CN108620579A - A kind of powdered metallurgical material process equipment and its processing technology - Google Patents
A kind of powdered metallurgical material process equipment and its processing technology Download PDFInfo
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- CN108620579A CN108620579A CN201810772199.8A CN201810772199A CN108620579A CN 108620579 A CN108620579 A CN 108620579A CN 201810772199 A CN201810772199 A CN 201810772199A CN 108620579 A CN108620579 A CN 108620579A
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- iron powder
- charging
- powdered metallurgical
- equipment
- feeding
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- 239000000463 material Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000008569 process Effects 0.000 title claims abstract description 42
- 238000012545 processing Methods 0.000 title claims abstract description 30
- 238000005516 engineering process Methods 0.000 title claims description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000002156 mixing Methods 0.000 claims abstract description 55
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 238000003490 calendering Methods 0.000 claims abstract description 8
- 238000007600 charging Methods 0.000 claims description 90
- 238000005303 weighing Methods 0.000 claims description 66
- 238000005070 sampling Methods 0.000 claims description 64
- 239000000523 sample Substances 0.000 claims description 53
- 238000001125 extrusion Methods 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- 230000002000 scavenging effect Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 239000006052 feed supplement Substances 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 241000565675 Oncomelania Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 229920006324 polyoxymethylene Polymers 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 208000016261 weight loss Diseases 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- 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
- B22F3/003—Apparatus, e.g. furnaces
-
- B22F1/0003—
Abstract
The invention discloses a kind of powdered metallurgical material process equipment, the powdered metallurgical material process equipment replaces the equipment such as traditional mixer and open mill that can reduce occupation of land by using Reciprocating Pin Twin-Screw Extruder, improves processing efficiency, reduces pollution and cost.The interruption calendering process such as mixing, mill can be become continuous mixing technique by the way that powdered metallurgical material raw material, iron powder and auxiliary agent to be segmented to addition Reciprocating Pin Twin-Screw Extruder in proportion, the melting effect of powdered metallurgical material raw material, iron powder and auxiliary agent can be improved by the functions such as being sheared by Reciprocating Pin Twin-Screw Extruder, be orientated, cut, folding, stretching to material, improve product quality.
Description
Technical field
The present invention relates to technical field of powder metallurgy material preparation, and in particular to a kind of powdered metallurgical material process equipment and
Its processing technology.
Background technology
It is well known that existing powdered metallurgical material processing technology is generally by banburying process, the cooling for being interrupted setting
It is processed production with extruding-out process etc..Required equipment includes mixer, extruder etc., passes through these one steps one of equipment
Step is processed.Such process equipment and processing technology not only need larger factory and more manpower, simultaneously
Pollution of the various materials in transmitting transport process is also more serious；Most importantly production procedure is cumbersome, of high cost, processing efficiency
It is low, batch unstable quality.The prior art be badly in need of it is a kind of take up little area, pollute less, is at low cost, efficient and high processing quality powder
Powder metallurgy material process equipment and its processing technology.
Invention content
It is an object of the invention to overcome defect existing in the prior art, one kind is provided and takes up little area, pollute less, cost
Low, efficient and high processing quality powdered metallurgical material process equipment and its processing technology.Specific technical solution is as follows：
A kind of powdered metallurgical material process equipment, including electronic weighing balance charging system, Reciprocating Pin Twin-Screw Extruder
And single screw extrusion machine；The Reciprocating Pin Twin-Screw Extruder includes squeezing mixing system, reciprocal transmission system, electrical equipment control
System and temperature control system, it includes the machine barrel of subsection setup and the screw rod that mutual cooperation is arranged in machine barrel to squeeze mixing system
And pin, the machine barrel of the subsection setup includes front charging extruding zone and middle part charging mixing section successively；Electrical control system
Including ac speed regulator, contactor, breaker and interlock protection device；Temperature control system include cooling oil, water die heater and
Pipeline；The front charging extruding zone is equipped with the mixture entrance of powdered metallurgical material raw material, iron powder and auxiliary agent, and middle part charging is mixed
It closes section and is equipped with iron powder entrance；The Reciprocating Pin Twin-Screw Extruder extruding end is connect with single screw extrusion machine input terminal；It is described
The hollow fin for being preheated to iron powder of a number of dispersed distribution, institute are distributed in the inlet duct of iron powder inlet
The external hot-water line of inner cavity connection of hollow fin is stated, the vibration of feeding is provided on the inlet duct of the iron powder inlet
Device.
In above-mentioned technical proposal, traditional mixer and open mill etc. are replaced by using Reciprocating Pin Twin-Screw Extruder
Equipment can reduce occupation of land, improve processing efficiency, reduce pollution and cost.
Wherein, in the inlet duct of iron powder inlet the hot-water line of hollow fin and the hollow fin of connection setting, can
To be preheated before extruder is added to iron powder, to advantageously reduce new addition iron powder and extruder internal mix material
The temperature difference improves the quality of mixing.
In the present invention, the electronic weighing balance charging system feeds including the first, second, third, fourth electronic weighing balance
Equipment, the mixture entrance are equipped with the first, second, third electronic weighing balance charging (feeding) equipment, the powder metallurgy
Material feedstock, auxiliary agent, iron powder enter mixture entrance by the first, second, third electronic weighing balance charging (feeding) equipment respectively, described
Iron powder entrance is equipped with the 4th electronic weighing balance charging (feeding) equipment, and iron powder is entered by the 4th electronic weighing balance charging (feeding) equipment
Iron powder entrance in the charging mixing section of middle part.
In the present invention, the first, second, third, fourth electronic weighing balance charging (feeding) equipment respectively includes electronic weighing balance
Feed supplement storehouse, electronic weighing balance and feeding device.The intelligence of equipment feed may be implemented in such design.
According to different formulations, electronic measuring scale and feeding device can set 4 or more.
As a preferred embodiment of the present invention, the machine barrel of the subsection setup further includes rear portion mixing section, and described point
The machine barrel of section setting is divided into four segmentations set gradually, and the front charging extruding zone includes one section, and the middle part charging is mixed
It includes two sections to close section, and the rear portion mixing section includes three sections, four sections；The mixing of the powdered metallurgical material raw material, auxiliary agent, iron powder
Material entrance is connected to one section, and the iron powder entrance is connected to two sections.
According to different formulations, can optimal design-aside Reciprocating Pin Twin-Screw Extruder screw slenderness ratio >=20.
As a further improvement on the present invention, rotary sampling dish, institute are additionally provided on the outside of the machine barrel of the subsection setup
It states and is provided with sampling groove in rotary sampling dish, the sample tap of connection machine barrel inner cavity is offered on the barrel of the machine barrel, it is described
Rotary sampling dish is connected with sample tap sealing, and sampling groove when the rotary sampling disc spins above it can
It goes in machine barrel and outside machine barrel.
When the sampling groove in rotary sampling dish is rotated to machine barrel, the mixing material in machine barrel is filled to sampling groove
It is interior, when outside rotary sampling dish to machine barrel, it is kneaded material samples and is taken out of with sampling groove.
Preferably, the rotary sampling dish is driven by stepper motor and is rotated.
In order to realize the on-line monitoring of production process, it is ensured that the stability of product quality in the case of continuous production, close
The rotary sampling dish position is provided with sample on-line measuring device, and machine barrel is gone in the sampling groove of the rotary sampling dish
When the test position of outer setting, sensor probe and the sampling groove of the sample on-line measuring device align.According to inspection
Corresponding sample on-line measuring device and sensor probe can be arranged in the needs of survey project.
Preferably, sample blanking purging device, the sample blanking are being additionally provided with close to the rotary sampling dish position
Purging device includes pneumatic scavenging conduit, sample collection box, and the pneumatic scavenging conduit is gone in the sampling groove of the rotary sampling dish
It is aligned with the sampling groove when blanking position set outside machine barrel, the sample collection box is located at the rotary sampling dish
Lower section.After each sample detection, the rotary disc spins that sample to blanking position, open, rotatably take by sample blanking purging device
Sample in sample dish is purged and fallen into the sample collection box of lower section by pneumatic scavenging conduit.
A kind of powdered metallurgical material processing technology using above-mentioned powdered metallurgical material process equipment includes the following steps：
One, the first electronic weighing balance charging (feeding) equipment is added in half powdered metallurgical material raw material；
Two, auxiliary agent is imported into the second electronic weighing balance charging (feeding) equipment；
Three, iron powder is directed respectively into third and the 4th electronic weighing balance charging (feeding) equipment in proportion；
Four, Reciprocating Pin Twin-Screw Extruder is opened, by the first electronic weighing balance charging (feeding) equipment, the second electronic weighing balance
Charging (feeding) equipment and third electronic weighing balance charging (feeding) equipment are opened；First, second and third electronic weighing balance charging (feeding) equipment is according to pre-
Definite value puts into powdered metallurgical material raw material, auxiliary agent and iron powder, and powdered metallurgical material raw material, auxiliary agent and iron powder feed in front and squeeze out
Section is by reciprocating extruding and pushes middle part charging mixing section to；4th electronic weighing balance charging (feeding) equipment puts into iron powder simultaneously according to predetermined value
Continue to be kneaded with powdered metallurgical material raw material, auxiliary agent and the iron powder for being pushed into middle part charging mixing section；From compound pin after the completion of mixing
Nail screw extruder extruding end is squeezed out to single screw extrusion machine；
Five, the powdered metallurgical material after mixing is extruded into pellet by single screw extrusion machine；
Six, injection molding after cooling.
It is further improved as to above-mentioned processing technology, is sampled using rotary sampling dish in mixing process,
On-line checking is carried out to sample using sample on-line measuring device, and carries out the adjustment of calendering process parameter according to testing result.
It can by the way that powdered metallurgical material raw material, auxiliary agent and iron powder to be segmented to addition Reciprocating Pin Twin-Screw Extruder in proportion
With by mixing, mill etc. interruption calendering process become continuous mixing technique, by Reciprocating Pin Twin-Screw Extruder to material into
The functions such as shearing, orientation, cutting, folding, stretching of going can carry the melting effect of powdered metallurgical material raw material, auxiliary agent and iron powder,
Improve product quality.
As a preferred embodiment of the present invention, the Reciprocating Pin Twin-Screw Extruder screw speed is 100-400r/
Min, the single screw extrusion machine screw speed are 20-80r/min, and temperature range is 150-220 DEG C in described one section, described two
Temperature range is that temperature range is 150-220 DEG C in 150-220 DEG C, described three sections in section.
The beneficial effects of the invention are as follows：
First, a kind of powdered metallurgical material process equipment of the invention and its processing technology, by using reciprocating pin
Screw extruder replaces the equipment such as traditional mixer and open mill that can reduce occupations of land, improves processing efficiency, reduce pollution with
Cost；Reciprocating screw pin is added by the way that powdered metallurgical material raw material, iron powder and additive (auxiliary agent) to be segmented in proportion
Mixing, mill etc. can be interrupted calendering process by extruder becomes continuous mixing technique, passes through Reciprocating Pin Twin-Screw Extruder
Powdered metallurgical material raw material, auxiliary agent and iron powder can be improved by the functions such as being sheared, be orientated, cut, folded, stretched to material
Melting effect improves product quality.
Second, a kind of powdered metallurgical material process equipment of the invention and its processing technology pass through the rotary sampling of setting
Disk and sample on-line measuring device realize the on-line monitoring of the pilot process of powdered metallurgical material processing, and according to testing result
The adjustment for carrying out calendering process parameter further increases powdered metallurgical material processing quality to be conducive to optimize calendering process
Stability.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of powdered metallurgical material process equipment of the present invention；
Fig. 2 is that rotary sampling is arranged on the outside of machine barrel on the basis of a kind of powdered metallurgical material process equipment of Fig. 1
The structural schematic diagram of disk and sample on-line measuring device.
In figure：1, Reciprocating Pin Twin-Screw Extruder, 2, raw material feed supplement storehouse, 3, auxiliary agent feed supplement storehouse, 4, iron powder feed supplement storehouse, 5,
Iron powder feed supplement storehouse, 6, mixture entrance, the 7, first electronic weighing balance charging (feeding) equipment, the 8, second electronic weighing balance charging (feeding) equipment, 9,
Third electronic weighing balance charging (feeding) equipment, the 10, the 4th electronic weighing balance charging (feeding) equipment, 11, one sections, 12, two sections, 13, three sections, 14,
Four sections, 15, machine barrel, 16, single screw extrusion machine, 17, iron powder entrance；
In figure：20, the outside of machine barrel, 21, rotary sampling dish；22, sampling groove；23, stepper motor, 24, sample it is online
Detection device, 25, sensor probe, 26, pneumatic scavenging conduit.
In figure：A is to preheat hollow fin, and B is hot-water line, and C is vibrator.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only
For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.
Embodiment 1：
As Fig. 1 to 2 show a kind of embodiment of powdered metallurgical material process equipment of the present invention, including electronic weighing balance
Charging system, Reciprocating Pin Twin-Screw Extruder 1 and single screw extrusion machine 16；The Reciprocating Pin Twin-Screw Extruder 1 includes
Mixing system, reciprocal transmission system, electrical control system and temperature control system are squeezed, it includes subsection setup to squeeze mixing system
Machine barrel 15 and the cooperate screw rod and pin that are arranged in machine barrel 15, the machine barrel 15 of the subsection setup includes front successively
Feed extruding zone and middle part charging mixing section；Electrical control system includes ac speed regulator, contactor, breaker and interlock protection
Device；Temperature control system includes cooling oil, water die heater and pipeline；The front charging extruding zone is equipped with powdered metallurgical material
The mixture entrance 6 of raw material, iron powder and auxiliary agent, middle part charging mixing section are equipped with iron powder entrance 17；The reciprocating screw pin
1 extruding end of extruder is connect with 16 input terminal of single screw extrusion machine；If being distributed in the inlet duct at the iron powder entrance 17
The external hot water of inner cavity connection of the hollow fin A for being preheated to iron powder of dry quantity dispersed distribution, the hollow fin A
Pipe B is provided with the vibrator C of feeding on the inlet duct at the iron powder entrance 17.
In above-mentioned technical proposal, traditional mixer and open mill etc. are replaced by using Reciprocating Pin Twin-Screw Extruder
Equipment can reduce occupation of land, improve processing efficiency, reduce pollution and cost.
Wherein, the hot-water line B of hollow fin A and the hollow fin A of connection is set in the inlet duct at iron powder entrance 17
It sets, iron powder can be preheated before extruder is added, mixed with inside extruder to advantageously reduce the new iron powder that is added
The temperature difference for closing material, improves the quality of mixing.
In the present embodiment, the electronic weighing balance charging system adds including the first, second, third, fourth electronic weighing balance
Expect equipment 7,8,9,10, the mixture entrance 6 be equipped with the first, second, third electronic weighing balance charging (feeding) equipment 7,
8,9, the powdered metallurgical material raw material, auxiliary agent, iron powder respectively by the first, second, third electronic weighing balance charging (feeding) equipment 7,
8,9 enter mixture entrance 6, and the iron powder entrance 17 is equipped with the 4th electronic weighing balance charging (feeding) equipment 10, and iron powder is logical
Cross the iron powder entrance 17 that the 4th electronic weighing balance charging (feeding) equipment 10 enters in the charging mixing section of middle part.
Wherein, the first, second, third, fourth electronic weighing balance charging (feeding) equipment 7,8,9,10 respectively includes electrometer
Amount claims feed supplement storehouse, electronic weighing balance and feeding device.
According to different formulations, electronic measuring scale and feeding device can set 4 or more.
In the present embodiment, the machine barrel 15 of the subsection setup further includes rear portion mixing section, and the machine barrel of the subsection setup
15 points are four segmentations set gradually, and the front charging extruding zone includes one section 11, and the middle part charging mixing section includes
Two section 12, the rear portion mixing section includes three section 13, four section 14；The mixture of the powdered metallurgical material raw material, auxiliary agent, iron powder
Entrance 6 is connected to one section 11, and the iron powder entrance 17 is connected to two section 12.
According to different formulations, can optimal design-aside Reciprocating Pin Twin-Screw Extruder 1 screw slenderness ratio >=20.
As further improvement of this embodiment, 15 outside 20 of machine barrel of the subsection setup is additionally provided with rotary sampling
Disk 21 is provided with sampling groove 22 in the rotary sampling dish 21, is offered on the barrel of the machine barrel 15 in connection machine barrel 15
The sample tap of chamber, the rotary sampling dish 21 is connected with sample tap sealing, and the rotary sampling dish 21 is revolved
Sampling groove 22 when turning above it can be gone in machine barrel 15 and outside machine barrel 15.
When in the rotation to machine barrel 15 of sampling groove 22 in rotary sampling dish 21, the mixing material in machine barrel 15 is filled with
Into sampling groove 22, when rotary sampling dish 21 is outer to machine barrel 15, it is kneaded material samples and is taken out of with sampling groove 22.
Preferably, the rotary sampling dish 21 is driven by stepper motor 23 and is rotated.
In order to realize the on-line monitoring of production process, it is ensured that the stability of product quality in the case of continuous production, close
21 position of rotary sampling dish is provided with sample on-line measuring device 24, in the sampling groove 22 of the rotary sampling dish 21
When going to the test position set outside machine barrel 15, sensor probe 25 and the sampling groove of the sample on-line measuring device 24
22 align.According to the needs of detection project, corresponding sample on-line measuring device 24 and sensor probe 25 can be set.
Preferably, it is being additionally provided with sample blanking purging device close to 21 position of rotary sampling dish, the sample is fallen
Expect that purging device includes pneumatic scavenging conduit 26, sample collection box, the pneumatic scavenging conduit 26 takes the rotary sampling dish 21
Sample slot 22 aligns when going to the blanking position set outside machine barrel 15 with the sampling groove 22, and the sample collection box is located at described
Rotary sampling dish 21 lower section.After each sample detection, rotary sampling dish 21 is rotated to blanking position, and sample blanking is blown
Device unlatching is swept, the sample in rotary sampling dish 21 is purged and fallen into the sample collection box of lower section by pneumatic scavenging conduit 26.
Embodiment 2：
A kind of powdered metallurgical material processing technology of powdered metallurgical material process equipment using embodiment 1, including it is following
Step：
One, the first electronic weighing balance charging (feeding) equipment 7 is added in half powdered metallurgical material raw material；
Two, auxiliary agent is imported into the second electronic weighing balance charging (feeding) equipment 8；
Three, iron powder is directed respectively into third and the 4th electronic weighing balance charging (feeding) equipment 9,10 in proportion；
Four, Reciprocating Pin Twin-Screw Extruder 1 is opened, by the first electronic weighing balance charging (feeding) equipment 7, the second electronic measurement
Charging (feeding) equipment 8 and third electronic weighing balance charging (feeding) equipment 9 is claimed to open；First, second and third electronic weighing balance charging (feeding) equipment 7,
8,9 powdered metallurgical material raw material, auxiliary agent and iron powder are put into according to predetermined value, powdered metallurgical material raw material, auxiliary agent and iron powder are preceding
Portion feeds extruding zone by reciprocating extruding and pushes middle part charging mixing section to；4th electronic weighing balance charging (feeding) equipment 10 is according to predetermined
Value puts into iron powder and continues to be kneaded with powdered metallurgical material raw material, auxiliary agent and the iron powder for being pushed into middle part charging mixing section；It has been kneaded
Compound 1 extruding ends of screw pin extruder of Cheng Houcong are squeezed out to single screw extrusion machine 16；
Five, the powdered metallurgical material after mixing is extruded into pellet by single screw extrusion machine 16；
Six, injection molding after cooling.
It is further improved as to above-mentioned processing technology, is taken using rotary sampling dish 21 in mixing process
Sample carries out on-line checking to sample using sample on-line measuring device 24, and carries out calendering process parameter according to testing result
Adjustment.
As a kind of preferred embodiment of the present embodiment, 1 screw speed of the Reciprocating Pin Twin-Screw Extruder is 100-
400r/min, 16 screw speed of the single screw extrusion machine are 20-80r/min, and temperature range is 150-220 in described one section 11
DEG C, temperature range is that temperature range is 150-220 DEG C in 150-220 DEG C, described three section 13 in described two section 12.
Embodiment 3：
Powdered metallurgical material processing technology is described in more detail below.
First, the first electronic weighing balance charging (feeding) equipment 7 is added in POM raw material；
The second, auxiliary agent is imported into the second electronic weighing balance charging (feeding) equipment 8；
Iron powder is imported third and fourth electronic weighing balance charging (feeding) equipment 9,10 by third；
4th, Reciprocating Pin Twin-Screw Extruder 1 is opened, by the first electronic weighing balance charging (feeding) equipment 7, the second electrometer
Amount claims charging (feeding) equipment 8 and third electronic weighing balance charging (feeding) equipment 9 to open；4th electronic weighing balance charging (feeding) equipment 10 is opened；Institute
It is 100-400r/min to state 1 screw speed of Reciprocating Pin Twin-Screw Extruder；The temperature of each section and screw rod is set by temperature control
Standby stringent control, controls temperature range such as following table
First electronic weighing balance charging (feeding) equipment 7, the second electronic weighing balance charging (feeding) equipment 8 and the charging of third electronic weighing balance are set
Standby that pressure feeding device can be arranged between 9 and one section 11, powdered metallurgical material feed(raw material)inlet is located at one section 11 of top；It will
POM raw material, auxiliary agent and iron powder are added by force in machine barrel 15, Reciprocating Pin Twin-Screw Extruder 1 screw rod reciprocating extrusion and
Under the shear action of pin, POM raw material, auxiliary agent and iron powder are broken and squeeze, while pushing middle part charging to screw rod and mixing
Section；
Drawing-in device, the drawing-in device and 2 can be set between the 4th electronic weighing balance charging (feeding) equipment 10 and two section 12
The connection of 12 sides of section, the 4th electronic weighing balance charging (feeding) equipment 10 and drawing-in device according to predetermined value put into iron powder and be pushed into middle part
POM, auxiliary agent and the iron powder of charging mixing section continue to be kneaded；It is squeezed out from Reciprocating Pin Twin-Screw Extruder extruding end after the completion of mixing
To single screw extrusion machine 16；
Five, it is in particle that single screw extrusion machine 16, which squeezes out the mixing colloid after mixing,；16 screw rod of the single screw extrusion machine
Rotating speed is 20-80r/min.
Six, injection molding after cooling.
Process equipment of the present invention and processing technology are not limited only to processing POM (polyformaldehyde), while being also applied for PE
The entirely or partially technique of (polyethylene), PP (polypropylene) etc., add auxiliary agent and iron powder because its purposes and require it is different,
But processing step and equipment are identical as equipment of the present invention and technique.Added using equipment of the present invention and technique
Work is compared with traditional discontinuous processing, first, weight-loss metering nested design measuring powder metallurgical material raw material, auxiliary agent, iron powder
Equal continuous chargings, produce into reciprocating mixing extruder continuous mixing, and proportioning is accurate, and continuous mixing technology controlling and process is stablized, from
Dynamicization degree is high, and product quality is stablized；Secondly, labor intensity is reduced, productivity effect is improved；Again, workshop pollution is reduced, is improved
Working environment；Again, operation is safe and reliable；Finally, technological process is reduced, equipment and workshop input is reduced, reduces production
Cost.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of powdered metallurgical material process equipment, which is characterized in that including electronic weighing balance charging system, reciprocating pin oncomelania
Bar extruder and single screw extrusion machine；The Reciprocating Pin Twin-Screw Extruder include squeeze mixing system, reciprocal transmission system,
Electrical control system and temperature control system, it includes that the machine barrel of subsection setup and mutual cooperation are arranged in machine barrel to squeeze mixing system
The machine barrel of interior screw rod and pin, the subsection setup includes front charging extruding zone and middle part charging mixing section successively；Electric appliance
Control system includes ac speed regulator, contactor, breaker and interlock protection device；Temperature control system includes cooling oil, water
Die heater and pipeline；The front charging extruding zone is equipped with the mixture entrance of powdered metallurgical material raw material, iron powder and auxiliary agent, in
Portion's charging mixing section is equipped with iron powder entrance；The Reciprocating Pin Twin-Screw Extruder extruding end connects with single screw extrusion machine input terminal
It connects；The hollow for being preheated to iron powder of a number of dispersed distribution is distributed in the inlet duct of the iron powder inlet
The inner cavity of fin, the hollow fin is connected to external hot-water line, and feeding use is provided on the inlet duct of the iron powder inlet
Vibrator.
2. a kind of powdered metallurgical material process equipment according to claim 1, which is characterized in that the electronic weighing balance adds
Material system includes the first, second, third, fourth electronic weighing balance charging (feeding) equipment, and the mixture entrance is equipped with described the
One, second, third electronic weighing balance charging (feeding) equipment, the powdered metallurgical material raw material, auxiliary agent, iron powder pass through first, respectively
Two, third electronic weighing balance charging (feeding) equipment enters mixture entrance, and the iron powder entrance is equipped with the 4th electronic measurement
Charging (feeding) equipment, iron powder is claimed to enter the iron powder entrance in the charging mixing section of middle part by the 4th electronic weighing balance charging (feeding) equipment.
3. a kind of powdered metallurgical material process equipment according to claim 2, which is characterized in that described first, second,
Three, the 4th electronic weighing balance charging (feeding) equipment respectively includes electronic weighing balance feed supplement storehouse, electronic weighing balance and feeding device.
4. a kind of powdered metallurgical material process equipment according to claim 2, which is characterized in that the machine of the subsection setup
Cylinder further includes rear portion mixing section, and the machine barrel of the subsection setup is divided into four segmentations set gradually, and the front charging is squeezed
It includes one section to go out section, and the middle part charging mixing section includes two sections, and the rear portion mixing section includes three sections, four sections；The powder
Metallurgical material raw material, auxiliary agent, iron powder mixture entrance be connected to one section, the iron powder entrance is connected to two sections.
5. a kind of powdered metallurgical material process equipment according to claim 1, which is characterized in that the machine of the subsection setup
Cylinder outside is additionally provided with rotary sampling dish, and sampling groove is provided in the rotary sampling dish, is opened on the barrel of the machine barrel
Sample tap equipped with connection machine barrel inner cavity, the rotary sampling dish is connected with sample tap sealing, and the rotation
Sampling groove when formula samples disc spins above it can be gone in machine barrel and outside machine barrel.
6. a kind of powdered metallurgical material process equipment according to claim 5, which is characterized in that close to described rotary
Sampling dish position is provided with sample on-line measuring device, and the inspection set outside machine barrel is gone in the sampling groove of the rotary sampling dish
When location is set, sensor probe and the sampling groove of the sample on-line measuring device align.
7. a kind of powdered metallurgical material process equipment according to claim 5, which is characterized in that close to described rotary
Sampling dish position is additionally provided with sample blanking purging device, and the sample blanking purging device includes pneumatic scavenging conduit, sample collection box,
The pneumatic scavenging conduit when the sampling groove of the rotary sampling dish goes to the blanking position set outside machine barrel with the sampling
Slot aligns, and the sample collection box is located at the lower section of the rotary sampling dish.
8. a kind of powdered metallurgical material using the powdered metallurgical material process equipment described in any one of claim 1 to 7 adds
Work technique, which is characterized in that the powdered metallurgical material processing technology includes the following steps：
One, the first electronic weighing balance charging (feeding) equipment is added in half powdered metallurgical material raw material；
Two, auxiliary agent is imported into the second electronic weighing balance charging (feeding) equipment；
Three, iron powder is directed respectively into third and the 4th electronic weighing balance charging (feeding) equipment in proportion；
Four, Reciprocating Pin Twin-Screw Extruder is opened, the first electronic weighing balance charging (feeding) equipment, the second electronic weighing balance is fed
Equipment and third electronic weighing balance charging (feeding) equipment are opened；First, second and third electronic weighing balance charging (feeding) equipment is according to predetermined value
Powdered metallurgical material raw material, auxiliary agent and iron powder are put into, powdered metallurgical material raw material, auxiliary agent and iron powder are in front charging extruding zone quilt
Reciprocating extruding simultaneously pushes middle part charging mixing section to；4th electronic weighing balance charging (feeding) equipment according to predetermined value put into iron powder and with push away
Powdered metallurgical material raw material, auxiliary agent and iron powder to middle part charging mixing section continue to be kneaded；From compound pin spiral shell after the completion of mixing
Bar extruder extruding end is squeezed out to single screw extrusion machine；
Five, the powdered metallurgical material after mixing is extruded into pellet by single screw extrusion machine；
Six, injection molding after cooling.
9. a kind of powdered metallurgical material processing technology according to claim 8, it is characterised in that：It is used in mixing process
Rotary sampling dish is sampled, and on-line checking is carried out to sample using sample on-line measuring device, and according to testing result into
The adjustment of row calendering process parameter.
10. powdered metallurgical material processing technology according to claim 8, it is characterised in that：The reciprocating screw pin
Extruder screw rotating speed is 100-400r/min, and the single screw extrusion machine screw speed is 20-80r/min, in described one section
Temperature range is that temperature range is that temperature range is 150-220 in 150-220 DEG C, described three sections in 150-220 DEG C, described two sections
℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772199.8A CN108620579B (en) | 2018-07-13 | Powder metallurgy material processing equipment and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772199.8A CN108620579B (en) | 2018-07-13 | Powder metallurgy material processing equipment and processing technology thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN108620579A true CN108620579A (en) | 2018-10-09 |
| CN108620579B CN108620579B (en) | 2024-04-26 |
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