MXPA96000773A - Apparatus for the separation of mass gutiformes de vidrio fund - Google Patents

Abstract

The present invention relates to an apparatus for the separation of gobs of molten glass from one or more filaments of molten glass, the separation of each gutiform month is carried out by means of a pair of cutting blades or lateral movement. A lateral movement blade of each pair of lateral movement blades is placed on an associated lateral movement arm, mounted on a pivot. The two lateral movement arms are mounted freely and coaxially pivotally or in rotation with one another on a common column. Each arm of lateral movement is driven pivotally and synchronously in relation to the other, by means of its own means of impulse.

Description

"APPARATUS FOR THE SEPARATION OF GUTIFORM MASSES OF CAST GLASS" Inventor (s): HERMANN BOGERT, German, domiciled in Birkenweg 19, D-31749 Auetal, Germany and GERHARD GEISEL, German, domiciled in Georgstrasse 13, D-31675 Bückeburg, Germany ..

Causaire: HERMANN HEYE, German company, domiciled at Lohplatz 1, D-31682 Obernkirchen, Germany.

APPARATUS FOR THE SEPARATION OF GUTIFORM MASSES OF CAST GLASS The invention relates to an apparatus in accordance with the preamble of claim 1.

In a known device of this type (DE 41 32 098 Cl), the pivoting movements of the two lateral movement arms are synchronized with one another by means of a gear mechanism. The pivoting movements are effected by driving only the first of the lateral movement arms by a driving mechanism. The driving mechanism comprises a crank whose crank pin is connected by means of a coupler rod to the first lateral movement arm. The driving means are placed on a support that moves transversely to a longitudinal dimension of the first lateral movement arm. The gear mechanism is comparatively more expensive. A lot of space is required on one side of the plane of symmetry of the lateral movement arms by the drive mechanism and its support together with the support clamps of the support. Generally, the lateral movement arm that is not directly driven is tilted by a pneumatic piston-cylinder or piston unit.

From WO 94/01371 Al, parallel lateral movement arms of different species are known. Here, each lateral movement blade is fixed to a support. The supports are driven linearly forward and backward by means of a common crank drive mechanism. The driving mechanism of the crank, comprises a crankshaft and diametrically opposed connecting rods that are coupled to the crankshaft and which are each coupled to the other end of one of the supports.

From DE 43 16 842 A1, it is known that a pivot moves laterally where the two lateral movement arms are mounted on pivots on different axes. A common frame is guided for the transverse movement back and forth to the arms of lateral movement by means of a hydraulic impeller. At the junction with the toothed frame, there is a pinion with two driven gear wheels of a gear transmission mesh. For each driven gear wheel, a connecting member carrying a first intermediate connecting member is fixed. A second intermediate joint member is coupled to each first intermediate joint member and to one of the lateral movement arms.

It is the object of the invention to simplify the apparatus and improve the kinematics of the cutting movements.

This objective is achieved by the features of claim 1. By means of the coaxial assembly of the two lateral movement arms, the spacing between the two bearing shafts in the known coupling gear mechanism, between the lateral movement arms, is eliminated. . Tolerances and play that occurs in the known coupling gear mechanism are excluded. The kinematics of the cutting movements is improved, since both arms of lateral movement now pivot around the same axis. The individual impellers for the lateral movement arms mean that each impeller can be made smaller and lighter and can adapt more easily.

According to claim 2, each electric servo drive may comprise, in addition to an electric servomotor, a subsequent engagement mechanism as required. Both electric servo drives are preferably controlled synchronously by means of freely programmed electronic control. In order to synchronize the apparatus, the electric servo drives can be brought to a stationary fixed position in an open work position for a synchronization period. The synchronization period can be made very short.

In at least one support of claim 3, it results with the particular advantage that the working stroke of the lateral movement arms can be kept at a minimum, and consequently reduce the impulse energy on the one hand, and increase the maximum speed of possible operation on the other hand. For the rest, the support allows a very simple and quick opening of the lateral movement arms, beyond the open work position relevant to the work stroke. This additional opening is desirable, for example, if the maintenance or exchange of parts has to be carried out on the orifice ring of the feeder container. The orifice ring and its surroundings can thus easily be accessed in a fast and simple manner for service purposes. An opening of the arms of lateral movement, can also take place automatically in the case of a loss of the impulse or of the driving energy. In this case, the control of the impulse means generates a start pulse for a greater control for the reverse drive of the support. The lateral movement arms then remain in a secure open position until the damage to the driving means is repaired, or the power supply is restored. In this way, the lateral movement blades can not collide with the glass filaments.

A particularly space saving construction of the apparatus is produced in accordance with claim 4. The features of claim 5 lead to a particularly favorable mass equalization between the moving components of the apparatus.

According to claim 6, a pneumatic cylinder-piston unit is preferably included, which leads to a rapid but still uniform action of the mechanism.

The features and advantages of the invention will be apparent from the following description of an embodiment of the invention, which is given by way of example and which is shown in the drawings. In the drawings: Figure 1 is a plan view of an apparatus whose arms of lateral movement are located in the open work position; Y Figure 2 is a plan view of the apparatus of Figure 1, but with the lateral movement arms in the additionally open service position.

Figure 1 shows an apparatus 1 for the separation of gobs of molten glass from the filaments 2 and 3 of molten glass. The filaments 2, 3 appear from the base holes of a feeder container 4 which is known. per se. The separation of each gob is done by a pair of lateral movement knives 5 and 6, which have the lateral movement blades 7, 8 and 9, 10.

Each individual lateral movement blade of each pair of lateral movement blades 5,6, is releasably attached to an associated lateral movement arm 11 and 12. The lateral movement arms 11, 12, are mounted free and pivotally with respect to each other, on a common column 13, having a longitudinal axis 14, so that these are coaxial. The filaments 2, 3 have longitudinal axes 15 and 16. A plane 17 extends through the longitudinal axes 14 to 16.

At a radial distance from the longitudinal axis 14, a coupling rod 20 and 21 are coupled to each lateral movement arm 11, 12 at a coupling point 18 and 19, the other ends of which are respectively connected to the respective bolts of the coupling. the handle 22 and 23, of a crank driven by the impellers 24 and 25, which are formed as electric servo drives and have longitudinal axes 26 and 27. It is advantageous that the crank pins 22, 23, always circulate in the same directions of respective rotation 28 and 29. In order to synchronize the apparatus 1, the crank bolts 22, 23, are preferably placed in a motionless position for a short time, in the neutral positions of the exterior, indicated in Figure 1.

In this neutral neutral position shown in FIG. 1, the lateral movement blades 7 to 10 are each located in their open work position, and consequently, at a maximum working distance from the associated longitudinal axis 15, 16. When the crank bolts 22, 23, move from the neutral neutral position, and circulate in the rotation directions 28, 29, the pairs of lateral movement blades 5, 6, close with a slight overlap of the cooperating lateral movement blades 7, 8 and 9, 10, with the result that the respective gobs are separated from the filaments 2 and 3 of molten glass, and fed to an associated glass forming machine. The amount of this overlap, the so-called overcutting of the lateral movement blades, can be adjusted by means of a suppressor at that end of the support 30, which is adjacent to the column 13. The suppressor is formed by an adjustable transversely inclined surface, of a housing 35, which is fixed to the apparatus.

The impellers 24, 25 are placed on opposite sides of the plane 17, on a common support 30 that moves parallel to the plane 17, by means of the guides 31 and 32, on the guide rods 33 and 34. The guide rods 33, 34, are mounted in the housing 35 which is fixed to the apparatus. A double action pneumatic cylinder 36 is mounted on the end of the housing. A rod of the piston 37 of the cylinder 36 is centrally coupled at a point 38 to the support 30. The start-up of the cylinder 36 by means of compressed air, therefore causes a displacement of the support 30 and consequently of the impellers 24. and 25, parallel to plane 17.

If it is desired to have the lateral movement blades 7 to 10 open even further from each other, starting from the open working position of the lateral movement arms 11, 12 shown in Fig. 1, for example, in order to work on the holes of glass gobs or on some other parts of the feed container 4, then, as shown in Fig. 2, the piston rod 37 retracts into the cylinder 36, and consequently, the support 30, moves downwards as seen in Fig. 2. With the support 30, the impellers 24, 25, which are fixedly mounted on it, also move, continuing the movement until the support reaches the lower extreme position indicated in the Figure 2, in which the lateral movement arms 11, 12 resume a maximum open service position. The maximum separation of the lateral movement blades 7 to 10, one from the other, is naturally achieved if the crank bolts 22, 23, maintain their external neutral positions indicated in Fig. 1, during the movement of the support 30. down, as seen in Fig. 2.

When the necessary work has been completed on the apparatus 1, then, beginning in the situation of Figure 2, the rod of the piston 37, extends again from the cylinder 36, and consequently, the support 30 moves again within its upper end position as seen in Fig. 1. This means that the lateral movement arms 11, 12 again resume the open working position shown in Fig. 1.

A similar sequence of events applies to the aforementioned open safety position of the lateral movement arms 11, 12.

Claims (6)

1. An apparatus for the separation of gobs of molten glass, from one or more filaments of molten glass, in which the separation of each gutifore mass is effected by a pair of cutting blades or lateral movement, wherein the cutting blades or lateral movement of each pair of blades of lateral movement, are placed on the respective arms of lateral movement mounted on pivot, and where the two arms of lateral movement are driven by the action of pivoting or pivoting, in synchronism with one another by means of a driving device, characterized in that both arms of cutting or lateral movement, are mounted on free pivot and coaxially on a common column of the apparatus, and each arm of lateral movement is driven by pivoting or turning by means of its own driving means separated from the driving device.

2. The apparatus according to claim 1, characterized in that each driving means is formed as an electric servo drive with a driven crank, and a coupling rod is coupled on one side, to a crank pin of each driven crank, and for on the other side, to the associated lateral movement arm, at a distance from the longitudinal axis of the column.

3. The apparatus according to claim 1 or 2, characterized in that the driving means are placed on at least one support, and in that at least one support is slidable in order to achieve a relative pivotal movement between the lateral movement arms.

4. The apparatus according to claim 3, characterized in that at least one support is moved parallel to a plane extending through the longitudinal axis of the column and through the longitudinal axis of at least one filament.

5. The apparatus according to claim 4, characterized in that each of the driving means are placed on the respective opposite sides of the plane, on a common support.

6. The apparatus according to any of claims 3 to 5, characterized in that each support is moved by means of at least one piston-cylinder unit or plunger, which is connected to the support at one end and which is fixed to the apparatus. at the other end. In testimony of which I sign the present in this City of Mexico, D.F., on February 28, 1996. Attorney