JPS6117793A - Caulking device for hose fitting - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a crimping device for a hose fitting, such as a hose cap or a hose intermediate holder, which is used when crimping the sleeve portion of the hose fitting to the hose.

(Prior Art) Conventionally, in this type of crimping device, as shown in FIG. 7, a front flange 1 and a rear flange 2 are connected and fixed by a support rod 3, and a hydraulic cylinder 4 is fixed to the rear flange 2. , a rod 5a in the piston is inserted through the rear flange 2 and connected to a bowl-shaped taper ring holder 6, and a taper ring 7 whose inner peripheral surface is widened toward the front is connected to the taper ring holder 6. was. On the other hand, eight dies 9 were arranged radially through a die holder 8 at the rear end of the insertion hole la in the front flange l. And cylinder 4
When the piston rod 5a moves forward, the taper ring 7 comes into contact with the die 9, and the inner peripheral surface 7a of the taper ring 7 causes the die 9 to move toward the center, so that the die 9 is arranged. For example, by setting the hose cap 10, which is attached to the hose S, in the center, the hose cap 10 can be caulked and attached to the hose S.

However, in the conventional caulking device, the cylinder 4 and the piston rod 5a, which are the pressing means for pushing out the taper ring 7, are arranged on the rear extension line of the center where the die 9 is arranged, so the rear of the taper ring 7 is It will be blocked,
When using a long hose cap 10 or when using a long hose S and arranging the hose S side behind the taper ring 7, the hose cap 10 and hose S may hit the taper ring holder 6 etc. and the caulking work may not be performed. Therefore, there were restrictions on the length of the hose cap and hose that could be used.

(Object of the invention) This invention has no limitations on hose fittings or hose length,
To provide a swage device for a hose fitting, which can fasten a fitting to the end or intermediate part of a hose, no matter what length the hose is.

(Structure of the Invention) The gist of the invention is to push the taper ring forward through a pressing means, guide a plurality of dies arranged in front of the taper ring to the inner circumferential surface of the taper link, and move the taper ring to the center in the radial direction. In the hose fitting crimping device, the hose fitting placed in the center of the die is caulked to connect the hose inserted into the hose fitting, and the pressing means has a cylindrical shape with an inner periphery corresponding to the inner periphery of the tapered ring. A hose fitting crimping device comprising a cylinder and a piston that moves back and forth within the cylinder to project a rod tip from an end face of the cylinder and press a tapered ring.

(Example) Fig. 1 is a sectional view of a caulking device in an embodiment of the present invention, Fig. 2 is a perspective view of a piston in the same embodiment, and Fig.
The figure is a front view of the cylinder No. 9 in the same embodiment, FIG. 4 is a view of the die and die holder in the same embodiment seen from the rear, and FIG. 6
The figure is a sectional view showing how the same embodiment is used.

The caulking device of the embodiment has eight dies 19 as in the conventional case.
are arranged radially by the gouey holder 18, and a spring seat 19a is bored on each adjacent surface between the dies 19, and a spring 20 is disposed therein. It is held in place and is arranged to be slidable in the radial direction (see Figures 4 and 5). , the guide holder 18 has its insertion hole 18c aligned with the insertion hole 11c of the front flange 11, and the pole plunger 2
2, its position is fixed with respect to the front flange 11. Note that 18a is a handle of the guide holder 18.

At the rear of the die 19, a taper ring 17 whose inner circumferential surface 17a becomes wider toward the front is fixed by an annular taper ring holder 16 using screws or the like (not shown). .

The pressing means for pushing the taper ring 17 forward in the direction of the gouge 19 together with the taper ring holder 16 is hydraulically operated and consists of a cylinder 14 and a piston 15. The ends of eight rods 15a of the piston 15 protrude from the end surface of the cylinder 14 and are evenly connected to the taper ring holder 16 by screws 23.

The cylinder 14 has a cylindrical shape with an inner periphery 14a having approximately the same diameter as the inner periphery of the tapered ring 17, and a cylinder chamber 14b having four annular parts has a corresponding annular piston 1.
5 is arranged (see Figure 21+3). In front of the cylinder chamber 14b, there is an insertion hole 14c through which a rod 15a connected to the piston 15 with a screw 24 is inserted.
After the piston 15 and rod 15a are installed, lid bodies 25 and 26 each having a sealing member for sealing the cylinder chamber 14b close the front and rear end surfaces of the cylinder 14. There is. Note that the cylinder chamber 14b
The chambers A and B, which are divided by the piston 15, are each supplied with oil 14d on the side wall of the cylinder 14 and pressurized oil from a hydraulic pump (not shown) through the cuff 26a of the lid 26.

To explain how the device of this embodiment is used, first, the sleeve portion 30a of the hose cap 30 is attached to the hose S, and the sleeve portion 30a is set to the center where the die 19 is arranged (see Fig. 6). . In this case, even if the hose fitting 30 has a long dimension, the taper ring holder 16 is annular and the cylinder 14 is also cylindrical with an inner circumference 14a corresponding to the inner circumference of the taper ring 17. Since the rear of the taper ring 17 is not blocked, the hose cap 30 can be set regardless of its length.

After that, pressurized oil is supplied to the B chamber of the cylinder chamber 14b, oil is removed from the A chamber, the rod 15a of the piston 15 is pushed forward, and the taper ring 1 is passed through the taper ring holder 16.
7 to the front, the inner peripheral surface 1 of the taper ring 17
7a causes the tie 19 to move to the center in the radial direction, and the sleeve portion 30a of the hose cap 30 is caulked, so that the hose cap 30 can be fastened to the hose S.

Then, if pressure oil is supplied to chamber A of the cylinder chamber 14b and oil is removed from chamber B, and the taper ring 17 is moved rearward, the die 19 expands radially outward by the spring 20, so that the hose S The hose cap 30 fastened to can be taken out.

In addition, in the embodiment, the piston rod 15a is connected to the piston 1.
A piston rod with 5 to 8 protrusions is shown, but the piston rod 1
5a may be formed into a single cylindrical shape connected in an annular shape. Incidentally, when the piston rod is configured with several piston rods as in the embodiment, the sealing treatment of the cylinder chamber 14b is performed once.
The sealing process can be performed easily around each rod 15a.

Further, in the embodiment, the taper ring 17 is connected to the piston rod 15a via the taper ring holder 16, but the piston rod 15a may be connected directly to the taper ring 17.

Further, in the embodiment, the hose cap 30 is set rearward from the die 19, but if the hose cap 30 is bent, the hose S is placed rearward from the die 19, and the front flange 11 You can also make the hose cap that is bent from the front protrude forward and swage it.

(Effects of the Invention) In the hose fitting crimping device according to the present invention, the pressing means for pressing the tapered ring has a cylindrical cylinder having an inner periphery corresponding to the inner periphery of the tapered ring, and moves back and forth within the cylinder. The cylinder end surface is made up of a piston that protrudes the rod tip and presses the taper ring, so the rear of the taper ring is not blocked like in the past, and can be used for hose fittings such as hose caps and hose intermediate holders, etc. Regardless of the length, the hose fitting can be crimped at the end or middle of the hose to connect it to the hose.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a caulking device in one embodiment of the present invention, FIG. 2 is a perspective view of a piston in the same embodiment, and FIG.
The figure is a front view of the cylinder in the same embodiment.
The figure is a view of the die and die holder in the same embodiment as seen from the rear, FIG. 5 is a v--cross sectional view in the same embodiment, FIG. 6 is a sectional view showing how the embodiment is used, and FIG. 7 is a conventional FIG. 8 is a sectional view of the crimping device, showing how the conventional crimping device is used. 4.14...Cylinder, 7.17...Tapering, 7a*17a-inner peripheral surface, 9-19...Die, 10
30... (Hose metal fitting) Hose cap, 14a...
Cylinder inner circumference, 15...piston, 15a...piston rod. Patent applicant Figure 2 Figure 3 Figure 4 211

Claims (1)

[Claims] The tapered ring is pushed forward through a pressing means, and a plurality of dies arranged in front of the tapered ring are guided by the inner peripheral surface of the tapered ring and moved to the center in the radial direction, so that the plurality of dies disposed in front of the tapered ring are moved to the center in the radial direction. In the hose fitting crimping device for caulking a hose fitting to connect it to a hose inserted into the hose fitting, the pressing means includes a cylindrical cylinder having an inner periphery corresponding to the inner periphery of the tapered ring;
A hose fitting swage device comprising: a piston that moves back and forth within the cylinder to project a rod tip from an end face of the cylinder and press the tapered ring.