CN114193239B - Mold core processing technology - Google Patents
Mold core processing technology Download PDFInfo
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- CN114193239B CN114193239B CN202111535546.3A CN202111535546A CN114193239B CN 114193239 B CN114193239 B CN 114193239B CN 202111535546 A CN202111535546 A CN 202111535546A CN 114193239 B CN114193239 B CN 114193239B
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- mold core
- sand
- shading
- grinding
- light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a mold core processing technology, which comprises the following steps: removing traces, namely removing machining traces on the surface of the mold core; a step of priming texture, in which the surface of the mold core is primed with first frosted sand; polishing the shading by using second frosts, wherein the granularity of the second frosts is larger than that of the first frosts; a light-saving step of using a third frosted sand to save light, wherein the granularity of the third frosted sand is larger than that of the second frosted sand; and a fine polishing step, namely using a fourth grinding sand core, wherein the granularity of the fourth grinding sand is larger than that of the third grinding sand. Through removing the machining trace, making the shading, polishing the shading, saving light and the like to the mold core, the surface of the mold core is provided with the microcosmic shading, the microcosmic roughness of the surface of the mold core is improved, and the mold core and the vein pot are prevented from being bonded when being demoulded. The mold core has smooth smoothness and smoothness in vision on the basis of the shading, and can also be transparent in vision.
Description
Technical Field
The invention relates to the field of processing technologies of die parts, in particular to a die core processing technology.
Background
Many modern diseases can cause abnormal blood components, such as renal dysfunction, hypertension, medicine and food poisoning and the like, and in the symptoms, the blood components can be regulated and improved through hemodialysis to relieve adverse symptoms. In a hemodialysis device, a venous pot is an important medical part, and the main production mode of the venous pot is mold injection molding. In the production process, liquid thermoplastic is injected into an intravenous pot injection mold, and the intravenous pot is obtained after cooling and solidification. The venous pot is usually made of PVC (Polyvinyl chloride), is relatively sensitive to temperature, is easy to change color, has certain viscosity, and has smooth inner surface and transparency requirement. The molded vein pot is sleeved on the mold core. The mold core is processed by the existing mold core processing technology and is very easy to be bonded with the vein pot, so that the vein pot is difficult to be demolded from the mold core.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a mold core processing technology to solve the technical problem that a mold core processed by the mold core processing technology in the prior art is easy to fit with a vein pot.
One of the purposes of the invention is realized by adopting the following technical scheme:
a mold core processing technology comprises the following steps:
removing traces, namely removing machining traces on the surface of the mold core;
a step of priming texture, in which priming texture is formed on the surface of a mold core by using first frosted sand, the first frosted sand is used for priming texture along a first direction, and the first direction is intersected with the axial direction of the mold core;
a grinding step, grinding the shading by using second grinding sand, wherein the granularity of the second grinding sand is larger than that of the first grinding sand, the second grinding sand grinds the shading along a second direction, and the second direction is intersected with the first direction;
a light-saving step of using a third frosted light-saving, wherein the granularity of the third frosted light-saving is larger than that of the second frosted light-saving;
and a finishing step of finishing the core using fourth grit having a grit size greater than that of the third grit.
Further, the first direction is perpendicular to the axial direction of the mold core, and the granularity of the first frosted sand is 800 meshes.
Further, the angle formed by the second direction and the first direction is 10 degrees to 80 degrees.
Further, the second frosting has a particle size of 1200 meshes, the third frosting has a particle size of 1500 meshes, and the fourth frosting has a particle size of 3000-5000 meshes.
Further, the fourth frosting is diamond gypsum.
Further, sanding the third sand prior to using the third sand to reduce glare on the mold core.
Further, the sanding process is to use third frosting and third frosting for opposite grinding.
Further, the third frosts are light-saving along the demolding direction of the product.
Compared with the prior art, the invention has the beneficial effects that:
in the mold core processing technology, the mold core is subjected to the steps of removing machining traces, printing shading, polishing shading, saving light and the like, so that the surface of the mold core has shading which is difficult to observe visually, the micro roughness of the surface of the mold core is improved, and the mold core and the vein pot are prevented from being bonded during demolding. Simultaneously, the mold core still has visual smooth planarization on having the basis of shading to make the vein kettle internal surface that the shaping was come out also have brighter, even if the unevenness of internal surface, also can present for transparent in the vision.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
The embodiment of the invention provides a process for machining a mold core, and particularly relates to surface treatment of the outer surface of the mold core. The mold core processing technology comprises the following steps:
step 1: and removing the traces and removing the machining traces on the surface of the mold core.
Step 2: and (5) forming shading, namely forming shading on the surface of the mold core by using first frosting.
And step 3: and (5) polishing the shading by using a second polishing sand, wherein the granularity of the second polishing sand is larger than that of the first polishing sand.
And 4, step 4: and light is saved by using a third frosted sand, and the granularity of the third frosted sand is larger than that of the second frosted sand.
And 5: and (4) saving light, and using a fourth grinding mold core, wherein the granularity of the fourth grinding mold core is larger than that of the third grinding mold core.
The mold core is formed by casting and then is machined in a machining mode, so that machining marks exist on the mold core, and in the embodiment, the machining marks are machined through the grinding machine in the step 1, so that the machining marks are eliminated, and the vein pot is prevented from being scratched by the protruded machining marks during demolding. The shading is polished on the mold core through step 2, so that the surface of the mold core has grains which can not be seen by naked eyes, the surface of the mold core is uneven, the surface micro roughness of the mold core is improved, the adhesion of the mold core and the vein pot is avoided when the mold is removed, and the mold removal difficulty is reduced. In the step 3, the shading which is just polished is relatively sharp in shape, after the vein pot is formed, the surface of the vein pot and the sharp shading are nested with each other, so that the demoulding difficulty is increased, even demoulding scratches are generated, the shading is polished, the surface shape of the shading can be adjusted, the outline of the shading is smooth, and the demoulding difficulty is reduced. After the step 3, the shading is smoother, but the surface of the shading is still rough, so that in the step 4, the third frosted sand is used for saving light on the mold core, the surface smoothness of the shading is improved, the demolding friction resistance is reduced, and the demolding smoothness is improved. In the step 5, the mold core is subjected to precise light saving, so that the surface of the mold core is brighter, the inner surface of the molded vein pot is in a mirror surface state, the vein pot has good light transmission, and the vein pot is more transparent visually due to the improvement of the brightness; and the surface brightness of the mold core can also reduce the friction between the mold core and the vein pot, and reduce the demolding difficulty.
In the embodiment, in the whole process, the surface treatment process of the mold core is adopted, and meanwhile, the process can also be considered as the shading treatment process, and microscopic shading is processed on the surface of the mold core, so that the surface of the mold core is microscopically uneven; on a macroscopic scale, the surface is in a mirror surface shape, the brightness is good, and the whole body is transparent; in the aspect of demoulding, the vein pot is prevented from being adhered to the mould core, and the demoulding smoothness is good.
In this embodiment, through to the mold core remove the machine tooling vestige, beat the shading, polish shading, economize light and the meticulous steps of economizing on light for the mold core surface has the shading that is difficult to observe in the vision, improves the microcosmic roughness on mold core surface, avoids mold core and vein kettle to adhere when the drawing of patterns. Simultaneously, the mold core still has visual smooth planarization on having the basis of shading to make the vein kettle internal surface that the shaping was come out also have brighter, even if the unevenness of internal surface, also can present for transparent in the vision.
The first, second, third and fourth frosts in this document may be solid media with abrasive particles, such as oilstone, sandpaper, leather, abrasive belt, abrasive cloth, and grinding wheel, or may be fluid media containing abrasive particles. The first, second, third and fourth frosts may be any one of a solid medium and a fluid medium, such as the first, second, third and fourth frosts are sand paper, and if the first frosting is a grinding wheel, the second frosting is sand paper, the third frosting is an abrasive belt, and the fourth frosting is diamond abrasive paste.
In the step of priming the ground pattern in the step 2, the first frosting is used for priming the ground pattern along the first direction, the first direction is intersected with the axis direction of the mold core, namely the extending direction of the ground pattern is intersected with the demolding direction, when demolding is carried out, the moving direction of the vein kettle is intersected with the extending direction of the ground pattern, the ground pattern is interfered with the inner surface of the vein kettle, the adhesion of the ground pattern and the inner surface of the vein kettle is avoided, and the demolding difficulty is reduced.
The angle formed by the first direction and the axis of the mold core is more than 0 degree and less than or equal to 90 degrees, and the first direction is preferably perpendicular to the axis of the mold core.
And 3, the first sanding machine polishes the shading along the first direction, and when the shading is polished, the second sanding machine polishes the shading along the second direction, wherein the second direction is intersected with the first direction. The second sanding direction intersects the first direction, and thus the second sanding is capable of sanding the shading, especially the upper portion of the shading. With the shading cross section form, before not polishing, the upper portion of shading cross section is sharp-pointed, and the shape is different moreover, uses the second dull polish shading of polishing, can grind the upper portion edge of shading cross section, can polish to the shading lower part, and shading cross section form is the corrugate or approximate corrugate after polishing, and the shading is more mellow and smooth, reduces the degree of difficulty that the vein kettle breaks away from on the shading and reduces the removal degree of difficulty of vein kettle.
The angle of the second direction to the first direction is in the range of 10 degrees to 80 degrees, preferably 45 degrees.
In step 4, the third frosted light-saving core is sanded before being used. The sand paper is provided with fine uneven coarse sand which affects the light-saving effect and even possibly generates light-saving traces, so that the 1500-mesh sand paper is sanded in the implementation reward, the coarse sand is removed, and the light-saving effect is improved.
For the sanding process, specifically, the third sanding is used for opposite grinding with the third sanding, and the third sanding is performed with low force for a few times. Specifically, the abrasive grain surfaces of the two third frosts are flatly attached to each other, and the two third frosts are pushed to move relatively for 2 to 5 times.
In addition, the third frosting is light-saving along the demoulding direction of the product, so that the smoothness of demoulding can be improved.
Finally, fine light saving is performed once by using fourth frosting, and the granularity of the fine light saving needs to be reduced, and the fourth frosting is performed by light grinding.
As for the grain size of the aforementioned first to fourth frosts, specifically, the grain size of the first frosts is 600 to 1000 meshes. Specifically 600 meshes, 800 meshes and 1000 meshes.
As for the aforementioned first to fourth frosts, specifically, the second frosts have a grain size of 1000 to 1500 mesh. Specifically 1000 meshes, 1200 meshes and 1500 meshes.
As for the aforementioned first to fourth frosts, specifically, the third frosts have a grain size of 1200 to 2000 mesh. Specifically 1200 mesh, 1500 mesh and 2000 mesh.
As for the grain size of the aforementioned first to fourth frosts, specifically, the grain size of the fourth frosts is 3000 to 8000 mesh. Specifically 3000 mesh, 5000 mesh and 8000 mesh.
Of course, the above-mentioned frosts satisfy: the second grit is larger than the first grit, the third grit is larger than the second grit, and the fourth grit is larger than the third grit.
For the first frosting, the shading formed by the 600-mesh frosting is too coarse and is too obvious after polishing; the ground pattern of 1000 meshes is too fine, and the pattern does not meet the requirement of demoulding, preferably 800 meshes. 1200 mesh is preferred for the second grit, 1500 mesh is preferred for the third grit, and 5000 mesh is preferred for the fourth grit, which may be specifically 5000 mesh diamond plaster.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the scope of the present invention.
Claims (8)
1. A mold core processing technology comprises the following steps:
removing traces, namely removing machining traces on the surface of the mold core;
a step of priming texture, wherein priming texture is formed on the surface of a mold core by using first frosts, the first frosts are used for priming texture along a first direction, and the first direction is intersected with the axial direction of the mold core;
a grinding step, grinding the shading by using second grinding sand, wherein the granularity of the second grinding sand is larger than that of the first grinding sand, the second grinding sand grinds the shading along a second direction, and the second direction is intersected with the first direction;
a light-saving step of using a third frosted light-saving, wherein the granularity of the third frosted light-saving is larger than that of the second frosted light-saving;
and a fine polishing step of finely polishing the mold core using fourth sand having a grain size larger than that of the third sand.
2. The mold core processing technology of claim 1, wherein: the first direction is perpendicular to the axis direction of the mold core, and the granularity of the first frosted sand is 800 meshes.
3. The core tooling process of claim 1 wherein the second direction makes an angle of 10 to 80 degrees with the first direction.
4. The core-making process of claim 1, wherein the second grit is 1200 mesh, the third grit is 1500 mesh and the fourth grit is 3000 to 5000 mesh.
5. The mold core processing process of claim 4, wherein: the fourth frosted sand is diamond gypsum.
6. The mold core processing process of claim 1, wherein: sanding the third sand prior to using the third sand to reduce glare on the mold core.
7. The mold core processing technology of claim 6, wherein: and the sanding process is to use third frosting sand and third frosting sand for opposite grinding.
8. The mold core processing process of claim 1, wherein: the third frosting is light-saving along the demoulding direction of the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535546.3A CN114193239B (en) | 2021-12-15 | 2021-12-15 | Mold core processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111535546.3A CN114193239B (en) | 2021-12-15 | 2021-12-15 | Mold core processing technology |
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| Publication Number | Publication Date |
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| CN114193239A CN114193239A (en) | 2022-03-18 |
| CN114193239B true CN114193239B (en) | 2023-04-18 |
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| CN115139191B (en) * | 2022-09-05 | 2022-11-22 | 歌尔光学科技有限公司 | Polishing method of optical lens mould core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002225088A (en) * | 2001-01-30 | 2002-08-14 | Polyplastics Co | Mirror surface finished mold to which surface treatment is applied and molding method |
| JP2003026427A (en) * | 2001-07-12 | 2003-01-29 | Matsushita Electric Ind Co Ltd | Metallic mold for molding substrate and method for manufacturing the same |
| JP2008168475A (en) * | 2007-01-10 | 2008-07-24 | Yamaha Corp | Minute molding mold |
| JP2008307735A (en) * | 2007-06-13 | 2008-12-25 | Towa Corp | Mold for resin molding |
| JP5561978B2 (en) * | 2009-09-18 | 2014-07-30 | 日本航空電子工業株式会社 | Mold for molding and processing method of mold surface |
| JP5606824B2 (en) * | 2010-08-18 | 2014-10-15 | 株式会社不二製作所 | Mold surface treatment method and mold surface-treated by the above method |
| CN104227511A (en) * | 2013-06-21 | 2014-12-24 | 镇江德隆机电设备有限公司 | Tool polishing method |
| CN104369066B (en) * | 2014-09-16 | 2018-11-06 | 天津凡进模具有限公司 | The wire-drawing processing method of the asymmetric cylindrical shape curved surface core surface of injection mold |
| CN104526469B (en) * | 2014-11-28 | 2016-09-07 | 中船重工西安东仪科工集团有限公司 | A kind of finishing method of plastic spraying layer |
| CN106944899A (en) * | 2016-12-20 | 2017-07-14 | 柳州通为机械有限公司 | A kind of automobile die abrasive polishing method |
| JP7220483B2 (en) * | 2018-08-31 | 2023-02-10 | 株式会社不二機販 | Metal product surface member and its burnishing method |
| CN113305651A (en) * | 2021-06-30 | 2021-08-27 | 浙江昊杨新能源科技有限公司 | Surface polishing process for battery plastic shell injection mold |
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