JP2002115819A - Burner tip for shaping bottle-mouth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a burner tip, in which the lower ram in the mouth of a very light weight glass bottle is hardly clouded in working of burning the bottle mouth. SOLUTION: The lower part of the inside wall of a burner holder is not funneled, and the axis of a through hole in a secondary screen is made parallel with the axial center of the burner hole. Thus, the flame is made vertical to act efficiently on the top surface, lip part, step part in the inside of the mouth, and those parts are uniformly mirror-finished. Further, the vertical flame acts hardly on the lower ram to prevent the parts from becoming cloudy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called burner apparatus for so-called toasting, which is used to mirror-finish the top surface of a molded glass bottle at the final stage of the glass bottle manufacturing process. The present invention relates to a burner tip for shaping a bottle opening to be attached to a nosepiece.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory sectional view of a conventional burner chip 11. As shown in FIG. The burner chip 11 has a disc-shaped primary screen 13 and a secondary screen 14 provided in a cylindrical burner holder 12. The lower part of the inner wall of the burner holder 12 is formed to spread downward, and the primary screen 1 is formed.
A plurality of through holes 15 are provided in 3, and a plurality of through holes 16 are provided in the secondary screen 14. The screen 14 on the secondary side has a large thickness, and the plurality of through-holes 16 are oblique holes that extend outward at the bottom. Therefore, the flame F radiated from the burner tip 11 becomes a diffusion flame that spreads outward and outward. The inner diameter a 'of the burner holder 12 is slightly smaller than the outer diameter b of the mouth of the bottle 20, but because of the diffusion flame, the bottle is supplied at a position slightly shifted left and right below the burner tip. Also has the feature that the flame acts on the mouth of the bottle.

[0003]

In recent years, the demand for thin ultra-light glass bottles has been increasing from the viewpoint of efficient use of resources. Such ultra-light glass bottles are coated with tin oxide as a main component (so-called hot end coating) on the entire outer surface including the vicinity of the mouth in order to maintain bottle strength. Since the conventional burner chip is a diffusion flame as described above, the flame often hits the top surface 21 and the lip portion 22 of the bottle. However, the flame hardly hits the step portion 24 in the mouth of the bottle. The amount is increased so that the step in the mouth also has a sufficient mirror finish. However, when this burner chip is used for an ultra-light bottle, the diffusion flame excessively acts on the rash 23, and the tin oxide coated on the mist forms a cloudy state, and the rash 2
3 is colored white. Such glass bottles
There is a problem that the mouth looks dirty and cannot be sold as a product, resulting in a defective product.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a burner tip shaping burner chip in which primary and secondary screens having a plurality of through holes are provided in a cylindrical burner holder. A burner tip for shaping a bottle opening, wherein a lower portion is not spread downward, and an axis of a through-hole of the secondary screen is parallel to an axis of a burner holder.

In the burner chip of the present invention, the lower part of the inner wall of the burner holder does not spread downward, and the axis of the through hole of the screen is parallel to the axis of the burner holder, so that the flame is radiated vertically. A vertical flame, which efficiently acts on the top surface 21, lip portion 22, and step portion 24 in the mouth, and these portions are uniformly mirror-finished. Therefore, it is not necessary to supply the gas excessively. Further, since the flame is a vertical flame, the flame does not easily act on the rash, and the turbidity of the rash can be prevented.

If the inner diameter of the burner holder is slightly larger than the outer diameter of the mouth of the bottle (preferably 3 to 7 mm), even if the bottle is supplied to a position slightly shifted left and right below the burner tip, the flame is not emitted. It can act on the entire mouth of the bottle.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. Figure 1 shows a burner chip 1
FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, FIG. 3 is an explanatory view of the burner chip 1, and FIG. Is shown.

The burner chip 1 is a cylindrical burner holder 2
Inside, a disk-shaped primary screen 3 and a secondary screen 4 are provided. The primary screen 3 and the secondary screen 4 are connected by a columnar connecting portion 7 at the center, and are integrally formed. The lower part of the inner wall of the burner holder 2 does not spread downward, and the inner wall is formed vertically. The primary screen 3 has a plurality of through holes 5, and the secondary screen 4 has a plurality of through holes 6.
The axial center of each of these through holes 15 and 16 is parallel to the axial center of the burner holder. For this reason, the flame F radiated from the burner chip 1 becomes a vertical flame as shown in FIG. 2 and efficiently acts on the top surface 21, lip portion 22, and step portion 24 in the bottle. Hard to work,
Clouding of the rash can be prevented.

The inner diameter a of the burner chip 1 is 32 mm, the outer diameter b of the bottle mouth (lip) is 26.7 mm, and a-b is 5.3 mm. Therefore, even when the bottle is supplied at a position slightly shifted left and right below the burner chip, the flame can be applied to the entire opening of the bottle. a-b
Is smaller than 3 mm, if the bottle is supplied at a position slightly shifted left and right below the burner tip, there is a possibility that a portion where the flame does not work sufficiently may be generated.
If it is larger than this, the burner head becomes thicker, and the pitch of the vials in the direction perpendicular to the flow direction of the vials carried into the annealer of the vial forming line (width direction) increases. descend.

The burner chip 1 is mounted on a burner head 8, for example, as shown in FIG. The burner head 8 has an elongated and substantially rectangular parallelepiped shape, and a gas pipe 9 for supplying a mixed gas is connected to an upper portion thereof, and five burner chips 1 are provided on a lower surface thereof.
The inside is a mixed gas chamber 10. The burner head 8 is installed on the upstream side of the annealing furnace conveyor of the glass bottle forming line, emits a flame toward the mouth of the glass bottle 20 flowing on the annealing furnace conveyor, and the top surface 2 of the mouth.
1. The lip portion 22 and the step portion 24 in the mouth are mirror-finished.

[0011]

The burner tip of the present invention is a vertical flame in which the flame is radiated vertically, acts efficiently on the top surface of the bottle, the lip portion and the step portion in the mouth, and uniformly mirror-polishes these portions. Can be. For this reason, it is not necessary to supply gas excessively, and the amount of gas used can be reduced. Further, since the flame is a vertical flame, the flame does not easily act on the head portion, and it is possible to prevent the head portion of the ultralight bottle from becoming cloudy.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a burner head 8 on which a burner chip 1 is mounted.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is an explanatory view of the burner chip 1, showing a plan view in the upper part, a central cross-sectional view in the interruption, and a bottom view in the lower part.

FIG. 4 is an explanatory sectional view of a conventional burner chip 11;

FIG. 5 is an explanatory diagram of a mouth of a bottle 20.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Burner chip 2 Burner holder 3 Primary screen 4 Secondary screen 5 Through hole 6 Through hole 7 Connection part 8 Burner head 9 Gas pipe 10 Mixed gas chamber 11 Burner chip 12 Burner holder 13 Primary screen 14 Secondary screen 15 Penetration Hole 16 through-hole 20 bottle 21 top surface 22 lip portion 23 helmet portion 24 step portion in mouth

Claims (3)

[Claims] A primary screen and a secondary screen having a plurality of through holes in a cylindrical burner holder.
The lower part of the inner wall of the burner holder 2 is not spread downward, and the axis of the through hole 6 of the secondary screen 4 is
Burner tip for bottle shaping characterized by being parallel to the axis of 2. The burner tip according to claim 1, wherein the inner diameter of the burner holder 2 is slightly larger than the outer diameter of the mouth of the bottle 20. 3. The burner chip according to claim 2, wherein the inner diameter of the burner holder 2 is larger than the outer diameter of the mouth of the bottle 20 by three.
A burner tip for bottle opening shaping characterized by being 7 mm larger