A tin paste stirring device for circuit board with convenient discharging

Abstract

This utility model relates to the field of solder paste mixing technology for circuit boards, and discloses a convenient solder paste mixing device for circuit boards, including a mixing tank. An end cap is fixedly connected to the top of the mixing tank, and a feed pipe is fixedly connected to the top of the end cap. A mixing and turning mechanism is provided on the top of the end cap, and a vacuum pump is fixedly connected to the top of the end cap. The mixing and turning mechanism starts the motor, and during the rotation of the rotating frame, it synchronously drives the mixing rack to rotate. Simultaneously, during the continuous rotation of the rotating frame, the rack moves, synchronously driving the gear three to rotate, which in turn drives the mixing blades to rotate. During the continuous rotation, the mixing blades reciprocate, allowing them to stir and mix the internal solder paste. The rotation of the mixing rack also drives the mixing blades to rotate synchronously, thereby further improving the overall mixing effect of the device, reducing the mixing time, and thus improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of solder paste mixing technology for circuit boards, specifically a solder paste mixing device for circuit boards that facilitates material discharge. Background Technology

[0002] Solder paste is a new type of soldering material that emerged with surface mount technology (SMT). It is a paste-like mixture made by mixing solder powder, flux, and other surfactants and thixotropic agents. During long-term storage or transportation, the lead-tin alloy will gradually sink to the bottom of the paste. Therefore, it is necessary to stir it thoroughly before use to ensure that the solder paste composition is uniform and to ensure soldering quality.

[0003] According to the patent application CN211612367 U, "A convenient solder paste mixing device for computer motherboards includes a tank. A cover is connected to the top of the tank. From left to right, the cover has a feed pipe, a motor mounting bracket, and an air pump. A sealing cap is connected to the top of the feed pipe. A motor is connected to the cover via the motor mounting bracket. The output end of the motor is connected to a mixing structure. The mixing structure includes a mixing rod, a first inclined plate, a crossbar, a scraper, and a second inclined plate. A crossbar is on the side wall of the mixing rod. The crossbar has a first inclined plate and a second inclined plate. The other end of the crossbar and the lower end of the mixing rod are both fixedly connected to the scraper. An air outlet pipe is fixedly connected to the air pump. An intermediate pipe is fixedly connected to the bottom of the tank."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] During use, the invention starts the motor, which drives the stirring structure to stir the solder paste. The scraper scrapes the solder paste on the can. The first and second inclined plates have opposite inclination directions, causing different stirring angles for the solder paste in different parts, resulting in good stirring effect. However, in actual use, the device only drives a single shaft to stir, which requires a longer stirring time to complete the stirring of the solder paste, thus reducing the efficiency of the solder paste. Therefore, there is a need to improve the solder paste stirring device for circuit boards with convenient discharge. Utility Model Content

[0006] The purpose of this invention is to provide a convenient solder paste mixing device for circuit boards, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a circuit board solder paste mixing device for easy discharge, comprising a mixing tank, an end cap fixedly connected to the top of the mixing tank, a feed pipe fixedly connected to the top of the end cap, a mixing and turning mechanism provided on the top of the end cap, an air pump fixedly connected to the top of the end cap, and a circulation mechanism provided at the bottom of the mixing tank.

[0008] The mixing and turning mechanism includes a mixing component and a turning component, wherein the turning component is disposed inside the mixing component;

[0009] The stirring assembly includes a fixed frame, which is fixedly connected to the top of the end cap. A motor is fixedly connected to the top of the fixed frame. A gear one is fixedly connected to the output end of the motor. A gear two meshes with the front of the gear one. A rotating frame is fixedly connected to the bottom of the gear two. A stirring rack is fixedly connected to the bottom of the rotating frame to facilitate stirring of the internal solder paste.

[0010] Preferably, the mixing tank and the rotating frame are provided with holes at corresponding positions, and the rotating frame is rotatably connected in the holes to facilitate synchronous rotation of the rotating frame.

[0011] Preferably, the material turning assembly includes a connecting plate, which is fixedly connected to the top of the end cap. A connecting column is fixedly connected to the bottom of the connecting plate. A first bevel gear is fixedly connected to the bottom of the connecting column. A second bevel gear is rotatably connected inside the rotating frame. A third bevel gear is fixedly connected to the side of the second bevel gear. A turntable is fixedly connected to the left side of the third bevel gear. A limiting post is fixedly connected to the left side of the turntable. A retaining frame is movably connected to the outside of the limiting post. A rack is fixedly connected to the bottom of the retaining frame. A third gear meshes with the front of the rack. A stirring blade is fixedly connected to the right side of the third gear. A fixing column is fixedly connected to the bottom of the rotating frame, which facilitates the synchronous rotation of the stirring blade during the rotation of the rotating frame stirring frame.

[0012] Preferably, the second bevel gear meshes with the first bevel gear, and a hole is provided at the corresponding position of the rotating frame and the connecting column, and the connecting column passes through the hole to facilitate synchronously pushing the rack to move.

[0013] Preferably, the fixed column has a hole at the corresponding position of the stirring blade, the stirring blade is rotatably connected in the hole, the gear three is rotatably connected in the inside of the stirring frame, the rack is slidably connected in the inside of the stirring frame, and the third bevel gear is rotatably connected in the inside of the stirring frame, so as to synchronously drive the second bevel gear to rotate.

[0014] Preferably, the circulation mechanism includes a circulation pump, which is fixedly connected to the bottom of the mixing tank. A connecting pipe is fixedly connected to the bottom of the circulation pump. A discharge valve two is fixedly connected to the right side of the connecting pipe. A discharge valve three is fixedly connected to the top of the connecting pipe. A return pipe is fixedly connected to the top of the discharge valve three. A nozzle is fixedly connected to the left side of the return pipe to facilitate the circulation of the internal solder paste, thereby improving its fluidity.

[0015] Preferably, a groove is provided at the position corresponding to the nozzle of the mixing tank, and the nozzle is fixedly connected in the groove to facilitate fixing the nozzle.

[0016] Compared with the prior art, this utility model provides a convenient solder paste mixing device for circuit boards, which has the following advantages:

[0017] 1. This convenient solder paste mixing device for circuit boards, through a set mixing and turning mechanism, starts the motor and drives the mixing frame to rotate synchronously during the rotation of the rotating frame. Simultaneously, as the rotating frame continues to rotate, the rack moves, driving the gear three to rotate synchronously. The gear three then drives the mixing blades to rotate synchronously, and during its continuous rotation, the mixing blades reciprocate, allowing them to agitate and mix the internal solder paste. The rotation of the mixing frame also drives the mixing blades to rotate synchronously, thereby further improving the overall mixing effect of the device, reducing the mixing time, and thus increasing work efficiency.

[0018] 2. The circuit board solder paste mixing device that facilitates material discharge uses a circulation mechanism to draw a portion of the solder paste into the return pipe through a connecting pipe by starting a circulation pump, and then returns it to the mixing tank through a nozzle for thorough mixing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0021] Figure 2 This is a front sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the external structure of the mixing and turning mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the unfolded structure of the stirring assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of the unfolded structure of the material turning component of this utility model;

[0025] Figure 6 This is a schematic diagram of the external structure of the circulation mechanism of this utility model.

[0026] In the diagram: 1. Mixing tank; 2. End cap; 3. Feed pipe; 4. Mixing and turning mechanism; 5. Air pump; 6. Circulation mechanism; 41. Mixing assembly; 42. Turning assembly; 411. Fixing frame; 412. Motor; 413. Gear 1; 414. Gear 2; 415. Rotating frame; 416. Mixing rack; 421. Connecting plate; 422. Connecting column; 423. First bevel gear; 424. Second bevel gear; 425. Third bevel gear; 426. Limiting column; 427. Clip frame; 428. Turntable; 429. Rack; 4110. Gear 3; 4111. Mixing blade; 4112. Fixing column; 61. Circulation pump; 62. Connecting pipe; 63. Discharge valve 2; 64. Discharge valve 3; 65. Return pipe; 66. Nozzle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Example 1:

[0030] Based on current technology, this device only uses a motor-driven single-shaft stirring mechanism, which requires a longer stirring time to complete the solder paste mixing process, thus reducing solder paste efficiency. Please refer to [link / reference needed]. Figure 1-6This utility model provides a technical solution: a circuit board solder paste mixing device for easy discharge, including a mixing tank 1, an end cap 2 fixedly connected to the top of the mixing tank 1, a feed pipe 3 fixedly connected to the top of the end cap 2, a mixing and turning mechanism 4 provided on the top of the end cap 2, an air pump 5 fixedly connected to the top of the end cap 2, and a circulation mechanism 6 provided at the bottom of the mixing tank 1.

[0031] The mixing and turning mechanism 4 includes a mixing component 41 and a turning component 42, with the turning component 42 disposed inside the mixing component 41.

[0032] The mixing assembly 41 includes a fixed frame 411, which is fixedly connected to the top of the end cap 2. A motor 412 is fixedly connected to the top of the fixed frame 411. A gear 413 is fixedly connected to the output end of the motor 412. A gear 414 meshes with the front of the gear 413. A rotating frame 415 is fixedly connected to the bottom of the gear 414. A mixing rack 416 is fixedly connected to the bottom of the rotating frame 415 to facilitate mixing the internal solder paste.

[0033] Furthermore, holes are provided at the corresponding positions of the mixing tank 1 and the rotating frame 415, and the rotating frame 415 is rotatably connected in the holes, so as to facilitate the synchronous rotation of the rotating frame 415.

[0034] Furthermore, the material turning assembly 42 includes a connecting plate 421, which is fixedly connected to the top of the end cover 2. A connecting post 422 is fixedly connected to the bottom of the connecting plate 421. A first bevel gear 423 is fixedly connected to the bottom of the connecting post 422. A second bevel gear 424 is rotatably connected inside the rotating frame 415. A third bevel gear 425 is fixedly connected to the side of the second bevel gear 424. A turntable 428 is fixedly connected to the left side of the third bevel gear 425. A limiting post 426 is fixedly connected to the left side of the turntable 428. A retaining frame 427 is movably connected to the outside of the limiting post 426. A rack 429 is fixedly connected to the bottom of the retaining frame 427. A third gear 4110 meshes with the front of the rack 429. A stirring blade 4111 is fixedly connected to the right side of the third gear 4110. A fixing post 4112 is fixedly connected to the bottom of the rotating frame 415 to facilitate the synchronous rotation of the stirring blade 4111 during the rotation of the stirring frame 416 of the rotating frame 415.

[0035] Furthermore, the second bevel gear 424 meshes with the first bevel gear 423, and the rotating frame 415 has a hole at the corresponding position of the connecting column 422, and the connecting column 422 passes through the hole to facilitate the synchronous movement of the rack 429.

[0036] Furthermore, the fixed column 4112 has holes at the corresponding positions of the stirring blade 4111, and the stirring blade 4111 is rotatably connected to the hole. The gear 4110 is rotatably connected to the inside of the stirring frame 416, the rack 429 is slidably connected to the inside of the stirring frame 416, and the third bevel gear 425 is rotatably connected to the inside of the stirring frame 416, so as to synchronously drive the second bevel gear 424 to rotate.

[0037] Example 2:

[0038] Based on the existing technology's need to circulate internal solder paste, please refer to [link / reference]. Figure 6 Furthermore, in conjunction with Embodiment 1, the circulation mechanism 6 includes a circulation pump 61, which is fixedly connected to the bottom of the mixing tank 1. A connecting pipe 62 is fixedly connected to the bottom of the circulation pump 61. A discharge valve 2 63 is fixedly connected to the right side of the connecting pipe 62, and a discharge valve 3 64 is fixedly connected to the top of the connecting pipe 62. A return pipe 65 is fixedly connected to the top of the discharge valve 3 64, and a nozzle 66 is fixedly connected to the left side of the return pipe 65 to facilitate the circulation of the internal solder paste, thereby improving its fluidity.

[0039] Furthermore, a groove is provided at the position corresponding to the nozzle 66 in the mixing tank 1, and the nozzle 66 is fixedly connected in the groove to facilitate fixing the nozzle 66.

[0040] In actual operation, when the device is in use, solder paste is first fed into the mixing tank 1 through the feed pipe 3. The motor 412 is started via the mixing and turning mechanism 4, which drives gear 1 413 to rotate. Gear 1 413 then drives gear 2 414 to rotate, which in turn drives the rotating frame 415 to rotate. During the rotation of the rotating frame 415, the mixing rack 416 rotates synchronously. Simultaneously, as the rotating frame 415 continues to rotate, the mixing rack 416 rotates synchronously, causing the second bevel gear 424 to revolve. During this revolve, because the first bevel gear 423 meshes with the second bevel gear 424, the second bevel gear 424 rotates on its own axis. This, in turn, drives the third bevel gear 425 to rotate, which in turn drives the turntable 428 to rotate. The rotation of the turntable 428 then moves the limiting post 426, causing... Its limiting post 426 synchronously pushes the clamping frame 427 downward, causing the clamping frame 427 to synchronously drive the rack 429 downward. In turn, during the movement of the rack 429, it synchronously drives the gear three 4110 to rotate, which in turn drives the stirring blade 4111 to rotate. During its continuous rotation, it synchronously drives the stirring blade 4111 to rotate back and forth, enabling the stirring blade 4111 to stir and mix the internal solder paste. During the rotation of the stirring frame 416, it also drives the stirring blade 4111 to rotate synchronously, thereby further improving the overall mixing effect of the device. At the same time, through the set circulation mechanism 6, by starting the circulation pump 61, a portion of the solder paste is drawn into the return pipe 65 through the connecting pipe 62 and returned to the mixing tank 1 through the nozzle 66 for thorough mixing. During this process, the discharge valve two 63 is closed and the discharge valve three 64 is opened. In the subsequent discharge process, it is only necessary to close the discharge valve three 64 and open the discharge valve two 63 to transport the mixed solder paste out of the mixing tank 1.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A convenient solder paste mixing device for circuit boards, comprising a mixing tank (1), characterized in that: The mixing tank (1) is fixedly connected to the top of the end cap (2), the end cap (2) is fixedly connected to the top of the feed pipe (3), the end cap (2) is provided with a stirring and turning mechanism (4), the end cap (2) is fixedly connected to the top of the air pump (5), and the bottom of the mixing tank (1) is provided with a circulation mechanism (6). The stirring and turning mechanism (4) includes a stirring component (41) and a turning component (42), wherein the turning component (42) is disposed inside the stirring component (41); The stirring assembly (41) includes a fixed frame (411), which is fixedly connected to the top of the end cap (2). A motor (412) is fixedly connected to the top of the fixed frame (411). A gear one (413) is fixedly connected to the output end of the motor (412). A gear two (414) meshes with the front of the gear one (413). A rotating frame (415) is fixedly connected to the bottom of the gear two (414). A stirring rack (416) is fixedly connected to the bottom of the rotating frame (415).

2. The circuit board solder paste mixing device for convenient discharge according to claim 1, characterized in that: The mixing tank (1) has holes at corresponding positions to the rotating frame (415), and the rotating frame (415) is rotatably connected to the holes.

3. The circuit board solder paste mixing device for convenient discharge according to claim 1, characterized in that: The material turning assembly (42) includes a connecting plate (421), which is fixedly connected to the top of the end cap (2). A connecting post (422) is fixedly connected to the bottom of the connecting plate (421). A first bevel gear (423) is fixedly connected to the bottom of the connecting post (422). A second bevel gear (424) is rotatably connected inside the rotating frame (415). A third bevel gear (425) is fixedly connected to the side of the second bevel gear (424). 5) A turntable (428) is fixedly connected to the left side. A limiting post (426) is fixedly connected to the left side of the turntable (428). A retaining frame (427) is movably connected to the outside of the limiting post (426). A rack (429) is fixedly connected to the bottom of the retaining frame (427). A gear three (4110) meshes with the front of the rack (429). A stirring blade (4111) is fixedly connected to the right side of the gear three (4110). A fixing post (4112) is fixedly connected to the bottom of the rotating frame (415).

4. The circuit board solder paste mixing device for convenient discharge according to claim 3, characterized in that: The second bevel gear (424) meshes with the first bevel gear (423). The rotating frame (415) has a hole at the corresponding position of the connecting post (422), and the connecting post (422) passes through the hole.

5. The circuit board solder paste mixing device for convenient discharge according to claim 3, characterized in that: The fixed column (4112) has a hole at the corresponding position of the stirring blade (4111), and the stirring blade (4111) is rotatably connected in the hole. The gear three (4110) is rotatably connected inside the stirring frame (416), the rack (429) is slidably connected inside the stirring frame (416), and the third bevel gear (425) is rotatably connected inside the stirring frame (416).

6. The circuit board solder paste mixing device for convenient discharge according to claim 1, characterized in that: The circulation mechanism (6) includes a circulation pump (61), which is fixedly connected to the bottom of the mixing tank (1). A connecting pipe (62) is fixedly connected to the bottom of the circulation pump (61). A discharge valve (63) is fixedly connected to the right side of the connecting pipe (62). A discharge valve (64) is fixedly connected to the top of the connecting pipe (62). A return pipe (65) is fixedly connected to the top of the discharge valve (64). A nozzle (66) is fixedly connected to the left side of the return pipe (65).

7. A circuit board solder paste mixing device for convenient discharge according to claim 6, characterized in that: The mixing tank (1) has a groove at the corresponding position of the nozzle (66), and the nozzle (66) is fixedly connected in the groove.

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