CN116984611B - Metal powder sintering filter element forming process and forming device - Google Patents
Metal powder sintering filter element forming process and forming device Download PDFInfo
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- CN116984611B CN116984611B CN202311200677.5A CN202311200677A CN116984611B CN 116984611 B CN116984611 B CN 116984611B CN 202311200677 A CN202311200677 A CN 202311200677A CN 116984611 B CN116984611 B CN 116984611B
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- 238000005245 sintering Methods 0.000 title claims abstract description 60
- 239000000843 powder Substances 0.000 title claims abstract description 45
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title abstract description 12
- 230000008569 process Effects 0.000 title abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 4
- 238000000280 densification Methods 0.000 abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 210000001161 mammalian embryo Anatomy 0.000 description 24
- 230000000694 effects Effects 0.000 description 16
- 239000011148 porous material Substances 0.000 description 10
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 230000009466 transformation Effects 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002277 temperature effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 208000019300 CLIPPERS Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/107—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing organic material comprising solvents, e.g. for slip casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/12—Metallic powder containing non-metallic particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
Abstract
The invention belongs to the technical field of filter element forming, in particular to a metal powder sintering filter element forming process and a metal powder sintering filter element forming device, comprising a placing block; the top end of the placing block is fixedly connected with a furnace body, the furnace body is provided with a group of placing cavities through a partition plate, and both sides of the placing cavities are in an opening state; the two sides of the furnace body are connected with an inverted U-shaped cover plate in a sliding manner; the two sides of the placing block are fixedly connected with first hydraulic cylinders, and the first hydraulic cylinders are fixedly connected with the inverted U-shaped cover plate through hydraulic rods; the position of the placement block relative to the placement cavity is provided with a first chute; the first sliding groove is connected with a first sliding plate in a sliding way; the side wall of the first sliding chute is fixedly connected with a second hydraulic cylinder, and a hydraulic rod on the second hydraulic cylinder is fixedly connected with the bottom end of the first sliding plate; the method solves the problems that no external force acts, the inside of the green body is not uniform enough when densification is carried out, local cavities are formed due to insufficient local densification degree, and the production quality of the final filter element is affected.
Description
Technical Field
The invention belongs to the technical field of filter element forming, and particularly relates to a metal powder sintering filter element forming process and a metal powder sintering filter element forming device.
Background
The sintered filter element is a common filter material, is applied to the filter field of various industries, and has excellent filter effect and service life; the raw materials of the sintering filter element mainly comprise powder metal materials and organic binders, wherein the metal materials comprise stainless steel, iron, copper and the like, and the sintering filter element mainly has the effects of filtering liquid and gas in industrial production and ensuring the safety and stability of the production process.
In the prior art, densification is formed between internal metal powder and ceramic powder due to the high temperature effect, so that a product is subjected to pore shrinkage and crystallization transformation, but when sintering is carried out, a pressed green body is always directly placed into a sintering furnace, and when pore shrinkage and crystallization transformation occur, the green body is subjected to a certain amount of shrinkage, but at the moment, no external force acts, so that the inside of the green body is not uniform enough when densification is carried out, partial cavities are formed due to insufficient local densification degree, and the production quality of a final filter element is affected.
Therefore, the invention provides a metal powder sintering filter element forming process and a metal powder sintering filter element forming device.
Disclosure of Invention
In order to make up the defects in the prior art, densification is formed between internal metal powder and ceramic powder due to the high temperature effect, so that a product is subjected to pore shrinkage and crystallization transformation, but when sintering, a pressed green body is directly placed into a sintering furnace, and when pore shrinkage and crystallization transformation occur, the green body is subjected to a certain amount of shrinkage, but no external force acts at this time, so that the inside of the green body is not uniform enough when densification is performed, partial cavities are formed due to insufficient partial densification degree, and the production quality of a final filter element is affected.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a metal powder sintering filter element forming process, which comprises the following steps:
s1: raw material preparation: screening, cleaning, drying and the like are carried out on the metal powder and the ceramic powder, so that the quality and purity of raw materials are ensured;
s2: mixing and pressing: mixing metal powder and ceramic powder according to a certain proportion, adding a certain amount of organic adhesive and solvent to prepare a mixture, and pressing the mixture into a die set to form a ring shape;
s3: sintering: the die set is placed in a sintering furnace, and the temperature and time are controlled to ensure the sintering degree and the physical properties of the filter element.
A metal powder sintering filter element forming device, the sintering furnace comprises a placing block; the top end of the placing block is fixedly connected with a furnace body, the furnace body is provided with a group of placing cavities through a partition plate, and both sides of the placing cavities are in an opening state; the two sides of the furnace body are connected with an inverted U-shaped cover plate in a sliding manner; the two sides of the placing block are fixedly connected with first hydraulic cylinders, and the first hydraulic cylinders are fixedly connected with the inverted U-shaped cover plate through hydraulic rods; the position of the placement block relative to the placement cavity is provided with a first chute; the first sliding groove is connected with a first sliding plate in a sliding way; the side wall of the first sliding chute is fixedly connected with a second hydraulic cylinder, and a hydraulic rod on the second hydraulic cylinder is fixedly connected with the bottom end of the first sliding plate; the first sliding plate is rotationally connected with symmetrically distributed rotating blocks, and the top ends of the rotating blocks are provided with placing grooves; a die set is arranged in the placing groove; the pair of rotating blocks rotate through the rotating piece; a vibration component is arranged in the placing cavity and is used for vibrating the die set; two groups of sealing grooves which are symmetrically distributed are formed in the first sliding plate; a sealing block is fixedly connected to the bottom end of the inverted U-shaped cover plate at the position corresponding to the sealing groove; in the prior art, densification is formed between internal metal powder and ceramic powder due to the high temperature effect, so that a product is subjected to pore shrinkage and crystallization transformation, but when sintering is carried out, a pressed green body is always directly placed into a sintering furnace, and when pore shrinkage and crystallization transformation occur, the green body is subjected to certain shrinkage, but when no external force acts at this time, the inside of the green body is subjected to densification, partial cavities are not formed enough due to the insufficient local densification degree, and the production quality of a final filter element is affected; therefore, when the invention works, the die set with the green embryo is firstly put into the rotating block to carry out fixing operation, at the moment, the inverted U-shaped cover plate is opened through the first hydraulic cylinder, then the first sliding plate is pushed through the second hydraulic cylinder, the die set to be sintered is put into the furnace body, then the inverted U-shaped cover plate is closed, meanwhile, the rotating piece is started, the rotating block is rotated, the die set can be ensured to be heated uniformly in the furnace body, and meanwhile, the vibration assembly is utilized to carry out densification treatment on the green embryo in the die set due to high temperature, at the moment, the vibration assembly can enable the material in the green embryo to carry out certain amount of shrinkage treatment, so that the generation of local hollows is avoided, the uniform densification effect of the whole body in densification is ensured, and the manufacturing quality of the filter element in the later stage is further ensured.
Preferably, the die set comprises a cylinder; the cylinder is provided with an annular groove, and the top end of the annular groove is in an opening state; a thread groove is formed in the middle of the column body; the thread groove is internally and in threaded connection with a second threaded rod, and the outer side wall of the second threaded rod is provided with a group of second sliding grooves; an L-shaped rod is fixedly connected to the top end of the second chute through a spring, and an annular plate is fixedly connected to the bottom end of the L-shaped rod; the annular plate is connected in the annular groove in a sealing sliding manner; the outer side wall of the bottom end of the column body is provided with a first arc-shaped groove; the outer side wall of the rotating block is in threaded connection with a first threaded rod, and the end part of the first threaded rod extends into the placing groove; during operation, the inside embryo of mould group is in advance getting into the ring channel of cylinder, carry out preliminary suppression through suppression device and get suitable state, when sealed to the mould group, this moment through second threaded rod screw thread in the screw channel, rotatory second threaded rod can drive the annular slab and advance down the cover in the ring channel, simultaneously when annular slab and embryo top contact each other, continue to push down the second threaded rod this moment, compress the last spring of L shape pole, and then can utilize the annular slab to exert the pressure value to the embryo, in embryo high temperature densification processing, the pore shrinkage of embryo can further be guaranteed to the downforce on the annular slab this moment, simultaneously combine each other with vibration assembly, can further guarantee the sintering quality of embryo, guarantee the even densification processing of embryo, simultaneously the second threaded rod can be according to the compression volume to the last spring of L shape pole, the size of control pressing force, simultaneously put into the standing groove in the time, can be blocked into first arc inslot by first threaded rod tip, and then can guarantee to rotate through first drive the threaded rod tip, can fix the cylinder through first drive the fast arc body simultaneously, can fix the arc fast.
Preferably, the rotating member includes a first motor and a first rotating shaft; the bottom end of the middle part of the first sliding plate is fixedly connected with a first motor through a connecting rod; the output end of the first motor is provided with a first rotating shaft; a first sprocket is fixedly connected to the first rotating shaft; the bottom end of the rotating block is fixedly connected with a second rotating shaft, and the bottom end of the second rotating shaft extends out of the first sliding plate and is fixedly connected with a second sprocket; the pair of the second chain wheels and the first chain wheels are driven by a chain; during operation, because a pair of rotating blocks are arranged, the die set on one rotating block enters the sintering furnace, namely, the die set which completes sintering is moved from the furnace body, in the furnace body, the die set can be subjected to cooling treatment firstly, which is not described in the prior art, but after the die set is moved out of the furnace body, the temperature is still far higher than the outdoor temperature, so that the die set is inconvenient to take down immediately, the next die set is set into a mode of one group of feeding in order not to delay sintering, the production efficiency is improved, meanwhile, the rotating piece is arranged, the rotating piece can drive the rotating block to rotate, the die set which is positioned in the furnace body can rotate at a constant speed, the heating effect is ensured, the die set which is moved out by sintering can also rotate, the rotation is beneficial to air flow, and the die set is convenient to cool to the room temperature rapidly.
Preferably, the vibration assembly includes a third rotation shaft; the top end of the placing cavity is rotatably connected with a pair of third rotating shafts; a group of hinging rods are hinged on the outer side wall of the third rotating shaft through torsion springs; the end part of the hinging rod is fixedly connected with a vibration ball; during operation, when the module group is located the furnace body, the third axis of rotation can rotate this moment, and then drives the vibrations ball and upwards perk under the effect of centrifugal force, and then collide the cylinder external surface, and then produce the vibration force, utilize the vibration force to accomplish the homogenization densification operation of embryo, set up simultaneously and lift up under the effect of centrifugal force and collide the processing, can not influence the business turn over of mould group, also can not produce rigid collision simultaneously, be located the temperature resistance that places the part in the chamber simultaneously and all be higher than the temperature value of required sintering.
Preferably, the vibration assembly further comprises a first through groove; a first through groove is formed in the middle of the placing cavity; the first through groove is rotationally connected with a rotating plate; the center of the bottom end of the rotating plate is fixedly connected with a first gear through a fixed column; a second gear is fixedly connected to the third rotating shaft; the first gear and the second gear are meshed with each other; the first gear rotates through the rotating unit; when the vibration ball and cylinder collision vibration processing device works, the first gear is meshed with the second gear when rotating, and then the second gear is driven to rotate, the second gear rotates to drive the third rotating shaft to rotate, and then the vibration ball and cylinder are driven to collide vibration processing.
Preferably, the rotating unit includes a lower pressing plate; the middle part of the top end of the rotating plate is fixedly connected with a lower pressing plate through a spring; the bottom end of the lower pressing plate is fixedly connected with a pair of lower pressing rods, penetrates through the rotating plate and the first gear and stretches into the placing cavity; the opposite surfaces of the pair of the pressing rods are provided with first grooves; a first clamping block is fixedly connected in the first groove through a spring; the end parts of the first clamping blocks are arc-shaped, and two sides of the first clamping blocks are plane; a pair of second arc grooves are formed in the outer side wall of the column body, a first inclined plane is formed in the top end of each second arc groove, and two side walls of each second arc groove are arranged in a plane; during operation, when the mould group gets into the furnace body and places the intracavity, the reverse U-shaped apron moves down this moment, cover the both sides opening of placing the chamber, the clamp plate can be pushed down to the reverse U-shaped apron this moment, the clamp plate moves down and can drive down the clamp lever and move down, down the clamp lever moves down and can drive first screens piece and cylinder top and contact extrusion to each other earlier, let first screens piece impress in the first recess, then let first screens piece and second arc wall be in same high value, then when the cylinder rotates, first screens piece can block into the second arc wall this moment, because of the plane lateral wall contact of first screens piece and second arc wall, consequently, the rotation of cylinder can drive down the clamp lever and rotate, and then can drive first gear rotation, accomplish subsequent collision vibration operation, utilize the turning force of cylinder to accomplish above-mentioned operation, simultaneously after sintering technique, down the clamp plate can move up under the effect of spring force, and then let first screens piece move up, because of first screens piece is the arc setting, therefore first screens piece can move at last first screens piece and second arc wall top and first arc wall, then the spacing operation of cylinder can be carried out to the mutual extrusion, the spacing operation of first cylinder is convenient, the cylinder is moved down, the cylinder is moved, the spacing is moved down.
Preferably, the first sliding plate is provided with two groups of second grooves which are symmetrically distributed; the second grooves are square; a fourth rotating shaft is rotatably connected in the bottom of the second groove; a group of fan blades are fixedly connected to the outer side wall of the fourth rotating shaft; the bottom end of the fourth rotating shaft extends out of the first sliding plate and is fixedly connected with a fourth gear; a third gear is arranged on the second rotating shaft; the third gear and a group of fourth gears are respectively meshed with each other; during operation, when the second axis of rotation rotates, can drive the fourth axis of rotation through the meshing of third gear and fourth gear and rotate, and then can drive the mould group that is located the external world and need cool off and carry out the operation of blowing, further accelerate the cooling operation.
Preferably, a pair of symmetrically distributed U-shaped cutting cavities are formed in the first sliding plate, and the U-shaped cutting cavities cut off the second grooves; the side wall of the U-shaped truncated cavity is fixedly connected with a truncated plate through a spring; the cutoff plate is provided with a pair of first through holes; the side wall of the cutting plate is fixedly connected with a push rod, and the push rod penetrates through the outside of the first sliding plate; during operation, can shelter from by the clipper in to the second recess that gets into the group of dies position department, consequently lie in the second recess of furnace body this moment, its wind-force can not produce the influence, as long as the group of dies after the sintering removes, can be because of push rod and first spout lateral wall extrusion each other, just can let the clipper open the second recess, carries out the processing of quick heat dissipation to room temperature.
Preferably, the third gear is rotatably connected to the bottom end of the first slide plate; a pair of half crescent grooves which are symmetrically distributed about the center of the third gear are formed in the inner annular wall of the third gear, and the half crescent grooves on the pair of third gears are symmetrically arranged about the center point of the first sliding plate; a pair of third grooves are formed in the shaft wall, located on the inner annular wall of the third gear, of the second rotating shaft; the bottom of the third groove is fixedly connected with a second clamping block through a spring; during operation, in order to ensure that the fan blades of the second groove positioned in the furnace body do not rotate, and the fan blades of the second groove positioned outside the furnace body rotate, a pair of half crescent grooves which are symmetrically distributed about the center of the third gear are formed in the inner annular wall of the third gear, the half crescent grooves on the pair of third gears are centrally symmetrical about the center point of the first sliding plate, at the moment, when the second rotating shaft rotates, the second clamping block is pushed outwards to enter the half crescent grooves due to the centrifugal effect, and when the arc-shaped movement of the half crescent grooves is carried out, the third gear does not rotate, but moves against the arc-shaped movement of the half crescent grooves, the third gear is blocked by the plane of the half crescent grooves, and then the third gear rotates, so that the third gear on one side rotates, the third gear on the other side does not rotate, and the influence of wind power on sintering quality in the furnace body is avoided.
The beneficial effects of the invention are as follows:
1. according to the metal powder sintering filter element forming process and device, the inverted U-shaped cover plate is opened through the first hydraulic cylinder, then the first sliding plate is pushed through the second hydraulic cylinder, the die set to be sintered is placed into the furnace body, then the inverted U-shaped cover plate is closed, meanwhile, the rotating piece is started to rotate, the die set can be guaranteed to be heated uniformly in the furnace body, meanwhile, the vibration assembly is utilized to carry out densification treatment on the green embryo in the die set at high temperature, at the moment, the vibration assembly can enable the material in the green embryo to be contracted by a certain amount, local cavities are prevented from being generated, the whole densification uniform and compact effect is guaranteed, and the manufacturing quality of the filter element in the later period is guaranteed.
2. According to the metal powder sintering filter element forming process and the metal powder sintering filter element forming device, when the metal powder sintering filter element forming process and the metal powder sintering filter element forming device rotate, in order to ensure that the fan blades of the second groove in the furnace body do not rotate, but the fan blades of the second groove in the furnace body do not rotate, a pair of half crescent grooves which are distributed symmetrically about the center of the third gear are formed in the inner annular wall of the third gear, the half crescent grooves on the pair of third gears are symmetrical about the center point of the first sliding plate, at the moment, when the second rotating shaft rotates, the second clamping block is pushed outwards to enter the half crescent grooves due to the centrifugal effect, when the second rotating shaft moves along the arc of the half crescent grooves, the third gear does not rotate, but moves against the arc of the half crescent grooves and is blocked by the plane of the half crescent grooves, so that the third gear rotates, the third gear on one side does not rotate, and the third gear on the other side does not rotate, so that the wind force does not need to influence the sintering quality in the furnace body.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial perspective view of the present invention;
FIG. 3 is a partial side view of the present invention;
FIG. 4 is a partial cross-sectional view of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is an enlarged view of a portion of FIG. 4 at B;
FIG. 7 is a cross-sectional view of the first slide plate;
FIG. 8 is an enlarged view of a portion of FIG. 7 at C;
FIG. 9 is a top view of the first slide;
FIG. 10 is a bottom view of the first sled;
FIG. 11 is a partial view of the first slide plate;
FIG. 12 is an enlarged view of a portion of FIG. 11 at D;
FIG. 13 is an exploded view of the die set;
in the figure: 1. placing a block; 11. a furnace body; 12. an inverted U-shaped cover plate; 13. a first hydraulic cylinder; 14. a partition plate; 15. a placement cavity; 16. a first chute; 17. a first slide plate; 18. a rotating block; 19. a placement groove; 191. a second hydraulic cylinder; 2. a die set; 21. a column; 22. an annular groove; 23. a thread groove; 24. a first threaded rod; 25. a first arc-shaped groove; 26. a second threaded rod; 27. a second chute; 28. an L-shaped rod; 29. an annular plate; 3. a first motor; 31. a first rotation shaft; 32. a first sprocket; 33. a second sprocket; 34. a chain; 35. a second rotation shaft; 4. a third rotation shaft; 41. a hinge rod; 42. a vibrating ball; 43. a first through groove; 431. a rotating plate; 44. a first gear; 45. a second gear; 46. a lower pressing plate; 47. pressing down a rod; 48. a first groove; 49. a first clamping block; 491. a second arc-shaped groove; 5. a second groove; 51. a fourth rotation shaft; 52. a fan blade; 53. a third gear; 54. a fourth gear; 55. a U-shaped cutoff cavity; 56. a cutoff plate; 57. a first through hole; 58. a push rod; 6. half crescent groove; 61. a third groove; 62. and the second clamping block.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
The embodiment of the invention discloses a metal powder sintering filter element forming process, which comprises the following steps:
s1: raw material preparation: screening, cleaning, drying and the like are carried out on the metal powder and the ceramic powder, so that the quality and purity of raw materials are ensured;
s2: mixing and pressing: mixing metal powder and ceramic powder according to a certain proportion, adding a certain amount of organic adhesive and solvent to prepare a mixture, and pressing the mixture into a die set 2 to form a ring shape;
s3: sintering: the die set 2 is placed in a sintering furnace, and the temperature and time are controlled to ensure the sintering degree and the physical properties of the filter element.
As shown in fig. 1 to 13, a metal powder sintering filter element forming device, the sintering furnace comprises a placing block 1; the top end of the placement block 1 is fixedly connected with a furnace body 11, the furnace body 11 is provided with a group of placement cavities 15 through a partition plate 14, and both sides of the placement cavities 15 are in an opening state; two sides of the furnace body 11 are connected with inverted U-shaped cover plates 12 in a sliding manner; the two sides of the placing block 1 are fixedly connected with first hydraulic cylinders 13, and the first hydraulic cylinders 13 are fixedly connected with the inverted U-shaped cover plate 12 through hydraulic rods; a first chute 16 is formed at the position of the placement block 1 relative to the placement cavity 15; a first sliding plate 17 is connected with the first sliding groove 16 in a sliding way; a second hydraulic cylinder 191 is fixedly connected to the side wall of the first chute 16, and a hydraulic rod on the second hydraulic cylinder 191 and the bottom end of the first sliding plate 17 are fixedly connected with each other; the first sliding plate 17 is rotatably connected with symmetrically distributed rotating blocks 18, and the top end of each rotating block 18 is provided with a placing groove 19; the placing groove 19 is internally provided with a die set 2; a pair of the rotating blocks 18 are rotated by a rotating member; a vibration component is arranged in the placing cavity 15 and is used for performing vibration treatment on the die set 2; two groups of sealing grooves which are symmetrically distributed are formed in the first sliding plate 17; a sealing block is fixedly connected to the bottom end of the inverted U-shaped cover plate 12 at the position corresponding to the sealing groove; in the prior art, densification is formed between internal metal powder and ceramic powder due to the high temperature effect, so that a product is subjected to pore shrinkage and crystallization transformation, but when sintering is carried out, a pressed green body is always directly placed into a sintering furnace, and when pore shrinkage and crystallization transformation occur, the green body is subjected to certain shrinkage, but when no external force acts at this time, the inside of the green body is subjected to densification, partial cavities are not formed enough due to the insufficient local densification degree, and the production quality of a final filter element is affected; therefore, when the invention works, the die set 2 with the green embryo is firstly put into the rotating block 18 for fixing operation, at the moment, the inverted U-shaped cover plate 12 is opened through the first hydraulic cylinder 13, then the first sliding plate 17 is pushed through the second hydraulic cylinder 191, the die set 2 needing sintering is put into the furnace body 11, then the inverted U-shaped cover plate 12 is closed, meanwhile, the rotating piece is started, the rotating block 18 is rotated, the die set 2 can be ensured to be heated uniformly in the furnace body 11, meanwhile, the vibration component is utilized, the green embryo in the die set 2 is subjected to densification treatment due to high temperature, at the moment, the vibration component can enable the material in the green embryo to be subjected to certain amount of shrinkage treatment, so that local hollowness is avoided, the uniform densification effect of the whole body in densification is ensured, and the manufacturing quality of a filter element in the later stage is further ensured.
The die set 2 includes a cylinder 21; the column 21 is provided with an annular groove 22, and the top end of the annular groove 22 is in an opening state; a thread groove 23 is formed in the middle of the column body 21; the thread groove 23 is internally and threadedly connected with a second threaded rod 26, and a group of second sliding grooves 27 are formed in the outer side wall of the second threaded rod 26; an L-shaped rod 28 is fixedly connected to the top end of the second chute 27 through a spring, and an annular plate 29 is fixedly connected to the bottom end of the L-shaped rod 28; the annular plate 29 is in sealing sliding connection in the annular groove 22; a first arc-shaped groove 25 is formed in the outer side wall of the bottom end of the column body 21; the outer side wall of the rotating block 18 is in threaded connection with a first threaded rod 24, and the end part of the first threaded rod 24 extends into the placing groove 19; during operation, the inside embryo of group 2 of moulds is advanced and gets into in the ring channel 22 of cylinder 21, carry out preliminary suppression through pressing device and get suitable state, when sealed to group 2 of moulds, this moment through second threaded rod 26 screw thread in thread groove 23, rotatory second threaded rod 26 can drive annular plate 29 and advance down the cover in ring channel 22, simultaneously when annular plate 29 and embryo top contact each other, continue to push down second threaded rod 26 this moment, compress the last spring of L shape pole 28, and then can utilize annular plate 29 to apply the pressure value to the embryo, in the high temperature densification processing thing of embryo, the downforce on the annular plate 29 can further guarantee the pore contraction of embryo, simultaneously combine each other with the vibrations subassembly, can further guarantee the sintering quality of embryo, guarantee the even densification processing of embryo, simultaneously second threaded rod 26 can be according to the compression volume to the last spring of L shape pole 28, the size of control the pressing force, simultaneously put into place in groove 19 by first 24 tip card into first threaded rod 25, and then can rotate the threaded rod 21 in order to guarantee that the first threaded rod 25 rotates at the same time, and can rotate the first arc groove 21 is fast, and then the cylinder 21 can be rotated at the same time, the arc groove is fixed to the arc groove is guaranteed to the cylinder 21.
The rotating member comprises a first motor 3 and a first rotating shaft 31; the bottom end of the middle part of the first sliding plate 17 is fixedly connected with a first motor 3 through a connecting rod; the output end of the first motor 3 is provided with a first rotating shaft 31; a first sprocket 32 is fixedly connected to the first rotating shaft 31; the bottom end of the rotating block 18 is fixedly connected with a second rotating shaft 35, and the bottom end of the second rotating shaft 35 extends out of the first sliding plate 17 and is fixedly connected with a second sprocket 33; a pair of the second sprocket 33 and the first sprocket 32 are driven by a chain 34; during operation, the mold sets 2 on one rotating block 18 enter the sintering furnace, that is, the mold sets 2 after sintering are moved from the furnace body 11, and in the furnace body 11, the mold sets 2 are subjected to cooling treatment, which is not described in the prior art, but after the mold sets are moved out of the furnace body 11, the temperature is still far higher than the outdoor temperature, so that the mold sets are inconvenient to take down immediately, so that the next mold set 2 is set into a set of mode of entering in order to not delay sintering, the production efficiency is improved, meanwhile, the rotating piece is provided, the rotating piece can drive the rotating block 18 to rotate, the mold sets 2 positioned in the furnace body 11 can be rotated at a uniform speed, the heating effect is ensured, the mold sets 2 after sintering are moved out can be rotated, the rotation is helpful for air flow, and the rapid cooling to the room temperature is convenient.
The vibration assembly comprises a third rotating shaft 4; the top end of the placing cavity 15 is rotatably connected with a pair of third rotating shafts 4; a group of hinge rods 41 are hinged on the outer side wall of the third rotating shaft 4 through torsion springs; a vibration ball 42 is fixedly connected to the end part of the hinging rod 41; during operation, when the module group is located the furnace body 11, the third axis of rotation 4 can rotate this moment, and then drives vibrations ball 42 and upwards perk under the effect of centrifugal force, and then collide the cylinder 21 surface, and then produce vibration force, utilize vibration force to accomplish the homogenization densification operation of embryo, set up simultaneously and lift up under the effect of centrifugal force and collide the processing, can not influence the business turn over of mould group 2, also can not produce rigid collision simultaneously, be located the temperature resistance that places the part in the chamber 15 simultaneously and all be higher than the temperature value of required sintering.
The vibration assembly further comprises a first through slot 43; a first through groove 43 is formed in the middle of the placing cavity 15; a rotating plate 431 is rotatably connected to the first through groove 43; a first gear 44 is fixedly connected to the center of the bottom end of the rotating plate 431 through a fixed column; a second gear 45 is fixedly connected to the third rotating shaft 4; the first gear 44 and the second gear 45 are engaged with each other; the first gear 44 is rotated by a rotation unit; when the vibration ball driving device works, the first gear 44 is meshed with the second gear 45 when the first gear 44 rotates, so that the second gear 45 is driven to rotate, the second gear 45 rotates to drive the third rotating shaft 4 to rotate, and then the vibration ball 42 and the column 21 are driven to collide and vibrate.
The rotating unit includes a lower platen 46; the middle part of the top end of the rotating plate 431 is fixedly connected with a lower pressing plate 46 through a spring; a pair of pressing rods 47 are fixedly connected to the bottom end of the pressing plate 46, and the bottom ends of the pressing rods 47 penetrate through the rotating plate 431 and the first gear 44 and extend into the placing cavity 15; a pair of the pressing rods 47 are provided with first grooves 48 on opposite surfaces thereof; a first clamping block 49 is fixedly connected in the first groove 48 through a spring; the end part of the first clamping block 49 is arc-shaped, and two sides of the first clamping block 49 are plane; a pair of second arc grooves 491 are formed in the outer side wall of the cylinder 21, a first inclined plane is formed in the top end of each second arc groove 491, and two side walls of each second arc groove 491 are arranged in a plane; during operation, when the die set 2 enters the furnace body 11 and is placed in the cavity 15, the inverted U-shaped cover plate 12 moves downwards at the moment, two side openings of the placed cavity 15 are covered, the inverted U-shaped cover plate 12 can downwards press the pressing plate 46 at the moment, the lower pressing plate 46 moves downwards to drive the lower pressing rod 47 to move downwards, the lower pressing rod 47 can drive the first clamping block 49 and the top end of the cylinder 21 to contact and extrude each other firstly, the first clamping block 49 is pressed into the first groove 48, then the first clamping block 49 and the second arc groove 491 are located at the same height value, then when the cylinder 21 rotates, at the moment, the first clamping block 49 can be clamped into the second arc groove 491, the first clamping block 49 and the plane side wall of the second arc groove 491 are contacted, the rotation of the cylinder 21 can drive the lower pressing rod 47 to rotate, and then the first gear 44 to complete subsequent collision vibration operation, the operation is completed by utilizing the rotation force of the cylinder 21, at the moment, the inverted U-shaped cover plate 49 can move downwards under the spring, then the first clamping block 49 and the second arc groove 491 are located at the moment, the first clamping block 49 is separated from the first arc groove 48, the first arc groove is convenient to move, and the first arc groove is formed, the first compression operation is completed, and the first compression groove is convenient is released, the first compression groove is arranged at the top end of the cylinder 21 is located at the top, and the top end is convenient, and the top is convenient to move and the top is left, and has the top is convenient to be convenient to move and is convenient to and easy to move and has the top and is convenient.
Two groups of second grooves 5 which are symmetrically distributed are arranged on the first sliding plate 17; a group of second grooves 5 are square; a fourth rotating shaft 51 is rotatably connected in the bottom of the second groove 5; a group of fan blades 52 are fixedly connected to the outer side wall of the fourth rotating shaft 51; the bottom end of the fourth rotating shaft 51 extends out of the first sliding plate 17 and is fixedly connected with a fourth gear 54; the second rotating shaft 35 is provided with a third gear 53; the third gear 53 and the set of fourth gears 54 are respectively engaged with each other; during operation, when the second rotating shaft 35 rotates, the fourth rotating shaft 51 is driven to rotate through the engagement of the third gear 53 and the fourth gear 54, so that the die set 2 which is positioned outside and needs to be cooled can be driven to perform blowing operation, and the cooling operation is further accelerated.
A pair of symmetrically distributed U-shaped cutting cavities 55 are formed in the first sliding plate 17, and the U-shaped cutting cavities 55 cut off the second grooves 5; the side wall of the U-shaped cutoff cavity 55 is fixedly connected with a cutoff plate 56 through a spring; the cutoff plate 56 is provided with a pair of first through holes 57; a push rod 58 is fixedly connected to the side wall of the cutoff plate 56, and the push rod 58 penetrates through the outside of the first sliding plate 17; during operation, the second groove 5 at the position of the die set 2 is blocked by the cutting plate 56, so that the second groove 5 at the furnace body 11 is not affected by wind power, and the cutting plate 56 can open the second groove 5 to rapidly dissipate heat to room temperature only when the sintered die set 2 moves and the push rod 58 and the side wall of the first chute 16 are mutually extruded.
The third gear 53 is rotatably connected to the bottom end of the first sliding plate 17; a pair of half crescent grooves 6 which are symmetrically distributed about the center of the third gear 53 are formed in the inner annular wall of the third gear 53, and the half crescent grooves 6 on the pair of third gears 53 are symmetrically arranged about the center point of the first sliding plate 17; a pair of third grooves 61 are formed in the shaft wall of the second rotating shaft 35, which is positioned on the inner annular wall of the third gear 53; the bottom of the third groove 61 is fixedly connected with a second clamping block 62 through a spring; during operation, in order to ensure that the fan blades 52 of the second groove 5 positioned in the furnace body 11 do not rotate, and the fan blades 52 of the second groove 5 positioned outside the furnace body 11 rotate, a pair of half crescent grooves 6 which are distributed symmetrically about the center of the circle of the third gear 53 are formed on the inner annular wall of the third gear 53, the half crescent grooves 6 on the pair of third gears 53 are symmetrical about the center point of the first sliding plate 17, at the moment, when the second rotating shaft 35 rotates, the second clamping block 62 is pushed outwards into the half crescent grooves 6 due to centrifugal action, and when the second clamping block moves along the arc of the half crescent grooves 6, the third gears 53 do not rotate, but move against the arc of the half crescent grooves 6, are blocked by the plane of the half crescent grooves 6, and then the third gears 53 rotate, so that the third gears 53 on one side can rotate, the third gears 53 on the other side do not rotate, and the furnace body does not need to influence sintering quality in the furnace body.
Working principle: firstly, placing a die set 2 with a blank into a rotating block 18 for fixing operation, opening an inverted U-shaped cover plate 12 through a first hydraulic cylinder 13 at the moment, pushing a first sliding plate 17 through a second hydraulic cylinder 191, placing the die set 2 to be sintered into a furnace body 11, closing the inverted U-shaped cover plate 12, starting a rotating piece at the same time, enabling the rotating block 18 to rotate, ensuring that the die set 2 is heated uniformly in the furnace body 11, and simultaneously, utilizing a vibration assembly to compact the blank in the die set 2 at a high temperature, wherein the vibration assembly can enable the material in the blank to shrink a certain amount, so that local hollows are avoided, the uniform densification effect of the whole is ensured, and the manufacturing quality of a later filter element is ensured; the blank inside the die set 2 firstly enters the annular groove 22 of the cylinder 21, is preliminarily pressed to a proper state through a pressing device, when the die set 2 is sealed, the second threaded rod 26 is threaded in the threaded groove 23 at the moment, the second threaded rod 26 is rotated to drive the annular plate 29 to press downwards to cover in the annular groove 22, meanwhile, when the annular plate 29 and the top end of the blank are contacted with each other, the second threaded rod 26 is continuously pressed downwards at the moment, the spring on the L-shaped rod 28 is compressed, the annular plate 29 can be used for applying a pressure value to the blank, the blank is subjected to high-temperature densification treatment, the lower pressure on the annular plate 29 can be further used for ensuring the shrinkage of the blank hole, meanwhile, the vibration assembly is combined with each other, the sintering quality of the blank can be further ensured, the uniform densification treatment of the blank is ensured, meanwhile, the second threaded rod 26 can control the pressing force according to the compression amount of the spring on the L-shaped rod 28, the blank can be clamped into the first arc groove 25 by the end of the first threaded rod 24 when the cylinder 21 is placed into the placing groove 19, the first arc groove 25 can be further ensured, and the first arc groove 21 can be rotated, and the first arc groove 21 can be further designed to be rotated conveniently, and the first arc groove 21 can be rotated conveniently; when the die set 2 enters the placing cavity 15 in the furnace body 11, the inverted U-shaped cover plate 12 moves downwards to cover openings on two sides of the placing cavity 15, the inverted U-shaped cover plate 12 can downwards press the pressing plate 46, the lower pressing plate 46 moves downwards to drive the lower pressing rod 47 to move downwards, the lower pressing rod 47 moves downwards to drive the first clamping block 49 and the top end of the cylinder 21 to contact and press each other firstly, the first clamping block 49 is pressed into the first groove 48, then the first clamping block 49 and the second arc-shaped groove 491 are positioned at the same height value, and then when the cylinder 21 rotates, the first clamping block 49 is clamped into the second arc-shaped groove 491, and the first clamping block 49 and the plane side wall of the second arc-shaped groove 491 are contacted, so that the rotation of the cylinder 21 can drive the lower pressing rod 47 to rotate, further drive the first gear 44 to complete subsequent collision vibration operation, the lower pressing plate 46 moves upwards under the action of a spring force, and then the first clamping block 49 moves upwards, and the first clamping block 49 moves upwards to the first clamping block 49 and the top end of the first arc-shaped groove 49 is separated from the first arc-shaped groove 47, and the first arc-shaped groove 49 is pressed into the first arc-shaped groove 48, and the first arc-shaped groove is convenient to move the first arc-shaped groove 48 after the first clamping block is moved; during rotation, in order to ensure that the fan blades 52 of the second groove 5 positioned in the furnace body 11 do not rotate, and the fan blades 52 of the second groove 5 positioned outside the furnace body 11 rotate, a pair of half crescent grooves 6 which are distributed symmetrically about the center of the circle of the third gear 53 are formed on the inner annular wall of the third gear 53, the half crescent grooves 6 on the pair of third gears 53 are symmetrical about the center point of the first sliding plate 17, at the moment, when the second rotation shaft 35 rotates, the second clamping block 62 is pushed outwards into the half crescent grooves 6 due to centrifugal action, and when the arc-shaped gear moves along the half crescent grooves 6, the third gear 53 does not rotate, but moves against the arc-shaped gear of the half crescent grooves 6, can be blocked by the plane of the half crescent grooves 6, further the third gear 53 rotates, further the third gear 53 on one side can rotate, the third gear 53 on the other side does not rotate, and the influence of wind force on sintering quality in the furnace body 11 is not needed.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A metal powder sintering filter core forming device is characterized in that: the steps of the molding device are as follows:
s1: raw material preparation: screening, cleaning, drying and the like are carried out on the metal powder and the ceramic powder, so that the quality and purity of raw materials are ensured;
s2: mixing and pressing: mixing metal powder and ceramic powder according to a certain proportion, adding a certain amount of organic adhesive and solvent to prepare a mixture, and pressing the mixture into a die set (2) to form a ring shape;
s3: sintering: placing the die set (2) in a sintering furnace, and controlling the temperature and time to ensure the sintering degree and physical properties of the filter element;
the sintering furnace comprises a placement block (1); the top end of the placing block (1) is fixedly connected with a furnace body (11), the furnace body (11) is provided with a group of placing cavities (15) through a partition plate (14), and both sides of the placing cavities (15) are in an opening state; two sides of the furnace body (11) are connected with an inverted U-shaped cover plate (12) in a sliding manner; the two sides of the placing block (1) are fixedly connected with first hydraulic cylinders (13), and the first hydraulic cylinders (13) are fixedly connected with each other through hydraulic rods and inverted U-shaped cover plates (12); a first chute (16) is formed in the position of the placement block (1) relative to the placement cavity (15); a first sliding plate (17) is connected in a sliding way in the first sliding groove (16); a second hydraulic cylinder (191) is fixedly connected to the side wall of the first sliding groove (16), and a hydraulic rod on the second hydraulic cylinder (191) and the bottom end of the first sliding plate (17) are fixedly connected with each other; the first sliding plate (17) is rotationally connected with symmetrically distributed rotating blocks (18), and a placing groove (19) is formed in the top end of each rotating block (18); a die set (2) is arranged in the placing groove (19); a pair of the rotating blocks (18) are rotated by a rotating member; a vibration component is arranged in the placing cavity (15), and the vibration component vibrates the die set (2); two groups of sealing grooves which are symmetrically distributed are formed in the first sliding plate (17); a sealing block is fixedly connected to the bottom end of the inverted U-shaped cover plate (12) at the position corresponding to the sealing groove;
the die set (2) comprises a cylinder (21); the cylinder (21) is provided with an annular groove (22), and the top end of the annular groove (22) is in an opening state; a thread groove (23) is formed in the middle of the column body (21); the thread groove (23) is internally connected with a second threaded rod (26) in a threaded manner, and a group of second sliding grooves (27) are formed in the outer side wall of the second threaded rod (26); an L-shaped rod (28) is fixedly connected to the top end of the second chute (27) through a spring, and an annular plate (29) is fixedly connected to the bottom end of the L-shaped rod (28); the annular plate (29) is connected in the annular groove (22) in a sealing sliding manner; a first arc-shaped groove (25) is formed in the outer side wall of the bottom end of the column body (21); the outer side wall of the rotating block (18) is in threaded connection with a first threaded rod (24), and the end part of the first threaded rod (24) extends into the placing groove (19);
the vibration assembly comprises a third rotating shaft (4); the top end of the placing cavity (15) is rotatably connected with a pair of third rotating shafts (4); a group of hinging rods (41) are hinged on the outer side wall of the third rotating shaft (4) through torsion springs; and a vibration ball (42) is fixedly connected to the end part of the hinging rod (41).
2. The metal powder sintered filter cartridge forming device of claim 1, wherein: the rotating member comprises a first motor (3) and a first rotating shaft (31); the bottom end of the middle part of the first sliding plate (17) is fixedly connected with a first motor (3) through a connecting rod; the output end of the first motor (3) is provided with a first rotating shaft (31); a first sprocket (32) is fixedly connected to the first rotating shaft (31); the bottom end of the rotating block (18) is fixedly connected with a second rotating shaft (35), and the bottom end of the second rotating shaft (35) extends out of the first sliding plate (17) and is fixedly connected with a second sprocket (33); a pair of the second sprocket (33) and the first sprocket (32) are driven by a chain (34).
3. A metal powder sintered cartridge molding apparatus as claimed in claim 2, wherein: the vibration assembly further comprises a first through slot (43); a first through groove (43) is formed in the middle of the placing cavity (15); a rotating plate (431) is rotatably connected to the first through groove (43); a first gear (44) is fixedly connected to the center of the bottom end of the rotating plate (431) through a fixed column; a second gear (45) is fixedly connected to the third rotating shaft (4); the first gear (44) and the second gear (45) are meshed with each other; the first gear (44) is rotated by a rotation unit.
4. A metal powder sintered cartridge molding apparatus as claimed in claim 3, wherein: the rotating unit comprises a lower pressing plate (46); the middle part of the top end of the rotating plate (431) is fixedly connected with a lower pressing plate (46) through a spring; a pair of pressing rods (47) are fixedly connected to the bottom end of the pressing plate (46), and the bottom ends of the pressing rods (47) penetrate through the rotating plate (431) and the first gear (44) and extend into the placing cavity (15); the opposite surfaces of the pair of the pressing rods (47) are provided with first grooves (48); a first clamping block (49) is fixedly connected in the first groove (48) through a spring; the end part of the first clamping block (49) is arc-shaped, and two sides of the first clamping block (49) are plane; a pair of second arc grooves (491) are formed in the outer side wall of the cylinder (21), a first inclined plane is formed in the top end of each second arc groove (491), and two side walls of each second arc groove (491) are arranged in a plane mode.
5. The metal powder sintered filter cartridge forming device of claim 4, wherein: two groups of second grooves (5) which are symmetrically distributed are arranged on the first sliding plate (17); a group of second grooves (5) are square; a fourth rotating shaft (51) is rotationally connected to the bottom of the second groove (5); a group of fan blades (52) are fixedly connected to the outer side wall of the fourth rotating shaft (51); the bottom end of the fourth rotating shaft (51) extends out of the first sliding plate (17) and is fixedly connected with a fourth gear (54); a third gear (53) is arranged on the second rotating shaft (35); the third gear (53) and a set of fourth gears (54) are respectively intermeshed.
6. A metal powder sintered cartridge molding apparatus as claimed in claim 5, wherein: a pair of symmetrically distributed U-shaped cutting cavities (55) are formed in the first sliding plate (17), and the U-shaped cutting cavities (55) cut off the second grooves (5); the side wall of the U-shaped cutoff cavity (55) is fixedly connected with a cutoff plate (56) through a spring; a pair of first through holes (57) are formed in the cutoff plate (56); the side wall of the cutting plate (56) is fixedly connected with a push rod (58), and the push rod (58) penetrates through the outside of the first sliding plate (17).
7. The metal powder sintered filter cartridge forming device of claim 6, wherein: the third gear (53) is rotationally connected to the bottom end of the first sliding plate (17); a pair of half crescent grooves (6) which are symmetrically distributed about the center of the third gear (53) are formed in the inner annular wall of the third gear (53), and the half crescent grooves (6) on the pair of third gears (53) are symmetrically arranged about the center point of the first sliding plate (17); a pair of third grooves (61) are formed in the shaft wall of the inner annular wall of the third gear (53) of the second rotating shaft (35); the bottom of the third groove (61) is fixedly connected with a second clamping block (62) through a spring.
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| CN110233042A (en) * | 2019-06-05 | 2019-09-13 | 浙江鑫盛永磁科技有限公司 | A kind of ndfeb magnet manufacturing process |
| CN111872381A (en) * | 2020-07-31 | 2020-11-03 | 张月萍 | Sintering furnace for powder metallurgy field |
| CN112725649A (en) * | 2020-12-18 | 2021-04-30 | 中国矿业大学(北京) | Preparation method of metal modified ceramic particle reinforced metal matrix composite material |
| CN114832681A (en) * | 2022-05-17 | 2022-08-02 | 龙岩市瀚林汽车零部件制造有限公司 | Metal high-content filling material |
| CN115138848A (en) * | 2022-07-13 | 2022-10-04 | 阳江市天骄家庭用品制造有限公司 | Novel injection integrated into one piece cutter's preparation frock |
| CN116294556A (en) * | 2023-05-22 | 2023-06-23 | 上海晨华科技股份有限公司 | Unidirectional double-acting high-frequency vibration hot-pressing vacuum sintering furnace and application method thereof |
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