MXPA97002679A

MXPA97002679A - Fusion assembly for termoplasti materials

Info

Publication number: MXPA97002679A
Application number: MXPA/A/1997/002679A
Authority: MX
Inventors: B Kwasie Jon
Original assignee: B Kwasie Jon
Priority date: 1994-10-12
Filing date: 1997-04-11
Publication date: 1997-06-01

Abstract

The present invention relates to an apparatus for melting and supplying thermoplastic material, comprising a thermally conductive melting chamber, having inlet and outlet means, by means of which the material can be passed through the chamber to melt and provide the same, the camera has associated with it means for heating the chamber and a means of controlling the temperature to control the temperature of the chamber, the apparatus is characterized in that it comprises: a plurality of heat conducting blades, fixed, the blades they are separated from one another, substantially parallel with respect to one another and projecting into the chamber from a side wall thereof, the blades are furthermore situated in the chamber longitudinally thereto, the blades are furthermore longitudinally staggered with respect to each other, so that the blades progressively cut and melt the thermoplastic material as which moves through the chamber of the input medium to the outlet

Description

FUSION ASSEMBLY FOR THERMOPLASTIC MATERIALS DESCRIPTION OF THE INVENTION The invention relates to the field of "melt applicators" or "melt dispensers". Although the majority of the prior art (mentioned herein) tends to focus on the use of these applicators for the melt of adhesives, it is not intended to limit the scope of; this invention for this purpose alone, since it is applicable to the supply of any thermoplastic material. Broadly, the invention relates to new and improved fusion chambers for such dispensers. Any "melt applicator", "melt dispenser", "cement gun", "adhesive dispenser", etc., can be divided functionally and at least three groups of components: (1) A melt assembly or fusion assembly consisting of a thermally conductive housing "referred to herein as" melting housing ") having an internal melting chamber, a means for heating, a means for controlling or regulate the heating temperature (in some prior art this may be integral to the heating medium), wires or wiring necessary to connect the electrical components together and to supply electrical energy for the operation, a means d < conduit which allows the introduction of the thermoplastic material into the affusion housing (referred to as an "inlet tube", "guide tube", "tube fed" or "feeding tube", a means to join the bo entry, an exit or outlet means that has characteristic to join or fix a nozzle or valve or a similar device to limit, direct or control the flow of thermoplastic materials. For present purposes, this grouping of parts is referred to as the "assembly of the melt" or "fusion assembly". .2; A feeding means for advancing the thermoplastic material or materials within the previous melting assembly. In its simplest form, it could be the thumb or finger of the operator applying force directly to the material itself. More commonly, it involves some mechanism which, when external force is applied, holds, grasps or engages the material to be melted and then moves them forward to the fusion assembly. This force can be manually operated or hand pressed; mechanical, hydraulic or pneumatic pressure; motor or electric driven media; or any combination of other methods. (3) A means to locate, retain and protect the above elements (and the operator) and also include one or more of the following: handle or handles, box or outer boxes or housing; cables, power supply wires and / or connections; pneumatic or hydraulic supply lines and / or connections; separators; insulators; fasteners; openings or ventilation and the like. This invention is mainly related to a synergistic and unique group of certain parts, materials and / or features which are located within the first grouping of elements or "fusion assembly" as described above and the which offers distinctive and specific advantages over the prior art. U.S. Patent No. 4,637,745 to Speisebecher et al., Dated January 20, 1987, entitled "MELT DISPENSERS" is of interest for the background, mainly due to its discussion and description of "fins" and / or " Fin elements "as used in the fusion chamber of the device. The fin elements and the "subelements" are numerous and complex. The Patent Specification of Great Britain No. 1,402,648, published on August 13, 1975, entitled "IMPROVEMENTS IN OR RELATING TO APPARATUS FOR DISPENSING MOLTEN TH? RMOPLASTIC COMPOSITIONS" is of interest in several areas: (1) Describes a fusion chamber which is "substantially in W or V in the cross section "; although it fails to specifically describe or place numerical values or numerical / dimensional relationships in its description. What should be considered as fin elements in this patent are mentioned only as "undulations" or as a "wave perimeter". The corrugations are not pronounced and are not "blade-like" enough to be effective in penetrating and melting thermoplastic material. (2) Describe how a "thermostatic unit controls the heater to maintain the temperature of the material in the melting chamber at a desired level", but fails to be more specific as to the type of heater, type of heater (a part of the one generally described with an "electric cartridge heater"), place any of the numerical values in terms of their operating ranges, temperature ranges, etc. Only the temperature value shown in the full specification is 204.4 ° C (400 ° F). U.S. Patent No. 4,059,204 to Duncan et al., Issued November 22, 1977, entitled "SYSTEM FOR DISPENSING AND CONTROLLING THE TEMPERATURE OF HOT MELT ADHESIVE" is of interest in several areas. (1) The electronic circuitry is used in such a way that a set point of selected temperature, given "is automatically increased by a predetermined amount when the glue is flowing to compensate for the drop in temperature caused by the loss of heat to the glue and the atmosphere. " Reference is made to the effect that "the operator can adjust a desired temperature at which the glue is heated", but no numerical values are given for the temperature values. The patent seems to indicate a range in excess of 171 ° C (340 ° F). (2) A useful numerical value of 16 ° C (60 ° F) is shown as the value of the temperature difference between the melting chamber and the glue, when the latter is flowing through the melting chamber without the circuit of electronic compensation. (3) The use of standard cartridge heaters is indicated. British Patent Specification No. 1,562,926, published on March 19, 1980, entitled "IMPROVEMENTS IN OR RELATING TO APPARATUS FOR MELTING AND DISPENSING THERMOPLASTICS MATERIAL AND METHODS OF MAKING SUCH APPARATUS" er! or included because the apparatus in the patent applications what is described is an "electric heater" and "a ^" e? Toe H or "European Patent Application No. 90400216.9, publication No. 0 380 420 A2 , the applicant / inventor Peter S. Melendy, entitled "GLUE STICK AND APPLICATOR", filing date of January 24, 1990 describes a glue stick, specifically having an oval cross-sectional shape, and also includes a glue applicator to use the glue sticks The application suggests that only the input portion of the heating chamber (melting) needs to substantially resemble the glue stick and that it can "taper from the entrance to the circulating: -. A portion having a circular cross-section. "The present invention utilizes a similar design concept allowing the entry opening to accept alternating cross-sectional shapes / perimeters.United States Patent No. 4,774,123 to Michael. M. Dziki, issued September 27, 1988, entitled "THERMOPLASTIC BLOCK SHAPE AND MANUFACTURING METHOD" demonstrates alternative embodiments of thermoplastic materials having different, and / or alternating, cross-sectional shapes. No. 5,041,482 of Robert L. Ornsteen et al., Issued August 20, 1991, entitled "COOL MELT GLUE" is informative with respect to the preferred temperature ranges of the prior art thermoplastic materials and the application equipment. No. 4,523,705 of Richard V \. Belanger et al., issued on June 18, 1985, entitled "MECHANISM FOR GLUE GUN" deals with the n the issue of "excessive force" that applies to the use and operation of glue chips. Excessive force is usually applied when the user of the gun tries to force the cold glue through a heating chamber, which has not been given an adequate time to reach the optimal temperature for the operation of the pipe. The solution offered by this patent suggests the use of spring characteristics or mechanical fusion characteristics to compensate for the excessive force applied. The solution offered by the present invention is different. By providing a combination of improved temperature control and heating, together with an improved design for the melting chamber, the time to reach the optimal temperature for the operation of the gun or what is referred to as "time of recovery "is significantly reduced. The issue of "excessive force" is therefore avoided. US Pat. No. 2,389,686 to F. Reingiubei et al., Issued November 27, 1945, entitled "" "ERMOSTAT" "relates to a mounted surface of the type of expansion / conduction of the thermostat as it is preferred for this invention. Model "HP" Applicator from 3M Company: This tool has an adjustable temperature feature, which offers 7 specific temperatures, which are selectable by the user changing the interruption settings in an external controller (for the gun) of module / transformer located at one end of the electric cable. The temperature sensing device is a thermistor, which is located between the two heating cartridges of the product, all located on the same side of the fusion chamber. Sofragraf Model HM-318 (Terrel 1, 'Terian Model TMA-100); and Sofragraf Model PAC-318 (Terreil / Terlan Model TMA-101 and H.B. Fuller Model TMA-101) [Manufactured by Sofragraf Industries, St. Ame, FRANCE]. This family of tools uses adjustable temperature thermostats, which have an adjustable range from 177 ° C to 232 ° C (350 ° F to 450 ° F) by means of an adjustment button attached directly to the thermostat. The specific type of the thermostat having bi-metallic detection elements is not the preferred expansion / conduction type used in the present invention. The applicator has mechanical "seals" to limit the movement of the button, so that the minimum or maximum adjustment can not be exceeded. This model dates to a period of 1979-4980. Sofragraf Model HM-112 (Terrell / Terlan Model TM-80); Sofragraf Model HM-114, HM-115, (includes Regal R-1200X); Sofragraf Model PAC-113 (H.B. Fuller Model TM-81).

All these guns use thermostats that have bi-metallic detection elements. Hysol Model 2000, currently manufactured by Dexter-Hysol Corp. This gun does not use a thermostat, but also an electronic circuit with a thermistor detector for control; - ?: ei le ^ e- .:? E e heating of 100W. There is a potentiometer device to adjust the temperature, but it is very sensitive and small increases in the adjustment result in large temperature shifts. They do not seem to be superior or inferior "stop" features to limit the amount of adjustment. This general method of temperature control is very accurate and when the gun is inactive, the inactive temperature range remains within a narrow band of approximately -12 ° C (10 ° F). Unfortunately, once the dynamic loading conditions begin (ie the material is supplied), the temperature drops significantly. A.M.C. (Adhesive Machinery Corporation of Seabrook, New Hampshire) Model # 275HS. This tool has a small marker thermometer located near the exit opening of a fusion chamber. This is a prior art concept of a "temperature reference point". (No longer commercially available). A.M.C. (Adhesive Machinery Corporation of Seabrook, New Hampshire) Model # 350P, model name "Hipermatic 2.5". This model had an external control box which allows switching between a regular application temperature in the range of 193 ° -204 ° C (380 ° -400 ° F) and a "Sustained" setting at or below 135 ° C (275 ° F). It was later supplanted by the Model "SST-1" which has the characteristics of commutation within the same gun. (No longer commercially available). This invention offers improved efficiency in the melting of thermoplastic materials (including but not limited to adhesives) and is primarily rare to be used in what can be termed in the art as a "glue applicator", "melting jet", "melting gun". hot melt applicator "," melt applicator "," glue gun ", etc. It is important to note that this invention does not focus on a complete glue gun, but on the contrary it is related to the assembly of the component main used in these applicators for the heating, melting, homogenization and regulation of the temperature of the thermostatic material or materials, that is to say a fusion assembly or housing of tut.- As such, it can be incorporated in any di- in dispenser / applicator, many of which are already known &nt the technique.Using the hot melt adhesives in the range of 188 ° -204 ° C (370 ° -400 ° F), this invention in a gun of glue or similar provides highly improved melting rates, almost 45.4 grams / minute (0.100 ... fibers / minute) with an effective yield of 3 kilograms / hour (6 pounds / hour) using thermoplastic arr .3 of 11-12 mm in diameter, cylindrical and keeps the fusion output similarly consistent, regardless of whether it is the first minute or any minute ro s t i -; of the same. This melting rate is almost twice as high as 20-24 grams / minute as mentioned in U.S. Patent No. 4,637,745 (Spiesbecher et al.). This invention solves a problem hitherto unrecognized, since it is capable of less variation in the melt outlet between dense and / or high viscosity materials when compared to less dense and / or less viscous materials. Previous devices have shown a noticeable decrease in the exit of the melt with a higher viscosity and / or denser materials. This projection is measured in terms of weight over time, usually grams / minute (pounds / hour, pounds / minute). This was a new and unexpected result of the development. The invention for glue guns was recognized during the first tests completed in a glue gun embodying the invention. In most of the development of the modalities of the glue tiles that they incorporate in this inv ntion, a feature has been offered for the adjustment of the temperature in any range from the ambient of 21 ° C (70 ° F ^ to a theoretical maximum of 316 ° C (600 ° F). Initially, it is expected to operate in a temperature range selectable by the user from a minimum setting of 98.9 ° C (210 ° F) to a maximum setting of 210 ° C (410 ° F).? llj: -. :: - '""?'; It will be equipped with a characteristic that will act to prevent the user from exceeding either the lower (minimum) or higher (maximum) temperature limits. The combination of this wide temperature range together with such "seals" is a new improvement over the prior art and is believed to have never been claimed for similar devices using thermostats. In its most preferred embodiment, the invention provides a feature referred to herein as "temperature reference point" or "standard temperature location". It consists of a threaded or unthreaded cavity or indentation located in or near the exit opening of the invention and provides a common reference point for temperature measurement during manufacturing, calibration, field diagnosis, service and repair. The features of the fusion blade of the invention are improvements over the prior art elements shown as "fin elements" in U.S. Patent No. 4,637,745 and "ripples" as shown in the U.S. Patent Specification. Great Britain No. 1,402,648. The "fin elements" shown in the United States Patent are somewhat similar -: .- 1 .. < - and where they are substantially triangular and located longitudinally along a melting axis with small "ends" closer to the entrance end of the melting chamber, progressively increasing in height as it approaches the opening of the melting chamber. exit from the fusion chamber. The improvement over the United States Patent on the fins / blades includes but is not limited to: (1) The present invention uses fewer blades in a simpler configuration and the blades used in this invention do not contact each other within the fusion chamber, but are located substantially parallel to, and interspersed with each other. This allows for the least complex h.-amental and manufacturing capacity that is most technically reliable. (2) The lengths, angles, geometry, > ti- "empty of any of the openings of the same • u < t he individual lines are deliberately different, in such a way that no more than two blades will have the same physical geometry, or if they do so, no more than two blades will be These longitudinal "stepping" of the blades is more critical, because it allows the material to pass through the melting chamber to be sequential and to be "bifurcated" or "trifurcated" in smaller or less thick currents or sub-currents, this improvement decreases the "stall effect" or "suspension" experienced by the ~ -? N - ^ during the supply of the x.at er. '-: "" cp'.ásric;, s. This effect is the result of the depletion of a surplus deposit of molten material, which is formed when a fusion assembly is heated but not used for supply. Once the supply is started or resumed and this deposit depleted, there may be a subsequent inability to control the heating and temperature to "keep" it with new and relatively colder material that is introduced and advanced through the chamber of fusion. This is frequently misinterpreted by users or operators as a malfunction, operation disadvantage or failure and has been the focus of other patents of the prior art, etc. (3) There is no specific description in -a > US Pat. No. 4,637,745 with respect to the importance of having at least one of such a blade to bisect, intersect and extend through and beyond the axis of the center line of the fusion chamber. This feature only ensures that the relatively cold core of the material passing through the melting chamber is heated and properly homogenized with the hottest material around it. (4) The method or methods of the present invention of controlling heating and temperature are totally different and improved and offer improved operation to user adjustable settings. , 5 / There is no specific description as to any preferred setting of any blade in U.S. Patent 4,637,745. Some of the improvements on the Great Britain Specification (No. 1,402,648) "ripples" are that the cuicles of the invention are thinner, sharper and more "knife-like", more pronounced and are projected ! substantially more transverse or vertically upward and through the melting chamber, when viewed in cross section. These improvements because they offer better penetration and fusion of the thermoplastic materials as they are advanced through the • fusion chamber. When the present invention is adapted in a hand-operated application device, less hand strength will be required to supply the molten material. This will result in less hand fatigue and / or strain for the equipment operators in which this invention could be used. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a sectional view of a typical application gun with the separate parts c: ccrtt embodying the invention. Figure 2 is an exploded isometric view of the fusion housing and the chamber of the invention, which can be incorporated in a pistol n > l-tion, such as that shown in Figure 1, Figure 2 showing both of the external features and / or components of the invention. Figure 3 is an isometric sectional view of the fusion housing of the invention with the parts in a separate section, showing some of the internal features or easily shown in Figure 2. Figure 4 is a sectional view. cross section of the invention taken on line 4-4 in? a i iura 2, which. -t? to the preferred orientation of the components of the innovation. Figure 5 is an enlarged section in detail of a portion of Figure 4 illustrating the preferred geometric cross-sectional relationship of the features of the fusion pipe of the invention. Figure 6 is an electrical schematic for use with the invention. Figure 7 illustrates various locations of the heating element in the diagrammatic diagram. Figures 8 and 9 illustrate two alternative modes in an exploded perspective view to use the ~ ~ -ten.-. -is non-cylindrical thermoplastics i in ~? -. <; ? . - and squares). Figures 10 and 11 illustrate a configuration of five melting blades in perspective and side elevation, respectively, and better illustrate the concept / characteristics of the "longitudinal blade step". Figures 12 and 13 illustrate alternate embodiments in the section of the fusing blade configurations with all blades on the same side of the fusing chamber. A typical glue gun, dispenser or applicator device illustrative of the prior art as illustrated in Figure 1 as a hand pump suitable for use in melting and supplying heat-melting adhesive compositions supplied in the form of a stick. This device is more or less typical of those known in the art, which can make use of the new and improved fusion housing of this invention. Other designs will also use this invention to excel. The device generally has a housing 3 in the form of a hand gun with a holding portion 4, which can be conveniently held by hand by an operator and a barrel portion to a camera body 8 on which it is provided. " to?-.?-? .-; t your fusion adjustment. Chamber body 8 projects forwardly from barrel portion 6, as generally shown at 10, and a mouthpiece member 12 is threaded into an internally threaded hole F at an end portion projecting forward from the body Of camera. At the rear end portion of the housing 3 in the form of a hand gun, a conduit is provided through which a bar 15 of melting adhesive can be G fed. A rear inlet The end portion of the body of the chamber 8 provides an adjacent inlet opening 22, in which an inlet seal member 6 is mounted. and in the form of a tubular sleeve element or guide tube 17, which functions to guide the bar 15 through the inlet opening 22 within the fusion housing chamber 20. As seen in Figure 1, An elongated fusion housing chamber 20 is provided with a first portion 23 starting at the inlet opening 22 and a second portion 25 terminating the outlet opening 24. The camera body 8 for example, can be made of aluminum. The housing 3 can, for example, be made of plastic. The entrance aperture 22 proximate to the fusion housing chamber 20, the first portion 23 of the fusion housing has an ifr-dl-r-ne of cross section defined for example by a circular perimeter of substantially the same shape and diameter that the bar 15 (in such a way that it has the same cross-sectional shape as the circular bar, ', > ß 0"-; ----. The camera body 8 provides a hole 28 to contain a heating means for heating the thermoplastic material in the ale j di '? rt "aiasia, in the form of an electric heating element 30 connected by cables 46 and 47, as shown in Figure 6, to the thermostat 34 and to a source of The thermostat is controlled by a thermostat unit 34 to control the heater 30 to maintain the temperature < ii p-material in the fusion housing chamber 20 at a desired level A third cable 45 extends from the thermostat 34 to a power source also During the operation of the illustrative apparatus, the adhesive material or other thermoplastic material of the bar 15 is sufficiently soft by the time it reaches the region 25 so that it is easily deformed as it progresses through and through. more a of the region 25. Then the material, having passed through the second portion of the melting housing, can be supplied molten through the nozzle 12 with the operation by the operator.

• Feeding power, by which the pret .. ... .. -... in the melting distance by advancing the bar 15 causes the molten material to be expelled through the nozzle member. . The feeding means may be formed of a trigger 36 connected through the mechanical link generally indicated at 38 to one or more fastening elements 40 or if they are. The activation of the trigger _- * > . that the fastener element 40, which engages the bar 15, moves to the left in FIG. 1, thereby advancing the bar 15 in and through the fusion housing chamber 20. FUSING ACCOMMODATION: Features General Now with reference to tiguian 2 and subsequent, the center of this invention is > < i i va »what is the housing chamber body of fusiSn 3? I ñaña 20 and its disposition. It is manufactured from a thermally conductive, lightweight material and is generally longer than the overall length in its height or width. Within the melting housing body 8 is located the centrally located cavity substantially in the form of a "melt chamber" or "melting chamber" 20. At one end of the melt chamber 20 has an "entry opening" indicated generally at "> 2 1 -» - ^ 'al may be either an integral feature of the fusion housing or a separate part, which has been joined or joined by any means to ensure that there is no leakage • 'i 1- r.? L - "- to union during the operation In the t ... xt. -' .. or í. Al- am-r.-o of fusion there is an" exit opening ", generally indicated at 27 which, in a preferred embodiment is an integral part of the fusion housing but may also be a separate part as shown and which is joined or joined by any means to ensure adequate heat transfer without leakage of the material In Figures 2 and 3 the outlet opening 27 has been shown as non-integral to the body of the melting housing 8 for illustrative purposes.Three characteristics, namely the chamber 20, the inlet opening 22 and the outlet opening 27 substantially it shares the same longitudinal centerline or what is also referred to as a "melt axis" or "fusion axis" 31 (shown in Figures 1 and 2.) Integrally part of the fusion housing 8 and projecting within of the melting chamber 20 there is a plurality of fusing blades n 33 and 35 (best shown in Figure 3). The thermoplastic materials are introduced into the fusion housing - by means of externally applied force means - in the usual way through some attached feature or means known as an "inlet tube" or "feed tube :." such as feeding tube 17 and inside and through. Inlet 22. The materials then pass into and through the melting chamber 20 where they are heated and homogenized by the melting blades 33 and 35 in a more uniform consistency. It is not a critical feature that the shape of the cross section (exclusive of blade characteristics) of the fusing chamber resembles the perimeter of the cross section of the material or materials, that is, the bar that is melted. Two examples of cross-sectional shapes are shown: "round" in Figure 4, for example and "angular" in Figures 8 and 9. The molten material or materials that leaves the melting chamber and pass in and through the outlet opening 27. The exit opening usually has some means 13 (seen in figures' .. and 2) to attach or integrally insert some form of check valve or nozzle valve 18 to minimize any undesirable leakage amount of the molten material, when its flow has been interrupted by a decrease or cessation of the force applied externally. The melting housing body 8 is attached to it, as by screws or the like, a thermostatic assembly 34 mounted on the surface, a narrow tolerance cavity 28 for an insertion type of the heating device 30 and an integral feature mentioned in FIG. present as a temperature reference point 37 located on an external surface from the outlet opening 27 and consisting of a threaded and / or unthreaded indentation for the express purpose of inserting, attaching or attaching a measurement of temperature. This last feature is intended to provide a common reference point in manufacturing, calibration, field service diagnostics, repair and maintenance of the units of the invention. FUSING HOUSING: "Fusion Blades" Intt.gr aimente part of the fusion housing 8 are a plurality of fusing blades 33 and 35, which project from the interior wall or walls of the physiological housing chamber 20 These blades are designed to progressively and traditionally cut into and melt the material. 1 a ..... >; 3 ..; - p? ¡EG that has been advanced ati (-? Of the entrance opening.There are at least two general types of blades used: One or two "primary blades" 33L, 33R (L = left and R = right) (see Figures 1, 3, 4, 5, 7, 10, 11, 12 and 13) which are attached to the inner wall of the fusion chamber more _ '; , '- "and the heating source 30 and which are the longest blades (length) to be found inside the fusion chamber, and one or two" blades " -..-: ldii "35 which are shorter er_Ir.girud and located (in a preferred orientation) generally parallel to the blade or primary blades and in the most preferred mode are projected from the interior wall DGS" jsta: -; The fusion chamber is more adjacent to it. i.o temperature control or thermostatic 34. (See Figures ID and 11). There may be one or more "tertiary blades" 39L, 39R which are shorter in length than either the primary or secondary blades. Figures 10 11 and 12. All the blades first project into the melting chamber from the locations mentioned as "first acuity points". See Figures 3, 10 and 11. The first or first acuity points 33a of the primary blade or blades 33 are in longitudinal proximity closest to the entry opening, while the first acuity point or points 35a of the secondary blades 35 are substantially more separated from the tr ^ t '-. of entry. If the tertiary blades are used, then their points of sharpness 39a could be more distant from the entrance opening than either of those of the primary or secondary blades. The differences er. the longitudinal placement of sharpness points are referred to herein as "stepped blade" or "longitudinal scaling" and can be seen in Figure 3 and best illustrated in Figures 10 and 11. FUSING ACCOMMODATION: Values / Preferred Limits of Blade Geometry The most important features in the design of li '- "." Hi. The general fusion are: "that no more than two melting blades will run at the same georretry, or if more than two melting blades have substantially similar geometry, no more than two points of sharpness are longitudinally equidistant from the entrance opening. This "longitudinal staggering" of the blades is important, because it allows a more sequentialized melting process, especially during the conditions of constant output when new, relatively harder and colder material is being forced into and through the melting chamber. The benefit of this provision is that less force is required and decreases the "stall effect". (b) At least one blade must intersect, bisect and / n < > 't - -nd' - 'j;: < - more cilla of the axis of the central line length i ía 1 11? < > the fusion camera. This is critical due to the fact that the most central portion of the thermoplastic material is both penetrated and bifurcated by a brave blade. (C) The thickness of the most preferred blade is approximately one tenth (1/10). ) of the average diameter of the thermoplastic material and the space between the blades is also the same approximate value. (d) The maximum height of the central blade must be equal to or greater than 1/2 the distance between any of two opposite inner walls (exclusive of the same blades! of the fusion chamber. (e) L? ¡cuchi 1 Iri do not connect or intersect with each other in H i I l 'l ^ ntrr of the fusion chamber, but remain their; The 1st nient < j bitch Wounds to each other The dimensional geometry of the fusion housing of the invention and its integral features are substantially based on the geometry of the material being melted. the prior art deiine this materi as a ha i i a < In general cylindrical form, it is not intended that this description limit its scope by that form alone and any reference to the material of cylindrical shape is intended for illustrative purposes only.

) I Geometry I] r 1 1 UI 1 I 'III 11' / IK 1 c) "''] ii iii &i 'i. Medí Í) fil re? L l | | ni, (1 ii nuil lo, i id) '/. it ees on the if oima dt • ini ue-ve, at <? 1 mat nal which is going to be I mi lii l (imio .e 1 i,, "IV" 11 ji H .ua L the diameter of a tm 'iiild Ivn ii t er mop 1 ást i •, i is elliptical, "11" i pi i ii i I in li i (| | () j IU, M? < minimums with their Based on] value of "", the following general geometries are derived: The reference numbers of the di huios? ut I 1 Iiin leg 1 i reference "KEY" in the Tibia eflu nt, also see J s I'iguia 4, 5 and 7). lr ^ FUSION ACCOMMODATION; Characteristics of the Entrance Opening The main unit of the entrance aperture 22 is to provide a means of location or retention area for the entry t-ibo and associated seals (if required).

The size of the internal cross section and the shape of the inlet port is shown as illustrative in the Figures and should be slightly larger than but substantially similar to the perimeter of the cross section of the material or materials of thermoplastic bar are melted and supplied by means of the invention. The input can be either integral to the housing or it can be a separate part which is attached to the fusion housing. The main advantages of having the integral entry opening to the fusion housing are in reduced inventory, assembly stages and that there is less chance of the molten material leaking at a junction between the two elements. However, there are two distinct advantages to having the inlet opening as a separate component, which is attached to the fusion housing: (1) It is not necessary that the inlet opening be made of the same material as the fusion housing. For example, an improvement must be stopped if the material of the opening is more than the insulating material or the fusion housing. (?) It would allow for a potential capacity of greater ease and cost effective by adapting the complete fusion assembly for the purpose of melting material, which has di férente-; shapes or profiles of cross section. As stated elsewhere, alternative embodiments of the invention may use an i) supply of bar material having cross-sectional shapes, which are not cylindrical and may include material of polygonal cross section (ie triangular, square, pentagon L, hexagonal, etc.) or some other non-cylindrical shape. A patent application of the prior art (European Application No. 90400216.9 Patent, filed 24 January 1990, Publication Mo. i'PO 80 U0 - Sol icj t ant < / invent or: Peter S. Melendy) my I) I, 'I i' K n < í i < icv and veril ja ion both of the fibrií c i u and go o) of the atci, which has a section t i ansvoi; i i i 1 ma usl a ?? iiii ni i ova 1. PHI 'I IOS iln rt Proa the modalities to Lternati / as of 1 i invention are shown in the present in Figures 8 and 9: An example that is a version that has an aperture form of enti for melting materials that have a "triangulated" section (Figure 8); and the other, a version that has a form of entry opening for f? nin l mit i? allerqm? p? > idr one transverse X'R "i'iiadi id i '(1 i qu ti (t ^ I' clouding s ub impoitaní ene < ture enLrada January 22 i II I n ma c. I amica or a more elastic material such as nna si 1 i eopa or Vi ton Ceramics such as Sleatite (L 4 or pippiinr) or aluminum lte tefieieii lo 'ti? i'? \ Available from Superior Technical Cera ics Corporation of SL Albans, Vermont Aluminum silicate known as Duramic type M-120 is available from Wesgo / Duramic of Palisades Park, New Jersey The internal cross section diameter of the inlet tube 'must be aligned with the diameter of the internal transverse opion of the total and total aperture' >It must be fiercely greater than but susian, i a 1 u ut e pa > If we look at the size of section 1, look at the problem of evil. l or materials in tormoplasic bars that are melted and supplied or supplied to the river CONTEXT: TEMPERATURE: Frontiers The motto and the l,? temperature is important, I had to that d < = > It is necessary in a diverse range of requirements including accuracy, adjustability, ease of use (anointing, compactness, electric charge or x-ray ratio), size, simplicity, capacity of SO i saw or 1 O or us. Most thermoplastic materials have a preferred "application temperature" in which they will be obtained by dissolved pH. In the case of thermoset adhesives, for example, the most preferred joining characteristics and best overall results and performance will be obtained within a certain temperature range. It is important that the method for temperature control be kept as close to that preferred application temperature range as possible. If not, and the temperature is too hot, then the same material, it: its times that are attached pe > the material, and / or the application device that supplies the material, could routinely change the properties of the unit or possible damage, vu ad i m - p? or! I emended my thermal irritation piematuí. i? 1 i.UI to ur.i I lega a sei too cold or its limn m no ue] i t emp > ature of application pieferida, intone ':; pi obablemonte other problems will occur. These include a deficient or inconsistent i on of the substrates a difficulty in supplying the material due to fluctuations < ] < viscosity [with a corresponding fluctuation d < The sa 1 Lda of the material 'leading to, in many cases, the use of excessive force and possible damage to the application equipment to maintain consistent output. Improved temperature control is especially important in "industrial use" or "constant use" applications, where the frequency of use and the relatively greater output of properly heated materials are required. This is a t < ma common, which appears in much of the prior art. A good example of this is the fact that the invention of the invention of the invention is very important. iln d > - Mo. 4, < .7, 745.

For years, several general methods of temperature control and regulation have been used: (1) Thermostat devices or thermostatic devices; (2) Self-regulating heating devices or elements P.T.C. (- "Ce I'i ci e of Tem i atura Pos id i vo); (3) Control methods two by oi label or .le ..: r runic including thermistors and / or control of 1 and, (4), "Hybrid" systems that consist of a combination of methods.Each general method may offer different advantages or disadvantages when compared to the other methods. Aiterior technicians have only described in a general way the use of a "thermostat" or "thermostatic device", treating them essentially as generic articles, but failing: in distinguishing between different types, advantages of their specific construction, their location or their capacity to The use of thermostats is generally the oldest and thus perhaps the "most conventional" method of control of the temperature. A child remains. • • • • • • • • •! > > .i ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡- was in the majority of the team 'a i. > i. i e,. or ¡¡n manu l '' industri 1 '1. At the beginning of: the 1980s, the introduction and use of self-reclosing heating elements P.T.C. (Positive Temperature Coefficient) in ap I i i d l i > < It is possible to make the facts of a bad case. il 11111 nest "pal i nt acio when the voltage st api ii, cil i'Mit ni hasl ay? j april m a specifi i 1 temperature. Unite, foot met in high security at low cost because they eliminated Ja nec sity for a thermostat separ d '. 1 associated system, the assembly and cable modules I navoi? a I have a distinctive look to be layer, to operate at any voltage between 100-240 volts ele CA These PTC elements are used in almost all applications where the cost or adhesive ("glue guns") is applied to the consumer, handicraft / floral, hardware and hobby Unfortunately, the PTC elements They experience significant disadvantages: They are fixed temperature devices, not adjustable, they have a limitation on their capacity d ^ watt i je potential or "density eie watts", despite the fact that they have a "peak" eleven ?? ?? i u i i i i i i ro | , or e its point i i d 1 i i I n 11 u i u n. • μii 1 i ca 1 vamente, 1 i ?? I i ij i I n i i I n i 'i i i i i i i i i i i i i i I i i I i I i I i I i I i I i I i I i I i I i I i I I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I i I I I I I I I I I I I I I I I I I I I I I I I I I I i or reheat, when compared to rated heater / thermostatic systems. ' eei ?? v 11 eut f me nt < Unite pi de pegaineuato P.T.C. of the individual, typical element requires 6 to 8 minutes or more to warm up to its set point temperature. At the end of a period, the heated devices have thermal accuracy only after they have stabilized at their set point temperature and no material is flowing through them. In other words, "they are only accurate when they are not present." In any other way, they tend to either cool down or rapidly and take a substantial amount of time to recover the original set point temperature. they could work better in "intermittent use" applications, but the PTCs have been l '. diiiqidiu ni' 'my' iram < the use of the P r C mu ti ij i ei ai l ti ti o n t i t i n t i t i t i t i t i t i t i f th i f th i f th e States of the United States, i, i, 4, 1 icui i. i uit 1 i lt ii i ent do not give IC values as many times as they are combined with thermostats in nbric system. "A good example is that the mod. d (on? e? < il e? dt c n the glue gun "Cool Meit", which used a P.T.C. Theoretically controlled thermistor to maintain the temperature of the applicator in one year. '> i S ° C (200"i 280 ° D Another example of a hybrid system would be a" double-melting "applicator in which the temperature of the pinole applicator is between a range of 177-193 ° C. (350-380oK) (only P.T.C.) or a range of 93.3-121 ° C (200-250 ° F) (P.T.C thermostatically controlled). Such devices have appeared in the market. A system that regulates the temperature of the hot melt adhesive, electronically controlled is found! in U.S. Patent No. 4,059,204, which discloses an electronic and electrical system having the ability to compensate for the temperature drop i i i i i i i i .. -, i eue i cur when, the mat .. thermoplastic oo I arlii so sur ': undo with o.ibu this fluy w or through a mount of rus.bao da ei no ter ter qir compensates the tetnperatu a desw it a ee: complicated, potentially not eonfinble and expensive for e | UKU rough, abuse or difficult environmental conditions, which would be exposed in the industrial market. Other models of electronically controlled means of temperature control are found in Modeló Polygun "UP" ele? M v Poct or dlysol p. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • -: • together, either a control module oxt j.no (Ap Picador "HP" of 3M) or internal, ci rter i.a "i ??:. L u i da" Olysol 2000). The external controller do 3, M td '- "ie! I.? I r'i" inu nutes commutable "that an operator can select a temperature range (of a total of si' i i,. nor ii 11 ioii.? IIK ndado, usable). The ub i w 11 i l i i. i i i i i 11 1,,? , -. < • po | udic ral for d '' eiv | e, t •? | , ul i el o, μl (i) n l l l iu d nlo aclc. close to the clusl t., sol i same i 'ii -i ia o.?,? 'to 1 (1 i st My., or .Mi i, although very accurate, it has been better placed and the thermal operation generi l indicated watf and insufficient and poor homogenisation1 of the sunken fabric. the Hysol 2000 is excessively sensitive with very small increments that result in changes in temperature inaccurately, and therefore there is no "átenos" pa i a 1 nuil ai "the e-ant m? l d <; I adjust Pos methods that control the temperature ul i 1 i, c ios na ami 'applicators are more < ) St oos and ot t o ff e c o rn a nceding compared to ej 1 m l > What is the purpose of the proposal in i < \ present. In the case of the new adhesive lines, it is possible for me to ed i i <i nt r < acid, which are photographed, eijiecíi uunent ini limen n in applicators anios anios de Ii'tiijae i «ui a seguiJ cativamente por d < . d 'me i /' 0 ii 'i 400"shown in m.iyoi? ud I, toii ant • i ii.ie., ejemp specific est or podi as mcLiir the US Patent No 5,041.42 (Ornsteen et al) dated August 20, 1991 for "Con Meit Glue"; and the non-patented introduction of the adhesive "" I. < / A, H "x the applicators by 3M Company. H.B. Fnller lia d "UO 1 ri watts adhesives, which are designed pa tti ation, n a wide temperature annex include both of the ranges" cold fusion "and" hot fusion. "With the advent of new thermoplastic products designated for operation at specific temperature ranges, the issue of capacity adjustment uta tcmpenl has increased in importance. Although many applicators of the prior art have had some ability to adjust the temperature, the potential never fue1 exploded do plot I ely . I 'I i I.' my i do or I nt io ele > the temperature proposed in the ol i ece best performance in terms of simplicid- d, accuracy, eap.acirlad adjustment and low cost with this. In the wild, the "most preferred" mode of this invention will now be described with respect to temperature control. DEVICE, THERMOSTATIC This document describes the use of a specific type or class of thermostatic device known as an "expansion" or "driving" type thermostat. It is currently available in two forms: either a "surface mounted" type, or a cylinder cartridge form). This description focuses on the first type, i m i \ ct atura and so t in mu sure that the t remónt al os "'metallic" or "from CÍLSCO de' a ju te a pi" .iüi "ui 1? Zade? S? N niente, which are based on the use a temperature element of two metals, in many cases the latter type may be more literally easier to do, than its size eva rvament 'eoinjnct o, but the accuracy and reliability of the design are complicated by the design of the M >? M d il nvi "est i < 1 (¡i i tt or a different gingiva of I. aupe i d u ri di me n i i nub b p 11 ¡1 i op. t K e r y and i • i i i i i i i i i i i i i i i i i, i i i, < "an i e e t i e i i e" of i i t emperatio n with 0 ida une i that oii a ide ide of the additional fabt levante. therefore, it is very common to have a real accuracy or a minimum deviation of • > '' < 'I ") my atre opening and (i i l i i i. I i o b e l. M I or stra heat qi 1 i p i i i. 1 or i i' i i .el n Ut 11 hoisting the 1 ?? n (IAID "t do mu rondin?" ?? eff >. Gone, however, there is essentially only one setpoint and the switching accuracy or temperature difeiencia can be as little as 1 l t ° c (i / 2 ° F) depending on the method of ?? eilert still < > nt oy 1 i ubi ca m of the Rn t component (Practical miniatures, if there is sufficient wattage of heat and the whole of the components are all fi lled with each other, as is the flow of material thermoplastic, • • • The melting point, reduces its temperature of temperature, and the heating circuit is activated immediately, to maintain the pyro-melting characteristics or that the material and the invention is capable of melting more consistent thermoplastic material to the same time periods for a consecutively longer period The improvement in the operation of the fusion is especially true when compared to other fusion devices using bimetallic pressurized disc thermostats , or self-regulation of the temperature of the type of di speas? t ive heating PTC (Positive Temperature Coefficient.) The important critical improvements of this aspect for the invention are shown in Figure 2 and include the pebte r.2 of lug and. 1 cellar 'M. of catch to limit the (a '' ni i. iii i i b • npi atura minimum., i i i d. • i i i i i 'I n' l e "nise the Figures < 'o. i 1. i nai n < 1 • nor ','. > "It's not critical" mi. nt i r oue. i I o.! i M-? i o., i i assembled the agreement with the i in omeudaí lotn s d 'I ubi icante. This method is shown in the illustrations, which provides good heat exchange in the case of a 4-year-old 8 for purposes of < • (uit network) HEATING MEANS Heating physics 30 (observed better in R > ls F i qu 1,.}. < -,) jirelei laughs using photon heaters in MI t ur lu "devanid The resistance of the type of lining is standard, and heaters are available from many manufacturers in a variety of materials, dimensions and electrical wiring.

Superw tt Cartridge available from HOTWATT, Inc., 128 Maple • Street, Danvers, Massachusetts 01923. There is a measurable amount of latitude available to a designer to determine an optimal relationship between the heating medium (heater), the control medium the? r. t mpeí luie, 'a ubiquitous or ubiquitous, the mass t i i < 'l i? lo | join e) d tir-ión, l i which contains the camera d - • lu i on, l i i erb o. | i a d The electrical wire is very simple as is the Fujura 7. Thermal fuse 58 and related cutting connectors 59 are not critical to the operation of the invention, but are illustrated by What could? 1 ev compose! Is it preferred in one? < v < i a on 'my' i < i i 1 p 11 i < uitiμ 1 i i t n tequ i s i t o¡_. Regulators and I m I 11 1 i 'iii o, I un ion of encouragement t i i "I n" II i t e i i l. ' is, in a fixed configuration, to read the full operating temperature of the child. < oqupe-os, which is energized in jn a 11 (ii, n <, ni x I and / or int ei mptoj ignited); yenw \ il nod lidad urr pn Lei nía, in 150 s > qundos or less; (2) That, after any duration of the supply, and the device must recover its original temperature of ijus point in less than / b seconds, this 5 characteristic is that > known as "recovery time"; (3) That in its most preferred configuration, only one element of the individual cartridge heating tn (- ('go npn I icp n 1 i unite' is conditions yii I u 1 tilm ' in) ele J00 Watts ii 'i lo' i i i i i i i i i i i i i i l i i l i i l i i l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l tion and it is r i e "4"Necessary" if the wires 46, 47 of the heater cable are located or facing the front or the side of the heater hole. The heater element ^ 0 must be installed and properly tolerated. for heater hole 28 according to the recommendations of > The manufacturer. An alternative modality of ept ible ("monos praetor ida") would have one or more devices d < ralentnii nto ubtc idos denti or eie ßj qr aros of the arc in u i b i i i i i i i i i i i 1 or mu m t., I] | | i, i i / 'for per mi 11 ría the use of di po m < P? L? not even atl or mu I t i foot, or a heater i nd i v i d ?? i 1"i i i le 1 t en1 o" i < i 'juie i < OR I COMPONENT ENTRY In simple terms, the preferred modality is arranged as follows- The melting chamber 20 within its associated melting blade fomentations, should be located between the heating means 30 and the thermostat of the type of nebí ' I > d ¡u | i i n ii mi ni i '< q e 3 1 i modality i i i I i I i. u i n, heating I i i i i. i lu ni 'oo 1 i i j cuc melting charts "l i mui m" m i 1 n q i 4.1. and 7o 3 R e are located , - > n 'i i? < i i 'u ni id u < It is useful (1) to d (the melting rim "p 1111 eail iu that ii the rail-mounted woostat of the conduction 34 mount the sujieri ic re and one or more of the blades of fu 'i ót)" "OM", is ubi cid, substantially no 'aeenl' • ii 'nqn il'J I o opted (e. surface) of the bed i tt of i? s?' n (sides supei The lower orientation, as shown.) This orientation makes the best advantage of the use of individual components, especially when it comes to the thermodynamic materials. having thermally insulating properties and thermally insulating properties, although the fusion housing of the invention is thermally conductive.Therefore, durj.ant the ettic charging conditions (when the a 1 oimi enl et US 1 n o'it its temperature "inactive." i ?? di mil i MI II birds of him .Iia li | mi iod < fusion driver 1 i or Ul i i i to p U nmost t; although during i ai 1 M n i dinuiipo i (cuntid 'the material is f 1 avene.r> I t,? v; from the distant i or 1 fu) i?) more heat is absor? d < > dilectamente »po i 1 maten i tearmop 1 astico red at t vapie? t or more I t ni and the f in > In this case, the thermostat may act inactive (in the same way as the ear conditions). nin "one uuhdo") up to the time that the flow of m, e e e ti ti ti ti ti ti ti ti ti ti ti o o.................... 4f nin 1 nt ut as 12 and 13 other provisions of your lu You can use in which the blades are placed on the same side of the camera (in this oasc>? bottom side) OPERATION i mat ei i thermoplastic preoptimum , which may be in a solid or semi-physical state, is introduced (typically in the form of a bar 15) through the use of some good ipl icle ext ernamerte through the imenl i i i it. i i '. nt ro 1. the opening of iiil ii i 1 '(i> r' (the nal is a? rr ii ii l l l l; ii l in the merger 8 At the end 1 iiniuii < tt ^ a > a) You will not be able to reach the points 33a of "I can not use" one more blade. 1 The primary heaters 33b, 33R These blades they increase the height to nediela that are extended in the fusion chamber, pot read that the coi i the merger progí that deepest v edin in ed ill iiiin> pd iln>, n Im ni ifuwac '> u (por 1 < monkey 'uiueum -di plin? ld id (i i nt itt I u l i 1 a> VP otu the (i? hi I l-1?? 1 tti (ii ni jie qu i to aael ante, the 1 ad i -> nlo (1 ii tt iii 1 iie onl tlo first with the pin to "> iojimiiiuib 1 i mliil I secondary or 1 / cuchi 1 la rutiles also bifurcate or t rifurcan matér? a 1 < n m? When the heat loss of the melting housing in the relatively colder material is below the set point of the thermostatic device 34, how long does it last? j to the element of i Iii nt? • i more e when i heard the i) iiii birlo i su ?? oximiddd al 1 I the go | 1 i i c n | i directed in the l 0 t 1 'n' n i ll l i i i i I ?? ? t such new aunts that li l i (1 l i i) i I i i I < ir i de fu L m If the flow of mat oí ril l y mopla1 t ico > Auntie of the amalgamation process is constantly growing, a slow-moving element remains permanently enriched, 5 summoned, nelloved, and does not see the stable material of the material. In a 1 on 1 trial, I read 1 r l wit * tj ~ > 1 w warmer or il u id (i.) I t u l t i t the n uta that you are o nt "I t tiitiat ti ti ti ti ti ti ti ti ti nni i ni niinn i" tnperat mt del m »| mi M iltti empe) i 11 (i that i 1 Ilele gone | U 1 1 n i il i i i i i n i i i n i i n i i n i i n i i l l i i i l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l ll } to your i "- do not turn on your output 24 usually 5 dent yili ive I some form of attached or inserted nozzle 12. The material flow through the fusion assembly will stop when the externally applied force ends, Figure 8 suggests a "triangulated" system of an alternating modality and the Figure suggests a "square" system of a modal alternative between the specially shaped seals and the inlet openings 60, 62 and 22, respec tive, for being used sticks or brides from different types of leqameut. jospeci i vuiner * f the entrance tube 17 and the lower n and its related interior configurations Leas Previous examples and description are intended to be illustrative and not exhaustive.These examples and description will suggest many variations and alt For those with ordinary skill in this technique, these alternatives and variations are intended to be included within the scope of the appended claims. Those familiar with the technique, may recognize other equivalents for the given modalities and specifications in the present, which equivalents are also intended to be encompassed by the appended claims thereto.

Claims

CLAIMS 1. A system will melt and supply material tcpt? .phis ic, which has a thermal fusion chamber, which has means of entry and exit, by means of which the material can be done happens: aii av.-sd > M cunara j i to melt and supply the m nsme, 1 > i join i or m to associate it with > - The means to heat the cai. and a temperature index of the temperature for monitoring the temperature of the eainata, characterized in that the apparatus further comprises: a plurality of heat-conducting blades, fixed, the blades are separated from each other, Parallel with respect to one of the other and are projected into the chamber from a Literal wall thereof, the blades are furthermore located in the chamber leangitueiinally thereof, the blades are more longitudinally staggered with respect to each other. Yes, by reading that the blades progressively cut and melt the thermoplastic material as it moves through the chamber of the medium of entrance to the medium of sa 1 iela. j. di aj ti, lo 'jo oon urine Ieel ee.n claim I, cia-a). • What is I? n? i 1 n are in a way,? 1 ni'mt < ii, a? u 'ai, quo ii unen ext small paddles íelat 'vam < mi. < qinii'd • with the ext i emos small os closest ed i a1. d 'eju > •. ' I l i iímu.i, H such marera that the blades increase j o ogi o < 5 ivameuit e in height and are projected aeiemás dtuti 10 of 1 i e a i a as they approach the medium i i? n. i 'of ceuiioimidad with the claim 5 1 leg I honey ii * uunnislrai a body of the material t < rmoplást m, ol apa apaa is also characterized because: the c hi hi 'are free eleoloqation, usually in ti íangulai form and have small and relatively long ends, the n itl i r that < they are located in the camera 0 b uie ^ i t t i n t 1 i H mt o at 1 tt? o and parallel to the axis of the: sutás, < The small apertures of the camera entrance means that the blades increase vertically in height and are also projected into the camera as they approach the exit means of the camera. the blades progressively cut and melt the thermoplastic material as it moves through the chamber from the medium into the medium. > l? el? s in the rp.e an eijeluLla of the plurality is io, l n i i n t i lo n go it! e \ e of the line i I i i m 'i I < an i a / ne more than two (?.? i i, i 'illimmi' ei 'ma at the entrance, - I i < • iii • u 1 I lr foot e-- one in a position e (i' ni id i 'n? eho dn entry so that adeunas are l í ejue in the first two blades G mentioned eanad i. 1 Ll H n do d diifnj mirlad with the claim í, fell aet e? W hen jungue m pl ui 11 blade unit includes a roo of > F. The other, a type which is the longest and which is intimately associated with the "heating medium", the second tipe which is relatively shorter and associated with a "useful • • n> 1 anal LO from ooni The temperature of the end of claim 4 is determined by the fact that there is at least one blade of the first type and one of the second type 6. The apparatus according to the claim 4, characterized in that a third type of blade is included, which is the shortest of all. 7. The apparatus according to claim 3, characterized in that the thickness of the blades is about 1/10 the average diameter of the body of ??, lio i 1 i MI 'j 1 i < 1 i heard that -s fun 1 i ci i I j | n i 'i i ad a i' id < an I claim , r or í. 'l i n t i i JMI? c i u nt t - • the blades is d, p. i ii i i > uni I mu nt 1/1) '1 i aneti o of section i i mí-' - < ? l? ? iiui i > l I > u u v > 1 'm ll r i i a 1 t u mop 1 that v i .3 sei I und i o. The apparatus according to claim 1, characterized in that the height of the maximum blade of a central blade is at least approximately equal to 1/2) dist anm i <In this case, it is possible to compare the two thermoplastic maternal inferences that are going to be cast 10. The apparatus according to claim 1, has the power to control the The temperature is of the type of the LL.IJAR.IT or according to claim 10, characterized in that the temperature control means is of the type mounted on the surface. At least according to claim 10, it is raised because the temperature control means is of the cartridge type 13. The apparatus according to claim 10, characterized in that the temperature control means Milu MI uelirp- a half ele, maximum and minimum, for the first and last one, the second one, 14. The affinity to the one with an identity with the claim, Crii K The first thing to do is warm up one or more of the same. d "iatt uch> de retencion devanada ele ti ti po fo?? o located dentiod a 60 ° arc in any l adea of the vertical 1 centimeter of the combustion chamber 15. EL Apparatus according to claim 4, cann tei i zaeio j. that the heating means is located not in the chamber eb lusion of an arc ele "ß 0" r < ^^ ou ibutim 1 ulo of the central vertical p of the chamber of ln i e'ui, Hiiluí ele cont re 1 of the temperature is substance. mernt e nobie the central line above the mine or>; I m 'ón and I i plu i iity of i i i i ipe. qim are projected towards a i t i ba * In the chamber and a single cuch 1 The 1 sequndo t i o that is ejected down from the top of the chamber along the center line. Go, . The appearance of the originality with the re-vindication 1 C? rn < T rn i - jioteμio iiníluye a ceramic stone that gives a re lled to the fusion chamber.