JPH11291136A - Work line of steel frame for house building member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce sorting time and labor while holding high member taking efficiency by deciding production order by giving preference to member taking efficiency in a member taking plan. SOLUTION: H shape steel being a carried-in raw material is sent to a boring/cutting press device to be cut/worked in the standard length after boring a flange and web. The raw material after boring/cutting work is carried to automatic welding equipment to insert a connection member, and after being regularly welded after being temporarily welded by a positioned welding robot 2a, the raw material is sent to a sorter 3 to be sorted with every kind. When continuously producing a product having the same H shape steel size equivalent to a single residence, since production order is decided by giving precedence to member taking efficiency from the raw material, the length of producing products becomes random. When these are delivered, the products having the same length are integrated to be collectively delivered after inspecting the products. The boring/cutting press device, the automatic welding equipment and the sorter are controlled by a personal computer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line for processing steel beams for building materials used for housing beams, foundations and the like.

[0002]

2. Description of the Related Art FIG. 8 is a plan view showing a steel frame member.
BACKGROUND ART Steel beams for houses such as beams and bases are obtained by welding joint members serving as joining members to both ends of an H-shaped steel. The steel members of the beams and bases are produced in different lengths depending on the design of the house, and furthermore, the combination of length and number of each house varies. For the length, for example, 0.5m to 6m including members to be welded to both ends, 0.5m
Normally, it has 12 steps. In the production of beams and bases by houses, it is common to use a total of about 80 to 100 members of different lengths and types for each house.

FIG. 9 is a process diagram showing a conventional steel frame member manufacturing process. An H-shaped steel, which is carried in, is sent to a punching / cutting press device. The H-shaped steel is temporarily stopped at a predetermined position while being fed in the longitudinal direction by NC feeders disposed one by one on the side and on the delivery side, and holes are formed in the flange and the web, and cut into fixed lengths.

[0004] The drilled and cut material is conveyed to an automatic welding apparatus, where a connecting material is inserted, positioned, temporarily welded by a welding robot 2a or the like, and then finally welded, and then sent to a sorting apparatus 3. , Sorted by variety.

[0005] The member processing for each house includes (1) a step of removing and cutting a member from a long material, (2) a step of drilling a flange and a web, and (3) a step of inserting and positioning an end of an H-shaped steel. It is performed in the mouth member welding process, (4) sorting process for length and type, and for that purpose, a press device and a welding device are used. In the press device, the H-shaped steel is temporarily stopped at a predetermined position while being fed in the longitudinal direction by NC feeders arranged one by one on each of the entrance side and the exit side of the press, and drilling and cutting are performed by the press. In the welding device, the joint member is welded to both ends by an automatic welding device such as a welding robot while feeding the shaped steel.

[0006] In order to perform automatic machining using these devices, it is necessary to make a plan for removing parts from a material. Generally, long and short members are combined and cut out in order to prioritize the efficiency of removing members from a long material. The length and quantity of the members used differ from house to house, and therefore, the types of members to be produced and the order of the lengths vary, and members of the same length are also produced in pieces. On the other hand, at the time of shipment, members of the same length and type among members of one house are designed for workability during bundling and easy inspection.
Shipped collectively.

[0007]

For this reason, if priority is given to the efficiency of removing members from a long material, members of the same length are produced separately for convenience of member removal and then re-aggregated for the convenience of shipping work. This aggregation work requires a lot of time and effort.

On the other hand, if priority is given to the work efficiency of packing in shipping, the length of the end material is often increased because members of the same length and the same type are continuously cut from one material. Thus, there is a problem that the member removing efficiency is reduced.

Further, in order to perform automatic machining with a mechanical device, there are the following restrictions, for example.

(1) The member to be processed at the end of the material is longer than a predetermined length, for example, due to mechanical restrictions of the press device.
It is necessary to be at least 2.5 m.

(2) The remaining material obtained by cutting out several products from the material is longer than a predetermined length due to mechanical limitations of the press device.
For example, if it is not more than 2.5 m, it cannot be processed again.

(3) Of the remaining materials obtained by cutting the product from the raw material, those having a predetermined length or less, for example, 2.5 m or less,
The press cannot be processed into products due to mechanical limitations, resulting in waste material.

(4) In the press apparatus, the processing amount, that is, the processing time is almost proportional to the product length. On the other hand, since the welding device performs welding at both ends, the processing time is substantially constant regardless of the product length. For this reason, when continuously processing only long products, a high-capacity press device is required. On the other hand, when only short products are continuously processed, a high-performance welding device is required, or a large amount of buffer is required between the pressing device and the welding device.

The present invention provides a system for performing member sorting, drilling / cutting, welding, and sorting by type without manual operation, while reducing the efficiency of sorting without lowering the member cutting efficiency. .

[0015]

SUMMARY OF THE INVENTION A steel processing line for a housing building material according to the present invention comprises: a computer for preparing a material removal plan from an input long H-shaped steel material and instructing production of each device; Long H inserted according to production instructions
Drilling / cutting press device for drilling / cutting shaped steel material, and drilling / cutting according to the above computer production instructions
According to the sorting instruction of the computer, the cut product, the length of the product, a sorting line for sorting by product type, a processing line of a steel frame for housing building materials,
It is characterized in that the part removing plan determines the production order with priority given to the part removing efficiency.

[0016] Further, the drilled and cut H
A processing line provided with a welding device for welding a joint to a shaped steel material, characterized in that the production order is determined by giving priority to the production efficiency in the production plan.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a layout diagram of a steel member manufacturing line. An H-shaped steel, which is carried in, is sent to a punching / cutting press, where it is punched in a flange and a web, and is cut to a fixed size. It is cut. The drilled and cut material is conveyed to an automatic welding device, where a connection material is inserted, positioned, temporarily welded by a welding robot 2a or the like, and then subjected to final welding, and then sent to a sorting device 3 to be sorted by type. Sorted into.

FIG. 2 is an explanatory view of a product production method according to the present invention. When products of the same H-section steel size are continuously produced for one house, the production order is given priority to the efficiency of removing parts from raw materials. To determine, the length of the product produced will be random, as shown in FIG. When shipping these products, products of the same length are aggregated and collected as (Product 8), (Product 11, Product 3), (Product 7, Product 2, Product 10), and shipped together after inspection. I do.

FIG. 3 is a block diagram of the system of the present invention. The punching / cutting press device, the automatic welding device, and the sorting device include:
It is controlled by the management personal computer. It should be noted that the welding device is not required in a line for processing an object that does not need to be provided with a connection member.

Next, the computer control flow of the present invention will be described.

FIG. 4 is a computer control flow chart of the system of the present invention. In addition to the material length data to be carried into the management personal computer, the length, number, and type of house data are input, and a material removal plan is created. .

When a production start instruction is issued, the management personal computer creates drilling / cutting data, welding data, and sorting data of the product to be processed.

The management personal computer instructs the drilling / cutting press device to drill / cut the product 1, and the drilling / cutting press device performs the drilling / cutting according to the drilling / cutting data.
Execute the cutting process. When drilling and cutting are completed,
The management personal computer receives a signal of completion of drilling / cutting from the press device.

Next, the management personal computer instructs the press device to perforate and cut the product 2, and the press device similarly performs perforation and cutting. Hereinafter, similarly, drilling / cutting processing is sequentially performed on each of the products 3, 4,....

In the welding device, when the product 1 is carried in, welding is instructed based on the welding process data, a predetermined connection member is selected, and welding is performed. When the welding of the product 1 is completed, the management personal computer receives a signal indicating the end of the welding process from the welding device. Next, when the product 2 is carried in, the welding of the product 2 is instructed, and the welding device welds the product 2. Hereinafter, similarly, the products 3, 4,... Are sequentially welded.

When the welded product 1 is carried into the sorting device, the management personal computer instructs the sorting device to sort the product 1, and the sorting device transports the product 1 to a predetermined location according to the length and sorts the product. . When the sorting is completed, the management personal computer receives a signal indicating the end of the sorting.

Next, when the product 2 is carried in, the management personal computer instructs the sorting of the product 2 and the sorting device operates the product 2.
Sort. Hereinafter, in the same manner, products 3, 4
・ ・

FIG. 5 to FIG. 7 are flowcharts of the member removal according to the present invention, and the steps are as follows.

Numbers 1 to N are added to the products of one house in ascending order of the cut length (length excluding the connection material).

In step 1 (S1), it is determined whether or not the cut length of the product 1 (length excluding the connection material) is equal to or greater than the shortest length (Lmm). If the length is less than the shortest length (Lmm), molding cannot be performed due to the mechanical restrictions of the punching / cutting press apparatus, so the step 2 (in S2) flag is incremented by one. When the cut length of the product 1 is larger than the shortest length (Lmm), the process proceeds to Step 3 (S3).

In step 3 (S3), it is determined whether or not the cut length of the product 1 is longer than 1/2 of the material.

If the length is smaller than 1/2 of the material length, it is checked in step (7) that the same material as the other product is to be obtained from the same material.
Proceed to (S7).

For products whose material length is longer than 1/2,
Since two or more products cannot be obtained from the book material, the process proceeds to steps 4 and 5 (S4 and S5), and it is determined that the product 1 is to be removed from the first material.

In step 7 (S7), the product number is added to produce product 2. In step 8 (S8), it is determined whether the number of products has reached a predetermined number. If the number does not reach the predetermined number, step 1 (S1) Return to and repeat the above steps.

Step 8 (S8) for all products
After performing the processing up to step 9, steps 9 and 10 (S9, S1
Go to 0).

The flag k = N in step 9 (S9) is a special case where all products for one house are shorter than the shortest length (Lmm), and the description is omitted.

In step 10 (S10), it is determined whether or not there is a material for which it is determined that a product is to be obtained. Depending on the presence or absence, the process proceeds to the flow (2) and (3), respectively.

In the flow (2), for a material for which it is determined that one or more products are to be obtained, processing for removing parts of another product is further performed.

In step 21 (S21), it is determined whether or not the product whose material removal has not been determined is shorter than the remaining material length, and if not, the next undetermined product is determined in step 21 (S21). Is repeated.

If the length is shorter than the remaining material length, step 2
Proceeding to 2, 23 (S22, S23), the remaining material length after the product j is obtained from the material i is calculated, and it is temporarily determined that the product j is obtained from the material i.

If the remaining material length of the material i is shorter than the undetermined shortest product in step 24 (S24), the processing from step 21 (S21) is repeated for the next material.

The flow (3) is a process for determining a part removal by combining another undetermined product with respect to a product whose part removal is not determined. In step 31 (S31), the product determination flag is set to 0 ( The following processing is performed for those that have not been determined.

In step 32 (S32), it is determined whether the cut length of the product is L or less. If not less than L, the process proceeds to step 34 (S34), where it is determined that the product j is to be removed from the material i, the remaining material length is calculated in step 35 (S35), and the process is performed in step 36 (S36). A flag 1 is set to indicate that there is a material in the process of being removed. The process is repeated from step 31 (S31) for other undetermined products. At this time, if there is a material in the process of removing parts (in the case of the processing flag 1), the remaining material in the process of removing the material Products that can be cut from long
Forty (S37-40) are determined.

The processes of the flows (2) and (3) are repeatedly performed for all the products, and the parts removal of the products is determined. As a result, it is possible to create a plan for removing a member having a small length as waste material.

[0045]

As described above, according to the present invention, randomly produced members can be automatically sorted according to length and product type, with priority given to member sorting. Therefore, time and labor for sorting can be reduced while maintaining high member sorting efficiency. Can be reduced.

The efficiency of the sorting operation can be increased and labor can be saved without lowering the member removing efficiency. In addition, the member removing, drilling / cutting, welding, and sorting by type can be performed without manual operation.

[Brief description of the drawings]

FIG. 1 is a layout diagram of a production line for a steel frame member.

FIG. 2 is an explanatory diagram of a product production system according to the present invention.

FIG. 3 is a configuration diagram of a system of the present invention.

FIG. 4 is a computer control flow diagram of the system of the present invention.

FIG. 5 is a flowchart (1) of a member removal according to the present invention.

FIG. 6 is a flowchart (2) of the member removal according to the present invention.

FIG. 7 is a flowchart (3) of member removal according to the present invention.

FIG. 8 is a plan view showing a steel frame member.

FIG. 9 is a process diagram showing a conventional steel member manufacturing process.

[Explanation of symbols]

 1: Drilling / cutting press device 2: Automatic welding device 2a: Welding robot 3: Sorting device

Claims (2)

[Claims] 1. A computer for preparing a material removal plan from a supplied long H-shaped steel material and instructing production to each device, and a long H-beam inputted according to the production instruction of the computer.
Drilling / cutting press machine for drilling / cutting shaped steel material, and drilling / cutting according to the above computer production instructions
In accordance with the sorting instruction of the computer, the cut product is a length of the product, a processing line of a steel frame for a housing building material comprising a sorting device that sorts by type, and the member removing plan increases the member removing efficiency. A steel processing line for residential building materials, characterized in that the production order is determined with priority. 2. A computer for preparing a material removal plan from the input long H-shaped steel material and instructing production of each device, and a long H input according to the production instruction of the computer.
A drilling / cutting press device for drilling / cutting shaped steel material, a welding device for welding a connection material to the drilled / cutted H-shaped steel material in accordance with the production instructions of the computer, and a sorting device for the computer. A processing line for a house building material steel frame, comprising a sorting device for performing sorting according to product length and product type according to instructions, and a processing line for a house building material steel frame comprising a sorting device for performing product type sorting. A production line for a steel frame for a house building material, wherein the production order is determined by giving priority to the production efficiency in the production plan.