JP2019098728A - Rod-like body, automatic thermal fusion device of pipe body resin part, and thermal fusion method thereof - Google Patents

Abstract

To provide a resin rod-like body with stable quality and good productivity, a fully automatic thermal fusion device and an automatic thermal fusion method of a pipe body resin part capable of heating a fusion end part evenly to a fusion temperature in shorter time.SOLUTION: The invention is characterized by that: a resin rod-like body and a pipe body component are positioned; in between, reciprocating heating means and means for holding and transporting the resin rod-like body and the pipe body component are arranged and positioned between the resin rod-like body before fusing and end parts of pipe body two component to be fused; the resin rod-like body and end parts of two pipe body components are heated simultaneously; for a hot wind feed pipe and a heating head part having a heat accumulation capacity, the resin rod-like body and hot wind discharge nozzles arranged approximately in a circle in accordance with vicinity of each end part of the two pipe body components; and the heating head part is formed with a cartridge heater.SELECTED DRAWING: Figure 1

Description

    The present invention relates to a thermal welding apparatus for rod-like body and tubular resin parts, and more particularly to an apparatus and a thermal welding method for automatic welding of rod-like bodies and tubular resin parts without manual operation.

    There are screwing, bonding, hot plate welding, ultrasonic vibration welding, laser welding and the like to join the material parts. While screwing has the advantage that it does not choose the material or shape of the adherend, it has the disadvantages of requiring the cost of a screw and requiring packing to ensure the difficulty of making the product compact and airtight. Bonding generally has advantages such as low equipment cost, etc., but running costs are complicated, adhesive management is complicated, coating amount, viscosity (temperature), working environment (organic solvent countermeasure) management is very, curing time is required, There are disadvantages such as long cycle time, difficult to obtain airtightness, and large deterioration over time. Hot plate welding can be applied to large objects / three-dimensional objects by making a jig, it has advantages such as simple equipment, no noise, easy airtightness, slow cycle time, burrs, yarn There are disadvantages such as the need for anti-pull measures, the tendency of the device to be large, and the high power consumption of the device.

  As background technology, ultrasonic welding and vibration welding have merits such as quick cycle time, low power consumption, and easy to obtain airtightness (however, it is necessary to devise the shape), but each type has its own type (horn ) Is required, the mold is economically expensive, burrs / dust are easily generated, there is a risk of burrs (foreign matter) falling inside the product, welding width is required, so it is not suitable for thin case and noises etc. there were. Laser welding causes no damage to internal parts due to vibration, low running cost of equipment, local heating, so there is little heat damage to products, no mold is required, burrs / dust are not generated, tight joint width is airtight While it has merits such as easy to obtain, it is necessary to devise materials (penetrant material and absorbent material), know-how is not generalized because it is a new construction method, and generally laser equipment system is economically high, it is easy to break down There were disadvantages such as

  Furthermore, in the prior art, the resin heat welding of the end face of the rod-like body and the tube part has been carried out manually or semi-automatically. The semi-automatic thermal welding also introduced a manual operation to the thermal welding process operation. In semi-automatic manual operation itself, even if it is an operation work such as one-half of one person, it is necessary for one person to stick fully, so the labor cost for one person (for example, several months converted to hundreds of thousands) Expenses of yen), there was a problem that the rate would be high. If it is not fully automatic, there is a problem that labor cost for one person, and labor cost that is an integral multiple of that, does not make a labor saving effect.

  In Patent Document 1, a compact main body 10; a pair of clamp members 20, 24 for detachably holding a pair of tubular parts P, P; and a heater 30 for melting the end faces of the pair of tubular parts by a predetermined depth. And heater driving means 32, 34, 36 for manually moving the heater between the heating position and the retraction position between the pair of clamp members; and relatively approaching the pair of tubular parts melted by the heater; Automatic control clamp member drive means 24, 26 and 28 capable of abutting and welding to each other, and a subtle difference as to whether or not the end faces of a pair of tubular parts have just a good melting depth. Disclosed is a handy-type semi-automatic welding device that can perform welding while suppressing wasteful control costs by performing judgment manually and others automatically. It has been.

  Further, in Patent Document 2, a main body 20 having a portable size and weight, and one end face of the main body 20 in order to abut and weld a pair of heat weldable resin tube tubular parts facing each other And a clamping member 30 slidably mounted so as to be relatively close to or away from the axial direction of the tubular part P to be held, and the end faces of the pair of tubular parts P, P held substantially equal in melting depth So as to be able to reciprocate between the heating position between the pair of clamp members 30 and the retracted position which does not prevent the relative approach of the clamp members 30, 30. A melting member 40 attached to the main body 20, a melting member drive means 50 for reciprocating the melting member 40 between the heating position and the retracted position, and a clamp member driving means 60 42 a pair of tubular component P is melted, the hand-held portable automatic welding device portable and be welded together with P relatively approaches and abuts disclosed by.

  Furthermore, Patent Document 3 solves the problem that the applicator is easy to dry and can not be used after a long period of use in a liquid product containing and applying unit, and can be used automatically under all conditions and clean To provide a unit for containing and applying a liquid product that is easy to hold, the application unit 1 containing a liquid product P, the container 2; the lid 5; the first made contactable with the product P An applicator 10 having an end 13 and a second end 14 opposite thereto, the second end 14 having a first position projecting from the opening 8 to the outside of the container 2 An application surface 15 movable in the axial X direction is formed between the application position) and a second position (return position) accommodated in the container 2, and the applicator 10 is capable of compressible absorption. At least one material Packaging and applicator unit of a liquid product that includes a lock 12 is disclosed.

  However, in the prior art including Patent Document 1, Patent Document 2 and Patent Document 3, after the Patent Office disclosed the patent and draft gazette in electronic text form, the following "welding" apparatus, heat welding apparatus, "welding" The method and the heat welding method were not disclosed. That is, between the end of the rod-like body and the two parts of the tube to be welded and joined before the “welding” joint, place it as a heating fixed position and simultaneously heat the ends of the rod-like body and the two parts of the tube The "welding" device, the automatic welding device, and the same "welding" method and the same automatic welding method have not been disclosed since the patent office disclosed the patent and draft gazettes as electronic texts. Further, particularly, the reciprocating heating means comprises at least one hot air supply pipe and a heating head portion having a fixed heat storage capacity, and the heating head portion is in the vicinity of each end of the rod and tube two parts. The heat welding device which arranges the hot air discharge nozzles arranged in a substantially circular shape and arranged in a substantially circular shape so as to correspond to the automatic heat welding device and the same "welding" method, "welding" device, "heat welding method" Has not been disclosed since the patent office disclosed the patent and draft official gazettes in the form of electronic text. And similarly, after the patent office discloses the patent and draft gazette in electronic text form, the rod-like body to be joined by "welding", supply / positioning of tube resin parts, movement introduction / positioning of heating means, rod-like body Thermal welding equipment that automates the entire process of heating the end of the tubular resin part, thermal welding of the end of the rod and tubular resin part, and removing the rod and resin part of the tubular body The "welding" method and the heat welding method were not disclosed.

  That is, in the prior art including Patent Document 1, Patent Document 2 and Patent Document 3, after the Patent Office disclosed the patent and draft gazette in electronic text form, the “welding” device or “welding” manually or semi-automatically Only the "welding" method was disclosed, and the welding apparatus and welding method for automating all the processes described in the L9 line of paragraph 0008 and thereafter and in the detailed description of the present invention were not disclosed. In particular, with regard to “resin welding of rod-like body and tube body parts”, only welding devices and welding methods for manual and semi-automatic thermal welding are disclosed, and all the steps described in L9 line of paragraph 0008 or below and in the detailed description of the present invention The welding apparatus and welding method for automating the entire process to be automated have not been disclosed since the patent office disclosed the patent and draft gazette in electronic text form.

JP 2003-170505 A Japanese Patent Application Laid-Open No. 10-16060 Unexamined-Japanese-Patent No. 11-11512 gazette

      In the prior art including Patent Document 1, Patent Document 2 and Patent Document 3, "welding" bonding, in particular with respect to resin thermal welding of rod-like body and tube parts, was carried out manually and semi-automatically. , Easy to assemble, easy to install, at the same time to satisfy waterproofness, water-return function, maintain the aesthetics, while absorbing the processing error of the thin roof member, assembly error, with good redundancy, less parts There was a problem that it was difficult to maintain stable durable quality effectively by the score. Although many automatic thermal welding techniques for sheet resins have been disclosed since the patent office began to disclose electronic patent publication texts, the technology for thermal welding of resin thermal welding of rod-like bodies and tubular parts is fully automatic, It was not disclosed.

  In Patent Document 2, in addition to the fixed type and the portable type, as described in claim 1 and the like, the melting is performed to substantially the same melting depth, and the ends of the left and right pipes P are There is a problem that the difference in the shape of the left and right beads occurs with respect to the center. As a result, when a fluid such as gas or liquid is allowed to flow into the pipe P after welding and joining, there is a problem that turbulence is generated in the inner circumferential direction and the axial direction of the pipe P in the vicinity of the bead. There is a problem that the tube friction resistance in the axial direction of the pipe P becomes abnormally large in the vicinity of the bead. There has been a problem that misalignment of the left and right pipes P occurs after welding. As a result, there is a problem in that the difference in tube friction resistance in the axial direction of the pipe P becomes abnormally uneven with respect to the circumferential direction in the vicinity of the bead. As a result, there has been a problem that turbulent flow occurs in the flow of fluid such as gas or liquid flowing in the circumferential direction of the pipe P after welding and joining. There is a problem that the entire axial flow of fluid such as gas or liquid flowing in the pipe P is obstructed. When flowing medicines such as drips into the pipe P after welding, these fluid phenomena cause problems and problems in medicine efficacy and safety.

  Furthermore, in Patent Document 2, in addition to the entire apparatus being portable rather than fixed type, as described in claim 5 and other specifications, it is preheated to a predetermined temperature before inserting into the heating position. Since it is a technical feature that stops the supply of electricity after preheating and then inserts it in the heating position, the melting temperature of the resin during the short time to insert is melted immediately after the supply of electricity is stopped. Since the quenching is performed with the force exceeding the temperature range, there have been problems and problems with fluid tightness of the welded joint. When the temperature drops by 1.2 ° C. at the surface temperature, there has been a problem and problem that the fluid tightness defect rate at the joint portion such as a pinhole and a crack becomes large after welding.

    Then, in Patent Document 2, as described in claim 6 and the like in the specification and the like, by attaching a cooling blower to a predetermined position of the main body and causing it to act, convection is generated before and after heating to the atmosphere around the heating unit. There were problems and issues that would occur. When the diameter of the rod and tube parts is about 10 mm or less, the waterproofness and airtightness of the welded part will be reduced even under environmental conditions where convection is not generated as much as possible before and after heating to the atmosphere around the heating part. , There was a problem. The beads were large and irregular, and the flow resistance through them was increased, and there were problems or problems of generation of turbulence. When this welded tube is used in the medical liquid chemical injection process, there are problems and problems that cause abnormality in drug efficacy and safety. Here, in Patent Document 2, as described in claim 6 and the like, when the air is blown by the cooling blower at the time of heating, before and after the heating, the problems and problems described before the L7 line of paragraph 0014 are further increased. There were problems and issues.

  Further, in Patent Document 2, although the problems and problems described in Paragraphs 0011 to 0012 are induced in conjunction with the problems and problems described in Paragraphs 0013 to 0014, it is described in Claim 8 and others. If an emitter made of a material capable of emitting far-infrared radiation with an emissivity of 0.5 or more, preferably 0.6 or more, is used, as described in claim 7 and so forth. There has been a problem that the surface of the radiator can not be made less than 250 degrees C to less than 580 degrees C. In addition to being unable to make the surface of the radiator less than 250 degrees C to less than 580 degrees C, there were problems and problems described in paragraphs 0011 to 0014. In patent document 2, the problem by the temperature distribution cause of a heater, the problem which has not solved the subject, and the subject existed. Thus, Patent Document 2 can not completely deny the possibility that portable welding can be performed, but there is a problem or problem that it is impossible to obtain fully-fixed automatic welding and to obtain minimum welding quality. The

  Furthermore, in Patent Document 3, as described in claim 24 and the like and claim 27 and the like and others, the intermediate member (22) is described as welding of resin, but the intermediate member (22 And 0015), and there were problems and problems described in paragraphs 0011 to 0015.

  The present invention is directed to a rod-like body, an apparatus for automatically welding thermal resin parts of tubular resin parts and a thermal welding method therefor, which solves the problems and problems described in paragraphs 0011 to 0015. It is an object of the present invention to provide a thermal welding apparatus and a thermal welding method according to the present invention.

  In order to solve the problems and problems described above, according to the present invention, a pair of heat-weldable resin rods facing each other; A tube part is disposed at a predetermined distance substantially coaxially, and between the end of the resin rod and the tube part to be welded and joined, the heating means is automatically reciprocated between the heating fixed position and the retracted fixed position Means for restraining, clamping, and positioning the resin rod-like body and the tube part by air cylinder reciprocating movement by the air cylinder, and means for gripping and moving the resin rod-like body and the tube part near the positioning position. After the reciprocation, heating between the two different ends of the resin rod and tube parts reciprocates the heating means which reciprocates automatically with the linear operation electric power cylinder, and welding is performed. Join Between the resin rod-like body and the end to be welded and joined of the two parts of the tubular body, the heating rod is positioned as a heating fixed position, and the ends of the resinous rod and the two parts of the tubular body are simultaneously heated; The reciprocative heating means comprises at least one hot air supply pipe and a heating head having a fixed heat storage capacity, and the heating head is provided in the vicinity of each end of the resin rod and tube two parts. To arrange the hot-air discharge nozzles arranged substantially circularly and symmetrically in a substantially left-right symmetric manner.

<Simultaneous heating effect according to claim 1 of the present invention>
Since the present invention can simultaneously heat the ends of the resin rod and tube two parts, the melt solidified portion bead of the end of the resin rod and tube two parts (hereinafter referred to as a bead according to the bead of arc welding technical terms) In this case, the end portions of the resin rod and the two parts of the tube are not heated at the same time, and the effect and effect can be reduced compared to the conventional example in which only one is heated. By contrast, the resin rod-like body and the joint surface of the end portion of the tube body are melted and solidified, so that the appearance of the bead becomes clear. As a result, when the fluid such as gas, liquid, powder or viscous material flows in the axial direction and in other directions into and out of the resin rod-like body and the tube part, the flow becomes good. Play an effect. Further, the action of reducing the turbulent flow when flowing a fluid such as gas, liquid, powder or viscous material in the vicinity of the end bonding bead of the resin rod-like body and the two end parts of the tube body is exhibited. As a result, when the fluid is a medicine, the action and effect of enhancing the drug efficacy and safety are exerted. In addition, the effect of improving the dimensional accuracy in the axial direction in the vicinity of the end portion of the resin rod-like body and the two parts of the tube body and in the interface direction is exhibited. And the effect | action and the effect | action which the roundness of the resin rod-like body vicinity of the edge part vicinity of two parts of a pipe body improve are show | played. The effect of improving the roundness of the bonding bead is exhibited. The axial inclination of the resin rod-like body and the two tube parts is reduced, and the action and effect of improving the cylindricity of the integrated resin rod-like body and tube are exhibited. As a result, when the fluid such as gas, liquid, powder or viscous material flows in the axial direction and in other directions into and out of the resin rod-like body and the tube part, the flow becomes good. Play an effect. Further, the action and effect of reducing the turbulent flow when fluid such as gas, liquid, powder, viscous material and the like in the vicinity of the end bonding bead of the resin rod-like body and the two parts of the tubular body are further improved.

<A stable heating effect of the end portion of the resin rod body and the two tube parts according to claim 1 of the present invention>
The present invention comprises at least one hot-air supply pipe and a heating head having a fixed heat storage capacity, and the heating head corresponds to the vicinity of each end of the resin rod and two parts of the tube. Since the hot air discharge nozzles arranged substantially circularly and symmetrically in a substantially circular shape are arranged, heat is supplied from at least one hot air supply pipe, and the hot air discharge nozzles are arranged in a substantially circular shape, whereby the hot air is heated by the heating head. Since heat exchange and heat transfer occur in the process of passing from the part through the nozzles arranged in a substantially circular shape, the effect of reducing the thermal unevenness in the substantially circular radial direction and the radial direction is exhibited. As a result, the effect of reducing the unevenness in size of the bead in the circumferential direction is exhibited. It works to make the appearance of the bead clearer. Then, the action and effect of the seventh and subsequent lines of paragraph 0019 are exhibited. With regard to the heating head for introducing such hot air, when the patent office started to conduct electronic text processing and examined the heating head after that, an output nozzle was found at the place corresponding to the intersection point of the grid in relation to printing. There is a prior art which arranges and arranges a slit-like nozzle, but heats the whole plane, and as in the present invention, the welding end of the resin rod body and the two parts of the tube body is evenly distributed over the center. There is a problem in heating, and there is a problem that waste of heat energy is generated by evenly heating the entire plane. In the present invention, the function and effect of heating the welding end portion of the resin rod-like body and the two tube body parts to the welding temperature more effectively and uniformly can be achieved in a short time. As a result, it is possible to reduce the tact time of production and to exert an effect.

<Full-automatic effect according to claim 1 of the present invention>
Although many automatic thermal welding techniques for sheet resins have been disclosed since the patent office began to disclose electronic patent publication texts, the technology for thermal welding of resin thermal welding of rod-like bodies and tubular parts is fully automatic, Although not disclosed, a technique for automatically positioning a heating head having a certain heat storage capacity as a heating fixed position in the vicinity of the resin heat welded end of a rod-shaped body or a tubular part is not disclosed. The There has not been disclosed a fully automatic technique in which a heating head having a constant heat storage capacity is automatically positioned as a heating fixed position, and rod and tube parts are also automatically supplied and positioned in the fixed position. In the invention according to claim 1 of the present invention, in the step of positioning and heating the end of the rod-like body or tube part with a heating head having a fixed heat storage capacity, and the step of supplying and positioning the rod-like body or tube part Can be fully automatic. Rod body, tube parts supply process, positioning process, clamp restraint process, heat source head section insertion process, rod body, tube body parts end heating process, heat source head section evacuation process after heating, welding process, integration after welding There is an effect that the process of taking out the rod-like body and the tube part can be fully automated.

  In the semi-automatic heat welding, the prior art has introduced a manual operation into the heat welding process operation. With semi-automatic manual operation itself, even if it is an operation work for one half of a person, it is necessary for each person to stick in full, so the labor cost for each person (for example, several months converted to hundreds of thousands of yen) Cost) and the rate of pay, but for claim 1 of the present invention, the labor cost for one person (for example, the cost of several hundreds of thousands of yen converted monthly), the effect that the rate becomes unnecessary, Play an effect.

  Furthermore, in order to solve the problems and problems described above, the present invention is arranged in a substantially circularly symmetrical, substantially circular shape so as to correspond to the vicinity of each end of the resin rod and tube two parts in the heating head of the heating means. The arrangement of the air heater nozzle portion is performed by making the diameter of the substantially circular arrangement line to be arranged substantially the same as the cross sectional diameter of the resin rod and the two parts of the tube.

<Operation and effect according to claim 2 of the present invention>
The present invention arranges and arranges the air heater nozzle portions arranged substantially circularly and substantially circularly in the heating head portion of the heating means so as to correspond to the vicinity of the respective end portions of the resin rod body and the two tube parts. Since the substantially circular array line diameter is made substantially the same as the cross-sectional diameter of the resin rod and tube two parts, from the heating head, efficiently in the vicinity of each end of the resin rod and tube two parts, short time Since the heat is transferred by heat and the welding temperature is reached early, the number of steps can be shortened, and the production efficiency can be improved. Since the input energy can be relatively reduced, the electricity cost can be saved, and the function and effect contributing to the suppression of consumption of fossil fuel which is the source of electricity can be achieved. In the configuration including the air heater nozzle portion and the heating head portion, since the heat source is not held here, the heat source control wiring and the like become unnecessary, the device becomes simple, and the failure becomes difficult. The capacity of the heat source can be increased, and the heat source of the automatic thermal welding device for a plurality of rod-shaped bodies and tubular resin parts can be shared. In general, such an external concentrated heat source can raise the temperature of the heating head portion of the heating means at an early stage, and exhibits an action and an effect of enhancing the productivity. And the effect | action and effect as described in Paragraphs 0019-0022 are produced.

  Further, according to the present invention, the heating head portion of the heating means is provided with air heater nozzle portions arranged substantially circularly and substantially in a circular shape so as to correspond to the vicinity of each end of the resin rod and tube two parts; The substantially circular arrangement line diameter which arranges an air heater nozzle part is made by making the substantially circular diameter of an air heater nozzle part larger than the cross-sectional diameter of resin rod body and tube 2 parts.

<Operation and effect according to claim 3 of the present invention>
As described above, the air heater nozzle has a substantially circular arrangement line diameter for arranging the air heater nozzle portion, in order to make the substantially circular diameter of the air heater nozzle portion larger than the cross sectional diameter of the resin rod and tube two parts. The hot air output from the part causes the bead to be enlarged or deformed, including the residual heat near the axial direction of the end of the resin rod and tube parts and the post heat (smoothing temperature lowering time) effect It is easy to avoid the action, to play an effect. After welding, it has an effect and an effect of suppressing the fall of the axial direction of the resin rod-like body and the two parts of the tube and the reduction of the cylindricity. The function of suppressing the decrease in roundness of the rod-like body and the tube in the plane perpendicular to the axis in the vicinity of the welding surface of the resin rod-like body and the two tube parts after welding is exhibited. The effect of reducing the change in thickness with respect to the thickness of the material is achieved by the axial shrinkage toward the welding surface of the resin rod-like body and the two parts of the tube after welding.

  Further, according to the present invention, the heating head portion of the heating means is provided with air heater nozzle portions arranged substantially circularly and substantially in a circular shape so as to correspond to the vicinity of each end of the resin rod and tube two parts; The diameter of the substantially circular array line to be arranged is smaller than the diameter of the cross section of the resin rod body and the two parts of the tube, by making the diameter of the substantially circular air heater nozzle portion smaller.

<Operation and effect according to claim 4 of the present invention>
Air heater nozzle parts arranged substantially circularly and substantially circularly symmetrically so as to correspond to the vicinity of each end of the resin rod body and two parts of the pipe are arranged in the heating head part of the heating means and arranged in a substantially circular shape The heat treatment time for welding is shortened by reducing the diameter of the circular shape of the air heater nozzle part from the cross sectional diameter of the resin rod-like body and the two parts of the tube, thereby shortening the tact time and cycle time. Function to improve production efficiency.

  Further, according to the present invention, at least one hot air supply pipe of the heating means, and a heating head part for arranging a cartridge heater instead of the heat supply means of the heating head part of hot air discharge having a constant heat storage capacity. It consists of.

<Operation and effect according to claim 5 of the present invention>
The cartridge heater is easy to control the heat source, is safe, can set the welding temperature control sensitivity high, and has the function and effect of facilitating the welding temperature condition setting. Although there are FIREROD (registered trademark) manufactured by WATLOW Inc. in the US, various specs, standard specifications, and custom-made specifications can be procured in Japan, thus contributing to the reduction of production cost as an industrial welding apparatus and welding The operation and effect of improving the welding controllability of the apparatus are exhibited. That is, at the time of setting out the conditions for welding, the size of the diameter, length, etc. of the resin rod body, the two tube parts, the diameter, length, etc. of the resin rod body, the tube two parts, and the automatic machine standard grip portion The resin rod-like body and tube in consideration of the relative size of the two parts of the tube, the diameter of the two parts of the tube, the relative size of the automatic machine standard grip part and the size of the automatic machine inside peripheral part. It has the effect and effect of being able to select a cartridge heater that is physically appropriate so that the welding conditions can be optimized for the two parts. And, the air tightness of the bead part, the bead shape, the resin rod-like body, and the two parts of the fluid inside and outside of the tube body become the fluid resistance with eight contrasts, the welding characteristics with the least turbulence, the most good controllability, the most rise The effect of selecting the early cartridge heater is effective. In terms of heat supply, when a problem occurs after repeated use and a welding failure occurs, by replacing only the cartridge heater, the function and effect can be achieved to restore and maintain the welding performance. Good maintainability and low maintenance cost.

  And at the same time, after welding, the axial fall of the resin rod-like body and the two tube parts is good, the cylindricity is good, and after the welding, the axial fall of the resin rod-like body and the two tube parts and the decrease of the cylindricity is the least. And, after welding, the rod near the welding surface of the resin rod, two parts of the tube and the rod, there is little decrease in the roundness of the pipe in the vertical plane, and the welding surface of the resin rod and two parts of the tube is The effect of the effect is that it is possible to select the best cartridge heater with a small bead and an appearance such as an aesthetic appearance by minimizing the axial shrinkage directed to the wall and the thickness change with respect to the thickness of the material. In addition, when the welding quality of the fully automatic thermal welding apparatus changes with time and changes with time, the cartridge heater is replaced with substantially one touch, and the maintenance property for maintaining the welding performance is good. In addition, it is easy to replace cartridge heaters of different specifications with almost one touch when starting production of welding of resin rod-like body with different diameter, thickness and material and tube two parts in the same fully automatic thermal welding device. It is possible to optimize the production of two parts, such as resin rods having different diameters, thicknesses, different materials, and tube parts.

    Further, according to the present invention, the resin rod-like body, the respective end portions on the side of joining and welding the two parts of the tubular body, and the resin rod-like body of the heating head portion and the ends which heat the two tubular body parts do not contact each other. It arranges parallel and heats each end of the side which joins and welds resin rod-like object and tube two parts.

<Operation and effect according to claim 6 of the present invention>
According to the present invention, since the resin rod body of the heating head portion and the end portion for heating the two parts of the tube body are disposed substantially parallel with a clearance without heating and the heating is performed, the air performs an appropriate heat insulating function and the resin rod body The heat-welded end portion of the two parts of the body and the tube can be prevented from being abnormally heated and melted or vaporized, and the effect is exhibited. Since the resin rod body, the resin rod body of the heating head portion of the heating head portion in the vertical and horizontal directions of the end of the two tube parts, and the clearance for heating the two tube parts can be made substantially constant without contacting each other In addition to the action and effect described in paragraph 0020, the action and effect can be achieved that the heating can be performed more uniformly over the entire circumferential direction of the end portion of the resin rod-like body and the two parts of the tube body. At the same time, the action and effect described in paragraph 0024 are exerted.

  Further, according to the present invention, the resin rod-like body, the resin rod-like body of the heating head portion, and the end portion of the heating head portion which heats the two tube body parts are not substantially parallel. By forming an angle between each end on the welding side of the body and tube two parts and the resin rod of the heating head and the end for heating the tube two parts, the resin rod and tube two parts The clearances between the respective ends to be welded and welded, the resin rod of the heating head portion, and the ends for heating the two tube parts are not substantially constant.

<Operation Effect of Correction of Heating Irregularities According to Claim 7 of the Present Invention>
The resin rod-like body and tube two-piece parts by the introduction of the thermal fluid to the heating head, the heat transfer inside the heating head, the air flow outside the heating head, and the heat quality capacity lower than the heating temperature near the weld. Uneven welding occurs in the circumferential direction of welding of the end portions on the side where welding and welding are performed. At this time, the shape of the heating head portion is changed, and the shape of the heating head portion is changed with respect to the welding circumference of each end portion on the side of bonding and welding of the resin rod body and the two tube body parts. The clearance between the heating head on the side where welding is insufficient and the resin rod-like body and each end on the welding side of the two tube parts is made slightly smaller than the side on which welding is sufficient. Welding attributable to uneven heating so that the temperature of each end of the resin rod-like body on the side where welding becomes insufficient, and the joining side of the two parts of the tubular body rises, and welding can be carried out fairly uniformly with the side where welding is sufficient The effect of correcting unevenness is exhibited. The welding quality is more uniform with respect to the circumference of the resin rod-like body and the two parts of the tube body. The actions and effects described in paragraph 0019, paragraph 0020, paragraph 0024 are exerted.

  Further, according to the present invention, the resin rod-like body, the respective end portions on the joining and welding side of the two tube body parts, and the end portions for heating the resin rod body of the heating head portion and the two tube body parts are not substantially parallel. When forming an angle between each end on the welding and bonding side of the rod-like body and the two tube body parts and the resin rod body of the heating head portion and the end for heating the two tube body parts, the upper resin rod body and tube body Clearance between each end on the welding and welding side of the two parts and the resin rod of the heating head and the end to heat the tube two parts is a cross section including the axis of the resin rod and the two parts of the tube By arranging the heating head portion having a substantially isosceles trapezoidal shape, the lower resin rod body, the resin rod body of the heating head portion and the respective end portions on the side of joining and welding the two tube parts, and the two tube body parts are heated. By making the clearance between the ends larger.

<Operation Effect of Correction of Heating Irregularities According to Claim 8 of the Present Invention>
When there is no air volume containing a special horizontal component, when heating the resin rod body and the end that heats the two tube body parts in a non-contact manner via air at the heating head, particularly, the resin rod body and the tube body The resin rod body, the upper part of the end of the two tube parts is heated to a higher temperature, and the resin rod body and the tube two parts are generated from the rising air flow around the end of the two parts and the vicinity of the clearance portion of the heating head. The upper and lower parts of the end are often cooler. Here, the resin rod-like body and the resin rod-like body of the heating head portion and the end portions for heating the two tube body parts are not substantially parallel, and the respective end portions on the joining and welding side of the fat rod-like body and two tube body parts are substantially parallel. The resin rod body of the upper portion and the tube body two parts at the time of giving an angle to the respective end portions on the welding and joining side of the tube two parts and the resin rod body of the heating head portion and the end portion heating the tube two parts Clearance between each end on the welding and welding side and the end to heat the resin rod of the heating head part and the end to heat the two tube parts, the section including the axis of the resin rod and tube two parts is substantially isometric leg By arranging a trapezoidal heating head, the lower end of the resin rod, the end on the welding and bonding side of the two tube parts and the resin rod of the heating head, and the end of heating the two tube parts If the clearances are made approximately equal by increasing the clearance between the Bottom suppressed more becoming cold, and further reduce the upper part of the heat supply, the action can be increased more the lower the heat supply, an effect. It exerts the effect and effect that the homogeneous heating and the homogeneous temperature are performed from the top and the bottom. As a result, in addition to the effects and effects described in paragraph 0019 and paragraph 0020, the effects and effects described in paragraph 0024 are exhibited.

  Furthermore, according to the automatic thermal welding method of the rod-like body and the tubular resin part of the present invention, one of the resin rod-like body restrained in the reciprocating mechanism, the tubular part and the other reciprocating mechanism which welds the end part A resin rod and tube parts are coaxially arranged with a predetermined distance, and within a predetermined distance, the resin rod and the tube are reciprocated in a reciprocating manner perpendicular to the center distribution center of the two parts of the tube. Center distribution arrangement with distance by center by the home position process of arranging the heat source head which fixed the positioning part at the tip with the mechanism restrained, and the reciprocating mechanism which reciprocates the positioning part vertically and coaxially The heat source head portion is disposed on the same axis of the resin rod-like body and the two tube body parts by reciprocating forward movement of a reciprocating mechanism which reciprocates vertically and coaxially, and the resin rod body and the tube body part coaxially disposed are Resin rod and tube parts In the first positioning step of advancing the resin rod body and the tube part toward the positioning component and causing the resin rod body and the tube component to move forward to the positioning component by reciprocating the bunched reciprocating mechanism, and in the first positioning step After the second positioning step of securing the predetermined heating distance clearance by reciprocating the reciprocating mechanism which is restraining the positioned fat rod body and the tube part after the second positioning step, and after the second positioning step The heat source heating head is moved forward by the reciprocating motion of the reciprocating mechanism which reciprocates vertically and coaxially, and the resin rod body, the tube body part end portion, and the resin rod body, the tube body part end while maintaining the predetermined heating distance clearance. Heating step of heating the heat source, and a step of retracting and retracting the heat source heating head portion fixing the positioning component after the heating step by the reciprocating motion of the reciprocating mechanism which reciprocates vertically and coaxially, the heat source heating head portion Evacuated After that step, the resin rod-like body which is constrained to reciprocating mechanism, the advancement of the reciprocating mechanism of the tube parts, made by a process allowed to joining welding resin rod members, end to end of the tube part.

<Operation and Effect of Claim 9 of the Present Invention>
With the means described in paragraph 0038, the action and effect of joining and welding the end portion and the end portion of the resin rod body and the tube part can be achieved fully automatically regardless of human work or semi-automatically. Reciprocating movement to reciprocate the heat source head perpendicular to the coaxial of the resin rod body and tube two parts coaxially distributed at a distance by the reciprocating mechanism that reciprocates the positioning parts in a direction perpendicular to the coaxial. The resin rod and tube parts arranged by reciprocating movement forward of the mechanism and coaxially, the resin rod and tube parts are made to reciprocate forward the reciprocating mechanism which restrains the oil rod and pipe parts, and resin is directed to the positioning parts In the first positioning step in which the rod-like body and the tube part are advanced and brought into abutment and positioning, the end portions of the resin rod-like body and the two parts of the tube can be preheated while the abutment and positioning is performed. By this residual heat, the use of heating energy is reduced, and the action and effect contributing to the reduction of carbon dioxide are exerted.

  Here, since the positioning component is fixed at the tip of the heat source heating head, the temperature is raised by heat transfer from the heat source heating head. However, since it is the tip, the surface temperature is low, and the resin rod and tube parts do not melt excessively, do not lead to vaporization and smoke, and it can be preheated, so it has tact time and cycle time Function and effect can be achieved at the same time as positioning function.

  The automatic thermal welding method for the rod-shaped body and the tubular resin part according to the present invention is performed by moving back and forth the reciprocating mechanism restraining the fat rod and the tubular part which are positioned after one end in the first positioning step. In order to use the second positioning step as a means for securing a predetermined heating distance clearance, the method for producing the method of automatically welding thermal adhesion of a rod-shaped resin member of the present invention to a resin rod-shaped member, When the end of the two body parts melts too much, and the straightness and roundness near the welded portion of the resin rod and tube become worse, the action that can be solved by setting the predetermined heating distance clearance a little larger, Play an effect. On the contrary, when the resin rod-like body and the melted part near the welded part of the tube are not enough and there is a problem of pinhole generation or reduction of security, it can be solved by setting the predetermined heating distance clearance slightly smaller. Play an effect. Thus, at the time of preparation for production of the welding step, and at the time of start-up, only one stroke adjustment is performed to reciprocate the reciprocating mechanism restraining the resin rod-like body and the tube body part to make a predetermined heating distance clearance. It works to improve the quality, it produces an effect.

  The automatic thermal welding method for the rod-shaped body and the tubular resin part according to the present invention is such that after the second positioning step, the heat source heating head is moved forward by the reciprocating motion of the reciprocating mechanism that reciprocates the resin rod vertically By the heating step of heating the resin rod-like body and the tube part end while maintaining the tube part end and the predetermined heating distance clearance, the air exhibits an appropriate heat insulation function, and the resin rod-like body and the tube part end It is effective to prevent excessive melting and bead defects caused by vaporization. The operation and effects described in paragraph 0019 and paragraph 0020 are exerted.

  According to the automatic thermal welding method of rod-like body and tubular resin part of the present invention, after the heating step, the heat source heating head having individual positioning parts is retracted by the reciprocating motion of the reciprocating mechanism which reciprocates vertically in the coaxial direction. After the process of evacuating and the process of evacuating the heat source heating head, the resin rod and the tube part restrained by the reciprocating mechanism are advanced by the reciprocating mechanism to move the end and the end of the resin rod and the tube part In the step of joining and welding, in the step of retreating and the step of joining and welding the end portion and the end portion, an operation and an effect capable of maintaining a short time can be exhibited. In such a short time, the heating temperature of the welded portion is slightly lowered, the temperature rise is alleviated, the heat accumulation rate is reduced, and so on, and the molten state of the welded portion is joined and integrated, It brings about the action and the effect that becomes stable state. And an effect and an effect which bead becomes small are produced. The effect of improving the straightness in the vicinity of the welding junction interface is exhibited. The effect of improving the roundness in the vicinity of the welding junction interface is exhibited. The actions and effects described in paragraph 0019, paragraph 0020, paragraph 0024, paragraph 0026, and paragraph 0028 are exerted. The automatic thermal welding method for the rod-shaped body and the tubular resin part according to any of claims 10 to 13 is also described in paragraph 0019 to paragraph 0024, paragraph 0026 to paragraph 0028, paragraph 0030, paragraph 0031, paragraph, with respect to the respective technical features. Among the actions and effects described in paragraph 0035, paragraph 0037, paragraph 0039, and paragraphs 0040 to 0043, the action and effect corresponding to the respective constituent requirements and means are exhibited. Then, the operation and effects described in paragraph 0044 described later are achieved.

    According to the present invention, the apparatus for thermally welding rod members and tubular resin parts with stable quality and the method for thermally welding the members can be obtained with good productivity with full automation and without manual operation. Also, the problems described in paragraphs 0011 to 0016 are solved, and paragraphs 0019 to 0024, 0026 to 0028, 0030, 0030, 0031, 0033, 0035, 0037, 0039, 0040 to 0043. The effects described in

It is a schematic diagram which shows the heating process at the time of the automatic welding of the welding heating head part of one Embodiment of this invention, a rod-shaped body, and a tube resin part. (A) is a model perspective view which shows a heating head part, a rod-shaped body, and the heating process of a tubular resin part. (B) is a model side view which shows a heating head part, a rod-shaped body, and a heating process of tube resin parts. (C) is a model side surface enlarged view which shows the heating head part, a rod-shaped body, and the heating process of a tubular resin part. It is a schematic diagram which shows the uniform heating process at the time of the automatic welding of the welding heating head part of one Embodiment of this invention, a rod-shaped body, and a tube resin part. (A) is a model perspective view which shows a heating head part, a rod-shaped body, and the uniform heating process of tube resin parts. (B) is a model side view which shows a heating head part, a rod-shaped body, and the uniform heating process of a tubular resin part. (C) is a model side surface enlarged view which shows a heating head part, a rod-shaped body, and the uniform heating process of a tubular resin part. A heat source head in which a positioning component is fixed at the end by being restrained by a reciprocating mechanism which reciprocates vertically and coaxially with the center distribution center of the rod and tube parts at the end of the automatic welding method of one embodiment of the present invention. It is a schematic diagram which shows the home position process which distributes. It is a schematic diagram which shows the 1st positioning process of advancing rod-shaped body and tube body parts of the automatic welding method of one Embodiment of this invention, and striking and locating. It is a schematic diagram which shows the 2nd positioning process of securing the heating distance clearance of the automatic welding method of one Embodiment of this invention. It is a schematic diagram which shows the heating process of a rod-shaped body and tube body parts edge part of the automatic welding method of one Embodiment of this invention. It is a schematic diagram which shows the process of making a heat-source heating head part reverse | retract and evacuate of the automatic welding method of one Embodiment of this invention. It is a schematic diagram which shows the process of joining and welding the end part and end part of the resin rod-shaped body and tube body parts of the automatic welding method of one Embodiment of this invention. It is a model perspective view which shows the process of holding | gripping and restraining the resin rod-shaped body and tube part components of one Embodiment of this invention. It is a schematic diagram which shows the heating process at the time of the automatic welding of the welding heating head part of 1 embodiment of this invention using a cartridge heater, a rod-shaped body, and a tube resin component. It is a model side surface enlarged view which shows the heating head part and rod-shaped body of this embodiment of this invention using a cartridge heater, and the heating process of a tubular resin part.

    Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate. FIG. 1 is a schematic view showing a heating process at the time of automatic welding of a welding heating head portion, a rod-like body, and a tubular resin part according to an embodiment of the present invention. In FIGS. 1 to 4, the same reference numerals and the same names indicate the same functional members. In FIG. 1, the resin rod body and the tube body parts are disposed substantially coaxially at a predetermined distance, and heating is performed when a pair of heat weldable resin rod bodies and tube body parts facing each other are butted and welded. The structure which became a heating fixed position and a home position process after the automatic reciprocation movement of the heating head part fixed to the means is demonstrated. The resin rod body, the resin tube part A1 and the resin rod body, and the resin tube part B2 are fixed to the reciprocating element means unit X and the reciprocating element means unit Y by the restraint and clamping means described in FIG. It is provided, and forward and backward movement control is performed in the direction of the coaxial a by an electric cylinder x, an electric cylinder y and the like described later.

  One embodiment of the present invention, in FIG. 1A, 1 is a part A which is a resin rod-like body or a tube part. FIG. 1A shows an embodiment in which 1 is a resin tube component, but even if 1 is a resin rod-like body, the functions and effects described in the detailed description of the present specification can be obtained. Similarly, 2 is a resin tube component B to be welded to the resin tube component 1. Reference numeral 3 denotes, for example, a linear operation electric power cylinder or the like, which is a heating head portion provided with a constant heat storage capacity, which is provided in a reciprocating heating unit. In one embodiment of the present invention, the heating head unit 3 adopts SUS310S, which has a balance of nickel and chromium of 25Cr-20Ni, an oxidation resistance superior to that of SUS309S, and functions as a heat-resistant steel, and is a thermal air heater nozzle. . The heating head unit 3 is a metal, and if it has a similar function such as a rigid body having a fixed heat storage capacity, the functions and effects of the present invention can be achieved. And 4 is a hot-air supply hole which sends hot air to the heating head part 3. Reference numeral 5 denotes a hot air discharge nozzle provided in the heating head unit 3. The hot air is supplied from the hot air supply hole 4 to the heating head portion 3, and in one embodiment, heat is transferred to the heating head portion 3 having a heat storage capacity of a constant SUS 310 S to raise the temperature of the heating head portion 3. In FIG. 1A, the resin rod body, the resin tube body part A1 and the resin rod body, and the resin pipe body part B2 are respectively illustrated as a tube body part, but the resin pipe body part A1 and the resin tube body parts B2 is the same as the resin rod-like body component, and will be described below with the same reference numerals.

  In one embodiment of the present invention, in FIG. 1 (a), the left and right sides of the resin rod body, the resin tube part A1 and the resin rod body, and the resin tube body B2 are approximately symmetrical. A plurality of hot air discharge nozzles 5 arranged in a substantially circular shape are disposed inside the heating head portion 3 having a constant heat storage capacity. When the number of the hot air discharge nozzles 5 is reduced and the diameter is reduced, the amount of heat supplied from the hot air supply holes 4 resists until it is discharged from the hot air discharge nozzles 5, so heat is less likely to be wasted. effective. When the number of the hot air discharge nozzles 5 is increased and the diameter is decreased, the heat transfer surface area is increased, so that the heating temperature rise can be accelerated and the effect can be obtained. In addition, the thermal effect that the hot air output from the hot air discharge nozzle 5 unintentionally gives to the resin rod body, the resin tube body part A1 and the resin rod body, and the resin tube body part B2 is the number of the hot air discharge nozzles 5 Many tend to be smaller with smaller diameters.

  Here, in the embodiment of the present invention, in FIG. 1A, the diameter (outer shape) of the resin tube component A1 and the resin tube component B2 is 3 mm to 26 mm, and the function of the present invention Play an effect. The resin tube component A1 and the resin tube component B2 are made of a fluorocarbon resin <NEOFLON (registered trademark) PFA>, and the thickness can be 0.5 mm to 2 mm, which can most increase the production efficiency. However, if the heating head portion 3 and the reciprocating mechanism, and the restraint clamp member are relatively large and relatively small, they can be practically used for resin tube parts having a diameter smaller than 3 mm and resin tube bodies having a diameter larger than 26 mm. it can. Even for resin tube parts whose thickness is less than 0.5 mm, resin tube parts A1 and resin tube parts B2 have resin thicknesses greater than 2 mm. It can also be put to practical use in parts.

  The material of the resin tube component A1 and the resin tube component B2 according to the embodiment of the present invention is a thermoplastic resin that is superior in toughness and the like to a thermosetting resin as the application, and thus the application is wide. Polyethylene, high density polyethylene, medium density polyethylene, low density polyethylene, polypropylene, polyvinyl chloride, polyvinylidene chloride, polystyrene, polyvinyl acetate, polyurethane, Teflon (registered trademark), polytetrafluoroethylene, ABS resin (acrylonitrile butadiene styrene resin ), AS resin, acrylic resin, polyamide, nylon (registered trademark), polyacetal, polycarbonate, modified polyphenylene ether, polyester, polyethylene terephthalate, glass fiber reinforced polyethylene terephthalate, polybutylene terephthalate, cyclic polyolefin, polyphenylene sulfide, polysulfone, polyether Sulfone, amorphous polyarylate, liquid crystal polymer, polyether ether ketone, heat Sex polyimide at the material of the polyamide-imide resin tube part A1, the diameter of the resin tube parts B2, at the embodiment of 3Mm～26mm, exhibits effect of the present invention, the effect. The production efficiency can be increased most at a thickness of 0.5 mm to 2 mm. However, if the heating head portion 3, the reciprocating mechanism, and the restraining clamp member are designed to be relatively large and relatively small, resin tube body parts having a diameter (outside) smaller than 3 mm, resin pipe body parts having a diameter larger than 26 mm It can also be put to practical use. Even for resin tube parts whose thickness is less than 0.5 mm, resin tube parts A1 and resin tube parts B2 have resin thicknesses greater than 2 mm. It can also be put to practical use in parts.

  FIG. 1 (a) shows, according to one embodiment of the present invention, a substantially circularly symmetrical, substantially circular array so as to correspond to the vicinity of each end of the resin rod and tube two parts in the heating head of the heating means. The diameter of the substantially circular array line where the hot air discharge nozzle 5 which is the air heater nozzle part is arranged and arranged is the air from the cross sectional diameter of the resin rod body, the tube two parts resin tube part A1 and the resin tube part B2 This embodiment is an embodiment in which the substantially circular diameter of the hot air discharge nozzle 5 which is a heater nozzle portion is increased. In the embodiment according to FIG. 1A, in addition to the action and effects described in paragraph 0026, the actions and effects described in paragraphs 0019 to 0022 are exhibited.

  Further, according to one embodiment of the present invention, an air heater nozzle portion arranged in a substantially circular shape in a substantially circular shape so as to correspond to the vicinity of each end portion of a resin rod body and a tube two parts in the heating head portion of the heating means. It is an air heater nozzle part from the cross-sectional diameters of the resin rod body, the tubular two-part resin tube body part A1, and the resin tube body part B2 by arranging the arrangement of the hot air discharge nozzle 5 which is In the embodiment in which the diameter of the substantially circular shape of the hot air discharge nozzle 5 is reduced, in addition to the functions and effects described in paragraph 0028, the functions and effects described in paragraphs 0019 to 0022 are exhibited.

  FIG. 1 (b) is a schematic side view showing the heating process of the heating head 3 having a fixed heat storage capacity, the rod-like body, the tubular resin component resin tube component A1, and the resin tubular component B2. FIG.1 (c) is a model side surface enlarged view which shows the heating head part of a figure (b), a rod-shaped body, and the heating process of a tubular resin part. In FIG. 1 (b) and FIG. 1 (c), the surface on the resin tube body part A1 and resin tube body part B2 side of the heating head part 3 and the welding end face of the resin tube body part A1 and resin tube body part B2 In the embodiment, they are disposed substantially in parallel. In the present embodiment, the surface of the heating head portion 3 on the side of the resin tube part A1 and the resin tube part B2 and the welding end face of the resin tube part A1 and the resin tube part B2 are fixed distances in this embodiment. , Face each other through the air. Here, even if the hot air discharged from the hot air discharge nozzle 5 is slightly higher than the melting temperature of the resin tube component A1 and the resin tube component B2, abnormal melting hardly occurs. When the temperature of the heating head 3 having a certain heat storage capacity becomes higher than the melting temperature and the welding head of the resin tube component A1 and the resin tube component B2 comes in contact with the heating head 3, abnormal melting or vaporization occurs. As shown in FIG. 1 (b) and FIG. 1 (c), since the clearance CL is taken, the released hot air melts the resin tube component A1 and the resin tube component B2. Even if the temperature is slightly higher, abnormal melting hardly occurs. When it comes in contact, there is a problem that abnormal melting and vaporization occur, but it has an action and an effect that can avoid these. In FIG. 1B and FIG. 1C, heat is supplied from the hot air supply hole 4 to the heating head 3 by hot air from the front side to the back side of the paper surface, and from the hot air discharge nozzle 5, arrow 6, As indicated by the arrow 7, heat is released through the clearance CL. With the hot air discharged from the hot air discharge nozzle 5 as shown by arrows 6 and 7, the vicinity of the welding end face of the resin tube component A1 and the resin tube component B2 can be preheated and the effect is exerted. The radiant heat from the heating head 3 heats the welding end face of the resin tube component A1 and the resin tube component B2 and also by the hot air discharged as shown by the arrows 6 and 7 from the hot air discharge nozzle 5 Since residual heat and heating can be performed in the vicinity of the welding end face, the action and effect of shortening the tact time and cycle time can be achieved. In the present embodiment, the clearance shown in FIG. 1 (c) exhibited a good action and effect at 0.5 mm to 2 mm.

  As shown in FIG. 1 (a), FIG. 1 (b) and FIG. 1 (c), the resin tube body part A1 as the resin rod body, the tube body two parts and the resin tube body part B2 are joined and welded. The end, the resin rod-like body of the heating head portion 3, the resin tube part A1 as a tube two part, and the end for heating the resin tube part B2 are disposed substantially parallel with the clearance CL without contacting. By heating the respective end portions on the joining and welding side of the resin rod-like body and the two parts of the tubular body, the action and effect described in paragraph 0033 are exhibited.

  Next, referring to FIGS. 2 (a), 2 (b) and 2 (c), the heating head portion 31 serves as a heat supply means similar to the at least one hot air supply pipe 4 of the heating means. Instead of the hot air supply hole 4, the cartridge heater 41 is disposed, and each end of the resin rod body, the two-piece resin tube body part of the tube body, the resin tube body part A2 and the resin tube body part B2 are welded and resin of the heating head 31 The end portions for heating the rod-like body and the tube two parts are not substantially parallel, and the resin rod-like body and the respective ends on the side of joining and welding the two tube body parts, the resin rod-like body of the heating head portion 31 and the tube two Joining the resin rod body, tube body 2 parts resin tube body part A1, resin tube body part B2 by giving an angle to the end which heats the pipe body 2 parts resin tube body part A1 and resin tube body part B2 of parts The resin rod-like body of each end to be welded and the heating head portion 31, and the end of the tube which heats two parts of the tube It will be described an embodiment which is not a clearance substantially constant.

<Configuration of Embodiment, Means 1>
The embodiment shown in FIGS. 2 (a), 2 (b) and 2 (c) will be described in an embodiment in which the cartridge heater 41 is provided in the heating head portion 31. FIG. As shown to Fig.2 (a), the heating head part 31 is comprised so that the planar cross section containing the axis | shaft of resin tube body components A1 and resin tube body components B2 may become isosceles trapezoid. Reference numeral 51 denotes a heating surface of the heating head portion 31 on the resin tube part A1 side, and reference numeral 52 denotes a heating surface of the heating head portion 31 on the resin tube part B2 side. CLU indicates the resin tube body part A1, a part upper clearance between the resin tube body part B2 and the heating head portion 31, and CLL indicates the resin pipe body part A1, the resin tube body part B2 and the heating head portion 31. Upper clearance. In the embodiments shown in FIGS. 2 (a), 2 (b) and 2 (c), the upper clearance CLU is larger than the lower clearance CLL. In one embodiment of the present invention, the heating head 31 shown in FIG. 2 (a) adopts SUS310S, which has a balance of nickel and chromium of 25Cr-20Ni, better oxidation resistance than SUS309S, and functions as a heat resistant steel. . The material of the heating head portion 31 is selected in the present invention in consideration of cost, quality, durability, and welding quality.

<Configuration of One Embodiment, Means 2>
Resin tube body part A1, each end of joining side of resin tube body part B2 and resin tube body part A1 of heating head part 31, end part heating surface 51 which heats resin tube body part B2 end face, heating surface 52 is not substantially parallel to the end surface of the resin tube part A1 and the resin tube part B2, and the resin rod body, the resin tube part A1, the resin tube part B2 end face and the heating surface 51 of the heating head portion 31 and the heating surface 52 In the present invention, in which the clearances between the resin tube component A1, the resin tube component B2 end face, the heating surface 51, and the heating surface 52 are not made substantially constant by attaching an angle to them, FIGS. 2 (a) and 2 (b) 2C, the upper clearance CLU shows an embodiment larger than the lower clearance CLL, but in a plane cross section including the axes of the resin tube component A1 and the resin tube component B2 in paragraph 0055. The vertical plane is the cross section Constitutes a heating head portion 31 so that the isosceles trapezoid achieves effects of the present invention, the effect.

<Configuration of one embodiment, means 3>
Thus, in FIG. 2B and FIG. 2C, the left clearance, which is the clearance between the heating surface 51 of the heating head portion 31 on the front side of the drawing and the heating surface 52, and the heating head 31 on the back side of the drawing. Even if a large or small difference in dimension of the right clearance, which is the clearance between the heating surface 51 and the heating surface 52, is provided, the operation and effects of the present invention can be achieved.

  Next, referring to FIGS. 2 (a), 2 (b), 2 (c), 1 (a), 1 (b) and 1 (c), the configuration of the embodiment of the present invention will be described. The means and effects of the means 1 to 3 (paragraphs 0055 to 0057) will be described. 1 (a), 1 (b), and 1 (depending on the size of the heating head unit 3, the hot air supply hole 4, the hot air discharge nozzle 5, and the cartridge heater 41, and the in-apparatus layout) having a constant heat storage capacity. As in c), even if the vicinity of the welding end face of the resin tube component A1 and the resin tube component B2 and the heating surface of the heating head portion 3 are substantially parallel and the clearance CL is substantially the same, Heating of the welding end faces of the resin tube component A1 and the resin tube component B2 generates temperature unevenness with respect to the heating end portion circumference of the resin tube component A1 and the resin tube component B2. Depending on the condition of convection with respect to the heat source generated by the in-apparatus layout, the temperature unevenness varies with the heated end circumference of the resin tube part A1 and the resin tube part B2, but there is no or very little convection. Since the rising air flow acts in synergy with the radiant heat, the information on the circumference of the resin tube component A1 and the resin tube component B2 may be rapidly heated and it may be easy to reach a higher temperature.

<Operation and effect of the embodiment for correcting the clearance of the heating head up and down>
Here, the movement of the moving means that reciprocates by clamping, restraining, and restraining the heating head portion 3, the convection in the vicinity of the heating head portion 3, the heating head portion 3, the resin pipe part A 1, and the resin pipe part B 2 When convection occurs due to the like, temperature unevenness occurs with respect to the heating end circumference of the resin tube component A1 and the resin tube component B2. If resin tube parts A1 and resin tube parts B2 are welded while temperature unevenness occurs, the high temperature side melts too much and the low temperature side does not melt enough, and bead size unevenness after welding, resin tube parts after welding A1, a decrease in the roundness of the welded joint of the resin tube component B2, and a decrease in the straightness of the resin tube component A1 and the resin tube component B2 occur. Here, for example, the clearance CLU in the direction of excessive melting is configured to be relatively large and relatively smaller than the clearance CLU in the direction of insufficient melting, for example, the direction of excessive melting. As a result, the amount of heat radiation from the heating head 31 in the direction of the insufficient clearance CLL to the end of the resin tube component A1 and the resin tube component B2 increases, and the resin tube component A1 and the resin tube component B2 With respect to the end circumference, it is possible to obtain a more uniform temperature rise and welding temperature, and an effect is exerted. As a result, the functions and effects described in paragraphs 0019 to 0020, 0024, 0026, 0028, 0030 to 0031, 0033, 0035 to 0037, 0040 to 0042, and 0043 can be further enhanced. Play an effect. The difference between the upper part component clearance CLU and the lower part component clearance CLL shown in FIG. 2 (c) is 0.3 mm to 1 mm in the present embodiment, and exhibits good operation and effects. As one embodiment, in the fluororesin PFA, the diameter of the resin tube component A1 and the resin tube component B2 is 3 mm to 26 mm, the thickness is 0.5 mm to 2 mm, and the production efficiency is most improved. An action and an effect were obtained to obtain good quality.
<Operation and effect of the embodiment for correcting the clearance of the heating head to the left and right>
According to the configuration of the present embodiment, the means 2, the configuration of the present embodiment, and the means 3, the heating surface 51 and the heating surface 52 of the heating head portion 31 on the front side of the drawing sheet in FIGS. Described in paragraph 0059, by providing a large or small difference in dimension of the right clearance, which is the clearance between the left side clearance and the heating surface 51 and the heating surface 52 of the heating head portion 31 on the back side of the drawing. In the right and left direction of FIG. 2B and FIG. In the present embodiment, the difference between the component right clearance and the component left clearance was 0.3 mm to 1 mm and exhibited a good action and effect. As one embodiment, in the fluororesin PFA, the diameter of the resin tube component A1 and the resin tube component B2 is 3 mm to 26 mm, the thickness is 0.5 mm to 2 mm, and the production efficiency is most improved. An action and an effect were obtained to obtain good quality.

<Means, Functions, Effects of One Embodiment According to Claim 9 of the Present Invention>
Next, one embodiment of a method for automatic thermal welding of rod-like body and tubular resin parts according to the present invention will be described with reference to FIGS. 3a to 3f sequentially. In FIGS. 3a to 3f, the same reference numerals indicate the same functional members. In FIGS. 3a to 3f, X is a reciprocating element unit that restrains and reciprocates the resin tube component A1. Y is a reciprocation element means unit for restraining and reciprocating the resin tube part B2. Z is a reciprocating element means unit for reciprocating the heat source head 3 having the positioning component 61 fixed at its tip end.

  FIG. 3A shows a reciprocation mechanism that reciprocates vertically and coaxially with the center distribution center of the end of the rod and tube two parts of the automatic welding method according to the embodiment of the present invention using the cartridge heater 41 as a heat source. It is a schematic diagram which shows the home-position process of arranging the heat-source head part which fixed the positioning component to the front-end | tip. In FIG. 3A, a heating plate heating head 3 fixed to a cartridge heater 41 as a heating head 3 having a constant heat storage capacity in FIG. 1 and reciprocating with a cartridge heater 41 by means of a reciprocating element unit X Arrange the part 71. The effects and advantages described in paragraph 0030 can be obtained as a fully automatic thermal welding apparatus. As an embodiment of the present invention, by adopting SUS310S, which has a balance of 25Cr-20Ni for nickel and chromium, is superior in oxidation resistance to SUS309S, and functions as a heat-resistant steel, for the heating plate of the heating plate heating head 71. This has the effect of accelerating the temperature rise of the heating plate heating head 71 and shortening the production cycle time and tact time. While saving energy consumption, reducing carbon dioxide emissions and contributing to the environment, it has the effect of reducing running costs. Even if it is not heat resistant steel like SUS310S, it can function at low cost. The hot plate heating head 71 fixed to the cartridge heater 41 and the positioning component 61 are positioned in the home position process by the forward movement of the reciprocating element means unit Z such as the electric cylinder z.

  In FIGS. 3A to 3F, if the drawing width dimension of the positioning component 61 and the dimension between the right and left heat plate heating head portions 71 are made the same, the resin tube component A1 and the resin tube component B2 in FIG. The clearance CL, which will be described later, is secured and set according to the receding amount dimension of the receding operation of the reciprocating moving element means unit X and the reciprocating moving element means unit Y fixed. In FIGS. 3A to 3F, if the drawing width dimension of the positioning component 61 and the dimension between the right and left surfaces of the heating plate heating head 71 are set smaller beforehand by the clearance CL dimension described later, the clearance CL setting step in FIG. It becomes unnecessary, reduces production cycle time and tact time, and has the effect of improving productivity. Electric cylinders xyz are disposed in the reciprocating element means unit X, the reciprocating element means unit Y, and the reciprocating element means unit Z, respectively. By this, even if there is a sudden load fluctuation and a sudden acceleration at the time of heat welding, each positioning of the embodiment of the present invention can be accurately performed, and the operation and effect of power saving operation can be achieved in the whole process of heat welding while high speed and high torque. Play.

  FIG. 3b is a schematic view showing a first positioning step of advancing, hitting and positioning the rod-shaped body and the tube part in the automatic welding method according to the embodiment of the present invention using the cartridge heater 41 as a heat source. Next, in one embodiment of the present invention, from the home position process state of FIG. 3a, reciprocating element means unit X such as electric cylinder x and electric cylinder y, reciprocating element means unit Y are respectively indicated by arrows F1 and F2. As described above, the resin tube body part A1 and the resin pipe body part B2 are advanced by positioning the resin pipe body part A1 by abutting against the positioning part 61 in the direction of the coaxial a of the resin pipe body part.

  FIG. 3 c is a schematic view showing a second positioning step for securing the heating distance clearance in the automatic welding method of the embodiment of the present invention using the cartridge heater 41 as a heat source. After positioning as described in paragraph 0064, as shown by arrow B1 and arrow B2, the constrained and clamped resin tube part A1 and resin tube part B2 are retracted in the direction of coaxial a, and the heating distance S clearance CLS1, the heating distance S Clearance CLS2 is formed.

  FIG. 3d is a schematic view showing the heating process of the end portion of the rod-shaped body or the tube part according to the embodiment of the automatic welding method of the present invention, in which the cartridge heater 41 is used as a heat source. In FIG. 3d, the reciprocating element means unit Z for arranging the positioning component 61 and the heating plate heating head 71 is advanced from the state of the heating plate heating head 71 of FIG. The welding ends of the resin tube component A1 and the resin tube component B2 are made to face each other with a predetermined clearance. In this step, the welding end of the resin tube component A1 and the resin tube component B2 is heated with a predetermined clearance.

  FIG. 3e is a schematic view showing a step of retracting and retracting the heat source heating head portion of the automatic welding method of the embodiment of the present invention using the cartridge heater 41 as a heat source. After the heating step shown in FIG. 3D, the positioning component 61 and the heating plate heating head portion 71 are retracted and retracted by the reciprocating moving element means unit Z as indicated by an arrow CB1.

  Next, the welding process will be described. FIG. 3F is a schematic view showing a step of joining and welding the end portion and the end portion of the resin rod-like body and the tube part in the automatic welding method according to the embodiment of the present invention using the cartridge heater 41 as a heat source. As shown in FIG. 3f, as shown in FIG. 3e, after retracting and retracting the positioning component 61 and the heating plate heating head unit 71 by the reciprocating moving element means unit Z, the resin tube component A1, the resin tube component B2 is advanced in the directions of arrow DF1 and arrow DF2 by the reciprocating element means unit X and the reciprocating element means unit Y to bring the welded ends into close contact. In the example of the resin tube part A1 and resin tube part B2 made of fluorocarbon resin <Neoflon (registered trademark) PFA, the welding time is about 3 mm to 26 mm in diameter (outside) and 0.5 mm to 2 mm in thickness. , 1 second to 5 seconds, to play the effects already described. The material is resin tube part A1 of fluorocarbon resin <Neoflon (registered trademark) PFA>, and resin tube part B2, 50 grams in weight in the example of 3 mm to 26 mm in diameter (outer shape) and 0.5 mm to 2 mm in thickness. It produces the described effects with a weight of ~ 500 grams.

  Next, with reference to FIG. 4, a description will be given of a situation where the reciprocating element means unit X and the reciprocating element means unit Y according to the embodiment of the present invention clamp and restrain the resin tube component A1 and the resin tube component B2. Do. Reference numeral 81 denotes a resin tube component A1 or a resin tube component B2. It may be a cylindrical rod-like body or a square bar. 83 is a right clamp and 84 is a left clamp. The resin tube component A1 or the resin tube component B2 is clamped by opening and closing by reciprocation of an electric cylinder, an air cylinder or the like. In the embodiment, the right clamp 83 and the left clamp 83 are gripped in two places in the axial direction of the resin tube component A1 or the resin tube component B2, but even in the case of one gripping portion, a plurality of It may be a grip. Although the inner side of the grips of the right clamp 83 and the left clamp 83 has been shown as a V block embodiment, it may be circular or polygonal.

  Next, referring to FIGS. 5a and 5b, the cartridge heater is used to heat the rod-like body, the resin rod-like body of the heating head portion and the respective end portions on the welding side of the two tube body parts, and the two tube body parts. An embodiment of the invention will be described in which the clearance between the ends is substantially constant. FIG. 5a is a schematic view showing a heating process at the time of automatic welding of the welding heating head portion and the rod-shaped body and the tubular resin part according to the embodiment of the present invention using a cartridge heater. In FIG. 5a, 81 is a heating head and 41 is a cartridge heater.

  FIG. 5 b is an enlarged schematic side view showing a heating step of the heating head portion and the rod-shaped body and tubular resin part according to the embodiment of the present invention using a cartridge heater. In one embodiment of FIG. 5b, the clearance CLU and the clearance CLL are substantially identical.

  In recent years, in industrial production, the joining elements of machine parts are diverse, and in particular, the spread of resin parts having functions not found in many metal parts such as light weight and low cost is remarkable. Here, the heat welding between the end portions of the rod-shaped body and the tube resin part is frequently used for a part of many industrial products and the like, so the industrial applicability is large. Although there is a case where semi-automatic heating and welding is intended to be performed here, since the patent gazette can not be found fully automated after being able to be converted into text, industrial applicability is large. Since ultrasonic welding, vibration welding and laser welding are large in size, complicated and have a high risk of failure, the industrial applicability of heat welding is large.

1 Resin tube parts A
2 Resin tube parts B
Reference Signs List 3 heating head portion having constant heat storage capacity 4 hot air supply hole 5 hot air discharge nozzle CL clearance 31 heating head portion 41 cartridge heater 61 positioning component 71 heating plate heating head portion 81 heating head portion a coaxial tube reciprocating of resin tube component Moving Element Means Unit Y Reciprocating Moving Element Means Unit Z Reciprocating Moving Element Means Unit

Claims (13)

In a pair of heat-welding resin rod bodies which are opposed to each other, and a fixed type fully automatic welding apparatus in which tube parts are butt-welded and welded,
The resin rod-like body to be welded and the tubular body part are arranged at a predetermined distance substantially coaxially, and between the resin rod-like body and the end of the tubular body part to be welded and joined, at a heating fixed position and a retracted fixed position Heating means which reciprocate automatically;
Means for restraining, clamping and positioning the resin rod-like body and tube part by air cylinder reciprocation opening and closing movement, means for gripping and moving the resin rod-like body and tube part near the positioning position Distribute
After the reciprocating movement, the heating between the two different ends of the resin rod-like body and the tube part causes the heating means to reciprocate by means of a linear operation electric power cylinder.
Between the ends of the resin rod-like body and the tube two parts to be welded and joined before welding and joining, positioning as a heating fixed position and simultaneously heating the ends of the resin rod-like body and tube two parts Characterized by
The reciprocative heating means comprises at least one hot air supply pipe and a heating head having a fixed heat storage capacity, and the heating head is provided in the vicinity of each end of the resin rod and tube two parts. An automatic thermal welding device for resin rod-like resin and tubular resin parts, characterized in that hot air discharge nozzles arranged in substantially circular symmetry and substantially in a circular shape are disposed to correspond to.   In the heating head portion of the heating means, air heater nozzle portions arranged substantially circularly and substantially in a circular shape so as to correspond to the vicinity of the respective end portions of the resin rod and tube two parts are arranged and arranged 2. The apparatus according to claim 1, wherein the diameter of the substantially circular arraying line is substantially the same as the cross-sectional diameter of the resin rod and tube two parts.   In the heating head portion of the heating means, the air heater nozzle portions arranged in the substantially circular shape are disposed substantially symmetrically in the left-right symmetry so as to correspond to the vicinity of the respective end portions of the resin rod body and tube two parts; The resin rod shape according to claim 1, wherein the diameter of the substantially circular shape of the air heater nozzle portion is made larger than the cross sectional diameter of the resin rod body and the two parts of the tube body. Automatic heat welding equipment for body and tube resin parts.   In the heating head portion of the heating means, the air heater nozzle portions arranged in the substantially circular shape are disposed substantially symmetrically in the left-right symmetry so as to correspond to the vicinity of the respective end portions of the resin rod body and tube two parts; The resin rod shape according to claim 1, wherein the diameter of the substantially circular shape of the air heater nozzle portion is made smaller than the cross sectional diameter of the resin rod body and the two parts of the tube body. Automatic heat welding equipment for body and tube resin parts.   The heating head unit having a cartridge heater is disposed instead of the heat supplying unit of at least one hot air supply pipe of the heating unit and the heating head unit of the hot air discharge having a constant heat storage capacity. An automatic thermal welding apparatus for resin rod-shaped body and tube resin part according to claim 1.   The respective ends of the resin rod body and the two tube body parts to be welded and welded, and the ends for heating the resin rod body and the tube body two parts of the heating head portion are not in contact but are approximately parallel with a clearance. The automatic heat welding apparatus for a rod-shaped body and a tube resin part according to any one of claims 1 to 5, wherein the respective end portions of the resin rod-shaped body and the two sides of the tube are joined and welded. . The resin rod-like body, and the respective end portions on the side of joining and welding two parts of the tube body,
The end portions of the heating head portion for heating the resin rod-like body and the tube two parts are not substantially parallel,
By forming the resin rod-like body, the respective end portions on the welding and bonding side of the two parts of the resin rod body, and the ends of the heating head portion for heating the resin rod body and the two pipe body parts,
The clearances between the resin rod-like body and the respective end portions on the welding and welding side of the two parts of the resin rod-like body and the resin rod-like body of the heating head portion and the ends where the two pipe body parts are heated are not substantially constant. The automatic heat welding apparatus of the rod-shaped body and tube body resin parts of Claim 1-5 which are characterized by the above-mentioned. The respective ends of the resin rod-like body and the two tube body parts to be joined and welded, and the ends for heating the resin rod-like body and the tube body two part of the heating head portion are not substantially parallel.
The above resin of the upper part is formed at the time of giving an angle to the respective end portions of the resin rod-like body and the two tube body parts to be welded and welded, and the end portions for heating the resin rod body and the two tube body parts of the heating head portion. A clearance between each end of the rod-like body and the two tube body parts to be welded and welded, and an end for heating the resin rod-like body and the tube body two part of the heating head portion,
By arranging the heating head portion in which the surface including the axis of the resin rod-like body and the tube two parts is substantially isosceles in section.
Make larger than the clearance between the lower end of the resin rod-like body and the end on the welding and welding side of the two tube parts and the end of the heating head portion heating the resin rod-like body and the tube two parts. The automatic heat welding apparatus for the rod-like body and the tubular body resin part according to claim 7, characterized in that The resin rod-like body and the tube part which are restrained by the reciprocating mechanism and the resin rod-like body and the tube part which are restrained by another reciprocating mechanism for welding the end portion are coaxially disposed with a predetermined distance. Between said predetermined distances,
In the center distribution center of the resin rod-like body and tube 2 parts end,
A home position process including a heat source head portion having a positioning component fixed at a tip thereof while being restrained by a reciprocating mechanism which reciprocates vertically and coaxially;
The heat source head portion is coaxial with the resin rod body and the tube two parts coaxially arranged at the center at the distance by the reciprocating mechanism which reciprocates the positioning component in a direction perpendicular to the coaxial. The resin rod-like body and the tube part disposed coaxially by reciprocating forward movement of the reciprocating mechanism reciprocating in the vertical direction, and reciprocate the reciprocating mechanism restraining the oil rod-like body and the tube part A first positioning step of moving the resin rod body and the tube part toward the positioning part by moving forward and moving the resin rod toward the positioning part;
The second reciprocation mechanism which is restraining the resin rod-like body and the tube part which are positioned after the first positioning step after the first positioning process is reciprocated back and forth to secure a predetermined heating distance clearance Positioning process,
After the second positioning step, the heat source heating head portion is advanced by the reciprocating motion of the reciprocating mechanism which reciprocates perpendicularly to the coaxial, and the resin rod body, the tube component end portion and the predetermined heating distance clearance A heating step of heating the end portion of the resin rod-shaped body and the tube part as it is;
After the heating step, retracting and retracting the heat source heating head portion in which the positioning component is fixed by reciprocation of a reciprocating mechanism which reciprocates vertically to the coaxial;
After the step of evacuating the heat source heating head, the resin rod-like body and the tube part restrained in the reciprocating mechanism are advanced by the reciprocating mechanism to move the resin rod-like body and the end and the end of the tube part A method for automatic thermal welding of rod-like and tubular resin parts, characterized in the step of joining and welding.   Axial movement of the resin rod-like body, the resin rod-like body of the tubular body part and the tubular body part from the home position process to the first positioning process is driven by an electric cylinder or an air cylinder. Method for automatic thermal welding of rod-like and tubular resin parts.   Driving the axial movement of the resin rod-like body, the resin rod-like body of the tubular body part and the tubular body part from the first positioning step to the second positioning step by an electric cylinder or an air cylinder Automatic heat welding method of rod-like body and tube body resin parts characterized by the present invention.   A method of automatic thermal welding of a rod-shaped body or a tubular resin part, characterized in that movement of the heat source heating head portion from the second positioning step to the heating step is driven by an electric cylinder or an air cylinder.   The axial movement of the resin rod-like body, the resin rod-like body of the tubular part and the tubular part from the heating step to the joining and welding step and the movement of the heat source heating head are performed by an electric cylinder or an air cylinder. A method of automatic thermal welding of rod-like and tubular resin parts characterized in that they are driven.