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CN-122008526-A - Device and method for producing plastic containers with a production cavity assigned thereto

CN122008526ACN 122008526 ACN122008526 ACN 122008526ACN-122008526-A

Abstract

An apparatus (1) for producing plastic containers, comprising a production device (2) for producing plastic preforms (10), wherein the production device (2) has a plurality of production cavities (22) and has a forming device (6) which is adapted and intended to form the plastic preforms (10) produced by the production device (2) into plastic containers (20), comprising a transport device (8) which transports the plastic preforms (10) produced by the production device (2) along a predetermined transport path to the forming device (6), and comprising a heating device (4) which heats the plastic preforms (10) produced by the production device (2), characterized in that the apparatus (1) has at least one first inspection device (11-19) which is adapted and intended to detect at least one physical property of the plastic preforms (10) produced by the production device (2), and that the apparatus (1) further comprises a first allocation device (32) which is adapted and intended to allocate the production cavities (22) for producing the plastic preforms (10) to the inspected plastic preforms (10).

Inventors

  • F. Goldinger

Assignees

  • 克朗斯股份公司

Dates

Publication Date
20260512
Application Date
20251107
Priority Date
20241108

Claims (15)

  1. 1. An apparatus (1) for producing plastic containers, comprising a production device (2) for producing plastic preforms (10), wherein the production device (2) has a plurality of production cavities (22) which are each suitable and intended for molding a single plastic preform (10) and a shaping device (6) which are suitable and intended for shaping the plastic preforms (10) produced by the production device (2) into plastic containers, wherein the shaping device (6) has a plurality of shaping stations (62) which are each suitable and intended for shaping a plastic preform (10) into plastic containers, comprising a transport device (8) which transports the plastic preforms (10) produced by the production device (2) to the shaping device (6) along a predetermined transport path, and a heating device (4) which heats the plastic preforms (10) produced by the production device (2), wherein the heating device (4) is arranged between the production device (2) and the shaping device (6), It is characterized in that the method comprises the steps of, The device (1) has at least one first inspection apparatus (11-19) adapted and intended to detect at least one physical property of a plastic preform (10) manufactured by the manufacturing apparatus (2) and to output at least one first value characterizing the physical property, and the device (1) further comprises a first dispensing apparatus (32) adapted and intended to dispense the manufacturing cavity (22) for manufacturing the plastic preform (10) to the inspected plastic preform (10).
  2. 2. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The manufacturing device (2) has a control device adapted and intended to control the manufacturing device (2) by taking into account the first value.
  3. 3. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The manufacture of the plastic preform in the respective manufacturing cavity (22) is individually controllable and/or at least one parameter of each manufacturing cavity characterizing the manufacture of the plastic preform (10) in the manufacturing cavity is individually controllable.
  4. 4. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The first inspection device is arranged in the region of the heating device (4).
  5. 5. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The first inspection device is arranged at a predetermined position along the transport path of the plastic preforms, wherein the position is advantageously selected from a group of positions comprising a supply device for supplying the plastic preforms to the heating device, a deflection wheel of the transport device for deflecting the transport direction of the plastic preforms or a supply device for supplying the plastic preforms to the forming device.
  6. 6. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The device (1) has a further inspection device (25) for inspecting the plastic preform.
  7. 7. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The device (1) has a second inspection apparatus (12, 14, 16) adapted and intended to detect at least one physical property of the plastic preform (10) manufactured by the manufacturing apparatus (2) and to output at least one first value representative of said physical property.
  8. 8. The device (1) according to claim 1 or 7, It is characterized in that the method comprises the steps of, The at least one physical property of the plastic preform (10) manufactured by the manufacturing apparatus (2) is selected from a group of properties comprising properties of a sidewall of the plastic preform, properties of a mouth of the plastic preform or properties of a support ring of the plastic preform, a color of the plastic preform, an infrared absorption of the plastic preform, a temperature of the plastic preform and properties of a preform gate of the plastic preform.
  9. 9. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The device has a second allocation device which allocates the molding station to the inspected plastic preforms (10) which mold the plastic preforms into plastic containers.
  10. 10. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, At least two different inspection apparatuses are provided, which are adapted and intended to inspect at least two different areas of the plastic preform.
  11. 11. The device (1) according to claim 1, It is characterized in that the method comprises the steps of, The device has at least one discharge device which is adapted and intended to discharge the plastic preforms inspected by the at least one transport device from the transport path.
  12. 12. Method for producing plastic containers, wherein a production device (2) produces plastic preforms (10), wherein the production device (2) has a plurality of production chambers (22) which respectively mold individual plastic preforms (10), and wherein a molding device (6) forms the plastic preforms (10) produced by the production device (2) into plastic containers (20), wherein the molding device (6) has a plurality of molding stations (62) which respectively mold the plastic preforms (10) into the plastic containers, and wherein a transport device (8) transports the plastic preforms (10) produced by the production device (2) to the molding device (6) along a predetermined transport path, and a heating device (4) which heats the plastic preforms (10) produced by the production device (2), wherein the heating device (4) is arranged between the production device (2) and the molding device (6), It is characterized in that the method comprises the steps of, The device (1) has at least one first inspection apparatus (12, 14, 16) which detects at least one physical property of the plastic preform (10) produced by the production apparatus (2) and outputs at least one first value which characterizes the physical property, and the device (1) further comprises an allocation apparatus which allocates the production cavity (22) from which the plastic preform (10) is produced to the inspected plastic preform (10).
  13. 13. The method according to the preceding claim, It is characterized in that the method comprises the steps of, -Controlling the manufacturing device (2) at least temporarily using the first value.
  14. 14. The method according to claim 12, It is characterized in that the method comprises the steps of, -Controlling the forming device (6) at least temporarily using the first value.
  15. 15. The method according to claim 12, It is characterized in that the method comprises the steps of, The device (1) has at least one second inspection apparatus (12, 14, 16) which detects at least one second physical property of the plastic preform (10) produced by the production apparatus (2) and outputs at least one second value which characterizes the physical property.

Description

Device and method for producing plastic containers with a production cavity assigned thereto The present invention relates to an apparatus and a method for manufacturing plastic containers. Such devices and methods have long been known in the art. For example, so-called plastic preforms are known which are heated and in this heated state are shaped into plastic bottles, in particular (stretch) blow-molded. Devices and methods for producing such plastic preforms are also known from the prior art, in particular in the form of so-called injection molding machines. Recently, efforts have also been made to combine such machines into complete systems. In this case, first plastic preforms are produced, for example by means of an injection molding machine, and these preforms are then molded into containers, in particular plastic bottles. In such devices, it is also known to check certain properties of the plastic preform. By means of this data determined during the inspection process, for example, downstream molding machines, such as, in particular, blow molding machines, can be controlled and/or regulated. For example, it is known to perform an on-line inspection in an injection molding machine or a blow molding machine. However, such procedures are expensive and do not fill any gaps. EP 1 674,234 B1 discloses a method and a device for handling an exiting injection molded part. In this case, it is determined from which mold cavity the inspected part has been ejected. EP 0 793 569 B1 describes bottle control on the transport path of bottle forming. WO 2018/036857 A1 discloses an optical inspection system for preforms. In this case, it is recommended that the preform be in a constant relative position with respect to the injection molding operation. DE 10 2016 118 670 A1 describes a method and a device for testing preforms. In this case, during the transfer of the preform, a thermal image of the preform is recorded by a thermal imaging camera. DE 10 2009 011 269 B3 discloses a method and a device for separating recovery modes. Such separation should be done at a location remote from the manufacturing machine. WO 2018/051227 A1 describes an inspection device for plastic preforms. DE 600 28 756 T2 describes a method and a device for handling ejected injection molded parts. In this case, the components to be discharged are held in a selected order. DE 10 2018 102 299 A1 describes a method and an assembly for controlling at least one process parameter of an injection molding machine. In this case, image data of each injection molded part delivered to the test system is recorded. It is therefore an object of the present invention to improve such overall control of such machines. According to the invention, these objects are achieved by the subject matter of the independent claims. Advantageous embodiments and improvements are the subject matter of the dependent claims. The device according to the invention for producing plastic containers, in particular plastic bottles, comprises a production device for producing plastic preforms, wherein the production device has a plurality of production cavities, which are each suitable and intended for molding a single plastic preform. The apparatus also has a forming device adapted and intended to form plastic preforms manufactured by the manufacturing device into plastic containers, wherein the forming device has a plurality of forming stations which are each adapted and intended to form plastic preforms into plastic containers. Furthermore, the device has a transport device which transports the plastic preforms produced by the production device along a predetermined transport path to the forming device. The transport device preferably has a plurality of transport units, in particular transport units adjacent to one another. Preferably, the transport device is adapted and intended to transport the plastic preforms in such a way that the order of the transported plastic preforms is not changed. Furthermore, a heating device is preferably provided which heats the plastic preform produced by the production device, wherein the heating device is preferably arranged between the production device and the shaping device. Applicant reserves the right to protect an apparatus without such a heating device. According to the invention, the device has at least one first inspection apparatus which is adapted and intended to detect at least one physical property of the plastic preform produced by the production apparatus and to output at least one first value which characterizes the physical property. The apparatus further comprises a first dispensing device adapted and intended to dispense a manufacturing cavity for manufacturing plastic preforms to the plastic preforms under inspection. Preferably, the dispensing device is adapted and intended to perform the dispensing based on indicia on the plastic preform. Preferably, the dispensing device is adapted and intended to dispense a manufacturing c