CN205735999U - A kind of sealed hot-air welding unit and there is the plastic welding equipment of this welding unit - Google Patents

Abstract

This utility model belongs to hot blast TECHNOLOGY OF WELDING PLASTICS field, a kind of sealed hot-air welding unit is provided and there is the plastic welding equipment of this welding unit, including weld-end fittings and the air intake assembly being connected to described weld-end fittings upper end, and the two ends that are connected in described weld-end fittings seal add heat pipe, described weld-end fittings includes the first pipe fitting and the second pipe fitting being connected in described first pipe fitting, it is provided with thermal insulation layer between described first pipe fitting and described second pipe fitting, described air intake assembly connects with described second pipe fitting, the described heat pipe that adds is positioned at described second pipe fitting, the described outer tube wall adding heat pipe is fitted on described second pipe fitting inner wall, the outer tube wall adding heat pipe described in and is concavely provided with thread groove；So can to solve existing welding equipment heat utilization ratio low in design, and cold wind is inadequate with the heating unit short leaving air temp caused time of contact, and then the problem affecting welding efficiency.

Description

A kind of sealed hot-air welding unit and there is the plastic welding equipment of this welding unit

Technical field

This utility model belongs to hot blast TECHNOLOGY OF WELDING PLASTICS field, particularly relates to a kind of sealed hot-air welding single Unit and there is the plastic welding equipment of this welding unit.

Background technology

Hot jet welding refers to that the air-flow by heating carries out hot melt punching to working of plastics after being heated by metal welding joint Or connect, and then single or multiple hot jet welding unit can be set on hot jet welding equipment meet reality The demand produced, derives after arranging the gas heating that heating unit will be passed through in existing hot jet welding unit, The heat of heat-radiation heat-dissipating loss causes overall heat utilization ratio low more in this process, and be passed through is cold simultaneously Wind is short with the time of contact of heating unit, and when causing air-out, temperature is inadequate, and then has influence on the efficiency of welding.

Utility model content

The purpose of this utility model is to provide a kind of sealed hot-air welding unit, it is intended to solve existing weldering Connecing equipment heat utilization ratio low, cold wind is inadequate with the heating unit short leaving air temp caused time of contact, and then The problem affecting welding efficiency.

This utility model is so to solve: a kind of sealed hot-air welding unit, including weld-end fittings and company It is connected on the air intake assembly of described weld-end fittings upper end, and the two ends being connected in described weld-end fittings seal Adding heat pipe, described weld-end fittings includes the first pipe fitting and the second pipe fitting being connected in described first pipe fitting, institute Stating and be provided with thermal insulation layer between the first pipe fitting and described second pipe fitting, described air intake assembly is with described second pipe fitting even Logical, described in add heat pipe and be positioned at described second pipe fitting, described in add the outer tube wall of heat pipe and be fitted in described second pipe On part inwall, and described in add the outer tube wall of heat pipe and be concavely provided with thread groove.

Further, described first pipe fitting is metal tube, and described second pipe fitting is glass tubing, and described second It is connected between pipe fitting upper end with described air intake assembly and has fluid sealant.

Further, spiraling of described thread groove adds the diametric(al) of heat pipe and along described heating described in edge, direction Pipe axially extending, and described in add the bar shaped being also arranged with multiple minimizing air flow distances on heat pipe outer surface Groove.

Further, the axial arranged of heat pipe and thread groove described with part are added described in multiple described bar-shaped troughs edge Connection, multiple described bar-shaped troughs are parallel to each other and the length sum of multiple described bar-shaped trough is less than or equal to described Add the axial length of heat pipe.

Further, described air intake assembly includes the connector being connected with described second pipe fitting, described connector Being provided with can the air inlet of external feeder.

Further, described second pipe fitting lower end is provided with the portion of giving vent to anger, and described hot jet welding unit also includes connecting At the described plumb joint assembly given vent to anger in portion.

Further, described plumb joint assembly include with the described portion of giving vent to anger connection weld die and be connected to institute Stating the connecting tube outside the portion of giving vent to anger, described welding die is connected to the end of connecting tube, on described welding die Being additionally provided with multiple exhaust vent, the air-out direction of described exhaust vent is straight down.

Further, described plumb joint assembly also includes the fan housing being set in outside described connecting tube and is connected to Cooling assembly in described connecting tube, and described fan housing is spacing is connected in described connecting tube.

Further, described cooling assembly includes the support member being connected in described connecting tube and is connected to described Discharge pipe on support member, described fan housing bottom is additionally provided with the multiple openings corresponding with multiple described exhaust vents, And the end of described discharge pipe is just to described opening.

The technology that the sealed hot-air welding unit that this utility model provides has relative to existing welding equipment Effect is: by the setting of the thermal insulation layer between the first pipe fitting and the second pipe fitting, and then can avoid heat mistake How by the second pipe fitting to external radiation, such that it is able to reduce the loss of heat；Add the outer tube wall of heat pipe simultaneously It is fitted on the inwall of the second pipe fitting, and the outer tube wall adding heat pipe is concavely provided with thread groove, and then from air inlet The cold wind that assembly enters flows downward only along thread groove, in this process, adds heat pipe abundant with cold wind Contact, and then ensure that the temperature of air-out problem, simultaneously because gas heating is faster than the efficiency of thermal contact conductance, And then improve the efficiency of heat utilization ratio and welding.

This utility model also provides for a kind of plastic welding equipment, and it includes one or more above-mentioned sealed hot-air weldering Order unit, such design both can individually be welded, it is also possible to multi-work piece welds simultaneously, and then can improve heat The efficiency of welding is ensured while amount utilization rate.

Accompanying drawing explanation

Fig. 1 is the structure chart of the sealed hot-air welding unit that this utility model embodiment provides.

Fig. 2 is the half sectional view of Fig. 1.

Fig. 3 is the exploded view of the sealed hot-air welding unit that this utility model embodiment provides.

Fig. 4 is the structure chart adding heat pipe in the sealed hot-air welding unit that this utility model embodiment provides.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing And embodiment, this utility model is further elaborated.Should be appreciated that described herein specifically Embodiment, only in order to explain this utility model, is not used to limit this utility model.

It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can With directly on another element or be connected on this another element.When an element is known as " even It is connected to " another element, it can be directly to another element or be indirectly connected to this another yuan On part.

Also, it should be noted the orientation term such as left and right, upper and lower in this utility model embodiment, only It is relative concept or with the normal operating condition of product as reference each other, and should not be regarded as that there is limit Property processed.

Refer to shown in accompanying drawing 1 to Fig. 4, in this utility model embodiment, it is provided that a kind of sealed hot-air Welding unit, including weld-end fittings 10 and the air intake assembly 20, Yi Jilian being connected to weld-end fittings 10 upper end Be connected in weld-end fittings 10 adds heat pipe 30, and this adds heat pipe 30 and includes outermost radiating aluminium sheet and be connected to Heat-generating pipe within radiating aluminium sheet, this heat-generating pipe integrates with thermocouple, and then can complete heating and Two different functions of thermometric, this weld-end fittings 10 includes the first pipe fitting 101 and is connected to the first pipe fitting 101 The second interior pipe fitting 102, this second pipe fitting 102 is preferably non-metallic pipe that capacity of heat transmission is relatively low, at this Being additionally provided with thermal insulation layer (not shown) between first pipe fitting 101 and the second pipe fitting 102, this thermal insulation layer is preferably Being attached on the outer wall of this second pipe fitting 102, this air intake assembly 20 connects with the second pipe fitting 102, and should Add heat pipe 30 and be positioned at the second pipe fitting 102, and this adds the structure that heat pipe about 30 two ends are all closings, So being possible to prevent cold wind to pass through from the centre adding heat pipe 30, this outer tube wall adding heat pipe 30 is fitted in simultaneously On second pipe fitting 102 inwall, and this outer tube wall adding heat pipe 30 is concavely provided with thread groove 301.

The sealed welding unit more than designed, by between the first pipe fitting 101 and the second pipe fitting 102 every The setting of thermosphere, so can avoid heat too much by the second pipe fitting 102 to external radiation, such that it is able to Reduce the loss of heat；The outer tube wall simultaneously adding heat pipe 30 is fitted on the inwall of the second pipe fitting 102, and The outer tube wall adding heat pipe 30 is concavely provided with thread groove 301, and then can only from the cold wind of air intake assembly 20 entrance Flow downward along thread groove 301, in this process, add heat pipe 30 and be fully contacted with cold wind, Jin Erbao Demonstrate,prove the temperature of air-out, simultaneously because gas heating is faster than the efficiency of thermal contact conductance, and then improve heat profit By rate and the efficiency of welding.

Specifically, in this utility model embodiment, this first pipe fitting 101 is preferably metal tube, so may be used To ensure the intensity of weld-end fittings 10, this second pipe fitting 102 is preferably glass tubing, so design can be reduced Be connected between the heat radiation of the second pipe fitting 102, and this second pipe fitting 102 upper end and air intake assembly 20 have close Sealing (not shown), the cold wind in so design can avoid air intake assembly 20 enters into the first pipe fitting 101 And in the space between the second pipe fitting 102.

Specifically, as shown in Figure 3 and Figure 4, in this utility model embodiment, the dish of this thread groove 301 Rotation direction is along adding the diametric(al) of heat pipe 30, and this adds and is also arranged with multiple minimizing on heat pipe 30 outer surface The bar-shaped trough 302 of air flow distance；These bar-shaped troughs 302 multiple along adding the axial arranged of heat pipe 30, and These bar-shaped troughs 302 multiple are parallel to each other and the length sum of multiple bar-shaped trough 302 is less than or equal to add heat pipe 30 Axial length.

In the present embodiment, as shown in Figure 3 and Figure 4, the direction of spiraling of this thread groove 301 is along adding heat pipe 30 Diametric(al), and extend along the axial direction adding heat pipe 30 and be covered with the whole outer wall adding heat pipe 30, Arranging so that the air of flowing in thread groove 301 is through this bar-shaped trough 302 of this bar-shaped trough 302 Upper end enters directly in the thread groove 301 of lower end, so can accelerate the flow velocity of air, it is to avoid gas Temperature is too high；The length sum of these bar-shaped troughs 302 the most multiple the most preferably less than adds heat pipe The axial length of 30, so can be designed so that cold wind flows after a few circle by a bar in thread groove 301 Shape groove 302 continues to rotate several circles in entering into lower thread groove 301, so can ensure air flowing speed Ensureing the temperature that gas welding needs while degree, the temperature simultaneously avoiding gas is too high；If certainly adding heat pipe The length of 30 is enough, and when gas heating is the most abundant, the length sum of this bar-shaped trough 302 the plurality of can also be excellent Elect as equal to the axial length adding heat pipe 30, and the head and the tail of multiple bar-shaped trough 302 do not connect.

Specifically, as shown in Figure 1 to Figure 3, in this utility model embodiment, this air intake assembly 20 includes The connector 201 being connected with the second pipe fitting 102, fluid sealant and the second pipe fitting are passed through in this connector 201 lower end The upper end of 102 is tightly connected, and this connector 201 is provided with the air inlet 202 being available for external feeder simultaneously, And then the compressed gas of external feeder is by this air inlet 202 and then in the second pipe fitting 102 so that Gas has the pressure flowed downward.

Specifically, as shown in Figures 2 and 3, in this utility model embodiment, this second pipe fitting 102 times End is additionally provided with the portion of giving vent to anger 1021, and this hot jet welding unit also includes the weldering being connected in the portion of giving vent to anger 1021 simultaneously Adapter assembly 40；This plumb joint assembly 40 includes the welding die 401 with the portion of giving vent to anger 1021 connection and is connected Connecting tube 402 outside the portion of giving vent to anger 1021, this welding die 401 is connected to the end of connecting tube 402, And being additionally provided with multiple exhaust vent 4011 on this welding die 401, this exhaust vent 4011 is arranged on this welding The middle part of die 401, the air-out direction of this exhaust vent 4011 straight down, so can be designed so that simultaneously Air-flow after heating is blown out straight down by this exhaust vent 4011, and then enters the front end of welding die 401 Row heating, the hot blast simultaneously blown out also to weld die 401 before proper to working of plastics to be welded carry out Preheating.

Specifically, as shown in Figures 2 and 3, in this utility model embodiment, this plumb joint assembly 40 Also include the fan housing 403 being set in outside connecting tube 402 and be connected in connecting tube 402 assembly 404 of lowering the temperature, And fan housing 403 is spacing to be connected in connecting tube 402；This cooling assembly 404 includes being connected to connecting tube 402 On support member 4041 and the discharge pipe 4042 that is connected on support member 4041, in this fan housing 403 bottom also It is provided with the multiple openings 4032 corresponding with multiple exhaust vents 4011, and the end of discharge pipe 4042 is the most right Opening 4032, after welding completes, compressed air blows to 401 from 4042 so that the weldment of 401 contacts Quickly cooling, completes welding.

In the present embodiment, as shown in Figures 2 and 3, it is provided with multiple stopper slot 4031 at this fan housing 403, Being provided with restriction protrusion 4021 in this connecting tube 402, this stopper slot 4031 can move up and down and be connected to simultaneously In this restriction protrusion 4021；Welding die 401 is covered by this fan housing 403 simultaneously, and sets on fan housing 403 Putting the opening 4032 corresponding with exhaust vent 4011, in the present embodiment, the hot blast of this exhaust vent 4011 blowout is first Then inwall through fan housing 403 is flowing downwardly at opening 4032, so can ensure that plastics treat that weldment is only Can locally be preheated, ensure that the front end of welding die 401 is heated fully simultaneously；Setting of this cooling assembly 404 Put and be to ensure that plastics are treated that on weldment, welding portion is carried out soon by external compressed air after terminating by welding Quickly cooling is but.

The present embodiment also provides for a kind of plastic welding equipment, include above-mentioned sealed hot-air welding unit and its He, for the necessary equipment of plastic welding, can only arrange a sealed hot-air welding unit in plastic welding equipment, enter The independent welding process of row, it is also possible to multiple sealed hot-air welding unit is set as desired, welds simultaneously Connecing, so design ensures the efficiency of welding while can improving heat utilization ratio.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, all should Within being included in protection domain of the present utility model.

Claims (10)

1. a sealed hot-air welding unit, it is characterised in that: include weld-end fittings and be connected to described weldering The air intake assembly of jointed tubular workpieces upper end, and the two ends that are connected in described weld-end fittings seal add heat pipe, institute State weld-end fittings and include the first pipe fitting and the second pipe fitting being connected in described first pipe fitting, described first pipe fitting And being provided with thermal insulation layer between described second pipe fitting, described air intake assembly connects with described second pipe fitting, described in add Heat pipe is positioned at described second pipe fitting, described in add the outer tube wall of heat pipe and be fitted on described second pipe fitting inner wall, The outer tube wall adding heat pipe described in and is concavely provided with thread groove.

2. sealed hot-air welding unit as claimed in claim 1, it is characterised in that: described first pipe fitting For metal tube, described second pipe fitting is glass tubing, and between described second pipe fitting upper end and described air intake assembly Connect and have fluid sealant.

3. sealed hot-air welding unit as claimed in claim 1, it is characterised in that: described thread groove Spiral direction along described in add heat pipe diametric(al) and along described in add the axially extending of heat pipe, and described in add heat pipe The bar-shaped trough of multiple minimizing air flow distance also it is arranged with on outer surface.

4. sealed hot-air welding unit as claimed in claim 3, it is characterised in that: multiple described bar shapeds Adding the axial arranged of heat pipe described in groove edge and thread groove described with part connects, multiple described bar-shaped troughs are the most flat Capable and multiple described bar-shaped trough length sum adds the axial length of heat pipe described in being less than or equal to.

5. sealed hot-air welding unit as claimed in claim 1, it is characterised in that: described air intake assembly Including the connector being connected with described second pipe fitting, described connector is provided with can the air inlet of external feeder Mouthful.

6. the sealed hot-air welding unit as described in any one of claim 1-5, it is characterised in that: described Second pipe fitting lower end is provided with the portion of giving vent to anger, described hot jet welding unit also include being connected to described in give vent to anger in portion weldering Adapter assembly.

7. sealed hot-air welding unit as claimed in claim 6, it is characterised in that: described plumb joint group Part include with the connection of the described portion of giving vent to anger weld die and connecting tube outside portion of giving vent to anger described in being connected to, described Welding die is connected to the end of connecting tube, and described welding die is additionally provided with multiple exhaust vent, described air-out The air-out direction in hole is straight down.

8. sealed hot-air welding unit as claimed in claim 7, it is characterised in that: described plumb joint group Part also includes the fan housing being set in outside described connecting tube and the cooling assembly being connected in described connecting tube, and Described fan housing is spacing to be connected in described connecting tube, and described cooling assembly includes being connected in described connecting tube Support member and the discharge pipe being connected on described support member.

9. sealed hot-air welding unit as claimed in claim 8, it is characterised in that: described fan housing bottom It is additionally provided with the multiple openings corresponding with multiple described exhaust vents, and the end of described discharge pipe is just opened described Mouthful.

10. a plastic welding equipment, it is characterised in that: include single or multiple such as any one of claim 1-9 Described sealed hot-air welding unit.