CN114952187A - Gear shifting operating rod for mini-tiller and manufacturing method thereof - Google Patents
Gear shifting operating rod for mini-tiller and manufacturing method thereof Download PDFInfo
- Publication number
- CN114952187A CN114952187A CN202210509188.7A CN202210509188A CN114952187A CN 114952187 A CN114952187 A CN 114952187A CN 202210509188 A CN202210509188 A CN 202210509188A CN 114952187 A CN114952187 A CN 114952187A
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- China
- Prior art keywords
- operating rod
- rod body
- manufacturing
- tail end
- mini
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14549—Coating rod-like, wire-like or belt-like articles
Abstract
The invention discloses a manufacturing method of a gear shifting operating rod for a mini-tiller, which comprises the following steps: step one, material preparation and flattening: preparing a cylindrical bar stock, taking the tail end of the bar stock and the other position close to the tail end as beating areas, and beating the two beating areas to gradually flatten the two beating areas to form a flat structure with a certain thickness; step two, punching processing: processing and punching are carried out on the two flat structures, so that a through hole is formed in each of the two flat structures, and an operating rod body is obtained; step three, forming an injection molding layer: preparing an injection mold, placing the operating rod body in the second step into the injection mold, injecting hot-melted plastic into the injection mold, and cooling to form an injection layer with a certain thickness on the surface of the operating rod body. The whole process does not need welding, does not need polishing craters, reduces processing procedures, reduces processing cost and also reduces pollution to the environment.
Description
Technical Field
The invention relates to the technical field of parts of a mini-tiller, in particular to a gear shifting operating rod for the mini-tiller and a manufacturing method of the gear shifting operating rod.
Background
The mini-tiller uses a small oil tank or a gasoline engine as power and has the characteristics of light weight, small volume, simple structure and the like. The micro-tillage machine is widely applicable to dry lands, paddy fields, orchards and the like in plains, mountainous areas and hills. The micro-cultivator generally comprises three parts, wherein the first part is a power mechanism and is mainly responsible for providing power for the micro-cultivator to walk; the second part is a ploughing blade part; the third part is a frame body which comprises a frame, wheels, an armrest frame and the like. The gear shifting operating rod of the mini-tiller is used for being connected with an engine, and a user can shift gears conveniently.
In the prior art, the manufacturing method of the shift operating lever comprises the following steps: make gear level, connecting rod and two lantern rings that have the through-hole alone earlier, then, with a lantern ring welding at the tip of connecting rod, another lantern ring welding will form three scars between gear level and connecting rod like this, at last, the processing of polishing to scars, electroplate after the processing of polishing and spray paint, like this, whole process is many, the incremental cost, simultaneously, the sweeps that produces at the in-process of polishing also causes the pollution to the environment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a gear shifting operating rod for a mini-tiller and a manufacturing method thereof, wherein the gear shifting operating rod is integrally formed without polishing.
The technical scheme adopted by the invention is as follows:
the manufacturing method of the gear shifting operating rod for the mini-tiller comprises the following steps of:
step one, material preparation and flattening: preparing a cylindrical bar stock, taking the tail end of the bar stock and the other position close to the tail end as beating areas, and beating the two beating areas to gradually flatten the two beating areas to form a flat structure with a certain thickness;
step two, processing and punching: processing and punching are carried out on the two flat structures, so that the two flat structures form a through hole respectively, and an operating rod body is obtained;
step three, forming an injection molding layer: preparing an injection mold, placing the operating rod body in the second step into the injection mold, injecting hot-melted plastic into the injection mold, and cooling to form an injection layer with a certain thickness on the surface of the operating rod body.
The manufacturing method of this scheme is simple, form the action bars body of integral type structure, in manufacturing process, adopt the mode of beating festival, beat in the corresponding position of bar so that it becomes flat gradually, form flat structure, then, it punches to process respectively on two flat structures again, make two flat structures form a through-hole respectively, obtain the action bars body, and finally, mould plastics again, form the one deck protection film on action bars body surface, whole process need not weld, also need not polish the crater, reduce manufacturing procedure, reduce the processing cost, the pollution to the environment has also been reduced.
Further, in the first step, after the flat structure is formed, the periphery of the flat structure is polished so as to form a circular ring shape as a whole. Therefore, the flat structure is consistent with the shape of the lantern ring in the prior art, and the manufactured gear shifting operating rod can be installed on the mini-tiller.
Further, in step one, the distance between the two flat structures accounts for one fourth of the length of the bar.
Further, in the third step, the thickness of the injection layer is gradually increased at the end part of the operating rod body far away from the tail end of the operating rod body, and the handle is formed. Therefore, the operator can conveniently hold the device, and the use comfort of the operator is improved.
Furthermore, the surface of the injection molding layer positioned on the handle is provided with a micro-bulge. Thus, the friction force is increased by the micro-protrusions, and the phenomenon that the handle is separated when an operator uses the electric tool is reduced.
The gear shifting operating rod for the mini-tiller comprises an operating rod body and is characterized in that flat structures are arranged at the tail end of the operating rod body and at another position close to the tail end, and a through hole is formed in each of the two flat structures; the surface of the operating rod body is provided with an injection molding layer with a certain thickness.
Further, the thickness of the injection layer is gradually increased at the end part of the operating rod body far away from the tail end of the operating rod body, and a handle is formed.
Compared with the prior art, the invention has the following advantages:
the manufacturing method of the invention is simple, the operation rod body with an integrated structure is formed, compared with the prior art, the invention directly processes the bar material to form two flat structures without separately processing the gear shift lever, the connecting rod and the two lantern rings, therefore, in the manufacturing method, a welding mode does not exist, the bar material is directly knotted at the corresponding position to be gradually flattened to form a flat structure with a certain thickness, then the flat structure is respectively processed and punched to form a through hole to obtain the operation rod body, therefore, the operation mode is simple, finally, the operation rod body is placed in an injection mold, hot-melted plastics are injected into the injection mold, after cooling, an injection layer with a certain thickness is formed on the surface of the operation rod body, the outside of the operation rod body is smooth and beautiful after being wrapped by the injection layer, the polishing and electroplating are not needed, the processing procedures are reduced, the cost is reduced, and meanwhile, the pollution source to the environment is also reduced.
Drawings
Fig. 1 is a flow chart of a manufacturing method of a gear shifting operating lever for a mini-tiller according to the invention.
Fig. 2 is a schematic diagram of a bar stock in the manufacturing method of the gear shifting operating rod for the mini-tiller.
Fig. 3 is a schematic view of a flat structure in the manufacturing method of the gear shifting operating lever for the mini-tiller.
Fig. 4 is a structural schematic view of a gear shifting operating lever for a mini-tiller.
In the figure: the bar stock 1, the flat structure 2, the through hole 3, the injection molding layer 4 and the handle 5.
Detailed Description
The invention will be described in connection with the following figures and examples.
In this embodiment: referring to fig. 1 to 4, the manufacturing method of the shift operating lever for the micro-cultivator comprises the following steps:
step one, material preparation and flattening: preparing a cylindrical bar stock 1 according to the process requirements, taking the tail end of the bar stock 1 and the other position close to the tail end as beating areas, and beating the two beating areas to be gradually flattened to form a flat structure 2 with a certain thickness;
step two, processing and punching: processing and punching are carried out on the two flat structures 2, so that the two flat structures 2 respectively form a through hole 3, and an operating rod body is obtained;
step three, forming an injection molding layer 4: and (3) preparing an injection mold, placing the operating rod body in the second step into the injection mold, injecting the hot-melted plastic into the injection mold, and cooling to form an injection layer 4 with a certain thickness on the surface of the operating rod body.
The manufacturing method of this scheme is simple, form the action bars body of integral type structure, in the manufacturing process, adopt the mode of beating festival, beat in the corresponding position of bar 1 festival so that it becomes flat gradually, form flat structure 2, then, it punches to process respectively on two flat structure 2 again, make two flat structure 2 form a through-hole 3 respectively, obtain the action bars body, and finally, mould plastics again, form the one deck protection film on action bars body surface, whole process need not weld, also need not polish the crater, reduce manufacturing procedure, reduce the processing cost, the pollution to the environment has also been reduced.
Preferably, in the first step, after the flat structure 2 is formed, the periphery of the flat structure 2 is ground so as to form a circular ring shape as a whole. Therefore, the flat structure 2 is consistent with the lantern ring in the prior art in shape, and the manufactured gear shifting operating rod can be installed on the mini-tiller.
Preferably, in step one, the distance between the two flat structures 2 is a quarter of the length of the bar 1.
Preferably, in the third step, the thickness of the injection layer 4 is gradually increased at the end part of the operating rod body far away from the tail end thereof, so as to form the handle 5. Therefore, the operator can conveniently hold the device, and the use comfort of the operator is improved.
Preferably, the surface of the injection molded layer 4 on the handle 5 is provided with micro-protrusions. Thus, the friction force is increased by the micro-protrusions, and the phenomenon that the handle 5 is separated when the operator uses the electric tool is reduced.
The manufacturing method of the invention is simple, and the operating rod body with an integrated structure is formed, compared with the prior art, the invention directly processes and forms two flat structures 2 on the bar stock 1, and does not process a gear shift lever, a connecting rod and two lantern rings independently, therefore, in the manufacturing method, a welding mode does not exist, but the corresponding position of the bar stock 1 is directly burdened to gradually flatten the bar stock to form the flat structure 2 with a certain thickness, and then the flat structure 2 is respectively processed and punched to form a through hole 3 to obtain the operating rod body, therefore, the operation mode is simple, finally, the operating rod body is placed in an injection mould, the hot melted plastic is injected into the injection mould, after cooling, an injection layer 4 with a certain thickness is formed on the surface of the operating rod body, the outside of the operating rod body is smooth and beautiful after being wrapped by the injection layer 4, the polishing and electroplating are not needed, the processing procedures are reduced, the cost is reduced, and meanwhile, the pollution source to the environment is also reduced.
The gear shifting operating rod for the mini-tiller comprises an operating rod body, flat structures are arranged at the tail end of the operating rod body and at another position close to the tail end, and a through hole is formed in each of the two flat structures; the surface of the operating rod body is provided with an injection molding layer with a certain thickness. The thickness of the injection molding layer is gradually increased at the end part of the operating rod body far away from the tail end of the operating rod body, and a handle is formed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (7)
1. The manufacturing method of the gear shifting operating rod for the mini-tiller is characterized by comprising the following steps of:
step one, material preparation and flattening: preparing a cylindrical bar stock according to the process requirement, taking the tail end of the bar stock and the other position close to the tail end as beating areas, and beating the two beating areas to be gradually flattened to form a flat structure with a certain thickness;
step two, processing and punching: processing and punching are carried out on the two flat structures, so that the two flat structures form a through hole respectively, and an operating rod body is obtained;
step three, forming an injection molding layer: preparing an injection mold, placing the operating rod body in the second step into the injection mold, injecting hot-melted plastic into the injection mold, and cooling to form an injection layer with a certain thickness on the surface of the operating rod body.
2. The manufacturing method of a shift operating lever for a micro-cultivator of claim 1, wherein in the first step, after the flat structure is formed, the periphery of the flat structure is ground to form a circular ring shape as a whole.
3. The method for manufacturing a shift operating lever for a micro-cultivator of claim 1, wherein in step one, the distance between the two flat structures occupies one quarter of the length of the bar stock.
4. The manufacturing method of the shift operating lever for the mini-tiller according to claim 1, wherein in step three, the thickness of the injection molding layer is gradually increased at the end part of the operating lever body far away from the tail end of the operating lever body to form the handle.
5. The manufacturing method of the gear shifting operating rod for the micro-cultivator of claim 4, wherein the surface of the injection molding layer positioned on the handle is provided with the micro-protrusions.
6. The gear shifting operating rod for the mini-tiller comprises an operating rod body and is characterized in that flat structures are arranged at the tail end of the operating rod body and at another position close to the tail end, and a through hole is formed in each of the two flat structures; the surface of the operating rod body is provided with an injection molding layer with a certain thickness.
7. The shift operating lever for the mini-tiller according to claim 6, comprising an operating lever body, wherein the thickness of the injection layer is gradually increased at the end of the operating lever body far away from the tail end of the operating lever body to form a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210509188.7A CN114952187A (en) | 2022-05-11 | 2022-05-11 | Gear shifting operating rod for mini-tiller and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210509188.7A CN114952187A (en) | 2022-05-11 | 2022-05-11 | Gear shifting operating rod for mini-tiller and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114952187A true CN114952187A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210509188.7A Pending CN114952187A (en) | 2022-05-11 | 2022-05-11 | Gear shifting operating rod for mini-tiller and manufacturing method thereof |
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| CN (1) | CN114952187A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992462A (en) * | 2009-08-14 | 2011-03-30 | 杭州巨星科技股份有限公司 | Tool handle and manufacturing method thereof |
| CN203162117U (en) * | 2013-01-24 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Gear shifting control mechanism |
| US20150053363A1 (en) * | 2012-04-17 | 2015-02-26 | Jiangsu University | Method for manufacturing composite double-metal fracture splitting connecting rod |
| CN206092925U (en) * | 2016-08-29 | 2017-04-12 | 盖尔瑞孚艾斯曼（昆山）汽车零部件有限公司 | Handle with highlight ornamental strip |
| CN106958648A (en) * | 2017-04-24 | 2017-07-18 | 重庆华世丹机械制造有限公司 | Mini-tiller gearshift drag link mechanism |
| CN209067827U (en) * | 2018-08-29 | 2019-07-05 | 上海通工汽车零部件有限公司 | It is easy to the gear lever of gear-shifting knob contraposition installation |
| CN209688071U (en) * | 2019-02-15 | 2019-11-26 | 阿兹米特汽配（佛山）有限公司 | A kind of gear lever |
| DE102018128732A1 (en) * | 2018-10-02 | 2020-04-02 | Hyundai Motor Company | Gear shift lever device for a vehicle |
| CN113955618A (en) * | 2021-10-25 | 2022-01-21 | 巨力索具股份有限公司 | Hoisting rod piece for caisson and manufacturing method thereof |
-
2022
- 2022-05-11 CN CN202210509188.7A patent/CN114952187A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992462A (en) * | 2009-08-14 | 2011-03-30 | 杭州巨星科技股份有限公司 | Tool handle and manufacturing method thereof |
| US20150053363A1 (en) * | 2012-04-17 | 2015-02-26 | Jiangsu University | Method for manufacturing composite double-metal fracture splitting connecting rod |
| CN203162117U (en) * | 2013-01-24 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Gear shifting control mechanism |
| CN206092925U (en) * | 2016-08-29 | 2017-04-12 | 盖尔瑞孚艾斯曼（昆山）汽车零部件有限公司 | Handle with highlight ornamental strip |
| CN106958648A (en) * | 2017-04-24 | 2017-07-18 | 重庆华世丹机械制造有限公司 | Mini-tiller gearshift drag link mechanism |
| CN209067827U (en) * | 2018-08-29 | 2019-07-05 | 上海通工汽车零部件有限公司 | It is easy to the gear lever of gear-shifting knob contraposition installation |
| DE102018128732A1 (en) * | 2018-10-02 | 2020-04-02 | Hyundai Motor Company | Gear shift lever device for a vehicle |
| CN209688071U (en) * | 2019-02-15 | 2019-11-26 | 阿兹米特汽配（佛山）有限公司 | A kind of gear lever |
| CN113955618A (en) * | 2021-10-25 | 2022-01-21 | 巨力索具股份有限公司 | Hoisting rod piece for caisson and manufacturing method thereof |
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