JPS6310176Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an end bending machine for bending the end of a long or hollow prism.

Conventionally, when bending the protruding end of a base material such as a hollow prismatic column, a material of high quality was placed against the hollow part and the end was bent with a hammer or the like. In this case, it is not easy to bend and requires special techniques or multiple people, and
It was not possible to bend two opposing ends at the same time.

The present invention has been made to eliminate such drawbacks, and its structure will be explained as follows.

This invention consists of a presser arm 1 which has a presser section 7 and a mold section 14 at one end, is connected to a presser device 13 at the other end, and is rotatably attached to a presser pivot shaft 3 disposed on a base plate 10. , a side plate 9 disposed on the base plate 10 etc. for holding the base material 11 by the pressing part 7 of the presser arm 1; This is an end bending machine characterized in that it is formed from a bending device 2 connected to a device 13.

In the above configuration, the pressing device 13 may be operated by hydraulic pressure such as a hydraulic cylinder.

Further, in the above configuration, the presser arm 1 and the side plate 9
The folding device 2 and the folding device 2 may each be composed of a pair, and may be arranged such that the pressing portion 7 faces outward.

Further, in the above configuration, the folding device 2 may use a lever action.

An embodiment of the end bending machine of this invention will be described below with reference to the drawings.

FIG. 1 shows a plan view of the main parts, and 1 is a presser arm.The presser arm 1 has a pressing part 7 and a mold part 14 at one end, and the other end is connected to a hydraulic cylinder etc. by a connecting shaft 5 for the presser. It is rotatably attached to a presser pivot shaft 3 disposed on a base plate 10 that is adjustably attached to a machine body (not shown) with bolts or the like.

9 is a side plate, and the side plate 9 is attached to the presser arm 1.
It is fixed or adjustable with bolts or the like to the base plate 10 so that the base material 11, which is the workpiece whose end portion 12 is to be bent, is held between the pressing portion 7 and the pressing portion 7.

Reference numeral 2 denotes a folding device, and the folding device 2 uses a lever action to fold the protruding end portion 12 of the clamped base material 11 into the mold portion 14 of the presser arm 1 by its folding portion 8. The bending portion 8 is rotatably attached to the bending pivot 4 provided on the base plate 10, and one end of the bending device 2 Connection shaft 6
It is connected to a pressing device 13 consisting of a hydraulic cylinder or the like.

The device formed as described above consists of a pair of left and right parts, and the pressing part 7 of the presser arm 1 is the second
It is disposed so as to press outward from the inside of the base material 11 shown in the figure.

With the above configuration, when using this, the presser arm 1 and the bending device 2 are each operated in the direction of the arrow by the pressing device 13 to standby at the position shown by the broken line, and the base material is placed between the respective side plates 9. 1
1 is placed so that the end portion 12 of the arm 1 protrudes from the side plates 9, 9, and then the pressing device 13 of the arm 1 is operated in the opposite direction of the arrow, so that the pressing portion 7 and the side plates 9 push the base material 11, and by operating the pressing device 13 of the bending device 2 in the opposite direction of the arrow, the bending portion 8 bends the end portion 12 of the base material 11, and the base material 11 is bent as shown in FIG. Then, if the respective pressing devices 13 are operated again in the direction of the arrow, the base material 11 is released so that it can be pulled out.

The pressing devices 13 of the left and right presser arms 1 and the bending device 2 may be operated independently or in conjunction with each other. The wall thickness etc. may be determined depending on the shape of the base material 11 and its end portion 12, etc., and the shape and bending method of the bending device 2 are not limited to the above embodiments. etc., the base material 11 may be bent by being directly pressed by a hydraulic or pneumatic cylinder.

Further, when a large number of base materials 11 having the same shape are to be bent, a positioning plate or the like may be optionally provided on the base plate 10 or the like so that the base materials 11 can be held at predetermined positions.

Furthermore, in order to increase the strength of the holding pivot 3 and the bending pivot 4, a mounting plate or the like may be provided above the pivot, either integrally with the base plate 10 or separately, and the pivots may be fixed at both the upper and lower ends. It is.

As described above, the present invention allows a single worker to easily cut the ends of long base materials such as hollow prisms, groove-shaped steel, and lip groove-shaped steel without requiring any special techniques. It can be bent at the same time, and since the bending is done mechanically, the finish is uniform, and it can be easily mass-produced, which has the effect of reducing costs.

[Brief explanation of the drawing]

The drawings show an embodiment of the end bending machine according to this invention.
The figure is a perspective view showing the base material before bending, and FIG. 3 is a perspective view showing the base material after bending. In the drawing, 1 is a presser arm, 2 is a bending device, 3 is a presser pivot, 4 is a bending pivot, 5 is a presser connection shaft, 6 is a bending connection shaft, 7 is a pressing part, 8
10 is a bent portion, 9 is a side plate, 10 is a base plate, 11 is a base material, 12 is an end portion, 13 is a pressing device, and 14 is a mold portion.

Claims (1)

[Claims for Utility Model Registration] 1. One end has a pressing part 7 and a mold part 14, the other end is connected to a pressing device 13 and is rotatably attached to a presser foot pivot 3 disposed on a base plate 10. The presser arm 1 , the side plate 9 disposed on the base plate 10 etc. for clamping the base material 11 with the pressing part 7 of the presser arm 1 , and the end portion 12 of the clamped base material 11 are folded. An end bending machine characterized in that it is formed by a bending device 2 connected to a pressing device 13 for bending. 2. The end bending machine according to claim 1, wherein the pressing device 13 is operated by hydraulic pressure from a hydraulic cylinder or the like. 3 The presser arm 1, side plate 9 and bending device 2 are
The end bending machine according to claim 1 or 2, which is comprised of a pair of parts, each of which has a pressing part 7 facing outward. 4. The end bending machine according to claims 1 to 3, wherein the bending device 2 uses a lever action.