JPH05221661A - Baffle mechanism - Google Patents

Abstract

PURPOSE:To provide a baffle mechanism in which the number of formed products can be improved per unit time without damaging the appearance at the base of the formed glass bottle. CONSTITUTION:A valve element 3 equipped with a passage for settling blow air in the interior of a baffle body 1 is installed so as to enable free lifting and lowering. A sliding surface 6 between the valve element 3 and the baffle body 1 is located on the outside of a shape end 7 of a blank mold 2. When the valve element 3 is lowered, the line of the sliding surface 6 is prevented from entering a parison.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baffle mechanism for a blow and blow process of an IS type glass molding machine.

[0002]

2. Description of the Related Art In the blow-and-blow process of an IS type glass molding machine, as is well known in the industry, after a gob is put into a rough mold, the baffle mechanism closes the upper end of the rough mold to settle blow air from the baffle. Is ejected to press the gob toward the lower side of the rough mold, and then a counter blow is inserted from the lower side to blow-mold the parison.

When this counter blow enters, it is necessary to close the passage of the settle blow air to prevent glass from entering the inside. In the conventional blow-and-blow process, this problem has been solved by using a funnel for throwing the gob into the rough mold. In other words, the settle blow secures the passage of the settle blow air by using the funnel by applying the baffle from above the funnel, then remove the funnel before the counter blow enters and the baffle of the rough type directly. By making close contact with the upper surface, the passage of settle blow air formed on the close contact surface with the rough mold is closed. However, with this method, it is necessary to remove the funnel between the settling blow and the counter blow and then lower the baffle again, and there is a waste of time during this time, so there is a limit to the improvement in the number of moldings per unit time. ..

Therefore, recently, a method of directly inserting a gob into a rough mold without using a funnel has been developed. In this case, since the baffle directly adheres to the rough mold, it is not possible to adopt the method of forming the settle blow air passage on the contact surface with the funnel as described above. Baffles need to be used.

The baffle shown in FIG. 5 is called a built-in baffle developed by Emhart, Inc. of the United States, and has a baffle body 21 provided with a valve body 22 which can be moved up and down. This built-in baffle lowers the valve body 22 to the position indicated by the alternate long and short dash line when performing settle blow and opens the settle blow air passage 23, and raises the valve body 22 to the position indicated by the solid line during counter blow. The settle blow air passage (23) is closed, and a smooth baffle inner surface shape required for parison molding is formed.

However, although this built-in baffle contributes to the improvement of the number of moldings per unit time, the line of the slide surface 24 between the baffle body 21 and the valve body 22 remains on the surface of the parison, so that the molded glass bottle has There is a problem that the bottom surface becomes difficult to see. Although this line has no problem in terms of quality, it was unfavorable in Japan, where the appearance of products is severe. In addition, in a certain type of inspection machine, there was a problem that this line was an obstacle and a sufficient automatic inspection could not be performed.

[0007]

DISCLOSURE OF THE INVENTION The present invention can solve the above-mentioned conventional problems, improve the number of moldings per unit time, and impair the appearance of the bottom surface of a molded glass bottle. It was perfected to provide no baffle mechanism.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a valve body provided with a settle blow air passage inside a baffle body so that the valve body can be moved up and down. The sliding surface between the baffle body and the baffle body is located outside the rough shaped end.

[0009]

The present invention will be described in more detail with reference to the embodiments shown in the drawings. 1 and 2 show a first embodiment of the present invention, in which 1 is a baffle body, 2 is a rough mold, and 3 is a valve body provided inside the baffle body 1 so as to be able to move up and down. The valve body 3 is composed of an upper small diameter portion 4 and a lower large diameter portion 5,
The outer peripheral surface of the large diameter portion 5 serves as a slide surface 6 between the valve body 3 and the baffle body. The slide surface 6 is located outside the shape end 7 of the rough mold 2.

The valve body 3 is constantly pulled upward as shown in FIG. 1 by a spring 8 provided in the upper small diameter portion 4, and the settle blow air is settle blow air provided inside the valve body 3. Is blown into the rough mold 2 through the passage 9, the passage 10 provided inside the baffle body 1, and the passage 11 provided at the outer peripheral portion of the large diameter portion 5 of the valve body 3.

However, when the valve body 3 is forcibly pushed down as shown in FIG. 2 during counter blow, these passages 9, 1
0 and 11 are blocked, and the parison is molded without the glass flowing outside the shape end 7 of the rough mold 2.
Therefore, the line of the slide surface 6 between the valve body 3 and the baffle body 1 does not enter the molded parison.

In the second embodiment of the present invention shown in FIGS. 3 and 4, the upper portion of the valve body 3 is held by the holder 12, and the spring 13 is provided between the lower surface of the holder 12 and the baffle body 1. It is provided. Also in this embodiment, the sliding surface 6 between the valve body 3 and the baffle body has the shape end 7 of the rough mold 2.
It is located outside. Therefore, when the valve body 3 is lifted by the holder 12 as shown in FIG. 3, the counter blow is introduced into the rough mold 2 through the settling air passage 9 provided inside the valve body 3. As shown in FIG. 4, when the holder 12 depresses the valve body 3 against the spring 13, these passages are blocked,
The line of the slide surface 6 between the valve body 3 and the baffle body 1 does not enter the molded parison.

[0013]

As described above, according to the baffle mechanism of the present invention, like the conventional built-in baffle, it is possible to switch the parison molding by introducing the settle blow air and the counter blow simply by moving the valve body 3 up and down. Therefore, the number of moldings per unit time can be increased as compared with the conventional one using the funnel. Moreover, according to the baffle mechanism of the present invention, the slide surface 6 between the valve body 3 and the baffle body 1 is formed on the parison formed.
There is an advantage that the appearance of the bottom surface of the molded glass bottle is not impaired because the line of No. does not enter. Therefore, the present invention greatly contributes to the industry by solving the conventional problems.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention in a settle blow state.

FIG. 2 is a cross-sectional view showing a first embodiment of the present invention in a counter blow state.

FIG. 3 is a sectional view showing a second embodiment of the present invention in a settle blow state.

FIG. 4 is a cross-sectional view showing a second embodiment of the present invention in a counter blow state.

FIG. 5 is a cross-sectional view showing a conventional built-in baffle.

[Explanation of symbols]

 1 Baffle body 2 Coarse type 3 Valve body 6 Sliding surface 7 Shaped end

Claims (1)

[Claims] 1. A baffle body is provided with a valve body provided with a passage for settle blow air so as to be able to move up and down, and a sliding surface between the valve body and the baffle body is outside the rough shaped end portion. A baffle mechanism characterized by being located at.