Automatic cleaning equipment for carrier plate

Abstract

The embodiment of the utility model discloses automatic carrier plate cleaning equipment which comprises a cleaning mechanism and a drying mechanism, and the drying mechanism is arranged at the discharging end of the cleaning mechanism. The cleaning mechanism comprises a first spraying cleaning assembly, an ultrasonic cleaning assembly, a second spraying cleaning assembly, a first isolation assembly, a third spraying cleaning assembly and a second isolation assembly which are sequentially arranged in the carrying plate transferring direction. The mesh belt assembly is used for sequentially conveying the carrier plates forwards according to cleaning procedures, the first liquid storage tank is used for providing cleaning liquid for the first spraying and cleaning assembly and the second spraying and cleaning assembly, and the second liquid storage tank is used for providing cleaning liquid for the third spraying and cleaning assembly. The mesh belt is adopted as a conveying mechanism for conveying the carrier plate, the mesh belt is higher in rigidity and bearing capacity, the middle of the mesh belt is not prone to sinking during long-distance conveying, and therefore carrier plate conveying is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to an automatic cleaning equipment for a carrier plate. Background Art

[0002] After the PCB circuit board is processed, it needs to be cleaned on the surface to remove the debris, solder, rosin and other substances left during the processing. There are multiple PCB boards placed on the carrier board. The overall weight of the carrier board is relatively large, and the general cleaning equipment has more process steps. The carrier board has a long transmission distance during the entire cleaning process. The traditional synchronous belt transmission method is prone to drop in the middle of the conveyor belt, which affects the transmission stability and cleaning effect. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an automatic carrier cleaning device to solve the technical problem of unstable transmission of the prior cleaning device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The embodiment of the utility model provides an automatic carrier cleaning device, which comprises: a cleaning mechanism and a drying mechanism, wherein the drying mechanism is arranged at the discharge end of the cleaning mechanism;

[0006] The cleaning mechanism includes: a first spray cleaning component, an ultrasonic cleaning component, a second spray cleaning component, a first isolation component, a third spray cleaning component and a second isolation component which are arranged in sequence according to the carrier transfer direction; a mesh belt component for conveying the carrier forward in sequence according to the cleaning process, a first liquid storage tank for providing cleaning liquid to the first spray cleaning component and the second spray cleaning component, and a second liquid storage tank for providing cleaning liquid to the third spray cleaning component.

[0007] Wherein, the cleaning mechanism also includes a frame and a shell connected to the frame, the first spray cleaning component, the ultrasonic cleaning component, the second spray cleaning component, the first isolation component, the third spray cleaning component and the second isolation component and the mesh belt component are all connected to the frame and are located in the shell, the mesh belt component includes: a front-end synchronous wheel module and a rear-end synchronous wheel module connected to the frame, a mesh belt arranged on the front-end synchronous wheel module and the rear-end synchronous wheel module, and a plurality of supporting roller modules arranged between the front-end synchronous wheel module and the rear-end synchronous wheel module, the carrier is transported by the mesh belt and passes through the first spray cleaning component, the ultrasonic cleaning component, the second spray cleaning component, the first isolation component, the third spray cleaning component and the second isolation component in sequence to complete each step of the cleaning process.

[0008] Among them, the third spray cleaning component includes: a first-level spray water washing unit, a second-level spray water washing unit, a third-level spray water washing unit and a fourth-level spray water washing unit which are arranged in sequence front and back along the carrier conveying direction; the first-level spray water washing unit, the second-level spray water washing unit, the third-level spray water washing unit and the fourth-level spray water washing unit each include a plurality of groups of spray rods which are arranged in an upper and lower position, and nozzles are provided on the spray rods.

[0009] Among them, the second liquid storage tank includes: a first water washing tank, a second water washing tank and a third water washing tank arranged in sequence in front and behind; the third water washing tank, the second water washing tank and the first water washing tank form a high and low overflow structure in sequence, the third water washing tank conveys cleaning liquid to the four-stage spray water washing unit and the three-stage spray water washing unit, the second water washing tank provides cleaning liquid to the two-stage spray water washing unit, and the first water washing tank provides cleaning liquid to the one-stage spray water washing unit.

[0010] Among them, the ultrasonic cleaning component includes: a first-level ultrasonic cleaning unit, a second-level ultrasonic cleaning unit, a third-level ultrasonic cleaning unit, and a fourth-level ultrasonic cleaning unit arranged in sequence along the carrier conveying direction; the ultrasonic frequency of the first-level ultrasonic cleaning unit and the second-level ultrasonic cleaning unit is 28Hz, and the ultrasonic frequency of the third-level ultrasonic cleaning unit and the fourth-level ultrasonic cleaning unit is 40Hz.

[0011] Wherein, the first isolation component includes: a wind shear isolation unit and an isolation segment, and the wind shear isolation unit is located in front of the isolation segment.

[0012] Wherein, the second spray cleaning assembly includes: a first spray unit and a second spray unit, and the first spray unit and the second spray unit both include a plurality of groups of water spray pipes that are relatively distributed in an upper and lower direction.

[0013] Wherein, the drying mechanism includes: a wind shear component, a drying component, an isolation component and a cooling component which are arranged in sequence in front and behind; wherein, the drying component includes: a primary drying unit, a secondary drying unit and a tertiary drying unit.

[0014] Wherein, the wind shear component comprises: a primary wind shear unit and a secondary wind shear unit, and both the primary wind shear unit and the secondary wind shear unit comprise a plurality of groups of wind shear knives arranged relatively up and down.

[0015] Among them, the first-stage drying unit, the second-stage drying unit and the third-stage drying unit have the same structure, and all include: a plurality of drying air knife groups arranged relatively up and down and a pipeline unit providing hot air flow for the drying air knife groups, the pipeline unit includes an air supply pipe, and an air filter, a fan, an air heating pack, a HEPA filter and a simple ball valve arranged on the air supply pipe in sequence.

[0016] The automatic cleaning device for carriers of the utility model adopts a mesh belt as a transmission mechanism for carrier conveying. The mesh belt has higher rigidity and stronger carrying capacity, and is not prone to sinking in the middle of long-distance transmission, thereby making the carrier conveying more stable and reliable. In addition, the automatic cleaning device of the application uses a reasonable front and rear cleaning process setting to clean the parts to be cleaned more thoroughly and achieve a better cleaning effect.

[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural schematic diagram of the cleaning mechanism of the automatic carrier cleaning device according to an embodiment of the utility model.

[0019] Figure 2 This is a schematic structural diagram of the cleaning mechanism of the automatic carrier cleaning device according to an embodiment of the utility model without the outer shell.

[0020] Figure 3 It is a partial structural schematic diagram of the drying mechanism of the automatic carrier cleaning device according to an embodiment of the utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the drying component of the automatic carrier cleaning device according to an embodiment of the utility model.

[0022] Figure 5 It is a schematic block diagram of the overall functional units of the automatic carrier cleaning device according to an embodiment of the utility model.

[0023] Figure 6 This is a partial piping schematic diagram of the drying mechanism of the automatic carrier cleaning device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] See also Figure 1 and Figure 5 The present embodiment provides an automatic carrier cleaning device, which includes: a cleaning mechanism 100 and a drying mechanism 200, wherein the drying mechanism 200 is arranged at the discharge end of the cleaning mechanism 100; the cleaning mechanism 100 is used to perform a multi-step cleaning process on the carrier to be cleaned and the PCB board thereon, and the drying mechanism 200 is used to dry the carrier again after cleaning.

[0032] Since the cleaning section and drying section of the automatic carrier cleaning device are relatively long, in this embodiment, the cleaning mechanism 100 and the drying mechanism 200 are designed as two-section separated structures, so as to facilitate transportation, assembly and maintenance. It is understandable that in other embodiments, the cleaning mechanism 100 and the drying mechanism 200 may also be an integral structure.

[0033] The cleaning mechanism 100 includes: a first spray cleaning component 14, an ultrasonic cleaning component 15, a second spray cleaning component 16, a first isolation component 17, a third spray cleaning component 18 and a second isolation component 19 arranged in sequence according to the carrier transfer direction; a mesh belt component 30 for conveying the carrier forward in sequence according to the cleaning process, a first liquid storage tank 101 for providing cleaning liquid to the first spray cleaning component 14 and the ultrasonic cleaning component 15 and the second spray cleaning component 16, and a second liquid storage tank 102 for providing cleaning liquid to the third spray cleaning component 18.

[0034] Please refer again Figure 1 and Figure 2The cleaning mechanism 100 also includes a frame 11 and a shell 12 connected to the frame 11. The first spray cleaning component 14, the ultrasonic cleaning component 15, the second spray cleaning component 16, the first isolation component 17, the third spray cleaning component 18, the second isolation component 19 and the mesh belt component 30 are all connected to the frame 11 and located in the shell 12. The frame 11 is used to support and fix the shell 12 and the internal cleaning functional unit. The frame 11 and the shell 12 together enclose an internal cleaning processing space. Since waste gas and waste liquid are generated during the cleaning process, a plurality of condensing coils 13 are also provided on the top of the shell 12 to cool down the exhaust gas and steam that can be discharged and then discharge them.

[0035] The mesh belt assembly 30 includes: a front end synchronous wheel module and a rear end synchronous wheel module connected to the frame 11, a mesh belt arranged on the front end synchronous wheel module and the rear end synchronous wheel module, and a plurality of supporting roller modules arranged between the front end synchronous wheel module and the rear end synchronous wheel module. The carrier to be cleaned is transported by the mesh belt to sequentially pass through the first spray cleaning assembly 14, the ultrasonic cleaning assembly 15, the second spray cleaning assembly 16, the first isolation assembly 17, the third spray cleaning assembly 18 and the second isolation assembly 19 to complete the cleaning process in each step. The front end synchronous wheel module and the rear end synchronous wheel module both include a shaft and a synchronous wheel connected to the shaft, and the supporting roller module includes a connecting rod and a roller rotatably connected to the connecting rod. The roller is used to support the middle part of the mesh belt so that the conveying plane of the mesh belt remains roughly horizontal. At the same time, the cleaning equipment of this embodiment improves the traditional synchronous belt conveyor into a mesh belt conveyor. The mesh belt itself has better rigidity, so that the carrier plate will not drop in the middle due to the weight of the mesh belt during the cleaning and drying transmission process, affecting the alignment angle with the cleaning component and reducing the cleaning effect. The carrier plate transmission is more stable and reliable, and it is not easy to get stuck.

[0036] Please refer again Figure 5The second liquid storage tank 102 includes: a first water washing tank 1021, a second water washing tank 1022 and a third water washing tank 1023 which are arranged in sequence in front and behind; the third water washing tank 1023, the second water washing tank 1022 and the first water washing tank 1021 form a high and low overflow structure in sequence, that is, the external cleaning liquid is first directly sent into the third water washing tank 1023, and when the third water washing tank 1023 is full, it will overflow from the top to the second water washing tank 1022. Similarly, the cleaning liquid in the first water washing tank 1021 overflows from the second water washing tank 1022. Specifically, the heights of the top overflow ports of the third water washing tank 1023, the second water washing tank 1022 and the first water washing tank 1021 are reduced in sequence, so as to form a multi-stage overflow structure. The third water washing tank 1023 provides cleaning liquid for the fourth-stage spray water washing unit 184 and the third-stage spray water washing unit 183 , the second water washing tank 1022 provides cleaning liquid for the second-stage spray water washing unit 182 , and the first water washing tank 1021 provides cleaning liquid for the first-stage spray water washing unit 181 .

[0037] The first spray cleaning assembly 14 includes a plurality of water spray pipes relatively distributed in an upper and lower direction. The water spray pipes include a pipe body and a plurality of spray heads with nozzles connected to the pipe body, which are used for preliminary water washing of the PCB board placed on the carrier board.

[0038] The ultrasonic cleaning component 15 includes: a first-stage ultrasonic cleaning unit 151, a second-stage ultrasonic cleaning unit 152, a third-stage ultrasonic cleaning unit 153 and a fourth-stage ultrasonic cleaning unit 154, which are arranged in sequence in the conveying direction. Among them, the first-stage ultrasonic cleaning unit 151 adopts a 28Hz single-frequency 3KW ultrasonic cleaning module, the second-stage ultrasonic cleaning unit 152 adopts a 28Hz single-frequency 3KW ultrasonic cleaning module, and the third-stage ultrasonic cleaning unit 153 and the fourth-stage ultrasonic cleaning unit 154 both adopt a 40Hz single-frequency 3KW ultrasonic cleaning module. The above-mentioned ultrasonic module also includes a liquid storage tank for storing cleaning liquid, the cleaning liquid of the liquid storage tank comes from the first liquid storage tank 101, and the PCB board on the carrier board is immersed in the liquid storage tank when passing through the ultrasonic cleaning component 15, and the ultrasonic wave acts on the cleaning liquid, and the cleaning liquid acts on the PCB board, thereby realizing ultrasonic vibration cleaning.

[0039] The second spray cleaning assembly 16 includes: a first spray unit 161 and a second spray unit 162. The first spray unit 161 and the second spray unit 162 are arranged side by side front to back, and each includes a plurality of groups of spray bars distributed in an upper and lower position. The cleaning liquid transported by the first liquid storage tank 101 is ejected from the spray holes on the spray bars to the surface of the PCB board.

[0040] The first isolation component 17 includes: a wind shear isolation unit 171 and an isolation section 172, and the isolation section 172 is located behind the wind shear isolation unit 171. The wind shear isolation unit 171 includes a plurality of wind knives correspondingly arranged up and down, which are used to form a wind shear surface to blow air to the upper and lower surfaces of the PCB. The isolation section 172 is a cavity structure between the third spray cleaning component 18 and the wind shear isolation unit 171. At this stage, no treatment is performed on the PCB board, and it mainly isolates the wind shear isolation unit 171 from the third spray cleaning component 18.

[0041] The third spray cleaning assembly 18 includes: a primary spray washing unit 181, a secondary spray washing unit 182, a tertiary spray washing unit 183 and a quaternary spray washing unit 184. The primary spray washing unit 181, the secondary spray washing unit 182, the tertiary spray washing unit 183 and the quaternary spray washing unit 184 each include a plurality of spray bars with nozzles disposed in an upper and lower position, each spray bar is provided with a plurality of evenly distributed spray holes, and the spray holes are provided with nozzles for spraying cleaning liquid onto the surface of the PCB board.

[0042] The second isolation component 19 has the same structure as the first isolation component 17 , which will not be described in detail here. Please refer to the description of the first isolation component 17 above for details.

[0043] Please refer again Figure 4 and Figure 5 The drying mechanism 200 includes: a wind shear component 24, a drying component 25, an isolation component and a cooling component 26 which are arranged in sequence; wherein, the drying component 25 includes: a primary drying unit 251, a secondary drying unit 252 and a tertiary drying unit 253.

[0044] The wind shear assembly 24 includes: a primary wind shear unit 241 and a secondary wind shear unit 242 , and both the primary wind shear unit 241 and the secondary wind shear unit 242 include a plurality of groups of wind shear blades disposed opposite to each other in an upper and lower direction.

[0045] like Figure 6 As shown, the first-stage drying unit 251, the second-stage drying unit 252 and the third-stage drying unit 253 have the same structure, and all include: a plurality of drying air knife groups arranged in an upper and lower relative manner and a pipeline unit for providing hot air flow to the drying air knife group 2511, the pipeline unit includes an air supply pipe, and an air filter 2512, a fan 2513, an air heating package 2514, a HEPA filter 2515, a cooling unit 2516 and a simple ball valve 2517 arranged on the air supply pipe in sequence. The cooling unit 2516 is also provided with a temperature control switch, and the two ends of the HEPA filter 2515 are also provided with a differential pressure gauge.

[0046] Similarly, please refer to Figure 4 The drying mechanism 200 includes a base 21, a shield 22 connected to the base 21, a condensing coil 23 arranged on the top of the shield 22, the wind shear component 24, the drying component 25, the isolation component and the cooling component 26 are all arranged in the shield 22, and the carrier plate is transported to each drying process link through the mesh belt conveyor component. The end 20 of the drying mechanism 200 is a discharge port.

[0047] The automatic carrier cleaning equipment of this embodiment realizes a thorough cleaning and drying process of the carrier through reasonable front and back cleaning process settings, specifically multiple ultrasonic cleanings, multi-stage water washings and multiple spray washings combined with wind cutting and drying components, which effectively improves product quality and reduces safety risks in use.

[0048] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. An automatic carrier cleaning device, characterized in that: It comprises: a cleaning mechanism and a drying mechanism, wherein the drying mechanism is arranged at the discharge end of the cleaning mechanism; The cleaning mechanism includes: a first spray cleaning component, an ultrasonic cleaning component, a second spray cleaning component, a first isolation component, a third spray cleaning component and a second isolation component which are arranged in sequence according to the carrier transfer direction; a mesh belt component for conveying the carrier forward in sequence according to the cleaning process, a first liquid storage tank for providing cleaning liquid to the first spray cleaning component and the second spray cleaning component, and a second liquid storage tank for providing cleaning liquid to the third spray cleaning component.

2. The automatic carrier cleaning device according to claim 1, characterized in that: The cleaning mechanism also includes a frame and a shell connected to the frame, the first spray cleaning component, the ultrasonic cleaning component, the second spray cleaning component, the first isolation component, the third spray cleaning component, the second isolation component and the mesh belt component are all connected to the frame and are located in the shell, the mesh belt component includes: a front end synchronous wheel module and a rear end synchronous wheel module connected to the frame, a mesh belt arranged on the front end synchronous wheel module and the rear end synchronous wheel module, and a plurality of supporting roller modules arranged between the front end synchronous wheel module and the rear end synchronous wheel module, the carrier is transported by the mesh belt to pass through the first spray cleaning component, the ultrasonic cleaning component, the second spray cleaning component, the first isolation component, the third spray cleaning component and the second isolation component in sequence to complete each step of the cleaning process.

3. The automatic carrier cleaning device according to claim 2, characterized in that: The third spray cleaning assembly includes: a first-level spray water washing unit, a second-level spray water washing unit, a third-level spray water washing unit and a fourth-level spray water washing unit which are arranged in sequence front and back along the carrier conveying direction; the first-level spray water washing unit, the second-level spray water washing unit, the third-level spray water washing unit and the fourth-level spray water washing unit each include a plurality of groups of spray bars which are arranged in an upper and lower position, and nozzles are provided on the spray bars.

4. The automatic carrier cleaning device according to claim 3, characterized in that: The second liquid storage tank includes: a first water washing tank, a second water washing tank and a third water washing tank which are arranged in sequence in front and behind; the third water washing tank, the second water washing tank and the first water washing tank form high and low overflow structures in sequence, the third water washing tank conveys cleaning liquid to the four-stage spray water washing unit and the three-stage spray water washing unit, the second water washing tank provides cleaning liquid to the two-stage spray water washing unit, and the first water washing tank provides cleaning liquid to the one-stage spray water washing unit.

5. The automatic carrier cleaning device according to claim 4, characterized in that: The ultrasonic cleaning component includes: a first-level ultrasonic cleaning unit, a second-level ultrasonic cleaning unit, a third-level ultrasonic cleaning unit, and a fourth-level ultrasonic cleaning unit, which are arranged in sequence front and back along the carrier conveying direction; the ultrasonic frequency of the first-level ultrasonic cleaning unit and the second-level ultrasonic cleaning unit is 28 Hz, and the ultrasonic frequency of the third-level ultrasonic cleaning unit and the fourth-level ultrasonic cleaning unit is 40 Hz.

6. The automatic carrier cleaning device according to claim 5, characterized in that: The first isolation component includes: a wind shear isolation unit and an isolation segment, and the wind shear isolation unit is located in front of the isolation segment.

7. The automatic carrier cleaning device according to claim 6, characterized in that: The second spray cleaning assembly includes: a first spray unit and a second spray unit, and the first spray unit and the second spray unit both include a plurality of groups of water spray pipes that are relatively distributed up and down.

8. The automatic carrier cleaning device according to any one of claims 1 to 7, characterized in that: The drying mechanism comprises: a wind shear component, a drying component, an isolation component and a cooling component which are arranged in sequence in front and behind; wherein, the drying component comprises: a primary drying unit, a secondary drying unit and a tertiary drying unit.

9. The automatic carrier cleaning device according to claim 8, characterized in that: The wind shear assembly comprises: a primary wind shear unit and a secondary wind shear unit, and both the primary wind shear unit and the secondary wind shear unit comprise a plurality of groups of wind shear knives which are arranged opposite to each other in an upper and lower direction.

10. The automatic carrier cleaning device according to claim 9, characterized in that: The first-stage drying unit, the second-stage drying unit and the third-stage drying unit have the same structure, and all include: a plurality of drying air knife groups arranged in an upper and lower direction and a pipeline unit for providing hot air flow to the drying air knife groups, the pipeline unit includes an air supply pipe, and an air filter, a fan, an air heating pack, a HEPA filter and a simple ball valve arranged in sequence on the air supply pipe.

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