CN106393702B - A kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit - Google Patents
A kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit Download PDFInfo
- Publication number
- CN106393702B CN106393702B CN201610326614.8A CN201610326614A CN106393702B CN 106393702 B CN106393702 B CN 106393702B CN 201610326614 A CN201610326614 A CN 201610326614A CN 106393702 B CN106393702 B CN 106393702B
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- Prior art keywords
- pipe fitting
- air
- welding
- heating tube
- welding unit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
- B29C65/26—Hot fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention belongs to hot wind plastic welding technology fields, a kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit are provided, including weld-end fittings and the air intake assembly for being connected to the weld-end fittings upper end, and it is connected to the heating tube of the both ends sealing in the weld-end fittings, the weld-end fittings includes the first pipe fitting and the second pipe fitting for being connected in first pipe fitting, thermal insulation layer is equipped between first pipe fitting and second pipe fitting, the air intake assembly is connected to second pipe fitting, the heating tube is located in second pipe fitting, the outer tube wall of the heating tube is fitted on second pipe fitting inner wall, and the outer tube wall of the heating tube is concavely provided with thread groove；It is low to can solve existing welding equipment heat utilization ratio for design in this way, cold wind and heating unit time of contact it is short caused by leaving air temp it is inadequate, and then the problem of influence welding efficiency.
Description
Technical field
The invention belongs to hot wind plastic welding technology field more particularly to a kind of sealed hot-air welding unit and there is this
The plastic welding equipment of welding unit.
Background technique
Hot air welding refer to by the air-flow of heating by after the heating of metal plumb joint to plastic part carry out hot melt punching or
Connection, and then the needs of single or multiple hot air welding units are to meet actual production can be set in hot air welding equipment, it is existing
Setting heating unit will export after the gas being passed through heating in some hot air welding units, and heat-radiation heat-dissipating damages in this process
The time of contact of cold wind and heating unit that the heat of mistake more causes whole heat utilization ratio low, while being passed through is short, leads to outlet air
Shi Wendu is inadequate, and then influences the efficiency of welding.
Summary of the invention
The purpose of the present invention is to provide a kind of sealed hot-air welding units, it is intended to solve existing welding equipment heat
Utilization rate is low, and leaving air temp caused by cold wind and heating unit time of contact are short is inadequate, and then the problem of influence welding efficiency.
The present invention solves in this way: a kind of sealed hot-air welding unit, including weld-end fittings and is connected to the weldering
The air intake assembly of jointed tubular workpieces upper end, and be connected in the weld-end fittings both ends sealing heating tube, the weld-end fittings
Including the first pipe fitting and the second pipe fitting being connected in first pipe fitting, set between first pipe fitting and second pipe fitting
There is thermal insulation layer, the air intake assembly is connected to second pipe fitting, and the heating tube is located in second pipe fitting, the heating
The outer tube wall of pipe is fitted on second pipe fitting inner wall, and the outer tube wall of the heating tube is concavely provided with thread groove.
Further, first pipe fitting is metal tube, and second pipe fitting is glass tube, and second pipe fitting upper end
Sealant is connected between the air intake assembly.
Further, the thread groove spiral direction along the heating tube diametrical direction and along the axis of the heating tube
Multiple strip grooves for reducing air flow distance are also recessed with to extension, and on the heating tube outer surface.
Further, multiple strip grooves are arranged along the axial direction of the heating tube and are connected to the part thread groove,
Multiple strip grooves are parallel to each other and the sum of length of multiple strip grooves is less than or equal to the axial long of the heating tube
Degree.
Further, the air intake assembly includes the connector connecting with second pipe fitting, and the connector is equipped with
Can external feeder air inlet.
Further, second pipe fitting lower end is equipped with outlet portion, the hot air welding unit further include be connected to it is described
Welding head assembly in outlet portion.
Further, the welding head assembly includes the welding riveter being connected to the outlet portion and is connected to the outlet
Connecting tube on the outside of portion, the welding riveter are connected to the end of connecting tube, are additionally provided with multiple exhaust vents in the welding riveter,
The air-out direction of the exhaust vent is straight down.
Further, the welding head assembly further includes the fan housing being set on the outside of the connecting tube and is connected to the company
Cooling component on adapter tube, and fan housing limit is connected in the connecting tube.
Further, the cooling component includes the supporting element being connected in the connecting tube and is connected to the supporting element
On discharge pipe, the fan housing lower part is additionally provided with multiple openings corresponding with multiple exhaust vents, and the discharge pipe
It is open described in the face of end.
The technical effect that sealed hot-air welding unit provided by the invention has relative to existing welding equipment are as follows: logical
The setting of the thermal insulation layer between the first pipe fitting and the second pipe fitting is crossed, and then it is outside to pass through too much the second pipe fitting to avoid heat
Radiation, so as to reduce the loss of heat；The outer tube wall of heating tube is fitted on the inner wall of the second pipe fitting simultaneously, and is heated
The outer tube wall of pipe is concavely provided with thread groove, and then can only flow downward from the cold wind that air intake assembly enters along thread groove, at this
During a, heating tube comes into full contact with cold wind, and then ensure that the temperature of outlet air problem, connects simultaneously because gas heating is faster than
Thermally conductive efficiency is touched, and then improves the efficiency of heat utilization ratio and welding.
The present invention also provides a kind of plastic welding equipment comprising one or more above-mentioned sealed hot-air welding units, this
Sample design both can be welded individually, guarantee to weld while can also welding simultaneously with multi-work piece, and then can be improved heat utilization ratio
The efficiency connect.
Detailed description of the invention
Fig. 1 is the structure chart of sealed hot-air welding unit provided in an embodiment of the present invention.
Fig. 2 is the half sectional view of Fig. 1.
Fig. 3 is the exploded view of sealed hot-air welding unit provided in an embodiment of the present invention.
Fig. 4 is the structure chart of heating tube in sealed hot-air welding unit provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element
On one element or indirectly on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is only relative concept each other it should also be noted that, the positional terms such as left and right, upper and lower in the embodiment of the present invention
It or is to refer to, and should not be regarded as restrictive with the normal operating condition of product.
It please refers to shown in attached Fig. 1 to Fig. 4, in embodiments of the present invention, provides a kind of sealed hot-air welding unit, including
Weld-end fittings 10 and the air intake assembly 20 for being connected to 10 upper end of weld-end fittings, and the heating tube being connected in weld-end fittings 10
30, which includes outermost radiating aluminium sheet and the heat-generating pipe being connected to inside radiating aluminium sheet, the heat-generating pipe and thermoelectricity
It occasionally integrates, and then can complete to heat the function different with thermometric two, which includes the first pipe fitting 101
With the second pipe fitting 102 being connected in the first pipe fitting 101, which is preferably that capacity of heat transmission is lower nonmetallic
Pipe, is additionally provided with thermal insulation layer (not shown) between first pipe fitting 101 and the second pipe fitting 102, which is preferably attached to
On the outer wall of second pipe fitting 102, which is connected to the second pipe fitting 102, and the heating tube 30 is located at the second pipe
In part 102, and 30 upper and lower ends of heating tube are all closed structures, cold wind can be prevented from the centre of heating tube 30 in this way
Pass through, while the outer tube wall of the heating tube 30 is fitted on 102 inner wall of the second pipe fitting, and the outer tube wall fovea superior of the heating tube 30
Equipped with thread groove 301.
The sealed welding unit designed above passes through setting for the thermal insulation layer between the first pipe fitting 101 and the second pipe fitting 102
It sets, and then the second pipe fitting 102 can be passed through too much to avoid heat to external radiation, so as to reduce the loss of heat；Simultaneously
The outer tube wall of heating tube 30 is fitted on the inner wall of the second pipe fitting 102, and the outer tube wall of heating tube 30 is concavely provided with thread groove
301, and then can only flow downward from the cold wind that air intake assembly 20 enters along thread groove 301, in this process, heating tube 30
It is come into full contact with cold wind, and then ensure that the temperature of outlet air, simultaneously because gas heating is faster than the efficiency of thermal contact conductance, Jin Erti
The high efficiency of heat utilization ratio and welding.
Specifically, in embodiments of the present invention, which is preferably metal tube, can guarantee welded pipe in this way
The intensity of part 10, second pipe fitting 102 are preferably glass tube, and design in this way can reduce the heat radiation of the second pipe fitting 102, and
It is connected with sealant (not shown) between second pipe fitting, 102 upper end and air intake assembly 20, design can be to avoid air inlet group in this way
Cold wind in part 20 enters in the gap between the first pipe fitting 101 and the second pipe fitting 102.
Specifically, as shown in Figure 3 and Figure 4, in embodiments of the present invention, the direction of spiraling of the thread groove 301 is along heating tube
30 diametrical direction, and multiple strip grooves 302 for reducing air flow distance are also recessed on 30 outer surface of heating tube；It is more
A strip groove 302 is arranged along the axial direction of heating tube 30, and multiple strip grooves 302 are parallel to each other and multiple strip grooves 302
The sum of length be less than or equal to the axial length of heating tube 30.
In the present embodiment, as shown in Figure 3 and Figure 4, the direction of spiraling of the thread groove 301 is along the diameter side of heating tube 30
To and extending and be covered with the outer wall of entire heating tube 30 along the axial direction of heating tube 30, the setting of the strip groove 302 can be with
So that the air in the flowing in thread groove 301 passes through in the thread groove 301 that 302 upper end of strip groove enters directly into lower end,
The flow velocity that can accelerate air in this way, avoids the temperature of gas excessively high；The sum of length of multiple strip grooves 302 is in this reality simultaneously
The axial length for being preferably less than heating tube 30 in example is applied, can be designed so that cold wind flows several circles in thread groove 301 in this way
It is entered in lower thread slot 301 by a strip groove 302 afterwards and continues to rotate several circles, can guarantee air flowing speed in this way
Guarantee the temperature that gas welding needs while spending, while avoiding the temperature of gas excessively high；If the length foot of certain heating tube 30
Enough, when gas heating is enough abundant, the sum of the length of multiple strip groove 302 can also be preferably equal to the axial direction of heating tube 30
Length, and the head and the tail of multiple strip grooves 302 do not connect.
Specifically, as shown in Figure 1 to Figure 3, in embodiments of the present invention, which includes and the second pipe fitting 102
The connector 201 of connection, which is tightly connected by the upper end of sealant and the second pipe fitting 102, while the company
The air inlet 202 that fitting 201 is equipped with for external feeder, and then the compressed gas of external feeder passes through the air inlet
Mouthfuls 202 and then in the second pipe fitting 102, so that gas has the pressure to flow downward.
Specifically, as shown in Figures 2 and 3, in embodiments of the present invention, which is additionally provided with outlet portion
1021, while the hot air welding unit further includes the welding head assembly 40 being connected in outlet portion 1021；The welding head assembly 40
Including the welding riveter 401 being connected to outlet portion 1021 and the connecting tube 402 being connected on the outside of outlet portion 1021, the welding riveter
401 are connected to the end of connecting tube 402, and multiple exhaust vents 4011 are additionally provided in the welding riveter 401, the exhaust vent 4011
The middle part of the welding riveter 401 is set, while the air-out direction of the exhaust vent 4011 is straight down, can be designed so that in this way
Air-flow after heating is blown out straight down by the exhaust vent 4011, and then is heated to the front end of welding riveter 401, simultaneously
The hot wind of blowout also preheats the plastic part to be welded with welding 401 front end face of riveter.
Specifically, as shown in Figures 2 and 3, in embodiments of the present invention, which further includes being set in connection
The fan housing 403 in the outside of pipe 402 and it is connected to cooling component 404 in connecting tube 402, and the limit of fan housing 403 is connected to connecting tube
On 402；The cooling component 404 includes the supporting element 4041 that is connected in connecting tube 402 and is connected to going out on supporting element 4041
Air hose 4042 is additionally provided with multiple openings 4032 corresponding with multiple exhaust vents 4011, and discharge pipe in 403 lower part of fan housing
4042 end face opening 4032, after the completion of welding, compressed air blows to 401 from 4042, so that the weldment of 401 contacts
It is quickly cooled down, completes welding.
In the present embodiment, as shown in Figures 2 and 3, multiple limiting slots 4031 are equipped in the fan housing 403, while in the company
Adapter tube 402 is equipped with restriction protrusion 4021, which, which can move up and down, is connected in the restriction protrusion 4021；Simultaneously should
Fan housing 403 is covered riveter 401 is welded, and opening 4032 corresponding with exhaust vent 4011, this implementation are arranged on fan housing 403
Then the inner wall that the hot wind of the exhaust vent 4011 blowout first passes through fan housing 403 in example is flowing downwardly at opening 4032, in this way may be used
It can be locally preheated with guaranteeing plastics part to be welded only, while guarantee that the front end for welding riveter 401 is heated abundant；The cooling component
404 setting is quick in order to guarantee to carry out welding portion on plastics part to be welded by external compressed air after welding
It is cooling.
The present embodiment also provides a kind of plastic welding equipment, includes above-mentioned sealed hot-air welding unit and other are used for
A sealed hot-air welding unit can only be arranged in plastic welding equipment, carry out independent welding process for the necessary equipment of plastic welding,
Multiple sealed hot-air welding units can be set as desired, while being welded, heat utilization can be improved in design in this way
Guarantee the efficiency of welding while rate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of sealed hot-air welding unit, it is characterised in that: including weld-end fittings and be connected to the weld-end fittings upper end
Air intake assembly, and be connected in the weld-end fittings both ends sealing heating tube, the weld-end fittings include first pipe
Part and the second pipe fitting being connected in first pipe fitting, second pipe fitting are nonmetal parts, first pipe fitting with it is described
Thermal insulation layer is equipped between second pipe fitting, the air intake assembly is connected to second pipe fitting, and the heating tube is located at described second
In pipe fitting, the outer tube wall of the heating tube is fitted on second pipe fitting inner wall, and recessed on the outer tube wall of the heating tube
Have a thread groove, the thread groove spiral direction along the heating tube diametrical direction and along the axially extending of the heating tube,
And multiple strip grooves for reducing air flow distance are also recessed on the heating tube outer surface；Multiple strip grooves are described in
The axial of heating tube arranges and is connected to the part thread groove that multiple strip grooves are parallel to each other and multiple strip grooves
The sum of length be less than or equal to the axial length of the heating tube, the head and the tail of multiple strip grooves do not connect.
2. sealed hot-air welding unit as described in claim 1, it is characterised in that: first pipe fitting is metal tube, institute
Stating the second pipe fitting is glass tube, and is connected with sealant between second pipe fitting upper end and the air intake assembly.
3. sealed hot-air welding unit as described in claim 1, it is characterised in that: the air intake assembly includes and described
Two pipe fittings connection connector, the connector be equipped with can external feeder air inlet.
4. sealed hot-air welding unit as described in any one of claims 1-3, it is characterised in that: second pipe fitting lower end
Equipped with outlet portion, the hot air welding unit further includes the welding head assembly being connected in the outlet portion.
5. sealed hot-air welding unit as claimed in claim 4, it is characterised in that: the welding head assembly include with it is described
The welding riveter of outlet portion connection and the connecting tube being connected on the outside of the outlet portion, the welding riveter are connected to connecting tube
End is additionally provided with multiple exhaust vents in the welding riveter, and the air-out direction of the exhaust vent is straight down.
6. sealed hot-air welding unit as claimed in claim 5, it is characterised in that: the welding head assembly further includes being arranged
Fan housing on the outside of the connecting tube and the cooling component being connected in the connecting tube, and fan housing limit be connected to it is described
In connecting tube, the cooling component includes the supporting element being connected in the connecting tube and the outlet air that is connected on the supporting element
Pipe.
7. sealed hot-air welding unit as claimed in claim 6, it is characterised in that: the fan housing lower part be additionally provided with it is multiple
The corresponding multiple openings of the exhaust vent, and be open described in the end face of the discharge pipe.
8. a kind of plastic welding equipment, it is characterised in that: including single or multiple such as the described in any item sealed heat of claim 1-7
Wind welding unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326614.8A CN106393702B (en) | 2016-05-17 | 2016-05-17 | A kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326614.8A CN106393702B (en) | 2016-05-17 | 2016-05-17 | A kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106393702A CN106393702A (en) | 2017-02-15 |
| CN106393702B true CN106393702B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326614.8A Active CN106393702B (en) | 2016-05-17 | 2016-05-17 | A kind of sealed hot-air welding unit and the plastic welding equipment with the welding unit |
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| Country | Link |
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| CN (1) | CN106393702B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106696285B (en) * | 2017-02-13 | 2019-03-26 | 宁波双林模具有限公司 | A kind of hot wind melting welding equipped with air inlet duct and exhausting duct, which is riveted, sets |
| CN108790189B (en) * | 2018-06-27 | 2019-11-26 | 重庆工商大学 | A kind of infrared hot riveting machine |
| CN109130196A (en) * | 2018-09-20 | 2019-01-04 | 上海皓威德自动化设备有限公司 | Hot air welding device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909535A (en) * | 1998-04-23 | 1999-06-01 | Seelye Acquisition, Inc. | Hot air welding torch with concentric tubular members providing cooling air flow |
| DE102004043376B4 (en) * | 2004-09-08 | 2008-06-12 | Leister Process Technologies | Hand extruder welder and method of operating a hand extruder welder |
| CN201792071U (en) * | 2010-09-03 | 2011-04-13 | 辽宁石油化工大学 | Energy-saving hot air welding heater |
| KR20130093241A (en) * | 2012-02-14 | 2013-08-22 | 한라비스테온공조 주식회사 | Assembling method of double pipe heat exchanger and double pipe heat exchanger using the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1010957C2 (en) * | 1999-01-05 | 2000-07-06 | Jansen Kunststoffen B V | Welding apparatus for two plastic articles, preferably panels, comprises an extruder supplying molten material to a welding head heated with hot air |
-
2016
- 2016-05-17 CN CN201610326614.8A patent/CN106393702B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909535A (en) * | 1998-04-23 | 1999-06-01 | Seelye Acquisition, Inc. | Hot air welding torch with concentric tubular members providing cooling air flow |
| DE102004043376B4 (en) * | 2004-09-08 | 2008-06-12 | Leister Process Technologies | Hand extruder welder and method of operating a hand extruder welder |
| CN201792071U (en) * | 2010-09-03 | 2011-04-13 | 辽宁石油化工大学 | Energy-saving hot air welding heater |
| KR20130093241A (en) * | 2012-02-14 | 2013-08-22 | 한라비스테온공조 주식회사 | Assembling method of double pipe heat exchanger and double pipe heat exchanger using the same |
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| Publication number | Publication date |
|---|---|
| CN106393702A (en) | 2017-02-15 |
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