JPS6032932Y2 - Bar cutting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bar cutting device for cutting a long bar-shaped metal material (hereinafter referred to as a bar).

Conventionally, when cutting a long bar into a predetermined length by placing the bar on a surface plate, the bar often sways just before the cutting is completed, causing scratches on the cut surface. The problem was that it interfered with the next process.

This is due to the fact that long bars inevitably have their own unique warpage.

This invention was made in view of the above circumstances, and its purpose is to provide a bar cutting device that can easily cut a bar and obtain a uniform cut surface without scratches. , a movable running trolley is attached to the ceiling running rail, a pair of lifting devices each having a magnet attachment end at the tip are attached to both ends of the lower part of this running trolley, and a bar is suspended and fixed by these magnet attachment ends. Then, the cutting burner is swingably provided at the center of the lower part of the traveling carriage.

This invention will be explained below with reference to the drawings.

1 and 2 show a first embodiment of a bar cutting device according to this invention.

In the figure, reference numeral 1 is a traveling truck.

Wheels 2... are attached to both sides of this running bogie 1, and the running bogie 1 is attached to an overhead running rail 4 fixed on an overhead running rail 3 via these wheels 2... It is suspended so that it can be moved freely.

Lifting sliders 5 and 6 are suspended and fixed at both ends of the lower part of the traveling truck 1 along the ceiling traveling rail 4.

These elevating sliders 5 and 6 are fixed parts 5a and 6a, respectively.
and moving parts 5b and 6b.

The above-mentioned elevating sliders 5, 6 have these elevating sliders 5, 6
A drive cylinder 7.8 is mounted for driving the.

These drive cylinders 7.8 are hydraulically or pneumatically operated and have fixed parts 7a, δa and moving parts 7b, respectively.

8b, and these fixed parts? a.

8a are fixed parts 5a of the elevating sliders 5 and 6, respectively;
6a, and the moving parts 7b and 8b are connected to the moving parts 5b and 6b of the elevating sliders 5 and 6, respectively.

In the above structure, the elevating sliders 5 and 6 and the drive cylinder 7
．． Reference numeral 8 constitutes lifting devices 9 and 10.

Magnet attachment ends 11 and 12 are attached to the lower ends of the moving parts 5b and 6b of the elevating sliders 5 and 6, respectively.

These magnet attachment ends 11 and 12 are respectively attached to the fixed part 1.
3.14 Moving part 15 consisting of an electromagnetic magnet. 15
．． 16.16.

Slide grooves 13a and 14a that open downward are formed in the lower part of the fixing part 13.14.

These slide grooves 13a and 14a are formed to extend in a direction perpendicular to the longitudinal direction of the traveling vehicle 1 and to widen upward.

Said moving part 15. 15. 16. Reference numeral 16 is formed in a trapezoidal shape, and slide protrusions 15a, 115a, 16a, 16a are formed at the upper ends of these moving parts 15, 15.degree.

These slide protrusions 15a, 115a, 16a, 16a
Is the above slide R13a? 14a, so that it can easily slide without falling off, and has a shape that widens upward.

Attachment of the movable parts 15 and 15 formed in the trapezoid shape to the fixed part 13 and the fixed part 14 of the movable parts 16 and 16
When mounting to the carriage 1, the moving parts 15 and 16 face each other along the direction orthogonal to the longitudinal direction of the traveling carriage 1, and the distance between the moving parts 15 and 15 and the moving parts 16 and 16 are adjusted. The distance between the two ends increases downward.

Each moving part 15.15 and fixed part 13 are fixed by screws 17, and similarly each moving part 16.16 and fixed part 14 are fixed by screws 18.

As mentioned above, the magnet attachment ends 11 and 12 are formed on the moving parts 15 and 16 made of electromagnetic magnets.
9 can be easily attached regardless of the size of the mold.

An L-shaped support part 20 is fixed to the lower part of the traveling carriage 1 between the lifting devices 9 and 10.

A drive device 23 consisting of a motor 21 and a speed reducer 22 is attached to the side of the support section 20 .

The speed reducer 22 includes: A cutting burner 24 is connected so as to swing on a plate surface perpendicular to the longitudinal direction of the traveling carriage 1.

This cutting burner 24 is a device that uses gas or plasma, and is a device that cuts the bar 19 attached and fixed to the magnet attachment ends 11 and 12 along a plane perpendicular to the longitudinal direction of the traveling vehicle 1. It is.

Next, the operation and function of the bar cutting device having the above structure will be explained.

Normally, this bar cutting device is installed and used at predetermined intervals in the longitudinal direction of the overhead traveling rail 4.

First, the moving part 15.1 is cut according to the diameter of the bar to be cut.
5 and between the moving parts 16.16.

After this adjustment is completed, the rod 19 is attached to the magnet attachment ends 11 and 12.

After the installation of the bar 19 is completed, the lifting sliders 5 and 6 are moved by the drive cylinder 7.8, and the bar 19 is moved to the cutting burner 2.
Get closer to 4.

In this state, the cutting burner 24 is ignited and the drive device 23 is operated.

As a result, the cutting burner 24 swings along a plane perpendicular to the longitudinal direction of the traveling carriage 1 and cuts the bar 19.

In this way, the bar 19 is reliably supported by the magnet attachment ends 11 and 12 before and after cutting, so it does not move just before the cutting is completed and is cut with a uniform cut surface without scratches. It turns out.

FIG. 3 shows a second embodiment of this invention, showing the same components with the same reference numerals as in FIGS. 2 and 3, and their description will be omitted.

Symbols 30 and 31 in the figure are respectively magnet attachment ends lL1
This is a connecting fitting fixed to the upper end of the fixing part 13, 14 of No. 2.

These connecting fittings 30 and 31 are connected to the movable parts 5b and 6b of the lifting sliders 5 and 6 by pins 32 and 33 on the traveling carriage 1.
are rotatably connected along a vertical plane along the longitudinal direction.

Even if the bar cutting device according to this invention is configured as described above, the same advantages as in the first embodiment can be obtained, and even when it is necessary to cut the bar 19 diagonally, it is possible to cut the bar 19 as shown in the figure. By changing the extension and contraction length of the lifting sliders 5 and 6, the bar 1 is
9 can be cut diagonally.

In addition, in the first and second embodiments described above, a structure as shown in FIG. 4 may be applied instead of the magnet attachment ends 11, 12.

This magnet attachment end 40 is generally known as a split magnetic pole type, and is composed of a moving part 41 and a fixed part 42.

The moving part 41 includes a plurality of rod-shaped electromagnetic magnets 41a.
When the magnet attachment end 40 is in a suspended state, it is fixed to the fixed part 42, and when it is placed on the ground etc. and released from the suspended state, it is supported by the fixed part 42. However, each electromagnetic magnet 41a can be moved up and down separately.

The fixing part 42 has a toggle mechanism consisting of a plurality of links and bent levers, and is configured to clamp and fix each electromagnetic magnet 41a when a traction force is applied upward (in the direction of the arrow in the figure). ing.

If the magnet attachment end 40 as described above is applied as the magnet attachment end, the same effect as the magnet attachment ends 11 and 12 in the first and second embodiments can be performed, and the round It is possible to hang not only bars but also bars with more complex shapes.

As explained above, the bar cutting device according to the invention is
A movable running trolley is attached to the ceiling running rail, and a pair of lifting devices each having a magnet attachment end at the tip are attached to both ends of the lower part of this running trolley, and a bar is suspended and fixed by these magnet attachment ends. Since the structure is such that cutting is performed using a cutting burner swingably provided at the center of the lower part of the traveling carriage, the bar can be easily cut and a uniform cut surface without scratches can be obtained.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment of this invention, with Figure 1 being a front view, Figure 2 being a view from the line ■-■ in Figure 1;
FIG. 3 is a front view showing a second embodiment of this invention, and FIG. 4 is a configuration showing a modification of the magnet attachment end. 1... Traveling trolley, 4... Ceiling running rail, 9°10... Lifting device, 11. 12.
40... Magnet attachment end, 23...
Drive device, 24... Cutting burner.

Claims (1)

[Scope of utility model registration request] A traveling trolley movably suspended on an overhead traveling rail, a pair of elevating devices that are suspended and fixed at both ends of the lower part of this traveling trolley, and bars attached to the lower ends of these elevating devices are respectively attached and fixed. a pair of magnet attachment ends, a drive device that is suspended and fixed to the lower part of the traveling truck between the two lifting devices, and a drive device that is swingably attached to the drive device and is swingably driven by the drive device to move the rod. A bar material cutting device comprising a cutting burner for cutting material.