CN102189381A - Method for integrally forging combined bow-shaped rake - Google Patents
Method for integrally forging combined bow-shaped rake Download PDFInfo
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- CN102189381A CN102189381A CN2011101021571A CN201110102157A CN102189381A CN 102189381 A CN102189381 A CN 102189381A CN 2011101021571 A CN2011101021571 A CN 2011101021571A CN 201110102157 A CN201110102157 A CN 201110102157A CN 102189381 A CN102189381 A CN 102189381A
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- bow
- rake
- heating
- shaped handle
- bow type
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Abstract
The invention relates to a method for producing a rake head as a gardening tool, in particular to a method for integrally forging a combined bow-shaped rake which is made of 65Mn steel. The method comprises the steps of: sending a rake head steel blank into a heating furnace for heating to above 1000 DEG C, integrally punching and forming rake teeth by using a punching device, and reserving bow-shaped handle stocks at two sides of the rake teeth; secondarily sending into the heating furnace for heating to above 900 DEG C, and forging the bow-shaped handle stocks; thirdly heating to above 1000 DEG C by using a high-frequency heating device, and roll-forging and drawing the bow-shaped handle stocks until the length of the bow-shaped handle stocks reaches the length of half of a bow-shaped handle at most by using a roll-forging device; fourthly heating to above 900 DEG C, synthesizing the bow-shaped handle stocks at two sides of the rake teeth by using a bending machine, then welding, reinforcing and forming the bow-shaped handle; fifthly heating to above 900 DEG C, forming radian of the rake teeth by using the punching device; and cleaning the surface of a rake body, baking finish and spraying. The bow-shaped rake produced by adopting the method has more excellent property, flexibility, elasticity, tensile strength and the like, and can not have phenomena such as deformation, breaking and the like during the use.
Description
Technical field:
The present invention relates to the production method of garden instrument drag head, especially a kind of method of solid forging disjunctor bow type rake.
Background technology:
Known garden instrument drag head adopts the split punching press to be welded.Also because the problem that exists on the processing method makes drag head in use, there are problems such as yielding, arc handle of rake teeth and rake body connecting portion easy fracture in this series products except the material problem.
Summary of the invention:
The present invention is intended to solve the product defects that existing garden instrument drag head brings because of material and processing method, is the method for material, solid forging disjunctor bow type rake with the 65Mn steel and provide a kind of.
The technical scheme that the present invention addresses the above problem employing is:
A kind of method of solid forging disjunctor bow type rake, it selects the 65Mn steel for use is material, its step is as follows:
A. the drag head steel billet is sent into heating furnace and heated more than 1000 ℃, adopt the whole punch forming rake teeth of pressing equipment, and the bow type handle of reservation rake teeth both sides is got the raw materials ready;
B. secondary is gone into heating furnace, heats to more than 900 ℃, bow type handle is got the raw materials ready forge;
C. heat for the third time to more than 1000 ℃ with high-frequency heating apparatus, the roll forging of getting the raw materials ready is stretched to that mostly a bow type handle is long to bow type handle with roll forging equipment;
D. heat for the 4th time to more than 900 ℃, it is synthetic with bender the bow type handle of rake teeth both sides to be got the raw materials ready, then reinforcement of weld moulding bow type handle;
E. heat for the 5th time to more than 900 ℃, adopt pressing equipment, moulding rake teeth radian;
F. harrow the surface cleaning, baking vanish, spraying.
Compared with prior art, technique scheme of the present invention adopts whole punching press, solid forging, shank and rake teeth body portion to be structure as a whole, and arc rabble arm stretches through roll forging and forms.The drag head material is selected the 65Mn steel of stable mechanical performance for use, and is no matter more superior from aspects such as performance, toughness, elasticity, tensile strength.Solve the connectivity problem of traditional rake body and arc handle, increased material density, reached the most complete degree of garden instrument product, in use phenomenons such as distortion, fracture can not occur.
The specific embodiment:
Below in conjunction with embodiment in detail the present invention is described in detail.
Present embodiment is the production method of a 14 tooth disjunctor bow types rake, and its step is as follows:
(1) selecting the 65Mn steel for use is the drag head steel billet, the steel billet specification: length 590 mm, width 100mm, thickness 8mm.
(2) the drag head steel billet is sent in the gas-fired heater, heated more than 1000 ℃, adopt 1,600 thousand self-conceit moving pressing equipments then, whole punch forming rake teeth, and the bow type handle of reservation rake teeth both sides is got the raw materials ready.
(3) secondary enters gas-fired heater, heats to more than 900 ℃, bow type handle is got the raw materials ready forge.
(4) adopt high-frequency heating apparatus to heat for the third time, to the roll forging stretching of getting the raw materials ready of bow type handle, be molded into φ 8 * 400 mm length with the D-320 roll forging equipment to more than 1000 ℃.
Heat to more than 900 ℃ for (5) the 4th times, it is synthetic with bender the bow type handle of rake teeth both sides to be got the raw materials ready, and uses the gas-shielded welder reinforcement of weld then, moulding bow type handle.
Heat to more than 900 ℃ for (6) the 5th times, adopt 800,000 Ns of pressing equipments, moulding rake teeth radian.
(7) use shot-blast apparatus to do the cleaning of rake surface, carry out baking vanish, spraying then.
The garden instrument 14 tooth disjunctor bow types rake of producing as stated above, adopt following evaluation criteria:
A. Hardness Surveillance is got at different 3 and is tested standard HRC38-45.
B. impact strength, height 1524mm, the free-falling of 30lbs object, non-cracking.
C. static load check, handle is apart from drag head 36 " loading 16lbs, the non-cracking permanent deformation is less than 2mm.
D. tooth portion ruggedness test loads 75lbs, and permanent deformation was less than 2mm in 2 minutes.
Above evaluation criteria meets (U.S. Ames True Temper company) requirement.
Claims (1)
1. the method for solid forging disjunctor bow type rake, it selects the 65Mn steel for use is material, its step is as follows:
A. the drag head steel billet is sent into heating furnace and heated more than 1000 ℃, adopt the whole punch forming rake teeth of pressing equipment, and the bow type handle of reservation rake teeth both sides is got the raw materials ready;
B. secondary is gone into heating furnace, heats to more than 900 ℃, bow type handle is got the raw materials ready forge;
C. heat for the third time to more than 1000 ℃ with high-frequency heating apparatus, the roll forging of getting the raw materials ready is stretched to that mostly a bow type handle is long to bow type handle with roll forging equipment;
D. heat for the 4th time to more than 900 ℃, it is synthetic with bender the bow type handle of rake teeth both sides to be got the raw materials ready, then reinforcement of weld moulding bow type handle;
E. heat for the 5th time to more than 900 ℃, adopt pressing equipment, moulding rake teeth radian;
F. harrow the surface cleaning, baking vanish, spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101021571A CN102189381B (en) | 2011-04-22 | 2011-04-22 | Method for integrally forging combined bow-shaped rake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101021571A CN102189381B (en) | 2011-04-22 | 2011-04-22 | Method for integrally forging combined bow-shaped rake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102189381A true CN102189381A (en) | 2011-09-21 |
| CN102189381B CN102189381B (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101021571A Active CN102189381B (en) | 2011-04-22 | 2011-04-22 | Method for integrally forging combined bow-shaped rake |
Country Status (1)
| Country | Link |
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| CN (1) | CN102189381B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554066A (en) * | 2012-01-14 | 2012-07-11 | 唐山市鑫源制锹有限责任公司 | Method for integral press forming of garden rakes |
| CN108971904A (en) * | 2018-08-16 | 2018-12-11 | 中铁工程装备集团盾构再制造有限公司 | Large-diameter shield machine shield body processing method |
| CN109093056A (en) * | 2018-08-13 | 2018-12-28 | 唐山舒适五金工具制造有限公司 | A kind of method and apparatus of improved solid forging bow-shaped rake |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1424794A (en) * | 1972-01-07 | 1976-02-11 | Spear Jackson Tools Ltd | Tool heads |
| CN2292369Y (en) * | 1997-04-30 | 1998-09-30 | 董淑俚 | Horticulture tool |
| CN1751551A (en) * | 2004-09-23 | 2006-03-29 | 爱德华·G·施奈德 | Rake-hoe |
| CN101791676A (en) * | 2010-03-10 | 2010-08-04 | 周文兵 | Integral casting and forging molding process of hoe |
-
2011
- 2011-04-22 CN CN2011101021571A patent/CN102189381B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1424794A (en) * | 1972-01-07 | 1976-02-11 | Spear Jackson Tools Ltd | Tool heads |
| CN2292369Y (en) * | 1997-04-30 | 1998-09-30 | 董淑俚 | Horticulture tool |
| CN1751551A (en) * | 2004-09-23 | 2006-03-29 | 爱德华·G·施奈德 | Rake-hoe |
| CN101791676A (en) * | 2010-03-10 | 2010-08-04 | 周文兵 | Integral casting and forging molding process of hoe |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554066A (en) * | 2012-01-14 | 2012-07-11 | 唐山市鑫源制锹有限责任公司 | Method for integral press forming of garden rakes |
| CN109093056A (en) * | 2018-08-13 | 2018-12-28 | 唐山舒适五金工具制造有限公司 | A kind of method and apparatus of improved solid forging bow-shaped rake |
| CN109093056B (en) * | 2018-08-13 | 2020-06-19 | 唐山舒适五金工具制造有限公司 | Improved method for integrally forging connected bow-shaped harrow |
| US10960451B2 (en) | 2018-08-13 | 2021-03-30 | Tangshan Shushi Hardware Tools Manufacture Co., Ltd. | Enhanced method and equipment of forging bow-shape conjointed rake |
| CN108971904A (en) * | 2018-08-16 | 2018-12-11 | 中铁工程装备集团盾构再制造有限公司 | Large-diameter shield machine shield body processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102189381B (en) | 2012-11-14 |
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| ASS | Succession or assignment of patent right |
Owner name: TANGSHAN SHUSHI HARDWARE TOOL MANUFACTURING CO., L Free format text: FORMER OWNER: TANGSHAN (CHINA) JINHUI HARDWARE + TOOLS MANUFACTURING CO., LTD. Effective date: 20111103 |
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Effective date of registration: 20111103 Address after: 063500, Hebei County, Tangshan City province Luannan Song County Town Industrial Zone Applicant after: Tangshan Shushi Hardware Tool Manufacturing Co., Ltd. Address before: 063500 Hebei province Tangshan City Luannan County Road Song Industrial Zone Applicant before: Tangshan jinhui Hardware &Tools Manufacturing Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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