Connecting joint for mixing grinding fluid
The circulation pipeline system, consisting of a suction head and a circulation pump, solves the problem of unstable mixing in existing grinding slurries, achieving efficient and uniform mixing and ensuring stable performance of the grinding slurry.
Patent Information
- Application Number
- CN202423096875.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing grinding fluid mixing methods rely on manual and semi-automatic mechanical stirring, resulting in high costs and unstable mixing, which may affect the performance of the grinding fluid.
The suction pipeline consists of a suction head, connecting pipe, main interface and circulation pump. The return pipeline consists of a circulation pump, return interface, inner cavity of connecting cylinder and guide ring, forming a circulation pipeline for circulating mixing of grinding fluid.
It ensures the stability of the grinding fluid, replaces mechanical stirring, and improves mixing uniformity and efficiency.
Smart Images
Figure CN223832132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grinding fluid mixing technology, and specifically to a connecting joint for mixing grinding fluid. Background Technology
[0002] Polishing slurry, also known as chemical mechanical polishing slurry, achieves overall surface smoothing by combining chemical corrosion and mechanical removal—currently the only technology in machining capable of achieving this effect. Existing polishing slurry mixing typically relies on manual labor combined with semi-automatic machinery to stir and mix the slurry in a tank before pumping it to the supplier. This mixing method is not only labor-intensive but also suffers from unstable mixing. Furthermore, mechanical stirring can potentially shear the molecular components in the polishing slurry, weakening its performance and even causing the polishing effect to fail. Utility Model Content
[0003] The purpose of this invention is to provide a connector for mixing grinding fluid. It can form a suction pipeline by means of a suction head, a connecting pipe, a main interface and a circulation pump, and a return pipeline by means of a circulation pump, a return interface, a connecting cylinder cavity and a guide ring. The suction pipeline and the return pipeline together form a circulation pipeline to create a circulating flow field in the mixing cylinder to circulate and mix the grinding fluid, replacing mechanical stirring and thus ensuring the stable performance of the mixed grinding fluid.
[0004] To achieve the above objectives, this utility model provides a connecting joint for mixing grinding fluid, comprising:
[0005] A connecting cylinder is provided at the bottom of the mixing tank. One end of the connecting cylinder extends into the interior of the mixing tank, and the other end of the connecting cylinder extends downward out of the bottom of the mixing tank. The bottom of the connecting cylinder is provided with a main interface connected to the input end of the circulating pump, and the side wall of the connecting cylinder is provided with a return interface connected to the output end of the circulating pump.
[0006] The mixing connector is detachably disposed inside the connecting cylinder. It is provided with a suction head located inside the mixing barrel and protruding from the opening of the connecting cylinder, a connecting pipe connected to the suction head and the main interface respectively, and a drainage ring sleeved on the connecting pipe. The drainage ring has several drainage holes circumferentially open and communicating with the inner cavity of the connecting cylinder.
[0007] The connection joint is configured to form a suction pipeline through the suction head, the connecting pipe, the main interface and the circulation pump, and a return pipeline through the circulation pump, the return interface, the inner cavity of the connecting cylinder and the guide ring. The suction pipeline and the return pipeline cooperate to form a circulation pipeline to mix the grinding liquid in the mixing tank.
[0008] Optionally, the top of the suction head has an outwardly convex arc-shaped structure.
[0009] Optionally, the top of the suction head is provided with two sets of suction holes, the suction holes including a set of inner suction holes evenly arranged in the middle of the top of the suction head and a set of outer suction holes evenly arranged at the top edge of the suction head.
[0010] Optionally, the suction head is funnel-shaped.
[0011] Optionally, there may be gaps between the suction head and the opening of the connecting cylinder, and between the drainage ring and the inner wall of the connecting cylinder.
[0012] Optionally, a connecting plate is provided outside the connecting cylinder, and the connecting plate is located at the bottom of the mixing tank.
[0013] Optionally, a limiting ring is fitted onto the connecting pipe, and the limiting ring is engaged at the bottom of the inner cavity of the connecting cylinder.
[0014] The beneficial effects of this utility model are as follows: the suction pipeline is composed of a suction head, a connecting pipe, a main interface and a circulation pump, and the return pipeline is composed of a circulation pump, a return interface, a connecting cylinder cavity and a guide ring. The suction pipeline and the return pipeline form a circulation pipeline, which creates a circulating flow field in the mixing cylinder to circulate and mix the grinding fluid, replacing mechanical stirring mixing, thereby ensuring the stable performance of the mixed grinding fluid.
[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a schematic cross-sectional view of a connecting joint for mixing grinding fluid according to an embodiment of the present invention;
[0017] Figure 2 This is a schematic structural diagram of a mixing connector for mixing grinding fluid, according to an embodiment of the present invention.
[0018] Figure 3 This is a schematic structural diagram of a connecting joint for mixing grinding fluid, as shown in an embodiment of the present invention.
[0019] In the diagram: 1. Connecting cylinder; 11. Main interface; 12. Return interface; 2. Mixing connector; 21. Suction head; 211. Suction hole; 212. Inner suction small hole; 213. Outer suction large hole; 22. Connecting pipe; 23. Drainage ring; 231. Drainage hole; 24. Limiting ring; 3. Mixing tank; 4. Circulation pump; 5. Connecting plate. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0023] Please see Figures 1 to 3A preferred embodiment of this application shows a connecting joint for mixing grinding fluid, comprising a connecting cylinder 1 and a mixing joint 2. The connecting cylinder 1 is disposed at the bottom of a mixing tank 3, with one end extending into the mixing tank 3 and the other end extending downward beyond the bottom of the mixing tank 3. The bottom of the connecting cylinder 1 is provided with a main interface 11 connected to the input end of a circulation pump 4, and the side wall of the connecting cylinder 1 is provided with a return interface 12 connected to the output end of the circulation pump 4. The mixing joint 2 is detachably disposed inside the connecting cylinder 1 and is provided with a suction head 21 located inside the mixing tank 3 and protruding from the opening of the connecting cylinder 1, a connecting pipe 22 connected to the suction head 21 and the main interface 11 respectively, and a drainage ring 23 sleeved on the connecting pipe 22. The drainage ring 23 has a plurality of drainage holes 231 circumferentially formed, communicating with the inner cavity of the connecting cylinder 1. The connector is configured to form a suction pipeline consisting of a suction head 21, a connecting pipe 22, a main interface 11, and a circulation pump 4, and a return pipeline consisting of the circulation pump 4, a return interface 12, the inner cavity of the connecting cylinder 1, and a guide ring 23. The suction pipeline and the return pipeline work together to form a circulation pipeline to mix the grinding liquid in the mixing tank 3.
[0024] According to the embodiment of this utility model, a suction pipeline is formed by a suction head 21, a connecting pipe 22, a main interface 11, and a circulation pump 4. A return pipeline is formed by the circulation pump 4, a return interface 12, the inner cavity of the connecting cylinder 1, and a guide ring 23. The suction pipeline and the return pipeline together form a circulation pipeline, creating a circulating flow field in the mixing cylinder to circulate and mix the grinding fluid, replacing mechanical stirring, thereby ensuring the stability of the performance of the mixed grinding fluid. It should be noted that the guide ring 23, in conjunction with the guide hole 231, can accelerate the return speed of the grinding fluid when it flows back to the inner cavity of the connecting cylinder 1, allowing the returned grinding fluid to be sprayed back into the mixing tank 3 at a faster speed, thus better circulating and mixing the grinding fluid in the mixing tank 3, resulting in a more uniform mixing effect.
[0025] The following detailed description uses specific examples:
[0026] Please see Figure 2 The suction head 21 has an outwardly convex arc-shaped structure at its top. Two sets of suction holes 211 are provided at the top of the suction head 21. Each suction hole 211 includes a set of small inner suction holes 212 evenly distributed in the middle of the top of the suction head 21, and a set of large outer suction holes 213 evenly distributed at the top edge of the suction head 21. By setting the small inner suction holes 212 and the large outer suction holes 213 at different positions on the top, the grinding fluid in the mixing tank 3 can be suctioned from different ranges. By setting the top of the suction head 21 to an arc-shaped structure, the suction range of the suction holes 211 can be expanded, and in conjunction with the backflow of the grinding fluid, the cyclic mixing range of the circulating flow field can be further expanded.
[0027] Please see Figure 2The suction head 21 is funnel-shaped, which can guide the grinding fluid flowing back into the connecting cylinder 1, causing it to spray obliquely out of the opening of the connecting cylinder 1, expanding the reflux range, and thus expanding the cyclic mixing range of the circulating flow field.
[0028] Please see Figure 1 There are gaps between the suction head 21 and the opening of the connecting cylinder 1, and between the guide ring 23 and the inner wall of the connecting cylinder 1. These gaps ensure that the grinding fluid flowing back into the connecting cylinder 1 can smoothly flow back into the mixing tank 3.
[0029] Further, please see Figure 1 and Figure 3 A connecting plate 5 is provided on the outside of the connecting cylinder 1, and the connecting plate 5 is located at the bottom of the mixing tank 3. The connecting plate 5 makes the connecting joint more stable when fixed at the bottom of the mixing tank 3. A limiting ring 24 is fitted on the connecting pipe 22, and the limiting ring 24 is locked at the bottom of the inner cavity of the connecting cylinder 1. The limiting ring 24 can limit the connecting pipe 22, so that the suction head 21 at the top of the connecting pipe 22 protrudes from the opening of the connecting cylinder 1, which facilitates the suction of the grinding fluid.
[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A connecting joint for mixing grinding fluid, characterized in that, include: A connecting cylinder is provided at the bottom of the mixing tank. One end of the connecting cylinder extends into the interior of the mixing tank, and the other end of the connecting cylinder extends downward out of the bottom of the mixing tank. The bottom of the connecting cylinder is provided with a main interface connected to the input end of the circulating pump, and the side wall of the connecting cylinder is provided with a return interface connected to the output end of the circulating pump. The mixing connector is detachably disposed inside the connecting cylinder. It is provided with a suction head located inside the mixing barrel and protruding from the opening of the connecting cylinder, a connecting pipe connected to the suction head and the main interface respectively, and a drainage ring sleeved on the connecting pipe. The drainage ring has several drainage holes circumferentially open and communicating with the inner cavity of the connecting cylinder. The connection joint is configured to form a suction pipeline through the suction head, the connecting pipe, the main interface and the circulation pump, and a return pipeline through the circulation pump, the return interface, the inner cavity of the connecting cylinder and the guide ring. The suction pipeline and the return pipeline cooperate to form a circulation pipeline to mix the grinding liquid in the mixing tank.
2. The connecting joint for mixing grinding fluid according to claim 1, characterized in that, The top of the suction head has an outwardly convex arc-shaped structure.
3. The connecting joint for mixing grinding fluid according to claim 2, characterized in that, The suction head has two sets of suction holes at its top. The suction holes include a set of small inner suction holes evenly distributed in the middle of the top of the suction head and a set of large outer suction holes evenly distributed at the top edge of the suction head.
4. The connecting joint for mixing grinding fluid according to claim 3, characterized in that, The suction head is funnel-shaped.
5. The connecting joint for mixing grinding fluid according to claim 4, characterized in that, There are gaps between the suction head and the opening of the connecting cylinder, and between the drainage ring and the inner wall of the connecting cylinder.
6. The connecting joint for mixing grinding fluid according to claim 1, characterized in that, A connecting plate is provided outside the connecting cylinder, and the connecting plate is located at the bottom of the mixing tank.
7. The connecting joint for mixing grinding fluid according to claim 1, characterized in that, A limiting ring is fitted onto the connecting pipe, and the limiting ring is locked at the bottom of the inner cavity of the connecting cylinder.