CN103921470A - Ring die bushing of ring die straw forming machine and manufacturing method of ring die bushing - Google Patents
Ring die bushing of ring die straw forming machine and manufacturing method of ring die bushing Download PDFInfo
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- CN103921470A CN103921470A CN201410112815.9A CN201410112815A CN103921470A CN 103921470 A CN103921470 A CN 103921470A CN 201410112815 A CN201410112815 A CN 201410112815A CN 103921470 A CN103921470 A CN 103921470A
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- lining
- ring
- hole
- forming machine
- ring die
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- 239000010902 straw Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000005496 tempering Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 4
- 230000000171 quenching effect Effects 0.000 claims abstract description 4
- 230000003746 surface roughness Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 238000013461 design Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- -1 higher Si and Ca Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
- B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
- B30B11/205—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material using an annular series of radial die cells, especially for crop material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention relates to a ring die straw forming machine, in particular to a ring die bushing of the ring die straw forming machine and a manufacturing method of the ring die bushing. A ring die is provided with ring-die through holes radially, the bushing is mounted in each ring-die through hole to form a ring die hole, and the bushings with different compressibilities, compression ratios and taper angles can be replaced according to requirements. A bushing base body is made of No.45 steel, a heat treatment mode is to perform quenching prior to tempering, the tempering temperature is within a range of 600-650 DEG C, and Rockwell hardness of the base body after tempering is HRC40-50. The inner wall of the bushing is subjected to surface polishing to enable surface roughness to be lower than Ra3.2, then coating treatment is performed, the type of a coating is selected as TiCN, and thickness of the coating ranges from 2 micrometers to 4 micrometers. The coating is smooth and bright and free of pores and cracks, hardness of the strengthened coating can reach to HRC80-85. Maintenance cost of the ring die straw forming machine is lowered greatly, and the ring die is long in service life, low in energy consumption and high in efficiency.
Description
Technical field
The present invention relates to encircle mould forming machine for straw, refer in particular to a kind of ring mould forming machine for straw ring die bush cover and manufacture method thereof, particularly about a kind of long service life, can carry out according to different demands design and the manufacture method of the ring die bush cover of convenient changing.
Background technology
Agricultural crop straw is a valuable resource, and China is large agricultural country, and stalk resource is abundant, is listed as first of the world; But these agricultural crop straws are not fully used, a large amount of burnings have become a great social concern, waste resource, and contaminated environment, the curing molding of stalk is the good method addressing this problem.
Ring mould forming machine for straw has the advantages such as productivity ratio is high, energy consumption is lower, becomes gradually the main flow equipment of current straw solidification moulding; But in biomass straw, there are the metals such as higher Si and Ca, K, in straw collecting process, also can carry much silt secretly, in straw compressing and forming process, because being under higher temperature and extruding force, ring mould works, ring nib inwall and material be all the time in abrasion state, so it is very serious to cause encircling the wearing and tearing of mould; When ring mould is while may wear to a certain degree, raw material just cannot moulding; Therefore, the wearing and tearing of ring mould have determined the service life of biomass forming machine, at present, foreign biomolecule matter shaped fuel just need to be repaired ring mould when producing 800-1000t, the domestic 150-300t that can only produce just need repair ring mould, because ring mould suffered frictional force when the moulding is very large, and the ring mould processing mode adopting at present cannot meet the environment of high frictional force, causes ring mould to cross quick-wearing; On the other hand, the ring module spliced group of encircling at present mould employing forms, and its manufacturing process is comparatively coarse, and poor stability causes the Fast Wearing of ring mould, has increased production cost, and this has become and has carried out the principal element that a step restriction ring mould forming machine for straw large-scale promotion is used.
Chinese patent 201210339933.4 discloses a kind of forming machine for straw ring die bush cover, and lining is connected by dovetail groove matched in clearance with ring nib, once lining be damaged can easily change to have easy accessibility, is convenient to cleaning during obstruction, improves ring mould service life; But also have the following disadvantages: first, lining runs through ring nib from practical application angle unnecessary, because ring nib is only in spacer and forming cavity serious wear, and very little in the wearing and tearing of guarantor's die cavity, so a design meeting further increases production cost, and stalk comprehensive utilization is an environmental protection industry, in rural area, be widely used, profit is not high, therefore need to from each source, accomplish to reduce cost, could really promote; Second, lining is isometrical hole compression ratio and the compression ratio such as, though isometrical ring nib is more conducive to processing, but straw compressing and forming operating mode is comparatively complicated, through long production application, find, the required ring nib technological parameter of different molding parameters and type of feed is also not quite similar, and therefore isometrical ring nib production adaptability is poor, the moulding compact density of producing is lower, inferior quality; The 3rd, without introducing in detail design and the manufacturing process of lining, and only determine ring mould parameter in advance under just can design, also need economical and practical manufacturing process technology simultaneously, just can guarantee that it is in industrial large-scale application.
Therefore, research new ring die bush Analysis of Nested Design method and manufacturing process become urgent problem to manufacture wear-resisting stronger ring mould.
Summary of the invention
For above problem, the invention provides that a kind of operating efficiency is high, the ring mould forming machine for straw ring die bush of long service life cover and manufacture method thereof, ring mould radially offers the ring mould through hole that ladder is set, ladder is divided into upper part and lower part by ring mould through hole, and through hole coordinates the complete ring nib of formation with lining; Ring mould is that monoblock cast is made, and lining carries out face coat processing.
The present invention adopts technical scheme as follows:
The invention provides a kind of ring mould forming machine for straw ring die bush cover, described ring mould adopts the moulding of cast-in-block mode, along ring mould radial direction, offers ring mould through hole, and it is identical that each encircles nib shape; Lining outside is provided with ring set, and sleeve outer surface shape is identical with part inner surface configuration on ring mould through hole; Lining and ring mould through hole are installed to coordinate and form ring nib; According to different conditions of molding, can change as required different compression ratios, compress the when lining of cone angle, guarantee the molding technological condition that remains best.
It is 30-60 that described ring mould is offered stepped ring mould through hole number, and further, hole number is 30,45 and 60.
Described lining outside is provided with arc ring set, and after all linings and ring mould through hole are installed, all ring sets are pieced together together embedding just and completely encircled mould inner side.
Described lining porch is larger diameter end, through boring chamfered transition to smaller diameter end; It is identical that the external shape of lining and ring mould through hole top are divided, and lining is arranged on ring mould through hole in subregion and is coordinated with partial shape on through hole.
The shape of described lining specifically end diameter size is 28mm, 30mm, 32mm, compression ratio is that lining outside diameter is 1.1～1.3 with end diameter ratio, lining coning angle size is 5.5 °～6 °, compression ratio encircles the whole length of nib is 3～9 with lining end diameter ratio, and the large end length of lining and lining cone bevel altitude and lining small end length ratio are followed successively by 3:1:1; According to producing different stalks, can choose dissimilar lining.
Described dissimilar lining external shape all answers identical being convenient to coordinate with ring mould through hole, strengthens practicality and the versatility of forming machine.
Described lining is that lining smaller diameter end is inserted along ring mould through hole with encircling subregion mounting means on mould through hole, when lining small end contacts with ring mould through hole ladder, installs, and now ring set also should contact with inside ring mould just; Fit system is matched in clearance, so coordinates and is convenient to remove and install.
Lining coordinates and forms unbroken loop nib with the seamless smooth excessiveness of part under ring mould through hole, and described ring nib is comprised of spacer, forming cavity and guarantor's die cavity three parts.
Described ring nib spacer length and the large end of lining are equal in length, and forming cavity length is bored bevel altitude with lining and equated, protecting die cavity length is that lining small end length adds ring mould through hole ladder lower end length sum.
The present invention also provides a kind of manufacturing process for lining and ring mould, and wherein, No. 45 steel castings of lining matrix adopting are made, and described lining inner wall surface is carried out coating processing; Ring mould adopts No. 45 steel monoblock casts to make; Lining matrix heat treatment mode carries out tempering after quenching, and temperature is between 600-650 ℃, and the matrix Rockwell hardness after tempering is between HRC40-50.
Lining after heat treatment carries out inner wall surface polishing before coating is processed, and makes surface roughness lower than Ra3.2.
Types of coatings is selected TiCN, and the thickness of coating is that between 2-4 μ m, coating hardness can reach between HRC80-85.
The present invention compared with prior art, breaks through prior art ring mould Design Thinking pattern, adopts brand-new design structure and cure process mode; Application of the present invention, has thoroughly solved the wear problem that encircles mould forming machine for straw, greatly improves the wearability of ring mould, thereby improves the service life of ring mould forming machine for straw; And in view of straw compressing and forming operating mode is comparatively complicated, can according to the different factor of productions, change the lining of different process size, guarantee that forming machine moulding is all the time in preferably working under technological parameter condition.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
The profile that accompanying drawing 2 is Fig. 1;
The Local map that accompanying drawing 3 is Fig. 2;
Accompanying drawing 4 is lining profile in Fig. 1;
Main symbol description is as follows: 1, part 6, ring set 7, spacer 8, forming cavity 9 under part 5, through hole on ring mould 2, lining 3, ring nib 4, through hole, protect die cavity 10, ring mould through hole 11, ladder.
The specific embodiment
Lining outside is provided with ring set, and sleeve outer surface shape should be identical with part inner surface configuration on ring mould through hole, lining is installed to coordinate with ring mould through hole form ring nib, guarantees to encircle nib and has preferably wearability, reduces production costs; To different conditions of molding, can change as required different compression ratios, compress the when lining of cone angle, guarantee that forming machine works all the time under best molding technique parameter.
As shown in Fig. 1,2,3 and 4, the present invention is a kind of for encircling the ring die bush cover 2 on mould forming machine for straw, ring mould 1 adopts the moulding of cast-in-block mode, along ring mould 1, radially offer the through hole 10 that ladder 11 is set, each ring mould through hole 10 shapes are identical, and ladder 11 is divided into upper part 4 and lower part 5 by through hole 10; Ring mould through hole number is 30-60, and further, hole number is 30,45 and 60, and on ring mould through hole, the shape of part 4 is identical with sleeve outer surface shape.
Lining 2 outsides are provided with arc ring set 6, and after all linings 2 and ring mould through hole 10 are installed, all ring sets 6 are pieced together together embedding just and completely encircled mould 1 inner side; Lining porch is larger diameter end, through boring chamfered transition to smaller diameter end; The external shape of lining is identical with part 4 on ring mould through hole, lining 2 is arranged on ring mould through hole in part 4 regions and with through hole on part 4 form fit; During design lining 2, according to its size of different working conditions, can be: end diameter size is 28mm, 30mm, 32mm, compression ratio is that lining outside diameter is 1.1～1.3 with end diameter ratio, lining coning angle size is 5.5 °～6 °, compression ratio encircles the whole length of nib is 3～9 with lining end diameter ratio, the large end length of lining and lining cone bevel altitude and lining small end length ratio are followed successively by 3:1:1, after above-mentioned parameter is determined, can manufacture according to the different stalk of processing the lining 2 of different model; Dissimilar lining external shape all answers identical being convenient to coordinate with ring mould through hole 10 in addition, strengthens practicality and the versatility of forming machine; On lining 2 and ring mould through hole, part 4 region mounting means are, lining smaller diameter end is inserted along ring mould through hole 10, when contacting with ring mould through hole ladder 11, lining small end installs, now ring set 6 also should contact with ring mould inner side just, fit system is matched in clearance, so coordinates and is convenient to remove and install; Lining 2 coordinates and forms unbroken loop nib 3 with the seamless smooth excessiveness of part 5 under ring mould through hole, and described ring nib 3 is comprised of spacer 7, forming cavity 8 and guarantor's die cavity 9 three parts; Ring nib 3 spacer 7 length and the large end of lining are equal in length, and forming cavity 8 length equate with lining cone bevel altitude, protect die cavity 9 length and lining small end length and add that ring mould through hole 10 ladder 11 lower ends are equal in length.
Lining 2 matrix materials adopt No. 45 steel castings to make, and lining 2 inner wall surface are carried out coating processing; Ring mould 1 adopts No. 45 monoblock casts to make; Lining 2 matrix heat treatment modes carry out tempering after quenching, and temperature is between 600-650 ℃, and the matrix Rockwell hardness after tempering is between HRC40-50; Lining 2 after heat treatment carries out inner wall surface polishing before coating is processed, and makes inner wall surface roughness lower than Ra3.2; Types of coatings is selected TiCN, and the thickness of coating is between 2-4 μ m, and through TiCN coating, matrix hardness can reach between HRC80-85.
Ring mould 1 of the present invention is made for block cast, lining 2 coordinates and forms ring nib with part 5 under ring mould through hole, ring nib 3 is divided into spacer 7, forming cavity 8 and protects die cavity 9 three parts, spacer 7 and forming cavity 8 are the main abrading sections in forming process, and protect die cavity 9 wearing and tearing, be very little, therefore spacer 7 of the present invention and forming cavity 8 are provided with lining 2, and protect die cavity 9, lining are not set, and can effectively save material; Its main material is to carry out face coat after No. 45 steel heat treated again, so both guaranteed that ring nib 3 had excellent wearability, its strength and stiffness have been guaranteed again, make to encircle mould 1 and when moulding, there is high wearability and good stability, the stable work time that encircles mould 1 is brought up to more than 500 hours by original less than for 100 hours, made the steady operation life-span of encircling mould forming machine for straw have qualitative leap.
Claims (10)
1. a ring mould forming machine for straw ring die bush cover (2), comprises ring mould (1), and ring mould (1) is made for monoblock cast, it is characterized in that: described ring mould (1) radially offers the through hole (10) that ladder (11) are set; Ladder (11) is divided into upper part (4) and lower part (5) by through hole (10); Lining (2) be arranged in the upper part (4) of through hole (10) and with upper part (4) form fit of through hole (10); Lining (2) coordinates and forms unbroken loop nib (3) with the lower part of through hole (10) (5) seamless smooth excessiveness; Change as required different compression ratios, compress the when lining of cone angle (2), guarantee the molding technique parameter that remains best.
2. a kind of ring mould forming machine for straw ring die bush cover according to claim 1, is characterized in that: through hole (10) number that described ring mould (1) is offered is 30-60.
3. a kind of ring mould forming machine for straw ring die bush cover according to claim 2, is characterized in that: the number of described through hole (10) is 30,45 and 60.
4. a kind of ring mould forming machine for straw ring die bush cover according to claim 1, it is characterized in that: described lining (2) extension is provided with arc ring set (6), after all linings (2) and the through hole (10) of ring mould (1) are installed, all ring sets (6) are pieced together together the inner side that embedding just completely encircles mould (1).
5. a kind of ring mould forming machine for straw ring die bush cover according to claim 1, is characterized in that: described lining (2) porch is larger diameter end, through boring chamfered transition to smaller diameter end; The shape of described lining (2) specifically end diameter size is 28mm, 30mm or 32mm, and compression ratio is that the outside diameter of lining (2) is 1.1～1.3 with end diameter ratio, and lining coning angle size is 5.5 °～6 °; The whole length that compression ratio encircles nib (3) is 3～9 with lining end diameter ratio, and the small end length ratio of the large end length of lining (2) and the cone bevel altitude of lining (2) and lining (2) is followed successively by 3:1:1; According to the different stalk of processing, can choose dissimilar lining.
6. a kind of ring mould forming machine for straw ring die bush cover according to claim 1, it is characterized in that: described lining (2) is arranged on interior finger of upper part (4) of through hole (10): lining (2) smaller diameter end is inserted along through hole (10), when lining (2) smaller diameter end contacts with the ladder (11) of through hole (10), install, now the ring set (6) of lining (2) also contacts with ring mould (1) inner side just; Fit system is matched in clearance, so coordinates and is convenient to remove and install.
7. a kind of ring mould forming machine for straw ring die bush cover according to claim 1, is characterized in that: described ring nib (3) is comprised of spacer (7), forming cavity (8) and guarantor's die cavity (9) three parts; Spacer (7) length of ring nib (3) and the large end of lining (2) are equal in length, forming cavity (8) length equates with the cone bevel altitude of lining (2), and protecting die cavity (9) length is the small end length of lining (2) and ladder (11) the lower end length sum of through hole (10).
8. a kind of manufacture method of encircling mould forming machine for straw ring die bush cover according to claim 1, it is characterized in that: after the casting of lining matrix is made, lining matrix is heat-treated, and the lining after heat treatment carries out inner wall surface polishing, applying coating after polishing before coating is processed.
9. a kind of manufacture method of encircling mould forming machine for straw ring die bush cover according to claim 8, it is characterized in that: No. 45 steel castings of lining matrix adopting are made, heat treatment mode carries out tempering after quenching, temperature is between 600-650 ℃, and the matrix Rockwell hardness after tempering is between HRC40-50.
10. a kind of manufacture method of encircling mould forming machine for straw ring die bush cover according to claim 8, is characterized in that: described polishing should make inner wall surface roughness lower than Ra3.2; Types of coatings is selected TiCN, and the thickness of coating is that between 2-4 μ m, coating hardness can reach between HRC80-85.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112815.9A CN103921470B (en) | 2014-03-25 | 2014-03-25 | A kind of ring mould forming machine for straw ring die bush cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112815.9A CN103921470B (en) | 2014-03-25 | 2014-03-25 | A kind of ring mould forming machine for straw ring die bush cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103921470A true CN103921470A (en) | 2014-07-16 |
| CN103921470B CN103921470B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112815.9A Active CN103921470B (en) | 2014-03-25 | 2014-03-25 | A kind of ring mould forming machine for straw ring die bush cover |
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| Country | Link |
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| CN (1) | CN103921470B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527125A (en) * | 2014-12-03 | 2015-04-22 | 哈尔滨工业大学 | Bush with metal ceramic composite structure for flat-die biomass molding machine and growing method of aluminum oxide ceramic layer |
| CN106732180A (en) * | 2016-11-29 | 2017-05-31 | 江苏鸿舜生物能源开发有限公司 | A kind of biomass granulation machine ring mould and preparation method thereof |
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| DE102004030397A1 (en) * | 2004-06-23 | 2006-01-19 | Hafner, Edzard, Prof. Dr.-Ing. | Ring die for press, has groove passage opening for retaining replaceable abrasion sleeves, and protection unit for protecting sleeves in casing by pushing out passage opening towards casing exterior side |
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| KR20090066895A (en) * | 2007-12-20 | 2009-06-24 | 한국단자공업 주식회사 | Progressive mold assembly |
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| CN102848598A (en) * | 2012-09-14 | 2013-01-02 | 江苏圆通农机科技有限公司 | Circular mold bush for straw briquetting machine |
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2014
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| DE102004030397A1 (en) * | 2004-06-23 | 2006-01-19 | Hafner, Edzard, Prof. Dr.-Ing. | Ring die for press, has groove passage opening for retaining replaceable abrasion sleeves, and protection unit for protecting sleeves in casing by pushing out passage opening towards casing exterior side |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527125A (en) * | 2014-12-03 | 2015-04-22 | 哈尔滨工业大学 | Bush with metal ceramic composite structure for flat-die biomass molding machine and growing method of aluminum oxide ceramic layer |
| CN104527125B (en) * | 2014-12-03 | 2016-08-17 | 哈尔滨工业大学 | A kind of alumina ceramic layer growing method of having cermet composite structure lining |
| CN106732180A (en) * | 2016-11-29 | 2017-05-31 | 江苏鸿舜生物能源开发有限公司 | A kind of biomass granulation machine ring mould and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103921470B (en) | 2016-03-02 |
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Effective date of registration: 20171201 Address after: 102200 No. 5, Spark Street, Changping District science and Technology Park, Beijing Patentee after: WANHUA ECOBOARD Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: Jiangsu University |
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