JP3148879B2 - Resin kneading device, resin sheet manufacturing device for inspection, resin sheet manufacturing method for inspection - 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 kneading a thermoplastic resin such as a vinyl chloride resin, an apparatus and a method for manufacturing a resin sheet for inspecting such a 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-described inspection has been manufactured by a process shown in FIG. 9 using a resin kneading apparatus as shown in FIG.

In the resin kneading apparatus shown in FIG. 8, 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 weir plates 5a and 5b are provided.
The inside of b is the substantial 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. 9A, 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. Compound 36 of synthetic resin is kneading roll 1
2) Melting by heating from 2 causes a large amount to adhere to the high-speed rotating roll 1, a small amount partially adheres to the low-speed rotating roll 2, and a portion falls onto the tray 4 through a minute interval. 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 adheres, the screw rod supporting the shaft of the roll 1 is adjusted by adjusting knobs 3a and 3b as shown in FIG. (See FIG. 8) to move the axis of the roll 1 forward or backward in the drawing to adjust the minute interval between the rolls 1 and 2 and to reduce the thickness of the molten synthetic resin sheet wound around the roll to a predetermined thickness. Adjust it.
1 Also, the set screws 6a and 6b are loosened to move the weir plates 5a and 5b along the guide rod 9, so that the weir plates 5a and 5b
And close the distance. 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 1 is sufficiently kneaded. During that time, it receives heat from rolls 1 and 2,
Further, since the rotation speeds of the rolls 1 and 2 are different from each other, a shear force is applied to the rolls 1 and 2 so that the rolls themselves generate heat and are uniformly kneaded while being melted. Further, the minute interval between the rolls 1 and 2 is adjusted to the desired thickness of the sheet, the distance between the weir plates 5a and 5b is adjusted to the sheet width, and after a predetermined time has elapsed, the sheet is wound around the roll 1 rotating at a high speed. When the synthetic resin sheet 10 becomes uniform, a part of the sheet 10 is cut from the roll 1 and the thickness is measured with a dial gauge. When the sheet 10 has a desired thickness, cut the sheet 10 along the roll 1,
As shown in FIG. 9C, the sheet 10 is picked up.

In the sheet 10, fish eyes mixed in are measured by an inspection device shown in FIG. This inspection apparatus spreads the resin sheet 10 on a movable sample table 35 and irradiates light with a light source 31 to the sample table 35.
Is moved, the light transmitted through the sheet 10 is photographed by the video camera 30, and the number of fish eyes reflected one after another is counted by the arithmetic circuit 32 and recorded and output by the printer 34.

[0008]

In the process of manufacturing a resin sheet for inspection using the conventional resin kneading apparatus described above, the re-injection work, the turn-back work, and the kneading of the synthetic resin compound falling from the minute interval of the kneading rolls are performed. The work of cutting the sheet wound around the roll, the work of measuring the thickness of the sheet, the work of spreading the sheet, and the like are all performed manually.

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.

[0010] The present invention has been made to solve these problems. In producing a synthetic resin inspection sheet, any worker can be employed without relying on humans and without any skill. Provides highly safe resin kneading equipment, resin sheet manufacturing equipment for inspection, and resin sheet manufacturing method for inspection to efficiently and automatically produce high-quality resin sheets for inspection with high reproducibility. Is what you do.

[0011]

The resin kneading 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, a resin kneading apparatus according to the present invention comprises a pair of kneading rolls 11 and 12 which oppose each other at a minute interval and form a valley where a resin injected from above is accumulated.
The shaft support member of at least one of the rolls 12 is connected to drive sources 13a and 13b for displacing the shaft interval, and is driven forward and backward.
The cleaning roll 22 connected to the source 21 is a pair of kneading rolls.
So that it can move back and forth to the position where it contacts the lower part of
Weir plate 1 that is attached and has a shape substantially along the valley portion and is approaching without contact with the kneading rolls 11 and 12.
A pair of 5a and 15b is disposed so as to be separated from a substantial effective width of the kneading rolls 11 and 12 and connected to moving drive sources 16a and 16b in the same direction as the axial direction of the kneading rolls 11 and 12. It is characterized by:

FIG. 2 is a sectional view of the resin kneading apparatus of the present invention, which is an endless belt 17 having substantially the same effective width as the kneading rolls 11 and 12 as shown in FIG. An endless belt 17 that circulates in contact with one of the rolls 11 from below the minute interval may be connected to and attached to a displacement drive source 18 that displaces between a position in contact with the roll 11 and a position away from the roll 11.

An endless belt 17 also shown in FIGS.
A resin kneading device having a belt scraper 20 for scraping off the surface of the endless belt 17 above a position in contact with the one roll 11, and the one roll 11 above the circulating endless belt 17 Another roll 12
It is preferable to have a scraper 19 for a roll that scrapes off the surface of the roll.

[0015]

A sheet manufacturing apparatus for resin inspection to which the present invention is applied to achieve the above object will be described with reference to the drawings corresponding to the embodiments.

As shown in FIG. 1, a resin manufacturing sheet manufacturing apparatus according to the present invention comprises a pair of kneading rolls 11 and 12 which form a valley where resin injected from above is opposed to each other at a minute interval. The shaft support member of at least one of the rolls 12 is connected to drive sources 13a and 13b for displacing the shaft interval, and has a shape substantially along the valley portion and
Weir plate 15a approaching without contact with 1 ・ 12
A pair of the valleys 15b is disposed so as to be separated from a substantial effective width of the kneading rolls 11 and 12 and connected to movement driving sources 16a and 16b in the same direction as the axial direction of the kneading rolls 11 and 12. A sheet frame supply source 42 (see FIG. 3) for feeding the sheet frames 40 one by one toward the portion is provided.

1 is a sheet manufacturing apparatus for resin inspection according to the present invention, also shown in FIG. 1, wherein a surface inside the substantial effective width of one of the kneading rolls 11, 12 is formed; It is preferable that the gauges 53 and 54 for measuring the relative distance difference from the outer surface be connected to the forward / backward drive source 55.

The gauges 53 and 54 may be a surface displacement meter for measuring a surface inside the effective width of the one roll 11 and a surface displacement meter for measuring a surface outside the effective width.

A method of manufacturing a resin sheet for inspection to which the present invention is applied to achieve the above object will be described with reference to FIGS. 4, 5, 6 and 7 corresponding to the embodiments. .

As shown in FIG. 4, a pair of heated kneading rolls 11 and 12 are opposed to each other at a small interval, and one of the rolls 11 is rotated at a high speed and the other roll 12 is rotated at a low speed so that the drawing direction is from above. (See arrow), and the resin 36 is poured into the valley portions of the pair of kneading rolls 11 and 12 from above, and the resin is melted and adhered to the high-speed rotating rolls 11.
Further, the resin 36 falling from below the minute interval is applied to the belt 1.
The sheet is conveyed at 7 and brought into contact with the high-speed rotating roll 11 to be melted and adhered. As shown in FIG. 5, a pair of kneading rolls 11
After varying the minute interval of the kneading rolls 12 (see the dashed line) and changing the effective effective width of the kneading rolls 11 and 12 in the axial direction to knead the melt-adhered resin, a pair of kneading rolls 11 and 12 are formed. Is adjusted to a predetermined interval, and the substantial effective width in the axial direction of the kneading roll is adjusted to a predetermined width. As shown in FIG. 6 and FIG.
The sheet-shaped resin 37 on the high-speed rotating roll 11 having a predetermined width is brought into contact with the sheet frame 40 and transferred to manufacture a resin sheet for inspection.

In the method of manufacturing a resin sheet for inspection, as shown in FIG. 7, when the sheet-like resin 37 on the high-speed rotating roll 11 is brought into contact with the sheet frame 40 and transferred, the high-speed rotating roll 11 It is preferable to make the rotation speed of the rotating rolls 12 the same.

[0023]

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

FIG. 1 is a perspective view showing an entire embodiment of a sheet manufacturing apparatus for resin inspection to which the present invention is applied. A resin kneading device is incorporated in a part of a resin manufacturing sheet manufacturing device.

First, a resin kneading apparatus to which the present invention is applied will be described. The resin kneading apparatus shown in FIG. 1 is entirely assembled on gantry 61 and 62 which are substantially symmetrical in the left and right directions. Stand 61
A pair of kneading rolls 11 and 12 are supported between the shafts 62 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. The rotating shafts of the 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 frames 61 and 62. Are screwed into screw rods connected to the motors 13a and 13b. When the motors 13a and 13b rotate, the kneading roll 12 is displaced in parallel to be displaced and approaches or separates from the kneading roll 11. I have. Pointing needles 14a and 14b are attached to the screw rod, and 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 apparatus shown in FIG. 1, the endless belt 17 shown in FIG. 2 is provided in a portion which is not drawn on the back side in FIG. The endless belt 17 is composed of kneading rolls 11 and 12.
Has substantially the same width as the effective effective width of the belt frame 2
8 around the shafts 24, 25, 26, 27. The shaft 24 is supported by mounts 61 and 62,
Are engaged with an arc guide groove 29 centered on the shaft 24 on the gantry 61 and 62 sides. An air cylinder 18 is attached to the chassis plate suspended between the frames 61 and 62 so as to be vertically rotatable, and a 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. The 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. Furthermore, kneading roll 11
A cleaning roll 22 connected to an air cylinder 21 is attached to a lower portion of the air cylinder 12 so as to be able to advance and retreat to a position where the cleaning roll 22 comes into contact with the kneading rolls 11 and 12.

The resin kneading apparatus to which the present invention is applied has the configuration as described above. Further, an embodiment of a resin inspection sheet manufacturing apparatus to which the present invention is applied will be described below.
The sheet manufacturing apparatus for resin inspection to which the present invention is applied is obtained by adding the following configuration to the above-described resin kneading apparatus.

In the apparatus shown in FIG. 1, a sheet frame supply source 42 is mounted on mounts 61 and 62 via a mount 44. The sheet frame supply source 42 includes kneading rolls 11 and 12.
The sheet frames 40 are dropped one by one toward the valley portion formed by the above, and a detailed cross section thereof 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, and the lower part of the partition plate 41 is opened to drop the sheet frame 40. A large number of cardboard sheet frames 40 are stored leaning against the partition plate 41 and the sheet frames 4 are stored.
An air cylinder 45 for holding the partition plate 41 at 0 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.

Further, as shown in FIG. 1, the sheet manufacturing apparatus for resin inspection has a surface displacement abutting on the surface of the roll 11 between the weir plates 15a and 15b (ie, inside the substantial effective width of the roll 11). And a surface displacement meter 54 that contacts the surface of the roll 11 outside the barrier plates 15a and 15b (that is, outside the effective width of the roll 11) and is connected to an air cylinder 55 so as to be able to advance and retreat. Has been established.
Each of the surface displacement meters 53 and 54 has a probe at the tip as a roller, which expands and contracts following a minute displacement, and electrically outputs the amount of expansion and contraction.

The operation steps of the sheet manufacturing apparatus for resin inspection according to the present invention of the above embodiment will be described, and an embodiment of a method for manufacturing a resin sheet for inspection to which the present invention is applied will be described below.

In the sheet manufacturing apparatus for resin inspection shown in FIG. 1, the kneading rolls 11 and 12 are energized to a high-frequency induction coil to raise the temperature to a predetermined temperature.
b, the pointers 14a and 14b are read, and the distance between the kneading rolls 11 and 12 is adjusted to the initial setting. Then, the drive motor of the kneading rolls 11 and 12 is started, and the rotation speed of one roll 11 is reduced to the other. Slightly higher than the rotation speed of the roll 12. At this time, the air cylinder 55 is retracted, and the surface displacement meters 53 and 54 are both
Keep away from 1. Activate the air cylinder 18,
When the endless belt 17 advances and comes into contact with the roll 11, the endless belt 17 circulates by the friction drive of the rotating roll 11. 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.

A resin compound (for example, a mixture of a vinyl chloride resin powder with a plasticizer and a stabilizer, and a colorant or the like, if necessary) is prepared in advance as a raw material of a sheet for resin inspection to be produced. Keep it.

In this state, as shown in FIG. 4, a compound 36 of the raw material resin is put into a valley portion of the kneading rolls 11 and 12 from a beaker. As a result, most of the compound 36 melts and adheres to the high-speed rotating roll 11, but a small amount partially adheres to the low-speed rotating roll 12, and is scraped off by the roll scraper 19 in contact with the surface of the roll 12. It falls on the terminal belt 17. 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 onto the endless belt 17 are
7 is circulated, and is conveyed upward, and the endless belt 1
7 is pressed against the high-speed rotating roll 12 in contact with
Most stick. 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 12. The compound 36 charged in this way is completely rotated by the high-speed rotating roll 11.
Adheres to When the compound 36 stops falling and the sensor provided below the kneading rolls 11 and 12 no longer detects the compound 36, the air cylinder 1
When the suction operation of the belt 8 is performed, the endless belt 17 rotates with the roll scraper 19 and the belt scraper 20 around the shaft 24 in the direction indicated by the dashed line, moves away from the kneading roll 11, and moves away from the kneading rolls 11 and 12. The lower part is opened.

High-speed rotating roll 11 and low-speed rotating roll 12
As the rotation continues, the compound turns into 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, kneading of the resin is sufficiently performed. When the motors 13a and 13b are rotated, the kneading rolls 12 move in parallel as shown by a chain line in FIG. 5, and the distance between the kneading rolls 11 and 12 changes. When the pulse motors 16a and 16b are rotated, the weir plate 15
a and 15b approach or separate from each other and the kneading rolls 11
Twelve effective widths vary. Kneading rolls 11 and 1
2 and the width between the weir plates 15a and 15b are adjusted as predetermined to knead the resin. At this time, the motor 13
a and 13b, and the pulse motors 16a and 1
6b, the width between the weir plates 15a and 15b is reduced by an amount corresponding to the increase in the distance between the kneading rolls 11 and 12, and the amount of the rotation is reduced by an amount corresponding to the decrease in the distance between the kneading rolls 11 and 12. The width between the weir plates 15a and 15b may be increased so that the amount of the bank 37a becomes 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 kneading is completed, the interval between the kneading rolls 11 and 12 is set to the desired interval by the motors 13a and 13b, that is, the thickness of the inspection resin sheet to be manufactured, and the damping plates 15a and 15b are The width between them is adjusted to the desired width, that is, the width of the resin sheet for inspection to be manufactured.

In this state, the thickness of the sheet 37 formed on the kneading rolls 11 is measured while continuing to rotate the kneading rolls 11 and 12 for a while. The air cylinder 55 shown in FIG.
To advance. Then, the roller at the tip of the surface displacement meter 53 comes into contact with the surface of the sheet 37 and rotates, 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 of supplying one sheet frame 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. 3, 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 plate 48 is released,
The sheet frame 40 falls, and becomes the state shown in FIG. 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. When the kneading rolls 11 and 12 are rotated at the same rotation speed or a slightly different rotation speed, the sheet 37 is pressed against the sheet frame 40 by the kneading rolls 11 and 12, as shown in FIG. So, the sheet frame 4
At 0, 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 abundantly output downward as the kneading rolls 11 and 12 rotate.
It falls along the guide 57.

When the production of the intended resin sheet for inspection is completed and the resin sheet falls along the guide 57, the air cylinder 21 is operated, and the cleaning roll 22 is moved to the kneading rolls 11.1.
2 and rotate 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.

The sheet 37 attached to the sheet frame 40 manufactured as described above can be used to measure, for example, fish eyes mixed in by the inspection apparatus shown in FIG.

[0042]

As described in detail above, according to the resin kneading apparatus of the present invention, any worker can use a uniform, high-quality and efficient automatic machine without relying on manual labor. Thus, the kneading operation of the synthetic resin can be safely performed. Further, according to the resin sheet manufacturing apparatus for inspection of the present invention, according to the manufacturing method, without relying on humans, without the need for skill,
Any worker can automatically and efficiently produce a reproducible, high-quality resin sheet for inspection.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire embodiment of an inspection resin sheet manufacturing apparatus to which the present invention is applied.

FIG. 2 is a perspective view showing a lower rear portion of the apparatus of the embodiment.

FIG. 3 is a sectional view showing an upper portion of the apparatus of the embodiment.

FIG. 4 is a cross-sectional view schematically showing a lower portion of the apparatus of the embodiment.

FIG. 5 is a view showing one step of an embodiment of a method of manufacturing a resin sheet for inspection to which the present invention is applied.

FIG. 6 is a view showing one step of the embodiment of the manufacturing method.

FIG. 7 is a view showing one step of the embodiment of the manufacturing method.

FIG. 8 is a perspective view showing an entire example of a conventional resin kneading apparatus.

FIG. 9 is a diagram showing steps of a conventional method for manufacturing a resin sheet for inspection.

FIG. 10 is a schematic diagram 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, 9 is a guide rod, 10 is a sheet, 13a 13b is a motor, 14a and 14b are pointers, 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, and 20 is a belt. Scraper, 22 is a cleaning roll, 23a, 23b, 49
Is a screw rod, 24, 25, 26 and 27 are shafts, 28 is a belt frame, 29 is an arc guide groove, 30 is a video camera, 31 is a light source, 32 is an arithmetic circuit, 34 is a printer, 35 is a sample table, and 36 is 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 plate, 48 is a lower suction plate, 50 is a motor, and 51 is a motor. A stopper, 53 and 54 are surface displacement meters, 57 is a guide, and 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, Shin-Etsu Chemical Co., Ltd.Kashima Plant Quality Assurance Department (72) Inventor, Hideo Yoshikoshi No. 1, Kazu-cho, Kashima-gun, Ibaraki Prefecture, Kazuno Plant, Kashima Plant Quality Assurance Department (56) Reference JP-A-50-95860 (JP, A) JP-A-51-10373 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29B ^7/ 00-7/94 G01N 21/00 -21/958

Claims (8)

(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. Cleaning connected and connected to the drive source
Roll to the position where it contacts the lower part of the pair of kneading rolls.
A pair of weir plates which are mounted so as to be able to advance and retreat, and which are substantially along the valley portion and approach without contacting with the kneading roll, are separated by a substantial effective width of the kneading roll, and A resin kneading apparatus, which is provided so as to be connected to a moving drive source in the same direction as the axial direction of a kneading roll. 2. An endless belt having a width substantially equal to a substantial effective width of the kneading roll, wherein the endless belt circulating in contact with one of the rolls from below the minute interval contacts the roll. 2. The resin kneading apparatus according to claim 1, wherein the resin kneading apparatus is connected to and attached to a displacement driving source that displaces the position between the position and the position to be separated. 3. A scraper for a belt, which scrapes off the surface of the endless belt above a position where it contacts the one roll, and a surface of a roll different from the one roll above the endless belt circulating. The resin kneading apparatus according to claim 2, further comprising a scraper for a roll that scrapes off the scraper. 4. A pair of kneading rolls forming a valley portion in which resin injected from above opposed to each other at a small interval and having a shaft supporting member of at least one of the kneading rolls is driven by 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 for feeding the sheet frames one by one toward the valley portion, the sheet frame supply source being provided so as to be connected to a moving drive source in the same direction as the direction, and being provided. apparatus. 5. A gauge for measuring a relative distance difference between a surface inside the effective width of one of the kneading rolls and a surface outside the effective width of the one of the kneading rolls is provided. The sheet manufacturing apparatus for resin inspection according to claim 4 . 6. The gauge has a surface displacement meter for measuring a surface inside the effective width of the one roll and a surface displacement meter for measuring a surface outside the effective width, which are connected to a reciprocating drive source. The sheet manufacturing apparatus for resin inspection according to claim 5 , wherein: 7. A pair of heated kneading rolls are opposed to each other at a small interval, and one of the rolls is rotated at a high speed and the other roll is rotated at a low speed in a drawing direction from above,
Inject resin from above into the valley of the pair of kneading rolls,
The resin is melted and adhered to the high-speed rotating roll, and the resin falling from below the minute interval is received by a belt and conveyed, and is brought into contact with the high-speed rotating roll to be melt-adhered. After kneading the melt-adhered resin by changing the effective width of the roll in the axial direction, the minute interval between the pair of kneading rolls is adjusted to a predetermined interval, and the effective effective width in the axial direction of the kneading roll is adjusted. A method for producing a resin sheet for inspection, wherein a sheet-like resin on a high-speed rotating roll having a predetermined thickness and a predetermined width is adjusted by adjusting the width to a predetermined width and brought into contact with a sheet frame to transfer the resin. 8. The method for manufacturing a resin sheet for inspection according to claim 7 , wherein when the sheet-like resin on the high-speed rotating roll is brought into contact with the sheet frame and transferred, the rotation speeds of the high-speed rotating roll and the low-speed rotating roll are changed. A method for manufacturing a resin sheet for inspection, comprising: