CN211641021U

CN211641021U - Hot air welding machine

Info

Publication number: CN211641021U
Application number: CN201922414784.3U
Authority: CN
Inventors: 邢兆良
Original assignee: Changzhou Rufa Machinery Co ltd
Current assignee: Changzhou Rufa Machinery Co ltd
Priority date: 2019-12-28
Filing date: 2019-12-28
Publication date: 2020-10-09
Anticipated expiration: 2029-12-28

Abstract

The utility model belongs to the technical field of the plastic moulding hot melt, concretely relates to hot-blast heat sealing machine. This hot-blast heat sealing machine includes: the device comprises a rack, wherein a pressurizing mechanism and a metal conduction hot melting mechanism are arranged on the rack; the metal conduction hot melting mechanism is suitable for carrying out hot melting on the laminated wiredrawing cloth positioned at the inlet of the pressurizing mechanism and the upper and lower edge covering belts; the pressurizing mechanism is suitable for pressurizing, welding and conveying the hot-melted wiredrawing cloth and the upper and lower edge covering belts. This hot-blast heat sealing machine, the required heat of welding adopts the heat-conduction mode to obtain, and hot-blast discharge after passing hot-blast chamber need not hot-blast direct contact wiredrawing cloth and upper and lower bordure area, and the heat output scope is concentrated, prevents hot-blast diffusion, avoids leading to the phenomenon that material fold warp, the peripheral bright limit that produces of welding department, promotes welding quality. The small-volume hot air cavity is welded in a heat conduction mode, high-temperature heat can be continuously output, and welding efficiency is high.

Description

Hot air welding machine

Technical Field

The utility model belongs to the technical field of the plastic moulding hot melt, concretely relates to hot-blast heat sealing machine.

Background

The hot air welding machine is widely used for the equipment for the seaming, gluing and sealing of PVC, TPU, PE and other material products, the sealing is realized by hot air welding and pressurization of adhesive tapes made of the same material, and the product and the adhesive tapes can move synchronously while pressurization is carried out.

As a heat fusion welder, CN109070485A discloses a fusion apparatus for an inflatable structure. The method comprises the following steps: a body portion; a connecting part arranged on the main body part; an edge member supply unit provided in the main body unit and configured to supply an edge member; a hot air injection unit arranged at the connecting part and used for injecting hot air to the edge parts of the upper end and the lower end of the wiredrawing cloth; and a pressing part provided in the main body part and configured to fuse the heated wire-drawing cloth and the edge member by pressing. The covering is performed by thermally fusing edges of a pair of pads formed in such a manner that a housing space for housing air is formed inside, and particularly, by thermally fusing edge members formed at edges of the wiredrawing cloth. As shown in fig. 1, the pressing portion includes a lower pulley 1 and an upper pulley 2, and the edge member includes an upper edge band a and a lower edge band B. In this process, the laminated structure formed around the edge of the wiredrawing cloth C is thermally welded by simultaneously spraying hot air to the upper and lower portions around the edge of the wiredrawing cloth C and then pressurizing with the lower pulley 1 and the upper pulley 2, whereby the laminated structure formed around the edge of the wiredrawing cloth C can be thermally welded simultaneously in a single process, and thus the work process can be simplified.

The welding mode has the advantages that hot air directly blows materials oppositely, the spraying range of the hot air is wide, heat is easy to diffuse, the materials are prone to wrinkling and deformation, bright edges are easy to generate on the welding periphery, and welding quality is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hot-blast heat sealing machine to solve the easy diffusion of welding heat of current hot-blast heat sealing machine, the peripheral easy technical problem who produces the bright border of welding.

In order to solve the technical problem, the utility model provides a hot air welding machine, which comprises a frame, wherein a pressurizing mechanism and a metal conduction hot melting mechanism are arranged on the frame;

the metal conduction hot melting mechanism is suitable for carrying out hot melting on the laminated wiredrawing cloth positioned at the inlet of the pressurizing mechanism and the upper and lower edge covering belts;

the pressurizing mechanism is suitable for pressurizing, welding and conveying the hot-melted wiredrawing cloth and the upper and lower edge covering belts.

Further, the metal conduction hot melting mechanism comprises two air blowing wedges which are oppositely arranged, each air blowing wedge comprises a welding part and a heating part, a hot air cavity is formed in the heating part in a hollow mode, and an air inlet end and an air outlet end are formed in the hot air cavity;

the welding part is suitable for receiving heat conducted by the hot air cavity so as to enable the laminated wiredrawing cloth passing through the inlet of the pressurizing mechanism to be in hot melting with the upper and lower wrapping bands.

Further, a heat-conducting plate is fixedly arranged on the inner wall of the hot air cavity, the heat-conducting plate divides the hot air cavity into an air inlet channel and an air outlet channel, the air inlet channel is communicated with the air inlet end, and the air outlet channel is communicated with the air outlet end;

a bending channel is formed between the front end of the heat conducting plate and the welding part, and the bending channel is communicated with the air inlet channel and the air outlet channel.

Further, the pressurizing mechanism is a double-wheel set coaxial pressurizing mechanism, the double-wheel set coaxial pressurizing mechanism comprises an upper belt wheel and a lower belt wheel which are arranged in a synchronous rotating mode, and the upper belt wheel and the lower belt wheel are suitable for pressurizing, welding and conveying the upper edge covering belt, the outer side section of the wire drawing cloth and the lower edge covering belt which are stacked;

the outer side of the upper belt wheel is coaxially provided with a feeding wheel, and the outer side of the lower belt wheel is coaxially provided with a discharging wheel;

the feeding wheel and the discharging wheel are suitable for pressure welding and conveying of the inner side sections of the passing wiredrawing cloth;

the upper belt wheel, the lower belt wheel, the upper blanking wheel and the lower blanking wheel form a double-wheel-set structure and then synchronously rotate, so that the laminated wiredrawing cloth, the upper wrapping belt and the lower wrapping belt are synchronously pressurized, welded and conveyed.

Further, an upper belt conveying motor is arranged on one side of the upper belt wheel, and the upper belt conveying motor drives the feeding wheel and the upper belt wheel to synchronously rotate through an upper transmission assembly;

a lower belt conveying motor is arranged on one side of the lower belt wheel and drives the blanking wheel and the lower belt wheel to synchronously rotate through a lower transmission assembly;

the upper belt conveying motor and the lower belt conveying motor rotate and are transmitted through the upper transmission assembly and the lower transmission assembly, so that the upper belt wheel and the lower belt wheel and the upper and lower discharging wheels form a double-wheel-group structure and then synchronously rotate;

the structure of the lower transmission assembly is the same as that of the upper transmission assembly.

The feeding mechanism comprises a material guiding block, and the material guiding block is divided into a connecting section and a material guiding section;

the connecting section is suitable for fixedly connecting the material guide blocks;

the material guiding section is provided with a U-shaped hole which is suitable for guiding the edge wrapping belt into a U shape and outputting the U-shaped edge wrapping belt.

Furthermore, an auxiliary guide block is fixedly arranged on the feeding side of the guide block;

the auxiliary guide block is provided with a V-shaped guide hole which is suitable for guiding the edge wrapping belt into a V shape and outputting the V-shaped guide hole.

Further, the feeding mechanism also comprises a reel for placing the rolled edge wrapping tape;

a limiting column is vertically arranged at the center of the unwinding disc, and the coiled edge wrapping band is sleeved on the limiting column and is suitable for limiting the unwinding of the coiled edge wrapping band to be discharged out of the unwinding disc;

one side of the unreeling disc is provided with a tensioning assembly which is suitable for being matched with a limiting column to tension a coiled edge wrapping belt;

one side of the belt releasing disc is vertically provided with a guide post suitable for guiding a traction edge wrapping belt.

The material guide device further comprises a rotary material guide mechanism, wherein the rotary material guide mechanism comprises an upper rotary column and a lower rotary column which can rotate horizontally;

the upper rotary column and the lower rotary column are suitable for relative movement so as to clamp the wiredrawing cloth;

and feeding the edge of the clamped wiredrawing cloth at the inlet of the pressurizing mechanism, and driving the clamped wiredrawing cloth to rotate by taking the upper rotating column and the lower rotating column as the circle centers so as to enable the pressurizing mechanism to pressurize, weld and convey the right-angle semicircular edge of the clamped wiredrawing cloth.

Further, the rotary material guide mechanism also comprises an upper bracket and a lower bracket;

the lower support is fixedly provided with a rotary column base, and the lower rotary column is rotatably arranged on the rotary column base;

the fixed setting of upper bracket is suitable for driving and goes up the lower rotary column and do elevating movement's pushing down cylinder down, it rotates the output that sets up at pushing down cylinder to go up the rotary column.

The beneficial effects of the utility model are that, the utility model discloses a hot-blast heat sealing machine sets up and blows the wind heat and carves, and with the hot-blast intracavity of air injection of external heating formation thermal cycle, the heat of hot-blast chamber conduction is received to the weld part, and hot melt welding passes hot-blast heat sealing machine and adds the drawing cloth and the upper and lower bordure area of splenium entrance. The heat required by welding is obtained in a heat conduction mode, hot air is discharged after passing through the hot air cavity, hot air is not required to directly contact the wiredrawing cloth with the upper and lower edge wrapping bands, the heat output range is concentrated, hot air diffusion is prevented, the phenomenon that material wrinkles deform and bright edges are generated on the periphery of a welding position is avoided, and the welding quality is improved. The small-volume hot air cavity is welded in a heat conduction mode, high-temperature heat can be continuously output, and welding efficiency is high.

The double-wheel-set coaxial pressurizing mechanism is arranged, the upper and lower discharging wheels are coaxially arranged on one side of the upper and lower belt wheels, and the upper and lower discharging wheels are suitable for pressurizing and conveying the inner side sections of the passing wiredrawing cloth. The four conveying wheels synchronously rotate to synchronously pressurize and convey the wiredrawing cloth, the upper wrapping belt and the lower wrapping belt. The wiredrawing cloth is not easy to slip due to resistance, and the phenomenon that the inner side section of the wiredrawing cloth moves out between the upper edge wrapping belt and the lower edge wrapping belt to influence the welding effect is avoided.

The edge wrapping belt passing through the U-shaped hole is guided into a U shape and output through the material guide block arranged on the feeding side of the pressurizing part. The pressure welding conveying of the pressure mechanism is convenient. The edge wrapping belt is prevented from deviating, the probability of insecure welding or welding missing of the wiredrawing cloth is reduced, and the pressurizing welding effect is improved. An auxiliary guide block is additionally arranged, the edge wrapping belt is guided into a V shape through a V-shaped guide hole and output, and the auxiliary guide block guides the material. The edge wrapping belt is guided into a V shape through the V-shaped guide hole, transited and then enters the U-shaped hole to be guided into a U shape, so that the edge wrapping belt is guided more smoothly.

Set up rotatory guide mechanism, go up rotary column and lower rotary column relative motion in order to clamp the wire drawing cloth in placing the district, go up rotary column and lower rotary column and rotate the setting. The edge of the clamped wiredrawing cloth is fed at the inlet of the pressurizing mechanism, and the clamped wiredrawing cloth is driven to rotate by taking the upper rotating column and the lower rotating column as the circle centers, so that the pressurizing mechanism pressurizes, welds and conveys the right-angle semicircular edge of the clamped material to be welded. Need not artifical rotatory during the welding, ensure that the material is rotatory nature, be suitable for the material welding that the material is bulky, weight is heavy, the welding is turned round and is not broken, promotes welding quality.

In another aspect, the utility model also provides a hot-blast heat sealing machine, with above-mentioned utility model difference be:

the pressurizing mechanism is a double-wheel set different-shaft pressurizing mechanism, the double-wheel set different-shaft pressurizing mechanism comprises an upper belt wheel and a lower belt wheel which are arranged in a synchronous rotating mode, and the upper belt wheel and the lower belt wheel are suitable for pressurizing, welding and conveying the upper edge covering belt, the outer side section of the wiredrawing cloth and the lower edge covering belt which are stacked;

the device also comprises an upper discharging wheel and a lower discharging wheel which are synchronously and rotatably arranged, wherein the upper discharging wheel and the lower discharging wheel are suitable for pressure welding and conveying the inner side sections of the passing wiredrawing cloth;

the lower belt wheel and the upper belt wheel have synchronous rotating speed V1, the blanking wheel and the feeding wheel have synchronous rotating speed V2, and V1 is not less than V2.

Further, the rack comprises an upper rack and a lower rack;

an upper feeding motor is arranged on one side of the feeding wheel, an upper feeding arm is fixedly arranged on the upper rack, and the upper feeding motor drives the feeding wheel to rotate through the upper feeding arm;

a lower feeding motor is arranged on one side of the blanking wheel and fixedly arranged on the lower rack, and the lower feeding motor drives the blanking wheel to rotate through a lower transmission arm;

an upper belt conveying motor is arranged on one side of the upper belt wheel and drives the upper belt wheel to rotate through an upper transmission assembly;

a lower belt conveying motor is arranged on one side of the lower belt wheel and drives the lower belt wheel to rotate through a lower transmission assembly;

the upper feeding motor, the lower feeding motor, the upper belt conveying motor and the lower belt conveying motor rotate and are respectively transmitted by the upper transmission arm, the lower transmission arm, the upper transmission assembly and the lower transmission assembly, so that the upper feeding wheel, the lower feeding wheel, the upper belt wheel and the lower belt wheel form a double-wheel-set structure and then synchronously or differentially rotate.

The beneficial effects of the utility model are that, the utility model discloses a hot-blast heat sealing machine, the difference with embodiment one lies in setting up the heterotaxis loading system of double round group, and upper and lower band pulley and upper and lower unloading wheel form the double round group structure, and the synchronous slew velocity of upper and lower band pulley more than or equal to upper and lower synchronous slew velocity of unloading wheel to the drawing of silk cloth and upper and lower bordure area pressurization of messenger's process are carried. The wiredrawing cloth is not easy to slip due to resistance, and the phenomenon that the inner side section of the wiredrawing cloth moves out between the upper edge wrapping belt and the lower edge wrapping belt to influence the welding effect is avoided. V2 is not more than V1, the upper and lower edge wrapping bands and the wire drawing cloth are synchronously pressurized, conveyed and fed, the material is easy to turn round corners, the welding is not easy to fold, and the welding quality is improved.

The third aspect, the utility model also provides a hot-blast heat sealing machine's working method, include:

the edge wrapping belt penetrates through the auxiliary guide block and the material guide block to be guided into an upper edge wrapping belt and a lower edge wrapping belt and then is laminated with the wire drawing cloth;

the air heated from the outside passes through the hot air cavity of the air blowing wedge to form heat circulation; the heat of the hot air is conducted to the welding part of the blowing hot wedge, so that the hot melting of the welding part is realized by the laminated wiredrawing cloth, the upper and the lower binding bands;

the upper and lower feeding wheels and the upper and lower belt wheels form a double-wheel set structure and then rotate synchronously or in a differential speed manner, so that the hot-melted wiredrawing cloth is pressurized, welded and conveyed with the upper and lower wrapping bands.

Further, the working method is suitable for being realized by the hot air welding machine.

The beneficial effects of the utility model are that, the utility model discloses a hot-blast heat sealing machine's operating method, bordure area easily unreel through the unreeling dish via the direction of supplementary guide block and guide block again to make bordure area form the structure that is suitable for range upon range of wiredrawing cloth, make things convenient for follow-up pressure welding to carry.

External hot air forms circulation through a hot air cavity of the blowing hot wedge, and the heat of the hot air is conducted to the welding part to heat the welding part. The small-volume hot air cavity is welded in a heat conduction mode, high-temperature heat can be continuously output, and welding efficiency is high.

The upper belt wheel and the lower belt wheel and the upper and the lower belt wheels form a double-wheel-set structure. When V1 is equal to V2, the upper and lower belt wheels and the upper and lower blanking wheels synchronously rotate so that the passing wiredrawing cloth and the upper and lower edge covering belts are subjected to straight-going pressure welding and conveying. When V1 is larger than V2, the upper and lower belt wheels and the upper and lower blanking wheels rotate in a differential speed, so that the passing wiredrawing cloth and the upper and lower edge covering belts are subjected to fillet-rotating pressure welding and conveying. The rotating speed is flexibly adjusted, and the pressurizing and conveying requirements of straight or round materials are met.

In a fourth aspect, the present invention further provides a method for using a hot air welding machine, including:

unwinding the edge wrapping belt which is drawn into a roll, and winding the edge wrapping belt around the guide post, sequentially passing through the auxiliary guide block and the material guide block, and then laminating the edge wrapping belt with the wire drawing cloth;

the upper edge wrapping belt, the outer side section of the wire drawing cloth and the lower edge wrapping belt which are stacked penetrate through the inosculation part of the upper belt wheel and the lower belt wheel, the inner side section of the wire drawing cloth penetrates through the inosculation part of the upper feeding wheel and the lower feeding wheel, the welding part of the air blowing hot wedge is pressed into the inlet of the pressurizing mechanism, and the wire drawing cloth which passes through the pressurizing mechanism is hot-melted with the upper edge wrapping belt and the lower edge wrapping belt after being heated;

the upper belt wheel and the lower belt wheel rotate synchronously or at different speeds with the upper feeding wheel and the lower feeding wheel, so that the hot-melted wiredrawing cloth and the upper and lower edge covering belts are pressurized, welded and conveyed.

The beneficial effects of the utility model are that, the utility model discloses a hot-blast heat sealing machine's application method, with the hot-blast intracavity of air injection formation thermal cycle of external heating, the heat that the hot-blast chamber was conducted is received to the weld part, and hot melt welding passes hot-blast heat sealing machine and adds the wiredrawing cloth and upper and lower bordure area of splenium entrance. The heat required by welding is obtained in a heat conduction mode, hot air is discharged after passing through the hot air cavity, hot air is not required to directly contact the wiredrawing cloth with the upper and lower edge wrapping bands, the heat output range is concentrated, hot air diffusion is prevented, the phenomenon that material wrinkles deform and bright edges are generated on the periphery of a welding position is avoided, and the welding quality is improved. The small-volume hot air cavity is welded in a heat conduction mode, high-temperature heat can be continuously output, and welding efficiency is high.

The material is conveyed in a straight line or round corner pressurizing mode only by penetrating the material into an inlet of the pressurizing mechanism and rotating the upper belt wheel and the lower belt wheel with the upper feeding wheel and the lower feeding wheel by adopting a double-wheel-set pressurizing mechanism. The operation is simple and rapid, the wiredrawing cloth is not easy to slip due to resistance, and the phenomenon that the inner side section of the wiredrawing cloth moves out between the upper edge wrapping belt and the lower edge wrapping belt to influence the welding effect is avoided. The fillet is easy to be turned by the material, the welding is not easy to fold, and the welding quality is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a single-wheel set pressurizing mechanism of a hot air welding machine in the prior art;

fig. 2 is a schematic structural view of a preferred embodiment of a double-wheel-set coaxial pressurizing mechanism of the hot air welding machine of the present invention;

fig. 3 is a schematic structural view of a preferred embodiment of a double-wheel set different-shaft pressurizing mechanism of the hot air welding machine of the present invention;

FIG. 4 is a schematic structural view of a preferred embodiment of the blowing heat wedge of the present invention;

fig. 5 is a cross-sectional view of fig. 4 of the present invention;

fig. 6 is a schematic structural view of the upper and lower belt feeding motors of the dual-wheel set coaxial pressurizing mechanism of the present invention cooperating with the upper and lower transmission assemblies;

FIG. 7 is a schematic structural view of a preferred embodiment of the mounting structure for the belt wheel and the material wheel and the rotating shaft of the present invention;

fig. 8 is a perspective view of a preferred embodiment of a double-wheel set different-axis pressurizing mechanism of the hot air welding machine of the present invention;

fig. 9 is a schematic structural view of the lower transmission arm of the present invention;

fig. 10 is a schematic structural view of an upper transmission arm of the present invention;

fig. 11 is a schematic structural view of the upper and lower belt feeding motors of the dual-wheel set different-axis pressurizing mechanism of the present invention cooperating with the upper and lower transmission assemblies;

fig. 12 is a schematic structural diagram of a preferred embodiment of a feeding mechanism of the hot air welding machine of the present invention;

fig. 13 is a schematic structural view of a preferred embodiment of a rotary material guiding mechanism of the hot air welding machine of the present invention;

fig. 14 is a schematic structural view of a preferred embodiment of the hot air welding machine (employing a dual-wheel set coaxial pressurizing mechanism) according to the present invention;

fig. 15 is a schematic structural view of a preferred embodiment of the hot air fusion splicer (employing a double-wheel-set different-axis pressurizing mechanism) according to the present invention.

In the figure:

1. welding the part; 2. a heat receiving unit; 3. a hot air cavity; 311. an air inlet channel; 312. bending the channel; 313. an air outlet channel; 4. an air inlet end; 5. an air outlet end; 6. a heat conducting plate; 7. an upper belt wheel; 8. a lower belt wheel; 9. a feeding wheel; 10. a blanking wheel; 11. a belt feeding motor; 12. an upper transmission assembly; 13. a lower belt conveying motor; 14. a lower transmission assembly; 15. an inner snap ring; 16. an outer snap ring; 17. an upper feeding motor; 18. an upper transmission arm; 19. a lower feeding motor; 20. a lower drive arm; 21. a push cylinder; 22. a material guide block; 23. an auxiliary guide block; 24. a cross sliding table; 25. releasing the reel; 26. a limiting column; 27. a tensioning assembly; 28. a guide post; 29. upward rotating the column; 30. a lower rotary column; 31. an upper bracket; 32. a lower bracket; 33. a column base; 34. pressing down the air cylinder; A. wrapping the edge band; B. a lower edge wrapping band; C. and (4) wiredrawing cloth.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

As shown in fig. 2 and 14, the hot air fusion splicer of the present embodiment includes a frame, and a pressurizing mechanism and a metal conduction fusion-splicing mechanism are disposed on the frame. The metal conduction hot melting mechanism is suitable for carrying out hot melting on the laminated wiredrawing cloth C positioned at the inlet of the pressurizing mechanism and the upper and lower edge wrapping bands. The pressurizing mechanism is suitable for pressurizing, welding and conveying the hot-melted wiredrawing cloth C and the upper and lower edge wrapping bands. The internal heat is conducted out through the metal conduction hot melting mechanism, and the hot melting wiredrawing cloth C, the upper and lower edge wrapping belts are subjected to pressure welding and conveying through the pressurizing mechanism. Hot air heat diffusion is avoided, material wrinkle deformation is not easy to cause, bright edges cannot be generated at the welding periphery, and welding quality is improved.

Specifically, as shown in fig. 4, the metal conduction hot melting mechanism includes two air blowing hot wedges oppositely disposed, each air blowing hot wedge includes a welding portion 1 and a heated portion 2, the heated portion 2 is hollow to form a hot air chamber 3, and the hot air chamber 3 is provided with an air inlet end 4 and an air outlet end 5. The air inlet end 4 is connected with an air inlet pipe and is suitable for injecting air heated by the air inlet pipe into the hot air cavity 3. The welding part 1 is adapted to receive heat conducted from the hot air chamber 3 to fuse the laminated wiredrawing cloth C passing through the inlet of the pressurizing mechanism with the upper and lower edge bands. The welding part 1 is suitable for receiving heat conducted by the hot air cavity 3 so as to lead the wiredrawing cloth C passing through the inlet of the pressurizing mechanism to be hot-melted with the upper and lower wrapping bands. The welding part 1 is formed into an arc structure suitable for being attached to the shape of the inlet of the pressurizing mechanism, so that heat is absorbed fully, and the heat efficiency is improved. The material of the wind blowing hot wedge is made of high-temperature heat-resistant material, namely stainless steel, the temperature can be set to 700 ℃, and the wind blowing hot wedge is durable. The heat required by welding is obtained in a heat conduction mode, hot air is discharged after passing through the hot air cavity 3, the hot air is not required to directly contact the wiredrawing cloth C with the upper and lower edge wrapping bands, the heat output range is concentrated, hot air diffusion is prevented, the phenomena of material fold deformation and bright edges generated at the periphery of a welding position are avoided, and the welding quality is improved.

As a preferred embodiment of the hot air chamber 3, as shown in fig. 5, a heat conducting plate 6 is fixedly disposed on an inner wall of the hot air chamber 3, the heat conducting plate 6 divides the hot air chamber 3 into an air inlet channel 311 and an air outlet channel 313, the air inlet channel 311 communicates with the air inlet end 4, and the air outlet channel 313 communicates with the air outlet end 5. A bent channel 312 is formed between the front end of the heat conducting plate 6 and the welding part 1, and the bent channel 312 is communicated with the air inlet channel 311 and the air outlet channel 313. The hot air cavity 3 is divided into an air inlet channel 311, a bending channel 312 and an air outlet channel 313 through the heat conducting plate 6, the path length of the hot air passing through the channel of the hot air cavity 3 is increased, the circulation time of the hot air in the channel of the hot air cavity 3 is prolonged, the heated part 2 and the heat conducting plate 6 can absorb more heat and conduct the heat to the welding part 1, the heat absorption rate is improved, and energy is saved. The welding process is not easy to generate smoke, the noise is low, and the environment-friendly requirement is met. A plurality of channels are arranged in the heating cavity 3, so that hot air can run in a circuitous way. The area of the heat absorption of the heated part 2 is increased, the volume of the heat wedge body is greatly reduced, and the working requirement of a place with compact space is met.

As shown in fig. 6 and 14, the pressurizing mechanism of the hot air fusion splicer is a double-wheel set coaxial pressurizing mechanism, the double-wheel set coaxial pressurizing mechanism comprises an upper belt wheel and a lower belt wheel which are arranged in a synchronous rotating mode, and the upper belt wheel and the lower belt wheel are suitable for pressurizing and conveying the passing laminated upper edge covering belt, the outer side section of the wiredrawing cloth and the lower edge covering belt. The outer side of the upper belt wheel 7 is coaxially provided with a feeding wheel 9, and the outer side of the lower belt wheel 8 is coaxially provided with a discharging wheel 10. The feeding wheel 9 and the discharging wheel 10 are suitable for pressurizing and conveying the inner side section of the passing wiredrawing cloth. The upper belt wheel, the lower belt wheel, the upper blanking wheel and the lower blanking wheel form a double-wheel-set structure and then synchronously rotate, so that the laminated wiredrawing cloth C and the upper and lower edge covering belts are synchronously pressurized and conveyed. The four conveying wheels synchronously rotate to synchronously pressurize and convey the wiredrawing cloth C and the upper and lower wrapping bands. The wiredrawing cloth C is not easy to slip due to resistance, and the phenomenon that the inner side section of the wiredrawing cloth moves out between the upper edge wrapping belt A and the lower edge wrapping belt B to influence the welding effect is avoided.

As shown in fig. 6, an upper belt conveying motor 11 is disposed on one side of the upper belt wheel 7, and the upper belt conveying motor 11 drives the feeding wheel 9 and the upper belt wheel 7 to rotate synchronously through an upper transmission assembly 12. One side of the lower belt wheel 8 is provided with a lower belt conveying motor 13, and a lower feeding motor 19 drives the lower material wheel 10 and the lower belt wheel 8 to synchronously rotate through a lower transmission assembly 14. The upper belt conveying motor 11 and the lower belt conveying motor 13 rotate and are transmitted by the upper transmission assembly 12 and the lower transmission assembly 14, so that the upper belt wheel and the lower belt wheel synchronously rotate after forming a double-wheel-set structure with the upper belt wheel and the lower belt wheel. The upper transmission assembly 12 comprises an upper rotating shaft and an upper connecting rod. The two ends of the upper connecting rod are respectively fixed with a first gear and a second gear, one end of the upper rotating shaft is fixedly provided with a feeding wheel 9 and an upper belt wheel 7, and the other end of the upper rotating shaft is fixedly provided with a driven gear. The output shaft of the upper belt conveying motor 11 is fixedly provided with a driving gear, the driving gear is connected with a first gear through a first chain, and a driven gear is connected with a second gear through a second chain. The lower drive assembly 14 is identical in construction to the upper drive assembly 12. The upper belt conveying motor and the lower belt conveying motor drive the upper belt wheel, the lower belt wheel, the upper discharging wheel and the lower discharging wheel to synchronously rotate through the upper transmission assembly and the lower transmission assembly, so that the pressurizing conveying of the edge covering belt and the wiredrawing cloth A is realized.

As shown in fig. 7, the mounting structure of the feeding wheel 9 and the upper belt wheel 7 with the upper rotating shaft includes:

go up the pivot and set up interior snap ring 15 and outer snap ring 16, material loading wheel 9 passes through interior snap ring 15 and fixedly sets up in last pivot, goes up band pulley 7 and passes through outer snap ring 16 and fixedly sets up in last pivot. A gap avoiding the upper and lower edge wrapping bands is formed between the feeding wheel 9 and the upper belt wheel 7. The mounting structure of the discharging wheel 10, the lower belt wheel 8 and the lower rotating shaft is the same as that of the feeding wheel 9, the upper belt wheel 7 and the upper rotating shaft. One connecting end of the inner snap ring 15 is provided with a locking bolt, and the other connecting end of the inner snap ring 15 is provided with a locking hole matched with the locking bolt. The locking bolt is screwed into the locking hole and is suitable for fixing the inner snap ring 15 on the upper rotating shaft. The inner snap ring 15 is provided with a positioning bolt, and the feeding wheel 9 is provided with a positioning hole matched with the positioning bolt. The positioning bolt is screwed into the positioning hole and is suitable for fixedly connecting the feeding wheel 9 with the inner clamping ring 15. The structure of the outer snap ring 16 is the same as that of the inner snap ring 15. The four conveying wheels are fixedly arranged on the corresponding rotating shafts through the inner snap ring and the outer snap ring. A gap is formed between the material wheel and the belt wheel to avoid the upper and lower edge wrapping belts, so that the pressurization conveying is convenient. The locking bolt and the positioning bolt are easy to fix and adjust the positions of the material wheel and the belt wheel on the rotating shaft, the gap is adjusted, and the conveying wheels are convenient to mount and dismount.

As shown in fig. 12, the hot air fusion splicer further includes a feeding mechanism, the feeding mechanism includes a material guiding block 22, and the material guiding block 22 is divided into a connecting section and a material guiding section. The connecting section is suitable for the material guiding block 22 to be fixedly connected, and the material guiding section is provided with a U-shaped hole which is suitable for guiding the edge covering belt into a U shape and outputting the U-shaped hole. The material guide section is provided with an auxiliary block, the auxiliary block is provided with an auxiliary hole with a structure consistent with that of the U-shaped hole, and the edge wrapping belt sequentially penetrates through the auxiliary hole and the U-shaped hole to be guided into a U shape and output. And the material guiding section and the auxiliary block are provided with avoiding grooves which are suitable for avoiding the blowing hot wedge of the hot air welding machine. The edge wrapping belt penetrates through the U-shaped hole to be guided into a U shape and output, the edges of two sides of the edge wrapping belt are parallel, the wiredrawing cloth C is convenient to wrap, the edge wrapping belt is prevented from deviating during subsequent pressure welding and conveying, the probability that the wiredrawing cloth C is not firm in welding or is not welded is reduced, and the pressure welding effect is improved.

As shown in fig. 12, an auxiliary guide block 23 is fixedly disposed on the feeding side of the guide block 22. The auxiliary guide block 23 is provided with a V-shaped guide hole adapted to guide the edge-covered belt into a V-shape and output. The limiting parts capable of adjusting positions are arranged in the holes of the two wings of the V-shaped guide hole, and are suitable for limiting the displacement of the edge of the inner wrapping band of the V-shaped guide hole. The limiting part comprises a sleeve ring and an adjusting bolt, the sleeve ring is sleeved on the wing edge of the auxiliary guide block 23, and the adjusting bolt penetrates through the sleeve ring and the V-shaped guide hole and is screwed tightly, so that the sleeve ring is suitable for being fixed on the wing edge of the auxiliary guide block 23. An auxiliary guide block 23 is additionally arranged, the edge wrapping belt is guided into a V shape through a V-shaped guide hole and output, and the auxiliary guide block 22 guides the material. The edge wrapping belt is guided into a V shape through the V-shaped guide hole, transited and then enters the U-shaped hole to be guided into a U shape, so that the edge wrapping belt is guided more smoothly.

As shown in fig. 12, the feeding mechanism further includes a cross slide table 24 fixedly disposed, and a mounting block is fixedly disposed at an upper end of the cross slide table 24. The connecting section of the guide block 22 is fixedly connected to the feeding side of the mounting block, and the auxiliary guide block 23 is fixedly connected to the other side of the mounting block through a connecting rod. The cross slide 24 is adapted to move the mounting block transversely or longitudinally relative to the pressing mechanism to adjust the relative position of the material guide block 22 and the pressing mechanism. The cross slide table 24 is also called a coordinate axis slide table and an XY axis slide table, and refers to a combined slide table formed by combining two sets of linear slide tables in the X axis direction and the Y axis direction. For the sake of prior art, this embodiment will not be described in detail.

As shown in fig. 12, the feeding mechanism further comprises a take-off reel 25 adapted to place a rolled edge strip. The vertical spacing post 26 that sets up in center department of unreeling the dish 25, the edge wrapping band cover of lapping is on spacing post 26, shifts out the dish 25 of unreeling when being suitable for the edge wrapping band of restriction lapping to unreel. One side of the unwinding disc 25 is provided with a tensioning assembly 27 which is suitable for being matched with the limiting column 26 to tension the coiled edge wrapping belt. Specifically, the tensioning assembly 27 includes an upright post, a rubber rod, a traction sleeve and a tension spring. The stand passes through the bearing frame setting in one side of unreeling the dish 25, and glue stick fixed connection is on the stand. The traction sleeve is fixedly arranged on the stand column, one end of the tension spring is fixedly arranged on the machine body, and the other end of the tension spring is fixedly connected with the traction sleeve through a connecting block. The tension spring retracts to pull the traction sleeve to rotate towards the direction of the auxiliary guide block 23, and the traction sleeve drives the rubber rod to rotate towards the belt releasing disc 25 through the upright column, so that the rubber rod is matched with the limiting column 26 to tension the edge wrapping belt which is rolled. One side of the unwinding disc 25 is vertically provided with a guide post 28 adapted to guide the traction belting. Two position adjustable stop rings are provided on the guide post 28, adapted to limit the displacement of the edge of the over-wrap band around the guide post 28. Through the cooperation of the unreeling disc 25, the limiting column 26 and the tensioning assembly 27, the placing, unreeling and tensioning of the coiled edge wrapping belt are realized, and the subsequent guiding operation of the edge wrapping belt is facilitated.

As shown in fig. 13, the hot air welding machine further includes a rotary material guiding mechanism, and the rotary material guiding mechanism includes an upper rotary column 29 and a lower rotary column 30 which can rotate horizontally. The upper rotary post 29 and the lower rotary post 30 are adapted to make relative movements to clamp the wiredrawing cloth C. The edge of the clamped wiredrawing cloth C is fed at the inlet of the pressurizing mechanism, and the clamped wiredrawing cloth C is driven to rotate by taking the upper rotating column 29 and the lower rotating column 30 as the circle centers, so that the pressurizing mechanism pressurizes, welds and conveys the right-angle semicircular edge of the clamped wiredrawing cloth C. Preferably, the upper surface of the lower rotary post 30 is positioned on the same plane as the inlet of the pressurizing mechanism, so that the edge of the wiredrawing cloth C is smoothly and naturally welded and rotated. Need not artifical rotatory during the welding, ensure that the material is rotatory nature, be suitable for the material welding that the material is bulky, weight is heavy, the welding is turned round and is not broken, promotes welding quality.

As shown in fig. 13, the rotary material guiding mechanism further includes an upper support 31 and a lower support 32. The lower support 32 is fixedly provided with a rotary column base 33, and the lower rotary column 30 is rotatably arranged on the rotary column base 33. The upper bracket 31 is fixedly provided with a lower air cylinder 34 which is suitable for driving the upper rotary column 29 to do lifting motion towards the lower rotary column 30, and the upper rotary column 29 is rotatably arranged at the output end of the lower air cylinder 34. The lower bracket 32 is provided with a lower guide hole, and a first bolt is arranged in the lower guide hole. The front end of the first bolt penetrates through the lower guide hole to be in threaded connection with the rotary column base 33, and the first bolt is suitable for adjusting the distance between the rotary column base 33 and the pressurizing mechanism. The column base 33 is moved on the lower frame 32 along the lower guide hole only by loosening the first bolt, so as to adjust the distance between the column base 33 and the pressing mechanism. The upper bracket 31 is fixedly provided with a mounting block, the mounting block is provided with a transverse guide hole, and a second bolt is arranged in the transverse guide hole. The front end of the second bolt penetrates through the transverse guide hole to be in threaded connection with the lower air cylinder 34, and the second bolt is suitable for adjusting the distance between the lower air cylinder 34 and the pressurizing mechanism. The lower air cylinder 34 is moved on the mounting block along the transverse guide hole by unscrewing the second bolt, so as to adjust the distance between the lower air cylinder 34 and the pressurizing mechanism. The mounting block is provided with a vertical guide hole, and a third bolt is arranged in the vertical guide hole. The front end of the third bolt passes through the vertical guide hole to be screwed with the upper bracket 31, and is suitable for adjusting the distance between the mounting block and the lower rotary column 30. The upper bracket 31 is moved on the mounting block along the vertical guide hole only by unscrewing the third bolt, so as to adjust the distance between the mounting block and the lower column 30. The operation is simple, and the maintenance is convenient.

Example two

As shown in fig. 3, 8 and 15, the present invention provides another alternative embodiment of a pressurization mechanism.

The difference from the first embodiment is that:

the pressurizing mechanism is a double-wheel set different-shaft pressurizing mechanism, the double-wheel set different-shaft pressurizing mechanism comprises an upper belt wheel and a lower belt wheel which are arranged in a synchronous rotating mode, and the upper belt wheel and the lower belt wheel are suitable for pressurizing, welding and conveying the upper edge wrapping belt A, the outer side section of the wire drawing cloth and the lower edge wrapping belt C which pass through the upper edge wrapping belt A, the wire drawing cloth and the lower edge wrapping belt C in. The double-wheel-set different-shaft pressurizing mechanism further comprises an upper feeding wheel and a lower feeding wheel which are arranged in a synchronous rotating mode, and the upper feeding wheel and the lower feeding wheel are suitable for pressure welding and conveying of the inner side sections of the passing wiredrawing cloth. The lower belt wheel 8 and the upper belt wheel 7 have synchronous rotating speed V1, the blanking wheel 10 and the feeding wheel 9 have synchronous rotating speed V2, and V1 is more than or equal to V2.

The upper belt wheel, the lower belt wheel, the upper belt wheel and the lower belt wheel form a double-wheel-set structure, and the synchronous rotating speed of the upper belt wheel and the lower belt wheel is more than or equal to that of the upper belt wheel and the lower belt wheel, so that the passing wiredrawing cloth C and the upper belt wrapping band and the lower belt wrapping band are conveyed in a pressurized mode. The wiredrawing cloth C is not easy to slip due to resistance, and the phenomenon that the inner side section of the wiredrawing cloth moves out between the upper edge wrapping belt A and the lower edge wrapping belt C to influence the welding effect is avoided. V1 is not less than V2, and the upper and lower edge wrapping belts and the wiredrawing cloth C are synchronously pressurized and conveyed to feed. When the fillet edge is welded to the material, the edge wrapping belt is prevented from folding due to elastic stretching and extending, the fillet is easily formed by the material, and the welding quality is improved.

As shown in fig. 8 and 11, the rack includes an upper rack and a lower rack. An upper feeding motor 17 is arranged on one side of the feeding wheel 9, an upper transmission arm 18 is fixedly arranged on the upper frame, and the upper feeding motor 17 drives the feeding wheel 9 to rotate through the upper transmission arm 18. One side of the discharging wheel 10 is provided with a lower feeding motor 19, the lower feeding motor 19 is fixedly arranged on the lower frame, and the lower feeding motor 19 drives the discharging wheel 10 to rotate through a lower transmission arm 20. One side of the upper belt wheel 7 is provided with an upper belt conveying motor 11, and the upper belt conveying motor 11 drives the upper belt wheel 7 to rotate through an upper transmission assembly 12. One side of the lower belt wheel 8 is provided with a lower belt conveying motor 13, and the lower belt conveying motor 13 drives the lower belt wheel 8 to rotate through a lower transmission assembly 14. The upper and lower feeding motors and the upper and lower belt conveying motors rotate and are respectively transmitted by the upper and lower transmission arms and the upper and lower transmission assemblies, so that the upper and lower feeding wheels, the upper and lower belt wheels form a double-wheel-set structure and then synchronously or differentially rotate. The upper and lower feeding motors rotate with the upper and lower belt conveying motors and are transmitted with the upper and lower transmission assemblies through the upper and lower transmission arms, so that the upper and lower feeding wheels, the upper and lower belt wheels form a double-wheel-set structure and then synchronously or differentially rotate. The upper belt conveying motor and the lower belt conveying motor drive the upper belt wheel and the lower belt wheel to synchronously rotate through the upper transmission assembly and the lower transmission assembly, so that the pressurizing conveying of the edge covering belt and the wiredrawing cloth C is realized.

As shown in fig. 9, the lower driving arm 20 includes a fixedly disposed arm housing, a third gear, a fourth gear, and a chain. The arm shell is arranged in a hollow mode, the third gear and the fourth gear are arranged in the cavity of the arm shell, and the third gear and the fourth gear are arranged at two ends of the chain respectively. An output shaft of the lower feeding motor 19 penetrates through the arm shell to be fixedly connected with a third gear, and the discharging wheel 10 is fixedly connected with the third gear through a rotating shaft. The upper drive arm 18 has the same structure as the lower drive arm 20. Through corresponding gear, axis of rotation and chain drive, the design is simple, and standard accessory sets up, and it is simple and easy convenient to maintain and change.

As shown in fig. 10, the upper actuator arm 18 is hinged to the upper frame by a pin. The upper frame is hinged with a pushing cylinder 21, and the output end of the pushing cylinder 21 is hinged with one end, far away from the feeding wheel 9, of the upper moving arm 18. The pushing cylinder 21 pushes the upper moving arm 18 downwards to drive the upper moving arm 18 to rotate by taking the pin shaft as a shaft, and the pulling device is suitable for lifting the feeding wheel 9 to pick and place the wiredrawing cloth C and the upper and lower wrapping bands. The upper transmission arm 18 is driven by the pushing cylinder 21 to rotate around the pin shaft, so that the feeding wheel 9 is lifted, and the wiredrawing cloth C and the edge wrapping belt are conveniently taken and placed.

EXAMPLE III

As shown in fig. 2 to 15, on the basis of the first embodiment or the second embodiment, the third embodiment provides a working method of a hot air welding machine, which is implemented by using the hot air welding machine of the first embodiment or the second embodiment.

The coiled edge wrapping belt is unreeled through a unreeling disc 25 and guided and pulled through a guide post 28, the edge wrapping belt penetrates through an auxiliary guide block 23 and then is guided into a V shape, and the V-shaped edge wrapping belt penetrates through a material guide block 22 and is guided into a U shape and then is laminated with the wire drawing cloth.

The air heated by the outside is injected into the hot air cavity 3 from the air inlet end 4 of the blowing hot wedge and is discharged through the air outlet end 5 to form a thermal cycle. In the circulating operation process of the hot air, the heat of the hot air is conducted to the welding part 1 of the blowing hot wedge, so that the hot melting laminated wiredrawing cloth, the upper wrapping band and the lower wrapping band of the welding part 1 are realized.

The upper and lower feeding wheels and the upper and lower belt wheels form a double-wheel set structure and then rotate synchronously or in a differential speed manner, so that the hot-melted wiredrawing cloth C is pressurized, welded and conveyed with the upper and lower wrapping bands.

Example four

As shown in fig. 2 to 15, on the basis of the third embodiment, the fourth embodiment provides a method for using a hot air welding machine, which is implemented by using the hot air welding machine of the first embodiment or the second embodiment.

And unwinding the edge wrapping belt which is drawn into a roll, and passing the edge wrapping belt around the guide post 28, sequentially passing through the auxiliary guide block 23 and the guide block 22, and then laminating the edge wrapping belt with the wiredrawing cloth C.

The upper edge wrapping belt A, the outer section of the wiredrawing cloth and the lower edge wrapping belt B which are stacked penetrate into the inosculation part of the upper belt wheel and the lower belt wheel, the inner section of the wiredrawing cloth penetrates into the inosculation part of the upper material feeding wheel and the lower material feeding wheel, the welding part 1 of the air blowing hot wedge is propped into the inlet of the pressurizing mechanism, and the wiredrawing cloth C which penetrates through the pressurizing mechanism is subjected to hot melting with the upper edge wrapping belt and the lower edge wrapping belt after being heated.

The upper belt wheel and the lower belt wheel rotate synchronously or at different speeds with the upper feeding wheel and the lower feeding wheel, so that the hot-melted wiredrawing cloth C is conveyed with the upper wrapping belt and the lower wrapping belt in a pressure welding way.

The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A hot air welding machine is characterized by comprising a rack, wherein a pressurizing mechanism and a metal conduction hot melting mechanism are arranged on the rack;

2. The hot air fusion machine of claim 1,

the metal conduction hot melting mechanism comprises two air blowing wedges which are oppositely arranged, each air blowing wedge comprises a welding part (1) and a heated part (2), each heated part (2) is hollow to form an air chamber (3), and each air chamber (3) is provided with an air inlet end (4) and an air outlet end (5);

the welding part (1) is suitable for receiving heat conducted by the hot air cavity (3) so as to lead the laminated wiredrawing cloth passing through the inlet of the pressurizing mechanism to be hot-melted with the upper and lower wrapping bands.

3. The hot air fusion machine of claim 2,

a heat-conducting plate (6) is fixedly arranged on the inner wall of the hot air cavity (3), the hot air cavity (3) is divided into an air inlet channel (311) and an air outlet channel (313) by the heat-conducting plate (6), the air inlet channel (311) is communicated with the air inlet end (4), and the air outlet channel (313) is communicated with the air outlet end (5);

a bending channel (312) is formed between the front end of the heat conducting plate (6) and the welding part (1), and the bending channel (312) is communicated with the air inlet channel (311) and the air outlet channel (313).

4. The hot air fusion machine of claim 1,

the pressurizing mechanism is a double-wheel-set coaxial pressurizing mechanism, the double-wheel-set coaxial pressurizing mechanism comprises an upper belt wheel and a lower belt wheel which are arranged in a synchronous rotating mode, and the upper belt wheel and the lower belt wheel are suitable for pressurizing, welding and conveying the upper edge wrapping belt, the outer side section of the wire drawing cloth and the lower edge wrapping belt which are stacked;

a feeding wheel (9) is coaxially arranged on the outer side of the upper belt wheel (7), and a discharging wheel (10) is coaxially arranged on the outer side of the lower belt wheel (8);

the feeding wheel (9) and the discharging wheel (10) are suitable for pressure welding and conveying the inner side sections of the passing wiredrawing cloth;

5. The hot air fusion machine of claim 4,

an upper belt conveying motor (11) is arranged on one side of the upper belt wheel (7), and the upper belt conveying motor (11) drives the feeding wheel (9) and the upper belt wheel (7) to synchronously rotate through an upper transmission assembly (12);

a lower belt conveying motor (13) is arranged on one side of the lower belt wheel (8), and the lower belt conveying motor (13) drives the discharging wheel (10) and the lower belt wheel (8) to synchronously rotate through a lower transmission assembly (14);

the upper belt conveying motor (11) and the lower belt conveying motor (13) rotate and are transmitted through the upper transmission assembly (12) and the lower transmission assembly (14), so that the upper belt wheel, the lower belt wheel, the upper feeding wheel and the lower feeding wheel form a double-wheel-set structure and then synchronously rotate;

the structure of the lower transmission assembly (14) is the same as that of the upper transmission assembly (12).

6. The hot air fusion machine of claim 1,

the lower belt wheel (8) and the upper belt wheel (7) have synchronous rotating speed V1, the blanking wheel (10) and the feeding wheel (9) have synchronous rotating speed V2, and V1 is not less than V2.

7. The hot air fusion machine of claim 6,

the rack comprises an upper rack and a lower rack;

an upper feeding motor (17) is arranged on one side of the feeding wheel (9), an upper transmission arm (18) is fixedly arranged on the upper rack, and the upper feeding motor (17) drives the feeding wheel (9) to rotate through the upper transmission arm (18);

a lower feeding motor (19) is arranged on one side of the blanking wheel (10), the lower feeding motor (19) is fixedly arranged on the lower rack, and the lower feeding motor (19) drives the blanking wheel (10) to rotate through a lower transmission arm (20);

an upper belt conveying motor (11) is arranged on one side of the upper belt wheel (7), and the upper belt conveying motor (11) drives the upper belt wheel (7) to rotate through an upper transmission assembly (12);

a lower belt conveying motor (13) is arranged on one side of the lower belt wheel (8), and the lower belt conveying motor (13) drives the lower belt wheel (8) to rotate through a lower transmission assembly (14);

8. The hot air fusion machine of claim 1,

the feeding mechanism comprises a material guiding block (22), and the material guiding block (22) is divided into a connecting section and a material guiding section;

the connecting section is suitable for fixedly connecting the material guide blocks (22);

9. The hot air fusion machine of claim 8,

an auxiliary guide block (23) is fixedly arranged on the feeding side of the guide block (22);

the auxiliary guide block (23) is provided with a V-shaped guide hole which is suitable for guiding the edge wrapping belt into a V shape and outputting the V-shaped guide hole.

10. The hot air fusion machine of claim 8,

the feeding mechanism further comprises a tape releasing disc (25) suitable for placing the rolled edge wrapping tape;

a limiting column (26) is vertically arranged at the center of the unwinding disc (25), and the coiled edge wrapping band is sleeved on the limiting column (26) and is suitable for limiting the unwinding of the coiled edge wrapping band to be discharged out of the unwinding disc (25);

one side of the unwinding disc (25) is provided with a tensioning assembly (27) which is suitable for being matched with a limiting column (26) to tension a coiled edge wrapping belt;

one side of the unwinding disc (25) is vertically provided with a guide post (28) suitable for guiding the traction edge wrapping belt.

11. The hot air fusion machine of claim 1,

the material guide device also comprises a rotary material guide mechanism, wherein the rotary material guide mechanism comprises an upper rotary column (29) and a lower rotary column (30) which can rotate horizontally;

the upper rotary column (29) and the lower rotary column (30) are suitable for relative movement so as to clamp the wiredrawing cloth;

the edge of the clamped wiredrawing cloth is fed at the inlet of the pressurizing mechanism, and the clamped wiredrawing cloth is driven to rotate by taking the upper rotating column (29) and the lower rotating column (30) as the circle centers, so that the pressurizing mechanism pressurizes, welds and conveys the right-angle semicircular edge of the clamped wiredrawing cloth.