JP5169355B2 - Buffer material design support program and buffer material design support device - Google Patents

Description

  The present invention relates to a buffer material design support program and a buffer material design support device, and more particularly to a buffer material design support program and a buffer material design support device that support the design of a buffer material for a package.

When packing an article in a cardboard box, a cushioning material is used to fix the article in the box so that the article does not shake and break in the box during transportation. Such a cushioning material is produced by a cardboard box manufacturer by an order from an article manufacturer or the like. When ordering the cushioning material, it is necessary to provide the cardboard manufacturer with information for specifying the shape of the article to be packed. Conventionally, two-dimensional drawings are generally used as the shape information of articles.
“Design of cushioning material using packing materials”, [online], [Search February 27, 2008], <http://www.nsksystem.co.jp/product/artios_ver7/advanced_structuredesign.htm>

  However, in general, an article manufacturer designs an article using a three-dimensional CAD system. Therefore, from the viewpoint of the manufacturer of the article, it is very convenient if it can be exchanged with a corrugated board manufacturer using three-dimensional CAD data.

  Conventionally, as a background of the use of two-dimensional drawings, the fact that a three-dimensional CAD system is not widespread among cardboard box manufacturers can be cited. However, even if a three-dimensional CAD system is introduced on the back of the actual situation, it is considered that the design of an appropriate cushioning material shape is difficult with the three-dimensional CAD system due to the complexity of the operation. It is understood that it is a cause.

  The present invention has been made in view of the above points, and is provided with a shock absorber design support program and a shock absorber design support device that can appropriately support shock absorber design using three-dimensional data of a package. For the purpose of provision.

  Therefore, in order to solve the above-described problem, the cushioning material design support program, based on the relative positional relationship of the packing data, which is the three-dimensional CAD data of the packing, with respect to the packing box, and the size information of the packing box. The packing material data in the storage direction with respect to the packing box based on the buffer material data generation procedure for generating the buffer material data which is the three-dimensional CAD data of the plate-shaped or block-shaped buffer material and the information indicating the positional relationship A silhouette line deriving procedure for deriving the silhouette line and a buffer material data dividing procedure for dividing the buffer material data in the storage direction based on the silhouette line are executed.

  Such a cushioning material design support program can appropriately support the design of the cushioning material using the three-dimensional data of the package.

  According to the present invention, it is possible to provide a shock-absorbing material design support program and a shock-absorbing material design support device that can appropriately support the shock-absorbing material design using the three-dimensional data of the package.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a functional configuration example of a shock absorber design apparatus according to an embodiment of the present invention. In FIG. 1, a cushioning material design apparatus 10 includes a CAD system unit 11 and a cushioning material design unit 12.

  The CAD system unit 11 is realized by a general three-dimensional CAD program. Therefore, it has a function provided in a general three-dimensional CAD program. The cushioning material design unit 12 executes a process for supporting the design of a cushioning material used for a packaging box such as a cardboard box. In other words, the buffer material design unit 12 uses the package data 50, which is three-dimensional CAD data of an article (package) to be packed, as input information, and uses the CAD system unit 11 as necessary, and the buffer to be designed. The buffer material data 60 which is the three-dimensional CAD data of the material is generated. In this embodiment, the packing box is a rectangular parallelepiped cardboard box or the like, and the cushioning material is assumed to be a plate or block cardboard or polystyrene foam.

  The buffer material design unit 12 includes a package data reading unit 121, a package layout unit 122, a packing box generation unit 123, a buffer material layout unit 124, a silhouette line deriving unit 125, a die cutting processing unit 126, an opposing surface correction unit 127, It has a curved portion correction unit 128, a packing box size table 131, a buffer material table 132, a parameter table 133, and the like. The function of each part will be clarified in the description of the processing procedure.

  FIG. 2 is a diagram illustrating a hardware configuration example of the shock absorber design apparatus according to the embodiment of the present invention. 2 includes a drive device 100, an auxiliary storage device 102, a memory device 103, a CPU 104, an interface device 105, a display device 106, and an input connected to each other via a bus B. Device 107.

  A program that realizes processing in the buffer material design apparatus 10 is provided by a recording medium 101 such as a CD-ROM. When the recording medium 101 on which the program is recorded is set in the drive device 100, the program is installed from the recording medium 101 to the auxiliary storage device 102 via the drive device 100. The auxiliary storage device 102 stores the installed program and also stores necessary files and data (for example, a packing box size table 131, a buffer material table 132, a parameter table 133, and the like).

  The memory device 103 reads the program from the auxiliary storage device 102 and stores it when there is an instruction to start the program. The CPU 104 realizes functions related to the shock absorber design apparatus 10 according to a program stored in the memory device 103. The interface device 105 is used as an interface for connecting to a network. The display device 106 displays a GUI (Graphical User Interface) or the like by a program. The input device 107 includes a keyboard and a mouse, and is used for inputting various operation instructions.

  The program need not be installed from the recording medium 101 and may be downloaded from another computer via a network.

  Hereinafter, the processing procedure of the buffer material design apparatus 10 will be described. 3 and 4 are flowcharts for explaining a processing procedure by the buffer material design apparatus.

  In step S101, the CAD system unit 11 forms a virtual three-dimensional space (three-dimensional coordinate system) in the memory device 103 of the cushioning material design apparatus 10, and displays a CAD screen that represents the three-dimensional space. 106.

  FIG. 5 is a diagram illustrating a display example of a CAD screen. In the figure, a three-dimensional coordinate system including an X axis, a Y axis, and a Z axis is shown. Each coordinate axis of the three-dimensional coordinate system has an absolute meaning with respect to the buffer material design unit 12. Specifically, the X axis and the Y axis are treated as coordinate axes that determine the direction of each side surface of the rectangular parallelepiped packaging box. Further, the XY plane is treated as a plane for forming the bottom surface of the packaging box. Further, the Z-axis is handled as a storage direction (also a take-out direction) of the package with respect to the packing box. That is, the package is taken in and out in the Z-axis direction. Hereinafter, for convenience, the X-axis direction is also referred to as the width direction (of the packaging box), the Y-axis direction as the depth direction (of the packaging box), and the Z-axis direction as the height direction (of the packaging box).

  Note that the meaning of the coordinate axes may not be predetermined. For example, the operator may set it.

  Subsequently, the package data reading unit 121 acquires the package data 50 and reads it into the memory device 103 (S102). The package data 50 may be acquired from a file stored in the auxiliary storage device 102 or may be acquired via a network. In addition, the CAD system unit 101 may generate the information in response to an operation instruction by the user in the state of step S101.

  Subsequently, the package arrangement unit 122 arranges the package data 50 in the three-dimensional space (S103). Specifically, the package arrangement unit 122 considers the absolute meaning of each coordinate axis in the three-dimensional coordinate system (that is, the relative positional relationship with the packaging box) and determines the arrangement position of the package data 50. Determine the coordinate values. The package arrangement unit 122 displays the package data 50 arranged in the three-dimensional space on the CAD screen using the CAD system unit 11. FIG. 6 shows a display example of a CAD screen on which package data is arranged.

  Subsequently, the package arrangement unit 122 calculates the center of gravity (the coordinate value) of the package data 50 and the weight of the package related to the package data 50 (S104). If the package data 50 is a solid model, the gravity center and weight can be calculated by giving the package data 50 the specific gravity of the package. The value indicating the specific gravity may be input by the operator, or may be associated with the package data 50 in advance (for example, may be included in the package data 50 as an attribute value).

  Subsequently, the packing box generation unit 123 generates packing box data 70 related to a packing box that can pack the packing data 50 at the arrangement position based on the outer size (outside size) of the packing data 50, It arrange | positions on a three-dimensional space (S105).

  FIG. 7 is a diagram illustrating a display example of a CAD screen on which packing box data is arranged. As shown in the figure, in the present embodiment, the packing box data 70 is constituted by each plane relating to the inner shape of the packing box.

  The packing box generation unit 123 determines a packing box that can pack the packing data 50 based on information registered in the packing box size table 131. FIG. 8 is a diagram illustrating a configuration example of the packing box table. As shown in the figure, the packing box table 131 registers the inner size (inner width, depth, height) for each packing box.

  In addition, the arrangement position of the packing box data 70 (that is, the relative position of the packing box with respect to the package) may be determined based on a predetermined rule, or may be set by the operator. In the former case, for example, there is a rule such that the intersection of diagonal lines on the bottom surface of the packing box data 70 is arranged so as to coincide with the origin of the three-dimensional coordinate system. In this case (when the arrangement position of the packing box data 70 is determined based on a predetermined rule), the packing box generation unit 123 determines not only the inner shape size of the packing box data 70 but also the arrangement position of the packing box data 70. Considering the above, determine the packing box that can be packed. This is because, when the arrangement position of the packing box data 70 is determined, whether packing is possible or not depends on the arrangement position of the package data 50.

  The packing box data 70 may be generated in advance and stored in the auxiliary storage device 102. If the size of the packaging box can be freely selected, the packaging box data 70 may be created by the operator.

  Note that the relative positional relationship between the package data 50 and the packaging box data 70 is set or determined in steps S103 and S105.

  Subsequently, the cushioning material placement unit 124 executes processing for placing the cushioning material data 60 in the three-dimensional space. First, the cushioning material placement unit 124 determines the number (number of sheets) of cushioning material that is required (S106). The number is calculated based on the following formula, for example.

Number of cushioning materials (N) = Weight of package ÷ Strength of cushioning material (1)
Here, the strength (durable weight) of the cushioning material is registered in the cushioning material table 132. FIG. 9 is a diagram illustrating a configuration example of the buffer material table. As shown in the figure, in the buffer material table 132, the product number, type, thickness, strength, and the like are registered for various buffer materials. Therefore, the cushioning material arranging unit 124 acquires the strength of the cushioning material to be used from the cushioning material table 132, and the number of cushioning materials based on the strength and the weight of the packaged item calculated by the packaged material arranging unit 122. Is calculated. The cushioning material to be used may be selected by the operator, or the cushioning material arranging unit 124 may automatically determine based on the package data 50 or the packaging box data 70. In the case of automatic determination, the determination may be made in advance based on a table or the like in which the correspondence relationship between the package or the packing box and the cushioning material is registered. Hereinafter, the number (N) of cushioning materials is simply referred to as “number (N)”.

  Subsequently, the cushioning material placement unit 124 determines the placement position of the cushioning material data 60 according to whether the number (N) is an even number or an odd number. In the present embodiment, each cushioning material is arranged so that the surface of each cushioning material is parallel to the side surface of the packaging box data 70 that is substantially orthogonal to the longitudinal direction of the packaged data 50 (in this embodiment, An example in which the arrangement position of each buffer material data 60 is determined based on the rule of being arranged in parallel with the XZ plane will be described. The longitudinal direction of the package data 50 based on the buffer material arrangement unit 124, the total length (maximum length) of the package data 50 in the X-axis direction and the total length (maximum length) of the package data 50 in the Y-axis direction. (That is, the direction in which the total length is large) is determined. However, the arrangement direction of the cushioning material is not necessarily the longitudinal direction, and the operator may select it.

  When the number (N) is an odd number (NO in S108), the cushioning material arranging unit 124 has a distance (L1) (L1) from one end of the package data 70 to the center of gravity (G) of the package data 70 in the longitudinal direction. = Full length in the longitudinal direction−the position of the center of gravity) and a distance (L2) from the other end to the position of the center of gravity (L2 = the total length in the longitudinal direction−L1). The arrangement positions (Y coordinate values in the present embodiment) of each buffer material data 60 are determined so that the buffer materials are arranged at equal intervals between each of L2 (S109). That is, the interval between each buffer material data 60 in each of L1 and L2 is calculated by the following equation.

Interval in L1 (l1) = L1 ÷ {(Number (N) −1) ÷ 2 + 1}
Interval at L2 (l2) = L2 ÷ {(Number (N) −1) ÷ 2 + 1}
FIG. 10 is a diagram illustrating an example of the arrangement position of the buffer material data when the number of the buffer materials is an odd number. In the figure, the buffer material data 60-3 is arranged at the center of gravity position G, and the buffer material data 60-1 and 2 at the L1 side at the l1 interval and the buffer material data 60 at the l2 interval at the L2 side from the center of gravity position. An example in which −4 and 5 are arranged is shown.

  On the other hand, when the number (N) is an even number (YES in S108), the cushioning material placement unit 124 does not place the cushioning material at the center of gravity. However, on both the L1 side and the L2 side, the distance (distance) between the first cushioning material disposed closest to the center of gravity position and the center of gravity position is the first cushioning material and another cushioning material (centroid The arrangement position (Y coordinate value in the present embodiment) of each buffer material data 60 is determined so as to be smaller than the interval (distance) with respect to the position (the buffer material arranged farther than the first buffer material). (S110). More specifically, the arrangement position of each cushioning material data 60 is determined so that the distance from the center of gravity to the first cushioning material is half of the subsequent distances on both the L1 side and the L2 side. That is, the interval between each buffer material data 60 in each of L1 and L2 is calculated by the following equation.

Interval from the center of gravity position to the first sheet in L1 (l1 ₀ ) = L1 ÷ {number (N) +1}
The interval after the first sheet in L1 (l1 _n ) = l1 ₀ × 2
Interval from the position of the center of gravity in L2 to the first sheet (l2 ₀ ) = L2 ÷ {number (N) +1}
Interval after the first sheet in L2 (l2 _n ) = l2 ₀ × 2
FIG. 11 is a diagram illustrating an example of the arrangement position of the buffer material data when the number of the buffer materials is an even number. In the figure, the L1 side, the distance is arranged one buffer material data 60-12 in a position which is l1 ₀ between the position of the center of gravity G, thereafter it is arranged buffer material data 60-11 in l1 _n intervals Yes. Further, the L2 side, the distance between the position of the center of gravity G is located one buffer material data 60-13 in a position which is l2 _0, later cushioning material data 60-14 are arranged at l2 _n intervals.

  According to the above arrangement method, the buffer material can be concentrated near the center of gravity regardless of whether the number of the buffer materials is odd or even. Therefore, the support state of the package by the cushioning material can be stabilized.

  FIG. 12 is a diagram illustrating a display example of a CAD screen indicating the arrangement position of the buffer material data. This figure corresponds to the case where the number of cushioning materials is an even number (FIG. 11). This figure is an example in which a three-dimensional space is displayed on the XY plane.

  Subsequently, the cushioning material placement unit 124 generates the cushioning material data 60 based on the determined placement position, and displays it on the CAD screen (FIG. 4: S111). Specifically, the buffer material data 60 is generated so as to support the package in a state in accordance with a predetermined arrangement form at each arrangement position. In the present embodiment, each buffer material is exemplified as an arrangement form that is parallel to a plane orthogonal to the longitudinal direction of the package. That is, the cushioning material arranging unit 124 has a side surface that is parallel to the side surface of the packaging box data 70 that is orthogonal to the longitudinal direction of the packaged data 50 (in this embodiment, parallel to the XZ plane). A rectangular parallelepiped is generated as the buffer material data 60. Further, the cushioning material arrangement unit 124 is arranged so that the four side surfaces of the cushioning material data 60 facing the side surfaces of the packaging box data 70 are in contact with the packaging box data 70 so that the package can be supported (that is, the rectangular parallelepiped). The buffer material data 60 is generated so that the width (distance in the X-axis direction) and the height (distance in the Z-axis direction) coincide with the packaging box data 70 (that is, the size inside the packaging box).

  The thickness of the buffer material data 60 (thickness in the Y-axis direction) is determined based on the value of “thickness” in the buffer material table 132.

  FIG. 13 is a diagram illustrating a display example of a CAD screen on which buffer material data is arranged. In the figure, an example in which the buffer material data 60-11 to 14 is generated is shown. At this stage, the existence of the package data 50 is not considered. That is, the buffer material data 60 is also generated for a portion that interferes with the package data 50.

  In addition, the arrangement | positioning form of a buffering material does not necessarily need to be parallel with respect to the side surface of a packaging box. Further, the cushioning materials may not be parallel to each other. For example, the cushioning material may be arranged so as to form a zigzag when viewed from above (viewed from the storage direction).

  Subsequently, the silhouette line deriving unit 125 derives a silhouette line (a line indicating the outermost shape) in the package storage direction (X-axis direction in the present embodiment) for the package data 60 (S112). Here, the silhouette line is conceptually an outer edge of a shadow projected on a plane when light is irradiated from a certain direction on a three-dimensional object.

  FIG. 14 is a diagram showing silhouette lines in the packaged data of the present embodiment. A line indicated by 51 in the figure is a silhouette line of the package data 50. In the same figure, the package data 50 shown large is the figure seen from the accommodation direction.

  Note that the Z coordinate value (position in the storage direction) of the silhouette line may be different on the left and right of the package data 50 depending on the shape of the package.

  FIG. 15 is a diagram illustrating an example in which the position of the silhouette line is different between the left and right sides of the package. In the case of the package 50a having a cross-sectional shape as shown in the figure, the right silhouette line 51r is higher than the left silhouette line 51l in the figure. In the figure, the white arrow indicates the storage direction of the package.

  Subsequently, the silhouette line deriving unit 112 places the silhouette line 51 outside the package data 50 (that is, the portion where the packaging material data 50 does not exist), and in the width direction of the cushioning material data 60 (this embodiment). , The direction is both the X-axis direction and the direction perpendicular to the longitudinal direction of the packaged data 50.) It is formed by horizontally moving (translating) the XY plane (the bottom surface of the packaged data 50). A surface to be processed (hereinafter referred to as “silhouette line surface”) is generated (S113).

  FIG. 16 is a diagram showing a silhouette line surface in the present embodiment. In the present embodiment, the Z coordinate value of the silhouette line 51 is constant. Therefore, the generated silhouette line surface 80 is a plane. However, the silhouette line surface 80 can be a complicated curved surface depending on the shape of the package. In the figure, an example in which the cushioning material data 60 and the packing box data 70 are also displayed in the small rectangle at the lower right.

  Subsequently, the silhouette line deriving unit 125 divides (cuts) each cushioning material data 60 by the silhouette line surface 80, so that a surface (divided surface) related to the divided portion of both the divided cushioning material data 60 is obtained. Generate (S114). Strictly speaking, it is only necessary to divide each buffer material 60 at least at a portion that intersects the silhouette line surface 80 (that is, a portion that interferes with the packaged data 50 may be excluded from the division target).

  Subsequently, the die cutting processing unit 126 subtracts the package data 50 from each buffer material data 60 (ie, a Boolean operation) (that is, by removing the interfering portion), thereby Then, a surface facing the package data 50 is generated (S115). Note that the Boolean operation may be performed before division or cutting by the silhouette line plane 80. In any case, each buffer material data 50 is divided into two parts vertically (in the storage direction) by the Boolean calculation and the division or cutting by the silhouette line surface 80.

  FIG. 17 is a diagram illustrating a state where the buffer material data is divided into two. In the figure, each of the cushioning material data 60-11 to 14 is divided into two vertically, so that eight cushioning material data 60 of 60-11a to 14a and 60-11b to 14b are generated. In the following, for each cushioning material data 60, a surface formed by being divided by the silhouette line surface 80 is referred to as a divided surface, and a surface formed by a Boolean operation is referred to as a facing surface.

  In addition, by dividing the cushioning material data 60 by the silhouette line surface 80, it is possible to derive the shape of the cushioning material that facilitates storage of the package and facilitates removal of the package.

  For example, FIG. 18 is a diagram for explaining the effect of dividing the cushioning material based on the silhouette line. In the figure, the package 50a shown in FIG. 15 is shown. Here, the cushioning materials 60a and 60b are not cut in the silhouette line. In this case, unless the part shown by 61 is cut | disconnected about the buffer material 60a, a package can be accommodated smoothly and cannot be taken out. On the other hand, such a situation can be avoided by cutting the cushioning material based on the silhouette line shown in FIG.

  Subsequently, the die cutting processing unit 126 retreats at least one of the divided surfaces facing each other for the buffer material data 60 to be paired (forms a new divided surface in a direction opposite to the opposed divided surface) ( S116). Thereby, a gap is formed between the divided surfaces facing each other.

  FIG. 19 is a diagram illustrating a state in which a gap is formed between the facing divided surfaces. The die cutting processing unit 126 determines the distance of the gap based on the parameter table 133.

  FIG. 20 is a diagram illustrating a configuration example of a parameter table. In the parameter table 133 shown in the figure, the part name, the part number, the die cutting distance, and the necessity of the curve portion processing are registered for each part to be packaged. Here, the die cutting distance is a parameter that defines the gap between the divided surfaces. Therefore, the die cutting processing unit 126 determines the distance for retreating the divided surface based on the die cutting distance registered for the part related to the package data 50. As for which part the package data 50 corresponds to, the part number or the like may be included in the package data 50 as an attribute value, or the operator may input the part number or the like. Also good.

  The reason why the dividing surface is retracted is to reduce the consumption of the buffer material within a range in which the function as the buffer material can be maintained.

  Thus, the generation of the buffer material data 50 is completed. FIG. 21 is a diagram illustrating an example of completed buffer material data. In the figure, an example is shown in which eight buffer material data 60 of buffer material data 60-11a to 14a and buffer material data 60-11b to 14b are generated.

  Subsequently, a processing procedure effective when it is desired to reduce the manufacturing cost of the cushioning material will be described. FIG. 22 is a flowchart for explaining a processing procedure for reducing the manufacturing cost of the cushioning material. The process of FIG. 11 is executed after the process of FIG.

  In step S201, the facing surface correction unit 127 determines that the facing surface of the buffer material data 60 (the surface formed by the Boolean calculation) is in the depth direction (that is, the thickness direction of the buffer material data 60. In this embodiment, the Y-axis direction )), It is determined whether it has a slope (including a curved (curved) slope). As the state having such an inclination, the positions in the Z-axis direction of two sides (hereinafter, referred to as “cut lines”) that are not parallel to the thickness direction on the opposing surface (perpendicular to each other in the present embodiment). Different states (hereinafter referred to as “state 1”), or even if the positions of the two cut lines are the same, the opposing surface has irregularities in the thickness direction (hereinafter referred to as “ This corresponds to “state 2”).

  FIG. 23 is a diagram illustrating an example in which the facing surface has an inclination. (B) in the same figure shows the arrow view which looked at the buffer material data 60-12b from the direction of the arrow in (A). Here, the cut line C1 is a front-side cut line, and the cut line C2 is a back-side cut line. This state corresponds to the state 1 described above.

  Subsequently, the facing surface correction unit 127 determines how to repair the facing surface (and thus the cut line) (S202). For example, when the opposite surface is corrected based on one of the two cut lines, the opposite surface correction unit 127 uses the cut line as the arrangement direction of the package data 50 with respect to the buffer material data 60. In the present embodiment, the opposite surface is corrected to the surface formed by horizontally moving (translating) the XY plane in the longitudinal direction of the package data 50 (S203). In this case, from the viewpoint of avoiding interference of the buffer material with respect to the package, it is preferable to select the lower one of the two cut lines in the Z-axis direction position (in the entire width direction of the buffer material data 60). . However, when the deformation of the cushioning material can be expected, the one having the higher position in the Z-axis direction among the two cut lines may be selected.

  On the other hand, when the opposite surface is corrected based on an arbitrary line between two cut lines, the opposite surface correction unit 127 sets the line in the arrangement direction of the packaged data 50 with respect to the cushioning material data 60 (this embodiment). Then, the opposite surface is corrected to the surface formed by horizontally moving (translating) the XY plane in the longitudinal direction of the package data 50 (S204). In addition, it is good to employ | adopt the line from which the Z coordinate value always becomes the minimum (in the whole area of the width direction of the buffer material data 60) between two cut lines. By doing so, it is possible to avoid buffering between the package and the cushioning material.

  Note that the operator may select which of steps S203 and S204 is to be executed, or may be automatically executed.

  FIG. 24 is a diagram illustrating a state in which the facing surface is compensated. In the figure, a surface 62 is a surface formed based on a cut line or a line between two cut lines. By correcting the opposing surface with the surface, the inclination or curvature in the thickness direction of the opposing surface is removed, and the processing of the cushioning material can be simplified.

  In addition, you may perform the correction | amendment similar to an opposing surface with respect to a division surface (surface formed by the silhouette line surface).

  Subsequently, the curve portion correction unit 128 determines whether or not the curve portion of the cut line needs to be corrected based on the value of “Necessity of curve portion processing” in the parameter table 133 (S205). When the value is “necessary” (YES in S205), the curve portion correction unit 128 is based on a three-point fulcrum, and the cut line of each cushioning material data 60 is corrected to a combination of straight lines (line segments) and corrected. Based on the cut line, the opposing surface of each buffer material data 60 is corrected (S206).

  FIG. 25 is a diagram for explaining cutline correction processing. In the figure, (A) shows before compensation, and (B) shows after compensation. In (A), it turns out that the cut line of the buffer material data 60 is a curve (arc). On the other hand, in (B), it can be seen that the cut line of the buffer material data 60 is configured by connecting the line segments in contact with the curve.

  An example of the processing procedure of such cutline correction processing will be described. FIG. 26 is a flowchart for explaining an example of a processing procedure of cutline correction processing. FIG. 27 is an auxiliary diagram for explaining a processing procedure of cutline correction processing. The reference numbers used for describing each step in FIG. 26 are those shown in FIG.

  In step S301, the curve portion correction unit 128 performs a cross section of the packaged data 50 (on the plane in the height and width directions of the buffer material data 60 on the Y coordinate where the cut line of the buffer material data 60 is located (this embodiment Then, the intersection of the perpendicular 81 from the center or the center of gravity of the cross section) on the XZ plane) and the cut line of the buffer material data 60 is obtained.

  Subsequently, the curved line correction unit 128 obtains a tangent (here, a horizontal line 82) with the cut line at the intersection (S302). Subsequently, the curved line correction unit 128 obtains two line segments 83a and 83b that connect the intersection point and both end points of the cut line (S303). Subsequently, the curve portion correction unit 128 obtains two straight lines 84a and 84b that connect the midpoints of the line segments 83a and 83b and the center or center of gravity of the cross section of the packaged data 50 (S304). Subsequently, the curved line correction unit 128 obtains tangents 85a and 85b at the intersections between the straight lines 84a and 84b and the cut line (S305). Subsequently, the curved line correction unit 128 sets a broken line (a continuous line segment) formed by the horizontal line 82, the tangent line 85a, and the tangent line 85b as a new cut line (S306). Subsequently, the curve portion correction unit 128 regenerates the facing surface based on the new cut line (S307). Thereby, the said opposing surface is formed by the combination of a plane. Therefore, the processing of the cushioning material can be facilitated, and the manufacturing cost can be reduced.

  In the case of a complicated shape, the horizontal line in contact with the cut line may be the horizontal line 82 described above without considering the vertical line 81. A line segment connecting the contact point between the cut line and the horizontal line 82 and both end points of the cut line may be set as line segments 83a and 83b.

  Moreover, the correction of the cut line is not necessarily limited to the three-point fulcrum. You may correct | amend so that it may contact with a package in four or more points.

  As described above, according to the cushioning material design apparatus 10 in the present embodiment, the design of the cushioning material using the three-dimensional data of the article to be packed can be simplified.

  It should be noted that the cushioning material placement unit 124 determines the placement position of the cushioning material data 60, the silhouette line deriving unit 125 derives a silhouette line, and the like. , Each is highly independent. Therefore, each function can be implemented regardless of the presence or absence of other functions, and the effect is achieved.

  As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to such specific embodiment, In the range of the summary of this invention described in the claim, various deformation | transformation・ Change is possible.

Regarding the above description, the following items are further disclosed.
(Appendix 1)
On the computer,
A cushioning material that is three-dimensional CAD data of a plate-like or block-like cushioning material based on the relative positional relationship of the packaging data that is the three-dimensional CAD data of the packaged product with respect to the packaging box and the size information of the packaging box Buffer material data generation procedure for generating data,
Based on the information indicating the positional relationship, a silhouette line derivation procedure for deriving a silhouette line of the package data in the storage direction with respect to the packaging box;
A cushioning material design support program for executing a cushioning material data division procedure for dividing the cushioning material data in the storage direction based on the silhouette line.
(Appendix 2)
An interference part removal procedure for removing a part that interferes with the package data from the buffer material data;
Inclination for determining whether or not the facing surface facing the package data formed in the buffer material data by removing the interfering portion has an inclination with respect to the thickness direction of the buffer material data. Judgment procedure;
The cushioning material design support program according to appendix 1, further comprising a first correction procedure for removing the inclination when the facing surface has the inclination.
(Appendix 3)
The buffer material design support program according to appendix 2, further comprising a second correction procedure for correcting the curve into a plurality of line segments in contact with the curve when the side of the facing surface in the buffer material data includes a curve.
(Appendix 4)
Based on the weight of the package and the strength of the buffer material, the number calculation procedure for calculating the number of the buffer material,
The cushioning material design support program according to any one of appendices 1 to 3, wherein the cushioning material data generation unit generates the number of the cushioning material data.
(Appendix 5)
A centroid position calculating procedure for calculating a centroid position of the packaged data;
The buffer material design according to appendix 4, further comprising an arrangement position determination procedure for determining an arrangement position of each of the buffer material data so that at least one of the buffer material data is arranged at the position of the center of gravity when the number is an odd number. Support program.
(Appendix 6)
In the arrangement position determination procedure, when the number is an even number, an interval between the buffer material data arranged at the position closest to the gravity center position and the gravity center position is the buffer material data and the other buffer material data. The cushioning material design support program according to supplementary note 5, wherein an arrangement position of each of the cushioning material data is determined so as to be smaller than the interval.
(Appendix 7)
A cushioning material that is three-dimensional CAD data of a plate-like or block-like cushioning material based on the relative positional relationship of the packaging data that is the three-dimensional CAD data of the packaged product with respect to the packaging box and the size information of the packaging box Buffer material data generating means for generating data;
Silhouette line deriving means for deriving a silhouette line of the packaged data in the storage direction with respect to the packing box based on the information indicating the positional relationship;
A shock absorber design support device comprising shock absorber data dividing means for dividing the shock absorber data in the storage direction based on the silhouette line.
(Appendix 8)
Interference part removing means for removing a part that interferes with the package data from the buffer material data;
Inclination for determining whether or not the facing surface facing the package data formed in the buffer material data by removing the interfering portion has an inclination with respect to the thickness direction of the buffer material data. A determination means;
The cushioning material design support apparatus according to appendix 7, further comprising: first correction means that removes the inclination when the facing surface has the inclination.
(Appendix 9)
The buffer material design support apparatus according to appendix 8, further comprising: a second correction unit that adjusts the curved line to a plurality of line segments in contact with the curved line when the side of the facing surface in the buffer material data includes a curved line.
(Appendix 10)
Based on the weight of the package and the strength of the buffer material, the number calculation means for calculating the number of the buffer material,
The shock-absorbing material design support device according to any one of appendices 7 to 9, wherein the shock-absorbing material data generation unit generates the number of the shock-absorbing material data.
(Appendix 11)
Centroid position calculating means for calculating the centroid position of the package data;
The cushioning material design according to appendix 10, further comprising an arrangement position determining unit that determines an arrangement position of each of the buffer material data so that at least one of the buffer material data is arranged at the center of gravity when the number is an odd number. Support device.
(Appendix 12)
The arrangement position determining means, when the number is an even number, an interval between the buffer material data and the gravity center position arranged at a position closest to the gravity center position is the buffer material data and the other buffer material data. The cushioning material design support apparatus according to supplementary note 11, wherein an arrangement position of each of the cushioning material data is determined so as to be smaller than an interval of.
(Appendix 13)
A buffer material design support method executed by a computer,
A cushioning material that is three-dimensional CAD data of a plate-like or block-like cushioning material based on the relative positional relationship of the packaging data that is the three-dimensional CAD data of the packaged product with respect to the packaging box and the size information of the packaging box Buffer material data generation procedure for generating data,
Based on the information indicating the positional relationship, a silhouette line derivation procedure for deriving a silhouette line of the package data in the storage direction with respect to the packaging box;
A cushioning material design support method comprising: a cushioning material data division procedure for dividing the cushioning material data in the storage direction based on the silhouette line.
(Appendix 14)
An interference part removal procedure for removing a part that interferes with the package data from the buffer material data;
Inclination for determining whether or not the facing surface facing the package data formed in the buffer material data by removing the interfering portion has an inclination with respect to the thickness direction of the buffer material data. Judgment procedure;
The cushioning material design support method according to appendix 13, further comprising: a first correction procedure for removing the inclination when the facing surface has the inclination.
(Appendix 15)
The cushioning material design support method according to supplementary note 14, further comprising a second correction procedure for correcting the curved line into a plurality of line segments in contact with the curved line when the side of the facing surface in the cushioning material data includes a curved line.
(Appendix 16)
Based on the weight of the package and the strength of the buffer material, the number calculation procedure for calculating the number of the buffer material,
The cushioning material design support method according to any one of appendices 13 to 15, wherein the cushioning material data generation unit generates the number of the cushioning material data.
(Appendix 17)
A centroid position calculating procedure for calculating a centroid position of the packaged data;
The cushioning material design according to supplementary note 16, further comprising an arrangement position determination procedure for determining an arrangement position of each of the buffer material data so that at least one of the buffer material data is arranged at the center of gravity when the number is an odd number. Support method.
(Appendix 18)
In the arrangement position determination procedure, when the number is an even number, an interval between the buffer material data arranged at the position closest to the gravity center position and the gravity center position is the buffer material data and the other buffer material data. 18. The cushioning material design support method according to supplementary note 17, wherein an arrangement position of each of the cushioning material data is determined so as to be smaller than an interval of.

It is a figure which shows the function structural example of the shock absorbing material design apparatus in embodiment of this invention. It is a figure which shows the hardware structural example of the shock absorbing material design apparatus in embodiment of this invention. It is a flowchart for demonstrating the process sequence by a buffer material design apparatus. It is a flowchart for demonstrating the process sequence by a buffer material design apparatus. It is a figure which shows the example of a display of a CAD screen. It is a figure which shows the example of a display of the CAD screen by which the package data is arrange | positioned. It is a figure which shows the example of a display of the CAD screen by which packing box data is arrange | positioned. It is a figure which shows the structural example of a packing box table. It is a figure which shows the structural example of a buffer material table. It is a figure which shows the example of the arrangement position of buffer material data in case the number of buffer materials is an odd number. It is a figure which shows the example of the arrangement position of buffer material data in case the number of buffer materials is an even number. It is a figure which shows the example of a display of the CAD screen which shows the arrangement | positioning position of buffer material data. It is a figure which shows the example of a display of the CAD screen by which buffer material data is arrange | positioned. It is a figure which shows the silhouette line in the packaged data of this Embodiment. It is a figure which shows the example from which the position of a silhouette line differs in right and left of a package. It is a figure which shows the silhouette line surface in this Embodiment. It is a figure showing the state where buffer material data was divided into two. It is a figure for demonstrating the effect by cut | disconnecting a shock absorbing material based on a silhouette line. It is a figure which shows the state in which the clearance gap was formed between the division surfaces which oppose. It is a figure which shows the structural example of a parameter table. It is a figure which shows the example of completed cushioning material data. It is a flowchart for demonstrating the process sequence for reducing the manufacturing cost of a shock absorbing material. It is a figure which shows the example in which an opposing surface has an inclination. It is a figure which shows the state by which the opposing surface was compensated. It is a figure for demonstrating the correction process of a cut line. It is a flowchart for demonstrating an example of the process sequence of the correction process of a cut line. It is an auxiliary figure for explaining the processing procedure of cut line correction processing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Buffer material design apparatus 11 CAD system part 12 Buffer material design part 50 Packing material data 60 Buffer material data 70 Packing box data 100 Drive apparatus 101 Recording medium 102 Auxiliary storage apparatus 103 Memory apparatus 104 CPU
105 Interface Device 106 Display Device 107 Input Device 121 Package Data Reading Unit 122 Packing Material Arrangement Unit 123 Packing Box Generation Unit 124 Buffer Material Arrangement Unit 125 Silhouette Line Deriving Unit 126 Die Cutting Processing Unit 127 Opposing Surface Adjustment Unit 128 Curved Part Adjustment Unit 131 Packing box size table 132 Buffer material table 133 Parameter table B Bus

Claims (5)

On the computer,
A cushioning material that is three-dimensional CAD data of a plate-like or block-like cushioning material based on the relative positional relationship of the packaging data that is the three-dimensional CAD data of the packaged product with respect to the packaging box and the size information of the packaging box Buffer material data generation procedure for generating data,
Based on the information indicating the positional relationship, a silhouette line derivation procedure for deriving a silhouette line of the package data in the storage direction with respect to the packaging box;
Wherein the plane formed by horizontally moving the silhouette line outside of the packed data with respect to a plane perpendicular to the storing direction, for executing the buffer material data division procedure wherein the cushioning material data split Buffer material design support program. An interference part removal procedure for removing a part that interferes with the package data from the buffer material data;
Inclination for determining whether or not the facing surface facing the package data formed in the buffer material data by removing the interfering portion has an inclination with respect to the thickness direction of the buffer material data. Judgment procedure;
The cushioning material design support program according to claim 1, further comprising a first correction procedure for removing the slope when the facing surface has the slope.   The buffer material design support program according to claim 2, further comprising a second correction procedure for correcting the curved line into a plurality of line segments in contact with the curved line when the side of the facing surface in the buffered material data includes a curved line. Based on the weight and strength of the cushioning material of the packaging material, and count calculating step of calculating the number of the buffer material,
A centroid position calculating procedure for calculating a centroid position of the packaged data;
When the number is an odd number, the arrangement position of each buffer material data is determined so that at least one of the buffer material data is arranged at the center of gravity position. When the number is an even number, the position is closest to the center of gravity position. Arrangement position determination for determining an arrangement position of each buffer material data so that an interval between the buffer material data arranged at a position and the gravity center position is smaller than an interval between the buffer material data and the other buffer material data. The buffer material design support program according to claim 1 , further comprising: a procedure . A cushioning material that is three-dimensional CAD data of a plate-like or block-like cushioning material based on the relative positional relationship of the packaging data that is the three-dimensional CAD data of the packaged product with respect to the packaging box and the size information of the packaging box Buffer material data generating means for generating data;
Silhouette line deriving means for deriving a silhouette line of the packaged data in the storage direction with respect to the packing box based on the information indicating the positional relationship;
Wherein the plane formed by horizontally moving the silhouette line outside of the packed data with respect to a plane perpendicular to the storing direction, cushioning material and a buffer material data dividing means for split the buffer material data Design support device.

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