A sieving machine for graphite anode materials
By setting a fixed plate and a surface-contact vibrating component in the graphite anode material screening machine, the problem of screen stress concentration is solved, the screen life is extended, and the screening accuracy and efficiency are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGGUIXIN NEW MATERIAL CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-30
AI Technical Summary
In existing technologies, the contact between vibrating components and screens is mostly point-to-point or line-to-line, which leads to stress concentration in the screen wires under high-frequency impact, resulting in fatigue cracks and affecting screen life and screening accuracy.
By setting fixed plates on both sides of the screen and using the vibration component to form surface contact with the fixed plate, and combining the fixed component and the locking component, multiple fixed positions are formed, which disperses stress and reduces fatigue damage to the screen wire.
It effectively reduces stress concentration in the screen, extends the screen's service life, and improves screening accuracy and production efficiency.
Smart Images
Figure CN224423486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of graphite anode material screening technology, specifically to a graphite anode material screening machine. Background Technology
[0002] In the sieving process of graphite anode materials, screen clogging caused by the accumulation of fine powder is a common problem. Existing technologies often use high-frequency vibration of the screen to clear the blockage, which can improve the clogging problem, but has significant drawbacks:
[0003] The contact between vibrating components and the screen is mostly point-to-point or line-to-line. This direct interaction means that the contact area, under high-frequency impact, is under constant stress concentration due to its extremely small contact surface. This makes the screen wires highly susceptible to fatigue cracks at the contact points. This not only severely impacts the screen's lifespan, significantly increasing replacement frequency and maintenance costs, but also leads to decreased screening accuracy due to screen structure damage, ultimately affecting the quality and production efficiency of graphite anode materials. Utility Model Content
[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a graphite anode material sieving machine to solve the problem in the prior art where the contact area between the vibrating components and the screen is small, and stress concentration leads to fatigue and eventual damage of the screen wires.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a graphite negative electrode material sieving machine, comprising: a screen fixed in a housing, wherein fixed plates are provided on both sides of the screen; a vibrating component, wherein the vibrating component connects the screen and the fixed plates and is fixed by the fixing component; wherein the fixing component forms a first fixing position and a second fixing position on the fixed plate and the screen respectively, and the first fixing position and the second fixing position are connected together by a locking part to form a third fixing position.
[0006] Optionally, the side of the screen is fixed to the inner wall of the box, dividing the box into a first screening chamber and a second screening chamber. The fixing plate is located inside the first screening chamber and the second screening chamber, respectively, and the side of the fixing plate is also fixed to the inner wall of the box.
[0007] Optionally, the screen has several small holes, and the fixing plate also has small holes corresponding to these small holes. The vibrating component is disposed in these small holes and abuts against the inner wall of these small holes to form surface contact.
[0008] Optionally, the vibrating component includes a container having an internal cavity and a lid covering the opening of the internal cavity. An elastic element is provided inside the internal cavity, and a gap exists between the elastic element and the inner wall of the container.
[0009] Optionally, the fixing component includes a first fixing member disposed on both ends of the fixing plate. The first fixing member is threadedly connected to the outer wall of the container. The side of the first fixing member close to the fixing plate is in close contact with the end face of the fixing plate to form a first fixing position.
[0010] Optionally, the fixing component further includes a second fixing member disposed on both ends of the screen, wherein the side of the second fixing member close to the screen and the end face of the screen are in close contact to form a second fixing position.
[0011] Optionally, the locking part passes through the first fixing member, the fixing plate, the second fixing member, and the screen, and is fastened by screws. The locking part and the through surface of the first fixing member, the fixing plate, the second fixing member, and the screen are in close contact to form a third fixing position.
[0012] Optionally, the first fixing member has a notch on the side near the fixing plate, and the second fixing member also has a notch on the side near the screen, and flexible washers are provided in these notches.
[0013] Optionally, both the first and second fixing members have beveled edges on their outer side walls.
[0014] Optionally, the box body is provided with a feed inlet, which is connected to the fixing plate through a channel. The box body is also provided with a discharge outlet, which is connected to the first screening chamber and the second screening chamber respectively.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention features fixing plates on both sides of a screen, which are connected to the screen via a vibrating component and then secured using the fixing component. The fixing component creates a first fixing position and a second fixing position on the screen and the fixing plate. Both the first and second fixing positions are surface contacts, significantly increasing the contact area between the vibrating component and the screen compared to traditional point or line contacts. This effectively reduces the stress per unit area.
[0017] Furthermore, the locking part connects the first and second fixing positions to form a third fixing position. The third fixing position can guide the vibration force generated by the vibrating component in the vertical direction, further dispersing the stress that the screen needs to bear.
[0018] Furthermore, the first and second fixing members of this utility model are also provided with inclined sides, which extend towards the fixing plate and the screen, thereby increasing the contact area between the first and second fixing members and the fixing plate and the screen, further reducing the stress borne per unit area. Ultimately, this reduces fatigue damage to the screen wires caused by stress concentration. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of a graphite anode material sieving machine according to the present invention.
[0021] Figure 2 This is a schematic diagram showing the structural relationship between the screen, fixing plate, and fixing components of a graphite negative electrode material sieving machine according to this utility model.
[0022] Figure 3 This is a cross-sectional schematic diagram of a graphite anode material sieving machine according to the present invention.
[0023] Figure 4 This utility model relates to a sieving machine for graphite anode materials. Figure 3 Enlarged view of point A in the middle.
[0024] Figure 5 This is a cross-sectional view of a graphite anode material sieving machine according to the present invention.
[0025] Figure 6 This utility model relates to a sieving machine for graphite anode materials. Figure 5 Enlarged view of point B in the middle.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Box body; 11. Feed inlet; 12. First screening chamber; 13. Second screening chamber; 14. Discharge outlet; 2. Locking part; 3. Screen; 4. Fixing plate; 41. Channel; 5. Fixing component; 51. First fixing position; 52. Second fixing position; 53. Third fixing position; 54. First fixing piece; 55. Second fixing piece; 56. Bevel; 57. Flexible washer; 6. Vibrating component; 61. Container; 62. Elastic component. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] As mentioned earlier, existing screening mechanisms use high-frequency vibration of the screen to clear blockages. The drawback of this method is that the contact between the vibrating component and the screen is mostly point-to-point or line-to-line. This direct action results in a very small contact area under high-frequency impact, leading to long-term stress concentration and making the screen wires prone to fatigue cracks at the contact points. This not only severely affects the screen's lifespan, significantly increasing replacement frequency and maintenance costs, but also reduces screening accuracy due to screen structural damage, ultimately impacting the quality and production efficiency of graphite anode materials.
[0030] To address this issue, this utility model provides a sieving machine applied to the production and sieving of graphite anode materials. The connection between the vibrating component and the screen has been improved, thus solving the aforementioned problems. This utility model solves the problem in the following way.
[0031] Example 1:
[0032] Please refer to the instruction manual appendix. Figures 1 to 6 As shown in the figure, this embodiment provides a graphite anode material screening machine, which includes at least a housing 1, a screen 3, a fixing plate 4, a vibrating component 6, and a fixing component 5. The housing 1 is mounted on the machine body, and a motor on the machine body drives an eccentric block to vibrate continuously, thereby causing the housing 1 to vibrate and achieve screening. The housing 1 also has a feed inlet 11 for introducing graphite anode material for screening. A screen 3 is provided, with an aluminum alloy edging layer hot-pressed around its perimeter, which is fixed to the inner wall of the housing 1. The housing 1 is divided into a first screening chamber 12 and a second screening chamber 13. When the housing 1 vibrates, the screen 3 vibrates accordingly, thus performing screening. The housing 1 also has a discharge port 14, which communicates with both the first screening chamber 12 and the second screening chamber 13.
[0033] In this first embodiment, as Figure 2 As shown, two fixing plates 4 are provided, located on the upper and lower sides of the screen 3 respectively. The sides of the fixing plates 4 are also fixed to the inner wall of the housing 1. The fixing plates 4 are cross-shaped, with an annular opening in the middle. This opening and the feed inlet 11 are connected by a channel 41 (channel 41 is shown in the figure). Figure 3 or Figure 5 (As shown) The connection allows the graphite anode material to fall directly onto the screen 3 when it enters the box 1 from the feed inlet 11.
[0034] In this first embodiment, as Figure 2 As shown, the screen 3 has several small holes, and the fixing plate 4 also has corresponding small holes. The vibrating component 6 is disposed inside these small holes, and the outer wall of the vibrating component 6 abuts against the inner wall of these small holes, forming a surface contact. It is then fixed by the fixing component 5.
[0035] In this first embodiment, as Figure 4 As shown, the vibrating component 6 includes a container 61 with an internal cavity and a lid covering the opening of the internal cavity. An elastic element 62 (e.g., an elastic ball) is disposed within the internal cavity, and a gap exists between the elastic element 62 and the inner wall of the container 61. This allows the elastic element 62 to impact not only the top and bottom of the container 61 but also the inner wall of the container 61, thereby improving the vibration effect of the vibrating component 6.
[0036] In this first embodiment, as Figure 4 As shown, the fixing component 5 includes a first fixing member 54 disposed on both end faces of the fixing plate 4. The first fixing member 54 is threadedly connected to the outer wall of the container 61. The side of the first fixing member 54 near the fixing plate 4 abuts tightly against the end face of the fixing plate 4 to form a first fixing position 51. The fixing component 5 also includes a second fixing member 55 disposed on both end faces of the screen 3 (the second fixing member 55 is also threadedly connected to the outer wall of the container 61, which keeps the first fixing member 54, the second fixing member 55, and the container 61 relatively fixed). The side of the second fixing member 55 near the screen 3 abuts tightly against the end face of the screen 3 to form a second fixing position 52.
[0037] The locking part 2 has several components, and from top to bottom, these first fixing members 54, fixing plate 4, second fixing members 55 and screen 3 are sequentially inserted and fastened by screws (e.g. Figure 4 As shown, each locking part 2 passes through four first fixing members 54, two second fixing members 55, a screen 3, and two fixing plates 4. Each locking part 2 is provided with 6 screws, which are screwed and fixed to the side of the first fixing member 54 away from the fixing plate 4 and the side of the second fixing member 55 away from the screen 3, respectively. The locking part 2 and the through surfaces of the first fixing members 54, fixing plates 4, second fixing members 55, and screen 3 are in close contact to form a third fixing position 53.
[0038] Therefore, in the specific implementation of this embodiment, the machine body drives the vibration, causing the screen 3 to vibrate. Simultaneously, since the screen 3 remains relatively stationary with the vibrating component 6, the container 61 of the vibrating component 6 also begins to vibrate, causing the elastic element 62 inside to repeatedly bounce within the container 61, creating an impact force and thus achieving the vibration effect. This vibration frequency is different from the vibration frequency generated by the machine body. Therefore, while vibrating, the vibrating component 6 pulls on the screen 3. This pulling force allows the screen 3 to shake off its accumulated graphite negative electrode material while vibrating and screening with the machine body, ensuring cleanliness and preventing clogging. At the same time, the pulling force generated by the vibrating component 6 on the screen 3 is dispersed through the surface contact and dilution of the first fixing position 51 and the second fixing position 52. The contact surface of the third fixing position 53 is perpendicular to the contact surfaces of the first fixing position 51 and the second fixing position 52, allowing the third fixing position 53 to further disperse the stress borne by the first fixing position 51 and the second fixing position 52.
[0039] Example 2:
[0040] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figure 4 or Figure 6 As shown in this second embodiment, the first fixing member 54 has a notch on the side near the fixing plate 4, and the second fixing member 55 also has a notch on the side near the screen 3. Flexible washers 57 are installed within these notches. These flexible washers 57 serve a buffering function. Furthermore, they also create a seal between the outer wall of the container 61, the holes in the first fixing member 54 and the fixing plate 4, and between the outer wall of the container 61, the holes in the second fixing member 55, and the screen 3. This seal prevents graphite negative electrode material from entering and affecting operation.
[0041] Example 3:
[0042] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 4 or Figure 6 As shown in this third embodiment, both the first fixing member 54 and the second fixing member 55 have inclined edges 56 on their outer side walls. The inclined edge 56 of the first fixing member 54 extends from the side away from the fixing plate 4 towards the side closer to the fixing plate 4, while the inclined edge 56 of the second fixing member 55 extends from the side away from the screen 3 towards the side closer to the screen 3. This increases the contact area between the first fixing member 54 and the second fixing member 55 and the fixing plate 4 and the screen 3, respectively, thereby further dispersing the stress.
[0043] In summary, the graphite anode material sieving machine and its various embodiments provided by this utility model have at least the following advantages over the prior art, including but not limited to:
[0044] This invention features fixing plates 4 on both sides of the screen 3, which are connected to the screen 3 via a vibrating component 6 and then fixed using fixing components 5. The fixing components 5 create a first fixing position 51 and a second fixing position 52 on the fixing plates 4 and the screen 3, respectively. Both the first fixing position 51 and the second fixing position 52 are surface contacts, significantly increasing the contact area between the vibrating component 6 and the screen 3 compared to traditional point or line contacts. This effectively reduces the stress per unit area.
[0045] Furthermore, the locking part 2 connects the first fixing position 51 and the second fixing position 52 to form the third fixing position 53. The third fixing position 53 can guide the vibration force generated by the vibrating component 6 in the vertical direction, further dispersing the stress that the screen 3 needs to bear.
[0046] Furthermore, the first fixing member 54 and the second fixing member 55 of this utility model are also provided with inclined sides 56. These inclined sides 56 extend toward the fixing plate 4 and the screen 3, thereby increasing the contact area between the first fixing member 54 and the second fixing member 55 and the fixing plate 4 and the screen 3, further reducing the stress borne per unit area. Ultimately, this reduces fatigue damage to the screen 3 wires caused by stress concentration.
[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A sieving machine for graphite anode materials, characterized in that, include: A screen (3) is fixed inside the box (1), and a fixing plate (4) is provided on both sides of the screen (3). Vibrating component (6), which connects screen (3) and fixing plate (4) and is fixed by fixing component (5); The fixing component (5) forms a first fixing position (51) and a second fixing position (52) on the fixing plate (4) and the screen (3) respectively, and connects the first fixing position (51) and the second fixing position (52) together through the locking part (2) to form a third fixing position (53).
2. The graphite anode material sieving machine as described in claim 1, characterized in that, The side of the screen (3) is fixed to the inner wall of the box (1) and divides the box (1) into a first screening chamber (12) and a second screening chamber (13). The fixing plate (4) is located inside the first screening chamber (12) and the second screening chamber (13) respectively. The side of the fixing plate (4) is also fixed to the inner wall of the box (1).
3. The graphite anode material sieving machine as described in claim 1, characterized in that, The screen (3) has several small holes, and the fixing plate (4) also has small holes corresponding to these small holes. The vibration component (6) is disposed in these small holes and abuts against the inner wall of these small holes to form surface contact.
4. The graphite anode material sieving machine as described in claim 1, characterized in that, The vibrating component (6) includes a container (61) having an internal cavity and a lid covering the opening of the internal cavity. An elastic element (62) is provided inside the internal cavity, and there is a gap between the elastic element (62) and the inner wall of the container (61).
5. A sieving machine for graphite anode materials as described in claim 4, characterized in that, The fixing component (5) includes a first fixing member (54) disposed on both sides of the fixing plate (4). The first fixing member (54) is threadedly connected to the outer wall of the container (61). The side of the first fixing member (54) close to the fixing plate (4) is in close contact with the end face of the fixing plate (4) to form a first fixing position (51).
6. The graphite anode material sieving machine as described in claim 5, characterized in that, The fixing component (5) further includes a second fixing member (55) disposed on both ends of the screen (3). The side of the second fixing member (55) close to the screen (3) is in close contact with the end face of the screen (3) to form a second fixing position (52).
7. A sieving machine for graphite anode materials as described in claim 6, characterized in that, The locking part (2) passes through the first fixing member (54), fixing plate (4), second fixing member (55) and screen (3) and is fastened by screws. The locking part (2) and the through surfaces of the first fixing member (54), fixing plate (4), second fixing member (55) and screen (3) are in close contact to form a third fixing position (53).
8. A sieving machine for graphite anode materials as described in claim 6, characterized in that, The first fixing member (54) has a notch on the side near the fixing plate (4), and the second fixing member (55) also has a notch on the side near the screen (3). Flexible gaskets (57) are provided in these notches.
9. A sieving machine for graphite anode materials as described in claim 6, characterized in that, Both the first fixing member (54) and the second fixing member (55) have beveled edges (56) on their outer side walls.
10. A sieving machine for graphite anode materials as described in claim 1, characterized in that, The box (1) is provided with a feed inlet (11), and the feed inlet (11) and the fixing plate (4) are connected through a channel (41). The box (1) is also provided with a discharge outlet (14), which is connected to the first screening chamber (12) and the second screening chamber (13) respectively.