JPS6015021A - Improvement in treatment of sheet material - 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 The present invention relates to a method and apparatus for use in the production of cladding materials, particularly continuous strip roofing materials from sheet metal.

It is known to form continuous strips of roofing material from sheet materials, such as metals, and currently known methods and apparatus allow the sheet material to be formed into a single profile.
) and one or more steps, so that the resulting strip-like product gives the impression of multiple independent tiles or cladding sections. .

To date, for example, an upper die member having a body portion and a downwardly directed step, and a lower die member having a body portion substantially corresponding to the body portion of the upper die member having this downwardly directed step. known to be used. In operation of the apparatus, at least one mold member is moved toward the other over a sheet of material passing between the mold members, thereby forming a main tile and a step in the sheet material. This continues until a predetermined or desired number of tile sections and steps are formed, at which point the material is cut or guillotined into the desired length or number of tiles.

One of the problems to date has been that as the upper mold member moves downwardly toward the lower mold member, the shoulder of the upper mold member contacts the sheet material before the main part of the previous mold member does. That's true. This results in pushing and pulling of the material, reducing the efficiency of the method and apparatus and creating aesthetic problems with the appearance of the steps or folds of material.

The present invention overcomes or at least minimizes this problem.

Other objects of the invention will become apparent from the description below.

According to one aspect of the invention, it comprises at least two mold members; the first mold member comprises one body portion and one downwardly directed step; the second mold member comprises a second mold member; a body portion having a surface located substantially diagonal to a body portion surface of the first mold member; attached to and extending from the body of the first mold member; Apparatus for forming one or more steps in sheet material, including a template which is forced away from the body force of the template member. is provided,
Ru.

The invention will now be described with reference to the accompanying drawings. Although the description is given by way of example only and with reference to the accompanying drawings, it is to be understood that variations and modifications may be made without departing from the scope or spirit of the invention.

Until now, methods and apparatuses have been disclosed and claimed in New Sealant Patent No. 183404.

It is known to form tiers in sheet material by 75; This patent specification has a cross-sectional shape (
prof 1led) is disclosed to form terraces in sheet material. However, the present invention is utilized to form steps in sheet material, even if the sheet material is substantially flat (e.g., has already been given a cross-sectional shape by a roll former). ) It should be understood that it may be a preformed sheet material or at least partially a preformed sheet material by means of a roll former. In the case of already tray-formed material that has been given the desired cross-sectional shape by a roll former, the mold member of the present invention can be used to complete or finish the shape and structure.

Referring to FIG. 1, this figure shows the first and second mold members 5
．． Fig. 6 shows a general arrangement known in principle up to now, including Fig. 6; The first mold member 5 is the upper mold member and includes one body portion 7 and a downwardly extending step 8. The second mold member 6 includes at least one body portion 9 which substantially corresponds in length and dimensions to the body portion of the first mold member 5 and which faces the ribs. It is well located.

If desired, the downward step 10 can be placed in the second. mold member 6
It is also possible to combine or cooperate with the main body 9 of.

In use, the sheet material 1 previously passing through the mold part 5.6 is moved towards the other mold part 6, having one or more steps formed therein formed by the first mold part 5. . For example, the first mold member 5 can be hydraulically operated to move downwardly towards the fixed second mold member 6.

Preferably, the proximal surface of at least the main body portion 7.9 of the mold member 5, B, and preferably the other surface in contact with the sheet material, is also suitably shaped so as to have a cross-sectional shape or a desired shape and structure. being done. If desired, it can also be coated with a suitable material such as urethane. Thus, in use, the first mold member 5 moves towards the second mold member 6 and the downward direction of the first mold member 5 is removed. The lower side of the step 8 first comes into contact with the sheet material 1 and is thereby pressed downwards to form a step.

Subsequently, due to the structure and molding action of the first mold member 5, the lower surface 7a of the main body 7 of the first mold member 5 is transferred to both mold members 5.
．． 6 and presses against it (or forms or finishes it).

The problem that has been found so far is that the downward step 8 comes into contact with the sheet material 1 before the main body portion 7 of the molded member 5 [2, as pointed out earlier, when the step is formed, there is no material in that position. This means that because 1 is not supported at all, a mutual pull or push can occur.

Therefore, as can be seen with reference to the drawings, the present invention provides an arrangement and apparatus comprising two mold members, including one main body portion 7 and a first mold member 5 having a downward step or extension portion 8. I will provide a. There is a second mold member 6 comprising at least one body portion 9 located opposite and preferably matching in size to the body portion of the first mold member. If desired, one downward step or mold member 10 can be coupled to or co-operate with the stiffness of the body portion of a second mold member.

The body part 7 has one template 2° connected thereto;
This template 20 has a cross-sectional shape stilted on its underside, which cross-sectional shape corresponds to the desired shape and structure of the cross-sectional shape to be formed in the sheet material 1.

The mold plate 20 is slidably disposed around at least two elongate shafts 21 that extend from and through the lower surface 7a of the body portion 7 of the first mold member 50. .

A suitable spring 22 extends around the axis 21 and thus between the lower side of the body part 7 and the upper side 20a of the template 20.

The spring 22 is normally biased to urge the mold plate 2° outwardly away from the lower surface 7a of the body portion 7 of the first mold member 5.

Preferably, the mold plate 20 is pushed downward so that it is located slightly below the lower surface 8a of the downward step 8 of the first mold member 5 under normal conditions. Preferably the lower surface 2 of the template 20
Q b is the lower part or lower surface 8 of the step 8 of the upper mold member
It extends below a.

In order to position the template 20 relative to the body part 7 of the first mold member 5, an elongated hole 26 is formed in the body part Z and a bolt or similar support shaft 21 can be slid therein. It is positioned and extends downwardly for attachment to template 20 by any suitable means such as adhesive, bolts, or the like.

As shown, at least one spring 22 is provided extending around each shaft 21 and abutting against the upper surface 20a of the template 20, and a recess in the hole 26 for positioning the mounting shaft 21. It extends upwardly to be received within 25. Instead of doing this, it may be abutted against the lower surface 7a of the main body portion 7 of the first mold member 5.

In use, a plurality of such shafts 21 connect the mold plate to the body portion 7 of the first mold member 5.

Further referring to the drawings, when the sheet material 1 is placed between the first and second mold members 5.6 and the upper mold member 5 is biased, the first σ mold member 5 is It moves downwards towards the second mold member 6.

The template 20 therefore comes into contact with the sheet 4'=1 material 1 before any other part of the first mold part 5 (including the downward step 8). Thus, during use, the template 20, which has taken up the downwardly biased spring, comes into contact with the upper surface of the notebook material 1 and holds the sheet material 1 there before the downwardly extending step 8 comes into contact with the sheet material 1. Alternatively, it can be grasped and then moved downward, continuing the movement to form a step in the material 1.

Thus, in use, the downwardly spring-biased template 20 holds the sheet material 1 in position and acts as a gripping plate while the steps are being formed in the material.

This avoids the problems of the prior art which are due in large part to the fact that the sheet stock is not held in position during corrugation.

As soon as the step is formed and the appropriate control means are energized, the first mold member 5 moves upwardly and away from the second mold member 6 so that the spring biasing and the mold plate 20 ensure that it is fully sheet material 1 until it separates from the surface of lrA material 1.
hold in that position.

The lower part or lower surface 20b of the template 20 is preferably given a cross-sectional shape that matches the desired shape and structure so that the sheet material 1 can be formed or finished molded into the desired shape and structure and general cross-sectional shape. ing.

It can also be coated with a suitable material of urethane if desired.

It should be understood that the above description is by way of example only, and that modifications and improvements may be made without departing from the spirit of the scope of the invention.

[Brief explanation of drawings]

FIG. 1 represents an arrangement incorporating the invention. FIG. 2 is a side view of an apparatus according to one form of the invention. FIG. 6 is another side view of an apparatus according to one form of the invention. 5...First mold member 6...Second mold member 7...Body portion 8...Step part 9.
...Body part 20 ... Template 21 ...
...Axis 22 ...Spring 25 ...Recess 26 ... Hole Patent Applicant No. 1 Douglas (Asia) Limited Procedural Amendment (Method) Showa f/Nengo Konamasegan No. 7.2 j //J issue sheet'
;F Ohto/) Processing 1-O11βchitenwo6, Relationship with the case of the person making the amendment Applicant's address: 1,000 years Han7-・f'7''y person・(Asian・εε
Te/vi 4, agent

Claims (1)

Claims: 1. An apparatus for forming one or more steps in sheet material, comprising at least two mold members; the first mold member having a body portion and 1. the second mold member includes a body portion having a surface located substantially opposite the body portion surface of the first mold member; Said apparatus for holding a mold plate attached to the body of the mold part and spring biased to extend and drive away from the body of said first mold part. 2. In the device described in claim 1,
The apparatus wherein the template is coupled to the underside of the body of the first mold member by an elongated shaft extending from the body of the first mold member. 6. In the device according to claim 1 or 2, a spring member is attached around the shaft and the main body is configured to push the template away from the underside of the first template member. and the upper surface of the template; 4. In the apparatus set forth in any one of claims 1 to 6, the template is located between at least the upper surface of the template. Said device, wherein the surface is located below the lower surface of the step of the first mold member.