EP3393774A1 - Dispositif de post-traitement de pneumatiques - Google Patents

Dispositif de post-traitement de pneumatiques

Info

Publication number
EP3393774A1
EP3393774A1 EP16797446.8A EP16797446A EP3393774A1 EP 3393774 A1 EP3393774 A1 EP 3393774A1 EP 16797446 A EP16797446 A EP 16797446A EP 3393774 A1 EP3393774 A1 EP 3393774A1
Authority
EP
European Patent Office
Prior art keywords
tires
aftertreatment
tire
treatment
supported
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16797446.8A
Other languages
German (de)
English (en)
Inventor
Ruediger Meincke
Jan Kahrs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harburg Freudenberger Maschinenbau GmbH
Original Assignee
Harburg Freudenberger Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harburg Freudenberger Maschinenbau GmbH filed Critical Harburg Freudenberger Maschinenbau GmbH
Publication of EP3393774A1 publication Critical patent/EP3393774A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0633—After-treatment specially adapted for vulcanising tyres
    • B29D30/0643—Cooling during post cure inflation; Post cure inflators used therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0603—Loading or unloading the presses

Definitions

  • the invention relates to a device for the after-treatment of tires after a vulcanization process comprising at least one aftertreatment site with a PCI for pressurizing the tire interior with a supporting gas.
  • the invention particularly relates to a device having a receiving device for the aftertreatment of tires, which are subjected to an internal pressure and cooled after vulcanization of their elastomeric material by supporting gas, in which the receiving device for mounting the tire and for sealing a tire interior formed and with a Compressed gas supply is connected.
  • One of the main production steps for the production of tires is the vulcanization of green tires.
  • the green tire is inserted into a mold which is located inside a tire vulcanizing machine and then heated to the material-dependent vulcanizing temperature and subjected to a vulcanizing pressure on the inside of the green tire.
  • a suitable heating medium with a corresponding temperature and under pressure is introduced into the interior of the green tire.
  • the green tire within the mold is determined by a device such that a largely pressure-tight chamber is formed within the green tire.
  • Particularly thick areas of the green tire are the treads. Relatively thin, the side walls are formed.
  • the reason for this significant difference in thickness are the additional tire components arranged in the area of the tread, such as steel belt, belt cover layer and the considerably thicker rubber / rubber layer compared to the side wall.
  • This considerably thicker rubber / rubber layer not least therefore has more wall thickness, because it includes the actual tire tread produced during the vulcanization process.
  • the tread area or the thick-walled rubber / rubber compound provided there must be heated sufficiently that it can flow plastically and can be pressed by the vulcanization pressure into the profile negative die of the green tire mold of the tire vulcanizing machine.
  • the plastic flowability increases in a wide range with increasing heating of the material, so that less pressing pressure is required to reliably produce the profiling can.
  • the vulcanization has the goal practically "finish" a tire blank by applying temperature and pressure within one or more time intervals, ie, to connect the components of the green tire together and to impress elastic properties to the base materials and the rubber / rubber layer by means of crosslinking processes
  • Suitable crosslinking substances may be, for example, disulfur dichloride (sulfur vulcanization, especially for natural rubber), peroxides or metal oxides, additives based on, for example, mercaptobenzothiazole or zinc dithiophosphate are suitable for crosslinking acceleration.
  • the green tire vulcanized to the finished tire is removed from the tire vulcanizing machine.
  • the removal is aimed at as early as possible after the vulcanization process in order to be able to equip the tire vulcanizing machine with a new green tire to be vulcanised and in this way reduce the process cycle times and / or increase or maximize the output of the machine.
  • the inevitable result of this as early as possible removal of the tire after the vulcanization process is that the finished tire is not or not completely cooled and due to the previously introduced considerable amounts of heat energy for the vulcanization process has a high temperature. This so-called residual heat or heat of the first fire can result in tire temperatures that are above 100 degrees Celsius. Depending on the type of tire and the material, residual tire heat at the time of removal from the tire vulcanizing machine of approx. 160 degrees C is possible, sometimes even higher.
  • a cured finished tire is extremely sensitive to the structural integrity and / or strength properties at the removal temperature from the tire curing machine and, in this state, can absorb only very limited external forces and surface pressures without plastically, ie, permanently, deforming. Moreover, shrinkage processes and internal material stresses can provide undesirable deformation during the cooling of the tire from the residual heat level to room temperature.
  • the finished tire removed from the tire vulcanizing machine may be subjected to a subsequent treatment in a tire aftertreatment device.
  • the cooling of the removed finished tire may be required under an applied internal pressure.
  • the finished tire still containing residual heat is taken up in a tire post-treatment device, a so-called post-cure inflator (PCI), and subjected to an internal pressure in the form of a supporting gas.
  • PCI post-cure inflator
  • a PCI Basically, the post-treatment of a finished tire taken out of a tire vulcanizing machine and residual heat-affected in a tire curing device is known in a PCI.
  • DE 10 2007 001 762 A1 discloses such a PCI in the context of a device with a receiving device for the aftertreatment of tires, which are subjected to a vulcanization of their elastomeric material of supporting gas with an internal pressure and cooled, wherein the receiving device for holding the tire and formed to seal a tire interior and connected to a pressurized gas supply.
  • the goal of cost reduction defined in DE 10 2007 001 762 A1 is achieved by the arrangement of at least two arranged in a row Reifenafterschn in the aftertreatment device.
  • the generic devices for the aftertreatment of tires are designed and designed as satellite systems of Reifenvulkanisiermaschine.
  • the common power supply controls and controls as well as electrically, fluidly or pneumatically operating units for the tire vulcanizing machine and the tire aftertreatment devices are often provided in common.
  • the residual heat-bonded finish tire may be gripped by a discharger because of its structural sensitivity at other contact surfaces than the contact surfaces that the adjuster of the tire vulcanizing machine used to load the vulcanization mold to a green tire.
  • To solve the invention proposes constructive, based on the generic devices for the aftertreatment of finished tires, which have a residual heat level at the removal from a Reifenvulkanisiermaschine to re-dimension the geometric dimensions for the tire and / or the force-absorbing and especially supporting components and / or to adjust the supply units in terms of performance.
  • the invention provides that optionally and / or optionally the following dimensions, facilities or parameters are realized:
  • the handling equipment, aftertreatment sites and / or the PCIs are designed accordingly,
  • the handling equipment, aftertreatment places and / or the PCIs are designed accordingly, in support of the above tire dimensions are with the PCI function and the internal pressure of the finished tires with supporting gas Pressure situations from 0.03 MPa to 0.6 MPa provided in the context of stepless adjustment,
  • a stripping device at least per PCI assists tire removal from the aftertreatment site by reducing sticking of the tire to the rim plates as well as
  • An additional constructive development of the device for after-treatment of finished tires is to provide a self-sufficient "stand-alone" unit working on the tire vulcanizing machine, which achieves the teaching according to the invention by the integration and / or exclusive and power-adapted peripherals of the power supply and / or. or control and / or regulation and / or electrically, fluidically or pneumatically operated aggregates and in particular handling devices for loading and unloading the device for after-treatment of finished tires.
  • the invention recognizes that in particular self-sufficient devices for the aftertreatment of finished tires supported by their independent of a Reifenvulkanisiermaschine and their supply units and handling or transport devices in a particularly advantageous manner, the tire finishing of finished tires with large dimensions for commercial vehicles and trucks.
  • it is possible to tailor the stand-alone devices for the after-treatment of finished tires with their associated loaders and unloaders very specific to specific tire dimensions.
  • these devices can be brought to the respective tire vulcanizing machine in an uncomplicated manner, quickly and without changeover measures.
  • the entire device is arranged for aftertreatment with its units and handling devices as a unit and, for example, on a mobile machine bed, which supports a quick installation to a location near the tire vulcanizing machine.
  • Another possibility for laying the stand-alone device for the aftertreatment of finished tires without traversing device is supported by suspension shots at various device points in order to move the entire unit with the usual in production halls gantry cranes.
  • Another advantage of the stand-alone solution uses the invention with regard to the cooling times of the final maturation of residual heat to an arbitrarily lower temperature level.
  • devices for the aftertreatment of finished tires with an adapted number of PCI slots and depending on the application speed of the tire vulcanizing machine can be brought and / or one, two or more of these deployable stand-alone devices can be used flexibly. Due to the coordinated number of PCI cooling stations for finished tires, their residence time and thus the cooling time can be adjusted step by step without having to adversely affect, ie slow down, the rate of application of the tire vulcanizing machine.
  • the receiving device has at least two stationary receiving areas for at least two tires and at least one input of the Tire is made using a positionable handler.
  • At least two receiving areas of the device are arranged stationary and that an input of the tires to be post-treated takes place using a suitably positionable handling device.
  • a compact arrangement is supported by the fact that the at least two receiving areas are arranged one above the other in the vertical direction.
  • Another modularization can take place in that the at least two receiving areas are arranged next to one another in the horizontal direction.
  • retaining elements for the tire are hydraulically braced against each other.
  • a simple construction is supported by the fact that the receiving device is loaded and unloaded from one side only.
  • both loading and unloading be carried out with a modified press unloader.
  • a minimization of the number of movable components is achieved in that one of the holding elements is fixed and the other is positioned.
  • a small sealing effort is supported by the fact that a supply of compressed gas to an interior of the tire by the stationarily arranged holding element is carried out.
  • a seal of the tire interior is supported by the fact that the tire can be acted upon in a first process step via a valve assembly with a biasing pressure.
  • the tire can be acted upon by a main assembly pressure via a valve arrangement in a second process step.
  • FIG. 1 shows a three-dimensional overall view of an exemplary embodiment of the device according to the invention for the after-treatment of tires in use for tire post-treatment on a tire vulcanizing machine
  • FIG. 2 is a schematic side view of a device with four receiving areas for tires to be treated
  • Fig. 4 is a side view of a next to a Reifenloompresse and a
  • Handling device arranged device for aftertreatment of tires
  • Fig. 5 is a plan view of the arrangement in Fig. 4 according to viewing direction V in
  • FIG. 4 and 6 is a more detailed view of the arrangement of FIG. 2.
  • FIG. 1 an embodiment of the device for the aftertreatment of tires (1) is illustrated schematically and for the sake of clarity on the basis of a three-dimensional representation. Shown is the apparatus for post-treatment of tires (1) placed adjacent to a tire curing machine (100) and a tire removal (300) for finished tires at ambient temperature level (200 ').
  • the device for the aftertreatment of tires (1) in this example is designed as a separate structural unit operating independently of a tire vulcanizing machine (100) with at least one after-treatment station (80) for residual heat-bonded finished tires (200) within a PCI (13) and at least one handling device (FIG. 30) for loading and discharge of the at least one post-treatment station (80) and the necessary aggregates (50) for power supply, drive and control / regulation (40).
  • a tire vulcanizing machine 100
  • at least one after-treatment station (80) for residual heat-bonded finished tires (200) within a PCI (13) and at least one handling device (FIG. 30) for loading and discharge of the at least one post-treatment station (80) and the necessary aggregates (50) for power supply, drive and control / regulation (40).
  • a combination of transporting means (60) in the form of a conveyor belt and handling device (30) may be provided as shown in Figure 1, or alternatively on the transport means (60) are dispensed with, wherein the handling device (30) is designed and positioned in this case so that the transport function is integrated.
  • the illustrated apparatus for after-treatment of tires (1) in this example has a stator base (21) of the machine bed (20) formed as Plurality of feet for support on the hall floor.
  • a stator base (21) of the machine bed (20) formed as Plurality of feet for support on the hall floor.
  • an indoor or gantry crane is used, which is usually present in production halls.
  • the device for the aftertreatment of tires (1) is intended to be arranged on a mobile machine bed (not shown) so that the rapid transfer to different places of use adjacent to a tire vulcanizing machine (100) is supported by the self-propelled property realized thereby ,
  • the rim plates in the PCIs and / or the clear width in the transverse direction or in the stand-alone variant of the device according to the invention for the aftertreatment of tires (1) the clear width of the PCI rim plate and / or the handling device (30) and / or its loader, unloader (31) and gripping tools (32) and all other size-relevant machine parameters designed and constructed in the manner described.
  • An application can be made for the after-treatment of tires for cars, trucks, commercial motorcycles or scooters.
  • FIG. 2 shows a device for the after-treatment of tires (1 a), in which a receiving device for the tires (1 a) is arranged in the region of a machine frame (2 a).
  • the receiving device (3a) is provided in the illustrated embodiment with four receiving areas (4a) for the tires (1a).
  • two receiving regions (4a) are arranged next to one another and one above the other, so that a rectangular basic structure of the receiving device (3a) is provided.
  • first and second rim plates (5a, 6a) are arranged in the region of each of the receiving areas (4a.
  • the first rim plates (5a) are each rigidly connected to a stationary arranged traverse (7a).
  • the second rim plates (6a) are arranged relative to the machine frame (2a) positionable.
  • hydraulic cylinders (8a) are used, on whose punches (9a) the second rim plates (6a) are fastened.
  • a symmetrical construction is supported by the fact that the hydraulic cylinders (8a) each extend in pairs in opposite directions.
  • Fig. 3 shows a hydraulic circuit diagram for the pressure supply of the hydraulic cylinder (8a).
  • the piston (10a) divides an inner space of the hydraulic cylinder (8a) into an upper control chamber (1a) and a lower control chamber (12a).
  • Both control chambers (11a, 2a) can be actively acted upon by a control pressure, so that the piston (10a) can be actively positioned both forward and backward.
  • the upper control chambers (11a) are connected to a valve assembly (13a) for providing a biasing pressure.
  • the upper control chambers (11 a) by a valve assembly (14 a) can be acted upon to provide a main pressure.
  • Both control chambers (11a, 12a) are coupled via check valves (15a, 16a) to at least one pressure relief valve (17a).
  • Fig. 4 shows a side view of an overview, in which the receiving device (3a) is arranged laterally next to a Reifenmorepresse (18a).
  • the tires (1a) are transported by a handling device (19a) from the tire heating press (18a) to the receiving device (3a) and inserted into the receiving device (3a).
  • Sufficiently cooled in the region of the receiving device (3a) tires are removed from the handling device (19a) again from the receiving device (3a) and to a discharge device (20a). In the illustrated embodiment, this is done with the interposition of a transport path (21a).
  • FIG. 5 shows a plan view of the arrangement according to FIG. 4.
  • the size relations are illustrated by a marked human operator (22a).
  • FIG. 6 shows the arrangement according to FIG. 2 in a more detailed representation.
  • a tire (1a), not shown in FIG. 6, is placed on the first rim plate (5a) using the handling device (19a), also not shown, in the two upper receiving areas (4a).
  • the second rim plate (6a) is subsequently driven in the direction of the tire (1a) and thus seals together with the first rim plate (5a) a pressure-tight interior of the tire (1a).
  • the tire (1 a) is here compressed more than its nominal width (23 a) corresponds. This ensures a secure seal.
  • the hydraulic cylinder (8a) generates a bias pressure P1 using the valve assembly (13a) illustrated in FIG.
  • the second rim plate (6a) is pushed back against the biasing pressure P1 of the hydraulic cylinder (8a) until the tire (1a) has expanded to its nominal width (23a).
  • the hydraulic cylinder (8a) is subjected to a hydraulic pressure P2 and kept in this position.
  • a position detection for the current width of the tire (1 a) and in particular for detecting reaching the nominal width (23 a) can over Switch or Wegmeßsysteme done.
  • the pressure P2 is greater than the pressure P1.
  • the arrangement shown in Fig. 6 with four receiving means (3a) is adapted to provide a post-treatment capacity for a conventional double heating press. After a sufficient cooling of the tire (1a) in the region of the receiving device (3a), first the internal pressure from the tire (1 a) is discharged and then the punch (9a) of the hydraulic cylinder (8a) with the second rim plate (6a) moved back. The handling device (19a) then removes the cooled tire from the receiving device (3a) and transfers it to the removal device (20a).
  • a handling surface is arranged on a rear side of the receiving device (3a) in order to support a change of the rim plates (5a, 6a) as well as a storage of rim plates (5a, 6a) which are not currently required.
  • two receiving regions (4a) are arranged one above the other in the vertical direction and combined to form a functional module. Any number of such functional modules may be combined to provide a required post-treatment capacity. It is also possible to combine the four receiving areas (4a) illustrated in FIG. 5 as a functional module and to provide a correspondingly required capacity by the combination of such quad modules.
  • the aftertreatment of the tires essentially serves to cool the tire material until sufficient dimensional stability has been achieved.
  • the cooling takes place here by a heat transfer to the surrounding air and to the rim plates (5a, 6a). Cooling can be achieved by blowing with cooling air get supported.
  • the pressurized gas introduced into the tire (1a) during the cooling process essentially serves to support the tire and thus to stabilize it during the cooling process. As a result, deformations are avoided before reaching a sufficient dimensional stability.
  • FIG. 1 to FIG. 6 explained above can, depending on the application, be wholly or partly combined with one another as desired. In particular, it is also possible to combine respective subsets of the embodiment variants illustrated in the figures and explained in the description.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

La présente invention concerne un dispositif de post-traitement de pneumatiques (1) après un processus de vulcanisation, qui comporte au moins une zone de post-traitement (80) pourvue d'un gonfleur post-vulcanisation (PCI) (13) destiné à soumettre la chambre interne d'un pneu à la pression d'un gaz de soutien, la zone de post-traitement (80) étant conçue de telle sorte que le post-traitement de pneus finis (200) présentant une chaleur résiduelle est assisté.
EP16797446.8A 2015-12-22 2016-10-11 Dispositif de post-traitement de pneumatiques Withdrawn EP3393774A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015016882.7A DE102015016882A1 (de) 2015-12-22 2015-12-22 Vorrichtung zur Nachbehandlung von Reifen
PCT/DE2016/000368 WO2017108016A1 (fr) 2015-12-22 2016-10-11 Dispositif de post-traitement de pneumatiques

Publications (1)

Publication Number Publication Date
EP3393774A1 true EP3393774A1 (fr) 2018-10-31

Family

ID=57326132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16797446.8A Withdrawn EP3393774A1 (fr) 2015-12-22 2016-10-11 Dispositif de post-traitement de pneumatiques

Country Status (5)

Country Link
EP (1) EP3393774A1 (fr)
JP (1) JP2018538180A (fr)
KR (1) KR20180096640A (fr)
DE (1) DE102015016882A1 (fr)
WO (1) WO2017108016A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108312588B (zh) * 2018-05-04 2024-06-21 华澳科技(苏州)股份有限公司 一种摆臂式轮胎后处理装置
CN108819304B (zh) * 2018-06-22 2023-08-11 青岛海琅智能装备有限公司 轮胎硫化单元、含其的轮胎硫化机及硫化工艺
TWI703028B (zh) * 2019-10-25 2020-09-01 陳信丞 全自動輪胎硫化生產線及其製程
DE102021102256A1 (de) 2021-02-01 2022-08-04 Harburg-Freudenberger Maschinenbau Gmbh Vorrichtung zur Nachbehandlung von vulkanisierten Reifen und Reifenheizpresse
CN218838716U (zh) * 2022-11-30 2023-04-11 华澳轮胎设备科技（苏州）股份有限公司 一种轮胎后充气装置
EP4286146A1 (fr) 2023-05-29 2023-12-06 Urma Controls sp. z o.o. Dispositif de refroidissement et de stabilisation du pneu vulcanisé

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Publication number Priority date Publication date Assignee Title
IT1240508B (it) * 1990-07-27 1993-12-17 Firestone Int Dev Spa Dispositivo di carico-scarico e stabilizzazione di pneumatici di veicoli
JPH05131463A (ja) * 1991-11-13 1993-05-28 Kobe Steel Ltd ポストキユアインフレータ上下リム及び上下リム交換装置
JPH0857858A (ja) * 1994-08-25 1996-03-05 Kobe Steel Ltd タイヤ加硫システム
ES2289132T3 (es) * 2001-08-10 2008-02-01 Bridgestone Corporation Sistema de vulcanizacion de cubiertas.
DE502007002401D1 (de) * 2006-01-10 2010-02-04 Harburg Freudenberger Maschb Vorrichtung zur nachbehandlung von reifen
DE102007001762A1 (de) 2006-01-10 2007-07-19 Harburg-Freudenberger Maschinenbau Gmbh Vorrichtung zur Nachbehandlung von Reifen
JP5801686B2 (ja) * 2011-10-25 2015-10-28 住友ゴム工業株式会社 タイヤ剥がし装置
CN102672862B (zh) * 2012-01-17 2015-09-09 华澳轮胎设备科技（苏州）股份有限公司 轮胎后充气装置
CN203156997U (zh) * 2013-04-09 2013-08-28 健伦精密机械(中国)有限公司 轮胎加硫机

Also Published As

Publication number Publication date
WO2017108016A1 (fr) 2017-06-29
JP2018538180A (ja) 2018-12-27
DE102015016882A1 (de) 2017-06-22
KR20180096640A (ko) 2018-08-29

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