CN216859409U

CN216859409U - Sand blasting machine for PCB processing

Info

Publication number: CN216859409U
Application number: CN202122480665.5U
Authority: CN
Inventors: 陈德和
Original assignee: Universal PCB Equipment Co Ltd
Current assignee: Universal PCB Equipment Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-07-01
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a sand blasting machine for processing a PCB (printed Circuit Board), which comprises a rack and a separation circulating assembly, wherein the rack is provided with a plurality of supporting rods; a sand blasting inner cavity is arranged in the frame and comprises a sand blasting chamber and a cleaning chamber; the separation circulation subassembly deposits the container including keeping in container, solid-liquid separator, sandblast stirred vessel and separation medium, the first input of the container of keeping in with the recovery exit end intercommunication of purge chamber, the first output of the container of keeping in with solid-liquid separator intercommunication, solid-liquid separator respectively with sandblast stirred vessel the separation medium deposits the container intercommunication, sandblast stirred vessel with sandblast chamber intercommunication. The technical scheme of the utility model can realize the recycling of the medium, reduce the loss consumption of the sand blasting medium, save water resource and sand blasting medium resource and reduce the cost.

Description

Sand blasting machine for PCB processing

Technical Field

The utility model relates to the technical field of PCB processing, in particular to a sand blasting machine for PCB processing.

Background

Printed circuit boards, also known as printed circuit boards, are providers of electrical connections for electronic components; it is often referred to as "PCB", where the entirety of the PCB is known as the Printed Circuit Board. The processing of the printed circuit board usually uses a sand blasting machine, and the sand blasting machine is widely used for dry film, wet film, green oil, gold (tin/silver) immersion, AOI and line pretreatment processes in the circuit board processing industry.

However, the media loss applied by the sand blasting in the production and processing of the existing PCB sand blasting machine is too serious, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a sand blasting machine for PCB processing, which aims to realize the recycling of media, reduce the loss and consumption of the media and reduce the cost.

The above problems to be solved by the present invention are realized by the following technical solutions:

a sand blasting machine for PCB processing comprises a frame and a separation circulating assembly; a sand blasting inner cavity is arranged in the frame and comprises a sand blasting chamber and a cleaning chamber; the separation circulation subassembly deposits the container including keeping in container, solid-liquid separator, sandblast stirred vessel and separation medium, the first input of the container of keeping in with the recovery exit end intercommunication of purge chamber, the first output of the container of keeping in with solid-liquid separator intercommunication, solid-liquid separator respectively with sandblast stirred vessel the separation medium deposits the container intercommunication, sandblast stirred vessel with sandblast chamber intercommunication.

Preferably, the separation medium storage container comprises a water washing container and a sewage precipitation container, and the water washing container and the sewage precipitation container are respectively communicated with the solid-liquid separator.

Preferably, a first recovery container is arranged in the water washing container; a second liquid storage device is arranged in the sewage sedimentation container; the first input end of the temporary storage container is communicated with the recycling outlet end of the cleaning chamber, the temporary storage container is communicated with the first input end of the solid-liquid separator through a first conveying pipe, the first output end of the solid-liquid separator is communicated with the sand blasting stirring container, the second output end of the solid-liquid separator is communicated with the first input end of the first recycling container, and the third output end of the solid-liquid separator is communicated with the first input end of the second liquid storage device.

Preferably, the washing container further comprises a first infusion driving member, a first end of the first infusion driving member is communicated with the first recycling container, and a second end of the first infusion driving member is communicated with a second input end of the temporary storage container through a second conveying pipe.

Preferably, the sewage sedimentation container includes two at least second infusion driving pieces, the first end of second infusion driving piece with the second reservoir intercommunication, the second end of second infusion driving piece respectively through first output tube, second output tube with sandblast stirred vessel intercommunication.

Preferably, the sand blasting machine for PCB processing further comprises an upper conveying winch group and a lower conveying winch group, and the upper conveying winch group and the lower conveying winch group are located between the sand blasting inner cavities; a conveying gap is formed between the upper conveying winch group and the lower conveying winch group, and the conveying gap is used for conveying the PCB; go up and carry rumble group including two at least rumble pieces of going upward, it is equipped with first clearance to go upward between the rumble piece, the width in first clearance is greater than predetermineeing the width value.

Preferably, carry rumble group down including at least two rumbles that rotate, it is equipped with the second clearance to rotate between the rumbles, the second clearance is used for guiding the sandblast medium for the sandblast medium passes the second clearance and carry to carry the clearance.

Preferably, the second gap and the first gap are in a misaligned arrangement.

Preferably, the sandblaster for PCB processing further comprises an upper sandblasting assembly and a lower sandblasting assembly, the upper sandblasting assembly being located above the upper transport rumble set, and the upper sandblasting assembly ejecting a sandblasting medium towards the first gap; the lower sanding assembly is positioned below the lower set of conveyor sheaves and the lower sanding assembly ejects a blasting media toward the second gap.

Preferably, a supporting inner plate is arranged in the frame and used for supporting and connecting the upper sand blasting assembly and the lower sand blasting assembly; and reinforcing ribs are arranged on the supporting inner plate.

Has the advantages that: according to the technical scheme, the sand blasting chamber and the cleaning chamber are designed in a chamber-divided mode, so that the PCB can be subjected to sand blasting treatment as soon as possible after being subjected to sand blasting, and the processing quality of the PCB is guaranteed; still deposit the liquid after the water is clear through the container of keeping in of separation circulation subassembly simultaneously, then carry to solid-liquid separator and carry out to separate out impurity water and sandblast medium, and carry impurity water to separation medium deposit the container and carry out retreatment once more in order to be used next time, carry the sandblast medium after the separation to sandblast stirred vessel simultaneously and handle in order to be used next time, thereby realize the circulation of aqueous clear liquid medium and recycle, reduce the loss consumption of sandblast medium, can also water economy resource and sandblast medium resource simultaneously, the cost is reduced, realize the automation of equipment.

Drawings

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

Fig. 1 is a schematic structural diagram of an embodiment of a sandblasting machine for PCB processing according to the present invention.

FIG. 2 is a schematic structural diagram of a side view part of an embodiment of a sandblasting machine for PCB processing according to the present invention.

FIG. 3 is an assembled schematic view of a lower feed roll set of one embodiment of a sander for PCB processing according to the present invention.

Fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Fig. 5 is a schematic structural diagram of a reinforcing rib of an embodiment of a sandblasting machine for PCB processing according to the present invention.

Fig. 6 is a schematic structural diagram of a sand water supply device of an embodiment of a sand blasting machine for PCB processing according to the present invention.

The reference numbers illustrate:

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a sand blasting machine for PCB processing.

As shown in fig. 1 and 6, in an embodiment of the present invention, the sandblasting machine for PCB processing; comprises a frame 1 and a separation circulating component; a sand blasting inner cavity is arranged in the frame 1, and comprises a sand blasting chamber 11 and a cleaning chamber 12; the separation circulation subassembly includes that the container 71, solid-liquid separator 73, sandblast stirred vessel 8 and the separation medium of keeping in deposit the container, the first input of the container 71 of keeping in with the recovery exit end intercommunication of purge chamber 12, the first output of the container 71 of keeping in with solid-liquid separator 73 intercommunication, solid-liquid separator 73 respectively with sandblast stirred vessel 8 the separation medium deposits the container intercommunication, sandblast stirred vessel 8 with sandblast room 11 intercommunication.

According to the technical scheme, the sand blasting treatment can be carried out on the PCB as soon as possible after the PCB is processed and subjected to sand blasting through the chamber-divided design of the sand blasting chamber and the cleaning chamber, so that the processing quality of the PCB is guaranteed; still deposit the liquid after the water is clear through the container of keeping in of separation circulation subassembly simultaneously, then carry to solid-liquid separator and carry out to separate out impurity water and sandblast medium, and carry impurity water to separation medium deposit the container and carry out retreatment once more in order to be used next time, carry the sandblast medium after the separation to sandblast stirred vessel simultaneously and handle in order to be used next time, thereby realize the circulation of aqueous clear liquid medium and recycle, reduce the loss consumption of sandblast medium, can also water economy resource and sandblast medium resource simultaneously, the cost is reduced, realize the automation of equipment.

Specifically, in some embodiments, the separation medium storage container includes a water washing container 72 and a sewage settling container 74, the water washing container 72 and the sewage settling container 74 being respectively communicated with the solid-liquid separator 73; the conveying water washing medium through the water washing container can realize the water washing medium and the sand blasting stirring dissolving medium of the sand blasting machine and separate the sewage medium through the sewage settling container so as to realize the extraction of a relatively clean liquid medium, thereby effectively utilizing various resources, improving the utilization rate and reducing the cost.

In some embodiments, a stirring mechanism, such as a stirring rod, a stirring motor, etc., is arranged in the sand blasting stirring container; and a conveying mechanism, such as a conveying pipeline, a conveying pump and the like, is also arranged in the sand blasting stirring container.

Specifically, in some embodiments, as shown in fig. 6, a first recovery vessel 721 is disposed within the water washing vessel 72; a second reservoir 742 is arranged in the sewage settling container 74; a first input end of the temporary storage container 71 is communicated with a recovery outlet end of the cleaning chamber 12, the temporary storage container 71 is communicated with a first input end of the solid-liquid separator 73 through a first delivery pipe 711, a first output end of the solid-liquid separator 73 is communicated with the blasting agitation vessel 8, a second output end of the solid-liquid separator 73 is communicated with a first input end of the first recovery container 721, and a third output end of the solid-liquid separator 73 is communicated with a first input end of the second reservoir 742.

A first recovery pipe 732 and a second recovery pipe 733 are arranged on the second reservoir 742, the first recovery pipe 732 and the second recovery pipe 733 are arranged in parallel and form a common delivery end, a first end of the common delivery end is communicated with a first input end of the second reservoir 742, and a first end of the common delivery end is communicated with a third output end of the solid-liquid separator 73.

Specifically, the water washing container 72 further includes a first infusion driving element 721, a first end of the first infusion driving element 721 is communicated with the first recycling container, and a second end of the first infusion driving element 721 is communicated with a second input end of the temporary storage container 711 through a second delivery pipe 723.

Specifically, the waste water sedimentation container 74 includes at least two second infusion drivers 741, a first end of the second infusion drivers 741 is communicated with the second reservoir 742, and a second end of the second infusion drivers 741 is communicated with the blasting agitation container 8 through a first output pipe 731 and a second output pipe 734 respectively.

The second infusion driving member 741 and the first infusion driving member 721 are injection pumps.

Recovering the sand water on the residual plate surface of the water washing section in the sand blasting, and then pumping the sand water into a separator for sand-water separation, so that the sand material flows into a stirring container to achieve the sand saving function and reduce the sand material loss; the clean water separated by the separator beside the stirring container is pumped into the water washing container through the temporary storage container, and then the water washing container is used for spraying by the sand blasting water washing section.

Specifically, as shown in fig. 1-4, the sand blasting machine for PCB processing further comprises an upper conveying winch group 2 and a lower conveying winch group 3, wherein the upper conveying winch group 2 and the lower conveying winch group 3 are both located between the sand blasting inner cavities; a conveying gap is formed between the upper conveying winch group 2 and the lower conveying winch group 3 and is used for conveying the PCB; go up and carry rumble group 2 and include two at least rumble pieces 21 that go upward, upward be equipped with first clearance 22 between the rumble piece 21, the width of first clearance 22 is greater than preset width value.

The PCB to be processed by sand blasting is stably conveyed by adopting an upper conveying roller group and a lower conveying roller group to form a conveying mode; this application is greater than predetermined width value through the last width of going between the rumble piece of carrying in the rumble group again, has ensured that PCB can have more spacious space sandblast processing, avoids PCB to be full of the pond effect that the sand water formed in carrying the rumble group at last to can make the sand water of pond effect discharge toward both sides from the PCB face fast, and then improve the stability of treating the PCB processing of processing.

Wherein, in some embodiments, predetermine the numerical value minimum of width value and all be greater than the width value of the PCB that treats processing in the production process, that is to say, the width numerical value in first clearance all is greater than the width value of the PCB that treats processing in the production process, guaranteed the smoothness nature of sandblast, avoid PCB to fill the pond effect that the sand water formed in last transport rumble group to can make the sand water of pond effect discharge toward both sides on the PCB face fast, and then improve the stability of the PCB processing of treating processing.

The first gap 22 is used to guide the blasting medium, that is, the blasting medium is sprayed through the first gap 22 to perform the spraying process on the PCB.

In the embodiment, the blasting chamber 11 and the cleaning chamber 12 are sequentially distributed in the conveying direction of the PCB in the blasting inner cavity; and both the upper set of conveyor sheaves 2 and the lower set of conveyor sheaves 3 can span across the blast chamber 11 and the cleaning chamber 12.

Specifically, in some embodiments, the upper feeding roller group 2 further comprises a first driving member and a first rotating rod in driving connection with the first driving member, the upper feeding roller sheet 21 is fixedly connected to the first rotating rod, and the driving rotating direction of the first rotating rod is the same as the PCB conveying direction.

In some embodiments, the first driving part includes a first driving motor, a first driving wheel set and a first driving chain, the first driving wheel set is driven to rotate by the rotation of the first driving motor, and the first driving chain is pulled to rotate by the rotation of the first driving wheel set, so as to drive the first rotating rod to rotate.

In particular, in some embodiments, the lower set of transport rumbles 3 comprises at least two rotating rumbles between which a second gap 32 is provided, said second gap 32 being used to guide the blasting medium such that the blasting medium passes through said second gap 32 and is transported to said transport gap.

Wherein, a protective adhesive layer 31 is arranged on the rotating roller; wherein, the protective glue layer 31 is a pvc glue layer. That is, the rubber coating rumbles are selected for use to rotate the rumbles.

Wherein, carry rumble group 3 down and still include second drive disk assembly, second drive disk assembly includes conveyor motor, chain, final drive shaft to and by the transport face that rotates the rumble and constitute, be equipped with the gear on rotating the rumble, the chain respectively with conveyor motor and final drive shaft transmission are connected, final drive shaft with gear drive on rotating the rumble is connected, drives the transport face transmission that rotates the rumble and constitute.

Specifically, in some embodiments, the second gap 32 and the first gap 22 are in a misaligned arrangement; that is, the vertical plane of the path of the second gap 32 and the vertical plane of the path of the first gap 22 are not in the same vertical direction, so that the time for the blasting medium to perform the blasting impact on the PCB in the same time can be effectively staggered, and the PCB can be prevented from being damaged.

Specifically, in some embodiments, the sander for PCB processing further comprises an upper sanding assembly 4 and a lower sanding assembly 6, the upper sanding assembly 4 being positioned above the upper conveyor shoe set 2, and the upper sanding assembly 4 ejecting a blasting media toward the first gap 22; the lower sanding assembly 6 is located below the lower set of conveyor sheaves 3 and the lower sanding assembly 6 sprays the blasting media toward the second gap 32.

In the embodiment, the upper sand blasting assembly 4 and the lower sand blasting assembly 6 both comprise a spraying frame, and a spraying motor, a digital display pressure gauge and a PLC (programmable logic controller) which are connected with the spraying frame; the digital display pressure gauge is arranged on the spray frame and used for detecting the spray pressure in the upper spray frame and the lower spray frame; the digital display pressure gauge and the spraying motor are further connected with the PLC, and the PLC is further used for adjusting the frequency of the spraying motor according to the digital display pressure gauge so that the pressure in the upper spraying frame and the pressure in the lower spraying frame can keep constant.

Specifically, as shown in fig. 1, a support inner plate 10 is arranged in the frame 1, and the support inner plate 10 is used for supporting and connecting the upper sand blasting assembly 4 and the lower sand blasting assembly 6; the supporting inner plate 10 is provided with a reinforcing rib 5; the reinforcing ribs can prevent the frame from generating overlarge deformation, and the service life of equipment and the production and processing fluency are influenced.

As shown in fig. 5, in some embodiments, the reinforcing rib 5 includes a buffer flap 52 and at least two straight plates 51, two side ends of the buffer flap 52 are respectively fixedly connected with side ends of the two straight plates 51, sides of the straight plates 51 are connected to the side walls of the supporting inner plate 10, and a buffer cavity is arranged between the buffer flap 52 and the side walls of the supporting inner plate 10; the stability of support to last sandblast subassembly and lower sandblast subassembly is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A sand blasting machine for PCB processing is characterized by comprising a frame and a separation circulating assembly; a sand blasting inner cavity is arranged in the frame and comprises a sand blasting chamber and a cleaning chamber; the separation circulation subassembly deposits the container including keeping in container, solid-liquid separator, sandblast stirred vessel and separation medium, the first input of the container of keeping in with the recovery exit end intercommunication of purge chamber, the first output of the container of keeping in with solid-liquid separator intercommunication, solid-liquid separator respectively with sandblast stirred vessel the separation medium deposits the container intercommunication, sandblast stirred vessel with sandblast chamber intercommunication.

2. The sandblasting machine for PCB processing as recited in claim 1, wherein the separation medium storage container comprises a water washing container and a sewage settling container, and the water washing container and the sewage settling container are respectively communicated with the solid-liquid separator.

3. The sandblasting machine for PCB processing as recited in claim 2, wherein a first recovery container is provided in the washing container; a second liquid storage device is arranged in the sewage sedimentation container; the first input end of the temporary storage container is communicated with the recycling outlet end of the cleaning chamber, the temporary storage container is communicated with the first input end of the solid-liquid separator through a first conveying pipe, the first output end of the solid-liquid separator is communicated with the sand blasting stirring container, the second output end of the solid-liquid separator is communicated with the first input end of the first recycling container, and the third output end of the solid-liquid separator is communicated with the first input end of the second liquid storage device.

4. A sander for PCB processing as set forth in claim 3, wherein said water wash container further comprises a first infusion drive member, a first end of said first infusion drive member being in communication with said first recovery container, a second end of said first infusion drive member being in communication with a second input of said staging container via a second delivery tube.

5. The sandblasting machine for PCB processing as recited in claim 3, wherein the sewage settling vessel comprises at least two second infusion drives, a first end of the second infusion drive being in communication with the second reservoir, and a second end of the second infusion drive being in communication with the sandblasting agitation vessel through a first output tube and a second output tube, respectively.

6. The sandblasting machine for PCB processing as claimed in claim 3, further comprising an upper transport rumble set and a lower transport rumble set, both of which are located between the sandblasting inner cavities; a conveying gap is formed between the upper conveying winch group and the lower conveying winch group, and the conveying gap is used for conveying the PCB; go up and carry rumble group including two at least rumble pieces that go upward, go upward and be equipped with first clearance between the rumble piece, the width in first clearance is greater than preset width value.

7. The sander for PCB processing of claim 6, wherein said lower set of transport rumbles comprises at least two rotating rumbles with a second gap disposed therebetween, said second gap for guiding a blasting medium such that blasting medium passes through said second gap and is transported to said transport gap.

8. The sander for PCB processing of claim 7, wherein the second gap and the first gap are in a misaligned arrangement.

9. The sander for PCB processing of claim 7, further comprising an upper sanding assembly and a lower sanding assembly, wherein the upper sanding assembly is located above the upper set of conveyor sheaves and the upper sanding assembly jets a blasting media toward the first gap; the lower sanding assembly is positioned below the lower set of conveyor sheaves and the lower sanding assembly ejects a blasting media toward the second gap.

10. The sandblasting machine for PCB processing as claimed in claim 9, wherein a supporting inner plate is provided in the frame, the supporting inner plate is used for supporting and connecting the upper sandblasting assembly and the lower sandblasting assembly; and reinforcing ribs are arranged on the supporting inner plate.