JPS603925A - Combination sizing press - Google Patents

Abstract

PURPOSE:To obtain a press capable of performing the expansion and compression formings of a rim simultaneously or almost simultaneously at the same place by incorporating specifically the compression and expansion dies of a wheel rim of motor car. CONSTITUTION:Plural taper surfaces 9 whose upper parts are slanted to the inside are provided in an annular form to the inner periphery of an outside frame 8 fixed onto a vertically moving bed 5 mounted on cylinders 4 on an annular bed 3, and plural membes 10 which are made to expand and contract by the vertical movements of the surfaces 9 are provided to the inside of the surfaces 9. Members 16 which are made to expand and contract by the vertical movement of a taper surface 15 provided to the central part of a space which is surrounded with rim-compressing dies 14 provided to the inner surfaces of the members 10, is provided to said space, and rim-expanding dies 17 are provided to the outer surfaces of the members 16. When a rim 29 is charged into a gap (t) between the dies 14, 17, and the cylinders 4 are actuated to raise the members 10, 16 and the dies 14, 17 from a real-line position to an imaginary-line position, the members 10 and the dies 14 approach with each other. Next, when the cylinder 16' is actuated to raise the surface 15, the outer and inner surfaces of the rim 29 are pressed by the dies 14 and 17 respectively, thereby forming the rim 29 into a prescribed shape.

Description

Detailed Description of the Invention The present invention provides a tapered surface on the inner periphery of an outer frame, a member that expands and contracts by interconnection with the tapered surface, and a rim compression mold on the inner surface of the expandable and contractible member. This invention relates to a funbination sizing press having a structure in which a member is provided in the space that expands by mutual movement with a tapered surface provided in the center of a space surrounded by the space, and a rim expansion mold is supported on the outer surface of the member. The purpose is to shorten the molding line for automobile wheel rims.

To explain the embodiment of the present invention shown in the drawings, 1 floor surface 1
A current machine stand 3 is provided in the middle of the pit 2 formed in 2, and an elevator stand 5 is provided above the hydraulic cylinder 4 erected on the machine stand 3. An outer frame 8 fixed to the annular machine base 3 with bolts 6 and nuts 7 is provided on the upper part of the elevator base 5.
As shown in FIGS. 2 and 3, a plurality of tapered surfaces 9 whose upper portions are inclined inward are provided in an annular shape along the inner periphery of the Taper 9
are formed on the outer periphery of the plurality of expansion/contraction members 10, respectively. This member 10 is slidably supported in the radial direction on the elevator platform 5, is pushed outward 511 by the force of the spring 11, and is fixed to the elevator platform 5 in the vertical direction by bolts 12 and retaining rings 13. It expands and contracts in the radial direction due to the mutual movement of the tapered surfaces 9, 9. Each member 10 supports a rim compression mold 14 in a detachable manner.

In the center of the space recessed in the rim compression mold 14, an elevating circle #-shaped taber surface 1b is provided that passes through the center of the elevating side table 5.
The taber surface 15 is raised and lowered by a hydraulic cylinder 16 provided on the elevator platform 5, and the upper part thereof is tilted inward. And in the same direction as the taper surface I5.

A rim compression die 17 is removably supported on the outer surface of an expansion/contraction member 16 having a tapered surface 15 on the inner surface, and the rim compression die 17 is made to correspond to the compression die 14, with a gap II i interposed between the two dies 14 and 17. The expansion/contraction member 16 is pushed inward by the spring 18, and the member 16 can be expanded/contracted in the radial direction by mutual interlocking of both the tapered surfaces 15,15. This member 16 is fixed in the vertical direction by slidably engaging a ring portion 19 formed on the lower surface with a radial direction groove 20 provided on the upper surface of the elevator frame 5. In the figure, 21.22 indicates the engagement groove between the expansion/contraction member 10.16 and the mold 14.17, 23 indicates the stopper of the elevator frame 5 provided on the lower surface of the outer frame 8, and 24 indicates the level of the stopper 23. l1111f for i1 section
lA element, 25 is a sprocket installed on the same screw 24, 26
is a reduction motor for rotating sprocket 25, 27 is a chain for rotating sprocket 250, and 28 is a conical J totaba [
j[J15 guide bush, 29 is the raw material rim, 30 is the carry-in conveyor, 31 is the carry-out conveyor, 32 is the rim carry-in/out magnet, 33 is the lifting cylinder of the same magnet 32, 34 is the running rail of the same magnet 320 Therefore, the raw material rim 29 on the conveyor 30 is attracted by the magnet 32 and stopped along the rail 34 at the solid line position in FIG.
4.17 into the gap t between them, and operate the hydraulic cylinder 4 to move both the wiping members 10.16 and both molds 14.17 to the second
When raised from the solid line position to the virtual line position, both parts tfAl
o and the mold 14Jd are brought close together against the force of the spring 11 due to the mutual movement of the tapered surfaces 9.9. Thereafter, when the hydraulic cylinder 16 is operated to raise the synchronized tapered surface 15, the outer surface of the rim 29 is pressed by the compression mold 14 and the inner surface by the pressure loss mold 17, thereby forming the rim 29 into a predetermined shape. Thereafter, the hydraulic cylinder 16N is lowered to the position shown by the solid line in FIG. 2, and the molded rim 29 within the gap is lifted up by the magnet 32 and carried out from the conveyor 31, and the same operation as described above is repeated. The rim forming operation by the two molds 14.17 can also be performed separately for each of the two molds 14.17.

Conventionally, the expander molding line and shrinker molding line for rims were independent, and the process was moved from one molding line to the other, which required space and time, and had the drawback of making it difficult to improve rim molding efficiency. .

The present invention was developed in view of the above-mentioned defects, and since the present invention is constructed as described above, expander molding, that is, the above-mentioned pressure loss molding, and shrinker molding, that is, the above-mentioned compression molding, are carried out simultaneously or almost simultaneously at the same place. This has the effect of not requiring much space and significantly improving the efficiency of rim forming operations.

[Brief explanation of the drawing]

FIG. 1 is a normal ifu view showing the funbination sizing press of the present invention, FIG. 2 is a longitudinal sectional view of the same press, and FIG. 3 is a plan view thereof. 8... Outer frame, 9.15... Tapered surface, 10.16... Expansion/contraction member, 14... Rim compression type, 17... Rim compression type. Patent Applicant Watanabe Iron Works Co., Ltd. Procedural Amendment (Spontaneous) July 16, 1981 IM (Japanese 58th Special Fi'F M! No. 12368 No. 2)
Name of the invention Combination sizing press 3 Name of the person making the amendment Watanabe Iron Works Co., Ltd. 4 Agent address: 810 Telephone: 092-741-1148 Detailed description of the invention in Meiyo 1 Column 6 Contents of sleeve correction (11 Specification No. 1) 1 hydraulic cylinder (2) on page 3, line 3
On page 3, line 12, we will correct the words "elevator frame 5" to "1 elevator platform 5". (3) In the 17th line of the 3rd page of the same page, ``The ``shaft frame 5J'' has been corrected to the F machine frame 5J. ” and I will not correct it. (5) 1 hydraulic cylinder 4.16 on page 4, line 18
” will be corrected to “Hydraulic cylinder 4/16′”.

Claims (1)

[Claims] (11 A member with a tapered surface on the inner periphery of the outer frame, which expands and contracts by interlocking with the tapered surface. A combination sizing press comprising a member that expands and contracts in the space by mutual movement with a tapered surface provided in the section, and a rim expansion die is supported on the outer surface of the member.