JPH04213686A - Mold and its manufacture method - Google Patents

Abstract

PURPOSE:To acquire a mold and its manufacturing method of compensating dimensional error caused during its process and providing good finishing and appearance thereof. CONSTITUTION:Longitudinal abutting end surface portions 16, 18 of curved mold component pieces 12, 14 are arranged to abut each other. An intervening piece 22 extending along the longitudinal direction and a connecting member 20, which is formed along the longitudinal direction on both sides of at least one end edge portion of the intervening piece 22 and equipped with a connecting piece 24 formed in a width more than the processing error of the abutting end surface portions 16, 18 of said mold component pieces 12, 14 are provided on the abutting portion. The intervening piece 22 of said connecting member 20 is interposed between the mutually opposing abutting end surface portions 16, 18 of said mold component pieces 12, 14. The abutting end surface portions 16, 18 of said mold component pieces 12, 14 are secured to the connecting piece 24 of said connecting member 20 across the whole length.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bent shape and a method for manufacturing the shape, which are used as building materials in buildings and the like.

0002

[Prior Art] Conventionally, among the shapes assembled by bending, those with a large width in the radial direction cannot be bent in their original state. After cutting along the longitudinal direction and bending each cut member, both cut portions were butted and welded to form an arc-shaped member.

[0003] When cutting the shape material at the center,
A cutting allowance is required to be removed by the cutter, so in order to make the original width after joining, use two equal pieces, and cut away the outer side of one from the center cutting line. The other was cut with a cutting allowance on the inside, and then the cut pieces without the cutting allowance were butted together and welded.

Furthermore, as disclosed in Japanese Patent Application Laid-Open No. 62-288282, two molded materials are molded separately and subjected to bending, and then these molded materials are butted together and the abutted portions are formed. In some cases, a connecting member is attached along the longitudinal direction, and the connecting member is finally caulked to secure the connection.

[0005]

[Problem to be Solved by the Invention] In the former case of the above-mentioned conventional technology, one curved shape material is formed from two equal shape materials, and the part of the shape material from which the cutting allowance of the cutter has been taken is discarded. , there was a problem that there was a lot of wasted material. Furthermore, it is extremely difficult to correct and absorb processing errors during division with a cutter, bending errors during bending, etc. in subsequent welding operations, and there is also the problem that processing errors also affect the finished welding process.

[0006] In the latter case of the above conventional technology, if there is a processing error such as bending on the abutting surfaces of the shapes that are butted against each other, a gap may be created in the butt portion, resulting in a situation where caulking cannot be performed. However, there is a problem in that the caulked shape material suffers local stress and distortion due to errors, making it impossible to obtain a shape material that is accurately and neatly curved.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and provides a mold material and a mold material that do not waste material, compensate for errors during machining, have a well-finished mold material, and have a good appearance. The purpose of this invention is to provide a method for manufacturing mold materials.

[0008]

[Means for Solving the Problems] The present invention abuts abutting end face portions of curved profile members in the longitudinal direction, and includes an intervening piece extending along the longitudinal direction between the abutting portions, and an intervening piece extending along the longitudinal direction between the abutting portions. Connecting members are provided on both sides of at least one end edge of the piece along the longitudinal direction and have connecting pieces formed to have a width greater than the machining error of the abutting ends of the shape material constituent pieces, and the shape material A shape material formed by interposing an intervening piece of the connecting member between opposing abutting end surfaces of the component pieces, and abutting and fixing each abutting end surface portion of the shape material component piece to the connecting piece of the connecting member over the entire length. It is.

[0009] Further, in the present invention, a straight extrusion-molded shape material is cut and divided in its longitudinal direction, each of the divided shape material constituent pieces is curved, and then the cut surface of the curved shape material constituent pieces is and an intervening piece extending along the longitudinal direction between the abutting parts, and an intervening piece formed along the longitudinal direction on both sides of at least one end edge of the intervening piece, and the above-mentioned A connecting member having a connecting piece formed to have a width greater than the machining error of the abutting ends of the shape component pieces is disposed, and in this case, the connecting member is interposed between the opposing abutting end surfaces of the shape component pieces. Interpose the insert,
In this method, in this state, each abutting end face portion of the shape material constituent pieces is brought into contact with the connecting piece of the connecting member over the entire length and fixed.

[0010] Further, in the present invention, each of the linearly extruded shape material constituent pieces is curved, and then the butted end surfaces of the curved shape material constituent pieces in the longitudinal direction are abutted, and a longitudinal direction is formed between the abutted parts. an interposed piece extending from the
A connecting member is disposed on both sides of at least one end edge of the intervening piece, the connecting piece having a connecting piece formed along the longitudinal direction and having a width larger than the machining error of the abutting ends of the shape material constituent pieces. At that time, the intervening piece of the connecting member is interposed between the opposing abutting end surfaces of the mold component pieces, and in this state, the butting end surfaces of the mold component pieces are connected to the connecting piece of the connecting member over the entire length. This is a method of manufacturing mold members that are fixed in contact with each other.

[0011]

[Operation] The shape material of the present invention is such that even if there is a bending error between the component pieces of the shape material, the connecting pieces of the connecting member ensure that they are fixed regardless of the error.

0012

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention. The profile 10 of this embodiment has a relatively wide expected width, and has an outer profile component 12 and an inner profile. A profile component piece 14 is provided with abutting end faces 16 and 18 facing each other in the longitudinal direction. An E-shaped connecting member 20 is inserted between the abutted end surfaces 16 and 18 along the longitudinal direction.

The connecting member 20 consists of an intervening piece 22 located at the center of the E-shape and connecting pieces 24 provided at both ends of the intervening piece 22. One of the connecting pieces 24 is used for welding and connects each shape component piece. 12 and 14 are welded and fixed.

A method of manufacturing the mold material 10 of this embodiment will be explained using FIG. 2. In this example, first, (A)
As shown, a wide linear shape material 26 is cut at the center by a cutter 28. And (B)
As shown in FIG.
Each of the shape material constituent pieces 12, 14 is curved to a predetermined curvature. Thereafter, as shown in (C), the connecting member 20 is fitted into the abutting end surfaces 16 and 18 of the profile constituent pieces 12 and 14. Here, the thickness of the intervening piece 22 of this connecting member 20 is formed to be approximately equal to the thickness of the cutter 28. and,
As shown in (D), one of the connecting pieces 24 of the connecting member 20 is melted by the welding device 30, and each abutting end face portion 16 is melted.
, 18 are welded and fixed.

According to this embodiment, one linear shape material 26 is once cut in the longitudinal direction, and each shape material component piece 12, 1 is cut.
After dividing into 4 parts and curving each part, each of the above-mentioned shape material constituent pieces 12 and 14 are brought together and welded again using the E-shaped connecting member 20, so that the curvature of the butt end face parts 16 and 18 is Even if there is some error in processing or cutting, the connecting piece 24
If the material is hidden by the material, it can be reliably welded and a curved material can be formed without any problems in terms of shape and strength. Furthermore, unlike the conventional technology, there is no waste of materials, and the finished product has high precision and strength.

Next, a second embodiment of the present invention will be described with reference to FIG. Here, descriptions of members similar to those in the above-described embodiments will be omitted.

The mold material 10 of this embodiment has a mold material component piece 12.
, 14 are formed with grooves 32 and 34 along the longitudinal direction near the abutting end surfaces 16 and 18 of the connecting member 20 in an E-shape.
A fitting piece 36 is formed on one both ends of the connecting piece 24, and the fitting piece 36 is fitted into the grooves 32 and 34 to connect them. After this, the connecting piece 2 is
Fixation is achieved by welding 4.

This embodiment also provides the same effect as the above embodiment, and since the fitting pieces 36 are fitted into the grooves 32 and 34, the positions of the respective shape material constituent pieces 12 and 14 are prevented from shifting during welding. First, it is easy to weld.

Next, a third embodiment of the present invention will be explained based on FIG. 4. Here, descriptions of members similar to those in the above-described embodiments will be omitted.

[0021] The mold material 10 of this embodiment has a mold material component piece 12.
, 14 are formed into an acute angle, and the side surface shape of the insertion piece 22 of the connecting member 20 is formed obliquely to match this.

[0022] This embodiment also provides the same effects as the above-mentioned embodiments, and since the connecting piece 24 is welded from the back side, no bulge is generated on the front side due to welding.

Next, a fourth embodiment of the present invention will be described with reference to FIG. Here, descriptions of members similar to those in the above-described embodiments will be omitted.

In the mold 10 of this embodiment, the respective mold component pieces 12 and 14 are opposed to each other via a T-shaped connecting member 20, and then the connecting pieces 24 are welded in the same manner as in the above embodiment to achieve fixation. It is something that will be done.

This embodiment also provides the same effects as the above embodiment.

[0026] Furthermore, in the mold material of the present invention, each of the mold material constituent pieces is molded separately, and after each piece is bent, a connecting member is used in the same manner as described above by the method shown below in FIG. 2(B). They may be connected and fixed together.

Furthermore, the shape material of the present invention may be provided with three or more shape material constituent pieces and connected together, and the shape of the connecting member is such that it is inserted at the abutting portion of the connecting piece and the shape material constituent piece to the extent that it compensates for machining errors. It is sufficient if there is an intervening piece that can be inserted, and its shape can be determined arbitrarily. In addition to welding, the connecting member may be fixed by screwing, and any fixing method that allows the connecting piece to absorb errors in bending may be used.

[0028]

Effects of the Invention As explained above, in the shape material of the present invention, the component pieces of the shape material are connected to each other by a connecting member having a connecting piece and an intervening piece. Even when rejoining the parts, the cutting allowance made by the cutter at the joined part can be compensated for by the intervening piece, so there is no wastage of material. Moreover, irrespective of the method used to form the shape material constituent pieces, the connecting pieces can compensate for machining errors in bending, etc., and it is possible to provide a curved shape material with good strength and appearance.

Further, according to the method for manufacturing a shape material of the present invention, a wide shape material is once divided, or each of the shape material constituent pieces formed in a divided state is curved, and then the shape material pieces having a connecting piece are curved. Since they are connected and fixed via a connecting piece, even if there are processing errors that occur during forming, cutting, or bending,
This connecting piece can compensate for the error, and it is possible to provide a curved shape with a good finish and a good appearance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a first embodiment of a profile according to the invention.

FIG. 2 is a diagram illustrating a method of manufacturing a mold material according to the first embodiment.

FIG. 3 is a longitudinal sectional view of a mold material according to a second embodiment of the invention.

FIG. 4 is a vertical cross-sectional view of a mold material according to a third embodiment of the invention.

FIG. 5 is a vertical cross-sectional view of a mold material according to a fourth embodiment of the present invention.

[Explanation of symbols]

10　Shape material 12, 14 Shape component piece 16, 18 Butt end face part 20 Connecting member 22 Interposition piece 24 Connecting piece

Claims (3)

[Claims] 1. Abutting end surfaces of curved profile members in the longitudinal direction are abutted against each other, and an intervening piece extends along the longitudinal direction between the abutting parts, and at least one end edge of the intervening piece. providing a connecting member having a connecting piece formed along the longitudinal direction on both sides of the shape member and having a width larger than the machining error of the abutting ends of the mold material constituent pieces;
The intervening piece of the connecting member is interposed between the opposing abutting end surfaces of the shape component pieces, and the connecting piece of the connecting member is in contact over the entire length of each abutting end surface of the shape component piece, and this connecting piece and each of the shape material constituent pieces are fixed. [Claim 2] A linearly extruded mold material,
It is cut and divided in the longitudinal direction, each of the divided shape material constituent pieces is curved, and then the butted end surfaces, which are the cut surfaces of the curved shaped material constituent pieces, are abutted against each other, and between the abutted parts, the longitudinal direction is an interposed piece extending along the longitudinal direction, and an interposed piece extending along the longitudinal direction on both sides of at least one end edge of the interposed piece, and formed to have a width greater than the machining error of the abutting ends of the mold component pieces. A connecting member having a connecting piece is provided along the longitudinal direction of the mold component, and at this time, the intervening piece of the connecting member is interposed between the opposing abutting end surfaces of the mold component, and in that state A method for manufacturing a shape material, characterized in that each abutting end face portion of the shape material component pieces is brought into contact with a connecting piece of the connection member over the entire length and fixed to each other. 3. The linearly extruded shape material components are each curved, and then the abutting end surfaces of the curved shape material components in the longitudinal direction are brought into abutment, and the shape material extends along the longitudinal direction between the abutted portions. and a connecting piece formed along the longitudinal direction on both sides of at least one end edge of the intervening piece and having a width greater than the machining error of the abutting ends of the shape material constituent pieces. A connecting member having the above-mentioned shape material structure is provided along the longitudinal direction of the above-mentioned shape material constituent piece, and at this time, an intervening piece of the above-mentioned connection member is interposed between the opposing butt end surfaces of the above-mentioned shape material constituent piece, and in this state, the above-mentioned shape material structure 1. A method for manufacturing a shape material, characterized in that each abutting end surface portion of each piece is brought into contact with a connecting piece of the connecting member over its entire length and fixed to each other.