JPS6124334Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that is made of metal, and in particular, is capable of easily manufacturing rectangular pipes, square vertical pipes, and eaves.

Generally, high-grade metals such as copper are handmade one by one to match the building. In the case of the name, a relief pattern is applied to the side plates and the bottom plate, and the abutting portions of the two opposing side plates and the bottom plate are bent together with their edges aligned to form a single unit to stop water.

However, all of this bending and growth of the edges of both plates is done with a hammer, etc., which not only requires a lot of work, but also causes the shape of the abutting part to become uneven due to changes in the impact force of the hammer, creating an uneven shape that is aesthetically unsatisfactory. It has some unpleasant drawbacks.

The present invention uses machining instead of manual work to speed up production and provide a beautiful finish.The details will be explained below.

A swing table 2 is provided on a work table 1 which is placed on the top of the work table or other floor surface, etc., and the swing table 2 is installed between the iron part of the work table 1 and the lower surface of the swing. The rocking table 2 is pivoted between the protruding brackets 3 and 3 by a shaft 4, and is further moved by a lifting device 5 provided between the two tables.
is made to swing or tilt in the vertical direction about the shaft 4.

A shaft 7 rotatably supported by bearings 6, 6 fixed on the rocking table 2 is provided on the rocking table 2, and a bending roll 8 is detachably attached to the tip of the shaft 7, and the other end of the shaft 7 is attached. bevel gear 9 or bend forming roll 8
A handle H for rotating is provided.

In the embodiment shown in the drawings, the bevel gear 9 at the end of the shaft with the bend-forming roll is connected to the other bevel gear 10.
The bevel gear 10 is fixed to one end of a shaft 12 which is supported by brackets 11, 11 so as to intersect with the shaft 7 at a substantially right angle, and the shaft 12 is fixed to the other end of the shaft 12 by rotation of the handle H. Bevel gear 10,9
and the bending roll 8 is rotated via the shaft 7. The bending roll 8 is formed into a disk shape having a predetermined arbitrary diameter, and a V-shaped groove 8A is formed on the outer peripheral surface of one side of the outer periphery.

Furthermore, a receiving roll 13 is arranged below the bending roll 8 and facing it. The receiving roll 13 is rotatably supported on the upper end of an arm-shaped bearing 14 protruding from the workbench 1. The outer circumferential surface of the receiving roll is a tapered conical shape, and when supported on the bearing, the conical outer circumferential surface shall be horizontal and parallel to the outer circumferential surface of the above-mentioned bending roll. The inner peripheral part, which is one side of the receiving roll 13, is made vertical when the receiving roll is supported, and the vertical surface 13A of the receiving roll is made to be on the same vertical line as the inner surface 8B of the bending roll. .

The distance between the rolls 8 and 13 is adjusted by swinging the swing table using the lifting device 5.

A push roll 15 is arranged to approach and contact from the lateral direction the contact portion of both rolls 8 and 13 facing each other vertically. The push roll 15 is rotatably supported by one end of a sliding rod 17 that is slidably supported by brackets 16, 16 on the rocking table 2, and a handle of a screw rod 18 is attached to the other end of the sliding rod 17. By rotating H, the screw rod 18 screwed into the bracket 19 is moved back and forth, and when the screw rod moves forward, the sliding rod is pushed to move the push roll forward. Part of the sliding rod and bracket 19
Alternatively, a tension spring 20 is stretched between a part of the rocking table 2, and when the screw rod is withdrawn by the tension of the spring, the sliding rod is also moved back, thereby causing the outer periphery of the push roll to The gap between the surface and the side surface of the bent roll receiving roll shall be adjusted.

To form a metal ring, two pre-cut side plates a and a bottom plate b are assembled by butting their edges against each other and interlocking them. At this time, as shown in FIG. 4A, the L-shaped edge b' of the bottom plate edge is inserted into the U-shaped edge d of the side plate edge. As shown in FIG. 3, the bending roller 8 is fixed to the shaft 7, and the swinging rod 2 is swung by operating the lifting device 5, so that the upper and lower bending rollers 8 and the receiving roller 13 are brought into contact with each other. The side plate a is brought into contact with the inner surfaces of both rollers that face each other vertically, and the push roller 15 is advanced to the rollers 8 and 13 by rotation of a screw rod, so that the push roller 15 and the rollers 8 and 13 are brought into contact with each other. When the gap is shortened and the edge of the side plate is inserted between them, and the handle H is rotated, the edge of the side plate is bitten in by the rotation of the bending roller 8, forming a flat shape as shown in Figure 4 (B). . After forming the entire length of the side plate in this manner, the handle H is inserted between the flattened side plate edge c and the groove 8A of the receiving roller 13 and bending roller 8. When the roller 8 is rotated, the edge c is bent toward the outer surface of the bottom plate along the slope of the V-groove as shown in FIG. 4C. Next, the bending roller 8 is reversed so that the V-groove is on the outside, and an edge is formed between the two rollers 8, 13 and the push roller 15, which face each other vertically, as shown in FIG. 4C. When c is clamped and the bending roller 8 is rotated to engage the edge c, the edge c will be attached to the outer surface of the bottom plate, as shown in Fig. D.

At this time, between the upper and lower rollers 8 and 13 and between the rollers 8 and 1
By adjusting the distance between 3 and 15, the shape of the edge fold can be adjusted.

When forming a long eave or a doorway, the workbench 1 may be placed on a tabletop or the like, or the workbench may be tilted to avoid direct contact with the floor when swinging.

Therefore, according to the present invention, since the three rolls face each other and have a special shape, two or three metal plates can be butted by passing between the rolls once or twice or more. It is easy to form bends in the part, and since only the bend part is press-formed with a roll, even bent gutter-shaped cylindrical objects can be formed without damaging the relief provided on the plate. During molding, the bending rolls, etc. can be easily rearranged, and the molding of the thorn can be easily performed, which has a remarkable effect.

[Brief explanation of the drawing]

Figure 1 is an overall external view, Figure 2 is a plan view,
FIG. 3 is a front view, FIG. 4 is an explanatory view showing the order of assembly, and FIG. 5 is an external view of a ring which is an embodiment of the apparatus formed by the device of the present invention. 1... Workbench, 2... Rocking table, 3, 11, 1
6, 19... Bracket, 4, 7, 12... Axis,
5... Lifting device, 6, 14... Bearing, H... Handle, 8... Bending forming roll, 9, 10... Bevel gear, 13... Receiving roll, 15... Push roll,
17... Sliding rod, 18... Screw rod, 20... Spring, a... Side plate, b... Bottom plate, a'... U-shaped edge, b'... L-shaped edge, C... Flat edge.

Claims (1)

[Scope of utility model registration request] In an apparatus for forming girders from metal plates, the outer peripheral surface of the workbench 1 is made into a conical shape, and the inner peripheral surface is vertically aligned so that it is located on the same vertical line as the side surface of the bending and forming roll when the receiving roll is pivotally supported. A receiving roll 13 is provided so that its outer peripheral surface is horizontal, and one end is pivotally supported on this workbench.
A swinging table 2 is provided which can be freely tilted by a lifting device 5 provided at the other end, and a V-groove is provided on the outer periphery of the swinging table facing the circumferential surface of the receiving roll. The forming roll 8 is rotatably provided, and the tip of a sliding rod 17 is swingably provided on the swing table with a bracket 16 on the side of the contact surface of the rollers 8 and 13 which face each other vertically. In order to adjust the pressing force of this push roll 15 to the bending roll and receiving roll side, the tip of a threaded rod provided on a rocking table is placed behind the sliding rod. A metal grate forming device that presses the edge and bends the edge of the grate by the cooperation of three rolls.