• 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:
    Portable machine for the peripheral displacement of a pipe, which is a portable device in which one of its ends has an expansive element closed by cones and which fits into the internal wall of the pipe, in which the machine also has of an electromechanical device that provides a circular movement that makes it possible to perform a clean, homogeneous and continuous peripheral displacement on the external surface of the pipeline by means of a cutting element located in a blade holder when the internal walls of the pipeline they are fixed by the expansive element, and in which the forward or backward movement of said expansive cylinder is determined by a forward rod which, starting from the free end and being driven by a control, axially travels the machine to the fixing area of The pipe. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2667068A1
    申请号:ES201631415
    申请日:2016-11-07
    公开日:2018-05-09
    发明作者:Jose PATIÑO ALVAREZ
    申请人:Navarro Saavedra Maria Antigua；
    IPC主号:
    专利说明:

    Portable machine for the periJérico displacement of a pipe.
    OBJECT OF THE INVENTION
    The present specification defines a machine for the peripheral displacement of a pipe, preferably of a plastic nature, whose objective is to allow in a fast and comfortable way that the external part of the diameter of the ends of a pipe can be cut to be able to connect it with other pipes to each other, for it is defined a portable device that fits into one of the mouths, adjusting to the internal walls of the pipe, and has a blade or abrasive element which, rotating with respect to an axis, allows the correct cutting of the cxterna face of said pipe in that area.
    Taking into account this type of machine, it can be said that the present invention is intended for the industrial sector related to hydraulic and civil engineering installations, and more specifically to plastic pipe assemblers.
    BACKGROUND
    In the pipe assembly sector, the problem of splicing two ulbos of a pipe is known. Depending on the type of pipe there are different types of splices, among which those that connect to the extreme mouths of the pipes to be spliced stand out, although in other types of pipes it is necessary that welding be done in said joints, in others they are glued or for example in others they screw.
    The present invention arises from the problem of this type of pipes that require that the connection be by means of direct coupling or by flange and / or connecting sleeve, which are usually pipes or conduits of a plastic nature of medium diameters, and that It presents the problem that when both ends coincide with the same diameter it is not possible to couple the two ends, and therefore it is necessary to reduce the thickness of at least one end so that it can be coupled. This problem also arises in other types of pipes when, due to a fault or the need to implement the network with an external element, it is necessary to cut a pipe and then reconnect the entire assembly.
    Typically, the cutting, beveling or peripheral displacement mode is performed manually by an operator who performs said recessing or profiling with a radial or similar friction or scraping element, such as the one defined in register ES 1065236U. This methodology presents the obvious disadvantages that the cut is not uniform, the thickness of the tube can be damaged causing subsequent leaks, in addition to the health and safety problems related to the cut by means of an electrical element in a trench or confined place.
    In order to improve this manual methodology, different machines that try to homogenize and improve the performance of a manual displacement have been introduced in this sector. In this sense, we highlight the machine defined in the EP2608939 register that presents an apparatus for cutting and beveling plastic pipes that consists of fixing the tube in a frame, moving it by means of rollers or similar elements, and in which there is a knife at one end, which is responsible for beveling or cylindrical. Although this device allows homogenising the cut in the outer peripheral surface of the tube, it has a device that is not transportable and can be installed in small spaces, since it requires a high-sized frame with a plurality of sliding elements and a specific area for cutting . In this sense, it is important to say that in the market there is the variety of this machine in portable mode, although there is no knowledge that it is registered, in which the idea that the tube is inserted frontally into the frame and fixed is respected by a series of rollers or rolling elements, and from that fixation the peripheral cut is made. Therefore, this idea of cutting or beveling and these machines not only differ in their methodology of carrying out the cutting, profiling, displacement or beveling, but also differs in the elements that compose it.
    Once the idea of portable devices has been introduced, other types of cylinders or chamfering machines have appeared on the market, among which the typologies that are anchored to the inner walls of the tube and have a knife driven by a motor stand out. These bevelling machines or machines for the displacement have the disadvantage that they only profile the end end, and do not allow or regulate the length or thickness of said bevelling. These types of machines are more used in rigid pipes of a metallic nature, in which the dimension of the bevel is not as important but that said bevel is as smooth as possible so that the subsequent rubber joint in the connection between pipes does not suffer. To overcome this problem, different solutions have emerged, such as those defined in US4845850, EP0672493 or EP1236529, in which a device is defined that has a clamp that is fixed to the tube and which has a radial blade that bevels the end end of the tube, and even in some cases it has an additional blade perpendicular to the axis of the tube that allows the clean cutting of said tube. As an improvement over these previous machines, the EP 132 121 O register is highlighted, which includes a head that allows both internal and external beveling of the tube, that is, it is focused on larger diameter pipes and a rigid pipe type . Although these solutions allow the radial blade to be able to move, all these machines require a manual fixation which, on one side, holds the clamp and on the other hand that the machine is operated, which for medium and high diameters is uncomfortable, in addition of being composed of elements that differ from the present invention.
    Taking into account the existing background in the market related to the present invention, the need arises to develop a portable machine, for the type of plastic pipes, such as polyethylene, polypropylene or PVC pipes, and for a range of diameters variable, mainly from 75 mm to 600 mm, of nominal outside diameter, in which a homogeneous and exact peripheral displacement of a dimension greater than a mere bevel is required, in which the pipe can be fixed to the machine so that the operator does not require efforts to fix or maintain the assembly, and also present a solution with which they can undertake the displacement of pipes of different diameters, that is, that the same machine can simultaneously perform said operations cutting pipes of different diameters, which cannot be done on any of the machines available in the market, and which by nOnTIa gene This is what happens in the workplace where in the installation of conduits there are usually pipes of different diameters.
    That is why it is considered that the present invention constitutes an innovative solution that differs from the configuration, structure and characteristics of any type of machine for peripheral displacement, cutting or chamfering of pipes, essentially in plastic pipes, and it presents a portable solution that can be used for pipes of different diameters without having to have different machines, and with which a fast, clean and homogeneous cutting or displacement is obtained, with the obvious operational and economic benefits that this entails.
    DESCRIPTION OF THE INVENTION
    This document describes a machine for the peripheral displacement of a pipe, which is a portable device that fits into the internal wall of the pipe and has a blade or cutting element which, rotating on an axis, allows the correct surface and peripheral cut of the external face of said pipe in that area, the type of pipe being those of a plastic nature and for a range of varying diameters from small diameters to medium-high ones.
    To reach this final objective, the three main actions required to perform peripheral displacement are highlighted, which are:
    - the adjustment and fixation of the machine to the internal walls of the pipe, for which the one defined at one of the ends of the machine object of the present invention is a device or expansive element;
    - the constant rotation of the cutting element on the external walls of the pipe, for which a rotating knife holder is actuated operated by an electromechanical device, which does not interfere with the fixing of the machine to the pipe; Y
    - the forward and backward movement of the pipe to perform peripheral displacement, for which a manual mechanism is developed that drives a
    internal rod that starts from the opposite end of the expansion cylinder tosaid expansive cylinder.
    Taking into account these three foundational aspects of the invention, it can be said that the machine for peripheral displacement is a linear device, in whose length the three previously defined elements are located.
    In this sense, it starts from the free end, that is, the end at which the pipe is not fixed. From this free end part of the ava.nce tube, which internally incorporates the start of a rod that runs inside the entire machine in an axial manner. This advancement rod, which in this area is protected by the advancement tube, is actuated at its end by a knob, crank or handle, preferably rotary, that is, that the angular movement produced in said command causes the rod to advance axially towards the other end of the machine, or back off.
    The feed tube connects with a threaded shaft whose purpose is to support the electromechanical device that provides rotation to the knife holder necessary for the work of peripheral displacement on the outer face of the pipe. The inside of this threaded shaft is hollow, and through this free zone passes the drive rod in the direction of the other end of the machine. The ro scado di spone shaft internally of a set of concentric bushings and bearings, whose function is to allow the union with the rest of the machine elements without the rotary movement that is intended for the blade holder being applied to them, and on the other hand allow the set to be linear and robust.
    At this point it should be noted that the blade holder is composed of a vertical plate that supports a cantilever arm whose end has the cutting element, blade, abrasive or scraping. This cantilever arm can be adjusted in height for the perfect displacement, beveling or cutting of the pipe. To regulate and fix said height, the vertical plate has a groove that is pierced by the cantilever arm, which at the initial end has a key or lock that is fixed against the walls of the plate. As mentioned, the knife holder receives the circular movement of the electromechanical device, in such a way that it performs a constant and regulated circular movement by said device. Since the blade is fixed to a cantilever arm also fixed, both the circular movement is stable, just as the cut on the surface of the pipe is clean, constant and homogeneous.
    Finally, the threaded shaft joins the support body where the expansive element is located, which is preferably a cylindrical element. This body has a reception area, which is the area that is in contact with the threaded shaft, and is an area that is hollow internally, such that it also receives the advancement rod. The reception area adjoins an inner stop that receives the advancement rod and causes that if the rod has the axial movement of advancement, the body moves in the same direction as the rod, whereas if the movement of the rod is of recoil, this body also recoils. The inner stop, in turn, adjoins the support of the cylinder, which is cylindrical in shape, and which is closed or covered at its end by a fixed cone threaded to said support. In itself it should be noted that the cylinder is a hollow cylinder in its axis, and that it is divided or divided in two, in such a way that it can be expanded. Said cylinder is closed at its ends by the fixed cone and by a crazy cone, which can be displaced depending on the diameter of the pipe, and which needs to be by means of a stop flange to the cylinder support.
    The operation of the expansion element, preferably a cylinder, is simple, the end cones squeeze the split cylinder, such that the ends of the cylinder slide along the inclined walls of the cones, increasing their outer diameter, until they stop the inner walls of the cylinder. At that time, the crazy cone is fixed by means of the flange so that the union between the cylinder and the inner wall of the tube is stable and stable. So that the expansion of the cylinder is stable and that the cones at its ends allow the final cylinder to continue having that cylindrical shape, on the outer face of the split cylinder two surface notches are made, in which a spring or spring element is located, in such a way that the tightening of said spring element causes the split cylinder assembly at the time of expansion to continue maintaining the cylindrical configuration, just as when the peripheral displacement has been completed, the springs push for turning. to initial standby configuration.
    At this point it is important to say that the preferred embodiment of the invention defines an expansive cylinder; however it is a way of defining an expansive adjustment method, therefore, the present invention may also have an expansive mandrel, expansive cones, expansive clamps or expansive discs, which keeping the same previously defined characteristic, that is to say sliding in front stops rise and have a mechanism for adjusting the shape, it can work regardless of whether it is a cylinder or another form of coupling to the inner walls of the tube.
    On the other hand, at the moment when the peripheral displacement is being made to the tube, the axial movement of the pipe so that the displacement or cut area is greater or lesser, is carried out by the movement of the advance rod. In this sense it is emphasized again that the cantilever arm that has at its end the cutting element or blade, has a fixed height, which can be modified when the blade holder is at rest, which means that when the blade It is in operation, the thickness or height of displacement or cutting is constant. Being constant, the length of the displacement is greater or lesser will depend on the movement made by the advance rod driven from the other end of the machine.
    In order to complete the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part thereof, where the following has been represented as an illustrative and non-limiting nature:
    Figure 1 is a free perspective representation of the machine for peripheral displacement of a pipe object of the present invention.
    Figure 2 is a free perspective representation of an exploded view of the internal elements that make up the machine for peripheral displacement.
    Figure 3 is the representation of the longitudinal section of the machine for peripheral displacement.
    Figure 4 is the representation of the longitudinal section of the detail of the adjustment of the machine with the pipe when the peripheral displacement is being performed.
    Description of the drawings
    In Figure I the representation of the machine assembly for the peripheral displacement of a pipe object of the present invention can be seen, in which it can be seen how the displacement (7 1) or cutting of the outer surface of the pipe (7). In this figure, it is also observed how the feed tube (1) starts from the free end of the machine, which internally incorporates the linear (not shown) rod that runs inside the entire machine in an axial manner. This advancing rod is actuated by a preferably rotary movement control (21) with which the angular movement produced in said control causes the rod to advance axially towards the other end of the machine, or back off. Then it is seen that the feed tube (1) connects with a threaded shaft (not shown) whose purpose is to support the electromechanical device (3) that provides the necessary rotation for the correct displacement. In this figure it can be seen that the blade holder is composed of a vertical plate (5) that supports a cantilever arm (6 1) whose end has the cutting element (6) or blade. This cantilever arm can be adjusted in height for the perfect displacement, beveling or cutting of the pipe. As shown, in order to regulate and fix said arm height (61), the vertical plate (5) has a groove (51) that is pierced by the cantilever arm (61), which at the end has a key or lock (62) that fixes it to the plate (5). As mentioned, the electromechanical device (3) generates rotating movement which arrives by means of the surface connection (4) to the plate (5) of the knife holder. Finally, the threaded shaft joins the support body where the expansive element (not shown) is located, which as can be seen in the figure is preferably a cylinder that is divided or cut into two symmetrical parts, which is closed by a fixed cone (not shown) and a crazy cone (81) fixed by a flange (9), such that the expansive cylinder rises by sliding on the inclined faces of the end cones and the internal walls of the pipe (7 ) are fixed to the body of said expansive cylinder, and finally it is seen how the cutting element (6) or blade performs the peripheral displacement or cutting (71) on the external surface of said pipe (7). As previously mentioned, the expansive cylinder refers to a preferred embodiment, but other expansive adjustment elements would also be possible, such as an expansive mandrel, expansive clamps or expansive discs.
    In Figure 2, various internal elements not shown in the previous figure can be observed. This is the case of the feed rod (2) that runs internally and axially along the entire central axis of the machine, from the handle (21) at the free end, to the receiving area of the expansive cylinder (8, 8 '), which can be seen that it is cut into two parts. Also in this figure it can be seen how the cylinder rests on a support (83), and is closed at its ends by the external fixed cone (82) and by a crazy cone (83), which can be displaced depending on the diameter of the pipe (7). In the central part it can be seen how inside the threaded shaft (31) there is a set of bushings and concentric bearings (32 and 33), whose function is to allow the union with the rest of the machine elements without that the rotary movement provided by the electromechanical device (3) that is intended for the plate (5) of the knife holder be applied to them. Finally, in this figure it should also be noted that in the area of the expansive cylinder (8 and 8 '), so that the expansion of said cylinder is stable and that the cones (81 and 82) of its ends allow the final cylinder to continue having that cylindrical shape, on the outer face of the split cylinder two superficial notches (84) are made, in which a spring or spring element is located so that, as already advanced in the description, the tightening of said spring element causes the Split cylinder assembly (81 and 82) at the time of expansion continue to maintain the cylindrical configuration, just as when the peripheral displacement has tended, the springs push to return to the initial idle configuration.
    In Figures 3 and 4 you can see the internal elements of the machine seen in section, at this point it can be seen again how the machine is formed along its length by a feed tube (1) that starts from the free end which incorporates the advance rod (2), manually operated from the control
    (2 1) at the end. The feed tube (l) is connected to a threaded shaft (3 1) whose purpose is to support the electromechanical device (3) that provides the necessary rotation for the correct displacement. The threaded shaft (31) has a set of concentric bushings and bearings (32 and 33), whose function is to allow
    union with the rest of the elements of the machine without them applying the rotating movement provided by the electromechanical device (3) that is intended for the plate (5) of the knife holder. The electromechanical device (3) and the plate (5) of the knife holder are connected by means of the surface connection (4). On the other hand, it can be seen how the knife holder is shaped by a vertical plate (5) that supports a cantilever arm (6 1) whose end has the cutting element (6) or blade. To regulate and fix said arm height (61), the vertical plate (5) has a groove (51) that is pierced by the arm (61) in blasting, which at the end has a key or lock ( 62) that fixes it to the plate (5). Then it can be seen how the threaded shaft (3 1) joins the support body (83) through a reception area (86). The reception area (86) in turn borders an inner stop (85) that receives the advancing rod (2) and causes that if the rod has the axial movement of advance, the body moves in the same direction as the rod, while if the movement of the rod is recoil, this body also recoils. In the area of the support (83) adjoins the inner stop (85), and in this area is where the expansive cylinder (8 and 8 ') is located, closed by a fixed cone (82) fixed by threading and a crazy cone (81) fixed by a flange (9), such that the expansive cylinder rises by sliding along the inclined faces of the end cones and the internal walls of the pipe (7) are fixed to the body of said cylinder expansive, and finally it looks like the cutting element (6) or blade performs peripheral displacement or cutting (71) on the outer surface of said pipe (7). You can also see in both figures the notches (84) intended for springs whose function is that the whole of the split cylinder (81 and 82) at the time of expansion continue to maintain the cylindrical configuration, as when it has been finished the peripheral displacement, the springs push to return to the initial configuration at rest. Finally, a representation of the operation of the expansion cylinder (8 and 8 ') can also be seen in Figure 4, and it is seen how when the feed rod (2) moves axially, the end cones (81 and 82) squeeze the split cylinder (8 Y S '), such that the ends of the cylinder slide along the inclined walls of the cones, increasing their outer diameter, until they meet the inner walls of the pipe (7). At that time, the crazy cone (SI) is fixed by means of the flange (9) so that the connection between the cylinder and the inner wall of the tube
    be stable and stable, taking into account that the crazy cone (81) and the flange (9) are fixed by tomillería (91) or similar means of consolidation.
    Described sufficiently in what precedes the nature of the invention, taking into account that the terms that have been written in this specification should
    5 be taken in a broad and non-limiting sense, as well as the description of the mode ofput it into practice, and, demonstrating that it constitutes a positive technical advance, istherefore the registration of the present invention is requested, being what constitutes theessence of the aforementioned invention what is specified in the followingclaims.
    权利要求:
    Claims (5)
    [1]
    1. Portable machine for the peripheral displacement of a pipe, which is a device in which one of its ends fits into the internal wall of the pipe (7) and has an electromechanical device (3) that provides a movement turning circle that allows peripheral cylindrical cutting or cutting (71) on the external surface of the pipe (7) by means of a cutting element (6) or blade when the internal wall of the pipe (7) is left fixed by the machine, and characterized in that a feed tube (1) is part of the free end of the machine, which internally incorporates a linear feed rod (2) that runs inside the entire machine in an axial manner and is actuated by a command (21) at said free end; in which the feed tube
    (one) connects with a threaded shaft (31) that internally has a set of concentric bushings and bearings (32 and 33), with the threaded shaft (31) being the one that supports the electromechanical device (3) and also supports a knife holder defined by a vertical plate (5) supporting a cantilever arm (61) whose end has the cutting element (6); the knife holder and the electromechanical device (3) being connected by a surface connection (4); wherein the threaded shaft (3 1) joins with a support body (83) of an expansive element (8 and 8 ') by a reception area (86) that has an inner stop (85), being received in said inner stop (85) to the advance rod (2) that advances
    or retract the support body (83); wherein said expansive element (8 and 8 ') is divided into two parts and is closed at one end by a crazy cone (81) fixed by a flange (9) and screwed at its end with a fixed cone (82); And in which the expansive element (8 and 8 ') slides along the inclined faces of the cones (81 and 82) of the ends such that the internal wall of the pipe
    (7) it ends up being fixed to the body of said expansive element (8 and 8 ").
    [2]
    2. Portable machine for the peripheral displacement of a pipe, according to the characteristics of claim 1, characterized in that the expansive element (8 and 8 ') is an expansive cylinder.
    [3]
    3. Portable machine for peripheral displacement of a pipe, according to thecharacteristics of claim 1, characterized in that the plate (5)vertical has a groove (51) and the cantilever arm (61) has a closure(62), in which arm (61) crosses the groove (51) and the closure (62) fixes the arm (61) in5 the plate (5) at the height required for peripheral displacement (71) by means of the
    cutting element (6).
    [4]
    4. Portable machine for peripheral displacement of a pipe, according to the
    characteristics of claim 1, characterized in that two notches are made on the outer faces 10 of the expansive element (8 and 8 ') (84)
    surface to include a spring element.
    [5]
    5. Portable machine for peripheral displacement of a pipe, according to the
    characteristics of claim 1, characterized in that the crazy cone (81) and the flange (9) are fixed by screws (91).
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    同族专利:
    公开号 | 公开日
    ES2667068B1|2018-12-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3699828A|1970-12-02|1972-10-24|Victaulic Co Of America|Pipe groover|
    US4614136A|1984-11-26|1986-09-30|Tri-Tool|Angularly adjustable mandrel assembly|
    US4682919A|1986-05-05|1987-07-28|Reed Manufacturing Company|Portable powered pipe working machine|
    法律状态:
    2018-12-11| FG2A| Definitive protection|Ref document number: 2667068 Country of ref document: ES Kind code of ref document: B1 Effective date: 20181211 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631415A|ES2667068B1|2016-11-07|2016-11-07|PORTABLE MACHINE FOR THE PERIPHERAL CYLINDER OF A PIPE|ES201631415A| ES2667068B1|2016-11-07|2016-11-07|PORTABLE MACHINE FOR THE PERIPHERAL CYLINDER OF A PIPE|
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