JP3169301B2 - Automatic inspection system for fish eyes in resin - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for automatically inspecting fish eyes in a thermoplastic resin such as a vinyl chloride resin.

[0002]

2. Description of the Related Art It is preferable that a synthetic resin is ideally free of foreign matter and non-gelled particles. However, it is extremely difficult to produce a completely uniform product, and unnecessarily seeking such a product often involves the pursuit of excessive quality, resulting in high costs. Therefore, a synthetic resin manufacturing plant quantitatively inspects foreign substances and ungelled particles in the synthetic resin, and supplies a synthetic resin suitable for the quality required for the final product to the secondary processing.

[0003] Inspection of foreign substances and ungelled particles in a synthetic resin is called a fisheye inspection, and is visually and optically inspected. Specifically, spread the synthetic resin powder evenly,
Heterogeneous particles, ungelled particles, and foreign substances are searched for and counted with the naked eye, and the images are measured with a video camera. In some cases, a synthetic resin is formed into a sheet and foreign matter and fish eyes are measured. Depending on the number of fish eyes, we will supply the synthetic resin of the production lot for the appropriate use.

Conventionally, a sheet to be subjected to the above-mentioned inspection has been manufactured by a process shown in FIG. 10 using a resin kneading apparatus as shown in FIG.

In the resin kneading apparatus shown in FIG. 9, a pair of kneading rolls 1, 2 rotatable in the directions of arrows are opposed to each other at a small interval, and have a shape along a valley formed by the kneading rolls 1, 2. Weir plates 5a and 5b are provided, and the inside of the weir plates 5a and 5b becomes a substantially effective width of the kneading rolls 1 and 2.

[0006] The kneading rolls 1 and 2 of the apparatus are heated to a predetermined temperature, the interval between the kneading rolls 1 and 2 is adjusted to a predetermined minute interval, and the distance between the weir plates 5a and 5b is adjusted to a predetermined width. hand,
The kneading rolls 1 and 2 are rotated. As shown in FIG. 10A, a compound 36 of a synthetic resin is put into the valleys of the kneading rolls 1 and 2. One of the kneading rolls 1 and 2 is rotating at a high speed, and the other roll 2 is rotating at a low speed. The compound 36 of the synthetic resin is melted by heating from the kneading rolls 1 and 2 and adheres to the high-speed rotating roll 1, and a small amount partially adheres to the low-speed rotating roll 2, and partially passes through a minute interval. To fall on the tray 4. When the rotation of the rolls 1 and 2 continues while the compound 36 on the tray 4 is reloaded, the compound 36 of the synthetic resin adhering to the low-speed rotating roll 2 moves to the high-speed rotating roll 1. When the synthetic resin is transferred to the roll 1 rotating at a high speed, and the whole is attached, FIG.
As shown in, the screw rod supporting the shaft of the roll 1 is
By rotating the adjusting knobs 3a and 3b (see FIG. 9) to move the axis of the roll 1 forward or backward in the drawing, the minute interval between the rolls 1 and 2 is adjusted, and the roll 1 is wound around the roll 1 to form a molten synthetic resin sheet. Adjust the thickness to a predetermined thickness. Also, the setscrews 6a and 6b are loosened and the weir plates 5a and 5b
Is moved along the guide rod 9 to reduce the distance between the weir plates 5a and 5b. Further, a minute interval is set between the rolls 1 and 2, and the distance between the weir plates 5a and 5b is adjusted to a predetermined width. In this state, a cut is made from the end of the sheet with a spatula, and the sheet is folded back so that the sheet enters the sheet. This is repeated several times (see the chain line), so-called switching is performed. Thereby, the sheet wound around the roll is sufficiently kneaded. During this time, heat is received from the rolls 1 and 2, and since the rotational speeds of the rolls 1 and 2 are different, a shearing force is applied to the rolls 1 and 2 to generate heat, and they are uniformly kneaded while melting. Further, the minute interval between the rolls 1 and 2 is adjusted to the desired sheet thickness, the distance between the weir plates 5a and 5b is adjusted to the sheet width, and the synthetic resin sheet 10 wound around the roll 1 rotating at high speed. The sheet 10 is partially cut off from the roll 1 in anticipation of the time when is uniform, and the thickness is measured with a dial gauge. If the sheet 10 has the desired thickness,
The sheet 10 is cut along the roll 1, and the sheet 10 is picked out as shown in FIG.

[0007] The fisheye mixed in the sheet 10 is measured by an inspection apparatus shown in FIG. This inspection apparatus spreads a resin sheet 10 on a movable sample table 35, moves the sample table 35 while irradiating light with a light source sheet 31, and transmits light transmitted through the sheet 10 to a video camera. An image is taken at 30, and the number of fish eyes that appear one after another is counted by an arithmetic circuit 32 and recorded and output by a printer 34.

[0008]

In the process of producing a resin sheet for inspection using the above-described conventional resin kneading apparatus and then inspecting the fisheye, the synthetic resin falling from the minute interval of the kneading rolls is used. The re-feeding of the compound, turning back, cutting the sheet wrapped around the kneading rolls, measuring the thickness of the sheet, spreading the sheet on the sample table, and placing the inspection sheet on the sample table are all performed manually. Things.

Each operation requires skill. Due to slight differences depending on the operator, even if they are skilled, the resin sheet for inspection may be slightly different even if the synthetic resin is from the same production lot. The result was different. Further, the kneading roll is rotating at a considerably high temperature, and there is a risk of burns or damage to the fingers of the operator.

The present invention has been made in order to solve these problems. In performing a fisheye inspection of a synthetic resin, any worker can be used without any skill and without any skill. An object of the present invention is to provide an automatic fisheye inspection apparatus with excellent safety for efficiently and automatically performing reproducible inspection.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An automatic fisheye-in-resin inspection apparatus to which the present invention is applied to achieve the above object will be described below with reference to the drawings corresponding to the embodiments.

As shown in FIG. 1, the apparatus for automatically inspecting fish in a resin according to the present invention comprises a pair of kneading rolls 11 which form a valley where resin injected from above and opposed from each other at a minute interval. 12 at least one roll 1
Drive sources 13a and 1 in which two shaft support members displace the shaft interval
3b, a pair of weir plates 15a and 15b having a shape substantially along the valley portion and approaching without contact with the kneading rolls 11 and 12 are substantially formed by the kneading rolls 11 and 12. A sheet frame supply which is disposed at an effective width and is connected to the moving driving sources 16a and 16b in the same direction as the axial direction of the kneading rolls 11 and 12, and feeds the sheet frames 40 one by one toward the valley portion. Source 42 (see FIG. 4). Further, as shown in FIG.
At the discharge position of the inspection sheet formed by bonding the resin sheet 37 formed by kneading at 12 to the sheet frame 40, the inspection sheet conveying means 57 and 58, and the conveyance means 57 and 58 Placement table 59 for the inspection sheet
And a light source 64 and a video camera 65.

As shown in FIG. 2, a photographing unit comprising a light source 64 and a video camera 65 of the photographing apparatus, or a mounting table 59 for an inspection sheet is connected to a traveling drive source 66, and the photographing unit and the mounting table are connected. It is preferable to move relatively.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing the entire apparatus for automatically inspecting fish eyes in a resin to which the present invention is applied, in which a portion for manufacturing a sample sheet for automatic fish eye inspection is depicted. FIG. 2 is a schematic cross-sectional view of a main part of the automatic fisheye inspection apparatus, illustrating a portion where a manufactured sample sheet is conveyed and inspected.

Referring to FIG. 1, description will be given of a part for manufacturing a sample sheet in the automatic fisheye in resin inspection apparatus to which the present invention is applied. The apparatus shown in the figure is assembled on gantry 61 and 62 which are substantially symmetrical as a whole. Two pairs of kneading rolls 11 and 12 are axially supported between the mounts 61 and 62. The kneading rolls 11 and 12 are arranged in parallel, and they are close to each other and oppose each other to form a valley portion. Kneading rolls 11 and 12
Are connected to different drive motors, and the shaft supporting members of the kneading rolls 11 are arranged at fixed positions on the gantry 61 and 62. On both sides of the shaft supporting members of the kneading rolls 12, motors 13a are provided. When the motors 13a and 13b rotate, the kneading roll 12 is displaced in parallel and displaced to approach or separate from the kneading roll 11 when the motors 13a and 13b rotate. Indicator needles 14a and 14b are attached to the screw rod,
The distance between the kneading rolls 11 and 12 can be read. Each of the kneading rolls 11 and 12 has a built-in high-frequency induction coil and is connected to a power supply and is heated.

The pair of weir plates 15a and 15b regulate the spread of the resin kneaded by the kneading rolls 11 and 12, and the width between the weir plates 15a and 15b is substantially equal to that of the kneading rolls 11 and 12. Effective width is determined. The weir plates 15a and 15b are both slidably engaged with the guide rod 9 and screwed to the screw rods 23a and 23b, respectively.
The screw rod 23a is connected to the pulse motor 16a, and the screw rod 23b is connected to the pulse motor 16b. When the pulse motors 16a and 16b rotate, the barrier plates 15a and 15b approach or separate from each other, so that the effective width of the kneading rolls 11 and 12 changes.

In the device shown in FIG. 1, the endless belt shown in FIG.
Is arranged. The endless belt 17 is a kneading roll 11.1
2 has a width substantially the same as the substantial effective width thereof, and is suspended around shafts 24, 25, 26 and 27 which are supported by a belt frame 28. The shaft 24 is supported by mounts 61 and 62,
6 is engaged with an arc guide groove 29 centered on the shaft 24 on the gantry 61 and 62 sides. The air cylinder 18 is vertically rotatably mounted on the chassis plate suspended between the frames 61 and 62, and the plunger of the air cylinder 18 is connected to the belt frame 28. Therefore, the operation of the air cylinder 18 causes the non-assembled belt 17 to advance and retreat together with the belt frame 28 to contact or isolate the roll 11. Further, a belt scraper 20 is attached to the belt frame 28 in contact with the surface of the endless belt 17. A roll scraper 19 is attached in contact with the surface of the roll 12. Further, a cleaning roll 22 connected to an air cylinder 21 is attached to a lower portion of the kneading rolls 11 and 12 so as to be able to advance and retreat to a position where the cleaning roll 22 contacts the kneading rolls 11 and 12.

A sheet frame supply 42 is mounted on the gantry 61 and 62 via a mount 44. The sheet frame supply source 42 drops the sheet frames 40 one by one toward a valley formed by the kneading rolls 11 and 12.
The detailed cross section is shown in FIG. The main components of the sheet frame supply source 42 are disposed inside the housing 43.
A partition plate 41 is provided in the housing 43.
Is opened to drop the sheet frame 40. A large number of cardboard sheet frames 40 are used as partition plates 41.
An air cylinder 45 for holding the sheet frame 40 against the partition plate 41 is arranged. Above the partition plate 41, an upper suction plate 46 is connected to an air cylinder 47 so as to be vertically movable. Below the partition plate 41, a lower suction plate 48 is installed. The lower suction disk 48 is screwed into the screw rod 49 and is engaged with the guide rod. Since the screw rod 49 is connected to the motor 50, the lower suction disk 48 moves up and down by the rotation of the motor 50. Further, below the partition plate 41, a stopper 51 is connected to an air cylinder 52 so as to be movable forward and backward.

FIG. 2 shows the periphery of the pair of kneading rolls 11 and 12. Below the kneading rolls 11 and 12,
A guide plate 57 is provided, and a belt conveyor 58 is arranged following the guide plate 57. Further, a photographing device is provided adjacent to the belt conveyor 58. The photographing device includes an inspection sheet 37 on the mounting table 59 for the inspection sheet.
A light source 64 is provided below 40 and a video camera 65 is provided above, so that light transmitted through the sheet 37 can be photographed. The mounting table 59 for the inspection sheet is mounted on a belt conveyor 66, and the inspection sheet 37 or 40 conveyed from the belt conveyor 58 can be mounted thereon so as to be able to travel in the field of view of the video camera 65. . Therefore, the video camera 65 can successively photograph the entire surface of the seat 37 traveling in the photographing visual field range. Even if the mounting table 59 for the inspection sheet is fixed and the light source 64 and the video camera 65 are movable, the sheet 37
You can take a picture of the entire surface. If the video camera 65 has a high resolution and a wide-angle field of view, the entire surface of the sheet 37 can be photographed without providing such a movable mechanism.

FIG. 3 shows the periphery of the endless belt 17 shown in FIG. 2 in detail. As shown in FIG. 3, the endless belt 17 has substantially the same width as the substantial effective width of the kneading rolls 11 and 12, and the shaft 2 supported by the belt frame 28.
It is suspended at 4.25.26.27. The shaft 24 is pivotally supported by the mounts 61 and 62, and the shaft 26 is supported by the mounts 61 and 6.
It is engaged with an arc guide groove 29 centered on the shaft 24 on the second side. An air cylinder 18 is attached to the chassis plate suspended over the gantry 61 and 62 so as to be vertically rotatable,
The plunger of the air cylinder 18 is connected to the belt frame 28. Therefore, the operation of the air cylinder 18 causes the endless belt 17 to advance and retreat together with the belt frame 28 to come into contact with or separate from the roll 11. Further, a belt scraper 20 is attached to the belt frame 28 in contact with the surface of the endless belt 17. A roll scraper 19 is attached in contact with the surface of the roll 12.

The operation of the apparatus for automatically inspecting fish eyes in resin of the present invention of the above embodiment will be described below. First, a sheet for inspection of a sample resin is manufactured by the automatic fisheye inspection apparatus shown in FIG.

The kneading rolls 11 and 12 are energized to a high-frequency induction coil to raise the temperature to a predetermined temperature, and the motors 13a and 13b are started to read the indicating needles 14a and 14b to initialize the interval between the kneading rolls 11 and 12. After adjusting the setting, start the drive motors of the kneading rolls 11 and 12,
The rotation speed of one roll 11 is slightly higher than the rotation speed of the other roll 12. At this time, the air cylinder 55 is retracted, and the surface displacement meters 53 and 54 are both separated from the kneading roll 11. When the endless belt 17 is advanced and brought into contact with the roll 11 by operating the air cylinder 18, the endless belt 17 circulates by friction driving of the rotating roll 11. Next, it is determined. On the other hand, it is confirmed that the sheet frame 40 is stored in the housing 43 of the sheet frame supply source 42.

Compound of sample resin to be inspected (for example, vinyl chloride resin powder mixed with plasticizer,
The coloring agent and the like are mixed as necessary) in advance, and as shown in FIG. 5, a compound 36 of the raw material resin is put into a valley portion of the kneading rolls 11 and 12 from a beaker. Then, most of the compound 36 is a high-speed rotating roll 1
1 is slightly adhered to the low-speed rotating roll 12, scraped off by the roll scraper 19 in contact with the surface of the roll 12,
Fall on 7 Further, a part of the injected compound 36 falls directly onto the endless belt 17 through a minute interval. These compounds 36 that have fallen on the endless belt 17 are transported upward because the endless belt 17 is circulating, and are pressed against the high-speed rotating roll 11 that is in contact with the endless belt 17, and most of the compound adheres. I do. The compound 36 that has not adhered here is further transported upward, but is scraped off by the belt scraper 20 that is in contact with the surface of the endless belt 17, and falls into a contact gap with the endless belt 17, Then, it adheres to the high-speed rotating roll 11. The compound 36 thus input completely adheres to the high-speed rotating roll 11. Compound 36 is no longer dropped, and kneading rolls 11 and 12 are removed.
When the sensor provided at the lower part of the cylinder no longer detects the compound 36, the air cylinder 18 is suctioned, and the endless belt 17 is rotated about the shaft 24 together with the roll scraper 19 and the belt scraper 20 in the direction indicated by the chain line. It turns and retreats, separates from the kneading roll 11, and the lower portions of the kneading rolls 11 and 12 are opened.

High-speed rotating roll 11 and low-speed rotating roll 12
As the rotation continues, the compound becomes a sheet 37 on the high-speed rotating roll 11 as shown in FIG. In a valley portion where the high-speed rotation roll 11 and the low-speed rotation roll 12 meet, a resin pool 37a is formed. The pool 37a is what is called a bank. Here, the resin is turned back. When the motors 13a and 13b are rotated, the kneading rolls 12 move in parallel as shown by the dashed line in FIG. 6, and the distance between the kneading rolls 11 and 12 changes. When the pulse motors 16a and 16b are rotated at the same time,
The kneading roll 11 is moved closer or apart from 5a and 15b.
-The effective width of 12 changes. At this time, the rotation amounts of the motors 13a and 13b and the pulse motor 16
The rotation amounts of a and 16b are synchronized, and the kneading rolls 11 and 1
The width between the weir plates 15a and 15b is reduced by the amount corresponding to the increase in the distance between the kneading rolls 11 and 12, and the width between the weir plates 15a and 15b is increased by the amount corresponding to the decrease in the distance between the kneading rolls 11 and 12. 37a is adjusted to an appropriate amount. By adjusting the amount of the bank 37a to an appropriate amount, the kneading of the resin can be sufficiently performed, and the produced resin sheet for inspection can be uniform. After the switching is completed, the motors 13a and 13
b, the interval between the kneading rolls 11 and 12 is set to the desired interval,
That is, the thickness of the inspection resin sheet to be manufactured,
Weir plates 15a and 15 are driven by pulse motors 16a and 16b.
The width between b is set to the intended width, that is, the width of the inspection resin sheet to be manufactured.

In this state, the rotation of the kneading rolls 11 and 12 is further continued for a while and then stopped, and the thickness of the sheet 37 formed on the kneading roll 12 is measured. The air cylinder 55 shown in FIG. 1 is operated to cause the surface displacement meter 53 and the surface displacement meter 54 to advance. Then the surface displacement meter 5
The roller at the tip of No. 3 rotates by contacting the surface of the sheet 37, and the roller at the tip of the surface displacement meter 54 comes into direct contact with the kneading roll 11 and rotates. By calculating the difference between the output value of the surface displacement meter 53 and the output value of the surface displacement meter 54, the thickness of the sheet 37 can be known.

When it is confirmed by this measurement that the thickness of the sheet 37 is as expected, the operation for supplying one of the sheet frames 40 from the sheet frame supply source 42 is started.
Before feeding, the kneading rolls 12 are moved in parallel by rotating the motors 13a and 13b, and the gap between the kneading rolls 11 and 12 is increased to be substantially the same as the thickness of the sheet frame 40,
In addition, the kneading roll 11 is slightly rotated to move the bank 37a located at the valley between the kneading rolls 11 and 12 downward. The sheet frame 40 is supplied in the state of FIG.

As shown in FIG. 4, a large number of sheet frames 40 are housed in the housing 43,
5 presses and holds the partition plate 41. In this state, the uppermost sheet of the sheet frame 40 is suction-held by the upper suction plate 46, and then the air cylinder 47 is operated to lift it. When the air cylinder 52 is operated and the stopper 51 pushes the second and subsequent sheet frames 40 to retract the air cylinder 45, the second and subsequent sheet frames 40 enter the interior of the housing 43. When the stopper 51 is retracted by the air cylinder 52 and the lower suction plate 48 is sucked, and then the suction of the upper suction plate 46 is released, the uppermost sheet frame 40 is released.
Is held by the lower suction plate 48. Here, when the motor 50 is rotated, the lower suction plate 48 is lowered by the screw rod 49, and one sheet frame 40 is lowered to the position indicated by the chain line.

Next, when the suction of the lower suction board 48 is released,
The sheet frame 40 falls, and the state shown in FIG. 7 is obtained. The sheet 37 is scissors and cut by the kneading roll 11 and the corner of the sheet frame 40 due to the impact of the falling sheet frame 40. Here, when the kneading rolls 11 and 12 are rotated at the same rotation speed or slightly different rotation speeds, the sheet 37 is pressed against the sheet frame 40 by the kneading rolls 11 and 12, as shown in FIG. Continue from the cut end to the sheet frame 40
Then, the sheet 37 is adhered. Since the kneading rolls 11 and 12 have substantially the same rotation speed, the sheet 37 stuck to the sheet frame 40 is satisfactorily generated at the lower portion as the kneading rolls 11 and 12 rotate, and falls along the guide plate 57.

The inspection sheets 37 and 40 thus manufactured and dropped fall on the belt conveyor 58 from the guide plate 57, are conveyed, and move onto the inspection sheet mounting table 59. Here, the inspection sheet 3 on the mounting table 59 by the belt conveyor 66 while operating the light source 64 and the video camera 65.
Drive 7.40. Then, the video camera 65 captures an image of the fisheye in the sheet 37 by the light transmitted through the sheet 37. The number of fish eyes appearing one after another can be counted by an arithmetic circuit and recorded and output by a printer, or can be output by a monitor.

On the other hand, when the inspection sheet has been dropped along the guide 57, the air cylinder 21 is operated, and
The cleaning roll 22 is brought into contact with the kneading rolls 11 and 12 and rotated to clean the surfaces of the kneading rolls 11 and 12. At the same time, the surface of the endless belt 17 is cleaned with the belt scraper 20.

In this way, simply by putting in the compound of the sample resin to be inspected, it is possible to automatically and quantitatively inspect fish eyes caused by foreign substances, ungelled particles, and the like contained in the sample resin.

[0033]

As described above in detail, according to the apparatus for automatically inspecting fish eyes in a resin according to the present invention, any operator does not need to be skilled and does not rely on humans to efficiently perform automatic operations. Thus, the inspection work of fish eye of synthetic resin can be safely performed. And the inspection result is accurate and highly reproducible.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire apparatus for automatically inspecting fish eyes in resin to which the present invention is applied.

FIG. 2 is a side view schematically showing a lower portion of the apparatus of the embodiment.

FIG. 3 is a perspective view showing a lower rear portion of the apparatus of the embodiment.

FIG. 4 is a sectional view showing an upper part of the apparatus of the embodiment.

FIG. 5 is a view showing one operation process of the apparatus of the embodiment.

FIG. 6 is a view showing one operation process of the apparatus.

FIG. 7 is a view showing one operation process of the apparatus.

FIG. 8 is a view showing one operation step of the apparatus.

FIG. 9 is a perspective view showing an entire example of a conventional resin kneading apparatus.

FIG. 10 is a view showing a conventional process for manufacturing a resin sheet for inspection.

FIG. 11 is a schematic view showing a conventional fisheye inspection apparatus.

[Explanation of symbols]

1, 2, 11, 12 are kneading rolls, 3a, 3b are adjustment knobs, 4 is a tray, 5a, 5b, 15a, 15b is a weir plate, 6a, 6b is a set screw, 8 is a formwork, 9 is a guide rod,
10 is a sheet, 13a and 13b are motors, 14a and 1
4b is a pointer, 16a and 16b are pulse motors, 17
Is an endless belt, 18.21.45.47.52.55
Is an air cylinder, 19 is a scraper for rolls, 20
Is a belt scraper, 22 is a cleaning roll, 23a · 2
3b / 49 is a screw rod, 24/25/26/27 is a shaft, 2
8 is a belt frame, 29 is an arc guide groove, 30 and 65 are video cameras, 31 and 64 are light sources, 32 is an arithmetic circuit, 34 is a printer, 35 is a sample table, 36 is a compound, 37
Is a sheet, 37a is a pool, 40 is a sheet frame, 41 is a partition plate, 42 is a sheet frame supply source, 43 is a housing, 46 is an upper suction disk, 48 is a lower suction disk, 50 is a motor, 51 is a stopper, 53 54 is a surface displacement meter, 57 is a guide plate, 58
66 is a belt conveyor, 59 is a sheet mounting table for inspection,
61 and 62 are mounts.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takashi Kimura 2-16-2 Noguchicho, Higashimurayama-shi, Tokyo Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Keisuke Kato 2-16- Noguchicho, Higashimurayama-shi, Tokyo 2 Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Yuji Nogami 3-43-2 Ebisu, Shibuya-ku, Tokyo Nikkiso Co., Ltd. (72) Inventor Yoshihisa Hiraguri 2-16- Noguchicho, Higashimurayama-shi, Tokyo 2 Higashimurayama Works, Nikkiso Co., Ltd. (72) Takashi Chino, Inventor 3-43-2 Ebisu, Shibuya-ku, Tokyo Nikkiso Co., Ltd. (72) Takao Kawamura, Inventor 3-43-2, Ebisu, Shibuya-ku, Tokyo Issue Date Inside Kiso Co., Ltd. (72) Inventor Jun Tsutsumi 2-16-2 Noguchicho, Higashimurayama-shi, Tokyo Nikkiso Co., Ltd. Higashimurayama Works (72) Inventor Masaru Takeuchi Kashima-gun, Ibaraki No. 1, Towada, Sumachi, Kashima Plant Quality Assurance Department, Shin-Etsu Chemical Co., Ltd. JP-A-50-95860 (JP, A) JP-A-6-123712 (JP, A) JP-A-61-176838 (JP, A) JP-A-61-181948 (JP, A) (JP, U) Patent 3148879 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01N 21/84-21/958 B29B 7/72 G01B 11/30

Claims (2)

(57) [Claims] 1. A pair of kneading rolls forming a valley portion in which resin injected from above opposed to each other at a small interval is formed, and a shaft support member of at least one of the kneading rolls is used as a drive source for displacing the shaft interval. A pair of weir plates that are connected and are substantially in line with the valley portion and approaching without contacting the kneading roll are separated by a substantial effective length of the kneading roll, and the shaft of the kneading roll is A sheet frame supply source configured to be connected to a moving drive source in the same direction as the direction and to feed the sheet frames one by one toward the valley portion, and formed by kneading with the pair of kneading rolls. A photographing apparatus including a transport unit for the inspection sheet at a discharge position of the inspection sheet formed by bonding the sheet to a sheet frame, and a mounting table, a light source, and a video camera for the inspection sheet following the transport unit Is arranged Automatic fish-eye inspection system in resin. 2. A photographing unit comprising a light source and a video camera of the photographing device, or a mounting table for an inspection sheet is connected to a traveling drive source, and the photographing unit and the mounting table move relatively. The apparatus for automatically inspecting fish eyes in a resin according to claim 1, wherein: