Tin powder screening device
By using three motors to drive the inverted V-shaped structure of different screens in the tin powder screening device, the precise screening of tin powder particles is achieved, and the problem of mismatch in the vibration frequency in the existing technology is solved, and the screening effect is improved And reduces energy consumption.
Patent Information
- Application Number
- CN202323670591.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Since the existing tin powder screening device can only drive multiple screens to vibrate by one motor, the vibration frequency of tin powder particles of different sizes does not match, resulting in poor screening effect and high energy consumption.
Design a tin powder screening device, using three motors to drive the total screen, the medium screen and the small screen respectively. The vibration frequency is from high to low, which is large, sub-large and small, respectively. Large, medium and small particles are screened respectively. , and more precise screening is achieved through inverted V-shaped structure and multiple discharge ports.
A more accurate screening effect of tin powder particles is achieved, while only one screen is driven by each motor, which significantly reduces energy consumption.
Smart Images
Figure CN222197867U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tin powder preparation, in particular to a tin powder screening device. Background Art
[0002] During the preparation process of tin powder, the centrifugal vibration of the centrifuge makes the tin powder particles form spheres of different sizes. Tin powders of different sizes are suitable for different productions. Therefore, after the tin powder is in a spherical shape, it is usually necessary to screen to separate the tin powders of different sizes. The existing screening device is generally provided with at least two screens and a motor, through which multiple screens are driven to vibrate at the same time to screen tin powder particles of different sizes. Since there is only one motor, the vibration frequency of multiple screens is the same during screening. However, for tin powder particles of different weights, the vibration frequency required during screening is different. For example, the weight of the tin powder on the top screen is the largest, and a larger vibration frequency is required for better screening; while the weight of the tin powder on the lower screen is reduced successively, and the required vibration frequency is also reduced accordingly. In the existing screening equipment, only a larger power motor can vibrate multiple screens at a larger vibration frequency at the same time, and the screening effect is general and relatively energy-consuming. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art and to provide a tin powder screening device with good screening effect and energy saving.
[0004] According to the tin powder screening device of the embodiment of the utility model, it includes a shell and a main screen, a middle screen and a small screen respectively arranged in the shell and arranged in sequence from top to bottom, the main screen is provided with a first motor, the middle screen is provided with a second motor, and the small screen is provided with a third motor, the main screen is provided with a plurality of large screen holes, the middle screen is provided with a plurality of medium screen holes, and the small screen is provided with a plurality of small screen holes, and the vibration frequency of the first motor>the vibration frequency of the second motor>the vibration frequency of the third motor.
[0005] According to some embodiments of the present invention, the main screen, the middle screen and the small screen are respectively in an inverted V-shaped structure.
[0006] According to some embodiments of the utility model, a first discharge port, a second discharge port and a third discharge port are provided on the shell, a first cavity is formed between the total screen and the top of the shell, a second cavity is formed between the middle screen and the top total screen of the shell, and a third cavity is formed between the small screen and the middle screen, the first discharge port is connected to the first cavity, the second discharge port is connected to the second cavity, and the third discharge port is connected to the third cavity.
[0007] According to some embodiments of the present invention, the bottom of the first discharge port is not higher than the edge of the total screen, the bottom of the second discharge port is not higher than the edge of the middle screen, and the bottom of the third discharge port is not higher than the edge of the small screen.
[0008] According to some embodiments of the present invention, the first discharge port, the second discharge port and the third discharge port are respectively and alternately arranged on the side wall of the shell.
[0009] According to some embodiments of the utility model, baffles are hinged on the first discharge port, the second discharge port and the third discharge port respectively, and after the tin powder particles accumulate, the baffles are pushed to move outward, so that the tin powder particles flow to the outside through the corresponding first discharge port, the second discharge port and the third discharge port.
[0010] According to some embodiments of the utility model, the inner wall of the shell is provided with three motor boxes for placing the first motor, the second motor and the third motor, the motor boxes are provided with through holes for passing the corresponding motor shafts of the first motor, the second motor and the third motor, the motor shafts of the first motor, the second motor and the third motor are respectively sleeved with eccentric blocks, and the eccentric blocks are in contact with the corresponding main screen, the middle screen and the small screen.
[0011] The tin powder screening device according to the embodiment of the utility model has at least the following beneficial effects: the weight of the tin powder on the total screen is the largest, and the first motor drives the total screen to vibrate at a larger first vibration frequency to screen out large particles; the weight of the tin powder on the medium screen is second largest, and the second motor drives the medium screen to vibrate at a smaller second vibration frequency to screen out medium particles; the weight of the tin powder on the small screen is relatively small, and the third motor drives the small screen to vibrate at the smallest third vibration frequency to screen out small particles, and the remaining tin powder falls to the bottom of the shell and is collected, so that not only tin powder particles of various sizes can be screened out, but also the three screens can be driven to vibrate by more accurate three vibration frequencies, so that the screening is more accurate and the effect is better; and each motor only needs to drive one corresponding screen, and the three vibration frequencies decrease successively, which is obviously more energy-efficient compared with one motor driving three screens at a maximum vibration frequency.
[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings;
[0014] Figure 1 It is a cross-sectional structural diagram of a tin powder screening device;
[0015] Figure 2 This is a partial structural diagram of the tin powder screening device. DETAILED DESCRIPTION
[0016] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0018] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0019] Reference Figure 1 to Figure 2The utility model discloses a tin powder screening device, comprising a shell 10 and a main screen 21, a middle screen 22 and a small screen 23 which are respectively arranged in the shell 10 and arranged in sequence from top to bottom. The main screen 21 is provided with a first motor 31, the middle screen 22 is provided with a second motor 32, and the small screen 23 is provided with a third motor 33. The main screen 21 is provided with a plurality of large screen holes, the middle screen 22 is provided with a plurality of middle screen holes, and the small screen 23 is provided with a plurality of small screen holes, and the vibration frequency of the first motor 31 is greater than the vibration frequency of the second motor 32 and the vibration frequency of the third motor 33. The tin powder on the total screen 21 weighs the most, and the first motor 31 drives the total screen 21 to vibrate at a larger first vibration frequency to screen out large particles; the tin powder on the medium screen 22 weighs the second most, and the second motor 32 drives the medium screen 22 to vibrate at a smaller second vibration frequency to screen out medium particles; the tin powder on the small screen 23 weighs less, and the third motor 33 drives the small screen 23 to vibrate at the smallest third vibration frequency to screen out small particles, and the remaining tin powder falls to the bottom of the shell 10 and is collected, which not only can screen out tin powder particles of various sizes, but also drives the three screens to vibrate through three more accurate vibration frequencies, making the screening more accurate and the effect better; and each motor only needs to drive one corresponding screen, and the three vibration frequencies decrease successively, which is significantly more energy-efficient than one motor driving three screens at a maximum vibration frequency.
[0020] like Figure 1 The main screen 21, the middle screen 22 and the small screen 23 are respectively in an inverted V-shaped structure. The shell 10 is provided with a first discharge port 11, a second discharge port 12 and a third discharge port 13. A first cavity is formed between the main screen 21 and the top of the shell 10, a second cavity is formed between the middle screen 22 and the top main screen 21 of the shell 10, and a third cavity is formed between the small screen 23 and the middle screen 22. The first discharge port 11 is connected to the first cavity, the second discharge port 12 is connected to the second cavity, and the third discharge port 13 is connected to the third cavity. The screened particles roll down and are collected through the corresponding first discharge port 11, the second discharge port 12 and the third discharge port 13.
[0021] Furthermore, the bottom of the first discharge port 11 is not higher than the edge of the main screen 21, the bottom of the second discharge port 12 is not higher than the edge of the middle screen 22, and the bottom of the third discharge port 13 is not higher than the edge of the small screen 23, so that the screened particles can roll to the discharge port for collection.
[0022] Furthermore, the first discharge port 11 , the second discharge port 12 and the third discharge port 13 are respectively arranged alternately on the side wall of the shell 10 , so as to facilitate the arrangement of a material receiving device connected with the corresponding discharge ports around the shell 10 .
[0023] Furthermore, baffles 14 are hinged on the first discharge port 11, the second discharge port 12 and the third discharge port 13 respectively. After the tin powder particles are accumulated, the baffles 14 are pushed to move outward, so that the tin powder particles flow to the outside through the corresponding first discharge port 11, the second discharge port 12 and the third discharge port 13. When the screening has not yet started or has just started to screen the particles, the baffles 14 hang down to block the discharge port to prevent external dust from entering, and also to prevent internal particles that do not meet the corresponding specifications from passing through the discharge port.
[0024] In some embodiments, the inner wall of the shell 10 is provided with three motor boxes 15 for placing the first motor 31, the second motor 32, and the third motor 33. The motor box 15 is provided with through holes for passing the corresponding motor shafts of the first motor 31, the second motor 32, and the third motor 33. The motor shafts of the first motor 31, the second motor 32, and the third motor 33 are respectively provided with eccentric blocks 40. The eccentric blocks 40 are in contact with the corresponding main screen 21, the middle screen 22, and the small screen 23 to achieve vibration, and the structure is simple.
[0025] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.
[0026] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A tin powder screening device, characterized in that: include: A housing (10) and a main screen (21), a middle screen (22) and a small screen (23) respectively arranged in the housing (10) and arranged in sequence from top to bottom, the main screen (21) being provided with a first motor (31), the middle screen (22) being provided with a second motor (32), and the small screen (23) being provided with a third motor (33), the main screen (21) being provided with a plurality of large screen holes, the middle screen (22) being provided with a plurality of medium screen holes, and the small screen (23) being provided with a plurality of small screen holes, and the vibration frequency of the first motor (31) being greater than the vibration frequency of the second motor (32) and greater than the vibration frequency of the third motor (33); The inner wall of the housing (10) is provided with three motor boxes (15) for accommodating the first motor (31), the second motor (32) and the third motor (33); the motor box (15) is provided with through holes for passing the corresponding motor shafts of the first motor (31), the second motor (32) and the third motor (33); the motor shafts of the first motor (31), the second motor (32) and the third motor (33) are respectively sleeved with eccentric blocks (40); the eccentric blocks (40) are in contact with the corresponding main screen (21), the middle screen (22) and the small screen (23).
2. The tin powder screening device according to claim 1, characterized in that: The main screen (21), the middle screen (22) and the small screen (23) are respectively in an inverted V-shaped structure.
3. The tin powder screening device according to claim 2, characterized in that: The shell (10) is provided with a first discharge port (11), a second discharge port (12) and a third discharge port (13); a first cavity is formed between the total screen (21) and the top of the shell (10); a second cavity is formed between the middle screen (22) and the total screen (21) at the top of the shell (10); a third cavity is formed between the small screen (23) and the middle screen (22); the first discharge port (11) is in communication with the first cavity, the second discharge port (12) is in communication with the second cavity, and the third discharge port (13) is in communication with the third cavity.
4. The tin powder screening device according to claim 3, characterized in that: The bottom of the first discharge port (11) is not higher than the edge of the main sieve (21), the bottom of the second discharge port (12) is not higher than the edge of the middle sieve (22), and the bottom of the third discharge port (13) is not higher than the edge of the small sieve (23).
5. The tin powder screening device according to claim 3, characterized in that: The first discharge port (11), the second discharge port (12) and the third discharge port (13) are respectively arranged alternately on the side wall of the shell (10).
6. The tin powder screening device according to claim 4, characterized in that: The first discharge port (11), the second discharge port (12) and the third discharge port (13) are respectively hinged with baffles (14), and after the tin powder particles are accumulated, the baffles (14) are pushed outward to allow the tin powder particles to flow to the outside through the corresponding first discharge port (11), the second discharge port (12) and the third discharge port (13).