CN111438415B - Wire feeding device and method thereof - Google Patents

Wire feeding device and method thereof Download PDF

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Publication number
CN111438415B
CN111438415B CN202010420085.4A CN202010420085A CN111438415B CN 111438415 B CN111438415 B CN 111438415B CN 202010420085 A CN202010420085 A CN 202010420085A CN 111438415 B CN111438415 B CN 111438415B
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China
Prior art keywords
wire feeding
solder
wire
splashing
wheel
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CN202010420085.4A
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CN111438415A (en
Inventor
龙伟民
李爱国
钟素娟
吕登峰
李涛
郭艳红
赵建昌
董显
李娟�
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Zhengzhou Research Institute of Mechanical Engineering Co Ltd
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Zhengzhou Research Institute of Mechanical Engineering Co Ltd
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Publication of CN111438415A publication Critical patent/CN111438415A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/06Solder feeding devices; Solder melting pans
    • B23K3/0607Solder feeding devices
    • B23K3/063Solder feeding devices for wire feeding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)

Abstract

A wire feeding device and a method thereof, which relate to the field of brazing materials; the wire feeding equipment comprises a wire feeding mechanism shell, a wire feeding device, a heating device and an anti-splashing preheating piece; the wire feeding device and the heating device are respectively connected with the wire feeding mechanism shell; the front end of the wire feeding device is sleeved with the anti-splashing preheating piece; the wire feeder is used for accommodating and pushing the solder to move towards the head end of the wire feeder; the heating head of the heating device is arranged corresponding to the head end of the anti-splashing preheating piece, and the heating head of the heating device is used for heating the welding flux extending out of the anti-splashing preheating piece. The semiautomatic wire feeding method adopts wire feeding equipment. The invention aims to provide wire feeding equipment and a wire feeding method, which are used for solving the technical problems that in the prior art, an operator directly contacts flux-cored solder to cause easy scratching and the flux-cored solder is easy to splash during welding to a certain extent.

Description

Wire feeding device and method thereof
Technical Field
The invention relates to the field of brazing materials, in particular to wire feeding equipment and a method thereof.
Background
The silver solder has moderate melting point, good welding manufacturability, good strength, toughness, electrical conductivity, thermal conductivity and corrosion resistance, and is the hard solder with the widest application.
The traditional brazing process uses wire or strip silver solder to adhere brazing flux, or coats the brazing flux on a workpiece in advance before heating, the brazing flux consumption cannot be ensured, and welding defects are easy to occur, and the reworking, repairing and even scrapping are caused accordingly, so that the waste of silver solder and raw materials is caused, and the manufacturing cost is increased. In addition, the process of soldering flux adhesion or pre-coating flux increases one pre-soldering operation, increases working procedures and operation time, and increases a variable in the soldering process, thereby affecting consistency of soldering products and stability of quality. The brazing process is complex, the production efficiency is low, the cost is high, the dosage of the brazing flux is not easy to accurately control, the phenomenon of excessive or uneven brazing flux addition often occurs, a great amount of brazing flux is wasted, brazing flux residues on the surface of a welded workpiece are difficult to clean, and the joint is easy to corrode; in addition, the welding quality of the joint is mostly dependent on the level of operators, and defects are easily generated.
With the increasing control of brazing cost in modern manufacturing industry (shown as automatic welding gradually replaces manual welding with increased labor cost and accurate control of silver solder consumption), and the increasing attention of the outside to enterprise environmental responsibility, the flux-cored silver solder is generated under the industrial upgrading requirement.
The flux-cored silver solder is prepared by coating a certain proportion of powder soldering flux with strip-shaped silver solder, and has the following advantages compared with the traditional solid solder: the flux-cored silver solder is provided with the soldering flux, and the procedures of adding the soldering flux are reduced during soldering, so that the flux-cored silver solder has the advantages of high soldering efficiency, flexible component adjustment, energy saving, material saving, less flux consumption, less pollution, attractive weld formation and the like.
The flux-cored silver solder is widely applied in the market, a welding operator holds the flux-cored silver solder by hand, the flux is easy to scratch, the flux is filled in the flux tube, when the flux-cored silver solder is heated, the low-melting-point components of the flux are decomposed, melted and react with each other, but due to the structural specificity of the flux-cored silver solder (in order to prevent the flux from absorbing moisture, the lap joint gap of the flux tube is relatively tight), a splashing phenomenon exists in the welding process, and particularly, the middle part of the decomposed or melted flux components expand in volume and splash out from the end part of the flux. The flux-cored silver solder core brazing flux consists of borax (Na2B4O7.10H2O), boric acid (H3 BO 3), potassium fluoride (KF), potassium fluoborate (KBF 4), potassium fluohydride (KHF 2) and the like, wherein the potassium fluoride (KF) absorbs moisture and generates water vapor to expand when heated; the borax (Na 2B4O 7.10H2O) evaporates crystal water when heated to 200 ℃ or above, and the borax boils violently when the crystal water evaporates, and the reaction is as follows: na2B4O7.10H2O→Na2B4O7+10H2O; potassium fluoroborate (KBF 4) hydrolyzes rapidly due to the action of water vapor and produces white fumes; the H3BO3 (boric acid) is decomposed into boric anhydride and water vapor by heating, and the chemical reaction is as follows: h3BO3 (boric acid) →b2o3 (boric anhydride) +h2o (water); potassium bifluoride (KHF 2) is decomposed into potassium fluoride and hydrogen fluoride by heating to about 300 ℃, and the generated Hydrogen Fluoride (HF) gas expands in volume, and the chemical reaction is as follows: KHF2 (potassium fluorohydride) →kf (KF) +hf. The splashed soldering flux not only damages the health of operators, but also the soldering flux residues splashed on the surface of the workpiece after welding are difficult to clean and corrode the joint.
Disclosure of Invention
The invention aims to provide wire feeding equipment so as to solve the technical problems that in the prior art, an operator directly contacts flux-cored solder to cause scratch and the flux-cored solder is easy to splash during welding to a certain extent.
The invention further aims to provide a semi-automatic wire feeding method, which solves the technical problems that in the prior art, an operator directly contacts flux-cored solder to cause scratch and the flux-cored solder is easy to splash during welding to a certain extent.
In order to achieve the above object, the present invention provides the following technical solutions:
a wire feeding device comprises a wire feeding mechanism shell, a wire feeding device, a heating device and an anti-splashing preheating piece; the wire feeding device and the heating device are respectively connected with the wire feeding mechanism shell; the front end of the wire feeding device is sleeved with the anti-splashing preheating piece;
the wire feeder is used for accommodating and pushing the solder to move towards the head end of the wire feeder; the heating head of the heating device is arranged corresponding to the head end of the anti-splashing preheating piece, and the heating head of the heating device is used for heating the welding flux extending out of the anti-splashing preheating piece.
In any of the above technical solutions, optionally, the anti-splashing preheating piece includes an anti-splashing preheating pipe portion and an anti-splashing preheating fin;
the anti-splashing preheating pipe part is sleeved at the head end of the wire feeding device;
the anti-splashing preheating fin is fixed on the periphery of the anti-splashing preheating pipe part.
In any of the above technical solutions, optionally, a head end of the anti-splash preheating element is cone-shaped;
and/or the splash-proof preheating piece is made of copper or silver.
In any of the foregoing solutions, optionally, the heating device includes the heating head and an air intake assembly; the air inlet assembly is arranged in the wire feeding mechanism shell, the air inlet pipe of the air inlet assembly extends out of the tail end of the wire feeding mechanism shell, and the air outlet end of the air inlet assembly extends out of the head end of the wire feeding mechanism shell and is communicated with the heating head.
In any of the above aspects, optionally, the air intake assembly includes an air intake cavity disposed within the wire feeder housing; the air inlet cavity is provided with one or more air inlet pipes;
and/or an air inlet regulating valve is arranged on the air inlet component; the air inlet regulating valve is arranged in the wire feeding mechanism shell, and a regulating button of the air inlet regulating valve extends out of the wire feeding mechanism shell; the heating head is provided with a temperature sensor.
In any of the above technical solutions, optionally, the wire feeding device includes a wire feeding wheel, a wire feeding wrench, a pinch roller, a solder feeding pipe, and a solder discharging pipe;
the wire feeding wheel and the pressing wheel are rotatably arranged inside the wire feeding mechanism shell, and a conveying gap for conveying welding flux is formed between the wire feeding wheel and the pressing wheel;
the axis of the solder feeding pipe is coincident with the axis of the solder discharging pipe, and the axis of the solder feeding pipe passes through the conveying gap; a material pipe gap corresponding to the conveying gap is arranged between the tail end of the solder feeding pipe and the head end of the solder discharging pipe; the tail end of the solder discharging pipe extends out of the wire feeding mechanism shell and is sleeved with the anti-splashing preheating piece;
the wire feeding trigger is connected with the wire feeding wheel, and the wire feeding trigger can drive the wire feeding wheel to push the welding flux to move towards the head end of the wire feeding device.
In any of the above technical solutions, optionally, an elastic member for resetting the wire feeding trigger is disposed between the wire feeding trigger and the wire feeding wheel;
the head end of the solder feeding pipe and the head end of the solder discharging pipe are funnel-shaped;
the wire feeding mechanism shell is provided with a unidirectional locking device for unidirectional rotation of the wire feeding wheel;
the pinch roller can move to change the distance between the wire feeding wheel and the pinch roller;
the periphery of the wire feeding wheel and the periphery of the pressing wheel are provided with teeth.
In any of the above solutions, optionally, a hook is disposed outside the wire feeder housing.
A semi-automatic wire feeding method adopts the wire feeding equipment; the method includes the steps of,
solder is arranged in the wire feeding device;
the wire feeder pushes the solder to move towards the head end of the wire feeder;
when the solder extends out of the anti-splashing preheating piece to be 1cm-3cm in length, the heating head of the heating device heats the solder.
In any of the above technical solutions, optionally, the wire feeding device includes a wire feeding wheel, a wire feeding wrench, a pinch roller, a solder feeding pipe, and a solder discharging pipe; the wire feeding wheel and the compression wheel are arranged inside the wire feeding mechanism shell; the tail end of the solder discharging pipe extends out of the wire feeding mechanism shell and is sleeved with the anti-splashing preheating piece;
step "solder is disposed within the wire feeder; the wire feeder pushing the solder toward a head end of the wire feeder "comprising:
the solder sequentially passes through the solder feeding pipe, the wire feeding wheel, the solder discharging pipe and the anti-splashing preheating piece;
the wire feeding trigger is manually shifted, and the wire feeding trigger drives the wire feeding wheel to rotate so that the wire feeding wheel and the pressing wheel drive the welding flux to pass through and extend out of the anti-splashing preheating piece.
The beneficial effects of the invention are mainly as follows:
according to the wire feeding equipment and the method thereof, the wire feeding device pushes the welding flux to move towards the head end of the wire feeding device, so that the heating head of the heating device heats the welding flux extending out of the anti-splashing preheating piece, and the anti-splashing preheating piece is sleeved at the head end of the wire feeding device. After the head end of the anti-splashing preheating piece absorbs heat, the heat is transferred to the middle part or the rear part of the solder to preheat the solder, so that the problem of splashing of the solder caused by the concentration of heated ends of the solder in the prior art can be avoided or reduced, the moisture in the solder can be dried, and the problem of splashing of the solder caused by expansion of water vapor generated by heating of the solder is greatly reduced; the wire feeding equipment can avoid the direct contact of the operator hand with the flux core solder and other solders, and avoid the risk of scratch of the operator hand.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a half cross-sectional view of a wire feeding apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wire feeding device according to an embodiment of the present invention;
FIG. 3 is a left side view of the wire feeding apparatus shown in FIG. 2;
fig. 4 is a cross-sectional view of the wire feeder apparatus shown in fig. 2 in the A-A direction.
Icon: 1-a wire feeding wheel; 2-wire feeding pulling and buckling; 3-an elastic member; 4-a solder feed tube; 5-solder; 6-acetylene inlet pipe; 7-an oxygen inlet pipe; 8-a wire feeder housing; 9-a pinch roller; 10-hooking; 11-heating means; 111-heating head; 112-an air intake assembly; 113-an air inlet cavity; 114-an air inlet pipe; 12-a splash-proof preheating piece; 13-a solder discharge tube; 14-one-way bearing.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Examples
Referring to fig. 1-4, the present embodiment provides a wire feeding apparatus, fig. 1 is a half cross-sectional view of the wire feeding apparatus provided in the present embodiment, and fig. 2 is a schematic structural diagram of the wire feeding apparatus provided in the present embodiment, where the projection directions of fig. 1 and fig. 2 are the same. Fig. 3 is a left side view of the wire feeding device shown in fig. 2, and fig. 4 is a cross-sectional view of the wire feeding device shown in fig. 2, in which the projection directions of fig. 3 and 4 are the same, for more clear display of the structure.
Referring to fig. 1-4, the wire feeder apparatus is used to deliver solder for soldering, and in particular, to deliver solder for soldering in a semi-automated manner. Optionally, the wire feeding device is a special mechanism for continuously adjusting any length of solder such as flux-cored solder and the like to semi-automatically feed wires. The solder is, for example, flux-cored silver solder, flux-cored solder using BAg30CuZnSn, BAg30CuZn, BAg20CuZnSn or BAg20CuZn, or other solder.
The wire feeding equipment comprises a wire feeding mechanism shell 8, a wire feeding device, a heating device 11 and an anti-splashing preheating piece 12; the wire feeding device and the heating device 11 are respectively connected with the wire feeding mechanism shell 8; the front end of the wire feeder is sleeved with an anti-splashing preheating piece 12.
The wire feeder is configured to receive and push the solder 5 toward the head end of the wire feeder, i.e., the solder 5 is mounted within the wire feeder, and the wire feeder is configured to push the solder 5 toward the head end of the wire feeder. The heating head 111 of the heating device 11 is disposed corresponding to the head end of the anti-splash preheating 12, and the heating head 111 of the heating device 11 is used for heating the solder 5 extending out of the anti-splash preheating 12. Optionally, the solder 5 extends from the splash guard 12 to a length of 1cm-3cm; for example, the solder 5 extends out of the splash guard 12 by a length of 1cm, 1.5cm, 2cm, 3cm, or the like.
In the wire feeding device of the present embodiment, the wire feeding device pushes the solder 5 to move toward the head end of the wire feeding device, so that the heating head 111 of the heating device 11 heats the solder 5 extending out of the anti-splashing preheating piece 12, where the anti-splashing preheating piece 12 is sleeved on the head end of the wire feeding device. After the head end of the anti-splashing preheating piece 12 absorbs heat, the heat is transferred to the middle part or the rear part of the solder 5 to preheat the solder 5, so that the problem of splashing of the solder caused by the concentration of heated ends of the solder 5 in the prior art can be avoided or reduced, the moisture in the solder 5 can be dried, and the problem of splashing of the solder 5 caused by expansion of water vapor generated by heating of the solder is greatly reduced; the wire feeding equipment can avoid the direct contact of the operator hand with the flux-cored solder and other solders 5, and avoid the risk of scratching the operator hand.
The wire feeding device in this embodiment performs soldering, and the solder 5 passes through the anti-splashing preheating piece 12, for example, the solder 5 is exposed for 1cm-3cm, so that only the end part of the solder 5 is heated, and the splashing of the solder is greatly reduced. The wire feeding equipment greatly reduces the splashing of the welding flux 5, has important environmental protection significance, and can also avoid or reduce the problems that brazing flux residues splashed on the surface of a workpiece after welding are difficult to clean and the joint is easy to corrode. The welding is implemented by adopting the wire feeding equipment, so that the randomness and experience of manual wire feeding can be reduced, the uniformity of each welding spot is ensured, and the quality stability of the product is improved to a certain extent.
Referring to fig. 1-4, in an alternative version of the present embodiment, the anti-splash preheating member 12 includes an anti-splash preheating tube portion (not shown) and an anti-splash preheating fin (not shown).
The anti-splashing preheating pipe part is sleeved at the head end of the wire feeding device.
The anti-splashing preheating fin is fixed on the periphery of the anti-splashing preheating pipe part. When the heating device 11 heats the solder 5, the head end of the anti-splashing preheating piece 12 absorbs a large amount of heat, and the temperature of the anti-splashing preheating pipe part during welding can be well reduced through the anti-splashing preheating fin, so that the heat dissipation performance of the anti-splashing preheating piece 12 is improved.
Referring to fig. 1 and 2, in an alternative of the present embodiment, the front end of the splash guard 12 is tapered so that the splash guard 12 cooperates with the heating head 111 of the heating device 11. Optionally, the head end of the anti-splashing preheating pipe part is cone-shaped.
Optionally, the anti-splashing preheating piece 12 is made of a material with good thermal conductivity so as to improve the heat dissipation performance of the anti-splashing preheating piece 12; optionally, the material of the splash-proof preheating piece 12 is copper or silver, or other material with good thermal conductivity.
Referring to fig. 1 and 2, in an alternative of the present embodiment, a heating device 11 includes a heating head 111 and an air intake assembly 112; the air inlet assembly 112 is arranged in the wire feeding mechanism housing 8, and an air inlet pipe of the air inlet assembly 112 extends out of the tail end of the wire feeding mechanism housing 8, and an air outlet end of the air inlet assembly 112 extends out of the head end of the wire feeding mechanism housing 8 and is communicated with the heating head 111.
Referring to fig. 1 and 2, optionally, the air intake assembly 112 includes an air intake cavity 113 disposed within the wire feeder housing 8; the air inlet chamber 113 is provided with one or more air inlet pipes 114; the gas can be buffered or mixed by the gas inlet cavity 113, which is beneficial to providing the heating head 111 with the gas with stable pressure and uniform mixing. For example, the intake chamber 113 is provided with two intake pipes 114, one of the intake pipes 114 being the acetylene intake pipe 6 and the other intake pipe 114 being the oxygen intake pipe 7.
Optionally, an intake air regulating valve is disposed on the intake assembly 112; through the air intake regulating valve, the flow of the fuel gas supplied to the heating head 111 is regulated, so that the welding temperature can be controlled to a certain extent, and the product quality stability is improved to a certain extent.
Alternatively, the air inlet regulating valve is arranged in the wire feeding mechanism shell 8, and the regulating button of the air inlet regulating valve extends out of the wire feeding mechanism shell 8; the flow rate of the intake air adjusting valve and thus the flow rate of the fuel gas supplied to the heating head 111 is adjusted by the adjusting knob.
Optionally, the heating head 111 is provided with a temperature sensor. The temperature of the heating head 111 is monitored by a temperature sensor.
Optionally, the air inlet regulating valve and the temperature sensor are electrically connected with a control device of the wire feeding device.
Referring to fig. 1-4, in an alternative to this embodiment, the wire feeder includes a wire feed wheel 1, a wire feed trigger 2, a pinch wheel 9, a solder feed tube 4, and a solder discharge tube 13.
The wire feeding wheel 1 and the pinch roller 9 are rotatably arranged inside the wire feeding mechanism shell 8, and a conveying gap for conveying the solder 5 is arranged between the wire feeding wheel 1 and the pinch roller 9. The solder 5 is inserted into the feeding gap, so that the wire feeding wheel 1 and the pinch roller 9 are engaged with each other with the solder 5.
The axis of the solder feeding pipe 4 coincides with the axis of the solder discharging pipe 13, the axis of the solder feeding pipe 4 corresponds to the conveying gap, and the axis of the solder feeding pipe 4 passes through the conveying gap; a material pipe gap corresponding to the conveying gap is arranged between the tail end of the solder feeding pipe 4 and the head end of the solder discharging pipe 13; the tail end of the solder discharging pipe 13 extends out of the wire feeding mechanism shell 8 and is sleeved with an anti-splashing preheating piece 12.
The wire feeding trigger 2 is connected with the wire feeding wheel 1, and the wire feeding trigger 2 can drive the wire feeding wheel 1 to push the welding flux 5 to move towards the head end of the wire feeding device. The wire feeding trigger 2 is manually pulled to drive the wire feeding wheel 1 to rotate, so that the welding flux 5 moves towards the head end of the wire feeding device under the drive of the wire feeding wheel 1 and the pressing wheel 9, and penetrates through and stretches out of the splash-proof preheating piece 12.
Optionally, an elastic piece 3 for resetting the wire feeding trigger 2 is arranged between the wire feeding trigger 2 and the wire feeding wheel 1; alternatively, the elastic member 3 is a compression spring, a tension spring, or the like.
Optionally, the front end of the solder feeding pipe 4 and the front end of the solder discharging pipe 13 are horn-shaped or funnel-shaped; so that the solder 5 enters the inside of the solder feed tube 4 and the solder discharge tube 13.
Optionally, a unidirectional locking device for unidirectional rotation of the wire feeding wheel 1 is arranged on the wire feeding mechanism shell 8; referring to fig. 4, when the unidirectional locking device is locked, the wire feeding wheel 1 rotates in one direction, and when the unidirectional locking device is unlocked, the wire feeding wheel 1 rotates in both directions. For example, the unidirectional locking device comprises a unidirectional bearing 14 and a locking piece, and the wire feeding wheel 1 is connected with the wire feeding mechanism shell 8 through the unidirectional bearing 14; when the locking piece locks the unidirectional bearing 14, the unidirectional bearing 14 does not rotate, and the wire feeding wheel 1 rotates unidirectionally around the shaft of the unidirectional bearing 14; when the locking piece opens the one-way bearing 14, the one-way bearing 14 rotates bidirectionally, and the wire feeding wheel 1 rotates bidirectionally along with the one-way bearing 14. For another example, a wire feeding fixed shaft is fixedly arranged on the wire feeding mechanism shell 8, the locking piece is a locking nut, the unidirectional bearing 14 is sleeved on the wire feeding fixed shaft, the locking nut is in threaded connection with the wire feeding fixed shaft, the unidirectional bearing 14 is positioned between the locking nut and the wire feeding mechanism shell 8, when the locking nut locks the unidirectional bearing 14, the unidirectional bearing 14 does not rotate, and the wire feeding wheel 1 rotates unidirectionally around the shaft of the unidirectional bearing 14; when the lock nut is loosened, the one-way bearing 14 rotates bidirectionally, and the wire feeding wheel 1 rotates bidirectionally along with the one-way bearing 14.
Optionally, pinch roller 9 is movable to vary the distance between wire feed wheel 1 and pinch roller 9; i.e. the pinch roller 9 can be moved to change the width of the conveying gap. The pressing wheel 9 can move to change the distance between the wire feeding wheel 1 and the pressing wheel 9, so that the wire feeding device can adapt to solders with different diameters, the application range of the wire feeding device is enlarged, and the practicability of the wire feeding device is improved. For example, the wire feeder housing 8 is provided with a pinch chute, the pinch roller 9 is connected with a pinch knob extending out of the pinch chute of the wire feeder housing 8, the pinch knob can lock the pinch roller 9 to secure the pinch roller 9 within the wire feeder housing 8; when the compression knob is loosened, the compression knob and the compression wheel 9 synchronously slide along the compression chute so as to change the distance between the wire feeding wheel 1 and the compression wheel 9.
Optionally, the wire feed wheel 1 and the pinch wheel 9 each have teeth on their outer circumference. Friction force between the wire feeding wheel 1 and the pressing wheel 9 and the welding flux 5 is increased through the teeth, so that the welding flux 5 is pushed to move towards the head end of the wire feeding device conveniently.
Referring to fig. 1-4, in an alternative embodiment, a hook 10 is provided on the outside of the wire feeder housing 8 to facilitate hanging the wire feeder on a rack after use.
The embodiment also provides a semi-automatic wire feeding method, which adopts the wire feeding equipment; the method includes the steps of,
solder 5 is disposed within the wire feeder. That is, the solder 5 passes through the solder feed pipe 4, the wire feed wheel 1, the solder discharge pipe 13, and the splash preventing preheating 12 in this order.
The wire feeder pushes the solder 5 towards the head end of the wire feeder.
When the solder 5 extends out of the splash-proof preheating piece 12 to a length of 1cm-3cm, the heating head 111 of the heating device 11 heats the solder 5. For example, the wire feeding trigger 2 is manually pushed, and the wire feeding trigger 2 drives the wire feeding wheel 1 to rotate, so that the wire feeding wheel 1 and the pressing wheel 9 drive the welding flux 5 to pass through and extend out of the splash-proof preheating piece 12. The heating device 11 heats the solder 5 when the solder 5 extends out of the splash prevention preheating 12 by a length of 1cm-3 cm.
The semi-automatic wire feeding method provided by the embodiment comprises the wire feeding device, and the technical features of the disclosed wire feeding device are also applicable to the semi-automatic wire feeding method, and are not repeated. The semiautomatic wire feeding method in this embodiment has the advantages of the wire feeding device described above, and the advantages of the wire feeding device disclosed above are not repeated here.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The wire feeding equipment is used for conveying welding flux, and the welding flux is flux-cored welding flux and is characterized by comprising a wire feeding mechanism shell, a wire feeding device, a heating device and an anti-splashing preheating piece; the wire feeding device and the heating device are respectively connected with the wire feeding mechanism shell; the front end of the wire feeding device is sleeved with the anti-splashing preheating piece;
the wire feeder is used for accommodating and pushing the solder to move towards the head end of the wire feeder; the heating head of the heating device is arranged corresponding to the head end of the anti-splashing preheating piece, and is used for heating the welding flux extending out of the anti-splashing preheating piece;
the anti-splashing preheating piece comprises an anti-splashing preheating pipe part and an anti-splashing preheating fin;
the anti-splashing preheating pipe part is sleeved at the head end of the wire feeding device;
the anti-splashing preheating fin is fixed on the periphery of the anti-splashing preheating pipe part.
2. The wire feeding apparatus of claim 1, wherein a head end of the splash guard is cone-shaped;
and/or the splash-proof preheating piece is made of copper or silver.
3. Wire feeding apparatus according to claim 1 or 2, wherein the heating device comprises the heating head and an air intake assembly; the air inlet assembly is arranged in the wire feeding mechanism shell, the air inlet pipe of the air inlet assembly extends out of the tail end of the wire feeding mechanism shell, and the air outlet end of the air inlet assembly extends out of the head end of the wire feeding mechanism shell and is communicated with the heating head.
4. The wire feeder apparatus of claim 3, wherein the air intake assembly comprises an air intake cavity disposed within the wire feeder housing; the air inlet cavity is provided with one or more air inlet pipes;
and/or an air inlet regulating valve is arranged on the air inlet component; the air inlet regulating valve is arranged in the wire feeding mechanism shell, and a regulating button of the air inlet regulating valve extends out of the wire feeding mechanism shell; the heating head is provided with a temperature sensor.
5. The wire feeding apparatus of claim 1 or 2, wherein the wire feeding device comprises a wire feeding wheel, a wire feeding trigger, a pinch wheel, a solder feed tube, and a solder discharge tube;
the wire feeding wheel and the pressing wheel are rotatably arranged inside the wire feeding mechanism shell, and a conveying gap for conveying welding flux is formed between the wire feeding wheel and the pressing wheel;
the axis of the solder feeding pipe is coincident with the axis of the solder discharging pipe, and the axis of the solder feeding pipe passes through the conveying gap; a material pipe gap corresponding to the conveying gap is arranged between the tail end of the solder feeding pipe and the head end of the solder discharging pipe; the tail end of the solder discharging pipe extends out of the wire feeding mechanism shell and is sleeved with the anti-splashing preheating piece;
the wire feeding trigger is connected with the wire feeding wheel, and the wire feeding trigger can drive the wire feeding wheel to push the welding flux to move towards the head end of the wire feeding device.
6. The wire feeding apparatus according to claim 5, wherein an elastic member for resetting the wire feeding trigger is provided between the wire feeding trigger and the wire feeding wheel;
the head end of the solder feeding pipe and the head end of the solder discharging pipe are funnel-shaped;
the wire feeding mechanism shell is provided with a unidirectional locking device for unidirectional rotation of the wire feeding wheel;
the pinch roller can move to change the distance between the wire feeding wheel and the pinch roller;
the periphery of the wire feeding wheel and the periphery of the pressing wheel are provided with teeth.
7. Wire feeding apparatus according to claim 1 or 2, wherein the wire feeder housing is provided externally with hooks.
8. A semiautomatic wire feeding method, characterized in that a wire feeding device according to any one of claims 1-7 is used; the method includes the steps of,
solder is arranged in the wire feeding device;
the wire feeder pushes the solder to move towards the head end of the wire feeder;
when the solder extends out of the anti-splashing preheating piece to be 1cm-3cm in length, the heating head of the heating device heats the solder.
9. The semiautomatic wire feeding method according to claim 8, wherein the wire feeding device comprises a wire feeding wheel, a wire feeding wrench, a pinch wheel, a solder feeding pipe, and a solder discharging pipe; the wire feeding wheel and the compression wheel are arranged inside the wire feeding mechanism shell; the tail end of the solder discharging pipe extends out of the wire feeding mechanism shell and is sleeved with the anti-splashing preheating piece;
step "solder is disposed within the wire feeder; the wire feeder pushing the solder toward a head end of the wire feeder "comprising:
the solder sequentially passes through the solder feeding pipe, the wire feeding wheel, the solder discharging pipe and the anti-splashing preheating piece;
the wire feeding trigger is manually shifted, and the wire feeding trigger drives the wire feeding wheel to rotate so that the wire feeding wheel and the pressing wheel drive the welding flux to pass through and extend out of the anti-splashing preheating piece.
CN202010420085.4A 2020-05-18 2020-05-18 Wire feeding device and method thereof Active CN111438415B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2107966U (en) * 1991-06-29 1992-06-24 上海工程技术大学 Multi-station soldering machine
JPH07136759A (en) * 1993-11-17 1995-05-30 Shinwa Shokai:Kk Gas brazing device
CN1443622A (en) * 2002-03-08 2003-09-24 Esec贸易公司 Method and device for distributing welding flux on base
CN105397231A (en) * 2015-11-26 2016-03-16 吴水鱼 Soldering tin preheating principle and application
CN109676218A (en) * 2019-02-13 2019-04-26 福尼斯(南京)表面工程技术有限公司 A kind of weld uses portable hand-held formula automatic wire feeding device and its application method
CN208853895U (en) * 2018-09-06 2019-05-14 莆田市城厢区福瑞科技电子有限公司 The tin soldering machine that a kind of pair of tin silk is preheated
CN212443638U (en) * 2020-05-18 2021-02-02 郑州机械研究所有限公司 Wire feeding equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2107966U (en) * 1991-06-29 1992-06-24 上海工程技术大学 Multi-station soldering machine
JPH07136759A (en) * 1993-11-17 1995-05-30 Shinwa Shokai:Kk Gas brazing device
CN1443622A (en) * 2002-03-08 2003-09-24 Esec贸易公司 Method and device for distributing welding flux on base
CN105397231A (en) * 2015-11-26 2016-03-16 吴水鱼 Soldering tin preheating principle and application
CN208853895U (en) * 2018-09-06 2019-05-14 莆田市城厢区福瑞科技电子有限公司 The tin soldering machine that a kind of pair of tin silk is preheated
CN109676218A (en) * 2019-02-13 2019-04-26 福尼斯(南京)表面工程技术有限公司 A kind of weld uses portable hand-held formula automatic wire feeding device and its application method
CN212443638U (en) * 2020-05-18 2021-02-02 郑州机械研究所有限公司 Wire feeding equipment

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