CN104875377A - Enclosed hot-air generator and plastic welding equipment - Google Patents
Enclosed hot-air generator and plastic welding equipment Download PDFInfo
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- CN104875377A CN104875377A CN201510036656.3A CN201510036656A CN104875377A CN 104875377 A CN104875377 A CN 104875377A CN 201510036656 A CN201510036656 A CN 201510036656A CN 104875377 A CN104875377 A CN 104875377A
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- air
- closed type
- type hot
- air generator
- inner core
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Abstract
The invention relates to the technical field of plastic welding and discloses an enclosed hot-air generator and plastic welding equipment. The enclosed hot-air generator comprises a heating internal cylinder for heating air and a thermal insulation external cylinder which wraps the heating internal cylinder. A heating tube is arranged inside the heating internal cylinder. One end of the thermal insulation external cylinder is provided with an input end for inflow of air, and the other end of the thermal insulation external cylinder is provided with an output end for outflow of air. A gap is left between the heating internal cylinder and the thermal insulation external cylinder and is used for running-through and heating of air. A wind guide structure for increasing air travel is arranged inside the gap. The wind guide structure comprises multiple wind guide walls arranged inside the gap. Wind guide chambers for running-through of air are formed among the wind guide walls. The enclosed hot-air generator adopts a double-layered sleeve mode. Air is heated in the gap between the heating internal cylinder and the thermal insulation external cylinder. Hot-air is used as a heating medium to preheat a workpiece integrally. Thus, the purpose of reaching a good welding and fusion effect without leaving weld joints is achieved and finally welded products are firm.
Description
Technical field
The present invention relates to the technical field of Plastic Welding, particularly relate to closed type hot air generator and plastic welding equipment.
Background technology
In the heat treatment process that the thermoplastic of the workpiece such as plastic parts is welded, need workpiece heat, make it be subject to thermal softening, then weld.Generally adopt aluminium or copper to do heat-conducting medium in the prior art, be heated by heat-generating pipe, the heat-conducting medium after heating directly contacts workpiece and makes its softening or thawing, then welds.
In this mode of heating, the local direct high temperature melt at short notice of workpiece, entirety does not have the process of pre-thermal softening, and just melt locally attachment after welding and be pasted onto another surface of the work, have gap between welding, two workpiece cannot combine together.Two workpiece that this welding manner has welded can produce abnormal sound in motion process, from gap dislocation, then affect service life.
So there is syncretizing effect difference in thermoplastic Welding of the prior art, the shortcomings such as the welding life-span is low.
Summary of the invention
The object of the present invention is to provide closed type hot air generator, be intended to solve thermoplastic Welding syncretizing effect in prior art poor, the problem that the welding life-span is low.
The present invention realizes like this, closed type hot air generator, the insulation urceolus comprising the heating inner core for adding hot-air and be wrapped in outside described heating inner core, described heating inner core inside is provided with heat-generating pipe, described insulation urceolus one end is provided with the input that can flow into for air, the other end is provided with the output that can flow out for air, the gap that can flow through heating for air is left between described heating inner core and described insulation urceolus, the air guide structure for increasing air stroke is provided with in described gap, described air guide structure comprises many air guiding walls be arranged in described gap, the wind guide chamber that can flow through for air is formed between air guiding wall.
Compared with prior art, the closed type hot air generator in the present invention can produce high temperature air, does medium substitute metal heat-conducting medium of the prior art with high temperature air.In the welding procedure of high temperature air, air adopts closed heating, heating inner core is heated by heat-generating pipe, then heating flows through the air on its surface, and air is subject to the impact of air guide structure, advances along air guiding wall, its actual distance flowed through is greater than the distance between input and output, make closed type hot air generator have higher thermal transition efficiency, finally export high temperature and concentrated air, namely can be used as heat-conducting medium and participate in welding.When adopting high temperature air welding, high temperature air blows to surface of the work and makes it overall softening, and local melting last welding.In this processing technology, be heat-conducting medium in welding process with hot-air, alternative metals medium, surface of the work is by the overall pre-thermal softening of high temperature air, and easily mutually merge during welding, not easily leave weld seam, welding effect is good, long service life.
Present invention also offers plastic welding equipment, comprise one or more above-mentioned closed type hot air generator.
Plastic welding equipment in the present invention, can produce high temperature air by closed type hot air generator, participate in welding as medium, namely can weld independent workpiece, or disposablely to weld multiple workpiece, its welding process is through pre-thermal softening, welding is melted effective, and the life-span after welding is high.
Accompanying drawing explanation
The cross-sectional view of the closed type hot air generator that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The schematic diagram of part related to the present invention is merely illustrated in the present embodiment accompanying drawing, closed type hot air generator 1 at least also needs connect the air pump structure of sustainable input air and can discharge the exhaust structure of high temperature air heated parts in practice, exhaust structure and air pump structure all can adopt ripe prior art, and the present embodiment no longer describes in detail.
Below in conjunction with concrete accompanying drawing, realization of the present invention is described in detail.
As shown in Figure 1, closed type hot air generator 1 comprises heating inner core 12 and is set in the insulation urceolus 11 heated outside inner core 12.Wherein heating inner core 12 is closure designs, and inside is provided with heat-generating pipe 122.Insulation urceolus 11 is provided with input and output, and leave gap between its inwall and heating inner core 12 lateral wall, air enters gap from input, flows through heating inner core 12 lateral wall and is heated, then export from output.
In gap between insulation urceolus 11 and heating inner core 12, be provided with air guide structure 121, air guide structure 121 comprises many air guiding walls, define wind guide chamber between air guiding wall, air can only be advanced from wind guide chamber along the bearing of trend of air guiding wall, changes the mode of air flowing, the stroke of air can be extended, make air actual distance flow through in gap be greater than the distance between input and output, reach and extend the heat time, promote the object of thermal transition efficiency.The mode of this prolongation air stroke, both can make the time of the actual heating of air elongated, improved thermal transition efficiency, simultaneously less on the impact of air self actual flow velocity, and after air flows out output, wind speed loss is less, and that can comparatively concentrate blows to surface of the work.
Adopt the closed type hot air generator 1 in the present embodiment, do heat-conducting medium with high temperature air, substitute metal heat-conducting medium of the prior art.When its work, sustainable generation high temperature air, and thermal transition efficiency is high, by other exhaust structure alignment pieces, blows the surface of the work to needing welding by high temperature air, its entirety is heated preheating, reaches part softening, local melting effect.Part laminating workpiece being melted when welding, owing to being subject to overall pre-thermal softening, fully can merge, not easily leave weld seam, last welding effect is good, the workpiece long service life after welding.
Air guiding wall set-up mode can have multiple, such as, be arranged on the madial wall of insulation urceolus 11, is arranged on the lateral wall of heating inner core 12 in the present embodiment.
The extension mode of air guiding wall also can have multiple, such as, in gap, arrange reciprocating labyrinth formula extend, and makes roundabout repeatedly the flowing through of air heat inner core 12 lateral wall, or arranges netted extension, make air be divided into multichannel and laterally longitudinally pass through gap.Particularly, air guiding wall in the present embodiment is for extending spirally along heating inner core 12 outer wall, the mode of advancing with spiral after air enters wind guide chamber just can leave gap around after heating inner core 12 outer wall many weeks, the advantage of this spiral progression is to there are not corner angle, less on the impact of wind speed under the prerequisite extending stroke, the wind speed that air loses behind gap is lower, the output that can comparatively concentrate.
Because the density of wind guide chamber is larger, air ring is more around the number of turns of heating inner core 12, absorb thermal time longer, but also larger on the impact of air velocity, so the density of the screw type wind guide chamber of design should be required in actual use according to the wind speed after output, temperature required etc.
The concrete structure of not shown this spiral air guiding wall in the present embodiment, its structure can be understood with reference to having externally threaded screwed pipe, screw thread can be similar to understand and become air guiding wall mentioned in the present embodiment, the space between screw thread is namely to being interpreted as wind guide chamber mentioned in the present embodiment.
The upper end of the air guiding wall in the present embodiment is connected to the inwall of insulation urceolus 11, and this air guiding wall abuts the mode of insulation urceolus 11, thoroughly cuts off between adjacent wind guide chamber, guarantees that all air can be assigned with and enters each wind guide chamber inside spin advance heating.
As shown in Figure 1, being incubated urceolus 11 in the present embodiment and heating inner core 12 is two mutually sheathed cylindrical tubular member, on illustrated direction, insulation urceolus 11 outer wall is provided with inlet suction port 112 near the outside of right end portion, inlet suction port 112 one end can be connected with outside appendix, and the other end is communicated in insulation urceolus 11.Outside appendix also can be adopted input end structure common in other prior aries in reality, no longer describe in detail in directly air can being inputted by inlet suction port 112.
The position entered is communicated with at inlet suction port 112, the lateral wall indent of heating inner core 12, form cushion chamber 123 after indent and between insulation urceolus 11 madial wall, cushion chamber 123 is that each wind guide chamber one end is communicated to cushion chamber 123 around heating inner core 12 1 weeks ringwise chambers.Air enters after in insulation urceolus 11, first enters cushion chamber 123 and is buffered, in the process being full of cushion chamber 123, entering wind guide chamber.Air enters to be incubated after in urceolus 11 and can cushion rear dispersion, is assigned in each wind guide chamber, avoids after pressure-air directly enters wind guide chamber one end and distributes inequality, concentrate the situation entering close inlet suction port 112 access port place wind guide chamber.
As shown in Figure 1, also comprise card line nut 13, at the right-hand member of insulation urceolus 11, the madial wall namely arranging one end of inlet suction port 112 is provided with the internal thread 113 coordinating card line nut 13.Heating inner core 12 entirety is inserted after in insulation urceolus 11, card line nut 13 is screwed in from right-hand member, card line nut 13 is resisted against the right-hand member of heating inner core 12, its this end is made to be compacted fixing, there will not be axial Relative sliding between insulation urceolus 11 and heating inner core 12, ensure that integrally-built stability.
Being provided with the power connection 1221 for accessing power supply in heat-generating pipe 122 one end, being reserved with through hole 131 in the middle part of card line nut 13, power connection 1221 can extend to the outside of insulation urceolus 11 through through hole 131, be convenient to wiring.
In order to monitoring temperature, be provided with temperature element (not shown) in heating inner core 12 inside, the temperature of heating inner core 12 can be monitored in real time.
Due to reality use in need to guarantee by the high temperature air after heating can be continual and steady blow to workpiece, need so general with accommodating device fixed position, make keep suitable distance between itself and workpiece, so be provided with external screw thread 111 at insulation urceolus 11 outer wall in the present embodiment, can be adjusted it easily and accommodate position, only need rotate whole closed type hot air generator 1, it is in rotary moving externally can to accommodate device, regulates the distance between workpiece.
The present embodiment also provides plastic welding equipment (not shown), include one or more above-mentioned closed type hot air generator 1 and other necessary equipment for plastic welding, such as be correlated with and wind-guiding air draft can carry out the structures such as the welding die welded, in plastic welding equipment, a closed type hot air generator 1 can be only set, carry out independent welding process, also multiple closed type hot air generator 1 can be set according to demand, weld simultaneously, it adopts high temperature air to be medium, welding is through pre-thermal softening, there is welding syncretizing effect good, the advantages such as the welding life-span is long.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. closed type hot air generator, it is characterized in that, the insulation urceolus comprising the heating inner core for adding hot-air and be wrapped in outside described heating inner core, described heating inner core inside is provided with heat-generating pipe, described insulation urceolus one end is provided with the input that can flow into for air, the other end is provided with the output that can flow out for air, the gap that can flow through heating for air is left between described heating inner core and described insulation urceolus, the air guide structure for increasing air stroke is provided with in described gap, described air guide structure comprises many air guiding walls be arranged in described gap, the wind guide chamber that can flow through for air is formed between described air guiding wall.
2. closed type hot air generator as claimed in claim 1, it is characterized in that, described air guiding wall is arranged at described heating inner tank theca.
3. closed type hot air generator as claimed in claim 2, it is characterized in that, described air guiding wall extends spirally along described heating inner tank theca.
4. closed type hot air generator as claimed in claim 3, it is characterized in that, each described air guiding wall upper end is connected to described insulation outer tube inner wall.
5. closed type hot air generator as claimed in claim 4, is characterized in that, described input comprises can for the inlet suction port of outside appendix access, and described inlet suction port is arranged at the outside of described insulation urceolus, and one end is communicated to described gap.
6. closed type hot air generator as claimed in claim 5, it is characterized in that, described gap location is communicated in described inlet suction port, the lateral wall indent of described heating inner core also and between described insulation urceolus madial wall forms the cushion chamber that can hold air, and each described wind guide chamber one end is communicated to described cushion chamber.
7. closed type hot air generator as claimed in claim 6, it is characterized in that, also comprise the card line nut itself and described insulation urceolus being fixed for supporting described heating inner core, described insulation urceolus one end madial wall is provided with the internal thread for coordinating described card line nut.
8. closed type hot air generator as claimed in claim 7, is characterized in that, described heating inner core inside is provided with the temperature element for detected temperatures.
9. closed type hot air generator as claimed in claim 1, is characterized in that, the outer drum outer wall of described insulation is provided with external screw thread.
10. plastic welding equipment, is characterized in that, comprises the closed type hot air generator described in one or more any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036656.3A CN104875377B (en) | 2015-01-23 | 2015-01-23 | Closed type hot air generator and plastic welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036656.3A CN104875377B (en) | 2015-01-23 | 2015-01-23 | Closed type hot air generator and plastic welding equipment |
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| Publication Number | Publication Date |
|---|---|
| CN104875377A true CN104875377A (en) | 2015-09-02 |
| CN104875377B CN104875377B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510036656.3A Active CN104875377B (en) | 2015-01-23 | 2015-01-23 | Closed type hot air generator and plastic welding equipment |
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Citations (8)
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|---|---|---|---|---|
| DD106148A1 (en) * | 1973-08-17 | 1974-06-05 | ||
| GB1483257A (en) * | 1973-08-22 | 1977-08-17 | Fortune William S | Air heating apparatus |
| SU1211082A1 (en) * | 1983-12-21 | 1986-02-15 | Всесоюзный Научно-Исследовательский И Технологический Институт Монтажа,Эксплуатации И Ремонта Машин И Оборудования Животноводческих И Птицеводческих Ферм | Torch for welding polymeric materials with gaseous heat carrier |
| CN2825265Y (en) * | 2005-06-17 | 2006-10-11 | 廖来辉 | Hot-blast pipe for hot air seam sealing machine |
| US20070231755A1 (en) * | 2004-04-30 | 2007-10-04 | Icopal A/S | Gas Fired Heating Device and a Method of Generating a Flow of Hot Air |
| KR100900001B1 (en) * | 2008-08-13 | 2009-05-28 | 최기철 | Heating apparatus using metal tube heater |
| CN201503131U (en) * | 2009-08-27 | 2010-06-09 | 天津新技术产业园区天博科工贸有限公司 | Coal-burnt hot air apparatus |
| CN204526150U (en) * | 2015-01-23 | 2015-08-05 | 深圳市友通塑焊机械有限公司 | Closed type hot air generator and plastic welding equipment |
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2015
- 2015-01-23 CN CN201510036656.3A patent/CN104875377B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD106148A1 (en) * | 1973-08-17 | 1974-06-05 | ||
| GB1483257A (en) * | 1973-08-22 | 1977-08-17 | Fortune William S | Air heating apparatus |
| SU1211082A1 (en) * | 1983-12-21 | 1986-02-15 | Всесоюзный Научно-Исследовательский И Технологический Институт Монтажа,Эксплуатации И Ремонта Машин И Оборудования Животноводческих И Птицеводческих Ферм | Torch for welding polymeric materials with gaseous heat carrier |
| US20070231755A1 (en) * | 2004-04-30 | 2007-10-04 | Icopal A/S | Gas Fired Heating Device and a Method of Generating a Flow of Hot Air |
| CN2825265Y (en) * | 2005-06-17 | 2006-10-11 | 廖来辉 | Hot-blast pipe for hot air seam sealing machine |
| KR100900001B1 (en) * | 2008-08-13 | 2009-05-28 | 최기철 | Heating apparatus using metal tube heater |
| CN201503131U (en) * | 2009-08-27 | 2010-06-09 | 天津新技术产业园区天博科工贸有限公司 | Coal-burnt hot air apparatus |
| CN204526150U (en) * | 2015-01-23 | 2015-08-05 | 深圳市友通塑焊机械有限公司 | Closed type hot air generator and plastic welding equipment |
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| CN104875377B (en) | 2017-12-01 |
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