CN116532436A

CN116532436A - Surface treatment equipment

Info

Publication number: CN116532436A
Application number: CN202310376167.7A
Authority: CN
Inventors: 陈永阳; 章子秀; 麦小波; 许光威
Original assignee: Zhejiang Yinlun Machinery Co Ltd
Current assignee: Zhejiang Yinlun Machinery Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-04

Abstract

The application relates to a surface treatment device, which comprises a grease removing device, an oxide layer removing device, a drying device and a conveying device. The conveying device comprises a driving motor, a conveying net belt, a driving wheel, a driven wheel and a guiding wheel set. The transmission net belt is wound on the outer sides of the driving wheel and the driven wheel, and the driving motor can drive the driving wheel to drive the transmission net belt to continuously move among the grease removing device, the oxide layer removing device and the drying device. The surface treatment device further comprises a cleaning device, and the cleaning device is provided with a cleaning tank. The conveying net belt is wound on the guide wheel set and can pass in and out of the cleaning tank through the guide wheel set. The surface treatment equipment provided by the application solves the problems that a conveying device which runs synchronously easily pollutes the surface of a workpiece, and a multi-section conveying mechanism which runs independently easily causes the surface of the workpiece to be scratched and the position of the workpiece to deviate because of the asynchronism.

Description

Surface treatment equipment

Technical Field

The application relates to the technical field of workpiece impurity removal equipment, in particular to surface treatment equipment.

Background

In the field of new energy automobiles, heat management is generally required for a battery, and a cooling plate is generally used for heat exchange (including heating and heat dissipation) of the battery. Typically, a single cooling plate is formed by a series of forming processes and then a plurality of cooling plates are welded by furnace brazing. The surface of the formed cooling plate can be remained with a grease layer (mainly light-emitting oil), and an oxide layer can be also arranged on the surface of the cooling plate (usually an aluminum plate), so that the brazing strength of the subsequent cooling plate is greatly reduced due to the existence of the grease layer and the oxide layer. Therefore, before brazing in a furnace, it is necessary to remove the grease layer and the oxide layer on the surface of the cooling plate.

In the prior art, the grease layer and the oxide layer on the surface of the cooling plate are generally removed through cleaning in a plurality of procedures. It should be noted that the side of the workpiece close to the conveyor does not need to be brazed, and therefore, the brazing flux is only sprayed on the surface of the side of the workpiece facing away from the conveyor, and the brazing flux is not required to be sprayed on the surface of the side of the workpiece close to the conveyor. However, during the application of the flux, a small amount of flux may be applied to the conveyor, resulting in the conveyor still being contaminated with flux on a side surface of the workpiece adjacent to the conveyor during transport of the workpiece. Typically, the flux contains an adhesive, and therefore, after the flux contaminates a surface of the workpiece near the conveyor, the flux causes defects in the appearance of the workpiece and affects the flatness of the surface of the workpiece.

Therefore, in order to avoid that the flux sprayed in the previous process is carried into the next process by the conveyor, it is common practice to divide the conveyor into a plurality of stages for independent operation, that is, the plurality of stages are respectively provided with independent conveying mechanisms for respectively conveying the workpieces. However, the conveying mechanisms which are independently operated in multiple stages are difficult to realize complete synchronous operation, so that when workpieces move across the conveying mechanisms, the surfaces of the workpieces are easily scratched due to different speeds of adjacent conveying mechanisms, the positions of the workpieces are also offset, and the phenomenon of machine clamping is caused.

Disclosure of Invention

In view of this, it is necessary to provide a surface treatment apparatus to solve the problems that a conveyor device operating in synchronization easily contaminates the surface of a workpiece, and a multi-stage conveyor mechanism operating independently easily scratches the surface of the workpiece and shifts the position of the workpiece due to the lack of synchronization.

The surface treatment equipment provided by the application comprises a grease removing device, an oxide layer removing device, a drying device and a conveying device, wherein the grease removing device, the oxide layer removing device and the drying device are sequentially arranged. The oil removing device is used for removing oil on the surface of the workpiece, the oxide layer removing device is used for removing an oxide layer on one side surface of the workpiece, and the drying device is used for drying moisture on the surface of the workpiece. The conveying device comprises a driving motor, a conveying net belt, a driving wheel, driven wheels and guide wheel groups, wherein the number of the driven wheels is one or more. The conveying net belt extends to the tail end of the drying device continuously from the starting end of the grease removing device through the oxide layer removing device, and the conveying net belt is wound on the outer sides of the driving wheel and the driven wheel and is connected to the output end of the driving motor, and the driving motor can drive the driving wheel to drive the conveying net belt to continuously move among the grease removing device, the oxide layer removing device and the drying device. The surface treatment equipment further comprises a cleaning device, wherein the cleaning device is arranged between the oxide layer removing device and the drying device, and the cleaning device is provided with a cleaning tank for cleaning the conveying mesh belt. One end of the guide wheel set is arranged in the cleaning tank, the other end of the guide wheel set is arranged at the opening of the cleaning tank, the conveying net belt is wound on the guide wheel set and can enter and exit the cleaning tank through the guide wheel set, and the conveying net belt can drive a workpiece to move from one end of the guide wheel set, which is close to the oxide layer removing device, to one end of the guide wheel set, which is close to the drying device.

In one embodiment, the conveying mesh belt comprises two conveying chains and a woven mesh, wherein the two conveying chains are relatively arranged in parallel, the woven mesh is arranged between the two conveying chains, two ends of the woven mesh are respectively connected with the conveying chains, the driving wheel is of a gear structure, and the conveying chains are meshed with the driving wheel, so that the driving wheel can drive the conveying chains to drive the woven mesh to move.

In one embodiment, the guide wheel set comprises a first guide wheel, a second guide wheel and a third guide wheel, wherein the first guide wheel and the third guide wheel are arranged above the opening of the cleaning tank, the first guide wheel is arranged at one end of the guide wheel set, which is close to the oxide layer removing device, and the third guide wheel is arranged at one end of the guide wheel set, which is close to the drying device; the first guide wheels and the third guide wheels are arranged at intervals, and the distance between the first guide wheels and the third guide wheels is smaller than a preset distance; the second guide wheel is arranged in the cleaning tank and is arranged at intervals with the inner wall of the cleaning tank, and the conveying mesh belt is sequentially wound on the first guide wheel, the second guide wheel and the third guide wheel.

In one embodiment, the cleaning device comprises a cleaning tank, a filtering component and an ultrasonic generator, the cleaning tank is arranged in the cleaning tank, cleaning liquid is arranged in the cleaning tank, and the filtering component is connected with the cleaning tank and communicated with the cleaning tank so as to filter and remove impurities from the cleaning liquid entering the cleaning tank; the ultrasonic generator is arranged at one end of the cleaning tank, and can emit ultrasonic waves into the cleaning tank so as to remove the brazing flux on the surface of the conveying mesh belt.

In one embodiment, the filter assembly comprises a liquid pump, a filter and a connecting pipeline, and liquid inlets of the filter, the liquid pump and the cleaning tank are sequentially communicated through a plurality of sections of connecting pipelines.

In one embodiment, the bottom end of the side wall of the cleaning tank is provided with a slag discharging port communicated with the cleaning tank, and a slag discharging valve is arranged at the slag discharging port and used for opening or closing the slag discharging port.

In one embodiment, the bottom end of the side wall of the cleaning tank is provided with a liquid outlet communicated with the cleaning tank, and the liquid outlet is provided with a liquid outlet valve for opening or closing the liquid outlet.

In one embodiment, the surface treatment apparatus further comprises a tensioning mechanism connected to the conveyor belt for tightening the conveyor belt.

In one embodiment, the tensioning mechanism comprises a first supporting roller and a second supporting roller which are oppositely arranged at intervals, and the first supporting roller and the second supporting roller are fixedly arranged; the tensioning mechanism further comprises a gravity compression roller, the gravity compression roller is arranged between the first support roller and the second support roller in a rolling manner, the conveying net belt is sequentially wound on the first support roller, the gravity compression roller and the second support roller, and the gravity compression roller is arranged on the upper surface of the conveying net belt in a pressing manner so as to apply downward compression force to the conveying net belt.

In one embodiment, the number of the driven wheels is three, the three driven wheels and one driving wheel are respectively distributed at four corners of the quadrangle, and the conveying mesh belt is sequentially wound on the driving wheel and the three driven wheels.

Compared with the prior art, the surface treatment equipment provided by the application, the initial end from the grease remove device passes through oxide layer remove device and extends to drying device's end in succession by the conveying guipure, driving motor can drive the action wheel and drive the conveying guipure and remove between grease remove device, oxide layer remove device and drying device, and the conveying guipure can drive the work piece and be close to the one end that oxide layer remove device to the guide pulley group is close to drying device from the guide pulley group, it is known that conveyer has only a conveying guipure, and, the removal that is located the conveying guipure of grease remove device, oxide layer remove device and drying device everywhere is synchronous, consequently, the conveying device that this application provided has effectively solved sectional type conveying mechanism everywhere and has removed the asynchronous problem that leads to the work piece surface to be scratched and the position of work piece to take place the skew.

Further, a cleaning device is arranged between the oxide layer removing device and the drying device, the cleaning device is provided with a cleaning tank for cleaning the conveying mesh belt, the conveying mesh belt is wound on the guide wheel set and can enter and exit the cleaning tank through the guide wheel set, after leaving the oxide layer removing device, the conveying mesh belt can enter the cleaning tank through the guide wheel set to remove soldering flux adhered on the conveying mesh belt, and after that, the cleaned conveying mesh belt leaves the cleaning tank through the guide wheel set and enters the drying device. Thus, the problem that the conveying device capable of synchronously operating easily pollutes the surface of a workpiece is solved.

Furthermore, since the conveying mesh belt can drive the workpiece to move from one end of the guide wheel set, which is close to the oxide layer removing device, to one end of the guide wheel set, which is close to the drying device, it is known that the guide wheel set does not influence the continuous movement of the workpiece on the conveying mesh belt.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of a surface treatment apparatus according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of the portion B of FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at C;

fig. 5 is a schematic structural diagram of a cleaning device according to an embodiment of the present application.

Reference numerals: 100. a grease removing device; 110. a first processing chamber; 111. a first processing chamber; 112. a first communication port; 120. a first air circulation assembly; 121. a first exhaust fan; 122. a first air duct; 123. a first damper; 130. a first heating assembly; 131. a first heating plate; 200. oxide layer removing means; 210. a second processing chamber; 211. a second processing chamber; 220. a second air circulation assembly; 221. a second exhaust fan; 222. a second blower; 230. a spray assembly; 231. a spray gun; 232. a mechanical arm; 240. a flux recovery assembly; 241. a collection funnel; 242. a storage chamber; 300. a drying device; 310. a third processing chamber; 311. a third processing chamber; 312. a second communication port; 320. a third air circulation assembly; 321. a third exhaust fan; 322. a second air duct; 323. a second air valve; 330. a second heating assembly; 331. a second heating plate; 400. a cooling fan; 500. a mounting bracket; 600. a transfer device; 610. a driving motor; 620. a conveyor belt; 630. a driving wheel; 640. driven wheel; 650. a guide wheel set; 651. a first guide wheel; 652. a second guide wheel; 653. a third guide wheel; 700. a cleaning device; 710. a cleaning pool; 711. a cleaning tank; 712. a slag discharge port; 713. a slag discharging valve; 714. a liquid outlet; 715. a liquid discharge valve; 720. an ultrasonic generator; 730. a filter assembly; 731. a liquid pump; 732. a filter; 733. a connecting pipe; 800. a tensioning mechanism; 810. a first support roller; 820. a second support roller; 830. the gravity compresses the roller.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" 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 are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the prior art, the grease layer and the oxide layer on the surface of the cooling plate are generally removed through cleaning in a plurality of procedures. If the cooling plate is cleaned in the open space, grease may volatilize to the external space, or a cleaning agent (generally, brazing flux for removing the oxide layer) leaks to the external space, which further causes serious pollution to the working environment and affects the health of operators. If the cooling plate is cleaned in the closed space, the concentration of grease vapor in the closed space may be too high, and knocking is likely to occur.

Referring to fig. 1-5, the problem that grease or cleaning agent is easy to leak and deflagration is easy to occur in the conventional cleaning technology is solved. The application provides a surface treatment apparatus including a grease removal device 100, an oxide layer removal device 200, and a transfer device 600, the transfer device 600 being capable of transferring a workpiece to the grease removal device 100 and the oxide layer removal device 200 in order.

The grease removing apparatus 100 includes a first processing chamber 110, a first air circulation assembly 120 and a first heating assembly 130, the first processing chamber 110 is provided with a first processing chamber 111, the first heating assembly 130 is disposed in the first processing chamber 111, and the first heating assembly 130 can heat the ambient temperature in the first processing chamber 111 to a first preset temperature value, and the first preset temperature value is greater than the evaporation temperature of the grease. The first air circulation assembly 120 communicates with the first process chamber 111 for controlling the exchange of gas within the first process chamber 111 with external gas.

The oxide layer removing apparatus 200 includes a second processing chamber 210, a second air circulation assembly 220, and a spray assembly 230, the second processing chamber 210 is provided with a second processing chamber 211, the spray assembly 230 is provided in the second processing chamber 211, and the spray assembly 230 is used for spraying a brazing flux (for removing an oxide layer) to a surface of a workpiece. The second air circulation assembly 220 communicates with the second process chamber 211 for controlling the exchange of the gas in the second process chamber 211 with the external gas, and the second air circulation assembly 220 is capable of controlling the air pressure in the second process chamber 211.

It should be noted that, the evaporation temperature of the gloss oil is about 150 ℃, and the first preset temperature ranges from 200 ℃ to 250 ℃.

When the surface treatment apparatus starts to operate, the first heating assembly 130 may be used to preheat the first treatment chamber 111 so that the temperature of the first treatment chamber 111 reaches a first preset temperature value, and then the workpiece is transferred into the first treatment chamber 111 by the transfer device 600. Since the first preset temperature value is greater than the evaporation temperature of the grease, the grease adhering to the surface of the workpiece can be evaporated into the first processing chamber 111. Note that, in general, when the concentration of grease (mainly, varnish) in a closed space exceeds a certain value, knocking is likely to occur. Therefore, the first air circulation assembly 120 is used for controlling the exchange of the air in the first processing cavity 111 and the external air so as to convey the grease vapor in the first processing cavity 111 to the outer side of the first processing cavity 111, so that the concentration of the grease vapor in the first processing cavity 111 is ensured not to exceed the safe concentration value reaching deflagration, and the safety of removing the grease on the surface of the workpiece by the grease removing device 100 is ensured. In addition, since the treatment process is located in the first treatment cavity 111, the diffusion of the grease vapor to the working environment can be effectively avoided, and the physical health of the operator is further ensured.

After the grease on the surface of the workpiece is removed, the workpiece is transferred from the first processing chamber 111 to the second processing chamber 211 by the transfer device 600. Then, a flux (typically a mixed solution of flux and water) is sprayed to one side surface of the workpiece using the spray assembly 230 so that the oxide layer on the surface of the workpiece is dissolved in the flux solution. And, the surplus flux solution in the space of the second process chamber 211 is transferred to a specific area through the second air circulation assembly 220 to recycle the flux solution. Also, since the second air circulation assembly 220 can control the air pressure in the second processing chamber 211, a negative pressure region can be manufactured in the second processing chamber 211 by using the second air circulation assembly 220 so that the flux solution in the second processing chamber 211 cannot diffuse to other regions of the surface treatment apparatus. From the above, the oxide layer removing device 200 effectively prevents the diffusion of the flux solution, and ensures the physical health of operators.

In one embodiment, as shown in fig. 2, the first heating assembly 130 includes a plurality of first heating plates 131, and the plurality of first heating plates 131 are uniformly distributed in the first processing chamber 111.

In this manner, the first heating assembly 130 advantageously preheats the first process chamber 111 and also advantageously improves the uniformity of temperature throughout the first process chamber 111.

It should be noted that the step of preheating the first processing chamber 111 by providing a plurality of first heating plates 131 in the first processing chamber 111 is very important. The following problems may be caused if the workpiece is transferred to the first processing chamber 111 and then the first processing chamber 111 is heated. Specifically, if the first air circulation assembly 120 is not turned on during heating, the probability of knocking of the grease vapor in the first processing chamber 111 increases sharply as the concentration of the grease vapor in the first processing chamber 111 increases more and more. If the first air circulation assembly 120 is turned on during heating, the ambient temperature in the first processing chamber 111 will not rise to the first preset temperature value late, resulting in a sharp rise in the power consumption of the surface treatment apparatus. Therefore, it is known that the preheating step is very critical.

In one embodiment, as shown in fig. 2, the first air circulation assembly 120 includes a first exhaust fan 121 and a first blower (not shown), the first exhaust fan 121 and the first blower are respectively connected to two ends of the first processing chamber 111, and the first exhaust fan 121 is used for exhausting the air in the first processing chamber 111, and the first blower is used for delivering the air into the first processing chamber 111.

By this arrangement, the circulation efficiency of the gas in the first processing chamber 111 is greatly improved.

Specifically, as shown in fig. 2, the first air circulation assembly 120 further includes a first air duct 122 and a first air valve 123, the first exhaust fan 121 is respectively connected to each area of the first processing chamber 111 through a plurality of first air ducts 122, and one end of the first air duct 122, which is connected to the first processing chamber 111, is provided with the first air valve 123, where the first air valve 123 is used to control the air output of the first air duct 122.

The air outlet amount of the first air pipe 122 is controlled by the first air valve 123, so that on one hand, the concentration of grease vapor in the first processing cavity 111 can be ensured to be kept below a safe concentration value, and on the other hand, the reduction of the ambient temperature of the first processing cavity 111 caused by the overlarge air outlet amount of the first processing cavity 111 can be avoided, and further the evaporation of grease on the surface of a workpiece is influenced.

Further, in one embodiment, as shown in fig. 2, the first processing chamber 110 is provided with a plurality of first communication ports 112 respectively communicating with the first processing chambers 111, and the first blowers respectively communicate with the first processing chambers 111 through the plurality of first communication ports 112.

In one embodiment, as shown in fig. 3, the second air circulation assembly 220 includes a second blower 221 and a second blower 222, the second blower 221 and the second blower 222 are respectively connected to two ends of the second processing chamber 211, and the second blower 221 is used for exhausting the air in the second processing chamber 211, and the second blower 222 is used for delivering the air into the second processing chamber 211.

By this arrangement, the circulation efficiency of the gas in the second processing chamber 211 is greatly improved.

Further, in one embodiment, the second blower 222 is capable of filtering the air to filter out some impurities in the air, thereby ensuring the purity of the air delivered into the second processing chamber 211.

In one embodiment, as shown in fig. 3, the spraying assembly 230 includes a spraying gun 231 and a mechanical arm 232, the mechanical arm 232 is connected to the second processing chamber 210, one end of the spraying gun 231 is connected to the mechanical arm 232, the other end extends into the second processing chamber 211, and the mechanical arm 232 can control the spraying gun 231 to move and rotate relative to itself.

In this manner, the spray flexibility of the spray coating assembly 230 is greatly improved.

In one embodiment, as shown in fig. 3, the oxide layer removing apparatus 200 further includes a flux recovery assembly 240, and the flux recovery assembly 240 is disposed below the second processing chamber 210 and communicates with the second processing chamber 211, so that the flux in the second processing chamber 211 can be converged to the flux recovery assembly 240.

Therefore, the waste of brazing flux is avoided, and the treatment cost of the surface treatment equipment is reduced.

Specifically, as shown in fig. 3, the flux recovery assembly 240 includes a collection funnel 241 and a storage chamber 242, and the surplus flux solution in the second process chamber 211 can be collected into the storage chamber 242 through the collection funnel 241.

In one embodiment, as shown in fig. 4, the surface treatment apparatus further includes a drying device 300, and the transfer device 600 is capable of transferring the workpiece from the oxide layer removing device 200 to the drying device 300. The drying device 300 comprises a third processing chamber 310, a third air circulation assembly 320 and a second heating assembly 330, wherein the third processing chamber 310 is provided with a third processing cavity 311, the second heating assembly 330 is arranged in the third processing cavity 311, and the second heating assembly 330 can heat the ambient temperature in the third processing cavity 311 to a second preset temperature value so as to evaporate the moisture on the surface of the workpiece. The third air circulation assembly 320 communicates with the third process chamber 311 for controlling the exchange of the gas within the third process chamber 311 with the external gas.

Thus, the brazing operation of the workpiece is facilitated.

Further, in one embodiment, as shown in fig. 4, the second heating assembly 330 includes a plurality of second heating fins 331, and the plurality of second heating fins 331 are uniformly distributed in the third processing chamber 311.

In this way, the uniformity of temperature within the entire third processing chamber 311 is advantageously improved.

In one embodiment, as shown in fig. 4, the third air circulation assembly 320 includes a third exhaust fan 321 and a third blower (not shown), where the third exhaust fan 321 and the third blower are respectively connected to two ends of the third processing chamber 311, and the third exhaust fan 321 is used to exhaust the gas in the third processing chamber 311, and the third blower is used to deliver air into the third processing chamber 311.

By this arrangement, the circulation efficiency of the gas in the third processing chamber 311 is greatly improved.

Specifically, as shown in fig. 4, the third air circulation assembly 320 further includes a second air duct 322 and a second air valve 323, the third exhaust fan 321 is respectively connected to each area of the third processing chamber 311 through a plurality of second air ducts 322, and one end of the second air duct 322, which is connected to the third processing chamber 311, is provided with the second air valve 323, where the second air valve 323 is used to control the air output of the second air duct 322.

Further, in one embodiment, as shown in fig. 4, the third processing chamber 310 is provided with a plurality of second communication ports 312 respectively communicating with the third processing chamber 311, and the third blower communicates with the third processing chamber 311 through the plurality of second communication ports 312 respectively.

In an embodiment, as shown in fig. 4, the surface treatment apparatus further includes a cooling fan 400, where the cooling fan 400 is disposed on a side of the drying device 300 away from the oxide layer removing device 200, and the cooling fan 400 is used for cooling the workpiece.

In one embodiment, as shown in fig. 1 to 4, the surface treating apparatus further includes a mounting bracket 500, and the grease removing device 100, the oxide layer removing device 200, the drying device 300, and the transfer device 600 are mounted to the mounting bracket 500.

Further, in one embodiment, the height of the mounting bracket 500 is adjustable such that the first process chamber 110, the second process chamber 210, and the third process chamber 310 are all height adjustable.

Also, the first, second and third process chambers 110, 210 and 310 are each provided with a movable chamber door (not shown) to open or close the first, second or third process chambers 111, 211 or 311.

It should be noted that the side of the workpiece near the conveyor 600 does not need to be brazed, and therefore, the brazing flux is sprayed only on the side surface of the workpiece facing away from the conveyor 600, and the brazing flux is not required to be sprayed on the side surface of the workpiece near the conveyor 600. However, during the process of spraying the flux, a small amount of flux may be sprayed to the conveyor 600, resulting in the conveyor 600 transporting the workpiece, and the flux may still be contaminated to a side surface of the workpiece near the conveyor 600. Typically, the flux contains an adhesive, and thus, after the flux contaminates a side surface of the workpiece near the conveyor 600, the flux causes defects in the appearance of the workpiece and affects the flatness of the workpiece surface.

Therefore, in order to prevent the flux sprayed in the second processing chamber 211 from being carried into the third processing chamber 311 by the transfer device 600, it is common practice to divide the transfer device 600 into a plurality of stages to be independently operated, that is, the first processing chamber 111, the second processing chamber 211, and the third processing chamber 311 are respectively provided with independent transfer mechanisms to respectively transfer the workpieces. However, the conveying mechanisms which are independently operated in multiple stages are difficult to realize complete synchronous operation, so that when workpieces move across the conveying mechanisms, the surfaces of the workpieces are easily scratched due to different speeds of adjacent conveying mechanisms, the positions of the workpieces are also offset, and the phenomenon of machine clamping is caused.

Referring to fig. 1-5, in order to solve the problems that the synchronous conveyor 600 is easy to pollute the surface of the workpiece, and the independently operated multi-stage conveyor is easy to scratch the surface of the workpiece and shift the position of the workpiece due to the asynchronous operation. In the surface treatment apparatus provided in the present application, the grease removal unit 100, the oxide layer removal unit 200, and the drying unit 300 are arranged in order. The conveying device 600 includes a driving motor 610, a conveying belt 620, a driving wheel 630, driven wheels 640, and a guide wheel group 650, the number of the driven wheels 640 being one or more.

The conveying mesh belt 620 continuously extends from the start end of the grease removing apparatus 100 to the end of the drying apparatus 300 through the oxide layer removing apparatus 200, and the conveying mesh belt 620 is wound around the outer sides of the driving wheel 630 and the driven wheel 640, and the driving wheel 630 is connected to the output end of the driving motor 610, and the driving motor 610 can drive the driving wheel 630 to drive the conveying mesh belt 620 to continuously move among the grease removing apparatus 100, the oxide layer removing apparatus 200 and the drying apparatus 300.

The surface treatment apparatus further includes a cleaning device 700, the cleaning device 700 being provided between the oxide layer removing device 200 and the drying device 300, and the cleaning device 700 being provided with a cleaning bath 711 for cleaning the conveyor belt 620.

One end of the guide wheel set 650 is arranged in the cleaning tank 711, the other end of the guide wheel set 650 is arranged at the opening of the cleaning tank 711, the conveying net belt 620 is wound on the guide wheel set 650 and can enter and exit the cleaning tank 711 through the guide wheel set 650, and the conveying net belt 620 can drive a workpiece to move from one end of the guide wheel set 650, which is close to the oxide layer removing device 200, to one end of the guide wheel set 650, which is close to the drying device 300.

The start end of the grease removing apparatus 100 is the end of the grease removing apparatus 100 away from the oxide layer removing apparatus 200, and the end of the drying apparatus 300 is the end of the drying apparatus 300 away from the oxide layer removing apparatus 200.

The conveying mesh belt 620 extends continuously from the initial end of the grease removing device 100 to the tail end of the drying device 300 through the oxide layer removing device 200, the driving motor 610 can drive the driving wheel 630 to drive the conveying mesh belt 620 to continuously move among the grease removing device 100, the oxide layer removing device 200 and the drying device 300, and the conveying mesh belt 620 can drive the workpiece to move from one end of the guide wheel group 650, which is close to the oxide layer removing device 200, to one end of the guide wheel group 650, which is close to the drying device 300, and as a result, the conveying device 600 only has one conveying mesh belt 620, and the movement of the conveying mesh belt 620, which is positioned at the positions of the grease removing device 100, the oxide layer removing device 200 and the drying device 300, is synchronous, so that the problem that the surface of the workpiece is scratched and the position of the workpiece is offset due to the asynchronous movement of the segmented conveying mechanism is effectively solved.

Further, a cleaning device 700 is disposed between the oxide layer removing device 200 and the drying device 300, the cleaning device 700 is provided with a cleaning tank 711 for cleaning the conveying mesh belt 620, and the conveying mesh belt 620 is wound around the guide wheel set 650 and can enter and exit the cleaning tank 711 through the guide wheel set 650, so that after the conveying mesh belt 620 leaves the oxide layer removing device 200, the conveying mesh belt 620 can enter the cleaning tank 711 through the guide wheel set 650 to remove the soldering flux adhered on the conveying mesh belt 620, and then the cleaned conveying mesh belt 620 leaves the cleaning tank 711 through the guide wheel set 650 and enters the drying device 300. In this way, the problem that the conveyor 600 which operates in synchronization is prone to contaminate the surface of the workpiece is solved.

Further, since the conveyor belt 620 can drive the workpiece to move from the end of the guide wheel set 650 near the oxide layer removing device 200 to the end of the guide wheel set 650 near the drying device 300, it is known that the guide wheel set 650 does not affect the continuous movement of the workpiece on the conveyor belt 620.

In summary, the surface treatment device provided by the application effectively solves the problems that the conveying device 600 running synchronously easily pollutes the surface of a workpiece, and the independently running multi-section conveying mechanism easily scratches the surface of the workpiece and shifts the position of the workpiece due to the asynchronism.

Further, in one embodiment, the number of the driven wheels 640 is three, the three driven wheels 640 and one driving wheel 630 are respectively distributed at four corners of the quadrangle, and the conveying mesh belt 620 is sequentially wound around the driving wheel 630 and the three driven wheels 640.

In this way, the conveying belt 620 can form a linear conveying end surface, which is beneficial to conveying the workpiece on the conveying belt 620.

In an embodiment, the conveying mesh belt 620 includes two conveying chains (not shown) disposed in parallel and a mesh grid (not shown) disposed between the two conveying chains, two ends of the mesh grid are respectively connected to the conveying chains, and the driving wheel 630 is in a gear structure, and the conveying chains are engaged with the driving wheel 630, so that the driving wheel 630 can drive the conveying chains to drive the mesh grid to move.

In this way, the transmission efficiency of the conveyor belt 620 and the driving wheel 630 is greatly improved, and the difficulty in setting the conveyor belt 620 is reduced.

Further, in order to improve the connection stability of the transmission chain, in an embodiment, the driven wheel 640 is also a gear structure, and the transmission chain is engaged with the driven wheel 640.

Specifically, the conveying chain is a multi-section hinged splayed chain.

More specifically, in order to improve the structural strength of the mesh grid and reduce the plastic deformation degree of the mesh grid, in one embodiment, the mesh grid is made of metal, that is, the mesh grid is formed by braiding metal wires.

Further, it should be noted that, when the environmental temperature of the workpiece is high (above 150 ℃), the conventional conveyor belt of the multi-stage conveyor mechanism is made of PU, the conveyor belt made of PU is easy to deform, and the workpiece is easy to adhere to the conveyor belt, so that in order to avoid the above problem, a cooling device is generally required to be provided to cool the conveyor belt. However, the provision of the cooling means also greatly increases the power consumption of the surface treatment apparatus, thereby increasing the production cost of the workpiece.

In this application, replace the conveyer belt of PU material through the mesh grid of metal material, not only improved the structural strength of mesh grid, reduced the deformation degree of mesh grid, moreover, the mesh grid of metal material can not send out the adhesion with the work piece, so, need not set up cooling device in addition and cool off conveyer belt 620, greatly reduced surface treatment facility's consumption, and then reduced the manufacturing cost of work piece.

In one embodiment, as shown in fig. 3, the guide wheel set 650 includes a first guide wheel 651, a second guide wheel 652 and a third guide wheel 653, the first guide wheel 651 and the third guide wheel 653 are disposed above the opening of the cleaning tank 711, the first guide wheel 651 is disposed at an end of the guide wheel set 650 near the oxide layer removing device 200, and the third guide wheel 653 is disposed at an end of the guide wheel set 650 near the drying device 300. The first guide wheel 651 and the third guide wheel 653 are disposed at intervals and a distance between the first guide wheel 651 and the third guide wheel 653 is smaller than a preset distance. The second guide wheel 652 is disposed in the cleaning tank 711 and spaced from the inner wall of the cleaning tank 711, and the conveyor belt 620 is wound around the first guide wheel 651, the second guide wheel 652 and the third guide wheel 653 in this order.

The preset distance ranges from 1mm to 200mm (inclusive), and the larger the size of the workpiece is, the larger the preset distance can be properly enlarged.

Generally, the volume of the workpiece is large, and thus, it is so arranged that the workpiece easily spans the space between the first guide wheel 651 and the third guide wheel 653, thereby avoiding that the space between the first guide wheel 651 and the third guide wheel 653 affects the conveyance of the workpiece. Therefore, by the arrangement, the conveying net belt 620 is skillfully guided into the cleaning tank 711 for cleaning on the premise of not influencing workpiece conveying, so that the working efficiency of the guide wheel set 650 is greatly improved, and the structural complexity of the guide wheel set 650 is reduced.

However, in other embodiments, the number of the second guide wheels 652 provided in the cleaning tank 711 may be plural, which is advantageous to prolong the cleaning time of the conveyor belt 620 in the cleaning tank 711 and improve the cleaning efficiency of the cleaning device 700.

In one embodiment, as shown in fig. 5, the cleaning apparatus 700 includes a cleaning tank 710, a filtering assembly 730 and an ultrasonic generator 720, the cleaning tank 711 is disposed in the cleaning tank 710, and cleaning solution is disposed in the cleaning tank 711, and the filtering assembly 730 is connected to the cleaning tank 710 and is communicated with the cleaning tank 711, so as to filter and remove impurities from the cleaning solution entering the cleaning tank 711. The ultrasonic generator 720 is provided at one end of the cleaning bath 710, and the ultrasonic generator 720 can emit ultrasonic waves into the cleaning bath 711 to remove flux on the surface of the conveyor belt 620.

In this way, the flux removal efficiency of the conveyor belt 620 is greatly improved.

Specifically, in one embodiment, as shown in fig. 5, the filter assembly 730 includes a liquid pump 731, a filter 732, and a connection pipe 733, and liquid inlets of the filter 732, the liquid pump 731, and the cleaning tank 711 are sequentially connected through the multi-stage connection pipe 733.

Further, in one embodiment, as shown in fig. 5, a slag discharging port 712 is provided at the bottom end of the side wall of the cleaning tank 710, which communicates with the cleaning tank 711, and a slag discharging valve 713 is provided at the slag discharging port 712 for opening or closing the slag discharging port 712.

Thus, the recovery and the utilization of the brazing flux are facilitated.

Further, as shown in fig. 5, a drain hole 714 communicating with the cleaning tank 711 is provided at the bottom of the side wall of the cleaning tank 710, and a drain valve 715 is provided at the drain hole 714 for opening or closing the drain hole 714.

So, can collect waste water, avoid waste water pollution environment.

In one embodiment, as shown in fig. 4, the surface treatment apparatus further includes a tensioning mechanism 800, and the tensioning mechanism 800 is connected to the conveyor belt 620 for tightening the conveyor belt 620.

In this way, as long as the conveyor belt 620 becomes slack, the tensioning mechanism 800 can timely tighten the conveyor belt 620, avoiding the conveyor belt 620 from slackening and affecting the conveyance of the workpiece.

Specifically, in one embodiment, as shown in fig. 4, the tensioning mechanism 800 includes a first support roller 810 and a second support roller 820 that are disposed opposite to each other at a distance, and the first support roller 810 and the second support roller 820 are fixedly disposed. The tensioning mechanism 800 further includes a gravity pressing roller 830, which is disposed between the first supporting roller 810 and the second supporting roller 820 in a gravity pressing manner, the conveyor belt 620 is sequentially wound around the first supporting roller 810, the gravity pressing roller 830 and the second supporting roller 820, and the gravity pressing roller 830 is disposed on the upper surface of the conveyor belt 620 in a pressing manner, so as to apply a downward pressing force to the conveyor belt 620.

By the arrangement, the conveying net belt 620 can be kept in a tight state all the time through the gravity pressing roller 830, so that the loosening of the conveying net belt 620 is effectively avoided, and the failure rate of surface treatment equipment is reduced.

In summary, it is known that when the surface treatment apparatus provided in the present application is operated, the workpiece is conveyed to the first treatment chamber 111 by the conveying mesh belt 620 through the feeding port, the grease on the surface of the workpiece is removed by the grease removing device 100, then the workpiece is conveyed to the second treatment chamber 211 by the conveying mesh belt 620, the oxide layer film on one side surface of the workpiece is removed by the oxide layer removing device 200, then the conveying mesh belt 620 enters the cleaning tank 711, the cleaning device 700 cleans the conveying mesh belt 620 to remove the brazing flux on the surface of the conveying mesh belt 620, then the conveying mesh belt 620 drives the workpiece to enter the third treatment chamber 311, the surface of the workpiece is dried by the drying device 300, and then the workpiece is conveyed to the cooling fan 400 by the conveying mesh belt 620 to cool the workpiece. Finally, the workpiece can enter a brazing furnace for brazing.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims

1. A surface treatment apparatus characterized by comprising a grease removing device (100), an oxide layer removing device (200), a drying device (300), and a conveying device (600), the grease removing device (100), the oxide layer removing device (200), and the drying device (300) being arranged in sequence;

the grease removing device (100) is used for removing grease on the surface of a workpiece, the oxide layer removing device (200) is used for removing an oxide layer on one side surface of the workpiece, and the drying device (300) is used for drying moisture on the surface of the workpiece;

The conveying device (600) comprises a driving motor (610), a conveying net belt (620), a driving wheel (630), driven wheels (640) and guide wheel groups (650), wherein the number of the driven wheels (640) is one or more;

the conveying mesh belt (620) continuously extends from the initial end of the grease removing device (100) to the tail end of the drying device (300) through the oxide layer removing device (200), the conveying mesh belt (620) is wound on the outer sides of the driving wheel (630) and the driven wheel (640), the driving wheel (630) is connected to the output end of the driving motor (610), and the driving motor (610) can drive the driving wheel (630) to drive the conveying mesh belt (620) to continuously move among the grease removing device (100), the oxide layer removing device (200) and the drying device (300);

the surface treatment apparatus further comprises a cleaning device (700), the cleaning device (700) is arranged between the oxide layer removing device (200) and the drying device (300), and the cleaning device (700) is provided with a cleaning tank (711) for cleaning the conveying mesh belt (620);

the utility model discloses a cleaning device, including washing tank (711), guide wheelset (650), conveyer belt (620), guide wheelset (650), cleaning tank (711) are located to one end in locating in cleaning tank (711), the other end is located the opening part of cleaning tank (711), conveyer belt (620) are located around guide wheelset (650) and can pass through guide wheelset (650) business turn over cleaning tank (711), just conveyer belt (620) can drive the work piece follow guide wheelset (650) are close to one end of oxide layer remove device (200) is removed to guide wheelset (650) are close to one end of drying device (300).

2. The surface treatment apparatus according to claim 1, wherein the conveyor belt (620) comprises two conveyor chains arranged in parallel and a mesh grid arranged between the two conveyor chains, wherein both ends of the mesh grid are respectively connected with the conveyor chains, the driving wheel (630) is in a gear structure, and the conveyor chains are engaged with and connected with the driving wheel (630), so that the driving wheel (630) can drive the conveyor chains to drive the mesh grid to move.

3. The surface treatment apparatus according to claim 1, wherein the guide wheel group (650) includes a first guide wheel (651), a second guide wheel (652) and a third guide wheel (653), the first guide wheel (651) and the third guide wheel (653) are provided above the opening of the cleaning bath (711), and the first guide wheel (651) is provided at an end of the guide wheel group (650) near the oxide layer removing device (200), and the third guide wheel (653) is provided at an end of the guide wheel group (650) near the drying device (300); the first guide wheel (651) and the third guide wheel (653) are arranged at intervals, and the distance between the first guide wheel (651) and the third guide wheel (653) is smaller than a preset distance; the second guide wheel (652) is arranged in the cleaning tank (711) and is arranged with the inner wall of the cleaning tank (711) at intervals, and the conveying mesh belt (620) is sequentially wound on the first guide wheel (651), the second guide wheel (652) and the third guide wheel (653).

4. The surface treatment apparatus according to claim 1, wherein the cleaning device (700) includes a cleaning tank (710), a filter assembly (730) and an ultrasonic generator (720), the cleaning tank (711) is provided in the cleaning tank (710), and a cleaning liquid is provided in the cleaning tank (711), and the filter assembly (730) is connected to the cleaning tank (710) and communicates with the cleaning tank (711) to filter and remove impurities from the cleaning liquid entering the cleaning tank (711); the ultrasonic generator (720) is arranged at one end of the cleaning tank (710), and the ultrasonic generator (720) can emit ultrasonic waves into the cleaning tank (711) so as to remove the brazing flux on the surface of the conveying mesh belt (620).

5. The surface treatment apparatus according to claim 4, wherein the filter assembly (730) includes a liquid pump (731), a filter (732) and a connection pipe (733), and the liquid inlets of the filter (732), the liquid pump (731) and the cleaning tank (711) are sequentially communicated through a plurality of stages of the connection pipe (733).

6. The surface treatment apparatus according to claim 4, wherein a slag discharge port (712) communicating with the cleaning bath (711) is provided at a bottom end of a side wall of the cleaning bath (710), and a slag discharge valve (713) is provided at the slag discharge port (712) for opening or closing the slag discharge port (712).

7. The surface treatment apparatus according to claim 4, wherein a drain port (714) communicating with the cleaning tank (711) is provided at a bottom end of a side wall of the cleaning tank (710), and a drain valve (715) is provided at the drain port (714) for opening or closing the drain port (714).

8. The surface treatment apparatus according to claim 1, further comprising a tensioning mechanism (800), the tensioning mechanism (800) being connected to the conveyor belt (620) for tightening the conveyor belt (620).

9. The surface treating apparatus according to claim 8, wherein the tensioning mechanism (800) includes a first support roller (810) and a second support roller (820) disposed in opposition to each other with the first support roller (810) and the second support roller (820) fixedly disposed; the tensioning mechanism (800) further comprises a gravity compression roller (830), the gravity compression roller is arranged between the first support roller (810) and the second support roller (820), the conveying mesh belt (620) is sequentially wound on the first support roller (810), the gravity compression roller (830) and the second support roller (820), and the gravity compression roller (830) is arranged on the upper surface of the conveying mesh belt (620) in a compression mode, so that downward compression force is applied to the conveying mesh belt (620).

10. The surface treating apparatus according to claim 1, wherein the number of the driven wheels (640) is three, three driven wheels (640) and one driven wheel (630) are respectively disposed at four corners of a quadrangle, and the conveyor belt (620) is sequentially wound around the driving wheel (630) and the three driven wheels (640).