Tin powder screening equipment for solder paste
By designing a tin powder screening device and combining vibration and grinding disc agitation technology, the problem of tin powder clumping during screening was solved, achieving efficient tin powder screening, improving screening efficiency and reducing tin powder waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-24
AI Technical Summary
Tin powder tends to clump together during screening, which reduces screening efficiency and makes it difficult for existing equipment to effectively break up and screen it.
The tin powder screening equipment includes a collection hopper, a screen hopper, a screen mesh, a cover, a grinding disc, and a drive mechanism. It uses vibrating screening and grinding disc to break up clumps of tin powder. The lifting cylinder and drive motor are used to bring the grinding disc closer and rotate, breaking up the tin powder to improve screening efficiency.
It improves the sieving efficiency of tin powder, ensuring that tin powder passes through the sieve quickly and reducing tin powder waste and clumping during the sieving process.
Smart Images
Figure CN224025668U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of tin powder processing equipment, especially to a tin powder screening equipment for tin paste. BACKGROUND
[0002] Tin is one of the non-ferrous metals that is highly developed and utilized in China, and is widely used in metallurgy, electronics, electrical appliances, chemical industry, building materials, machinery and food packaging industries. With the continuous development of the lead-free trend in the global range, electronic product manufacturers will apply more tin powder materials to products. At the same time, with the continuous enhancement of environmental protection consciousness, the non-toxic and environmentally friendly properties of tin powder will make it be continuously applied to packaging fields such as medicine, chemical industry, light industry, food, health care and art supplies in the future.
[0003] In the tin paste, tin powder is an important component, and before the tin powder is made into tin paste, the tin powder needs to be screened first, so that the tin powder that does not meet the particle size requirement is screened out, to avoid the quality of the tin paste being unqualified. However, the tin powder is easy to form a group during storage, and the tin powder that forms a group is not easy to pass through the screen mesh during screening of the screening machine, so as to reduce the screening efficiency of the tin powder. SUMMARY
[0004] In order to be able to scatter the tin powder that forms a group, the utility model provides a tin powder screening equipment for tin paste in view of the problems of the prior art.
[0005] The utility model provides a tin powder screening equipment for tin paste, adopts the following technical scheme:
[0006] A tin powder screening equipment for tin paste, including base, be provided with collection hopper and sieve hopper on the base, the sieve hopper is located above the collection hopper, be provided with screen mesh on the sieve hopper, be provided with cover on the sieve hopper, the cover covers the sieve hopper, be provided with grinding disc on the cover, the grinding disc is located in the sieve hopper, be provided with lifting piece for driving the grinding disc to be close to or away from the screen mesh on the cover, be provided with driving piece for driving the grinding disc to rotate on the cover.
[0007] Preferably, the lifting piece includes a lifting cylinder provided on the cover, a mounting seat connected to a piston rod of the lifting cylinder, a rotating shaft rotatably provided on the mounting seat, and the rotating shaft is connected to the grinding disc.
[0008] Preferably, the driving piece includes a driving motor provided on the mounting seat, and an output shaft of the driving motor is connected to the rotating shaft.
[0009] Preferably, the screen mesh and the grinding disc are both circularly arranged, and the diameter of the grinding disc is smaller than the diameter of the screen mesh.
[0010] Preferably, the rotating shaft is eccentrically connected with the grinding disc.
[0011] Preferably, the edge of the grinding disc is provided with a bending part.
[0012] Preferably, the surface of the grinding disc towards the screen is provided with a rib.
[0013] Preferably, the top of the collecting hopper is matched with the bottom of the screen hopper, one side of the screen hopper is rotationally connected with the outer side wall of the collecting hopper, the outer side wall of the collecting hopper is provided with a fixed buckle, the outer side wall of the screen hopper is provided with a fixed hook, and the fixed buckle is buckled with the fixed hook.
[0014] Preferably, one side of the cover is rotationally connected with the outer side wall of the screen hopper, the outer side wall of the screen hopper is provided with a connecting buckle, the outer surface of the cover is provided with a connecting hook, and the connecting buckle is buckled with the connecting hook.
[0015] Therefore, the tin powder screening equipment has the following beneficial technical effects:
[0016] 1. When screening the tin powder, the tin powder is conveyed into the screen hopper through the feeding port, then the vibration motor works to vibrate the collecting hopper and the screen hopper at the same time, and the qualified tin powder can quickly pass through the screen through the vibration effect.
[0017] 2. When the remaining tin powder on the screen is in a lump, the piston rod of the lifting cylinder is retracted to drive the grinding disc to approach the screen, then the driving motor works to drive the grinding disc to rotate, and the grinding disc grinds the lumped tin powder on the screen, so that the remaining tin powder passes through the screen, and the screening efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 It is a schematic diagram of the overall structure of the utility model.
[0019] Fig. 2 It is a schematic diagram of the structure after the cover of the utility model is opened.
[0020] Fig. 3 It is a schematic diagram of the cross section of the utility model.
[0021] In the drawing: 1, base; 2, collecting hopper; 21, fixed buckle; 22, discharge port; 3, screen hopper; 31, screen; 32, fixed hook; 33, connecting buckle; 4, cover; 41, lifting cylinder; 42, mounting seat; 43, rotating shaft; 44, driving motor; 45, connecting hook; 46, feeding port; 5, grinding disc; 51, bending part; 52, rib. DETAILED DESCRIPTION
[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.
[0023] In the description of the present application, it should be pointed out that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly used when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, structure and operation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0024] The utility model discloses a kind of tin powder screening equipment for tin paste, as shown in figure Figs. 1-3 The side wall of the collecting hopper 2 is provided with a discharge port 22, and the side wall of the sieve hopper 3 is provided with a feed port 46. The top of the collecting hopper 2 is attached to the bottom of the sieve hopper 3. One side of the sieve hopper 3 is hinged to the outer side wall of the collecting hopper 2. A fixed hasp 21 is fixedly installed on the outer side wall of the collecting hopper 2. A fixed clasp 32 is fixedly installed on the outer side wall of the sieve hopper 3. The fixed hasp 21 is engaged with the fixed clasp 32. When screening tin powder, the tin powder is conveyed into the sieve hopper 3 through the feed port 46. Then, the vibrating motor works to vibrate the collecting hopper 2 and the sieve hopper 3 simultaneously. The qualified tin powder can quickly pass through the sieve screen 31 through the vibration, so as to complete the screening of the tin powder.
[0025] At the same time, the sieve hopper 3 is provided with a cover 4, which is engaged with the sieve hopper 3. One side of the cover 4 is hinged to the outer side wall of the sieve hopper 3. A connecting hasp 33 is fixedly installed on the outer side wall of the sieve hopper 3. A connecting clasp 45 is fixedly installed on the outer surface of the cover 4. The connecting hasp 33 is engaged with the connecting clasp 45. The cover 4 can seal the sieve hopper 3, so that the tin powder is not easy to scatter out during the screening of the tin powder, causing waste of the tin powder.
[0026] Meanwhile, the cover 4 is provided with a grinding disc 5 located in the sieve hopper 3, the top of the cover 4 is provided with a mounting seat 42, the mounting seat 42 is provided with a rotating shaft 43, one end of the rotating shaft 43 is rotatably borne on the mounting seat 42, the other end of the rotating shaft 43 is movably penetrated through the cover 4 and fixedly connected to the grinding disc 5. Meanwhile, the cover 4 is provided with a lifting piece for driving the grinding disc 5 to approach or move away from the sieve screen 31, specifically, the lifting piece comprises a lifting cylinder 41 fixedly installed on the top of the cover 4, the piston rod of the lifting cylinder 41 is fixedly connected to the mounting seat 42, when the piston rod of the lifting cylinder 41 is elongated, the mounting seat 42 is driven to rise, at the same time, the grinding disc 5 is driven to move away from the sieve screen 31, in addition, the cover 4 is provided with a driving piece for driving the grinding disc 5 to rotate, specifically, the driving piece comprises a driving motor 44 fixedly installed on the mounting seat 42 along the axial length direction of the rotating shaft 43, the output shaft of the driving motor 44 is coaxially fixedly connected to the rotating shaft 43, when the driving motor 44 works, the grinding disc 5 is driven to rotate through the rotating shaft 43, when the tin powder is sieved for a period of time, the remaining tin powder in groups, the piston rod of the lifting cylinder 41 is retracted, the grinding disc 5 is driven to approach the sieve screen 31, then the driving motor 44 works to drive the grinding disc 5 to rotate, and the grinding disc 5 grinds the tin powder in groups on the sieve screen 31, so that the remaining tin powder passes through the sieve screen 31.
[0027] Meanwhile, the sieve screen 31 and the grinding disc 5 are circularly arranged, the diameter of the grinding disc 5 is smaller than that of the sieve screen 31, and the rotating shaft 43 is eccentrically connected to the grinding disc 5, so that the grinding disc 5 can sweep a larger area and repeatedly grind the tin powder in groups, and the effect of dispersing the tin powder is better. In addition, the edge of the grinding disc 5 is integrally formed with a bending portion 51, the bending portion 51 can make the tin powder better enter between the grinding disc 5 and the sieve screen 31. In addition, the surface of the grinding disc 5 facing the sieve screen 31 is integrally formed with a rib 52, the rib 52 is arranged along the diameter direction of the grinding disc 5, and the rib 52 can improve the effect of dispersing the tin powder in groups by the grinding disc 5.
[0028] The implementation principle of the tin powder sieving equipment for tin paste according to the embodiment of the utility model is as follows: when the tin powder is sieved, the tin powder is conveyed into the sieve hopper 3 through the feeding port 46, then the vibration motor works to simultaneously vibrate the material collecting hopper 2 and the sieve hopper 3, so that the qualified tin powder can quickly pass through the sieve screen 31 through the vibration effect, when the tin powder is sieved for a period of time, the remaining tin powder in groups, the piston rod of the lifting cylinder 41 is retracted, the grinding disc 5 is driven to approach the sieve screen 31, then the driving motor 44 works to drive the grinding disc 5 to rotate, and the grinding disc 5 grinds the tin powder in groups on the sieve screen 31, so that the remaining tin powder passes through the sieve screen 31, and the sieving efficiency is higher.
[0029] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment according to the present application technical solution are within the scope of the present application technical solution.
Claims
1. A tin powder screening apparatus for use with a tin paste, characterized by: The utility model provides a kind of screening device, including base (1), the hopper (2) and sieve (3) are provided on the base (1), the sieve (3) is located above the hopper (2), the sieve (3) is provided with screen (31), the sieve (3) is provided with cover (4), the cover (4) covers the sieve (3), the cover (4) is provided with grinding disc (5), the grinding disc (5) is located in the sieve (3), the cover (4) is provided with lifting piece for driving the grinding disc (5) close to or away from the screen (31), the cover (4) is provided with driving piece for driving the grinding disc (5) rotation.
2. The tin powder screening apparatus for a tin paste according to claim 1, wherein: Lifting piece includes lifting cylinder (41) provided on the cover (4), the piston rod of the lifting cylinder (41) is connected with mounting seat (42), the mounting seat (42) is provided with rotating shaft (43), the rotating shaft (43) is connected with the grinding disc (5).
3. The tin powder screening apparatus for a tin paste according to claim 2, wherein: The driving piece includes driving motor (44) provided on the mounting seat (42), the output shaft of the driving motor (44) is connected to the rotating shaft (43).
4. The tin powder screening apparatus for a tin paste according to claim 2, wherein: The screen (31) and the grinding disc (5) are circularly arranged, and the diameter of the grinding disc (5) is smaller than that of the screen (31).
5. The tin powder screening apparatus for a tin paste according to claim 4, wherein: The rotating shaft (43) is eccentrically connected with the grinding disc (5).
6. The tin powder screening apparatus for a tin paste according to claim 1, wherein: The edge of the grinding disc (5) is provided with a bending portion (51).
7. The tin powder screening apparatus for a tin paste according to claim 1, wherein: The surface of the grinding disc (5) facing the screen (31) is provided with a rib (52).
8. The tin powder screening apparatus for a tin paste according to claim 1, wherein: The top of the hopper (2) is attached to the bottom of the sieve (3), one side of the sieve (3) is rotatably connected to the outer side wall of the hopper (2), the outer side wall of the hopper (2) is provided with a fixed buckle (21), the outer side wall of the sieve (3) is provided with a fixed hook (32), and the fixed buckle (21) is engaged with the fixed hook (32).
9. The tin powder screening apparatus for a tin paste according to claim 1, wherein: One side of the cover (4) is rotatably connected to the outer side wall of the sieve (3), the outer side wall of the sieve (3) is provided with a connecting buckle (33), and the outer surface of the cover (4) is provided with a connecting hook (45), and the connecting buckle (33) is engaged with the connecting hook (45).