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US 9,314,957 B2Granted
Blow-molding machine with pressure cylinder with force equalization means for piston compressor
AssigneeKrones AG
InventorsJochen Hirdina, Heinrich Bielmeier, Konrad Senn, Günter Winkler
Life of this patent
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Abstract
Blow-molding machine for blow-molding plastic containers with at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, wherein the blow-molding unit has a force equalization means, such that at least part of the compression force which occurs is compensated for, wherein the blow-molding unit comprises a pressure piston and pressure cylinder.
Claims27
A method for blow-molding containers, comprising:
- docking a preform to a blow-molding unit, which comprises a pressure piston and a pressure cylinder;
- stretch blow-molding the preform to form a finished container by means of compressed air;
- undocking the finished container;
- compensating at least part of the compression force by a force equalization means;
- wherein the force equalization means comprises one of a passive actuator, an active actuator, and a combination thereof;
- wherein the passive actuator comprises one of a spring, a pneumatic cylinder, a hydraulic cylinder, and a combination thereof;
- wherein the active actuator comprises one of an electromechanical cylinder, a linear motor, a hydraulic cylinder, pneumatic cylinder, and a combination thereof;
- wherein the active actuator is adapted to be combined with a threaded spindle or a recirculating ball screw;
- and
- wherein the force equalization means comprises a scissor-type foldable joint.
7 more elements
A blow-molding machine for blow-molding plastic containers, the blow-molding machine comprising:
- at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, the blow-molding unit having a force equalization means, such that at least part of the compression force arising is compensated;
- a pressure piston and a pressure cylinder;
- and wherein the force equalization means comprises a fluid pressure accumulator;
- wherein the fluid pressure accumulator comprises a second pressure piston in a second pressure cylinder, wherein the second pressure cylinder is filled at least partially with a fluid;
- and wherein the second pressure cylinder is configured as a water hydraulic system, wherein water is substantially used as hydraulic liquid.
2 more elements
A blow-molding machine for blow-molding plastic containers, the blow-molding machine comprising:
- at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, the blow-molding unit having a force equalization means, such that at least part of the compression force arising is compensated;
- a pressure piston and a pressure cylinder;
- wherein the force equalization means comprises a fluid pressure accumulator and a wheel;
- and wherein a connecting rod which absorbs the force of the pressure piston is attached to the wheel.
1 more element
A blow-molding machine for blow-molding plastic containers, the blow-molding machine comprising:
- at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, the blow-molding unit having a force equalization means, such that at least part of the compression force arising is compensated;
- a pressure piston and a pressure cylinder;
- wherein the force equalization means comprises one of a passive actuator, an active actuator, and a combination thereof;
- wherein the passive actuator comprises one of a spring, a pneumatic cylinder, a hydraulic cylinder, and a combination thereof;
- wherein the active actuator comprises one of an electromechanical cylinder, a linear motor, a hydraulic cylinder, a pneumatic cylinder, and a combination thereof;
- wherein the active actuator is adapted to be combined with one of a threaded spindle or a recirculating ball screw;
- and wherein the force equalization means comprises a toggle lever mechanism.
4 more elements
A blow-molding machine for blow-molding plastic containers, the blow-molding machine comprising:
- at least one blow-molding unit for stretch blow-molding preforms by means of compressed air, the blow-molding unit having a force equalization means, such that at least part of the compression force arising is compensated;
- a pressure piston and a pressure cylinder;
- wherein the force equalization means comprises one of a passive actuator, an active actuator, and a combination thereof;
- wherein the passive actuator comprises one of a spring, a pneumatic cylinder, a hydraulic cylinder, and a combination thereof;
- wherein the active actuator comprises one of an electromechanical cylinder, a linear motor, a hydraulic cylinder, a pneumatic cylinder, and a combination thereof;
- wherein the active actuator is adapted to be combined with one of a threaded spindle or a recirculating ball screw;
- and wherein the force equalization means further comprises a scissor-type foldable joint.
4 more elements
A method for blow-molding containers, the method comprising:
- docking a preform to a blow-molding unit, which comprises a pressure piston and a pressure cylinder;
- stretch blow-molding the preform to form a finished container by means of compressed air;
- undocking the finished container;
- compensating at least part of the compression force by a force equalization means;
- and wherein the force equalization means comprises a fluid pressure accumulator;
- and
- wherein the second pressure cylinder is configured as a water hydraulic system, wherein water is substantially used as the hydraulic liquid.
4 more elements
A method for blow-molding containers, the method comprising:
- docking a preform to a blow-molding unit, which comprises a pressure piston and a pressure cylinder;
- stretch blow-molding the preform to form a finished container by means of compressed air;
- undocking the finished container;
- compensating at least part of the compression force by a force equalization means;
- wherein the force equalization means comprises a fluid pressure accumulator;
- wherein the force equalization means comprises a wheel;
- and
- wherein a connecting rod which absorbs the force of the pressure piston is attached to the wheel.
5 more elements
A method for blow-molding containers, comprising:
- docking a preform to a blow-molding unit, which comprises a pressure piston and a pressure cylinder;
- stretch blow-molding the preform to form a finished container by means of compressed air;
- undocking the finished container;
- compensating at least part of the compression force by a force equalization means;
- wherein the force equalization means comprises one of a passive actuator, an active actuator, and a combination thereof;
- wherein the passive actuator comprises one of a spring, a pneumatic cylinder, a hydraulic cylinder, and a combination thereof;
- wherein the active actuator comprises one of an electromechanical cylinder, a linear motor, a hydraulic cylinder, pneumatic cylinder, and a combination thereof;
- wherein the active actuator is adapted to be combined with a threaded spindle or a recirculating ball screw;
- and
- wherein the force equalization means comprises a toggle lever mechanism.
7 more elements
Dependencies are inferred from the claim text.