Homogenizing device for preparing halogen-free solder paste

Abstract

The utility model relates to the technical field of halogen-free solder paste preparation devices, in particular to a homogenizing device for halogen-free solder paste preparation, which comprises a crushing bin, a sealing bin and a mixing bin, the top of the crushing bin is fixedly connected with a first switch valve, and the middle position of the top of the crushing bin is fixedly connected with a first motor; through the arrangement of the smashing bin, the smashing cutter assembly, the sealing bin, the mixing bin and the stirring rod assembly, the device can screen raw material particles through the smashing bin and the sealing bin, raw materials bonded into blocks are scattered through the smashing cutter assembly, large raw material particles are smashed, and therefore the raw materials are evenly mixed. After raw material particles with the size meeting the requirement fall into the mixing bin, the raw material particles and liquid raw materials are fully stirred through the stirring rod assembly, the raw material particles and the liquid raw materials are fully mixed to form the halogen-free solder paste, the device can fully mix different raw materials, and it is guaranteed that the produced halogen-free solder paste has the good homogenizing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of halogen-free solder paste preparation devices, in particular to a homogenizing device for preparing halogen-free solder paste. Background Art

[0002] Halogen-free solder paste is a halogen-free, lead-free, and no-clean solder paste designed and manufactured specifically for SMT production lines. The product must pass SGS international standard certification. Halogen-free solder paste can be reflowed in an air furnace or in nitrogen. It does not require cleaning after reflow, so it is widely used.

[0003] Halogen-free solder paste requires tin powder and flux to be fully and evenly mixed and made into a paste. However, the raw material particles may be damp and stick together, and the sizes of different raw material particles are somewhat different. Some existing homogenizing devices for preparing halogen-free solder paste can only directly mix and stir multiple raw materials, so that the raw materials that are stuck together cannot be broken up, and the different raw material particles cannot be evenly mixed, resulting in poor homogenization effect of the produced halogen-free solder paste. Therefore, a homogenizing device for preparing halogen-free solder paste is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a homogenizing device for preparing halogen-free solder paste, so as to solve the problem that some existing homogenizing devices for preparing halogen-free solder paste can only directly mix and stir a variety of raw materials, so that the raw materials stuck together cannot be broken up, and different raw material particles cannot be evenly mixed, resulting in poor homogenization effect of the produced halogen-free solder paste.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A homogenizing device for preparing halogen-free solder paste, comprising a crushing bin, a sealing bin and a mixing bin, wherein the top of the crushing bin is fixedly connected to a first switch valve, the middle position of the top of the crushing bin is fixedly connected to a first motor, the bottom spindle of the first motor is rotatably connected to the crushing bin, the bottom spindle of the first motor is fixedly connected to a first rotating shaft, a group of crushing knife assemblies are fixedly connected to the outside of the first rotating shaft, two first soft brushes are fixedly connected to the outside of each group of crushing knife assemblies, the outside of the crushing bin is fixedly connected to a sealing bin, the bottom of the sealing bin is fixedly connected to a second switch valve, the powder A mixing bin is fixedly connected to the bottom end of the rectangular support shaft of the crushing bin, the bottom of the second switch valve is fixedly connected to the mixing bin, a third switch valve is fixedly connected to the top front side of the mixing bin, a second motor is fixedly connected to the top middle position of the mixing bin, the bottom main shaft of the second motor is rotatably connected to the mixing bin, a second rotating shaft is fixedly connected to the outside of the second rotating shaft with a stirring rod assembly, a second soft brush is fixedly connected to the outside of the stirring rod assembly, a fourth switch valve is fixedly connected to the bottom front side of the mixing bin, and a discharge pipe is fixedly connected to the bottom of the fourth switch valve.

[0007] Preferably, there are two crushing bins and two first switch valves, and the crushing bins are composed of a circular barrel and a rectangular support shaft. The bottom of the circular barrel of the crushing bin is fixedly connected to the support shaft, and the bottom and curved side surfaces of the crushing bin are provided with sieve holes. A rotating groove is provided in the middle of the top of the crushing bin, and a feeding port is provided at the top of the crushing bin.

[0008] Preferably, there are two first motors and two first rotating shafts, there are two groups of crushing knife assemblies, each group of crushing knife assemblies is composed of a plurality of horizontally distributed crushing knives, and there are four first soft brushes.

[0009] Preferably, there are two sealing bins and two second switch valves, the sealing bin is a circular barrel structure, a fixing groove is provided on the top of the sealing bin, and a discharge port is provided on the bottom of the sealing bin.

[0010] Preferably, the mixing bin is composed of a circular barrel and a rectangular support shaft, a feed port is provided on the left and right sides of the top of the mixing bin, a liquid filling port is provided on the front side of the top of the mixing bin, and a discharge port is provided on the front side of the bottom of the mixing bin.

[0011] Preferably, the stirring rod assembly is composed of a plurality of horizontally distributed stirring rods, there are two second soft brushes, and the discharge pipe is a bent pipe.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, by providing a crushing bin, a crushing knife assembly, a sealing bin, a mixing bin and a stirring rod assembly, the device can screen the raw material particles through the crushing bin and the sealing bin, break up the raw materials that are stuck together and crush the larger raw material particles through the crushing knife assembly, and after the raw material particles that meet the requirements fall into the mixing bin, they are fully stirred through the stirring rod assembly, so that the raw material particles and the liquid raw material are fully mixed to form a halogen-free solder paste. The device can fully mix different raw materials to ensure that the produced halogen-free solder paste has a better homogenization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the crushing bin structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the mixing bin structure of the utility model.

[0017] In the figure: 1. crushing chamber; 2. first switch valve; 3. first motor; 4. first rotating shaft; 5. crushing knife assembly; 6. first soft brush; 7. sealing chamber; 8. second switch valve; 9. mixing chamber; 10. third switch valve; 11. second motor; 12. second rotating shaft; 13. stirring rod assembly; 14. second soft brush; 15. fourth switch valve; 16. discharge pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A homogenizing device for preparing halogen-free solder paste, comprising a crushing bin 1, a sealing bin 7 and a mixing bin 9, the top of the crushing bin 1 is fixedly connected with a first switch valve 2, the top middle position of the crushing bin 1 is fixedly connected with a first motor 3, the bottom spindle of the first motor 3 is rotatably connected to the crushing bin 1, the bottom spindle of the first motor 3 is fixedly connected with a first rotating shaft 4, the outer side of the first rotating shaft 4 is fixedly connected with a group of crushing knife assemblies 5, the outer side of each group of crushing knife assemblies 5 is fixedly connected with two first soft brushes 6, the outer side of the crushing bin 1 is fixedly connected with a sealing bin 7, the bottom of the sealing bin 7 is fixedly connected with a second switch valve 8, the rectangular support of the crushing bin 1 A mixing bin 9 is fixedly connected to the bottom end of the support shaft, the bottom of the second switch valve 8 is fixedly connected to the mixing bin 9, a third switch valve 10 is fixedly connected to the top front side of the mixing bin 9, a second motor 11 is fixedly connected to the top middle position of the mixing bin 9, the bottom main shaft of the second motor 11 is rotatably connected to the mixing bin 9, the bottom main shaft of the second motor 11 is fixedly connected to a second rotating shaft 12, a stirring rod assembly 13 is fixedly connected to the outer side of the second rotating shaft 12, a second soft brush 14 is fixedly connected to the outer side of the stirring rod assembly 13, a fourth switch valve 15 is fixedly connected to the bottom front side of the mixing bin 9, and a discharge pipe 16 is fixedly connected to the bottom of the fourth switch valve 15.

[0023] There are two crushing bins 1 and two first switch valves 2. The crushing bins 1 are composed of a circular barrel and a rectangular support shaft. The bottom of the circular barrel of the crushing bin 1 is fixedly connected to the support shaft. The bottom and curved side surfaces of the crushing bin 1 are provided with sieve holes. A rotating groove is provided in the middle of the top of the crushing bin 1. A feeding port is provided on the top of the crushing bin 1 to filter the raw material particles. There are two first motors 3 and two first rotating shafts 4. There are two groups of crushing knife assemblies 5. Each group of crushing knife assemblies 5 is composed of a plurality of horizontally distributed crushing knives. There are four first soft brushes 6 to crush the raw material particles. There are two sealing bins 7 and two second switch valves 8. The sealed bin 7 is a circular barrel structure, a fixed groove is provided on the top of the sealed bin 7, and a discharge port is provided at the bottom of the sealed bin 7, which can control the amount of raw material particles entering the mixing bin 9; the mixing bin 9 is composed of a circular barrel and a rectangular support shaft, a feed port is provided on the left and right sides of the top of the mixing bin 9, a liquid filling port is provided on the front side of the top of the mixing bin 9, and a discharge port is provided on the front side of the bottom of the mixing bin 9, so that a variety of raw materials can be mixed and stored, the stirring rod assembly 13 is composed of a plurality of horizontally distributed stirring rods, there are two second soft brushes 14, and the discharge pipe 16 is a bent pipe, which can quickly stir and evenly mix a variety of raw materials.

[0024] Workflow: Turn on the power before use. The device is equipped with an external controller. The external controller can be manually operated to control the first switch valve 2, the first motor 3, the second switch valve 8, the third switch valve 10, the second motor 11 and the fourth switch valve 15 of the device. The above are all prior arts. When using the device, firstly, the third switch valve 10 is opened by the external controller, and a proper amount of liquid raw material is added to the mixing bin 9 through the third switch valve 10, and the second motor 11 is rotated by the external controller, and the second motor 11 drives the second rotating shaft 12 and the stirring rod assembly 13 to rotate, so that the liquid raw materials can be evenly mixed, and the mixing bin 9 is cleaned by the second soft brush 14 to prevent the raw materials from adhering to the inner wall of the mixing bin 9, and then the two first switch valves 2 are opened by the external controller, and different solid raw materials are respectively put into the two crushing bins 1 through the first switch valves 2, and the two first motors 3 are rotated by the external controller, and the first motor 3 drives the first rotating shaft 4 and the crushing knife assembly 5 to rotate, so that the raw materials in the crushing bin 1 can be crushed, and the crushing bin 1 is cleaned by the first soft brush 6 to prevent the raw material particles from blocking the crushing. The raw material particles that meet the requirements are screened in the crushing bin 1 and fall into the sealed bin 7. When a large number of raw material particles are accumulated in the sealed bin 7, the second switch valve 8 can be opened by an external controller to make the raw material particles fall into the mixing bin 9. The opening amplitude of the second switch valve 8 can be controlled to make the raw material particles fall into the mixing bin 9 slowly and evenly. At this time, the stirring rod assembly 13 and the second soft brush 14 continue to rotate, so that the raw material particles and the raw material liquid can be fully mixed. The halogen-free solder paste produced after the mixing is evenly mixed is in a paste state and can be controlled by an external controller. The device opens the fourth switch valve 15 and discharges the halogen-free solder paste through the discharge pipe 16; the device can screen the raw material particles through the crushing bin 1 and the sealing bin 7, break up the raw materials that are stuck together and crush the larger raw material particles through the crushing knife assembly 5 and the first soft brush 6, and after the raw material particles that meet the requirements fall into the mixing bin 9, they are fully stirred through the stirring rod assembly 13 and the second soft brush 14, so that the raw material particles and the liquid raw material are fully mixed to form the halogen-free solder paste. The device can fully mix different raw materials to ensure that the produced halogen-free solder paste has a good homogenization effect.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A homogenizing device for preparing halogen-free solder paste, comprising a crushing chamber (1), a sealing chamber (7) and a mixing chamber (9), characterized in that: The top of the crushing bin (1) is fixedly connected to a first switch valve (2); the middle position of the top of the crushing bin (1) is fixedly connected to a first motor (3); the bottom main shaft of the first motor (3) is rotatably connected to the crushing bin (1); the bottom main shaft of the first motor (3) is fixedly connected to a first rotating shaft (4); the outer side of the first rotating shaft (4) is fixedly connected to a group of crushing knife assemblies (5); the outer side of each group of crushing knife assemblies (5) is fixedly connected to two first soft brushes (6); the outer side of the crushing bin (1) is fixedly connected to a sealing bin (7); the bottom of the sealing bin (7) is fixedly connected to a second switch valve (8); the bottom end of the rectangular support shaft of the crushing bin (1) is fixedly connected to a mixing bin (9); The bottom of the second switch valve (8) is fixedly connected to the mixing bin (9), the third switch valve (10) is fixedly connected to the front side of the top of the mixing bin (9), a second motor (11) is fixedly connected to the middle position of the top of the mixing bin (9), the bottom main shaft of the second motor (11) is rotatably connected to the mixing bin (9), the bottom main shaft of the second motor (11) is fixedly connected to a second rotating shaft (12), the outer side of the second rotating shaft (12) is fixedly connected to a stirring rod assembly (13), the outer side of the stirring rod assembly (13) is fixedly connected to a second soft brush (14), the bottom front side of the mixing bin (9) is fixedly connected to a fourth switch valve (15), and the bottom of the fourth switch valve (15) is fixedly connected to a discharge pipe (16).

2. The homogenizing device for preparing halogen-free solder paste according to claim 1, characterized in that: There are two crushing bins (1) and two first switch valves (2). The crushing bins (1) are composed of a circular barrel and a rectangular support shaft. The bottom of the circular barrel of the crushing bin (1) is fixedly connected to the support shaft. The bottom surface and the curved side surface of the crushing bin (1) are provided with sieve holes. A rotating groove is provided in the middle of the top of the crushing bin (1). A feeding port is provided at the top of the crushing bin (1).

3. The homogenizing device for preparing halogen-free solder paste according to claim 1, characterized in that: There are two first motors (3) and two first rotating shafts (4), there are two groups of crushing knife assemblies (5), each group of crushing knife assemblies (5) is composed of a plurality of horizontally distributed crushing knives, and there are four first soft brushes (6).

4. The homogenizing device for preparing halogen-free solder paste according to claim 1, characterized in that: There are two sealing bins (7) and two second switch valves (8). The sealing bin (7) is a circular barrel structure. A fixing groove is provided at the top of the sealing bin (7), and a discharge port is provided at the bottom of the sealing bin (7).

5. The homogenizing device for preparing halogen-free solder paste according to claim 1, characterized in that: The mixing bin (9) is composed of a circular barrel and a rectangular support shaft. A feed port is provided on the left and right sides of the top of the mixing bin (9). A liquid filling port is provided on the front side of the top of the mixing bin (9). A discharge port is provided on the front side of the bottom of the mixing bin (9).

6. The homogenizing device for preparing halogen-free solder paste according to claim 1, characterized in that: The stirring rod assembly (13) is composed of a plurality of stirring rods distributed horizontally, the second soft brushes (14) are provided with two, and the discharge pipe (16) is a bent pipe.

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