JPS6021239B2 - How to hang extruded shapes for surface treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for suspending extruded sections for surface treatment in which a plurality of extruded sections are vertically connected and suspended.

Generally, when an extruded aluminum alloy profile that is extruded as a long material is subjected to surface treatment processes such as degreasing, etching, anodizing, or coloring, the extruded profile is transported back and forth during each surface treatment process. As shown in FIGS. 1 and 2, it is suspended from an electrically conductive carrier 1 for use via an extruded support plate 2 attached to the lower part of the carrier 1.

Long extruded shapes that have been surface-treated using this vertical suspension method are cut into the required dimensions in the subsequent process, but because they are cut after surface treatment, there is no difference in the cut surface. Since the untreated portion of the fabric is exposed, if such extruded sections are used as building materials, they may corrode depending on where they are used, or
Colored extruded sections have the disadvantage that the colored parts and the exposed fabric parts are clearly distinguishable, which impairs the beauty and appearance of products that use these extruded sections. . Therefore, it is possible to perform surface treatment after the cutting process, but with the conventional support method, it is not possible to suspend and support many short extruded shapes on the conveyor 1, which has a limited length, and the surface treatment This inevitably leads to a decrease in work efficiency. However, in view of the fact that it is advantageous and necessary to perform surface treatment after cutting in order to eliminate the various defects that occur on the product due to the conventional vertical hanging type surface treatment method, the present invention has been developed to With the aim of providing a method for hanging extruded shapes that can perform surface treatment with the same work efficiency as before, even with shorter extruded shapes, we have developed a special method for hanging extruded shapes. It is a work of ingenuity.

That is, in the method of the present invention, a connecting portion having upper and lower screw shaft portions is screwed to an extruded section having an integrally extruded screw portion, and a connecting portion having upper and lower screw shaft portions is connected to the upper and lower machine of the extruded shape member having a screw portion that is integrally extruded. At the same time, multiple extruded shapes are connected vertically, and the upper extruded shape is connected to the extruded shape supporting body attached to the lower part of the conductive conveying body, so that multiple extruded shapes are connected to one supporting body. The feature is that the shape material is suspended.

Hereinafter, the method of the present invention will be explained based on the illustrated embodiment.
As shown in the figure, the threaded parts 4 and 4a are integrally extruded, but the threaded part 4 in Fig. 3 is formed into a shape extruded for building materials such as sash frames and shoji frames. It uses a commonly provided tapping hole,
Moreover, FIG. 4 shows a profile without a tapping hole, and in this case, a concave groove 5 which is extruded at the same time is used.

As shown in FIG. 5, the connection A connecting the extruded sections 3 has screw shafts 8 and 9 above and below the rotary operation section 7 in the center.

When using this connected odor A, as shown in FIG. By screwing together the threaded portion 4 of the material 3, the extruded sections 3, 3 are connected vertically via the connection A.

Note that the extruded shape member 3a at the upper end is suspended and supported by a support 2 attached to the lower part of the carrier 1 and fixed to the conductive twill 1, and the extruded shape member 3a at the upper end is As shown in , there are cases where the extruded shape 3a is not completely immersed in the processing solution, so in this case, it is recommended to cut the extruded shape 3a into the shortest possible size and use it as a dummy material so that it can be discarded. preferable.

The supporting odor 2 in FIG. 6 has the extruded shape clamping part 11 at the lower part like the one in FIG. 2, but as another example of the supporting odor 2, as shown in FIG. 9, It is possible to use one having a screw shaft portion 12 on the lower side that can be screwed onto the screw portions 4, 4a of the extruded shape member 3a. Furthermore, although the supporting odor 2 is formed separately from the conveying body 1, the supporting odor 2 may be attached integrally with the conveying body 1 as shown in FIG.

FIG. 8 shows another embodiment of the connecting odor A, in which the upper spiral 8a and the lower screw shaft 9a can be screwed together, and the upper spiral shaft 8a and the lower screw shaft 9a are provided at the lower part of the upper screw shaft 8a. A screw hole 6 is provided in the rotary operation portion 7a, and a screw portion 13 that is screwed into the screw hole 6 is provided protruding from the upper end of the lower screw shaft 9a.

As shown in the above embodiment, the method of the present invention involves screwing together the connecting odor and the extruded shape and suspending it vertically.
It is now possible to suspend multiple extruded shapes from one support and perform surface treatment. Therefore, the extruded shapes after cutting can be processed with the same work efficiency as when hanging long strips in the past. It will demonstrate the effects that can be achieved. In addition, since the extruded shapes are connected by screwing into threaded parts such as tapping holes and grooves, there is no overlap between the connection odor and the cut end surface of the extruded shapes. It has the advantage of being able to reliably perform surface treatment on cut surfaces, and therefore eliminates the inconvenience of corrosion of the relevant parts and exposure of the bare surface of extruded shapes in colored products, resulting in products with a good appearance. This has the effect of providing the following benefits.

Furthermore, even though there is no overlapping part at the cut end surface when connecting the connecting odor and extruded shape, the spiral of the connecting tool bites into the threaded part of the extruded shape, so the connected state is rather solid and immovable. Moreover, since a sufficient contact area is maintained at the threaded part, the connecting part and the extruded part maintain sufficient fin permeability to each other, and multiple extruded parts that meet vertically All shapes can be surface-treated uniformly.

Note that the inner surface of the threaded part of the extruded material is not locally surface-treated, but in the tapping hole, a connection material is applied to the relevant part.
There is no problem because the screw for attachment is screwed in, and the groove is a part that is not exposed to the appearance of the product, and the groove as a screwing part is provided in a part that is not exposed. If so, no problem will occur.

[Brief explanation of drawings]

Figures 1 and 2 are schematic cross-sectional views showing the conventional vertical hanging method for the largest length of material, Figures 3 and 4 are partial perspective views showing extruded sections, and Figure 5 shows an example of the connection odor. 6 is a schematic cross-sectional view showing a suspended state according to the method of the present invention, FIGS. 7 and 8 are partial front views showing a connected state, and FIGS. 9 and 10 are
The figure is a side view showing another example of supporting odor. Symbol, A... Connecting tool, 1... Electric conductive carrier, 2... Supporting tool, 3... Extruded shape member, 4, 4a... Screwing part, 8,
8a, 9.9a... Spiral shaft portion. Shigeru 1 Madara Z Prisoner 3 Kaze Shigeru 4 Figure * 5 Nagi S et al mother groove V axis groove 8 dish mother q prisoner curtain 108

Claims (1)

[Scope of Claims] 1. By screwing and connecting a connecting device with upper and lower screw shaft portions to the upper and lower ends of the screwing portion of an extruded shape having an integrally extruded screwing portion, the connecting device can be attached. A plurality of extruded shapes are connected vertically through the medium, and the extruded shape at the upper end is connected to an extruded shape support attached to the lower part of the conductive conveying body.
1. A method for suspending extruded shapes for surface treatment, which comprises suspending a plurality of extruded shapes from individual supports. 2. The surface treatment according to claim 1, wherein the extruded shape support attached to the lower part of the electrically conductive carrier has a helical shaft, and the upper end extruded shape is threadedly connected to the helical shaft. How to hang extruded shapes. 3. The method for suspending an extruded shape for surface treatment according to claim 1, wherein the upper end extruded shape is a dummy material to be discarded.