A solder paste mixer with a wall scraping mechanism

Abstract

This utility model discloses a solder paste mixer with a wall-scraping mechanism, belonging to the technical field of solder paste mixers. It includes a support box, a rotating platform mounted on the support box, a protective box behind the rotating platform, a lifting mechanism inside the protective box, an extension mechanism at the front of the lifting mechanism, and a stirring and wall-scraping mechanism at the front of the extension mechanism. Multiple fixing mechanisms for securing the solder paste container are provided on the top surface of the rotating platform. The stirring and wall-scraping mechanism comprises a side wall scraper, a first bottom scraper, a second bottom scraper, and a stirring paddle. The side wall scraper, the first bottom scraper, and the second bottom scraper, together with the mounting base, revolve around the vertical centerline of the solder paste container, enabling both stirring and scraping away solder paste located on the inner wall of the container. Simultaneously, the stirring paddle rotates, further enhancing the stirring effect.

Description

Technical Field

[0001] This utility model relates to the field of solder paste mixer technology, and in particular to a solder paste mixer with a wall scraping mechanism. Background Technology

[0002] Solder paste is an indispensable raw material in circuit board manufacturing. Since solder paste is mainly composed of tiny spherical lead-tin alloys or other tin alloys and flux, the lead-tin alloys will settle to the bottom of the paste during long-term storage or transportation. Therefore, solder paste needs to be stirred before use.

[0003] Existing solder paste mixers mainly consist of the following parts: a mixing tank clamp: used to fix the solder paste tank and ensure its stability during mixing; and a mixing system: including a motor and a mixing shaft, with the motor driving the mixing shaft to revolve and rotate. The working principle of the solder paste mixer is based on the principle of planetary motion, achieving uniform mixing of solder paste through the mixing action of revolution and rotation. However, in actual use, the solder paste located on the inner wall of the solder paste container is not mixed, resulting in uneven mixing. Utility Model Content

[0004] The purpose of this invention is to provide a solder paste mixer with a wall scraping mechanism, which solves the problem of uneven mixing caused by the solder paste not being mixed on the inner wall of the solder paste container during the use of existing solder paste mixers.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model discloses a solder paste mixer with a wall scraping mechanism, including a support box, a rotating platform on the support box, a protective box on the rear side of the rotating platform, a lifting mechanism inside the protective box, an extension mechanism on the front side of the lifting mechanism, a stirring and wall scraping mechanism on the front side of the extension mechanism, and multiple fixing mechanisms for fixing the solder paste box body on the top surface of the rotating platform.

[0007] Furthermore, a first driving component is provided inside the support box, a first rotating shaft is provided on the bottom surface of the rotating platform, a worm gear is provided on the first rotating shaft, a worm is meshed with one side of the worm gear, and the worm is connected to the first driving component through a transmission assembly.

[0008] Furthermore, the lifting mechanism includes a fourth driving component, which is located inside the protective box near the top. The output end of the fourth driving component is provided with a first transmission wheel, and the inside of the protective box near the bottom is provided with a second transmission wheel. The first transmission wheel and the second transmission wheel are connected by a first synchronous belt. A lifting seat is provided on the first synchronous belt. A first slide rail is provided on the rear wall of the protective box. A first slider matching the first slide rail is provided behind the lifting seat. The extension mechanism is provided in front of the lifting seat.

[0009] Furthermore, the extension mechanism includes a first mounting plate, which is disposed in front of the lifting seat. A second driving member is disposed on the right side of the first mounting plate near the bottom. An extension frame is disposed at the output end of the second driving member. A second slide rail is disposed on the right side of the first mounting plate and above the second driving member. A second slider that matches the second slide rail is disposed on the left side of the extension frame.

[0010] Furthermore, the extension frame includes a movable plate and a second mounting plate vertically connected together. The second slider is provided on the left side of the movable plate, the output end of the second drive component is connected to the second mounting plate, and the stirring and scraping mechanism is provided in front of the second mounting plate.

[0011] Furthermore, the stirring and scraping mechanism includes a support frame, which is disposed in front of the second mounting plate. A stirring and scraping assembly is disposed below the support frame, and a third driving member for driving the stirring and scraping assembly to move is disposed on the top surface of the support frame.

[0012] Furthermore, the stirring and scraping assembly includes a mounting base, with a second rotating shaft connected to the third driving component at its center. A side wall scraper, a first bottom scraper, a second bottom scraper, and a connecting seat are provided on the side wall of the mounting base. A third rotating shaft is rotatably mounted within the connecting seat. A stirring paddle is located at the bottom of the third rotating shaft, and a fourth transmission wheel is located at the top of the third rotating shaft. The third transmission wheel is mounted on the second rotating shaft, and the third and fourth transmission wheels are connected by a second synchronous belt.

[0013] Furthermore, the working radius of the first bottom scraper is greater than that of the second bottom scraper.

[0014] Furthermore, the fixing mechanism includes two fixing plates arranged vertically. The lower fixing plate is connected to the top surface of the rotating platform. Multiple fixing tubes are arranged between the two fixing plates. A clamping tube is arranged inside the fixing tube. A support wheel that contacts the outer wall of the solder paste box is arranged on one side of the clamping tube, and an operating rod is arranged on the other side of the clamping tube.

[0015] Furthermore, the top surface of the tightening tube is provided with a limiting groove, and the fixing plate is provided with a limiting bolt, the bottom end of which extends into the limiting groove.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This utility model is equipped with a stirring and scraping mechanism. The stirring and scraping components in the stirring and scraping mechanism include a side wall scraper, a first bottom scraper, a second bottom scraper, and a stirring paddle. The side wall scraper, the first bottom scraper, the second bottom scraper, and the mounting base revolve together around the vertical center line of the solder paste container. This not only stirs the solder paste but also scrapes and stirs the solder paste located on the inner wall of the solder paste container. At the same time, the stirring paddle can also rotate, further improving the stirring effect. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a front view of the solder paste mixer with a wall scraping mechanism according to this utility model;

[0020] Figure 2 This is a side view of the solder paste mixer with a wall scraping mechanism according to the present invention;

[0021] Figure 3 This is a top view of the solder paste mixer with a wall scraping mechanism according to the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the rotating platform, the first driving component, and the transmission assembly of this utility model;

[0023] Figure 5 This is a cross-sectional view of the rotating platform, worm gear, worm wheel, and first rotating shaft of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the lifting mechanism of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the extension mechanism of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the driving part in the stirring and scraping mechanism of this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the stirring and scraping component of this utility model;

[0028] Figure 10 This is a three-dimensional structural diagram of the fixing mechanism of this utility model;

[0029] Figure 11 This is a partial sectional view of the fixing mechanism of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 1. Support box; 2. Rotating platform; 3. First driving component; 4. Transmission assembly; 5. Worm gear; 6. Worm wheel; 7. First rotating shaft; 8. Support frame; 9. Protective box; 10. Fourth driving component; 11. First transmission wheel; 12. Second transmission wheel; 13. First synchronous belt; 14. Lifting seat; 15. First slide rail; 16. First slider; 17. First mounting plate; 18. Second driving component; 19. Moving plate; 20. Second slide rail; 21. Second slider; 22. Second mounting plate; 23. Support frame; 24. Third driving component; 25. Stirring Scraping assembly; 25-1, Mounting base; 25-2, Side wall scraper; 25-3, First bottom scraper; 25-4, Second bottom scraper; 25-5, Connecting base; 25-6, Stirring paddle; 25-7, Third drive wheel; 25-8, Fourth drive wheel; 25-9, Second synchronous belt; 25-10, Second rotating shaft; 25-11, Third rotating shaft; 26, Fixing mechanism; 26-1, Fixing plate; 26-2, Fixing pipe; 26-3, Tightening pipe; 26-3-1, Limiting groove; 26-4, Operating lever; 26-5, Support wheel; 26-6, Limiting bolt. Detailed Implementation

[0031] like Figure 1-11 As shown, a solder paste mixer with a wall scraping mechanism includes a support box 1. Adjustable feet are installed at the four corners of the bottom surface of the support box 1. A rotating platform 2 is provided on the support box 1. A protective box 9 is provided on the rear side of the rotating platform 2. A support frame 8 is connected to the rear side of the support box 1. The protective box 9 is connected to the top surface of the support frame 8. A lifting mechanism is installed inside the protective box 9. An extension mechanism is installed on the front side of the lifting mechanism. A stirring and wall scraping mechanism is installed on the front side of the extension mechanism. Four fixing mechanisms 26 for fixing the solder paste box are installed on the top surface of the rotating platform 2.

[0032] like Figure 4-5As shown, a first driving component 3 is installed inside the support box 1. The first driving component 3 is a motor. A first rotating shaft 7 is connected to the bottom surface of the rotating platform 2. The first rotating shaft 7 is rotatably connected to the top plate of the support box 1 through a bearing. The first rotating shaft 7 extends into the interior of the support box 1 and is connected to a worm gear 6. A worm 5 is meshed with one side of the worm gear 6. There is a protective shell on the outside of the worm gear 6 and the worm 5. The worm 5 is rotatably connected to the protective shell through a bearing. The end of the worm 5 extends to the outside of the protective shell. The worm 5 is connected to the first driving component 3 through a transmission assembly 4. Specifically, the transmission assembly 4 includes two pulleys, which are respectively installed on the output shaft of the first driving component 3 and the exposed end of the worm 5. The two pulleys are connected by a synchronous belt. In use, the first driving component 3 is started. The first driving component 3 drives the worm 5 to rotate through the transmission assembly 4. The rotation of the worm 5 drives the worm gear 6 to rotate. The rotation of the worm gear 6 drives the first rotating shaft 7 to rotate. The first rotating shaft 7 drives the rotating platform 2 to rotate, thereby switching work positions.

[0033] like Figure 6 As shown, the lifting mechanism includes a fourth driving component 10, which is installed inside the protective box 9 near the top. The fourth driving component 10 is a motor, and a first transmission wheel 11 is installed at the output end of the fourth driving component 10. A second transmission wheel 12 is rotatably installed inside the protective box 9 near the bottom. The first transmission wheel 11 and the second transmission wheel 12 are connected by a first synchronous belt 13. A lifting seat 14 is connected to the first synchronous belt 13. Two first slide rails 15 are installed on the rear wall of the protective box 9. The two first slide rails 15 are located at the... On both sides of a synchronous belt 13, a first slider 16 matching the first slide rail 15 is installed behind the lifting seat 14, and the extension mechanism is installed in front of the lifting seat 14. In use, the fourth drive member 10 is activated, which drives the first transmission wheel 11 to rotate. The first transmission wheel 11 drives the second transmission wheel 12 to rotate through the first synchronous belt 13. During this process, the first synchronous belt 13 moves, thereby driving the lifting seat 14 to rise or fall. During the process of the lifting seat 14 rising or falling, the first slider 16 moves along the first slide rail 15, improving the stability of the lifting process.

[0034] like Figure 7As shown, the extension mechanism includes a first mounting plate 17 connected to the front of the lifting seat 14. A second driving member 18 is installed on the right side of the first mounting plate 17 near the bottom. The second driving member 18 can be an electric push rod, cylinder, etc. The output end of the second driving member 18 is connected to an extension frame. A second slide rail 20 is installed on the right side of the first mounting plate 17 and above the second driving member 18. A second slider 21 matching the second slide rail 20 is installed on the left side of the extension frame. Specifically, the extension frame includes a moving plate 19 and a second mounting plate 22 vertically connected together. The second slider 21 is installed on the left side of the moving plate 19. The output end of the second driving member 18 is connected to the second mounting plate 22. The stirring and scraping mechanism is installed in front of the second mounting plate 22. In use, the working rod of the second driving member 18 extends, driving the extension frame forward and pushing the stirring and scraping mechanism to the working position. When not in use, the working rod of the second driving member 18 retracts, driving the extension frame backward.

[0035] like Figure 8-9 As shown, the stirring and scraping mechanism includes a support frame 23 connected to the front of the second mounting plate 22. A stirring and scraping assembly 25 is disposed below the support frame 23. A third driving member 24 for driving the stirring and scraping assembly 25 is mounted on the top surface of the support frame 23. The third driving member 24 is a motor, and a reducer is mounted on the output end of the motor. The stirring and scraping assembly 25 includes a mounting base 25-1. A second rotating shaft 25-10 connected to the output end of the third driving member 24 is connected to the center of the mounting base 25-1 via a key. A side wall scraper 25-2, a first bottom scraper 25-3, and a second bottom scraper 25-4 are mounted on the side wall of the mounting base 25-1. The first bottom scraper 25-3 has a working radius larger than that of the second bottom scraper 25-4. A third rotating shaft 25-11 is rotatably mounted in the connecting seat 25-5 via bearings. A stirring paddle 25-6 is connected to the bottom of the third rotating shaft 25-11. The stirring paddle 25-6 includes four stirring rods connected together at the top, which are evenly distributed in a circle. A fourth transmission wheel 25-8 is mounted on the top of the third rotating shaft 25-11. A third transmission wheel 25-7 is mounted on the second rotating shaft 25-10. The third transmission wheel 25-7 and the fourth transmission wheel 25-8 are connected by a second synchronous belt 25-9.

[0036] In use, the third drive unit 24 is activated, which drives the second rotating shaft 25-10 to rotate. The rotation of the second rotating shaft 25-10 drives the mounting base 25-1 to rotate. The side wall scraper 25-2, the first bottom scraper 25-3, the second bottom scraper 25-4, and the connecting base 25-5 rotate together with the mounting base 25-1. During the rotation, the side wall scraper 25-2 contacts the inner wall of the solder paste container, scraping off the solder paste on the inner wall. The first bottom scraper 25-3 and the second bottom scraper 25-4 agitate the solder paste on the bottom wall of the solder paste container. The first bottom scraper 25-3 and the second bottom scraper 25-4 are both connected to the mounting base 25-1 via connecting rods. During rotation, the connecting rods also act as stirring blades, which can also stir the solder paste. At the same time, when the second rotating shaft 25-10 rotates, it drives the third transmission wheel 25-7 to rotate. The rotation of the third transmission wheel 25-7 drives the fourth transmission wheel 25-8 to rotate via the second synchronous belt 25-9. The rotation of the fourth transmission wheel 25-8 drives the third rotating shaft 25-11 to rotate. The rotation of the third rotating shaft 25-11 drives the stirring paddle 25-6 to rotate together, stirring the solder paste.

[0037] like Figure 10-11 As shown, the fixing mechanism 26 includes two fixing plates 26-1 arranged vertically. The lower fixing plate 26-1 is connected to the top surface of the rotating platform 2. A circular hole is provided in the center of the fixing plate 26-1, and the size of the circular hole is larger than the outer diameter of the solder paste box. Three fixing tubes 26-2 are connected between the two fixing plates 26-1. A movable clamping tube 26-3 is provided inside the fixing tube 26-2. A support wheel 2 is installed on one side of the clamping tube 26-3, which contacts the outer wall of the solder paste box. 6-5, An operating rod 26-4 is installed on the other side of the tightening tube 26-3. The center of the tightening tube 26-3 has an installation hole with threads on the inner wall of the installation hole. The outer wall of the operating rod 26-4 also has threads, and the operating rod 26-4 is threaded into the installation hole. The top surface of the tightening tube 26-3 has an elongated limiting groove 26-3-1. A limiting bolt 26-6 is threaded onto the fixing plate 26-1, and the bottom end of the limiting bolt 26-6 extends into the limiting groove 26-3-1.

[0038] In use, rotate the operating lever 26-4. During the rotation of the operating lever 26-4, it pushes the clamping tube 26-3 to move closer to the solder paste box. Since the bottom end of the limiting bolt 26-6 extends into the limiting groove 26-3-1, it can prevent the clamping tube 26-3 from rotating together with the operating lever 26-4. When the support wheel 26-5 contacts the outer wall of the solder paste box, stop rotating the operating lever 26-4 and rotate the limiting bolt 26-6 so that the limiting bolt 26-6 moves downward and clamps into the limiting groove 26-3-1, locking the position of the clamping tube 26-3.

[0039] The working process of this utility model is as follows:

[0040] First, place the solder paste container in the circular hole in the center of the fixing plate 26-1. Rotate the operating lever 26-4. As the operating lever 26-4 rotates, it pushes the clamping tube 26-3 to move closer to the solder paste container. When the support wheel 26-5 contacts the outer wall of the solder paste container, stop rotating the operating lever 26-4 and rotate the limiting bolt 26-6. This causes the limiting bolt 26-6 to move downwards and clamp into the limiting groove 26-3-1, locking the position of the clamping tube 26-3. The solder paste container is then fixed from three directions using the three clamping tubes 26-3 in the same manner.

[0041] Then, the first drive unit 3 is started. The first drive unit 3 drives the worm 5 to rotate through the transmission component 4. The rotation of the worm 5 drives the worm wheel 6 to rotate. The rotation of the worm wheel 6 drives the first rotating shaft 7 to rotate. The first rotating shaft 7 drives the rotating platform 2 to rotate, rotating the solder paste box to the front of the protective box 9.

[0042] Then, the working rod of the second drive unit 18 extends and drives the extension frame to move forward, pushing the stirring and scraping mechanism to the top of the solder paste box;

[0043] Subsequently, the fourth drive unit 10 is activated, which drives the first transmission wheel 11 to rotate. The first transmission wheel 11 drives the second transmission wheel 12 to rotate via the first synchronous belt 13. During this process, the first synchronous belt 13 moves, thereby driving the lifting seat 14 to descend. The descent of the lifting seat 14 drives the extension mechanism and the stirring and scraping mechanism to descend, so that the stirring and scraping assembly 25 extends into the solder paste box.

[0044] Finally, the third drive unit 24 is activated, which drives the second rotating shaft 25-10 to rotate. The rotation of the second rotating shaft 25-10 drives the mounting base 25-1 to rotate. The side wall scraper 25-2, the first bottom scraper 25-3, the second bottom scraper 25-4, and the connecting base 25-5 rotate together with the mounting base 25-1. During the rotation, the side wall scraper 25-2 contacts the inner wall of the solder paste container, scraping off the solder paste on the inner wall. The first bottom scraper 25-3 and the second bottom scraper 25-4 agitate the solder paste on the bottom wall of the solder paste container. The first bottom scraper 25-3 and the second bottom scraper 25-4 are both connected to the mounting base 25-1 via connecting rods. During rotation, the connecting rods also act as stirring blades, which can also stir the solder paste. At the same time, when the second rotating shaft 25-10 rotates, it drives the third transmission wheel 25-7 to rotate. The rotation of the third transmission wheel 25-7 drives the fourth transmission wheel 25-8 to rotate via the second synchronous belt 25-9. The rotation of the fourth transmission wheel 25-8 drives the third rotating shaft 25-11 to rotate. The rotation of the third rotating shaft 25-11 drives the stirring paddle 25-6 to rotate together, stirring the solder paste.

[0045] After the solder paste in a solder paste container is stirred, the lifting mechanism drives the extension mechanism and the stirring and scraping mechanism to rise, so that the stirring and scraping component 25 is moved out of the solder paste container. Then, the rotating platform 2 rotates to rotate the next solder paste container to the working position. Subsequently, the lifting seat 14 descends, driving the extension mechanism and the stirring and scraping mechanism to descend, so that the stirring and scraping component 25 extends into the solder paste container to carry out the stirring work.

[0046] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A tin cream mixer with a wall scraping mechanism, characterized by: Includes a support box (1), on which a rotating platform (2) is provided, and a protective box (9) is provided on the rear side of the rotating platform (2). A lifting mechanism is provided inside the protective box (9), and an extension mechanism is provided on the front side of the lifting mechanism. A stirring and scraping mechanism is provided on the front side of the extension mechanism. Multiple fixing mechanisms (26) for fixing the solder paste box are provided on the top surface of the rotating platform (2).

2. The solder paste mixer with a wall scraping mechanism according to claim 1, characterized in that: The support box (1) is provided with a first driving component (3), and the bottom surface of the rotating platform (2) is provided with a first rotating shaft (7). A worm wheel (6) is provided on the first rotating shaft (7), and a worm (5) is meshed with one side of the worm wheel (6). The worm (5) is connected to the first driving component (3) through a transmission assembly (4).

3. The solder paste mixer with a wall scraping mechanism according to claim 1, characterized in that: The lifting mechanism includes a fourth driving member (10), which is located inside the protective box (9) near the top. The output end of the fourth driving member (10) is provided with a first transmission wheel (11), and the inside of the protective box (9) near the bottom is provided with a second transmission wheel (12). The first transmission wheel (11) and the second transmission wheel (12) are connected by a first synchronous belt (13). A lifting seat (14) is provided on the first synchronous belt (13). A first slide rail (15) is provided on the rear wall of the protective box (9). A first slider (16) matching the first slide rail (15) is provided behind the lifting seat (14), and the extension mechanism is provided in front of the lifting seat (14).

4. The solder paste mixer with a wall scraping mechanism according to claim 3, characterized in that: The extension mechanism includes a first mounting plate (17), which is located in front of the lifting seat (14). A second driving member (18) is located on the right side of the first mounting plate (17) near the bottom. An extension frame is located at the output end of the second driving member (18). A second slide rail (20) is located on the right side of the first mounting plate (17) and above the second driving member (18). A second slider (21) matching the second slide rail (20) is located on the left side of the extension frame.

5. The solder paste mixer with a wall scraping mechanism according to claim 4, characterized in that: The extension frame includes a movable plate (19) and a second mounting plate (22) connected vertically together. The second slider (21) is provided on the left side of the movable plate (19). The output end of the second drive member (18) is connected to the second mounting plate (22). The stirring and scraping mechanism is provided in front of the second mounting plate (22).

6. The solder paste mixer with a wall scraping mechanism according to claim 5, characterized in that: The stirring and scraping mechanism includes a support frame (23), which is located in front of the second mounting plate (22). A stirring and scraping assembly (25) is located below the support frame (23), and a third driving member (24) for driving the stirring and scraping assembly (25) to move is located on the top surface of the support frame (23).

7. The solder paste mixer with a wall scraping mechanism according to claim 6, characterized in that: The stirring and scraping assembly (25) includes a mounting base (25-1), a second rotating shaft (25-10) connected to the third driving member (24) is provided at the center of the mounting base (25-1), a side wall scraper (25-2), a first bottom scraper (25-3), a second bottom scraper (25-4) and a connecting seat (25-5) are provided on the side wall of the mounting base (25-1), a third rotating shaft (25-11) is rotatably arranged inside the connecting seat (25-5), a stirring paddle (25-6) is provided at the bottom of the third rotating shaft (25-11), a fourth transmission wheel (25-8) is provided at the top of the third rotating shaft (25-11), a third transmission wheel (25-7) is provided on the second rotating shaft (25-10), and the third transmission wheel (25-7) and the fourth transmission wheel (25-8) are connected by a second synchronous belt (25-9).

8. The solder paste mixer with a wall scraping mechanism according to claim 7, characterized in that: The working radius of the first bottom scraper (25-3) is greater than that of the second bottom scraper (25-4).

9. The solder paste mixer with a wall scraping mechanism according to claim 1, characterized in that: The fixing mechanism (26) includes two fixing plates (26-1) arranged vertically. The lower fixing plate (26-1) is connected to the top surface of the rotating platform (2). A plurality of fixing tubes (26-2) are arranged between the two fixing plates (26-1). A clamping tube (26-3) is arranged inside the fixing tube (26-2). A support wheel (26-5) is arranged on one side of the clamping tube (26-3) and contacts the outer wall of the solder paste box. An operating rod (26-4) is arranged on the other side of the clamping tube (26-3).

10. The solder paste mixer with a wall scraping mechanism according to claim 9, characterized in that: The top surface of the tightening tube (26-3) is provided with a limiting groove (26-3-1), and the fixing plate (26-1) is provided with a limiting bolt (26-6), the bottom end of the limiting bolt (26-6) extends into the limiting groove (26-3-1).

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