CN112936513B

CN112936513B - Crucible pressing equipment for producing artificial diamond

Info

Publication number: CN112936513B
Application number: CN202011260434.7A
Authority: CN
Inventors: 邹林汇
Original assignee: Hubei Huifeng Diamond Co ltd
Current assignee: Hubei Huishang Diamond Co.,Ltd.
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2022-07-08
Anticipated expiration: 2040-11-12
Also published as: CN112936513A

Abstract

The invention discloses crucible pressing equipment for producing artificial diamond, which relates to the technical field of crucible manufacturing and comprises a hydraulic column arranged at the upper part of a single-arm hydraulic press body, wherein the lower end of the hydraulic column is fixedly connected with an installation block, an upper pressure head is detachably arranged right below the installation block, the middle part of the lower surface of the installation block is fixedly connected with an upper butt joint piece, the middle part of the lower surface of the upper butt joint piece is fixedly connected with one end of a guide column, and the other end of the guide column vertically downwards and slidably penetrates into a sliding insertion concave hole formed in the center of the upper part of a connection block. The invention can enable the upper pressure head to contact the crucible raw material and simultaneously achieve the effect similar to buffering and shock absorption, consume the instantaneous impact force, achieve the effect of buffering and protecting the upper pressure head, reduce the abrasion condition of the upper pressure head, keep the smoothness of the crucible raw material in the clamping die seat with smaller impact force and be beneficial to keeping the quality of the subsequent crucible finished product.

Description

Crucible pressing equipment for producing artificial diamond

Technical Field

The invention relates to the technical field of crucible manufacturing, in particular to crucible pressing equipment for producing artificial diamond.

Background

The existing crucible for diamond production is mainly prepared by a simple compression molding method, uniformly mixing crucible sand and additives according to a ratio, loading the mixture into a steel die, simultaneously pressurizing the mixture from an upper pressure head and a lower pressure head to prepare a crucible blank, taking out the crucible blank, drying and sintering the crucible at a high temperature to obtain a finished crucible. The method can produce crucibles with 50-1000 kg capacity.

Chinese utility model patent CN211333750U discloses a crucible suppression equipment is used in artificial diamond production, the above-mentioned problem has been solved, in this step "pack into the steel mould with crucible sand material and additive according to the ratio misce bene, pressurize simultaneously and make the crucible blank from upper and lower pressure head, because crucible sand material and additive are in the steel mould of packing into for loose state, go up the pressure head decline when contacting the raw materials in the steel mould in the twinkling of an eye, can produce a great pressure, this pressure can lead to the anomalous uplift all around of raw materials at steel mould center, lead to the fold to appear in the upper surface of raw materials in the steel mould, it is level and smooth inadequately, improve follow-up crucible off-the-shelf defective rate easily to a certain extent.

Disclosure of Invention

The invention aims to provide crucible pressing equipment for producing artificial diamond, which solves the problems in the background technology.

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

a crucible pressing device for producing artificial diamond comprises a hydraulic column arranged on the upper portion of a single-arm hydraulic press body, a processing platform for pressing a crucible is arranged on the lower portion of the single-arm hydraulic press body, a clamping die seat for die-filling the crucible is arranged on the processing platform and driven by a power mechanism, an installation block is fixedly connected to the lower end of the hydraulic column, an upper pressing head is detachably arranged under the installation block, an upper butt joint sheet is fixedly connected to the middle of the lower surface of the installation block, the middle of the lower surface of the upper butt joint sheet is fixedly connected with one end of a guide column, the other end of the guide column vertically downwards and slidably penetrates into a sliding insertion concave hole formed in the center of the upper portion of a connecting block, the cross section of the connecting block is integrally formed into a rectangle, an upper pressing head is welded to the lower portion of the connecting block, a lower butt joint sheet is slidably sleeved on the middle of the guide column, and a buffer spring is abutted between the upper surface of the lower butt joint sheet and the lower surface of the upper butt joint sheet, meanwhile, the buffer springs are serially arranged on the corresponding guide columns, symmetrical sliding grooves are further formed in two sides of the circumferential surface of the lower portion of each guide column, sliding blocks matched with the sliding blocks are connected in the sliding grooves in a sliding mode, the sliding blocks are fixed on the connecting blocks through connecting pieces, the two sides of the upper surface of each connecting block are fixedly connected with the supporting columns symmetrically arranged, the top surfaces of the supporting columns are connected with rubber blocks in a composite mode, and butt joint grooves for the rubber blocks to abut against are formed in two sides of the lower surface of each upper butt joint piece.

As a further scheme of the invention: and both sides of the surface of the lower butt joint piece are also in threaded connection with positioning bolts, the positioning bolts are in threaded connection with threaded through holes formed in both sides of the upper surface of the connecting block, and a supporting ring for supporting the lower butt joint piece is fixedly sleeved on a guide column at the lower part of the lower butt joint piece.

As a further scheme of the invention: the connecting piece is a locking long bolt which penetrates through a channel formed in the upper portion of the connecting block, and the tail portion of the locking long bolt is connected in a threaded hole formed in one side face, back to the guide column, of the sliding block in a threaded mode.

As a further scheme of the invention: the sliding block is integrally formed into a rectangular structure, sliding parts are formed on two side faces of the sliding block in a protruding mode, and the sliding parts are connected in limiting guide rails arranged on two side faces of the sliding groove in a sliding mode.

As a further scheme of the invention: the mold clamping seat is divided into a left semicircular steel film and a right semicircular steel film, the sections of the left semicircular steel film and the right semicircular steel film are semicircular, the two semicircular steel films are butted and abutted to form a cylindrical hollow mold, the cylindrical hollow mold is used for pouring mixed crucible sand and additives, and the two semicircular steel films are kept to be tightly attached under the action of a power mechanism.

As a further scheme of the invention: the power mechanism comprises stepping motors fixedly installed on two side faces of the lower portion of the single-arm hydraulic machine body, output ends of the two stepping motors are connected with ends of screw shafts in linear guide rails through couplers, the linear guide rails are fixedly installed on a processing platform at the lower portion of the single-arm hydraulic machine body, two symmetrical moving seats are installed on the linear guide rails in a transmission mode, and one semicircular steel film in a clamping die seat is fixedly connected to each of the two moving seats.

As a further scheme of the invention: two semicircle steel membrane hollow structure and the inside fixedly connected with copper sheet that a plurality of equidistance were arranged of die holder seat, and the intrados of semicircle steel membrane is compound to have one deck heat conduction silicone grease layer.

As a further scheme of the invention: still include the lower pressure head of fixed mounting on the single armed hydraulic press body processing platform, the cavity has inside the lower pressure head, and the top surface fixedly connected with ejector pin vertical down in the cavity, the lower part sliding connection of ejector pin in the spacing slide opening that the excellent top was seted up, the movable rod is the narrow baseball column structure down, and the output of the lower extreme fixed connection cylinder of movable rod, cylinder fixed connection are on the processing platform, be provided with a plurality of ejection mechanism that are used for when the drawing of patterns in the pressure head down.

As a further scheme of the invention: the ejection mechanism comprises an ejection column which is connected with the periphery of the lower pressure head in a penetrating and sliding manner, the inner end of the ejection column is integrally formed into a spherical part which is connected with the movable rod in a sliding manner, a baffle ring is fixedly sleeved on the spherical part, a pressure spring is abutted between the baffle ring and the inner wall of the hollow cavity and sleeved on the corresponding ejection column, and after the movable rod is at an initial position, the outer end face of the ejection column and the outer peripheral face of the lower pressure head are in the same plane.

Compared with the prior art, the invention has the beneficial effects that:

when the upper pressure head is pressed downwards, the connecting block moves along the guide post due to the instantaneous pressure, the buffer spring is pressed against the butt joint groove in the contraction process, the buffer spring is not compressed continuously, the sliding block slides to the highest position in the sliding groove, and in the process, the buffer spring contracts, so that the upper pressure head achieves the effect similar to buffer and shock absorption when contacting the crucible raw material, the instantaneous impact force is consumed, the effect of buffer protection on the upper pressure head is achieved, the abrasion condition of the upper pressure head can be reduced, the smoothness of the crucible raw material in the clamping die seat can be maintained due to the smaller impact force, and the quality of a subsequent crucible finished product can be maintained.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural view of a slider according to the present invention;

FIG. 4 is a schematic view of the installation of the ejection mechanism of the present invention;

fig. 5 is a schematic structural view of a single semicircular steel film of the clamp die holder according to the present invention.

In the figure: 1. a single-arm hydraulic press body; 2. a hydraulic column; 3. mounting a block; 4. an upper pressure head; 5. a clamping die holder; 6. a movable seat; 7. a linear guide rail; 8. a stepping motor; 9. a lower pressure head; 10. a top pillar; 11. a cylinder; 12. connecting blocks; 13. a lower butt-joint plate; 14. a ring; 15. a guide post; 16. a buffer spring; 17. an upper butt-joint piece; 18. a butt joint groove; 19. a rubber block; 20. supporting columns; 21. a chute; 22. locking the long bolt; 23. a slider; 24. sliding and inserting concave holes; 25. a threaded hole; 26. a sliding part; 27. a copper sheet; 28. a thermally conductive silicone layer; 29. a hollow chamber; 30. a top rod; 31. a limiting slide hole; 32. a spherical surface portion; 33. a baffle ring; 34. a pressure spring; 35. perforating; 36. the rod is moved.

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.

Referring to fig. 1 to 5, in the embodiment of the present invention, a crucible pressing apparatus for producing artificial diamond comprises a hydraulic column 2 disposed on an upper portion of a single-arm hydraulic press body 1, a processing platform for pressing a crucible is disposed on a lower portion of the single-arm hydraulic press body 1, a mold clamping base 5 for loading a crucible is disposed on the processing platform, the mold clamping base 5 is driven by a power mechanism, a mounting block 3 is fixedly connected to a lower end of the hydraulic column 2, an upper pressing head 4 is detachably disposed right below the mounting block 3, an upper butt-joint piece 17 is fixedly connected to a middle portion of a lower surface of the mounting block 3, a middle portion of a lower surface of the upper butt-joint piece 17 is fixedly connected to one end of a guide column 15, another end of the guide column 15 vertically faces downward and slidably penetrates into a sliding insertion concave hole 24 formed in a center of an upper portion of a connecting block 12, a cross section of the connecting block 12 is integrally formed into a rectangular shape, and the upper pressing head 4 is welded to a lower portion of the connecting block, and the middle part of the guide post 15 is slidably sleeved with a lower butt joint piece 13, the buffer spring 16 is abutted between the upper surface of the lower butt joint piece 13 and the lower surface of the upper butt joint piece 17 of the lower butt joint piece 13, meanwhile, the buffer spring 16 is arranged on the corresponding guide post 15 in series, two symmetrical slide grooves 21 are also arranged on two sides of the lower peripheral surface of the guide post 15, a slide block 23 matched with the slide grooves 21 is connected in a sliding way, the slide block 23 is fixed on the connecting block 12 through a connecting piece, two symmetrically arranged support posts 20 are also fixedly connected on two sides of the upper surface of the connecting block 12, the top surface of the support post 20 is connected with a rubber block 19 in a compounding way, and two butt joint grooves 18 for the rubber block 19 to press are arranged on two sides of the lower surface of the upper butt joint piece 17, the aim is that when the upper press head 4 presses down, the connecting block 12 moves along the guide post 15 due to instant pressure, and the buffer spring 16 is in the process of contracting, then support post 20 and support and press to butt joint groove 18 in, buffer spring 16 can not continue to receive the compression this moment, slider 23 slides to the highest position in spout 21, and in this process, buffer spring 16 contracts for last pressure head 4 reaches a effect similar to buffering shock attenuation when contacting crucible raw materials, consumes the instantaneous impact force, reaches the effect to last pressure head 4 buffer protection, can alleviate the wearing and tearing condition of last pressure head 4, and less impact force also can keep the planarization of crucible raw materials in die holder 5, helps keeping the quality of follow-up crucible finished product.

Further, two sides of the surface of the lower butt joint piece 13 are further connected with positioning bolts through threads, the positioning bolts are connected in threaded through holes formed in two sides of the upper surface of the connecting block 12 through threads, meanwhile, a supporting ring 14 used for supporting the lower butt joint piece 13 is fixedly sleeved on a guide column 15 at the lower portion of the lower butt joint piece 13, as shown in fig. 2, the supporting ring 14 is fixedly sleeved on the guide column 15, the lower butt joint piece 13 suspends the connecting block 12 and the upper pressure head 4 through the positioning bolts, so that the sliding block 23 can be located at the bottom of the sliding groove 21, when pressing is needed, the upper pressure head 4 is pressed through the lower butt joint piece 13 to compress the buffer spring 16, and the sliding block 23 slides upwards along the sliding groove 21.

Further, the connecting piece is a locking long bolt 22, and locking long bolt 22 runs through and sets up in the passageway that connecting block 12 upper portion was seted up, and locking long bolt 22's afterbody threaded connection in the screw hole 25 that slider 23 set up dorsad a side of guide post 15, locking long bolt 22's effect not only can be connected slider 23 and connecting block 12, make connecting block 12 can follow gliding in guide post 15, and can also twist off locking long bolt 22 from slider 23, then can take out connecting block 12 together with last pressure head 4 from guide post 15, in order to reach the purpose of pressure head 4 in the dismantlement, and then can conveniently reach the purpose of being convenient for change the maintenance, improve the practicality.

Further, the slider 23 is integrally formed to have a rectangular cross section, and the two side surfaces of the slider 23 protrude to form sliding portions 26, and the sliding portions 26 are slidably connected to the limiting guide rails formed on the two side surfaces of the sliding groove 21, so that the sliding effect of the slider 23 in the sliding groove 21 is ensured, and the smooth sliding of the upper pressure head 4 and the connecting block 12 along the guide post 15 is indirectly ensured.

Further, two semicircle steel films that the cross-section is semicircle form about the die holder 5 divide into, and two semicircle steel films form after the butt joint is supported and be used for the cylindric hollow mould that crucible sand material and additive mix the back and pour into, two semicircle steel films keep closely laminating under power unit's effect simultaneously, its aim at, the separation and the laminating operation process of two semicircle steel films are comparatively simple, and the cylindric hollow mould seal preferred that two semicircle steel films formed, thereby can guarantee the stability of cylindric hollow mould when follow-up suppression process.

Further, the power mechanism comprises stepping motors 8 fixedly mounted on two side faces of the lower portion of the single-arm hydraulic press body 1, output ends of the two stepping motors 8 are connected with ends of screw shafts in linear guide rails 7 through couplers, the linear guide rails 7 are fixedly mounted on a processing platform on the lower portion of the single-arm hydraulic press body 1, two symmetrical moving seats 6 are mounted on the linear guide rails 7 in a transmission mode, and one semicircular steel film in a clamping mold seat 5 is fixedly connected to each moving seat 6, so that the purpose of controlling the two semicircular steel films to move in the opposite direction or in the separated direction is achieved by starting and stopping the stepping motors 8, the purpose of mold closing before pressing or mold splitting after pressing is achieved, the operation efficiency in the pressing process can be greatly improved, the processing time is saved, and the effect of improving the production efficiency is achieved.

Further, still fixed mounting has pressure head 9 down on the processing platform of single armed hydraulic press body 1, and pressure head 9 is inside to have a cavity chamber 29 down, and top surface fixedly connected with ejector pin 30 vertical down in cavity chamber 29, and the lower part sliding connection of ejector pin 30 is in the spacing slide opening 31 that 36 tops of removal stick were seted up, and ejector pin 30 can keep removing the steady removal of stick 36, and removal stick 36 is the narrow wide baseball column structure down, and removes the lower extreme fixed connection cylinder 11's of stick 36 output, and cylinder 11 fixed connection is on processing platform, be provided with a plurality of ejection mechanism that are used for when the drawing of patterns in the pressure head 9 down.

Still further, the ejection mechanism includes a top pillar 10 penetrating through and slidably connected to a peripheral portion of the lower pressing head 9 and provided with a through hole 35, an inner end of the top pillar 10 is integrally formed into a spherical portion 32 slidably connected with a moving rod 36, a retaining ring 33 is fixedly sleeved on the spherical portion 32, a pressure spring 34 is abutted between the retaining ring 33 and an inner wall of the hollow chamber 29 and sleeved on the corresponding top pillar 10, and after the moving rod 36 is at an initial position, an outer end face of the top pillar 10 and an outer peripheral face of the lower pressing head 9 are located on the same plane at this time, after pressing is completed, the cylinder 11 is started, the moving rod 36 moves upwards, the spherical portion 32 slides along the moving rod 36 and gradually pushes the top pillar 10 out of the through hole 35 to push an inner surface of the crucible, and a demolding process is achieved.

Further, two semicircle steel membrane hollow structures and inside fixedly connected with copper sheet 27 that a plurality of equidistance were arranged of die holder 5, and the intrados of semicircle steel membrane is compound to have one deck heat conduction silicone grease layer 28, play the radiating effect to the mould.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a crucible suppression equipment for artificial diamond production, includes hydraulic column (2) that single armed hydraulic press body (1) upper portion had, and the lower part of single armed hydraulic press body (1) has the processing platform who is used for suppressing the crucible, is provided with on the processing platform and is used for pressing the mould holder (5) of crucible dress mould, and presss from both sides the mould holder (5) and pass through power unit drive, its characterized in that, the lower extreme fixedly connected with installation piece (3) of hydraulic column (2), the detachable is provided with pressure head (4) under installation piece (3), and the lower surface middle part fixedly connected with of installation piece (3) goes up butt joint piece (17), and goes up the lower surface middle part fixedly connected with one end of guide post (15) of butt joint piece (17), and the other end of guide post (15) is vertical down and slide and run through in the slip shrinkage pool (24) that connecting block (12) upper portion center was seted up, the section of the connecting block (12) is integrally formed into a rectangle, an upper pressure head (4) is welded at the lower part of the connecting block, a lower butt joint sheet (13) is slidably sleeved in the middle of the guide post (15), a buffer spring (16) is abutted between the upper surface of the lower butt joint sheet (13) and the lower surface of the upper butt joint sheet (17) of the lower butt joint sheet (13), meanwhile, the buffer springs (16) are arranged on the corresponding guide posts (15) in series, the two sides of the lower peripheral surface of each guide post (15) are also provided with symmetrical sliding grooves (21), and a sliding block (23) matched with the sliding groove (21) is connected in a sliding way, the sliding block (23) is fixed on the connecting block (12) through a connecting piece, two sides of the upper surface of the connecting block (12) are also fixedly connected with symmetrically arranged support columns (20), the top surfaces of the support columns (20) are compositely connected with rubber blocks (19), and two sides of the lower surface of the upper butt joint sheet (17) are provided with butt joint grooves (18) for the rubber blocks (19) to press.

2. The crucible pressing equipment for producing the artificial diamond according to claim 1, wherein two sides of the surface of the lower butt joint piece (13) are further connected with positioning bolts in a threaded mode, the positioning bolts are connected in threaded through holes formed in two sides of the upper surface of the connecting block (12) in a threaded mode, and a supporting ring (14) used for supporting the lower butt joint piece (13) is further fixedly sleeved on a guide column (15) at the lower portion of the lower butt joint piece (13).

3. The crucible pressing equipment for producing the artificial diamond according to claim 1, wherein the connecting piece is a locking long bolt (22), the locking long bolt (22) is arranged in a channel formed in the upper part of the connecting piece (12) in a penetrating mode, and the tail part of the locking long bolt (22) is connected with a threaded hole (25) formed in one side face, opposite to the guide column (15), of the sliding block (23) in a threaded mode.

4. The crucible pressing equipment for producing the artificial diamond according to claim 1, wherein the sliding block (23) is integrally formed into a rectangular structure in cross section, sliding parts (26) are convexly formed on two side surfaces of the sliding block (23), and the sliding parts (26) are slidably connected in limiting guide rails arranged on two side surfaces of the sliding groove (21).

5. The crucible pressing equipment for producing artificial diamond according to claim 1, wherein the mold clamping seat (5) is divided into a left semicircular steel film and a right semicircular steel film with semicircular cross sections, the two semicircular steel films are butted and abutted to form a cylindrical hollow mold for pouring mixed crucible sand and additives, and the two semicircular steel films are tightly attached under the action of a power mechanism.

6. The crucible pressing equipment for producing the artificial diamond according to claim 1, wherein the power mechanism comprises stepping motors (8) fixedly mounted on two side surfaces of the lower portion of the single-arm hydraulic machine body (1), output ends of the two stepping motors (8) are connected with ends of screw shafts in linear guide rails (7) through couplings, the linear guide rails (7) are fixedly mounted on a processing platform at the lower portion of the single-arm hydraulic machine body (1), two symmetrical moving seats (6) are mounted on the linear guide rails (7) in a transmission mode, and one semicircular steel film in the die clamping seats (5) is fixedly connected to each of the two moving seats (6).

7. The crucible pressing equipment for producing the artificial diamond according to claim 1, wherein the two semicircular steel films of the die holder (5) are of a hollow structure, a plurality of copper sheets (27) are fixedly connected inside the semicircular steel films at equal intervals, and a heat-conducting silicone grease layer (28) is compounded on the inner cambered surfaces of the semicircular steel films.

8. The crucible pressing equipment for producing the artificial diamond according to any one of claims 1 to 7, further comprising a lower pressing head (9) fixedly mounted on a processing platform of the single-arm hydraulic machine body (1), wherein a hollow chamber (29) is formed inside the lower pressing head (9), a vertically downward ejector rod (30) is fixedly connected to the inner top surface of the hollow chamber (29), the lower part of the ejector rod (30) is slidably connected into a limiting sliding hole (31) formed in the top of a moving rod (36), the moving rod (36) is of a baseball-shaped structure with a narrow top and a wide bottom, the lower end of the moving rod (36) is fixedly connected with the output end of the air cylinder (11), the air cylinder (11) is fixedly connected onto the processing platform, and a plurality of ejection mechanisms used for demolding are arranged in the lower pressing head (9).

9. The crucible pressing device for producing the artificial diamond according to claim 8, wherein the ejection mechanism comprises a top pillar (10) penetrating through and slidably connected with a through hole (35) formed in the periphery of the lower pressing head (9), the inner end of the top pillar (10) is integrally formed into a spherical surface portion (32) slidably connected with the moving rod (36), a baffle ring (33) is fixedly sleeved on the spherical surface portion (32), a pressure spring (34) is abutted between the baffle ring (33) and the inner wall of the hollow chamber (29) and sleeved on the corresponding top pillar (10), and after the moving rod (36) is at an initial position, the outer end surface of the top pillar (10) and the outer peripheral surface of the lower pressing head (9) are in the same plane.