 and S14) for judging whether the molding is good or bad based on the acquired image data are provided. Since the quality of the molding is determined based on the above, it is possible to set a wide range of the quality items that can be determined, and take measures based on it. Therefore, not only can the product W itself be determined as a non-defective product, but also the problems that have occurred in the molds 1 to 4 can be found early. This makes it possible to deal with defective items having a correlation with the molding conditions and the resin molding apparatus A without directly inspecting the molds 1 to 4. Further, in the receiving step, since the molded product W is received from the mold while maintaining the posture at the time of molding, it is not necessary to align the molded product W with a parts feeder or the like, and the inspection cost can be suppressed low. Further, since the inspection can be performed immediately after molding, it is possible to prevent erroneous determination due to so-called oil bleeding in which the oil component oozes on the surface of the resin molded product W.

Further, in the receiving step in the present embodiment, the tray unit 40 having the accommodation holes 44c for individually accommodating the molded articles W is made to face the mold of the resin molding apparatus, and the molded articles W are accommodated in the respective accommodation holes 44c. Is included.
Therefore, it is only necessary to deliver the molded product W from the mold to the housing hole 44c by the dropping operation of the molded product W.
It becomes possible to maintain the posture of. As a result, it is possible to reliably maintain the posture of the molded product W with a simple configuration.

Further, the image data acquisition step in the present embodiment includes a step of reading each molded product W accommodated in the accommodation hole 44c of the tray unit 40 with a linear image sensor. In that case, since the acquired image data becomes finer, the reliability is improved and it is possible to determine whether or not various types of molding are good.

Further, in the receiving step in the present embodiment, the tray unit 40 is moved to the middle mold 4 of the resin molding apparatus A.
The process includes a step of transporting directly underneath and a step of reading the molded product W in the middle mold 4 by the lower imaging unit 210 as a linear image sensor in the transporting step. Therefore, it is possible to determine the quality of the molding by acquiring the image data of the molded product W in the mold. Moreover, since the image data is acquired by using the linear image sensor in the process of transporting the tray unit 40, the operation of moving the tray unit 40 can also serve as the operation of sub-scanning the linear image sensor. It is possible to simplify and obtain precise image data in a short time.

Further, in the present embodiment, the step of receiving the molded product W after the demolding while maintaining the posture at the time of molding by the pan 44 of the pan unit 40, and the image of the molded product W received by the upper imaging unit 220. Since the step of acquiring data and the step of counting the number of molded products W based on the image data acquired by the determination unit 230 are provided, even when a molding die having a middle die is adopted. There is no restriction on the location due to the provision of the middle mold.

Further, since the discriminating section 230 has a step of discriminating the quality of each molded product W based on not only the image data picked up by the lower image pickup unit 210 but also the image data picked up by the upper image pickup unit 220. In terms of hardware, it is not necessary to separately configure the means for detecting the remaining of the molded product W and the means for determining the quality of the molded product W, which is economical.

Further, in this embodiment, the pan unit 4
By maintaining and receiving the molded product W in which 0 is demolded in the posture at the time of molding, the molded product W is arranged in the tray unit 40 in a state in which the appearance inspection can be performed. Since the molded product W is imaged by the linear image sensor in this state, the reliability of the counting operation by the counting unit can be improved.

In the embodiment of the present invention, by providing the guide plate 45, the molded product W at the time of demolding can be surely guided to the tray 44, and at the time of imaging, the molded product W is opened by opening the tray 44. It becomes possible to clearly image.

Moreover, since the detachable unit 40 has the movable plate 42 as a pressing means for pressing the molded product W lifted up from the guide plate 45 against the receiving tray, the molded product W is reliably received by the receiving tray. It can be delivered, and the delivery error due to the guide plate 45 can be prevented as much as possible.

The above-described embodiment is merely an example of a preferred specific example of the present invention, and the present invention is not limited to the above-described embodiment.

28A and 28B are views showing another example of the appearance inspection according to the present invention. FIG. 28A is a front view showing a state of a molded product to be inspected, and FIG. 28B is a molded product of FIG. The image data is shown.

Referring to FIGS. (A) and (B), when inspecting whether or not the minute crack D3 is formed in the molded product W, first, from the image data taken, the data shown in FIG. As shown, the contour line S is extracted, and the center of gravity O of the molded product W is obtained. Next, the inspection circle C is set from the center of gravity O to the outside, and the brightness value from the center of gravity O to the inspection circle C is calculated.
Measure on the radiation for each pixel. Assuming that FIG. 28 (A)
When the minute crack D3 as shown in (3) is formed, the brightness value of the portion decreases, so that the minute crack D3 can be detected by setting the threshold value. As described above, by executing the inspection method shown in FIG. 28 in step S14 of FIG. 17, it becomes possible to detect even a minute chip.

29A and 29B are views showing another example of the appearance inspection according to the present invention. FIG. 29A is a schematic side view showing a state of a molded product to be inspected, and FIG. 29B is a schematic front view of a non-defective molded product. , (B
1) is a graph showing a luminance value of a non-defective molded product, (C) is a schematic front view of a molded product having a defective gate, and (C1) is a graph showing a luminance value of a molded product having a defective gate.

Referring to the figure, if the resin remains in the path for injecting the resin into the molding cavity of the mold and a so-called gate defect occurs, the molded product W has a minute undulation D4. Is formed. As a procedure for inspecting the undulations D4 caused by such a gate defect, as shown in FIG. 29B, the contour line S is extracted from the image data of the molded product W, and the center of gravity O of the molded product W is set as described above. Obtain by the same procedure. Next, the inspection line Tp,
Tv is set for each pixel, and the brightness value on that line is determined by the degree of correlation with the non-defective data.

As shown in FIG. 29 (B1), if it is a non-defective product, the luminance value has a square pulse shape, but the undulation D
When the molded product W in which No. 4 is inspected is inspected, a portion P where the luminance value transiently rises is generated due to the halation phenomenon as shown in FIG. This makes it possible to detect a gate defect. As described above, by performing the inspection method shown in FIG. 29 in step S14 of FIG. 17, it becomes possible to detect the undulations D4 caused by the gate failure.

Needless to say, various design changes can be made within the scope of the claims of the present invention.

[0107]

As described above, according to the present invention, when the molded product is inspected, the quality of the molding is determined based on the image data. Therefore, there is a correlation between the molding condition and the resin molding device. It is also possible to deal with defective items having "," and it is possible to recommend secondary occurrence of defective products as much as possible. Moreover, since it is not necessary to align the parts with a parts feeder, the inspection cost can be kept low. In addition, since the inspection can be performed immediately after molding to prevent erroneous determination due to so-called oil bleeding, the reliability of the inspection is enhanced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a schematic configuration of a resin molding device that employs an inspection device according to an embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged schematic partial sectional view showing a demolding operation of the resin molding machine according to FIG. 1.

FIG. 4 is a perspective view showing a schematic configuration of the embodiment of FIG.

5 is an exploded perspective view of the tray unit according to the embodiment of FIG. 1. FIG.

FIG. 6 is a plan view of the same.

FIG. 7 is a bottom view of the same.

FIG. 8 is a bottom view when the tray unit is opened.

FIG. 9 is a schematic partial sectional view showing an opened / closed state of the tray unit.

FIG. 10 is a perspective view showing a schematic configuration of a detachable unit according to the present embodiment.

FIG. 11 is a perspective view showing an enlarged main part of the detachable unit.

FIG. 12 is a schematic cross-sectional view showing the operation of the detachable unit.

FIG. 13 is an enlarged sectional view showing an operation process of the detachable unit.

FIG. 14 is a perspective view showing a main configuration of a product selection unit used in the product collector of this embodiment.

FIG. 15 shows a processing method for appearance inspection of a molded product, (A) shows a case of burr inspection, (B) shows a case of chipping inspection, and (C) shows a case of presence / absence inspection.

FIG. 16 is a block diagram of a resin molding device according to the present embodiment.

FIG. 17 is a flowchart showing an operation procedure of the resin molding device according to the present embodiment.

FIG. 18 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 19 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 20 is a schematic sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 21 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 22 is a schematic sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 23 is a schematic sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 24 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 25 is a schematic sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 26 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

FIG. 27 is a schematic cross-sectional view showing an operation process of the resin molding device based on the flowchart.

28A and 28B are diagrams showing another example of the appearance inspection according to the present invention, in which FIG. 28A is a front view showing a state of a molded product to be inspected, and FIG. 28B is image data of the molded product in FIG. Is shown.

FIG. 29 is a diagram showing another example of the appearance inspection according to the present invention, in which (A) is a schematic side view showing a state of a molded product to be inspected, (B) is a schematic front view of a non-defective molded product, B1) is a graph showing a luminance value of a non-defective molded product, (C) is a schematic front view of a molded product having a defective gate, and (C1) is a graph showing a luminance value of a molded product having a defective gate.

[Explanation of symbols]

A resin molding device 1 resin molding machine 2 upper mold 3 lower mold 4 middle mold 10 product collector 20 carrier vehicle 40 saucer unit 44 saucer 45 guide plate 200 inspection device 210 lower inspection unit 220 upper inspection unit 230 discrimination unit ( (Example of counting means, residual inspection means, visual inspection part)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Nobu Hattori             Sumitomo Den 1-14 Nishi-Suehiro-cho, Yokkaichi-shi, Mie Prefecture             Sozo Co., Ltd. F term (reference) 2F065 AA53 AA61 BB05 CC00 FF04                       JJ03 PP11 QQ25 QQ31 RR08                 2G051 AA90 AB02 AB03 AB20 BA01                       BB01 CA03 CA11 CB01 DA01                       DA07 DA13 EA12 EA14 EA16                       EA17 EA19 ED07 ED11 ED23                 4F206 AM22 AP11 AP12 JA07 JL02                       JN41 JP01 JP14 JQ06 JQ90

Claims (5)

[Claims] 1. A resin molding inspection method used in combination with a resin molding device for molding a molded product with at least a pair of molds, comprising a receiving step of receiving a molded product after demolding while maintaining a posture during molding. A resin molding inspection method comprising: an image data acquisition step of acquiring image data of the received molded product; and a judgment step of judging whether the molding is good or bad based on the acquired image data. 2. The resin molding inspection method according to claim 1, wherein in the receiving step, a tray unit having an accommodation hole for individually accommodating a molded product is made to face a mold of the resin molding device and is accommodated in each accommodation hole. A resin molding inspection method comprising a step of accommodating a molded product. 3. The resin molding inspection method according to claim 2, wherein the image data acquisition step includes a step of reading each molded product accommodated in the accommodation hole of the tray unit with a linear image sensor. Resin molding inspection method to be. 4. The resin molding inspection method according to claim 2 or 3, wherein the receiving step includes a step of transporting the tray unit just below the die of the resin molding device, and a molded product present in the die during the transporting step. And a step of reading the same with a linear image sensor. 5. A resin molding apparatus comprising at least a pair of molds for molding a resin molded product, and a product collecting machine for taking out a molded product molded by the mold from the mold, wherein the product collecting machine comprises: A saucer unit that faces the mold in the open state and receives the molded product while maintaining the posture of the molded product, an imaging unit that acquires image data of the molded product received by this saucer unit, and the acquired image data A resin molding apparatus, comprising: a determination unit that determines whether the molding is good or bad based on the above.