PCB (Printed Circuit Board) tin spraying machine

Abstract

The utility model discloses a PCB (printed circuit board) tin spraying machine which comprises a tin spraying machine main body, the front surface of the tin spraying machine main body is fixedly connected with a conveying mechanism and a storage box respectively, the top of the storage box is fixedly connected with a feeding mechanism, the front surface and the back surface of the tin spraying machine main body are fixedly connected with movable toothed plates, and the outer sides of the movable toothed plates are movably connected with movable frames. Moving grooves are formed in the two sides of the moving frame, the two sides of the moving frame are movably connected with a tin spraying body and a draught fan through the moving grooves correspondingly, an air pipe is fixedly connected to the bottom of the draught fan, a fan cover is fixedly connected to the bottom end of the air pipe, and an adjusting mechanism and a moving mechanism are fixedly connected to the interior of the moving frame correspondingly; the bottom of the tin spraying machine main body is fixedly connected with supporting legs, and through the arrangement of a fan, an air pipe and an air cover, the tin spraying effect is improved, the qualified rate of PCB quality is guaranteed, and the phenomenon that tin falls off due to low solidification speed and dust is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tin spraying machines, in particular to a PCB board tin spraying machine. Background Art

[0002] PCB, also known as printed circuit board, is the provider of electrical connections for electronic components. It has a history of more than 100 years; its design is mainly layout design; the main advantage of using circuit boards is that it greatly reduces wiring and assembly errors, improves the level of automation and production labor rate. In the production process of PCB boards, there is an important step, which is to spray tin on the surface of the PCB board, and at this time, the PCB board is needed.

[0003] The patent document with the prior art publication number CN216269316U provides a PCB board tin spraying machine, including a frame, a board feeding device, a tin spraying device and a hot air leveling device are arranged on the frame, and the hot air leveling device includes an upper air knife and a lower air knife, and the upper air knife and the lower air knife include an air cavity with an air outlet and a heating component arranged in the air cavity, characterized in that: the upper air knife and the lower air knife can be arranged on the frame to be lifted up and down, the lower air knife is arranged perpendicular to the conveying direction of the PCB board, the upper air knife is arranged obliquely to the conveying direction of the PCB board, and a filter net is detachably arranged on the air outlet; and a heat dissipation device is also included, and the heat dissipation device is arranged on the frame; this PCB board tin spraying machine can achieve a better hot air leveling effect, thereby improving the quality of the PCB board. The heat dissipation device effectively performs heat dissipation treatment on the PCB board after spraying tin, thereby improving production.

[0004] However, during the use of the existing PCB board tin spraying machine, since the liquid tin itself has a certain temperature, although it will solidify after being sprayed onto the PCB board, the solidification speed is slow. In addition, due to dust, part of the tin will be off after tin spraying, thereby affecting the tin spraying effect and causing the PCB board to be unqualified in quality. For this reason, we propose a PCB board tin spraying machine. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a PCB board tin spraying machine to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a PCB board tin spraying machine, including a tin spraying machine main body, the front of the tin spraying machine main body is fixedly connected with a conveying mechanism and a storage box, the top of the storage box is fixedly connected with a feeding mechanism, the front and back of the tin spraying machine main body are fixedly connected with a movable tooth plate, the outer side of the movable tooth plate is movably connected with a movable frame, both sides of the movable frame are provided with movable grooves, the two sides of the movable frame are movably connected with the tin spraying main body and the fan through the movable grooves, the bottom of the fan is fixedly connected with an air duct, the bottom end of the air duct is fixedly connected with a wind hood, the inside of the mobile frame is fixedly connected with an adjustment mechanism and a moving mechanism, and the bottom of the tin spraying machine main body is fixedly connected with a supporting leg.

[0009] Preferably, the conveying mechanism includes a driving motor, a conveying cylinder and a conveying belt, the driving motor is fixedly connected to the front of the tin spraying machine body, the driving end of the driving motor is fixedly connected to the conveying cylinder, and the outer side of the conveying cylinder is movably connected to the conveying belt.

[0010] Preferably, the feeding mechanism includes a conveying pump, a tin extraction tube and a conveying tube, one side of the conveying pump is fixedly connected to the conveying tube, the top of the conveying pump is fixedly connected to the tin extraction tube, the tin extraction tube runs through the top of the storage box, and the tin extraction tube is fixedly connected to the tin spraying body.

[0011] Preferably, a tin spray gun is fixedly connected to the bottom of the tin spray body, and a tin spray nozzle is fixedly connected to the bottom of the tin spray gun.

[0012] Preferably, the adjusting mechanism includes an adjusting motor, an adjusting screw and an adjusting nut seat, the adjusting motor is fixedly connected to the inside of the movable frame, the driving end of the adjusting motor is fixedly connected to the adjusting screw, the outer side of the adjusting screw is threadedly connected to the adjusting nut seat, and the adjusting nut seat is fixedly connected to the tin spraying body and the fan respectively.

[0013] Preferably, the moving mechanism includes a moving motor, a driving shaft and a moving gear. The moving motor is fixedly connected to the inside of the moving frame. The driving end of the moving motor is fixedly connected to the driving shaft. The outer side of the driving shaft is fixedly connected to the moving gear. The moving gear is meshingly connected to the moving gear plate.

[0014] (III) Beneficial effects

[0015] The utility model provides a PCB board tin spraying machine, which has the following beneficial effects:

[0016] (1) This type of PCB tin spraying machine is equipped with a fan, an air duct and an air hood. When using the PCB tin spraying machine, the staff places the PCB on the conveyor belt and then starts the driving motor. The driving motor drives the conveyor belt to move through the conveying cylinder to transport the PCB to the tin spraying position. When tin spraying, the moving motor drives the moving gear on the driving shaft to rotate, thereby moving the moving frame left and right and adjusting the position of the tin spraying body. At the same time, the adjusting motor drives the adjusting screw to rotate, and the adjusting nut seat will move forward and backward, respectively driving the tin spraying body and the fan to move forward and backward. , thereby adjusting the tin spraying position. At the same time, the delivery pump extracts the tin in the storage box through the tin extraction pipe, and delivers the tin to the tin spraying body through the delivery pipe, and then sprays it on the PCB board through the tin spraying nozzle of the tin spraying gun. At the same time, the fan generates wind force, and the wind force is delivered to the wind cover through the wind duct, and the wind cover will blow the wind force to the PCB board, blow away the dust on the PCB board, and accelerate the cooling speed of the tin, so that the tin solidifies quickly, which improves the tin spraying effect, ensures the qualified rate of the PCB board quality, and avoids the phenomenon of tin falling off due to slow solidification speed and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the fan of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the mobile frame of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of the main body of the tin spraying machine of the utility model.

[0021] In the figure: 1. Support leg; 2. Tin spraying machine body; 3. Drive motor; 4. Moving gear plate; 5. Moving frame; 501. Adjusting motor; 502. Adjusting screw rod; 503. Adjusting nut seat; 504. Moving motor; 505. Drive shaft; 506. Moving gear; 6. Moving slot; 7. Tin spraying body; 8. Tin spraying gun; 9. Tin spraying nozzle; 10. Fan; 11. Air duct; 12. Air hood; 13. Storage box; 14. Delivery pump; 15. Tin extraction tube; 16. Delivery tube; 17. Delivery cylinder; 18. Conveyor belt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a PCB board tin spraying machine, comprising a tin spraying machine body 2, the front of the tin spraying machine body 2 is respectively fixedly connected with a conveying mechanism and a storage box 13, the top of the storage box 13 is fixedly connected with a feeding mechanism, the front and back of the tin spraying machine body 2 are both fixedly connected with a moving tooth plate 4, the outer side of the moving tooth plate 4 is movably connected with a moving frame 5, both sides of the moving frame 5 are provided with moving grooves 6, the two sides of the moving frame 5 are respectively movably connected with a tin spraying body 7 and a fan 10 through the moving grooves 6, the bottom of the fan 10 is fixedly connected with an air duct 11, the bottom end of the air duct 11 is fixedly connected with a wind cover 12, the inside of the moving frame 5 is respectively fixedly connected with an adjusting mechanism and a moving mechanism, and the bottom of the tin spraying machine body 2 is fixedly connected with a supporting leg 1.

[0024] In the present embodiment, specifically, the conveying mechanism includes a driving motor 3, a conveying cylinder 17 and a conveying belt 18. The driving motor 3 is fixedly connected to the front side of the tin spraying machine body 2. The driving end of the driving motor 3 is fixedly connected to the conveying cylinder 17. The outer side of the conveying cylinder 17 is movably connected to the conveying belt 18. By placing the PCB board on the conveying belt 18 and then starting the driving motor 3, the driving motor 3 drives the conveying belt 18 to move through the conveying cylinder 17 to transport the PCB board to the tin spraying position.

[0025] In the present embodiment, specifically, the feeding mechanism includes a conveying pump 14, a tin extraction tube 15 and a conveying tube 16. The conveying pump 14 is fixedly connected to one side with the conveying tube 16, the conveying pump 14 is fixedly connected to the top with the tin extraction tube 15, the tin extraction tube 15 runs through the top of the storage box 13, the tin extraction tube 15 is fixedly connected to the tin spraying body 7, the conveying pump 14 extracts the tin in the storage box 13 through the tin extraction tube 15, and the tin is transported to the tin spraying body 7 through the conveying tube 16.

[0026] In this embodiment, specifically, a tin spray gun 8 is fixedly connected to the bottom of the tin spray body 7 , and a tin spray nozzle 9 is fixedly connected to the bottom of the tin spray gun 8 , so that tin can be sprayed onto the PCB board through the tin spray nozzle 9 of the tin spray gun 8 .

[0027] In the present embodiment, specifically, the adjusting mechanism includes an adjusting motor 501, an adjusting screw 502 and an adjusting nut seat 503. The adjusting motor 501 is fixedly connected to the inside of the movable frame 5. The driving end of the adjusting motor 501 is fixedly connected to the adjusting screw 502. The outer side of the adjusting screw 502 is threadedly connected to the adjusting nut seat 503. The adjusting nut seat 503 is respectively fixedly connected to the tin spraying body 7 and the fan 10. The adjusting motor 501 drives the adjusting screw 502 to rotate, and the adjusting nut seat 503 will move forward and backward, driving the tin spraying body 7 and the fan 10 to move forward and backward respectively, thereby adjusting the tin spraying position.

[0028] In the present embodiment, specifically, the moving mechanism includes a moving motor 504, a driving shaft 505 and a moving gear 506. The moving motor 504 is fixedly connected to the inside of the moving frame 5. The driving end of the moving motor 504 is fixedly connected to the driving shaft 505. The outer side of the driving shaft 505 is fixedly connected to the moving gear 506. The moving gear 506 is meshingly connected with the moving gear plate 4. The moving motor 504 drives the moving gear 506 on the driving shaft 505 to rotate. The moving gear 506 is meshingly connected with the moving gear plate 4, so that the moving frame 5 moves left and right on the moving gear plate 4.

[0029] Working principle: After the utility model is installed, first check the installation fixation and safety protection of the utility model. When using the PCB board tin spraying machine, the staff puts the PCB board on the conveyor belt 18, and then starts the drive motor 3. The drive motor 3 drives the conveyor belt 18 to move through the conveyor cylinder 17 to transport the PCB board to the tin spraying position. When tin spraying, the mobile motor 504 drives the mobile gear 506 on the drive shaft 505 to rotate, so that the mobile frame 5 moves left and right, and adjusts the position of the tin spraying body 7. At the same time, the adjustment motor 501 drives the adjustment screw 502 to rotate, and the adjustment nut seat 503 will move forward and backward. , respectively driving the tin spraying body 7 and the fan 10 to move forward and backward, thereby adjusting the tin spraying position, and at the same time, the delivery pump 14 extracts the tin in the storage box 13 through the tin extraction tube 15, so that the tin is delivered to the tin spraying body 7 through the delivery tube 16, and then sprayed on the PCB board through the tin spraying nozzle 9 of the tin spraying gun 8. At the same time, the fan 10 generates wind force, and the wind force is delivered to the wind cover 12 through the wind duct 11, and the wind cover 12 will blow the wind force to the PCB board, blow away the dust on the PCB board, and accelerate the cooling speed of the tin, so that the tin is quickly solidified, thus completing the use process of the utility model. The utility model has a simple structure and is safe and convenient to use.

[0030] 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.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A PCB board tin spraying machine, comprising a tin spraying machine body (2), characterized in that: The front of the tin spray machine body (2) is fixedly connected to a conveying mechanism and a storage box (13), the top of the storage box (13) is fixedly connected to a feeding mechanism, the front and back of the tin spray machine body (2) are fixedly connected to a movable tooth plate (4), the outer side of the movable tooth plate (4) is movably connected to a movable frame (5), both sides of the movable frame (5) are provided with movable grooves (6), the two sides of the movable frame (5) are movably connected to the tin spray body (7) and the fan (10) through the movable grooves (6), the bottom of the fan (10) is fixedly connected to an air duct (11), the bottom end of the air duct (11) is fixedly connected to a wind cover (12), the inside of the movable frame (5) is fixedly connected to an adjustment mechanism and a moving mechanism, and the bottom of the tin spray machine body (2) is fixedly connected to a supporting leg (1).

2. The PCB tin spraying machine according to claim 1, characterized in that: The conveying mechanism comprises a driving motor (3), a conveying cylinder (17) and a conveying belt (18); the driving motor (3) is fixedly connected to the front of the tin spraying machine body (2); the driving end of the driving motor (3) is fixedly connected to the conveying cylinder (17); and the outer side of the conveying cylinder (17) is movably connected to the conveying belt (18).

3. The PCB tin spraying machine according to claim 1, characterized in that: The feeding mechanism comprises a delivery pump (14), a tin extraction tube (15) and a delivery tube (16); one side of the delivery pump (14) is fixedly connected to the delivery tube (16); the top of the delivery pump (14) is fixedly connected to the tin extraction tube (15); the tin extraction tube (15) passes through the top of the storage box (13); and the tin extraction tube (15) is fixedly connected to the tin spraying body (7).

4. The PCB tin spraying machine according to claim 1, characterized in that: A tin spray gun (8) is fixedly connected to the bottom of the tin spray body (7), and a tin spray nozzle (9) is fixedly connected to the bottom of the tin spray gun (8).

5. The PCB tin spraying machine according to claim 1, characterized in that: The adjusting mechanism comprises an adjusting motor (501), an adjusting screw rod (502) and an adjusting nut seat (503); the adjusting motor (501) is fixedly connected to the inside of the moving frame (5); the driving end of the adjusting motor (501) is fixedly connected to the adjusting screw rod (502); the outer side of the adjusting screw rod (502) is threadedly connected to the adjusting nut seat (503); and the adjusting nut seat (503) is fixedly connected to the tin spraying body (7) and the fan (10) respectively.

6. The PCB tin spraying machine according to claim 1, characterized in that: The moving mechanism comprises a moving motor (504), a driving shaft (505) and a moving gear (506); the moving motor (504) is fixedly connected to the inside of the moving frame (5); the driving end of the moving motor (504) is fixedly connected to the driving shaft (505); the outer side of the driving shaft (505) is fixedly connected to the moving gear (506); and the moving gear (506) is meshedly connected to the moving gear plate (4).

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