CN112208256B

CN112208256B - Preparation equipment of color graphite handicraft prevents fading

Info

Publication number: CN112208256B
Application number: CN202011061350.0A
Authority: CN
Inventors: 郭泰山; 马伟; 田斌
Original assignee: Sinosteel New Materials Co Ltd
Current assignee: Symantec Advanced Materials Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-12-21
Anticipated expiration: 2040-09-30
Also published as: CN112208256A

Abstract

The invention relates to the technical field of color graphite processing, in particular to a preparation device of an anti-fading color graphite handicraft, which comprises a first feeding bin, a second feeding bin, a rotary table, a forming device and a pressing device, wherein the forming device comprises a cylindrical pressing space and a plurality of groups of material smearing mechanisms which are uniformly distributed around the pressing space, a column material is formed by pressing through the pressing space, fluoride salt particles are smeared on the outer circumferential side wall of the column material through the smearing mechanisms after the column material is formed by pressing, the fluoride salt particles are pressed into the outer circumferential side wall of the column material, and the fluoride salt is heated and decomposed in the graphitization process of the column material, so that pits which are uniformly distributed are formed on the surface layer of graphite, the roughness of the surface of the graphite product is increased, the adhesive force of a dyeing coating is improved, and the technical problem that the dyeing color of the graphite product is easy to separate and fade is solved.

Description

Preparation equipment of color graphite handicraft prevents fading

Technical Field

The invention relates to the technical field of color graphite processing, in particular to a preparation device of an anti-fading color graphite handicraft.

Background

Graphite is an allotrope of carbon, a gray black, opaque solid with a density of 2.25 grams per cubic centimeter, a melting point of 3652 ℃ and a boiling point of 4827 ℃. Stable chemical property, corrosion resistance and difficult reaction with acid, alkali and other medicaments. At 687 deg.C, carbon dioxide is generated by combustion in oxygen. Can be oxidized by strong oxidant such as concentrated nitric acid, potassium permanganate, etc. It can be used as antiwear agent and lubricant, high-purity graphite as neutron moderator in atomic reactor, crucible, electrode, brush, dry cell, graphite fibre, heat exchanger, cooler, arc furnace, arc lamp and pencil lead.

Because of the gray-black color characteristic of graphite, when graphite is used for manufacturing handicrafts or artworks, the graphite needs to be subjected to color processing to form a graphite product with gorgeous surface color for processing the handicrafts and the artworks, and after the graphite product is dyed, the dyed coating is easy to fall off and fade due to the powdering of the graphite surface layer, so that in order to improve the adhesive force of the dyed coating on the surface of the graphite product, the surface of the graphite product needs to be subjected to rough treatment to form convex points or concave pits, so that the adhesive force of the dyed coating is improved, and a technical scheme capable of generating uniformly distributed concave pits on the surface of the graphite product is urgently needed.

In chinese patent with patent application No. CN201910730259.4, a method for cultivating color diamond at high temperature and high pressure is disclosed, in which high-purity boron powder and high-purity graphite are mixed according to a certain proportion, and vacuum reduction sintering is adopted, so that uniform distribution of boron element in a carbon source is effectively ensured, and the content of harmful impurities in the carbon source is reduced. Thereby greatly improving the color uniformity and the internal purity of the product of the blue cultured diamond. The technological process of secondary synthesis and irradiation treatment to introduce vacancy defect is adopted, and according to the difference of color centers of green, red, orange, pink and purple diamonds, three key parameters of synthesis pressure, synthesis temperature and synthesis time are controlled during secondary synthesis, so that colored diamonds with different colors can be obtained.

Although the technical solution disclosed in the above patent solves the solution of preparing colored diamond using high purity boron powder and high purity graphite, the solution is not suitable for dyeing of graphite products.

Disclosure of Invention

Aiming at the problems, the invention provides equipment for preparing a fading-proof color graphite handicraft, which is characterized in that a column material is pressed and formed by utilizing a material pressing space, fluoride salt particles are coated on the outer circumferential side wall of the column material by a material coating mechanism after the column material is pressed and formed, the fluoride salt particles are pressed into the outer circumferential side wall of the column material, and in the process of graphitizing the column material, the fluoride salt is heated and decomposed to form uniformly distributed pits on the surface layer of graphite, so that the roughness of the surface of a graphite product is increased, the adhesive force of a dyeing coating is improved, and the technical problem that the dyeing color of the graphite product is easy to separate and fade is solved.

In order to achieve the purpose, the invention provides the following technical scheme:

the preparation equipment of the fade-proof color graphite handicraft comprises a first feeding bin and a second feeding bin which are arranged side by side, wherein the first feeding bin is arranged in a cylindrical shape and is internally stored with a graphite raw material mixture after stirring and kneading, and the second feeding bin is arranged in an annular cylindrical shape and is internally stored with granular fluoride salt;

the rotary table is horizontally and rotatably arranged right below the first feeding bin and the second feeding bin, and the first feeding bin is positioned in front of the second feeding bin along the rotating direction of the rotary table;

the forming device is provided with four groups of forming devices at equal intervals along the circumferential direction of the rotating disc, the forming devices synchronously rotate along with the rotating disc, a cylindrical material pressing space and a plurality of groups of material smearing mechanisms uniformly distributed around the material pressing space are arranged on the forming device, and the material smearing mechanisms smear fluoride salt particles on the outer circumferential side wall of the column material which is pressed and formed in the material pressing space; and

and the pressing device is arranged at the second feeding bin and is used for pressing the graphite raw material mixture in the material pressing space of the forming device below the second feeding bin.

As the improvement, in the circumference of carousel, along its direction of rotation equidistance in proper order has set up first reinforced station, the reinforced station of second, unblock station and ejection of compact station, first reinforced station is located under the first storehouse of adding, the reinforced station of second is located under the second adds the storehouse, the unblock station is just right first reinforced station set up in the opposite side of carousel, ejection of compact station is just right the reinforced station of second set up in the opposite side of carousel.

As an improvement, forming device includes urceolus, inner tube and bottom plate, the urceolus rotate install in on the carousel, the equidistance is installed on its inner circumference lateral wall the mechanism of smearing material, the inner tube coaxial sleeve is located in the urceolus, its oscilaltion sets up, the bottom plate set up in the bottom of urceolus, its with the inner tube combination forms press the material space.

As an improvement, the bottom of the outer cylinder is provided with an internal thread, the outer circumferential side wall of the inner cylinder is provided with an external thread correspondingly matched with the internal thread, the outer cylinder is provided with a rotating mechanism for driving the outer cylinder to rotate, and the inner cylinder is provided with a limiting mechanism for limiting the circumferential degree of freedom of the inner cylinder.

As an improvement, the forming device rotates along with the turntable, and in the process of transferring from the second feeding station to the unlocking station, the rotating mechanism drives the outer cylinder to rotate, the limiting mechanism limits the circumferential degree of freedom of the inner cylinder, the inner cylinder descends and moves along the axial direction, and the material smearing mechanism extends out of the outer cylinder and abuts against the outer wall of the column material; in the process that the forming device is transferred from the unlocking station to the discharging station, the rotating mechanism drives the outer cylinder to rotate, the material smearing mechanism rotates synchronously with the outer cylinder, and fluoride salt is smeared on the outer side wall of the column material; in the process that the forming device is transferred from the discharging station to the first feeding station, the rotating mechanism drives the outer barrel to rotate reversely, the limiting mechanism limits the circumferential freedom degree of the inner barrel, and the inner barrel moves upwards along the axial direction to reset.

As an improvement, the rotary mechanism comprises:

the gear ring is coaxially sleeved on the outer circular side wall of the outer barrel;

the first arc-shaped rack is arranged between the second feeding station and the unlocking station, is meshed with the gear ring and drives the outer barrel to rotate forwards;

the second arc-shaped rack is arranged between the unlocking station and the discharging station, is meshed with the gear ring and drives the outer barrel to rotate forwards; and

and the third arc-shaped rack is arranged between the discharging station and the first feeding station, is meshed with the gear ring and drives the outer barrel to rotate reversely.

As an improvement, the limiting mechanism comprises:

the guide rod is hung at the bottom of the outer barrel, is arranged along an annular slide way at the bottom of the outer barrel in a sliding manner, is respectively arranged at two axial sides of the inner barrel, and penetrates through a disc at the bottom of the inner barrel;

the positioning forks are hung under the rotary table through a mounting plate, are arranged in one-to-one correspondence with the inner cylinder and are clamped with the adjacent guide rods to limit the circumferential freedom degree of the inner cylinder, and the circular disc is provided with a notch for the positioning forks to penetrate;

the limiting ring is fixedly arranged on the connecting arm of the positioning fork, and a compressed elastic piece is arranged between the limiting ring and the mounting plate in a propping manner;

the roller is rotatably arranged at one end, pointing to the circle center of the turntable, of the connecting arm; and

the guide disc is fixedly installed on the shell of the rotating shaft of the rotating disc, the edge of the guide disc is abutted to the roller, an inwards-concave defect portion is arranged on the guide disc, the defect portion is located between the unlocking station and the discharging station, and when the roller is abutted to the defect portion, the positioning fork is disengaged from the guide rod.

As an improvement, the bottom of the bottom plate is provided with a jacking cylinder, the forming device is located at the discharging station, and the jacking cylinder drives the lifting upright post on the bottom plate to jack and output.

As an improvement, the smearing mechanism comprises:

one end of the swing arm is hinged with the inner side wall of the outer barrel, and the other end of the swing arm is arranged in a swinging mode;

the upright post is vertically arranged at the swinging end part of the swing arm;

the partition board is arranged adjacent to one side of the upright post, and the top of the partition board is fixedly connected with the swing arm;

the telescopic elastic piece is arranged between the swing arm and the inner side wall of the outer barrel; and

the material pipe is rotatably sleeved on the stand column, a plurality of discharge holes are uniformly distributed on the outer circumferential side wall of the material pipe, a material plate is arranged in the material pipe, the material plate synchronously rotates along with the material pipe to extrude fluoride salt particles between a partition plate and the material plate in the material pipe, the bottom of the material pipe is arranged in a conical shape, and a whole circle of slope part matched with the material pipe is arranged on the outer circumferential side wall of the top of the inner cylinder.

As a refinement, the pressing device comprises:

the pressing cylinder is arranged in the middle of the second feeding bin and is pushed vertically downwards;

the pressing block is arranged on a pushing shaft of the pressing cylinder and extrudes the graphite raw material mixture in the forming device at the second feeding station;

the conveying pipes are arranged at equal intervals along the circumferential direction of the pushing shaft, are in one-to-one correspondence with the material pipes on the forming device, are flexibly arranged at the feeding end connected with the second feeding bin, and are rigidly arranged at the discharging end opposite to the material pipes;

the fixed plate is fixedly arranged on the pushing shaft;

the floating plate is sleeved on the pushing shaft in a sliding mode, is positioned below the fixed plate, is provided with an optical axis between the fixed plate and the floating plate, and is fixedly arranged on the floating plate;

the elastic resetting piece is sleeved on the pushing shaft and is arranged between the fixed plate and the floating plate in a compression mode;

the rotary valve is arranged on the discharging end, a switch gear is arranged on the rotary valve, and the switch gear faces the pushing shaft; and

and the switch rack is arranged on the pressing block and correspondingly matched with the switch gear to control the opening and closing of the discharge end.

The invention has the beneficial effects that:

(1) according to the invention, the column material is pressed and formed by using the material pressing space, after the column material is pressed and formed, fluoride salt particles are coated on the outer circumferential side wall of the column material by the material coating mechanism, the fluoride salt particles are pressed into the outer circumferential side wall of the column material, and the fluoride salt is heated and decomposed in the process of graphitizing the column material, so that pits which are uniformly distributed are formed on the surface layer of graphite, the roughness of the surface of a graphite product is increased, the adhesive force of a dyeing coating is improved, and the fading of the graphite is avoided;

(2) according to the automatic material spreading and shaping device, the shaping device is arranged on the rotary table, the rotary switching of the shaping device among the stations is realized by arranging the plurality of stations on the rotary table, and the inner cylinder can be automatically lifted and arranged by matching with the arrangement of the rotary mechanism and the limiting mechanism, so that the automatic stretching and automatic contraction of the material spreading mechanism are realized, the working connectivity is good, and the automation degree is high;

(3) according to the invention, the material plate and the partition plate are arranged on the material smearing mechanism, and the material plate and the partition plate are extruded, so that the fluoride salt particles in the material pipe are always kept at the same storage height as the height of the column material, and the fluoride salt can be smeared on the side wall of the column material in the height direction of the column material all the time in the rotation process of the material pipe;

(4) according to the invention, by arranging the pressing device, the forming device on the second feeding station can perform pressing work of pressing the graphite raw material mixture in the pressing space into the column material while feeding the fluoride salt particles, so that the working time is saved, and the working efficiency is improved.

In conclusion, the invention has the advantages of rough and uniform surface of the formed graphite product, good adhesive force of the dyed coating, ingenious design of the processing mechanism and the like, and is particularly suitable for the technical field of processing of the fading-proof colored graphite product.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a schematic cross-sectional view of the molding apparatus of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 4 according to the present invention;

FIG. 7 is a schematic perspective view of a molding apparatus according to the present invention;

FIG. 8 is a schematic view of a partial structure of the inner barrel of the present invention;

FIG. 9 is a partial schematic view of the present invention;

FIG. 10 is a schematic perspective view of a spacing mechanism according to the present invention;

FIG. 11 is a schematic top view of the forming apparatus of the present invention;

FIG. 12 is an enlarged view of the structure at C of FIG. 11 according to the present invention;

FIG. 13 is an enlarged view of the structure of FIG. 11 at D in accordance with the present invention;

FIG. 14 is a perspective view of the swing arm of the present invention;

FIG. 15 is a schematic view of a partial structure of a material tube and an inner cylinder according to the present invention;

FIG. 16 is a schematic cross-sectional view of a pressing apparatus according to the present invention;

FIG. 17 is an enlarged view of the structure at E in FIG. 16 according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b):

as shown in fig. 1 to 7, a device for preparing a fading-resistant color graphite handicraft comprises a first feeding bin 11 and a second feeding bin 12 which are arranged side by side, and is characterized in that the first feeding bin 11 is arranged in a cylindrical shape and stores a graphite raw material mixture after stirring, mixing and kneading, and the second feeding bin 12 is arranged in an annular cylindrical shape and stores granular fluoride salt;

the rotating disc 2 is horizontally and rotatably arranged right below the first feeding bin 11 and the second feeding bin 12, and the first feeding bin 11 is positioned in front of the second feeding bin 12 along the rotating direction of the rotating disc 2;

the forming device 3 is provided with four groups of forming devices 3 at equal intervals along the circumferential direction of the rotating disc 2, the forming devices 3 synchronously rotate along with the rotating disc 2, a cylindrical pressing space 31 and a plurality of groups of material smearing mechanisms 32 uniformly distributed around the pressing space 31 are arranged on the forming devices 3, and the material smearing mechanisms 32 smear fluoride salt particles on the outer circumferential side wall of the column material 30 which is pressed and formed in the pressing space 31; and

and the pressing device 4 is installed at the second feeding bin 12, and presses the graphite raw material mixture in the material pressing space 31 of the forming device 3 below the second feeding bin 12.

Wherein, in the circumference of carousel 2, along its direction of rotation equidistance in proper order be provided with first reinforced station 21, the reinforced station 22 of second, unblock station 23 and ejection of compact station 24, first reinforced station 21 is located under the first reinforced storehouse 11, the reinforced station 22 of second is located under the second reinforced storehouse 12, unblock station 23 is just right first reinforced station 21 set up in the opposite side of carousel 2, ejection of compact station 24 is just right the reinforced station 22 of second set up in the opposite side of carousel 2.

It should be noted that, during the raw material pressing process of the graphite product, the following steps exist:

firstly, feeding once, wherein initially, the forming device 3 is positioned at a first feeding station 21 below a first feeding bin 11, the top of an inner barrel 34 is flush with the top of an outer barrel 33, the first feeding bin 11 injects materials into a material pressing space 31 in the inner barrel 34, the injected raw materials are a mixture obtained by stirring, mixing and kneading coke and a binder, the coke is petroleum coke, pitch coke, intermediate phase carbon microspheres or metallurgical coke, the coke raw materials need to be pretreated, and the binder is coal tar pitch, petroleum pitch, artificial resin or sugar solution;

step two, pressing, namely rotating the turntable 2 after finishing material injection to drive the forming device 3 to be transferred to a second feeding station 22 and positioned below the second feeding bin 12, and then starting a pressing cylinder 41 in the pressing device 4 to press down to extrude the raw materials in the material pressing space 31 so as to form a column material 30 with the shape consistent with that of the material pressing space 31;

step three, secondary feeding, synchronous with the step two, in the process that the pressing cylinder 41 presses down, after the material conveying pipe 43 communicated with the second feeding bin 12 is driven by the pressing cylinder 41 to synchronously descend and butt with the material pipe 325 in the material smearing mechanism 32, the pressing cylinder 41 continues to press down, the switch rack 49 is driven to be matched with the switch gear 481 on the material conveying pipe 43, the rotary valve 48 is rotated, the material conveying pipe 43 is opened, and the material pipe 325 is fed with fluoride salt particles;

step four, unlocking, namely after the fluoride salt particle feeding is finished, rotating the turntable 2 to drive the forming device 3 to be transferred to the unlocking station 23, wherein in the transferring process of the forming device 3, the inner cylinder 34 on the forming device 3 descends, the material smearing mechanism 32 on the outer cylinder 33 loses the limitation of the inner cylinder 34, extends out of the outer cylinder 33 and is abutted against the outer circumferential side wall of the column material 30;

step five, smearing, namely after the unlocking of the smearing mechanism 32 is completed, the turntable 2 rotates to drive the forming device 3 to be transferred to the discharging station 24, and in the transferring process, the outer cylinder 33 on the forming device 3 rotates automatically to drive the smearing mechanism 32 to smear along the outer circumferential side wall of the column material 30 in a rolling manner, so that fluoride salt particles are smeared on the outer circumferential side wall of the column material 30;

and sixthly, discharging, namely lifting the bottom plate 35 positioned at the bottom of the outer cylinder 33 after the forming device 3 is transferred to the discharging station 24, lifting and outputting the column material 30 from the outer cylinder 33, then rotating the turntable 2 to drive the forming device 3 to be transferred to the first feeding station 21 from the discharging station 24, wherein in the transfer process, the inner cylinder 34 is lifted and reset to be flush with the outer cylinder 33, the material smearing mechanism 32 retracts into the side wall of the outer cylinder 33, then the output column material 30 is graphitized, fluoride salt particles on the surface of the column material 30 are decomposed to form fluorine gas to be dispersed in the graphitizing process, and pits and holes which are uniformly distributed are newly formed in the surface layer of the column material 30, so that in the subsequent dyeing coating processing process, a pigment coating can be well adhered to a graphite product to wrap the graphite product.

As shown in fig. 4 to 7, as a preferred embodiment, the forming device 3 includes an outer cylinder 33, an inner cylinder 34 and a bottom plate 35, the outer cylinder 33 is rotatably installed on the turntable 2, the material smearing mechanism 32 is installed on the inner circumferential side wall of the outer cylinder at equal intervals, the inner cylinder 34 is coaxially sleeved in the outer cylinder 33 and is vertically arranged, the bottom plate 35 is installed at the bottom of the outer cylinder 33 and forms the pressing space 31 in combination with the inner cylinder 34.

Further, the bottom of the outer cylinder 33 is provided with an internal thread 331, the outer circumferential side wall of the inner cylinder 34 is provided with an external thread 341 which is correspondingly matched with the internal thread 331, the outer cylinder 33 is provided with a rotating mechanism 36 which drives the outer cylinder to rotate, and the inner cylinder 34 is provided with a limiting mechanism 37 which limits the circumferential degree of freedom of the inner cylinder 34.

Furthermore, when the forming device 3 rotates with the turntable 2 and is transferred from the second feeding station 22 to the unlocking station 23, the rotating mechanism 36 drives the outer cylinder 33 to rotate, the limiting mechanism 37 limits the circumferential degree of freedom of the inner cylinder 34, the inner cylinder 34 moves downward in the axial direction, and the material smearing mechanism 32 extends out of the outer cylinder 33 and abuts against the outer wall of the column material 30; in the process that the forming device 3 is transferred from the unlocking station 23 to the discharging station 24, the rotating mechanism 36 drives the outer cylinder 33 to rotate, the smearing mechanism 32 rotates synchronously with the outer cylinder 33, and the outer side wall of the column material 30 is smeared with fluoride salt; in the process that the forming device 3 is transferred from the discharging station 24 to the first feeding station 21, the rotating mechanism 36 drives the outer cylinder 33 to rotate reversely, the limiting mechanism 37 limits the circumferential freedom degree of the inner cylinder 34, and the inner cylinder 34 moves upwards along the axial direction to reset.

It should be noted that, the rotating mechanism 36 can make the outer cylinder 33 rotate around its own axis direction while revolving along with the turntable 2, in the process of transferring the forming device 2 from the second feeding station 22 to the unlocking station 23, the rotating mechanism 36 drives the outer cylinder 33 to rotate, at this time, the limiting mechanism 37 limits the circumferential degree of freedom of the inner cylinder 34, through the matching of the internal thread 331 and the external thread 341, the inner cylinder 34 descends along the axial direction and is separated from the outer cylinder 33, while in the process of transferring the forming device 2 from the unlocking station 23 to the discharging station 24, the outer cylinder 33 rotates, at this time, the limiting mechanism 37 does not limit the circumferential direction of the inner cylinder 34, the inner cylinder 34 rotates synchronously along with the outer cylinder 33, the smearing mechanism 32 mounted on the outer cylinder 33 smears the fluoride salt particles on the column 30 on the bottom plate 35, and in the process of transferring the forming device 2 from the discharging station 24 to the first feeding station 21, the outer cylinder 33 rotates reversely, the limiting mechanism 37 restores the limiting on the inner cylinder 34, the inner cylinder 34 is lifted upwards along the axial direction through the matching of the internal thread 331 and the external thread 341, and the smearing mechanism 32 is compressed into the side wall of the outer cylinder 33.

As shown in fig. 2 and 3, as a preferred embodiment, the rotating mechanism 36 includes:

the gear ring 361 is coaxially sleeved on the outer circular side wall of the outer cylinder 33;

the first arc-shaped rack 362 is arranged between the second feeding station 22 and the unlocking station 23, is meshed with the gear ring 361, and drives the outer cylinder 33 to rotate forwards;

the second arc-shaped rack 363 is arranged between the unlocking station 23 and the discharging station 24, is meshed with the gear ring 361, and drives the outer cylinder 33 to rotate forwards; and

and a third arc-shaped rack 364, wherein the third arc-shaped rack 364 is arranged between the discharging station 24 and the first feeding station 21, is meshed with the gear ring 361, and drives the outer cylinder 33 to rotate reversely.

As shown in fig. 4 to 10, further, the limiting mechanism 37 includes:

the guide rod 371 is hung at the bottom of the outer cylinder 33, is arranged in a sliding manner along the annular slide rail 332 at the bottom of the outer cylinder 33, is respectively arranged at two axial sides of the inner cylinder 34, and penetrates through the disc 342 at the bottom of the inner cylinder 34;

the positioning fork 372 is hung under the rotary table 2 through the mounting plate 370, is arranged in one-to-one correspondence with the inner cylinder 34 and is clamped with the adjacent guide rod 371 to limit the circumferential freedom degree of the inner cylinder 34, a notch 3721 for the positioning fork 372 to penetrate is formed in the disc 342, the upper end part and the lower end part of the positioning fork 372 in the height direction are in splayed open arrangement, and the positioning fork 372 plays a role in guiding when penetrating through the notch 3721;

the limiting ring 373 is fixedly arranged on the connecting arm 374 of the positioning fork 372, and a compressed elastic piece 375 is arranged between the limiting ring 373 and the mounting plate 370 in an abutting mode;

a roller 376, wherein the roller 376 is rotatably mounted at one end of the connecting arm 374 pointing to the circle center of the turntable 2; and

and the guide disc 378 is fixedly installed on the shell of the rotating shaft 25 of the rotating disc 2, the edge of the guide disc 378 is abutted against the roller 376, an inward-concave defect part 379 is arranged on the guide disc 378, the defect part 379 is positioned between the unlocking station 23 and the discharging station 24, and when the roller 376 is abutted against the defect part 379, the positioning fork 372 is disengaged from the guide rod 371.

The positioning fork 372 engages the guide rod 371 with the guide of the roller 376 and the guide disk 378 to restrict the degree of freedom in the circumferential direction of the inner cylinder 34, and when the roller 376 engages with the defective portion 379 on the guide disk 378, the positioning fork 372 disengages from the guide rod 371 to release the restriction of the degree of freedom in the circumferential direction of the inner cylinder 34.

It should be further noted that the second arc-shaped rack 363 is matched with the gear ring 361, when the outer cylinder 33 rotates in the forward direction, the second arc-shaped rack 363 does not cover the whole interval from the unlocking station 23 to the discharging station 24, and at the end of the interval, the gear ring 361 is already separated from the second arc-shaped rack 363 and is engaged with the third arc-shaped rack 364, in other words, when the forming device 2 is transferred to the discharging station 24, the inner cylinder 33 is already lifted upwards by a certain distance in the axial direction, and the smearing mechanism 32 is extruded and retracted into the side wall of the outer cylinder 33, so as to avoid the influence of the smearing mechanism 32 on the output of the column 30 when the column 30 is output at the discharging station 24.

In addition, the bottom of bottom plate 35 is provided with jacking cylinder 351, when forming device 3 was located ejection of compact station 24 department, jacking cylinder 351 drives lifting stand jacking output on the bottom plate 35.

As shown in fig. 11 to 15, as a preferred embodiment, the smearing mechanism 32 includes:

one end of the swing arm 321 is hinged with the inner side wall of the outer cylinder 33, and the other end of the swing arm 321 is arranged in a swinging manner;

the upright column 322 is vertically arranged at the swinging end part of the swing arm 321;

the clapboard 323 is arranged at one side of the upright post 322 in an adjacent way, and the top of the clapboard 323 is fixedly connected with the swing arm 321;

a flexible elastic member 324, wherein the flexible elastic member 324 is disposed between the swing arm 321 and the inner sidewall of the outer cylinder 33; and

the material pipe 325 is rotatably sleeved on the upright column 322, a plurality of discharge holes 3251 are uniformly distributed on the outer circumferential side wall of the material pipe 325, a material plate 326 is arranged in the material pipe 326, the material plate 326 rotates synchronously with the material pipe 325 to extrude fluoride salt particles between a partition 323 and the material plate 326 in the material pipe 325, the bottom of the material pipe 325 is arranged in a conical shape, a whole circle of slope part 343 matched with the material pipe 325 is arranged on the outer circumferential side wall of the top of the inner cylinder 34, in addition, a protective cover is arranged on the outer circumferential side wall of the material pipe 325, a notch is formed in the protective cover at a position close to the partition 323, the fluoride salt particles extruded from the material pipe 325 are coated, and the protective cover can prevent fluoride salt from being discharged from other parts of the material pipe 325.

It should be noted that, when the inner cylinder 34 descends to be separated from the collision with the material pipe 325, the swing arm 321 rotates and swings out from the side wall of the outer cylinder 33 through the telescopic elastic member 324, the material pipe 325 collides with the outer circumferential side wall of the column 30, then the material pipe 325 rotates along the outer circumferential side wall of the column 30 through the rotation of the outer cylinder 33, the fluoride salt particles are discharged from the material pipe 325 and coated on the column 30 through the extrusion of the partition 323 and the material plate 326, it should be emphasized that the partition 323 fixedly arranged is arranged at one side close to the column 30, when the material plate 326 rotates and extrudes to the partition 323, the fluoride salt particles are discharged from the discharge hole 3251 near the partition 323, here, it should be emphasized that, when the coating mechanism 32 finishes the operation, the partition 323 collides with the material plate 326, and when the outer cylinder 33 rotates reversely, and when the inner cylinder 34 ascends, the material pipe 325 rotates reversely by the friction with the inner cylinder 34, resetting the flitch 326.

Further, in the process of ascending and returning the inner cylinder 34, the slope portion 343 disposed at the top of the inner cylinder 34 contacts and presses the tapered portion at the bottom of the material pipe 325 first, so that the material pipe 325 is continuously recovered into the sidewall of the outer cylinder 33 along with the ascending of the inner cylinder 34.

It is further described that a notch 3252 is disposed at the top of the material pipe 325, and a corresponding and elastically telescopic locking block 330 is disposed on the side wall of the outer cylinder 33 for accommodating the material pipe 325, so that when the locking block 330 is correspondingly engaged with the notch 3252, the material pipe 325 is locked, and the material pipe 325 is prevented from rotating when the material smearing mechanism 32 does not work.

As shown in fig. 16 and 17, as a preferred embodiment, the pressing device 4 includes:

the pressing air cylinder 41 is arranged in the middle of the second feeding bin 12, and the pressing air cylinder 41 is pushed vertically downwards;

a pressed block mounted on the pushing shaft of the pressing cylinder 41, which presses the graphite raw material mixture in the molding device 3 at the second feeding station 22;

the conveying pipes 43 are arranged at equal intervals along the circumferential direction of the pushing shaft, are arranged in one-to-one correspondence to the material pipes 325 on the forming device 3, and are flexibly arranged at the feeding end 431 connected with the second feeding bin 12 and rigidly arranged at the discharging end 432 opposite to the material pipes 325;

a fixing plate 44, wherein the fixing plate 44 is fixedly arranged on the pushing shaft;

the floating plate 45 is slidably sleeved on the pushing shaft, is positioned below the fixed plate 44, is provided with an optical axis 46 between the fixed plate 44 and the floating plate 45, and is fixedly arranged on the discharging end 432;

an elastic restoring member 47, wherein the elastic restoring member 47 is sleeved on the pushing shaft and is compressed between the fixed plate 44 and the floating plate 45;

a rotary valve 48, wherein the rotary valve 48 is mounted on the discharging end 432, and a switch gear 481 is arranged on the rotary valve 48, and the switch gear 481 is arranged towards the pushing shaft; and

and the switch rack 49 is arranged on the pressing block, and is correspondingly matched with the switch gear 481 to control the opening and closing of the discharge end 432.

It should be noted that, at the second feeding station 22, the pressing cylinder 41 drives the pressing block to extrude into the pressing space 31 in the forming device 3, so that the graphite raw material mixture is formed into the column material 30 in the inner cylinder 34, meanwhile, the conveying pipe 43 descends along with the pushing shaft synchronously, and is butted with the material pipe 325 on the material smearing mechanism 32, after the butting is completed, the pressing cylinder 41 continues to push, through the matching of the switch rack 49 and the switch gear 481, the conveying pipe 43 is opened to feed the material pipe 325 with fluoride salt granularity, and after the pushing of the pressing cylinder 41 is completed, the pressing block needs to be stationary for a period of time, and the pressing state is maintained, at this time, the conveying pipe 43 completes the feeding work of the material pipe 325, and then the pressing cylinder 41 is recovered, and the conveying pipe 43 is closed through the switch rack 49 and the switch gear 481.

The working process is as follows:

unlocking, namely after fluoride salt particle feeding is completed, rotating the turntable 2 to drive the forming device 3 to be transferred to an unlocking station 23, wherein in the transfer process of the forming device 3, the inner cylinder 34 on the forming device 3 descends, the material smearing mechanism 32 on the outer cylinder 33 loses the limit of the inner cylinder 34, extends out of the outer cylinder 33 and is abutted against the outer circumferential side wall of the column material 30;

step five, smearing, namely after the unlocking of the smearing mechanism 32 is completed, rotating the turntable 2 to drive the forming device 3 to be transferred to the discharging station 24, and in the transferring process, rotating the outer cylinder 33 on the forming device 3 automatically to drive the smearing mechanism 32 to carry out rolling smearing along the outer circumferential side wall of the column material 30, so that fluoride salt particles are smeared on the outer circumferential side wall of the column material 30;

and sixthly, discharging, namely after the forming device 3 is transferred to the discharging station 24, lifting the bottom plate 35 at the bottom of the outer cylinder 33, lifting and outputting the column material 30 from the outer cylinder 33, then rotating the turntable 2 to drive the forming device 3 to be transferred to the first feeding station 21 from the discharging station 24, wherein in the transferring process, the inner cylinder 34 is lifted and reset to be flush with the outer cylinder 33, and the material smearing mechanism 32 retracts into the side wall of the outer cylinder 33.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The preparation equipment of the fading-proof color graphite handicraft comprises a first feeding bin (11) and a second feeding bin (12) which are arranged side by side, and is characterized in that the first feeding bin (11) is arranged in a cylindrical shape, a graphite raw material mixture after stirring, mixing and kneading is stored in the first feeding bin, and the second feeding bin (12) is arranged in an annular cylindrical shape, and granular fluoride salt is stored in the second feeding bin;

the rotary table (2) is horizontally and rotatably arranged right below the first feeding bin (11) and the second feeding bin (12), and the first feeding bin (11) is positioned in front of the second feeding bin (12) along the rotating direction of the rotary table (2);

the forming device (3) is provided with four groups of forming devices (3) at equal intervals along the circumferential direction of the rotating disc (2), the forming devices (3) synchronously rotate along with the rotating disc (2), the forming devices (3) are provided with cylindrical pressing spaces (31) and a plurality of groups of material smearing mechanisms (32) which are uniformly distributed around the pressing spaces (31), and the material smearing mechanisms (32) smear fluoride salt particles on the outer circumferential side walls of the column materials (30) which are subjected to compression forming in the pressing spaces (31);

the forming device (3) comprises an outer cylinder (33), an inner cylinder (34) and a bottom plate (35), the outer cylinder (33) is rotatably installed on the turntable (2), the material smearing mechanisms (32) are installed on the side wall of the inner circumference of the outer cylinder at equal intervals, the inner cylinder (34) is coaxially sleeved in the outer cylinder (33) and is arranged in a vertically lifting mode, the bottom plate (35) is arranged at the bottom of the outer cylinder (33) and combined with the inner cylinder (34) to form the material pressing space (31); and

the pressing device (4) is installed at the second feeding bin (12) and presses the graphite raw material mixture in the material pressing space (31) of the forming device (3) below the second feeding bin (12).

2. The preparation equipment of a color fading prevention graphite handicraft according to claim 1, characterized in that in the circumference of the rotary table (2), a first feeding station (21), a second feeding station (22), an unlocking station (23) and an outlet station (24) are sequentially and equidistantly arranged along the rotation direction of the rotary table, the first feeding station (21) is located under the first feeding bin (11), the second feeding station (22) is located under the second feeding bin (12), the unlocking station (23) is right opposite to the first feeding station (21) arranged on the other side of the rotary table (2), and the outlet station (24) is right opposite to the second feeding station (22) arranged on the other side of the rotary table (2).

3. The equipment for preparing the fading-resistant color graphite handicraft according to claim 2, wherein the bottom of the outer cylinder (33) is provided with an internal thread (331), the outer circumferential side wall of the inner cylinder (34) is provided with an external thread (341) correspondingly matched with the internal thread (331), the outer cylinder (33) is provided with a rotating mechanism (36) for driving the outer cylinder to rotate, and the inner cylinder (34) is provided with a limiting mechanism (37) for limiting the circumferential degree of freedom of the inner cylinder (34).

4. The equipment for preparing the fading-resistant color graphite handicraft according to claim 3, wherein the forming device (3) rotates with the turntable (2), and during the process of transferring from the second feeding station (22) to the unlocking station (23), the rotating mechanism (36) drives the outer cylinder (33) to rotate, the limiting mechanism (37) limits the circumferential freedom degree of the inner cylinder (34), the inner cylinder (34) moves downwards along the axial direction, and the smearing mechanism (32) extends from the outer cylinder (33) and is abutted against the outer wall of the column material (30); in the process that the forming device (3) is transferred from the unlocking station (23) to the discharging station (24), the rotating mechanism (36) drives the outer cylinder (33) to rotate, the smearing mechanism (32) rotates synchronously with the outer cylinder (33), and fluoride salt is smeared on the outer side wall of the column material (30); in the process that the forming device (3) is transferred to the first feeding station (21) from the discharging station (24), the rotating mechanism (36) drives the outer cylinder (33) to rotate reversely, the limiting mechanism (37) limits the circumferential degree of freedom of the inner cylinder (34), and the inner cylinder (34) moves upwards along the axial direction to reset.

5. The apparatus for preparing a fade-resistant color graphite artwork according to claim 3, wherein said rotating mechanism (36) comprises:

the gear ring (361) is coaxially sleeved on the outer circular side wall of the outer cylinder (33);

the first arc-shaped rack (362), the first arc-shaped rack (362) is arranged between the second feeding station (22) and the unlocking station (23), is meshed with the gear ring (361), and drives the outer cylinder (33) to rotate forwards;

the second arc-shaped rack (363) is arranged between the unlocking station (23) and the discharging station (24), is meshed with the gear ring (361), and drives the outer cylinder (33) to rotate forwards; and

and the third arc-shaped rack (364) is arranged between the discharging station (24) and the first feeding station (21), is meshed with the gear ring (361) and drives the outer cylinder (33) to rotate reversely.

6. The apparatus for preparing a fading-resistant color graphite handicraft according to claim 3, wherein said limiting mechanism (37) comprises:

the guide rod (371) is hung at the bottom of the outer cylinder (33), arranged in a sliding manner along an annular slide way (332) at the bottom of the outer cylinder (33), respectively arranged at two axial sides of the inner cylinder (34) and penetrating through a disc (342) at the bottom of the inner cylinder (34);

the positioning fork (372) is hung under the rotary table (2) through a mounting plate (370), is in one-to-one correspondence with the inner cylinder (34) and is clamped with the adjacent guide rod (371) to limit the circumferential freedom degree of the inner cylinder (34), and a notch (3721) for the positioning fork (372) to penetrate through is formed in the disc (342);

the limiting ring (373) is fixedly arranged on the connecting arm (374) of the positioning fork (372), and a compressed elastic piece (375) is arranged between the limiting ring (373) and the mounting plate (370) in an abutting mode;

the roller (376), the roller (376) is rotatably mounted at one end of the connecting arm (374) pointing to the circle center of the turntable (2); and

the guide disc (378) is fixedly installed on a shell of a rotating shaft (25) of the rotary disc (2), the edge of the guide disc (378) is abutted to the roller (376), an inward-concave defect portion (379) is arranged on the guide disc, the defect portion (379) is located between the unlocking station (23) and the discharging station (24), and when the roller (376) is abutted to the defect portion (379), the positioning fork (372) is disengaged from the guide rod (371).

7. The equipment for preparing the fading-resistant color graphite handicraft according to claim 2, wherein a jacking cylinder (351) is arranged at the bottom of the bottom plate (35), and when the forming device (3) is located at the discharging station (24), the jacking cylinder (351) drives the lifting upright column on the bottom plate (35) to jack up and output.

8. The apparatus for preparing a fade-resistant color graphite artwork according to claim 2, wherein said smearing mechanism (32) comprises:

one end of the swing arm (321) is hinged with the inner side wall of the outer cylinder (33), and the other end of the swing arm (321) is arranged in a swinging mode;

the upright post (322), the upright post (322) is vertically arranged at the swinging end part of the swinging arm (321);

the clapboard (323) is arranged at one side of the upright post (322) in an adjacent way, and the top of the clapboard (323) is fixedly connected with the swing arm (321);

the telescopic elastic piece (324) is arranged between the swing arm (321) and the inner side wall of the outer cylinder (33); and

the material pipe (325) is rotatably sleeved on the upright post (322), a plurality of discharge holes (3251) are uniformly distributed on the outer circumferential side wall of the material pipe (325), a material plate (326) is arranged in the material pipe (325), the material plate (326) synchronously rotates along with the material pipe (325) to extrude fluoride salt particles between a partition plate (323) in the material pipe (325) and the material plate (326), the bottom of the material pipe (325) is arranged in a tapered shape, and a whole circle of slope part (343) matched with the material pipe (325) is arranged on the outer circumferential side wall of the top of the inner cylinder (34).

9. The apparatus for preparing a fade-resistant color graphite artwork according to claim 8, wherein said pressing device (4) comprises:

the pressing air cylinder (41), the pressing air cylinder (41) is arranged in the middle of the second feeding bin (12), and the pressing air cylinder is pushed vertically downwards;

a pressing block mounted on a pushing shaft of the pressing cylinder (41) and pressing the graphite raw material mixture in the forming device (3) at the second feeding station (22);

the conveying pipes (43) are arranged at equal intervals along the circumferential direction of the pushing shaft, are arranged in one-to-one correspondence to the material pipes (325) on the forming device (3), are flexibly arranged at the feeding end (431) connected with the second feeding bin (12), and are rigidly arranged at the discharging end (432) opposite to the material pipes (325);

the fixing plate (44), the said fixing plate (44) is fixedly mounted on said pushing shaft;

the floating plate (45) is sleeved on the pushing shaft in a sliding mode, is positioned below the fixed plate (44), is provided with an optical axis (46) between the fixed plate (44) and the floating plate (45), and is fixedly arranged on the floating plate (45) at the discharging end (432);

the elastic resetting piece (47) is sleeved on the pushing shaft, and is arranged between the fixed plate (44) and the floating plate (45) in a compression mode;

a rotary valve (48), wherein the rotary valve (48) is arranged on the discharge end (432), a switch gear (481) is arranged on the rotary valve (48), and the switch gear (481) is arranged towards the pushing shaft; and

the switch rack (49) is arranged on the pressing block and is correspondingly matched with the switch gear (481) to control the opening and closing of the discharge end (432).