CN112373105A

CN112373105A - Graphite product production equipment with gorgeous surface color

Info

Publication number: CN112373105A
Application number: CN202011069191.9A
Authority: CN
Inventors: 黄海; 马伟; 冯国超
Original assignee: Sinosteel Corp New Material Zhejiang Co ltd
Current assignee: Symantec Advanced Materials Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-02-19
Anticipated expiration: 2040-09-30
Also published as: CN112373105B

Abstract

The invention relates to the technical field of color graphite processing, in particular to a graphite product production device with gorgeous surface color, which comprises a first feeding bin, a second feeding bin, a rotary table, a forming device and a pressing device, wherein the forming device arranged on an inner barrel and an outer barrel is utilized to press a graphite core material without fluoride salt, the outer barrel is utilized to press a graphite surface layer material containing fluoride salt, the graphite surface layer material and the graphite core material are combined by impregnation after being pressed, then, in the carbonization process, the fluoride salt is decomposed, pits are uniformly distributed on the graphite surface layer, the roughness of the graphite product surface 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

Graphite product production equipment with gorgeous surface color

Technical Field

The invention relates to the technical field of color graphite processing, in particular to a graphite product production device with gorgeous surface color.

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 a graphite product production device with gorgeous surface color, which utilizes a forming device arranged on an inner cylinder and an outer cylinder to press a graphite core material without fluoride salt by utilizing the inner cylinder, utilizes the outer cylinder to press a graphite surface layer material containing fluoride salt, combines the graphite surface layer material and the graphite core material by impregnation after the graphite surface layer material and the graphite core material are pressed, and then decomposes the fluoride salt in the carbonization process to form pits which are uniformly distributed on the graphite surface layer, thereby increasing the roughness of the graphite product surface, improving the adhesive force of a dyeing coating and solving the technical problem that the dyeing color of the graphite product is easy to separate and fade.

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

a graphite product production device with gorgeous surface color comprises a first feeding bin and a second feeding bin which are arranged side by side, wherein a graphite raw material mixture after stirring and kneading is stored in the first feeding bin, and a graphite raw material mixture containing fluoride salt after stirring and kneading is stored in the second feeding bin;

the rotating disc is 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 rotating disc;

the forming devices are arranged on the rotary table at equal intervals along the circumference of the axis of the rotary table and are provided with four groups, each forming device comprises a bottom plate, an inner cylinder coaxially sleeved on the bottom plate and an outer cylinder coaxially sleeved outside the inner cylinder, the outer cylinders are arranged on the rotary table, the bottom plate and the outer cylinders can rotate along the axial direction of the forming devices when revolving along with the rotary table, a cylindrical core material pressing area is arranged in the inner cylinder, an annular surface material pressing area is arranged between the inner cylinder and the outer cylinder, and the inner cylinder is driven by a lifting device to slide and lift along the axial direction of the rotary table; and

the suppression device, the suppression device set up in the top of carousel, it includes first pressing mechanism and second pressing mechanism, first pressing mechanism set up in first add the feed bin with the second adds between the feed bin, second pressing mechanism follows the direction of rotation of carousel set up in the second adds the rear in feed bin.

As an improvement, the first discharge port of the first feeding bin and the core material pressing area are arranged in a copying manner, and the second discharge port of the second feeding bin and the surface material pressing area are arranged in a copying manner.

As an improvement, a first material injection station, a first pressing station, a second material injection station, a second pressing station, a discharging station and a cleaning station are sequentially arranged on the rotary table around the rotation direction of the rotary table, the first material injection station is positioned under the first feeding bin, the first pressing station is positioned under the first pressing mechanism, the second material injection station is positioned under the second feeding bin, the second pressing station is positioned under the second pressing mechanism, the discharging station is over against the first material injection station arranged at the other end of the rotary table, and the cleaning station is over against the second material injection station arranged at the other end of the rotary table.

As an improvement, when the forming device is located at the first material injection station, the inner cylinder is located at the outer cylinder, a cover plate covering the outer cylinder is arranged at the top of the inner cylinder, and in the process that the forming device is transferred from the first pressing station to the second material injection station, the inner cylinder descends, the cover plate on the inner cylinder descends to be level with the bottom plate, and the cover plate is supported by a supporting plate at the bottom of the outer cylinder.

As an improvement, in the process that the forming device is transferred from the second pressing station to the discharging station, the bottom plate and the inner cylinder are lifted synchronously to eject the cylindrical graphite blank pressed and formed in the forming device, and in the process that the forming device is transferred from the discharging station to the cleaning station, the bottom plate and the inner cylinder are lowered synchronously to reset.

As an improvement, the first pressing mechanism comprises a first pressing die head pushed by a cylinder, the first pressing die head and the core material pressing area are in copying arrangement, the second pressing mechanism comprises a second pressing die head pushed by the cylinder, and the second pressing die head and the surface material pressing area are in copying arrangement.

As an improvement, the lifting device comprises:

the first lifting mechanism drives the inner cylinder to reciprocate along the axial direction of the inner cylinder to lift and slide in the process of switching from the cleaning station to the second material injection station; and

and the second lifting mechanism drives the bottom plate and the inner cylinder to synchronously reciprocate along the axial direction of the inner cylinder to lift and slide in the process of switching from the second pressing station to the cleaning station.

As an improvement, the first lifting mechanism includes:

the screw rod is coaxially connected and arranged below the bottom plate;

the screw rod nut is arranged at the bottom of the inner barrel and is correspondingly matched with the screw rod;

the gear is coaxially connected and arranged at the bottom of the screw rod;

the gear ring is sleeved on the outer cylinder, and a threaded matching structure is arranged at the sleeved position between the outer cylinder and the inner cylinder;

the first rack is arranged between the cleaning station and the first material injection station and correspondingly matched with the gear;

the second rack is arranged between the cleaning station and the first material injection station and correspondingly matched with the gear ring;

the third rack is arranged between the first pressing station and the second material injection station and correspondingly matched with the gear;

the fourth rack is arranged between the first pressing station and the second material injection station and correspondingly matched with the gear ring;

the guide rod is hung at the bottom of the outer barrel, arranged in a relative sliding manner with the outer barrel, respectively arranged at two axial sides of the inner barrel and penetrated on a disc at the bottom of the inner barrel; and

and the positioning fork is arranged below the rotary table, is in one-to-one correspondence with the forming device, is clamped with the guide rod and is used for limiting and fixing the annular direction of the inner cylinder.

As an improvement, the second elevating mechanism includes:

the clutch disc is coaxially connected above the gear, and a bayonet is arranged on one side of the clutch disc, which is opposite to the positioning fork;

the clutch fork is adjacently arranged on one side of the clutch disc, and in the process that the bottom plate is switched from the second pressing station to the cleaning station, the clutch fork and the positioning fork are in inserting fit with the bayonet to limit and fix the annular direction of the bottom plate;

the fifth rack is arranged between the second pressing station and the discharging station and correspondingly matched with the gear ring; and

and the sixth rack is arranged between the discharging station and the cleaning station and correspondingly matched with the gear ring.

As an improvement, the clutch fork passes through the connecting plate with carousel erection joint, just the middle part of clutch fork is provided with the spacing ring, this spacing ring with it is provided with the elastic component to contradict between the connecting plate, just the clutch fork finger to the one end of carousel axle center position is provided with the gyro wheel, be provided with on the carousel with the gyro wheel corresponds conflict complex leading wheel.

The invention has the beneficial effects that:

(1) according to the invention, the inner cylinder is used for pressing the graphite core material without fluoride salt by using the forming device arranged on the inner cylinder and the outer cylinder, the graphite surface material containing fluoride salt is pressed by using the outer cylinder, the graphite surface material and the graphite core material are combined by impregnation after being pressed, and then the fluoride salt is decomposed in the carbonization process, so that pits which are uniformly distributed are formed on the graphite surface layer, the roughness of the surface of the graphite product is increased, the adhesive force of a dyeing coating is improved, and the fluoride salt is not arranged in the graphite core material, so that the structure of the graphite core material is not damaged, and the strength of the graphite product is ensured;

(2) according to the invention, the forming device is arranged on the turntable, the plurality of stations are arranged on the turntable, the forming device is rotationally switched among the stations, and the turntable is driven to drive the inner cylinder to be lifted and switched by taking the rotation of the turntable as power in the rotating process by matching with the arrangement of the first lifting mechanism in the lifting device, so that the forming device can sequentially complete the pressing work of the graphite core material and the graphite surface layer material, and the processing steps are tightly connected;

(3) according to the invention, through the arrangement of the second lifting mechanism in the lifting device, the inner cylinder and the bottom plate are synchronously lifted in the process that the forming rotating shaft is switched along with the rotation of the turntable, so that the graphite core material and the graphite surface material can be directly and automatically lifted and output from the outer cylinder after being pressed, the damage of the graphite core material and the graphite surface material is avoided, and the structural design is ingenious.

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 colored graphite products.

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 third schematic perspective view of the present invention;

FIG. 4 is a schematic perspective view of a molding apparatus according to the present invention;

FIG. 5 is a schematic cross-sectional view of the molding apparatus of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 5 according to the present invention;

FIG. 7 is a schematic top view of the turntable according to the present invention;

FIG. 8 is a perspective view of the turntable according to the present invention;

FIG. 9 is a schematic cross-sectional view of a molding apparatus at a second injection station in accordance with the present invention;

FIG. 10 is a schematic cross-sectional view of a forming apparatus at a discharge station in accordance with the present invention;

FIG. 11 is a schematic view of a portion of the lifting device according to the present invention;

FIG. 12 is a schematic view of a second embodiment of the lifting device of the present invention;

FIG. 13 is a third schematic view of a part of the lifting device of the present invention;

fig. 14 is a partial structural schematic diagram of the lifting device of 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.

The first embodiment is as follows:

as shown in fig. 1 to 8, a graphite product production apparatus with gorgeous surface color comprises a first feeding bin 11 and a second feeding bin 12 which are arranged side by side, wherein a graphite raw material mixture after stirring and kneading is stored in the first feeding bin 11, a graphite raw material mixture containing fluoride salt after stirring and kneading is stored in the second feeding bin 12, sensors for sensing a forming device 3 are arranged at the first feeding bin 11 and the second feeding bin 12, and the first feeding bin 11 and the second feeding bin 12 are started to feed after the sensors sense the forming device 3;

the rotating disc 2 is 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 arranged on the rotary table 2 at equal intervals along the circumference of the axis of the rotary table 2, and is provided with four groups, and comprises a bottom plate 31, an inner cylinder 32 coaxially sleeved on the bottom plate 31 and an outer cylinder 33 coaxially sleeved outside the inner cylinder 32, the outer cylinder 33 is arranged on the rotary table 2, the bottom plate 31 and the outer cylinder 33 can rotate along the axial direction of the rotary table 2 while revolving along with the rotary table, a cylindrical core material pressing area 321 is arranged in the inner cylinder 32, an annular surface material pressing area 331 is arranged between the inner cylinder 32 and the outer cylinder 33, and the inner cylinder 32 is driven by a lifting device 5 to slide and lift along the axial direction of the rotary table 2; and

suppression device 4, suppression device 4 set up in the top of carousel 2, it includes first suppression mechanism 41 and second suppression mechanism 42, first suppression mechanism 41 set up in first add feed bin 11 with the second adds between the feed bin 12, second suppression mechanism 42 is followed the direction of rotation of carousel 2 set up in the second adds the rear of feed bin 12.

Further, first discharge gate 111 that adds feed bin 11 with core material suppression district 321 is the profile modeling setting, the second discharge gate 121 that the storehouse 12 was added to the second with surface material suppression district 331 is the profile modeling setting, and the first discharge gate that adds feed bin 11 and second and add feed bin 12 has all set up discharge valve, and when first feed bin 11 and second added feed bin 12 and sense the forming device 3 that the below was carried, discharge valve was automatic to be opened reinforced.

Further, the first pressing mechanism 41 includes a first pressing die 411 driven by an air cylinder, the first pressing die 411 is disposed in a shape similar to the core material pressing area 321, and the second pressing mechanism 42 includes a second pressing die 421 driven by an air cylinder, the second pressing die 421 is disposed in a shape similar to the skin material pressing area 331.

In addition, a first material injection station 21, a first pressing station 22, a second material injection station 23, a second pressing station 24, a discharging station 25 and a cleaning station 26 are sequentially arranged on the rotary table 2 along the rotation direction of the rotary table, the first material injection station 21 is located under the first feeding bin 11, the first pressing station 22 is located under the first pressing mechanism 41, the second material injection station 23 is located under the second feeding bin 12, the second pressing station 24 is located under the second pressing mechanism 42, the discharging station 25 is right opposite to the first material injection station 21 and is arranged at the other end of the rotary table 2, and the cleaning station 26 is right opposite to the second material injection station 23 and is arranged at the other end of the rotary table 2.

When the forming device 3 is located at the first injecting station 21, the inner cylinder 32 is located at the outer cylinder 33, and a cover plate 322 covering the outer cylinder 33 is arranged at the top of the inner cylinder 32, and in the process that the forming device 3 is transferred from the first pressing station 22 to the second injecting station 23, the inner cylinder 32 descends, the cover plate 322 on the inner cylinder descends to be level with the bottom plate 31, and the cover plate 322 is supported by a support plate 332 at the bottom of the outer cylinder 33.

In the process that the forming device 3 is transferred from the second pressing station 24 to the discharging station 25, the bottom plate 31 and the inner cylinder 32 are lifted synchronously to eject the cylindrical graphite blank 10 pressed and formed in the forming device 3, and in the process that the forming device 3 is transferred from the discharging station 25 to the cleaning station 26, the bottom plate 31 and the inner cylinder 32 are lowered synchronously to reset.

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

firstly, injecting materials at one time, wherein initially, the forming device 3 is positioned at a first material injection station 21 below a first feeding bin 11, a cover plate 322 at the top of an inner barrel 32 is flush with an opening at the top of an outer barrel 33, the cover plate 322 covers a surface material pressing area 331, the first feeding bin 11 injects materials into the inner barrel 32, 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, primary pressing, namely, after the material injection is completed, rotating the turntable 2 to drive the forming device 3 to be transferred to the first pressing station 22 and be positioned below the first pressing mechanism 41, then pressing down the first pressing mechanism 41 to extrude the raw material in the core material pressing area 321, so that the raw material forms a cylindrical body 10a consistent with the core material pressing area 321;

thirdly, injecting materials for the second time, after pressing is completed, rotating the forming device 3 to a second material injection station 23 along with the turntable 2, descending the inner cylinder 32 and the cover plate 322 to be flush with the bottom plate 31 in the transfer process to expose the surface material pressing area 331, injecting materials into the surface material pressing area 331 by the second feeding bin 12, adding fluoride salt into the injected materials on the basis of the materials in the first feeding bin 11, and uniformly distributing the fluoride salt and the materials in the materials by stirring and mixing;

fourthly, secondary pressing is carried out, the rotating disc 2 rotates after the material injection is finished, the forming device 3 is driven to be transferred to a second pressing station 24 and located below the second pressing mechanism 42, then the second pressing mechanism 42 presses downwards, the raw materials in the surface layer material pressing area 331 are extruded, the raw materials form an annular cylinder body which is consistent with the surface layer material pressing area 331, and the annular cylinder body is wrapped outside the cylindrical body 10a to form a graphite blank body 10 b;

and step five, discharging, after pressing is completed, rotating the forming device 3 to a discharging station 25 along with the turntable 2, synchronously lifting the inner cylinder 32 and the bottom plate 31 in the transfer process, lifting the graphite blank 10b from the outer cylinder 33, then transferring the lifted graphite blank 10b to a dipping chamber for dipping, roasting and graphitizing, wherein the cylindrical body 10a and the annular cylinder are connected into a whole through dipping and roasting treatment, and in the graphitizing treatment process, fluoride salt particles in the annular cylinder are decomposed on the surface layer of the graphite product to form pits and pores which are uniformly distributed, so that in the subsequent dyeing coating processing process, the pigment coating can be well adhered to the graphite product to wrap the graphite product.

As shown in fig. 8 to 14, as a preferred embodiment, the lifting device 5 includes:

the first lifting mechanism 51 drives the inner cylinder 32 to reciprocate along the axial direction of the inner cylinder 32 to lift and slide in the process of switching from the cleaning station 26 to the second material injection station 23; and

and a second lifting mechanism 52, wherein the second lifting mechanism 52 drives the bottom plate 31 and the inner cylinder 32 to reciprocate along the axial direction of the inner cylinder 32 in the process of switching from the second pressing station 24 to the cleaning station 26.

Further, the first elevating mechanism 51 includes:

the screw rod 511 is coaxially connected and arranged below the bottom plate 31;

the screw rod nut 512 is installed at the bottom of the inner cylinder 32, and the screw rod nut 512 is correspondingly matched with the screw rod 511;

the gear 513 is coaxially connected and arranged at the bottom of the screw rod 511;

the gear ring 514 is sleeved on the outer cylinder 33, and a threaded matching structure 333 is arranged at the sleeved position between the outer cylinder 33 and the inner cylinder 32;

the first rack 515 is arranged between the cleaning station 26 and the first material injection station 21, and is correspondingly matched with the gear 513;

the second rack 516 is arranged between the cleaning station 26 and the first material injection station 21, and the second rack 516 is correspondingly matched with the gear ring 514;

the third rack 517 is arranged between the first pressing station 22 and the second injecting station 23, and is correspondingly matched with the gear 513;

a fourth rack 518, where the fourth rack 518 is disposed between the first pressing station 22 and the second injecting station 23, and is correspondingly matched with the gear ring 514;

the guide rod 519 is hung at the bottom of the outer cylinder 33, an annular slide way for the guide rod 519 to slide is arranged at the bottom of the outer cylinder 33, the annular slide way and the outer cylinder 33 are arranged in a sliding mode, the annular slide way and the outer cylinder 33 are respectively arranged on two axial sides of the inner cylinder 32, and the annular slide way and the inner cylinder 32 penetrate through the disc 323 at the bottom of the inner; and

and the positioning fork 510 is arranged below the turntable 2, is in one-to-one correspondence with the forming device 3, is clamped with the guide rod 519, and is used for limiting and fixing the annular direction of the inner cylinder 32.

Further, the second elevating mechanism 52 includes:

the clutch disc 521 is coaxially connected above the gear 513, and a bayonet 520 is arranged on one side of the clutch disc 521, which faces the positioning fork 510;

the clutch fork 522 is arranged on one side of the clutch disc 521 in an adjacent mode, and in the process that the bottom plate 31 is switched from the second pressing station 24 to the cleaning station 26, the clutch fork 522 and the positioning fork 510 are inserted and matched with the bayonet 520 to limit and fix the annular direction of the bottom plate 31;

the fifth rack 523 is arranged between the second pressing station 24 and the discharging station 25, and the fifth rack 523 is correspondingly matched with the gear ring 514; and

and a sixth rack 524, wherein the sixth rack 524 is arranged between the discharging station 25 and the cleaning station 26, and is correspondingly matched with the gear ring 514.

In addition, the clutch fork 522 is connected with the turntable 2 through a connecting plate 525 in an installing manner, a limiting ring 526 is arranged in the middle of the clutch fork 522, an elastic member 527 is arranged between the limiting ring 526 and the connecting plate 525 in a propping manner, a roller 528 is arranged at one end of the clutch fork 522 pointing to the axis position of the turntable 2, and a guide wheel 529 which is correspondingly matched with the roller 528 in a propping manner is arranged on the turntable 2.

It should be noted that, in the process of transferring the forming device 3 from the first main material station 21 to the first pressing station 22, the screw 511 is rotated through the cooperation of the gear 513 and the third rack 517, and simultaneously the outer cylinder 33 is rotated through the cooperation of the gear ring 514 and the fourth rack 518, and the rotation of the outer cylinder 33 and the screw 511 is in the same direction, and the inner cylinder 32 descends along the screw 511 through the cooperation of the screw 511 and the screw nut 512 (at this time, the inner cylinder 32 is limited in the circumferential direction by the cooperation of the positioning fork 510 and the guide rod 519), meanwhile, due to the cooperation of the thread structure 333 arranged between the screw 33 and the inner cylinder 32, the bottom plate 31 connected with the screw 511 is not changed at all, and it should be emphasized that the distance of descending of the inner cylinder 32 through the cooperation of the screw 511 and the screw nut 512 is consistent with the distance of descending of the inner cylinder 32 through the cooperation of the thread structure 333, without interference, during the transfer of the forming spindle 3 from the cleaning station 26 to the first injection station 21, the gear ring 514 cooperates with the second rack 516 through the cooperation of the gear 513 with the first rack 515, so that in reverse operation, the inner cylinder 32 is raised until the cover plate 322 is flush with the top opening of the outer cylinder 33.

It should be further noted that, in the process of transferring the forming device 3 from the second pressing station 24 to the discharging station 25, the outer cylinder 33 rotates by the cooperation of the gear ring 514 and the fifth rack 523, in the process of rotating, due to the arrangement of the screw mechanism 333, and the circumferential directions of the inner cylinder 32 and the bottom plate 31 are both limited at this time, so that the inner cylinder 32 and the bottom plate 31 are lifted synchronously, the graphite blank 10b is lifted and ejected from the outer cylinder 33, so as to discharge the graphite blank 10b, while in the process of transferring the forming device 3 from the discharging station 25 to the cleaning station 26, the outer cylinder 33 rotates reversely by the cooperation of the gear ring 514 and the sixth rack 524, the inner cylinder 32 and the bottom plate 31 are lowered and reset synchronously, it should be emphasized that, in the process of lifting the bottom plate 31, initially, the bottom plate 31 is limited by the engagement of the clutch disc 521 through the clutch fork 522, and is lifted continuously, the clutch plate 521 engages with the positioning fork 510 to limit the position of the base plate 31.

It should be emphasized that the first and

third racks

515, 517 rotate together with the gear 513 for an integer number of revolutions, and the corresponding second and

fourth racks

516, 518 rotate together with the gear ring 514 for an integer number of revolutions.

Further, in the process of transferring the molding device 3 from the cleaning station 26 to the second pressing station 24, the roller 528 engages with the semicircular portion of the small circle of the guide wheel 529 to disengage the clutch fork 522 from the clutch plate 521, and in the process of transferring the molding device 3 from the second pressing reset 24 to the cleaning station 26, the roller 528 engages with the semicircular portion of the large circle of the guide wheel 529 to engage the clutch fork 522 with the clutch plate 521 to limit the position of the bottom plate 31.

The working process is as follows:

initially, the forming device 3 is located at the first material injection station 21 below the first feeding bin 11, the cover plate 322 at the top of the inner cylinder 32 is flush with the opening at the bottom of the outer cylinder 33, the cover plate 322 covers the surface material pressing area 331, the first feeding bin 11 injects material into the inner cylinder 32, the injected raw material is a mixture of coke and a binder after stirring and kneading, the coke is petroleum coke, pitch coke, intermediate phase carbon microspheres or metallurgical coke, the coke raw material needs to be pretreated, the binder is coal tar pitch, petroleum pitch, artificial resin or sugar solution, the rotating disc 2 rotates after completing injecting material, the forming device 3 is driven to transfer to the first pressing station 22 and located below the first pressing mechanism 41, then the first pressing mechanism 41 presses down to extrude the raw material in the core material pressing area 321, so that the raw material forms a cylindrical body 10a consistent with the core material pressing area 321, and after pressing is completed, the forming device 3 rotates to the second material injection station 23 along with the turntable 2, in the transfer process, the inner cylinder 32 descends, the cover plate 322 descends to be level with the bottom plate 31, the surface material pressing area 331 is exposed, then the second material feeding bin 12 feeds the materials into the surface material pressing area 331, the injected materials are added with fluoride salt on the basis of the materials in the first material feeding bin 11, the fluoride salt and the materials are uniformly distributed in the materials through stirring and kneading, the turntable 2 rotates after the material injection is completed, the forming device 3 is driven to be transferred to the second pressing station 24 and positioned below the second pressing mechanism 42, then the second pressing mechanism 42 presses downwards, the materials in the surface material pressing area 331 are extruded, the materials form an annular cylinder body consistent with the surface material pressing area 331 and are wrapped outside the cylindrical blank body 10a to form a graphite blank body 10b, after the pressing is completed, the forming device 3 rotates to the discharge station 25 along with the turntable 2, in the transfer process, inner tube 32 and the synchronous lifting of bottom plate 31, with graphite embryo 10b from urceolus 33 internal lifting, later the graphite embryo 10b of lifting shifts to and soaks in the flooding chamber, calcination and graphitization are handled, flooding and calcination are handled and are made the cylindricality body 10a and the annular cylinder be connected and form an organic whole, and among the graphitization handling process, fluoride salt granule in the annular cylinder decomposes and gives new out evenly distributed's pit and hole on the top layer of graphite products, make in the follow-up dyeing coating course of working that carries on, the adhesion that pigment coating can be fine is on graphite products, parcel graphite products.

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 graphite product production equipment with gorgeous surface color comprises a first feeding bin (11) and a second feeding bin (12) which are arranged side by side, and is characterized in that a graphite raw material mixture after stirring, mixing and kneading is stored in the first feeding bin (11), and a graphite raw material mixture containing fluoride salt after stirring, mixing and kneading is stored in the second feeding bin (12);

the rotary table (2) is 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 arranged on the rotary table (2) at equal intervals along the circumference of the axis of the rotary table (2), four groups of forming devices are arranged, each forming device comprises a bottom plate (31), an inner cylinder (32) coaxially sleeved on the bottom plate (31) and an outer cylinder (33) coaxially sleeved outside the inner cylinder (32), the outer cylinders (33) are arranged on the rotary table (2), the bottom plates (31) and the outer cylinders (33) can rotate along the axial direction of the inner cylinders when revolving along with the rotary table (2), cylindrical core material pressing areas (321) are arranged in the inner cylinders (32), annular surface material pressing areas (331) are arranged between the inner cylinders (32) and the outer cylinders (33), and the inner cylinders (32) are driven by a lifting device (5) to slide and lift along the axial direction of the rotary table (2); and

suppression device (4), suppression device (4) set up in the top of carousel (2), it includes first suppression mechanism (41) and second suppression mechanism (42), first suppression mechanism (41) set up in first add feed bin (11) with the second adds between feed bin (12), second suppression mechanism (42) are followed the direction of rotation of carousel (2) set up in the second adds the rear of feed bin (12).

2. The graphite product production equipment with gorgeous surface color as claimed in claim 1, wherein the first discharge port (111) of the first feeding bin (11) and the core material pressing area (321) are arranged in a profiling manner, and the second discharge port (121) of the second feeding bin (12) and the surface layer material pressing area (331) are arranged in a profiling manner.

3. The graphite product production equipment with gorgeous surface colors according to claim 1, wherein a first material injection station (21), a first pressing station (22), a second material injection station (23), a second pressing station (24), a material discharging station (25) and a cleaning station (26) are sequentially arranged on the rotary table (2) around the rotation direction of the rotary table, the first material injection station (21) is positioned under the first feeding bin (11), the first pressing station (22) is positioned under the first pressing mechanism (41), the second material injection station (23) is positioned under the second feeding bin (12), the second pressing station (24) is positioned under the second pressing mechanism (42), the material discharging station (25) is arranged at the other end of the rotary table (2) opposite to the first material injection station (21), the cleaning station (26) is arranged at the other end of the rotary table (2) opposite to the second material injection station (23).

4. The apparatus for producing graphite products with gorgeous surface colors as claimed in claim 3, wherein when said forming device (3) is located at said first injecting station (21), said inner cylinder (32) is located at said outer cylinder (33), and a cover plate (322) covering said outer cylinder (33) is arranged on the top of said inner cylinder, and during the process of transferring said forming device (3) from said first pressing station (22) to said second injecting station (23), said inner cylinder (32) descends, the cover plate (322) thereon descends to be level with said bottom plate (31), and said cover plate (322) is supported by a support plate (332) at the bottom of said outer cylinder (33).

5. The graphite product production equipment with gorgeous surface color is characterized in that in the process of transferring the forming device (3) from the second pressing station (24) to the discharging station (25), the bottom plate (31) and the inner cylinder (32) are lifted synchronously, the cylindrical graphite blank (10) pressed and formed in the forming device (3) is ejected out, and in the process of transferring the forming device (3) from the discharging station (25) to the cleaning station (26), the bottom plate (31) and the inner cylinder (32) are lowered synchronously and reset.

6. The graphite product production equipment with gorgeous surface colors as claimed in claim 1, wherein said first pressing mechanism (41) comprises a first pressing die head (411) pushed by a cylinder, the first pressing die head (411) is arranged in a shape of a profile of said core material pressing area (321), said second pressing mechanism (42) comprises a second pressing die head (421) pushed by a cylinder, the second pressing die head (421) is arranged in a shape of a profile of said surface material pressing area (331).

7. The graphite product production equipment with gorgeous surface color according to claim 3, wherein the lifting device (5) comprises:

the first lifting mechanism (51) drives the inner cylinder (32) to reciprocate along the axial direction of the inner cylinder (32) to lift and slide in the process of switching from the cleaning station (26) to the second injection station (23); and

and the second lifting mechanism (52) drives the bottom plate (31) and the inner cylinder (32) to synchronously reciprocate, lift and slide along the axial direction of the inner cylinder (32) in the process of switching from the second pressing station (24) to the cleaning station (26).

8. The apparatus for producing graphite products with gorgeous surface colors as claimed in claim 7, wherein said first elevating mechanism (51) comprises:

the screw rod (511), the said screw rod (511) connects and sets up in the said bottom plate (31) below coaxially;

the screw rod nut (512), the said screw rod nut (512) is mounted to the bottom of the said inner cylinder (32), it cooperates with said feed screw (511) correspondingly;

the gear (513) is coaxially connected and arranged at the bottom of the screw rod (511);

the gear ring (514) is sleeved on the outer cylinder (33), and a threaded matching structure (333) is arranged at the sleeved position between the outer cylinder (33) and the inner cylinder (32);

the first rack (515), the first rack (515) is arranged between the cleaning station (26) and the first material injection station (21), and the first rack (515) is correspondingly matched with the gear (513);

the second rack (516), the second rack (516) is arranged between the cleaning station (26) and the first material injection station (21), and the second rack (516) is correspondingly matched with the gear ring (514);

the third rack (517) is arranged between the first pressing station (22) and the second injecting station (23), and is correspondingly matched with the gear (513);

a fourth rack (518), wherein the fourth rack (518) is arranged between the first pressing station (22) and the second injecting station (23), and is correspondingly matched with the gear ring (514);

the guide rod (519) is hung at the bottom of the outer cylinder (33), arranged in a relative sliding mode with the outer cylinder (33), respectively arranged on two axial sides of the inner cylinder (32) and penetrating through a disc (323) at the bottom of the inner cylinder (32); and

the positioning fork (510) is installed below the rotary disc (2), the positioning fork (510) and the forming device (3) are arranged in a one-to-one correspondence mode, and the positioning fork is clamped with the guide rod (519) to limit and fix the annular direction of the inner cylinder (32).

9. The apparatus for producing graphite products with gorgeous surface colors as claimed in claim 8, wherein said second elevating mechanism (52) comprises:

the clutch disc (521) is coaxially connected above the gear (513), and a bayonet (520) is arranged on one side of the clutch disc (521) opposite to the positioning fork (510);

the clutch fork (522) is arranged on one side of the clutch disc (521) in an adjacent mode, and in the process that the bottom plate (31) is switched to the cleaning station (26) from the second pressing station (24), the clutch fork (522) and the positioning fork (510) are in inserting fit with the bayonet (520) to limit and fix the annular direction of the bottom plate (31);

the fifth rack (523), the fifth rack (523) is arranged between the second pressing station (24) and the discharging station (25), and is correspondingly matched with the gear ring (514); and

a sixth rack (524), wherein the sixth rack (524) is arranged between the discharging station (25) and the cleaning station (26) and is correspondingly matched with the gear ring (514).

10. The graphite product production equipment with gorgeous surface colors as claimed in claim 9, wherein the clutch fork (522) is connected with the turntable (2) through a connecting plate (525), a limiting ring (526) is arranged in the middle of the clutch fork (522), an elastic member (527) is arranged between the limiting ring (526) and the connecting plate (525) in an abutting mode, a roller (528) is arranged at one end, pointing to the axis position of the turntable (2), of the clutch fork (522), and a guide wheel (529) in corresponding abutting fit with the roller (528) is arranged on the turntable (2).