CN111359851B - Centrifugal tool and dip-coating equipment - Google Patents
Centrifugal tool and dip-coating equipment Download PDFInfo
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- CN111359851B CN111359851B CN201811603147.4A CN201811603147A CN111359851B CN 111359851 B CN111359851 B CN 111359851B CN 201811603147 A CN201811603147 A CN 201811603147A CN 111359851 B CN111359851 B CN 111359851B
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- positioning
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- supporting plate
- centrifugal
- dip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
- B05C3/09—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating separate articles
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Abstract
The application discloses centrifugation frock includes: the rotary sleeve is matched with the rotary driving mechanism and driven by the rotary driving mechanism to rotate; the supporting plate is fixedly connected with the rotating sleeve, and a plurality of workpiece positioning pieces are fixed on the supporting plate; the workpiece positioning piece is used for restraining the movement of the workpiece, so that the workpiece is driven by the supporting plate to rotate together with the supporting plate. The present application also provides a dip coating apparatus. The application provides a centrifugal frock can effectively avoid treating piling up between the processing work piece, increases the contact of dip-coating liquid and work piece, prevents to produce the adhesion between the work piece, optimizes the application effect, makes work piece surface coating thickness even.
Description
Technical Field
The invention relates to the technical field of Dacromet coating processing, in particular to a centrifugal tool and dip-coating equipment.
Background
Dacromet is a DACROMET transliteration and abbreviation, abbreviated as Dacromet, Dicklon. The coating is named as a zinc-chromium coating in China, and is a novel anticorrosive coating taking zinc powder, aluminum powder, chromic acid and deionized water as main components. Compared with traditional metal surface anticorrosion treatment such as electroplating and zinc impregnation, the Dacromet anticorrosion is a novel metal surface anticorrosion technology and a novel process which are environment-friendly and can greatly improve the anticorrosion performance.
The dacromet coating process can be roughly classified into dip coating, spray coating, suspension coating and the like, and the dip coating is mainly used. The dip coating has the characteristics of high production efficiency, simple operation and less coating loss, and is suitable for small hardware parts, steel pipe frames, sheets, equipment with complex structures or electrical insulator materials and the like.
In the existing dip coating process, a manufacturer usually places a workpiece in a centrifugal basket, then immerses the centrifugal basket in a dacromet solution, takes out the centrifugal basket after placing for a period of time, drives the centrifugal basket to rotate by a rotating device, drains the workpiece by centrifugal force generated by rotation, and then bakes the workpiece to form a film.
Traditional centrifugation basket includes at the bottom of the basket and basket wall, and the lower extreme and the bottom of the basket wall are connected, and the upper end of basket wall encloses into basket body opening, is equipped with a plurality of outage on the basket wall. Such a centrifuge basket has the following problems during operation: (1) due to the action of gravity, the overstocked condition of the workpiece at the bottom of the centrifugal basket is serious, so that the workpiece has the conditions of uneven Dacromet coating thickness, incapability of discharging accumulated liquid in holes, even hole plugging and the like; (2) the Dacromet coating liquid has certain viscosity, and under the action of centrifugal force and gravity, piled workpieces are adhered together and cannot be completely separated, and after solidification and sintering, the workpieces are adhered together to form a block, so that the rejection rate is high.
Disclosure of Invention
In order to solve the above technical problems, a first object of the present invention is to provide a centrifugal tool, which restrains workpieces to be processed by a workpiece positioning element, can effectively avoid accumulation of the workpieces to be processed, increase contact between a dip-coating solution and the workpieces, prevent adhesion between the workpieces, optimize a coating effect, and make a coating thickness on a surface of the workpiece uniform. The second purpose of the invention is to provide a dip-coating device, which can effectively avoid the accumulation of workpieces to be processed, increase the contact between dip-coating liquid and the workpieces, prevent the adhesion between the workpieces, optimize the coating effect and ensure that the thickness of the coating on the surface of the workpiece is uniform.
The centrifugal tool comprises a rotary sleeve, wherein the rotary sleeve is matched with a rotary driving mechanism and driven by the rotary driving mechanism to rotate; the supporting plate is fixedly connected with the rotating sleeve, and a plurality of workpiece positioning pieces are fixed on the supporting plate; the workpiece positioning piece is used for restraining the movement of the workpiece, so that the workpiece is driven by the supporting plate to rotate together with the supporting plate.
Preferably, the workpiece positioning element comprises a first positioning structure and a second positioning structure; the first positioning structure and the second positioning structure jointly form a positioning space, the workpiece is a hexagonal nut, and the hexagonal nut is vertically or obliquely placed in the positioning space.
Preferably, the first positioning structure is two first positioning portions, and the distance between the two first positioning portions is equal to the diameter of an inscribed circle of the hexagon nut; the second positioning structure is two second positioning portions, and the distance between the two second positioning portions is equal to the axial length of the hexagonal nut.
Preferably, two adjacent workpiece positioning elements share one first positioning part or one second positioning part.
Preferably, the first positioning part is a hollow column, and a liquid outlet is arranged at the lower end of the hollow column; and/or the second positioning part is a hollow column, and a liquid outlet is arranged at the lower end of the hollow column.
Preferably, the workpiece positioning pieces are annularly arranged and are arranged on the supporting plate at equal intervals.
Preferably, the rotating sleeve is provided with at least one first through hole, and/or the supporting plate is provided with at least one second through hole.
Preferably, the rotating sleeve is a conical cylinder.
Preferably, the top of the rotating sleeve is provided with a hoisting part.
The invention also provides dip-coating equipment which comprises a material cylinder for containing dip-coating liquid, a rotary driving mechanism for centrifugation and any one of the centrifugal tools.
According to the centrifugal tool, the rotary sleeve matched with the rotary driving mechanism is arranged, and the supporting plate fixed with the plurality of station positioning pieces is fixedly connected with the rotary sleeve, so that the rotary sleeve can drive the supporting plate to rotate under the driving of the rotary driving mechanism, the workpiece is driven to rotate through the combined action of the supporting plate and the workpiece positioning pieces, and redundant liquid on the surface of the workpiece is thrown out through centrifugal force. In the rotating process, under the constraint of the workpiece positioning piece, the workpiece to be processed does not move close to or far away from the rotating center; moreover, due to the limiting effect of the workpiece positioning piece, the workpieces to be processed cannot collide violently with each other and cannot be stacked mutually. Therefore, the single workpiece is more fully contacted with the dip coating liquid, and in the centrifugal process, the excess dip coating liquid on the surface of the workpiece is easier to discharge due to no blockage of other workpieces. The centrifugal tool and the dip-coating equipment provided by the invention can effectively avoid the accumulation of workpieces to be processed, increase the contact between dip-coating liquid and the workpieces, prevent the workpieces from being adhered, optimize the coating effect and ensure that the thickness of the coating on the surface of the workpiece is uniform.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a centrifugal tool according to the present invention;
FIG. 2 is a front view of the centrifugal tooling of the present invention;
fig. 3 is a top view of the centrifugal tool of the present invention.
In the figure, 1-a rotating sleeve, 11-a first through hole, 2-a supporting plate, 21-a second through hole, 3-a workpiece positioning piece, 31-a first positioning structure, 32-a second positioning structure, 311-a first positioning part, 321-a second positioning part and 4-a hoisting part 4.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Embodiments of the present invention are written in a progressive manner.
As shown in fig. 1 to fig. 3, an embodiment of the present invention provides a centrifugal tool, including a rotating sleeve 1, where the rotating sleeve 1 is used for being matched with a rotating driving mechanism and being driven by the rotating driving mechanism to rotate; the supporting plate 2 is fixedly connected with the rotating sleeve 1, and a plurality of workpiece positioning pieces 3 are fixed on the supporting plate 2; the workpiece positioning part 3 is used for restricting the movement of the workpiece, so that the workpiece is driven by the supporting plate 2 to rotate together with the supporting plate 2.
According to the centrifugal tool, the rotary sleeve 1 matched with the rotary driving mechanism is arranged, and the supporting plate 2 fixed with the plurality of station positioning pieces is fixedly connected with the rotary sleeve 1, so that the rotary sleeve 1 can drive the supporting plate 2 to rotate under the driving of the rotary driving mechanism, the workpiece is driven to rotate through the combined action of the supporting plate 2 and the workpiece positioning piece 3, and redundant liquid on the surface of the workpiece is thrown out through centrifugal force. In the rotating process, under the constraint of the workpiece positioning piece 3, the workpiece to be processed does not move close to or far away from the rotating center; moreover, due to the limiting effect of the workpiece positioning parts 3, the workpieces to be processed do not collide violently with each other and are not stacked. Therefore, the single workpiece is more fully contacted with the dip coating liquid, and in the centrifugal process, the excess dip coating liquid on the surface of the workpiece is easier to discharge due to no blockage of other workpieces. The centrifugal tool and the dip-coating equipment provided by the invention can effectively avoid the accumulation of workpieces to be processed, increase the contact between dip-coating liquid and the workpieces, prevent the workpieces from being adhered, optimize the coating effect and ensure that the thickness of the coating on the surface of the workpiece is uniform.
The centrifugal tool is suitable for dip-coating treatment of various mechanical parts, such as hexagon nuts, screws, short column pieces, thread sleeves and the like. And correspondingly arranging the workpiece positioning parts 3 with different structures according to workpieces to be processed with different types and specifications.
When treating that the processing work piece is hexagon nut, as one kind of this embodiment, work piece setting element 3 can be single reference column, passes hexagon nut and places the location that can realize hexagon nut with the reference column, makes it rotate along with backup pad 2 together under the restraint of reference column. In order to increase the contact area of the hexagonal nut with the dip coating liquid during the machining, a protrusion may be provided at a position where the support plate 2 contacts the hexagonal nut, that is, the contact between the hexagonal nut and the support plate 2 is changed to a line contact or a point contact. In a similar way, when the same positioning column is sleeved with a plurality of hexagon nuts, a blocking piece can be arranged between the adjacent nuts, the contact between the hexagon nuts is changed into line contact or point contact, the mutual interference between the adjacent nuts is avoided, and the adverse effect is generated on the coating effect.
As another embodiment of the present invention, the workpiece positioning element 3 may also include a first positioning structure 31 and a second positioning structure 32, and the first positioning structure 31 and the second positioning structure 32 together form a positioning space, and the hexagonal nut is placed in the positioning space to achieve the constraint effect on the nut. Because when two hexagon nuts are stacked in a mode that the central axes are overlapped, the contact area between the two hexagon nuts is the largest, the preferred hexagon nut is vertically or obliquely placed in a positioning space formed by the first positioning structure 31 and the second positioning structure 32, the contact area of the adjacent hexagon nuts is reduced, and the dipping of the dipping liquid is facilitated. The hexagonal nut is placed vertically, which means that the central axis of the hexagonal nut is perpendicular to the rotation central axis of the rotating sleeve 1.
Furthermore, the nuts are orderly arranged together in a line contact manner. As an embodiment of the present invention, the first positioning structure 31 may include two first positioning portions 311, and a distance between the two first positioning portions 311 is equal to an inscribed circle diameter of the hexagon nut; the second positioning structure 32 is two second positioning portions 321, and a distance between the two second positioning portions 321 is equal to an axial length of the hexagon nut. In this way, the adjacent hexagon nuts are connected in an angle and diagonal manner between the two first positioning portions 311, and the two hexagon nuts are in line contact, so that the contact area is small; meanwhile, the two second positioning portions 321 allow the hexagon nut to be vertically placed without shaking in the moving or rotating process. So, can enough place a plurality of hexagon nuts in a work piece setting element 3, again can furthest avoid the mutual contact between the nut, make nut surface coating more even. The first positioning portion 311 and the second positioning portion 321 may be vertically disposed on the support plate 2, or may be inclined in the same direction.
In order to further save space, so that more workpiece positioning elements 3 can be arranged on the supporting plate 2, and more hexagon nuts can be dip-coated in a certain time, as an embodiment of the present invention, two adjacent workpiece positioning elements 3 share one first positioning portion 311, or share one second positioning portion 321. Therefore, the installation density of the workpiece positioning piece 3 can be greatly improved, and the processing efficiency is improved.
In the embodiment of the present invention, the first positioning portion 311 and the second positioning portion 321 may be positioning plates, positioning columns, or other irregular structures with irregular shapes but capable of playing a role of blocking. When the first positioning portion 311 and the second positioning portion 321 are positioning posts, since the positioning posts are in line contact with the nuts, each hexagonal nut can be in full contact with the dip-coating liquid in the dip-coating process, and meanwhile, in the centrifugal process, the excess dip-coating liquid on the surface of the nut is discharged more easily. Of course, the positioning column may be a circular column, a square column, a solid column, a hollow column, or the like.
In order to satisfy the lightweight design of the centrifugal tool, the first positioning portion 311 and the second positioning portion 321 are preferably in a hollow column structure, and a liquid outlet is formed at the lower end of the hollow column. The liquid discharge port is arranged to prevent the dip-coating liquid filled in the hollow column from being discharged after the centrifugal tool is immersed in the dip-coating liquid.
In order to further exhaust the liquid in the hollow column, it is preferable that the connection between the hollow column and the support plate 2 is a through structure, so that when the centrifugal tool leaves the liquid surface, the liquid filled in the hollow column is automatically exhausted from the bottom end of the hollow column through the support plate 2 under the action of the gravity of the liquid and is less in residue.
Because the redundant liquid on the surface of the workpiece is thrown away from the surface of the workpiece through centrifugal force, the parts of the centrifugal tool can rotate at high speed more stably in the centrifugal process. Preferably, the workpiece positioning elements 3 are annularly arranged and arranged on the support plate 2 at equal intervals; the gravity center of the centrifugal tool is located at the center of the rotating sleeve 1, and the mass distribution of the rotating sleeve 1 in the whole circumferential direction is kept uniform.
In practical application, the shape of the rotating sleeve 1 can be varied, as long as it can be matched with the rotating driving mechanism and can rotate under the driving of the rotating driving mechanism. For example, the rotating sleeve 1 in the embodiment of the present invention may be a straight cylinder type, a trumpet shape, a regular polygonal column, or the like. However, preferably, the rotating sleeve 1 in the present invention may be a conical cylinder, when the rotating sleeve 1 is a conical cylinder, the rotating sleeve 1 contacts with the rotating head of the rotation driving mechanism through an inclined plane, so that under the action of gravity, a first component force vertically downward and a second component force horizontally pointing to the rotation center are generated between the side wall of the rotating sleeve 1 and the rotating head, and the two component forces can ensure that the rotating sleeve 1 and the rotating head are tightly fitted during the centrifugation process, so that the centrifugation tool can rotate at a high speed more stably.
In addition, because the centrifugal tool is gradually immersed below the surface of the dip-coating liquid from a high position, the centrifugal tool is inevitably subjected to resistance from the liquid in the process of immersing the centrifugal tool into the liquid, and certain resistance is generated to the immersion of the centrifugal tool into the dip-coating liquid due to the pressure generated by the air remained in the rotary sleeve 1.
In order to reduce the resistance to the immersion of the centrifugal tool, it is preferable to provide at least one first through hole 11 in the rotating sleeve 1 and/or at least one second through hole 21 in the support plate 2. Of course, the design of the first through hole 11 and the second through hole 21 not only enables the tool to enter the liquid more smoothly, but also plays a role in reducing weight, meets the requirement of lightweight centrifugal tool, and saves raw materials.
When only one first through hole 11 is provided in the rotating sleeve 1, the first through hole 11 is preferably provided at the top of the rotating sleeve 1.
Further, in order to make the mass distribution of the whole tool uniform in the circumferential direction of the rotation, it is preferable that a plurality of first through holes 11 are provided and the first through holes 11 are uniformly distributed on the rotating sleeve 1, and/or a plurality of second through holes 21 are provided and the second through holes 21 are uniformly distributed on the supporting plate 2.
Because in the course of working, hold the rotatory sleeve 1 of work piece and need be held and shift by elevating system with adding, for the transfer of convenient rotatory sleeve 1, can set up on the rotatory sleeve 1 be used for with elevating system complex hoist and mount portion 4, for making rotatory sleeve 1 more stable at the transfer in-process, as the preferred, can set up hoist and mount portion 4 at the top of rotatory sleeve 1.
The invention also provides dip-coating equipment which comprises a material cylinder for containing dip-coating liquid, a rotary driving mechanism for centrifugation and any one of the centrifugal tools.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a centrifugation frock, its characterized in that includes:
the rotary sleeve is matched with the rotary driving mechanism and driven by the rotary driving mechanism to rotate;
the supporting plate is fixedly connected with the rotating sleeve, and a plurality of workpiece positioning pieces are fixed on the supporting plate;
the workpiece positioning piece is used for restricting the movement of the workpiece so that the workpiece is driven by the supporting plate to rotate along with the supporting plate,
the workpiece positioning piece comprises a first positioning structure and a second positioning structure;
the first positioning structure and the second positioning structure form a positioning space together, the workpiece is a hexagonal nut, and the hexagonal nut is vertically or obliquely placed in the positioning space;
the first positioning structure comprises two first positioning parts, and the distance between the two first positioning parts is equal to the diameter of an inscribed circle of the hexagonal nut;
the second positioning structure is two second positioning portions, and the distance between the two second positioning portions is equal to the axial length of the hexagonal nut.
2. The centrifugal tool according to claim 1, wherein two adjacent workpiece positioning pieces share one first positioning part or one second positioning part.
3. The centrifugal tool according to claim 1, wherein the first positioning part is a hollow column, and a liquid outlet is formed in the lower end of the hollow column; and/or the second positioning part is a hollow column, and a liquid outlet is arranged at the lower end of the hollow column.
4. The centrifugal tool according to any one of claims 1 to 3, wherein the workpiece positioning pieces are annularly arranged and are arranged on the supporting plate at equal intervals.
5. The centrifugal tooling of claim 1, wherein the rotating sleeve is provided with at least one first through hole and/or the support plate is provided with at least one second through hole.
6. The centrifugal tooling of claim 1, wherein the rotating sleeve is a conical cylinder.
7. The centrifugal tool according to claim 1, wherein a lifting portion is arranged at the top of the rotating sleeve.
8. A dip coating apparatus comprising a tank for holding a dip coating liquid, and a rotary drive mechanism for centrifugation, characterized by further comprising a centrifugation tool according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603147.4A CN111359851B (en) | 2018-12-26 | 2018-12-26 | Centrifugal tool and dip-coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603147.4A CN111359851B (en) | 2018-12-26 | 2018-12-26 | Centrifugal tool and dip-coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111359851A CN111359851A (en) | 2020-07-03 |
| CN111359851B true CN111359851B (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811603147.4A Active CN111359851B (en) | 2018-12-26 | 2018-12-26 | Centrifugal tool and dip-coating equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472087A (en) * | 2021-12-24 | 2022-05-13 | 河南航天精工制造有限公司 | Nut internal thread coating clout cleaning device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202742083U (en) * | 2012-05-28 | 2013-02-20 | 河南航天精工制造有限公司 | Clamping tool used during milling hexagon nut |
| KR101346379B1 (en) * | 2012-12-28 | 2014-01-03 | 주식회사 영산테크노 | Coating device |
| CN207056925U (en) * | 2017-06-02 | 2018-03-02 | 中山凯旋真空技术工程有限公司 | Motor-stator dipped lacquer spin-drying device |
| CN207103068U (en) * | 2017-06-20 | 2018-03-16 | 柴德维 | Rubber coating fixture for rubber component |
| CN107899860A (en) * | 2017-11-27 | 2018-04-13 | 重庆市志乾铸造厂 | One kind is used for casting oiling station |
-
2018
- 2018-12-26 CN CN201811603147.4A patent/CN111359851B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202742083U (en) * | 2012-05-28 | 2013-02-20 | 河南航天精工制造有限公司 | Clamping tool used during milling hexagon nut |
| KR101346379B1 (en) * | 2012-12-28 | 2014-01-03 | 주식회사 영산테크노 | Coating device |
| CN207056925U (en) * | 2017-06-02 | 2018-03-02 | 中山凯旋真空技术工程有限公司 | Motor-stator dipped lacquer spin-drying device |
| CN207103068U (en) * | 2017-06-20 | 2018-03-16 | 柴德维 | Rubber coating fixture for rubber component |
| CN107899860A (en) * | 2017-11-27 | 2018-04-13 | 重庆市志乾铸造厂 | One kind is used for casting oiling station |
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| Publication number | Publication date |
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| CN111359851A (en) | 2020-07-03 |
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