JP3441420B2 - Surface material allocation method and surface material allocation processing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention determines the number of raw materials of each size necessary for cutting a predetermined number of rectangular product members of a predetermined size from one or more kinds of rectangular raw materials of which the size is fixed. The face material allocating method that determines and appropriately allocates the product members to these raw materials, the face material allocating device that processes the raw material by this surface material allocating method, and the face material allocating process as described above is executed by the computer. The present invention relates to a computer-readable recording medium in which a program for causing the program is recorded.

[0002]

2. Description of the Related Art It is used in various fields to cut a required number of members (hereinafter referred to as product members) of a predetermined size from raw materials supplied in a predetermined size and assemble them to manufacture a finished product. For example, there are cases in which plywood materials, gypsum boards, etc. for constructing a house are cut into a predetermined size.

In the case of cutting out the material for constructing a wooden house as described above, there has been conventionally adopted a method of preparing a face material allocation specification and processing it according to the specification.
It is extremely difficult to rationally create the above-mentioned face material allocation specification when there are a plurality of sizes of raw materials, when there are many sizes of product members to be cut out, and the like. Further, if the surface material allocation specification is manually created, the yield may change depending on the skill level of the operator, and it is difficult to evaluate whether the allocation is performed optimally.

Under these circumstances, there has been proposed a device which uses a computer or the like to quickly and rationally cut out a predetermined product member from a raw material. In case of problems, for example,
There are those described in JP-A-7-156107 and JP-B-2-27922.

The device described in Japanese Patent Laid-Open No. 7-156107, when the specifications, quantities, and wood removal specifications of the components of the panel used in the building are input, creates a wood removal table from these information and uses this data. It aims to control the transfer, supply and processing of raw materials based on the above.

The device described in Japanese Patent Publication No. 2-27922 measures the size of the loaded wood, compares the obtained data with the product shape data stored in advance, and processes the product with the highest yield. It is controlled to select a product shape that can be processed and to perform the processing.

[0007]

However, when the raw material and the product member are face materials having a two-dimensional spread, a much more complicated logic is required as compared with the one-dimensional one as described above. Will be needed. Even if a computer is used, the software becomes extremely large and the calculation time becomes long, which is not rational.

The invention according to the present application has been made in view of the above circumstances, and an object thereof is to provide a product member having a predetermined size from a plurality of types of raw materials having a predetermined size. It is intended to provide a method and an apparatus for allocating product members to raw materials with a high yield by a simple calculation when cutting out a number of sheets.

[0009]

[Means for Solving the Problems] To solve the above problems
In the invention according to claim 1, one or a plurality of types of standard
From rectangular raw material of specified size to rectangular product part of specified size
The raw materials necessary to cut out a specified amount of material
Types of standard size and the number of them, and the product to the raw material
A method of determining the allocation of members, the method comprising:
Select the type and number of standard size of the
Set multiple combinations of raw materialsCombination setting processWhen,
Calculate the total area of raw materials (SG) for each combination
DoRaw material area calculation processAnd the product department you are trying to cut out
Calculate the total area of material (SS)Product area calculation processWhen,
  The total area of raw materials is larger than the total area of the product parts
This combination of squid or equal raw material combinations
Total area of raw materials and total area of product parts
Difference (ΔS = SG-SS)Area difference calculation process
And classify product parts with one side having the same length.
To set product groupProduct group setting processAnd these products
The product members included in the set are arranged in descending order of the length of the other side and checked.
Raw material with the largest area included in the combination of raw materials
The one with the longest side length used to classify the product group
, In descending orderAllocation processAnd the allocation process
This makes it impossible to assign product components to one raw material.
And the area SR of the waste material at that time, the raw material and the product section
Contrast the difference ΔS of the total area with the materialContrast processWhen,
In the above comparison, when ΔS <SR, the last allocation
The allocation of the product parts
Assign product parts smaller thanReallocation process
And,Even in the reallocation step,
Since it is impossible to assign product parts to raw materials,
In contrast, when ΔS ≧ SR, ΔS is (ΔS−
SR) and moved to the allocation to the next raw material,  
Even in the re-allocation process, product parts for the raw material concerned
Becomes impossible, and in the above comparison, ΔS <S
When R, for the combination of raw materials being allocated
Since the allocation of all product parts is impossible, the total area is larger.
For the combination of raw materials,
Perform the allocation process, comparison process, and reallocation process again.
Method of allocating face materialI will provide a.

In this face material allocating method, it is sequentially checked whether a predetermined number of product members having a predetermined size can be cut out from the set combination of raw materials. At this time, the total area SG of the raw materials included in the combination of the raw materials to be checked in advance and the total area S of the product members to be cut out
The difference ΔS from S is calculated. This total area difference ΔS
Indicates the amount to be discarded when all product parts can be assigned to this raw material, and the part that must be discarded in the process of sequentially assigning it, that is, the amount of waste material is Δ above.
If S is exceeded, it is possible to recognize that allocation is impossible even if the allocation is continued at that point. Therefore, it is possible to appropriately proceed to the next stage without performing unnecessary processes such as changing the allocation or changing the combination of raw materials.

Even when a product member is assigned to one raw material and the next product member is not assigned to the surplus material, and the area of the surplus material becomes larger than ΔS, the last assigned product member is replaced by By allocating a product member having a smaller size than this, it may be possible to allocate yet another product member. By checking this, it is possible to reduce the amount of waste material, and it is possible to reach an allocation with a good yield with a small number of calculations, and it is possible to allocate efficiently.

According to a second aspect of the present invention, the calculation means for performing the process according to the first aspect, the type and the number of raw materials determined by the calculation means, and allocation data indicating allocation of product members to these are displayed. The present invention provides a face material allocating device having a display device for performing the process, and a face material processing device for processing the raw material input according to the display of the display device based on the allocation data.

According to a third aspect of the present invention, in the face material allocating apparatus according to the second aspect, the arithmetic means creates an allocation processing section for performing an allocation operation and a face material allocation chart after the allocation is completed. It has a diagram creation unit and a processing data creation unit that creates processing data of raw materials based on the allocation data created by the allocation processing unit, and controls the face material processing means based on the processing data. It shall be equipped with a control device.

In the face material allocating apparatus as described above, the face material allocating method according to claim 1 is executed by the calculating means to quickly determine the face material allocation, and the raw materials are supplied based on this data. Then, it becomes possible to cut out and process the product member automatically and quickly.

The invention according to claim 4 provides a computer-readable recording medium in which a program for causing a computer to execute the allocation process according to claim 1 is recorded.

By operating the computer according to the program recorded on the recording medium, the steps described in claim 1 can be rapidly performed and rational allocation of the face material can be determined. Therefore, it becomes possible to quickly and stably cut out the face material with a good yield.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 are flow charts showing a face material allocating method which is an embodiment of the invention according to claim 1. Further, FIGS. 6 to 9 are views showing a concrete example to which the above-mentioned face material allocating method is applied,
It is the schematic which shows the process of face material allocation step by step. In this concrete example, the raw material is one type having vertical and horizontal sides of 10 × 10, and the product members to be cut out from this raw material are 6 sheets having 4 × 4 sides and 3 × 3. Eight pieces. The above numerical values indicate the length, but the unit is omitted.

The above-mentioned face material allocating method is executed in the following procedure. (Procedure 1) First, the total area (SS) of the product members to be cut out is calculated. In the above specific example, SS
= 4 × 4 × 6 + 3 × 3 × 8 = 168.

(Procedure 2) Next, a plurality of combinations of usable raw materials are set, and the total value of the areas of the raw materials included in each combination is calculated. These combinations are targets for checking whether or not product members can be allocated, and all combinations of types of raw materials due to differences in dimensions are considered. In the above specific example, the raw material is one type of 10 × 10, and each combination is SG1 (raw material 1) as shown in Table 1.
0x10 is 1 sheet, SG2 (raw material 10x10 is 2)
Sheet), SG3 (3 pieces of raw material 10 × 10).

[Table 1]

(Procedure 3) The above-mentioned product members are classified by those having the same short side length, and a product set is created. Then, this product group is arranged in descending order by the length of the short side used for classification, and a number is given to each. On the other hand, in each product group, they are arranged in descending order according to the length of the other side, that is, the long side not used in the classification. In the above specific example, the first product group is 4 × 4 ... 6 sheets, and the second product group is 3 × 3. Here, all the product members included in each product group have the same size, and it is not necessary to consider the order of the product members in the product group.

(Procedure 4) The total area S of the combination of raw materials
G is selected so that the total area of product members is SS or more, and the surface material allocation is checked. At this time, first, the total sum SG of the raw material areas is selected to be the minimum sum equal to or more than the total sum SS of the product member areas, and if the allocation cannot be performed, the one having the larger total area SG is sequentially selected. Therefore, it is possible to check whether the combination of raw materials can be selected and assigned.
At the time of the second time, the combination of the nth raw materials whose total area is SS or more is the target of the inspection. In the above specific example, SG1
Since <SS ≦ SG2, SG2 is the first object to be checked, and if allocation is impossible, SG3 and the following shown in Table 2 are sequentially checked.

(Procedure 5) The difference ΔS between the total area SG of the raw materials included in the combination of the raw materials to be checked and the total area of the product members is calculated. The calculation is as follows. ΔS = SG2-SS = 200-168 = 32

(Procedure 6) Of the product groups, the one having the maximum short side length used for classification is assigned. In the above specific example, the first product group (4 × 4, 6 sheets) is checked. (Product group number i = 1).

(Procedure 7) The following condition judgment is performed. a) Whether or not all products in the i-th product group have been assigned. b) Whether there are unused raw materials in the combination of raw materials to be checked. Then, according to these judgments, the following (1) (2) (3)
Proceed to either. (1) When all the product members in the i-th product group have been assigned → Proceed to the next condition determination. (2) When all the product members in the i-th product group have not been assigned, and there is no unused raw material or residual material in the combination of raw materials to be checked → For checking the next candidate raw material combination move on. (3) When all of the product members in the i-th product group have not been assigned and there is an unused raw material in the combination of raw materials to be checked → proceed to the next assignment process. At the time of allocating the face material, the product group has not been allocated yet, so (1) is selected and the process proceeds to step 8.

(Procedure 8) The raw material, the unused material or the residual material to be checked for the allocation of the face material is taken out, and is allocated to the largest unallocated product in the i-th product group to calculate the length of the surplus material. . At this time, the remaining material and the unused raw material are given priority to the remaining material and those having a large area are prioritized. In addition, the above "remaining materials",
The "remaining material" means the following as shown in FIG. Moreover, "unused material" is also defined as follows. (1) Surplus material is a material that occurs during the allocation of products from raw materials or residual materials in a combination of raw materials, etc., when the allocation of the relevant product group is completed and the next product group is checked. It becomes "remaining materials". (2) Remaining material is as described in (1). A material that exists when a new product group is assigned. (3) Unused material is a part having the same dimensions as the original plate except for the parts that have already been allocated from the original plate.

The procedure 8 is as follows in the above specific example. The raw material 10 × 10 (raw material) is taken out, and the first product member 4 × 4 is allocated as shown in FIG. Then, the surplus material length is calculated as follows. 10-4 = 6

(Procedure 9) It is determined whether or not an unallocated product member can be allocated to the surplus material portion.
In the above specific example, there are six extra material lengths as calculated in step 8, and as shown in FIG. 6B, the next product member 4 × 4 (2
It is possible to allocate the first sheet. Therefore, the process proceeds to YES.

(Procedure 10) Unallocated product members are allocated to the surplus material, and the surplus material length is calculated. In the above specific example, the product material 4 × 4 (second sheet) is allocated to the surplus material (remaining material length 6), and the surplus material length after allocation is as follows. 6-4 = 2 Return to procedure 9 after the above calculation.

(Procedure 9) The product member is again allocated to the extra material portion. However, if the product member cannot be allocated, the process proceeds to NO and the procedure 11 is performed next. In the above specific example, the product material 4 × is used as the extra material (extra material length 2).
4 (third sheet) is to be allocated, but allocation is impossible, and the process proceeds to NO.

(Procedure 11) Here, it is determined whether the surplus material portion is the remaining material or the waste material. That is, in step 9, in the process of sequentially allocating the i-th product member, it was impossible to allocate to the surplus material, but it is checked whether or not an unallocated product member smaller than this is allocable, and if allocation is possible, it remains. It is a material. When there is no product member that can be assigned to the surplus material, the surplus material is discarded. In addition, it is also determined whether or not the unused material is also scrapped. In the above specific example, the size of the surplus material is 4 × 2, and it cannot be allocated to the second product group that has not been allocated yet. Therefore, FIG.
As shown in (b), the surplus material is a waste material. On the other hand, the size of the unused portion is 6 × 10, and the product members can be allocated, so it is not discarded.

(Procedure 12) Since there was a waste material in the procedure 11, the difference ΔS in the total area between the raw material and the product member is updated as follows. ΔS ← ΔS− (waste material area) This is based on the fact that the area that can be made into waste material has decreased in the subsequent allocating step because something to be made into waste material has occurred. In other words, if a surplus material larger than ΔS after updating becomes a waste material in the subsequent allocation step, it becomes clear that allocation of the raw material combination being allocated is impossible. In the above specific example, since the size of the waste material is 2 × 4,
ΔS is as follows. ΔS ← ΔS− (waste material area) = 32-2 × 4 = 24

(Procedure 13) For ΔS updated in the above procedure, it is determined whether or not ΔS <0 holds. ΔS <0
If is satisfied, it is clear that the allocation is impossible even if the allocation process is continued as it is, and the procedure for changing the allocation already performed will be started. On the other hand, when ΔS <0 is not established, the allocation process is continued. In the above specific example, ΔS = 24> 0, and thus the process proceeds to NO.

(Procedure 15) In continuing the allocation process, it is determined whether or not the allocation of the i-th product group has been completed. If all the product members included in the i-th product group are assigned (YES), the process proceeds to the next product member. On the other hand, if there is an unallocated product member included in the i-th product group, the process proceeds to NO and the allocation process is continued. In the case of the above specific example, only two sheets of the first product group have been allocated, and the process directly proceeds to NO and the allocation process is continued.

(Procedure 8) In this procedure, the allocation process is repeated, and in the above specific example, the third product member 4 × 4 included in the first product group is replaced with the product member 4 × 4 shown in FIG.
Assign to virgin material as shown. Then, the surplus material length is calculated. The surplus material length is as follows. 10-4 = 6

(Procedure 9) It is determined whether or not a fourth product member 4 × 4 can be assigned to the above-mentioned surplus material. Since this allocation is possible, the process proceeds to YES and the procedure 10 is performed.

(Procedure 10) As shown in FIG. 6D, a fourth product member 4 × 4 is allocated.

(Procedure 9) Furthermore, the product material 4 × 4 is used as the surplus material.
It is determined whether the fifth sheet can be allocated. Since this allocation is impossible, the process proceeds to NO and moves to step 11.

(Procedure 11) In this procedure 11, it is determined whether or not the surplus material and the unused material are discarded, and in the above specific example, the surplus material 4 × 2 and the unused material 2 × 10 are selected. Cannot be assigned other product members, and is determined to be waste material.

(Procedure 12) In the above specific example, when both the surplus material 4 × 2 and the unused material 2 × 10 become waste materials, ΔS is updated as follows. ΔS ← ΔS− (waste material area) = 24-2 × 4-2 × 10 =
-4

(Procedure 13) Here, for ΔS, it is determined that ΔS <0 is established, so the routine proceeds to YES, and procedure 14 is performed.

(Procedure 14) Since it is clear that the allocation process is impossible even if the allocation process up to now is continued as it is, the allocation process up to now is partially modified. It is the one to cancel the allocation of the product parts. Along with this, ΔS is also returned to the value before allocation. In the above specific example, as shown in FIG.
The allocation of the fourth sheet of No. 4 is canceled. And Δ
S is returned to the value ΔS = 24 before allocation of the fourth sheet.

(Procedure 15) In the above specific example, after the allocation of the fourth product member 4 × 4 allocated last is canceled, the allocation is further continued, but the allocation of the first product group is completed. Since there is no such information, the procedure directly returns to step 8.

(Procedure 8) Allocation to new raw materials is continued. Allocation of the raw materials can be performed in the same manner as the raw material described above, and as shown in FIG. 7A, the fourth product member 4 × 4 is allocated to the raw material. The extra length is
10-4 = 6.

(Procedure 9) 5 × 4 × 4 product members are added to the above surplus material.
Allocation of the first sheet is possible.

(Procedure 10) As shown in FIG. 7B, a fifth product member 4 × 4 is allocated. Extra material length is 6-4
= 2.

(Procedure 9) The following product member 4 is added to this surplus material.
It is not possible to assign the 6th sheet of × 4. Therefore, the procedure proceeds to step 11.

(Procedure 11) No other product member can be assigned to the above-mentioned surplus material and it is a waste material.

(Procedure 12) ΔS is updated due to the generation of the waste material, and ΔS ← 24-2 × 4 = 16.

(Procedure 13) Whether or not ΔS <0 is established is determined. Since ΔS> 0, the procedure proceeds to step 15.

(Procedure 15) Since the allocation for the first product group has not been completed yet, the procedure returns to Procedure 8.

(Procedure 8) The sixth product member 4 × 4 is allocated to an unused portion as shown in FIG. 7C, and the surplus material is calculated as follows. 10-4 = 6

(Procedure 9) Since the allocation of the first product group has been completed by the allocation of the sixth sheet, note 2 in Procedure 9.
Proceed to NO as indicated by.

(Procedure 11) Whether or not there is a waste material is determined. At this time, as shown in FIG. 7 (c), the surplus material after being allocated by the sixth product member 4 × 4 can be allocated to the second product group and does not become a waste material and remains. It becomes a material.
Then, only the 2 × 4 portion shown in FIG. 7C is the waste material.

(Procedure 12) With the generation of the waste material,
Next, ΔS is updated. ΔS ← ΔS− (waste material area) = 16-2 × 4 = 8

(Procedure 13) It is determined whether or not ΔS <0 is established. ΔS <0 is not established, and the procedure proceeds to step 15.

(Procedure 15) Since the allocation of the first product group has been completed, the process proceeds to YES to reach step 7.

(Procedure 7) Here, since the allocation of the first product group has been completed, (1) is selected in the condition determination, and the procedure proceeds to (Procedure) 16.

(Procedure 16) This procedure is to determine whether or not the allocation of all product groups has been completed.
When the allocation for all product groups has been completed, the allocation process is terminated, and if there are unallocated product groups, the process proceeds to the step for allocating these product groups. In the above specific example, the allocation of the first product group has been completed, but the allocation of the second product group has not yet been carried out. Therefore, the process proceeds to NO and step 17 is carried out.

(Procedure 17) Procedure 17 is to register the residual material generated in the allocation step previously performed. In addition, this residual material can be used for allocating the product members included in the product group performed thereafter. In the above specific example, in the allocation process of the first product group, one raw material and one residual material 6 × 6 are generated from each raw material, and these are registered.

(Procedure 18) Then, the process proceeds to the allocation process of the next product group, that is, i is replaced by (i + 1) and the process proceeds to procedure 7.

(Procedure 7) In procedure 7, since i has been updated, procedure (3) is selected in the condition determination and procedure 8 is performed. After that, the second product group is allocated in the same process as the process of allocating the first product group. That is, the steps are as follows.

(Procedure 8) Allocation is checked. At this time, the check is performed by giving priority to the remaining material over the unused raw material. In the above specific example, as shown in FIG. 8A, the product member 3 × 3 (first sheet) of the second product group is allocated to the residual material 6 × 6 generated from the raw material. The surplus material length after allocation is
6-3 = 3.

(Procedure 9) A second product member 3 × 3 can be assigned to the surplus material, and the process proceeds to YES.

(Procedure 10) As shown in FIG. 8B, the second product member 3 × 3 is allocated and the surplus material length is calculated. The extra material length is 3-3 = 0.

(Procedure 9) The surplus material length is 0, and the product member 3
The third sheet of × 3 cannot be assigned. Therefore, NO
Proceed to.

(Procedure 11) Since the surplus material length is 0, there is no waste material. Therefore, in step 12, the value of ΔS is maintained as it is, and the process proceeds to step 15.

(Procedure 15) Since the allocation of the second product group has not been completed, the process proceeds to NO.

(Procedure 8) The third product member 3 × 3 can be assigned to an unused portion. Therefore, as shown in FIG. 8C, the third product member 3 × 3 is allocated. Then, the surplus material length is calculated. The extra material length is 6-3 = 3.

(Procedure 9) Product member 3 × 3, 4
The first sheet can be assigned. Therefore, the process proceeds to YES.

(Procedure 10) As shown in FIG. 8D, the 4th product member 3 × 3 is allocated and the surplus material length is calculated. The extra material length is 3-3 = 0.

(Procedure 9) 5 × 3 × 3 product members are added to the above surplus material.
The first sheet cannot be assigned. Therefore, the process proceeds to NO.

(Procedure 11) The surplus material length after the previous allocation is 0, and there is no waste material. Therefore, the procedure proceeds to the procedure 15 through the procedure 12.

(Procedure 15) Since the allocation of the second product member has not been completed, the process proceeds to NO.

(Procedure 8) When the residual material 6 × 6 of the raw material is taken out, the fifth product member 3 × 3 can be assigned thereto. Therefore, as shown in FIG.
The 5th sheet of × 3 is assigned to the remaining 6 × 6 of the raw material. Then, the surplus material length is calculated. The extra material length is 6-3 = 3.

(Procedure 9) Product member 3 × 3 6 is added to the above-mentioned extra material.
The first sheet can be assigned. Therefore, the process proceeds to YES.

(Procedure 10) As shown in FIG. 9B, the sixth product member 3 × 3 is allocated and the surplus material length is calculated. The extra material length is 3-3 = 0.

(Procedure 9) 7 × product member 3 × 3 is added to the above-mentioned extra material.
The first sheet cannot be assigned. Therefore, the process proceeds to NO.

(Procedure 11) The surplus material length after the previous allocation is 0, and there is no waste material. Therefore, the procedure proceeds to the procedure 15 through the procedure 12.

(Procedure 15) Since the allocation of the second product member has not been completed, the process proceeds to NO.

(Procedure 8) The seventh product member 3 × 3 can be allocated to an unused portion. Therefore, as shown in FIG. 9C, the seventh product member 3 × 3 is allocated. Then, the surplus material length is calculated. The extra material length is 6-3 = 3.

(Procedure 9) Product member 3 × 3 8
The first sheet can be assigned. Therefore, the process proceeds to YES.

(Procedure 10) As shown in FIG. 9D, the 8th sheet of the product member 3 × 3 is allocated and the surplus material length is calculated. The extra material length is 3-3 = 0.

(Procedure 9) Since the allocation of product members is completed,
Proceed to NO.

(Procedure 11) Since there is no waste material,
Proceed to step 15.

(Procedure 15) Since the allocation of the second product group is completed, the process proceeds to YES.

(Procedure 7) Allocation of the second product group is completed, and the process proceeds to (1).

(Procedure 16) Since the allocation has been completed for all product groups, the allocation process is terminated.

As described above, according to this face material allocating method, the sequential operation is performed by a simple logic,
Reasonable allocation of face materials is possible.

Next, a face material allocating apparatus for executing the face material allocating method will be described. FIG. 11 is an embodiment of the invention according to claim 2 or claim 3 and is a schematic configuration diagram of a face material allocating apparatus for executing the above-mentioned face material allocating method. Further, FIG. 12 is a block diagram showing the configuration of the same face material allocating and processing apparatus. This surface material allocating device is an input device 1 for inputting necessary data about product members and the like, and an operation for performing necessary calculations including surface material allocating processing based on the data input from the input device 1. A device 2, a printer 3 for outputting a calculation result by the calculation device 2, a processing device 4 for processing a raw material based on the calculation result, and a control for controlling the operation of the processing device 4 based on the calculation result. And a device 5. Further, a display 6 for displaying the above calculation result is provided if necessary.

The processing device 4 cuts the supplied face material (wood system, gypsum system, ceramic industry, petroleum system, etc.) based on the above calculation result, and the processing table of the raw material. 41, a circular saw 42 that cuts the input raw material, a horizontal axis running guide 42 that runs the circular saw in the horizontal axis direction for positioning, and a vertical axis run that positions the circular saw in the vertical axis direction. And a guide 43. Note that a router may be arranged when the product member needs to be machined such as drilling or notching. Also, although not shown,
It also has a dust collection facility, etc. according to the material of the face material.

The input device 1 is capable of inputting data relating to product members such as specifications of panels used in wooden buildings, and a keyboard can be used, for example. Further, the arithmetic unit 2 creates a processing data generation processing unit 21 for creating or extracting data necessary for laying out the face material from the input data relating to the product member, performs a laying-out process for the face material based on the created machining data, Face material allocation processing device 2 that creates a material allocation table and face material processing data
2. It functions as a data conversion device 23 that converts the surface material processing data obtained by the surface material allocation processing into the control data of the processing device. And the above-mentioned face material allocation processing device 2
2 executes the face material allocation method described above.

The above-described face material allocating / processing apparatus performs processing in the steps as shown in FIG. 13 with the configuration described above. First, when panel design specifications are input from the input device 1 (ST1), the product member processing data generation device 21 generates processing data of the product member (ST2).
Then, the face material allocation process is performed using the generated processing data (ST3). This face material allocation process is shown in Fig. 1.
4 to FIG. 4 are performed. Face material allocation chart (ST4) based on the result of this surface material allocation process
And surface material processing NC data (ST5) are generated. This face material processing NC data is converted into control data for controlling the processing device in the data conversion device 23 (ST
6) is input to the control device (ST8).

Then, based on the face material allocation chart, when the raw material is fed (ST7), the circular saw operates according to a signal from the control device to cut the fed raw material into a predetermined shape and size ( ST9). Further, processing such as drilling and notching is performed as necessary. After the processing is completed, the product member and the waste material are taken out by the worker. It should be noted that the input of raw materials and the removal of product members / waste materials can be automatically performed by a machine.

[0094]

As described above, in the face material allocating method according to the present invention, the allocation is attempted while the area of the portion to be the waste material is calculated and appropriate changes are made, so that the predetermined product members are allocated. The possible combinations of raw materials can be easily and quickly found, and the allocation of face materials can be reasonably determined. Further, with the face material allocating apparatus according to the present invention, it is possible to quickly perform rational member allocation and continuously process raw materials.
Further, by using the computer-readable recording medium according to the present invention, it is possible to easily and quickly determine a rational surface material allocation by a computer.

[Brief description of drawings]

FIG. 1 is a flowchart showing a face material allocating method according to an embodiment of the invention described in claim 1.

FIG. 2 is a flow chart showing a face material allocating method which is an embodiment of the invention described in claim 1.

FIG. 3 is a flow chart showing a face material allocating method which is an embodiment of the invention described in claim 1.

FIG. 4 is a flowchart showing a face material allocating method which is an embodiment of the invention described in claim 1.

FIG. 5 is a chart showing the annotations in FIGS. 1 and 2.

FIG. 6 is a schematic view showing a specific example of a face material to be assigned by the face material assignment method shown in FIGS. 1 to 4 in the step of assignment.

FIG. 7 is a schematic view showing a specific example of a face material to be assigned by the face material assignment method shown in FIGS. 1 to 4 in the step of assignment.

FIG. 8 is a schematic view showing a specific example of a face material to be allocated by the face material allocation method shown in FIGS. 1 to 4 in the order of allocation.

FIG. 9 is a schematic view showing a specific example of a face material to be assigned by the face material assignment method shown in FIGS. 1 to 4 in the step of assignment.

FIG. 10 is a schematic view showing a surplus material, a residual material and an unused material in the face material allocating method shown in FIGS. 1 to 4.

FIG. 11 is a schematic configuration diagram of a face material allocating apparatus which is an embodiment of the invention described in claim 2.

FIG. 12 is a block diagram showing a configuration of a face material allocating device shown in FIG. 11.

FIG. 13 is a flowchart showing the operation of the face material allocating device shown in FIG. 11.

[Explanation of symbols]

1 input device 2 arithmetic unit 3 printers 4 processing equipment 5 control device 6 display 21 Processing data generation processing device 22 Face material allocating device 23 Data converter 41 processing table 42 Horizontal axis travel guide 43 Vertical axis travel guide 44 circular saw

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-11-39358 (JP, A) JP-A-7-112336 (JP, A) JP-A-3-62171 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) G05B 19/18-19/46 G06F 17/50 B27L 5/00-5/08

Claims (4)

(57) [Claims] 1. A type of standard size and the number of standard sizes of the raw material necessary for cutting out a predetermined number of rectangular product members of a predetermined size from one or a plurality of types of rectangular raw materials of a standard size. A method for determining the allocation of the product member to the raw material, wherein the type and the number of standard dimensions of the raw material are selected, and a combination setting for setting a plurality of raw material combinations to be subjected to layout verification is set.
Process , raw material area calculation process for calculating the total area of raw materials (SG) for each combination, product area calculation process for calculating the total area of product parts to be cut out (SS), and total of the product parts An area difference calculating step of calculating a difference (ΔS = SG-SS) between the total area of the raw materials included in the combination and the total area of the product members for the combination of the raw materials in which the total area of the raw materials is greater than or equal to the area The product group setting process of classifying the product members into ones with one side having the same length and setting the product group , and arranging and checking the product members included in these product groups in descending order of the length of the other side. the area largest raw material contained in the combination of raw materials, those lengths of sides used in the product set of classification is maximum, the allocation process of allocating the descending order, in該割with step, one of the raw materials When allocation of products member becomes impossible, pairs of contrast and area SR of waste at that time, and a difference ΔS of the total area of the raw materials and products member
A ratio step, and a re-allocation step of allocating a product member that has been allocated last and allocating a product member smaller than the product member whose allocation has been stopped when ΔS <SR in the comparison. Even in the re-allocation process, product parts for the raw material
Becomes impossible, and in the above comparison, ΔS ≧ S
When R, replace ΔS with (ΔS-SR) and
After shifting to allocation to raw materials , even in the re-allocation process, product parts for the relevant raw materials
Becomes impossible, and in the above comparison, ΔS <S
When R, for the combination of raw materials being allocated
Since the allocation of all product parts is impossible, the total area is larger.
For the combination of raw materials,
Perform the allocation process, comparison process, and reallocation process again.
A method for allocating face material. 2. Calculation means for performing the process according to claim 1, and display means for displaying allocation data indicating the type and number of raw materials determined by the calculation means and allocation of product members to them. A face material allocating device, comprising: a face material processing device for processing the raw material input according to the display of the display device based on the allocation data. 3. The calculation means, an allocation processing section for performing an allocation operation, a diagram creation section for creating a face material allocation diagram after the allocation is completed, and a layout data of the raw materials based on the allocation data created by the allocation processing section. The surface material allocating apparatus according to claim 2, further comprising: a processing data creating unit that creates processing data, and a control device that controls the surface material processing unit based on the processing data. 4. A computer-readable recording medium recording a program for causing a computer to execute the allocation process according to claim 1.