CN111958081A - Surface pretreatment equipment before brazing of heat exchanger parts - Google Patents
Surface pretreatment equipment before brazing of heat exchanger parts Download PDFInfo
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- CN111958081A CN111958081A CN202010667000.2A CN202010667000A CN111958081A CN 111958081 A CN111958081 A CN 111958081A CN 202010667000 A CN202010667000 A CN 202010667000A CN 111958081 A CN111958081 A CN 111958081A
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- tank
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- screw rod
- heat exchanger
- spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention discloses surface pretreatment equipment before brazing of heat exchanger parts, which comprises a rack, a conveying device arranged on the rack, a PLC (programmable logic controller), a degreasing device, a dip-coating device, a spraying device, a curing device and a waste gas treatment device, wherein the degreasing device, the dip-coating device, the spraying device, the curing device and the waste gas treatment device are arranged on the rack; the combustor is efficient and energy-saving, the whole set of system is intelligently controlled by a PLC (programmable logic controller), programs are interlocked, and a human-computer interface is convenient to operate.
Description
Technical Field
The invention relates to a surface pretreatment device before brazing of heat exchanger parts.
Background
Before the brazing of evaporimeter collector liquid pipe, need carry out the preliminary treatment, the preliminary treatment generally includes that degrease, brazing flux dip in scribble or the spraying then carries out the stoving and handle, and current pretreatment equipment is including handling two kinds of equipment to plate class part and to the pipe class part, need be equipped with respectively degrease and stoving (solidification) device, has caused the waste of equipment, and the device of just dipping in scribbles has to dip in and scribbles inhomogeneously, and the structure is complicated, the higher scheduling problem of cost.
Disclosure of Invention
The invention aims to provide a surface pretreatment device before brazing of a heat exchanger part, which integrates two pretreatment modes of spraying and dipping.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a surface pretreatment equipment before brazing of heat exchanger part, its includes the frame, install in conveyor in the frame, the PLC controller, install in defatting device in the frame, dip in device, spraying device, solidification equipment and exhaust-gas treatment device, dip in and scribble device processing plate-like part, the spraying device is used for handling the tubulose part, dip in the device include the base, locate the lift portion on the base, install in the upset portion on the lift portion, the lift portion including be fixed in elevator motor on the mount pad, with the screw rod mechanism that elevator motor looks transmission is connected, screw rod mechanism include the lead screw mount pad, rotate connect in screw rod on the lead screw mount pad, with screw rod threaded connection just follows the gliding drive nut of screw rod and connect in upset portion with deflector between the drive nut, the screw rod mounting seat is U-shaped and comprises two transverse plates arranged in parallel and a longitudinal plate arranged between the two transverse plates, the upper end of the guide plate is fixed on the driving nut, and the side surface of the guide plate facing the screw rod is attached to the longitudinal plate between the driving nut and the turnover part.
In another optimized scheme, the turning part comprises a turning motor arranged at the lower end of the guide plate, a turning arm fixedly connected with an output shaft of the turning motor and a workpiece fixture arranged on the turning arm, and the screw is vertical to the axis of the output shaft.
Another kind of optimization scheme, the degreasing device include the degreaser and install in combustor on the degreaser, solidification equipment include the stoving case and install in combustor on the stoving case, the combustor includes the hot box, locates combustion chamber and fan wheel in the hot box, install in on the lateral wall in the hot box and with combustion assembly that the combustion chamber is linked together, install in on the lateral wall in the hot box and with fan wheel looks transmission connection's circulating motor, heat delivery outlet, exhaust emission and grease sunction inlet have been seted up on the hot box, the abandonment discharge outlet with exhaust treatment device is linked together.
According to another optimized scheme, the spraying device comprises a spraying box and a rotating device, the rotating device comprises a conveying chain, and the conveying chain comprises inner chain plates and outer chain plates which are sequentially arranged at intervals and a connecting shaft which is used for rotationally connecting the inner chain plates and the outer chain plates;
the rotary part comprises an installation frame, a plurality of inner rollers installed on the installation frame and a rotary driving belt annularly arranged on the inner rollers, the axes of the inner rollers are all parallel, and the inner rollers are all positioned on the inner side of the rotary driving belt;
the rotary driving belt is positioned above the conveying chain, and the side surface of the rotary driving belt facing the conveying chain is used as a working surface of a rotary part.
According to another optimization scheme, the pretreatment equipment further comprises a pre-spraying brazing flux recovery device, the pre-spraying brazing flux recovery device sequentially comprises a working tank, a recovery pump, a storage tank, a feeding pump, a filter and a recovery tank from upstream to downstream, the working tank, the recovery pump, the storage tank, the feeding pump, the filter and the recovery tank are connected through pipelines, the recovery tank is located above the working tank, a discharge port of the recovery tank is connected into the working tank, and a stirrer is arranged in the storage tank.
The invention has the beneficial effects that: the whole device has a compact structure, a reasonable design, a one-machine double-station structure and consistent production beats; the combustor is efficient and energy-saving; the dipped brazing flux is quickly cured by utilizing the waste heat of the pre-spraying degreasing area, so that sagging is avoided; the waste gas treatment device is a four-stage filtration system, so that the environment-friendly emission up to the standard is realized; the brazing flux is recycled, so that the cost is saved; the manipulator intelligently senses and picks up the workpiece, and realizes the actions of part grabbing, up-down, left-right, 90-degree rotation, 180-degree rotation and dipping; the dipping lengths are uniform; the coating and the dip brazing dosage can be intelligently controlled; the whole set of system is intelligently controlled by a PLC (programmable logic controller), programs are interlocked, and a human-computer interface is convenient to operate.
Drawings
FIG. 1 is a schematic view of the structure of a pretreatment apparatus of the present invention;
FIG. 2 is a schematic view of the construction of a dip-coating apparatus of the present invention;
FIG. 3 is a schematic view of the structure of the burner of the present invention;
FIG. 4 is a schematic structural view of a rotary apparatus of the present invention;
FIG. 5 is a schematic structural view of the recycling apparatus of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, the surface pretreatment apparatus before brazing of heat exchanger parts comprises a frame 1, a conveying device 2 mounted on the frame, a PLC controller 3, a degreasing device 4, a dipping device 5, a spraying device 600, a curing device 7, an exhaust gas treatment device 8 and a pre-sprayed flux recovery device 9 mounted on the frame. The frame 1, the conveying device 2 (only in a chain conveying manner) mounted on the frame, and the PLC controller 3 are prior art, and are not described herein again.
As shown in fig. 2, the dip coating device 5 treats a plate-like part, and the dip coating device 5 includes a base 51, an elevating unit 52 provided on the base 51, and a turning unit 53 attached to the elevating unit 52.
The lifting part 52 comprises a lifting motor 521 fixed on the mounting seat, and a screw rod mechanism 522 in transmission connection with the lifting motor 521, the screw rod mechanism 522 comprises a screw rod mounting seat 523, a screw rod 524 rotationally connected to the screw rod mounting seat 523, a driving nut 525 in threaded connection with the screw rod 524 and sliding along the screw rod 524, and a guide plate 526 connected between the turning part 53 and the driving nut 525, the screw rod mounting seat 523 is in a U shape and comprises two horizontal plates 527 arranged in parallel and a longitudinal plate 528 arranged between the two horizontal plates 527, the upper end of the guide plate 526 is fixed on the driving nut 525, and the side surface of the guide plate 526 facing the screw rod 524 is attached to the longitudinal plate 528 between the driving nut 525 and the turning part 53. The side of the vertical plate 528 that contacts the guide plate 526 is provided with a lubricant supply hole. The guide plate 526 can serve to connect the installation turning part 53, and at the same time, it cooperates with the longitudinal plate 528 to achieve a guiding function, thereby omitting an indispensable guide rod of the screw rod mechanism 522.
The turning part 53 includes a turning motor 531 mounted on the lower end of the guide plate 526, a turning arm 532 fixedly connected to the output shaft of the turning motor 531, and a workpiece fixture 533 mounted on the turning arm 532, and the screw 524 is perpendicular to the axis of the output shaft. The workpiece jigs 533 are sequentially and uniformly arranged along the axial direction of the turning arm 532.
As shown in fig. 3, the degreasing device 4 includes a degreasing tank 400 and a burner 401 mounted on the degreasing tank 400, the curing device includes a drying tank 402 and a burner 401 mounted on the drying tank 402, the burner 401 of the curing device 7 includes a heat insulation tank 41, an incineration chamber 42 and a fan impeller 43 arranged in the heat insulation tank 41, a combustion assembly 44 mounted on a side wall in the heat insulation tank 41 and communicated with the incineration chamber 42, and a circulation motor 45 mounted on a side wall in the heat insulation tank 41 and in transmission connection with the fan impeller 43, and the heat insulation tank 41 is provided with a heat output port 46, an exhaust gas discharge port 47, and a grease suction port 48. The heat output port 46, the exhaust gas discharge port 47, and the grease suction port 48 are provided with a heat output duct 461, an exhaust gas discharge duct 471, and a grease suction duct 481, respectively, and the exhaust gas discharge duct 471 and the grease suction duct 481 penetrate the heat insulation box 41 and communicate with the combustion chamber 42. The end of the incineration chamber 42 connected to the combustion assembly 44 is the right end, the other end is the left end, the fan impeller 43 is located on the left side of the left end of the incineration chamber 42, and the heat output port 46 is located below the fan impeller 43. The combustion assembly 44 includes a burner 49 communicating with the incineration chamber and a gas duct 410 connected to the burner 49. The projection of the exhaust gas discharge port 47 on the bottom surface of the heat insulating box 41 is located between the projection of the heat output port 46 and the grease suction port 48 on the bottom surface of the heat insulating box 41. Thermocouples are uniformly distributed in the heat insulation box to control the temperature. The number of the heat output ports 46 and the number of the grease suction ports 48 of the burners 401 of the degreasing device 4 and the burners 401 of the curing device 7 are different, and are not described herein.
As shown in fig. 4, the spraying device 600 is used for processing tubular parts and comprises a spraying box 60 and a rotating device 6, wherein the rotating device comprises a plurality of groups of conveying chains 61 and rotating parts 62, the rotating parts 62 are positioned between two adjacent conveying chains 61.
The conveying chain 61 comprises inner chain plates 611 and outer chain plates 612 which are arranged at intervals in sequence, and a connecting shaft 614 for rotatably connecting the inner chain plates 611 and the outer chain plates 612, wherein the outer chain plates 612 are provided with mounting positions 613, the mounting positions 613 are U-shaped or V-shaped grooves, and the mounting positions 613 of two opposite outer chain plates 612 form a station for placing the part 00.
The rotating portion 62 includes a mounting frame 621, and the mounting frame 621 includes a transverse frame 622, a longitudinal frame 623 perpendicular to the transverse frame 622, and tensioning frames 624 disposed on two sides of the longitudinal frame 623 and extending obliquely upward respectively. The rotating portion 62 further includes a plurality of inner rollers 625 mounted on the mounting frame 621, a rotating driving belt 626 looped around the inner rollers 625, a rotating driving motor (a conventional servo motor, which is not described herein) disposed on the mounting frame 621 for driving the rotating driving belt 626 to rotate and driving the driving roller 627 to rotate, and a tension roller 628 rotatably connected to the tension frame 624 and located outside the rotating driving belt 626, wherein the axes of the inner rollers 625 are parallel, the inner rollers 625 are located inside the rotating driving belt 626, the driving roller 627 is located inside the rotating driving belt 626 and has a rotation axis parallel to the rotation axis of the inner roller 625, and the outer peripheral surface of the tension roller 628 presses against the rotating driving belt 626. (ii) a
The rotary drive belt 626 is located above the conveyor chain 61, and its side facing the conveyor chain 61 serves as a working surface for the rotary parts.
As shown in fig. 5, the pre-spraying flux recovery device 9 sequentially includes a working tank 91, a recovery pump 92, a storage tank 93, a feeding pump 94, a filter 95 and a recovery tank 96 from upstream to downstream, the recovery tank 96 is located above the working tank 91, a discharge port of the recovery tank 96 is connected to the working tank 91, and a stirrer 97 is arranged in the storage tank 93. The working grooves 91 are two, namely a first working groove 911 and a second working groove 912, the first working groove 911 and the second working groove 912 are respectively provided with a liquid level meter 906, the discharging pipes 903 of the first working groove 911 and the second working groove 912 are respectively provided with a flow valve 905, the two discharging pipes are connected with the storage barrel 93 through a first pipeline 904 after meeting, the first pipeline is sequentially provided with a proportional pressure regulating valve 98 and a pressure sensor 99 from the working groove 91 to the storage barrel 93, and the recovery pump 92 is connected to the downstream of the pressure sensor 99. A purified water pipeline 90 is connected between the recovery pump 92 and the storage vat 93, a first valve 901 is arranged on the purified water pipeline 90, and a second valve 902 is connected between the connection position of the purified water pipeline and the first pipeline 904 and the storage vat 93. The working tanks 91 are respectively provided with a liquid level gauge. The recovery pump 92 and the feeding pump 94 are diaphragm pumps, all parts are controlled cooperatively through a PLC (programmable logic controller), intelligent control is realized, the liquid level in the working tank is constant, the brazing flux cannot precipitate in the working tank, the concentration of the brazing flux is stable, and intelligent alarm and error report are realized.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (5)
1. A surface pretreatment device before brazing of heat exchanger parts is characterized in that: it includes the frame, install in conveyor in the frame, the PLC controller, install in defatting device in the frame, dip in and scribble device, spraying device, solidification equipment and exhaust treatment device, dip in and scribble the device and handle platelike part, the spraying device is used for handling the tubulose part, dip in and scribble the device and include the base, locate the lift portion on the base, install in the upset portion on the lift portion, the lift portion including be fixed in elevator motor on the mount pad, with the screw rod mechanism that elevator motor looks transmission is connected, screw rod mechanism include the lead screw mount pad, rotate connect in screw rod on the lead screw mount pad, with screw rod threaded connection just follows the gliding drive nut of screw rod and connect in upset portion with the deflector between the drive nut, the lead screw mount pad is U-shaped its diaphragm that includes two parallel arrangement and locates two longitudinal plates between the diaphragm, the upper end of the guide plate is fixed on the driving nut, and the side surface of the guide plate facing the screw rod is attached to the longitudinal plate between the driving nut and the turnover part.
2. The surface pretreatment apparatus for heat exchanger parts before brazing according to claim 1, characterized in that: the turning part comprises a turning motor arranged at the lower end of the guide plate, a turning arm fixedly connected with an output shaft of the turning motor and a workpiece fixture arranged on the turning arm, and the screw is perpendicular to the axis of the output shaft.
3. The surface pretreatment apparatus for heat exchanger parts before brazing according to claim 1, characterized in that: the degreasing device include the degreaser and install in combustor on the degreaser, solidification equipment include the stoving case and install in combustor on the stoving case, the combustor includes the hot box, locates combustion chamber and fan wheel in the hot box, install in on the lateral wall in the hot box and with combustion assembly that the combustion chamber is linked together, install in on the lateral wall in the hot box and with fan wheel looks drive connection's circulating motor, heat delivery outlet, exhaust emission and grease sunction inlet have been seted up on the hot box, the abandonment discharge outlet with exhaust-gas treatment device is linked together.
4. The surface pretreatment apparatus for heat exchanger parts before brazing according to claim 1, characterized in that: the spraying device comprises a spraying box and a rotating device, the rotating device comprises a conveying chain, and the conveying chain comprises inner chain plates and outer chain plates which are sequentially arranged at intervals and a connecting shaft for rotationally connecting the inner chain plates and the outer chain plates;
the rotary part comprises an installation frame, a plurality of inner rollers installed on the installation frame and a rotary driving belt annularly arranged on the inner rollers, the axes of the inner rollers are all parallel, and the inner rollers are all positioned on the inner side of the rotary driving belt;
the rotary driving belt is positioned above the conveying chain, and the side surface of the rotary driving belt facing the conveying chain is used as a working surface of a rotary part.
5. The surface pretreatment apparatus for heat exchanger parts before brazing according to claim 1, characterized in that: the pretreatment equipment further comprises a pre-spraying brazing flux recovery device, the pre-spraying brazing flux recovery device sequentially comprises a working tank, a recovery pump, a storage tank, a feeding pump, a filter and a recovery tank from upstream to downstream, the working tank, the recovery pump, the storage tank, the feeding pump, the filter and the recovery tank are connected through pipelines, the recovery tank is located above the working tank, a discharge port of the recovery tank is connected to the working tank, and a stirrer is arranged in the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667000.2A CN111958081A (en) | 2020-07-13 | 2020-07-13 | Surface pretreatment equipment before brazing of heat exchanger parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010667000.2A CN111958081A (en) | 2020-07-13 | 2020-07-13 | Surface pretreatment equipment before brazing of heat exchanger parts |
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| Publication Number | Publication Date |
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| CN111958081A true CN111958081A (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010667000.2A Pending CN111958081A (en) | 2020-07-13 | 2020-07-13 | Surface pretreatment equipment before brazing of heat exchanger parts |
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| CN109332069A (en) * | 2018-11-10 | 2019-02-15 | 江苏韦斯泰科技有限公司 | A kind of brazing flux electrostatic coating system |
| CN209272703U (en) * | 2018-11-01 | 2019-08-20 | 上海萨新东台热传输材料有限公司 | A kind of full-automatic leaching brazing flux equipment |
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| CN101728557A (en) * | 2009-11-19 | 2010-06-09 | 东方电气集团东方汽轮机有限公司 | Tubular solid oxide fuel cell dipping frock |
| CN201803367U (en) * | 2010-09-15 | 2011-04-20 | 东莞丰裕电机有限公司 | Energy saving quaternary body |
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Application publication date: 20201120 |
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