JPS62134409A - Manufacture of gas burner - Google Patents

Abstract

PURPOSE:To facilitate manufacture of a burner by a method wherein two grooves are formed at right and left symmetrical positions of a central bent part, respectively, and each of these grooves and the central bent part are bent back to form the burner. CONSTITUTION:A first groove 3 for forming a gas introducing part, a second groove 4 for forming flame holes and concave and convex portions 5a-5c for flame holes are punched out in a metallic plate 1 and then press formed. Upon completion of pressing of this member, the member is bent at the central bent part 2 into two portions and then the abutting portions are spot welded. Mixture gas is passed through a flue gas feeding passage 7 and a flame is generated at flame holes 9 from a flow regulator part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION (Hereinafter, the field of application, prior art, etc.) The present invention relates to a method of manufacturing a gas burner for, for example, a water heater or a bath. Traditionally, overhang burners have been manufactured by making the burner body from two press-formed metal plates, inserting a specially manufactured inner plate and a rectifier plate into the burner body, and inserting these and the body. The burner was manufactured by welding the two faces together.

In this manufacturing method, an inner plate and a rectifying section are specially made, and the entire process is complicated, which ultimately leads to an increase in costs. The present invention is configured such that the inner plate, rectifier, etc. for maintaining the performance of the burner are manufactured as separate parts and are not welded to the burner body, but are all manufactured from a single piece of metal. This is intended to greatly simplify production.

The details of the figure are as follows.

(Hereinafter, the structure and operation of the invention) Figures 1 to 3 show that one metal plate l is formed by the first step.
It is a figure which shows the state which press-molded.

In the figure, reference numeral 2 denotes a central bent portion, and 3. In winter, first grooves for forming a fuel gas introduction portion are sequentially provided at appropriate intervals at symmetrical positions of the central bent portion 2. 3 and the second groove groove for flame hole formation. 5a is a flame hole unevenness provided between the first groove 3 and the second groove 4, and 5b and 5C are a flame hole unevenness 5b and a fuel introduction path provided on the outside of the second groove. This is the unevenness 5C for use. Further, reference numeral 6 denotes a rectifying portion forming bent portion provided between the central bent portion 2 and the first groove 3.

In the first step, each of the above elements is pressed and molded. FIG. 1 shows the second step, in which the metal plate pressed in the first step is pressed, leaving the bent part 6 for forming the rectifying part.
This shows a state in which the central bent portion 2 and the second groove 4 are pressed upwardly, and the first groove 3 is pressed downwardly. After completing this second step, spot welding is performed at the required locations to complete the burner. As shown in FIG. 5, the completed burner has a fuel gas introduction passage 7, a rectification part 8, and a flame hole part 9 formed therein. It flows uniformly through the flame hole portion 9 and generates a flame at the flame hole portion 9.

(Effects of the invention below) As described above, the invention creates two grooves each at symmetrical positions on the central bent portion, and bends each of these grooves 116 and the central bent portion to create a burner. I did it like this,
In addition to making the burner easier to manufacture, it is usually very difficult to form a rectifying part in this type of burner, but by providing such a rectifying part between the central bent part and the first groove. is possible,
This has the advantage that the burner can be manufactured without a special rectifier being attached to the manufacturing process, and the manufacturing of the burner is greatly simplified.

[Brief explanation of drawings]

Figures 1, 2, and 3 (5) and (B) are a plan view, perspective view, and X-X respectively showing the plate after pressing in the first step.
4 is a perspective view illustrating the press in the second step, and FIG. 5 is a partially cutaway perspective view showing the completed burner. Reference numeral 1: metal plate, 2: central bent portion, 3: first groove, 4: second groove, 5a, 5b, 5C: unevenness, 6: rectification 7... Fuel gas introduction path, 8... Rectifying part, 9... Flame hole part.

Claims (1)

[Claims] A first groove for forming a fuel gas introduction part and a second groove for forming a flame hole are formed in order at appropriate intervals at symmetrical positions of the central bent part, and Further, the central fold is formed between the grooves and the second groove to form unevenness for the flame hole, and on the outside of the second groove, unevenness for the flame hole and unevenness for the fuel introduction path are formed. After pressing a metal plate so as to form a bent part for forming a rectifying part between the bent part and the first groove, the bent part for forming a rectifying part is left, and the central bent part and the above-mentioned A method for manufacturing a gas burner, which comprises pressing the second groove so that it is convex upward and the first groove convex downward, and then spot welding at required locations.