• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process for forming tubes and equipment to carry out said procedure, comprising placing the section of tube (2) to be bent between two half-molds (3, 4) with respective curved surfaces (5, 5 ') complementary to the shape to get; the application of heat to fuse the material and soften and deform it until it adopts the new shape, based on applying ultrasonic waves, applied simultaneously to the incorporation of the tube between the half-molds (3, 4), by means of at least one sonotrode ( 7) connected to an ultrasonic generator (8) that heats the curved surface (5) of said first half-mold (3), conjugating values of frequency and time according to the type of plastic material, the diameter of the tube (2) and the thickness of the walls of it; and cooling of the material after the deformation time has elapsed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2547285A1
    申请号:ES201530499
    申请日:2015-04-14
    公开日:2015-10-02
    发明作者:Xavier GÓMEZ CASANOVA
    申请人:Xavier GÓMEZ CASANOVA；
    IPC主号:
    专利说明:

    DESCRIPTION
    PROCEDURE FOR THE CONFORMATION OF TUBES AND EQUIPMENT TO CARRY OUT SUCH PROCEDURE

    OBJECT OF THE INVENTION 5

    The invention, as expressed in the statement of the present specification, refers to a method for forming tubes and the equipment for carrying it out, presenting a series of advantages and novelty characteristics, which will be explained in detail below, 10 which represent a remarkable improvement in the current state of the art.

    The object of the present invention focuses, specifically, on a method for forming tubes and pipes of plastic material and derivatives thereof which is based, in a novel way, on the use of ultrasound to bend said tubes, specifically applying ultrasonic waves by a generating equipment of said waves and one or more sonotrodes conveniently incorporated in each of the zones intended to bend, making the process simpler and, especially, much less expensive than the systems currently known and used for the same purpose.

    FIELD OF APPLICATION OF THE INVENTION

    The field of application of the present invention is part of the industry sector dedicated to the manufacture and transformation of plastic materials, in particular for the formation of tubes.


    BACKGROUND OF THE INVENTION 30

    As it is known, in the industry there are many applications in which it is necessary to manipulate tubes or pipes of plastic material to bend them and shape them so that they adopt a certain shape, since these tubes are normally manufactured from a straight section obtained by extruded 5

    For this, until not long ago and even today, either very outdated systems are used as well as expensive to amortize for the large facilities they occupy and high consumptions, in which the manipulation of the tubes is done in a very artisanal way , or a conformation chamber is used based on halogen lights that are applying heat on each of the areas to be curved, making the conformation must be done piece by piece and, therefore, with a fairly long conformation time, or, hot air tables are used in which the tubes have to be assembled by hand and heated, applying 15 air on one side, then on the other, and then cold air on one side and on the other, thus constituting, also a very laborious and prolonged work in time.

    The most advanced to date is a forming system based on 20 machines that work by emitting high-frequency electric current, which are faster in forming the tubes, about 30 seconds per piece, but with the inconvenience that is of very expensive machines because of the type of generators and tools that it uses, resulting, therefore, very difficult to amortize if it is not 25 large series to be manufactured.

    Broadly speaking, said system comprises two semi molds with the shape of the curve to be formed, among which the tube section to be curved is incorporated, one of these semi molds being connected to a large power generator, the semi mold being constituted as the electrode that acts
    on the material to heat and soften it by adopting the intended form when it is kept between said semi molds until it is cooled.

    However, these machines, in addition to having a very high cost, 5 that can now easily reach € 90,000, also have the disadvantage that they emit a type of radiation harmful to health and that can reach a radius of up to 300mm, so you have to isolate the part of the forming.
     10
    The objective of the present invention is, therefore, to develop a new method for forming plastic tubes and derivatives that avoids such inconveniences, and therefore is simpler and cheaper to carry out, so that it is easily amortizable and allows the formed by short series of pieces, it should be noted that, at least on the part of the applicant, the existence of any other similar procedure or invention that has the same technical and constitutive characteristics, as claimed, is unknown.

    In this regard, it is worth mentioning that US5422048 is known as "A method of production of bent resin tube", which, however, has notable differences with the procedure recommended herein, the most notable being the fact that in said patent heating of the tube is carried out in a pre-curved phase by means of a matrix, instead of incorporating the heat application means directly integrating the mold, which, in addition, is an advantage since, among other things, it allows faster in achieving the form.
    EXPLANATION OF THE INVENTION
     30
    The procedure for shaping tubes and the equipment to carry
    This procedure, which the invention proposes, is thus configured as a novelty within its field of application, since, according to its implementation, the aforementioned objectives are satisfactorily achieved, its characterizing details being conveniently set forth in the final claims. accompany this specification.

    Specifically, what the invention proposes, is a new procedure for forming pipes of plastic material and derivatives thereof that is based on the use of ultrasound to bend the tubes, 10 taking advantage of the effect produced by ultrasonic waves on the molecules of materials plastics, and that cause high frequency mechanical vibrations in them whose energy is transformed into heat, causing the material to melt in a fraction of a second, which, applied to the appropriate extent and time and accompanied by the application of pressure on the material allows its shape to be modified and, if it is maintained until the material is cooled again, the new shape is maintained.

    For this, the procedure contemplates the application of ultrasonic waves 20 generated by a small generating device, which can even be of the portable type, which are applied to the tube by means of at least one sonotrode, combining frequency and time values that will depend on each case of the type of plastic material, the diameter of the tube and the thickness of the walls of the same. 25

    Preferably, the equipment for carrying out this procedure contemplates the existence of two semi molds with the curved shape to be obtained, which will be responsible for applying the pressure to the tube, incorporating, at least one of them the sonotrode connected to the ultrasonic generator, 30 such that the tube will remain lodged and pressed between said
    semi molds during the application of ultrasound.

    Once said operation is finished, cold air will be applied through one or both ends of the tube for cooling, being subsequently extracted from the semi molds with the new desired shape. 5

    The described procedure for the conformation of tubes and the equipment to carry out said procedure consist, then, of an innovation of unknown characteristics until now for the purpose to which it is intended, reasons that together with its practical utility, provide it with a basis 10 enough to obtain the privilege of exclusivity that is requested.

    DESCRIPTION OF THE DRAWINGS

    To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, the present specification is attached, as an integral part thereof, a plane in which with an illustrative and non-limiting nature The following has been represented:
     twenty
    Figure number 1.- It shows a top view of a schematic representation of an embodiment of the equipment for forming tubes by the method object of the invention, showing in it the main parts and elements it comprises, as well as its configuration and provision; and 25

    Figure 2 shows a sectional view, according to section A-A, indicated in Figure 1, showing the configuration of the semi-mold incorporating the sonotrode, the ultrasonic generating device 30 being also represented in this case.

    PREFERRED EMBODIMENT OF THE INVENTION

    In view of the described figure 1, and according to the numbering adopted, a non-limiting example of the equipment of the invention can be appreciated, which comprises the parts and elements indicated and described in detail below.

    Thus, as shown in said figure 1, the equipment (1) in question, applicable to form tubes (2) of plastic material or derivatives thereof, and provide them with curved shapes from a straight section, by means of the application of ultrasound, it is configured from at least two semi molds (3, 4) in which respective curved surfaces (5, 5 ') are contemplated complementary to the shape to be achieved, being at least a first half mold (3) provided with at least one head (6) with at least one sonotrode (7) connected to an ultrasonic generating device (8) 15 and arranged said sonotrode (7) in such a way that the vibration caused by The ultrasound produces heat on the curved surface (5) of said first half mold (3) to act on the tube (2) by heating its surface sufficiently to deform and adopt the curved shape of the curved surfaces (5, 5 ') among those available. twenty

    Preferably, the equipment (1) contemplates the incorporation of several sonotrodes (7) connected to the ultrasonic generator (8) through corresponding heads (6) so as to heat the curved surface (5) of the first semi-mold (3). 25

    Optionally, one or more sonotrodes (7) coupled to heads (6) and connected to the ultrasonic generator (8) are also incorporated in the second half mold (4) and also arranged so that they are capable of providing heat to a curved surface ( 5 ') of this second half mold (4), although this option has not been shown in figure a
    simplification effects.

    In addition, different pairs of semi-molds (3, 4) may be provided to achieve different curves to be implemented in the tube (2) and / or in the curved surfaces (5, 5 ') complementary to the at least two, semi 5 molds (3, 4). Obviously, the inclination curves and radii will be different, depending on the shape you want to obtain.

    In any case, the ultrasonic generator (8), preferably, is a portable type generator, preferably with a power of about 10 1500W and a frequency of up to 20 HZ, although this will depend on the needs of each case, and, between other conventional elements, also preferably provided with an Ethernet connection with a PC that allows programming and adjusting the application parameters and safeguarding what is applied. fifteen

    For its part, the head (6) that connects to the generator has a transducer, an amplifier and a quick adjustment support for fixing the sonotrode (7), elements that have not been detailed in the figure because they are known. twenty

    With all this, the method for forming tubes of the invention comprises, as in other known systems, the placement of the tube section (2) to be curved pressed between two semi molds (3, 4) with respective surfaces curved (5, 5 ') 25 complementary to the shape to be achieved; application of heat for the fusion of the material to soften and deform it until it adopts the new form; and the cooling of the material once the deformation time has elapsed, with the fundamental difference that the heat application phase to achieve the fusion of the material, and that 30 constitutes the most important phase of the whole process, is produced on the basis
    to apply ultrasonic waves simultaneously to the incorporation of the tube between the semi molds (3, 4), which are applied combining, in each case, values of frequency and time according to the type of plastic material, the diameter of the tube (2 ) and the thickness of its walls.
     5
    Describing sufficiently the nature of the present invention, as well as the way of putting it into practice, it is not considered necessary to make its explanation more extensive so that any person skilled in the art understands its scope and the advantages that derive from it, stating that, within its essentiality, it may be implemented in 10 other embodiments that differ in detail from that indicated by way of example, and to which it will also achieve the protection that is sought provided that it is not altered, changed or modified its principle fundamental.
      fifteen
    权利要求:
    Claims (6)
    [1]
    R E I V I N D I C A C I O N E S
    1.- Procedure for forming tubes, in particular for forming tubes of plastic material and derivatives, comprising the steps of:
    - placement of the tube section (2) to be curved by pressing between two semi molds (3, 4) with respective curved surfaces (5, 5 ’) complementary to the shape to be achieved,
    - application of heat to fuse the material and soften and deform it until it adopts the new form, 10
    - Cooling of the material after the deformation time has elapsed, it is characterized in that the application of heat for the fusion of the material, to soften and deform it until it adopts the new shape, occurs based on applying ultrasonic waves simultaneously to the incorporation of the tube between 15 semi molds (3, 4), combining values of frequency and time according to the type of plastic material, the diameter of the tube (2) and the thickness of the walls of the same.

    [2]
    2. Method for forming tubes, according to claim 20, characterized in that the application of ultrasonic waves is carried out by means of at least one sonotrode (7) which, connected to an ultrasonic generator (8), heats at least the curved surface (5) of a first semi mold (3).
     25
    [3]
    3. Equipment for carrying out a method for forming tubes, as described in claim 2, characterized in that it comprises two semi molds (3, 4) in which respective complementary curved surfaces (5, 5 ') are contemplated with the form to be achieved, being at least a first half mold (3) provided with at least one head (6) with at least one sonotrode (7) connected to a device
    ultrasonic generator (8) and said sonotrode (7) arranged such that the vibration caused by the ultrasound produces heat on the curved surface (5) of said first half mold (3).

    [4]
    4. Equipment according to claim 3, characterized in that it comprises 5 several sonotrodes (7) connected to the ultrasonic generator (8) through heads (6) that heat the curve (5) of the first half mold (3) in the They are incorporated.

    [5]
    5. Equipment according to claim 3 or 4, characterized in that the second semi-mold (4) also incorporates one or more sonotrodes (7), coupled to heads (6) and connected to the ultrasonic generator (8), arranged in so that they provide heat to the curved surface (5 ') of this second half mold (4),
     fifteen
    [6]
    6. Equipment according to any of claims 3 to 5, characterized in that the ultrasonic generator (8) is a portable type generator, preferably with a power of about 1500W and a frequency of up to 20 HZ.
     twenty
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2547285B1|2016-09-14|Procedure for forming tubes and equipment to carry out said procedure
    JP2017505160A5|2019-02-14|
    AR107959A1|2018-07-04|CONTAINER WITH MOLDED BAG ON VALVE ASSEMBLY
    ES2571554T3|2016-05-25|Methods and systems for joining together or curing composite parts together using a rigid / malleable SMP apparatus
    JP2019514760A|2019-06-06|Method of welding moldings
    RU2010111246A|2011-10-20|METHOD FOR PRODUCING TUBES USING WELDING
    US20170015053A1|2017-01-19|Bonding device of door trim for vehicle
    KR101427164B1|2014-08-07|Quartz object vaccum forming apparatus
    CN101531040B|2012-08-29|Mould
    TWI607848B|2017-12-11|High temperature hot press molding machine
    BR112014030983B1|2021-08-24|METHOD FOR PRODUCING A BRUSH HEAD FOR A TOOTH BRUSH
    JP6388646B2|2018-09-12|Apparatus and method for manufacturing containers and container manufacturing ensemble
    KR101033828B1|2011-05-13|Manufacturing method of product and heat-treating apparatus for the same
    ES2489290B2|2015-02-25|Procedure for manufacturing a shower tray and shower tray obtained
    ES2276275T3|2007-06-16|PROCEDURE FOR THE THERMAL CONFORMATION OF COATING PARTS.
    KR101395676B1|2014-05-15|Air cushion mat manufacturing method and air cushion mat thereof
    JP2006116270A|2006-05-11|Infrared welded brush, non-contact hot plate welded brush single body and manufacturing method
    ES2444586T3|2014-02-25|Filter and manufacturing method
    TWM557740U|2018-04-01|Stacked molding structure and glass molding apparatus
    PE20030578A1|2003-07-08|TOOTHBRUSH MANUFACTURED FROM PREFORMED COMPONENTS AND THE HOT AIR WELDING PROCESS OF SUCH PREFORMED COMPONENTS
    US20160354954A1|2016-12-08|System and method for making hollow foam balls and other molded objects
    ES2245526B1|2007-04-01|Producing prototypes and soles for footwear, by forming negative in mold containing silicone or rubber layers and original, then refilling with polyurethane or resin
    TW201424993A|2014-07-01|Heat pressing equipment for electrical incense
    ES2679094A1|2018-08-22|THERMO-FORMED PROCEDURE OF A SOLID SURFACE |
    ES2605605B1|2017-12-22|MOLD FOR THERMOPLASTICS INJECTION AND PROCEDURE FOR THE USE OF SUCH MOLD
    同族专利:
    公开号 | 公开日
    ES2547285B1|2016-09-14|
    CN107530951A|2018-01-02|
    EP3284580A1|2018-02-21|
    EP3284580A4|2018-12-26|
    WO2016166399A1|2016-10-20|
    US20180178440A1|2018-06-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4957669A|1989-04-06|1990-09-18|Shiley, Inc.|Method for producing tubing useful as a tapered vascular graft prosthesis|
    GB9024619D0|1990-11-13|1991-01-02|Mckechnie Plastics Ltd|Thermoplastic hoses and tubes|
    US5422048A|1992-09-30|1995-06-06|Tokai Rubber Industries, Ltd.|Method of producing a bent resin tube|
    JPH09155988A|1995-11-30|1997-06-17|Tokai Rubber Ind Ltd|Manufacture of resin bent pipe|
    US20040258789A1|2003-06-19|2004-12-23|Phillips James D.|Tube bending apparatus and method|
    JP4347031B2|2003-12-04|2009-10-21|三桜工業株式会社|Plastic tube bending machine|
    DE102011100546B4|2011-05-05|2013-08-29|Daimler Ag|Flechtpultrusionsverfahren and plant|
    CA2906920C|2013-03-15|2021-01-05|Armour Technologies, Inc.|Medical device curving apparatus, system, and method of use|DE102017120143A1|2017-09-01|2019-03-07|Groz-Beckert Kg|Bending method and bending device for bending a composite rod|
    CN112008959B|2020-08-18|2022-02-18|长安大学|Device and method for bending FRPribs on site|
    法律状态:
    2016-09-14| FG2A| Definitive protection|Ref document number: 2547285 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160914 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201530499A|ES2547285B1|2015-04-14|2015-04-14|Procedure for forming tubes and equipment to carry out said procedure|ES201530499A| ES2547285B1|2015-04-14|2015-04-14|Procedure for forming tubes and equipment to carry out said procedure|
    CN201680030480.3A| CN107530951A|2015-04-14|2016-04-14|Equipment used in the method and execution methods described of Pipe forming|
    PCT/ES2016/070262| WO2016166399A1|2015-04-14|2016-04-14|Method for shaping tubes and equipment for carrying out said method|
    EP16779661.4A| EP3284580A4|2015-04-14|2016-04-14|Method for shaping tubes and equipment for carrying out said method|
    US15/566,394| US20180178440A1|2015-04-14|2016-04-14|Method for shaping tubes and equipment for carrying out said method|
    [返回顶部]