摘要:
A distributing arrangement for a pressurized cooling fluid, especially air, for cooling a forming tool of a machine for forming thermoplastic material, especially molten glass, wherein the forming tool includes at least one split mold including mold segments which are respectively mounted on mold segment holders for movement therewith relative to one another and each of which is provided with a plurality of fluid channels for the flow of the pressurized of fluid channels for the flow of the pressurized cooling fluid therethrough, comprises a fluid distributing box including for each of the mold segments at least two branch channels individually communicating with at least one of the fluid channels when the distributing box is mounted on the mold segment holder. The branch conduits can either directly communicate with the fluid channels across an interface formed by juxtaposed connecting and opposing surfaces of the distributing box and the associated mold segment, or a connecting box including a plurality of connecting channels may be interposed between the distributing box and the respective mold segment, in which case the interface is provided between the distributing and connecting boxes. The connection at the interface is established by merely resting the connecting surface on the opposing surface which has a complementary configuration to the connecting surface.
摘要:
A transfer station of a glass-forming machine includes a depositing plate for receiving at least two transversely spaced glass articles, such as bottles or the like, from the glass-forming machine. The depositing plate is mounted on a vertical shaft for turning therewith about the axis of the latter to move the glass articles thereon from a receiving to a transfer position, and the shaft with the plate is movable in vertical direction into the region of a transfer mechanism arranged to transfer the bottles from the plate to a conveyor adjacent to the plate.
摘要:
Containers (2) arrive on a first conveyor belt (3) at comparatively large initial spacings (8) from one another and at comparatively high speed in a first direction of movement (4). The containers (2) are routed on a continuously curved path (11) into a second direction of movement (5) onto a second conveyor belt (6). Between the conveyor belts (3, 6) is arranged an intermediate belt (14) whose upper run (15) is driven in a third direction of movement (16) with a lower speed than the first conveyor belt (3). The second conveyor belt (6) likewise runs at lower speed than the first conveyor belt (3), so that finally a comparatively small second gap (7) results between the containers (2). A drive member (10) carries on the one hand transportation fingers (9) which engage between successive containers (2), and on the other hand stopping members (13) of a support device (12) with which the containers ( 2) are kept in continuous contact up to their delivery on to the second conveyor belt (6). A working section (31) of the drive member (10) is automatically guided in accordance with the continuously curved path (11).
摘要:
Glass containers (3) are taken to a high temperature in an annealing furnace (7) and removed from the annealing furnace belt (5) by grips (16) of a gripping device (12). The gripping device (12) is then moved by a handling device (13) first vertically upwards, then horizontally above a fluidized bed (18) and then downwards into the fluidized bed in order to coat the glass containers (3) with a powder; it is then taken upwards out of the fluidized bed (18) and finally moved horizontally over a conveyor belt (22). There, the glass containers (3) are released from the gripping device (12) and set down on the conveyor belt (22) which takes the powder-coated glass containers (3) through a second curing region (27) in which the powder is cured to form a substantially duroplastic layer.
摘要:
Each glass gob is severed by a shear blade pair (6; 9). The shear blades (7, 8; 10, 11) are arranged on shear arms (12, 13) whose movement is synchronized with each other by means of a gear mechanism (16) A first shear arm (12) is drivable pivotably by a drive means (36), while a second shear arm (13) is supported by an air spring (28). The drive means (36) is carried on a carriage (39) which is displaceable by piston-cylinder units (48, 49). The drive means (36) drives a crank pin (43) which is connected by means of a coupling rod (44) with the first shear arm (12). By displacement of the carriage (39) one achieves a servicing stroke (34) which is greater than the working stroke (32) of the shears.
摘要:
A machine for forming a hollow article of vitreous material has a neck mold having a neck ring with a pair of separable neck ring halves, a pair of holding elements each holding a respective one of the neck ring halves, a transporting element for transporting the neck molds along a predetermined path and having guiding bars, a driving element for moving each of the holding elements relative to the guide bars between closed and open end positions with locking of the same, and carriages displaceably mounted on the guide bars, wherein each of the holding elements for holding a respective one of the neck ring halves is releasably connected with one of the carriages.
摘要:
An arrangement for adjusting the mass of gobs of thermoplastic material, especially molten glass, which are deformed in a positive manner in the mold of a molding machine by means of a pressing member which penetrates into the gobs. A distance transducer mechanically detects the maximum depth of penetration reached by the pressing member during each molding-machine operating cycle. The distance transducer is connected with a metallic actuating element for a differential transducer, at whose output is produced an electrical signal proportional to the maximum penetration depth reached, this signal being applied to an automatic regulating circuit which adjusts the setting of a dosing structure which controls the mass of the gobs. The regulating circuit includes, at the output of the differential transformer and connected one after the next, a measurement transducer, a maximum-value storage, a sample-and-hold circuit, a summing junction, a PI- or PID-regulator and an adjusting motor which drives an adjusting member for the dosing structure, as well as a feedback transducer. The feedback transducer is connected to the PI- or PID-regulator via a rotary-angle-to-voltage converter. A control and display panel is connected to a control logic circuit, the latter connected to the maximum-value storage and to the sample-and-hold circuit, the control logic circuit receiving a machine synchronization signal once per machine operating cycle. A desired-value potentiometer furnishes a desired-value voltage representing the optimum penetration depth for the pressing member, this voltage being applied to the summing junction. A weighting circuit can be provided to take into account the different maximum diameters of different pressing members which may from time to time be used. The feedback transducer is automatically returned to a middle angular setting thereof. The distance transducer can be constructed in several different ways, disclosed.
摘要:
Each station has a push-off unit which transfers glass articles produced at such station onto a common outfeed conveyor. Each push-off unit comprises a cylinder-piston unit mounted for swinging movement on a vertical swing shaft, the piston thereof carrying a push-off arm. The push-off arm extends and engages the articles to be transferred, the cylinder swings towards the belt transferring the article, and the push-off arm retracts and the cylinder swings back. The push-off units of the plural stations are activated sequentially, in correspondence to the sequence in which glass gobs are fed into the respective machine stations. Plural electric motors are provided, one per station, and the swing motion of the push-off unit is generated by the respective electric motor. The rotation of each electric motor is controllable, by open- or closed-loop control, independently of the other electric motors. The operator selects the sequence in which the electric motors are to be activated. A common or shared desired-rpm voltage is applied to all electric motors, sequentially. The electric motors drive the push-off units through respective crank and rocker mechanisms.