JPH01270522A - Gob distributor - Google Patents

Abstract

PURPOSE:To provide the title distributor so designed that plural fixed gutters are respectively set up above the straight lines connecting the respective centers of plural olifices to the respective centers of plural molds, and the rocking angles of respective scoops are individually specified to specific values, thereby properly feeding gobs into molds without meandering. CONSTITUTION:Fixed gutters 5, 6 such as troughs or deflectors are respectively set up so as to coincide with the straight lines L1 and L2 connecting, respectively, the centers O1 and O2 of respective olifices 1 and 2 to the centers O3 and O4 of respective molds 3 and 4 when projected on a horizontal plane. Both upper and lower scoops 7 and 8 rocking under the respective olifices 1 and 2 to distribute gobs to the upper ends of the respective fixed gutters 5 and 6 are individually rocked at angles differing from each other so as to exactly coincide with the respective straight lines L1 and L2. Thus, gobs fed through the plural olifices 1, 2 are distributed, via the scoops 7, 8 and the fixed gutters 5, 6, into the plural molds 3, 4 of an IS molding machine, respectively.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a gob distribution device for distributing gobs supplied from a plurality of orifices to a plurality of molds of a double cavity or triple cavity IS type molding machine. It is.

(Prior art) A gob distributing device that sequentially supplies two or three gobs to the mold of each section of an IS type glass molding machine such as a double cavity or triple cavity using a swinging scoop was developed by Tokko Sho. Publication No. 49-34173, Special Publication No. 4
It has been known from the past, as shown in Japanese Patent No. 1-46528. In this case, there will naturally be multiple orifices, and multiple scoops simultaneously driven by the same rack and pinion mechanism will be used to simultaneously distribute multiple gobs to the upper end of each fixed trough (trough, deflector), and from the lower end of each deflector. It is well known that injection into multiple molds in the same section is performed at the same time, but as shown in Figure 5, the distance between the centers (O3) and (O□) of each orifice (1) and (2) (D) - generally 111. ．．
1m for each section mold (3),
The distance (d) between the center (03) and (Ol) in (4) varies depending on the model, but is 108.0 fl to 165.1
m, but they do not match, and the straight line (L) connecting the orifice center (0+) and the mold center (03)
l) and the straight line (LZ) connecting the orifice center (0□) and the mold center (04) are not parallel. On the other hand, since each scoop is swung by the same rank pinion until it remains parallel, its extension line (β1)
, (β2) are straight lines (+, 1), (1
It does not match ゜2). That is, the swing angle of the conventional scoop is the midpoint of the orifice center (01), (0°) (Ml)
and the midpoint (M2) of mold centers (03) and (04)
), so there is no problem in the case of a single cavity, but in the case of a double cavity or triple cavity, an unavoidable deviation occurs, and the In FIG. 5, angle A, angle B, and angle θ have different sizes.

In the case of a 10-section IS molding machine, the deviations between the straight lines (+, +) and (P1) and between the straight lines (L2) and (12) reach as much as 70 m+1 at both end sections.

Therefore, in the past, fixed gutters such as troughs and defrags were installed in straight lines (+-
The gob When the gob slides and falls inside the scoop, trough, and deflector, it snakes from side to side, which prevents a stable supply of gobs. Such problems are first recognized especially when manufacturing high-quality glassware at high speeds, and hitherto, such problems have hardly been recognized.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and causes gobs supplied from a plurality of orifices to meander from side to side into a multi-cavity mold of an IS molding machine. It was completed with the aim of creating a gob dispensing device that can accurately supply gobs without any problems.

(Means for Solving the Problems) The present invention is a gob distribution device that distributes gobs supplied from a plurality of orifices to a plurality of molds in each section of an IS molding machine, and the fixed gutter of a trough, deflector, etc. They are each placed on a straight line connecting the center of each orifice and the center of each mold when projected on a horizontal plane, and swing below each orifice to distribute gobs to the upper ends of multiple fixed troughs in each section. The upper and lower scoops are individually swung at different angles so as to accurately match the straight line.

(Example) Next, the present invention will be explained in more detail using a gob distribution device for a double cavity IS type molding machine as an example.

In Figure 1, (1) and (2) are multiple orifices of the double cavity river, (O1) and (0□) are the centers of each orifice (1) and (2), and (3) and (4) are Multiple molds in each section of IS type molding machine, (03), (
04) is the center of each mold (3) and (4).

In the present invention, a fixed gutter (5
) and (6) are straight lines (L1) and (L2) connecting the centers (0+) and (0□) of each orifice and the centers (03) and (04) of each mold when projected onto a horizontal plane.
) are placed correctly on each.

Figures 2 to 4 show the scoop (7) used in the present invention;
(8) and its drive mechanism are enlarged, and (7)
) is the lower scoop, and (8) is the upper scoop.

Each scoop (7), (8) has a respective orifice (1), (2
) has an upper end side rising vertically toward 03);
Hollow support part 00 protruding to the side of the housing (9)
, is swingably supported within αυ by a hair ring. Each scoop (7), (8) is equipped with a pinion 041.05) at its vertical upper end 02), 03) and is driven by a rack and pinion mechanism, but conventionally a single rack was used. In contrast, in the present invention, a plurality of racks 0 (to), 07) are used.

That is, inside the housing (9) there are racks 0 and 0 in two stages, upper and lower.
6), 07) are provided, the lower rack 06) meshes with the pinion 04) of the scoop (7), and the upper rank 0η meshes with the pinion 05) of the scoop (8). The end of each rank 06), θ7) is connected to the housing (
9) is protruded to the rear, and the cam roller 0 at the tip
81. α$ is individually pressed by two cams (not shown). As a result, unlike before, the upper and lower scoops (7) and (8) can now be individually set in swing angle, and each has a different swing angle so that they exactly match the straight lines (L1) and (L2) mentioned above. swung at an angle.

Note that although the above embodiments are for the case of a double cavity, the same applies to the case of a triple cavity. Further, in the above embodiment, the scoops (7) and (8) were mechanically driven by a rack and pinion mechanism, but methods for individually driving a plurality of scoops (7) and (8) include, for example, a method using a servo motor, a method using hydraulic pressure, etc. Various modifications are possible, such as a method using a cylinder and a method using a link mechanism.

(Operations and Effects) As described above, in the present invention, the centers (O1) and (O2) of each orifice, the center (03) of each mold,
The multiple scoops (7) and (8) can be swung at different angles so as to accurately match the straight lines (L1) and (L2) connecting the troughs, deflectors, etc. The fixed bridges (5) and (6) are arranged so that they exactly match the straight lines (L1) and (L2) when projected onto a horizontal plane, and each mold (3) is placed so that the gobs do not meander from side to side at all. , (4).

Therefore, according to the present invention, stable gob supply is always possible even when the molding speed is increased. In addition, in the present invention, since each scoop (7) and (8) are driven individually, the hacklash can be easily adjusted even when a rack and pinion mechanism is used, and the play of the scoops (7) and (8) is reduced. There is also the advantage that it is possible to prevent sticking. Therefore, the present invention can greatly contribute to the industry as a gob distributing device that is effective especially when glass products are mass-produced at high speed using an IS molding machine having a large number of sections.

[Brief explanation of the drawing]

The first leap is a plan view showing an embodiment of the present invention, FIG. 2 is a partially cutaway plan view of the main part, FIG. 3 is an enlarged cross-sectional view of the A-A section in FIG. 2, and FIG. FIG. 2 is a right side view, and FIG. 5 is a schematic plan view illustrating the problems of the conventional gob distribution device. (1), (2) Niorifice, (3), (4): Mold, (5), (6): Fixed bridge, (7), (8) Niscoop. (01), (0□) Niorifice center. (03), (04): Center of the mold. (L1), (L2) A straight line connecting the center of the nitrogen orifice and the center of the mold. Patent applicant Ishizuka Glass Co., Ltd.

Claims (1)

[Claims] The gobs supplied from the plurality of orifices (1) and (2) are transferred to the plurality of molds (3) in each section of the IS molding machine.
(4), fixed troughs (5), (6) such as troughs and deflectors are located at the center (O_1) of each orifice (1), (2) when projected on a horizontal plane.
, (O_2) and the center of each mold (O_3), (O
The gobs are arranged on straight lines (L_1) and (L_2) connecting the orifices (1) and (2), respectively, and swing the gob below each orifice (1) and (2) to move the gob to the plurality of fixed gutter (5) of each section.
(6) Upper and lower scoops (7), (8) distributed at the upper end
The gob distributing device is characterized in that the gob distributing device is individually swung upward and downward at different angles so as to accurately match the straight lines (L_1) and (L_2).