Uniform mixing and stirring device for solder paste production

Abstract

The utility model discloses a uniform mixing and stirring device for solder paste production, which relates to the technical field of solder paste production and comprises a support frame, the inner wall of the support frame is fixedly connected with a mixing bin mechanism, the top of the support frame is fixedly connected with a lifting mechanism, one side of the lifting mechanism is fixedly connected with a mixing mechanism, and the other side of the lifting mechanism is fixedly connected with a stirring mechanism. And the surface of the mixing mechanism is fixedly connected with a scraping mechanism. Through the arrangement of the lifting mechanism, when the interior of the device is cleaned, the mixing mechanism and the bin cover can be lifted under the action of rotation of the threaded rod, so that the mixing mechanism does not need to be manually lifted in the cleaning process, and the device is more convenient to use; meanwhile, the mounting disc is in threaded connection with the stirring rod, and the mounting block is in threaded connection with the rotating block, so that when the stirring rod or the stirring blades are fractured due to overlarge stress, the fractured part can be independently disassembled for replacement, the whole replacement is not needed, and the stirring device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of solder paste production, in particular to a uniform mixing and stirring device for solder paste production. Background Art

[0002] Solder paste is also called solder paste. It is a gray paste. Solder paste is a new type of welding material that came into being with SMT. It is a paste mixture formed by mixing solder powder, flux and other surfactants, thixotropic agents, etc. The raw materials need to be stirred and mixed during the production of solder paste, and usually a mixing and stirring device is required for stirring.

[0003] For example, the Chinese patent publication number CN220071473U discloses a mixing and stirring device for solder paste production, including a stirring box, an anti-overflow cover and a feeding pipe, the bottom end of the anti-overflow cover is movably installed on the top of the stirring box, the feeding pipe is arranged inside the anti-overflow cover, the bottom end of the anti-overflow cover is provided with a protective cover, the outer surface of the protective cover is in contact with the inner wall of the stirring box, the top of the anti-overflow cover is provided with a top plate, a servo motor is provided on one side of the bottom of the top plate, and an auxiliary rod is provided on the other side of the bottom of the top plate. By providing a servo motor, a protective cover, a rotating rod, a first scraper, a second extension rod and a second scraper, the servo motor is started, and the rotating rod and the stirring column are connected to each other by a conveyor belt to prevent the solder paste from colliding with the inner wall of the stirring box and being sunken. The second scraper will also rotate under the rotation of the stirring column, so as to scrape off the solder paste raw materials attached to the inner wall of the protective cover, thereby avoiding the subsequent solidification of the solder paste raw materials and making them difficult to clean.

[0004] Although the above example can increase the contact area with the solder paste and thus improve the stirring effect by setting an annular tube, the density of the solder paste is relatively large, resulting in excessive resistance to the stirring rod during stirring. During long-term stirring, the stirring rod is prone to breakage, and the stirring components in existing stirring devices are mostly one-piece structures. When a single stirring rod breaks, the entire stirring component needs to be replaced, which is inconvenient to use. At the same time, when cleaning the device after stirring, the stirring component needs to be manually lifted, and the weight of the stirring component is relatively large, making it difficult for workers to manually lift the stirring component. Utility Model Content

[0005] The utility model provides a uniform mixing and stirring device for solder paste production to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A uniform mixing and stirring device for solder paste production comprises a support frame, an inner wall of the support frame is fixedly connected to a mixing bin mechanism, a top of the support frame is fixedly connected to a lifting mechanism, one side of the lifting mechanism is fixedly connected to a mixing mechanism, and a surface of the mixing mechanism is fixedly connected to a scraping mechanism.

[0008] A further improvement of the technical solution of the utility model is that the mixing bin mechanism includes a bin body, the surface of the bin body is fixedly connected to the inner wall of the support frame, the bottom of the inner cavity of the bin body is fixedly connected to a discharge pipe, the bottom of the inner cavity of the bin body is fixedly connected to a support rod, and the top of the support rod is fixedly connected to a conveying cylinder.

[0009] A further improvement of the technical solution of the utility model is that the lifting mechanism includes a sliding rod, the bottom of the sliding rod is fixedly connected to the top of the support frame, the top of the sliding rod is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a motor 1, the bottom of the motor 1 shaft is fixedly connected to a threaded rod, and the bottom of the threaded rod is rotatably connected to the top of the support frame.

[0010] A further improvement of the technical solution of the utility model is that a lifting plate is threadedly connected to the surface of the threaded rod, the interior of the lifting plate is slidably connected to the surface of the sliding rod, and a bin cover is fixedly connected to the bottom of the lifting plate.

[0011] A further improvement of the technical solution of the utility model is that the mixing mechanism includes a second motor, the bottom of the second motor shaft is fixedly connected to a rotating shaft, the surface of the rotating shaft is fixedly connected to a spiral blade, and the diameter of the spiral blade is slightly smaller than the diameter of the inner cavity of the conveying cylinder.

[0012] A further improvement of the technical solution of the utility model is that: a mounting plate is fixedly connected to the surface of the rotating shaft, a stirring rod is threadedly connected to the bottom of the mounting plate, a mounting block is fixedly connected to the surface of the stirring rod, a rotating block is threadedly connected to the internal thread of the mounting block, and a stirring blade is rotatably connected to the end of the rotating block away from the mounting block.

[0013] A further improvement of the technical solution of the utility model is that the scraping mechanism comprises a fixing member, one side of the fixing member is connected to the surface of the mounting plate by bolts, and the inner wall of the fixing member is overlapped with a connecting member.

[0014] A further improvement of the technical solution of the utility model is that one side of the connecting member is in close contact with the surface of the mounting plate, one side of the connecting member is fixedly connected to a scraping plate, and one side of the scraping plate is fixedly connected to a rubber strip.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a uniform mixing and stirring device for solder paste production. Through the arrangement of a lifting mechanism, when the inside of the device is cleaned, the mixing mechanism and the bin cover can be lifted up under the action of the rotation of a threaded rod, so that during the cleaning process, there is no need to manually lift the mixing mechanism, making it more convenient to use. At the same time, the mounting plate and the stirring rod, as well as the mounting block and the rotating block are all threadedly connected. When the stirring rod or the stirring blade is broken due to excessive force, the broken part can be removed separately for replacement without replacing the entire part, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0019] Figure 3 It is a schematic diagram of the structure of the hybrid mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the stirring rod structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the top view of the mixing bin mechanism of the utility model.

[0022] In the figure: 1. support frame; 2. mixing bin mechanism; 21. bin body; 22. discharge pipe; 23. conveying cylinder; 24. support rod; 3. lifting mechanism; 31. sliding rod; 32. fixing plate; 33. motor 1; 34. threaded rod; 35. lifting plate; 36. bin cover; 4. mixing mechanism; 41. motor 2; 42. rotating shaft; 43. spiral blade; 44. mounting plate; 45. stirring rod; 46. mounting block; 47. rotating block; 48. stirring blade; 5. scraping mechanism; 51. fixing piece; 52. connecting piece; 53. scraping plate; 54. rubber strip. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] Example 1

[0025] like Figure 1-5As shown, the utility model provides a uniform mixing and stirring device for solder paste production, including a support frame 1, a mixing bin mechanism 2 is fixedly connected to the inner wall of the support frame 1, a lifting mechanism 3 is fixedly connected to the top of the support frame 1, a mixing mechanism 4 is fixedly connected to one side of the lifting mechanism 3, a scraping mechanism 5 is fixedly connected to the surface of the mixing mechanism 4, the mixing bin mechanism 2 includes a bin body 21, the surface of the bin body 21 is fixedly connected to the inner wall of the support frame 1, a discharge pipe 22 is fixedly connected to the bottom of the inner cavity of the bin body 21, a support rod 24 is fixedly connected to the bottom of the inner cavity of the bin body 21, and the support rod 24 The top is fixedly connected with a conveying cylinder 23, and the lifting mechanism 3 includes a sliding rod 31. The bottom of the sliding rod 31 is fixedly connected with the top of the support frame 1. The top of the sliding rod 31 is fixedly connected with a fixing plate 32. The top of the fixing plate 32 is fixedly connected with a motor 33. The bottom of the rotating shaft of the motor 33 is fixedly connected with a threaded rod 34. The bottom of the threaded rod 34 is rotatably connected to the top of the support frame 1. The surface of the threaded rod 34 is threadedly connected with a lifting plate 35. The interior of the lifting plate 35 is slidably connected to the surface of the sliding rod 31. The bottom of the lifting plate 35 is fixedly connected with a bin cover 36.

[0026] In this embodiment, the raw materials required for the solder paste are placed in the bin body 21, and then under the action of the motor 33, the threaded rod 34 rotates to drive the mixing mechanism 4 and the bin cover 36 to move downward, so that the bin cover 36 covers the top of the bin body 21, and then mixing is performed. When the device needs to be cleaned, under the action of the motor 33 driving the threaded rod 34 to rotate, the lifting plate 35 slides upward along the sliding rod 31, and the bin cover 36 and the mixing mechanism 4 are lifted to make it easier to clean.

[0027] Example 2

[0028] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the mixing mechanism 4 includes a motor 2 41, the bottom of the rotating shaft of the motor 2 41 is fixedly connected to a rotating shaft 42, the surface of the rotating shaft 42 is fixedly connected to a spiral blade 43, the diameter of the spiral blade 43 is slightly smaller than the diameter of the inner cavity of the conveying cylinder 23, the surface of the rotating shaft 42 is fixedly connected to a mounting disk 44, the bottom of the mounting disk 44 is threadedly connected to a stirring rod 45, the surface of the stirring rod 45 is fixedly connected to a mounting block 46, the internal thread of the mounting block 46 is connected to a rotating block 47, and the end of the rotating block 47 away from the mounting block 46 is rotatably connected to a stirring blade 48.

[0029] In this embodiment, under the action of motor 2 41, the rotating shaft 42 rotates so that the mounting plate 44 drives the stirring rod 45 to rotate, so that the solder paste raw materials are mixed and stirred. At the same time, during the stirring process, the stirring rod 45 drives the stirring blade 48 to rotate, and the solder paste raw materials flow along the through holes on the surface of the stirring blade 48, so that the relative movement between the solder paste raw materials is faster and the stirring effect is better. At the same time, during the stirring process, the rotating shaft 42 drives the spiral blade 43 to rotate in the conveying cylinder 23. Under the action of the spiral blade 43, the solder paste raw materials at the bottom of the inner cavity of the warehouse body 21 are continuously conveyed along the conveying cylinder 23 to the upper end of the inner cavity of the warehouse body 21, thereby further improving the stirring effect.

[0030] Example 3

[0031] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the scraping mechanism 5 includes a fixing member 51, one side of the fixing member 51 is bolted to the surface of the mounting plate 44, the inner wall of the fixing member 51 is overlapped with a connecting member 52, one side of the connecting member 52 is tightly attached to the surface of the mounting plate 44, one side of the connecting member 52 is fixedly connected to a scraping plate 53, and one side of the scraping plate 53 is fixedly connected to a rubber strip 54.

[0032] In this embodiment, after the stirring is completed, the discharge pipe 22 is opened to discharge the mixed solder paste from the discharge pipe 22. During the discharge, the mounting plate 44 drives the scraper plate 53 to rotate, so that the rubber strip 54 scrapes the inner wall of the bin body 21, so that the solder paste sticking to the inner wall of the bin body 21 flows down along the rubber strip 54 and is discharged, and the discharge is more thorough. When the stirring rod 45 breaks due to excessive force, the stirring rod 45 can be removed and replaced by rotating the remaining part, and the stirring blade 48 can be removed by rotating the rotating block 47 and installed on the mounting block 46 on the surface of the replaced stirring rod 45, so that it is more convenient to use.

[0033] The following is a detailed description of the working principle of the uniform mixing and stirring device for solder paste production.

[0034] like Figure 1-5As shown, in the process of producing solder paste, the raw materials required for the solder paste are first placed in the bin body 21, and then under the action of the motor 1 33, the threaded rod 34 rotates to drive the mixing mechanism 4 and the bin cover 36 to move downward, so that the bin cover 36 covers the top of the bin body 21, and then under the action of the motor 2 41, the rotating shaft 42 rotates to make the mounting plate 44 drive the stirring rod 45 to rotate, so as to mix and stir the solder paste raw materials. At the same time, during the stirring process, the stirring rod 45 drives the stirring blade 48 to rotate, and the solder paste raw materials flow along the through holes on the surface of the stirring blade 48, so that the relative movement between the solder paste raw materials is faster and the stirring effect is better. At the same time, during the stirring process, the rotating shaft 42 drives the spiral blade 43 to rotate in the conveying cylinder 23. Under the action of the spiral blade 43, the solder paste raw materials at the bottom of the inner cavity of the bin body 21 are continuously conveyed along the conveying cylinder 23 to the bin body 2 1, the upper end of the inner cavity is further improved to improve the stirring effect. After the stirring is completed, the discharge pipe 22 is opened to discharge the mixed solder paste from the discharge pipe 22. During the discharge, the installation disk 44 drives the scraping plate 53 to rotate, so that the rubber strip 54 scrapes the inner wall of the bin body 21, so that the solder paste sticking to the inner wall of the bin body 21 flows down along the rubber strip 54 and is discharged. The discharge is more thorough. When the cleaning device is needed, under the action of the motor 33 driving the threaded rod 34 to rotate, the lifting plate 35 slides upward along the sliding rod 31, and the bin cover 36 and the mixing mechanism 4 are lifted, making it easier to clean. When the stirring rod 45 is broken due to excessive force, the remaining part can be rotated to remove the stirring rod 45 for replacement, and the rotating block 47 can be rotated to remove the stirring blade 48 and install it on the mounting block 46 on the surface of the replaced stirring rod 45, making it easier to use.

[0035] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A uniform mixing and stirring device for solder paste production, comprising a support frame (1), characterized in that: The inner wall of the support frame (1) is fixedly connected to a mixing bin mechanism (2), the top of the support frame (1) is fixedly connected to a lifting mechanism (3), one side of the lifting mechanism (3) is fixedly connected to a mixing mechanism (4), the surface of the mixing mechanism (4) is fixedly connected to a scraping mechanism (5), the mixing bin mechanism (2) comprises a bin body (21), the surface of the bin body (21) is fixedly connected to the inner wall of the support frame (1), the bottom of the inner cavity of the bin body (21) is fixedly connected to a discharge pipe (22), the bottom of the inner cavity of the bin body (21) is fixedly connected to a support rod (24), the top of the support rod (24) is fixedly connected to a conveying cylinder (23), the mixing mechanism ( 4) comprises a second motor (41), the bottom of the rotating shaft of the second motor (41) is fixedly connected to a rotating shaft (42), the surface of the rotating shaft (42) is fixedly connected to a spiral blade (43), the diameter of the spiral blade (43) is slightly smaller than the diameter of the inner cavity of the conveying cylinder (23), the surface of the rotating shaft (42) is fixedly connected to a mounting plate (44), the bottom of the mounting plate (44) is threadedly connected to a stirring rod (45), the surface of the stirring rod (45) is fixedly connected to a mounting block (46), the internal thread of the mounting block (46) is connected to a rotating block (47), and the end of the rotating block (47) away from the mounting block (46) is rotatably connected to a stirring blade (48).

2. The uniform mixing and stirring device for solder paste production according to claim 1, characterized in that: The lifting mechanism (3) comprises a sliding rod (31), the bottom of the sliding rod (31) is fixedly connected to the top of the support frame (1), the top of the sliding rod (31) is fixedly connected to a fixing plate (32), the top of the fixing plate (32) is fixedly connected to a motor 1 (33), the bottom of the rotating shaft of the motor 1 (33) is fixedly connected to a threaded rod (34), and the bottom of the threaded rod (34) is rotatably connected to the top of the support frame (1).

3. The uniform mixing and stirring device for solder paste production according to claim 2, characterized in that: The surface of the threaded rod (34) is threadedly connected with a lifting plate (35), the interior of the lifting plate (35) is slidably connected to the surface of the sliding rod (31), and the bottom of the lifting plate (35) is fixedly connected with a bin cover (36).

4. The uniform mixing and stirring device for solder paste production according to claim 1, characterized in that: The scraping mechanism (5) comprises a fixing member (51), one side of which is bolted to the surface of the mounting plate (44), and a connecting member (52) is overlapped on the inner wall of the fixing member (51).

5. The uniform mixing and stirring device for solder paste production according to claim 4, characterized in that: One side of the connecting member (52) is in close contact with the surface of the mounting plate (44), one side of the connecting member (52) is fixedly connected to a scraping plate (53), and one side of the scraping plate (53) is fixedly connected to a rubber strip (54).

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