WO1994019680A1

WO1994019680A1 - Automatic inspection apparatus for fish eye in resin, and apparatus and method for producing resin sheet for inspection

Info

Publication number: WO1994019680A1
Application number: PCT/JP1994/000309
Authority: WO
Inventors: Kenzo Kaminaga; Masaaki Suzuki; Takashi Kimura; Keisuke Kato; Yuji Nogami; Yoshihisa Hirakuri; Takashi Chino; Takao Kawamura; Atsushi Tsutsumi; Masaru Takeuchi; Hideo Yoshikoshi
Original assignee: Nikkiso Co., Ltd.; Shin-Etsu Chemical Co., Ltd.
Priority date: 1993-02-25
Filing date: 1994-02-25
Publication date: 1994-09-01

Abstract

A shaft support member of at least one (12) of a pair of kneading rolls (11, 12) opposing each other with a very small gap between them and forming a valley portion, in which a resin charged from above stays, is connected to a driving source which changes a shaft gap, and a pair of weir plates (15b) having a shape substantially in conformity with the shape of the valley portion and adjacent to the kneading rolls (11, 12) without coming into contact with them are connected to a moving driving source in the axial direction of the kneading rolls (11, 12) while being spaced apart by a substantial effective width of the kneading rolls (11, 12). A sheet frame supply source supplies sheet frames (40) one by one toward the valley portion. Conveyor means (57, 58) for an inspection sheet is disposed at a discharge position of the inspection sheet, which is formed by bonding a resin sheet (37) kneaded and formed by a pair of kneading rolls (11, 12) and bonded to the sheet frame (40), and a table (59) for the inspection sheet and an imaging apparatus including a light source (64) and a video camera (65) are successively disposed downstream of the conveyor means (57, 58).

Description

Description Automatic inspection equipment for fishery in resin, manufacturing equipment for resin sheet for inspection, manufacturing method

The present invention relates to an apparatus for automatically inspecting fish in a thermoplastic resin such as a vinyl chloride resin, an apparatus for automatically manufacturing a resin sheet serving as a sample for such an inspection, and an apparatus for inspection. The present invention relates to a method for automatically manufacturing a resin sheet to be a sample. Background art

Ideally, the synthetic resin preferably does not contain any foreign matter or non-homogeneous particles such as ungelled particles. However, it is extremely difficult to produce a completely uniform product, and unnecessarily seeking such a product often involves the pursuit of excess quality and is costly. Therefore, synthetic resin manufacturing plants quantitatively inspect foreign materials and ungelled particles in synthetic resin, and supply synthetic resin that meets the quality required for final products to secondary processing.

Inspection for foreign matter and ungelled particles in synthetic resin is called fish inspection, and is visually and optically inspected. Specifically, the synthetic resin powder is spread evenly, and observed with the naked eye to find and count heterogeneous particles, ungelled particles, and foreign substances, and to measure by shooting with a video camera. In some cases, synthetic resin is molded into a sheet to measure foreign matter / fissure. Depending on the quantity of fisheries, the synthetic resin in the production mouth will be supplied for suitable use.

Sheets to be subjected to the above inspection were manufactured by a roll mill as a kneading apparatus. The roll mill is provided with a pair of two heated kneading rolls, and the interval between the two kneading rolls is adjustable. The two kneading rolls are heated to a predetermined temperature in accordance with the melting point of the resin to be processed, and the interval is adjusted according to the thickness of the resin sheet to be formed. High-speed rotation of one of the two kneading rolls and the other Rotate at low speed. Then, when the compound of synthetic resin is put into the valley formed by the two kneading rolls, the compound of synthetic resin is melted by heating from each roll, and is crushed or sheared between the two rolls. While being kneaded. Then, the synthetic resin is wound into a sheet around the high-speed rotating roll. When the synthetic resin sheet is uniform, cut a part of the sheet from the roll and measure the thickness with a dial gauge. When the sheet has the desired thickness, cut the sheet along the length of the roll, pinch it and take it out.

In the sheet manufactured by the kneading apparatus, the fishery mixed therein is measured by an inspection apparatus using a video camera.

In the process of inspecting the conventional resin fishery described above, the operation of re-injecting the synthetic resin compound falling from the minute interval of the kneading roll, the operation of kneading the sheet wound around the roll, the operation of measuring the thickness of the sheet, The work of cutting the sheet wrapped around the kneading roll, spreading the sheet on the sample table of the inspection device, and placing the inspection sheet on the sample table are all manual operations. Each task requires skill. Even if the skills are the same, there is a slight difference between workers, so even if the synthetic resin is from the same production lot, there is a slight difference in the production of the inspection resin sheet. Had different test results. In addition, the kneading roll was rotating at a considerably high temperature, and there was a risk of burns and damage to the fingers of the workers.

The present invention has been made in order to solve these problems, and in performing a fisheye inspection of a synthetic resin, reproducibility can be achieved by any operator without relying on humans and skill. To provide a highly secure automatic inspection system for automatic inspections with a high quality of efficiency, and to automatically and efficiently produce high quality resin sheets for inspection. It is intended to provide a resin sheet manufacturing apparatus and a resin sheet manufacturing method which are excellent in safety. Disclosure of departure

The apparatus for automatically inspecting fish in a resin according to the present invention comprises at least a pair of kneading rolls forming a valley where a resin charged from above is opposed to each other at a minute interval. The shaft support member of one of the rolls is connected to a drive source for displacing the shaft interval, and a pair of weir plates having a shape substantially along the valley portion and approaching without contacting the kneading roll are provided. A sheet frame that is disposed with a substantial effective length of the kneading rolls apart and connected to a moving drive source in the same direction as the axial direction of the kneading rolls, and that feeds out the sheet frames one by one toward the valley portion. A feeding source, wherein the resin sheet formed by kneading with the pair of kneading rolls is attached to a sheet frame, and the inspection sheet is conveyed to a discharge position of the inspection sheet; Subsequently, an imaging device including a mounting table for the inspection sheet, a light source, and a video camera is provided. The sheet manufacturing apparatus for resin inspection according to the present invention is a shaft support member for at least one of a pair of kneading rolls that form a valley where resin injected from above is opposed to each other at a minute interval. Are connected to a driving source for displacing the axial distance, and a pair of weir plates having a shape substantially along the valley portion and approaching without contacting the kneading roll are substantially effective for the kneading roll. A sheet frame supply source is provided which is connected to a moving drive source at a distance and in the same direction as the axial direction of the kneading roll, and which feeds the sheet frames one by one toward the valley portion. It is characterized by the following.

In the method for manufacturing a resin sheet for inspection according to the present invention, a pair of heated kneading rolls are opposed to each other with a small interval, and one of the rolls is rotated at a high speed and the other roll is rotated at a low speed, and is rotated in the drawing direction from above. The resin is poured into the valleys of the pair of kneading rolls from above, causing the resin to melt and adhere to the high-speed rotating rolls. The melt-adhered resin is brought into contact with the resin, the minute gap between the pair of kneading rolls is varied, and the resin that is melt-adhered is kneaded by changing the effective width in the axial direction of the kneading rolls. A sheet-like resin on a high-speed rotating roll having a predetermined thickness and a predetermined width by adjusting a small interval to a predetermined interval and adjusting a substantial effective width in the axial direction of the kneading roll to a predetermined width. Is brought into contact with the sheet frame to be transferred. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing the entirety of one embodiment of an automatic fishy inspection apparatus in resin to which the present invention is applied, FIG. 2 is a side view schematically showing the lower part 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 cross-sectional view showing the upper part of the apparatus of the embodiment,

5A, 5B, 5C, and 5D are diagrams sequentially illustrating the operation steps of the apparatus of the above embodiment. FIG. 6 is a block diagram of a control circuit of the automatic fishery inspection apparatus.

Figure 7A.7B.7C.7D is a flow chart showing the operation process of the automatic fishery inspection system.

Fig. 8 shows a modification of the configuration in which the sheet frame is pressed against the sheet.

Figure 9 shows a modification of the seat frame,

10A and 10B show another modification of the configuration in which the sheet frame is pressed against the sheet, and FIG. 11 shows a modification of the configuration of the weir plate.

Fig. 12 is a modified example of the configuration in which the resin compound dropped from the minute interval of the kneading roll is returned to the upper part.

FIG. 13 shows a modified example of the kneading roll. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an entire embodiment of a resin manufacturing sheet manufacturing apparatus to which the present invention is applied. As shown in the schematic cross-sectional view of the main part of FIG. 2, an inspection part is added to this resin inspection sheet manufacturing apparatus to constitute an automatic fishery inspection apparatus. The sheet manufacturing apparatus for resin inspection will be described with reference to FIG. The entire device shown in the figure is assembled on gantry 61 and 62 which are substantially symmetrical. Two pairs of kneading rolls 11. 12 are supported between the mounts 61 and 62. The kneading ports 11 and 12 are arranged in parallel, they are close to each other, and a valley is formed. A photoelectric sensor 6 (see FIG. 5B) for the resin bank having the valley portion as a detection range is arranged. The rotating shafts of the kneading rolls 11 and 12 are connected to different drive motors, respectively, and the shaft supporting members of the kneading rolls 11 are fixed at positions on the gantry 61 and 62. Both sides of the support member are screwed into threaded rods that connect to the motors 13a and 13b, and the motors 13a and The kneading rolls 12 are displaced in parallel by the rotation of the first and the third b, so that the kneading rolls 12 approach or separate from the kneading rolls 11. An indicator needle 1 4 a

14b is attached, and the distance between kneading rolls 11 and 12 can be read. The kneading rolls 1 1 and 1 2 each have a built-in high-frequency induction coil and are connected to a power supply to be heated.

The pair of weirs 15a '15b regulates the spread of the resin kneaded by the kneading rolls 11 and 12, and the width between the weirs 15a and 15b is kneaded. Roll 1 1

The effective width of 1 2 will be 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. Screw rod 23a is a pulse motor 16a, screw rod 23b is a pulse motor

They are linked to 16 b respectively. When the pulse motors 16a and 16b rotate, weir plate

The effective width of the kneading rolls 1 1 and 1 2 changes as 15 a and 15 b approach or separate from each other.

In the apparatus shown in FIG. 1, the endless belt 17 shown in FIG. 3 is provided in a portion not drawn on the back side in the figure. The endless belt 17 has substantially the same effective width as the kneading rolls 1 1 and 1 2, and the shaft 2 4-2 5 • 2 6 · 2 supported by the belt frame 28. Has been hanging on seven. The shaft 24 is pivotally supported by the gantry 61 and 62, and the shaft 26 is engaged with an arc guide groove 29 around the shaft 24 on the gantry 61 and 62 side. An air cylinder 18 is vertically rotatably mounted on the chassis plate laid over the frames 61 and 62, 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 non-assembled belt 17 to move forward and backward together with the belt frame 28 to contact or isolate the roll 11. Further, the belt frame 28 is provided with a belt lever 20 in contact with the surface of the endless belt 17. Also, a roll scrubber 19 is mounted 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 1 and 12 so as to be able to advance and retreat to a position where the cleaning roll 22 contacts the kneading rolls 1 1 and 1 2. A cleaning roll scraper 75 is attached to the cleaning roll 22 in contact with the surface thereof.

Sheet frame source 4 2 is attached to mounts 6 1 and 6 2 via mount 4 4. ing. The sheet frame supply source 42 drops the sheet frames 40 one by one toward the valley formed by the kneading rolls 11 and 12. The detailed cross section is shown in FIG. I have. 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 a lower portion of the partition plate 41 is opened to drop the sheet frame 40. A large number of cardboard sheet frames 40 are stored against the partition plate 41, and air cylinders 45 are arranged to hold the sheet frame 40 against the partition plate 41. . 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 plate 48 is screwed into the screw rod 49 and engages with the guide rod. Since the screw rod 49 is connected to the motor 50, it moves up and down by the rotation of the motor 50. . Further, below the partition plate 41, a stopper 115 is connected to the air cylinder 52 so as to be movable forward and backward.

In addition, the apparatus of FIG. 1 includes a surface displacement meter 53 that abuts the surface of roll 11 between weirs 15 a ′ 15 b (ie, inside the effective effective width of roll 11), A surface displacement meter 54 contacting the surface of the roll 11 outside the weir plate 15 a · 15 b (ie, outside the effective effective width of the roll 11) is connected to the air cylinder 55. It is arranged so that it can advance and retreat. In the surface displacement meters 53 and 54, the tracing stylus at the tip is a roller, which expands and contracts following a minute displacement, and outputs the amount of expansion and contraction electrically. The thickness of the sheet 37 attached to the surface of the roll 11 can be known from the difference in the output value of the amount of expansion and contraction.

FIG. 2 shows the periphery of a pair of kneading rolls 11 1 and 12 which are inspection part sheets. The inspection part shown in Fig. 2 is added to the sheet manufacturing device for resin inspection shown in Fig. 1 to construct an automatic fishery inspection device. A guide plate 57 is provided below the kneading rolls 11 * 12 of the sheet manufacturing apparatus. Further, a photoelectric sensor 171 for detecting the falling resin compound is disposed at a position below the kneading rolls 11 and 12 and just below the kneading rolls 11 (an inner side in the drawing). Following the guide plate 57, a belt conveyor 58 is arranged. Further, a photographing device is provided adjacent to the belt conveyor 58. The imaging device consists of a light source 64 at the lower part of the inspection sheet 37, 40 on the mounting table 59 for the inspection sheet, and a video camera 65 at the upper part, and transmission of the sheet 37. You can shoot light. The mounting table 59 for the inspection sheet is placed on the belt conveyor 66, and the inspection sheet 37.40 conveyed from the belt conveyor 58 is placed on the video camera 65 and photographed. It can run in the field of view. Therefore, the video camera 65 can successively photograph the entire surface of the sheet 37 traveling in the photographing visual field range. At the top of the belt conveyor 58 and at the top of the belt conveyor 66, a first sheet sensor 72 and a second sheet sensor 73 for detecting an inspection sheet are disposed, respectively.

Note that the entire surface of the sheet 37 can be photographed even when the mounting table 59 for the inspection sheet is fixed and the light source 64 and the video camera 65 are movable. 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.

Each drive unit of the automatic fisheye inspection apparatus shown in FIGS. 1 and 2 is controlled by a control circuit 80 shown in FIG. That is, the control circuit 80 includes a high-frequency power supply for the rolls 11 and 12, a drive power supply for the motors 13 a and 13 b, a drive power supply for the motors 16 a and 16 b, and a roll power supply for the rolls 11 and 1. 2 Power supply for rotating motor, trigger for air cylinder 18 trigger for air cylinder 55, trigger for air cylinder 55, drive circuit for shutter frame supply 42, power supply for light source 64, power supply for video camera 65, power supply for video camera 65 , The trigger of the air cylinder 21, the driving power of the conveyor 58, and the driving power of the conveyor 66 are connected. Further, to the control circuit 80, a sensor for compound 71, a photoelectric sensor for resin bank 76, a first sensor for sheet 72, and a second sensor for sheet 73 are connected.

The operation steps of the apparatus for automatically inspecting fish in resin of the present invention of the embodiment shown in FIGS. 1 and 2 will be described with reference to FIGS. 5A to 5D and flow charts from FIGS. 7A to 7D. In addition, an embodiment of an inspection sheet manufacturing apparatus and a manufacturing method to which the present invention is applied will be described below.

~-In step 101, the kneading rolls 11.1.2 are energized to a high-frequency induction coil to raise the temperature to a predetermined temperature. In step 102, start the motors 13a and 13b, read the indicating needles 14a and 14b, and adjust the interval between the kneading rolls 11 and 12 to the initial setting. 3 Start the motors 16a and 16b and start the dams 15a and 15b Set the interval width to the default setting. Step 1 0 4 Start kneading roll 1 1 - 1 2 drive motor, one of the rotational speed of the rolls 1 1, keep slightly higher than the rotational speed R ₂ of the other roll 1 2. At this time, the air cylinder 55 is retracted, and the surface displacement meters 53 and 54 are both kept away from the kneading roll 11. In step 105, the air-cylinder 18 is operated, the endless belt 1 進 is advanced and brought into contact with the roll 11 and the friction of the roll 11 rotating the endless belt 17 is increased. It patrols by driving. 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.

The compound of the sample resin to be inspected (for example, a mixture of a vinyl chloride resin powder with a stabilizer and a plasticizer, and a coloring agent if necessary) is prepared in advance, and the step 106 Then, as shown in Fig. 5A, the compound 36 of the raw material resin is charged from the beaker into the valley portion of the kneading rolls 11 and 12. 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 a mouth screwer in contact with the surface of the roll 12. It is dropped by 1 9 and falls on the endless belt 17. In addition, a part of the injected compound 36 directly falls on the endless belt 17 through a minute interval. These compounds 36 that have fallen onto the endless belt 17 are transported upward because the endless belt 17 is circulating, and the high-speed rotating roll 1 that is in contact with the endless belt 17 Pressed against 1, most adhere. The compound 36 that has not adhered here is transported further upward, but is scraped off by the belt scraper 20 that is in contact with the surface of the endless belt 17, and the endless belt 1 is removed. It falls between the contact gap with 7 and adheres to the high-speed rotating roll 11 there. The compound 36 thus input completely adheres to the high-speed rotating roll 11. When the drop of the compound 36 is stopped and the sensor 71 does not detect the compound 36 in step 107, the air-cylinder 18 is operated to suction in step 108, and the shaft 24 is moved. The endless belt 17 rotates as a center together with the mouth screwer 19 and the belt scraper 20 in the direction of the arrow in the chain line, and retreats away from the kneading roll 11 1 and the kneading roll 1 1 · 1 The lower part of 2 is opened.

In step 109, the rotation of the high-speed rotating roll 11 and the low-speed rotating roll 12 Subsequently, as shown in FIG. 5B, the compound becomes a sheet 37 on the high-speed rotating roll 11. In a valley where the high-speed rotating roll 11 and the low-speed rotating roll 12 meet, a resin pool 37a is formed. The pool 37 a is what is called a bank, and is detected by the sensor 76. Here, the resin is turned back. When the pulse motors 16a and 16b are rotated in Steps 1 1 1 and 1 13 and the damping plates 15a and 15b approach or separate from each other, the kneading rolls 1 1 The effective width of 2 changes. By repeating this operation, the amount of the resin bank 37a becomes an appropriate amount, and the kneading of the resin is sufficiently performed, and the produced resin sheet for inspection becomes uniform.

When the distance between the rolls 11 and 12 and the width between the dams 15a and 15b are repeated a predetermined number of times, separated and approached in Step 1 14, the resin turning is completed, and Step 1 1 The desired distance between the kneading rolls 11 and 12 by the motors 13a and 13b at 5 is the desired distance, that is, the thickness of the resin sheet for inspection to be manufactured. The width between the weir plates 15a and 15b is adjusted to the expected width, that is, the width of the resin sheet for inspection to be manufactured by a and 16b. In this state, the rotation of the kneading rolls 11 and 12 is further continued for a while, and then the thickness of the sheet 37 formed on the kneading rolls 12 is measured. In step 117, the air cylinder 55 shown in FIG. 1 is operated to advance the surface displacement meter 53 and the surface displacement meter 54. 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 the desired thickness (step 1 18), the rotation of the rolls 1 1 and 12 is stopped in step 1 19. Next, in step 120, the motors 13a and 13b are rotated to move the kneading rolls 12 in parallel, so that the distance between the kneading rolls 11 and 12 is increased and the thickness of the sheet frame 40 is reduced. Leave them almost the same, and in Steps 1 2 1 use a pulse motor — 16 a and 16 b to widen the width between the dams 15 a and 15 b sufficiently to allow the shutter frame 40 to pass So that Here, the kneading roll 11 is rotated by inching (step 1 2 2), and the bank 37 a in the valley between the kneading rolls 11 and 12 is moved downward. Move to. Sheet frame 40 is supplied in the state of FIG. 5C.

As shown in FIG. 4, a large number of the sheet frames 40 are housed in the housing 43, and are pressed and held against the partition plate 41 by the air cylinder 45. 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 45 is moved backward by pushing the second and subsequent sheet frames 40 with the stopper 51, the air cylinder 45 is moved backward, and the second and subsequent sheet frames 40 become the housing. 4 Enter the back of 3. When the stir bar 51 is retracted by the air cylinder 52, 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 moved by the lower suction plate 48. Will be retained. Here, when the motor 50 is rotated overnight, 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 the state shown in FIG. 5C is obtained. That is, this timing is step 123 of the flowchart. Due to the impact of the sheet frame 40 falling, the sheet 37 is cut off by the iron at the corner of the sheet frame 40 and the kneading roll 11. Here, when the kneading rolls 11 and ₁₂ are rotated at substantially the same rotation speed R, = R2 (step 124), the kneading rolls 11 and 1 are rotated as shown in Fig. 5D. Since the sheet 37 is pressed against the sheet frame 40 from 2, the sheet 37 sticks to the sheet frame 40 continuously from the cut end. The sheet 37 affixed to the sheet frame 40 is produced at the lower portion as the kneading rolls 11 and 12 have substantially the same rotational speed, and rotates along with the guide plate 57. Falling down.

When the inspection sheet 37, 40 manufactured and dropped in this way is detected by the sheet first sensor 72 in step 125, the belt conveyor 58 is driven in step 126. As shown in FIG. 2, the sheet is conveyed from the guide plate 57 to the belt conveyor 58, and is transferred onto the inspection sheet mounting table 59. When the tip of the inspection sheet 37, 40 is detected by the second sheet sensor 73 in step 127, the belt copier 66 is driven (step 128). In Steps 1 and 9, the light source 64 is turned on.In Step 130, the inspection sheet 37 and 40 on the mounting table 59 is driven by the belt conveyor 66 while operating the video camera 65. Go on. Then, the video camera 6 5 captures the fish in the sheet 37 by the light passing through the sheet 37. Shadow. The number of fishes that appear one after another can be counted by an arithmetic circuit and recorded and output by a printer, or output by a monitor. If the rear end of the inspection sheet 37, 40 is detected by the sheet second sensor 73 in step 131, the measurement is terminated.

On the other hand, in step 1 25, when the sheet 1 7 2 for the sheet detects the drop of the inspection sheet 37, 40, the air cylinder 21 is operated in step 1 32, and the cleaning roll 2 Advance roll 2 and clean the surface of rolls 1 1 and 12. At the same time, clean the surface of the endless belt 17 with the belt scrubber 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 the fishery caused by foreign substances and ungelled particles contained in the sample resin. Various modifications

The present invention is not limited to the above embodiment, but can be applied to other embodiments. Hereinafter, modified examples of various embodiments will be described with reference to the drawings. Of course, the present invention is not limited to these modified examples, and can be implemented with further modifications within the scope of the concept of the present invention.

FIG. 8 shows an example of a configuration in which the sheet frame 40 is pressed against the sheet 37 on the roll 11 by a pressing means against one of the kneading rolls 11 and 12. The pressing means includes, for example, an air cylinder 77 and a pinch roller 78. The sheet 37 is pressed by the pinch rollers 78 and adheres to the sheet frame 40, and is discharged to the lower part.

Reference numeral 9 denotes a modified example of the sheet frame 40, in which the intermediate portion is a light transmitting space and the sheet cutting edge 83 is provided near the tip of one side of the outer peripheral portion 82. The sheet frame 40 may have an inclined surface or a curved surface at the edge 82 a between the light transmission space at the center and the outer peripheral portion 82 irrespective of the presence or absence of the sheet cutting edge 83. Further, the surface of the outer peripheral portion 82 to which the sheet 37 is attached may be coated with an adhesive.

FIGS. 10A and 10B are examples in which the kneading rolls 11 and 12 are pressed by the urging means, respectively. For example, push panels 85 and 86 can be used as biasing means. You. For example, when a sheet frame 40 provided with a sheet cutting edge 83 shown in FIG. 9 is supplied between the kneading rolls 11 and 12 pressed by the pressing springs 85 and 86, the roll 11 The sheet 37 is cut at the sheet cutting edge 83, adheres to the sheet frame 40, and is discharged to the lower part. It should be noted that the present invention can be applied to a sheet frame 40 having no sheet cutting edge 83. In this case, the sheet 37 on the roll 11 is cut at the lower corner of the sheet frame 40.

FIG. 11 shows an example in which the inner surfaces of the weir plates 15 a and 15 b are curved inwardly inclining toward the rotation direction of the kneading roll 11. With this configuration, the kneading of the sheet 37 becomes more complete. The inner surfaces of the weir plates 15a and 15b may be flat and have a narrow slope.

FIG. 12 shows an embodiment of the apparatus in which the resin compound 36 that has fallen from the minute gap between the kneading rolls 11 and 12 is returned to the valley between the kneading rolls 11 and 12 again. An endless belt 84 is wound around pulleys 85a and 85b-85c-85d from the lower part to the upper part of the kneading roll 11, and an endless belt 86 is surrounded by a pulley 87a around the outside thereof. It is wound around 87b * 87c'87d and rotates in the direction of the arrow. The lower surface of the upper end of the endless belt 84 is in contact with the lower surface of the endless belt 86, and the scrubber 89 is in contact with the lower surface of the upper end of the endless belt 86. The resin compound 36 introduced into the valley between the kneading rolls 11 and 12 adheres to the kneading rolls 11, but a part of the resin compound falls from the minute gap and falls on the endless belt 86. The resin compound 36 is conveyed to the upper part by being sandwiched between the endless belt 84 and the endless belt 86, dropped off by the scrubbers 89 and 88, and again has a valley between the kneading rolls 11 and 12. Fall to

FIG. 13 shows a modified example of the cleaning roll 22 (see FIG. 1) for cleaning the kneading rolls 1 1 and 1 2. The sliding contact surface of the cleaning roll 22 connected to the air cylinder 21 is shown in FIG. Cleaning cloth 90 is covered. The cleaning cloth 90 is in the form of a long strip, is unwound from a rolled supply source, is wound around the cleaning roll 22 and wound up in a roll, and is always new to the kneading rolls 1 1 and 1 2. A clean cloth surface comes into sliding contact. In addition, the cleaning cloth 90 may be folded on the folding screen on the supply source side. Industrial applicability

As described in detail above, according to the apparatus for automatically inspecting fish in a resin according to the present invention, no fisherman is required to be skilled by any worker, and the fishery of the synthetic resin is automatically inspected. Inspection work can be performed.

Claims

The scope of the claims

1. A pair of kneading rolls, which form a valley where resin injected from above opposing at a small interval, form a valley where at least one of the rolls is connected to a drive source that displaces the shaft interval. A pair of weir plates that are substantially along the valley portion and approach without contacting the kneading rolls are separated by a substantial effective length of the kneading rolls, and are aligned with the axial direction of the kneading rolls. A resin frame formed by being connected to a movement drive source in the same direction and having a sheet frame supply source for feeding the sheet frames one by one toward the valley portion, and kneaded by the pair of kneading rolls; At the discharge position of the inspection sheet formed by bonding the inspection sheet to the sheet frame, and including the inspection sheet mounting table, the light source, and the video camera following the transportation means. Photographing equipment is installed Fi Sshuai automatic inspection apparatus in the resin, characterized.

2. A photographing unit including a light source and a video camera of the photographing apparatus, or a mounting table for an inspection sheet is connected to a traveling drive source, and the photographing unit and the mounting table relatively move. 2. The apparatus for automatically inspecting fish in resin according to claim 1, wherein:

3. A pair of kneading rolls forming a valley where resin injected from above opposing at a small interval forms a valley where the resin injected from above is attached. At least one of the rolls is connected to a drive source that displaces the shaft interval. A pair of weir plates that are substantially in line with the valley portion and approach without contacting the kneading roll are separated by a substantial effective length of the kneading roll, and are aligned with the axial direction of the kneading roll. There is a sheet frame supply source that is connected to the moving drive source in the same direction and that pushes the sheet frame one by one between the pressing means for one roll and the pressing means for the one roll. Then, the resin sheet formed by kneading with the pair of kneading rolls is attached to a sheet frame, and the inspection sheet is transported to a discharge position of the inspection sheet. Table for the inspection sheet Fi Sshuai automatic inspection apparatus in the resin, wherein the imaging apparatus includes a light source and video camera are disposed.

4. The apparatus for automatically inspecting fish in resin according to claim 3, wherein the pressing means is a pinch roller.

5. At least one of the pair of kneading rolls that form a valley where the resin injected from above opposes at a small interval forms a valley where the resin charged from above is connected to a drive source that displaces the shaft interval. A pair of weir plates that are substantially along the valley portion and approach without contacting the kneading rolls are separated by a substantial effective length of the kneading rolls, and are aligned with the axial direction of the kneading rolls. A sheet frame supply source for feeding a sheet frame 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, and being provided; apparatus.

6. An endless belt having a width substantially the same as the substantial effective width of the kneading roll, and the endless belt that contacts one of the rolls from below the minute interval and contacts the roll. 6. The sheet manufacturing apparatus for resin inspection according to claim 5, wherein the apparatus is connected to and attached to a displacement drive source for displacing the position to a position separated from the position.

7. 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 is attached. 6. The sheet manufacturing apparatus for resin inspection according to 5.

8. A sheet frame to which a sheet for resin inspection is stuck, where the central part is a light transmission space, the outer peripheral part is a plate material, and a sheet cutting protrusion is provided near the tip of one side of the outer peripheral part. Characteristic seat frame.

9. The sheet frame according to claim 8, wherein an adhesive is applied to one surface of the plate material.

10. Pressing means for suppressing a large number of sheet frames leaning against the partition plate in the housing, holding means for holding one of the multiple sheet frames on the partition plate side, and raising and lowering the holding means A sheet frame feeding device for feeding sheet sheets one by one, characterized by having a dynamic driving means.

1 1. At least one of the pair of kneading rolls forming a valley where resin injected from above opposing at a small interval forms a valley where the resin injected from above is connected to the drive source that displaces the shaft interval. A pair of weir plates that are substantially along the valley portion and approach without contacting the kneading rolls are separated by a substantial effective length of the kneading rolls, and in the axial direction of the kneading rolls. And a sensor for detecting a bank of resin accumulated in the valley portion is provided. Resin kneading equipment.

12. The resin kneading apparatus according to claim 11, wherein a pair of inner surfaces of the weir plate are inclined so as to become narrower in a rotation direction of the kneading roll.

13. The resin kneading apparatus according to claim 11, wherein a pair of inner surfaces of the weir plate are curved inwardly inclined toward a rotation direction of the kneading roll.

14. The resin kneading apparatus according to claim 11, further comprising a device for returning a fallen object from below the minute interval between the pair of kneading rolls to the upper part of the rolls.

15. The device for returning the falling object is an endless belt having substantially the same width as the substantial effective width of the kneading roll, and the endless bell which circulates in contact with one of the rolls from below the minute interval. 15. The resin-mixing device according to claim 14, wherein the cartridge is connected to and attached to a displacement drive source that displaces the roll between a position where the roll contacts the roll and a position where the roll is separated from the roll.

16. The resin kneading apparatus according to claim 11, wherein a cleaning roll connected to an advancing / retracting drive source is mounted so as to be able to advance and retreat to a position where it contacts a lower portion of the pair of kneading rolls.

17. A pair of heated kneading rolls face each other at a small interval, and one of the rolls rotates at high speed and the other roll rotates at low speed in the pulling direction from above. The resin is poured into the portion from above, and the resin is melted and adhered to the high-speed rotating roll. The resin falling from below the minute interval is received by a belt, conveyed, brought into contact with the high-speed rotating roll, and melted and adhered. After changing the minute interval between the kneading rolls and changing the effective effective width in the axial direction of the kneading rolls to knead the resin that has been melt-adhered, the minute interval between the pair of kneading rolls is adjusted to a predetermined interval. In addition, the effective width in the axial direction of the kneading roll is adjusted to a predetermined width, and the sheet-shaped resin on the high-speed rotating roll having the predetermined thickness and the predetermined width is brought into contact with the sheet frame. To transfer Resin sheet manufacturing method for testing according to claim.