System and method for inspecting peripheral shape of honeycomb formed body

Abstract

To provide a system capable of accurately inspecting an entire outer periphery shape of a cut honeycomb compact in-line.SOLUTION: A system for inspecting an outer peripheral shape of a honeycomb compact 100 between cutting and drying in a manufacturing line where extrusion molding, cutting, and drying of the honeycomb compact are performed continuously, comprises: an arrangement mechanism 30 that arranges a plurality of honeycomb compacts on a drying receiving table 31 in a direction Y perpendicular to a conveyance direction X with one of the cut surfaces of the honeycomb compact 100 facing down and with predetermined positions of outer peripheral parts during extrusion molding aligned in the same direction; a light-cutting type laser displacement meter 40 that measures partial outer peripheral shape data of the honeycomb compacts 100a, 100b at both end parts of the plurality of honeycomb compacts 100 arranged on the drying receiving table 31 in the direction Y perpendicular to the conveyance direction X; and a data processing unit 50 that combines the partial outer peripheral shape data D1, D2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a system and method for inspecting the outer peripheral shape of a honeycomb formed body. [Background technology]

[0002] Honeycomb structures are used in a variety of applications. For example, honeycomb-shaped ceramic structures having partition walls that define a plurality of cells extending from a first end face to a second end face are widely used in catalyst carriers, various filters such as diesel particulate filters (DPFs) and gasoline particulate filters (GPFs), heater elements, etc.

[0003] Honeycomb structures are manufactured by extruding a molding material (clay) to obtain a honeycomb formed body, cutting the honeycomb formed body to a predetermined length, drying, and firing. In an actual manufacturing line, the extrusion, cutting, and drying of the honeycomb formed body are performed continuously, so it is necessary to inspect the outer peripheral shape of the honeycomb formed body in-line. Therefore, Patent Document 1 proposes a system and method in which the axial direction of the cut honeycomb molded body remains horizontal, and the outer peripheral shape of the side surface of the upper half of the honeycomb molded body is measured from above using a laser displacement meter. Patent document 2 also proposes a system and method for measuring the overall outer shape of a honeycomb formed body using an inspection unit including a line illuminator configured to generate line illumination perpendicular to the axial direction of the honeycomb formed body on the outer surface of the honeycomb formed body (honeycomb extrudate) immediately after extrusion molding, and a detector configured to detect the line illumination scattered from the outer surface of the honeycomb formed body and generate a signal based on the detected line illumination. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6790313 [Patent Document 2] Special Publication No. 2017-536549 Summary of the Invention [Problem to be solved by the invention]

[0005] The system and method of Patent Document 1 measure the axial direction of the cut honeycomb formed body while keeping it horizontal, and therefore cannot measure the outer peripheral shape of the side surface of the lower half of the honeycomb formed body. The system and method of Patent Document 2 measure the shape of a honeycomb formed body immediately after extrusion molding, but this can be difficult to implement because there may not be enough space to install a specified inspection unit in the area immediately after extrusion molding. Also, it is possible that the honeycomb formed body may deform when it is cut, and this method does not allow inspection of the entire outer periphery of the cut honeycomb formed body. Furthermore, while it is possible to apply the system and method of Patent Document 2 after cutting the honeycomb formed body, it is practically difficult to apply the system and method of Patent Document 2 because multiple honeycomb formed bodies are arranged side by side on a drying table immediately after cutting.

[0006] The present invention has been made to solve the above-mentioned problems, and aims to provide a system and method that can inspect the shape of the entire outer periphery of a cut honeycomb molded body in-line with high accuracy. [Means for solving the problem]

[0007] The present inventors have conducted extensive research into a system and method for in-line inspection of the peripheral shape of a honeycomb formed body between cutting and drying of the honeycomb formed body, and as a result have found that the above-mentioned problems can be solved by arranging a plurality of cut honeycomb formed bodies side by side on a drying support table, and measuring and synthesizing partial peripheral shape data of the honeycomb formed bodies at both ends on the drying support table, thereby completing the present invention. That is, the present invention is exemplified as follows.

[0008] (1) A system for inspecting the outer peripheral shape of a honeycomb formed body between the cutting and the drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are continuously performed, an arrangement mechanism for arranging a plurality of the honeycomb formed bodies on a drying table in a direction perpendicular to the conveying direction so that one of the cut surfaces of the honeycomb formed bodies faces downward and predetermined positions of the outer peripheries during extrusion molding are aligned in the same direction; a laser displacement meter of a light-cutting type for measuring partial peripheral shape data of the honeycomb formed bodies at both ends among the plurality of honeycomb formed bodies arranged in a line in a direction perpendicular to the conveying direction on the drying table; a data processing unit that synthesizes the partial outer peripheral shape data; A system comprising:

[0009] (2) The system according to (1), wherein the partial peripheral shape data has peripheral shape data areas that overlap in a cross section of the honeycomb molded body.

[0010] (3) The system according to (2), wherein the overlapping peripheral shape data area is 20° or more.

[0011] (4) The system according to any one of (1) to (3), wherein two of the laser displacement meters are provided for each end of the honeycomb molded body.

[0012] (5) The system according to (4), wherein the laser displacement meter is installed at an angle of 45±10° with respect to a direction perpendicular to the conveying direction.

[0013] (6) A method for inspecting the outer peripheral shape of a honeycomb formed body between the cutting and the drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are continuously performed, comprising: a step of arranging a plurality of the honeycomb formed bodies in a direction perpendicular to the conveying direction on a drying table with one of the cut surfaces of the honeycomb formed bodies facing downward and with predetermined positions of the outer peripheries at the time of extrusion molding aligned in the same direction; a step of measuring partial peripheral shape data of the honeycomb formed bodies at both ends of the plurality of honeycomb formed bodies arranged side by side in a direction perpendicular to the conveying direction on the drying table using a light-cutting type laser displacement meter; a step of synthesizing the partial outer peripheral shape data; A method for providing the above.

[0014] (7) The method according to (6), wherein the partial outer peripheral shape data has outer peripheral shape data regions that overlap in a cross section of the honeycomb molded body.

[0015] (8) The method according to (7), wherein the overlapping peripheral shape data area is 20° or more.

[0016] (9) The method according to any one of (6) to (8), wherein two of the laser displacement meters are provided for the honeycomb molded body at each end.

[0017] (10) The method according to (9), wherein the laser displacement meter is installed at an angle of 45±10° with respect to a direction perpendicular to the conveying direction. [Effects of the Invention]

[0018] According to the present invention, it is possible to provide a system and method that are capable of inspecting the shape of the entire outer periphery of a cut honeycomb molded body in-line with high accuracy. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic configuration diagram of a production line including a system for inspecting the outer peripheral shape of a honeycomb formed body according to an embodiment of the present invention. [Figure 2] FIG. 10 is a side view illustrating the positional relationship between the honeycomb formed body and the drying table. [Figure 3] 10 is a diagram for explaining partial peripheral shape data of a honeycomb molded body measured by a light-cutting type laser displacement meter and synthesized peripheral shape data. FIG. [Figure 4]FIG. 2 is a diagram for explaining the installation angle of a laser displacement meter. [Figure 5A] FIG. 2 is a cross-sectional view of the honeycomb formed body taken along a line perpendicular to the cell extension direction. [Figure 5B] FIG. 10 is a cross-sectional view of another honeycomb formed body taken perpendicular to the cell extension direction. [Figure 6] FIG. 1 is a flow diagram of an inspection method according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following is a detailed description of the embodiments of the present invention. The present invention is not limited to the following embodiments, and it should be understood that modifications and improvements made to the following embodiments based on the ordinary knowledge of those skilled in the art without departing from the spirit of the present invention are also within the scope of the present invention.

[0021] (1. System for inspecting the outer shape of honeycomb formed bodies) A system for inspecting the peripheral shape of a honeycomb formed body according to an embodiment of the present invention (hereinafter referred to as the "inspection system") is used to inspect the peripheral shape of a honeycomb formed body between cutting and drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are carried out continuously. Because this inspection system inspects the peripheral shape of the honeycomb formed body between cutting and drying, it is possible to detect not only deformation of the honeycomb formed body that occurs during extrusion molding, but also deformation of the honeycomb formed body that occurs when cutting the honeycomb formed body.

[0022] FIG. 1 is a schematic configuration diagram (top view) of a manufacturing line including an inspection system according to an embodiment of the present invention. 1, the production line includes an extruder 10, a cutting device 20, and a drying device (not shown). The inspection system is provided between the cutting device 20 and the drying device. The inspection system includes a positioning mechanism 30, an optical cutting type laser displacement meter 40, and a data processing unit 50.

[0023] In the production line, a honeycomb molded body 100 extruded from an extrusion molding machine 10 is delivered to a receiving table 12 provided on a conveying path 11. The conveying path 11 is not particularly limited, but may be a conveyor having a belt and rollers.

[0024] The receiving table 12 onto which the honeycomb formed body 100 has been transferred is transported on the transport path 11 in the transport direction X. The honeycomb formed body 100 is cut to a predetermined length by a cutting device 20 midway along the transport path 11. The cutting device 20 is not particularly limited, but a cutting jig having a wire rod hung between a pair of bobbins can be used. For example, the honeycomb formed body 100 can be cut to a predetermined length by lowering a cutting jig provided above the transport path 11.

[0025] The cut honeycomb formed body 100 is placed on a drying table 31 by a placement mechanism 30 so as to be dried in a drying device. The placement mechanism 30 places the honeycomb formed bodies 100 on the drying tray 31 with one of the cut surfaces of the honeycomb formed bodies 100 facing downward and with the predetermined positions of the outer periphery during extrusion molding aligned in the same direction in a direction Y perpendicular to the conveying direction X. There are no particular limitations on the arrangement mechanism 30 as long as it has the above-mentioned functions. A typical arrangement mechanism 30 can have a conveying path 32 and a mechanism capable of arranging and rotating the drying tray 31. In the arrangement mechanism 30 having the above-described structure, the honeycomb formed bodies 100 held on the receiving tray 12 are transferred to the conveying path 32, and then repeatedly conveyed along the conveying path 32 in the direction Y, thereby arranging a plurality of the honeycomb formed bodies 100 held on the receiving tray 12 in the direction Y. The conveying path 32 is not particularly limited, but may be, for example, a conveyor having a belt and rollers. Next, as shown in FIG. 2 , with one of the cut surfaces of the honeycomb formed bodies 100 in contact with the surface of the drying tray 31, the drying tray 31 is rotated 90° so that one of the cut surfaces of the honeycomb formed bodies 100 is facing downward, thereby arranging a plurality of the honeycomb formed bodies 100 in a line on the surface of the drying tray 31. Note that FIG. 2 is a side view for explaining the positional relationship between the honeycomb formed bodies 100 and the drying tray 31. Furthermore, by using an arrangement mechanism 30 having such a structure, a predetermined position of the outer periphery of the honeycomb formed body 100 during extrusion molding (for example, position A in the upper vertical direction during extrusion molding) can be aligned on the forward side of the conveying direction X when multiple honeycomb formed bodies 100 are arranged side by side on the drying receiving table 31.

[0026] A plurality of honeycomb molded bodies 100 arranged side by side in a direction Y perpendicular to the conveying direction X on a drying table 31 are transported in the conveying direction X by a conveying path 41, and before being transported to a drying device, their peripheral shape data is measured by a light-cutting type laser displacement meter 40. The light-section type laser displacement meter 40 is not particularly limited, and a commercially available device can be used. Here, the light-section type laser displacement meter 40 refers to a laser displacement meter 40 that uses a light-section method. The light-section type laser displacement meter 40 irradiates a band-shaped laser light onto the surface of the object to be measured, causing it to be diffusely reflected, and receives and forms an image of the reflected light with an imaging element, thereby obtaining the cross-sectional shape of the object to be measured as profile data. The conveying path 41 is not particularly limited, but may be, for example, a conveyor having a belt and rollers.

[0027] The light-cutting type laser displacement meter 40 measures partial peripheral shape data of the honeycomb molded bodies 100a, 100b at both ends of a plurality of honeycomb molded bodies 100 arranged side by side in a direction Y perpendicular to the conveying direction X. The light-cutting type laser displacement meter 40 irradiates the side surfaces of the honeycomb molded bodies 100a, 100b with a band-shaped laser light, detects the light reflected by the side surfaces of the honeycomb molded bodies 100a, 100b with an imaging element, and calculates peripheral shape data of the honeycomb molded bodies 100a, 100b based on the principle of triangulation. The positions and number of the honeycomb formed bodies 100a, 100b at which the peripheral shape data is measured are not particularly limited, but it is preferable to measure at a plurality of positions in the height direction (axial direction) of the honeycomb formed bodies 100a, 100b (for example, the center, upper and lower parts in the height direction). By measuring at a plurality of positions in this way, the peripheral shapes in the height direction of the honeycomb formed bodies 100a, 100b can be inspected.

[0028] An example of partial peripheral shape data of the honeycomb molded bodies 100a, 100b measured by the light-cutting type laser displacement meter 40 is shown in Fig. 3. The upper left side of Fig. 3 shows partial peripheral shape data D1 of the honeycomb molded body 100a, and the upper right side of Fig. 3 shows partial peripheral shape data D2 of the honeycomb molded body 100b. It is not possible to obtain peripheral shape data for the entire periphery of the honeycomb molded body 100 from each of the partial peripheral shape data D1, D2 of the honeycomb molded bodies 100a, 100b. Therefore, the partial peripheral shape data D1, D2 are synthesized by the data processing unit 50. Specifically, as shown in the lower part of Fig. 3, the partial peripheral shape data D1 of the honeycomb formed body 100a and the partial peripheral shape data D2 of the honeycomb formed body 100b are synthesized to obtain peripheral shape data of the entire periphery of the honeycomb formed body 100. The plurality of honeycomb formed bodies 100 arranged on the drying tray 31 are arranged so that predetermined positions of their peripheral portions at the time of extrusion molding are aligned in the same direction, and therefore, by synthesizing the partial peripheral shape data D1 of the honeycomb formed body 100a and the partial peripheral shape data D2 of the honeycomb formed body 100b, it can be regarded as peripheral shape data of the entire periphery of the honeycomb formed body 100. Therefore, it becomes possible to inspect the shape of the entire periphery of the honeycomb formed body 100 in-line with high accuracy.

[0029] The data processing unit 50 is not particularly limited as long as it is capable of synthesizing the partial peripheral shape data D1, D2 of the honeycomb molded bodies 100a, 100b measured by the light-cutting type laser displacement meter 40. The data processing unit 50 can include a CPU that executes various arithmetic processes required for synthesizing the partial peripheral shape data D1, D2, a ROM that stores the programs and data required for the processes, a RAM that temporarily stores the results of the CPU calculations, and an input / output port for inputting and outputting signals to and from the outside.

[0030] The partial peripheral shape data D1, D2 of the honeycomb molded bodies 100a, 100b measured by the light-cutting type laser displacement meter 40 preferably have an overlapping peripheral shape data region D3 in the cross section of the honeycomb molded bodies 100a, 100b, as shown in Fig. 3. That is, when the partial peripheral shape data D1 of the honeycomb molded body 100a and the partial peripheral shape data D2 of the honeycomb molded body 100b are synthesized, they preferably overlap in the peripheral shape data region D3. By having the partial peripheral shape data D1, D2 have an overlapping peripheral shape data region D3, peripheral shape data for the entire periphery of the honeycomb molded body 100 can be stably obtained, and synthesis of the partial peripheral shape data D1, D2 becomes easier.

[0031] Range θ of overlapping outer peripheral shape data area D3 A Although there are no particular limitations on θ, it is preferable that θ is 20° or more. A If θ is 20° or more, the above effect can be easily and stably ensured. A The upper limit of is not particularly limited, but is typically 50° when the installation position of the laser displacement meter 40 is taken into consideration.

[0032] The number of laser displacement meters 40 to be installed is not particularly limited and may be set appropriately depending on the type and performance of the laser displacement meters 40 to be used. In a preferred embodiment, two laser displacement meters 40 are preferably provided for each end of the honeycomb molded bodies 100a, 100b. With this configuration, it becomes easier to obtain an overlapping outer peripheral shape data region D3 in the cross section of the honeycomb molded bodies 100a, 100b.

[0033] When two laser displacement meters 40 are provided for the honeycomb molded bodies 100a and 100b at each end, the laser displacement meters 40 are, as shown in FIG. 4, angled at an angle θ of 45±10° with respect to the direction Y perpendicular to the conveying direction X. B It is preferable to set the angle θ B By providing the laser displacement meter 40, it becomes easier to obtain an overlapping outer peripheral shape data region D3 in the cross section of the honeycomb molded bodies 100a, 100b. The observation field of the laser displacement meter 40 for the honeycomb molded bodies 100a and 100b is approximately 120° at most, although this depends on the type of the laser displacement meter 40.

[0034] The plurality of honeycomb formed bodies 100 on the drying table 31, whose outer peripheral shapes have been inspected as described above, are transported in the transport direction X and introduced into a drying device. The drying device is not particularly limited, and examples that can be used include a microwave dryer, a hot air dryer, a dielectric dryer, a reduced pressure dryer, a vacuum dryer, and a freeze dryer.

[0035] The honeycomb formed body 100 applicable to the inspection system according to the embodiment of the present invention is not particularly limited. For example, the honeycomb formed body 100 may have an outer peripheral wall and a plurality of partition walls disposed inside the outer peripheral wall to define a plurality of cells extending from a first end face to a second end face. The honeycomb formed body 100 may have a hollow honeycomb shape having an inner peripheral wall, an outer peripheral wall, and partition walls disposed between the inner peripheral wall and the outer peripheral wall to define a plurality of cells extending from the first end face to a second end face.

[0036] Here, cross-sectional views of the honeycomb formed body 100 having the above structure, which are perpendicular to the cell extension direction, are shown in Figs. 5A and 5B, respectively. As shown in Fig. 5A, the honeycomb formed body 100 has an outer peripheral wall 110 and a plurality of partition walls 130 that are disposed inside the outer peripheral wall 110 and define a plurality of cells 120 extending from a first end face to a second end face. Also, as shown in Fig. 5B, the honeycomb formed body 100 has an inner peripheral wall 140, the outer peripheral wall 110, and partition walls 130 that are disposed between the inner peripheral wall 140 and the outer peripheral wall 110 and define a plurality of cells 120 extending from the first end face to the second end face.

[0037] The shape (external shape) of the honeycomb formed body 100 is not particularly limited, and can be, for example, a circular cylinder, an elliptical cylinder, a square prism, or other polygonal prism. That is, the external shape of the honeycomb formed body 100 in a cross section perpendicular to the extension direction of the cells 120 can be a circle, an ellipse, a square, or other polygon. The hollow portion of the honeycomb formed body 100 in Fig. 5B may be the same as or different from the external shape of the honeycomb formed body 100, and can be any of the above-mentioned various shapes. The shape of the cells 120 in a cross section perpendicular to the direction in which the cells 120 extend is not limited to the shape shown in the figure, and may be a circle, an ellipse, a polygon such as a triangle, or the like.

[0038] The honeycomb formed body 100 is preferably made of a ceramic forming material. The ceramic molding material includes ceramic raw materials and water. The ceramic raw material is not particularly limited, and cordierite-forming raw material, cordierite, silicon carbide, silicon-silicon carbide composite material, mullite, aluminum titanate, etc. can be used. These can be used alone or in combination of two or more. The cordierite-forming raw material is a ceramic raw material blended to have a chemical composition in the range of 42 to 56 mass% silica, 30 to 45 mass% alumina, and 12 to 16 mass% magnesia. The cordierite-forming raw material is fired to become cordierite.

[0039] In addition to ceramic raw materials and water, the ceramic forming material may contain a dispersion medium other than water, a binder (e.g., organic binder, inorganic binder, etc.), a pore-forming material, a surfactant, etc. The composition ratio of each raw material is not particularly limited, and it is preferable to set the composition ratio according to the structure, material, etc. of the honeycomb formed body 100 to be produced.

[0040] (2. Method for inspecting the peripheral shape of a honeycomb formed body) A method for inspecting the peripheral shape of a honeycomb formed body according to an embodiment of the present invention (hereinafter referred to as the "inspection method") is a method for inspecting the peripheral shape of a honeycomb formed body between cutting and drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are performed continuously. Because the peripheral shape of the honeycomb formed body is inspected between cutting and drying, this inspection method can detect not only deformation of the honeycomb formed body that occurs during extrusion molding, but also deformation of the honeycomb formed body that occurs when cutting the honeycomb formed body. The inspection method according to the embodiment of the present invention can be performed using the above-described inspection system, and therefore, the same content as that of the above-described inspection system will not be described.

[0041] An inspection method according to an embodiment of the present invention includes the steps of arranging a plurality of honeycomb formed bodies 100 in a direction perpendicular to the conveying direction, with one of the cut surfaces of the honeycomb formed bodies 100 facing downward and with the predetermined positions of the outer peripheries aligned in the same direction during extrusion molding; measuring partial outer periphery shape data D1, D2 of the honeycomb formed bodies 100a, 100b at both ends of the plurality of honeycomb formed bodies 100 arranged in a direction Y perpendicular to the conveying direction X on a drying receiving table 31 using an optical cutting type laser displacement meter 40; and synthesizing the partial outer periphery shape data D1, D2. By adopting the above-described configuration, the partial peripheral shape data D1 of the honeycomb formed body 100a and the partial peripheral shape data D2 of the honeycomb formed body 100b can be combined to form peripheral shape data for the entire periphery of the honeycomb formed body 100, thereby enabling the shape of the entire periphery of the honeycomb formed body 100 to be inspected in-line with high accuracy.

[0042] A flow diagram of the inspection method according to the embodiment of the present invention is shown in Fig. 6. This flow diagram starts from a state in which the honeycomb formed bodies 100 are arranged side by side on the drying table 31 in a direction Y perpendicular to the conveying direction X. The honeycomb formed body 100 placed on the drying receiving table 31 starts to be conveyed in the conveying direction X (S1), and is stopped when it arrives at a predetermined position where the outer peripheral shape is inspected (S2). Next, partial outer peripheral shape data D1, D2 of the honeycomb formed bodies 100a, 100b at both ends on the drying receiving table 31 are measured by an optical section type laser displacement meter 40 (S3). Next, the measured partial outer peripheral shape data D1, D2 are synthesized by a data processing unit 50 connected to the optical section type laser displacement meter 40 (S4). Then, based on the synthesized result, the outer peripheral shape of the honeycomb formed body 100 is analyzed (S5), and the analysis result is output (S6), thereby completing the inspection. Then, the inspected honeycomb formed body 100 is conveyed in the conveying direction X, and the honeycomb formed body 100 placed on the next drying receiving table 31 is conveyed to a predetermined position where the outer peripheral shape is inspected. In this way, the shape of the entire outer periphery of the honeycomb formed body 100 placed on the drying table 31 can be inspected continuously in-line.

[0043] The inspection results can be fed back in real time to the conditions for extrusion molding and cutting. Specifically, if a defect occurs in the outer peripheral shape of the honeycomb molded body 100, the defect in the outer peripheral shape of the honeycomb molded body 100 can be suppressed by appropriately adjusting the conditions for extrusion molding and cutting. [Explanation of symbols]

[0044] 10. Extrusion molding machine 11 Conveyor path 12 Receiving stand 20 Cutting device 30 Placement mechanism 31 Drying tray 32 Transport path 40 Laser displacement meter 41 Transport path 50 Data Processing Unit 100, 100a, 100b Honeycomb molded body 110 Peripheral wall 120 cells 130 Bulkhead 140 Inner wall D1, D2 Partial outer shape data D3 Duplicate outer shape data area

Claims

1. A system for inspecting the outer peripheral shape of a honeycomb formed body between the cutting and the drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are continuously performed, an arrangement mechanism for arranging a plurality of the honeycomb formed bodies on a drying table in a direction perpendicular to the conveying direction so that one of the cut surfaces of the honeycomb formed bodies faces downward and predetermined positions of the outer peripheries during extrusion molding are aligned in the same direction; a laser displacement meter of a light-cutting type for measuring partial peripheral shape data of the honeycomb formed bodies at both ends among the plurality of honeycomb formed bodies arranged in a line in a direction perpendicular to the conveying direction on the drying table; a data processing unit that synthesizes the partial outer peripheral shape data; A system comprising:

2. The system according to claim 1 , wherein the partial peripheral shape data has peripheral shape data regions that overlap in a cross section of the honeycomb formed body.

3. The system of claim 2 , wherein the overlapping peripheral shape data areas are 20° or greater.

4. The system according to claim 1 or 2, wherein two laser displacement meters are provided for each end of the honeycomb molded body.

5. The system according to claim 4 , wherein the laser displacement meter is installed at an angle of 45±10° with respect to a direction perpendicular to the conveying direction.

6. A method for inspecting a peripheral shape of a honeycomb formed body between the cutting and the drying in a production line in which extrusion molding, cutting, and drying of the honeycomb formed body are continuously performed, comprising: a step of arranging a plurality of the honeycomb formed bodies on a drying table in a direction perpendicular to the conveying direction so that one of the cut surfaces of the honeycomb formed bodies faces downward and predetermined positions of the outer peripheries at the time of extrusion molding are aligned in the same direction; a step of measuring partial peripheral shape data of the honeycomb formed bodies at both ends of the plurality of honeycomb formed bodies arranged side by side in a direction perpendicular to the conveying direction on the drying table using a light-cutting type laser displacement meter; a step of synthesizing the partial outer peripheral shape data; A method for providing the above.

7. The method according to claim 6 , wherein the partial peripheral shape data has peripheral shape data regions that overlap in a cross section of the honeycomb formed body.

8. The method of claim 7 , wherein the overlapping peripheral shape data regions are 20° or greater.

9. The method according to claim 6 or 7, wherein two laser displacement meters are provided for each end of the honeycomb formed body.

10. The method according to claim 9, wherein the laser displacement meter is installed at an angle of 45±10° with respect to a direction perpendicular to the conveying direction.

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