JPH0135780Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention is used to cut small pieces (generally referred to as small pieces) into pieces on land and collect flat plates when the hull is scrapped. This relates to the longitudinal cutting device used.

<Conventional technology> When a ship's hull is scrapped, it is dismantled and made into metal materials (bars, plates, shaped steel), and the scraps are used to sell them as products.

Therefore, the method of dismantling a ship's hull is to gas-cut the horizontal part of the ship's surface floating on the sea into large chunks (generally referred to as large chunks), and then lift these chunks using a marine crane or an overhanging crane on land. This is lined up on land and gas-cut into small pieces (generally called small pieces), and among the small pieces, a rectangular or T-shaped cross section having the required thickness and height in the longitudinal direction of the base material (outer plate) is formed. A plate material with welded longitudinal sections having a cross section is gas-cut into required sizes, and the welded flesh portions at both ends of the longitudinal sections B are placed side by side at a required interval on the base material (outer panel) A as shown in Fig. 6. The tip of the crater D was held almost parallel to C, and plates were produced and collected by gas cutting.

Therefore, the operating speed during gas cutting is slow, the amount of gas required for cutting per hour and labor costs are high, and slag is generated due to gas cutting, and the total iron weight during dismantling is greatly reduced by slag. When removing the longitudinal and reusing the base material (outer panel), uniform and flat weld cutting is not possible, so leave an uneven weld thickness on the top surface of the base material and smooth it in the subsequent process or re-cut the glass to make it smooth. The disadvantage was that additional work was required.

<Problems to be solved by the invention> Conventional techniques require high amounts of gas and labor costs for gas cutting of longitudinals, and have the disadvantage of not being able to perform flat cutting. The purpose is to improve work efficiency and provide uniform and high-quality plates at low cost by pressing and cutting and scraping the welded parts of plates that are slid horizontally and welded to longitudinals.

<Means for solving the problem> A cutting device with a sear angle of about 5° is placed facing each other, a bed equipped with a device that can be raised and lowered is installed on the bottom of the cutting device, and a plurality of cutting devices are mounted on the bed. Placing a plate material having a longitudinal axis and raising the bed, pressing and clamping both ends of the plate material between the lower surface of the cutter and the upper surface of the bed,
The cutter is horizontally slid onto the plate while extending the shaft rod connected to the cutter, and the welded flesh portion of the longitudinal is pressed, cut, and scraped off.

<Function> A plate material to which a plurality of longitudinal strips 13a and 13b, which have been cut into required sizes and are welded, is placed on the bed, the bed is raised, and the plate material is pressed and clamped between the lower surface of the cutter and the upper surface of the bed, In order to alternately extend the shaft rods connected to the cutter, the cutter with a sear angle of about 5 degrees slides horizontally on the board and cuts multiple longitudinal rods.
3a and 13b are pressed, and the longes 13a and 13b are pressed and cut while curving their tips in a slightly arc shape from the outside to the inside, and since the lower surface of the cutter slides horizontally on the plate material, it cuts the welded flesh on the upper surface of the plate material. The board is shaped into a flat shape in order to cut it smoothly and press and hold it between the bottom surface of the cutter and the top surface of the bed.

Furthermore, since multiple longitudinal cuts can be made while operating the cylinders alternately, work efficiency can be significantly improved.

<Example> An example of the implementation of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the longitudinal cutting device of the present invention, and FIG. 2 is an explanatory diagram showing the state of transporting the longitudinal.

As shown in FIG. 1, cylinder support stands 3, 3 holding and fixing a hydraulic cylinder 4 are erected on a pedestal 2 placed and fixed on both ends of a base plate 1, and the cylinder support stands 3, 3 are mounted on a pedestal 5. A horizontal cutting device 7 is formed by connecting the rear part of the cutter 6 to the tip of the shaft rod 4a of the hydraulic cylinder 4, and a hydraulic jack 8, 8 are arranged in parallel, and a flat plate material mounting table 9 is placed on the upper surface of the hydraulic jacks 8, 8.
is fixed to form a bed 10 which can be raised and lowered, and the horizontal cutting device 7 and the bed 10 which can be raised and lowered are combined to constitute a longitudinal cutting device.

To explain the use and operation of the longitudinals of the present invention, as shown in FIG. Transport truck 11
On the bed 10 that can be raised and lowered at the same height as the
The plate material 12 is fed and placed as shown by arrow P.

Next, the hydraulic jacks 8, 8 are raised and the plurality of longitudinals 1 are cut on the upper surface of the plate material mounting table 9 and the lower surface of the cutters 6, 6.
Both ends of the plate material 12 to which 3 is welded are pressed and clamped.

Next, as shown in FIG. 3, the cutter 6 has a rectangular cutting blade 6b fixed to the lower end of a horizontal end of a pedestal 6a having an L-shaped cross section, and a rectangular corner on the inner edge of the pedestal 6a. A plurality (4) of □-shaped ribs 6c with one end removed are fixed and reinforced to form a cutter 6 with a front width of 5 and a rear width of 3 and a shear angle of 5 degrees.

As shown in FIG. 4, both ends of the plate 12 to which the longitudinals 13a and 13b are fixed are held between the upper surface of the plate mounting table 9 and the lower surface of the cutter 6 as shown by arrow U, and the shafts are fastened to the rear parts of the cutters 6 and 6. Rods 4a, 4a
are operated alternately at a cylinder pressure of approximately 140Kg/cm ² .

As shown in FIGS. 4 and 5, the cutters 6, 6 slide horizontally on the upper surface of the plate material 12 and press the ends of the longitudinals 13a, 13b on the plate material 12 inward to cut the welded flesh portion 13c and cut. The blade 6b is the welded part 1
Remove 3c.

<Effects of the Invention> Since the cutting blade on the bottom surface of the cutter slides horizontally on the board material, it smoothly scrapes the welded part on the top surface of the board material, and is pressed and clamped by the bottom surface of the cutter and the top surface of the bed, so that the board material It is shaped into a flat plate, and it is possible to make multiple (double) longitudinal cuts by alternately operating the shaft rod, which significantly improves work efficiency and provides flat plates of uniform quality at low cost.

[Brief explanation of drawings]

FIG. 1 is a front view showing the longitudinal cutting device of the present invention. FIG. 2 is an explanatory diagram showing the conveyance state of a plate material having a longitudinal part. FIG. 3 is a partial vertical cross-sectional view showing a cutter for cutting board material. FIG. 4 is an explanatory diagram of the cutter placed on the plate material. FIG. 5 is an explanatory diagram showing a state in which the longitudinal is cut. FIG. 6 is an explanatory diagram showing the cutting state of a conventional longitudinal. DESCRIPTION OF SYMBOLS 1... Base plate, 2... Pedestal, 3... Cylinder support stand, 4... Cylinder, 4a... Shaft rod, 5... Frame, 6... Cutting device, 7... Horizontal cutting device, 8...
Hydraulic jack, 9...Plate material mounting stand, 10...Bed, 11...Transportation cart, 12...Plate material, 13...
Longi, 13a...Left longi, 13b...Right longi.

Claims (1)

[Scope of utility model registration request] A pedestal is placed on the left and right sides of the base plate, and a cylinder support stand for fixing and holding the cylinder is fixed to the pedestal, and the cylinder support stand is connected horizontally by a mount, and a cutter is attached to the tip of the shaft rod of the cylinder. In a horizontal cutting device with a fixed horizontal cutter, cutters with a shear angle of about 5° are placed opposite each other, a bed equipped with a device that can be raised and lowered is installed on the bottom of the cutter, and a plurality of longitudinals are placed on the bed. Place the board with the cutter on it, raise the bed, press and hold both ends of the board with the lower surface of the cutter and the upper surface of the bed, and slide the cutter horizontally over the board while alternately extending the shaft rods connected to the cutter. A longitudinal cutting device characterized in that the longitudinal cutting device presses, cuts and scrapes the welded flesh portion of the longitudinal by moving.