Circuit board surface soldering flux coating machine

Abstract

The utility model relates to the technical field of welding equipment, in particular to a circuit board surface soldering flux coating machine. The utility model provides a circuit board surface soldering flux coating machine capable of adjusting the coating range. A circuit board surface soldering flux coating machine comprises a workbench, a placing table, a placing frame, a supporting frame, a material box, a coating rod, a corrugated pipe, a threaded rod and the like. The workbench is fixedly connected with a placement table, the placement table is in sliding connection with placement frames distributed in the circumferential direction, the placement table is in sliding connection with a supporting frame, the supporting frame is fixedly connected with a material box, the supporting frame is rotationally connected with a coating rod, the coating rod is sleeved with a corrugated pipe with one sealed end, and the supporting frame is rotationally connected with a threaded rod. According to the scaling powder coating machine, the coating range of the coating rod can be adjusted according to the size of a circuit board through the corrugated pipe, the threaded rod and other components, the situation that the circuit board cannot be evenly coated with scaling powder due to the fact that the coating range is too small can be avoided, the situation that the scaling powder is wasted due to the fact that the coating range is too large can also be avoided, and the practicability of the scaling powder coating machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding equipment technical field especially relates to a circuit board surface flux coating machine. BACKGROUND

[0002] The flux is usually a mixture with rosin as the main component, and is an auxiliary material to ensure the smooth progress of the welding process. Welding is the main process in electronic assembly, and the flux is an auxiliary material used during welding. The main role of the flux is to remove the oxides on the surface of the solder and the base material to be welded, so that the metal surface achieves the necessary cleanliness. It prevents the surface from being re-oxidized during welding, reduces the surface tension of the solder, and improves the welding performance. The performance of the flux directly affects the quality of electronic products. Therefore, the flux should be evenly applied on the surface of the circuit board before welding.

[0003] In the patent with publication number CN219234204U, a flux coating device is disclosed. The flux coating device includes a flux tank, a flexible coating member, and a clamping assembly. The flux tank contains flux inside. The flexible coating member includes a flexible part and a rigid part connected to each other. The flexible part is horizontally arranged above the flux in the flux tank, and the rigid part is fixed on the side wall of the flux tank. The clamping assembly is arranged on one side of the flexible coating member and is used to clamp the stator core. After the stator core and the PCB board connected to the stator core are separated from the flux in the flux tank, they are in contact with the flexible part in sequence. The technical solution of the utility model further improves the flux coating effect of the flux coating device, making the flux coating more uniform and sufficient. However, this device cannot adjust the coating range according to the size of the circuit board. If the circuit board is large, the flux coating device cannot completely coat it at one time. Multiple coatings will result in uneven flux coating. If the circuit board is small, the excessive coating range may cause waste of flux.

[0004] Based on the above situation, the utility model provides a circuit board surface flux coating machine with adjustable coating range. Utility model content

[0005] In order to overcome the shortcomings of the existing flux coating machine that cannot adjust the coating range according to the size of the circuit board, which may result in uneven flux coating or waste of flux, the utility model provides a circuit board surface flux coating machine with adjustable coating range.

[0006] A circuit board surface soldering flux coating machine, it includes workbench, placement table, placement frame, support frame, pull rod, material box, coating rod, welding torch, rubber hose and adjusting mechanism, the placement table is fixedly connected with the placement table, the placement table is slidably connected with the circumferentially distributed placement frame, the placement table is slidably connected with the support frame, the support frame is fixedly connected with the pull rod, the support frame is fixedly connected with the material box, the material box is fixedly connected and is communicated with the axially distributed rubber hose, the support frame is rotatably connected with the coating rod, the rubber hose is in contact with the coating rod, the workbench is electrically connected with the welding torch, and the adjusting mechanism is arranged on the support frame.

[0007] In a preferred embodiment of the present application, the adjusting mechanism comprises a bellows, a rotating rod, a threaded rod, a measuring scale, a pointer and a moving frame, the coating rod is sleeved with a sealed bellows at one end, the support frame is rotatably connected with the threaded rod, the threaded rod is rotatably connected with the rotating rod, the support frame is fixedly connected with the measuring scale, the threaded rod is threadedly connected with the moving frame, the moving frame is fixedly connected with the pointer, and the moving frame is fixedly connected with the unsealed end of the bellows.

[0008] In a preferred embodiment of the present application, the adjusting mechanism comprises a bellows, a rotating rod, a threaded rod, a measuring scale, a pointer and a moving frame, the coating rod is sleeved with a sealed bellows at one end, the support frame is rotatably connected with the threaded rod, the threaded rod is rotatably connected with the rotating rod, the support frame is fixedly connected with the measuring scale, the threaded rod is threadedly connected with the moving frame, the moving frame is fixedly connected with the pointer, and the moving frame is fixedly connected with the unsealed end of the bellows.

[0009] In a preferred embodiment of the present application, the adjusting mechanism comprises a bellows, a rotating rod, a threaded rod, a measuring scale, a pointer and a moving frame, the coating rod is sleeved with a sealed bellows at one end, the support frame is rotatably connected with the threaded rod, the threaded rod is rotatably connected with the rotating rod, the support frame is fixedly connected with the measuring scale, the threaded rod is threadedly connected with the moving frame, the moving frame is fixedly connected with the pointer, and the moving frame is fixedly connected with the unsealed end of the bellows.

[0010] In a preferred embodiment of the present application, a plurality of grooves are arranged on the pull rod, so that the friction between the hand and the pull rod is increased, and the pull rod is convenient to hold.

[0011] In a preferred embodiment of the present application, the coating rod is made of soft rubber material, which is used for adhering to the circuit board and uniformly coating the soldering flux on the surface of the circuit board.

[0012] Compared with the prior art, the present application has the following advantages: the coating range of the coating rod can be adjusted according to the size of the circuit board through the bellows and the threaded rod, so that the soldering flux can be uniformly coated on the circuit board without waste, and the practicability of the soldering flux coating machine is improved.

[0013] The present application can avoid the cooling and solidification of the soldering flux after long-term storage, thereby affecting the use of the soldering flux coating machine.

[0014] The utility model discloses a through the component such as sucking plate and air cylinder, can remove the dust on the surface of circuit board before coating the flux, prevent the dust on the surface of circuit board from influencing the coating effect of flux coating machine, thereby influence the subsequent welding. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0016] Figure 2 It is the three-dimensional structure schematic diagram of the utility model bellows, heating pipe and sucking plate component.

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the utility model placing rack, support frame and draw bar component.

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the utility model rotating rod, threaded rod and measuring scale component.

[0019] Figure 5 It is the three-dimensional structure schematic diagram of the utility model heating pipe, gear set and rotating shaft component.

[0020] Figure 6 It is the three-dimensional structure schematic diagram of the utility model air cylinder, resist plate and compression spring component.

[0021] Figure 7 It is the three-dimensional structure schematic diagram of the utility model air cylinder, connecting pipe and sucking plate component.

[0022] Among them, the above-mentioned drawing includes following drawing marks: 1, worktable, 11, placing table, 12, placing rack, 13, support frame, 14, draw bar, 15, material box, 16, coating rod, 17, welding torch, 18, rubber hose, 2, bellows, 21, rotating rod, 22, threaded rod, 23, measuring scale, 24, pointer, 25, moving frame, 3, heating pipe, 31, gear set, 32, rotating shaft, 4, sucking plate, 41, air cylinder, 42, resist plate, 43, compression spring, 44, connecting pipe. DETAILED DESCRIPTION

[0023] Although the utility model can be described in relation to a particular application or industry, those skilled in the art will recognize a broader applicability of the utility model. Those of ordinary skill in the art will recognize that terms such as: above, below, upward, downward, etc. are used to describe the drawings and are not meant to limit the scope of the utility model as defined by the appended claims. Any numerical designations such as: first or second are merely illustrative and are not intended to limit the scope of the utility model in any way.

[0024] A circuit board surface flux coating machine, such asFigures 1-4 As shown in the figure, it comprises a workbench 1, a placing table 11, placing racks 12, a support frame 13, a pull rod 14, a material box 15, a coating rod 16, a welding gun 17, rubber hoses 18 and an adjusting mechanism, the top of the workbench 1 is fixedly connected with the placing table 11, the top of the placing table 11 is slidably connected with the circumferentially distributed placing racks 12, the top of the placing table 11 is slidably connected with the support frame 13 at the rear side, the top of the support frame 13 is fixedly connected with the pull rod 14 at the right side, the top of the support frame 13 is fixedly connected with the material box 15, the inside of the material box 15 stores the flux, the bottom of the material box 15 is fixedly connected with and communicated with the axially distributed rubber hoses 18, the middle of the support frame 13 is rotatably connected with the coating rod 16, the rubber hoses 18 are in contact with the coating rod 16, the top of the workbench 1 is electrically connected with the welding gun 17 at the right side, and the support frame 13 is provided with the adjusting mechanism.

[0025] As shown in the figure, Figure 4 The adjusting mechanism comprises a bellows 2, a rotating rod 21, a threaded rod 22, a measuring scale 23, a pointer 24 and a moving frame 25, the left end of the coating rod 16 is sleeved with the bellows 2 with one end sealed, the rear side of the support frame 13 is rotatably connected with the threaded rod 22, the right end of the threaded rod 22 is rotatably connected with the rotating rod 21, the rear side of the support frame 13 is fixedly connected with the measuring scale 23 at the upper portion, the threaded rod 22 is externally threadedly connected with the moving frame 25, the top of the moving frame 25 is fixedly connected with the pointer 24, and the moving frame 25 is fixedly connected with the other end of the bellows 2 which is not sealed.

[0026] As shown in the figure, Figure 5 It further comprises a heating pipe 3, a gear set 31 and a rotating shaft 32, the gear set 31 comprises two gears which are meshed with each other, the rear side of the support frame 13 is rotatably connected with the rotating shaft 32, the right end of the rotating shaft 32 is fixedly connected with one of the gears of the gear set 31, the left end of the rotating shaft 32 is fixedly connected with the heating pipe 3, and the right end of the coating rod 16 is fixedly connected with the other gear of the gear set 31.

[0027] As shown in the figure, Figure 6 And Figure 7 It further comprises a suction plate 4, an air cylinder 41, an abutting plate 42, a compression spring 43 and a connecting pipe 44, the placing table 11 is fixedly connected with the suction plate 4, the top of the workbench 1 is fixedly connected with the air cylinder 41 at the left side, the compression spring 43 is fixedly connected between the cylinder body and the piston rod of the air cylinder 41, the front side of the support frame 13 is fixedly connected with the abutting plate 42 at the left portion, the abutting plate 42 is in contact with the piston rod of the air cylinder 41, one end of the connecting pipe 44 is in communication with the air cylinder 41, and the other end of the connecting pipe 44 is in communication with the suction plate 4.

[0028] As shown in the figure, Figure 3 The pull rod 14 is provided with a plurality of grooves for increasing the friction between the hand and the pull rod 14, so that the pull rod 14 is convenient for the hand to grip.

[0029] As shown in the figure, Figure 3As shown, the coating rod 16 is made of soft rubber material, which is used to adhere to the circuit board and evenly coat the flux on the surface of the circuit board.

[0030] When the worker needs to evenly coat the flux on the surface of the circuit board, first fix the circuit board by the placing frame 12, then rotate the rotating rod 21 according to the size of the circuit board and the measuring ruler 23, so as to rotate the threaded rod 22, drive the moving frame 25 to move the bellows 2 and the pointer 24 to the appropriate position, when the size of the circuit board is larger, the moving frame 25 and the pointer 24 can move to the left, so that the bellows 2 shrink and do not block the rubber hose 18, when the size of the circuit board is smaller, the moving frame 25 and the pointer 24 can move to the right, so that the bellows 2 extend and block part of the rubber hose 18 to discharge the flux on the coating rod 16, to avoid waste of the flux, after adjustment, start the heating pipe 3 to avoid the flux flowing out of the material box 15 through the rubber hose 18 and solidifying on the coating rod 16, at this time the compression spring 43 is in the compressed state, then pull the pull rod 14 forward, drive the support frame 13 and other components to move forward, because the stop plate 42 also moves forward and no longer abuts against the piston rod of the air cylinder 41, the piston rod moves forward with the stop plate 42 under the action of the reset of the compression spring 43, the air cylinder 41 sucks air through the connecting pipe 44 and the suction plate 4, so as to remove the dust and other impurities on the surface of the circuit board, when the support frame 13 moves forward to the stop plate 42 separates from the piston rod, the coating rod 16 contacts the circuit board, then continue to drive the support frame 13 and the coating rod 16 to move forward, the coating rod 16 is extruded by the circuit board and starts to rotate, the rotation of the coating rod 16 drives the heating pipe 3 to rotate through the gear set 31, to avoid the heating pipe 3 always heating the material box 15 and the coating rod 16, which causes the material box 15 and the coating rod 16 to overheat and melt, the rotation of the coating rod 16 also evenly applies the flux attached to the coating rod 16 to the circuit board, when the support frame 13 and the coating rod 16 continue to move forward to the end of the coating, turn off the heating pipe 3, take the welding gun 17 to weld the circuit board, after welding, put the welding gun 17 back to the original position, and take down the circuit board, then push the pull rod 14 backward, drive the support frame 13 and the stop plate 42 to move backward to the original position, when the stop plate 42 moves backward to contact the piston rod of the air cylinder 41, it extrudes the piston rod to move backward to reset, the compression spring 43 is compressed immediately, at this time all components return to the original position for next use, because the support frame 13 and other components have large mass, the compression spring 43 cannot drive the piston rod, the stop plate 42 and the support frame 13 and other components to move forward.

[0031] The technical principles of the embodiments of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present application, and cannot be interpreted as limiting the protection scope of the embodiments of the present application in any way. Based on the explanations herein, other specific embodiments of the embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will all fall within the protection scope of the embodiments of the present application.

Claims

1. A circuit board surface flux coating machine, comprising a workbench (1), a placing table (11), placing racks (12), a support frame (13), a pull rod (14), a material box (15), a coating rod (16), a soldering gun (17), rubber hoses (18) and an adjusting mechanism, the placing table (11) is fixedly connected to the workbench (1), the placing table (11) is slidably connected with the circumferentially distributed placing racks (12), the placing table (11) is slidably connected with the support frame (13), the support frame (13) is fixedly connected with the pull rod (14), the support frame (13) is fixedly connected with the material box (15), the material box (15) is fixedly connected and communicated with the axially distributed rubber hoses (18), the support frame (13) is rotatably connected with the coating rod (16), the rubber hoses (18) are in contact with the coating rod (16), the workbench (1) is electrically connected with the soldering gun (17), and the support frame (13) is provided with the adjusting mechanism.

2. A circuit board surface soldering flux applicator as defined in claim 1 wherein: The adjusting mechanism comprises a bellows (2), a rotating rod (21), a threaded rod (22), a measuring scale (23), a pointer (24) and a moving frame (25), the coating rod (16) is sleeved with the bellows (2) which is sealed at one end, the support frame (13) is rotatably connected with the threaded rod (22), the threaded rod (22) is rotatably connected with the rotating rod (21), the support frame (13) is fixedly connected with the measuring scale (23), the threaded rod (22) is threadedly connected with the moving frame (25), the moving frame (25) is fixedly connected with the pointer (24), and the moving frame (25) is fixedly connected with the unsealed end of the bellows (2).

3. A circuit board surface solder flux applicator as defined in claim 2 wherein: Further comprising a heating pipe (3), a gear set (31) and a rotating shaft (32), wherein the gear set (31) comprises two gears which are meshed with each other, the support frame (13) is rotatably connected with the rotating shaft (32), the rotating shaft (32) is fixedly connected with one of the gears of the gear set (31), the rotating shaft (32) is fixedly connected with the heating pipe (3), and the coating rod (16) is fixedly connected with the other gear of the gear set (31).

4. A circuit board surface solder flux applicator as defined in claim 3 wherein: Further comprising a suction plate (4), an air cylinder (41), an abutting plate (42), a compression spring (43) and a connecting pipe (44), the placing table (11) is fixedly connected with the suction plate (4), the workbench (1) is fixedly connected with the air cylinder (41), the compression spring (43) is fixedly connected between the cylinder body and the piston rod of the air cylinder (41), the support frame (13) is fixedly connected with the abutting plate (42), the abutting plate (42) is in contact with the piston rod of the air cylinder (41), one end of the connecting pipe (44) is in communication with the air cylinder (41), and the other end of the connecting pipe (44) is in communication with the suction plate (4).

5. A circuit board surface solder flux applicator as defined in claim 4 wherein: A plurality of grooves are arranged on the pull rod (14).

6. A circuit board surface solder flux applicator as defined in claim 5 wherein: The coating rod (16) is made of soft rubber material.

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