Inner diameter surface grinding device
The polishing fluid circulation system of the inner diameter surface grinding device polishes and cleans the tubular workpiece, solving the problem of rough inner diameter surface caused by the cold drawing process, and improving the printing quality and cleaning effect of the print head.
Patent Information
- Application Number
- CN202520136792.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The existing cold-drawn tube process produces capillary tubes with rough inner diameter surfaces, which leads to obstructed printing paths within the printhead and affects print quality.
Design an inner diameter surface grinding device that uses a grinding container, a circulation sleeve and a pump to polish and clean the inner diameter surface of a tubular workpiece with grinding fluid through a circulation system. The device includes an agitator and a brush structure to prevent deposition.
It improves the roughness of the inner diameter surface of tubular workpieces, enhances the printing quality of the print head, and effectively cleans deposits and blockages in the print head.
Smart Images
Figure CN223947625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to 3D printing auxiliary frock technical field, especially, relate to a inner diameter surface grinding device. BACKGROUND
[0002] At present, for the capillary tube with the inner diameter of 1.0mm and below, the cold-drawing capillary tube process (abbreviation: cold-drawing tube process) is used for processing and production for the consideration of cost and efficiency, but it is also limited by the cold-drawing tube process, the wall thickness and the inner diameter precision cannot be guaranteed, the inner diameter surface (inner wall) is relatively rough, so the printing path in the printing head processed and produced by the process is difficult to reach the design smooth, which will seriously affect the printing quality. SUMMARY
[0003] Therefore, the utility model provides an inner diameter surface grinding device to improve the roughness of the inner diameter surface of the capillary tube.
[0004] In some illustrative embodiments, the inner diameter surface grinding device for grinding and polishing the inner diameter surface of a tubular workpiece comprises a grinding container, a circulating sleeve and a pump, wherein the grinding container comprises a cavity containing a grinding liquid, and a liquid inlet and a liquid outlet opened on the grinding container and communicating with the internal cavity thereof; the tubular workpiece is combined with the circulating sleeve to form a combined tube body, and the two ports of the combined tube body are connected to the liquid inlet and the liquid outlet of the grinding container respectively to form a circulating path of the grinding liquid among the grinding container, the circulating sleeve and the tubular workpiece; the pump is arranged on the circulating sleeve and drives the grinding liquid to reciprocally circulate in the circulating path at a set flow rate to flush the inner diameter surface of the tubular workpiece.
[0005] In some optional embodiments, the inner diameter surface grinding device further comprises a sleeve joint embedded in a first pipe opening of the circulating sleeve and the tubular workpiece for tube combination, and the circulating sleeve is connected to the first port of the tubular workpiece through the sleeve joint; a first container joint is embedded in the liquid inlet of the grinding container, and the grinding container is linked to the second port of the tubular workpiece through the first container joint.
[0006] In some optional embodiments, the second pipe opening of the circulating sleeve extends into the cavity of the grinding container from the liquid outlet and is placed below the liquid level of the grinding liquid.
[0007] In some optional embodiments, the inner diameter surface grinding device further comprises a second container joint embedded in the liquid outlet of the grinding container, and the second pipe opening of the circulating sleeve extends into the cavity of the grinding container through the second container joint.
[0008] In some alternative embodiments, the circulating sleeve is a single-pipe integrated structure or a multi-pipe combined structure.
[0009] In some alternative embodiments, the liquid inlet is located above the liquid level of the polishing liquid and a gap exists between the liquid inlet and the liquid level of the polishing liquid.
[0010] In some alternative embodiments, the pump is a diaphragm pump.
[0011] In some alternative embodiments, the inner diameter surface polishing device further comprises a motor, a connecting rod, and a stirring paddle arranged in the polishing container and located below the liquid level of the polishing liquid; the polishing container is provided with a stirring opening; one end of the connecting rod is assembled on the motor, and the other end of the connecting rod extends into the polishing container and is fixedly connected with the stirring paddle through the stirring opening.
[0012] In some alternative embodiments, the stirring paddle is provided with a brush at the bottom to break the deposition structure of the polishing liquid during rotation of the stirring paddle.
[0013] In some alternative embodiments, the tubular workpiece is a print head, and the minimum inner diameter of the print head is 0.1-1 mm.
[0014] Compared with the prior art, the present application has the following advantages:
[0015] The inner diameter surface polishing device in the embodiments of the present application can realize polishing treatment of the inner diameter surface of the tubular workpiece, thereby improving the roughness of the inner diameter surface of the tubular workpiece, reducing the influence of the print head type tubular workpiece on the printing quality, and also realizing effective cleaning treatment of the deposition / occlusion in the print head. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic view of the inner diameter surface polishing device in the embodiments of the present application;
[0017] Figure 2 is a structural example one of the inner diameter surface polishing device in the embodiments of the present application;
[0018] Figure 3 is an assembly schematic view of the sleeve joint, the tubular workpiece, and the first container joint of the inner diameter surface polishing device in the embodiments of the present application;
[0019] Figure 4 is a structural example two of the inner diameter surface polishing device in the embodiments of the present application. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0021] It should be noted that the technical features in the embodiments of the utility model can be combined with each other without conflict.
[0022] The utility model discloses an inner diameter surface grinding device, specifically, as shown in Figures 1-4 , Figure 1 It is the structure schematic diagram of the inner diameter surface grinding device in the embodiments of the utility model; Figure 2 It is structure example one of the inner diameter surface grinding device in the embodiments of the utility model; Figure 3 It is the assembly schematic diagram of the casing joint, tubular workpiece, first container joint of the inner diameter surface grinding device in the embodiments of the utility model; Figure 4 It is structure example two of the inner diameter surface grinding device in the embodiments of the utility model;The inner diameter surface grinding device is applied to the grinding and polishing of the inner diameter surface of tubular workpiece 14, and specifically includes: grinding container 1, circulating casing 2 and pump 3;Among them, grinding container 1 includes the cavity containing grinding liquid 4, and the liquid inlet 101 and liquid outlet 102 opened on grinding container 1 and communicated with the internal cavity thereof;The tube body combination between tubular workpiece 14 and circulating casing 2, the two ports of the combined tube body formed are connected at the liquid inlet 101 and liquid outlet 102 of grinding container 1 respectively, to form the circulating passage of grinding liquid 4 between grinding container 1, circulating casing 2 and tubular workpiece 14;Pump 3 is arranged on circulating casing 2, and under the action of the pump, grinding liquid 4 is driven to reciprocate in the circulating passage at a set flow rate to flush the inner diameter surface of tubular workpiece 14.
[0023] The "tubular workpiece" in the embodiments of the utility model refers to the tube structure with internal passage;Among them, the internal passage can refer to a single passage (i.e. only two ports are communicated), or refer to a plurality of independent and / or intersecting passage structures, since the working principle of the inner diameter surface grinding device in the embodiments of the utility model is to drive the grinding liquid to continuously flush and polish the inner diameter surface (inner wall) of the tubular workpiece at a set flow rate to improve the surface of the inner wall, therefore, regardless of the structure of the tubular workpiece, the target of the circulating passage can be achieved by setting the corresponding interface structure, in order to facilitate the quick understanding of those skilled in the art, the tubular workpiece with single passage is mainly exemplified and described in the application.
[0024] In use, first, the grinding liquid 4 is poured into the grinding container 1, and then the grinding container 1, the circulating sleeve 2 and the tubular workpiece 14 are combined into a pipe body; for example, the first port of the circulating sleeve 2 is connected with the first end of the tubular workpiece 14, the second end of the tubular workpiece 14 is connected with the liquid inlet 101 of the grinding container 1, and the liquid outlet 102 of the grinding container 1 is connected with the second port of the circulating sleeve 2; at this time, the grinding container 1, the circulating sleeve 2 and the tubular workpiece 14 form a closed circulation channel, and since the tubular workpiece 14 is part of the circulation channel, when the pump is started, the grinding liquid 4 will continuously flush the inner diameter surface of the tubular workpiece 14 at a set flow rate. It should be understood by those skilled in the art that in the above structure, the tubular workpiece 14 can also be assembled between the second port of the circulating sleeve 2 and the liquid outlet 102 of the grinding container 1.
[0025] In some embodiments, the number of tubular workpieces in the embodiment of the utility model can be one or more, that is, the inner diameter surface grinding device in the embodiment of the utility model can perform inner wall flushing and grinding on one tubular workpiece, or can simultaneously perform inner wall flushing and grinding on two or even multiple tubular workpieces, which only needs to be combined into a pipe body according to the above assembly requirements.
[0026] The inner diameter surface grinding device in the embodiment of the application can realize polishing treatment of the inner diameter surface of the tubular workpiece, thereby improving the roughness of the inner diameter surface of the tubular workpiece, reducing the influence of the tubular workpiece such as a print head on the printing quality, and also realizing effective cleaning treatment of the deposition / occlusion in the print head.
[0027] In some embodiments, the inner diameter surface grinding device in the embodiment of the utility model can further include: a sleeve joint 5 embedded in the first port of the circulating sleeve 2 and the tubular workpiece 14 combined into a pipe body, and the first port of the circulating sleeve 2 is connected with the first end of the tubular workpiece 14 through the sleeve joint 5; and a first container joint 6 embedded in the liquid inlet 101 of the grinding container 1, and the grinding container 1 is connected with the second end of the tubular workpiece 14 through the first container joint 6.
[0028] In some embodiments, the second port of the circulating sleeve 2 extends into the cavity of the grinding container 1 from the liquid outlet 102 and is placed below the liquid level of the grinding liquid 4.
[0029] In some embodiments, the inner diameter surface grinding device in the embodiment of the utility model can further include: a second container joint 7 embedded in the liquid outlet 102 of the grinding container 1, and the second port of the circulating sleeve 2 extends into the cavity of the grinding container 1 through the second container joint 7.
[0030] The sleeve joint 5, the first container joint 6 and the second container joint 7 are mainly used for adapting to the different pipe / port sizes of the grinding container 1, the circulating sleeve 2 and the tubular workpiece 14, or the structure of the three is not easy to connect, and if the structure design of the grinding container 1, the circulating sleeve 2 and the tubular workpiece 14 can meet the direct connection, the above-mentioned joint structure can be omitted.
[0031] In some embodiments, the circulating sleeve is a single-pipe integrated structure or a multi-pipe combined structure. The circulating sleeve 2 in the embodiment is not limited to a single pipe, or is composed of a plurality of single pipes; in the multi-pipe combination example, the pipe diameters of the plurality of single pipes can be different, and the plurality of single pipes can be effectively connected through a joint or the like.
[0032] In some embodiments, the liquid inlet 101 is located above the liquid level of the grinding liquid 4 and a gap exists between the liquid inlet 101 and the liquid level of the grinding liquid 4. Specifically, the grinding liquid 4 in the grinding container 1 can not fill the entire internal cavity of the grinding container 1, but only fill part of the internal cavity of the grinding container 1, so that the liquid inlet 101 is located above the liquid level of the grinding liquid 4, and the second port of the tubular workpiece 14 also does not directly contact the grinding liquid 4, so that the grinding liquid 4 ejected from the second port of the tubular workpiece 14 is not affected by the liquid phase resistance, and can more easily reach the set flow rate under the control of the pump 3. In other embodiments, the grinding liquid 4 can also fill the entire grinding container 1, or the liquid inlet 101 and / or the liquid outlet 102 can also be arranged at a position below the liquid level, but it is necessary to assemble and combine first, and then fill the grinding liquid, so as to prevent leakage.
[0033] In some embodiments, the pump 3 in the embodiment of the utility model can select any pump on the market that can drive the grinding liquid to flow; preferably, a diaphragm pump can be used, which has the advantages of small structure, light weight and high reliability.
[0034] The circulating sleeve 2 in the embodiment of the utility model can use a hose and / or a hard pipe, which can be determined according to the structure and function requirements.
[0035] In some embodiments, the inner diameter surface grinding device in the embodiment of the utility model can further include a motor 8, a connecting rod 9, and a stirring paddle 10 arranged in the grinding container 1 and placed below the liquid level of the grinding liquid 4; a stirring port 103 is arranged on the grinding container 1; one end of the connecting rod 9 is assembled on the motor 8, and the other end of the connecting rod 9 is fixedly connected to the stirring paddle 10 in the grinding container 1 through the stirring port 103.
[0036] In some embodiments, a third container joint 11 can be arranged at the stirring port 103, which is used for assembling the connecting rod 9.
[0037] The grinding liquid in the embodiment of the utility model is mostly micro-nano grinding particles and water (or other solvents) suspension, and the stirring paddle in the above embodiment is used for stirring and treating the suspension, stirring and dispersing the grinding particles in the suspension, and avoiding the settlement and deposition at the bottom of the container.
[0038] Preferably, the bottom of the stirring paddle 10 in the embodiment of the utility model is provided with a brush 12 to break the settlement structure of the grinding liquid 4 during the rotation of the stirring paddle 10.
[0039] In the case of long-term non-use of the inner diameter surface grinding device, the grinding liquid in the grinding container will inevitably settle and deposit, thereby forming a thick deposit (settlement structure) at the bottom of the container, and when used again, the single stirring paddle is difficult to break the stable structure of the deposit, therefore, the application adds a brush at the bottom of the stirring paddle, which can directly contact the deposit, quickly break the stable structure of the deposit, and quickly achieve the effect of uniform dispersion.
[0040] Further, the brush 12 includes one or more protruding structures uniformly arranged and extending downward from the bottom of the stirring paddle, and the protruding structure is not limited to a "nail" structure of metal or non-metal.
[0041] The tubular workpiece in the embodiment of the utility model can be a print head, and the minimum inner diameter is 0.1-1 mm, and the print head is an aerosol jet print head with an inner diameter of 0.8 mm.
[0042] In some embodiments, the utility model embodiment further includes a device rack 13, which can be used to carry components such as the motor 8 and the pump 3, and simultaneously perform the surrounding protection function.
[0043] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. An inner diameter face polishing apparatus characterized by comprising: The application relates to a grinding and polishing device for the inner surface of a tubular workpiece, comprising a grinding container, a circulating sleeve and a pump; wherein the grinding container comprises a cavity for containing grinding liquid, and a liquid inlet and a liquid outlet arranged on the grinding container and communicating with the cavity; the tubular workpiece is combined with the circulating sleeve, and the two ports of the combined tube body are connected to the liquid inlet and the liquid outlet of the grinding container respectively to form a circulating path for the grinding liquid among the grinding container, the circulating sleeve and the tubular workpiece; and the pump is arranged on the circulating sleeve and drives the grinding liquid to reciprocally circulate in the circulating path at a set flow rate to flush the inner surface of the tubular workpiece. The application further comprises: a sleeve joint embedded in the first port of the circulating sleeve and the tubular workpiece, and the circulating sleeve is connected to the first port of the tubular workpiece through the sleeve joint; 2. The inside diameter lapping device of claim 1, wherein a first container joint embedded in the liquid inlet of the grinding container, and the grinding container is connected to the second port of the tubular workpiece through the first container joint. The second port of the circulating sleeve extends into the cavity of the grinding container from the liquid outlet and is arranged below the liquid level of the grinding liquid. The application further comprises:
3. The inside diameter lapping device of claim 1, wherein a second container joint embedded in the liquid outlet of the grinding container, and the second port of the circulating sleeve extends into the cavity of the grinding container through the second container joint.
4. The inside diameter lapping device of claim 3, wherein The circulating sleeve is a single-tube integrated structure or a multi-tube combined structure. The liquid inlet is arranged above the liquid level of the grinding liquid and a gap exists between the liquid inlet and the liquid level of the grinding liquid.
5. The inside diameter lapping device of claim 1, wherein The pump is a diaphragm pump.
6. The inside diameter lapping device of claim 1, wherein The application further comprises:
7. The inside diameter lapping device of claim 1, wherein a motor, a connecting rod and a stirring paddle arranged in the grinding container and below the liquid level of the grinding liquid; 8. The inside diameter lapping device of claim 1, wherein a stirring port arranged on the grinding container; one end of the connecting rod is assembled on the motor, and the other end of the connecting rod extends into the grinding container through the stirring port and is fixedly connected to the stirring paddle. The bottom of the stirring paddle is provided with a brush for breaking the deposition structure of the grinding liquid during rotation of the stirring paddle. The tubular workpiece is a printing head with a minimum inner diameter of 0.1-1 mm.
9. The inside diameter lapping device of claim 8, wherein, 10. The inside diameter lapping device of claim 1, wherein,