Tin spraying device for lead-free circuit board production

Abstract

The utility model discloses a tin spraying device for lead-free circuit board production, which comprises a machine body for spraying tin, a cavity is formed in the machine body, a conveying belt is fixedly arranged at the position, close to the top end, in the machine body, and fixing blocks are fixedly arranged at the top end and the bottom end of the conveying belt. Clamping columns are fixedly arranged at the positions, close to the two sides, of the front surface and the rear surface of the fixing block correspondingly, a frame is arranged below the conveying belt, and a clamping groove is formed in the inner wall of the frame. According to the tin spraying device for lead-free circuit board production, by arranging the conveying belt, the frame, the material spraying pipe and the material pump, when the device is used, assembly line type operation design is adopted, two-face spraying can be conducted on a circuit board at the same time, a user can conveniently load and unload materials, the time for loading and unloading the materials is saved, the production efficiency of products is improved, and convenience is brought to the user; the practicability of the device is improved, and the use requirements of users are met.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a tin-spraying device for producing lead-free circuit boards. Background Art

[0002] With the development of society, there are more and more electronic products, which are closely related to our daily life. The circuit boards in electronic products need to be lead-free tin-sprayed during the production process. Tin-spraying is the most common surface coating form for circuit board surface treatment and is widely used in the production of circuit boards. The quality of tin-spraying will directly affect the quality and solderability of subsequent customer welding, so the quality of tin-spraying has become a key point of quality control for circuit board manufacturers.

[0003] The comparative document "A tin-spraying device for lead-free circuit board production", patent number (CN216531992U), achieves the effect of tin-spraying both sides of the circuit board at the same time by reciprocating two tin-spraying heads on both sides of the clamped circuit board, thereby improving production efficiency.

[0004] However, when the tin spraying device is in use, the continuity of tin spraying is not high, resulting in low efficiency of tin spraying when the user is performing the tin spraying operation, which brings inconvenience to the user and can no longer meet the user's usage needs. Utility Model Content

[0005] The purpose of the utility model is to provide a tin spraying device for the production of lead-free circuit boards, so as to solve the problem in the above-mentioned background technology that the continuity of tin spraying is not high when the tin spraying device is in use, resulting in low tin spraying efficiency when the user is performing the tin spraying operation, causing inconvenience to the user and no longer meeting the user's use needs.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tin-spraying device for producing lead-free circuit boards, comprising a body for tin-spraying, a cavity being provided inside the body, a conveyor belt being fixedly provided at a top position inside the body, a fixing block being fixedly provided at the top and bottom ends of the conveyor belt, clamping columns being fixedly provided at both sides of the front and rear surfaces of the fixing block, a frame being provided below the conveyor belt, a clamping groove being provided on the inner wall of the frame, connecting rods being movably provided at both sides of the top of the frame through a rotating shaft, limiting threaded rods being provided at the bottom positions on both sides of the frame, a material box being fixedly provided at one side of the bottom of the body, a material pump being fixedly provided at one side of the material box at the bottom of the body, a conduit being provided at the bottom position in the middle of the inner rear surface of the body, and a material spraying pipe being connected at both front and rear ends of the top of the conduit.

[0007] Furthermore, four supporting feet are fixedly arranged on the bottom of the machine body, and the four supporting feet are respectively located at four corners of the bottom of the machine body.

[0008] Furthermore, one end of the clamping column close to the connecting rod passes through the connecting rod and extends outside the connecting rod, and the clamping column is clamped with the connecting rod.

[0009] Furthermore, opposite sides of the two limiting threaded rods penetrate the frame and the clamping groove and extend to the inside of the frame, and the limiting threaded rods are threadedly connected to the frame.

[0010] Furthermore, the rear end of the spray pipe is fixedly connected to the inner wall of the machine body.

[0011] Furthermore, a suction port disposed on one side of the material pump is connected to a suction pipe, and one end of the suction pipe is connected to the material box.

[0012] Furthermore, a discharge port opened at the other side of the material pump is connected to a discharge pipe, and one end of the discharge pipe is connected to the injection pipe.

[0013] Furthermore, the top end of the material box is connected to a filling pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The tin-spraying device for producing lead-free circuit boards adopts an assembly line operation design by arranging a conveyor belt, a frame, a spraying pipe and a material pump. Not only can the circuit boards be sprayed on both sides at the same time, but it is also more convenient for users to load and unload materials, saving time for loading and unloading materials, improving product production efficiency, bringing convenience to users, improving the practicality of the device, and meeting the use needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 3 for Figure 2 A is a partial enlarged schematic diagram;

[0019] Figure 4 It is a schematic diagram of the clamping groove of the utility model.

[0020] In the figure: 1. machine body; 2. conveyor belt; 3. fixing block; 4. clamping column; 5. frame; 6. clamping groove; 7. connecting rod; 8. limiting threaded rod; 9. material box; 10. material pump; 11. guide tube; 12. material spraying pipe; 13. supporting foot. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below with reference to the accompanying drawings and through specific embodiments. The following embodiments are merely illustrative and not limiting of the protection scope of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a tin-spraying device for producing lead-free circuit boards, comprising a body 1 for tin-spraying, the body 1 is used for tin-spraying operation, a cavity is opened inside the body 1, a conveyor belt 2 is fixedly arranged at the top position in the body 1, the conveyor belt 2 is used to convey products, the top and bottom ends of the conveyor belt 2 are fixedly arranged with fixed blocks 3, the fixed blocks 3 are used to set clamping columns 4, the front and rear surfaces of the fixed blocks 3 are fixedly arranged at both sides, the clamping columns 4 are used to connect with the connecting rod 7, a frame 5 is arranged below the conveyor belt 2, the frame 5 is used to place the circuit board, the inner wall of the frame 5 is opened with a clamping groove 6, the clamping groove 6 is used to clamp the side of the circuit board The frame 5 is limited in position, connecting rods 7 are movably provided on both sides of the top of the frame 5 through a rotating shaft, and the connecting rods 7 are used to be clamped with the clamping column 4. Limiting threaded rods 8 are provided on both sides of the bottom of the frame 5, and the limiting threaded rods 8 can limit the bottom end of the circuit board. A material box 9 is fixedly provided on one side of the bottom of the body 1, and the material box 9 is used to set tin material. A material pump 10 is fixedly provided on one side of the material box 9 at the bottom of the body 1, and the material pump 10 can extract tin material. A conduit 11 is provided at the bottom of the middle of the rear surface of the body 1, and the conduit 11 is used to transport tin material. The front and rear ends of the top of the conduit 11 are connected with a spray pipe 12, and the spray pipe 12 is used to spray tin material.

[0023] Furthermore, four supporting feet 13 are fixedly provided at the bottom of the machine body 1 . The four supporting feet 13 are respectively located at four corners of the bottom of the machine body 1 , wherein the supporting feet 13 can support the machine body 1 .

[0024] Furthermore, one end of the clamping column 4 close to the connecting rod 7 passes through the connecting rod 7 and extends outside thereof, and the clamping column 4 is clamped with the connecting rod 7, wherein the clamping column 4 and the connecting rod 7 are clamped together to stably install the frame 5 on the conveyor belt 2.

[0025] Furthermore, opposite sides of the two limiting threaded rods 8 penetrate the frame 5 and the clamping groove 6 and extend to the inside of the frame 5, and the limiting threaded rods 8 are threadedly connected to the frame 5, wherein the limiting threaded rods 8 can limit the bottom end of the circuit board.

[0026] Furthermore, the rear end of the material spraying pipe 12 is fixedly connected to the inner wall of the machine body 1, wherein the material spraying pipe 12 is capable of spraying material.

[0027] Furthermore, a suction port disposed on one side of the material pump 10 is connected to a suction pipe, and one end of the suction pipe is connected to the material box 9, wherein the suction pipe is capable of sucking materials.

[0028] Furthermore, the discharge port opened at the other side of the material pump 10 is connected to a discharge pipe, and one end of the discharge pipe is connected to the spray pipe 12, wherein the discharge pipe can discharge materials.

[0029] Furthermore, the top of the material box 9 is connected to a filling pipe, wherein the filling pipe is convenient for the user to fill the tin material.

[0030] Working principle: When using this device, the user places the side of the circuit board card in the clamping groove 6 opened in the frame 5, and then the user turns the limiting threaded rod 8 to rotate, so that the limiting threaded rod 8 limits the circuit board from the bottom end of the circuit board, and then the user clamps the connecting rod 7 on the frame 5 with the clamping column 4, so as to hang the frame 5 on the conveyor belt 2, and then the user starts the conveyor belt 2 to convey the frame 5, so that the circuit board on the frame 5 moves, when the circuit board moves to the position almost reaching the two spray pipes 12, the user starts the material pump 10 to extract the tin material, and transports the tin material to the conduit 11 through the discharge pipe, and transports the tin material to the spray pipe 12 through the conduit 11 for spraying, so that when the circuit board passes through this position, the front and rear surfaces will be sprayed with paint.

[0031] According to the above working process, we can know:

[0032] The tin-spraying device for producing lead-free circuit boards adopts an assembly line operation design by arranging a conveyor belt 2, a frame 5, a spraying pipe 12 and a material pump 10. Not only can the circuit boards be sprayed on both sides at the same time, but it is also more convenient for users to load and unload materials, saving time for loading and unloading materials, improving the production efficiency of the product, bringing convenience to users, improving the practicality of the device, and meeting the use needs of users.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tin-spraying device for producing lead-free circuit boards, comprising a body (1) for tin-spraying, characterized in that: The body (1) has a cavity formed inside, a conveyor belt (2) is fixedly provided at a top position in the body (1), a fixing block (3) is fixedly provided at the top and bottom ends of the conveyor belt (2), clamping columns (4) are fixedly provided at both sides of the front and rear surfaces of the fixing block (3), a frame (5) is provided below the conveyor belt (2), a clamping groove (6) is provided on the inner wall of the frame (5), connecting rods (7) are movably provided at both sides of the top of the frame (5) through a rotating shaft, limiting threaded rods (8) are provided at both sides of the frame (5) at the bottom, a material box (9) is fixedly provided at one side of the bottom of the body (1), a material pump (10) is fixedly provided at one side of the material box (9) at the bottom of the body (1), a conduit (11) is provided at the bottom middle of the rear surface of the body (1), and a material spraying pipe (12) is connected at both front and rear ends of the top of the conduit (11).

2. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: Four supporting feet (13) are fixedly arranged at the bottom of the machine body (1), and the four supporting feet (13) are respectively located at four corners of the bottom of the machine body (1).

3. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: One end of the clamping column (4) close to the connecting rod (7) passes through the connecting rod (7) and extends outside the connecting rod, and the clamping column (4) is clamped with the connecting rod (7).

4. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: The opposite sides of the two limiting threaded rods (8) penetrate the frame (5) and the clamping groove (6) and extend to the inside of the frame (5), and the limiting threaded rods (8) are threadedly connected to the frame (5).

5. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: The rear end of the injection pipe (12) is fixedly connected to the inner wall of the machine body (1).

6. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: A suction port disposed on one side of the material pump (10) is connected to a suction pipe, and one end of the suction pipe is connected to the material box (9).

7. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: The discharge port of the material pump (10) located on the other side is connected to a discharge pipe, and one end of the discharge pipe is connected to the spray pipe (12).

8. The tin-spraying device for producing lead-free circuit boards according to claim 1, characterized in that: The top end of the material box (9) is connected to a filling pipe.

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