EP2780143A1 - Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique - Google Patents

Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique

Info

Publication number
EP2780143A1
EP2780143A1 EP12797758.5A EP12797758A EP2780143A1 EP 2780143 A1 EP2780143 A1 EP 2780143A1 EP 12797758 A EP12797758 A EP 12797758A EP 2780143 A1 EP2780143 A1 EP 2780143A1
Authority
EP
European Patent Office
Prior art keywords
tire
casing
ripping
support
sidewall
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Withdrawn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
EP12797758.5A
Other languages
German (de)
English (en)
Inventor
Leandro Romero Marion
Alexander Mateos Torrero
Pablo Ferrón Celma
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.)
Gomavial Solutions SL
Original Assignee
Gomavial Solutions SL
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
Priority claimed from EP20120382002 external-priority patent/EP2612741A1/fr
Application filed by Gomavial Solutions SL filed Critical Gomavial Solutions SL
Priority to EP12797758.5A priority Critical patent/EP2780143A1/fr
Publication of EP2780143A1 publication Critical patent/EP2780143A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/003—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting rubber
    • B26D3/005—Cutting work characterised by the nature of the cut made; Apparatus therefor specially adapted for cutting rubber for cutting used tyres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B26D1/18—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/28—Splitting layers from work; Mutually separating layers by cutting
    • B26D3/282—Splitting layers from work; Mutually separating layers by cutting by peeling-off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/02—Separating plastics from other materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present invention describes a device which allows removing the casing from a tire or part of a tire allowing the subsequent use thereof as an independent product in other industries. Two methods allowing such removal are also object of the invention, as well as the obtained products.
  • the tread band which can be formed by textile fibers embedded in rubber or only rubber in the case of truck tires; the metal mesh, formed by a generally oblique framework of wires; and the casing on which the other two layers are arranged.
  • the fibers of the casing in radial tires are radial fibers.
  • the tire can contain more than one metal mesh and more than one tread layer. After manufacturing the tire these layers are not distinguished through an inner separation surface but rather are embedded in the rubber and spaced from one another providing different resistance functions to the overall tire performance .
  • Regeneration technologies recovering or reclaiming and devulcanizing .
  • the main technical problem solved by the present invention is to provide a simple and economical alternative in tire recycling.
  • a tire is considered a set of materials mixed in a complex manner from which the components thereof are to be reclaimed, searching for ways to separate each component, i.e., the rubber or the metal parts.
  • the present invention allows obtaining new products from the tire or from a part thereof. It can be interpreted that tire manufacture is an initial manufacturing phase of these new products therefore the steps of the invention themselves complete these initial manufacturing steps until obtaining the desired product .
  • the present invention proposes a set of steps for carrying out two methods, particularly applicable by means of a device such as that claimed in claim 1 for generating new products from a tire or parts thereof.
  • Parts of the tire are included because it is possible that the tire has been previously worked on to remove some of its parts.
  • the present invention starts from a complete tire or from a tire from which some component has been removed, such as the tread band for example.
  • tire will indiscriminately refer to the complete tire or to the tire even though it lacks some of its parts.
  • the sidewall of the tire is mentioned, it will also correspond with part of the sidewall .
  • a removal device for removing the casing from a tire or part thereof is thus described, where the device comprises:
  • the plane adapted for perimetral support is perpendicular to the central axis of rotation of the tire in the usual operating position.
  • a second support in which there are arranged supporting or securing means adapted for either securing a bead or a sidewall of the casing located on one of the sides of the tire, or for applying pressure on the same bead or on the sidewall of the casing,
  • the device comprises elements capable of applying pressure on or securing a bead of the casing, where said elements are moveable.
  • a cut which allows generating a separate section of the casing with respect to the rest of the tire is made previously or simultaneously.
  • the axial movement of the second support is parallel to the central axis of rotation of the tire in the operating position. Guiding means allowing this movement are configured .
  • the supporting or securing means exert pressure or securing force on the tire and the driving means for driving the support of the supporting or securing means cause a pulling or apply a pressure.
  • Pulling or applying pressure on the bead of the casing causes the progressive separation of the casing with respect to the rest of the tire, two surfaces which converge into a ripping origin progressing through the rubber being generated. These surfaces are located between the casing and the adjacent structures. One surface is the one associated with the obtained section and the other surface is the one which results inside the tire structure which is on the tire supporting support. This pulling or pressure must be such that the surfaces are generated without the fibers tearing or without the reinforcements and metal meshes either in the removed section or in the parts of the tire which are in the support emerging to the surface.
  • the driving means can be electric means, mechanical means, hydraulic means, etc.
  • the driving means are adapted for lowering the bead or sidewall of the casing towards the opposite side of the tire to separate the rest of the tire by ripping.
  • the device When pulling or pressure occurs at different points (at as many points as there are supporting or securing means), for example, homogenously distributed along the entire perimeter of the tire, a uniform tear is formed progressing in the form of a crack.
  • the device is such that it establishes means for carrying out the continuous pulling or applying continuous pressure in the direction established in accordance with the method according to a second aspect of the invention.
  • the pulling is either performed from the bead secured by the supporting or securing means towards the other bead, which is supported on the first support, or the pressure is performed on the bead on which the supporting or securing means are supported towards the other bead or towards the first sidewall, supported on the first support.
  • the pulling is performed from the bead secured by the supporting or securing means towards the other side of the tire from which the bead has been able to be removed.
  • This second aspect of the invention comprises two removal methods for removing the casing from a tire or part thereof (in the event that an element has been previously separated as mentioned above, such as the tread band for example) .
  • the first removal method for removing the casing (C) from a tire (N) or part thereof comprises the following steps:
  • steps a and d perimetral cuts
  • steps a and d perimetral cuts
  • the tire is supported on the side all opposite the side all, called the first side all, on which the first perimetral cut has been made. If cuts have been made beforehand, in the event of starting from a tire from which some of its parts have been removed, such as the tread band for example, or if two cuts have initially been made, one on each sidewall, then the choice of the sidewall on which the tire rests is irrelevant.
  • the bead of the casing of the second sidewall on which a perimetral cut has been made is secured or pressed, this bead is opposite the bead or first supported sidewall, and said bead is pulled or pressed in a direction having a projection parallel to the surface generated in the tire, which is in turn perpendicular to the main plane of the tire, i.e., direction parallel to the axis of rotation of the tire.
  • the pulling or pressure direction is towards the opposite bead, i.e., the one which is supported (first sidewall) . Said pulling is performed or said pressure is applied until the surfaces generated by ripping reach or exceed the midplane of the tire, i.e., a complete separation of the casing is not made in a first or single ripping.
  • Indicating that it must have a projection parallel to the surface generated in the tire is a way to express that the pulling or pressure must have a force component parallel to the surface immediately generated by ripping.
  • This parallel force component is the separation component which allows the generated surfaces to progress by ripping.
  • this ripping can be accompanied at the same time by an optional continuous cut; i.e., during ripping advance, the origin of the generated crack can be attacked by a tool such as cutting means for example favoring said advance movement.
  • the generated ripping surfaces always start from the perimetral cuts, preventing new ripping surfaces starting from the ends of the cords or fibers reaching the sidewalls from being generated. If this were the case, the generated band would end with fibers or cords protruding from the band,
  • the ripping results in two surfaces, one surface in the obtained band and another surface in the inner part of the tire structure which is in the support for supporting the tire.
  • the ripping progresses through the rubber leaving the fibers both of the obtained casing section and those which are maintained in the tire structure embedded under the generated surfaces.
  • the ripping will ideally be performed in a continuous and constant manner, although ripping at intervals would be possible.
  • this step can be performed as the initial step in this method, as the intermediate step after having generated a first progressive ripping in the opposite shoulder, or could have been performed previously in the event of starting from a tire from which some of its parts have been removed, such as the tread band for example.
  • the tire After having performed a partial ripping between the rubber embedded in the casing and the rubber embedded in the adjacent layer, such as the metal mesh or the first metal mesh for example, if there is more than one, where said partial ripping has been made until the surfaces generated by ripping reach or exceed the midplane of the tire, the tire is supported by the second side all opposite that of the second perimetral cut, coinciding with the sidewall where the casing is partially separated from the adjacent layer.
  • the bead of the casing on which the second perimetral cut has been made is secured, this bead is opposite the bead or second supported sidewall, and said bead is pulled in a direction having a projection parallel to the surface generated in the tire, which is in turn perpendicular to the main plane of the tire or parallel to the axis of rotation of the tire.
  • the pulling is performed or the pressure is applied in the direction opposite the direction of the previous pulling or pressure (the tear is from the opposite sidewall) until reaching the first ripping, the casing is therefore completely separated from the adjacent layer.
  • This second ripping can optionally be accompanied by a continuous cut to facilitate separating layers.
  • the second removal method for removing the casing from a tire or part thereof comprises the following steps:
  • one of the sidewalls is removed from the tire by making a cut in the shoulder of the tire.
  • the casing is always separated from the rest of the tire in a single ripping as a result of this removal, the number of operations and position changes are therefore reduced.
  • this step can be performed as an independent step in this method or could have been performed previously in the case of starting from a tire from which some of its parts have already been removed, such as the tread band for example. And also like the first method, the cut can be made prior to ripping or continuously and at the same time as the ripping, accompanying the pulling movement and thus aiding ripping and separating layers .
  • a support is located at the cutting point in the shoulder of the tire. At that point two surfaces through which the ripping will be guided are generated.
  • the support will be outwardly radial preventing the rest of the tire from giving way together with the casing on which the pulling is performed or pressure is applied during the ripping.
  • the bead of the casing of the sidewall on which a perimetral cut has been made is secured or pressed, this bead is that opposite the removed bead or sidewall, and said bead is pulled or pressed on in a direction having a projection parallel to the surface generated in the tire, which is in turn perpendicular to the main plane of the tire, i.e., direction parallel to the axis of rotation of the tire.
  • the pulling or pressure direction is towards the bead which would be the opposite bead, i.e., the removed sidewall. Said pulling is performed or pressure is applied until completely separating the casing from the rest of the tire in a first or single ripping.
  • the generated ripping surfaces always start from the perimetral cuts preventing new ripping surfaces starting from the ends of the cords or fibers reaching the sidewalls from being generated. If this were the case, the generated band would end with fibers or cords protruding from the band,
  • the ripping results in two surfaces, one surface in the obtained casing section and another surface in the inner part of the tire structure which is in the support for supporting the tire.
  • the ripping progresses through the rubber leaving the fibers both of the obtained casing section and those which are maintained in the tire structure embedded under the generated surfaces.
  • the ripping will be ideally performed in a continuous and constant manner, although ripping at intervals would be possible .
  • Figure 1 shows a perspective view of a first embodiment of the device.
  • the driving means of the second support move the supporting or securing means for supporting or securing the bead or sidewall of the casing closer to or away from the first support of the tire and allow pulling or applying pressure on the casing.
  • Figure 2 also shows a perspective view of the supporting or securing means separately from the assembly of the device in the same embodiment.
  • Figures 3 and 4 separately and together show the supporting or securing means and the cutting tool in its sliding support of the embodiment of Figure 1.
  • Figure 5 shows a detailed view of the cutting tool and its supports of the embodiment of Figure 1.
  • Figures 6 and 7 separately and together show the driving means for the lowering and the axially movable tubular body intended for entering the perimetral crack for separating the casing to guide the ripping advance in the combined and rest position and in combination, of the embodiment of Figure 1.
  • Figures 8 to 11 are detailed views of the cross-section of a tire and how the ripping progresses according to the first method of carrying out the invention.
  • Figures 12 and 13 are detailed views of the cross-section of a tire and how the ripping progresses according to the second method of carrying out the invention.
  • Figures 1 to 7 show different viewpoints of a device according to a first embodiment of the invention according to a first method.
  • the different components of the device are supported on a frame (1) which functions as a structural support.
  • the shape of the frame (1) according to this embodiment is mainly orthohedral .
  • the main structure with a first support (3) mainly extending into a plane (P) adapted for supporting a sidewall of the tire (N) is observed in this embodiment.
  • This first support (3) can be a tube, a surface supported by columns, etc.
  • the second support (2) with supporting or securing means (2.1) adapted in this embodiment for securing the bead of the second sidewall of the casing (C) corresponding to the sidewall opposite the first sidewall resting in the first support (3) .
  • the supporting or securing means (2.1) for the bead or sidewall of the casing (C) in this embodiment are one or more clamps (2.1) operated by actuators (2.1.1) .
  • a plurality of clamps (2.1) is arranged radially distributed in equidistant in the support (2) .
  • Three clamps (2.1) have been shown in this example.
  • the supporting or securing means (2.1) are a pressure element, such as a tubular element or a platform of suitable size, which applies pressure on the inner part of the tire (N) , for lowering only the casing (C) which would be separated from the rest of the tire (N) through tearing.
  • the guiding means (2.2) for guiding the second support (2) allow the axial movement of said support (2) where the axial movement (E) is perpendicular to the plane (P)
  • the driving means (2.3) of the second support (2) allow driving along the guiding means (2.2) .
  • These means allow pulling or applying pressure on the casing (C) separating it from the rest of the tire, thus the driving means (2.3) are adapted for lowering the bead or sidewall of the casing (C) , in this embodiment secured by means of the supporting or securing means (2.1) towards the opposite bead or sidewall of the casing (C) , which is supported in the first support (3) .
  • the generation of the crack or progressive separation of the casing (C) is aided with a cutting device, not depicted in the drawings.
  • the cut can be made prior to ripping or continued and simultaneously, accompanying the pulling movement and thus aiding ripping and separating layers .
  • the term ripping will be used throughout the description to designate the crack generation and separation of the casing (C) from the metal band (M) , the cut may or may not be included.
  • an axially movable tubular body (5.3) intended for entering in the perimetral crack for separating the casing (C) to guide the ripping advance has been included in the upper part of the frame (1) .
  • this tubular body (5.3) is replaced with the cutting tool.
  • this tubular body (5.3) for guiding and furthermore a cutting means favoring the ripping are simultaneously found.
  • the tubular body (5.3) and its movement relative to the first support (3) and second support (2) can be separately observed from the rest of the elements in Figures 6 and 7.
  • This tubular body prevents the tire (N) which is ripped from moving or deforming such that the ripping progresses in an undesired direction.
  • This tubular body (5.3) has a second movement direction, as observed in this embodiment, to allow withdrawing it to a rest position.
  • the tubular body (5.3) is located in a mobile carriage (5.1) that can slide on guides
  • first driving means (5.4) linked between the mobile carriage (5.1) and the main structure for moving the tubular body (5.3) between the operating position and the rest position;
  • At least one cutting tool (4.4) suitable for making a perimetral cut in the shoulder of the tire (N) has also been included in this embodiment.
  • the cutting tool (4.4) and the first support (3) and second support (2) can be observed separately from the rest of the elements in Figures 3 and 4.
  • the cutting tool (4.4) and its supports (4.2, 4.3) can be seen in Figure 5. As mentioned, making this cut would not be necessary if cut has been previously made as a result of having removed some element from the tire (N) such as for example the tread band (K) .
  • the cutting tool (4.4) is linked to a sliding support (4.2) capable of moving between two positions, an operating position which allows carrying out the perimetral cut of variable depth in the shoulder of the tire (N) ; and a second rest position.
  • a sliding support (4.2) capable of moving between two positions, an operating position which allows carrying out the perimetral cut of variable depth in the shoulder of the tire (N) ; and a second rest position.
  • an operating position which allows carrying out the perimetral cut of variable depth in the shoulder of the tire (N)
  • a second rest position In the embodiment it has been chosen to allow that when the cutting tool (4.4) is in the operating position, the tubular body is in the rest position, and vice versa, since these elements do not work simultaneously.
  • the position in which the cutting tool (4.4) is in the operating position and the tubular body (5.3) is in the rest position is thus observed in Figure 1.
  • the cutting tool (4.4) is linked to a positionable support
  • the cutting tool (4.4) can be a circular blade, a semi-circular blade, a spatula blade or a spindle-shaped blade.
  • a plurality of cutting tools (4.4) equidistantly distributed along the periphery such that the support (4.3) of the cutting tools only requires a specific angle for making the perimetral cut in the shoulder of the tire (N) .
  • perimetral support or securing means (3.2) are used on the tread band (K) of the tire (N) or on the outer part of the rest of the tire (N) .
  • the perimetral support means (3.2) prevent the rest of the tire (N) , or part of the tire (N) which is not the casing (C) , from being dragged by the supporting or securing means (2.1) which upon moving or upon securing the bead could force this part which is not the casing (C) to be moved integrally with the first support (3) .
  • the part of the tire other than the casing located outside the perimetral support means (3.2) is stably sustained without collapsing inwardly, dragged by the pulling force generated by the crack advance in the ripping.
  • two perimetral support means (3.2) facing one another are used.
  • turning means not depicted in the drawings held on the tread band (K) or the outermost layer of the tire (N) to allow turning the position of the tire (N) with respect to the axis of the plane (P) of the tire (N) .
  • a rotational force is provided for rotation about the middle axis of the tire (N) which allows turning to change from being supported on one sidewall to being supported on the opposite sidewall, where upon applying the rotational force on the tire (N) a rotation is applied by means of an outer support on the tread band (K) or the outermost layer of the tire (N) to rotate the position thereof according to the axis of the midplane (P) of the tire (N) .
  • the tire (N) is supported in the second sidewall opposite that of the second perimetral cut following these steps:
  • this turning can be manual in which case turning means will not be used or there will not be turning means,
  • the tire (N) is moved to a spacious site to allow the turning
  • the tire (N) is again supported in the first support (3), vii .
  • the tire (N) is released from the turning means if it has been used.
  • FIG. 8 The cross-section of a tire and how the ripping progresses in one embodiment are seen in Figures 8 to 11.
  • the tire (N) in cross-section, supported in the supporting means (3) is thus observed in Figure 8.
  • the first cut has been made, which is observed in the upper part of the tire between the casing (C) and the metal mesh (M) .
  • the clamps (2.1) secure the bead on which the first cut has been made, which is the bead opposite that supported in the supporting means (3) .
  • the outer part of the tire (N) in this case the tread band (K) , is adjacent to the perimetral support means (3.2), to allow stabilizing the position of the tread band (K) while the ripping crack advances.
  • the axially movable tubular body (5.3) intended for entering the perimetral separation crack of the casing (C) to guide the ripping advance is also observed in the upper part of Figure 8.
  • this process is characterized in this step by applying pressure or pulling force on the bead of the casing (C) corresponding to the second sidewall opposite the first supported sidewall in a direction perpendicular to the supporting plane (P) and in the direction of moving one bead closer to the other thus generating a progressive ripping from the perimetral cut for separating the casing (C) until reaching or exceeding the midplane of the tire (N) .
  • Figures 12 and 13 depict the cross-section of a tire and of how the ripping progresses according to the second method of carrying out the invention.
  • this second method in view of the description of the invention, method for removing the casing (C) from a tire (N) or part thereof, the elements contributing to the different steps would be:
  • this tool in one embodiment is the cutting tool (4.4), therefore the tire (N) must be turned after cutting. In another embodiment this cut is manually made with a blade or any sharp element;
  • this cut can also be made with the cutting tool (4.4), in another embodiment this cut is manually made with a blade or any sharp element;
  • the first support (3) comprises a part acting as a support, depicted as a black square, but as mentioned, this first support (3) can also be a tube or a cylindrical element, which would result in a depiction such as those in Figures 12 and 13.
  • the outer part of the tire is supported by its inner part in the axially movable tubular body (5.3) to place it on the cut and intended for guiding the perimetral separation crack of the casing (C) as a result of lifting the tire (N) .
  • the tubular body (5.3) is static.
  • the tubular body (5.3) and the first support (3) are static, and the clamps (2.1) are those which cause the tearing of the tire upon pulling the sidewall of the tire (N) and, while at the same time the sidewall is lowered with the rest of the casing (C) , the rest of the tire (N) which is being torn rises being supported in the tubular body (5.3) and the yet to be torn part also rises being supported in the first support (3) .
  • the outward radial support on the surface of the outer side generated in the perimetral cut is established by means of a tubular body (5.3) spaced with respect to the first support (3) to leave a perimetral slit through which the casing slides in the ripping of step e) .
  • the space between these two elements will preferably be between 5 and 8 mm .
  • an outer support on the tread band (K) is applied to stabilize the position thereof and the ripping advance can be added in an embodiment variant of each method, where upon applying the pressure or pulling force on the bead or sidewall of the casing (C) it results in the ripping or separation of the casing (C) with respect to the rest of the tire (N) .
  • This outer support is carried out with the perimetral support means (3.2), depicted in Figures 1 and 8 to 13.
  • a tire (N) will be formed by at least 3 layers: the tread band (K) , which can be formed by textile fibers embedded in rubber or only rubber in the case of truck tires; the metal mesh or band (M) formed by a generally oblique framework of metal wires; and the casing (C) on which the other two layers are arranged.
  • the fibers of the casing (C) in radial tires are radial fibers.
  • the tire (N) can contain more than one metal mesh (M) and more than one tread band (K) .
  • the subject invention refers to a casing (C) comprising radial fiber embedded in the rubber as well as a metal band (M) comprising framework of metal wires embedded in the rubber, which can be obtained in a process of decomposition of a tire (N) or part thereof by ripping manually or mechanically.
  • the layers are obtained as independent products and can find secondary use in other industries.
  • the tire (N) is a scrap tire to be recycled; therefore the present invention provides a simple and economical alternative in tire recycling .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Tyre Moulding (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

L'invention concerne un dispositif permettant de retirer la carcasse d'un pneumatique ou d'une partie de pneumatique, ce qui permet son utilisation ultérieure en tant que produit indépendant dans d'autres industries. L'invention concerne également deux procédés permettant ce retrait ainsi que les produits obtenus.
EP12797758.5A 2011-11-15 2012-11-14 Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique Withdrawn EP2780143A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12797758.5A EP2780143A1 (fr) 2011-11-15 2012-11-14 Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP11382347 2011-11-15
EP20120382002 EP2612741A1 (fr) 2012-01-04 2012-01-04 Dispositif de suppression et procédé de suppression de boîtier d'un pneu ou pièce associée
EP12797758.5A EP2780143A1 (fr) 2011-11-15 2012-11-14 Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique
PCT/EP2012/072573 WO2013072344A1 (fr) 2011-11-15 2012-11-14 Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique

Publications (1)

Publication Number Publication Date
EP2780143A1 true EP2780143A1 (fr) 2014-09-24

Family

ID=51356360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12797758.5A Withdrawn EP2780143A1 (fr) 2011-11-15 2012-11-14 Dispositif et procédé de retrait de la carcasse d'un pneumatique ou d'une partie de pneumatique

Country Status (2)

Country Link
EP (1) EP2780143A1 (fr)
WO (1) WO2013072344A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2164484C (fr) * 1994-12-14 2000-02-15 Max Masley Systeme de laceration de pneus de caoutchouc a l'etat solide et methode et tete de coupe correspondante
GB9726597D0 (en) * 1997-12-16 1998-02-18 Toland Joseph Pneumatic tyre rim cutting system
GB0401686D0 (en) * 2004-01-27 2004-02-25 Graffian Mfg Ltd Debeading scrap tyres
AU2006241342B1 (en) * 2006-11-23 2007-05-03 V R Tek Pty Ltd Tyre segmenting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013072344A1 *

Also Published As

Publication number Publication date
WO2013072344A1 (fr) 2013-05-23

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