JPH0410188Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improvement in a molten glass distribution device.

[Conventional technology]

As shown in Japanese Patent Publication No. 49-46528, for example, a molten glass distribution device used in an IS type bottle making machine includes a cam roller provided at the end of a drive shaft equipped with a rack gear that meshes with a gear provided on a scoop. The cam follower swings around the pivot shaft when the cam follower comes into contact with the rotating cam, and includes a lever body that horizontally moves the drive shaft via the cam roller by the swinging, and scoops based on the rotation of the rotating cam. There is one that distributes and supplies gobs (molten glass gobs) to a plurality of device sections by rotating the gob by a predetermined angle.

[Problem that the invention attempts to solve]

By the way, for production planning and maintenance reasons, the IS type bottle making machine is operated in a so-called section-down state, for example by changing a 10-section machine to an 8-section machine, or changing an 8-section machine to a 6-section machine. In conventional molten glass dispensing equipment, for example, by replacing a 10-section rotary cam (with 10 ropes) with an 8-section rotary cam (with 8 ropes). , I was dealing with the section down above.

However, the weight of the rotating cam is approximately 30 kg, and since such a heavy rotating cam is installed in an oil bath at the top of the molten glass distribution device, handling it is very troublesome and requires replacement work. This was not only dangerous but also took a considerable amount of time.

The present invention has been made with the above-mentioned considerations in mind, and its purpose is to provide a molten glass dispensing device that can safely and easily handle section changes.

[Means for solving problems]

In order to achieve the above object, in the present invention, a cam roller is provided at the end of the drive shaft equipped with a rack gear that meshes with the gear provided on the scoop, and the cam follower contacts the rotating cam to rotate around the pivot shaft. In a molten glass distribution device comprising a lever body that rotates and horizontally moves the drive shaft via the cam roller by this rotation, the rotary cams are arranged parallel to one rotational shaft at appropriate intervals. A cam follower guide groove having a plurality of ropes is formed on one of the rotating cams, and a rope formed on the one rotating cam is formed on the outer periphery of the other rotating cam. forms a cam follower abutting surface with a plurality of different ropes, and furthermore, the cam follower is detachably held on the lever body via a cam follower bracket, and the cam follower is attached to the two rotating cams. It is configured to abut on either one.

[Effect]

According to the above-described characteristic configuration, by simply reversing the cam follower bracket and attaching it to the lever body, the rotating cam to which the cam follower should come into contact can be selected, and the section can be easily changed.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, reference numerals 1 and 1 are scoops having the same structure and rotatably held on a jacket 2,
As shown in FIG. 2, the scoops 1, 1 are made up of an upper funnel-shaped body 3, 3 and an arcuate cylinder body 4, 4 connected below the funnel-shaped body 3, and are scooped into an appropriate size from a feeder ball (not shown). The structure is such that the two gobs that are formed and fall fall into a fixed chute on the side of the device section (not shown). 5, 5 is a funnel-shaped body 3, 3
This is a gear provided approximately on the outside of the center in the vertical direction.

Reference numeral 6 denotes a cylindrical housing, in which a slidingly held drive shaft 7 is installed horizontally. A rack gear 8 that meshes with the gears 5, 5 is formed at one end of the drive shaft 7 (right side in FIG. 1), and a cam roller 10 is provided at the other end via a roller bracket 9. be. Although not shown, an air spring is provided on the right side of the drive shaft 7 and can be operated as needed.

Reference numeral 12 denotes a lever body that rotates around a pivot shaft 13, and a roller guide groove 14 is formed in a portion away from the pivot shaft 13 so that the cam roller 10 can freely move therein. 14a is an inner circumferential surface that comes into contact with the cam roller 10. This lever body 12 has two
A cam follower 15 that comes into contact with one of the rotating cams 23 and 24 is detachably provided.

That is, as shown in FIGS. 3 to 5, the cam follower bracket 16 is formed by forming bosses 16B and 16C having the same outer diameter on both sides of a rectangular plate-like member 16A, and a lock nut. 1
A cam follower 15 is pivotally attached to one end of a shaft 18 fixed by a shaft 7 . And lever body 1
A through hole 19 for fitting the bosses 16B and 16C is provided at a substantially intermediate position between the pivot shaft 13 and the roller guide groove 14 of No. 2. By inserting either one of them, the cam follower 15 is detachably attached to the lever body 12.

Note that 16D is a recess formed on the boss 16B side;
20 is a seating surface formed on the upper surface of the lever body 12 for inserting the cam fluoro bracket 16, 21... is a set screw for fixing the cam fluoro bracket 16 in a predetermined position, and 22... is a lever body 12 This is a reinforcing rib that stands upright on the top surface.

Reference numerals 23 and 24 denote rotary cams fixed in parallel to each other at appropriate intervals on one rotary shaft 25, for example, a lower rotary cam 23 (for example, for a 10-section machine) and an upper rotary cam 24 (for example, for an 8-section machine). machine) in parallel with each other via the boss 26,
It is fixed to the rotating shaft 25 with fixing bolts 27, 27.

A cam follower guide groove 29 with 10 ropes is formed on the upper surface of the lower rotating cam 23, and a cam follower contact surface 30 with 8 ropes is formed on the outer peripheral surface of the upper rotating cam 24. is formed, and the boss 16 of the cam fluoro bracket 16
When C is inserted into the through hole 19 of the lever body 12, the cam follower 15 is located below the lever body 12, as shown in FIGS. It fits into the cam follower guide groove 29, and on the other hand, the boss 16B of the cam follower bracket 16 is inserted into the lever body 12.
When the cam follower 15 is inserted into the through hole 19 of the rotary cam 24, as shown in FIG.
The cam follower 15 is in contact with the rotating cam 23 or 24 in either case.

The rotating shaft 25 is rotated by a predetermined angle in a predetermined direction by a drive device (not shown).

In the molten glass distribution apparatus having the above configuration, as shown in FIGS. 3 and 4, the cam follower 15 is located below the lever body 12, and this cam follower 15 is connected to the cam follower guide groove of the rotating cam 23 below. When set within 29, the molten glass distribution device functions as a 10 section machine. Incidentally, at this time, the air spring is kept in a non-operating state with respect to the drive shaft 7.

Due to production planning, etc., when using it as an 8-section machine, the set screw 21...
Remove the cam follower bracket 16 and attach it to the lever body 12 so that the direction of the cam follower bracket 16 is reversed vertically, and as shown in FIG.
is located above the lever body 12, and this cam follower 15 contacts the cam follower contact surface 3 of the rotating cam 24.
It is sufficient to set it so that it is in contact with 0. At this time, the biasing force of the air spring is made to act on the drive shaft 7.

[Effect of idea]

As explained above, in the molten glass distribution device according to the present invention, the rotating cam that comes into contact with the cam follower is formed of two rotating cams that are fixed to one rotating shaft parallel to each other at an appropriate interval, A cam follower guide groove with a plurality of ropes is formed on one rotating cam, and a cam follower abutment surface with a plurality of ropes different from the ropes formed on the one rotating cam is formed on the outer periphery of the other rotating cam. Further, the cam follower is detachably held on the lever body via a cam follower bracket, and the cam follower is configured to abut either one of the two rotating cams. By simply reversing the cam follower bracket and attaching it to the lever body, the rotating cam to which the cam follower should be brought into contact can be selected. Therefore, the molten glass dispensing device of the present invention can now change the section in about 5 minutes, which conventionally required two people to change over 30 minutes, and there is no need to handle a heavy rotating cam. This has the advantage of greatly improving safety.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention,
Fig. 1 is a partially sectional plan view showing the main parts of the molten glass distribution device, Fig. 2 is a longitudinal sectional view showing the vicinity of the scoop, Fig. 3 is a longitudinal sectional view showing the vicinity of the rotating cam and cam follower, FIGS. 4 and 5 are partial cross-sectional views showing the state of contact between the rotating cam and the cam follower. 1...scoop, 5...gear, 7...drive shaft,
8...Rack gear, 10...Cam roller, 12...
... Lever body, 13 ... Pivot shaft, 16 ... Cam follower bracket, 23, 24 ... Rotating cam, 25
... Rotating shaft, 29 ... Cam follower guide groove, 30
...Cam follower contact surface.

Claims (1)

[Scope of utility model registration request] A cam roller is provided at the end of the drive shaft, which is equipped with a rack gear that meshes with the gear provided on the scoop, and the cam follower rotates around the pivot shaft by contacting the rotating cam, and this rotation causes the cam roller to move through the cam roller. In the molten glass distribution device comprising a lever body for horizontally moving the drive shaft, the rotary cam is formed of two rotary cams fixed to one rotary shaft parallel to each other at an appropriate interval, A cam follower guide groove with a plurality of ropes is formed on one rotating cam, and a cam follower abutment surface with a plurality of ropes different from the ropes formed on the one rotating cam is formed on the outer periphery of the other rotating cam. The cam follower is configured to be detachably attached to the lever body via a cam follower bracket, and the cam follower is configured to abut either one of the two rotating cams. Molten glass distribution equipment.