CN215916776U

CN215916776U - A recovery unit for hot air solder leveling workshop

Info

Publication number: CN215916776U
Application number: CN202122571981.3U
Authority: CN
Inventors: 关学刚; 龙志敏
Original assignee: Jishui Zhongdianke Microwave Technology Co ltd
Current assignee: Jishui Zhongdianke Microwave Technology Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-01
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a recovery device for a tin spraying workshop, which comprises a hot tin pool, wherein two air suction covers are welded on the top surface of the hot tin pool, and metal wire meshes are welded on the opposite surfaces of the two air suction covers; according to the tin particle adsorption type tin particle recovery device, two dust absorption fans on a U-shaped frame are opened through a control panel, so that the suction hoods on two sides of the top surface of a hot tin pool absorb tin particles diffused in air by taking U-shaped metal wire nets welded in opposite surfaces as adsorption openings, the suction pipes communicated with the suction hoods by end pipes guide tin-containing gas into the air guide pipes, and then the air guide pipes penetrate into a collection box, so that a plurality of activated carbon filter plates fixedly arranged on the surface of a mounting support plate filter the tin-containing gas until clean air is discharged from an exhaust pipe.

Description

A recovery unit for hot air solder leveling workshop

Technical Field

The utility model relates to the field of circuit board processing, in particular to a recovery device for a tin spraying workshop.

Background

The tin spraying is to soak the circuit board in the molten tin-lead, after the circuit board surface adheres enough tin-lead, then use the hot air to pressurize and scrape the surplus tin-lead, the circuit board welded area will stick a layer of tin-lead of appropriate thickness after the tin-lead is cooled, this is the rough procedure of the tin spraying process, the surface treatment technology of PCB, apply the most at present is the tin spraying process, also called hot air leveling technology, spray a layer of tin on the pad, in order to strengthen the conductivity and weldability of the PCB pad.

In the existing spray welding workshop for the circuit board, hot air leveling treatment needs to be carried out after the circuit board is taken out of a hot tin pool, so that redundant tin on the surface of the circuit board is taken away by hot air to form tin particles diffused in the air, the production environment of tin spraying is polluted, and the personal health of the production environment is not facilitated.

Therefore, the recovery device for the tin spraying workshop has the advantage of tin particle recovery, and further solves the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a recovery device for a tin spraying workshop.

In order to achieve the purpose, the utility model adopts the following technical scheme: a recovery device for a tin spraying workshop comprises a hot tin pool, wherein two air suction covers are welded on the top surface of the hot tin pool, metal wire nets are welded on the opposite surfaces of the two air suction covers, the back surfaces of the two air suction covers are communicated with an air suction pipe through a plurality of end pipes, the middle position of the air suction pipe is connected with a wind guide pipe through a tee joint, a dust suction fan is arranged on the surface of the wind guide pipe, a U-shaped frame is welded on the side surface of the lower portion of the hot tin pool, a collecting box is fixedly arranged on the top surface of the U-shaped frame, the dust suction fan is fixedly connected with the U-shaped frame through bolts, one end of the wind guide pipe is communicated with a collecting box, a mounting support plate is fastened on the top surface of the collecting box through flat-head screws, a plurality of active carbon filter plates are fixedly arranged on the side of the mounting support plate facing the collecting box, the plurality of active carbon filter plates all extend into the collecting box, and an exhaust pipe is communicated with the surface of the lower portion of the collecting box, and an air blowing plate box is welded above the two air suction covers.

As a further description of the above technical solution: a plurality of air outlet nozzles are evenly seted up to air-blast board bottom surface, and the support column has all been welded in the four corners of air-blast board bottom surface, the one end of exhaust pipe has the blast pipe through flange intercommunication, and the surface mounting of blast pipe has the air-blower, air-blower one side is located blast pipe surface intercommunication and has a plurality of branch pipes, and the one end of a plurality of branch pipes all communicates with air-blast board case.

As a further description of the above technical solution: the branch pipes are of L-shaped structures, and the branch pipes are arranged on the surface of the air supply pipe in a group with equal distance in pairs.

As a further description of the above technical solution: the air suction cover, the air suction pipe, the air guide pipe and the dust collection fan are arranged in two groups, and the two groups of air suction covers, the air suction pipe, the air guide pipe and the dust collection fan are symmetrical about a horizontal centerline of the hot tin bath.

As a further description of the above technical solution: two the cover that induced drafts is U type structure, and the welding of the face in opposite directions of two covers that induced drafts has the wire mesh of U type structure.

As a further description of the above technical solution: the side wall surface of the hot tin pool is provided with a control panel, and the output end of the control panel is respectively electrically connected with the air blower and the dust collection fan.

As a further description of the above technical solution: the top surface of the collecting box is provided with an opening corresponding to the mounting support plate, the periphery of the opening is provided with a plurality of thread grooves, and the edge of the mounting support plate facing to one surface of the collecting box is bonded with a sealing frame strip.

The utility model has the following beneficial effects:

according to the utility model, two dust suction fans on the U-shaped frame are opened through the control panel, so that the suction hoods at two sides of the top surface of the hot tin pool absorb tin particles diffused in air by taking U-shaped metal wire nets welded in opposite surfaces as adsorption ports, and then tin-containing gas is introduced into the air guide pipe by the suction pipes of the suction hoods communicated by the end pipes and then is penetrated into the collection box by the air guide pipe, so that a plurality of activated carbon filter plates fixedly arranged on the surface of the mounting support plate filter the tin-containing gas until clean air is discharged by the exhaust pipe;

according to the utility model, the air blower is started through the control panel, so that the clean air of the exhaust pipe is uniformly injected into the air blowing plate box by the branch pipes arranged on the surfaces of the air blowing pipes in pairs, and then the air is uniformly blown out from top to bottom by the air blowing plate box facing to the plurality of air outlets on one side of the hot tin pool, so that part of tin particles gushed out along with the hot waves of the hot tin pool fall back between the two air suction covers, and the recovery efficiency of the tin particles is ensured.

Drawings

FIG. 1 is a schematic structural diagram of a recycling device for a tin spraying workshop according to the utility model;

FIG. 2 is a top view of a recycling apparatus for a hot air solder leveling shop according to the present invention;

FIG. 3 is a schematic structural diagram of an air suction hood of the recovery device for the tin spraying workshop according to the utility model;

FIG. 4 is a schematic structural diagram of a blast plate box of the recovery device for the tin spraying workshop.

Illustration of the drawings:

1. a hot tin pool; 2. a control panel; 3. an air suction hood; 4. a blast panel box; 5. an air supply pipe; 6. a branch pipe; 7. an air outlet nozzle; 8. a blower; 9. an air suction pipe; 10. an air guide pipe; 11. a U-shaped frame; 12. a dust collection fan; 13. a collection box; 14. an activated carbon filter plate; 15. an exhaust duct; 16. mounting a carrier plate; 17. a wire mesh; 18. and (4) a support column.

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.

According to an embodiment of the utility model, a recycling device for a tin spraying workshop is provided.

The utility model will be further explained with reference to the accompanying drawings and specific embodiments, as shown in fig. 1-4, a recycling device for a tin spraying workshop according to an embodiment of the utility model comprises a hot tin bath 1, two air suction hoods 3 are welded on the top surface of the hot tin bath 1, wire meshes 17 are welded on the opposite surfaces of the two air suction hoods 3, the back surfaces of the two air suction hoods 3 are communicated with an air suction pipe 9 through a plurality of end pipes, the middle position of the air suction pipe 9 is connected with an air guide pipe 10 through a tee joint, a dust suction fan 12 is arranged on the surface of the air guide pipe 10, a U-shaped frame 11 is welded on the lower side surface of the hot tin bath 1, a collection box 13 is fixedly arranged on the top surface of the U-shaped frame 11, the dust suction fan 12 is fixedly connected with the U-shaped frame 11 through bolts, one end of the air guide pipe 10 is communicated with the collection box 13, a mounting plate 16 is fastened on the top surface of the collection box 13 through flat head screws, and a plurality of active carbon filter plates 14 are fixedly arranged on the side of the mounting plate 16 facing the collection box 13, a plurality of activated carbon filter plates 14 all extend into the collecting box 13, the surface of the lower part of the collecting box 13 is communicated with an exhaust pipe 15, an air blowing plate box 4 is welded above two air suction hoods 3, two dust suction fans 12 on a U-shaped frame 11 are opened through a control panel 2, the air suction hoods 3 on two sides of the top surface of the hot tin pool 1 are promoted to absorb tin particles diffused in the air by taking U-shaped metal wire nets 17 welded in opposite surfaces as adsorption ports, and then tin-containing gas is guided into an air guide pipe 10 by an air suction pipe 9 communicated with the air suction hoods 3 through an end pipe and then is penetrated into the collecting box 13 through the air guide pipe 10, so that the plurality of activated carbon filter plates 14 fixedly arranged on the surface of a mounting support plate 16 filter the tin-containing gas until clean air is discharged through the exhaust pipe 15, and because the adsorption type recovery of the tin particles directly acts on the upper part of the hot tin pool 1, the diffused tin particles can be timely and efficiently recovered, the pollution to the production environment is reduced and the human health is guaranteed;

in one embodiment, a plurality of air outlets 7 are uniformly arranged on the bottom surface of the air blast board box 4, supporting columns 18 are welded at four corners of the bottom surface of the air blast board box 4, one end of the exhaust pipe 15 is communicated with the air supply pipe 5 through a connecting flange, and the surface of the blast pipe 5 is provided with a blower 8, one side of the blower 8 is positioned on the surface of the blast pipe 5 and is communicated with a plurality of branch pipes 6, one end of each branch pipe 6 is communicated with the blast plate box 4, the blower 8 is started through the control panel 2, so that the clean air of the exhaust pipe 15 is uniformly injected into the blast plate box 4 by the branch pipes 6 which are arranged on the surface of the blast pipe 5 in pairs, and then the air-blast plate box 4 blows out the air from the top to the bottom uniformly by a plurality of air outlets 7 facing one side of the hot tin bath 1, so that partial tin particles gushed out along with the hot waves of the hot tin pool 1 fall back between the two air suction covers 3, and the recovery efficiency of the tin particles is ensured.

In one embodiment, the branch pipes 6 are all of an L-shaped structure, and the branch pipes 6 are arranged on the surface of the blast pipe 5 at equal intervals in pairs, so that clean air can be uniformly introduced into the blast plate box 4 through the branch pipes 6.

In one embodiment, two groups of the suction hood 3, the suction pipe 9, the air guide pipe 10 and the dust collection fan 12 are arranged, the two groups of the suction hood 3, the suction pipe 9, the air guide pipe 10 and the dust collection fan 12 are symmetrical about the horizontal central line of the hot tin bath 1, and the tin particle recovery efficiency can be improved through the two groups of the suction hood 3, the suction pipe 9, the air guide pipe 10 and the dust collection fan 12.

In one embodiment, the two air suction covers 3 are both of a U-shaped structure, the metal wire nets 17 of the U-shaped structures are welded on the opposite surfaces of the two air suction covers 3, the range of tin particle adsorption can be increased through the air suction covers 3 of the U-shaped structures and the metal wire nets 17 of the U-shaped structures, and the adsorption effect is guaranteed.

In one embodiment, the control panel 2 is disposed on a side wall surface of the hot tin bath 1, an output end of the control panel 2 is electrically connected to the blower 8 and the dust suction fan 12, respectively, and a control circuit of the control panel 2 can be implemented by simple programming by a person skilled in the art, which belongs to the common knowledge in the art, and is only used without modification, so that a detailed description of a control mode and a circuit connection is omitted.

In one embodiment, the top surface of the collection box 13 is opened corresponding to the mounting carrier 16, and the periphery of the opening is opened with a plurality of screw grooves, and a sealing frame strip is bonded to the edge of the mounting carrier 16 facing the side of the collection box 13, so as to give way for the activated carbon filter plate 14 through the opening, so as to facilitate the fastening of the mounting carrier 16 through the plurality of screw grooves, and the sealing frame strip can ensure the sealing performance of the mounting carrier 16.

The working principle is as follows:

when in use, the power is switched on, when tin particles are recovered, the two dust absorption fans 12 on the U-shaped frame 11 are started through the control panel 2, the suction hoods 3 on the two sides of the top surface of the hot tin pool 1 are enabled to absorb the tin particles diffused in the air by taking the U-shaped metal wire meshes 17 welded on the opposite surfaces as adsorption ports, the air suction pipes 9 communicated with the suction hoods 3 through end pipes are used for guiding tin-containing gas into the air guide pipe 10, then the air guide pipe 10 penetrates into the collection box 13, so that the tin-containing gas is filtered by the plurality of activated carbon filter plates 14 fixedly arranged on the surface of the mounting support plate 16 until clean air is discharged by the exhaust pipes 15, the adsorption type recovery of the tin particles directly acts on the upper part of the hot tin pool 1, the diffused tin particles can be timely and efficiently recovered, meanwhile, the control panel 2 is started to be 8, the plurality of branch pipes 6 arranged on the surface of the air supply pipe 5 are enabled to uniformly penetrate the clean air of the exhaust pipes 15 into the air blowing plate box 4 in pairs, and then a plurality of blast nozzles 7 of blast air plate box 4 face hot tin pond 1 one side blow off the air from top to bottom uniformly for the part tin granule that gushes out with the hot wave in hot tin pond 1 falls back to between two cover 3 that induced drafts, ensures the recovery efficiency of tin granule, reduces the pollution of production environment and ensures that the person is healthy.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A recovery unit for tin spraying workshop, includes hot tin pond (1), its characterized in that: the top surface of the hot tin pool (1) is welded with two air suction covers (3), the two air suction covers (3) are welded with metal wire meshes (17) on the opposite surfaces, the back surfaces of the two air suction covers (3) are communicated with air suction pipes (9) through a plurality of end pipes, the middle position of each air suction pipe (9) is connected with an air guide pipe (10) through a tee joint, a dust suction fan (12) is arranged on the surface of each air guide pipe (10), the side surface of the lower part of the hot tin pool (1) is welded with a U-shaped frame (11), a collection box (13) is fixedly arranged on the top surface of each U-shaped frame (11), the dust suction fan (12) is fixedly connected with the U-shaped frames (11) through bolts, one end of each air guide pipe (10) is communicated with the collection box (13), the top surface of the collection box (13) is fixedly provided with a mounting support plate (16) through flat head screws, and one surface of the mounting support plate (16) facing the collection box (13) is fixedly provided with a plurality of active carbon filter plates (14), it is a plurality of inside activated carbon filter (14) all stretched into collecting box (13), collecting box (13) lower part surface intercommunication has exhaust pipe (15), two the top welding of cover (3) that induced drafts has air-blast board case (4).

2. The recycling device for the tin spraying plant according to claim 1, characterized in that: a plurality of air outlet nozzles (7) have evenly been seted up to blast air board case (4) bottom surface, and the four corners of blast air board case (4) bottom surface all welds and has support column (18), the one end of exhaust pipe (15) has blast pipe (5) through flange intercommunication, and the surface mounting of blast pipe (5) has air-blower (8), air-blower (8) one side is located blast pipe (5) surface intercommunication and has a plurality of branch pipes (6), and the one end of a plurality of branch pipes (6) all communicates with blast air board case (4).

3. The recycling device for the tin spraying plant according to claim 2, characterized in that: a plurality of branch pipes (6) are L-shaped structures, and a group of branch pipes (6) are arranged on the surface of the blast pipe (5) at equal intervals.

4. The recycling device for the tin spraying plant according to claim 1, characterized in that: the air suction cover (3), the air suction pipe (9), the air guide pipe (10) and the dust collection fan (12) are arranged in two groups, and the two groups of air suction covers (3), the air suction pipe (9), the air guide pipe (10) and the dust collection fan (12) are symmetrical about the horizontal center line of the hot tin bath (1).

5. The recycling device for the tin spraying plant according to claim 1, characterized in that: two the cover (3) that induced drafts is U type structure, and the welding of the face in opposite directions of two cover (3) of induced drafting has wire mesh (17) of U type structure.

6. The recycling device for the tin spraying plant according to claim 2, characterized in that: the side wall surface of the hot tin pool (1) is provided with a control panel (2), and the output end of the control panel (2) is electrically connected with the air blower (8) and the dust collection fan (12) respectively.

7. The recycling device for the tin spraying plant according to claim 1, characterized in that: the top surface of the collection box (13) is provided with an opening corresponding to the installation carrier plate (16), the periphery of the opening is provided with a plurality of thread grooves, and the edge of the installation carrier plate (16) facing one surface of the collection box (13) is bonded with a sealing frame strip.