JP2012161934A - Program for designing sealing mask and method for designing the sealing mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program for designing a sealing mask and a method for designing the sealing mask by which a mask useful for surely sealing a cell can be designed.SOLUTION: In order to seal the cell 70a opened at the end part of a honeycomb structure 70, the program for designing the sealing mask, which designs the sealing mask 170 where a mask hole 170a corresponding to a cell 70a is formed, makes an information processing apparatus 30 perform a process for detecting the position of the cell 70a to be sealed on the basis of the image of the end part of the honeycomb structure 70, and a process of deciding the position of the mask hole 170a of the sealing mask 170 on the basis of the position of the cell 70a. The position of the mask hole 170a is decided based on the real image of the honeycomb structure 70 where a designed sealing mask 170 seals. Thus positioning to the cell 70a of the honeycomb structure 70 can be easily carried out and the mask 170 useful for surely sealing the cell 70a can be designed.

Description

  The present invention relates to a sealing mask design program and a sealing mask design method, and more particularly, to seal a cell which is a plurality of through-holes opened at an end of a honeycomb structure, a mask hole which is a through-hole corresponding to the cell. The present invention relates to a sealing mask design program and a sealing mask design method for designing a sealing mask formed with a mask.

  Conventionally, honeycomb filter structures are widely known for DPF (Diesel particulate filter) and the like. This honeycomb filter structure has a structure in which one end side of a part of cells of a cell structure including a large number of through holes is sealed with a sealing material, and the other end side of the remaining cells is sealed with a sealing material.

  A mask is used to seal a predetermined cell among a large number of cells of the honeycomb structure. There are two types of masks for such applications. One is a type in which a through hole is provided in advance at a location corresponding to a cell to be sealed. The other is a type in which a through hole is not provided in advance, and a through hole is provided by a laser or the like at a location corresponding to a cell to be sealed after being attached to the end face of the honeycomb structure. The following Patent Documents 1 and 2 describe a method for sealing a honeycomb structure using a mask.

JP-A-2004-290766 JP 2008-132749 A

  By the way, the mask of the type in which the through holes are provided in advance needs to be aligned with the honeycomb structure. In particular, in the case of a green molded body before firing a sintered body that is manufactured through a drying process or a firing process, such as a DPF, the honeycomb structure has a through-hole in the mask due to shrinkage or deformation of the honeycomb structure in the manufacturing process. Positioning with the cell to be sealed becomes even more difficult. Some DPFs have a narrow cell pitch (for example, about 0.8 to 2.5 mm), and even if the through-holes of the mask can be appropriately arranged on a part of the end face of the honeycomb structure, the other parts are not displaced. It may occur.

  The present invention has been made in view of the above problems, and can be easily aligned with the end face of the honeycomb structure, and a mask useful for reliably sealing a predetermined cell can be designed. An object of the present invention is to provide a sealing mask design program and a sealing mask design method.

  The present invention is for sealing for designing a sealing mask in which a mask hole that is a through hole corresponding to a cell is formed in order to seal a cell that is a plurality of through holes that are opened at an end of the honeycomb structure. A mask design program, which is detected in a cell position detection step for detecting the position of each cell to be sealed based on an image of an end portion of a honeycomb structure sealed by a sealing mask to be designed, and a cell position detection step. A sealing mask design program for causing an information processing apparatus to execute a mask hole position determination step for determining a position of a mask hole of a sealing mask to be designed based on the position of each cell.

  According to this configuration, in order to seal a cell which is a plurality of through-holes opened at the end of the honeycomb structure, a sealing mask having a mask hole which is a through-hole corresponding to the cell is designed. The sealing mask design program is detected in the cell position detection step for detecting the position of each cell to be sealed based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed, and the cell position detection step. Based on the position of each cell, the information processing apparatus is caused to execute a mask hole position determining step for determining the position of the mask hole of the sealing mask to be designed. Therefore, the position of the mask hole is determined based on the actual image of the honeycomb structure sealed by the sealing mask to be designed, and the alignment with each cell of the honeycomb structure can be easily performed. It is possible to design a mask useful for reliably sealing a predetermined cell.

  In this case, the information processing apparatus is further caused to execute a mask hole size determining step for determining the size of the mask hole of the sealing mask to be designed based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed. Is preferred.

  According to this configuration, the sealing mask design program determines the size of the mask hole of the sealing mask to be designed based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed. The information processing apparatus is further caused to execute the determination step. For this reason, the size of the mask hole is determined based on the actual image of the honeycomb structure sealed by the sealing mask to be designed, and a mask useful for sealing a predetermined cell reliably is designed. can do.

  In this case, in the mask hole size determining step, the size of each cell to be sealed is detected based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed, and the design is made more than the size of each cell to be sealed. It is preferable to cause the information processing apparatus to execute a mask hole size determining step for determining the size of the mask hole so that the size of each mask hole of the sealing mask to be reduced is reduced.

  According to this configuration, in the mask hole size determining step, the size of each cell to be sealed is detected based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed, and the size of each cell to be sealed is determined. In addition, the information processing apparatus is caused to execute a mask hole size determining step for determining the size of the mask hole so that the size of each mask hole of the sealing mask to be designed becomes smaller. Therefore, the mask hole of the sealing mask to be designed can be accurately designed to have a size suitable for sealing with respect to the cell size of the actual honeycomb structure to be sealed.

  Further, in the cell position detection step, based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed, the information processing apparatus executes a cell position detection step of detecting the center position of each cell to be sealed, In the mask hole position determination step, the center position of each cell detected in the cell position detection step matches the center position of each mask hole of the sealing mask to be designed so that the mask hole of the sealing mask to be designed matches. It is preferable to cause the information processing apparatus to execute a mask hole position determining step for determining the position.

  According to this configuration, in the cell position detection step, the cell position detection step for detecting the center position of each cell to be sealed based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed is the information processing device. In the mask hole position determination step, the sealing mask to be designed is designed so that the center position of each cell detected in the cell position detection step matches the center position of each mask hole of the sealing mask to be designed. The information processing apparatus is caused to execute a mask hole position determining step for determining the position of the mask hole. By matching the center position of the cell with the center position of the mask hole, even if the distance between cells and the size of each cell are non-uniform, by appropriately designing the size of the mask hole A mask that can reliably seal the cell can be designed.

  Further, the present invention provides a sealing mask for designing a sealing mask in which a mask hole which is a through hole corresponding to a cell is formed in order to seal a cell which is a plurality of through holes opened at an end of the honeycomb structure. A method for designing a mask, which is detected in a cell position detecting step for detecting the position of each cell to be sealed based on an image of an end portion of a honeycomb structure sealed by a sealing mask to be designed, and the cell position detecting step. And a mask hole position determining step for determining the position of the mask hole of the sealing mask to be designed based on the position of each cell.

  In this case, it is preferable to further include a mask hole size determining step for determining the size of the mask hole of the sealing mask to be designed based on the image of the end portion of the honeycomb structure to be sealed by the sealing mask to be designed. .

  In this case, in the mask hole size determining step, the size of each cell to be sealed is detected based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed, and the design is made more than the size of each cell to be sealed. It is preferable to determine the size of the mask hole so that the size of each mask hole of the sealing mask to be reduced becomes small.

  In the cell position detection step, the center position of each cell to be sealed is detected based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed. In the mask hole position determination step, the cell position detection step It is preferable to determine the position of the mask hole of the sealing mask to be designed so that the center position of each of the cells detected in step 1 matches the center position of each mask hole of the sealing mask to be designed.

  According to the sealing mask design program and the sealing mask design method of the present invention, it is possible to design a mask useful for reliably sealing a predetermined cell.

It is a figure which shows the hardware constitutions of the information processing apparatus with which the design method of the mask for sealing concerning embodiment of this invention is performed. It is a flowchart which shows the outline of the design method of the mask for sealing concerning embodiment of this invention. (A) is a perspective view of a honeycomb structure, (b) is the elements on larger scale of (a). (A) is a perspective view of the mask for sealing, (b) is the elements on larger scale of (a). (A) is sectional drawing which shows a sealing apparatus, (b) is sectional drawing following (a) which shows operation | movement of a sealing apparatus. It is a flowchart which shows the process which the design program of the mask for sealing concerning embodiment of this invention performs an information processing apparatus. It is a figure which shows the gray scale image of the mask for sealing. It is a figure which shows the state which displayed the crosshair in the center of the workpiece | work in the image of FIG. It is a figure which shows the state which performed the whitening of the through-hole according to the pattern in the image of FIG. It is a figure which shows the state which detected the center coordinate of each cell in the image of FIG. 10A is a diagram illustrating a state in which cells having an excessively large size are pasted, and FIG. 10B is a diagram illustrating a state in which cells having an appropriate size are pasted. It is a figure which shows the state which affixed the cell of an appropriate size about each through-hole of the image of FIG. It is a figure which shows the image of the designed mask for sealing.

  Hereinafter, a sealing mask design program and a sealing mask design method according to an embodiment of the present invention will be described with reference to the drawings.

  In the sealing mask design method according to the present embodiment, in order to seal the cells that are a plurality of through holes opened at the end of the honeycomb structure for DPF or the like, the mask holes that are the through holes corresponding to the cells in advance are provided. The formed sealing mask is designed and executed by an information processing apparatus such as a workstation or a PC (Personal Computer). As the information processing apparatus 30, for example, a hardware configuration as shown in FIG. 1 is used. As shown in FIG. 1, an information processing device 30 includes a central processing unit (CPU) 31, a hard disk device 32 for storing programs and data, a main memory 33, and inputs such as a keyboard and a mouse. The apparatus 34 includes a display device 35 such as a CRT (Cathode Ray Tube) and a reading device 36 that reads a recording medium 37 such as a magnetic tape or a ROM.

  The hard disk device 32, the main memory 33, the input device 34, the display device 35, and the reading device 36 are all connected to the central processing unit 31. In the information processing apparatus 30, a recording medium 37 storing a program is loaded in the reading device 36, and the program is read from the recording medium 37 and stored in the hard disk device 32. Subsequently, the program stored in the hard disk device 32 is developed and executed on the main memory 33 by the central processing unit 31, and the sealing mask design method according to the present embodiment is executed. Note that the sealing mask design method according to the present embodiment may be executed only by the apparatus, not by the program as described above. All of the series of processes described below may be executed by the information processing apparatus, or a part of the series of processes may be executed by the information processing apparatus.

  Hereinafter, the outline of the sealing mask design method according to the present embodiment will be described with reference to the flowchart of FIG. In the present embodiment, an end portion where a cell is opened is photographed in a honeycomb structure for DPF or the like serving as a workpiece, and a scan image of the end portion is acquired. The sealing mask design program of the present embodiment causes the information processing apparatus 30 to read the scanned image of the honeycomb structure (S10).

  As shown in FIG. 3A, the honeycomb structure 70 as an example of the workpiece in the present embodiment is a cylindrical body in which a large number of through holes (cells) 70a are arranged substantially in parallel. The cross-sectional shape of the through hole 70a is a square as shown in FIG. The plurality of through holes 70a are arranged in a square arrangement in the honeycomb structure 70, that is, such that the central axis of the through hole 70a is located at the apex of the square, respectively. The square size of the cross section of the through hole 70a can be set to 0.8 to 2.5 mm on a side, for example.

  Further, the length of the honeycomb structure 70 in the direction in which the through holes 70a extend is not particularly limited, but may be, for example, 40 to 350 mm. Moreover, the outer diameter of the honeycomb structure 70 is not particularly limited, but may be, for example, 10 to 320 mm.

  The material of the honeycomb structure 70 is not particularly limited, but a ceramic material is preferable from the viewpoint of high temperature resistance. Examples thereof include alumina, silica, mullite, cordierite, glass, oxides such as aluminum titanate, silicon carbide, silicon nitride, and metal. The aluminum titanate can further contain at least one of magnesium and silicon. Such a honeycomb structure 70 is usually porous.

  Further, the honeycomb structure 70 may be a green molded body (unfired molded body) that becomes a ceramic material as described above by being fired later. The green molded body includes an inorganic compound source powder that is a ceramic raw material, an organic binder such as methylcellulose, and an additive that is added as necessary.

  For example, in the case of a green molded body of aluminum titanate, the inorganic compound source powder includes an aluminum source powder such as α-alumina powder, and a titanium source powder such as anatase-type or rutile-type titania powder. In addition, at least one of magnesium source powder such as magnesia powder and magnesia spinel powder and silicon source powder such as silicon oxide powder and glass frit can be contained.

  Examples of the organic binder include celluloses such as methylcellulose, carboxymethylcellulose, hydroxyalkylmethylcellulose, and sodium carboxymethylcellulose; alcohols such as polyvinyl alcohol; and lignin sulfonate. Examples of the additive include a pore-forming agent, a lubricant and a plasticizer, a dispersant, and a solvent.

  Returning to FIG. 2, the sealing mask design program of the present embodiment causes the information processing apparatus 30 to execute the sealing mask design method described in detail below (S20). The sealing mask design program of the present embodiment causes the information processing apparatus 30 to output a processing drawing of the designed sealing mask (S30).

  FIG. 4A shows an example of a mask 170 manufactured based on the design by the sealing mask design method of the present embodiment. The mask 170 is a circular plate-like member, and has a large number of through holes (mask holes) 170a extending in the thickness direction. The cross-sectional shape of the through hole 170a is a square corresponding to the through hole 70a (see FIG. 3B) of the honeycomb structure 70, as shown in FIG. 4B. The plurality of through holes 170a are arranged in a staggered manner as shown in FIG. 4B, and each through hole 170a is formed of the plurality of through holes 70a arranged in a square shape in FIG. 3B. These are disposed so as to face only the plurality of through holes 70a that are not adjacent to each other vertically and horizontally. Note that an orientation flat 170b may be formed on the mask 170 in order to facilitate positioning of the through hole 170a of the mask 170. The mask 170 can be, for example, a metal mask manufactured from metal.

  Sealing of the cells 70a of the honeycomb structure 70 is performed using the sealing device 200 as shown in FIGS. 5A and 5B using the mask 170 as described above. As shown in FIG. 5A, the sealing device 200 according to the present embodiment mainly includes a main body 210, an elastic plate 220, and a pump 250.

  The main body 210 is a rigid member formed from a metal (for example, stainless steel) or a polymer material (for example, fiber reinforced plastic). A recess 210d is formed in the main body 210, and a porous member 210p is attached to the inner surface of the recess 210d.

  The elastic plate 220 is disposed on the main body 210 so as to cover the opening surface of the recess 210d. The elastic plate 220 has elasticity and can be easily deformed. The elastic plate 220 is preferably a rubber plate.

  The elastic plate 220 is fixed to the main body 210 by a ring member 225. The ring member 225 has an opening 225a at a position corresponding to the recess 210d of the main body 210, thereby forming an annular shape. And the ring member 225 is arrange | positioned on the elastic board 220 so that the center part (opposite part with the recessed part 210d) in the elastic board 220 may be exposed.

  The main body 210 further includes a communication passage 210e that communicates with the porous member 210p on the bottom surface of the recess 210d. A pump 250 is connected to the communication path 210e.

  The pump 250 includes a cylinder 251 and a piston 253 disposed in the cylinder 251. A motor 255 that reciprocates the piston 253 in the axial direction is connected to the piston 253.

  A closed space V formed by the main body 210, the communication path 210e, and the cylinder 251 is formed between the elastic plate 220 and the piston 253, and the closed space V is filled with a fluid FL such as a liquid. ing.

  Then, by moving the piston 253, the fluid FL can be discharged from the recess 210d of the main body 210, and the elastic plate 220 can be brought into close contact with the inner surface of the recess 210d to form the recess 220d by the elastic plate 220 (FIG. 5 (a)), and the elastic plate 220 can be pulled away from the bottom of the recess 210d (state (b) of FIG. 5) to supply the fluid FL into the recess 210d.

  Then, as shown in FIG. 5A, the piston 253 is lowered to form a recess 220d by the elastic plate 220, and the sealing paste P manufactured as described above is stored in the recess 220d. deep.

  When the honeycomb structure 70 is sealed, a sealing mask 170 is disposed on the recess 210 d of the main body 210. The mask hole 170a of the sealing mask 170 is positioned by the above-described orientation flat b with respect to the honeycomb structure 70 so as to face only the hole to be sealed among the cells 70a of the ceramic honeycomb structure 70.

  Subsequently, as shown in FIG. 5B, the fluid FL is supplied into the recess 210d by moving the piston 253 of the pump 250 upward, thereby moving the elastic plate 220 toward the mask 170. Let Thereby, the sealing material P is supplied into a part of the through holes 70 a of the ceramic honeycomb structure 70 through the through holes 170 a of the mask 170, and the sealing portion 72 is formed.

  Subsequently, although not shown in the figure, the piston 253 is further raised to further supply the fluid FL between the elastic plate 220 and the main body 210, and the elastic plate 220 is deformed upwardly to form a ceramic honeycomb structure. 70 and the mask 170 are separated from the elastic plate 220. Then, if necessary, the direction of the honeycomb structure is reversed up and down by a reversing device (not shown), and similarly, the honeycomb structure 70 is placed on the other sealing portion 200 and is placed on the other surface of the ceramic honeycomb structure 70. The same sealing can be performed on the same. A ceramic honeycomb filter can be manufactured by drying and firing the sealed ceramic honeycomb structure. Such a ceramic honeycomb filter can be used as, for example, a DPF.

  Hereinafter, the processing in the sealing mask design program and the sealing mask design method of the present embodiment will be described in detail. As shown in FIG. 6, the sealing mask design program of the present embodiment causes the information processing apparatus 30 to read a scan image of the end face of the honeycomb structure 70 sealed by the mask 170 designed (S201). The scan image in this case can be a gray scale image of about 400 dpi (dot per inch), for example.

  As shown in FIGS. 6 and 7, the sealing mask design program causes the information processing apparatus 30 to set a reference such as XY coordinates for the work image 700 that is a scan image of the end face of the honeycomb structure 70 (S202). . Thereby, the position of the through-hole (cell) 700a in the work image 700 is specified by the XY coordinates. The sealing mask design program causes the information processing apparatus 30 to adjust the processing range, and places a portion other than the honeycomb structure 70 shown in the work image 700 outside the processing range and puts a black mask (S203). The sealing mask design program causes the information processing apparatus 30 to generate black and white binarized images of the work image 700 (S204). The binarization process of the work image 700 is completed by the processes of S201 to S204.

  As shown in FIGS. 6 and 8, the sealing mask design program causes the information processing apparatus 30 to display a crosshair Co at the center of the work image 700 of the honeycomb structure 70 (S205). The sealing mask design program causes the information processing apparatus 30 to assign an ID number to each through-hole 700a in the work image 700 and label the through-hole 700a (S206).

  As shown in FIGS. 6 and 9, the sealing mask design program causes the information processing apparatus 30 to perform the sealing of the sealing within the through hole 700 a in the work image 700 according to the pattern of the mask hole 170 a of the mask 170 to be designed. The through hole 700a that is not the target is whitened (S207). The sealing mask design program causes the information processing device 30 to correct the through-hole 700a that is unintentionally whitened and becomes a filled cell due to the influence of noise or the like (S208).

  As shown in FIGS. 6 and 10, the sealing mask design program causes the information processing apparatus 30 to pass through holes 700 a that are white cells that are not filled in the through holes 700 a in the work image 700. Is detected, and a crosshair Cc is displayed at the center coordinate (S209).

  The sealing mask design program pastes a cell 1700a of a predetermined size on the information processing apparatus 30 while aligning the center coordinates of the through-hole 700a and the center of the cell 1700a with respect to the through-hole 700a that has detected the center coordinate in the workpiece image 700. (S210). The sealing mask design program causes the information processing apparatus 30 to determine the matching state of the size of the cell 1700a and the through-hole 700a of the work image 700 and adjust the size of the cell 1700a (S211).

  As shown in FIG. 10, in the sealing mask design program of this embodiment, a plurality of sizes of cells 1700a standardized for the mask 170 to be designed are prepared. In this embodiment, since the sealing material P is injected into the cells 70a of the honeycomb structure 70 that seals the sealing material P through the mask holes 170a of the mask 170 to be designed, the mask to be designed is larger than the size of the through hole 700a of the work image 700. The size of the 170 mask holes 170a needs to be small.

  Since the sizes of the cells 70a of the honeycomb structure 70 actually manufactured vary, the sealing mask design program causes the information processing apparatus 30 to match the sizes of the cells 1700a and the through holes 700a of the work image 700. The state is determined for each through-hole 700a. As shown in FIG. 11A, it is not appropriate when the cell 1700a of the mask 170 to be designed is larger than the through-hole 700a of the work image 700. On the other hand, as shown in FIG. 11B, when the cell 1700a of the mask 170 to be designed is smaller than the through-hole 700a of the work image 700, it is determined that it is suitable. As shown in FIGS. 6 and 12, the sealing mask design program causes the information processing apparatus 30 to execute the above-described processing for each of the through holes 700 a of the work image 700.

  The sealing mask design program designs a cell 1700a having a common size smaller than each of the through holes 700a in the work image 700 among the plurality of standardized cells 1700a in the information processing apparatus 30. The mask hole 170a of the mask 170 to be set can be set. In this case, the actual mask 170 can be easily manufactured. Further, the sealing mask design program causes the information processing apparatus 30 to select the largest size cell 1700a among the cells 1700a having a size smaller than each of the through holes 700a among the plurality of standardized size cells 1700a. Can be set for each through-hole 700a in the workpiece image 700. In this case, the matching state between the cells 70a of the actual honeycomb structure 70 and the mask holes 170a of the mask 170 is good.

  Through the processes in S205 to S211, the sealing mask design image 1700 provided with the cells 1700a in a predetermined sealing pattern as shown in FIG. 13 is obtained, and the design process is completed. The sealing mask design program performs post-processing on the information processing device 30 as information on the designed sealing mask design image 1700, the cell 70a to be sealed, and the honeycomb structure 70 that is the workpiece, and their CSV (Comma Separated Values). The file is output (S212).

  According to the present embodiment, a sealing mask in which mask holes 170a that are through holes corresponding to the cells 70a are formed in order to seal the cells 70a that are a plurality of through holes that are opened at the end of the honeycomb structure 70. The sealing mask design program for designing 170 is detected by detecting the position of each cell 70a to be sealed based on the image of the end of the honeycomb structure 70 sealed by the sealing mask 170 to be designed. The information processing device 30 is caused to execute a step of determining the position of the mask hole 170a of the sealing mask 170 to be designed based on the position of each cell 70a. Therefore, the position of the mask hole 170a is determined based on the actual image of the honeycomb structure 70 to be sealed by the sealing mask 170 to be designed, and the alignment with each cell 70a of the honeycomb structure 70 is performed. It is possible to design a mask 170 that can be easily performed and is useful for reliably sealing a predetermined cell 70a.

  Further, according to the present embodiment, the sealing mask design program creates a size of the mask hole 170a of the sealing mask 170 to be designed based on the image of the end portion of the honeycomb structure 70 sealed by the sealing mask 170 to be designed. Further, the information processing device 30 is caused to execute the process of determining the length. Therefore, the size of the mask hole 170a is determined based on the actual image of the honeycomb structure 70 to be sealed by the sealing mask 170 to be designed, which is useful for reliably sealing a predetermined cell 70a. Mask 170 can be designed.

  Further, according to the present embodiment, the size of each cell 70a to be sealed is detected based on the image of the end portion of the honeycomb structure 70 sealed by the sealing mask 170 to be designed, and the size of each cell 70a to be sealed is detected. In addition, the information processing apparatus 30 is caused to execute a step of determining the size of the mask hole 170a so that the size of each mask hole 170a of the sealing mask 170 to be designed becomes smaller. Therefore, the mask hole 170a of the sealing mask 170 to be designed can be accurately designed to have a size suitable for sealing with respect to the size of the cell 70a of the actual honeycomb structure 70 to be sealed. .

  In addition, according to the present embodiment, the information processing device 30 executes a process of detecting the center position of each cell 70a to be sealed based on the image of the end of the honeycomb structure 70 to be sealed by the sealing mask 170 to be designed. And determining the position of the mask hole 170a of the sealing mask 170 to be designed so that the center position of each of the detected cells 70a matches the center position of the mask hole 170a of the sealing mask 170 to be designed. Is executed by the information processing apparatus 30. Since the center position of the cell 70a and the center position of the mask hole 170a coincide with each other, even if the distance between the cells 70a and the size of each cell 70a are not uniform, the size of the mask hole 170a is appropriately set. By designing the mask 170, it is possible to design the mask 170 that can reliably seal the cell 70a.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 30 ... Information processing apparatus, 31 ... Central processing unit, 32 ... Hard disk device, 33 ... Main memory, 34 ... Input device, 35 ... Display device, 36 ... Reading device, 37 ... Recording medium, 70 ... Honeycomb structure, 70a ... Through hole, 170 ... Mask for sealing, 170a ... Through hole, 170b ... Mark, 200 ... Sealing device, 210 ... Main body part, 210d ... Recess, 210e ... Communication path, 210p ... Porous member, 220 ... Elastic plate, 225 ... Ring member, 225a ... opening, 250 ... pump, 251 ... cylinder, 253 ... piston, 255 ... motor, 700 ... work image, 700a ... through hole, 1700 ... mask design image for sealing, 1700a ... cell.

Claims (8)

A sealing mask design program for designing a sealing mask in which a mask hole which is a through hole corresponding to the cell is formed in order to seal a cell which is a plurality of through holes opened at the end of the honeycomb structure. Because
A cell position detecting step for detecting the position of each of the cells to be sealed based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed;
A mask hole position determining step for determining the position of the mask hole of the sealing mask to be designed based on the position of each of the cells detected in the cell position detecting step;
Mask design program for causing an information processing apparatus to execute the above.   The information processing apparatus further includes a mask hole size determining step for determining a size of the mask hole of the sealing mask to be designed based on an image of the end portion of the honeycomb structure sealed by the sealing mask to be designed The mask design program for sealing according to claim 1 to be executed.   In the mask hole size determining step, the size of each cell to be sealed is detected based on an image of the end portion of the honeycomb structure sealed by the sealing mask to be designed, and the size of each cell to be sealed is determined. 3. The information processing apparatus according to claim 2, wherein the information processing apparatus executes the mask hole size determination step of determining the size of the mask hole so that the size of each of the mask holes of the sealing mask to be designed is smaller. Sealing mask design program. In the cell position detection step, the cell position detection step of detecting a center position of each of the cells to be sealed based on an image of the end portion of the honeycomb structure sealed by the sealing mask to be designed is the information processing. Let the device run,
In the mask hole position determining step, the sealing position to be designed is designed such that the center position of each of the cells detected in the cell position detection step matches the center position of each of the mask holes of the sealing mask to be designed. The mask design program for sealing of any one of Claims 1-3 which makes the said information processing apparatus perform the said mask hole position determination process which determines the position of the said mask hole of the mask for a mask. This is a sealing mask design method for designing a sealing mask in which mask holes that are through holes corresponding to the cells are formed in order to seal cells that are a plurality of through holes that are opened at the end of the honeycomb structure. And
A cell position detecting step for detecting the position of each of the cells to be sealed based on the image of the end portion of the honeycomb structure sealed by the sealing mask to be designed;
A mask hole position determining step for determining the position of the mask hole of the sealing mask to be designed based on the position of each of the cells detected in the cell position detecting step;
A sealing mask design method including:   The method further comprises a mask hole size determining step of determining a size of the mask hole of the sealing mask to be designed based on an image of the end portion of the honeycomb structure sealed by the sealing mask to be designed. 5. A sealing mask design method according to 5.   In the mask hole size determining step, the size of each cell to be sealed is detected based on an image of the end portion of the honeycomb structure sealed by the sealing mask to be designed, and the size of each cell to be sealed is determined. The sealing mask design method according to claim 6, wherein the size of the mask hole is determined so that the size of each of the mask holes of the sealing mask to be designed is smaller. In the cell position detection step, based on the image of the end of the honeycomb structure sealed by the sealing mask to be designed, the center position of each of the cells to be sealed is detected,
In the mask hole position determining step, the sealing position to be designed is designed such that the center position of each of the cells detected in the cell position detection step matches the center position of each of the mask holes of the sealing mask to be designed. The sealing mask design method according to claim 5, wherein a position of the mask hole of the mask for use is determined.

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